| /* drivers/net/ax88796.c |
| * |
| * Copyright 2005,2007 Simtec Electronics |
| * Ben Dooks <ben@simtec.co.uk> |
| * |
| * Asix AX88796 10/100 Ethernet controller support |
| * Based on ne.c, by Donald Becker, et-al. |
| * |
| * 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. |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <linux/errno.h> |
| #include <linux/isapnp.h> |
| #include <linux/init.h> |
| #include <linux/interrupt.h> |
| #include <linux/platform_device.h> |
| #include <linux/delay.h> |
| #include <linux/timer.h> |
| #include <linux/netdevice.h> |
| #include <linux/etherdevice.h> |
| #include <linux/ethtool.h> |
| #include <linux/mii.h> |
| |
| #include <net/ax88796.h> |
| |
| #include <asm/system.h> |
| #include <asm/io.h> |
| |
| static int phy_debug = 0; |
| |
| /* Rename the lib8390.c functions to show that they are in this driver */ |
| #define __ei_open ax_ei_open |
| #define __ei_close ax_ei_close |
| #define __ei_poll ax_ei_poll |
| #define __ei_tx_timeout ax_ei_tx_timeout |
| #define __ei_interrupt ax_ei_interrupt |
| #define ____alloc_ei_netdev ax__alloc_ei_netdev |
| #define __NS8390_init ax_NS8390_init |
| |
| /* force unsigned long back to 'void __iomem *' */ |
| #define ax_convert_addr(_a) ((void __force __iomem *)(_a)) |
| |
| #define ei_inb(_a) readb(ax_convert_addr(_a)) |
| #define ei_outb(_v, _a) writeb(_v, ax_convert_addr(_a)) |
| |
| #define ei_inb_p(_a) ei_inb(_a) |
| #define ei_outb_p(_v, _a) ei_outb(_v, _a) |
| |
| /* define EI_SHIFT() to take into account our register offsets */ |
| #define EI_SHIFT(x) (ei_local->reg_offset[(x)]) |
| |
| /* Ensure we have our RCR base value */ |
| #define AX88796_PLATFORM |
| |
| static unsigned char version[] = "ax88796.c: Copyright 2005,2007 Simtec Electronics\n"; |
| |
| #include "lib8390.c" |
| |
| #define DRV_NAME "ax88796" |
| #define DRV_VERSION "1.00" |
| |
| /* from ne.c */ |
| #define NE_CMD EI_SHIFT(0x00) |
| #define NE_RESET EI_SHIFT(0x1f) |
| #define NE_DATAPORT EI_SHIFT(0x10) |
| |
| #define NE1SM_START_PG 0x20 /* First page of TX buffer */ |
| #define NE1SM_STOP_PG 0x40 /* Last page +1 of RX ring */ |
| #define NESM_START_PG 0x40 /* First page of TX buffer */ |
| #define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ |
| |
| /* device private data */ |
| |
| struct ax_device { |
| struct timer_list mii_timer; |
| spinlock_t mii_lock; |
| struct mii_if_info mii; |
| |
| u32 msg_enable; |
| void __iomem *map2; |
| struct platform_device *dev; |
| struct resource *mem; |
| struct resource *mem2; |
| struct ax_plat_data *plat; |
| |
| unsigned char running; |
| unsigned char resume_open; |
| |
| u32 reg_offsets[0x20]; |
| }; |
| |
| static inline struct ax_device *to_ax_dev(struct net_device *dev) |
| { |
| struct ei_device *ei_local = netdev_priv(dev); |
| return (struct ax_device *)(ei_local+1); |
| } |
| |
| /* ax_initial_check |
| * |
| * do an initial probe for the card to check wether it exists |
| * and is functional |
| */ |
| |
| static int ax_initial_check(struct net_device *dev) |
| { |
| struct ei_device *ei_local = netdev_priv(dev); |
| void __iomem *ioaddr = ei_local->mem; |
