diff options
Diffstat (limited to 'gpxe/src/drivers/net/3c515.c')
| -rw-r--r-- | gpxe/src/drivers/net/3c515.c | 763 |
1 files changed, 0 insertions, 763 deletions
diff --git a/gpxe/src/drivers/net/3c515.c b/gpxe/src/drivers/net/3c515.c deleted file mode 100644 index eb9569fb..00000000 --- a/gpxe/src/drivers/net/3c515.c +++ /dev/null @@ -1,763 +0,0 @@ -/* -* 3c515.c -- 3COM 3C515 Fast Etherlink ISA 10/100BASE-TX driver for etherboot -* Copyright (C) 2002 Timothy Legge <tlegge@rogers.com> -* -* 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 <perex@suse.cz> ISA Plug & Play support Linux Kernel -* Copyright (C) 2000 Shusuke Nisiyama <shu@athena.qe.eng.hokudai.ac.jp> 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 <gpxe/isapnp.h> -#include <gpxe/isa.h> /* for ISA_ROM */ -#include <gpxe/ethernet.h> - -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" ); |