1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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 /* 34 * PCI front-end for the Marvell Wireless LAN controller driver. 35 */ 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/module.h> 40 #include <sys/kernel.h> 41 #include <sys/lock.h> 42 #include <sys/malloc.h> 43 #include <sys/mbuf.h> 44 #include <sys/mutex.h> 45 #include <sys/errno.h> 46 47 #include <machine/bus.h> 48 #include <machine/resource.h> 49 #include <sys/bus.h> 50 #include <sys/rman.h> 51 52 #include <sys/socket.h> 53 54 #include <net/ethernet.h> 55 #include <net/if.h> 56 #include <net/if_media.h> 57 #include <net/if_arp.h> 58 #include <net/route.h> 59 60 #include <net80211/ieee80211_var.h> 61 62 #include <dev/mwl/if_mwlvar.h> 63 64 #include <dev/pci/pcivar.h> 65 #include <dev/pci/pcireg.h> 66 67 /* 68 * PCI glue. 69 */ 70 71 struct mwl_pci_softc { 72 struct mwl_softc sc_sc; 73 struct resource *sc_sr0; /* BAR0 memory resource */ 74 struct resource *sc_sr1; /* BAR1 memory resource */ 75 struct resource *sc_irq; /* irq resource */ 76 void *sc_ih; /* interrupt handler */ 77 }; 78 79 #define BS_BAR0 0x10 80 #define BS_BAR1 0x14 81 82 struct mwl_pci_ident { 83 uint16_t vendor; 84 uint16_t device; 85 const char *name; 86 }; 87 88 static const struct mwl_pci_ident mwl_pci_ids[] = { 89 { 0x11ab, 0x2a02, "Marvell 88W8363" }, 90 { 0x11ab, 0x2a03, "Marvell 88W8363" }, 91 { 0x11ab, 0x2a0a, "Marvell 88W8363" }, 92 { 0x11ab, 0x2a0b, "Marvell 88W8363" }, 93 { 0x11ab, 0x2a0c, "Marvell 88W8363" }, 94 { 0x11ab, 0x2a21, "Marvell 88W8363" }, 95 { 0x11ab, 0x2a24, "Marvell 88W8363" }, 96 { 0, 0, NULL } 97 }; 98 99 const static struct mwl_pci_ident * 100 mwl_pci_lookup(int vendor, int device) 101 { 102 const struct mwl_pci_ident *ident; 103 104 for (ident = mwl_pci_ids; ident->name != NULL; ident++) 105 if (vendor == ident->vendor && device == ident->device) 106 return ident; 107 return NULL; 108 } 109 110 static int 111 mwl_pci_probe(device_t dev) 112 { 113 const struct mwl_pci_ident *ident; 114 115 ident = mwl_pci_lookup(pci_get_vendor(dev), pci_get_device(dev)); 116 if (ident != NULL) { 117 device_set_desc(dev, ident->name); 118 return BUS_PROBE_DEFAULT; 119 } 120 return ENXIO; 121 } 122 123 static int 124 mwl_pci_attach(device_t dev) 125 { 126 struct mwl_pci_softc *psc = device_get_softc(dev); 127 struct mwl_softc *sc = &psc->sc_sc; 128 int rid, error = ENXIO; 129 130 sc->sc_dev = dev; 131 132 pci_enable_busmaster(dev); 133 134 /* 135 * Setup memory-mapping of PCI registers. 136 */ 137 rid = BS_BAR0; 138 psc->sc_sr0 = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 139 RF_ACTIVE); 140 if (psc->sc_sr0 == NULL) { 141 device_printf(dev, "cannot map BAR0 register space\n"); 142 goto bad; 143 } 144 rid = BS_BAR1; 145 psc->sc_sr1 = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 146 RF_ACTIVE); 147 if (psc->sc_sr1 == NULL) { 148 device_printf(dev, "cannot map BAR1 register space\n"); 149 goto bad1; 150 } 151 sc->sc_invalid = 1; 152 153 /* 154 * Arrange interrupt line. 155 */ 156 rid = 0; 157 psc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 158 RF_SHAREABLE|RF_ACTIVE); 159 if (psc->sc_irq == NULL) { 160 device_printf(dev, "could not map interrupt\n"); 161 goto bad2; 162 } 163 if (bus_setup_intr(dev, psc->sc_irq, 164 INTR_TYPE_NET | INTR_MPSAFE, 