41 void omap_mbox_init_seq(struct omap_mbox *mbox)  in omap_mbox_init_seq()  argument
43 	mbox_seq_init(mbox);  in omap_mbox_init_seq()
50 static int __mbox_msg_send(struct omap_mbox *mbox, mbox_msg_t msg, void *arg)  in __mbox_msg_send()  argument
54 	while (mbox_fifo_full(mbox)) {  in __mbox_msg_send()
55 		if (mbox->ops->type == OMAP_MBOX_TYPE2)  in __mbox_msg_send()
62 	if (arg && mbox->txq->callback) {  in __mbox_msg_send()
63 		ret = mbox->txq->callback(arg);  in __mbox_msg_send()
68 	mbox_seq_toggle(mbox, &msg);  in __mbox_msg_send()
69 	mbox_fifo_write(mbox, msg);  in __mbox_msg_send()
74 int omap_mbox_msg_send(struct omap_mbox *mbox, mbox_msg_t msg, void* arg)  in omap_mbox_msg_send()  argument
77 	struct request_queue *q = mbox->txq->queue;  in omap_mbox_msg_send()
89 	schedule_work(&mbox->txq->work);  in omap_mbox_msg_send()
101 	struct omap_mbox *mbox = mq->queue->queuedata;  in mbox_tx_work()  local
102 	struct request_queue *q = mbox->txq->queue;  in mbox_tx_work()
112 		ret = __mbox_msg_send(mbox, (mbox_msg_t) rq->data, rq->special);  in mbox_tx_work()
114 			enable_mbox_irq(mbox, IRQ_TX);  in mbox_tx_work()
132 	struct omap_mbox *mbox = mq->queue->queuedata;  in mbox_rx_work()  local
133 	struct request_queue *q = mbox->rxq->queue;  in mbox_rx_work()
138 	if (mbox->rxq->callback == NULL) {  in mbox_rx_work()
139 		sysfs_notify(&mbox->dev.kobj, NULL, "mbox");  in mbox_rx_work()
155 		mbox->rxq->callback((void *)msg);  in mbox_rx_work()
170 static void __mbox_tx_interrupt(struct omap_mbox *mbox)  in __mbox_tx_interrupt()  argument
172 	disable_mbox_irq(mbox, IRQ_TX);  in __mbox_tx_interrupt()
173 	ack_mbox_irq(mbox, IRQ_TX);  in __mbox_tx_interrupt()
174 	schedule_work(&mbox->txq->work);  in __mbox_tx_interrupt()
177 static void __mbox_rx_interrupt(struct omap_mbox *mbox)  in __mbox_rx_interrupt()  argument
181 	struct request_queue *q = mbox->rxq->queue;  in __mbox_rx_interrupt()
183 	disable_mbox_irq(mbox, IRQ_RX);  in __mbox_rx_interrupt()
185 	while (!mbox_fifo_empty(mbox)) {  in __mbox_rx_interrupt()
190 		msg = mbox_fifo_read(mbox);  in __mbox_rx_interrupt()
193 		if (unlikely(mbox_seq_test(mbox, msg))) {  in __mbox_rx_interrupt()
195 			if (mbox->err_notify)  in __mbox_rx_interrupt()
196 				mbox->err_notify();  in __mbox_rx_interrupt()
200 		if (mbox->ops->type == OMAP_MBOX_TYPE1)  in __mbox_rx_interrupt()
205 	ack_mbox_irq(mbox, IRQ_RX);  in __mbox_rx_interrupt()
206 	enable_mbox_irq(mbox, IRQ_RX);  in __mbox_rx_interrupt()
208 	schedule_work(&mbox->rxq->work);  in __mbox_rx_interrupt()
213 	struct omap_mbox *mbox = p;  in mbox_interrupt()  local
215 	if (is_mbox_irq(mbox, IRQ_TX))  in mbox_interrupt()
216 		__mbox_tx_interrupt(mbox);  in mbox_interrupt()
218 	if (is_mbox_irq(mbox, IRQ_RX))  in mbox_interrupt()
219 		__mbox_rx_interrupt(mbox);  in mbox_interrupt()
233 	struct omap_mbox *mbox = dev_get_drvdata(dev);  in omap_mbox_write()  local
236 		ret = omap_mbox_msg_send(mbox, be32_to_cpu(*p), NULL);  in omap_mbox_write()
251 	struct omap_mbox *mbox = dev_get_drvdata(dev);  in omap_mbox_read()  local
