00001 00028 #ifndef __ALSA_TIMER_H 00029 #define __ALSA_TIMER_H 00030 00031 #ifdef __cplusplus 00032 extern "C" { 00033 #endif 00034 00042 #define SND_TIMER_DLSYM_VERSION _dlsym_timer_001 00043 00044 #define SND_TIMER_QUERY_DLSYM_VERSION _dlsym_timer_query_001 00045 00047 typedef struct _snd_timer_id snd_timer_id_t; 00049 typedef struct _snd_timer_info snd_timer_info_t; 00051 typedef struct _snd_timer_params snd_timer_params_t; 00053 typedef struct _snd_timer_status snd_timer_status_t; 00055 typedef struct _snd_timer_read { 00056 unsigned int resolution; 00057 unsigned int ticks; 00058 } snd_timer_read_t; 00059 00061 typedef enum _snd_timer_class { 00062 SND_TIMER_CLASS_NONE = -1, 00063 SND_TIMER_CLASS_SLAVE = 0, 00064 SND_TIMER_CLASS_GLOBAL, 00065 SND_TIMER_CLASS_CARD, 00066 SND_TIMER_CLASS_PCM, 00067 SND_TIMER_CLASS_LAST = SND_TIMER_CLASS_PCM 00068 } snd_timer_class_t; 00069 00071 typedef enum _snd_timer_slave_class { 00072 SND_TIMER_SCLASS_NONE = 0, 00073 SND_TIMER_SCLASS_APPLICATION, 00074 SND_TIMER_SCLASS_SEQUENCER, 00075 SND_TIMER_SCLASS_OSS_SEQUENCER, 00076 SND_TIMER_SCLASS_LAST = SND_TIMER_SCLASS_OSS_SEQUENCER 00077 } snd_timer_slave_class_t; 00078 00080 #define SND_TIMER_GLOBAL_SYSTEM 0 00081 00082 #define SND_TIMER_GLOBAL_RTC 1 00083 00085 #define SND_TIMER_OPEN_NONBLOCK 0x0001 00086 00088 typedef enum _snd_timer_type { 00090 SND_TIMER_TYPE_HW = 0, 00092 SND_TIMER_TYPE_SHM, 00094 SND_TIMER_TYPE_INET 00095 } snd_timer_type_t; 00096 00098 typedef struct _snd_timer_query snd_timer_query_t; 00100 typedef struct _snd_timer snd_timer_t; 00101 00102 00103 int snd_timer_query_open(snd_timer_query_t **handle, const char *name, int mode); 00104 int snd_timer_query_open_lconf(snd_timer_query_t **handle, const char *name, int mode, snd_config_t *lconf); 00105 int snd_timer_query_close(snd_timer_query_t *handle); 00106 int snd_timer_query_next_device(snd_timer_query_t *handle, snd_timer_id_t *tid); 00107 00108 int snd_timer_open(snd_timer_t **handle, const char *name, int mode); 00109 int snd_timer_open_lconf(snd_timer_t **handle, const char *name, int mode, snd_config_t *lconf); 00110 int snd_timer_close(snd_timer_t *handle); 00111 int snd_timer_poll_descriptors_count(snd_timer_t *handle); 00112 int snd_timer_poll_descriptors(snd_timer_t *handle, struct pollfd *pfds, unsigned int space); 00113 int snd_timer_poll_descriptors_revents(snd_timer_t *timer, struct pollfd *pfds, unsigned int nfds, unsigned short *revents); 00114 int snd_timer_info(snd_timer_t *handle, snd_timer_info_t *timer); 00115 int snd_timer_params(snd_timer_t *handle, snd_timer_params_t *params); 00116 int snd_timer_status(snd_timer_t *handle, snd_timer_status_t *status); 00117 int snd_timer_start(snd_timer_t *handle); 00118 int snd_timer_stop(snd_timer_t *handle); 00119 int snd_timer_continue(snd_timer_t *handle); 00120 ssize_t snd_timer_read(snd_timer_t *handle, void *buffer, size_t size); 00121 00122 size_t snd_timer_id_sizeof(void); 00124 #define snd_timer_id_alloca(ptr) do { assert(ptr); *ptr = (snd_timer_id_t *) alloca(snd_timer_id_sizeof()); memset(*ptr, 0, snd_timer_id_sizeof()); } while (0) 00125 int snd_timer_id_malloc(snd_timer_id_t **ptr); 00126 void snd_timer_id_free(snd_timer_id_t *obj); 00127 