Fork of Smoothie to port to mbed non-LPC targets.
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Diff: libs/LPC17xx/LPC17xxLib/src/lpc17xx_exti.c
- Revision:
- 3:f151d08d335c
- Parent:
- 2:1df0b61d3b5a
--- a/libs/LPC17xx/LPC17xxLib/src/lpc17xx_exti.c Fri Feb 28 18:52:52 2014 -0800 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,168 +0,0 @@ -#ifdef __LPC17XX__ - -/********************************************************************** -* $Id$ lpc17xx_exti.c 2010-06-18 -*//** -* @file lpc17xx_exti.c -* @brief Contains all functions support for External interrupt firmware -* library on LPC17xx -* @version 3.0 -* @date 18. June. 2010 -* @author NXP MCU SW Application Team -* -* Copyright(C) 2010, NXP Semiconductor -* All rights reserved. -* -*********************************************************************** -* Software that is described herein is for illustrative purposes only -* which provides customers with programming information regarding the -* products. This software is supplied "AS IS" without any warranties. -* NXP Semiconductors assumes no responsibility or liability for the -* use of the software, conveys no license or title under any patent, -* copyright, or mask work right to the product. NXP Semiconductors -* reserves the right to make changes in the software without -* notification. NXP Semiconductors also make no representation or -* warranty that such application will be suitable for the specified -* use without further testing or modification. -**********************************************************************/ - -/* Peripheral group ----------------------------------------------------------- */ -/** @addtogroup EXTI - * @{ - */ - -/* Includes ------------------------------------------------------------------- */ -#include "lpc17xx_exti.h" - -/* If this source file built with example, the LPC17xx FW library configuration - * file in each example directory ("lpc17xx_libcfg.h") must be included, - * otherwise the default FW library configuration file must be included instead - */ -#ifdef __BUILD_WITH_EXAMPLE__ -#include "lpc17xx_libcfg.h" -#else -#include "lpc17xx_libcfg_default.h" -#endif /* __BUILD_WITH_EXAMPLE__ */ - - -#ifdef _EXTI - -/* Public Functions ----------------------------------------------------------- */ -/** @addtogroup EXTI_Public_Functions - * @{ - */ - -/*********************************************************************//** - * @brief Initial for EXT - * - Set EXTINT, EXTMODE, EXTPOLAR registers to default value - * @param[in] None - * @return None - **********************************************************************/ -void EXTI_Init(void) -{ - LPC_SC->EXTINT = 0xF; - LPC_SC->EXTMODE = 0x0; - LPC_SC->EXTPOLAR = 0x0; -} - - -/*********************************************************************//** -* @brief Close EXT -* @param[in] None -* @return None -**********************************************************************/ -void EXTI_DeInit(void) -{ - ; -} - -/*********************************************************************//** - * @brief Configuration for EXT - * - Set EXTINT, EXTMODE, EXTPOLAR register - * @param[in] EXTICfg Pointer to a EXTI_InitTypeDef structure - * that contains the configuration information for the - * specified external interrupt - * @return None - **********************************************************************/ -void EXTI_Config(EXTI_InitTypeDef *EXTICfg) -{ - LPC_SC->EXTINT = 0x0; - EXTI_SetMode(EXTICfg->EXTI_Line, EXTICfg->EXTI_Mode); - EXTI_SetPolarity(EXTICfg->EXTI_Line, EXTICfg->EXTI_polarity); -} - -/*********************************************************************//** -* @brief Set mode for EXTI pin -* @param[in] EXTILine external interrupt line, should be: -* - EXTI_EINT0: external interrupt line 0 -* - EXTI_EINT1: external interrupt line 1 -* - EXTI_EINT2: external interrupt line 2 -* - EXTI_EINT3: external interrupt line 3 -* @param[in] mode external mode, should be: -* - EXTI_MODE_LEVEL_SENSITIVE -* - EXTI_MODE_EDGE_SENSITIVE -* @return None -*********************************************************************/ -void EXTI_SetMode(EXTI_LINE_ENUM EXTILine, EXTI_MODE_ENUM mode) -{ - if(mode == EXTI_MODE_EDGE_SENSITIVE) - { - LPC_SC->EXTMODE |= (1 << EXTILine); - } - else if(mode == EXTI_MODE_LEVEL_SENSITIVE) - { - LPC_SC->EXTMODE &= ~(1 << EXTILine); - } -} - -/*********************************************************************//** -* @brief Set polarity for EXTI pin -* @param[in] EXTILine external interrupt line, should be: -* - EXTI_EINT0: external interrupt line 0 -* - EXTI_EINT1: external interrupt line 1 -* - EXTI_EINT2: external interrupt line 2 -* - EXTI_EINT3: external interrupt line 3 -* @param[in] polarity external polarity value, should be: -* - EXTI_POLARITY_LOW_ACTIVE_OR_FALLING_EDGE -* - EXTI_POLARITY_LOW_ACTIVE_OR_FALLING_EDGE -* @return None -*********************************************************************/ -void EXTI_SetPolarity(EXTI_LINE_ENUM EXTILine, EXTI_POLARITY_ENUM polarity) -{ - if(polarity == EXTI_POLARITY_HIGH_ACTIVE_OR_RISING_EDGE) - { - LPC_SC->EXTPOLAR |= (1 << EXTILine); - } - else if(polarity == EXTI_POLARITY_LOW_ACTIVE_OR_FALLING_EDGE) - { - LPC_SC->EXTPOLAR &= ~(1 << EXTILine); - } -} - -/*********************************************************************//** -* @brief Clear External interrupt flag -* @param[in] EXTILine external interrupt line, should be: -* - EXTI_EINT0: external interrupt line 0 -* - EXTI_EINT1: external interrupt line 1 -* - EXTI_EINT2: external interrupt line 2 -* - EXTI_EINT3: external interrupt line 3 -* @return None -*********************************************************************/ -void EXTI_ClearEXTIFlag(EXTI_LINE_ENUM EXTILine) -{ - LPC_SC->EXTINT |= (1 << EXTILine); -} - -/** - * @} - */ - -#endif /* _EXTI */ - -/** - * @} - */ - -/* --------------------------------- End Of File ------------------------------ */ - -#endif /* __LPC17XX__ */