Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-23 11:21:33 +00:00
Code Issues Packages Projects Releases Wiki Activity
cc1a93e68f
linux/drivers/net/zorro8390.c
Geert Uytterhoeven cf7e032fc8 zorro8390: Fix regression caused during net_device_ops conversion 
Changeset b6114794a1 ("zorro8390: convert to
net_device_ops") broke zorro8390 by adding 8390.o to the link. That
meant that lib8390.c was included twice, once in zorro8390.c and once in
8390.c, subject to different macros. This patch reverts that by
avoiding the wrappers in 8390.c.

Fix based on commits 217cbfa856 ("mac8390:
fix regression caused during net_device_ops conversion") and
4e0168fa48 ("mac8390: fix build with
NET_POLL_CONTROLLER").

Reported-by: Christian T. Steigies <cts@debian.org>
Suggested-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Christian T. Steigies <cts@debian.org>
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-12 16:59:57 -04:00

460 lines
14 KiB
C
Raw Blame History

/*
* Amiga Linux/m68k and Linux/PPC Zorro NS8390 Ethernet Driver
*
* (C) Copyright 1998-2000 by some Elitist 680x0 Users(TM)
*
* ---------------------------------------------------------------------------
*
* This program is based on all the other NE2000 drivers for Linux
*
* ---------------------------------------------------------------------------
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of the Linux
* distribution for more details.
*
* ---------------------------------------------------------------------------
*
* The Ariadne II and X-Surf are Zorro-II boards containing Realtek RTL8019AS
* Ethernet Controllers.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/zorro.h>
#include <linux/jiffies.h>
#include <asm/system.h>
#include <asm/irq.h>
#include <asm/amigaints.h>
#include <asm/amigahw.h>
#define EI_SHIFT(x) (ei_local->reg_offset[x])
#define ei_inb(port) in_8(port)
#define ei_outb(val,port) out_8(port,val)
#define ei_inb_p(port) in_8(port)
#define ei_outb_p(val,port) out_8(port,val)
static const char version[] =
"8390.c:v1.10cvs 9/23/94 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n";
#include "lib8390.c"
#define DRV_NAME "zorro8390"
#define NE_BASE (dev->base_addr)
#define NE_CMD (0x00*2)
#define NE_DATAPORT (0x10*2) /* NatSemi-defined port window offset. */
#define NE_RESET (0x1f*2) /* Issue a read to reset, a write to clear. */
#define NE_IO_EXTENT (0x20*2)
#define NE_EN0_ISR (0x07*2)
#define NE_EN0_DCFG (0x0e*2)
#define NE_EN0_RSARLO (0x08*2)
#define NE_EN0_RSARHI (0x09*2)
#define NE_EN0_RCNTLO (0x0a*2)
#define NE_EN0_RXCR (0x0c*2)
#define NE_EN0_TXCR (0x0d*2)
#define NE_EN0_RCNTHI (0x0b*2)
#define NE_EN0_IMR (0x0f*2)
#define NESM_START_PG 0x40 /* First page of TX buffer */
#define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */
#define WORDSWAP(a) ((((a)>>8)&0xff) | ((a)<<8))
static struct card_info {
zorro_id id;
const char *name;
unsigned int offset;
} cards[] __devinitdata = {
{ ZORRO_PROD_VILLAGE_TRONIC_ARIADNE2, "Ariadne II", 0x0600 },
{ ZORRO_PROD_INDIVIDUAL_COMPUTERS_X_SURF, "X-Surf", 0x8600 },
};
static int __devinit zorro8390_init_one(struct zorro_dev *z,
const struct zorro_device_id *ent);
