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Annotation of src/sys/dev/isa/if_ef.c, Revision 1.8.2.3

1.8.2.3 ! nathanw     1: /*     $NetBSD: if_ef.c,v 1.8.2.2 2001/11/14 19:14:47 nathanw Exp $    */
1.1       pk          2:
                      3: /*-
                      4:  * Copyright (c) 1998 The NetBSD Foundation, Inc.
                      5:  * All rights reserved.
                      6:  *
                      7:  * This code is derived from software contributed to The NetBSD Foundation
                      8:  * by Rafal K. Boni.
                      9:  *
                     10:  * Redistribution and use in source and binary forms, with or without
                     11:  * modification, are permitted provided that the following conditions
                     12:  * are met:
                     13:  * 1. Redistributions of source code must retain the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer.
                     15:  * 2. Redistributions in binary form must reproduce the above copyright
                     16:  *    notice, this list of conditions and the following disclaimer in the
                     17:  *    documentation and/or other materials provided with the distribution.
                     18:  * 3. All advertising materials mentioning features or use of this software
                     19:  *    must display the following acknowledgement:
                     20:  *     This product includes software developed by the NetBSD
                     21:  *     Foundation, Inc. and its contributors.
                     22:  * 4. Neither the name of The NetBSD Foundation nor the names of its
                     23:  *    contributors may be used to endorse or promote products derived
                     24:  *    from this software without specific prior written permission.
                     25:  *
                     26:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
                     27:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
                     28:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
                     29:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
                     30:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
                     31:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
                     32:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
                     33:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
                     34:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
                     35:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
                     36:  * POSSIBILITY OF SUCH DAMAGE.
                     37:  */
1.8.2.2   nathanw    38:
                     39: #include <sys/cdefs.h>
1.8.2.3 ! nathanw    40: __KERNEL_RCSID(0, "$NetBSD: if_ef.c,v 1.8.2.2 2001/11/14 19:14:47 nathanw Exp $");
1.1       pk         41:
                     42: #include <sys/param.h>
                     43: #include <sys/systm.h>
                     44: #include <sys/mbuf.h>
                     45: #include <sys/errno.h>
                     46: #include <sys/device.h>
                     47: #include <sys/protosw.h>
                     48: #include <sys/socket.h>
                     49:
                     50: #include <net/if.h>
                     51: #include <net/if_dl.h>
                     52: #include <net/if_types.h>
                     53: #include <net/if_media.h>
                     54: #include <net/if_ether.h>
                     55:
                     56: #include <machine/cpu.h>
                     57: #include <machine/bus.h>
                     58: #include <machine/intr.h>
                     59:
                     60: #include <dev/isa/isareg.h>
                     61: #include <dev/isa/isavar.h>
                     62:
                     63: #include <dev/ic/i82586reg.h>
                     64: #include <dev/ic/i82586var.h>
                     65: #include <dev/isa/if_efreg.h>
                     66: #include <dev/isa/elink.h>
                     67:
                     68: #ifdef EF_DEBUG
                     69: #define DPRINTF(x)     printf x
                     70: #else
1.2       pk         71: #define DPRINTF(x)
1.1       pk         72: #endif
                     73:
                     74: struct ef_softc {
                     75:        struct ie_softc sc_ie;
                     76:
                     77:        bus_space_tag_t sc_regt;        /* space tag for registers */
                     78:        bus_space_handle_t sc_regh;     /* space handle for registers */
                     79:
                     80:        void* sc_ih;                    /* interrupt handle */
                     81:
                     82:        u_int8_t card_rev;              /* hardware revision */
                     83:        u_int8_t card_type;             /* card model -- AUI/BNC or TP */
                     84: };
                     85:
1.2       pk         86: int ef_media[] = {
1.1       pk         87:        IFM_ETHER | IFM_10_5,
                     88:        IFM_ETHER | IFM_10_2,
                     89: };
                     90: #define NEF_MEDIA       (sizeof(ef_media) / sizeof(ef_media[0]))
                     91:
                     92: int eftp_media[] = {
                     93:        IFM_ETHER | IFM_10_T,
                     94: };
                     95: #define NEFTP_MEDIA       (sizeof(eftp_media) / sizeof(eftp_media[0]))
                     96:
