From 913e9b53a6d75fcb5e65ed5e5a219bc852c1a09c Mon Sep 17 00:00:00 2001 From: Maruthi Srinivas Bayyavarapu Date: Wed, 29 Mar 2017 19:12:20 +0530 Subject: [PATCH 1105/4131] ASoC: AMD: add ACP3x i2s ops ACP3x has a i2s controller block for playback and capture. This patch adds ACP3x i2s operations. Signed-off-by: Maruthi Bayyavarapu Signed-off-by: Alex Deucher --- sound/soc/amd/raven/acp3x-pcm-dma.c | 85 +++++++++++++++++++++++++++++++++++-- 1 file changed, 82 insertions(+), 3 deletions(-) diff --git a/sound/soc/amd/raven/acp3x-pcm-dma.c b/sound/soc/amd/raven/acp3x-pcm-dma.c index 346ebcb..5e589dc 100644 --- a/sound/soc/amd/raven/acp3x-pcm-dma.c +++ b/sound/soc/amd/raven/acp3x-pcm-dma.c @@ -436,10 +436,89 @@ static struct snd_soc_platform_driver acp3x_asoc_platform = { .pcm_new = acp3x_dma_new, }; +static int acp3x_dai_i2s_hwparams(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct i2s_stream_instance *rtd = substream->runtime->private_data; + + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_U8: + case SNDRV_PCM_FORMAT_S8: + rtd->xfer_resolution = 0x0; + break; + case SNDRV_PCM_FORMAT_S16_LE: + rtd->xfer_resolution = 0x02; + break; + + case SNDRV_PCM_FORMAT_S24_LE: + rtd->xfer_resolution = 0x04; + break; + case SNDRV_PCM_FORMAT_S32_LE: + rtd->xfer_resolution = 0x05; + break; + default: + return -EINVAL; + } + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + rv_writel((rtd->xfer_resolution << 3), + rtd->acp3x_base + mmACP_BTTDM_ITER); + else + rv_writel((rtd->xfer_resolution << 3), + rtd->acp3x_base + mmACP_BTTDM_IRER); + + return 0; +} + +static int acp3x_dai_i2s_trigger(struct snd_pcm_substream *substream, + int cmd, struct snd_soc_dai *dai) +{ + int ret = 0; + struct i2s_stream_instance *rtd = substream->runtime->private_data; + u32 val; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_ITER); + val = val | BIT(0); + rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_ITER); + } else { + val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_IRER); + val = val | BIT(0); + rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_IRER); + } + rv_writel(1, rtd->acp3x_base + mmACP_BTTDM_IER); + break; + + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_ITER); + val = val & ~BIT(0); + rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_ITER); + } else { + val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_IRER); + val = val & ~BIT(0); + rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_IRER); + } + rv_writel(0, rtd->acp3x_base + mmACP_BTTDM_IER); + break; + default: + ret = -EINVAL; + break; + } + + return ret; +} + struct snd_soc_dai_ops acp3x_dai_i2s_ops = { - .hw_params = NULL, - .trigger = NULL, - .set_fmt = NULL, + .hw_params = acp3x_dai_i2s_hwparams, + .trigger = acp3x_dai_i2s_trigger, }; static struct snd_soc_dai_driver acp3x_i2s_dai_driver = { -- 2.7.4