diff options
| -rw-r--r-- | sound/pci/intel8x0.c | 44 |
1 files changed, 41 insertions, 3 deletions
diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c index 73ad5899536..c8f51489684 100644 --- a/sound/pci/intel8x0.c +++ b/sound/pci/intel8x0.c @@ -83,7 +83,7 @@ MODULE_PARM_DESC(index, "Index value for Intel i8x0 soundcard."); module_param(id, charp, 0444); MODULE_PARM_DESC(id, "ID string for Intel i8x0 soundcard."); module_param(ac97_clock, int, 0444); -MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = auto-detect)."); +MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = whitelist + auto-detect, 1 = force autodetect)."); module_param(ac97_quirk, charp, 0444); MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware."); module_param(buggy_semaphore, bool, 0444); @@ -2692,6 +2692,38 @@ static void __devinit intel8x0_measure_ac97_clock(struct intel8x0 *chip) snd_ac97_update_power(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 0); } +struct intel8x0_clock_list { + unsigned short subvendor; + unsigned short subdevice; + unsigned int rate; +}; + +static struct intel8x0_clock_list intel8x0_clock_list[] __devinitdata = { + { 0x0e11, 0x008a, 41000 }, /* Analog Devices AD1885 */ + { 0x1028, 0x00be, 44100 }, /* Analog Devices AD1885 */ + { 0x1028, 0x0177, 48000 }, /* Analog Devices AD1980 */ + { 0x1043, 0x80f3, 48000 }, /* Analog Devices AD1985 */ + { 0x0000, 0x0000, 00000 } /* terminator */ +}; + +static int __devinit intel8x0_in_clock_list(struct intel8x0 *chip) +{ + struct pci_dev *pci = chip->pci; + struct intel8x0_clock_list *wl; + + for (wl = intel8x0_clock_list; wl->subvendor; wl++) { + if (wl->subvendor == pci->subsystem_vendor && + wl->subdevice == pci->subsystem_device) { + printk(KERN_INFO "intel8x0: white list rate for %04x:%04x is %i\n", + pci->subsystem_vendor, + pci->subsystem_device, wl->rate); + chip->ac97_bus->clock = wl->rate; + return 1; + } + } + return 0; +} + #ifdef CONFIG_PROC_FS static void snd_intel8x0_proc_read(struct snd_info_entry * entry, struct snd_info_buffer *buffer) @@ -3087,8 +3119,14 @@ static int __devinit snd_intel8x0_probe(struct pci_dev *pci, "%s with %s at irq %i", card->shortname, snd_ac97_get_short_name(chip->ac97[0]), chip->irq); - if (! ac97_clock) - intel8x0_measure_ac97_clock(chip); + if (ac97_clock == 0 || ac97_clock == 1) { + if (ac97_clock == 0) { + if (intel8x0_in_clock_list(chip) == 0) + intel8x0_measure_ac97_clock(chip); + } else { + intel8x0_measure_ac97_clock(chip); + } + } if ((err = snd_card_register(card)) < 0) { snd_card_free(card); |