| int reg0; |
| int regd; |
| |
| reg0 = ei_inb(ioaddr); |
| if (reg0 == 0xFF) |
| return -ENODEV; |
| |
| ei_outb(E8390_NODMA+E8390_PAGE1+E8390_STOP, ioaddr + E8390_CMD); |
| regd = ei_inb(ioaddr + 0x0d); |
| ei_outb(0xff, ioaddr + 0x0d); |
| ei_outb(E8390_NODMA+E8390_PAGE0, ioaddr + E8390_CMD); |
| ei_inb(ioaddr + EN0_COUNTER0); /* Clear the counter by reading. */ |
| if (ei_inb(ioaddr + EN0_COUNTER0) != 0) { |
| ei_outb(reg0, ioaddr); |
| ei_outb(regd, ioaddr + 0x0d); /* Restore the old values. */ |
| return -ENODEV; |
| } |
| |
| 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 ax_reset_8390(struct net_device *dev) |
| { |
| struct ei_device *ei_local = netdev_priv(dev); |
| unsigned long reset_start_time = jiffies; |
| void __iomem *addr = (void __iomem *)dev->base_addr; |
| |
| if (ei_debug > 1) |
| printk(KERN_DEBUG "resetting the 8390 t=%ld...", jiffies); |
| |
| ei_outb(ei_inb(addr + NE_RESET), addr + NE_RESET); |
| |
| ei_status.txing = 0; |
| ei_status.dmaing = 0; |
| |
| /* This check _should_not_ be necessary, omit eventually. */ |
| while ((ei_inb(addr + EN0_ISR) & ENISR_RESET) == 0) { |
| if (jiffies - reset_start_time > 2*HZ/100) { |
| printk(KERN_WARNING "%s: %s did not complete.\n", |
| __FUNCTION__, dev->name); |
| break; |
| } |
| } |
| |
| ei_outb(ENISR_RESET, addr + EN0_ISR); /* Ack intr. */ |
| } |
| |
| |
| static void ax_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, |
| int ring_page) |
| { |
| struct ei_device *ei_local = netdev_priv(dev); |
| void __iomem *nic_base = ei_local->mem; |
| |
| /* This *shouldn't* happen. If it does, it's the last thing you'll see */ |
| if (ei_status.dmaing) { |
| printk(KERN_EMERG "%s: DMAing conflict in %s [DMAstat:%d][irqlock:%d].\n", |
| dev->name, __FUNCTION__, |
| ei_status.dmaing, ei_status.irqlock); |
| return; |
| } |
| |
| ei_status.dmaing |= 0x01; |
| ei_outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); |
| ei_outb(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO); |
| ei_outb(0, nic_base + EN0_RCNTHI); |
| ei_outb(0, nic_base + EN0_RSARLO); /* On page boundary */ |
| ei_outb(ring_page, nic_base + EN0_RSARHI); |
| ei_outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); |
| |
| if (ei_status.word16) |
| readsw(nic_base + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)>>1); |
| else |
| readsb(nic_base + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)); |
| |
| ei_outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ |
| ei_status.dmaing &= ~0x01; |
| |
| le16_to_cpus(&hdr->count); |
| } |
| |
| |
| /* 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 ei_outb. */ |
| |
| static void ax_block_input(struct net_device *dev, int count, |
| struct sk_buff *skb, int ring_offset) |
| { |
| struct ei_device *ei_local = netdev_priv(dev); |
| void __iomem *nic_base = ei_local->mem; |
| char *buf = skb->data; |
| |
| if (ei_status.dmaing) { |
| printk(KERN_EMERG "%s: DMAing conflict in ax_block_input " |
| "[DMAstat:%d][irqlock:%d].\n", |
| dev->name, ei_status.dmaing, ei_status.irqlock); |
| return; |
| } |
| |
| ei_status.dmaing |= 0x01; |
| |
| ei_outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); |
