1 /* $OpenBSD: if_mtd_pci.c,v 1.9 2003/09/29 10:05:07 miod 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 command |= PCI_COMMAND_MASTER_ENABLE; 91 if (sc->sc_devid == PCI_PRODUCT_MYSON_MTD800 && 92 pci_conf_read(pa->pa_pc, pa->pa_tag, MTD_PCI_LOIO) & 0x300) { 93 pa->pa_flags &= ~PCI_FLAGS_IO_ENABLED; 94 command &= ~PCI_COMMAND_IO_ENABLE; 95 } 96 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command); 97 98 command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 99 if (command & PCI_COMMAND_MEM_ENABLE) { 100 if (pci_mapreg_map(pa, MTD_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0, 101 &sc->sc_bust, &sc->sc_bush, NULL, &iosize, 0)) { 102 printf(": can't map mem space\n"); 103 return; 104 } 105 } else { 106 if (pci_mapreg_map(pa, MTD_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, 107 &sc->sc_bust, &sc->sc_bush, NULL, &iosize, 0)) { 108 printf(": can't map io space\n"); 109 return; 110 } 111 } 112 113 /* 114 * Allocate our interrupt. 115 */ 116 if (pci_intr_map(pa, &ih)) { 117 printf(": couldn't map interrupt\n"); 118 bus_space_unmap(sc->sc_bust, sc->sc_bush, iosize); 119 return; 120 } 121 122 intrstr = pci_intr_string(pa->pa_pc, ih); 123 if (pci_intr_establish(pa->pa_pc, ih, IPL_NET, mtd_intr, sc, 124 self->dv_xname) == NULL) { 125 printf(": couldn't establish interrupt"); 126 if (intrstr != NULL) 127 printf(" at %s", intrstr); 128 printf("\n"); 129 bus_space_unmap(sc->sc_bust, sc->sc_bush, iosize); 130 return; 131 } 132 printf(": %s", intrstr); 133 134 sc->sc_dmat = pa->pa_dmat; 135 mtd_attach(sc); 136 } 137