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" }, 101 102 { 0, 0, NULL } 103 }; 104 105 const static struct mwl_pci_ident * 106 mwl_pci_lookup(int vendor, int device) 107 { 108 const struct mwl_pci_ident *ident; 109 110 for (ident = mwl_pci_ids; ident->name != NULL; ident++) 111 if (vendor == ident->vendor && device == ident->device) 112 return ident; 113 return NULL; 114 } 115 116 static int 117 mwl_pci_probe(device_t dev) 118 { 119 const struct mwl_pci_ident *ident; 120 121 ident = mwl_pci_lookup(pci_get_vendor(dev), pci_get_device(dev)); 122 if (ident != NULL) { 123 device_set_desc(dev, ident->name); 124 return BUS_PROBE_DEFAULT; 125 } 126 return ENXIO; 127 } 128 129 static int 130 mwl_pci_attach(device_t dev) 131 { 132 struct mwl_pci_softc *psc = device_get_softc(dev); 133 struct mwl_softc *sc = &psc->sc_sc; 134 int rid, error = ENXIO; 135 136 sc->sc_dev = dev; 137 138 pci_enable_busmaster(dev); 139 140 /* 141 * Setup memory-mapping of PCI registers. 142 */ 143 rid = BS_BAR0; 144 psc->sc_sr0 = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 145 RF_ACTIVE); 146 if (psc->sc_sr0 == NULL) { 147 device_printf(dev, "cannot map BAR0 register space\n"); 148 goto bad; 149 } 150 rid = BS_BAR1; 151 psc->sc_sr1 = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 152 RF_ACTIVE); 153 if (psc->sc_sr1 == NULL) { 154 device_printf(dev, "cannot map BAR1 register space\n"); 155 goto bad1; 156 } 157 sc->sc_invalid = 1; 158 159 /* 160 * Arrange interrupt line. 161 */ 162 rid = 0; 163 psc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 164 RF_SHAREABLE|RF_ACTIVE); 165 if (psc->sc_irq == NULL) { 166 device_printf(dev, "could not map interrupt\n"); 167 goto bad2; 168 } 169 if (bus_setup_intr(dev, psc->sc_irq, 170 INTR_TYPE_NET | INTR_MPSAFE, 171 NULL, mwl_intr, sc, &psc->sc_ih)) { 172 device_printf(dev, "could not establish interrupt\n"); 173 goto bad3; 174 } 175 176 /* 177 * Setup DMA descriptor area. 178 */ 179 if (bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */ 180 1, 0, /* alignment, bounds */ 181 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 182 BUS_SPACE_MAXADDR, /* highaddr */ 183 NULL, NULL, /* filter, filterarg */ 184 BUS_SPACE_MAXSIZE, /* maxsize */ 185 MWL_TXDESC, /* nsegments */ 186 BUS_SPACE_MAXSIZE, /* maxsegsize */ 187 0, /* flags */ 188 NULL, /* lockfunc */ 189 NULL, /* lockarg */ 190 &sc->sc_dmat)) { 191 device_printf(dev, "cannot allocate DMA tag\n"); 192 goto bad4; 193 } 194 195 /* 196 * Finish off the attach. 197 */ 198 MWL_LOCK_INIT(sc); 199 sc->sc_io0t = rman_get_bustag(psc->sc_sr0); 200 sc->sc_io0h = rman_get_bushandle(psc->sc_sr0); 201 sc->sc_io1t = rman_get_bustag(psc->sc_sr1); 202 sc->sc_io1h = rman_get_bushandle(psc->sc_sr1); 203 if (mwl_attach(pci_get_device(dev), sc) == 0) 204 return (0); 205 206 MWL_LOCK_DESTROY(sc); 207 bus_dma_tag_destroy(sc->sc_dmat); 208 bad4: 209 bus_teardown_intr(dev, psc->sc_irq, psc->sc_ih); 210 bad3: 211 bus_release_resource(dev, SYS_RES_IRQ, 0, psc->sc_irq); 212 bad2: 213 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR1, psc->sc_sr1); 214 bad1: 215 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR0, psc->sc_sr0); 216 bad: 217 return (error); 218 } 219 220 static int 221 mwl_pci_detach(device_t dev) 222 { 223 struct mwl_pci_softc *psc = device_get_softc(dev); 224 struct mwl_softc *sc = &psc->sc_sc; 225 226 /* check if device was removed */ 227 sc->sc_invalid = !bus_child_present(dev); 228 229 mwl_detach(sc); 230 231 bus_generic_detach(dev); 232 bus_teardown_intr(dev, psc->sc_irq, psc->sc_ih); 233 bus_release_resource(dev, SYS_RES_IRQ, 0, psc->sc_irq); 234 235 bus_dma_tag_destroy(sc->sc_dmat); 236 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR1, psc->sc_sr1); 237 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR0, psc->sc_sr0); 238 239 MWL_LOCK_DESTROY(sc); 240 241 return (0); 242 } 243 244 static int 245 mwl_pci_shutdown(device_t dev) 246 { 247 struct mwl_pci_softc *psc = device_get_softc(dev); 248 249 mwl_shutdown(&psc->sc_sc); 250 return (0); 251 } 252 253 static int 254 mwl_pci_suspend(device_t dev) 255 { 256 struct mwl_pci_softc *psc = device_get_softc(dev); 257 258 mwl_suspend(&psc->sc_sc); 259 260 return (0); 261 } 262 263 static int 264 mwl_pci_resume(device_t dev) 265 { 266 struct mwl_pci_softc *psc = device_get_softc(dev); 267 268 pci_enable_busmaster(dev); 269 270 mwl_resume(&psc->sc_sc); 271 272 return (0); 273 } 274 275 static device_method_t mwl_pci_methods[] = { 276 /* Device interface */ 277 DEVMETHOD(device_probe, mwl_pci_probe), 278 DEVMETHOD(device_attach, mwl_pci_attach), 279 DEVMETHOD(device_detach, mwl_pci_detach), 280 DEVMETHOD(device_shutdown, mwl_pci_shutdown), 281 DEVMETHOD(device_suspend, mwl_pci_suspend), 282 DEVMETHOD(device_resume, mwl_pci_resume), 283 284 { 0,0 } 285 }; 286 static driver_t mwl_pci_driver = { 287 "mwl", 288 mwl_pci_methods, 289 sizeof (struct mwl_pci_softc) 290 }; 291 static devclass_t mwl_devclass; 292 DRIVER_MODULE(mwl, pci, mwl_pci_driver, mwl_devclass, 0, 0); 293 MODULE_VERSION(mwl, 1); 294 MODULE_DEPEND(mwl, wlan, 1, 1, 1); /* 802.11 media layer */ 295 MODULE_DEPEND(mwl, firmware, 1, 1, 1); 296