mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-24 17:59:32 +00:00
Code Issues Releases Wiki Activity

ASoC: blackfin: Convert to the new PCM ops

Browse source 
Replace the copy and the silence ops with the new PCM ops.
In AC97 and I2S-TDM mode, we need to convert back to frames, but
otherwise the conversion is pretty straightforward.

Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2017-05-10 21:59:12 +02:00
parent 1cc2f8ba0b
commit aa708c613b
2 changed files with 43 additions and 20 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

27
sound/soc/blackfin/bf5xx-ac97-pcm.c
View file

@ -279,23 +279,33 @@ static int bf5xx_pcm_mmap(struct snd_pcm_substream *substream,
return 0 ;
}
#else
static int bf5xx_pcm_copy(struct snd_pcm_substream *substream, int channel,
snd_pcm_uframes_t pos,
void __user *buf, snd_pcm_uframes_t count)
static int bf5xx_pcm_copy(struct snd_pcm_substream *substream,
int channel, unsigned long pos,
void *buf, unsigned long count)
{
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned int chan_mask = ac97_chan_mask[runtime->channels - 1];
struct ac97_frame *dst;
pr_debug("%s copy pos:0x%lx count:0x%lx\n",
substream->stream ? "Capture" : "Playback", pos, count);
dst = (struct ac97_frame *)runtime->dma_area +
bytes_to_frames(runtime, pos);
count = bytes_to_frames(runtime, count);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
bf5xx_pcm_to_ac97((struct ac97_frame *)runtime->dma_area + pos,
(__u16 *)buf, count, chan_mask);
bf5xx_pcm_to_ac97(dst, buf, count, chan_mask);
else
bf5xx_ac97_to_pcm((struct ac97_frame *)runtime->dma_area + pos,
(__u16 *)buf, count);
bf5xx_ac97_to_pcm(dst, buf, count);
return 0;
}
static int bf5xx_pcm_copy_user(struct snd_pcm_substream *substream,
int channel, unsigned long pos,
void __user *buf, unsigned long count)
{
return bf5xx_pcm_copy(substream, channel, pos, (void *)buf, count);
}
#endif
static struct snd_pcm_ops bf5xx_pcm_ac97_ops = {
@ -309,7 +319,8 @@ static struct snd_pcm_ops bf5xx_pcm_ac97_ops = {
#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
.mmap = bf5xx_pcm_mmap,
#else
.copy = bf5xx_pcm_copy,
.copy_user = bf5xx_pcm_copy_user,
.copy_kernel = bf5xx_pcm_copy,
#endif
};

36
sound/soc/blackfin/bf5xx-i2s-pcm.c
View file

@ -225,8 +225,9 @@ static int bf5xx_pcm_mmap(struct snd_pcm_substream *substream,
return 0 ;
}
static int bf5xx_pcm_copy(struct snd_pcm_substream *substream, int channel,
snd_pcm_uframes_t pos, void *buf, snd_pcm_uframes_t count)
static int bf5xx_pcm_copy(struct snd_pcm_substream *substream,
int channel, unsigned long pos,
void *buf, unsigned long count)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_pcm_runtime *runtime = substream->runtime;
@ -238,6 +239,8 @@ static int bf5xx_pcm_copy(struct snd_pcm_substream *substream, int channel,
dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
if (dma_data->tdm_mode) {
pos = bytes_to_frames(runtime, pos);
count = bytes_to_frames(runtime, count);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
src = buf;
dst = runtime->dma_area;
@ -269,21 +272,29 @@ static int bf5xx_pcm_copy(struct snd_pcm_substream *substream, int channel,
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
src = buf;
dst = runtime->dma_area;
dst += frames_to_bytes(runtime, pos);
dst += pos;
} else {
src = runtime->dma_area;
src += frames_to_bytes(runtime, pos);
src += pos;
dst = buf;
}
memcpy(dst, src, frames_to_bytes(runtime, count));
memcpy(dst, src, count);
}
return 0;
}
static int bf5xx_pcm_copy_user(struct snd_pcm_substream *substream,
int channel, unsigned long pos,
void __user *buf, unsigned long count)
{
return bf5xx_pcm_copy(substream, channel, pos, (void *)buf, count);
}
static int bf5xx_pcm_silence(struct snd_pcm_substream *substream,
int channel, snd_pcm_uframes_t pos, snd_pcm_uframes_t count)
int channel, unsigned long pos,
unsigned long count)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_pcm_runtime *runtime = substream->runtime;
@ -295,11 +306,11 @@ static int bf5xx_pcm_silence(struct snd_pcm_substream *substream,
dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
if (dma_data->tdm_mode) {
offset = pos * 8 * sample_size;
samples = count * 8;
offset = bytes_to_frames(runtime, pos) * 8 * sample_size;
samples = bytes_to_frames(runtime, count) * 8;
} else {
offset = frames_to_bytes(runtime, pos);
samples = count * runtime->channels;
offset = pos;
samples = bytes_to_samples(runtime, count);
}
snd_pcm_format_set_silence(runtime->format, buf + offset, samples);
@ -316,8 +327,9 @@ static struct snd_pcm_ops bf5xx_pcm_i2s_ops = {
.trigger = bf5xx_pcm_trigger,
.pointer = bf5xx_pcm_pointer,
.mmap = bf5xx_pcm_mmap,
.copy = bf5xx_pcm_copy,
.silence = bf5xx_pcm_silence,
.copy_user = bf5xx_pcm_copy_user,
.copy_kernel = bf5xx_pcm_copy,
.fill_silence = bf5xx_pcm_silence,
};
static int bf5xx_pcm_i2s_new(struct snd_soc_pcm_runtime *rtd)