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 1.2 2006/08/01 18:06:44 swildner 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/endian.h> 36 37 #include <machine/bus.h> 38 #include <machine/resource.h> 39 #include <sys/rman.h> 40 41 #include <net/bpf.h> 42 #include <net/if.h> 43 #include <net/if_arp.h> 44 #include <net/ethernet.h> 45 #include <net/if_dl.h> 46 #include <net/if_media.h> 47 #include <net/if_types.h> 48 49 #include <netproto/802_11/ieee80211_var.h> 50 #include <netproto/802_11/ieee80211_radiotap.h> 51 52 #include <bus/pci/pcidevs.h> 53 #include <bus/pci/pcireg.h> 54 #include <bus/pci/pcivar.h> 55 56 #include <dev/netif/ral/if_ralrate.h> 57 #include <dev/netif/ral/rt2560var.h> 58 #include <dev/netif/ral/rt2661var.h> 59 60 struct ral_opns { 61 int (*attach)(device_t, int); 62 int (*detach)(void *); 63 void (*shutdown)(void *); 64 void (*suspend)(void *); 65 void (*resume)(void *); 66 }; 67 68 static const struct ral_opns ral_rt2560_opns = { 69 .attach = rt2560_attach, 70 .detach = rt2560_detach, 71 .shutdown = rt2560_shutdown, 72 .suspend = rt2560_suspend, 73 .resume = rt2560_resume, 74 }; 75 76 static const struct ral_opns ral_rt2661_opns = { 77 .attach = rt2661_attach, 78 .detach = rt2661_detach, 79 .shutdown = rt2661_shutdown, 80 .suspend = rt2661_suspend, 81 .resume = rt2661_resume, 82 }; 83 84 static const struct ral_pci_ident { 85 uint16_t vendor; 86 uint16_t device; 87 const char *name; 88 const struct ral_opns *opns; 89 } ral_pci_ids[] = { 90 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2560, 91 "Ralink Technology RT2560", &ral_rt2560_opns }, 92 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2561S, 93 "Ralink Technology RT2561S", &ral_rt2661_opns }, 94 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2561, 95 "Ralink Technology RT2561", &ral_rt2661_opns }, 96 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2661, 97 "Ralink Technology RT2661", &ral_rt2661_opns }, 98 { 0, 0, NULL, NULL } 99 }; 100 101 struct ral_pci_softc { 102 /* XXX MUST be the first field */ 103 union { 104 struct rt2560_softc sc_rt2560; 105 struct rt2661_softc sc_rt2661; 106 } u; 107 108 const struct ral_opns *sc_opns; 109 int mem_rid; 110 struct resource *mem; 111 }; 112 113 static int ral_pci_probe(device_t); 114 static int ral_pci_attach(device_t); 115 static int ral_pci_detach(device_t); 116 static int ral_pci_shutdown(device_t); 117 static int ral_pci_suspend(device_t); 118 static int ral_pci_resume(device_t); 119 120 static device_method_t ral_pci_methods[] = { 121 /* Device interface */ 122 DEVMETHOD(device_probe, ral_pci_probe), 123 DEVMETHOD(device_attach, ral_pci_attach), 124 DEVMETHOD(device_detach, ral_pci_detach), 125 DEVMETHOD(device_shutdown, ral_pci_shutdown), 126 DEVMETHOD(device_suspend, ral_pci_suspend), 127 DEVMETHOD(device_resume, ral_pci_resume), 128 129 { 0, 0 } 130 }; 131 132 static driver_t ral_pci_driver = { 133 "ral", 134 ral_pci_methods, 135 sizeof (struct ral_pci_softc) 136 }; 137 138 static devclass_t ral_devclass; 139 140 DRIVER_MODULE(ral, pci, ral_pci_driver, ral_devclass, 0, 0); 141 DRIVER_MODULE(ral, cardbus, ral_pci_driver, ral_devclass, 0, 0); 142 143 MODULE_DEPEND(ral, wlan, 1, 1, 1); 144 MODULE_DEPEND(ral, pci, 1, 1, 1); 145 MODULE_DEPEND(ral, cardbus, 1, 1, 1); 146 147 static int 148 ral_pci_probe(device_t dev) 149 { 150 const struct ral_pci_ident *ident; 151 uint16_t vid, did; 152 153 vid = pci_get_vendor(dev); 154 did = pci_get_device(dev); 155 for (ident = ral_pci_ids; ident->name != NULL; ident++) { 156 if (vid == ident->vendor && did == ident->device) { 157 struct ral_pci_softc *psc = device_get_softc(dev); 158 159 psc->sc_opns = ident->opns; 160 device_set_desc(dev, ident->name); 161 return 0; 162 } 163 } 164 return ENXIO; 165 } 166 167 /* Base Address Register */ 168 #define RAL_PCI_BAR0 0x10 169 170 static int 171 ral_pci_attach(device_t dev) 172 { 173 struct ral_pci_softc *psc = device_get_softc(dev); 174 struct rt2560_softc *sc = &psc->u.sc_rt2560; 175 int error; 176 177 /* Assign `dev' earlier, so that we can do possible error clean up */ 178 sc->sc_dev = dev; 179 180 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) { 181 device_printf(dev, "chip is in D%d power mode " 182 "-- setting to D0\n", pci_get_powerstate(dev)); 183 pci_set_powerstate(dev, PCI_POWERSTATE_D0); 184 } 185 186 /* enable bus-mastering */ 187 pci_enable_busmaster(dev); 188 189 psc->mem_rid = RAL_PCI_BAR0; 190 psc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &psc->mem_rid, 191 RF_ACTIVE); 192 if (psc->mem == NULL) { 193 device_printf(dev, "could not allocate memory resource\n"); 194 return ENXIO; 195 } 196 sc->sc_st = rman_get_bustag(psc->mem); 197 sc->sc_sh = rman_get_bushandle(psc->mem); 198 199 error = psc->sc_opns->attach(dev, pci_get_device(dev)); 200 if (error != 0) 201 ral_pci_detach(dev); 202 203 return error; 204 } 205 206 static int 207 ral_pci_detach(device_t dev) 208 { 209 struct ral_pci_softc *psc = device_get_softc(dev); 210 211 if (device_is_attached(dev)) 212 psc->sc_opns->detach(psc); 213 214 bus_generic_detach(dev); 215 216 if (psc->mem != NULL) { 217 bus_release_resource(dev, SYS_RES_MEMORY, psc->mem_rid, 218 psc->mem); 219 } 220 return 0; 221 } 222 223 static int 224 ral_pci_shutdown(device_t dev) 225 { 226 struct ral_pci_softc *psc = device_get_softc(dev); 227 228 psc->sc_opns->shutdown(psc); 229 return 0; 230 } 231 232 static int 233 ral_pci_suspend(device_t dev) 234 { 235 struct ral_pci_softc *psc = device_get_softc(dev); 236 237 psc->sc_opns->suspend(psc); 238 return 0; 239 } 240 241 static int 242 ral_pci_resume(device_t dev) 243 { 244 struct ral_pci_softc *psc = device_get_softc(dev); 245 246 psc->sc_opns->resume(psc); 247 return 0; 248 } 249