51 lines
2.1 KiB
C
51 lines
2.1 KiB
C
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/*
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* Copyright (c) 2011, The Linux Foundation. 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 are met:
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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 the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of The Linux Foundation nor
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* the names of its contributors may be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include <reg.h>
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#include <platform/gpio.h>
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#include <platform/iomap.h>
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/* GPIO that controls the Dip Switch
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* for FASTBOOT.
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*/
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#define DIP_SWITCH_GPIO 49
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/*
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* Fake keypad for 9x15
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* Returns 0 if dip switch is off, 1 if on
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*/
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int fake_key_get_state(void)
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{
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int ret;
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/* GPIO 49 connects to Boot Config5 */
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gpio_tlmm_config(DIP_SWITCH_GPIO, 0, GPIO_OUTPUT, GPIO_PULL_DOWN,
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GPIO_2MA, GPIO_ENABLE);
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ret = readl(GPIO_IN_OUT_ADDR(DIP_SWITCH_GPIO));
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return ret;
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}
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