2 * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
4 * This source file is released under GPL v2 license (no other versions).
5 * See the COPYING file included in the main directory of this source
6 * distribution for the license terms and conditions.
11 * This file contains the definition of the mixer device functions.
22 #include "ctresource.h"
24 #define INIT_VOL 0x1c00
44 /* alsa mixer descriptor */
48 void **amixers; /* amixer resources for volume control */
49 void **sums; /* sum resources for signal collection */
50 unsigned int switch_state; /* A bit-map to indicate state of switches */
52 int (*get_output_ports)(struct ct_mixer *mixer, enum MIXER_PORT_T type,
53 struct rsc **rleft, struct rsc **rright);
55 int (*set_input_left)(struct ct_mixer *mixer,
56 enum MIXER_PORT_T type, struct rsc *rsc);
57 int (*set_input_right)(struct ct_mixer *mixer,
58 enum MIXER_PORT_T type, struct rsc *rsc);
60 int (*resume)(struct ct_mixer *mixer);
64 int ct_alsa_mix_create(struct ct_atc *atc,
65 enum CTALSADEVS device,
66 const char *device_name);
67 int ct_mixer_create(struct ct_atc *atc, struct ct_mixer **rmixer);
68 int ct_mixer_destroy(struct ct_mixer *mixer);
70 #endif /* CTMIXER_H */