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[ALSA] cs4281 - Fix the check of timeout in probe 

Fix the check of timeout in probe routines to work properly
reagrdless of HZ (ALSA bug#1976).

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2006-03-29 12:33:38 +02:00 committed by Jaroslav Kysela
parent e860f00047
commit 38223daa1a
1 changed files with 13 additions and 13 deletions
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26
sound/pci/cs4281.c
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@ -1416,7 +1416,7 @@ static int __devinit snd_cs4281_create(struct snd_card *card,
static int snd_cs4281_chip_init(struct cs4281 *chip)
{
unsigned int tmp;
int timeout;
unsigned long end_time;
int retry_count = 2;
/* Having EPPMC.FPDN=1 prevent proper chip initialisation */
@ -1496,7 +1496,7 @@ static int snd_cs4281_chip_init(struct cs4281 *chip)
/*
* Wait for the DLL ready signal from the clock logic.
*/
timeout = 100;
end_time = jiffies + HZ;
do {
/*
* Read the AC97 status register to see if we've seen a CODEC
@ -1504,8 +1504,8 @@ static int snd_cs4281_chip_init(struct cs4281 *chip)
*/
if (snd_cs4281_peekBA0(chip, BA0_CLKCR1) & BA0_CLKCR1_DLLRDY)
goto __ok0;
msleep(1);
} while (timeout-- > 0);
schedule_timeout_uninterruptible(1);
} while (time_after_eq(end_time, jiffies));
snd_printk(KERN_ERR "DLLRDY not seen\n");
return -EIO;
@ -1522,7 +1522,7 @@ static int snd_cs4281_chip_init(struct cs4281 *chip)
/*
* Wait for the codec ready signal from the AC97 codec.
*/
timeout = 100;
end_time = jiffies + HZ;
do {
/*
* Read the AC97 status register to see if we've seen a CODEC
@ -1530,20 +1530,20 @@ static int snd_cs4281_chip_init(struct cs4281 *chip)
*/
if (snd_cs4281_peekBA0(chip, BA0_ACSTS) & BA0_ACSTS_CRDY)
goto __ok1;
msleep(1);
} while (timeout-- > 0);
schedule_timeout_uninterruptible(1);
} while (time_after_eq(end_time, jiffies));
snd_printk(KERN_ERR "never read codec ready from AC'97 (0x%x)\n", snd_cs4281_peekBA0(chip, BA0_ACSTS));
return -EIO;
__ok1:
if (chip->dual_codec) {
timeout = 100;
end_time = jiffies + HZ;
do {
if (snd_cs4281_peekBA0(chip, BA0_ACSTS2) & BA0_ACSTS_CRDY)
goto __codec2_ok;
msleep(1);
} while (timeout-- > 0);
schedule_timeout_uninterruptible(1);
} while (time_after_eq(end_time, jiffies));
snd_printk(KERN_INFO "secondary codec doesn't respond. disable it...\n");
chip->dual_codec = 0;
__codec2_ok: ;
@ -1561,7 +1561,7 @@ static int snd_cs4281_chip_init(struct cs4281 *chip)
* the codec is pumping ADC data across the AC-link.
*/
timeout = 100;
end_time = jiffies + HZ;
do {
/*
* Read the input slot valid register and see if input slots 3
@ -1569,8 +1569,8 @@ static int snd_cs4281_chip_init(struct cs4281 *chip)
*/
if ((snd_cs4281_peekBA0(chip, BA0_ACISV) & (BA0_ACISV_SLV(3) | BA0_ACISV_SLV(4))) == (BA0_ACISV_SLV(3) | BA0_ACISV_SLV(4)))
goto __ok2;
msleep(1);
} while (timeout-- > 0);
schedule_timeout_uninterruptible(1);
} while (time_after_eq(end_time, jiffies));
if (--retry_count > 0)
goto __retry;