157 lines
4.1 KiB
C
157 lines
4.1 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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#ifdef ED_SIC
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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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/*
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* Probe and vendor-specific initialization routine for SIC boards
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*/
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int
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ed_probe_SIC(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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int i;
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u_int memsize;
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u_long pmem;
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u_char sum;
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error = ed_alloc_port(dev, 0, ED_SIC_IO_PORTS);
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if (error)
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return (error);
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sc->asic_offset = ED_SIC_ASIC_OFFSET;
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sc->nic_offset = ED_SIC_NIC_OFFSET;
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memsize = 16384;
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/* XXX Needs to allow different msize */
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error = ed_alloc_memory(dev, 0, memsize);
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if (error)
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return (error);
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sc->mem_start = (caddr_t) rman_get_virtual(sc->mem_res);
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sc->mem_size = memsize;
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pmem = rman_get_start(sc->mem_res);
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error = ed_isa_mem_ok(dev, pmem, memsize);
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if (error)
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return (error);
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/* Reset card to force it into a known state. */
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ed_asic_outb(sc, 0, 0x00);
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DELAY(100);
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/*
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* Here we check the card ROM, if the checksum passes, and the
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* type code and ethernet address check out, then we know we have
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* an SIC card.
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*/
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ed_asic_outb(sc, 0, 0x81);
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DELAY(100);
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sum = sc->mem_start[6];
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for (i = 0; i < ETHER_ADDR_LEN; i++)
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sum ^= (sc->arpcom.ac_enaddr[i] = sc->mem_start[i]);
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#ifdef ED_DEBUG
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device_printf(dev, "ed_probe_sic: got address %6D\n",
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sc->arpcom.ac_enaddr, ":");
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#endif
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if (sum != 0)
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return (ENXIO);
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if ((sc->arpcom.ac_enaddr[0] | sc->arpcom.ac_enaddr[1] |
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sc->arpcom.ac_enaddr[2]) == 0)
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return (ENXIO);
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sc->vendor = ED_VENDOR_SIC;
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sc->type_str = "SIC";
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sc->isa16bit = 0;
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sc->cr_proto = 0;
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/*
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* SIC RAM page 0x0000-0x3fff(or 0x7fff)
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*/
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ed_asic_outb(sc, 0, 0x80);
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DELAY(100);
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error = ed_clear_memory(dev);
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if (error)
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return (error);
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sc->mem_shared = 1;
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sc->mem_end = sc->mem_start + sc->mem_size;
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/*
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* allocate one xmit buffer if < 16k, two buffers otherwise
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*/
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if ((sc->mem_size < 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->tx_page_start = 0;
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sc->rec_page_start = sc->tx_page_start + ED_TXBUF_SIZE * sc->txb_cnt;
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sc->rec_page_stop = sc->tx_page_start + sc->mem_size / 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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return (0);
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}
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#endif /* ED_SIC */
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