mirror of
https://github.com/acidanthera/OpenCorePkg.git
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121 lines
3.5 KiB
C
121 lines
3.5 KiB
C
/** @file
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RTC memory read/write.
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Copyright (c) 2020, vit9696. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <Uefi.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/OcDebugLogLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/OcConsoleLib.h>
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#include <Library/OcMiscLib.h>
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#include <Library/OcRtcLib.h>
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#include <Library/OcStringLib.h>
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#include <Library/UefiApplicationEntryPoint.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiLib.h>
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EFI_STATUS
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EFIAPI
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UefiMain (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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UINTN Argc;
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CHAR16 **Argv;
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UINTN Addr;
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UINTN Value;
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UINTN Index;
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UINT8 Rtc[256];
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gBS->SetWatchdogTimer (0, 0, 0, NULL);
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OcProvideConsoleGop (FALSE);
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OcConsoleControlSetMode (EfiConsoleControlScreenText);
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OcSetConsoleResolution (0, 0, 0, FALSE);
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Status = GetArguments (&Argc, &Argv);
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if (!EFI_ERROR (Status) && Argc >= 2) {
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if (OcStriCmp (Argv[1], L"dump") == 0 && Argc == 2) {
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for (Index = 0; Index < ARRAY_SIZE (Rtc); ++Index) {
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Rtc[Index] = OcRtcRead ((UINT8) Index);
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}
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for (Index = 0; Index < ARRAY_SIZE (Rtc); Index += 16) {
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Print(
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L"%02Xh: %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X\n",
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Index,
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Rtc[Index+0],
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Rtc[Index+1],
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Rtc[Index+2],
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Rtc[Index+3],
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Rtc[Index+4],
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Rtc[Index+5],
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Rtc[Index+6],
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Rtc[Index+7],
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Rtc[Index+8],
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Rtc[Index+9],
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Rtc[Index+10],
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Rtc[Index+11],
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Rtc[Index+12],
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Rtc[Index+13],
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Rtc[Index+14],
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Rtc[Index+15]
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);
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}
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return EFI_SUCCESS;
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}
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if (OcStriCmp (Argv[1], L"read") == 0 && Argc == 3) {
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Status = StrHexToUintnS (Argv[2], NULL, &Addr);
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if (EFI_ERROR (Status) || Addr > 0xFF) {
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Print (L"Invalid addr %LX - %r\n", (UINT64) Addr, Status);
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return EFI_SUCCESS;
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}
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Print (L"Rtc[0x%Xh] = 0x%02X\n", (UINT32) Addr, OcRtcRead ((UINT8) Addr));
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return EFI_SUCCESS;
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}
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if (OcStriCmp (Argv[1], L"write") == 0 && Argc == 4) {
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Status = StrHexToUintnS (Argv[2], NULL, &Addr);
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if (EFI_ERROR (Status) || Addr > 0xFF) {
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Print (L"Invalid addr %LX - %r\n", (UINT64) Addr, Status);
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return EFI_SUCCESS;
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}
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Status = StrHexToUintnS (Argv[3], NULL, &Value);
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if (EFI_ERROR (Status) || Value > 0xFF) {
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Print (L"Invalid value %LX - %r\n", (UINT64) Value, Status);
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return EFI_SUCCESS;
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}
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Print (
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L"Rtc[0x%X] = 0x%02X -> 0x%02X\n",
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(UINT32) Addr,
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OcRtcRead ((UINT8) Addr),
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(UINT8) Value
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);
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OcRtcWrite ((UINT8) Addr, (UINT8) Value);
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return EFI_SUCCESS;
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}
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}
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Print (L"Usage: RtcRw <dump|read|write> <addr> <value>\n");
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return EFI_SUCCESS;
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}
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