?? main.c
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//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//
// Use of this source code is subject to the terms of the Microsoft end-user
// license agreement (EULA) under which you licensed this SOFTWARE PRODUCT.
// If you did not accept the terms of the EULA, you are not authorized to use
// this source code. For a copy of the EULA, please see the LICENSE.RTF on your
// install media.
//
//
//
// Use of this source code is subject to the terms of the Microsoft end-user
// license agreement (EULA) under which you licensed this SOFTWARE PRODUCT.
// If you did not accept the terms of the EULA, you are not authorized to use
// this source code. For a copy of the EULA, please see the LICENSE.RTF on your
// install media.
//
#include <windows.h>
#include <bsp.h>
#include <pcireg.h>
#include <ethdbg.h>
#include <fmd.h>
#include "loader.h"
char *inet_ntoa(DWORD dwIP);
DWORD inet_addr( char *pszDottedD );
BOOL EbootInitEtherTransport (EDBG_ADDR *pEdbgAddr, LPDWORD pdwSubnetMask,
BOOL *pfJumpImg,
DWORD *pdwDHCPLeaseTime,
UCHAR VersionMajor, UCHAR VersionMinor,
char *szPlatformString, char *szDeviceName,
UCHAR CPUId, DWORD dwBootFlags);
BOOL EbootEtherReadData (DWORD cbData, LPBYTE pbData);
EDBG_OS_CONFIG_DATA *EbootWaitForHostConnect (EDBG_ADDR *pDevAddr, EDBG_ADDR *pHostAddr);
// End ***************************************
// Globals
//
DWORD EdbgDebugZone;
static BOOLEAN g_bWaitForConnect = TRUE;
IMAGE_TYPE g_ImageType = IMAGE_OS_BIN;
BOOT_CFG g_BootConfig;
EDBG_ADDR g_DeviceAddr; // NOTE: global used so it remains in scope throughout download process
// since eboot library code keeps a global pointer to the variable provided.
// External definitions.
//
extern const BYTE ScreenBitmap[];
extern BOOL g_bSmartMediaExist;
/*
@func void | SpinForever | Halts execution (used in error conditions).
@rdesc
@comm
@xref
*/
static void SpinForever(void)
{
EdbgOutputDebugString("SpinForever...\r\n");
while(1)
{
;
}
}
/*
@func void | main | Samsung bootloader C routine entry point.
@rdesc N/A.
@comm
@xref
*/
void main(void)
{
// Clear LEDs.
//
OEMWriteDebugLED(0, 0xF);
// Common boot loader (blcommon) main routine.
//
BootloaderMain();
// Should never get here.
//
SpinForever();
}
/*
@func void | InitDisplay | Initializes the LCD controller and displays a splashscreen image.
@rdesc N/A.
@comm
@xref
*/
static void InitDisplay(void)
{
volatile S3C2410X_IOPORT_REG *s2410IOP = (S3C2410X_IOPORT_REG *)OALPAtoVA(S3C2410X_BASE_REG_PA_IOPORT, FALSE);
volatile S3C2410X_LCD_REG *s2410LCD = (S3C2410X_LCD_REG *)OALPAtoVA(S3C2410X_BASE_REG_PA_LCD, FALSE);
// Set up the LCD controller registers to display a power-on bitmap image.
