/******************************************************************/
/*   Copyright (C) 2007 ROCK-CHIPS FUZHOU . All Rights Reserved.  */
/*******************************************************************
File	:  hw_vx979key.c
Desc	:  VX979按鍵消息\接口函數的實現
		  
Author	: huangxinyu
Date	: 2007-07-09
Notes	: 

$Log: hw_Fr0605Akey.c,v $
Revision 1.1.1.1  2008/03/06 13:29:06  Lingzhaojun
no message

Revision 1.1  2007/11/26 14:31:30  Huangxinyu
增加vx979key目錄

Revision 1.4  2007/10/15 09:16:37  Huangxinyu
根據RK27提交修改driver

Revision 1.3  2007/10/08 02:38:45  Lingzhaojun
添加版本自動注釋腳本

*********************************************************************/

#include "include.h"
#include "hw_include.h"
#include "hw_gpio.h"
#include "hw_Fr0605Akey.h"
#include "keyglobal.h"
#include "hwapi_adc.h"
#include "hw_timer.h"

#if (KEY_TYPE == Fr0605AKEY)

static  UINT16  gKeyPortState;	    /*	用于記錄 按鍵 PIO 的狀態,相應位為高表示按下,相應位為低表示沒有按下或彈起 */
static  UINT8   gKeyPioState;               /*  用于記錄GPIO口用作keyboard之前的狀態,在反初始化時可恢復 */

#ifdef ADC_KEY_EN	
extern INT16U			gKeyScanCode;
extern INT16U			gKeyDownMsgSend;
extern unsigned short   AdcValue[4];
//extern unsigned char 	AdcCurrChn;
#endif
extern UINT16 gSysState;

void  FieldRockKeySendMsg(UINT16 press , UINT16 KeyNo);

KEYEXT  UINT16   gKeyIOMasks[] = 
	{PIO_MENU_MASK, PIO_FFW_MASK, PIO_FFD_MASK, PIO_UP_MASK,  PIO_PLAY_MASK };
/**************************************************************************
* 函數描述: 導航鍵初始化
* 入口參數: 無
* 出口參數: 無
* 返回值:   無
***************************************************************************/
void RockKey_PowerOnInit(void)
{
    gKeyPioState = GPIO_GetPortDirection(PIO_KEY);
    //GPIO_PullUpDown(GPIOPortA_Pin7, GPIOPort_NoPull);
    //GPIO_SetPinDirection(GPIOPortA_Pin7, GPIO_IN);
    GPIO_SetPinDirection(GPIOPortC_Pin1, GPIO_IN);
    GPIO_SetPinDirection(GPIOPortC_Pin2, GPIO_IN);
    GPIO_SetPinDirection(GPIOPortC_Pin3, GPIO_IN);
    GPIO_SetPinDirection(GPIOPortC_Pin4, GPIO_IN);
    GPIO_SetPinDirection(GPIOPortC_Pin6, GPIO_IN);
    GPIO_SetPinLevel(GPIOPortC_Pin1,GPIO_LOW);
    GPIO_SetPinLevel(GPIOPortC_Pin2,GPIO_LOW);
    GPIO_SetPinLevel(GPIOPortC_Pin3,GPIO_LOW);
    GPIO_SetPinLevel(GPIOPortC_Pin4,GPIO_LOW);
    GPIO_SetPinLevel(GPIOPortC_Pin6,GPIO_LOW);
    
    #ifdef		ADC_KEY_EN
    //StartHWTimer(1/*timer1*/, 1/*mstick*/, ADC_KEY_TimerISR);
	#endif

}
UINT16  TestadcValue;
/**************************************************************************
* 函數描述: 導航鍵硬件檢測
* 入口參數: 無
* 出口參數: 無
* 返回值:   無
***************************************************************************/
void RockKeyScanning( void )
{
	UINT8	pioData;
	UINT16	keys;
    UINT16 tempADCValue;

