// SPDX-License-Identifier: GPL-2.0
/*
* Greybus audio driver
* Copyright 2015-2016 Google Inc.
* Copyright 2015-2016 Linaro Ltd.
*/
#include <linux/greybus.h>
#include "audio_codec.h"
#define GBAUDIO_INVALID_ID 0xFF
struct gbaudio_ctl_pvt {
unsigned int ctl_id;
unsigned int data_cport;
unsigned int access;
unsigned int vcount;
struct gb_audio_ctl_elem_info *info;
};
static struct gbaudio_module_info *find_gb_module(struct gbaudio_codec_info *codec,
char const *name)
{
int dev_id;
char begin[NAME_SIZE];
struct gbaudio_module_info *module;
if (!name)
return NULL;
if (sscanf(name, "%s %d", begin, &dev_id) != 2)
return NULL;
dev_dbg(codec->dev, "%s:Find module#%d\n", __func__, dev_id);
mutex_lock(&codec->lock);
list_for_each_entry(module, &codec->module_list, list) {
if (module->dev_id == dev_id) {
mutex_unlock(&codec->lock);
return module;
}
}
mutex_unlock(&codec->lock);
dev_warn(codec->dev, "%s: module#%d missing in codec list\n", name,
dev_id);
return NULL;
}
static const char *gbaudio_map_controlid(struct gbaudio_module_info *module,
__u8 control_id, __u8 index)
{
struct gbaudio_control *control;
if (control_id == GBAUDIO_INVALID_ID)
return NULL;
list_for_each_entry(control, &module->ctl_list, list) {
if (control->id</