if_ral_cardbus.c revision 1.6
1 /* $NetBSD: if_ral_cardbus.c,v 1.6 2006/09/25 22:14:01 jmcneill Exp $ */ 2 /* $OpenBSD: if_ral_cardbus.c,v 1.6 2006/01/09 20:03:31 damien Exp $ */ 3 4 /*- 5 * Copyright (c) 2005, 2006 6 * Damien Bergamini <damien.bergamini (at) free.fr> 7 * 8 * Permission to use, copy, modify, and distribute this software for any 9 * purpose with or without fee is hereby granted, provided that the above 10 * copyright notice and this permission notice appear in all copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 */ 20 21 /* 22 * CardBus front-end for the Ralink RT2560/RT2561/RT2561S/RT2661 driver. 23 */ 24 #include <sys/cdefs.h> 25 __KERNEL_RCSID(0, "$NetBSD: if_ral_cardbus.c,v 1.6 2006/09/25 22:14:01 jmcneill Exp $"); 26 27 #include "bpfilter.h" 28 29 #include <sys/param.h> 30 #include <sys/sockio.h> 31 #include <sys/mbuf.h> 32 #include <sys/kernel.h> 33 #include <sys/socket.h> 34 #include <sys/systm.h> 35 #include <sys/malloc.h> 36 #include <sys/callout.h> 37 #include <sys/device.h> 38 39 #include <machine/bus.h> 40 #include <machine/intr.h> 41 42 #include <net/if.h> 43 #include <net/if_dl.h> 44 #include <net/if_media.h> 45 #include <net/if_ether.h> 46 47 #include <netinet/in.h> 48 49 #include <net80211/ieee80211_var.h> 50 #include <net80211/ieee80211_rssadapt.h> 51 #include <net80211/ieee80211_radiotap.h> 52 53 #include <dev/ic/rt2560var.h> 54 #include <dev/ic/rt2661var.h> 55 56 #include <dev/pci/pcireg.h> 57 #include <dev/pci/pcivar.h> 58 #include <dev/pci/pcidevs.h> 59 60 #include <dev/cardbus/cardbusvar.h> 61 62 static struct ral_opns { 63 int (*attach)(void *, int); 64 int (*detach)(void *); 65 int (*intr)(void *); 66 67 } ral_rt2560_opns = { 68 rt2560_attach, 69 rt2560_detach, 70 rt2560_intr 71 72 }, ral_rt2661_opns = { 73 rt2661_attach, 74 rt2661_detach, 75 rt2661_intr 76 }; 77 78 struct ral_cardbus_softc { 79 union { 80 struct rt2560_softc sc_rt2560; 81 struct rt2661_softc sc_rt2661; 82 } u; 83 #define sc_sc u.sc_rt2560 84 85 /* cardbus specific goo */ 86 struct ral_opns *sc_opns; 87 cardbus_devfunc_t sc_ct; 88 cardbustag_t sc_tag; 89 void *sc_ih; 90 bus_size_t sc_mapsize; 91 pcireg_t sc_bar_val; 92 int sc_intrline; 93 }; 94 95 int ral_cardbus_match(struct device *, struct cfdata *, void *); 96 void ral_cardbus_attach(struct device *, struct device *, void *); 97 int ral_cardbus_detach(struct device *, int); 98 99 CFATTACH_DECL(ral_cardbus, sizeof (struct ral_cardbus_softc), 100 ral_cardbus_match, ral_cardbus_attach, ral_cardbus_detach, NULL); 101 102 int ral_cardbus_enable(struct rt2560_softc *); 103 void ral_cardbus_disable(struct rt2560_softc *); 104 void ral_cardbus_power(struct rt2560_softc *, int); 105 void ral_cardbus_setup(struct ral_cardbus_softc *); 106 107 int 108 ral_cardbus_match(struct device *parent, struct cfdata *cfdata, void *aux) 109 { 110 struct cardbus_attach_args *ca = aux; 111 112 if (PCI_VENDOR(ca->ca_id) == PCI_VENDOR_RALINK) { 113 switch (PCI_PRODUCT(ca->ca_id)) { 114 case PCI_PRODUCT_RALINK_RT2560: 115 case PCI_PRODUCT_RALINK_RT2561: 116 case PCI_PRODUCT_RALINK_RT2561S: 117 case PCI_PRODUCT_RALINK_RT2661: 118 return 1; 119 default: 120 return 0; 121 } 122 } 123 124 return 0; 125 } 126 127 void 128 ral_cardbus_attach(struct device *parent, struct device *self, void *aux) 129 { 130 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)self; 131 struct rt2560_softc *sc = &csc->sc_sc; 132 struct cardbus_attach_args *ca = aux; 133 cardbus_devfunc_t ct = ca->ca_ct; 134 bus_addr_t base; 135 int error; 136 137 csc->sc_opns = 138 (CARDBUS_PRODUCT(ca->ca_id) == PCI_PRODUCT_RALINK_RT2560) ? 