Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 3097 insertions, 0 deletions

diff --git a/sound/oss/es1371.c b/sound/oss/es1371.c
new file mode 100644
index 000000000000..a50fddaeea21
--- /dev/null
+++ b/sound/oss/es1371.c
@@ -0,0 +1,3097 @@
+/*****************************************************************************/
+
+/*
+ *      es1371.c  --  Creative Ensoniq ES1371.
+ *
+ *      Copyright (C) 1998-2001, 2003  Thomas Sailer (t.sailer@alumni.ethz.ch)
+ *
+ *      This program is free software; you can redistribute it and/or modify
+ *      it under the terms of the GNU General Public License as published by
+ *      the Free Software Foundation; either version 2 of the License, or
+ *      (at your option) any later version.
+ *
+ *      This program is distributed in the hope that it will be useful,
+ *      but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *      GNU General Public License for more details.
+ *
+ *      You should have received a copy of the GNU General Public License
+ *      along with this program; if not, write to the Free Software
+ *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Special thanks to Ensoniq
+ *
+ *  Supported devices:
+ *  /dev/dsp    standard /dev/dsp device, (mostly) OSS compatible
+ *  /dev/mixer  standard /dev/mixer device, (mostly) OSS compatible
+ *  /dev/dsp1   additional DAC, like /dev/dsp, but outputs to mixer "SYNTH" setting
+ *  /dev/midi   simple MIDI UART interface, no ioctl
+ *
+ *  NOTE: the card does not have any FM/Wavetable synthesizer, it is supposed
+ *  to be done in software. That is what /dev/dac is for. By now (Q2 1998)
+ *  there are several MIDI to PCM (WAV) packages, one of them is timidity.
+ *
+ *  Revision history
+ *    04.06.1998   0.1   Initial release
+ *                       Mixer stuff should be overhauled; especially optional AC97 mixer bits
+ *                       should be detected. This results in strange behaviour of some mixer
+ *                       settings, like master volume and mic.
+ *    08.06.1998   0.2   First release using Alan Cox' soundcore instead of miscdevice
+ *    03.08.1998   0.3   Do not include modversions.h
+ *                       Now mixer behaviour can basically be selected between
+ *                       "OSS documented" and "OSS actual" behaviour
+ *    31.08.1998   0.4   Fix realplayer problems - dac.count issues
+ *    27.10.1998   0.5   Fix joystick support
+ *                       -- Oliver Neukum (c188@org.chemie.uni-muenchen.de)
+ *    10.12.1998   0.6   Fix drain_dac trying to wait on not yet initialized DMA
+ *    23.12.1998   0.7   Fix a few f_file & FMODE_ bugs
+ *                       Don't wake up app until there are fragsize bytes to read/write
+ *    06.01.1999   0.8   remove the silly SA_INTERRUPT flag.
+ *                       hopefully killed the egcs section type conflict
+ *    12.03.1999   0.9   cinfo.blocks should be reset after GETxPTR ioctl.
+ *                       reported by Johan Maes <joma@telindus.be>
+ *    22.03.1999   0.10  return EAGAIN instead of EBUSY when O_NONBLOCK
+ *                       read/write cannot be executed
+ *    07.04.1999   0.11  implemented the following ioctl's: SOUND_PCM_READ_RATE, 
+ *                       SOUND_PCM_READ_CHANNELS, SOUND_PCM_READ_BITS; 
+ *                       Alpha fixes reported by Peter Jones <pjones@redhat.com>
+ *                       Another Alpha fix (wait_src_ready in init routine)
+ *                       reported by "Ivan N. Kokshaysky" <ink@jurassic.park.msu.ru>
+ *                       Note: joystick address handling might still be wrong on archs
+ *                       other than i386
+ *    15.06.1999   0.12  Fix bad allocation bug.
+ *                       Thanks to Deti Fliegl <fliegl@in.tum.de>
+ *    28.06.1999   0.13  Add pci_set_master
+ *    03.08.1999   0.14  adapt to Linus' new __setup/__initcall
+ *                       added kernel command line option "es1371=joystickaddr"
+ *                       removed CONFIG_SOUND_ES1371_JOYPORT_BOOT kludge
+ *    10.08.1999   0.15  (Re)added S/PDIF module option for cards revision >= 4.
+ *                       Initial version by Dave Platt <dplatt@snulbug.mtview.ca.us>.
+ *                       module_init/__setup fixes
+ *    08.16.1999   0.16  Joe Cotellese <joec@ensoniq.com>
+ *                       Added detection for ES1371 revision ID so that we can
+ *                       detect the ES1373 and later parts.
+ *                       added AC97 #defines for readability
+ *                       added a /proc file system for dumping hardware state
+ *                       updated SRC and CODEC w/r functions to accommodate bugs
+ *                       in some versions of the ES137x chips.
+ *    31.08.1999   0.17  add spin_lock_init
+ *                       replaced current->state = x with set_current_state(x)
+ *    03.09.1999   0.18  change read semantics for MIDI to match
+ *                       OSS more closely; remove possible wakeup race
+ *    21.10.1999   0.19  Round sampling rates, requested by
+ *                       Kasamatsu Kenichi <t29w0267@ip.media.kyoto-u.ac.jp>
+ *    27.10.1999   0.20  Added SigmaTel 3D enhancement string
+ *                       Codec ID printing changes
+ *    28.10.1999   0.21  More waitqueue races fixed
+ *                       Joe Cotellese <joec@ensoniq.com>
+ *                       Changed PCI detection routine so we can more easily
+ *                       detect ES137x chip and derivatives.
+ *    05.01.2000   0.22  Should now work with rev7 boards; patch by
+ *                       Eric Lemar, elemar@cs.washington.edu
+ *    08.01.2000   0.23  Prevent some ioctl's from returning bad count values on underrun/overrun;
+ *                       Tim Janik's BSE (Bedevilled Sound Engine) found this
+ *    07.02.2000   0.24  Use pci_alloc_consistent and pci_register_driver
+ *    07.02.2000   0.25  Use ac97_codec
+ *    01.03.2000   0.26  SPDIF patch by Mikael Bouillot <mikael.bouillot@bigfoot.com>
+ *                       Use pci_module_init
+ *    21.11.2000   0.27  Initialize dma buffers in poll, otherwise poll may return a bogus mask
+ *    12.12.2000   0.28  More dma buffer initializations, patch from
+ *                       Tjeerd Mulder <tjeerd.mulder@fujitsu-siemens.com>
+ *    05.01.2001   0.29  Hopefully updates will not be required anymore when Creative bumps
+ *                       the CT5880 revision.
+ *                       suggested by Stephan Müller <smueller@chronox.de>
+ *    31.01.2001   0.30  Register/Unregister gameport
+ *                       Fix SETTRIGGER non OSS API conformity
+ *    14.07.2001   0.31  Add list of laptops needing amplifier control
+ *    03.01.2003   0.32  open_mode fixes from Georg Acher <acher@in.tum.de>
+ */
+
+/*****************************************************************************/
+      
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/ioport.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+#include <linux/sound.h>
+#include <linux/slab.h>
+#include <linux/soundcard.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/poll.h>
+#include <linux/bitops.h>
+#include <linux/proc_fs.h>
+#include <linux/spinlock.h>
+#include <linux/smp_lock.h>
+#include <linux/ac97_codec.h>
+#include <linux/gameport.h>
+#include <linux/wait.h>
+
+#include <asm/io.h>
+#include <asm/page.h>
+#include <asm/uaccess.h>
+
+/* --------------------------------------------------------------------- */
+
+#undef OSS_DOCUMENTED_MIXER_SEMANTICS
+#define ES1371_DEBUG
+#define DBG(x) {}
+/*#define DBG(x) {x}*/
+
+/* --------------------------------------------------------------------- */
+
+#ifndef PCI_VENDOR_ID_ENSONIQ
+#define PCI_VENDOR_ID_ENSONIQ        0x1274    
+#endif
+
+#ifndef PCI_VENDOR_ID_ECTIVA
+#define PCI_VENDOR_ID_ECTIVA         0x1102
+#endif
+
+#ifndef PCI_DEVICE_ID_ENSONIQ_ES1371
+#define PCI_DEVICE_ID_ENSONIQ_ES1371 0x1371
+#endif
+
+#ifndef PCI_DEVICE_ID_ENSONIQ_CT5880
+#define PCI_DEVICE_ID_ENSONIQ_CT5880 0x5880
+#endif
+
+#ifndef PCI_DEVICE_ID_ECTIVA_EV1938
+#define PCI_DEVICE_ID_ECTIVA_EV1938 0x8938
+#endif
+
+/* ES1371 chip ID */
+/* This is a little confusing because all ES1371 compatible chips have the
+   same DEVICE_ID, the only thing differentiating them is the REV_ID field.
+   This is only significant if you want to enable features on the later parts.
+   Yes, I know it's stupid and why didn't we use the sub IDs?
+*/
+#define ES1371REV_ES1373_A  0x04
+#define ES1371REV_ES1373_B  0x06
+#define ES1371REV_CT5880_A  0x07
+#define CT5880REV_CT5880_C  0x02
+#define CT5880REV_CT5880_D  0x03
+#define ES1371REV_ES1371_B  0x09
+#define EV1938REV_EV1938_A  0x00
+#define ES1371REV_ES1373_8  0x08
+
+#define ES1371_MAGIC  ((PCI_VENDOR_ID_ENSONIQ<<16)|PCI_DEVICE_ID_ENSONIQ_ES1371)
+
+#define ES1371_EXTENT             0x40
+#define JOY_EXTENT                8
+
+#define ES1371_REG_CONTROL        0x00
+#define ES1371_REG_STATUS         0x04 /* on the 5880 it is control/status */
+#define ES1371_REG_UART_DATA      0x08
+#define ES1371_REG_UART_STATUS    0x09
+#define ES1371_REG_UART_CONTROL   0x09
+#define ES1371_REG_UART_TEST      0x0a
+#define ES1371_REG_MEMPAGE        0x0c
+#define ES1371_REG_SRCONV         0x10
+#define ES1371_REG_CODEC          0x14
+#define ES1371_REG_LEGACY         0x18
+#define ES1371_REG_SERIAL_CONTROL 0x20
+#define ES1371_REG_DAC1_SCOUNT    0x24
+#define ES1371_REG_DAC2_SCOUNT    0x28
+#define ES1371_REG_ADC_SCOUNT     0x2c
+
+#define ES1371_REG_DAC1_FRAMEADR  0xc30
+#define ES1371_REG_DAC1_FRAMECNT  0xc34
+#define ES1371_REG_DAC2_FRAMEADR  0xc38
+#define ES1371_REG_DAC2_FRAMECNT  0xc3c
+#define ES1371_REG_ADC_FRAMEADR   0xd30
+#define ES1371_REG_ADC_FRAMECNT   0xd34
+
+#define ES1371_FMT_U8_MONO     0
+#define ES1371_FMT_U8_STEREO   1
+#define ES1371_FMT_S16_MONO    2
+#define ES1371_FMT_S16_STEREO  3
+#define ES1371_FMT_STEREO      1
+#define ES1371_FMT_S16         2
+#define ES1371_FMT_MASK        3
+
+static const unsigned sample_size[] = { 1, 2, 2, 4 };
+static const unsigned sample_shift[] = { 0, 1, 1, 2 };
+
+#define CTRL_RECEN_B    0x08000000  /* 1 = don't mix analog in to digital out */
+#define CTRL_SPDIFEN_B  0x04000000
+#define CTRL_JOY_SHIFT  24
+#define CTRL_JOY_MASK   3
+#define CTRL_JOY_200    0x00000000  /* joystick base address */
+#define CTRL_JOY_208    0x01000000
+#define CTRL_JOY_210    0x02000000
+#define CTRL_JOY_218    0x03000000
+#define CTRL_GPIO_IN0   0x00100000  /* general purpose inputs/outputs */
+#define CTRL_GPIO_IN1   0x00200000
+#define CTRL_GPIO_IN2   0x00400000
+#define CTRL_GPIO_IN3   0x00800000
+#define CTRL_GPIO_OUT0  0x00010000
+#define CTRL_GPIO_OUT1  0x00020000
+#define CTRL_GPIO_OUT2  0x00040000
+#define CTRL_GPIO_OUT3  0x00080000
+#define CTRL_MSFMTSEL   0x00008000  /* MPEG serial data fmt: 0 = Sony, 1 = I2S */
+#define CTRL_SYNCRES    0x00004000  /* AC97 warm reset */
+#define CTRL_ADCSTOP    0x00002000  /* stop ADC transfers */
+#define CTRL_PWR_INTRM  0x00001000  /* 1 = power level ints enabled */
+#define CTRL_M_CB       0x00000800  /* recording source: 0 = ADC, 1 = MPEG */
+#define CTRL_CCB_INTRM  0x00000400  /* 1 = CCB "voice" ints enabled */
+#define CTRL_PDLEV0     0x00000000  /* power down level */
+#define CTRL_PDLEV1     0x00000100
+#define CTRL_PDLEV2     0x00000200
+#define CTRL_PDLEV3     0x00000300
+#define CTRL_BREQ       0x00000080  /* 1 = test mode (internal mem test) */
+#define CTRL_DAC1_EN    0x00000040  /* enable DAC1 */
+#define CTRL_DAC2_EN    0x00000020  /* enable DAC2 */
+#define CTRL_ADC_EN     0x00000010  /* enable ADC */
+#define CTRL_UART_EN    0x00000008  /* enable MIDI uart */
+#define CTRL_JYSTK_EN   0x00000004  /* enable Joystick port */
+#define CTRL_XTALCLKDIS 0x00000002  /* 1 = disable crystal clock input */
+#define CTRL_PCICLKDIS  0x00000001  /* 1 = disable PCI clock distribution */
+
+
+#define STAT_INTR       0x80000000  /* wired or of all interrupt bits */
+#define CSTAT_5880_AC97_RST 0x20000000 /* CT5880 Reset bit */
+#define STAT_EN_SPDIF   0x00040000  /* enable S/PDIF circuitry */
+#define STAT_TS_SPDIF   0x00020000  /* test S/PDIF circuitry */
+#define STAT_TESTMODE   0x00010000  /* test ASIC */
+#define STAT_SYNC_ERR   0x00000100  /* 1 = codec sync error */
+#define STAT_VC         0x000000c0  /* CCB int source, 0=DAC1, 1=DAC2, 2=ADC, 3=undef */
+#define STAT_SH_VC      6
+#define STAT_MPWR       0x00000020  /* power level interrupt */
+#define STAT_MCCB       0x00000010  /* CCB int pending */
+#define STAT_UART       0x00000008  /* UART int pending */
+#define STAT_DAC1       0x00000004  /* DAC1 int pending */
+#define STAT_DAC2       0x00000002  /* DAC2 int pending */
+#define STAT_ADC        0x00000001  /* ADC int pending */
+
+#define USTAT_RXINT     0x80        /* UART rx int pending */
+#define USTAT_TXINT     0x04        /* UART tx int pending */
+#define USTAT_TXRDY     0x02        /* UART tx ready */
+#define USTAT_RXRDY     0x01        /* UART rx ready */
+
+#define UCTRL_RXINTEN   0x80        /* 1 = enable RX ints */
+#define UCTRL_TXINTEN   0x60        /* TX int enable field mask */
+#define UCTRL_ENA_TXINT 0x20        /* enable TX int */
+#define UCTRL_CNTRL     0x03        /* control field */
+#define UCTRL_CNTRL_SWR 0x03        /* software reset command */
+
+/* sample rate converter */
+#define SRC_OKSTATE        1
+
+#define SRC_RAMADDR_MASK   0xfe000000
+#define SRC_RAMADDR_SHIFT  25
+#define SRC_DAC1FREEZE     (1UL << 21)
+#define SRC_DAC2FREEZE      (1UL << 20)
+#define SRC_ADCFREEZE      (1UL << 19)
+
+
+#define SRC_WE             0x01000000  /* read/write control for SRC RAM */
+#define SRC_BUSY           0x00800000  /* SRC busy */
+#define SRC_DIS            0x00400000  /* 1 = disable SRC */
+#define SRC_DDAC1          0x00200000  /* 1 = disable accum update for DAC1 */
+#define SRC_DDAC2          0x00100000  /* 1 = disable accum update for DAC2 */
+#define SRC_DADC           0x00080000  /* 1 = disable accum update for ADC2 */
+#define SRC_CTLMASK        0x00780000
+#define SRC_RAMDATA_MASK   0x0000ffff
+#define SRC_RAMDATA_SHIFT  0
+
+#define SRCREG_ADC      0x78
+#define SRCREG_DAC1     0x70
+#define SRCREG_DAC2     0x74
+#define SRCREG_VOL_ADC  0x6c
+#define SRCREG_VOL_DAC1 0x7c
+#define SRCREG_VOL_DAC2 0x7e
+
+#define SRCREG_TRUNC_N     0x00
+#define SRCREG_INT_REGS    0x01
+#define SRCREG_ACCUM_FRAC  0x02
+#define SRCREG_VFREQ_FRAC  0x03
+
+#define CODEC_PIRD        0x00800000  /* 0 = write AC97 register */
+#define CODEC_PIADD_MASK  0x007f0000
+#define CODEC_PIADD_SHIFT 16
+#define CODEC_PIDAT_MASK  0x0000ffff
+#define CODEC_PIDAT_SHIFT 0
+
+#define CODEC_RDY         0x80000000  /* AC97 read data valid */
+#define CODEC_WIP         0x40000000  /* AC97 write in progress */
+#define CODEC_PORD        0x00800000  /* 0 = write AC97 register */
+#define CODEC_POADD_MASK  0x007f0000
+#define CODEC_POADD_SHIFT 16
+#define CODEC_PODAT_MASK  0x0000ffff
+#define CODEC_PODAT_SHIFT 0
+
+
+#define LEGACY_JFAST      0x80000000  /* fast joystick timing */
+#define LEGACY_FIRQ       0x01000000  /* force IRQ */
+
+#define SCTRL_DACTEST     0x00400000  /* 1 = DAC test, test vector generation purposes */
+#define SCTRL_P2ENDINC    0x00380000  /*  */
+#define SCTRL_SH_P2ENDINC 19
+#define SCTRL_P2STINC     0x00070000  /*  */
+#define SCTRL_SH_P2STINC  16
+#define SCTRL_R1LOOPSEL   0x00008000  /* 0 = loop mode */
+#define SCTRL_P2LOOPSEL   0x00004000  /* 0 = loop mode */
