ASoC: msm: qdsp6v2: pull mode playback and push mode record

Implement platform drivers to support shared memory based
pcm playback and capture.

Change-Id: I882c67ae1c3d950b98bd002ac384cc3a7e77874a
CRs-Fixed: 992798
Signed-off-by: Haynes Mathew George <hgeorge@codeaurora.org>

2 files changed, 131 insertions, 0 deletions

diff --git a/include/sound/apr_audio-v2.h b/include/sound/apr_audio-v2.h
index 24b283311817..809d5223b638 100644
--- a/include/sound/apr_audio-v2.h
+++ b/include/sound/apr_audio-v2.h
@@ -3328,6 +3328,8 @@ struct asm_softvolume_params {
 
 #define ASM_MEDIA_FMT_MULTI_CHANNEL_PCM_V2 0x00010DA5
 
+#define ASM_MEDIA_FMT_MULTI_CHANNEL_PCM_V3 0x00010DDC
+
 #define ASM_MEDIA_FMT_EVRCB_FS 0x00010BEF
 
 #define ASM_MEDIA_FMT_EVRCWB_FS 0x00010BF0
@@ -3395,6 +3397,41 @@ struct asm_multi_channel_pcm_fmt_blk_v2 {
  */
 } __packed;
 
+struct asm_multi_channel_pcm_fmt_blk_v3 {
+	uint16_t                num_channels;
+/*
+ * Number of channels
+ * Supported values: 1 to 8
+ */
+
+	uint16_t                bits_per_sample;
+/*
+ * Number of bits per sample per channel
+ * Supported values: 16, 24
+ */
+
+	uint32_t                sample_rate;
+/*
+ * Number of samples per second
+ * Supported values: 2000 to 48000, 96000,192000 Hz
+ */
+
+	uint16_t                is_signed;
+/* Flag that indicates that PCM samples are signed (1) */
+
+	uint16_t                sample_word_size;
+/*
+ * Size in bits of the word that holds a sample of a channel.
+ * Supported values: 12,24,32
+ */
+
+	uint8_t                 channel_mapping[8];
+/*
+ * Each element, i, in the array describes channel i inside the buffer where
+ * 0 <= i < num_channels. Unused channels are set to 0.
+ */
+} __packed;
+
 struct asm_stream_cmd_set_encdec_param {
 	u32                  param_id;
 	/* ID of the parameter. */
@@ -4865,6 +4902,77 @@ struct asm_stream_cmd_open_write_v3 {
  */
 } __packed;
 
