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#ifndef SPDIF_H
#define SPDIF_H
/*
* Purpose: Definitions for S/PDIF (IEC958) control bit and mixer extension manager
*/
/*
*
* This file is part of Open Sound System.
*
* Copyright (C) 4Front Technologies 1996-2008.
*
* This 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.
*
*/
typedef struct oss_spdif_driver spdif_driver_t;
#define set_cbit(array, byte, bit, v) {array[byte] &= ~(1 << bit);array[byte] |= ((v&1)<<bit);}
#define get_cbit(array, byte, bit) ((array[byte] >> bit)&1)
typedef struct
{
int is_ok;
oss_mutex_t mutex;
oss_device_t *osdev;
void *host_devc;
void *host_portc;
int flags;
unsigned int caps;
#define SPDF_IN 0x00000001
#define SPDF_OUT 0x00000002
#define SPDF_ENABLE 0x00000004
#define SPDF_RATECTL 0x00000008
spdif_driver_t *d;
oss_digital_control *ctl, hot_ctl, cold_ctl;
int open_mode;
int mixer_dev;
int group;
int mixer_blocked;
} spdif_devc;
/*
* reprogram 'mask' bits
*/
#define REPGM_ALL 0xffffffff
#define REPGM_NOTHING 0x00000000
#define REPGM_RATE 0x00000001
#define REPGM_VBIT 0x00000002
#define REPGM_DENABLE 0x00000004
#define REPGM_AENABLE 0x00000008
#define REPGM_CBIT0 0x00000010
#define REPGM_CBIT1 0x00000020
#define REPGM_CBIT2 0x00000040
#define REPGM_CBIT3 0x00000080
#define REPGM_CBIT4_23 0x00000100
#define REPGM_CBITALL 0x000001f0
#define REPGM_UBITALL 0x00000200
#define REPGM_OUTSEL 0x00000400
#define SPDIF_NOIOCTL 0x12344321 /* Bits of magic */
struct oss_spdif_driver
{
int (*reprogram_device) (void *_devc, void *_portc,
oss_digital_control * ctl, unsigned int mask);
int (*get_status) (void *_devc, void *_portc, oss_digital_control * ctl,
int rqbits);
int (*exec_request) (void *_devc, void *_portc, int rq, int param);
};
extern int oss_spdif_install (spdif_devc * devc, oss_device_t * osdev,
spdif_driver_t * d, int driver_size,
void *host_devc, void *host_portc,
int mixer_dev, int flags, unsigned int caps);
extern void oss_spdif_uninstall (spdif_devc * devc);
extern int oss_spdif_open (spdif_devc * devc, int open_mode);
extern void oss_spdif_close (spdif_devc * devc, int open_mode);
extern void oss_spdif_setrate (spdif_devc * devc, int rate);
extern int oss_spdif_mix_init (spdif_devc * devc);
extern int oss_spdif_ioctl (spdif_devc * devc, int open_mode, unsigned int cmd,
ioctl_arg arg);
/*
* oss_digital_control->filler usage
*/
#define pro_mode filler[0]
#define rate_bits filler[1]
#define emphasis_type filler[2]
#endif
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