xref: /openbmc/linux/sound/pci/ctxfi/ctmixer.h (revision a08b9f2f)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
4  *
5  * @File	ctmixer.h
6  *
7  * @Brief
8  * This file contains the definition of the mixer device functions.
9  *
10  * @Author	Liu Chun
11  * @Date 	Mar 28 2008
12  */
13 
14 #ifndef CTMIXER_H
15 #define CTMIXER_H
16 
17 #include "ctatc.h"
18 #include "ctresource.h"
19 
20 #define INIT_VOL	0x1c00
21 
22 enum MIXER_PORT_T {
23 	MIX_WAVE_FRONT,
24 	MIX_WAVE_REAR,
25 	MIX_WAVE_CENTLFE,
26 	MIX_WAVE_SURROUND,
27 	MIX_SPDIF_OUT,
28 	MIX_PCMO_FRONT,
29 	MIX_MIC_IN,
30 	MIX_LINE_IN,
31 	MIX_SPDIF_IN,
32 	MIX_PCMI_FRONT,
33 	MIX_PCMI_REAR,
34 	MIX_PCMI_CENTLFE,
35 	MIX_PCMI_SURROUND,
36 
37 	NUM_MIX_PORTS
38 };
39 
40 /* alsa mixer descriptor */
41 struct ct_mixer {
42 	struct ct_atc *atc;
43 
44 	void **amixers;		/* amixer resources for volume control */
45 	void **sums;		/* sum resources for signal collection */
46 	unsigned int switch_state; /* A bit-map to indicate state of switches */
47 
48 	int (*get_output_ports)(struct ct_mixer *mixer, enum MIXER_PORT_T type,
49 				  struct rsc **rleft, struct rsc **rright);
50 
51 	int (*set_input_left)(struct ct_mixer *mixer,
52 			      enum MIXER_PORT_T type, struct rsc *rsc);
53 	int (*set_input_right)(struct ct_mixer *mixer,
54 			       enum MIXER_PORT_T type, struct rsc *rsc);
55 #ifdef CONFIG_PM_SLEEP
56 	int (*resume)(struct ct_mixer *mixer);
57 #endif
58 };
59 
60 int ct_alsa_mix_create(struct ct_atc *atc,
61 		       enum CTALSADEVS device,
62 		       const char *device_name);
63 int ct_mixer_create(struct ct_atc *atc, struct ct_mixer **rmixer);
64 int ct_mixer_destroy(struct ct_mixer *mixer);
65 
66 #endif /* CTMIXER_H */
67