diff options
Diffstat (limited to 'drivers/net/dm9000.c')
| -rw-r--r-- | drivers/net/dm9000.c | 1705 |
1 files changed, 0 insertions, 1705 deletions
diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c deleted file mode 100644 index 8ef31dc4704d..000000000000 --- a/drivers/net/dm9000.c +++ /dev/null @@ -1,1705 +0,0 @@ -/* - * Davicom DM9000 Fast Ethernet driver for Linux. - * Copyright (C) 1997 Sten Wang - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * (C) Copyright 1997-1998 DAVICOM Semiconductor,Inc. All Rights Reserved. - * - * Additional updates, Copyright: - * Ben Dooks <ben@simtec.co.uk> - * Sascha Hauer <s.hauer@pengutronix.de> - */ - -#include <linux/module.h> -#include <linux/ioport.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/skbuff.h> -#include <linux/spinlock.h> -#include <linux/crc32.h> -#include <linux/mii.h> -#include <linux/ethtool.h> -#include <linux/dm9000.h> -#include <linux/delay.h> -#include <linux/platform_device.h> -#include <linux/irq.h> -#include <linux/slab.h> - -#include <asm/delay.h> -#include <asm/irq.h> -#include <asm/io.h> - -#include "dm9000.h" - -/* Board/System/Debug information/definition ---------------- */ - -#define DM9000_PHY 0x40 /* PHY address 0x01 */ - -#define CARDNAME "dm9000" -#define DRV_VERSION "1.31" - -/* - * Transmit timeout, default 5 seconds. - */ -static int watchdog = 5000; -module_param(watchdog, int, 0400); -MODULE_PARM_DESC(watchdog, "transmit timeout in milliseconds"); - -/* DM9000 register address locking. - * - * The DM9000 uses an address register to control where data written - * to the data register goes. This means that the address register - * must be preserved over interrupts or similar calls. - * - * During interrupt and other critical calls, a spinlock is used to - * protect the system, but the calls themselves save the address - * in the address register in case they are interrupting another - * access to the device. - * - * For general accesses a lock is provided so that calls which are - * allowed to sleep are serialised so that the address register does - * not need to be saved. This lock also serves to serialise access - * to the EEPROM and PHY access registers which are shared between - * these two devices. - */ - -/* The driver supports the original DM9000E, and now the two newer - * devices, DM9000A and DM9000B. - */ - -enum dm9000_type { - TYPE_DM9000E, /* original DM9000 */ - TYPE_DM9000A, - TYPE_DM9000B -}; - -/* Structure/enum declaration ------------------------------- */ -typedef struct board_info { - - void __iomem *io_addr; /* Register I/O base address */ - void __iomem *io_data; /* Data I/O address */ - u16 irq; /* IRQ */ - - u16 tx_pkt_cnt; - u16 queue_pkt_len; - u16 queue_start_addr; - u16 queue_ip_summed; - u16 dbug_cnt; - u8 io_mode; /* 0:word, 2:byte */ - u8 phy_addr; - u8 imr_all; - - unsigned int flags; - unsigned int in_suspend :1; - unsigned int wake_supported :1; - int debug_level; - - enum dm9000_type type; - - void (*inblk)(void __iomem *port, void *data, int length); - void (*outblk)(void __iomem *port, void *data, int length); - void (*dumpblk)(void __iomem *port, int length); - - struct device *dev; /* parent device */ - - struct resource *addr_res; /* resources found */ - struct resource *data_res; - struct resource *addr_req; /* resources requested */ - struct resource *data_req; - struct resource *irq_res; - - int irq_wake; - - struct mutex addr_lock; /* phy and eeprom access lock */ - - struct delayed_work phy_poll; - struct net_device *ndev; - - spinlock_t lock; - - struct mii_if_info mii; - u32 msg_enable; - u32 wake_state; - - int ip_summed; -} board_info_t; - -/* debug code */ - -#define dm9000_dbg(db, lev, msg...) do { \ - if ((lev) < CONFIG_DM9000_DEBUGLEVEL && \ - (lev) < db->debug_level) { \ - dev_dbg(db->dev, msg); \ - } \ -} while (0) - -static inline board_info_t *to_dm9000_board(struct net_device *dev) -{ - return netdev_priv(dev); -} - -/* DM9000 network board routine ---------------------------- */ - -static void -dm9000_reset(board_info_t * db) -{ - dev_dbg(db->dev, "resetting device\n"); - - /* RESET device */ - writeb(DM9000_NCR, db->io_addr); - udelay(200); - writeb(NCR_RST, db->io_data); - udelay(200); -} - -/* - * Read a byte from I/O port - */ -static u8 -ior(board_info_t * db, int reg) -{ - writeb(reg, db->io_addr); - return readb(db->io_data); -} - -/* - * Write a byte to I/O port - */ - -static void -iow(board_info_t * db, int reg, int value) -{ - writeb(reg, db->io_addr); - writeb(value, db->io_data); -} - -/* routines for sending block to chip */ - -static void dm9000_outblk_8bit(void __iomem *reg, void *data, int count) -{ - writesb(reg, data, count); -} - -static void dm9000_outblk_16bit(void __iomem *reg, void *data, int count) -{ - writesw(reg, data, (count+1) >> 1); -} - -static void dm9000_outblk_32bit(void __iomem *reg, void *data, int count) -{ - writesl(reg, data, (count+3) >> 2); -} - -/* input block from chip to memory */ - -static void dm9000_inblk_8bit(void __iomem *reg, void *data, int count) -{ - readsb(reg, data, count); -} - - -static void dm9000_inblk_16bit(void __iomem *reg, void *data, int count) -{ - readsw(reg, data, (count+1) >> 1); -} - -static void dm9000_inblk_32bit(void __iomem *reg, void *data, int count) -{ - readsl(reg, data, (count+3) >> 2); -} - -/* dump block from chip to null */ - -static void dm9000_dumpblk_8bit(void __iomem *reg, int count) -{ - int i; - int tmp; - - for (i = 0; i < count; i++) - tmp = readb(reg); -} - -static void dm9000_dumpblk_16bit(void __iomem *reg, int count) -{ - int i; - int tmp; - - count = (count + 1) >> 1; - - for (i = 0; i < count; i++) - tmp = readw(reg); -} - -static void dm9000_dumpblk_32bit(void __iomem *reg, int count) -{ - int i; - int tmp; - - count = (count + 3) >> 2; - - for (i = 0; i < count; i++) - tmp = readl(reg); -} - -/* dm9000_set_io - * - * select the specified set of io routines to use with the - * device - */ - -static void dm9000_set_io(struct board_info *db, int byte_width) -{ - /* use the size of the data resource to work out what IO - * routines we want to use - */ - - switch (byte_width) { - case 1: - db->dumpblk = dm9000_dumpblk_8bit; - db->outblk = dm9000_outblk_8bit; - db->inblk = dm9000_inblk_8bit; - break; - - - case 3: - dev_dbg(db->dev, ": 3 byte IO, falling back to 16bit\n"); - case 2: - db->dumpblk = dm9000_dumpblk_16bit; - db->outblk = dm9000_outblk_16bit; - db->inblk = dm9000_inblk_16bit; - break; - - case 4: - default: - db->dumpblk = dm9000_dumpblk_32bit; - db->outblk = dm9000_outblk_32bit; - db->inblk = dm9000_inblk_32bit; - break; - } -} - -static void dm9000_schedule_poll(board_info_t *db) -{ - if (db->type == TYPE_DM9000E) - schedule_delayed_work(&db->phy_poll, HZ * 2); -} - -static int dm9000_ioctl(struct net_device *dev, struct ifreq *req, int cmd) -{ - board_info_t *dm = to_dm9000_board(dev); - - if (!netif_running(dev)) - return -EINVAL; - - return generic_mii_ioctl(&dm->mii, if_mii(req), cmd, NULL); -} - -static unsigned int -dm9000_read_locked(board_info_t *db, int reg) -{ - unsigned long flags; - unsigned int ret; - - spin_lock_irqsave(&db->lock, flags); - ret = ior(db, reg); - spin_unlock_irqrestore(&db->lock, flags); - - return ret; -} - -static int dm9000_wait_eeprom(board_info_t *db) -{ - unsigned int status; - int timeout = 8; /* wait max 8msec */ - - /* The DM9000 data sheets say we should be able to - * poll the ERRE bit in EPCR to wait for the EEPROM - * operation. From testing several chips, this bit - * does not seem to work. - * - * We attempt to use the bit, but fall back to the - * timeout (which is why we do not return an error - * on expiry) to say that the EEPROM operation has - * completed. - */ - - while (1) { - status = dm9000_read_locked(db, DM9000_EPCR); - - if ((status & EPCR_ERRE) == 0) - break; - - msleep(1); - - if (timeout-- < 0) { - dev_dbg(db->dev, "timeout waiting EEPROM\n"); - break; - } - } - - return 0; -} - -/* - * Read a word data from EEPROM - */ -static void -dm9000_read_eeprom(board_info_t *db, int offset, u8 *to) -{ - unsigned long flags; - - if (db->flags & DM9000_PLATF_NO_EEPROM) { - to[0] = 0xff; - to[1] = 0xff; - return; - } - - mutex_lock(&db->addr_lock); - - spin_lock_irqsave(&db->lock, flags); - - iow(db, DM9000_EPAR, offset); - iow(db, DM9000_EPCR, EPCR_ERPRR); - - spin_unlock_irqrestore(&db->lock, flags); - - dm9000_wait_eeprom(db); - - /* delay for at-least 150uS */ - msleep(1); - - spin_lock_irqsave(&db->lock, flags); - - iow(db, DM9000_EPCR, 0x0); - - to[0] = ior(db, DM9000_EPDRL); - to[1] = ior(db, DM9000_EPDRH); - - spin_unlock_irqrestore(&db->lock, flags); - - mutex_unlock(&db->addr_lock); -} - -/* - * Write a word data to SROM - */ -static void -dm9000_write_eeprom(board_info_t *db, int offset, u8 *data) -{ - unsigned long flags; - - if (db->flags & DM9000_PLATF_NO_EEPROM) - return; - - mutex_lock(&db->addr_lock); - - spin_lock_irqsave(&db->lock, flags); - iow(db, DM9000_EPAR, offset); - iow(db, DM9000_EPDRH, data[1]); - iow(db, DM9000_EPDRL, data[0]); - iow(db, DM9000_EPCR, EPCR_WEP | EPCR_ERPRW); - spin_unlock_irqrestore(&db->lock, flags); - - dm9000_wait_eeprom(db); - - mdelay(1); /* wait at least 150uS to clear */ - - spin_lock_irqsave(&db->lock, flags); - iow(db, DM9000_EPCR, 0); - spin_unlock_irqrestore(&db->lock, flags); - - mutex_unlock(&db->addr_lock); -} - -/* ethtool ops */ - -static void dm9000_get_drvinfo(struct net_device *dev, - struct ethtool_drvinfo *info) -{ - board_info_t *dm = to_dm9000_board(dev); - - strcpy(info->driver, CARDNAME); - strcpy(info->version, DRV_VERSION); - strcpy(info->bus_info, to_platform_device(dm->dev)->name); -} - -static u32 dm9000_get_msglevel(struct net_device *dev) -{ - board_info_t *dm = to_dm9000_board(dev); - - return dm->msg_enable; -} - -static void dm9000_set_msglevel(struct net_device *dev, u32 value) -{ - board_info_t *dm = to_dm9000_board(dev); - - dm->msg_enable = value; -} - -static int dm9000_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) -{ - board_info_t *dm = to_dm9000_board(dev); - - mii_ethtool_gset(&dm->mii, cmd); - return 0; -} - -static int dm9000_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) -{ - board_info_t *dm = to_dm9000_board(dev); - - return mii_ethtool_sset(&dm->mii, cmd); -} - -static int dm9000_nway_reset(struct net_device *dev) -{ - board_info_t *dm = to_dm9000_board(dev); - return mii_nway_restart(&dm->mii); -} - -static int dm9000_set_features(struct net_device *dev, u32 features) -{ - board_info_t *dm = to_dm9000_board(dev); - u32 changed = dev->features ^ features; - unsigned long flags; - - if (!