asoc:support for DSD on MI2S interface

Add support for DSD in MI2S interface and corresponding api updates
from ADSP.

Change-Id: I494205763fa429f95e43497ed5b8f91332f5a2a3
Signed-off-by: Sanjana B <[email protected]>

asoc/msm-compress-q6-v2.c

@@ -1388,7 +1388,7 @@ static int msm_compr_send_media_format_block(struct snd_compr_stream *cstream,
 		dsd_cfg.dsd_data_rate = prtd->sample_rate;
 		dsd_cfg.num_version = 0;
 		dsd_cfg.is_bitwise_big_endian = 1;
-		dsd_cfg.dsd_channel_block_size = 1;
+		dsd_cfg.dsd_channel_block_size = 4;
 		ret = q6asm_media_format_block_dsd(prtd->audio_client,
 						   &dsd_cfg, stream_id);
 		if (ret < 0)

asoc/msm-dai-q6-v2.c

@@ -331,7 +331,8 @@ static const char *const mi2s_format[] = {
 	"NA6",
 	"NA7",
 	"NA8",
-	"DSD_DOP_W_MARKER"
+	"DSD_DOP_W_MARKER",
+	"NATIVE_DSD_DATA"
 };
 
 static const char *const mi2s_vi_feed_mono[] = {
@@ -340,7 +341,7 @@ static const char *const mi2s_vi_feed_mono[] = {
 };
 
 static const struct soc_enum mi2s_config_enum[] = {
-	SOC_ENUM_SINGLE_EXT(10, mi2s_format),
+	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(mi2s_format), mi2s_format),
 	SOC_ENUM_SINGLE_EXT(2, mi2s_vi_feed_mono),
 };
 
@@ -5895,6 +5896,7 @@ static int msm_dai_q6_mi2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 
 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 	case SND_SOC_DAIFMT_CBS_CFS:
+	case SND_SOC_DAIFMT_CBM_CFS:
 		mi2s_dai_data->rx_dai.mi2s_dai_data.port_config.i2s.ws_src = 1;
 		mi2s_dai_data->tx_dai.mi2s_dai_data.port_config.i2s.ws_src = 1;
 		break;

asoc/msm-pcm-routing-v2.c

@@ -1739,7 +1739,7 @@ int msm_pcm_routing_reg_phy_compr_stream(int fe_id, int perf_mode,
 				adm_open(port_id, path_type, sample_rate,
 					 channels, topology, perf_mode,
 					 bit_width, app_type, acdb_dev_id,
-					 session_type);
+					 session_type, passthr_mode);
 			if ((copp_idx < 0) ||
 				(copp_idx >= MAX_COPPS_PER_PORT)) {
 				pr_err("%s:adm open failed coppid:%d\n",
@@ -2091,7 +2091,7 @@ int msm_pcm_routing_reg_phy_stream(int fedai_id, int perf_mode,
 					    sample_rate, channels, topology,
 					    perf_mode, bits_per_sample,
 					    app_type, acdb_dev_id,
-					    session_type);
+					    session_type, passthr_mode);
 			if ((copp_idx < 0) ||
 				(copp_idx >= MAX_COPPS_PER_PORT)) {
 				pr_err("%s: adm open failed copp_idx:%d\n",
@@ -2372,7 +2372,7 @@ static void msm_pcm_routing_process_audio(u16 reg, u16 val, int set)
 					    sample_rate, channels, topology,
 					    fdai->perf_mode, bits_per_sample,
 					    app_type, acdb_dev_id,
-					    session_type);
+					    session_type, passthr_mode);
 			if ((copp_idx < 0) ||
 			    (copp_idx >= MAX_COPPS_PER_PORT)) {
 				pr_err("%s: adm open failed\n", __func__);
@@ -30147,7 +30147,7 @@ static int msm_pcm_routing_prepare(struct snd_pcm_substream *substream)
 					    sample_rate, channels, topology,
 					    fdai->perf_mode, bits_per_sample,
 					    app_type, acdb_dev_id,
-					    session_type);
+					    session_type, fdai->passthr_mode);
 			if ((copp_idx < 0) ||
 				(copp_idx >= MAX_COPPS_PER_PORT)) {
 				pr_err("%s: adm open failed\n", __func__);

dsp/q6adm.c

@@ -2991,7 +2991,7 @@ exit:
  */
 int adm_open(int port_id, int path, int rate, int channel_mode, int topology,
 	     int perf_mode, uint16_t bit_width, int app_type, int acdb_id,
-	     int session_type)
+	     int session_type, uint32_t passthr_mode)
 {
 	struct adm_cmd_device_open_v5	open;
 	struct adm_cmd_device_open_v6	open_v6;
@@ -3205,7 +3205,9 @@ int adm_open(int port_id, int path, int rate, int channel_mode, int topology,
 			}
 
 			open_v8.topology_id = topology;
-			open_v8.reserved = 0;
+			open_v8.compressed_data_type = 0;
+			if (passthr_mode == COMPRESSED_PASSTHROUGH_DSD)
+				open_v8.compressed_data_type = 1;
 
