if_ral_cardbus.c revision 1.2
1 /* $NetBSD: if_ral_cardbus.c,v 1.2 2005/07/04 17:50:09 drochner Exp $ */ 2 /* $OpenBSD: if_ral_cardbus.c,v 1.5 2005/05/16 01:36:25 brad Exp $ */ 3 4 /*- 5 * Copyright (c) 2005 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 RT2500 driver. 23 */ 24 25 #include <sys/cdefs.h> 26 __KERNEL_RCSID(0, "$NetBSD: if_ral_cardbus.c,v 1.2 2005/07/04 17:50:09 drochner Exp $"); 27 28 #include "bpfilter.h" 29 30 #include <sys/param.h> 31 #include <sys/sockio.h> 32 #include <sys/mbuf.h> 33 #include <sys/kernel.h> 34 #include <sys/socket.h> 35 #include <sys/systm.h> 36 #include <sys/malloc.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_ether.h> 45 #include <net/if_media.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/ralvar.h> 54 55 #include <dev/pci/pcireg.h> 56 #include <dev/pci/pcivar.h> 57 #include <dev/pci/pcidevs.h> 58 59 #include <dev/cardbus/cardbusvar.h> 60 61 struct ral_cardbus_softc { 62 struct ral_softc sc_sc; 63 64 /* cardbus specific goo */ 65 cardbus_devfunc_t sc_ct; 66 cardbustag_t sc_tag; 67 void *sc_ih; 68 bus_size_t sc_mapsize; 69 pcireg_t sc_bar_val; 70 int sc_intrline; 71 }; 72 73 int ral_cardbus_match(struct device *, struct cfdata *, void *); 74 void ral_cardbus_attach(struct device *, struct device *, void *); 75 int ral_cardbus_detach(struct device *, int); 76 77 CFATTACH_DECL(ral_cardbus, sizeof (struct ral_cardbus_softc), 78 ral_cardbus_match, ral_cardbus_attach, ral_cardbus_detach, NULL); 79 80 int ral_cardbus_enable(struct ral_softc *); 81 void ral_cardbus_disable(struct ral_softc *); 82 void ral_cardbus_power(struct ral_softc *, int); 83 void ral_cardbus_setup(struct ral_cardbus_softc *); 84 85 int 86 ral_cardbus_match(struct device *parent, struct cfdata *match, void *aux) 87 { 88 struct cardbus_attach_args *ca = aux; 89 90 if (CARDBUS_VENDOR(ca->ca_id) == PCI_VENDOR_RALINK && 91 CARDBUS_PRODUCT(ca->ca_id) == PCI_PRODUCT_RALINK_RT2560) 92 return 1; 93 94 return 0; 95 } 96 97 void 98 ral_cardbus_attach(struct device *parent, struct device *self, void *aux) 99 { 100 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)self; 101 struct ral_softc *sc = &csc->sc_sc; 102 struct cardbus_attach_args *ca = aux; 103 cardbus_devfunc_t ct = ca->ca_ct; 104 bus_addr_t base; 105 int error; 106 107 sc->sc_dmat = ca->ca_dmat; 108 csc->sc_ct = ct; 109 csc->sc_tag = ca->ca_tag; 110 csc->sc_intrline = ca->ca_intrline; 111 112 /* power management hooks */ 113 sc->sc_enable = ral_cardbus_enable; 114 sc->sc_disable = ral_cardbus_disable; 115 sc->sc_power = ral_cardbus_power; 116 117 /* map control/status registers */ 118 error = Cardbus_mapreg_map(ct, CARDBUS_BASE0_REG, 119 CARDBUS_MAPREG_TYPE_MEM, 0, &sc->sc_st, &sc->sc_sh, &base, 120 &csc->sc_mapsize); 121 if (error != 0) { 122 printf(": could not map memory space\n"); 123 return; 124 } 125 126 #if rbus 127 #else 128 (*cf->cardbus_mem_open)(cc, 0, base, base + csc->sc_mapsize); 129 #endif 130 131 csc->sc_bar_val = base | CARDBUS_MAPREG_TYPE_MEM; 132 133 /* set up the PCI configuration registers */ 134 ral_cardbus_setup(csc); 135 136 printf(": irq %d\n", csc->sc_intrline); 