static int __devinit zorro8390_init(struct net_device *dev,
unsigned long board, const char *name,
unsigned long ioaddr);
static int zorro8390_open(struct net_device *dev);
static int zorro8390_close(struct net_device *dev);
static void zorro8390_reset_8390(struct net_device *dev);
static void zorro8390_get_8390_hdr(struct net_device *dev,
struct e8390_pkt_hdr *hdr, int ring_page);
static void zorro8390_block_input(struct net_device *dev, int count,
struct sk_buff *skb, int ring_offset);
static void zorro8390_block_output(struct net_device *dev, const int count,
const unsigned char *buf,
const int start_page);
static void __devexit zorro8390_remove_one(struct zorro_dev *z);
static struct zorro_device_id zorro8390_zorro_tbl[] __devinitdata = {
{ ZORRO_PROD_VILLAGE_TRONIC_ARIADNE2, },
{ ZORRO_PROD_INDIVIDUAL_COMPUTERS_X_SURF, },
{ 0 }
};
MODULE_DEVICE_TABLE(zorro, zorro8390_zorro_tbl);
static struct zorro_driver zorro8390_driver = {
.name = "zorro8390",
.id_table = zorro8390_zorro_tbl,
.probe = zorro8390_init_one,
.remove = __devexit_p(zorro8390_remove_one),
};
static int __devinit zorro8390_init_one(struct zorro_dev *z,
const struct zorro_device_id *ent)
{
struct net_device *dev;
unsigned long board, ioaddr;
int err, i;
for (i = ARRAY_SIZE(cards)-1; i >= 0; i--)
if (z->id == cards[i].id)
break;
if (i < 0)
return -ENODEV;
board = z->resource.start;
ioaddr = board+cards[i].offset;
dev = ____alloc_ei_netdev(0);
if (!dev)
return -ENOMEM;
if (!request_mem_region(ioaddr, NE_IO_EXTENT*2, DRV_NAME)) {
free_netdev(dev);
return -EBUSY;
}
if ((err = zorro8390_init(dev, board, cards[i].name,
ZTWO_VADDR(ioaddr)))) {
release_mem_region(ioaddr, NE_IO_EXTENT*2);
free_netdev(dev);
return err;
}
zorro_set_drvdata(z, dev);
return 0;
}
static const struct net_device_ops zorro8390_netdev_ops = {
.ndo_open = zorro8390_open,
.ndo_stop = zorro8390_close,
.ndo_start_xmit = __ei_start_xmit,
.ndo_tx_timeout = __ei_tx_timeout,
.ndo_get_stats = __ei_get_stats,
.ndo_set_multicast_list = __ei_set_multicast_list,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = eth_mac_addr,
.ndo_change_mtu = eth_change_mtu,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = __ei_poll,
#endif
};
static int __devinit zorro8390_init(struct net_device *dev,
unsigned long board, const char *name,
unsigned long ioaddr)
{
int i;
int err;
unsigned char SA_prom[32];
int start_page, stop_page;
static u32 zorro8390_offsets[16] = {
0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e,
0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e,
};
/* Reset card. Who knows what dain-bramaged state it was left in. */
{
unsigned long reset_start_time = jiffies;
z_writeb(z_readb(ioaddr + NE_RESET), ioaddr + NE_RESET);
while ((z_readb(ioaddr + NE_EN0_ISR) & ENISR_RESET) == 0)
if (time_after(jiffies, reset_start_time + 2*HZ/100)) {
printk(KERN_WARNING " not found (no reset ack).\n");
return -ENODEV;
}
z_writeb(0xff, ioaddr + NE_EN0_ISR); /* Ack all intr. */
}
/* Read the 16 bytes of station address PROM.
We must first initialize registers, similar to NS8390_init(eifdev, 0).
We can't reliably read the SAPROM address without this.
