diff options
Diffstat (limited to 'sound/core/timer.c')
| -rw-r--r-- | sound/core/timer.c | 407 |
1 files changed, 208 insertions, 199 deletions
diff --git a/sound/core/timer.c b/sound/core/timer.c index 1b90a38d10f..2425b971b24 100644 --- a/sound/core/timer.c +++ b/sound/core/timer.c @@ -53,8 +53,8 @@ MODULE_LICENSE("GPL"); module_param(timer_limit, int, 0444); MODULE_PARM_DESC(timer_limit, "Maximum global timers in system."); -typedef struct { - snd_timer_instance_t *timeri; +struct snd_timer_user { + struct snd_timer_instance *timeri; int tread; /* enhanced read with timestamps and events */ unsigned long ticks; unsigned long overrun; @@ -62,8 +62,8 @@ typedef struct { int qtail; int qused; int queue_size; - snd_timer_read_t *queue; - snd_timer_tread_t *tqueue; + struct snd_timer_read *queue; + struct snd_timer_tread *tqueue; spinlock_t qlock; unsigned long last_resolution; unsigned int filter; @@ -71,7 +71,7 @@ typedef struct { wait_queue_head_t qchange_sleep; struct fasync_struct *fasync; struct semaphore tread_sem; -} snd_timer_user_t; +}; /* list of timers */ static LIST_HEAD(snd_timer_list); @@ -84,21 +84,21 @@ static DEFINE_SPINLOCK(slave_active_lock); static DECLARE_MUTEX(register_mutex); -static int snd_timer_free(snd_timer_t *timer); -static int snd_timer_dev_free(snd_device_t *device); -static int snd_timer_dev_register(snd_device_t *device); -static int snd_timer_dev_unregister(snd_device_t *device); +static int snd_timer_free(struct snd_timer *timer); +static int snd_timer_dev_free(struct snd_device *device); +static int snd_timer_dev_register(struct snd_device *device); +static int snd_timer_dev_unregister(struct snd_device *device); -static void snd_timer_reschedule(snd_timer_t * timer, unsigned long ticks_left); +static void snd_timer_reschedule(struct snd_timer * timer, unsigned long ticks_left); /* * create a timer instance with the given owner string. * when timer is not NULL, increments the module counter */ -static snd_timer_instance_t *snd_timer_instance_new(char *owner, - snd_timer_t *timer) +static struct snd_timer_instance *snd_timer_instance_new(char *owner, + struct snd_timer *timer) { - snd_timer_instance_t *timeri; + struct snd_timer_instance *timeri; timeri = kzalloc(sizeof(*timeri), GFP_KERNEL); if (timeri == NULL) return NULL; @@ -126,13 +126,13 @@ static snd_timer_instance_t *snd_timer_instance_new(char *owner, /* * find a timer instance from the given timer id */ -static snd_timer_t *snd_timer_find(snd_timer_id_t *tid) +static struct snd_timer *snd_timer_find(struct snd_timer_id *tid) { - snd_timer_t *timer = NULL; + struct snd_timer *timer = NULL; struct list_head *p; list_for_each(p, &snd_timer_list) { - timer = list_entry(p, snd_timer_t, device_list); + timer = list_entry(p, struct snd_timer, device_list); if (timer->tmr_class != tid->dev_class) continue; @@ -152,7 +152,7 @@ static snd_timer_t *snd_timer_find(snd_timer_id_t *tid) #ifdef CONFIG_KMOD -static void snd_timer_request(snd_timer_id_t *tid) +static void snd_timer_request(struct snd_timer_id *tid) { if (! current->fs->root) return; @@ -179,17 +179,17 @@ static void snd_timer_request(snd_timer_id_t *tid) * * call this with register_mutex down. */ -static void snd_timer_check_slave(snd_timer_instance_t *slave) +static void snd_timer_check_slave(struct snd_timer_instance *slave) { - snd_timer_t *timer; - snd_timer_instance_t *master; + struct snd_timer *timer; + struct snd_timer_instance *master; struct list_head *p, *q; /* FIXME: it's really dumb to look up all entries.. */ list_for_each(p, &snd_timer_list) { - timer = list_entry(p, snd_timer_t, device_list); + timer = list_entry(p, struct snd_timer, device_list); list_for_each(q, &timer->open_list_head) { - master = list_entry(q, snd_timer_instance_t, open_list); + master = list_entry(q, struct snd_timer_instance, open_list); if (slave->slave_class == master->slave_class && slave->slave_id == master->slave_id) { list_del(&slave->open_list); @@ -211,14 +211,14 @@ static void snd_timer_check_slave(snd_timer_instance_t *slave) * * call this with register_mutex down. */ -static void snd_timer_check_master(snd_timer_instance_t *master) +static void snd_timer_check_master(struct snd_timer_instance *master) { - snd_timer_instance_t *slave; + struct snd_timer_instance *slave; struct list_head *p, *n; /* check all pending slaves */ list_for_each_safe(p, n, &snd_timer_slave_list) { - slave = list_entry(p, snd_timer_instance_t, open_list); + slave = list_entry(p, struct snd_timer_instance, open_list); if (slave->slave_class == master->slave_class && slave->slave_id == master->slave_id) { list_del(p); @@ -238,12 +238,12 @@ static void snd_timer_check_master(snd_timer_instance_t *master) * open a timer instance * when opening a master, the slave id must be here given. */ -int snd_timer_open(snd_timer_instance_t **ti, - char *owner, snd_timer_id_t *tid, +int snd_timer_open(struct snd_timer_instance **ti, + char *owner, struct snd_timer_id *tid, unsigned int slave_id) { - snd_timer_t *timer; - snd_timer_instance_t *timeri = NULL; + struct snd_timer *timer; + struct snd_timer_instance *timeri = NULL; if (tid->dev_class == SNDRV_TIMER_CLASS_SLAVE) { /* open a slave instance */ @@ -285,7 +285,7 @@ int snd_timer_open(snd_timer_instance_t **ti, } if (!list_empty(&timer->open_list_head)) { timeri = list_entry(timer->open_list_head.next, - snd_timer_instance_t, open_list); + struct snd_timer_instance, open_list); if (timeri->flags & SNDRV_TIMER_IFLG_EXCLUSIVE) { up(®ister_mutex); return -EBUSY; @@ -307,17 +307,17 @@ int snd_timer_open(snd_timer_instance_t **ti, return 0; } -static int _snd_timer_stop(snd_timer_instance_t * timeri, - int keep_flag, enum sndrv_timer_event event); +static int _snd_timer_stop(struct snd_timer_instance *timeri, + int keep_flag, int event); /* * close a timer instance */ -int snd_timer_close(snd_timer_instance_t * timeri) +int snd_timer_close(struct snd_timer_instance *timeri) { - snd_timer_t *timer = NULL; + struct snd_timer *timer = NULL; struct list_head *p, *n; - snd_timer_instance_t *slave; + struct snd_timer_instance *slave; snd_assert(timeri != NULL, return -ENXIO); @@ -353,7 +353,7 @@ int snd_timer_close(snd_timer_instance_t * timeri) timer->hw.close(timer); /* remove slave links */ list_for_each_safe(p, n, &timeri->slave_list_head) { - slave = list_entry(p, snd_timer_instance_t, open_list); + slave = list_entry(p, struct snd_timer_instance, open_list); spin_lock_irq(&slave_active_lock); _snd_timer_stop(slave, 1, SNDRV_TIMER_EVENT_RESOLUTION); list_del(p); @@ -373,9 +373,9 @@ int snd_timer_close(snd_timer_instance_t * timeri) return 0; } -unsigned long snd_timer_resolution(snd_timer_instance_t * timeri) +unsigned long snd_timer_resolution(struct snd_timer_instance *timeri) { - snd_timer_t * timer; + struct snd_timer * timer; if (timeri == NULL) return 0; @@ -387,13 +387,12 @@ unsigned long snd_timer_resolution(snd_timer_instance_t * timeri) return 0; } -static void snd_timer_notify1(snd_timer_instance_t *ti, - enum sndrv_timer_event event) +static void snd_timer_notify1(struct snd_timer_instance *ti, int event) { - snd_timer_t *timer; + struct snd_timer *timer; unsigned long flags; unsigned long resolution = 0; - snd_timer_instance_t *ts; + struct snd_timer_instance *ts; struct list_head *n; struct timespec tstamp; @@ -414,14 +413,14 @@ static void snd_timer_notify1(snd_timer_instance_t *ti, return; spin_lock_irqsave(&timer->lock, flags); list_for_each(n, &ti->slave_active_head) { - ts = list_entry(n, snd_timer_instance_t, active_list); + ts = list_entry(n, struct snd_timer_instance, active_list); if (ts->ccallback) ts->ccallback(ti, event + 100, &tstamp, resolution); } spin_unlock_irqrestore(&timer->lock, flags); } -static int snd_timer_start1(snd_timer_t *timer, snd_timer_instance_t *timeri, +static int snd_timer_start1(struct snd_timer *timer, struct snd_timer_instance *timeri, unsigned long sticks) { list_del(&timeri->active_list); @@ -442,7 +441,7 @@ static int snd_timer_start1(snd_timer_t *timer, snd_timer_instance_t *timeri, } } -static int snd_timer_start_slave(snd_timer_instance_t *timeri) +static int snd_timer_start_slave(struct snd_timer_instance *timeri) { unsigned long flags; @@ -458,9 +457,9 @@ static int snd_timer_start_slave(snd_timer_instance_t *timeri) /* * start the timer instance */ -int snd_timer_start(snd_timer_instance_t * timeri, unsigned int ticks) +int snd_timer_start(struct snd_timer_instance *timeri, unsigned int ticks) { - snd_timer_t *timer; + struct snd_timer *timer; int result = -EINVAL; unsigned long flags; @@ -483,10 +482,10 @@ int snd_timer_start(snd_timer_instance_t * timeri, unsigned int ticks) return result; } -static int _snd_timer_stop(snd_timer_instance_t * timeri, - int keep_flag, enum sndrv_timer_event event) +static int _snd_timer_stop(struct snd_timer_instance * timeri, + int keep_flag, int event) { - snd_timer_t *timer; + struct snd_timer *timer; unsigned long