diff --git a/asoc/msm-transcode-loopback-q6-v2.c b/asoc/msm-transcode-loopback-q6-v2.c index 617898f385..14b7ac87a3 100644 --- a/asoc/msm-transcode-loopback-q6-v2.c +++ b/asoc/msm-transcode-loopback-q6-v2.c @@ -39,6 +39,8 @@ #include "msm-qti-pp-config.h" #define LOOPBACK_SESSION_MAX_NUM_STREAMS 2 +/* Max volume corresponding to 24dB */ +#define TRANSCODE_LR_VOL_MAX_DB 0xFFFF #define APP_TYPE_CONFIG_IDX_APP_TYPE 0 #define APP_TYPE_CONFIG_IDX_ACDB_ID 1 @@ -49,6 +51,7 @@ static DEFINE_MUTEX(transcode_loopback_session_lock); struct trans_loopback_pdata { struct snd_compr_stream *cstream[MSM_FRONTEND_DAI_MAX]; + uint32_t master_gain; }; struct loopback_stream { @@ -728,6 +731,80 @@ done: return ret; } +static int msm_transcode_set_volume(struct snd_compr_stream *cstream, + uint32_t master_gain) +{ + int rc = 0; + struct msm_transcode_loopback *prtd; + struct snd_soc_pcm_runtime *rtd; + + pr_debug("%s: master_gain %d\n", __func__, master_gain); + if (!cstream || !cstream->runtime) { + pr_err("%s: session not active\n", __func__); + return -EINVAL; + } + rtd = cstream->private_data; + prtd = cstream->runtime->private_data; + + if (!rtd || !rtd->platform || !prtd || !prtd->audio_client) { + pr_err("%s: invalid rtd, prtd or audio client", __func__); + return -EINVAL; + } + + rc = q6asm_set_volume(prtd->audio_client, master_gain); + if (rc < 0) + pr_err("%s: Send vol gain command failed rc=%d\n", + __func__, rc); + + return rc; +} + +static int msm_transcode_volume_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *comp = snd_kcontrol_chip(kcontrol); + unsigned long fe_id = kcontrol->private_value; + struct trans_loopback_pdata *pdata = (struct trans_loopback_pdata *) + snd_soc_component_get_drvdata(comp); + struct snd_compr_stream *cstream = NULL; + uint32_t ret = 0; + + if (fe_id >= MSM_FRONTEND_DAI_MAX) { + pr_err("%s Received out of bounds fe_id %lu\n", + __func__, fe_id); + return -EINVAL; + } + + cstream = pdata->cstream[fe_id]; + pdata->master_gain = ucontrol->value.integer.value[0]; + + pr_debug("%s: fe_id %lu master_gain %d\n", + __func__, fe_id, pdata->master_gain); + if (cstream) + ret = msm_transcode_set_volume(cstream, pdata->master_gain); + return ret; +} + +static int msm_transcode_volume_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *comp = snd_kcontrol_chip(kcontrol); + unsigned long fe_id = kcontrol->private_value; + + struct trans_loopback_pdata *pdata = (struct trans_loopback_pdata *) + snd_soc_component_get_drvdata(comp); + + if (fe_id >= MSM_FRONTEND_DAI_MAX) { + pr_err("%s Received out of bound fe_id %lu\n", __func__, fe_id); + return -EINVAL; + } + + pr_debug("%s: fe_id %lu\n", __func__, fe_id); + ucontrol->value.integer.value[0] = pdata->master_gain; + + return 0; +} + static int msm_transcode_stream_cmd_control( struct snd_soc_pcm_runtime *rtd) { @@ -980,6 +1057,44 @@ static int msm_transcode_add_app_type_cfg_control( return 0; } +static int msm_transcode_volume_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = TRANSCODE_LR_VOL_MAX_DB; + return 0; +} + +static int msm_transcode_add_volume_control(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_kcontrol_new fe_volume_control[1] = { + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Transcode Loopback Rx Volume", + .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | + SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = msm_transcode_volume_info, + .get = msm_transcode_volume_get, + .put = msm_transcode_volume_put, + .private_value = 0, + } + }; + + if (!rtd) { + pr_err("%s NULL rtd\n", __func__); + return -EINVAL; + } + if (rtd->compr->direction == SND_COMPRESS_PLAYBACK) { + fe_volume_control[0].private_value = rtd->dai_link->id; + pr_debug("Registering new mixer ctl %s", + fe_volume_control[0].name); + snd_soc_add_platform_controls(rtd->platform, fe_volume_control, + ARRAY_SIZE(fe_volume_control)); + } + return 0; +} static int msm_transcode_loopback_new(struct snd_soc_pcm_runtime *rtd) { @@ -1009,6 +1124,11 @@ static int msm_transcode_loopback_new(struct snd_soc_pcm_runtime *rtd) pr_err("%s: Could not add Compr App Type Cfg Control\n", __func__); + rc = msm_transcode_add_volume_control(rtd); + if (rc) + pr_err("%s: Could not add transcode volume Control\n", + __func__); + return 0; }