266 static inline void ican3_set_page(struct ican3_dev *mod, unsigned int page)  in ican3_set_page()  argument
269 	iowrite8(page, &mod->dpmctrl->window_address);  in ican3_set_page()
283 static int ican3_old_recv_msg(struct ican3_dev *mod, struct ican3_msg *msg)  in ican3_old_recv_msg()  argument
289 	ican3_set_page(mod, QUEUE_OLD_CONTROL);  in ican3_old_recv_msg()
290 	peer = ioread8(mod->dpm + MSYNC_PEER);  in ican3_old_recv_msg()
291 	locl = ioread8(mod->dpm + MSYNC_LOCL);  in ican3_old_recv_msg()
295 		netdev_dbg(mod->ndev, "no mbox for reading\n");  in ican3_old_recv_msg()
307 	ican3_set_page(mod, mbox_page);  in ican3_old_recv_msg()
308 	memcpy_fromio(msg, mod->dpm, sizeof(*msg));  in ican3_old_recv_msg()
316 	ican3_set_page(mod, QUEUE_OLD_CONTROL);  in ican3_old_recv_msg()
317 	iowrite8(locl, mod->dpm + MSYNC_LOCL);  in ican3_old_recv_msg()
328 static int ican3_old_send_msg(struct ican3_dev *mod, struct ican3_msg *msg)  in ican3_old_send_msg()  argument
334 	ican3_set_page(mod, QUEUE_OLD_CONTROL);  in ican3_old_send_msg()
335 	peer = ioread8(mod->dpm + MSYNC_PEER);  in ican3_old_send_msg()
336 	locl = ioread8(mod->dpm + MSYNC_LOCL);  in ican3_old_send_msg()
340 		netdev_err(mod->ndev, "no mbox for writing\n");  in ican3_old_send_msg()
349 	ican3_set_page(mod, mbox_page);  in ican3_old_send_msg()
350 	memcpy_toio(mod->dpm, msg, sizeof(*msg));  in ican3_old_send_msg()
356 	ican3_set_page(mod, QUEUE_OLD_CONTROL);  in ican3_old_send_msg()
357 	iowrite8(locl, mod->dpm + MSYNC_LOCL);  in ican3_old_send_msg()
365 static void ican3_init_new_host_interface(struct ican3_dev *mod)  in ican3_init_new_host_interface()  argument
372 	spin_lock_irqsave(&mod->lock, flags);  in ican3_init_new_host_interface()
375 	mod->rx_num = 0;  in ican3_init_new_host_interface()
376 	mod->rx_int = 0;  in ican3_init_new_host_interface()
379 	ican3_set_page(mod, QUEUE_TOHOST);  in ican3_init_new_host_interface()
380 	dst = mod->dpm;  in ican3_init_new_host_interface()
385 		desc.pointer = mod->free_page;  in ican3_init_new_host_interface()
393 		mod->free_page++;  in ican3_init_new_host_interface()
397 	ican3_set_page(mod, QUEUE_FROMHOST_MID);  in ican3_init_new_host_interface()
398 	dst = mod->dpm;  in ican3_init_new_host_interface()
401 	mod->tx_num = 0;  in ican3_init_new_host_interface()
406 		desc.pointer = mod->free_page;  in ican3_init_new_host_interface()
414 		mod->free_page++;  in ican3_init_new_host_interface()
418 	ican3_set_page(mod, QUEUE_FROMHOST_HIGH);  in ican3_init_new_host_interface()
419 	dst = mod->dpm;  in ican3_init_new_host_interface()
423 	desc.pointer = mod->free_page;  in ican3_init_new_host_interface()
425 	mod->free_page++;  in ican3_init_new_host_interface()
428 	ican3_set_page(mod, QUEUE_FROMHOST_LOW);  in ican3_init_new_host_interface()
429 	dst = mod->dpm;  in ican3_init_new_host_interface()
433 	desc.pointer = mod->free_page;  in ican3_init_new_host_interface()
435 	mod->free_page++;  in ican3_init_new_host_interface()
437 	spin_unlock_irqrestore(&mod->lock, flags);  in ican3_init_new_host_interface()
444 static void ican3_init_fast_host_interface(struct ican3_dev *mod)  in ican3_init_fast_host_interface()  argument
452 	spin_lock_irqsave(&mod->lock, flags);  in ican3_init_fast_host_interface()
