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Commit 557127c1 authored by Vidyakumar Athota's avatar Vidyakumar Athota
Browse files

ASoC: apq8084: Add voice call support in APQ8084 



Add voice stub front-end and back end DAIs in APQ8084 machine
driver to support voice calls

Change-Id: If43f765b628cf3a9b978a7015b0780cb55b5820a
Signed-off-by: default avatarVidyakumar Athota <vathota@codeaurora.org>
parent b9b916ae

sound/soc/msm/apq8084.c

+361 −28
Original line number Diff line number Diff line
@@ -41,6 +41,8 @@ 
static int slim0_rx_bit_format = SNDRV_PCM_FORMAT_S16_LE;

static int hdmi_rx_bit_format = SNDRV_PCM_FORMAT_S16_LE;



#define SAMPLING_RATE_8KHZ 8000

#define SAMPLING_RATE_16KHZ 16000

#define SAMPLING_RATE_48KHZ 48000

#define SAMPLING_RATE_96KHZ 96000

#define SAMPLING_RATE_192KHZ 192000
@@ -179,6 +181,20 @@ struct apq8084_liquid_dock_dev { 


static struct apq8084_liquid_dock_dev *apq8084_liquid_dock_dev;



/* Shared channel numbers for Slimbus ports that connect APQ to MDM. */

enum {

	SLIM_1_RX_1 = 160, /* BT-SCO TX and USB TX */

	SLIM_1_TX_1 = 161, /* BT-SCO RX and USB RX1 */

	SLIM_1_TX_2 = 162, /* USB RX2 */

	SLIM_3_RX_1 = 167, /* External echo-cancellation ref */

	SLIM_3_RX_2 = 168, /* External echo-cancellation ref */

	SLIM_3_TX_1 = 169, /* HDMI RX */

	SLIM_3_TX_2 = 170, /* HDMI RX */

	SLIM_4_TX_1 = 163, /* In-call recording RX */

	SLIM_4_TX_2 = 164, /* In-call recording RX */

	SLIM_4_RX_1 = 165, /* In-call music delivery TX */

};



static struct platform_device *spdev;

static struct regulator *ext_spk_amp_regulator;

static int ext_spk_amp_gpio = -1;
@@ -194,6 +210,11 @@ static int slim0_rx_sample_rate = SAMPLING_RATE_48KHZ; 
static int msm_proxy_rx_ch = 2;

static int hdmi_rx_sample_rate = SAMPLING_RATE_48KHZ;



static int msm_slim_1_rate = SAMPLING_RATE_8KHZ;

static int msm_slim_1_rx_ch = 1;

static int msm_slim_1_tx_ch = 1;

static int msm_slim_3_rx_ch = 1;



static struct mutex cdc_mclk_mutex;

static struct clk *codec_clk;

static int clk_users;
@@ -656,10 +677,10 @@ static const char *const proxy_rx_ch_text[] = {"One", "Two", "Three", "Four", 


static char const *hdmi_rx_sample_rate_text[] = {"KHZ_48", "KHZ_96",

						 "KHZ_192"};

static const char *const btsco_rate_text[] = {"8000", "16000"};

static const struct soc_enum msm_btsco_enum[] = {

	SOC_ENUM_SINGLE_EXT(2, btsco_rate_text),

};



static const char * const slim1_tx_ch_text[] = {"One", "Two"};

static const char * const slim3_rx_ch_text[] = {"One", "Two"};

static const char *const slim1_rate_text[] = {"8000", "16000", "48000"};



static int slim0_rx_sample_rate_get(struct snd_kcontrol *kcontrol,

	struct snd_ctl_elem_value *ucontrol)
@@ -780,6 +801,76 @@ static int msm_slim_0_tx_ch_put(struct snd_kcontrol *kcontrol, 
	return 1;

}



static int msm_slim_1_tx_ch_get(struct snd_kcontrol *kcontrol,

				struct snd_ctl_elem_value *ucontrol)

{

	pr_debug("%s: msm_slim_1_tx_ch  = %d\n", __func__,

		 msm_slim_1_tx_ch);



	ucontrol->value.integer.value[0] = msm_slim_1_tx_ch - 1;

	return 0;

