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@@ -55,7 +55,7 @@ MODULE_PARM_DESC(timer_limit, "Maximum global timers in system.");
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typedef struct {
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snd_timer_instance_t *timeri;
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- int tread; /* enhanced read with timestamps and events */
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+ int tread; /* enhanced read with timestamps and events */
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unsigned long ticks;
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unsigned long overrun;
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int qhead;
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@@ -95,7 +95,8 @@ static void snd_timer_reschedule(snd_timer_t * timer, unsigned long ticks_left);
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* create a timer instance with the given owner string.
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* when timer is not NULL, increments the module counter
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*/
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-static snd_timer_instance_t *snd_timer_instance_new(char *owner, snd_timer_t *timer)
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+static snd_timer_instance_t *snd_timer_instance_new(char *owner,
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+ snd_timer_t *timer)
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{
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snd_timer_instance_t *timeri;
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timeri = kzalloc(sizeof(*timeri), GFP_KERNEL);
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@@ -113,7 +114,7 @@ static snd_timer_instance_t *snd_timer_instance_new(char *owner, snd_timer_t *ti
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INIT_LIST_HEAD(&timeri->slave_active_head);
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timeri->timer = timer;
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- if (timer && timer->card && !try_module_get(timer->card->module)) {
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+ if (timer && !try_module_get(timer->module)) {
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kfree(timeri->owner);
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kfree(timeri);
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return NULL;
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@@ -131,7 +132,7 @@ static snd_timer_t *snd_timer_find(snd_timer_id_t *tid)
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struct list_head *p;
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list_for_each(p, &snd_timer_list) {
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- timer = (snd_timer_t *)list_entry(p, snd_timer_t, device_list);
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+ timer = list_entry(p, snd_timer_t, device_list);
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if (timer->tmr_class != tid->dev_class)
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continue;
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@@ -186,13 +187,14 @@ static void snd_timer_check_slave(snd_timer_instance_t *slave)
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/* FIXME: it's really dumb to look up all entries.. */
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list_for_each(p, &snd_timer_list) {
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- timer = (snd_timer_t *)list_entry(p, snd_timer_t, device_list);
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+ timer = list_entry(p, snd_timer_t, device_list);
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list_for_each(q, &timer->open_list_head) {
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- master = (snd_timer_instance_t *)list_entry(q, snd_timer_instance_t, open_list);
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+ master = list_entry(q, snd_timer_instance_t, open_list);
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if (slave->slave_class == master->slave_class &&
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slave->slave_id == master->slave_id) {
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list_del(&slave->open_list);
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- list_add_tail(&slave->open_list, &master->slave_list_head);
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+ list_add_tail(&slave->open_list,
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+ &master->slave_list_head);
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spin_lock_irq(&slave_active_lock);
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slave->master = master;
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slave->timer = master->timer;
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@@ -216,7 +218,7 @@ static void snd_timer_check_master(snd_timer_instance_t *master)
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/* check all pending slaves */
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list_for_each_safe(p, n, &snd_timer_slave_list) {
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- slave = (snd_timer_instance_t *)list_entry(p, snd_timer_instance_t, open_list);
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+ slave = list_entry(p, snd_timer_instance_t, open_list);
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if (slave->slave_class == master->slave_class &&
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slave->slave_id == master->slave_id) {
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list_del(p);
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@@ -225,7 +227,8 @@ static void snd_timer_check_master(snd_timer_instance_t *master)
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slave->master = master;
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slave->timer = master->timer;
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if (slave->flags & SNDRV_TIMER_IFLG_RUNNING)
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- list_add_tail(&slave->active_list, &master->slave_active_head);
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+ list_add_tail(&slave->active_list,
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+ &master->slave_active_head);
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spin_unlock_irq(&slave_active_lock);
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}
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}
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@@ -241,7 +244,7 @@ int snd_timer_open(snd_timer_instance_t **ti,
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{
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snd_timer_t *timer;
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snd_timer_instance_t *timeri = NULL;
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-
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+
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if (tid->dev_class == SNDRV_TIMER_CLASS_SLAVE) {
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/* open a slave instance */
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if (tid->dev_sclass <= SNDRV_TIMER_SCLASS_NONE ||
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@@ -251,6 +254,10 @@ int snd_timer_open(snd_timer_instance_t **ti,
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}
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down(®ister_mutex);
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timeri = snd_timer_instance_new(owner, NULL);
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+ if (!timeri) {
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+ up(®ister_mutex);
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+ return -ENOMEM;
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+ }
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timeri->slave_class = tid->dev_sclass;
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timeri->slave_id = tid->device;
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timeri->flags |= SNDRV_TIMER_IFLG_SLAVE;
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@@ -272,33 +279,36 @@ int snd_timer_open(snd_timer_instance_t **ti,
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timer = snd_timer_find(tid);
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}
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#endif
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- if (timer) {
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- if (!list_empty(&timer->open_list_head)) {
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- timeri = (snd_timer_instance_t *)list_entry(timer->open_list_head.next, snd_timer_instance_t, open_list);
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- if (timeri->flags & SNDRV_TIMER_IFLG_EXCLUSIVE) {
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- up(®ister_mutex);
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- return -EBUSY;
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- }
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- }
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- timeri = snd_timer_instance_new(owner, timer);
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- if (timeri) {
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- timeri->slave_class = tid->dev_sclass;
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- timeri->slave_id = slave_id;
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- if (list_empty(&timer->open_list_head) && timer->hw.open)
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- timer->hw.open(timer);
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- list_add_tail(&timeri->open_list, &timer->open_list_head);
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- snd_timer_check_master(timeri);
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- }
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- } else {
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+ if (!timer) {
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up(®ister_mutex);
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return -ENODEV;
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}
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+ if (!list_empty(&timer->open_list_head)) {
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+ timeri = list_entry(timer->open_list_head.next,
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+ snd_timer_instance_t, open_list);
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+ if (timeri->flags & SNDRV_TIMER_IFLG_EXCLUSIVE) {
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+ up(®ister_mutex);
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+ return -EBUSY;
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+ }
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+ }
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+ timeri = snd_timer_instance_new(owner, timer);
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+ if (!timeri) {
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+ up(®ister_mutex);
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+ return -ENOMEM;
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+ }
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+ timeri->slave_class = tid->dev_sclass;
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+ timeri->slave_id = slave_id;
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+ if (list_empty(&timer->open_list_head) && timer->hw.open)
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+ timer->hw.open(timer);
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+ list_add_tail(&timeri->open_list, &timer->open_list_head);
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+ snd_timer_check_master(timeri);
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up(®ister_mutex);
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*ti = timeri;
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return 0;
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}
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-static int _snd_timer_stop(snd_timer_instance_t * timeri, int keep_flag, enum sndrv_timer_event event);
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+static int _snd_timer_stop(snd_timer_instance_t * timeri,
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+ int keep_flag, enum sndrv_timer_event event);
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/*