+#define SCTRL_P1LOOPSEL   0x00002000  /* 0 = loop mode */
+#define SCTRL_P2PAUSE     0x00001000  /* 1 = pause mode */
+#define SCTRL_P1PAUSE     0x00000800  /* 1 = pause mode */
+#define SCTRL_R1INTEN     0x00000400  /* enable interrupt */
+#define SCTRL_P2INTEN     0x00000200  /* enable interrupt */
+#define SCTRL_P1INTEN     0x00000100  /* enable interrupt */
+#define SCTRL_P1SCTRLD    0x00000080  /* reload sample count register for DAC1 */
+#define SCTRL_P2DACSEN    0x00000040  /* 1 = DAC2 play back last sample when disabled */
+#define SCTRL_R1SEB       0x00000020  /* 1 = 16bit */
+#define SCTRL_R1SMB       0x00000010  /* 1 = stereo */
+#define SCTRL_R1FMT       0x00000030  /* format mask */
+#define SCTRL_SH_R1FMT    4
+#define SCTRL_P2SEB       0x00000008  /* 1 = 16bit */
+#define SCTRL_P2SMB       0x00000004  /* 1 = stereo */
+#define SCTRL_P2FMT       0x0000000c  /* format mask */
+#define SCTRL_SH_P2FMT    2
+#define SCTRL_P1SEB       0x00000002  /* 1 = 16bit */
+#define SCTRL_P1SMB       0x00000001  /* 1 = stereo */
+#define SCTRL_P1FMT       0x00000003  /* format mask */
+#define SCTRL_SH_P1FMT    0
+
+
+/* misc stuff */
+#define POLL_COUNT   0x1000
+#define FMODE_DAC         4           /* slight misuse of mode_t */
+
+/* MIDI buffer sizes */
+
+#define MIDIINBUF  256
+#define MIDIOUTBUF 256
+
+#define FMODE_MIDI_SHIFT 3
+#define FMODE_MIDI_READ  (FMODE_READ << FMODE_MIDI_SHIFT)
+#define FMODE_MIDI_WRITE (FMODE_WRITE << FMODE_MIDI_SHIFT)
+
+#define ES1371_MODULE_NAME "es1371"
+#define PFX ES1371_MODULE_NAME ": "
+
+/* --------------------------------------------------------------------- */
+
+struct es1371_state {
+        /* magic */
+        unsigned int magic;
+
+        /* list of es1371 devices */
+        struct list_head devs;
+
+        /* the corresponding pci_dev structure */
+        struct pci_dev *dev;
+
+        /* soundcore stuff */
+        int dev_audio;
+        int dev_dac;
+        int dev_midi;
+        
+        /* hardware resources */
+        unsigned long io; /* long for SPARC */
+        unsigned int irq;
+
+        /* PCI ID's */
+        u16 vendor;
+        u16 device;
+        u8 rev; /* the chip revision */
+
+        /* options */
+        int spdif_volume; /* S/PDIF output is enabled if != -1 */
+
+#ifdef ES1371_DEBUG
+        /* debug /proc entry */
+        struct proc_dir_entry *ps;
+#endif /* ES1371_DEBUG */
+
+        struct ac97_codec *codec;
+
+        /* wave stuff */
+        unsigned ctrl;
+        unsigned sctrl;
+        unsigned dac1rate, dac2rate, adcrate;
+
+        spinlock_t lock;
+        struct semaphore open_sem;
+        mode_t open_mode;
+        wait_queue_head_t open_wait;
+
+        struct dmabuf {
+                void *rawbuf;
+                dma_addr_t dmaaddr;
+                unsigned buforder;
+                unsigned numfrag;
+                unsigned fragshift;
+                unsigned hwptr, swptr;
+                unsigned total_bytes;
+                int count;
+                unsigned error; /* over/underrun */
+                wait_queue_head_t wait;
+                /* redundant, but makes calculations easier */
+                unsigned fragsize;
+                unsigned dmasize;
+                unsigned fragsamples;
+                /* OSS stuff */
+                unsigned mapped:1;
+                unsigned ready:1;
+                unsigned endcleared:1;
+                unsigned enabled:1;
+                unsigned ossfragshift;
+                int ossmaxfrags;
+                unsigned subdivision;
+        } dma_dac1, dma_dac2, dma_adc;
+
+        /* midi stuff */
+        struct {
+                unsigned ird, iwr, icnt;
+                unsigned ord, owr, ocnt;
+                wait_queue_head_t iwait;
+                wait_queue_head_t owait;
+                unsigned char ibuf[MIDIINBUF];
+                unsigned char obuf[MIDIOUTBUF];
+        } midi;
+
+        struct gameport *gameport;
+        struct semaphore sem;
+};
+
+/* --------------------------------------------------------------------- */
+
+static LIST_HEAD(devs);
+
+/* --------------------------------------------------------------------- */
+
+static inline unsigned ld2(unsigned int x)
+{
+        unsigned r = 0;
+        
+        if (x >= 0x10000) {
+                x >>= 16;
+                r += 16;
+        }
+        if (x >= 0x100) {
+                x >>= 8;
+                r += 8;
+        }
+        if (x >= 0x10) {
+                x >>= 4;
+                r += 4;
+        }
+        if (x >= 4) {
+                x >>= 2;
+                r += 2;
+        }
+        if (x >= 2)
+                r++;
+        return r;
+}
+
+/* --------------------------------------------------------------------- */
+
+static unsigned wait_src_ready(struct es1371_state *s)
+{
+        unsigned int t, r;
+
+        for (t = 0; t < POLL_COUNT; t++) {
+                if (!((r = inl(s->io + ES1371_REG_SRCONV)) & SRC_BUSY))
+                        return r;
+                udelay(1);
+        }
+        printk(KERN_DEBUG PFX "sample rate converter timeout r = 0x%08x\n", r);
+        return r;
+}
+
+static unsigned src_read(struct es1371_state *s, unsigned reg)
+{
+        unsigned int temp,i,orig;
+
+        /* wait for ready */
+        temp = wait_src_ready (s);
+
+        /* we can only access the SRC at certain times, make sure
+           we're allowed to before we read */
+           
+        orig = temp;
+        /* expose the SRC state bits */
+        outl ( (temp & SRC_CTLMASK) | (reg << SRC_RAMADDR_SHIFT) | 0x10000UL,
+               s->io + ES1371_REG_SRCONV);
+
+        /* now, wait for busy and the correct time to read */
+        temp = wait_src_ready (s);
+
+        if ( (temp & 0x00870000UL ) != ( SRC_OKSTATE << 16 )){
+                /* wait for the right state */
+                for (i=0; i<POLL_COUNT; i++){
+                        temp = inl (s->io + ES1371_REG_SRCONV);
+                        if ( (temp & 0x00870000UL ) == ( SRC_OKSTATE << 16 ))
+                                break;
+                }
+        }
+
+        /* hide the state bits */
+        outl ((orig & SRC_CTLMASK) | (reg << SRC_RAMADDR_SHIFT), s->io + ES1371_REG_SRCONV);
+        return temp;
+                        
+                
+}
+
+static void src_write(struct es1371_state *s, unsigned reg, unsigned data)
+{
+      
+        unsigned int r;
+
+        r = wait_src_ready(s) & (SRC_DIS | SRC_DDAC1 | SRC_DDAC2 | SRC_DADC);
+        r |= (reg << SRC_RAMADDR_SHIFT) & SRC_RAMADDR_MASK;
+        r |= (data << SRC_RAMDATA_SHIFT) & SRC_RAMDATA_MASK;
+        outl(r | SRC_WE, s->io + ES1371_REG_SRCONV);
+
+}
+
+/* --------------------------------------------------------------------- */
+
+/* most of the following here is black magic */
+static void set_adc_rate(struct es1371_state *s, unsigned rate)
+{
+        unsigned long flags;
+        unsigned int n, truncm, freq;
+
+        if (rate > 48000)
+                rate = 48000;
+        if (rate < 4000)
+                rate = 4000;
+        n = rate / 3000;
+        if ((1 << n) & ((1 << 15) | (1 << 13) | (1 << 11) | (1 << 9)))
+                n--;
+        truncm = (21 * n - 1) | 1;
+        freq = ((48000UL << 15) / rate) * n;
+        s->adcrate = (48000UL << 15) / (freq / n);
+        spin_lock_irqsave(&s->lock, flags);
+        if (rate >= 24000) {
+                if (truncm > 239)
+                        truncm = 239;
+                src_write(s, SRCREG_ADC+SRCREG_TRUNC_N, 
+                          (((239 - truncm) >> 1) << 9) | (n << 4));
+        } else {
+                if (truncm > 119)
+                        truncm = 119;
+                src_write(s, SRCREG_ADC+SRCREG_TRUNC_N, 
+                          0x8000 | (((119 - truncm) >> 1) << 9) | (n << 4));
+        }               
+        src_write(s, SRCREG_ADC+SRCREG_INT_REGS, 
+                  (src_read(s, SRCREG_ADC+SRCREG_INT_REGS) & 0x00ff) |
+                  ((freq >> 5) & 0xfc00));
+        src_write(s, SRCREG_ADC+SRCREG_VFREQ_FRAC, freq & 0x7fff);
+        src_write(s, SRCREG_VOL_ADC, n << 8);
+        src_write(s, SRCREG_VOL_ADC+1, n << 8);
+        spin_unlock_irqrestore(&s->lock, flags);
+}
+
+
+static void set_dac1_rate(struct es1371_state *s, unsigned rate)
+{
+        unsigned long flags;
+        unsigned int freq, r;
+
+        if (rate > 48000)
+                rate = 48000;
+        if (rate < 4000)
+                rate = 4000;
+        freq = ((rate << 15) + 1500) / 3000;
+        s->dac1rate = (freq * 3000 + 16384) >> 15;
+        spin_lock_irqsave(&s->lock, flags);
+        r = (wait_src_ready(s) & (SRC_DIS | SRC_DDAC2 | SRC_DADC)) | SRC_DDAC1;
+        outl(r, s->io + ES1371_REG_SRCONV);
+        src_write(s, SRCREG_DAC1+SRCREG_INT_REGS, 
+                  (src_read(s, SRCREG_DAC1+SRCREG_INT_REGS) & 0x00ff) |
+                  ((freq >> 5) & 0xfc00));
+        src_write(s, SRCREG_DAC1+SRCREG_VFREQ_FRAC, freq & 0x7fff);
+        r = (wait_src_ready(s) & (SRC_DIS | SRC_DDAC2 | SRC_DADC));
+        outl(r, s->io + ES1371_REG_SRCONV);
+        spin_unlock_irqrestore(&s->lock, flags);
+}
+
+static void set_dac2_rate(struct es1371_state *s, unsigned rate)
+{
+        unsigned long flags;
+        unsigned int freq, r;
+
+        if (rate > 48000)
+                rate = 48000;
+        if (rate < 4000)
+                rate = 4000;
+        freq = ((rate << 15) + 1500) / 3000;
+        s->dac2rate = (freq * 3000 + 16384) >> 15;
+        spin_lock_irqsave(&s->lock, flags);
+        r = (wait_src_ready(s) & (SRC_DIS | SRC_DDAC1 | SRC_DADC)) | SRC_DDAC2;
+        outl(r, s->io + ES1371_REG_SRCONV);
+        src_write(s, SRCREG_DAC2+SRCREG_INT_REGS, 
+                  (src_read(s, SRCREG_DAC2+SRCREG_INT_REGS) & 0x00ff) |
+                  ((freq >> 5) & 0xfc00));
+        src_write(s, SRCREG_DAC2+SRCREG_VFREQ_FRAC, freq & 0x7fff);
+        r = (wait_src_ready(s) & (SRC_DIS | SRC_DDAC1 | SRC_DADC));
+        outl(r, s->io + ES1371_REG_SRCONV);
+        spin_unlock_irqrestore(&s->lock, flags);
+}
+
+/* --------------------------------------------------------------------- */
+
+static void __devinit src_init(struct es1371_state *s)
+{
+        unsigned int i;
+
+        /* before we enable or disable the SRC we need
+           to wait for it to become ready */
+        wait_src_ready(s);
+
+        outl(SRC_DIS, s->io + ES1371_REG_SRCONV);
+
+        for (i = 0; i < 0x80; i++)
+                src_write(s, i, 0);
+
+        src_write(s, SRCREG_DAC1+SRCREG_TRUNC_N, 16 << 4);
+        src_write(s, SRCREG_DAC1+SRCREG_INT_REGS, 16 << 10);
+        src_write(s, SRCREG_DAC2+SRCREG_TRUNC_N, 16 << 4);
+        src_write(s, SRCREG_DAC2+SRCREG_INT_REGS, 16 << 10);
+        src_write(s, SRCREG_VOL_ADC, 1 << 12);
+        src_write(s, SRCREG_VOL_ADC+1, 1 << 12);
+        src_write(s, SRCREG_VOL_DAC1, 1 << 12);
+        src_write(s, SRCREG_VOL_DAC1+1, 1 << 12);
+        src_write(s, SRCREG_VOL_DAC2, 1 << 12);
+        src_write(s, SRCREG_VOL_DAC2+1, 1 << 12);
+        set_adc_rate(s, 22050);
+        set_dac1_rate(s, 22050);
+        set_dac2_rate(s, 22050);
+
+        /* WARNING:
+         * enabling the sample rate converter without properly programming
+         * its parameters causes the chip to lock up (the SRC busy bit will
+         * be stuck high, and I've found no way to rectify this other than
+         * power cycle)
+         */
+        wait_src_ready(s);
+        outl(0, s->io+ES1371_REG_SRCONV);
+}
+
+/* --------------------------------------------------------------------- */
+
+static void wrcodec(struct ac97_codec *codec, u8 addr, u16 data)
+{
+        struct es1371_state *s = (struct es1371_state *)codec->private_data;
+        unsigned long flags;
+        unsigned t, x;
+        
+        spin_lock_irqsave(&s->lock, flags);
+        for (t = 0; t < POLL_COUNT; t++)
+                if (!(inl(s->io+ES1371_REG_CODEC) & CODEC_WIP))
+                        break;
+
+        /* save the current state for later */
+        x = wait_src_ready(s);
+
+        /* enable SRC state data in SRC mux */
+        outl((x & (SRC_DIS | SRC_DDAC1 | SRC_DDAC2 | SRC_DADC)) | 0x00010000,
+             s->io+ES1371_REG_SRCONV);
+
+        /* wait for not busy (state 0) first to avoid
+           transition states */
+        for (t=0; t<POLL_COUNT; t++){
+                if((inl(s->io+ES1371_REG_SRCONV) & 0x00870000) ==0 )
+                    break;
+                udelay(1);
+        }
+        
+        /* wait for a SAFE time to write addr/data and then do it, dammit */
+        for (t=0; t<POLL_COUNT; t++){
+                if((inl(s->io+ES1371_REG_SRCONV) & 0x00870000) ==0x00010000)
+                    break;
+                udelay(1);
+        }
+
+        outl(((addr << CODEC_POADD_SHIFT) & CODEC_POADD_MASK) |
+             ((data << CODEC_PODAT_SHIFT) & CODEC_PODAT_MASK), s->io+ES1371_REG_CODEC);
+
+        /* restore SRC reg */
+        wait_src_ready(s);
+        outl(x, s->io+ES1371_REG_SRCONV);
+        spin_unlock_irqrestore(&s->lock, flags);
+}
+
+static u16 rdcodec(struct ac97_codec *codec, u8 addr)
+{
+        struct es1371_state *s = (struct es1371_state *)codec->private_data;
+        unsigned long flags;
+        unsigned t, x;
+
+        spin_lock_irqsave(&s->lock, flags);
+        
+        /* wait for WIP to go away */
+        for (t = 0; t < 0x1000; t++)
+                if (!(inl(s->io+ES1371_REG_CODEC) & CODEC_WIP))
+                        break;
+
+        /* save the current state for later */
+        x = (wait_src_ready(s) & (SRC_DIS | SRC_DDAC1 | SRC_DDAC2 | SRC_DADC));
+
+        /* enable SRC state data in SRC mux */
+        outl( x | 0x00010000,
+              s->io+ES1371_REG_SRCONV);
+
+        /* wait for not busy (state 0) first to avoid
+           transition states */
+        for (t=0; t<POLL_COUNT; t++){
+                if((inl(s->io+ES1371_REG_SRCONV) & 0x00870000) ==0 )
+                    break;
+                udelay(1);
+        }
+        
+        /* wait for a SAFE time to write addr/data and then do it, dammit */
+        for (t=0; t<POLL_COUNT; t++){
+                if((inl(s->io+ES1371_REG_SRCONV) & 0x00870000) ==0x00010000)
+                    break;
+                udelay(1);
+        }
+
+        outl(((addr << CODEC_POADD_SHIFT) & CODEC_POADD_MASK) | CODEC_PORD, s->io+ES1371_REG_CODEC);
+        /* restore SRC reg */
+        wait_src_ready(s);
+        outl(x, s->io+ES1371_REG_SRCONV);
+
+        /* wait for WIP again */
+        for (t = 0; t < 0x1000; t++)
+                if (!(inl(s->io+ES1371_REG_CODEC) & CODEC_WIP))
+                        break;
+        
+        /* now wait for the stinkin' data (RDY) */
+        for (t = 0; t < POLL_COUNT; t++)
+                if ((x = inl(s->io+ES1371_REG_CODEC)) & CODEC_RDY)
+                        break;
+        
+        spin_unlock_irqrestore(&s->lock, flags);
+        return ((x & CODEC_PIDAT_MASK) >> CODEC_PIDAT_SHIFT);
+}
+
+/* --------------------------------------------------------------------- */
+
+static inline void stop_adc(struct es1371_state *s)
+{
+        unsigned long flags;
+
+        spin_lock_irqsave(&s->lock, flags);
+        s->ctrl &= ~CTRL_ADC_EN;
+        outl(s->ctrl, s->io+ES1371_REG_CONTROL);
+        spin_unlock_irqrestore(&s->lock, flags);
+}       
+
+static inline void stop_dac1(struct es1371_state *s)
+{
