/* * 3c515.c -- 3COM 3C515 Fast Etherlink ISA 10/100BASE-TX driver for etherboot * Copyright (C) 2002 Timothy Legge * * 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. * * 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., 675 Mass Ave, Cambridge, MA 02139, USA. * * Portions of this code: * Copyright (C) 1997-2002 Donald Becker 3c515.c: A 3Com ISA EtherLink XL "Corkscrew" ethernet driver for linux. * Copyright (C) 2001 P.J.H.Fox (fox@roestock.demon.co.uk) ISAPNP Tools * Copyright (c) 2002 Jaroslav Kysela ISA Plug & Play support Linux Kernel * Copyright (C) 2000 Shusuke Nisiyama etherboot-5.0.5 3c595.c * Coptright (C) 1995 Martin Renters etherboot-5.0.5 3c509.c * Copyright (C) 1999 LightSys Technology Services, Inc. etherboot-5.0.5 3c90x.c * Portions Copyright (C) 1999 Steve Smith etherboot-5.0.5 3c90x.c * * The probe and reset functions and defines are direct copies from the * Becker code modified where necessary to make it work for etherboot * * The poll and transmit functions either contain code from or were written by referencing * the above referenced etherboot drivers. This driver would not have been * possible without this prior work * * REVISION HISTORY: * ================ * v0.10 4-17-2002 TJL Initial implementation. * v0.11 4-17-2002 TJL Cleanup of the code * v0.12 4-26-2002 TJL Added ISA Plug and Play for Non-PNP Bioses * v0.13 6-10-2002 TJL Fixed ISA_PNP MAC Address problem * v0.14 9-23-2003 TJL Replaced delay with currticks * * Indent Options: indent -kr -i8 * *********************************************************/ FILE_LICENCE ( GPL2_OR_LATER ); /* to get some global routines like printf */ #include "etherboot.h" /* to get the interface to the body of the program */ #include "nic.h" #include #include /* for ISA_ROM */ #include static void t3c515_wait(unsigned int nticks) { unsigned int to = currticks() + nticks; while (currticks() < to) /* wait */ ; } /* TJL definations */ #define HZ 100 static int if_port; static struct corkscrew_private *vp; /* Brought directly from 3c515.c by Becker */ #define CORKSCREW 1 /* Maximum events (Rx packets, etc.) to handle at each interrupt. static int max_interrupt_work = 20; */ /* Enable the automatic media selection code -- usually set. */ #define AUTOMEDIA 1 /* Allow the use of fragment bus master transfers instead of only programmed-I/O for Vortex cards. Full-bus-master transfers are always enabled by default on Boomerang cards. If VORTEX_BUS_MASTER is defined, the feature may be turned on using 'options'. */ #define VORTEX_BUS_MASTER /* A few values that may be tweaked. */ /* Keep the ring sizes a power of two for efficiency. */ #define TX_RING_SIZE 16 #define RX_RING_SIZE 16 #define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer. */ /* "Knobs" for adjusting internal parameters. */ /* Put out somewhat more debugging messages. (0 - no msg, 1 minimal msgs). */ #define DRIVER_DEBUG 1 /* Some values here only for performance evaluation and path-coverage debugging. static int rx_nocopy, rx_copy, queued_packet; */ #define CORKSCREW_ID 10 #define EL3WINDOW(win_num) \ outw(SelectWindow + (win_num), nic->ioaddr + EL3_CMD) #define EL3_CMD 0x0e #define EL3_STATUS 0x0e #define RX_BYTES_MASK (unsigned