1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2007-2009 Sam Leffler, Errno Consulting 5 * Copyright (c) 2007-2009 Marvell Semiconductor, Inc. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer, 13 * without modification. 14 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 15 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any 16 * redistribution must be conditioned upon including a substantially 17 * similar Disclaimer requirement for further binary redistribution. 18 * 19 * NO WARRANTY 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY 23 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 24 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, 25 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 28 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 30 * THE POSSIBILITY OF SUCH DAMAGES. 31 */ 32 33 #include <sys/cdefs.h> 34 #ifdef __FreeBSD__ 35 __FBSDID("$FreeBSD$"); 36 #endif 37 38 /* 39 * PCI front-end for the Marvell Wireless LAN controller driver. 40 */ 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/module.h> 45 #include <sys/kernel.h> 46 #include <sys/lock.h> 47 #include <sys/malloc.h> 48 #include <sys/mbuf.h> 49 #include <sys/mutex.h> 50 #include <sys/errno.h> 51 52 #include <machine/bus.h> 53 #include <machine/resource.h> 54 #include <sys/bus.h> 55 #include <sys/rman.h> 56 57 #include <sys/socket.h> 58 59 #include <net/ethernet.h> 60 #include <net/if.h> 61 #include <net/if_media.h> 62 #include <net/if_arp.h> 63 #include <net/route.h> 64 65 #include <net80211/ieee80211_var.h> 66 67 #include <dev/mwl/if_mwlvar.h> 68 69 #include <dev/pci/pcivar.h> 70 #include <dev/pci/pcireg.h> 71 72 /* 73 * PCI glue. 74 */ 75 76 struct mwl_pci_softc { 77 struct mwl_softc sc_sc; 78 struct resource *sc_sr0; /* BAR0 memory resource */ 79 struct resource *sc_sr1; /* BAR1 memory resource */ 80 struct resource *sc_irq; /* irq resource */ 81 void *sc_ih; /* interrupt handler */ 82 }; 83 84 #define BS_BAR0 0x10 85 #define BS_BAR1 0x14 86 87 struct mwl_pci_ident { 88 uint16_t vendor; 89 uint16_t device; 90 const char *name; 91 }; 92 93 static const struct mwl_pci_ident mwl_pci_ids[] = { 94 { 0x11ab, 0x2a02, "Marvell 88W8363" }, 95 { 0x11ab, 0x2a03, "Marvell 88W8363" }, 96 { 0x11ab, 0x2a0a, "Marvell 88W8363" }, 97 { 0x11ab, 0x2a0b, "Marvell 88W8363" }, 98 { 0x11ab, 0x2a0c, "Marvell 88W8363" }, 99 { 0x11ab, 0x2a21, "Marvell 88W8363" }, 100 { 0x11ab, 0x2a24, "Marvell 88W8363" }, 101 { 0, 0, NULL } 102 }; 103 104 const static struct mwl_pci_ident * 105 mwl_pci_lookup(int vendor, int device) 106 { 107 const struct mwl_pci_ident *ident; 108 109 for (ident = mwl_pci_ids; ident->name != NULL; ident++) 110 if (vendor == ident->vendor && device == ident->device) 111 return ident; 112 return NULL; 113 } 114 115 static int 116 mwl_pci_probe(device_t dev) 117 { 118 const struct mwl_pci_ident *ident; 119 120 ident = mwl_pci_lookup(pci_get_vendor(dev), pci_get_device(dev)); 121 if (ident != NULL) { 122 device_set_desc(dev, ident->name); 123 return BUS_PROBE_DEFAULT; 124 } 125 return ENXIO; 126 } 127 128 static int 129 mwl_pci_attach(device_t dev) 130 { 131 struct mwl_pci_softc *psc = device_get_softc(dev); 132 struct mwl_softc *sc = &psc->sc_sc; 133 int rid, error = ENXIO; 134 135 sc->sc_dev = dev; 136 137 pci_enable_busmaster(dev); 138 139 /* 140 * Setup memory-mapping of PCI registers. 