osd-contiki/cpu/stm32w108/hal/micro/cortexm3/button.c
2010-10-25 09:03:38 +00:00

30 lines
827 B
C

/** @file /hal/micro/cortexm3/button.c
* @brief button APIs
*
* <!--(C) COPYRIGHT 2010 STMicroelectronics. All rights reserved. -->
*/
#include PLATFORM_HEADER
#include BOARD_HEADER
#include "hal/micro/button.h"
#include "hal/micro/micro-common.h"
#include "hal/micro/cortexm3/micro-common.h"
void halInitButton(void)
{
/* Set GPIO pin to PUD (input pull-up or pull-down) for button S1 */
halGpioConfig(BUTTON_S1,GPIOCFG_IN_PUD);
/* Set the button S1 gpio pin to pull-up */
BUTTON_S1_OUTPUT_GPIO |= GPIOOUT_PULLUP << BUTTON_S1_GPIO_PIN;
}/* end halInitButton() */
int8u halGetButtonStatus(HalBoardButton button)
{
if (button == BUTTON_S1)
return (BUTTON_S1_INPUT_GPIO & (1<<BUTTON_S1_GPIO_PIN)) ? BUTTON_RELEASED : BUTTON_PRESSED;
else
return BUTTON_UNKNOWN;
}/* end halGetButtonStatus()*/