253 lines
6.7 KiB
C
253 lines
6.7 KiB
C
/**************************************************************************!
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* 技术讨论：QQ群 123763203
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* 官网 ：www.navota.com
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*
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* @file kbi.c
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* @brief 键盘中断(KBI)函数库
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* @author Navota
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* @date 2017-1-1
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****************************************************************************/
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#include "common.h"
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#include "kbi.h"
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/****************************************************************************!
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* @ 存放KBI回调函数接口
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****************************************************************************/
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KBI_CallbackType KBI_Callback[KBI_MAX_NO] = {(KBI_CallbackType)NULL};
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/*****************************************************************************//*!
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*
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* @brief 初始化KBI模块.
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*
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* @param[in] pKBI 指向KBI模块.
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* @param[in] pConfig 指向KBI配置结构体
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*
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* @return none.
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*
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* @see KBI_DeInit.
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*
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*****************************************************************************/
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void KBI_Init(KBI_Type *pKBI, KBI_ConfigType *pConfig)
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{
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#if defined(CPU_NV32)
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uint16_t i;
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uint8_t sc = 0;
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uint8_t u8Port;
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uint8_t u8PinPos;
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uint16_t u16PinMapping[KBI_MAX_NO][8] =
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{
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{
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0, 1, 2, 3, 8, 9, 10, 11 /* KBI0中断输入引脚在GPIOA寄存器中的位置*/
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},
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{
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24, 25, 26, 27, 28, 29, 30, 31 /*KBI1中断输入引脚在GPIOA寄存器中的位置*/
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}
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};
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#elif defined(CPU_NV32M3)
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uint16_t i;
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uint8_t sc = 0;
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uint8_t u8Port;
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uint8_t u8PinPos;
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uint16_t u16PinMapping[KBI_MAX_NO][8] =
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{
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{
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0, 1, 2, 3, 8, 9, 10, 11 /* KBI0中断输入引脚在GPIOA寄存器中的位置*/
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},
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{
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20, 21, 16, 17, 18, 19, 12, 13 /* KBI1中断输入引脚在GPIOA寄存器中的位置*/
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}
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};
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#elif defined(CPU_NV32M4)
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uint32_t i;
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uint32_t sc = 0;
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uint32_t u8Port;
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uint32_t u8PinPos;
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uint32_t u16PinMapping[KBI_MAX_NO][KBI_MAX_PINS_PER_PORT] =
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{
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{/* KBI0P0~KBI0P31 中断输入引脚在GPIOA寄存器中的位置 */
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
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},
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{/* KBI1P0~KBI1P31中断输入引脚在GPIOA寄存器中的位置 */
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
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}
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};
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#endif
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if(KBI0 == pKBI)
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{
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SIM->SCGC |= SIM_SCGC_KBI0_MASK; /* 使能KBI0模块的总线时钟 */
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u8Port = 0;
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}
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else if (KBI1 == pKBI)
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{
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SIM->SCGC |= SIM_SCGC_KBI1_MASK; /* 使能KBI1模块的总线时钟 */
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u8Port = 1;
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}
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/*设定KBI中断检测模式*/
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sc = pConfig->sBits.bMode;
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pKBI->SC = sc;
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/* 配置KBI中断输入引脚 */
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for (i = 0; i < KBI_MAX_PINS_PER_PORT; i++)
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{
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if(pConfig->sPin[i].bEn)
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{
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pKBI->PE |= (1<<i); /* 使能I/O引脚为KBI中断输入引脚*/
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pKBI->ES = (pKBI->ES & ~(1<<i)) | (pConfig->sPin[i].bEdge << i);
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u8PinPos = u16PinMapping[u8Port][i];
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ASSERT(!(u8PinPos & 0x80));
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#if defined(CPU_NV32)|| defined(CPU_NV32M3)
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FGPIOA->PIDR &= ~(1<<u8PinPos); /* 使能GPIO输入*/
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FGPIOA->PDDR &= ~(1<<u8PinPos); /* 引脚配置为通用输入 */
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PORT->PUEL |= (1<<u8PinPos); /* 使能内部上拉*/
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#elif defined(CPU_NV32M4)
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if (u8Port == 0) /* KBI0 */
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{
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FGPIOA->PIDR &= ~(1<<u8PinPos); /* 使能GPIO输入*/
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FGPIOA->PDDR &= ~(1<<u8PinPos); /* 引脚配置为通用输入 */
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PORT->PUE0 |= (1<<u8PinPos); /* 使能内部上拉*/
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}
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else if (u8Port == 1) /* KBI1 */
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{
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FGPIOB->PIDR &= ~(1<<u8PinPos); /* 使能GPIO输入*/
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FGPIOB->PDDR &= ~(1<<u8PinPos); /* 引脚配置为通用输入 */
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PORT->PUE1 |= (1<<u8PinPos); /* 使能内部上拉*/