+        unsigned long flags;
+
+        spin_lock_irqsave(&s->lock, flags);
+        s->ctrl &= ~CTRL_DAC1_EN;
+        outl(s->ctrl, s->io+ES1371_REG_CONTROL);
+        spin_unlock_irqrestore(&s->lock, flags);
+}       
+
+static inline void stop_dac2(struct es1371_state *s)
+{
+        unsigned long flags;
+
+        spin_lock_irqsave(&s->lock, flags);
+        s->ctrl &= ~CTRL_DAC2_EN;
+        outl(s->ctrl, s->io+ES1371_REG_CONTROL);
+        spin_unlock_irqrestore(&s->lock, flags);
+}       
+
+static void start_dac1(struct es1371_state *s)
+{
+        unsigned long flags;
+        unsigned fragremain, fshift;
+
+        spin_lock_irqsave(&s->lock, flags);
+        if (!(s->ctrl & CTRL_DAC1_EN) && (s->dma_dac1.mapped || s->dma_dac1.count > 0)
+            && s->dma_dac1.ready) {
+                s->ctrl |= CTRL_DAC1_EN;
+                s->sctrl = (s->sctrl & ~(SCTRL_P1LOOPSEL | SCTRL_P1PAUSE | SCTRL_P1SCTRLD)) | SCTRL_P1INTEN;
+                outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
+                fragremain = ((- s->dma_dac1.hwptr) & (s->dma_dac1.fragsize-1));
+                fshift = sample_shift[(s->sctrl & SCTRL_P1FMT) >> SCTRL_SH_P1FMT];
+                if (fragremain < 2*fshift)
+                        fragremain = s->dma_dac1.fragsize;
+                outl((fragremain >> fshift) - 1, s->io+ES1371_REG_DAC1_SCOUNT);
+                outl(s->ctrl, s->io+ES1371_REG_CONTROL);
+                outl((s->dma_dac1.fragsize >> fshift) - 1, s->io+ES1371_REG_DAC1_SCOUNT);
+        }
+        spin_unlock_irqrestore(&s->lock, flags);
+}       
+
+static void start_dac2(struct es1371_state *s)
+{
+        unsigned long flags;
+        unsigned fragremain, fshift;
+
+        spin_lock_irqsave(&s->lock, flags);
+        if (!(s->ctrl & CTRL_DAC2_EN) && (s->dma_dac2.mapped || s->dma_dac2.count > 0)
+            && s->dma_dac2.ready) {
+                s->ctrl |= CTRL_DAC2_EN;
+                s->sctrl = (s->sctrl & ~(SCTRL_P2LOOPSEL | SCTRL_P2PAUSE | SCTRL_P2DACSEN | 
+                                         SCTRL_P2ENDINC | SCTRL_P2STINC)) | SCTRL_P2INTEN |
+                        (((s->sctrl & SCTRL_P2FMT) ? 2 : 1) << SCTRL_SH_P2ENDINC) | 
+                        (0 << SCTRL_SH_P2STINC);
+                outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
+                fragremain = ((- s->dma_dac2.hwptr) & (s->dma_dac2.fragsize-1));
+                fshift = sample_shift[(s->sctrl & SCTRL_P2FMT) >> SCTRL_SH_P2FMT];
+                if (fragremain < 2*fshift)
+                        fragremain = s->dma_dac2.fragsize;
+                outl((fragremain >> fshift) - 1, s->io+ES1371_REG_DAC2_SCOUNT);
+                outl(s->ctrl, s->io+ES1371_REG_CONTROL);
+                outl((s->dma_dac2.fragsize >> fshift) - 1, s->io+ES1371_REG_DAC2_SCOUNT);
+        }
+        spin_unlock_irqrestore(&s->lock, flags);
+}       
+
+static void start_adc(struct es1371_state *s)
+{
+        unsigned long flags;
+        unsigned fragremain, fshift;
+
+        spin_lock_irqsave(&s->lock, flags);
+        if (!(s->ctrl & CTRL_ADC_EN) && (s->dma_adc.mapped || s->dma_adc.count < (signed)(s->dma_adc.dmasize - 2*s->dma_adc.fragsize))
+            && s->dma_adc.ready) {
+                s->ctrl |= CTRL_ADC_EN;
+                s->sctrl = (s->sctrl & ~SCTRL_R1LOOPSEL) | SCTRL_R1INTEN;
+                outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
+                fragremain = ((- s->dma_adc.hwptr) & (s->dma_adc.fragsize-1));
+                fshift = sample_shift[(s->sctrl & SCTRL_R1FMT) >> SCTRL_SH_R1FMT];
+                if (fragremain < 2*fshift)
+                        fragremain = s->dma_adc.fragsize;
+                outl((fragremain >> fshift) - 1, s->io+ES1371_REG_ADC_SCOUNT);
+                outl(s->ctrl, s->io+ES1371_REG_CONTROL);
+                outl((s->dma_adc.fragsize >> fshift) - 1, s->io+ES1371_REG_ADC_SCOUNT);
+        }
+        spin_unlock_irqrestore(&s->lock, flags);
+}       
+
+/* --------------------------------------------------------------------- */
+
+#define DMABUF_DEFAULTORDER (17-PAGE_SHIFT)
+#define DMABUF_MINORDER 1
+
+
+static inline void dealloc_dmabuf(struct es1371_state *s, struct dmabuf *db)
+{
+        struct page *page, *pend;
+
+        if (db->rawbuf) {
+                /* undo marking the pages as reserved */
+                pend = virt_to_page(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
+                for (page = virt_to_page(db->rawbuf); page <= pend; page++)
+                        ClearPageReserved(page);
+                pci_free_consistent(s->dev, PAGE_SIZE << db->buforder, db->rawbuf, db->dmaaddr);
+        }
+        db->rawbuf = NULL;
+        db->mapped = db->ready = 0;
+}
+
+static int prog_dmabuf(struct es1371_state *s, struct dmabuf *db, unsigned rate, unsigned fmt, unsigned reg)
+{
+        int order;
+        unsigned bytepersec;
+        unsigned bufs;
+        struct page *page, *pend;
+
+        db->hwptr = db->swptr = db->total_bytes = db->count = db->error = db->endcleared = 0;
+        if (!db->rawbuf) {
+                db->ready = db->mapped = 0;
+                for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--)
+                        if ((db->rawbuf = pci_alloc_consistent(s->dev, PAGE_SIZE << order, &db->dmaaddr)))
+                                break;
+                if (!db->rawbuf)
+                        return -ENOMEM;
+                db->buforder = order;
+                /* now mark the pages as reserved; otherwise remap_pfn_range doesn't do what we want */
+                pend = virt_to_page(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
+                for (page = virt_to_page(db->rawbuf); page <= pend; page++)
+                        SetPageReserved(page);
+        }
+        fmt &= ES1371_FMT_MASK;
+        bytepersec = rate << sample_shift[fmt];
+        bufs = PAGE_SIZE << db->buforder;
+        if (db->ossfragshift) {
+                if ((1000 << db->ossfragshift) < bytepersec)
+                        db->fragshift = ld2(bytepersec/1000);
+                else
+                        db->fragshift = db->ossfragshift;
+        } else {
+                db->fragshift = ld2(bytepersec/100/(db->subdivision ? db->subdivision : 1));
+                if (db->fragshift < 3)
+                        db->fragshift = 3;
+        }
+        db->numfrag = bufs >> db->fragshift;
+        while (db->numfrag < 4 && db->fragshift > 3) {
+                db->fragshift--;
+                db->numfrag = bufs >> db->fragshift;
+        }
+        db->fragsize = 1 << db->fragshift;
+        if (db->ossmaxfrags >= 4 && db->ossmaxfrags < db->numfrag)
+                db->numfrag = db->ossmaxfrags;
+        db->fragsamples = db->fragsize >> sample_shift[fmt];
+        db->dmasize = db->numfrag << db->fragshift;
+        memset(db->rawbuf, (fmt & ES1371_FMT_S16) ? 0 : 0x80, db->dmasize);
+        outl((reg >> 8) & 15, s->io+ES1371_REG_MEMPAGE);
+        outl(db->dmaaddr, s->io+(reg & 0xff));
+        outl((db->dmasize >> 2)-1, s->io+((reg + 4) & 0xff));
+        db->enabled = 1;
+        db->ready = 1;
+        return 0;
+}
+
+static inline int prog_dmabuf_adc(struct es1371_state *s)
+{
+        stop_adc(s);
+        return prog_dmabuf(s, &s->dma_adc, s->adcrate, (s->sctrl >> SCTRL_SH_R1FMT) & ES1371_FMT_MASK, 
+                           ES1371_REG_ADC_FRAMEADR);
+}
+
+static inline int prog_dmabuf_dac2(struct es1371_state *s)
+{
+        stop_dac2(s);
+        return prog_dmabuf(s, &s->dma_dac2, s->dac2rate, (s->sctrl >> SCTRL_SH_P2FMT) & ES1371_FMT_MASK, 
+                           ES1371_REG_DAC2_FRAMEADR);
+}
+
+static inline int prog_dmabuf_dac1(struct es1371_state *s)
+{
+        stop_dac1(s);
+        return prog_dmabuf(s, &s->dma_dac1, s->dac1rate, (s->sctrl >> SCTRL_SH_P1FMT) & ES1371_FMT_MASK,
+                           ES1371_REG_DAC1_FRAMEADR);
+}
+
+static inline unsigned get_hwptr(struct es1371_state *s, struct dmabuf *db, unsigned reg)
+{
+        unsigned hwptr, diff;
+
+        outl((reg >> 8) & 15, s->io+ES1371_REG_MEMPAGE);
+        hwptr = (inl(s->io+(reg & 0xff)) >> 14) & 0x3fffc;
+        diff = (db->dmasize + hwptr - db->hwptr) % db->dmasize;
+        db->hwptr = hwptr;
+        return diff;
+}
+
+static inline void clear_advance(void *buf, unsigned bsize, unsigned bptr, unsigned len, unsigned char c)
+{
+        if (bptr + len > bsize) {
+                unsigned x = bsize - bptr;
+                memset(((char *)buf) + bptr, c, x);
+                bptr = 0;
+                len -= x;
+        }
+        memset(((char *)buf) + bptr, c, len);
+}
+
+/* call with spinlock held! */
+static void es1371_update_ptr(struct es1371_state *s)
+{
+        int diff;
+
+        /* update ADC pointer */
+        if (s->ctrl & CTRL_ADC_EN) {
+                diff = get_hwptr(s, &s->dma_adc, ES1371_REG_ADC_FRAMECNT);
+                s->dma_adc.total_bytes += diff;
+                s->dma_adc.count += diff;
+                if (s->dma_adc.count >= (signed)s->dma_adc.fragsize) 
+                        wake_up(&s->dma_adc.wait);
+                if (!s->dma_adc.mapped) {
+                        if (s->dma_adc.count > (signed)(s->dma_adc.dmasize - ((3 * s->dma_adc.fragsize) >> 1))) {
+                                s->ctrl &= ~CTRL_ADC_EN;
+                                outl(s->ctrl, s->io+ES1371_REG_CONTROL);
+                                s->dma_adc.error++;
+                        }
+                }
+        }
+        /* update DAC1 pointer */
+        if (s->ctrl & CTRL_DAC1_EN) {
+                diff = get_hwptr(s, &s->dma_dac1, ES1371_REG_DAC1_FRAMECNT);
+                s->dma_dac1.total_bytes += diff;
+                if (s->dma_dac1.mapped) {
+                        s->dma_dac1.count += diff;
+                        if (s->dma_dac1.count >= (signed)s->dma_dac1.fragsize)
+                                wake_up(&s->dma_dac1.wait);
+                } else {
+                        s->dma_dac1.count -= diff;
+                        if (s->dma_dac1.count <= 0) {
+                                s->ctrl &= ~CTRL_DAC1_EN;
+                                outl(s->ctrl, s->io+ES1371_REG_CONTROL);
+                                s->dma_dac1.error++;
+                        } else if (s->dma_dac1.count <= (signed)s->dma_dac1.fragsize && !s->dma_dac1.endcleared) {
+                                clear_advance(s->dma_dac1.rawbuf, s->dma_dac1.dmasize, s->dma_dac1.swptr, 
+                                              s->dma_dac1.fragsize, (s->sctrl & SCTRL_P1SEB) ? 0 : 0x80);
+                                s->dma_dac1.endcleared = 1;
+                        }
+                        if (s->dma_dac1.count + (signed)s->dma_dac1.fragsize <= (signed)s->dma_dac1.dmasize)
+                                wake_up(&s->dma_dac1.wait);
+                }
+        }
+        /* update DAC2 pointer */
+        if (s->ctrl & CTRL_DAC2_EN) {
+                diff = get_hwptr(s, &s->dma_dac2, ES1371_REG_DAC2_FRAMECNT);
+                s->dma_dac2.total_bytes += diff;
+                if (s->dma_dac2.mapped) {
+                        s->dma_dac2.count += diff;
+                        if (s->dma_dac2.count >= (signed)s->dma_dac2.fragsize)
+                                wake_up(&s->dma_dac2.wait);
+                } else {
+                        s->dma_dac2.count -= diff;
+                        if (s->dma_dac2.count <= 0) {
+                                s->ctrl &= ~CTRL_DAC2_EN;
+                                outl(s->ctrl, s->io+ES1371_REG_CONTROL);
+                                s->dma_dac2.error++;
+                        } else if (s->dma_dac2.count <= (signed)s->dma_dac2.fragsize && !s->dma_dac2.endcleared) {
+                                clear_advance(s->dma_dac2.rawbuf, s->dma_dac2.dmasize, s->dma_dac2.swptr, 
+                                              s->dma_dac2.fragsize, (s->sctrl & SCTRL_P2SEB) ? 0 : 0x80);
+                                s->dma_dac2.endcleared = 1;
+                        }
+                        if (s->dma_dac2.count + (signed)s->dma_dac2.fragsize <= (signed)s->dma_dac2.dmasize)
+                                wake_up(&s->dma_dac2.wait);
+                }
+        }
+}
+
+/* hold spinlock for the following! */
+static void es1371_handle_midi(struct es1371_state *s)
+{
+        unsigned char ch;
+        int wake;
+
+        if (!(s->ctrl & CTRL_UART_EN))
+                return;
+        wake = 0;
+        while (inb(s->io+ES1371_REG_UART_STATUS) & USTAT_RXRDY) {
+                ch = inb(s->io+ES1371_REG_UART_DATA);
+                if (s->midi.icnt < MIDIINBUF) {
+                        s->midi.ibuf[s->midi.iwr] = ch;
+                        s->midi.iwr = (s->midi.iwr + 1) % MIDIINBUF;
+                        s->midi.icnt++;
+                }
+                wake = 1;
+        }
+        if (wake)
+                wake_up(&s->midi.iwait);
+        wake = 0;
+        while ((inb(s->io+ES1371_REG_UART_STATUS) & USTAT_TXRDY) && s->midi.ocnt > 0) {
+                outb(s->midi.obuf[s->midi.ord], s->io+ES1371_REG_UART_DATA);
+                s->midi.ord = (s->midi.ord + 1) % MIDIOUTBUF;
+                s->midi.ocnt--;
+                if (s->midi.ocnt < MIDIOUTBUF-16)
+                        wake = 1;
+        }
+        if (wake)
+                wake_up(&s->midi.owait);
+        outb((s->midi.ocnt > 0) ? UCTRL_RXINTEN | UCTRL_ENA_TXINT : UCTRL_RXINTEN, s->io+ES1371_REG_UART_CONTROL);
+}
+
+static irqreturn_t es1371_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+        struct es1371_state *s = (struct es1371_state *)dev_id;
+        unsigned int intsrc, sctl;
+        
+        /* fastpath out, to ease interrupt sharing */
+        intsrc = inl(s->io+ES1371_REG_STATUS);
+        if (!(intsrc & 0x80000000))
+                return IRQ_NONE;
+        spin_lock(&s->lock);
+        /* clear audio interrupts first */
+        sctl = s->sctrl;
+        if (intsrc & STAT_ADC)
+                sctl &= ~SCTRL_R1INTEN;
+        if (intsrc & STAT_DAC1)
+                sctl &= ~SCTRL_P1INTEN;
+        if (intsrc & STAT_DAC2)
+                sctl &= ~SCTRL_P2INTEN;
+        outl(sctl, s->io+ES1371_REG_SERIAL_CONTROL);
+        outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
+        es1371_update_ptr(s);
+        es1371_handle_midi(s);
+        spin_unlock(&s->lock);
+        return IRQ_HANDLED;
+}
+
+/* --------------------------------------------------------------------- */
+
+static const char invalid_magic[] = KERN_CRIT PFX "invalid magic value\n";
+
+#define VALIDATE_STATE(s)                         \
+({                                                \
+        if (!(s) || (s)->magic != ES1371_MAGIC) { \
+                printk(invalid_magic);            \
+                return -ENXIO;                    \
+        }                                         \
+})
+
+/* --------------------------------------------------------------------- */
+
+/* Conversion table for S/PDIF PCM volume emulation through the SRC */
+/* dB-linear table of DAC vol values; -0dB to -46.5dB with mute */
+static const unsigned short DACVolTable[101] =
+{
+        0x1000, 0x0f2a, 0x0e60, 0x0da0, 0x0cea, 0x0c3e, 0x0b9a, 0x0aff,
+        0x0a6d, 0x09e1, 0x095e, 0x08e1, 0x086a, 0x07fa, 0x078f, 0x072a,
+        0x06cb, 0x0670, 0x061a, 0x05c9, 0x057b, 0x0532, 0x04ed, 0x04ab,
+        0x046d, 0x0432, 0x03fa, 0x03c5, 0x0392, 0x0363, 0x0335, 0x030b,
