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* [PATCH v2] ASoC: qcom: Add four speaker support on MI2S secondary
@ 2021-06-09  7:13 Srinivasa Rao Mandadapu
  2021-06-09  8:10 ` Srinivas Kandagatla
  0 siblings, 1 reply; 3+ messages in thread
From: Srinivasa Rao Mandadapu @ 2021-06-09  7:13 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>
---
Changes Since V1:
	-- removed set_channel_map/get_channel_map implementation as default kcontrols
		added in pcm_new API.
		
 sound/soc/qcom/lpass-cpu.c    | 32 ++++++++++++++++++++++++++++++++
 sound/soc/qcom/lpass-sc7180.c |  1 +
 sound/soc/qcom/lpass.h        |  2 ++
 3 files changed, 35 insertions(+)

diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c
index c62d2612e8f5..15d69e311b38 100644
--- a/sound/soc/qcom/lpass-cpu.c
+++ b/sound/soc/qcom/lpass-cpu.c
@@ -29,6 +29,14 @@
 #define LPASS_CPU_I2S_SD0_1_2_MASK	GENMASK(2, 0)
 #define LPASS_CPU_I2S_SD0_1_2_3_MASK	GENMASK(3, 0)
 
+/*
+ * Channel maps for Quad channel playbacks on MI2S Secondary
+ */
+static struct snd_pcm_chmap_elem lpass_quad_chmaps = {
+		.channels = 4,
+		.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_RL,
+				SNDRV_CHMAP_FR, SNDRV_CHMAP_RR }
+};
 static int lpass_cpu_init_i2sctl_bitfields(struct device *dev,
 			struct lpaif_i2sctl *i2sctl, struct regmap *map)
 {
@@ -324,6 +332,25 @@ const struct snd_soc_dai_ops asoc_qcom_lpass_cpu_dai_ops = {
 };
 EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_dai_ops);
 
+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);
+
+	if (drvdata->mi2s_playback_sd_mode[dai->id] == LPAIF_I2SCTL_MODE_QUAD01) {
+		ret =  snd_pcm_add_chmap_ctls(rtd->pcm, SNDRV_PCM_STREAM_PLAYBACK,
+				&lpass_quad_chmaps, drv->playback.channels_max, 0,
+				NULL);
+		if (ret < 0)
+			return ret;
+	}
+
+	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 +883,11 @@ 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..623ddccdafff 100644
--- a/sound/soc/qcom/lpass.h
+++ b/sound/soc/qcom/lpass.h
@@ -259,5 +259,7 @@ 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 v2] ASoC: qcom: Add four speaker support on MI2S secondary
  2021-06-09  7:13 [PATCH v2] ASoC: qcom: Add four speaker support on MI2S secondary Srinivasa Rao Mandadapu
@ 2021-06-09  8:10 ` Srinivas Kandagatla
  2021-06-09 13:25   ` Srinivasa Rao Mandadapu
  0 siblings, 1 reply; 3+ messages in thread
From: Srinivas Kandagatla @ 2021-06-09  8:10 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



On 09/06/2021 08:13, 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>
> ---
> Changes Since V1:
> 	-- removed set_channel_map/get_channel_map implementation as default kcontrols
> 		added in pcm_new API.
> 		
>   sound/soc/qcom/lpass-cpu.c    | 32 ++++++++++++++++++++++++++++++++
>   sound/soc/qcom/lpass-sc7180.c |  1 +
>   sound/soc/qcom/lpass.h        |  2 ++
>   3 files changed, 35 insertions(+)
> 
> diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c
> index c62d2612e8f5..15d69e311b38 100644
> --- a/sound/soc/qcom/lpass-cpu.c
> +++ b/sound/soc/qcom/lpass-cpu.c
> @@ -29,6 +29,14 @@
>   #define LPASS_CPU_I2S_SD0_1_2_MASK	GENMASK(2, 0)
>   #define LPASS_CPU_I2S_SD0_1_2_3_MASK	GENMASK(3, 0)
>   
> +/*
> + * Channel maps for Quad channel playbacks on MI2S Secondary
> + */
> +static struct snd_pcm_chmap_elem lpass_quad_chmaps = {
> +		.channels = 4,
> +		.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_RL,
> +				SNDRV_CHMAP_FR, SNDRV_CHMAP_RR }

AFAIU, You would need an empty entry at the end of this list if not we 
will endup in a dereferencing memory sitting right next to this array 
which will lead to random memory corruptions...

Have a look at some of the examples in existing codec drivers.

Other than that patch looks good.

