113 static void xircom_up(struct xircom_private *card);
118 static void investigate_read_descriptor(struct net_device *dev,struct xircom_private *card, int des…
119 static void investigate_write_descriptor(struct net_device *dev, struct xircom_private *card, int d…
120 static void read_mac_address(struct xircom_private *card);
121 static void transceiver_voodoo(struct xircom_private *card);
122 static void initialize_card(struct xircom_private *card);
123 static void trigger_transmit(struct xircom_private *card);
124 static void trigger_receive(struct xircom_private *card);
125 static void setup_descriptors(struct xircom_private *card);
126 static void remove_descriptors(struct xircom_private *card);
127 static int link_status_changed(struct xircom_private *card);
128 static void activate_receiver(struct xircom_private *card);
129 static void deactivate_receiver(struct xircom_private *card);
130 static void activate_transmitter(struct xircom_private *card);
131 static void deactivate_transmitter(struct xircom_private *card);
132 static void enable_transmit_interrupt(struct xircom_private *card);
133 static void enable_receive_interrupt(struct xircom_private *card);
134 static void enable_link_interrupt(struct xircom_private *card);
135 static void disable_all_interrupts(struct xircom_private *card);
136 static int link_status(struct xircom_private *card);
313 	struct xircom_private *card = netdev_priv(dev);  in xircom_remove()  local
317 	pci_iounmap(pdev, card->ioaddr);  in xircom_remove()
318 	dma_free_coherent(d, 8192, card->tx_buffer, card->tx_dma_handle);  in xircom_remove()
319 	dma_free_coherent(d, 8192, card->rx_buffer, card->rx_dma_handle);  in xircom_remove()
328 	struct xircom_private *card = netdev_priv(dev);  in xircom_interrupt()  local
329 	void __iomem *ioaddr = card->ioaddr;  in xircom_interrupt()
333 	spin_lock(&card->lock);  in xircom_interrupt()
339 		 card->tx_buffer[0], card->tx_buffer[4]);  in xircom_interrupt()
341 		 card->rx_buffer[0], card->rx_buffer[4]);  in xircom_interrupt()
345 		spin_unlock(&card->lock);  in xircom_interrupt()
349 	if (link_status_changed(card)) {  in xircom_interrupt()
352 		newlink = link_status(card);  in xircom_interrupt()
368 		investigate_write_descriptor(dev,card,i,bufferoffsets[i]);  in xircom_interrupt()
370 		investigate_read_descriptor(dev,card,i,bufferoffsets[i]);  in xircom_interrupt()
372 	spin_unlock(&card->lock);  in xircom_interrupt()
379 	struct xircom_private *card;  in xircom_start_xmit()  local
384 	card = netdev_priv(dev);  in xircom_start_xmit()
385 	spin_lock_irqsave(&card->lock,flags);  in xircom_start_xmit()
389 		investigate_write_descriptor(dev,card,desc,bufferoffsets[desc]);  in xircom_start_xmit()
392 	nextdescriptor = (card->transmit_used +1) % (NUMDESCRIPTORS);  in xircom_start_xmit()
393 	desc = card->transmit_used;  in xircom_start_xmit()
396 	if (card->tx_buffer[4*desc]==0) {  in xircom_start_xmit()
400 			memset(&card->tx_buffer[bufferoffsets[desc]/4],0,1536);  in xircom_start_xmit()
402 				  &(card->tx_buffer[bufferoffsets[desc] / 4]),  in xircom_start_xmit()
407 			card->tx_buffer[4*desc+1] = cpu_to_le32(skb->len);  in xircom_start_xmit()
409 				card->tx_buffer[4*desc+1] |= cpu_to_le32(1<<25);    in xircom_start_xmit()
411 			card->tx_buffer[4*desc+1] |= cpu_to_le32(0xF0000000);  in xircom_start_xmit()
413 			card->tx_skb[desc] = skb;  in xircom_start_xmit()
417 			card->tx_buffer[4*desc] = cpu_to_le32(0x80000000);  in xircom_start_xmit()
418 			trigger_transmit(card);  in xircom_start_xmit()
419 			if (card->tx_buffer[nextdescriptor*4] & cpu_to_le32(0x8000000)) {  in xircom_start_xmit()
423 			card->transmit_used = nextdescriptor;  in xircom_start_xmit()
424 			spin_unlock_irqrestore(&card->lock,flags);  in xircom_start_xmit()
430 	spin_unlock_irqrestore(&card->lock,flags);  in xircom_start_xmit()
431 	trigger_transmit(card);  in xircom_start_xmit()
458 	struct xircom_private *card;  in xircom_close()  local
461 	card = netdev_priv(dev);  in xircom_close()
465 	spin_lock_irqsave(&card->lock,flags);  in xircom_close()
467 	disable_all_interrupts(card);  in xircom_close()
470 	deactivate_receiver(card);  in xircom_close()
471 	deactivate_transmitter(card);  in xircom_close()
473 	remove_descriptors(card);  in xircom_close()
475 	spin_unlock_irqrestore(&card->lock,flags);  in xircom_close()
