* [PATCH] Asoc: qcom: Add four speaker support on MI2S secondary
@ 2021-05-27 7:33 Srinivasa Rao Mandadapu
2021-05-28 8:36 ` Srinivas Kandagatla
0 siblings, 1 reply; 3+ messages in thread
From: Srinivasa Rao Mandadapu @ 2021-05-27 7:33 UTC (permalink / raw)
To: agross, bjorn.andersson, lgirdwood, broonie, robh+dt, plai,
bgoswami, perex, tiwai, srinivas.kandagatla, rohitkr,
linux-arm-msm, alsa-devel, devicetree, linux-kernel, swboyd,
judyhsiao
Cc: Srinivasa Rao Mandadapu
Add four speaker support on MI2S secondary block
by using I2S SD1 line on gpio52 pin, and add channel map
control support in the lpass-cpu audio driver.
Signed-off-by: Srinivasa Rao Mandadapu <srivasam@codeaurora.org>
---
sound/soc/qcom/lpass-cpu.c | 106 +++++++++++++++++++++++++++++++++-
sound/soc/qcom/lpass-sc7180.c | 1 +
sound/soc/qcom/lpass.h | 5 ++
3 files changed, 111 insertions(+), 1 deletion(-)
diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c
index c62d2612e8f5..88a038a107a7 100644
--- a/sound/soc/qcom/lpass-cpu.c
+++ b/sound/soc/qcom/lpass-cpu.c
@@ -28,6 +28,19 @@
#define LPASS_CPU_I2S_SD2_3_MASK GENMASK(3, 2)
#define LPASS_CPU_I2S_SD0_1_2_MASK GENMASK(2, 0)
#define LPASS_CPU_I2S_SD0_1_2_3_MASK GENMASK(3, 0)
+#define LPASS_CHMAP_IDX_UNKNOWN -1
+
+/*
+ * Channel maps for multi-channel playbacks on MI2S Secondary, up to 4 n_ch
+ */
+static struct snd_pcm_chmap_elem lpass_chmaps[] = {
+ { .channels = 2,
+ .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } },
+ { .channels = 4,
+ .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR,
+ SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
+ { }
+};
static int lpass_cpu_init_i2sctl_bitfields(struct device *dev,
struct lpaif_i2sctl *i2sctl, struct regmap *map)
@@ -86,6 +99,9 @@ static int lpass_cpu_daiops_startup(struct snd_pcm_substream *substream,
clk_disable_unprepare(drvdata->mi2s_osr_clk[dai->driver->id]);
return ret;
}
+ if (drvdata->chmap_info && drvdata->chmap_info->max_channels == 4)
+ drvdata->chmap_info->chmap = lpass_chmaps;
+
return 0;
}
@@ -96,6 +112,7 @@ static void lpass_cpu_daiops_shutdown(struct snd_pcm_substream *substream,
clk_disable_unprepare(drvdata->mi2s_osr_clk[dai->driver->id]);
clk_unprepare(drvdata->mi2s_bit_clk[dai->driver->id]);
+ drvdata->chmap_idx = LPASS_CHMAP_IDX_UNKNOWN;
}
static int lpass_cpu_daiops_hw_params(struct snd_pcm_substream *substream,
@@ -224,9 +241,14 @@ static int lpass_cpu_daiops_hw_params(struct snd_pcm_substream *substream,
ret);
return ret;
}
- if (channels >= 2)
+ if (channels >= 2) {
ret = regmap_fields_write(i2sctl->spkmono, id,
LPAIF_I2SCTL_SPKMONO_STEREO);
+ if (channels == 4)
+ drvdata->chmap_idx = 1;
+ else
+ drvdata->chmap_idx = 0;
+ }
else
ret = regmap_fields_write(i2sctl->spkmono, id,
LPAIF_I2SCTL_SPKMONO_MONO);
@@ -324,6 +346,84 @@ const struct snd_soc_dai_ops asoc_qcom_lpass_cpu_dai_ops = {
};
EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_dai_ops);
+static int lpass_cpu_chmap_ctl_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ unsigned const char *map;
+ unsigned int i;
+ struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