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* close a timer instance
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@@ -338,11 +348,12 @@ int snd_timer_close(snd_timer_instance_t * timeri)
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spin_unlock_irq(&timer->lock);
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down(®ister_mutex);
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list_del(&timeri->open_list);
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- if (timer && list_empty(&timer->open_list_head) && timer->hw.close)
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+ if (timer && list_empty(&timer->open_list_head) &&
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+ timer->hw.close)
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timer->hw.close(timer);
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/* remove slave links */
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list_for_each_safe(p, n, &timeri->slave_list_head) {
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- slave = (snd_timer_instance_t *)list_entry(p, snd_timer_instance_t, open_list);
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+ slave = list_entry(p, snd_timer_instance_t, open_list);
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spin_lock_irq(&slave_active_lock);
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_snd_timer_stop(slave, 1, SNDRV_TIMER_EVENT_RESOLUTION);
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list_del(p);
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@@ -357,8 +368,8 @@ int snd_timer_close(snd_timer_instance_t * timeri)
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timeri->private_free(timeri);
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kfree(timeri->owner);
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kfree(timeri);
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- if (timer && timer->card)
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- module_put(timer->card->module);
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+ if (timer)
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+ module_put(timer->module);
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return 0;
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}
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@@ -376,7 +387,8 @@ unsigned long snd_timer_resolution(snd_timer_instance_t * timeri)
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return 0;
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}
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-static void snd_timer_notify1(snd_timer_instance_t *ti, enum sndrv_timer_event event)
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+static void snd_timer_notify1(snd_timer_instance_t *ti,
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+ enum sndrv_timer_event event)
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{
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snd_timer_t *timer;
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unsigned long flags;
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@@ -385,9 +397,11 @@ static void snd_timer_notify1(snd_timer_instance_t *ti, enum sndrv_timer_event e
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struct list_head *n;
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struct timespec tstamp;
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- snd_timestamp_now(&tstamp, 1);
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- snd_assert(event >= SNDRV_TIMER_EVENT_START && event <= SNDRV_TIMER_EVENT_PAUSE, return);
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- if (event == SNDRV_TIMER_EVENT_START || event == SNDRV_TIMER_EVENT_CONTINUE)
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+ getnstimeofday(&tstamp);
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+ snd_assert(event >= SNDRV_TIMER_EVENT_START &&
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+ event <= SNDRV_TIMER_EVENT_PAUSE, return);
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+ if (event == SNDRV_TIMER_EVENT_START ||
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+ event == SNDRV_TIMER_EVENT_CONTINUE)
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resolution = snd_timer_resolution(ti);
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if (ti->ccallback)
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ti->ccallback(ti, SNDRV_TIMER_EVENT_START, &tstamp, resolution);
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@@ -400,14 +414,15 @@ static void snd_timer_notify1(snd_timer_instance_t *ti, enum sndrv_timer_event e
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return;
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spin_lock_irqsave(&timer->lock, flags);
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list_for_each(n, &ti->slave_active_head) {
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- ts = (snd_timer_instance_t *)list_entry(n, snd_timer_instance_t, active_list);
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+ ts = list_entry(n, snd_timer_instance_t, active_list);
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if (ts->ccallback)
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ts->ccallback(ti, event + 100, &tstamp, resolution);
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}
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spin_unlock_irqrestore(&timer->lock, flags);
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}
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-static int snd_timer_start1(snd_timer_t *timer, snd_timer_instance_t *timeri, unsigned long sticks)
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+static int snd_timer_start1(snd_timer_t *timer, snd_timer_instance_t *timeri,
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+ unsigned long sticks)
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{
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list_del(&timeri->active_list);
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list_add_tail(&timeri->active_list, &timer->active_list_head);
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@@ -434,14 +449,15 @@ static int snd_timer_start_slave(snd_timer_instance_t *timeri)
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spin_lock_irqsave(&slave_active_lock, flags);
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timeri->flags |= SNDRV_TIMER_IFLG_RUNNING;
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if (timeri->master)
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- list_add_tail(&timeri->active_list, &timeri->master->slave_active_head);
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+ list_add_tail(&timeri->active_list,
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+ &timeri->master->slave_active_head);
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spin_unlock_irqrestore(&slave_active_lock, flags);
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return 1; /* delayed start */
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}
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/*
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* start the timer instance
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- */
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+ */
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int snd_timer_start(snd_timer_instance_t * timeri, unsigned int ticks)
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{
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snd_timer_t *timer;
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@@ -467,7 +483,8 @@ int snd_timer_start(snd_timer_instance_t * timeri, unsigned int ticks)
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return result;
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}
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-static int _snd_timer_stop(snd_timer_instance_t * timeri, int keep_flag, enum sndrv_timer_event event)
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+static int _snd_timer_stop(snd_timer_instance_t * timeri,
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+ int keep_flag, enum sndrv_timer_event event)
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{
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snd_timer_t *timer;
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unsigned long flags;
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@@ -501,7 +518,8 @@ static int _snd_timer_stop(snd_timer_instance_t * timeri, int keep_flag, enum sn
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}
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}
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if (!keep_flag)
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- timeri->flags &= ~(SNDRV_TIMER_IFLG_RUNNING|SNDRV_TIMER_IFLG_START);
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+ timeri->flags &=
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+ ~(SNDRV_TIMER_IFLG_RUNNING | SNDRV_TIMER_IFLG_START);
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spin_unlock_irqrestore(&timer->lock, flags);
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__end:
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if (event != SNDRV_TIMER_EVENT_RESOLUTION)
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@@ -578,7 +596,7 @@ static void snd_timer_reschedule(snd_timer_t * timer, unsigned long ticks_left)
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struct list_head *p;
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list_for_each(p, &timer->active_list_head) {
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- ti = (snd_timer_instance_t *)list_entry(p, snd_timer_instance_t, active_list);
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+ ti = list_entry(p, snd_timer_instance_t, active_list);
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if (ti->flags & SNDRV_TIMER_IFLG_START) {
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ti->flags &= ~SNDRV_TIMER_IFLG_START;
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ti->flags |= SNDRV_TIMER_IFLG_RUNNING;
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@@ -615,11 +633,11 @@ static void snd_timer_tasklet(unsigned long arg)
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/* now process all callbacks */
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while (!list_empty(&timer->sack_list_head)) {
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p = timer->sack_list_head.next; /* get first item */
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- ti = (snd_timer_instance_t *)list_entry(p, snd_timer_instance_t, ack_list);
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+ ti = list_entry(p, snd_timer_instance_t, ack_list);
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/* remove from ack_list and make empty */
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list_del_init(p);
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-
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+
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ticks = ti->pticks;
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ti->pticks = 0;
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resolution = ti->resolution;
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@@ -644,7 +662,7 @@ void snd_timer_interrupt(snd_timer_t * timer, unsigned long ticks_left)
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{
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snd_timer_instance_t *ti, *ts;
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unsigned long resolution, ticks;
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- struct list_head *p, *q, *n;
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+ struct list_head *p, *q, *n, *ack_list_head;
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int use_tasklet = 0;
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if (timer == NULL)
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@@ -659,11 +677,12 @@ void snd_timer_interrupt(snd_timer_t * timer, unsigned long ticks_left)
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resolution = timer->hw.resolution;
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/* loop for all active instances
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- * here we cannot use list_for_each because the active_list of a processed
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- * instance is relinked to done_list_head before callback is called.
