调usb眼图的efi tool_txiset和petiset-优快云博客

本文链接：https://blog.youkuaiyun.com/weixin_44154971/article/details/118420253

该代码示例展示了一个UEFI应用程序，用于读取命令行参数并修改特定寄存器设置以配置USB眼图调校参数。程序首先获取命令行参数，然后将参数转换为十六进制数，并根据这些参数更新寄存器值。通过调试输出，程序状态和写入后的寄存器值得以显示。

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代码写的很糙，仅供参考
c文件

#include "Uefi.h"
#include "Library/UefiBootServicesTableLib.h"
#include "Library/UefiRuntimeServicesTableLib.h"
#include "Library/DebugLib.h"
#include "Library/MemoryAllocationLib.h"
#include "Guid/ComExpressConfigVariable.h"
#include "WellsburgPkg/Include/Library/PchPlatformLib.h"  
#include "Library/UefiLib.h" 
#include <Protocol/ShellParameters.h>
#include <Protocol/Shell.h>

CHAR16 **Argv;
#define RCBA 0xFED1C000

EFI_STATUS
GetArg (
  VOID
  )
{
  EFI_STATUS                    Status;
  EFI_SHELL_PARAMETERS_PROTOCOL *ShellParameters;

  Status = gBS->HandleProtocol (
                  gImageHandle,
                  &gEfiShellParametersProtocolGuid,
                  (VOID**)&ShellParameters
                  );
  if (EFI_ERROR(Status)) {
    return Status;
  }

  Argv = ShellParameters->Argv;
  return EFI_SUCCESS;
}

EFI_STATUS
EFIAPI
Siconfig(IN EFI_HANDLE  ImageHandle,IN EFI_SYSTEM_TABLE  *SystemTable)
{
    EFI_STATUS                          Status;
    UINT8                               TxPeHalf, PeTxiset, Txiset;
    UINT32                              Data32Or, Data32And,Data32;
    UINT32                              TempBuf1,TempBuf2;
    
    Print(L"hello world\n");
    Status = GetArg();
    TempBuf1 = (UINT32)StrHexToUintn(Argv[1]);
    TempBuf2 = (UINT32)StrHexToUintn(Argv[2]);
    Print(L" Status :%r\n",Status);
    Print(L"%x %x\n",TempBuf1,TempBuf2);
    TxPeHalf = (UINT8)(TempBuf1 >> 16);
    PeTxiset = (UINT8)(TempBuf1 >> 8);
    Txiset = (UINT8)TempBuf1;
    //
    Data32And = (UINT32)~(0x00007F00);
    Data32Or  = (UINT32) (0x00000000);
    ASSERT (TxPeHalf < 2);
    Data32Or |= (TxPeHalf & 0x01) << 14;    // BIT[14]   (PERPORTTXPEHALF) = Usb20EyeDiagramTuningParam3
    ASSERT (PeTxiset < 8);
    Data32Or |= (PeTxiset & 0x07) << 11; // BIT[13:11] (PERPORTPETXISET) = Usb20EyeDiagramTuningParam2
    ASSERT (Txiset < 8);
    Data32Or |= (Txiset & 0x07) << 8;  // BIT[10:08] (PERPORTTXISET)   = Usb20EyeDiagramTuningParam1
    //
    Status = ProgramIobp (
    RCBA,
    0xE5004000 + (TempBuf2 * 0x100),
    Data32And,
    Data32Or
    );
    Print(L" write usb si :%r\n",Status);
    Status = ReadIobp(RCBA,0xE5004000+(TempBuf2 * 0x100),&Data32);
    Print(L" read usb si : %x %r\n",Data32,Status);
    return Status;
}

inf文件

[Defines]
  INF_VERSION               = 0x00010015
  VERSION_STRING            = 1.0
  BASE_NAME                 = Siconfig
  MODULE_TYPE               = UEFI_APPLICATION
  FILE_GUID                 = 42081926-cb7d-4365-b67f-3150c801d58c
  ENTRY_POINT               = Siconfig
  
[Sources]
  Siconfig.c
    
[Packages]
  MdePkg/MdePkg.dec
  MdeModulePkg/MdeModulePkg.dec
  ServerCommonPkg/ServerCommonPkg.dec
  AmiCompatibilityPkg/AmiCompatibilityPkg.dec
  AmiTsePkg/AmiTsePkg.dec
  GrantleySocketPkg/SocketPkg.dec
  WellsburgPkg/WellsburgPkg.dec

[Protocols]
gEfiShellParametersProtocolGuid

[LibraryClasses]
  UefiApplicationEntryPoint
  UefiBootServicesTableLib
  UefiRuntimeServicesTableLib
  DebugLib
  MemoryAllocationLib
  PchPlatformLib
  UefiLib
  BaseLib
  PchPlatformLib
  MemoryAllocationLib
  
[Depex]
  gEfiShellParametersProtocolGuid

USB2.0 register