[mirror_edk2.git] / ShellPkg / Library / UefiShellAcpiViewCommandLib / Parsers / Gtdt / GtdtParser.c

/** @file\r
  GTDT table parser\r
\r
  Copyright (c) 2016 - 2018, ARM Limited. All rights reserved.\r
  This program and the accompanying materials\r
  are licensed and made available under the terms and conditions of the BSD License\r
  which accompanies this distribution.  The full text of the license may be found at\r
  http://opensource.org/licenses/bsd-license.php\r
\r
  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
  @par Reference(s):\r
    - ACPI 6.2 Specification - Errata A, September 2017\r
  **/\r
\r
#include <IndustryStandard/Acpi.h>\r
#include <Library/UefiLib.h>\r
#include "AcpiParser.h"\r
#include "AcpiTableParser.h"\r
\r
// Local variables\r
STATIC CONST UINT32* GtdtPlatformTimerCount;\r
STATIC CONST UINT32* GtdtPlatformTimerOffset;\r
STATIC CONST UINT8*  PlatformTimerType;\r
STATIC CONST UINT16* PlatformTimerLength;\r
STATIC CONST UINT32* GtBlockTimerCount;\r
STATIC CONST UINT32* GtBlockTimerOffset;\r
STATIC CONST UINT16* GtBlockLength;\r
STATIC ACPI_DESCRIPTION_HEADER_INFO AcpiHdrInfo;\r
\r
/**\r
  This function validates the GT Block timer count.\r
\r
  @param [in] Ptr     Pointer to the start of the field data.\r
  @param [in] Context Pointer to context specific information e.g. this\r
                      could be a pointer to the ACPI table header.\r
**/\r
STATIC\r
VOID\r
EFIAPI\r
ValidateGtBlockTimerCount (\r
  IN UINT8* Ptr,\r
  IN VOID*  Context\r
  );\r
\r
/**\r
  An ACPI_PARSER array describing the ACPI GTDT Table.\r
**/\r
STATIC CONST ACPI_PARSER GtdtParser[] = {\r
  PARSE_ACPI_HEADER (&AcpiHdrInfo),\r
  {L"CntControlBase Physical Address", 8, 36, L"0x%lx", NULL, NULL,\r
   NULL, NULL},\r
  {L"Reserved", 4, 44, L"0x%x", NULL, NULL, NULL, NULL},\r
  {L"Secure EL1 timer GSIV", 4, 48, L"0x%x", NULL, NULL, NULL, NULL},\r
  {L"Secure EL1 timer FLAGS", 4, 52, L"0x%x", NULL, NULL, NULL, NULL},\r
\r
  {L"Non-Secure EL1 timer GSIV", 4, 56, L"0x%x", NULL, NULL, NULL, NULL},\r
  {L"Non-Secure EL1 timer FLAGS", 4, 60, L"0x%x", NULL, NULL, NULL, NULL},\r
\r
  {L"Virtual timer GSIV", 4, 64, L"0x%x", NULL, NULL, NULL, NULL},\r
  {L"Virtual timer FLAGS", 4, 68, L"0x%x", NULL, NULL, NULL, NULL},\r
\r
  {L"Non-Secure EL2 timer GSIV", 4, 72, L"0x%x", NULL, NULL, NULL, NULL},\r
  {L"Non-Secure EL2 timer FLAGS", 4, 76, L"0x%x", NULL, NULL, NULL, NULL},\r
\r
  {L"CntReadBase Physical address", 8, 80, L"0x%lx", NULL, NULL, NULL, NULL},\r
  {L"Platform Timer Count", 4, 88, L"%d", NULL,\r
   (VOID**)&GtdtPlatformTimerCount, NULL, NULL},\r
  {L"Platform Timer Offset", 4, 92, L"0x%x", NULL,\r
