diff options
Diffstat (limited to 'drivers/net/zorro8390.c')
| -rw-r--r-- | drivers/net/zorro8390.c | 673 |
1 files changed, 333 insertions, 340 deletions
diff --git a/drivers/net/zorro8390.c b/drivers/net/zorro8390.c index 8c7c522..15e7751a 100644 --- a/drivers/net/zorro8390.c +++ b/drivers/net/zorro8390.c @@ -19,6 +19,8 @@ * Ethernet Controllers. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/kernel.h> #include <linux/errno.h> @@ -34,115 +36,242 @@ #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) +#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"; + "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 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)) - +#define WORDSWAP(a) ((((a) >> 8) & 0xff) | ((a) << 8)) static struct card_info { - zorro_id id; - const char *name; - unsigned int offset; + 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 }, + { 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); +/* 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) + netdev_dbg(dev, "resetting - 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)) { + netdev_warn(dev, "%s: did not complete\n", __func__); + 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); + 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) { + netdev_err(dev, "%s: DMAing conflict [DMAstat:%d][irqlock:%d]\n", + __func__, 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); -static void zorro8390_block_output(struct net_device *dev, const 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) { + netdev_err(dev, "%s: DMAing conflict [DMAstat:%d][irqlock:%d]\n", + __func__, 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); -static void __devexit zorro8390_remove_one(struct zorro_dev *z); + 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) { + netdev_err(dev, "%s: DMAing conflict [DMAstat:%d][irqlock:%d]\n", + __func__, 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 */ + netdev_err(dev, "timeout waiting for Tx RDC\n"); + 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 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 int zorro8390_open(struct net_device *dev) +{ + __ei_open(dev); + return 0; +} -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 zorro8390_close(struct net_device *dev) +{ + if (ei_debug > 1) + netdev_dbg(dev, "Shutting down ethercard\n"); + __ei_close(dev); + return 0; +} -static int __devinit zorro8390_init_one(struct zorro_dev *z, - const struct zorro_device_id *ent) +static void __devexit zorro8390_remove_one(struct zorro_dev *z) { - 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); + 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); - return err; - } - zorro_set_drvdata(z, dev); - return 0; } +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 const struct net_device_ops zorro8390_netdev_ops = { .ndo_open = zorro8390_open, .ndo_stop = zorro8390_close, @@ -151,7 +280,7 @@ static const struct net_device_ops zorro8390_netdev_ops = { .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_set_mac_address = eth_mac_addr, .ndo_change_mtu = eth_change_mtu, #ifdef CONFIG_NET_POLL_CONTROLLER .ndo_poll_controller = __ei_poll, @@ -162,295 +291,159 @@ 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}, + 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, }; - 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; + /* Reset card. Who knows what dain-bramaged state it was left in. */ + { + unsigned long reset_start_time = jiffies; - dev->base_addr = ioaddr; - dev->irq = IRQ_AMIGA_PORTS; + z_writeb(z_readb(ioaddr + NE_RESET), ioaddr + NE_RESET); - /* Install the Interrupt handler */ - i = request_irq(IRQ_AMIGA_PORTS, __ei_interrupt, IRQF_SHARED, DRV_NAME, dev); - if (i) return i; + while ((z_readb(ioaddr + NE_EN0_ISR) & ENISR_RESET) == 0) + if (time_after(jiffies, + reset_start_time + 2 * HZ / 100)) { + netdev_warn(dev, "not found (no reset ack)\n"); + return -ENODEV; + } - for(i = 0; i < ETHER_ADDR_LEN; i++) - dev->dev_addr[i] = SA_prom[i]; - -#ifdef DEBUG - printk("%pM", dev->dev_addr); -#endif + z_writeb(0xff, ioaddr + NE_EN0_ISR); /* Ack all intr. */ + } - ei_status.name = name; - ei_status.tx_start_page = start_page; - ei_status.stop_page = stop_page; - ei_status.word16 = 1; + /* 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!). + */ + { + static const struct { + u32 value; + u32 offset; + } program_seq[] = { + {E8390_NODMA + E8390_PAGE0 + E8390_STOP, NE_CMD}, + /* Select page 0 */ + {0x48, NE_EN0_DCFG}, /* 0x48: Set byte-wide 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); + } - ei_status.rx_start_page = start_page + TX_PAGES; + /* 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; - 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->base_addr = ioaddr; + dev->irq = IRQ_AMIGA_PORTS; - dev->netdev_ops = &zorro8390_netdev_ops; - __NS8390_init(dev, 0); - err = register_netdev(dev); - if (err) { - free_irq(IRQ_AMIGA_PORTS, dev); - return err; - } + /* Install the Interrupt handler */ + i = request_irq(IRQ_AMIGA_PORTS, __ei_interrupt, + IRQF_SHARED, DRV_NAME, dev); + if (i) + return i; - printk(KERN_INFO "%s: %s at 0x%08lx, Ethernet Address %pM\n", - dev->name, name, board, dev->dev_addr); + for (i = 0; i < ETHER_ADDR_LEN; i++) + dev->dev_addr[i] = SA_prom[i]; - return 0; -} + pr_debug("Found ethernet address: %pM\n", dev->dev_addr); -static int zorro8390_open(struct net_device *dev) -{ - __ei_open(dev); - return 0; -} + ei_status.name = name; + ei_status.tx_start_page = start_page; + ei_status.stop_page = stop_page; + ei_status.word16 = 1; -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; -} + ei_status.rx_start_page = start_page + TX_PAGES; -/* 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; + 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; - 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; + dev->netdev_ops = &zorro8390_netdev_ops; + __NS8390_init(dev, 0); + err = register_netdev(dev); + if (err) { + free_irq(IRQ_AMIGA_PORTS, dev); + return err; } - 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. */ + netdev_info(dev, "%s at 0x%08lx, Ethernet Address %pM\n", + name, board, dev->dev_addr); -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; + return 0; } -/* 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) +static int __devinit zorro8390_init_one(struct zorro_dev *z, + const struct zorro_device_id *ent) { - 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; -} + 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; -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; + 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; } - - z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR); /* Ack intr. */ - ei_status.dmaing &= ~0x01; + err = zorro8390_init(dev, board, cards[i].name, ZTWO_VADDR(ioaddr)); + if (err) { + release_mem_region(ioaddr, NE_IO_EXTENT * 2); + free_netdev(dev); + return err; + } + zorro_set_drvdata(z, dev); + return 0; } -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 struct zorro_driver zorro8390_driver = { + .name = "zorro8390", + .id_table = zorro8390_zorro_tbl, + .probe = zorro8390_init_one, + .remove = __devexit_p(zorro8390_remove_one), +}; static int __init zorro8390_init_module(void) { - return zorro_register_driver(&zorro8390_driver); + return zorro_register_driver(&zorro8390_driver); } static void __exit zorro8390_cleanup_module(void) { - zorro_unregister_driver(&zorro8390_driver); + zorro_unregister_driver(&zorro8390_driver); } module_init(zorro8390_init_module); |