1 /* $OpenBSD: if_ral_pci.c,v 1.20 2010/08/04 19:48:33 damien Exp $ */ 2 3 /*- 4 * Copyright (c) 2005-2010 Damien Bergamini <damien.bergamini@free.fr> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 /* 20 * PCI front-end for the Ralink RT2560/RT2561/RT2860/RT3090 driver. 21 */ 22 23 #include "bpfilter.h" 24 25 #include <sys/param.h> 26 #include <sys/sockio.h> 27 #include <sys/mbuf.h> 28 #include <sys/kernel.h> 29 #include <sys/socket.h> 30 #include <sys/systm.h> 31 #include <sys/malloc.h> 32 #include <sys/timeout.h> 33 #include <sys/device.h> 34 #include <sys/workq.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 void (*suspend)(void *); 62 void (*resume)(void *); 63 int (*intr)(void *); 64 65 } ral_rt2560_opns = { 66 rt2560_attach, 67 rt2560_detach, 68 rt2560_suspend, 69 rt2560_resume, 70 rt2560_intr 71 72 }, ral_rt2661_opns = { 73 rt2661_attach, 74 rt2661_detach, 75 rt2661_suspend, 76 rt2661_resume, 77 rt2661_intr 78 79 }, ral_rt2860_opns = { 80 rt2860_attach, 81 rt2860_detach, 82 rt2860_suspend, 83 rt2860_resume, 84 rt2860_intr 85 }; 86 87 struct ral_pci_softc { 88 union { 89 struct rt2560_softc sc_rt2560; 90 struct rt2661_softc sc_rt2661; 91 struct rt2860_softc sc_rt2860; 92 } u; 93 #define sc_sc u.sc_rt2560 94 95 /* PCI specific goo */ 96 struct ral_opns *sc_opns; 97 pci_chipset_tag_t sc_pc; 98 void *sc_ih; 99 bus_size_t sc_mapsize; 100 struct workq_task sc_resume_wqt; 101 }; 102 103 /* Base Address Register */ 104 #define RAL_PCI_BAR0 0x10 105 106 int ral_pci_match(struct device *, void *, void *); 107 void ral_pci_attach(struct device *, struct device *, void *); 108 int ral_pci_detach(struct device *, int); 109 int ral_pci_activate(struct device *, int); 110 void ral_pci_resume(void *, void *); 111 112 struct cfattach ral_pci_ca = { 113 sizeof (struct ral_pci_softc), ral_pci_match, ral_pci_attach, 114 ral_pci_detach, ral_pci_activate 115 }; 116 117 const struct pci_matchid ral_pci_devices[] = { 118 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2560 }, 119 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2561 }, 120 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2561S }, 121 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2661 }, 122 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2860 }, 123 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2890 }, 124 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2760 }, 125 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2790 }, 126 { PCI_VENDOR_AWT, PCI_PRODUCT_AWT_RT2890 }, 127 { PCI_VENDOR_EDIMAX, PCI_PRODUCT_EDIMAX_RT2860_1 }, 128 { PCI_VENDOR_EDIMAX, PCI_PRODUCT_EDIMAX_RT2860_2 }, 129 { PCI_VENDOR_EDIMAX, PCI_PRODUCT_EDIMAX_RT2860_3 }, 130 { PCI_VENDOR_EDIMAX, PCI_PRODUCT_EDIMAX_RT2860_4 }, 131 { PCI_VENDOR_EDIMAX, PCI_PRODUCT_EDIMAX_RT2860_5 }, 132 { PCI_VENDOR_EDIMAX, PCI_PRODUCT_EDIMAX_RT2860_6 }, 133 { PCI_VENDOR_EDIMAX, PCI_PRODUCT_EDIMAX_RT2860_7 }, 134 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT3062 }, 135 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT3090 }, 136 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT3091 }, 137 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT3092 }, 138 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT3562 }, 139 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT3592 }, 140 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT3593 } 141 }; 142 143 int 144 ral_pci_match(struct device *parent, void *match, void *aux) 145 { 146 return (pci_matchbyid((struct pci_attach_args *)aux, ral_pci_devices, 147 nitems(ral_pci_devices))); 148 } 149 150 void 151 ral_pci_attach(struct device *parent, struct device *self, void *aux) 152 { 153 struct ral_pci_softc *psc = (struct ral_pci_softc *)self; 154 struct rt2560_softc *sc = &psc->sc_sc; 155 struct pci_attach_args *pa = aux; 156 const char *intrstr; 157 pci_intr_handle_t ih; 158 pcireg_t memtype; 159 int error; 160 161 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_RALINK) { 162 switch (PCI_PRODUCT(pa->pa_id)) { 163 case PCI_PRODUCT_RALINK_RT2560: 164 psc->sc_opns = &ral_rt2560_opns; 165 break; 166 case PCI_PRODUCT_RALINK_RT2561: 167 case PCI_PRODUCT_RALINK_RT2561S: 168 case PCI_PRODUCT_RALINK_RT2661: 169 psc->sc_opns = &ral_rt2661_opns; 170 break; 171 default: 172 psc->sc_opns = &ral_rt2860_opns; 173 break; 174 } 175 } else { 176 /* all other vendors are RT2860 only */ 177 psc->sc_opns = &ral_rt2860_opns; 178 } 179 sc->sc_dmat = pa->pa_dmat; 180 psc->sc_pc = pa->pa_pc; 181 182 /* map control/status registers */ 183 memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, RAL_PCI_BAR0); 184 error = pci_mapreg_map(pa, RAL_PCI_BAR0, memtype, 0, &sc->sc_st, 185 &sc->sc_sh, NULL, &psc->sc_mapsize, 0); 186 if (error != 0) { 187 printf(": can't map mem space\n"); 188 return; 189 } 190 191 if (pci_intr_map(pa, &ih) != 0) { 192 printf(": can't map interrupt\n"); 193 return; 194 } 195 196 intrstr = pci_intr_string(psc->sc_pc, ih); 197 psc->sc_ih = pci_intr_establish(psc->sc_pc, ih, IPL_NET, 198 psc->sc_opns->intr, sc, sc->sc_dev.dv_xname); 199 if (psc->sc_ih == NULL) { 200 printf(": can't establish interrupt"); 201 if (intrstr != NULL) 202 printf(" at %s", intrstr); 203 printf("\n"); 204 return; 205 } 206 printf(": %s", intrstr); 207 208 (*psc->sc_opns->attach)(sc, PCI_PRODUCT(pa->pa_id)); 209 } 210 211 int 212 ral_pci_detach(struct device *self, int flags) 213 { 214 struct ral_pci_softc *psc = (struct ral_pci_softc *)self; 215 struct rt2560_softc *sc = &psc->sc_sc; 216 int error; 217 218 if (psc->sc_ih != NULL) { 219 pci_intr_disestablish(psc->sc_pc, psc->sc_ih); 220 221 error = (*psc->sc_opns->detach)(sc); 222 if (error != 0) 223 return error; 224 } 225 226 if (psc->sc_mapsize > 0) 227 bus_space_unmap(sc->sc_st, sc->sc_sh, psc->sc_mapsize); 228 229 return 0; 230 } 231 232 int 233 ral_pci_activate(struct device *self, int act) 234 { 235 struct ral_pci_softc *psc = (struct ral_pci_softc *)self; 236 struct rt2560_softc *sc = &psc->sc_sc; 237 238 switch (act) { 239 case DVACT_SUSPEND: 240 (*psc->sc_opns->suspend)(sc); 241 break; 242 case DVACT_RESUME: 243 workq_queue_task(NULL, &psc->sc_resume_wqt, 0, 244 ral_pci_resume, psc, NULL); 245 break; 246 } 247 248 return 0; 249 } 250 251 void 252 ral_pci_resume(void *arg1, void *arg2) 253 { 254 struct ral_pci_softc *psc = arg1; 255 struct rt2560_softc *sc = &psc->sc_sc; 256 int s; 257 258 s = splnet(); 259 (*psc->sc_opns->resume)(sc); 260 splx(s); 261 } 262