drivers/ps3/ps3-vuart.c

352 	const void *buf, unsigned int bytes, u64 *bytes_written)
358 		ps3_mm_phys_to_lpar(__pa(buf)), bytes, bytes_written);
369 		*bytes_written, bytes, priv->stats.bytes_written);
382 	unsigned int bytes, u64 *bytes_read)
387 	dev_dbg(&dev->core, "%s:%d: %xh\n", __func__, __LINE__, bytes);
390 		ps3_mm_phys_to_lpar(__pa(buf)), bytes, bytes_read);
401 		*bytes_read, bytes, priv->stats.bytes_read);
407  * ps3_vuart_clear_rx_bytes - Discard bytes received.
409  * @bytes: Max byte count to discard, zero = all pending.
415 	unsigned int bytes)
426 	bytes = bytes ? min(bytes, (unsigned int)bytes_waiting) : bytes_waiting;
428 	dev_dbg(&dev->core, "%s:%d: %u\n", __func__, __LINE__, bytes);
430 	if (!bytes)
435 	bytes += 128;
437 	tmp = kmalloc(bytes, GFP_KERNEL);
442 	ps3_vuart_raw_read(dev, tmp, bytes, &bytes_waiting);
446 	/* Don't include these bytes in the stats. */
475 	unsigned int bytes)
483 	dev_dbg(&dev->core, "%s:%d: %u(%xh) bytes\n", __func__, __LINE__,
484 		bytes, bytes);
491 		result = ps3_vuart_raw_write(dev, buf, bytes, &bytes_written);
502 		if (bytes_written == bytes) {
503 			dev_dbg(&dev->core, "%s:%d: wrote %xh bytes\n",
504 				__func__, __LINE__, bytes);
508 		bytes -= bytes_written;
513 	lb = kmalloc(sizeof(struct list_buffer) + bytes, GFP_KERNEL);
518 	memcpy(lb->data, buf, bytes);
520 	lb->tail = lb->data + bytes;
528 	dev_dbg(&dev->core, "%s:%d: queued buf_%lu, %xh bytes\n",
529 		__func__, __LINE__, lb->dbg_number, bytes);
536  * ps3_vuart_queue_rx_bytes - Queue waiting bytes into the buffer list.
538  * @bytes_queued: Number of bytes queued to the buffer list.
550 	u64 bytes;
554 	result = ps3_vuart_get_rx_bytes_waiting(dev, &bytes);
560 	if (!bytes)
565 	bytes += 128;
567 	lb = kmalloc(sizeof(struct list_buffer) + bytes, GFP_ATOMIC);
572 	ps3_vuart_raw_read(dev, lb->data, bytes, &bytes);
575 	lb->tail = lb->data + bytes;
579 	priv->rx_list.bytes_held += bytes;
581 	dev_dbg(&dev->core, "%s:%d: buf_%lu: queued %llxh bytes\n",
582 		__func__, __LINE__, lb->dbg_number, bytes);
584 	*bytes_queued = bytes;
592  * Queue data waiting at the port, and if enough bytes to satisfy the request
593  * are held in the buffer list those bytes are dequeued and copied to the
595  * be statified by bytes held in the list buffers -EAGAIN is returned.
599 	unsigned int bytes)
607 	dev_dbg(&dev->core, "%s:%d: %u(%xh) bytes\n", __func__, __LINE__,
608 		bytes, bytes);
612 	/* Queue rx bytes here for polled reads. */
614 	while (priv->rx_list.bytes_held < bytes) {
619 			dev_dbg(&dev->core, "%s:%d: starved for %lxh bytes\n",
621 				bytes - priv->rx_list.bytes_held);
628 		bytes_read = min((unsigned int)(lb->tail - lb->head), bytes);
632 		bytes -= bytes_read;
638 				"bytes\n", __func__, __LINE__, lb->dbg_number,
645 			"bytes\n", __func__, __LINE__, lb->dbg_number,
672 int ps3_vuart_read_async(struct ps3_system_bus_device *dev, unsigned int bytes)
683 	BUG_ON(!bytes);
686 	if (priv->rx_list.bytes_held >= bytes) {
687 		dev_dbg(&dev->core, "%s:%d: schedule_work %xh bytes\n",
688 			__func__, __LINE__, bytes);
694 	priv->rx_list.work.trigger = bytes;
697 	dev_dbg(&dev->core, "%s:%d: waiting for %u(%xh) bytes\n", __func__,
698 		__LINE__, bytes, bytes);
749 				"%s:%d cleared buf_%lu, %llxh bytes\n",
765 	dev_dbg(&dev->core, "%s:%d wrote %lxh bytes total\n",
783 	u64 bytes;
788 	result = ps3_vuart_queue_rx_bytes(dev, &bytes);
797 		dev_dbg(&dev->core, "%s:%d: schedule_work %lxh bytes\n",