if_ral_pci.c

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    1 /*      $FreeBSD$       */
    2 
    3 /*-
    4  * Copyright (c) 2005, 2006
    5  *      Damien Bergamini <damien.bergamini@free.fr>
    6  *
    7  * Permission to use, copy, modify, and distribute this software for any
    8  * purpose with or without fee is hereby granted, provided that the above
    9  * copyright notice and this permission notice appear in all copies.
   10  *
   11  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   13  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   14  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   15  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   16  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   17  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   18  */
   19 
   20 #include <sys/cdefs.h>
   21 __FBSDID("$FreeBSD$");
   22 
   23 /*
   24  * PCI/Cardbus front-end for the Ralink RT2560/RT2561/RT2561S/RT2661 driver.
   25  */
   26 
   27 #include <sys/param.h>
   28 #include <sys/sysctl.h>
   29 #include <sys/sockio.h>
   30 #include <sys/mbuf.h>
   31 #include <sys/kernel.h>
   32 #include <sys/socket.h>
   33 #include <sys/systm.h>
   34 #include <sys/malloc.h>
   35 #include <sys/module.h>
   36 #include <sys/bus.h>
   37 #include <sys/endian.h>
   38 
   39 #include <machine/bus.h>
   40 #include <machine/resource.h>
   41 #include <sys/rman.h>
   42 
   43 #include <net/bpf.h>
   44 #include <net/if.h>
   45 #include <net/if_arp.h>
   46 #include <net/ethernet.h>
   47 #include <net/if_dl.h>
   48 #include <net/if_media.h>
   49 #include <net/if_types.h>
   50 
   51 #include <net80211/ieee80211_var.h>
   52 #include <net80211/ieee80211_radiotap.h>
   53 #include <net80211/ieee80211_amrr.h>
   54 
   55 #include <dev/pci/pcireg.h>
   56 #include <dev/pci/pcivar.h>
   57 
   58 #include <dev/ral/rt2560var.h>
   59 #include <dev/ral/rt2661var.h>
   60 #include <dev/ral/rt2860var.h>
   61 
   62 MODULE_DEPEND(ral, pci, 1, 1, 1);
   63 MODULE_DEPEND(ral, firmware, 1, 1, 1);
   64 MODULE_DEPEND(ral, wlan, 1, 1, 1);
   65 MODULE_DEPEND(ral, wlan_amrr, 1, 1, 1);
   66 
   67 struct ral_pci_ident {
   68         uint16_t        vendor;
   69         uint16_t        device;
   70         const char      *name;
   71 };
   72 
   73 static const struct ral_pci_ident ral_pci_ids[] = {
   74         { 0x1432, 0x7708, "Edimax RT2860" },
   75         { 0x1432, 0x7711, "Edimax RT3591" },
   76         { 0x1432, 0x7722, "Edimax RT3591" },
   77         { 0x1432, 0x7727, "Edimax RT2860" },
   78         { 0x1432, 0x7728, "Edimax RT2860" },
   79         { 0x1432, 0x7738, "Edimax RT2860" },
   80         { 0x1432, 0x7748, "Edimax RT2860" },
   81         { 0x1432, 0x7758, "Edimax RT2860" },
   82         { 0x1432, 0x7768, "Edimax RT2860" },
   83         { 0x1462, 0x891a, "MSI RT3090" },
   84         { 0x1814, 0x0201, "Ralink Technology RT2560" },
   85         { 0x1814, 0x0301, "Ralink Technology RT2561S" },
   86         { 0x1814, 0x0302, "Ralink Technology RT2561" },
   87         { 0x1814, 0x0401, "Ralink Technology RT2661" },
   88         { 0x1814, 0x0601, "Ralink Technology RT2860" },
   89         { 0x1814, 0x0681, "Ralink Technology RT2890" },
   90         { 0x1814, 0x0701, "Ralink Technology RT2760" },
   91         { 0x1814, 0x0781, "Ralink Technology RT2790" },
   92         { 0x1814, 0x3060, "Ralink Technology RT3060" },
   93         { 0x1814, 0x3062, "Ralink Technology RT3062" },
   94         { 0x1814, 0x3090, "Ralink Technology RT3090" },
   95         { 0x1814, 0x3091, "Ralink Technology RT3091" },