 			/* variable endpoint payload */
 			ep1_payload.dev_num_channel = channel_mode & 0x00FF;

dsp/q6asm.c

@@ -3097,6 +3097,10 @@ int q6asm_open_read_compressed(struct audio_client *ac, uint32_t format,
 		open.mode_flags = 0x1;
 		open.frames_per_buf = 1;
 		pr_debug("%s: Flag 1 IEC61937 output\n", __func__);
+	} else if (format == FORMAT_DSD) {
+		open.mode_flags = ASM_DSD_FORMAT_FLAG;
+		open.frames_per_buf = 1;
+		pr_debug("%s: Flag 2 DSD output\n", __func__);
 	} else {
 		open.mode_flags = 0;
 		open.frames_per_buf = 1;

include/dsp/apr_audio-v2.h

@@ -598,7 +598,7 @@ struct adm_cmd_device_open_v8 {
  * In all other use cases this should be set to 0xffff
  */
 
-	u16                  reserved;
+	u16 compressed_data_type;
 } __packed;
 
 /*
@@ -2557,6 +2557,7 @@ struct afe_port_data_cmd_rt_proxy_port_read_v2 {
 #define AFE_GENERIC_COMPRESSED           0x8
 #define AFE_LINEAR_PCM_DATA_PACKED_16BIT 0X6
 #define AFE_DSD_DOP_W_MARKER_DATA        0x9
+#define AFE_DSD_DATA                     0xA
 
 /* This param id is used to configure I2S interface */
 #define AFE_PARAM_ID_I2S_CONFIG	0x0001020D
@@ -8957,6 +8958,13 @@ struct asm_data_cmd_remove_silence {
 /* Shift value for the IEC 61937 to 61937 pass-through capture. */
 #define ASM_SHIFT_IEC_61937_PASS_THROUGH_FLAG           0
 
+/* Bitmask for the DSD pass-through capture. */
+#define ASM_BIT_MASK_COMPRESSED_FORMAT_FLAG             (0x00000003UL)
+
+/* Shift value for the DSD pass-through capture. */
+#define ASM_SHIFT_DSD_COMPRESSED_FORMAT_FLAG            0
+
+#define ASM_DSD_FORMAT_FLAG                             2
 struct asm_stream_cmd_open_read_compressed {
 	struct apr_hdr hdr;
 	u32                    mode_flags;
@@ -8968,6 +8976,12 @@ struct asm_stream_cmd_open_read_compressed {
  * - Use #ASM_BIT_MASK_IEC_61937_PASS_THROUGH_FLAG to set the bitmask
  *   and #ASM_SHIFT_IEC_61937_PASS_THROUGH_FLAG to set the shift value
  *   for this bit.
+ * Supported values for bit 1: (DSD native pass-through mode)
+ * 0 -- non DSD operation
+ * 1 -- Pass-through transfer of the DSD format stream
+ * To set this bit, use #ASM_BIT_MASK_DSD_PASS_THROUGH_FLAG and
+ * use #ASM_SHIFT_DSD_PASS_THROUGH_FLAG to set the shift value for
+ * this bit
  * Supported values for bit 4:
  * - 0 -- Return data buffer contains all encoded frames only; it does
  *      not contain frame metadata.
@@ -8984,6 +8998,9 @@ struct asm_stream_cmd_open_read_compressed {
  * Supported values: should be greater than 0 for IEC to RAW compressed
  *                   unpack mode.
  *                   Value is don't care for IEC 61937 pass-through mode.
+ * @values
+ * - >0 -- For IEC 61937-to-RAW Compressed Unpack mode
+ * - 1  -- For IEC 61937 or DSD Pass-through mode
  */
 
 } __packed;

include/dsp/q6adm-v2.h

@@ -119,7 +119,8 @@ int adm_pack_and_set_one_pp_param(int port_id, int copp_idx,
 
 int adm_open(int port, int path, int rate, int mode, int topology,
 			   int perf_mode, uint16_t bits_per_sample,
-			   int app_type, int acdbdev_id, int session_type);
+			   int app_type, int acdbdev_id, int session_type,
+			   uint32_t pass_thr);
 
 int adm_map_rtac_block(struct rtac_cal_block_data *cal_block);