34 files changed, 12854 insertions, 0 deletions
diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt
index 012858d2b119..c903db869dd6 100644
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -460,6 +460,25 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
    The power-management is supported.
+  Module snd-ctxfi
+  ----------------
+    Module for Creative Sound Blaster X-Fi boards (20k1 / 20k2 chips)
+        * Creative Sound Blaster X-Fi Titanium Fatal1ty Champion Series
+        * Creative Sound Blaster X-Fi Titanium Fatal1ty Professional Series
+        * Creative Sound Blaster X-Fi Titanium Professional Audio
+        * Creative Sound Blaster X-Fi Titanium
+        * Creative Sound Blaster X-Fi Elite Pro
+        * Creative Sound Blaster X-Fi Platinum
+        * Creative Sound Blaster X-Fi Fatal1ty
+        * Creative Sound Blaster X-Fi XtremeGamer
+        * Creative Sound Blaster X-Fi XtremeMusic
+    reference_rate      - reference sample rate, 44100 or 48000 (default)
+    multiple            - multiple to ref. sample rate, 1 or 2 (default)
+    This module supports multiple cards.
  Module snd-darla20
  ------------------
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 0f71812d67d3..36b8ff9fe259 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -1314,6 +1314,13 @@
 #define PCI_VENDOR_ID_CREATIVE          0x1102 /* duplicate: ECTIVA */
 #define PCI_DEVICE_ID_CREATIVE_EMU10K1  0x0002
+#define PCI_DEVICE_ID_CREATIVE_20K1     0x0005
+#define PCI_DEVICE_ID_CREATIVE_20K2     0x000b
+#define PCI_SUBDEVICE_ID_CREATIVE_SB0760        0x0024
+#define PCI_SUBDEVICE_ID_CREATIVE_SB08801       0x0041
+#define PCI_SUBDEVICE_ID_CREATIVE_SB08802       0x0042
+#define PCI_SUBDEVICE_ID_CREATIVE_SB08803       0x0043
+#define PCI_SUBDEVICE_ID_CREATIVE_HENDRIX       0x6000
 #define PCI_VENDOR_ID_ECTIVA            0x1102 /* duplicate: CREATIVE */
 #define PCI_DEVICE_ID_ECTIVA_EV1938     0x8938
diff --git a/sound/pci/Kconfig b/sound/pci/Kconfig
index 93422e3a3f0c..3a7640feaf92 100644
--- a/sound/pci/Kconfig
+++ b/sound/pci/Kconfig
@@ -275,6 +275,16 @@ config SND_CS5535AUDIO
          To compile this driver as a module, choose M here: the module
          will be called snd-cs5535audio.
+config SND_CTXFI
+        tristate "Creative Sound Blaster X-Fi"
+        select SND_PCM
+        help
+          If you want to use soundcards based on Creative Sound Blastr X-Fi
+          boards with 20k1 or 20k2 chips, say Y here.
+          To compile this driver as a module, choose M here: the module
+          will be called snd-ctxfi.
 config SND_DARLA20
        tristate "(Echoaudio) Darla20"
        select FW_LOADER
diff --git a/sound/pci/Makefile b/sound/pci/Makefile
index 65b25d221cd2..6a1281ec01e3 100644
--- a/sound/pci/Makefile
+++ b/sound/pci/Makefile
@@ -59,6 +59,7 @@ obj-$(CONFIG_SND) += \
        ali5451/ \
        au88x0/ \
        aw2/ \
+        ctxfi/ \
        ca0106/ \
        cs46xx/ \
        cs5535audio/ \
diff --git a/sound/pci/ctxfi/Makefile b/sound/pci/ctxfi/Makefile
new file mode 100644
index 000000000000..15075f89e98a
--- /dev/null
+++ b/sound/pci/ctxfi/Makefile
@@ -0,0 +1,5 @@
+snd-ctxfi-objs := xfi.o ctatc.o ctvmem.o ctpcm.o ctmixer.o ctresource.o \
+        ctsrc.o ctamixer.o ctdaio.o ctimap.o cthardware.o cttimer.o \
+        cthw20k2.o cthw20k1.o
+obj-$(CONFIG_SND_CTXFI) += snd-ctxfi.o
diff --git a/sound/pci/ctxfi/ct20k1reg.h b/sound/pci/ctxfi/ct20k1reg.h
new file mode 100644
index 000000000000..f2e34e3f27ee
--- /dev/null
+++ b/sound/pci/ctxfi/ct20k1reg.h
@@ -0,0 +1,636 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ */
+#ifndef CT20K1REG_H
+#define CT20k1REG_H
+/* 20k1 registers */
+#define         DSPXRAM_START                   0x000000
+#define         DSPXRAM_END                     0x013FFC
+#define         DSPAXRAM_START                  0x020000
+#define         DSPAXRAM_END                    0x023FFC
+#define         DSPYRAM_START                   0x040000
+#define         DSPYRAM_END                     0x04FFFC
+#define         DSPAYRAM_START                  0x020000
+#define         DSPAYRAM_END                    0x063FFC
+#define         DSPMICRO_START                  0x080000
+#define         DSPMICRO_END                    0x0B3FFC
+#define         DSP0IO_START                    0x100000
+#define         DSP0IO_END                      0x101FFC
+#define         AUDIORINGIPDSP0_START           0x100000
+#define         AUDIORINGIPDSP0_END             0x1003FC
+#define         AUDIORINGOPDSP0_START           0x100400
+#define         AUDIORINGOPDSP0_END             0x1007FC
+#define         AUDPARARINGIODSP0_START         0x100800
+#define         AUDPARARINGIODSP0_END           0x100BFC
+#define         DSP0LOCALHWREG_START            0x100C00
+#define         DSP0LOCALHWREG_END              0x100C3C
+#define         DSP0XYRAMAGINDEX_START          0x100C40
+#define         DSP0XYRAMAGINDEX_END            0x100C5C
+#define         DSP0XYRAMAGMDFR_START           0x100C60
+#define         DSP0XYRAMAGMDFR_END             0x100C7C
+#define         DSP0INTCONTLVEC_START           0x100C80
+#define         DSP0INTCONTLVEC_END             0x100CD8
+#define         INTCONTLGLOBALREG_START         0x100D1C
+#define         INTCONTLGLOBALREG_END           0x100D3C
+#define         HOSTINTFPORTADDRCONTDSP0        0x100D40
+#define         HOSTINTFPORTDATADSP0            0x100D44
+#define         TIME0PERENBDSP0                 0x100D60
+#define         TIME0COUNTERDSP0                0x100D64
+#define         TIME1PERENBDSP0                 0x100D68
+#define         TIME1COUNTERDSP0                0x100D6C
+#define         TIME2PERENBDSP0                 0x100D70
+#define         TIME2COUNTERDSP0                0x100D74
+#define         TIME3PERENBDSP0                 0x100D78
+#define         TIME3COUNTERDSP0                0x100D7C
+#define         XRAMINDOPERREFNOUP_STARTDSP0    0x100D80
+#define         XRAMINDOPERREFNOUP_ENDDSP0      0x100D9C
+#define         XRAMINDOPERREFUP_STARTDSP0      0x100DA0
+#define         XRAMINDOPERREFUP_ENDDSP0        0x100DBC
+#define         YRAMINDOPERREFNOUP_STARTDSP0    0x100DC0
+#define         YRAMINDOPERREFNOUP_ENDDSP0      0x100DDC
+#define         YRAMINDOPERREFUP_STARTDSP0      0x100DE0
+#define         YRAMINDOPERREFUP_ENDDSP0        0x100DFC
+#define         DSP0CONDCODE                    0x100E00
+#define         DSP0STACKFLAG                   0x100E04
+#define         DSP0PROGCOUNTSTACKPTREG         0x100E08
+#define         DSP0PROGCOUNTSTACKDATAREG       0x100E0C
+#define         DSP0CURLOOPADDRREG              0x100E10
+#define         DSP0CURLOOPCOUNT                0x100E14
+#define         DSP0TOPLOOPCOUNTSTACK           0x100E18
+#define         DSP0TOPLOOPADDRSTACK            0x100E1C
+#define         DSP0LOOPSTACKPTR                0x100E20
+#define         DSP0STASSTACKDATAREG            0x100E24
+#define         DSP0STASSTACKPTR                0x100E28
+#define         DSP0PROGCOUNT                   0x100E2C
+#define         GLOBDSPDEBGREG                  0x100E30
+#define         GLOBDSPBREPTRREG                0x100E30
+#define         DSP0XYRAMBASE_START             0x100EA0
+#define         DSP0XYRAMBASE_END               0x100EBC
+#define         DSP0XYRAMLENG_START             0x100EC0
+#define         DSP0XYRAMLENG_END               0x100EDC
+#define         SEMAPHOREREGDSP0                0x100EE0
+#define         DSP0INTCONTMASKREG              0x100EE4
+#define         DSP0INTCONTPENDREG              0x100EE8
+#define         DSP0INTCONTSERVINT              0x100EEC
+#define         DSPINTCONTEXTINTMODREG          0x100EEC
+#define         GPIODSP0                        0x100EFC
+#define         DMADSPBASEADDRREG_STARTDSP0     0x100F00
+#define         DMADSPBASEADDRREG_ENDDSP0       0x100F1C
+#define         DMAHOSTBASEADDRREG_STARTDSP0    0x100F20
+#define         DMAHOSTBASEADDRREG_ENDDSP0      0x100F3C
+#define         DMADSPCURADDRREG_STARTDSP0      0x100F40
+#define         DMADSPCURADDRREG_ENDDSP0        0x100F5C
+#define         DMAHOSTCURADDRREG_STARTDSP0     0x100F60
+#define         DMAHOSTCURADDRREG_ENDDSP0       0x100F7C
+#define         DMATANXCOUNTREG_STARTDSP0       0x100F80
+#define         DMATANXCOUNTREG_ENDDSP0         0x100F9C
+#define         DMATIMEBUGREG_STARTDSP0         0x100FA0
+#define         DMATIMEBUGREG_ENDDSP0           0x100FAC
+#define         DMACNTLMODFREG_STARTDSP0        0x100FA0
+#define         DMACNTLMODFREG_ENDDSP0          0x100FAC
+#define         DMAGLOBSTATSREGDSP0             0x100FEC
+#define         DSP0XGPRAM_START                0x101000
+#define         DSP0XGPRAM_END                  0x1017FC
+#define         DSP0YGPRAM_START                0x101800
+#define         DSP0YGPRAM_END                  0x101FFC
+#define         AUDIORINGIPDSP1_START           0x102000
+#define         AUDIORINGIPDSP1_END             0x1023FC
+#define         AUDIORINGOPDSP1_START           0x102400
+#define         AUDIORINGOPDSP1_END             0x1027FC
+#define         AUDPARARINGIODSP1_START         0x102800
+#define         AUDPARARINGIODSP1_END           0x102BFC
+#define         DSP1LOCALHWREG_START            0x102C00
+#define         DSP1LOCALHWREG_END              0x102C3C
+#define         DSP1XYRAMAGINDEX_START          0x102C40
+#define         DSP1XYRAMAGINDEX_END            0x102C5C
+#define         DSP1XYRAMAGMDFR_START           0x102C60
+#define         DSP1XYRAMAGMDFR_END             0x102C7C
+#define         DSP1INTCONTLVEC_START           0x102C80
+#define         DSP1INTCONTLVEC_END             0x102CD8
+#define         HOSTINTFPORTADDRCONTDSP1        0x102D40
+#define         HOSTINTFPORTDATADSP1            0x102D44
+#define         TIME0PERENBDSP1                 0x102D60
+#define         TIME0COUNTERDSP1                0x102D64
+#define         TIME1PERENBDSP1                 0x102D68
+#define         TIME1COUNTERDSP1                0x102D6C
+#define         TIME2PERENBDSP1                 0x102D70
+#define         TIME2COUNTERDSP1                0x102D74
+#define         TIME3PERENBDSP1                 0x102D78
+#define         TIME3COUNTERDSP1                0x102D7C
+#define         XRAMINDOPERREFNOUP_STARTDSP1    0x102D80
+#define         XRAMINDOPERREFNOUP_ENDDSP1      0x102D9C
+#define         XRAMINDOPERREFUP_STARTDSP1      0x102DA0
+#define         XRAMINDOPERREFUP_ENDDSP1        0x102DBC
+#define         YRAMINDOPERREFNOUP_STARTDSP1    0x102DC0
+#define         YRAMINDOPERREFNOUP_ENDDSP1      0x102DDC
+#define         YRAMINDOPERREFUP_STARTDSP1      0x102DE0
+#define         YRAMINDOPERREFUP_ENDDSP1        0x102DFC
+#define         DSP1CONDCODE                    0x102E00
+#define         DSP1STACKFLAG                   0x102E04
+#define         DSP1PROGCOUNTSTACKPTREG         0x102E08
+#define         DSP1PROGCOUNTSTACKDATAREG       0x102E0C
+#define         DSP1CURLOOPADDRREG              0x102E10
+#define         DSP1CURLOOPCOUNT                0x102E14
+#define         DSP1TOPLOOPCOUNTSTACK           0x102E18
+#define         DSP1TOPLOOPADDRSTACK            0x102E1C
+#define         DSP1LOOPSTACKPTR                0x102E20
+#define         DSP1STASSTACKDATAREG            0x102E24
+#define         DSP1STASSTACKPTR                0x102E28
+#define         DSP1PROGCOUNT                   0x102E2C
+#define         DSP1XYRAMBASE_START             0x102EA0
+#define         DSP1XYRAMBASE_END               0x102EBC
+#define         DSP1XYRAMLENG_START             0x102EC0
+#define         DSP1XYRAMLENG_END               0x102EDC
+#define         SEMAPHOREREGDSP1                0x102EE0
+#define         DSP1INTCONTMASKREG              0x102EE4
+#define         DSP1INTCONTPENDREG              0x102EE8
+#define         DSP1INTCONTSERVINT              0x102EEC
+#define         GPIODSP1                        0x102EFC
+#define         DMADSPBASEADDRREG_STARTDSP1     0x102F00
+#define         DMADSPBASEADDRREG_ENDDSP1       0x102F1C
+#define         DMAHOSTBASEADDRREG_STARTDSP1    0x102F20
+#define         DMAHOSTBASEADDRREG_ENDDSP1      0x102F3C
+#define         DMADSPCURADDRREG_STARTDSP1      0x102F40
+#define         DMADSPCURADDRREG_ENDDSP1        0x102F5C
+#define         DMAHOSTCURADDRREG_STARTDSP1     0x102F60
+#define         DMAHOSTCURADDRREG_ENDDSP1       0x102F7C
+#define         DMATANXCOUNTREG_STARTDSP1       0x102F80
+#define         DMATANXCOUNTREG_ENDDSP1         0x102F9C
+#define         DMATIMEBUGREG_STARTDSP1         0x102FA0
+#define         DMATIMEBUGREG_ENDDSP1           0x102FAC
+#define         DMACNTLMODFREG_STARTDSP1        0x102FA0
+#define         DMACNTLMODFREG_ENDDSP1          0x102FAC
+#define         DMAGLOBSTATSREGDSP1             0x102FEC
+#define         DSP1XGPRAM_START                0x103000
+#define         DSP1XGPRAM_END                  0x1033FC
+#define         DSP1YGPRAM_START                0x103400
+#define         DSP1YGPRAM_END                  0x1037FC
+#define         AUDIORINGIPDSP2_START           0x104000
+#define         AUDIORINGIPDSP2_END             0x1043FC
+#define         AUDIORINGOPDSP2_START           0x104400
+#define         AUDIORINGOPDSP2_END             0x1047FC
+#define         AUDPARARINGIODSP2_START         0x104800
+#define         AUDPARARINGIODSP2_END           0x104BFC
+#define         DSP2LOCALHWREG_START            0x104C00
+#define         DSP2LOCALHWREG_END              0x104C3C
+#define         DSP2XYRAMAGINDEX_START          0x104C40
+#define         DSP2XYRAMAGINDEX_END            0x104C5C
+#define         DSP2XYRAMAGMDFR_START           0x104C60
+#define         DSP2XYRAMAGMDFR_END             0x104C7C
+#define         DSP2INTCONTLVEC_START           0x104C80
+#define         DSP2INTCONTLVEC_END             0x104CD8
+#define         HOSTINTFPORTADDRCONTDSP2        0x104D40
+#define         HOSTINTFPORTDATADSP2            0x104D44
+#define         TIME0PERENBDSP2                 0x104D60
+#define         TIME0COUNTERDSP2                0x104D64
+#define         TIME1PERENBDSP2                 0x104D68
+#define         TIME1COUNTERDSP2                0x104D6C
+#define         TIME2PERENBDSP2                 0x104D70
+#define         TIME2COUNTERDSP2                0x104D74
+#define         TIME3PERENBDSP2                 0x104D78
+#define         TIME3COUNTERDSP2                0x104D7C
+#define         XRAMINDOPERREFNOUP_STARTDSP2    0x104D80
+#define         XRAMINDOPERREFNOUP_ENDDSP2      0x104D9C
+#define         XRAMINDOPERREFUP_STARTDSP2      0x104DA0
+#define         XRAMINDOPERREFUP_ENDDSP2        0x104DBC
+#define         YRAMINDOPERREFNOUP_STARTDSP2    0x104DC0
+#define         YRAMINDOPERREFNOUP_ENDDSP2      0x104DDC
+#define         YRAMINDOPERREFUP_STARTDSP2      0x104DE0
+#define         YRAMINDOPERREFUP_ENDDSP2        0x104DFC
+#define         DSP2CONDCODE                    0x104E00
+#define         DSP2STACKFLAG                   0x104E04
+#define         DSP2PROGCOUNTSTACKPTREG         0x104E08
+#define         DSP2PROGCOUNTSTACKDATAREG       0x104E0C
+#define         DSP2CURLOOPADDRREG              0x104E10
+#define         DSP2CURLOOPCOUNT                0x104E14
+#define         DSP2TOPLOOPCOUNTSTACK           0x104E18
+#define         DSP2TOPLOOPADDRSTACK            0x104E1C
+#define         DSP2LOOPSTACKPTR                0x104E20
+#define         DSP2STASSTACKDATAREG            0x104E24
+#define         DSP2STASSTACKPTR                0x104E28
+#define         DSP2PROGCOUNT                   0x104E2C
+#define         DSP2XYRAMBASE_START             0x104EA0
+#define         DSP2XYRAMBASE_END               0x104EBC
+#define         DSP2XYRAMLENG_START             0x104EC0
+#define         DSP2XYRAMLENG_END               0x104EDC
+#define         SEMAPHOREREGDSP2                0x104EE0
+#define         DSP2INTCONTMASKREG              0x104EE4
+#define         DSP2INTCONTPENDREG              0x104EE8
+#define         DSP2INTCONTSERVINT              0x104EEC
+#define         GPIODSP2                        0x104EFC
+#define         DMADSPBASEADDRREG_STARTDSP2     0x104F00
+#define         DMADSPBASEADDRREG_ENDDSP2       0x104F1C
+#define         DMAHOSTBASEADDRREG_STARTDSP2    0x104F20
+#define         DMAHOSTBASEADDRREG_ENDDSP2      0x104F3C
+#define         DMADSPCURADDRREG_STARTDSP2      0x104F40
+#define         DMADSPCURADDRREG_ENDDSP2        0x104F5C
+#define         DMAHOSTCURADDRREG_STARTDSP2     0x104F60
+#define         DMAHOSTCURADDRREG_ENDDSP2       0x104F7C
+#define         DMATANXCOUNTREG_STARTDSP2       0x104F80
+#define         DMATANXCOUNTREG_ENDDSP2         0x104F9C
+#define         DMATIMEBUGREG_STARTDSP2         0x104FA0
+#define         DMATIMEBUGREG_ENDDSP2           0x104FAC
+#define         DMACNTLMODFREG_STARTDSP2        0x104FA0
+#define         DMACNTLMODFREG_ENDDSP2          0x104FAC
+#define         DMAGLOBSTATSREGDSP2             0x104FEC
+#define         DSP2XGPRAM_START                0x105000
+#define         DSP2XGPRAM_END                  0x1051FC
+#define         DSP2YGPRAM_START                0x105800
+#define         DSP2YGPRAM_END                  0x1059FC
+#define         AUDIORINGIPDSP3_START           0x106000
+#define         AUDIORINGIPDSP3_END             0x1063FC
+#define         AUDIORINGOPDSP3_START           0x106400
+#define         AUDIORINGOPDSP3_END             0x1067FC
+#define         AUDPARARINGIODSP3_START         0x106800
+#define         AUDPARARINGIODSP3_END           0x106BFC
+#define         DSP3LOCALHWREG_START            0x106C00
+#define         DSP3LOCALHWREG_END              0x106C3C
+#define         DSP3XYRAMAGINDEX_START          0x106C40
+#define         DSP3XYRAMAGINDEX_END            0x106C5C
+#define         DSP3XYRAMAGMDFR_START           0x106C60
+#define         DSP3XYRAMAGMDFR_END             0x106C7C
+#define         DSP3INTCONTLVEC_START           0x106C80
+#define         DSP3INTCONTLVEC_END             0x106CD8
+#define         HOSTINTFPORTADDRCONTDSP3        0x106D40
+#define         HOSTINTFPORTDATADSP3            0x106D44
+#define         TIME0PERENBDSP3                 0x106D60
+#define         TIME0COUNTERDSP3                0x106D64
+#define         TIME1PERENBDSP3                 0x106D68
+#define         TIME1COUNTERDSP3                0x106D6C
+#define         TIME2PERENBDSP3                 0x106D70
+#define         TIME2COUNTERDSP3                0x106D74
+#define         TIME3PERENBDSP3                 0x106D78
+#define         TIME3COUNTERDSP3                0x106D7C
+#define         XRAMINDOPERREFNOUP_STARTDSP3    0x106D80
+#define         XRAMINDOPERREFNOUP_ENDDSP3      0x106D9C
+#define         XRAMINDOPERREFUP_STARTDSP3      0x106DA0
+#define         XRAMINDOPERREFUP_ENDDSP3        0x106DBC
+#define         YRAMINDOPERREFNOUP_STARTDSP3    0x106DC0
+#define         YRAMINDOPERREFNOUP_ENDDSP3      0x106DDC
+#define         YRAMINDOPERREFUP_STARTDSP3      0x106DE0
+#define         YRAMINDOPERREFUP_ENDDSP3        0x100DFC
+#define         DSP3CONDCODE                    0x106E00
+#define         DSP3STACKFLAG                   0x106E04
+#define         DSP3PROGCOUNTSTACKPTREG         0x106E08
+#define         DSP3PROGCOUNTSTACKDATAREG       0x106E0C
+#define         DSP3CURLOOPADDRREG              0x106E10
+#define         DSP3CURLOOPCOUNT                0x106E14
+#define         DSP3TOPLOOPCOUNTSTACK           0x106E18
+#define         DSP3TOPLOOPADDRSTACK            0x106E1C
+#define         DSP3LOOPSTACKPTR                0x106E20
+#define         DSP3STASSTACKDATAREG            0x106E24
+#define         DSP3STASSTACKPTR                0x106E28
+#define         DSP3PROGCOUNT                   0x106E2C
+#define         DSP3XYRAMBASE_START             0x106EA0
+#define         DSP3XYRAMBASE_END               0x106EBC
+#define         DSP3XYRAMLENG_START             0x106EC0
+#define         DSP3XYRAMLENG_END               0x106EDC
+#define         SEMAPHOREREGDSP3                0x106EE0
+#define         DSP3INTCONTMASKREG              0x106EE4
+#define         DSP3INTCONTPENDREG              0x106EE8
+#define         DSP3INTCONTSERVINT              0x106EEC
+#define         GPIODSP3                        0x106EFC
+#define         DMADSPBASEADDRREG_STARTDSP3     0x106F00
+#define         DMADSPBASEADDRREG_ENDDSP3       0x106F1C
+#define         DMAHOSTBASEADDRREG_STARTDSP3    0x106F20
+#define         DMAHOSTBASEADDRREG_ENDDSP3      0x106F3C
+#define         DMADSPCURADDRREG_STARTDSP3      0x106F40
+#define         DMADSPCURADDRREG_ENDDSP3        0x106F5C
+#define         DMAHOSTCURADDRREG_STARTDSP3     0x106F60
+#define         DMAHOSTCURADDRREG_ENDDSP3       0x106F7C
+#define         DMATANXCOUNTREG_STARTDSP3       0x106F80
+#define         DMATANXCOUNTREG_ENDDSP3         0x106F9C
+#define         DMATIMEBUGREG_STARTDSP3         0x106FA0
+#define         DMATIMEBUGREG_ENDDSP3           0x106FAC
+#define         DMACNTLMODFREG_STARTDSP3        0x106FA0
+#define         DMACNTLMODFREG_ENDDSP3          0x106FAC
+#define         DMAGLOBSTATSREGDSP3             0x106FEC
+#define         DSP3XGPRAM_START                0x107000
+#define         DSP3XGPRAM_END                  0x1071FC
+#define         DSP3YGPRAM_START                0x107800
+#define         DSP3YGPRAM_END                  0x1079FC
+/* end of DSP reg definitions */
+#define         DSPAIMAP_START                  0x108000
+#define         DSPAIMAP_END                    0x1083FC
+#define         DSPPIMAP_START                  0x108400
+#define         DSPPIMAP_END                    0x1087FC
+#define         DSPPOMAP_START                  0x108800
+#define         DSPPOMAP_END                    0x108BFC
+#define         DSPPOCTL                        0x108C00
+#define         TKCTL_START                     0x110000
+#define         TKCTL_END                       0x110FFC
+#define         TKCC_START                      0x111000
+#define         TKCC_END                        0x111FFC
+#define         TKIMAP_START                    0x112000
+#define         TKIMAP_END                      0x112FFC
+#define         TKDCTR16                        0x113000
+#define         TKPB16                          0x113004
+#define         TKBS16                          0x113008
+#define         TKDCTR32                        0x11300C
+#define         TKPB32                          0x113010
+#define         TKBS32                          0x113014
+#define         ICDCTR16                        0x113018
+#define         ITBS16                          0x11301C
+#define         ICDCTR32                        0x113020
+#define         ITBS32                          0x113024
+#define         ITSTART                         0x113028
+#define         TKSQ                            0x11302C
+#define         TKSCCTL_START                   0x114000
+#define         TKSCCTL_END                     0x11403C
+#define         TKSCADR_START                   0x114100
+#define         TKSCADR_END                     0x11413C
+#define         TKSCDATAX_START                 0x114800
+#define         TKSCDATAX_END                   0x1149FC
+#define         TKPCDATAX_START                 0x120000
+#define         TKPCDATAX_END                   0x12FFFC
+#define         MALSA                           0x130000
+#define         MAPPHA                          0x130004
+#define         MAPPLA                          0x130008
+#define         MALSB                           0x130010
+#define         MAPPHB                          0x130014
+#define         MAPPLB                          0x130018
+#define         TANSPORTMAPABREGS_START         0x130020
+#define         TANSPORTMAPABREGS_END           0x13A2FC
+#define         PTPAHX                          0x13B000
+#define         PTPALX                          0x13B004
+#define         TANSPPAGETABLEPHYADDR015_START  0x13B008
+#define         TANSPPAGETABLEPHYADDR015_END    0x13B07C
+#define         TRNQADRX_START                  0x13B100
+#define         TRNQADRX_END                    0x13B13C
+#define         TRNQTIMX_START                  0x13B200
+#define         TRNQTIMX_END                    0x13B23C
+#define         TRNQAPARMX_START                0x13B300
+#define         TRNQAPARMX_END                  0x13B33C
+#define         TRNQCNT                         0x13B400
+#define         TRNCTL                          0x13B404
+#define         TRNIS                           0x13B408
+#define         TRNCURTS                        0x13B40C
+#define         AMOP_START                      0x140000
+#define         AMOPLO                          0x140000
+#define         AMOPHI                          0x140004
+#define         AMOP_END                        0x147FFC
+#define         PMOP_START                      0x148000
+#define         PMOPLO                          0x148000
+#define         PMOPHI                          0x148004
+#define         PMOP_END                        0x14FFFC
+#define         PCURR_START                     0x150000
+#define         PCURR_END                       0x153FFC
+#define         PTRAG_START                     0x154000
+#define         PTRAG_END                       0x157FFC
+#define         PSR_START                       0x158000
+#define         PSR_END                         0x15BFFC
+#define         PFSTAT4SEG_START                0x160000
+#define         PFSTAT4SEG_END                  0x160BFC
+#define         PFSTAT2SEG_START                0x160C00
+#define         PFSTAT2SEG_END                  0x1617FC
+#define         PFTARG4SEG_START                0x164000
+#define         PFTARG4SEG_END                  0x164BFC
+#define         PFTARG2SEG_START                0x164C00
+#define         PFTARG2SEG_END                  0x1657FC
+#define         PFSR4SEG_START                  0x168000
+#define         PFSR4SEG_END                    0x168BFC
+#define         PFSR2SEG_START                  0x168C00
+#define         PFSR2SEG_END                    0x1697FC
+#define         PCURRMS4SEG_START               0x16C000
+#define         PCURRMS4SEG_END                 0x16CCFC
+#define         PCURRMS2SEG_START               0x16CC00
+#define         PCURRMS2SEG_END                 0x16D7FC
+#define         PTARGMS4SEG_START               0x170000
+#define         PTARGMS4SEG_END                 0x172FFC
+#define         PTARGMS2SEG_START               0x173000
+#define         PTARGMS2SEG_END                 0x1747FC
+#define         PSRMS4SEG_START                 0x170000
+#define         PSRMS4SEG_END                   0x172FFC
+#define         PSRMS2SEG_START                 0x173000
+#define         PSRMS2SEG_END                   0x1747FC
+#define         PRING_LO_START                  0x190000
+#define         PRING_LO_END                    0x193FFC
+#define         PRING_HI_START                  0x194000
+#define         PRING_HI_END                    0x197FFC
+#define         PRING_LO_HI_START               0x198000
+#define         PRING_LO_HI                     0x198000
+#define         PRING_LO_HI_END                 0x19BFFC
+#define         PINTFIFO                        0x1A0000
+#define         SRCCTL                          0x1B0000
+#define         SRCCCR                          0x1B0004
+#define         SRCIMAP                         0x1B0008
+#define         SRCODDC                         0x1B000C
+#define         SRCCA                           0x1B0010
+#define         SRCCF                           0x1B0014
+#define         SRCSA                           0x1B0018
+#define         SRCLA                           0x1B001C
+#define         SRCCTLSWR                       0x1B0020
+/* SRC HERE */
+#define         SRCALBA                         0x1B002C
+#define         SRCMCTL                         0x1B012C
+#define         SRCCERR                         0x1B022C
+#define         SRCITB                          0x1B032C
+#define         SRCIPM                          0x1B082C
+#define         SRCIP                           0x1B102C
+#define         SRCENBSTAT                      0x1B202C
+#define         SRCENBLO                        0x1B212C
+#define         SRCENBHI                        0x1B222C
+#define         SRCENBS                         0x1B232C
+#define         SRCENB                          0x1B282C
+#define         SRCENB07                        0x1B282C
+#define         SRCENBS07                       0x1B302C
+#define         SRCDN0Z                         0x1B0030
+#define         SRCDN0Z0                        0x1B0030
+#define         SRCDN0Z1                        0x1B0034
+#define         SRCDN0Z2                        0x1B0038
+#define         SRCDN0Z3                        0x1B003C
+#define         SRCDN1Z                         0x1B0040
+#define         SRCDN1Z0                        0x1B0040
+#define         SRCDN1Z1                        0x1B0044
+#define         SRCDN1Z2                        0x1B0048
+#define         SRCDN1Z3                        0x1B004C
+#define         SRCDN1Z4                        0x1B0050
+#define         SRCDN1Z5                        0x1B0054
+#define         SRCDN1Z6                        0x1B0058
+#define         SRCDN1Z7                        0x1B005C
+#define         SRCUPZ                          0x1B0060
+#define         SRCUPZ0                         0x1B0060
+#define         SRCUPZ1                         0x1B0064
+#define         SRCUPZ2                         0x1B0068
+#define         SRCUPZ3                         0x1B006C
+#define         SRCUPZ4                         0x1B0070
+#define         SRCUPZ5                         0x1B0074
+#define         SRCUPZ6                         0x1B0078
+#define         SRCUPZ7                         0x1B007C
+#define         SRCCD0                          0x1B0080
+#define         SRCCD1                          0x1B0084
+#define         SRCCD2                          0x1B0088
+#define         SRCCD3                          0x1B008C
+#define         SRCCD4                          0x1B0090
+#define         SRCCD5                          0x1B0094
+#define         SRCCD6                          0x1B0098
+#define         SRCCD7                          0x1B009C
+#define         SRCCD8                          0x1B00A0
+#define         SRCCD9                          0x1B00A4
+#define         SRCCDA                          0x1B00A8
+#define         SRCCDB                          0x1B00AC
+#define         SRCCDC                          0x1B00B0
+#define         SRCCDD                          0x1B00B4
+#define         SRCCDE                          0x1B00B8
+#define         SRCCDF                          0x1B00BC
+#define         SRCCD10                         0x1B00C0
+#define         SRCCD11                         0x1B00C4
+#define         SRCCD12                         0x1B00C8
+#define         SRCCD13                         0x1B00CC
+#define         SRCCD14                         0x1B00D0
+#define         SRCCD15                         0x1B00D4
+#define         SRCCD16                         0x1B00D8
+#define         SRCCD17                         0x1B00DC
+#define         SRCCD18                         0x1B00E0
+#define         SRCCD19                         0x1B00E4
+#define         SRCCD1A                         0x1B00E8
+#define         SRCCD1B                         0x1B00EC
+#define         SRCCD1C                         0x1B00F0
+#define         SRCCD1D                         0x1B00F4
+#define         SRCCD1E                         0x1B00F8
+#define         SRCCD1F                         0x1B00FC
+#define         SRCCONTRBLOCK_START             0x1B0100
+#define         SRCCONTRBLOCK_END               0x1BFFFC
+#define         FILTOP_START    0x1C0000
+#define         FILTOP_END      0x1C05FC
+#define         FILTIMAP_START  0x1C0800
+#define         FILTIMAP_END    0x1C0DFC
+#define         FILTZ1_START    0x1C1000
+#define         FILTZ1_END      0x1C15FC
+#define         FILTZ2_START    0x1C1800
+#define         FILTZ2_END      0x1C1DFC
+#define         DAOIMAP_START   0x1C5000
+#define         DAOIMAP         0x1C5000
+#define         DAOIMAP_END     0x1C5124
+#define         AC97D           0x1C5400
+#define         AC97A           0x1C5404
+#define         AC97CTL         0x1C5408
+#define         I2SCTL          0x1C5420
+#define         SPOS            0x1C5440
+#define         SPOSA           0x1C5440
+#define         SPOSB           0x1C5444
+#define         SPOSC           0x1C5448
+#define         SPOSD           0x1C544C
+#define         SPISA           0x1C5450
+#define         SPISB           0x1C5454
+#define         SPISC           0x1C5458
+#define         SPISD           0x1C545C
+#define         SPFSCTL         0x1C5460
+#define         SPFS0           0x1C5468
+#define         SPFS1           0x1C546C
+#define         SPFS2           0x1C5470
+#define         SPFS3           0x1C5474
+#define         SPFS4           0x1C5478
+#define         SPFS5           0x1C547C
+#define         SPOCTL          0x1C5480
+#define         SPICTL          0x1C5484
+#define         SPISTS          0x1C5488
+#define         SPINTP          0x1C548C
+#define         SPINTE          0x1C5490
+#define         SPUTCTLAB       0x1C5494
+#define         SPUTCTLCD       0x1C5498
+#define         SRTSPA          0x1C54C0
+#define         SRTSPB          0x1C54C4
+#define         SRTSPC          0x1C54C8
+#define         SRTSPD          0x1C54CC
+#define         SRTSCTL         0x1C54D0
+#define         SRTSCTLA        0x1C54D0
+#define         SRTSCTLB        0x1C54D4
+#define         SRTSCTLC        0x1C54D8
+#define         SRTSCTLD        0x1C54DC
+#define         SRTI2S          0x1C54E0
+#define         SRTICTL         0x1C54F0
+#define         WC              0x1C6000
+#define         TIMR            0x1C6004
+# define        TIMR_IE         (1<<15)
+# define        TIMR_IP         (1<<14)
+#define         GIP             0x1C6010
+#define         GIE             0x1C6014
+#define         DIE             0x1C6018
+#define         DIC             0x1C601C
+#define         GPIO            0x1C6020
+#define         GPIOCTL         0x1C6024
+#define         GPIP            0x1C6028
+#define         GPIE            0x1C602C
+#define         DSPINT0         0x1C6030
+#define         DSPEIOC         0x1C6034
+#define         MUADAT          0x1C6040
+#define         MUACMD          0x1C6044
+#define         MUASTAT         0x1C6044
+#define         MUBDAT          0x1C6048
+#define         MUBCMD          0x1C604C
+#define         MUBSTAT         0x1C604C
+#define         UARTCMA         0x1C6050
+#define         UARTCMB         0x1C6054
+#define         UARTIP          0x1C6058
+#define         UARTIE          0x1C605C
+#define         PLLCTL          0x1C6060
+#define         PLLDCD          0x1C6064
+#define         GCTL            0x1C6070
+#define         ID0             0x1C6080
+#define         ID1             0x1C6084
+#define         ID2             0x1C6088
+#define         ID3             0x1C608C
+#define         SDRCTL          0x1C7000
+#define I2SA_L    0x0L
+#define I2SA_R    0x1L
+#define I2SB_L    0x8L
+#define I2SB_R    0x9L
+#define I2SC_L    0x10L
+#define I2SC_R    0x11L
+#define I2SD_L    0x18L
+#define I2SD_R    0x19L
+#endif /* CT20K1REG_H */
diff --git a/sound/pci/ctxfi/ct20k2reg.h b/sound/pci/ctxfi/ct20k2reg.h
new file mode 100644
index 000000000000..2d07986f57cc
--- /dev/null
+++ b/sound/pci/ctxfi/ct20k2reg.h
@@ -0,0 +1,85 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ */
+#ifndef _20K2REGISTERS_H_
+#define _20K2REGISTERS_H_
+/* Timer Registers */
+#define TIMER_TIMR          0x1B7004
+#define INTERRUPT_GIP       0x1B7010
+#define INTERRUPT_GIE       0x1B7014
+/* I2C Registers */
+#define I2C_IF_ADDRESS   0x1B9000
+#define I2C_IF_WDATA     0x1B9004
+#define I2C_IF_RDATA     0x1B9008
+#define I2C_IF_STATUS    0x1B900C
+#define I2C_IF_WLOCK     0x1B9010
+/* Global Control Registers */
+#define GLOBAL_CNTL_GCTL    0x1B7090
+/* PLL Registers */
+#define PLL_CTL                 0x1B7080
+#define PLL_STAT                0x1B7084
+#define PLL_ENB                 0x1B7088
+/* SRC Registers */
+#define SRC_CTL             0x1A0000 /* 0x1A0000 + (256 * Chn) */
+#define SRC_CCR             0x1A0004 /* 0x1A0004 + (256 * Chn) */
+#define SRC_IMAP            0x1A0008 /* 0x1A0008 + (256 * Chn) */
+#define SRC_CA              0x1A0010 /* 0x1A0010 + (256 * Chn) */
+#define SRC_CF              0x1A0014 /* 0x1A0014 + (256 * Chn) */
+#define SRC_SA              0x1A0018 /* 0x1A0018 + (256 * Chn) */
+#define SRC_LA              0x1A001C /* 0x1A001C + (256 * Chn) */
+#define SRC_CTLSWR          0x1A0020 /* 0x1A0020 + (256 * Chn) */
+#define SRC_CD              0x1A0080 /* 0x1A0080 + (256 * Chn) + (4 * Regn) */
+#define SRC_MCTL                0x1A012C
+#define SRC_IP                  0x1A102C /* 0x1A102C + (256 * Regn) */
+#define SRC_ENB                 0x1A282C /* 0x1A282C + (256 * Regn) */
+#define SRC_ENBSTAT             0x1A202C
+#define SRC_ENBSA               0x1A232C
+#define SRC_DN0Z                0x1A0030
+#define SRC_DN1Z                0x1A0040
+#define SRC_UPZ                 0x1A0060
+/* GPIO Registers */
+#define GPIO_DATA           0x1B7020
+#define GPIO_CTRL           0x1B7024
+/* Virtual memory registers */
+#define VMEM_PTPAL          0x1C6300 /* 0x1C6300 + (16 * Chn) */
+#define VMEM_PTPAH          0x1C6304 /* 0x1C6304 + (16 * Chn) */
+#define VMEM_CTL            0x1C7000
+/* Transport Registers */
+#define TRANSPORT_ENB       0x1B6000
+#define TRANSPORT_CTL       0x1B6004
+#define TRANSPORT_INT       0x1B6008
+/* Audio IO */
+#define AUDIO_IO_AIM        0x1B5000 /* 0x1B5000 + (0x04 * Chn) */
+#define AUDIO_IO_TX_CTL     0x1B5400 /* 0x1B5400 + (0x40 * Chn) */
+#define AUDIO_IO_TX_CSTAT_L 0x1B5408 /* 0x1B5408 + (0x40 * Chn) */
+#define AUDIO_IO_TX_CSTAT_H 0x1B540C /* 0x1B540C + (0x40 * Chn) */
+#define AUDIO_IO_RX_CTL     0x1B5410 /* 0x1B5410 + (0x40 * Chn) */
+#define AUDIO_IO_RX_SRT_CTL 0x1B5420 /* 0x1B5420 + (0x40 * Chn) */
+#define AUDIO_IO_MCLK       0x1B5600
+#define AUDIO_IO_TX_BLRCLK  0x1B5604
+#define AUDIO_IO_RX_BLRCLK  0x1B5608
+/* Mixer */
+#define MIXER_AMOPLO            0x130000 /* 0x130000 + (8 * Chn) [4095 : 0] */
+#define MIXER_AMOPHI            0x130004 /* 0x130004 + (8 * Chn) [4095 : 0] */
+#define MIXER_PRING_LO_HI       0x188000 /* 0x188000 + (4 * Chn) [4095 : 0] */
+#define MIXER_PMOPLO            0x138000 /* 0x138000 + (8 * Chn) [4095 : 0] */
+#define MIXER_PMOPHI            0x138004 /* 0x138004 + (8 * Chn) [4095 : 0] */
+#define MIXER_AR_ENABLE         0x19000C
+#endif
diff --git a/sound/pci/ctxfi/ctamixer.c b/sound/pci/ctxfi/ctamixer.c
new file mode 100644
index 000000000000..a1db51b3ead8
--- /dev/null
+++ b/sound/pci/ctxfi/ctamixer.c
@@ -0,0 +1,488 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File        ctamixer.c
+ *
+ * @Brief
+ * This file contains the implementation of the Audio Mixer
+ * resource management object.
+ *
+ * @Author      Liu Chun
+ * @Date        May 21 2008
+ *
+ */
+#include "ctamixer.h"
+#include "cthardware.h"
+#include <linux/slab.h>
+#define AMIXER_RESOURCE_NUM     256
+#define SUM_RESOURCE_NUM        256
+#define AMIXER_Y_IMMEDIATE      1
+#define BLANK_SLOT              4094
+static int amixer_master(struct rsc *rsc)
+{
+        rsc->conj = 0;
+        return rsc->idx = container_of(rsc, struct amixer, rsc)->idx[0];
+}
+static int amixer_next_conj(struct rsc *rsc)
+{
+        rsc->conj++;
+        return container_of(rsc, struct amixer, rsc)->idx[rsc->conj];
+}
+static int amixer_index(const struct rsc *rsc)
+{
+        return container_of(rsc, struct amixer, rsc)->idx[rsc->conj];
+}
+static int amixer_output_slot(const struct rsc *rsc)
+{
+        return (amixer_index(rsc) << 4) + 0x4;
+}
+static struct rsc_ops amixer_basic_rsc_ops = {
+        .master         = amixer_master,
+        .next_conj      = amixer_next_conj,
+        .index          = amixer_index,
+        .output_slot    = amixer_output_slot,
+};
+static int amixer_set_input(struct amixer *amixer, struct rsc *rsc)
+{
+        struct hw *hw;
+        hw = amixer->rsc.hw;
+        hw->amixer_set_mode(amixer->rsc.ctrl_blk, AMIXER_Y_IMMEDIATE);
+        amixer->input = rsc;
+        if (NULL == rsc)
+                hw->amixer_set_x(amixer->rsc.ctrl_blk, BLANK_SLOT);
+        else
+                hw->amixer_set_x(amixer->rsc.ctrl_blk,
+                                        rsc->ops->output_slot(rsc));
+        return 0;
+}
+/* y is a 14-bit immediate constant */
+static int amixer_set_y(struct amixer *amixer, unsigned int y)
+{
+        struct hw *hw;
+        hw = amixer->rsc.hw;
+        hw->amixer_set_y(amixer->rsc.ctrl_blk, y);
+        return 0;
+}
+static int amixer_set_invalid_squash(struct amixer *amixer, unsigned int iv)
+{
+        struct hw *hw;
+        hw = amixer->rsc.hw;
+        hw->amixer_set_iv(amixer->rsc.ctrl_blk, iv);
+        return 0;
+}
+static int amixer_set_sum(struct amixer *amixer, struct sum *sum)
+{
+        struct hw *hw;
+        hw = amixer->rsc.hw;
+        amixer->sum = sum;
+        if (NULL == sum) {
+                hw->amixer_set_se(amixer->rsc.ctrl_blk, 0);
+        } else {
+                hw->amixer_set_se(amixer->rsc.ctrl_blk, 1);
+                hw->amixer_set_sadr(amixer->rsc.ctrl_blk,
+                                        sum->rsc.ops->index(&sum->rsc));
+        }
+        return 0;
+}
+static int amixer_commit_write(struct amixer *amixer)
+{
+        struct hw *hw;
+        unsigned int index;
+        int i;
+        struct rsc *input;
+        struct sum *sum;
+        hw = amixer->rsc.hw;
+        input = amixer->input;
+        sum = amixer->sum;
+        /* Program master and conjugate resources */
+        amixer->rsc.ops->master(&amixer->rsc);
+        if (NULL != input)
+                input->ops->master(input);
+        if (NULL != sum)
+                sum->rsc.ops->master(&sum->rsc);
+        for (i = 0; i < amixer->rsc.msr; i++) {
+                hw->amixer_set_dirty_all(amixer->rsc.ctrl_blk);
+                if (NULL != input) {
+                        hw->amixer_set_x(amixer->rsc.ctrl_blk,
+                                                input->ops->output_slot(input));
+                        input->ops->next_conj(input);
+                }
+                if (NULL != sum) {
+                        hw->amixer_set_sadr(amixer->rsc.ctrl_blk,
+                                                sum->rsc.ops->index(&sum->rsc));
+                        sum->rsc.ops->next_conj(&sum->rsc);
+                }
+                index = amixer->rsc.ops->output_slot(&amixer->rsc);
+                hw->amixer_commit_write(hw, index, amixer->rsc.ctrl_blk);
+                amixer->rsc.ops->next_conj(&amixer->rsc);
+        }
+        amixer->rsc.ops->master(&amixer->rsc);
+        if (NULL != input)
+                input->ops->master(input);
+        if (NULL != sum)
+                sum->rsc.ops->master(&sum->rsc);
+        return 0;
+}
+static int amixer_commit_raw_write(struct amixer *amixer)
+{
+        struct hw *hw;
+        unsigned int index;
+        hw = amixer->rsc.hw;
+        index = amixer->rsc.ops->output_slot(&amixer->rsc);
+        hw->amixer_commit_write(hw, index, amixer->rsc.ctrl_blk);
+        return 0;
+}
+static int amixer_get_y(struct amixer *amixer)
+{
+        struct hw *hw;
+        hw = amixer->rsc.hw;
+        return hw->amixer_get_y(amixer->rsc.ctrl_blk);
+}
+static int amixer_setup(struct amixer *amixer, struct rsc *input,
+                        unsigned int scale, struct sum *sum)
+{
+        amixer_set_input(amixer, input);
+        amixer_set_y(amixer, scale);
+        amixer_set_sum(amixer, sum);
+        amixer_commit_write(amixer);
+        return 0;
+}
+static struct amixer_rsc_ops amixer_ops = {
+        .set_input              = amixer_set_input,
+        .set_invalid_squash     = amixer_set_invalid_squash,
+        .set_scale              = amixer_set_y,
+        .set_sum                = amixer_set_sum,
+        .commit_write           = amixer_commit_write,
+        .commit_raw_write       = amixer_commit_raw_write,
+        .setup                  = amixer_setup,
+        .get_scale              = amixer_get_y,
+};
+static int amixer_rsc_init(struct amixer *amixer,
+                           const struct amixer_desc *desc,
+                           struct amixer_mgr *mgr)
+{
+        int err;
+        err = rsc_init(&amixer->rsc, amixer->idx[0],
+                        AMIXER, desc->msr, mgr->mgr.hw);
+        if (err)
+                return err;
+        /* Set amixer specific operations */
+        amixer->rsc.ops = &amixer_basic_rsc_ops;
+        amixer->ops = &amixer_ops;
+        amixer->input = NULL;
+        amixer->sum = NULL;
+        amixer_setup(amixer, NULL, 0, NULL);
+        return 0;
+}
+static int amixer_rsc_uninit(struct amixer *amixer)
+{
+        amixer_setup(amixer, NULL, 0, NULL);
+        rsc_uninit(&amixer->rsc);
+        amixer->ops = NULL;
+        amixer->input = NULL;
+        amixer->sum = NULL;
+        return 0;
+}
+static int get_amixer_rsc(struct amixer_mgr *mgr,
+                          const struct amixer_desc *desc,
+                          struct amixer **ramixer)
+{
+        int err, i;
+        unsigned int idx;
+        struct amixer *amixer;
+        unsigned long flags;
+        *ramixer = NULL;
+        /* Allocate mem for amixer resource */
+        amixer = kzalloc(sizeof(*amixer), GFP_KERNEL);
+        if (NULL == amixer) {
+                err = -ENOMEM;
+                return err;
+        }
+        /* Check whether there are sufficient
+         * amixer resources to meet request. */
+        spin_lock_irqsave(&mgr->mgr_lock, flags);
+        for (i = 0; i < desc->msr; i++) {
+                err = mgr_get_resource(&mgr->mgr, 1, &idx);
+                if (err)
+                        break;
+                amixer->idx[i] = idx;
+        }
+        spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+        if (err) {
+                printk(KERN_ERR "ctxfi: Can't meet AMIXER resource request!\n");
+                goto error;
+        }
+        err = amixer_rsc_init(amixer, desc, mgr);
+        if (err)
+                goto error;
+        *ramixer = amixer;
+        return 0;
+error:
+        spin_lock_irqsave(&mgr->mgr_lock, flags);
+        for (i--; i >= 0; i--)
+                mgr_put_resource(&mgr->mgr, 1, amixer->idx[i]);
+        spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+        kfree(amixer);
+        return err;
+}
+static int put_amixer_rsc(struct amixer_mgr *mgr, struct amixer *amixer)
+{
+        unsigned long flags;
+        int i;
+        spin_lock_irqsave(&mgr->mgr_lock, flags);
+        for (i = 0; i < amixer->rsc.msr; i++)
+                mgr_put_resource(&mgr->mgr, 1, amixer->idx[i]);
+        spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+        amixer_rsc_uninit(amixer);
+        kfree(amixer);
+        return 0;
+}
+int amixer_mgr_create(void *hw, struct amixer_mgr **ramixer_mgr)
+{
+        int err;
+        struct amixer_mgr *amixer_mgr;
+        *ramixer_mgr = NULL;
+        amixer_mgr = kzalloc(sizeof(*amixer_mgr), GFP_KERNEL);
+        if (NULL == amixer_mgr)
+                return -ENOMEM;
+        err = rsc_mgr_init(&amixer_mgr->mgr, AMIXER, AMIXER_RESOURCE_NUM, hw);
+        if (err)
+                goto error;
+        spin_lock_init(&amixer_mgr->mgr_lock);
+        amixer_mgr->get_amixer = get_amixer_rsc;
+        amixer_mgr->put_amixer = put_amixer_rsc;
+        *ramixer_mgr = amixer_mgr;
+        return 0;
+error:
+        kfree(amixer_mgr);
+        return err;
+}
+int amixer_mgr_destroy(struct amixer_mgr *amixer_mgr)
+{
+        rsc_mgr_uninit(&amixer_mgr->mgr);
+        kfree(amixer_mgr);
+        return 0;
+}
+/* SUM resource management */
+static int sum_master(struct rsc *rsc)
+{
+        rsc->conj = 0;
+        return rsc->idx = container_of(rsc, struct sum, rsc)->idx[0];
+}
+static int sum_next_conj(struct rsc *rsc)
+{
+        rsc->conj++;
+        return container_of(rsc, struct sum, rsc)->idx[rsc->conj];
+}
+static int sum_index(const struct rsc *rsc)
+{
+        return container_of(rsc, struct sum, rsc)->idx[rsc->conj];
+}
+static int sum_output_slot(const struct rsc *rsc)
+{
+        return (sum_index(rsc) << 4) + 0xc;
+}
+static struct rsc_ops sum_basic_rsc_ops = {
+        .master         = sum_master,
+        .next_conj      = sum_next_conj,
+        .index          = sum_index,
+        .output_slot    = sum_output_slot,
+};
+static int sum_rsc_init(struct sum *sum,
+                        const struct sum_desc *desc,
+                        struct sum_mgr *mgr)
+{
+        int err;
+        err = rsc_init(&sum->rsc, sum->idx[0], SUM, desc->msr, mgr->mgr.hw);
+        if (err)
+                return err;
+        sum->rsc.ops = &sum_basic_rsc_ops;
+        return 0;
+}
+static int sum_rsc_uninit(struct sum *sum)
+{
+        rsc_uninit(&sum->rsc);
+        return 0;
+}
+static int get_sum_rsc(struct sum_mgr *mgr,
+                       const struct sum_desc *desc,
+                       struct sum **rsum)
+{
+        int err, i;
+        unsigned int idx;
+        struct sum *sum;
+        unsigned long flags;
+        *rsum = NULL;
+        /* Allocate mem for sum resource */
+        sum = kzalloc(sizeof(*sum), GFP_KERNEL);
+        if (NULL == sum) {
+                err = -ENOMEM;
+                return err;
+        }
+        /* Check whether there are sufficient sum resources to meet request. */
+        spin_lock_irqsave(&mgr->mgr_lock, flags);
+        for (i = 0; i < desc->msr; i++) {
+                err = mgr_get_resource(&mgr->mgr, 1, &idx);
+                if (err)
+                        break;
+                sum->idx[i] = idx;
+        }
+        spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+        if (err) {
+                printk(KERN_ERR "ctxfi: Can't meet SUM resource request!\n");
+                goto error;
+        }
+        err = sum_rsc_init(sum, desc, mgr);
+        if (err)
+                goto error;
+        *rsum = sum;
+        return 0;
+error:
+        spin_lock_irqsave(&mgr->mgr_lock, flags);
+        for (i--; i >= 0; i--)
+                mgr_put_resource(&mgr->mgr, 1, sum->idx[i]);
+        spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+        kfree(sum);
+        return err;
+}
+static int put_sum_rsc(struct sum_mgr *mgr, struct sum *sum)
+{
+        unsigned long flags;
+        int i;
+        spin_lock_irqsave(&mgr->mgr_lock, flags);
+        for (i = 0; i < sum->rsc.msr; i++)
+                mgr_put_resource(&mgr->mgr, 1, sum->idx[i]);
+        spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+        sum_rsc_uninit(sum);
+        kfree(sum);
+        return 0;
+}
+int sum_mgr_create(void *hw, struct sum_mgr **rsum_mgr)
+{
+        int err;
+        struct sum_mgr *sum_mgr;
+        *rsum_mgr = NULL;
+        sum_mgr = kzalloc(sizeof(*sum_mgr), GFP_KERNEL);
+        if (NULL == sum_mgr)
+                return -ENOMEM;
+        err = rsc_mgr_init(&sum_mgr->mgr, SUM, SUM_RESOURCE_NUM, hw);
+        if (err)
+                goto error;
+        spin_lock_init(&sum_mgr->mgr_lock);
+        sum_mgr->get_sum = get_sum_rsc;
+        sum_mgr->put_sum = put_sum_rsc;
+        *rsum_mgr = sum_mgr;
+        return 0;
+error:
+        kfree(sum_mgr);
+        return err;
+}
+int sum_mgr_destroy(struct sum_mgr *sum_mgr)
+{
+        rsc_mgr_uninit(&sum_mgr->mgr);
+        kfree(sum_mgr);
+        return 0;
+}
diff --git a/sound/pci/ctxfi/ctamixer.h b/sound/pci/ctxfi/ctamixer.h
new file mode 100644
index 000000000000..cc49e5ab4750
--- /dev/null
+++ b/sound/pci/ctxfi/ctamixer.h
@@ -0,0 +1,96 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File        ctamixer.h
+ *
+ * @Brief
+ * This file contains the definition of the Audio Mixer
+ * resource management object.