(changed & NETIF_F_RXCSUM)) - return 0; - - spin_lock_irqsave(&dm->lock, flags); - iow(dm, DM9000_RCSR, (features & NETIF_F_RXCSUM) ? RCSR_CSUM : 0); - spin_unlock_irqrestore(&dm->lock, flags); - - return 0; -} - -static u32 dm9000_get_link(struct net_device *dev) -{ - board_info_t *dm = to_dm9000_board(dev); - u32 ret; - - if (dm->flags & DM9000_PLATF_EXT_PHY) - ret = mii_link_ok(&dm->mii); - else - ret = dm9000_read_locked(dm, DM9000_NSR) & NSR_LINKST ? 1 : 0; - - return ret; -} - -#define DM_EEPROM_MAGIC (0x444D394B) - -static int dm9000_get_eeprom_len(struct net_device *dev) -{ - return 128; -} - -static int dm9000_get_eeprom(struct net_device *dev, - struct ethtool_eeprom *ee, u8 *data) -{ - board_info_t *dm = to_dm9000_board(dev); - int offset = ee->offset; - int len = ee->len; - int i; - - /* EEPROM access is aligned to two bytes */ - - if ((len & 1) != 0 || (offset & 1) != 0) - return -EINVAL; - - if (dm->flags & DM9000_PLATF_NO_EEPROM) - return -ENOENT; - - ee->magic = DM_EEPROM_MAGIC; - - for (i = 0; i < len; i += 2) - dm9000_read_eeprom(dm, (offset + i) / 2, data + i); - - return 0; -} - -static int dm9000_set_eeprom(struct net_device *dev, - struct ethtool_eeprom *ee, u8 *data) -{ - board_info_t *dm = to_dm9000_board(dev); - int offset = ee->offset; - int len = ee->len; - int done; - - /* EEPROM access is aligned to two bytes */ - - if (dm->flags & DM9000_PLATF_NO_EEPROM) - return -ENOENT; - - if (ee->magic != DM_EEPROM_MAGIC) - return -EINVAL; - - while (len > 0) { - if (len & 1 || offset & 1) { - int which = offset & 1; - u8 tmp[2]; - - dm9000_read_eeprom(dm, offset / 2, tmp); - tmp[which] = *data; - dm9000_write_eeprom(dm, offset / 2, tmp); - - done = 1; - } else { - dm9000_write_eeprom(dm, offset / 2, data); - done = 2; - } - - data += done; - offset += done; - len -= done; - } - - return 0; -} - -static void dm9000_get_wol(struct net_device *dev, struct ethtool_wolinfo *w) -{ - board_info_t *dm = to_dm9000_board(dev); - - memset(w, 0, sizeof(struct ethtool_wolinfo)); - - /* note, we could probably support wake-phy too */ - w->supported = dm->wake_supported ? WAKE_MAGIC : 0; - w->wolopts = dm->wake_state; -} - -static int dm9000_set_wol(struct net_device *dev, struct ethtool_wolinfo *w) -{ - board_info_t *dm = to_dm9000_board(dev); - unsigned long flags; - u32 opts = w->wolopts; - u32 wcr = 0; - - if (!dm->wake_supported) - return -EOPNOTSUPP; - - if (opts & ~WAKE_MAGIC) - return -EINVAL; - - if (opts & WAKE_MAGIC) - wcr |= WCR_MAGICEN; - - mutex_lock(&dm->addr_lock); - - spin_lock_irqsave(&dm->lock, flags); - iow(dm, DM9000_WCR, wcr); - spin_unlock_irqrestore(&dm->lock, flags); - - mutex_unlock(&dm->addr_lock); - - if (dm->wake_state != opts) { - /* change in wol state, update IRQ state */ - - if (!dm->wake_state) - irq_set_irq_wake(dm->irq_wake, 1); - else if (dm->wake_state & !opts) - irq_set_irq_wake(dm->irq_wake, 0); - } - - dm->wake_state = opts; - return 0; -} - -static const struct ethtool_ops dm9000_ethtool_ops = { - .get_drvinfo = dm9000_get_drvinfo, - .get_settings = dm9000_get_settings, - .set_settings = dm9000_set_settings, - .get_msglevel = dm9000_get_msglevel, - .set_msglevel = dm9000_set_msglevel, - .nway_reset = dm9000_nway_reset, - .get_link = dm9000_get_link, - .get_wol = dm9000_get_wol, - .set_wol = dm9000_set_wol, - .get_eeprom_len = dm9000_get_eeprom_len, - .get_eeprom = dm9000_get_eeprom, - .set_eeprom = dm9000_set_eeprom, -}; - -static void dm9000_show_carrier(board_info_t *db, - unsigned carrier, unsigned nsr) -{ - struct net_device *ndev = db->ndev; - unsigned ncr = dm9000_read_locked(db, DM9000_NCR); - - if (carrier) - dev_info(db->dev, "%s: link up, %dMbps, %s-duplex, no LPA\n", - ndev->name, (nsr & NSR_SPEED) ? 10 : 100, - (ncr & NCR_FDX) ? "full" : "half"); - else - dev_info(db->dev, "%s: link down\n", ndev->name); -} - -static void -dm9000_poll_work(struct work_struct *w) -{ - struct delayed_work *dw = to_delayed_work(w); - board_info_t *db = container_of(dw, board_info_t, phy_poll); - struct net_device *ndev = db->ndev; - - if (db->flags & DM9000_PLATF_SIMPLE_PHY && - !(db->flags & DM9000_PLATF_EXT_PHY)) { - unsigned nsr = dm9000_read_locked(db, DM9000_NSR); - unsigned old_carrier = netif_carrier_ok(ndev) ? 1 : 0; - unsigned new_carrier; - - new_carrier = (nsr & NSR_LINKST) ? 