+#define ASM_STREAM_CMD_OPEN_PULL_MODE_WRITE    0x00010DD9
+
+/* Bitmask for the stream_perf_mode subfield. */
+#define ASM_BIT_MASK_STREAM_PERF_FLAG_PULL_MODE_WRITE 0xE0000000UL
+
+/* Bitmask for the stream_perf_mode subfield. */
+#define ASM_SHIFT_STREAM_PERF_FLAG_PULL_MODE_WRITE 29
+
+#define ASM_STREAM_CMD_OPEN_PUSH_MODE_READ  0x00010DDA
+
+#define ASM_BIT_MASK_STREAM_PERF_FLAG_PUSH_MODE_READ 0xE0000000UL
+
+#define ASM_SHIFT_STREAM_PERF_FLAG_PUSH_MODE_READ 29
+
+#define ASM_DATA_EVENT_WATERMARK 0x00010DDB
+
+struct asm_shared_position_buffer {
+	volatile uint32_t               frame_counter;
+/* Counter used to handle interprocessor synchronization issues.
+ * When frame_counter is 0: read_index, wall_clock_us_lsw, and
+ * wall_clock_us_msw are invalid.
+ * Supported values: >= 0.
+ */
+
+	volatile uint32_t               index;
+/* Index in bytes from where the aDSP is reading/writing.
+ * Supported values: 0 to circular buffer size - 1
+ */
+
+	volatile uint32_t               wall_clock_us_lsw;
+/* Lower 32 bits of the 64-bit wall clock time in microseconds when the
+ * read index was updated.
+ * Supported values: >= 0
+ */
+
+	volatile uint32_t               wall_clock_us_msw;
+/* Upper 32 bits of the 64 bit wall clock time in microseconds when the
+ * read index was updated
+ * Supported values: >= 0
+ */
+} __packed;
+
+struct asm_shared_watermark_level {
+	uint32_t                watermark_level_bytes;
+} __packed;
+
+struct asm_stream_cmd_open_shared_io {
+	struct apr_hdr          hdr;
+	uint32_t                mode_flags;
+	uint16_t                endpoint_type;
+	uint16_t                topo_bits_per_sample;
+	uint32_t                topo_id;
+	uint32_t                fmt_id;
+	uint32_t                shared_pos_buf_phy_addr_lsw;
+	uint32_t                shared_pos_buf_phy_addr_msw;
+	uint16_t                shared_pos_buf_mem_pool_id;
+	uint16_t                shared_pos_buf_num_regions;
+	uint32_t                shared_pos_buf_property_flag;
+	uint32_t                shared_circ_buf_start_phy_addr_lsw;
+	uint32_t                shared_circ_buf_start_phy_addr_msw;
+	uint32_t                shared_circ_buf_size;
+	uint16_t                shared_circ_buf_mem_pool_id;
+	uint16_t                shared_circ_buf_num_regions;
+	uint32_t                shared_circ_buf_property_flag;
+	uint32_t                num_watermark_levels;
+	struct asm_multi_channel_pcm_fmt_blk_v3         fmt;
+	struct avs_shared_map_region_payload            map_region_pos_buf;
+	struct avs_shared_map_region_payload            map_region_circ_buf;
+	struct asm_shared_watermark_level watermark[0];
+} __packed;
+
 #define ASM_STREAM_CMD_OPEN_READ_V3                 0x00010DB4
 
 /* Definition of the timestamp type flag bitmask */
diff --git a/include/sound/q6asm-v2.h b/include/sound/q6asm-v2.h
index 42695f225e2e..2f3e33fd28df 100644
--- a/include/sound/q6asm-v2.h
+++ b/include/sound/q6asm-v2.h
@@ -170,6 +170,16 @@ struct audio_port_data {
 	spinlock_t	    dsp_lock;
 };
 
+struct shared_io_config {
+	uint32_t format;
+	uint16_t bits_per_sample;
+	uint32_t rate;
+	uint32_t channels;
+	uint16_t sample_word_size;
+	uint32_t bufsz;
+	uint32_t bufcnt;
+};
+
 struct audio_client {
 	int                    session;
 	app_cb		       cb;
@@ -201,6 +211,9 @@ struct audio_client {
 	atomic_t               reset;
 	/* holds latest DSP pipeline delay */
 	uint32_t               path_delay;
+	/* shared io */
+	struct audio_buffer shared_pos_buf;
+	struct shared_io_config config;
 };
 
 void q6asm_audio_client_free(struct audio_client *ac);
@@ -234,6 +247,9 @@ int q6asm_open_write(struct audio_client *ac, uint32_t format
 int q6asm_open_write_v2(struct audio_client *ac, uint32_t format,
 			uint16_t bits_per_sample);
 
+int q6asm_open_shared_io(struct audio_client *ac,
+			 struct shared_io_config *c, int dir);
+
 int q6asm_stream_open_write_v2(struct audio_client *ac, uint32_t format,
 				uint16_t bits_per_sample, int32_t stream_id,
 				bool is_gapless_mode);
@@ -274,6 +290,13 @@ int q6asm_memory_map(struct audio_client *ac, phys_addr_t buf_add,
 int q6asm_memory_unmap(struct audio_client *ac, phys_addr_t buf_add,
 							int dir);
 
+struct audio_buffer *q6asm_shared_io_buf(struct audio_client *ac, int dir);
+
+int q6asm_shared_io_free(struct audio_client *ac, int dir);
+
+int q6asm_get_shared_pos(struct audio_client *ac, uint32_t *si, uint32_t *msw,
+			 uint32_t *lsw);
+
 int q6asm_map_rtac_block(struct rtac_cal_block_data *cal_block);
 
 int q6asm_unmap_rtac_block(uint32_t *mem_map_handle);