ALSA: hda - Add more register bits definitions

Added some missing register bits definitions to reduce magic numbers.
Also renamed some to follow the names on the datasheet.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 26 insertions, 17 deletions

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 31a695e6e37d..f63bc6510e0f 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -138,14 +138,23 @@ MODULE_DESCRIPTION("Intel HDA driver");
  * registers
  */
 #define ICH6_REG_GCAP                   0x00
+#define   ICH6_GCAP_64OK        (1 << 0)   /* 64bit address support */
+#define   ICH6_GCAP_NSDO        (3 << 1)   /* # of serial data out signals */
+#define   ICH6_GCAP_BSS         (31 << 3)  /* # of bidirectional streams */
+#define   ICH6_GCAP_ISS         (15 << 8)  /* # of input streams */
+#define   ICH6_GCAP_OSS         (15 << 12) /* # of output streams */
 #define ICH6_REG_VMIN                   0x02
 #define ICH6_REG_VMAJ                   0x03
 #define ICH6_REG_OUTPAY                 0x04
 #define ICH6_REG_INPAY                  0x06
 #define ICH6_REG_GCTL                   0x08
+#define   ICH6_GCTL_RESET       (1 << 1)   /* controller reset */
+#define   ICH6_GCTL_FCNTRL      (1 << 1)   /* flush control */
+#define   ICH6_GCTL_UNSOL       (1 << 8)   /* accept unsol. response enable */
 #define ICH6_REG_WAKEEN                 0x0c
 #define ICH6_REG_STATESTS               0x0e
 #define ICH6_REG_GSTS                   0x10
+#define   ICH6_GSTS_FSTS        (1 << 1)   /* flush status */
 #define ICH6_REG_INTCTL                 0x20
 #define ICH6_REG_INTSTS                 0x24
 #define ICH6_REG_WALCLK                 0x30
@@ -153,17 +162,27 @@ MODULE_DESCRIPTION("Intel HDA driver");
 #define ICH6_REG_CORBLBASE              0x40
 #define ICH6_REG_CORBUBASE              0x44
 #define ICH6_REG_CORBWP                 0x48
-#define ICH6_REG_CORBRP                 0x4A
+#define ICH6_REG_CORBRP                 0x4a
+#define   ICH6_CORBRP_RST       (1 << 15)  /* read pointer reset */
 #define ICH6_REG_CORBCTL                0x4c
+#define   ICH6_CORBCTL_RUN      (1 << 1)   /* enable DMA */
+#define   ICH6_CORBCTL_CMEIE    (1 << 0)   /* enable memory error irq */
 #define ICH6_REG_CORBSTS                0x4d
+#define   ICH6_CORBSTS_CMEI     (1 << 0)   /* memory error indication */
 #define ICH6_REG_CORBSIZE               0x4e
 
 #define ICH6_REG_RIRBLBASE              0x50
 #define ICH6_REG_RIRBUBASE              0x54
 #define ICH6_REG_RIRBWP                 0x58
+#define   ICH6_RIRBWP_RST       (1 << 15)  /* write pointer reset */
 #define ICH6_REG_RINTCNT                0x5a
 #define ICH6_REG_RIRBCTL                0x5c
+#define   ICH6_RBCTL_IRQ_EN     (1 << 0)   /* enable IRQ */
+#define   ICH6_RBCTL_DMA_EN     (1 << 1)   /* enable DMA */
+#define   ICH6_RBCTL_OVERRUN_EN (1 << 2)   /* enable overrun irq */
 #define ICH6_REG_RIRBSTS                0x5d
+#define   ICH6_RBSTS_IRQ        (1 << 0)   /* response irq */
+#define   ICH6_RBSTS_OVERRUN    (1 << 2)   /* overrun irq */
 #define ICH6_REG_RIRBSIZE               0x5e
 
 #define ICH6_REG_IC                     0x60
@@ -260,16 +279,6 @@ enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
 #define ICH6_INT_CTRL_EN        0x40000000 /* controller interrupt enable bit */
 #define ICH6_INT_GLOBAL_EN      0x80000000 /* global interrupt enable bit */
 
-/* GCTL unsolicited response enable bit */
-#define ICH6_GCTL_UREN          (1<<8)
-
-/* GCTL reset bit */
-#define ICH6_GCTL_RESET         (1<<0)
-
-/* CORB/RIRB control, read/write pointer */
-#define ICH6_RBCTL_DMA_EN       0x02    /* enable DMA */
-#define ICH6_RBCTL_IRQ_EN       0x01    /* enable IRQ */
-#define ICH6_RBRWP_CLR          0x8000  /* read/write pointer clear */
 /* below are so far hardcoded - should read registers in future */
 #define ICH6_MAX_CORB_ENTRIES   256
 #define ICH6_MAX_RIRB_ENTRIES   256
@@ -515,9 +524,9 @@ static void azx_init_cmd_io(struct azx *chip)
         /* set the corb write pointer to 0 */
         azx_writew(chip, CORBWP, 0);
         /* reset the corb hw read pointer */
-        azx_writew(chip, CORBRP, ICH6_RBRWP_CLR);
+        azx_writew(chip, CORBRP, ICH6_CORBRP_RST);
         /* enable corb dma */
-        azx_writeb(chip, CORBCTL, ICH6_RBCTL_DMA_EN);
+        azx_writeb(chip, CORBCTL, ICH6_CORBCTL_RUN);
 
         /* RIRB set up */
         chip->rirb.addr = chip->rb.addr + 2048;
@@ -529,7 +538,7 @@ static void azx_init_cmd_io(struct azx *chip)
         /* set the rirb size to 256 entries (ULI requires explicitly) */
         azx_writeb(chip, RIRBSIZE, 0x02);
         /* reset the rirb hw write pointer */
-        azx_writew(chip, RIRBWP, ICH6_RBRWP_CLR);
+        azx_writew(chip, RIRBWP, ICH6_RIRBWP_RST);
         /* set N=1, get RIRB response interrupt for new entry */
         azx_writew(chip, RINTCNT, 1);
         /* enable rirb dma and response irq */
@@ -796,7 +805,7 @@ static int azx_reset(struct azx *chip)
         }
 
         /* Accept unsolicited responses */
-        azx_writel(chip, GCTL, azx_readl(chip, GCTL) | ICH6_GCTL_UREN);
+        azx_writel(chip, GCTL, azx_readl(chip, GCTL) | ICH6_GCTL_UNSOL);
 
         /* detect codecs */
         if (!chip->codec_mask) {
@@ -2284,10 +2293,10 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
 
         /* ATI chips seems buggy about 64bit DMA addresses */
         if (chip->driver_type == AZX_DRIVER_ATI)
-                gcap &= ~0x01;
+                gcap &= ~ICH6_GCAP_64OK;
 
         /* allow 64bit DMA address if supported by H/W */
-        if ((gcap & 0x01) && !pci_set_dma_mask(pci, DMA_BIT_MASK(64)))
+        if ((gcap & ICH6_GCAP_64OK) && !pci_set_dma_mask(pci, DMA_BIT_MASK(64)))
                 pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(64));
         else {
                 pci_set_dma_mask(pci, DMA_BIT_MASK(32));