115 static int net_open(struct net_device *dev);
116 static netdev_tx_t net_send_packet(struct sk_buff *skb, struct net_device *dev);
118 static void set_multicast_list(struct net_device *dev);
119 static void net_rx(struct net_device *dev);
120 static int net_close(struct net_device *dev);
121 static struct net_device_stats *net_get_stats(struct net_device *dev);
122 static int set_mac_address(struct net_device *dev, void *addr);
126 readreg_io(struct net_device *dev, int portno)  in readreg_io()  argument
128 	nubus_writew(swab16(portno), dev->base_addr + ADD_PORT);  in readreg_io()
129 	return swab16(nubus_readw(dev->base_addr + DATA_PORT));  in readreg_io()
133 writereg_io(struct net_device *dev, int portno, int value)  in writereg_io()  argument
135 	nubus_writew(swab16(portno), dev->base_addr + ADD_PORT);  in writereg_io()
136 	nubus_writew(swab16(value), dev->base_addr + DATA_PORT);  in writereg_io()
141 readreg(struct net_device *dev, int portno)  in readreg()  argument
143 	return swab16(nubus_readw(dev->mem_start + portno));  in readreg()
147 writereg(struct net_device *dev, int portno, int value)  in writereg()  argument
149 	nubus_writew(swab16(value), dev->mem_start + portno);  in writereg()
166 	struct net_device *dev;  in mac89x0_device_probe()  local
175 	dev = alloc_etherdev(sizeof(struct net_local));  in mac89x0_device_probe()
176 	if (!dev)  in mac89x0_device_probe()
204 	SET_NETDEV_DEV(dev, &pdev->dev);  in mac89x0_device_probe()
207 	lp = netdev_priv(dev);  in mac89x0_device_probe()
212 	dev->base_addr = ioaddr;  in mac89x0_device_probe()
213 	dev->mem_start = (unsigned long)  in mac89x0_device_probe()
215 	dev->mem_end = dev->mem_start + 0x1000;  in mac89x0_device_probe()
218 	writereg_io(dev, PP_BusCTL, MEMORY_ON);  in mac89x0_device_probe()
221 	rev_type = readreg(dev, PRODUCT_ID_ADD);  in mac89x0_device_probe()
233 	netif_dbg(lp, drv, dev, "%s", version);  in mac89x0_device_probe()
238 		lp->chip_revision, dev->base_addr);  in mac89x0_device_probe()
241 	if ((readreg(dev, PP_SelfST) & (EEPROM_PRESENT | EEPROM_OK)) == 0) {  in mac89x0_device_probe()
249 			unsigned short s = readreg(dev, PP_IA + i);  in mac89x0_device_probe()
253 		eth_hw_addr_set(dev, addr);  in mac89x0_device_probe()
256 	dev->irq = SLOT2IRQ(slot);  in mac89x0_device_probe()
260 	pr_info("MAC %pM, IRQ %d\n", dev->dev_addr, dev->irq);  in mac89x0_device_probe()
262 	dev->netdev_ops		= &mac89x0_netdev_ops;  in mac89x0_device_probe()
264 	err = register_netdev(dev);  in mac89x0_device_probe()
268 	platform_set_drvdata(pdev, dev);  in mac89x0_device_probe()
271 	nubus_writew(0, dev->base_addr + ADD_PORT);  in mac89x0_device_probe()
273 	free_netdev(dev);  in mac89x0_device_probe()
285 net_open(struct net_device *dev)  in net_open()  argument
287 	struct net_local *lp = netdev_priv(dev);  in net_open()
291 	writereg(dev, PP_BusCTL, readreg(dev, PP_BusCTL) & ~ENABLE_IRQ);  in net_open()
294 	if (request_irq(dev->irq, net_interrupt, 0, "cs89x0", dev))  in net_open()
299 		writereg(dev, PP_CS8900_ISAINT, 0);  in net_open()
301 		writereg(dev, PP_CS8920_ISAINT, 0);  in net_open()
305 		writereg(dev, PP_IA+i*2, dev->dev_addr[i*2] | (dev->dev_addr[i*2+1] << 8));  in net_open()
308 	writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) | SERIAL_RX_ON | SERIAL_TX_ON);  in net_open()
312 	writereg(dev, PP_RxCTL, DEF_RX_ACCEPT);  in net_open()
316 	writereg(dev, PP_RxCFG, lp->curr_rx_cfg);  in net_open()
318 	writereg(dev, PP_TxCFG, TX_LOST_CRS_ENBL | TX_SQE_ERROR_ENBL | TX_OK_ENBL |  in net_open()
321 	writereg(dev, PP_BufCFG, READY_FOR_TX_ENBL | RX_MISS_COUNT_OVRFLOW_ENBL |  in net_open()
325 	writereg(dev, PP_BusCTL, readreg(dev, PP_BusCTL) | ENABLE_IRQ);  in net_open()
326 	netif_start_queue(dev);  in net_open()
331 net_send_packet(struct sk_buff *skb, struct net_device *dev)  in net_send_packet()  argument
333 	struct net_local *lp = netdev_priv(dev);  in net_send_packet()
336 	netif_dbg(lp, tx_queued, dev, "sent %d byte packet of type %x\n",  in net_send_packet()
