if_ral_cardbus.c revision 1.16
1 /* $NetBSD: if_ral_cardbus.c,v 1.16 2009/05/12 14:17:31 cegger 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 1.16 2009/05/12 14:17:31 cegger 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 <sys/bus.h> 40 #include <sys/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_amrr.h> 51 #include <net80211/ieee80211_rssadapt.h> 52 #include <net80211/ieee80211_radiotap.h> 53 54 #include <dev/ic/rt2560var.h> 55 #include <dev/ic/rt2661var.h> 56 57 #include <dev/pci/pcireg.h> 58 #include <dev/pci/pcivar.h> 59 #include <dev/pci/pcidevs.h> 60 61 #include <dev/cardbus/cardbusvar.h> 62 63 static struct ral_opns { 64 int (*attach)(void *, int); 65 int (*detach)(void *); 66 int (*intr)(void *); 67 68 } ral_rt2560_opns = { 69 rt2560_attach, 70 rt2560_detach, 71 rt2560_intr 72 73 }, ral_rt2661_opns = { 74 rt2661_attach, 75 rt2661_detach, 76 rt2661_intr 77 }; 78 79 struct ral_cardbus_softc { 80 union { 81 struct rt2560_softc sc_rt2560; 82 struct rt2661_softc sc_rt2661; 83 } u; 84 #define sc_sc u.sc_rt2560 85 86 /* cardbus specific goo */ 87 struct ral_opns *sc_opns; 88 cardbus_devfunc_t sc_ct; 89 cardbustag_t sc_tag; 90 void *sc_ih; 91 bus_size_t sc_mapsize; 92 pcireg_t sc_bar_val; 93 cardbus_intr_line_t sc_intrline; 94 }; 95 96 int ral_cardbus_match(device_t, cfdata_t, void *); 97 void ral_cardbus_attach(device_t, device_t, void *); 98 int ral_cardbus_detach(device_t, int); 99 100 CFATTACH_DECL(ral_cardbus, sizeof (struct ral_cardbus_softc), 101 ral_cardbus_match, ral_cardbus_attach, ral_cardbus_detach, NULL); 102 103 int ral_cardbus_enable(struct rt2560_softc *); 104 void ral_cardbus_disable(struct rt2560_softc *); 105 void ral_cardbus_power(struct rt2560_softc *, int); 106 void ral_cardbus_setup(struct ral_cardbus_softc *); 107 108 int 109 ral_cardbus_match(device_t parent, 110 cfdata_t cfdata, void *aux) 111 { 112 struct cardbus_attach_args *ca = aux; 113 114 if (PCI_VENDOR(ca->ca_id) == PCI_VENDOR_RALINK) { 115 switch (PCI_PRODUCT(ca->ca_id)) { 116 case PCI_PRODUCT_RALINK_RT2560: 117 case PCI_PRODUCT_RALINK_RT2561: 118 case PCI_PRODUCT_RALINK_RT2561S: 119 case PCI_PRODUCT_RALINK_RT2661: 120 return 1; 121 default: 122 return 0; 123 } 124 } 125 126 return 0; 127 } 128 129 void 130 ral_cardbus_attach(device_t parent, device_t self, 131 void *aux) 132 { 133 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)self; 134 struct rt2560_softc *sc = &csc->sc_sc; 135 struct cardbus_attach_args *ca = aux; 136 cardbus_devfunc_t ct = ca->ca_ct; 137 char devinfo[256]; 138 bus_addr_t base; 139 int error, revision; 140 141 pci_devinfo(ca->ca_id, ca->ca_class, 0, devinfo, sizeof(devinfo)); 142 revision = PCI_REVISION(ca->ca_class); 143 aprint_normal(": %s (rev. 0x%02x)\n", devinfo, revision); 144 145 csc->sc_opns = 146 (CARDBUS_PRODUCT(ca->ca_id) == PCI_PRODUCT_RALINK_RT2560) ? 