diff options
Diffstat (limited to 'sound/soc/sof/topology.c')
| -rw-r--r-- | sound/soc/sof/topology.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/sound/soc/sof/topology.c b/sound/soc/sof/topology.c index 8e00f829bfdb..aaf459af89d0 100644 --- a/sound/soc/sof/topology.c +++ b/sound/soc/sof/topology.c @@ -3016,6 +3016,49 @@ err: return ret; } +/* Function to set the initial value of SOF kcontrols. + * The value will be stored in scontrol->control_data + */ +static int snd_sof_cache_kcontrol_val(struct snd_sof_dev *sdev) +{ + struct snd_sof_control *scontrol = NULL; + int ipc_cmd, ctrl_type; + int ret = 0; + + list_for_each_entry(scontrol, &sdev->kcontrol_list, list) { + + /* notify DSP of kcontrol values */ + switch (scontrol->cmd) { + case SOF_CTRL_CMD_VOLUME: + case SOF_CTRL_CMD_ENUM: + case SOF_CTRL_CMD_SWITCH: + ipc_cmd = SOF_IPC_COMP_GET_VALUE; + ctrl_type = SOF_CTRL_TYPE_VALUE_CHAN_GET; + break; + case SOF_CTRL_CMD_BINARY: + ipc_cmd = SOF_IPC_COMP_GET_DATA; + ctrl_type = SOF_CTRL_TYPE_DATA_GET; + break; + default: + dev_err(sdev->dev, + "error: Invalid scontrol->cmd: %d\n", + scontrol->cmd); + return -EINVAL; + } + ret = snd_sof_ipc_set_get_comp_data(sdev->ipc, scontrol, + ipc_cmd, ctrl_type, + scontrol->cmd, + false); + if (ret < 0) { + dev_warn(sdev->dev, + "error: kcontrol value get for widget: %d\n", + scontrol->comp_id); + } + } + + return ret; +} + int snd_sof_complete_pipeline(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget) { @@ -3059,6 +3102,11 @@ static void sof_complete(struct snd_soc_component *scomp) break; } } + /* + * cache initial values of SOF kcontrols by reading DSP value over + * IPC. It may be overwritten by alsa-mixer after booting up + */ + snd_sof_cache_kcontrol_val(sdev); } /* manifest - optional to inform component of manifest */ |