| ei_outb(count & 0xff, nic_base + EN0_RCNTLO); |
| ei_outb(count >> 8, nic_base + EN0_RCNTHI); |
| ei_outb(ring_offset & 0xff, nic_base + EN0_RSARLO); |
| ei_outb(ring_offset >> 8, nic_base + EN0_RSARHI); |
| ei_outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); |
| |
| if (ei_status.word16) { |
| readsw(nic_base + NE_DATAPORT, buf, count >> 1); |
| if (count & 0x01) |
| buf[count-1] = ei_inb(nic_base + NE_DATAPORT); |
| |
| } else { |
| readsb(nic_base + NE_DATAPORT, buf, count); |
| } |
| |
| ei_status.dmaing &= ~1; |
| } |
| |
| static void ax_block_output(struct net_device *dev, int count, |
| const unsigned char *buf, const int start_page) |
| { |
| struct ei_device *ei_local = netdev_priv(dev); |
| void __iomem *nic_base = ei_local->mem; |
| unsigned long dma_start; |
| |
| /* 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 (ei_status.word16 && (count & 0x01)) |
| count++; |
| |
| /* This *shouldn't* happen. If it does, it's the last thing you'll see */ |
| if (ei_status.dmaing) { |
| printk(KERN_EMERG "%s: DMAing conflict in %s." |
| "[DMAstat:%d][irqlock:%d]\n", |
| dev->name, __FUNCTION__, |
| ei_status.dmaing, ei_status.irqlock); |
| return; |
| } |
| |
| ei_status.dmaing |= 0x01; |
| /* We should already be in page 0, but to be safe... */ |
| ei_outb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD); |
| |
| ei_outb(ENISR_RDC, nic_base + EN0_ISR); |
| |
| /* Now the normal output. */ |
| ei_outb(count & 0xff, nic_base + EN0_RCNTLO); |
| ei_outb(count >> 8, nic_base + EN0_RCNTHI); |
| ei_outb(0x00, nic_base + EN0_RSARLO); |
| ei_outb(start_page, nic_base + EN0_RSARHI); |
| |
| ei_outb(E8390_RWRITE+E8390_START, nic_base + NE_CMD); |
| if (ei_status.word16) { |
| writesw(nic_base + NE_DATAPORT, buf, count>>1); |
| } else { |
| writesb(nic_base + NE_DATAPORT, buf, count); |
| } |
| |
| dma_start = jiffies; |
| |
| while ((ei_inb(nic_base + EN0_ISR) & ENISR_RDC) == 0) { |
| if (jiffies - dma_start > 2*HZ/100) { /* 20ms */ |
| printk(KERN_WARNING "%s: timeout waiting for Tx RDC.\n", dev->name); |
| ax_reset_8390(dev); |
| ax_NS8390_init(dev,1); |
| break; |
| } |
| } |
| |
| ei_outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ |
| ei_status.dmaing &= ~0x01; |
| return; |
| } |
| |
| /* definitions for accessing MII/EEPROM interface */ |
| |
| #define AX_MEMR EI_SHIFT(0x14) |
| #define AX_MEMR_MDC (1<<0) |
| #define AX_MEMR_MDIR (1<<1) |
| #define AX_MEMR_MDI (1<<2) |
| #define AX_MEMR_MDO (1<<3) |
| #define AX_MEMR_EECS (1<<4) |
| #define AX_MEMR_EEI (1<<5) |
| #define AX_MEMR_EEO (1<<6) |
| #define AX_MEMR_EECLK (1<<7) |
| |
| /* ax_mii_ei_outbits |
| * |
| * write the specified set of bits to the phy |
| */ |
| |
| static void |
| ax_mii_ei_outbits(struct net_device *dev, unsigned int bits, int len) |
| { |
| struct ei_device *ei_local = (struct ei_device *) netdev_priv(dev); |
| void __iomem *memr_addr = (void __iomem *)dev->base_addr + AX_MEMR; |
| unsigned int memr; |
| |
| /* clock low, data to output mode */ |
| memr = ei_inb(memr_addr); |
| memr &= ~(AX_MEMR_MDC | AX_MEMR_MDIR); |
| ei_outb(memr, memr_addr); |
| |