147 &ral_rt2560_opns : &ral_rt2661_opns; 148 149 sc->sc_dmat = ca->ca_dmat; 150 csc->sc_ct = ct; 151 csc->sc_tag = ca->ca_tag; 152 csc->sc_intrline = ca->ca_intrline; 153 154 /* power management hooks */ 155 sc->sc_enable = ral_cardbus_enable; 156 sc->sc_disable = ral_cardbus_disable; 157 158 /* map control/status registers */ 159 error = Cardbus_mapreg_map(ct, CARDBUS_BASE0_REG, 160 CARDBUS_MAPREG_TYPE_MEM, 0, &sc->sc_st, &sc->sc_sh, &base, 161 &csc->sc_mapsize); 162 if (error != 0) { 163 printf(": could not map memory space\n"); 164 return; 165 } 166 167 #if rbus 168 #else 169 (*cf->cardbus_mem_open)(cc, 0, base, base + csc->sc_mapsize); 170 #endif 171 172 csc->sc_bar_val = base | CARDBUS_MAPREG_TYPE_MEM; 173 174 /* set up the PCI configuration registers */ 175 ral_cardbus_setup(csc); 176 177 (*csc->sc_opns->attach)(sc, CARDBUS_PRODUCT(ca->ca_id)); 178 179 Cardbus_function_disable(ct); 180 } 181 182 int 183 ral_cardbus_detach(device_t self, int flags) 184 { 185 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)self; 186 struct rt2560_softc *sc = &csc->sc_sc; 187 cardbus_devfunc_t ct = csc->sc_ct; 188 cardbus_chipset_tag_t cc = ct->ct_cc; 189 cardbus_function_tag_t cf = ct->ct_cf; 190 int error; 191 192 error = (*csc->sc_opns->detach)(sc); 193 if (error != 0) 194 return error; 195 196 /* unhook the interrupt handler */ 197 if (csc->sc_ih != NULL) { 198 cardbus_intr_disestablish(cc, cf, csc->sc_ih); 199 csc->sc_ih = NULL; 200 } 201 202 /* release bus space and close window */ 203 Cardbus_mapreg_unmap(ct, CARDBUS_BASE0_REG, sc->sc_st, sc->sc_sh, 204 csc->sc_mapsize); 205 206 return 0; 207 } 208 209 int 210 ral_cardbus_enable(struct rt2560_softc *sc) 211 { 212 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc; 213 cardbus_devfunc_t ct = csc->sc_ct; 214 cardbus_chipset_tag_t cc = ct->ct_cc; 215 cardbus_function_tag_t cf = ct->ct_cf; 216 217 /* power on the socket */ 218 Cardbus_function_enable(ct); 219 220 /* setup the PCI configuration registers */ 221 ral_cardbus_setup(csc); 222 223 /* map and establish the interrupt handler */ 224 csc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, IPL_NET, 225 csc->sc_opns->intr, sc); 226 if (csc->sc_ih == NULL) { 227 aprint_error_dev(&sc->sc_dev, 228 "could not establish interrupt\n"); 229 Cardbus_function_disable(ct); 230 return 1; 231 } 232 233 return 0; 234 } 235 236 void 237 ral_cardbus_disable(struct rt2560_softc *sc) 238 { 239 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc; 240 cardbus_devfunc_t ct = csc->sc_ct; 241 cardbus_chipset_tag_t cc = ct->ct_cc; 242 cardbus_function_tag_t cf = ct->ct_cf; 243 244 /* unhook the interrupt handler */ 245 cardbus_intr_disestablish(cc, cf, csc->sc_ih); 246 csc->sc_ih = NULL; 247 248 /* power down the socket */ 249 Cardbus_function_disable(ct); 250 } 251 252 void 253 ral_cardbus_setup(struct ral_cardbus_softc *csc) 254 { 255 cardbus_devfunc_t ct = csc->sc_ct; 256 cardbus_chipset_tag_t cc = ct->ct_cc; 257 cardbus_function_tag_t cf = ct->ct_cf; 258 pcireg_t reg; 259 260 /* program the BAR */ 261 cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_BASE0_REG, 262 csc->sc_bar_val); 263 264 /* make sure the right access type is on the cardbus bridge */ 265 (*cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE); 266 (*cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE); 267 268 /* enable the appropriate bits in the PCI CSR */ 269 reg = cardbus_conf_read(cc, cf, csc->sc_tag, 270 CARDBUS_COMMAND_STATUS_REG); 271 reg |= CARDBUS_COMMAND_MASTER_ENABLE | CARDBUS_COMMAND_MEM_ENABLE; 272 cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_COMMAND_STATUS_REG, 273 reg); 274 } 275
Indexes created Tue Sep 30 17:09:57 GMT 2025