1 /* $NetBSD: if_ral_cardbus.c,v 1.21 2010/03/18 20:51:42 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@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 1.21 2010/03/18 20:51:42 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 csc->sc_bar_val = base | PCI_MAPREG_TYPE_MEM; 167 168 /* set up the PCI configuration registers */ 169 ral_cardbus_setup(csc); 170 171 (*csc->sc_opns->attach)(sc, PCI_PRODUCT(ca->ca_id)); 172 173 Cardbus_function_disable(ct); 174 } 175 176 int 177 ral_cardbus_detach(device_t self, int flags) 178 { 179 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)self; 180 struct rt2560_softc *sc = &csc->sc_sc; 181 cardbus_devfunc_t ct = csc->sc_ct; 182 int error; 183 184 error = (*csc->sc_opns->detach)(sc); 185 if (error != 0) 186 return error; 187 188 /* unhook the interrupt handler */ 189 if (csc->sc_ih != NULL) { 190 Cardbus_intr_disestablish(ct, csc->sc_ih); 191 csc->sc_ih = NULL; 192 } 193 194 /* release bus space and close window */ 195 Cardbus_mapreg_unmap(ct, PCI_BAR0, sc->sc_st, sc->sc_sh, 196 csc->sc_mapsize); 197 198 return 0; 199 } 200 201 int 202 ral_cardbus_enable(struct rt2560_softc *sc) 203 { 204 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc; 205 cardbus_devfunc_t ct = csc->sc_ct; 206 207 /* power on the socket */ 208 Cardbus_function_enable(ct); 209 210 /* setup the PCI configuration registers */ 211 ral_cardbus_setup(csc); 212 213 /* map and establish the interrupt handler */ 214 csc->sc_ih = Cardbus_intr_establish(ct, csc->sc_intrline, IPL_NET, 215 csc->sc_opns->intr, sc); 216 if (csc->sc_ih == NULL) { 217 aprint_error_dev(&sc->sc_dev, 218 "could not establish interrupt\n"); 219 Cardbus_function_disable(ct); 220 return 1; 221 } 222 223 return 0; 224 } 225 226 void 227 ral_cardbus_disable(struct rt2560_softc *sc) 228 { 229 struct ral_cardbus_softc *csc = (struct ral_cardbus_softc *)sc; 230 cardbus_devfunc_t ct = csc->sc_ct; 231 232 /* unhook the interrupt handler */ 233 Cardbus_intr_disestablish(ct, csc->sc_ih); 234 csc->sc_ih = NULL; 235 236 /* power down the socket */ 237 Cardbus_function_disable(ct); 238 } 239 240 void 241 ral_cardbus_setup(struct ral_cardbus_softc *csc) 242 { 243 cardbus_devfunc_t ct = csc->sc_ct; 244 pcireg_t reg; 245 246 /* program the BAR */ 247 Cardbus_conf_write(ct, csc->sc_tag, PCI_BAR0, csc->sc_bar_val); 248 249 /* enable the appropriate bits in the PCI CSR */ 250 reg = Cardbus_conf_read(ct, csc->sc_tag, PCI_COMMAND_STATUS_REG); 251 reg |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_MEM_ENABLE; 252 Cardbus_conf_write(ct, csc->sc_tag, PCI_COMMAND_STATUS_REG, reg); 253 } 254