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path: root/sound/pci/hda/hda_intel.c
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Diffstat (limited to 'sound/pci/hda/hda_intel.c')
-rw-r--r--sound/pci/hda/hda_intel.c93
1 files changed, 68 insertions, 25 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 15107df1f49..9590ece2099 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -62,7 +62,7 @@ MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
module_param_array(model, charp, NULL, 0444);
MODULE_PARM_DESC(model, "Use the given board model.");
module_param_array(position_fix, int, NULL, 0444);
-MODULE_PARM_DESC(position_fix, "Fix DMA pointer (0 = FIFO size, 1 = none, 2 = POSBUF).");
+MODULE_PARM_DESC(position_fix, "Fix DMA pointer (0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size).");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
@@ -164,7 +164,9 @@ enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
/* max buffer size - no h/w limit, you can increase as you like */
#define AZX_MAX_BUF_SIZE (1024*1024*1024)
/* max number of PCM devics per card */
-#define AZX_MAX_PCMS 8
+#define AZX_MAX_AUDIO_PCMS 6
+#define AZX_MAX_MODEM_PCMS 2
+#define AZX_MAX_PCMS (AZX_MAX_AUDIO_PCMS + AZX_MAX_MODEM_PCMS)
/* RIRB int mask: overrun[2], response[0] */
#define RIRB_INT_RESPONSE 0x01
@@ -211,9 +213,10 @@ enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
/* position fix mode */
enum {
- POS_FIX_FIFO,
+ POS_FIX_AUTO,
POS_FIX_NONE,
- POS_FIX_POSBUF
+ POS_FIX_POSBUF,
+ POS_FIX_FIFO,
};
/* Defines for ATI HD Audio support in SB450 south bridge */
@@ -243,6 +246,7 @@ struct snd_azx_dev {
unsigned int fragsize; /* size of each period in bytes */
unsigned int frags; /* number for period in the play buffer */
unsigned int fifo_size; /* FIFO size */
+ unsigned int last_pos; /* last updated period position */
void __iomem *sd_addr; /* stream descriptor pointer */
@@ -256,6 +260,7 @@ struct snd_azx_dev {
unsigned int opened: 1;
unsigned int running: 1;
+ unsigned int period_updating: 1;
};
/* CORB/RIRB */
@@ -724,11 +729,9 @@ static void azx_init_chip(azx_t *chip)
/* initialize the codec command I/O */
azx_init_cmd_io(chip);
- if (chip->position_fix == POS_FIX_POSBUF) {
- /* program the position buffer */
- azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr);
- azx_writel(chip, DPUBASE, upper_32bit(chip->posbuf.addr));
- }
+ /* program the position buffer */
+ azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr);
+ azx_writel(chip, DPUBASE, upper_32bit(chip->posbuf.addr));
/* For ATI SB450 azalia HD audio, we need to enable snoop */
if (chip->driver_type == AZX_DRIVER_ATI) {
@@ -763,9 +766,11 @@ static irqreturn_t azx_interrupt(int irq, void* dev_id, struct pt_regs *regs)
if (status & azx_dev->sd_int_sta_mask) {
azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
if (azx_dev->substream && azx_dev->running) {
+ azx_dev->period_updating = 1;
spin_unlock(&chip->reg_lock);
snd_pcm_period_elapsed(azx_dev->substream);
spin_lock(&chip->reg_lock);
+ azx_dev->period_updating = 0;
}
}
}
@@ -866,11 +871,9 @@ static int azx_setup_controller(azx_t *chip, azx_dev_t *azx_dev)
/* upper BDL address */
azx_sd_writel(azx_dev, SD_BDLPU, upper_32bit(azx_dev->bdl_addr));
- if (chip->position_fix == POS_FIX_POSBUF) {
- /* enable the position buffer */
- if (! (azx_readl(chip, DPLBASE) & ICH6_DPLBASE_ENABLE))
- azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr | ICH6_DPLBASE_ENABLE);
- }
+ /* enable the position buffer */
+ if (! (azx_readl(chip, DPLBASE) & ICH6_DPLBASE_ENABLE))
+ azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr | ICH6_DPLBASE_ENABLE);
/* set the interrupt enable bits in the descriptor control register */
azx_sd_writel(azx_dev, SD_CTL, azx_sd_readl(azx_dev, SD_CTL) | SD_INT_MASK);
@@ -1078,6 +1081,7 @@ static int azx_pcm_prepare(snd_pcm_substream_t *substream)
azx_dev->fifo_size = azx_sd_readw(azx_dev, SD_FIFOSIZE) + 1;
else
azx_dev->fifo_size = 0;
+ azx_dev->last_pos = 0;