flags; snd_assert(timeri != NULL, return -ENXIO); @@ -532,9 +531,9 @@ static int _snd_timer_stop(snd_timer_instance_t * timeri, * * do not call this from the timer callback! */ -int snd_timer_stop(snd_timer_instance_t * timeri) +int snd_timer_stop(struct snd_timer_instance *timeri) { - snd_timer_t *timer; + struct snd_timer *timer; unsigned long flags; int err; @@ -552,9 +551,9 @@ int snd_timer_stop(snd_timer_instance_t * timeri) /* * start again.. the tick is kept. */ -int snd_timer_continue(snd_timer_instance_t * timeri) +int snd_timer_continue(struct snd_timer_instance *timeri) { - snd_timer_t *timer; + struct snd_timer *timer; int result = -EINVAL; unsigned long flags; @@ -578,7 +577,7 @@ int snd_timer_continue(snd_timer_instance_t * timeri) /* * pause.. remember the ticks left */ -int snd_timer_pause(snd_timer_instance_t * timeri) +int snd_timer_pause(struct snd_timer_instance * timeri) { return _snd_timer_stop(timeri, 0, SNDRV_TIMER_EVENT_PAUSE); } @@ -589,14 +588,14 @@ int snd_timer_pause(snd_timer_instance_t * timeri) * start pending instances and check the scheduling ticks. * when the scheduling ticks is changed set CHANGE flag to reprogram the timer. */ -static void snd_timer_reschedule(snd_timer_t * timer, unsigned long ticks_left) +static void snd_timer_reschedule(struct snd_timer * timer, unsigned long ticks_left) { - snd_timer_instance_t *ti; + struct snd_timer_instance *ti; unsigned long ticks = ~0UL; struct list_head *p; list_for_each(p, &timer->active_list_head) { - ti = list_entry(p, snd_timer_instance_t, active_list); + ti = list_entry(p, struct snd_timer_instance, active_list); if (ti->flags & SNDRV_TIMER_IFLG_START) { ti->flags &= ~SNDRV_TIMER_IFLG_START; ti->flags |= SNDRV_TIMER_IFLG_RUNNING; @@ -624,8 +623,8 @@ static void snd_timer_reschedule(snd_timer_t * timer, unsigned long ticks_left) */ static void snd_timer_tasklet(unsigned long arg) { - snd_timer_t *timer = (snd_timer_t *) arg; - snd_timer_instance_t *ti; + struct snd_timer *timer = (struct snd_timer *) arg; + struct snd_timer_instance *ti; struct list_head *p; unsigned long resolution, ticks; @@ -633,7 +632,7 @@ static void snd_timer_tasklet(unsigned long arg) /* now process all callbacks */ while (!list_empty(&timer->sack_list_head)) { p = timer->sack_list_head.next; /* get first item */ - ti = list_entry(p, snd_timer_instance_t, ack_list); + ti = list_entry(p, struct snd_timer_instance, ack_list); /* remove from ack_list and make empty */ list_del_init(p); @@ -658,17 +657,18 @@ static void snd_timer_tasklet(unsigned long arg) * ticks_left is usually equal to timer->sticks. * */ -void snd_timer_interrupt(snd_timer_t * timer, unsigned long ticks_left) +void snd_timer_interrupt(struct snd_timer * timer, unsigned long ticks_left) { - snd_timer_instance_t *ti, *ts; + struct snd_timer_instance *ti, *ts; unsigned long resolution, ticks; struct list_head *p, *q, *n, *ack_list_head; + unsigned long flags; int use_tasklet = 0; if (timer == NULL) return; - spin_lock(&timer->lock); + spin_lock_irqsave(&timer->lock, flags); /* remember the current resolution */ if (timer->hw.c_resolution) @@ -682,7 +682,7 @@ void snd_timer_interrupt(snd_timer_t * timer, unsigned long ticks_left) * is called. */ list_for_each_safe(p, n, &timer->active_list_head) { - ti = list_entry(p, snd_timer_instance_t, active_list); + ti = list_entry(p, struct snd_timer_instance, active_list); if (!(ti->flags & SNDRV_TIMER_IFLG_RUNNING)) continue; ti->pticks += ticks_left; @@ -708,7 +708,7 @@ void snd_timer_interrupt(snd_timer_t * timer, unsigned long ticks_left) if (list_empty(&ti->ack_list)) list_add_tail(&ti->ack_list, ack_list_head); list_for_each(q, &ti->slave_active_head) { - ts = list_entry(q, snd_timer_instance_t, active_list); + ts = list_entry(q, struct snd_timer_instance, active_list); ts->pticks = ti->pticks; ts->resolution = resolution; if (list_empty(&ts->ack_list)) @@ -735,7 +735,7 @@ void snd_timer_interrupt(snd_timer_t * timer, unsigned long ticks_left) /* now process all fast callbacks */ while (!list_empty(&timer->ack_list_head)) { p = timer->ack_list_head.next; /* get first item */ - ti = list_entry(p, snd_timer_instance_t, ack_list); + ti = list_entry(p, struct snd_timer_instance, ack_list); /* remove from ack_list and make empty */ list_del_init(p); @@ -753,7 +753,7 @@ void snd_timer_interrupt(snd_timer_t * timer, unsigned long ticks_left) /* do we have any slow callbacks? */ use_tasklet = !list_empty(&timer->sack_list_head); - spin_unlock(&timer->lock); + spin_unlock_irqrestore(&timer->lock, flags); if (use_tasklet) tasklet_hi_schedule(&timer->task_queue); @@ -763,12 +763,12 @@ void snd_timer_interrupt(snd_timer_t * timer, unsigned long ticks_left) */ -int snd_timer_new(snd_card_t *card, char *id, snd_timer_id_t *tid, - snd_timer_t **rtimer) +int snd_timer_new(struct snd_card *card, char *id, struct snd_timer_id *tid, + struct snd_timer **rtimer) { - snd_timer_t *timer; + struct snd_timer *timer; int err; - static snd_device_ops_t ops = { + static struct snd_device_ops ops = { .dev_free = snd_timer_dev_free, .dev_register = snd_timer_dev_register, .dev_unregister = snd_timer_dev_unregister @@ -778,8 +778,10 @@ int snd_timer_new(snd_card_t *card, char *id, snd_timer_id_t *tid, snd_assert(rtimer != NULL, return -EINVAL); *rtimer = NULL; timer = kzalloc(sizeof(*timer), GFP_KERNEL); - if (timer == NULL) + if (timer == NULL) { + snd_printk(KERN_ERR "timer: cannot allocate\n"); return -ENOMEM; + } timer->tmr_class = tid->dev_class; timer->card = card; timer->tmr_device = tid->device; @@ -806,7 +808,7 @@ int snd_timer_new(snd_card_t *card, char *id, snd_timer_id_t *tid, return 0; } -static int snd_timer_free(snd_timer_t *timer) +static int snd_timer_free(struct snd_timer *timer) { snd_assert(timer != NULL, return -ENXIO); if (timer->private_free) @@ -815,16 +817,16 @@ static int snd_timer_free(snd_timer_t *timer) return 0; } -static int snd_timer_dev_free(snd_device_t *device) +static int snd_timer_dev_free(struct snd_device *device) { - snd_timer_t *timer = device->device_data; + struct snd_timer *timer = device->device_data; return snd_timer_free(timer); } -static int snd_timer_dev_register(snd_device_t *dev) +static int snd_timer_dev_register(struct snd_device *dev) { - snd_timer_t *timer = dev->device_data; - snd_timer_t *timer1; + struct snd_timer *timer = dev->device_data; + struct snd_timer *timer1; struct list_head *p; snd_assert(timer != NULL && timer->hw.start != NULL && @@ -835,7 +837,7 @@ static int snd_timer_dev_register(snd_device_t *dev) down(®ister_mutex); list_for_each(p, &snd_timer_list) { - timer1 = list_entry(p, snd_timer_t, device_list); + timer1 = list_entry(p, struct snd_timer, device_list); if (timer1->tmr_class > timer->tmr_class) break; if (timer1->tmr_class < timer->tmr_class) @@ -863,10 +865,10 @@ static int snd_timer_dev_register(snd_device_t *dev) return 0; } -static int snd_timer_unregister(snd_timer_t *timer) +static int snd_timer_unregister(struct snd_timer *timer) { struct list_head *p, *n; - snd_timer_instance_t *ti; + struct snd_timer_instance *ti; snd_assert(timer != NULL, return -ENXIO); down(®ister_mutex); @@ -874,7 +876,7 @@ static int snd_timer_unregister(snd_timer_t *timer) snd_printk(KERN_WARNING "timer 0x%lx is busy?\n", (long)timer); list_for_each_safe(p, n, &timer->open_list_head) { list_del_init(p); - ti = list_entry(p, snd_timer_instance_t, open_list); + ti = list_entry(p, struct snd_timer_instance, open_list); ti->timer = NULL; } } @@ -883,18 +885,17 @@ static int snd_timer_unregister(snd_timer_t *timer) return snd_timer_free(timer); } -static int snd_timer_dev_unregister(snd_device_t *device) +static int snd_timer_dev_unregister(struct snd_device *device) { - snd_timer_t *timer = device->device_data; + struct snd_timer *timer = device->device_data; return snd_timer_unregister(timer); } -void snd_timer_notify(snd_timer_t *timer, enum sndrv_timer_event event, - struct timespec *tstamp) +void snd_timer_notify(struct snd_timer *timer, int event, struct timespec *tstamp) { unsigned long flags; unsigned long resolution = 0; - snd_timer_instance_t *ti, *ts; + struct snd_timer_instance *ti, *ts; struct list_head *p, *n; if (! (timer->hw.flags & SNDRV_TIMER_HW_SLAVE)) @@ -911,11 +912,11 @@ void snd_timer_notify(snd_timer_t *timer, enum sndrv_timer_event event, resolution = timer->hw.resolution; } list_for_each(p, &timer->active_list_head) { - ti = list_entry(p, snd_timer_instance_t, active_list); + ti = list_entry(p, struct snd_timer_instance, active_list); if (ti->ccallback) ti->ccallback(ti, event, tstamp, resolution); list_for_each(n, &ti->slave_active_head) { - ts = list_entry(n, snd_timer_instance_t, active_list); + ts = list_entry(n, struct snd_timer_instance, active_list); if (ts->ccallback) ts->ccallback(ts, event, tstamp, resolution); } @@ -926,9 +927,9 @@ void snd_timer_notify(snd_timer_t *timer, enum sndrv_timer_event event, /* * exported functions for global