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yaml --- r: 150808 b: refs/heads/master c: e6a3b61 h: refs/heads/master v: v3
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Tobias Doerffel
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John W. Linville
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Jun 10, 2009
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| --- | ||
| refs/heads/master: 207ee1621722876bb79828689582bf77fd1be200 | ||
| refs/heads/master: e6a3b61681dcb963e6465ffbc4330b44824f35e3 |
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| /* | ||
| * RFKILL support for ath5k | ||
| * | ||
| * Copyright (c) 2009 Tobias Doerffel <tobias.doerffel@gmail.com> | ||
| * | ||
| * All rights reserved. | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following conditions | ||
| * are met: | ||
| * 1. Redistributions of source code must retain the above copyright | ||
| * notice, this list of conditions and the following disclaimer, | ||
| * without modification. | ||
| * 2. Redistributions in binary form must reproduce at minimum a disclaimer | ||
| * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any | ||
| * redistribution must be conditioned upon including a substantially | ||
| * similar Disclaimer requirement for further binary redistribution. | ||
| * 3. Neither the names of the above-listed copyright holders nor the names | ||
| * of any contributors may be used to endorse or promote products derived | ||
| * from this software without specific prior written permission. | ||
| * | ||
| * NO WARRANTY | ||
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
| * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
| * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY | ||
| * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL | ||
| * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, | ||
| * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | ||
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | ||
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER | ||
| * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | ||
| * THE POSSIBILITY OF SUCH DAMAGES. | ||
| */ | ||
|
|
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| #include "base.h" | ||
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| static inline void ath5k_rfkill_disable(struct ath5k_softc *sc) | ||
| { | ||
| ATH5K_DBG(sc, ATH5K_DEBUG_ANY, "rfkill disable (gpio:%d polarity:%d)\n", | ||
| sc->rf_kill.gpio, sc->rf_kill.polarity); | ||
| ath5k_hw_set_gpio_output(sc->ah, sc->rf_kill.gpio); | ||
| ath5k_hw_set_gpio(sc->ah, sc->rf_kill.gpio, !sc->rf_kill.polarity); | ||
| } | ||
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| static inline void ath5k_rfkill_enable(struct ath5k_softc *sc) | ||
| { | ||
| ATH5K_DBG(sc, ATH5K_DEBUG_ANY, "rfkill enable (gpio:%d polarity:%d)\n", | ||
| sc->rf_kill.gpio, sc->rf_kill.polarity); | ||
| ath5k_hw_set_gpio_output(sc->ah, sc->rf_kill.gpio); | ||
| ath5k_hw_set_gpio(sc->ah, sc->rf_kill.gpio, sc->rf_kill.polarity); | ||
| } | ||
|
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| static inline void ath5k_rfkill_set_intr(struct ath5k_softc *sc, bool enable) | ||
| { | ||
| struct ath5k_hw *ah = sc->ah; | ||
| ath5k_hw_set_gpio_input(ah, sc->rf_kill.gpio); | ||
| ah->ah_gpio[0] = ath5k_hw_get_gpio(ah, sc->rf_kill.gpio); | ||
| ath5k_hw_set_gpio_intr(ah, sc->rf_kill.gpio, enable ? | ||
| !!ah->ah_gpio[0] : !ah->ah_gpio[0]); | ||
| } | ||
|
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| static bool | ||
| ath5k_is_rfkill_set(struct ath5k_softc *sc) | ||
| { | ||
| /* configuring GPIO for input for some reason disables rfkill */ | ||
| /*ath5k_hw_set_gpio_input(sc->ah, sc->rf_kill.gpio);*/ | ||
| return ath5k_hw_get_gpio(sc->ah, sc->rf_kill.gpio) == | ||
| sc->rf_kill.polarity; | ||
| } | ||
|
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| static void | ||
| ath5k_tasklet_rfkill_toggle(unsigned long data) | ||
| { | ||
| struct ath5k_softc *sc = (void *)data; | ||
| bool blocked; | ||
|
|
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| blocked = ath5k_is_rfkill_set(sc); | ||
| wiphy_rfkill_set_hw_state(sc->hw->wiphy, blocked); | ||
| } | ||
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| void | ||
| ath5k_rfkill_hw_start(struct ath5k_hw *ah) | ||
| { | ||
| struct ath5k_softc *sc = ah->ah_sc; | ||
|
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| /* read rfkill GPIO configuration from EEPROM header */ | ||
| sc->rf_kill.gpio = ah->ah_capabilities.cap_eeprom.ee_rfkill_pin; | ||
| sc->rf_kill.polarity = ah->ah_capabilities.cap_eeprom.ee_rfkill_pol; | ||
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| tasklet_init(&sc->rf_kill.toggleq, ath5k_tasklet_rfkill_toggle, | ||
| (unsigned long)sc); | ||
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| ath5k_rfkill_disable(sc); | ||
|
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| /* enable interrupt for rfkill switch */ | ||
| if (AR5K_EEPROM_HDR_RFKILL(ah->ah_capabilities.cap_eeprom.ee_header)) { | ||
| ath5k_rfkill_set_intr(sc, true); | ||
| } | ||
| } | ||
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| void | ||
| ath5k_rfkill_hw_stop(struct ath5k_hw *ah) | ||
| { | ||
| struct ath5k_softc *sc = ah->ah_sc; | ||
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| /* disable interrupt for rfkill switch */ | ||
| if (AR5K_EEPROM_HDR_RFKILL(ah->ah_capabilities.cap_eeprom.ee_header)) { | ||
| ath5k_rfkill_set_intr(sc, false); | ||
| } | ||
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| tasklet_kill(&sc->rf_kill.toggleq); | ||
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| /* enable RFKILL when stopping HW so Wifi LED is turned off */ | ||
| ath5k_rfkill_enable(sc); | ||
| } | ||
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