void snd_timer_id_copy(snd_timer_id_t *dst, const snd_timer_id_t *src); 00128 00129 void snd_timer_id_set_class(snd_timer_id_t *id, int dev_class); 00130 int snd_timer_id_get_class(snd_timer_id_t *id); 00131 void snd_timer_id_set_sclass(snd_timer_id_t *id, int dev_sclass); 00132 int snd_timer_id_get_sclass(snd_timer_id_t *id); 00133 void snd_timer_id_set_card(snd_timer_id_t *id, int card); 00134 int snd_timer_id_get_card(snd_timer_id_t *id); 00135 void snd_timer_id_set_device(snd_timer_id_t *id, int device); 00136 int snd_timer_id_get_device(snd_timer_id_t *id); 00137 void snd_timer_id_set_subdevice(snd_timer_id_t *id, int subdevice); 00138 int snd_timer_id_get_subdevice(snd_timer_id_t *id); 00139 00140 size_t snd_timer_info_sizeof(void); 00142 #define snd_timer_info_alloca(ptr) do { assert(ptr); *ptr = (snd_timer_info_t *) alloca(snd_timer_info_sizeof()); memset(*ptr, 0, snd_timer_info_sizeof()); } while (0) 00143 int snd_timer_info_malloc(snd_timer_info_t **ptr); 00144 void snd_timer_info_free(snd_timer_info_t *obj); 00145 void snd_timer_info_copy(snd_timer_info_t *dst, const snd_timer_info_t *src); 00146 00147 int snd_timer_info_is_slave(snd_timer_info_t * info); 00148 int snd_timer_info_get_card(snd_timer_info_t * info); 00149 const char *snd_timer_info_get_id(snd_timer_info_t * info); 00150 const char *snd_timer_info_get_name(snd_timer_info_t * info); 00151 long snd_timer_info_get_ticks(snd_timer_info_t * info); 00152 long snd_timer_info_get_resolution(snd_timer_info_t * info); 00153 00154 size_t snd_timer_params_sizeof(void); 00156 #define snd_timer_params_alloca(ptr) do { assert(ptr); *ptr = (snd_timer_params_t *) alloca(snd_timer_params_sizeof()); memset(*ptr, 0, snd_timer_params_sizeof()); } while (0) 00157 int snd_timer_params_malloc(snd_timer_params_t **ptr); 00158 void snd_timer_params_free(snd_timer_params_t *obj); 00159 void snd_timer_params_copy(snd_timer_params_t *dst, const snd_timer_params_t *src); 00160 00161 void snd_timer_params_set_auto_start(snd_timer_params_t * params, int auto_start); 00162 void snd_timer_params_set_ticks(snd_timer_params_t * params, long ticks); 00163 long snd_timer_params_get_ticks(snd_timer_params_t * params); 00164 void snd_timer_params_set_queue_size(snd_timer_params_t * params, long queue_size); 00165 long snd_timer_params_get_queue_size(snd_timer_params_t * params); 00166 00167 size_t snd_timer_status_sizeof(void); 00169 #define snd_timer_status_alloca(ptr) do { assert(ptr); *ptr = (snd_timer_status_t *) alloca(snd_timer_status_sizeof()); memset(*ptr, 0, snd_timer_status_sizeof()); } while (0) 00170 int snd_timer_status_malloc(snd_timer_status_t **ptr); 00171 void snd_timer_status_free(snd_timer_status_t *obj); 00172 void snd_timer_status_copy(snd_timer_status_t *dst, const snd_timer_status_t *src); 00173 00174 struct timeval snd_timer_status_get_timestamp(snd_timer_status_t * status); 00175 long snd_timer_status_get_resolution(snd_timer_status_t * status); 00176 long snd_timer_status_get_lost(snd_timer_status_t * status); 00177 long snd_timer_status_get_overrun(snd_timer_status_t * status); 00178 long snd_timer_status_get_queue(snd_timer_status_t * status); 00179 00182 #ifdef __cplusplus 00183 } 00184 #endif 00185 00186 #endif