timers */ -int snd_timer_global_new(char *id, int device, snd_timer_t **rtimer) +int snd_timer_global_new(char *id, int device, struct snd_timer **rtimer) { - snd_timer_id_t tid; + struct snd_timer_id tid; tid.dev_class = SNDRV_TIMER_CLASS_GLOBAL; tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE; @@ -938,21 +939,21 @@ int snd_timer_global_new(char *id, int device, snd_timer_t **rtimer) return snd_timer_new(NULL, id, &tid, rtimer); } -int snd_timer_global_free(snd_timer_t *timer) +int snd_timer_global_free(struct snd_timer *timer) { return snd_timer_free(timer); } -int snd_timer_global_register(snd_timer_t *timer) +int snd_timer_global_register(struct snd_timer *timer) { - snd_device_t dev; + struct snd_device dev; memset(&dev, 0, sizeof(dev)); dev.device_data = timer; return snd_timer_dev_register(&dev); } -int snd_timer_global_unregister(snd_timer_t *timer) +int snd_timer_global_unregister(struct snd_timer *timer) { return snd_timer_unregister(timer); } @@ -971,7 +972,7 @@ struct snd_timer_system_private { static void snd_timer_s_function(unsigned long data) { - snd_timer_t *timer = (snd_timer_t *)data; + struct snd_timer *timer = (struct snd_timer *)data; struct snd_timer_system_private *priv = timer->private_data; unsigned long jiff = jiffies; if (time_after(jiff, priv->last_expires)) @@ -979,7 +980,7 @@ static void snd_timer_s_function(unsigned long data) snd_timer_interrupt(timer, (long)jiff - (long)priv->last_jiffies); } -static int snd_timer_s_start(snd_timer_t * timer) +static int snd_timer_s_start(struct snd_timer * timer) { struct snd_timer_system_private *priv; unsigned long njiff; @@ -998,7 +999,7 @@ static int snd_timer_s_start(snd_timer_t * timer) return 0; } -static int snd_timer_s_stop(snd_timer_t * timer) +static int snd_timer_s_stop(struct snd_timer * timer) { struct snd_timer_system_private *priv; unsigned long jiff; @@ -1013,7 +1014,7 @@ static int snd_timer_s_stop(snd_timer_t * timer) return 0; } -static struct _snd_timer_hardware snd_timer_system = +static struct snd_timer_hardware snd_timer_system = { .flags = SNDRV_TIMER_HW_FIRST | SNDRV_TIMER_HW_TASKLET, .resolution = 1000000000L / HZ, @@ -1022,14 +1023,14 @@ static struct _snd_timer_hardware snd_timer_system = .stop = snd_timer_s_stop }; -static void snd_timer_free_system(snd_timer_t *timer) +static void snd_timer_free_system(struct snd_timer *timer) { kfree(timer->private_data); } static int snd_timer_register_system(void) { - snd_timer_t *timer; + struct snd_timer *timer; struct snd_timer_system_private *priv; int err; @@ -1051,21 +1052,22 @@ static int snd_timer_register_system(void) return snd_timer_global_register(timer); } +#ifdef CONFIG_PROC_FS /* * Info interface */ -static void snd_timer_proc_read(snd_info_entry_t *entry, - snd_info_buffer_t * buffer) +static void snd_timer_proc_read(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) { unsigned long flags; - snd_timer_t *timer; - snd_timer_instance_t *ti; + struct snd_timer *timer; + struct snd_timer_instance *ti; struct list_head *p, *q; down(®ister_mutex); list_for_each(p, &snd_timer_list) { - timer = list_entry(p, snd_timer_t, device_list); + timer = list_entry(p, struct snd_timer, device_list); switch (timer->tmr_class) { case SNDRV_TIMER_CLASS_GLOBAL: snd_iprintf(buffer, "G%i: ", timer->tmr_device); @@ -1094,7 +1096,7 @@ static void snd_timer_proc_read(snd_info_entry_t *entry, snd_iprintf(buffer, "\n"); spin_lock_irqsave(&timer->lock, flags); list_for_each(q, &timer->open_list_head) { - ti = list_entry(q, snd_timer_instance_t, open_list); + ti = list_entry(q, struct snd_timer_instance, open_list); snd_iprintf(buffer, " Client %s : %s\n", ti->owner ? ti->owner : "unknown", ti->flags & (SNDRV_TIMER_IFLG_START | @@ -1106,16 +1108,43 @@ static void snd_timer_proc_read(snd_info_entry_t *entry, up(®ister_mutex); } +static struct snd_info_entry *snd_timer_proc_entry = NULL; + +static void __init snd_timer_proc_init(void) +{ + struct snd_info_entry *entry; + + entry = snd_info_create_module_entry(THIS_MODULE, "timers", NULL); + if (entry != NULL) { + entry->c.text.read_size = SNDRV_TIMER_DEVICES * 128; + entry->c.text.read = snd_timer_proc_read; + if (snd_info_register(entry) < 0) { + snd_info_free_entry(entry); + entry = NULL; + } + } + snd_timer_proc_entry = entry; +} + +static void __exit snd_timer_proc_done(void) +{ + snd_info_unregister(snd_timer_proc_entry); +} +#else /* !CONFIG_PROC_FS */ +#define snd_timer_proc_init() +#define