zydas/zd1211rw/zd_usb.c

105 static void int_urb_complete(struct urb *urb);
355 #define urb_dev(urb) (&(urb)->dev->dev)
357 static inline void handle_regs_int_override(struct urb *urb)
359 	struct zd_usb *usb = urb->context;
372 static inline void handle_regs_int(struct urb *urb)
374 	struct zd_usb *usb = urb->context;
382 	int_num = le16_to_cpu(*(__le16 *)(urb->transfer_buffer+2));
384 		struct zd_mac *mac = zd_hw_mac(zd_usb_to_hw(urb->context));
386 		memcpy(&mac->intr_buffer, urb->transfer_buffer,
391 		len = urb->actual_length;
392 		intr->read_regs.length = urb->actual_length;
396 		memcpy(intr->read_regs.buffer, urb->transfer_buffer, len);
421 		handle_regs_int_override(urb);
424 static void int_urb_complete(struct urb *urb)
431 	switch (urb->status) {
440 		dev_dbg_f(urb_dev(urb), "urb %p error %d\n", urb, urb->status);
443 		dev_dbg_f(urb_dev(urb), "urb %p error %d\n", urb, urb->status);
447 	if (urb->actual_length < sizeof(hdr)) {
448 		dev_dbg_f(urb_dev(urb), "error: urb %p to small\n", urb);
452 	hdr = urb->transfer_buffer;
454 		dev_dbg_f(urb_dev(urb), "error: urb %p wrong type\n", urb);
458 	/* USB_INT_ID_RETRY_FAILED triggered by tx-urb submit can override
461 	usb = urb->context;
464 		handle_regs_int_override(urb);
468 		handle_regs_int(urb);
471 		zd_mac_tx_failed(urb);
474 		dev_dbg_f(urb_dev(urb), "error: urb %p unknown id %x\n", urb,
480 	r = usb_submit_urb(urb, GFP_ATOMIC);
482 		dev_dbg_f(urb_dev(urb), "error: resubmit urb %p err code %d\n",
483 			  urb, r);
484 		/* TODO: add worker to reset intr->urb */
506 	struct urb *urb;
509 	urb = intr->urb;
511 	return urb != NULL;
519 	struct urb *urb;
523 	urb = usb_alloc_urb(0, GFP_KERNEL);
524 	if (!urb) {
531 	if (intr->urb) {
536 	intr->urb = urb;
548 	usb_fill_int_urb(urb, udev, usb_rcvintpipe(udev, EP_INT_IN),
552 	urb->transfer_dma = intr->buffer_dma;
553 	urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
555 	dev_dbg_f(zd_usb_dev(usb), "submit urb %p\n", intr->urb);
556 	r = usb_submit_urb(urb, GFP_KERNEL);
559 			 "Couldn't submit urb. Error number %d\n", r);
569 	intr->urb = NULL;
572 	usb_free_urb(urb);
582 	struct urb *urb;
587 	urb = intr->urb;
588 	if (!urb) {
592 	intr->urb = NULL;
598 	usb_kill_urb(urb);
599 	dev_dbg_f(zd_usb_dev(usb), "urb %p killed\n", urb);
600 	usb_free_urb(urb);
648 static void rx_urb_complete(struct urb *urb)
657 	switch (urb->status) {
666 		dev_dbg_f(urb_dev(urb), "urb %p error %d\n", urb, urb->status);
669 		dev_dbg_f(urb_dev(urb), "urb %p error %d\n", urb, urb->status);
673 	buffer = urb->transfer_buffer;
674 	length = urb->actual_length;
675 	usb = urb->context;
682 		dev_dbg_f(urb_dev(urb), "*** first fragment ***\n");
696 		dev_dbg_f(urb_dev(urb), "*** second fragment ***\n");
708 	r = usb_submit_urb(urb, GFP_ATOMIC);
710 		dev_dbg_f(urb_dev(urb), "urb %p resubmit error %d\n", urb, r);
713 static struct urb *alloc_rx_urb(struct zd_usb *usb)
716 	struct urb *urb;
719 	urb = usb_alloc_urb(0, GFP_KERNEL);
720 	if (!urb)
723 				    &urb->transfer_dma);
725 		usb_free_urb(urb);
729 	usb_fill_bulk_urb(urb, udev, usb_rcvbulkpipe(udev, EP_DATA_IN),
732 	urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
734 	return urb;
737 static void free_rx_urb(struct urb *urb)
739 	if (!urb)
741 	usb_free_coherent(urb->dev, urb->transfer_buffer_length,
742 			  urb->transfer_buffer, urb->transfer_dma);
743 	usb_free_urb(urb);
750 	struct urb **urbs;
755 	urbs = kcalloc(RX_URBS_COUNT, sizeof(struct urb *), GFP_KERNEL);
816 	struct urb **urbs;
951  * @urb: a URB
956 static void tx_urb_complete(struct urb *urb)
964 	skb = (struct sk_buff *)urb->context;
973 	switch (urb->status) {
982 		dev_dbg_f(urb_dev(urb), "urb %p error %d\n", urb, urb->status);
985 		dev_dbg_f(urb_dev(urb), "urb %p error %d\n", urb, urb->status);
990 	zd_mac_tx_to_dev(skb, urb->status);
991 	usb_free_urb(urb);
995 	usb_anchor_urb(urb, &tx->submitted);
996 	r = usb_submit_urb(urb, GFP_ATOMIC);
998 		usb_unanchor_urb(urb);
999 		dev_dbg_f(urb_dev(urb), "error resubmit urb %p %d\n", urb, r);
1021 	struct urb *urb;
1029 	urb = usb_alloc_urb(0, GFP_ATOMIC);
1030 	if (!urb) {
1035 	usb_fill_bulk_urb(urb, udev, usb_sndbulkpipe(udev, EP_DATA_OUT),
1040 	usb_anchor_urb(urb, &tx->submitted);
1042 	r = usb_submit_urb(urb, GFP_ATOMIC);
1044 		dev_dbg_f(zd_usb_dev(usb), "error submit urb %p %d\n", urb, r);
1045 		usb_unanchor_urb(urb);
1052 	usb_free_urb(urb);
1770 static void iowrite16v_urb_complete(struct urb *urb)
1772 	struct zd_usb *usb = urb->context;
1774 	if (urb->status && !usb->cmd_error)
1775 		usb->cmd_error = urb->status;
1778 			urb->actual_length != urb->transfer_buffer_length)
1785 	struct urb *urb = usb->urb_async_waiting;
1787 	if (!urb)
1793 		urb->transfer_flags |= URB_NO_INTERRUPT;
1795 	usb_anchor_urb(urb, &usb->submitted_cmds);
1796 	r = usb_submit_urb(urb, GFP_KERNEL);
1798 		usb_unanchor_urb(urb);
1806 	usb_free_urb(urb);
1866 	struct urb *urb;
1887 	urb = usb_alloc_urb(0, GFP_KERNEL);
1888 	if (!urb)
1909 		usb_fill_int_urb(urb, udev, usb_sndintpipe(udev, EP_REGS_OUT),
1913 		usb_fill_bulk_urb(urb, udev, usb_sndbulkpipe(udev, EP_REGS_OUT),
1916 	urb->transfer_flags |= URB_FREE_BUFFER;
1930 	usb->urb_async_waiting = urb;
1933 	usb_free_urb(urb);