--srini


> +};
>   static int lpass_cpu_init_i2sctl_bitfields(struct device *dev,
>   			struct lpaif_i2sctl *i2sctl, struct regmap *map)
>   {
> @@ -324,6 +332,25 @@ const struct snd_soc_dai_ops asoc_qcom_lpass_cpu_dai_ops = {
>   };
>   EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_dai_ops);
>   
> +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);
> +
> +	if (drvdata->mi2s_playback_sd_mode[dai->id] == LPAIF_I2SCTL_MODE_QUAD01) {
> +		ret =  snd_pcm_add_chmap_ctls(rtd->pcm, SNDRV_PCM_STREAM_PLAYBACK,
> +				&lpass_quad_chmaps, drv->playback.channels_max, 0,
> +				NULL);
> +		if (ret < 0)
> +			return ret;
> +	}
> +
> +	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 +883,11 @@ 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..623ddccdafff 100644
> --- a/sound/soc/qcom/lpass.h
> +++ b/sound/soc/qcom/lpass.h
> @@ -259,5 +259,7 @@ 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 v2] ASoC: qcom: Add four speaker support on MI2S secondary
  2021-06-09  8:10 ` Srinivas Kandagatla
@ 2021-06-09 13:25   ` Srinivasa Rao Mandadapu
  0 siblings, 0 replies; 3+ messages in thread
From: Srinivasa Rao Mandadapu @ 2021-06-09 13:25 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 Time!!!

On 6/9/2021 1:40 PM, Srinivas Kandagatla wrote:
>
>
> On 09/06/2021 08:13, 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>
>> ---
>> Changes Since V1:
>>     -- removed set_channel_map/get_channel_map implementation as 
>> default kcontrols
>>         added in pcm_new API.
>>
>>   sound/soc/qcom/lpass-cpu.c    | 32 ++++++++++++++++++++++++++++++++
>>   sound/soc/qcom/lpass-sc7180.c |  1 +
>>   sound/soc/qcom/lpass.h        |  2 ++
>>   3 files changed, 35 insertions(+)
>>
>> diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c
>> index c62d2612e8f5..15d69e311b38 100644
>> --- a/sound/soc/qcom/lpass-cpu.c
>> +++ b/sound/soc/qcom/lpass-cpu.c
>> @@ -29,6 +29,14 @@
>>   #define LPASS_CPU_I2S_SD0_1_2_MASK    GENMASK(2, 0)
>>   #define LPASS_CPU_I2S_SD0_1_2_3_MASK    GENMASK(3, 0)
>>   +/*
>> + * Channel maps for Quad channel playbacks on MI2S Secondary
>> + */
>> +static struct snd_pcm_chmap_elem lpass_quad_chmaps = {
>> +        .channels = 4,
>> +        .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_RL,
>> +                SNDRV_CHMAP_FR, SNDRV_CHMAP_RR }
>
> AFAIU, You would need an empty entry at the end of this list if not we 
> will endup in a dereferencing memory sitting right next to this array 
> which will lead to random memory corruptions...
>
> Have a look at some of the examples in existing codec drivers.
>
> Other than that patch looks good.
>
> --srini
Okay. Will change accordingly.
>
>
>> +};
>>   static int lpass_cpu_init_i2sctl_bitfields(struct device *dev,
>>               struct lpaif_i2sctl *i2sctl, struct regmap *map)
>>   {
>> @@ -324,6 +332,25 @@ const struct snd_soc_dai_ops 
>> asoc_qcom_lpass_cpu_dai_ops = {
>>   };
>>   EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_dai_ops);
>>   +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);
>> +
>> +    if (drvdata->mi2s_playback_sd_mode[dai->id] == 
>> LPAIF_I2SCTL_MODE_QUAD01) {
>> +        ret =  snd_pcm_add_chmap_ctls(rtd->pcm, 
>> SNDRV_PCM_STREAM_PLAYBACK,
>> +                &lpass_quad_chmaps, drv->playback.channels_max, 0,
>> +                NULL);
>> +        if (ret < 0)
>> +            return ret;
>> +    }
>> +
>> +    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 +883,11 @@ 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..623ddccdafff 100644
>> --- a/sound/soc/qcom/lpass.h
>> +++ b/sound/soc/qcom/lpass.h
>> @@ -259,5 +259,7 @@ 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

end of thread, other threads:[~2021-06-09 13:26 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2021-06-09  7:13 [PATCH v2] ASoC: qcom: Add four speaker support on MI2S secondary Srinivasa Rao Mandadapu
2021-06-09  8:10 ` Srinivas Kandagatla
2021-06-09 13:25   ` Srinivasa Rao Mandadapu

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