75 	struct rpmsg_eptdev *eptdev = dev_to_eptdev(dev);  in rpmsg_chrdev_eptdev_destroy()  local
77 	mutex_lock(&eptdev->ept_lock);  in rpmsg_chrdev_eptdev_destroy()
78 	if (eptdev->ept) {  in rpmsg_chrdev_eptdev_destroy()
80 		if (!eptdev->default_ept)  in rpmsg_chrdev_eptdev_destroy()
81 			rpmsg_destroy_ept(eptdev->ept);  in rpmsg_chrdev_eptdev_destroy()
82 		eptdev->ept = NULL;  in rpmsg_chrdev_eptdev_destroy()
84 	mutex_unlock(&eptdev->ept_lock);  in rpmsg_chrdev_eptdev_destroy()
87 	wake_up_interruptible(&eptdev->readq);  in rpmsg_chrdev_eptdev_destroy()
89 	cdev_device_del(&eptdev->cdev, &eptdev->dev);  in rpmsg_chrdev_eptdev_destroy()
90 	put_device(&eptdev->dev);  in rpmsg_chrdev_eptdev_destroy()
99 	struct rpmsg_eptdev *eptdev = priv;  in rpmsg_ept_cb()  local
108 	spin_lock(&eptdev->queue_lock);  in rpmsg_ept_cb()
109 	skb_queue_tail(&eptdev->queue, skb);  in rpmsg_ept_cb()
110 	spin_unlock(&eptdev->queue_lock);  in rpmsg_ept_cb()
113 	wake_up_interruptible(&eptdev->readq);  in rpmsg_ept_cb()
120 	struct rpmsg_eptdev *eptdev = cdev_to_eptdev(inode->i_cdev);  in rpmsg_eptdev_open()  local
122 	struct rpmsg_device *rpdev = eptdev->rpdev;  in rpmsg_eptdev_open()
123 	struct device *dev = &eptdev->dev;  in rpmsg_eptdev_open()
125 	mutex_lock(&eptdev->ept_lock);  in rpmsg_eptdev_open()
126 	if (eptdev->ept) {  in rpmsg_eptdev_open()
127 		mutex_unlock(&eptdev->ept_lock);  in rpmsg_eptdev_open()
137 	if (eptdev->default_ept)  in rpmsg_eptdev_open()
138 		ept = eptdev->default_ept;  in rpmsg_eptdev_open()
140 		ept = rpmsg_create_ept(rpdev, rpmsg_ept_cb, eptdev, eptdev->chinfo);  in rpmsg_eptdev_open()
143 		dev_err(dev, "failed to open %s\n", eptdev->chinfo.name);  in rpmsg_eptdev_open()
145 		mutex_unlock(&eptdev->ept_lock);  in rpmsg_eptdev_open()
149 	eptdev->ept = ept;  in rpmsg_eptdev_open()
150 	filp->private_data = eptdev;  in rpmsg_eptdev_open()
151 	mutex_unlock(&eptdev->ept_lock);  in rpmsg_eptdev_open()
158 	struct rpmsg_eptdev *eptdev = cdev_to_eptdev(inode->i_cdev);  in rpmsg_eptdev_release()  local
159 	struct device *dev = &eptdev->dev;  in rpmsg_eptdev_release()
162 	mutex_lock(&eptdev->ept_lock);  in rpmsg_eptdev_release()
163 	if (eptdev->ept) {  in rpmsg_eptdev_release()
164 		if (!eptdev->default_ept)  in rpmsg_eptdev_release()
165 			rpmsg_destroy_ept(eptdev->ept);  in rpmsg_eptdev_release()
166 		eptdev->ept = NULL;  in rpmsg_eptdev_release()
168 	mutex_unlock(&eptdev->ept_lock);  in rpmsg_eptdev_release()
171 	skb_queue_purge(&eptdev->queue);  in rpmsg_eptdev_release()
181 	struct rpmsg_eptdev *eptdev = filp->private_data;  in rpmsg_eptdev_read_iter()  local
186 	if (!eptdev->ept)  in rpmsg_eptdev_read_iter()
189 	spin_lock_irqsave(&eptdev->queue_lock, flags);  in rpmsg_eptdev_read_iter()
192 	if (skb_queue_empty(&eptdev->queue)) {  in rpmsg_eptdev_read_iter()
193 		spin_unlock_irqrestore(&eptdev->queue_lock, flags);  in rpmsg_eptdev_read_iter()
199 		if (wait_event_interruptible(eptdev->readq,  in rpmsg_eptdev_read_iter()
200 					     !skb_queue_empty(&eptdev->queue) ||  in rpmsg_eptdev_read_iter()
201 					     !eptdev->ept))  in rpmsg_eptdev_read_iter()
205 		if (!eptdev->ept)  in rpmsg_eptdev_read_iter()
208 		spin_lock_irqsave(&eptdev->queue_lock, flags);  in rpmsg_eptdev_read_iter()
211 	skb = skb_dequeue(&eptdev->queue);  in rpmsg_eptdev_read_iter()
212 	spin_unlock_irqrestore(&eptdev->queue_lock, flags);  in rpmsg_eptdev_read_iter()
229 	struct rpmsg_eptdev *eptdev = filp->private_data;  in rpmsg_eptdev_write_iter()  local
243 	if (mutex_lock_interruptible(&eptdev->ept_lock)) {  in rpmsg_eptdev_write_iter()
248 	if (!eptdev->ept) {  in rpmsg_eptdev_write_iter()
