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TOMOYO Linux Cross Reference
Linux/sound/pci/ctxfi/ctmixer.h

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  1 /**
  2  * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
  3  *
  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.
  7  *
  8  * @File        ctmixer.h
  9  *
 10  * @Brief
 11  * This file contains the definition of the mixer device functions.
 12  *
 13  * @Author      Liu Chun
 14  * @Date        Mar 28 2008
 15  *
 16  */
 17 
 18 #ifndef CTMIXER_H
 19 #define CTMIXER_H
 20 
 21 #include "ctatc.h"
 22 #include "ctresource.h"
 23 
 24 #define INIT_VOL        0x1c00
 25 
 26 enum MIXER_PORT_T {
 27         MIX_WAVE_FRONT,
 28         MIX_WAVE_REAR,
 29         MIX_WAVE_CENTLFE,
 30         MIX_WAVE_SURROUND,
 31         MIX_SPDIF_OUT,
 32         MIX_PCMO_FRONT,
 33         MIX_MIC_IN,
 34         MIX_LINE_IN,
 35         MIX_SPDIF_IN,
 36         MIX_PCMI_FRONT,
 37         MIX_PCMI_REAR,
 38         MIX_PCMI_CENTLFE,
 39         MIX_PCMI_SURROUND,
 40 
 41         NUM_MIX_PORTS
 42 };
 43 
 44 /* alsa mixer descriptor */
 45 struct ct_mixer {
 46         struct ct_atc *atc;
 47 
 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 */
 51 
 52         int (*get_output_ports)(struct ct_mixer *mixer, enum MIXER_PORT_T type,
 53                                   struct rsc **rleft, struct rsc **rright);
 54 
 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);
 59 #ifdef CONFIG_PM_SLEEP
 60         int (*resume)(struct ct_mixer *mixer);
 61 #endif
 62 };
 63 
 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);
 69 
 70 #endif /* CTMIXER_H */
 71 

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