+        0x02e2, 0x02bc, 0x0297, 0x0275, 0x0254, 0x0235, 0x0217, 0x01fb,
+        0x01e1, 0x01c8, 0x01b0, 0x0199, 0x0184, 0x0170, 0x015d, 0x014b,
+        0x0139, 0x0129, 0x0119, 0x010b, 0x00fd, 0x00f0, 0x00e3, 0x00d7,
+        0x00cc, 0x00c1, 0x00b7, 0x00ae, 0x00a5, 0x009c, 0x0094, 0x008c,
+        0x0085, 0x007e, 0x0077, 0x0071, 0x006b, 0x0066, 0x0060, 0x005b,
+        0x0057, 0x0052, 0x004e, 0x004a, 0x0046, 0x0042, 0x003f, 0x003c,
+        0x0038, 0x0036, 0x0033, 0x0030, 0x002e, 0x002b, 0x0029, 0x0027,
+        0x0025, 0x0023, 0x0021, 0x001f, 0x001e, 0x001c, 0x001b, 0x0019,
+        0x0018, 0x0017, 0x0016, 0x0014, 0x0000
+};
+
+/*
+ * when we are in S/PDIF mode, we want to disable any analog output so
+ * we filter the mixer ioctls 
+ */
+static int mixdev_ioctl(struct ac97_codec *codec, unsigned int cmd, unsigned long arg)
+{
+        struct es1371_state *s = (struct es1371_state *)codec->private_data;
+        int val;
+        unsigned long flags;
+        unsigned int left, right;
+
+        VALIDATE_STATE(s);
+        /* filter mixer ioctls to catch PCM and MASTER volume when in S/PDIF mode */
+        if (s->spdif_volume == -1)
+                return codec->mixer_ioctl(codec, cmd, arg);
+        switch (cmd) {
+        case SOUND_MIXER_WRITE_VOLUME:
+                return 0;
+
+        case SOUND_MIXER_WRITE_PCM:   /* use SRC for PCM volume */
+                if (get_user(val, (int __user *)arg))
+                        return -EFAULT;
+                right = ((val >> 8)  & 0xff);
+                left = (val  & 0xff);
+                if (right > 100)
+                        right = 100;
+                if (left > 100)
+                        left = 100;
+                s->spdif_volume = (right << 8) | left;
+                spin_lock_irqsave(&s->lock, flags);
+                src_write(s, SRCREG_VOL_DAC2, DACVolTable[100 - left]);
+                src_write(s, SRCREG_VOL_DAC2+1, DACVolTable[100 - right]);
+                spin_unlock_irqrestore(&s->lock, flags);
+                return 0;
+        
+        case SOUND_MIXER_READ_PCM:
+                return put_user(s->spdif_volume, (int __user *)arg);
+        }
+        return codec->mixer_ioctl(codec, cmd, arg);
+}
+
+/* --------------------------------------------------------------------- */
+
+/*
+ * AC97 Mixer Register to Connections mapping of the Concert 97 board
+ *
+ * AC97_MASTER_VOL_STEREO   Line Out
+ * AC97_MASTER_VOL_MONO     TAD Output
+ * AC97_PCBEEP_VOL          none
+ * AC97_PHONE_VOL           TAD Input (mono)
+ * AC97_MIC_VOL             MIC Input (mono)
+ * AC97_LINEIN_VOL          Line Input (stereo)
+ * AC97_CD_VOL              CD Input (stereo)
+ * AC97_VIDEO_VOL           none
+ * AC97_AUX_VOL             Aux Input (stereo)
+ * AC97_PCMOUT_VOL          Wave Output (stereo)
+ */
+
+static int es1371_open_mixdev(struct inode *inode, struct file *file)
+{
+        int minor = iminor(inode);
+        struct list_head *list;
+        struct es1371_state *s;
+
+        for (list = devs.next; ; list = list->next) {
+                if (list == &devs)
+                        return -ENODEV;
+                s = list_entry(list, struct es1371_state, devs);
+                if (s->codec->dev_mixer == minor)
+                        break;
+        }
+        VALIDATE_STATE(s);
+        file->private_data = s;
+        return nonseekable_open(inode, file);
+}
+
+static int es1371_release_mixdev(struct inode *inode, struct file *file)
+{
+        struct es1371_state *s = (struct es1371_state *)file->private_data;
+        
+        VALIDATE_STATE(s);
+        return 0;
+}
+
+static int es1371_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+{
+        struct es1371_state *s = (struct es1371_state *)file->private_data;
+        struct ac97_codec *codec = s->codec;
+
+        return mixdev_ioctl(codec, cmd, arg);
+}
+
+static /*const*/ struct file_operations es1371_mixer_fops = {
+        .owner          = THIS_MODULE,
+        .llseek         = no_llseek,
+        .ioctl          = es1371_ioctl_mixdev,
+        .open           = es1371_open_mixdev,
+        .release        = es1371_release_mixdev,
+};
+
+/* --------------------------------------------------------------------- */
+
+static int drain_dac1(struct es1371_state *s, int nonblock)
+{
+        DECLARE_WAITQUEUE(wait, current);
+        unsigned long flags;
+        int count, tmo;
+        
+        if (s->dma_dac1.mapped || !s->dma_dac1.ready)
+                return 0;
+        add_wait_queue(&s->dma_dac1.wait, &wait);
+        for (;;) {
+                __set_current_state(TASK_INTERRUPTIBLE);
+                spin_lock_irqsave(&s->lock, flags);
+                count = s->dma_dac1.count;
+                spin_unlock_irqrestore(&s->lock, flags);
+                if (count <= 0)
+                        break;
+                if (signal_pending(current))
+                        break;
+                if (nonblock) {
+                        remove_wait_queue(&s->dma_dac1.wait, &wait);
+                        set_current_state(TASK_RUNNING);
+                        return -EBUSY;
+                }
+                tmo = 3 * HZ * (count + s->dma_dac1.fragsize) / 2 / s->dac1rate;
+                tmo >>= sample_shift[(s->sctrl & SCTRL_P1FMT) >> SCTRL_SH_P1FMT];
+                if (!schedule_timeout(tmo + 1))
+                        DBG(printk(KERN_DEBUG PFX "dac1 dma timed out??\n");)
+        }
+        remove_wait_queue(&s->dma_dac1.wait, &wait);
+        set_current_state(TASK_RUNNING);
+        if (signal_pending(current))
+                return -ERESTARTSYS;
+        return 0;
+}
+
+static int drain_dac2(struct es1371_state *s, int nonblock)
+{
+        DECLARE_WAITQUEUE(wait, current);
+        unsigned long flags;
+        int count, tmo;
+
+        if (s->dma_dac2.mapped || !s->dma_dac2.ready)
+                return 0;
+        add_wait_queue(&s->dma_dac2.wait, &wait);
+        for (;;) {
+                __set_current_state(TASK_UNINTERRUPTIBLE);
+                spin_lock_irqsave(&s->lock, flags);
+                count = s->dma_dac2.count;
+                spin_unlock_irqrestore(&s->lock, flags);
+                if (count <= 0)
+                        break;
+                if (signal_pending(current))
+                        break;
+                if (nonblock) {
+                        remove_wait_queue(&s->dma_dac2.wait, &wait);
+                        set_current_state(TASK_RUNNING);
+                        return -EBUSY;
+                }
+                tmo = 3 * HZ * (count + s->dma_dac2.fragsize) / 2 / s->dac2rate;
+                tmo >>= sample_shift[(s->sctrl & SCTRL_P2FMT) >> SCTRL_SH_P2FMT];
+                if (!schedule_timeout(tmo + 1))
+                        DBG(printk(KERN_DEBUG PFX "dac2 dma timed out??\n");)
+        }
+        remove_wait_queue(&s->dma_dac2.wait, &wait);
+        set_current_state(TASK_RUNNING);
+        if (signal_pending(current))
+                return -ERESTARTSYS;
+        return 0;
+}
+
+/* --------------------------------------------------------------------- */
+
+static ssize_t es1371_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
+{
+        struct es1371_state *s = (struct es1371_state *)file->private_data;
+        DECLARE_WAITQUEUE(wait, current);
+        ssize_t ret = 0;
+        unsigned long flags;
+        unsigned swptr;
+        int cnt;
+
+        VALIDATE_STATE(s);
+        if (s->dma_adc.mapped)
+                return -ENXIO;
+        if (!access_ok(VERIFY_WRITE, buffer, count))
+                return -EFAULT;
+        down(&s->sem);
+        if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s)))
+                goto out2;
+        
+        add_wait_queue(&s->dma_adc.wait, &wait);
+        while (count > 0) {
+                spin_lock_irqsave(&s->lock, flags);
+                swptr = s->dma_adc.swptr;
+                cnt = s->dma_adc.dmasize-swptr;
+                if (s->dma_adc.count < cnt)
+                        cnt = s->dma_adc.count;
+                if (cnt <= 0)
+                        __set_current_state(TASK_INTERRUPTIBLE);
+                spin_unlock_irqrestore(&s->lock, flags);
+                if (cnt > count)
+                        cnt = count;
+                if (cnt <= 0) {
+                        if (s->dma_adc.enabled)
+                                start_adc(s);
+                        if (file->f_flags & O_NONBLOCK) {
+                                if (!ret)
+                                        ret = -EAGAIN;
+                                goto out;
+                        }
+                        up(&s->sem);
+                        schedule();
+                        if (signal_pending(current)) {
+                                if (!ret)
+                                        ret = -ERESTARTSYS;
+                                goto out2;
+                        }
+                        down(&s->sem);
+                        if (s->dma_adc.mapped)
+                        {
+                                ret = -ENXIO;
+                                goto out;
+                        }
+                        continue;
+                }
+                if (copy_to_user(buffer, s->dma_adc.rawbuf + swptr, cnt)) {
+                        if (!ret)
+                                ret = -EFAULT;
+                        goto out;
+                }
+                swptr = (swptr + cnt) % s->dma_adc.dmasize;
+                spin_lock_irqsave(&s->lock, flags);
+                s->dma_adc.swptr = swptr;
+                s->dma_adc.count -= cnt;
+                spin_unlock_irqrestore(&s->lock, flags);
+                count -= cnt;
+                buffer += cnt;
+                ret += cnt;
+                if (s->dma_adc.enabled)
+                        start_adc(s);
+        }
+out:
+        up(&s->sem);
+out2:
+        remove_wait_queue(&s->dma_adc.wait, &wait);
+        set_current_state(TASK_RUNNING);
+        return ret;
+}
+
+static ssize_t es1371_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
+{
+        struct es1371_state *s = (struct es1371_state *)file->private_data;
+        DECLARE_WAITQUEUE(wait, current);
+        ssize_t ret;
+        unsigned long flags;
+        unsigned swptr;
+        int cnt;
+
+        VALIDATE_STATE(s);
+        if (s->dma_dac2.mapped)
+                return -ENXIO;
+        if (!access_ok(VERIFY_READ, buffer, count))
+                return -EFAULT;
+        down(&s->sem);  
+        if (!s->dma_dac2.ready && (ret = prog_dmabuf_dac2(s)))
+                goto out3;
+        ret = 0;
+        add_wait_queue(&s->dma_dac2.wait, &wait);
+        while (count > 0) {
+                spin_lock_irqsave(&s->lock, flags);
+                if (s->dma_dac2.count < 0) {
+                        s->dma_dac2.count = 0;
+                        s->dma_dac2.swptr = s->dma_dac2.hwptr;
+                }
+                swptr = s->dma_dac2.swptr;
+                cnt = s->dma_dac2.dmasize-swptr;
+                if (s->dma_dac2.count + cnt > s->dma_dac2.dmasize)
+                        cnt = s->dma_dac2.dmasize - s->dma_dac2.count;
+                if (cnt <= 0)
+                        __set_current_state(TASK_INTERRUPTIBLE);
+                spin_unlock_irqrestore(&s->lock, flags);
+                if (cnt > count)
+                        cnt = count;
+                if (cnt <= 0) {
+                        if (s->dma_dac2.enabled)
+                                start_dac2(s);
+                        if (file->f_flags & O_NONBLOCK) {
+                                if (!ret)
+                                        ret = -EAGAIN;
+                                goto out;
+                        }       
+                        up(&s->sem);
+                        schedule();
+                        if (signal_pending(current)) {
+                                if (!ret)
+                                        ret = -ERESTARTSYS;
+                                goto out2;
+                        }
+                        down(&s->sem);
+                        if (s->dma_dac2.mapped)
+                        {
+                                ret = -ENXIO;
+                                goto out;
+                        }
+                        continue;
+                }
+                if (copy_from_user(s->dma_dac2.rawbuf + swptr, buffer, cnt)) {
+                        if (!ret)
+                                ret = -EFAULT;
+                        goto out;
+                }
+                swptr = (swptr + cnt) % s->dma_dac2.dmasize;
+                spin_lock_irqsave(&s->lock, flags);
+                s->dma_dac2.swptr = swptr;
+                s->dma_dac2.count += cnt;
+                s->dma_dac2.endcleared = 0;
+                spin_unlock_irqrestore(&s->lock, flags);
+                count -= cnt;
+                buffer += cnt;
+                ret += cnt;
+                if (s->dma_dac2.enabled)
+                        start_dac2(s);
+        }
+out:
+        up(&s->sem);
+out2:
+        remove_wait_queue(&s->dma_dac2.wait, &wait);
+out3:   
+        set_current_state(TASK_RUNNING);
+        return ret;
+}
+
+/* No kernel lock - we have our own spinlock */
+static unsigned int es1371_poll(struct file *file, struct poll_table_struct *wait)
+{
+        struct es1371_state *s = (struct es1371_state *)file->private_data;
+        unsigned long flags;
+        unsigned int mask = 0;
+
+        VALIDATE_STATE(s);
+        if (file->f_mode & FMODE_WRITE) {
+                if (!s->dma_dac2.ready && prog_dmabuf_dac2(s))
+                        return 0;
+                poll_wait(file, &s->dma_dac2.wait, wait);
+        }
+        if (file->f_mode & FMODE_READ) {
+                if (!s->dma_adc.ready && prog_dmabuf_adc(s))
+                        return 0;
+                poll_wait(file, &s->dma_adc.wait, wait);
+        }
+        spin_lock_irqsave(&s->lock, flags);
+        es1371_update_ptr(s);
+        if (file->f_mode & FMODE_READ) {
+                        if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
+                                mask |= POLLIN | POLLRDNORM;
+        }
+        if (file->f_mode & FMODE_WRITE) {
+                if (s->dma_dac2.mapped) {
+                        if (s->dma_dac2.count >= (signed)s->dma_dac2.fragsize) 
+                                mask |= POLLOUT | POLLWRNORM;
+                } else {
+                        if ((signed)s->dma_dac2.dmasize >= s->dma_dac2.count + (signed)s->dma_dac2.fragsize)
+                                mask |= POLLOUT | POLLWRNORM;
+                }
+        }
+        spin_unlock_irqrestore(&s->lock, flags);
+        return mask;
+}
+
+static int es1371_mmap(struct file *file, struct vm_area_struct *vma)
+{
+        struct es1371_state *s = (struct es1371_state *)file->private_data;
+        struct dmabuf *db;
+        int ret = 0;
+        unsigned long size;
+
+        VALIDATE_STATE(s);
+        lock_kernel();
+        down(&s->sem);
+        
+        if (vma->vm_flags & VM_WRITE) {
+                if ((ret = prog_dmabuf_dac2(s)) != 0) {
+                        goto out;
+                }
+                db = &s->dma_dac2;
+        } else if (vma->vm_flags & VM_READ) {
+                if ((ret = prog_dmabuf_adc(s)) != 0) {
+                        goto out;
+                }