455 	mod->fastrx_start = mod->free_page;  in ican3_init_fast_host_interface()
456 	mod->fastrx_num = 0;  in ican3_init_fast_host_interface()
472 		ican3_set_page(mod, mod->free_page);  in ican3_init_fast_host_interface()
475 		dst = mod->dpm + addr;  in ican3_init_fast_host_interface()
482 			mod->free_page++;  in ican3_init_fast_host_interface()
488 		mod->free_page++;  in ican3_init_fast_host_interface()
491 	mod->fasttx_start = mod->free_page;  in ican3_init_fast_host_interface()
492 	mod->fasttx_num = 0;  in ican3_init_fast_host_interface()
508 		ican3_set_page(mod, mod->free_page);  in ican3_init_fast_host_interface()
511 		dst = mod->dpm + addr;  in ican3_init_fast_host_interface()
518 			mod->free_page++;  in ican3_init_fast_host_interface()
522 	spin_unlock_irqrestore(&mod->lock, flags);  in ican3_init_fast_host_interface()
532 static int ican3_new_send_msg(struct ican3_dev *mod, struct ican3_msg *msg)  in ican3_new_send_msg()  argument
535 	void __iomem *desc_addr = mod->dpm + (mod->tx_num * sizeof(desc));  in ican3_new_send_msg()
538 	ican3_set_page(mod, QUEUE_FROMHOST_MID);  in ican3_new_send_msg()
542 		netdev_dbg(mod->ndev, "%s: no free buffers\n", __func__);  in ican3_new_send_msg()
547 	ican3_set_page(mod, desc.pointer);  in ican3_new_send_msg()
548 	memcpy_toio(mod->dpm, msg, sizeof(*msg));  in ican3_new_send_msg()
551 	ican3_set_page(mod, QUEUE_FROMHOST_MID);  in ican3_new_send_msg()
556 	mod->tx_num = (desc.control & DESC_WRAP) ? 0 : (mod->tx_num + 1);  in ican3_new_send_msg()
563 static int ican3_new_recv_msg(struct ican3_dev *mod, struct ican3_msg *msg)  in ican3_new_recv_msg()  argument
566 	void __iomem *desc_addr = mod->dpm + (mod->rx_num * sizeof(desc));  in ican3_new_recv_msg()
569 	ican3_set_page(mod, QUEUE_TOHOST);  in ican3_new_recv_msg()
573 		netdev_dbg(mod->ndev, "%s: no buffers to recv\n", __func__);  in ican3_new_recv_msg()
578 	ican3_set_page(mod, desc.pointer);  in ican3_new_recv_msg()
579 	memcpy_fromio(msg, mod->dpm, sizeof(*msg));  in ican3_new_recv_msg()
582 	ican3_set_page(mod, QUEUE_TOHOST);  in ican3_new_recv_msg()
587 	mod->rx_num = (desc.control & DESC_WRAP) ? 0 : (mod->rx_num + 1);  in ican3_new_recv_msg()
595 static int ican3_send_msg(struct ican3_dev *mod, struct ican3_msg *msg)  in ican3_send_msg()  argument
600 	spin_lock_irqsave(&mod->lock, flags);  in ican3_send_msg()
602 	if (mod->iftype == 0)  in ican3_send_msg()
603 		ret = ican3_old_send_msg(mod, msg);  in ican3_send_msg()
605 		ret = ican3_new_send_msg(mod, msg);  in ican3_send_msg()
607 	spin_unlock_irqrestore(&mod->lock, flags);  in ican3_send_msg()
611 static int ican3_recv_msg(struct ican3_dev *mod, struct ican3_msg *msg)  in ican3_recv_msg()  argument
616 	spin_lock_irqsave(&mod->lock, flags);  in ican3_recv_msg()
618 	if (mod->iftype == 0)  in ican3_recv_msg()
619 		ret = ican3_old_recv_msg(mod, msg);  in ican3_recv_msg()
621 		ret = ican3_new_recv_msg(mod, msg);  in ican3_recv_msg()
623 	spin_unlock_irqrestore(&mod->lock, flags);  in ican3_recv_msg()
631 static int ican3_msg_connect(struct ican3_dev *mod)  in ican3_msg_connect()  argument
639 	return ican3_send_msg(mod, &msg);  in ican3_msg_connect()
642 static int ican3_msg_disconnect(struct ican3_dev *mod)  in ican3_msg_disconnect()  argument