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+ * Here we cannot use list_for_each because the active_list of a
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+ * processed instance is relinked to done_list_head before the callback
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+ * is called.
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*/
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list_for_each_safe(p, n, &timer->active_list_head) {
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- ti = (snd_timer_instance_t *)list_entry(p, snd_timer_instance_t, active_list);
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+ ti = list_entry(p, snd_timer_instance_t, active_list);
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if (!(ti->flags & SNDRV_TIMER_IFLG_RUNNING))
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continue;
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ti->pticks += ticks_left;
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@@ -681,26 +700,19 @@ void snd_timer_interrupt(snd_timer_t * timer, unsigned long ticks_left)
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if (--timer->running)
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list_del(p);
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}
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- if (list_empty(&ti->ack_list)) {
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- if ((timer->hw.flags & SNDRV_TIMER_HW_TASKLET) ||
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- (ti->flags & SNDRV_TIMER_IFLG_FAST)) {
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- list_add_tail(&ti->ack_list, &timer->ack_list_head);
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- } else {
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- list_add_tail(&ti->ack_list, &timer->sack_list_head);
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- }
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- }
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+ if ((timer->hw.flags & SNDRV_TIMER_HW_TASKLET) ||
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+ (ti->flags & SNDRV_TIMER_IFLG_FAST))
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+ ack_list_head = &timer->ack_list_head;
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+ else
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+ ack_list_head = &timer->sack_list_head;
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+ if (list_empty(&ti->ack_list))
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+ list_add_tail(&ti->ack_list, ack_list_head);
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list_for_each(q, &ti->slave_active_head) {
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- ts = (snd_timer_instance_t *)list_entry(q, snd_timer_instance_t, active_list);
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+ ts = list_entry(q, snd_timer_instance_t, active_list);
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ts->pticks = ti->pticks;
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ts->resolution = resolution;
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- if (list_empty(&ts->ack_list)) {
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- if ((timer->hw.flags & SNDRV_TIMER_HW_TASKLET) ||
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- (ti->flags & SNDRV_TIMER_IFLG_FAST)) {
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- list_add_tail(&ts->ack_list, &timer->ack_list_head);
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- } else {
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- list_add_tail(&ts->ack_list, &timer->sack_list_head);
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- }
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- }
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+ if (list_empty(&ts->ack_list))
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+ list_add_tail(&ts->ack_list, ack_list_head);
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}
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}
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if (timer->flags & SNDRV_TIMER_FLG_RESCHED)
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@@ -723,11 +735,11 @@ void snd_timer_interrupt(snd_timer_t * timer, unsigned long ticks_left)
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/* now process all fast callbacks */
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while (!list_empty(&timer->ack_list_head)) {
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p = timer->ack_list_head.next; /* get first item */
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- ti = (snd_timer_instance_t *)list_entry(p, snd_timer_instance_t, ack_list);
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-
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|