+ *
+ * @Author      Liu Chun
+ * @Date        May 21 2008
+ *
+ */
+#ifndef CTAMIXER_H
+#define CTAMIXER_H
+#include "ctresource.h"
+#include <linux/spinlock.h>
+/* Define the descriptor of a summation node resource */
+struct sum {
+        struct rsc rsc;         /* Basic resource info */
+        unsigned char idx[8];
+};
+/* Define sum resource request description info */
+struct sum_desc {
+        unsigned int msr;
+};
+struct sum_mgr {
+        struct rsc_mgr mgr;     /* Basic resource manager info */
+        spinlock_t mgr_lock;
+         /* request one sum resource */
+        int (*get_sum)(struct sum_mgr *mgr,
+                        const struct sum_desc *desc, struct sum **rsum);
+        /* return one sum resource */
+        int (*put_sum)(struct sum_mgr *mgr, struct sum *sum);
+};
+/* Constructor and destructor of daio resource manager */
+int sum_mgr_create(void *hw, struct sum_mgr **rsum_mgr);
+int sum_mgr_destroy(struct sum_mgr *sum_mgr);
+/* Define the descriptor of a amixer resource */
+struct amixer_rsc_ops;
+struct amixer {
+        struct rsc rsc;         /* Basic resource info */
+        unsigned char idx[8];
+        struct rsc *input;      /* pointer to a resource acting as source */
+        struct sum *sum;        /* Put amixer output to this summation node */
+        struct amixer_rsc_ops *ops;     /* AMixer specific operations */
+};
+struct amixer_rsc_ops {
+        int (*set_input)(struct amixer *amixer, struct rsc *rsc);
+        int (*set_scale)(struct amixer *amixer, unsigned int scale);
+        int (*set_invalid_squash)(struct amixer *amixer, unsigned int iv);
+        int (*set_sum)(struct amixer *amixer, struct sum *sum);
+        int (*commit_write)(struct amixer *amixer);
+        /* Only for interleaved recording */
+        int (*commit_raw_write)(struct amixer *amixer);
+        int (*setup)(struct amixer *amixer, struct rsc *input,
+                        unsigned int scale, struct sum *sum);
+        int (*get_scale)(struct amixer *amixer);
+};
+/* Define amixer resource request description info */
+struct amixer_desc {
+        unsigned int msr;
+};
+struct amixer_mgr {
+        struct rsc_mgr mgr;     /* Basic resource manager info */
+        spinlock_t mgr_lock;
+         /* request one amixer resource */
+        int (*get_amixer)(struct amixer_mgr *mgr,
+                          const struct amixer_desc *desc,
+                          struct amixer **ramixer);
+        /* return one amixer resource */
+        int (*put_amixer)(struct amixer_mgr *mgr, struct amixer *amixer);
+};
+/* Constructor and destructor of amixer resource manager */
+int amixer_mgr_create(void *hw, struct amixer_mgr **ramixer_mgr);
+int amixer_mgr_destroy(struct amixer_mgr *amixer_mgr);
+#endif /* CTAMIXER_H */
diff --git a/sound/pci/ctxfi/ctatc.c b/sound/pci/ctxfi/ctatc.c
new file mode 100644
index 000000000000..80fb2baed7a7
--- /dev/null
+++ b/sound/pci/ctxfi/ctatc.c
@@ -0,0 +1,1619 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File    ctatc.c
+ *
+ * @Brief
+ * This file contains the implementation of the device resource management
+ * object.
+ *
+ * @Author Liu Chun
+ * @Date Mar 28 2008
+ */
+#include "ctatc.h"
+#include "ctpcm.h"
+#include "ctmixer.h"
+#include "cthardware.h"
+#include "ctsrc.h"
+#include "ctamixer.h"
+#include "ctdaio.h"
+#include "cttimer.h"
+#include <linux/delay.h>
+#include <sound/pcm.h>
+#include <sound/control.h>
+#include <sound/asoundef.h>
+#define MONO_SUM_SCALE  0x19a8  /* 2^(-0.5) in 14-bit floating format */
+#define DAIONUM         7
+#define MAX_MULTI_CHN   8
+#define IEC958_DEFAULT_CON ((IEC958_AES0_NONAUDIO \
+                            | IEC958_AES0_CON_NOT_COPYRIGHT) \
+                            | ((IEC958_AES1_CON_MIXER \
+                            | IEC958_AES1_CON_ORIGINAL) << 8) \
+                            | (0x10 << 16) \
+                            | ((IEC958_AES3_CON_FS_48000) << 24))
+static struct snd_pci_quirk __devinitdata subsys_20k1_list[] = {
+        SND_PCI_QUIRK(PCI_VENDOR_ID_CREATIVE, 0x0022, "SB055x", CTSB055X),
+        SND_PCI_QUIRK(PCI_VENDOR_ID_CREATIVE, 0x002f, "SB055x", CTSB055X),
+        SND_PCI_QUIRK(PCI_VENDOR_ID_CREATIVE, 0x0029, "SB073x", CTSB073X),
+        SND_PCI_QUIRK(PCI_VENDOR_ID_CREATIVE, 0x0031, "SB073x", CTSB073X),
+        SND_PCI_QUIRK_MASK(PCI_VENDOR_ID_CREATIVE, 0xf000, 0x6000,
+                           "UAA", CTUAA),
+        SND_PCI_QUIRK_VENDOR(PCI_VENDOR_ID_CREATIVE,
+                             "Unknown", CT20K1_UNKNOWN),
+        { } /* terminator */
+};
+static struct snd_pci_quirk __devinitdata subsys_20k2_list[] = {
+        SND_PCI_QUIRK(PCI_VENDOR_ID_CREATIVE, PCI_SUBDEVICE_ID_CREATIVE_SB0760,
+                      "SB0760", CTSB0760),
+        SND_PCI_QUIRK(PCI_VENDOR_ID_CREATIVE, PCI_SUBDEVICE_ID_CREATIVE_SB08801,
+                      "SB0880", CTSB0880),
+        SND_PCI_QUIRK(PCI_VENDOR_ID_CREATIVE, PCI_SUBDEVICE_ID_CREATIVE_SB08802,
+                      "SB0880", CTSB0880),
+        SND_PCI_QUIRK(PCI_VENDOR_ID_CREATIVE, PCI_SUBDEVICE_ID_CREATIVE_SB08803,
+                      "SB0880", CTSB0880),
+        SND_PCI_QUIRK_MASK(PCI_VENDOR_ID_CREATIVE, 0xf000,
+                           PCI_SUBDEVICE_ID_CREATIVE_HENDRIX, "HENDRIX",
+                           CTHENDRIX),
+        { } /* terminator */
+};
+static const char *ct_subsys_name[NUM_CTCARDS] = {
+        [CTSB055X]      = "SB055x",
+        [CTSB073X]      = "SB073x",
+        [CTSB0760]      = "SB076x",
+        [CTUAA]         = "UAA",
+        [CT20K1_UNKNOWN] = "Unknown",
+        [CTHENDRIX]     = "Hendrix",
+        [CTSB0880]      = "SB0880",
+};
+static struct {
+        int (*create)(struct ct_atc *atc,
+                        enum CTALSADEVS device, const char *device_name);
+        int (*destroy)(void *alsa_dev);
+        const char *public_name;
+} alsa_dev_funcs[NUM_CTALSADEVS] = {
+        [FRONT]         = { .create = ct_alsa_pcm_create,
+                            .destroy = NULL,
+                            .public_name = "Front/WaveIn"},
+        [SURROUND]      = { .create = ct_alsa_pcm_create,
+                            .destroy = NULL,
+                            .public_name = "Surround"},
+        [CLFE]          = { .create = ct_alsa_pcm_create,
+                            .destroy = NULL,
+                            .public_name = "Center/LFE"},
+        [SIDE]          = { .create = ct_alsa_pcm_create,
+                            .destroy = NULL,
+                            .public_name = "Side"},
+        [IEC958]        = { .create = ct_alsa_pcm_create,
+                            .destroy = NULL,
+                            .public_name = "IEC958 Non-audio"},
+        [MIXER]         = { .create = ct_alsa_mix_create,
+                            .destroy = NULL,
+                            .public_name = "Mixer"}
+};
+typedef int (*create_t)(void *, void **);
+typedef int (*destroy_t)(void *);
+static struct {
+        int (*create)(void *hw, void **rmgr);
+        int (*destroy)(void *mgr);
+} rsc_mgr_funcs[NUM_RSCTYP] = {
+        [SRC]           = { .create     = (create_t)src_mgr_create,
+                            .destroy    = (destroy_t)src_mgr_destroy    },
+        [SRCIMP]        = { .create     = (create_t)srcimp_mgr_create,
+                            .destroy    = (destroy_t)srcimp_mgr_destroy },
+        [AMIXER]        = { .create     = (create_t)amixer_mgr_create,
+                            .destroy    = (destroy_t)amixer_mgr_destroy },
+        [SUM]           = { .create     = (create_t)sum_mgr_create,
+                            .destroy    = (destroy_t)sum_mgr_destroy    },
+        [DAIO]          = { .create     = (create_t)daio_mgr_create,
+                            .destroy    = (destroy_t)daio_mgr_destroy   }
+};
+static int
+atc_pcm_release_resources(struct ct_atc *atc, struct ct_atc_pcm *apcm);
+/* *
+ * Only mono and interleaved modes are supported now.
+ * Always allocates a contiguous channel block.
+ * */
+static int ct_map_audio_buffer(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+        struct snd_pcm_runtime *runtime;
+        struct ct_vm *vm;
+        if (NULL == apcm->substream)
+                return 0;
+        runtime = apcm->substream->runtime;
+        vm = atc->vm;
+        apcm->vm_block = vm->map(vm, apcm->substream, runtime->dma_bytes);
+        if (NULL == apcm->vm_block)
+                return -ENOENT;
+        return 0;
+}
+static void ct_unmap_audio_buffer(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+        struct ct_vm *vm;
+        if (NULL == apcm->vm_block)
+                return;
+        vm = atc->vm;
+        vm->unmap(vm, apcm->vm_block);
+        apcm->vm_block = NULL;
+}
+static unsigned long atc_get_ptp_phys(struct ct_atc *atc, int index)
+{
+        struct ct_vm *vm;
+        void *kvirt_addr;
+        unsigned long phys_addr;
+        vm = atc->vm;
+        kvirt_addr = vm->get_ptp_virt(vm, index);
+        if (kvirt_addr == NULL)
+                phys_addr = (~0UL);
+        else
+                phys_addr = virt_to_phys(kvirt_addr);
+        return phys_addr;
+}
+static unsigned int convert_format(snd_pcm_format_t snd_format)
+{
+        switch (snd_format) {
+        case SNDRV_PCM_FORMAT_U8:
+                return SRC_SF_U8;
+        case SNDRV_PCM_FORMAT_S16_LE:
+                return SRC_SF_S16;
+        case SNDRV_PCM_FORMAT_S24_3LE:
+                return SRC_SF_S24;
+        case SNDRV_PCM_FORMAT_S32_LE:
+                return SRC_SF_S32;
+        case SNDRV_PCM_FORMAT_FLOAT_LE:
+                return SRC_SF_F32;
+        default:
+                printk(KERN_ERR "ctxfi: not recognized snd format is %d \n",
+                        snd_format);
+                return SRC_SF_S16;
+        }
+}
+static unsigned int
+atc_get_pitch(unsigned int input_rate, unsigned int output_rate)
+{
+        unsigned int pitch;
+        int b;
+        /* get pitch and convert to fixed-point 8.24 format. */
+        pitch = (input_rate / output_rate) << 24;
+        input_rate %= output_rate;
+        input_rate /= 100;
+        output_rate /= 100;
+        for (b = 31; ((b >= 0) && !(input_rate >> b)); )
+                b--;
+        if (b >= 0) {
+                input_rate <<= (31 - b);
+                input_rate /= output_rate;
+                b = 24 - (31 - b);
+                if (b >= 0)
+                        input_rate <<= b;
+                else
+                        input_rate >>= -b;
+                pitch |= input_rate;
+        }
+        return pitch;
+}
+static int select_rom(unsigned int pitch)
+{
+        if ((pitch > 0x00428f5c) && (pitch < 0x01b851ec)) {
+                /* 0.26 <= pitch <= 1.72 */
+                return 1;
+        } else if ((0x01d66666 == pitch) || (0x01d66667 == pitch)) {
+                /* pitch == 1.8375 */
+                return 2;
+        } else if (0x02000000 == pitch) {
+                /* pitch == 2 */
+                return 3;
+        } else if ((pitch >= 0x0) && (pitch <= 0x08000000)) {
+                /* 0 <= pitch <= 8 */
+                return 0;
+        } else {
+                return -ENOENT;
+        }
+}
+static int atc_pcm_playback_prepare(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+        struct src_mgr *src_mgr = atc->rsc_mgrs[SRC];
+        struct amixer_mgr *amixer_mgr = atc->rsc_mgrs[AMIXER];
+        struct src_desc desc = {0};
+        struct amixer_desc mix_dsc = {0};
+        struct src *src;
+        struct amixer *amixer;
+        int err;
+        int n_amixer = apcm->substream->runtime->channels, i = 0;
+        int device = apcm->substream->pcm->device;
+        unsigned int pitch;
+        unsigned long flags;
+        if (NULL != apcm->src) {
+                /* Prepared pcm playback */
+                return 0;
+        }
+        /* first release old resources */
+        atc->pcm_release_resources(atc, apcm);
+        /* Get SRC resource */
+        desc.multi = apcm->substream->runtime->channels;
+        desc.msr = atc->msr;
+        desc.mode = MEMRD;
+        err = src_mgr->get_src(src_mgr, &desc, (struct src **)&apcm->src);
+        if (err)
+                goto error1;
+        pitch = atc_get_pitch(apcm->substream->runtime->rate,
+                                                (atc->rsr * atc->msr));
+        src = apcm->src;
+        src->ops->set_pitch(src, pitch);
+        src->ops->set_rom(src, select_rom(pitch));
+        src->ops->set_sf(src, convert_format(apcm->substream->runtime->format));
+        src->ops->set_pm(src, (src->ops->next_interleave(src) != NULL));
+        /* Get AMIXER resource */
+        n_amixer = (n_amixer < 2) ? 2 : n_amixer;
+        apcm->amixers = kzalloc(sizeof(void *)*n_amixer, GFP_KERNEL);
+        if (NULL == apcm->amixers) {
+                err = -ENOMEM;
+                goto error1;
+        }
+        mix_dsc.msr = atc->msr;
+        for (i = 0, apcm->n_amixer = 0; i < n_amixer; i++) {
+                err = amixer_mgr->get_amixer(amixer_mgr, &mix_dsc,
+                                        (struct amixer **)&apcm->amixers[i]);
+                if (err)
+                        goto error1;
+                apcm->n_amixer++;
+        }
+        /* Set up device virtual mem map */
+        err = ct_map_audio_buffer(atc, apcm);
+        if (err < 0)
+                goto error1;
+        /* Connect resources */
+        src = apcm->src;
+        for (i = 0; i < n_amixer; i++) {
+                amixer = apcm->amixers[i];
+                spin_lock_irqsave(&atc->atc_lock, flags);
+                amixer->ops->setup(amixer, &src->rsc,
+                                        INIT_VOL, atc->pcm[i+device*2]);
+                spin_unlock_irqrestore(&atc->atc_lock, flags);
+                src = src->ops->next_interleave(src);
+                if (NULL == src)
+                        src = apcm->src;
+        }
+        ct_timer_prepare(apcm->timer);
+        return 0;
+error1:
+        atc_pcm_release_resources(atc, apcm);
+        return err;
+}
+static int
+atc_pcm_release_resources(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+        struct src_mgr *src_mgr = atc->rsc_mgrs[SRC];
+        struct srcimp_mgr *srcimp_mgr = atc->rsc_mgrs[SRCIMP];
+        struct amixer_mgr *amixer_mgr = atc->rsc_mgrs[AMIXER];
+        struct sum_mgr *sum_mgr = atc->rsc_mgrs[SUM];
+        struct srcimp *srcimp;
+        int i;
+        if (NULL != apcm->srcimps) {
+                for (i = 0; i < apcm->n_srcimp; i++) {
+                        srcimp = apcm->srcimps[i];
+                        srcimp->ops->unmap(srcimp);
+                        srcimp_mgr->put_srcimp(srcimp_mgr, srcimp);
+                        apcm->srcimps[i] = NULL;
+                }
+                kfree(apcm->srcimps);
+                apcm->srcimps = NULL;
+        }
+        if (NULL != apcm->srccs) {
+                for (i = 0; i < apcm->n_srcc; i++) {
+                        src_mgr->put_src(src_mgr, apcm->srccs[i]);
+                        apcm->srccs[i] = NULL;
+                }
+                kfree(apcm->srccs);
+                apcm->srccs = NULL;
+        }
+        if (NULL != apcm->amixers) {
+                for (i = 0; i < apcm->n_amixer; i++) {
+                        amixer_mgr->put_amixer(amixer_mgr, apcm->amixers[i]);
+                        apcm->amixers[i] = NULL;
+                }
+                kfree(apcm->amixers);
+                apcm->amixers = NULL;
+        }
+        if (NULL != apcm->mono) {
+                sum_mgr->put_sum(sum_mgr, apcm->mono);
+                apcm->mono = NULL;
+        }
+        if (NULL != apcm->src) {
+                src_mgr->put_src(src_mgr, apcm->src);
+                apcm->src = NULL;
+        }
+        if (NULL != apcm->vm_block) {
+                /* Undo device virtual mem map */
+                ct_unmap_audio_buffer(atc, apcm);
+                apcm->vm_block = NULL;
+        }
+        return 0;
+}
+static int atc_pcm_playback_start(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+        unsigned int max_cisz;
+        struct src *src = apcm->src;
+        if (apcm->started)
+                return 0;
+        apcm->started = 1;
+        max_cisz = src->multi * src->rsc.msr;
+        max_cisz = 0x80 * (max_cisz < 8 ? max_cisz : 8);
+        src->ops->set_sa(src, apcm->vm_block->addr);
+        src->ops->set_la(src, apcm->vm_block->addr + apcm->vm_block->size);
+        src->ops->set_ca(src, apcm->vm_block->addr + max_cisz);
+        src->ops->set_cisz(src, max_cisz);
+        src->ops->set_bm(src, 1);
+        src->ops->set_state(src, SRC_STATE_INIT);
+        src->ops->commit_write(src);
+        ct_timer_start(apcm->timer);
+        return 0;
+}
+static int atc_pcm_stop(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+        struct src *src;
+        int i;
+        ct_timer_stop(apcm->timer);
+        src = apcm->src;
+        src->ops->set_bm(src, 0);
+        src->ops->set_state(src, SRC_STATE_OFF);
+        src->ops->commit_write(src);
+        if (NULL != apcm->srccs) {
+                for (i = 0; i < apcm->n_srcc; i++) {
+                        src = apcm->srccs[i];
+                        src->ops->set_bm(src, 0);
+                        src->ops->set_state(src, SRC_STATE_OFF);
+                        src->ops->commit_write(src);
+                }
+        }
+        apcm->started = 0;
+        return 0;
+}
+static int
+atc_pcm_playback_position(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+        struct src *src = apcm->src;
+        u32 size, max_cisz;
+        int position;
+        if (!src)
+                return 0;
+        position = src->ops->get_ca(src);
+        size = apcm->vm_block->size;
+        max_cisz = src->multi * src->rsc.msr;
+        max_cisz = 128 * (max_cisz < 8 ? max_cisz : 8);
+        return (position + size - max_cisz - apcm->vm_block->addr) % size;
+}
+struct src_node_conf_t {
+        unsigned int pitch;
+        unsigned int msr:8;
+        unsigned int mix_msr:8;
+        unsigned int imp_msr:8;
+        unsigned int vo:1;
+};
+static void setup_src_node_conf(struct ct_atc *atc, struct ct_atc_pcm *apcm,
+                                struct src_node_conf_t *conf, int *n_srcc)
+{
+        unsigned int pitch;
+        /* get pitch and convert to fixed-point 8.24 format. */
+        pitch = atc_get_pitch((atc->rsr * atc->msr),
+                                apcm->substream->runtime->rate);
+        *n_srcc = 0;
+        if (1 == atc->msr) {
+                *n_srcc = apcm->substream->runtime->channels;
+                conf[0].pitch = pitch;
+                conf[0].mix_msr = conf[0].imp_msr = conf[0].msr = 1;
+                conf[0].vo = 1;
+        } else if (2 == atc->msr) {
+                if (0x8000000 < pitch) {
+                        /* Need two-stage SRCs, SRCIMPs and
+                         * AMIXERs for converting format */
+                        conf[0].pitch = (atc->msr << 24);
+                        conf[0].msr = conf[0].mix_msr = 1;
+                        conf[0].imp_msr = atc->msr;
+                        conf[0].vo = 0;
+                        conf[1].pitch = atc_get_pitch(atc->rsr,
+                                        apcm->substream->runtime->rate);
+                        conf[1].msr = conf[1].mix_msr = conf[1].imp_msr = 1;
+                        conf[1].vo = 1;
+                        *n_srcc = apcm->substream->runtime->channels * 2;
+                } else if (0x1000000 < pitch) {
+                        /* Need one-stage SRCs, SRCIMPs and
+                         * AMIXERs for converting format */
+                        conf[0].pitch = pitch;
+                        conf[0].msr = conf[0].mix_msr
+                                    = conf[0].imp_msr = atc->msr;
+                        conf[0].vo = 1;
+                        *n_srcc = apcm->substream->runtime->channels;
+                }
+        }
+}
+static int
+atc_pcm_capture_get_resources(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+        struct src_mgr *src_mgr = atc->rsc_mgrs[SRC];
+        struct srcimp_mgr *srcimp_mgr = atc->rsc_mgrs[SRCIMP];
+        struct amixer_mgr *amixer_mgr = atc->rsc_mgrs[AMIXER];
+        struct sum_mgr *sum_mgr = atc->rsc_mgrs[SUM];
+        struct src_desc src_dsc = {0};
+        struct src *src;
+        struct srcimp_desc srcimp_dsc = {0};
+        struct srcimp *srcimp;
+        struct amixer_desc mix_dsc = {0};
+        struct sum_desc sum_dsc = {0};
+        unsigned int pitch;
+        int multi, err, i;
+        int n_srcimp, n_amixer, n_srcc, n_sum;
+        struct src_node_conf_t src_node_conf[2] = {{0} };
+        /* first release old resources */
+        atc_pcm_release_resources(atc, apcm);
+        /* The numbers of converting SRCs and SRCIMPs should be determined
+         * by pitch value. */
+        multi = apcm->substream->runtime->channels;
+        /* get pitch and convert to fixed-point 8.24 format. */
+        pitch = atc_get_pitch((atc->rsr * atc->msr),
+                                apcm->substream->runtime->rate);
+        setup_src_node_conf(atc, apcm, src_node_conf, &n_srcc);
+        n_sum = (1 == multi) ? 1 : 0;
+        n_amixer = n_sum * 2 + n_srcc;
+        n_srcimp = n_srcc;
+        if ((multi > 1) && (0x8000000 >= pitch)) {
+                /* Need extra AMIXERs and SRCIMPs for special treatment
+                 * of interleaved recording of conjugate channels */
+                n_amixer += multi * atc->msr;
+                n_srcimp += multi * atc->msr;
+        } else {
+                n_srcimp += multi;
+        }
+        if (n_srcc) {
+                apcm->srccs = kzalloc(sizeof(void *)*n_srcc, GFP_KERNEL);
+                if (NULL == apcm->srccs)
+                        return -ENOMEM;
+        }
+        if (n_amixer) {
+                apcm->amixers = kzalloc(sizeof(void *)*n_amixer, GFP_KERNEL);
+                if (NULL == apcm->amixers) {
+                        err = -ENOMEM;
+                        goto error1;
+                }
+        }
+        apcm->srcimps = kzalloc(sizeof(void *)*n_srcimp, GFP_KERNEL);
+        if (NULL == apcm->srcimps) {
+                err = -ENOMEM;
+                goto error1;
+        }
+        /* Allocate SRCs for sample rate conversion if needed */
+        src_dsc.multi = 1;
+        src_dsc.mode = ARCRW;
+        for (i = 0, apcm->n_srcc = 0; i < n_srcc; i++) {
+                src_dsc.msr = src_node_conf[i/multi].msr;
+                err = src_mgr->get_src(src_mgr, &src_dsc,
+                                        (struct src **)&apcm->srccs[i]);
+                if (err)
+                        goto error1;
+                src = apcm->srccs[i];
+                pitch = src_node_conf[i/multi].pitch;
+                src->ops->set_pitch(src, pitch);
+                src->ops->set_rom(src, select_rom(pitch));
+                src->ops->set_vo(src, src_node_conf[i/multi].vo);
+                apcm->n_srcc++;
+        }
+        /* Allocate AMIXERs for routing SRCs of conversion if needed */
+        for (i = 0, apcm->n_amixer = 0; i < n_amixer; i++) {
+                if (i < (n_sum*2))
+                        mix_dsc.msr = atc->msr;
+                else if (i < (n_sum*2+n_srcc))
+                        mix_dsc.msr = src_node_conf[(i-n_sum*2)/multi].mix_msr;
+                else
+                        mix_dsc.msr = 1;
+                err = amixer_mgr->get_amixer(amixer_mgr, &mix_dsc,
+                                        (struct amixer **)&apcm->amixers[i]);
+                if (err)
+                        goto error1;
+                apcm->n_amixer++;
+        }
+        /* Allocate a SUM resource to mix all input channels together */
+        sum_dsc.msr = atc->msr;
+        err = sum_mgr->get_sum(sum_mgr, &sum_dsc, (struct sum **)&apcm->mono);
+        if (err)
+                goto error1;
+        pitch = atc_get_pitch((atc->rsr * atc->msr),
+                                apcm->substream->runtime->rate);
+        /* Allocate SRCIMP resources */
+        for (i = 0, apcm->n_srcimp = 0; i < n_srcimp; i++) {
+                if (i < (n_srcc))
+                        srcimp_dsc.msr = src_node_conf[i/multi].imp_msr;
+                else if (1 == multi)
+                        srcimp_dsc.msr = (pitch <= 0x8000000) ? atc->msr : 1;
+                else
+                        srcimp_dsc.msr = 1;
+                err = srcimp_mgr->get_srcimp(srcimp_mgr, &srcimp_dsc, &srcimp);
+                if (err)
+                        goto error1;
+                apcm->srcimps[i] = srcimp;
+                apcm->n_srcimp++;
+        }
+        /* Allocate a SRC for writing data to host memory */
+        src_dsc.multi = apcm->substream->runtime->channels;
+        src_dsc.msr = 1;
+        src_dsc.mode = MEMWR;
+        err = src_mgr->get_src(src_mgr, &src_dsc, (struct src **)&apcm->src);
+        if (err)
+                goto error1;
+        src = apcm->src;
+        src->ops->set_pitch(src, pitch);
+        /* Set up device virtual mem map */
+        err = ct_map_audio_buffer(atc, apcm);
+        if (err < 0)
+                goto error1;
+        return 0;
+error1:
+        atc_pcm_release_resources(atc, apcm);
+        return err;
+}
+static int atc_pcm_capture_prepare(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+        struct src *src;
+        struct amixer *amixer;
+        struct srcimp *srcimp;
+        struct ct_mixer *mixer = atc->mixer;
+        struct sum *mono;
+        struct rsc *out_ports[8] = {NULL};
+        int err, i, j, n_sum, multi;
+        unsigned int pitch;
+        int mix_base = 0, imp_base = 0;
+        if (NULL != apcm->src) {
+                /* Prepared pcm capture */
+                return 0;
+        }
+        /* Get needed resources. */
+        err = atc_pcm_capture_get_resources(atc, apcm);
+        if (err)
+                return err;
+        /* Connect resources */
+        mixer->get_output_ports(mixer, MIX_PCMO_FRONT,
+                                &out_ports[0], &out_ports[1]);
+        multi = apcm->substream->runtime->channels;
+        if (1 == multi) {
+                mono = apcm->mono;
+                for (i = 0; i < 2; i++) {
+                        amixer = apcm->amixers[i];
+                        amixer->ops->setup(amixer, out_ports[i],
+                                                MONO_SUM_SCALE, mono);
+                }
+                out_ports[0] = &mono->rsc;
+                n_sum = 1;
+                mix_base = n_sum * 2;
+        }
+        for (i = 0; i < apcm->n_srcc; i++) {
+                src = apcm->srccs[i];
+                srcimp = apcm->srcimps[imp_base+i];
+                amixer = apcm->amixers[mix_base+i];
+                srcimp->ops->map(srcimp, src, out_ports[i%multi]);
+                amixer->ops->setup(amixer, &src->rsc, INIT_VOL, NULL);
+                out_ports[i%multi] = &amixer->rsc;
+        }
+        pitch = atc_get_pitch((atc->rsr * atc->msr),
+                                apcm->substream->runtime->rate);
+        if ((multi > 1) && (pitch <= 0x8000000)) {
+                /* Special connection for interleaved
+                 * recording with conjugate channels */
+                for (i = 0; i < multi; i++) {
+                        out_ports[i]->ops->master(out_ports[i]);
+                        for (j = 0; j < atc->msr; j++) {
+                                amixer = apcm->amixers[apcm->n_srcc+j*multi+i];
+                                amixer->ops->set_input(amixer, out_ports[i]);
+                                amixer->ops->set_scale(amixer, INIT_VOL);
+                                amixer->ops->set_sum(amixer, NULL);
+                                amixer->ops->commit_raw_write(amixer);
+                                out_ports[i]->ops->next_conj(out_ports[i]);
+                                srcimp = apcm->srcimps[apcm->n_srcc+j*multi+i];
+                                srcimp->ops->map(srcimp, apcm->src,
+                                                        &amixer->rsc);
+                        }
+                }
+        } else {
+                for (i = 0; i < multi; i++) {
+                        srcimp = apcm->srcimps[apcm->n_srcc+i];
+                        srcimp->ops->map(srcimp, apcm->src, out_ports[i]);
+                }
+        }
+        ct_timer_prepare(apcm->timer);
+        return 0;
+}
+static int atc_pcm_capture_start(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+        struct src *src;
+        struct src_mgr *src_mgr = atc->rsc_mgrs[SRC];
+        int i, multi;
+        if (apcm->started)
+                return 0;
+        apcm->started = 1;
+        multi = apcm->substream->runtime->channels;
+        /* Set up converting SRCs */
+        for (i = 0; i < apcm->n_srcc; i++) {
+                src = apcm->srccs[i];
+                src->ops->set_pm(src, ((i%multi) != (multi-1)));
+                src_mgr->src_disable(src_mgr, src);
+        }
+        /*  Set up recording SRC */
+        src = apcm->src;
+        src->ops->set_sf(src, convert_format(apcm->substream->runtime->format));
+        src->ops->set_sa(src, apcm->vm_block->addr);
+        src->ops->set_la(src, apcm->vm_block->addr + apcm->vm_block->size);
+        src->ops->set_ca(src, apcm->vm_block->addr);
+        src_mgr->src_disable(src_mgr, src);
+        /* Disable relevant SRCs firstly */
+        src_mgr->commit_write(src_mgr);
+        /* Enable SRCs respectively */
+        for (i = 0; i < apcm->n_srcc; i++) {
+                src = apcm->srccs[i];
+                src->ops->set_state(src, SRC_STATE_RUN);
+                src->ops->commit_write(src);
+                src_mgr->src_enable_s(src_mgr, src);
+        }
+        src = apcm->src;
+        src->ops->set_bm(src, 1);
+        src->ops->set_state(src, SRC_STATE_RUN);
+        src->ops->commit_write(src);
+        src_mgr->src_enable_s(src_mgr, src);
+        /* Enable relevant SRCs synchronously */
+        src_mgr->commit_write(src_mgr);
+        ct_timer_start(apcm->timer);
+        return 0;
+}
+static int
+atc_pcm_capture_position(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+        struct src *src = apcm->src;
+        if (!src)
+                return 0;
+        return src->ops->get_ca(src) - apcm->vm_block->addr;
+}
+static int spdif_passthru_playback_get_resources(struct ct_atc *atc,
+                                                 struct ct_atc_pcm *apcm)
+{
+        struct src_mgr *src_mgr = atc->rsc_mgrs[SRC];
+        struct amixer_mgr *amixer_mgr = atc->rsc_mgrs[AMIXER];
+        struct src_desc desc = {0};
+        struct amixer_desc mix_dsc = {0};
+        struct src *src;
+        int err;
+        int n_amixer = apcm->substream->runtime->channels, i;
+        unsigned int pitch, rsr = atc->pll_rate;
+        /* first release old resources */
+        atc_pcm_release_resources(atc, apcm);
+        /* Get SRC resource */
+        desc.multi = apcm->substream->runtime->channels;
+        desc.msr = 1;
+        while (apcm->substream->runtime->rate > (rsr * desc.msr))
+                desc.msr <<= 1;
+        desc.mode = MEMRD;
+        err = src_mgr->get_src(src_mgr, &desc, (struct src **)&apcm->src);
+        if (err)
+                goto error1;
+        pitch = atc_get_pitch(apcm->substream->runtime->rate, (rsr * desc.msr));
+        src = apcm->src;
+        src->ops->set_pitch(src, pitch);
+        src->ops->set_rom(src, select_rom(pitch));
+        src->ops->set_sf(src, convert_format(apcm->substream->runtime->format));
+        src->ops->set_pm(src, (src->ops->next_interleave(src) != NULL));
+        src->ops->set_bp(src, 1);
+        /* Get AMIXER resource */
+        n_amixer = (n_amixer < 2) ? 2 : n_amixer;
+        apcm->amixers = kzalloc(sizeof(void *)*n_amixer, GFP_KERNEL);
+        if (NULL == apcm->amixers) {
+                err = -ENOMEM;
+                goto error1;
+        }
+        mix_dsc.msr = desc.msr;
+        for (i = 0, apcm->n_amixer = 0; i < n_amixer; i++) {
+                err = amixer_mgr->get_amixer(amixer_mgr, &mix_dsc,
+                                        (struct amixer **)&apcm->amixers[i]);
+                if (err)
+                        goto error1;
+                apcm->n_amixer++;
+        }
+        /* Set up device virtual mem map */
+        err = ct_map_audio_buffer(atc, apcm);
+        if (err < 0)
+                goto error1;
+        return 0;
+error1:
+        atc_pcm_release_resources(atc, apcm);
+        return err;
+}
+static int atc_pll_init(struct ct_atc *atc, int rate)
+{
+        struct hw *hw = atc->hw;
+        int err;
+        err = hw->pll_init(hw, rate);
+        atc->pll_rate = err ? 0 : rate;
+        return err;
+}
+static int
+spdif_passthru_playback_setup(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+        struct dao *dao = container_of(atc->daios[SPDIFOO], struct dao, daio);
+        unsigned long flags;
+        unsigned int rate = apcm->substream->runtime->rate;
+        unsigned int status;
+        int err;
+        unsigned char iec958_con_fs;
+        switch (rate) {
+        case 48000:
+                iec958_con_fs = IEC958_AES3_CON_FS_48000;
+                break;
+        case 44100:
+                iec958_con_fs = IEC958_AES3_CON_FS_44100;
+                break;
+        case 32000:
+                iec958_con_fs = IEC958_AES3_CON_FS_32000;
+                break;
+        default:
+                return -ENOENT;
+        }
+        spin_lock_irqsave(&atc->atc_lock, flags);
+        dao->ops->get_spos(dao, &status);
+        if (((status >> 24) & IEC958_AES3_CON_FS) != iec958_con_fs) {
+                status &= ((~IEC958_AES3_CON_FS) << 24);
+                status |= (iec958_con_fs << 24);
+                dao->ops->set_spos(dao, status);
+                dao->ops->commit_write(dao);
+        }
+        if ((rate != atc->pll_rate) && (32000 != rate))
+                err = atc_pll_init(atc, rate);
+        spin_unlock_irqrestore(&atc->atc_lock, flags);
+        return err;
+}
+static int
+spdif_passthru_playback_prepare(struct ct_atc *atc, struct ct_atc_pcm *apcm)
+{
+        struct src *src;
+        struct amixer *amixer;
+        struct dao *dao;
+        int err;
+        int i;
+        unsigned long flags;
+        if (NULL != apcm->src)
+                return 0;
+        /* Configure SPDIFOO and PLL to passthrough mode;
+         * determine pll_rate. */
+        err = spdif_passthru_playback_setup(atc, apcm);
+        if (err)
+                return err;
+        /* Get needed resources. */
+        err = spdif_passthru_playback_get_resources(atc, apcm);
+        if (err)
+                return err;
+        /* Connect resources */
+        src = apcm->src;
+        for (i = 0; i < apcm->n_amixer; i++) {
+                amixer = apcm->amixers[i];
+                amixer->ops->setup(amixer, &src->rsc, INIT_VOL, NULL);
+                src = src->ops->next_interleave(src);
+                if (NULL == src)
+                        src = apcm->src;
+        }
+        /* Connect to SPDIFOO */
+        spin_lock_irqsave(&atc->atc_lock, flags);
+        dao = container_of(atc->daios[SPDIFOO], struct dao, daio);
+        amixer = apcm->amixers[0];
+        dao->ops->set_left_input(dao, &amixer->rsc);
+        amixer = apcm->amixers[1];
+        dao->ops->set_right_input(dao, &amixer->rsc);
+        spin_unlock_irqrestore(&atc->atc_lock, flags);
+        ct_timer_prepare(apcm->timer);
+        return 0;
+}
+static int atc_select_line_in(struct ct_atc *atc)
+{
+        struct hw *hw = atc->hw;
+        struct ct_mixer *mixer = atc->mixer;
+        struct src *src;
+        if (hw->is_adc_source_selected(hw, ADC_LINEIN))
+                return 0;
+        mixer->set_input_left(mixer, MIX_MIC_IN, NULL);
+        mixer->set_input_right(mixer, MIX_MIC_IN, NULL);
+        hw->select_adc_source(hw, ADC_LINEIN);
+        src = atc->srcs[2];
+        mixer->set_input_left(mixer, MIX_LINE_IN, &src->rsc);
+        src = atc->srcs[3];
+        mixer->set_input_right(mixer, MIX_LINE_IN, &src->rsc);
+        return 0;
+}
+static int atc_select_mic_in(struct ct_atc *atc)
+{
+        struct hw *hw = atc->hw;
+        struct ct_mixer *mixer = atc->mixer;
+        struct src *src;
+        if (hw->is_adc_source_selected(hw, ADC_MICIN))
+                return 0;
+        mixer->set_input_left(mixer, MIX_LINE_IN, NULL);
+        mixer->set_input_right(mixer, MIX_LINE_IN, NULL);
+        hw->select_adc_source(hw, ADC_MICIN);
+        src = atc->srcs[2];
+        mixer->set_input_left(mixer, MIX_MIC_IN, &src->rsc);
+        src = atc->srcs[3];
+        mixer->set_input_right(mixer, MIX_MIC_IN, &src->rsc);
+        return 0;
+}
+static int atc_have_digit_io_switch(struct ct_atc *atc)
+{
+        struct hw *hw = atc->hw;
+        return hw->have_digit_io_switch(hw);
+}
+static int atc_select_digit_io(struct ct_atc *atc)
+{
+        struct hw *hw = atc->hw;
+        if (hw->is_adc_source_selected(hw, ADC_NONE))
+                return 0;
+        hw->select_adc_source(hw, ADC_NONE);
+        return 0;
+}
+static int atc_daio_unmute(struct ct_atc *atc, unsigned char state, int type)
+{
+        struct daio_mgr *daio_mgr = atc->rsc_mgrs[DAIO];
+        if (state)
+                daio_mgr->daio_enable(daio_mgr, atc->daios[type]);
+        else
+                daio_mgr->daio_disable(daio_mgr, atc->daios[type]);
+        daio_mgr->commit_write(daio_mgr);
+        return 0;
+}
+static int
+atc_dao_get_status(struct ct_atc *atc, unsigned int *status, int type)
+{
+        struct dao *dao = container_of(atc->daios[type], struct dao, daio);
+        return dao->ops->get_spos(dao, status);
+}
+static int
+atc_dao_set_status(struct ct_atc *atc, unsigned int status, int type)
+{
+        struct dao *dao = container_of(atc->daios[type], struct dao, daio);
+        dao->ops->set_spos(dao, status);
+        dao->ops->commit_write(dao);
+        return 0;
+}
+static int atc_line_front_unmute(struct ct_atc *atc, unsigned char state)
+{
+        return atc_daio_unmute(atc, state, LINEO1);
+}
+static int atc_line_surround_unmute(struct ct_atc *atc, unsigned char state)
+{
+        return atc_daio_unmute(atc, state, LINEO4);
+}
+static int atc_line_clfe_unmute(struct ct_atc *atc, unsigned char state)
+{
+        return atc_daio_unmute(atc, state, LINEO3);
+}
+static int atc_line_rear_unmute(struct ct_atc *atc, unsigned char state)
+{
+        return atc_daio_unmute(atc, state, LINEO2);
+}
+static int atc_line_in_unmute(struct ct_atc *atc, unsigned char state)
+{
+        return atc_daio_unmute(atc, state, LINEIM);
+}
+static int atc_spdif_out_unmute(struct ct_atc *atc, unsigned char state)
+{
+        return atc_daio_unmute(atc, state, SPDIFOO);
+}
+static int atc_spdif_in_unmute(struct ct_atc *atc, unsigned char state)
+{
+        return atc_daio_unmute(atc, state, SPDIFIO);
+}
+static int atc_spdif_out_get_status(struct ct_atc *atc, unsigned int *status)
+{
+        return atc_dao_get_status(atc, status, SPDIFOO);
+}
+static int atc_spdif_out_set_status(struct ct_atc *atc, unsigned int status)
+{
+        return atc_dao_set_status(atc, status, SPDIFOO);
+}
+static int atc_spdif_out_passthru(struct ct_atc *atc, unsigned char state)
+{
+        unsigned long flags;
+        struct dao_desc da_dsc = {0};
+        struct dao *dao;
+        int err;
+        struct ct_mixer *mixer = atc->mixer;
+        struct rsc *rscs[2] = {NULL};
+        unsigned int spos = 0;
+        spin_lock_irqsave(&atc->atc_lock, flags);
+        dao = container_of(atc->daios[SPDIFOO], struct dao, daio);
+        da_dsc.msr = state ? 1 : atc->msr;
+        da_dsc.passthru = state ? 1 : 0;
+        err = dao->ops->reinit(dao, &da_dsc);
+        if (state) {
+                spos = IEC958_DEFAULT_CON;
+        } else {
+                mixer->get_output_ports(mixer, MIX_SPDIF_OUT,
+                                        &rscs[0], &rscs[1]);
+                dao->ops->set_left_input(dao, rscs[0]);
+                dao->ops->set_right_input(dao, rscs[1]);
+                /* Restore PLL to atc->rsr if needed. */
+                if (atc->pll_rate != atc->rsr)
+                        err = atc_pll_init(atc, atc->rsr);
+        }
+        dao->ops->set_spos(dao, spos);
+        dao->ops->commit_write(dao);
+        spin_unlock_irqrestore(&atc->atc_lock, flags);
+        return err;
+}
+static int ct_atc_destroy(struct ct_atc *atc)
+{
+        struct daio_mgr *daio_mgr;
+        struct dao *dao;
+        struct dai *dai;
+        struct daio *daio;
+        struct sum_mgr *sum_mgr;
+        struct src_mgr *src_mgr;
+        struct srcimp_mgr *srcimp_mgr;
+        struct srcimp *srcimp;
+        struct ct_mixer *mixer;
+        int i = 0;
+        if (NULL == atc)
+                return 0;
+        if (atc->timer) {
+                ct_timer_free(atc->timer);
+                atc->timer = NULL;
+        }
+        /* Stop hardware and disable all interrupts */
+        if (NULL != atc->hw)
+                ((struct hw *)atc->hw)->card_stop(atc->hw);
+        /* Destroy internal mixer objects */
+        if (NULL != atc->mixer) {
+                mixer = atc->mixer;
+                mixer->set_input_left(mixer, MIX_LINE_IN, NULL);
+                mixer->set_input_right(mixer, MIX_LINE_IN, NULL);
+                mixer->set_input_left(mixer, MIX_MIC_IN, NULL);
+                mixer->set_input_right(mixer, MIX_MIC_IN, NULL);
+                mixer->set_input_left(mixer, MIX_SPDIF_IN, NULL);
+                mixer->set_input_right(mixer, MIX_SPDIF_IN, NULL);
+                ct_mixer_destroy(atc->mixer);
+        }
+        if (NULL != atc->daios) {
+                daio_mgr = (struct daio_mgr *)atc->rsc_mgrs[DAIO];
+                for (i = 0; i < atc->n_daio; i++) {
+                        daio = atc->daios[i];
+                        if (daio->type < LINEIM) {
+                                dao = container_of(daio, struct dao, daio);
+                                dao->ops->clear_left_input(dao);
+                                dao->ops->clear_right_input(dao);
+                        } else {
+                                dai = container_of(daio, struct dai, daio);
+                                /* some thing to do for dai ... */
+                        }
+                        daio_mgr->put_daio(daio_mgr, daio);
+                }
+                kfree(atc->daios);
+        }
+        if (NULL != atc->pcm) {
+                sum_mgr = atc->rsc_mgrs[SUM];
+                for (i = 0; i < atc->n_pcm; i++)
+                        sum_mgr->put_sum(sum_mgr, atc->pcm[i]);
+                kfree(atc->pcm);
+        }
+        if (NULL != atc->srcs) {
+                src_mgr = atc->rsc_mgrs[SRC];
+                for (i = 0; i < atc->n_src; i++)
+                        src_mgr->put_src(src_mgr, atc->srcs[i]);
+                kfree(atc->srcs);
+        }
+        if (NULL != atc->srcimps) {
+                srcimp_mgr = atc->rsc_mgrs[SRCIMP];
+                for (i = 0; i < atc->n_srcimp; i++) {
+                        srcimp = atc->srcimps[i];
+                        srcimp->ops->unmap(srcimp);
+                        srcimp_mgr->put_srcimp(srcimp_mgr, atc->srcimps[i]);
+                }
+                kfree(atc->srcimps);
+        }
+        for (i = 0; i < NUM_RSCTYP; i++) {
+                if ((NULL != rsc_mgr_funcs[i].destroy) &&
+                    (NULL != atc->rsc_mgrs[i]))
+                        rsc_mgr_funcs[i].destroy(atc->rsc_mgrs[i]);
+        }
+        if (NULL != atc->hw)
+                destroy_hw_obj((struct hw *)atc->hw);
+        /* Destroy device virtual memory manager object */
+        if (NULL != atc->vm) {
+                ct_vm_destroy(atc->vm);
+                atc->vm = NULL;
+        }
+        kfree(atc);
+        return 0;
+}
+static int atc_dev_free(struct snd_device *dev)
+{
+        struct ct_atc *atc = dev->device_data;
+        return ct_atc_destroy(atc);
+}
+static int __devinit atc_identify_card(struct ct_atc *atc)
+{
+        const struct snd_pci_quirk *p;
+        const struct snd_pci_quirk *list;
+        switch (atc->chip_type) {
+        case ATC20K1:
+                atc->chip_name = "20K1";
+                list = subsys_20k1_list;
+                break;
+        case ATC20K2:
+                atc->chip_name = "20K2";
+                list = subsys_20k2_list;
+                break;
+        default:
+                return -ENOENT;
+        }
+        p = snd_pci_quirk_lookup(atc->pci, list);
+        if (!p)
+                return -ENOENT;
+        atc->model = p->value;
+        atc->model_name = ct_subsys_name[atc->model];
+        snd_printd("ctxfi: chip %s model %s (%04x:%04x) is found\n",
+                   atc->chip_name, atc->model_name,
+                   atc->pci->subsystem_vendor,
+                   atc->pci->subsystem_device);
+        return 0;
+}
+int __devinit ct_atc_create_alsa_devs(struct ct_atc *atc)
+{
+        enum CTALSADEVS i;
+        int err;
+        alsa_dev_funcs[MIXER].public_name = atc->chip_name;
+        for (i = 0; i < NUM_CTALSADEVS; i++) {
+                if (NULL == alsa_dev_funcs[i].create)
+                        continue;
+                err = alsa_dev_funcs[i].create(atc, i,
+                                alsa_dev_funcs[i].public_name);
+                if (err) {
+                        printk(KERN_ERR "ctxfi: "
+                               "Creating alsa device %d failed!\n", i);
+                        return err;
+                }
+        }
+        return 0;
+}
+static int __devinit atc_create_hw_devs(struct ct_atc *atc)
+{
+        struct hw *hw;
+        struct card_conf info = {0};
+        int i, err;
+        err = create_hw_obj(atc->pci, atc->chip_type, atc->model, &hw);
+        if (err) {
+                printk(KERN_ERR "Failed to create hw obj!!!\n");
+                return err;
+        }
+        atc->hw = hw;
+        /* Initialize card hardware. */
+        info.rsr = atc->rsr;
+        info.msr = atc->msr;
+        info.vm_pgt_phys = atc_get_ptp_phys(atc, 0);
+        err = hw->card_init(hw, &info);
+        if (err < 0)
+                return err;
+        for (i = 0; i < NUM_RSCTYP; i++) {
+                if (NULL == rsc_mgr_funcs[i].create)
+                        continue;
+                err = rsc_mgr_funcs[i].create(atc->hw, &atc->rsc_mgrs[i]);
+                if (err) {
+                        printk(KERN_ERR "ctxfi: "
+                               "Failed to create rsc_mgr %d!!!\n", i);
+                        return err;
+                }
+        }
+        return 0;
+}
+static int __devinit atc_get_resources(struct ct_atc *atc)
+{
+        struct daio_desc da_desc = {0};
+        struct daio_mgr *daio_mgr;
+        struct src_desc src_dsc = {0};
+        struct src_mgr *src_mgr;
+        struct srcimp_desc srcimp_dsc = {0};
+        struct srcimp_mgr *srcimp_mgr;
+        struct sum_desc sum_dsc = {0};
+        struct sum_mgr *sum_mgr;
+        int err, i;
+        atc->daios = kzalloc(sizeof(void *)*(DAIONUM), GFP_KERNEL);
+        if (NULL == atc->daios)
+                return -ENOMEM;
+        atc->srcs = kzalloc(sizeof(void *)*(2*2), GFP_KERNEL);
+        if (NULL == atc->srcs)
+                return -ENOMEM;
+        atc->srcimps = kzalloc(sizeof(void *)*(2*2), GFP_KERNEL);
+        if (NULL == atc->srcimps)
+                return -ENOMEM;
+        atc->pcm = kzalloc(sizeof(void *)*(2*4), GFP_KERNEL);
+        if (NULL == atc->pcm)
+                return -ENOMEM;
+        daio_mgr = (struct daio_mgr *)atc->rsc_mgrs[DAIO];
+        da_desc.msr = atc->msr;
+        for (i = 0, atc->n_daio = 0; i < DAIONUM-1; i++) {
+                da_desc.type = i;
+                err = daio_mgr->get_daio(daio_mgr, &da_desc,
+                                        (struct daio **)&atc->daios[i]);
+                if (err) {
+                        printk(KERN_ERR "ctxfi: Failed to get DAIO "
+                                        "resource %d!!!\n", i);
+                        return err;
+                }
+                atc->n_daio++;
+        }
+        if (atc->model == CTSB073X)
+                da_desc.type = SPDIFI1;
+        else
+                da_desc.type = SPDIFIO;
+        err = daio_mgr->get_daio(daio_mgr, &da_desc,
+                                (struct daio **)&atc->daios[i]);
+        if (err) {
+                printk(KERN_ERR "ctxfi: Failed to get S/PDIF-in resource!!!\n");
+                return err;
+        }
+        atc->n_daio++;
+        src_mgr = atc->rsc_mgrs[SRC];
+        src_dsc.multi = 1;
+        src_dsc.msr = atc->msr;
+        src_dsc.mode = ARCRW;
+        for (i = 0, atc->n_src = 0; i < (2*2); i++) {
+                err = src_mgr->get_src(src_mgr, &src_dsc,
+                                        (struct src **)&atc->srcs[i]);
+                if (err)
+                        return err;
+                atc->n_src++;
+        }
+        srcimp_mgr = atc->rsc_mgrs[SRCIMP];
+        srcimp_dsc.msr = 8; /* SRCIMPs for S/PDIFIn SRT */
+        for (i = 0, atc->n_srcimp = 0; i < (2*1); i++) {
+                err = srcimp_mgr->get_srcimp(srcimp_mgr, &srcimp_dsc,
+                                        (struct srcimp **)&atc->srcimps[i]);
+                if (err)
+                        return err;
+                atc->n_srcimp++;
+        }
+        srcimp_dsc.msr = 8; /* SRCIMPs for LINE/MICIn SRT */
+        for (i = 0; i < (2*1); i++) {
+                err = srcimp_mgr->get_srcimp(srcimp_mgr, &srcimp_dsc,
+                                (struct srcimp **)&atc->srcimps[2*1+i]);
+                if (err)
+                        return err;
+                atc->n_srcimp++;
+        }
+        sum_mgr = atc->rsc_mgrs[SUM];
+        sum_dsc.msr = atc->msr;
+        for (i = 0, atc->n_pcm = 0; i < (2*4); i++) {
+                err = sum_mgr->get_sum(sum_mgr, &sum_dsc,
+                                        (struct sum **)&atc->pcm[i]);
+                if (err)
+                        return err;
+                atc->n_pcm++;
+        }
+        err = ct_mixer_create(atc, (struct ct_mixer **)&atc->mixer);
+        if (err) {
+                printk(KERN_ERR "ctxfi: Failed to create mixer obj!!!\n");
+                return err;
+        }
+        return 0;
+}
+static void __devinit
+atc_connect_dai(struct src_mgr *src_mgr, struct dai *dai,
+                struct src **srcs, struct srcimp **srcimps)
+{
+        struct rsc *rscs[2] = {NULL};
+        struct src *src;
+        struct srcimp *srcimp;
+        int i = 0;
+        rscs[0] = &dai->daio.rscl;
+        rscs[1] = &dai->daio.rscr;
+        for (i = 0; i < 2; i++) {
+                src = srcs[i];
+                srcimp = srcimps[i];
+                srcimp->ops->map(srcimp, src, rscs[i]);
+                src_mgr->src_disable(src_mgr, src);
+        }
+        src_mgr->commit_write(src_mgr); /* Actually disable SRCs */
+        src = srcs[0];
+        src->ops->set_pm(src, 1);
+        for (i = 0; i < 2; i++) {
+                src = srcs[i];
+                src->ops->set_state(src, SRC_STATE_RUN);
+                src->ops->commit_write(src);
+                src_mgr->src_enable_s(src_mgr, src);
+        }
+        dai->ops->set_srt_srcl(dai, &(srcs[0]->rsc));
+        dai->ops->set_srt_srcr(dai, &(srcs[1]->rsc));
+        dai->ops->set_enb_src(dai, 1);
+        dai->ops->set_enb_srt(dai, 1);
+        dai->ops->commit_write(dai);
+        src_mgr->commit_write(src_mgr); /* Synchronously enable SRCs */
+}
+static void __devinit atc_connect_resources(struct ct_atc *atc)
+{
+        struct dai *dai;
+        struct dao *dao;
+        struct src *src;
+        struct sum *sum;
+        struct ct_mixer *mixer;
+        struct rsc *rscs[2] = {NULL};
+        int i, j;
+        mixer = atc->mixer;
+        for (i = MIX_WAVE_FRONT, j = LINEO1; i <= MIX_SPDIF_OUT; i++, j++) {
+                mixer->get_output_ports(mixer, i, &rscs[0], &rscs[1]);
+                dao = container_of(atc->daios[j], struct dao, daio);
+                dao->ops->set_left_input(dao, rscs[0]);
+                dao->ops->set_right_input(dao, rscs[1]);
+        }
+        dai = container_of(atc->daios[LINEIM], struct dai, daio);
+        atc_connect_dai(atc->rsc_mgrs[SRC], dai,
+                        (struct src **)&atc->srcs[2],
+                        (struct srcimp **)&atc->srcimps[2]);
+        src = atc->srcs[2];
+        mixer->set_input_left(mixer, MIX_LINE_IN, &src->rsc);
+        src = atc->srcs[3];
+        mixer->set_input_right(mixer, MIX_LINE_IN, &src->rsc);
+        dai = container_of(atc->daios[SPDIFIO], struct dai, daio);
+        atc_connect_dai(atc->rsc_mgrs[SRC], dai,
+                        (struct src **)&atc->srcs[0],
+                        (struct srcimp **)&atc->srcimps[0]);
+        src = atc->srcs[0];
+        mixer->set_input_left(mixer, MIX_SPDIF_IN, &src->rsc);
+        src = atc->srcs[1];
+        mixer->set_input_right(mixer, MIX_SPDIF_IN, &src->rsc);
+        for (i = MIX_PCMI_FRONT, j = 0; i <= MIX_PCMI_SURROUND; i++, j += 2) {
+                sum = atc->pcm[j];
+                mixer->set_input_left(mixer, i, &sum->rsc);
+                sum = atc->pcm[j+1];
+                mixer->set_input_right(mixer, i, &sum->rsc);
+        }
+}
+static struct ct_atc atc_preset __devinitdata = {
+        .map_audio_buffer = ct_map_audio_buffer,
+        .unmap_audio_buffer = ct_unmap_audio_buffer,
+        .pcm_playback_prepare = atc_pcm_playback_prepare,
+        .pcm_release_resources = atc_pcm_release_resources,
+        .pcm_playback_start = atc_pcm_playback_start,
+        .pcm_playback_stop = atc_pcm_stop,
+        .pcm_playback_position = atc_pcm_playback_position,
+        .pcm_capture_prepare = atc_pcm_capture_prepare,
+        .pcm_capture_start = atc_pcm_capture_start,
+        .pcm_capture_stop = atc_pcm_stop,
+        .pcm_capture_position = atc_pcm_capture_position,
+        .spdif_passthru_playback_prepare = spdif_passthru_playback_prepare,
+        .get_ptp_phys = atc_get_ptp_phys,
+        .select_line_in = atc_select_line_in,
+        .select_mic_in = atc_select_mic_in,
+        .select_digit_io = atc_select_digit_io,
+        .line_front_unmute = atc_line_front_unmute,
+        .line_surround_unmute = atc_line_surround_unmute,
+        .line_clfe_unmute = atc_line_clfe_unmute,
+        .line_rear_unmute = atc_line_rear_unmute,
+        .line_in_unmute = atc_line_in_unmute,
+        .spdif_out_unmute = atc_spdif_out_unmute,
+        .spdif_in_unmute = atc_spdif_in_unmute,
+        .spdif_out_get_status = atc_spdif_out_get_status,
+        .spdif_out_set_status = atc_spdif_out_set_status,
+        .spdif_out_passthru = atc_spdif_out_passthru,
+        .have_digit_io_switch = atc_have_digit_io_switch,
+};
+/**
+ *  ct_atc_create - create and initialize a hardware manager
+ *  @card: corresponding alsa card object
+ *  @pci: corresponding kernel pci device object
+ *  @ratc: return created object address in it
+ *
+ *  Creates and initializes a hardware manager.