                     97: /* Routines required by the MI i82586 driver API */
                     98: static void    ef_reset __P((struct ie_softc *, int));
                     99: static void    ef_hwinit __P((struct ie_softc *));
1.8.2.1   nathanw   100: static void    ef_atten __P((struct ie_softc *, int));
1.1       pk        101: static int     ef_intrhook __P((struct ie_softc *, int));
                    102:
                    103: static void    ef_copyin __P((struct ie_softc *, void *, int, size_t));
                    104: static void    ef_copyout __P((struct ie_softc *, const void *, int, size_t));
                    105:
                    106: static u_int16_t ef_read_16 __P((struct ie_softc *, int));
                    107: static void    ef_write_16 __P((struct ie_softc *, int, u_int16_t));
                    108: static void    ef_write_24 __P((struct ie_softc *, int, int));
                    109:
                    110: static void    ef_mediastatus __P((struct ie_softc *, struct ifmediareq *));
                    111:
                    112: /* Local routines */
                    113: static int     ef_port_check __P((bus_space_tag_t, bus_space_handle_t));
                    114:
                    115: int ef_match __P((struct device *, struct cfdata *, void *));
                    116: void ef_attach __P((struct device *, struct device *, void *));
                    117:
                    118: /*
                    119:  * This keeps track of which ISAs have been through an ie probe sequence.
                    120:  * A simple static variable isn't enough, since it's conceivable that
                    121:  * a system might have more than one ISA bus.
                    122:  *
                    123:  * The "isa_bus" member is a pointer to the parent ISA bus device struct
1.2       pk        124:  * which will unique per ISA bus.
1.1       pk        125:  */
                    126:
                    127: #define MAXCARDS_PER_ISABUS     8       /* if you have more than 8, you lose */
                    128:
                    129: struct ef_isabus {
1.2       pk        130:        LIST_ENTRY(ef_isabus) isa_link;
                    131:        struct device *isa_bus;
1.1       pk        132:
1.2       pk        133:        int bus_state;
1.1       pk        134:
1.2       pk        135:        struct card {
                    136:                bus_addr_t iobase;
                    137:                bus_addr_t maddr;
                    138:                bus_size_t msize;
                    139:                int irq;
                    140:                int available;
                    141:        } isa_cards[MAXCARDS_PER_ISABUS];
1.1       pk        142: };
                    143:
                    144: static LIST_HEAD(, ef_isabus) ef_isa_buses;
                    145: static int ef_isa_buses_inited;
                    146:
                    147: static void
                    148: ef_card_add(
                    149:     struct ef_isabus *bus,
                    150:     bus_addr_t iobase,
                    151:     bus_addr_t maddr,
                    152:     bus_size_t msize,
                    153:     int irq)
                    154: {
1.2       pk        155:        int idx;
1.1       pk        156:
1.2       pk        157:        DPRINTF(("Adding 3c507 at 0x%x, IRQ %d, Mem 0x%lx/%ld\n",
                    158:                 (u_int) iobase, irq, (u_long) maddr, msize));
1.1       pk        159:
1.2       pk        160:        for (idx = 0; idx < MAXCARDS_PER_ISABUS; idx++) {
                    161:                if (bus->isa_cards[idx].available == 0) {
                    162:                        bus->isa_cards[idx].iobase = iobase;
                    163:                        bus->isa_cards[idx].maddr = maddr;
                    164:                        bus->isa_cards[idx].msize = msize;
                    165:                        bus->isa_cards[idx].irq = irq;
                    166:                        bus->isa_cards[idx].available = 1;
                    167:                        break;
                    168:                }
                    169:        }
1.1       pk        170: }
                    171:
                    172: /*
                    173:  * 3C507 support routines
                    174:  */
                    175: static void
                    176: ef_reset(sc, why)
                    177:        struct ie_softc *sc;
                    178:        int why;
                    179: {
1.2       pk        180:        struct ef_softc* esc = (struct ef_softc *) sc;
1.1       pk        181:
1.2       pk        182:        switch (why) {
                    183:        case CHIP_PROBE:
                    184:                /* reset to chip to see if it responds */
                    185:                bus_space_write_1(esc->sc_regt, esc->sc_regh,
                    186:                                  EF_CTRL, EF_CTRL_RESET);
                    187:                DELAY(100);
                    188:                bus_space_write_1(esc->sc_regt, esc->sc_regh,
                    189:                                  EF_CTRL, EF_CTRL_NORMAL);
                    190:                DELAY(100);
                    191:                break;
                    192:
                    193:        case CARD_RESET:
                    194:                /*
                    195:                 * this takes around 10sec, and we can get
                    196:                 * by quite well w/out it...