+ struct lpass_data *drvdata = info->private_data;
+
+ if (info->max_channels == 2)
+ map = &lpass_chmaps[0].map[0];
+ else if (info->max_channels == 4)
+ map = &lpass_chmaps[1].map[0];
+
+ for (i = 0; i < info->max_channels; i++) {
+ if (drvdata->chmap_idx == LPASS_CHMAP_IDX_UNKNOWN)
+ ucontrol->value.integer.value[i] = 0;
+ else
+ ucontrol->value.integer.value[i] = map[i];
+ }
+
+ return 0;
+}
+
+static int lpass_cpu_chmap_ctl_set(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ unsigned int i;
+ struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
+ struct lpass_data *drvdata = info->private_data;
+ unsigned char *map;
+
+ if (info->max_channels == 2)
+ map = &lpass_chmaps[0].map[0];
+ else if (info->max_channels == 4)
+ map = &lpass_chmaps[1].map[0];
+
+ for (i = 0; i < info->max_channels; i++) {
+ if (drvdata->chmap_idx == LPASS_CHMAP_IDX_UNKNOWN)
+ map[i] = 0;
+ else
+ map[i] = ucontrol->value.integer.value[i];
+ }
+
+ return 0;
+}
+
+int lpass_cpu_pcm_new(struct snd_soc_pcm_runtime *rtd,
+ struct snd_soc_dai *dai)
+{
+ int ret;
+
+ struct snd_soc_dai_driver *drv = dai->driver;
+ struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
+
+ ret = snd_pcm_add_chmap_ctls(rtd->pcm, SNDRV_PCM_STREAM_PLAYBACK,
+ snd_pcm_alt_chmaps, drv->playback.channels_max, 0,
+ &drvdata->chmap_info);
+ if (ret < 0)
+ return ret;
+
+
+ /*
+ * override handlers
+ */
+ drvdata->chmap_info->private_data = drvdata;
+ drvdata->chmap_info->kctl->get = lpass_cpu_chmap_ctl_get;
+ drvdata->chmap_info->kctl->put = lpass_cpu_chmap_ctl_set;
+
+ /*
+ * default chmap supported is stereo
+ */
+ drvdata->chmap_info->chmap = lpass_chmaps;
+ drvdata->chmap_idx = LPASS_CHMAP_IDX_UNKNOWN;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(lpass_cpu_pcm_new);
+
int asoc_qcom_lpass_cpu_dai_probe(struct snd_soc_dai *dai)
{
struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
@@ -856,6 +956,10 @@ int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev)
PTR_ERR(drvdata->mi2s_bit_clk[dai_id]));
return PTR_ERR(drvdata->mi2s_bit_clk[dai_id]);
}
+ if (drvdata->mi2s_playback_sd_mode[dai_id] == LPAIF_I2SCTL_MODE_QUAD01) {
+ variant->dai_driver[dai_id].playback.channels_min = 4;
+ variant->dai_driver[dai_id].playback.channels_max = 4;
+ }
}
/* Allocation for i2sctl regmap fields */
diff --git a/sound/soc/qcom/lpass-sc7180.c b/sound/soc/qcom/lpass-sc7180.c
index 8c168d3c589e..77a556b27cf0 100644
--- a/sound/soc/qcom/lpass-sc7180.c
+++ b/sound/soc/qcom/lpass-sc7180.c
@@ -58,6 +58,7 @@ static struct snd_soc_dai_driver sc7180_lpass_cpu_dai_driver[] = {
},
.probe = &asoc_qcom_lpass_cpu_dai_probe,
.ops = &asoc_qcom_lpass_cpu_dai_ops,
+ .pcm_new = lpass_cpu_pcm_new,
}, {
.id = LPASS_DP_RX,
.name = "Hdmi",
diff --git a/sound/soc/qcom/lpass.h b/sound/soc/qcom/lpass.h
index 83b2e08ade06..fb82591d550c 100644
--- a/sound/soc/qcom/lpass.h
+++ b/sound/soc/qcom/lpass.h
@@ -76,6 +76,9 @@ struct lpass_data {
/* regmap backed by the low-power audio interface (LPAIF) registers */
struct regmap *lpaif_map;
struct regmap *hdmiif_map;
+ struct snd_pcm_chmap *chmap_info;
+
+ int chmap_idx;