1 : 0; - - if (old_carrier != new_carrier) { - if (netif_msg_link(db)) - dm9000_show_carrier(db, new_carrier, nsr); - - if (!new_carrier) - netif_carrier_off(ndev); - else - netif_carrier_on(ndev); - } - } else - mii_check_media(&db->mii, netif_msg_link(db), 0); - - if (netif_running(ndev)) - dm9000_schedule_poll(db); -} - -/* dm9000_release_board - * - * release a board, and any mapped resources - */ - -static void -dm9000_release_board(struct platform_device *pdev, struct board_info *db) -{ - /* unmap our resources */ - - iounmap(db->io_addr); - iounmap(db->io_data); - - /* release the resources */ - - release_resource(db->data_req); - kfree(db->data_req); - - release_resource(db->addr_req); - kfree(db->addr_req); -} - -static unsigned char dm9000_type_to_char(enum dm9000_type type) -{ - switch (type) { - case TYPE_DM9000E: return 'e'; - case TYPE_DM9000A: return 'a'; - case TYPE_DM9000B: return 'b'; - } - - return '?'; -} - -/* - * Set DM9000 multicast address - */ -static void -dm9000_hash_table_unlocked(struct net_device *dev) -{ - board_info_t *db = netdev_priv(dev); - struct netdev_hw_addr *ha; - int i, oft; - u32 hash_val; - u16 hash_table[4]; - u8 rcr = RCR_DIS_LONG | RCR_DIS_CRC | RCR_RXEN; - - dm9000_dbg(db, 1, "entering %s\n", __func__); - - for (i = 0, oft = DM9000_PAR; i < 6; i++, oft++) - iow(db, oft, dev->dev_addr[i]); - - /* Clear Hash Table */ - for (i = 0; i < 4; i++) - hash_table[i] = 0x0; - - /* broadcast address */ - hash_table[3] = 0x8000; - - if (dev->flags & IFF_PROMISC) - rcr |= RCR_PRMSC; - - if (dev->flags & IFF_ALLMULTI) - rcr |= RCR_ALL; - - /* the multicast address in Hash Table : 64 bits */ - netdev_for_each_mc_addr(ha, dev) { - hash_val = ether_crc_le(6, ha->addr) & 0x3f; - hash_table[hash_val / 16] |= (u16) 1 << (hash_val % 16); - } - - /* Write the hash table to MAC MD table */ - for (i = 0, oft = DM9000_MAR; i < 4; i++) { - iow(db, oft++, hash_table[i]); - iow(db, oft++, hash_table[i] >> 8); - } - - iow(db, DM9000_RCR, rcr); -} - -static void -dm9000_hash_table(struct net_device *dev) -{ - board_info_t *db = netdev_priv(dev); - unsigned long flags; - - spin_lock_irqsave(&db->lock, flags); - dm9000_hash_table_unlocked(dev); - spin_unlock_irqrestore(&db->lock, flags); -} - -/* - * Initialize dm9000 board - */ -static void -dm9000_init_dm9000(struct net_device *dev) -{ - board_info_t *db = netdev_priv(dev); - unsigned int imr; - unsigned int ncr; - - dm9000_dbg(db, 1, "entering %s\n", __func__); - - /* I/O mode */ - db->io_mode = ior(db, DM9000_ISR) >> 6; /* ISR bit7:6 keeps I/O mode */ - - /* Checksum mode */ - if (dev->hw_features & NETIF_F_RXCSUM) - iow(db, DM9000_RCSR, - (dev->features & NETIF_F_RXCSUM) ? RCSR_CSUM : 0); - - iow(db, DM9000_GPCR, GPCR_GEP_CNTL); /* Let GPIO0 output */ - - ncr = (db->flags & DM9000_PLATF_EXT_PHY) ? NCR_EXT_PHY : 0; - - /* if wol is needed, then always set NCR_WAKEEN otherwise we end - * up dumping the wake events if we disable this. There is already - * a wake-mask in DM9000_WCR */ - if (db->wake_supported) - ncr |= NCR_WAKEEN; - - iow(db, DM9000_NCR, ncr); - - /* Program operating register */ - iow(db, DM9000_TCR, 0); /* TX Polling clear */ - iow(db, DM9000_BPTR, 0x3f); /* Less 3Kb, 200us */ - iow(db, DM9000_FCR, 0xff); /* Flow Control */ - iow(db, DM9000_SMCR, 0); /* Special Mode */ - /* clear TX status */ - iow(db, DM9000_NSR, NSR_WAKEST | NSR_TX2END | NSR_TX1END); - iow(db, DM9000_ISR, ISR_CLR_STATUS); /* Clear interrupt status */ - - /* Set address filter table */ - dm9000_hash_table_unlocked(dev); - - imr = IMR_PAR | IMR_PTM | IMR_PRM; - if (db->type != TYPE_DM9000E) - imr |= IMR_LNKCHNG; - - db->imr_all = imr; - - /* Enable TX/RX interrupt mask */ - iow(db, DM9000_IMR, imr); - - /* Init Driver variable */ - db->tx_pkt_cnt = 0; - db->queue_pkt_len = 0; - dev->trans_start = jiffies; -} - -/* Our watchdog timed out. Called by the networking layer */ -static void dm9000_timeout(struct net_device *dev) -{ - board_info_t *db = netdev_priv(dev); - u8 reg_save; - unsigned long flags; - - /* Save previous register address */ - spin_lock_irqsave(&db->lock, flags); - reg_save = readb(db->io_addr); - - netif_stop_queue(dev); - dm9000_reset(db); - dm9000_init_dm9000(dev); - /* We can accept TX packets again */ - dev->trans_start = jiffies; /* prevent tx timeout */ - netif_wake_queue(dev); - - /* Restore previous register address */ - writeb(reg_save, db->io_addr); - spin_unlock_irqrestore(&db->lock, flags); -} - -static void dm9000_send_packet(struct net_device *dev, - int ip_summed, - u16 pkt_len) -{ - board_info_t *dm = to_dm9000_board(dev); - - /* The DM9000 is not smart enough to leave fragmented packets alone. */ - if (dm->ip_summed != ip_summed) { - if (ip_summed == CHECKSUM_NONE) - iow(dm, DM9000_TCCR, 0); - else - iow(dm, DM9000_TCCR, TCCR_IP | TCCR_UDP | TCCR_TCP); - dm->ip_summed = ip_summed; - } - - /* Set TX length to DM9000 */ - iow(dm, DM9000_TXPLL, pkt_len); - iow(dm, DM9000_TXPLH, pkt_len >> 8); - - /* Issue TX polling command */ - iow(dm, DM9000_TCR, TCR_TXREQ); /* Cleared after TX complete */ -} - -/* - * Hardware start transmission. - * Send