                    197:                 */
                    198:                break;
                    199:        }
1.1       pk        200: }
                    201:
                    202: static void
1.8.2.1   nathanw   203: ef_atten(sc, why)
1.1       pk        204:        struct ie_softc *sc;
1.8.2.1   nathanw   205:        int why;
1.1       pk        206: {
1.2       pk        207:        struct ef_softc* esc = (struct ef_softc *) sc;
                    208:        bus_space_write_1(esc->sc_regt, esc->sc_regh, EF_ATTN, 1);
1.1       pk        209: }
                    210:
                    211: static void
                    212: ef_hwinit(sc)
                    213:        struct ie_softc *sc;
                    214: {
1.2       pk        215:        struct ef_softc* esc = (struct ef_softc *) sc;
                    216:        bus_space_write_1(esc->sc_regt, esc->sc_regh, EF_ICTRL, 1);
1.1       pk        217: }
                    218:
                    219: static int
                    220: ef_intrhook(sc, where)
                    221:        struct ie_softc *sc;
                    222:        int where;
                    223: {
1.2       pk        224:        unsigned char cr;
                    225:        struct ef_softc* esc = (struct ef_softc *) sc;
1.1       pk        226:
1.2       pk        227:        switch (where) {
                    228:        case INTR_ENTER:
                    229:                /* entering ISR: disable, ack card interrupts */
                    230:                cr = bus_space_read_1(esc->sc_regt, esc->sc_regh, EF_CTRL);
                    231:                bus_space_write_1(esc->sc_regt, esc->sc_regh, EF_CTRL,
                    232:                                  cr & ~EF_CTRL_IEN);
                    233:                bus_space_write_1(esc->sc_regt, esc->sc_regh, EF_ICTRL, 1);
                    234:                break;
                    235:
                    236:        case INTR_EXIT:
                    237:                /* exiting ISR: re-enable card interrupts */
                    238:                cr = bus_space_read_1(esc->sc_regt, esc->sc_regh, EF_CTRL);
                    239:                bus_space_write_1(esc->sc_regt, esc->sc_regh, EF_CTRL,
                    240:                                  cr | EF_CTRL_IEN);
                    241:                break;
                    242:
                    243:        case INTR_LOOP:
                    244:                /* looping in ISR: ack new interrupts */
                    245:                bus_space_write_1(esc->sc_regt, esc->sc_regh, EF_ICTRL, 1);
                    246:                break;
1.1       pk        247:     }
                    248:
                    249:     return 1;
                    250: }
                    251:
1.2       pk        252: static u_int16_t
1.1       pk        253: ef_read_16 (sc, offset)
                    254:        struct ie_softc *sc;
                    255:        int offset;
                    256: {
                    257:        bus_space_barrier(sc->bt, sc->bh, offset, 2, BUS_SPACE_BARRIER_READ);
                    258:        return bus_space_read_2(sc->bt, sc->bh, offset);
                    259: }
                    260:
1.2       pk        261: static void
1.1       pk        262: ef_copyin (sc, dst, offset, size)
                    263:        struct ie_softc *sc;
                    264:        void *dst;
                    265:        int offset;
                    266:        size_t size;
                    267: {
1.2       pk        268:        int dribble;
                    269:        u_int8_t* bptr = dst;
1.1       pk        270:
1.2       pk        271:        bus_space_barrier(sc->bt, sc->bh, offset, size,
                    272:                          BUS_SPACE_BARRIER_READ);
1.1       pk        273:
1.2       pk        274:        if (offset % 2) {
                    275:                *bptr = bus_space_read_1(sc->bt, sc->bh, offset);
                    276:                offset++; bptr++; size--;
                    277:        }
1.1       pk        278:
1.2       pk        279:        dribble = size % 2;
                    280:        bus_space_read_region_2(sc->bt, sc->bh, offset, (u_int16_t *) bptr,
                    281:                                size >> 1);
                    282:
                    283:        if (dribble) {