}



static int msm_slim_1_tx_ch_put(struct snd_kcontrol *kcontrol,

				struct snd_ctl_elem_value *ucontrol)

{

	msm_slim_1_tx_ch = ucontrol->value.integer.value[0] + 1;



	pr_debug("%s: msm_slim_1_tx_ch = %d\n", __func__,

		 msm_slim_1_tx_ch);

	return 1;

}



static int msm_slim_1_rate_get(struct snd_kcontrol *kcontrol,

			       struct snd_ctl_elem_value *ucontrol)

{

	pr_debug("%s: msm_slim_1_rate  = %d", __func__,

		 msm_slim_1_rate);



	ucontrol->value.integer.value[0] = msm_slim_1_rate;

	return 0;

}



static int msm_slim_1_rate_put(struct snd_kcontrol *kcontrol,

			       struct snd_ctl_elem_value *ucontrol)

{

	switch (ucontrol->value.integer.value[0]) {

	case 16000:

		msm_slim_1_rate = SAMPLING_RATE_16KHZ;

		break;

	case 48000:

		msm_slim_1_rate = SAMPLING_RATE_48KHZ;

		break;

	case 8000:

	default:

		msm_slim_1_rate = SAMPLING_RATE_8KHZ;

		break;

	}

	pr_debug("%s: msm_slim_1_rate = %d\n", __func__,

		 msm_slim_1_rate);

	return 0;

}



static int msm_slim_3_rx_ch_get(struct snd_kcontrol *kcontrol,

				struct snd_ctl_elem_value *ucontrol)

{

	pr_debug("%s: msm_slim_3_rx_ch  = %d\n", __func__,

		 msm_slim_3_rx_ch);



	ucontrol->value.integer.value[0] = msm_slim_3_rx_ch - 1;

	return 0;

}



static int msm_slim_3_rx_ch_put(struct snd_kcontrol *kcontrol,

				struct snd_ctl_elem_value *ucontrol)

{

	msm_slim_3_rx_ch = ucontrol->value.integer.value[0] + 1;



	pr_debug("%s: msm_slim_3_rx_ch = %d\n", __func__,

		 msm_slim_3_rx_ch);

	return 1;

}



static int hdmi_rx_bit_format_get(struct snd_kcontrol *kcontrol,

				  struct snd_ctl_elem_value *ucontrol)

{
@@ -1217,6 +1308,64 @@ static int msm_slim_5_tx_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, 
	return 0;

}



static int msm_slim_1_rx_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,

					    struct snd_pcm_hw_params *params)

{

	struct snd_interval *rate = hw_param_interval(params,

						      SNDRV_PCM_HW_PARAM_RATE);



	struct snd_interval *channels = hw_param_interval(params,

						SNDRV_PCM_HW_PARAM_CHANNELS);



	rate->min = rate->max = msm_slim_1_rate;

	channels->min = channels->max = msm_slim_1_rx_ch;

	return 0;

}



static int msm_slim_1_tx_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,

					    struct snd_pcm_hw_params *params)

{

	struct snd_interval *rate = hw_param_interval(params,

						      SNDRV_PCM_HW_PARAM_RATE);



	struct snd_interval *channels = hw_param_interval(params,

						SNDRV_PCM_HW_PARAM_CHANNELS);



	rate->min = rate->max = msm_slim_1_rate;

	channels->min = channels->max = msm_slim_1_tx_ch;

	return 0;

}



static int msm_slim_3_rx_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,

					    struct snd_pcm_hw_params *params)

{

	struct snd_interval *rate = hw_param_interval(params,

						SNDRV_PCM_HW_PARAM_RATE);



	struct snd_interval *channels = hw_param_interval(params,

						SNDRV_PCM_HW_PARAM_CHANNELS);



	pr_debug("%s()\n", __func__);

	rate->min = rate->max = 48000;

	channels->min = channels->max = msm_slim_3_rx_ch;

	return 0;