   (VOID**)&GtdtPlatformTimerOffset, NULL, NULL}\r
};\r
\r
/**\r
  An ACPI_PARSER array describing the Platform timer header.\r
**/\r
STATIC CONST ACPI_PARSER GtPlatformTimerHeaderParser[] = {\r
  {L"Type", 1, 0, NULL, NULL, (VOID**)&PlatformTimerType, NULL, NULL},\r
  {L"Length", 2, 1, NULL, NULL, (VOID**)&PlatformTimerLength, NULL, NULL},\r
  {L"Reserved", 1, 3, NULL, NULL, NULL, NULL, NULL}\r
};\r
\r
/**\r
  An ACPI_PARSER array describing the Platform GT Block.\r
**/\r
STATIC CONST ACPI_PARSER GtBlockParser[] = {\r
  {L"Type", 1, 0, L"%d", NULL, NULL, NULL, NULL},\r
  {L"Length", 2, 1, L"%d", NULL, (VOID**)&GtBlockLength, NULL, NULL},\r
  {L"Reserved", 1, 3, L"%x", NULL, NULL, NULL, NULL},\r
  {L"Physical address (CntCtlBase)", 8, 4, L"0x%lx", NULL, NULL, NULL, NULL},\r
  {L"Timer Count", 4, 12, L"%d", NULL, (VOID**)&GtBlockTimerCount,\r
   ValidateGtBlockTimerCount, NULL},\r
  {L"Timer Offset", 4, 16, L"%d", NULL, (VOID**)&GtBlockTimerOffset, NULL,\r
    NULL}\r
};\r
\r
/**\r
  An ACPI_PARSER array describing the GT Block timer.\r
**/\r
STATIC CONST ACPI_PARSER GtBlockTimerParser[] = {\r
  {L"Frame Number", 1, 0, L"%d", NULL, NULL, NULL, NULL},\r
  {L"Reserved", 3, 1, L"%x %x %x", Dump3Chars, NULL, NULL, NULL},\r
  {L"Physical address (CntBaseX)", 8, 4, L"0x%lx", NULL, NULL, NULL, NULL},\r
  {L"Physical address (CntEL0BaseX)", 8, 12, L"0x%lx", NULL, NULL, NULL,\r
    NULL},\r
  {L"Physical Timer GSIV", 4, 20, L"0x%x", NULL, NULL, NULL, NULL},\r
  {L"Physical Timer Flags", 4, 24, L"0x%x", NULL, NULL, NULL, NULL},\r
  {L"Virtual Timer GSIV", 4, 28, L"0x%x", NULL, NULL, NULL, NULL},\r
  {L"Virtual Timer Flags", 4, 32, L"0x%x", NULL, NULL, NULL, NULL},\r
  {L"Common Flags", 4, 36, L"0x%x", NULL, NULL, NULL, NULL}\r
};\r
\r
/**\r
  An ACPI_PARSER array describing the Platform Watchdog.\r
**/\r
STATIC CONST ACPI_PARSER SBSAGenericWatchdogParser[] = {\r
  {L"Type", 1, 0, L"%d", NULL, NULL, NULL, NULL},\r
  {L"Length", 2, 1, L"%d", NULL, NULL, NULL, NULL},\r
  {L"Reserved", 1, 3, L"%x", NULL, NULL, NULL, NULL},\r
  {L"RefreshFrame Physical address", 8, 4, L"0x%lx", NULL, NULL, NULL, NULL},\r
  {L"ControlFrame Physical address", 8, 12, L"0x%lx", NULL, NULL, NULL, NULL},\r
  {L"Watchdog Timer GSIV", 4, 20, L"0x%x", NULL, NULL, NULL, NULL},\r
  {L"Watchdog Timer Flags", 4, 24, L"0x%x", NULL, NULL, NULL, NULL}\r
};\r
\r
/**\r
  This function validates the GT Block timer count.\r
\r
  @param [in] Ptr     Pointer to the start of the field data.\r
  @param [in] Context Pointer to context specific information e.g. this\r
                      could be a pointer to the ACPI table header.\r
**/\r
STATIC\r
VOID\r
EFIAPI\r
ValidateGtBlockTimerCount (\r
