22 	struct snd_bebob *bebob = hwdep->private_data;  in hwdep_read()  local
26 	spin_lock_irq(&bebob->lock);  in hwdep_read()
28 	while (!bebob->dev_lock_changed) {  in hwdep_read()
29 		prepare_to_wait(&bebob->hwdep_wait, &wait, TASK_INTERRUPTIBLE);  in hwdep_read()
30 		spin_unlock_irq(&bebob->lock);  in hwdep_read()
32 		finish_wait(&bebob->hwdep_wait, &wait);  in hwdep_read()
35 		spin_lock_irq(&bebob->lock);  in hwdep_read()
40 	if (bebob->dev_lock_changed) {  in hwdep_read()
42 		event.lock_status.status = (bebob->dev_lock_count > 0);  in hwdep_read()
43 		bebob->dev_lock_changed = false;  in hwdep_read()
46 	spin_unlock_irq(&bebob->lock);  in hwdep_read()
57 	struct snd_bebob *bebob = hwdep->private_data;  in hwdep_poll()  local
60 	poll_wait(file, &bebob->hwdep_wait, wait);  in hwdep_poll()
62 	spin_lock_irq(&bebob->lock);  in hwdep_poll()
63 	if (bebob->dev_lock_changed)  in hwdep_poll()
67 	spin_unlock_irq(&bebob->lock);  in hwdep_poll()
73 hwdep_get_info(struct snd_bebob *bebob, void __user *arg)  in hwdep_get_info()  argument
75 	struct fw_device *dev = fw_parent_device(bebob->unit);  in hwdep_get_info()
93 hwdep_lock(struct snd_bebob *bebob)  in hwdep_lock()  argument
97 	spin_lock_irq(&bebob->lock);  in hwdep_lock()
99 	if (bebob->dev_lock_count == 0) {  in hwdep_lock()
100 		bebob->dev_lock_count = -1;  in hwdep_lock()
106 	spin_unlock_irq(&bebob->lock);  in hwdep_lock()
112 hwdep_unlock(struct snd_bebob *bebob)  in hwdep_unlock()  argument
116 	spin_lock_irq(&bebob->lock);  in hwdep_unlock()
118 	if (bebob->dev_lock_count == -1) {  in hwdep_unlock()
119 		bebob->dev_lock_count = 0;  in hwdep_unlock()
125 	spin_unlock_irq(&bebob->lock);  in hwdep_unlock()
133 	struct snd_bebob *bebob = hwdep->private_data;  in hwdep_release()  local
135 	spin_lock_irq(&bebob->lock);  in hwdep_release()
136 	if (bebob->dev_lock_count == -1)  in hwdep_release()
137 		bebob->dev_lock_count = 0;  in hwdep_release()
138 	spin_unlock_irq(&bebob->lock);  in hwdep_release()
147 	struct snd_bebob *bebob = hwdep->private_data;  in hwdep_ioctl()  local
151 		return hwdep_get_info(bebob, (void __user *)arg);  in hwdep_ioctl()
153 		return hwdep_lock(bebob);  in hwdep_ioctl()
155 		return hwdep_unlock(bebob);  in hwdep_ioctl()
173 int snd_bebob_create_hwdep_device(struct snd_bebob *bebob)  in snd_bebob_create_hwdep_device()  argument
185 	err = snd_hwdep_new(bebob->card, "BeBoB", 0, &hwdep);  in snd_bebob_create_hwdep_device()
191 	hwdep->private_data = bebob;  in snd_bebob_create_hwdep_device()