}



static int msm_slim_3_tx_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,

					    struct snd_pcm_hw_params *params)

{

	struct snd_interval *rate = hw_param_interval(params,

						SNDRV_PCM_HW_PARAM_RATE);



	struct snd_interval *channels = hw_param_interval(params,

						SNDRV_PCM_HW_PARAM_CHANNELS);



	pr_debug("%s()\n", __func__);

	rate->min = rate->max = 48000;

	channels->min = channels->max = 2;

	return 0;

}



static int msm_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,

				  struct snd_pcm_hw_params *params)

{
@@ -1237,6 +1386,9 @@ static const struct soc_enum msm_snd_enum[] = { 
	SOC_ENUM_SINGLE_EXT(3, slim0_rx_sample_rate_text),

	SOC_ENUM_SINGLE_EXT(8, proxy_rx_ch_text),

	SOC_ENUM_SINGLE_EXT(3, hdmi_rx_sample_rate_text),

	SOC_ENUM_SINGLE_EXT(2, slim1_tx_ch_text),

	SOC_ENUM_SINGLE_EXT(3, slim1_rate_text),

	SOC_ENUM_SINGLE_EXT(3, slim3_rx_ch_text),

};



static const struct snd_kcontrol_new msm_snd_controls[] = {
@@ -1260,6 +1412,12 @@ static const struct snd_kcontrol_new msm_snd_controls[] = { 
			msm_proxy_rx_ch_get, msm_proxy_rx_ch_put),

	SOC_ENUM_EXT("HDMI_RX SampleRate", msm_snd_enum[7],

			hdmi_rx_sample_rate_get, hdmi_rx_sample_rate_put),

	SOC_ENUM_EXT("SLIM_1_TX Channels", msm_snd_enum[8],

			msm_slim_1_tx_ch_get, msm_slim_1_tx_ch_put),

	SOC_ENUM_EXT("SLIM_1 SampleRate", msm_snd_enum[9],

			msm_slim_1_rate_get, msm_slim_1_rate_put),

	SOC_ENUM_EXT("SLIM_3_RX Channels", msm_snd_enum[10],

			msm_slim_3_rx_ch_get, msm_slim_3_rx_ch_put),

};



static bool apq8084_swap_gnd_mic(struct snd_soc_codec *codec)
@@ -1479,10 +1637,20 @@ out: 
	return err;

}



static int msm_stubrx_init(struct snd_soc_pcm_runtime *rtd)

{

	rtd->pmdown_time = 0;

	return 0;

}



static int apq8084_snd_startup(struct snd_pcm_substream *substream)

{

	pr_debug("%s(): substream = %s  stream = %d\n", __func__,

		 substream->name, substream->stream);

	struct snd_soc_pcm_runtime *rtd = substream->private_data;



	pr_debug("%s(): dai_link_str_name = %s cpu_dai = %s codec_dai = %s\n",

		  __func__, rtd->dai_link->stream_name,

		  rtd->dai_link->cpu_dai_name,

		  rtd->dai_link->codec_dai_name);

	return 0;

}
@@ -1599,12 +1767,18 @@ static int msm_snd_hw_params(struct snd_pcm_substream *substream, 
			pr_err("%s: failed to get codec chan map\n", __func__);

			goto end;

		}

		/* For tabla_tx1 case */

		/* For taiko_tx1 case */

		if (codec_dai->id == 1)

			user_set_tx_ch = msm_slim_0_tx_ch;

		/* For tabla_tx2 case */

		/* For taiko_tx2 case */

		else if (codec_dai->id == 3)

			user_set_tx_ch = params_channels(params);

		else if (codec_dai->id == 5)

			/* DAI 5 is used for external EC reference from codec.

			 * Since Rx is fed as reference for EC, the config of

			 * this DAI is based on that of the Rx path.