                    284:                bptr += size - 1;
                    285:                offset += size - 1;
                    286:                *bptr = bus_space_read_1(sc->bt, sc->bh, offset);
                    287:        }
1.1       pk        288: }
                    289:
1.2       pk        290: static void
1.1       pk        291: ef_copyout (sc, src, offset, size)
                    292:        struct ie_softc *sc;
                    293:        const void *src;
                    294:        int offset;
                    295:        size_t size;
                    296: {
1.2       pk        297:        int dribble;
                    298:        int osize = size;
                    299:        int ooffset = offset;
                    300:        const u_int8_t* bptr = src;
                    301:
                    302:        if (offset % 2) {
                    303:                bus_space_write_1(sc->bt, sc->bh, offset, *bptr);
                    304:                offset++; bptr++; size--;
                    305:        }
1.1       pk        306:
1.2       pk        307:        dribble = size % 2;
                    308:        bus_space_write_region_2(sc->bt, sc->bh, offset, (u_int16_t *)bptr,
                    309:                                 size >> 1);
                    310:        if (dribble) {
                    311:                bptr += size - 1;
                    312:                offset += size - 1;
                    313:                bus_space_write_1(sc->bt, sc->bh, offset, *bptr);
                    314:        }
1.1       pk        315:
1.2       pk        316:        bus_space_barrier(sc->bt, sc->bh, ooffset, osize,
                    317:                          BUS_SPACE_BARRIER_WRITE);
1.1       pk        318: }
                    319:
                    320: static void
                    321: ef_write_16 (sc, offset, value)
                    322:        struct ie_softc *sc;
                    323:        int offset;
                    324:        u_int16_t value;
                    325: {
                    326:        bus_space_write_2(sc->bt, sc->bh, offset, value);
                    327:        bus_space_barrier(sc->bt, sc->bh, offset, 2, BUS_SPACE_BARRIER_WRITE);
                    328: }
                    329:
                    330: static void
                    331: ef_write_24 (sc, offset, addr)
                    332:        struct ie_softc *sc;
                    333:        int offset, addr;
                    334: {
1.2       pk        335:        bus_space_write_4(sc->bt, sc->bh, offset, addr +
                    336:                          (u_long) sc->sc_maddr - (u_long) sc->sc_iobase);
1.1       pk        337:        bus_space_barrier(sc->bt, sc->bh, offset, 4, BUS_SPACE_BARRIER_WRITE);
                    338: }
                    339:
                    340: static void
                    341: ef_mediastatus(sc, ifmr)
1.2       pk        342:         struct ie_softc *sc;
                    343:         struct ifmediareq *ifmr;
1.1       pk        344: {
                    345:         struct ifmedia *ifm = &sc->sc_media;
                    346:
                    347:         /*
1.2       pk        348:          * The currently selected media is always the active media.
1.1       pk        349:          */
                    350:         ifmr->ifm_active = ifm->ifm_cur->ifm_media;
                    351: }
                    352:
                    353: int
                    354: ef_match(parent, cf, aux)
                    355:        struct device *parent;
                    356:        struct cfdata *cf;
                    357:        void *aux;
                    358: {
1.2       pk        359:        struct isa_attach_args * const ia = aux;
                    360:
                    361:        int idx;
                    362:        struct ef_isabus *bus;
                    363:
                    364:        bus_space_handle_t ioh;
                    365:        bus_space_tag_t iot = ia->ia_iot;
1.1       pk        366:
1.2       pk        367:        if (ef_isa_buses_inited == 0) {
                    368:                LIST_INIT(&ef_isa_buses);
                    369:                ef_isa_buses_inited = 1;
                    370:        }
                    371:
                    372:        /*
                    373:        * Probe this bus if we haven't done so already.