| for (len--; len >= 0; len--) { |
| if (bits & (1 << len)) |
| memr |= AX_MEMR_MDO; |
| else |
| memr &= ~AX_MEMR_MDO; |
| |
| ei_outb(memr, memr_addr); |
| |
| /* clock high */ |
| |
| ei_outb(memr | AX_MEMR_MDC, memr_addr); |
| udelay(1); |
| |
| /* clock low */ |
| ei_outb(memr, memr_addr); |
| } |
| |
| /* leaves the clock line low, mdir input */ |
| memr |= AX_MEMR_MDIR; |
| ei_outb(memr, (void __iomem *)dev->base_addr + AX_MEMR); |
| } |
| |
| /* ax_phy_ei_inbits |
| * |
| * read a specified number of bits from the phy |
| */ |
| |
| static unsigned int |
| ax_phy_ei_inbits(struct net_device *dev, int no) |
| { |
| struct ei_device *ei_local = (struct ei_device *) netdev_priv(dev); |
| void __iomem *memr_addr = (void __iomem *)dev->base_addr + AX_MEMR; |
| unsigned int memr; |
| unsigned int result = 0; |
| |
| /* clock low, data to input mode */ |
| memr = ei_inb(memr_addr); |
| memr &= ~AX_MEMR_MDC; |
| memr |= AX_MEMR_MDIR; |
| ei_outb(memr, memr_addr); |
| |
| for (no--; no >= 0; no--) { |
| ei_outb(memr | AX_MEMR_MDC, memr_addr); |
| |
| udelay(1); |
| |
| if (ei_inb(memr_addr) & AX_MEMR_MDI) |
| result |= (1<<no); |
| |
| ei_outb(memr, memr_addr); |
| } |
| |
| return result; |
| } |
| |
| /* ax_phy_issueaddr |
| * |
| * use the low level bit shifting routines to send the address |
| * and command to the specified phy |
| */ |
| |
| static void |
| ax_phy_issueaddr(struct net_device *dev, int phy_addr, int reg, int opc) |
| { |
| if (phy_debug) |
| pr_debug("%s: dev %p, %04x, %04x, %d\n", |
| __FUNCTION__, dev, phy_addr, reg, opc); |
| |
| ax_mii_ei_outbits(dev, 0x3f, 6); /* pre-amble */ |
| ax_mii_ei_outbits(dev, 1, 2); /* frame-start */ |
| ax_mii_ei_outbits(dev, opc, 2); /* op code */ |
| ax_mii_ei_outbits(dev, phy_addr, 5); /* phy address */ |
| ax_mii_ei_outbits(dev, reg, 5); /* reg address */ |
| } |
| |
| static int |
| ax_phy_read(struct net_device *dev, int phy_addr, int reg) |
| { |
| struct ei_device *ei_local = (struct ei_device *) netdev_priv(dev); |
| unsigned long flags; |
| unsigned int result; |
| |
| spin_lock_irqsave(&ei_local->page_lock, flags); |
| |
| ax_phy_issueaddr(dev, phy_addr, reg, 2); |
| |
| result = ax_phy_ei_inbits(dev, 17); |
| result &= ~(3<<16); |
| |
| spin_unlock_irqrestore(&ei_local->page_lock, flags); |
| |
| if (phy_debug) |
| pr_debug("%s: %04x.%04x => read %04x\n", __FUNCTION__, |
| phy_addr, reg, result); |
| |
| return result; |
| } |
| |
| static void |
| ax_phy_write(struct net_device *dev, int phy_addr, int reg, int value) |
| { |
| struct ei_device *ei = (struct ei_device *) netdev_priv(dev); |
| unsigned long flags; |
| |
| printk(KERN_DEBUG "%s: %p, %04x, %04x %04x\n", |
| __FUNCTION__, dev, phy_addr, reg, value); |
| |
| spin_lock_irqsave(&ei->page_lock, flags); |
| |
| ax_phy_issueaddr(dev, phy_addr, reg, 1); |
| ax_mii_ei_outbits(dev, 2, 2); /* send TA */ |
| ax_mii_ei_outbits(dev, value, 16); |
| |
| spin_unlock_irqrestore(&ei->page_lock, flags); |
| } |
| |
| static void ax_mii_expiry(unsigned long data) |
| { |
| struct net_device *dev = (struct net_device *)data; |
| struct ax_device *ax = to_ax_dev(dev); |
| unsigned long flags; |