+                db = &s->dma_adc;
+        } else {
+                ret = -EINVAL;
+                goto out;
+        }
+        if (vma->vm_pgoff != 0) {
+                ret = -EINVAL;
+                goto out;
+        }
+        size = vma->vm_end - vma->vm_start;
+        if (size > (PAGE_SIZE << db->buforder)) {
+                ret = -EINVAL;
+                goto out;
+        }
+        if (remap_pfn_range(vma, vma->vm_start,
+                                virt_to_phys(db->rawbuf) >> PAGE_SHIFT,
+                                size, vma->vm_page_prot)) {
+                ret = -EAGAIN;
+                goto out;
+        }
+        db->mapped = 1;
+out:
+        up(&s->sem);
+        unlock_kernel();
+        return ret;
+}
+
+static int es1371_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+{
+        struct es1371_state *s = (struct es1371_state *)file->private_data;
+        unsigned long flags;
+        audio_buf_info abinfo;
+        count_info cinfo;
+        int count;
+        int val, mapped, ret;
+        void __user *argp = (void __user *)arg;
+        int __user *p = argp;
+
+        VALIDATE_STATE(s);
+        mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac2.mapped) ||
+                ((file->f_mode & FMODE_READ) && s->dma_adc.mapped);
+        switch (cmd) {
+        case OSS_GETVERSION:
+                return put_user(SOUND_VERSION, p);
+
+        case SNDCTL_DSP_SYNC:
+                if (file->f_mode & FMODE_WRITE)
+                        return drain_dac2(s, 0/*file->f_flags & O_NONBLOCK*/);
+                return 0;
+                
+        case SNDCTL_DSP_SETDUPLEX:
+                return 0;
+
+        case SNDCTL_DSP_GETCAPS:
+                return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, p);
+                
+        case SNDCTL_DSP_RESET:
+                if (file->f_mode & FMODE_WRITE) {
+                        stop_dac2(s);
+                        synchronize_irq(s->irq);
+                        s->dma_dac2.swptr = s->dma_dac2.hwptr = s->dma_dac2.count = s->dma_dac2.total_bytes = 0;
+                }
+                if (file->f_mode & FMODE_READ) {
+                        stop_adc(s);
+                        synchronize_irq(s->irq);
+                        s->dma_adc.swptr = s->dma_adc.hwptr = s->dma_adc.count = s->dma_adc.total_bytes = 0;
+                }
+                return 0;
+
+        case SNDCTL_DSP_SPEED:
+                if (get_user(val, p))
+                        return -EFAULT;
+                if (val >= 0) {
+                        if (file->f_mode & FMODE_READ) {
+                                stop_adc(s);
+                                s->dma_adc.ready = 0;
+                                set_adc_rate(s, val);
+                        }
+                        if (file->f_mode & FMODE_WRITE) {
+                                stop_dac2(s);
+                                s->dma_dac2.ready = 0;
+                                set_dac2_rate(s, val);
+                        }
+                }
+                return put_user((file->f_mode & FMODE_READ) ? s->adcrate : s->dac2rate, p);
+
+        case SNDCTL_DSP_STEREO:
+                if (get_user(val, p))
+                        return -EFAULT;
+                if (file->f_mode & FMODE_READ) {
+                        stop_adc(s);
+                        s->dma_adc.ready = 0;
+                        spin_lock_irqsave(&s->lock, flags);
+                        if (val)
+                                s->sctrl |= SCTRL_R1SMB;
+                        else
+                                s->sctrl &= ~SCTRL_R1SMB;
+                        outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
+                        spin_unlock_irqrestore(&s->lock, flags);
+                }
+                if (file->f_mode & FMODE_WRITE) {
+                        stop_dac2(s);
+                        s->dma_dac2.ready = 0;
+                        spin_lock_irqsave(&s->lock, flags);
+                        if (val)
+                                s->sctrl |= SCTRL_P2SMB;
+                        else
+                                s->sctrl &= ~SCTRL_P2SMB;
+                        outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
+                        spin_unlock_irqrestore(&s->lock, flags);
+                }
+                return 0;
+
+        case SNDCTL_DSP_CHANNELS:
+                if (get_user(val, p))
+                        return -EFAULT;
+                if (val != 0) {
+                        if (file->f_mode & FMODE_READ) {
+                                stop_adc(s);
+                                s->dma_adc.ready = 0;
+                                spin_lock_irqsave(&s->lock, flags);
+                                if (val >= 2)
+                                        s->sctrl |= SCTRL_R1SMB;
+                                else
+                                        s->sctrl &= ~SCTRL_R1SMB;
+                                outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
+                                spin_unlock_irqrestore(&s->lock, flags);
+                        }
+                        if (file->f_mode & FMODE_WRITE) {
+                                stop_dac2(s);
+                                s->dma_dac2.ready = 0;
+                                spin_lock_irqsave(&s->lock, flags);
+                                if (val >= 2)
+                                        s->sctrl |= SCTRL_P2SMB;
+                                else
+                                        s->sctrl &= ~SCTRL_P2SMB;
+                                outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
+                                spin_unlock_irqrestore(&s->lock, flags);
+                        }
+                }
+                return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SMB : SCTRL_P2SMB)) ? 2 : 1, p);
+                
+        case SNDCTL_DSP_GETFMTS: /* Returns a mask */
+                return put_user(AFMT_S16_LE|AFMT_U8, p);
+                
+        case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
+                if (get_user(val, p))
+                        return -EFAULT;
+                if (val != AFMT_QUERY) {
+                        if (file->f_mode & FMODE_READ) {
+                                stop_adc(s);
+                                s->dma_adc.ready = 0;
+                                spin_lock_irqsave(&s->lock, flags);
+                                if (val == AFMT_S16_LE)
+                                        s->sctrl |= SCTRL_R1SEB;
+                                else
+                                        s->sctrl &= ~SCTRL_R1SEB;
+                                outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
+                                spin_unlock_irqrestore(&s->lock, flags);
+                        }
+                        if (file->f_mode & FMODE_WRITE) {
+                                stop_dac2(s);
+                                s->dma_dac2.ready = 0;
+                                spin_lock_irqsave(&s->lock, flags);
+                                if (val == AFMT_S16_LE)
+                                        s->sctrl |= SCTRL_P2SEB;
+                                else
+                                        s->sctrl &= ~SCTRL_P2SEB;
+                                outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
+                                spin_unlock_irqrestore(&s->lock, flags);
+                        }
+                }
+                return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SEB : SCTRL_P2SEB)) ? 
+                                AFMT_S16_LE : AFMT_U8, p);
+                
+        case SNDCTL_DSP_POST:
+                return 0;
+
+        case SNDCTL_DSP_GETTRIGGER:
+                val = 0;
+                if (file->f_mode & FMODE_READ && s->ctrl & CTRL_ADC_EN) 
+                        val |= PCM_ENABLE_INPUT;
+                if (file->f_mode & FMODE_WRITE && s->ctrl & CTRL_DAC2_EN) 
+                        val |= PCM_ENABLE_OUTPUT;
+                return put_user(val, p);
+                
+        case SNDCTL_DSP_SETTRIGGER:
+                if (get_user(val, p))
+                        return -EFAULT;
+                if (file->f_mode & FMODE_READ) {
+                        if (val & PCM_ENABLE_INPUT) {
+                                if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s)))
+                                        return ret;
+                                s->dma_adc.enabled = 1;
+                                start_adc(s);
+                        } else {
+                                s->dma_adc.enabled = 0;
+                                stop_adc(s);
+                        }
+                }
+                if (file->f_mode & FMODE_WRITE) {
+                        if (val & PCM_ENABLE_OUTPUT) {
+                                if (!s->dma_dac2.ready && (ret = prog_dmabuf_dac2(s)))
+                                        return ret;
+                                s->dma_dac2.enabled = 1;
+                                start_dac2(s);
+                        } else {
+                                s->dma_dac2.enabled = 0;
+                                stop_dac2(s);
+                        }
+                }
+                return 0;
+
+        case SNDCTL_DSP_GETOSPACE:
+                if (!(file->f_mode & FMODE_WRITE))
+                        return -EINVAL;
+                if (!s->dma_dac2.ready && (val = prog_dmabuf_dac2(s)) != 0)
+                        return val;
+                spin_lock_irqsave(&s->lock, flags);
+                es1371_update_ptr(s);
+                abinfo.fragsize = s->dma_dac2.fragsize;
+                count = s->dma_dac2.count;
+                if (count < 0)
+                        count = 0;
+                abinfo.bytes = s->dma_dac2.dmasize - count;
+                abinfo.fragstotal = s->dma_dac2.numfrag;
+                abinfo.fragments = abinfo.bytes >> s->dma_dac2.fragshift;      
+                spin_unlock_irqrestore(&s->lock, flags);
+                return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
+
+        case SNDCTL_DSP_GETISPACE:
+                if (!(file->f_mode & FMODE_READ))
+                        return -EINVAL;
+                if (!s->dma_adc.ready && (val = prog_dmabuf_adc(s)) != 0)
+                        return val;
+                spin_lock_irqsave(&s->lock, flags);
+                es1371_update_ptr(s);
+                abinfo.fragsize = s->dma_adc.fragsize;
+                count = s->dma_adc.count;
+                if (count < 0)
+                        count = 0;
+                abinfo.bytes = count;
+                abinfo.fragstotal = s->dma_adc.numfrag;
+                abinfo.fragments = abinfo.bytes >> s->dma_adc.fragshift;      
+                spin_unlock_irqrestore(&s->lock, flags);
+                return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
+                
+        case SNDCTL_DSP_NONBLOCK:
+                file->f_flags |= O_NONBLOCK;
+                return 0;
+
+        case SNDCTL_DSP_GETODELAY:
+                if (!(file->f_mode & FMODE_WRITE))
+                        return -EINVAL;
+                if (!s->dma_dac2.ready && (val = prog_dmabuf_dac2(s)) != 0)
+                        return val;
+                spin_lock_irqsave(&s->lock, flags);
+                es1371_update_ptr(s);
+                count = s->dma_dac2.count;
+                spin_unlock_irqrestore(&s->lock, flags);
+                if (count < 0)
+                        count = 0;
+                return put_user(count, p);
+
+        case SNDCTL_DSP_GETIPTR:
+                if (!(file->f_mode & FMODE_READ))
+                        return -EINVAL;
+                if (!s->dma_adc.ready && (val = prog_dmabuf_adc(s)) != 0)
+                        return val;
+                spin_lock_irqsave(&s->lock, flags);
+                es1371_update_ptr(s);
+                cinfo.bytes = s->dma_adc.total_bytes;
+                count = s->dma_adc.count;
+                if (count < 0)
+                        count = 0;
+                cinfo.blocks = count >> s->dma_adc.fragshift;
+                cinfo.ptr = s->dma_adc.hwptr;
+                if (s->dma_adc.mapped)
+                        s->dma_adc.count &= s->dma_adc.fragsize-1;
+                spin_unlock_irqrestore(&s->lock, flags);
+                if (copy_to_user(argp, &cinfo, sizeof(cinfo)))
+                        return -EFAULT;
+                return 0;
+
+        case SNDCTL_DSP_GETOPTR:
+                if (!(file->f_mode & FMODE_WRITE))
+                        return -EINVAL;
+                if (!s->dma_dac2.ready && (val = prog_dmabuf_dac2(s)) != 0)
+                        return val;
+                spin_lock_irqsave(&s->lock, flags);
+                es1371_update_ptr(s);
+                cinfo.bytes = s->dma_dac2.total_bytes;
+                count = s->dma_dac2.count;
+                if (count < 0)
+                        count = 0;
+                cinfo.blocks = count >> s->dma_dac2.fragshift;
+                cinfo.ptr = s->dma_dac2.hwptr;
+                if (s->dma_dac2.mapped)
+                        s->dma_dac2.count &= s->dma_dac2.fragsize-1;
+                spin_unlock_irqrestore(&s->lock, flags);
+                if (copy_to_user(argp, &cinfo, sizeof(cinfo)))
+                        return -EFAULT;
+                return 0;
+
+        case SNDCTL_DSP_GETBLKSIZE:
+                if (file->f_mode & FMODE_WRITE) {
+                        if ((val = prog_dmabuf_dac2(s)))
+                                return val;
+                        return put_user(s->dma_dac2.fragsize, p);
+                }
+                if ((val = prog_dmabuf_adc(s)))
+                        return val;
+                return put_user(s->dma_adc.fragsize, p);
+
+        case SNDCTL_DSP_SETFRAGMENT:
+                if (get_user(val, p))
+                        return -EFAULT;
+                if (file->f_mode & FMODE_READ) {
+                        s->dma_adc.ossfragshift = val & 0xffff;
+                        s->dma_adc.ossmaxfrags = (val >> 16) & 0xffff;
+                        if (s->dma_adc.ossfragshift < 4)
+                                s->dma_adc.ossfragshift = 4;
+                        if (s->dma_adc.ossfragshift > 15)
+                                s->dma_adc.ossfragshift = 15;
+                        if (s->dma_adc.ossmaxfrags < 4)
+                                s->dma_adc.ossmaxfrags = 4;
+                }
+                if (file->f_mode & FMODE_WRITE) {
+                        s->dma_dac2.ossfragshift = val & 0xffff;
+                        s->dma_dac2.ossmaxfrags = (val >> 16) & 0xffff;
+                        if (s->dma_dac2.ossfragshift < 4)
+                                s->dma_dac2.ossfragshift = 4;
+                        if (s->dma_dac2.ossfragshift > 15)
+                                s->dma_dac2.ossfragshift = 15;
+                        if (s->dma_dac2.ossmaxfrags < 4)
+                                s->dma_dac2.ossmaxfrags = 4;
+                }
+                return 0;
+
+        case SNDCTL_DSP_SUBDIVIDE:
+                if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) ||
+                    (file->f_mode & FMODE_WRITE && s->dma_dac2.subdivision))