650 	return ican3_send_msg(mod, &msg);  in ican3_msg_disconnect()
653 static int ican3_msg_newhostif(struct ican3_dev *mod)  in ican3_msg_newhostif()  argument
663 	WARN_ON(mod->iftype != 0);  in ican3_msg_newhostif()
665 	ret = ican3_send_msg(mod, &msg);  in ican3_msg_newhostif()
670 	mod->iftype = 1;  in ican3_msg_newhostif()
674 static int ican3_msg_fasthostif(struct ican3_dev *mod)  in ican3_msg_fasthostif()  argument
684 	addr = DPM_PAGE_ADDR(mod->fastrx_start);  in ican3_msg_fasthostif()
691 	addr = DPM_PAGE_ADDR(mod->fasttx_start);  in ican3_msg_fasthostif()
698 	WARN_ON(mod->iftype != 1);  in ican3_msg_fasthostif()
700 	return ican3_send_msg(mod, &msg);  in ican3_msg_fasthostif()
707 static int ican3_set_id_filter(struct ican3_dev *mod, bool accept)  in ican3_set_id_filter()  argument
724 	ret = ican3_send_msg(mod, &msg);  in ican3_set_id_filter()
745 	return ican3_send_msg(mod, &msg);  in ican3_set_id_filter()
751 static int ican3_set_bus_state(struct ican3_dev *mod, bool on)  in ican3_set_bus_state()  argument
759 	return ican3_send_msg(mod, &msg);  in ican3_set_bus_state()
762 static int ican3_set_termination(struct ican3_dev *mod, bool on)  in ican3_set_termination()  argument
772 	return ican3_send_msg(mod, &msg);  in ican3_set_termination()
775 static int ican3_send_inquiry(struct ican3_dev *mod, u8 subspec)  in ican3_send_inquiry()  argument
785 	return ican3_send_msg(mod, &msg);  in ican3_send_inquiry()
788 static int ican3_set_buserror(struct ican3_dev *mod, u8 quota)  in ican3_set_buserror()  argument
798 	return ican3_send_msg(mod, &msg);  in ican3_set_buserror()
805 static void ican3_to_can_frame(struct ican3_dev *mod,  in ican3_to_can_frame()  argument
837 static void can_frame_to_ican3(struct ican3_dev *mod,  in can_frame_to_ican3()  argument
850 	if (mod->can.ctrlmode & CAN_CTRLMODE_ONE_SHOT)  in can_frame_to_ican3()
881 static void ican3_handle_idvers(struct ican3_dev *mod, struct ican3_msg *msg)  in ican3_handle_idvers()  argument
883 	netdev_dbg(mod->ndev, "IDVERS response: %s\n", msg->data);  in ican3_handle_idvers()
886 static void ican3_handle_msglost(struct ican3_dev *mod, struct ican3_msg *msg)  in ican3_handle_msglost()  argument
888 	struct net_device *dev = mod->ndev;  in ican3_handle_msglost()
899 		netdev_err(mod->ndev, "lost %d control messages\n", msg->data[0]);  in ican3_handle_msglost()
928 static int ican3_handle_cevtind(struct ican3_dev *mod, struct ican3_msg *msg)  in ican3_handle_cevtind()  argument
930 	struct net_device *dev = mod->ndev;  in ican3_handle_cevtind()
932 	enum can_state state = mod->can.state;  in ican3_handle_cevtind()
939 		netdev_err(mod->ndev, "unable to handle errors on non-SJA1000\n");  in ican3_handle_cevtind()
945 		netdev_err(mod->ndev, "error message too short\n");  in ican3_handle_cevtind()
967 		netdev_dbg(mod->ndev, "bus error interrupt\n");  in ican3_handle_cevtind()
971 			kfree_skb(skb_dequeue(&mod->echoq));  in ican3_handle_cevtind()
981 		ret = ican3_set_buserror(mod, 1);  in ican3_handle_cevtind()
983 			netdev_err(mod->ndev, "unable to re-enable bus-error\n");  in ican3_handle_cevtind()
988 		if (!(mod->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING))  in ican3_handle_cevtind()
998 		netdev_dbg(mod->ndev, "data overrun interrupt\n");  in ican3_handle_cevtind()