			 */

			user_set_tx_ch = msm_slim_0_rx_ch;

		else

			user_set_tx_ch = tx_ch_cnt;
@@ -1624,8 +1798,11 @@ end: 


static void apq8084_snd_shudown(struct snd_pcm_substream *substream)

{

	pr_debug("%s(): substream = %s stream = %d\n", __func__,

		 substream->name, substream->stream);

	struct snd_soc_pcm_runtime *rtd = substream->private_data;



	pr_debug("%s(): dai_link_str_name = %s cpu_dai = %s codec_dai = %s\n",

		  __func__, rtd->dai_link->stream_name,

		  rtd->dai_link->cpu_dai_name, rtd->dai_link->codec_dai_name);

}



static struct snd_soc_ops apq8084_be_ops = {
@@ -1683,12 +1860,95 @@ end: 
	return ret;

}



static int apq8084_slimbus_1_hw_params(struct snd_pcm_substream *substream,

				       struct snd_pcm_hw_params *params)

{

	struct snd_soc_pcm_runtime *rtd = substream->private_data;

	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;

	int ret = 0;

	unsigned int rx_ch = SLIM_1_RX_1, tx_ch[2] = {SLIM_1_TX_1, SLIM_1_TX_2};



	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {

		pr_debug("%s: APQ USB TX -> SLIMBUS_1_RX -> MDM TX shared ch %d\n",

			 __func__, rx_ch);



		ret = snd_soc_dai_set_channel_map(cpu_dai, 0, 0, 1, &rx_ch);

		if (ret < 0) {

			pr_err("%s: Erorr %d setting SLIMBUS_1 RX channel map\n",

				__func__, ret);

			goto end;

		}

	} else {

		pr_debug("%s: MDM RX ->SLIMBUS_1_TX ->APQ USB Rx shared ch %d %d\n",

			  __func__, tx_ch[0], tx_ch[1]);



		ret = snd_soc_dai_set_channel_map(cpu_dai, msm_slim_1_tx_ch,

						  tx_ch, 0, 0);

		if (ret < 0) {

			pr_err("%s: Erorr %d setting SLIMBUS_1 TX channel map\n",

				__func__, ret);

			goto end;

		}

	}



end:

	return ret;

}



static int apq8084_slimbus_3_hw_params(struct snd_pcm_substream *substream,

				       struct snd_pcm_hw_params *params)

{

	struct snd_soc_pcm_runtime *rtd = substream->private_data;

	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;

	int ret = 0;

	unsigned int rx_ch[2] = {SLIM_3_RX_1, SLIM_3_RX_2};

	unsigned int tx_ch[2] = {SLIM_3_TX_1, SLIM_3_TX_2};



	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {

		pr_debug("%s: SLIMBUS_3_RX_ch %d, sch %d %d\n",

			 __func__, msm_slim_3_rx_ch, rx_ch[0], rx_ch[1]);



		ret = snd_soc_dai_set_channel_map(cpu_dai, 0, 0,

						  msm_slim_3_rx_ch, rx_ch);

		if (ret < 0) {

			pr_err("%s: Erorr %d setting SLIMBUS_3 RX channel map\n",

				__func__, ret);

			goto end;

		}

	} else {

		pr_debug("%s: MDM RX -> SLIMBUS_3_TX -> APQ HDMI ch: %d, %d\n",

			 __func__, tx_ch[0], tx_ch[1]);



		ret = snd_soc_dai_set_channel_map(cpu_dai, 2, tx_ch, 0, 0);

		if (ret < 0) {

			pr_err("%s: Erorr %d setting SLIMBUS_3 TX channel map\n",

				__func__, ret);

			goto end;

		}

	}



end:

	return ret;

}



static struct snd_soc_ops apq8084_slimbus_1_be_ops = {

	.startup = apq8084_snd_startup,

	.hw_params = apq8084_slimbus_1_hw_params,

	.shutdown = apq8084_snd_shudown,

};



static struct snd_soc_ops apq8084_slimbus_2_be_ops = {

	.startup = apq8084_snd_startup,

	.hw_params = apq8084_slimbus_2_hw_params,

	.shutdown = apq8084_snd_shudown,

};



static struct snd_soc_ops apq8084_slimbus_3_be_ops = {

	.startup = apq8084_snd_startup,

	.hw_params = apq8084_slimbus_3_hw_params,

	.shutdown = apq8084_snd_shudown,

};