+                        return -EINVAL;
+                if (get_user(val, p))
+                        return -EFAULT;
+                if (val != 1 && val != 2 && val != 4)
+                        return -EINVAL;
+                if (file->f_mode & FMODE_READ)
+                        s->dma_adc.subdivision = val;
+                if (file->f_mode & FMODE_WRITE)
+                        s->dma_dac2.subdivision = val;
+                return 0;
+
+        case SOUND_PCM_READ_RATE:
+                return put_user((file->f_mode & FMODE_READ) ? s->adcrate : s->dac2rate, p);
+
+        case SOUND_PCM_READ_CHANNELS:
+                return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SMB : SCTRL_P2SMB)) ? 2 : 1, p);
+                
+        case SOUND_PCM_READ_BITS:
+                return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SEB : SCTRL_P2SEB)) ? 16 : 8, p);
+
+        case SOUND_PCM_WRITE_FILTER:
+        case SNDCTL_DSP_SETSYNCRO:
+        case SOUND_PCM_READ_FILTER:
+                return -EINVAL;
+                
+        }
+        return mixdev_ioctl(s->codec, cmd, arg);
+}
+
+static int es1371_open(struct inode *inode, struct file *file)
+{
+        int minor = iminor(inode);
+        DECLARE_WAITQUEUE(wait, current);
+        unsigned long flags;
+        struct list_head *list;
+        struct es1371_state *s;
+
+        for (list = devs.next; ; list = list->next) {
+                if (list == &devs)
+                        return -ENODEV;
+                s = list_entry(list, struct es1371_state, devs);
+                if (!((s->dev_audio ^ minor) & ~0xf))
+                        break;
+        }
+        VALIDATE_STATE(s);
+        file->private_data = s;
+        /* wait for device to become free */
+        down(&s->open_sem);
+        while (s->open_mode & file->f_mode) {
+                if (file->f_flags & O_NONBLOCK) {
+                        up(&s->open_sem);
+                        return -EBUSY;
+                }
+                add_wait_queue(&s->open_wait, &wait);
+                __set_current_state(TASK_INTERRUPTIBLE);
+                up(&s->open_sem);
+                schedule();
+                remove_wait_queue(&s->open_wait, &wait);
+                set_current_state(TASK_RUNNING);
+                if (signal_pending(current))
+                        return -ERESTARTSYS;
+                down(&s->open_sem);
+        }
+        if (file->f_mode & FMODE_READ) {
+                s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags = s->dma_adc.subdivision = 0;
+                s->dma_adc.enabled = 1;
+                set_adc_rate(s, 8000);
+        }
+        if (file->f_mode & FMODE_WRITE) {
+                s->dma_dac2.ossfragshift = s->dma_dac2.ossmaxfrags = s->dma_dac2.subdivision = 0;
+                s->dma_dac2.enabled = 1;
+                set_dac2_rate(s, 8000);
+        }
+        spin_lock_irqsave(&s->lock, flags);
+        if (file->f_mode & FMODE_READ) {
+                s->sctrl &= ~SCTRL_R1FMT;
+                if ((minor & 0xf) == SND_DEV_DSP16)
+                        s->sctrl |= ES1371_FMT_S16_MONO << SCTRL_SH_R1FMT;
+                else
+                        s->sctrl |= ES1371_FMT_U8_MONO << SCTRL_SH_R1FMT;
+        }
+        if (file->f_mode & FMODE_WRITE) {
+                s->sctrl &= ~SCTRL_P2FMT;
+                if ((minor & 0xf) == SND_DEV_DSP16)
+                        s->sctrl |= ES1371_FMT_S16_MONO << SCTRL_SH_P2FMT;
+                else
+                        s->sctrl |= ES1371_FMT_U8_MONO << SCTRL_SH_P2FMT;
+        }
+        outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
+        spin_unlock_irqrestore(&s->lock, flags);
+        s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
+        up(&s->open_sem);
+        init_MUTEX(&s->sem);
+        return nonseekable_open(inode, file);
+}
+
+static int es1371_release(struct inode *inode, struct file *file)
+{
+        struct es1371_state *s = (struct es1371_state *)file->private_data;
+
+        VALIDATE_STATE(s);
+        lock_kernel();
+        if (file->f_mode & FMODE_WRITE)
+                drain_dac2(s, file->f_flags & O_NONBLOCK);
+        down(&s->open_sem);
+        if (file->f_mode & FMODE_WRITE) {
+                stop_dac2(s);
+                dealloc_dmabuf(s, &s->dma_dac2);
+        }
+        if (file->f_mode & FMODE_READ) {
+                stop_adc(s);
+                dealloc_dmabuf(s, &s->dma_adc);
+        }
+        s->open_mode &= ~(file->f_mode & (FMODE_READ|FMODE_WRITE));
+        up(&s->open_sem);
+        wake_up(&s->open_wait);
+        unlock_kernel();
+        return 0;
+}
+
+static /*const*/ struct file_operations es1371_audio_fops = {
+        .owner          = THIS_MODULE,
+        .llseek         = no_llseek,
+        .read           = es1371_read,
+        .write          = es1371_write,
+        .poll           = es1371_poll,
+        .ioctl          = es1371_ioctl,
+        .mmap           = es1371_mmap,
+        .open           = es1371_open,
+        .release        = es1371_release,
+};
+
+/* --------------------------------------------------------------------- */
+
+static ssize_t es1371_write_dac(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
+{
+        struct es1371_state *s = (struct es1371_state *)file->private_data;
+        DECLARE_WAITQUEUE(wait, current);
+        ssize_t ret = 0;
+        unsigned long flags;
+        unsigned swptr;
+        int cnt;
+
+        VALIDATE_STATE(s);
+        if (s->dma_dac1.mapped)
+                return -ENXIO;
+        if (!s->dma_dac1.ready && (ret = prog_dmabuf_dac1(s)))
+                return ret;
+        if (!access_ok(VERIFY_READ, buffer, count))
+                return -EFAULT;
+        add_wait_queue(&s->dma_dac1.wait, &wait);
+        while (count > 0) {
+                spin_lock_irqsave(&s->lock, flags);
+                if (s->dma_dac1.count < 0) {
+                        s->dma_dac1.count = 0;
+                        s->dma_dac1.swptr = s->dma_dac1.hwptr;
+                }
+                swptr = s->dma_dac1.swptr;
+                cnt = s->dma_dac1.dmasize-swptr;
+                if (s->dma_dac1.count + cnt > s->dma_dac1.dmasize)
+                        cnt = s->dma_dac1.dmasize - s->dma_dac1.count;
+                if (cnt <= 0)
+                        __set_current_state(TASK_INTERRUPTIBLE);
+                spin_unlock_irqrestore(&s->lock, flags);
+                if (cnt > count)
+                        cnt = count;
+                if (cnt <= 0) {
+                        if (s->dma_dac1.enabled)
+                                start_dac1(s);
+                        if (file->f_flags & O_NONBLOCK) {
+                                if (!ret)
+                                        ret = -EAGAIN;
+                                break;
+                        }
+                        schedule();
+                        if (signal_pending(current)) {
+                                if (!ret)
+                                        ret = -ERESTARTSYS;
+                                break;
+                        }
+                        continue;
+                }
+                if (copy_from_user(s->dma_dac1.rawbuf + swptr, buffer, cnt)) {
+                        if (!ret)
+                                ret = -EFAULT;
+                        break;
+                }
+                swptr = (swptr + cnt) % s->dma_dac1.dmasize;
+                spin_lock_irqsave(&s->lock, flags);
+                s->dma_dac1.swptr = swptr;
+                s->dma_dac1.count += cnt;
+                s->dma_dac1.endcleared = 0;
+                spin_unlock_irqrestore(&s->lock, flags);
+                count -= cnt;
+                buffer += cnt;
+                ret += cnt;
+                if (s->dma_dac1.enabled)
+                        start_dac1(s);
+        }
+        remove_wait_queue(&s->dma_dac1.wait, &wait);
+        set_current_state(TASK_RUNNING);
+        return ret;
+}
+
+/* No kernel lock - we have our own spinlock */
+static unsigned int es1371_poll_dac(struct file *file, struct poll_table_struct *wait)
+{
+        struct es1371_state *s = (struct es1371_state *)file->private_data;
+        unsigned long flags;
+        unsigned int mask = 0;
+
+        VALIDATE_STATE(s);
+        if (!s->dma_dac1.ready && prog_dmabuf_dac1(s))
+                return 0;
+        poll_wait(file, &s->dma_dac1.wait, wait);
+        spin_lock_irqsave(&s->lock, flags);
+        es1371_update_ptr(s);
+        if (s->dma_dac1.mapped) {
+                if (s->dma_dac1.count >= (signed)s->dma_dac1.fragsize)
+                        mask |= POLLOUT | POLLWRNORM;
+        } else {
+                if ((signed)s->dma_dac1.dmasize >= s->dma_dac1.count + (signed)s->dma_dac1.fragsize)
+                        mask |= POLLOUT | POLLWRNORM;
+        }
+        spin_unlock_irqrestore(&s->lock, flags);
+        return mask;
+}
+
+static int es1371_mmap_dac(struct file *file, struct vm_area_struct *vma)
+{
+        struct es1371_state *s = (struct es1371_state *)file->private_data;
+        int ret;
+        unsigned long size;
+
+        VALIDATE_STATE(s);
+        if (!(vma->vm_flags & VM_WRITE))
+                return -EINVAL;
+        lock_kernel();
+        if ((ret = prog_dmabuf_dac1(s)) != 0)
+                goto out;
+        ret = -EINVAL;
+        if (vma->vm_pgoff != 0)
+                goto out;
+        size = vma->vm_end - vma->vm_start;
+        if (size > (PAGE_SIZE << s->dma_dac1.buforder))
+                goto out;
+        ret = -EAGAIN;
+        if (remap_pfn_range(vma, vma->vm_start,
+                        virt_to_phys(s->dma_dac1.rawbuf) >> PAGE_SHIFT,
+                        size, vma->vm_page_prot))
+                goto out;
+        s->dma_dac1.mapped = 1;
+        ret = 0;
+out:
+        unlock_kernel();
+        return ret;
+}
+
+static int es1371_ioctl_dac(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+{
+        struct es1371_state *s = (struct es1371_state *)file->private_data;
+        unsigned long flags;
+        audio_buf_info abinfo;
+        count_info cinfo;
+        int count;
+        int val, ret;
+        int __user *p = (int __user *)arg;
+
+        VALIDATE_STATE(s);
+        switch (cmd) {
+        case OSS_GETVERSION:
+                return put_user(SOUND_VERSION, p);
+
+        case SNDCTL_DSP_SYNC:
+                return drain_dac1(s, 0/*file->f_flags & O_NONBLOCK*/);
+                
+        case SNDCTL_DSP_SETDUPLEX:
+                return -EINVAL;
+
+        case SNDCTL_DSP_GETCAPS:
+                return put_user(DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, p);
+                
+        case SNDCTL_DSP_RESET:
+                stop_dac1(s);
+                synchronize_irq(s->irq);
+                s->dma_dac1.swptr = s->dma_dac1.hwptr = s->dma_dac1.count = s->dma_dac1.total_bytes = 0;
+                return 0;
+
+        case SNDCTL_DSP_SPEED:
+                if (get_user(val, p))
+                        return -EFAULT;
+                if (val >= 0) {
+                        stop_dac1(s);
+                        s->dma_dac1.ready = 0;
+                        set_dac1_rate(s, val);
+                }
+                return put_user(s->dac1rate, p);
+
+        case SNDCTL_DSP_STEREO:
+                if (get_user(val, p))
+                        return -EFAULT;
+                stop_dac1(s);
+                s->dma_dac1.ready = 0;
+                spin_lock_irqsave(&s->lock, flags);
+                if (val)
+                        s->sctrl |= SCTRL_P1SMB;
+                else
+                        s->sctrl &= ~SCTRL_P1SMB;
+                outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
+                spin_unlock_irqrestore(&s->lock, flags);
+                return 0;
+
+        case SNDCTL_DSP_CHANNELS:
+                if (get_user(val, p))
+                        return -EFAULT;
+                if (val != 0) {
+                        stop_dac1(s);
+                        s->dma_dac1.ready = 0;
+                        spin_lock_irqsave(&s->lock, flags);
+                        if (val >= 2)
+                                s->sctrl |= SCTRL_P1SMB;
+                        else
+                                s->sctrl &= ~SCTRL_P1SMB;
+                        outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
+                        spin_unlock_irqrestore(&s->lock, flags);
+                }
+                return put_user((s->sctrl & SCTRL_P1SMB) ? 2 : 1, p);
+                
+        case SNDCTL_DSP_GETFMTS: /* Returns a mask */
+                return put_user(AFMT_S16_LE|AFMT_U8, p);
+                
+        case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
+                if (get_user(val, p))
+                        return -EFAULT;
+                if (val != AFMT_QUERY) {
+                        stop_dac1(s);
+                        s->dma_dac1.ready = 0;
+                        spin_lock_irqsave(&s->lock, flags);
+                        if (val == AFMT_S16_LE)
+                                s->sctrl |= SCTRL_P1SEB;
+                        else
+                                s->sctrl &= ~SCTRL_P1SEB;
+                        outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
+                        spin_unlock_irqrestore(&s->lock, flags);
+                }
+                return put_user((s->sctrl & SCTRL_P1SEB) ? AFMT_S16_LE : AFMT_U8, p);
+
+        case SNDCTL_DSP_POST:
+                return 0;
+
+        case SNDCTL_DSP_GETTRIGGER:
+                return put_user((s->ctrl & CTRL_DAC1_EN) ? PCM_ENABLE_OUTPUT : 0, p);
+                                                
+        case SNDCTL_DSP_SETTRIGGER:
+                if (get_user(val, p))
+                        return -EFAULT;
+                if (val & PCM_ENABLE_OUTPUT) {
+                        if (!s->dma_dac1.ready && (ret = prog_dmabuf_dac1(s)))
+                                return ret;
+                        s->dma_dac1.enabled = 1;
+                        start_dac1(s);
+                } else {
+                        s->dma_dac1.enabled = 0;
+                        stop_dac1(s);
+                }
+                return 0;
+
+        case SNDCTL_DSP_GETOSPACE:
+                if (!s->dma_dac1.ready && (val = prog_dmabuf_dac1(s)) != 0)
+                        return val;
+                spin_lock_irqsave(&s->lock, flags);
+                es1371_update_ptr(s);
+                abinfo.fragsize = s->dma_dac1.fragsize;
+                count = s->dma_dac1.count;
+                if (count < 0)
+                        count = 0;
+                abinfo.bytes = s->dma_dac1.dmasize - count;
+                abinfo.fragstotal = s->dma_dac1.numfrag;
+                abinfo.fragments = abinfo.bytes >> s->dma_dac1.fragshift;      
+                spin_unlock_irqrestore(&s->lock, flags);
+                return copy_to_user((void __user *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
+
+        case SNDCTL_DSP_NONBLOCK:
+                file->f_flags |= O_NONBLOCK;
+                return 0;
+
+        case SNDCTL_DSP_GETODELAY:
+                if (!s->dma_dac1.ready && (val = prog_dmabuf_dac1(s)) != 0)
+                        return val;
+                spin_lock_irqsave(&s->lock, flags);
+                es1371_update_ptr(s);
