1 /* 2 * Timer interface - local header file 3 * Copyright (c) 2001 by Jaroslav Kysela <perex@perex.cz> 4 * 5 * 6 * This library is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU Lesser General Public License as 8 * published by the Free Software Foundation; either version 2.1 of 9 * the License, or (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 19 * 20 */ 21 22 #include "local.h" 23 #include <limits.h> 24 #include <sys/ioctl.h> 25 26 #ifndef DOC_HIDDEN 27 typedef struct { 28 int (*close)(snd_timer_t *timer); 29 int (*nonblock)(snd_timer_t *timer, int nonblock); 30 int (*async)(snd_timer_t *timer, int sig, pid_t pid); 31 int (*info)(snd_timer_t *timer, snd_timer_info_t *info); 32 int (*params)(snd_timer_t *timer, snd_timer_params_t *params); 33 int (*status)(snd_timer_t *timer, snd_timer_status_t *status); 34 int (*rt_start)(snd_timer_t *timer); 35 int (*rt_stop)(snd_timer_t *timer); 36 int (*rt_continue)(snd_timer_t *timer); 37 ssize_t (*read)(snd_timer_t *timer, void *buffer, size_t size); 38 } snd_timer_ops_t; 39 40 struct _snd_timer { 41 unsigned int version; 42 void *dl_handle; 43 char *name; 44 snd_timer_type_t type; 45 int mode; 46 int poll_fd; 47 const snd_timer_ops_t *ops; 48 void *private_data; 49 struct list_head async_handlers; 50 }; 51 52 typedef struct { 53 int (*close)(snd_timer_query_t *timer); 54 int (*next_device)(snd_timer_query_t *timer, snd_timer_id_t *tid); 55 int (*info)(snd_timer_query_t *timer, snd_timer_ginfo_t *info); 56 int (*params)(snd_timer_query_t *timer, snd_timer_gparams_t *info); 57 int (*status)(snd_timer_query_t *timer, snd_timer_gstatus_t *info); 58 } snd_timer_query_ops_t; 59 60 struct _snd_timer_query { 61 void *dl_handle; 62 char *name; 63 snd_timer_type_t type; 64 int mode; 65 int poll_fd; 66 const snd_timer_query_ops_t *ops; 67 void *private_data; 68 }; 69 #endif /* DOC_HIDDEN */ 70 71 int snd_timer_hw_open(snd_timer_t **handle, const char *name, int dev_class, int dev_sclass, int card, int device, int subdevice, int mode); 72 73 int snd_timer_query_hw_open(snd_timer_query_t **handle, const char *name, int mode); 74 75 int snd_timer_async(snd_timer_t *timer, int sig, pid_t pid); 76 77 #ifdef INTERNAL 78 int INTERNAL(snd_timer_params_set_exclusive)(snd_timer_params_t * params, int exclusive); 79 int INTERNAL(snd_timer_params_get_exclusive)(snd_timer_params_t * params); 80 void INTERNAL(snd_timer_params_set_filter)(snd_timer_params_t * params, unsigned int filter); 81 unsigned int INTERNAL(snd_timer_params_get_filter)(snd_timer_params_t * params); 82 int INTERNAL(snd_timer_query_info)(snd_timer_query_t *timer, snd_timer_ginfo_t *info); 83 int INTERNAL(snd_timer_query_params)(snd_timer_query_t *timer, snd_timer_gparams_t *params); 84 int INTERNAL(snd_timer_query_status)(snd_timer_query_t *timer, snd_timer_gstatus_t *status); 85 #endif /* INTERNAL */ 86