/* interrupts from the low-power audio interface (LPAIF) */
int lpaif_irq;
@@ -259,5 +262,7 @@ void asoc_qcom_lpass_cpu_platform_shutdown(struct platform_device *pdev);
int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev);
int asoc_qcom_lpass_cpu_dai_probe(struct snd_soc_dai *dai);
extern const struct snd_soc_dai_ops asoc_qcom_lpass_cpu_dai_ops;
+int lpass_cpu_pcm_new(struct snd_soc_pcm_runtime *rtd,
+ struct snd_soc_dai *dai);
#endif /* __LPASS_H__ */
--
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc.,
is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH] Asoc: qcom: Add four speaker support on MI2S secondary
2021-05-27 7:33 [PATCH] Asoc: qcom: Add four speaker support on MI2S secondary Srinivasa Rao Mandadapu
@ 2021-05-28 8:36 ` Srinivas Kandagatla
2021-06-09 7:12 ` Srinivasa Rao Mandadapu
0 siblings, 1 reply; 3+ messages in thread
From: Srinivas Kandagatla @ 2021-05-28 8:36 UTC (permalink / raw)
To: Srinivasa Rao Mandadapu, agross, bjorn.andersson, lgirdwood,
broonie, robh+dt, plai, bgoswami, perex, tiwai, rohitkr,
linux-arm-msm, alsa-devel, devicetree, linux-kernel, swboyd,
judyhsiao
Hi Srinivasa,
On 27/05/2021 08:33, Srinivasa Rao Mandadapu wrote:
> Add four speaker support on MI2S secondary block
> by using I2S SD1 line on gpio52 pin, and add channel map
> control support in the lpass-cpu audio driver.
>
> Signed-off-by: Srinivasa Rao Mandadapu <srivasam@codeaurora.org>
> ---
> sound/soc/qcom/lpass-cpu.c | 106 +++++++++++++++++++++++++++++++++-
> sound/soc/qcom/lpass-sc7180.c | 1 +
> sound/soc/qcom/lpass.h | 5 ++
> 3 files changed, 111 insertions(+), 1 deletion(-)
>
This patch looks totally redundant to set_channel_map/get_channel_map
implementation. You should probably consider adding that support to the
qcom_lpass_cpu_dai_ops. And let the machine driver set the channel map.
--srini
> diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c
> index c62d2612e8f5..88a038a107a7 100644
> --- a/sound/soc/qcom/lpass-cpu.c
> +++ b/sound/soc/qcom/lpass-cpu.c
> @@ -28,6 +28,19 @@
> #define LPASS_CPU_I2S_SD2_3_MASK GENMASK(3, 2)
> #define LPASS_CPU_I2S_SD0_1_2_MASK GENMASK(2, 0)
> #define LPASS_CPU_I2S_SD0_1_2_3_MASK GENMASK(3, 0)
> +#define LPASS_CHMAP_IDX_UNKNOWN -1
> +
> +/*
> + * Channel maps for multi-channel playbacks on MI2S Secondary, up to 4 n_ch
> + */
> +static struct snd_pcm_chmap_elem lpass_chmaps[] = {
> + { .channels = 2,
> + .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } },
> + { .channels = 4,
> + .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR,
> + SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
> + { }
> +};
>
> static int lpass_cpu_init_i2sctl_bitfields(struct device *dev,
> struct lpaif_i2sctl *i2sctl, struct regmap *map)
> @@ -86,6 +99,9 @@ static int lpass_cpu_daiops_startup(struct snd_pcm_substream *substream,
> clk_disable_unprepare(drvdata->mi2s_osr_clk[dai->driver->id]);
> return ret;
> }
> + if (drvdata->chmap_info && drvdata->chmap_info->max_channels == 4)
> + drvdata->chmap_info->chmap = lpass_chmaps;
> +
> return 0;
> }
>
> @@ -96,6 +112,7 @@ static void lpass_cpu_daiops_shutdown(struct snd_pcm_substream *substream,
