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Commit 6f71b80b authored by Manish Dewangan's avatar Manish Dewangan Committed by Banajit Goswami
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ASoc: msm: qdspv2: Clock recovery support in compress driver 



Support for clock recovery in compress driver.

Userspace app can issue clock recovery command with a positive value
to advance the clock or a negative value to delay the clock.

CRs-Fixed: 2036899
Change-Id: Iacfc18afe6723edea84ed3382ac62810fcadb31a
Signed-off-by: default avatarManish Dewangan <manish@codeaurora.org>
parent 545a706d

include/uapi/sound/compress_offload.h

+7 −0
Original line number Diff line number Diff line
@@ -149,6 +149,8 @@ struct snd_compr_audio_info { 
 * @SNDRV_COMPRESS_CLK_REC_MODE: clock recovery mode ( none or auto)

 * @SNDRV_COMPRESS_RENDER_WINDOW: render window

 * @SNDRV_COMPRESS_START_DELAY: start delay

 * @SNDRV_COMPRESS_ENABLE_ADJUST_SESSION_CLOCK: enable dsp drift correction

 * @SNDRV_COMPRESS_ADJUST_SESSION_CLOCK: set drift correction value

 */

enum sndrv_compress_encoder {

	SNDRV_COMPRESS_ENCODER_PADDING = 1,
@@ -160,6 +162,8 @@ enum sndrv_compress_encoder { 
	SNDRV_COMPRESS_CLK_REC_MODE = 7,

	SNDRV_COMPRESS_RENDER_WINDOW = 8,

	SNDRV_COMPRESS_START_DELAY = 9,

	SNDRV_COMPRESS_ENABLE_ADJUST_SESSION_CLOCK = 10,

	SNDRV_COMPRESS_ADJUST_SESSION_CLOCK = 11,

};



#define SNDRV_COMPRESS_PATH_DELAY SNDRV_COMPRESS_PATH_DELAY
@@ -167,6 +171,9 @@ enum sndrv_compress_encoder { 
#define SNDRV_COMPRESS_CLK_REC_MODE SNDRV_COMPRESS_CLK_REC_MODE

#define SNDRV_COMPRESS_RENDER_WINDOW SNDRV_COMPRESS_RENDER_WINDOW

#define SNDRV_COMPRESS_START_DELAY SNDRV_COMPRESS_START_DELAY

#define SNDRV_COMPRESS_ENABLE_ADJUST_SESSION_CLOCK \

			SNDRV_COMPRESS_ENABLE_ADJUST_SESSION_CLOCK

#define SNDRV_COMPRESS_ADJUST_SESSION_CLOCK SNDRV_COMPRESS_ADJUST_SESSION_CLOCK



/**

 * struct snd_compr_metadata - compressed stream metadata

sound/soc/msm/qdsp6v2/msm-compress-q6-v2.c

+41 −0
Original line number Diff line number Diff line
@@ -302,6 +302,39 @@ static int msm_compr_set_render_window(struct audio_client *ac, 
	return ret;

}



static int msm_compr_enable_adjust_session_clock(struct audio_client *ac,

		bool enable)

{

	int ret;



	pr_debug("%s, enable adjust_session %d\n", __func__, enable);



	ret = q6asm_send_mtmx_strtr_enable_adjust_session_clock(ac, enable);

	if (ret)

		pr_err("%s, adjust session clock can't be set error %d\n",

			__func__, ret);



	return ret;

}



static int msm_compr_adjust_session_clock(struct audio_client *ac,

		uint32_t adjust_session_lsw, uint32_t adjust_session_msw)

{

	int ret;



	pr_debug("%s, adjust_session_time_msw 0x%x adjust_session_time_lsw 0x%x\n",

		 __func__, adjust_session_msw, adjust_session_lsw);



	ret = q6asm_adjust_session_clock(ac,

			adjust_session_lsw,

			adjust_session_msw);

	if (ret)

		pr_err("%s, adjust session clock can't be set error %d\n",

			__func__, ret);



	return ret;

}



static int msm_compr_set_volume(struct snd_compr_stream *cstream,

				uint32_t volume_l, uint32_t volume_r)

{
@@ -2885,6 +2918,14 @@ static int msm_compr_set_metadata(struct snd_compr_stream *cstream, 
	} else if (metadata->key == SNDRV_COMPRESS_START_DELAY) {

		prtd->start_delay_lsw = metadata->value[0];

		prtd->start_delay_msw = metadata->value[1];

	} else if (metadata->key ==

				SNDRV_COMPRESS_ENABLE_ADJUST_SESSION_CLOCK) {

		return msm_compr_enable_adjust_session_clock(ac,

				metadata->value[0]);

	} else if (metadata->key == SNDRV_COMPRESS_ADJUST_SESSION_CLOCK) {

		return msm_compr_adjust_session_clock(ac,

				metadata->value[0],

				metadata->value[1]);

	}



	return 0;