Merge branch 'power-supply-scope' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen

1 files changed, 347 insertions, 0 deletions

diff --git a/drivers/net/ethernet/8390/ne3210.c b/drivers/net/ethernet/8390/ne3210.c
new file mode 100644
index 000000000000..243ed2aee88e
--- /dev/null
+++ b/drivers/net/ethernet/8390/ne3210.c
@@ -0,0 +1,347 @@
+/*
+	ne3210.c
+
+	Linux driver for Novell NE3210 EISA Network Adapter
+
+	Copyright (C) 1998, Paul Gortmaker.
+
+	This software may be used and distributed according to the terms
+	of the GNU General Public License, incorporated herein by reference.
+
+	Information and Code Sources:
+
+	1) Based upon my other EISA 8390 drivers (lne390, es3210, smc-ultra32)
+	2) The existing myriad of other Linux 8390 drivers by Donald Becker.
+	3) Info for getting IRQ and sh-mem gleaned from the EISA cfg file
+
+	The NE3210 is an EISA shared memory NS8390 implementation.  Shared
+	memory address > 1MB should work with this driver.
+
+	Note that the .cfg file (3/11/93, v1.0) has AUI and BNC switched
+	around (or perhaps there are some defective/backwards cards ???)
+
+	This driver WILL NOT WORK FOR THE NE3200 - it is completely different
+	and does not use an 8390 at all.
+
+	Updated to EISA probing API 5/2003 by Marc Zyngier.
+*/
+
+#include <linux/module.h>
+#include <linux/eisa.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/mm.h>
+
+#include <asm/io.h>
+#include <asm/system.h>
+
+#include "8390.h"
+
+#define DRV_NAME "ne3210"
+
+static void ne3210_reset_8390(struct net_device *dev);
+
+static void ne3210_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page);
+static void ne3210_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset);
+static void ne3210_block_output(struct net_device *dev, int count, const unsigned char *buf, const int start_page);
+
+#define NE3210_START_PG		0x00    /* First page of TX buffer	*/
+#define NE3210_STOP_PG		0x80    /* Last page +1 of RX ring	*/
+
+#define NE3210_IO_EXTENT	0x20
+#define NE3210_SA_PROM		0x16	/* Start of e'net addr.		*/
+#define NE3210_RESET_PORT	0xc84
+#define NE3210_NIC_OFFSET	0x00	/* Hello, the 8390 is *here*	*/
+
+#define NE3210_ADDR0		0x00	/* 3 byte vendor prefix		*/
+#define NE3210_ADDR1		0x00
+#define NE3210_ADDR2		0x1b
+
+#define NE3210_CFG1		0xc84	/* NB: 0xc84 is also "reset" port. */
+#define NE3210_CFG2		0xc90
+#define NE3210_CFG_EXTENT       (NE3210_CFG2 - NE3210_CFG1 + 1)
+
+/*
+ *	You can OR any of the following bits together and assign it
+ *	to NE3210_DEBUG to get verbose driver info during operation.
+ *	Currently only the probe one is implemented.
+ */
+
+#define NE3210_D_PROBE	0x01
+#define NE3210_D_RX_PKT	0x02
+#define NE3210_D_TX_PKT	0x04
+#define NE3210_D_IRQ	0x08
+
+#define NE3210_DEBUG	0x0
+
+static unsigned char irq_map[] __initdata = {15, 12, 11, 10, 9, 7, 5, 3};
+static unsigned int shmem_map[] __initdata = {0xff0, 0xfe0, 0xfff0, 0xd8, 0xffe0, 0xffc0, 0xd0, 0x0};
+static const char *ifmap[] __initdata = {"UTP", "?", "BNC", "AUI"};
+static int ifmap_val[] __initdata = {
+		IF_PORT_10BASET,
+		IF_PORT_UNKNOWN,
+		IF_PORT_10BASE2,
+		IF_PORT_AUI,
+};
+
+static int __init ne3210_eisa_probe (struct device *device)
+{
+	unsigned long ioaddr, phys_mem;
+	int i, retval, port_index;
+	struct eisa_device *edev = to_eisa_device (device);
+	struct net_device *dev;
+
+	/* Allocate dev->priv and fill in 8390 specific dev fields. */
+	if (!(dev = alloc_ei_netdev ())) {
+		printk ("ne3210.c: unable to allocate memory for dev!\n");
+		return -ENOMEM;
+	}
+
+	SET_NETDEV_DEV(dev, device);
+	dev_set_drvdata(device, dev);
+	ioaddr = edev->base_addr;
+
+	if (!request_region(ioaddr, NE3210_IO_EXTENT, DRV_NAME)) {
+		retval = -EBUSY;
+		goto out;
+	}
+
+	if (!request_region(ioaddr + NE3210_CFG1,
+			    NE3210_CFG_EXTENT, DRV_NAME)) {
+		retval = -EBUSY;
+		goto out1;
+	}
+
