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Subject[RFC PATCH 2/3] ASoC: qcom: q6asm: add support to flac config
Date
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

Qualcomm DSPs expect flac config to be set for flac decoders, so add the
API to program the flac config to the DSP

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
---
sound/soc/qcom/qdsp6/q6asm.c | 55 ++++++++++++++++++++++++++++++++++++
sound/soc/qcom/qdsp6/q6asm.h | 15 ++++++++++
2 files changed, 70 insertions(+)

diff --git a/sound/soc/qcom/qdsp6/q6asm.c b/sound/soc/qcom/qdsp6/q6asm.c
index e8141a33a55e..36e0eab13a98 100644
--- a/sound/soc/qcom/qdsp6/q6asm.c
+++ b/sound/soc/qcom/qdsp6/q6asm.c
@@ -38,6 +38,7 @@
#define ASM_SESSION_CMD_RUN_V2 0x00010DAA
#define ASM_MEDIA_FMT_MULTI_CHANNEL_PCM_V2 0x00010DA5
#define ASM_MEDIA_FMT_MP3 0x00010BE9
+#define ASM_MEDIA_FMT_FLAC 0x00010C16
#define ASM_DATA_CMD_WRITE_V2 0x00010DAB
#define ASM_DATA_CMD_READ_V2 0x00010DAC
#define ASM_SESSION_CMD_SUSPEND 0x00010DEC
@@ -89,6 +90,20 @@ struct asm_multi_channel_pcm_fmt_blk_v2 {
u8 channel_mapping[PCM_MAX_NUM_CHANNEL];
} __packed;

+struct asm_flac_fmt_blk_v2 {
+ struct asm_data_cmd_media_fmt_update_v2 fmt_blk;
+ u16 is_stream_info_present;
+ u16 num_channels;
+ u16 min_blk_size;
+ u16 max_blk_size;
+ u16 md5_sum[8];
+ u32 sample_rate;
+ u32 min_frame_size;
+ u32 max_frame_size;
+ u16 sample_size;
+ u16 reserved;
+} __packed;
+
struct asm_stream_cmd_set_encdec_param {
u32 param_id;
u32 param_size;
@@ -876,6 +891,9 @@ int q6asm_open_write(struct audio_client *ac, uint32_t format,
case FORMAT_LINEAR_PCM:
open->dec_fmt_id = ASM_MEDIA_FMT_MULTI_CHANNEL_PCM_V2;
break;
+ case SND_AUDIOCODEC_FLAC:
+ open->dec_fmt_id = ASM_MEDIA_FMT_FLAC;
+ break;
default:
dev_err(ac->dev, "Invalid format 0x%x\n", format);
rc = -EINVAL;
@@ -1021,6 +1039,42 @@ int q6asm_media_format_block_multi_ch_pcm(struct audio_client *ac,
}
EXPORT_SYMBOL_GPL(q6asm_media_format_block_multi_ch_pcm);

+
+int q6asm_stream_media_format_block_flac(struct audio_client *ac,
+ struct q6asm_flac_cfg *cfg)
+{
+ struct asm_flac_fmt_blk_v2 *fmt;
+ struct apr_pkt *pkt;
+ void *p;
+ int rc, pkt_size;
+
+ pkt_size = APR_HDR_SIZE + sizeof(*fmt);
+ p = kzalloc(pkt_size, GFP_KERNEL);
+ if (!p)
+ return -ENOMEM;
+
+ pkt = p;
+ fmt = p + APR_HDR_SIZE;
+
+ q6asm_add_hdr(ac, &pkt->hdr, pkt_size, true, ac->stream_id);
+
+ pkt->hdr.opcode = ASM_DATA_CMD_MEDIA_FMT_UPDATE_V2;
+ fmt->fmt_blk.fmt_blk_size = sizeof(*fmt) - sizeof(fmt->fmt_blk);
+ fmt->is_stream_info_present = cfg->stream_info_present;
+ fmt->num_channels = cfg->ch_cfg;
+ fmt->min_blk_size = cfg->min_blk_size;
+ fmt->max_blk_size = cfg->max_blk_size;
+ fmt->sample_rate = cfg->sample_rate;
+ fmt->min_frame_size = cfg->min_frame_size;
+ fmt->max_frame_size = cfg->max_frame_size;
+ fmt->sample_size = cfg->sample_size;
+
+ rc = q6asm_ac_send_cmd_sync(ac, pkt);
+ kfree(pkt);
+
+ return rc;
+}
+EXPORT_SYMBOL_GPL(q6asm_stream_media_format_block_flac);
/**
* q6asm_enc_cfg_blk_pcm_format_support() - setup pcm configuration for capture
*
@@ -1075,6 +1129,7 @@ int q6asm_enc_cfg_blk_pcm_format_support(struct audio_client *ac,
}
EXPORT_SYMBOL_GPL(q6asm_enc_cfg_blk_pcm_format_support);

+
/**
* q6asm_read() - read data of period size from audio client
*
diff --git a/sound/soc/qcom/qdsp6/q6asm.h b/sound/soc/qcom/qdsp6/q6asm.h
index 9f5fb573e4a0..6764f55f7078 100644
--- a/sound/soc/qcom/qdsp6/q6asm.h
+++ b/sound/soc/qcom/qdsp6/q6asm.h
@@ -32,6 +32,19 @@ enum {
#define NO_TIMESTAMP 0xFF00
#define FORMAT_LINEAR_PCM 0x0000

+struct q6asm_flac_cfg {
+ u32 sample_rate;
+ u32 ext_sample_rate;
+ u32 min_frame_size;
+ u32 max_frame_size;
+ u16 stream_info_present;
+ u16 min_blk_size;
+ u16 max_blk_size;
+ u16 ch_cfg;
+ u16 sample_size;
+ u16 md5_sum;
+};
+
typedef void (*q6asm_cb) (uint32_t opcode, uint32_t token,
void *payload, void *priv);
struct audio_client;
@@ -54,6 +67,8 @@ int q6asm_media_format_block_multi_ch_pcm(struct audio_client *ac,
uint32_t rate, uint32_t channels,
u8 channel_map[PCM_MAX_NUM_CHANNEL],
uint16_t bits_per_sample);
+int q6asm_stream_media_format_block_flac(struct audio_client *ac,
+ struct q6asm_flac_cfg *cfg);
int q6asm_run(struct audio_client *ac, uint32_t flags, uint32_t msw_ts,
uint32_t lsw_ts);
int q6asm_run_nowait(struct audio_client *ac, uint32_t flags, uint32_t msw_ts,
--
2.23.0
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