1 /* $NetBSD: if_mtd_pci.c,v 1.15 2009/11/26 15:17:09 njoly 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * PCI interface for MTD803 cards 34 * Written by Peter Bex (peter.bex@student.kun.nl) 35 */ 36 37 /* TODO: Check why in IO space, the MII won't work. Memory mapped works */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: if_mtd_pci.c,v 1.15 2009/11/26 15:17:09 njoly Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/device.h> 44 #include <sys/systm.h> 45 #include <sys/socket.h> 46 #include <net/if.h> 47 #include <net/if_ether.h> 48 #include <net/if_media.h> 49 #include <sys/bus.h> 50 #include <dev/mii/miivar.h> 51 #include <dev/ic/mtd803reg.h> 52 #include <dev/ic/mtd803var.h> 53 #include <dev/pci/pcidevs.h> 54 #include <dev/pci/pcireg.h> 55 #include <dev/pci/pcivar.h> 56 57 #define PCI_IO_MAP_REG 0x10 58 #define PCI_MEM_MAP_REG 0x14 59 60 struct mtd_pci_device_id { 61 pci_vendor_id_t vendor; /* PCI vendor ID */ 62 pci_product_id_t product; /* PCI product ID */ 63 }; 64 65 static struct mtd_pci_device_id mtd_ids[] = { 66 { PCI_VENDOR_MYSON, PCI_PRODUCT_MYSON_MTD803 }, 67 { 0, 0 } 68 }; 69 70 static int mtd_pci_match(device_t, cfdata_t, void *); 71 static void mtd_pci_attach(device_t, device_t, void *); 72 73 CFATTACH_DECL(mtd_pci, sizeof(struct mtd_softc), mtd_pci_match, mtd_pci_attach, 74 NULL, NULL); 75 76 static int 77 mtd_pci_match(device_t parent, cfdata_t match, void *aux) 78 { 79 struct pci_attach_args *pa = aux; 80 struct mtd_pci_device_id *id; 81 82 for (id = mtd_ids; id->vendor != 0; ++id) { 83 if (PCI_VENDOR(pa->pa_id) == id->vendor && 84 PCI_PRODUCT(pa->pa_id) == id->product) 85 return (1); 86 } 87 return (0); 88 } 89 90 static void 91 mtd_pci_attach(device_t parent, device_t self, void *aux) 92 { 93 struct pci_attach_args * const pa = aux; 94 struct mtd_softc * const sc = device_private(self); 95 pci_intr_handle_t ih; 96 const char *intrstring = NULL; 97 bus_space_tag_t iot, memt; 98 bus_space_handle_t ioh, memh; 99 int io_valid, mem_valid; 100 char devinfo[256]; 101 102 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 103 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 104 105 io_valid = (pci_mapreg_map(pa, PCI_IO_MAP_REG, PCI_MAPREG_TYPE_IO, 106 0, &iot, &ioh, NULL, NULL) == 0); 107 mem_valid = (pci_mapreg_map(pa, PCI_MEM_MAP_REG, PCI_MAPREG_TYPE_MEM 108 | PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, 109 NULL, NULL) == 0); 110 111 if (mem_valid) { 112 sc->bus_tag = memt; 113 sc->bus_handle = memh; 114 } else if (io_valid) { 115 sc->bus_tag = iot; 116 sc->bus_handle = ioh; 117 } else { 118 aprint_error_dev(&sc->dev, "could not map memory or i/o space\n"); 119 return; 120 } 121 sc->dma_tag = pa->pa_dmat; 122 123 /* Do generic attach. Seems this must be done before setting IRQ */ 124 mtd_config(sc); 125 126 if (pci_intr_map(pa, &ih)) { 127 aprint_error_dev(&sc->dev, "could not map interrupt\n"); 128 return; 129 } 130 intrstring = pci_intr_string(pa->pa_pc, ih); 131 132 if (pci_intr_establish(pa->pa_pc, ih, IPL_NET, mtd_irq_h, sc) == NULL) { 133 aprint_error_dev(&sc->dev, "could not establish interrupt"); 134 if (intrstring != NULL) 135 aprint_error(" at %s", intrstring); 136 aprint_error("\n"); 137 return; 138 } else { 139 aprint_normal_dev(&sc->dev, "using %s for interrupt\n", 140 intrstring ? intrstring : "unknown interrupt"); 141 } 142 } 143