| |
| spin_lock_irqsave(&ax->mii_lock, flags); |
| mii_check_media(&ax->mii, netif_msg_link(ax), 0); |
| spin_unlock_irqrestore(&ax->mii_lock, flags); |
| |
| if (ax->running) { |
| ax->mii_timer.expires = jiffies + HZ*2; |
| add_timer(&ax->mii_timer); |
| } |
| } |
| |
| static int ax_open(struct net_device *dev) |
| { |
| struct ax_device *ax = to_ax_dev(dev); |
| struct ei_device *ei_local = netdev_priv(dev); |
| int ret; |
| |
| dev_dbg(&ax->dev->dev, "%s: open\n", dev->name); |
| |
| ret = request_irq(dev->irq, ax_ei_interrupt, 0, dev->name, dev); |
| if (ret) |
| return ret; |
| |
| ret = ax_ei_open(dev); |
| if (ret) |
| return ret; |
| |
| /* turn the phy on (if turned off) */ |
| |
| ei_outb(ax->plat->gpoc_val, ei_local->mem + EI_SHIFT(0x17)); |
| ax->running = 1; |
| |
| /* start the MII timer */ |
| |
| init_timer(&ax->mii_timer); |
| |
| ax->mii_timer.expires = jiffies+1; |
| ax->mii_timer.data = (unsigned long) dev; |
| ax->mii_timer.function = ax_mii_expiry; |
| |
| add_timer(&ax->mii_timer); |
| |
| return 0; |
| } |
| |
| static int ax_close(struct net_device *dev) |
| { |
| struct ax_device *ax = to_ax_dev(dev); |
| struct ei_device *ei_local = netdev_priv(dev); |
| |
| dev_dbg(&ax->dev->dev, "%s: close\n", dev->name); |
| |
| /* turn the phy off */ |
| |
| ei_outb(ax->plat->gpoc_val | (1<<6), |
| ei_local->mem + EI_SHIFT(0x17)); |
| |
| ax->running = 0; |
| wmb(); |
| |
| del_timer_sync(&ax->mii_timer); |
| ax_ei_close(dev); |
| |
| free_irq(dev->irq, dev); |
| return 0; |
| } |
| |
| static int ax_ioctl(struct net_device *dev, struct ifreq *req, int cmd) |
| { |
| struct ax_device *ax = to_ax_dev(dev); |
| unsigned long flags; |
| int rc; |
| |
| if (!netif_running(dev)) |
| return -EINVAL; |
| |
| spin_lock_irqsave(&ax->mii_lock, flags); |
| rc = generic_mii_ioctl(&ax->mii, if_mii(req), cmd, NULL); |
| spin_unlock_irqrestore(&ax->mii_lock, flags); |
| |
| return rc; |
| } |
| |
| /* ethtool ops */ |
| |
| static void ax_get_drvinfo(struct net_device *dev, |
| struct ethtool_drvinfo *info) |
| { |
| struct ax_device *ax = to_ax_dev(dev); |
| |
| strcpy(info->driver, DRV_NAME); |
| strcpy(info->version, DRV_VERSION); |
| strcpy(info->bus_info, ax->dev->name); |
| } |
| |
| static int ax_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| { |
| struct ax_device *ax = to_ax_dev(dev); |
| unsigned long flags; |
| |
| spin_lock_irqsave(&ax->mii_lock, flags); |
| mii_ethtool_gset(&ax->mii, cmd); |
| spin_lock_irqsave(&ax->mii_lock, flags); |
| |
| return 0; |
| } |
| |
| static int ax_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| { |
| struct ax_device *ax = to_ax_dev(dev); |
| unsigned long flags; |
| int rc; |
| |
| spin_lock_irqsave(&ax->mii_lock, flags); |
| rc = mii_ethtool_sset(&ax->mii, cmd); |
| spin_lock_irqsave(&ax->mii_lock, flags); |
| |
| return rc; |
| } |
| |
| static int ax_nway_reset(struct net_device *dev) |
| { |
| struct ax_device *ax = to_ax_dev(dev); |
| return mii_nway_restart(&ax->mii); |
| } |
| |
| static u32 ax_get_link(struct net_device *dev) |
| { |
| struct ax_device *ax = to_ax_dev(dev); |
| return mii_link_ok(&ax->mii); |
