diff options
| -rw-r--r-- | sound/arm/aaci.c | 70 |
1 files changed, 20 insertions, 50 deletions
diff --git a/sound/arm/aaci.c b/sound/arm/aaci.c index ab66d462d865..8915e56d1b51 100644 --- a/sound/arm/aaci.c +++ b/sound/arm/aaci.c @@ -490,12 +490,21 @@ static int aaci_pcm_hw_free(struct snd_pcm_substream *substream) return 0; } +/* Channel to slot mask */ +static const u32 channels_to_slotmask[] = { + [2] = CR_SL3 | CR_SL4, + [4] = CR_SL3 | CR_SL4 | CR_SL7 | CR_SL8, + [6] = CR_SL3 | CR_SL4 | CR_SL7 | CR_SL8 | CR_SL6 | CR_SL9, +}; + static int aaci_pcm_hw_params(struct snd_pcm_substream *substream, - struct aaci_runtime *aacirun, struct snd_pcm_hw_params *params) { + struct aaci_runtime *aacirun = substream->runtime->private_data; + unsigned int channels = params_channels(params); + unsigned int rate = params_rate(params); + int dbl = rate > 48000; int err; - struct aaci *aaci = substream->private_data; aaci_pcm_hw_free(substream); if (aacirun->pcm_open) { @@ -503,18 +512,21 @@ static int aaci_pcm_hw_params(struct snd_pcm_substream *substream, aacirun->pcm_open = 0; } + /* channels is already limited to 2, 4, or 6 by aaci_rule_channels */ + if (dbl && channels != 2) + return -EINVAL; + err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params)); if (err >= 0) { - unsigned int rate = params_rate(params); - int dbl = rate > 48000; + struct aaci *aaci = substream->private_data; - err = snd_ac97_pcm_open(aacirun->pcm, rate, - params_channels(params), + err = snd_ac97_pcm_open(aacirun->pcm, rate, channels, aacirun->pcm->r[dbl].slots); aacirun->pcm_open = err == 0; aacirun->cr = CR_FEN | CR_COMPACT | CR_SZ16; + aacirun->cr |= channels_to_slotmask[channels + dbl * 2]; aacirun->fifosz = aaci->fifosize * 4; if (aacirun->cr & CR_COMPACT) @@ -551,34 +563,6 @@ static snd_pcm_uframes_t aaci_pcm_pointer(struct snd_pcm_substream *substream) /* * Playback specific ALSA stuff */ -static const u32 channels_to_txmask[] = { - [2] = CR_SL3 | CR_SL4, - [4] = CR_SL3 | CR_SL4 | CR_SL7 | CR_SL8, - [6] = CR_SL3 | CR_SL4 | CR_SL7 | CR_SL8 | CR_SL6 | CR_SL9, -}; - -static int aaci_pcm_playback_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params) -{ - struct aaci_runtime *aacirun = substream->runtime->private_data; - unsigned int channels = params_channels(params); - int ret; - - WARN_ON(channels >= ARRAY_SIZE(channels_to_txmask) || - !channels_to_txmask[channels]); - - ret = aaci_pcm_hw_params(substream, aacirun, params); - - /* - * Enable FIFO, compact mode, 16 bits per sample. - * FIXME: double rate slots? - */ - if (ret >= 0) - aacirun->cr |= channels_to_txmask[channels]; - - return ret; -} - static void aaci_pcm_playback_stop(struct aaci_runtime *aacirun) { u32 ie; @@ -648,27 +632,13 @@ static struct snd_pcm_ops aaci_playback_ops = { .open = aaci_pcm_open, .close = aaci_pcm_close, .ioctl = snd_pcm_lib_ioctl, - .hw_params = aaci_pcm_playback_hw_params, + .hw_params = aaci_pcm_hw_params, .hw_free = aaci_pcm_hw_free, .prepare = aaci_pcm_prepare, .trigger = aaci_pcm_playback_trigger, .pointer = aaci_pcm_pointer, }; -static int aaci_pcm_capture_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params) -{ - struct aaci_runtime *aacirun = substream->runtime->private_data; - int ret; - - ret = aaci_pcm_hw_params(substream, aacirun, params); - if (ret >= 0) - /* Line in record: slot 3 and 4 */ - aacirun->cr |= CR_SL3 | CR_SL4; - - return ret; -} - static void aaci_pcm_capture_stop(struct aaci_runtime *aacirun) { u32 ie; @@ -765,7 +735,7 @@ static struct snd_pcm_ops aaci_capture_ops = { .open = aaci_pcm_open, .close = aaci_pcm_close, .ioctl = snd_pcm_lib_ioctl, - .hw_params = aaci_pcm_capture_hw_params, + .hw_params = aaci_pcm_hw_params, .hw_free = aaci_pcm_hw_free, .prepare = aaci_pcm_capture_prepare, .trigger = aaci_pcm_capture_trigger, |