                    374:        */
                    375:        for (bus = ef_isa_buses.lh_first; bus != NULL;
                    376:             bus = bus->isa_link.le_next) {
                    377:                if (bus->isa_bus == parent)
                    378:                        break;
                    379:        }
1.1       pk        380:
1.2       pk        381:        if (bus == NULL) {
                    382:                bus_addr_t iobase;
1.1       pk        383:
1.2       pk        384:                /*
                    385:                 * Mark this bus so we don't probe it again.
                    386:                 */
                    387:                bus = (struct ef_isabus *)
                    388:                        malloc(sizeof(struct ef_isabus), M_DEVBUF, M_NOWAIT);
                    389:                if (bus == NULL)
                    390:                    panic("ef_isa_probe: can't allocate state storage for %s",
                    391:                          parent->dv_xname);
                    392:
                    393:                bus->bus_state = 0;             /* nothing done yet */
                    394:                bus->isa_bus = parent;
1.1       pk        395:
1.2       pk        396:                LIST_INSERT_HEAD(&ef_isa_buses, bus, isa_link);
1.1       pk        397:
1.2       pk        398:                if (bus_space_map(iot, ELINK_ID_PORT, 1, 0, &ioh)) {
                    399:                        DPRINTF(("3c507 probe: can't map Etherlink ID port\n"));
                    400:                        return 0;
                    401:                }
1.1       pk        402:
1.2       pk        403:                /*
                    404:                 * Reset and put card in CONFIG state without
                    405:                 * changing address.
                    406:                 */
1.3       pk        407:                elink_reset(iot, ioh, parent->dv_unit);
1.2       pk        408:                elink_idseq(iot, ioh, ELINK_507_POLY);
                    409:                elink_idseq(iot, ioh, ELINK_507_POLY);
                    410:                bus_space_write_1(iot, ioh, 0, 0xff);
                    411:
                    412:                /* Unmap the ID port */
                    413:                bus_space_unmap(iot, ioh, 1);
                    414:
                    415:                bus->bus_state++;       /* cards now in CONFIG state */
                    416:
                    417:                for (iobase = EF_IOBASE_LOW; iobase <= EF_IOBASE_HIGH;
                    418:                     iobase += EF_IOSIZE) {
                    419:                        /*
                    420:                         * Map the 507's port-space for the probe sequence.
                    421:                         */
                    422:                        if (bus_space_map(iot, iobase, EF_IOSIZE,
                    423:                                          0, &ioh) != 0)
                    424:                                continue;
                    425:
                    426:                        /* Now look for the 3Com magic bytes */
                    427:
                    428:                        if (ef_port_check(iot, ioh)) {
                    429:                                int irq;
                    430:                                u_int8_t v;
                    431:                                bus_addr_t maddr;
                    432:                                bus_addr_t msize;
                    433:                                bus_space_handle_t memh;
                    434:
                    435:                                irq = bus_space_read_1(iot, ioh, EF_IRQ) &
                    436:                                        EF_IRQ_MASK;
                    437:
                    438:                                v = bus_space_read_1(iot, ioh, EF_MADDR);
                    439:                                maddr = EF_MADDR_BASE +
                    440:                                      ((v & EF_MADDR_MASK) << EF_MADDR_SHIFT);
                    441:                                msize = ((v & EF_MSIZE_MASK) + 1) *
                    442:                                        EF_MSIZE_STEP;
                    443:
                    444:                                if (bus_space_map(ia->ia_memt, maddr,