+ *
+ *  Creates kmallocated ct_atc structure. Initializes hardware.
+ *  Returns 0 if suceeds, or negative error code if fails.
+ */
+int __devinit ct_atc_create(struct snd_card *card, struct pci_dev *pci,
+                            unsigned int rsr, unsigned int msr,
+                            int chip_type, struct ct_atc **ratc)
+{
+        struct ct_atc *atc;
+        static struct snd_device_ops ops = {
+                .dev_free = atc_dev_free,
+        };
+        int err;
+        *ratc = NULL;
+        atc = kzalloc(sizeof(*atc), GFP_KERNEL);
+        if (NULL == atc)
+                return -ENOMEM;
+        /* Set operations */
+        *atc = atc_preset;
+        atc->card = card;
+        atc->pci = pci;
+        atc->rsr = rsr;
+        atc->msr = msr;
+        atc->chip_type = chip_type;
+        spin_lock_init(&atc->atc_lock);
+        /* Find card model */
+        err = atc_identify_card(atc);
+        if (err < 0) {
+                printk(KERN_ERR "ctatc: Card not recognised\n");
+                goto error1;
+        }
+        /* Set up device virtual memory management object */
+        err = ct_vm_create(&atc->vm);
+        if (err < 0)
+                goto error1;
+        /* Create all atc hw devices */
+        err = atc_create_hw_devs(atc);
+        if (err < 0)
+                goto error1;
+        /* Get resources */
+        err = atc_get_resources(atc);
+        if (err < 0)
+                goto error1;
+        /* Build topology */
+        atc_connect_resources(atc);
+        atc->timer = ct_timer_new(atc);
+        if (!atc->timer)
+                goto error1;
+        err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, atc, &ops);
+        if (err < 0)
+                goto error1;
+        snd_card_set_dev(card, &pci->dev);
+        *ratc = atc;
+        return 0;
+error1:
+        ct_atc_destroy(atc);
+        printk(KERN_ERR "ctxfi: Something wrong!!!\n");
+        return err;
+}
diff --git a/sound/pci/ctxfi/ctatc.h b/sound/pci/ctxfi/ctatc.h
new file mode 100644
index 000000000000..a03347232e84
--- /dev/null
+++ b/sound/pci/ctxfi/ctatc.h
@@ -0,0 +1,147 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File        ctatc.h
+ *
+ * @Brief
+ * This file contains the definition of the device resource management object.
+ *
+ * @Author      Liu Chun
+ * @Date        Mar 28 2008
+ *
+ */
+#ifndef CTATC_H
+#define CTATC_H
+#include <linux/types.h>
+#include <linux/spinlock_types.h>
+#include <linux/pci.h>
+#include <linux/timer.h>
+#include <sound/core.h>
+#include "ctvmem.h"
+#include "ctresource.h"
+enum CTALSADEVS {               /* Types of alsa devices */
+        FRONT,
+        SURROUND,
+        CLFE,
+        SIDE,
+        IEC958,
+        MIXER,
+        NUM_CTALSADEVS          /* This should always be the last */
+};
+struct ct_atc_chip_sub_details {
+        u16 subsys;
+        const char *nm_model;
+};
+struct ct_atc_chip_details {
+        u16 vendor;
+        u16 device;
+        const struct ct_atc_chip_sub_details *sub_details;
+        const char *nm_card;
+};
+struct ct_atc;
+struct ct_timer;
+struct ct_timer_instance;
+/* alsa pcm stream descriptor */
+struct ct_atc_pcm {
+        struct snd_pcm_substream *substream;
+        void (*interrupt)(struct ct_atc_pcm *apcm);
+        struct ct_timer_instance *timer;
+        unsigned int started:1;
+        /* Only mono and interleaved modes are supported now. */
+        struct ct_vm_block *vm_block;
+        void *src;              /* SRC for interacting with host memory */
+        void **srccs;           /* SRCs for sample rate conversion */
+        void **srcimps;         /* SRC Input Mappers */
+        void **amixers;         /* AMIXERs for routing converted data */
+        void *mono;             /* A SUM resource for mixing chs to one */
+        unsigned char n_srcc;   /* Number of converting SRCs */
+        unsigned char n_srcimp; /* Number of SRC Input Mappers */
+        unsigned char n_amixer; /* Number of AMIXERs */
+};
+/* Chip resource management object */
+struct ct_atc {
+        struct pci_dev *pci;
+        struct snd_card *card;
+        unsigned int rsr; /* reference sample rate in Hz */
+        unsigned int msr; /* master sample rate in rsr */
+        unsigned int pll_rate; /* current rate of Phase Lock Loop */
+        int chip_type;
+        int model;
+        const char *chip_name;
+        const char *model_name;
+        struct ct_vm *vm; /* device virtual memory manager for this card */
+        int (*map_audio_buffer)(struct ct_atc *atc, struct ct_atc_pcm *apcm);
+        void (*unmap_audio_buffer)(struct ct_atc *atc, struct ct_atc_pcm *apcm);
+        unsigned long (*get_ptp_phys)(struct ct_atc *atc, int index);
+        spinlock_t atc_lock;
+        int (*pcm_playback_prepare)(struct ct_atc *atc,
+                                    struct ct_atc_pcm *apcm);
+        int (*pcm_playback_start)(struct ct_atc *atc, struct ct_atc_pcm *apcm);
+        int (*pcm_playback_stop)(struct ct_atc *atc, struct ct_atc_pcm *apcm);
+        int (*pcm_playback_position)(struct ct_atc *atc,
+                                     struct ct_atc_pcm *apcm);
+        int (*spdif_passthru_playback_prepare)(struct ct_atc *atc,
+                                               struct ct_atc_pcm *apcm);
+        int (*pcm_capture_prepare)(struct ct_atc *atc, struct ct_atc_pcm *apcm);
+        int (*pcm_capture_start)(struct ct_atc *atc, struct ct_atc_pcm *apcm);
+        int (*pcm_capture_stop)(struct ct_atc *atc, struct ct_atc_pcm *apcm);
+        int (*pcm_capture_position)(struct ct_atc *atc,
+                                    struct ct_atc_pcm *apcm);
+        int (*pcm_release_resources)(struct ct_atc *atc,
+                                     struct ct_atc_pcm *apcm);
+        int (*select_line_in)(struct ct_atc *atc);
+        int (*select_mic_in)(struct ct_atc *atc);
+        int (*select_digit_io)(struct ct_atc *atc);
+        int (*line_front_unmute)(struct ct_atc *atc, unsigned char state);
+        int (*line_surround_unmute)(struct ct_atc *atc, unsigned char state);
+        int (*line_clfe_unmute)(struct ct_atc *atc, unsigned char state);
+        int (*line_rear_unmute)(struct ct_atc *atc, unsigned char state);
+        int (*line_in_unmute)(struct ct_atc *atc, unsigned char state);
+        int (*spdif_out_unmute)(struct ct_atc *atc, unsigned char state);
+        int (*spdif_in_unmute)(struct ct_atc *atc, unsigned char state);
+        int (*spdif_out_get_status)(struct ct_atc *atc, unsigned int *status);
+        int (*spdif_out_set_status)(struct ct_atc *atc, unsigned int status);
+        int (*spdif_out_passthru)(struct ct_atc *atc, unsigned char state);
+        int (*have_digit_io_switch)(struct ct_atc *atc);
+        /* Don't touch! Used for internal object. */
+        void *rsc_mgrs[NUM_RSCTYP]; /* chip resource managers */
+        void *mixer;            /* internal mixer object */
+        void *hw;               /* chip specific hardware access object */
+        void **daios;           /* digital audio io resources */
+        void **pcm;             /* SUMs for collecting all pcm stream */
+        void **srcs;            /* Sample Rate Converters for input signal */
+        void **srcimps;         /* input mappers for SRCs */
+        unsigned char n_daio;
+        unsigned char n_src;
+        unsigned char n_srcimp;
+        unsigned char n_pcm;
+        struct ct_timer *timer;
+};
+int __devinit ct_atc_create(struct snd_card *card, struct pci_dev *pci,
+                            unsigned int rsr, unsigned int msr, int chip_type,
+                            struct ct_atc **ratc);
+int __devinit ct_atc_create_alsa_devs(struct ct_atc *atc);
+#endif /* CTATC_H */
diff --git a/sound/pci/ctxfi/ctdaio.c b/sound/pci/ctxfi/ctdaio.c
new file mode 100644
index 000000000000..082e35c08c02
--- /dev/null
+++ b/sound/pci/ctxfi/ctdaio.c
@@ -0,0 +1,769 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File        ctdaio.c
+ *
+ * @Brief
+ * This file contains the implementation of Digital Audio Input Output
+ * resource management object.
+ *
+ * @Author      Liu Chun
+ * @Date        May 23 2008
+ *
+ */
+#include "ctdaio.h"
+#include "cthardware.h"
+#include "ctimap.h"
+#include <linux/slab.h>
+#include <linux/kernel.h>
+#define DAIO_RESOURCE_NUM       NUM_DAIOTYP
+#define DAIO_OUT_MAX            SPDIFOO
+union daio_usage {
+        struct {
+                unsigned short lineo1:1;
+                unsigned short lineo2:1;
+                unsigned short lineo3:1;
+                unsigned short lineo4:1;
+                unsigned short spdifoo:1;
+                unsigned short lineim:1;
+                unsigned short spdifio:1;
+                unsigned short spdifi1:1;
+        } bf;
+        unsigned short data;
+};
+struct daio_rsc_idx {
+        unsigned short left;
+        unsigned short right;
+};
+struct daio_rsc_idx idx_20k1[NUM_DAIOTYP] = {
+        [LINEO1] = {.left = 0x00, .right = 0x01},
+        [LINEO2] = {.left = 0x18, .right = 0x19},
+        [LINEO3] = {.left = 0x08, .right = 0x09},
+        [LINEO4] = {.left = 0x10, .right = 0x11},
+        [LINEIM] = {.left = 0x1b5, .right = 0x1bd},
+        [SPDIFOO] = {.left = 0x20, .right = 0x21},
+        [SPDIFIO] = {.left = 0x15, .right = 0x1d},
+        [SPDIFI1] = {.left = 0x95, .right = 0x9d},
+};
+struct daio_rsc_idx idx_20k2[NUM_DAIOTYP] = {
+        [LINEO1] = {.left = 0x40, .right = 0x41},
+        [LINEO2] = {.left = 0x70, .right = 0x71},
+        [LINEO3] = {.left = 0x50, .right = 0x51},
+        [LINEO4] = {.left = 0x60, .right = 0x61},
+        [LINEIM] = {.left = 0x45, .right = 0xc5},
+        [SPDIFOO] = {.left = 0x00, .right = 0x01},
+        [SPDIFIO] = {.left = 0x05, .right = 0x85},
+};
+static int daio_master(struct rsc *rsc)
+{
+        /* Actually, this is not the resource index of DAIO.
+         * For DAO, it is the input mapper index. And, for DAI,
+         * it is the output time-slot index. */
+        return rsc->conj = rsc->idx;
+}
+static int daio_index(const struct rsc *rsc)
+{
+        return rsc->conj;
+}
+static int daio_out_next_conj(struct rsc *rsc)
+{
+        return rsc->conj += 2;
+}
+static int daio_in_next_conj_20k1(struct rsc *rsc)
+{
+        return rsc->conj += 0x200;
+}
+static int daio_in_next_conj_20k2(struct rsc *rsc)
+{
+        return rsc->conj += 0x100;
+}
+static struct rsc_ops daio_out_rsc_ops = {
+        .master         = daio_master,
+        .next_conj      = daio_out_next_conj,
+        .index          = daio_index,
+        .output_slot    = NULL,
+};
+static struct rsc_ops daio_in_rsc_ops_20k1 = {
+        .master         = daio_master,
+        .next_conj      = daio_in_next_conj_20k1,
+        .index          = NULL,
+        .output_slot    = daio_index,
+};
+static struct rsc_ops daio_in_rsc_ops_20k2 = {
+        .master         = daio_master,
+        .next_conj      = daio_in_next_conj_20k2,
+        .index          = NULL,
+        .output_slot    = daio_index,
+};
+static unsigned int daio_device_index(enum DAIOTYP type, struct hw *hw)
+{
+        switch (hw->chip_type) {
+        case ATC20K1:
+                switch (type) {
+                case SPDIFOO:   return 0;
+                case SPDIFIO:   return 0;
+                case SPDIFI1:   return 1;
+                case LINEO1:    return 4;
+                case LINEO2:    return 7;
+                case LINEO3:    return 5;
+                case LINEO4:    return 6;
+                case LINEIM:    return 7;
+                default:        return -EINVAL;
+                }
+        case ATC20K2:
+                switch (type) {
+                case SPDIFOO:   return 0;
+                case SPDIFIO:   return 0;
+                case LINEO1:    return 4;
+                case LINEO2:    return 7;
+                case LINEO3:    return 5;
+                case LINEO4:    return 6;
+                case LINEIM:    return 4;
+                default:        return -EINVAL;
+                }
+        default:
+                return -EINVAL;
+        }
+}
+static int dao_rsc_reinit(struct dao *dao, const struct dao_desc *desc);
+static int dao_spdif_get_spos(struct dao *dao, unsigned int *spos)
+{
+        ((struct hw *)dao->hw)->dao_get_spos(dao->ctrl_blk, spos);
+        return 0;
+}
+static int dao_spdif_set_spos(struct dao *dao, unsigned int spos)
+{
+        ((struct hw *)dao->hw)->dao_set_spos(dao->ctrl_blk, spos);
+        return 0;
+}
+static int dao_commit_write(struct dao *dao)
+{
+        ((struct hw *)dao->hw)->dao_commit_write(dao->hw,
+                daio_device_index(dao->daio.type, dao->hw), dao->ctrl_blk);
+        return 0;
+}
+static int dao_set_left_input(struct dao *dao, struct rsc *input)
+{
+        struct imapper *entry;
+        struct daio *daio = &dao->daio;
+        int i;
+        entry = kzalloc((sizeof(*entry) * daio->rscl.msr), GFP_KERNEL);
+        if (NULL == entry)
+                return -ENOMEM;
+        /* Program master and conjugate resources */
+        input->ops->master(input);
+        daio->rscl.ops->master(&daio->rscl);
+        for (i = 0; i < daio->rscl.msr; i++, entry++) {
+                entry->slot = input->ops->output_slot(input);
+                entry->user = entry->addr = daio->rscl.ops->index(&daio->rscl);
+                dao->mgr->imap_add(dao->mgr, entry);
+                dao->imappers[i] = entry;
+                input->ops->next_conj(input);
+                daio->rscl.ops->next_conj(&daio->rscl);
+        }
+        input->ops->master(input);
+        daio->rscl.ops->master(&daio->rscl);
+        return 0;
+}
+static int dao_set_right_input(struct dao *dao, struct rsc *input)
+{
+        struct imapper *entry;
+        struct daio *daio = &dao->daio;
+        int i;
+        entry = kzalloc((sizeof(*entry) * daio->rscr.msr), GFP_KERNEL);
+        if (NULL == entry)
+                return -ENOMEM;
+        /* Program master and conjugate resources */
+        input->ops->master(input);
+        daio->rscr.ops->master(&daio->rscr);
+        for (i = 0; i < daio->rscr.msr; i++, entry++) {
+                entry->slot = input->ops->output_slot(input);
+                entry->user = entry->addr = daio->rscr.ops->index(&daio->rscr);
+                dao->mgr->imap_add(dao->mgr, entry);
+                dao->imappers[daio->rscl.msr + i] = entry;
+                input->ops->next_conj(input);
+                daio->rscr.ops->next_conj(&daio->rscr);
+        }
+        input->ops->master(input);
+        daio->rscr.ops->master(&daio->rscr);
+        return 0;
+}
+static int dao_clear_left_input(struct dao *dao)
+{
+        struct imapper *entry;
+        struct daio *daio = &dao->daio;
+        int i;
+        if (NULL == dao->imappers[0])
+                return 0;
+        entry = dao->imappers[0];
+        dao->mgr->imap_delete(dao->mgr, entry);
+        /* Program conjugate resources */
+        for (i = 1; i < daio->rscl.msr; i++) {
+                entry = dao->imappers[i];
+                dao->mgr->imap_delete(dao->mgr, entry);
+                dao->imappers[i] = NULL;
+        }
+        kfree(dao->imappers[0]);
+        dao->imappers[0] = NULL;
+        return 0;
+}
+static int dao_clear_right_input(struct dao *dao)
+{
+        struct imapper *entry;
+        struct daio *daio = &dao->daio;
+        int i;
+        if (NULL == dao->imappers[daio->rscl.msr])
+                return 0;
+        entry = dao->imappers[daio->rscl.msr];
+        dao->mgr->imap_delete(dao->mgr, entry);
+        /* Program conjugate resources */
+        for (i = 1; i < daio->rscr.msr; i++) {
+                entry = dao->imappers[daio->rscl.msr + i];
+                dao->mgr->imap_delete(dao->mgr, entry);
+                dao->imappers[daio->rscl.msr + i] = NULL;
+        }
+        kfree(dao->imappers[daio->rscl.msr]);
+        dao->imappers[daio->rscl.msr] = NULL;
+        return 0;
+}
+static struct dao_rsc_ops dao_ops = {
+        .set_spos               = dao_spdif_set_spos,
+        .commit_write           = dao_commit_write,
+        .get_spos               = dao_spdif_get_spos,
+        .reinit                 = dao_rsc_reinit,
+        .set_left_input         = dao_set_left_input,
+        .set_right_input        = dao_set_right_input,
+        .clear_left_input       = dao_clear_left_input,
+        .clear_right_input      = dao_clear_right_input,
+};
+static int dai_set_srt_srcl(struct dai *dai, struct rsc *src)
+{
+        src->ops->master(src);
+        ((struct hw *)dai->hw)->dai_srt_set_srcm(dai->ctrl_blk,
+                                                src->ops->index(src));
+        return 0;
+}
+static int dai_set_srt_srcr(struct dai *dai, struct rsc *src)
+{
+        src->ops->master(src);
+        ((struct hw *)dai->hw)->dai_srt_set_srco(dai->ctrl_blk,
+                                                src->ops->index(src));
+        return 0;
+}
+static int dai_set_srt_msr(struct dai *dai, unsigned int msr)
+{
+        unsigned int rsr;
+        for (rsr = 0; msr > 1; msr >>= 1)
+                rsr++;
+        ((struct hw *)dai->hw)->dai_srt_set_rsr(dai->ctrl_blk, rsr);
+        return 0;
+}
+static int dai_set_enb_src(struct dai *dai, unsigned int enb)
+{
+        ((struct hw *)dai->hw)->dai_srt_set_ec(dai->ctrl_blk, enb);
+        return 0;
+}
+static int dai_set_enb_srt(struct dai *dai, unsigned int enb)
+{
+        ((struct hw *)dai->hw)->dai_srt_set_et(dai->ctrl_blk, enb);
+        return 0;
+}
+static int dai_commit_write(struct dai *dai)
+{
+        ((struct hw *)dai->hw)->dai_commit_write(dai->hw,
+                daio_device_index(dai->daio.type, dai->hw), dai->ctrl_blk);
+        return 0;
+}
+static struct dai_rsc_ops dai_ops = {
+        .set_srt_srcl           = dai_set_srt_srcl,
+        .set_srt_srcr           = dai_set_srt_srcr,
+        .set_srt_msr            = dai_set_srt_msr,
+        .set_enb_src            = dai_set_enb_src,
+        .set_enb_srt            = dai_set_enb_srt,
+        .commit_write           = dai_commit_write,
+};
+static int daio_rsc_init(struct daio *daio,
+                         const struct daio_desc *desc,
+                         void *hw)
+{
+        int err;
+        unsigned int idx_l, idx_r;
+        switch (((struct hw *)hw)->chip_type) {
+        case ATC20K1:
+                idx_l = idx_20k1[desc->type].left;
+                idx_r = idx_20k1[desc->type].right;
+                break;
+        case ATC20K2:
+                idx_l = idx_20k2[desc->type].left;
+                idx_r = idx_20k2[desc->type].right;
+                break;
+        default:
+                return -EINVAL;
+        }
+        err = rsc_init(&daio->rscl, idx_l, DAIO, desc->msr, hw);
+        if (err)
+                return err;
+        err = rsc_init(&daio->rscr, idx_r, DAIO, desc->msr, hw);
+        if (err)
+                goto error1;
+        /* Set daio->rscl/r->ops to daio specific ones */
+        if (desc->type <= DAIO_OUT_MAX) {
+                daio->rscl.ops = daio->rscr.ops = &daio_out_rsc_ops;
+        } else {
+                switch (((struct hw *)hw)->chip_type) {
+                case ATC20K1:
+                        daio->rscl.ops = daio->rscr.ops = &daio_in_rsc_ops_20k1;
+                        break;
+                case ATC20K2:
+                        daio->rscl.ops = daio->rscr.ops = &daio_in_rsc_ops_20k2;
+                        break;
+                default:
+                        break;
+                }
+        }
+        daio->type = desc->type;
+        return 0;
+error1:
+        rsc_uninit(&daio->rscl);
+        return err;
+}
+static int daio_rsc_uninit(struct daio *daio)
+{
+        rsc_uninit(&daio->rscl);
+        rsc_uninit(&daio->rscr);
+        return 0;
+}
+static int dao_rsc_init(struct dao *dao,
+                        const struct daio_desc *desc,
+                        struct daio_mgr *mgr)
+{
+        struct hw *hw = mgr->mgr.hw;
+        unsigned int conf;
+        int err;
+        err = daio_rsc_init(&dao->daio, desc, mgr->mgr.hw);
+        if (err)
+                return err;
+        dao->imappers = kzalloc(sizeof(void *)*desc->msr*2, GFP_KERNEL);
+        if (NULL == dao->imappers) {
+                err = -ENOMEM;
+                goto error1;
+        }
+        dao->ops = &dao_ops;
+        dao->mgr = mgr;
+        dao->hw = hw;
+        err = hw->dao_get_ctrl_blk(&dao->ctrl_blk);
+        if (err)
+                goto error2;
+        hw->daio_mgr_dsb_dao(mgr->mgr.ctrl_blk,
+                        daio_device_index(dao->daio.type, hw));
+        hw->daio_mgr_commit_write(hw, mgr->mgr.ctrl_blk);
+        conf = (desc->msr & 0x7) | (desc->passthru << 3);
+        hw->daio_mgr_dao_init(mgr->mgr.ctrl_blk,
+                        daio_device_index(dao->daio.type, hw), conf);
+        hw->daio_mgr_enb_dao(mgr->mgr.ctrl_blk,
+                        daio_device_index(dao->daio.type, hw));
+        hw->daio_mgr_commit_write(hw, mgr->mgr.ctrl_blk);
+        return 0;
+error2:
+        kfree(dao->imappers);
+        dao->imappers = NULL;
+error1:
+        daio_rsc_uninit(&dao->daio);
+        return err;
+}
+static int dao_rsc_uninit(struct dao *dao)
+{
+        if (NULL != dao->imappers) {
+                if (NULL != dao->imappers[0])
+                        dao_clear_left_input(dao);
+                if (NULL != dao->imappers[dao->daio.rscl.msr])
+                        dao_clear_right_input(dao);
+                kfree(dao->imappers);
+                dao->imappers = NULL;
+        }
+        ((struct hw *)dao->hw)->dao_put_ctrl_blk(dao->ctrl_blk);
+        dao->hw = dao->ctrl_blk = NULL;
+        daio_rsc_uninit(&dao->daio);
+        return 0;
+}
+static int dao_rsc_reinit(struct dao *dao, const struct dao_desc *desc)
+{
+        struct daio_mgr *mgr = dao->mgr;
+        struct daio_desc dsc = {0};
+        dsc.type = dao->daio.type;
+        dsc.msr = desc->msr;
+        dsc.passthru = desc->passthru;
+        dao_rsc_uninit(dao);
+        return dao_rsc_init(dao, &dsc, mgr);
+}
+static int dai_rsc_init(struct dai *dai,
+                        const struct daio_desc *desc,
+                        struct daio_mgr *mgr)
+{
+        int err;
+        struct hw *hw = mgr->mgr.hw;
+        unsigned int rsr, msr;
+        err = daio_rsc_init(&dai->daio, desc, mgr->mgr.hw);
+        if (err)
+                return err;
+        dai->ops = &dai_ops;
+        dai->hw = mgr->mgr.hw;
+        err = hw->dai_get_ctrl_blk(&dai->ctrl_blk);
+        if (err)
+                goto error1;
+        for (rsr = 0, msr = desc->msr; msr > 1; msr >>= 1)
+                rsr++;
+        hw->dai_srt_set_rsr(dai->ctrl_blk, rsr);
+        hw->dai_srt_set_drat(dai->ctrl_blk, 0);
+        /* default to disabling control of a SRC */
+        hw->dai_srt_set_ec(dai->ctrl_blk, 0);
+        hw->dai_srt_set_et(dai->ctrl_blk, 0); /* default to disabling SRT */
+        hw->dai_commit_write(hw,
+                daio_device_index(dai->daio.type, dai->hw), dai->ctrl_blk);
+        return 0;
+error1:
+        daio_rsc_uninit(&dai->daio);
+        return err;
+}
+static int dai_rsc_uninit(struct dai *dai)
+{
+        ((struct hw *)dai->hw)->dai_put_ctrl_blk(dai->ctrl_blk);
+        dai->hw = dai->ctrl_blk = NULL;
+        daio_rsc_uninit(&dai->daio);
+        return 0;
+}
+static int daio_mgr_get_rsc(struct rsc_mgr *mgr, enum DAIOTYP type)
+{
+        if (((union daio_usage *)mgr->rscs)->data & (0x1 << type))
+                return -ENOENT;
+        ((union daio_usage *)mgr->rscs)->data |= (0x1 << type);
+        return 0;
+}
+static int daio_mgr_put_rsc(struct rsc_mgr *mgr, enum DAIOTYP type)
+{
+        ((union daio_usage *)mgr->rscs)->data &= ~(0x1 << type);
+        return 0;
+}
+static int get_daio_rsc(struct daio_mgr *mgr,
+                        const struct daio_desc *desc,
+                        struct daio **rdaio)
+{
+        int err;
+        struct dai *dai = NULL;
+        struct dao *dao = NULL;
+        unsigned long flags;
+        *rdaio = NULL;
+        /* Check whether there are sufficient daio resources to meet request. */
+        spin_lock_irqsave(&mgr->mgr_lock, flags);
+        err = daio_mgr_get_rsc(&mgr->mgr, desc->type);
+        spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+        if (err) {
+                printk(KERN_ERR "Can't meet DAIO resource request!\n");
+                return err;
+        }
+        /* Allocate mem for daio resource */
+        if (desc->type <= DAIO_OUT_MAX) {
+                dao = kzalloc(sizeof(*dao), GFP_KERNEL);
+                if (NULL == dao) {
+                        err = -ENOMEM;
+                        goto error;
+                }
+                err = dao_rsc_init(dao, desc, mgr);
+                if (err)
+                        goto error;
+                *rdaio = &dao->daio;
+        } else {
+                dai = kzalloc(sizeof(*dai), GFP_KERNEL);
+                if (NULL == dai) {
+                        err = -ENOMEM;
+                        goto error;
+                }
+                err = dai_rsc_init(dai, desc, mgr);
+                if (err)
+                        goto error;
+                *rdaio = &dai->daio;
+        }
+        mgr->daio_enable(mgr, *rdaio);
+        mgr->commit_write(mgr);
+        return 0;
+error:
+        if (NULL != dao)
+                kfree(dao);
+        else if (NULL != dai)
+                kfree(dai);
+        spin_lock_irqsave(&mgr->mgr_lock, flags);
+        daio_mgr_put_rsc(&mgr->mgr, desc->type);
+        spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+        return err;
+}
+static int put_daio_rsc(struct daio_mgr *mgr, struct daio *daio)
+{
+        unsigned long flags;
+        mgr->daio_disable(mgr, daio);
+        mgr->commit_write(mgr);
+        spin_lock_irqsave(&mgr->mgr_lock, flags);
+        daio_mgr_put_rsc(&mgr->mgr, daio->type);
+        spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+        if (daio->type <= DAIO_OUT_MAX) {
+                dao_rsc_uninit(container_of(daio, struct dao, daio));
+                kfree(container_of(daio, struct dao, daio));
+        } else {
+                dai_rsc_uninit(container_of(daio, struct dai, daio));
+                kfree(container_of(daio, struct dai, daio));
+        }
+        return 0;
+}
+static int daio_mgr_enb_daio(struct daio_mgr *mgr, struct daio *daio)
+{
+        struct hw *hw = mgr->mgr.hw;
+        if (DAIO_OUT_MAX >= daio->type) {
+                hw->daio_mgr_enb_dao(mgr->mgr.ctrl_blk,
+                                daio_device_index(daio->type, hw));
+        } else {
+                hw->daio_mgr_enb_dai(mgr->mgr.ctrl_blk,
+                                daio_device_index(daio->type, hw));
+        }
+        return 0;
+}
+static int daio_mgr_dsb_daio(struct daio_mgr *mgr, struct daio *daio)
+{
+        struct hw *hw = mgr->mgr.hw;
+        if (DAIO_OUT_MAX >= daio->type) {
+                hw->daio_mgr_dsb_dao(mgr->mgr.ctrl_blk,
+                                daio_device_index(daio->type, hw));
+        } else {
+                hw->daio_mgr_dsb_dai(mgr->mgr.ctrl_blk,
+                                daio_device_index(daio->type, hw));
+        }
+        return 0;
+}
+static int daio_map_op(void *data, struct imapper *entry)
+{
+        struct rsc_mgr *mgr = &((struct daio_mgr *)data)->mgr;
+        struct hw *hw = mgr->hw;
+        hw->daio_mgr_set_imaparc(mgr->ctrl_blk, entry->slot);
+        hw->daio_mgr_set_imapnxt(mgr->ctrl_blk, entry->next);
+        hw->daio_mgr_set_imapaddr(mgr->ctrl_blk, entry->addr);
+        hw->daio_mgr_commit_write(mgr->hw, mgr->ctrl_blk);
+        return 0;
+}
+static int daio_imap_add(struct daio_mgr *mgr, struct imapper *entry)
+{
+        unsigned long flags;
+        int err;
+        spin_lock_irqsave(&mgr->imap_lock, flags);
+        if ((0 == entry->addr) && (mgr->init_imap_added)) {
+                input_mapper_delete(&mgr->imappers, mgr->init_imap,
+                                                        daio_map_op, mgr);
+                mgr->init_imap_added = 0;
+        }
+        err = input_mapper_add(&mgr->imappers, entry, daio_map_op, mgr);
+        spin_unlock_irqrestore(&mgr->imap_lock, flags);
+        return err;
+}
+static int daio_imap_delete(struct daio_mgr *mgr, struct imapper *entry)
+{
+        unsigned long flags;
+        int err;
+        spin_lock_irqsave(&mgr->imap_lock, flags);
+        err = input_mapper_delete(&mgr->imappers, entry, daio_map_op, mgr);
+        if (list_empty(&mgr->imappers)) {
+                input_mapper_add(&mgr->imappers, mgr->init_imap,
+                                                        daio_map_op, mgr);
+                mgr->init_imap_added = 1;
+        }
+        spin_unlock_irqrestore(&mgr->imap_lock, flags);
+        return err;
+}
+static int daio_mgr_commit_write(struct daio_mgr *mgr)
+{
+        struct hw *hw = mgr->mgr.hw;
+        hw->daio_mgr_commit_write(hw, mgr->mgr.ctrl_blk);
+        return 0;
+}
+int daio_mgr_create(void *hw, struct daio_mgr **rdaio_mgr)
+{
+        int err, i;
+        struct daio_mgr *daio_mgr;
+        struct imapper *entry;
+        *rdaio_mgr = NULL;
+        daio_mgr = kzalloc(sizeof(*daio_mgr), GFP_KERNEL);
+        if (NULL == daio_mgr)
+                return -ENOMEM;
+        err = rsc_mgr_init(&daio_mgr->mgr, DAIO, DAIO_RESOURCE_NUM, hw);
+        if (err)
+                goto error1;
+        spin_lock_init(&daio_mgr->mgr_lock);
+        spin_lock_init(&daio_mgr->imap_lock);
+        INIT_LIST_HEAD(&daio_mgr->imappers);
+        entry = kzalloc(sizeof(*entry), GFP_KERNEL);
+        if (NULL == entry) {
+                err = -ENOMEM;
+                goto error2;
+        }
+        entry->slot = entry->addr = entry->next = entry->user = 0;
+        list_add(&entry->list, &daio_mgr->imappers);
+        daio_mgr->init_imap = entry;
+        daio_mgr->init_imap_added = 1;
+        daio_mgr->get_daio = get_daio_rsc;
+        daio_mgr->put_daio = put_daio_rsc;
+        daio_mgr->daio_enable = daio_mgr_enb_daio;
+        daio_mgr->daio_disable = daio_mgr_dsb_daio;
+        daio_mgr->imap_add = daio_imap_add;
+        daio_mgr->imap_delete = daio_imap_delete;
+        daio_mgr->commit_write = daio_mgr_commit_write;
+        for (i = 0; i < 8; i++) {
+                ((struct hw *)hw)->daio_mgr_dsb_dao(daio_mgr->mgr.ctrl_blk, i);
+                ((struct hw *)hw)->daio_mgr_dsb_dai(daio_mgr->mgr.ctrl_blk, i);
+        }
+        ((struct hw *)hw)->daio_mgr_commit_write(hw, daio_mgr->mgr.ctrl_blk);
+        *rdaio_mgr = daio_mgr;
+        return 0;
+error2:
+        rsc_mgr_uninit(&daio_mgr->mgr);
+error1:
+        kfree(daio_mgr);
+        return err;
+}
+int daio_mgr_destroy(struct daio_mgr *daio_mgr)
+{
+        unsigned long flags;
+        /* free daio input mapper list */
+        spin_lock_irqsave(&daio_mgr->imap_lock, flags);
+        free_input_mapper_list(&daio_mgr->imappers);
+        spin_unlock_irqrestore(&daio_mgr->imap_lock, flags);
+        rsc_mgr_uninit(&daio_mgr->mgr);
+        kfree(daio_mgr);
+        return 0;
+}
diff --git a/sound/pci/ctxfi/ctdaio.h b/sound/pci/ctxfi/ctdaio.h
new file mode 100644
index 000000000000..0f52ce571ee8
--- /dev/null
+++ b/sound/pci/ctxfi/ctdaio.h
@@ -0,0 +1,122 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File        ctdaio.h
+ *
+ * @Brief
+ * This file contains the definition of Digital Audio Input Output
+ * resource management object.
+ *
+ * @Author      Liu Chun
+ * @Date        May 23 2008
+ *
+ */
+#ifndef CTDAIO_H
+#define CTDAIO_H
+#include "ctresource.h"
+#include "ctimap.h"
+#include <linux/spinlock.h>
+#include <linux/list.h>
+/* Define the descriptor of a daio resource */
+enum DAIOTYP {
+        LINEO1,
+        LINEO2,
+        LINEO3,
+        LINEO4,
+        SPDIFOO,        /* S/PDIF Out (Flexijack/Optical) */
+        LINEIM,
+        SPDIFIO,        /* S/PDIF In (Flexijack/Optical) on the card */
+        SPDIFI1,        /* S/PDIF In on internal Drive Bay */
+        NUM_DAIOTYP
+};
+struct dao_rsc_ops;
+struct dai_rsc_ops;
+struct daio_mgr;
+struct daio {
+        struct rsc rscl;        /* Basic resource info for left TX/RX */
+        struct rsc rscr;        /* Basic resource info for right TX/RX */
+        enum DAIOTYP type;
+};
+struct dao {
+        struct daio daio;
+        struct dao_rsc_ops *ops;        /* DAO specific operations */
+        struct imapper **imappers;
+        struct daio_mgr *mgr;
+        void *hw;
+        void *ctrl_blk;
+};
+struct dai {
+        struct daio daio;
+        struct dai_rsc_ops *ops;        /* DAI specific operations */
+        void *hw;
+        void *ctrl_blk;
+};
+struct dao_desc {
+        unsigned int msr:4;
+        unsigned int passthru:1;
+};
+struct dao_rsc_ops {
+        int (*set_spos)(struct dao *dao, unsigned int spos);
+        int (*commit_write)(struct dao *dao);
+        int (*get_spos)(struct dao *dao, unsigned int *spos);
+        int (*reinit)(struct dao *dao, const struct dao_desc *desc);
+        int (*set_left_input)(struct dao *dao, struct rsc *input);
+        int (*set_right_input)(struct dao *dao, struct rsc *input);
+        int (*clear_left_input)(struct dao *dao);
+        int (*clear_right_input)(struct dao *dao);
+};
+struct dai_rsc_ops {
+        int (*set_srt_srcl)(struct dai *dai, struct rsc *src);
+        int (*set_srt_srcr)(struct dai *dai, struct rsc *src);
+        int (*set_srt_msr)(struct dai *dai, unsigned int msr);
+        int (*set_enb_src)(struct dai *dai, unsigned int enb);
+        int (*set_enb_srt)(struct dai *dai, unsigned int enb);
+        int (*commit_write)(struct dai *dai);
+};
+/* Define daio resource request description info */
+struct daio_desc {
+        unsigned int type:4;
+        unsigned int msr:4;
+        unsigned int passthru:1;
+};
+struct daio_mgr {
+        struct rsc_mgr mgr;     /* Basic resource manager info */
+        spinlock_t mgr_lock;
+        spinlock_t imap_lock;
+        struct list_head imappers;
+        struct imapper *init_imap;
+        unsigned int init_imap_added;
+         /* request one daio resource */
+        int (*get_daio)(struct daio_mgr *mgr,
+                        const struct daio_desc *desc, struct daio **rdaio);
+        /* return one daio resource */
+        int (*put_daio)(struct daio_mgr *mgr, struct daio *daio);
+        int (*daio_enable)(struct daio_mgr *mgr, struct daio *daio);
+        int (*daio_disable)(struct daio_mgr *mgr, struct daio *daio);
+        int (*imap_add)(struct daio_mgr *mgr, struct imapper *entry);
+        int (*imap_delete)(struct daio_mgr *mgr, struct imapper *entry);
+        int (*commit_write)(struct daio_mgr *mgr);
+};
+/* Constructor and destructor of daio resource manager */
+int daio_mgr_create(void *hw, struct daio_mgr **rdaio_mgr);
+int daio_mgr_destroy(struct daio_mgr *daio_mgr);
+#endif /* CTDAIO_H */
diff --git a/sound/pci/ctxfi/cthardware.c b/sound/pci/ctxfi/cthardware.c
new file mode 100644
index 000000000000..8e64f4862e85
--- /dev/null
+++ b/sound/pci/ctxfi/cthardware.c
@@ -0,0 +1,91 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File        cthardware.c
+ *
+ * @Brief
+ * This file contains the implementation of hardware access methord.
+ *
+ * @Author      Liu Chun
+ * @Date        Jun 26 2008
+ *
+ */
+#include "cthardware.h"
+#include "cthw20k1.h"
+#include "cthw20k2.h"
+#include <linux/bug.h>
+int __devinit create_hw_obj(struct pci_dev *pci, enum CHIPTYP chip_type,
+                            enum CTCARDS model, struct hw **rhw)
+{
+        int err;
+        switch (chip_type) {
+        case ATC20K1:
+                err = create_20k1_hw_obj(rhw);
+                break;
+        case ATC20K2:
+                err = create_20k2_hw_obj(rhw);
+                break;
+        default:
+                err = -ENODEV;
+                break;
+        }
+        if (err)
+                return err;
+        (*rhw)->pci = pci;
+        (*rhw)->chip_type = chip_type;
+        (*rhw)->model = model;
+        return 0;
+}
+int destroy_hw_obj(struct hw *hw)
+{
+        int err;
+        switch (hw->pci->device) {
+        case 0x0005:    /* 20k1 device */
+                err = destroy_20k1_hw_obj(hw);
+                break;
+        case 0x000B:    /* 20k2 device */
+                err = destroy_20k2_hw_obj(hw);
+                break;
+        default:
+                err = -ENODEV;
+                break;
+        }
+        return err;
+}
+unsigned int get_field(unsigned int data, unsigned int field)
+{
+        int i;
+        BUG_ON(!field);
+        /* @field should always be greater than 0 */
+        for (i = 0; !(field & (1 << i)); )
+                i++;
+        return (data & field) >> i;
+}
+void set_field(unsigned int *data, unsigned int field, unsigned int value)
+{
+        int i;
+        BUG_ON(!field);
+        /* @field should always be greater than 0 */
+        for (i = 0; !(field & (1 << i)); )
+                i++;
+        *data = (*data & (~field)) | ((value << i) & field);
+}
diff --git a/sound/pci/ctxfi/cthardware.h b/sound/pci/ctxfi/cthardware.h
new file mode 100644
index 000000000000..4a8e04f090a4
--- /dev/null
+++ b/sound/pci/ctxfi/cthardware.h
@@ -0,0 +1,196 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File        cthardware.h
+ *
+ * @Brief
+ * This file contains the definition of hardware access methord.
+ *
+ * @Author      Liu Chun
+ * @Date        May 13 2008
+ *
+ */
+#ifndef CTHARDWARE_H
+#define CTHARDWARE_H
+#include <linux/types.h>
+#include <linux/pci.h>
+enum CHIPTYP {
+        ATC20K1,
+        ATC20K2,
+        ATCNONE
+};
+enum CTCARDS {
+        /* 20k1 models */
+        CTSB055X,
+        CTSB073X,
+        CTUAA,
+        CT20K1_UNKNOWN,
+        /* 20k2 models */
+        CTSB0760,
+        CTHENDRIX,
+        CTSB0880,
+        NUM_CTCARDS             /* This should always be the last */
+};
+/* Type of input source for ADC */
+enum ADCSRC{
+        ADC_MICIN,
+        ADC_LINEIN,
+        ADC_VIDEO,
+        ADC_AUX,
+        ADC_NONE        /* Switch to digital input */
+};
+struct card_conf {
+        /* device virtual mem page table page physical addr
+         * (supporting one page table page now) */
+        unsigned long vm_pgt_phys;
+        unsigned int rsr;       /* reference sample rate in Hzs*/
+        unsigned int msr;       /* master sample rate in rsrs */
+};
+struct hw {
+        int (*card_init)(struct hw *hw, struct card_conf *info);
+        int (*card_stop)(struct hw *hw);
+        int (*pll_init)(struct hw *hw, unsigned int rsr);
+        int (*is_adc_source_selected)(struct hw *hw, enum ADCSRC source);
+        int (*select_adc_source)(struct hw *hw, enum ADCSRC source);
+        int (*have_digit_io_switch)(struct hw *hw);
+        /* SRC operations */
+        int (*src_rsc_get_ctrl_blk)(void **rblk);
+        int (*src_rsc_put_ctrl_blk)(void *blk);
+        int (*src_set_state)(void *blk, unsigned int state);
+        int (*src_set_bm)(void *blk, unsigned int bm);
+        int (*src_set_rsr)(void *blk, unsigned int rsr);
+        int (*src_set_sf)(void *blk, unsigned int sf);
+        int (*src_set_wr)(void *blk, unsigned int wr);
+        int (*src_set_pm)(void *blk, unsigned int pm);
+        int (*src_set_rom)(void *blk, unsigned int rom);
+        int (*src_set_vo)(void *blk, unsigned int vo);
+        int (*src_set_st)(void *blk, unsigned int st);
+        int (*src_set_ie)(void *blk, unsigned int ie);
+        int (*src_set_ilsz)(void *blk, unsigned int ilsz);
+        int (*src_set_bp)(void *blk, unsigned int bp);
+        int (*src_set_cisz)(void *blk, unsigned int cisz);
+        int (*src_set_ca)(void *blk, unsigned int ca);
+        int (*src_set_sa)(void *blk, unsigned int sa);
+        int (*src_set_la)(void *blk, unsigned int la);
+        int (*src_set_pitch)(void *blk, unsigned int pitch);
+        int (*src_set_clear_zbufs)(void *blk, unsigned int clear);
+        int (*src_set_dirty)(void *blk, unsigned int flags);
+        int (*src_set_dirty_all)(void *blk);
+        int (*src_commit_write)(struct hw *hw, unsigned int idx, void *blk);
+        int (*src_get_ca)(struct hw *hw, unsigned int idx, void *blk);
+        unsigned int (*src_get_dirty)(void *blk);
+        unsigned int (*src_dirty_conj_mask)(void);
+        int (*src_mgr_get_ctrl_blk)(void **rblk);
+        int (*src_mgr_put_ctrl_blk)(void *blk);
+        /* syncly enable src @idx */
+        int (*src_mgr_enbs_src)(void *blk, unsigned int idx);
+        /* enable src @idx */
+        int (*src_mgr_enb_src)(void *blk, unsigned int idx);
+        /* disable src @idx */
+        int (*src_mgr_dsb_src)(void *blk, unsigned int idx);
+        int (*src_mgr_commit_write)(struct hw *hw, void *blk);
+        /* SRC Input Mapper operations */
+        int (*srcimp_mgr_get_ctrl_blk)(void **rblk);
+        int (*srcimp_mgr_put_ctrl_blk)(void *blk);
+        int (*srcimp_mgr_set_imaparc)(void *blk, unsigned int slot);
+        int (*srcimp_mgr_set_imapuser)(void *blk, unsigned int user);
+        int (*srcimp_mgr_set_imapnxt)(void *blk, unsigned int next);
+        int (*srcimp_mgr_set_imapaddr)(void *blk, unsigned int addr);
+        int (*srcimp_mgr_commit_write)(struct hw *hw, void *blk);
+        /* AMIXER operations */
+        int (*amixer_rsc_get_ctrl_blk)(void **rblk);
+        int (*amixer_rsc_put_ctrl_blk)(void *blk);
+        int (*amixer_mgr_get_ctrl_blk)(void **rblk);
+        int (*amixer_mgr_put_ctrl_blk)(void *blk);
+        int (*amixer_set_mode)(void *blk, unsigned int mode);
+        int (*amixer_set_iv)(void *blk, unsigned int iv);
+        int (*amixer_set_x)(void *blk, unsigned int x);
+        int (*amixer_set_y)(void *blk, unsigned int y);
+        int (*amixer_set_sadr)(void *blk, unsigned int sadr);
+        int (*amixer_set_se)(void *blk, unsigned int se);
+        int (*amixer_set_dirty)(void *blk, unsigned int flags);
+        int (*amixer_set_dirty_all)(void *blk);
+        int (*amixer_commit_write)(struct hw *hw, unsigned int idx, void *blk);
+        int (*amixer_get_y)(void *blk);
+        unsigned int (*amixer_get_dirty)(void *blk);
+        /* DAIO operations */
+        int (*dai_get_ctrl_blk)(void **rblk);
+        int (*dai_put_ctrl_blk)(void *blk);
+        int (*dai_srt_set_srco)(void *blk, unsigned int src);
+        int (*dai_srt_set_srcm)(void *blk, unsigned int src);
+        int (*dai_srt_set_rsr)(void *blk, unsigned int rsr);
+        int (*dai_srt_set_drat)(void *blk, unsigned int drat);
+        int (*dai_srt_set_ec)(void *blk, unsigned int ec);
+        int (*dai_srt_set_et)(void *blk, unsigned int et);
+        int (*dai_commit_write)(struct hw *hw, unsigned int idx, void *blk);
+        int (*dao_get_ctrl_blk)(void **rblk);
+        int (*dao_put_ctrl_blk)(void *blk);
+        int (*dao_set_spos)(void *blk, unsigned int spos);
+        int (*dao_commit_write)(struct hw *hw, unsigned int idx, void *blk);
+        int (*dao_get_spos)(void *blk, unsigned int *spos);
+        int (*daio_mgr_get_ctrl_blk)(struct hw *hw, void **rblk);
+        int (*daio_mgr_put_ctrl_blk)(void *blk);
+        int (*daio_mgr_enb_dai)(void *blk, unsigned int idx);
+        int (*daio_mgr_dsb_dai)(void *blk, unsigned int idx);
+        int (*daio_mgr_enb_dao)(void *blk, unsigned int idx);
+        int (*daio_mgr_dsb_dao)(void *blk, unsigned int idx);
+        int (*daio_mgr_dao_init)(void *blk, unsigned int idx,
+                                                unsigned int conf);
+        int (*daio_mgr_set_imaparc)(void *blk, unsigned int slot);
+        int (*daio_mgr_set_imapnxt)(void *blk, unsigned int next);
+        int (*daio_mgr_set_imapaddr)(void *blk, unsigned int addr);
+        int (*daio_mgr_commit_write)(struct hw *hw, void *blk);
+        int (*set_timer_irq)(struct hw *hw, int enable);
+        int (*set_timer_tick)(struct hw *hw, unsigned int tick);
+        unsigned int (*get_wc)(struct hw *hw);
+        void (*irq_callback)(void *data, unsigned int bit);
+        void *irq_callback_data;
+        struct pci_dev *pci;    /* the pci kernel structure of this card */
+        int irq;
+        unsigned long io_base;
+        unsigned long mem_base;
+        enum CHIPTYP chip_type;
+        enum CTCARDS model;
+};
+int create_hw_obj(struct pci_dev *pci, enum CHIPTYP chip_type,
+                  enum CTCARDS model, struct hw **rhw);
+int destroy_hw_obj(struct hw *hw);
+unsigned int get_field(unsigned int data, unsigned int field);
+void set_field(unsigned int *data, unsigned int field, unsigned int value);
+/* IRQ bits */
+#define PLL_INT         (1 << 10) /* PLL input-clock out-of-range */
+#define FI_INT          (1 << 9)  /* forced interrupt */
+#define IT_INT          (1 << 8)  /* timer interrupt */
+#define PCI_INT         (1 << 7)  /* PCI bus error pending */
+#define URT_INT         (1 << 6)  /* UART Tx/Rx */
+#define GPI_INT         (1 << 5)  /* GPI pin */
+#define MIX_INT         (1 << 4)  /* mixer parameter segment FIFO channels */
+#define DAI_INT         (1 << 3)  /* DAI (SR-tracker or SPDIF-receiver) */
+#define TP_INT          (1 << 2)  /* transport priority queue */
+#define DSP_INT         (1 << 1)  /* DSP */
+#define SRC_INT         (1 << 0)  /* SRC channels */
+#endif /* CTHARDWARE_H */
diff --git a/sound/pci/ctxfi/cthw20k1.c b/sound/pci/ctxfi/cthw20k1.c
new file mode 100644
index 000000000000..cb69d9ddfbe3
--- /dev/null
+++ b/sound/pci/ctxfi/cthw20k1.c
@@ -0,0 +1,2248 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File        cthw20k1.c
+ *
+ * @Brief
+ * This file contains the implementation of hardware access methord for 20k1.
+ *
+ * @Author      Liu Chun
+ * @Date        Jun 24 2008
+ *
+ */
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/io.h>
+#include <linux/string.h>
+#include <linux/spinlock.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include "cthw20k1.h"
+#include "ct20k1reg.h"
+#if BITS_PER_LONG == 32
+#define CT_XFI_DMA_MASK         DMA_BIT_MASK(32) /* 32 bit PTE */
+#else
+#define CT_XFI_DMA_MASK         DMA_BIT_MASK(64) /* 64 bit PTE */
+#endif
+struct hw20k1 {
+        struct hw hw;
+        spinlock_t reg_20k1_lock;
+        spinlock_t reg_pci_lock;
+};
+static u32 hw_read_20kx(struct hw *hw, u32 reg);
+static void hw_write_20kx(struct hw *hw, u32 reg, u32 data);
+static u32 hw_read_pci(struct hw *hw, u32 reg);
+static void hw_write_pci(struct hw *hw, u32 reg, u32 data);
+/*
+ * Type definition block.
+ * The layout of control structures can be directly applied on 20k2 chip.
+ */
+/*
+ * SRC control block definitions.
+ */
+/* SRC resource control block */
+#define SRCCTL_STATE    0x00000007
+#define SRCCTL_BM       0x00000008
+#define SRCCTL_RSR      0x00000030
+#define SRCCTL_SF       0x000001C0
+#define SRCCTL_WR       0x00000200
+#define SRCCTL_PM       0x00000400
+#define SRCCTL_ROM      0x00001800
+#define SRCCTL_VO       0x00002000
+#define SRCCTL_ST       0x00004000
+#define SRCCTL_IE       0x00008000
+#define SRCCTL_ILSZ     0x000F0000
+#define SRCCTL_BP       0x00100000
+#define SRCCCR_CISZ     0x000007FF
+#define SRCCCR_CWA      0x001FF800
+#define SRCCCR_D        0x00200000
+#define SRCCCR_RS       0x01C00000
+#define SRCCCR_NAL      0x3E000000
+#define SRCCCR_RA       0xC0000000
+#define SRCCA_CA        0x03FFFFFF
+#define SRCCA_RS        0x1C000000
+#define SRCCA_NAL       0xE0000000
+#define SRCSA_SA        0x03FFFFFF
+#define SRCLA_LA        0x03FFFFFF
+/* Mixer Parameter Ring ram Low and Hight register.
+ * Fixed-point value in 8.24 format for parameter channel */
+#define MPRLH_PITCH     0xFFFFFFFF
+/* SRC resource register dirty flags */
+union src_dirty {
+        struct {
+                u16 ctl:1;
+                u16 ccr:1;
+                u16 sa:1;
+                u16 la:1;
+                u16 ca:1;
+                u16 mpr:1;
+                u16 czbfs:1;    /* Clear Z-Buffers */
+                u16 rsv:9;
+        } bf;
+        u16 data;
+};
+struct src_rsc_ctrl_blk {
+        unsigned int    ctl;
+        unsigned int    ccr;
+        unsigned int    ca;
+        unsigned int    sa;
+        unsigned int    la;
+        unsigned int    mpr;
+        union src_dirty dirty;
+};
+/* SRC manager control block */
+union src_mgr_dirty {
+        struct {
+                u16 enb0:1;
+                u16 enb1:1;
+                u16 enb2:1;
+                u16 enb3:1;
+                u16 enb4:1;
+                u16 enb5:1;
+                u16 enb6:1;
+                u16 enb7:1;
+                u16 enbsa:1;
+                u16 rsv:7;
+        } bf;
+        u16 data;
+};
+struct src_mgr_ctrl_blk {
+        unsigned int            enbsa;
+        unsigned int            enb[8];
+        union src_mgr_dirty     dirty;
+};
+/* SRCIMP manager control block */
+#define SRCAIM_ARC      0x00000FFF
+#define SRCAIM_NXT      0x00FF0000
+#define SRCAIM_SRC      0xFF000000
+struct srcimap {
+        unsigned int srcaim;
+        unsigned int idx;
+};
+/* SRCIMP manager register dirty flags */
+union srcimp_mgr_dirty {
+        struct {
+                u16 srcimap:1;
+                u16 rsv:15;
+        } bf;
+        u16 data;
+};
+struct srcimp_mgr_ctrl_blk {
+        struct srcimap          srcimap;
+        union srcimp_mgr_dirty  dirty;
+};
+/*
+ * Function implementation block.
