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Loopback mode kcontrol support #26

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xiulipan wants to merge 5 commits into from
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Loopback mode kcontrol support #26

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e662282
dai: add lbm status for dai ssp
xiulipan Jun 13, 2018
71d3257
dai: add get_loopback_mode function
xiulipan Jun 19, 2018
f97f254
DMIC: add empty get_loopback_mode function
xiulipan Jun 19, 2018
5867e43
SSP: support for get/set_loopback_mode functions
xiulipan Jun 19, 2018
850d213
dai: add dai_cmd support for loopback mode switch
xiulipan Jun 19, 2018
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76 changes: 76 additions & 0 deletions src/audio/dai.c
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Original file line number Diff line number Diff line change
Expand Up @@ -688,6 +688,81 @@ static int dai_config(struct comp_dev *dev, struct sof_ipc_dai_config *config)
return 0;
}

static int dai_ctrl_set_cmd(struct comp_dev *dev,
struct sof_ipc_ctrl_data *cdata)
{
struct dai_data *dd = comp_get_drvdata(dev);
int ret = 0;
int val;

/* validate */
if (cdata->num_elems != 1) {
trace_dai_error("xs0");
return -EINVAL;
}

switch (cdata->cmd) {
case SOF_CTRL_CMD_SWITCH:
val = cdata->compv[0].uvalue;
trace_dai("dcs");
trace_value(cdata->comp_id);
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@lgirdwood lgirdwood Jun 28, 2018

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This will flow easier when using ioctl as the cmd can be passed directly in most cases.

trace_value(val);
dai_set_loopback_mode(dd->dai, val);
break;

default:
trace_dai_error("gs1");
return -EINVAL;
}

return ret;
}

static int dai_ctrl_get_cmd(struct comp_dev *dev,
struct sof_ipc_ctrl_data *cdata)
{
struct dai_data *dd = comp_get_drvdata(dev);
int val;

/* validate */
if (cdata->num_elems != 1) {
trace_dai_error("xg0");
return -EINVAL;
}
switch (cdata->cmd) {
case SOF_CTRL_CMD_SWITCH:
val = dai_get_loopback_mode(dd->dai);
trace_dai("dcg");
trace_value(cdata->comp_id);
trace_value(val);
cdata->compv[0].uvalue = val;
break;

default:
trace_dai_error("xcc");
return -EINVAL;
}

return 0;
}

/* used to pass standard and bespoke commands (with data) to component */
static int dai_cmd(struct comp_dev *dev, int cmd, void *data)
{
struct sof_ipc_ctrl_data *cdata = data;

trace_dai("cmd");

switch (cmd) {
case COMP_CMD_SET_VALUE:
return dai_ctrl_set_cmd(dev, cdata);
case COMP_CMD_GET_VALUE:
return dai_ctrl_get_cmd(dev, cdata);
default:
return -EINVAL;
}
}

static struct comp_driver comp_dai = {
.type = SOF_COMP_DAI,
.ops = {
Expand All @@ -700,6 +775,7 @@ static struct comp_driver comp_dai = {
.reset = dai_reset,
.dai_config = dai_config,
.position = dai_position,
.cmd = dai_cmd,
},
};

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