a packet to media from the upper layer. - */ -static int -dm9000_start_xmit(struct sk_buff *skb, struct net_device *dev) -{ - unsigned long flags; - board_info_t *db = netdev_priv(dev); - - dm9000_dbg(db, 3, "%s:\n", __func__); - - if (db->tx_pkt_cnt > 1) - return NETDEV_TX_BUSY; - - spin_lock_irqsave(&db->lock, flags); - - /* Move data to DM9000 TX RAM */ - writeb(DM9000_MWCMD, db->io_addr); - - (db->outblk)(db->io_data, skb->data, skb->len); - dev->stats.tx_bytes += skb->len; - - db->tx_pkt_cnt++; - /* TX control: First packet immediately send, second packet queue */ - if (db->tx_pkt_cnt == 1) { - dm9000_send_packet(dev, skb->ip_summed, skb->len); - } else { - /* Second packet */ - db->queue_pkt_len = skb->len; - db->queue_ip_summed = skb->ip_summed; - netif_stop_queue(dev); - } - - spin_unlock_irqrestore(&db->lock, flags); - - /* free this SKB */ - dev_kfree_skb(skb); - - return NETDEV_TX_OK; -} - -/* - * DM9000 interrupt handler - * receive the packet to upper layer, free the transmitted packet - */ - -static void dm9000_tx_done(struct net_device *dev, board_info_t *db) -{ - int tx_status = ior(db, DM9000_NSR); /* Got TX status */ - - if (tx_status & (NSR_TX2END | NSR_TX1END)) { - /* One packet sent complete */ - db->tx_pkt_cnt--; - dev->stats.tx_packets++; - - if (netif_msg_tx_done(db)) - dev_dbg(db->dev, "tx done, NSR %02x\n", tx_status); - - /* Queue packet check & send */ - if (db->tx_pkt_cnt > 0) - dm9000_send_packet(dev, db->queue_ip_summed, - db->queue_pkt_len); - netif_wake_queue(dev); - } -} - -struct dm9000_rxhdr { - u8 RxPktReady; - u8 RxStatus; - __le16 RxLen; -} __packed; - -/* - * Received a packet and pass to upper layer - */ -static void -dm9000_rx(struct net_device *dev) -{ - board_info_t *db = netdev_priv(dev); - struct dm9000_rxhdr rxhdr; - struct sk_buff *skb; - u8 rxbyte, *rdptr; - bool GoodPacket; - int RxLen; - - /* Check packet ready or not */ - do { - ior(db, DM9000_MRCMDX); /* Dummy read */ - - /* Get most updated data */ - rxbyte = readb(db->io_data); - - /* Status check: this byte must be 0 or 1 */ - if (rxbyte & DM9000_PKT_ERR) { - dev_warn(db->dev, "status check fail: %d\n", rxbyte); - iow(db, DM9000_RCR, 0x00); /* Stop Device */ - iow(db, DM9000_ISR, IMR_PAR); /* Stop INT request */ - return; - } - - if (!(rxbyte & DM9000_PKT_RDY)) - return; - - /* A packet ready now & Get status/length */ - GoodPacket = true; - writeb(DM9000_MRCMD, db->io_addr); - - (db->inblk)(db->io_data, &rxhdr, sizeof(rxhdr)); - - RxLen = le16_to_cpu(rxhdr.RxLen); - - if (netif_msg_rx_status(db)) - dev_dbg(db->dev, "RX: status %02x, length %04x\n", - rxhdr.RxStatus, RxLen); - - /* Packet Status check */ - if (RxLen < 0x40) { - GoodPacket = false; - if (netif_msg_rx_err(db)) - dev_dbg(db->dev, "RX: Bad Packet (runt)\n"); - } - - if (RxLen > DM9000_PKT_MAX) { - dev_dbg(db->dev, "RST: RX Len:%x\n", RxLen); - } - - /* rxhdr.RxStatus is identical to RSR register. */ - if (rxhdr.RxStatus & (RSR_FOE | RSR_CE | RSR_AE | - RSR_PLE | RSR_RWTO | - RSR_LCS | RSR_RF)) { - GoodPacket = false; - if (rxhdr.RxStatus & RSR_FOE) { - if (netif_msg_rx_err(db)) - dev_dbg(db->dev, "fifo error\n"); - dev->stats.rx_fifo_errors++; - } - if (rxhdr.RxStatus & RSR_CE) { - if (netif_msg_rx_err(db)) - dev_dbg(db->dev, "crc error\n"); - dev->stats.rx_crc_errors++; - } - if (rxhdr.RxStatus & RSR_RF) { - if (netif_msg_rx_err(db)) - dev_dbg(db->dev, "length error\n"); - dev->stats.rx_length_errors++; - } - } - - /* Move data from DM9000 */ - if (GoodPacket && - ((skb = dev_alloc_skb(RxLen + 4)) != NULL)) { - skb_reserve(skb, 2); - rdptr = (u8 *) skb_put(skb, RxLen - 4); - - /* Read received packet from RX SRAM */ - - (db->inblk)(db->io_data, rdptr, RxLen); - dev->stats.rx_bytes += RxLen; - - /* Pass to upper layer */ - skb->protocol = eth_type_trans(skb, dev); - if (dev->features & NETIF_F_RXCSUM) { - if ((((rxbyte & 0x1c) << 3) & rxbyte) == 0) - skb->ip_summed = CHECKSUM_UNNECESSARY; - else - skb_checksum_none_assert(skb); - } - netif_rx(skb); - dev->stats.rx_packets++; - - } else { - /* need to dump the packet's data */ - - (db->dumpblk)(db->io_data, RxLen); - } - } while (rxbyte & DM9000_PKT_RDY); -} - -static irqreturn_t dm9000_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = dev_id; - board_info_t *db = netdev_priv(dev); - int int_status; - unsigned long flags; - u8 reg_save; - - dm9000_dbg(db, 3, "entering %s\n", __func__); - - /* A real interrupt coming */ - - /* holders of db->lock must always block IRQs */ - spin_lock_irqsave(&db->lock, flags); - - /* Save previous register address */ - reg_save = readb(db->io_addr); - - /* Disable all interrupts */ - iow(db, DM9000_IMR, IMR_PAR); - - /* Got DM9000 interrupt status */ - int_status = ior(db, DM9000_ISR); /* Got ISR */ - iow(db, DM9000_ISR, int_status); /* Clear ISR status */ - - if (netif_msg_intr(db)) - dev_dbg(db->dev, "interrupt status %02x\n", int_status); - - /* Received the coming packet */ - if (int_status & ISR_PRS) - dm9000_rx(dev); - - /* Trnasmit Interrupt check */ - if (int_status & ISR_PTS) - dm9000_tx_done(dev, db); - - if (db->type != TYPE_DM9000E) { - if (int_status & ISR_LNKCHNG) { - /* fire a link-change request */ - schedule_delayed_work(&db->phy_poll, 1); - } - } - - /* Re-enable interrupt mask */ - iow(db, DM9000_IMR, db->imr_all); - - /* Restore previous register address */ - writeb(reg_save, db->io_addr); - - spin_unlock_irqrestore(&db->lock, flags); - - return IRQ_HANDLED; -} - -static irqreturn_t dm9000_wol_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = dev_id; - board_info_t *db = netdev_priv(dev); - unsigned long flags; - unsigned nsr, wcr; - - spin_lock_irqsave(&db->lock, flags); - - nsr = ior(db, DM9000_NSR); - wcr = ior(db, DM9000_WCR); - - dev_dbg(db->dev, "%s: NSR=0x%02x, WCR=0x%02x\n", __func__, nsr, wcr); - - if (nsr & NSR_WAKEST) { - /* clear, so we can avoid */ - iow(db, DM9000_NSR, NSR_WAKEST); - - if (wcr & WCR_LINKST) - dev_info(db->dev, "wake by link status change\n"); - if (wcr & WCR_SAMPLEST) - dev_info(db->dev, "wake by sample packet\n"); - if (wcr & WCR_MAGICST ) - dev_info(db->dev, "wake by magic packet\n"); - if (!(wcr & (WCR_LINKST | WCR_SAMPLEST | WCR_MAGICST))) - dev_err(db->dev, "wake signalled with no reason? " - "NSR=0x%02x, WSR=0x%02x\n", nsr, wcr); - - } - - spin_unlock_irqrestore(&db->lock, flags); - - return (nsr & NSR_WAKEST) ? IRQ_HANDLED : IRQ_NONE; -} - -#ifdef CONFIG_NET_POLL_CONTROLLER -/* - *Used by netconsole - */ -static void dm9000_poll_controller(struct net_device *dev) -{ - disable_irq(dev->irq); - dm9000_interrupt(dev->irq, dev); - enable_irq(dev->irq); -} -#endif - -/* - * Open the interface. - * The interface is opened whenever "ifconfig" actives it. - */ -static int -dm9000_open(struct net_device *dev) -{ - board_info_t *db = netdev_priv(dev); - unsigned long irqflags = db->irq_res->flags & IRQF_TRIGGER_MASK; - - if (netif_msg_ifup(db)) - dev_dbg(db->dev, "enabling %s\n", dev->name); - - /* If there is no IRQ type specified, default to something that - * may work, and tell the user that this is a problem */ - - if (irqflags == IRQF_TRIGGER_NONE) - dev_warn(db->dev, "WARNING: no IRQ resource flags set.\n"); - - irqflags |= IRQF_SHARED; - - /* GPIO0 on pre-activate PHY, Reg 1F is not set by reset */ - iow(db, DM9000_GPR, 0); /* REG_1F bit0 activate phyxcer */ - mdelay(1); /* delay needs by DM9000B */ - - /* Initialize DM9000 board */ - dm9000_reset(db); - dm9000_init_dm9000(dev); - - if (request_irq(dev->irq, dm9000_interrupt, irqflags, dev->name, dev)) - return -EAGAIN; - - /* Init driver variable */ - db->dbug_cnt = 0; - - mii_check_media(&db->mii, netif_msg_link(db), 1); - netif_start_queue(dev); - - dm9000_schedule_poll(db); - - return 0; -} - -/* - * Sleep, either by using msleep() or if we are suspending, then - * use mdelay() to sleep. - */ -static void dm9000_msleep(board_info_t *db, unsigned int ms) -{ - if (db->in_suspend) - mdelay(ms); - else - msleep(ms); -} - -/* - * Read a word from phyxcer - */ -static int -dm9000_phy_read(struct net_device *dev, int phy_reg_unused, int reg) -{ - board_info_t *db = netdev_priv(dev); - unsigned long flags; - unsigned int reg_save; - int ret; - - mutex_lock(&db->addr_lock); - - spin_lock_irqsave(&db->lock,flags); - - /* Save previous register address */ - reg_save = readb(db->io_addr); - - /* Fill the phyxcer register into REG_0C */ - iow(db, DM9000_EPAR, DM9000_PHY | reg); - - iow(db, DM9000_EPCR, EPCR_ERPRR | EPCR_EPOS); /* Issue phyxcer read command */ - - writeb(reg_save, db->io_addr); - spin_unlock_irqrestore(&db->lock,flags); - - dm9000_msleep(db, 1); /* Wait read complete */ - - spin_lock_irqsave(&db->lock,flags); - reg_save = readb(db->io_addr); - - iow(db, DM9000_EPCR, 0x0); /* Clear phyxcer read command */ - - /* The read data keeps on REG_0D & REG_0E */ - ret = (ior(db, DM9000_EPDRH) << 8) | ior(db, DM9000_EPDRL); - - /* restore the previous address */ - writeb(reg_save, db->io_addr); - spin_unlock_irqrestore(&db->lock,flags); - - mutex_unlock(&db->addr_lock); - - dm9000_dbg(db, 5, "phy_read[%02x] -> %04x\n", reg, ret); - return ret; -} - -/* - * Write a word to phyxcer - */ -static void -dm9000_phy_write(struct net_device *dev, - int phyaddr_unused, int reg, int value) -{ - board_info_t *db = netdev_priv(dev); - unsigned long flags; - unsigned long reg_save; - - dm9000_dbg(db, 5, "phy_write[%02x] = %04x\n", reg, value); - mutex_lock(&db->addr_lock); - - spin_lock_irqsave(&db->lock,flags); - - /* Save previous register address */ - reg_save = readb(db->io_addr); - - /* Fill the phyxcer register into REG_0C */ - iow(db, DM9000_EPAR, DM9000_PHY | reg); - - /* Fill the written data into REG_0D & REG_0E */ - iow(db, DM9000_EPDRL, value); - iow(db, DM9000_EPDRH, value >> 8); - - iow(db, DM9000_EPCR, EPCR_EPOS | EPCR_ERPRW); /* Issue phyxcer write command */ - - writeb(reg_save, db->io_addr); - spin_unlock_irqrestore(&db->lock, flags); - - dm9000_msleep(db, 1); /* Wait write complete */ - - spin_lock_irqsave(&db->lock,flags); - reg_save = readb(db->io_addr); - - iow(db, DM9000_EPCR, 