| } |
| |
| static const struct ethtool_ops ax_ethtool_ops = { |
| .get_drvinfo = ax_get_drvinfo, |
| .get_settings = ax_get_settings, |
| .set_settings = ax_set_settings, |
| .nway_reset = ax_nway_reset, |
| .get_link = ax_get_link, |
| .get_perm_addr = ethtool_op_get_perm_addr, |
| }; |
| |
| /* setup code */ |
| |
| static void ax_initial_setup(struct net_device *dev, struct ei_device *ei_local) |
| { |
| void __iomem *ioaddr = ei_local->mem; |
| struct ax_device *ax = to_ax_dev(dev); |
| |
| /* Select page 0*/ |
| ei_outb(E8390_NODMA+E8390_PAGE0+E8390_STOP, ioaddr + E8390_CMD); |
| |
| /* set to byte access */ |
| ei_outb(ax->plat->dcr_val & ~1, ioaddr + EN0_DCFG); |
| ei_outb(ax->plat->gpoc_val, ioaddr + EI_SHIFT(0x17)); |
| } |
| |
| /* ax_init_dev |
| * |
| * initialise the specified device, taking care to note the MAC |
| * address it may already have (if configured), ensure |
| * the device is ready to be used by lib8390.c and registerd with |
| * the network layer. |
| */ |
| |
| static int ax_init_dev(struct net_device *dev, int first_init) |
| { |
| struct ei_device *ei_local = netdev_priv(dev); |
| struct ax_device *ax = to_ax_dev(dev); |
| void __iomem *ioaddr = ei_local->mem; |
| unsigned int start_page; |
| unsigned int stop_page; |
| int ret; |
| int i; |
| |
| ret = ax_initial_check(dev); |
| if (ret) |
| goto err_out; |
| |
| /* setup goes here */ |
| |
| ax_initial_setup(dev, ei_local); |
| |
| /* read the mac from the card prom if we need it */ |
| |
| if (first_init && ax->plat->flags & AXFLG_HAS_EEPROM) { |
| unsigned char SA_prom[32]; |
| |
| for(i = 0; i < sizeof(SA_prom); i+=2) { |
| SA_prom[i] = ei_inb(ioaddr + NE_DATAPORT); |
| SA_prom[i+1] = ei_inb(ioaddr + NE_DATAPORT); |
| } |
| |
| if (ax->plat->wordlength == 2) |
| for (i = 0; i < 16; i++) |
| SA_prom[i] = SA_prom[i+i]; |
| |
| memcpy(dev->dev_addr, SA_prom, 6); |
| } |
| |
| if (ax->plat->wordlength == 2) { |
| /* We must set the 8390 for word mode. */ |
| ei_outb(ax->plat->dcr_val, ei_local->mem + EN0_DCFG); |
| start_page = NESM_START_PG; |
| stop_page = NESM_STOP_PG; |
| } else { |
| start_page = NE1SM_START_PG; |
| stop_page = NE1SM_STOP_PG; |
| } |
| |
| /* load the mac-address from the device if this is the |
| * first time we've initialised */ |
| |
| if (first_init && ax->plat->flags & AXFLG_MAC_FROMDEV) { |
| ei_outb(E8390_NODMA + E8390_PAGE1 + E8390_STOP, |
| ei_local->mem + E8390_CMD); /* 0x61 */ |
| |
| for (i = 0 ; i < ETHER_ADDR_LEN ; i++) |
| dev->dev_addr[i] = ei_inb(ioaddr + EN1_PHYS_SHIFT(i)); |
| } |
| |
| ax_reset_8390(dev); |
| |
| ei_status.name = "AX88796"; |
| ei_status.tx_start_page = start_page; |
| ei_status.stop_page = stop_page; |
| ei_status.word16 = (ax->plat->wordlength == 2); |
| ei_status.rx_start_page = start_page + TX_PAGES; |
| |
| #ifdef PACKETBUF_MEMSIZE |
| /* Allow the packet buffer size to be overridden by know-it-alls. */ |
| ei_status.stop_page = ei_status.tx_start_page + PACKETBUF_MEMSIZE; |
| #endif |
| |
| ei_status.reset_8390 = &ax_reset_8390; |
| ei_status.block_input = &ax_block_input; |
| ei_status.block_output = &ax_block_output; |
| ei_status.get_8390_hdr = &ax_get_8390_hdr; |
