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ALSA: aaci: Use managed buffer allocation 

Clean up the driver with the new managed buffer allocation API.
The superfluous snd_pcm_lib_malloc_pages() and
snd_pcm_lib_free_pages() calls are dropped, and the if block is
flattened accordingly.

Link: https://lore.kernel.org/r/20191209094943.14984-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2019-12-09 10:48:34 +01:00
parent 9b2433a9c5
commit 8ee0c75869
1 changed files with 15 additions and 25 deletions
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40
sound/arm/aaci.c
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@ -483,11 +483,6 @@ static int aaci_pcm_hw_free(struct snd_pcm_substream *substream)
snd_ac97_pcm_close(aacirun->pcm);
aacirun->pcm_open = 0;
/*
* Clear out the DMA and any allocated buffers.
*/
snd_pcm_lib_free_pages(substream);
return 0;
}
@ -502,6 +497,7 @@ static int aaci_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct aaci_runtime *aacirun = substream->runtime->private_data;
struct aaci *aaci = substream->private_data;
unsigned int channels = params_channels(params);
unsigned int rate = params_rate(params);
int dbl = rate > 48000;
@ -517,25 +513,19 @@ static int aaci_pcm_hw_params(struct snd_pcm_substream *substream,
if (dbl && channels != 2)
return -EINVAL;
err = snd_pcm_lib_malloc_pages(substream,
params_buffer_bytes(params));
if (err >= 0) {
struct aaci *aaci = substream->private_data;
err = snd_ac97_pcm_open(aacirun->pcm, rate, channels,
aacirun->pcm->r[dbl].slots);
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->pcm_open = err == 0;
aacirun->cr = CR_FEN | CR_COMPACT | CR_SZ16;
aacirun->cr |= channels_to_slotmask[channels + dbl * 2];
/*
* fifo_bytes is the number of bytes we transfer to/from
* the FIFO, including padding. So that's x4. As we're
* in compact mode, the FIFO is half the size.
*/
aacirun->fifo_bytes = aaci->fifo_depth * 4 / 2;
}
/*
* fifo_bytes is the number of bytes we transfer to/from
* the FIFO, including padding. So that's x4. As we're
* in compact mode, the FIFO is half the size.
*/
aacirun->fifo_bytes = aaci->fifo_depth * 4 / 2;
return err;
}
@ -937,9 +927,9 @@ static int aaci_init_pcm(struct aaci *aaci)
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &aaci_playback_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &aaci_capture_ops);
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
aaci->card->dev,
0, 64 * 1024);
snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
aaci->card->dev,
0, 64 * 1024);
}
return ret;