188 	struct can_frame *frame = (struct can_frame *)skb->data;  in mscan_start_xmit()  local
226 	rtr = frame->can_id & CAN_RTR_FLAG;  in mscan_start_xmit()
229 	if (frame->can_id & CAN_EFF_FLAG) {  in mscan_start_xmit()
230 		can_id = (frame->can_id & CAN_EFF_MASK)  in mscan_start_xmit()
241 		can_id = (frame->can_id & CAN_SFF_MASK)  in mscan_start_xmit()
250 		u16 *payload = (u16 *)frame->data;  in mscan_start_xmit()
252 		for (i = 0; i < frame->can_dlc / 2; i++) {  in mscan_start_xmit()
257 		if (frame->can_dlc & 1)  in mscan_start_xmit()
258 			out_8(data, frame->data[frame->can_dlc - 1]);  in mscan_start_xmit()
261 	out_8(&regs->tx.dlr, frame->can_dlc);  in mscan_start_xmit()
292 static void mscan_get_rx_frame(struct net_device *dev, struct can_frame *frame)  in mscan_get_rx_frame()  argument
301 		frame->can_id = CAN_EFF_FLAG;  in mscan_get_rx_frame()
307 		frame->can_id = 0;  in mscan_get_rx_frame()
310 	frame->can_id |= can_id >> 1;  in mscan_get_rx_frame()
312 		frame->can_id |= CAN_RTR_FLAG;  in mscan_get_rx_frame()
314 	frame->can_dlc = get_can_dlc(in_8(&regs->rx.dlr) & 0xf);  in mscan_get_rx_frame()
316 	if (!(frame->can_id & CAN_RTR_FLAG)) {  in mscan_get_rx_frame()
318 		u16 *payload = (u16 *)frame->data;  in mscan_get_rx_frame()
320 		for (i = 0; i < frame->can_dlc / 2; i++) {  in mscan_get_rx_frame()
325 		if (frame->can_dlc & 1)  in mscan_get_rx_frame()
326 			frame->data[frame->can_dlc - 1] = in_8(data);  in mscan_get_rx_frame()
332 static void mscan_get_err_frame(struct net_device *dev, struct can_frame *frame,  in mscan_get_err_frame()  argument
341 	frame->can_id = CAN_ERR_FLAG;  in mscan_get_err_frame()
344 		frame->can_id |= CAN_ERR_CRTL;  in mscan_get_err_frame()
345 		frame->data[1] = CAN_ERR_CRTL_RX_OVERFLOW;  in mscan_get_err_frame()
349 		frame->data[1] = 0;  in mscan_get_err_frame()
354 		can_change_state(dev, frame,  in mscan_get_err_frame()
374 	frame->can_dlc = CAN_ERR_DLC;  in mscan_get_err_frame()
386 	struct can_frame *frame;  in mscan_rx_poll()  local
394 		skb = alloc_can_skb(dev, &frame);  in mscan_rx_poll()
404 			mscan_get_rx_frame(dev, frame);  in mscan_rx_poll()
406 			mscan_get_err_frame(dev, frame, canrflg);  in mscan_rx_poll()
409 		stats->rx_bytes += frame->can_dlc;  in mscan_rx_poll()