#define ICH6_GSTS_FSTS (1 << 1) /* flush status */
#define ICH6_REG_INTCTL 0x20
#define ICH6_REG_INTSTS 0x24
-#define ICH6_REG_WALCLK 0x30
+#define ICH6_REG_WALLCLK 0x30 /* 24Mhz source */
#define ICH6_REG_SYNC 0x34
#define ICH6_REG_CORBLBASE 0x40
#define ICH6_REG_CORBUBASE 0x44
unsigned int period_bytes; /* size of the period in bytes */
unsigned int frags; /* number for period in the play buffer */
unsigned int fifo_size; /* FIFO size */
- unsigned long start_jiffies; /* start + minimum jiffies */
- unsigned long min_jiffies; /* minimum jiffies before position is valid */
+ unsigned long start_wallclk; /* start + minimum wallclk */
+ unsigned long period_wallclk; /* wallclk for period */
void __iomem *sd_addr; /* stream descriptor pointer */
unsigned int opened :1;
unsigned int running :1;
unsigned int irq_pending :1;
- unsigned int start_flag: 1; /* stream full start flag */
/*
* For VIA:
* A flag to ensure DMA position is 0
struct azx *chip = dev_id;
struct azx_dev *azx_dev;
u32 status;
+ u8 sd_status;
int i, ok;
spin_lock(&chip->reg_lock);
for (i = 0; i < chip->num_streams; i++) {
azx_dev = &chip->azx_dev[i];
if (status & azx_dev->sd_int_sta_mask) {
+ sd_status = azx_sd_readb(azx_dev, SD_STS);
azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
- if (!azx_dev->substream || !azx_dev->running)
+ if (!azx_dev->substream || !azx_dev->running ||
+ !(sd_status & SD_INT_COMPLETE))
continue;
/* check whether this IRQ is really acceptable */
ok = azx_position_ok(chip, azx_dev);
return err;
}
- azx_dev->min_jiffies = (runtime->period_size * HZ) /
- (runtime->rate * 2);
+ /* wallclk has 24Mhz clock source */
+ azx_dev->period_wallclk = (((runtime->period_size * 24000) /
+ runtime->rate) * 1000);
azx_setup_controller(chip, azx_dev);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
azx_dev->fifo_size = azx_sd_readw(azx_dev, SD_FIFOSIZE) + 1;
if (s->pcm->card != substream->pcm->card)
continue;
azx_dev = get_azx_dev(s);
- if (rstart) {
- azx_dev->start_flag = 1;
- azx_dev->start_jiffies = jiffies + azx_dev->min_jiffies;
- }
- if (start)
+ if (start) {
+ azx_dev->start_wallclk = azx_readl(chip, WALLCLK);
+ if (!rstart)
+ azx_dev->start_wallclk -=
+ azx_dev->period_wallclk;
azx_stream_start(chip, azx_dev);
- else
+ } else {
azx_stream_stop(chip, azx_dev);
+ }
azx_dev->running = start;
}
spin_unlock(&chip->reg_lock);
*/
static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
{
+ u32 wallclk;
unsigned int pos;
int stream;
- if (azx_dev->start_flag &&
- time_before_eq(jiffies, azx_dev->start_jiffies))
+ wallclk = azx_readl(chip, WALLCLK) - azx_dev->start_wallclk;
+ if (wallclk < (azx_dev->period_wallclk * 2) / 3)
return -1; /* bogus (too early) interrupt */
- azx_dev->start_flag = 0;
stream = azx_dev->substream->stream;
pos = azx_get_position(chip, azx_dev);
chip->position_fix[stream] = POS_FIX_POSBUF;
}
- if (!bdl_pos_adj[chip->dev_index])
- return 1; /* no delayed ack */
if (WARN_ONCE(!azx_dev->period_bytes,
"hda-intel: zero azx_dev->period_bytes"))
- return 0; /* this shouldn't happen! */
- if (pos % azx_dev->period_bytes > azx_dev->period_bytes / 2)
- return 0; /* NG - it's below the period boundary */
+ return -1; /* this shouldn't happen! */
+ if (wallclk <= azx_dev->period_wallclk &&
+ pos % azx_dev->period_bytes > azx_dev->period_bytes / 2)
+ /* NG - it's below the first next period boundary */
+ return bdl_pos_adj[chip->dev_index] ? 0 : -1;
+ azx_dev->start_wallclk = wallclk;
return 1; /* OK, it's fine */
}
static void azx_irq_pending_work(struct work_struct *work)
{
struct azx *chip = container_of(work, struct azx, irq_pending_work);
- int i, pending;
+ int i, pending, ok;
if (!chip->irq_pending_warned) {
printk(KERN_WARNING
!azx_dev->substream ||
!azx_dev->running)
continue;
- if (azx_position_ok(chip, azx_dev)) {
+ ok = azx_position_ok(chip, azx_dev);
+ if (ok > 0) {
azx_dev->irq_pending = 0;
spin_unlock(&chip->reg_lock);
snd_pcm_period_elapsed(azx_dev->substream);
spin_lock(&chip->reg_lock);
+ } else if (ok < 0) {
+ pending = 0; /* too early */
} else
pending++;
}
* white/black-listing for position_fix
*/
static struct snd_pci_quirk position_fix_list[] __devinitdata = {
+ SND_PCI_QUIRK(0x1025, 0x009f, "Acer Aspire 5110", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1028, 0x01f6, "Dell Latitude 131L", POS_FIX_LPIB),
SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
- SND_PCI_QUIRK(0x1106, 0x3288, "ASUS M2V-MX SE", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
+ SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
+ SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
+ SND_PCI_QUIRK(0x1106, 0x3288, "ASUS M2V-MX SE", POS_FIX_LPIB),
+ SND_PCI_QUIRK(0x1179, 0xff10, "Toshiba A100-259", POS_FIX_LPIB),
+ SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1565, 0x820f, "Biostar Microtech", POS_FIX_LPIB),
SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
+ SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
SND_PCI_QUIRK(0x8086, 0xd601, "eMachines T5212", POS_FIX_LPIB),
{}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff