SpcrParser.c

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#include <IndustryStandard/Acpi.h>
#include <IndustryStandard/SerialPortConsoleRedirectionTable.h>
#include <Library/UefiLib.h>
#include "AcpiParser.h"
#include "AcpiTableParser.h"
 
// Local variables
STATIC ACPI_DESCRIPTION_HEADER_INFO  AcpiHdrInfo;
 
STATIC
VOID
EFIAPI
ValidateInterruptType (
  IN UINT8   *Ptr,
  IN UINT32  Length,
  IN VOID    *Context
  )
{
 #if defined (MDE_CPU_ARM) || defined (MDE_CPU_AARCH64)
  UINT8  InterruptType;
 
  InterruptType = *Ptr;
 
  if (InterruptType !=
      EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_INTERRUPT_TYPE_GIC)
  {
    IncrementErrorCount ();
    Print (
      L"\nERROR: InterruptType = %d. This must be 8 on ARM Platforms",
      InterruptType
      );
  }
 
 #endif
}
 
STATIC
VOID
EFIAPI
ValidateIrq (
  IN UINT8   *Ptr,
  IN UINT32  Length,
  IN VOID    *Context
  )
{
 #if defined (MDE_CPU_ARM) || defined (MDE_CPU_AARCH64)
  UINT8  Irq;
 
  Irq = *Ptr;
 
  if (Irq != 0) {
    IncrementErrorCount ();
    Print (
      L"\nERROR: Irq = %d. This must be zero on ARM Platforms\n",
      Irq
      );
  }
 
 #endif
}
 
STATIC CONST ACPI_PARSER  SpcrParser[] = {
  PARSE_ACPI_HEADER (&AcpiHdrInfo),
  { L"Interface Type",             1,   36, L"%d",       NULL,       NULL, NULL,                  NULL },
  { L"Reserved",                   3,   37, L"%x %x %x", Dump3Chars, NULL, NULL,                  NULL },
  { L"Base Address",               12,  40, NULL,        DumpGas,    NULL, NULL,                  NULL },
  { L"Interrupt Type",             1,   52, L"%d",       NULL,       NULL, ValidateInterruptType, NULL },
  { L"IRQ",                        1,   53, L"%d",       NULL,       NULL, ValidateIrq,           NULL },
  { L"Global System Interrupt",    4,   54, L"0x%x",     NULL,       NULL, NULL,                  NULL },
  { L"Baud Rate",                  1,   58, L"%d",       NULL,       NULL, NULL,                  NULL },
  { L"Parity",                     1,   59, L"%d",       NULL,       NULL, NULL,                  NULL },
  { L"Stop Bits",                  1,   60, L"%d",       NULL,       NULL, NULL,                  NULL },
  { L"Flow Control",               1,   61, L"0x%x",     NULL,       NULL, NULL,                  NULL },
  { L"Terminal Type",              1,   62, L"%d",       NULL,       NULL, NULL,                  NULL },
  { L"Reserved",                   1,   63, L"%x",       NULL,       NULL, NULL,                  NULL },
 
  { L"PCI Device ID",              2,   64, L"0x%x",     NULL,       NULL, NULL,                  NULL },
  { L"PCI Vendor ID",              2,   66, L"0x%x",     NULL,       NULL, NULL,                  NULL },
  { L"PCI Bus Number",             1,   68, L"0x%x",     NULL,       NULL, NULL,                  NULL },
  { L"PCI Device Number",          1,   69, L"0x%x",     NULL,       NULL, NULL,                  NULL },
  { L"PCI Function Number",        1,   70, L"0x%x",     NULL,       NULL, NULL,                  NULL },
  { L"PCI Flags",                  4,   71, L"0x%x",     NULL,       NULL, NULL,                  NULL },
  { L"PCI Segment",                1,   75, L"0x%x",     NULL,       NULL, NULL,                  NULL },
  { L"Reserved",                   4,   76, L"%x",       NULL,       NULL, NULL,                  NULL }
};
 
VOID
EFIAPI
ParseAcpiSpcr (
  IN BOOLEAN  Trace,
  IN UINT8    *Ptr,
  IN UINT32   AcpiTableLength,
  IN UINT8    AcpiTableRevision
  )
{
  if (!Trace) {
    return;
  }
 
  // Dump the SPCR
  ParseAcpi (
    TRUE,
    0,
    "SPCR",
    Ptr,
    AcpiTableLength,
    PARSER_PARAMS (SpcrParser)
    );
}