if_ral_pci.c

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    1 /*-
    2  * Copyright (c) 2005, 2006
    3  *      Damien Bergamini <damien.bergamini@free.fr>
    4  *
    5  * Permission to use, copy, modify, and distribute this software for any
    6  * purpose with or without fee is hereby granted, provided that the above
    7  * copyright notice and this permission notice appear in all copies.
    8  *
    9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   16  */
   17 
   18 #include <sys/cdefs.h>
   19 __FBSDID("$FreeBSD$");
   20 
   21 /*
   22  * PCI/Cardbus front-end for the Ralink RT2560/RT2561/RT2561S/RT2661 driver.
   23  */
   24 
   25 #include <sys/param.h>
   26 #include <sys/systm.h>
   27 #include <sys/bus.h>
   28 #include <sys/kernel.h>
   29 #include <sys/lock.h>
   30 #include <sys/malloc.h>
   31 #include <sys/mbuf.h>
   32 #include <sys/module.h>
   33 #include <sys/mutex.h>
   34 #include <sys/rman.h>
   35 #include <sys/socket.h>
   36 
   37 #include <machine/bus.h>
   38 #include <machine/resource.h>
   39 
   40 #include <net/ethernet.h>
   41 #include <net/if.h>
   42 #include <net/if_media.h>
   43 #include <net/route.h>
   44 
   45 #include <net80211/ieee80211_var.h>
   46 #include <net80211/ieee80211_radiotap.h>
   47 #include <net80211/ieee80211_ratectl.h>
   48 
   49 #include <dev/pci/pcireg.h>
   50 #include <dev/pci/pcivar.h>
   51 
   52 #include <dev/ral/rt2560var.h>
   53 #include <dev/ral/rt2661var.h>
   54 #include <dev/ral/rt2860var.h>
   55 
   56 MODULE_DEPEND(ral, pci, 1, 1, 1);
   57 MODULE_DEPEND(ral, firmware, 1, 1, 1);
   58 MODULE_DEPEND(ral, wlan, 1, 1, 1);
   59 MODULE_DEPEND(ral, wlan_amrr, 1, 1, 1);
   60 
   61 static int ral_msi_disable;
   62 TUNABLE_INT("hw.ral.msi_disable", &ral_msi_disable);
   63 
   64 struct ral_pci_ident {
   65         uint16_t        vendor;
   66         uint16_t        device;
   67         const char      *name;
   68 };
   69 
   70 static const struct ral_pci_ident ral_pci_ids[] = {
   71         { 0x1432, 0x7708, "Edimax RT2860" },
   72         { 0x1432, 0x7711, "Edimax RT3591" },
   73         { 0x1432, 0x7722, "Edimax RT3591" },
   74         { 0x1432, 0x7727, "Edimax RT2860" },
   75         { 0x1432, 0x7728, "Edimax RT2860" },
   76         { 0x1432, 0x7738, "Edimax RT2860" },
   77         { 0x1432, 0x7748, "Edimax RT2860" },
   78         { 0x1432, 0x7758, "Edimax RT2860" },
   79         { 0x1432, 0x7768, "Edimax RT2860" },
   80         { 0x1462, 0x891a, "MSI RT3090" },
   81         { 0x1814, 0x0201, "Ralink Technology RT2560" },
   82         { 0x1814, 0x0301, "Ralink Technology RT2561S" },
   83         { 0x1814, 0x0302, "Ralink Technology RT2561" },
   84         { 0x1814, 0x0401, "Ralink Technology RT2661" },
   85         { 0x1814, 0x0601, "Ralink Technology RT2860" },
   86         { 0x1814, 0x0681, "Ralink Technology RT2890" },
   87         { 0x1814, 0x0701, "Ralink Technology RT2760" },
   88         { 0x1814, 0x0781, "Ralink Technology RT2790" },
   89         { 0x1814, 0x3060, "Ralink Technology RT3060" },
   90         { 0x1814, 0x3062, "Ralink Technology RT3062" },
   91         { 0x1814, 0x3090, "Ralink Technology RT3090" },
   92         { 0x1814, 0x3091, "Ralink Technology RT3091" },
   93         { 0x1814, 0x3092, "Ralink Technology RT3092" },
   94         { 0x1814, 0x3390, "Ralink Technology RT3390" },
   95         { 0x1814, 0x3562, "Ralink Technology RT3562" },
   96         { 0x1814, 0x3592, "Ralink Technology RT3592" },
   97         { 0x1814, 0x3593, "Ralink Technology RT3593" },
   98         { 0x1814, 0x5360, "Ralink Technology RT5390" },
   99         { 0x1814, 0x5362, "Ralink Technology RT5392" },
  100         { 0x1814, 0x5390, "Ralink Technology RT5390" },