/* Digital audio interface glue - connects codec <---> CPU */

static struct snd_soc_dai_link apq8084_common_dai_links[] = {

	/* FrontEnd DAI Links */
@@ -1972,6 +2232,36 @@ static struct snd_soc_dai_link apq8084_common_dai_links[] = { 
		 /* this dai link has playback support */

		.be_id = MSM_FRONTEND_DAI_MULTIMEDIA8,

	},

	/* Voice Stub */

	{

		.name = "Voice Stub",

		.stream_name = "Voice Stub",

		.cpu_dai_name = "VOICE_STUB",

		.platform_name = "msm-pcm-hostless",

		.dynamic = 1,

		.trigger = {SND_SOC_DPCM_TRIGGER_POST,

		 SND_SOC_DPCM_TRIGGER_POST},

		.no_host_mode = SND_SOC_DAI_LINK_NO_HOST,

		.ignore_suspend = 1,

		/* this dainlink has playback support */

		.ignore_pmdown_time = 1,

		.codec_dai_name = "snd-soc-dummy-dai",

		.codec_name = "snd-soc-dummy",

	},

	{

		.name = "VoLTE Stub",

		.stream_name = "VoLTE Stub",

		.cpu_dai_name   = "VOLTE_STUB",

		.platform_name  = "msm-pcm-hostless",

		.dynamic = 1,

		.trigger = {SND_SOC_DPCM_TRIGGER_POST,

				SND_SOC_DPCM_TRIGGER_POST},

		.no_host_mode = SND_SOC_DAI_LINK_NO_HOST,

		.ignore_suspend = 1,

		.ignore_pmdown_time = 1,

		.codec_dai_name = "snd-soc-dummy-dai",

		.codec_name = "snd-soc-dummy",

	},

	/* HDMI Hostless */

	{

		.name = "HDMI_RX_HOSTLESS",
@@ -2144,13 +2434,13 @@ static struct snd_soc_dai_link apq8084_common_dai_links[] = { 
		.stream_name = "Slimbus1 Playback",

		.cpu_dai_name = "msm-dai-q6-dev.16386",

		.platform_name = "msm-pcm-routing",

		.codec_name = "taiko_codec",

		.codec_dai_name	= "taiko_rx1",

		.codec_name = "msm-stub-codec.1",

		.codec_dai_name	= "msm-stub-rx",

		.no_pcm = 1,

		.be_id = MSM_BACKEND_DAI_SLIMBUS_1_RX,

		.be_hw_params_fixup = msm_slim_0_rx_be_hw_params_fixup,

		.ops = &apq8084_be_ops,

		/* this dai link has playback support */

		.be_hw_params_fixup = msm_slim_1_rx_be_hw_params_fixup,

		.ops = &apq8084_slimbus_1_be_ops,

		/* dai link has playback support */

		.ignore_pmdown_time = 1,

		.ignore_suspend = 1,

	},
@@ -2159,12 +2449,12 @@ static struct snd_soc_dai_link apq8084_common_dai_links[] = { 
		.stream_name = "Slimbus1 Capture",

		.cpu_dai_name = "msm-dai-q6-dev.16387",

		.platform_name = "msm-pcm-routing",

		.codec_name = "taiko_codec",

		.codec_dai_name	= "taiko_tx1",

		.codec_name = "msm-stub-codec.1",

		.codec_dai_name	= "msm-stub-tx",

		.no_pcm = 1,

		.be_id = MSM_BACKEND_DAI_SLIMBUS_1_TX,

		.be_hw_params_fixup = msm_slim_0_tx_be_hw_params_fixup,

		.ops = &apq8084_be_ops,

		.be_hw_params_fixup = msm_slim_1_tx_be_hw_params_fixup,

		.ops = &apq8084_slimbus_1_be_ops,

		.ignore_suspend = 1,

	},

	{
@@ -2172,13 +2462,13 @@ static struct snd_soc_dai_link apq8084_common_dai_links[] = { 
		.stream_name = "Slimbus3 Playback",

