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authorJames Courtier-Dutton <James@superbug.co.uk>2005-05-04 11:26:28 -0400
committerJaroslav Kysela <perex@suse.cz>2005-05-29 04:06:13 -0400
commitc702563703b5680a7143f8ac66613d082a190ca2 (patch)
tree6281d1668c7782fc756b6ff1fb7d433fb44adc4c
parent14c7e472aa979eecc15255eec5cec2763649c599 (diff)
[ALSA] Support multiple capture rates on p16v.
EMU10K1/EMU10K2 driver The capture rate does in fact vary, but it only captures anything if the HD Capture source is set to I2S or AC97. I have not tested if the sound is actually captured from an physical input of some type or not. TODO: Get SPDIF capture working. Signed-off-by: James Courtier-Dutton <James@superbug.co.uk>
-rw-r--r--sound/pci/emu10k1/p16v.c53
1 files changed, 35 insertions, 18 deletions
diff --git a/sound/pci/emu10k1/p16v.c b/sound/pci/emu10k1/p16v.c
index 776761fe5577..13f7e62ee56b 100644
--- a/sound/pci/emu10k1/p16v.c
+++ b/sound/pci/emu10k1/p16v.c
@@ -133,25 +133,24 @@ static snd_pcm_hardware_t snd_p16v_playback_hw = {
133}; 133};
134 134
135static snd_pcm_hardware_t snd_p16v_capture_hw = { 135static snd_pcm_hardware_t snd_p16v_capture_hw = {
136 .info = (SNDRV_PCM_INFO_MMAP | 136 .info = (SNDRV_PCM_INFO_MMAP |
137 SNDRV_PCM_INFO_INTERLEAVED | 137 SNDRV_PCM_INFO_INTERLEAVED |
138 SNDRV_PCM_INFO_BLOCK_TRANSFER | 138 SNDRV_PCM_INFO_BLOCK_TRANSFER |
139 SNDRV_PCM_INFO_MMAP_VALID), 139 SNDRV_PCM_INFO_MMAP_VALID),
140 .formats = SNDRV_PCM_FMTBIT_S32_LE, 140 .formats = SNDRV_PCM_FMTBIT_S32_LE,
141 .rates = SNDRV_PCM_RATE_48000, 141 .rates = SNDRV_PCM_RATE_192000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100,
142 .rate_min = 48000, 142 .rate_min = 44100,
143 .rate_max = 48000, 143 .rate_max = 192000,
144 .channels_min = 2, 144 .channels_min = 2,
145 .channels_max = 2, 145 .channels_max = 2,
146 .buffer_bytes_max = (32*1024), 146 .buffer_bytes_max = (32*1024),
147 .period_bytes_min = 64, 147 .period_bytes_min = 64,
148 .period_bytes_max = (16*1024), 148 .period_bytes_max = (16*1024),
149 .periods_min = 2, 149 .periods_min = 2,
150 .periods_max = 2, 150 .periods_max = 2,
151 .fifo_size = 0, 151 .fifo_size = 0,
152}; 152};
153 153
154
155static void snd_p16v_pcm_free_substream(snd_pcm_runtime_t *runtime) 154static void snd_p16v_pcm_free_substream(snd_pcm_runtime_t *runtime)
156{ 155{
157 emu10k1_pcm_t *epcm = runtime->private_data; 156 emu10k1_pcm_t *epcm = runtime->private_data;
@@ -362,7 +361,25 @@ static int snd_p16v_pcm_prepare_capture(snd_pcm_substream_t *substream)
362 emu10k1_t *emu = snd_pcm_substream_chip(substream); 361 emu10k1_t *emu = snd_pcm_substream_chip(substream);
363 snd_pcm_runtime_t *runtime = substream->runtime; 362 snd_pcm_runtime_t *runtime = substream->runtime;
364 int channel = substream->pcm->device - emu->p16v_device_offset; 363 int channel = substream->pcm->device - emu->p16v_device_offset;
365 //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)); 364 u32 tmp;
365 //printk("prepare capture: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));
366 tmp = snd_emu10k1_ptr_read(emu, A_SPDIF_SAMPLERATE, channel);
367 switch (runtime->rate) {
368 case 44100:
369 snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0800);
370 break;
371 case 96000:
372 snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0400);
373 break;
374 case 192000:
375 snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0200);
376 break;
377 case 48000:
378 default:
379 snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel, (tmp & ~0x0e00) | 0x0000);
380 break;
381 }
382 /* FIXME: Check emu->buffer.size before actually writing to it. */
366 snd_emu10k1_ptr20_write(emu, 0x13, channel, 0); 383 snd_emu10k1_ptr20_write(emu, 0x13, channel, 0);
367 snd_emu10k1_ptr20_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr); 384 snd_emu10k1_ptr20_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
368 snd_emu10k1_ptr20_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes 385 snd_emu10k1_ptr20_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes