if_mtd_pci.c revision 1.3
1/* $NetBSD: if_mtd_pci.c,v 1.3 2003/10/15 06:32:35 simonb Exp $ */ 2 3/*- 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Peter Bex <Peter.Bex@student.kun.nl>. 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 */ 38 39/* 40 * PCI interface for MTD803 cards 41 * Written by Peter Bex (peter.bex@student.kun.nl) 42 */ 43 44/* TODO: Check why in IO space, the MII won't work. Memory mapped works */ 45 46#include <sys/cdefs.h> 47__KERNEL_RCSID(0, "$NetBSD: if_mtd_pci.c,v 1.3 2003/10/15 06:32:35 simonb Exp $"); 48 49#include <sys/param.h> 50#include <sys/device.h> 51#include <sys/systm.h> 52#include <sys/socket.h> 53#include <net/if.h> 54#include <net/if_ether.h> 55#include <net/if_media.h> 56#include <machine/bus.h> 57#include <dev/mii/miivar.h> 58#include <dev/ic/mtd803reg.h> 59#include <dev/ic/mtd803var.h> 60#include <dev/pci/pcidevs.h> 61#include <dev/pci/pcireg.h> 62#include <dev/pci/pcivar.h> 63 64#define PCI_IO_MAP_REG 0x10 65#define PCI_MEM_MAP_REG 0x14 66 67struct mtd_pci_device_id { 68 pci_vendor_id_t vendor; /* PCI vendor ID */ 69 pci_product_id_t product; /* PCI product ID */ 70}; 71 72static struct mtd_pci_device_id mtd_ids[] = { 73 { PCI_VENDOR_MYSON, PCI_PRODUCT_MYSON_MTD803 }, 74 { 0, 0 } 75}; 76 77int mtd_pci_match __P((struct device *, struct cfdata *, void *)); 78void mtd_pci_attach __P((struct device *, struct device *, void *)); 79 80CFATTACH_DECL(mtd_pci, sizeof(struct mtd_softc), mtd_pci_match, mtd_pci_attach, 81 NULL, NULL); 82 83int 84mtd_pci_match(parent, match, aux) 85 struct device *parent; 86 struct cfdata *match; 87 void *aux; 88{ 89 struct pci_attach_args *pa = aux; 90 struct mtd_pci_device_id *id; 91 92 for (id = mtd_ids; id->vendor != 0; ++id) { 93 if (PCI_VENDOR(pa->pa_id) == id->vendor && 94 PCI_PRODUCT(pa->pa_id) == id->product) 95 return (1); 96 } 97 return (0); 98} 99 100void 101mtd_pci_attach(parent, self, aux) 102 struct device *parent; 103 struct device *self; 104 void *aux; 105{ 106 struct pci_attach_args * const pa = aux; 107 struct mtd_softc * const sc = (void *)self; 108 pci_intr_handle_t ih; 109 const char *intrstring = NULL; 110 bus_space_tag_t iot, memt; 111 bus_space_handle_t ioh, memh; 112 int io_valid, mem_valid; 113 char devinfo[256]; 114 115 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo); 116 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 117 118 io_valid = (pci_mapreg_map(pa, PCI_IO_MAP_REG, PCI_MAPREG_TYPE_IO, 119 0, &iot, &ioh, NULL, NULL) == 0); 120 mem_valid = (pci_mapreg_map(pa, PCI_MEM_MAP_REG, PCI_MAPREG_TYPE_MEM 121 | PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, 122 NULL, NULL) == 0); 123 124 if (mem_valid) { 125 sc->bus_tag = memt; 126 sc->bus_handle = memh; 127 } else if (io_valid) { 128 sc->bus_tag = iot; 129 sc->bus_handle = ioh; 130 } else { 131 printf("%s: could not map memory or i/o space\n", 132 sc->dev.dv_xname); 133 return; 134 } 135 sc->dma_tag = pa->pa_dmat; 136 137 /* Do generic attach. Seems this must be done before setting IRQ */ 138 mtd_config(sc); 139 140 if (pci_intr_map(pa, &ih)) { 141 printf("%s: could not map interrupt\n", sc->dev.dv_xname); 142 return; 143 } 144 intrstring = pci_intr_string(pa->pa_pc, ih); 145 146 if (pci_intr_establish(pa->pa_pc, ih, IPL_NET, mtd_irq_h, sc) == NULL) { 147 printf("%s: could not establish interrupt", sc->dev.dv_xname); 148 if (intrstring != NULL) 149 printf(" at %s", intrstring); 150 printf("\n"); 151 return; 152 } else { 153 printf("%s: using %s for interrupt\n", 154 sc->dev.dv_xname, 155 intrstring ? intrstring : "unknown interrupt"); 156 } 157} 158