evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

ASoC: msm: volume control support for DSP transcode loopback

Browse source 
Add stream volume control support for DSP transcode
loopback to support mute configuration requirement.

CRs-Fixed: 2092562
Change-Id: I2003e40c9888245c1b12f0e7fbd364170d5008cf
Signed-off-by: Siddartha Shaik <sshaik@codeaurora.org>
This commit is contained in:
Siddartha Shaik 2017-08-14 00:57:46 +05:30
parent 4ef6a54e2c
commit dd32d9226c
1 changed files with 121 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

121
sound/soc/msm/qdsp6v2/msm-transcode-loopback-q6-v2.c
View file

@ -41,6 +41,8 @@
#include "msm-qti-pp-config.h"
#define LOOPBACK_SESSION_MAX_NUM_STREAMS 2
/* Max volume corresponding to 24dB */
#define TRANSCODE_LR_VOL_MAX_STEPS 0xFFFF
#define APP_TYPE_CONFIG_IDX_APP_TYPE 0
#define APP_TYPE_CONFIG_IDX_ACDB_ID 1
@ -52,6 +54,7 @@ static DEFINE_MUTEX(transcode_loopback_session_lock);
struct trans_loopback_pdata {
struct snd_compr_stream *cstream[MSM_FRONTEND_DAI_MAX];
int32_t ion_fd[MSM_FRONTEND_DAI_MAX];
uint32_t master_gain;
};
struct loopback_stream {
@ -813,6 +816,80 @@ 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 -EPERM;
}
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)
{
@ -1089,6 +1166,7 @@ static int msm_transcode_add_app_type_cfg_control(
if (!rtd) {
pr_err("%s NULL rtd\n", __func__);
return -EINVAL;
}
@ -1114,6 +1192,44 @@ static int msm_transcode_add_app_type_cfg_control(
return rc;
}
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_STEPS;
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->be_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)
{
@ -1148,6 +1264,11 @@ 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;
}