23 	struct snd_bebob *bebob = hwdep->private_data;  in hwdep_read()  local
27 	spin_lock_irq(&bebob->lock);  in hwdep_read()
29 	while (!bebob->dev_lock_changed) {  in hwdep_read()
30 		prepare_to_wait(&bebob->hwdep_wait, &wait, TASK_INTERRUPTIBLE);  in hwdep_read()
31 		spin_unlock_irq(&bebob->lock);  in hwdep_read()
33 		finish_wait(&bebob->hwdep_wait, &wait);  in hwdep_read()
36 		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()
48 	spin_unlock_irq(&bebob->lock);  in hwdep_read()
59 	struct snd_bebob *bebob = hwdep->private_data;  in hwdep_poll()  local
62 	poll_wait(file, &bebob->hwdep_wait, wait);  in hwdep_poll()
64 	spin_lock_irq(&bebob->lock);  in hwdep_poll()
65 	if (bebob->dev_lock_changed)  in hwdep_poll()
69 	spin_unlock_irq(&bebob->lock);  in hwdep_poll()
75 hwdep_get_info(struct snd_bebob *bebob, void __user *arg)  in hwdep_get_info()  argument
77 	struct fw_device *dev = fw_parent_device(bebob->unit);  in hwdep_get_info()
95 hwdep_lock(struct snd_bebob *bebob)  in hwdep_lock()  argument
99 	spin_lock_irq(&bebob->lock);  in hwdep_lock()
101 	if (bebob->dev_lock_count == 0) {  in hwdep_lock()
102 		bebob->dev_lock_count = -1;  in hwdep_lock()
108 	spin_unlock_irq(&bebob->lock);  in hwdep_lock()
114 hwdep_unlock(struct snd_bebob *bebob)  in hwdep_unlock()  argument
118 	spin_lock_irq(&bebob->lock);  in hwdep_unlock()
120 	if (bebob->dev_lock_count == -1) {  in hwdep_unlock()
121 		bebob->dev_lock_count = 0;  in hwdep_unlock()
127 	spin_unlock_irq(&bebob->lock);  in hwdep_unlock()
135 	struct snd_bebob *bebob = hwdep->private_data;  in hwdep_release()  local
137 	spin_lock_irq(&bebob->lock);  in hwdep_release()
138 	if (bebob->dev_lock_count == -1)  in hwdep_release()
139 		bebob->dev_lock_count = 0;  in hwdep_release()
140 	spin_unlock_irq(&bebob->lock);  in hwdep_release()
149 	struct snd_bebob *bebob = hwdep->private_data;  in hwdep_ioctl()  local
153 		return hwdep_get_info(bebob, (void __user *)arg);  in hwdep_ioctl()
155 		return hwdep_lock(bebob);  in hwdep_ioctl()
157 		return hwdep_unlock(bebob);  in hwdep_ioctl()
183 int snd_bebob_create_hwdep_device(struct snd_bebob *bebob)  in snd_bebob_create_hwdep_device()  argument
188 	err = snd_hwdep_new(bebob->card, "BeBoB", 0, &hwdep);  in snd_bebob_create_hwdep_device()
194 	hwdep->private_data = bebob;  in snd_bebob_create_hwdep_device()