+ ti = list_entry(p, snd_timer_instance_t, ack_list);
|
|
|
+
|
|
|
/* remove from ack_list and make empty */
|
|
|
list_del_init(p);
|
|
|
-
|
|
|
+
|
|
|
ticks = ti->pticks;
|
|
|
ti->pticks = 0;
|
|
|
|
|
@@ -751,7 +763,8 @@ 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(snd_card_t *card, char *id, snd_timer_id_t *tid,
|
|
|
+ snd_timer_t **rtimer)
|
|
|
{
|
|
|
snd_timer_t *timer;
|
|
|
int err;
|
|
@@ -779,9 +792,12 @@ int snd_timer_new(snd_card_t *card, char *id, snd_timer_id_t *tid, snd_timer_t *
|
|
|
INIT_LIST_HEAD(&timer->ack_list_head);
|
|
|
INIT_LIST_HEAD(&timer->sack_list_head);
|
|
|
spin_lock_init(&timer->lock);
|
|
|
- tasklet_init(&timer->task_queue, snd_timer_tasklet, (unsigned long)timer);
|
|
|
+ tasklet_init(&timer->task_queue, snd_timer_tasklet,
|
|
|
+ (unsigned long)timer);
|
|
|
if (card != NULL) {
|
|
|
- if ((err = snd_device_new(card, SNDRV_DEV_TIMER, timer, &ops)) < 0) {
|
|
|
+ timer->module = card->module;
|
|
|
+ err = snd_device_new(card, SNDRV_DEV_TIMER, timer, &ops);
|
|
|
+ if (err < 0) {
|
|
|
snd_timer_free(timer);
|
|
|
return err;
|
|
|
}
|
|
@@ -811,14 +827,15 @@ static int snd_timer_dev_register(snd_device_t *dev)
|
|
|
snd_timer_t *timer1;
|
|
|
struct list_head *p;
|
|
|
|
|
|
- snd_assert(timer != NULL && timer->hw.start != NULL && timer->hw.stop != NULL, return -ENXIO);
|
|
|
+ snd_assert(timer != NULL && timer->hw.start != NULL &&
|
|
|
+ timer->hw.stop != NULL, return -ENXIO);
|
|
|
if (!(timer->hw.flags & SNDRV_TIMER_HW_SLAVE) &&
|
|
|
!timer->hw.resolution && timer->hw.c_resolution == NULL)
|
|
|
return -EINVAL;
|
|
|
|
|
|
down(®ister_mutex);
|
|
|
list_for_each(p, &snd_timer_list) {
|
|
|
- timer1 = (snd_timer_t *)list_entry(p, snd_timer_t, device_list);
|
|
|
+ timer1 = list_entry(p, snd_timer_t, device_list);
|
|
|
if (timer1->tmr_class > timer->tmr_class)
|
|
|
break;
|
|
|
if (timer1->tmr_class < timer->tmr_class)
|
|
@@ -857,7 +874,7 @@ 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 = (snd_timer_instance_t *)list_entry(p, snd_timer_instance_t, open_list);
|
|
|
+ ti = list_entry(p, snd_timer_instance_t, open_list);
|
|
|
ti->timer = NULL;
|
|
|
}
|
|
|
}
|
|
@@ -872,15 +889,18 @@ static int snd_timer_dev_unregister(snd_device_t *device)
|
|
|
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(snd_timer_t *timer, enum sndrv_timer_event event,
|
|
|
+ struct timespec *tstamp)
|
|
|
{
|
|
|
unsigned long flags;
|
|
|
unsigned long resolution = 0;
|
|
|
snd_timer_instance_t *ti, *ts;
|
|
|
struct list_head *p, *n;
|
|
|
|
|
|
- snd_runtime_check(timer->hw.flags & SNDRV_TIMER_HW_SLAVE, return);
|
|
|
- snd_assert(event >= SNDRV_TIMER_EVENT_MSTART && event <= SNDRV_TIMER_EVENT_MRESUME, return);
|
|
|
+ if (! (timer->hw.flags & SNDRV_TIMER_HW_SLAVE))
|
|
|
+ return;
|
|
|
+ snd_assert(event >= SNDRV_TIMER_EVENT_MSTART &&
|
|
|
+ event <= SNDRV_TIMER_EVENT_MRESUME, return);
|
|
|
spin_lock_irqsave(&timer->lock, flags);
|
|
|
if (event == SNDRV_TIMER_EVENT_MSTART ||
|
|
|
event == SNDRV_TIMER_EVENT_MCONTINUE ||
|
|
@@ -891,11 +911,11 @@ void snd_timer_notify(snd_timer_t *timer, enum sndrv_timer_event event, struct t
|
|
|
resolution = timer->hw.resolution;
|
|
|
}
|
|
|
list_for_each(p, &timer->active_list_head) {
|
|
|
- ti = (snd_timer_instance_t *)list_entry(p, snd_timer_instance_t, active_list);
|
|
|
+ ti = list_entry(p, snd_timer_instance_t, active_list);
|
|
|
if (ti->ccallback)
|
|
|
ti->ccallback(ti, event, tstamp, resolution);
|
|
|
list_for_each(n, &ti->slave_active_head) {
|
|
|
- ts = (snd_timer_instance_t *)list_entry(n, snd_timer_instance_t, active_list);
|
|
|
+ ts = list_entry(n, snd_timer_instance_t, active_list);
|
|
|
if (ts->ccallback)
|
|
|
ts->ccallback(ts, event, tstamp, resolution);
|
|
|
}
|
|
@@ -909,7 +929,7 @@ void snd_timer_notify(snd_timer_t *timer, enum sndrv_timer_event event, struct t
|
|
|
int snd_timer_global_new(char *id, int device, snd_timer_t **rtimer)
|
|
|
{
|
|
|
snd_timer_id_t tid;
|
|
|
-
|
|
|
+
|
|
|
tid.dev_class = SNDRV_TIMER_CLASS_GLOBAL;
|
|
|
tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
|
|
|
tid.card = -1;
|
|
@@ -937,7 +957,7 @@ int snd_timer_global_unregister(snd_timer_t *timer)
|
|
|
return snd_timer_unregister(timer);
|
|
|
}
|
|
|
|
|
|
-/*
|
|
|
+/*
|
|
|
* System timer
|
|
|
*/
|
|
|
|
|
@@ -1013,7 +1033,8 @@ static int snd_timer_register_system(void)
|
|
|
struct snd_timer_system_private *priv;
|
|
|
int err;
|
|
|
|
|
|
- if ((err = snd_timer_global_new("system", SNDRV_TIMER_GLOBAL_SYSTEM, &timer)) < 0)
|
|
|
+ err = snd_timer_global_new("system", SNDRV_TIMER_GLOBAL_SYSTEM, &timer);
|
|
|
+ if (err < 0)
|
|
|
return err;
|
|
|
strcpy(timer->name, "system timer");
|
|
|
timer->hw = snd_timer_system;
|
|
@@ -1044,33 +1065,41 @@ static void snd_timer_proc_read(snd_info_entry_t *entry,
|
|
|
|
|
|
down(®ister_mutex);