short) (0x07ff) enum corkscrew_cmd { TotalReset = 0 << 11, SelectWindow = 1 << 11, StartCoax = 2 << 11, RxDisable = 3 << 11, RxEnable = 4 << 11, RxReset = 5 << 11, UpStall = 6 << 11, UpUnstall = (6 << 11) + 1, DownStall = (6 << 11) + 2, DownUnstall = (6 << 11) + 3, RxDiscard = 8 << 11, TxEnable = 9 << 11, TxDisable = 10 << 11, TxReset = 11 << 11, FakeIntr = 12 << 11, AckIntr = 13 << 11, SetIntrEnb = 14 << 11, SetStatusEnb = 15 << 11, SetRxFilter = 16 << 11, SetRxThreshold = 17 << 11, SetTxThreshold = 18 << 11, SetTxStart = 19 << 11, StartDMAUp = 20 << 11, StartDMADown = (20 << 11) + 1, StatsEnable = 21 << 11, StatsDisable = 22 << 11, StopCoax = 23 << 11, }; /* The SetRxFilter command accepts the following classes: */ enum RxFilter { RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8 }; /* Bits in the general status register. */ enum corkscrew_status { IntLatch = 0x0001, AdapterFailure = 0x0002, TxComplete = 0x0004, TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020, IntReq = 0x0040, StatsFull = 0x0080, DMADone = 1 << 8, DownComplete = 1 << 9, UpComplete = 1 << 10, DMAInProgress = 1 << 11, /* DMA controller is still busy. */ CmdInProgress = 1 << 12, /* EL3_CMD is still busy. */ }; /* Register window 1 offsets, the window used in normal operation. On the Corkscrew this window is always mapped at offsets 0x10-0x1f. */ enum Window1 { TX_FIFO = 0x10, RX_FIFO = 0x10, RxErrors = 0x14, RxStatus = 0x18, Timer = 0x1A, TxStatus = 0x1B, TxFree = 0x1C, /* Remaining free bytes in Tx buffer. */ }; enum Window0 { Wn0IRQ = 0x08, #if defined(CORKSCREW) Wn0EepromCmd = 0x200A, /* Corkscrew EEPROM command register. */ Wn0EepromData = 0x200C, /* Corkscrew EEPROM results register. */ #else Wn0EepromCmd = 10, /* Window 0: EEPROM command register. */ Wn0EepromData = 12, /* Window 0: EEPROM results register. */ #endif }; enum Win0_EEPROM_bits { EEPROM_Read = 0x80, EEPROM_WRITE = 0x40, EEPROM_ERASE = 0xC0, EEPROM_EWENB = 0x30, /* Enable erasing/writing for 10 msec. */ EEPROM_EWDIS = 0x00, /* Disable EWENB before 10 msec timeout. */ }; enum Window3 { /* Window 3: MAC/config bits. */ Wn3_Config = 0, Wn3_MAC_Ctrl = 6, Wn3_Options = 8, }; union wn3_config { int i; struct w3_config_fields { unsigned int ram_size:3, ram_width:1, ram_speed:2, rom_size:2; int pad8:8; unsigned int ram_split:2, pad18:2, xcvr:3, pad21:1, autoselect:1; int pad24:7; } u; }; enum Window4 { Wn4_NetDiag = 6, Wn4_Media = 10, /* Window 4: Xcvr/media bits. */ }; enum Win4_Media_bits { Media_SQE = 0x0008, /* Enable SQE error counting for AUI. */ Media_10TP = 0x00C0, /* Enable link beat and jabber for 10baseT. */ Media_Lnk = 0x0080, /* Enable just link beat for 100TX/100FX. */ Media_LnkBeat = 0x0800, }; enum Window7 { /* Window 7: Bus Master control. */ Wn7_MasterAddr = 0, Wn7_MasterLen = 6, Wn7_MasterStatus = 12, }; /* Boomerang-style bus master control registers. Note ISA aliases! */ enum MasterCtrl { PktStatus = 0x400, DownListPtr = 0x404, FragAddr = 0x408, FragLen = 0x40c, TxFreeThreshold = 0x40f, UpPktStatus = 0x410, UpListPtr = 0x418, }; /* The Rx and Tx descriptor lists. Caution Alpha hackers: these types are 32 bits! Note also the 8 byte alignment contraint on tx_ring[] and rx_ring[]. */ struct boom_rx_desc { u32 next; s32 status; u32 addr; s32 length; }; /* Values for the Rx status entry. */ enum rx_desc_status { RxDComplete = 0x00008000, RxDError = 0x4000, /* See boomerang_rx() for actual error bits */ }; struct boom_tx_desc { u32 next; s32 status; u32 addr; s32 length; }; struct corkscrew_private { const char *product_name; struct net_device *next_module; /* The Rx and Tx rings are here to keep them quad-word-aligned. */ struct boom_rx_desc rx_ring[RX_RING_SIZE]; struct boom_tx_desc tx_ring[TX_RING_SIZE]; /* The addresses of transmit- and receive-in-place skbuffs. */ struct sk_buff *rx_skbuff[RX_RING_SIZE]; struct sk_buff *tx_skbuff[TX_RING_SIZE]; unsigned int cur_rx, cur_tx; /* The next free ring entry */ unsigned int dirty_rx, dirty_tx; /* The ring entries to be free()ed. */ struct sk_buff *tx_skb; /* Packet being eaten by bus master ctrl. */ int capabilities; /* Adapter capabilities word. */ int options; /* User-settable misc. driver options. */ int last_rx_packets; /* For media autoselection. */ unsigned int available_media:8, /* From Wn3_Options */ media_override:3, /* Passed-in media type. */ default_media:3, /* Read from the EEPROM. */ full_duplex:1, autoselect:1, bus_master:1, /* Vortex can only do a fragment bus-m. */ full_bus_master_tx:1, full_bus_master_rx:1, /* Boomerang */ tx_full:1; }; /* The action to take with a media selection timer tick. Note that we deviate from the 3Com order by checking 10base2 before AUI. */ enum xcvr_types { XCVR_10baseT = 0, XCVR_AUI, XCVR_10baseTOnly, XCVR_10base2, XCVR_100baseTx, XCVR_100baseFx, XCVR_MII = 6, XCVR_Default = 8, }; static struct media_table { char *name; unsigned int media_bits:16, /* Bits to set in Wn4_Media register. */ mask:8, /* The transceiver-present bit in Wn3_Config. */ next:8; /* The media type to try next. */ short wait; /* Time before we check media status. */ } media_tbl[] = { { "10baseT", Media_10TP, 0x08, XCVR_10base2, (14 * HZ) / 10} , { "10Mbs AUI", Media_SQE, 0x20, XCVR_Default, (1 * HZ) / 10} , { "undefined", 0, 0x80, XCVR_10baseT, 10000} , { "10base2", 0, 0x10, XCVR_AUI, (1 * HZ) / 10} , { "100baseTX", Media_Lnk, 0x02, XCVR_100baseFx, (14 * HZ) / 10} , { "100baseFX", Media_Lnk, 0x04, XCVR_MII, (14 * HZ) / 10} , { "MII", 0, 0x40, XCVR_10baseT, 3 * HZ} , { "undefined", 0, 0x01, XCVR_10baseT, 10000} , { "Default", 0, 0xFF, XCVR_10baseT, 10000} ,}; /* TILEG Modified to remove reference to dev */ static int corkscrew_found_device(int ioaddr, int irq, int product_index, int options, struct nic *nic); static int corkscrew_probe1(int ioaddr, int irq, int product_index, struct nic *nic); /* This driver uses 'options' to pass the media type, full-duplex flag, etc. */ /* Note: this is the only limit on the number of cards supported!! */ static int options = -1; /* End Brought directly from 3c515.c by Becker */ /************************************************************************** RESET - Reset adapter ***************************************************************************/ static void t515_reset(struct nic *nic) { union wn3_config config; int i; /* Before initializing select the active media port. */ EL3WINDOW(3); if (vp->full_duplex) outb(0x20, nic->ioaddr + Wn3_MAC_Ctrl); /* Set the full-duplex bit. */ config.i = inl(nic->ioaddr + Wn3_Config); if (vp->media_override != 7) { DBG ( "Media override to transceiver %d (%s).