1/* $OpenBSD: if_mtd_pci.c,v 1.14 2024/05/24 06:02:56 jsg 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 35#include <net/if.h> 36#include <net/if_media.h> 37 38#include <netinet/in.h> 39#include <netinet/if_ether.h> 40 41#include <machine/bus.h> 42 43#include <dev/mii/miivar.h> 44 45#include <dev/pci/pcidevs.h> 46#include <dev/pci/pcireg.h> 47#include <dev/pci/pcivar.h> 48 49#include <dev/ic/mtd8xxreg.h> 50#include <dev/ic/mtd8xxvar.h> 51 52static int mtd_pci_match(struct device *, void *, void *); 53static void mtd_pci_attach(struct device *, struct device *, void *); 54 55 56const struct cfattach mtd_pci_ca = { 57 sizeof(struct mtd_softc), mtd_pci_match, mtd_pci_attach 58}; 59 60static const struct pci_matchid mtd_pci_devices[] = { 61 { PCI_VENDOR_MYSON, PCI_PRODUCT_MYSON_MTD800 }, 62 { PCI_VENDOR_MYSON, PCI_PRODUCT_MYSON_MTD803 }, 63 { PCI_VENDOR_MYSON, PCI_PRODUCT_MYSON_MTD891 }, 64}; 65 66 67static int 68mtd_pci_match(struct device *parent, void *match, void *aux) 69{ 70 return (pci_matchbyid((struct pci_attach_args *)aux, mtd_pci_devices, 71 sizeof(mtd_pci_devices) / sizeof(mtd_pci_devices[0]))); 72} 73 74 75static void 76mtd_pci_attach(struct device *parent, struct device *self, void *aux) 77{ 78 struct mtd_softc *sc = (void *)self; 79 struct pci_attach_args *pa = aux; 80 pci_intr_handle_t ih; 81 const char *intrstr = NULL; 82 u_int32_t command; 83 bus_size_t iosize; 84 85 sc->sc_devid = PCI_PRODUCT(pa->pa_id); 86 command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 87 if (sc->sc_devid == PCI_PRODUCT_MYSON_MTD800 && 88 pci_conf_read(pa->pa_pc, pa->pa_tag, MTD_PCI_LOIO) & 0x300) { 89 pa->pa_flags &= ~PCI_FLAGS_IO_ENABLED; 90 command &= ~PCI_COMMAND_IO_ENABLE; 91 } 92 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command); 93 94 command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 95 if (command & PCI_COMMAND_MEM_ENABLE) { 96 if (pci_mapreg_map(pa, MTD_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0, 97 &sc->sc_bust, &sc->sc_bush, NULL, &iosize, 0)) { 98 printf(": can't map mem space\n"); 99 return; 100 } 101 } else { 102 if (pci_mapreg_map(pa, MTD_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, 103 &sc->sc_bust, &sc->sc_bush, NULL, &iosize, 0)) { 104 printf(": can't map io space\n"); 105 return; 106 } 107 } 108 109 /* 110 * Allocate our interrupt. 111 */ 112 if (pci_intr_map(pa, &ih)) { 113 printf(": couldn't map interrupt\n"); 114 bus_space_unmap(sc->sc_bust, sc->sc_bush, iosize); 115 return; 116 } 117 118 intrstr = pci_intr_string(pa->pa_pc, ih); 119 if (pci_intr_establish(pa->pa_pc, ih, IPL_NET, mtd_intr, sc, 120 self->dv_xname) == NULL) { 121 printf(": couldn't establish interrupt"); 122 if (intrstr != NULL) 123 printf(" at %s", intrstr); 124 printf("\n"); 125 bus_space_unmap(sc->sc_bust, sc->sc_bush, iosize); 126 return; 127 } 128 printf(": %s", intrstr); 129 130 sc->sc_dmat = pa->pa_dmat; 131 mtd_attach(sc); 132} 133