tree 57df026da13319fa608c38674e411f2d18c0de8c
parent 2eff7ec81eb586076974cb0918dffc5f4ad763d5
author Takashi Iwai <[EMAIL PROTECTED]> Thu, 30 Jun 2005 13:47:06 +0200
committer Jaroslav Kysela <[EMAIL PROTECTED]> Thu, 28 Jul 2005 12:10:04 +0200
[ALSA] Fix resume of intel8x0
Intel8x0 driver,AC97 Codec
Fix resume of intel8x0 driver. The ac97 codec didn't restore some registers
properly, and the restore of ICH4 SPDIF and SDIN settings was missing.
Signed-off-by: Takashi Iwai <[EMAIL PROTECTED]>
sound/pci/ac97/ac97_codec.c | 2 ++
sound/pci/intel8x0.c | 13 +++++++++++++
2 files changed, 15 insertions(+)
diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c
--- a/sound/pci/ac97/ac97_codec.c
+++ b/sound/pci/ac97/ac97_codec.c
@@ -367,6 +367,7 @@ int snd_ac97_update(ac97_t *ac97, unsign
ac97->regs[reg] = value;
ac97->bus->ops->write(ac97, reg, value);
}
+ set_bit(reg, ac97->reg_accessed);
up(&ac97->reg_mutex);
return change;
}
@@ -410,6 +411,7 @@ int snd_ac97_update_bits_nolock(ac97_t *
ac97->regs[reg] = new;
ac97->bus->ops->write(ac97, reg, new);
}
+ set_bit(reg, ac97->reg_accessed);
return change;
}
diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c
--- a/sound/pci/intel8x0.c
+++ b/sound/pci/intel8x0.c
@@ -424,6 +424,7 @@ struct _snd_intel8x0 {
unsigned xbox: 1; /* workaround for Xbox AC'97 detection
*/
int spdif_idx; /* SPDIF BAR index; *_SPBAR or -1 if use PCMOUT */
+ unsigned int sdm_saved; /* SDM reg value */
ac97_bus_t *ac97_bus;
ac97_t *ac97[3];
@@ -2373,6 +2374,8 @@ static int intel8x0_suspend(snd_card_t *
for (i = 0; i < 3; i++)
if (chip->ac97[i])
snd_ac97_suspend(chip->ac97[i]);
+ if (chip->device_type == DEVICE_INTEL_ICH4)
+ chip->sdm_saved = igetbyte(chip, ICHREG(SDM));
pci_disable_device(chip->pci);
return 0;
}
@@ -2386,6 +2389,16 @@ static int intel8x0_resume(snd_card_t *c
pci_set_master(chip->pci);
snd_intel8x0_chip_init(chip, 0);
+ /* re-initialize mixer stuff */
+ if (chip->device_type == DEVICE_INTEL_ICH4) {
+ /* enable separate SDINs for ICH4 */
+ iputbyte(chip, ICHREG(SDM), chip->sdm_saved);
+ /* use slot 10/11 for SPDIF */
+ iputdword(chip, ICHREG(GLOB_CNT),
+ (igetdword(chip, ICHREG(GLOB_CNT)) &
~ICH_PCM_SPDIF_MASK) |
+ ICH_PCM_SPDIF_1011);
+ }
+
/* refill nocache */
if (chip->fix_nocache)
fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 1);
-
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