//
s2410IOP->GPCUP = 0xFFFFFFFF;
s2410IOP->GPCCON = 0xAAAAAAAA;
s2410IOP->GPDUP = 0xFFFFFFFF;
s2410IOP->GPDCON = 0xAAAAAAAA;
s2410LCD->LCDCON1 = (6 << 8) | /* VCLK = HCLK / ((CLKVAL + 1) * 2) -> About 7 Mhz */
(LCD_MVAL << 7) | /* 0 : Each Frame */
(3 << 5) | /* TFT LCD Pannel */
(12 << 1) | /* 16bpp Mode */
(0 << 0) ; /* Disable LCD Output */
s2410LCD->LCDCON2 = (LCD_VBPD << 24) | /* VBPD : 1 */
(LCD_LINEVAL_TFT << 14) | /* Vertical Size : 320 - 1 */
(LCD_VFPD << 6) | /* VFPD : 2 */
(LCD_VSPW << 0) ; /* VSPW : 1 */
s2410LCD->LCDCON3 = (LCD_HBPD << 19) | /* HBPD : 6 */
(LCD_HOZVAL_TFT << 8) | /* HOZVAL_TFT : 240 - 1 */
(LCD_HFPD << 0) ; /* HFPD : 2 */
s2410LCD->LCDCON4 = (LCD_MVAL << 8) | /* MVAL : 13 */
(LCD_HSPW << 0) ; /* HSPW : 4 */
s2410LCD->LCDCON5 = (0 << 12) | /* BPP24BL : LSB valid */
(1 << 11) | /* FRM565 MODE : 5:6:5 Format */
(0 << 10) | /* INVVCLK : VCLK Falling Edge */
(1 << 9) | /* INVVLINE : Inverted Polarity */
(1 << 8) | /* INVVFRAME : Inverted Polarity */
(0 << 7) | /* INVVD : Normal */
(0 << 6) | /* INVVDEN : Normal */
(0 << 5) | /* INVPWREN : Normal */
(0 << 4) | /* INVENDLINE : Normal */
(0 << 3) | /* PWREN : Disable PWREN */
(0 << 2) | /* ENLEND : Disable LEND signal */
(0 << 1) | /* BSWP : Swap Disable */
(1 << 0) ; /* HWSWP : Swap Enable */
s2410LCD->LCDSADDR1 = ((IMAGE_FRAMEBUFFER_DMA_BASE >> 22) << 21) |
((M5D(IMAGE_FRAMEBUFFER_DMA_BASE >> 1)) << 0);
s2410LCD->LCDSADDR2 = M5D((IMAGE_FRAMEBUFFER_DMA_BASE + (LCD_XSIZE_TFT * LCD_YSIZE_TFT * 2)) >> 1);
s2410LCD->LCDSADDR3 = (((LCD_XSIZE_TFT - LCD_XSIZE_TFT) / 1) << 11) | (LCD_XSIZE_TFT / 1);
s2410LCD->LPCSEL |= 0x3;
s2410LCD->TPAL = 0x0;
s2410LCD->LCDCON1 |= 1;
// Display a bitmap image on the LCD...
//
memcpy((void *)IMAGE_FRAMEBUFFER_UA_BASE, ScreenBitmap, LCD_ARRAY_SIZE_TFT_16BIT);
}
static void InitRealTimeClock(void)
{
SYSTEMTIME defaultTime = {1998,1,0,1,12,0,0,0};
OEMSetRealTime(&defaultTime);
}
/*
@func BOOL | WriteBootConfig | Write bootloader settings to flash.
@rdesc TRUE = Success, FALSE = Failure.
@comm
@xref
*/
static BOOL WriteBootConfig(PBOOT_CFG pBootCfg)
{
BOOL bResult = FALSE;
OALMSG(OAL_FUNC, (TEXT("+WriteBootConfig.\r\n")));
if (!pBootCfg)
{
goto CleanUp;
}
// First, erase the eboot settings area in flash...
//
if (!AM29LV800_EraseFlash(EBOOT_CONFIG_OFFSET, sizeof(BOOT_CFG)))
{
OALMSG(OAL_ERROR, (TEXT("ERROR: WriteEbootConfig: Flash erase failed.\r\n")));
goto CleanUp;
}
// Write settings to flash...
//
if (!AM29LV800_WriteFlash(EBOOT_CONFIG_OFFSET, (PBYTE)pBootCfg, sizeof(BOOT_CFG)))
{
OALMSG(OAL_ERROR, (TEXT("ERROR: WriteEbootConfig: Flash write failed.\r\n")));
goto CleanUp;
}
bResult = TRUE;
CleanUp:
OALMSG(OAL_FUNC, (TEXT("-WriteBootConfig.\r\n")));
return(bResult);
}
/*
@func void | ResetBootConfig | Reset the bootloader settings to their default values.
@rdesc N/A.
@comm
@xref
*/
static void ResetBootConfig(PBOOT_CFG pBootCfg)
{
// Default eboot configuration values (leave the MAC address field alone)...
//
pBootCfg->Signature = CONFIG_SIGNATURE;
pBootCfg->VerMajor = EBOOT_VERSION_MAJOR;
pBootCfg->VerMinor = EBOOT_VERSION_MINOR;
pBootCfg->BootDelay = CONFIG_AUTOBOOT_DEFAULT_COUNT;
pBootCfg->ConfigFlags = CONFIG_FLAGS_DHCP;
pBootCfg->IPAddr = 0;
pBootCfg->SubnetMask = 0;
pBootCfg->LoadDeviceOrder = 0;
return;
}
/*
@func BOOL | ReadBootConfig | Read bootloader settings from flash.
@rdesc TRUE = Success, FALSE = Failure.