+ */
+static int src_get_rsc_ctrl_blk(void **rblk)
+{
+        struct src_rsc_ctrl_blk *blk;
+        *rblk = NULL;
+        blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+        if (NULL == blk)
+                return -ENOMEM;
+        *rblk = blk;
+        return 0;
+}
+static int src_put_rsc_ctrl_blk(void *blk)
+{
+        kfree((struct src_rsc_ctrl_blk *)blk);
+        return 0;
+}
+static int src_set_state(void *blk, unsigned int state)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ctl, SRCCTL_STATE, state);
+        ctl->dirty.bf.ctl = 1;
+        return 0;
+}
+static int src_set_bm(void *blk, unsigned int bm)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ctl, SRCCTL_BM, bm);
+        ctl->dirty.bf.ctl = 1;
+        return 0;
+}
+static int src_set_rsr(void *blk, unsigned int rsr)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ctl, SRCCTL_RSR, rsr);
+        ctl->dirty.bf.ctl = 1;
+        return 0;
+}
+static int src_set_sf(void *blk, unsigned int sf)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ctl, SRCCTL_SF, sf);
+        ctl->dirty.bf.ctl = 1;
+        return 0;
+}
+static int src_set_wr(void *blk, unsigned int wr)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ctl, SRCCTL_WR, wr);
+        ctl->dirty.bf.ctl = 1;
+        return 0;
+}
+static int src_set_pm(void *blk, unsigned int pm)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ctl, SRCCTL_PM, pm);
+        ctl->dirty.bf.ctl = 1;
+        return 0;
+}
+static int src_set_rom(void *blk, unsigned int rom)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ctl, SRCCTL_ROM, rom);
+        ctl->dirty.bf.ctl = 1;
+        return 0;
+}
+static int src_set_vo(void *blk, unsigned int vo)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ctl, SRCCTL_VO, vo);
+        ctl->dirty.bf.ctl = 1;
+        return 0;
+}
+static int src_set_st(void *blk, unsigned int st)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ctl, SRCCTL_ST, st);
+        ctl->dirty.bf.ctl = 1;
+        return 0;
+}
+static int src_set_ie(void *blk, unsigned int ie)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ctl, SRCCTL_IE, ie);
+        ctl->dirty.bf.ctl = 1;
+        return 0;
+}
+static int src_set_ilsz(void *blk, unsigned int ilsz)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ctl, SRCCTL_ILSZ, ilsz);
+        ctl->dirty.bf.ctl = 1;
+        return 0;
+}
+static int src_set_bp(void *blk, unsigned int bp)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ctl, SRCCTL_BP, bp);
+        ctl->dirty.bf.ctl = 1;
+        return 0;
+}
+static int src_set_cisz(void *blk, unsigned int cisz)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ccr, SRCCCR_CISZ, cisz);
+        ctl->dirty.bf.ccr = 1;
+        return 0;
+}
+static int src_set_ca(void *blk, unsigned int ca)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ca, SRCCA_CA, ca);
+        ctl->dirty.bf.ca = 1;
+        return 0;
+}
+static int src_set_sa(void *blk, unsigned int sa)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->sa, SRCSA_SA, sa);
+        ctl->dirty.bf.sa = 1;
+        return 0;
+}
+static int src_set_la(void *blk, unsigned int la)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->la, SRCLA_LA, la);
+        ctl->dirty.bf.la = 1;
+        return 0;
+}
+static int src_set_pitch(void *blk, unsigned int pitch)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->mpr, MPRLH_PITCH, pitch);
+        ctl->dirty.bf.mpr = 1;
+        return 0;
+}
+static int src_set_clear_zbufs(void *blk, unsigned int clear)
+{
+        ((struct src_rsc_ctrl_blk *)blk)->dirty.bf.czbfs = (clear ? 1 : 0);
+        return 0;
+}
+static int src_set_dirty(void *blk, unsigned int flags)
+{
+        ((struct src_rsc_ctrl_blk *)blk)->dirty.data = (flags & 0xffff);
+        return 0;
+}
+static int src_set_dirty_all(void *blk)
+{
+        ((struct src_rsc_ctrl_blk *)blk)->dirty.data = ~(0x0);
+        return 0;
+}
+#define AR_SLOT_SIZE            4096
+#define AR_SLOT_BLOCK_SIZE      16
+#define AR_PTS_PITCH            6
+#define AR_PARAM_SRC_OFFSET     0x60
+static unsigned int src_param_pitch_mixer(unsigned int src_idx)
+{
+        return ((src_idx << 4) + AR_PTS_PITCH + AR_SLOT_SIZE
+                        - AR_PARAM_SRC_OFFSET) % AR_SLOT_SIZE;
+}
+static int src_commit_write(struct hw *hw, unsigned int idx, void *blk)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        int i;
+        if (ctl->dirty.bf.czbfs) {
+                /* Clear Z-Buffer registers */
+                for (i = 0; i < 8; i++)
+                        hw_write_20kx(hw, SRCUPZ+idx*0x100+i*0x4, 0);
+                for (i = 0; i < 4; i++)
+                        hw_write_20kx(hw, SRCDN0Z+idx*0x100+i*0x4, 0);
+                for (i = 0; i < 8; i++)
+                        hw_write_20kx(hw, SRCDN1Z+idx*0x100+i*0x4, 0);
+                ctl->dirty.bf.czbfs = 0;
+        }
+        if (ctl->dirty.bf.mpr) {
+                /* Take the parameter mixer resource in the same group as that
+                 * the idx src is in for simplicity. Unlike src, all conjugate
+                 * parameter mixer resources must be programmed for
+                 * corresponding conjugate src resources. */
+                unsigned int pm_idx = src_param_pitch_mixer(idx);
+                hw_write_20kx(hw, PRING_LO_HI+4*pm_idx, ctl->mpr);
+                hw_write_20kx(hw, PMOPLO+8*pm_idx, 0x3);
+                hw_write_20kx(hw, PMOPHI+8*pm_idx, 0x0);
+                ctl->dirty.bf.mpr = 0;
+        }
+        if (ctl->dirty.bf.sa) {
+                hw_write_20kx(hw, SRCSA+idx*0x100, ctl->sa);
+                ctl->dirty.bf.sa = 0;
+        }
+        if (ctl->dirty.bf.la) {
+                hw_write_20kx(hw, SRCLA+idx*0x100, ctl->la);
+                ctl->dirty.bf.la = 0;
+        }
+        if (ctl->dirty.bf.ca) {
+                hw_write_20kx(hw, SRCCA+idx*0x100, ctl->ca);
+                ctl->dirty.bf.ca = 0;
+        }
+        /* Write srccf register */
+        hw_write_20kx(hw, SRCCF+idx*0x100, 0x0);
+        if (ctl->dirty.bf.ccr) {
+                hw_write_20kx(hw, SRCCCR+idx*0x100, ctl->ccr);
+                ctl->dirty.bf.ccr = 0;
+        }
+        if (ctl->dirty.bf.ctl) {
+                hw_write_20kx(hw, SRCCTL+idx*0x100, ctl->ctl);
+                ctl->dirty.bf.ctl = 0;
+        }
+        return 0;
+}
+static int src_get_ca(struct hw *hw, unsigned int idx, void *blk)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        ctl->ca = hw_read_20kx(hw, SRCCA+idx*0x100);
+        ctl->dirty.bf.ca = 0;
+        return get_field(ctl->ca, SRCCA_CA);
+}
+static unsigned int src_get_dirty(void *blk)
+{
+        return ((struct src_rsc_ctrl_blk *)blk)->dirty.data;
+}
+static unsigned int src_dirty_conj_mask(void)
+{
+        return 0x20;
+}
+static int src_mgr_enbs_src(void *blk, unsigned int idx)
+{
+        ((struct src_mgr_ctrl_blk *)blk)->enbsa = ~(0x0);
+        ((struct src_mgr_ctrl_blk *)blk)->dirty.bf.enbsa = 1;
+        ((struct src_mgr_ctrl_blk *)blk)->enb[idx/32] |= (0x1 << (idx%32));
+        return 0;
+}
+static int src_mgr_enb_src(void *blk, unsigned int idx)
+{
+        ((struct src_mgr_ctrl_blk *)blk)->enb[idx/32] |= (0x1 << (idx%32));
+        ((struct src_mgr_ctrl_blk *)blk)->dirty.data |= (0x1 << (idx/32));
+        return 0;
+}
+static int src_mgr_dsb_src(void *blk, unsigned int idx)
+{
+        ((struct src_mgr_ctrl_blk *)blk)->enb[idx/32] &= ~(0x1 << (idx%32));
+        ((struct src_mgr_ctrl_blk *)blk)->dirty.data |= (0x1 << (idx/32));
+        return 0;
+}
+static int src_mgr_commit_write(struct hw *hw, void *blk)
+{
+        struct src_mgr_ctrl_blk *ctl = blk;
+        int i;
+        unsigned int ret;
+        if (ctl->dirty.bf.enbsa) {
+                do {
+                        ret = hw_read_20kx(hw, SRCENBSTAT);
+                } while (ret & 0x1);
+                hw_write_20kx(hw, SRCENBS, ctl->enbsa);
+                ctl->dirty.bf.enbsa = 0;
+        }
+        for (i = 0; i < 8; i++) {
+                if ((ctl->dirty.data & (0x1 << i))) {
+                        hw_write_20kx(hw, SRCENB+(i*0x100), ctl->enb[i]);
+                        ctl->dirty.data &= ~(0x1 << i);
+                }
+        }
+        return 0;
+}
+static int src_mgr_get_ctrl_blk(void **rblk)
+{
+        struct src_mgr_ctrl_blk *blk;
+        *rblk = NULL;
+        blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+        if (NULL == blk)
+                return -ENOMEM;
+        *rblk = blk;
+        return 0;
+}
+static int src_mgr_put_ctrl_blk(void *blk)
+{
+        kfree((struct src_mgr_ctrl_blk *)blk);
+        return 0;
+}
+static int srcimp_mgr_get_ctrl_blk(void **rblk)
+{
+        struct srcimp_mgr_ctrl_blk *blk;
+        *rblk = NULL;
+        blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+        if (NULL == blk)
+                return -ENOMEM;
+        *rblk = blk;
+        return 0;
+}
+static int srcimp_mgr_put_ctrl_blk(void *blk)
+{
+        kfree((struct srcimp_mgr_ctrl_blk *)blk);
+        return 0;
+}
+static int srcimp_mgr_set_imaparc(void *blk, unsigned int slot)
+{
+        struct srcimp_mgr_ctrl_blk *ctl = blk;
+        set_field(&ctl->srcimap.srcaim, SRCAIM_ARC, slot);
+        ctl->dirty.bf.srcimap = 1;
+        return 0;
+}
+static int srcimp_mgr_set_imapuser(void *blk, unsigned int user)
+{
+        struct srcimp_mgr_ctrl_blk *ctl = blk;
+        set_field(&ctl->srcimap.srcaim, SRCAIM_SRC, user);
+        ctl->dirty.bf.srcimap = 1;
+        return 0;
+}
+static int srcimp_mgr_set_imapnxt(void *blk, unsigned int next)
+{
+        struct srcimp_mgr_ctrl_blk *ctl = blk;
+        set_field(&ctl->srcimap.srcaim, SRCAIM_NXT, next);
+        ctl->dirty.bf.srcimap = 1;
+        return 0;
+}
+static int srcimp_mgr_set_imapaddr(void *blk, unsigned int addr)
+{
+        struct srcimp_mgr_ctrl_blk *ctl = blk;
+        ctl->srcimap.idx = addr;
+        ctl->dirty.bf.srcimap = 1;
+        return 0;
+}
+static int srcimp_mgr_commit_write(struct hw *hw, void *blk)
+{
+        struct srcimp_mgr_ctrl_blk *ctl = blk;
+        if (ctl->dirty.bf.srcimap) {
+                hw_write_20kx(hw, SRCIMAP+ctl->srcimap.idx*0x100,
+                                                ctl->srcimap.srcaim);
+                ctl->dirty.bf.srcimap = 0;
+        }
+        return 0;
+}
+/*
+ * AMIXER control block definitions.
+ */
+#define AMOPLO_M        0x00000003
+#define AMOPLO_X        0x0003FFF0
+#define AMOPLO_Y        0xFFFC0000
+#define AMOPHI_SADR     0x000000FF
+#define AMOPHI_SE       0x80000000
+/* AMIXER resource register dirty flags */
+union amixer_dirty {
+        struct {
+                u16 amoplo:1;
+                u16 amophi:1;
+                u16 rsv:14;
+        } bf;
+        u16 data;
+};
+/* AMIXER resource control block */
+struct amixer_rsc_ctrl_blk {
+        unsigned int            amoplo;
+        unsigned int            amophi;
+        union amixer_dirty      dirty;
+};
+static int amixer_set_mode(void *blk, unsigned int mode)
+{
+        struct amixer_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->amoplo, AMOPLO_M, mode);
+        ctl->dirty.bf.amoplo = 1;
+        return 0;
+}
+static int amixer_set_iv(void *blk, unsigned int iv)
+{
+        /* 20k1 amixer does not have this field */
+        return 0;
+}
+static int amixer_set_x(void *blk, unsigned int x)
+{
+        struct amixer_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->amoplo, AMOPLO_X, x);
+        ctl->dirty.bf.amoplo = 1;
+        return 0;
+}
+static int amixer_set_y(void *blk, unsigned int y)
+{
+        struct amixer_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->amoplo, AMOPLO_Y, y);
+        ctl->dirty.bf.amoplo = 1;
+        return 0;
+}
+static int amixer_set_sadr(void *blk, unsigned int sadr)
+{
+        struct amixer_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->amophi, AMOPHI_SADR, sadr);
+        ctl->dirty.bf.amophi = 1;
+        return 0;
+}
+static int amixer_set_se(void *blk, unsigned int se)
+{
+        struct amixer_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->amophi, AMOPHI_SE, se);
+        ctl->dirty.bf.amophi = 1;
+        return 0;
+}
+static int amixer_set_dirty(void *blk, unsigned int flags)
+{
+        ((struct amixer_rsc_ctrl_blk *)blk)->dirty.data = (flags & 0xffff);
+        return 0;
+}
+static int amixer_set_dirty_all(void *blk)
+{
+        ((struct amixer_rsc_ctrl_blk *)blk)->dirty.data = ~(0x0);
+        return 0;
+}
+static int amixer_commit_write(struct hw *hw, unsigned int idx, void *blk)
+{
+        struct amixer_rsc_ctrl_blk *ctl = blk;
+        if (ctl->dirty.bf.amoplo || ctl->dirty.bf.amophi) {
+                hw_write_20kx(hw, AMOPLO+idx*8, ctl->amoplo);
+                ctl->dirty.bf.amoplo = 0;
+                hw_write_20kx(hw, AMOPHI+idx*8, ctl->amophi);
+                ctl->dirty.bf.amophi = 0;
+        }
+        return 0;
+}
+static int amixer_get_y(void *blk)
+{
+        struct amixer_rsc_ctrl_blk *ctl = blk;
+        return get_field(ctl->amoplo, AMOPLO_Y);
+}
+static unsigned int amixer_get_dirty(void *blk)
+{
+        return ((struct amixer_rsc_ctrl_blk *)blk)->dirty.data;
+}
+static int amixer_rsc_get_ctrl_blk(void **rblk)
+{
+        struct amixer_rsc_ctrl_blk *blk;
+        *rblk = NULL;
+        blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+        if (NULL == blk)
+                return -ENOMEM;
+        *rblk = blk;
+        return 0;
+}
+static int amixer_rsc_put_ctrl_blk(void *blk)
+{
+        kfree((struct amixer_rsc_ctrl_blk *)blk);
+        return 0;
+}
+static int amixer_mgr_get_ctrl_blk(void **rblk)
+{
+        /*amixer_mgr_ctrl_blk_t *blk;*/
+        *rblk = NULL;
+        /*blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+        if (NULL == blk)
+                return -ENOMEM;
+        *rblk = blk;*/
+        return 0;
+}
+static int amixer_mgr_put_ctrl_blk(void *blk)
+{
+        /*kfree((amixer_mgr_ctrl_blk_t *)blk);*/
+        return 0;
+}
+/*
+ * DAIO control block definitions.
+ */
+/* Receiver Sample Rate Tracker Control register */
+#define SRTCTL_SRCR     0x000000FF
+#define SRTCTL_SRCL     0x0000FF00
+#define SRTCTL_RSR      0x00030000
+#define SRTCTL_DRAT     0x000C0000
+#define SRTCTL_RLE      0x10000000
+#define SRTCTL_RLP      0x20000000
+#define SRTCTL_EC       0x40000000
+#define SRTCTL_ET       0x80000000
+/* DAIO Receiver register dirty flags */
+union dai_dirty {
+        struct {
+                u16 srtctl:1;
+                u16 rsv:15;
+        } bf;
+        u16 data;
+};
+/* DAIO Receiver control block */
+struct dai_ctrl_blk {
+        unsigned int    srtctl;
+        union dai_dirty dirty;
+};
+/* S/PDIF Transmitter register dirty flags */
+union dao_dirty {
+        struct {
+                u16 spos:1;
+                u16 rsv:15;
+        } bf;
+        u16 data;
+};
+/* S/PDIF Transmitter control block */
+struct dao_ctrl_blk {
+        unsigned int    spos; /* S/PDIF Output Channel Status Register */
+        union dao_dirty dirty;
+};
+/* Audio Input Mapper RAM */
+#define AIM_ARC         0x00000FFF
+#define AIM_NXT         0x007F0000
+struct daoimap {
+        unsigned int aim;
+        unsigned int idx;
+};
+/* I2S Transmitter/Receiver Control register */
+#define I2SCTL_EA       0x00000004
+#define I2SCTL_EI       0x00000010
+/* S/PDIF Transmitter Control register */
+#define SPOCTL_OE       0x00000001
+#define SPOCTL_OS       0x0000000E
+#define SPOCTL_RIV      0x00000010
+#define SPOCTL_LIV      0x00000020
+#define SPOCTL_SR       0x000000C0
+/* S/PDIF Receiver Control register */
+#define SPICTL_EN       0x00000001
+#define SPICTL_I24      0x00000002
+#define SPICTL_IB       0x00000004
+#define SPICTL_SM       0x00000008
+#define SPICTL_VM       0x00000010
+/* DAIO manager register dirty flags */
+union daio_mgr_dirty {
+        struct {
+                u32 i2soctl:4;
+                u32 i2sictl:4;
+                u32 spoctl:4;
+                u32 spictl:4;
+                u32 daoimap:1;
+                u32 rsv:15;
+        } bf;
+        u32 data;
+};
+/* DAIO manager control block */
+struct daio_mgr_ctrl_blk {
+        unsigned int            i2sctl;
+        unsigned int            spoctl;
+        unsigned int            spictl;
+        struct daoimap          daoimap;
+        union daio_mgr_dirty    dirty;
+};
+static int dai_srt_set_srcr(void *blk, unsigned int src)
+{
+        struct dai_ctrl_blk *ctl = blk;
+        set_field(&ctl->srtctl, SRTCTL_SRCR, src);
+        ctl->dirty.bf.srtctl = 1;
+        return 0;
+}
+static int dai_srt_set_srcl(void *blk, unsigned int src)
+{
+        struct dai_ctrl_blk *ctl = blk;
+        set_field(&ctl->srtctl, SRTCTL_SRCL, src);
+        ctl->dirty.bf.srtctl = 1;
+        return 0;
+}
+static int dai_srt_set_rsr(void *blk, unsigned int rsr)
+{
+        struct dai_ctrl_blk *ctl = blk;
+        set_field(&ctl->srtctl, SRTCTL_RSR, rsr);
+        ctl->dirty.bf.srtctl = 1;
+        return 0;
+}
+static int dai_srt_set_drat(void *blk, unsigned int drat)
+{
+        struct dai_ctrl_blk *ctl = blk;
+        set_field(&ctl->srtctl, SRTCTL_DRAT, drat);
+        ctl->dirty.bf.srtctl = 1;
+        return 0;
+}
+static int dai_srt_set_ec(void *blk, unsigned int ec)
+{
+        struct dai_ctrl_blk *ctl = blk;
+        set_field(&ctl->srtctl, SRTCTL_EC, ec ? 1 : 0);
+        ctl->dirty.bf.srtctl = 1;
+        return 0;
+}
+static int dai_srt_set_et(void *blk, unsigned int et)
+{
+        struct dai_ctrl_blk *ctl = blk;
+        set_field(&ctl->srtctl, SRTCTL_ET, et ? 1 : 0);
+        ctl->dirty.bf.srtctl = 1;
+        return 0;
+}
+static int dai_commit_write(struct hw *hw, unsigned int idx, void *blk)
+{
+        struct dai_ctrl_blk *ctl = blk;
+        if (ctl->dirty.bf.srtctl) {
+                if (idx < 4) {
+                        /* S/PDIF SRTs */
+                        hw_write_20kx(hw, SRTSCTL+0x4*idx, ctl->srtctl);
+                } else {
+                        /* I2S SRT */
+                        hw_write_20kx(hw, SRTICTL, ctl->srtctl);
+                }
+                ctl->dirty.bf.srtctl = 0;
+        }
+        return 0;
+}
+static int dai_get_ctrl_blk(void **rblk)
+{
+        struct dai_ctrl_blk *blk;
+        *rblk = NULL;
+        blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+        if (NULL == blk)
+                return -ENOMEM;
+        *rblk = blk;
+        return 0;
+}
+static int dai_put_ctrl_blk(void *blk)
+{
+        kfree((struct dai_ctrl_blk *)blk);
+        return 0;
+}
+static int dao_set_spos(void *blk, unsigned int spos)
+{
+        ((struct dao_ctrl_blk *)blk)->spos = spos;
+        ((struct dao_ctrl_blk *)blk)->dirty.bf.spos = 1;
+        return 0;
+}
+static int dao_commit_write(struct hw *hw, unsigned int idx, void *blk)
+{
+        struct dao_ctrl_blk *ctl = blk;
+        if (ctl->dirty.bf.spos) {
+                if (idx < 4) {
+                        /* S/PDIF SPOSx */
+                        hw_write_20kx(hw, SPOS+0x4*idx, ctl->spos);
+                }
+                ctl->dirty.bf.spos = 0;
+        }
+        return 0;
+}
+static int dao_get_spos(void *blk, unsigned int *spos)
+{
+        *spos = ((struct dao_ctrl_blk *)blk)->spos;
+        return 0;
+}
+static int dao_get_ctrl_blk(void **rblk)
+{
+        struct dao_ctrl_blk *blk;
+        *rblk = NULL;
+        blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+        if (NULL == blk)
+                return -ENOMEM;
+        *rblk = blk;
+        return 0;
+}
+static int dao_put_ctrl_blk(void *blk)
+{
+        kfree((struct dao_ctrl_blk *)blk);
+        return 0;
+}
+static int daio_mgr_enb_dai(void *blk, unsigned int idx)
+{
+        struct daio_mgr_ctrl_blk *ctl = blk;
+        if (idx < 4) {
+                /* S/PDIF input */
+                set_field(&ctl->spictl, SPICTL_EN << (idx*8), 1);
+                ctl->dirty.bf.spictl |= (0x1 << idx);
+        } else {
+                /* I2S input */
+                idx %= 4;
+                set_field(&ctl->i2sctl, I2SCTL_EI << (idx*8), 1);
+                ctl->dirty.bf.i2sictl |= (0x1 << idx);
+        }
+        return 0;
+}
+static int daio_mgr_dsb_dai(void *blk, unsigned int idx)
+{
+        struct daio_mgr_ctrl_blk *ctl = blk;
+        if (idx < 4) {
+                /* S/PDIF input */
+                set_field(&ctl->spictl, SPICTL_EN << (idx*8), 0);
+                ctl->dirty.bf.spictl |= (0x1 << idx);
+        } else {
+                /* I2S input */
+                idx %= 4;
+                set_field(&ctl->i2sctl, I2SCTL_EI << (idx*8), 0);
+                ctl->dirty.bf.i2sictl |= (0x1 << idx);
+        }
+        return 0;
+}
+static int daio_mgr_enb_dao(void *blk, unsigned int idx)
+{
+        struct daio_mgr_ctrl_blk *ctl = blk;
+        if (idx < 4) {
+                /* S/PDIF output */
+                set_field(&ctl->spoctl, SPOCTL_OE << (idx*8), 1);
+                ctl->dirty.bf.spoctl |= (0x1 << idx);
+        } else {
+                /* I2S output */
+                idx %= 4;
+                set_field(&ctl->i2sctl, I2SCTL_EA << (idx*8), 1);
+                ctl->dirty.bf.i2soctl |= (0x1 << idx);
+        }
+        return 0;
+}
+static int daio_mgr_dsb_dao(void *blk, unsigned int idx)
+{
+        struct daio_mgr_ctrl_blk *ctl = blk;
+        if (idx < 4) {
+                /* S/PDIF output */
+                set_field(&ctl->spoctl, SPOCTL_OE << (idx*8), 0);
+                ctl->dirty.bf.spoctl |= (0x1 << idx);
+        } else {
+                /* I2S output */
+                idx %= 4;
+                set_field(&ctl->i2sctl, I2SCTL_EA << (idx*8), 0);
+                ctl->dirty.bf.i2soctl |= (0x1 << idx);
+        }
+        return 0;
+}
+static int daio_mgr_dao_init(void *blk, unsigned int idx, unsigned int conf)
+{
+        struct daio_mgr_ctrl_blk *ctl = blk;
+        if (idx < 4) {
+                /* S/PDIF output */
+                switch ((conf & 0x7)) {
+                case 0:
+                        set_field(&ctl->spoctl, SPOCTL_SR << (idx*8), 3);
+                        break; /* CDIF */
+                case 1:
+                        set_field(&ctl->spoctl, SPOCTL_SR << (idx*8), 0);
+                        break;
+                case 2:
+                        set_field(&ctl->spoctl, SPOCTL_SR << (idx*8), 1);
+                        break;
+                case 4:
+                        set_field(&ctl->spoctl, SPOCTL_SR << (idx*8), 2);
+                        break;
+                default:
+                        break;
+                }
+                set_field(&ctl->spoctl, SPOCTL_LIV << (idx*8),
+                          (conf >> 4) & 0x1); /* Non-audio */
+                set_field(&ctl->spoctl, SPOCTL_RIV << (idx*8),
+                          (conf >> 4) & 0x1); /* Non-audio */
+                set_field(&ctl->spoctl, SPOCTL_OS << (idx*8),
+                          ((conf >> 3) & 0x1) ? 2 : 2); /* Raw */
+                ctl->dirty.bf.spoctl |= (0x1 << idx);
+        } else {
+                /* I2S output */
+                /*idx %= 4; */
+        }
+        return 0;
+}
+static int daio_mgr_set_imaparc(void *blk, unsigned int slot)
+{
+        struct daio_mgr_ctrl_blk *ctl = blk;
+        set_field(&ctl->daoimap.aim, AIM_ARC, slot);
+        ctl->dirty.bf.daoimap = 1;
+        return 0;
+}
+static int daio_mgr_set_imapnxt(void *blk, unsigned int next)
+{
+        struct daio_mgr_ctrl_blk *ctl = blk;
+        set_field(&ctl->daoimap.aim, AIM_NXT, next);
+        ctl->dirty.bf.daoimap = 1;
+        return 0;
+}
+static int daio_mgr_set_imapaddr(void *blk, unsigned int addr)
+{
+        struct daio_mgr_ctrl_blk *ctl = blk;
+        ctl->daoimap.idx = addr;
+        ctl->dirty.bf.daoimap = 1;
+        return 0;
+}
+static int daio_mgr_commit_write(struct hw *hw, void *blk)
+{
+        struct daio_mgr_ctrl_blk *ctl = blk;
+        int i;
+        if (ctl->dirty.bf.i2sictl || ctl->dirty.bf.i2soctl) {
+                for (i = 0; i < 4; i++) {
+                        if ((ctl->dirty.bf.i2sictl & (0x1 << i)))
+                                ctl->dirty.bf.i2sictl &= ~(0x1 << i);
+                        if ((ctl->dirty.bf.i2soctl & (0x1 << i)))
+                                ctl->dirty.bf.i2soctl &= ~(0x1 << i);
+                }
+                hw_write_20kx(hw, I2SCTL, ctl->i2sctl);
+                mdelay(1);
+        }
+        if (ctl->dirty.bf.spoctl) {
+                for (i = 0; i < 4; i++) {
+                        if ((ctl->dirty.bf.spoctl & (0x1 << i)))
+                                ctl->dirty.bf.spoctl &= ~(0x1 << i);
+                }
+                hw_write_20kx(hw, SPOCTL, ctl->spoctl);
+                mdelay(1);
+        }
+        if (ctl->dirty.bf.spictl) {
+                for (i = 0; i < 4; i++) {
+                        if ((ctl->dirty.bf.spictl & (0x1 << i)))
+                                ctl->dirty.bf.spictl &= ~(0x1 << i);
+                }
+                hw_write_20kx(hw, SPICTL, ctl->spictl);
+                mdelay(1);
+        }
+        if (ctl->dirty.bf.daoimap) {
+                hw_write_20kx(hw, DAOIMAP+ctl->daoimap.idx*4,
+                                        ctl->daoimap.aim);
+                ctl->dirty.bf.daoimap = 0;
+        }
+        return 0;
+}
+static int daio_mgr_get_ctrl_blk(struct hw *hw, void **rblk)
+{
+        struct daio_mgr_ctrl_blk *blk;
+        *rblk = NULL;
+        blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+        if (NULL == blk)
+                return -ENOMEM;
+        blk->i2sctl = hw_read_20kx(hw, I2SCTL);
+        blk->spoctl = hw_read_20kx(hw, SPOCTL);
+        blk->spictl = hw_read_20kx(hw, SPICTL);
+        *rblk = blk;
+        return 0;
+}
+static int daio_mgr_put_ctrl_blk(void *blk)
+{
+        kfree((struct daio_mgr_ctrl_blk *)blk);
+        return 0;
+}
+/* Timer interrupt */
+static int set_timer_irq(struct hw *hw, int enable)
+{
+        hw_write_20kx(hw, GIE, enable ? IT_INT : 0);
+        return 0;
+}
+static int set_timer_tick(struct hw *hw, unsigned int ticks)
+{
+        if (ticks)
+                ticks |= TIMR_IE | TIMR_IP;
+        hw_write_20kx(hw, TIMR, ticks);
+        return 0;
+}
+static unsigned int get_wc(struct hw *hw)
+{
+        return hw_read_20kx(hw, WC);
+}
+/* Card hardware initialization block */
+struct dac_conf {
+        unsigned int msr; /* master sample rate in rsrs */
+};
+struct adc_conf {
+        unsigned int msr;       /* master sample rate in rsrs */
+        unsigned char input;    /* the input source of ADC */
+        unsigned char mic20db;  /* boost mic by 20db if input is microphone */
+};
+struct daio_conf {
+        unsigned int msr; /* master sample rate in rsrs */
+};
+struct trn_conf {
+        unsigned long vm_pgt_phys;
+};
+static int hw_daio_init(struct hw *hw, const struct daio_conf *info)
+{
+        u32 i2sorg;
+        u32 spdorg;
+        /* Read I2S CTL.  Keep original value. */
+        /*i2sorg = hw_read_20kx(hw, I2SCTL);*/
+        i2sorg = 0x94040404; /* enable all audio out and I2S-D input */
+        /* Program I2S with proper master sample rate and enable
+         * the correct I2S channel. */
+        i2sorg &= 0xfffffffc;
+        /* Enable S/PDIF-out-A in fixed 24-bit data
+         * format and default to 48kHz. */
+        /* Disable all before doing any changes. */
+        hw_write_20kx(hw, SPOCTL, 0x0);
+        spdorg = 0x05;
+        switch (info->msr) {
+        case 1:
+                i2sorg |= 1;
+                spdorg |= (0x0 << 6);
+                break;
+        case 2:
+                i2sorg |= 2;
+                spdorg |= (0x1 << 6);
+                break;
+        case 4:
+                i2sorg |= 3;
+                spdorg |= (0x2 << 6);
+                break;
+        default:
+                i2sorg |= 1;
+                break;
+        }
+        hw_write_20kx(hw, I2SCTL, i2sorg);
+        hw_write_20kx(hw, SPOCTL, spdorg);
+        /* Enable S/PDIF-in-A in fixed 24-bit data format. */
+        /* Disable all before doing any changes. */
+        hw_write_20kx(hw, SPICTL, 0x0);
+        mdelay(1);
+        spdorg = 0x0a0a0a0a;
+        hw_write_20kx(hw, SPICTL, spdorg);
+        mdelay(1);
+        return 0;
+}
+/* TRANSPORT operations */
+static int hw_trn_init(struct hw *hw, const struct trn_conf *info)
+{
+        u32 trnctl;
+        u32 ptp_phys_low, ptp_phys_high;
+        /* Set up device page table */
+        if ((~0UL) == info->vm_pgt_phys) {
+                printk(KERN_ERR "Wrong device page table page address!\n");
+                return -1;
+        }
+        trnctl = 0x13;  /* 32-bit, 4k-size page */
+        ptp_phys_low = (u32)info->vm_pgt_phys;
+        ptp_phys_high = upper_32_bits(info->vm_pgt_phys);
+        if (sizeof(void *) == 8) /* 64bit address */
+                trnctl |= (1 << 2);
+#if 0 /* Only 4k h/w pages for simplicitiy */
+#if PAGE_SIZE == 8192
+        trnctl |= (1<<5);
+#endif
+#endif
+        hw_write_20kx(hw, PTPALX, ptp_phys_low);
+        hw_write_20kx(hw, PTPAHX, ptp_phys_high);
+        hw_write_20kx(hw, TRNCTL, trnctl);
+        hw_write_20kx(hw, TRNIS, 0x200c01); /* realy needed? */
+        return 0;
+}
+/* Card initialization */
+#define GCTL_EAC        0x00000001
+#define GCTL_EAI        0x00000002
+#define GCTL_BEP        0x00000004
+#define GCTL_BES        0x00000008
+#define GCTL_DSP        0x00000010
+#define GCTL_DBP        0x00000020
+#define GCTL_ABP        0x00000040
+#define GCTL_TBP        0x00000080
+#define GCTL_SBP        0x00000100
+#define GCTL_FBP        0x00000200
+#define GCTL_XA         0x00000400
+#define GCTL_ET         0x00000800
+#define GCTL_PR         0x00001000
+#define GCTL_MRL        0x00002000
+#define GCTL_SDE        0x00004000
+#define GCTL_SDI        0x00008000
+#define GCTL_SM         0x00010000
+#define GCTL_SR         0x00020000
+#define GCTL_SD         0x00040000
+#define GCTL_SE         0x00080000
+#define GCTL_AID        0x00100000
+static int hw_pll_init(struct hw *hw, unsigned int rsr)
+{
+        unsigned int pllctl;
+        int i;
+        pllctl = (48000 == rsr) ? 0x1480a001 : 0x1480a731;
+        for (i = 0; i < 3; i++) {
+                if (hw_read_20kx(hw, PLLCTL) == pllctl)
+                        break;
+                hw_write_20kx(hw, PLLCTL, pllctl);
+                mdelay(40);
+        }
+        if (i >= 3) {
+                printk(KERN_ALERT "PLL initialization failed!!!\n");
+                return -EBUSY;
+        }
+        return 0;
+}
+static int hw_auto_init(struct hw *hw)
+{
+        unsigned int gctl;
+        int i;
+        gctl = hw_read_20kx(hw, GCTL);
+        set_field(&gctl, GCTL_EAI, 0);
+        hw_write_20kx(hw, GCTL, gctl);
+        set_field(&gctl, GCTL_EAI, 1);
+        hw_write_20kx(hw, GCTL, gctl);
+        mdelay(10);
+        for (i = 0; i < 400000; i++) {
+                gctl = hw_read_20kx(hw, GCTL);
+                if (get_field(gctl, GCTL_AID))
+                        break;
+        }
+        if (!get_field(gctl, GCTL_AID)) {
+                printk(KERN_ALERT "Card Auto-init failed!!!\n");
+                return -EBUSY;
+        }
+        return 0;
+}
+static int i2c_unlock(struct hw *hw)
+{
+        if ((hw_read_pci(hw, 0xcc) & 0xff) == 0xaa)
+                return 0;
+        hw_write_pci(hw, 0xcc, 0x8c);
+        hw_write_pci(hw, 0xcc, 0x0e);
+        if ((hw_read_pci(hw, 0xcc) & 0xff) == 0xaa)
+                return 0;
+        hw_write_pci(hw, 0xcc, 0xee);
+        hw_write_pci(hw, 0xcc, 0xaa);
+        if ((hw_read_pci(hw, 0xcc) & 0xff) == 0xaa)
+                return 0;
+        return -1;
+}
+static void i2c_lock(struct hw *hw)
+{
+        if ((hw_read_pci(hw, 0xcc) & 0xff) == 0xaa)
+                hw_write_pci(hw, 0xcc, 0x00);
+}
+static void i2c_write(struct hw *hw, u32 device, u32 addr, u32 data)
+{
+        unsigned int ret;
+        do {
+                ret = hw_read_pci(hw, 0xEC);
+        } while (!(ret & 0x800000));
+        hw_write_pci(hw, 0xE0, device);
+        hw_write_pci(hw, 0xE4, (data << 8) | (addr & 0xff));
+}
+/* DAC operations */
+static int hw_reset_dac(struct hw *hw)
+{
+        u32 i;
+        u16 gpioorg;
+        unsigned int ret;
+        if (i2c_unlock(hw))
+                return -1;
+        do {
+                ret = hw_read_pci(hw, 0xEC);
+        } while (!(ret & 0x800000));
+        hw_write_pci(hw, 0xEC, 0x05);  /* write to i2c status control */
+        /* To be effective, need to reset the DAC twice. */
+        for (i = 0; i < 2;  i++) {
+                /* set gpio */
+                mdelay(100);
+                gpioorg = (u16)hw_read_20kx(hw, GPIO);
+                gpioorg &= 0xfffd;
+                hw_write_20kx(hw, GPIO, gpioorg);
+                mdelay(1);
+                hw_write_20kx(hw, GPIO, gpioorg | 0x2);
+        }
+        i2c_write(hw, 0x00180080, 0x01, 0x80);
+        i2c_write(hw, 0x00180080, 0x02, 0x10);
+        i2c_lock(hw);
+        return 0;
+}
+static int hw_dac_init(struct hw *hw, const struct dac_conf *info)
+{
+        u32 data;
+        u16 gpioorg;
+        unsigned int ret;
+        if (hw->model == CTSB055X) {
+                /* SB055x, unmute outputs */
+                gpioorg = (u16)hw_read_20kx(hw, GPIO);
+                gpioorg &= 0xffbf;      /* set GPIO6 to low */
+                gpioorg |= 2;           /* set GPIO1 to high */
+                hw_write_20kx(hw, GPIO, gpioorg);
+                return 0;
+        }
+        /* mute outputs */
+        gpioorg = (u16)hw_read_20kx(hw, GPIO);
+        gpioorg &= 0xffbf;
+        hw_write_20kx(hw, GPIO, gpioorg);
+        hw_reset_dac(hw);
+        if (i2c_unlock(hw))
+                return -1;
+        hw_write_pci(hw, 0xEC, 0x05);  /* write to i2c status control */
+        do {
+                ret = hw_read_pci(hw, 0xEC);
+        } while (!(ret & 0x800000));
+        switch (info->msr) {
+        case 1:
+                data = 0x24;
+                break;
+        case 2:
+                data = 0x25;
+                break;
+        case 4:
+                data = 0x26;
+                break;
+        default:
+                data = 0x24;
+                break;
+        }
+        i2c_write(hw, 0x00180080, 0x06, data);
+        i2c_write(hw, 0x00180080, 0x09, data);
+        i2c_write(hw, 0x00180080, 0x0c, data);
+        i2c_write(hw, 0x00180080, 0x0f, data);
+        i2c_lock(hw);
+        /* unmute outputs */
+        gpioorg = (u16)hw_read_20kx(hw, GPIO);
+        gpioorg = gpioorg | 0x40;
+        hw_write_20kx(hw, GPIO, gpioorg);
+        return 0;
+}
+/* ADC operations */
+static int is_adc_input_selected_SB055x(struct hw *hw, enum ADCSRC type)
+{
+        return 0;
+}
+static int is_adc_input_selected_SBx(struct hw *hw, enum ADCSRC type)
+{
+        u32 data;
+        data = hw_read_20kx(hw, GPIO);
+        switch (type) {
+        case ADC_MICIN:
+                data = ((data & (0x1<<7)) && (data & (0x1<<8)));
+                break;
+        case ADC_LINEIN:
+                data = (!(data & (0x1<<7)) && (data & (0x1<<8)));
+                break;
+        case ADC_NONE: /* Digital I/O */
+                data = (!(data & (0x1<<8)));
+                break;
+        default:
+                data = 0;
+        }
+        return data;
+}
+static int is_adc_input_selected_hendrix(struct hw *hw, enum ADCSRC type)
+{
+        u32 data;
+        data = hw_read_20kx(hw, GPIO);
+        switch (type) {
+        case ADC_MICIN:
+                data = (data & (0x1 << 7)) ? 1 : 0;
+                break;
+        case ADC_LINEIN:
+                data = (data & (0x1 << 7)) ? 0 : 1;
+                break;
+        default:
+                data = 0;
+        }
+        return data;
+}
+static int hw_is_adc_input_selected(struct hw *hw, enum ADCSRC type)
+{
+        switch (hw->model) {
+        case CTSB055X:
+                return is_adc_input_selected_SB055x(hw, type);
+        case CTSB073X:
+                return is_adc_input_selected_hendrix(hw, type);
+        case CTUAA:
+                return is_adc_input_selected_hendrix(hw, type);
+        default:
+                return is_adc_input_selected_SBx(hw, type);
+        }
+}
+static int
+adc_input_select_SB055x(struct hw *hw, enum ADCSRC type, unsigned char boost)
+{
+        u32 data;
+        /*
+         * check and set the following GPIO bits accordingly
+         * ADC_Gain             = GPIO2
+         * DRM_off              = GPIO3
+         * Mic_Pwr_on           = GPIO7
+         * Digital_IO_Sel       = GPIO8
+         * Mic_Sw               = GPIO9
+         * Aux/MicLine_Sw       = GPIO12
+         */
+        data = hw_read_20kx(hw, GPIO);
+        data &= 0xec73;
+        switch (type) {
+        case ADC_MICIN:
+                data |= (0x1<<7) | (0x1<<8) | (0x1<<9) ;
+                data |= boost ? (0x1<<2) : 0;
+                break;
+        case ADC_LINEIN:
+                data |= (0x1<<8);
+                break;
+        case ADC_AUX:
+                data |= (0x1<<8) | (0x1<<12);
+                break;
+        case ADC_NONE:
+                data |= (0x1<<12);  /* set to digital */
+                break;
+        default:
+                return -1;
+        }
+        hw_write_20kx(hw, GPIO, data);
+        return 0;
+}
+static int
+adc_input_select_SBx(struct hw *hw, enum ADCSRC type, unsigned char boost)
+{
+        u32 data;
+        u32 i2c_data;
+        unsigned int ret;
+        if (i2c_unlock(hw))
+                return -1;
+        do {
+                ret = hw_read_pci(hw, 0xEC);
+        } while (!(ret & 0x800000)); /* i2c ready poll */
+        /* set i2c access mode as Direct Control */
+        hw_write_pci(hw, 0xEC, 0x05);
+        data = hw_read_20kx(hw, GPIO);
+        switch (type) {
+        case ADC_MICIN:
+                data |= ((0x1 << 7) | (0x1 << 8));
+                i2c_data = 0x1;  /* Mic-in */
+                break;
+        case ADC_LINEIN:
+                data &= ~(0x1 << 7);
+                data |= (0x1 << 8);
+                i2c_data = 0x2; /* Line-in */
+                break;
+        case ADC_NONE:
+                data &= ~(0x1 << 8);
+                i2c_data = 0x0; /* set to Digital */
+                break;
+        default:
+                i2c_lock(hw);
+                return -1;
+        }
+        hw_write_20kx(hw, GPIO, data);
+        i2c_write(hw, 0x001a0080, 0x2a, i2c_data);
+        if (boost) {
+                i2c_write(hw, 0x001a0080, 0x1c, 0xe7); /* +12dB boost */
+                i2c_write(hw, 0x001a0080, 0x1e, 0xe7); /* +12dB boost */
+        } else {
+                i2c_write(hw, 0x001a0080, 0x1c, 0xcf); /* No boost */
+                i2c_write(hw, 0x001a0080, 0x1e, 0xcf); /* No boost */
+        }
+        i2c_lock(hw);
+        return 0;
+}
+static int
+adc_input_select_hendrix(struct hw *hw, enum ADCSRC type, unsigned char boost)
+{
+        u32 data;
+        u32 i2c_data;
+        unsigned int ret;
+        if (i2c_unlock(hw))
+                return -1;
+        do {
+                ret = hw_read_pci(hw, 0xEC);
+        } while (!(ret & 0x800000)); /* i2c ready poll */
+        /* set i2c access mode as Direct Control */
+        hw_write_pci(hw, 0xEC, 0x05);
+        data = hw_read_20kx(hw, GPIO);
+        switch (type) {
+        case ADC_MICIN:
+                data |= (0x1 << 7);
+                i2c_data = 0x1;  /* Mic-in */
+                break;
+        case ADC_LINEIN:
+                data &= ~(0x1 << 7);
+                i2c_data = 0x2; /* Line-in */
+                break;
+        default:
+                i2c_lock(hw);
+                return -1;
+        }
+        hw_write_20kx(hw, GPIO, data);
+        i2c_write(hw, 0x001a0080, 0x2a, i2c_data);
+        if (boost) {
+                i2c_write(hw, 0x001a0080, 0x1c, 0xe7); /* +12dB boost */
+                i2c_write(hw, 0x001a0080, 0x1e, 0xe7); /* +12dB boost */
+        } else {
+                i2c_write(hw, 0x001a0080, 0x1c, 0xcf); /* No boost */
+                i2c_write(hw, 0x001a0080, 0x1e, 0xcf); /* No boost */
+        }
+        i2c_lock(hw);
+        return 0;
+}
+static int hw_adc_input_select(struct hw *hw, enum ADCSRC type)
+{
+        int state = type == ADC_MICIN;
+        switch (hw->model) {
+        case CTSB055X:
+                return adc_input_select_SB055x(hw, type, state);
+        case CTSB073X:
+                return adc_input_select_hendrix(hw, type, state);
+        case CTUAA:
+                return adc_input_select_hendrix(hw, type, state);
+        default:
+                return adc_input_select_SBx(hw, type, state);
+        }
+}
+static int adc_init_SB055x(struct hw *hw, int input, int mic20db)
+{
+        return adc_input_select_SB055x(hw, input, mic20db);
+}
+static int adc_init_SBx(struct hw *hw, int input, int mic20db)
+{
+        u16 gpioorg;
+        u16 input_source;
+        u32 adcdata;
+        unsigned int ret;
+        input_source = 0x100;  /* default to analog */
+        switch (input) {
+        case ADC_MICIN:
+                adcdata = 0x1;
+                input_source = 0x180;  /* set GPIO7 to select Mic */
+                break;
+        case ADC_LINEIN:
+                adcdata = 0x2;
+                break;
+        case ADC_VIDEO:
+                adcdata = 0x4;
+                break;
+        case ADC_AUX:
+                adcdata = 0x8;
+                break;
+        case ADC_NONE:
+                adcdata = 0x0;
+                input_source = 0x0;  /* set to Digital */
+                break;
+        default:
+                adcdata = 0x0;
+                break;
+        }
+        if (i2c_unlock(hw))
+                return -1;
+        do {
+                ret = hw_read_pci(hw, 0xEC);
+        } while (!(ret & 0x800000)); /* i2c ready poll */
+        hw_write_pci(hw, 0xEC, 0x05);  /* write to i2c status control */
+        i2c_write(hw, 0x001a0080, 0x0e, 0x08);
+        i2c_write(hw, 0x001a0080, 0x18, 0x0a);
+        i2c_write(hw, 0x001a0080, 0x28, 0x86);
+        i2c_write(hw, 0x001a0080, 0x2a, adcdata);
+        if (mic20db) {
+                i2c_write(hw, 0x001a0080, 0x1c, 0xf7);
+                i2c_write(hw, 0x001a0080, 0x1e, 0xf7);
+        } else {
+                i2c_write(hw, 0x001a0080, 0x1c, 0xcf);
+                i2c_write(hw, 0x001a0080, 0x1e, 0xcf);
+        }
+        if (!(hw_read_20kx(hw, ID0) & 0x100))
+                i2c_write(hw, 0x001a0080, 0x16, 0x26);
+        i2c_lock(hw);
+        gpioorg = (u16)hw_read_20kx(hw,  GPIO);
+        gpioorg &= 0xfe7f;
+        gpioorg |= input_source;
+        hw_write_20kx(hw, GPIO, gpioorg);
+        return 0;
+}
+static int hw_adc_init(struct hw *hw, const struct adc_conf *info)
+{
+        if (hw->model == CTSB055X)
+                return adc_init_SB055x(hw, info->input, info->mic20db);
+        else
+                return adc_init_SBx(hw, info->input, info->mic20db);
+}
+static int hw_have_digit_io_switch(struct hw *hw)
+{
+        /* SB073x and Vista compatible cards have no digit IO switch */
+        return !(hw->model == CTSB073X || hw->model == CTUAA);
+}
+#define CTLBITS(a, b, c, d)     (((a) << 24) | ((b) << 16) | ((c) << 8) | (d))
+#define UAA_CFG_PWRSTATUS       0x44
+#define UAA_CFG_SPACE_FLAG      0xA0
+#define UAA_CORE_CHANGE         0x3FFC
+static int uaa_to_xfi(struct pci_dev *pci)
+{
+        unsigned int bar0, bar1, bar2, bar3, bar4, bar5;
+        unsigned int cmd, irq, cl_size, l_timer, pwr;
+        unsigned int is_uaa;
+        unsigned int data[4] = {0};
+        unsigned int io_base;
+        void *mem_base;
+        int i;
+        const u32 CTLX = CTLBITS('C', 'T', 'L', 'X');
+        const u32 CTL_ = CTLBITS('C', 'T', 'L', '-');
+        const u32 CTLF = CTLBITS('C', 'T', 'L', 'F');
+        const u32 CTLi = CTLBITS('C', 'T', 'L', 'i');
+        const u32 CTLA = CTLBITS('C', 'T', 'L', 'A');
+        const u32 CTLZ = CTLBITS('C', 'T', 'L', 'Z');
+        const u32 CTLL = CTLBITS('C', 'T', 'L', 'L');
+        /* By default, Hendrix card UAA Bar0 should be using memory... */
+        io_base = pci_resource_start(pci, 0);
+        mem_base = ioremap(io_base, pci_resource_len(pci, 0));
+        if (NULL == mem_base)
+                return -ENOENT;
+        /* Read current mode from Mode Change Register */
+        for (i = 0; i < 4; i++)
+                data[i] = readl(mem_base + UAA_CORE_CHANGE);
+        /* Determine current mode... */
+        if (data[0] == CTLA) {
+                is_uaa = ((data[1] == CTLZ && data[2] == CTLL
+                          && data[3] == CTLA) || (data[1] == CTLA
+                          && data[2] == CTLZ && data[3] == CTLL));
+        } else if (data[0] == CTLZ) {
+                is_uaa = (data[1] == CTLL
+                                && data[2] == CTLA && data[3] == CTLA);
+        } else if (data[0] == CTLL) {
+                is_uaa = (data[1] == CTLA
+                                && data[2] == CTLA && data[3] == CTLZ);
+        } else {
+                is_uaa = 0;
+        }
+        if (!is_uaa) {
+                /* Not in UAA mode currently. Return directly. */
+                iounmap(mem_base);
+                return 0;
+        }
+        pci_read_config_dword(pci, PCI_BASE_ADDRESS_0, &bar0);
+        pci_read_config_dword(pci, PCI_BASE_ADDRESS_1, &bar1);
+        pci_read_config_dword(pci, PCI_BASE_ADDRESS_2, &bar2);
+        pci_read_config_dword(pci, PCI_BASE_ADDRESS_3, &bar3);
+        pci_read_config_dword(pci, PCI_BASE_ADDRESS_4, &bar4);
+        pci_read_config_dword(pci, PCI_BASE_ADDRESS_5, &bar5);
+        pci_read_config_dword(pci, PCI_INTERRUPT_LINE, &irq);
+        pci_read_config_dword(pci, PCI_CACHE_LINE_SIZE, &cl_size);
+        pci_read_config_dword(pci, PCI_LATENCY_TIMER, &l_timer);
+        pci_read_config_dword(pci, UAA_CFG_PWRSTATUS, &pwr);
+        pci_read_config_dword(pci, PCI_COMMAND, &cmd);
+        /* Set up X-Fi core PCI configuration space. */
+        /* Switch to X-Fi config space with BAR0 exposed. */
+        pci_write_config_dword(pci, UAA_CFG_SPACE_FLAG, 0x87654321);
+        /* Copy UAA's BAR5 into X-Fi BAR0 */
+        pci_write_config_dword(pci, PCI_BASE_ADDRESS_0, bar5);
+        /* Switch to X-Fi config space without BAR0 exposed. */
+        pci_write_config_dword(pci, UAA_CFG_SPACE_FLAG, 0x12345678);
+        pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, bar1);
+        pci_write_config_dword(pci, PCI_BASE_ADDRESS_2, bar2);
+        pci_write_config_dword(pci, PCI_BASE_ADDRESS_3, bar3);
+        pci_write_config_dword(pci, PCI_BASE_ADDRESS_4, bar4);
+        pci_write_config_dword(pci, PCI_INTERRUPT_LINE, irq);
+        pci_write_config_dword(pci, PCI_CACHE_LINE_SIZE, cl_size);
+        pci_write_config_dword(pci, PCI_LATENCY_TIMER, l_timer);
+        pci_write_config_dword(pci, UAA_CFG_PWRSTATUS, pwr);
+        pci_write_config_dword(pci, PCI_COMMAND, cmd);
+        /* Switch to X-Fi mode */
+        writel(CTLX, (mem_base + UAA_CORE_CHANGE));
+        writel(CTL_, (mem_base + UAA_CORE_CHANGE));
+        writel(CTLF, (mem_base + UAA_CORE_CHANGE));
+        writel(CTLi, (mem_base + UAA_CORE_CHANGE));
+        iounmap(mem_base);
+        return 0;
+}
+static irqreturn_t ct_20k1_interrupt(int irq, void *dev_id)
+{
+        struct hw *hw = dev_id;
+        unsigned int status;
+        status = hw_read_20kx(hw, GIP);
+        if (!status)
+                return IRQ_NONE;
+        if (hw->irq_callback)
+                hw->irq_callback(hw->irq_callback_data, status);
+        hw_write_20kx(hw, GIP, status);
+        return IRQ_HANDLED;
+}
+static int hw_card_start(struct hw *hw)
+{
+        int err;
+        struct pci_dev *pci = hw->pci;
+        err = pci_enable_device(pci);
+        if (err < 0)
+                return err;
+        /* Set DMA transfer mask */
+        if (pci_set_dma_mask(pci, CT_XFI_DMA_MASK) < 0 ||
+            pci_set_consistent_dma_mask(pci, CT_XFI_DMA_MASK) < 0) {
+                printk(KERN_ERR "architecture does not support PCI "
+                                "busmaster DMA with mask 0x%llx\n",
+                       CT_XFI_DMA_MASK);
+                err = -ENXIO;
+                goto error1;
+        }
+        err = pci_request_regions(pci, "XFi");
+        if (err < 0)
+                goto error1;
+        /* Switch to X-Fi mode from UAA mode if neeeded */
+        if (hw->model == CTUAA) {
+                err = uaa_to_xfi(pci);
+                if (err)
+                        goto error2;
+                hw->io_base = pci_resource_start(pci, 5);
+        } else {
+                hw->io_base = pci_resource_start(pci, 0);
+        }
+        err = request_irq(pci->irq, ct_20k1_interrupt, IRQF_SHARED,
+                          "ctxfi", hw);
+        if (err < 0) {
+                printk(KERN_ERR "XFi: Cannot get irq %d\n", pci->irq);
+                goto error2;
+        }
+        hw->irq = pci->irq;
+        pci_set_master(pci);
+        return 0;
+error2:
+        pci_release_regions(pci);
+        hw->io_base = 0;
+error1:
+        pci_disable_device(pci);
+        return err;
+}
+static int hw_card_stop(struct hw *hw)
+{
+        /* TODO: Disable interrupt and so on... */
+        if (hw->irq >= 0)
+                synchronize_irq(hw->irq);
+        return 0;
+}
+static int hw_card_shutdown(struct hw *hw)
+{
+        if (hw->irq >= 0)
+                free_irq(hw->irq, hw);
+        hw->irq = -1;
+        if (NULL != ((void *)hw->mem_base))
+                iounmap((void *)hw->mem_base);
+        hw->mem_base = (unsigned long)NULL;
+        if (hw->io_base)
+                pci_release_regions(hw->pci);
+        hw->io_base = 0;
+        pci_disable_device(hw->pci);
+        return 0;
+}
+static int hw_card_init(struct hw *hw, struct card_conf *info)
+{
+        int err;
+        unsigned int gctl;
+        u32 data;
+        struct dac_conf dac_info = {0};
+        struct adc_conf adc_info = {0};
+        struct daio_conf daio_info = {0};
+        struct trn_conf trn_info = {0};
+        /* Get PCI io port base address and do Hendrix switch if needed. */
+        if (!hw->io_base) {
+                err = hw_card_start(hw);
+                if (err)
+                        return err;
+        }
+        /* PLL init */
+        err = hw_pll_init(hw, info->rsr);
+        if (err < 0)
+                return err;
+        /* kick off auto-init */
+        err = hw_auto_init(hw);
+        if (err < 0)
+                return err;
+        /* Enable audio ring */
+        gctl = hw_read_20kx(hw, GCTL);
+        set_field(&gctl, GCTL_EAC, 1);
+        set_field(&gctl, GCTL_DBP, 1);
+        set_field(&gctl, GCTL_TBP, 1);
+        set_field(&gctl, GCTL_FBP, 1);
+        set_field(&gctl, GCTL_ET, 1);
+        hw_write_20kx(hw, GCTL, gctl);
+        mdelay(10);
+        /* Reset all global pending interrupts */
+        hw_write_20kx(hw, GIE, 0);
+        /* Reset all SRC pending interrupts */
+        hw_write_20kx(hw, SRCIP, 0);
+        mdelay(30);
+        /* Detect the card ID and configure GPIO accordingly. */
+        switch (hw->model) {
+        case CTSB055X:
+                hw_write_20kx(hw, GPIOCTL, 0x13fe);
+                break;
+        case CTSB073X:
+                hw_write_20kx(hw, GPIOCTL, 0x00e6);
+                break;
+        case CTUAA:
+                hw_write_20kx(hw, GPIOCTL, 0x00c2);
+                break;
+        default:
+                hw_write_20kx(hw, GPIOCTL, 0x01e6);
+                break;
+        }
+        trn_info.vm_pgt_phys = info->vm_pgt_phys;
+        err = hw_trn_init(hw, &trn_info);
+        if (err < 0)
+                return err;
+        daio_info.msr = info->msr;
+        err = hw_daio_init(hw, &daio_info);
+        if (err < 0)
+                return err;
+        dac_info.msr = info->msr;
+        err = hw_dac_init(hw, &dac_info);
+        if (err < 0)
+                return err;
+        adc_info.msr = info->msr;
+        adc_info.input = ADC_LINEIN;
+        adc_info.mic20db = 0;
+        err = hw_adc_init(hw, &adc_info);
+        if (err < 0)
+                return err;
+        data = hw_read_20kx(hw, SRCMCTL);
+        data |= 0x1; /* Enables input from the audio ring */
+        hw_write_20kx(hw, SRCMCTL, data);
+        return 0;
+}
+static u32 hw_read_20kx(struct hw *hw, u32 reg)
+{
+        u32 value;
+        unsigned long flags;
+        spin_lock_irqsave(
+                &container_of(hw, struct hw20k1, hw)->reg_20k1_lock, flags);
+        outl(reg, hw->io_base + 0x0);
+        value = inl(hw->io_base + 0x4);
+        spin_unlock_irqrestore(
+                &container_of(hw, struct hw20k1, hw)->reg_20k1_lock, flags);
+        return value;
+}
+static void hw_write_20kx(struct hw *hw, u32 reg, u32 data)
+{
+        unsigned long flags;
+        spin_lock_irqsave(
+                &container_of(hw, struct hw20k1, hw)->reg_20k1_lock, flags);
+        outl(reg, hw->io_base + 0x0);
+        outl(data, hw->io_base + 0x4);
+        spin_unlock_irqrestore(
+                &container_of(hw, struct hw20k1, hw)->reg_20k1_lock, flags);
+}
+static u32 hw_read_pci(struct hw *hw, u32 reg)
+{
+        u32 value;
+        unsigned long flags;
+        spin_lock_irqsave(
+                &container_of(hw, struct hw20k1, hw)->reg_pci_lock, flags);
+        outl(reg, hw->io_base + 0x10);
+        value = inl(hw->io_base + 0x14);
+        spin_unlock_irqrestore(
+                &container_of(hw, struct hw20k1, hw)->reg_pci_lock, flags);
+        return value;
+}
+static void hw_write_pci(struct hw *hw, u32 reg, u32 data)
+{
+        unsigned long flags;
+        spin_lock_irqsave(
+                &container_of(hw, struct hw20k1, hw)->reg_pci_lock, flags);
+        outl(reg, hw->io_base + 0x10);
+        outl(data, hw->io_base + 0x14);
+        spin_unlock_irqrestore(
+                &container_of(hw, struct hw20k1, hw)->reg_pci_lock, flags);
+}
+static struct hw ct20k1_preset __devinitdata = {
+        .irq = -1,
+        .card_init = hw_card_init,
+        .card_stop = hw_card_stop,
+        .pll_init = hw_pll_init,
+        .is_adc_source_selected = hw_is_adc_input_selected,
+        .select_adc_source = hw_adc_input_select,
+        .have_digit_io_switch = hw_have_digit_io_switch,
+        .src_rsc_get_ctrl_blk = src_get_rsc_ctrl_blk,
+        .src_rsc_put_ctrl_blk = src_put_rsc_ctrl_blk,
+        .src_mgr_get_ctrl_blk = src_mgr_get_ctrl_blk,
+        .src_mgr_put_ctrl_blk = src_mgr_put_ctrl_blk,
+        .src_set_state = src_set_state,
+        .src_set_bm = src_set_bm,
+        .src_set_rsr = src_set_rsr,
+        .src_set_sf = src_set_sf,
+        .src_set_wr = src_set_wr,
+        .src_set_pm = src_set_pm,
+        .src_set_rom = src_set_rom,
+        .src_set_vo = src_set_vo,
+        .src_set_st = src_set_st,
+        .src_set_ie = src_set_ie,
+        .src_set_ilsz = src_set_ilsz,
+        .src_set_bp = src_set_bp,
+        .src_set_cisz = src_set_cisz,
+        .src_set_ca = src_set_ca,
+        .src_set_sa = src_set_sa,
+        .src_set_la = src_set_la,
+        .src_set_pitch = src_set_pitch,
+        .src_set_dirty = src_set_dirty,
+        .src_set_clear_zbufs = src_set_clear_zbufs,
+        .src_set_dirty_all = src_set_dirty_all,
+        .src_commit_write = src_commit_write,
+        .src_get_ca = src_get_ca,
+        .src_get_dirty = src_get_dirty,
+        .src_dirty_conj_mask = src_dirty_conj_mask,
+        .src_mgr_enbs_src = src_mgr_enbs_src,
+        .src_mgr_enb_src = src_mgr_enb_src,
+        .src_mgr_dsb_src = src_mgr_dsb_src,
+        .src_mgr_commit_write = src_mgr_commit_write,
+        .srcimp_mgr_get_ctrl_blk = srcimp_mgr_get_ctrl_blk,
+        .srcimp_mgr_put_ctrl_blk = srcimp_mgr_put_ctrl_blk,
+        .srcimp_mgr_set_imaparc = srcimp_mgr_set_imaparc,
+        .srcimp_mgr_set_imapuser = srcimp_mgr_set_imapuser,
+        .srcimp_mgr_set_imapnxt = srcimp_mgr_set_imapnxt,
+        .srcimp_mgr_set_imapaddr = srcimp_mgr_set_imapaddr,
+        .srcimp_mgr_commit_write = srcimp_mgr_commit_write,
+        .amixer_rsc_get_ctrl_blk = amixer_rsc_get_ctrl_blk,
+        .amixer_rsc_put_ctrl_blk = amixer_rsc_put_ctrl_blk,
+        .amixer_mgr_get_ctrl_blk = amixer_mgr_get_ctrl_blk,
+        .amixer_mgr_put_ctrl_blk = amixer_mgr_put_ctrl_blk,
+        .amixer_set_mode = amixer_set_mode,
+        .amixer_set_iv = amixer_set_iv,
+        .amixer_set_x = amixer_set_x,
+        .amixer_set_y = amixer_set_y,
+        .amixer_set_sadr = amixer_set_sadr,
+        .amixer_set_se = amixer_set_se,
+        .amixer_set_dirty = amixer_set_dirty,
+        .amixer_set_dirty_all = amixer_set_dirty_all,
+        .amixer_commit_write = amixer_commit_write,
+        .amixer_get_y = amixer_get_y,
+        .amixer_get_dirty = amixer_get_dirty,
+        .dai_get_ctrl_blk = dai_get_ctrl_blk,
+        .dai_put_ctrl_blk = dai_put_ctrl_blk,
+        .dai_srt_set_srco = dai_srt_set_srcr,
+        .dai_srt_set_srcm = dai_srt_set_srcl,
+        .dai_srt_set_rsr = dai_srt_set_rsr,
+        .dai_srt_set_drat = dai_srt_set_drat,
+        .dai_srt_set_ec = dai_srt_set_ec,
+        .dai_srt_set_et = dai_srt_set_et,
+        .dai_commit_write = dai_commit_write,
+        .dao_get_ctrl_blk = dao_get_ctrl_blk,
+        .dao_put_ctrl_blk = dao_put_ctrl_blk,
+        .dao_set_spos = dao_set_spos,
+        .dao_commit_write = dao_commit_write,
+        .dao_get_spos = dao_get_spos,
+        .daio_mgr_get_ctrl_blk = daio_mgr_get_ctrl_blk,
+        .daio_mgr_put_ctrl_blk = daio_mgr_put_ctrl_blk,
+        .daio_mgr_enb_dai = daio_mgr_enb_dai,
+        .daio_mgr_dsb_dai = daio_mgr_dsb_dai,
+        .daio_mgr_enb_dao = daio_mgr_enb_dao,
+        .daio_mgr_dsb_dao = daio_mgr_dsb_dao,
+        .daio_mgr_dao_init = daio_mgr_dao_init,
+        .daio_mgr_set_imaparc = daio_mgr_set_imaparc,
+        .daio_mgr_set_imapnxt = daio_mgr_set_imapnxt,
+        .daio_mgr_set_imapaddr = daio_mgr_set_imapaddr,
+        .daio_mgr_commit_write = daio_mgr_commit_write,
+        .set_timer_irq = set_timer_irq,
+        .set_timer_tick = set_timer_tick,
+        .get_wc = get_wc,
+};
+int __devinit create_20k1_hw_obj(struct hw **rhw)
+{
+        struct hw20k1 *hw20k1;
+        *rhw = NULL;
+        hw20k1 = kzalloc(sizeof(*hw20k1), GFP_KERNEL);
+        if (NULL == hw20k1)
+                return -ENOMEM;
+        spin_lock_init(&hw20k1->reg_20k1_lock);
+        spin_lock_init(&hw20k1->reg_pci_lock);
+        hw20k1->hw = ct20k1_preset;
+        *rhw = &hw20k1->hw;
+        return 0;
+}
+int destroy_20k1_hw_obj(struct hw *hw)
+{
+        if (hw->io_base)
+                hw_card_shutdown(hw);
+        kfree(container_of(hw, struct hw20k1, hw));
+        return 0;
+}
diff --git a/sound/pci/ctxfi/cthw20k1.h b/sound/pci/ctxfi/cthw20k1.h
new file mode 100644
index 000000000000..02f72fb448a6
--- /dev/null
+++ b/sound/pci/ctxfi/cthw20k1.h
@@ -0,0 +1,26 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File        cthw20k1.h
+ *
+ * @Brief
+ * This file contains the definition of hardware access methord.
