When constructing packets to DSP, the Audioreach code uses 'struct audioreach_module_config' to configure parameters like number of channels, bitrate, sample rate etc, but uses defaults for the channel mapping.
Rework this code to copy the channel mapping from 'struct audioreach_module_config', instead of using the default. This requires all callers to fill that structure: add missing initialization of channel mapping.
Entire patch makes code more logical and easier to follow: 1. q6apm-dai and q6apm-lpass-dais code which allocates 'struct audioreach_module_config' initializes it fully, so fills both the number of channels and the channel mapping. 2. Audioreach code, which uses 'struct audioreach_module_config' when constructing packets, copies entire contents of passed config, not only pieces of it.
Signed-off-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org
---
Changes in v4: 1. Rename audioreach_set_channel_mapping -> audioreach_set_default_channel_mapping
Changes in v2: 1. Extend commit msg, rationale. 2. Rework to new approach, but most of the code stays. 3. Export audioreach_set_channel_mapping() (needed by Q6APM DAIS and LPASS DAIS) 4. Correct channel mapping also in audioreach_mfc_set_media_format(), because MFC DAI is now part of backend. 5. Do not adjust dynamic DAIs (drop audioreach_dai_load()). --- sound/soc/qcom/qdsp6/audioreach.c | 30 +++++++----------------------- sound/soc/qcom/qdsp6/audioreach.h | 1 + sound/soc/qcom/qdsp6/q6apm-dai.c | 3 +++ sound/soc/qcom/qdsp6/q6apm-lpass-dais.c | 5 ++++- 4 files changed, 15 insertions(+), 24 deletions(-)
diff --git a/sound/soc/qcom/qdsp6/audioreach.c b/sound/soc/qcom/qdsp6/audioreach.c index 5291deac0a0b..4ebaaf736fb9 100644 --- a/sound/soc/qcom/qdsp6/audioreach.c +++ b/sound/soc/qcom/qdsp6/audioreach.c @@ -267,7 +267,7 @@ void *audioreach_alloc_apm_cmd_pkt(int pkt_size, uint32_t opcode, uint32_t token } EXPORT_SYMBOL_GPL(audioreach_alloc_apm_cmd_pkt);
-static void audioreach_set_channel_mapping(u8 *ch_map, int num_channels) +void audioreach_set_default_channel_mapping(u8 *ch_map, int num_channels) { if (num_channels == 1) { ch_map[0] = PCM_CHANNEL_FL; @@ -281,6 +281,7 @@ static void audioreach_set_channel_mapping(u8 *ch_map, int num_channels) ch_map[3] = PCM_CHANNEL_RS; } } +EXPORT_SYMBOL_GPL(audioreach_set_default_channel_mapping);
static void apm_populate_container_config(struct apm_container_obj *cfg, struct audioreach_container *cont) @@ -819,7 +820,7 @@ static int audioreach_mfc_set_media_format(struct q6apm_graph *graph, uint32_t num_channels = cfg->num_channels; int payload_size; struct gpr_pkt *pkt; - int rc; + int rc, i; void *p;
payload_size = APM_MFC_CFG_PSIZE(media_format, num_channels) + @@ -842,18 +843,8 @@ static int audioreach_mfc_set_media_format(struct q6apm_graph *graph, media_format->sample_rate = cfg->sample_rate; media_format->bit_width = cfg->bit_width; media_format->num_channels = cfg->num_channels; - - if (num_channels == 1) { - media_format->channel_mapping[0] = PCM_CHANNEL_FL; - } else if (num_channels == 2) { - media_format->channel_mapping[0] = PCM_CHANNEL_FL; - media_format->channel_mapping[1] = PCM_CHANNEL_FR; - } else if (num_channels == 4) { - media_format->channel_mapping[0] = PCM_CHANNEL_FL; - media_format->channel_mapping[1] = PCM_CHANNEL_FR; - media_format->channel_mapping[2] = PCM_CHANNEL_LS; - media_format->channel_mapping[3] = PCM_CHANNEL_RS; - } + for (i = 0; i < num_channels; i++) + media_format->channel_mapping[i] = cfg->channel_map[i];
rc = q6apm_send_cmd_sync(graph->apm, pkt, 0);