252 	struct request_queue *q = mbox->rxq->queue;  in omap_mbox_read()
267 		if (unlikely(mbox_seq_test(mbox, *p))) {  in omap_mbox_read()
279 static DEVICE_ATTR(mbox, S_IRUGO | S_IWUSR, omap_mbox_read, omap_mbox_write);
286 static CLASS_ATTR(mbox, S_IRUGO, mbox_show, NULL);
292 static struct omap_mbox_queue *mbox_queue_alloc(struct omap_mbox *mbox,  in mbox_queue_alloc()  argument
308 	q->queuedata = mbox;  in mbox_queue_alloc()
325 static int omap_mbox_init(struct omap_mbox *mbox)  in omap_mbox_init()  argument
330 	if (likely(mbox->ops->startup)) {  in omap_mbox_init()
331 		ret = mbox->ops->startup(mbox);  in omap_mbox_init()
336 	mbox->dev.class = &omap_mbox_class;  in omap_mbox_init()
337 	dev_set_name(&mbox->dev, "%s", mbox->name);  in omap_mbox_init()
338 	dev_set_drvdata(&mbox->dev, mbox);  in omap_mbox_init()
340 	ret = device_register(&mbox->dev);  in omap_mbox_init()
344 	ret = device_create_file(&mbox->dev, &dev_attr_mbox);  in omap_mbox_init()
351 	ret = request_irq(mbox->irq, mbox_interrupt, IRQF_DISABLED,  in omap_mbox_init()
352 				mbox->name, mbox);  in omap_mbox_init()
359 	mq = mbox_queue_alloc(mbox, mbox_txq_fn, mbox_tx_work);  in omap_mbox_init()
364 	mbox->txq = mq;  in omap_mbox_init()
366 	mq = mbox_queue_alloc(mbox, mbox_rxq_fn, mbox_rx_work);  in omap_mbox_init()
371 	mbox->rxq = mq;  in omap_mbox_init()
376 	mbox_queue_free(mbox->txq);  in omap_mbox_init()
378 	free_irq(mbox->irq, mbox);  in omap_mbox_init()
380 	device_remove_file(&mbox->dev, &dev_attr_mbox);  in omap_mbox_init()
382 	device_unregister(&mbox->dev);  in omap_mbox_init()
384 	if (unlikely(mbox->ops->shutdown))  in omap_mbox_init()
385 		mbox->ops->shutdown(mbox);  in omap_mbox_init()
390 static void omap_mbox_fini(struct omap_mbox *mbox)  in omap_mbox_fini()  argument
392 	mbox_queue_free(mbox->txq);  in omap_mbox_fini()
393 	mbox_queue_free(mbox->rxq);  in omap_mbox_fini()
395 	free_irq(mbox->irq, mbox);  in omap_mbox_fini()
396 	device_remove_file(&mbox->dev, &dev_attr_mbox);  in omap_mbox_fini()
399 	if (unlikely(mbox->ops->shutdown))  in omap_mbox_fini()
400 		mbox->ops->shutdown(mbox);  in omap_mbox_fini()
417 	struct omap_mbox *mbox;  in omap_mbox_get()  local
421 	mbox = *(find_mboxes(name));  in omap_mbox_get()
422 	if (mbox == NULL) {  in omap_mbox_get()
429 	ret = omap_mbox_init(mbox);  in omap_mbox_get()
433 	return mbox;  in omap_mbox_get()
437 void omap_mbox_put(struct omap_mbox *mbox)  in omap_mbox_put()  argument
439 	omap_mbox_fini(mbox);  in omap_mbox_put()
443 int omap_mbox_register(struct omap_mbox *mbox)  in omap_mbox_register()  argument
448 	if (!mbox)  in omap_mbox_register()
450 	if (mbox->next)  in omap_mbox_register()
454 	tmp = find_mboxes(mbox->name);  in omap_mbox_register()
458 		*tmp = mbox;  in omap_mbox_register()
465 int omap_mbox_unregister(struct omap_mbox *mbox)  in omap_mbox_unregister()  argument
472 		if (mbox == *tmp) {  in omap_mbox_unregister()
473 			*tmp = mbox->next;  in omap_mbox_unregister()
474 			mbox->next = NULL;  in omap_mbox_unregister()