(I learned the hard way!). */
{
struct {
u32 value;
u32 offset;
} program_seq[] = {
{E8390_NODMA+E8390_PAGE0+E8390_STOP, NE_CMD}, /* Select page 0*/
{0x48, NE_EN0_DCFG}, /* Set byte-wide (0x48) access. */
{0x00, NE_EN0_RCNTLO}, /* Clear the count regs. */
{0x00, NE_EN0_RCNTHI},
{0x00, NE_EN0_IMR}, /* Mask completion irq. */
{0xFF, NE_EN0_ISR},
{E8390_RXOFF, NE_EN0_RXCR}, /* 0x20 Set to monitor */
{E8390_TXOFF, NE_EN0_TXCR}, /* 0x02 and loopback mode. */
{32, NE_EN0_RCNTLO},
{0x00, NE_EN0_RCNTHI},
{0x00, NE_EN0_RSARLO}, /* DMA starting at 0x0000. */
{0x00, NE_EN0_RSARHI},
{E8390_RREAD+E8390_START, NE_CMD},
};
for (i = 0; i < ARRAY_SIZE(program_seq); i++) {
z_writeb(program_seq[i].value, ioaddr + program_seq[i].offset);
}
}
for (i = 0; i < 16; i++) {
SA_prom[i] = z_readb(ioaddr + NE_DATAPORT);
(void)z_readb(ioaddr + NE_DATAPORT);
}
/* We must set the 8390 for word mode. */
z_writeb(0x49, ioaddr + NE_EN0_DCFG);
start_page = NESM_START_PG;
stop_page = NESM_STOP_PG;
dev->base_addr = ioaddr;
dev->irq = IRQ_AMIGA_PORTS;
/* Install the Interrupt handler */
i = request_irq(IRQ_AMIGA_PORTS, __ei_interrupt, IRQF_SHARED, DRV_NAME, dev);
if (i) return i;
for(i = 0; i < ETHER_ADDR_LEN; i++)
dev->dev_addr[i] = SA_prom[i];
#ifdef DEBUG
printk("%pM", dev->dev_addr);
#endif
ei_status.name = name;
ei_status.tx_start_page = start_page;
ei_status.stop_page = stop_page;
ei_status.word16 = 1;
ei_status.rx_start_page = start_page + TX_PAGES;
ei_status.reset_8390 = &zorro8390_reset_8390;
ei_status.block_input = &zorro8390_block_input;
ei_status.block_output = &zorro8390_block_output;
ei_status.get_8390_hdr = &zorro8390_get_8390_hdr;
ei_status.reg_offset = zorro8390_offsets;
dev->netdev_ops = &zorro8390_netdev_ops;
__NS8390_init(dev, 0);
err = register_netdev(dev);
if (err) {
free_irq(IRQ_AMIGA_PORTS, dev);
return err;
}
printk(KERN_INFO "%s: %s at 0x%08lx, Ethernet Address %pM\n",
dev->name, name, board, dev->dev_addr);
return 0;
}
static int zorro8390_open(struct net_device *dev)
{
__ei_open(dev);
return 0;
}
static int zorro8390_close(struct net_device *dev)
{
if (ei_debug > 1)
printk(KERN_DEBUG "%s: Shutting down ethercard.\n", dev->name);
__ei_close(dev);
return 0;
}
/* Hard reset the card. This used to pause for the same period that a
8390 reset command required, but that shouldn't be necessary. */
static void zorro8390_reset_8390(struct net_device *dev)
{
unsigned long reset_start_time = jiffies;
if (ei_debug > 1)
printk(KERN_DEBUG "resetting the 8390 t=%ld...\n", jiffies);
z_writeb(z_readb(NE_BASE + NE_RESET), NE_BASE + NE_RESET);
ei_status.txing = 0;
ei_status.dmaing = 0;
/* This check _should_not_ be necessary, omit eventually. */
while ((z_readb(NE_BASE+NE_EN0_ISR) & ENISR_RESET) == 0)
if (time_after(jiffies, reset_start_time + 2*HZ/100)) {
printk(KERN_WARNING "%s: ne_reset_8390() did not complete.\n",
dev->name);
break;
}
z_writeb(ENISR_RESET, NE_BASE + NE_EN0_ISR); /* Ack intr. */
}
/* 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. */
static void zorro8390_get_8390_hdr(struct net_device *dev,
struct e8390_pkt_hdr *hdr, int ring_page)
{
int nic_base = dev->base_addr;
int cnt;
short *ptrs;
/* This *shouldn't* happen. If it does, it's the last thing you'll see */
if (ei_status.dmaing) {
printk(KERN_ERR "%s: DMAing conflict in ne_get_8390_hdr "
"[DMAstat:%d][irqlock:%d].\n", dev->name, ei_status.dmaing,
ei_status.irqlock);
return;
}
ei_status.dmaing |= 0x01;
z_writeb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD);
z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR);
z_writeb(sizeof(struct e8390_pkt_hdr), nic_base + NE_EN0_RCNTLO);
z_writeb(0, nic_base + NE_EN0_RCNTHI);
z_writeb(0, nic_base + NE_EN0_RSARLO); /* On page boundary */
z_writeb(ring_page, nic_base + NE_EN0_RSARHI);
z_writeb(E8390_RREAD+E8390_START, nic_base + NE_CMD);
ptrs = (short*)hdr;
for (cnt = 0; cnt < (sizeof(struct e8390_pkt_hdr)>>1); cnt++)
*ptrs++ = z_readw(NE_BASE + NE_DATAPORT);
z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR); /* Ack intr. */
hdr->count = WORDSWAP(hdr->count);
ei_status.dmaing &= ~0x01;
}
/* Block input and output, similar to the Crynwr packet driver. If you
are porting to a new ethercard, look at the packet driver source for hints.
