1 /* 2 * Copyright (c) 2005, 2006 3 * Damien Bergamini <damien.bergamini@free.fr> 4 * 5 * Permission to use, copy, modify, and distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 * 17 * $FreeBSD: src/sys/dev/ral/if_ral_pci.c,v 1.4 2006/03/05 23:27:51 silby Exp $ 18 * $DragonFly: src/sys/dev/netif/ral/if_ral_pci.c,v 1.3 2006/10/25 20:55:58 dillon Exp $ 19 */ 20 21 /* 22 * PCI/Cardbus front-end for the Ralink RT2560/RT2561/RT2561S/RT2661 driver. 23 */ 24 25 #include <sys/param.h> 26 #include <sys/sysctl.h> 27 #include <sys/sockio.h> 28 #include <sys/mbuf.h> 29 #include <sys/kernel.h> 30 #include <sys/socket.h> 31 #include <sys/systm.h> 32 #include <sys/malloc.h> 33 #include <sys/module.h> 34 #include <sys/bus.h> 35 #include <sys/rman.h> 36 #include <sys/endian.h> 37 38 #include <net/bpf.h> 39 #include <net/if.h> 40 #include <net/if_arp.h> 41 #include <net/ethernet.h> 42 #include <net/if_dl.h> 43 #include <net/if_media.h> 44 #include <net/if_types.h> 45 46 #include <netproto/802_11/ieee80211_var.h> 47 #include <netproto/802_11/ieee80211_radiotap.h> 48 49 #include <bus/pci/pcidevs.h> 50 #include <bus/pci/pcireg.h> 51 #include <bus/pci/pcivar.h> 52 53 #include <dev/netif/ral/if_ralrate.h> 54 #include <dev/netif/ral/rt2560var.h> 55 #include <dev/netif/ral/rt2661var.h> 56 57 struct ral_opns { 58 int (*attach)(device_t, int); 59 int (*detach)(void *); 60 void (*shutdown)(void *); 61 void (*suspend)(void *); 62 void (*resume)(void *); 63 }; 64 65 static const struct ral_opns ral_rt2560_opns = { 66 .attach = rt2560_attach, 67 .detach = rt2560_detach, 68 .shutdown = rt2560_shutdown, 69 .suspend = rt2560_suspend, 70 .resume = rt2560_resume, 71 }; 72 73 static const struct ral_opns ral_rt2661_opns = { 74 .attach = rt2661_attach, 75 .detach = rt2661_detach, 76 .shutdown = rt2661_shutdown, 77 .suspend = rt2661_suspend, 78 .resume = rt2661_resume, 79 }; 80 81 static const struct ral_pci_ident { 82 uint16_t vendor; 83 uint16_t device; 84 const char *name; 85 const struct ral_opns *opns; 86 } ral_pci_ids[] = { 87 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2560, 88 "Ralink Technology RT2560", &ral_rt2560_opns }, 89 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2561S, 90 "Ralink Technology RT2561S", &ral_rt2661_opns }, 91 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2561, 92 "Ralink Technology RT2561", &ral_rt2661_opns }, 93 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2661, 94 "Ralink Technology RT2661", &ral_rt2661_opns }, 95 { 0, 0, NULL, NULL } 96 }; 97 98 struct ral_pci_softc { 99 /* XXX MUST be the first field */ 100 union { 101 struct rt2560_softc sc_rt2560; 102 struct rt2661_softc sc_rt2661; 103 } u; 104 105 const struct ral_opns *sc_opns; 106 int mem_rid; 107 struct resource *mem; 108 }; 109 110 static int ral_pci_probe(device_t); 111 static int ral_pci_attach(device_t); 112 static int ral_pci_detach(device_t); 113 static int ral_pci_shutdown(device_t); 114 static int ral_pci_suspend(device_t); 115 static int ral_pci_resume(device_t); 116 117 static device_method_t ral_pci_methods[] = { 118 /* Device interface */ 119 DEVMETHOD(device_probe, ral_pci_probe), 120 DEVMETHOD(device_attach, ral_pci_attach), 121 DEVMETHOD(device_detach, ral_pci_detach), 122 DEVMETHOD(device_shutdown, ral_pci_shutdown), 123 DEVMETHOD(device_suspend, ral_pci_suspend), 124 DEVMETHOD(device_resume, ral_pci_resume), 125 126 { 0, 0 } 127 }; 128 129 static driver_t ral_pci_driver = { 130 "ral", 131 ral_pci_methods, 132 sizeof (struct ral_pci_softc) 133 }; 134 135 static devclass_t ral_devclass; 136 137 DRIVER_MODULE(ral, pci, ral_pci_driver, ral_devclass, 0, 0); 138 DRIVER_MODULE(ral, cardbus, ral_pci_driver, ral_devclass, 0, 0); 139 140 MODULE_DEPEND(ral, wlan, 1, 1, 1); 141 MODULE_DEPEND(ral, pci, 1, 1, 1); 142 MODULE_DEPEND(ral, cardbus, 1, 1, 1); 143 144 static int 145 ral_pci_probe(device_t dev) 146 { 147 const struct ral_pci_ident *ident; 148 uint16_t vid, did; 149 150 vid = pci_get_vendor(dev); 151 did = pci_get_device(dev); 152 for (ident = ral_pci_ids; ident->name != NULL; ident++) { 153 if (vid == ident->vendor && did == ident->device) { 154 struct ral_pci_softc *psc = device_get_softc(dev); 155 156 psc->sc_opns = ident->opns; 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 /* Assign `dev' earlier, so that we can do possible error clean up */ 175 sc->sc_dev = dev; 176 177 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) { 178 device_printf(dev, "chip is in D%d power mode " 179 "-- setting to D0\n", pci_get_powerstate(dev)); 180 pci_set_powerstate(dev, PCI_POWERSTATE_D0); 181 } 182 183 /* enable bus-mastering */ 184 pci_enable_busmaster(dev); 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 sc->sc_st = rman_get_bustag(psc->mem); 194 sc->sc_sh = rman_get_bushandle(psc->mem); 195 196 error = psc->sc_opns->attach(dev, pci_get_device(dev)); 197 if (error != 0) 198 ral_pci_detach(dev); 199 200 return error; 201 } 202 203 static int 204 ral_pci_detach(device_t dev) 205 { 206 struct ral_pci_softc *psc = device_get_softc(dev); 207 208 if (device_is_attached(dev)) 209 psc->sc_opns->detach(psc); 210 211 bus_generic_detach(dev); 212 213 if (psc->mem != NULL) { 214 bus_release_resource(dev, SYS_RES_MEMORY, psc->mem_rid, 215 psc->mem); 216 } 217 return 0; 218 } 219 220 static int 221 ral_pci_shutdown(device_t dev) 222 { 223 struct ral_pci_softc *psc = device_get_softc(dev); 224 225 psc->sc_opns->shutdown(psc); 226 return 0; 227 } 228 229 static int 230 ral_pci_suspend(device_t dev) 231 { 232 struct ral_pci_softc *psc = device_get_softc(dev); 233 234 psc->sc_opns->suspend(psc); 235 return 0; 236 } 237 238 static int 239 ral_pci_resume(device_t dev) 240 { 241 struct ral_pci_softc *psc = device_get_softc(dev); 242 243 psc->sc_opns->resume(psc); 244 return 0; 245 } 246