\n", vp->media_override, media_tbl[vp->media_override].name); if_port = vp->media_override; } else if (vp->autoselect) { /* Find first available media type, starting with 100baseTx. */ if_port = 4; while (!(vp->available_media & media_tbl[if_port].mask)) if_port = media_tbl[if_port].next; DBG ( "Initial media type %s.\n", media_tbl[if_port].name); } else if_port = vp->default_media; config.u.xcvr = if_port; outl(config.i, nic->ioaddr + Wn3_Config); DBG ( "corkscrew_open() InternalConfig 0x%hX.\n", config.i); outw(TxReset, nic->ioaddr + EL3_CMD); for (i = 20; i >= 0; i--) if (!(inw(nic->ioaddr + EL3_STATUS) & CmdInProgress)) break; outw(RxReset, nic->ioaddr + EL3_CMD); /* Wait a few ticks for the RxReset command to complete. */ for (i = 20; i >= 0; i--) if (!(inw(nic->ioaddr + EL3_STATUS) & CmdInProgress)) break; outw(SetStatusEnb | 0x00, nic->ioaddr + EL3_CMD); #ifdef debug_3c515 EL3WINDOW(4); DBG ( "FIXME: fix print for irq, not 9" ); DBG ( "corkscrew_open() irq %d media status 0x%hX.\n", 9, inw(nic->ioaddr + Wn4_Media) ); #endif /* Set the station address and mask in window 2 each time opened. */ EL3WINDOW(2); for (i = 0; i < 6; i++) outb(nic->node_addr[i], nic->ioaddr + i); for (; i < 12; i += 2) outw(0, nic->ioaddr + i); if (if_port == 3) /* Start the thinnet transceiver. We should really wait 50ms... */ outw(StartCoax, nic->ioaddr + EL3_CMD); EL3WINDOW(4); outw((inw(nic->ioaddr + Wn4_Media) & ~(Media_10TP | Media_SQE)) | media_tbl[if_port].media_bits, nic->ioaddr + Wn4_Media); /* Switch to the stats window, and clear all stats by reading. */ /* outw(StatsDisable, nic->ioaddr + EL3_CMD);*/ EL3WINDOW(6); for (i = 0; i < 10; i++) inb(nic->ioaddr + i); inw(nic->ioaddr + 10); inw(nic->ioaddr + 12); /* New: On the Vortex we must also clear the BadSSD counter. */ EL3WINDOW(4); inb(nic->ioaddr + 12); /* ..and on the Boomerang we enable the extra statistics bits. */ outw(0x0040, nic->ioaddr + Wn4_NetDiag); /* Switch to register set 7 for normal use. */ EL3WINDOW(7); /* Temporarily left in place. If these FIXMEs are printed it meand that special logic for that card may need to be added see Becker's 3c515.c driver */ if (vp->full_bus_master_rx) { /* Boomerang bus master. */ printf("FIXME: Is this if necessary"); vp->cur_rx = vp->dirty_rx = 0; DBG ( " Filling in the Rx ring.\n" ); for (i = 0; i < RX_RING_SIZE; i++) { printf("FIXME: Is this if necessary"); } } if (vp->full_bus_master_tx) { /* Boomerang bus master Tx. */ vp->cur_tx = vp->dirty_tx = 0; outb(PKT_BUF_SZ >> 8, nic->ioaddr + TxFreeThreshold); /* Room for a packet. */ /* Clear the Tx ring. */ for (i = 0; i < TX_RING_SIZE; i++) vp->tx_skbuff[i] = 0; outl(0, nic->ioaddr + DownListPtr); } /* Set receiver mode: presumably accept b-case and phys addr only. */ outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast | RxProm, nic->ioaddr + EL3_CMD); outw(RxEnable, nic->ioaddr + EL3_CMD); /* Enable the receiver. */ outw(TxEnable, nic->ioaddr + EL3_CMD); /* Enable transmitter. */ /* Allow status bits to be seen. */ outw(SetStatusEnb | AdapterFailure | IntReq | StatsFull | (vp->full_bus_master_tx ? DownComplete : TxAvailable) | (vp->full_bus_master_rx ? UpComplete : RxComplete) | (vp->bus_master ? DMADone : 0), nic->ioaddr + EL3_CMD); /* Ack all pending events, and set active indicator mask. */ outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq, nic->ioaddr + EL3_CMD); outw(SetIntrEnb | IntLatch | TxAvailable | RxComplete | StatsFull | (vp->bus_master ? DMADone : 0) | UpComplete | DownComplete, nic->ioaddr + EL3_CMD); } /************************************************************************** POLL - Wait for a frame ***************************************************************************/ static int t515_poll(struct nic *nic, int retrieve) { short status, cst; register short rx_fifo; cst = inw(nic->ioaddr + EL3_STATUS); if ((cst & RxComplete) == 0) { /* Ack all pending events, and set active indicator mask. */ outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq, nic->ioaddr + EL3_CMD); outw(SetIntrEnb | IntLatch | TxAvailable | RxComplete | StatsFull | (vp-> bus_master ? DMADone : 0) | UpComplete | DownComplete, nic->ioaddr + EL3_CMD); return 0; } status = inw(nic->ioaddr + RxStatus); if (status & RxDError) { printf("RxDError\n"); outw(RxDiscard, nic->ioaddr + EL3_CMD); return 0; } rx_fifo = status & RX_BYTES_MASK; if (rx_fifo == 0) return 0; if ( ! retrieve ) return 1; DBG ( "[l=%d", rx_fifo ); insw(nic->ioaddr + RX_FIFO, nic->packet, rx_fifo / 2); if (rx_fifo & 1) nic->packet[rx_fifo - 1] = inb(nic->ioaddr + RX_FIFO); nic->packetlen = rx_fifo; while (1) { status = inw(nic->ioaddr + RxStatus); DBG ( "0x%hX*", status ); rx_fifo = status & RX_BYTES_MASK; if (rx_fifo > 0) { insw(nic->ioaddr + RX_FIFO, nic->packet + nic->packetlen, rx_fifo / 2); if (rx_fifo & 1) nic->packet[nic->packetlen + rx_fifo - 1] = inb(nic->ioaddr + RX_FIFO); nic->packetlen += rx_fifo; DBG ( "+%d", rx_fifo ); } if ((status & RxComplete) == 0) { DBG ( "=%d", nic->packetlen ); break; } udelay(1000); } /* acknowledge reception of packet */ outw(RxDiscard, nic->ioaddr + EL3_CMD); while (inw(nic->ioaddr + EL3_STATUS) & CmdInProgress); #ifdef debug_3c515 { unsigned short type = 0; type = (nic->packet[12] << 8) | nic->packet[13]; if (nic->packet[0] + nic->packet[1] + nic->packet[2] + nic->packet[3] + nic->packet[4] + nic->packet[5] == 0xFF * ETH_ALEN) DBG ( ",t=0x%hX,b]", type ); else DBG ( ",t=0x%hX]", type ); } #endif return 1; } /************************************************************************* 3Com 515 - specific routines **************************************************************************/ static char padmap[] = { 0, 3, 2, 1 }; /************************************************************************** TRANSMIT - Transmit a frame ***************************************************************************/ static void t515_transmit(struct nic *nic, const char *d, /* Destination */ unsigned int t, /* Type */ unsigned int s, /* size */ const char *p) { /* Packet */ register int len; int pad; int status; DBG ( "{l=%d,t=0x%hX}", s + ETH_HLEN, t ); /* swap bytes of type */ t = htons(t); len = s + ETH_HLEN; /* actual length of packet */ pad = padmap[len & 3]; /* * The 3c515 automatically pads short packets to minimum ethernet length, * but