		.cpu_dai_name = "msm-dai-q6-dev.16390",

		.platform_name = "msm-pcm-routing",

		.codec_name = "taiko_codec",

		.codec_dai_name	= "taiko_rx1",

		.codec_name = "msm-stub-codec.1",

		.codec_dai_name	= "msm-stub-rx",

		.no_pcm = 1,

		.be_id = MSM_BACKEND_DAI_SLIMBUS_3_RX,

		.be_hw_params_fixup = msm_slim_0_rx_be_hw_params_fixup,

		.ops = &apq8084_be_ops,

		/* this dai link has playback support */

		.be_hw_params_fixup = msm_slim_3_rx_be_hw_params_fixup,

		.ops = &apq8084_slimbus_3_be_ops,

		/* dai link has playback support */

		.ignore_pmdown_time = 1,

		.ignore_suspend = 1,

	},
@@ -2187,12 +2477,12 @@ static struct snd_soc_dai_link apq8084_common_dai_links[] = { 
		.stream_name = "Slimbus3 Capture",

		.cpu_dai_name = "msm-dai-q6-dev.16391",

		.platform_name = "msm-pcm-routing",

		.codec_name = "taiko_codec",

		.codec_dai_name	= "taiko_tx1",

		.codec_name = "msm-stub-codec.1",

		.codec_dai_name	= "msm-stub-tx",

		.no_pcm = 1,

		.be_id = MSM_BACKEND_DAI_SLIMBUS_3_TX,

		.be_hw_params_fixup = msm_slim_0_tx_be_hw_params_fixup,

		.ops = &apq8084_be_ops,

		.be_hw_params_fixup = msm_slim_3_tx_be_hw_params_fixup,

		.ops = &apq8084_slimbus_3_be_ops,

		.ignore_suspend = 1,

	},

	{
@@ -2262,6 +2552,49 @@ static struct snd_soc_dai_link apq8084_common_dai_links[] = { 
		.be_hw_params_fixup = msm_be_hw_params_fixup,

		.ignore_suspend = 1,

	},

	{

		.name = LPASS_BE_STUB_RX,

		.stream_name = "Stub Playback",

		.cpu_dai_name = "msm-dai-stub-dev.0",

		.platform_name = "msm-pcm-routing",

		.codec_name = "taiko_codec",

		.codec_dai_name = "taiko_rx2",

		.no_pcm = 1,

		.be_id = MSM_BACKEND_DAI_EXTPROC_RX,

		.be_hw_params_fixup = msm_slim_0_rx_be_hw_params_fixup,

		.init = &msm_stubrx_init,

		.ops = &apq8084_be_ops,

		/* this dainlink has playback support */

		.ignore_pmdown_time = 1,

	},

	{

		.name = LPASS_BE_STUB_TX,

		.stream_name = "Stub Capture",

		.cpu_dai_name = "msm-dai-stub-dev.1",

		.platform_name = "msm-pcm-routing",

		.codec_name = "taiko_codec",

		.codec_dai_name = "taiko_tx1",

		.no_pcm = 1,

		.be_id = MSM_BACKEND_DAI_EXTPROC_TX,

		.be_hw_params_fixup = msm_slim_0_tx_be_hw_params_fixup,

		.ops = &apq8084_be_ops,

	},

	{

		.name = LPASS_BE_STUB_1_TX,

		.stream_name = "Stub1 Capture",

		.cpu_dai_name = "msm-dai-stub-dev.3",

		.platform_name = "msm-pcm-routing",

		.codec_name     = "taiko_codec",

		.codec_dai_name	= "taiko_tx3",

		.no_pcm = 1,

		.be_id = MSM_BACKEND_DAI_EXTPROC_EC_TX,

		/* This BE is used for external EC reference from codec. Since

		 * Rx is fed as reference for EC, the config of this DAI is

		 * based on that of the Rx path.

		 */

		.be_hw_params_fixup = msm_slim_0_rx_be_hw_params_fixup,

		.ops = &apq8084_be_ops,

	},

};



static struct snd_soc_dai_link apq8084_hdmi_dai_link[] = {