/* $OpenBSD: if_le_isa.c,v 1.19 2007/06/17 21:20:47 jasper Exp $ */ /* $NetBSD: if_le_isa.c,v 1.2 1996/05/12 23:52:56 mycroft Exp $ */ /*- * Copyright (c) 1995 Charles M. Hannum. All rights reserved. * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Ralph Campbell and Rick Macklem. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)if_le.c 8.2 (Berkeley) 11/16/93 */ #include "bpfilter.h" #include "isadma.h" #include <sys/param.h> #include <sys/systm.h> #include <sys/mbuf.h> #include <sys/syslog.h> #include <sys/socket.h> #include <sys/device.h> #include <net/if.h> #include <net/if_media.h> #ifdef INET #include <netinet/in.h> #include <netinet/if_ether.h> #endif #include <machine/cpu.h> #include <machine/intr.h> #include <dev/isa/isareg.h> #include <dev/isa/isavar.h> #include <dev/isa/isadmavar.h> #include <dev/ic/am7990reg.h> #include <dev/ic/am7990var.h> #include <dev/isa/if_levar.h> static char *card_type[] = { "unknown", "BICC Isolan", "NE2100", "DEPCA", "PCnet-ISA" }; int le_isa_probe(struct device *, void *, void *); void le_isa_attach(struct device *, struct device *, void *); struct cfattach le_isa_ca = { sizeof(struct le_softc), le_isa_probe, le_isa_attach }; int depca_isa_probe(struct le_softc *, struct isa_attach_args *); int ne2100_isa_probe(struct le_softc *, struct isa_attach_args *); int bicc_isa_probe(struct le_softc *, struct isa_attach_args *); int lance_isa_probe(struct am7990_softc *); int le_isa_probe(struct device *parent, void *match, void *aux) { struct le_softc *lesc = match; struct isa_attach_args *ia = aux; u_int8_t bogusether[ETHER_ADDR_LEN] = { 255, 255, 255, 255, 255, 255 }; #if NISADMA == 0 if (ia->ia_drq != DRQUNK) { printf("cannot support dma lance devices\n"); return 0; } #endif if (bicc_isa_probe(lesc, ia) == 0 && ne2100_isa_probe(lesc, ia) == 0 && depca_isa_probe(lesc, ia) == 0) return (0); if (bcmp(lesc->sc_am7990.sc_arpcom.ac_enaddr, bogusether, sizeof(bogusether)) == 0) return (0); return (1); } int depca_isa_probe(struct le_softc *lesc, struct isa_attach_args *ia) { struct am7990_softc *sc = &lesc->sc_am7990; bus_space_tag_t iot = lesc->sc_iot; bus_space_handle_t ioh = lesc->sc_ioh; int iosize = 16; int port; #if 0 u_long sum, rom_sum; u_char x; #endif int i; if (bus_space_map(iot, ia->ia_iobase, iosize, 0, &ioh)) return (0); lesc->sc_iot = iot; lesc->sc_ioh = ioh; lesc->sc_rap = DEPCA_RAP; lesc->sc_rdp = DEPCA_RDP; lesc->sc_card = DEPCA; if (lance_isa_probe(sc) == 0) { bus_space_unmap(iot, ioh, iosize); return 0; } bus_space_write_1(iot, ioh, DEPCA_CSR, DEPCA_CSR_DUM); /* * Extract the physical MAC address from the ROM. * * The address PROM is 32 bytes wide, and we access it through * a single I/O port. On each read, it rotates to the next * position. We find the ethernet address by looking for a * particular sequence of bytes (0xff, 0x00, 0x55, 0xaa, 0xff, * 0x00, 0x55, 0xaa), and then reading the next 8 bytes (the * ethernet address and a checksum). * * It appears that the PROM can be at one of two locations, so * we just try both. */ port = DEPCA_ADP; for (i = 0; i < 32; i++) if (bus_space_read_1(iot, ioh, port) == 0xff && bus_space_read_1(iot, ioh, port) == 0x00 && bus_space_read_1(iot, ioh, port) == 0x55 && bus_space_read_1(iot, ioh, port) == 0xaa && bus_space_read_1(iot, ioh, port) == 0xff && bus_space_read_1(iot, ioh, port) == 0x00 && bus_space_read_1(iot, ioh, port) == 0x55 && bus_space_read_1(iot, ioh, port) == 0xaa) goto found; port = DEPCA_ADP + 1; for (i = 0; i < 32; i++) if (bus_space_read_1(iot, ioh, port) == 0xff && bus_space_read_1(iot, ioh, port) == 0x00 && bus_space_read_1(iot, ioh, port) == 0x55 && bus_space_read_1(iot, ioh, port) == 0xaa && bus_space_read_1(iot, ioh, port) == 0xff && bus_space_read_1(iot, ioh, port) == 0x00 && bus_space_read_1(iot, ioh, port) == 0x55 && bus_space_read_1(iot, ioh, port) == 0xaa) goto found; printf("%s: address not found\n", sc->sc_dev.dv_xname); return 0; found: for (i = 0; i < sizeof(sc->sc_arpcom.ac_enaddr); i++) sc->sc_arpcom.ac_enaddr[i] = bus_space_read_1(iot, ioh, port); #if 0 sum = (sc->sc_arpcom.ac_enaddr[0] << 