/* * linux/drivers/acorn/net/etherh.c * * Copyright (C) 2000-2002 Russell King * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * NS8390 I-cubed EtherH and ANT EtherM specific driver * Thanks to I-Cubed for information on their cards. * EtherM conversion (C) 1999 Chris Kemp and Tim Watterton * EtherM integration (C) 2000 Aleph One Ltd (Tak-Shing Chan) * EtherM integration re-engineered by Russell King. * * Changelog: * 08-12-1996 RMK 1.00 Created * RMK 1.03 Added support for EtherLan500 cards * 23-11-1997 RMK 1.04 Added media autodetection * 16-04-1998 RMK 1.05 Improved media autodetection * 10-02-2000 RMK 1.06 Updated for 2.3.43 * 13-05-2000 RMK 1.07 Updated for 2.3.99-pre8 * 12-10-1999 CK/TEW EtherM driver first release * 21-12-2000 TTC EtherH/EtherM integration * 25-12-2000 RMK 1.08 Clean integration of EtherM into this driver. * 03-01-2002 RMK 1.09 Always enable IRQs if we're in the nic slot. */ #include <linux/module.h>#include <linux/kernel.h>#include <linux/sched.h>#include <linux/types.h>#include <linux/fcntl.h>#include <linux/interrupt.h>#include <linux/ptrace.h>#include <linux/ioport.h>#include <linux/in.h>#include <linux/slab.h>#include <linux/string.h>#include <linux/errno.h>#include <linux/netdevice.h>#include <linux/etherdevice.h>#include <linux/ethtool.h>#include <linux/skbuff.h>#include <linux/delay.h>#include <linux/device.h>#include <linux/init.h>#include <linux/bitops.h>#include <linux/jiffies.h> #include <asm/system.h>#include <asm/ecard.h>#include <asm/io.h> #include "../8390.h" #define NET_DEBUG 0#define DEBUG_INIT 2 #define DRV_NAME "etherh"#define DRV_VERSION "1.11" static unsigned int net_debug = NET_DEBUG; struct etherh_priv { void __iomem *ioc_fast; void __iomem *memc; void __iomem *dma_base; unsigned int id; void __iomem *ctrl_port; unsigned char ctrl; u32 supported;}; struct etherh_data { unsigned long ns8390_offset; unsigned long dataport_offset; unsigned long ctrlport_offset; int ctrl_ioc; const char name[16]; u32 supported; unsigned char tx_start_page; unsigned char stop_page;}; MODULE_AUTHOR("Russell King");MODULE_DESCRIPTION("EtherH/EtherM driver");MODULE_LICENSE("GPL"); static char version[] __initdata = "EtherH/EtherM Driver (c) 2002-2004 Russell King " DRV_VERSION "\n"; #define ETHERH500_DATAPORT 0x800 /* MEMC */#define ETHERH500_NS8390 0x000 /* MEMC */#define ETHERH500_CTRLPORT 0x800 /* IOC */ #define ETHERH600_DATAPORT 0x040 /* MEMC */#define ETHERH600_NS8390 0x800 /* MEMC */#define ETHERH600_CTRLPORT 0x200 /* MEMC */ #define ETHERH_CP_IE 1#define ETHERH_CP_IF 2#define ETHERH_CP_HEARTBEAT 2 #define ETHERH_TX_START_PAGE 1#define ETHERH_STOP_PAGE 127 /* * These came from CK/TEW */#define ETHERM_DATAPORT 0x200 /* MEMC */#define ETHERM_NS8390 0x800 /* MEMC */#define ETHERM_CTRLPORT 0x23c /* MEMC */ #define ETHERM_TX_START_PAGE 64#define ETHERM_STOP_PAGE 127 /* ------------------------------------------------------------------------ */ #define etherh_priv(dev) \ ((struct etherh_priv *)(((char *)netdev_priv(dev)) + sizeof(struct ei_device))) static inline void etherh_set_ctrl(struct etherh_priv *eh, unsigned char mask){ unsigned char