                    445:                                                  msize, 0, &memh) == 0) {
                    446:                                            ef_card_add(bus, iobase, maddr,
                    447:                                                        msize, irq);
                    448:                                            bus_space_unmap(ia->ia_memt,
                    449:                                                            memh, msize);
                    450:                                }
                    451:                        }
                    452:                        bus_space_unmap(iot, ioh, EF_IOSIZE);
                    453:                }
1.1       pk        454:        }
                    455:
1.2       pk        456:        for (idx = 0; idx < MAXCARDS_PER_ISABUS; idx++) {
                    457:                if (bus->isa_cards[idx].available != 1)
                    458:                        continue;
                    459:
                    460:                if (ia->ia_iobase != IOBASEUNK &&
                    461:                    ia->ia_iobase != bus->isa_cards[idx].iobase)
                    462:                        continue;
                    463:
                    464:                if (ia->ia_maddr != MADDRUNK &&
                    465:                    ia->ia_maddr != bus->isa_cards[idx].maddr)
                    466:                        continue;
                    467:
                    468:                if (ia->ia_irq != IRQUNK &&
                    469:                    ia->ia_irq != bus->isa_cards[idx].irq)
                    470:                        continue;
                    471:
                    472:                break;
                    473:        }
1.1       pk        474:
1.2       pk        475:        if (idx == MAXCARDS_PER_ISABUS)
                    476:                return (0);
1.1       pk        477:
1.2       pk        478:        bus->isa_cards[idx].available++;
                    479:        ia->ia_iobase = bus->isa_cards[idx].iobase;
                    480:        ia->ia_irq    = bus->isa_cards[idx].irq;
                    481:        ia->ia_iosize = EF_IOSIZE;
                    482:        ia->ia_maddr  = bus->isa_cards[idx].maddr;
                    483:        ia->ia_msize  = bus->isa_cards[idx].msize;
                    484:        return (1);
1.1       pk        485: }
                    486:
                    487: void
                    488: ef_attach(parent, self, aux)
                    489:        struct device *parent;
                    490:        struct device *self;
                    491:        void   *aux;
                    492: {
1.2       pk        493:        struct ef_softc *esc = (void *)self;
                    494:        struct ie_softc *sc = &esc->sc_ie;
                    495:        struct isa_attach_args *ia = aux;
                    496:        bus_space_tag_t iot = ia->ia_iot;
                    497:
                    498:        int i;
                    499:        char version[20];
                    500:        struct ef_isabus *bus;
                    501:        u_int8_t partno[EF_TYPE_LEN];
                    502:        bus_space_handle_t ioh, memh;
                    503:        u_int8_t ethaddr[ETHER_ADDR_LEN];
                    504:
                    505:        sc->hwinit = ef_hwinit;
                    506:        sc->hwreset = ef_reset;
                    507:        sc->chan_attn = ef_atten;
                    508:        sc->intrhook = ef_intrhook;
1.8       bjh21     509:
                    510:        sc->ie_bus_barrier = NULL;
1.2       pk        511:
                    512:        sc->memcopyin = ef_copyin;
                    513:        sc->memcopyout = ef_copyout;
                    514:        sc->ie_bus_read16 = ef_read_16;
                    515:        sc->ie_bus_write16 = ef_write_16;
                    516:        sc->ie_bus_write24 = ef_write_24;
                    517:
                    518:        sc->sc_msize = 0;
                    519:
                    520:        /*
                    521:         * NOP chains don't give any advantage on this card, in fact they
                    522:         * seem to slow it down some.  As the doctor says, "if it hurts,
                    523:         * don't do it".
