30c3436e4a
and into the bus front ends. For ISA and C-BUS cards, we always need to grab it. For PC Card, already committed, we need to do some sanity checking on the data that's in the ROMs before we decide that they are OK to use. The PC Card code has already been committed and is independent of this code (which also has to work on NE-1000 cards, assuming that those cards still work :-).
298 lines
8.4 KiB
C
298 lines
8.4 KiB
C
/*-
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* Copyright (c) 2005, M. Warner Losh
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* All rights reserved.
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* Copyright (c) 1995, David Greenman
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_ed.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/sockio.h>
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#include <sys/mbuf.h>
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#include <sys/kernel.h>
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#include <sys/socket.h>
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#include <sys/syslog.h>
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <machine/resource.h>
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#include <net/ethernet.h>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include <net/if_dl.h>
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#include <net/if_mib.h>
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#include <net/if_media.h>
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#include <net/bpf.h>
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#include <dev/ed/if_edreg.h>
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#include <dev/ed/if_edvar.h>
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static int ed_probe_gwether(device_t);
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/*
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* Probe and vendor-specific initialization routine for NE1000/2000 boards
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*/
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static int
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ed_probe_Novell_generic(device_t dev, int flags)
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{
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struct ed_softc *sc = device_get_softc(dev);
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u_int memsize;
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int error;
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u_char tmp;
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static char test_pattern[32] = "THIS is A memory TEST pattern";
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char test_buffer[32];
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/* Reset the board */
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if (ED_FLAGS_GETTYPE(flags) == ED_FLAGS_GWETHER) {
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ed_asic_outb(sc, ED_NOVELL_RESET, 0);
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DELAY(200);
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}
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tmp = ed_asic_inb(sc, ED_NOVELL_RESET);
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/*
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* I don't know if this is necessary; probably cruft leftover from
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* Clarkson packet driver code. Doesn't do a thing on the boards I've
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* tested. -DG [note that an outb(0x84, 0) seems to work here, and is
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* non-invasive...but some boards don't seem to reset and I don't have
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* complete documentation on what the 'right' thing to do is...so we
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* do the invasive thing for now. Yuck.]
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*/
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ed_asic_outb(sc, ED_NOVELL_RESET, tmp);
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DELAY(5000);
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/*
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* This is needed because some NE clones apparently don't reset the
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* NIC properly (or the NIC chip doesn't reset fully on power-up) XXX
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* - this makes the probe invasive! ...Done against my better
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* judgement. -DLG
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*/
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ed_nic_outb(sc, ED_P0_CR, ED_CR_RD2 | ED_CR_STP);
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DELAY(5000);
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/* Make sure that we really have an 8390 based board */
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if (!ed_probe_generic8390(sc))
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return (ENXIO);
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sc->vendor = ED_VENDOR_NOVELL;
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sc->mem_shared = 0;
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sc->cr_proto = ED_CR_RD2;
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/*
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* Test the ability to read and write to the NIC memory. This has the
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* side affect of determining if this is an NE1000 or an NE2000.
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*/
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/*
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* This prevents packets from being stored in the NIC memory when the
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* readmem routine turns on the start bit in the CR.
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*/
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ed_nic_outb(sc, ED_P0_RCR, ED_RCR_MON);
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/* Temporarily initialize DCR for byte operations */
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ed_nic_outb(sc, ED_P0_DCR, ED_DCR_FT1 | ED_DCR_LS);
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ed_nic_outb(sc, ED_P0_PSTART, 8192 / ED_PAGE_SIZE);
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ed_nic_outb(sc, ED_P0_PSTOP, 16384 / ED_PAGE_SIZE);
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sc->isa16bit = 0;
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/*
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* Write a test pattern in byte mode. If this fails, then there
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* probably isn't any memory at 8k - which likely means that the board
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* is an NE2000.
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*/
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ed_pio_writemem(sc, test_pattern, 8192, sizeof(test_pattern));
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ed_pio_readmem(sc, 8192, test_buffer, sizeof(test_pattern));
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if (bcmp(test_pattern, test_buffer, sizeof(test_pattern)) == 0) {
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sc->type = ED_TYPE_NE1000;
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sc->type_str = "NE1000";
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} else {
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/* Not an NE1000 - try NE2000 */
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ed_nic_outb(sc, ED_P0_DCR, ED_DCR_WTS | ED_DCR_FT1 | ED_DCR_LS);
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ed_nic_outb(sc, ED_P0_PSTART, 16384 / ED_PAGE_SIZE);
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ed_nic_outb(sc, ED_P0_PSTOP, 32768 / ED_PAGE_SIZE);
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sc->isa16bit = 1;
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/*
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* Write a test pattern in word mode. If this also fails, then
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* we don't know what this board is.
