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57 lines
1.2 KiB
57 lines
1.2 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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Broadcom B43 wireless driver |
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RFKILL support |
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Copyright (c) 2007 Michael Buesch <[email protected]> |
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*/ |
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#include "b43.h" |
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/* Returns TRUE, if the radio is enabled in hardware. */ |
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bool b43_is_hw_radio_enabled(struct b43_wldev *dev) |
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{ |
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return !(b43_read32(dev, B43_MMIO_RADIO_HWENABLED_HI) |
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& B43_MMIO_RADIO_HWENABLED_HI_MASK); |
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} |
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/* The poll callback for the hardware button. */ |
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void b43_rfkill_poll(struct ieee80211_hw *hw) |
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{ |
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struct b43_wl *wl = hw_to_b43_wl(hw); |
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struct b43_wldev *dev = wl->current_dev; |
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bool enabled; |
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bool brought_up = false; |
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mutex_lock(&wl->mutex); |
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if (unlikely(b43_status(dev) < B43_STAT_INITIALIZED)) { |
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if (b43_bus_powerup(dev, 0)) { |
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mutex_unlock(&wl->mutex); |
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return; |
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} |
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b43_device_enable(dev, 0); |
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brought_up = true; |
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} |
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enabled = b43_is_hw_radio_enabled(dev); |
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if (unlikely(enabled != dev->radio_hw_enable)) { |
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dev->radio_hw_enable = enabled; |
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b43info(wl, "Radio hardware status changed to %s\n", |
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enabled ? "ENABLED" : "DISABLED"); |
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wiphy_rfkill_set_hw_state(hw->wiphy, !enabled); |
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if (enabled != dev->phy.radio_on) |
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b43_software_rfkill(dev, !enabled); |
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} |
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if (brought_up) { |
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b43_device_disable(dev, 0); |
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b43_bus_may_powerdown(dev); |
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} |
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mutex_unlock(&wl->mutex); |
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}
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