+                count = s->dma_dac1.count;
+                spin_unlock_irqrestore(&s->lock, flags);
+                if (count < 0)
+                        count = 0;
+                return put_user(count, p);
+
+        case SNDCTL_DSP_GETOPTR:
+                if (!s->dma_dac1.ready && (val = prog_dmabuf_dac1(s)) != 0)
+                        return val;
+                spin_lock_irqsave(&s->lock, flags);
+                es1371_update_ptr(s);
+                cinfo.bytes = s->dma_dac1.total_bytes;
+                count = s->dma_dac1.count;
+                if (count < 0)
+                        count = 0;
+                cinfo.blocks = count >> s->dma_dac1.fragshift;
+                cinfo.ptr = s->dma_dac1.hwptr;
+                if (s->dma_dac1.mapped)
+                        s->dma_dac1.count &= s->dma_dac1.fragsize-1;
+                spin_unlock_irqrestore(&s->lock, flags);
+                if (copy_to_user((void __user *)arg, &cinfo, sizeof(cinfo)))
+                        return -EFAULT;
+                return 0;
+
+        case SNDCTL_DSP_GETBLKSIZE:
+                if ((val = prog_dmabuf_dac1(s)))
+                        return val;
+                return put_user(s->dma_dac1.fragsize, p);
+
+        case SNDCTL_DSP_SETFRAGMENT:
+                if (get_user(val, p))
+                        return -EFAULT;
+                s->dma_dac1.ossfragshift = val & 0xffff;
+                s->dma_dac1.ossmaxfrags = (val >> 16) & 0xffff;
+                if (s->dma_dac1.ossfragshift < 4)
+                        s->dma_dac1.ossfragshift = 4;
+                if (s->dma_dac1.ossfragshift > 15)
+                        s->dma_dac1.ossfragshift = 15;
+                if (s->dma_dac1.ossmaxfrags < 4)
+                        s->dma_dac1.ossmaxfrags = 4;
+                return 0;
+
+        case SNDCTL_DSP_SUBDIVIDE:
+                if (s->dma_dac1.subdivision)
+                        return -EINVAL;
+                if (get_user(val, p))
+                        return -EFAULT;
+                if (val != 1 && val != 2 && val != 4)
+                        return -EINVAL;
+                s->dma_dac1.subdivision = val;
+                return 0;
+
+        case SOUND_PCM_READ_RATE:
+                return put_user(s->dac1rate, p);
+
+        case SOUND_PCM_READ_CHANNELS:
+                return put_user((s->sctrl & SCTRL_P1SMB) ? 2 : 1, p);
+
+        case SOUND_PCM_READ_BITS:
+                return put_user((s->sctrl & SCTRL_P1SEB) ? 16 : 8, p);
+
+        case SOUND_PCM_WRITE_FILTER:
+        case SNDCTL_DSP_SETSYNCRO:
+        case SOUND_PCM_READ_FILTER:
+                return -EINVAL;
+                
+        }
+        return mixdev_ioctl(s->codec, cmd, arg);
+}
+
+static int es1371_open_dac(struct inode *inode, struct file *file)
+{
+        int minor = iminor(inode);
+        DECLARE_WAITQUEUE(wait, current);
+        unsigned long flags;
+        struct list_head *list;
+        struct es1371_state *s;
+
+        for (list = devs.next; ; list = list->next) {
+                if (list == &devs)
+                        return -ENODEV;
+                s = list_entry(list, struct es1371_state, devs);
+                if (!((s->dev_dac ^ minor) & ~0xf))
+                        break;
+        }
+        VALIDATE_STATE(s);
+        /* we allow opening with O_RDWR, most programs do it although they will only write */
+#if 0
+        if (file->f_mode & FMODE_READ)
+                return -EPERM;
+#endif
+        if (!(file->f_mode & FMODE_WRITE))
+                return -EINVAL;
+        file->private_data = s;
+        /* wait for device to become free */
+        down(&s->open_sem);
+        while (s->open_mode & FMODE_DAC) {
+                if (file->f_flags & O_NONBLOCK) {
+                        up(&s->open_sem);
+                        return -EBUSY;
+                }
+                add_wait_queue(&s->open_wait, &wait);
+                __set_current_state(TASK_INTERRUPTIBLE);
+                up(&s->open_sem);
+                schedule();
+                remove_wait_queue(&s->open_wait, &wait);
+                set_current_state(TASK_RUNNING);
+                if (signal_pending(current))
+                        return -ERESTARTSYS;
+                down(&s->open_sem);
+        }
+        s->dma_dac1.ossfragshift = s->dma_dac1.ossmaxfrags = s->dma_dac1.subdivision = 0;
+        s->dma_dac1.enabled = 1;
+        set_dac1_rate(s, 8000);
+        spin_lock_irqsave(&s->lock, flags);
+        s->sctrl &= ~SCTRL_P1FMT;
+        if ((minor & 0xf) == SND_DEV_DSP16)
+                s->sctrl |= ES1371_FMT_S16_MONO << SCTRL_SH_P1FMT;
+        else
+                s->sctrl |= ES1371_FMT_U8_MONO << SCTRL_SH_P1FMT;
+        outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
+        spin_unlock_irqrestore(&s->lock, flags);
+        s->open_mode |= FMODE_DAC;
+        up(&s->open_sem);
+        return nonseekable_open(inode, file);
+}
+
+static int es1371_release_dac(struct inode *inode, struct file *file)
+{
+        struct es1371_state *s = (struct es1371_state *)file->private_data;
+
+        VALIDATE_STATE(s);
+        lock_kernel();
+        drain_dac1(s, file->f_flags & O_NONBLOCK);
+        down(&s->open_sem);
+        stop_dac1(s);
+        dealloc_dmabuf(s, &s->dma_dac1);
+        s->open_mode &= ~FMODE_DAC;
+        up(&s->open_sem);
+        wake_up(&s->open_wait);
+        unlock_kernel();
+        return 0;
+}
+
+static /*const*/ struct file_operations es1371_dac_fops = {
+        .owner          = THIS_MODULE,
+        .llseek         = no_llseek,
+        .write          = es1371_write_dac,
+        .poll           = es1371_poll_dac,
+        .ioctl          = es1371_ioctl_dac,
+        .mmap           = es1371_mmap_dac,
+        .open           = es1371_open_dac,
+        .release        = es1371_release_dac,
+};
+
+/* --------------------------------------------------------------------- */
+
+static ssize_t es1371_midi_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
+{
+        struct es1371_state *s = (struct es1371_state *)file->private_data;
+        DECLARE_WAITQUEUE(wait, current);
+        ssize_t ret;
+        unsigned long flags;
+        unsigned ptr;
+        int cnt;
+
+        VALIDATE_STATE(s);
+        if (!access_ok(VERIFY_WRITE, buffer, count))
+                return -EFAULT;
+        if (count == 0)
+                return 0;
+        ret = 0;
+        add_wait_queue(&s->midi.iwait, &wait);
+        while (count > 0) {
+                spin_lock_irqsave(&s->lock, flags);
+                ptr = s->midi.ird;
+                cnt = MIDIINBUF - ptr;
+                if (s->midi.icnt < cnt)
+                        cnt = s->midi.icnt;
+                if (cnt <= 0)
+                        __set_current_state(TASK_INTERRUPTIBLE);
+                spin_unlock_irqrestore(&s->lock, flags);
+                if (cnt > count)
+                        cnt = count;
+                if (cnt <= 0) {
+                        if (file->f_flags & O_NONBLOCK) {
+                                if (!ret)
+                                        ret = -EAGAIN;
+                                break;
+                        }
+                        schedule();
+                        if (signal_pending(current)) {
+                                if (!ret)
+                                        ret = -ERESTARTSYS;
+                                break;
+                        }
+                        continue;
+                }
+                if (copy_to_user(buffer, s->midi.ibuf + ptr, cnt)) {
+                        if (!ret)
+                                ret = -EFAULT;
+                        break;
+                }
+                ptr = (ptr + cnt) % MIDIINBUF;
+                spin_lock_irqsave(&s->lock, flags);
+                s->midi.ird = ptr;
+                s->midi.icnt -= cnt;
+                spin_unlock_irqrestore(&s->lock, flags);
+                count -= cnt;
+                buffer += cnt;
+                ret += cnt;
+                break;
+        }
+        __set_current_state(TASK_RUNNING);
+        remove_wait_queue(&s->midi.iwait, &wait);
+        return ret;
+}
+
+static ssize_t es1371_midi_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
+{
+        struct es1371_state *s = (struct es1371_state *)file->private_data;
+        DECLARE_WAITQUEUE(wait, current);
+        ssize_t ret;
+        unsigned long flags;
+        unsigned ptr;
+        int cnt;
+
+        VALIDATE_STATE(s);
+        if (!access_ok(VERIFY_READ, buffer, count))
+                return -EFAULT;
+        if (count == 0)
+                return 0;
+        ret = 0;
+        add_wait_queue(&s->midi.owait, &wait);
+        while (count > 0) {
+                spin_lock_irqsave(&s->lock, flags);
+                ptr = s->midi.owr;
+                cnt = MIDIOUTBUF - ptr;
+                if (s->midi.ocnt + cnt > MIDIOUTBUF)
+                        cnt = MIDIOUTBUF - s->midi.ocnt;
+                if (cnt <= 0) {
+                        __set_current_state(TASK_INTERRUPTIBLE);
+                        es1371_handle_midi(s);
+                }
+                spin_unlock_irqrestore(&s->lock, flags);
+                if (cnt > count)
+                        cnt = count;
+                if (cnt <= 0) {
+                        if (file->f_flags & O_NONBLOCK) {
+                                if (!ret)
+                                        ret = -EAGAIN;
+                                break;
+                        }
+                        schedule();
+                        if (signal_pending(current)) {
+                                if (!ret)
+                                        ret = -ERESTARTSYS;
+                                break;
+                        }
+                        continue;
+                }
+                if (copy_from_user(s->midi.obuf + ptr, buffer, cnt)) {
+                        if (!ret)
+                                ret = -EFAULT;
+                        break;
+                }
+                ptr = (ptr + cnt) % MIDIOUTBUF;
+                spin_lock_irqsave(&s->lock, flags);
+                s->midi.owr = ptr;
+                s->midi.ocnt += cnt;
+                spin_unlock_irqrestore(&s->lock, flags);
+                count -= cnt;
+                buffer += cnt;
+                ret += cnt;
+                spin_lock_irqsave(&s->lock, flags);
+                es1371_handle_midi(s);
+                spin_unlock_irqrestore(&s->lock, flags);
+        }
+        __set_current_state(TASK_RUNNING);
+        remove_wait_queue(&s->midi.owait, &wait);
+        return ret;
+}
+
+/* No kernel lock - we have our own spinlock */
+static unsigned int es1371_midi_poll(struct file *file, struct poll_table_struct *wait)
+{
+        struct es1371_state *s = (struct es1371_state *)file->private_data;
+        unsigned long flags;
+        unsigned int mask = 0;
+
+        VALIDATE_STATE(s);
+        if (file->f_mode & FMODE_WRITE)
+                poll_wait(file, &s->midi.owait, wait);
+        if (file->f_mode & FMODE_READ)
+                poll_wait(file, &s->midi.iwait, wait);
+        spin_lock_irqsave(&s->lock, flags);
+        if (file->f_mode & FMODE_READ) {
+                if (s->midi.icnt > 0)
+                        mask |= POLLIN | POLLRDNORM;
+        }
+        if (file->f_mode & FMODE_WRITE) {
+                if (s->midi.ocnt < MIDIOUTBUF)
+                        mask |= POLLOUT | POLLWRNORM;
+        }
+        spin_unlock_irqrestore(&s->lock, flags);
+        return mask;
+}
+
+static int es1371_midi_open(struct inode *inode, struct file *file)
+{
+        int minor = iminor(inode);
+        DECLARE_WAITQUEUE(wait, current);
+        unsigned long flags;
+        struct list_head *list;
+        struct es1371_state *s;
+
+        for (list = devs.next; ; list = list->next) {
+                if (list == &devs)
+                        return -ENODEV;
+                s = list_entry(list, struct es1371_state, devs);
+                if (s->dev_midi == minor)
+                        break;
+        }
+        VALIDATE_STATE(s);
+        file->private_data = s;
+        /* wait for device to become free */
+        down(&s->open_sem);
+        while (s->open_mode & (file->f_mode << FMODE_MIDI_SHIFT)) {
+                if (file->f_flags & O_NONBLOCK) {
+                        up(&s->open_sem);
+                        return -EBUSY;
+                }
+                add_wait_queue(&s->open_wait, &wait);
+                __set_current_state(TASK_INTERRUPTIBLE);
+                up(&s->open_sem);
+                schedule();
+                remove_wait_queue(&s->open_wait, &wait);
+                set_current_state(TASK_RUNNING);
+                if (signal_pending(current))
+                        return -ERESTARTSYS;
+                down(&s->open_sem);
+        }
+        spin_lock_irqsave(&s->lock, flags);
+        if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
+                s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
+                s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
+                outb(UCTRL_CNTRL_SWR, s->io+ES1371_REG_UART_CONTROL);
+                outb(0, s->io+ES1371_REG_UART_CONTROL);
+                outb(0, s->io+ES1371_REG_UART_TEST);
+        }
+        if (file->f_mode & FMODE_READ) {
+                s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
+        }
+        if (file->f_mode & FMODE_WRITE) {
+                s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
+        }
+        s->ctrl |= CTRL_UART_EN;
+        outl(s->ctrl, s->io+ES1371_REG_CONTROL);
+        es1371_handle_midi(s);
+        spin_unlock_irqrestore(&s->lock, flags);
+        s->open_mode |= (file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ | FMODE_MIDI_WRITE);
+        up(&s->open_sem);
+        return nonseekable_open(inode, file);
+}
+
+static int es1371_midi_release(struct inode *inode, struct file *file)
+{
+        struct es1371_state *s = (struct es1371_state *)file->private_data;
+        DECLARE_WAITQUEUE(wait, current);
+        unsigned long flags;
+        unsigned count, tmo;
+
+        VALIDATE_STATE(s);
+        lock_kernel();
+        if (file->f_mode & FMODE_WRITE) {
+                add_wait_queue(&s->midi.owait, &wait);
+                for (;;) {
+                        __set_current_state(TASK_INTERRUPTIBLE);
+                        spin_lock_irqsave(&s->lock, flags);
+                        count = s->midi.ocnt;
+                        spin_unlock_irqrestore(&s->lock, flags);
+                        if (count <= 0)
+                                break;
+                        if (signal_pending(current))
+                                break;
+                        if (file->f_flags & O_NONBLOCK)
+                                break;
+                        tmo = (count * HZ) / 3100;
+                        if (!schedule_timeout(tmo ? : 1) && tmo)
+                                printk(KERN_DEBUG PFX "midi timed out??\n");
+                }
+                remove_wait_queue(&s->midi.owait, &wait);
+                set_current_state(TASK_RUNNING);
+        }
+        down(&s->open_sem);
+        s->open_mode &= ~((file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE));
+        spin_lock_irqsave(&s->lock, flags);
+        if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