+#if NE3210_DEBUG & NE3210_D_PROBE
+	printk("ne3210-debug: probe at %#x, ID %s\n", ioaddr, edev->id.sig);
+	printk("ne3210-debug: config regs: %#x %#x\n",
+		inb(ioaddr + NE3210_CFG1), inb(ioaddr + NE3210_CFG2));
+#endif
+
+	port_index = inb(ioaddr + NE3210_CFG2) >> 6;
+	for(i = 0; i < ETHER_ADDR_LEN; i++)
+		dev->dev_addr[i] = inb(ioaddr + NE3210_SA_PROM + i);
+	printk("ne3210.c: NE3210 in EISA slot %d, media: %s, addr: %pM.\n",
+		edev->slot, ifmap[port_index], dev->dev_addr);
+
+	/* Snarf the interrupt now. CFG file has them all listed as `edge' with share=NO */
+	dev->irq = irq_map[(inb(ioaddr + NE3210_CFG2) >> 3) & 0x07];
+	printk("ne3210.c: using IRQ %d, ", dev->irq);
+
+	retval = request_irq(dev->irq, ei_interrupt, 0, DRV_NAME, dev);
+	if (retval) {
+		printk (" unable to get IRQ %d.\n", dev->irq);
+		goto out2;
+	}
+
+	phys_mem = shmem_map[inb(ioaddr + NE3210_CFG2) & 0x07] * 0x1000;
+
+	/*
+	   BEWARE!! Some dain-bramaged EISA SCUs will allow you to put
+	   the card mem within the region covered by `normal' RAM  !!!
+	*/
+	if (phys_mem > 1024*1024) {	/* phys addr > 1MB */
+		if (phys_mem < virt_to_phys(high_memory)) {
+			printk(KERN_CRIT "ne3210.c: Card RAM overlaps with normal memory!!!\n");
+			printk(KERN_CRIT "ne3210.c: Use EISA SCU to set card memory below 1MB,\n");
+			printk(KERN_CRIT "ne3210.c: or to an address above 0x%llx.\n",
+				(u64)virt_to_phys(high_memory));
+			printk(KERN_CRIT "ne3210.c: Driver NOT installed.\n");
+			retval = -EINVAL;
+			goto out3;
+		}
+	}
+
+	if (!request_mem_region (phys_mem, NE3210_STOP_PG*0x100, DRV_NAME)) {
+		printk ("ne3210.c: Unable to request shared memory at physical address %#lx\n",
+			phys_mem);
+		goto out3;
+	}
+
+	printk("%dkB memory at physical address %#lx\n",
+	       NE3210_STOP_PG/4, phys_mem);
+
+	ei_status.mem = ioremap(phys_mem, NE3210_STOP_PG*0x100);
+	if (!ei_status.mem) {
+		printk(KERN_ERR "ne3210.c: Unable to remap card memory !!\n");
+		printk(KERN_ERR "ne3210.c: Driver NOT installed.\n");
+		retval = -EAGAIN;
+		goto out4;
+	}
+	printk("ne3210.c: remapped %dkB card memory to virtual address %p\n",
+	       NE3210_STOP_PG/4, ei_status.mem);
+	dev->mem_start = (unsigned long)ei_status.mem;
+	dev->mem_end = dev->mem_start + (NE3210_STOP_PG - NE3210_START_PG)*256;
+
+	/* The 8390 offset is zero for the NE3210 */
+	dev->base_addr = ioaddr;
+
+	ei_status.name = "NE3210";
+	ei_status.tx_start_page = NE3210_START_PG;
+	ei_status.rx_start_page = NE3210_START_PG + TX_PAGES;
+	ei_status.stop_page = NE3210_STOP_PG;
+	ei_status.word16 = 1;
+	ei_status.priv = phys_mem;
+
+	if (ei_debug > 0)
+		printk("ne3210 loaded.\n");
+
+	ei_status.reset_8390 = &ne3210_reset_8390;
+	ei_status.block_input = &ne3210_block_input;
+	ei_status.block_output = &ne3210_block_output;
+	ei_status.get_8390_hdr = &ne3210_get_8390_hdr;
+
+	dev->netdev_ops = &ei_netdev_ops;
+
+	dev->if_port = ifmap_val[port_index];
+
+	if ((retval = register_netdev (dev)))
+		goto out5;
+
+	NS8390_init(dev, 0);
+	return 0;
+
+ out5:
+	iounmap(ei_status.mem);
+ out4:
+	release_mem_region (phys_mem, NE3210_STOP_PG*0x100);
+ out3:
+	free_irq (dev->irq, dev);
+ out2:
+	release_region (ioaddr + NE3210_CFG1, NE3210_CFG_EXTENT);
+ out1:
+	release_region (ioaddr, NE3210_IO_EXTENT);
+ out:
+	free_netdev (dev);
+
+	return retval;
+}
+
+static int __devexit ne3210_eisa_remove (struct device *device)
+{
+	struct net_device  *dev    = dev_get_drvdata(device);
+	unsigned long       ioaddr = to_eisa_device (device)->base_addr;
+
+	unregister_netdev (dev);
+	iounmap(ei_status.mem);
+	release_mem_region (ei_status.priv, NE3210_STOP_PG*0x100);
+	free_irq (dev->irq, dev);
+	release_region (ioaddr + NE3210_CFG1, NE3210_CFG_EXTENT);
+	release_region (ioaddr, NE3210_IO_EXTENT);
+	free_netdev (dev);
+
+	return 0;
+}
+
+/*
+ *	Reset by toggling the "Board Enable" bits (bit 2 and 0).