+ *
+ * @Author      Liu Chun
+ * @Date        May 13 2008
+ *
+ */
+#ifndef CTHW20K1_H
+#define CTHW20K1_H
+#include "cthardware.h"
+int create_20k1_hw_obj(struct hw **rhw);
+int destroy_20k1_hw_obj(struct hw *hw);
+#endif /* CTHW20K1_H */
diff --git a/sound/pci/ctxfi/cthw20k2.c b/sound/pci/ctxfi/cthw20k2.c
new file mode 100644
index 000000000000..4493a51c6b01
--- /dev/null
+++ b/sound/pci/ctxfi/cthw20k2.c
@@ -0,0 +1,2137 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File        cthw20k2.c
+ *
+ * @Brief
+ * This file contains the implementation of hardware access methord for 20k2.
+ *
+ * @Author      Liu Chun
+ * @Date        May 14 2008
+ *
+ */
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/io.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include "cthw20k2.h"
+#include "ct20k2reg.h"
+#if BITS_PER_LONG == 32
+#define CT_XFI_DMA_MASK         DMA_BIT_MASK(32) /* 32 bit PTE */
+#else
+#define CT_XFI_DMA_MASK         DMA_BIT_MASK(64) /* 64 bit PTE */
+#endif
+struct hw20k2 {
+        struct hw hw;
+        /* for i2c */
+        unsigned char dev_id;
+        unsigned char addr_size;
+        unsigned char data_size;
+};
+static u32 hw_read_20kx(struct hw *hw, u32 reg);
+static void hw_write_20kx(struct hw *hw, u32 reg, u32 data);
+/*
+ * Type definition block.
+ * The layout of control structures can be directly applied on 20k2 chip.
+ */
+/*
+ * SRC control block definitions.
+ */
+/* SRC resource control block */
+#define SRCCTL_STATE    0x00000007
+#define SRCCTL_BM       0x00000008
+#define SRCCTL_RSR      0x00000030
+#define SRCCTL_SF       0x000001C0
+#define SRCCTL_WR       0x00000200
+#define SRCCTL_PM       0x00000400
+#define SRCCTL_ROM      0x00001800
+#define SRCCTL_VO       0x00002000
+#define SRCCTL_ST       0x00004000
+#define SRCCTL_IE       0x00008000
+#define SRCCTL_ILSZ     0x000F0000
+#define SRCCTL_BP       0x00100000
+#define SRCCCR_CISZ     0x000007FF
+#define SRCCCR_CWA      0x001FF800
+#define SRCCCR_D        0x00200000
+#define SRCCCR_RS       0x01C00000
+#define SRCCCR_NAL      0x3E000000
+#define SRCCCR_RA       0xC0000000
+#define SRCCA_CA        0x0FFFFFFF
+#define SRCCA_RS        0xE0000000
+#define SRCSA_SA        0x0FFFFFFF
+#define SRCLA_LA        0x0FFFFFFF
+/* Mixer Parameter Ring ram Low and Hight register.
+ * Fixed-point value in 8.24 format for parameter channel */
+#define MPRLH_PITCH     0xFFFFFFFF
+/* SRC resource register dirty flags */
+union src_dirty {
+        struct {
+                u16 ctl:1;
+                u16 ccr:1;
+                u16 sa:1;
+                u16 la:1;
+                u16 ca:1;
+                u16 mpr:1;
+                u16 czbfs:1;    /* Clear Z-Buffers */
+                u16 rsv:9;
+        } bf;
+        u16 data;
+};
+struct src_rsc_ctrl_blk {
+        unsigned int    ctl;
+        unsigned int    ccr;
+        unsigned int    ca;
+        unsigned int    sa;
+        unsigned int    la;
+        unsigned int    mpr;
+        union src_dirty dirty;
+};
+/* SRC manager control block */
+union src_mgr_dirty {
+        struct {
+                u16 enb0:1;
+                u16 enb1:1;
+                u16 enb2:1;
+                u16 enb3:1;
+                u16 enb4:1;
+                u16 enb5:1;
+                u16 enb6:1;
+                u16 enb7:1;
+                u16 enbsa:1;
+                u16 rsv:7;
+        } bf;
+        u16 data;
+};
+struct src_mgr_ctrl_blk {
+        unsigned int            enbsa;
+        unsigned int            enb[8];
+        union src_mgr_dirty     dirty;
+};
+/* SRCIMP manager control block */
+#define SRCAIM_ARC      0x00000FFF
+#define SRCAIM_NXT      0x00FF0000
+#define SRCAIM_SRC      0xFF000000
+struct srcimap {
+        unsigned int srcaim;
+        unsigned int idx;
+};
+/* SRCIMP manager register dirty flags */
+union srcimp_mgr_dirty {
+        struct {
+                u16 srcimap:1;
+                u16 rsv:15;
+        } bf;
+        u16 data;
+};
+struct srcimp_mgr_ctrl_blk {
+        struct srcimap          srcimap;
+        union srcimp_mgr_dirty  dirty;
+};
+/*
+ * Function implementation block.
+ */
+static int src_get_rsc_ctrl_blk(void **rblk)
+{
+        struct src_rsc_ctrl_blk *blk;
+        *rblk = NULL;
+        blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+        if (NULL == blk)
+                return -ENOMEM;
+        *rblk = blk;
+        return 0;
+}
+static int src_put_rsc_ctrl_blk(void *blk)
+{
+        kfree(blk);
+        return 0;
+}
+static int src_set_state(void *blk, unsigned int state)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ctl, SRCCTL_STATE, state);
+        ctl->dirty.bf.ctl = 1;
+        return 0;
+}
+static int src_set_bm(void *blk, unsigned int bm)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ctl, SRCCTL_BM, bm);
+        ctl->dirty.bf.ctl = 1;
+        return 0;
+}
+static int src_set_rsr(void *blk, unsigned int rsr)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ctl, SRCCTL_RSR, rsr);
+        ctl->dirty.bf.ctl = 1;
+        return 0;
+}
+static int src_set_sf(void *blk, unsigned int sf)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ctl, SRCCTL_SF, sf);
+        ctl->dirty.bf.ctl = 1;
+        return 0;
+}
+static int src_set_wr(void *blk, unsigned int wr)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ctl, SRCCTL_WR, wr);
+        ctl->dirty.bf.ctl = 1;
+        return 0;
+}
+static int src_set_pm(void *blk, unsigned int pm)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ctl, SRCCTL_PM, pm);
+        ctl->dirty.bf.ctl = 1;
+        return 0;
+}
+static int src_set_rom(void *blk, unsigned int rom)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ctl, SRCCTL_ROM, rom);
+        ctl->dirty.bf.ctl = 1;
+        return 0;
+}
+static int src_set_vo(void *blk, unsigned int vo)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ctl, SRCCTL_VO, vo);
+        ctl->dirty.bf.ctl = 1;
+        return 0;
+}
+static int src_set_st(void *blk, unsigned int st)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ctl, SRCCTL_ST, st);
+        ctl->dirty.bf.ctl = 1;
+        return 0;
+}
+static int src_set_ie(void *blk, unsigned int ie)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ctl, SRCCTL_IE, ie);
+        ctl->dirty.bf.ctl = 1;
+        return 0;
+}
+static int src_set_ilsz(void *blk, unsigned int ilsz)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ctl, SRCCTL_ILSZ, ilsz);
+        ctl->dirty.bf.ctl = 1;
+        return 0;
+}
+static int src_set_bp(void *blk, unsigned int bp)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ctl, SRCCTL_BP, bp);
+        ctl->dirty.bf.ctl = 1;
+        return 0;
+}
+static int src_set_cisz(void *blk, unsigned int cisz)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ccr, SRCCCR_CISZ, cisz);
+        ctl->dirty.bf.ccr = 1;
+        return 0;
+}
+static int src_set_ca(void *blk, unsigned int ca)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->ca, SRCCA_CA, ca);
+        ctl->dirty.bf.ca = 1;
+        return 0;
+}
+static int src_set_sa(void *blk, unsigned int sa)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->sa, SRCSA_SA, sa);
+        ctl->dirty.bf.sa = 1;
+        return 0;
+}
+static int src_set_la(void *blk, unsigned int la)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->la, SRCLA_LA, la);
+        ctl->dirty.bf.la = 1;
+        return 0;
+}
+static int src_set_pitch(void *blk, unsigned int pitch)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->mpr, MPRLH_PITCH, pitch);
+        ctl->dirty.bf.mpr = 1;
+        return 0;
+}
+static int src_set_clear_zbufs(void *blk, unsigned int clear)
+{
+        ((struct src_rsc_ctrl_blk *)blk)->dirty.bf.czbfs = (clear ? 1 : 0);
+        return 0;
+}
+static int src_set_dirty(void *blk, unsigned int flags)
+{
+        ((struct src_rsc_ctrl_blk *)blk)->dirty.data = (flags & 0xffff);
+        return 0;
+}
+static int src_set_dirty_all(void *blk)
+{
+        ((struct src_rsc_ctrl_blk *)blk)->dirty.data = ~(0x0);
+        return 0;
+}
+#define AR_SLOT_SIZE            4096
+#define AR_SLOT_BLOCK_SIZE      16
+#define AR_PTS_PITCH            6
+#define AR_PARAM_SRC_OFFSET     0x60
+static unsigned int src_param_pitch_mixer(unsigned int src_idx)
+{
+        return ((src_idx << 4) + AR_PTS_PITCH + AR_SLOT_SIZE
+                        - AR_PARAM_SRC_OFFSET) % AR_SLOT_SIZE;
+}
+static int src_commit_write(struct hw *hw, unsigned int idx, void *blk)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        int i;
+        if (ctl->dirty.bf.czbfs) {
+                /* Clear Z-Buffer registers */
+                for (i = 0; i < 8; i++)
+                        hw_write_20kx(hw, SRC_UPZ+idx*0x100+i*0x4, 0);
+                for (i = 0; i < 4; i++)
+                        hw_write_20kx(hw, SRC_DN0Z+idx*0x100+i*0x4, 0);
+                for (i = 0; i < 8; i++)
+                        hw_write_20kx(hw, SRC_DN1Z+idx*0x100+i*0x4, 0);
+                ctl->dirty.bf.czbfs = 0;
+        }
+        if (ctl->dirty.bf.mpr) {
+                /* Take the parameter mixer resource in the same group as that
+                 * the idx src is in for simplicity. Unlike src, all conjugate
+                 * parameter mixer resources must be programmed for
+                 * corresponding conjugate src resources. */
+                unsigned int pm_idx = src_param_pitch_mixer(idx);
+                hw_write_20kx(hw, MIXER_PRING_LO_HI+4*pm_idx, ctl->mpr);
+                hw_write_20kx(hw, MIXER_PMOPLO+8*pm_idx, 0x3);
+                hw_write_20kx(hw, MIXER_PMOPHI+8*pm_idx, 0x0);
+                ctl->dirty.bf.mpr = 0;
+        }
+        if (ctl->dirty.bf.sa) {
+                hw_write_20kx(hw, SRC_SA+idx*0x100, ctl->sa);
+                ctl->dirty.bf.sa = 0;
+        }
+        if (ctl->dirty.bf.la) {
+                hw_write_20kx(hw, SRC_LA+idx*0x100, ctl->la);
+                ctl->dirty.bf.la = 0;
+        }
+        if (ctl->dirty.bf.ca) {
+                hw_write_20kx(hw, SRC_CA+idx*0x100, ctl->ca);
+                ctl->dirty.bf.ca = 0;
+        }
+        /* Write srccf register */
+        hw_write_20kx(hw, SRC_CF+idx*0x100, 0x0);
+        if (ctl->dirty.bf.ccr) {
+                hw_write_20kx(hw, SRC_CCR+idx*0x100, ctl->ccr);
+                ctl->dirty.bf.ccr = 0;
+        }
+        if (ctl->dirty.bf.ctl) {
+                hw_write_20kx(hw, SRC_CTL+idx*0x100, ctl->ctl);
+                ctl->dirty.bf.ctl = 0;
+        }
+        return 0;
+}
+static int src_get_ca(struct hw *hw, unsigned int idx, void *blk)
+{
+        struct src_rsc_ctrl_blk *ctl = blk;
+        ctl->ca = hw_read_20kx(hw, SRC_CA+idx*0x100);
+        ctl->dirty.bf.ca = 0;
+        return get_field(ctl->ca, SRCCA_CA);
+}
+static unsigned int src_get_dirty(void *blk)
+{
+        return ((struct src_rsc_ctrl_blk *)blk)->dirty.data;
+}
+static unsigned int src_dirty_conj_mask(void)
+{
+        return 0x20;
+}
+static int src_mgr_enbs_src(void *blk, unsigned int idx)
+{
+        ((struct src_mgr_ctrl_blk *)blk)->enbsa |= (0x1 << ((idx%128)/4));
+        ((struct src_mgr_ctrl_blk *)blk)->dirty.bf.enbsa = 1;
+        ((struct src_mgr_ctrl_blk *)blk)->enb[idx/32] |= (0x1 << (idx%32));
+        return 0;
+}
+static int src_mgr_enb_src(void *blk, unsigned int idx)
+{
+        ((struct src_mgr_ctrl_blk *)blk)->enb[idx/32] |= (0x1 << (idx%32));
+        ((struct src_mgr_ctrl_blk *)blk)->dirty.data |= (0x1 << (idx/32));
+        return 0;
+}
+static int src_mgr_dsb_src(void *blk, unsigned int idx)
+{
+        ((struct src_mgr_ctrl_blk *)blk)->enb[idx/32] &= ~(0x1 << (idx%32));
+        ((struct src_mgr_ctrl_blk *)blk)->dirty.data |= (0x1 << (idx/32));
+        return 0;
+}
+static int src_mgr_commit_write(struct hw *hw, void *blk)
+{
+        struct src_mgr_ctrl_blk *ctl = blk;
+        int i;
+        unsigned int ret;
+        if (ctl->dirty.bf.enbsa) {
+                do {
+                        ret = hw_read_20kx(hw, SRC_ENBSTAT);
+                } while (ret & 0x1);
+                hw_write_20kx(hw, SRC_ENBSA, ctl->enbsa);
+                ctl->dirty.bf.enbsa = 0;
+        }
+        for (i = 0; i < 8; i++) {
+                if ((ctl->dirty.data & (0x1 << i))) {
+                        hw_write_20kx(hw, SRC_ENB+(i*0x100), ctl->enb[i]);
+                        ctl->dirty.data &= ~(0x1 << i);
+                }
+        }
+        return 0;
+}
+static int src_mgr_get_ctrl_blk(void **rblk)
+{
+        struct src_mgr_ctrl_blk *blk;
+        *rblk = NULL;
+        blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+        if (NULL == blk)
+                return -ENOMEM;
+        *rblk = blk;
+        return 0;
+}
+static int src_mgr_put_ctrl_blk(void *blk)
+{
+        kfree(blk);
+        return 0;
+}
+static int srcimp_mgr_get_ctrl_blk(void **rblk)
+{
+        struct srcimp_mgr_ctrl_blk *blk;
+        *rblk = NULL;
+        blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+        if (NULL == blk)
+                return -ENOMEM;
+        *rblk = blk;
+        return 0;
+}
+static int srcimp_mgr_put_ctrl_blk(void *blk)
+{
+        kfree(blk);
+        return 0;
+}
+static int srcimp_mgr_set_imaparc(void *blk, unsigned int slot)
+{
+        struct srcimp_mgr_ctrl_blk *ctl = blk;
+        set_field(&ctl->srcimap.srcaim, SRCAIM_ARC, slot);
+        ctl->dirty.bf.srcimap = 1;
+        return 0;
+}
+static int srcimp_mgr_set_imapuser(void *blk, unsigned int user)
+{
+        struct srcimp_mgr_ctrl_blk *ctl = blk;
+        set_field(&ctl->srcimap.srcaim, SRCAIM_SRC, user);
+        ctl->dirty.bf.srcimap = 1;
+        return 0;
+}
+static int srcimp_mgr_set_imapnxt(void *blk, unsigned int next)
+{
+        struct srcimp_mgr_ctrl_blk *ctl = blk;
+        set_field(&ctl->srcimap.srcaim, SRCAIM_NXT, next);
+        ctl->dirty.bf.srcimap = 1;
+        return 0;
+}
+static int srcimp_mgr_set_imapaddr(void *blk, unsigned int addr)
+{
+        ((struct srcimp_mgr_ctrl_blk *)blk)->srcimap.idx = addr;
+        ((struct srcimp_mgr_ctrl_blk *)blk)->dirty.bf.srcimap = 1;
+        return 0;
+}
+static int srcimp_mgr_commit_write(struct hw *hw, void *blk)
+{
+        struct srcimp_mgr_ctrl_blk *ctl = blk;
+        if (ctl->dirty.bf.srcimap) {
+                hw_write_20kx(hw, SRC_IMAP+ctl->srcimap.idx*0x100,
+                                                ctl->srcimap.srcaim);
+                ctl->dirty.bf.srcimap = 0;
+        }
+        return 0;
+}
+/*
+ * AMIXER control block definitions.
+ */
+#define AMOPLO_M        0x00000003
+#define AMOPLO_IV       0x00000004
+#define AMOPLO_X        0x0003FFF0
+#define AMOPLO_Y        0xFFFC0000
+#define AMOPHI_SADR     0x000000FF
+#define AMOPHI_SE       0x80000000
+/* AMIXER resource register dirty flags */
+union amixer_dirty {
+        struct {
+                u16 amoplo:1;
+                u16 amophi:1;
+                u16 rsv:14;
+        } bf;
+        u16 data;
+};
+/* AMIXER resource control block */
+struct amixer_rsc_ctrl_blk {
+        unsigned int            amoplo;
+        unsigned int            amophi;
+        union amixer_dirty      dirty;
+};
+static int amixer_set_mode(void *blk, unsigned int mode)
+{
+        struct amixer_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->amoplo, AMOPLO_M, mode);
+        ctl->dirty.bf.amoplo = 1;
+        return 0;
+}
+static int amixer_set_iv(void *blk, unsigned int iv)
+{
+        struct amixer_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->amoplo, AMOPLO_IV, iv);
+        ctl->dirty.bf.amoplo = 1;
+        return 0;
+}
+static int amixer_set_x(void *blk, unsigned int x)
+{
+        struct amixer_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->amoplo, AMOPLO_X, x);
+        ctl->dirty.bf.amoplo = 1;
+        return 0;
+}
+static int amixer_set_y(void *blk, unsigned int y)
+{
+        struct amixer_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->amoplo, AMOPLO_Y, y);
+        ctl->dirty.bf.amoplo = 1;
+        return 0;
+}
+static int amixer_set_sadr(void *blk, unsigned int sadr)
+{
+        struct amixer_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->amophi, AMOPHI_SADR, sadr);
+        ctl->dirty.bf.amophi = 1;
+        return 0;
+}
+static int amixer_set_se(void *blk, unsigned int se)
+{
+        struct amixer_rsc_ctrl_blk *ctl = blk;
+        set_field(&ctl->amophi, AMOPHI_SE, se);
+        ctl->dirty.bf.amophi = 1;
+        return 0;
+}
+static int amixer_set_dirty(void *blk, unsigned int flags)
+{
+        ((struct amixer_rsc_ctrl_blk *)blk)->dirty.data = (flags & 0xffff);
+        return 0;
+}
+static int amixer_set_dirty_all(void *blk)
+{
+        ((struct amixer_rsc_ctrl_blk *)blk)->dirty.data = ~(0x0);
+        return 0;
+}
+static int amixer_commit_write(struct hw *hw, unsigned int idx, void *blk)
+{
+        struct amixer_rsc_ctrl_blk *ctl = blk;
+        if (ctl->dirty.bf.amoplo || ctl->dirty.bf.amophi) {
+                hw_write_20kx(hw, MIXER_AMOPLO+idx*8, ctl->amoplo);
+                ctl->dirty.bf.amoplo = 0;
+                hw_write_20kx(hw, MIXER_AMOPHI+idx*8, ctl->amophi);
+                ctl->dirty.bf.amophi = 0;
+        }
+        return 0;
+}
+static int amixer_get_y(void *blk)
+{
+        struct amixer_rsc_ctrl_blk *ctl = blk;
+        return get_field(ctl->amoplo, AMOPLO_Y);
+}
+static unsigned int amixer_get_dirty(void *blk)
+{
+        return ((struct amixer_rsc_ctrl_blk *)blk)->dirty.data;
+}
+static int amixer_rsc_get_ctrl_blk(void **rblk)
+{
+        struct amixer_rsc_ctrl_blk *blk;
+        *rblk = NULL;
+        blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+        if (NULL == blk)
+                return -ENOMEM;
+        *rblk = blk;
+        return 0;
+}
+static int amixer_rsc_put_ctrl_blk(void *blk)
+{
+        kfree(blk);
+        return 0;
+}
+static int amixer_mgr_get_ctrl_blk(void **rblk)
+{
+        *rblk = NULL;
+        return 0;
+}
+static int amixer_mgr_put_ctrl_blk(void *blk)
+{
+        return 0;
+}
+/*
+ * DAIO control block definitions.
+ */
+/* Receiver Sample Rate Tracker Control register */
+#define SRTCTL_SRCO     0x000000FF
+#define SRTCTL_SRCM     0x0000FF00
+#define SRTCTL_RSR      0x00030000
+#define SRTCTL_DRAT     0x00300000
+#define SRTCTL_EC       0x01000000
+#define SRTCTL_ET       0x10000000
+/* DAIO Receiver register dirty flags */
+union dai_dirty {
+        struct {
+                u16 srt:1;
+                u16 rsv:15;
+        } bf;
+        u16 data;
+};
+/* DAIO Receiver control block */
+struct dai_ctrl_blk {
+        unsigned int    srt;
+        union dai_dirty dirty;
+};
+/* Audio Input Mapper RAM */
+#define AIM_ARC         0x00000FFF
+#define AIM_NXT         0x007F0000
+struct daoimap {
+        unsigned int aim;
+        unsigned int idx;
+};
+/* Audio Transmitter Control and Status register */
+#define ATXCTL_EN       0x00000001
+#define ATXCTL_MODE     0x00000010
+#define ATXCTL_CD       0x00000020
+#define ATXCTL_RAW      0x00000100
+#define ATXCTL_MT       0x00000200
+#define ATXCTL_NUC      0x00003000
+#define ATXCTL_BEN      0x00010000
+#define ATXCTL_BMUX     0x00700000
+#define ATXCTL_B24      0x01000000
+#define ATXCTL_CPF      0x02000000
+#define ATXCTL_RIV      0x10000000
+#define ATXCTL_LIV      0x20000000
+#define ATXCTL_RSAT     0x40000000
+#define ATXCTL_LSAT     0x80000000
+/* XDIF Transmitter register dirty flags */
+union dao_dirty {
+        struct {
+                u16 atxcsl:1;
+                u16 rsv:15;
+        } bf;
+        u16 data;
+};
+/* XDIF Transmitter control block */
+struct dao_ctrl_blk {
+        /* XDIF Transmitter Channel Status Low Register */
+        unsigned int    atxcsl;
+        union dao_dirty dirty;
+};
+/* Audio Receiver Control register */
+#define ARXCTL_EN       0x00000001
+/* DAIO manager register dirty flags */
+union daio_mgr_dirty {
+        struct {
+                u32 atxctl:8;
+                u32 arxctl:8;
+                u32 daoimap:1;
+                u32 rsv:15;
+        } bf;
+        u32 data;
+};
+/* DAIO manager control block */
+struct daio_mgr_ctrl_blk {
+        struct daoimap          daoimap;
+        unsigned int            txctl[8];
+        unsigned int            rxctl[8];
+        union daio_mgr_dirty    dirty;
+};
+static int dai_srt_set_srco(void *blk, unsigned int src)
+{
+        struct dai_ctrl_blk *ctl = blk;
+        set_field(&ctl->srt, SRTCTL_SRCO, src);
+        ctl->dirty.bf.srt = 1;
+        return 0;
+}
+static int dai_srt_set_srcm(void *blk, unsigned int src)
+{
+        struct dai_ctrl_blk *ctl = blk;
+        set_field(&ctl->srt, SRTCTL_SRCM, src);
+        ctl->dirty.bf.srt = 1;
+        return 0;
+}
+static int dai_srt_set_rsr(void *blk, unsigned int rsr)
+{
+        struct dai_ctrl_blk *ctl = blk;
+        set_field(&ctl->srt, SRTCTL_RSR, rsr);
+        ctl->dirty.bf.srt = 1;
+        return 0;
+}
+static int dai_srt_set_drat(void *blk, unsigned int drat)
+{
+        struct dai_ctrl_blk *ctl = blk;
+        set_field(&ctl->srt, SRTCTL_DRAT, drat);
+        ctl->dirty.bf.srt = 1;
+        return 0;
+}
+static int dai_srt_set_ec(void *blk, unsigned int ec)
+{
+        struct dai_ctrl_blk *ctl = blk;
+        set_field(&ctl->srt, SRTCTL_EC, ec ? 1 : 0);
+        ctl->dirty.bf.srt = 1;
+        return 0;
+}
+static int dai_srt_set_et(void *blk, unsigned int et)
+{
+        struct dai_ctrl_blk *ctl = blk;
+        set_field(&ctl->srt, SRTCTL_ET, et ? 1 : 0);
+        ctl->dirty.bf.srt = 1;
+        return 0;
+}
+static int dai_commit_write(struct hw *hw, unsigned int idx, void *blk)
+{
+        struct dai_ctrl_blk *ctl = blk;
+        if (ctl->dirty.bf.srt) {
+                hw_write_20kx(hw, AUDIO_IO_RX_SRT_CTL+0x40*idx, ctl->srt);
+                ctl->dirty.bf.srt = 0;
+        }
+        return 0;
+}
+static int dai_get_ctrl_blk(void **rblk)
+{
+        struct dai_ctrl_blk *blk;
+        *rblk = NULL;
+        blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+        if (NULL == blk)
+                return -ENOMEM;
+        *rblk = blk;
+        return 0;
+}
+static int dai_put_ctrl_blk(void *blk)
+{
+        kfree(blk);
+        return 0;
+}
+static int dao_set_spos(void *blk, unsigned int spos)
+{
+        ((struct dao_ctrl_blk *)blk)->atxcsl = spos;
+        ((struct dao_ctrl_blk *)blk)->dirty.bf.atxcsl = 1;
+        return 0;
+}
+static int dao_commit_write(struct hw *hw, unsigned int idx, void *blk)
+{
+        struct dao_ctrl_blk *ctl = blk;
+        if (ctl->dirty.bf.atxcsl) {
+                if (idx < 4) {
+                        /* S/PDIF SPOSx */
+                        hw_write_20kx(hw, AUDIO_IO_TX_CSTAT_L+0x40*idx,
+                                                        ctl->atxcsl);
+                }
+                ctl->dirty.bf.atxcsl = 0;
+        }
+        return 0;
+}
+static int dao_get_spos(void *blk, unsigned int *spos)
+{
+        *spos = ((struct dao_ctrl_blk *)blk)->atxcsl;
+        return 0;
+}
+static int dao_get_ctrl_blk(void **rblk)
+{
+        struct dao_ctrl_blk *blk;
+        *rblk = NULL;
+        blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+        if (NULL == blk)
+                return -ENOMEM;
+        *rblk = blk;
+        return 0;
+}
+static int dao_put_ctrl_blk(void *blk)
+{
+        kfree(blk);
+        return 0;
+}
+static int daio_mgr_enb_dai(void *blk, unsigned int idx)
+{
+        struct daio_mgr_ctrl_blk *ctl = blk;
+        set_field(&ctl->rxctl[idx], ARXCTL_EN, 1);
+        ctl->dirty.bf.arxctl |= (0x1 << idx);
+        return 0;
+}
+static int daio_mgr_dsb_dai(void *blk, unsigned int idx)
+{
+        struct daio_mgr_ctrl_blk *ctl = blk;
+        set_field(&ctl->rxctl[idx], ARXCTL_EN, 0);
+        ctl->dirty.bf.arxctl |= (0x1 << idx);
+        return 0;
+}
+static int daio_mgr_enb_dao(void *blk, unsigned int idx)
+{
+        struct daio_mgr_ctrl_blk *ctl = blk;
+        set_field(&ctl->txctl[idx], ATXCTL_EN, 1);
+        ctl->dirty.bf.atxctl |= (0x1 << idx);
+        return 0;
+}
+static int daio_mgr_dsb_dao(void *blk, unsigned int idx)
+{
+        struct daio_mgr_ctrl_blk *ctl = blk;
+        set_field(&ctl->txctl[idx], ATXCTL_EN, 0);
+        ctl->dirty.bf.atxctl |= (0x1 << idx);
+        return 0;
+}
+static int daio_mgr_dao_init(void *blk, unsigned int idx, unsigned int conf)
+{
+        struct daio_mgr_ctrl_blk *ctl = blk;
+        if (idx < 4) {
+                /* S/PDIF output */
+                switch ((conf & 0x7)) {
+                case 1:
+                        set_field(&ctl->txctl[idx], ATXCTL_NUC, 0);
+                        break;
+                case 2:
+                        set_field(&ctl->txctl[idx], ATXCTL_NUC, 1);
+                        break;
+                case 4:
+                        set_field(&ctl->txctl[idx], ATXCTL_NUC, 2);
+                        break;
+                case 8:
+                        set_field(&ctl->txctl[idx], ATXCTL_NUC, 3);
+                        break;
+                default:
+                        break;
+                }
+                /* CDIF */
+                set_field(&ctl->txctl[idx], ATXCTL_CD, (!(conf & 0x7)));
+                /* Non-audio */
+                set_field(&ctl->txctl[idx], ATXCTL_LIV, (conf >> 4) & 0x1);
+                /* Non-audio */
+                set_field(&ctl->txctl[idx], ATXCTL_RIV, (conf >> 4) & 0x1);
+                set_field(&ctl->txctl[idx], ATXCTL_RAW,
+                          ((conf >> 3) & 0x1) ? 0 : 0);
+                ctl->dirty.bf.atxctl |= (0x1 << idx);
+        } else {
+                /* I2S output */
+                /*idx %= 4; */
+        }
+        return 0;
+}
+static int daio_mgr_set_imaparc(void *blk, unsigned int slot)
+{
+        struct daio_mgr_ctrl_blk *ctl = blk;
+        set_field(&ctl->daoimap.aim, AIM_ARC, slot);
+        ctl->dirty.bf.daoimap = 1;
+        return 0;
+}
+static int daio_mgr_set_imapnxt(void *blk, unsigned int next)
+{
+        struct daio_mgr_ctrl_blk *ctl = blk;
+        set_field(&ctl->daoimap.aim, AIM_NXT, next);
+        ctl->dirty.bf.daoimap = 1;
+        return 0;
+}
+static int daio_mgr_set_imapaddr(void *blk, unsigned int addr)
+{
+        ((struct daio_mgr_ctrl_blk *)blk)->daoimap.idx = addr;
+        ((struct daio_mgr_ctrl_blk *)blk)->dirty.bf.daoimap = 1;
+        return 0;
+}
+static int daio_mgr_commit_write(struct hw *hw, void *blk)
+{
+        struct daio_mgr_ctrl_blk *ctl = blk;
+        unsigned int data;
+        int i;
+        for (i = 0; i < 8; i++) {
+                if ((ctl->dirty.bf.atxctl & (0x1 << i))) {
+                        data = ctl->txctl[i];
+                        hw_write_20kx(hw, (AUDIO_IO_TX_CTL+(0x40*i)), data);
+                        ctl->dirty.bf.atxctl &= ~(0x1 << i);
+                        mdelay(1);
+                }
+                if ((ctl->dirty.bf.arxctl & (0x1 << i))) {
+                        data = ctl->rxctl[i];
+                        hw_write_20kx(hw, (AUDIO_IO_RX_CTL+(0x40*i)), data);
+                        ctl->dirty.bf.arxctl &= ~(0x1 << i);
+                        mdelay(1);
+                }
+        }
+        if (ctl->dirty.bf.daoimap) {
+                hw_write_20kx(hw, AUDIO_IO_AIM+ctl->daoimap.idx*4,
+                                                ctl->daoimap.aim);
+                ctl->dirty.bf.daoimap = 0;
+        }
+        return 0;
+}
+static int daio_mgr_get_ctrl_blk(struct hw *hw, void **rblk)
+{
+        struct daio_mgr_ctrl_blk *blk;
+        int i;
+        *rblk = NULL;
+        blk = kzalloc(sizeof(*blk), GFP_KERNEL);
+        if (NULL == blk)
+                return -ENOMEM;
+        for (i = 0; i < 8; i++) {
+                blk->txctl[i] = hw_read_20kx(hw, AUDIO_IO_TX_CTL+(0x40*i));
+                blk->rxctl[i] = hw_read_20kx(hw, AUDIO_IO_RX_CTL+(0x40*i));
+        }
+        *rblk = blk;
+        return 0;
+}
+static int daio_mgr_put_ctrl_blk(void *blk)
+{
+        kfree(blk);
+        return 0;
+}
+/* Card hardware initialization block */
+struct dac_conf {
+        unsigned int msr; /* master sample rate in rsrs */
+};
+struct adc_conf {
+        unsigned int msr;       /* master sample rate in rsrs */
+        unsigned char input;    /* the input source of ADC */
+        unsigned char mic20db;  /* boost mic by 20db if input is microphone */
+};
+struct daio_conf {
+        unsigned int msr; /* master sample rate in rsrs */
+};
+struct trn_conf {
+        unsigned long vm_pgt_phys;
+};
+static int hw_daio_init(struct hw *hw, const struct daio_conf *info)
+{
+        u32 data;
+        int i;
+        /* Program I2S with proper sample rate and enable the correct I2S
+         * channel. ED(0/8/16/24): Enable all I2S/I2X master clock output */
+        if (1 == info->msr) {
+                hw_write_20kx(hw, AUDIO_IO_MCLK, 0x01010101);
+                hw_write_20kx(hw, AUDIO_IO_TX_BLRCLK, 0x01010101);
+                hw_write_20kx(hw, AUDIO_IO_RX_BLRCLK, 0);
+        } else if (2 == info->msr) {
+                hw_write_20kx(hw, AUDIO_IO_MCLK, 0x11111111);
+                /* Specify all playing 96khz
+                 * EA [0]       - Enabled
+                 * RTA [4:5]    - 96kHz
+                 * EB [8]       - Enabled
+                 * RTB [12:13]  - 96kHz
+                 * EC [16]      - Enabled
+                 * RTC [20:21]  - 96kHz
+                 * ED [24]      - Enabled
+                 * RTD [28:29]  - 96kHz */
+                hw_write_20kx(hw, AUDIO_IO_TX_BLRCLK, 0x11111111);
+                hw_write_20kx(hw, AUDIO_IO_RX_BLRCLK, 0);
+        } else {
+                printk(KERN_ALERT "ctxfi: ERROR!!! Invalid sampling rate!!!\n");
+                return -EINVAL;
+        }
+        for (i = 0; i < 8; i++) {
+                if (i <= 3) {
+                        /* 1st 3 channels are SPDIFs (SB0960) */
+                        if (i == 3)
+                                data = 0x1001001;
+                        else
+                                data = 0x1000001;
+                        hw_write_20kx(hw, (AUDIO_IO_TX_CTL+(0x40*i)), data);
+                        hw_write_20kx(hw, (AUDIO_IO_RX_CTL+(0x40*i)), data);
+                        /* Initialize the SPDIF Out Channel status registers.
+                         * The value specified here is based on the typical
+                         * values provided in the specification, namely: Clock
+                         * Accuracy of 1000ppm, Sample Rate of 48KHz,
+                         * unspecified source number, Generation status = 1,
+                         * Category code = 0x12 (Digital Signal Mixer),
+                         * Mode = 0, Emph = 0, Copy Permitted, AN = 0
+                         * (indicating that we're transmitting digital audio,
+                         * and the Professional Use bit is 0. */
+                        hw_write_20kx(hw, AUDIO_IO_TX_CSTAT_L+(0x40*i),
+                                        0x02109204); /* Default to 48kHz */
+                        hw_write_20kx(hw, AUDIO_IO_TX_CSTAT_H+(0x40*i), 0x0B);
+                } else {
+                        /* Next 5 channels are I2S (SB0960) */
+                        data = 0x11;
+                        hw_write_20kx(hw, AUDIO_IO_RX_CTL+(0x40*i), data);
+                        if (2 == info->msr) {
+                                /* Four channels per sample period */
+                                data |= 0x1000;
+                        }
+                        hw_write_20kx(hw, AUDIO_IO_TX_CTL+(0x40*i), data);
+                }
+        }
+        return 0;
+}
+/* TRANSPORT operations */
+static int hw_trn_init(struct hw *hw, const struct trn_conf *info)
+{
+        u32 vmctl, data;
+        u32 ptp_phys_low, ptp_phys_high;
+        int i;
+        /* Set up device page table */
+        if ((~0UL) == info->vm_pgt_phys) {
+                printk(KERN_ALERT "ctxfi: "
+                       "Wrong device page table page address!!!\n");
+                return -1;
+        }
+        vmctl = 0x80000C0F;  /* 32-bit, 4k-size page */
+        ptp_phys_low = (u32)info->vm_pgt_phys;
+        ptp_phys_high = upper_32_bits(info->vm_pgt_phys);
+        if (sizeof(void *) == 8) /* 64bit address */
+                vmctl |= (3 << 8);
+        /* Write page table physical address to all PTPAL registers */
+        for (i = 0; i < 64; i++) {
+                hw_write_20kx(hw, VMEM_PTPAL+(16*i), ptp_phys_low);
+                hw_write_20kx(hw, VMEM_PTPAH+(16*i), ptp_phys_high);
+        }
+        /* Enable virtual memory transfer */
+        hw_write_20kx(hw, VMEM_CTL, vmctl);
+        /* Enable transport bus master and queueing of request */
+        hw_write_20kx(hw, TRANSPORT_CTL, 0x03);
+        hw_write_20kx(hw, TRANSPORT_INT, 0x200c01);
+        /* Enable transport ring */
+        data = hw_read_20kx(hw, TRANSPORT_ENB);
+        hw_write_20kx(hw, TRANSPORT_ENB, (data | 0x03));
+        return 0;
+}
+/* Card initialization */
+#define GCTL_AIE        0x00000001
+#define GCTL_UAA        0x00000002
+#define GCTL_DPC        0x00000004
+#define GCTL_DBP        0x00000008
+#define GCTL_ABP        0x00000010
+#define GCTL_TBP        0x00000020
+#define GCTL_SBP        0x00000040
+#define GCTL_FBP        0x00000080
+#define GCTL_ME         0x00000100
+#define GCTL_AID        0x00001000
+#define PLLCTL_SRC      0x00000007
+#define PLLCTL_SPE      0x00000008
+#define PLLCTL_RD       0x000000F0
+#define PLLCTL_FD       0x0001FF00
+#define PLLCTL_OD       0x00060000
+#define PLLCTL_B        0x00080000
+#define PLLCTL_AS       0x00100000
+#define PLLCTL_LF       0x03E00000
+#define PLLCTL_SPS      0x1C000000
+#define PLLCTL_AD       0x60000000
+#define PLLSTAT_CCS     0x00000007
+#define PLLSTAT_SPL     0x00000008
+#define PLLSTAT_CRD     0x000000F0
+#define PLLSTAT_CFD     0x0001FF00
+#define PLLSTAT_SL      0x00020000
+#define PLLSTAT_FAS     0x00040000
+#define PLLSTAT_B       0x00080000
+#define PLLSTAT_PD      0x00100000
+#define PLLSTAT_OCA     0x00200000
+#define PLLSTAT_NCA     0x00400000
+static int hw_pll_init(struct hw *hw, unsigned int rsr)
+{
+        unsigned int pllenb;
+        unsigned int pllctl;
+        unsigned int pllstat;
+        int i;
+        pllenb = 0xB;
+        hw_write_20kx(hw, PLL_ENB, pllenb);
+        pllctl = 0x20D00000;
+        set_field(&pllctl, PLLCTL_FD, 16 - 4);
+        hw_write_20kx(hw, PLL_CTL, pllctl);
+        mdelay(40);
+        pllctl = hw_read_20kx(hw, PLL_CTL);
+        set_field(&pllctl, PLLCTL_B, 0);
+        if (48000 == rsr) {
+                set_field(&pllctl, PLLCTL_FD, 16 - 2);
+                set_field(&pllctl, PLLCTL_RD, 1 - 1);
+        } else { /* 44100 */
+                set_field(&pllctl, PLLCTL_FD, 147 - 2);
+                set_field(&pllctl, PLLCTL_RD, 10 - 1);
+        }
+        hw_write_20kx(hw, PLL_CTL, pllctl);
+        mdelay(40);
+        for (i = 0; i < 1000; i++) {
+                pllstat = hw_read_20kx(hw, PLL_STAT);
+                if (get_field(pllstat, PLLSTAT_PD))
+                        continue;
+                if (get_field(pllstat, PLLSTAT_B) !=
+                                        get_field(pllctl, PLLCTL_B))
+                        continue;
+                if (get_field(pllstat, PLLSTAT_CCS) !=
+                                        get_field(pllctl, PLLCTL_SRC))
+                        continue;
+                if (get_field(pllstat, PLLSTAT_CRD) !=
+                                        get_field(pllctl, PLLCTL_RD))
+                        continue;
+                if (get_field(pllstat, PLLSTAT_CFD) !=
+                                        get_field(pllctl, PLLCTL_FD))
+                        continue;
+                break;
+        }
+        if (i >= 1000) {
+                printk(KERN_ALERT "ctxfi: PLL initialization failed!!!\n");
+                return -EBUSY;
+        }
+        return 0;
+}
+static int hw_auto_init(struct hw *hw)
+{
+        unsigned int gctl;
+        int i;
+        gctl = hw_read_20kx(hw, GLOBAL_CNTL_GCTL);
+        set_field(&gctl, GCTL_AIE, 0);
+        hw_write_20kx(hw, GLOBAL_CNTL_GCTL, gctl);
+        set_field(&gctl, GCTL_AIE, 1);
+        hw_write_20kx(hw, GLOBAL_CNTL_GCTL, gctl);
+        mdelay(10);
+        for (i = 0; i < 400000; i++) {
+                gctl = hw_read_20kx(hw, GLOBAL_CNTL_GCTL);
+                if (get_field(gctl, GCTL_AID))
+                        break;
+        }
+        if (!get_field(gctl, GCTL_AID)) {
+                printk(KERN_ALERT "ctxfi: Card Auto-init failed!!!\n");
+                return -EBUSY;
+        }
+        return 0;
+}
+/* DAC operations */
+#define CS4382_MC1              0x1
+#define CS4382_MC2              0x2
+#define CS4382_MC3              0x3
+#define CS4382_FC               0x4
+#define CS4382_IC               0x5
+#define CS4382_XC1              0x6
+#define CS4382_VCA1             0x7
+#define CS4382_VCB1             0x8
+#define CS4382_XC2              0x9
+#define CS4382_VCA2             0xA
+#define CS4382_VCB2             0xB
+#define CS4382_XC3              0xC
+#define CS4382_VCA3             0xD
+#define CS4382_VCB3             0xE
+#define CS4382_XC4              0xF
+#define CS4382_VCA4             0x10
+#define CS4382_VCB4             0x11
+#define CS4382_CREV             0x12
+/* I2C status */
+#define STATE_LOCKED            0x00
+#define STATE_UNLOCKED          0xAA
+#define DATA_READY              0x800000    /* Used with I2C_IF_STATUS */
+#define DATA_ABORT              0x10000     /* Used with I2C_IF_STATUS */
+#define I2C_STATUS_DCM  0x00000001
+#define I2C_STATUS_BC   0x00000006
+#define I2C_STATUS_APD  0x00000008
+#define I2C_STATUS_AB   0x00010000
+#define I2C_STATUS_DR   0x00800000
+#define I2C_ADDRESS_PTAD        0x0000FFFF
+#define I2C_ADDRESS_SLAD        0x007F0000
+struct regs_cs4382 {
+        u32 mode_control_1;
+        u32 mode_control_2;
+        u32 mode_control_3;
+        u32 filter_control;
+        u32 invert_control;
+        u32 mix_control_P1;
+        u32 vol_control_A1;
+        u32 vol_control_B1;
+        u32 mix_control_P2;
+        u32 vol_control_A2;
+        u32 vol_control_B2;
+        u32 mix_control_P3;
+        u32 vol_control_A3;
+        u32 vol_control_B3;
+        u32 mix_control_P4;
+        u32 vol_control_A4;
+        u32 vol_control_B4;
+};
+static int hw20k2_i2c_unlock_full_access(struct hw *hw)
+{
+        u8 UnlockKeySequence_FLASH_FULLACCESS_MODE[2] =  {0xB3, 0xD4};
+        /* Send keys for forced BIOS mode */
+        hw_write_20kx(hw, I2C_IF_WLOCK,
+                        UnlockKeySequence_FLASH_FULLACCESS_MODE[0]);
+        hw_write_20kx(hw, I2C_IF_WLOCK,
+                        UnlockKeySequence_FLASH_FULLACCESS_MODE[1]);
+        /* Check whether the chip is unlocked */
+        if (hw_read_20kx(hw, I2C_IF_WLOCK) == STATE_UNLOCKED)
+                return 0;
+        return -1;
+}
+static int hw20k2_i2c_lock_chip(struct hw *hw)
+{
+        /* Write twice */
+        hw_write_20kx(hw, I2C_IF_WLOCK, STATE_LOCKED);
+        hw_write_20kx(hw, I2C_IF_WLOCK, STATE_LOCKED);
+        if (hw_read_20kx(hw, I2C_IF_WLOCK) == STATE_LOCKED)
+                return 0;
+        return -1;
+}
+static int hw20k2_i2c_init(struct hw *hw, u8 dev_id, u8 addr_size, u8 data_size)
+{
+        struct hw20k2 *hw20k2 = (struct hw20k2 *)hw;
+        int err;
+        unsigned int i2c_status;
+        unsigned int i2c_addr;
+        err = hw20k2_i2c_unlock_full_access(hw);
+        if (err < 0)
+                return err;
+        hw20k2->addr_size = addr_size;
+        hw20k2->data_size = data_size;
+        hw20k2->dev_id = dev_id;
+        i2c_addr = 0;
+        set_field(&i2c_addr, I2C_ADDRESS_SLAD, dev_id);
+        hw_write_20kx(hw, I2C_IF_ADDRESS, i2c_addr);
+        i2c_status = hw_read_20kx(hw, I2C_IF_STATUS);
+        set_field(&i2c_status, I2C_STATUS_DCM, 1); /* Direct control mode */
+        hw_write_20kx(hw, I2C_IF_STATUS, i2c_status);
+        return 0;
+}
+static int hw20k2_i2c_uninit(struct hw *hw)
+{
+        unsigned int i2c_status;
+        unsigned int i2c_addr;
+        i2c_addr = 0;
+        set_field(&i2c_addr, I2C_ADDRESS_SLAD, 0x57); /* I2C id */
+        hw_write_20kx(hw, I2C_IF_ADDRESS, i2c_addr);
+        i2c_status = hw_read_20kx(hw, I2C_IF_STATUS);
+        set_field(&i2c_status, I2C_STATUS_DCM, 0); /* I2C mode */
+        hw_write_20kx(hw, I2C_IF_STATUS, i2c_status);
+        return hw20k2_i2c_lock_chip(hw);
+}
+static int hw20k2_i2c_wait_data_ready(struct hw *hw)
+{
+        int i = 0x400000;
+        unsigned int ret;
+        do {
+                ret = hw_read_20kx(hw, I2C_IF_STATUS);
+        } while ((!(ret & DATA_READY)) && --i);
+        return i;
+}
+static int hw20k2_i2c_read(struct hw *hw, u16 addr, u32 *datap)
+{
+        struct hw20k2 *hw20k2 = (struct hw20k2 *)hw;
+        unsigned int i2c_status;
+        i2c_status = hw_read_20kx(hw, I2C_IF_STATUS);
+        set_field(&i2c_status, I2C_STATUS_BC,
+                  (4 == hw20k2->addr_size) ? 0 : hw20k2->addr_size);
+        hw_write_20kx(hw, I2C_IF_STATUS, i2c_status);
+        if (!hw20k2_i2c_wait_data_ready(hw))
+                return -1;
+        hw_write_20kx(hw, I2C_IF_WDATA, addr);
+        if (!hw20k2_i2c_wait_data_ready(hw))
+                return -1;
+        /* Force a read operation */
+        hw_write_20kx(hw, I2C_IF_RDATA, 0);
+        if (!hw20k2_i2c_wait_data_ready(hw))
+                return -1;
+        *datap = hw_read_20kx(hw, I2C_IF_RDATA);
+        return 0;
+}
+static int hw20k2_i2c_write(struct hw *hw, u16 addr, u32 data)
+{
+        struct hw20k2 *hw20k2 = (struct hw20k2 *)hw;
+        unsigned int i2c_data = (data << (hw20k2->addr_size * 8)) | addr;
+        unsigned int i2c_status;
+        i2c_status = hw_read_20kx(hw, I2C_IF_STATUS);
+        set_field(&i2c_status, I2C_STATUS_BC,
+                  (4 == (hw20k2->addr_size + hw20k2->data_size)) ?