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}
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#endif
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}
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}
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#if defined(CPU_NV32M4)
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/*Reset KBI_SP register*/
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sc = pConfig->sBits.bRstKbsp<<KBI_SC_RSTKBSP_SHIFT;
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pKBI->SC |= sc;
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/*Real KBI_SP register enable*/
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sc = pConfig->sBits.bKbspEn<<KBI_SC_KBSPEN_SHIFT;
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pKBI->SC |= sc;
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#endif
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/*清除中断标志位*/
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pKBI->SC = sc;
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/* 使能KBI中断 */
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if(pConfig->sBits.bIntEn)
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{
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pKBI->SC |= KBI_SC_KBIE_MASK;
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if(KBI0 == pKBI)
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{
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NVIC_EnableIRQ(KBI0_IRQn);
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}
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else
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{
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NVIC_EnableIRQ(KBI1_IRQn);
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}
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}
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}
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/*****************************************************************************//*!
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*
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* @brief 设置KBI回调函数，通过中断服务函数调用
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*
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* @param[in] pKBI 指向KBI模块.
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* @param[in] pfnCallback 指向回调函数.
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*
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* @return none.
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*
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* @ Pass/ Fail criteria: none.
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*
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*****************************************************************************/
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void KBI_SetCallback(KBI_Type *pKBI, KBI_CallbackType pfnCallback)
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{
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if(KBI0 == pKBI)
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{
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KBI_Callback[0] = pfnCallback;
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}
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else
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{
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KBI_Callback[1] = pfnCallback;
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}
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}
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/*****************************************************************************//*!
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*
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* @brief 复位KBI模块.
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*
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* @param[in] pKBI 指向KBI模块.
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*
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* @return none.
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*
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* @see KBI_Init.
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*
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*****************************************************************************/
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void KBI_DeInit(KBI_Type *pKBI)
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{
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if(KBI0 == pKBI)
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{
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NVIC_DisableIRQ(KBI0_IRQn);
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}
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else
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{
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NVIC_DisableIRQ(KBI1_IRQn);
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}
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pKBI->PE = 0;
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pKBI->SC = 0;
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pKBI->ES = 0;
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if(KBI0 == pKBI)
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{
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SIM->SCGC &= ~SIM_SCGC_KBI0_MASK; /* 禁用KBI0模块总线时钟 */
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}
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else
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{
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SIM->SCGC &= ~SIM_SCGC_KBI1_MASK; /* 禁用KBI1模块总线时钟 */
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}
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}
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/*****************************************************************************//*!
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*
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* @brief KBI0模块中断服务函数.
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*
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* @param none.
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*
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* @return none.
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*
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*****************************************************************************/
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void KBI0_Isr(void)
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{
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KBI0->SC |= KBI_SC_KBACK_MASK; /*清除中断标志位 */
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if(KBI_Callback[0])
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{
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KBI_Callback[0]();
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}
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}
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/*****************************************************************************//*!
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*
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* @brief KBI1模块中断服务函数
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*
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* @param none.
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*
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* @return none.
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*
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*
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*****************************************************************************/
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void KBI1_Isr(void)
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{
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KBI1->SC |= KBI_SC_KBACK_MASK; /*清除中断标志位*/
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if(KBI_Callback[1])
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{
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KBI_Callback[1]();
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}
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}
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