1 /* 2 * Timer interface - local header file 3 * Copyright (c) 2001 by Jaroslav Kysela <perex (at) 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 * 20 */ 21 22 #include <stdio.h> 23 #include <stdlib.h> 24 #include <limits.h> 25 #include "local.h" 26 27 #ifndef DOC_HIDDEN 28 typedef struct { 29 int (*close)(snd_timer_t *timer); 30 int (*nonblock)(snd_timer_t *timer, int nonblock); 31 int (*async)(snd_timer_t *timer, int sig, pid_t pid); 32 int (*info)(snd_timer_t *timer, snd_timer_info_t *info); 33 int (*params)(snd_timer_t *timer, snd_timer_params_t *params); 34 int (*status)(snd_timer_t *timer, snd_timer_status_t *status); 35 int (*rt_start)(snd_timer_t *timer); 36 int (*rt_stop)(snd_timer_t *timer); 37 int (*rt_continue)(snd_timer_t *timer); 38 ssize_t (*read)(snd_timer_t *timer, void *buffer, size_t size); 39 } snd_timer_ops_t; 40 41 struct _snd_timer { 42 unsigned int version; 43 void *dl_handle; 44 char *name; 45 snd_timer_type_t type; 46 int mode; 47 int poll_fd; 48 const snd_timer_ops_t *ops; 49 void *private_data; 50 struct list_head async_handlers; 51 }; 52 53 typedef struct { 54 int (*close)(snd_timer_query_t *timer); 55 int (*next_device)(snd_timer_query_t *timer, snd_timer_id_t *tid); 56 int (*info)(snd_timer_query_t *timer, snd_timer_ginfo_t *info); 57 int (*params)(snd_timer_query_t *timer, snd_timer_gparams_t *info); 58 int (*status)(snd_timer_query_t *timer, snd_timer_gstatus_t *info); 59 } snd_timer_query_ops_t; 60 61 struct _snd_timer_query { 62 void *dl_handle; 63 char *name; 64 snd_timer_type_t type; 65 int mode; 66 int poll_fd; 67 snd_timer_query_ops_t *ops; 68 void *private_data; 69 }; 70 #endif /* DOC_HIDDEN */ 71 72 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); 73 74 int snd_timer_query_hw_open(snd_timer_query_t **handle, const char *name, int mode); 75 76 int snd_timer_async(snd_timer_t *timer, int sig, pid_t pid); 77
