HS191L/USER/Key.c

/*******************************************************************************
 * File Name: Key.c
 * Function Describe:device for the Keys	
 * Relate Module:
 * Explain:	Hardware version is HS110C 
 * Writer:  ShiLiangWen
 * Date:	2015.1.26
  *******************************************************************************/ 
#define THIS_FILE_ID 14
//--------------------------------------------------------------------------------
#include "stm32f10x.h"
#include  "Key.h"
#include <includes.h>

//key value variable
unsigned long g_ulKeyValue;
unsigned char g_ucDKC=0;
unsigned char g_ucUKC=0;
unsigned char g_ucKeyFree=0;
unsigned char g_ucKeyMode=0;
unsigned char g_ucKeyPPTPress=0;
int g_iEncode=0;
unsigned char g_ucEncode[20];
////////////////////////// function declare //////////////////////////////
unsigned long KeyScanPort(void);
//////////////////////////   end declare    //////////////////////////////
/********************************************************************************
KeyInit
*******************************************************************************/
void KeyInit(void)
{
 	GPIO_InitTypeDef GPIO_InitStructure;
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,ENABLE);//复用功能IO 时钟使能  这里必须先使能复用IO的时钟，再关闭JTAG功能
  GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable, ENABLE);  // JTAG-DP Disabled and SW-DP Enabled

	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOB|RCC_APB2Periph_GPIOC, ENABLE);
	/*GPIO先全部设置为上拉输入*/
 	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	//PPT
	GPIO_InitStructure.GPIO_Pin=KEY_PPT_PIN;
	GPIO_Init(KEY_PPT_PORT, &GPIO_InitStructure);
	//PANEL_UP
	GPIO_InitStructure.GPIO_Pin=KEY_PANEL_UP_PIN;
	GPIO_Init(KEY_PANEL_UP_PORT, &GPIO_InitStructure);
	//PANEL_DOWN
	GPIO_InitStructure.GPIO_Pin=KEY_PANEL_DOWN_PIN;
	GPIO_Init(KEY_PANEL_DOWN_PORT, &GPIO_InitStructure);
	//PANEL_OK
	GPIO_InitStructure.GPIO_Pin=KEY_PANEL_OK_PIN;
	GPIO_Init(KEY_PANEL_OK_PORT, &GPIO_InitStructure);
	//PANEL_EXIT
	GPIO_InitStructure.GPIO_Pin=KEY_PANEL_EXIT_PIN;
	GPIO_Init(KEY_PANEL_EXIT_PORT, &GPIO_InitStructure);
	//PANEL_MENU
	GPIO_InitStructure.GPIO_Pin=KEY_PANEL_MENU_PIN;
	GPIO_Init(KEY_PANEL_MENU_PORT, &GPIO_InitStructure);
	//KEY_POWER
	GPIO_InitStructure.GPIO_Pin=KEY_POWER_PIN;
	GPIO_Init(KEY_POWER_PORT, &GPIO_InitStructure);
	//INFO
	GPIO_InitStructure.GPIO_Pin=KEY_INFO_PIN;
	GPIO_Init(KEY_INFO_PORT, &GPIO_InitStructure);	
	//FUNC
	GPIO_InitStructure.GPIO_Pin=KEY_FUNC_PIN;
	GPIO_Init(KEY_FUNC_PORT, &GPIO_InitStructure);		
	//PPT_MIC
	GPIO_InitStructure.GPIO_Pin=KEY_PPT_MIC_PIN;
	GPIO_Init(KEY_PPT_MIC_PORT, &GPIO_InitStructure);

	//LED_BACK_LIGHT
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
	GPIO_InitStructure.GPIO_Pin=KEY_LED_PIN;
	GPIO_Init(KEY_LED_PORT, &GPIO_InitStructure);
	
	g_ucKeyMode=0;//连续触发模式
	RunMake(THIS_FILE_ID);
}

unsigned long g_ulEncode=0;
/********************************************************************************
 * Function:KeyScanPort
 *******************************************************************************/
unsigned long KeyScanPort(void)
{
	unsigned long k1,k2;
	
	k1=GPIOB->IDR;
	k1&=KEY_ALL_PORTB;
	k1<<=16;
	
	k2=GPIOC->IDR;
	k2&=KEY_ALL_PORTC;
	
	return (k1|k2);
}

/***************************************
*flag=1 按键按下  flag=-1按键释放
****************************************/
void KeyToModem(int flag)
{
	//char buf[400];
//	RunMake(THIS_FILE_ID);
	if(g_ulKeyValue==KEY_PPT){
		if(flag==1){ 
			MODEM_DTR_LOW;
		}else{
		 	MODEM_DTR_HIGH;
		}
	}
    //buf[0]=1;
	//if(buf[0])return;
//	if(g_ulKeyValue==KEY_UP){
//		if(flag==1){
//			MODEM_DSR_LOW;
//			SlwTrace(INF,"[UP+]\r\n");	
//		}else{
//		 	MODEM_DSR_HIGH;
//			SlwTrace(INF,"[UP-]\r\n");
//		}
//	}
//	 
//	if(g_ulKeyValue==KEY_DOWN){
//		if(flag==1){
//			MODEM_RING_LOW;
//			SlwTrace(DEBUG,"[DOWN+]\r\n");	
//		}else{
//		 	MODEM_RING_HIGH;
//			SlwTrace(DEBUG,"[DOWN-]\r\n");
//		}
//	}
	