1007 		netdev_dbg(mod->ndev, "error warning + passive interrupt\n");  in ican3_handle_cevtind()
1011 			mod->can.can_stats.bus_off++;  in ican3_handle_cevtind()
1025 		mod->can.can_stats.bus_error++;  in ican3_handle_cevtind()
1051 	if (state != mod->can.state && (state == CAN_STATE_ERROR_WARNING ||  in ican3_handle_cevtind()
1055 			mod->can.can_stats.error_warning++;  in ican3_handle_cevtind()
1060 			mod->can.can_stats.error_passive++;  in ican3_handle_cevtind()
1070 	mod->can.state = state;  in ican3_handle_cevtind()
1075 static void ican3_handle_inquiry(struct ican3_dev *mod, struct ican3_msg *msg)  in ican3_handle_inquiry()  argument
1080 		mod->bec.rxerr = msg->data[5];  in ican3_handle_inquiry()
1081 		mod->bec.txerr = msg->data[6];  in ican3_handle_inquiry()
1082 		complete(&mod->buserror_comp);  in ican3_handle_inquiry()
1085 		mod->termination_enabled = msg->data[6] & HWCONF_TERMINATE_ON;  in ican3_handle_inquiry()
1086 		complete(&mod->termination_comp);  in ican3_handle_inquiry()
1089 		netdev_err(mod->ndev, "received an unknown inquiry response\n");  in ican3_handle_inquiry()
1094 static void ican3_handle_unknown_message(struct ican3_dev *mod,  in ican3_handle_unknown_message()  argument
1097 	netdev_warn(mod->ndev, "received unknown message: spec 0x%.2x length %d\n",  in ican3_handle_unknown_message()
1104 static void ican3_handle_message(struct ican3_dev *mod, struct ican3_msg *msg)  in ican3_handle_message()  argument
1106 	netdev_dbg(mod->ndev, "%s: modno %d spec 0x%.2x len %d bytes\n", __func__,  in ican3_handle_message()
1107 			   mod->num, msg->spec, le16_to_cpu(msg->len));  in ican3_handle_message()
1111 		ican3_handle_idvers(mod, msg);  in ican3_handle_message()
1115 		ican3_handle_msglost(mod, msg);  in ican3_handle_message()
1118 		ican3_handle_cevtind(mod, msg);  in ican3_handle_message()
1121 		ican3_handle_inquiry(mod, msg);  in ican3_handle_message()
1124 		ican3_handle_unknown_message(mod, msg);  in ican3_handle_message()
1133 static void ican3_put_echo_skb(struct ican3_dev *mod, struct sk_buff *skb)  in ican3_put_echo_skb()  argument
1140 	skb_queue_tail(&mod->echoq, skb);  in ican3_put_echo_skb()
1143 static unsigned int ican3_get_echo_skb(struct ican3_dev *mod)  in ican3_get_echo_skb()  argument
1145 	struct sk_buff *skb = skb_dequeue(&mod->echoq);  in ican3_get_echo_skb()
1151 		netdev_err(mod->ndev, "BUG: echo skb not occupied\n");  in ican3_get_echo_skb()
1167 	skb->dev = mod->ndev;  in ican3_get_echo_skb()
1181 static bool ican3_echo_skb_matches(struct ican3_dev *mod, struct sk_buff *skb)  in ican3_echo_skb_matches()  argument
1184 	struct sk_buff *echo_skb = skb_peek(&mod->echoq);  in ican3_echo_skb_matches()
1205 static bool ican3_txok(struct ican3_dev *mod)  in ican3_txok()  argument
1211 	if (skb_queue_len(&mod->echoq) >= ICAN3_TX_BUFFERS)  in ican3_txok()
1215 	ican3_set_page(mod, mod->fasttx_start + (mod->fasttx_num / 16));  in ican3_txok()
1216 	desc = mod->dpm + ((mod->fasttx_num % 16) * sizeof(*desc));  in ican3_txok()
1231 static int ican3_recv_skb(struct ican3_dev *mod)  in ican3_recv_skb()  argument
1233 	struct net_device *ndev = mod->ndev;  in ican3_recv_skb()
1241 	spin_lock_irqsave(&mod->lock, flags);  in ican3_recv_skb()
