diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 22:20:36 (GMT) |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 22:20:36 (GMT) |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/net/au1000_eth.c | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/net/au1000_eth.c')
-rw-r--r-- | drivers/net/au1000_eth.c | 2273 |
1 files changed, 2273 insertions, 0 deletions
diff --git a/drivers/net/au1000_eth.c b/drivers/net/au1000_eth.c new file mode 100644 index 0000000..5a2efd3 --- /dev/null +++ b/drivers/net/au1000_eth.c @@ -0,0 +1,2273 @@ +/* + * + * Alchemy Au1x00 ethernet driver + * + * Copyright 2001,2002,2003 MontaVista Software Inc. + * Copyright 2002 TimeSys Corp. + * Added ethtool/mii-tool support, + * Copyright 2004 Matt Porter <mporter@kernel.crashing.org> + * Update: 2004 Bjoern Riemer, riemer@fokus.fraunhofer.de + * or riemer@riemer-nt.de: fixed the link beat detection with + * ioctls (SIOCGMIIPHY) + * Author: MontaVista Software, Inc. + * ppopov@mvista.com or source@mvista.com + * + * ######################################################################## + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope 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. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. + * + * ######################################################################## + * + * + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/string.h> +#include <linux/timer.h> +#include <linux/errno.h> +#include <linux/in.h> +#include <linux/ioport.h> +#include <linux/bitops.h> +#include <linux/slab.h> +#include <linux/interrupt.h> +#include <linux/pci.h> +#include <linux/init.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/ethtool.h> +#include <linux/mii.h> +#include <linux/skbuff.h> +#include <linux/delay.h> +#include <asm/mipsregs.h> +#include <asm/irq.h> +#include <asm/io.h> +#include <asm/processor.h> + +#include <asm/mach-au1x00/au1000.h> +#include <asm/cpu.h> +#include "au1000_eth.h" + +#ifdef AU1000_ETH_DEBUG +static int au1000_debug = 5; +#else +static int au1000_debug = 3; +#endif + +#define DRV_NAME "au1000eth" +#define DRV_VERSION "1.5" +#define DRV_AUTHOR "Pete Popov <ppopov@embeddedalley.com>" +#define DRV_DESC "Au1xxx on-chip Ethernet driver" + +MODULE_AUTHOR(DRV_AUTHOR); +MODULE_DESCRIPTION(DRV_DESC); +MODULE_LICENSE("GPL"); + +// prototypes +static void hard_stop(struct net_device *); +static void enable_rx_tx(struct net_device *dev); +static struct net_device * au1000_probe(u32 ioaddr, int irq, int port_num); +static int au1000_init(struct net_device *); +static int au1000_open(struct net_device *); +static int au1000_close(struct net_device *); +static int au1000_tx(struct sk_buff *, struct net_device *); +static int au1000_rx(struct net_device *); +static irqreturn_t au1000_interrupt(int, void *, struct pt_regs *); +static void au1000_tx_timeout(struct net_device *); +static int au1000_set_config(struct net_device *dev, struct ifmap *map); +static void set_rx_mode(struct net_device *); +static struct net_device_stats *au1000_get_stats(struct net_device *); +static inline void update_tx_stats(struct net_device *, u32, u32); +static inline void update_rx_stats(struct net_device *, u32); +static void au1000_timer(unsigned long); +static int au1000_ioctl(struct net_device *, struct ifreq *, int); +static int mdio_read(struct net_device *, int, int); +static void mdio_write(struct net_device *, int, int, u16); +static void dump_mii(struct net_device *dev, int phy_id); + +// externs +extern void ack_rise_edge_irq(unsigned int); +extern int get_ethernet_addr(char *ethernet_addr); +extern void str2eaddr(unsigned char *ea, unsigned char *str); +extern char * __init prom_getcmdline(void); + +/* + * Theory of operation + * + * The Au1000 MACs use a simple rx and tx descriptor ring scheme. + * There are four receive and four transmit descriptors. These + * descriptors are not in memory; rather, they are just a set of + * hardware registers. + * + * Since the Au1000 has a coherent data cache, the receive and + * transmit buffers are allocated from the KSEG0 segment. The + * hardware registers, however, are still mapped at KSEG1 to + * make sure there's no out-of-order writes, and that all writes + * complete immediately. + */ + +/* These addresses are only used if yamon doesn't tell us what + * the mac address is, and the mac address is not passed on the + * command line. + */ +static unsigned char au1000_mac_addr[6] __devinitdata = { + 0x00, 0x50, 0xc2, 0x0c, 0x30, 0x00 +}; + +#define nibswap(x) ((((x) >> 4) & 0x0f) | (((x) << 4) & 0xf0)) +#define RUN_AT(x) (jiffies + (x)) + +// For reading/writing 32-bit words from/to DMA memory +#define cpu_to_dma32 cpu_to_be32 +#define dma32_to_cpu be32_to_cpu + +struct au1000_private *au_macs[NUM_ETH_INTERFACES]; + +/* FIXME + * All of the PHY code really should be detached from the MAC + * code. + */ + +/* Default advertise */ +#define GENMII_DEFAULT_ADVERTISE \ + ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \ + ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \ + ADVERTISED_Autoneg + +#define GENMII_DEFAULT_FEATURES \ + SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | \ + SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | \ + SUPPORTED_Autoneg + +static char *phy_link[] = +{ "unknown", + "10Base2", "10BaseT", + "AUI", + "100BaseT", "100BaseTX", "100BaseFX" +}; + +int bcm_5201_init(struct net_device *dev, int phy_addr) +{ + s16 data; + + /* Stop auto-negotiation */ + data = mdio_read(dev, phy_addr, MII_CONTROL); + mdio_write(dev, phy_addr, MII_CONTROL, data & ~MII_CNTL_AUTO); + + /* Set advertisement to 10/100 and Half/Full duplex + * (full capabilities) */ + data = mdio_read(dev, phy_addr, MII_ANADV); + data |= MII_NWAY_TX | MII_NWAY_TX_FDX | MII_NWAY_T_FDX | MII_NWAY_T; + mdio_write(dev, phy_addr, MII_ANADV, data); + + /* Restart auto-negotiation */ + data = mdio_read(dev, phy_addr, MII_CONTROL); + data |= MII_CNTL_RST_AUTO | MII_CNTL_AUTO; + mdio_write(dev, phy_addr, MII_CONTROL, data); + + if (au1000_debug > 4) + dump_mii(dev, phy_addr); + return 0; +} + +int bcm_5201_reset(struct net_device *dev, int phy_addr) +{ + s16 mii_control, timeout; + + mii_control = mdio_read(dev, phy_addr, MII_CONTROL); + mdio_write(dev, phy_addr, MII_CONTROL, mii_control | MII_CNTL_RESET); + mdelay(1); + for (timeout = 100; timeout > 0; --timeout) { + mii_control = mdio_read(dev, phy_addr, MII_CONTROL); + if ((mii_control & MII_CNTL_RESET) == 0) + break; + mdelay(1); + } + if (mii_control & MII_CNTL_RESET) { + printk(KERN_ERR "%s PHY reset timeout !