diff options
| author | Takashi Iwai <tiwai@suse.de> | 2005-08-03 16:02:47 +0400 |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2005-08-30 10:43:43 +0400 |
| commit | 5b8f7f7329289fa3b74ef8cdbaa9d2929787d3e6 (patch) | |
| tree | a90354362cd044d3ef6b2e272eb73124b973e3f3 /sound/isa/ad1816a/ad1816a_lib.c | |
| parent | 5549d54992391d81a8cbfbaac45a958876fbc9cb (diff) | |
| download | linux-5b8f7f7329289fa3b74ef8cdbaa9d2929787d3e6.tar.xz | |
[ALSA] ad1816a - Add clockfreq module option
Documentation,AD1816A driver
Added clockfreq module option for the card with a different clock frequency
than 33kHz.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/isa/ad1816a/ad1816a_lib.c')
| -rw-r--r-- | sound/isa/ad1816a/ad1816a_lib.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/sound/isa/ad1816a/ad1816a_lib.c b/sound/isa/ad1816a/ad1816a_lib.c index 625b2eff14a1..ae860360ecf9 100644 --- a/sound/isa/ad1816a/ad1816a_lib.c +++ b/sound/isa/ad1816a/ad1816a_lib.c @@ -234,7 +234,7 @@ static int snd_ad1816a_playback_prepare(snd_pcm_substream_t *substream) ad1816a_t *chip = snd_pcm_substream_chip(substream); unsigned long flags; snd_pcm_runtime_t *runtime = substream->runtime; - unsigned int size; + unsigned int size, rate; spin_lock_irqsave(&chip->lock, flags); @@ -245,7 +245,10 @@ static int snd_ad1816a_playback_prepare(snd_pcm_substream_t *substream) snd_dma_program(chip->dma1, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT); - snd_ad1816a_write(chip, AD1816A_PLAYBACK_SAMPLE_RATE, runtime->rate); + rate = runtime->rate; + if (chip->clock_freq) + rate = (rate * 33000) / chip->clock_freq; + snd_ad1816a_write(chip, AD1816A_PLAYBACK_SAMPLE_RATE, rate); snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG, AD1816A_FMT_ALL | AD1816A_FMT_STEREO, snd_ad1816a_get_format(chip, runtime->format, @@ -263,7 +266,7 @@ static int snd_ad1816a_capture_prepare(snd_pcm_substream_t *substream) ad1816a_t *chip = snd_pcm_substream_chip(substream); unsigned long flags; snd_pcm_runtime_t *runtime = substream->runtime; - unsigned int size; + unsigned int size, rate; spin_lock_irqsave(&chip->lock, flags); @@ -274,7 +277,10 @@ static int snd_ad1816a_capture_prepare(snd_pcm_substream_t *substream) snd_dma_program(chip->dma2, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT); - snd_ad1816a_write(chip, AD1816A_CAPTURE_SAMPLE_RATE, runtime->rate); + rate = runtime->rate; + if (chip->clock_freq) + rate = (rate * 33000) / chip->clock_freq; + snd_ad1816a_write(chip, AD1816A_CAPTURE_SAMPLE_RATE, rate); snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG, AD1816A_FMT_ALL | AD1816A_FMT_STEREO, snd_ad1816a_get_format(chip, runtime->format, |