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| author | Dan Carpenter <error27@gmail.com> | 2006-11-20 16:35:18 +0100 |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2007-02-09 09:01:38 +0100 |
| commit | 14e1d357e4fed9577d349952b71ec7d81aad710c (patch) | |
| tree | 64214a31f820e4f78f5d3cc2226bda88cc06d98b /sound/pci/atiixp.c | |
| parent | ddc2cec4dbec157ac7426111205d59ac28f887ee (diff) | |
| download | linux-14e1d357e4fed9577d349952b71ec7d81aad710c.tar.gz linux-14e1d357e4fed9577d349952b71ec7d81aad710c.tar.bz2 linux-14e1d357e4fed9577d349952b71ec7d81aad710c.zip | |
[ALSA] atiixp - Add a parameter ac97_quirk
Add an option to specify the AC'97 codec instead of
probing. This is a fix for bugzilla #7467.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Diffstat (limited to 'sound/pci/atiixp.c')
| -rw-r--r-- | sound/pci/atiixp.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/sound/pci/atiixp.c b/sound/pci/atiixp.c index 86710df71a8e..92df811d695d 100644 --- a/sound/pci/atiixp.c +++ b/sound/pci/atiixp.c @@ -45,6 +45,7 @@ static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */ static int ac97_clock = 48000; static char *ac97_quirk; static int spdif_aclink = 1; +static int ac97_codec = -1; module_param(index, int, 0444); MODULE_PARM_DESC(index, "Index value for ATI IXP controller."); @@ -54,6 +55,8 @@ module_param(ac97_clock, int, 0444); MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz)."); module_param(ac97_quirk, charp, 0444); MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware."); +module_param(ac97_codec, int, 0444); +MODULE_PARM_DESC(ac97_codec, "Specify codec instead of probing."); module_param(spdif_aclink, bool, 0444); MODULE_PARM_DESC(spdif_aclink, "S/PDIF over AC-link."); @@ -293,6 +296,22 @@ static struct pci_device_id snd_atiixp_ids[] = { MODULE_DEVICE_TABLE(pci, snd_atiixp_ids); +struct atiixp_quirk { + unsigned short subvendor; + unsigned short subdevice; + const char *name; + int ac97_codec; +}; + +static struct atiixp_quirk atiixp_quirks[] __devinitdata = { + { + .subvendor = 0x15bd, + .subdevice = 0x3100, + .name = "DFI RS482", + .ac97_codec = 0, + }, + { .subvendor = 0 } /* terminator */ +}; /* * lowlevel functions @@ -553,11 +572,37 @@ static int snd_atiixp_aclink_down(struct atiixp *chip) ATI_REG_ISR_CODEC2_NOT_READY) #define CODEC_CHECK_BITS (ALL_CODEC_NOT_READY|ATI_REG_ISR_NEW_FRAME) +static int ac97_probing_bugs(struct pci_dev *pci) +{ + int i = 0; + + while (atiixp_quirks[i].subvendor) { + if (pci->subsystem_vendor == atiixp_quirks[i].subvendor && + pci->subsystem_device == atiixp_quirks[i].subdevice) { + printk(KERN_INFO "Atiixp quirk for %s. " + "Forcing codec %d\n", atiixp_quirks[i].name, + atiixp_quirks[i].ac97_codec); + return atiixp_quirks[i].ac97_codec; + } + i++; + } + /* this hardware doesn't need workarounds. Probe for codec */ + return -1; +} + static int snd_atiixp_codec_detect(struct atiixp *chip) { int timeout; chip->codec_not_ready_bits = 0; + if (ac97_codec == -1) + ac97_codec = ac97_probing_bugs(chip->pci); + if (ac97_codec >= 0) { + chip->codec_not_ready_bits |= + CODEC_CHECK_BITS ^ (1 << (ac97_codec + 10)); + return 0; + } + atiixp_write(chip, IER, CODEC_CHECK_BITS); /* wait for the interrupts */ timeout = 50; |