1244 	ican3_set_page(mod, mod->fastrx_start + (mod->fastrx_num / 16));  in ican3_recv_skb()
1245 	desc_addr = mod->dpm + ((mod->fastrx_num % 16) * sizeof(desc));  in ican3_recv_skb()
1248 	spin_unlock_irqrestore(&mod->lock, flags);  in ican3_recv_skb()
1262 	ican3_to_can_frame(mod, &desc, cf);  in ican3_recv_skb()
1274 	if (ican3_echo_skb_matches(mod, skb)) {  in ican3_recv_skb()
1276 		stats->tx_bytes += ican3_get_echo_skb(mod);  in ican3_recv_skb()
1290 	spin_lock_irqsave(&mod->lock, flags);  in ican3_recv_skb()
1292 	ican3_set_page(mod, mod->fastrx_start + (mod->fastrx_num / 16));  in ican3_recv_skb()
1296 	mod->fastrx_num = (desc.control & DESC_WRAP) ? 0  in ican3_recv_skb()
1297 						     : (mod->fastrx_num + 1);  in ican3_recv_skb()
1300 	spin_unlock_irqrestore(&mod->lock, flags);  in ican3_recv_skb()
1306 	struct ican3_dev *mod = container_of(napi, struct ican3_dev, napi);  in ican3_napi()  local
1314 		ret = ican3_recv_msg(mod, &msg);  in ican3_napi()
1318 		ican3_handle_message(mod, &msg);  in ican3_napi()
1323 		ret = ican3_recv_skb(mod);  in ican3_napi()
1335 	spin_lock_irqsave(&mod->lock, flags);  in ican3_napi()
1338 	if (netif_queue_stopped(mod->ndev) && ican3_txok(mod))  in ican3_napi()
1339 		netif_wake_queue(mod->ndev);  in ican3_napi()
1341 	spin_unlock_irqrestore(&mod->lock, flags);  in ican3_napi()
1344 	iowrite8(1 << mod->num, &mod->ctrl->int_enable);  in ican3_napi()
1350 	struct ican3_dev *mod = dev_id;  in ican3_irq()  local
1357 	stat = ioread8(&mod->ctrl->int_disable) & (1 << mod->num);  in ican3_irq()
1358 	if (stat == (1 << mod->num))  in ican3_irq()
1362 	ioread8(&mod->dpmctrl->interrupt);  in ican3_irq()
1365 	iowrite8(1 << mod->num, &mod->ctrl->int_disable);  in ican3_irq()
1366 	napi_schedule(&mod->napi);  in ican3_irq()
1379 static int ican3_reset_module(struct ican3_dev *mod)  in ican3_reset_module()  argument
1385 	iowrite8(1 << mod->num, &mod->ctrl->int_disable);  in ican3_reset_module()
1388 	mod->free_page = DPM_FREE_START;  in ican3_reset_module()
1390 	ican3_set_page(mod, QUEUE_OLD_CONTROL);  in ican3_reset_module()
1391 	runold = ioread8(mod->dpm + TARGET_RUNNING);  in ican3_reset_module()
1394 	iowrite8(0x00, &mod->dpmctrl->hwreset);  in ican3_reset_module()
1399 		ican3_set_page(mod, QUEUE_OLD_CONTROL);  in ican3_reset_module()
1400 		runnew = ioread8(mod->dpm + TARGET_RUNNING);  in ican3_reset_module()
1407 	netdev_err(mod->ndev, "failed to reset CAN module\n");  in ican3_reset_module()
1411 static void ican3_shutdown_module(struct ican3_dev *mod)  in ican3_shutdown_module()  argument
1413 	ican3_msg_disconnect(mod);  in ican3_shutdown_module()
1414 	ican3_reset_module(mod);  in ican3_shutdown_module()
1420 static int ican3_startup_module(struct ican3_dev *mod)  in ican3_startup_module()  argument
1424 	ret = ican3_reset_module(mod);  in ican3_startup_module()
1426 		netdev_err(mod->ndev, "unable to reset module\n");  in ican3_startup_module()
1431 	iowrite8(1 << mod->num, &mod->ctrl->int_enable);  in ican3_startup_module()
1433 	ret = ican3_msg_connect(mod);  in ican3_startup_module()
1435 		netdev_err(mod->ndev, "unable to connect to module\n");  in ican3_startup_module()
1439 	ican3_init_new_host_interface(mod);  in ican3_startup_module()
