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 1.5 2007/04/02 14:25:38 sephe 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/rt2560var.h> 54 #include <dev/netif/ral/rt2661var.h> 55 56 struct ral_opns { 57 int (*attach)(device_t, int); 58 int (*detach)(void *); 59 void (*shutdown)(void *); 60 void (*suspend)(void *); 61 void (*resume)(void *); 62 }; 63 64 static const struct ral_opns ral_rt2560_opns = { 65 .attach = rt2560_attach, 66 .detach = rt2560_detach, 67 .shutdown = rt2560_shutdown, 68 .suspend = rt2560_suspend, 69 .resume = rt2560_resume, 70 }; 71 72 static const struct ral_opns ral_rt2661_opns = { 73 .attach = rt2661_attach, 74 .detach = rt2661_detach, 75 .shutdown = rt2661_shutdown, 76 .suspend = rt2661_suspend, 77 .resume = rt2661_resume, 78 }; 79 80 static const struct ral_pci_ident { 81 uint16_t vendor; 82 uint16_t device; 83 const char *name; 84 const struct ral_opns *opns; 85 } ral_pci_ids[] = { 86 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2560, 87 "Ralink Technology RT2560", &ral_rt2560_opns }, 88 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2561S, 89 "Ralink Technology RT2561S", &ral_rt2661_opns }, 90 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2561, 91 "Ralink Technology RT2561", &ral_rt2661_opns }, 92 { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2661, 93 "Ralink Technology RT2661", &ral_rt2661_opns }, 94 { 0, 0, NULL, NULL } 95 }; 96 97 struct ral_pci_softc { 98 /* XXX MUST be the first field */ 99 union { 100 struct rt2560_softc sc_rt2560; 101 struct rt2661_softc sc_rt2661; 102 } u; 103 104 const struct ral_opns *sc_opns; 105 int mem_rid; 106 struct resource *mem; 107 }; 108 109 static int ral_pci_probe(device_t); 110 static int ral_pci_attach(device_t); 111 static int ral_pci_detach(device_t); 112 static int ral_pci_shutdown(device_t); 113 static int ral_pci_suspend(device_t); 114 static int ral_pci_resume(device_t); 115 116 static device_method_t ral_pci_methods[] = { 117 /* Device interface */ 118 DEVMETHOD(device_probe, ral_pci_probe), 119 DEVMETHOD(device_attach, ral_pci_attach), 120 DEVMETHOD(device_detach, ral_pci_detach), 121 DEVMETHOD(device_shutdown, ral_pci_shutdown), 122 DEVMETHOD(device_suspend, ral_pci_suspend), 123 DEVMETHOD(device_resume, ral_pci_resume), 124 125 { 0, 0 } 126 }; 127 128 static driver_t ral_pci_driver = { 129 "ral", 130 ral_pci_methods, 131 sizeof (struct ral_pci_softc) 132 }; 133 134 static devclass_t ral_devclass; 135 136 DRIVER_MODULE(ral, pci, ral_pci_driver, ral_devclass, 0, 0); 137 DRIVER_MODULE(ral, cardbus, ral_pci_driver, ral_devclass, 0, 0); 138 139 MODULE_DEPEND(ral, wlan, 1, 1, 1); 140 MODULE_DEPEND(ral, wlan_ratectl_onoe, 1, 1, 1); 141 MODULE_DEPEND(ral, wlan_ratectl_sample, 1, 1, 1); 142 MODULE_DEPEND(ral, pci, 1, 1, 1); 143 MODULE_DEPEND(ral, cardbus, 1, 1, 1); 144 145 static int 146 ral_pci_probe(device_t dev) 147 { 148 const struct ral_pci_ident *ident; 149 uint16_t vid, did; 150 151 vid = pci_get_vendor(dev); 152 did = pci_get_device(dev); 153 for (ident = ral_pci_ids; ident->name != NULL; ident++) { 154 if (vid == ident->vendor && did == ident->device) { 155 struct ral_pci_softc *psc = device_get_softc(dev); 156 157 psc->sc_opns = ident->opns; 158 device_set_desc(dev, ident->name); 159 return 0; 160 } 161 } 162 return ENXIO; 163 } 164 165 /* Base Address Register */ 166 #define RAL_PCI_BAR0 0x10 167 168 static int 169 ral_pci_attach(device_t dev) 170 { 171 struct ral_pci_softc *psc = device_get_softc(dev); 172 struct rt2560_softc *sc = &psc->u.sc_rt2560; 173 int error; 174 175 /* Assign `dev' earlier, so that we can do possible error clean up */ 176 sc->sc_dev = dev; 177 178 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) { 179 device_printf(dev, "chip is in D%d power mode " 180 "-- setting to D0\n", pci_get_powerstate(dev)); 181 pci_set_powerstate(dev, PCI_POWERSTATE_D0); 182 } 183 184 /* enable bus-mastering */ 185 pci_enable_busmaster(dev); 186 187 psc->mem_rid = RAL_PCI_BAR0; 188 psc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &psc->mem_rid, 189 RF_ACTIVE); 190 if (psc->mem == NULL) { 191 device_printf(dev, "could not allocate memory resource\n"); 192 return ENXIO; 193 } 194 sc->sc_st = rman_get_bustag(psc->mem); 195 sc->sc_sh = rman_get_bushandle(psc->mem); 196 197 error = psc->sc_opns->attach(dev, pci_get_device(dev)); 198 if (error != 0) 199 ral_pci_detach(dev); 200 201 return error; 202 } 203 204 static int 205 ral_pci_detach(device_t dev) 206 { 207 struct ral_pci_softc *psc = device_get_softc(dev); 208 209 if (device_is_attached(dev)) 210 psc->sc_opns->detach(psc); 211 212 bus_generic_detach(dev); 213 214 if (psc->mem != NULL) { 215 bus_release_resource(dev, SYS_RES_MEMORY, psc->mem_rid, 216 psc->mem); 217 } 218 return 0; 219 } 220 221 static int 222 ral_pci_shutdown(device_t dev) 223 { 224 struct ral_pci_softc *psc = device_get_softc(dev); 225 226 psc->sc_opns->shutdown(psc); 227 return 0; 228 } 229 230 static int 231 ral_pci_suspend(device_t dev) 232 { 233 struct ral_pci_softc *psc = device_get_softc(dev); 234 235 psc->sc_opns->suspend(psc); 236 return 0; 237 } 238 239 static int 240 ral_pci_resume(device_t dev) 241 { 242 struct ral_pci_softc *psc = device_get_softc(dev); 243 244 psc->sc_opns->resume(psc); 245 return 0; 246 } 247