}
/************************************************************
*GetKey
读键盘数据
建议10ms调用一次此函数，不同调用时间需要修改函数内的相关参数以达到比较好的效果
参数：
	g_ucKeyMode=1时,单次模式
	g_ucKeyMode=0时,持续模式

返回值：
   0--按键无变化
   1 --按键有按下：
   		单次模式下，当按键第一次按下才返回一次该值；
		持续模式下，按着按键不放将间隔返回该值
		g_ulKeyValue保存当前按键值
   -1 --按键有释放.不管单次模式还是持续模式，当按键释放时只返回一次
		释放后，g_ulKeyValue保存上次按下的按键值

*************************************************************/
int GetKey(void)
{
	static unsigned char sucCt=0;//连续模式下响应频率控制;
	static unsigned char sucFlag=0;
	static unsigned char sucPress=0;
	static unsigned char sucLastPress=0;
	static unsigned long Key=0;
	static unsigned long Key1=0;
	static unsigned long Key2=0;

   	//GetEncodeKey();
	//去抖动  0 1
	if(++sucFlag>2){ //1
		sucFlag=0;	
	}
	if(sucFlag==0){
		Key1=KeyScanPort();
	}else{
		Key2=KeyScanPort();
	}

	if(Key1!=Key2)return 0;

	//按键状态发生变更	   
	if(Key!=Key1){
		Key=Key1;
		if(Key!=((KEY_ALL_PORTB<<16)| KEY_ALL_PORTC))
		{
			sucPress=1; //有按下
			g_ucUKC=0;
			//printf("KEY=%lx\r\n",Key);
		}
		else
		{
			sucPress=0; //无按下
			g_ucDKC=0;
		}
	}

	if(sucPress){//有按键按下
		if(g_ucKeyMode){ //单次模式
			if(sucLastPress!=sucPress){
				sucLastPress=sucPress;
				g_ulKeyValue=Key;  
				return 1;	
			}else{
				return 0;
			}	
		}else{	//持续模式
			sucLastPress=sucPress;
	    	if(0==sucCt){
				g_ulKeyValue=Key1;
				sucCt=100;//10ms*100=1000ms
				return 1;	
			}else{
				sucCt--;
				return 0;
			}
		}	
	}else{ //无按键按下
		sucCt=0;
		if(sucLastPress){
			sucLastPress=0;
			return -1;
		}	
	}
	return 0;
}

void KeyCount(void)
{
	if(g_ucDKC<255)g_ucDKC++;
	if(g_ucUKC<255)g_ucUKC++;
}
void OnOff_Init(void)  
{ 
	EXTI_InitTypeDef EXTI_InitStructure;
	GPIO_InitTypeDef GPIO_InitStructure;
	RCC_APB2PeriphClockCmd( RCC_APB2Periph_AFIO , ENABLE); 
	
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_InitStructure.GPIO_Pin = ONOFF_CK_PIN;
	GPIO_Init(ONOFF_CK_PORT, &GPIO_InitStructure);

	GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource9); 
	EXTI_InitStructure.EXTI_Line = EXTI_Line9;
	EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; 
	EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising; 
	EXTI_InitStructure.EXTI_LineCmd = ENABLE; 
	EXTI_Init(&EXTI_InitStructure);
}  
void EXTI9_5_IRQHandler(void)
{	 
	if(SET==EXTI_GetFlagStatus(EXTI_Line9))
	{//外部电源关了
		if(modemInitReady==1)
		{
			PWR_EN_HIGH;//模块已初始化成功的，需要软件关机，先锁好电源
			modemPwrOffNow=1;
		}
		EXTI_ClearFlag(EXTI_Line9);
	}
}
/********************************************************************************
 * Function:EncodeKeyScanPort
 
 *******************************************************************************/
unsigned char EncodeKeyScanPort(void)
{
	unsigned char v;
	unsigned long k1,k2;

	k2=GPIOB->IDR;
	k2&=KEY_PANEL_UP_PIN;

	k1=GPIOA->IDR;
	k1&=KEY_PANEL_DOWN_PIN;
  	
	k1=k1|k2;
	v=(unsigned char)k1&0xff;
	return v;
}
/********************************************************************************
GetEncodeKey
返回0  --不变
1  --加1
-1 --减1
 当
*******************************************************************************/
int GetEncodeKey(void)
{
	static unsigned char sucV[3]={0,0,0};
	static unsigned char si=0;
	static unsigned char lastEncode;
	unsigned char Encode;
	unsigned char flag;
	sucV[si]=EncodeKeyScanPort();
	Encode=sucV[0];
	if(0!=(Encode&KEY_PANEL_DOWN_PIN) && 0==(lastEncode&KEY_PANEL_DOWN_PIN)){	//上升沿
		if(Encode & KEY_PANEL_UP_PIN){
			g_iEncode=1;
		}else{
			g_iEncode=-1;
		}
	}else if(0==(Encode&KEY_PANEL_DOWN_PIN) && 0!=(lastEncode&KEY_PANEL_DOWN_PIN)){//下降沿
		if(Encode & KEY_PANEL_UP_PIN){
			g_iEncode=-1;
		}else{
			g_iEncode=1;
		}
	}

	lastEncode=	Encode;
	return flag;
}
/********************************************************************************
 *                            End of Module
 *******************************************************************************/