we drop packets that are too large. Perhaps we should truncate * them instead? Copied from 3c595. Is this true for the 3c515? */ if (len + pad > ETH_FRAME_LEN) { return; } /* drop acknowledgements */ while ((status = inb(nic->ioaddr + TxStatus)) & TxComplete) { /*if(status & (TXS_UNDERRUN|0x88|TXS_STATUS_OVERFLOW)) { */ outw(TxReset, nic->ioaddr + EL3_CMD); outw(TxEnable, nic->ioaddr + EL3_CMD); /* } */ outb(0x0, nic->ioaddr + TxStatus); } while (inw(nic->ioaddr + TxFree) < len + pad + 4) { /* no room in FIFO */ } outw(len, nic->ioaddr + TX_FIFO); outw(0x0, nic->ioaddr + TX_FIFO); /* Second dword meaningless */ /* write packet */ outsw(nic->ioaddr + TX_FIFO, d, ETH_ALEN / 2); outsw(nic->ioaddr + TX_FIFO, nic->node_addr, ETH_ALEN / 2); outw(t, nic->ioaddr + TX_FIFO); outsw(nic->ioaddr + TX_FIFO, p, s / 2); if (s & 1) outb(*(p + s - 1), nic->ioaddr + TX_FIFO); while (pad--) outb(0, nic->ioaddr + TX_FIFO); /* Padding */ /* wait for Tx complete */ while ((inw(nic->ioaddr + EL3_STATUS) & CmdInProgress) != 0); } /************************************************************************** DISABLE - Turn off ethernet interface ***************************************************************************/ static void t515_disable ( struct nic *nic, struct isapnp_device *isapnp ) { t515_reset(nic); /* This is a hack. Since ltsp worked on my system without any disable functionality I have no way to determine if this works */ /* Disable the receiver and transmitter. */ outw(RxDisable, nic->ioaddr + EL3_CMD); outw(TxDisable, nic->ioaddr + EL3_CMD); if (if_port == XCVR_10base2) /* Turn off thinnet power. Green! */ outw(StopCoax, nic->ioaddr + EL3_CMD); outw(SetIntrEnb | 0x0000, nic->ioaddr + EL3_CMD); deactivate_isapnp_device ( isapnp ); return; } static void t515_irq(struct nic *nic __unused, irq_action_t action __unused) { switch ( action ) { case DISABLE : break; case ENABLE : break; case FORCE : break; } } static struct nic_operations t515_operations = { .connect = dummy_connect, .poll = t515_poll, .transmit = t515_transmit, .irq = t515_irq, }; /************************************************************************** PROBE - Look for an adapter, this routine's visible to the outside You should omit the last argument struct pci_device * for a non-PCI NIC ***************************************************************************/ static int t515_probe ( struct nic *nic, struct isapnp_device *isapnp ) { /* Direct copy from Beckers 3c515.c removing any ISAPNP sections */ nic->ioaddr = isapnp->ioaddr; nic->irqno = isapnp->irqno; activate_isapnp_device ( isapnp ); /* Check the resource configuration for a matching ioaddr. */ if ((unsigned)(inw(nic->ioaddr + 0x2002) & 0x1f0) != (nic->ioaddr & 0x1f0)) { DBG ( "3c515 ioaddr mismatch\n" ); return 0; } /* Verify by reading the device ID from the EEPROM. */ { int timer; outw(EEPROM_Read + 7, nic->ioaddr + Wn0EepromCmd); /* Pause for at least 162 us. for the read to take place. */ for (timer = 4; timer >= 0; timer--) { t3c515_wait(1); if ((inw(nic->ioaddr + Wn0EepromCmd) & 0x0200) == 0) break; } if (inw(nic->ioaddr + Wn0EepromData) != 0x6d50) { DBG ( "3c515 read incorrect vendor ID from EEPROM" ); return 0; } } DBG ( "3c515 Resource configuration register 0x%X, DCR 0x%hX.