477 	card->open = 0;  in xircom_close()
478 	free_irq(card->pdev->irq, dev);  in xircom_close()
498 static void initialize_card(struct xircom_private *card)  in initialize_card()  argument
500 	void __iomem *ioaddr = card->ioaddr;  in initialize_card()
504 	spin_lock_irqsave(&card->lock, flags);  in initialize_card()
523 	disable_all_interrupts(card);  in initialize_card()
524 	deactivate_receiver(card);  in initialize_card()
525 	deactivate_transmitter(card);  in initialize_card()
527 	spin_unlock_irqrestore(&card->lock, flags);  in initialize_card()
536 static void trigger_transmit(struct xircom_private *card)  in trigger_transmit()  argument
538 	void __iomem *ioaddr = card->ioaddr;  in trigger_transmit()
550 static void trigger_receive(struct xircom_private *card)  in trigger_receive()  argument
552 	void __iomem *ioaddr = card->ioaddr;  in trigger_receive()
561 static void setup_descriptors(struct xircom_private *card)  in setup_descriptors()  argument
563 	void __iomem *ioaddr = card->ioaddr;  in setup_descriptors()
567 	BUG_ON(card->rx_buffer == NULL);  in setup_descriptors()
568 	BUG_ON(card->tx_buffer == NULL);  in setup_descriptors()
571 	memset(card->rx_buffer, 0, 128);	/* clear the descriptors */  in setup_descriptors()
575 		card->rx_buffer[i*4 + 0] = cpu_to_le32(0x80000000);  in setup_descriptors()
577 		card->rx_buffer[i*4 + 1] = cpu_to_le32(1536);  in setup_descriptors()
579 			card->rx_buffer[i*4 + 1] |= cpu_to_le32(1 << 25);  in setup_descriptors()
584 		address = card->rx_dma_handle;  in setup_descriptors()
585 		card->rx_buffer[i*4 + 2] = cpu_to_le32(address + bufferoffsets[i]);  in setup_descriptors()
587 		card->rx_buffer[i*4 + 3] = 0;  in setup_descriptors()
592 	address = card->rx_dma_handle;  in setup_descriptors()
597 	memset(card->tx_buffer, 0, 128);	/* clear the descriptors */  in setup_descriptors()
601 		card->tx_buffer[i*4 + 0] = 0x00000000;  in setup_descriptors()
603 		card->tx_buffer[i*4 + 1] = cpu_to_le32(1536);  in setup_descriptors()
605 			card->tx_buffer[i*4 + 1] |= cpu_to_le32(1 << 25);  in setup_descriptors()
609 		address = card->tx_dma_handle;  in setup_descriptors()
610 		card->tx_buffer[i*4 + 2] = cpu_to_le32(address + bufferoffsets[i]);  in setup_descriptors()
612 		card->tx_buffer[i*4 + 3] = 0;  in setup_descriptors()
617 	address = card->tx_dma_handle;  in setup_descriptors()
625 static void remove_descriptors(struct xircom_private *card)  in remove_descriptors()  argument
627 	void __iomem *ioaddr = card->ioaddr;  in remove_descriptors()
641 static int link_status_changed(struct xircom_private *card)  in link_status_changed()  argument
643 	void __iomem *ioaddr = card->ioaddr;  in link_status_changed()
663 static int transmit_active(struct xircom_private *card)  in transmit_active()  argument
665 	void __iomem *ioaddr = card->ioaddr;  in transmit_active()
677 static int receive_active(struct xircom_private *card)  in receive_active()  argument
679 	void __iomem *ioaddr = card->ioaddr;  in receive_active()
697 static void activate_receiver(struct xircom_private *card)  in activate_receiver()  argument
699 	void __iomem *ioaddr = card->ioaddr;  in activate_receiver()
707 	if ((val&2) && (receive_active(card)))  in activate_receiver()
716 		if (!receive_active(card))  in activate_receiver()
722 			netdev_err(card->dev, "Receiver failed to deactivate\n");  in activate_receiver()
733 		if (receive_active(card))  in activate_receiver()
739 			netdev_err(card->dev,  in activate_receiver()
751 static void deactivate_receiver(struct xircom_private *card)  in deactivate_receiver()  argument
753 	void __iomem *ioaddr = card->ioaddr;  in deactivate_receiver()
763 		if (!receive_active(card))  in deactivate_receiver()
769 			netdev_err(card->dev, "Receiver failed to deactivate\n");  in deactivate_receiver()
784 static void activate_transmitter(struct xircom_private *card)  in activate_transmitter()  argument
786 	void __iomem *ioaddr = card->ioaddr;  in activate_transmitter()
794 	if ((val&(1<<13)) && (transmit_active(card)))  in activate_transmitter()
802 		if (!transmit_active(card))  in activate_transmitter()
808 			netdev_err(card->dev,  in activate_transmitter()
820 		if (transmit_active(card))  in activate_transmitter()
826 			netdev_err(card->dev,  in activate_transmitter()
838 static void deactivate_transmitter(struct xircom_private *card)  in deactivate_transmitter()  argument