\n", dev->name); + return -1; + } + return 0; +} + +int +bcm_5201_status(struct net_device *dev, int phy_addr, u16 *link, u16 *speed) +{ + u16 mii_data; + struct au1000_private *aup; + + if (!dev) { + printk(KERN_ERR "bcm_5201_status error: NULL dev\n"); + return -1; + } + aup = (struct au1000_private *) dev->priv; + + mii_data = mdio_read(dev, aup->phy_addr, MII_STATUS); + if (mii_data & MII_STAT_LINK) { + *link = 1; + mii_data = mdio_read(dev, aup->phy_addr, MII_AUX_CNTRL); + if (mii_data & MII_AUX_100) { + if (mii_data & MII_AUX_FDX) { + *speed = IF_PORT_100BASEFX; + dev->if_port = IF_PORT_100BASEFX; + } + else { + *speed = IF_PORT_100BASETX; + dev->if_port = IF_PORT_100BASETX; + } + } + else { + *speed = IF_PORT_10BASET; + dev->if_port = IF_PORT_10BASET; + } + + } + else { + *link = 0; + *speed = 0; + dev->if_port = IF_PORT_UNKNOWN; + } + return 0; +} + +int lsi_80227_init(struct net_device *dev, int phy_addr) +{ + if (au1000_debug > 4) + printk("lsi_80227_init\n"); + + /* restart auto-negotiation */ + mdio_write(dev, phy_addr, MII_CONTROL, + MII_CNTL_F100 | MII_CNTL_AUTO | MII_CNTL_RST_AUTO); // | MII_CNTL_FDX); + mdelay(1); + + /* set up LEDs to correct display */ +#ifdef CONFIG_MIPS_MTX1 + mdio_write(dev, phy_addr, 17, 0xff80); +#else + mdio_write(dev, phy_addr, 17, 0xffc0); +#endif + + if (au1000_debug > 4) + dump_mii(dev, phy_addr); + return 0; +} + +int lsi_80227_reset(struct net_device *dev, int phy_addr) +{ + s16 mii_control, timeout; + + if (au1000_debug > 4) { + printk("lsi_80227_reset\n"); + dump_mii(dev, phy_addr); + } + + mii_control = mdio_read(dev, phy_addr, MII_CONTROL); + mdio_write(dev, phy_addr, MII_CONTROL, mii_control | MII_CNTL_RESET); + mdelay(1); + for (timeout = 100; timeout > 0; --timeout) { + mii_control = mdio_read(dev, phy_addr, MII_CONTROL); + if ((mii_control & MII_CNTL_RESET) == 0) + break; + mdelay(1); + } + if (mii_control & MII_CNTL_RESET) { + printk(KERN_ERR "%s PHY reset timeout !\n", dev->name); + return -1; + } + return 0; +} + +int +lsi_80227_status(struct net_device *dev, int phy_addr, u16 *link, u16 *speed) +{ + u16 mii_data; + struct au1000_private *aup; + + if (!dev) { + printk(KERN_ERR "lsi_80227_status error: NULL dev\n"); + return -1; + } + aup = (struct au1000_private *) dev->priv; + + mii_data = mdio_read(dev, aup->phy_addr, MII_STATUS); + if (mii_data & MII_STAT_LINK) { + *link = 1; + mii_data = mdio_read(dev, aup->phy_addr, MII_LSI_PHY_STAT); + if (mii_data & MII_LSI_PHY_STAT_SPD) { + if (mii_data & MII_LSI_PHY_STAT_FDX) { + *speed = IF_PORT_100BASEFX; + dev->if_port = IF_PORT_100BASEFX; + } + else { + *speed = IF_PORT_100BASETX; + dev->if_port = IF_PORT_100BASETX; + } + } + else { + *speed = IF_PORT_10BASET; + dev->if_port = IF_PORT_10BASET; + } + + } + else { + *link = 0; + *speed = 0; + dev->if_port = IF_PORT_UNKNOWN; + } + return 0; +} + +int am79c901_init(struct net_device *dev, int phy_addr) +{ + printk("am79c901_init\n"); + return 0; +} + +int am79c901_reset(struct net_device *dev, int phy_addr) +{ + printk("am79c901_reset\n"); + return 0; +} + +int +am79c901_status(struct net_device *dev, int phy_addr, u16 *link, u16 *speed) +{ + return 0; +} + +int am79c874_init(struct net_device *dev, int phy_addr) +{ + s16 data; + + /* 79c874 has quit resembled bit assignments to BCM5201 */ + if (au1000_debug > 4) + printk("am79c847_init\n"); + + /* Stop auto-negotiation */ + data = mdio_read(dev, phy_addr, MII_CONTROL); + mdio_write(dev, phy_addr, MII_CONTROL, data & ~MII_CNTL_AUTO); + + /* Set advertisement to 10/100 and Half/Full duplex + * (full capabilities) */ + data = mdio_read(dev, phy_addr, MII_ANADV); + data |= MII_NWAY_TX | MII_NWAY_TX_FDX | MII_NWAY_T_FDX | MII_NWAY_T; + mdio_write(dev, phy_addr, MII_ANADV, data); + + /* Restart auto-negotiation */ + data = mdio_read(dev, phy_addr, MII_CONTROL); + data |= MII_CNTL_RST_AUTO | MII_CNTL_AUTO; + + mdio_write(dev, phy_addr, MII_CONTROL, data); + + if (au1000_debug > 4) dump_mii(dev, phy_addr); + return 0; +} + +int am79c874_reset(struct net_device *dev, int phy_addr) +{ + s16 mii_control, timeout; + + if (au1000_debug > 4) + printk("am79c874_reset\n"); + + mii_control = mdio_read(dev, phy_addr, MII_CONTROL); + mdio_write(dev, phy_addr, MII_CONTROL, mii_control | MII_CNTL_RESET); + mdelay(1); + for (timeout = 100; timeout > 0; --timeout) { + mii_control = mdio_read(dev, phy_addr, MII_CONTROL); + if ((mii_control & MII_CNTL_RESET) == 0) + break; + mdelay(1); + } + if (mii_control & MII_CNTL_RESET) { + printk(KERN_ERR "%s PHY reset timeout !\n", dev->name); + return -1; + } + return 0; +} + +int +am79c874_status(struct net_device *dev, int phy_addr, u16 *link, u16 *speed) +{ + u16 mii_data; + struct au1000_private *aup; + + // printk("am79c874_status\n"); + if (!dev) { + printk(KERN_ERR "am79c874_status error: NULL dev\n"); + return -1; + } + + aup = (struct au1000_private *) dev->priv; + mii_data = mdio_read(dev, aup->phy_addr, MII_STATUS); + + if (mii_data & MII_STAT_LINK) { + *link = 1; + mii_data = mdio_read(dev, aup->phy_addr, MII_AMD_PHY_STAT); + if (mii_data & MII_AMD_PHY_STAT_SPD) { + if (mii_data & MII_AMD_PHY_STAT_FDX) { + *speed = IF_PORT_100BASEFX; + dev->if_port = IF_PORT_100BASEFX; + } + else { + *speed = IF_PORT_100BASETX; + dev->if_port = IF_PORT_100BASETX; + } + } + else { + *speed = IF_PORT_10BASET; + dev->if_port = IF_PORT_10BASET; + } + + } + else { + *link = 0; + *speed = 0; + dev->if_port = IF_PORT_UNKNOWN; + } + return 0; +} + +int lxt971a_init(struct net_device *dev, int phy_addr) +{ + if (au1000_debug > 4) + printk("lxt971a_init\n"); + + /* restart auto-negotiation */ + mdio_write(dev, phy_addr, MII_CONTROL, + MII_CNTL_F100 | MII_CNTL_AUTO | MII_CNTL_RST_AUTO | MII_CNTL_FDX); + + /* set up LEDs to correct display */ + mdio_write(dev, phy_addr, 20, 0x0422); + + if (au1000_debug > 4) + dump_mii(dev, phy_addr); + return 0; +} + +int lxt971a_reset(struct net_device *dev, int phy_addr) +{ + s16 mii_control, timeout; + + if (au1000_debug > 4) { + printk("lxt971a_reset\n"); + dump_mii(dev, phy_addr); + } + + mii_control = mdio_read(dev, phy_addr, MII_CONTROL); + mdio_write(dev, phy_addr, MII_CONTROL, mii_control | MII_CNTL_RESET); + mdelay(1); + for (timeout = 100; timeout > 0; --timeout) { + mii_control = mdio_read(dev, phy_addr, MII_CONTROL); + if ((mii_control & MII_CNTL_RESET) == 0) + break; + mdelay(1); + } + if (mii_control & MII_CNTL_RESET) { + printk(KERN_ERR "%s PHY reset timeout !\n", dev->name); + return -1; + } + return 0; +} + +int +lxt971a_status(struct net_device *dev, int phy_addr, u16 *link, u16 *speed) +{ + u16 mii_data; + struct au1000_private *aup; + + if (!dev) { + printk(KERN_ERR "lxt971a_status error: NULL dev\n"); + return -1; + } + aup = (struct au1000_private *) dev->priv; + + mii_data = mdio_read(dev, aup->phy_addr, MII_STATUS); + if (mii_data & MII_STAT_LINK) { + *link = 1; + mii_data = mdio_read(dev, aup->phy_addr, MII_INTEL_PHY_STAT); + if (mii_data & MII_INTEL_PHY_STAT_SPD) { + if (mii_data & MII_INTEL_PHY_STAT_FDX) { + *speed = IF_PORT_100BASEFX; + dev->if_port = IF_PORT_100BASEFX; + } + else { + *speed = IF_PORT_100BASETX; + dev->if_port = IF_PORT_100BASETX; + } + } + else { + *speed = IF_PORT_10BASET; + dev->if_port = IF_PORT_10BASET; + } + + } + else { + *link = 0; + *speed = 0; + dev->if_port = IF_PORT_UNKNOWN; + } + return 0; +} + +int ks8995m_init(struct net_device *dev, int phy_addr) +{ + s16 data; + +// printk("ks8995m_init\n"); + /* Stop auto-negotiation */ + data = mdio_read(dev, phy_addr, MII_CONTROL); + mdio_write(dev, phy_addr, MII_CONTROL, data & ~MII_CNTL_AUTO); + + /* Set advertisement to 10/100 and Half/Full duplex + * (full capabilities) */ + data = mdio_read(dev, phy_addr, MII_ANADV); + data |= MII_NWAY_TX | MII_NWAY_TX_FDX | MII_NWAY_T_FDX | MII_NWAY_T; + mdio_write(dev, phy_addr, MII_ANADV, data); + + /* Restart auto-negotiation */ + data = mdio_read(dev, phy_addr, MII_CONTROL); + data |= MII_CNTL_RST_AUTO | MII_CNTL_AUTO; + mdio_write(dev, phy_addr, MII_CONTROL, data); + + if (au1000_debug > 4) dump_mii(dev, phy_addr); + + return 0; +} + +int ks8995m_reset(struct net_device *dev, int phy_addr) +{ + s16 mii_control, timeout; + +// printk("ks8995m_reset\n"); + mii_control = mdio_read(dev, phy_addr, MII_CONTROL); + mdio_write(dev, phy_addr, MII_CONTROL, mii_control | MII_CNTL_RESET); + mdelay(1); + for (timeout = 100; timeout > 0; --timeout) { + mii_control = mdio_read(dev, phy_addr, MII_CONTROL); + if ((mii_control & MII_CNTL_RESET) == 0) + break; + mdelay(1); + } + if (mii_control & MII_CNTL_RESET) { + printk(KERN_ERR "%s PHY reset timeout !