@comm
@xref
*/
static BOOL ReadBootConfig(PBOOT_CFG pBootCfg)
{
BOOLEAN bResult = FALSE;
OALMSG(OAL_FUNC, (TEXT("+ReadBootConfig.\r\n")));
// Valid caller buffer?
if (!pBootCfg)
{
OALMSG(OAL_ERROR, (TEXT("ERROR: Bad caller buffer.\r\n")));
goto CleanUp;
}
// Read settings from flash...
//
if (!AM29LV800_ReadFlash(EBOOT_CONFIG_OFFSET, (PBYTE)pBootCfg, sizeof(BOOT_CFG)))
{
OALMSG(OAL_ERROR, (TEXT("ERROR: Flash read failed.\r\n")));
goto CleanUp;
}
// Check configuration signature...
//
if (pBootCfg->Signature != CONFIG_SIGNATURE)
{
OALMSG(OAL_WARN, (TEXT("WARNING: Boot configuration signature invalid - choosing defaults...\r\n")));
ResetBootConfig(pBootCfg);
WriteBootConfig(pBootCfg);
}
bResult = TRUE;
CleanUp:
OALMSG(OAL_FUNC, (TEXT("-ReadBootConfig.\r\n")));
return(TRUE);
}
/*
@func void | SetIP | Accepts IP address from user input.
@rdesc N/A.
@comm
@xref
*/
static void SetIP(PBOOT_CFG pBootCfg)
{
CHAR szDottedD[16]; // The string used to collect the dotted decimal IP address.
USHORT cwNumChars = 0;
USHORT InChar = 0;
EdbgOutputDebugString("\r\nEnter new IP address: ");
while(!((InChar == 0x0d) || (InChar == 0x0a)))
{
InChar = OEMReadDebugByte();
if (InChar != OEM_DEBUG_COM_ERROR && InChar != OEM_DEBUG_READ_NODATA)
{
// If it's a number or a period, add it to the string.
//
if (InChar == '.' || (InChar >= '0' && InChar <= '9'))
{
if (cwNumChars < 16)
{
szDottedD[cwNumChars++] = (char)InChar;
OEMWriteDebugByte((BYTE)InChar);
}
}
// If it's a backspace, back up.
//
else if (InChar == 8)
{
if (cwNumChars > 0)
{
cwNumChars--;
OEMWriteDebugByte((BYTE)InChar);
}
}
}
}
// If it's a carriage return with an empty string, don't change anything.
//
if (cwNumChars)
{
szDottedD[cwNumChars] = '\0';
pBootCfg->IPAddr = inet_addr(szDottedD);
}
}
/*
@func void | SetMask | Accepts subnet mask from user input.
@rdesc N/A.
@comm
@xref
*/
static void SetMask(PBOOT_CFG pBootCfg)
{
CHAR szDottedD[16]; // The string used to collect the dotted masks.
USHORT cwNumChars = 0;
USHORT InChar = 0;
EdbgOutputDebugString("\r\nEnter new subnet mask: ");
while(!((InChar == 0x0d) || (InChar == 0x0a)))
{
InChar = OEMReadDebugByte();
if (InChar != OEM_DEBUG_COM_ERROR && InChar != OEM_DEBUG_READ_NODATA)
{
// If it's a number or a period, add it to the string.
//
if (InChar == '.' || (InChar >= '0' && InChar <= '9'))
{
if (cwNumChars < 16)
{
szDottedD[cwNumChars++] = (char)InChar;
OEMWriteDebugByte((BYTE)InChar);
}
}
// If it's a backspace, back up.
//
else if (InChar == 8)
{
if (cwNumChars > 0)
{
cwNumChars--;
OEMWriteDebugByte((BYTE)InChar);
}
}
}
}
// If it's a carriage return with an empty string, don't change anything.
//
if (cwNumChars)
{
szDottedD[cwNumChars] = '\0';
pBootCfg->SubnetMask = inet_addr(szDottedD);
}
}
/*
@func void | SetDelay | Accepts an autoboot delay value from user input.
@rdesc N/A.
@comm
@xref
*/
static void SetDelay(PBOOT_CFG pBootCfg)
{
CHAR szCount[16];
USHORT cwNumChars = 0;
USHORT InChar = 0;
EdbgOutputDebugString("\r\nEnter maximum number of seconds to delay [1-255]: ");
while(!((InChar == 0x0d) || (InChar == 0x0a)))
{
InChar = OEMReadDebugByte();
if (InChar != OEM_DEBUG_COM_ERROR && InChar != OEM_DEBUG_READ_NODATA)
{
// If it's a number or a period, add it to the string.
//
if ((InChar >= '0' && InChar <= '9'))
{
if (cwNumChars < 16)
{
szCount[cwNumChars++] = (char)InChar;
OEMWriteDebugByte((BYTE)InChar);
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