|
|
|
list_for_each(p, &snd_timer_list) {
|
|
|
- timer = (snd_timer_t *)list_entry(p, snd_timer_t, device_list);
|
|
|
+ timer = list_entry(p, snd_timer_t, device_list);
|
|
|
switch (timer->tmr_class) {
|
|
|
case SNDRV_TIMER_CLASS_GLOBAL:
|
|
|
snd_iprintf(buffer, "G%i: ", timer->tmr_device);
|
|
|
break;
|
|
|
case SNDRV_TIMER_CLASS_CARD:
|
|
|
- snd_iprintf(buffer, "C%i-%i: ", timer->card->number, timer->tmr_device);
|
|
|
+ snd_iprintf(buffer, "C%i-%i: ",
|
|
|
+ timer->card->number, timer->tmr_device);
|
|
|
break;
|
|
|
case SNDRV_TIMER_CLASS_PCM:
|
|
|
- snd_iprintf(buffer, "P%i-%i-%i: ", timer->card->number, timer->tmr_device, timer->tmr_subdevice);
|
|
|
+ snd_iprintf(buffer, "P%i-%i-%i: ", timer->card->number,
|
|
|
+ timer->tmr_device, timer->tmr_subdevice);
|
|
|
break;
|
|
|
default:
|
|
|
- snd_iprintf(buffer, "?%i-%i-%i-%i: ", timer->tmr_class, timer->card ? timer->card->number : -1, timer->tmr_device, timer->tmr_subdevice);
|
|
|
+ snd_iprintf(buffer, "?%i-%i-%i-%i: ", timer->tmr_class,
|
|
|
+ timer->card ? timer->card->number : -1,
|
|
|
+ timer->tmr_device, timer->tmr_subdevice);
|
|
|
}
|
|
|
snd_iprintf(buffer, "%s :", timer->name);
|
|
|
if (timer->hw.resolution)
|
|
|
- snd_iprintf(buffer, " %lu.%03luus (%lu ticks)", timer->hw.resolution / 1000, timer->hw.resolution % 1000, timer->hw.ticks);
|
|
|
+ snd_iprintf(buffer, " %lu.%03luus (%lu ticks)",
|
|
|
+ timer->hw.resolution / 1000,
|
|
|
+ timer->hw.resolution % 1000,
|
|
|
+ timer->hw.ticks);
|
|
|
if (timer->hw.flags & SNDRV_TIMER_HW_SLAVE)
|
|
|
snd_iprintf(buffer, " SLAVE");
|
|
|
snd_iprintf(buffer, "\n");
|
|
|
spin_lock_irqsave(&timer->lock, flags);
|
|
|
list_for_each(q, &timer->open_list_head) {
|
|
|
- ti = (snd_timer_instance_t *)list_entry(q, snd_timer_instance_t, open_list);
|
|
|
- snd_iprintf(buffer, " Client %s : %s : lost interrupts %li\n",
|
|
|
- ti->owner ? ti->owner : "unknown",
|
|
|
- ti->flags & (SNDRV_TIMER_IFLG_START|SNDRV_TIMER_IFLG_RUNNING) ? "running" : "stopped",
|
|
|
- ti->lost);
|
|
|
+ ti = list_entry(q, snd_timer_instance_t, open_list);
|
|
|
+ snd_iprintf(buffer, " Client %s : %s\n",
|
|
|
+ ti->owner ? ti->owner : "unknown",
|
|
|
+ ti->flags & (SNDRV_TIMER_IFLG_START |
|
|
|
+ SNDRV_TIMER_IFLG_RUNNING)
|
|
|
+ ? "running" : "stopped");
|
|
|
}
|
|
|
spin_unlock_irqrestore(&timer->lock, flags);
|
|
|
}
|
|
@@ -1088,7 +1117,7 @@ static void snd_timer_user_interrupt(snd_timer_instance_t *timeri,
|
|
|
snd_timer_user_t *tu = timeri->callback_data;
|
|
|
snd_timer_read_t *r;
|
|
|
int prev;
|
|
|
-
|
|
|
+
|
|
|
spin_lock(&tu->qlock);
|
|
|
if (tu->qused > 0) {
|
|
|
prev = tu->qtail == 0 ? tu->queue_size - 1 : tu->qtail - 1;
|
|
@@ -1113,7 +1142,8 @@ 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(snd_timer_user_t *tu,
|
|
|
+ snd_timer_tread_t *tread)
|
|
|
{
|
|
|
if (tu->qused >= tu->queue_size) {
|
|
|
tu->overrun++;
|
|
@@ -1132,7 +1162,8 @@ static void snd_timer_user_ccallback(snd_timer_instance_t *timeri,
|
|
|
snd_timer_user_t *tu = timeri->callback_data;
|
|
|
snd_timer_tread_t r1;
|
|
|
|
|
|
- if (event >= SNDRV_TIMER_EVENT_START && event <= SNDRV_TIMER_EVENT_PAUSE)
|
|
|
+ if (event >= SNDRV_TIMER_EVENT_START &&
|
|
|
+ event <= SNDRV_TIMER_EVENT_PAUSE)
|
|
|
tu->tstamp = *tstamp;
|
|
|
if ((tu->filter & (1 << event)) == 0 || !tu->tread)
|
|
|
return;
|
|
@@ -1155,15 +1186,17 @@ static void snd_timer_user_tinterrupt(snd_timer_instance_t *timeri,
|
|
|
struct timespec tstamp;
|
|
|
int prev, append = 0;
|
|
|
|
|
|
- snd_timestamp_zero(&tstamp);
|
|
|
+ memset(&tstamp, 0, sizeof(tstamp));
|
|
|
spin_lock(&tu->qlock);
|
|
|
- if ((tu->filter & ((1 << SNDRV_TIMER_EVENT_RESOLUTION)|(1 << SNDRV_TIMER_EVENT_TICK))) == 0) {
|
|
|
+ if ((tu->filter & ((1 << SNDRV_TIMER_EVENT_RESOLUTION) |
|
|
|
+ (1 << SNDRV_TIMER_EVENT_TICK))) == 0) {
|
|
|
spin_unlock(&tu->qlock);
|
|
|
return;
|
|
|
}
|
|
|
if (tu->last_resolution != resolution || ticks > 0)
|
|
|
- snd_timestamp_now(&tstamp, 1);
|
|
|
- if ((tu->filter & (1 << SNDRV_TIMER_EVENT_RESOLUTION)) && tu->last_resolution != resolution) {
|
|
|
+ getnstimeofday(&tstamp);
|
|
|
+ if ((tu->filter & (1 << SNDRV_TIMER_EVENT_RESOLUTION)) &&
|
|
|
+ tu->last_resolution != resolution) {
|
|
|
r1.event = SNDRV_TIMER_EVENT_RESOLUTION;
|
|
|
r1.tstamp = tstamp;
|
|
|
r1.val = resolution;
|
|
@@ -1201,7 +1234,7 @@ 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;
|
|
|
-
|
|
|
+
|
|
|
tu = kzalloc(sizeof(*tu), GFP_KERNEL);
|
|
|
if (tu == NULL)
|
|
|
return -ENOMEM;
|
|
@@ -1210,7 +1243,8 @@ 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 = (snd_timer_read_t *)kmalloc(tu->queue_size * sizeof(snd_timer_read_t), GFP_KERNEL);
|
|
|
+ tu->queue = kmalloc(tu->queue_size * sizeof(snd_timer_read_t),
|
|
|
+ GFP_KERNEL);
|
|
|
if (tu->queue == NULL) {
|
|
|
kfree(tu);
|
|
|
return -ENOMEM;
|
|
