ASoC: msm: Add support for playback over slimbus2 rx port

This change is to enable native DSD playback and enable native playback
of clips with sampling rate multiple of 44.1KHz.

Add slimbus_2_rx backend dai-link for native DSD (Direct Stream Digital)
audio and 44.1KHz multiples playback.

CRs-Fixed: 1056422
Change-Id: Ib038cf81f29e00c08def789f8f186ca4615d45fc
Signed-off-by: Preetam Singh Ranawat <apranawat@codeaurora.org>

1 files changed, 64 insertions, 4 deletions

diff --git a/sound/soc/msm/msmcobalt.c b/sound/soc/msm/msmcobalt.c
index 5be5137f447f..b0948acf8a71 100644
--- a/sound/soc/msm/msmcobalt.c
+++ b/sound/soc/msm/msmcobalt.c
@@ -51,8 +51,12 @@
 #define SAMPLING_RATE_32KHZ     32000
 #define SAMPLING_RATE_44P1KHZ   44100
 #define SAMPLING_RATE_48KHZ     48000
+#define SAMPLING_RATE_88P2KHZ   88200
 #define SAMPLING_RATE_96KHZ     96000
+#define SAMPLING_RATE_176P4KHZ  176400
 #define SAMPLING_RATE_192KHZ    192000
+#define SAMPLING_RATE_352P8KHZ  352800
+#define SAMPLING_RATE_384KHZ    384000
 
 #define WCD9XXX_MBHC_DEF_BUTTONS    8
 #define WCD9XXX_MBHC_DEF_RLOADS     5
@@ -176,7 +180,8 @@ static const char *const vi_feed_ch_text[] = {"One", "Two"};
 static char const *bit_format_text[] = {"S16_LE", "S24_LE", "S24_3LE"};
 static char const *slim_sample_rate_text[] = {"KHZ_8", "KHZ_16",
 					"KHZ_32", "KHZ_44P1", "KHZ_48",
-					"KHZ_96", "KHZ_192"};
+					"KHZ_88P2", "KHZ_96", "KHZ_176P4",
+					"KHZ_192", "KHZ_352P8", "KHZ_384"};
 static char const *bt_sample_rate_text[] = {"KHZ_8", "KHZ_16", "KHZ_48"};
 static const char *const usb_ch_text[] = {"One", "Two"};
 static char const *ch_text[] = {"Two", "Three", "Four", "Five",
@@ -189,6 +194,7 @@ static char const *hdmi_rx_sample_rate_text[] = {"KHZ_48", "KHZ_96",
 						 "KHZ_192"};
 
 static SOC_ENUM_SINGLE_EXT_DECL(slim_0_rx_chs, slim_rx_ch_text);
+static SOC_ENUM_SINGLE_EXT_DECL(slim_2_rx_chs, slim_rx_ch_text);
 static SOC_ENUM_SINGLE_EXT_DECL(slim_0_tx_chs, slim_tx_ch_text);
 static SOC_ENUM_SINGLE_EXT_DECL(slim_1_tx_chs, slim_tx_ch_text);
 static SOC_ENUM_SINGLE_EXT_DECL(slim_5_rx_chs, slim_rx_ch_text);
@@ -206,6 +212,7 @@ static SOC_ENUM_SINGLE_EXT_DECL(usb_rx_format, bit_format_text);
 static SOC_ENUM_SINGLE_EXT_DECL(usb_tx_format, bit_format_text);
 static SOC_ENUM_SINGLE_EXT_DECL(hdmi_rx_format, bit_format_text);
 static SOC_ENUM_SINGLE_EXT_DECL(slim_0_rx_sample_rate, slim_sample_rate_text);
+static SOC_ENUM_SINGLE_EXT_DECL(slim_2_rx_sample_rate, slim_sample_rate_text);
 static SOC_ENUM_SINGLE_EXT_DECL(slim_0_tx_sample_rate, slim_sample_rate_text);
 static SOC_ENUM_SINGLE_EXT_DECL(slim_5_rx_sample_rate, slim_sample_rate_text);
 static SOC_ENUM_SINGLE_EXT_DECL(slim_6_rx_sample_rate, slim_sample_rate_text);
@@ -278,12 +285,24 @@ static int slim_get_sample_rate_val(int sample_rate)
 	case SAMPLING_RATE_48KHZ:
 		sample_rate_val = 4;
 		break;
-	case SAMPLING_RATE_96KHZ:
+	case SAMPLING_RATE_88P2KHZ:
 		sample_rate_val = 5;
 		break;
-	case SAMPLING_RATE_192KHZ:
+	case SAMPLING_RATE_96KHZ:
 		sample_rate_val = 6;
 		break;
+	case SAMPLING_RATE_176P4KHZ:
+		sample_rate_val = 7;
+		break;
+	case SAMPLING_RATE_192KHZ:
+		sample_rate_val = 8;
+		break;
+	case SAMPLING_RATE_352P8KHZ:
+		sample_rate_val = 9;
+		break;
+	case SAMPLING_RATE_384KHZ:
+		sample_rate_val = 10;
+		break;
 	default:
 		sample_rate_val = 4;
 		break;
@@ -312,11 +331,23 @@ static int slim_get_sample_rate(int value)
 		sample_rate = SAMPLING_RATE_48KHZ;
 		break;
 	case 5:
-		sample_rate = SAMPLING_RATE_96KHZ;
+		sample_rate = SAMPLING_RATE_88P2KHZ;
 		break;
 	case 6:
+		sample_rate = SAMPLING_RATE_96KHZ;
+		break;
+	case 7:
+		sample_rate = SAMPLING_RATE_176P4KHZ;
+		break;
+	case 8:
 		sample_rate = SAMPLING_RATE_192KHZ;
 		break;
+	case 9:
+		sample_rate = SAMPLING_RATE_352P8KHZ;
+		break;
+	case 10:
+		sample_rate = SAMPLING_RATE_384KHZ;
+		break;
 	default:
 		sample_rate = SAMPLING_RATE_48KHZ;
 		break;
@@ -370,6 +401,8 @@ static int slim_get_port_idx(struct snd_kcontrol *kcontrol)
 