\n", dev->name); + return -1; + } + return 0; +} + +int ks8995m_status(struct net_device *dev, int phy_addr, u16 *link, u16 *speed) +{ + u16 mii_data; + struct au1000_private *aup; + + if (!dev) { + printk(KERN_ERR "ks8995m_status error: NULL dev\n"); + return -1; + } + aup = (struct au1000_private *) dev->priv; + + mii_data = mdio_read(dev, aup->phy_addr, MII_STATUS); + if (mii_data & MII_STAT_LINK) { + *link = 1; + mii_data = mdio_read(dev, aup->phy_addr, MII_AUX_CNTRL); + if (mii_data & MII_AUX_100) { + if (mii_data & MII_AUX_FDX) { + *speed = IF_PORT_100BASEFX; + dev->if_port = IF_PORT_100BASEFX; + } + else { + *speed = IF_PORT_100BASETX; + dev->if_port = IF_PORT_100BASETX; + } + } + else { + *speed = IF_PORT_10BASET; + dev->if_port = IF_PORT_10BASET; + } + + } + else { + *link = 0; + *speed = 0; + dev->if_port = IF_PORT_UNKNOWN; + } + return 0; +} + +int +smsc_83C185_init (struct net_device *dev, int phy_addr) +{ + s16 data; + + if (au1000_debug > 4) + printk("smsc_83C185_init\n"); + + /* Stop auto-negotiation */ + data = mdio_read(dev, phy_addr, MII_CONTROL); + mdio_write(dev, phy_addr, MII_CONTROL, data & ~MII_CNTL_AUTO); + + /* Set advertisement to 10/100 and Half/Full duplex + * (full capabilities) */ + data = mdio_read(dev, phy_addr, MII_ANADV); + data |= MII_NWAY_TX | MII_NWAY_TX_FDX | MII_NWAY_T_FDX | MII_NWAY_T; + mdio_write(dev, phy_addr, MII_ANADV, data); + + /* Restart auto-negotiation */ + data = mdio_read(dev, phy_addr, MII_CONTROL); + data |= MII_CNTL_RST_AUTO | MII_CNTL_AUTO; + + mdio_write(dev, phy_addr, MII_CONTROL, data); + + if (au1000_debug > 4) dump_mii(dev, phy_addr); + return 0; +} + +int +smsc_83C185_reset (struct net_device *dev, int phy_addr) +{ + s16 mii_control, timeout; + + if (au1000_debug > 4) + printk("smsc_83C185_reset\n"); + + mii_control = mdio_read(dev, phy_addr, MII_CONTROL); + mdio_write(dev, phy_addr, MII_CONTROL, mii_control | MII_CNTL_RESET); + mdelay(1); + for (timeout = 100; timeout > 0; --timeout) { + mii_control = mdio_read(dev, phy_addr, MII_CONTROL); + if ((mii_control & MII_CNTL_RESET) == 0) + break; + mdelay(1); + } + if (mii_control & MII_CNTL_RESET) { + printk(KERN_ERR "%s PHY reset timeout !\n", dev->name); + return -1; + } + return 0; +} + +int +smsc_83C185_status (struct net_device *dev, int phy_addr, u16 *link, u16 *speed) +{ + u16 mii_data; + struct au1000_private *aup; + + if (!dev) { + printk(KERN_ERR "smsc_83C185_status error: NULL dev\n"); + return -1; + } + + aup = (struct au1000_private *) dev->priv; + mii_data = mdio_read(dev, aup->phy_addr, MII_STATUS); + + if (mii_data & MII_STAT_LINK) { + *link = 1; + mii_data = mdio_read(dev, aup->phy_addr, 0x1f); + if (mii_data & (1<<3)) { + if (mii_data & (1<<4)) { + *speed = IF_PORT_100BASEFX; + dev->if_port = IF_PORT_100BASEFX; + } + else { + *speed = IF_PORT_100BASETX; + dev->if_port = IF_PORT_100BASETX; + } + } + else { + *speed = IF_PORT_10BASET; + dev->if_port = IF_PORT_10BASET; + } + } + else { + *link = 0; + *speed = 0; + dev->if_port = IF_PORT_UNKNOWN; + } + return 0; +} + + +#ifdef CONFIG_MIPS_BOSPORUS +int stub_init(struct net_device *dev, int phy_addr) +{ + //printk("PHY stub_init\n"); + return 0; +} + +int stub_reset(struct net_device *dev, int phy_addr) +{ + //printk("PHY stub_reset\n"); + return 0; +} + +int +stub_status(struct net_device *dev, int phy_addr, u16 *link, u16 *speed) +{ + //printk("PHY stub_status\n"); + *link = 1; + /* hmmm, revisit */ + *speed = IF_PORT_100BASEFX; + dev->if_port = IF_PORT_100BASEFX; + return 0; +} +#endif + +struct phy_ops bcm_5201_ops = { + bcm_5201_init, + bcm_5201_reset, + bcm_5201_status, +}; + +struct phy_ops am79c874_ops = { + am79c874_init, + am79c874_reset, + am79c874_status, +}; + +struct phy_ops am79c901_ops = { + am79c901_init, + am79c901_reset, + am79c901_status, +}; + +struct phy_ops lsi_80227_ops = { + lsi_80227_init, + lsi_80227_reset, + lsi_80227_status, +}; + +struct phy_ops lxt971a_ops = { + lxt971a_init, + lxt971a_reset, + lxt971a_status, +}; + +struct phy_ops ks8995m_ops = { + ks8995m_init, + ks8995m_reset, + ks8995m_status, +}; + +struct phy_ops smsc_83C185_ops = { + smsc_83C185_init, + smsc_83C185_reset, + smsc_83C185_status, +}; + +#ifdef CONFIG_MIPS_BOSPORUS +struct phy_ops stub_ops = { + stub_init, + stub_reset, + stub_status, +}; +#endif + +static struct mii_chip_info { + const char * name; + u16 phy_id0; + u16 phy_id1; + struct phy_ops *phy_ops; + int dual_phy; +} mii_chip_table[] = { + {"Broadcom BCM5201 10/100 BaseT PHY",0x0040,0x6212, &bcm_5201_ops,0}, + {"Broadcom BCM5221 10/100 BaseT PHY",0x0040,0x61e4, &bcm_5201_ops,0}, + {"Broadcom BCM5222 10/100 BaseT PHY",0x0040,0x6322, &bcm_5201_ops,1}, + {"AMD 79C901 HomePNA PHY",0x0000,0x35c8, &am79c901_ops,0}, + {"AMD 79C874 10/100 BaseT PHY",0x0022,0x561b, &am79c874_ops,0}, + {"LSI 80227 10/100 BaseT PHY",0x0016,0xf840, &lsi_80227_ops,0}, + {"Intel LXT971A Dual Speed PHY",0x0013,0x78e2, &lxt971a_ops,0}, + {"Kendin KS8995M 10/100 BaseT PHY",0x0022,0x1450, &ks8995m_ops,0}, + {"SMSC LAN83C185 10/100 BaseT PHY",0x0007,0xc0a3, &smsc_83C185_ops,0}, +#ifdef CONFIG_MIPS_BOSPORUS + {"Stub", 0x1234, 0x5678, &stub_ops }, +#endif + {0,}, +}; + +static int mdio_read(struct net_device *dev, int phy_id, int reg) +{ + struct au1000_private *aup = (struct au1000_private *) dev->priv; + volatile u32 *mii_control_reg; + volatile u32 *mii_data_reg; + u32 timedout = 20; + u32 mii_control; + + #ifdef CONFIG_BCM5222_DUAL_PHY + /* First time we probe, it's for the mac0 phy. + * Since we haven't determined yet that we have a dual phy, + * aup->mii->mii_control_reg won't be setup and we'll + * default to the else statement. + * By the time we probe for the mac1 phy, the mii_control_reg + * will be setup to be the address of the mac0 phy control since + * both phys are controlled through mac0. + */ + if (aup->mii && aup->mii->mii_control_reg) { + mii_control_reg = aup->mii->mii_control_reg; + mii_data_reg = aup->mii->mii_data_reg; + } + else if (au_macs[0]->mii && au_macs[0]->mii->mii_control_reg) { + /* assume both phys are controlled through mac0 */ + mii_control_reg = au_macs[0]->mii->mii_control_reg; + mii_data_reg = au_macs[0]->mii->mii_data_reg; + } + else + #endif + { + /* default control and data reg addresses */ + mii_control_reg = &aup->mac->mii_control; + mii_data_reg = &aup->mac->mii_data; + } + + while (*mii_control_reg & MAC_MII_BUSY) { + mdelay(1); + if (--timedout == 0) { + printk(KERN_ERR "%s: read_MII busy timeout!!\n", + dev->name); + return -1; + } + } + + mii_control = MAC_SET_MII_SELECT_REG(reg) | + MAC_SET_MII_SELECT_PHY(phy_id) | MAC_MII_READ; + + *mii_control_reg = mii_control; + + timedout = 20; + while (*mii_control_reg & MAC_MII_BUSY) { + mdelay(1); + if (--timedout == 0) { + printk(KERN_ERR "%s: mdio_read busy timeout!!