+                  0 : (hw20k2->addr_size + hw20k2->data_size));
+        hw_write_20kx(hw, I2C_IF_STATUS, i2c_status);
+        hw20k2_i2c_wait_data_ready(hw);
+        /* Dummy write to trigger the write oprtation */
+        hw_write_20kx(hw, I2C_IF_WDATA, 0);
+        hw20k2_i2c_wait_data_ready(hw);
+        /* This is the real data */
+        hw_write_20kx(hw, I2C_IF_WDATA, i2c_data);
+        hw20k2_i2c_wait_data_ready(hw);
+        return 0;
+}
+static int hw_dac_init(struct hw *hw, const struct dac_conf *info)
+{
+        int err;
+        u32 data;
+        int i;
+        struct regs_cs4382 cs_read = {0};
+        struct regs_cs4382 cs_def = {
+                                   0x00000001,  /* Mode Control 1 */
+                                   0x00000000,  /* Mode Control 2 */
+                                   0x00000084,  /* Mode Control 3 */
+                                   0x00000000,  /* Filter Control */
+                                   0x00000000,  /* Invert Control */
+                                   0x00000024,  /* Mixing Control Pair 1 */
+                                   0x00000000,  /* Vol Control A1 */
+                                   0x00000000,  /* Vol Control B1 */
+                                   0x00000024,  /* Mixing Control Pair 2 */
+                                   0x00000000,  /* Vol Control A2 */
+                                   0x00000000,  /* Vol Control B2 */
+                                   0x00000024,  /* Mixing Control Pair 3 */
+                                   0x00000000,  /* Vol Control A3 */
+                                   0x00000000,  /* Vol Control B3 */
+                                   0x00000024,  /* Mixing Control Pair 4 */
+                                   0x00000000,  /* Vol Control A4 */
+                                   0x00000000   /* Vol Control B4 */
+                                 };
+        /* Set DAC reset bit as output */
+        data = hw_read_20kx(hw, GPIO_CTRL);
+        data |= 0x02;
+        hw_write_20kx(hw, GPIO_CTRL, data);
+        err = hw20k2_i2c_init(hw, 0x18, 1, 1);
+        if (err < 0)
+                goto End;
+        for (i = 0; i < 2; i++) {
+                /* Reset DAC twice just in-case the chip
+                 * didn't initialized properly */
+                data = hw_read_20kx(hw, GPIO_DATA);
+                /* GPIO data bit 1 */
+                data &= 0xFFFFFFFD;
+                hw_write_20kx(hw, GPIO_DATA, data);
+                mdelay(10);
+                data |= 0x2;
+                hw_write_20kx(hw, GPIO_DATA, data);
+                mdelay(50);
+                /* Reset the 2nd time */
+                data &= 0xFFFFFFFD;
+                hw_write_20kx(hw, GPIO_DATA, data);
+                mdelay(10);
+                data |= 0x2;
+                hw_write_20kx(hw, GPIO_DATA, data);
+                mdelay(50);
+                if (hw20k2_i2c_read(hw, CS4382_MC1,  &cs_read.mode_control_1))
+                        continue;
+                if (hw20k2_i2c_read(hw, CS4382_MC2,  &cs_read.mode_control_2))
+                        continue;
+                if (hw20k2_i2c_read(hw, CS4382_MC3,  &cs_read.mode_control_3))
+                        continue;
+                if (hw20k2_i2c_read(hw, CS4382_FC,   &cs_read.filter_control))
+                        continue;
+                if (hw20k2_i2c_read(hw, CS4382_IC,   &cs_read.invert_control))
+                        continue;
+                if (hw20k2_i2c_read(hw, CS4382_XC1,  &cs_read.mix_control_P1))
+                        continue;
+                if (hw20k2_i2c_read(hw, CS4382_VCA1, &cs_read.vol_control_A1))
+                        continue;
+                if (hw20k2_i2c_read(hw, CS4382_VCB1, &cs_read.vol_control_B1))
+                        continue;
+                if (hw20k2_i2c_read(hw, CS4382_XC2,  &cs_read.mix_control_P2))
+                        continue;
+                if (hw20k2_i2c_read(hw, CS4382_VCA2, &cs_read.vol_control_A2))
+                        continue;
+                if (hw20k2_i2c_read(hw, CS4382_VCB2, &cs_read.vol_control_B2))
+                        continue;
+                if (hw20k2_i2c_read(hw, CS4382_XC3,  &cs_read.mix_control_P3))
+                        continue;
+                if (hw20k2_i2c_read(hw, CS4382_VCA3, &cs_read.vol_control_A3))
+                        continue;
+                if (hw20k2_i2c_read(hw, CS4382_VCB3, &cs_read.vol_control_B3))
+                        continue;
+                if (hw20k2_i2c_read(hw, CS4382_XC4,  &cs_read.mix_control_P4))
+                        continue;
+                if (hw20k2_i2c_read(hw, CS4382_VCA4, &cs_read.vol_control_A4))
+                        continue;
+                if (hw20k2_i2c_read(hw, CS4382_VCB4, &cs_read.vol_control_B4))
+                        continue;
+                if (memcmp(&cs_read, &cs_def, sizeof(cs_read)))
+                        continue;
+                else
+                        break;
+        }
+        if (i >= 2)
+                goto End;
+        /* Note: Every I2C write must have some delay.
+         * This is not a requirement but the delay works here... */
+        hw20k2_i2c_write(hw, CS4382_MC1, 0x80);
+        hw20k2_i2c_write(hw, CS4382_MC2, 0x10);
+        if (1 == info->msr) {
+                hw20k2_i2c_write(hw, CS4382_XC1, 0x24);
+                hw20k2_i2c_write(hw, CS4382_XC2, 0x24);
+                hw20k2_i2c_write(hw, CS4382_XC3, 0x24);
+                hw20k2_i2c_write(hw, CS4382_XC4, 0x24);
+        } else if (2 == info->msr) {
+                hw20k2_i2c_write(hw, CS4382_XC1, 0x25);
+                hw20k2_i2c_write(hw, CS4382_XC2, 0x25);
+                hw20k2_i2c_write(hw, CS4382_XC3, 0x25);
+                hw20k2_i2c_write(hw, CS4382_XC4, 0x25);
+        } else {
+                hw20k2_i2c_write(hw, CS4382_XC1, 0x26);
+                hw20k2_i2c_write(hw, CS4382_XC2, 0x26);
+                hw20k2_i2c_write(hw, CS4382_XC3, 0x26);
+                hw20k2_i2c_write(hw, CS4382_XC4, 0x26);
+        }
+        return 0;
+End:
+        hw20k2_i2c_uninit(hw);
+        return -1;
+}
+/* ADC operations */
+#define MAKE_WM8775_ADDR(addr, data)    (u32)(((addr<<1)&0xFE)|((data>>8)&0x1))
+#define MAKE_WM8775_DATA(data)  (u32)(data&0xFF)
+#define WM8775_IC       0x0B
+#define WM8775_MMC      0x0C
+#define WM8775_AADCL    0x0E
+#define WM8775_AADCR    0x0F
+#define WM8775_ADCMC    0x15
+#define WM8775_RESET    0x17
+static int hw_is_adc_input_selected(struct hw *hw, enum ADCSRC type)
+{
+        u32 data;
+        data = hw_read_20kx(hw, GPIO_DATA);
+        switch (type) {
+        case ADC_MICIN:
+                data = (data & (0x1 << 14)) ? 1 : 0;
+                break;
+        case ADC_LINEIN:
+                data = (data & (0x1 << 14)) ? 0 : 1;
+                break;
+        default:
+                data = 0;
+        }
+        return data;
+}
+static int hw_adc_input_select(struct hw *hw, enum ADCSRC type)
+{
+        u32 data;
+        data = hw_read_20kx(hw, GPIO_DATA);
+        switch (type) {
+        case ADC_MICIN:
+                data |= (0x1 << 14);
+                hw_write_20kx(hw, GPIO_DATA, data);
+                hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_ADCMC, 0x101),
+                                MAKE_WM8775_DATA(0x101)); /* Mic-in */
+                hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_AADCL, 0xE7),
+                                MAKE_WM8775_DATA(0xE7)); /* +12dB boost */
+                hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_AADCR, 0xE7),
+                                MAKE_WM8775_DATA(0xE7)); /* +12dB boost */
+                break;
+        case ADC_LINEIN:
+                data &= ~(0x1 << 14);
+                hw_write_20kx(hw, GPIO_DATA, data);
+                hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_ADCMC, 0x102),
+                                MAKE_WM8775_DATA(0x102)); /* Line-in */
+                hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_AADCL, 0xCF),
+                                MAKE_WM8775_DATA(0xCF)); /* No boost */
+                hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_AADCR, 0xCF),
+                                MAKE_WM8775_DATA(0xCF)); /* No boost */
+                break;
+        default:
+                break;
+        }
+        return 0;
+}
+static int hw_adc_init(struct hw *hw, const struct adc_conf *info)
+{
+        int err;
+        u32 mux = 2, data, ctl;
+        /*  Set ADC reset bit as output */
+        data = hw_read_20kx(hw, GPIO_CTRL);
+        data |= (0x1 << 15);
+        hw_write_20kx(hw, GPIO_CTRL, data);
+        /* Initialize I2C */
+        err = hw20k2_i2c_init(hw, 0x1A, 1, 1);
+        if (err < 0) {
+                printk(KERN_ALERT "ctxfi: Failure to acquire I2C!!!\n");
+                goto error;
+        }
+        /* Make ADC in normal operation */
+        data = hw_read_20kx(hw, GPIO_DATA);
+        data &= ~(0x1 << 15);
+        mdelay(10);
+        data |= (0x1 << 15);
+        hw_write_20kx(hw, GPIO_DATA, data);
+        mdelay(50);
+        /* Set the master mode (256fs) */
+        if (1 == info->msr) {
+                hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_MMC, 0x02),
+                                                MAKE_WM8775_DATA(0x02));
+        } else if (2 == info->msr) {
+                hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_MMC, 0x0A),
+                                                MAKE_WM8775_DATA(0x0A));
+        } else {
+                printk(KERN_ALERT "ctxfi: Invalid master sampling "
+                                  "rate (msr %d)!!!\n", info->msr);
+                err = -EINVAL;
+                goto error;
+        }
+        /* Configure GPIO bit 14 change to line-in/mic-in */
+        ctl = hw_read_20kx(hw, GPIO_CTRL);
+        ctl |= 0x1 << 14;
+        hw_write_20kx(hw, GPIO_CTRL, ctl);
+        /* Check using Mic-in or Line-in */
+        data = hw_read_20kx(hw, GPIO_DATA);
+        if (mux == 1) {
+                /* Configures GPIO data to select Mic-in */
+                data |= 0x1 << 14;
+                hw_write_20kx(hw, GPIO_DATA, data);
+                hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_ADCMC, 0x101),
+                                MAKE_WM8775_DATA(0x101)); /* Mic-in */
+                hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_AADCL, 0xE7),
+                                MAKE_WM8775_DATA(0xE7)); /* +12dB boost */
+                hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_AADCR, 0xE7),
+                                MAKE_WM8775_DATA(0xE7)); /* +12dB boost */
+        } else if (mux == 2) {
+                /* Configures GPIO data to select Line-in */
+                data &= ~(0x1 << 14);
+                hw_write_20kx(hw, GPIO_DATA, data);
+                /* Setup ADC */
+                hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_ADCMC, 0x102),
+                                MAKE_WM8775_DATA(0x102)); /* Line-in */
+                hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_AADCL, 0xCF),
+                                MAKE_WM8775_DATA(0xCF)); /* No boost */
+                hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_AADCR, 0xCF),
+                                MAKE_WM8775_DATA(0xCF)); /* No boost */
+        } else {
+                printk(KERN_ALERT "ctxfi: ERROR!!! Invalid input mux!!!\n");
+                err = -EINVAL;
+                goto error;
+        }
+        return 0;
+error:
+        hw20k2_i2c_uninit(hw);
+        return err;
+}
+static int hw_have_digit_io_switch(struct hw *hw)
+{
+        return 0;
+}
+static int hw_card_start(struct hw *hw)
+{
+        int err = 0;
+        struct pci_dev *pci = hw->pci;
+        unsigned int gctl;
+        err = pci_enable_device(pci);
+        if (err < 0)
+                return err;
+        /* Set DMA transfer mask */
+        if (pci_set_dma_mask(pci, CT_XFI_DMA_MASK) < 0 ||
+            pci_set_consistent_dma_mask(pci, CT_XFI_DMA_MASK) < 0) {
+                printk(KERN_ERR "ctxfi: architecture does not support PCI "
+                "busmaster DMA with mask 0x%llx\n", CT_XFI_DMA_MASK);
+                err = -ENXIO;
+                goto error1;
+        }
+        err = pci_request_regions(pci, "XFi");
+        if (err < 0)
+                goto error1;
+        hw->io_base = pci_resource_start(hw->pci, 2);
+        hw->mem_base = (unsigned long)ioremap(hw->io_base,
+                                        pci_resource_len(hw->pci, 2));
+        if (NULL == (void *)hw->mem_base) {
+                err = -ENOENT;
+                goto error2;
+        }
+        /* Switch to 20k2 mode from UAA mode. */
+        gctl = hw_read_20kx(hw, GLOBAL_CNTL_GCTL);
+        set_field(&gctl, GCTL_UAA, 0);
+        hw_write_20kx(hw, GLOBAL_CNTL_GCTL, gctl);
+        /*if ((err = request_irq(pci->irq, ct_atc_interrupt, IRQF_SHARED,
+                                atc->chip_details->nm_card, hw))) {
+                goto error3;
+        }
+        hw->irq = pci->irq;
+        */
+        pci_set_master(pci);
+        return 0;
+/*error3:
+        iounmap((void *)hw->mem_base);
+        hw->mem_base = (unsigned long)NULL;*/
+error2:
+        pci_release_regions(pci);
+        hw->io_base = 0;
+error1:
+        pci_disable_device(pci);
+        return err;
+}
+static int hw_card_stop(struct hw *hw)
+{
+        /* TODO: Disable interrupt and so on... */
+        return 0;
+}
+static int hw_card_shutdown(struct hw *hw)
+{
+        if (hw->irq >= 0)
+                free_irq(hw->irq, hw);
+        hw->irq = -1;
+        if (NULL != ((void *)hw->mem_base))
+                iounmap((void *)hw->mem_base);
+        hw->mem_base = (unsigned long)NULL;
+        if (hw->io_base)
+                pci_release_regions(hw->pci);
+        hw->io_base = 0;
+        pci_disable_device(hw->pci);
+        return 0;
+}
+static int hw_card_init(struct hw *hw, struct card_conf *info)
+{
+        int err;
+        unsigned int gctl;
+        u32 data = 0;
+        struct dac_conf dac_info = {0};
+        struct adc_conf adc_info = {0};
+        struct daio_conf daio_info = {0};
+        struct trn_conf trn_info = {0};
+        /* Get PCI io port/memory base address and
+         * do 20kx core switch if needed. */
+        if (!hw->io_base) {
+                err = hw_card_start(hw);
+                if (err)
+                        return err;
+        }
+        /* PLL init */
+        err = hw_pll_init(hw, info->rsr);
+        if (err < 0)
+                return err;
+        /* kick off auto-init */
+        err = hw_auto_init(hw);
+        if (err < 0)
+                return err;
+        gctl = hw_read_20kx(hw, GLOBAL_CNTL_GCTL);
+        set_field(&gctl, GCTL_DBP, 1);
+        set_field(&gctl, GCTL_TBP, 1);
+        set_field(&gctl, GCTL_FBP, 1);
+        set_field(&gctl, GCTL_DPC, 0);
+        hw_write_20kx(hw, GLOBAL_CNTL_GCTL, gctl);
+        /* Reset all global pending interrupts */
+        hw_write_20kx(hw, INTERRUPT_GIE, 0);
+        /* Reset all SRC pending interrupts */
+        hw_write_20kx(hw, SRC_IP, 0);
+        /* TODO: detect the card ID and configure GPIO accordingly. */
+        /* Configures GPIO (0xD802 0x98028) */
+        /*hw_write_20kx(hw, GPIO_CTRL, 0x7F07);*/
+        /* Configures GPIO (SB0880) */
+        /*hw_write_20kx(hw, GPIO_CTRL, 0xFF07);*/
+        hw_write_20kx(hw, GPIO_CTRL, 0xD802);
+        /* Enable audio ring */
+        hw_write_20kx(hw, MIXER_AR_ENABLE, 0x01);
+        trn_info.vm_pgt_phys = info->vm_pgt_phys;
+        err = hw_trn_init(hw, &trn_info);
+        if (err < 0)
+                return err;
+        daio_info.msr = info->msr;
+        err = hw_daio_init(hw, &daio_info);
+        if (err < 0)
+                return err;
+        dac_info.msr = info->msr;
+        err = hw_dac_init(hw, &dac_info);
+        if (err < 0)
+                return err;
+        adc_info.msr = info->msr;
+        adc_info.input = ADC_LINEIN;
+        adc_info.mic20db = 0;
+        err = hw_adc_init(hw, &adc_info);
+        if (err < 0)
+                return err;
+        data = hw_read_20kx(hw, SRC_MCTL);
+        data |= 0x1; /* Enables input from the audio ring */
+        hw_write_20kx(hw, SRC_MCTL, data);
+        return 0;
+}
+static u32 hw_read_20kx(struct hw *hw, u32 reg)
+{
+        return readl((void *)(hw->mem_base + reg));
+}
+static void hw_write_20kx(struct hw *hw, u32 reg, u32 data)
+{
+        writel(data, (void *)(hw->mem_base + reg));
+}
+static struct hw ct20k2_preset __devinitdata = {
+        .irq = -1,
+        .card_init = hw_card_init,
+        .card_stop = hw_card_stop,
+        .pll_init = hw_pll_init,
+        .is_adc_source_selected = hw_is_adc_input_selected,
+        .select_adc_source = hw_adc_input_select,
+        .have_digit_io_switch = hw_have_digit_io_switch,
+        .src_rsc_get_ctrl_blk = src_get_rsc_ctrl_blk,
+        .src_rsc_put_ctrl_blk = src_put_rsc_ctrl_blk,
+        .src_mgr_get_ctrl_blk = src_mgr_get_ctrl_blk,
+        .src_mgr_put_ctrl_blk = src_mgr_put_ctrl_blk,
+        .src_set_state = src_set_state,
+        .src_set_bm = src_set_bm,
+        .src_set_rsr = src_set_rsr,
+        .src_set_sf = src_set_sf,
+        .src_set_wr = src_set_wr,
+        .src_set_pm = src_set_pm,
+        .src_set_rom = src_set_rom,
+        .src_set_vo = src_set_vo,
+        .src_set_st = src_set_st,
+        .src_set_ie = src_set_ie,
+        .src_set_ilsz = src_set_ilsz,
+        .src_set_bp = src_set_bp,
+        .src_set_cisz = src_set_cisz,
+        .src_set_ca = src_set_ca,
+        .src_set_sa = src_set_sa,
+        .src_set_la = src_set_la,
+        .src_set_pitch = src_set_pitch,
+        .src_set_dirty = src_set_dirty,
+        .src_set_clear_zbufs = src_set_clear_zbufs,
+        .src_set_dirty_all = src_set_dirty_all,
+        .src_commit_write = src_commit_write,
+        .src_get_ca = src_get_ca,
+        .src_get_dirty = src_get_dirty,
+        .src_dirty_conj_mask = src_dirty_conj_mask,
+        .src_mgr_enbs_src = src_mgr_enbs_src,
+        .src_mgr_enb_src = src_mgr_enb_src,
+        .src_mgr_dsb_src = src_mgr_dsb_src,
+        .src_mgr_commit_write = src_mgr_commit_write,
+        .srcimp_mgr_get_ctrl_blk = srcimp_mgr_get_ctrl_blk,
+        .srcimp_mgr_put_ctrl_blk = srcimp_mgr_put_ctrl_blk,
+        .srcimp_mgr_set_imaparc = srcimp_mgr_set_imaparc,
+        .srcimp_mgr_set_imapuser = srcimp_mgr_set_imapuser,
+        .srcimp_mgr_set_imapnxt = srcimp_mgr_set_imapnxt,
+        .srcimp_mgr_set_imapaddr = srcimp_mgr_set_imapaddr,
+        .srcimp_mgr_commit_write = srcimp_mgr_commit_write,
+        .amixer_rsc_get_ctrl_blk = amixer_rsc_get_ctrl_blk,
+        .amixer_rsc_put_ctrl_blk = amixer_rsc_put_ctrl_blk,
+        .amixer_mgr_get_ctrl_blk = amixer_mgr_get_ctrl_blk,
+        .amixer_mgr_put_ctrl_blk = amixer_mgr_put_ctrl_blk,
+        .amixer_set_mode = amixer_set_mode,
+        .amixer_set_iv = amixer_set_iv,
+        .amixer_set_x = amixer_set_x,
+        .amixer_set_y = amixer_set_y,
+        .amixer_set_sadr = amixer_set_sadr,
+        .amixer_set_se = amixer_set_se,
+        .amixer_set_dirty = amixer_set_dirty,
+        .amixer_set_dirty_all = amixer_set_dirty_all,
+        .amixer_commit_write = amixer_commit_write,
+        .amixer_get_y = amixer_get_y,
+        .amixer_get_dirty = amixer_get_dirty,
+        .dai_get_ctrl_blk = dai_get_ctrl_blk,
+        .dai_put_ctrl_blk = dai_put_ctrl_blk,
+        .dai_srt_set_srco = dai_srt_set_srco,
+        .dai_srt_set_srcm = dai_srt_set_srcm,
+        .dai_srt_set_rsr = dai_srt_set_rsr,
+        .dai_srt_set_drat = dai_srt_set_drat,
+        .dai_srt_set_ec = dai_srt_set_ec,
+        .dai_srt_set_et = dai_srt_set_et,
+        .dai_commit_write = dai_commit_write,
+        .dao_get_ctrl_blk = dao_get_ctrl_blk,
+        .dao_put_ctrl_blk = dao_put_ctrl_blk,
+        .dao_set_spos = dao_set_spos,
+        .dao_commit_write = dao_commit_write,
+        .dao_get_spos = dao_get_spos,
+        .daio_mgr_get_ctrl_blk = daio_mgr_get_ctrl_blk,
+        .daio_mgr_put_ctrl_blk = daio_mgr_put_ctrl_blk,
+        .daio_mgr_enb_dai = daio_mgr_enb_dai,
+        .daio_mgr_dsb_dai = daio_mgr_dsb_dai,
+        .daio_mgr_enb_dao = daio_mgr_enb_dao,
+        .daio_mgr_dsb_dao = daio_mgr_dsb_dao,
+        .daio_mgr_dao_init = daio_mgr_dao_init,
+        .daio_mgr_set_imaparc = daio_mgr_set_imaparc,
+        .daio_mgr_set_imapnxt = daio_mgr_set_imapnxt,
+        .daio_mgr_set_imapaddr = daio_mgr_set_imapaddr,
+        .daio_mgr_commit_write = daio_mgr_commit_write,
+};
+int __devinit create_20k2_hw_obj(struct hw **rhw)
+{
+        struct hw20k2 *hw20k2;
+        *rhw = NULL;
+        hw20k2 = kzalloc(sizeof(*hw20k2), GFP_KERNEL);
+        if (!hw20k2)
+                return -ENOMEM;
+        hw20k2->hw = ct20k2_preset;
+        *rhw = &hw20k2->hw;
+        return 0;
+}
+int destroy_20k2_hw_obj(struct hw *hw)
+{
+        if (hw->io_base)
+                hw_card_shutdown(hw);
+        kfree(hw);
+        return 0;
+}
diff --git a/sound/pci/ctxfi/cthw20k2.h b/sound/pci/ctxfi/cthw20k2.h
new file mode 100644
index 000000000000..d2b7daab6815
--- /dev/null
+++ b/sound/pci/ctxfi/cthw20k2.h
@@ -0,0 +1,26 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File        cthw20k2.h
+ *
+ * @Brief
+ * This file contains the definition of hardware access methord.
+ *
+ * @Author      Liu Chun
+ * @Date        May 13 2008
+ *
+ */
+#ifndef CTHW20K2_H
+#define CTHW20K2_H
+#include "cthardware.h"
+int create_20k2_hw_obj(struct hw **rhw);
+int destroy_20k2_hw_obj(struct hw *hw);
+#endif /* CTHW20K2_H */
diff --git a/sound/pci/ctxfi/ctimap.c b/sound/pci/ctxfi/ctimap.c
new file mode 100644
index 000000000000..0b73368a4df6
--- /dev/null
+++ b/sound/pci/ctxfi/ctimap.c
@@ -0,0 +1,112 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File        ctimap.c
+ *
+ * @Brief
+ * This file contains the implementation of generic input mapper operations
+ * for input mapper management.
+ *
+ * @Author      Liu Chun
+ * @Date        May 23 2008
+ *
+ */
+#include "ctimap.h"
+#include <linux/slab.h>
+int input_mapper_add(struct list_head *mappers, struct imapper *entry,
+                     int (*map_op)(void *, struct imapper *), void *data)
+{
+        struct list_head *pos, *pre, *head;
+        struct imapper *pre_ent, *pos_ent;
+        head = mappers;
+        if (list_empty(head)) {
+                entry->next = entry->addr;
+                map_op(data, entry);
+                list_add(&entry->list, head);
+                return 0;
+        }
+        list_for_each(pos, head) {
+                pos_ent = list_entry(pos, struct imapper, list);
+                if (pos_ent->slot > entry->slot) {
+                        /* found a position in list */
+                        break;
+                }
+        }
+        if (pos != head) {
+                pre = pos->prev;
+                if (pre == head)
+                        pre = head->prev;
+                __list_add(&entry->list, pos->prev, pos);
+        } else {
+                pre = head->prev;
+                pos = head->next;
+                list_add_tail(&entry->list, head);
+        }
+        pre_ent = list_entry(pre, struct imapper, list);
+        pos_ent = list_entry(pos, struct imapper, list);
+        entry->next = pos_ent->addr;
+        map_op(data, entry);
+        pre_ent->next = entry->addr;
+        map_op(data, pre_ent);
+        return 0;
+}
+int input_mapper_delete(struct list_head *mappers, struct imapper *entry,
+                     int (*map_op)(void *, struct imapper *), void *data)
+{
+        struct list_head *next, *pre, *head;
+        struct imapper *pre_ent, *next_ent;
+        head = mappers;
+        if (list_empty(head))
+                return 0;
+        pre = (entry->list.prev == head) ? head->prev : entry->list.prev;
+        next = (entry->list.next == head) ? head->next : entry->list.next;
+        if (pre == &entry->list) {
+                /* entry is the only one node in mappers list */
+                entry->next = entry->addr = entry->user = entry->slot = 0;
+                map_op(data, entry);
+                list_del(&entry->list);
+                return 0;
+        }
+        pre_ent = list_entry(pre, struct imapper, list);
+        next_ent = list_entry(next, struct imapper, list);
+        pre_ent->next = next_ent->addr;
+        map_op(data, pre_ent);
+        list_del(&entry->list);
+        return 0;
+}
+void free_input_mapper_list(struct list_head *head)
+{
+        struct imapper *entry;
+        struct list_head *pos;
+        while (!list_empty(head)) {
+                pos = head->next;
+                list_del(pos);
+                entry = list_entry(pos, struct imapper, list);
+                kfree(entry);
+        }
+}
diff --git a/sound/pci/ctxfi/ctimap.h b/sound/pci/ctxfi/ctimap.h
new file mode 100644
index 000000000000..53ccf9be8b68
--- /dev/null
+++ b/sound/pci/ctxfi/ctimap.h
@@ -0,0 +1,40 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File        ctimap.h
+ *
+ * @Brief
+ * This file contains the definition of generic input mapper operations
+ * for input mapper management.
+ *
+ * @Author      Liu Chun
+ * @Date        May 23 2008
+ *
+ */
+#ifndef CTIMAP_H
+#define CTIMAP_H
+#include <linux/list.h>
+struct imapper {
+        unsigned short slot; /* the id of the slot containing input data */
+        unsigned short user; /* the id of the user resource consuming data */
+        unsigned short addr; /* the input mapper ram id */
+        unsigned short next; /* the next input mapper ram id */
+        struct list_head        list;
+};
+int input_mapper_add(struct list_head *mappers, struct imapper *entry,
+                     int (*map_op)(void *, struct imapper *), void *data);
+int input_mapper_delete(struct list_head *mappers, struct imapper *entry,
+                     int (*map_op)(void *, struct imapper *), void *data);
+void free_input_mapper_list(struct list_head *mappers);
+#endif /* CTIMAP_H */
diff --git a/sound/pci/ctxfi/ctmixer.c b/sound/pci/ctxfi/ctmixer.c
new file mode 100644
index 000000000000..666722d9de41
--- /dev/null
+++ b/sound/pci/ctxfi/ctmixer.c
@@ -0,0 +1,1123 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File        ctmixer.c
+ *
+ * @Brief
+ * This file contains the implementation of alsa mixer device functions.
+ *
+ * @Author      Liu Chun
+ * @Date        May 28 2008
+ *
+ */
+#include "ctmixer.h"
+#include "ctamixer.h"
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/control.h>
+#include <sound/asoundef.h>
+#include <sound/pcm.h>
+#include <sound/tlv.h>
+enum CT_SUM_CTL {
+        SUM_IN_F,
+        SUM_IN_R,
+        SUM_IN_C,
+        SUM_IN_S,
+        SUM_IN_F_C,
+        NUM_CT_SUMS
+};
+enum CT_AMIXER_CTL {
+        /* volume control mixers */
+        AMIXER_MASTER_F,
+        AMIXER_MASTER_R,
+        AMIXER_MASTER_C,
+        AMIXER_MASTER_S,
+        AMIXER_PCM_F,
+        AMIXER_PCM_R,
+        AMIXER_PCM_C,
+        AMIXER_PCM_S,
+        AMIXER_SPDIFI,
+        AMIXER_LINEIN,
+        AMIXER_MIC,
+        AMIXER_SPDIFO,
+        AMIXER_WAVE_F,
+        AMIXER_WAVE_R,
+        AMIXER_WAVE_C,
+        AMIXER_WAVE_S,
+        AMIXER_MASTER_F_C,
+        AMIXER_PCM_F_C,
+        AMIXER_SPDIFI_C,
+        AMIXER_LINEIN_C,
+        AMIXER_MIC_C,
+        /* this should always be the last one */
+        NUM_CT_AMIXERS
+};
+enum CTALSA_MIXER_CTL {
+        /* volume control mixers */
+        MIXER_MASTER_P,
+        MIXER_PCM_P,
+        MIXER_LINEIN_P,
+        MIXER_MIC_P,
+        MIXER_SPDIFI_P,
+        MIXER_SPDIFO_P,
+        MIXER_WAVEF_P,
+        MIXER_WAVER_P,
+        MIXER_WAVEC_P,
+        MIXER_WAVES_P,
+        MIXER_MASTER_C,
+        MIXER_PCM_C,
+        MIXER_LINEIN_C,
+        MIXER_MIC_C,
+        MIXER_SPDIFI_C,
+        /* switch control mixers */
+        MIXER_PCM_C_S,
+        MIXER_LINEIN_C_S,
+        MIXER_MIC_C_S,
+        MIXER_SPDIFI_C_S,
+        MIXER_LINEIN_P_S,
+        MIXER_SPDIFO_P_S,
+        MIXER_SPDIFI_P_S,
+        MIXER_WAVEF_P_S,
+        MIXER_WAVER_P_S,
+        MIXER_WAVEC_P_S,
+        MIXER_WAVES_P_S,
+        MIXER_DIGITAL_IO_S,
+        MIXER_IEC958_MASK,
+        MIXER_IEC958_DEFAULT,
+        MIXER_IEC958_STREAM,
+        /* this should always be the last one */
+        NUM_CTALSA_MIXERS
+};
+#define VOL_MIXER_START         MIXER_MASTER_P
+#define VOL_MIXER_END           MIXER_SPDIFI_C
+#define VOL_MIXER_NUM           (VOL_MIXER_END - VOL_MIXER_START + 1)
+#define SWH_MIXER_START         MIXER_PCM_C_S
+#define SWH_MIXER_END           MIXER_DIGITAL_IO_S
+#define SWH_CAPTURE_START       MIXER_PCM_C_S
+#define SWH_CAPTURE_END         MIXER_SPDIFI_C_S
+#define CHN_NUM         2
+struct ct_kcontrol_init {
+        unsigned char ctl;
+        char *name;
+};
+static struct ct_kcontrol_init
+ct_kcontrol_init_table[NUM_CTALSA_MIXERS] = {
+        [MIXER_MASTER_P] = {
+                .ctl = 1,
+                .name = "Master Playback Volume",
+        },
+        [MIXER_MASTER_C] = {
+                .ctl = 1,
+                .name = "Master Capture Volume",
+        },
+        [MIXER_PCM_P] = {
+                .ctl = 1,
+                .name = "PCM Playback Volume",
+        },
+        [MIXER_PCM_C] = {
+                .ctl = 1,
+                .name = "PCM Capture Volume",
+        },
+        [MIXER_LINEIN_P] = {
+                .ctl = 1,
+                .name = "Line-in Playback Volume",
+        },
+        [MIXER_LINEIN_C] = {
+                .ctl = 1,
+                .name = "Line-in Capture Volume",
+        },
+        [MIXER_MIC_P] = {
+                .ctl = 1,
+                .name = "Mic Playback Volume",
+        },
+        [MIXER_MIC_C] = {
+                .ctl = 1,
+                .name = "Mic Capture Volume",
+        },
+        [MIXER_SPDIFI_P] = {
+                .ctl = 1,
+                .name = "S/PDIF-in Playback Volume",
+        },
+        [MIXER_SPDIFI_C] = {
+                .ctl = 1,
+                .name = "S/PDIF-in Capture Volume",
+        },
+        [MIXER_SPDIFO_P] = {
+                .ctl = 1,
+                .name = "S/PDIF-out Playback Volume",
+        },
+        [MIXER_WAVEF_P] = {
+                .ctl = 1,
+                .name = "Front Playback Volume",
+        },
+        [MIXER_WAVES_P] = {
+                .ctl = 1,
+                .name = "Side Playback Volume",
+        },
+        [MIXER_WAVEC_P] = {
+                .ctl = 1,
+                .name = "Center/LFE Playback Volume",
+        },
+        [MIXER_WAVER_P] = {
+                .ctl = 1,
+                .name = "Surround Playback Volume",
+        },
+        [MIXER_PCM_C_S] = {
+                .ctl = 1,
+                .name = "PCM Capture Switch",
+        },
+        [MIXER_LINEIN_C_S] = {
+                .ctl = 1,
+                .name = "Line-in Capture Switch",
+        },
+        [MIXER_MIC_C_S] = {
+                .ctl = 1,
+                .name = "Mic Capture Switch",
+        },
+        [MIXER_SPDIFI_C_S] = {
+                .ctl = 1,
+                .name = "S/PDIF-in Capture Switch",
+        },
+        [MIXER_LINEIN_P_S] = {
+                .ctl = 1,
+                .name = "Line-in Playback Switch",
+        },
+        [MIXER_SPDIFO_P_S] = {
+                .ctl = 1,
+                .name = "S/PDIF-out Playback Switch",
+        },
+        [MIXER_SPDIFI_P_S] = {
+                .ctl = 1,
+                .name = "S/PDIF-in Playback Switch",
+        },
+        [MIXER_WAVEF_P_S] = {
+                .ctl = 1,
+                .name = "Front Playback Switch",
+        },
+        [MIXER_WAVES_P_S] = {
+                .ctl = 1,
+                .name = "Side Playback Switch",
+        },
+        [MIXER_WAVEC_P_S] = {
+                .ctl = 1,
+                .name = "Center/LFE Playback Switch",
+        },
+        [MIXER_WAVER_P_S] = {
+                .ctl = 1,
+                .name = "Surround Playback Switch",
+        },
+        [MIXER_DIGITAL_IO_S] = {
+                .ctl = 0,
+                .name = "Digit-IO Playback Switch",
+        },
+};
+static void
+ct_mixer_recording_select(struct ct_mixer *mixer, enum CT_AMIXER_CTL type);
+static void
+ct_mixer_recording_unselect(struct ct_mixer *mixer, enum CT_AMIXER_CTL type);
+static struct snd_kcontrol *kctls[2] = {NULL};
+static enum CT_AMIXER_CTL get_amixer_index(enum CTALSA_MIXER_CTL alsa_index)
+{
+        switch (alsa_index) {
+        case MIXER_MASTER_P:    return AMIXER_MASTER_F;
+        case MIXER_MASTER_C:    return AMIXER_MASTER_F_C;
+        case MIXER_PCM_P:       return AMIXER_PCM_F;
+        case MIXER_PCM_C:
+        case MIXER_PCM_C_S:     return AMIXER_PCM_F_C;
+        case MIXER_LINEIN_P:    return AMIXER_LINEIN;
+        case MIXER_LINEIN_C:
+        case MIXER_LINEIN_C_S:  return AMIXER_LINEIN_C;
+        case MIXER_MIC_P:       return AMIXER_MIC;
+        case MIXER_MIC_C:
+        case MIXER_MIC_C_S:     return AMIXER_MIC_C;
+        case MIXER_SPDIFI_P:    return AMIXER_SPDIFI;
+        case MIXER_SPDIFI_C:
+        case MIXER_SPDIFI_C_S:  return AMIXER_SPDIFI_C;
+        case MIXER_SPDIFO_P:    return AMIXER_SPDIFO;
+        case MIXER_WAVEF_P:     return AMIXER_WAVE_F;
+        case MIXER_WAVES_P:     return AMIXER_WAVE_S;
+        case MIXER_WAVEC_P:     return AMIXER_WAVE_C;
+        case MIXER_WAVER_P:     return AMIXER_WAVE_R;
+        default:                return NUM_CT_AMIXERS;
+        }
+}
+static enum CT_AMIXER_CTL get_recording_amixer(enum CT_AMIXER_CTL index)
+{
+        switch (index) {
+        case AMIXER_MASTER_F:   return AMIXER_MASTER_F_C;
+        case AMIXER_PCM_F:      return AMIXER_PCM_F_C;
+        case AMIXER_SPDIFI:     return AMIXER_SPDIFI_C;
+        case AMIXER_LINEIN:     return AMIXER_LINEIN_C;
+        case AMIXER_MIC:        return AMIXER_MIC_C;
+        default:                return NUM_CT_AMIXERS;
+        }
+}
+static unsigned char
+get_switch_state(struct ct_mixer *mixer, enum CTALSA_MIXER_CTL type)
+{
+        return (mixer->switch_state & (0x1 << (type - SWH_MIXER_START)))
+                ? 1 : 0;
+}
+static void
+set_switch_state(struct ct_mixer *mixer,
+                 enum CTALSA_MIXER_CTL type, unsigned char state)
+{
+        if (state)
+                mixer->switch_state |= (0x1 << (type - SWH_MIXER_START));
+        else
+                mixer->switch_state &= ~(0x1 << (type - SWH_MIXER_START));
+}
+#if 0 /* not used */
+/* Map integer value ranging from 0 to 65535 to 14-bit float value ranging
+ * from 2^-6 to (1+1023/1024) */
+static unsigned int uint16_to_float14(unsigned int x)
+{
+        unsigned int i;
+        if (x < 17)
+                return 0;
+        x *= 2031;
+        x /= 65535;
+        x += 16;
+        /* i <= 6 */
+        for (i = 0; !(x & 0x400); i++)
+                x <<= 1;
+        x = (((7 - i) & 0x7) << 10) | (x & 0x3ff);
+        return x;
+}
+static unsigned int float14_to_uint16(unsigned int x)
+{
+        unsigned int e;
+        if (!x)
+                return x;
+        e = (x >> 10) & 0x7;
+        x &= 0x3ff;
+        x += 1024;
+        x >>= (7 - e);
+        x -= 16;
+        x *= 65535;
+        x /= 2031;
+        return x;
+}
+#endif /* not used */
+#define VOL_SCALE       0x1c
+#define VOL_MAX         0x100
+static const DECLARE_TLV_DB_SCALE(ct_vol_db_scale, -6400, 25, 1);
+static int ct_alsa_mix_volume_info(struct snd_kcontrol *kcontrol,
+                                   struct snd_ctl_elem_info *uinfo)
+{
+        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+        uinfo->count = 2;
+        uinfo->value.integer.min = 0;
+        uinfo->value.integer.max = VOL_MAX;
+        return 0;
+}
+static int ct_alsa_mix_volume_get(struct snd_kcontrol *kcontrol,
+                                  struct snd_ctl_elem_value *ucontrol)
+{
+        struct ct_atc *atc = snd_kcontrol_chip(kcontrol);
+        enum CT_AMIXER_CTL type = get_amixer_index(kcontrol->private_value);
+        struct amixer *amixer;
+        int i, val;
+        for (i = 0; i < 2; i++) {
+                amixer = ((struct ct_mixer *)atc->mixer)->
+                                                amixers[type*CHN_NUM+i];
+                val = amixer->ops->get_scale(amixer) / VOL_SCALE;
+                if (val < 0)
+                        val = 0;
+                else if (val > VOL_MAX)
+                        val = VOL_MAX;
+                ucontrol->value.integer.value[i] = val;
+        }
+        return 0;
+}
+static int ct_alsa_mix_volume_put(struct snd_kcontrol *kcontrol,
+                                  struct snd_ctl_elem_value *ucontrol)
+{
+        struct ct_atc *atc = snd_kcontrol_chip(kcontrol);
+        struct ct_mixer *mixer = atc->mixer;
+        enum CT_AMIXER_CTL type = get_amixer_index(kcontrol->private_value);
+        struct amixer *amixer;
+        int i, j, val, oval, change = 0;
+        for (i = 0; i < 2; i++) {
+                val = ucontrol->value.integer.value[i];
+                if (val < 0)
+                        val = 0;
+                else if (val > VOL_MAX)
+                        val = VOL_MAX;
+                val *= VOL_SCALE;
+                amixer = mixer->amixers[type*CHN_NUM+i];
+                oval = amixer->ops->get_scale(amixer);
+                if (val != oval) {
+                        amixer->ops->set_scale(amixer, val);
+                        amixer->ops->commit_write(amixer);
+                        change = 1;
+                        /* Synchronize Master/PCM playback AMIXERs. */
+                        if (AMIXER_MASTER_F == type || AMIXER_PCM_F == type) {
+                                for (j = 1; j < 4; j++) {
+                                        amixer = mixer->
+                                                amixers[(type+j)*CHN_NUM+i];
+                                        amixer->ops->set_scale(amixer, val);
+                                        amixer->ops->commit_write(amixer);
+                                }
+                        }
+                }
+        }
+        return change;
+}
+static struct snd_kcontrol_new vol_ctl = {
+        .access         = SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ,
+        .iface          = SNDRV_CTL_ELEM_IFACE_MIXER,
+        .info           = ct_alsa_mix_volume_info,
+        .get            = ct_alsa_mix_volume_get,
+        .put            = ct_alsa_mix_volume_put,
+        .tlv            = { .p =  ct_vol_db_scale },
+};
+static void
+do_line_mic_switch(struct ct_atc *atc, enum CTALSA_MIXER_CTL type)
+{
+        if (MIXER_LINEIN_C_S == type) {
+                atc->select_line_in(atc);
+                set_switch_state(atc->mixer, MIXER_MIC_C_S, 0);
+                snd_ctl_notify(atc->card, SNDRV_CTL_EVENT_MASK_VALUE,
+                                                        &kctls[1]->id);
+        } else if (MIXER_MIC_C_S == type) {
+                atc->select_mic_in(atc);
+                set_switch_state(atc->mixer, MIXER_LINEIN_C_S, 0);
+                snd_ctl_notify(atc->card, SNDRV_CTL_EVENT_MASK_VALUE,
+                                                        &kctls[0]->id);
+        }
+}
+static void
+do_digit_io_switch(struct ct_atc *atc, int state)
+{
+        struct ct_mixer *mixer = atc->mixer;
+        if (state) {
+                atc->select_digit_io(atc);
+                atc->spdif_out_unmute(atc,
+                                get_switch_state(mixer, MIXER_SPDIFO_P_S));
+                atc->spdif_in_unmute(atc, 1);
+                atc->line_in_unmute(atc, 0);
+                return;
+        }
+        if (get_switch_state(mixer, MIXER_LINEIN_C_S))
+                atc->select_line_in(atc);
+        else if (get_switch_state(mixer, MIXER_MIC_C_S))
+                atc->select_mic_in(atc);
+        atc->spdif_out_unmute(atc, 0);
+        atc->spdif_in_unmute(atc, 0);
+        atc->line_in_unmute(atc, 1);
+        return;
+}
+static int ct_alsa_mix_switch_info(struct snd_kcontrol *kcontrol,
+                                   struct snd_ctl_elem_info *uinfo)
+{
+        uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+        uinfo->count = 1;
+        uinfo->value.integer.min = 0;
+        uinfo->value.integer.max = 1;
+        uinfo->value.integer.step = 1;
+        return 0;
+}
+static int ct_alsa_mix_switch_get(struct snd_kcontrol *kcontrol,
+                                  struct snd_ctl_elem_value *ucontrol)
+{
+        struct ct_mixer *mixer =
+                ((struct ct_atc *)snd_kcontrol_chip(kcontrol))->mixer;
+        enum CTALSA_MIXER_CTL type = kcontrol->private_value;
+        ucontrol->value.integer.value[0] = get_switch_state(mixer, type);
+        return 0;
+}
+static int ct_alsa_mix_switch_put(struct snd_kcontrol *kcontrol,
+                                  struct snd_ctl_elem_value *ucontrol)
+{
+        struct ct_atc *atc = snd_kcontrol_chip(kcontrol);
+        struct ct_mixer *mixer = atc->mixer;
+        enum CTALSA_MIXER_CTL type = kcontrol->private_value;
+        int state;
+        state = ucontrol->value.integer.value[0];
+        if (get_switch_state(mixer, type) == state)
+                return 0;
+        set_switch_state(mixer, type, state);
+        /* Do changes in mixer. */
+        if ((SWH_CAPTURE_START <= type) && (SWH_CAPTURE_END >= type)) {
+                if (state) {
+                        ct_mixer_recording_select(mixer,
+                                                  get_amixer_index(type));
+                } else {
+                        ct_mixer_recording_unselect(mixer,
+                                                    get_amixer_index(type));
+                }
+        }
+        /* Do changes out of mixer. */
+        if (state && (MIXER_LINEIN_C_S == type || MIXER_MIC_C_S == type))
+                do_line_mic_switch(atc, type);
+        else if (MIXER_WAVEF_P_S == type)
+                atc->line_front_unmute(atc, state);
+        else if (MIXER_WAVES_P_S == type)
+                atc->line_surround_unmute(atc, state);
+        else if (MIXER_WAVEC_P_S == type)
+                atc->line_clfe_unmute(atc, state);
+        else if (MIXER_WAVER_P_S == type)
+                atc->line_rear_unmute(atc, state);
+        else if (MIXER_LINEIN_P_S == type)
+                atc->line_in_unmute(atc, state);
+        else if (MIXER_SPDIFO_P_S == type)
+                atc->spdif_out_unmute(atc, state);
+        else if (MIXER_SPDIFI_P_S == type)
+                atc->spdif_in_unmute(atc, state);
+        else if (MIXER_DIGITAL_IO_S == type)
+                do_digit_io_switch(atc, state);
+        return 1;
+}
+static struct snd_kcontrol_new swh_ctl = {
+        .access         = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+        .iface          = SNDRV_CTL_ELEM_IFACE_MIXER,
+        .info           = ct_alsa_mix_switch_info,
+        .get            = ct_alsa_mix_switch_get,
+        .put            = ct_alsa_mix_switch_put
+};
+static int ct_spdif_info(struct snd_kcontrol *kcontrol,
+                         struct snd_ctl_elem_info *uinfo)
+{
+        uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+        uinfo->count = 1;
+        return 0;
+}
+static int ct_spdif_get_mask(struct snd_kcontrol *kcontrol,
+                             struct snd_ctl_elem_value *ucontrol)
+{
+        ucontrol->value.iec958.status[0] = 0xff;
+        ucontrol->value.iec958.status[1] = 0xff;
+        ucontrol->value.iec958.status[2] = 0xff;
+        ucontrol->value.iec958.status[3] = 0xff;
+        return 0;
+}
+static int ct_spdif_default_get(struct snd_kcontrol *kcontrol,
+                                struct snd_ctl_elem_value *ucontrol)
+{
+        unsigned int status = SNDRV_PCM_DEFAULT_CON_SPDIF;
+        ucontrol->value.iec958.status[0] = (status >> 0) & 0xff;
+        ucontrol->value.iec958.status[1] = (status >> 8) & 0xff;
+        ucontrol->value.iec958.status[2] = (status >> 16) & 0xff;
+        ucontrol->value.iec958.status[3] = (status >> 24) & 0xff;
+        return 0;
+}
+static int ct_spdif_get(struct snd_kcontrol *kcontrol,
+                        struct snd_ctl_elem_value *ucontrol)
+{
+        struct ct_atc *atc = snd_kcontrol_chip(kcontrol);
+        unsigned int status;
+        atc->spdif_out_get_status(atc, &status);
+        ucontrol->value.iec958.status[0] = (status >> 0) & 0xff;
+        ucontrol->value.iec958.status[1] = (status >> 8) & 0xff;
+        ucontrol->value.iec958.status[2] = (status >> 16) & 0xff;
+        ucontrol->value.iec958.status[3] = (status >> 24) & 0xff;
+        return 0;
+}
+static int ct_spdif_put(struct snd_kcontrol *kcontrol,
+                        struct snd_ctl_elem_value *ucontrol)
+{
+        struct ct_atc *atc = snd_kcontrol_chip(kcontrol);
+        int change;
+        unsigned int status, old_status;
+        status = (ucontrol->value.iec958.status[0] << 0) |
+                 (ucontrol->value.iec958.status[1] << 8) |
+                 (ucontrol->value.iec958.status[2] << 16) |
+                 (ucontrol->value.iec958.status[3] << 24);
+        atc->spdif_out_get_status(atc, &old_status);
+        change = (old_status != status);
+        if (change)
+                atc->spdif_out_set_status(atc, status);
+        return change;
+}
+static struct snd_kcontrol_new iec958_mask_ctl = {
+        .access         = SNDRV_CTL_ELEM_ACCESS_READ,
+        .iface          = SNDRV_CTL_ELEM_IFACE_PCM,
+        .name           = SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK),
+        .count          = 1,
+        .info           = ct_spdif_info,
+        .get            = ct_spdif_get_mask,
+        .private_value  = MIXER_IEC958_MASK
+};
+static struct snd_kcontrol_new iec958_default_ctl = {
+        .iface          = SNDRV_CTL_ELEM_IFACE_PCM,
+        .name           = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
+        .count          = 1,
+        .info           = ct_spdif_info,
+        .get            = ct_spdif_default_get,
+        .put            = ct_spdif_put,
+        .private_value  = MIXER_IEC958_DEFAULT
+};
+static struct snd_kcontrol_new iec958_ctl = {