1440 	ret = ican3_msg_newhostif(mod);  in ican3_startup_module()
1442 		netdev_err(mod->ndev, "unable to switch to new-style interface\n");  in ican3_startup_module()
1447 	ret = ican3_set_termination(mod, true);  in ican3_startup_module()
1449 		netdev_err(mod->ndev, "unable to enable termination\n");  in ican3_startup_module()
1454 	ret = ican3_set_buserror(mod, 1);  in ican3_startup_module()
1456 		netdev_err(mod->ndev, "unable to set bus-error\n");  in ican3_startup_module()
1460 	ican3_init_fast_host_interface(mod);  in ican3_startup_module()
1461 	ret = ican3_msg_fasthostif(mod);  in ican3_startup_module()
1463 		netdev_err(mod->ndev, "unable to switch to fast host interface\n");  in ican3_startup_module()
1467 	ret = ican3_set_id_filter(mod, true);  in ican3_startup_module()
1469 		netdev_err(mod->ndev, "unable to set acceptance filter\n");  in ican3_startup_module()
1482 	struct ican3_dev *mod = netdev_priv(ndev);  in ican3_open()  local
1488 		netdev_err(mod->ndev, "unable to start CAN layer\n");  in ican3_open()
1493 	ret = ican3_set_bus_state(mod, true);  in ican3_open()
1495 		netdev_err(mod->ndev, "unable to set bus-on\n");  in ican3_open()
1501 	mod->can.state = CAN_STATE_ERROR_ACTIVE;  in ican3_open()
1509 	struct ican3_dev *mod = netdev_priv(ndev);  in ican3_stop()  local
1514 	mod->can.state = CAN_STATE_STOPPED;  in ican3_stop()
1517 	ret = ican3_set_bus_state(mod, false);  in ican3_stop()
1519 		netdev_err(mod->ndev, "unable to set bus-off\n");  in ican3_stop()
1524 	skb_queue_purge(&mod->echoq);  in ican3_stop()
1533 	struct ican3_dev *mod = netdev_priv(ndev);  in ican3_xmit()  local
1542 	spin_lock_irqsave(&mod->lock, flags);  in ican3_xmit()
1545 	if (!ican3_txok(mod)) {  in ican3_xmit()
1546 		netdev_err(mod->ndev, "BUG: no free descriptors\n");  in ican3_xmit()
1547 		spin_unlock_irqrestore(&mod->lock, flags);  in ican3_xmit()
1552 	ican3_set_page(mod, mod->fasttx_start + (mod->fasttx_num / 16));  in ican3_xmit()
1553 	desc_addr = mod->dpm + ((mod->fasttx_num % 16) * sizeof(desc));  in ican3_xmit()
1558 	can_frame_to_ican3(mod, cf, &desc);  in ican3_xmit()
1566 	ican3_put_echo_skb(mod, skb);  in ican3_xmit()
1577 	iowrite8(0x01, &mod->dpmctrl->interrupt);  in ican3_xmit()
1583 	mod->fasttx_num = (desc.control & DESC_WRAP) ? 0  in ican3_xmit()
1584 						     : (mod->fasttx_num + 1);  in ican3_xmit()
1587 	if (!ican3_txok(mod))  in ican3_xmit()
1590 	spin_unlock_irqrestore(&mod->lock, flags);  in ican3_xmit()
1626 	struct ican3_dev *mod = netdev_priv(ndev);  in ican3_set_bittiming()  local
1627 	struct can_bittiming *bt = &mod->can.bittiming;  in ican3_set_bittiming()
1634 	if (mod->can.ctrlmode & CAN_CTRLMODE_3_SAMPLES)  in ican3_set_bittiming()
1645 	return ican3_send_msg(mod, &msg);  in ican3_set_bittiming()
1650 	struct ican3_dev *mod = netdev_priv(ndev);  in ican3_set_mode()  local
1657 	ret = ican3_set_bus_state(mod, true);  in ican3_set_mode()
1664 	mod->can.state = CAN_STATE_ERROR_ACTIVE;  in ican3_set_mode()
1675 	struct ican3_dev *mod = netdev_priv(ndev);  in ican3_get_berr_counter()  local
1678 	ret = ican3_send_inquiry(mod, INQUIRY_STATUS);  in ican3_get_berr_counter()
1682 	if (!wait_for_completion_timeout(&mod->buserror_comp, HZ)) {  in ican3_get_berr_counter()
