1 /* $FreeBSD$ */ 2 3 /*- 4 * Copyright (c) 2005, 2006 5 * Damien Bergamini <damien.bergamini@free.fr> 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 #include <sys/cdefs.h> 21 __FBSDID("$FreeBSD$"); 22 23 /* 24 * PCI/Cardbus front-end for the Ralink RT2560/RT2561/RT2561S/RT2661 driver. 25 */ 26 27 #include <sys/param.h> 28 #include <sys/sysctl.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/module.h> 36 #include <sys/bus.h> 37 #include <sys/endian.h> 38 39 #include <machine/bus.h> 40 #include <machine/resource.h> 41 #include <sys/rman.h> 42 43 #include <net/bpf.h> 44 #include <net/if.h> 45 #include <net/if_arp.h> 46 #include <net/ethernet.h> 47 #include <net/if_dl.h> 48 #include <net/if_media.h> 49 #include <net/if_types.h> 50 51 #include <net80211/ieee80211_var.h> 52 #include <net80211/ieee80211_radiotap.h> 53 #include <net80211/ieee80211_amrr.h> 54 55 #include <dev/pci/pcireg.h> 56 #include <dev/pci/pcivar.h> 57 58 #include <dev/ral/rt2560var.h> 59 #include <dev/ral/rt2661var.h> 60 61 MODULE_DEPEND(ral, pci, 1, 1, 1); 62 MODULE_DEPEND(ral, firmware, 1, 1, 1); 63 MODULE_DEPEND(ral, wlan, 1, 1, 1); 64 MODULE_DEPEND(ral, wlan_amrr, 1, 1, 1); 65 66 struct ral_pci_ident { 67 uint16_t vendor; 68 uint16_t device; 69 const char *name; 70 }; 71 72 static const struct ral_pci_ident ral_pci_ids[] = { 73 { 0x1814, 0x0201, "Ralink Technology RT2560" }, 74 { 0x1814, 0x0301, "Ralink Technology RT2561S" }, 75 { 0x1814, 0x0302, "Ralink Technology RT2561" }, 76 { 0x1814, 0x0401, "Ralink Technology RT2661" }, 77 78 { 0, 0, NULL } 79 }; 80 81 static struct ral_opns { 82 int (*attach)(device_t, int); 83 int (*detach)(void *); 84 void (*shutdown)(void *); 85 void (*suspend)(void *); 86 void (*resume)(void *); 87 void (*intr)(void *); 88 89 } ral_rt2560_opns = { 90 rt2560_attach, 91 rt2560_detach, 92 rt2560_stop, 93 rt2560_stop, 94 rt2560_resume, 95 rt2560_intr 96 97 }, ral_rt2661_opns = { 98 rt2661_attach, 99 rt2661_detach, 100 rt2661_shutdown, 101 rt2661_suspend, 102 rt2661_resume, 103 rt2661_intr 104 }; 105 106 struct ral_pci_softc { 107 union { 108 struct rt2560_softc sc_rt2560; 109 struct rt2661_softc sc_rt2661; 110 } u; 111 112 struct ral_opns *sc_opns; 113 int irq_rid; 114 int mem_rid; 115 struct resource *irq; 116 struct resource *mem; 117 void *sc_ih; 118 }; 119 120 static int ral_pci_probe(device_t); 121 static int ral_pci_attach(device_t); 122 static int ral_pci_detach(device_t); 123 static int ral_pci_shutdown(device_t); 124 static int ral_pci_suspend(device_t); 125 static int ral_pci_resume(device_t); 126 127 static device_method_t ral_pci_methods[] = { 128 /* Device interface */ 129 DEVMETHOD(device_probe, ral_pci_probe), 130 DEVMETHOD(device_attach, ral_pci_attach), 131 DEVMETHOD(device_detach, ral_pci_detach), 132 DEVMETHOD(device_shutdown, ral_pci_shutdown), 133 DEVMETHOD(device_suspend, ral_pci_suspend), 134 DEVMETHOD(device_resume, ral_pci_resume), 135 136 { 0, 0 } 137 }; 138 139 static driver_t ral_pci_driver = { 140 "ral", 141 ral_pci_methods, 142 sizeof (struct ral_pci_softc) 143 }; 144 145 static devclass_t ral_devclass; 146 147 DRIVER_MODULE(ral, pci, ral_pci_driver, ral_devclass, 