ctrl = eh->ctrl | mask; eh->ctrl = ctrl; writeb(ctrl, eh->ctrl_port);} static inline void etherh_clr_ctrl(struct etherh_priv *eh, unsigned char mask){ unsigned char ctrl = eh->ctrl & ~mask; eh->ctrl = ctrl; writeb(ctrl, eh->ctrl_port);} static inline unsigned int etherh_get_stat(struct etherh_priv *eh){ return readb(eh->ctrl_port);} static void etherh_irq_enable(ecard_t *ec, int irqnr){ struct etherh_priv *eh = ec->irq_data; etherh_set_ctrl(eh, ETHERH_CP_IE);} static void etherh_irq_disable(ecard_t *ec, int irqnr){ struct etherh_priv *eh = ec->irq_data; etherh_clr_ctrl(eh, ETHERH_CP_IE);} static expansioncard_ops_t etherh_ops = { .irqenable = etherh_irq_enable, .irqdisable = etherh_irq_disable,}; static voidetherh_setif(struct net_device *dev){ struct ei_device *ei_local = netdev_priv(dev); unsigned long flags; void __iomem *addr; local_irq_save(flags); /* set the interface type */ switch (etherh_priv(dev)->id) { case PROD_I3_ETHERLAN600: case PROD_I3_ETHERLAN600A: addr = (void *)dev->base_addr + EN0_RCNTHI; switch (dev->if_port) { case IF_PORT_10BASE2: writeb((readb(addr) & 0xf8) | 1, addr); break; case IF_PORT_10BASET: writeb((readb(addr) & 0xf8), addr); break; } break; case PROD_I3_ETHERLAN500: switch (dev->if_port) { case IF_PORT_10BASE2: etherh_clr_ctrl(etherh_priv(dev), ETHERH_CP_IF); break; case IF_PORT_10BASET: etherh_set_ctrl(etherh_priv(dev), ETHERH_CP_IF); break; } break; default: break; } local_irq_restore(flags);} static intetherh_getifstat(struct net_device *dev){ struct ei_device *ei_local = netdev_priv(dev); void __iomem *addr; int stat = 0; switch (etherh_priv(dev)->id) { case PROD_I3_ETHERLAN600: case PROD_I3_ETHERLAN600A: addr = (void *)dev->base_addr + EN0_RCNTHI; switch (dev->if_port) { case IF_PORT_10BASE2: stat = 1; break; case IF_PORT_10BASET: stat = readb(addr) & 4; break; } break; case PROD_I3_ETHERLAN500: switch (dev->if_port) { case IF_PORT_10BASE2: stat = 1; break; case IF_PORT_10BASET: stat = etherh_get_stat(etherh_priv(dev)) & ETHERH_CP_HEARTBEAT; break; } break; default: stat = 0; break; } return stat != 0;} /* * Configure the interface. Note that we ignore the other * parts of ifmap, since its mostly meaningless for this driver. */static int etherh_set_config(struct net_device *dev, struct ifmap *map){ switch (map->port) { case IF_PORT_10BASE2: case IF_PORT_10BASET: /* * If the user explicitly sets the interface * media type, turn off automedia detection. */ dev->flags &= ~IFF_AUTOMEDIA; dev->if_port = map->port; break; default: return -EINVAL; } etherh_setif(dev); return 0;} /* * Reset the 8390 (hard reset). Note that we can't actually do this. */static voidetherh_reset(struct net_device *dev){ struct ei_device *ei_local = netdev_priv(dev); void __iomem *addr = (void *)dev->base_addr; writeb(E8390_NODMA+E8390_PAGE0+E8390_STOP, addr); /* * See if we need to change the interface type. * Note that we use 'interface_num' as a flag * to indicate that we need to change the media. */ if (dev->flags & IFF_AUTOMEDIA && ei_local->interface_num) { ei_local->interface_num = 0; if (dev->if_port == IF_PORT_10BASET) dev->if_port = IF_PORT_10BASE2; else