if_ral_cardbus.c revision 1.20
1 /* $NetBSD: if_ral_cardbus.c,v 1.20 2010/02/26 00:57:02 dyoung 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 1.20 2010/02/26 00:57:02 dyoung Exp $"); 26 27 28 #include <sys/param.h> 29 #include <sys/sockio.h> 30 #include <sys/mbuf.h> 31 #include <sys/kernel.h> 32 #include <sys/socket.h> 33 #include <sys/systm.h> 34 #include <sys/malloc.h> 35 #include <sys/callout.h> 36 #include <sys/device.h> 37 38 #include <sys/bus.h> 39 #include <sys/intr.h> 40 41 #include <net/if.h> 42 #include <net/if_dl.h> 43 #include <net/if_media.h> 44 #include <net/if_ether.h> 45 46 #include <netinet/in.h> 47 48 #include <net80211/ieee80211_var.h> 49 #include <net80211/ieee80211_amrr.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 pcitag_t sc_tag; 89 void *sc_ih; 90 bus_size_t sc_mapsize; 91 pcireg_t sc_bar_val; 92 cardbus_intr_line_t sc_intrline; 93 }; 94 95 int ral_cardbus_match(device_t, cfdata_t, void *); 96 void ral_cardbus_attach(device_t, device_t, void *); 97 int ral_cardbus_detach(device_t, 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(device_t parent, 109 cfdata_t cfdata, void *aux) 110 { 111 struct cardbus_attach_args *ca = aux; 112 113 if (PCI_VENDOR(ca->ca_id) == PCI_VENDOR_RALINK) { 114 switch (PCI_PRODUCT(ca->ca_id)) { 115 case PCI_PRODUCT_RALINK_RT2560: 116 case PCI_PRODUCT_RALINK_RT2561: 117 case PCI_PRODUCT_RALINK_RT2561S: 118 case PCI_PRODUCT_RALINK_RT2661: 119 return 1; 120 default: 121 return 0; 122 } 123 } 124 125 return 0; 126 } 127 128 void 129 ral_cardbus_attach(device_t parent, device_t self, 130 void *aux) 131 { 132 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)self; 133 struct rt2560_softc *sc = &csc->sc_sc; 134 struct cardbus_attach_args *ca = aux; 135 cardbus_devfunc_t ct = ca->ca_ct; 136 char devinfo[256]; 137 bus_addr_t base; 138 int error, revision; 139 140 pci_devinfo(ca->ca_id, ca->ca_class, 0, devinfo, sizeof(devinfo)); 141 revision = PCI_REVISION(ca->ca_class); 142 aprint_normal(": %s (rev. 0x%02x)\n", devinfo, revision); 143 144 csc->sc_opns = 145 (PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_RALINK_RT2560) ? 146 &ral_rt2560_opns : &ral_rt2661_opns; 147 148 sc->sc_dmat = ca->ca_dmat; 149 csc->sc_ct = ct; 150 csc->sc_tag = ca->ca_tag; 151 csc->sc_intrline = ca->ca_intrline; 152 153 /* power management hooks */ 154 sc->sc_enable = ral_cardbus_enable; 155 sc->sc_disable = ral_cardbus_disable; 156 157 /* map control/status registers */ 158 error = Cardbus_mapreg_map(ct, PCI_BAR0, 159 PCI_MAPREG_TYPE_MEM, 0, &sc->sc_st, &sc->sc_sh, &base, 160 &csc->sc_mapsize); 161 if (error != 0) { 162 printf(": could not map memory space\n"); 163 return; 164 } 165 166 #if rbus 167 #else 168 (*cf->cardbus_mem_open)(cc, 0, base, base + csc->sc_mapsize); 169 #endif 170 171 csc->sc_bar_val = base | PCI_MAPREG_TYPE_MEM; 172 173 /* set up the PCI configuration registers */ 174 ral_cardbus_setup(csc); 175 176 (*csc->sc_opns->attach)(sc, PCI_PRODUCT(ca->ca_id)); 177 178 Cardbus_function_disable(ct); 179 } 180 181 int 182 ral_cardbus_detach(device_t self, int flags) 183 { 184 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)self; 185 struct rt2560_softc *sc = &csc->sc_sc; 186 cardbus_devfunc_t ct = csc->sc_ct; 187 cardbus_chipset_tag_t cc = ct->ct_cc; 188 cardbus_function_tag_t cf = ct->ct_cf; 189 int error; 190 191 error = (*csc->sc_opns->detach)(sc); 192 if (error != 0) 193 return error; 194 195 /* unhook the interrupt handler */ 196 if (csc->sc_ih != NULL) { 197 cardbus_intr_disestablish(cc, cf, csc->sc_ih); 198 csc->sc_ih = NULL; 199 } 200 201 /* release bus space and close window */ 202 Cardbus_mapreg_unmap(ct, PCI_BAR0, sc->sc_st, sc->sc_sh, 203 csc->sc_mapsize); 204 205 return 0; 206 } 207 208 int 209 ral_cardbus_enable(struct rt2560_softc *sc) 210 { 211 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc; 212 cardbus_devfunc_t ct = csc->sc_ct; 213 cardbus_chipset_tag_t cc = ct->ct_cc; 214 cardbus_function_tag_t cf = ct->ct_cf; 215 216 /* power on the socket */ 217 Cardbus_function_enable(ct); 218 219 /* setup the PCI configuration registers */ 220 ral_cardbus_setup(csc); 221 222 /* map and establish the interrupt handler */ 223 csc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, IPL_NET, 224 csc->sc_opns->intr, sc); 225 if (csc->sc_ih == NULL) { 226 aprint_error_dev(&sc->sc_dev, 227 "could not establish interrupt\n"); 228 Cardbus_function_disable(ct); 229 return 1; 230 } 231 232 return 0; 233 } 234 235 void 236 ral_cardbus_disable(struct rt2560_softc *sc) 237 { 238 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc; 239 cardbus_devfunc_t ct = csc->sc_ct; 240 cardbus_chipset_tag_t cc = ct->ct_cc; 241 cardbus_function_tag_t cf = ct->ct_cf; 242 243 /* unhook the interrupt handler */ 244 cardbus_intr_disestablish(cc, cf, csc->sc_ih); 245 csc->sc_ih = NULL; 246 247 /* power down the socket */ 248 Cardbus_function_disable(ct); 249 } 250 251 void 252 ral_cardbus_setup(struct ral_cardbus_softc *csc) 253 { 254 cardbus_devfunc_t ct = csc->sc_ct; 255 pcireg_t reg; 256 257 /* program the BAR */ 258 Cardbus_conf_write(ct, csc->sc_tag, PCI_BAR0, csc->sc_bar_val); 259 260 /* enable the appropriate bits in the PCI CSR */ 261 reg = Cardbus_conf_read(ct, csc->sc_tag, PCI_COMMAND_STATUS_REG); 262 reg |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_MEM_ENABLE; 263 Cardbus_conf_write(ct, csc->sc_tag, PCI_COMMAND_STATUS_REG, reg); 264 } 265
Indexes created Tue Sep 30 11:09:46 GMT 2025