diff options
| -rw-r--r-- | sound/pci/cmipci.c | 49 |
1 files changed, 19 insertions, 30 deletions
diff --git a/sound/pci/cmipci.c b/sound/pci/cmipci.c index c51ea0ef26f9..b4f74ae9c0b6 100644 --- a/sound/pci/cmipci.c +++ b/sound/pci/cmipci.c @@ -738,48 +738,37 @@ static struct snd_pcm_hw_constraint_list hw_constraints_channels_8 = { static int set_dac_channels(struct cmipci *cm, struct cmipci_pcm *rec, int channels) { if (channels > 2) { - if (! cm->can_multi_ch) + if (!cm->can_multi_ch || !rec->ch) return -EINVAL; if (rec->fmt != 0x03) /* stereo 16bit only */ return -EINVAL; + } + if (cm->can_multi_ch) { spin_lock_irq(&cm->reg_lock); - snd_cmipci_set_bit(cm, CM_REG_LEGACY_CTRL, CM_NXCHG); - snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_XCHGDAC); - if (channels > 4) { - snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_CHB3D); - snd_cmipci_set_bit(cm, CM_REG_CHFORMAT, CM_CHB3D5C); + if (channels > 2) { + snd_cmipci_set_bit(cm, CM_REG_LEGACY_CTRL, CM_NXCHG); + snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_XCHGDAC); } else { - snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_CHB3D5C); - snd_cmipci_set_bit(cm, CM_REG_CHFORMAT, CM_CHB3D); + snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_NXCHG); + snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_XCHGDAC); } - if (channels >= 6) { + if (channels == 8) + snd_cmipci_set_bit(cm, CM_REG_EXT_MISC, CM_CHB3D8C); + else + snd_cmipci_clear_bit(cm, CM_REG_EXT_MISC, CM_CHB3D8C); + if (channels == 6) { + snd_cmipci_set_bit(cm, CM_REG_CHFORMAT, CM_CHB3D5C); snd_cmipci_set_bit(cm, CM_REG_LEGACY_CTRL, CM_CHB3D6C); - snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_ENCENTER); } else { - snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_CHB3D6C); - snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_ENCENTER); - } - if (cm->chip_version == 68) { - if (channels == 8) { - snd_cmipci_set_bit(cm, CM_REG_EXT_MISC, CM_CHB3D8C); - } else { - snd_cmipci_clear_bit(cm, CM_REG_EXT_MISC, CM_CHB3D8C); - } - } - spin_unlock_irq(&cm->reg_lock); - - } else { - if (cm->can_multi_ch) { - spin_lock_irq(&cm->reg_lock); - snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_NXCHG); - snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_CHB3D); snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_CHB3D5C); snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_CHB3D6C); - snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_ENCENTER); - snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_XCHGDAC); - spin_unlock_irq(&cm->reg_lock); } + if (channels == 4) + snd_cmipci_set_bit(cm, CM_REG_CHFORMAT, CM_CHB3D); + else + snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_CHB3D); + spin_unlock_irq(&cm->reg_lock); } return 0; } |