135 lines
4.4 KiB
C
135 lines
4.4 KiB
C
/******************************************************************************
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*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
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* USA
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*
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* The full GNU General Public License is included in this distribution
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* in the file called COPYING.
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*
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* Contact Information:
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* Intel Linux Wireless <ilw@linux.intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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* BSD LICENSE
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*
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* Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*****************************************************************************/
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#include <linux/leds.h>
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#include "iwl-io.h"
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#include "iwl-csr.h"
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#include "mvm.h"
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/* Set led register on */
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static void iwl_mvm_led_enable(struct iwl_mvm *mvm)
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{
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iwl_write32(mvm->trans, CSR_LED_REG, CSR_LED_REG_TURN_ON);
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}
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/* Set led register off */
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static void iwl_mvm_led_disable(struct iwl_mvm *mvm)
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{
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iwl_write32(mvm->trans, CSR_LED_REG, CSR_LED_REG_TURN_OFF);
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}
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static void iwl_led_brightness_set(struct led_classdev *led_cdev,
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enum led_brightness brightness)
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{
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struct iwl_mvm *mvm = container_of(led_cdev, struct iwl_mvm, led);
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if (brightness > 0)
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iwl_mvm_led_enable(mvm);
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else
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iwl_mvm_led_disable(mvm);
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}
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int iwl_mvm_leds_init(struct iwl_mvm *mvm)
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{
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int mode = iwlwifi_mod_params.led_mode;
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int ret;
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switch (mode) {
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case IWL_LED_DEFAULT:
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case IWL_LED_RF_STATE:
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mode = IWL_LED_RF_STATE;
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break;
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case IWL_LED_DISABLE:
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IWL_INFO(mvm, "Led disabled\n");
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return 0;
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default:
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return -EINVAL;
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};
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mvm->led.name = kasprintf(GFP_KERNEL, "%s-led",
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wiphy_name(mvm->hw->wiphy));
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mvm->led.brightness_set = iwl_led_brightness_set;
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mvm->led.max_brightness = 1;
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if (mode == IWL_LED_RF_STATE)
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mvm->led.default_trigger =
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ieee80211_get_radio_led_name(mvm->hw);
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ret = led_classdev_register(mvm->trans->dev, &mvm->led);
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if (ret) {
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kfree(mvm->led.name);
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IWL_INFO(mvm, "Failed to enable led\n");
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return ret;
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}
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return 0;
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}
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void iwl_mvm_leds_exit(struct iwl_mvm *mvm)
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{
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if (iwlwifi_mod_params.led_mode == IWL_LED_DISABLE)
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return;
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led_classdev_unregister(&mvm->led);
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kfree(mvm->led.name);
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}
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