return hinfo->ops.prepare(hinfo, apcm->codec, azx_dev->stream_tag,
azx_dev->format_val, substream);
@@ -1133,6 +1137,26 @@ static snd_pcm_uframes_t azx_pcm_pointer(snd_pcm_substream_t *substream)
pos = azx_sd_readl(azx_dev, SD_LPIB);
if (chip->position_fix == POS_FIX_FIFO)
pos += azx_dev->fifo_size;
+ else if (chip->position_fix == POS_FIX_AUTO && azx_dev->period_updating) {
+ /* check the validity of DMA position */
+ unsigned int diff = 0;
+ azx_dev->last_pos += azx_dev->fragsize;
+ if (azx_dev->last_pos > pos)
+ diff = azx_dev->last_pos - pos;
+ if (azx_dev->last_pos >= azx_dev->bufsize) {
+ if (pos < azx_dev->fragsize)
+ diff = 0;
+ azx_dev->last_pos = 0;
+ }
+ if (diff > 0 && diff <= azx_dev->fifo_size)
+ pos += azx_dev->fifo_size;
+ else {
+ snd_printdd(KERN_INFO "hda_intel: DMA position fix %d, switching to posbuf\n", diff);
+ chip->position_fix = POS_FIX_POSBUF;
+ pos = *azx_dev->posbuf;
+ }
+ azx_dev->period_updating = 0;
+ }
}
if (pos >= azx_dev->bufsize)
pos = 0;
@@ -1203,12 +1227,33 @@ static int __devinit azx_pcm_create(azx_t *chip)
if ((err = snd_hda_build_pcms(chip->bus)) < 0)
return err;
+ /* create audio PCMs */
pcm_dev = 0;
list_for_each(p, &chip->bus->codec_list) {
codec = list_entry(p, struct hda_codec, list);
for (c = 0; c < codec->num_pcms; c++) {
+ if (codec->pcm_info[c].is_modem)
+ continue; /* create later */
+ if (pcm_dev >= AZX_MAX_AUDIO_PCMS) {
+ snd_printk(KERN_ERR SFX "Too many audio PCMs\n");
+ return -EINVAL;
+ }
+ err = create_codec_pcm(chip, codec, &codec->pcm_info[c], pcm_dev);
+ if (err < 0)
+ return err;
+ pcm_dev++;
+ }
+ }
+
+ /* create modem PCMs */
+ pcm_dev = AZX_MAX_AUDIO_PCMS;
+ list_for_each(p, &chip->bus->codec_list) {
+ codec = list_entry(p, struct hda_codec, list);
+ for (c = 0; c < codec->num_pcms; c++) {
+ if (! codec->pcm_info[c].is_modem)
+ continue; /* already created */
if (pcm_dev >= AZX_MAX_PCMS) {
- snd_printk(KERN_ERR SFX "Too many PCMs\n");
+ snd_printk(KERN_ERR SFX "Too many modem PCMs\n");
return -EINVAL;
}
err = create_codec_pcm(chip, codec, &codec->pcm_info[c], pcm_dev);
@@ -1244,8 +1289,7 @@ static int __devinit azx_init_stream(azx_t *chip)
azx_dev_t *azx_dev = &chip->azx_dev[i];
azx_dev->bdl = (u32 *)(chip->bdl.area + off);
azx_dev->bdl_addr = chip->bdl.addr + off;
- if (chip->position_fix == POS_FIX_POSBUF)
- azx_dev->posbuf = (volatile u32 *)(chip->posbuf.area + i * 8);
+ azx_dev->posbuf = (volatile u32 *)(chip->posbuf.area + i * 8);
/* offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
azx_dev->sd_addr = chip->remap_addr + (0x20 * i + 0x80);
/* int mask: SDI0=0x01, SDI1=0x02, ... SDO3=0x80 */
@@ -1358,7 +1402,7 @@ static int __devinit azx_create(snd_card_t *card, struct pci_dev *pci,
if ((err = pci_enable_device(pci)) < 0)
return err;
- chip = kcalloc(1, sizeof(*chip), GFP_KERNEL);
+ chip = kzalloc(sizeof(*chip), GFP_KERNEL);
if (NULL == chip) {
snd_printk(KERN_ERR SFX "cannot allocate chip\n");
@@ -1437,13 +1481,11 @@ static int __devinit azx_create(snd_card_t *card, struct pci_dev *pci,
snd_printk(KERN_ERR SFX "cannot allocate BDL\n");
goto errout;
}
- if (chip->position_fix == POS_FIX_POSBUF) {
- /* allocate memory for the position buffer */
- if ((err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
- chip->num_streams * 8, &chip->posbuf)) < 0) {
- snd_printk(KERN_ERR SFX "cannot allocate posbuf\n");
- goto errout;
- }
+ /* allocate memory for the position buffer */
+ if ((err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
+ chip->num_streams * 8, &chip->posbuf)) < 0) {
+ snd_printk(KERN_ERR SFX "cannot allocate posbuf\n");
+ goto errout;
}
/* allocate CORB/RIRB */
if ((err = azx_alloc_cmd_io(chip)) < 0)
@@ -1561,6 +1603,7 @@ MODULE_DEVICE_TABLE(pci, azx_ids);
/* pci_driver definition */
static struct pci_driver driver = {
.name = "HDA Intel",
+ .owner = THIS_MODULE,
.id_table = azx_ids,
.probe = azx_probe,
.remove = __devexit_p(azx_remove),
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 19:49:05 +0000