                    524:         */
                    525:        sc->do_xmitnopchain = 0;
1.1       pk        526:
1.2       pk        527:        sc->sc_mediachange = NULL;
                    528:        sc->sc_mediastatus = ef_mediastatus;
1.1       pk        529:
1.2       pk        530:        /* Find the cards parent bus */
                    531:        for (bus = ef_isa_buses.lh_first; bus != NULL;
                    532:             bus = bus->isa_link.le_next) {
1.1       pk        533:
1.2       pk        534:                if (bus->isa_bus == parent)
                    535:                        break;
1.1       pk        536:        }
                    537:
1.2       pk        538:        if (bus == NULL)
                    539:                panic("%s: Can't find parent bus!", sc->sc_dev.dv_xname);
                    540:
                    541:
                    542:        /* If the bus hasn't been transitioned to the RUN state, do so now */
                    543:        if (bus->bus_state == 1) {
                    544:                if (bus_space_map(iot, ELINK_ID_PORT, 1, 0, &ioh) != 0) {
                    545:                        DPRINTF(("\n%s: Can't map Elink ID port!\n",
                    546:                                sc->sc_dev.dv_xname));
                    547:                        return;
                    548:                }
                    549:
                    550:                bus_space_write_1(ia->ia_iot, ioh, 0, 0x00);
                    551:                elink_idseq(ia->ia_iot, ioh, ELINK_507_POLY);
                    552:                bus_space_write_1(ia->ia_iot, ioh, 0, 0x00);
                    553:                bus_space_unmap(ia->ia_iot, ioh, 1);
1.1       pk        554:
1.2       pk        555:                bus->bus_state++;
                    556:        }
                    557:
                    558:        /* Map i/o space. */
                    559:        if (bus_space_map(ia->ia_iot, ia->ia_iobase,
                    560:                          ia->ia_iosize, 0, &ioh) != 0) {
                    561:
                    562:                DPRINTF(("\n%s: can't map i/o space 0x%x-0x%x\n",
                    563:                          sc->sc_dev.dv_xname, ia->ia_iobase,
                    564:                          ia->ia_iobase + ia->ia_iosize - 1));
                    565:                return;
                    566:        }
1.1       pk        567:
1.2       pk        568:        esc->sc_regt = ia->ia_iot;
                    569:        esc->sc_regh = ioh;
1.1       pk        570:
1.2       pk        571:        if (bus_space_map(ia->ia_memt, ia->ia_maddr,
                    572:                          ia->ia_msize, 0, &memh) != 0) {
1.1       pk        573:
1.2       pk        574:                DPRINTF(("\n%s: can't map iomem space 0x%x-0x%x\n",
                    575:                        sc->sc_dev.dv_xname, ia->ia_maddr,
                    576:                        ia->ia_maddr + ia->ia_msize - 1));
                    577:                bus_space_unmap(ia->ia_iot, ioh, ia->ia_iosize);
                    578:                return;
                    579:        }
1.1       pk        580:
1.2       pk        581:        sc->bt = ia->ia_memt;
                    582:        sc->bh = memh;
1.1       pk        583:
1.2       pk        584:        sc->sc_msize = ia->ia_msize;
1.6       augustss  585:        sc->sc_maddr = (void *)memh;
                    586:        sc->sc_iobase = (char *)sc->sc_maddr + sc->sc_msize - (1 << 24);
1.2       pk        587:
                    588:        /* set up pointers to important on-card control structures */
                    589:        sc->iscp = 0;
                    590:        sc->scb = IE_ISCP_SZ;
                    591:        sc->scp = sc->sc_msize + IE_SCP_ADDR - (1 << 24);
                    592:
                    593:        sc->buf_area = sc->scb + IE_SCB_SZ;
                    594:        sc->buf_area_sz = sc->sc_msize - IE_ISCP_SZ - IE_SCB_SZ - IE_SCP_SZ;
                    595:
                    596:        /* zero card memory */
                    597:        bus_space_set_region_1(sc->bt, sc->bh, 0, 0, sc->sc_msize);
                    598:
                    599:        /* set card to 16-bit bus mode */
1.8.2.3 ! nathanw   600:        bus_space_write_1(sc->bt, sc->bh, IE_SCP_BUS_USE((u_long)sc->scp),
        !           601:                          IE_SYSBUS_16BIT);
1.2       pk        602:
                    603:        /* set up pointers to key structures */
                    604:        ef_write_24(sc, IE_SCP_ISCP((u_long)sc->scp), (u_long) sc->iscp);
                    605:        ef_write_16(sc, IE_ISCP_SCB((u_long)sc->iscp), (u_long) sc->scb);
                    606:        ef_write_24(sc, IE_ISCP_BASE((u_long)sc->iscp), (u_long) sc->iscp);
                    607:
                    608:        /* flush setup of pointers, check if chip answers */
                    609:        bus_space_barrier(sc->bt, sc->bh, 0, sc->sc_msize,
                    610:                          BUS_SPACE_BARRIER_WRITE);