2) + (sc->sc_arpcom.ac_enaddr[1] << 10) + (sc->sc_arpcom.ac_enaddr[2] << 1) + (sc->sc_arpcom.ac_enaddr[3] << 9) + (sc->sc_arpcom.ac_enaddr[4] << 0) + (sc->sc_arpcom.ac_enaddr[5] << 8); sum = (sum & 0xffff) + (sum >> 16); sum = (sum & 0xffff) + (sum >> 16); rom_sum = bus_space_read_1(iot, ioh, port); rom_sum |= bus_space_read_1(iot, ioh, port << 8); if (sum != rom_sum) { printf("%s: checksum mismatch; calculated %04x != read %04x", sc->sc_dev.dv_xname, sum, rom_sum); bus_space_unmap(iot, ioh, iosize); return 0; } #endif bus_space_write_1(iot, ioh, DEPCA_CSR, DEPCA_CSR_NORMAL); ia->ia_iosize = iosize; ia->ia_drq = DRQUNK; bus_space_unmap(iot, ioh, ia->ia_iosize); return 1; } int ne2100_isa_probe(struct le_softc *lesc, struct isa_attach_args *ia) { struct am7990_softc *sc = &lesc->sc_am7990; bus_space_tag_t iot = lesc->sc_iot; bus_space_handle_t ioh = lesc->sc_ioh; int iosize = 24; int i; if (bus_space_map(iot, ia->ia_iobase, iosize, 0, &ioh)) return (0); lesc->sc_iot = iot; lesc->sc_ioh = ioh; lesc->sc_rap = NE2100_RAP; lesc->sc_rdp = NE2100_RDP; lesc->sc_card = NE2100; if (lance_isa_probe(sc) == 0) { bus_space_unmap(iot, ioh, iosize); return 0; } /* * Extract the physical MAC address from the ROM. */ for (i = 0; i < sizeof(sc->sc_arpcom.ac_enaddr); i++) sc->sc_arpcom.ac_enaddr[i] = bus_space_read_1(iot, ioh, i); ia->ia_iosize = iosize; bus_space_unmap(iot, ioh, ia->ia_iosize); return 1; } int bicc_isa_probe(struct le_softc *lesc, struct isa_attach_args *ia) { struct am7990_softc *sc = &lesc->sc_am7990; bus_space_handle_t ioh; bus_space_tag_t iot = ia->ia_iot; int iosize = 16; int i; if (bus_space_map(iot, ia->ia_iobase, iosize, 0, &ioh)) return (0); lesc->sc_iot = iot; lesc->sc_ioh = ioh; lesc->sc_rap = BICC_RAP; lesc->sc_rdp = BICC_RDP; lesc->sc_card = BICC; if (lance_isa_probe(sc) == 0) { bus_space_unmap(iot, ioh, iosize); return 0; } /* * Extract the physical MAC address from the ROM. */ for (i = 0; i < sizeof(sc->sc_arpcom.ac_enaddr); i++) sc->sc_arpcom.ac_enaddr[i] = bus_space_read_1(iot, ioh, i * 2); ia->ia_iosize = iosize; bus_space_unmap(iot, ioh, ia->ia_iosize); return 1; } /* * Determine which chip is present on the card. */ int lance_isa_probe(struct am7990_softc *sc) { /* Stop the LANCE chip and put it in a known state. */ le_isa_wrcsr(sc, LE_CSR0, LE_C0_STOP); delay(100); if (le_isa_rdcsr(sc, LE_CSR0) != LE_C0_STOP) return 0; le_isa_wrcsr(sc, LE_CSR3, sc->sc_conf3); return 1; } void le_isa_attach(struct device *parent, struct device *self, void *aux) { struct le_softc *lesc = (void *)self; struct am7990_softc *sc = &lesc->sc_am7990; struct isa_attach_args *ia = aux; bus_space_tag_t iot = ia->ia_iot; bus_space_handle_t ioh; if (bus_space_map(iot, ia->ia_iobase, ia->ia_iosize, 0, &ioh)) panic("%s: could not map I/O-ports", sc->sc_dev.dv_xname); lesc->sc_iot = iot; lesc->sc_ioh = ioh; printf(": %s Ethernet\n", card_type[lesc->sc_card]); if (lesc->sc_card == DEPCA) { u_char *mem, val; int i; mem = sc->sc_mem = ISA_HOLE_VADDR(ia->ia_maddr); val = 0xff; for (;;) { for (i = 0; i < ia->ia_msize; i++) mem[i] = val; for (i = 0; i < ia->ia_msize; i++) if (mem[i] != val) { printf("%s: failed to clear memory\n", sc->sc_dev.dv_xname); return; } if (val == 0x00) break; val -= 0x55; } sc->sc_conf3 = LE_C3_ACON; sc->sc_addr = 0; sc->sc_memsize = ia->ia_msize; } else { sc->sc_mem = malloc(16384, M_DEVBUF, M_NOWAIT); if (sc->sc_mem == 0) { printf("%s: couldn't allocate memory for card\n", sc->sc_dev.dv_xname); return; } sc->sc_conf3 = 0; sc->sc_addr = kvtop(sc->sc_mem); sc->sc_memsize = 16384; } sc->sc_copytodesc = am7990_copytobuf_contig; sc->sc_copyfromdesc = am7990_copyfrombuf_contig; sc->sc_copytobuf = am7990_copytobuf_contig; sc->sc_copyfrombuf = am7990_copyfrombuf_contig; sc->sc_zerobuf = am7990_zerobuf_contig; sc->sc_rdcsr = le_isa_rdcsr; sc->sc_wrcsr = le_isa_wrcsr; sc->sc_hwreset = NULL; sc->sc_hwinit = NULL; printf("%s", sc->sc_dev.dv_xname); am7990_config(sc); #if NISADMA > 0 if (ia->ia_drq != DRQUNK) isadma_cascade(ia->ia_drq); #endif lesc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, IPL_NET, le_isa_intredge, sc, sc->sc_dev.dv_xname); }