 	if (strnstr(kcontrol->id.name, "SLIM_0_RX", sizeof("SLIM_0_RX")))
 		port_id = SLIM_RX_0;
+	else if (strnstr(kcontrol->id.name, "SLIM_2_RX", sizeof("SLIM_2_RX")))
+		port_id = SLIM_RX_2;
 	else if (strnstr(kcontrol->id.name, "SLIM_5_RX", sizeof("SLIM_5_RX")))
 		port_id = SLIM_RX_5;
 	else if (strnstr(kcontrol->id.name, "SLIM_6_RX", sizeof("SLIM_6_RX")))
@@ -1113,6 +1146,8 @@ static int proxy_rx_ch_put(struct snd_kcontrol *kcontrol,
 static const struct snd_kcontrol_new msm_snd_controls[] = {
 	SOC_ENUM_EXT("SLIM_0_RX Channels", slim_0_rx_chs,
 			msm_slim_rx_ch_get, msm_slim_rx_ch_put),
+	SOC_ENUM_EXT("SLIM_2_RX Channels", slim_2_rx_chs,
+			msm_slim_rx_ch_get, msm_slim_rx_ch_put),
 	SOC_ENUM_EXT("SLIM_0_TX Channels", slim_0_tx_chs,
 			msm_slim_tx_ch_get, msm_slim_tx_ch_put),
 	SOC_ENUM_EXT("SLIM_1_TX Channels", slim_1_tx_chs,
@@ -1147,6 +1182,8 @@ static const struct snd_kcontrol_new msm_snd_controls[] = {
 			hdmi_rx_format_get, hdmi_rx_format_put),
 	SOC_ENUM_EXT("SLIM_0_RX SampleRate", slim_0_rx_sample_rate,
 			slim_rx_sample_rate_get, slim_rx_sample_rate_put),
+	SOC_ENUM_EXT("SLIM_2_RX SampleRate", slim_2_rx_sample_rate,
+			slim_rx_sample_rate_get, slim_rx_sample_rate_put),
 	SOC_ENUM_EXT("SLIM_0_TX SampleRate", slim_0_tx_sample_rate,
 			slim_tx_sample_rate_get, slim_tx_sample_rate_put),
 	SOC_ENUM_EXT("SLIM_5_RX SampleRate", slim_5_rx_sample_rate,
@@ -1261,6 +1298,9 @@ static int msm_slim_get_ch_from_beid(int32_t be_id)
 	case MSM_BACKEND_DAI_SLIMBUS_1_RX:
 		ch_id = SLIM_RX_1;
 		break;
+	case MSM_BACKEND_DAI_SLIMBUS_2_RX:
+		ch_id = SLIM_RX_2;
+		break;
 	case MSM_BACKEND_DAI_SLIMBUS_3_RX:
 		ch_id = SLIM_RX_3;
 		break;
@@ -1303,6 +1343,7 @@ static int msm_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
 	switch (dai_link->be_id) {
 	case MSM_BACKEND_DAI_SLIMBUS_0_RX:
 	case MSM_BACKEND_DAI_SLIMBUS_1_RX:
+	case MSM_BACKEND_DAI_SLIMBUS_2_RX:
 	case MSM_BACKEND_DAI_SLIMBUS_3_RX:
 	case MSM_BACKEND_DAI_SLIMBUS_4_RX:
 	case MSM_BACKEND_DAI_SLIMBUS_6_RX:
@@ -1877,6 +1918,10 @@ static int msm_snd_hw_params(struct snd_pcm_substream *substream,
 			pr_debug("%s: rx_5_ch=%d\n", __func__,
 				  slim_rx_cfg[5].channels);
 			rx_ch_count = slim_rx_cfg[5].channels;
+		} else if (dai_link->be_id == MSM_BACKEND_DAI_SLIMBUS_2_RX) {
+			pr_debug("%s: rx_2_ch=%d\n", __func__,
+				 slim_rx_cfg[2].channels);
+			rx_ch_count = slim_rx_cfg[2].channels;
 		} else if (dai_link->be_id == MSM_BACKEND_DAI_SLIMBUS_6_RX) {
 			pr_debug("%s: rx_6_ch=%d\n", __func__,
 				  slim_rx_cfg[6].channels);
@@ -3102,6 +3147,21 @@ static struct snd_soc_dai_link msm_tavil_be_dai_links[] = {
 		.ignore_suspend = 1,
 	},
 	{
+		.name = LPASS_BE_SLIMBUS_2_RX,
+		.stream_name = "Slimbus2 Playback",
+		.cpu_dai_name = "msm-dai-q6-dev.16388",
+		.platform_name = "msm-pcm-routing",
+		.codec_name = "tavil_codec",
+		.codec_dai_name = "tavil_rx2",
+		.no_pcm = 1,
+		.dpcm_playback = 1,
+		.be_id = MSM_BACKEND_DAI_SLIMBUS_2_RX,
+		.be_hw_params_fixup = msm_be_hw_params_fixup,
+		.ops = &msm_be_ops,
+		.ignore_pmdown_time = 1,
+		.ignore_suspend = 1,
+	},
+	{
 		.name = LPASS_BE_SLIMBUS_3_RX,
 		.stream_name = "Slimbus3 Playback",
 		.cpu_dai_name = "msm-dai-q6-dev.16390",