>
> clk_disable_unprepare(drvdata->mi2s_osr_clk[dai->driver->id]);
> clk_unprepare(drvdata->mi2s_bit_clk[dai->driver->id]);
> + drvdata->chmap_idx = LPASS_CHMAP_IDX_UNKNOWN;
> }
>
> static int lpass_cpu_daiops_hw_params(struct snd_pcm_substream *substream,
> @@ -224,9 +241,14 @@ static int lpass_cpu_daiops_hw_params(struct snd_pcm_substream *substream,
> ret);
> return ret;
> }
> - if (channels >= 2)
> + if (channels >= 2) {
> ret = regmap_fields_write(i2sctl->spkmono, id,
> LPAIF_I2SCTL_SPKMONO_STEREO);
> + if (channels == 4)
> + drvdata->chmap_idx = 1;
> + else
> + drvdata->chmap_idx = 0;
> + }
> else
> ret = regmap_fields_write(i2sctl->spkmono, id,
> LPAIF_I2SCTL_SPKMONO_MONO);
> @@ -324,6 +346,84 @@ const struct snd_soc_dai_ops asoc_qcom_lpass_cpu_dai_ops = {
> };
> EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_dai_ops);
>
> +static int lpass_cpu_chmap_ctl_get(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + unsigned const char *map;
> + unsigned int i;
> + struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
> + struct lpass_data *drvdata = info->private_data;
> +
> + if (info->max_channels == 2)
> + map = &lpass_chmaps[0].map[0];
> + else if (info->max_channels == 4)
> + map = &lpass_chmaps[1].map[0];
> +
> + for (i = 0; i < info->max_channels; i++) {
> + if (drvdata->chmap_idx == LPASS_CHMAP_IDX_UNKNOWN)
> + ucontrol->value.integer.value[i] = 0;
> + else
> + ucontrol->value.integer.value[i] = map[i];
> + }
> +
> + return 0;
> +}
> +
> +static int lpass_cpu_chmap_ctl_set(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + unsigned int i;
> + struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
> + struct lpass_data *drvdata = info->private_data;
> + unsigned char *map;
> +
> + if (info->max_channels == 2)
> + map = &lpass_chmaps[0].map[0];
> + else if (info->max_channels == 4)
> + map = &lpass_chmaps[1].map[0];
> +
> + for (i = 0; i < info->max_channels; i++) {
> + if (drvdata->chmap_idx == LPASS_CHMAP_IDX_UNKNOWN)
> + map[i] = 0;
> + else
> + map[i] = ucontrol->value.integer.value[i];
> + }
> +
> + return 0;
> +}
> +
> +int lpass_cpu_pcm_new(struct snd_soc_pcm_runtime *rtd,
> + struct snd_soc_dai *dai)
> +{
> + int ret;
> +
> + struct snd_soc_dai_driver *drv = dai->driver;
> + struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
> +
> + ret = snd_pcm_add_chmap_ctls(rtd->pcm, SNDRV_PCM_STREAM_PLAYBACK,
> + snd_pcm_alt_chmaps, drv->playback.channels_max, 0,
> + &drvdata->chmap_info);
> + if (ret < 0)
> + return ret;
> +
> +
> + /*
> + * override handlers
> + */
> + drvdata->chmap_info->private_data = drvdata;
> + drvdata->chmap_info->kctl->get = lpass_cpu_chmap_ctl_get;
> + drvdata->chmap_info->kctl->put = lpass_cpu_chmap_ctl_set;
> +
> + /*
> + * default chmap supported is stereo
> + */
> + drvdata->chmap_info->chmap = lpass_chmaps;
> + drvdata->chmap_idx = LPASS_CHMAP_IDX_UNKNOWN;
> +
> + return 0;
> +}
> +EXPORT_SYMBOL_GPL(lpass_cpu_pcm_new);
> +
> int asoc_qcom_lpass_cpu_dai_probe(struct snd_soc_dai *dai)
> {
> struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
> @@ -856,6 +956,10 @@ int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev)