snd_timer_proc_done() +#endif + /* * USER SPACE interface */ -static void snd_timer_user_interrupt(snd_timer_instance_t *timeri, +static void snd_timer_user_interrupt(struct snd_timer_instance *timeri, unsigned long resolution, unsigned long ticks) { - snd_timer_user_t *tu = timeri->callback_data; - snd_timer_read_t *r; + struct snd_timer_user *tu = timeri->callback_data; + struct snd_timer_read *r; int prev; spin_lock(&tu->qlock); @@ -1142,8 +1171,8 @@ static void snd_timer_user_interrupt(snd_timer_instance_t *timeri, wake_up(&tu->qchange_sleep); } -static void snd_timer_user_append_to_tqueue(snd_timer_user_t *tu, - snd_timer_tread_t *tread) +static void snd_timer_user_append_to_tqueue(struct snd_timer_user *tu, + struct snd_timer_tread *tread) { if (tu->qused >= tu->queue_size) { tu->overrun++; @@ -1154,13 +1183,13 @@ static void snd_timer_user_append_to_tqueue(snd_timer_user_t *tu, } } -static void snd_timer_user_ccallback(snd_timer_instance_t *timeri, - enum sndrv_timer_event event, +static void snd_timer_user_ccallback(struct snd_timer_instance *timeri, + int event, struct timespec *tstamp, unsigned long resolution) { - snd_timer_user_t *tu = timeri->callback_data; - snd_timer_tread_t r1; + struct snd_timer_user *tu = timeri->callback_data; + struct snd_timer_tread r1; if (event >= SNDRV_TIMER_EVENT_START && event <= SNDRV_TIMER_EVENT_PAUSE) @@ -1177,12 +1206,12 @@ static void snd_timer_user_ccallback(snd_timer_instance_t *timeri, wake_up(&tu->qchange_sleep); } -static void snd_timer_user_tinterrupt(snd_timer_instance_t *timeri, +static void snd_timer_user_tinterrupt(struct snd_timer_instance *timeri, unsigned long resolution, unsigned long ticks) { - snd_timer_user_t *tu = timeri->callback_data; - snd_timer_tread_t *r, r1; + struct snd_timer_user *tu = timeri->callback_data; + struct snd_timer_tread *r, r1; struct timespec tstamp; int prev, append = 0; @@ -1233,7 +1262,7 @@ static void snd_timer_user_tinterrupt(snd_timer_instance_t *timeri, static int snd_timer_user_open(struct inode *inode, struct file *file) { - snd_timer_user_t *tu; + struct snd_timer_user *tu; tu = kzalloc(sizeof(*tu), GFP_KERNEL); if (tu == NULL) @@ -1243,7 +1272,7 @@ static int snd_timer_user_open(struct inode *inode, struct file *file) init_MUTEX(&tu->tread_sem); tu->ticks = 1; tu->queue_size = 128; - tu->queue = kmalloc(tu->queue_size * sizeof(snd_timer_read_t), + tu->queue = kmalloc(tu->queue_size * sizeof(struct snd_timer_read), GFP_KERNEL); if (tu->queue == NULL) { kfree(tu); @@ -1255,7 +1284,7 @@ static int snd_timer_user_open(struct inode *inode, struct file *file) static int snd_timer_user_release(struct inode *inode, struct file *file) { - snd_timer_user_t *tu; + struct snd_timer_user *tu; if (file->private_data) { tu = file->private_data; @@ -1270,7 +1299,7 @@ static int snd_timer_user_release(struct inode *inode, struct file *file) return 0; } -static void snd_timer_user_zero_id(snd_timer_id_t *id) +static void snd_timer_user_zero_id(struct snd_timer_id *id) { id->dev_class = SNDRV_TIMER_CLASS_NONE; id->dev_sclass = SNDRV_TIMER_SCLASS_NONE; @@ -1279,7 +1308,7 @@ static void snd_timer_user_zero_id(snd_timer_id_t *id) id->subdevice = -1; } -static void snd_timer_user_copy_id(snd_timer_id_t *id, snd_timer_t *timer) +static void snd_timer_user_copy_id(struct snd_timer_id *id, struct snd_timer *timer) { id->dev_class = timer->tmr_class; id->dev_sclass = SNDRV_TIMER_SCLASS_NONE; @@ -1288,10 +1317,10 @@ static void snd_timer_user_copy_id(snd_timer_id_t *id, snd_timer_t *timer) id->subdevice = timer->tmr_subdevice; } -static int snd_timer_user_next_device(snd_timer_id_t __user *_tid) +static int snd_timer_user_next_device(struct snd_timer_id __user *_tid) { - snd_timer_id_t id; - snd_timer_t *timer; + struct snd_timer_id id; + struct snd_timer *timer; struct list_head *p; if (copy_from_user(&id, _tid, sizeof(id))) @@ -1302,7 +1331,7 @@ static int snd_timer_user_next_device(snd_timer_id_t __user *_tid) snd_timer_user_zero_id(&id); else { timer = list_entry(snd_timer_list.next, - snd_timer_t, device_list); + struct snd_timer, device_list); snd_timer_user_copy_id(&id, timer); } } else { @@ -1310,7 +1339,7 @@ static int snd_timer_user_next_device(snd_timer_id_t __user *_tid) case SNDRV_TIMER_CLASS_GLOBAL: id.device = id.device < 0 ? 