[PATCH v16 3/9] ASoC: qcom: Add helper function to get dma control and lpaif handle
Srinivasa Rao Mandadapu
quic_srivasam at quicinc.com
Thu Feb 24 16:33:42 CET 2022
Add support function to get dma control and lpaif handle to avoid
repeated code in platform driver
Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam at quicinc.com>
Co-developed-by: Venkata Prasad Potturu <quic_potturu at quicinc.com>
Signed-off-by: Venkata Prasad Potturu <quic_potturu at quicinc.com>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla at linaro.org>
---
sound/soc/qcom/lpass-platform.c | 131 ++++++++++++++++++++++++----------------
1 file changed, 80 insertions(+), 51 deletions(-)
diff --git a/sound/soc/qcom/lpass-platform.c b/sound/soc/qcom/lpass-platform.c
index a44162c..198f27c 100644
--- a/sound/soc/qcom/lpass-platform.c
+++ b/sound/soc/qcom/lpass-platform.c
@@ -177,6 +177,75 @@ static int lpass_platform_pcmops_close(struct snd_soc_component *component,
return 0;
}
+static struct lpaif_dmactl *__lpass_get_dmactl_handle(const struct snd_pcm_substream *substream,
+ struct snd_soc_component *component)
+{
+ struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
+ struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
+ struct lpass_data *drvdata = snd_soc_component_get_drvdata(component);
+ struct lpaif_dmactl *dmactl = NULL;
+
+ switch (cpu_dai->driver->id) {
+ case MI2S_PRIMARY ... MI2S_QUINARY:
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ dmactl = drvdata->rd_dmactl;
+ else
+ dmactl = drvdata->wr_dmactl;
+ break;
+ case LPASS_DP_RX:
+ dmactl = drvdata->hdmi_rd_dmactl;
+ break;
+ }
+
+ return dmactl;
+}
+
+static int __lpass_get_id(const struct snd_pcm_substream *substream,
+ struct snd_soc_component *component)
+{
+ struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
+ struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
+ struct lpass_data *drvdata = snd_soc_component_get_drvdata(component);
+ struct snd_pcm_runtime *rt = substream->runtime;
+ struct lpass_pcm_data *pcm_data = rt->private_data;
+ struct lpass_variant *v = drvdata->variant;
+ int id;
+
+ switch (cpu_dai->driver->id) {
+ case MI2S_PRIMARY ... MI2S_QUINARY:
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ id = pcm_data->dma_ch;
+ else
+ id = pcm_data->dma_ch - v->wrdma_channel_start;
+ break;
+ case LPASS_DP_RX:
+ id = pcm_data->dma_ch;
+ break;
+ }
+
+ return id;
+}
+
+static struct regmap *__lpass_get_regmap_handle(const struct snd_pcm_substream *substream,
+ struct snd_soc_component *component)
+{
+ struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
+ struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
+ struct lpass_data *drvdata = snd_soc_component_get_drvdata(component);
+ struct regmap *map = NULL;
+
+ switch (cpu_dai->driver->id) {
+ case MI2S_PRIMARY ... MI2S_QUINARY:
+ map = drvdata->lpaif_map;
+ break;
+ case LPASS_DP_RX:
+ map = drvdata->hdmiif_map;
+ break;
+ }
+
+ return map;
+}
+
static int lpass_platform_pcmops_hw_params(struct snd_soc_component *component,
struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
@@ -191,22 +260,13 @@ static int lpass_platform_pcmops_hw_params(struct snd_soc_component *component,
unsigned int channels = params_channels(params);
unsigned int regval;
struct lpaif_dmactl *dmactl;
- int id, dir = substream->stream;
+ int id;
int bitwidth;
int ret, dma_port = pcm_data->i2s_port + v->dmactl_audif_start;
unsigned int dai_id = cpu_dai->driver->id;
- if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
- id = pcm_data->dma_ch;
- if (dai_id == LPASS_DP_RX)
- dmactl = drvdata->hdmi_rd_dmactl;
- else
- dmactl = drvdata->rd_dmactl;
-
- } else {
- dmactl = drvdata->wr_dmactl;
- id = pcm_data->dma_ch - v->wrdma_channel_start;
- }
+ dmactl = __lpass_get_dmactl_handle(substream, component);
+ id = __lpass_get_id(substream, component);
bitwidth = snd_pcm_format_width(format);
if (bitwidth < 0) {
@@ -350,10 +410,7 @@ static int lpass_platform_pcmops_hw_free(struct snd_soc_component *component,
struct regmap *map;
unsigned int dai_id = cpu_dai->driver->id;
- if (dai_id == LPASS_DP_RX)
- map = drvdata->hdmiif_map;
- else
- map = drvdata->lpaif_map;
+ map = __lpass_get_regmap_handle(substream, component);
reg = LPAIF_DMACTL_REG(v, pcm_data->dma_ch, substream->stream, dai_id);
ret = regmap_write(map, reg, 0);
@@ -379,23 +436,11 @@ static int lpass_platform_pcmops_prepare(struct snd_soc_component *component,
int ret, id, ch, dir = substream->stream;
unsigned int dai_id = cpu_dai->driver->id;
-
ch = pcm_data->dma_ch;
- if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
- if (dai_id == LPASS_DP_RX) {
- dmactl = drvdata->hdmi_rd_dmactl;
- map = drvdata->hdmiif_map;
- } else {
- dmactl = drvdata->rd_dmactl;
- map = drvdata->lpaif_map;
- }
- id = pcm_data->dma_ch;
- } else {
- dmactl = drvdata->wr_dmactl;
- id = pcm_data->dma_ch - v->wrdma_channel_start;
- map = drvdata->lpaif_map;
- }
+ dmactl = __lpass_get_dmactl_handle(substream, component);
+ id = __lpass_get_id(substream, component);
+ map = __lpass_get_regmap_handle(substream, component);
ret = regmap_write(map, LPAIF_DMABASE_REG(v, ch, dir, dai_id),
runtime->dma_addr);
@@ -444,26 +489,14 @@ static int lpass_platform_pcmops_trigger(struct snd_soc_component *component,
struct lpaif_dmactl *dmactl;
struct regmap *map;
int ret, ch, id;
- int dir = substream->stream;
unsigned int reg_irqclr = 0, val_irqclr = 0;
unsigned int reg_irqen = 0, val_irqen = 0, val_mask = 0;
unsigned int dai_id = cpu_dai->driver->id;
ch = pcm_data->dma_ch;
- if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
- id = pcm_data->dma_ch;
- if (dai_id == LPASS_DP_RX) {
- dmactl = drvdata->hdmi_rd_dmactl;
- map = drvdata->hdmiif_map;
- } else {
- dmactl = drvdata->rd_dmactl;
- map = drvdata->lpaif_map;
- }
- } else {
- dmactl = drvdata->wr_dmactl;
- id = pcm_data->dma_ch - v->wrdma_channel_start;
- map = drvdata->lpaif_map;
- }
+ dmactl = __lpass_get_dmactl_handle(substream, component);
+ id = __lpass_get_id(substream, component);
+ map = __lpass_get_regmap_handle(substream, component);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
@@ -597,11 +630,7 @@ static snd_pcm_uframes_t lpass_platform_pcmops_pointer(
struct regmap *map;
unsigned int dai_id = cpu_dai->driver->id;
- if (dai_id == LPASS_DP_RX)
- map = drvdata->hdmiif_map;
- else
- map = drvdata->lpaif_map;
-
+ map = __lpass_get_regmap_handle(substream, component);
ch = pcm_data->dma_ch;
ret = regmap_read(map,
--
2.7.4
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