> PTR_ERR(drvdata->mi2s_bit_clk[dai_id]));
> return PTR_ERR(drvdata->mi2s_bit_clk[dai_id]);
> }
> + if (drvdata->mi2s_playback_sd_mode[dai_id] == LPAIF_I2SCTL_MODE_QUAD01) {
> + variant->dai_driver[dai_id].playback.channels_min = 4;
> + variant->dai_driver[dai_id].playback.channels_max = 4;
> + }
> }
>
> /* Allocation for i2sctl regmap fields */
> diff --git a/sound/soc/qcom/lpass-sc7180.c b/sound/soc/qcom/lpass-sc7180.c
> index 8c168d3c589e..77a556b27cf0 100644
> --- a/sound/soc/qcom/lpass-sc7180.c
> +++ b/sound/soc/qcom/lpass-sc7180.c
> @@ -58,6 +58,7 @@ static struct snd_soc_dai_driver sc7180_lpass_cpu_dai_driver[] = {
> },
> .probe = &asoc_qcom_lpass_cpu_dai_probe,
> .ops = &asoc_qcom_lpass_cpu_dai_ops,
> + .pcm_new = lpass_cpu_pcm_new,
> }, {
> .id = LPASS_DP_RX,
> .name = "Hdmi",
> diff --git a/sound/soc/qcom/lpass.h b/sound/soc/qcom/lpass.h
> index 83b2e08ade06..fb82591d550c 100644
> --- a/sound/soc/qcom/lpass.h
> +++ b/sound/soc/qcom/lpass.h
> @@ -76,6 +76,9 @@ struct lpass_data {
> /* regmap backed by the low-power audio interface (LPAIF) registers */
> struct regmap *lpaif_map;
> struct regmap *hdmiif_map;
> + struct snd_pcm_chmap *chmap_info;
> +
> + int chmap_idx;
>
> /* interrupts from the low-power audio interface (LPAIF) */
> int lpaif_irq;
> @@ -259,5 +262,7 @@ void asoc_qcom_lpass_cpu_platform_shutdown(struct platform_device *pdev);
> int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev);
> int asoc_qcom_lpass_cpu_dai_probe(struct snd_soc_dai *dai);
> extern const struct snd_soc_dai_ops asoc_qcom_lpass_cpu_dai_ops;
> +int lpass_cpu_pcm_new(struct snd_soc_pcm_runtime *rtd,
> + struct snd_soc_dai *dai);
>
> #endif /* __LPASS_H__ */
>
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] Asoc: qcom: Add four speaker support on MI2S secondary
2021-05-28 8:36 ` Srinivas Kandagatla
@ 2021-06-09 7:12 ` Srinivasa Rao Mandadapu
0 siblings, 0 replies; 3+ messages in thread
From: Srinivasa Rao Mandadapu @ 2021-06-09 7:12 UTC (permalink / raw)
To: Srinivas Kandagatla, agross, bjorn.andersson, lgirdwood, broonie,
robh+dt, plai, bgoswami, perex, tiwai, rohitkr, linux-arm-msm,
alsa-devel, devicetree, linux-kernel, swboyd, judyhsiao
Hi Srini,
Thanks for your review comments!!!.
On 5/28/2021 2:06 PM, Srinivas Kandagatla wrote:
> Hi Srinivasa,
>
> On 27/05/2021 08:33, Srinivasa Rao Mandadapu wrote:
>> Add four speaker support on MI2S secondary block
>> by using I2S SD1 line on gpio52 pin, and add channel map
>> control support in the lpass-cpu audio driver.
>>
>> Signed-off-by: Srinivasa Rao Mandadapu <srivasam@codeaurora.org>
>> ---
>> sound/soc/qcom/lpass-cpu.c | 106 +++++++++++++++++++++++++++++++++-
>> sound/soc/qcom/lpass-sc7180.c | 1 +
>> sound/soc/qcom/lpass.h | 5 ++
>> 3 files changed, 111 insertions(+), 1 deletion(-)
>>
>
> This patch looks totally redundant to set_channel_map/get_channel_map
> implementation. You should probably consider adding that support to
> the qcom_lpass_cpu_dai_ops. And let the machine driver set the channel
> map.
>
> --srini
Yes we will do changes accordingly and Post next patch.
