![Michael Brown](/assets/img/avatar_default.png)
Add FILE_LICENCE declarations to almost all files that make up the various standard builds of gPXE.
764 lines
24 KiB
C
764 lines
24 KiB
C
/*
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* 3c515.c -- 3COM 3C515 Fast Etherlink ISA 10/100BASE-TX driver for etherboot
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* Copyright (C) 2002 Timothy Legge <tlegge@rogers.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* Portions of this code:
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* Copyright (C) 1997-2002 Donald Becker 3c515.c: A 3Com ISA EtherLink XL "Corkscrew" ethernet driver for linux.
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* Copyright (C) 2001 P.J.H.Fox (fox@roestock.demon.co.uk) ISAPNP Tools
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* Copyright (c) 2002 Jaroslav Kysela <perex@suse.cz> ISA Plug & Play support Linux Kernel
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* Copyright (C) 2000 Shusuke Nisiyama <shu@athena.qe.eng.hokudai.ac.jp> etherboot-5.0.5 3c595.c
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* Coptright (C) 1995 Martin Renters etherboot-5.0.5 3c509.c
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* Copyright (C) 1999 LightSys Technology Services, Inc. etherboot-5.0.5 3c90x.c
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* Portions Copyright (C) 1999 Steve Smith etherboot-5.0.5 3c90x.c
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*
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* The probe and reset functions and defines are direct copies from the
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* Becker code modified where necessary to make it work for etherboot
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*
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* The poll and transmit functions either contain code from or were written by referencing
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* the above referenced etherboot drivers. This driver would not have been
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* possible without this prior work
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*
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* REVISION HISTORY:
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* ================
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* v0.10 4-17-2002 TJL Initial implementation.
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* v0.11 4-17-2002 TJL Cleanup of the code
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* v0.12 4-26-2002 TJL Added ISA Plug and Play for Non-PNP Bioses
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* v0.13 6-10-2002 TJL Fixed ISA_PNP MAC Address problem
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* v0.14 9-23-2003 TJL Replaced delay with currticks
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*
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* Indent Options: indent -kr -i8
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* *********************************************************/
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FILE_LICENCE ( GPL2_OR_LATER );
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/* to get some global routines like printf */
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#include "etherboot.h"
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/* to get the interface to the body of the program */
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#include "nic.h"
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#include <gpxe/isapnp.h>
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#include <gpxe/isa.h> /* for ISA_ROM */
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#include <gpxe/ethernet.h>
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static void t3c515_wait(unsigned int nticks)
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{
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unsigned int to = currticks() + nticks;
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while (currticks() < to)
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/* wait */ ;
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}
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/* TJL definations */
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#define HZ 100
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static int if_port;
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static struct corkscrew_private *vp;
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/* Brought directly from 3c515.c by Becker */
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#define CORKSCREW 1
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/* Maximum events (Rx packets, etc.) to handle at each interrupt.
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static int max_interrupt_work = 20;
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*/
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/* Enable the automatic media selection code -- usually set. */
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#define AUTOMEDIA 1
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/* Allow the use of fragment bus master transfers instead of only
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programmed-I/O for Vortex cards. Full-bus-master transfers are always
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enabled by default on Boomerang cards. If VORTEX_BUS_MASTER is defined,
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the feature may be turned on using 'options'. */
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#define VORTEX_BUS_MASTER
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/* A few values that may be tweaked. */
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/* Keep the ring sizes a power of two for efficiency. */
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#define TX_RING_SIZE 16
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#define RX_RING_SIZE 16
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#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer. */
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/* "Knobs" for adjusting internal parameters. */
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/* Put out somewhat more debugging messages. (0 - no msg, 1 minimal msgs). */
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#define DRIVER_DEBUG 1
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/* Some values here only for performance evaluation and path-coverage
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debugging.
