linux/sound/pci/ctxfi/ctamixer.h
Wai Yew CHAY 8cc7236148 ALSA: SB X-Fi driver merge
The Sound Blaster X-Fi driver supports Creative solutions based on
20K1 and 20K2 chipsets.

Supported hardware :

Creative Sound Blaster X-Fi Titanium Fatal1ty® Champion Series
Creative Sound Blaster X-Fi Titanium Fatal1ty Professional Series
Creative Sound Blaster X-Fi Titanium Professional Audio
Creative Sound Blaster X-Fi Titanium
Creative Sound Blaster X-Fi Elite Pro
Creative Sound Blaster X-Fi Platinum
Creative Sound Blaster X-Fi Fatal1ty
Creative Sound Blaster X-Fi XtremeGamer
Creative Sound Blaster X-Fi XtremeMusic

Current release features:

* ALSA PCM Playback
* ALSA Record
* ALSA Mixer

Note:

* External I/O modules detection not included.

Signed-off-by: Wai Yew CHAY <wychay@ctl.creative.com>
Singed-off-by: Ryan RICHARDS <ryan_richards@creativelabs.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-05-14 08:24:10 +02:00

96 lines
2.7 KiB
C

/**
* Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
*
* This source file is released under GPL v2 license (no other versions).
* See the COPYING file included in the main directory of this source
* distribution for the license terms and conditions.
*
* @File ctamixer.h
*
* @Brief
* This file contains the definition of the Audio Mixer
* resource management object.
*
* @Author Liu Chun
* @Date May 21 2008
*
*/
#ifndef CTAMIXER_H
#define CTAMIXER_H
#include "ctresource.h"
#include <linux/spinlock.h>
/* Define the descriptor of a summation node resource */
struct sum {
struct rsc rsc; /* Basic resource info */
unsigned char idx[8];
};
/* Define sum resource request description info */
struct sum_desc {
unsigned int msr;
};
struct sum_mgr {
struct rsc_mgr mgr; /* Basic resource manager info */
spinlock_t mgr_lock;
/* request one sum resource */
int (*get_sum)(struct sum_mgr *mgr,
const struct sum_desc *desc, struct sum **rsum);
/* return one sum resource */
int (*put_sum)(struct sum_mgr *mgr, struct sum *sum);
};
/* Constructor and destructor of daio resource manager */
int sum_mgr_create(void *hw, struct sum_mgr **rsum_mgr);
int sum_mgr_destroy(struct sum_mgr *sum_mgr);
/* Define the descriptor of a amixer resource */
struct amixer_rsc_ops;
struct amixer {
struct rsc rsc; /* Basic resource info */
unsigned char idx[8];
struct rsc *input; /* pointer to a resource acting as source */
struct sum *sum; /* Put amixer output to this summation node */
struct amixer_rsc_ops *ops; /* AMixer specific operations */
};
struct amixer_rsc_ops {
int (*set_input)(struct amixer *amixer, struct rsc *rsc);
int (*set_scale)(struct amixer *amixer, unsigned int scale);
int (*set_invalid_squash)(struct amixer *amixer, unsigned int iv);
int (*set_sum)(struct amixer *amixer, struct sum *sum);
int (*commit_write)(struct amixer *amixer);
/* Only for interleaved recording */
int (*commit_raw_write)(struct amixer *amixer);
int (*setup)(struct amixer *amixer, struct rsc *input,
unsigned int scale, struct sum *sum);
int (*get_scale)(struct amixer *amixer);
};
/* Define amixer resource request description info */
struct amixer_desc {
unsigned int msr;
};
struct amixer_mgr {
struct rsc_mgr mgr; /* Basic resource manager info */
spinlock_t mgr_lock;
/* request one amixer resource */
int (*get_amixer)(struct amixer_mgr *mgr,
const struct amixer_desc *desc,
struct amixer **ramixer);
/* return one amixer resource */
int (*put_amixer)(struct amixer_mgr *mgr, struct amixer *amixer);
};
/* Constructor and destructor of amixer resource manager */
int amixer_mgr_create(void *hw, struct amixer_mgr **ramixer_mgr);
int amixer_mgr_destroy(struct amixer_mgr *amixer_mgr);
#endif /* CTAMIXER_H */