This patch adds support to ASM_DATA_CMD_REMOVE_INITIAL_SILENCE and ASM_DATA_CMD_REMOVE_TRAILING_SILENCE q6asm command to support compressed metadata for gapless playback.
Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org --- sound/soc/qcom/qdsp6/q6asm.c | 53 ++++++++++++++++++++++++++++++++++++ sound/soc/qcom/qdsp6/q6asm.h | 6 ++++ 2 files changed, 59 insertions(+)
diff --git a/sound/soc/qcom/qdsp6/q6asm.c b/sound/soc/qcom/qdsp6/q6asm.c index 205453d1c1fc..14ec7dad5b65 100644 --- a/sound/soc/qcom/qdsp6/q6asm.c +++ b/sound/soc/qcom/qdsp6/q6asm.c @@ -51,6 +51,8 @@ #define ASM_STREAM_CMD_OPEN_READWRITE_V2 0x00010D8D #define ASM_MEDIA_FMT_ALAC 0x00012f31 #define ASM_MEDIA_FMT_APE 0x00012f32 +#define ASM_DATA_CMD_REMOVE_INITIAL_SILENCE 0x00010D67 +#define ASM_DATA_CMD_REMOVE_TRAILING_SILENCE 0x00010D68
#define ASM_LEGACY_STREAM_SESSION 0 @@ -639,6 +641,8 @@ static int32_t q6asm_stream_callback(struct apr_device *adev, case ASM_STREAM_CMD_OPEN_READWRITE_V2: case ASM_STREAM_CMD_SET_ENCDEC_PARAM: case ASM_DATA_CMD_MEDIA_FMT_UPDATE_V2: + case ASM_DATA_CMD_REMOVE_INITIAL_SILENCE: + case ASM_DATA_CMD_REMOVE_TRAILING_SILENCE: if (result->status != 0) { dev_err(ac->dev, "cmd = 0x%x returned error = 0x%x\n", @@ -1324,6 +1328,55 @@ int q6asm_stream_media_format_block_ape(struct audio_client *ac, } EXPORT_SYMBOL_GPL(q6asm_stream_media_format_block_ape);
+static int q6asm_stream_remove_silence(struct audio_client *ac, uint32_t stream_id, + uint32_t cmd, + uint32_t num_samples) +{ + uint32_t *samples; + struct apr_pkt *pkt; + void *p; + int rc, pkt_size; + + pkt_size = APR_HDR_SIZE + sizeof(uint32_t); + p = kzalloc(pkt_size, GFP_ATOMIC); + if (!p) + return -ENOMEM; + + pkt = p; + samples = p + APR_HDR_SIZE; + + q6asm_add_hdr(ac, &pkt->hdr, pkt_size, true, stream_id); + + pkt->hdr.opcode = cmd; + *samples = num_samples; + rc = apr_send_pkt(ac->adev, pkt); + if (rc == pkt_size) + rc = 0; + + kfree(pkt); + + return rc; +} + +int q6asm_stream_remove_initial_silence(struct audio_client *ac, + uint32_t stream_id, + uint32_t initial_samples) +{ + return q6asm_stream_remove_silence(ac, stream_id, + ASM_DATA_CMD_REMOVE_INITIAL_SILENCE, + initial_samples); +} +EXPORT_SYMBOL_GPL(q6asm_stream_remove_initial_silence); + +int q6asm_stream_remove_trailing_silence(struct audio_client *ac, uint32_t stream_id, + uint32_t trailing_samples) +{ + return q6asm_stream_remove_silence(ac, stream_id, + ASM_DATA_CMD_REMOVE_TRAILING_SILENCE, + trailing_samples); +} +EXPORT_SYMBOL_GPL(q6asm_stream_remove_trailing_silence); + /** * q6asm_enc_cfg_blk_pcm_format_support() - setup pcm configuration for capture * diff --git a/sound/soc/qcom/qdsp6/q6asm.h b/sound/soc/qcom/qdsp6/q6asm.h index 0379580f0742..e315f7ff5e54 100644 --- a/sound/soc/qcom/qdsp6/q6asm.h +++ b/sound/soc/qcom/qdsp6/q6asm.h @@ -135,6 +135,12 @@ int q6asm_run(struct audio_client *ac, uint32_t stream_id, uint32_t flags, uint32_t msw_ts, uint32_t lsw_ts); int q6asm_run_nowait(struct audio_client *ac, uint32_t stream_id, uint32_t flags, uint32_t msw_ts, uint32_t lsw_ts); +int q6asm_stream_remove_initial_silence(struct audio_client *ac, + uint32_t stream_id, + uint32_t initial_samples); +int q6asm_stream_remove_trailing_silence(struct audio_client *ac, + uint32_t stream_id, + uint32_t trailing_samples); int q6asm_cmd(struct audio_client *ac, uint32_t stream_id, int cmd); int q6asm_cmd_nowait(struct audio_client *ac, uint32_t stream_id, int cmd); int q6asm_get_session_id(struct audio_client *ac);