\n", + dev->name); + return -1; + } + } + return (int)*mii_data_reg; +} + +static void mdio_write(struct net_device *dev, int phy_id, int reg, u16 value) +{ + struct au1000_private *aup = (struct au1000_private *) dev->priv; + volatile u32 *mii_control_reg; + volatile u32 *mii_data_reg; + u32 timedout = 20; + u32 mii_control; + + #ifdef CONFIG_BCM5222_DUAL_PHY + if (aup->mii && aup->mii->mii_control_reg) { + mii_control_reg = aup->mii->mii_control_reg; + mii_data_reg = aup->mii->mii_data_reg; + } + else if (au_macs[0]->mii && au_macs[0]->mii->mii_control_reg) { + /* assume both phys are controlled through mac0 */ + mii_control_reg = au_macs[0]->mii->mii_control_reg; + mii_data_reg = au_macs[0]->mii->mii_data_reg; + } + else + #endif + { + /* default control and data reg addresses */ + mii_control_reg = &aup->mac->mii_control; + mii_data_reg = &aup->mac->mii_data; + } + + while (*mii_control_reg & MAC_MII_BUSY) { + mdelay(1); + if (--timedout == 0) { + printk(KERN_ERR "%s: mdio_write busy timeout!!\n", + dev->name); + return; + } + } + + mii_control = MAC_SET_MII_SELECT_REG(reg) | + MAC_SET_MII_SELECT_PHY(phy_id) | MAC_MII_WRITE; + + *mii_data_reg = value; + *mii_control_reg = mii_control; +} + + +static void dump_mii(struct net_device *dev, int phy_id) +{ + int i, val; + + for (i = 0; i < 7; i++) { + if ((val = mdio_read(dev, phy_id, i)) >= 0) + printk("%s: MII Reg %d=%x\n", dev->name, i, val); + } + for (i = 16; i < 25; i++) { + if ((val = mdio_read(dev, phy_id, i)) >= 0) + printk("%s: MII Reg %d=%x\n", dev->name, i, val); + } +} + +static int mii_probe (struct net_device * dev) +{ + struct au1000_private *aup = (struct au1000_private *) dev->priv; + int phy_addr; +#ifdef CONFIG_MIPS_BOSPORUS + int phy_found=0; +#endif + + /* search for total of 32 possible mii phy addresses */ + for (phy_addr = 0; phy_addr < 32; phy_addr++) { + u16 mii_status; + u16 phy_id0, phy_id1; + int i; + + #ifdef CONFIG_BCM5222_DUAL_PHY + /* Mask the already found phy, try next one */ + if (au_macs[0]->mii && au_macs[0]->mii->mii_control_reg) { + if (au_macs[0]->phy_addr == phy_addr) + continue; + } + #endif + + mii_status = mdio_read(dev, phy_addr, MII_STATUS); + if (mii_status == 0xffff || mii_status == 0x0000) + /* the mii is not accessable, try next one */ + continue; + + phy_id0 = mdio_read(dev, phy_addr, MII_PHY_ID0); + phy_id1 = mdio_read(dev, phy_addr, MII_PHY_ID1); + + /* search our mii table for the current mii */ + for (i = 0; mii_chip_table[i].phy_id1; i++) { + if (phy_id0 == mii_chip_table[i].phy_id0 && + phy_id1 == mii_chip_table[i].phy_id1) { + struct mii_phy * mii_phy = aup->mii; + + printk(KERN_INFO "%s: %s at phy address %d\n", + dev->name, mii_chip_table[i].name, + phy_addr); +#ifdef CONFIG_MIPS_BOSPORUS + phy_found = 1; +#endif + mii_phy->chip_info = mii_chip_table+i; + aup->phy_addr = phy_addr; + aup->want_autoneg = 1; + aup->phy_ops = mii_chip_table[i].phy_ops; + aup->phy_ops->phy_init(dev,phy_addr); + + // Check for dual-phy and then store required + // values and set indicators. We need to do + // this now since mdio_{read,write} need the + // control and data register addresses. + #ifdef CONFIG_BCM5222_DUAL_PHY + if ( mii_chip_table[i].dual_phy) { + + /* assume both phys are controlled + * through MAC0. Board specific? */ + + /* sanity check */ + if (!au_macs[0] || !au_macs[0]->mii) + return -1; + aup->mii->mii_control_reg = (u32 *) + &au_macs[0]->mac->mii_control; + aup->mii->mii_data_reg = (u32 *) + &au_macs[0]->mac->mii_data; + } + #endif + goto found; + } + } + } +found: + +#ifdef CONFIG_MIPS_BOSPORUS + /* This is a workaround for the Micrel/Kendin 5 port switch + The second MAC doesn't see a PHY connected... so we need to + trick it into thinking we have one. + + If this kernel is run on another Au1500 development board + the stub will be found as well as the actual PHY. However, + the last found PHY will be used... usually at Addr 31 (Db1500). + */ + if ( (!phy_found) ) + { + u16 phy_id0, phy_id1; + int i; + + phy_id0 = 0x1234; + phy_id1 = 0x5678; + + /* search our mii table for the current mii */ + for (i = 0; mii_chip_table[i].phy_id1; i++) { + if (phy_id0 == mii_chip_table[i].phy_id0 && + phy_id1 == mii_chip_table[i].phy_id1) { + struct mii_phy * mii_phy; + + printk(KERN_INFO "%s: %s at phy address %d\n", + dev->name, mii_chip_table[i].name, + phy_addr); + mii_phy = kmalloc(sizeof(struct mii_phy), + GFP_KERNEL); + if (mii_phy) { + mii_phy->chip_info = mii_chip_table+i; + aup->phy_addr = phy_addr; + mii_phy->next = aup->mii; + aup->phy_ops = + mii_chip_table[i].phy_ops; + aup->mii = mii_phy; + aup->phy_ops->phy_init(dev,phy_addr); + } else { + printk(KERN_ERR "%s: out of memory\n", + dev->name); + return -1; + } + mii_phy->chip_info = mii_chip_table+i; + aup->phy_addr = phy_addr; + aup->phy_ops = mii_chip_table[i].phy_ops; + aup->phy_ops->phy_init(dev,phy_addr); + break; + } + } + } + if (aup->mac_id == 0) { + /* the Bosporus phy responds to addresses 0-5 but + * 5 is the correct one. + */ + aup->phy_addr = 5; + } +#endif + + if (aup->mii->chip_info == NULL) { + printk(KERN_ERR "%s: Au1x No MII transceivers found!\n", + dev->name); + return -1; + } + + printk(KERN_INFO "%s: Using %s as default\n", + dev->name, aup->mii->chip_info->name); + + return 0; +} + + +/* + * Buffer allocation/deallocation routines. The buffer descriptor returned + * has the virtual and dma address of a buffer suitable for + * both, receive and transmit operations. + */ +static db_dest_t *GetFreeDB(struct au1000_private *aup) +{ + db_dest_t *pDB; + pDB = aup->pDBfree; + + if (pDB) { + aup->pDBfree = pDB->pnext; + } + return pDB; +} + +void ReleaseDB(struct au1000_private *aup, db_dest_t *pDB) +{ + db_dest_t *pDBfree = aup->pDBfree; + if (pDBfree) + pDBfree->pnext = pDB; + aup->pDBfree = pDB; +} + +static void enable_rx_tx(struct net_device *dev) +{ + struct au1000_private *aup = (struct au1000_private *) dev->priv; + + if (au1000_debug > 4) + printk(KERN_INFO "%s: enable_rx_tx\n", dev->name); + + aup->mac->control |= (MAC_RX_ENABLE | MAC_TX_ENABLE); + au_sync_delay(10); +} + +static void hard_stop(struct net_device *dev) +{ + struct au1000_private *aup = (struct au1000_private *) dev->priv; + + if (au1000_debug > 4) + printk(KERN_INFO "%s: hard stop\n", dev->name); + + aup->mac->control &= ~(MAC_RX_ENABLE | MAC_TX_ENABLE); + au_sync_delay(10); +} + + +static void reset_mac(struct net_device *dev) +{ + int i; + u32 flags; + struct au1000_private *aup = (struct au1000_private *) dev->priv; + + if (au1000_debug > 4) + printk(KERN_INFO "%s: reset mac, aup %x\n", + dev->name, (unsigned)aup); + + spin_lock_irqsave(&aup->lock, flags); + if (aup->timer.function == &au1000_timer) {/* check if timer initted */ + del_timer(&aup->timer); + } + + hard_stop(dev); + #ifdef CONFIG_BCM5222_DUAL_PHY + if (aup->mac_id != 0) { + #endif + /* If BCM5222, we can't leave MAC0 in reset because then + * we can't access the dual phy for ETH1 */ + *aup->enable = MAC_EN_CLOCK_ENABLE; + au_sync_delay(2); + *aup->enable = 0; + au_sync_delay(2); + #ifdef CONFIG_BCM5222_DUAL_PHY + } + #endif + aup->tx_full = 0; + for (i = 0; i < NUM_RX_DMA; i++) { + /* reset control bits */ + aup->rx_dma_ring[i]->buff_stat &= ~0xf; + } + for (i = 0; i < NUM_TX_DMA; i++) { + /* reset control bits */ + aup->tx_dma_ring[i]->buff_stat &= ~0xf; + } + spin_unlock_irqrestore(&aup->lock, flags); +} + + +/* + * Setup the receive and transmit "rings". These pointers are