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static int rx_nocopy, rx_copy, queued_packet;
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*/
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#define CORKSCREW_ID 10
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#define EL3WINDOW(win_num) \
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outw(SelectWindow + (win_num), nic->ioaddr + EL3_CMD)
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#define EL3_CMD 0x0e
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#define EL3_STATUS 0x0e
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#define RX_BYTES_MASK (unsigned short) (0x07ff)
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enum corkscrew_cmd {
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TotalReset = 0 << 11, SelectWindow = 1 << 11, StartCoax = 2 << 11,
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RxDisable = 3 << 11, RxEnable = 4 << 11, RxReset = 5 << 11,
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UpStall = 6 << 11, UpUnstall = (6 << 11) + 1,
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DownStall = (6 << 11) + 2, DownUnstall = (6 << 11) + 3,
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RxDiscard = 8 << 11, TxEnable = 9 << 11, TxDisable =
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10 << 11, TxReset = 11 << 11,
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FakeIntr = 12 << 11, AckIntr = 13 << 11, SetIntrEnb = 14 << 11,
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SetStatusEnb = 15 << 11, SetRxFilter = 16 << 11, SetRxThreshold =
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17 << 11,
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SetTxThreshold = 18 << 11, SetTxStart = 19 << 11,
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StartDMAUp = 20 << 11, StartDMADown = (20 << 11) + 1, StatsEnable =
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21 << 11,
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StatsDisable = 22 << 11, StopCoax = 23 << 11,
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};
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/* The SetRxFilter command accepts the following classes: */
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enum RxFilter {
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RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8
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};
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/* Bits in the general status register. */
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enum corkscrew_status {
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IntLatch = 0x0001, AdapterFailure = 0x0002, TxComplete = 0x0004,
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TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020,
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IntReq = 0x0040, StatsFull = 0x0080,
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DMADone = 1 << 8, DownComplete = 1 << 9, UpComplete = 1 << 10,
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DMAInProgress = 1 << 11, /* DMA controller is still busy. */
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CmdInProgress = 1 << 12, /* EL3_CMD is still busy. */
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};
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/* Register window 1 offsets, the window used in normal operation.
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On the Corkscrew this window is always mapped at offsets 0x10-0x1f. */
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enum Window1 {
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TX_FIFO = 0x10, RX_FIFO = 0x10, RxErrors = 0x14,
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RxStatus = 0x18, Timer = 0x1A, TxStatus = 0x1B,
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TxFree = 0x1C, /* Remaining free bytes in Tx buffer. */
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};
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enum Window0 {
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Wn0IRQ = 0x08,
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#if defined(CORKSCREW)
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Wn0EepromCmd = 0x200A, /* Corkscrew EEPROM command register. */
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Wn0EepromData = 0x200C, /* Corkscrew EEPROM results register. */
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#else
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Wn0EepromCmd = 10, /* Window 0: EEPROM command register. */
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Wn0EepromData = 12, /* Window 0: EEPROM results register. */
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#endif
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};
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enum Win0_EEPROM_bits {
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EEPROM_Read = 0x80, EEPROM_WRITE = 0x40, EEPROM_ERASE = 0xC0,
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EEPROM_EWENB = 0x30, /* Enable erasing/writing for 10 msec. */
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EEPROM_EWDIS = 0x00, /* Disable EWENB before 10 msec timeout. */
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};
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enum Window3 { /* Window 3: MAC/config bits. */
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Wn3_Config = 0, Wn3_MAC_Ctrl = 6, Wn3_Options = 8,
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};
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union wn3_config {
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int i;
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struct w3_config_fields {
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unsigned int ram_size:3, ram_width:1, ram_speed:2,
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rom_size:2;
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int pad8:8;
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unsigned int ram_split:2, pad18:2, xcvr:3, pad21:1,
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autoselect:1;
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int pad24:7;
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} u;
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};
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enum Window4 {
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Wn4_NetDiag = 6, Wn4_Media = 10, /* Window 4: Xcvr/media bits. */
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};
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enum Win4_Media_bits {
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Media_SQE = 0x0008, /* Enable SQE error counting for AUI. */
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Media_10TP = 0x00C0, /* Enable link beat and jabber for 10baseT. */
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Media_Lnk = 0x0080, /* Enable just link beat for 100TX/100FX. */
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Media_LnkBeat = 0x0800,
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};
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enum Window7 { /* Window 7: Bus Master control. */
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Wn7_MasterAddr = 0, Wn7_MasterLen = 6, Wn7_MasterStatus = 12,
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};
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/* Boomerang-style bus master control registers. Note ISA aliases! */
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enum MasterCtrl {
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PktStatus = 0x400, DownListPtr = 0x404, FragAddr = 0x408, FragLen =
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0x40c,
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TxFreeThreshold = 0x40f, UpPktStatus = 0x410, UpListPtr = 0x418,
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};
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/* The Rx and Tx descriptor lists.
