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()
41 	event.lock_status.status = (bebob->dev_lock_count > 0);  in hwdep_read()
42 	bebob->dev_lock_changed = false;  in hwdep_read()
44 	spin_unlock_irq(&bebob->lock);  in hwdep_read()
55 	struct snd_bebob *bebob = hwdep->private_data;  in hwdep_poll()  local
58 	poll_wait(file, &bebob->hwdep_wait, wait);  in hwdep_poll()
60 	spin_lock_irq(&bebob->lock);  in hwdep_poll()
61 	if (bebob->dev_lock_changed)  in hwdep_poll()
65 	spin_unlock_irq(&bebob->lock);  in hwdep_poll()
71 hwdep_get_info(struct snd_bebob *bebob, void __user *arg)  in hwdep_get_info()  argument
73 	struct fw_device *dev = fw_parent_device(bebob->unit);  in hwdep_get_info()
91 hwdep_lock(struct snd_bebob *bebob)  in hwdep_lock()  argument
95 	spin_lock_irq(&bebob->lock);  in hwdep_lock()
97 	if (bebob->dev_lock_count == 0) {  in hwdep_lock()
98 		bebob->dev_lock_count = -1;  in hwdep_lock()
104 	spin_unlock_irq(&bebob->lock);  in hwdep_lock()
110 hwdep_unlock(struct snd_bebob *bebob)  in hwdep_unlock()  argument
114 	spin_lock_irq(&bebob->lock);  in hwdep_unlock()
116 	if (bebob->dev_lock_count == -1) {  in hwdep_unlock()
117 		bebob->dev_lock_count = 0;  in hwdep_unlock()
123 	spin_unlock_irq(&bebob->lock);  in hwdep_unlock()
131 	struct snd_bebob *bebob = hwdep->private_data;  in hwdep_release()  local
133 	spin_lock_irq(&bebob->lock);  in hwdep_release()
134 	if (bebob->dev_lock_count == -1)  in hwdep_release()
135 		bebob->dev_lock_count = 0;  in hwdep_release()
136 	spin_unlock_irq(&bebob->lock);  in hwdep_release()
145 	struct snd_bebob *bebob = hwdep->private_data;  in hwdep_ioctl()  local
149 		return hwdep_get_info(bebob, (void __user *)arg);  in hwdep_ioctl()
151 		return hwdep_lock(bebob);  in hwdep_ioctl()
153 		return hwdep_unlock(bebob);  in hwdep_ioctl()
171 int snd_bebob_create_hwdep_device(struct snd_bebob *bebob)  in snd_bebob_create_hwdep_device()  argument
183 	err = snd_hwdep_new(bebob->card, "BeBoB", 0, &hwdep);  in snd_bebob_create_hwdep_device()
189 	hwdep->private_data = bebob;  in snd_bebob_create_hwdep_device()