+        .access         = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+        .iface          = SNDRV_CTL_ELEM_IFACE_PCM,
+        .name           = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PCM_STREAM),
+        .count          = 1,
+        .info           = ct_spdif_info,
+        .get            = ct_spdif_get,
+        .put            = ct_spdif_put,
+        .private_value  = MIXER_IEC958_STREAM
+};
+#define NUM_IEC958_CTL 3
+static int
+ct_mixer_kcontrol_new(struct ct_mixer *mixer, struct snd_kcontrol_new *new)
+{
+        struct snd_kcontrol *kctl;
+        int err;
+        kctl = snd_ctl_new1(new, mixer->atc);
+        if (NULL == kctl)
+                return -ENOMEM;
+        if (SNDRV_CTL_ELEM_IFACE_PCM == kctl->id.iface)
+                kctl->id.device = IEC958;
+        err = snd_ctl_add(mixer->atc->card, kctl);
+        if (err)
+                return err;
+        switch (new->private_value) {
+        case MIXER_LINEIN_C_S:
+                kctls[0] = kctl; break;
+        case MIXER_MIC_C_S:
+                kctls[1] = kctl; break;
+        default:
+                break;
+        }
+        return 0;
+}
+static int ct_mixer_kcontrols_create(struct ct_mixer *mixer)
+{
+        enum CTALSA_MIXER_CTL type;
+        struct ct_atc *atc = mixer->atc;
+        int err;
+        /* Create snd kcontrol instances on demand */
+        for (type = VOL_MIXER_START; type <= VOL_MIXER_END; type++) {
+                if (ct_kcontrol_init_table[type].ctl) {
+                        vol_ctl.name = ct_kcontrol_init_table[type].name;
+                        vol_ctl.private_value = (unsigned long)type;
+                        err = ct_mixer_kcontrol_new(mixer, &vol_ctl);
+                        if (err)
+                                return err;
+                }
+        }
+        ct_kcontrol_init_table[MIXER_DIGITAL_IO_S].ctl =
+                                        atc->have_digit_io_switch(atc);
+        for (type = SWH_MIXER_START; type <= SWH_MIXER_END; type++) {
+                if (ct_kcontrol_init_table[type].ctl) {
+                        swh_ctl.name = ct_kcontrol_init_table[type].name;
+                        swh_ctl.private_value = (unsigned long)type;
+                        err = ct_mixer_kcontrol_new(mixer, &swh_ctl);
+                        if (err)
+                                return err;
+                }
+        }
+        err = ct_mixer_kcontrol_new(mixer, &iec958_mask_ctl);
+        if (err)
+                return err;
+        err = ct_mixer_kcontrol_new(mixer, &iec958_default_ctl);
+        if (err)
+                return err;
+        err = ct_mixer_kcontrol_new(mixer, &iec958_ctl);
+        if (err)
+                return err;
+        atc->line_front_unmute(atc, 1);
+        set_switch_state(mixer, MIXER_WAVEF_P_S, 1);
+        atc->line_surround_unmute(atc, 0);
+        set_switch_state(mixer, MIXER_WAVES_P_S, 0);
+        atc->line_clfe_unmute(atc, 0);
+        set_switch_state(mixer, MIXER_WAVEC_P_S, 0);
+        atc->line_rear_unmute(atc, 0);
+        set_switch_state(mixer, MIXER_WAVER_P_S, 0);
+        atc->spdif_out_unmute(atc, 0);
+        set_switch_state(mixer, MIXER_SPDIFO_P_S, 0);
+        atc->line_in_unmute(atc, 0);
+        set_switch_state(mixer, MIXER_LINEIN_P_S, 0);
+        atc->spdif_in_unmute(atc, 0);
+        set_switch_state(mixer, MIXER_SPDIFI_P_S, 0);
+        set_switch_state(mixer, MIXER_PCM_C_S, 1);
+        set_switch_state(mixer, MIXER_LINEIN_C_S, 1);
+        set_switch_state(mixer, MIXER_SPDIFI_C_S, 1);
+        return 0;
+}
+static void
+ct_mixer_recording_select(struct ct_mixer *mixer, enum CT_AMIXER_CTL type)
+{
+        struct amixer *amix_d;
+        struct sum *sum_c;
+        int i;
+        for (i = 0; i < 2; i++) {
+                amix_d = mixer->amixers[type*CHN_NUM+i];
+                sum_c = mixer->sums[SUM_IN_F_C*CHN_NUM+i];
+                amix_d->ops->set_sum(amix_d, sum_c);
+                amix_d->ops->commit_write(amix_d);
+        }
+}
+static void
+ct_mixer_recording_unselect(struct ct_mixer *mixer, enum CT_AMIXER_CTL type)
+{
+        struct amixer *amix_d;
+        int i;
+        for (i = 0; i < 2; i++) {
+                amix_d = mixer->amixers[type*CHN_NUM+i];
+                amix_d->ops->set_sum(amix_d, NULL);
+                amix_d->ops->commit_write(amix_d);
+        }
+}
+static int ct_mixer_get_resources(struct ct_mixer *mixer)
+{
+        struct sum_mgr *sum_mgr;
+        struct sum *sum;
+        struct sum_desc sum_desc = {0};
+        struct amixer_mgr *amixer_mgr;
+        struct amixer *amixer;
+        struct amixer_desc am_desc = {0};
+        int err;
+        int i;
+        /* Allocate sum resources for mixer obj */
+        sum_mgr = (struct sum_mgr *)mixer->atc->rsc_mgrs[SUM];
+        sum_desc.msr = mixer->atc->msr;
+        for (i = 0; i < (NUM_CT_SUMS * CHN_NUM); i++) {
+                err = sum_mgr->get_sum(sum_mgr, &sum_desc, &sum);
+                if (err) {
+                        printk(KERN_ERR "ctxfi:Failed to get sum resources for "
+                                          "front output!\n");
+                        break;
+                }
+                mixer->sums[i] = sum;
+        }
+        if (err)
+                goto error1;
+        /* Allocate amixer resources for mixer obj */
+        amixer_mgr = (struct amixer_mgr *)mixer->atc->rsc_mgrs[AMIXER];
+        am_desc.msr = mixer->atc->msr;
+        for (i = 0; i < (NUM_CT_AMIXERS * CHN_NUM); i++) {
+                err = amixer_mgr->get_amixer(amixer_mgr, &am_desc, &amixer);
+                if (err) {
+                        printk(KERN_ERR "ctxfi:Failed to get amixer resources "
+                               "for mixer obj!\n");
+                        break;
+                }
+                mixer->amixers[i] = amixer;
+        }
+        if (err)
+                goto error2;
+        return 0;
+error2:
+        for (i = 0; i < (NUM_CT_AMIXERS * CHN_NUM); i++) {
+                if (NULL != mixer->amixers[i]) {
+                        amixer = mixer->amixers[i];
+                        amixer_mgr->put_amixer(amixer_mgr, amixer);
+                        mixer->amixers[i] = NULL;
+                }
+        }
+error1:
+        for (i = 0; i < (NUM_CT_SUMS * CHN_NUM); i++) {
+                if (NULL != mixer->sums[i]) {
+                        sum_mgr->put_sum(sum_mgr, (struct sum *)mixer->sums[i]);
+                        mixer->sums[i] = NULL;
+                }
+        }
+        return err;
+}
+static int ct_mixer_get_mem(struct ct_mixer **rmixer)
+{
+        struct ct_mixer *mixer;
+        int err;
+        *rmixer = NULL;
+        /* Allocate mem for mixer obj */
+        mixer = kzalloc(sizeof(*mixer), GFP_KERNEL);
+        if (NULL == mixer)
+                return -ENOMEM;
+        mixer->amixers = kzalloc(sizeof(void *)*(NUM_CT_AMIXERS*CHN_NUM),
+                                 GFP_KERNEL);
+        if (NULL == mixer->amixers) {
+                err = -ENOMEM;
+                goto error1;
+        }
+        mixer->sums = kzalloc(sizeof(void *)*(NUM_CT_SUMS*CHN_NUM), GFP_KERNEL);
+        if (NULL == mixer->sums) {
+                err = -ENOMEM;
+                goto error2;
+        }
+        *rmixer = mixer;
+        return 0;
+error2:
+        kfree(mixer->amixers);
+error1:
+        kfree(mixer);
+        return err;
+}
+static int ct_mixer_topology_build(struct ct_mixer *mixer)
+{
+        struct sum *sum;
+        struct amixer *amix_d, *amix_s;
+        enum CT_AMIXER_CTL i, j;
+        /* Build topology from destination to source */
+        /* Set up Master mixer */
+        for (i = AMIXER_MASTER_F, j = SUM_IN_F;
+                                        i <= AMIXER_MASTER_S; i++, j++) {
+                amix_d = mixer->amixers[i*CHN_NUM];
+                sum = mixer->sums[j*CHN_NUM];
+                amix_d->ops->setup(amix_d, &sum->rsc, INIT_VOL, NULL);
+                amix_d = mixer->amixers[i*CHN_NUM+1];
+                sum = mixer->sums[j*CHN_NUM+1];
+                amix_d->ops->setup(amix_d, &sum->rsc, INIT_VOL, NULL);
+        }
+        /* Set up Wave-out mixer */
+        for (i = AMIXER_WAVE_F, j = AMIXER_MASTER_F;
+                                        i <= AMIXER_WAVE_S; i++, j++) {
+                amix_d = mixer->amixers[i*CHN_NUM];
+                amix_s = mixer->amixers[j*CHN_NUM];
+                amix_d->ops->setup(amix_d, &amix_s->rsc, INIT_VOL, NULL);
+                amix_d = mixer->amixers[i*CHN_NUM+1];
+                amix_s = mixer->amixers[j*CHN_NUM+1];
+                amix_d->ops->setup(amix_d, &amix_s->rsc, INIT_VOL, NULL);
+        }
+        /* Set up S/PDIF-out mixer */
+        amix_d = mixer->amixers[AMIXER_SPDIFO*CHN_NUM];
+        amix_s = mixer->amixers[AMIXER_MASTER_F*CHN_NUM];
+        amix_d->ops->setup(amix_d, &amix_s->rsc, INIT_VOL, NULL);
+        amix_d = mixer->amixers[AMIXER_SPDIFO*CHN_NUM+1];
+        amix_s = mixer->amixers[AMIXER_MASTER_F*CHN_NUM+1];
+        amix_d->ops->setup(amix_d, &amix_s->rsc, INIT_VOL, NULL);
+        /* Set up PCM-in mixer */
+        for (i = AMIXER_PCM_F, j = SUM_IN_F; i <= AMIXER_PCM_S; i++, j++) {
+                amix_d = mixer->amixers[i*CHN_NUM];
+                sum = mixer->sums[j*CHN_NUM];
+                amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+                amix_d = mixer->amixers[i*CHN_NUM+1];
+                sum = mixer->sums[j*CHN_NUM+1];
+                amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+        }
+        /* Set up Line-in mixer */
+        amix_d = mixer->amixers[AMIXER_LINEIN*CHN_NUM];
+        sum = mixer->sums[SUM_IN_F*CHN_NUM];
+        amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+        amix_d = mixer->amixers[AMIXER_LINEIN*CHN_NUM+1];
+        sum = mixer->sums[SUM_IN_F*CHN_NUM+1];
+        amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+        /* Set up Mic-in mixer */
+        amix_d = mixer->amixers[AMIXER_MIC*CHN_NUM];
+        sum = mixer->sums[SUM_IN_F*CHN_NUM];
+        amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+        amix_d = mixer->amixers[AMIXER_MIC*CHN_NUM+1];
+        sum = mixer->sums[SUM_IN_F*CHN_NUM+1];
+        amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+        /* Set up S/PDIF-in mixer */
+        amix_d = mixer->amixers[AMIXER_SPDIFI*CHN_NUM];
+        sum = mixer->sums[SUM_IN_F*CHN_NUM];
+        amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+        amix_d = mixer->amixers[AMIXER_SPDIFI*CHN_NUM+1];
+        sum = mixer->sums[SUM_IN_F*CHN_NUM+1];
+        amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+        /* Set up Master recording mixer */
+        amix_d = mixer->amixers[AMIXER_MASTER_F_C*CHN_NUM];
+        sum = mixer->sums[SUM_IN_F_C*CHN_NUM];
+        amix_d->ops->setup(amix_d, &sum->rsc, INIT_VOL, NULL);
+        amix_d = mixer->amixers[AMIXER_MASTER_F_C*CHN_NUM+1];
+        sum = mixer->sums[SUM_IN_F_C*CHN_NUM+1];
+        amix_d->ops->setup(amix_d, &sum->rsc, INIT_VOL, NULL);
+        /* Set up PCM-in recording mixer */
+        amix_d = mixer->amixers[AMIXER_PCM_F_C*CHN_NUM];
+        sum = mixer->sums[SUM_IN_F_C*CHN_NUM];
+        amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+        amix_d = mixer->amixers[AMIXER_PCM_F_C*CHN_NUM+1];
+        sum = mixer->sums[SUM_IN_F_C*CHN_NUM+1];
+        amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+        /* Set up Line-in recording mixer */
+        amix_d = mixer->amixers[AMIXER_LINEIN_C*CHN_NUM];
+        sum = mixer->sums[SUM_IN_F_C*CHN_NUM];
+        amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+        amix_d = mixer->amixers[AMIXER_LINEIN_C*CHN_NUM+1];
+        sum = mixer->sums[SUM_IN_F_C*CHN_NUM+1];
+        amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+        /* Set up Mic-in recording mixer */
+        amix_d = mixer->amixers[AMIXER_MIC_C*CHN_NUM];
+        sum = mixer->sums[SUM_IN_F_C*CHN_NUM];
+        amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+        amix_d = mixer->amixers[AMIXER_MIC_C*CHN_NUM+1];
+        sum = mixer->sums[SUM_IN_F_C*CHN_NUM+1];
+        amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+        /* Set up S/PDIF-in recording mixer */
+        amix_d = mixer->amixers[AMIXER_SPDIFI_C*CHN_NUM];
+        sum = mixer->sums[SUM_IN_F_C*CHN_NUM];
+        amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+        amix_d = mixer->amixers[AMIXER_SPDIFI_C*CHN_NUM+1];
+        sum = mixer->sums[SUM_IN_F_C*CHN_NUM+1];
+        amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+        return 0;
+}
+static int mixer_set_input_port(struct amixer *amixer, struct rsc *rsc)
+{
+        amixer->ops->set_input(amixer, rsc);
+        amixer->ops->commit_write(amixer);
+        return 0;
+}
+static enum CT_AMIXER_CTL port_to_amixer(enum MIXER_PORT_T type)
+{
+        switch (type) {
+        case MIX_WAVE_FRONT:    return AMIXER_WAVE_F;
+        case MIX_WAVE_SURROUND: return AMIXER_WAVE_S;
+        case MIX_WAVE_CENTLFE:  return AMIXER_WAVE_C;
+        case MIX_WAVE_REAR:     return AMIXER_WAVE_R;
+        case MIX_PCMO_FRONT:    return AMIXER_MASTER_F_C;
+        case MIX_SPDIF_OUT:     return AMIXER_SPDIFO;
+        case MIX_LINE_IN:       return AMIXER_LINEIN;
+        case MIX_MIC_IN:        return AMIXER_MIC;
+        case MIX_SPDIF_IN:      return AMIXER_SPDIFI;
+        case MIX_PCMI_FRONT:    return AMIXER_PCM_F;
+        case MIX_PCMI_SURROUND: return AMIXER_PCM_S;
+        case MIX_PCMI_CENTLFE:  return AMIXER_PCM_C;
+        case MIX_PCMI_REAR:     return AMIXER_PCM_R;
+        default:                return 0;
+        }
+}
+static int mixer_get_output_ports(struct ct_mixer *mixer,
+                                  enum MIXER_PORT_T type,
+                                  struct rsc **rleft, struct rsc **rright)
+{
+        enum CT_AMIXER_CTL amix = port_to_amixer(type);
+        if (NULL != rleft)
+                *rleft = &((struct amixer *)mixer->amixers[amix*CHN_NUM])->rsc;
+        if (NULL != rright)
+                *rright =
+                        &((struct amixer *)mixer->amixers[amix*CHN_NUM+1])->rsc;
+        return 0;
+}
+static int mixer_set_input_left(struct ct_mixer *mixer,
+                                enum MIXER_PORT_T type, struct rsc *rsc)
+{
+        enum CT_AMIXER_CTL amix = port_to_amixer(type);
+        mixer_set_input_port(mixer->amixers[amix*CHN_NUM], rsc);
+        amix = get_recording_amixer(amix);
+        if (amix < NUM_CT_AMIXERS)
+                mixer_set_input_port(mixer->amixers[amix*CHN_NUM], rsc);
+        return 0;
+}
+static int
+mixer_set_input_right(struct ct_mixer *mixer,
+                      enum MIXER_PORT_T type, struct rsc *rsc)
+{
+        enum CT_AMIXER_CTL amix = port_to_amixer(type);
+        mixer_set_input_port(mixer->amixers[amix*CHN_NUM+1], rsc);
+        amix = get_recording_amixer(amix);
+        if (amix < NUM_CT_AMIXERS)
+                mixer_set_input_port(mixer->amixers[amix*CHN_NUM+1], rsc);
+        return 0;
+}
+int ct_mixer_destroy(struct ct_mixer *mixer)
+{
+        struct sum_mgr *sum_mgr = (struct sum_mgr *)mixer->atc->rsc_mgrs[SUM];
+        struct amixer_mgr *amixer_mgr =
+                        (struct amixer_mgr *)mixer->atc->rsc_mgrs[AMIXER];
+        struct amixer *amixer;
+        int i = 0;
+        /* Release amixer resources */
+        for (i = 0; i < (NUM_CT_AMIXERS * CHN_NUM); i++) {
+                if (NULL != mixer->amixers[i]) {
+                        amixer = mixer->amixers[i];
+                        amixer_mgr->put_amixer(amixer_mgr, amixer);
+                }
+        }
+        /* Release sum resources */
+        for (i = 0; i < (NUM_CT_SUMS * CHN_NUM); i++) {
+                if (NULL != mixer->sums[i])
+                        sum_mgr->put_sum(sum_mgr, (struct sum *)mixer->sums[i]);
+        }
+        /* Release mem assigned to mixer object */
+        kfree(mixer->sums);
+        kfree(mixer->amixers);
+        kfree(mixer);
+        return 0;
+}
+int ct_mixer_create(struct ct_atc *atc, struct ct_mixer **rmixer)
+{
+        struct ct_mixer *mixer;
+        int err;
+        *rmixer = NULL;
+        /* Allocate mem for mixer obj */
+        err = ct_mixer_get_mem(&mixer);
+        if (err)
+                return err;
+        mixer->switch_state = 0;
+        mixer->atc = atc;
+        /* Set operations */
+        mixer->get_output_ports = mixer_get_output_ports;
+        mixer->set_input_left = mixer_set_input_left;
+        mixer->set_input_right = mixer_set_input_right;
+        /* Allocate chip resources for mixer obj */
+        err = ct_mixer_get_resources(mixer);
+        if (err)
+                goto error;
+        /* Build internal mixer topology */
+        ct_mixer_topology_build(mixer);
+        *rmixer = mixer;
+        return 0;
+error:
+        ct_mixer_destroy(mixer);
+        return err;
+}
+int ct_alsa_mix_create(struct ct_atc *atc,
+                       enum CTALSADEVS device,
+                       const char *device_name)
+{
+        int err;
+        /* Create snd kcontrol instances on demand */
+        /* vol_ctl.device = swh_ctl.device = device; */ /* better w/ device 0 */
+        err = ct_mixer_kcontrols_create((struct ct_mixer *)atc->mixer);
+        if (err)
+                return err;
+        strcpy(atc->card->mixername, device_name);
+        return 0;
+}
diff --git a/sound/pci/ctxfi/ctmixer.h b/sound/pci/ctxfi/ctmixer.h
new file mode 100644
index 000000000000..e2d96ebde746
--- /dev/null
+++ b/sound/pci/ctxfi/ctmixer.h
@@ -0,0 +1,67 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File        ctmixer.h
+ *
+ * @Brief
+ * This file contains the definition of the mixer device functions.
+ *
+ * @Author      Liu Chun
+ * @Date        Mar 28 2008
+ *
+ */
+#ifndef CTMIXER_H
+#define CTMIXER_H
+#include "ctatc.h"
+#include "ctresource.h"
+#define INIT_VOL        0x1c00
+enum MIXER_PORT_T {
+        MIX_WAVE_FRONT,
+        MIX_WAVE_REAR,
+        MIX_WAVE_CENTLFE,
+        MIX_WAVE_SURROUND,
+        MIX_SPDIF_OUT,
+        MIX_PCMO_FRONT,
+        MIX_MIC_IN,
+        MIX_LINE_IN,
+        MIX_SPDIF_IN,
+        MIX_PCMI_FRONT,
+        MIX_PCMI_REAR,
+        MIX_PCMI_CENTLFE,
+        MIX_PCMI_SURROUND,
+        NUM_MIX_PORTS
+};
+/* alsa mixer descriptor */
+struct ct_mixer {
+        struct ct_atc *atc;
+        void **amixers;         /* amixer resources for volume control */
+        void **sums;            /* sum resources for signal collection */
+        unsigned int switch_state; /* A bit-map to indicate state of switches */
+        int (*get_output_ports)(struct ct_mixer *mixer, enum MIXER_PORT_T type,
+                                  struct rsc **rleft, struct rsc **rright);
+        int (*set_input_left)(struct ct_mixer *mixer,
+                              enum MIXER_PORT_T type, struct rsc *rsc);
+        int (*set_input_right)(struct ct_mixer *mixer,
+                               enum MIXER_PORT_T type, struct rsc *rsc);
+};
+int ct_alsa_mix_create(struct ct_atc *atc,
+                       enum CTALSADEVS device,
+                       const char *device_name);
+int ct_mixer_create(struct ct_atc *atc, struct ct_mixer **rmixer);
+int ct_mixer_destroy(struct ct_mixer *mixer);
+#endif /* CTMIXER_H */
diff --git a/sound/pci/ctxfi/ctpcm.c b/sound/pci/ctxfi/ctpcm.c
new file mode 100644
index 000000000000..9e5c0c4da726
--- /dev/null
+++ b/sound/pci/ctxfi/ctpcm.c
@@ -0,0 +1,426 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File        ctpcm.c
+ *
+ * @Brief
+ * This file contains the definition of the pcm device functions.
+ *
+ * @Author      Liu Chun
+ * @Date        Apr 2 2008
+ *
+ */
+#include "ctpcm.h"
+#include "cttimer.h"
+#include <sound/pcm.h>
+/* Hardware descriptions for playback */
+static struct snd_pcm_hardware ct_pcm_playback_hw = {
+        .info                   = (SNDRV_PCM_INFO_MMAP |
+                                   SNDRV_PCM_INFO_INTERLEAVED |
+                                   SNDRV_PCM_INFO_BLOCK_TRANSFER |
+                                   SNDRV_PCM_INFO_MMAP_VALID |
+                                   SNDRV_PCM_INFO_PAUSE),
+        .formats                = (SNDRV_PCM_FMTBIT_U8 |
+                                   SNDRV_PCM_FMTBIT_S16_LE |
+                                   SNDRV_PCM_FMTBIT_S24_3LE |
+                                   SNDRV_PCM_FMTBIT_S32_LE |
+                                   SNDRV_PCM_FMTBIT_FLOAT_LE),
+        .rates                  = (SNDRV_PCM_RATE_CONTINUOUS |
+                                   SNDRV_PCM_RATE_8000_192000),
+        .rate_min               = 8000,
+        .rate_max               = 192000,
+        .channels_min           = 1,
+        .channels_max           = 2,
+        .buffer_bytes_max       = (128*1024),
+        .period_bytes_min       = (64),
+        .period_bytes_max       = (128*1024),
+        .periods_min            = 2,
+        .periods_max            = 1024,
+        .fifo_size              = 0,
+};
+static struct snd_pcm_hardware ct_spdif_passthru_playback_hw = {
+        .info                   = (SNDRV_PCM_INFO_MMAP |
+                                   SNDRV_PCM_INFO_INTERLEAVED |
+                                   SNDRV_PCM_INFO_BLOCK_TRANSFER |
+                                   SNDRV_PCM_INFO_MMAP_VALID |
+                                   SNDRV_PCM_INFO_PAUSE),
+        .formats                = SNDRV_PCM_FMTBIT_S16_LE,
+        .rates                  = (SNDRV_PCM_RATE_48000 |
+                                   SNDRV_PCM_RATE_44100 |
+                                   SNDRV_PCM_RATE_32000),
+        .rate_min               = 32000,
+        .rate_max               = 48000,
+        .channels_min           = 2,
+        .channels_max           = 2,
+        .buffer_bytes_max       = (128*1024),
+        .period_bytes_min       = (64),
+        .period_bytes_max       = (128*1024),
+        .periods_min            = 2,
+        .periods_max            = 1024,
+        .fifo_size              = 0,
+};
+/* Hardware descriptions for capture */
+static struct snd_pcm_hardware ct_pcm_capture_hw = {
+        .info                   = (SNDRV_PCM_INFO_MMAP |
+                                   SNDRV_PCM_INFO_INTERLEAVED |
+                                   SNDRV_PCM_INFO_BLOCK_TRANSFER |
+                                   SNDRV_PCM_INFO_PAUSE |
+                                   SNDRV_PCM_INFO_MMAP_VALID),
+        .formats                = (SNDRV_PCM_FMTBIT_U8 |
+                                   SNDRV_PCM_FMTBIT_S16_LE |
+                                   SNDRV_PCM_FMTBIT_S24_3LE |
+                                   SNDRV_PCM_FMTBIT_S32_LE |
+                                   SNDRV_PCM_FMTBIT_FLOAT_LE),
+        .rates                  = (SNDRV_PCM_RATE_CONTINUOUS |
+                                   SNDRV_PCM_RATE_8000_96000),
+        .rate_min               = 8000,
+        .rate_max               = 96000,
+        .channels_min           = 1,
+        .channels_max           = 2,
+        .buffer_bytes_max       = (128*1024),
+        .period_bytes_min       = (384),
+        .period_bytes_max       = (64*1024),
+        .periods_min            = 2,
+        .periods_max            = 1024,
+        .fifo_size              = 0,
+};
+static void ct_atc_pcm_interrupt(struct ct_atc_pcm *atc_pcm)
+{
+        struct ct_atc_pcm *apcm = atc_pcm;
+        if (NULL == apcm->substream)
+                return;
+        snd_pcm_period_elapsed(apcm->substream);
+}
+static void ct_atc_pcm_free_substream(struct snd_pcm_runtime *runtime)
+{
+        struct ct_atc_pcm *apcm = runtime->private_data;
+        struct ct_atc *atc = snd_pcm_substream_chip(apcm->substream);
+        atc->pcm_release_resources(atc, apcm);
+        ct_timer_instance_free(apcm->timer);
+        kfree(apcm);
+        runtime->private_data = NULL;
+}
+/* pcm playback operations */
+static int ct_pcm_playback_open(struct snd_pcm_substream *substream)
+{
+        struct ct_atc *atc = snd_pcm_substream_chip(substream);
+        struct snd_pcm_runtime *runtime = substream->runtime;
+        struct ct_atc_pcm *apcm;
+        int err;
+        apcm = kzalloc(sizeof(*apcm), GFP_KERNEL);
+        if (NULL == apcm)
+                return -ENOMEM;
+        apcm->substream = substream;
+        apcm->interrupt = ct_atc_pcm_interrupt;
+        runtime->private_data = apcm;
+        runtime->private_free = ct_atc_pcm_free_substream;
+        if (IEC958 == substream->pcm->device) {
+                runtime->hw = ct_spdif_passthru_playback_hw;
+                atc->spdif_out_passthru(atc, 1);
+        } else {
+                runtime->hw = ct_pcm_playback_hw;
+                if (FRONT == substream->pcm->device)
+                        runtime->hw.channels_max = 8;
+        }
+        err = snd_pcm_hw_constraint_integer(runtime,
+                                            SNDRV_PCM_HW_PARAM_PERIODS);
+        if (err < 0) {
+                kfree(apcm);
+                return err;
+        }
+        err = snd_pcm_hw_constraint_minmax(runtime,
+                                           SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
+                                           1024, UINT_MAX);
+        if (err < 0) {
+                kfree(apcm);
+                return err;
+        }
+        apcm->timer = ct_timer_instance_new(atc->timer, apcm);
+        if (!apcm->timer)
+                return -ENOMEM;
+        return 0;
+}
+static int ct_pcm_playback_close(struct snd_pcm_substream *substream)
+{
+        struct ct_atc *atc = snd_pcm_substream_chip(substream);
+        /* TODO: Notify mixer inactive. */
+        if (IEC958 == substream->pcm->device)
+                atc->spdif_out_passthru(atc, 0);
+        /* The ct_atc_pcm object will be freed by runtime->private_free */
+        return 0;
+}
+static int ct_pcm_hw_params(struct snd_pcm_substream *substream,
+                                     struct snd_pcm_hw_params *hw_params)
+{
+        struct ct_atc *atc = snd_pcm_substream_chip(substream);
+        struct ct_atc_pcm *apcm = substream->runtime->private_data;
+        int err;
+        err = snd_pcm_lib_malloc_pages(substream,
+                                        params_buffer_bytes(hw_params));
+        if (err < 0)
+                return err;
+        /* clear previous resources */
+        atc->pcm_release_resources(atc, apcm);
+        return err;
+}
+static int ct_pcm_hw_free(struct snd_pcm_substream *substream)
+{
+        struct ct_atc *atc = snd_pcm_substream_chip(substream);
+        struct ct_atc_pcm *apcm = substream->runtime->private_data;
+        /* clear previous resources */
+        atc->pcm_release_resources(atc, apcm);
+        /* Free snd-allocated pages */
+        return snd_pcm_lib_free_pages(substream);
+}
+static int ct_pcm_playback_prepare(struct snd_pcm_substream *substream)
+{
+        int err;
+        struct ct_atc *atc = snd_pcm_substream_chip(substream);
+        struct snd_pcm_runtime *runtime = substream->runtime;
+        struct ct_atc_pcm *apcm = runtime->private_data;
+        if (IEC958 == substream->pcm->device)
+                err = atc->spdif_passthru_playback_prepare(atc, apcm);
+        else
+                err = atc->pcm_playback_prepare(atc, apcm);
+        if (err < 0) {
+                printk(KERN_ERR "ctxfi: Preparing pcm playback failed!!!\n");
+                return err;
+        }
+        return 0;
+}
+static int
+ct_pcm_playback_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+        struct ct_atc *atc = snd_pcm_substream_chip(substream);
+        struct snd_pcm_runtime *runtime = substream->runtime;
+        struct ct_atc_pcm *apcm = runtime->private_data;
+        switch (cmd) {
+        case SNDRV_PCM_TRIGGER_START:
+        case SNDRV_PCM_TRIGGER_RESUME:
+        case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+                atc->pcm_playback_start(atc, apcm);
+                break;
+        case SNDRV_PCM_TRIGGER_STOP:
+        case SNDRV_PCM_TRIGGER_SUSPEND:
+        case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+                atc->pcm_playback_stop(atc, apcm);
+                break;
+        default:
+                break;
+        }
+        return 0;
+}
+static snd_pcm_uframes_t
+ct_pcm_playback_pointer(struct snd_pcm_substream *substream)
+{
+        unsigned long position;
+        struct ct_atc *atc = snd_pcm_substream_chip(substream);
+        struct snd_pcm_runtime *runtime = substream->runtime;
+        struct ct_atc_pcm *apcm = runtime->private_data;
+        /* Read out playback position */
+        position = atc->pcm_playback_position(atc, apcm);
+        position = bytes_to_frames(runtime, position);
+        if (position >= runtime->buffer_size)
+                position = 0;
+        return position;
+}
+/* pcm capture operations */
+static int ct_pcm_capture_open(struct snd_pcm_substream *substream)
+{
+        struct ct_atc *atc = snd_pcm_substream_chip(substream);
+        struct snd_pcm_runtime *runtime = substream->runtime;
+        struct ct_atc_pcm *apcm;
+        int err;
+        apcm = kzalloc(sizeof(*apcm), GFP_KERNEL);
+        if (NULL == apcm)
+                return -ENOMEM;
+        apcm->started = 0;
+        apcm->substream = substream;
+        apcm->interrupt = ct_atc_pcm_interrupt;
+        runtime->private_data = apcm;
+        runtime->private_free = ct_atc_pcm_free_substream;
+        runtime->hw = ct_pcm_capture_hw;
+        runtime->hw.rate_max = atc->rsr * atc->msr;
+        err = snd_pcm_hw_constraint_integer(runtime,
+                                            SNDRV_PCM_HW_PARAM_PERIODS);
+        if (err < 0) {
+                kfree(apcm);
+                return err;
+        }
+        err = snd_pcm_hw_constraint_minmax(runtime,
+                                           SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
+                                           1024, UINT_MAX);
+        if (err < 0) {
+                kfree(apcm);
+                return err;
+        }
+        apcm->timer = ct_timer_instance_new(atc->timer, apcm);
+        if (!apcm->timer)
+                return -ENOMEM;
+        return 0;
+}
+static int ct_pcm_capture_close(struct snd_pcm_substream *substream)
+{
+        /* The ct_atc_pcm object will be freed by runtime->private_free */
+        /* TODO: Notify mixer inactive. */
+        return 0;
+}
+static int ct_pcm_capture_prepare(struct snd_pcm_substream *substream)
+{
+        int err;
+        struct ct_atc *atc = snd_pcm_substream_chip(substream);
+        struct snd_pcm_runtime *runtime = substream->runtime;
+        struct ct_atc_pcm *apcm = runtime->private_data;
+        err = atc->pcm_capture_prepare(atc, apcm);
+        if (err < 0) {
+                printk(KERN_ERR "ctxfi: Preparing pcm capture failed!!!\n");
+                return err;
+        }
+        return 0;
+}
+static int
+ct_pcm_capture_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+        struct ct_atc *atc = snd_pcm_substream_chip(substream);
+        struct snd_pcm_runtime *runtime = substream->runtime;
+        struct ct_atc_pcm *apcm = runtime->private_data;
+        switch (cmd) {
+        case SNDRV_PCM_TRIGGER_START:
+                atc->pcm_capture_start(atc, apcm);
+                break;
+        case SNDRV_PCM_TRIGGER_STOP:
+                atc->pcm_capture_stop(atc, apcm);
+                break;
+        default:
+                atc->pcm_capture_stop(atc, apcm);
+                break;
+        }
+        return 0;
+}
+static snd_pcm_uframes_t
+ct_pcm_capture_pointer(struct snd_pcm_substream *substream)
+{
+        unsigned long position;
+        struct ct_atc *atc = snd_pcm_substream_chip(substream);
+        struct snd_pcm_runtime *runtime = substream->runtime;
+        struct ct_atc_pcm *apcm = runtime->private_data;
+        /* Read out playback position */
+        position = atc->pcm_capture_position(atc, apcm);
+        position = bytes_to_frames(runtime, position);
+        if (position >= runtime->buffer_size)
+                position = 0;
+        return position;
+}
+/* PCM operators for playback */
+static struct snd_pcm_ops ct_pcm_playback_ops = {
+        .open           = ct_pcm_playback_open,
+        .close          = ct_pcm_playback_close,
+        .ioctl          = snd_pcm_lib_ioctl,
+        .hw_params      = ct_pcm_hw_params,
+        .hw_free        = ct_pcm_hw_free,
+        .prepare        = ct_pcm_playback_prepare,
+        .trigger        = ct_pcm_playback_trigger,
+        .pointer        = ct_pcm_playback_pointer,
+        .page           = snd_pcm_sgbuf_ops_page,
+};
+/* PCM operators for capture */
+static struct snd_pcm_ops ct_pcm_capture_ops = {
+        .open           = ct_pcm_capture_open,
+        .close          = ct_pcm_capture_close,
+        .ioctl          = snd_pcm_lib_ioctl,
+        .hw_params      = ct_pcm_hw_params,
+        .hw_free        = ct_pcm_hw_free,
+        .prepare        = ct_pcm_capture_prepare,
+        .trigger        = ct_pcm_capture_trigger,
+        .pointer        = ct_pcm_capture_pointer,
+        .page           = snd_pcm_sgbuf_ops_page,
+};
+/* Create ALSA pcm device */
+int ct_alsa_pcm_create(struct ct_atc *atc,
+                       enum CTALSADEVS device,
+                       const char *device_name)
+{
+        struct snd_pcm *pcm;
+        int err;
+        int playback_count, capture_count;
+        playback_count = (IEC958 == device) ? 1 : 8;
+        capture_count = (FRONT == device) ? 1 : 0;
+        err = snd_pcm_new(atc->card, "ctxfi", device,
+                          playback_count, capture_count, &pcm);
+        if (err < 0) {
+                printk(KERN_ERR "ctxfi: snd_pcm_new failed!! Err=%d\n", err);
+                return err;
+        }
+        pcm->private_data = atc;
+        pcm->info_flags = 0;
+        pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
+        strlcpy(pcm->name, device_name, sizeof(pcm->name));
+        snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &ct_pcm_playback_ops);
+        if (FRONT == device)
+                snd_pcm_set_ops(pcm,
+                                SNDRV_PCM_STREAM_CAPTURE, &ct_pcm_capture_ops);
+        snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
+                        snd_dma_pci_data(atc->pci), 128*1024, 128*1024);
+        return 0;
+}
diff --git a/sound/pci/ctxfi/ctpcm.h b/sound/pci/ctxfi/ctpcm.h
new file mode 100644
index 000000000000..178da0dca647
--- /dev/null
+++ b/sound/pci/ctxfi/ctpcm.h
@@ -0,0 +1,27 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File        ctpcm.h
+ *
+ * @Brief
+ * This file contains the definition of the pcm device functions.
+ *
+ * @Author      Liu Chun
+ * @Date        Mar 28 2008
+ *
+ */
+#ifndef CTPCM_H
+#define CTPCM_H
+#include "ctatc.h"
+int ct_alsa_pcm_create(struct ct_atc *atc,
+                       enum CTALSADEVS device,
+                       const char *device_name);
+#endif /* CTPCM_H */
diff --git a/sound/pci/ctxfi/ctresource.c b/sound/pci/ctxfi/ctresource.c
new file mode 100644
index 000000000000..889c495bb7d1
--- /dev/null
+++ b/sound/pci/ctxfi/ctresource.c
@@ -0,0 +1,301 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File        ctresource.c
+ *
+ * @Brief
+ * This file contains the implementation of some generic helper functions.
+ *
+ * @Author      Liu Chun
+ * @Date        May 15 2008
+ *
+ */
+#include "ctresource.h"
+#include "cthardware.h"
+#include <linux/err.h>
+#include <linux/slab.h>
+#define AUDIO_SLOT_BLOCK_NUM    256
+/* Resource allocation based on bit-map management mechanism */
+static int
+get_resource(u8 *rscs, unsigned int amount,
+             unsigned int multi, unsigned int *ridx)
+{
+        int i, j, k, n;
+        /* Check whether there are sufficient resources to meet request. */
+        for (i = 0, n = multi; i < amount; i++) {
+                j = i / 8;
+                k = i % 8;
+                if (rscs[j] & ((u8)1 << k)) {
+                        n = multi;
+                        continue;
+                }
+                if (!(--n))
+                        break; /* found sufficient contiguous resources */
+        }
+        if (i >= amount) {
+                /* Can not find sufficient contiguous resources */
+                return -ENOENT;
+        }
+        /* Mark the contiguous bits in resource bit-map as used */
+        for (n = multi; n > 0; n--) {
+                j = i / 8;
+                k = i % 8;
+                rscs[j] |= ((u8)1 << k);
+                i--;
+        }
+        *ridx = i + 1;
+        return 0;
+}
+static int put_resource(u8 *rscs, unsigned int multi, unsigned int idx)
+{
+        unsigned int i, j, k, n;
+        /* Mark the contiguous bits in resource bit-map as used */
+        for (n = multi, i = idx; n > 0; n--) {
+                j = i / 8;
+                k = i % 8;
+                rscs[j] &= ~((u8)1 << k);
+                i++;
+        }
+        return 0;
+}
+int mgr_get_resource(struct rsc_mgr *mgr, unsigned int n, unsigned int *ridx)
+{
+        int err;
+        if (n > mgr->avail)
+                return -ENOENT;
+        err = get_resource(mgr->rscs, mgr->amount, n, ridx);
+        if (!err)
+                mgr->avail -= n;
+        return err;
+}
+int mgr_put_resource(struct rsc_mgr *mgr, unsigned int n, unsigned int idx)
+{
+        put_resource(mgr->rscs, n, idx);
+        mgr->avail += n;
+        return 0;
+}
+static unsigned char offset_in_audio_slot_block[NUM_RSCTYP] = {
+        /* SRC channel is at Audio Ring slot 1 every 16 slots. */
+        [SRC]           = 0x1,
+        [AMIXER]        = 0x4,
+        [SUM]           = 0xc,
+};
+static int rsc_index(const struct rsc *rsc)
+{
+    return rsc->conj;
+}
+static int audio_ring_slot(const struct rsc *rsc)
+{
+    return (rsc->conj << 4) + offset_in_audio_slot_block[rsc->type];
+}
+static int rsc_next_conj(struct rsc *rsc)
+{
+        unsigned int i;
+        for (i = 0; (i < 8) && (!(rsc->msr & (0x1 << i))); )
+                i++;
+        rsc->conj += (AUDIO_SLOT_BLOCK_NUM >> i);
+        return rsc->conj;
+}
+static int rsc_master(struct rsc *rsc)
+{
+        return rsc->conj = rsc->idx;
+}
+static struct rsc_ops rsc_generic_ops = {
+        .index          = rsc_index,
+        .output_slot    = audio_ring_slot,
+        .master         = rsc_master,
+        .next_conj      = rsc_next_conj,
+};
+int rsc_init(struct rsc *rsc, u32 idx, enum RSCTYP type, u32 msr, void *hw)
+{
+        int err = 0;
+        rsc->idx = idx;
+        rsc->conj = idx;
+        rsc->type = type;
+        rsc->msr = msr;
+        rsc->hw = hw;
+        rsc->ops = &rsc_generic_ops;
+        if (NULL == hw) {
+                rsc->ctrl_blk = NULL;
+                return 0;
+        }
+        switch (type) {
+        case SRC:
+                err = ((struct hw *)hw)->src_rsc_get_ctrl_blk(&rsc->ctrl_blk);
+                break;
+        case AMIXER:
+                err = ((struct hw *)hw)->
+                                amixer_rsc_get_ctrl_blk(&rsc->ctrl_blk);
+                break;
+        case SRCIMP:
+        case SUM:
+        case DAIO:
+                break;
+        default:
+                printk(KERN_ERR
+                       "ctxfi: Invalid resource type value %d!\n", type);
+                return -EINVAL;
+        }
+        if (err) {
+                printk(KERN_ERR
+                       "ctxfi: Failed to get resource control block!\n");
+                return err;
+        }
+        return 0;
+}
+int rsc_uninit(struct rsc *rsc)
+{
+        if ((NULL != rsc->hw) && (NULL != rsc->ctrl_blk)) {
+                switch (rsc->type) {
+                case SRC:
+                        ((struct hw *)rsc->hw)->
+                                src_rsc_put_ctrl_blk(rsc->ctrl_blk);
+                        break;
+                case AMIXER:
+                        ((struct hw *)rsc->hw)->
+                                amixer_rsc_put_ctrl_blk(rsc->ctrl_blk);
+                        break;
+                case SUM:
+                case DAIO:
+                        break;
+                default:
+                        printk(KERN_ERR "ctxfi: "
+                               "Invalid resource type value %d!\n", rsc->type);
+                        break;
+                }
+                rsc->hw = rsc->ctrl_blk = NULL;
+        }
+        rsc->idx = rsc->conj = 0;
+        rsc->type = NUM_RSCTYP;
+        rsc->msr = 0;
+        return 0;
+}
+int rsc_mgr_init(struct rsc_mgr *mgr, enum RSCTYP type,
+                 unsigned int amount, void *hw_obj)
+{
+        int err = 0;
+        struct hw *hw = hw_obj;
+        mgr->type = NUM_RSCTYP;
+        mgr->rscs = kzalloc(((amount + 8 - 1) / 8), GFP_KERNEL);
+        if (NULL == mgr->rscs)
+                return -ENOMEM;
+        switch (type) {
+        case SRC:
+                err = hw->src_mgr_get_ctrl_blk(&mgr->ctrl_blk);
+                break;
+        case SRCIMP:
+                err = hw->srcimp_mgr_get_ctrl_blk(&mgr->ctrl_blk);
+                break;
+        case AMIXER:
+                err = hw->amixer_mgr_get_ctrl_blk(&mgr->ctrl_blk);
+                break;
+        case DAIO:
+                err = hw->daio_mgr_get_ctrl_blk(hw, &mgr->ctrl_blk);
+                break;
+        case SUM:
+                break;
+        default:
+                printk(KERN_ERR
+                       "ctxfi: Invalid resource type value %d!\n", type);
+                err = -EINVAL;
+                goto error;
+        }
+        if (err) {
+                printk(KERN_ERR
+                       "ctxfi: Failed to get manager control block!\n");
+                goto error;
+        }
+        mgr->type = type;
+        mgr->avail = mgr->amount = amount;
+        mgr->hw = hw;
+        return 0;
+error:
+        kfree(mgr->rscs);
+        return err;
+}
+int rsc_mgr_uninit(struct rsc_mgr *mgr)
+{
+        if (NULL != mgr->rscs) {
+                kfree(mgr->rscs);
+                mgr->rscs = NULL;
+        }
+        if ((NULL != mgr->hw) && (NULL != mgr->ctrl_blk)) {
+                switch (mgr->type) {
+                case SRC:
+                        ((struct hw *)mgr->hw)->
+                                src_mgr_put_ctrl_blk(mgr->ctrl_blk);
+                        break;
+                case SRCIMP:
+                        ((struct hw *)mgr->hw)->
+                                srcimp_mgr_put_ctrl_blk(mgr->ctrl_blk);
+                        break;
+                case AMIXER:
+                        ((struct hw *)mgr->hw)->
+                                amixer_mgr_put_ctrl_blk(mgr->ctrl_blk);
+                        break;
+                case DAIO:
+                        ((struct hw *)mgr->hw)->
+                                daio_mgr_put_ctrl_blk(mgr->ctrl_blk);
+                        break;
+                case SUM:
+                        break;
+                default:
+                        printk(KERN_ERR "ctxfi: "
+                               "Invalid resource type value %d!\n", mgr->type);
+                        break;
+                }
+                mgr->hw = mgr->ctrl_blk = NULL;
+        }
+        mgr->type = NUM_RSCTYP;
+        mgr->avail = mgr->amount = 0;
+        return 0;
+}
diff --git a/sound/pci/ctxfi/ctresource.h b/sound/pci/ctxfi/ctresource.h
new file mode 100644
index 000000000000..0838c2e84f8b
--- /dev/null
+++ b/sound/pci/ctxfi/ctresource.h
@@ -0,0 +1,72 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File        ctresource.h
+ *
+ * @Brief
+ * This file contains the definition of generic hardware resources for
+ * resource management.
+ *
+ * @Author      Liu Chun
+ * @Date        May 13 2008
+ *
+ */
+#ifndef CTRESOURCE_H
+#define CTRESOURCE_H
+#include <linux/types.h>
+enum RSCTYP {
+        SRC,
+        SRCIMP,
+        AMIXER,
+        SUM,
+        DAIO,
+        NUM_RSCTYP      /* This must be the last one and less than 16 */
+};
+struct rsc_ops;
+struct rsc {
+        u32 idx:12;     /* The index of a resource */
+        u32 type:4;     /* The type (RSCTYP) of a resource */
+        u32 conj:12;    /* Current conjugate index */
+        u32 msr:4;      /* The Master Sample Rate a resource working on */
+        void *ctrl_blk; /* Chip specific control info block for a resource */
+        void *hw;       /* Chip specific object for hardware access means */
+        struct rsc_ops *ops;    /* Generic resource operations */
+};
+struct rsc_ops {
+        int (*master)(struct rsc *rsc); /* Move to master resource */
+        int (*next_conj)(struct rsc *rsc); /* Move to next conjugate resource */
+        int (*index)(const struct rsc *rsc); /* Return the index of resource */
+        /* Return the output slot number */
+        int (*output_slot)(const struct rsc *rsc);
+};
+int rsc_init(struct rsc *rsc, u32 idx, enum RSCTYP type, u32 msr, void *hw);
+int rsc_uninit(struct rsc *rsc);
+struct rsc_mgr {
+        enum RSCTYP type; /* The type (RSCTYP) of resource to manage */
+        unsigned int amount; /* The total amount of a kind of resource */
+        unsigned int avail; /* The amount of currently available resources */
+        unsigned char *rscs; /* The bit-map for resource allocation */
+        void *ctrl_blk; /* Chip specific control info block */
+        void *hw; /* Chip specific object for hardware access */
+};
+/* Resource management is based on bit-map mechanism */
+int rsc_mgr_init(struct rsc_mgr *mgr, enum RSCTYP type,
+                 unsigned int amount, void *hw);
+int rsc_mgr_uninit(struct rsc_mgr *mgr);
+int mgr_get_resource(struct rsc_mgr *mgr, unsigned int n, unsigned int *ridx);
+int mgr_put_resource(struct rsc_mgr *mgr, unsigned int n, unsigned int idx);
+#endif /* CTRESOURCE_H */
diff --git a/sound/pci/ctxfi/ctsrc.c b/sound/pci/ctxfi/ctsrc.c
new file mode 100644
index 000000000000..e1c145d8b702
--- /dev/null
+++ b/sound/pci/ctxfi/ctsrc.c
@@ -0,0 +1,886 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File        ctsrc.c
+ *
+ * @Brief
+ * This file contains the implementation of the Sample Rate Convertor
+ * resource management object.