   96         { 0x1814, 0x3092, "Ralink Technology RT3092" },
   97         { 0x1814, 0x3390, "Ralink Technology RT3390" },
   98         { 0x1814, 0x3562, "Ralink Technology RT3562" },
   99         { 0x1814, 0x3592, "Ralink Technology RT3592" },
  100         { 0x1814, 0x3593, "Ralink Technology RT3593" },
  101         { 0x1814, 0x5390, "Ralink Technology RT5390" },
  102         { 0x1814, 0x539a, "Ralink Technology RT5390" },
  103         { 0x1814, 0x539f, "Ralink Technology RT5390" },
  104         { 0x1a3b, 0x1059, "AWT RT2890" },
  105         { 0, 0, NULL }
  106 };
  107 
  108 static struct ral_opns {
  109         int     (*attach)(device_t, int);
  110         int     (*detach)(void *);
  111         void    (*shutdown)(void *);
  112         void    (*suspend)(void *);
  113         void    (*resume)(void *);
  114         void    (*intr)(void *);
  115 
  116 }  ral_rt2560_opns = {
  117         rt2560_attach,
  118         rt2560_detach,
  119         rt2560_stop,
  120         rt2560_stop,
  121         rt2560_resume,
  122         rt2560_intr
  123 
  124 }, ral_rt2661_opns = {
  125         rt2661_attach,
  126         rt2661_detach,
  127         rt2661_shutdown,
  128         rt2661_suspend,
  129         rt2661_resume,
  130         rt2661_intr
  131 }, ral_rt2860_opns = {
  132         rt2860_attach,
  133         rt2860_detach,
  134         rt2860_shutdown,
  135         rt2860_suspend,
  136         rt2860_resume,
  137         rt2860_intr
  138 };
  139 
  140 struct ral_pci_softc {
  141         union {
  142                 struct rt2560_softc sc_rt2560;
  143                 struct rt2661_softc sc_rt2661;
  144                 struct rt2860_softc sc_rt2860;
  145         } u;
  146 
  147         struct ral_opns         *sc_opns;
  148         int                     irq_rid;
  149         int                     mem_rid;
  150         struct resource         *irq;
  151         struct resource         *mem;
  152         void                    *sc_ih;
  153 };
  154 
  155 static int ral_pci_probe(device_t);
  156 static int ral_pci_attach(device_t);
  157 static int ral_pci_detach(device_t);
  158 static int ral_pci_shutdown(device_t);
  159 static int ral_pci_suspend(device_t);
  160 static int ral_pci_resume(device_t);
  161 
  162 static device_method_t ral_pci_methods[] = {
  163         /* Device interface */
  164         DEVMETHOD(device_probe,         ral_pci_probe),
  165         DEVMETHOD(device_attach,        ral_pci_attach),
  166         DEVMETHOD(device_detach,        ral_pci_detach),
  167         DEVMETHOD(device_shutdown,      ral_pci_shutdown),
  168         DEVMETHOD(device_suspend,       ral_pci_suspend),
  169         DEVMETHOD(device_resume,        ral_pci_resume),
  170 
  171         { 0, 0 }
  172 };
  173 
  174 static driver_t ral_pci_driver = {
  175         "ral",
  176         ral_pci_methods,
  177         sizeof (struct ral_pci_softc)
  178 };
  179 
  180 static devclass_t ral_devclass;
  181 
  182 DRIVER_MODULE(ral, pci, ral_pci_driver, ral_devclass, 0, 0);
  183 
  184 static int
  185 ral_pci_probe(device_t dev)
  186 {
  187         const struct ral_pci_ident *ident;
  188 
  189         for (ident = ral_pci_ids; ident->name != NULL; ident++) {
  190                 if (pci_get_vendor(dev) == ident->vendor &&
  191                     pci_get_device(dev) == ident->device) {
  192                         device_set_desc(dev, ident->name);
  193                         return 0;
  194                 }
  195         }
  196         return ENXIO;
  197 }
  198 
  199 /* Base Address Register */
