1 /*- 2 * Copyright (c) 2007-2009 Sam Leffler, Errno Consulting 3 * Copyright (c) 2007-2009 Marvell Semiconductor, Inc. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer, 11 * without modification. 12 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 13 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any 14 * redistribution must be conditioned upon including a substantially 15 * similar Disclaimer requirement for further binary redistribution. 16 * 17 * NO WARRANTY 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY 21 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 22 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, 23 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 26 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 28 * THE POSSIBILITY OF SUCH DAMAGES. 29 */ 30 31 #include <sys/cdefs.h> 32 #ifdef __FreeBSD__ 33 __FBSDID("$FreeBSD$"); 34 #endif 35 36 /* 37 * PCI front-end for the Marvell Wireless LAN controller driver. 38 */ 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/module.h> 43 #include <sys/kernel.h> 44 #include <sys/lock.h> 45 #include <sys/malloc.h> 46 #include <sys/mutex.h> 47 #include <sys/errno.h> 48 49 #include <machine/bus.h> 50 #include <machine/resource.h> 51 #include <sys/bus.h> 52 #include <sys/rman.h> 53 54 #include <sys/socket.h> 55 56 #include <net/ethernet.h> 57 #include <net/if.h> 58 #include <net/if_media.h> 59 #include <net/if_arp.h> 60 #include <net/route.h> 61 62 #include <net80211/ieee80211_var.h> 63 64 #include <dev/mwl/if_mwlvar.h> 65 66 #include <dev/pci/pcivar.h> 67 #include <dev/pci/pcireg.h> 68 69 /* 70 * PCI glue. 71 */ 72 73 struct mwl_pci_softc { 74 struct mwl_softc sc_sc; 75 struct resource *sc_sr0; /* BAR0 memory resource */ 76 struct resource *sc_sr1; /* BAR1 memory resource */ 77 struct resource *sc_irq; /* irq resource */ 78 void *sc_ih; /* interrupt handler */ 79 }; 80 81 #define BS_BAR0 0x10 82 #define BS_BAR1 0x14 83 84 struct mwl_pci_ident { 85 uint16_t vendor; 86 uint16_t device; 87 const char *name; 88 }; 89 90 static const struct mwl_pci_ident mwl_pci_ids[] = { 91 { 0x11ab, 0x2a02, "Marvell 88W8363" }, 92 { 0x11ab, 0x2a03, "Marvell 88W8363" }, 93 { 0x11ab, 0x2a0a, "Marvell 88W8363" }, 94 { 0x11ab, 0x2a0b, "Marvell 88W8363" }, 95 { 0x11ab, 0x2a0c, "Marvell 88W8363" }, 96 { 0x11ab, 0x2a21, "Marvell 88W8363" }, 97 { 0x11ab, 0x2a24, "Marvell 88W8363" }, 98 99 { 0, 0, NULL } 100 }; 101 102 const static struct mwl_pci_ident * 103 mwl_pci_lookup(int vendor, int device) 104 { 105 const struct mwl_pci_ident *ident; 106 107 for (ident = mwl_pci_ids; ident->name != NULL; ident++) 108 if (vendor == ident->vendor && device == ident->device) 109 return ident; 110 return NULL; 111 } 112 113 static int 114 mwl_pci_probe(device_t dev) 115 { 116 const struct mwl_pci_ident *ident; 117 118 ident = mwl_pci_lookup(pci_get_vendor(dev), pci_get_device(dev)); 119 if (ident != NULL) { 120 device_set_desc(dev, ident->name); 121 return BUS_PROBE_DEFAULT; 122 } 123 return ENXIO; 124 } 125 126 static int 127 mwl_pci_attach(device_t dev) 128 { 129 struct mwl_pci_softc *psc = device_get_softc(dev); 130 struct mwl_softc *sc = &psc->sc_sc; 131 int rid, error = ENXIO; 132 133 sc->sc_dev = dev; 134 135 pci_enable_busmaster(dev); 136 137 /* 138 * Setup memory-mapping of PCI registers. 