\n", inl(nic->ioaddr + 0x2002), inw(nic->ioaddr + 0x2000) ); corkscrew_found_device(nic->ioaddr, nic->irqno, CORKSCREW_ID, options, nic); t515_reset(nic); nic->nic_op = &t515_operations; return 1; } static int corkscrew_found_device(int ioaddr, int irq, int product_index, int options, struct nic *nic) { /* Direct copy from Becker 3c515.c with unecessary parts removed */ vp->product_name = "3c515"; vp->options = options; if (options >= 0) { vp->media_override = ((options & 7) == 2) ? 0 : options & 7; vp->full_duplex = (options & 8) ? 1 : 0; vp->bus_master = (options & 16) ? 1 : 0; } else { vp->media_override = 7; vp->full_duplex = 0; vp->bus_master = 0; } corkscrew_probe1(ioaddr, irq, product_index, nic); return 0; } static int corkscrew_probe1(int ioaddr, int irq, int product_index __unused, struct nic *nic) { unsigned int eeprom[0x40], checksum = 0; /* EEPROM contents */ int i; printf("3Com %s at 0x%hX, ", vp->product_name, ioaddr); /* Read the station address from the EEPROM. */ EL3WINDOW(0); for (i = 0; i < 0x18; i++) { short *phys_addr = (short *) nic->node_addr; int timer; outw(EEPROM_Read + i, ioaddr + Wn0EepromCmd); /* Pause for at least 162 us. for the read to take place. */ for (timer = 4; timer >= 0; timer--) { t3c515_wait(1); if ((inw(ioaddr + Wn0EepromCmd) & 0x0200) == 0) break; } eeprom[i] = inw(ioaddr + Wn0EepromData); DBG ( "Value %d: %hX ", i, eeprom[i] ); checksum ^= eeprom[i]; if (i < 3) phys_addr[i] = htons(eeprom[i]); } checksum = (checksum ^ (checksum >> 8)) & 0xff; if (checksum != 0x00) printf(" ***INVALID CHECKSUM 0x%hX*** ", checksum); DBG ( "%s", eth_ntoa ( nic->node_addr ) ); if (eeprom[16] == 0x11c7) { /* Corkscrew */ } printf(", IRQ %d\n", irq); /* Tell them about an invalid IRQ. */ if ( (irq <= 0 || irq > 15) ) { DBG (" *** Warning: this IRQ is unlikely to work! ***\n" ); } { char *ram_split[] = { "5:3", "3:1", "1:1", "3:5" }; union wn3_config config; EL3WINDOW(3); vp->available_media = inw(ioaddr + Wn3_Options); config.i = inl(ioaddr + Wn3_Config); DBG ( " Internal config register is %4.4x, " "transceivers 0x%hX.\n", config.i, inw(ioaddr + Wn3_Options) ); printf (" %dK %s-wide RAM %s Rx:Tx split, %s%s interface.\n", 8 << config.u.ram_size, config.u.ram_width ? "word" : "byte", ram_split[config.u.ram_split], config.u.autoselect ? "autoselect/" : "", media_tbl[config.u.xcvr].name); if_port = config.u.xcvr; vp->default_media = config.u.xcvr; vp->autoselect = config.u.autoselect; } if (vp->media_override != 7) { printf(" Media override to transceiver type %d (%s).\n", vp->media_override, media_tbl[vp->media_override].name); if_port = vp->media_override; } vp->capabilities = eeprom[16]; vp->full_bus_master_tx = (vp->capabilities & 0x20) ? 1 : 0; /* Rx is broken at 10mbps, so we always disable it. */ /* vp->full_bus_master_rx = 0; */ vp->full_bus_master_rx = (vp->capabilities & 0x20) ? 1 : 0; return 0; } static struct isapnp_device_id t515_adapters[] = { { "3c515 (ISAPnP)", ISAPNP_VENDOR('T','C','M'), 0x5051 }, }; ISAPNP_DRIVER ( t515_driver, t515_adapters ); DRIVER ( "3c515", nic_driver, isapnp_driver, t515_driver, t515_probe, t515_disable ); ISA_ROM ( "3c515", "3c515 Fast EtherLink ISAPnP" );