src/add-ons/kernel/drivers/network/wlan/ralink2860/glue.c

   1 /*
   2  * Copyright 2010, Colin Günther, coling@gmx.de.
   3  * All Rights Reserved. Distributed under the terms of the MIT License.
   4  */
   5
   6
   7 #include <sys/bus.h>
   8 #include <sys/kernel.h>
   9
  10 #include <dev/pci/pcivar.h>
  11
  12 #include <machine/bus.h>
  13
  14 #include <net/if.h>
  15 #include <net/if_media.h>
  16
  17 #include <net80211/ieee80211_var.h>
  18
  19 #include "dev/rt2860/rt2860_io.h"
  20 #include "dev/rt2860/rt2860_reg.h"
  21 #include "dev/rt2860/rt2860_softc.h"
  22
  23
  24 HAIKU_FBSD_WLAN_DRIVER_GLUE(ralink2860, rt2860, pci)
  25 HAIKU_DRIVER_REQUIREMENTS(FBSD_TASKQUEUES | FBSD_WLAN);
  26
  27 HAIKU_FIRMWARE_VERSION(0);
  28 NO_HAIKU_FIRMWARE_NAME_MAP();
  29
  30 NO_HAIKU_FBSD_MII_DRIVER();
  31
  32
  33 static void rt2860_intr_enable(struct rt2860_softc* sc, uint32_t intr_mask)
  34 {
  35         uint32_t tmp;
  36
  37         sc->intr_disable_mask &= ~intr_mask;
  38
  39         tmp = sc->intr_enable_mask & ~sc->intr_disable_mask;
  40
  41         rt2860_io_mac_write(sc, RT2860_REG_SCHDMA_INT_MASK, tmp);
  42 }
  43
  44
  45 int
  46 HAIKU_CHECK_DISABLE_INTERRUPTS(device_t dev)
  47 {
  48         struct rt2860_softc* sc = (struct rt2860_softc*)device_get_softc(dev);
  49         struct ifnet* ifp = sc->ifp;
  50
  51         // acknowledge interrupts
  52         uint32_t status = rt2860_io_mac_read(sc, RT2860_REG_SCHDMA_INT_STATUS);
  53         rt2860_io_mac_write(sc, RT2860_REG_SCHDMA_INT_STATUS, status);
  54
  55         if (status == 0xffffffff || status == 0)
  56                 // device likely went away || not for us
  57                 return 0;
  58
  59         sc->interrupts++;
  60
  61         if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
  62                 return 0;
  63
  64         rt2860_io_mac_write(sc, RT2860_REG_SCHDMA_INT_MASK, 0);
  65                 // Disable interrupts
  66
  67         sc->interrupt_status = status;
  68
  69         return 1;
  70 }
  71
  72
  73 void
  74 HAIKU_REENABLE_INTERRUPTS(device_t dev)
  75 {
  76         struct rt2860_softc* sc = (struct rt2860_softc*)device_get_softc(dev);
  77
  78         rt2860_intr_enable(sc, 0);
  79 }