1 /* $OpenBSD: if_ral_pci.c,v 1.15 2009/03/29 21:53:52 sthen Exp $ */ 2 3 /*- 4 * Copyright (c) 2005-2007 5 * Damien Bergamini <damien.bergamini@free.fr> 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 /* 21 * PCI front-end for the Ralink RT2560/RT2561/RT2661/RT2860 driver. 22 */ 23 24 #include "bpfilter.h" 25 26 #include <sys/param.h> 27 #include <sys/sockio.h> 28 #include <sys/mbuf.h> 29 #include <sys/kernel.h> 30 #include <sys/socket.h> 31 #include <sys/systm.h> 32 #include <sys/malloc.h> 33 #include <sys/timeout.h> 34 #include <sys/device.h> 35 36 #include <machine/bus.h> 37 #include <machine/intr.h> 38 39 #include <net/if.h> 40 #include <net/if_dl.h> 41 #include <net/if_media.h> 42 43 #include <netinet/in.h> 44 #include <netinet/if_ether.h> 45 46 #include <net80211/ieee80211_var.h> 47 #include <net80211/ieee80211_amrr.h> 48 #include <net80211/ieee80211_radiotap.h> 49 50 #include <dev/ic/rt2560var.h> 51 #include <dev/ic/rt2661var.h> 52 #include <dev/ic/rt2860var.h> 53 54 #include <dev/pci/pcireg.h> 55 #include <dev/pci/pcivar.h> 56 #include <dev/pci/pcidevs.h> 57 58 static struct ral_opns { 59 int (*attach)(void *, int); 60 int (*detach)(void *); 61 int (*intr)(void *); 62 63 } ral_rt2560_opns = { 64 rt2560_attach, 65 rt2560_detach, 66 rt2560_intr 67 68 }, ral_rt2661_opns = { 69 rt2661_attach, 70 rt2661_detach, 71 rt2661_intr 72 73 }, ral_rt2860_opns = { 74 rt2860_attach, 75 rt2860_detach, 76 rt2860_intr 77 }; 78 79 struct ral_pci_softc { 80 union { 81 struct rt2560_softc sc_rt2560; 82 struct rt2661_softc sc_rt2661; 83 struct rt2860_softc sc_rt2860; 84 } u; 85 #define sc_sc u.sc_rt2560 86 87 /* PCI specific goo */ 88 struct ral_opns *sc_opns; 89 pci_chipset_tag_t sc_pc; 90 void *sc_ih; 91 bus_size_t sc_mapsize; 92 }; 93 94 /* Base Address Register */ 95 #define RAL_PCI_BAR0 0x10 96 97 int ral_pci_match(struct device *, void *, void *); 98 void ral_pci_attach(struct device *, struct device *, void *); 99 int ral_pci_detach(struct device *, int); 100 101 struct cfattach ral_pci_ca = { 102 sizeof (struct ral_pci_softc), ral_pci_match, ral_pci_attach, 103 ral_pci_detach 104 }; 105 106 const struct pci_matchid ral_pci_devices[] = { 107 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2560 }, 108 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2561 }, 109 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2561S }, 110 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2661 }, 111 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2860 }, 112 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2890 }, 113 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2760 }, 114 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2790 }, 115 { PCI_VENDOR_AWT, PCI_PRODUCT_AWT_RT2890 } 116 }; 117 118 int 119 ral_pci_match(struct device *parent, void *match, void *aux) 120 { 121 return (pci_matchbyid((struct pci_attach_args *)aux, ral_pci_devices, 122 nitems(ral_pci_devices))); 123 } 124 125 void 126 ral_pci_attach(struct device *parent, struct device *self, void *aux) 127 { 128 struct ral_pci_softc *psc = (struct ral_pci_softc *)self; 129 struct rt2560_softc *sc = &psc->sc_sc; 130 struct pci_attach_args *pa = aux; 131 const char *intrstr; 132 pci_intr_handle_t ih; 133 pcireg_t memtype; 134 int error; 135 136 switch (PCI_PRODUCT(pa->pa_id)) { 137 case PCI_PRODUCT_RALINK_RT2560: 138 psc->sc_opns = &ral_rt2560_opns; 139 break; 140 case PCI_PRODUCT_RALINK_RT2561: 141 case PCI_PRODUCT_RALINK_RT2561S: 142 case PCI_PRODUCT_RALINK_RT2661: 143 psc->sc_opns = &ral_rt2661_opns; 144 break; 145 case PCI_PRODUCT_RALINK_RT2860: 146 case PCI_PRODUCT_RALINK_RT2890: 147 case PCI_PRODUCT_RALINK_RT2760: 148 case PCI_PRODUCT_RALINK_RT2790: 149 case PCI_PRODUCT_AWT_RT2890: 150 psc->sc_opns = &ral_rt2860_opns; 151 break; 152 } 153 154 sc->sc_dmat = pa->pa_dmat; 155 psc->sc_pc = pa->pa_pc; 156 157 /* map control/status registers */ 158 memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, RAL_PCI_BAR0); 159 error = pci_mapreg_map(pa, RAL_PCI_BAR0, memtype, 0, &sc->sc_st, 160 &sc->sc_sh, NULL, &psc->sc_mapsize, 0); 161 if (error != 0) { 162 printf(": can't map mem space\n"); 163 return; 164 } 165 166 if (pci_intr_map(pa, &ih) != 0) { 167 printf(": can't map interrupt\n"); 168 return; 169 } 170 171 intrstr = pci_intr_string(psc->sc_pc, ih); 172 psc->sc_ih = pci_intr_establish(psc->sc_pc, ih, IPL_NET, 173 psc->sc_opns->intr, sc, sc->sc_dev.dv_xname); 174 if (psc->sc_ih == NULL) { 175 printf(": can't establish interrupt"); 176 if (intrstr != NULL) 177 printf(" at %s", intrstr); 178 printf("\n"); 179 return; 180 } 181 printf(": %s", intrstr); 182 183 (*psc->sc_opns->attach)(sc, PCI_PRODUCT(pa->pa_id)); 184 } 185 186 int 187 ral_pci_detach(struct device *self, int flags) 188 { 189 struct ral_pci_softc *psc = (struct ral_pci_softc *)self; 190 struct rt2560_softc *sc = &psc->sc_sc; 191 int error; 192 193 if (psc->sc_ih != NULL) { 194 error = (*psc->sc_opns->detach)(sc); 195 if (error != 0) 196 return error; 197 198 pci_intr_disestablish(psc->sc_pc, psc->sc_ih); 199 psc->sc_ih = NULL; 200 } 201 202 if (psc->sc_mapsize > 0) 203 bus_space_unmap(sc->sc_st, sc->sc_sh, psc->sc_mapsize); 204 205 return 0; 206 } 207