+                s->ctrl &= ~CTRL_UART_EN;
+                outl(s->ctrl, s->io+ES1371_REG_CONTROL);
+        }
+        spin_unlock_irqrestore(&s->lock, flags);
+        up(&s->open_sem);
+        wake_up(&s->open_wait);
+        unlock_kernel();
+        return 0;
+}
+
+static /*const*/ struct file_operations es1371_midi_fops = {
+        .owner          = THIS_MODULE,
+        .llseek         = no_llseek,
+        .read           = es1371_midi_read,
+        .write          = es1371_midi_write,
+        .poll           = es1371_midi_poll,
+        .open           = es1371_midi_open,
+        .release        = es1371_midi_release,
+};
+
+/* --------------------------------------------------------------------- */
+
+/*
+ * for debugging purposes, we'll create a proc device that dumps the
+ * CODEC chipstate
+ */
+
+#ifdef ES1371_DEBUG
+static int proc_es1371_dump (char *buf, char **start, off_t fpos, int length, int *eof, void *data)
+{
+        struct es1371_state *s;
+        int cnt, len = 0;
+
+        if (list_empty(&devs))
+                return 0;
+        s = list_entry(devs.next, struct es1371_state, devs);
+        /* print out header */
+        len += sprintf(buf + len, "\t\tCreative ES137x Debug Dump-o-matic\n");
+
+        /* print out CODEC state */
+        len += sprintf (buf + len, "AC97 CODEC state\n");
+        for (cnt=0; cnt <= 0x7e; cnt = cnt +2)
+                len+= sprintf (buf + len, "reg:0x%02x  val:0x%04x\n", cnt, rdcodec(s->codec, cnt));
+
+        if (fpos >=len){
+                *start = buf;
+                *eof =1;
+                return 0;
+        }
+        *start = buf + fpos;
+        if ((len -= fpos) > length)
+                return length;
+        *eof =1;
+        return len;
+
+}
+#endif /* ES1371_DEBUG */
+
+/* --------------------------------------------------------------------- */
+
+/* maximum number of devices; only used for command line params */
+#define NR_DEVICE 5
+
+static int spdif[NR_DEVICE];
+static int nomix[NR_DEVICE];
+static int amplifier[NR_DEVICE];
+
+static unsigned int devindex;
+
+module_param_array(spdif, bool, NULL, 0);
+MODULE_PARM_DESC(spdif, "if 1 the output is in S/PDIF digital mode");
+module_param_array(nomix, bool, NULL, 0);
+MODULE_PARM_DESC(nomix, "if 1 no analog audio is mixed to the digital output");
+module_param_array(amplifier, bool, NULL, 0);
+MODULE_PARM_DESC(amplifier, "Set to 1 if the machine needs the amp control enabling (many laptops)");
+
+MODULE_AUTHOR("Thomas M. Sailer, sailer@ife.ee.ethz.ch, hb9jnx@hb9w.che.eu");
+MODULE_DESCRIPTION("ES1371 AudioPCI97 Driver");
+MODULE_LICENSE("GPL");
+
+
+/* --------------------------------------------------------------------- */
+
+static struct initvol {
+        int mixch;
+        int vol;
+} initvol[] __devinitdata = {
+        { SOUND_MIXER_WRITE_LINE, 0x4040 },
+        { SOUND_MIXER_WRITE_CD, 0x4040 },
+        { MIXER_WRITE(SOUND_MIXER_VIDEO), 0x4040 },
+        { SOUND_MIXER_WRITE_LINE1, 0x4040 },
+        { SOUND_MIXER_WRITE_PCM, 0x4040 },
+        { SOUND_MIXER_WRITE_VOLUME, 0x4040 },
+        { MIXER_WRITE(SOUND_MIXER_PHONEOUT), 0x4040 },
+        { SOUND_MIXER_WRITE_OGAIN, 0x4040 },
+        { MIXER_WRITE(SOUND_MIXER_PHONEIN), 0x4040 },
+        { SOUND_MIXER_WRITE_SPEAKER, 0x4040 },
+        { SOUND_MIXER_WRITE_MIC, 0x4040 },
+        { SOUND_MIXER_WRITE_RECLEV, 0x4040 },
+        { SOUND_MIXER_WRITE_IGAIN, 0x4040 }
+};
+
+static struct
+{
+        short svid, sdid;
+} amplifier_needed[] = 
+{
+        { 0x107B, 0x2150 },             /* Gateway Solo 2150 */
+        { 0x13BD, 0x100C },             /* Mebius PC-MJ100V */
+        { 0x1102, 0x5938 },             /* Targa Xtender 300 */
+        { 0x1102, 0x8938 },             /* IPC notebook */
+        { PCI_ANY_ID, PCI_ANY_ID }
+};
+
+static int __devinit es1371_probe(struct pci_dev *pcidev, const struct pci_device_id *pciid)
+{
+        struct es1371_state *s;
+        struct gameport *gp;
+        mm_segment_t fs;
+        int i, gpio, val, res = -1;
+        int idx;
+        unsigned long tmo;
+        signed long tmo2;
+        unsigned int cssr;
+
+        if ((res=pci_enable_device(pcidev)))
+                return res;
+
+        if (!(pci_resource_flags(pcidev, 0) & IORESOURCE_IO))
+                return -ENODEV;
+        if (pcidev->irq == 0) 
+                return -ENODEV;
+        i = pci_set_dma_mask(pcidev, 0xffffffff);
+        if (i) {
+                printk(KERN_WARNING "es1371: architecture does not support 32bit PCI busmaster DMA\n");
+                return i;
+        }
+        if (!(s = kmalloc(sizeof(struct es1371_state), GFP_KERNEL))) {
+                printk(KERN_WARNING PFX "out of memory\n");
+                return -ENOMEM;
+        }
+        memset(s, 0, sizeof(struct es1371_state));
+        
+        s->codec = ac97_alloc_codec();
+        if(s->codec == NULL)
+                goto err_codec;
+                
+        init_waitqueue_head(&s->dma_adc.wait);
+        init_waitqueue_head(&s->dma_dac1.wait);
+        init_waitqueue_head(&s->dma_dac2.wait);
+        init_waitqueue_head(&s->open_wait);
+        init_waitqueue_head(&s->midi.iwait);
+        init_waitqueue_head(&s->midi.owait);
+        init_MUTEX(&s->open_sem);
+        spin_lock_init(&s->lock);
+        s->magic = ES1371_MAGIC;
+        s->dev = pcidev;
+        s->io = pci_resource_start(pcidev, 0);
+        s->irq = pcidev->irq;
+        s->vendor = pcidev->vendor;
+        s->device = pcidev->device;
+        pci_read_config_byte(pcidev, PCI_REVISION_ID, &s->rev);
+        s->codec->private_data = s;
+        s->codec->id = 0;
+        s->codec->codec_read = rdcodec;
+        s->codec->codec_write = wrcodec;
+        printk(KERN_INFO PFX "found chip, vendor id 0x%04x device id 0x%04x revision 0x%02x\n",
+               s->vendor, s->device, s->rev);
+        if (!request_region(s->io, ES1371_EXTENT, "es1371")) {
+                printk(KERN_ERR PFX "io ports %#lx-%#lx in use\n", s->io, s->io+ES1371_EXTENT-1);
+                res = -EBUSY;
+                goto err_region;
+        }
+        if ((res=request_irq(s->irq, es1371_interrupt, SA_SHIRQ, "es1371",s))) {
+                printk(KERN_ERR PFX "irq %u in use\n", s->irq);
+                goto err_irq;
+        }
+        printk(KERN_INFO PFX "found es1371 rev %d at io %#lx irq %u\n",
+               s->rev, s->io, s->irq);
+        /* register devices */
+        if ((res=(s->dev_audio = register_sound_dsp(&es1371_audio_fops,-1)))<0)
+                goto err_dev1;
+        if ((res=(s->codec->dev_mixer = register_sound_mixer(&es1371_mixer_fops, -1))) < 0)
+                goto err_dev2;
+        if ((res=(s->dev_dac = register_sound_dsp(&es1371_dac_fops, -1))) < 0)
+                goto err_dev3;
+        if ((res=(s->dev_midi = register_sound_midi(&es1371_midi_fops, -1)))<0 )
+                goto err_dev4;
+#ifdef ES1371_DEBUG
+        /* initialize the debug proc device */
+        s->ps = create_proc_read_entry("es1371",0,NULL,proc_es1371_dump,NULL);
+#endif /* ES1371_DEBUG */
+        
+        /* initialize codec registers */
+        s->ctrl = 0;
+
+        /* Check amplifier requirements */
+        
+        if (amplifier[devindex])
+                s->ctrl |= CTRL_GPIO_OUT0;
+        else for(idx = 0; amplifier_needed[idx].svid != PCI_ANY_ID; idx++)
+        {
+                if(pcidev->subsystem_vendor == amplifier_needed[idx].svid &&
+                   pcidev->subsystem_device == amplifier_needed[idx].sdid)
+                {
+                        s->ctrl |= CTRL_GPIO_OUT0;   /* turn internal amplifier on */
+                        printk(KERN_INFO PFX "Enabling internal amplifier.\n");
+                }
+        }
+
+        for (gpio = 0x218; gpio >= 0x200; gpio -= 0x08)
+                if (request_region(gpio, JOY_EXTENT, "es1371"))
+                        break;
+
+        if (gpio < 0x200) {
+                printk(KERN_ERR PFX "no free joystick address found\n");
+        } else if (!(s->gameport = gp = gameport_allocate_port())) {
+                printk(KERN_ERR PFX "can not allocate memory for gameport\n");
+                release_region(gpio, JOY_EXTENT);
+        } else {
+                gameport_set_name(gp, "ESS1371 Gameport");
+                gameport_set_phys(gp, "isa%04x/gameport0", gpio);
+                gp->dev.parent = &s->dev->dev;
+                gp->io = gpio;
+                s->ctrl |= CTRL_JYSTK_EN | (((gpio >> 3) & CTRL_JOY_MASK) << CTRL_JOY_SHIFT);
+        }
+
+        s->sctrl = 0;
+        cssr = 0;
+        s->spdif_volume = -1;
+        /* check to see if s/pdif mode is being requested */
+        if (spdif[devindex]) {
+                if (s->rev >= 4) {
+                        printk(KERN_INFO PFX "enabling S/PDIF output\n");
+                        s->spdif_volume = 0;
+                        cssr |= STAT_EN_SPDIF;
+                        s->ctrl |= CTRL_SPDIFEN_B;
+                        if (nomix[devindex]) /* don't mix analog inputs to s/pdif output */
+                                s->ctrl |= CTRL_RECEN_B;
+                } else {
+                        printk(KERN_ERR PFX "revision %d does not support S/PDIF\n", s->rev);
+                }
+        }
+        /* initialize the chips */
+        outl(s->ctrl, s->io+ES1371_REG_CONTROL);
+        outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
+        outl(LEGACY_JFAST, s->io+ES1371_REG_LEGACY);
+        pci_set_master(pcidev);  /* enable bus mastering */
+        /* if we are a 5880 turn on the AC97 */
+        if (s->vendor == PCI_VENDOR_ID_ENSONIQ &&
+            ((s->device == PCI_DEVICE_ID_ENSONIQ_CT5880 && s->rev >= CT5880REV_CT5880_C) || 
+             (s->device == PCI_DEVICE_ID_ENSONIQ_ES1371 && s->rev == ES1371REV_CT5880_A) || 
+             (s->device == PCI_DEVICE_ID_ENSONIQ_ES1371 && s->rev == ES1371REV_ES1373_8))) { 
+                cssr |= CSTAT_5880_AC97_RST;
+                outl(cssr, s->io+ES1371_REG_STATUS);
+                /* need to delay around 20ms(bleech) to give
+                   some CODECs enough time to wakeup */
+                tmo = jiffies + (HZ / 50) + 1;
+                for (;;) {
+                        tmo2 = tmo - jiffies;
+                        if (tmo2 <= 0)
+                                break;
+                        schedule_timeout(tmo2);
+                }
+        }
+        /* AC97 warm reset to start the bitclk */
+        outl(s->ctrl | CTRL_SYNCRES, s->io+ES1371_REG_CONTROL);
+        udelay(2);
+        outl(s->ctrl, s->io+ES1371_REG_CONTROL);
+        /* init the sample rate converter */
+        src_init(s);
+        /* codec init */
+        if (!ac97_probe_codec(s->codec)) {
+                res = -ENODEV;
+                goto err_gp;
+        }
+        /* set default values */
+
+        fs = get_fs();
+        set_fs(KERNEL_DS);
+        val = SOUND_MASK_LINE;
+        mixdev_ioctl(s->codec, SOUND_MIXER_WRITE_RECSRC, (unsigned long)&val);
+        for (i = 0; i < sizeof(initvol)/sizeof(initvol[0]); i++) {
+                val = initvol[i].vol;
+                mixdev_ioctl(s->codec, initvol[i].mixch, (unsigned long)&val);
+        }
+        /* mute master and PCM when in S/PDIF mode */
+        if (s->spdif_volume != -1) {
+                val = 0x0000;
+                s->codec->mixer_ioctl(s->codec, SOUND_MIXER_WRITE_VOLUME, (unsigned long)&val);
+                s->codec->mixer_ioctl(s->codec, SOUND_MIXER_WRITE_PCM, (unsigned long)&val);
+        }
+        set_fs(fs);
+        /* turn on S/PDIF output driver if requested */
+        outl(cssr, s->io+ES1371_REG_STATUS);
+
+        /* register gameport */
+        if (s->gameport)
+                gameport_register_port(s->gameport);
+
+        /* store it in the driver field */
+        pci_set_drvdata(pcidev, s);
+        /* put it into driver list */
+        list_add_tail(&s->devs, &devs);
+        /* increment devindex */
+        if (devindex < NR_DEVICE-1)
+                devindex++;
+        return 0;
+
+ err_gp:
+        if (s->gameport) {
+                release_region(s->gameport->io, JOY_EXTENT);
+                gameport_free_port(s->gameport);
+        }
+#ifdef ES1371_DEBUG
+        if (s->ps)
+                remove_proc_entry("es1371", NULL);
+#endif
+        unregister_sound_midi(s->dev_midi);
+ err_dev4:
+        unregister_sound_dsp(s->dev_dac);
+ err_dev3:
+        unregister_sound_mixer(s->codec->dev_mixer);
+ err_dev2:
+        unregister_sound_dsp(s->dev_audio);
+ err_dev1:
+        printk(KERN_ERR PFX "cannot register misc device\n");
+        free_irq(s->irq, s);
+ err_irq:
+        release_region(s->io, ES1371_EXTENT);
+ err_region:
+ err_codec:
+        ac97_release_codec(s->codec);
+        kfree(s);
+        return res;
+}
+
+static void __devexit es1371_remove(struct pci_dev *dev)
+{
+        struct es1371_state *s = pci_get_drvdata(dev);
+
+        if (!s)
+                return;
+        list_del(&s->devs);
+#ifdef ES1371_DEBUG
+        if (s->ps)
+                remove_proc_entry("es1371", NULL);
+#endif /* ES1371_DEBUG */
+        outl(0, s->io+ES1371_REG_CONTROL); /* switch everything off */
+        outl(0, s->io+ES1371_REG_SERIAL_CONTROL); /* clear serial interrupts */
+        synchronize_irq(s->irq);
+        free_irq(s->irq, s);
+        if (s->gameport) {
+                int gpio = s->gameport->io;
+                gameport_unregister_port(s->gameport);
+                release_region(gpio, JOY_EXTENT);
+        }
+        release_region(s->io, ES1371_EXTENT);
+        unregister_sound_dsp(s->dev_audio);
+        unregister_sound_mixer(s->codec->dev_mixer);
+        unregister_sound_dsp(s->dev_dac);
+        unregister_sound_midi(s->dev_midi);
+        ac97_release_codec(s->codec);
+        kfree(s);
+        pci_set_drvdata(dev, NULL);
+}
+
+static struct pci_device_id id_table[] = {
+        { PCI_VENDOR_ID_ENSONIQ, PCI_DEVICE_ID_ENSONIQ_ES1371, PCI_ANY_ID, PCI_ANY_ID, 0, 0 },
+        { PCI_VENDOR_ID_ENSONIQ, PCI_DEVICE_ID_ENSONIQ_CT5880, PCI_ANY_ID, PCI_ANY_ID, 0, 0 },
+        { PCI_VENDOR_ID_ECTIVA, PCI_DEVICE_ID_ECTIVA_EV1938, PCI_ANY_ID, PCI_ANY_ID, 0, 0 },
+        { 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, id_table);
+
+static struct pci_driver es1371_driver = {
+        .name           = "es1371",
+        .id_table       = id_table,
+        .probe          = es1371_probe,
+        .remove         = __devexit_p(es1371_remove),
+};
+
+static int __init init_es1371(void)
+{
+        printk(KERN_INFO PFX "version v0.32 time " __TIME__ " " __DATE__ "\n");
+        return pci_module_init(&es1371_driver);
+}
+
+static void __exit cleanup_es1371(void)
+{
+        printk(KERN_INFO PFX "unloading\n");
+        pci_unregister_driver(&es1371_driver);
+}
+
+module_init(init_es1371);
+module_exit(cleanup_es1371);
+
+/* --------------------------------------------------------------------- */
+
+#ifndef MODULE
+
+/* format is: es1371=[spdif,[nomix,[amplifier]]] */
+
+static int __init es1371_setup(char *str)
+{
+        static unsigned __initdata nr_dev = 0;
+
+        if (nr_dev >= NR_DEVICE)
+                return 0;
+
+        (void)
+        ((get_option(&str, &spdif[nr_dev]) == 2)
+         && (get_option(&str, &nomix[nr_dev]) == 2)
+         && (get_option(&str, &amplifier[nr_dev])));
+
+        nr_dev++;
+        return 1;
+}
+
+__setup("es1371=", es1371_setup);
+
+#endif /* MODULE */