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/mbuf.h> 47 #include <sys/mutex.h> 48 #include <sys/errno.h> 49 50 #include <machine/bus.h> 51 #include <machine/resource.h> 52 #include <sys/bus.h> 53 #include <sys/rman.h> 54 55 #include <sys/socket.h> 56 57 #include <net/ethernet.h> 58 #include <net/if.h> 59 #include <net/if_media.h> 60 #include <net/if_arp.h> 61 #include <net/route.h> 62 63 #include <net80211/ieee80211_var.h> 64 65 #include <dev/mwl/if_mwlvar.h> 66 67 #include <dev/pci/pcivar.h> 68 #include <dev/pci/pcireg.h> 69 70 /* 71 * PCI glue. 72 */ 73 74 struct mwl_pci_softc { 75 struct mwl_softc sc_sc; 76 struct resource *sc_sr0; /* BAR0 memory resource */ 77 struct resource *sc_sr1; /* BAR1 memory resource */ 78 struct resource *sc_irq; /* irq resource */ 79 void *sc_ih; /* interrupt handler */ 80 }; 81 82 #define BS_BAR0 0x10 83 #define BS_BAR1 0x14 84 85 struct mwl_pci_ident { 86 uint16_t vendor; 87 uint16_t device; 88 const char *name; 89 }; 90 91 static const struct mwl_pci_ident mwl_pci_ids[] = { 92 { 0x11ab, 0x2a02, "Marvell 88W8363" }, 93 { 0x11ab, 0x2a03, "Marvell 88W8363" }, 94 { 0x11ab, 0x2a0a, "Marvell 88W8363" }, 95 { 0x11ab, 0x2a0b, "Marvell 88W8363" }, 96 { 0x11ab, 0x2a0c, "Marvell 88W8363" }, 97 { 0x11ab, 0x2a21, "Marvell 88W8363" }, 98 { 0x11ab, 0x2a24, "Marvell 88W8363" }, 99 100 { 0, 0, NULL } 101 }; 102 103 const static struct mwl_pci_ident * 104 mwl_pci_lookup(int vendor, int device) 105 { 106 const struct mwl_pci_ident *ident; 107 108 for (ident = mwl_pci_ids; ident->name != NULL; ident++) 109 if (vendor == ident->vendor && device == ident->device) 110 return ident; 111 return NULL; 112 } 113 114 static int 115 mwl_pci_probe(device_t dev) 116 { 117 const struct mwl_pci_ident *ident; 118 119 ident = mwl_pci_lookup(pci_get_vendor(dev), pci_get_device(dev)); 120 if (ident != NULL) { 121 device_set_desc(dev, ident->name); 122 return BUS_PROBE_DEFAULT; 123 } 124 return ENXIO; 125 } 126 127 static int 128 mwl_pci_attach(device_t dev) 129 { 130 struct mwl_pci_softc *psc = device_get_softc(dev); 131 struct mwl_softc *sc = &psc->sc_sc; 132 int rid, error = ENXIO; 133 134 sc->sc_dev = dev; 135 136 pci_enable_busmaster(dev); 137 138 /* 139 * Setup memory-mapping of PCI registers. 140 */ 141 rid = BS_BAR0; 142 psc->sc_sr0 = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 143 RF_ACTIVE); 144 if (psc->sc_sr0 == NULL) { 145 device_printf(dev, "cannot map BAR0 register space\n"); 146 goto bad; 147 } 148 rid = BS_BAR1; 149 psc->sc_sr1 = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 150 RF_ACTIVE); 151 if (psc->sc_sr1 == NULL) { 152 device_printf(dev, "cannot map BAR1 register space\n"); 153 goto bad1; 154 } 155 sc->sc_invalid = 1; 156 157 /* 158 * Arrange interrupt line. 159 */ 160 rid = 0; 161 psc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 162 RF_SHAREABLE|RF_ACTIVE); 163 if (psc->sc_irq == NULL) { 164 device_printf(dev, "could not map interrupt\n"); 165 goto bad2; 166 } 167 if (bus_setup_intr(dev, psc->sc_irq, 168 INTR_TYPE_NET | INTR_MPSAFE, 169 NULL, mwl_intr, sc, &psc->sc_ih)) { 170 device_printf(dev, "could not establish interrupt\n"); 171 goto bad3; 172 } 173 174 /* 175 * Setup DMA descriptor area. 