    //GPIO_SetPortDirection(PIO_KEY, 0x0); // set key port to input

	pioData = GPIO_GetPortLevel(PIO_KEY);  
	for( keys = 0; keys < (UINT8)MAX_PIO_KEYS; keys++ )  
	 {
		if( (pioData & gKeyIOMasks[keys])==0 )          //為低，按鍵沒有按下 
		{
		   if(gKeyPortState & (0x0001<<keys))	        /* 原來是按下 狀態 */
			  {
				gKeyPortState &= ~(0x0001<<keys);
			//	RockStopTimer( TID_KEY_BASE-KEY_SCAN_MIN+keys );
				FieldRockKeySendMsg( 0 , KEY_SCAN_MIN+keys );
			  }
		}
		else	/*	按鍵按下 */
		{
		    if((gKeyPortState & (0x0001<<keys))==0 )	    /*	原來是 彈起 狀態 */
			  {
				gKeyPortState |= 0x0001<<keys;
				FieldRockKeySendMsg( 1 , KEY_SCAN_MIN+keys );
			  }
		}
	 }
#if 0
  //  GPIO_SetPinDirection(GPIOPortA_Pin7, GPIO_IN);
	pioData = GPIO_GetPinLevel(GPIOPortA_Pin7); 
     if( pioData == 1)    // 
        {
          if((gKeyPortState & (0x0001<<MAX_PIO_KEYS))==0 )  // 原來是彈起狀態
            {
				gKeyPortState |= 0x0001<<MAX_PIO_KEYS;
               FieldRockKeySendMsg(1, MAX_PIO_KEYS);
            }
        }
     else
        {
          if(gKeyPortState & (0x0001<<MAX_PIO_KEYS))  // 原來是按下狀態
            {
               gKeyPortState &= ~(0x0001<<MAX_PIO_KEYS);
               FieldRockKeySendMsg(0, MAX_PIO_KEYS);
            }
        }
#endif

#if 1   
	//ADC_Start(KEYBOARD_ADC, NULL);   // KEYBOARD_ADC
	//DelayMs_nops(5);
	//ADC_ReadData(&tempADCValue);
	//if( tempADCValue < 300 ) 
	
		tempADCValue = AdcValue[KEYBOARD_ADC];
		TestadcValue = tempADCValue;
	if( AdcValue[KEYBOARD_ADC] > 300 ) 
	{
          if((gKeyPortState & (0x0001<<(MAX_PIO_KEYS+1)))==0 )  // 原來是彈起狀態
            {
				gKeyPortState |= 0x0001<<(MAX_PIO_KEYS+1);
               FieldRockKeySendMsg(1, (MAX_PIO_KEYS+1));
            }
	}
     else
        {
          if(gKeyPortState & (0x0001<<(MAX_PIO_KEYS+1)))  // 原來是按下狀態
            {
               gKeyPortState &= ~(0x0001<<(MAX_PIO_KEYS+1));
               FieldRockKeySendMsg(0, (MAX_PIO_KEYS+1));
            }
        }

#endif

}

/**************************************************************************
* 函數描述: 發送按鍵消息
*           
* 入口參數: UINT16 press , UINT16 KeyNo
* 出口參數: 無
* 返回值:   無
***************************************************************************/
void  FieldRockKeySendMsg(UINT16 press , UINT16 KeyNo)
{
	if(gSysState&SYS_LCD_OFF)	//黑屏先喚醒
	{
		if(KeyNo == 7)			//HOLD鍵另外處理
		{
			RockKeySendKeyMsg(press, KeyNo);
			return;
		}
		if(press == 1)
			return;
		else
			RockKeySendKeyMsg(press, 8);	//發送無效消息
		return;
	}
	else
	{
        RockKeySendKeyMsg(press, KeyNo);
		return;
	}
}

static unsigned char AdcCurrChn = 0;
/**************************************************************************
* 函數描述: 讀取通道AB的值和AD鍵數值
*           
* 入口參數: 無
* 出口參數: 無
* 返回值:   無
***************************************************************************/
void  ADC_KEYSCAN_READ(void)
{
    unsigned short adctemp;
 
//********************AD鍵讀入判斷*******************************   

    if(ADC_ReadData(&adctemp))
        AdcValue[AdcCurrChn] = adctemp;
    AdcCurrChn++;
    if(AdcCurrChn>=Adc_channel_max)
        AdcCurrChn = Adc_channel0;
    ADC_Start(AdcCurrChn,NULL);	
}	

/**************************************************************************
* 函數描述: 導航鍵反初始化
* 入口參數: 無
* 出口參數: 無
* 返回值:   無
***************************************************************************/
void RockKey_PowerOffDeinit(void)
{
    GPIO_SetPortDirection(PIO_KEY,gKeyPioState); // restore key port 
}

#endif