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/amd/raven/acp3x-pcm-dma.c | |
parent | b89b889a326a7abf1c9ceef7ddbe06dbaf8c2520 (diff) | |
parent | a98429acadefc2b36611220f51659ecb3c1f35d2 (diff) | |
download | linux-3c53c6255d598db7084c5c3d7553d7200e857818.tar.gz |
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/amd/raven/acp3x-pcm-dma.c')
-rw-r--r-- | sound/soc/amd/raven/acp3x-pcm-dma.c | 43 |
1 files changed, 31 insertions, 12 deletions
diff --git a/sound/soc/amd/raven/acp3x-pcm-dma.c b/sound/soc/amd/raven/acp3x-pcm-dma.c index 9775bda2a4ca..a4ade6bb5beb 100644 --- a/sound/soc/amd/raven/acp3x-pcm-dma.c +++ b/sound/soc/amd/raven/acp3x-pcm-dma.c @@ -32,6 +32,7 @@ struct i2s_stream_instance { u16 channels; u32 xfer_resolution; struct page *pg; + u64 bytescount; void __iomem *acp3x_base; }; @@ -317,6 +318,24 @@ static int acp3x_dma_open(struct snd_pcm_substream *substream) return 0; } +static u64 acp_get_byte_count(struct i2s_stream_instance *rtd, int direction) +{ + u64 byte_count; + + if (direction == SNDRV_PCM_STREAM_PLAYBACK) { + byte_count = rv_readl(rtd->acp3x_base + + mmACP_BT_TX_LINEARPOSITIONCNTR_HIGH); + byte_count |= rv_readl(rtd->acp3x_base + + mmACP_BT_TX_LINEARPOSITIONCNTR_LOW); + } else { + byte_count = rv_readl(rtd->acp3x_base + + mmACP_BT_RX_LINEARPOSITIONCNTR_HIGH); + byte_count |= rv_readl(rtd->acp3x_base + + mmACP_BT_RX_LINEARPOSITIONCNTR_LOW); + } + return byte_count; +} + static int acp3x_dma_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { @@ -350,18 +369,17 @@ static int acp3x_dma_hw_params(struct snd_pcm_substream *substream, static snd_pcm_uframes_t acp3x_dma_pointer(struct snd_pcm_substream *substream) { u32 pos = 0; - struct i2s_stream_instance *rtd = substream->runtime->private_data; - - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - pos = rv_readl(rtd->acp3x_base + - mmACP_BT_TX_LINKPOSITIONCNTR); - else - pos = rv_readl(rtd->acp3x_base + - mmACP_BT_RX_LINKPOSITIONCNTR); - - if (pos >= MAX_BUFFER) - pos = 0; - + u32 buffersize = 0; + u64 bytescount = 0; + struct i2s_stream_instance *rtd = + substream->runtime->private_data; + + buffersize = frames_to_bytes(substream->runtime, + substream->runtime->buffer_size); + bytescount = acp_get_byte_count(rtd, substream->stream); + if (bytescount > rtd->bytescount) + bytescount -= rtd->bytescount; + pos = do_div(bytescount, buffersize); return bytes_to_frames(substream->runtime, pos); } @@ -521,6 +539,7 @@ static int acp3x_dai_i2s_trigger(struct snd_pcm_substream *substream, case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_RESUME: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + rtd->bytescount = acp_get_byte_count(rtd, substream->stream); if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { rv_writel(period_bytes, rtd->acp3x_base + mmACP_BT_TX_INTR_WATERMARK_SIZE); |