| ei_status.priv = 0; |
| |
| dev->open = ax_open; |
| dev->stop = ax_close; |
| dev->do_ioctl = ax_ioctl; |
| dev->ethtool_ops = &ax_ethtool_ops; |
| |
| ax->msg_enable = NETIF_MSG_LINK; |
| ax->mii.phy_id_mask = 0x1f; |
| ax->mii.reg_num_mask = 0x1f; |
| ax->mii.phy_id = 0x10; /* onboard phy */ |
| ax->mii.force_media = 0; |
| ax->mii.full_duplex = 0; |
| ax->mii.mdio_read = ax_phy_read; |
| ax->mii.mdio_write = ax_phy_write; |
| ax->mii.dev = dev; |
| |
| #ifdef CONFIG_NET_POLL_CONTROLLER |
| dev->poll_controller = ax_ei_poll; |
| #endif |
| ax_NS8390_init(dev, 0); |
| |
| if (first_init) { |
| printk("AX88796: %dbit, irq %d, %lx, MAC: ", |
| ei_status.word16 ? 16:8, dev->irq, dev->base_addr); |
| |
| for (i = 0; i < ETHER_ADDR_LEN; i++) |
| printk("%2.2x%c", dev->dev_addr[i], |
| (i < (ETHER_ADDR_LEN-1) ? ':' : ' ')); |
| |
| printk("\n"); |
| } |
| |
| ret = register_netdev(dev); |
| if (ret) |
| goto out_irq; |
| |
| return 0; |
| |
| out_irq: |
| /* cleanup irq */ |
| free_irq(dev->irq, dev); |
| err_out: |
| return ret; |
| } |
| |
| static int ax_remove(struct platform_device *_dev) |
| { |
| struct net_device *dev = platform_get_drvdata(_dev); |
| struct ax_device *ax; |
| |
| ax = to_ax_dev(dev); |
| |
| unregister_netdev(dev); |
| free_irq(dev->irq, dev); |
| |
| iounmap(ei_status.mem); |
| release_resource(ax->mem); |
| kfree(ax->mem); |
| |
| if (ax->map2) { |
| iounmap(ax->map2); |
| release_resource(ax->mem2); |
| kfree(ax->mem2); |
| } |
| |
| free_netdev(dev); |
| |
| return 0; |
| } |
| |
| /* ax_probe |
| * |
| * This is the entry point when the platform device system uses to |
| * notify us of a new device to attach to. Allocate memory, find |
| * the resources and information passed, and map the necessary registers. |
| */ |
| |
| static int ax_probe(struct platform_device *pdev) |
| { |
| struct net_device *dev; |
| struct ax_device *ax; |
| struct resource *res; |
| size_t size; |
| int ret; |
| |
| dev = ax__alloc_ei_netdev(sizeof(struct ax_device)); |
| if (dev == NULL) |
| return -ENOMEM; |
| |
| /* ok, let's setup our device */ |
| ax = to_ax_dev(dev); |
| |
| memset(ax, 0, sizeof(struct ax_device)); |
| |
| spin_lock_init(&ax->mii_lock); |
| |
| ax->dev = pdev; |
| ax->plat = pdev->dev.platform_data; |
| platform_set_drvdata(pdev, dev); |
| |
| ei_status.rxcr_base = ax->plat->rcr_val; |
| |
| /* find the platform resources */ |
| |
| dev->irq = platform_get_irq(pdev, 0); |
| if (dev->irq < 0) { |
| dev_err(&pdev->dev, "no IRQ specified\n"); |
| ret = -ENXIO; |
| goto exit_mem; |
| } |
| |
| res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| if (res == NULL) { |
| dev_err(&pdev->dev, "no MEM specified\n"); |
| ret = -ENXIO; |
| goto exit_mem; |
| } |
| |
| size = (res->end - res->start) + 1; |
| |
| /* setup the register offsets from either the platform data |
| * or by using the size of the resource provided */ |
| |
| if (ax->plat->reg_offsets) |
| ei_status.reg_offset = ax->plat->reg_offsets; |
| else { |
| ei_status.reg_offset = ax->reg_offsets; |
| for (ret = 0; ret < 0x18; ret++) |
| ax->reg_offsets[ret] = (size / 0x18) * ret; |