  IN UINT8* Ptr,\r
  IN VOID*  Context\r
  )\r
{\r
  UINT32 BlockTimerCount = *(UINT32*)Ptr;\r
  if (BlockTimerCount > 8) {\r
    IncrementErrorCount ();\r
    Print (\r
      L"\nERROR: Timer Count = %d. Max Timer Count is 8.",\r
      BlockTimerCount\r
      );\r
  }\r
}\r
\r
/**\r
  This function parses the Platform GT Block.\r
\r
  @param [in] Ptr     Pointer to the start of the GT Block data.\r
  @param [in] Length  Length of the GT Block structure.\r
**/\r
STATIC\r
VOID\r
DumpGTBlock (\r
  IN UINT8* Ptr,\r
  IN UINT16 Length\r
  )\r
{\r
  UINT32 Index;\r
  UINT32 Offset;\r
  UINT16 GTBlockTimerLength;\r
\r
  Offset = ParseAcpi (\r
             TRUE,\r
             2,\r
             "GT Block",\r
             Ptr,\r
             Length,\r
             PARSER_PARAMS (GtBlockParser)\r
             );\r
  GTBlockTimerLength = (*GtBlockLength - Offset) / (*GtBlockTimerCount);\r
  Length -= Offset;\r
\r
  if (*GtBlockTimerCount != 0) {\r
    Ptr += (*GtBlockTimerOffset);\r
    Index = 0;\r
    while ((Index < (*GtBlockTimerCount)) && (Length >= GTBlockTimerLength)) {\r
      Offset = ParseAcpi (\r
                 TRUE,\r
                 2,\r
                 "GT Block Timer",\r
                 Ptr,\r
                 GTBlockTimerLength,\r
                 PARSER_PARAMS (GtBlockTimerParser)\r
                 );\r
      // Increment by GT Block Timer structure size\r
      Ptr += Offset;\r
      Length -= Offset;\r
      Index++;\r
    }\r
\r
    if (Length != 0) {\r
      IncrementErrorCount ();\r
      Print (\r
        L"ERROR:GT Block Timer length mismatch. Unparsed %d bytes.\n",\r
        Length\r
        );\r
    }\r
  }\r
}\r
\r
/**\r
  This function parses the Platform Watchdog timer.\r
\r
  @param [in] Ptr     Pointer to the start of the watchdog timer data.\r
  @param [in] Length  Length of the watchdog timer structure.\r
**/\r
STATIC\r
VOID\r
DumpWatchdogTimer (\r
  IN UINT8* Ptr,\r
  IN UINT16 Length\r
  )\r
{\r
  ParseAcpi (\r
    TRUE,\r
    2,\r
    "SBSA Generic Watchdog",\r
    Ptr,\r
    Length,\r
    PARSER_PARAMS (SBSAGenericWatchdogParser)\r
    );\r
}\r
\r
/**\r
  This function parses the ACPI GTDT table.\r
  When trace is enabled this function parses the GTDT table and\r
  traces the ACPI table fields.\r
\r
  This function also parses the following platform timer structures:\r
    - GT Block timer\r
    - Watchdog timer\r
\r
  This function also performs validation of the ACPI table fields.\r
\r
  @param [in] Trace              If TRUE, trace the ACPI fields.\r
  @param [in] Ptr                Pointer to the start of the buffer.\r
  @param [in] AcpiTableLength    Length of the ACPI table.\r
  @param [in] AcpiTableRevision  Revision of the ACPI table.\r
**/\r
VOID\r
EFIAPI\r
ParseAcpiGtdt (\r
  IN BOOLEAN Trace,\r
  IN UINT8*  Ptr,\r
  IN UINT32  AcpiTableLength,\r
  IN UINT8   AcpiTableRevision\r
  )\r
{\r
  UINT32 Index;\r
  UINT8* TimerPtr;\r
\r
  if (!Trace) {\r
    return;\r
  }\r
\r
  ParseAcpi (\r
    TRUE,\r
    0,\r
    "GTDT",\r
    Ptr,\r
    AcpiTableLength,\r
    PARSER_PARAMS (GtdtParser)\r
    );\r
\r
  if (*GtdtPlatformTimerCount != 0) {\r
    TimerPtr = Ptr + (*GtdtPlatformTimerOffset);\r
    Index = 0;\r
    do {\r
      // Parse the Platform Timer Header\r
      ParseAcpi (\r
        FALSE,\r
        0,\r
        NULL,\r
        TimerPtr,\r
        4,  // GT Platform Timer structure header length.\r
        PARSER_PARAMS (GtPlatformTimerHeaderParser)\r
        );\r
      switch (*PlatformTimerType) {\r
        case EFI_ACPI_6_2_GTDT_GT_BLOCK:\r
          DumpGTBlock (TimerPtr, *PlatformTimerLength);\r
          break;\r
        case EFI_ACPI_6_2_GTDT_SBSA_GENERIC_WATCHDOG:\r
          DumpWatchdogTimer (TimerPtr, *PlatformTimerLength);\r
          break;\r
        default:\r
          IncrementErrorCount ();\r
          Print (\r
            L"ERROR: INVALID Platform Timer Type = %d\n",\r
            *PlatformTimerType\r
            );\r
          break;\r
      } // switch\r
      TimerPtr += (*PlatformTimerLength);\r
      Index++;\r
    } while (Index < *GtdtPlatformTimerCount);\r
  }\r
}\r
Commit	Line	Data
a6eaba4d	1	/** @file\r
ee4dc24f RN	2	GTDT table parser\r
	3	\r
	4	Copyright (c) 2016 - 2018, ARM Limited. All rights reserved.\r
	5	This program and the accompanying materials\r
	6	are licensed and made available under the terms and conditions of the BSD License\r
	7	which accompanies this distribution. The full text of the license may be found at\r
	8	http://opensource.org/licenses/bsd-license.php\r
	9	\r
	10	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	11	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	12	\r
	13	@par Reference(s):\r
	14	- ACPI 6.2 Specification - Errata A, September 2017\r
	15	**/\r
	16	\r
	17	#include <IndustryStandard/Acpi.h>\r
	18	#include <Library/UefiLib.h>\r
	19	#include "AcpiParser.h"\r
	20	#include "AcpiTableParser.h"\r
	21	\r
	22	// Local variables\r
	23	STATIC CONST UINT32* GtdtPlatformTimerCount;\r
	24	STATIC CONST UINT32* GtdtPlatformTimerOffset;\r
	25	STATIC CONST UINT8* PlatformTimerType;\r
	26	STATIC CONST UINT16* PlatformTimerLength;\r
	27	STATIC CONST UINT32* GtBlockTimerCount;\r
	28	STATIC CONST UINT32* GtBlockTimerOffset;\r
	29	STATIC CONST UINT16* GtBlockLength;\r
	30	STATIC ACPI_DESCRIPTION_HEADER_INFO AcpiHdrInfo;\r
	31	\r
