linux/sound/firewire/oxfw/oxfw-spkr.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * oxfw-spkr.c - a part of driver for OXFW970/971 based devices
 *
 * Copyright (c) Clemens Ladisch <[email protected]>
 */

#include "oxfw.h"

struct fw_spkr { … };

enum control_action { … };
enum control_attribute { … };

static int avc_audio_feature_mute(struct fw_unit *unit, u8 fb_id, bool *value,
				  enum control_action action)
{ … }

static int avc_audio_feature_volume(struct fw_unit *unit, u8 fb_id, s16 *value,
				    unsigned int channel,
				    enum control_attribute attribute,
				    enum control_action action)
{ … }

static int spkr_mute_get(struct snd_kcontrol *control,
			 struct snd_ctl_elem_value *value)
{ … }

static int spkr_mute_put(struct snd_kcontrol *control,
			 struct snd_ctl_elem_value *value)
{ … }

static int spkr_volume_info(struct snd_kcontrol *control,
			    struct snd_ctl_elem_info *info)
{ … }

static const u8 channel_map[6] = …;

static int spkr_volume_get(struct snd_kcontrol *control,
			   struct snd_ctl_elem_value *value)
{ … }

static int spkr_volume_put(struct snd_kcontrol *control,
			   struct snd_ctl_elem_value *value)
{ … }

int snd_oxfw_add_spkr(struct snd_oxfw *oxfw, bool is_lacie)
{ … }