141 */ 142 rid = BS_BAR0; 143 psc->sc_sr0 = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 144 RF_ACTIVE); 145 if (psc->sc_sr0 == NULL) { 146 device_printf(dev, "cannot map BAR0 register space\n"); 147 goto bad; 148 } 149 rid = BS_BAR1; 150 psc->sc_sr1 = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 151 RF_ACTIVE); 152 if (psc->sc_sr1 == NULL) { 153 device_printf(dev, "cannot map BAR1 register space\n"); 154 goto bad1; 155 } 156 sc->sc_invalid = 1; 157 158 /* 159 * Arrange interrupt line. 160 */ 161 rid = 0; 162 psc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 163 RF_SHAREABLE|RF_ACTIVE); 164 if (psc->sc_irq == NULL) { 165 device_printf(dev, "could not map interrupt\n"); 166 goto bad2; 167 } 168 if (bus_setup_intr(dev, psc->sc_irq, 169 INTR_TYPE_NET | INTR_MPSAFE, 170 NULL, mwl_intr, sc, &psc->sc_ih)) { 171 device_printf(dev, "could not establish interrupt\n"); 172 goto bad3; 173 } 174 175 /* 176 * Setup DMA descriptor area. 177 */ 178 if (bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */ 179 1, 0, /* alignment, bounds */ 180 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 181 BUS_SPACE_MAXADDR, /* highaddr */ 182 NULL, NULL, /* filter, filterarg */ 183 BUS_SPACE_MAXSIZE, /* maxsize */ 184 MWL_TXDESC, /* nsegments */ 185 BUS_SPACE_MAXSIZE, /* maxsegsize */ 186 0, /* flags */ 187 NULL, /* lockfunc */ 188 NULL, /* lockarg */ 189 &sc->sc_dmat)) { 190 device_printf(dev, "cannot allocate DMA tag\n"); 191 goto bad4; 192 } 193 194 /* 195 * Finish off the attach. 196 */ 197 MWL_LOCK_INIT(sc); 198 sc->sc_io0t = rman_get_bustag(psc->sc_sr0); 199 sc->sc_io0h = rman_get_bushandle(psc->sc_sr0); 200 sc->sc_io1t = rman_get_bustag(psc->sc_sr1); 201 sc->sc_io1h = rman_get_bushandle(psc->sc_sr1); 202 if (mwl_attach(pci_get_device(dev), sc) == 0) 203 return (0); 204 205 MWL_LOCK_DESTROY(sc); 206 bus_dma_tag_destroy(sc->sc_dmat); 207 bad4: 208 bus_teardown_intr(dev, psc->sc_irq, psc->sc_ih); 209 bad3: 210 bus_release_resource(dev, SYS_RES_IRQ, 0, psc->sc_irq); 211 bad2: 212 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR1, psc->sc_sr1); 213 bad1: 214 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR0, psc->sc_sr0); 215 bad: 216 return (error); 217 } 218 219 static int 220 mwl_pci_detach(device_t dev) 221 { 222 struct mwl_pci_softc *psc = device_get_softc(dev); 223 struct mwl_softc *sc = &psc->sc_sc; 224 225 /* check if device was removed */ 226 sc->sc_invalid = !bus_child_present(dev); 227 228 mwl_detach(sc); 229 230 bus_generic_detach(dev); 231 bus_teardown_intr(dev, psc->sc_irq, psc->sc_ih); 232 bus_release_resource(dev, SYS_RES_IRQ, 0, psc->sc_irq); 233 234 bus_dma_tag_destroy(sc->sc_dmat); 235 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR1, psc->sc_sr1); 236 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR0, psc->sc_sr0); 237 238 MWL_LOCK_DESTROY(sc); 239 240 return (0); 241 } 242 243 static int 244 mwl_pci_shutdown(device_t dev) 245 { 246 struct mwl_pci_softc *psc = device_get_softc(dev); 247 248 mwl_shutdown(&psc->sc_sc); 249 return (0); 250 } 251 252 static int 253 mwl_pci_suspend(device_t dev) 254 { 255 struct mwl_pci_softc *psc = device_get_softc(dev); 256 257 mwl_suspend(&psc->sc_sc); 258 259 return (0); 260 } 261 262 static int 263 mwl_pci_resume(device_t dev) 264 { 265 struct mwl_pci_softc *psc = device_get_softc(dev); 266 267 pci_enable_busmaster(dev); 268 269 mwl_resume(&psc->sc_sc); 270 271 return (0); 272 } 273 274 static device_method_t mwl_pci_methods[] = { 275 /* Device interface */ 276 DEVMETHOD(device_probe, mwl_pci_probe), 277 DEVMETHOD(device_attach, mwl_pci_attach), 278 DEVMETHOD(device_detach, mwl_pci_detach), 279 DEVMETHOD(device_shutdown, mwl_pci_shutdown), 280 DEVMETHOD(device_suspend, mwl_pci_suspend), 281 DEVMETHOD(device_resume, mwl_pci_resume), 282 { 0,0 } 283 }; 284 285 static driver_t mwl_pci_driver = { 286 "mwl", 287 mwl_pci_methods, 288 sizeof (struct mwl_pci_softc) 289 }; 290 291 DRIVER_MODULE(mwl, pci, mwl_pci_driver, 0, 0); 292 MODULE_VERSION(mwl, 1); 293 MODULE_DEPEND(mwl, wlan, 1, 1, 1); /* 802.11 media layer */ 294 MODULE_DEPEND(mwl, firmware, 1, 1, 1); 295