dev->if_port = IF_PORT_10BASET; etherh_setif(dev); }} /* * Write a block of data out to the 8390 */static voidetherh_block_output (struct net_device *dev, int count, const unsigned char *buf, int start_page){ struct ei_device *ei_local = netdev_priv(dev); unsigned long dma_start; void __iomem *dma_base, *addr; if (ei_local->dmaing) { printk(KERN_ERR "%s: DMAing conflict in etherh_block_input: " " DMAstat %d irqlock %d\n", dev->name, ei_local->dmaing, ei_local->irqlock); return; } /* * Make sure we have a round number of bytes if we're in word mode. */ if (count & 1 && ei_local->word16) count++; ei_local->dmaing = 1; addr = (void *)dev->base_addr; dma_base = etherh_priv(dev)->dma_base; count = (count + 1) & ~1; writeb (E8390_NODMA | E8390_PAGE0 | E8390_START, addr + E8390_CMD); writeb (0x42, addr + EN0_RCNTLO); writeb (0x00, addr + EN0_RCNTHI); writeb (0x42, addr + EN0_RSARLO); writeb (0x00, addr + EN0_RSARHI); writeb (E8390_RREAD | E8390_START, addr + E8390_CMD); udelay (1); writeb (ENISR_RDC, addr + EN0_ISR); writeb (count, addr + EN0_RCNTLO); writeb (count >> 8, addr + EN0_RCNTHI); writeb (0, addr + EN0_RSARLO); writeb (start_page, addr + EN0_RSARHI); writeb (E8390_RWRITE | E8390_START, addr + E8390_CMD); if (ei_local->word16) writesw (dma_base, buf, count >> 1); else writesb (dma_base, buf, count); dma_start = jiffies; while ((readb (addr + 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); etherh_reset (dev); NS8390_init (dev, 1); break; } writeb (ENISR_RDC, addr + EN0_ISR); ei_local->dmaing = 0;} /* * Read a block of data from the 8390 */static voidetherh_block_input (struct net_device *dev, int count, struct sk_buff *skb, int ring_offset){ struct ei_device *ei_local = netdev_priv(dev); unsigned char *buf; void __iomem *dma_base, *addr; if (ei_local->dmaing) { printk(KERN_ERR "%s: DMAing conflict in etherh_block_input: " " DMAstat %d irqlock %d\n", dev->name, ei_local->dmaing, ei_local->irqlock); return; } ei_local->dmaing = 1; addr = (void *)dev->base_addr; dma_base = etherh_priv(dev)->dma_base; buf = skb->data; writeb (E8390_NODMA | E8390_PAGE0 | E8390_START, addr + E8390_CMD); writeb (count, addr + EN0_RCNTLO); writeb (count >> 8, addr + EN0_RCNTHI); writeb (ring_offset, addr + EN0_RSARLO); writeb (ring_offset >> 8, addr + EN0_RSARHI); writeb (E8390_RREAD | E8390_START, addr + E8390_CMD); if (ei_local->word16) { readsw (dma_base, buf, count >> 1); if (count & 1) buf[count - 1] = readb (dma_base); } else readsb (dma_base, buf, count); writeb (ENISR_RDC, addr + EN0_ISR); ei_local->dmaing = 0;} /* * Read a header from the 8390 */static voidetherh_get_header (struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page){ struct ei_device *ei_local = netdev_priv(dev); void __iomem *dma_base, *addr; if (ei_local->dmaing) { printk(KERN_ERR "%s: DMAing conflict in etherh_get_header: " " DMAstat %d irqlock %d\n", dev->name, ei_local->dmaing, ei_local->irqlock); return; } ei_local->dmaing = 1; addr = (void *)dev->base_addr; dma_base = etherh_priv(dev)->dma_base; writeb (E8390_NODMA | E8390_PAGE0 | E8390_START, addr + E8390_CMD); writeb (sizeof (*hdr), addr + EN0_RCNTLO); writeb (0, addr + EN0_RCNTHI); writeb (0, addr + EN0_RSARLO); writeb (ring_page, addr + EN0_RSARHI); writeb (E8390_RREAD | E8390_START, addr + E8390_CMD); if (ei_local->word16) readsw (dma_base, hdr, sizeof (*hdr) >> 1); else readsb (dma_base, hdr, sizeof (*hdr)); writeb (ENISR_RDC, addr + EN0_ISR); ei_local->dmaing = 0;} /* * Open/initialize the board. This is called (in the current kernel) * sometime after booting when the 'ifconfig' program is run. * * This routine should set everything up anew at each open, even * registers that "should" only need to be set once at boot, so that * there is non-reboot way to recover if something goes wrong. */static intetherh_open(struct net_device *dev){ struct ei_device *ei_local = netdev_priv(dev); if (!is_valid_ether_addr(dev->dev_addr)) { printk(KERN_WARNING "%s: invalid ethernet MAC address\n", dev->name); return -EINVAL; } if (request_irq(dev->irq, ei_interrupt, 0, dev->name, dev)) return -EAGAIN; /* * Make sure that we aren't going to change the * media type on the next reset - we are about to * do automedia manually now. */ ei_local->interface_num = 0; /* * If we are doing automedia detection, do it now. * This is more reliable than the 8390's detection. */ if (dev->flags & IFF_AUTOMEDIA) { dev->if_port = IF_PORT_10BASET; etherh_setif(dev); mdelay(1); if (!etherh_getifstat(dev)) { dev->if_port = IF_PORT_10BASE2; etherh_setif(dev); } } else etherh_setif(dev); etherh_reset(dev); ei_open(dev); return 0;} /* * The inverse routine to etherh_open().Lines 1–500 of 862. 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/* * linux/drivers/acorn/net/etherh.c * * Copyright (C) 2000-2002 Russell King * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * NS8390 I-cubed EtherH and ANT EtherM specific driver * Thanks to I-Cubed for information on their cards. * EtherM conversion (C) 1999 Chris Kemp and Tim Watterton * EtherM integration (C) 2000 Aleph One Ltd (Tak-Shing Chan) * EtherM integration re-engineered by Russell King. * * Changelog: * 08-12-1996 RMK 1.00 Created * RMK 1.03 Added support for EtherLan500 cards * 23-11-1997 RMK 1.04 Added media autodetection * 16-04-1998 RMK 1.05 Improved media autodetection * 10-02-2000 RMK 1.06 Updated for 2.3.43 * 13-05-2000 RMK 1.07 Updated for 2.3.99-pre8 * 12-10-1999 CK/TEW EtherM driver first release * 21-12-2000 TTC EtherH/EtherM integration * 25-12-2000 RMK 1.08 Clean integration of EtherM into this driver. * 03-01-2002 RMK 1.09 Always enable IRQs if we're in the nic slot. */ #include <linux/module.h> #include <linux/kernel.h> #include <linux/sched.h> #include <linux/types.h> #include <linux/fcntl.h> #include <linux/interrupt.h> #include <linux/ptrace.h> #include <linux/ioport.h> #include <linux/in.h> #include <linux/slab.h> #include <linux/string.h> #include <linux/errno.