137 138 ral_attach(sc); 139 140 Cardbus_function_disable(ct); 141 } 142 143 int 144 ral_cardbus_detach(struct device *self, int flags) 145 { 146 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)self; 147 struct ral_softc *sc = &csc->sc_sc; 148 cardbus_devfunc_t ct = csc->sc_ct; 149 cardbus_chipset_tag_t cc = ct->ct_cc; 150 cardbus_function_tag_t cf = ct->ct_cf; 151 int error; 152 153 error = ral_detach(sc); 154 if (error != 0) 155 return error; 156 157 /* unhook the interrupt handler */ 158 if (csc->sc_ih != NULL) { 159 cardbus_intr_disestablish(cc, cf, csc->sc_ih); 160 csc->sc_ih = NULL; 161 } 162 163 /* release bus space and close window */ 164 Cardbus_mapreg_unmap(ct, CARDBUS_BASE0_REG, sc->sc_st, sc->sc_sh, 165 csc->sc_mapsize); 166 167 return 0; 168 } 169 170 int 171 ral_cardbus_enable(struct ral_softc *sc) 172 { 173 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc; 174 cardbus_devfunc_t ct = csc->sc_ct; 175 cardbus_chipset_tag_t cc = ct->ct_cc; 176 cardbus_function_tag_t cf = ct->ct_cf; 177 178 /* power on the socket */ 179 Cardbus_function_enable(ct); 180 181 /* setup the PCI configuration registers */ 182 ral_cardbus_setup(csc); 183 184 /* map and establish the interrupt handler */ 185 csc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, IPL_NET, 186 ral_intr, sc); 187 if (csc->sc_ih == NULL) { 188 printf("%s: could not establish interrupt at %d\n", 189 sc->sc_dev.dv_xname, csc->sc_intrline); 190 Cardbus_function_disable(ct); 191 return 1; 192 } 193 194 return 0; 195 } 196 197 void 198 ral_cardbus_disable(struct ral_softc *sc) 199 { 200 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc; 201 cardbus_devfunc_t ct = csc->sc_ct; 202 cardbus_chipset_tag_t cc = ct->ct_cc; 203 cardbus_function_tag_t cf = ct->ct_cf; 204 205 /* unhook the interrupt handler */ 206 cardbus_intr_disestablish(cc, cf, csc->sc_ih); 207 csc->sc_ih = NULL; 208 209 /* power down the socket */ 210 Cardbus_function_disable(ct); 211 } 212 213 void 214 ral_cardbus_power(struct ral_softc *sc, int why) 215 { 216 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc; 217 218 if (why == PWR_RESUME) { 219 /* kick the PCI configuration registers */ 220 ral_cardbus_setup(csc); 221 } 222 } 223 224 void 225 ral_cardbus_setup(struct ral_cardbus_softc *csc) 226 { 227 cardbus_devfunc_t ct = csc->sc_ct; 228 cardbus_chipset_tag_t cc = ct->ct_cc; 229 cardbus_function_tag_t cf = ct->ct_cf; 230 pcireg_t reg; 231 232 /* program the BAR */ 233 cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_BASE0_REG, 234 csc->sc_bar_val); 235 236 /* make sure the right access type is on the cardbus bridge */ 237 (*cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE); 238 (*cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); 239 240 /* enable the appropriate bits in the PCI CSR */ 241 reg = cardbus_conf_read(cc, cf, csc->sc_tag, 242 CARDBUS_COMMAND_STATUS_REG); 243 reg |= CARDBUS_COMMAND_MASTER_ENABLE | CARDBUS_COMMAND_MEM_ENABLE; 244 cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_COMMAND_STATUS_REG, 245 reg); 246 } 247
Indexes created Tue Sep 30 07:10:03 GMT 2025