@@ -1259,7 +1293,7 @@ static int snd_timer_user_next_device(snd_timer_id_t __user *_tid)
|
|
|
snd_timer_id_t id;
|
|
|
snd_timer_t *timer;
|
|
|
struct list_head *p;
|
|
|
-
|
|
|
+
|
|
|
if (copy_from_user(&id, _tid, sizeof(id)))
|
|
|
return -EFAULT;
|
|
|
down(®ister_mutex);
|
|
@@ -1267,7 +1301,8 @@ static int snd_timer_user_next_device(snd_timer_id_t __user *_tid)
|
|
|
if (list_empty(&snd_timer_list))
|
|
|
snd_timer_user_zero_id(&id);
|
|
|
else {
|
|
|
- timer = (snd_timer_t *)list_entry(snd_timer_list.next, snd_timer_t, device_list);
|
|
|
+ timer = list_entry(snd_timer_list.next,
|
|
|
+ snd_timer_t, device_list);
|
|
|
snd_timer_user_copy_id(&id, timer);
|
|
|
}
|
|
|
} else {
|
|
@@ -1275,7 +1310,7 @@ 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 = (snd_timer_t *)list_entry(p, snd_timer_t, device_list);
|
|
|
+ timer = list_entry(p, snd_timer_t, device_list);
|
|
|
if (timer->tmr_class > SNDRV_TIMER_CLASS_GLOBAL) {
|
|
|
snd_timer_user_copy_id(&id, timer);
|
|
|
break;
|
|
@@ -1299,12 +1334,16 @@ static int snd_timer_user_next_device(snd_timer_id_t __user *_tid)
|
|
|
if (id.device < 0) {
|
|
|
id.device = 0;
|
|
|
} else {
|
|
|
- id.subdevice = id.subdevice < 0 ? 0 : id.subdevice + 1;
|
|
|
+ if (id.subdevice < 0) {
|
|
|
+ id.subdevice = 0;
|
|
|
+ } else {
|
|
|
+ id.subdevice++;
|
|
|
+ }
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
list_for_each(p, &snd_timer_list) {
|
|
|
- timer = (snd_timer_t *)list_entry(p, snd_timer_t, device_list);
|
|
|
+ timer = list_entry(p, snd_timer_t, device_list);
|
|
|
if (timer->tmr_class > id.dev_class) {
|
|
|
snd_timer_user_copy_id(&id, timer);
|
|
|
break;
|
|
@@ -1343,9 +1382,10 @@ static int snd_timer_user_next_device(snd_timer_id_t __user *_tid)
|
|
|
if (copy_to_user(_tid, &id, sizeof(*_tid)))
|
|
|
return -EFAULT;
|
|
|
return 0;
|
|
|
-}
|
|
|
+}
|
|
|
|
|
|
-static int snd_timer_user_ginfo(struct file *file, snd_timer_ginfo_t __user *_ginfo)
|
|
|
+static int snd_timer_user_ginfo(struct file *file,
|
|
|
+ snd_timer_ginfo_t __user *_ginfo)
|
|
|
{
|
|
|
snd_timer_ginfo_t *ginfo;
|
|
|
snd_timer_id_t tid;
|
|
@@ -1389,7 +1429,8 @@ static int snd_timer_user_ginfo(struct file *file, snd_timer_ginfo_t __user *_gi
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
-static int snd_timer_user_gparams(struct file *file, snd_timer_gparams_t __user *_gparams)
|
|
|
+static int snd_timer_user_gparams(struct file *file,
|
|
|
+ snd_timer_gparams_t __user *_gparams)
|
|
|
{
|
|
|
snd_timer_gparams_t gparams;
|
|
|
snd_timer_t *t;
|
|
@@ -1399,23 +1440,26 @@ static int snd_timer_user_gparams(struct file *file, snd_timer_gparams_t __user
|
|
|
return -EFAULT;
|
|
|
down(®ister_mutex);
|
|
|
t = snd_timer_find(&gparams.tid);
|
|
|
- if (t != NULL) {
|
|
|
- if (list_empty(&t->open_list_head)) {
|
|
|
- if (t->hw.set_period)
|
|
|
- err = t->hw.set_period(t, gparams.period_num, gparams.period_den);
|
|
|
- else
|
|
|
- err = -ENOSYS;
|
|
|
- } else {
|
|
|
- err = -EBUSY;
|
|
|
- }
|
|
|
- } else {
|
|
|
+ if (!t) {
|
|
|
err = -ENODEV;
|
|
|
+ goto _error;
|
|
|
+ }
|
|
|
+ if (!list_empty(&t->open_list_head)) {
|
|
|
+ err = -EBUSY;
|
|
|
+ goto _error;
|
|
|
}
|
|
|
+ if (!t->hw.set_period) {
|
|
|
+ err = -ENOSYS;
|
|
|
+ goto _error;
|
|
|
+ }
|
|
|
+ err = t->hw.set_period(t, gparams.period_num, gparams.period_den);
|
|
|
+_error:
|
|
|
up(®ister_mutex);
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
-static int snd_timer_user_gstatus(struct file *file, snd_timer_gstatus_t __user *_gstatus)
|
|
|
+static int snd_timer_user_gstatus(struct file *file,
|
|
|
+ snd_timer_gstatus_t __user *_gstatus)
|
|
|
{
|
|
|
snd_timer_gstatus_t gstatus;
|
|
|
snd_timer_id_t tid;
|
|
@@ -1435,7 +1479,8 @@ static int snd_timer_user_gstatus(struct file *file, snd_timer_gstatus_t __user
|
|
|
else
|
|
|
gstatus.resolution = t->hw.resolution;
|
|
|
if (t->hw.precise_resolution) {
|
|
|
- t->hw.precise_resolution(t, &gstatus.resolution_num, &gstatus.resolution_den);
|
|
|
+ t->hw.precise_resolution(t, &gstatus.resolution_num,
|
|
|
+ &gstatus.resolution_den);
|
|
|
} else {
|
|
|
gstatus.resolution_num = gstatus.resolution;
|
|
|
gstatus.resolution_den = 1000000000uL;
|
|
@@ -1449,13 +1494,14 @@ static int snd_timer_user_gstatus(struct file *file, snd_timer_gstatus_t __user
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
-static int snd_timer_user_tselect(struct file *file, snd_timer_select_t __user *_tselect)
|
|
|
+static int snd_timer_user_tselect(struct file *file,
|
|
|
+ snd_timer_select_t __user *_tselect)
|
|
|
{
|
|
|
snd_timer_user_t *tu;
|
|
|
snd_timer_select_t tselect;
|
|
|
char str[32];
|
|
|
int err = 0;
|
|
|
-
|
|
|
+
|
|
|
tu = file->private_data;
|
|
|
down(&tu->tread_sem);
|
|
|
if (tu->timeri) {
|
|
@@ -1469,7 +1515,8 @@ static int snd_timer_user_tselect(struct file *file, snd_timer_select_t __user *
