alsa-utils/alsactl/alsactl.h
Jaroslav Kysela eefc2c61cf alsactl: use card iterator functions for all card loops
Take the card iterator idea from the monitor code and
use it for all card loops. It reduces the code duplications
and makes things easy to review.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2021-03-11 09:23:33 +01:00

83 lines
3.1 KiB
C

#include <stdbool.h>
#include <alsa/asoundlib.h>
extern int debugflag;
extern int force_restore;
extern int ignore_nocards;
extern int do_lock;
extern int use_syslog;
extern char *command;
extern char *statefile;
extern char *lockfile;
struct snd_card_iterator {
int card;
char name[16];
bool single;
bool first;
};
void info_(const char *fcn, long line, const char *fmt, ...);
void error_(const char *fcn, long line, const char *fmt, ...);
void cerror_(const char *fcn, long line, int cond, const char *fmt, ...);
void dbg_(const char *fcn, long line, const char *fmt, ...);
void error_handler(const char *file, int line, const char *function, int err, const char *fmt, ...);
#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)
#define info(...) do { info_(__func__, __LINE__, __VA_ARGS__); } while (0)
#define error(...) do { error_(__func__, __LINE__, __VA_ARGS__); } while (0)
#define cerror(cond, ...) do { cerror_(__func__, __LINE__, (cond) != 0, __VA_ARGS__); } while (0)
#define dbg(...) do { dbg_(__func__, __LINE__, __VA_ARGS__); } while (0)
#else
#define info(args...) do { info_(__func__, __LINE__, ##args); } while (0)
#define error(args...) do { error_(__func__, __LINE__, ##args); } while (0)
#define cerror(cond, ...) do { error_(__func__, __LINE__, (cond) != 0, ##args); } while (0)
#define dbg(args...) do { dbg_(__func__, __LINE__, ##args); } while (0)
#endif
#define FLAG_UCM_DISABLED (1<<0)
#define FLAG_UCM_FBOOT (1<<1)
#define FLAG_UCM_BOOT (1<<2)
#define FLAG_UCM_DEFAULTS (1<<3)
void snd_card_iterator_init(struct snd_card_iterator *iter, int cardno);
int snd_card_iterator_sinit(struct snd_card_iterator *iter, const char *cardname);
const char *snd_card_iterator_next(struct snd_card_iterator *iter);
int snd_card_iterator_error(struct snd_card_iterator *iter);
int load_configuration(const char *file, snd_config_t **top, int *open_failed);
int init(const char *file, int flags, const char *cardname);
int init_ucm(int flags, int cardno);
int state_lock(const char *file, int timeout);
int state_unlock(int fd, const char *file);
int save_state(const char *file, const char *cardname);
int load_state(const char *file, const char *initfile, int initflags,
const char *cardname, int do_init);
int power(const char *argv[], int argc);
int monitor(const char *name);
int state_daemon(const char *file, const char *cardname, int period,
const char *pidfile);
int state_daemon_kill(const char *pidfile, const char *cmd);
int clean(const char *cardname, char *const *extra_args);
/* utils */
int file_map(const char *filename, char **buf, size_t *bufsize);
void file_unmap(void *buf, size_t bufsize);
size_t line_width(const char *buf, size_t bufsize, size_t pos);
void initfailed(int cardnumber, const char *reason, int exitcode);
static inline int hextodigit(int c)
{
if (c >= '0' && c <= '9')
c -= '0';
else if (c >= 'a' && c <= 'f')
c = c - 'a' + 10;
else if (c >= 'A' && c <= 'F')
c = c - 'A' + 10;
else
return -1;
return c;
}
#define ARRAY_SIZE(a) (sizeof (a) / sizeof (a)[0])