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Caution Alpha hackers: these types are 32 bits! Note also the 8 byte
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alignment contraint on tx_ring[] and rx_ring[]. */
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struct boom_rx_desc {
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u32 next;
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s32 status;
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u32 addr;
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s32 length;
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};
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/* Values for the Rx status entry. */
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enum rx_desc_status {
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RxDComplete = 0x00008000, RxDError = 0x4000,
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/* See boomerang_rx() for actual error bits */
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};
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struct boom_tx_desc {
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u32 next;
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s32 status;
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u32 addr;
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s32 length;
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};
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struct corkscrew_private {
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const char *product_name;
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struct net_device *next_module;
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/* The Rx and Tx rings are here to keep them quad-word-aligned. */
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struct boom_rx_desc rx_ring[RX_RING_SIZE];
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struct boom_tx_desc tx_ring[TX_RING_SIZE];
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/* The addresses of transmit- and receive-in-place skbuffs. */
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struct sk_buff *rx_skbuff[RX_RING_SIZE];
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struct sk_buff *tx_skbuff[TX_RING_SIZE];
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unsigned int cur_rx, cur_tx; /* The next free ring entry */
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unsigned int dirty_rx, dirty_tx; /* The ring entries to be free()ed. */
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struct sk_buff *tx_skb; /* Packet being eaten by bus master ctrl. */
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int capabilities; /* Adapter capabilities word. */
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int options; /* User-settable misc. driver options. */
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int last_rx_packets; /* For media autoselection. */
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unsigned int available_media:8, /* From Wn3_Options */
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media_override:3, /* Passed-in media type. */
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default_media:3, /* Read from the EEPROM. */
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full_duplex:1, autoselect:1, bus_master:1, /* Vortex can only do a fragment bus-m. */
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full_bus_master_tx:1, full_bus_master_rx:1, /* Boomerang */
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tx_full:1;
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};
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/* The action to take with a media selection timer tick.
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Note that we deviate from the 3Com order by checking 10base2 before AUI.
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*/
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enum xcvr_types {
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XCVR_10baseT =
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0, XCVR_AUI, XCVR_10baseTOnly, XCVR_10base2, XCVR_100baseTx,
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XCVR_100baseFx, XCVR_MII = 6, XCVR_Default = 8,
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};
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static struct media_table {
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char *name;
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unsigned int media_bits:16, /* Bits to set in Wn4_Media register. */
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mask:8, /* The transceiver-present bit in Wn3_Config. */
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next:8; /* The media type to try next. */
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short wait; /* Time before we check media status. */
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} media_tbl[] = {
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{
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"10baseT", Media_10TP, 0x08, XCVR_10base2, (14 * HZ) / 10}
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, {
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"10Mbs AUI", Media_SQE, 0x20, XCVR_Default, (1 * HZ) / 10}
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, {
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"undefined", 0, 0x80, XCVR_10baseT, 10000}
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, {
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"10base2", 0, 0x10, XCVR_AUI, (1 * HZ) / 10}
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, {
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"100baseTX", Media_Lnk, 0x02, XCVR_100baseFx,
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(14 * HZ) / 10}
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, {
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"100baseFX", Media_Lnk, 0x04, XCVR_MII, (14 * HZ) / 10}
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, {
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"MII", 0, 0x40, XCVR_10baseT, 3 * HZ}
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, {
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"undefined", 0, 0x01, XCVR_10baseT, 10000}
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, {
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"Default", 0, 0xFF, XCVR_10baseT, 10000}
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,};
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/* TILEG Modified to remove reference to dev */
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static int corkscrew_found_device(int ioaddr, int irq, int product_index,
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int options, struct nic *nic);
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static int corkscrew_probe1(int ioaddr, int irq, int product_index,
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struct nic *nic);
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/* This driver uses 'options' to pass the media type, full-duplex flag, etc. */
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/* Note: this is the only limit on the number of cards supported!! */
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static int options = -1;
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/* End Brought directly from 3c515.c by Becker */
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/**************************************************************************
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RESET - Reset adapter
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***************************************************************************/
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static void t515_reset(struct nic *nic)
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{
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union wn3_config config;
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int i;
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/* Before initializing select the active media port. */
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EL3WINDOW(3);
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if (vp->full_duplex)
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outb(0x20, nic->ioaddr + Wn3_MAC_Ctrl); /* Set the full-duplex bit. */
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config.i = inl(nic->ioaddr + Wn3_Config);
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if (vp->media_override != 7) {
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DBG ( "Media override to transceiver %d (%s).\n",
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vp->media_override,
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media_tbl[vp->media_override].name);
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if_port = vp->media_override;
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} else if (vp->autoselect) {
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/* Find first available media type, starting with 100baseTx. */
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if_port = 4;