165 NULL, mwl_intr, sc, &psc->sc_ih)) { 166 device_printf(dev, "could not establish interrupt\n"); 167 goto bad3; 168 } 169 170 /* 171 * Setup DMA descriptor area. 172 */ 173 if (bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */ 174 1, 0, /* alignment, bounds */ 175 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 176 BUS_SPACE_MAXADDR, /* highaddr */ 177 NULL, NULL, /* filter, filterarg */ 178 BUS_SPACE_MAXSIZE, /* maxsize */ 179 MWL_TXDESC, /* nsegments */ 180 BUS_SPACE_MAXSIZE, /* maxsegsize */ 181 0, /* flags */ 182 NULL, /* lockfunc */ 183 NULL, /* lockarg */ 184 &sc->sc_dmat)) { 185 device_printf(dev, "cannot allocate DMA tag\n"); 186 goto bad4; 187 } 188 189 /* 190 * Finish off the attach. 191 */ 192 MWL_LOCK_INIT(sc); 193 sc->sc_io0t = rman_get_bustag(psc->sc_sr0); 194 sc->sc_io0h = rman_get_bushandle(psc->sc_sr0); 195 sc->sc_io1t = rman_get_bustag(psc->sc_sr1); 196 sc->sc_io1h = rman_get_bushandle(psc->sc_sr1); 197 if (mwl_attach(pci_get_device(dev), sc) == 0) 198 return (0); 199 200 MWL_LOCK_DESTROY(sc); 201 bus_dma_tag_destroy(sc->sc_dmat); 202 bad4: 203 bus_teardown_intr(dev, psc->sc_irq, psc->sc_ih); 204 bad3: 205 bus_release_resource(dev, SYS_RES_IRQ, 0, psc->sc_irq); 206 bad2: 207 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR1, psc->sc_sr1); 208 bad1: 209 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR0, psc->sc_sr0); 210 bad: 211 return (error); 212 } 213 214 static int 215 mwl_pci_detach(device_t dev) 216 { 217 struct mwl_pci_softc *psc = device_get_softc(dev); 218 struct mwl_softc *sc = &psc->sc_sc; 219 220 /* check if device was removed */ 221 sc->sc_invalid = !bus_child_present(dev); 222 223 mwl_detach(sc); 224 225 bus_generic_detach(dev); 226 bus_teardown_intr(dev, psc->sc_irq, psc->sc_ih); 227 bus_release_resource(dev, SYS_RES_IRQ, 0, psc->sc_irq); 228 229 bus_dma_tag_destroy(sc->sc_dmat); 230 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR1, psc->sc_sr1); 231 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR0, psc->sc_sr0); 232 233 MWL_LOCK_DESTROY(sc); 234 235 return (0); 236 } 237 238 static int 239 mwl_pci_shutdown(device_t dev) 240 { 241 struct mwl_pci_softc *psc = device_get_softc(dev); 242 243 mwl_shutdown(&psc->sc_sc); 244 return (0); 245 } 246 247 static int 248 mwl_pci_suspend(device_t dev) 249 { 250 struct mwl_pci_softc *psc = device_get_softc(dev); 251 252 mwl_suspend(&psc->sc_sc); 253 254 return (0); 255 } 256 257 static int 258 mwl_pci_resume(device_t dev) 259 { 260 struct mwl_pci_softc *psc = device_get_softc(dev); 261 262 pci_enable_busmaster(dev); 263 264 mwl_resume(&psc->sc_sc); 265 266 return (0); 267 } 268 269 static device_method_t mwl_pci_methods[] = { 270 /* Device interface */ 271 DEVMETHOD(device_probe, mwl_pci_probe), 272 DEVMETHOD(device_attach, mwl_pci_attach), 273 DEVMETHOD(device_detach, mwl_pci_detach), 274 DEVMETHOD(device_shutdown, mwl_pci_shutdown), 275 DEVMETHOD(device_suspend, mwl_pci_suspend), 276 DEVMETHOD(device_resume, mwl_pci_resume), 277 { 0,0 } 278 }; 279 280 static driver_t mwl_pci_driver = { 281 "mwl", 282 mwl_pci_methods, 283 sizeof (struct mwl_pci_softc) 284 }; 285 286 DRIVER_MODULE(mwl, pci, mwl_pci_driver, 0, 0); 287 MODULE_VERSION(mwl, 1); 288 MODULE_DEPEND(mwl, wlan, 1, 1, 1); /* 802.11 media layer */ 289 MODULE_DEPEND(mwl, firmware, 1, 1, 1); 290