|
|
|
sprintf(str, "application %i", current->pid);
|
|
|
if (tselect.id.dev_class != SNDRV_TIMER_CLASS_SLAVE)
|
|
|
tselect.id.dev_sclass = SNDRV_TIMER_SCLASS_APPLICATION;
|
|
|
- if ((err = snd_timer_open(&tu->timeri, str, &tselect.id, current->pid)) < 0)
|
|
|
+ err = snd_timer_open(&tu->timeri, str, &tselect.id, current->pid);
|
|
|
+ if (err < 0)
|
|
|
goto __err;
|
|
|
|
|
|
kfree(tu->queue);
|
|
@@ -1477,21 +1524,24 @@ static int snd_timer_user_tselect(struct file *file, snd_timer_select_t __user *
|
|
|
kfree(tu->tqueue);
|
|
|
tu->tqueue = NULL;
|
|
|
if (tu->tread) {
|
|
|
- tu->tqueue = (snd_timer_tread_t *)kmalloc(tu->queue_size * sizeof(snd_timer_tread_t), GFP_KERNEL);
|
|
|
+ tu->tqueue = kmalloc(tu->queue_size * sizeof(snd_timer_tread_t),
|
|
|
+ GFP_KERNEL);
|
|
|
if (tu->tqueue == NULL)
|
|
|
err = -ENOMEM;
|
|
|
} else {
|
|
|
- tu->queue = (snd_timer_read_t *)kmalloc(tu->queue_size * sizeof(snd_timer_read_t), GFP_KERNEL);
|
|
|
+ tu->queue = kmalloc(tu->queue_size * sizeof(snd_timer_read_t),
|
|
|
+ GFP_KERNEL);
|
|
|
if (tu->queue == NULL)
|
|
|
err = -ENOMEM;
|
|
|
}
|
|
|
-
|
|
|
+
|
|
|
if (err < 0) {
|
|
|
snd_timer_close(tu->timeri);
|
|
|
tu->timeri = NULL;
|
|
|
} else {
|
|
|
tu->timeri->flags |= SNDRV_TIMER_IFLG_FAST;
|
|
|
- tu->timeri->callback = tu->tread ? snd_timer_user_tinterrupt : snd_timer_user_interrupt;
|
|
|
+ tu->timeri->callback = tu->tread
|
|
|
+ ? snd_timer_user_tinterrupt : snd_timer_user_interrupt;
|
|
|
tu->timeri->ccallback = snd_timer_user_ccallback;
|
|
|
tu->timeri->callback_data = (void *)tu;
|
|
|
}
|
|
@@ -1501,7 +1551,8 @@ static int snd_timer_user_tselect(struct file *file, snd_timer_select_t __user *
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
-static int snd_timer_user_info(struct file *file, snd_timer_info_t __user *_info)
|
|
|
+static int snd_timer_user_info(struct file *file,
|
|
|
+ snd_timer_info_t __user *_info)
|
|
|
{
|
|
|
snd_timer_user_t *tu;
|
|
|
snd_timer_info_t *info;
|
|
@@ -1528,7 +1579,8 @@ static int snd_timer_user_info(struct file *file, snd_timer_info_t __user *_info
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
-static int snd_timer_user_params(struct file *file, snd_timer_params_t __user *_params)
|
|
|
+static int snd_timer_user_params(struct file *file,
|
|
|
+ snd_timer_params_t __user *_params)
|
|
|
{
|
|
|
snd_timer_user_t *tu;
|
|
|
snd_timer_params_t params;
|
|
@@ -1536,7 +1588,7 @@ static int snd_timer_user_params(struct file *file, snd_timer_params_t __user *_
|
|
|
snd_timer_read_t *tr;
|
|
|
snd_timer_tread_t *ttr;
|
|
|
int err;
|
|
|
-
|
|
|
+
|
|
|
tu = file->private_data;
|
|
|
snd_assert(tu->timeri != NULL, return -ENXIO);
|
|
|
t = tu->timeri->timer;
|
|
@@ -1547,7 +1599,8 @@ static int snd_timer_user_params(struct file *file, snd_timer_params_t __user *_
|
|
|
err = -EINVAL;
|
|
|
goto _end;
|
|
|
}
|
|
|
- if (params.queue_size > 0 && (params.queue_size < 32 || params.queue_size > 1024)) {
|
|
|
+ if (params.queue_size > 0 &&
|
|
|
+ (params.queue_size < 32 || params.queue_size > 1024)) {
|
|
|
err = -EINVAL;
|
|
|
goto _end;
|
|
|
}
|
|
@@ -1580,16 +1633,19 @@ static int snd_timer_user_params(struct file *file, snd_timer_params_t __user *_
|
|
|
if (params.flags & SNDRV_TIMER_PSFLG_EARLY_EVENT)
|
|
|
tu->timeri->flags |= SNDRV_TIMER_IFLG_EARLY_EVENT;
|
|
|
spin_unlock_irq(&t->lock);
|
|
|
- if (params.queue_size > 0 && (unsigned int)tu->queue_size != params.queue_size) {
|
|
|
+ if (params.queue_size > 0 &&
|
|
|
+ (unsigned int)tu->queue_size != params.queue_size) {
|
|
|
if (tu->tread) {
|
|
|
- ttr = (snd_timer_tread_t *)kmalloc(params.queue_size * sizeof(snd_timer_tread_t), GFP_KERNEL);
|
|
|
+ ttr = kmalloc(params.queue_size * sizeof(*ttr),
|
|
|
+ GFP_KERNEL);
|
|
|
if (ttr) {
|
|
|
kfree(tu->tqueue);
|
|
|
tu->queue_size = params.queue_size;
|
|
|
tu->tqueue = ttr;
|
|
|
}
|
|
|
} else {
|
|
|
- tr = (snd_timer_read_t *)kmalloc(params.queue_size * sizeof(snd_timer_read_t), GFP_KERNEL);
|
|
|
+ tr = kmalloc(params.queue_size * sizeof(*tr),
|
|
|
+ GFP_KERNEL);
|
|
|
if (tr) {
|
|
|
kfree(tu->queue);
|
|
|
tu->queue_size = params.queue_size;
|
|
@@ -1613,7 +1669,6 @@ static int snd_timer_user_params(struct file *file, snd_timer_params_t __user *_
|
|
|
tu->qused++;
|
|
|
tu->qtail++;
|
|
|
}
|
|
|
-
|
|
|
}
|
|
|
tu->filter = params.filter;
|
|
|
tu->ticks = params.ticks;
|
|
@@ -1624,11 +1679,12 @@ static int snd_timer_user_params(struct file *file, snd_timer_params_t __user *_
|
|
|
return err;
|
|
|
}
|
|
|
|
|
|
-static int snd_timer_user_status(struct file *file, snd_timer_status_t __user *_status)
|
|
|
+static int snd_timer_user_status(struct file *file,
|
|
|
+ snd_timer_status_t __user *_status)
|
|
|
{
|
|
|
snd_timer_user_t *tu;
|
|
|
snd_timer_status_t status;
|
|
|
-
|
|
|
+
|
|
|
tu = file->private_data;
|
|
|