+ *
+ * @Author      Liu Chun
+ * @Date        May 13 2008
+ *
+ */
+#include "ctsrc.h"
+#include "cthardware.h"
+#include <linux/slab.h>
+#define SRC_RESOURCE_NUM        64
+#define SRCIMP_RESOURCE_NUM     256
+static unsigned int conj_mask;
+static int src_default_config_memrd(struct src *src);
+static int src_default_config_memwr(struct src *src);
+static int src_default_config_arcrw(struct src *src);
+static int (*src_default_config[3])(struct src *) = {
+        [MEMRD] = src_default_config_memrd,
+        [MEMWR] = src_default_config_memwr,
+        [ARCRW] = src_default_config_arcrw
+};
+static int src_set_state(struct src *src, unsigned int state)
+{
+        struct hw *hw;
+        hw = src->rsc.hw;
+        hw->src_set_state(src->rsc.ctrl_blk, state);
+        return 0;
+}
+static int src_set_bm(struct src *src, unsigned int bm)
+{
+        struct hw *hw;
+        hw = src->rsc.hw;
+        hw->src_set_bm(src->rsc.ctrl_blk, bm);
+        return 0;
+}
+static int src_set_sf(struct src *src, unsigned int sf)
+{
+        struct hw *hw;
+        hw = src->rsc.hw;
+        hw->src_set_sf(src->rsc.ctrl_blk, sf);
+        return 0;
+}
+static int src_set_pm(struct src *src, unsigned int pm)
+{
+        struct hw *hw;
+        hw = src->rsc.hw;
+        hw->src_set_pm(src->rsc.ctrl_blk, pm);
+        return 0;
+}
+static int src_set_rom(struct src *src, unsigned int rom)
+{
+        struct hw *hw;
+        hw = src->rsc.hw;
+        hw->src_set_rom(src->rsc.ctrl_blk, rom);
+        return 0;
+}
+static int src_set_vo(struct src *src, unsigned int vo)
+{
+        struct hw *hw;
+        hw = src->rsc.hw;
+        hw->src_set_vo(src->rsc.ctrl_blk, vo);
+        return 0;
+}
+static int src_set_st(struct src *src, unsigned int st)
+{
+        struct hw *hw;
+        hw = src->rsc.hw;
+        hw->src_set_st(src->rsc.ctrl_blk, st);
+        return 0;
+}
+static int src_set_bp(struct src *src, unsigned int bp)
+{
+        struct hw *hw;
+        hw = src->rsc.hw;
+        hw->src_set_bp(src->rsc.ctrl_blk, bp);
+        return 0;
+}
+static int src_set_cisz(struct src *src, unsigned int cisz)
+{
+        struct hw *hw;
+        hw = src->rsc.hw;
+        hw->src_set_cisz(src->rsc.ctrl_blk, cisz);
+        return 0;
+}
+static int src_set_ca(struct src *src, unsigned int ca)
+{
+        struct hw *hw;
+        hw = src->rsc.hw;
+        hw->src_set_ca(src->rsc.ctrl_blk, ca);
+        return 0;
+}
+static int src_set_sa(struct src *src, unsigned int sa)
+{
+        struct hw *hw;
+        hw = src->rsc.hw;
+        hw->src_set_sa(src->rsc.ctrl_blk, sa);
+        return 0;
+}
+static int src_set_la(struct src *src, unsigned int la)
+{
+        struct hw *hw;
+        hw = src->rsc.hw;
+        hw->src_set_la(src->rsc.ctrl_blk, la);
+        return 0;
+}
+static int src_set_pitch(struct src *src, unsigned int pitch)
+{
+        struct hw *hw;
+        hw = src->rsc.hw;
+        hw->src_set_pitch(src->rsc.ctrl_blk, pitch);
+        return 0;
+}
+static int src_set_clear_zbufs(struct src *src)
+{
+        struct hw *hw;
+        hw = src->rsc.hw;
+        hw->src_set_clear_zbufs(src->rsc.ctrl_blk, 1);
+        return 0;
+}
+static int src_commit_write(struct src *src)
+{
+        struct hw *hw;
+        int i;
+        unsigned int dirty = 0;
+        hw = src->rsc.hw;
+        src->rsc.ops->master(&src->rsc);
+        if (src->rsc.msr > 1) {
+                /* Save dirty flags for conjugate resource programming */
+                dirty = hw->src_get_dirty(src->rsc.ctrl_blk) & conj_mask;
+        }
+        hw->src_commit_write(hw, src->rsc.ops->index(&src->rsc),
+                                                src->rsc.ctrl_blk);
+        /* Program conjugate parameter mixer resources */
+        if (MEMWR == src->mode)
+                return 0;
+        for (i = 1; i < src->rsc.msr; i++) {
+                src->rsc.ops->next_conj(&src->rsc);
+                hw->src_set_dirty(src->rsc.ctrl_blk, dirty);
+                hw->src_commit_write(hw, src->rsc.ops->index(&src->rsc),
+                                                        src->rsc.ctrl_blk);
+        }
+        src->rsc.ops->master(&src->rsc);
+        return 0;
+}
+static int src_get_ca(struct src *src)
+{
+        struct hw *hw;
+        hw = src->rsc.hw;
+        return hw->src_get_ca(hw, src->rsc.ops->index(&src->rsc),
+                                                src->rsc.ctrl_blk);
+}
+static int src_init(struct src *src)
+{
+        src_default_config[src->mode](src);
+        return 0;
+}
+static struct src *src_next_interleave(struct src *src)
+{
+        return src->intlv;
+}
+static int src_default_config_memrd(struct src *src)
+{
+        struct hw *hw = src->rsc.hw;
+        unsigned int rsr, msr;
+        hw->src_set_state(src->rsc.ctrl_blk, SRC_STATE_OFF);
+        hw->src_set_bm(src->rsc.ctrl_blk, 1);
+        for (rsr = 0, msr = src->rsc.msr; msr > 1; msr >>= 1)
+                rsr++;
+        hw->src_set_rsr(src->rsc.ctrl_blk, rsr);
+        hw->src_set_sf(src->rsc.ctrl_blk, SRC_SF_S16);
+        hw->src_set_wr(src->rsc.ctrl_blk, 0);
+        hw->src_set_pm(src->rsc.ctrl_blk, 0);
+        hw->src_set_rom(src->rsc.ctrl_blk, 0);
+        hw->src_set_vo(src->rsc.ctrl_blk, 0);
+        hw->src_set_st(src->rsc.ctrl_blk, 0);
+        hw->src_set_ilsz(src->rsc.ctrl_blk, src->multi - 1);
+        hw->src_set_cisz(src->rsc.ctrl_blk, 0x80);
+        hw->src_set_sa(src->rsc.ctrl_blk, 0x0);
+        hw->src_set_la(src->rsc.ctrl_blk, 0x1000);
+        hw->src_set_ca(src->rsc.ctrl_blk, 0x80);
+        hw->src_set_pitch(src->rsc.ctrl_blk, 0x1000000);
+        hw->src_set_clear_zbufs(src->rsc.ctrl_blk, 1);
+        src->rsc.ops->master(&src->rsc);
+        hw->src_commit_write(hw, src->rsc.ops->index(&src->rsc),
+                                                src->rsc.ctrl_blk);
+        for (msr = 1; msr < src->rsc.msr; msr++) {
+                src->rsc.ops->next_conj(&src->rsc);
+                hw->src_set_pitch(src->rsc.ctrl_blk, 0x1000000);
+                hw->src_commit_write(hw, src->rsc.ops->index(&src->rsc),
+                                                        src->rsc.ctrl_blk);
+        }
+        src->rsc.ops->master(&src->rsc);
+        return 0;
+}
+static int src_default_config_memwr(struct src *src)
+{
+        struct hw *hw = src->rsc.hw;
+        hw->src_set_state(src->rsc.ctrl_blk, SRC_STATE_OFF);
+        hw->src_set_bm(src->rsc.ctrl_blk, 1);
+        hw->src_set_rsr(src->rsc.ctrl_blk, 0);
+        hw->src_set_sf(src->rsc.ctrl_blk, SRC_SF_S16);
+        hw->src_set_wr(src->rsc.ctrl_blk, 1);
+        hw->src_set_pm(src->rsc.ctrl_blk, 0);
+        hw->src_set_rom(src->rsc.ctrl_blk, 0);
+        hw->src_set_vo(src->rsc.ctrl_blk, 0);
+        hw->src_set_st(src->rsc.ctrl_blk, 0);
+        hw->src_set_ilsz(src->rsc.ctrl_blk, 0);
+        hw->src_set_cisz(src->rsc.ctrl_blk, 0x80);
+        hw->src_set_sa(src->rsc.ctrl_blk, 0x0);
+        hw->src_set_la(src->rsc.ctrl_blk, 0x1000);
+        hw->src_set_ca(src->rsc.ctrl_blk, 0x80);
+        hw->src_set_pitch(src->rsc.ctrl_blk, 0x1000000);
+        hw->src_set_clear_zbufs(src->rsc.ctrl_blk, 1);
+        src->rsc.ops->master(&src->rsc);
+        hw->src_commit_write(hw, src->rsc.ops->index(&src->rsc),
+                                                src->rsc.ctrl_blk);
+        return 0;
+}
+static int src_default_config_arcrw(struct src *src)
+{
+        struct hw *hw = src->rsc.hw;
+        unsigned int rsr, msr;
+        unsigned int dirty;
+        hw->src_set_state(src->rsc.ctrl_blk, SRC_STATE_OFF);
+        hw->src_set_bm(src->rsc.ctrl_blk, 0);
+        for (rsr = 0, msr = src->rsc.msr; msr > 1; msr >>= 1)
+                rsr++;
+        hw->src_set_rsr(src->rsc.ctrl_blk, rsr);
+        hw->src_set_sf(src->rsc.ctrl_blk, SRC_SF_F32);
+        hw->src_set_wr(src->rsc.ctrl_blk, 0);
+        hw->src_set_pm(src->rsc.ctrl_blk, 0);
+        hw->src_set_rom(src->rsc.ctrl_blk, 0);
+        hw->src_set_vo(src->rsc.ctrl_blk, 0);
+        hw->src_set_st(src->rsc.ctrl_blk, 0);
+        hw->src_set_ilsz(src->rsc.ctrl_blk, 0);
+        hw->src_set_cisz(src->rsc.ctrl_blk, 0x80);
+        hw->src_set_sa(src->rsc.ctrl_blk, 0x0);
+        /*hw->src_set_sa(src->rsc.ctrl_blk, 0x100);*/
+        hw->src_set_la(src->rsc.ctrl_blk, 0x1000);
+        /*hw->src_set_la(src->rsc.ctrl_blk, 0x03ffffe0);*/
+        hw->src_set_ca(src->rsc.ctrl_blk, 0x80);
+        hw->src_set_pitch(src->rsc.ctrl_blk, 0x1000000);
+        hw->src_set_clear_zbufs(src->rsc.ctrl_blk, 1);
+        dirty = hw->src_get_dirty(src->rsc.ctrl_blk);
+        src->rsc.ops->master(&src->rsc);
+        for (msr = 0; msr < src->rsc.msr; msr++) {
+                hw->src_set_dirty(src->rsc.ctrl_blk, dirty);
+                hw->src_commit_write(hw, src->rsc.ops->index(&src->rsc),
+                                                        src->rsc.ctrl_blk);
+                src->rsc.ops->next_conj(&src->rsc);
+        }
+        src->rsc.ops->master(&src->rsc);
+        return 0;
+}
+static struct src_rsc_ops src_rsc_ops = {
+        .set_state              = src_set_state,
+        .set_bm                 = src_set_bm,
+        .set_sf                 = src_set_sf,
+        .set_pm                 = src_set_pm,
+        .set_rom                = src_set_rom,
+        .set_vo                 = src_set_vo,
+        .set_st                 = src_set_st,
+        .set_bp                 = src_set_bp,
+        .set_cisz               = src_set_cisz,
+        .set_ca                 = src_set_ca,
+        .set_sa                 = src_set_sa,
+        .set_la                 = src_set_la,
+        .set_pitch              = src_set_pitch,
+        .set_clr_zbufs          = src_set_clear_zbufs,
+        .commit_write           = src_commit_write,
+        .get_ca                 = src_get_ca,
+        .init                   = src_init,
+        .next_interleave        = src_next_interleave,
+};
+static int
+src_rsc_init(struct src *src, u32 idx,
+             const struct src_desc *desc, struct src_mgr *mgr)
+{
+        int err;
+        int i, n;
+        struct src *p;
+        n = (MEMRD == desc->mode) ? desc->multi : 1;
+        for (i = 0, p = src; i < n; i++, p++) {
+                err = rsc_init(&p->rsc, idx + i, SRC, desc->msr, mgr->mgr.hw);
+                if (err)
+                        goto error1;
+                /* Initialize src specific rsc operations */
+                p->ops = &src_rsc_ops;
+                p->multi = (0 == i) ? desc->multi : 1;
+                p->mode = desc->mode;
+                src_default_config[desc->mode](p);
+                mgr->src_enable(mgr, p);
+                p->intlv = p + 1;
+        }
+        (--p)->intlv = NULL;    /* Set @intlv of the last SRC to NULL */
+        mgr->commit_write(mgr);
+        return 0;
+error1:
+        for (i--, p--; i >= 0; i--, p--) {
+                mgr->src_disable(mgr, p);
+                rsc_uninit(&p->rsc);
+        }
+        mgr->commit_write(mgr);
+        return err;
+}
+static int src_rsc_uninit(struct src *src, struct src_mgr *mgr)
+{
+        int i, n;
+        struct src *p;
+        n = (MEMRD == src->mode) ? src->multi : 1;
+        for (i = 0, p = src; i < n; i++, p++) {
+                mgr->src_disable(mgr, p);
+                rsc_uninit(&p->rsc);
+                p->multi = 0;
+                p->ops = NULL;
+                p->mode = NUM_SRCMODES;
+                p->intlv = NULL;
+        }
+        mgr->commit_write(mgr);
+        return 0;
+}
+static int
+get_src_rsc(struct src_mgr *mgr, const struct src_desc *desc, struct src **rsrc)
+{
+        unsigned int idx = SRC_RESOURCE_NUM;
+        int err;
+        struct src *src;
+        unsigned long flags;
+        *rsrc = NULL;
+        /* Check whether there are sufficient src resources to meet request. */
+        spin_lock_irqsave(&mgr->mgr_lock, flags);
+        if (MEMRD == desc->mode)
+                err = mgr_get_resource(&mgr->mgr, desc->multi, &idx);
+        else
+                err = mgr_get_resource(&mgr->mgr, 1, &idx);
+        spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+        if (err) {
+                printk(KERN_ERR "ctxfi: Can't meet SRC resource request!\n");
+                return err;
+        }
+        /* Allocate mem for master src resource */
+        if (MEMRD == desc->mode)
+                src = kzalloc(sizeof(*src)*desc->multi, GFP_KERNEL);
+        else
+                src = kzalloc(sizeof(*src), GFP_KERNEL);
+        if (NULL == src) {
+                err = -ENOMEM;
+                goto error1;
+        }
+        err = src_rsc_init(src, idx, desc, mgr);
+        if (err)
+                goto error2;
+        *rsrc = src;
+        return 0;
+error2:
+        kfree(src);
+error1:
+        spin_lock_irqsave(&mgr->mgr_lock, flags);
+        if (MEMRD == desc->mode)
+                mgr_put_resource(&mgr->mgr, desc->multi, idx);
+        else
+                mgr_put_resource(&mgr->mgr, 1, idx);
+        spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+        return err;
+}
+static int put_src_rsc(struct src_mgr *mgr, struct src *src)
+{
+        unsigned long flags;
+        spin_lock_irqsave(&mgr->mgr_lock, flags);
+        src->rsc.ops->master(&src->rsc);
+        if (MEMRD == src->mode)
+                mgr_put_resource(&mgr->mgr, src->multi,
+                                 src->rsc.ops->index(&src->rsc));
+        else
+                mgr_put_resource(&mgr->mgr, 1, src->rsc.ops->index(&src->rsc));
+        spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+        src_rsc_uninit(src, mgr);
+        kfree(src);
+        return 0;
+}
+static int src_enable_s(struct src_mgr *mgr, struct src *src)
+{
+        struct hw *hw = mgr->mgr.hw;
+        int i;
+        src->rsc.ops->master(&src->rsc);
+        for (i = 0; i < src->rsc.msr; i++) {
+                hw->src_mgr_enbs_src(mgr->mgr.ctrl_blk,
+                                     src->rsc.ops->index(&src->rsc));
+                src->rsc.ops->next_conj(&src->rsc);
+        }
+        src->rsc.ops->master(&src->rsc);
+        return 0;
+}
+static int src_enable(struct src_mgr *mgr, struct src *src)
+{
+        struct hw *hw = mgr->mgr.hw;
+        int i;
+        src->rsc.ops->master(&src->rsc);
+        for (i = 0; i < src->rsc.msr; i++) {
+                hw->src_mgr_enb_src(mgr->mgr.ctrl_blk,
+                                    src->rsc.ops->index(&src->rsc));
+                src->rsc.ops->next_conj(&src->rsc);
+        }
+        src->rsc.ops->master(&src->rsc);
+        return 0;
+}
+static int src_disable(struct src_mgr *mgr, struct src *src)
+{
+        struct hw *hw = mgr->mgr.hw;
+        int i;
+        src->rsc.ops->master(&src->rsc);
+        for (i = 0; i < src->rsc.msr; i++) {
+                hw->src_mgr_dsb_src(mgr->mgr.ctrl_blk,
+                                    src->rsc.ops->index(&src->rsc));
+                src->rsc.ops->next_conj(&src->rsc);
+        }
+        src->rsc.ops->master(&src->rsc);
+        return 0;
+}
+static int src_mgr_commit_write(struct src_mgr *mgr)
+{
+        struct hw *hw = mgr->mgr.hw;
+        hw->src_mgr_commit_write(hw, mgr->mgr.ctrl_blk);
+        return 0;
+}
+int src_mgr_create(void *hw, struct src_mgr **rsrc_mgr)
+{
+        int err, i;
+        struct src_mgr *src_mgr;
+        *rsrc_mgr = NULL;
+        src_mgr = kzalloc(sizeof(*src_mgr), GFP_KERNEL);
+        if (NULL == src_mgr)
+                return -ENOMEM;
+        err = rsc_mgr_init(&src_mgr->mgr, SRC, SRC_RESOURCE_NUM, hw);
+        if (err)
+                goto error1;
+        spin_lock_init(&src_mgr->mgr_lock);
+        conj_mask = ((struct hw *)hw)->src_dirty_conj_mask();
+        src_mgr->get_src = get_src_rsc;
+        src_mgr->put_src = put_src_rsc;
+        src_mgr->src_enable_s = src_enable_s;
+        src_mgr->src_enable = src_enable;
+        src_mgr->src_disable = src_disable;
+        src_mgr->commit_write = src_mgr_commit_write;
+        /* Disable all SRC resources. */
+        for (i = 0; i < 256; i++)
+                ((struct hw *)hw)->src_mgr_dsb_src(src_mgr->mgr.ctrl_blk, i);
+        ((struct hw *)hw)->src_mgr_commit_write(hw, src_mgr->mgr.ctrl_blk);
+        *rsrc_mgr = src_mgr;
+        return 0;
+error1:
+        kfree(src_mgr);
+        return err;
+}
+int src_mgr_destroy(struct src_mgr *src_mgr)
+{
+        rsc_mgr_uninit(&src_mgr->mgr);
+        kfree(src_mgr);
+        return 0;
+}
+/* SRCIMP resource manager operations */
+static int srcimp_master(struct rsc *rsc)
+{
+        rsc->conj = 0;
+        return rsc->idx = container_of(rsc, struct srcimp, rsc)->idx[0];
+}
+static int srcimp_next_conj(struct rsc *rsc)
+{
+        rsc->conj++;
+        return container_of(rsc, struct srcimp, rsc)->idx[rsc->conj];
+}
+static int srcimp_index(const struct rsc *rsc)
+{
+        return container_of(rsc, struct srcimp, rsc)->idx[rsc->conj];
+}
+static struct rsc_ops srcimp_basic_rsc_ops = {
+        .master         = srcimp_master,
+        .next_conj      = srcimp_next_conj,
+        .index          = srcimp_index,
+        .output_slot    = NULL,
+};
+static int srcimp_map(struct srcimp *srcimp, struct src *src, struct rsc *input)
+{
+        struct imapper *entry;
+        int i;
+        srcimp->rsc.ops->master(&srcimp->rsc);
+        src->rsc.ops->master(&src->rsc);
+        input->ops->master(input);
+        /* Program master and conjugate resources */
+        for (i = 0; i < srcimp->rsc.msr; i++) {
+                entry = &srcimp->imappers[i];
+                entry->slot = input->ops->output_slot(input);
+                entry->user = src->rsc.ops->index(&src->rsc);
+                entry->addr = srcimp->rsc.ops->index(&srcimp->rsc);
+                srcimp->mgr->imap_add(srcimp->mgr, entry);
+                srcimp->mapped |= (0x1 << i);
+                srcimp->rsc.ops->next_conj(&srcimp->rsc);
+                input->ops->next_conj(input);
+        }
+        srcimp->rsc.ops->master(&srcimp->rsc);
+        input->ops->master(input);
+        return 0;
+}
+static int srcimp_unmap(struct srcimp *srcimp)
+{
+        int i;
+        /* Program master and conjugate resources */
+        for (i = 0; i < srcimp->rsc.msr; i++) {
+                if (srcimp->mapped & (0x1 << i)) {
+                        srcimp->mgr->imap_delete(srcimp->mgr,
+                                                 &srcimp->imappers[i]);
+                        srcimp->mapped &= ~(0x1 << i);
+                }
+        }
+        return 0;
+}
+static struct srcimp_rsc_ops srcimp_ops = {
+        .map = srcimp_map,
+        .unmap = srcimp_unmap
+};
+static int srcimp_rsc_init(struct srcimp *srcimp,
+                           const struct srcimp_desc *desc,
+                           struct srcimp_mgr *mgr)
+{
+        int err;
+        err = rsc_init(&srcimp->rsc, srcimp->idx[0],
+                       SRCIMP, desc->msr, mgr->mgr.hw);
+        if (err)
+                return err;
+        /* Reserve memory for imapper nodes */
+        srcimp->imappers = kzalloc(sizeof(struct imapper)*desc->msr,
+                                   GFP_KERNEL);
+        if (NULL == srcimp->imappers) {
+                err = -ENOMEM;
+                goto error1;
+        }
+        /* Set srcimp specific operations */
+        srcimp->rsc.ops = &srcimp_basic_rsc_ops;
+        srcimp->ops = &srcimp_ops;
+        srcimp->mgr = mgr;
+        srcimp->rsc.ops->master(&srcimp->rsc);
+        return 0;
+error1:
+        rsc_uninit(&srcimp->rsc);
+        return err;
+}
+static int srcimp_rsc_uninit(struct srcimp *srcimp)
+{
+        if (NULL != srcimp->imappers) {
+                kfree(srcimp->imappers);
+                srcimp->imappers = NULL;
+        }
+        srcimp->ops = NULL;
+        srcimp->mgr = NULL;
+        rsc_uninit(&srcimp->rsc);
+        return 0;
+}
+static int get_srcimp_rsc(struct srcimp_mgr *mgr,
+                          const struct srcimp_desc *desc,
+                          struct srcimp **rsrcimp)
+{
+        int err, i;
+        unsigned int idx;
+        struct srcimp *srcimp;
+        unsigned long flags;
+        *rsrcimp = NULL;
+        /* Allocate mem for SRCIMP resource */
+        srcimp = kzalloc(sizeof(*srcimp), GFP_KERNEL);
+        if (NULL == srcimp) {
+                err = -ENOMEM;
+                return err;
+        }
+        /* Check whether there are sufficient SRCIMP resources. */
+        spin_lock_irqsave(&mgr->mgr_lock, flags);
+        for (i = 0; i < desc->msr; i++) {
+                err = mgr_get_resource(&mgr->mgr, 1, &idx);
+                if (err)
+                        break;
+                srcimp->idx[i] = idx;
+        }
+        spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+        if (err) {
+                printk(KERN_ERR "ctxfi: Can't meet SRCIMP resource request!\n");
+                goto error1;
+        }
+        err = srcimp_rsc_init(srcimp, desc, mgr);
+        if (err)
+                goto error1;
+        *rsrcimp = srcimp;
+        return 0;
+error1:
+        spin_lock_irqsave(&mgr->mgr_lock, flags);
+        for (i--; i >= 0; i--)
+                mgr_put_resource(&mgr->mgr, 1, srcimp->idx[i]);
+        spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+        kfree(srcimp);
+        return err;
+}
+static int put_srcimp_rsc(struct srcimp_mgr *mgr, struct srcimp *srcimp)
+{
+        unsigned long flags;
+        int i;
+        spin_lock_irqsave(&mgr->mgr_lock, flags);
+        for (i = 0; i < srcimp->rsc.msr; i++)
+                mgr_put_resource(&mgr->mgr, 1, srcimp->idx[i]);
+        spin_unlock_irqrestore(&mgr->mgr_lock, flags);
+        srcimp_rsc_uninit(srcimp);
+        kfree(srcimp);
+        return 0;
+}
+static int srcimp_map_op(void *data, struct imapper *entry)
+{
+        struct rsc_mgr *mgr = &((struct srcimp_mgr *)data)->mgr;
+        struct hw *hw = mgr->hw;
+        hw->srcimp_mgr_set_imaparc(mgr->ctrl_blk, entry->slot);
+        hw->srcimp_mgr_set_imapuser(mgr->ctrl_blk, entry->user);
+        hw->srcimp_mgr_set_imapnxt(mgr->ctrl_blk, entry->next);
+        hw->srcimp_mgr_set_imapaddr(mgr->ctrl_blk, entry->addr);
+        hw->srcimp_mgr_commit_write(mgr->hw, mgr->ctrl_blk);
+        return 0;
+}
+static int srcimp_imap_add(struct srcimp_mgr *mgr, struct imapper *entry)
+{
+        unsigned long flags;
+        int err;
+        spin_lock_irqsave(&mgr->imap_lock, flags);
+        if ((0 == entry->addr) && (mgr->init_imap_added)) {
+                input_mapper_delete(&mgr->imappers,
+                                    mgr->init_imap, srcimp_map_op, mgr);
+                mgr->init_imap_added = 0;
+        }
+        err = input_mapper_add(&mgr->imappers, entry, srcimp_map_op, mgr);
+        spin_unlock_irqrestore(&mgr->imap_lock, flags);
+        return err;
+}
+static int srcimp_imap_delete(struct srcimp_mgr *mgr, struct imapper *entry)
+{
+        unsigned long flags;
+        int err;
+        spin_lock_irqsave(&mgr->imap_lock, flags);
+        err = input_mapper_delete(&mgr->imappers, entry, srcimp_map_op, mgr);
+        if (list_empty(&mgr->imappers)) {
+                input_mapper_add(&mgr->imappers, mgr->init_imap,
+                                 srcimp_map_op, mgr);
+                mgr->init_imap_added = 1;
+        }
+        spin_unlock_irqrestore(&mgr->imap_lock, flags);
+        return err;
+}
+int srcimp_mgr_create(void *hw, struct srcimp_mgr **rsrcimp_mgr)
+{
+        int err;
+        struct srcimp_mgr *srcimp_mgr;
+        struct imapper *entry;
+        *rsrcimp_mgr = NULL;
+        srcimp_mgr = kzalloc(sizeof(*srcimp_mgr), GFP_KERNEL);
+        if (NULL == srcimp_mgr)
+                return -ENOMEM;
+        err = rsc_mgr_init(&srcimp_mgr->mgr, SRCIMP, SRCIMP_RESOURCE_NUM, hw);
+        if (err)
+                goto error1;
+        spin_lock_init(&srcimp_mgr->mgr_lock);
+        spin_lock_init(&srcimp_mgr->imap_lock);
+        INIT_LIST_HEAD(&srcimp_mgr->imappers);
+        entry = kzalloc(sizeof(*entry), GFP_KERNEL);
+        if (NULL == entry) {
+                err = -ENOMEM;
+                goto error2;
+        }
+        entry->slot = entry->addr = entry->next = entry->user = 0;
+        list_add(&entry->list, &srcimp_mgr->imappers);
+        srcimp_mgr->init_imap = entry;
+        srcimp_mgr->init_imap_added = 1;
+        srcimp_mgr->get_srcimp = get_srcimp_rsc;
+        srcimp_mgr->put_srcimp = put_srcimp_rsc;
+        srcimp_mgr->imap_add = srcimp_imap_add;
+        srcimp_mgr->imap_delete = srcimp_imap_delete;
+        *rsrcimp_mgr = srcimp_mgr;
+        return 0;
+error2:
+        rsc_mgr_uninit(&srcimp_mgr->mgr);
+error1:
+        kfree(srcimp_mgr);
+        return err;
+}
+int srcimp_mgr_destroy(struct srcimp_mgr *srcimp_mgr)
+{
+        unsigned long flags;
+        /* free src input mapper list */
+        spin_lock_irqsave(&srcimp_mgr->imap_lock, flags);
+        free_input_mapper_list(&srcimp_mgr->imappers);
+        spin_unlock_irqrestore(&srcimp_mgr->imap_lock, flags);
+        rsc_mgr_uninit(&srcimp_mgr->mgr);
+        kfree(srcimp_mgr);
+        return 0;
+}
diff --git a/sound/pci/ctxfi/ctsrc.h b/sound/pci/ctxfi/ctsrc.h
new file mode 100644
index 000000000000..259366aabcac
--- /dev/null
+++ b/sound/pci/ctxfi/ctsrc.h
@@ -0,0 +1,149 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File        ctsrc.h
+ *
+ * @Brief
+ * This file contains the definition of the Sample Rate Convertor
+ * resource management object.
+ *
+ * @Author      Liu Chun
+ * @Date        May 13 2008
+ *
+ */
+#ifndef CTSRC_H
+#define CTSRC_H
+#include "ctresource.h"
+#include "ctimap.h"
+#include <linux/spinlock.h>
+#include <linux/list.h>
+#define SRC_STATE_OFF   0x0
+#define SRC_STATE_INIT  0x4
+#define SRC_STATE_RUN   0x5
+#define SRC_SF_U8       0x0
+#define SRC_SF_S16      0x1
+#define SRC_SF_S24      0x2
+#define SRC_SF_S32      0x3
+#define SRC_SF_F32      0x4
+/* Define the descriptor of a src resource */
+enum SRCMODE {
+        MEMRD,          /* Read data from host memory */
+        MEMWR,          /* Write data to host memory */
+        ARCRW,          /* Read from and write to audio ring channel */
+        NUM_SRCMODES
+};
+struct src_rsc_ops;
+struct src {
+        struct rsc rsc; /* Basic resource info */
+        struct src *intlv; /* Pointer to next interleaved SRC in a series */
+        struct src_rsc_ops *ops; /* SRC specific operations */
+        /* Number of contiguous srcs for interleaved usage */
+        unsigned char multi;
+        unsigned char mode; /* Working mode of this SRC resource */
+};
+struct src_rsc_ops {
+        int (*set_state)(struct src *src, unsigned int state);
+        int (*set_bm)(struct src *src, unsigned int bm);
+        int (*set_sf)(struct src *src, unsigned int sf);
+        int (*set_pm)(struct src *src, unsigned int pm);
+        int (*set_rom)(struct src *src, unsigned int rom);
+        int (*set_vo)(struct src *src, unsigned int vo);
+        int (*set_st)(struct src *src, unsigned int st);
+        int (*set_bp)(struct src *src, unsigned int bp);
+        int (*set_cisz)(struct src *src, unsigned int cisz);
+        int (*set_ca)(struct src *src, unsigned int ca);
+        int (*set_sa)(struct src *src, unsigned int sa);
+        int (*set_la)(struct src *src, unsigned int la);
+        int (*set_pitch)(struct src *src, unsigned int pitch);
+        int (*set_clr_zbufs)(struct src *src);
+        int (*commit_write)(struct src *src);
+        int (*get_ca)(struct src *src);
+        int (*init)(struct src *src);
+        struct src* (*next_interleave)(struct src *src);
+};
+/* Define src resource request description info */
+struct src_desc {
+        /* Number of contiguous master srcs for interleaved usage */
+        unsigned char multi;
+        unsigned char msr;
+        unsigned char mode; /* Working mode of the requested srcs */
+};
+/* Define src manager object */
+struct src_mgr {
+        struct rsc_mgr mgr;     /* Basic resource manager info */
+        spinlock_t mgr_lock;
+         /* request src resource */
+        int (*get_src)(struct src_mgr *mgr,
+                       const struct src_desc *desc, struct src **rsrc);
+        /* return src resource */
+        int (*put_src)(struct src_mgr *mgr, struct src *src);
+        int (*src_enable_s)(struct src_mgr *mgr, struct src *src);
+        int (*src_enable)(struct src_mgr *mgr, struct src *src);
+        int (*src_disable)(struct src_mgr *mgr, struct src *src);
+        int (*commit_write)(struct src_mgr *mgr);
+};
+/* Define the descriptor of a SRC Input Mapper resource */
+struct srcimp_mgr;
+struct srcimp_rsc_ops;
+struct srcimp {
+        struct rsc rsc;
+        unsigned char idx[8];
+        struct imapper *imappers;
+        unsigned int mapped; /* A bit-map indicating which conj rsc is mapped */
+        struct srcimp_mgr *mgr;
+        struct srcimp_rsc_ops *ops;
+};
+struct srcimp_rsc_ops {
+        int (*map)(struct srcimp *srcimp, struct src *user, struct rsc *input);
+        int (*unmap)(struct srcimp *srcimp);
+};
+/* Define SRCIMP resource request description info */
+struct srcimp_desc {
+        unsigned int msr;
+};
+struct srcimp_mgr {
+        struct rsc_mgr mgr;     /* Basic resource manager info */
+        spinlock_t mgr_lock;
+        spinlock_t imap_lock;
+        struct list_head imappers;
+        struct imapper *init_imap;
+        unsigned int init_imap_added;
+         /* request srcimp resource */
+        int (*get_srcimp)(struct srcimp_mgr *mgr,
+                          const struct srcimp_desc *desc,
+                          struct srcimp **rsrcimp);
+        /* return srcimp resource */
+        int (*put_srcimp)(struct srcimp_mgr *mgr, struct srcimp *srcimp);
+        int (*imap_add)(struct srcimp_mgr *mgr, struct imapper *entry);
+        int (*imap_delete)(struct srcimp_mgr *mgr, struct imapper *entry);
+};
+/* Constructor and destructor of SRC resource manager */
+int src_mgr_create(void *hw, struct src_mgr **rsrc_mgr);
+int src_mgr_destroy(struct src_mgr *src_mgr);
+/* Constructor and destructor of SRCIMP resource manager */
+int srcimp_mgr_create(void *hw, struct srcimp_mgr **rsrc_mgr);
+int srcimp_mgr_destroy(struct srcimp_mgr *srcimp_mgr);
+#endif /* CTSRC_H */
diff --git a/sound/pci/ctxfi/cttimer.c b/sound/pci/ctxfi/cttimer.c
new file mode 100644
index 000000000000..779c6c3591a5
--- /dev/null
+++ b/sound/pci/ctxfi/cttimer.c
@@ -0,0 +1,441 @@
+/*
+ * PCM timer handling on ctxfi
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ */
+#include <linux/slab.h>
+#include <linux/math64.h>
+#include <linux/moduleparam.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include "ctatc.h"
+#include "cthardware.h"
+#include "cttimer.h"
+static int use_system_timer;
+MODULE_PARM_DESC(use_system_timer, "Foce to use system-timer");
+module_param(use_system_timer, bool, S_IRUGO);
+struct ct_timer_ops {
+        void (*init)(struct ct_timer_instance *);
+        void (*prepare)(struct ct_timer_instance *);
+        void (*start)(struct ct_timer_instance *);
+        void (*stop)(struct ct_timer_instance *);
+        void (*free_instance)(struct ct_timer_instance *);
+        void (*interrupt)(struct ct_timer *);
+        void (*free_global)(struct ct_timer *);
+};
+/* timer instance -- assigned to each PCM stream */
+struct ct_timer_instance {
+        spinlock_t lock;
+        struct ct_timer *timer_base;
+        struct ct_atc_pcm *apcm;
+        struct snd_pcm_substream *substream;
+        struct timer_list timer;
+        struct list_head instance_list;
+        struct list_head running_list;
+        unsigned int position;
+        unsigned int frag_count;
+        unsigned int running:1;
+        unsigned int need_update:1;
+};
+/* timer instance manager */
+struct ct_timer {
+        spinlock_t lock;                /* global timer lock (for xfitimer) */
+        spinlock_t list_lock;           /* lock for instance list */
+        struct ct_atc *atc;
+        struct ct_timer_ops *ops;
+        struct list_head instance_head;
+        struct list_head running_head;
+        unsigned int wc;                /* current wallclock */
+        unsigned int irq_handling:1;    /* in IRQ handling */
+        unsigned int reprogram:1;       /* need to reprogram the internval */
+        unsigned int running:1;         /* global timer running */
+};
+/*
+ * system-timer-based updates
+ */
+static void ct_systimer_callback(unsigned long data)
+{
+        struct ct_timer_instance *ti = (struct ct_timer_instance *)data;
+        struct snd_pcm_substream *substream = ti->substream;
+        struct snd_pcm_runtime *runtime = substream->runtime;
+        struct ct_atc_pcm *apcm = ti->apcm;
+        unsigned int period_size = runtime->period_size;
+        unsigned int buffer_size = runtime->buffer_size;
+        unsigned long flags;
+        unsigned int position, dist, interval;
+        position = substream->ops->pointer(substream);
+        dist = (position + buffer_size - ti->position) % buffer_size;
+        if (dist >= period_size ||
+            position / period_size != ti->position / period_size) {
+                apcm->interrupt(apcm);
+                ti->position = position;
+        }
+        /* Add extra HZ*5/1000 to avoid overrun issue when recording
+         * at 8kHz in 8-bit format or at 88kHz in 24-bit format. */
+        interval = ((period_size - (position % period_size))
+                   * HZ + (runtime->rate - 1)) / runtime->rate + HZ * 5 / 1000;
+        spin_lock_irqsave(&ti->lock, flags);
+        if (ti->running)
+                mod_timer(&ti->timer, jiffies + interval);
+        spin_unlock_irqrestore(&ti->lock, flags);
+}
+static void ct_systimer_init(struct ct_timer_instance *ti)
+{
+        setup_timer(&ti->timer, ct_systimer_callback,
+                    (unsigned long)ti);
+}
+static void ct_systimer_start(struct ct_timer_instance *ti)
+{
+        struct snd_pcm_runtime *runtime = ti->substream->runtime;
+        unsigned long flags;
+        spin_lock_irqsave(&ti->lock, flags);
+        ti->running = 1;
+        mod_timer(&ti->timer,
+                  jiffies + (runtime->period_size * HZ +
+                             (runtime->rate - 1)) / runtime->rate);
+        spin_unlock_irqrestore(&ti->lock, flags);
+}
+static void ct_systimer_stop(struct ct_timer_instance *ti)
+{
+        unsigned long flags;
+        spin_lock_irqsave(&ti->lock, flags);
+        ti->running = 0;
+        del_timer(&ti->timer);
+        spin_unlock_irqrestore(&ti->lock, flags);
+}
+static void ct_systimer_prepare(struct ct_timer_instance *ti)
+{
+        ct_systimer_stop(ti);
+        try_to_del_timer_sync(&ti->timer);
+}
+#define ct_systimer_free        ct_systimer_prepare
+static struct ct_timer_ops ct_systimer_ops = {
+        .init = ct_systimer_init,
+        .free_instance = ct_systimer_free,
+        .prepare = ct_systimer_prepare,
+        .start = ct_systimer_start,
+        .stop = ct_systimer_stop,
+};
+/*
+ * Handling multiple streams using a global emu20k1 timer irq
+ */
+#define CT_TIMER_FREQ   48000
+#define MIN_TICKS       1
+#define MAX_TICKS       ((1 << 13) - 1)
+static void ct_xfitimer_irq_rearm(struct ct_timer *atimer, int ticks)
+{
+        struct hw *hw = atimer->atc->hw;
+        if (ticks > MAX_TICKS)
+                ticks = MAX_TICKS;
+        hw->set_timer_tick(hw, ticks);
+        if (!atimer->running)
+                hw->set_timer_irq(hw, 1);
+        atimer->running = 1;
+}
+static void ct_xfitimer_irq_stop(struct ct_timer *atimer)
+{
+        if (atimer->running) {
+                struct hw *hw = atimer->atc->hw;
+                hw->set_timer_irq(hw, 0);
+                hw->set_timer_tick(hw, 0);
+                atimer->running = 0;
+        }
+}
+static inline unsigned int ct_xfitimer_get_wc(struct ct_timer *atimer)
+{
+        struct hw *hw = atimer->atc->hw;
+        return hw->get_wc(hw);
+}
+/*
+ * reprogram the timer interval;
+ * checks the running instance list and determines the next timer interval.
+ * also updates the each stream position, returns the number of streams
+ * to call snd_pcm_period_elapsed() appropriately
+ *
+ * call this inside the lock and irq disabled
+ */
+static int ct_xfitimer_reprogram(struct ct_timer *atimer)
+{
+        struct ct_timer_instance *ti;
+        unsigned int min_intr = (unsigned int)-1;
+        int updates = 0;
+        unsigned int wc, diff;
+        if (list_empty(&atimer->running_head)) {
+                ct_xfitimer_irq_stop(atimer);
+                atimer->reprogram = 0; /* clear flag */
+                return 0;
+        }
+        wc = ct_xfitimer_get_wc(atimer);
+        diff = wc - atimer->wc;
+        atimer->wc = wc;
+        list_for_each_entry(ti, &atimer->running_head, running_list) {
+                if (ti->frag_count > diff)
+                        ti->frag_count -= diff;
+                else {
+                        unsigned int pos;
+                        unsigned int period_size, rate;
+                        period_size = ti->substream->runtime->period_size;
+                        rate = ti->substream->runtime->rate;
+                        pos = ti->substream->ops->pointer(ti->substream);
+                        if (pos / period_size != ti->position / period_size) {
+                                ti->need_update = 1;
+                                ti->position = pos;
+                                updates++;
+                        }
+                        pos %= period_size;
+                        pos = period_size - pos;
+                        ti->frag_count = div_u64((u64)pos * CT_TIMER_FREQ +
+                                                 rate - 1, rate);
+                }
+                if (ti->frag_count < min_intr)
+                        min_intr = ti->frag_count;
+        }
+        if (min_intr < MIN_TICKS)
+                min_intr = MIN_TICKS;
+        ct_xfitimer_irq_rearm(atimer, min_intr);
+        atimer->reprogram = 0; /* clear flag */
+        return updates;
+}
+/* look through the instance list and call period_elapsed if needed */
+static void ct_xfitimer_check_period(struct ct_timer *atimer)
+{
+        struct ct_timer_instance *ti;
+        unsigned long flags;
+        spin_lock_irqsave(&atimer->list_lock, flags);
+        list_for_each_entry(ti, &atimer->instance_head, instance_list) {
+                if (ti->need_update) {
+                        ti->need_update = 0;
+                        ti->apcm->interrupt(ti->apcm);
+                }
+        }
+        spin_unlock_irqrestore(&atimer->list_lock, flags);
+}
+/* Handle timer-interrupt */
+static void ct_xfitimer_callback(struct ct_timer *atimer)
+{
+        int update;
+        unsigned long flags;
+        spin_lock_irqsave(&atimer->lock, flags);
+        atimer->irq_handling = 1;
+        do {
+                update = ct_xfitimer_reprogram(atimer);
+                spin_unlock(&atimer->lock);
+                if (update)
+                        ct_xfitimer_check_period(atimer);
+                spin_lock(&atimer->lock);
+        } while (atimer->reprogram);
+        atimer->irq_handling = 0;
+        spin_unlock_irqrestore(&atimer->lock, flags);
+}
+static void ct_xfitimer_prepare(struct ct_timer_instance *ti)
+{
+        ti->frag_count = ti->substream->runtime->period_size;
+        ti->need_update = 0;
+}
+/* start/stop the timer */
+static void ct_xfitimer_update(struct ct_timer *atimer)
+{
+        unsigned long flags;
+        int update;
+        spin_lock_irqsave(&atimer->lock, flags);
+        if (atimer->irq_handling) {
+                /* reached from IRQ handler; let it handle later */
+                atimer->reprogram = 1;
+                spin_unlock_irqrestore(&atimer->lock, flags);
+                return;
+        }
+        ct_xfitimer_irq_stop(atimer);
+        update = ct_xfitimer_reprogram(atimer);
+        spin_unlock_irqrestore(&atimer->lock, flags);
+        if (update)
+                ct_xfitimer_check_period(atimer);
+}
+static void ct_xfitimer_start(struct ct_timer_instance *ti)
+{
+        struct ct_timer *atimer = ti->timer_base;
+        unsigned long flags;
+        spin_lock_irqsave(&atimer->lock, flags);
+        if (list_empty(&ti->running_list))
+                atimer->wc = ct_xfitimer_get_wc(atimer);
+        list_add(&ti->running_list, &atimer->running_head);
+        spin_unlock_irqrestore(&atimer->lock, flags);
+        ct_xfitimer_update(atimer);
+}
+static void ct_xfitimer_stop(struct ct_timer_instance *ti)
+{
+        struct ct_timer *atimer = ti->timer_base;
+        unsigned long flags;
+        spin_lock_irqsave(&atimer->lock, flags);
+        list_del_init(&ti->running_list);
+        ti->need_update = 0;
+        spin_unlock_irqrestore(&atimer->lock, flags);
+        ct_xfitimer_update(atimer);
+}
+static void ct_xfitimer_free_global(struct ct_timer *atimer)
+{
+        ct_xfitimer_irq_stop(atimer);
+}
+static struct ct_timer_ops ct_xfitimer_ops = {
+        .prepare = ct_xfitimer_prepare,
+        .start = ct_xfitimer_start,
+        .stop = ct_xfitimer_stop,
+        .interrupt = ct_xfitimer_callback,
+        .free_global = ct_xfitimer_free_global,
+};
+/*
+ * timer instance
+ */
+struct ct_timer_instance *
+ct_timer_instance_new(struct ct_timer *atimer, struct ct_atc_pcm *apcm)
+{
+        struct ct_timer_instance *ti;
+        ti = kzalloc(sizeof(*ti), GFP_KERNEL);
+        if (!ti)
+                return NULL;
+        spin_lock_init(&ti->lock);
+        INIT_LIST_HEAD(&ti->instance_list);
+        INIT_LIST_HEAD(&ti->running_list);
+        ti->timer_base = atimer;
+        ti->apcm = apcm;
+        ti->substream = apcm->substream;
+        if (atimer->ops->init)
+                atimer->ops->init(ti);
+        spin_lock_irq(&atimer->list_lock);
+        list_add(&ti->instance_list, &atimer->instance_head);
+        spin_unlock_irq(&atimer->list_lock);
+        return ti;
+}
+void ct_timer_prepare(struct ct_timer_instance *ti)
+{
+        if (ti->timer_base->ops->prepare)
+                ti->timer_base->ops->prepare(ti);
+        ti->position = 0;
+        ti->running = 0;
+}
+void ct_timer_start(struct ct_timer_instance *ti)
+{
+        struct ct_timer *atimer = ti->timer_base;
+        atimer->ops->start(ti);
+}
+void ct_timer_stop(struct ct_timer_instance *ti)
+{
+        struct ct_timer *atimer = ti->timer_base;
+        atimer->ops->stop(ti);
+}
+void ct_timer_instance_free(struct ct_timer_instance *ti)
+{
+        struct ct_timer *atimer = ti->timer_base;
+        atimer->ops->stop(ti); /* to be sure */
+        if (atimer->ops->free_instance)
+                atimer->ops->free_instance(ti);
+        spin_lock_irq(&atimer->list_lock);
+        list_del(&ti->instance_list);
+        spin_unlock_irq(&atimer->list_lock);
+        kfree(ti);
+}
+/*
+ * timer manager
+ */
+static void ct_timer_interrupt(void *data, unsigned int status)
+{
+        struct ct_timer *timer = data;
+        /* Interval timer interrupt */
+        if ((status & IT_INT) && timer->ops->interrupt)
+                timer->ops->interrupt(timer);
+}
+struct ct_timer *ct_timer_new(struct ct_atc *atc)
+{
+        struct ct_timer *atimer;
+        struct hw *hw;
+        atimer = kzalloc(sizeof(*atimer), GFP_KERNEL);
+        if (!atimer)
+                return NULL;
+        spin_lock_init(&atimer->lock);
+        spin_lock_init(&atimer->list_lock);
+        INIT_LIST_HEAD(&atimer->instance_head);
+        INIT_LIST_HEAD(&atimer->running_head);
+        atimer->atc = atc;
+        hw = atc->hw;
+        if (!use_system_timer && hw->set_timer_irq) {
+                snd_printd(KERN_INFO "ctxfi: Use xfi-native timer\n");
+                atimer->ops = &ct_xfitimer_ops;
+                hw->irq_callback_data = atimer;
+                hw->irq_callback = ct_timer_interrupt;
+        } else {
+                snd_printd(KERN_INFO "ctxfi: Use system timer\n");
+                atimer->ops = &ct_systimer_ops;
+        }
+        return atimer;
+}
+void ct_timer_free(struct ct_timer *atimer)
+{
+        struct hw *hw = atimer->atc->hw;
+        hw->irq_callback = NULL;
+        if (atimer->ops->free_global)
+                atimer->ops->free_global(atimer);
+        kfree(atimer);
+}
diff --git a/sound/pci/ctxfi/cttimer.h b/sound/pci/ctxfi/cttimer.h
new file mode 100644
index 000000000000..979348229291
--- /dev/null
+++ b/sound/pci/ctxfi/cttimer.h
@@ -0,0 +1,29 @@
+/*
+ * Timer handling
+ */
+#ifndef __CTTIMER_H
+#define __CTTIMER_H
+#include <linux/spinlock.h>
+#include <linux/timer.h>
+#include <linux/list.h>
+struct snd_pcm_substream;
+struct ct_atc;
+struct ct_atc_pcm;
+struct ct_timer;
+struct ct_timer_instance;
+struct ct_timer *ct_timer_new(struct ct_atc *atc);
+void ct_timer_free(struct ct_timer *atimer);
+struct ct_timer_instance *
+ct_timer_instance_new(struct ct_timer *atimer, struct ct_atc_pcm *apcm);
+void ct_timer_instance_free(struct ct_timer_instance *ti);
+void ct_timer_start(struct ct_timer_instance *ti);
+void ct_timer_stop(struct ct_timer_instance *ti);
+void ct_timer_prepare(struct ct_timer_instance *ti);
+#endif /* __CTTIMER_H */
diff --git a/sound/pci/ctxfi/ctvmem.c b/sound/pci/ctxfi/ctvmem.c
new file mode 100644
index 000000000000..67665a7e43c6
--- /dev/null
+++ b/sound/pci/ctxfi/ctvmem.c
@@ -0,0 +1,250 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File    ctvmem.c
+ *
+ * @Brief
+ * This file contains the implementation of virtual memory management object
+ * for card device.
+ *
+ * @Author Liu Chun
+ * @Date Apr 1 2008
+ */
+#include "ctvmem.h"
+#include <linux/slab.h>
+#include <linux/mm.h>
+#include <linux/io.h>
+#include <sound/pcm.h>
+#define CT_PTES_PER_PAGE (CT_PAGE_SIZE / sizeof(void *))
+#define CT_ADDRS_PER_PAGE (CT_PTES_PER_PAGE * CT_PAGE_SIZE)
+/* *
+ * Find or create vm block based on requested @size.
+ * @size must be page aligned.
+ * */
+static struct ct_vm_block *
+get_vm_block(struct ct_vm *vm, unsigned int size)
+{
+        struct ct_vm_block *block = NULL, *entry;
+        struct list_head *pos;
+        size = CT_PAGE_ALIGN(size);
+        if (size > vm->size) {
+                printk(KERN_ERR "ctxfi: Fail! No sufficient device virtural "
+                                  "memory space available!\n");
+                return NULL;
+        }
+        mutex_lock(&vm->lock);
+        list_for_each(pos, &vm->unused) {
+                entry = list_entry(pos, struct ct_vm_block, list);
+                if (entry->size >= size)
+                        break; /* found a block that is big enough */
+        }
+        if (pos == &vm->unused)
+                goto out;
+        if (entry->size == size) {
+                /* Move the vm node from unused list to used list directly */
+                list_del(&entry->list);
+                list_add(&entry->list, &vm->used);
+                vm->size -= size;
+                block = entry;
+                goto out;
+        }
+        block = kzalloc(sizeof(*block), GFP_KERNEL);
+        if (NULL == block)
+                goto out;
+        block->addr = entry->addr;
+        block->size = size;
+        list_add(&block->list, &vm->used);
+        entry->addr += size;
+        entry->size -= size;
+        vm->size -= size;
+ out:
+        mutex_unlock(&vm->lock);
+        return block;
+}
+static void put_vm_block(struct ct_vm *vm, struct ct_vm_block *block)
+{
+        struct ct_vm_block *entry, *pre_ent;
+        struct list_head *pos, *pre;
+        block->size = CT_PAGE_ALIGN(block->size);
+        mutex_lock(&vm->lock);
+        list_del(&block->list);
+        vm->size += block->size;
+        list_for_each(pos, &vm->unused) {
+                entry = list_entry(pos, struct ct_vm_block, list);
+                if (entry->addr >= (block->addr + block->size))
+                        break; /* found a position */
+        }
+        if (pos == &vm->unused) {
+                list_add_tail(&block->list, &vm->unused);
+                entry = block;
+        } else {
+                if ((block->addr + block->size) == entry->addr) {
+                        entry->addr = block->addr;
+                        entry->size += block->size;
+                        kfree(block);
+                } else {
+                        __list_add(&block->list, pos->prev, pos);
+                        entry = block;
+                }
+        }
+        pos = &entry->list;
+        pre = pos->prev;
+        while (pre != &vm->unused) {
+                entry = list_entry(pos, struct ct_vm_block, list);
+                pre_ent = list_entry(pre, struct ct_vm_block, list);
+                if ((pre_ent->addr + pre_ent->size) > entry->addr)
+                        break;
+                pre_ent->size += entry->size;
+                list_del(pos);
+                kfree(entry);
+                pos = pre;
+                pre = pos->prev;
+        }
+        mutex_unlock(&vm->lock);
+}
+/* Map host addr (kmalloced/vmalloced) to device logical addr. */
+static struct ct_vm_block *
+ct_vm_map(struct ct_vm *vm, struct snd_pcm_substream *substream, int size)
+{
+        struct ct_vm_block *block;
+        unsigned int pte_start;
+        unsigned i, pages;
+        unsigned long *ptp;
+        block = get_vm_block(vm, size);
+        if (block == NULL) {
+                printk(KERN_ERR "ctxfi: No virtual memory block that is big "
+                                  "enough to allocate!\n");
+                return NULL;
+        }
+        ptp = vm->ptp[0];
+        pte_start = (block->addr >> CT_PAGE_SHIFT);
+        pages = block->size >> CT_PAGE_SHIFT;
+        for (i = 0; i < pages; i++) {
+                unsigned long addr;
+                addr = snd_pcm_sgbuf_get_addr(substream, i << CT_PAGE_SHIFT);
+                ptp[pte_start + i] = addr;
+        }
+        block->size = size;
+        return block;
+}
+static void ct_vm_unmap(struct ct_vm *vm, struct ct_vm_block *block)
+{
+        /* do unmapping */
+        put_vm_block(vm, block);
+}
+/* *
+ * return the host (kmalloced) addr of the @index-th device
+ * page talbe page on success, or NULL on failure.
+ * The first returned NULL indicates the termination.
+ * */
+static void *
+ct_get_ptp_virt(struct ct_vm *vm, int index)
+{
+        void *addr;
+        addr = (index >= CT_PTP_NUM) ? NULL : vm->ptp[index];
+        return addr;
+}
+int ct_vm_create(struct ct_vm **rvm)
+{
+        struct ct_vm *vm;
+        struct ct_vm_block *block;
+        int i;
+        *rvm = NULL;
+        vm = kzalloc(sizeof(*vm), GFP_KERNEL);
+        if (NULL == vm)
+                return -ENOMEM;
+        mutex_init(&vm->lock);
+        /* Allocate page table pages */
+        for (i = 0; i < CT_PTP_NUM; i++) {
+                vm->ptp[i] = kmalloc(PAGE_SIZE, GFP_KERNEL);
+                if (NULL == vm->ptp[i])
+                        break;
+        }
+        if (!i) {
+                /* no page table pages are allocated */
+                kfree(vm);
+                return -ENOMEM;
+        }
+        vm->size = CT_ADDRS_PER_PAGE * i;
+        /* Initialise remaining ptps */
+        for (; i < CT_PTP_NUM; i++)
+                vm->ptp[i] = NULL;
+        vm->map = ct_vm_map;
+        vm->unmap = ct_vm_unmap;
+        vm->get_ptp_virt = ct_get_ptp_virt;
+        INIT_LIST_HEAD(&vm->unused);
+        INIT_LIST_HEAD(&vm->used);
+        block = kzalloc(sizeof(*block), GFP_KERNEL);
+        if (NULL != block) {
+                block->addr = 0;
+                block->size = vm->size;
+                list_add(&block->list, &vm->unused);
+        }
+        *rvm = vm;
+        return 0;
+}
+/* The caller must ensure no mapping pages are being used
+ * by hardware before calling this function */
+void ct_vm_destroy(struct ct_vm *vm)
+{
+        int i;
+        struct list_head *pos;
+        struct ct_vm_block *entry;
+        /* free used and unused list nodes */
+        while (!list_empty(&vm->used)) {
+                pos = vm->used.next;
+                list_del(pos);
+                entry = list_entry(pos, struct ct_vm_block, list);
+                kfree(entry);
+        }
+        while (!list_empty(&vm->unused)) {
+                pos = vm->unused.next;
+                list_del(pos);
+                entry = list_entry(pos, struct ct_vm_block, list);
+                kfree(entry);
+        }
+        /* free allocated page table pages */
+        for (i = 0; i < CT_PTP_NUM; i++)
+                kfree(vm->ptp[i]);
+        vm->size = 0;
+        kfree(vm);
+}
diff --git a/sound/pci/ctxfi/ctvmem.h b/sound/pci/ctxfi/ctvmem.h
new file mode 100644
index 000000000000..01e4fd0386a3
--- /dev/null
+++ b/sound/pci/ctxfi/ctvmem.h
@@ -0,0 +1,61 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File    ctvmem.h
+ *
+ * @Brief
+ * This file contains the definition of virtual memory management object
+ * for card device.
+ *
+ * @Author Liu Chun
+ * @Date Mar 28 2008
+ */
+#ifndef CTVMEM_H
+#define CTVMEM_H
+#define CT_PTP_NUM      1       /* num of device page table pages */
+#include <linux/mutex.h>
+#include <linux/list.h>
+/* The chip can handle the page table of 4k pages
+ * (emu20k1 can handle even 8k pages, but we don't use it right now)
+ */
+#define CT_PAGE_SIZE    4096
+#define CT_PAGE_SHIFT   12
+#define CT_PAGE_MASK    (~(PAGE_SIZE - 1))
+#define CT_PAGE_ALIGN(addr)     ALIGN(addr, CT_PAGE_SIZE)
+struct ct_vm_block {
+        unsigned int addr;      /* starting logical addr of this block */
+        unsigned int size;      /* size of this device virtual mem block */
+        struct list_head list;
+};
+struct snd_pcm_substream;
+/* Virtual memory management object for card device */
+struct ct_vm {
+        void *ptp[CT_PTP_NUM];          /* Device page table pages */
+        unsigned int size;              /* Available addr space in bytes */
+        struct list_head unused;        /* List of unused blocks */
+        struct list_head used;          /* List of used blocks */
+        struct mutex lock;
+        /* Map host addr (kmalloced/vmalloced) to device logical addr. */
+        struct ct_vm_block *(*map)(struct ct_vm *, struct snd_pcm_substream *,
+                                   int size);
+        /* Unmap device logical addr area. */
+        void (*unmap)(struct ct_vm *, struct ct_vm_block *block);
+        void *(*get_ptp_virt)(struct ct_vm *vm, int index);
+};
+int ct_vm_create(struct ct_vm **rvm);
+void ct_vm_destroy(struct ct_vm *vm);
+#endif /* CTVMEM_H */
diff --git a/sound/pci/ctxfi/xfi.c b/sound/pci/ctxfi/xfi.c
new file mode 100644
index 000000000000..2d3dd89af151
--- /dev/null
+++ b/sound/pci/ctxfi/xfi.c
@@ -0,0 +1,142 @@
+/*
+ * xfi linux driver.
+ *
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ */
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/moduleparam.h>
+#include <linux/pci_ids.h>
+#include <sound/core.h>
+#include <sound/initval.h>
+#include "ctatc.h"
+#include "cthardware.h"
+MODULE_AUTHOR("Creative Technology Ltd");
+MODULE_DESCRIPTION("X-Fi driver version 1.03");
+MODULE_LICENSE("GPL v2");
+MODULE_SUPPORTED_DEVICE("{{Creative Labs, Sound Blaster X-Fi}");
+static unsigned int reference_rate = 48000;
+static unsigned int multiple = 2;
+MODULE_PARM_DESC(reference_rate, "Reference rate (default=48000)");
+module_param(reference_rate, uint, S_IRUGO);
+MODULE_PARM_DESC(multiple, "Rate multiplier (default=2)");
+module_param(multiple, uint, S_IRUGO);
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
+static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for Creative X-Fi driver");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for Creative X-Fi driver");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable Creative X-Fi driver");
+static struct pci_device_id ct_pci_dev_ids[] = {
+        /* only X-Fi is supported, so... */
+        { PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K1),
+          .driver_data = ATC20K1,
+        },
+        { PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K2),
+          .driver_data = ATC20K2,
+        },
+        { 0, }
+};
+MODULE_DEVICE_TABLE(pci, ct_pci_dev_ids);
+static int __devinit
+ct_card_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
+{
+        static int dev;
+        struct snd_card *card;
+        struct ct_atc *atc;
+        int err;
+        if (dev >= SNDRV_CARDS)
+                return -ENODEV;
+        if (!enable[dev]) {
+                dev++;
+                return -ENOENT;
+        }
+        err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
+        if (err)
+                return err;
+        if ((reference_rate != 48000) && (reference_rate != 44100)) {
+                printk(KERN_ERR "ctxfi: Invalid reference_rate value %u!!!\n",
+                       reference_rate);
+                printk(KERN_ERR "ctxfi: The valid values for reference_rate "
+                       "are 48000 and 44100, Value 48000 is assumed.\n");
+                reference_rate = 48000;
+        }
+        if ((multiple != 1) && (multiple != 2)) {
+                printk(KERN_ERR "ctxfi: Invalid multiple value %u!!!\n",
+                       multiple);
+                printk(KERN_ERR "ctxfi: The valid values for multiple are "
+                       "1 and 2, Value 2 is assumed.\n");
+                multiple = 2;
+        }
+        err = ct_atc_create(card, pci, reference_rate, multiple,
+                            pci_id->driver_data, &atc);
+        if (err < 0)
+                goto error;
+        card->private_data = atc;
+        /* Create alsa devices supported by this card */
+        err = ct_atc_create_alsa_devs(atc);
+        if (err < 0)
+                goto error;
+        strcpy(card->driver, "SB-XFi");
+        strcpy(card->shortname, "Creative X-Fi");
+        snprintf(card->longname, sizeof(card->longname), "%s %s %s",
+                 card->shortname, atc->chip_name, atc->model_name);
+        err = snd_card_register(card);
+        if (err < 0)
+                goto error;
+        pci_set_drvdata(pci, card);
+        dev++;
+        return 0;
+error:
+        snd_card_free(card);
+        return err;
+}
+static void __devexit ct_card_remove(struct pci_dev *pci)
+{
+        snd_card_free(pci_get_drvdata(pci));
+        pci_set_drvdata(pci, NULL);
+}
+static struct pci_driver ct_driver = {
+        .name = "SB-XFi",
+        .id_table = ct_pci_dev_ids,
+        .probe = ct_card_probe,
+        .remove = __devexit_p(ct_card_remove),
+};
+static int __init ct_card_init(void)
+{
+        return pci_register_driver(&ct_driver);
+}
+static void __exit ct_card_exit(void)
+{
+        pci_unregister_driver(&ct_driver);
+}
+module_init(ct_card_init)
+module_exit(ct_card_exit)