exectos/xtldr/xtldr.c
2022-08-13 13:25:29 +02:00

69 lines
1.7 KiB
C

/**
* PROJECT: ExectOS
* COPYRIGHT: See COPYING.md in the top level directory
* FILE: xtldr/xtldr.c
* DESCRIPTION: UEFI XT Bootloader
* DEVELOPERS: Rafal Kupiec <belliash@codingworkshop.eu.org>
*/
#include <xtbl.h>
/* EFI Image Handle */
EFI_HANDLE EfiImageHandle;
/* EFI System Table */
PEFI_SYSTEM_TABLE EfiSystemTable;
/* Serial port configuration */
CPPORT EfiSerialPort;
/**
* This routine is the entry point of the XT EFI boot loader.
*
* @param ImageHandle
* Firmware-allocated handle that identifies the image.
*
* @param SystemTable
* Provides the EFI system table.
*
* @return This routine returns status code.
*
* @since XT 1.0
*/
EFI_STATUS
BlStartXtLoader(IN EFI_HANDLE ImageHandle,
IN PEFI_SYSTEM_TABLE SystemTable)
{
EFI_STATUS Status;
/* Set the system table and image handle */
EfiImageHandle = ImageHandle;
EfiSystemTable = SystemTable;
/* Initialize EFI console */
BlConsoleInitialize();
/* Early initialize COM port for debugging */
Status = BlComPortInitialize();
if(Status != STATUS_EFI_SUCCESS)
{
/* Initialization failed, try printing error to stdout and serial console */
BlEfiPrint(L"ERROR: Failed to initialize serial console");
}
/* Disable watchdog timer */
Status = EfiSystemTable->BootServices->SetWatchdogTimer(0, 0x10000, 0, NULL);
if(Status != STATUS_EFI_SUCCESS)
{
/* Failed to disable the timer, print message */
BlDbgPrint(L"WARNING: Failed to disable watchdog timer");
}
/* Infinite bootloader loop */
for(;;);
/* Return success */
return STATUS_EFI_SUCCESS;
}