1683 		netdev_info(mod->ndev, "%s timed out\n", __func__);  in ican3_get_berr_counter()
1687 	bec->rxerr = mod->bec.rxerr;  in ican3_get_berr_counter()
1688 	bec->txerr = mod->bec.txerr;  in ican3_get_berr_counter()
1700 	struct ican3_dev *mod = netdev_priv(to_net_dev(dev));  in ican3_sysfs_show_term()  local
1703 	ret = ican3_send_inquiry(mod, INQUIRY_TERMINATION);  in ican3_sysfs_show_term()
1707 	if (!wait_for_completion_timeout(&mod->termination_comp, HZ)) {  in ican3_sysfs_show_term()
1708 		netdev_info(mod->ndev, "%s timed out\n", __func__);  in ican3_sysfs_show_term()
1712 	return snprintf(buf, PAGE_SIZE, "%u\n", mod->termination_enabled);  in ican3_sysfs_show_term()
1719 	struct ican3_dev *mod = netdev_priv(to_net_dev(dev));  in ican3_sysfs_set_term()  local
1726 	ret = ican3_set_termination(mod, enable);  in ican3_sysfs_set_term()
1753 	struct ican3_dev *mod;  in ican3_probe()  local
1768 	ndev = alloc_candev(sizeof(*mod), 0);  in ican3_probe()
1776 	mod = netdev_priv(ndev);  in ican3_probe()
1777 	mod->ndev = ndev;  in ican3_probe()
1778 	mod->num = pdata->modno;  in ican3_probe()
1779 	netif_napi_add(ndev, &mod->napi, ican3_napi, ICAN3_RX_BUFFERS);  in ican3_probe()
1780 	skb_queue_head_init(&mod->echoq);  in ican3_probe()
1781 	spin_lock_init(&mod->lock);  in ican3_probe()
1782 	init_completion(&mod->termination_comp);  in ican3_probe()
1783 	init_completion(&mod->buserror_comp);  in ican3_probe()
1789 	mod->free_page = DPM_FREE_START;  in ican3_probe()
1795 	mod->can.clock.freq = ICAN3_CAN_CLOCK;  in ican3_probe()
1796 	mod->can.bittiming_const = &ican3_bittiming_const;  in ican3_probe()
1797 	mod->can.do_set_bittiming = ican3_set_bittiming;  in ican3_probe()
1798 	mod->can.do_set_mode = ican3_set_mode;  in ican3_probe()
1799 	mod->can.do_get_berr_counter = ican3_get_berr_counter;  in ican3_probe()
1800 	mod->can.ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES  in ican3_probe()
1805 	mod->irq = platform_get_irq(pdev, 0);  in ican3_probe()
1806 	if (mod->irq < 0) {  in ican3_probe()
1812 	ndev->irq = mod->irq;  in ican3_probe()
1822 	mod->dpm = ioremap(res->start, resource_size(res));  in ican3_probe()
1823 	if (!mod->dpm) {  in ican3_probe()
1829 	mod->dpmctrl = mod->dpm + DPM_PAGE_SIZE;  in ican3_probe()
1839 	mod->ctrl = ioremap(res->start, resource_size(res));  in ican3_probe()
1840 	if (!mod->ctrl) {  in ican3_probe()
1847 	iowrite8(1 << mod->num, &mod->ctrl->int_disable);  in ican3_probe()
1848 	ret = request_irq(mod->irq, ican3_irq, IRQF_SHARED, DRV_NAME, mod);  in ican3_probe()
1855 	napi_enable(&mod->napi);  in ican3_probe()
1856 	ret = ican3_startup_module(mod);  in ican3_probe()
1873 	napi_disable(&mod->napi);  in ican3_probe()
1874 	iowrite8(1 << mod->num, &mod->ctrl->int_disable);  in ican3_probe()
1875 	free_irq(mod->irq, mod);  in ican3_probe()
1877 	iounmap(mod->ctrl);  in ican3_probe()
1879 	iounmap(mod->dpm);  in ican3_probe()
1889 	struct ican3_dev *mod = netdev_priv(ndev);  in ican3_remove()  local
1893 	napi_disable(&mod->napi);  in ican3_remove()
1894 	iowrite8(1 << mod->num, &mod->ctrl->int_disable);  in ican3_remove()
1895 	free_irq(mod->irq, mod);  in ican3_remove()
1898 	ican3_shutdown_module(mod);  in ican3_remove()
1901 	iounmap(mod->ctrl);  in ican3_remove()
1902 	iounmap(mod->dpm);  in ican3_remove()