>
>> diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c
>> index c62d2612e8f5..88a038a107a7 100644
>> --- a/sound/soc/qcom/lpass-cpu.c
>> +++ b/sound/soc/qcom/lpass-cpu.c
>> @@ -28,6 +28,19 @@
>> #define LPASS_CPU_I2S_SD2_3_MASK GENMASK(3, 2)
>> #define LPASS_CPU_I2S_SD0_1_2_MASK GENMASK(2, 0)
>> #define LPASS_CPU_I2S_SD0_1_2_3_MASK GENMASK(3, 0)
>> +#define LPASS_CHMAP_IDX_UNKNOWN -1
>> +
>> +/*
>> + * Channel maps for multi-channel playbacks on MI2S Secondary, up to
>> 4 n_ch
>> + */
>> +static struct snd_pcm_chmap_elem lpass_chmaps[] = {
>> + { .channels = 2,
>> + .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } },
>> + { .channels = 4,
>> + .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR,
>> + SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
>> + { }
>> +};
>> static int lpass_cpu_init_i2sctl_bitfields(struct device *dev,
>> struct lpaif_i2sctl *i2sctl, struct regmap *map)
>> @@ -86,6 +99,9 @@ static int lpass_cpu_daiops_startup(struct
>> snd_pcm_substream *substream,
>> clk_disable_unprepare(drvdata->mi2s_osr_clk[dai->driver->id]);
>> return ret;
>> }
>> + if (drvdata->chmap_info && drvdata->chmap_info->max_channels == 4)
>> + drvdata->chmap_info->chmap = lpass_chmaps;
>> +
>> return 0;
>> }
>> @@ -96,6 +112,7 @@ static void lpass_cpu_daiops_shutdown(struct
>> snd_pcm_substream *substream,
>> clk_disable_unprepare(drvdata->mi2s_osr_clk[dai->driver->id]);
>> clk_unprepare(drvdata->mi2s_bit_clk[dai->driver->id]);
>> + drvdata->chmap_idx = LPASS_CHMAP_IDX_UNKNOWN;
>> }
>> static int lpass_cpu_daiops_hw_params(struct snd_pcm_substream
>> *substream,
>> @@ -224,9 +241,14 @@ static int lpass_cpu_daiops_hw_params(struct
>> snd_pcm_substream *substream,
>> ret);
>> return ret;
>> }
>> - if (channels >= 2)
>> + if (channels >= 2) {
>> ret = regmap_fields_write(i2sctl->spkmono, id,
>> LPAIF_I2SCTL_SPKMONO_STEREO);
>> + if (channels == 4)
>> + drvdata->chmap_idx = 1;
>> + else
>> + drvdata->chmap_idx = 0;
>> + }
>> else
>> ret = regmap_fields_write(i2sctl->spkmono, id,
>> LPAIF_I2SCTL_SPKMONO_MONO);
>> @@ -324,6 +346,84 @@ const struct snd_soc_dai_ops
>> asoc_qcom_lpass_cpu_dai_ops = {
>> };
>> EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_dai_ops);
>> +static int lpass_cpu_chmap_ctl_get(struct snd_kcontrol *kcontrol,
>> + struct snd_ctl_elem_value *ucontrol)
>> +{
>> + unsigned const char *map;
>> + unsigned int i;
>> + struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
>> + struct lpass_data *drvdata = info->private_data;
>> +
>> + if (info->max_channels == 2)
>> + map = &lpass_chmaps[0].map[0];
>> + else if (info->max_channels == 4)
>> + map = &lpass_chmaps[1].map[0];
>> +
>> + for (i = 0; i < info->max_channels; i++) {
>> + if (drvdata->chmap_idx == LPASS_CHMAP_IDX_UNKNOWN)
>> + ucontrol->value.integer.value[i] = 0;
>> + else
>> + ucontrol->value.integer.value[i] = map[i];
>> + }
>> +
>> + return 0;
>> +}
>> +
>> +static int lpass_cpu_chmap_ctl_set(struct snd_kcontrol *kcontrol,
>> + struct snd_ctl_elem_value *ucontrol)
>> +{
>> + unsigned int i;
>> + struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
>> + struct lpass_data *drvdata = info->private_data;
>> + unsigned char *map;
>> +
>> + if (info->max_channels == 2)
>> + map = &lpass_chmaps[0].map[0];
>> + else if (info->max_channels == 4)
>> + map = &lpass_chmaps[1].map[0];
>> +
>> + for (i = 0; i < info->max_channels; i++) {
>> + if (drvdata->chmap_idx == LPASS_CHMAP_IDX_UNKNOWN)
>> + map[i] = 0;