the addresses + * of the rx and tx MAC DMA registers so they are fixed by the hardware -- + * these are not descriptors sitting in memory. + */ +static void +setup_hw_rings(struct au1000_private *aup, u32 rx_base, u32 tx_base) +{ + int i; + + for (i = 0; i < NUM_RX_DMA; i++) { + aup->rx_dma_ring[i] = + (volatile rx_dma_t *) (rx_base + sizeof(rx_dma_t)*i); + } + for (i = 0; i < NUM_TX_DMA; i++) { + aup->tx_dma_ring[i] = + (volatile tx_dma_t *) (tx_base + sizeof(tx_dma_t)*i); + } +} + +static struct { + int port; + u32 base_addr; + u32 macen_addr; + int irq; + struct net_device *dev; +} iflist[2]; + +static int num_ifs; + +/* + * Setup the base address and interupt of the Au1xxx ethernet macs + * based on cpu type and whether the interface is enabled in sys_pinfunc + * register. The last interface is enabled if SYS_PF_NI2 (bit 4) is 0. + */ +static int __init au1000_init_module(void) +{ + struct cpuinfo_mips *c = ¤t_cpu_data; + int ni = (int)((au_readl(SYS_PINFUNC) & (u32)(SYS_PF_NI2)) >> 4); + struct net_device *dev; + int i, found_one = 0; + + switch (c->cputype) { +#ifdef CONFIG_SOC_AU1000 + case CPU_AU1000: + num_ifs = 2 - ni; + iflist[0].base_addr = AU1000_ETH0_BASE; + iflist[1].base_addr = AU1000_ETH1_BASE; + iflist[0].macen_addr = AU1000_MAC0_ENABLE; + iflist[1].macen_addr = AU1000_MAC1_ENABLE; + iflist[0].irq = AU1000_MAC0_DMA_INT; + iflist[1].irq = AU1000_MAC1_DMA_INT; + break; +#endif +#ifdef CONFIG_SOC_AU1100 + case CPU_AU1100: + num_ifs = 1 - ni; + iflist[0].base_addr = AU1100_ETH0_BASE; + iflist[0].macen_addr = AU1100_MAC0_ENABLE; + iflist[0].irq = AU1100_MAC0_DMA_INT; + break; +#endif +#ifdef CONFIG_SOC_AU1500 + case CPU_AU1500: + num_ifs = 2 - ni; + iflist[0].base_addr = AU1500_ETH0_BASE; + iflist[1].base_addr = AU1500_ETH1_BASE; + iflist[0].macen_addr = AU1500_MAC0_ENABLE; + iflist[1].macen_addr = AU1500_MAC1_ENABLE; + iflist[0].irq = AU1500_MAC0_DMA_INT; + iflist[1].irq = AU1500_MAC1_DMA_INT; + break; +#endif +#ifdef CONFIG_SOC_AU1550 + case CPU_AU1550: + num_ifs = 2 - ni; + iflist[0].base_addr = AU1550_ETH0_BASE; + iflist[1].base_addr = AU1550_ETH1_BASE; + iflist[0].macen_addr = AU1550_MAC0_ENABLE; + iflist[1].macen_addr = AU1550_MAC1_ENABLE; + iflist[0].irq = AU1550_MAC0_DMA_INT; + iflist[1].irq = AU1550_MAC1_DMA_INT; + break; +#endif + default: + num_ifs = 0; + } + for(i = 0; i < num_ifs; i++) { + dev = au1000_probe(iflist[i].base_addr, iflist[i].irq, i); + iflist[i].dev = dev; + if (dev) + found_one++; + } + if (!found_one) + return -ENODEV; + return 0; +} + +static int au1000_setup_aneg(struct net_device *dev, u32 advertise) +{ + struct au1000_private *aup = (struct au1000_private *)dev->priv; + u16 ctl, adv; + + /* Setup standard advertise */ + adv = mdio_read(dev, aup->phy_addr, MII_ADVERTISE); + adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4); + if (advertise & ADVERTISED_10baseT_Half) + adv |= ADVERTISE_10HALF; + if (advertise & ADVERTISED_10baseT_Full) + adv |= ADVERTISE_10FULL; + if (advertise & ADVERTISED_100baseT_Half) + adv |= ADVERTISE_100HALF; + if (advertise & ADVERTISED_100baseT_Full) + adv |= ADVERTISE_100FULL; + mdio_write(dev, aup->phy_addr, MII_ADVERTISE, adv); + + /* Start/Restart aneg */ + ctl = mdio_read(dev, aup->phy_addr, MII_BMCR); + ctl |= (BMCR_ANENABLE | BMCR_ANRESTART); + mdio_write(dev, aup->phy_addr, MII_BMCR, ctl); + + return 0; +} + +static int au1000_setup_forced(struct net_device *dev, int speed, int fd) +{ + struct au1000_private *aup = (struct au1000_private *)dev->priv; + u16 ctl; + + ctl = mdio_read(dev, aup->phy_addr, MII_BMCR); + ctl &= ~(BMCR_FULLDPLX | BMCR_SPEED100 | BMCR_ANENABLE); + + /* First reset the PHY */ + mdio_write(dev, aup->phy_addr, MII_BMCR, ctl | BMCR_RESET); + + /* Select speed & duplex */ + switch (speed) { + case SPEED_10: + break; + case SPEED_100: + ctl |= BMCR_SPEED100; + break; + case SPEED_1000: + default: + return -EINVAL; + } + if (fd == DUPLEX_FULL) + ctl |= BMCR_FULLDPLX; + mdio_write(dev, aup->phy_addr, MII_BMCR, ctl); + + return 0; +} + + +static void +au1000_start_link(struct net_device *dev, struct ethtool_cmd *cmd) +{ + struct au1000_private *aup = (struct au1000_private *)dev->priv; + u32 advertise; + int autoneg; + int forced_speed; + int forced_duplex; + + /* Default advertise */ + advertise = GENMII_DEFAULT_ADVERTISE; + autoneg = aup->want_autoneg; + forced_speed = SPEED_100; + forced_duplex = DUPLEX_FULL; + + /* Setup link parameters */ + if (cmd) { + if (cmd->autoneg == AUTONEG_ENABLE) { + advertise = cmd->advertising; + autoneg = 1; + } else { + autoneg = 0; + + forced_speed = cmd->speed; + forced_duplex = cmd->duplex; + } + } + + /* Configure PHY & start aneg */ + aup->want_autoneg = autoneg; + if (autoneg) + au1000_setup_aneg(dev, advertise); + else + au1000_setup_forced(dev, forced_speed, forced_duplex); + mod_timer(&aup->timer, jiffies + HZ); +} + +static int au1000_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) +{ + struct au1000_private *aup = (struct au1000_private *)dev->priv; + u16 link, speed; + + cmd->supported = GENMII_DEFAULT_FEATURES; + cmd->advertising = GENMII_DEFAULT_ADVERTISE; + cmd->port = PORT_MII; + cmd->transceiver = XCVR_EXTERNAL; + cmd->phy_address = aup->phy_addr; + spin_lock_irq(&aup->lock); + cmd->autoneg = aup->want_autoneg; + aup->phy_ops->phy_status(dev, aup->phy_addr, &link, &speed); + if ((speed == IF_PORT_100BASETX) || (speed == IF_PORT_100BASEFX)) + cmd->speed = SPEED_100; + else if (speed == IF_PORT_10BASET) + cmd->speed = SPEED_10; + if (link && (dev->if_port == IF_PORT_100BASEFX)) + cmd->duplex = DUPLEX_FULL; + else + cmd->duplex = DUPLEX_HALF; + spin_unlock_irq(&aup->lock); + return 0; +} + +static int au1000_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) +{ + struct au1000_private *aup = (struct au1000_private *)dev->priv; + unsigned long features = GENMII_DEFAULT_FEATURES; + + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + + if (cmd->autoneg != AUTONEG_ENABLE && cmd->autoneg != AUTONEG_DISABLE) + return -EINVAL; + if (cmd->autoneg == AUTONEG_ENABLE && cmd->advertising == 0) + return -EINVAL; + if (cmd->duplex != DUPLEX_HALF && cmd->duplex != DUPLEX_FULL) + return -EINVAL; + if (cmd->autoneg == AUTONEG_DISABLE) + switch (cmd->speed) { + case SPEED_10: + if (cmd->duplex == DUPLEX_HALF && + (features & SUPPORTED_10baseT_Half) == 0) + return -EINVAL; + if (cmd->duplex == DUPLEX_FULL && + (features & SUPPORTED_10baseT_Full) == 0) + return -EINVAL; + break; + case SPEED_100: + if (cmd->duplex == DUPLEX_HALF && + (features & SUPPORTED_100baseT_Half) == 0) + return -EINVAL; + if (cmd->duplex == DUPLEX_FULL && + (features & SUPPORTED_100baseT_Full) == 0) + return -EINVAL; + break; + default: + return -EINVAL; + } + else if ((features & SUPPORTED_Autoneg) == 0) + return -EINVAL; + + spin_lock_irq(&aup->lock); + au1000_start_link(dev, cmd); + spin_unlock_irq(&aup->lock); + return 0; +} + +static int au1000_nway_reset(struct net_device *dev) +{ + struct au1000_private *aup = (struct au1000_private *)dev->priv; + + if (!aup->want_autoneg) + return -EINVAL; + spin_lock_irq(&aup->lock); + au1000_start_link(dev, NULL); + spin_unlock_irq(&aup->lock); + return 0; +} + +static void +au1000_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) +{ + struct au1000_private *aup = (struct au1000_private *)dev->priv; + + strcpy(info->driver, DRV_NAME); + strcpy(info->version, DRV_VERSION); + info->fw_version[0] = '\0'; + sprintf(info->bus_info, "%s %d", DRV_NAME, aup->mac_id); + info->regdump_len = 0; +} + +static u32 au1000_get_link(struct net_device *dev) +{ + return netif_carrier_ok(dev); +} + +static struct ethtool_ops au1000_ethtool_ops = { + .get_settings = au1000_get_settings, + .set_settings = au1000_set_settings, + .get_drvinfo = au1000_get_drvinfo, + .nway_reset = au1000_nway_reset, + .get_link = au1000_get_link +}; + +static struct net_device * +au1000_probe(u32 ioaddr, int irq, int port_num) +{ + static unsigned version_printed = 0; + struct au1000_private *aup = NULL; + struct net_device *dev = NULL; + db_dest_t *pDB, *pDBfree; + char *pmac, *argptr; + char ethaddr[6]; + int i, err; + + if (!request_mem_region(CPHYSADDR(ioaddr), MAC_IOSIZE, "Au1x00 ENET")) + return NULL; + + if (version_printed++ == 0) + printk("%s version %s %s\n", DRV_NAME, DRV_VERSION, DRV_AUTHOR); + + dev = alloc_etherdev(sizeof(struct au1000_private)); + if (!dev) { + printk (KERN_ERR "au1000 eth: alloc_etherdev failed\n"); + return NULL; + } + + if ((err = register_netdev(dev))) { + printk(KERN_ERR "Au1x_eth Cannot register net device err %d\n", + err); + free_netdev(dev); + return NULL; + } + + printk("%s: Au1x Ethernet found at 0x%x, irq %d\n", + dev->name, ioaddr, irq); + + aup = dev->priv; + + /* Allocate the data buffers */ + /* Snooping works fine with eth on all au1xxx */ + aup->vaddr = (u32)dma_alloc_noncoherent(NULL, + MAX_BUF_SIZE * (NUM_TX_BUFFS+NUM_RX_BUFFS), + &aup->dma_addr, + 0); + if (!aup->vaddr) { + free_netdev(dev); + release_mem_region(CPHYSADDR(ioaddr), MAC_IOSIZE); + return NULL; + } + + /* aup->mac is the base address of the MAC's registers */ + aup->mac = (volatile mac_reg_t *)((unsigned long)ioaddr); + /* Setup some variables for quick register address access */ + if (ioaddr == iflist[0].base_addr) + { + /* check env variables first */ + if (!get_ethernet_addr(ethaddr)) { + memcpy(au1000_mac_addr, ethaddr, sizeof(au1000_mac_addr)); + } else { + /* Check command line */ + argptr = prom_getcmdline(); + if ((pmac = strstr(argptr, "ethaddr=")) == NULL) { + printk(KERN_INFO "%s: No mac address found\n", + dev->name); + /* use the hard coded mac addresses */ + } else { + str2eaddr(ethaddr, pmac + strlen("ethaddr=")); + memcpy(au1000_mac_addr, ethaddr, + sizeof(au1000_mac_addr)); + } + } + aup->enable = (volatile u32 *) + ((unsigned long)iflist[0].macen_addr); + memcpy(dev->dev_addr, au1000_mac_addr, sizeof(au1000_mac_addr)); + setup_hw_rings(aup, MAC0_RX_DMA_ADDR, MAC0_TX_DMA_ADDR); + aup->mac_id = 0; + au_macs[0] = aup; + } + else + if (ioaddr == iflist[1].base_addr) + { + aup->enable = (volatile u32 *) + ((unsigned long)iflist[1].macen_addr); + memcpy(dev->dev_addr, au1000_mac_addr, sizeof(au1000_mac_addr)); + dev->dev_addr[4] += 0x10; + setup_hw_rings(aup, MAC1_RX_DMA_ADDR, MAC1_TX_DMA_ADDR); + aup->mac_id = 1; + au_macs[1] = aup; + } + else + { + printk(KERN_ERR "%s: bad ioaddr\n", dev->name); + } + + /* bring the device out of reset, otherwise probing the mii + * will hang */ + *aup->enable = MAC_EN_CLOCK_ENABLE; + au_sync_delay(2); + *aup->enable = MAC_EN_RESET0 | MAC_EN_RESET1 | + MAC_EN_RESET2 | MAC_EN_CLOCK_ENABLE; + au_sync_delay(2); + + aup->mii = kmalloc(sizeof(struct mii_phy), GFP_KERNEL); + if (!aup->mii) { + printk(KERN_ERR "%s: out of memory\n", dev->name); + goto err_out; + } + aup->mii->mii_control_reg = 0; + aup->mii->mii_data_reg = 0; + + if (mii_probe(dev) != 0) { + goto err_out; + } + + pDBfree = NULL; + /* setup the data buffer descriptors and attach a buffer to each one */ + pDB = aup->db; + for (i = 0; i < (NUM_TX_BUFFS+NUM_RX_BUFFS); i++) { + pDB->pnext = pDBfree; + pDBfree = pDB; + pDB->vaddr = (u32 *)((unsigned)aup->vaddr + MAX_BUF_SIZE*i); + pDB->dma_addr = (dma_addr_t)virt_to_bus(pDB->vaddr); + pDB++; + } + aup->pDBfree = pDBfree; + + for (i = 0; i < NUM_RX_DMA; i++) { + pDB = GetFreeDB(aup); + if (!pDB) { + goto err_out; + } + aup->rx_dma_ring[i]->buff_stat = (unsigned)pDB->dma_addr; + aup->rx_db_inuse[i] = pDB; + } + for (i = 0; i < NUM_TX_DMA; i++) { + pDB = GetFreeDB(aup); + if (!pDB) { + goto err_out; + } + aup->tx_dma_ring[i]->buff_stat = (unsigned)pDB->dma_addr; + aup->tx_dma_ring[i]->len = 0; + aup->tx_db_inuse[i] = pDB; + } + + spin_lock_init(&aup->lock); + dev->base_addr = ioaddr; + dev->irq = irq; + dev->open = au1000_open; + dev->hard_start_xmit = au1000_tx; + dev->stop = au1000_close; + dev->get_stats = au1000_get_stats; + dev->set_multicast_list = &set_rx_mode; + dev->do_ioctl = &au1000_ioctl; + SET_ETHTOOL_OPS(dev, &au1000_ethtool_ops); + dev->set_config = &au1000_set_config; + dev->tx_timeout = au1000_tx_timeout; + dev->watchdog_timeo = ETH_TX_TIMEOUT; + + /* + * The boot code uses the ethernet controller, so reset it to start + * fresh. au1000_init() expects that the device is in reset state. + */ + reset_mac(dev); + + return dev; + +err_out: + /* here we should have a valid dev plus aup-> register addresses + * so we can reset the mac properly.*/ + reset_mac(dev); + if (aup->mii) + kfree(aup->mii); + for (i = 0; i < NUM_RX_DMA; i++) { + if (aup->rx_db_inuse[i]) + ReleaseDB(aup, aup->rx_db_inuse[i]); + } + for (i = 0; i < NUM_TX_DMA; i++) { + if (aup->tx_db_inuse[i]) + ReleaseDB(aup, aup->tx_db_inuse[i]); + } + dma_free_noncoherent(NULL, + MAX_BUF_SIZE * (NUM_TX_BUFFS+NUM_RX_BUFFS), + (void *)aup->vaddr, + aup->dma_addr); + unregister_netdev(dev); + free_netdev(dev); + release_mem_region(CPHYSADDR(ioaddr), MAC_IOSIZE); + return NULL; +} + +/* + * Initialize the interface. + * + * When the device powers up, the clocks are disabled and the + * mac is in reset state. When the interface is closed, we + * do the same -- reset the device and disable the clocks to + * conserve power. Thus, whenever au1000_init() is called, + * the device should already be in reset state. + */ +static int au1000_init(struct net_device *dev) +{ + struct au1000_private *aup = (struct au1000_private *) dev->priv; + u32 flags; + int i; + u32 control; + u16 link, speed; + + if (au1000_debug > 4) + printk("%s: au1000_init\n", dev->name); + + spin_lock_irqsave(&aup->lock, flags); + + /* bring the device out of reset */ + *aup->enable = MAC_EN_CLOCK_ENABLE; + au_sync_delay(2); + *aup->enable = MAC_EN_RESET0 | MAC_EN_RESET1 | + MAC_EN_RESET2 | MAC_EN_CLOCK_ENABLE; + au_sync_delay(20); + + aup->mac->control = 0; + aup->tx_head = (aup->tx_dma_ring[0]->buff_stat & 0xC) >> 2; + aup->tx_tail = aup->tx_head; + aup->rx_head = (aup->rx_dma_ring[0]->buff_stat & 0xC) >> 2; + + aup->mac->mac_addr_high = dev->dev_addr[5]<<8 | dev->dev_addr[4]; + aup->mac->mac_addr_low = dev->dev_addr[3]<<24 | dev->dev_addr[2]<<16 | + dev->dev_addr[1]<<8 | dev->dev_addr[0]; + + for (i = 0; i < NUM_RX_DMA; i++) { + aup->rx_dma_ring[i]->buff_stat |= RX_DMA_ENABLE; + } + au_sync(); + + aup->phy_ops->phy_status(dev, aup->phy_addr, &link, &speed); + control = MAC_DISABLE_RX_OWN | MAC_RX_ENABLE | MAC_TX_ENABLE; +#ifndef CONFIG_CPU_LITTLE_ENDIAN + control |= MAC_BIG_ENDIAN; +#endif + if (link && (dev->if_port == IF_PORT_100BASEFX)) { + control |= MAC_FULL_DUPLEX; + } + + /* fix for startup without cable */ + if (!link) + dev->flags &= ~IFF_RUNNING; + + aup->mac->control = control; + aup->mac->vlan1_tag = 0x8100; /* activate vlan support */ + au_sync(); + + spin_unlock_irqrestore(&aup->lock, flags); + return 0; +} + +static void au1000_timer(unsigned long data) +{ + struct net_device *dev = (struct net_device *)data; + struct au1000_private *aup = (struct au1000_private *) dev->priv; + unsigned char if_port; + u16 link, speed; + + if (!dev) { + /* fatal error, don't restart the timer */ + printk(KERN_ERR "au1000_timer error: NULL dev\n"); + return; + } + + if_port = dev->if_port; + if (aup->phy_ops->phy_status(dev, aup->phy_addr, &link, &speed) == 0) { + if (link) { + if (!