cregit-Linux how code gets into the kernel

Release 4.11 drivers/net/wireless/broadcom/b43legacy/rfkill.c

/*

  Broadcom B43 wireless driver
  RFKILL support

  Copyright (c) 2007 Michael Buesch <m@bues.ch>

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; see the file COPYING.  If not, write to
  the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
  Boston, MA 02110-1301, USA.

*/

#include "radio.h"
#include "b43legacy.h"


/* Returns TRUE, if the radio is enabled in hardware. */

bool b43legacy_is_hw_radio_enabled(struct b43legacy_wldev *dev) { if (dev->dev->id.revision >= 3) { if (!(b43legacy_read32(dev, B43legacy_MMIO_RADIO_HWENABLED_HI) & B43legacy_MMIO_RADIO_HWENABLED_HI_MASK)) return true; } else { /* To prevent CPU fault on PPC, do not read a register * unless the interface is started; however, on resume * for hibernation, this routine is entered early. When * that happens, unconditionally return TRUE. */ if (b43legacy_status(dev) < B43legacy_STAT_STARTED) return true; if (b43legacy_read16(dev, B43legacy_MMIO_RADIO_HWENABLED_LO) & B43legacy_MMIO_RADIO_HWENABLED_LO_MASK) return true; } return false; }

Contributors

PersonTokensPropCommitsCommitProp
Larry Finger6689.19%360.00%
Joe Perches45.41%120.00%
Rafał Miłecki45.41%120.00%
Total74100.00%5100.00%

/* The poll callback for the hardware button. */
void b43legacy_rfkill_poll(struct ieee80211_hw *hw) { struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw); struct b43legacy_wldev *dev = wl->current_dev; struct ssb_bus *bus = dev->dev->bus; bool enabled; bool brought_up = false; mutex_lock(&wl->mutex); if (unlikely(b43legacy_status(dev) < B43legacy_STAT_INITIALIZED)) { if (ssb_bus_powerup(bus, 0)) { mutex_unlock(&wl->mutex); return; } ssb_device_enable(dev->dev, 0); brought_up = true; } enabled = b43legacy_is_hw_radio_enabled(dev); if (unlikely(enabled != dev->radio_hw_enable)) { dev->radio_hw_enable = enabled; b43legacyinfo(wl, "Radio hardware status changed to %s\n", enabled ? "ENABLED" : "DISABLED"); wiphy_rfkill_set_hw_state(hw->wiphy, !enabled); if (enabled != dev->phy.radio_on) { if (enabled) b43legacy_radio_turn_on(dev); else b43legacy_radio_turn_off(dev, 0); } } if (brought_up) { ssb_device_disable(dev->dev, 0); ssb_bus_may_powerdown(bus); } mutex_unlock(&wl->mutex); }

Contributors

PersonTokensPropCommitsCommitProp
Larry Finger12559.81%350.00%
Johannes Berg8138.76%233.33%
Stefano Brivio31.44%116.67%
Total209100.00%6100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Larry Finger19968.15%440.00%
Johannes Berg8127.74%220.00%
Joe Perches41.37%110.00%
Rafał Miłecki41.37%110.00%
Stefano Brivio31.03%110.00%
Michael Büsch10.34%110.00%
Total292100.00%10100.00%
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