diff options
Diffstat (limited to 'include/sound/timer.h')
| -rw-r--r-- | include/sound/timer.h | 38 |
1 files changed, 14 insertions, 24 deletions
diff --git a/include/sound/timer.h b/include/sound/timer.h index 7990469a44ce..760e132cc0cd 100644 --- a/include/sound/timer.h +++ b/include/sound/timer.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ #ifndef __SOUND_TIMER_H #define __SOUND_TIMER_H @@ -5,22 +6,6 @@ * Timer abstract layer * Copyright (c) by Jaroslav Kysela <perex@perex.cz>, * Abramo Bagnara <abramo@alsa-project.org> - * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * */ #include <sound/asound.h> @@ -36,13 +21,13 @@ #define SNDRV_TIMER_HW_STOP 0x00000002 /* call stop before start */ #define SNDRV_TIMER_HW_SLAVE 0x00000004 /* only slave timer (variable resolution) */ #define SNDRV_TIMER_HW_FIRST 0x00000008 /* first tick can be incomplete */ -#define SNDRV_TIMER_HW_TASKLET 0x00000010 /* timer is called from tasklet */ +#define SNDRV_TIMER_HW_WORK 0x00000010 /* timer is called from work */ #define SNDRV_TIMER_IFLG_SLAVE 0x00000001 #define SNDRV_TIMER_IFLG_RUNNING 0x00000002 #define SNDRV_TIMER_IFLG_START 0x00000004 #define SNDRV_TIMER_IFLG_AUTO 0x00000008 /* auto restart */ -#define SNDRV_TIMER_IFLG_FAST 0x00000010 /* fast callback (do not use tasklet) */ +#define SNDRV_TIMER_IFLG_FAST 0x00000010 /* fast callback (do not use work) */ #define SNDRV_TIMER_IFLG_CALLBACK 0x00000020 /* timer callback is active */ #define SNDRV_TIMER_IFLG_EXCLUSIVE 0x00000040 /* exclusive owner - no more instances */ #define SNDRV_TIMER_IFLG_EARLY_EVENT 0x00000080 /* write early event to the poll queue */ @@ -89,7 +74,9 @@ struct snd_timer { struct list_head active_list_head; struct list_head ack_list_head; struct list_head sack_list_head; /* slow ack list head */ - struct tasklet_struct task_queue; + struct work_struct task_work; + int max_instances; /* upper limit of timer instances */ + int num_instances; /* current number of timer instances */ }; struct snd_timer_instance { @@ -102,13 +89,14 @@ struct snd_timer_instance { unsigned long ticks, unsigned long resolution); void (*ccallback) (struct snd_timer_instance * timeri, int event, - struct timespec * tstamp, + struct timespec64 * tstamp, unsigned long resolution); + void (*disconnect)(struct snd_timer_instance *timeri); void *callback_data; unsigned long ticks; /* auto-load ticks when expired */ unsigned long cticks; /* current ticks */ unsigned long pticks; /* accumulated ticks for callback */ - unsigned long resolution; /* current resolution for tasklet */ + unsigned long resolution; /* current resolution for work */ unsigned long lost; /* lost ticks */ int slave_class; unsigned int slave_id; @@ -125,13 +113,15 @@ struct snd_timer_instance { */ int snd_timer_new(struct snd_card *card, char *id, struct snd_timer_id *tid, struct snd_timer **rtimer); -void snd_timer_notify(struct snd_timer *timer, int event, struct timespec *tstamp); +void snd_timer_notify(struct snd_timer *timer, int event, struct timespec64 *tstamp); int snd_timer_global_new(char *id, int device, struct snd_timer **rtimer); int snd_timer_global_free(struct snd_timer *timer); int snd_timer_global_register(struct snd_timer *timer); -int snd_timer_open(struct snd_timer_instance **ti, char *owner, struct snd_timer_id *tid, unsigned int slave_id); -int snd_timer_close(struct snd_timer_instance *timeri); +struct snd_timer_instance *snd_timer_instance_new(const char *owner); +void snd_timer_instance_free(struct snd_timer_instance *timeri); +int snd_timer_open(struct snd_timer_instance *timeri, struct snd_timer_id *tid, unsigned int slave_id); +void snd_timer_close(struct snd_timer_instance *timeri); unsigned long snd_timer_resolution(struct snd_timer_instance *timeri); int snd_timer_start(struct snd_timer_instance *timeri, unsigned int ticks); int snd_timer_stop(struct snd_timer_instance *timeri); |