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*/
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ed_pio_writemem(sc, test_pattern, 16384, sizeof(test_pattern));
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ed_pio_readmem(sc, 16384, test_buffer, sizeof(test_pattern));
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if (bcmp(test_pattern, test_buffer, sizeof(test_pattern)) == 0) {
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sc->type = ED_TYPE_NE2000;
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sc->type_str = "NE2000";
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} else {
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return (ENXIO);
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}
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}
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sc->chip_type = ED_CHIP_TYPE_DP8390;
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/* 8k of memory plus an additional 8k if 16bit */
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memsize = 8192 + sc->isa16bit * 8192;
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sc->mem_size = memsize;
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/* NIC memory doesn't start at zero on an NE board */
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/* The start address is tied to the bus width */
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sc->mem_start = (char *) 8192 + sc->isa16bit * 8192;
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sc->mem_end = sc->mem_start + memsize;
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sc->tx_page_start = memsize / ED_PAGE_SIZE;
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if (ED_FLAGS_GETTYPE(flags) == ED_FLAGS_GWETHER) {
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error = ed_probe_gwether(dev);
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if (error)
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return (error);
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}
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/*
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* Use one xmit buffer if < 16k, two buffers otherwise (if not told
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* otherwise).
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*/
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if ((memsize < 16384) || (flags & ED_FLAGS_NO_MULTI_BUFFERING))
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sc->txb_cnt = 1;
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else
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sc->txb_cnt = 2;
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sc->rec_page_start = sc->tx_page_start + sc->txb_cnt * ED_TXBUF_SIZE;
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sc->rec_page_stop = sc->tx_page_start + memsize / ED_PAGE_SIZE;
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sc->mem_ring = sc->mem_start + sc->txb_cnt * ED_PAGE_SIZE * ED_TXBUF_SIZE;
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/* clear any pending interrupts that might have occurred above */
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ed_nic_outb(sc, ED_P0_ISR, 0xff);
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return (0);
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}
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int
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ed_probe_Novell(device_t dev, int port_rid, int flags)
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{
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struct ed_softc *sc = device_get_softc(dev);
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int error;
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error = ed_alloc_port(dev, port_rid, ED_NOVELL_IO_PORTS);
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if (error)
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return (error);
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sc->asic_offset = ED_NOVELL_ASIC_OFFSET;
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sc->nic_offset = ED_NOVELL_NIC_OFFSET;
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return ed_probe_Novell_generic(dev, flags);
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}
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static int
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ed_probe_gwether(device_t dev)
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{
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int x, i, msize = 0;
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long mstart = 0;
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char pbuf0[ED_PAGE_SIZE], pbuf[ED_PAGE_SIZE], tbuf[ED_PAGE_SIZE];
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struct ed_softc *sc = device_get_softc(dev);
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for (i = 0; i < ED_PAGE_SIZE; i++)
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pbuf0[i] = 0;
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/* Clear all the memory. */
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for (x = 1; x < 256; x++)
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ed_pio_writemem(sc, pbuf0, x * 256, ED_PAGE_SIZE);
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/* Search for the start of RAM. */
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for (x = 1; x < 256; x++) {
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ed_pio_readmem(sc, x * 256, tbuf, ED_PAGE_SIZE);
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if (bcmp(pbuf0, tbuf, ED_PAGE_SIZE) == 0) {
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for (i = 0; i < ED_PAGE_SIZE; i++)
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pbuf[i] = 255 - x;
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ed_pio_writemem(sc, pbuf, x * 256, ED_PAGE_SIZE);
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ed_pio_readmem(sc, x * 256, tbuf, ED_PAGE_SIZE);
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if (bcmp(pbuf, tbuf, ED_PAGE_SIZE) == 0) {
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mstart = x * ED_PAGE_SIZE;
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msize = ED_PAGE_SIZE;
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break;
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}
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}
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}
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if (mstart == 0) {
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device_printf(dev, "Cannot find start of RAM.\n");
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return (ENXIO);
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}
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/* Probe the size of RAM. */
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for (x = (mstart / ED_PAGE_SIZE) + 1; x < 256; x++) {
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ed_pio_readmem(sc, x * 256, tbuf, ED_PAGE_SIZE);
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if (bcmp(pbuf0, tbuf, ED_PAGE_SIZE) == 0) {
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for (i = 0; i < ED_PAGE_SIZE; i++)
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pbuf[i] = 255 - x;
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ed_pio_writemem(sc, pbuf, x * 256, ED_PAGE_SIZE);
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ed_pio_readmem(sc, x * 256, tbuf, ED_PAGE_SIZE);
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if (bcmp(pbuf, tbuf, ED_PAGE_SIZE) == 0)
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msize += ED_PAGE_SIZE;
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else {
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break;
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}
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} else {
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break;
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}
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}
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if (msize == 0) {
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device_printf(dev,
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"Cannot find any RAM, start : %ld, x = %d.\n", mstart, x);
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return (ENXIO);
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}
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device_printf(dev, "RAM start at %ld, size : %d.\n", mstart, msize);
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sc->mem_size = msize;
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sc->mem_start = (caddr_t)(uintptr_t) mstart;
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sc->mem_end = (caddr_t)(uintptr_t) (msize + mstart);
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sc->tx_page_start = mstart / ED_PAGE_SIZE;
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return 0;
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}
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void
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ed_Novell_read_mac(struct ed_softc *sc)
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{
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int n;
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uint8_t romdata[16];
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/*
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* Pull the MAC address out of the roms that are on the isa
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* version of these cards.
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*/
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ed_pio_readmem(sc, 0, romdata, 16);
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for (n = 0; n < ETHER_ADDR_LEN; n++)
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sc->arpcom.ac_enaddr[n] = romdata[n * (sc->isa16bit + 1)];
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}
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