(dev->flags & IFF_RUNNING)) { + netif_carrier_on(dev); + dev->flags |= IFF_RUNNING; + printk(KERN_INFO "%s: link up\n", dev->name); + } + } + else { + if (dev->flags & IFF_RUNNING) { + netif_carrier_off(dev); + dev->flags &= ~IFF_RUNNING; + dev->if_port = 0; + printk(KERN_INFO "%s: link down\n", dev->name); + } + } + } + + if (link && (dev->if_port != if_port) && + (dev->if_port != IF_PORT_UNKNOWN)) { + hard_stop(dev); + if (dev->if_port == IF_PORT_100BASEFX) { + printk(KERN_INFO "%s: going to full duplex\n", + dev->name); + aup->mac->control |= MAC_FULL_DUPLEX; + au_sync_delay(1); + } + else { + aup->mac->control &= ~MAC_FULL_DUPLEX; + au_sync_delay(1); + } + enable_rx_tx(dev); + } + + aup->timer.expires = RUN_AT((1*HZ)); + aup->timer.data = (unsigned long)dev; + aup->timer.function = &au1000_timer; /* timer handler */ + add_timer(&aup->timer); + +} + +static int au1000_open(struct net_device *dev) +{ + int retval; + struct au1000_private *aup = (struct au1000_private *) dev->priv; + + if (au1000_debug > 4) + printk("%s: open: dev=%p\n", dev->name, dev); + + if ((retval = au1000_init(dev))) { + printk(KERN_ERR "%s: error in au1000_init\n", dev->name); + free_irq(dev->irq, dev); + return retval; + } + netif_start_queue(dev); + + if ((retval = request_irq(dev->irq, &au1000_interrupt, 0, + dev->name, dev))) { + printk(KERN_ERR "%s: unable to get IRQ %d\n", + dev->name, dev->irq); + return retval; + } + + init_timer(&aup->timer); /* used in ioctl() */ + aup->timer.expires = RUN_AT((3*HZ)); + aup->timer.data = (unsigned long)dev; + aup->timer.function = &au1000_timer; /* timer handler */ + add_timer(&aup->timer); + + if (au1000_debug > 4) + printk("%s: open: Initialization done.\n", dev->name); + + return 0; +} + +static int au1000_close(struct net_device *dev) +{ + u32 flags; + struct au1000_private *aup = (struct au1000_private *) dev->priv; + + if (au1000_debug > 4) + printk("%s: close: dev=%p\n", dev->name, dev); + + reset_mac(dev); + + spin_lock_irqsave(&aup->lock, flags); + + /* stop the device */ + netif_stop_queue(dev); + + /* disable the interrupt */ + free_irq(dev->irq, dev); + spin_unlock_irqrestore(&aup->lock, flags); + + return 0; +} + +static void __exit au1000_cleanup_module(void) +{ + int i, j; + struct net_device *dev; + struct au1000_private *aup; + + for (i = 0; i < num_ifs; i++) { + dev = iflist[i].dev; + if (dev) { + aup = (struct au1000_private *) dev->priv; + unregister_netdev(dev); + if (aup->mii) + kfree(aup->mii); + for (j = 0; j < NUM_RX_DMA; j++) { + if (aup->rx_db_inuse[j]) + ReleaseDB(aup, aup->rx_db_inuse[j]); + } + for (j = 0; j < NUM_TX_DMA; j++) { + if (aup->tx_db_inuse[j]) + ReleaseDB(aup, aup->tx_db_inuse[j]); + } + dma_free_noncoherent(NULL, + MAX_BUF_SIZE * (NUM_TX_BUFFS+NUM_RX_BUFFS), + (void *)aup->vaddr, + aup->dma_addr); + free_netdev(dev); + release_mem_region(CPHYSADDR(iflist[i].base_addr), MAC_IOSIZE); + } + } +} + + +static inline void +update_tx_stats(struct net_device *dev, u32 status, u32 pkt_len) +{ + struct au1000_private *aup = (struct au1000_private *) dev->priv; + struct net_device_stats *ps = &aup->stats; + + ps->tx_packets++; + ps->tx_bytes += pkt_len; + + if (status & TX_FRAME_ABORTED) { + if (dev->if_port == IF_PORT_100BASEFX) { + if (status & (TX_JAB_TIMEOUT | TX_UNDERRUN)) { + /* any other tx errors are only valid + * in half duplex mode */ + ps->tx_errors++; + ps->tx_aborted_errors++; + } + } + else { + ps->tx_errors++; + ps->tx_aborted_errors++; + if (status & (TX_NO_CARRIER | TX_LOSS_CARRIER)) + ps->tx_carrier_errors++; + } + } +} + + +/* + * Called from the interrupt service routine to acknowledge + * the TX DONE bits. This is a must if the irq is setup as + * edge triggered. + */ +static void au1000_tx_ack(struct net_device *dev) +{ + struct au1000_private *aup = (struct au1000_private *) dev->priv; + volatile tx_dma_t *ptxd; + + ptxd = aup->tx_dma_ring[aup->tx_tail]; + + while (ptxd->buff_stat & TX_T_DONE) { + update_tx_stats(dev, ptxd->status, ptxd->len & 0x3ff); + ptxd->buff_stat &= ~TX_T_DONE; + ptxd->len = 0; + au_sync(); + + aup->tx_tail = (aup->tx_tail + 1) & (NUM_TX_DMA - 1); + ptxd = aup->tx_dma_ring[aup->tx_tail]; + + if (aup->tx_full) { + aup->tx_full = 0; + netif_wake_queue(dev); + } + } +} + + +/* + * Au1000 transmit routine. + */ +static int au1000_tx(struct sk_buff *skb, struct net_device *dev) +{ + struct au1000_private *aup = (struct au1000_private *) dev->priv; + volatile tx_dma_t *ptxd; + u32 buff_stat; + db_dest_t *pDB; + int i; + + if (au1000_debug > 5) + printk("%s: tx: aup %x len=%d, data=%p, head %d\n", + dev->name, (unsigned)aup, skb->len, + skb->data, aup->tx_head); + + ptxd = aup->tx_dma_ring[aup->tx_head]; + buff_stat = ptxd->buff_stat; + if (buff_stat & TX_DMA_ENABLE) { + /* We've wrapped around and the transmitter is still busy */ + netif_stop_queue(dev); + aup->tx_full = 1; + return 1; + } + else if (buff_stat & TX_T_DONE) { + update_tx_stats(dev, ptxd->status, ptxd->len & 0x3ff); + ptxd->len = 0; + } + + if (aup->tx_full) { + aup->tx_full = 0; + netif_wake_queue(dev); + } + + pDB = aup->tx_db_inuse[aup->tx_head]; + memcpy((void *)pDB->vaddr, skb->data, skb->len); + if (skb->len < ETH_ZLEN) { + for (i=skb->len; i<ETH_ZLEN; i++) { + ((char *)pDB->vaddr)[i] = 0; + } + ptxd->len = ETH_ZLEN; + } + else + ptxd->len = skb->len; + + ptxd->buff_stat = pDB->dma_addr | TX_DMA_ENABLE; + au_sync(); + dev_kfree_skb(skb); + aup->tx_head = (aup->tx_head + 1) & (NUM_TX_DMA - 1); + dev->trans_start = jiffies; + return 0; +} + + +static inline void update_rx_stats(struct net_device *dev, u32 status) +{ + struct au1000_private *aup = (struct au1000_private *) dev->priv; + struct net_device_stats *ps = &aup->stats; + + ps->rx_packets++; + if (status & RX_MCAST_FRAME) + ps->multicast++; + + if (status & RX_ERROR) { + ps->rx_errors++; + if (status & RX_MISSED_FRAME) + ps->rx_missed_errors++; + if (status & (RX_OVERLEN | RX_OVERLEN | RX_LEN_ERROR)) + ps->rx_length_errors++; + if (status & RX_CRC_ERROR) + ps->rx_crc_errors++; + if (status & RX_COLL) + ps->collisions++; + } + else + ps->rx_bytes += status & RX_FRAME_LEN_MASK; + +} + +/* + * Au1000 receive routine. + */ +static int au1000_rx(struct net_device *dev) +{ + struct au1000_private *aup = (struct au1000_private *) dev->priv; + struct sk_buff *skb; + volatile rx_dma_t *prxd; + u32 buff_stat, status; + db_dest_t *pDB; + u32 frmlen; + + if (au1000_debug > 5) + printk("%s: au1000_rx head %d\n", dev->name, aup->rx_head); + + prxd = aup->rx_dma_ring[aup->rx_head]; + buff_stat = prxd->buff_stat; + while (buff_stat & RX_T_DONE) { + status = prxd->status; + pDB = aup->rx_db_inuse[aup->rx_head]; + update_rx_stats(dev, status); + if (!(status & RX_ERROR)) { + + /* good frame */ + frmlen = (status & RX_FRAME_LEN_MASK); + frmlen -= 4; /* Remove FCS */ + skb = dev_alloc_skb(frmlen + 2); + if (skb == NULL) { + printk(KERN_ERR + "%s: Memory squeeze, dropping packet.