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37 lines
1018 B
C
37 lines
1018 B
C
/** @file /hal/micro/cortexm3/button.c
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* @brief button APIs
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*
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* <!--(C) COPYRIGHT 2010 STMicroelectronics. All rights reserved. -->
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*/
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#include PLATFORM_HEADER
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#include BOARD_HEADER
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#include "hal/micro/button.h"
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#include "hal/micro/micro-common.h"
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#include "hal/micro/cortexm3/micro-common.h"
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void halInitButton(void)
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{
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int8u i;
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/* Configure GPIO for BUTTONSs */
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ButtonResourceType *buttons = (ButtonResourceType *) boardDescription->io->buttons;
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for (i = 0; i < boardDescription->buttons; i++) {
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halGpioConfig(PORTx_PIN(buttons[i].gpioPort, buttons[i].gpioPin), GPIOCFG_IN_PUD);
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halGpioSet(PORTx_PIN(buttons[i].gpioPort, buttons[i].gpioPin), GPIOOUT_PULLUP);
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}
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}/* end halInitButton() */
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int8u halGetButtonStatus(HalBoardButton button)
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{
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int8u port = (button >> 3) & 0xf;
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int8u pin = button & 0x7;
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if (button != DUMMY_BUTTON)
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{
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return (BUTTON_INPUT_GPIO(port) & (1 << pin)) ? BUTTON_RELEASED : BUTTON_PRESSED;
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}
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return BUTTON_UNKNOWN;
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}/* end halGetButtonStatus()*/
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