projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 8e9f7529 MB |
1 | /* |
| 2 | ||
| 3 | Broadcom B43 wireless driver | |
| 4 | RFKILL support | |
| 5 | ||
| 6 | Copyright (c) 2007 Michael Buesch <mb@bu3sch.de> | |
| 7 | ||
| 8 | This program is free software; you can redistribute it and/or modify | |
| 9 | it under the terms of the GNU General Public License as published by | |
| 10 | the Free Software Foundation; either version 2 of the License, or | |
| 11 | (at your option) any later version. | |
| 12 | ||
| 13 | This program is distributed in the hope that it will be useful, | |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 | GNU General Public License for more details. | |
| 17 | ||
| 18 | You should have received a copy of the GNU General Public License | |
| 19 | along with this program; see the file COPYING. If not, write to | |
| 20 | the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, | |
| 21 | Boston, MA 02110-1301, USA. | |
| 22 | ||
| 23 | */ | |
| 24 | ||
| 8e9f7529 | 25 | #include "b43.h" |
| 1a8d1227 | 26 | |
| 8e9f7529 | 27 | |
| 42bb4cd5 | 28 | /* Returns TRUE, if the radio is enabled in hardware. */ |
| f41f3f37 | 29 | bool b43_is_hw_radio_enabled(struct b43_wldev *dev) |
| 8e9f7529 | 30 | { |
| 42bb4cd5 MB |
31 | if (dev->phy.rev >= 3) { |
| 32 | if (!(b43_read32(dev, B43_MMIO_RADIO_HWENABLED_HI) | |
| 33 | & B43_MMIO_RADIO_HWENABLED_HI_MASK)) | |
| 34 | return 1; | |
| 35 | } else { | |
| 36 | if (b43_read16(dev, B43_MMIO_RADIO_HWENABLED_LO) | |
| 37 | & B43_MMIO_RADIO_HWENABLED_LO_MASK) | |
| 38 | return 1; | |
| 8e9f7529 | 39 | } |
| 42bb4cd5 | 40 | return 0; |
| 8e9f7529 MB |
41 | } |
| 42 | ||
| 42bb4cd5 | 43 | /* The poll callback for the hardware button. */ |
| f41f3f37 | 44 | void b43_rfkill_poll(struct ieee80211_hw *hw) |
| 8e9f7529 | 45 | { |
| f41f3f37 JB |
46 | struct b43_wl *wl = hw_to_b43_wl(hw); |
| 47 | struct b43_wldev *dev = wl->current_dev; | |
| 48 | struct ssb_bus *bus = dev->dev->bus; | |
| 42bb4cd5 | 49 | bool enabled; |
| f41f3f37 | 50 | bool brought_up = false; |
| 8e9f7529 | 51 | |
| 42bb4cd5 | 52 | mutex_lock(&wl->mutex); |
| 1a8d1227 | 53 | if (unlikely(b43_status(dev) < B43_STAT_INITIALIZED)) { |
| f41f3f37 JB |
54 | if (ssb_bus_powerup(bus, 0)) { |
| 55 | mutex_unlock(&wl->mutex); | |
| 56 | return; | |
| 57 | } | |
| 58 | ssb_device_enable(dev->dev, 0); | |
| 59 | brought_up = true; | |
| 1a8d1227 | 60 | } |
| f41f3f37 | 61 | |
| 42bb4cd5 | 62 | enabled = b43_is_hw_radio_enabled(dev); |
| f41f3f37 | 63 | |
| 42bb4cd5 MB |
64 | if (unlikely(enabled != dev->radio_hw_enable)) { |
| 65 | dev->radio_hw_enable = enabled; | |
| 66 | b43info(wl, "Radio hardware status changed to %s\n", | |
| 67 | enabled ? "ENABLED" : "DISABLED"); | |
| f41f3f37 | 68 | wiphy_rfkill_set_hw_state(hw->wiphy, !enabled); |
| 19d337df JB |
69 | if (enabled != dev->phy.radio_on) |
| 70 | b43_software_rfkill(dev, !enabled); | |
| 35c7e660 | 71 | } |
| 8e9f7529 | 72 | |
| f41f3f37 JB |
73 | if (brought_up) { |
| 74 | ssb_device_disable(dev->dev, 0); | |
| 75 | ssb_bus_may_powerdown(bus); | |
| 76 | } | |
| 19d337df | 77 | |
| 8e9f7529 | 78 | mutex_unlock(&wl->mutex); |
| 8e9f7529 | 79 | } |