  200 #define RAL_PCI_BAR0    0x10
  201 
  202 static int
  203 ral_pci_attach(device_t dev)
  204 {
  205         struct ral_pci_softc *psc = device_get_softc(dev);
  206         struct rt2560_softc *sc = &psc->u.sc_rt2560;
  207         int error;
  208 
  209         if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
  210                 device_printf(dev, "chip is in D%d power mode "
  211                     "-- setting to D0\n", pci_get_powerstate(dev));
  212                 pci_set_powerstate(dev, PCI_POWERSTATE_D0);
  213         }
  214 
  215         /* enable bus-mastering */
  216         pci_enable_busmaster(dev);
  217 
  218         switch (pci_get_device(dev)) {
  219         case 0x0201:
  220                 psc->sc_opns = &ral_rt2560_opns;
  221                 break;
  222         case 0x0301:
  223         case 0x0302:
  224         case 0x0401:
  225                 psc->sc_opns = &ral_rt2661_opns;
  226                 break;
  227         default:
  228                 psc->sc_opns = &ral_rt2860_opns;
  229                 break;
  230         }
  231 
  232         psc->mem_rid = RAL_PCI_BAR0;
  233         psc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &psc->mem_rid,
  234             RF_ACTIVE);
  235         if (psc->mem == NULL) {
  236                 device_printf(dev, "could not allocate memory resource\n");
  237                 return ENXIO;
  238         }
  239 
  240         sc->sc_st = rman_get_bustag(psc->mem);
  241         sc->sc_sh = rman_get_bushandle(psc->mem);
  242         sc->sc_invalid = 1;
  243         
  244         psc->irq_rid = 0;
  245         psc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &psc->irq_rid,
  246             RF_ACTIVE | RF_SHAREABLE);
  247         if (psc->irq == NULL) {
  248                 device_printf(dev, "could not allocate interrupt resource\n");
  249                 return ENXIO;
  250         }
  251 
  252         error = (*psc->sc_opns->attach)(dev, pci_get_device(dev));
  253         if (error != 0)
  254                 return error;
  255 
  256         /*
  257          * Hook our interrupt after all initialization is complete.
  258          */
  259         error = bus_setup_intr(dev, psc->irq, INTR_TYPE_NET | INTR_MPSAFE,
  260             NULL, psc->sc_opns->intr, psc, &psc->sc_ih);
  261         if (error != 0) {
  262                 device_printf(dev, "could not set up interrupt\n");
  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         (*psc->sc_opns->detach)(psc);
  280 
  281         bus_generic_detach(dev);
  282         bus_teardown_intr(dev, psc->irq, psc->sc_ih);
  283         bus_release_resource(dev, SYS_RES_IRQ, psc->irq_rid, psc->irq);
  284 
  285         bus_release_resource(dev, SYS_RES_MEMORY, psc->mem_rid, psc->mem);
  286 
  287         return 0;
  288 }
  289 
  290 static int
  291 ral_pci_shutdown(device_t dev)
  292 {
  293         struct ral_pci_softc *psc = device_get_softc(dev);
  294 
  295         (*psc->sc_opns->shutdown)(psc);
  296 
  297         return 0;
  298 }
  299 
  300 static int
  301 ral_pci_suspend(device_t dev)
  302 {
  303         struct ral_pci_softc *psc = device_get_softc(dev);
  304 
  305         (*psc->sc_opns->suspend)(psc);
  306 
  307         return 0;
  308 }
  309 
  310 static int
  311 ral_pci_resume(device_t dev)
  312 {
  313         struct ral_pci_softc *psc = device_get_softc(dev);
  314 
  315         (*psc->sc_opns->resume)(psc);
  316 
  317         return 0;
  318 }
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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