@@ -883,9 +874,6 @@ static int audioreach_set_compr_media_format(struct media_format *media_fmt_hdr, mp3_cfg->q_factor = mcfg->bit_width - 1; mp3_cfg->endianness = PCM_LITTLE_ENDIAN; mp3_cfg->num_channels = mcfg->num_channels; - - audioreach_set_channel_mapping(mp3_cfg->channel_mapping, - mcfg->num_channels); break; case SND_AUDIOCODEC_AAC: media_fmt_hdr->data_format = DATA_FORMAT_RAW_COMPRESSED; @@ -1104,9 +1092,7 @@ static int audioreach_pcm_set_media_format(struct q6apm_graph *graph, media_cfg->num_channels = mcfg->num_channels; media_cfg->q_factor = mcfg->bit_width - 1; media_cfg->bits_per_sample = mcfg->bit_width; - - audioreach_set_channel_mapping(media_cfg->channel_mapping, - num_channels); + memcpy(media_cfg->channel_mapping, mcfg->channel_map, mcfg->num_channels);
rc = q6apm_send_cmd_sync(graph->apm, pkt, 0);
@@ -1163,9 +1149,7 @@ static int audioreach_shmem_set_media_format(struct q6apm_graph *graph, cfg->q_factor = mcfg->bit_width - 1; cfg->endianness = PCM_LITTLE_ENDIAN; cfg->num_channels = mcfg->num_channels; - - audioreach_set_channel_mapping(cfg->channel_mapping, - num_channels); + memcpy(cfg->channel_mapping, mcfg->channel_map, mcfg->num_channels); } else { rc = audioreach_set_compr_media_format(header, p, mcfg); if (rc) { diff --git a/sound/soc/qcom/qdsp6/audioreach.h b/sound/soc/qcom/qdsp6/audioreach.h index eb9306280988..61a69df4f50f 100644 --- a/sound/soc/qcom/qdsp6/audioreach.h +++ b/sound/soc/qcom/qdsp6/audioreach.h @@ -766,6 +766,7 @@ struct audioreach_module_config { /* Packet Allocation routines */ void *audioreach_alloc_apm_cmd_pkt(int pkt_size, uint32_t opcode, uint32_t token); +void audioreach_set_default_channel_mapping(u8 *ch_map, int num_channels); void *audioreach_alloc_cmd_pkt(int payload_size, uint32_t opcode, uint32_t token, uint32_t src_port, uint32_t dest_port); diff --git a/sound/soc/qcom/qdsp6/q6apm-dai.c b/sound/soc/qcom/qdsp6/q6apm-dai.c index 00bbd291be5c..3361c10d69a4 100644 --- a/sound/soc/qcom/qdsp6/q6apm-dai.c +++ b/sound/soc/qcom/qdsp6/q6apm-dai.c @@ -243,6 +243,7 @@ static int q6apm_dai_prepare(struct snd_soc_component *component, cfg.num_channels = runtime->channels; cfg.bit_width = prtd->bits_per_sample; cfg.fmt = SND_AUDIOCODEC_PCM; + audioreach_set_default_channel_mapping(cfg.channel_map, runtime->channels);
if (prtd->state) { /* clear the previous setup if any */ @@ -669,6 +670,8 @@ static int q6apm_dai_compr_set_params(struct snd_soc_component *component, cfg.num_channels = 2; cfg.bit_width = prtd->bits_per_sample; cfg.fmt = codec->id; + audioreach_set_default_channel_mapping(cfg.channel_map, + cfg.num_channels); memcpy(&cfg.codec, codec, sizeof(*codec));
ret = q6apm_graph_media_format_shmem(prtd->graph, &cfg); diff --git a/sound/soc/qcom/qdsp6/q6apm-lpass-dais.c b/sound/soc/qcom/qdsp6/q6apm-lpass-dais.c index a4ad1d0e6abd..ba28ec9dff86 100644 --- a/sound/soc/qcom/qdsp6/q6apm-lpass-dais.c +++ b/sound/soc/qcom/qdsp6/q6apm-lpass-dais.c @@ -106,6 +106,7 @@ static int q6hdmi_hw_params(struct snd_pcm_substream *substream, cfg->bit_width = params_width(params); cfg->sample_rate = params_rate(params); cfg->num_channels = channels; + audioreach_set_default_channel_mapping(cfg->channel_map, channels);
switch (dai->id) { case DISPLAY_PORT_RX_0: @@ -130,10 +131,12 @@ static int q6dma_hw_params(struct snd_pcm_substream *substream, { struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev); struct audioreach_module_config *cfg = &dai_data->module_config[dai->id]; + int channels = hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max;
cfg->bit_width = params_width(params); cfg->sample_rate = params_rate(params); - cfg->num_channels = hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max; + cfg->num_channels = channels; + audioreach_set_default_channel_mapping(cfg->channel_map, channels);
return 0; }