                    611:        if (!i82586_proberam(sc)) {
                    612:                DPRINTF(("\n%s: can't talk to i82586!\n",
                    613:                        sc->sc_dev.dv_xname));
                    614:                bus_space_unmap(ia->ia_iot, ioh, ia->ia_iosize);
                    615:                bus_space_unmap(ia->ia_memt, memh, ia->ia_msize);
                    616:                return;
                    617:        }
1.1       pk        618:
1.2       pk        619:        /* set bank 2 for card part number and revision */
                    620:        bus_space_write_1(esc->sc_regt, esc->sc_regh, EF_CTRL,
                    621:                          EF_CTRL_NRST | EF_CTRL_BNK2);
                    622:
                    623:        /* card revision is encoded in BCD */
                    624:        i = bus_space_read_1(esc->sc_regt, esc->sc_regh, EF_REV);
                    625:        esc->card_rev = 10 * (i / 16) + (i % 16);
                    626:
                    627:        for (i = 0; i < EF_TYPE_LEN; i++)
                    628:                partno[i] = bus_space_read_1(esc->sc_regt, esc->sc_regh,
                    629:                                             EF_TYPE + i);
                    630:
                    631:        /* use part number to guess if card is TP or AUI/BNC model */
                    632:        esc->card_type = EF_IS_TP(partno) ? EF_CARD_TP : EF_CARD_BNC;
                    633:
                    634:        /* set bank 0 for ethernet address */
                    635:        bus_space_write_1(esc->sc_regt, esc->sc_regh,
                    636:                          EF_CTRL, EF_CTRL_NORMAL);
                    637:
                    638:        for (i = 0; i < EF_ADDR_LEN; i++)
                    639:                ethaddr[i] = bus_space_read_1(esc->sc_regt, esc->sc_regh,
                    640:                                              EF_ADDR + i);
                    641:
                    642:        sprintf(version, "%s, rev. %d",
                    643:                (esc->card_type == EF_CARD_TP) ? "3C507-TP" : "3C507",
                    644:                esc->card_rev);
                    645:
                    646:        if (esc->card_type == EF_CARD_TP)
                    647:                i82586_attach(sc, version, ethaddr, eftp_media, NEFTP_MEDIA,
                    648:                              eftp_media[0]);
                    649:        else {
                    650:                u_int8_t media = bus_space_read_1(esc->sc_regt, esc->sc_regh,
                    651:                                                  EF_MEDIA);
                    652:                media = (media & EF_MEDIA_MASK) >> EF_MEDIA_SHIFT;
1.1       pk        653:
1.2       pk        654:                i82586_attach(sc, version, ethaddr, ef_media, NEF_MEDIA,
                    655:                              ef_media[media]);
                    656:        }
1.1       pk        657:
1.2       pk        658:        /* Clear the interrupt latch just in case. */
                    659:        bus_space_write_1(esc->sc_regt, esc->sc_regh, EF_ICTRL, 1);
1.1       pk        660:
1.2       pk        661:        esc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
                    662:                                        IPL_NET, i82586_intr, sc);
                    663:        if (esc->sc_ih == NULL) {
                    664:                DPRINTF(("\n%s: can't establish interrupt\n",
                    665:                        sc->sc_dev.dv_xname));
                    666:        }
1.1       pk        667: }
                    668:
1.2       pk        669: static int
1.1       pk        670: ef_port_check(iot, ioh)
                    671:        bus_space_tag_t iot;
                    672:        bus_space_handle_t ioh;
                    673: {
                    674:        int i;
                    675:         u_char ch;
                    676:        u_char* signature = EF_SIGNATURE;
                    677:
                    678:        for (i = 0; i < strlen(signature); i++) {
                    679:                ch = bus_space_read_1(iot, ioh, i);
                    680:                if (ch != signature[i])
                    681:                        return 0;
                    682:        }
1.2       pk        683:
1.1       pk        684:        /* If card is mapped in high memory (above 15Meg), we can't use it */
                    685:        ch = bus_space_read_1(iot, ioh, EF_MADDR);
                    686:        if (ch & EF_MADDR_HIGH)
                    687:            return 0;                   /* XXX: maybe we should panic?? */
                    688:
                    689:        return 1;
                    690: }
                    691:
                    692: struct cfattach ef_ca = {
                    693:        sizeof(struct ef_softc), ef_match, ef_attach
                    694: };
                    695:

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