>> + else
>> + map[i] = ucontrol->value.integer.value[i];
>> + }
>> +
>> + return 0;
>> +}
>> +
>> +int lpass_cpu_pcm_new(struct snd_soc_pcm_runtime *rtd,
>> + struct snd_soc_dai *dai)
>> +{
>> + int ret;
>> +
>> + struct snd_soc_dai_driver *drv = dai->driver;
>> + struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
>> +
>> + ret = snd_pcm_add_chmap_ctls(rtd->pcm, SNDRV_PCM_STREAM_PLAYBACK,
>> + snd_pcm_alt_chmaps, drv->playback.channels_max, 0,
>> + &drvdata->chmap_info);
>> + if (ret < 0)
>> + return ret;
>> +
>> +
>> + /*
>> + * override handlers
>> + */
>> + drvdata->chmap_info->private_data = drvdata;
>> + drvdata->chmap_info->kctl->get = lpass_cpu_chmap_ctl_get;
>> + drvdata->chmap_info->kctl->put = lpass_cpu_chmap_ctl_set;
>> +
>> + /*
>> + * default chmap supported is stereo
>> + */
>> + drvdata->chmap_info->chmap = lpass_chmaps;
>> + drvdata->chmap_idx = LPASS_CHMAP_IDX_UNKNOWN;
>> +
>> + return 0;
>> +}
>> +EXPORT_SYMBOL_GPL(lpass_cpu_pcm_new);
>> +
>> int asoc_qcom_lpass_cpu_dai_probe(struct snd_soc_dai *dai)
>> {
>> struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
>> @@ -856,6 +956,10 @@ int asoc_qcom_lpass_cpu_platform_probe(struct
>> platform_device *pdev)
>> PTR_ERR(drvdata->mi2s_bit_clk[dai_id]));
>> return PTR_ERR(drvdata->mi2s_bit_clk[dai_id]);
>> }
>> + if (drvdata->mi2s_playback_sd_mode[dai_id] ==
>> LPAIF_I2SCTL_MODE_QUAD01) {
>> + variant->dai_driver[dai_id].playback.channels_min = 4;
>> + variant->dai_driver[dai_id].playback.channels_max = 4;
>> + }
>> }
>> /* Allocation for i2sctl regmap fields */
>> diff --git a/sound/soc/qcom/lpass-sc7180.c
>> b/sound/soc/qcom/lpass-sc7180.c
>> index 8c168d3c589e..77a556b27cf0 100644
>> --- a/sound/soc/qcom/lpass-sc7180.c
>> +++ b/sound/soc/qcom/lpass-sc7180.c
>> @@ -58,6 +58,7 @@ static struct snd_soc_dai_driver
>> sc7180_lpass_cpu_dai_driver[] = {
>> },
>> .probe = &asoc_qcom_lpass_cpu_dai_probe,
>> .ops = &asoc_qcom_lpass_cpu_dai_ops,
>> + .pcm_new = lpass_cpu_pcm_new,
>> }, {
>> .id = LPASS_DP_RX,
>> .name = "Hdmi",
>> diff --git a/sound/soc/qcom/lpass.h b/sound/soc/qcom/lpass.h
>> index 83b2e08ade06..fb82591d550c 100644
>> --- a/sound/soc/qcom/lpass.h
>> +++ b/sound/soc/qcom/lpass.h
>> @@ -76,6 +76,9 @@ struct lpass_data {
>> /* regmap backed by the low-power audio interface (LPAIF)
>> registers */
>> struct regmap *lpaif_map;
>> struct regmap *hdmiif_map;
>> + struct snd_pcm_chmap *chmap_info;
>> +
>> + int chmap_idx;
>> /* interrupts from the low-power audio interface (LPAIF) */
>> int lpaif_irq;
>> @@ -259,5 +262,7 @@ void asoc_qcom_lpass_cpu_platform_shutdown(struct
>> platform_device *pdev);
>> int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev);
>> int asoc_qcom_lpass_cpu_dai_probe(struct snd_soc_dai *dai);
>> extern const struct snd_soc_dai_ops asoc_qcom_lpass_cpu_dai_ops;
>> +int lpass_cpu_pcm_new(struct snd_soc_pcm_runtime *rtd,
>> + struct snd_soc_dai *dai);
>> #endif /* __LPASS_H__ */
>>
--
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc.,
is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.
^ permalink raw reply [flat|nested] 3+ messages in thread
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Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2021-05-27 7:33 [PATCH] Asoc: qcom: Add four speaker support on MI2S secondary Srinivasa Rao Mandadapu
2021-05-28 8:36 ` Srinivas Kandagatla
2021-06-09 7:12 ` Srinivasa Rao Mandadapu
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