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| author |   James Courtier-Dutton <James@superbug.co.uk> | 2005-05-28 13:28:21 +0200 |
|---|---|---|
| committer |   Jaroslav Kysela <perex@suse.cz> | 2005-06-22 12:27:12 +0200 |
| commit | 883130b476e7f8baa608dabe52c455ac351f7c39 (patch) | |
| tree | bd252f2384b7ed8565512c77fa6f0734581b12f0 /sound | |
| parent | [ALSA] Add Mic capture support. (diff) | |
| download | linux-dev-883130b476e7f8baa608dabe52c455ac351f7c39.tar.xz linux-dev-883130b476e7f8baa608dabe52c455ac351f7c39.zip | |
[ALSA] Implement S32_LE(24bit) and 96000 capture rates etc.
CA0106 driver
Signed-off-by: James Courtier-Dutton <James@superbug.co.uk>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/pci/ca0106/ca0106_main.c | 63 |
1 files changed, 59 insertions, 4 deletions
diff --git a/sound/pci/ca0106/ca0106_main.c b/sound/pci/ca0106/ca0106_main.c index 58d9026c8ca6..1c26206b4fb9 100644 --- a/sound/pci/ca0106/ca0106_main.c +++ b/sound/pci/ca0106/ca0106_main.c @@ -216,10 +216,10 @@ static snd_pcm_hardware_t snd_ca0106_capture_hw = { SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID), - .formats = SNDRV_PCM_FMTBIT_S16_LE, - .rates = SNDRV_PCM_RATE_48000, - .rate_min = 48000, - .rate_max = 48000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE, + .rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000, + .rate_min = 44100, + .rate_max = 192000, .channels_min = 2, .channels_max = 2, .buffer_bytes_max = ((65536 - 64) * 8), @@ -607,6 +607,61 @@ static int snd_ca0106_pcm_prepare_capture(snd_pcm_substream_t *substream) snd_pcm_runtime_t *runtime = substream->runtime; ca0106_pcm_t *epcm = runtime->private_data; int channel = epcm->channel_id; + u32 hcfg_mask = HCFG_CAPTURE_S32_LE; + u32 hcfg_set = 0x00000000; + u32 hcfg; + u32 over_sampling=0x2; + u32 reg71_mask = 0x0000c000 ; /* Global. Set ADC rate. */ + u32 reg71_set = 0; + u32 reg71; + + //snd_printk("prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, buffer_size=%ld, period_size=%ld, periods=%u, frames_to_bytes=%d\n",channel, runtime->rate, runtime->format, runtime->channels, runtime->buffer_size, runtime->period_size, runtime->periods, frames_to_bytes(runtime, 1)); + //snd_printk("dma_addr=%x, dma_area=%p, table_base=%p\n",runtime->dma_addr, runtime->dma_area, table_base); + //snd_printk("dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",emu->buffer.addr, emu->buffer.area, emu->buffer.bytes); + /* reg71 controls ADC rate. */ + switch (runtime->rate) { + case 44100: + reg71_set = 0x00004000; + break; + case 48000: + reg71_set = 0; + break; + case 96000: + reg71_set = 0x00008000; + over_sampling=0xa; + break; + case 192000: + reg71_set = 0x0000c000; + over_sampling=0xa; + break; + default: + reg71_set = 0; + break; + } + /* Format is a global setting */ + /* FIXME: Only let the first channel accessed set this. */ + switch (runtime->format) { + case SNDRV_PCM_FORMAT_S16_LE: + hcfg_set = 0; + break; + case SNDRV_PCM_FORMAT_S32_LE: + hcfg_set = HCFG_CAPTURE_S32_LE; + break; + default: + hcfg_set = 0; + break; + } + hcfg = inl(emu->port + HCFG) ; + hcfg = (hcfg & ~hcfg_mask) | hcfg_set; + outl(hcfg, emu->port + HCFG); + reg71 = snd_ca0106_ptr_read(emu, 0x71, 0); + reg71 = (reg71 & ~reg71_mask) | reg71_set; + snd_ca0106_ptr_write(emu, 0x71, 0, reg71); + if (emu->details->i2c_adc == 1) { /* The SB0410 and SB0413 use I2C to control ADC. */ + snd_ca0106_i2c_write(emu, ADC_MASTER, over_sampling); /* Adjust the over sampler to better suit the capture rate. */ + } + + //printk("prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, buffer_size=%ld, period_size=%ld, frames_to_bytes=%d\n",channel, runtime->rate, runtime->format, runtime->channels, runtime->buffer_size, runtime->period_size, frames_to_bytes(runtime, 1)); snd_ca0106_ptr_write(emu, 0x13, channel, 0); snd_ca0106_ptr_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr); |