0, 0); 148 149 static int 150 ral_pci_probe(device_t dev) 151 { 152 const struct ral_pci_ident *ident; 153 154 for (ident = ral_pci_ids; ident->name != NULL; ident++) { 155 if (pci_get_vendor(dev) == ident->vendor && 156 pci_get_device(dev) == ident->device) { 157 device_set_desc(dev, ident->name); 158 return 0; 159 } 160 } 161 return ENXIO; 162 } 163 164 /* Base Address Register */ 165 #define RAL_PCI_BAR0 0x10 166 167 static int 168 ral_pci_attach(device_t dev) 169 { 170 struct ral_pci_softc *psc = device_get_softc(dev); 171 struct rt2560_softc *sc = &psc->u.sc_rt2560; 172 int error; 173 174 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) { 175 device_printf(dev, "chip is in D%d power mode " 176 "-- setting to D0\n", pci_get_powerstate(dev)); 177 pci_set_powerstate(dev, PCI_POWERSTATE_D0); 178 } 179 180 /* enable bus-mastering */ 181 pci_enable_busmaster(dev); 182 183 psc->sc_opns = (pci_get_device(dev) == 0x0201) ? &ral_rt2560_opns : 184 &ral_rt2661_opns; 185 186 psc->mem_rid = RAL_PCI_BAR0; 187 psc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &psc->mem_rid, 188 RF_ACTIVE); 189 if (psc->mem == NULL) { 190 device_printf(dev, "could not allocate memory resource\n"); 191 return ENXIO; 192 } 193 194 sc->sc_st = rman_get_bustag(psc->mem); 195 sc->sc_sh = rman_get_bushandle(psc->mem); 196 sc->sc_invalid = 1; 197 198 psc->irq_rid = 0; 199 psc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &psc->irq_rid, 200 RF_ACTIVE | RF_SHAREABLE); 201 if (psc->irq == NULL) { 202 device_printf(dev, "could not allocate interrupt resource\n"); 203 return ENXIO; 204 } 205 206 error = (*psc->sc_opns->attach)(dev, pci_get_device(dev)); 207 if (error != 0) 208 return error; 209 210 /* 211 * Hook our interrupt after all initialization is complete. 212 */ 213 error = bus_setup_intr(dev, psc->irq, INTR_TYPE_NET | INTR_MPSAFE, 214 NULL, psc->sc_opns->intr, psc, &psc->sc_ih); 215 if (error != 0) { 216 device_printf(dev, "could not set up interrupt\n"); 217 return error; 218 } 219 sc->sc_invalid = 0; 220 221 return 0; 222 } 223 224 static int 225 ral_pci_detach(device_t dev) 226 { 227 struct ral_pci_softc *psc = device_get_softc(dev); 228 struct rt2560_softc *sc = &psc->u.sc_rt2560; 229 230 /* check if device was removed */ 231 sc->sc_invalid = !bus_child_present(dev); 232 233 (*psc->sc_opns->detach)(psc); 234 235 bus_generic_detach(dev); 236 bus_teardown_intr(dev, psc->irq, psc->sc_ih); 237 bus_release_resource(dev, SYS_RES_IRQ, psc->irq_rid, psc->irq); 238 239 bus_release_resource(dev, SYS_RES_MEMORY, psc->mem_rid, psc->mem); 240 241 return 0; 242 } 243 244 static int 245 ral_pci_shutdown(device_t dev) 246 { 247 struct ral_pci_softc *psc = device_get_softc(dev); 248 249 (*psc->sc_opns->shutdown)(psc); 250 251 return 0; 252 } 253 254 static int 255 ral_pci_suspend(device_t dev) 256 { 257 struct ral_pci_softc *psc = device_get_softc(dev); 258 259 (*psc->sc_opns->suspend)(psc); 260 261 return 0; 262 } 263 264 static int 265 ral_pci_resume(device_t dev) 266 { 267 struct ral_pci_softc *psc = device_get_softc(dev); 268 269 (*psc->sc_opns->resume)(psc); 270 271 return 0; 272 } 273