254 		ret = rpmsg_trysendto(eptdev->ept, kbuf, len, eptdev->chinfo.dst);  in rpmsg_eptdev_write_iter()
258 		ret = rpmsg_sendto(eptdev->ept, kbuf, len, eptdev->chinfo.dst);  in rpmsg_eptdev_write_iter()
262 	mutex_unlock(&eptdev->ept_lock);  in rpmsg_eptdev_write_iter()
271 	struct rpmsg_eptdev *eptdev = filp->private_data;  in rpmsg_eptdev_poll()  local
274 	if (!eptdev->ept)  in rpmsg_eptdev_poll()
277 	poll_wait(filp, &eptdev->readq, wait);  in rpmsg_eptdev_poll()
279 	if (!skb_queue_empty(&eptdev->queue))  in rpmsg_eptdev_poll()
282 	mask |= rpmsg_poll(eptdev->ept, filp, wait);  in rpmsg_eptdev_poll()
290 	struct rpmsg_eptdev *eptdev = fp->private_data;  in rpmsg_eptdev_ioctl()  local
296 	if (eptdev->default_ept)  in rpmsg_eptdev_ioctl()
299 	return rpmsg_chrdev_eptdev_destroy(&eptdev->dev, NULL);  in rpmsg_eptdev_ioctl()
316 	struct rpmsg_eptdev *eptdev = dev_get_drvdata(dev);  in name_show()  local
318 	return sprintf(buf, "%s\n", eptdev->chinfo.name);  in name_show()
325 	struct rpmsg_eptdev *eptdev = dev_get_drvdata(dev);  in src_show()  local
327 	return sprintf(buf, "%d\n", eptdev->chinfo.src);  in src_show()
334 	struct rpmsg_eptdev *eptdev = dev_get_drvdata(dev);  in dst_show()  local
336 	return sprintf(buf, "%d\n", eptdev->chinfo.dst);  in dst_show()
350 	struct rpmsg_eptdev *eptdev = dev_to_eptdev(dev);  in rpmsg_eptdev_release_device()  local
353 	ida_simple_remove(&rpmsg_minor_ida, MINOR(eptdev->dev.devt));  in rpmsg_eptdev_release_device()
354 	kfree(eptdev);  in rpmsg_eptdev_release_device()
360 	struct rpmsg_eptdev *eptdev;  in rpmsg_chrdev_eptdev_alloc()  local
363 	eptdev = kzalloc(sizeof(*eptdev), GFP_KERNEL);  in rpmsg_chrdev_eptdev_alloc()
364 	if (!eptdev)  in rpmsg_chrdev_eptdev_alloc()
367 	dev = &eptdev->dev;  in rpmsg_chrdev_eptdev_alloc()
368 	eptdev->rpdev = rpdev;  in rpmsg_chrdev_eptdev_alloc()
370 	mutex_init(&eptdev->ept_lock);  in rpmsg_chrdev_eptdev_alloc()
371 	spin_lock_init(&eptdev->queue_lock);  in rpmsg_chrdev_eptdev_alloc()
372 	skb_queue_head_init(&eptdev->queue);  in rpmsg_chrdev_eptdev_alloc()
373 	init_waitqueue_head(&eptdev->readq);  in rpmsg_chrdev_eptdev_alloc()
379 	dev_set_drvdata(dev, eptdev);  in rpmsg_chrdev_eptdev_alloc()
381 	cdev_init(&eptdev->cdev, &rpmsg_eptdev_fops);  in rpmsg_chrdev_eptdev_alloc()
382 	eptdev->cdev.owner = THIS_MODULE;  in rpmsg_chrdev_eptdev_alloc()
384 	return eptdev;  in rpmsg_chrdev_eptdev_alloc()
387 static int rpmsg_chrdev_eptdev_add(struct rpmsg_eptdev *eptdev, struct rpmsg_channel_info chinfo)  in rpmsg_chrdev_eptdev_add()  argument
389 	struct device *dev = &eptdev->dev;  in rpmsg_chrdev_eptdev_add()
392 	eptdev->chinfo = chinfo;  in rpmsg_chrdev_eptdev_add()
405 	ret = cdev_device_add(&eptdev->cdev, &eptdev->dev);  in rpmsg_chrdev_eptdev_add()
420 	kfree(eptdev);  in rpmsg_chrdev_eptdev_add()
428 	struct rpmsg_eptdev *eptdev;  in rpmsg_chrdev_eptdev_create()  local
430 	eptdev = rpmsg_chrdev_eptdev_alloc(rpdev, parent);  in rpmsg_chrdev_eptdev_create()
431 	if (IS_ERR(eptdev))  in rpmsg_chrdev_eptdev_create()
432 		return PTR_ERR(eptdev);  in rpmsg_chrdev_eptdev_create()
434 	return rpmsg_chrdev_eptdev_add(eptdev, chinfo);  in rpmsg_chrdev_eptdev_create()
441 	struct rpmsg_eptdev *eptdev;  in rpmsg_chrdev_probe()  local
448 	eptdev = rpmsg_chrdev_eptdev_alloc(rpdev, dev);  in rpmsg_chrdev_probe()
449 	if (IS_ERR(eptdev))  in rpmsg_chrdev_probe()
450 		return PTR_ERR(eptdev);  in rpmsg_chrdev_probe()
453 	eptdev->default_ept = rpdev->ept;  in rpmsg_chrdev_probe()
459 	eptdev->default_ept->priv = eptdev;  in rpmsg_chrdev_probe()
461 	return rpmsg_chrdev_eptdev_add(eptdev, chinfo);  in rpmsg_chrdev_probe()