Annotation of sys/dev/pci/if_mtd_pci.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: if_mtd_pci.c,v 1.10 2005/08/09 04:10:12 mickey Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 2003 Oleg Safiullin <form@pdp11.org.ru>
! 5: * All rights reserved.
! 6: *
! 7: * Redistribution and use in source and binary forms, with or without
! 8: * modification, are permitted provided that the following conditions
! 9: * are met:
! 10: * 1. Redistributions of source code must retain the above copyright
! 11: * notice unmodified, this list of conditions, and the following
! 12: * disclaimer.
! 13: * 2. Redistributions in binary form must reproduce the above copyright
! 14: * notice, this list of conditions and the following disclaimer in the
! 15: * documentation and/or other materials provided with the distribution.
! 16: *
! 17: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
! 18: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 20: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
! 21: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 22: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 23: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 24: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 25: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 26: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 27: * SUCH DAMAGE.
! 28: *
! 29: */
! 30:
! 31: #include <sys/param.h>
! 32: #include <sys/device.h>
! 33: #include <sys/systm.h>
! 34: #include <sys/socket.h>
! 35:
! 36: #include <net/if.h>
! 37: #include <net/if_media.h>
! 38:
! 39: #ifdef INET
! 40: #include <netinet/in.h>
! 41: #include <netinet/if_ether.h>
! 42: #endif
! 43:
! 44: #include <machine/bus.h>
! 45:
! 46: #include <dev/mii/miivar.h>
! 47:
! 48: #include <dev/pci/pcidevs.h>
! 49: #include <dev/pci/pcireg.h>
! 50: #include <dev/pci/pcivar.h>
! 51:
! 52: #include <dev/ic/mtd8xxreg.h>
! 53: #include <dev/ic/mtd8xxvar.h>
! 54:
! 55: static int mtd_pci_match(struct device *, void *, void *);
! 56: static void mtd_pci_attach(struct device *, struct device *, void *);
! 57:
! 58:
! 59: struct cfattach mtd_pci_ca = {
! 60: sizeof(struct mtd_softc), mtd_pci_match, mtd_pci_attach
! 61: };
! 62:
! 63: const static struct pci_matchid mtd_pci_devices[] = {
! 64: { PCI_VENDOR_MYSON, PCI_PRODUCT_MYSON_MTD800 },
! 65: { PCI_VENDOR_MYSON, PCI_PRODUCT_MYSON_MTD803 },
! 66: { PCI_VENDOR_MYSON, PCI_PRODUCT_MYSON_MTD891 },
! 67: };
! 68:
! 69:
! 70: static int
! 71: mtd_pci_match(struct device *parent, void *match, void *aux)
! 72: {
! 73: return (pci_matchbyid((struct pci_attach_args *)aux, mtd_pci_devices,
! 74: sizeof(mtd_pci_devices) / sizeof(mtd_pci_devices[0])));
! 75: }
! 76:
! 77:
! 78: static void
! 79: mtd_pci_attach(struct device *parent, struct device *self, void *aux)
! 80: {
! 81: struct mtd_softc *sc = (void *)self;
! 82: struct pci_attach_args *pa = aux;
! 83: pci_intr_handle_t ih;
! 84: const char *intrstr = NULL;
! 85: u_int32_t command;
! 86: bus_size_t iosize;
! 87:
! 88: sc->sc_devid = PCI_PRODUCT(pa->pa_id);
! 89: command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
! 90: if (sc->sc_devid == PCI_PRODUCT_MYSON_MTD800 &&
! 91: pci_conf_read(pa->pa_pc, pa->pa_tag, MTD_PCI_LOIO) & 0x300) {
! 92: pa->pa_flags &= ~PCI_FLAGS_IO_ENABLED;
! 93: command &= ~PCI_COMMAND_IO_ENABLE;
! 94: }
! 95: pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);
! 96:
! 97: command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
! 98: if (command & PCI_COMMAND_MEM_ENABLE) {
! 99: if (pci_mapreg_map(pa, MTD_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0,
! 100: &sc->sc_bust, &sc->sc_bush, NULL, &iosize, 0)) {
! 101: printf(": can't map mem space\n");
! 102: return;
! 103: }
! 104: } else {
! 105: if (pci_mapreg_map(pa, MTD_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0,
! 106: &sc->sc_bust, &sc->sc_bush, NULL, &iosize, 0)) {
! 107: printf(": can't map io space\n");
! 108: return;
! 109: }
! 110: }
! 111:
! 112: /*
! 113: * Allocate our interrupt.
! 114: */
! 115: if (pci_intr_map(pa, &ih)) {
! 116: printf(": couldn't map interrupt\n");
! 117: bus_space_unmap(sc->sc_bust, sc->sc_bush, iosize);
! 118: return;
! 119: }
! 120:
! 121: intrstr = pci_intr_string(pa->pa_pc, ih);
! 122: if (pci_intr_establish(pa->pa_pc, ih, IPL_NET, mtd_intr, sc,
! 123: self->dv_xname) == NULL) {
! 124: printf(": couldn't establish interrupt");
! 125: if (intrstr != NULL)
! 126: printf(" at %s", intrstr);
! 127: printf("\n");
! 128: bus_space_unmap(sc->sc_bust, sc->sc_bush, iosize);
! 129: return;
! 130: }
! 131: printf(": %s", intrstr);
! 132:
! 133: sc->sc_dmat = pa->pa_dmat;
! 134: mtd_attach(sc);
! 135: }
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