139 */ 140 rid = BS_BAR0; 141 psc->sc_sr0 = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 142 RF_ACTIVE); 143 if (psc->sc_sr0 == NULL) { 144 device_printf(dev, "cannot map BAR0 register space\n"); 145 goto bad; 146 } 147 rid = BS_BAR1; 148 psc->sc_sr1 = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 149 RF_ACTIVE); 150 if (psc->sc_sr1 == NULL) { 151 device_printf(dev, "cannot map BAR1 register space\n"); 152 goto bad1; 153 } 154 sc->sc_invalid = 1; 155 156 /* 157 * Arrange interrupt line. 158 */ 159 rid = 0; 160 psc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 161 RF_SHAREABLE|RF_ACTIVE); 162 if (psc->sc_irq == NULL) { 163 device_printf(dev, "could not map interrupt\n"); 164 goto bad2; 165 } 166 if (bus_setup_intr(dev, psc->sc_irq, 167 INTR_TYPE_NET | INTR_MPSAFE, 168 NULL, mwl_intr, sc, &psc->sc_ih)) { 169 device_printf(dev, "could not establish interrupt\n"); 170 goto bad3; 171 } 172 173 /* 174 * Setup DMA descriptor area. 175 */ 176 if (bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */ 177 1, 0, /* alignment, bounds */ 178 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 179 BUS_SPACE_MAXADDR, /* highaddr */ 180 NULL, NULL, /* filter, filterarg */ 181 BUS_SPACE_MAXADDR, /* maxsize */ 182 MWL_TXDESC, /* nsegments */ 183 BUS_SPACE_MAXADDR, /* maxsegsize */ 184 0, /* flags */ 185 NULL, /* lockfunc */ 186 NULL, /* lockarg */ 187 &sc->sc_dmat)) { 188 device_printf(dev, "cannot allocate DMA tag\n"); 189 goto bad4; 190 } 191 192 /* 193 * Finish off the attach. 194 */ 195 MWL_LOCK_INIT(sc); 196 sc->sc_io0t = rman_get_bustag(psc->sc_sr0); 197 sc->sc_io0h = rman_get_bushandle(psc->sc_sr0); 198 sc->sc_io1t = rman_get_bustag(psc->sc_sr1); 199 sc->sc_io1h = rman_get_bushandle(psc->sc_sr1); 200 if (mwl_attach(pci_get_device(dev), sc) == 0) 201 return (0); 202 203 MWL_LOCK_DESTROY(sc); 204 bus_dma_tag_destroy(sc->sc_dmat); 205 bad4: 206 bus_teardown_intr(dev, psc->sc_irq, psc->sc_ih); 207 bad3: 208 bus_release_resource(dev, SYS_RES_IRQ, 0, psc->sc_irq); 209 bad2: 210 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR1, psc->sc_sr1); 211 bad1: 212 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR0, psc->sc_sr0); 213 bad: 214 return (error); 215 } 216 217 static int 218 mwl_pci_detach(device_t dev) 219 { 220 struct mwl_pci_softc *psc = device_get_softc(dev); 221 struct mwl_softc *sc = &psc->sc_sc; 222 223 /* check if device was removed */ 224 sc->sc_invalid = !bus_child_present(dev); 225 226 mwl_detach(sc); 227 228 bus_generic_detach(dev); 229 bus_teardown_intr(dev, psc->sc_irq, psc->sc_ih); 230 bus_release_resource(dev, SYS_RES_IRQ, 0, psc->sc_irq); 231 232 bus_dma_tag_destroy(sc->sc_dmat); 233 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR1, psc->sc_sr1); 234 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR0, psc->sc_sr0); 235 236 MWL_LOCK_DESTROY(sc); 237 238 return (0); 239 } 240 241 static int 242 mwl_pci_shutdown(device_t dev) 243 { 244 struct mwl_pci_softc *psc = device_get_softc(dev); 245 246 mwl_shutdown(&psc->sc_sc); 247 return (0); 248 } 249 250 static int 251 mwl_pci_suspend(device_t dev) 252 { 253 struct mwl_pci_softc *psc = device_get_softc(dev); 254 255 mwl_suspend(&psc->sc_sc); 256 257 return (0); 258 } 259 260 static int 261 mwl_pci_resume(device_t dev) 262 { 263 struct mwl_pci_softc *psc = device_get_softc(dev); 264 265 pci_enable_busmaster(dev); 266 267 mwl_resume(&psc->sc_sc); 268 269 return (0); 270 } 271 272 static device_method_t mwl_pci_methods[] = { 273 /* Device interface */ 274 DEVMETHOD(device_probe, mwl_pci_probe), 275 DEVMETHOD(device_attach, mwl_pci_attach), 276 DEVMETHOD(device_detach, mwl_pci_detach), 277 DEVMETHOD(device_shutdown, mwl_pci_shutdown), 278 DEVMETHOD(device_suspend, mwl_pci_suspend), 279 DEVMETHOD(device_resume, mwl_pci_resume), 280 281 { 0,0 } 282 }; 283 static driver_t mwl_pci_driver = { 284 "mwl", 285 mwl_pci_methods, 286 sizeof (struct mwl_pci_softc) 287 }; 288 static devclass_t mwl_devclass; 289 DRIVER_MODULE(mwl, pci, mwl_pci_driver, mwl_devclass, 0, 0); 290 MODULE_VERSION(mwl, 1); 291 MODULE_DEPEND(mwl, wlan, 1, 1, 1); /* 802.11 media layer */ 292 MODULE_DEPEND(mwl, firmware, 1, 1, 1); 293