176 */ 177 if (bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */ 178 1, 0, /* alignment, bounds */ 179 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 180 BUS_SPACE_MAXADDR, /* highaddr */ 181 NULL, NULL, /* filter, filterarg */ 182 BUS_SPACE_MAXSIZE, /* maxsize */ 183 MWL_TXDESC, /* nsegments */ 184 BUS_SPACE_MAXSIZE, /* maxsegsize */ 185 0, /* flags */ 186 NULL, /* lockfunc */ 187 NULL, /* lockarg */ 188 &sc->sc_dmat)) { 189 device_printf(dev, "cannot allocate DMA tag\n"); 190 goto bad4; 191 } 192 193 /* 194 * Finish off the attach. 195 */ 196 MWL_LOCK_INIT(sc); 197 sc->sc_io0t = rman_get_bustag(psc->sc_sr0); 198 sc->sc_io0h = rman_get_bushandle(psc->sc_sr0); 199 sc->sc_io1t = rman_get_bustag(psc->sc_sr1); 200 sc->sc_io1h = rman_get_bushandle(psc->sc_sr1); 201 if (mwl_attach(pci_get_device(dev), sc) == 0) 202 return (0); 203 204 MWL_LOCK_DESTROY(sc); 205 bus_dma_tag_destroy(sc->sc_dmat); 206 bad4: 207 bus_teardown_intr(dev, psc->sc_irq, psc->sc_ih); 208 bad3: 209 bus_release_resource(dev, SYS_RES_IRQ, 0, psc->sc_irq); 210 bad2: 211 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR1, psc->sc_sr1); 212 bad1: 213 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR0, psc->sc_sr0); 214 bad: 215 return (error); 216 } 217 218 static int 219 mwl_pci_detach(device_t dev) 220 { 221 struct mwl_pci_softc *psc = device_get_softc(dev); 222 struct mwl_softc *sc = &psc->sc_sc; 223 224 /* check if device was removed */ 225 sc->sc_invalid = !bus_child_present(dev); 226 227 mwl_detach(sc); 228 229 bus_generic_detach(dev); 230 bus_teardown_intr(dev, psc->sc_irq, psc->sc_ih); 231 bus_release_resource(dev, SYS_RES_IRQ, 0, psc->sc_irq); 232 233 bus_dma_tag_destroy(sc->sc_dmat); 234 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR1, psc->sc_sr1); 235 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR0, psc->sc_sr0); 236 237 MWL_LOCK_DESTROY(sc); 238 239 return (0); 240 } 241 242 static int 243 mwl_pci_shutdown(device_t dev) 244 { 245 struct mwl_pci_softc *psc = device_get_softc(dev); 246 247 mwl_shutdown(&psc->sc_sc); 248 return (0); 249 } 250 251 static int 252 mwl_pci_suspend(device_t dev) 253 { 254 struct mwl_pci_softc *psc = device_get_softc(dev); 255 256 mwl_suspend(&psc->sc_sc); 257 258 return (0); 259 } 260 261 static int 262 mwl_pci_resume(device_t dev) 263 { 264 struct mwl_pci_softc *psc = device_get_softc(dev); 265 266 pci_enable_busmaster(dev); 267 268 mwl_resume(&psc->sc_sc); 269 270 return (0); 271 } 272 273 static device_method_t mwl_pci_methods[] = { 274 /* Device interface */ 275 DEVMETHOD(device_probe, mwl_pci_probe), 276 DEVMETHOD(device_attach, mwl_pci_attach), 277 DEVMETHOD(device_detach, mwl_pci_detach), 278 DEVMETHOD(device_shutdown, mwl_pci_shutdown), 279 DEVMETHOD(device_suspend, mwl_pci_suspend), 280 DEVMETHOD(device_resume, mwl_pci_resume), 281 282 { 0,0 } 283 }; 284 static driver_t mwl_pci_driver = { 285 "mwl", 286 mwl_pci_methods, 287 sizeof (struct mwl_pci_softc) 288 }; 289 static devclass_t mwl_devclass; 290 DRIVER_MODULE(mwl, pci, mwl_pci_driver, mwl_devclass, 0, 0); 291 MODULE_VERSION(mwl, 1); 292 MODULE_DEPEND(mwl, wlan, 1, 1, 1); /* 802.11 media layer */ 293 MODULE_DEPEND(mwl, firmware, 1, 1, 1); 294