6410 Eboot 添加键盘控制

升级的时候，需要搞个提示，加个键盘控制神马的。

所以，咱得把这个键盘加到Eboot里面。

由于Eboot里面使用不了这个中断，所以只能使用扫描按键的方式。

按键接的是：

行：GPK8~GPK13

列：GPL0~GPL4（这里只需要使用到一列就够了，就使用GPL0吧，这样就有6个按键了）

参照键盘驱动KeyPad，这里把其简化，分成初始化和循环扫描处理，按键识别三部分。

使用的时候，咱先初始化一下键盘：

调用

ret = InitKey();

初始化成功后，在循环里面调用

KScan_Proc();

去检测按键按下，接着再通过

keyValue = GetKeyDown();

去获取按下的按键，然后做识别处理。

6个按键，根据行列扫描后的键值，定义如下：（Key.h）

#defineKEY_ENTER(0x1)#defineKEY_SCAN(0x2)#defineKEY_CANCEL(0x4)#defineKEY_DELETE(0x8)#defineKEY_BACKSPACE(0x10)#defineKEY_UP(0x20)

Key.c的实现如下：

// *** you add ***// for 6410 key.// use row0 & col0~col5#include "Key.h"#include <windows.h>#include "Winbase.h"#include <oal.h>#include <s3c6410.h>//#ifdef _KEY_H_//#define _KEY_H_// define#defineSIZE_COLS1#defineKEYIF_Row_Read(pKeyPadReg->KEYIFROW)// KEYIFCON#defineFC_EN_DIS            (0<<3)#defineFC_EN_EN             (1<<3)#defineDF_EN_DIS            (0<<2)#defineDF_EN_EN             (1<<2)#defineINT_R_ENABLE         (0<<1)#defineINT_R_DISABLE        (1<<1)#defineINT_F_ENABLE         (0<<0)#defineINT_F_DISABLE        (1<<0)// KEYIFFC#defineFC_DIV_VAL(n)        (((n)&0x3ff)<<0)#defineKEY_POWER_ON   (1<<11)                      // PCLKCON#ifndef FIN#define FIN        12000000#endif#defineFT_CLK_DIV     (FIN/32000 - 1)// KEYIFSTSCLR#defineCLEAR_P_INT            (0xFF<<0)#defineCLEAR_R_INT            (0xFF<<8)// global variablevolatile S3C6410_GPIO_REG *pGPIOReg2 = NULL;volatile S3C6410_KEYPAD_REG *pKeyPadReg = NULL;volatile S3C6410_SYSCON_REG *pSysConReg = NULL;DWORD KeyState[SIZE_COLS];// functionBOOL InitKey();void KScan_Proc();DWORD GetKeyDown();void ClearKey();BOOL InitKey(){    // GPIO Virtual alloc    pGPIOReg2 = (S3C6410_GPIO_REG *)OALPAtoVA(S3C6410_BASE_REG_PA_GPIO, FALSE);if(pGPIOReg2 == NULL)return FALSE;    // Keypad Virtual alloc    pKeyPadReg = (S3C6410_KEYPAD_REG *)OALPAtoVA(S3C6410_BASE_REG_PA_KEYPAD, FALSE);if(pKeyPadReg == NULL)return FALSE;    // Syscon Virtual alloc    pSysConReg = (S3C6410_SYSCON_REG *)OALPAtoVA(S3C6410_BASE_REG_PA_SYSCON, FALSE);if(pSysConReg == NULL)return FALSE;// enable the Keypad Clock (PCLK)pSysConReg->PCLK_GATE |= KEY_POWER_ON;pKeyPadReg->KEYIFCON = INT_F_DISABLE|INT_R_DISABLE|DF_EN_EN|FC_EN_DIS;//Keypad interfae debouncing filter clock division registerpKeyPadReg->KEYIFFC = FC_DIV_VAL(FT_CLK_DIV);pKeyPadReg->KEYIFCOL = (0x00<<8);// select all column - Set Keypad column GPIO to output(low)//pGPIOReg2->GPLCON0=(pGPIOReg2->GPLCON0 & ~(0xfffff<<0)) | (0x33333<<0);    //KBC_0(GPL0)~ KBC_4(GPL4)pGPIOReg2->GPLCON0=(pGPIOReg2->GPLCON0 & ~(0xf<<0)) | (0x3<<0);//KBC_0(GPL0)pKeyPadReg->KEYIFCOL = (0x0 & 0xff);// configure - Set Keypad row GPIO to [Key PAD ROW]pGPIOReg2->GPKCON1=(pGPIOReg2->GPKCON1 & ~(0xffffff<<0)) | (0x333333<<0);    //KBR_0(GPK8)~ KBR_5(GPK13)// unmask the key interruptpKeyPadReg->KEYIFSTSCLR = CLEAR_P_INT|CLEAR_R_INT;    // Clear Pressed/Released Interruptreturn TRUE;}void KScan_Proc(){int i=0;volatile int m=0;// Read the Matrix// KBC_0 ~ KBC_7for(i = 0 ; i < SIZE_COLS; i++){pKeyPadReg->KEYIFCOL = (0x0 & 0xff);// select a columnpKeyPadReg->KEYIFCOL = pKeyPadReg->KEYIFCOL | (0xff & ~(0x1 << i));for(m=0; m<2000; m++);KeyState[i] = (~KEYIF_Row_Read) & 0xff;for(m=0; m<2000; m++);}pKeyPadReg->KEYIFCOL = (0x0 & 0xff);}DWORD GetKeyDown(){DWORD key = 0x0;int i=0;for(i = 0 ; i < SIZE_COLS; i++){if(KeyState[i] & KEY_ENTER)key |= KEY_ENTER;if(KeyState[i] & KEY_SCAN)key |= KEY_SCAN;if(KeyState[i] & KEY_CANCEL)key |= KEY_CANCEL;if(KeyState[i] & KEY_DELETE)key |= KEY_DELETE;if(KeyState[i] & KEY_BACKSPACE)key |= KEY_BACKSPACE;if(KeyState[i] & KEY_UP)key |= KEY_UP;}return key;}void ClearKey(){memset(KeyState, 0, sizeof(KeyState)/sizeof(DWORD));}//#endif

特此记录一下。

仅供参考，请勿模仿~~

若存在错误，请大家指出