0 : id.device + 1; list_for_each(p, &snd_timer_list) { - timer = list_entry(p, snd_timer_t, device_list); + timer = list_entry(p, struct snd_timer, device_list); if (timer->tmr_class > SNDRV_TIMER_CLASS_GLOBAL) { snd_timer_user_copy_id(&id, timer); break; @@ -1343,7 +1372,7 @@ static int snd_timer_user_next_device(snd_timer_id_t __user *_tid) } } list_for_each(p, &snd_timer_list) { - timer = list_entry(p, snd_timer_t, device_list); + timer = list_entry(p, struct snd_timer, device_list); if (timer->tmr_class > id.dev_class) { snd_timer_user_copy_id(&id, timer); break; @@ -1385,11 +1414,11 @@ static int snd_timer_user_next_device(snd_timer_id_t __user *_tid) } static int snd_timer_user_ginfo(struct file *file, - snd_timer_ginfo_t __user *_ginfo) + struct snd_timer_ginfo __user *_ginfo) { - snd_timer_ginfo_t *ginfo; - snd_timer_id_t tid; - snd_timer_t *t; + struct snd_timer_ginfo *ginfo; + struct snd_timer_id tid; + struct snd_timer *t; struct list_head *p; int err = 0; @@ -1430,10 +1459,10 @@ static int snd_timer_user_ginfo(struct file *file, } static int snd_timer_user_gparams(struct file *file, - snd_timer_gparams_t __user *_gparams) + struct snd_timer_gparams __user *_gparams) { - snd_timer_gparams_t gparams; - snd_timer_t *t; + struct snd_timer_gparams gparams; + struct snd_timer *t; int err; if (copy_from_user(&gparams, _gparams, sizeof(gparams))) @@ -1459,11 +1488,11 @@ _error: } static int snd_timer_user_gstatus(struct file *file, - snd_timer_gstatus_t __user *_gstatus) + struct snd_timer_gstatus __user *_gstatus) { - snd_timer_gstatus_t gstatus; - snd_timer_id_t tid; - snd_timer_t *t; + struct snd_timer_gstatus gstatus; + struct snd_timer_id tid; + struct snd_timer *t; int err = 0; if (copy_from_user(&gstatus, _gstatus, sizeof(gstatus))) @@ -1495,10 +1524,10 @@ static int snd_timer_user_gstatus(struct file *file, } static int snd_timer_user_tselect(struct file *file, - snd_timer_select_t __user *_tselect) + struct snd_timer_select __user *_tselect) { - snd_timer_user_t *tu; - snd_timer_select_t tselect; + struct snd_timer_user *tu; + struct snd_timer_select tselect; char str[32]; int err = 0; @@ -1524,12 +1553,12 @@ static int snd_timer_user_tselect(struct file *file, kfree(tu->tqueue); tu->tqueue = NULL; if (tu->tread) { - tu->tqueue = kmalloc(tu->queue_size * sizeof(snd_timer_tread_t), + tu->tqueue = kmalloc(tu->queue_size * sizeof(struct snd_timer_tread), GFP_KERNEL); if (tu->tqueue == NULL) err = -ENOMEM; } else { - tu->queue = kmalloc(tu->queue_size * sizeof(snd_timer_read_t), + tu->queue = kmalloc(tu->queue_size * sizeof(struct snd_timer_read), GFP_KERNEL); if (tu->queue == NULL) err = -ENOMEM; @@ -1552,11 +1581,11 @@ static int snd_timer_user_tselect(struct file *file, } static int snd_timer_user_info(struct file *file, - snd_timer_info_t __user *_info) + struct snd_timer_info __user *_info) { - snd_timer_user_t *tu; - snd_timer_info_t *info; - snd_timer_t *t; + struct snd_timer_user *tu; + struct snd_timer_info *info; + struct snd_timer *t; int err = 0; tu = file->private_data; @@ -1580,13 +1609,13 @@ static int snd_timer_user_info(struct file *file, } static int snd_timer_user_params(struct file *file, - snd_timer_params_t __user *_params) + struct snd_timer_params __user *_params) { - snd_timer_user_t *tu; - snd_timer_params_t params; - snd_timer_t *t; - snd_timer_read_t *tr; - snd_timer_tread_t *ttr; + struct snd_timer_user *tu; + struct snd_timer_params params; + struct snd_timer *t; + struct snd_timer_read *tr; + struct snd_timer_tread *ttr; int err; tu = file->private_data; @@ -1656,14 +1685,14 @@ static int snd_timer_user_params(struct file *file, tu->qhead = tu->qtail = tu->qused = 0; if (tu->timeri->flags & SNDRV_TIMER_IFLG_EARLY_EVENT) { if (tu->tread) { - snd_timer_tread_t tread; + struct snd_timer_tread tread; tread.event = SNDRV_TIMER_EVENT_EARLY; tread.tstamp.tv_sec = 0; tread.tstamp.tv_nsec = 0; tread.val = 0; snd_timer_user_append_to_tqueue(tu, &tread); } else { - snd_timer_read_t *r = &tu->queue[0]; + struct snd_timer_read *r = &tu->queue[0]; r->resolution = 0; r->ticks = 0; tu->qused++; @@ -1680,10 +1709,10 @@ static int snd_timer_user_params(struct file *file, } static int snd_timer_user_status(struct file *file, - snd_timer_status_t __user *_status) + struct snd_timer_status __user *_status) { - snd_timer_user_t *tu; - snd_timer_status_t status; + struct snd_timer_user *tu; + struct snd_timer_status status; tu = file->private_data; snd_assert(tu->timeri != NULL, return -ENXIO); @@ -1703,7 +1732,7 @@ static int snd_timer_user_status(struct file *file, static int snd_timer_user_start(struct file *file) { int err; - snd_timer_user_t *tu; + struct snd_timer_user *tu; tu = file->private_data; snd_assert(tu->timeri != NULL, return -ENXIO); @@ -1716,7 +1745,7 @@ static int snd_timer_user_start(struct file *file) static int snd_timer_user_stop(struct file *file) { int err; - snd_timer_user_t *tu; + struct snd_timer_user *tu; tu = file->private_data; snd_assert(tu->timeri != NULL, return -ENXIO); @@ -1726,7 +1755,7 @@ static int snd_timer_user_stop(struct file *file) static int snd_timer_user_continue(struct file *file) { int err; - snd_timer_user_t *tu; + struct snd_timer_user *tu; tu = file->private_data; snd_assert(tu->timeri != NULL, return -ENXIO); @@ -1737,7 +1766,7 @@ static int snd_timer_user_continue(struct file *file) static int snd_timer_user_pause(struct file *file) { int err; - snd_timer_user_t *tu; + struct snd_timer_user *tu; tu = file->private_data; snd_assert(tu->timeri != NULL, return -ENXIO); @@ -1754,7 +1783,7 @@ enum { static long snd_timer_user_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - snd_timer_user_t *tu; + struct snd_timer_user *tu; void __user *argp = (void __user *)arg; int __user *p = argp; @@ -1813,7 +1842,7 @@ static long snd_timer_user_ioctl(struct file *file, unsigned int cmd, static int snd_timer_user_fasync(int fd, struct file * file, int on) { - snd_timer_user_t *tu; + struct snd_timer_user *tu; int err; tu = file->private_data; @@ -1826,12 +1855,12 @@ static int snd_timer_user_fasync(int fd, struct file * file, int on) static ssize_t snd_timer_user_read(struct file *file, char __user *buffer, size_t count, loff_t *offset) { - snd_timer_user_t *tu; + struct snd_timer_user *tu; long result = 0, unit; int err = 0; tu = file->private_data; - unit = tu->tread ? sizeof(snd_timer_tread_t) : sizeof(snd_timer_read_t); + unit = tu->tread ? sizeof(struct snd_timer_tread) : sizeof(struct snd_timer_read); spin_lock_irq(&tu->qlock); while ((long)count - result >= unit) { while (!tu->qused) { @@ -1864,13 +1893,13 @@ static ssize_t snd_timer_user_read(struct file *file, char __user *buffer, if (tu->tread) { if (copy_to_user(buffer, &tu->tqueue[tu->qhead++], - sizeof(snd_timer_tread_t))) { + sizeof(struct snd_timer_tread))) { err = -EFAULT; goto _error; } } else { if (copy_to_user(buffer, &tu->queue[tu->qhead++], - sizeof(snd_timer_read_t))) { + sizeof(struct snd_timer_read))) { err = -EFAULT; goto _error; } @@ -1892,7 +1921,7 @@ static ssize_t snd_timer_user_read(struct file *file, char __user *buffer, static unsigned int snd_timer_user_poll(struct file *file, poll_table * wait) { unsigned int mask; - snd_timer_user_t *tu; + struct snd_timer_user *tu; tu = file->private_data; @@ -1923,44 +1952,27 @@ static struct file_operations snd_timer_f_ops = .fasync = snd_timer_user_fasync, }; -static snd_minor_t snd_timer_reg = -{ - .comment = "timer", - .f_ops = &snd_timer_f_ops, -}; - /* * ENTRY functions */ -static snd_info_entry_t *snd_timer_proc_entry = NULL; - static int __init alsa_timer_init(void) { int err; - snd_info_entry_t *entry; #ifdef SNDRV_OSS_INFO_DEV_TIMERS snd_oss_info_register(SNDRV_OSS_INFO_DEV_TIMERS, SNDRV_CARDS - 1, "system timer"); #endif - entry = snd_info_create_module_entry(THIS_MODULE, "timers", NULL); - if (entry != NULL) { - entry->c.text.read_size = SNDRV_TIMER_DEVICES * 128; - entry->c.text.read = snd_timer_proc_read; - if (snd_info_register(entry) < 0) { - snd_info_free_entry(entry); - entry = NULL; - } - } - snd_timer_proc_entry = entry; + if ((err = snd_timer_register_system()) < 0) snd_printk(KERN_ERR "unable to register system timer (%i)\n", err); - if ((err = snd_register_device(SNDRV_DEVICE_TYPE_TIMER, - NULL, 0, &snd_timer_reg, "timer"))<0) + if ((err = snd_register_device(SNDRV_DEVICE_TYPE_TIMER, NULL, 0, + &snd_timer_f_ops, NULL, "timer")) < 0) snd_printk(KERN_ERR "unable to register timer device (%i)\n", err); + snd_timer_proc_init(); return 0; } @@ -1971,13 +1983,10 @@ static void __exit alsa_timer_exit(void) snd_unregister_device(SNDRV_DEVICE_TYPE_TIMER, NULL, 0); /* unregister the system timer */ list_for_each_safe(p, n, &snd_timer_list) { - snd_timer_t *timer = list_entry(p, snd_timer_t, device_list); + struct snd_timer *timer = list_entry(p, struct snd_timer, device_list); snd_timer_unregister(timer); } - if (snd_timer_proc_entry) { - snd_info_unregister(snd_timer_proc_entry); - snd_timer_proc_entry = NULL; - } + snd_timer_proc_done(); #ifdef SNDRV_OSS_INFO_DEV_TIMERS snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_TIMERS, SNDRV_CARDS - 1); #endif |