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/*
* ossp - OSS Proxy: emulate OSS device using CUSE
*
* This file is released under the GPLv2.
*/
#ifndef _OSSP_H
#define _OSSP_H
#include <sys/types.h>
#include <inttypes.h>
#include <semaphore.h>
#include <sys/soundcard.h>
#define OSSP_CMD_MAGIC 0xdeadbeef
#define OSSP_REPLY_MAGIC 0xbeefdead
#define OSSP_NOTIFY_MAGIC 0xbebebebe
#define PLAY 0
#define REC 1
#define LEFT 0
#define RIGHT 1
enum ossp_opcode {
OSSP_MIXER,
OSSP_DSP_OPEN,
OSSP_DSP_READ,
OSSP_DSP_WRITE,
OSSP_DSP_POLL,
OSSP_DSP_MMAP,
OSSP_DSP_MUNMAP,
OSSP_DSP_RESET,
OSSP_DSP_SYNC,
OSSP_DSP_POST,
OSSP_DSP_GET_RATE,
OSSP_DSP_GET_CHANNELS,
OSSP_DSP_GET_FORMAT,
OSSP_DSP_GET_BLKSIZE,
OSSP_DSP_GET_FORMATS,
OSSP_DSP_SET_RATE,
OSSP_DSP_SET_CHANNELS,
OSSP_DSP_SET_FORMAT,
OSSP_DSP_SET_SUBDIVISION,
OSSP_DSP_SET_FRAGMENT,
OSSP_DSP_GET_TRIGGER,
OSSP_DSP_SET_TRIGGER,
OSSP_DSP_GET_OSPACE,
OSSP_DSP_GET_ISPACE,
OSSP_DSP_GET_OPTR,
OSSP_DSP_GET_IPTR,
OSSP_DSP_GET_ODELAY,
OSSP_NR_OPCODES,
};
enum ossp_notify_opcode {
OSSP_NOTIFY_POLL,
OSSP_NOTIFY_OBITUARY,
OSSP_NOTIFY_VOLCHG,
OSSP_NOTIFY_FILL,
OSSP_NOTIFY_STORE,
OSSP_NR_NOTIFY_OPCODES,
};
struct ossp_transfer {
sem_t sem;
size_t pos;
size_t bytes;
};
struct ossp_mixer_arg {
int vol[2][2];
};
struct ossp_dsp_open_arg {
int flags;
pid_t opener_pid;
};
struct ossp_dsp_rw_arg {
unsigned nonblock:1;
};
struct ossp_dsp_mmap_arg {
int dir;
size_t size;
};
struct ossp_cmd {
unsigned magic;
enum ossp_opcode opcode;
size_t din_size;
size_t dout_size;
};
struct ossp_reply {
unsigned magic;
int result;
size_t dout_size; /* <= cmd.data_in_size */
};
struct ossp_notify {
unsigned magic;
enum ossp_notify_opcode opcode;
};
struct ossp_arg_size {
ssize_t carg_size;
ssize_t rarg_size;
unsigned has_fd:1;
};
extern const struct ossp_arg_size ossp_arg_sizes[OSSP_NR_OPCODES];
extern const char *ossp_cmd_str[OSSP_NR_OPCODES];
extern const char *ossp_notify_str[OSSP_NR_NOTIFY_OPCODES];
#endif /* _OSSP_H */
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