72 lines
1.8 KiB
C
72 lines
1.8 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\n");
|
|
}
|
|
|
|
/* 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\n");
|
|
}
|
|
|
|
/* Discover and enumerate EFI block devices */
|
|
BlEnumerateEfiBlockDevices();
|
|
|
|
/* Infinite bootloader loop */
|
|
for(;;);
|
|
|
|
/* Return success */
|
|
return STATUS_EFI_SUCCESS;
|
|
}
|