\n", + dev->name); + aup->stats.rx_dropped++; + continue; + } + skb->dev = dev; + skb_reserve(skb, 2); /* 16 byte IP header align */ + eth_copy_and_sum(skb, + (unsigned char *)pDB->vaddr, frmlen, 0); + skb_put(skb, frmlen); + skb->protocol = eth_type_trans(skb, dev); + netif_rx(skb); /* pass the packet to upper layers */ + } + else { + if (au1000_debug > 4) { + if (status & RX_MISSED_FRAME) + printk("rx miss\n"); + if (status & RX_WDOG_TIMER) + printk("rx wdog\n"); + if (status & RX_RUNT) + printk("rx runt\n"); + if (status & RX_OVERLEN) + printk("rx overlen\n"); + if (status & RX_COLL) + printk("rx coll\n"); + if (status & RX_MII_ERROR) + printk("rx mii error\n"); + if (status & RX_CRC_ERROR) + printk("rx crc error\n"); + if (status & RX_LEN_ERROR) + printk("rx len error\n"); + if (status & RX_U_CNTRL_FRAME) + printk("rx u control frame\n"); + if (status & RX_MISSED_FRAME) + printk("rx miss\n"); + } + } + prxd->buff_stat = (u32)(pDB->dma_addr | RX_DMA_ENABLE); + aup->rx_head = (aup->rx_head + 1) & (NUM_RX_DMA - 1); + au_sync(); + + /* next descriptor */ + prxd = aup->rx_dma_ring[aup->rx_head]; + buff_stat = prxd->buff_stat; + dev->last_rx = jiffies; + } + return 0; +} + + +/* + * Au1000 interrupt service routine. + */ +static irqreturn_t au1000_interrupt(int irq, void *dev_id, struct pt_regs *regs) +{ + struct net_device *dev = (struct net_device *) dev_id; + + if (dev == NULL) { + printk(KERN_ERR "%s: isr: null dev ptr\n", dev->name); + return IRQ_RETVAL(1); + } + + /* Handle RX interrupts first to minimize chance of overrun */ + + au1000_rx(dev); + au1000_tx_ack(dev); + return IRQ_RETVAL(1); +} + + +/* + * The Tx ring has been full longer than the watchdog timeout + * value. The transmitter must be hung? + */ +static void au1000_tx_timeout(struct net_device *dev) +{ + printk(KERN_ERR "%s: au1000_tx_timeout: dev=%p\n", dev->name, dev); + reset_mac(dev); + au1000_init(dev); + dev->trans_start = jiffies; + netif_wake_queue(dev); +} + + +static unsigned const ethernet_polynomial = 0x04c11db7U; +static inline u32 ether_crc(int length, unsigned char *data) +{ + int crc = -1; + + while(--length >= 0) { + unsigned char current_octet = *data++; + int bit; + for (bit = 0; bit < 8; bit++, current_octet >>= 1) + crc = (crc << 1) ^ + ((crc < 0) ^ (current_octet & 1) ? + ethernet_polynomial : 0); + } + return crc; +} + +static void set_rx_mode(struct net_device *dev) +{ + struct au1000_private *aup = (struct au1000_private *) dev->priv; + + if (au1000_debug > 4) + printk("%s: set_rx_mode: flags=%x\n", dev->name, dev->flags); + + if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */ + aup->mac->control |= MAC_PROMISCUOUS; + printk(KERN_INFO "%s: Promiscuous mode enabled.\n", dev->name); + } else if ((dev->flags & IFF_ALLMULTI) || + dev->mc_count > MULTICAST_FILTER_LIMIT) { + aup->mac->control |= MAC_PASS_ALL_MULTI; + aup->mac->control &= ~MAC_PROMISCUOUS; + printk(KERN_INFO "%s: Pass all multicast\n", dev->name); + } else { + int i; + struct dev_mc_list *mclist; + u32 mc_filter[2]; /* Multicast hash filter */ + + mc_filter[1] = mc_filter[0] = 0; + for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; + i++, mclist = mclist->next) { + set_bit(ether_crc(ETH_ALEN, mclist->dmi_addr)>>26, + (long *)mc_filter); + } + aup->mac->multi_hash_high = mc_filter[1]; + aup->mac->multi_hash_low = mc_filter[0]; + aup->mac->control &= ~MAC_PROMISCUOUS; + aup->mac->control |= MAC_HASH_MODE; + } +} + + +static int au1000_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) +{ + struct au1000_private *aup = (struct au1000_private *)dev->priv; + u16 *data = (u16 *)&rq->ifr_ifru; + + switch(cmd) { + case SIOCDEVPRIVATE: /* Get the address of the PHY in use. */ + case SIOCGMIIPHY: + if (!netif_running(dev)) return -EINVAL; + data[0] = aup->phy_addr; + case SIOCDEVPRIVATE+1: /* Read the specified MII register. */ + case SIOCGMIIREG: + data[3] = mdio_read(dev, data[0], data[1]); + return 0; + case SIOCDEVPRIVATE+2: /* Write the specified MII register */ + case SIOCSMIIREG: + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + mdio_write(dev, data[0], data[1],data[2]); + return 0; + default: + return -EOPNOTSUPP; + } + +} + + +static int au1000_set_config(struct net_device *dev, struct ifmap *map) +{ + struct au1000_private *aup = (struct au1000_private *) dev->priv; + u16 control; + + if (au1000_debug > 4) { + printk("%s: set_config called: dev->if_port %d map->port %x\n", + dev->name, dev->if_port, map->port); + } + + switch(map->port){ + case IF_PORT_UNKNOWN: /* use auto here */ + printk(KERN_INFO "%s: config phy for aneg\n", + dev->name); + dev->if_port = map->port; + /* Link Down: the timer will bring it up */ + netif_carrier_off(dev); + + /* read current control */ + control = mdio_read(dev, aup->phy_addr, MII_CONTROL); + control &= ~(MII_CNTL_FDX | MII_CNTL_F100); + + /* enable auto negotiation and reset the negotiation */ + mdio_write(dev, aup->phy_addr, MII_CONTROL, + control | MII_CNTL_AUTO | + MII_CNTL_RST_AUTO); + + break; + + case IF_PORT_10BASET: /* 10BaseT */ + printk(KERN_INFO "%s: config phy for 10BaseT\n", + dev->name); + dev->if_port = map->port; + + /* Link Down: the timer will bring it up */ + netif_carrier_off(dev); + + /* set Speed to 10Mbps, Half Duplex */ + control = mdio_read(dev, aup->phy_addr, MII_CONTROL); + control &= ~(MII_CNTL_F100 | MII_CNTL_AUTO | + MII_CNTL_FDX); + + /* disable auto negotiation and force 10M/HD mode*/ + mdio_write(dev, aup->phy_addr, MII_CONTROL, control); + break; + + case IF_PORT_100BASET: /* 100BaseT */ + case IF_PORT_100BASETX: /* 100BaseTx */ + printk(KERN_INFO "%s: config phy for 100BaseTX\n", + dev->name); + dev->if_port = map->port; + + /* Link Down: the timer will bring it up */ + netif_carrier_off(dev); + + /* set Speed to 100Mbps, Half Duplex */ + /* disable auto negotiation and enable 100MBit Mode */ + control = mdio_read(dev, aup->phy_addr, MII_CONTROL); + control &= ~(MII_CNTL_AUTO | MII_CNTL_FDX); + control |= MII_CNTL_F100; + mdio_write(dev, aup->phy_addr, MII_CONTROL, control); + break; + + case IF_PORT_100BASEFX: /* 100BaseFx */ + printk(KERN_INFO "%s: config phy for 100BaseFX\n", + dev->name); + dev->if_port = map->port; + + /* Link Down: the timer will bring it up */ + netif_carrier_off(dev); + + /* set Speed to 100Mbps, Full Duplex */ + /* disable auto negotiation and enable 100MBit Mode */ + control = mdio_read(dev, aup->phy_addr, MII_CONTROL); + control &= ~MII_CNTL_AUTO; + control |= MII_CNTL_F100 | MII_CNTL_FDX; + mdio_write(dev, aup->phy_addr, MII_CONTROL, control); + break; + case IF_PORT_10BASE2: /* 10Base2 */ + case IF_PORT_AUI: /* AUI */ + /* These Modes are not supported (are they?)*/ + printk(KERN_ERR "%s: 10Base2/AUI not supported", + dev->name); + return -EOPNOTSUPP; + break; + + default: + printk(KERN_ERR "%s: Invalid media selected", + dev->name); + return -EINVAL; + } + return 0; +} + +static struct net_device_stats *au1000_get_stats(struct net_device *dev) +{ + struct au1000_private *aup = (struct au1000_private *) dev->priv; + + if (au1000_debug > 4) + printk("%s: au1000_get_stats: dev=%p\n", dev->name, dev); + + if (netif_device_present(dev)) { + return &aup->stats; + } + return 0; +} + +module_init(au1000_init_module); +module_exit(au1000_cleanup_module); |