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/ethtool.h> #include <linux/skbuff.h> #include <linux/delay.h> #include <linux/device.h> #include <linux/init.h> #include <linux/bitops.h> #include <linux/jiffies.h> #include <asm/system.h> #include <asm/ecard.h> #include <asm/io.h> #include "../8390.h" #define NET_DEBUG 0 #define DEBUG_INIT 2 #define DRV_NAME "etherh" #define DRV_VERSION "1.11" static unsigned int net_debug = NET_DEBUG; struct etherh_priv { void __iomem *ioc_fast; void __iomem *memc; void __iomem *dma_base; unsigned int id; void __iomem *ctrl_port; unsigned char ctrl; u32 supported; }; struct etherh_data { unsigned long ns8390_offset; unsigned long dataport_offset; unsigned long ctrlport_offset; int ctrl_ioc; const char name[16]; u32 supported; unsigned char tx_start_page; unsigned char stop_page; }; MODULE_AUTHOR("Russell King"); MODULE_DESCRIPTION("EtherH/EtherM driver"); MODULE_LICENSE("GPL"); static char version[] __initdata = "EtherH/EtherM Driver (c) 2002-2004 Russell King " DRV_VERSION "\n"; #define ETHERH500_DATAPORT 0x800 /* MEMC */ #define ETHERH500_NS8390 0x000 /* MEMC */ #define ETHERH500_CTRLPORT 0x800 /* IOC */ #define ETHERH600_DATAPORT 0x040 /* MEMC */ #define ETHERH600_NS8390 0x800 /* MEMC */ #define ETHERH600_CTRLPORT 0x200 /* MEMC */ #define ETHERH_CP_IE 1 #define ETHERH_CP_IF 2 #define ETHERH_CP_HEARTBEAT 2 #define ETHERH_TX_START_PAGE 1 #define ETHERH_STOP_PAGE 127 /* * These came from CK/TEW */ #define ETHERM_DATAPORT 0x200 /* MEMC */ #define ETHERM_NS8390 0x800 /* MEMC */ #define ETHERM_CTRLPORT 0x23c /* MEMC */ #define ETHERM_TX_START_PAGE 64 #define ETHERM_STOP_PAGE 127 /* ------------------------------------------------------------------------ */ #define etherh_priv(dev) \ ((struct etherh_priv *)(((char *)netdev_priv(dev)) + sizeof(struct ei_device))) static inline void etherh_set_ctrl(struct etherh_priv *eh, unsigned char mask) { unsigned char ctrl = eh->ctrl | mask; eh->ctrl = ctrl; writeb(ctrl, eh->ctrl_port); } static inline void etherh_clr_ctrl(struct etherh_priv *eh, unsigned char mask) { unsigned char ctrl = eh->ctrl & ~mask; eh->ctrl = ctrl; writeb(ctrl, eh->ctrl_port); } static inline unsigned int etherh_get_stat(struct etherh_priv *eh) { return readb(eh->ctrl_port); } static void etherh_irq_enable(ecard_t *ec, int irqnr) { struct etherh_priv *eh = ec->irq_data; etherh_set_ctrl(eh, ETHERH_CP_IE); } static void etherh_irq_disable(ecard_t *ec, int irqnr) { struct etherh_priv *eh = ec->irq_data; etherh_clr_ctrl(eh, ETHERH_CP_IE); } static expansioncard_ops_t etherh_ops = { .irqenable = etherh_irq_enable, .irqdisable = etherh_irq_disable, }; static void etherh_setif(struct net_device *dev) { struct ei_device *ei_local = netdev_priv(dev); unsigned long flags; void __iomem *addr; local_irq_save(flags); /* set the interface type */ switch (etherh_priv(dev)->id) { case PROD_I3_ETHERLAN600: case PROD_I3_ETHERLAN600A: addr = (void *)dev->base_addr + EN0_RCNTHI; switch (dev->if_port) { case IF_PORT_10BASE2: writeb((readb(addr) & 0xf8) | 1, addr); break; case IF_PORT_10BASET: writeb((readb(addr) & 0xf8), addr); break; } break; case PROD_I3_ETHERLAN500: switch (dev->if_port) { case IF_PORT_10BASE2: etherh_clr_ctrl(etherh_priv(dev), ETHERH_CP_IF); break; case IF_PORT_10BASET: etherh_set_ctrl(etherh_priv(dev), ETHERH_CP_IF); break; } break; default: break; } local_irq_restore(flags); } static int etherh_getifstat(struct net_device *dev) { struct ei_device *ei_local = netdev_priv(dev); void __iomem *addr; int stat = 0; switch (etherh_priv(dev)->id) { case PROD_I3_ETHERLAN600: case PROD_I3_ETHERLAN600A: addr = (void *)dev->base_addr + EN0_RCNTHI; switch (dev->if_port) { case IF_PORT_10BASE2: stat = 1; break; case IF_PORT_10BASET: stat = readb(addr) & 4; break; } break; case PROD_I3_ETHERLAN500: switch (dev->if_port) { case IF_PORT_10BASE2: stat = 1; break; case IF_PORT_10BASET: stat = etherh_get_stat(etherh_priv(dev)) & ETHERH_CP_HEARTBEAT; break; } break; default: stat = 0; break; } return stat != 0; } /* * Configure the interface. Note that we ignore the other * parts of ifmap, since its mostly meaningless for this driver. */ static int etherh_set_config(struct net_device *dev, struct ifmap *map) { switch (map->port) { case IF_PORT_10BASE2: case IF_PORT_10BASET: /* * If the user explicitly sets the interface * media type, turn off automedia detection. */ dev->flags &= ~IFF_AUTOMEDIA; dev->if_port = map->port; break; default: return -EINVAL; } etherh_setif(dev); return 0; } /* * Reset the 8390 (hard reset). Note that we can't actually do this. */ static void etherh_reset(struct net_device *dev) { struct ei_device *ei_local = netdev_priv(dev); void __iomem *addr = (void *)dev->base_addr; writeb(E8390_NODMA+E8390_PAGE0+E8390_STOP, addr); /* * See if we need to change the interface type. * Note that we use 'interface_num' as a flag * to indicate that we need to change the media. */ if (dev->flags & IFF_AUTOMEDIA && ei_local->interface_num) { ei_local->interface_num = 0; if (dev->if_port == IF_PORT_10BASET) dev->if_port = IF_PORT_10BASE2; else dev->if_port = IF_PORT_10BASET; etherh_setif(dev); } } /* * Write a block of data out to the 8390 */ static void etherh_block_output (struct net_device *dev, int count, const unsigned char *buf, int start_page) { struct ei_device *ei_local = netdev_priv(dev); unsigned long dma_start; void __iomem *dma_base, *addr; if (ei_local->dmaing) { printk(KERN_ERR "%s: DMAing conflict in etherh_block_input: " " DMAstat %d irqlock %d\n", dev->name, ei_local->dmaing, ei_local->irqlock); return; } /* * Make sure we have a round number of bytes if we're in word mode. */ if (count & 1 && ei_local->word16) count++; ei_local->dmaing = 1; addr = (void *)dev->base_addr; dma_base = etherh_priv(dev)->dma_base; count = (count + 1) & ~1; writeb (E8390_NODMA | E8390_PAGE0 | E8390_START, addr + E8390_CMD); writeb (0x42, addr + EN0_RCNTLO); writeb (0x00, addr + EN0_RCNTHI); writeb (0x42, addr + EN0_RSARLO); writeb (0x00, addr + EN0_RSARHI); writeb (E8390_RREAD | E8390_START, addr + E8390_CMD); udelay (1); writeb (ENISR_RDC, addr + EN0_ISR); writeb (count, addr + EN0_RCNTLO); writeb (count >> 8, addr + EN0_RCNTHI); writeb (0, addr + EN0_RSARLO); writeb (start_page, addr + EN0_RSARHI); writeb (E8390_RWRITE | E8390_START, addr + E8390_CMD); if (ei_local->word16) writesw (dma_base, buf, count >> 1); else writesb (dma_base, buf, count); dma_start = jiffies; while ((readb (addr + 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); etherh_reset (dev); NS8390_init (dev, 1); break; } writeb (ENISR_RDC, addr + EN0_ISR); ei_local->dmaing = 0; } /* * Read a block of data from the 8390 */ static void etherh_block_input (struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) { struct ei_device *ei_local = netdev_priv(dev); unsigned char *buf; void __iomem *dma_base, *addr; if (ei_local->dmaing) { printk(KERN_ERR "%s: DMAing conflict in etherh_block_input: " " DMAstat %d irqlock %d\n", dev->name, ei_local->dmaing, ei_local->irqlock); return; } ei_local->dmaing = 1; addr = (void *)dev->base_addr; dma_base = etherh_priv(dev)->dma_base; buf = skb->data; writeb (E8390_NODMA | E8390_PAGE0 | E8390_START, addr + E8390_CMD); writeb (count, addr + EN0_RCNTLO); writeb (count >> 8, addr + EN0_RCNTHI); writeb (ring_offset, addr + EN0_RSARLO); writeb (ring_offset >> 8, addr + EN0_RSARHI); writeb (E8390_RREAD | E8390_START, addr + E8390_CMD); if (ei_local->word16) { readsw (dma_base, buf, count >> 1); if (count & 1) buf[count - 1] = readb (dma_base); } else readsb (dma_base, buf, count); writeb (ENISR_RDC, addr + EN0_ISR); ei_local->dmaing = 0; } /* * Read a header from the 8390 */ static void etherh_get_header (struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) { struct ei_device *ei_local = netdev_priv(dev); void __iomem *dma_base, *addr; if (ei_local->dmaing) { printk(KERN_ERR "%s: DMAing conflict in etherh_get_header: " " DMAstat %d irqlock %d\n", dev->name, ei_local->dmaing, ei_local->irqlock); return; } ei_local->dmaing = 1; addr = (void *)dev->base_addr; dma_base = etherh_priv(dev)->dma_base; writeb (E8390_NODMA | E8390_PAGE0 | E8390_START, addr + E8390_CMD); writeb (sizeof (*hdr), addr + EN0_RCNTLO); writeb (0, addr + EN0_RCNTHI); writeb (0, addr + EN0_RSARLO); writeb (ring_page, addr + EN0_RSARHI); writeb (E8390_RREAD | E8390_START, addr + E8390_CMD); if (ei_local->word16) readsw (dma_base, hdr, sizeof (*hdr) >> 1); else readsb (dma_base, hdr, sizeof (*hdr)); writeb (ENISR_RDC, addr + EN0_ISR); ei_local->dmaing = 0; } /* * Open/initialize the board. This is called (in the current kernel) * sometime after booting when the 'ifconfig' program is run. * * This routine should set everything up anew at each open, even * registers that "should" only need to be set once at boot, so that * there is non-reboot way to recover if something goes wrong. */ static int etherh_open(struct net_device *dev) { struct ei_device *ei_local = netdev_priv(dev); if (!is_valid_ether_addr(dev->dev_addr)) { printk(KERN_WARNING "%s: invalid ethernet MAC address\n", dev->name); return -EINVAL; } if (request_irq(dev->irq, ei_interrupt, 0, dev->name, dev)) return -EAGAIN; /* * Make sure that we aren't going to change the * media type on the next reset - we are about to * do automedia manually now. */ ei_local->interface_num = 0; /* * If we are doing automedia detection, do it now. * This is more reliable than the 8390's detection. */ if (dev->flags & IFF_AUTOMEDIA) { dev->if_port = IF_PORT_10BASET; etherh_setif(dev); mdelay(1); if (!etherh_getifstat(dev)) { dev->if_port = IF_PORT_10BASE2; etherh_setif(dev); } } else etherh_setif(dev); etherh_reset(dev); ei_open(dev); return 0; } /* * The inverse routine to etherh_open().