/* $NetBSD: if_ate_mca.c,v 1.21 2008/04/28 20:23:53 martin Exp $ */ /*- * Copyright (c) 2001 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jaromir Dolecek. * * 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. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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. */ /* * Driver for ATI AT1720X MCA cards based on Fujitsu MB8696xA controller. */ #include __KERNEL_RCSID(0, "$NetBSD: if_ate_mca.c,v 1.21 2008/04/28 20:23:53 martin Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include int ate_mca_match(device_t, cfdata_t, void *); void ate_mca_attach(device_t, device_t, void *); static void ate_mca_detect(bus_space_tag_t, bus_space_handle_t, uint8_t enaddr[ETHER_ADDR_LEN]); #define ATE_NPORTS 0x20 struct ate_softc { struct mb86960_softc sc_mb86960; /* real "mb86960" softc */ /* MCA-specific goo. */ void *sc_ih; /* interrupt cookie */ }; CFATTACH_DECL_NEW(ate_mca, sizeof(struct ate_softc), ate_mca_match, ate_mca_attach, NULL, NULL); static const struct ate_mca_product { uint32_t at_prodid; /* MCA product ID */ const char *at_name; /* device name */ int at_type; /* device type */ } ate_mca_products[] = { { MCA_PRODUCT_AT1720T, "ATI AT1720T", FE_TYPE_AT1700T }, { MCA_PRODUCT_AT1720BT, "ATI AT1720BT", FE_TYPE_AT1700BT }, { MCA_PRODUCT_AT1720AT, "ATI AT1720AT", FE_TYPE_AT1700AT }, { MCA_PRODUCT_AT1720FT, "ATI AT1720FT", FE_TYPE_AT1700FT }, { 0, NULL, 0 }, }; static const struct ate_mca_product *ate_mca_lookup(uint32_t); static const struct ate_mca_product * ate_mca_lookup(uint32_t id) { const struct ate_mca_product *atp; for (atp = ate_mca_products; atp->at_name != NULL; atp++) if (id == atp->at_prodid) return atp; return NULL; } int ate_mca_match(device_t parent, cfdata_t cf, void *aux) { struct mca_attach_args *ma = aux; if (ate_mca_lookup(ma->ma_id) != NULL) return 1; return 0; } /* see POS diagrams below for explanation of these arrays' contents */ static const int ats_iobase[] = { 0x400, 0x2400, 0x4400, 0x6400, 0x1400, 0x3400, 0x5400, 0x7400 }; static const int ats_irq[] = { 3, 4, 5, 9, 10, 11, 12, 15 }; void ate_mca_attach(device_t parent, device_t self, void *aux) { struct ate_softc *isc = device_private(self); struct mb86960_softc *sc = &isc->sc_mb86960; struct mca_attach_args *ma = aux; bus_space_tag_t iot = ma->ma_iot; bus_space_handle_t ioh; uint8_t myea[ETHER_ADDR_LEN]; int pos3, pos4; int iobase, irq; const struct ate_mca_product *atp; sc->sc_dev = self; pos3 = mca_conf_read(ma->ma_mc, ma->ma_slot, 3); pos4 = mca_conf_read(ma->ma_mc, ma->ma_slot, 4); /* * POS register 2: (adf pos0) * 7 6 5 4 3 2 1 0 * \__ enable: 0=adapter disabled, 1=adapter enabled * * POS register 3: (adf pos1) * * 7 6 5 4 3 2 1 0 * \_/ \___/ \___/ * \ \ \__ I/O Port Addresses: 000=0x400-0x4FF 100=0x1400- * \ \ 001=0x2400 101=0x3400 010=0x4400 110=0x5400 * \ \ 011=0x6400 111=0x7400 * \ \_____ Boot ROM Memory Address * \ * \_________ Lower 2 bit of Interrupt Request Number * * POS register 4: (adf pos2) * * 7 6 5 4 3 2 1 0 * \ \_______ Twisted Pair Type: 0=100 ohm, Unshielded * \ 1=150 ohm, Shielded * \____________ Higher 1 bit of Interrupt Request Number: * 000=3 001=4 010=5 011=9 100=10 101=11 110=12 111=15 */ atp = ate_mca_lookup(ma->ma_id); #ifdef DIAGNOSTIC if (atp == NULL) { aprint_normal("\n"); aprint_error_dev(sc->sc_dev, "where did the card go?\n"); return; } #endif iobase = ats_iobase[pos3 & 0x7]; irq = ats_irq[((pos4 & 0x40) >> 4) | ((pos3 & 0xc0) >> 6)]; aprint_normal(" slot %d irq %d: %s\n", ma->ma_slot + 1, irq, atp->at_name); /* Map i/o space. */ if (bus_space_map(iot, iobase, ATE_NPORTS, 0, &ioh)) { aprint_error_dev(sc->sc_dev, "can't map i/o space\n"); return; } sc->sc_bst = iot; sc->sc_bsh = ioh; /* Get ethernet address. */ ate_mca_detect(iot, ioh, myea); /* This interface is always enabled. */ sc->sc_stat |= FE_STAT_ENABLED; /* * Do generic MB86960 attach. */ mb86960_attach(sc, myea); mb86960_config(sc, NULL, 0, 0); /* Establish the interrupt handler. */ isc->sc_ih = mca_intr_establish(ma->ma_mc, irq, IPL_NET, mb86960_intr, sc); if (isc->sc_ih == NULL) { aprint_error_dev(sc->sc_dev, "couldn't establish interrupt handler\n"); return; } } /* * Very simplified ate_detect() from dev/isa/if_ate.c, only * to determine ethernet address. */ static void ate_mca_detect(bus_space_tag_t iot, bus_space_handle_t ioh, uint8_t enaddr[ETHER_ADDR_LEN]) { uint8_t eeprom[FE_EEPROM_SIZE]; /* Get our station address from EEPROM. */ mb86965_read_eeprom(iot, ioh, eeprom); memcpy(enaddr, eeprom + FE_ATI_EEP_ADDR, ETHER_ADDR_LEN); }