diff options
author | Takashi Iwai <tiwai@suse.de> | 2019-07-08 14:45:20 +0200 |
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committer | Takashi Iwai <tiwai@suse.de> | 2019-07-08 14:45:34 +0200 |
commit | 3c53c6255d598db7084c5c3d7553d7200e857818 (patch) | |
tree | 19a88468bd59118ac7f07ce730485211ca671ea5 /sound/soc/stm/stm32_adfsdm.c | |
parent | b89b889a326a7abf1c9ceef7ddbe06dbaf8c2520 (diff) | |
parent | a98429acadefc2b36611220f51659ecb3c1f35d2 (diff) |
Merge tag 'asoc-v5.3' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v5.3
This is a very big update, mainly thanks to Morimoto-san's refactoring
work and some fairly large new drivers.
- Lots more work on moving towards a component based framework from
Morimoto-san.
- Support for force disconnecting muxes from Jerome Brunet.
- New drivers for Cirrus Logic CS47L35, CS47L85 and CS47L90, Conexant
CX2072X, Realtek RT1011 and RT1308.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/soc/stm/stm32_adfsdm.c')
-rw-r--r-- | sound/soc/stm/stm32_adfsdm.c | 49 |
1 files changed, 39 insertions, 10 deletions
diff --git a/sound/soc/stm/stm32_adfsdm.c b/sound/soc/stm/stm32_adfsdm.c index cc517e007039..3c9a9deec9af 100644 --- a/sound/soc/stm/stm32_adfsdm.c +++ b/sound/soc/stm/stm32_adfsdm.c @@ -45,7 +45,7 @@ struct stm32_adfsdm_priv { static const struct snd_pcm_hardware stm32_adfsdm_pcm_hw = { .info = SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_PAUSE, - .formats = SNDRV_PCM_FMTBIT_S32_LE, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE, .rate_min = 8000, .rate_max = 32000, @@ -141,7 +141,8 @@ static const struct snd_soc_dai_driver stm32_adfsdm_dai = { .capture = { .channels_min = 1, .channels_max = 1, - .formats = SNDRV_PCM_FMTBIT_S32_LE, + .formats = SNDRV_PCM_FMTBIT_S16_LE | + SNDRV_PCM_FMTBIT_S32_LE, .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_32000), }, @@ -152,30 +153,58 @@ static const struct snd_soc_component_driver stm32_adfsdm_dai_component = { .name = "stm32_dfsdm_audio", }; +static void memcpy_32to16(void *dest, const void *src, size_t n) +{ + unsigned int i = 0; + u16 *d = (u16 *)dest, *s = (u16 *)src; + + s++; + for (i = n; i > 0; i--) { + *d++ = *s++; + s++; + } +} + static int stm32_afsdm_pcm_cb(const void *data, size_t size, void *private) { struct stm32_adfsdm_priv *priv = private; struct snd_soc_pcm_runtime *rtd = priv->substream->private_data; u8 *pcm_buff = priv->pcm_buff; u8 *src_buff = (u8 *)data; - unsigned int buff_size = snd_pcm_lib_buffer_bytes(priv->substream); - unsigned int period_size = snd_pcm_lib_period_bytes(priv->substream); unsigned int old_pos = priv->pos; - unsigned int cur_size = size; + size_t buff_size = snd_pcm_lib_buffer_bytes(priv->substream); + size_t period_size = snd_pcm_lib_period_bytes(priv->substream); + size_t cur_size, src_size = size; + snd_pcm_format_t format = priv->substream->runtime->format; + + if (format == SNDRV_PCM_FORMAT_S16_LE) + src_size >>= 1; + cur_size = src_size; dev_dbg(rtd->dev, "%s: buff_add :%pK, pos = %d, size = %zu\n", - __func__, &pcm_buff[priv->pos], priv->pos, size); + __func__, &pcm_buff[priv->pos], priv->pos, src_size); - if ((priv->pos + size) > buff_size) { - memcpy(&pcm_buff[priv->pos], src_buff, buff_size - priv->pos); + if ((priv->pos + src_size) > buff_size) { + if (format == SNDRV_PCM_FORMAT_S16_LE) + memcpy_32to16(&pcm_buff[priv->pos], src_buff, + buff_size - priv->pos); + else + memcpy(&pcm_buff[priv->pos], src_buff, + buff_size - priv->pos); cur_size -= buff_size - priv->pos; priv->pos = 0; } - memcpy(&pcm_buff[priv->pos], &src_buff[size - cur_size], cur_size); + if (format == SNDRV_PCM_FORMAT_S16_LE) + memcpy_32to16(&pcm_buff[priv->pos], + &src_buff[src_size - cur_size], cur_size); + else + memcpy(&pcm_buff[priv->pos], &src_buff[src_size - cur_size], + cur_size); + priv->pos = (priv->pos + cur_size) % buff_size; - if (cur_size != size || (old_pos && (old_pos % period_size < size))) + if (cur_size != src_size || (old_pos && (old_pos % period_size < size))) snd_pcm_period_elapsed(priv->substream); return 0; |