139 &ral_rt2560_opns : &ral_rt2661_opns; 140 141 sc->sc_dmat = ca->ca_dmat; 142 csc->sc_ct = ct; 143 csc->sc_tag = ca->ca_tag; 144 csc->sc_intrline = ca->ca_intrline; 145 146 /* power management hooks */ 147 sc->sc_enable = ral_cardbus_enable; 148 sc->sc_disable = ral_cardbus_disable; 149 sc->sc_power = ral_cardbus_power; 150 151 /* map control/status registers */ 152 error = Cardbus_mapreg_map(ct, CARDBUS_BASE0_REG, 153 CARDBUS_MAPREG_TYPE_MEM, 0, &sc->sc_st, &sc->sc_sh, &base, 154 &csc->sc_mapsize); 155 if (error != 0) { 156 printf(": could not map memory space\n"); 157 return; 158 } 159 160 #if rbus 161 #else 162 (*cf->cardbus_mem_open)(cc, 0, base, base + csc->sc_mapsize); 163 #endif 164 165 csc->sc_bar_val = base | CARDBUS_MAPREG_TYPE_MEM; 166 167 /* set up the PCI configuration registers */ 168 ral_cardbus_setup(csc); 169 170 printf(": irq %d\n", csc->sc_intrline); 171 172 (*csc->sc_opns->attach)(sc, CARDBUS_PRODUCT(ca->ca_id)); 173 174 Cardbus_function_disable(ct); 175 } 176 177 int 178 ral_cardbus_detach(struct device *self, int flags) 179 { 180 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)self; 181 struct rt2560_softc *sc = &csc->sc_sc; 182 cardbus_devfunc_t ct = csc->sc_ct; 183 cardbus_chipset_tag_t cc = ct->ct_cc; 184 cardbus_function_tag_t cf = ct->ct_cf; 185 int error; 186 187 error = (*csc->sc_opns->detach)(sc); 188 if (error != 0) 189 return error; 190 191 /* unhook the interrupt handler */ 192 if (csc->sc_ih != NULL) { 193 cardbus_intr_disestablish(cc, cf, csc->sc_ih); 194 csc->sc_ih = NULL; 195 } 196 197 /* release bus space and close window */ 198 Cardbus_mapreg_unmap(ct, CARDBUS_BASE0_REG, sc->sc_st, sc->sc_sh, 199 csc->sc_mapsize); 200 201 return 0; 202 } 203 204 int 205 ral_cardbus_enable(struct rt2560_softc *sc) 206 { 207 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc; 208 cardbus_devfunc_t ct = csc->sc_ct; 209 cardbus_chipset_tag_t cc = ct->ct_cc; 210 cardbus_function_tag_t cf = ct->ct_cf; 211 212 /* power on the socket */ 213 Cardbus_function_enable(ct); 214 215 /* setup the PCI configuration registers */ 216 ral_cardbus_setup(csc); 217 218 /* map and establish the interrupt handler */ 219 csc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, IPL_NET, 220 csc->sc_opns->intr, sc); 221 if (csc->sc_ih == NULL) { 222 printf("%s: could not establish interrupt at %d\n", 223 sc->sc_dev.dv_xname, csc->sc_intrline); 224 Cardbus_function_disable(ct); 225 return 1; 226 } 227 228 return 0; 229 } 230 231 void 232 ral_cardbus_disable(struct rt2560_softc *sc) 233 { 234 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc; 235 cardbus_devfunc_t ct = csc->sc_ct; 236 cardbus_chipset_tag_t cc = ct->ct_cc; 237 cardbus_function_tag_t cf = ct->ct_cf; 238 239 /* unhook the interrupt handler */ 240 cardbus_intr_disestablish(cc, cf, csc->sc_ih); 241 csc->sc_ih = NULL; 242 243 /* power down the socket */ 244 Cardbus_function_disable(ct); 245 } 246 247 void 248 ral_cardbus_power(struct rt2560_softc *sc, int why) 249 { 250 251 switch (why) { 252 case PWR_RESUME: 253 ral_cardbus_enable(sc); 254 break; 255 case PWR_SUSPEND: 256 ral_cardbus_disable(sc); 257 break; 258 } 259 260 return; 261 } 262 263 void 264 ral_cardbus_setup(struct ral_cardbus_softc *csc) 265 { 266 cardbus_devfunc_t ct = csc->sc_ct; 267 cardbus_chipset_tag_t cc = ct->ct_cc; 268 cardbus_function_tag_t cf = ct->ct_cf; 269 pcireg_t reg; 270 271 /* program the BAR */ 272 cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_BASE0_REG, 273 csc->sc_bar_val); 274 275 /* make sure the right access type is on the cardbus bridge */ 276 (*cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE); 277 (*cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); 278 279 /* enable the appropriate bits in the PCI CSR */ 280 reg = cardbus_conf_read(cc, cf, csc->sc_tag, 281 CARDBUS_COMMAND_STATUS_REG); 282 reg |= CARDBUS_COMMAND_MASTER_ENABLE | CARDBUS_COMMAND_MEM_ENABLE; 283 cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_COMMAND_STATUS_REG, 284 reg); 285 } 286
Indexes created Tue Sep 30 07:10:03 GMT 2025