a6eaba4d DB	32	/**\r
a6eaba4d DB	33	This function validates the GT Block timer count.\r
ee4dc24f RN	34	\r
	35	@param [in] Ptr Pointer to the start of the field data.\r
	36	@param [in] Context Pointer to context specific information e.g. this\r
	37	could be a pointer to the ACPI table header.\r
a6eaba4d	38	**/\r
ee4dc24f RN	39	STATIC\r
	40	VOID\r
	41	EFIAPI\r
	42	ValidateGtBlockTimerCount (\r
	43	IN UINT8* Ptr,\r
	44	IN VOID* Context\r
	45	);\r
	46	\r
a6eaba4d DB	47	/**\r
	48	An ACPI_PARSER array describing the ACPI GTDT Table.\r
	49	**/\r
ee4dc24f RN	50	STATIC CONST ACPI_PARSER GtdtParser[] = {\r
	51	PARSE_ACPI_HEADER (&AcpiHdrInfo),\r
	52	{L"CntControlBase Physical Address", 8, 36, L"0x%lx", NULL, NULL,\r
	53	NULL, NULL},\r
	54	{L"Reserved", 4, 44, L"0x%x", NULL, NULL, NULL, NULL},\r
	55	{L"Secure EL1 timer GSIV", 4, 48, L"0x%x", NULL, NULL, NULL, NULL},\r
	56	{L"Secure EL1 timer FLAGS", 4, 52, L"0x%x", NULL, NULL, NULL, NULL},\r
	57	\r
	58	{L"Non-Secure EL1 timer GSIV", 4, 56, L"0x%x", NULL, NULL, NULL, NULL},\r
	59	{L"Non-Secure EL1 timer FLAGS", 4, 60, L"0x%x", NULL, NULL, NULL, NULL},\r
	60	\r
	61	{L"Virtual timer GSIV", 4, 64, L"0x%x", NULL, NULL, NULL, NULL},\r
	62	{L"Virtual timer FLAGS", 4, 68, L"0x%x", NULL, NULL, NULL, NULL},\r
	63	\r
	64	{L"Non-Secure EL2 timer GSIV", 4, 72, L"0x%x", NULL, NULL, NULL, NULL},\r
	65	{L"Non-Secure EL2 timer FLAGS", 4, 76, L"0x%x", NULL, NULL, NULL, NULL},\r
	66	\r
	67	{L"CntReadBase Physical address", 8, 80, L"0x%lx", NULL, NULL, NULL, NULL},\r
	68	{L"Platform Timer Count", 4, 88, L"%d", NULL,\r
	69	(VOID**)&GtdtPlatformTimerCount, NULL, NULL},\r
	70	{L"Platform Timer Offset", 4, 92, L"0x%x", NULL,\r
	71	(VOID**)&GtdtPlatformTimerOffset, NULL, NULL}\r
	72	};\r
	73	\r
a6eaba4d DB	74	/**\r
	75	An ACPI_PARSER array describing the Platform timer header.\r
	76	**/\r
ee4dc24f RN	77	STATIC CONST ACPI_PARSER GtPlatformTimerHeaderParser[] = {\r
	78	{L"Type", 1, 0, NULL, NULL, (VOID**)&PlatformTimerType, NULL, NULL},\r
	79	{L"Length", 2, 1, NULL, NULL, (VOID**)&PlatformTimerLength, NULL, NULL},\r
	80	{L"Reserved", 1, 3, NULL, NULL, NULL, NULL, NULL}\r
	81	};\r
	82	\r
a6eaba4d DB	83	/**\r
	84	An ACPI_PARSER array describing the Platform GT Block.\r
	85	**/\r
ee4dc24f RN	86	STATIC CONST ACPI_PARSER GtBlockParser[] = {\r
	87	{L"Type", 1, 0, L"%d", NULL, NULL, NULL, NULL},\r
	88	{L"Length", 2, 1, L"%d", NULL, (VOID**)&GtBlockLength, NULL, NULL},\r
	89	{L"Reserved", 1, 3, L"%x", NULL, NULL, NULL, NULL},\r
	90	{L"Physical address (CntCtlBase)", 8, 4, L"0x%lx", NULL, NULL, NULL, NULL},\r
	91	{L"Timer Count", 4, 12, L"%d", NULL, (VOID**)&GtBlockTimerCount,\r
	92	ValidateGtBlockTimerCount, NULL},\r