snd_assert(tu->timeri != NULL, return -ENXIO);
|
|
|
memset(&status, 0, sizeof(status));
|
|
@@ -1648,7 +1704,7 @@ static int snd_timer_user_start(struct file *file)
|
|
|
{
|
|
|
int err;
|
|
|
snd_timer_user_t *tu;
|
|
|
-
|
|
|
+
|
|
|
tu = file->private_data;
|
|
|
snd_assert(tu->timeri != NULL, return -ENXIO);
|
|
|
snd_timer_stop(tu->timeri);
|
|
@@ -1661,7 +1717,7 @@ static int snd_timer_user_stop(struct file *file)
|
|
|
{
|
|
|
int err;
|
|
|
snd_timer_user_t *tu;
|
|
|
-
|
|
|
+
|
|
|
tu = file->private_data;
|
|
|
snd_assert(tu->timeri != NULL, return -ENXIO);
|
|
|
return (err = snd_timer_stop(tu->timeri)) < 0 ? err : 0;
|
|
@@ -1671,7 +1727,7 @@ static int snd_timer_user_continue(struct file *file)
|
|
|
{
|
|
|
int err;
|
|
|
snd_timer_user_t *tu;
|
|
|
-
|
|
|
+
|
|
|
tu = file->private_data;
|
|
|
snd_assert(tu->timeri != NULL, return -ENXIO);
|
|
|
tu->timeri->lost = 0;
|
|
@@ -1682,7 +1738,7 @@ static int snd_timer_user_pause(struct file *file)
|
|
|
{
|
|
|
int err;
|
|
|
snd_timer_user_t *tu;
|
|
|
-
|
|
|
+
|
|
|
tu = file->private_data;
|
|
|
snd_assert(tu->timeri != NULL, return -ENXIO);
|
|
|
return (err = snd_timer_pause(tu->timeri)) < 0 ? err : 0;
|
|
@@ -1695,12 +1751,13 @@ enum {
|
|
|
SNDRV_TIMER_IOCTL_PAUSE_OLD = _IO('T', 0x23),
|
|
|
};
|
|
|
|
|
|
-static long snd_timer_user_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
|
|
|
+static long snd_timer_user_ioctl(struct file *file, unsigned int cmd,
|
|
|
+ unsigned long arg)
|
|
|
{
|
|
|
snd_timer_user_t *tu;
|
|
|
void __user *argp = (void __user *)arg;
|
|
|
int __user *p = argp;
|
|
|
-
|
|
|
+
|
|
|
tu = file->private_data;
|
|
|
switch (cmd) {
|
|
|
case SNDRV_TIMER_IOCTL_PVERSION:
|
|
@@ -1710,7 +1767,7 @@ static long snd_timer_user_ioctl(struct file *file, unsigned int cmd, unsigned l
|
|
|
case SNDRV_TIMER_IOCTL_TREAD:
|
|
|
{
|
|
|
int xarg;
|
|
|
-
|
|
|
+
|
|
|
down(&tu->tread_sem);
|
|
|
if (tu->timeri) { /* too late */
|
|
|
up(&tu->tread_sem);
|
|
@@ -1758,7 +1815,7 @@ static int snd_timer_user_fasync(int fd, struct file * file, int on)
|
|
|
{
|
|
|
snd_timer_user_t *tu;
|
|
|
int err;
|
|
|
-
|
|
|
+
|
|
|
tu = file->private_data;
|
|
|
err = fasync_helper(fd, file, on, &tu->fasync);
|
|
|
if (err < 0)
|
|
@@ -1766,12 +1823,13 @@ static int snd_timer_user_fasync(int fd, struct file * file, int on)
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
-static ssize_t snd_timer_user_read(struct file *file, char __user *buffer, size_t count, loff_t *offset)
|
|
|
+static ssize_t snd_timer_user_read(struct file *file, char __user *buffer,
|
|
|
+ size_t count, loff_t *offset)
|
|
|
{
|
|
|
snd_timer_user_t *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);
|
|
|
spin_lock_irq(&tu->qlock);
|
|
@@ -1805,12 +1863,14 @@ static ssize_t snd_timer_user_read(struct file *file, char __user *buffer, size_
|
|
|
goto _error;
|
|
|
|
|
|
if (tu->tread) {
|
|
|
- if (copy_to_user(buffer, &tu->tqueue[tu->qhead++], sizeof(snd_timer_tread_t))) {
|
|
|
+ if (copy_to_user(buffer, &tu->tqueue[tu->qhead++],
|
|
|
+ sizeof(snd_timer_tread_t))) {
|
|
|
err = -EFAULT;
|
|
|
goto _error;
|
|
|
}
|
|
|
} else {
|
|
|
- if (copy_to_user(buffer, &tu->queue[tu->qhead++], sizeof(snd_timer_read_t))) {
|
|
|
+ if (copy_to_user(buffer, &tu->queue[tu->qhead++],
|
|
|
+ sizeof(snd_timer_read_t))) {
|
|
|
err = -EFAULT;
|
|
|
goto _error;
|
|
|
}
|
|
@@ -1837,7 +1897,7 @@ static unsigned int snd_timer_user_poll(struct file *file, poll_table * wait)
|
|
|
tu = file->private_data;
|
|
|
|
|
|
poll_wait(file, &tu->qchange_sleep, wait);
|
|
|
-
|
|
|
+
|
|
|
mask = 0;
|
|
|
if (tu->qused)
|
|
|
mask |= POLLIN | POLLRDNORM;
|
|
@@ -1881,9 +1941,11 @@ static int __init alsa_timer_init(void)
|
|
|
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");
|
|
|
+ snd_oss_info_register(SNDRV_OSS_INFO_DEV_TIMERS, SNDRV_CARDS - 1,
|
|
|
+ "system timer");
|
|
|
#endif
|
|
|
- if ((entry = snd_info_create_module_entry(THIS_MODULE, "timers", NULL)) != NULL) {
|
|
|
+ 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) {
|
|
@@ -1893,10 +1955,12 @@ static int __init alsa_timer_init(void)
|
|
|
}
|
|
|
snd_timer_proc_entry = entry;
|
|
|
if ((err = snd_timer_register_system()) < 0)
|
|
|
- snd_printk(KERN_ERR "unable to register system timer (%i)\n", err);
|
|
|
+ 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)
|
|
|
- snd_printk(KERN_ERR "unable to register timer device (%i)\n", err);
|
|
|
+ snd_printk(KERN_ERR "unable to register timer device (%i)\n",
|
|
|
+ err);
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
@@ -1907,7 +1971,7 @@ 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 = (snd_timer_t *)list_entry(p, snd_timer_t, device_list);
|
|
|
+ snd_timer_t *timer = list_entry(p, snd_timer_t, device_list);
|
|
|
snd_timer_unregister(timer);
|
|
|
}
|
|
|
if (snd_timer_proc_entry) {
|