diff options
| author | Vaibhav Agarwal <vaibhav.agarwal@linaro.org> | 2016-07-05 17:09:20 -0500 |
|---|---|---|
| committer | Alex Elder <elder@linaro.org> | 2016-07-05 21:17:51 -0500 |
| commit | 0c15a9e0f3f7174718351fcb1c16be944f3b8a57 (patch) | |
| tree | bc4230a926c296727c64d0b2d6f70a4f72eb7f13 /drivers/staging/greybus/audio_topology.c | |
| parent | 957ccca08a990888e2a8f057dee646b8f37b1660 (diff) | |
greybus: audio: topology: Add helper API to map controlid with widget name
This API is used by enumerated controls .get/.set callback functions to
fetch control id associated with a widget.
Signed-off-by: Vaibhav Agarwal <vaibhav.agarwal@linaro.org>
Reviewed-by: Mark Greer <mark.greer@animalcreek.com>
Signed-off-by: Alex Elder <elder@linaro.org>
Diffstat (limited to 'drivers/staging/greybus/audio_topology.c')
| -rw-r--r-- | drivers/staging/greybus/audio_topology.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/staging/greybus/audio_topology.c b/drivers/staging/greybus/audio_topology.c index 1f9e8b6178dd..1bc987449180 100644 --- a/drivers/staging/greybus/audio_topology.c +++ b/drivers/staging/greybus/audio_topology.c @@ -77,6 +77,20 @@ static const char *gbaudio_map_controlid(struct gbaudio_module_info *module, return NULL; } +static int gbaudio_map_wcontrolname(struct gbaudio_module_info *module, + const char *name) +{ + struct gbaudio_control *control; + + list_for_each_entry(control, &module->widget_ctl_list, list) { + if (!strncmp(control->wname, name, NAME_SIZE)) + return control->id; + } + dev_warn(module->dev, "%s: missing in modules controls list\n", name); + + return -EINVAL; +} + static int gbaudio_map_widgetname(struct gbaudio_module_info *module, const char *name) { @@ -652,6 +666,8 @@ static int gbaudio_tplg_create_widget(struct gbaudio_module_info *module, } control->id = curr->id; control->name = curr->name; + control->wname = w->name; + if (curr->info.type == GB_AUDIO_CTL_ELEM_TYPE_ENUMERATED) control->texts = (const char * const *) curr->info.value.enumerated.names; |