The NEx000 doesn't share the on-board packet memory -- you have to put
the packet out through the "remote DMA" dataport using z_writeb. */
static void zorro8390_block_input(struct net_device *dev, int count,
struct sk_buff *skb, int ring_offset)
{
int nic_base = dev->base_addr;
char *buf = skb->data;
short *ptrs;
int cnt;
/* This *shouldn't* happen. If it does, it's the last thing you'll see */
if (ei_status.dmaing) {
printk(KERN_ERR "%s: DMAing conflict in ne_block_input "
"[DMAstat:%d][irqlock:%d].\n",
dev->name, ei_status.dmaing, ei_status.irqlock);
return;
}
ei_status.dmaing |= 0x01;
z_writeb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD);
z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR);
z_writeb(count & 0xff, nic_base + NE_EN0_RCNTLO);
z_writeb(count >> 8, nic_base + NE_EN0_RCNTHI);
z_writeb(ring_offset & 0xff, nic_base + NE_EN0_RSARLO);
z_writeb(ring_offset >> 8, nic_base + NE_EN0_RSARHI);
z_writeb(E8390_RREAD+E8390_START, nic_base + NE_CMD);
ptrs = (short*)buf;
for (cnt = 0; cnt < (count>>1); cnt++)
*ptrs++ = z_readw(NE_BASE + NE_DATAPORT);
if (count & 0x01)
buf[count-1] = z_readb(NE_BASE + NE_DATAPORT);
z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR); /* Ack intr. */
ei_status.dmaing &= ~0x01;
}
static void zorro8390_block_output(struct net_device *dev, int count,
const unsigned char *buf,
const int start_page)
{
int nic_base = NE_BASE;
unsigned long dma_start;
short *ptrs;
int cnt;
/* Round the count up for word writes. Do we need to do this?
What effect will an odd byte count have on the 8390?
I should check someday. */
if (count & 0x01)
count++;
/* This *shouldn't* happen. If it does, it's the last thing you'll see */
if (ei_status.dmaing) {
printk(KERN_ERR "%s: DMAing conflict in ne_block_output."
"[DMAstat:%d][irqlock:%d]\n", dev->name, ei_status.dmaing,
ei_status.irqlock);
return;
}
ei_status.dmaing |= 0x01;
/* We should already be in page 0, but to be safe... */
z_writeb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD);
z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR);
/* Now the normal output. */
z_writeb(count & 0xff, nic_base + NE_EN0_RCNTLO);
z_writeb(count >> 8, nic_base + NE_EN0_RCNTHI);
z_writeb(0x00, nic_base + NE_EN0_RSARLO);
z_writeb(start_page, nic_base + NE_EN0_RSARHI);
z_writeb(E8390_RWRITE+E8390_START, nic_base + NE_CMD);
ptrs = (short*)buf;
for (cnt = 0; cnt < count>>1; cnt++)
z_writew(*ptrs++, NE_BASE+NE_DATAPORT);
dma_start = jiffies;
while ((z_readb(NE_BASE + NE_EN0_ISR) & ENISR_RDC) == 0)
if (time_after(jiffies, dma_start + 2*HZ/100)) { /* 20ms */
printk(KERN_ERR "%s: timeout waiting for Tx RDC.\n",
dev->name);
zorro8390_reset_8390(dev);
__NS8390_init(dev,1);
break;
}
z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR); /* Ack intr. */
ei_status.dmaing &= ~0x01;
}
static void __devexit zorro8390_remove_one(struct zorro_dev *z)
{
struct net_device *dev = zorro_get_drvdata(z);
unregister_netdev(dev);
free_irq(IRQ_AMIGA_PORTS, dev);
release_mem_region(ZTWO_PADDR(dev->base_addr), NE_IO_EXTENT*2);
free_netdev(dev);
}
static int __init zorro8390_init_module(void)
{
return zorro_register_driver(&zorro8390_driver);
}
static void __exit zorro8390_cleanup_module(void)
{
zorro_unregister_driver(&zorro8390_driver);
}
module_init(zorro8390_init_module);
module_exit(zorro8390_cleanup_module);
MODULE_LICENSE("GPL");
Reference in New Issue View Git Blame Copy Permalink