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while (!(vp->available_media & media_tbl[if_port].mask))
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if_port = media_tbl[if_port].next;
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DBG ( "Initial media type %s.\n",
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media_tbl[if_port].name);
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} else
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if_port = vp->default_media;
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config.u.xcvr = if_port;
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outl(config.i, nic->ioaddr + Wn3_Config);
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DBG ( "corkscrew_open() InternalConfig 0x%hX.\n",
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config.i);
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outw(TxReset, nic->ioaddr + EL3_CMD);
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for (i = 20; i >= 0; i--)
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if (!(inw(nic->ioaddr + EL3_STATUS) & CmdInProgress))
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break;
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outw(RxReset, nic->ioaddr + EL3_CMD);
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/* Wait a few ticks for the RxReset command to complete. */
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for (i = 20; i >= 0; i--)
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if (!(inw(nic->ioaddr + EL3_STATUS) & CmdInProgress))
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break;
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outw(SetStatusEnb | 0x00, nic->ioaddr + EL3_CMD);
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#ifdef debug_3c515
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EL3WINDOW(4);
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DBG ( "FIXME: fix print for irq, not 9" );
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DBG ( "corkscrew_open() irq %d media status 0x%hX.\n",
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9, inw(nic->ioaddr + Wn4_Media) );
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#endif
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/* Set the station address and mask in window 2 each time opened. */
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EL3WINDOW(2);
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for (i = 0; i < 6; i++)
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outb(nic->node_addr[i], nic->ioaddr + i);
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for (; i < 12; i += 2)
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outw(0, nic->ioaddr + i);
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if (if_port == 3)
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/* Start the thinnet transceiver. We should really wait 50ms... */
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outw(StartCoax, nic->ioaddr + EL3_CMD);
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EL3WINDOW(4);
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outw((inw(nic->ioaddr + Wn4_Media) & ~(Media_10TP | Media_SQE)) |
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media_tbl[if_port].media_bits, nic->ioaddr + Wn4_Media);
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/* Switch to the stats window, and clear all stats by reading. */
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/* outw(StatsDisable, nic->ioaddr + EL3_CMD);*/
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EL3WINDOW(6);
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for (i = 0; i < 10; i++)
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inb(nic->ioaddr + i);
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inw(nic->ioaddr + 10);
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inw(nic->ioaddr + 12);
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/* New: On the Vortex we must also clear the BadSSD counter. */
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EL3WINDOW(4);
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inb(nic->ioaddr + 12);
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/* ..and on the Boomerang we enable the extra statistics bits. */
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outw(0x0040, nic->ioaddr + Wn4_NetDiag);
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/* Switch to register set 7 for normal use. */
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EL3WINDOW(7);
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/* Temporarily left in place. If these FIXMEs are printed
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it meand that special logic for that card may need to be added
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see Becker's 3c515.c driver */
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if (vp->full_bus_master_rx) { /* Boomerang bus master. */
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printf("FIXME: Is this if necessary");
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vp->cur_rx = vp->dirty_rx = 0;
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DBG ( " Filling in the Rx ring.\n" );
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for (i = 0; i < RX_RING_SIZE; i++) {
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printf("FIXME: Is this if necessary");
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}
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}
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if (vp->full_bus_master_tx) { /* Boomerang bus master Tx. */
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vp->cur_tx = vp->dirty_tx = 0;
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outb(PKT_BUF_SZ >> 8, nic->ioaddr + TxFreeThreshold); /* Room for a packet. */
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/* Clear the Tx ring. */
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for (i = 0; i < TX_RING_SIZE; i++)
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vp->tx_skbuff[i] = 0;
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outl(0, nic->ioaddr + DownListPtr);
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}
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/* Set receiver mode: presumably accept b-case and phys addr only. */
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outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast | RxProm,
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nic->ioaddr + EL3_CMD);
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outw(RxEnable, nic->ioaddr + EL3_CMD); /* Enable the receiver. */
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outw(TxEnable, nic->ioaddr + EL3_CMD); /* Enable transmitter. */
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/* Allow status bits to be seen. */
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outw(SetStatusEnb | AdapterFailure | IntReq | StatsFull |
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(vp->full_bus_master_tx ? DownComplete : TxAvailable) |
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(vp->full_bus_master_rx ? UpComplete : RxComplete) |
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(vp->bus_master ? DMADone : 0), nic->ioaddr + EL3_CMD);
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/* Ack all pending events, and set active indicator mask. */
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outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
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nic->ioaddr + EL3_CMD);
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outw(SetIntrEnb | IntLatch | TxAvailable | RxComplete | StatsFull
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| (vp->bus_master ? DMADone : 0) | UpComplete | DownComplete,
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nic->ioaddr + EL3_CMD);
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}
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/**************************************************************************
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POLL - Wait for a frame
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***************************************************************************/
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static int t515_poll(struct nic *nic, int retrieve)
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{
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short status, cst;
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register short rx_fifo;
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cst = inw(nic->ioaddr + EL3_STATUS);
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if ((cst & RxComplete) == 0) {
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/* Ack all pending events, and set active indicator mask. */
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outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
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nic->ioaddr + EL3_CMD);
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outw(SetIntrEnb | IntLatch | TxAvailable | RxComplete |
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|
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" );
|