if_ral_cardbus.c revision 1.22.2.1
1 /* $NetBSD: if_ral_cardbus.c,v 1.22.2.1 2012/04/17 00:07:29 yamt 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 1.22.2.1 2012/04/17 00:07:29 yamt 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 }; 93 94 int ral_cardbus_match(device_t, cfdata_t, void *); 95 void ral_cardbus_attach(device_t, device_t, void *); 96 int ral_cardbus_detach(device_t, int); 97 98 CFATTACH_DECL_NEW(ral_cardbus, sizeof (struct ral_cardbus_softc), 99 ral_cardbus_match, ral_cardbus_attach, ral_cardbus_detach, NULL); 100 101 int ral_cardbus_enable(struct rt2560_softc *); 102 void ral_cardbus_disable(struct rt2560_softc *); 103 void ral_cardbus_power(struct rt2560_softc *, int); 104 void ral_cardbus_setup(struct ral_cardbus_softc *); 105 106 int 107 ral_cardbus_match(device_t parent, 108 cfdata_t 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(device_t parent, device_t self, 129 void *aux) 130 { 131 struct ral_cardbus_softc *csc = device_private(self); 132 struct rt2560_softc *sc = &csc->sc_sc; 133 struct cardbus_attach_args *ca = aux; 134 cardbus_devfunc_t ct = ca->ca_ct; 135 char devinfo[256]; 136 bus_addr_t base; 137 int error, revision; 138 139 pci_devinfo(ca->ca_id, ca->ca_class, 0, devinfo, sizeof(devinfo)); 140 revision = PCI_REVISION(ca->ca_class); 141 aprint_normal(": %s (rev. 0x%02x)\n", devinfo, revision); 142 143 csc->sc_opns = 144 (PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_RALINK_RT2560) ? 145 &ral_rt2560_opns : &ral_rt2661_opns; 146 147 sc->sc_dev = self; 148 sc->sc_dmat = ca->ca_dmat; 149 csc->sc_ct = ct; 150 csc->sc_tag = ca->ca_tag; 151 152 /* power management hooks */ 153 sc->sc_enable = ral_cardbus_enable; 154 sc->sc_disable = ral_cardbus_disable; 155 156 /* map control/status registers */ 157 error = Cardbus_mapreg_map(ct, PCI_BAR0, 158 PCI_MAPREG_TYPE_MEM, 0, &sc->sc_st, &sc->sc_sh, &base, 159 &csc->sc_mapsize); 160 if (error != 0) { 161 printf(": could not map memory space\n"); 162 return; 163 } 164 165 csc->sc_bar_val = base | PCI_MAPREG_TYPE_MEM; 166 167 /* set up the PCI configuration registers */ 168 ral_cardbus_setup(csc); 169 170 (*csc->sc_opns->attach)(sc, PCI_PRODUCT(ca->ca_id)); 171 172 Cardbus_function_disable(ct); 173 } 174 175 int 176 ral_cardbus_detach(device_t self, int flags) 177 { 178 struct ral_cardbus_softc *csc = device_private(self); 179 struct rt2560_softc *sc = &csc->sc_sc; 180 cardbus_devfunc_t ct = csc->sc_ct; 181 int error; 182 183 error = (*csc->sc_opns->detach)(sc); 184 if (error != 0) 185 return error; 186 187 /* unhook the interrupt handler */ 188 if (csc->sc_ih != NULL) { 189 Cardbus_intr_disestablish(ct, csc->sc_ih); 190 csc->sc_ih = NULL; 191 } 192 193 /* release bus space and close window */ 194 Cardbus_mapreg_unmap(ct, PCI_BAR0, sc->sc_st, sc->sc_sh, 195 csc->sc_mapsize); 196 197 return 0; 198 } 199 200 int 201 ral_cardbus_enable(struct rt2560_softc *sc) 202 { 203 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc; 204 cardbus_devfunc_t ct = csc->sc_ct; 205 206 /* power on the socket */ 207 Cardbus_function_enable(ct); 208 209 /* setup the PCI configuration registers */ 210 ral_cardbus_setup(csc); 211 212 /* map and establish the interrupt handler */ 213 csc->sc_ih = Cardbus_intr_establish(ct, IPL_NET, 214 csc->sc_opns->intr, sc); 215 if (csc->sc_ih == NULL) { 216 aprint_error_dev(sc->sc_dev, 217 "could not establish interrupt\n"); 218 Cardbus_function_disable(ct); 219 return 1; 220 } 221 222 return 0; 223 } 224 225 void 226 ral_cardbus_disable(struct rt2560_softc *sc) 227 { 228 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc; 229 cardbus_devfunc_t ct = csc->sc_ct; 230 231 /* unhook the interrupt handler */ 232 Cardbus_intr_disestablish(ct, csc->sc_ih); 233 csc->sc_ih = NULL; 234 235 /* power down the socket */ 236 Cardbus_function_disable(ct); 237 } 238 239 void 240 ral_cardbus_setup(struct ral_cardbus_softc *csc) 241 { 242 cardbus_devfunc_t ct = csc->sc_ct; 243 pcireg_t reg; 244 245 /* program the BAR */ 246 Cardbus_conf_write(ct, csc->sc_tag, PCI_BAR0, csc->sc_bar_val); 247 248 /* enable the appropriate bits in the PCI CSR */ 249 reg = Cardbus_conf_read(ct, csc->sc_tag, PCI_COMMAND_STATUS_REG); 250 reg |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_MEM_ENABLE; 251 Cardbus_conf_write(ct, csc->sc_tag, PCI_COMMAND_STATUS_REG, reg); 252 } 253
Indexes created Thu Oct 23 22:10:10 GMT 2025