+ */
+
+static void ne3210_reset_8390(struct net_device *dev)
+{
+	unsigned short ioaddr = dev->base_addr;
+
+	outb(0x04, ioaddr + NE3210_RESET_PORT);
+	if (ei_debug > 1) printk("%s: resetting the NE3210...", dev->name);
+
+	mdelay(2);
+
+	ei_status.txing = 0;
+	outb(0x01, ioaddr + NE3210_RESET_PORT);
+	if (ei_debug > 1) printk("reset done\n");
+}
+
+/*
+ *	Note: In the following three functions is the implicit assumption
+ *	that the associated memcpy will only use "rep; movsl" as long as
+ *	we keep the counts as some multiple of doublewords. This is a
+ *	requirement of the hardware, and also prevents us from using
+ *	eth_io_copy_and_sum() since we can't guarantee it will limit
+ *	itself to doubleword access.
+ */
+
+/*
+ *	Grab the 8390 specific header. Similar to the block_input routine, but
+ *	we don't need to be concerned with ring wrap as the header will be at
+ *	the start of a page, so we optimize accordingly. (A single doubleword.)
+ */
+
+static void
+ne3210_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
+{
+	void __iomem *hdr_start = ei_status.mem + ((ring_page - NE3210_START_PG)<<8);
+	memcpy_fromio(hdr, hdr_start, sizeof(struct e8390_pkt_hdr));
+	hdr->count = (hdr->count + 3) & ~3;     /* Round up allocation. */
+}
+
+/*
+ *	Block input and output are easy on shared memory ethercards, the only
+ *	complication is when the ring buffer wraps. The count will already
+ *	be rounded up to a doubleword value via ne3210_get_8390_hdr() above.
+ */
+
+static void ne3210_block_input(struct net_device *dev, int count, struct sk_buff *skb,
+						  int ring_offset)
+{
+	void __iomem *start = ei_status.mem + ring_offset - NE3210_START_PG*256;
+
+	if (ring_offset + count > NE3210_STOP_PG*256) {
+		/* Packet wraps over end of ring buffer. */
+		int semi_count = NE3210_STOP_PG*256 - ring_offset;
+		memcpy_fromio(skb->data, start, semi_count);
+		count -= semi_count;
+		memcpy_fromio(skb->data + semi_count,
+				ei_status.mem + TX_PAGES*256, count);
+	} else {
+		/* Packet is in one chunk. */
+		memcpy_fromio(skb->data, start, count);
+	}
+}
+
+static void ne3210_block_output(struct net_device *dev, int count,
+				const unsigned char *buf, int start_page)
+{
+	void __iomem *shmem = ei_status.mem + ((start_page - NE3210_START_PG)<<8);
+
+	count = (count + 3) & ~3;     /* Round up to doubleword */
+	memcpy_toio(shmem, buf, count);
+}
+
+static struct eisa_device_id ne3210_ids[] = {
+	{ "EGL0101" },
+	{ "NVL1801" },
+	{ "" },
+};
+MODULE_DEVICE_TABLE(eisa, ne3210_ids);
+
+static struct eisa_driver ne3210_eisa_driver = {
+	.id_table = ne3210_ids,
+	.driver   = {
+		.name   = "ne3210",
+		.probe  = ne3210_eisa_probe,
+		.remove = __devexit_p (ne3210_eisa_remove),
+	},
+};
+
+MODULE_DESCRIPTION("NE3210 EISA Ethernet driver");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(eisa, ne3210_ids);
+
+static int ne3210_init(void)
+{
+	return eisa_driver_register (&ne3210_eisa_driver);
+}
+
+static void ne3210_cleanup(void)
+{
+	eisa_driver_unregister (&ne3210_eisa_driver);
+}
+
+module_init (ne3210_init);
+module_exit (ne3210_cleanup);