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authorRussell King <rmk+kernel@arm.linux.org.uk>2009-12-18 12:48:45 -0500
committerTakashi Iwai <tiwai@suse.de>2009-12-18 14:31:01 -0500
commita08d56583f6b87e2981d1b6e9ee891bdc741cc44 (patch)
tree4fdc8eeaee76f0bb4d7f78b1e3d36717142ab28c /sound
parentd3aee7996c30f928bbbbfd0994148e35d2e83084 (diff)
ALSA: AACI: add double-rate support
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/arm/aaci.c17
1 files changed, 15 insertions, 2 deletions
diff --git a/sound/arm/aaci.c b/sound/arm/aaci.c
index b88bbded2f4f..b377370af2d7 100644
--- a/sound/arm/aaci.c
+++ b/sound/arm/aaci.c
@@ -366,6 +366,10 @@ static int __aaci_pcm_open(struct aaci *aaci,
366 runtime->hw.rates = aacirun->pcm->rates; 366 runtime->hw.rates = aacirun->pcm->rates;
367 snd_pcm_limit_hw_rates(runtime); 367 snd_pcm_limit_hw_rates(runtime);
368 368
369 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
370 aacirun->pcm->r[1].slots)
371 snd_ac97_pcm_double_rate_rules(runtime);
372
369 /* 373 /*
370 * FIXME: ALSA specifies fifo_size in bytes. If we're in normal 374 * FIXME: ALSA specifies fifo_size in bytes. If we're in normal
371 * mode, each 32-bit word contains one sample. If we're in 375 * mode, each 32-bit word contains one sample. If we're in
@@ -439,9 +443,12 @@ static int aaci_pcm_hw_params(struct snd_pcm_substream *substream,
439 err = snd_pcm_lib_malloc_pages(substream, 443 err = snd_pcm_lib_malloc_pages(substream,
440 params_buffer_bytes(params)); 444 params_buffer_bytes(params));
441 if (err >= 0) { 445 if (err >= 0) {
442 err = snd_ac97_pcm_open(aacirun->pcm, params_rate(params), 446 unsigned int rate = params_rate(params);
447 int dbl = rate > 48000;
448
449 err = snd_ac97_pcm_open(aacirun->pcm, rate,
443 params_channels(params), 450 params_channels(params),
444 aacirun->pcm->r[0].slots); 451 aacirun->pcm->r[dbl].slots);
445 452
446 aacirun->pcm_open = err == 0; 453 aacirun->pcm_open = err == 0;
447 aacirun->cr = CR_FEN | CR_COMPACT | CR_SZ16; 454 aacirun->cr = CR_FEN | CR_COMPACT | CR_SZ16;
@@ -808,6 +815,12 @@ static struct ac97_pcm ac97_defs[] __devinitdata = {
808 (1 << AC97_SLOT_PCM_SRIGHT) | 815 (1 << AC97_SLOT_PCM_SRIGHT) |
809 (1 << AC97_SLOT_LFE), 816 (1 << AC97_SLOT_LFE),
810 }, 817 },
818 [1] = {
819 .slots = (1 << AC97_SLOT_PCM_LEFT) |
820 (1 << AC97_SLOT_PCM_RIGHT) |
821 (1 << AC97_SLOT_PCM_LEFT_0) |
822 (1 << AC97_SLOT_PCM_RIGHT_0),
823 },
811 }, 824 },
812 }, 825 },
813 [1] = { /* PCM in */ 826 [1] = { /* PCM in */