if_hme_pci.c revision 1.5.2.2
1 /* $NetBSD: if_hme_pci.c,v 1.5.2.2 2001/10/11 00:02:10 fvdl Exp $ */ 2 3 /* 4 * Copyright (c) 2000 Matthew R. Green 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, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 23 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 /* 32 * PCI front-end device driver for the HME ethernet device. 33 */ 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/syslog.h> 38 #include <sys/device.h> 39 #include <sys/malloc.h> 40 #include <sys/socket.h> 41 42 #include <net/if.h> 43 #include <net/if_dl.h> 44 #include <net/if_ether.h> 45 #include <net/if_media.h> 46 47 #include <dev/mii/mii.h> 48 #include <dev/mii/miivar.h> 49 50 #include <machine/intr.h> 51 52 #include <dev/pci/pcivar.h> 53 #include <dev/pci/pcireg.h> 54 #include <dev/pci/pcidevs.h> 55 56 #include <dev/ic/hmevar.h> 57 58 struct hme_pci_softc { 59 struct hme_softc hsc_hme; /* HME device */ 60 bus_space_tag_t hsc_memt; 61 bus_space_handle_t hsc_memh; 62 void *hsc_ih; 63 }; 64 65 int hmematch_pci __P((struct device *, struct cfdata *, void *)); 66 void hmeattach_pci __P((struct device *, struct device *, void *)); 67 68 struct cfattach hme_pci_ca = { 69 sizeof(struct hme_pci_softc), hmematch_pci, hmeattach_pci 70 }; 71 72 int 73 hmematch_pci(parent, cf, aux) 74 struct device *parent; 75 struct cfdata *cf; 76 void *aux; 77 { 78 struct pci_attach_args *pa = aux; 79 80 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SUN && 81 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_HMENETWORK) 82 return (1); 83 84 return (0); 85 } 86 87 void 88 hmeattach_pci(parent, self, aux) 89 struct device *parent, *self; 90 void *aux; 91 { 92 struct pci_attach_args *pa = aux; 93 struct hme_pci_softc *hsc = (void *)self; 94 struct hme_softc *sc = &hsc->hsc_hme; 95 pci_intr_handle_t ih; 96 pcireg_t csr; 97 const char *intrstr; 98 int type; 99 100 /* XXX the following declarations should be elsewhere */ 101 extern void myetheraddr __P((u_char *)); 102 103 printf(": Sun Happy Meal Ethernet, rev. %d\n", 104 PCI_REVISION(pa->pa_class)); 105 106 /* 107 * enable io/memory-space accesses. this is kinda of gross; but 108 # the hme comes up with neither IO space enabled, or memory space. 109 */ 110 if (pa->pa_memt) 111 pa->pa_flags |= PCI_FLAGS_MEM_ENABLED; 112 if (pa->pa_iot) 113 pa->pa_flags |= PCI_FLAGS_IO_ENABLED; 114 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 115 if (pa->pa_memt) { 116 type = PCI_MAPREG_TYPE_MEM; 117 csr |= PCI_COMMAND_MEM_ENABLE; 118 sc->sc_bustag = pa->pa_memt; 119 } else { 120 type = PCI_MAPREG_TYPE_IO; 121 csr |= PCI_COMMAND_IO_ENABLE; 122 sc->sc_bustag = pa->pa_iot; 123 } 124 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 125 csr | PCI_COMMAND_MEM_ENABLE); 126 127 sc->sc_dmatag = pa->pa_dmat; 128 129 sc->sc_pci = 1; /* XXXXX should all be done in bus_dma. */ 130 /* 131 * Map five register banks: 132 * 133 * bank 0: HME SEB registers: +0x0000 134 * bank 1: HME ETX registers: +0x2000 135 * bank 2: HME ERX registers: +0x4000 136 * bank 3: HME MAC registers: +0x6000 137 * bank 4: HME MIF registers: +0x7000 138 * 139 */ 140 141 #define PCI_HME_BASEADDR 0x10 142 if (pci_mapreg_map(pa, PCI_HME_BASEADDR, type, 0, 143 &hsc->hsc_memt, &hsc->hsc_memh, NULL, NULL) != 0) 144 { 145 printf("%s: unable to map device registers\n", 146 sc->sc_dev.dv_xname); 147 return; 148 } 149 sc->sc_seb = hsc->hsc_memh; 150 if (bus_space_subregion(hsc->hsc_memt, hsc->hsc_memh, 0x2000, 151 0x1000, &sc->sc_etx)) { 152 printf("%s: unable to subregion ETX registers\n", 153 sc->sc_dev.dv_xname); 154 return; 155 } 156 if (bus_space_subregion(hsc->hsc_memt, hsc->hsc_memh, 0x4000, 157 0x1000, &sc->sc_erx)) { 158 printf("%s: unable to subregion ERX registers\n", 159 sc->sc_dev.dv_xname); 160 return; 161 } 162 if (bus_space_subregion(hsc->hsc_memt, hsc->hsc_memh, 0x6000, 163 0x1000, &sc->sc_mac)) { 164 printf("%s: unable to subregion MAC registers\n", 165 sc->sc_dev.dv_xname); 166 return; 167 } 168 if (bus_space_subregion(hsc->hsc_memt, hsc->hsc_memh, 0x7000, 169 0x1000, &sc->sc_mif)) { 170 printf("%s: unable to subregion MIF registers\n", 171 sc->sc_dev.dv_xname); 172 return; 173 } 174 175 myetheraddr(sc->sc_enaddr); 176 177 /* 178 * Map and establish our interrupt. 179 */ 180 if (pci_intr_map(pa, &ih) != 0) { 181 printf("%s: unable to map interrupt\n", sc->sc_dev.dv_xname); 182 return; 183 } 184 intrstr = pci_intr_string(pa->pa_pc, ih); 185 hsc->hsc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_NET, hme_intr, sc); 186 if (hsc->hsc_ih == NULL) { 187 printf("%s: unable to establish interrupt", 188 sc->sc_dev.dv_xname); 189 if (intrstr != NULL) 190 printf(" at %s", intrstr); 191 printf("\n"); 192 } 193 printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); 194 195 #if 0 196 /* 197 * Get transfer burst size from PROM and pass it on 198 * to the back-end driver. 199 */ 200 sbusburst = ((struct sbus_softc *)parent)->sc_burst; 201 if (sbusburst == 0) 202 sbusburst = SBUS_BURST_32 - 1; /* 1->16 */ 203 204 burst = PROM_getpropint(node, "burst-sizes", -1); 205 if (burst == -1) 206 /* take SBus burst sizes */ 207 burst = sbusburst; 208 209 /* Clamp at parent's burst sizes */ 210 burst &= sbusburst; 211 212 /* Translate into plain numerical format */ 213 sc->sc_burst = (burst & SBUS_BURST_32) ? 32 : 214 (burst & SBUS_BURST_16) ? 16 : 0; 215 #endif 216 217 sc->sc_burst = 16; /* XXX */ 218 219 /* Finish off the attach. */ 220 hme_config(sc); 221 } 222
Indexes created Thu Oct 02 10:09:58 GMT 2025