diff options
| author | Takashi Iwai <tiwai@suse.de> | 2008-02-18 14:23:13 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2008-04-24 14:00:11 +0400 |
| commit | 4235a31784f59c9be5ff71534743c055091f9735 (patch) | |
| tree | 87080055fed0c3f25a3c816c182a6db5739430b6 /sound/pci/intel8x0.c | |
| parent | 2eef1258e54722b1c4efac6e5760d2153f96c4b4 (diff) | |
| download | linux-4235a31784f59c9be5ff71534743c055091f9735.tar.xz | |
[ALSA] intel8x0 - Add support of 8 channel sound
Added the support of 8 channel sound for codecs that are known to work.
So far, only ALC850 is marked as a 8ch-support codec.
This fix is a modified version of the patch on ALSA BTS#2097 by
Martin Ellis:
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=2097
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/intel8x0.c')
| -rw-r--r-- | sound/pci/intel8x0.c | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c index c52abd0bf22e..07782ba9c74d 100644 --- a/sound/pci/intel8x0.c +++ b/sound/pci/intel8x0.c @@ -155,7 +155,8 @@ DEFINE_REGSET(SP, 0x60); /* SPDIF out */ #define ICH_PCM_SPDIF_69 0x80000000 /* s/pdif pcm on slots 6&9 */ #define ICH_PCM_SPDIF_1011 0xc0000000 /* s/pdif pcm on slots 10&11 */ #define ICH_PCM_20BIT 0x00400000 /* 20-bit samples (ICH4) */ -#define ICH_PCM_246_MASK 0x00300000 /* 6 channels (not all chips) */ +#define ICH_PCM_246_MASK 0x00300000 /* chan mask (not all chips) */ +#define ICH_PCM_8 0x00300000 /* 8 channels (not all chips) */ #define ICH_PCM_6 0x00200000 /* 6 channels (not all chips) */ #define ICH_PCM_4 0x00100000 /* 4 channels (not all chips) */ #define ICH_PCM_2 0x00000000 /* 2 channels (stereo) */ @@ -382,6 +383,7 @@ struct intel8x0 { unsigned multi4: 1, multi6: 1, + multi8 :1, dra: 1, smp20bit: 1; unsigned in_ac97_init: 1, @@ -997,6 +999,8 @@ static void snd_intel8x0_setup_pcm_out(struct intel8x0 *chip, cnt |= ICH_PCM_4; else if (runtime->channels == 6) cnt |= ICH_PCM_6; + else if (runtime->channels == 8) + cnt |= ICH_PCM_8; if (chip->device_type == DEVICE_NFORCE) { /* reset to 2ch once to keep the 6 channel data in alignment, * to start from Front Left always @@ -1106,6 +1110,16 @@ static struct snd_pcm_hw_constraint_list hw_constraints_channels6 = { .mask = 0, }; +static unsigned int channels8[] = { + 2, 4, 6, 8, +}; + +static struct snd_pcm_hw_constraint_list hw_constraints_channels8 = { + .count = ARRAY_SIZE(channels8), + .list = channels8, + .mask = 0, +}; + static int snd_intel8x0_pcm_open(struct snd_pcm_substream *substream, struct ichdev *ichdev) { struct intel8x0 *chip = snd_pcm_substream_chip(substream); @@ -1136,7 +1150,12 @@ static int snd_intel8x0_playback_open(struct snd_pcm_substream *substream) if (err < 0) return err; - if (chip->multi6) { + if (chip->multi8) { + runtime->hw.channels_max = 8; + snd_pcm_hw_constraint_list(runtime, 0, + SNDRV_PCM_HW_PARAM_CHANNELS, + &hw_constraints_channels8); + } else if (chip->multi6) { runtime->hw.channels_max = 6; snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, &hw_constraints_channels6); @@ -2203,8 +2222,11 @@ static int __devinit snd_intel8x0_mixer(struct intel8x0 *chip, int ac97_clock, } if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_PCM_SLEFT)) { chip->multi4 = 1; - if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_LFE)) + if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_LFE)) { chip->multi6 = 1; + if (chip->ac97[0]->flags & AC97_HAS_8CH) + chip->multi8 = 1; + } } if (pbus->pcms[0].r[1].rslots[0]) { chip->dra = 1; |