| } |
| |
| ax->mem = request_mem_region(res->start, size, pdev->name); |
| if (ax->mem == NULL) { |
| dev_err(&pdev->dev, "cannot reserve registers\n"); |
| ret = -ENXIO; |
| goto exit_mem; |
| } |
| |
| ei_status.mem = ioremap(res->start, size); |
| dev->base_addr = (unsigned long)ei_status.mem; |
| |
| if (ei_status.mem == NULL) { |
| dev_err(&pdev->dev, "Cannot ioremap area (%08zx,%08zx)\n", |
| res->start, res->end); |
| |
| ret = -ENXIO; |
| goto exit_req; |
| } |
| |
| /* look for reset area */ |
| |
| res = platform_get_resource(pdev, IORESOURCE_MEM, 1); |
| if (res == NULL) { |
| if (!ax->plat->reg_offsets) { |
| for (ret = 0; ret < 0x20; ret++) |
| ax->reg_offsets[ret] = (size / 0x20) * ret; |
| } |
| |
| ax->map2 = NULL; |
| } else { |
| size = (res->end - res->start) + 1; |
| |
| ax->mem2 = request_mem_region(res->start, size, pdev->name); |
| if (ax->mem == NULL) { |
| dev_err(&pdev->dev, "cannot reserve registers\n"); |
| ret = -ENXIO; |
| goto exit_mem1; |
| } |
| |
| ax->map2 = ioremap(res->start, size); |
| if (ax->map2 == NULL) { |
| dev_err(&pdev->dev, "cannot map reset register"); |
| ret = -ENXIO; |
| goto exit_mem2; |
| } |
| |
| ei_status.reg_offset[0x1f] = ax->map2 - ei_status.mem; |
| } |
| |
| /* got resources, now initialise and register device */ |
| |
| ret = ax_init_dev(dev, 1); |
| if (!ret) |
| return 0; |
| |
| if (ax->map2 == NULL) |
| goto exit_mem1; |
| |
| iounmap(ax->map2); |
| |
| exit_mem2: |
| release_resource(ax->mem2); |
| kfree(ax->mem2); |
| |
| exit_mem1: |
| iounmap(ei_status.mem); |
| |
| exit_req: |
| release_resource(ax->mem); |
| kfree(ax->mem); |
| |
| exit_mem: |
| free_netdev(dev); |
| |
| return ret; |
| } |
| |
| /* suspend and resume */ |
| |
| #ifdef CONFIG_PM |
| static int ax_suspend(struct platform_device *dev, pm_message_t state) |
| { |
| struct net_device *ndev = platform_get_drvdata(dev); |
| struct ax_device *ax = to_ax_dev(ndev); |
| |
| ax->resume_open = ax->running; |
| |
| netif_device_detach(ndev); |
| ax_close(ndev); |
| |
| return 0; |
| } |
| |
| static int ax_resume(struct platform_device *pdev) |
| { |
| struct net_device *ndev = platform_get_drvdata(pdev); |
| struct ax_device *ax = to_ax_dev(ndev); |
| |
| ax_initial_setup(ndev, netdev_priv(ndev)); |
| ax_NS8390_init(ndev, ax->resume_open); |
| netif_device_attach(ndev); |
| |
| if (ax->resume_open) |
| ax_open(ndev); |
| |
| return 0; |
| } |
| |
| #else |
| #define ax_suspend NULL |
| #define ax_resume NULL |
| #endif |
| |
| static struct platform_driver axdrv = { |
| .driver = { |
| .name = "ax88796", |
| .owner = THIS_MODULE, |
| }, |
| .probe = ax_probe, |
| .remove = ax_remove, |
| .suspend = ax_suspend, |
| .resume = ax_resume, |
| }; |
| |
| static int __init axdrv_init(void) |
| { |
| return platform_driver_register(&axdrv); |
| } |
| |
| static void __exit axdrv_exit(void) |
| { |
| platform_driver_unregister(&axdrv); |
| } |
| |
| module_init(axdrv_init); |
| module_exit(axdrv_exit); |
| |
| MODULE_DESCRIPTION("AX88796 10/100 Ethernet platform driver"); |
| MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>"); |
| MODULE_LICENSE("GPL v2"); |