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| author | Jaroslav Kysela <perex@suse.cz> | 2004-04-24 20:31:21 +0200 |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2004-04-24 20:31:21 +0200 |
| commit | 8287de06b152f1655ca25c80b8db2d6fe7740692 (patch) | |
| tree | 7ce03346f6ee74130dc809cab5ebd15919669d60 /sound | |
| parent | 17e0e8c035594de49caa08593b2b1ba88648c28d (diff) | |
| download | history-8287de06b152f1655ca25c80b8db2d6fe7740692.tar.gz | |
ALSA CVS update - Jaroslav Kysela <perex@suse.cz>
AC97 Codec Core
patch_sigmatel_stac9758
- initialize with default values from datasheet
- apply old initialization only for Gateway M675 notebook
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/pci/ac97/ac97_patch.c | 36 |
1 files changed, 28 insertions, 8 deletions
diff --git a/sound/pci/ac97/ac97_patch.c b/sound/pci/ac97/ac97_patch.c index 6c1efbfa185634..5761c156f3e649 100644 --- a/sound/pci/ac97/ac97_patch.c +++ b/sound/pci/ac97/ac97_patch.c @@ -449,16 +449,36 @@ int patch_sigmatel_stac9756(ac97_t * ac97) int patch_sigmatel_stac9758(ac97_t * ac97) { + static unsigned short regs[4] = { + AC97_SIGMATEL_OUTSEL, + AC97_SIGMATEL_IOMISC, + AC97_SIGMATEL_INSEL, + AC97_SIGMATEL_VARIOUS + }; + static unsigned short def_regs[4] = { + /* OUTSEL */ 0xd794, + /* IOMISC */ 0x2001, + /* INSEL */ 0x0201, + /* VARIOUS */ 0x0000 + }; + static unsigned short m675_regs[4] = { + /* OUTSEL */ 0x9040, + /* IOMISC */ 0x2102, + /* INSEL */ 0x0203, + /* VARIOUS */ 0x0001 + }; + unsigned short *pregs = def_regs; + int i; + + /* Gateway M675 notebook */ + if (ac97->pci->subsystem_vendor == 0x107b && + ac97->pci->subsystem_device == 0x0601) + pregs = m675_regs; + // patch for SigmaTel ac97->build_ops = &patch_sigmatel_stac9700_ops; - // turn on stereo speaker, headphone and line-out - snd_ac97_write_cache(ac97, AC97_SIGMATEL_OUTSEL, 0x9040); - // headphone select and boost - snd_ac97_write_cache(ac97, AC97_SIGMATEL_IOMISC, 0x2102); - // enable mic - snd_ac97_write_cache(ac97, AC97_SIGMATEL_INSEL, 0x0203); - // enable stereo mic - snd_ac97_write_cache(ac97, AC97_SIGMATEL_VARIOUS, 0x0001); + for (i = 0; i < 4; i++) + snd_ac97_write_cache(ac97, regs[i], pregs[i]); return 0; } |