840 	void __iomem *ioaddr = card->ioaddr;  in deactivate_transmitter()
850 		if (!transmit_active(card))  in deactivate_transmitter()
856 			netdev_err(card->dev,  in deactivate_transmitter()
867 static void enable_transmit_interrupt(struct xircom_private *card)  in enable_transmit_interrupt()  argument
869 	void __iomem *ioaddr = card->ioaddr;  in enable_transmit_interrupt()
883 static void enable_receive_interrupt(struct xircom_private *card)  in enable_receive_interrupt()  argument
885 	void __iomem *ioaddr = card->ioaddr;  in enable_receive_interrupt()
898 static void enable_link_interrupt(struct xircom_private *card)  in enable_link_interrupt()  argument
900 	void __iomem *ioaddr = card->ioaddr;  in enable_link_interrupt()
915 static void disable_all_interrupts(struct xircom_private *card)  in disable_all_interrupts()  argument
917 	void __iomem *ioaddr = card->ioaddr;  in disable_all_interrupts()
927 static void enable_common_interrupts(struct xircom_private *card)  in enable_common_interrupts()  argument
929 	void __iomem *ioaddr = card->ioaddr;  in enable_common_interrupts()
949 static int enable_promisc(struct xircom_private *card)  in enable_promisc()  argument
951 	void __iomem *ioaddr = card->ioaddr;  in enable_promisc()
969 static int link_status(struct xircom_private *card)  in link_status()  argument
971 	void __iomem *ioaddr = card->ioaddr;  in link_status()
997 static void read_mac_address(struct xircom_private *card)  in read_mac_address()  argument
999 	void __iomem *ioaddr = card->ioaddr;  in read_mac_address()
1004 	spin_lock_irqsave(&card->lock, flags);  in read_mac_address()
1023 				card->dev->dev_addr[j] = xr32(CSR9) & 0xff;  in read_mac_address()
1030 	spin_unlock_irqrestore(&card->lock, flags);  in read_mac_address()
1031 	pr_debug(" %pM\n", card->dev->dev_addr);  in read_mac_address()
1040 static void transceiver_voodoo(struct xircom_private *card)  in transceiver_voodoo()  argument
1042 	void __iomem *ioaddr = card->ioaddr;  in transceiver_voodoo()
1046 	pci_write_config_dword(card->pdev, PCI_POWERMGMT, 0x0000);  in transceiver_voodoo()
1048 	setup_descriptors(card);  in transceiver_voodoo()
1050 	spin_lock_irqsave(&card->lock, flags);  in transceiver_voodoo()
1059 	spin_unlock_irqrestore(&card->lock, flags);  in transceiver_voodoo()
1061 	netif_start_queue(card->dev);  in transceiver_voodoo()
1065 static void xircom_up(struct xircom_private *card)  in xircom_up()  argument
1071 	pci_write_config_dword(card->pdev, PCI_POWERMGMT, 0x0000);  in xircom_up()
1073 	setup_descriptors(card);  in xircom_up()
1075 	spin_lock_irqsave(&card->lock, flags);  in xircom_up()
1078 	enable_link_interrupt(card);  in xircom_up()
1079 	enable_transmit_interrupt(card);  in xircom_up()
1080 	enable_receive_interrupt(card);  in xircom_up()
1081 	enable_common_interrupts(card);  in xircom_up()
1082 	enable_promisc(card);  in xircom_up()
1086 		investigate_read_descriptor(card->dev,card,i,bufferoffsets[i]);  in xircom_up()
1089 	spin_unlock_irqrestore(&card->lock, flags);  in xircom_up()
1090 	trigger_receive(card);  in xircom_up()
1091 	trigger_transmit(card);  in xircom_up()
1092 	netif_start_queue(card->dev);  in xircom_up()
1097 investigate_read_descriptor(struct net_device *dev, struct xircom_private *card,  in investigate_read_descriptor()  argument
1102 	status = le32_to_cpu(card->rx_buffer[4*descnr]);  in investigate_read_descriptor()
1124 					&card->rx_buffer[bufferoffset / 4],  in investigate_read_descriptor()
1134 		card->rx_buffer[4*descnr] = cpu_to_le32(0x80000000);  in investigate_read_descriptor()
1135 		trigger_receive(card);  in investigate_read_descriptor()
1143 			     struct xircom_private *card,  in investigate_write_descriptor()  argument
1148 	status = le32_to_cpu(card->tx_buffer[4*descnr]);  in investigate_write_descriptor()
1152 		card->tx_buffer[4*descnr] = 0;  in investigate_write_descriptor()
1157 		if (card->tx_skb[descnr]!=NULL) {  in investigate_write_descriptor()
1158 			dev->stats.tx_bytes += card->tx_skb[descnr]->len;  in investigate_write_descriptor()
1159 			dev_kfree_skb_irq(card->tx_skb[descnr]);  in investigate_write_descriptor()
1161 		card->tx_skb[descnr] = NULL;  in investigate_write_descriptor()
1165 		card->tx_buffer[4*descnr] = 0; /* descriptor is free again */  in investigate_write_descriptor()