0x0); /* Clear phyxcer write command */ - - /* restore the previous address */ - writeb(reg_save, db->io_addr); - - spin_unlock_irqrestore(&db->lock, flags); - mutex_unlock(&db->addr_lock); -} - -static void -dm9000_shutdown(struct net_device *dev) -{ - board_info_t *db = netdev_priv(dev); - - /* RESET device */ - dm9000_phy_write(dev, 0, MII_BMCR, BMCR_RESET); /* PHY RESET */ - iow(db, DM9000_GPR, 0x01); /* Power-Down PHY */ - iow(db, DM9000_IMR, IMR_PAR); /* Disable all interrupt */ - iow(db, DM9000_RCR, 0x00); /* Disable RX */ -} - -/* - * Stop the interface. - * The interface is stopped when it is brought. - */ -static int -dm9000_stop(struct net_device *ndev) -{ - board_info_t *db = netdev_priv(ndev); - - if (netif_msg_ifdown(db)) - dev_dbg(db->dev, "shutting down %s\n", ndev->name); - - cancel_delayed_work_sync(&db->phy_poll); - - netif_stop_queue(ndev); - netif_carrier_off(ndev); - - /* free interrupt */ - free_irq(ndev->irq, ndev); - - dm9000_shutdown(ndev); - - return 0; -} - -static const struct net_device_ops dm9000_netdev_ops = { - .ndo_open = dm9000_open, - .ndo_stop = dm9000_stop, - .ndo_start_xmit = dm9000_start_xmit, - .ndo_tx_timeout = dm9000_timeout, - .ndo_set_multicast_list = dm9000_hash_table, - .ndo_do_ioctl = dm9000_ioctl, - .ndo_change_mtu = eth_change_mtu, - .ndo_set_features = dm9000_set_features, - .ndo_validate_addr = eth_validate_addr, - .ndo_set_mac_address = eth_mac_addr, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = dm9000_poll_controller, -#endif -}; - -/* - * Search DM9000 board, allocate space and register it - */ -static int __devinit -dm9000_probe(struct platform_device *pdev) -{ - struct dm9000_plat_data *pdata = pdev->dev.platform_data; - struct board_info *db; /* Point a board information structure */ - struct net_device *ndev; - const unsigned char *mac_src; - int ret = 0; - int iosize; - int i; - u32 id_val; - - /* Init network device */ - ndev = alloc_etherdev(sizeof(struct board_info)); - if (!ndev) { - dev_err(&pdev->dev, "could not allocate device.\n"); - return -ENOMEM; - } - - SET_NETDEV_DEV(ndev, &pdev->dev); - - dev_dbg(&pdev->dev, "dm9000_probe()\n"); - - /* setup board info structure */ - db = netdev_priv(ndev); - - db->dev = &pdev->dev; - db->ndev = ndev; - - spin_lock_init(&db->lock); - mutex_init(&db->addr_lock); - - INIT_DELAYED_WORK(&db->phy_poll, dm9000_poll_work); - - db->addr_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - db->data_res = platform_get_resource(pdev, IORESOURCE_MEM, 1); - db->irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - - if (db->addr_res == NULL || db->data_res == NULL || - db->irq_res == NULL) { - dev_err(db->dev, "insufficient resources\n"); - ret = -ENOENT; - goto out; - } - - db->irq_wake = platform_get_irq(pdev, 1); - if (db->irq_wake >= 0) { - dev_dbg(db->dev, "wakeup irq %d\n", db->irq_wake); - - ret = request_irq(db->irq_wake, dm9000_wol_interrupt, - IRQF_SHARED, dev_name(db->dev), ndev); - if (ret) { - dev_err(db->dev, "cannot get wakeup irq (%d)\n", ret); - } else { - - /* test to see if irq is really wakeup capable */ - ret = irq_set_irq_wake(db->irq_wake, 1); - if (ret) { - dev_err(db->dev, "irq %d cannot set wakeup (%d)\n", - db->irq_wake, ret); - ret = 0; - } else { - irq_set_irq_wake(db->irq_wake, 0); - db->wake_supported = 1; - } - } - } - - iosize = resource_size(db->addr_res); - db->addr_req = request_mem_region(db->addr_res->start, iosize, - pdev->name); - - if (db->addr_req == NULL) { - dev_err(db->dev, "cannot claim address reg area\n"); - ret = -EIO; - goto out; - } - - db->io_addr = ioremap(db->addr_res->start, iosize); - - if (db->io_addr == NULL) { - dev_err(db->dev, "failed to ioremap address reg\n"); - ret = -EINVAL; - goto out; - } - - iosize = resource_size(db->data_res); - db->data_req = request_mem_region(db->data_res->start, iosize, - pdev->name); - - if (db->data_req == NULL) { - dev_err(db->dev, "cannot claim data reg area\n"); - ret = -EIO; - goto out; - } - - db->io_data = ioremap(db->data_res->start, iosize); - - if (db->io_data == NULL) { - dev_err(db->dev, "failed to ioremap data reg\n"); - ret = -EINVAL; - goto out; - } - - /* fill in parameters for net-dev structure */ - ndev->base_addr = (unsigned long)db->io_addr; - ndev->irq = db->irq_res->start; - - /* ensure at least we have a default set of IO routines */ - dm9000_set_io(db, iosize); - - /* check to see if anything is being over-ridden */ - if (pdata != NULL) { - /* check to see if the driver wants to over-ride the - * default IO width */ - - if (pdata->flags & DM9000_PLATF_8BITONLY) - dm9000_set_io(db, 1); - - if (pdata->flags & DM9000_PLATF_16BITONLY) - dm9000_set_io(db, 2); - - if (pdata->flags & DM9000_PLATF_32BITONLY) - dm9000_set_io(db, 4); - - /* check to see if there are any IO routine - * over-rides */ - - if (pdata->inblk != NULL) - db->inblk = pdata->inblk; - - if (pdata->outblk != NULL) - db->outblk = pdata->outblk; - - if (pdata->dumpblk != NULL) - db->dumpblk = pdata->dumpblk; - - db->flags = pdata->flags; - } - -#ifdef CONFIG_DM9000_FORCE_SIMPLE_PHY_POLL - db->flags |= DM9000_PLATF_SIMPLE_PHY; -#endif - - dm9000_reset(db); - - /* try multiple times, DM9000 sometimes gets the read wrong */ - for (i = 0; i < 8; i++) { - id_val = ior(db, DM9000_VIDL); - id_val |= (u32)ior(db, DM9000_VIDH) << 8; - id_val |= (u32)ior(db, DM9000_PIDL) << 16; - id_val |= (u32)ior(db, DM9000_PIDH) << 24; - - if (id_val == DM9000_ID) - break; - dev_err(db->dev, "read wrong id 0x%08x\n", id_val); - } - - if (id_val != DM9000_ID) { - dev_err(db->dev, "wrong id: 0x%08x\n", id_val); - ret = -ENODEV; - goto out; - } - - /* Identify what type of DM9000 we are working on */ - - id_val = ior(db, DM9000_CHIPR); - dev_dbg(db->dev, "dm9000 revision 0x%02x\n", id_val); - - switch (id_val) { - case CHIPR_DM9000A: - db->type = TYPE_DM9000A; - break; - case CHIPR_DM9000B: - db->type = TYPE_DM9000B; - break; - default: - dev_dbg(db->dev, "ID %02x => defaulting to DM9000E\n", id_val); - db->type = TYPE_DM9000E; - } - - /* dm9000a/b are capable of hardware checksum offload */ - if (db->type == TYPE_DM9000A || db->type == TYPE_DM9000B) { - ndev->hw_features = NETIF_F_RXCSUM | NETIF_F_IP_CSUM; - ndev->features |= ndev->hw_features; - } - - /* from this point we assume that we have found a DM9000 */ - - /* driver system function */ - ether_setup(ndev); - - ndev->netdev_ops = &dm9000_netdev_ops; - ndev->watchdog_timeo = msecs_to_jiffies(watchdog); - ndev->ethtool_ops = &dm9000_ethtool_ops; - - db->msg_enable = NETIF_MSG_LINK; - db->mii.phy_id_mask = 0x1f; - db->mii.reg_num_mask = 0x1f; - db->mii.force_media = 0; - db->mii.full_duplex = 0; - db->mii.dev = ndev; - db->mii.mdio_read = dm9000_phy_read; - db->mii.mdio_write = dm9000_phy_write; - - mac_src = "eeprom"; - - /* try reading the node address from the attached EEPROM */ - for (i = 0; i < 6; i += 2) - dm9000_read_eeprom(db, i / 2, ndev->dev_addr+i); - - if (!is_valid_ether_addr(ndev->dev_addr) && pdata != NULL) { - mac_src = "platform data"; - memcpy(ndev->dev_addr, pdata->dev_addr, 6); - } - - if (!is_valid_ether_addr(ndev->dev_addr)) { - /* try reading from mac */ - - mac_src = "chip"; - for (i = 0; i < 6; i++) - ndev->dev_addr[i] = ior(db, i+DM9000_PAR); - } - - if (!is_valid_ether_addr(ndev->dev_addr)) { - dev_warn(db->dev, "%s: Invalid ethernet MAC address. Please " - "set using ifconfig\n", ndev->name); - - random_ether_addr(ndev->dev_addr); - mac_src = "random"; - } - - - platform_set_drvdata(pdev, ndev); - ret = register_netdev(ndev); - - if (ret == 0) - printk(KERN_INFO "%s: dm9000%c at %p,%p IRQ %d MAC: %pM (%s)\n", - ndev->name, dm9000_type_to_char(db->type), - db->io_addr, db->io_data, ndev->irq, - ndev->dev_addr, mac_src); - return 0; - -out: - dev_err(db->dev, "not found (%d).\n", ret); - - dm9000_release_board(pdev, db); - free_netdev(ndev); - - return ret; -} - -static int -dm9000_drv_suspend(struct device *dev) -{ - struct platform_device *pdev = to_platform_device(dev); - struct net_device *ndev = platform_get_drvdata(pdev); - board_info_t *db; - - if (ndev) { - db = netdev_priv(ndev); - db->in_suspend = 1; - - if (!netif_running(ndev)) - return 0; - - netif_device_detach(ndev); - - /* only shutdown if not using WoL */ - if (!db->wake_state) - dm9000_shutdown(ndev); - } - return 0; -} - -static int -dm9000_drv_resume(struct device *dev) -{ - struct platform_device *pdev = to_platform_device(dev); - struct net_device *ndev = platform_get_drvdata(pdev); - board_info_t *db = netdev_priv(ndev); - - if (ndev) { - if (netif_running(ndev)) { - /* reset if we were not in wake mode to ensure if - * the device was powered off it is in a known state */ - if (!db->wake_state) { - dm9000_reset(db); - dm9000_init_dm9000(ndev); - } - - netif_device_attach(ndev); - } - - db->in_suspend = 0; - } - return 0; -} - -static const struct dev_pm_ops dm9000_drv_pm_ops = { - .suspend = dm9000_drv_suspend, - .resume = dm9000_drv_resume, -}; - -static int __devexit -dm9000_drv_remove(struct platform_device *pdev) -{ - struct net_device *ndev = platform_get_drvdata(pdev); - - platform_set_drvdata(pdev, NULL); - - unregister_netdev(ndev); - dm9000_release_board(pdev, netdev_priv(ndev)); - free_netdev(ndev); /* free device structure */ - - dev_dbg(&pdev->dev, "released and freed device\n"); - return 0; -} - -static struct platform_driver dm9000_driver = { - .driver = { - .name = "dm9000", - .owner = THIS_MODULE, - .pm = &dm9000_drv_pm_ops, - }, - .probe = dm9000_probe, - .remove = __devexit_p(dm9000_drv_remove), -}; - -static int __init -dm9000_init(void) -{ - printk(KERN_INFO "%s Ethernet Driver, V%s\n", CARDNAME, DRV_VERSION); - - return platform_driver_register(&dm9000_driver); -} - -static void __exit -dm9000_cleanup(void) -{ - platform_driver_unregister(&dm9000_driver); -} - -module_init(dm9000_init); -module_exit(dm9000_cleanup); - -MODULE_AUTHOR("Sascha Hauer, Ben Dooks"); -MODULE_DESCRIPTION("Davicom DM9000 network driver"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:dm9000"); |