22 hwdep_read_resp_buf(struct snd_efw *efw, char __user *buf, long remained,  in hwdep_read_resp_buf()  argument
41 	spin_lock_irq(&efw->lock);  in hwdep_read_resp_buf()
48 	pull_ptr = efw->pull_ptr;  in hwdep_read_resp_buf()
50 	while (efw->push_ptr != pull_ptr) {  in hwdep_read_resp_buf()
61 				(unsigned int)(pull_ptr - efw->resp_buf);  in hwdep_read_resp_buf()
64 			spin_unlock_irq(&efw->lock);  in hwdep_read_resp_buf()
69 			spin_lock_irq(&efw->lock);  in hwdep_read_resp_buf()
72 			if (pull_ptr >= efw->resp_buf + snd_efw_resp_buf_size)  in hwdep_read_resp_buf()
90 	efw->pull_ptr = pull_ptr;  in hwdep_read_resp_buf()
92 	spin_unlock_irq(&efw->lock);  in hwdep_read_resp_buf()
98 hwdep_read_locked(struct snd_efw *efw, char __user *buf, long count,  in hwdep_read_locked()  argument
105 	spin_lock_irq(&efw->lock);  in hwdep_read_locked()
107 	event.lock_status.status = (efw->dev_lock_count > 0);  in hwdep_read_locked()
108 	efw->dev_lock_changed = false;  in hwdep_read_locked()
110 	spin_unlock_irq(&efw->lock);  in hwdep_read_locked()
124 	struct snd_efw *efw = hwdep->private_data;  in hwdep_read()  local
129 	spin_lock_irq(&efw->lock);  in hwdep_read()
131 	dev_lock_changed = efw->dev_lock_changed;  in hwdep_read()
132 	queued = efw->push_ptr != efw->pull_ptr;  in hwdep_read()
135 		prepare_to_wait(&efw->hwdep_wait, &wait, TASK_INTERRUPTIBLE);  in hwdep_read()
136 		spin_unlock_irq(&efw->lock);  in hwdep_read()
138 		finish_wait(&efw->hwdep_wait, &wait);  in hwdep_read()
141 		spin_lock_irq(&efw->lock);  in hwdep_read()
142 		dev_lock_changed = efw->dev_lock_changed;  in hwdep_read()
143 		queued = efw->push_ptr != efw->pull_ptr;  in hwdep_read()
146 	spin_unlock_irq(&efw->lock);  in hwdep_read()
149 		count = hwdep_read_locked(efw, buf, count, offset);  in hwdep_read()
151 		count = hwdep_read_resp_buf(efw, buf, count, offset);  in hwdep_read()
160 	struct snd_efw *efw = hwdep->private_data;  in hwdep_write()  local
179 	if (snd_efw_transaction_cmd(efw->unit, buf, count) < 0)  in hwdep_write()
189 	struct snd_efw *efw = hwdep->private_data;  in hwdep_poll()  local
192 	poll_wait(file, &efw->hwdep_wait, wait);  in hwdep_poll()
194 	spin_lock_irq(&efw->lock);  in hwdep_poll()
195 	if (efw->dev_lock_changed || efw->pull_ptr != efw->push_ptr)  in hwdep_poll()
199 	spin_unlock_irq(&efw->lock);  in hwdep_poll()
205 hwdep_get_info(struct snd_efw *efw, void __user *arg)  in hwdep_get_info()  argument
207 	struct fw_device *dev = fw_parent_device(efw->unit);  in hwdep_get_info()
225 hwdep_lock(struct snd_efw *efw)  in hwdep_lock()  argument
229 	spin_lock_irq(&efw->lock);  in hwdep_lock()
231 	if (efw->dev_lock_count == 0) {  in hwdep_lock()
232 		efw->dev_lock_count = -1;  in hwdep_lock()
238 	spin_unlock_irq(&efw->lock);  in hwdep_lock()
244 hwdep_unlock(struct snd_efw *efw)  in hwdep_unlock()  argument
248 	spin_lock_irq(&efw->lock);  in hwdep_unlock()
250 	if (efw->dev_lock_count == -1) {  in hwdep_unlock()
251 		efw->dev_lock_count = 0;  in hwdep_unlock()
257 	spin_unlock_irq(&efw->lock);  in hwdep_unlock()
265 	struct snd_efw *efw = hwdep->private_data;  in hwdep_release()  local
267 	spin_lock_irq(&efw->lock);  in hwdep_release()
268 	if (efw->dev_lock_count == -1)  in hwdep_release()
269 		efw->dev_lock_count = 0;  in hwdep_release()
270 	spin_unlock_irq(&efw->lock);  in hwdep_release()
279 	struct snd_efw *efw = hwdep->private_data;  in hwdep_ioctl()  local
283 		return hwdep_get_info(efw, (void __user *)arg);  in hwdep_ioctl()
285 		return hwdep_lock(efw);  in hwdep_ioctl()
287 		return hwdep_unlock(efw);  in hwdep_ioctl()
305 int snd_efw_create_hwdep_device(struct snd_efw *efw)  in snd_efw_create_hwdep_device()  argument
318 	err = snd_hwdep_new(efw->card, "Fireworks", 0, &hwdep);  in snd_efw_create_hwdep_device()
324 	hwdep->private_data = efw;  in snd_efw_create_hwdep_device()