344 	netif_stop_queue(dev);  in net_send_packet()
347 	writereg(dev, PP_TxCMD, lp->send_cmd);  in net_send_packet()
348 	writereg(dev, PP_TxLength, skb->len);  in net_send_packet()
351 	if ((readreg(dev, PP_BusST) & READY_FOR_TX_NOW) == 0) {  in net_send_packet()
359 	skb_copy_from_linear_data(skb, (void *)(dev->mem_start + PP_TxFrame),  in net_send_packet()
372 	struct net_device *dev = dev_id;  in net_interrupt()  local
376 	ioaddr = dev->base_addr;  in net_interrupt()
377 	lp = netdev_priv(dev);  in net_interrupt()
386 	while ((status = swab16(nubus_readw(dev->base_addr + ISQ_PORT)))) {  in net_interrupt()
387 		netif_dbg(lp, intr, dev, "status=%04x\n", status);  in net_interrupt()
391 			net_rx(dev);  in net_interrupt()
394 			dev->stats.tx_packets++;  in net_interrupt()
395 			netif_wake_queue(dev);  in net_interrupt()
397 				dev->stats.tx_errors++;  in net_interrupt()
399 				dev->stats.tx_carrier_errors++;  in net_interrupt()
401 				dev->stats.tx_heartbeat_errors++;  in net_interrupt()
403 				dev->stats.tx_window_errors++;  in net_interrupt()
405 				dev->stats.tx_aborted_errors++;  in net_interrupt()
414 				netif_wake_queue(dev);  in net_interrupt()
417 				netif_dbg(lp, tx_err, dev, "transmit underrun\n");  in net_interrupt()
424 			dev->stats.rx_missed_errors += (status >> 6);  in net_interrupt()
427 			dev->stats.collisions += (status >> 6);  in net_interrupt()
436 net_rx(struct net_device *dev)  in net_rx()  argument
438 	struct net_local *lp = netdev_priv(dev);  in net_rx()
442 	status = readreg(dev, PP_RxStatus);  in net_rx()
444 		dev->stats.rx_errors++;  in net_rx()
446 				dev->stats.rx_length_errors++;  in net_rx()
448 				dev->stats.rx_length_errors++;  in net_rx()
452 			dev->stats.rx_crc_errors++;  in net_rx()
454 				dev->stats.rx_frame_errors++;  in net_rx()
458 	length = readreg(dev, PP_RxLength);  in net_rx()
462 		dev->stats.rx_dropped++;  in net_rx()
467 	skb_copy_to_linear_data(skb, (void *)(dev->mem_start + PP_RxFrame),  in net_rx()
470 	netif_dbg(lp, rx_status, dev, "received %d byte packet of type %x\n",  in net_rx()
474         skb->protocol=eth_type_trans(skb,dev);  in net_rx()
476 	dev->stats.rx_packets++;  in net_rx()
477 	dev->stats.rx_bytes += length;  in net_rx()
482 net_close(struct net_device *dev)  in net_close()  argument
485 	writereg(dev, PP_RxCFG, 0);  in net_close()
486 	writereg(dev, PP_TxCFG, 0);  in net_close()
487 	writereg(dev, PP_BufCFG, 0);  in net_close()
488 	writereg(dev, PP_BusCTL, 0);  in net_close()
490 	netif_stop_queue(dev);  in net_close()
492 	free_irq(dev->irq, dev);  in net_close()
503 net_get_stats(struct net_device *dev)  in net_get_stats()  argument
509 	dev->stats.rx_missed_errors += (readreg(dev, PP_RxMiss) >> 6);  in net_get_stats()
510 	dev->stats.collisions += (readreg(dev, PP_TxCol) >> 6);  in net_get_stats()
513 	return &dev->stats;  in net_get_stats()
516 static void set_multicast_list(struct net_device *dev)  in set_multicast_list()  argument
518 	struct net_local *lp = netdev_priv(dev);  in set_multicast_list()
520 	if(dev->flags&IFF_PROMISC)  in set_multicast_list()
523 	} else if ((dev->flags & IFF_ALLMULTI) || !netdev_mc_empty(dev)) {  in set_multicast_list()
531 	writereg(dev, PP_RxCTL, DEF_RX_ACCEPT | lp->rx_mode);  in set_multicast_list()
534 	writereg(dev, PP_RxCFG, lp->curr_rx_cfg |  in set_multicast_list()
539 static int set_mac_address(struct net_device *dev, void *addr)  in set_mac_address()  argument
547 	eth_hw_addr_set(dev, saddr->sa_data);  in set_mac_address()
548 	netdev_info(dev, "Setting MAC address to %pM\n", dev->dev_addr);  in set_mac_address()
552 		writereg(dev, PP_IA+i*2, dev->dev_addr[i*2] | (dev->dev_addr[i*2+1] << 8));  in set_mac_address()
561 	struct net_device *dev = platform_get_drvdata(pdev);  in mac89x0_device_remove()  local
563 	unregister_netdev(dev);  in mac89x0_device_remove()
564 	nubus_writew(0, dev->base_addr + ADD_PORT);  in mac89x0_device_remove()
565 	free_netdev(dev);  in mac89x0_device_remove()