  101         { 0x1814, 0x5392, "Ralink Technology RT5392" },
  102         { 0x1814, 0x539a, "Ralink Technology RT5390" },
  103         { 0x1814, 0x539b, "Ralink Technology RT5390" },
  104         { 0x1814, 0x539f, "Ralink Technology RT5390" },
  105         { 0x1a3b, 0x1059, "AWT RT2890" },
  106         { 0, 0, NULL }
  107 };
  108 
  109 static const struct ral_opns {
  110         int     (*attach)(device_t, int);
  111         int     (*detach)(void *);
  112         void    (*shutdown)(void *);
  113         void    (*suspend)(void *);
  114         void    (*resume)(void *);
  115         void    (*intr)(void *);
  116 
  117 }  ral_rt2560_opns = {
  118         rt2560_attach,
  119         rt2560_detach,
  120         rt2560_stop,
  121         rt2560_stop,
  122         rt2560_resume,
  123         rt2560_intr
  124 
  125 }, ral_rt2661_opns = {
  126         rt2661_attach,
  127         rt2661_detach,
  128         rt2661_shutdown,
  129         rt2661_suspend,
  130         rt2661_resume,
  131         rt2661_intr
  132 }, ral_rt2860_opns = {
  133         rt2860_attach,
  134         rt2860_detach,
  135         rt2860_shutdown,
  136         rt2860_suspend,
  137         rt2860_resume,
  138         rt2860_intr
  139 };
  140 
  141 struct ral_pci_softc {
  142         union {
  143                 struct rt2560_softc sc_rt2560;
  144                 struct rt2661_softc sc_rt2661;
  145                 struct rt2860_softc sc_rt2860;
  146         } u;
  147 
  148         const struct ral_opns   *sc_opns;
  149         struct resource         *irq;
  150         struct resource         *mem;
  151         void                    *sc_ih;
  152 };
  153 
  154 static int ral_pci_probe(device_t);
  155 static int ral_pci_attach(device_t);
  156 static int ral_pci_detach(device_t);
  157 static int ral_pci_shutdown(device_t);
  158 static int ral_pci_suspend(device_t);
  159 static int ral_pci_resume(device_t);
  160 
  161 static device_method_t ral_pci_methods[] = {
  162         /* Device interface */
  163         DEVMETHOD(device_probe,         ral_pci_probe),
  164         DEVMETHOD(device_attach,        ral_pci_attach),
  165         DEVMETHOD(device_detach,        ral_pci_detach),
  166         DEVMETHOD(device_shutdown,      ral_pci_shutdown),
  167         DEVMETHOD(device_suspend,       ral_pci_suspend),
  168         DEVMETHOD(device_resume,        ral_pci_resume),
  169 
  170         DEVMETHOD_END
  171 };
  172 
  173 static driver_t ral_pci_driver = {
  174         "ral",
  175         ral_pci_methods,
  176         sizeof (struct ral_pci_softc)
  177 };
  178 
  179 DRIVER_MODULE(ral, pci, ral_pci_driver, NULL, NULL);
  180 MODULE_PNP_INFO("U16:vendor;U16:device;D:#", pci, ral, ral_pci_ids,
  181     nitems(ral_pci_ids) - 1);
  182 
  183 static int
  184 ral_pci_probe(device_t dev)
  185 {
  186         const struct ral_pci_ident *ident;
  187 
  188         for (ident = ral_pci_ids; ident->name != NULL; ident++) {
  189                 if (pci_get_vendor(dev) == ident->vendor &&
  190                     pci_get_device(dev) == ident->device) {
  191                         device_set_desc(dev, ident->name);
  192                         return (BUS_PROBE_DEFAULT);
  193                 }
  194         }
  195         return ENXIO;
  196 }
  197 
  198 static int
  199 ral_pci_attach(device_t dev)
  200 {
  201         struct ral_pci_softc *psc = device_get_softc(dev);
  202         struct rt2560_softc *sc = &psc->u.sc_rt2560;
  203         int count, error, rid;
  204 
  205         pci_enable_busmaster(dev);
  206 
  207         switch (pci_get_device(dev)) {
  208         case 0x0201:
  209                 psc->sc_opns = &ral_rt2560_opns;
  210                 break;
  211         case 0x0301:
  212         case 0x0302:
  213         case 0x0401:
  214                 psc->sc_opns = &ral_rt2661_opns;
  215                 break;
  216         default:
  217                 psc->sc_opns = &ral_rt2860_opns;
  218                 break;
  219         }
  220 
  221         rid = PCIR_BAR(0);
  222         psc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
  223             RF_ACTIVE);
  224         if (psc->mem == NULL) {
  225                 device_printf(dev, "could not allocate memory resource\n");
  226                 return ENXIO;
  227         }
  228 
  229         sc->sc_st = rman_get_bustag(psc->mem);
  230         sc->sc_sh = rman_get_bushandle(psc->mem);
  231         sc->sc_invalid = 1;
  232 
  233         rid = 0;
  234         if (ral_msi_disable == 0) {
  235                 count = 1;
  236                 if (pci_alloc_msi(dev, &count) == 0)
  237                         rid = 1;
  238         }
  239         psc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE |
  240             (rid != 0 ? 0 : RF_SHAREABLE));
  241         if (psc->irq == NULL) {
  242                 device_printf(dev, "could not allocate interrupt resource\n");
  243                 pci_release_msi(dev);
  244                 bus_release_resource(dev, SYS_RES_MEMORY,
  245                     rman_get_rid(psc->mem), psc->mem);
  246                 return ENXIO;
  247         }
  248 
  249         error = (*psc->sc_opns->attach)(dev, pci_get_device(dev));
  250         if (error != 0) {
  251                 (void)ral_pci_detach(dev);
  252                 return error;
  253         }
  254 
  255         /*
  256          * Hook our interrupt after all initialization is complete.
  257          */
  258         error = bus_setup_intr(dev, psc->irq, INTR_TYPE_NET | INTR_MPSAFE,
  259             NULL, psc->sc_opns->intr, psc, &psc->sc_ih);
  260         if (error != 0) {
  261                 device_printf(dev, "could not set up interrupt\n");
  262                 (void)ral_pci_detach(dev);
  263                 return error;
  264         }
  265         sc->sc_invalid = 0;
  266 
  267         return 0;
  268 }
  269 
  270 static int
  271 ral_pci_detach(device_t dev)
  272 {
  273         struct ral_pci_softc *psc = device_get_softc(dev);
  274         struct rt2560_softc *sc = &psc->u.sc_rt2560;
  275 
  276         /* check if device was removed */
  277         sc->sc_invalid = !bus_child_present(dev);
  278 
  279         if (psc->sc_ih != NULL)
  280                 bus_teardown_intr(dev, psc->irq, psc->sc_ih);
  281         (*psc->sc_opns->detach)(psc);
  282 
  283         bus_generic_detach(dev);
  284         bus_release_resource(dev, SYS_RES_IRQ, rman_get_rid(psc->irq),
  285             psc->irq);
  286         pci_release_msi(dev);
  287 
  288         bus_release_resource(dev, SYS_RES_MEMORY, rman_get_rid(psc->mem),
  289             psc->mem);
  290 
  291         return 0;
  292 }
  293 
  294 static int
  295 ral_pci_shutdown(device_t dev)
  296 {
  297         struct ral_pci_softc *psc = device_get_softc(dev);
  298 
  299         (*psc->sc_opns->shutdown)(psc);
  300 
  301         return 0;
  302 }
  303 
  304 static int
  305 ral_pci_suspend(device_t dev)
  306 {
  307         struct ral_pci_softc *psc = device_get_softc(dev);
  308 
  309         (*psc->sc_opns->suspend)(psc);
  310 
  311         return 0;
  312 }
  313 
  314 static int
  315 ral_pci_resume(device_t dev)
  316 {
  317         struct ral_pci_softc *psc = device_get_softc(dev);
  318 
  319         (*psc->sc_opns->resume)(psc);
  320 
  321         return 0;
  322 }
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FreeBSD/Linux Kernel Cross Reference sys/dev/ral/if_ral_pci.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/ral/if_ral_pci.c
