f35d63bc21
The GPIO APIs for ypr0 and ypr1 targets was messy, requiring a direct communication via several ioctls calls. Since it is planned to add support to other devices, more GPIO are going to be used. For that reason the functions shall be clear and easy to use. Change-Id: Ia2304335e1fed1305cc2c4320bd4c097e13079be
88 lines
2.6 KiB
C
88 lines
2.6 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id: button-sdl.c 30482 2011-09-08 14:53:28Z kugel $
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*
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* Copyright (C) 2011 Lorenzo Miori
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "config.h"
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#include "button.h"
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#include "kernel.h"
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#include "system.h"
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#include "button-target.h"
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#include "gpio-ypr.h" /* For headphones sense and buttons */
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int button_read_device(void)
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{
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int key = BUTTON_NONE;
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/* Check for all the keys */
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if (!gpio_get(GPIO_USER_KEY)) {
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key |= BUTTON_USER;
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}
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if (!gpio_get(GPIO_CENTRAL_KEY)) {
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key |= BUTTON_SELECT;
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}
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if (!gpio_get(GPIO_UP_KEY)) {
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key |= BUTTON_UP;
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}
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if (!gpio_get(GPIO_DOWN_KEY)) {
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key |= BUTTON_DOWN;
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}
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if (!gpio_get(GPIO_LEFT_KEY)) {
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key |= BUTTON_LEFT;
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}
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if (!gpio_get(GPIO_RIGHT_KEY)) {
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key |= BUTTON_RIGHT;
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}
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if (!gpio_get(GPIO_MENU_KEY)) {
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key |= BUTTON_MENU;
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}
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if (!gpio_get(GPIO_BACK_KEY)) {
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key |= BUTTON_BACK;
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}
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if (gpio_get(GPIO_POWER_KEY)) {
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key |= BUTTON_POWER;
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}
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return key;
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}
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bool headphones_inserted(void)
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{
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/* GPIO low - 0 - means headphones inserted */
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return !gpio_get(GPIO_HEADPHONE_SENSE);
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}
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void button_init_device(void)
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{
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/* Setup GPIO pin for headphone sense, copied from OF */
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gpio_set_iomux(GPIO_HEADPHONE_SENSE, CONFIG_GPIO);
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gpio_set_pad(GPIO_HEADPHONE_SENSE, PAD_CTL_47K_PU);
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gpio_direction_input(GPIO_HEADPHONE_SENSE);
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/* No need to initialize any GPIO pin, since this is done loading the r0Btn module */
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}
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#ifdef BUTTON_DRIVER_CLOSE
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/* I'm not sure it's called at shutdown...give a check! */
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void button_close_device(void)
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{
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/* Don't know the precise meaning, but it's done as in the OF, so copied there */
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gpio_free_iomux(GPIO_HEADPHONE_SENSE, CONFIG_GPIO);
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}
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#endif /* BUTTON_DRIVER_CLOSE */
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