	93	{L"Timer Offset", 4, 16, L"%d", NULL, (VOID**)&GtBlockTimerOffset, NULL,\r
	94	NULL}\r
	95	};\r
	96	\r
a6eaba4d DB	97	/**\r
	98	An ACPI_PARSER array describing the GT Block timer.\r
	99	**/\r
ee4dc24f RN	100	STATIC CONST ACPI_PARSER GtBlockTimerParser[] = {\r
	101	{L"Frame Number", 1, 0, L"%d", NULL, NULL, NULL, NULL},\r
	102	{L"Reserved", 3, 1, L"%x %x %x", Dump3Chars, NULL, NULL, NULL},\r
	103	{L"Physical address (CntBaseX)", 8, 4, L"0x%lx", NULL, NULL, NULL, NULL},\r
	104	{L"Physical address (CntEL0BaseX)", 8, 12, L"0x%lx", NULL, NULL, NULL,\r
	105	NULL},\r
	106	{L"Physical Timer GSIV", 4, 20, L"0x%x", NULL, NULL, NULL, NULL},\r
	107	{L"Physical Timer Flags", 4, 24, L"0x%x", NULL, NULL, NULL, NULL},\r
	108	{L"Virtual Timer GSIV", 4, 28, L"0x%x", NULL, NULL, NULL, NULL},\r
	109	{L"Virtual Timer Flags", 4, 32, L"0x%x", NULL, NULL, NULL, NULL},\r
	110	{L"Common Flags", 4, 36, L"0x%x", NULL, NULL, NULL, NULL}\r
	111	};\r
	112	\r
a6eaba4d DB	113	/**\r
	114	An ACPI_PARSER array describing the Platform Watchdog.\r
	115	**/\r
ee4dc24f RN	116	STATIC CONST ACPI_PARSER SBSAGenericWatchdogParser[] = {\r
	117	{L"Type", 1, 0, L"%d", NULL, NULL, NULL, NULL},\r
	118	{L"Length", 2, 1, L"%d", NULL, NULL, NULL, NULL},\r
	119	{L"Reserved", 1, 3, L"%x", NULL, NULL, NULL, NULL},\r
	120	{L"RefreshFrame Physical address", 8, 4, L"0x%lx", NULL, NULL, NULL, NULL},\r
	121	{L"ControlFrame Physical address", 8, 12, L"0x%lx", NULL, NULL, NULL, NULL},\r
	122	{L"Watchdog Timer GSIV", 4, 20, L"0x%x", NULL, NULL, NULL, NULL},\r
	123	{L"Watchdog Timer Flags", 4, 24, L"0x%x", NULL, NULL, NULL, NULL}\r
	124	};\r
	125	\r
a6eaba4d DB	126	/**\r
a6eaba4d DB	127	This function validates the GT Block timer count.\r
ee4dc24f RN	128	\r
	129	@param [in] Ptr Pointer to the start of the field data.\r
	130	@param [in] Context Pointer to context specific information e.g. this\r
	131	could be a pointer to the ACPI table header.\r
a6eaba4d	132	**/\r
ee4dc24f RN	133	STATIC\r
	134	VOID\r
	135	EFIAPI\r
	136	ValidateGtBlockTimerCount (\r
	137	IN UINT8* Ptr,\r
	138	IN VOID* Context\r
	139	)\r
	140	{\r
	141	UINT32 BlockTimerCount = (UINT32)Ptr;\r
	142	if (BlockTimerCount > 8) {\r
	143	IncrementErrorCount ();\r
	144	Print (\r
	145	L"\nERROR: Timer Count = %d. Max Timer Count is 8.",\r
	146	BlockTimerCount\r
	147	);\r
	148	}\r
	149	}\r
	150	\r
a6eaba4d DB	151	/**\r
a6eaba4d DB	152	This function parses the Platform GT Block.\r
ee4dc24f RN	153	\r
	154	@param [in] Ptr Pointer to the start of the GT Block data.\r
	155	@param [in] Length Length of the GT Block structure.\r
a6eaba4d	156	**/\r
ee4dc24f RN	157	STATIC\r
	158	VOID\r
	159	DumpGTBlock (\r
	160	IN UINT8* Ptr,\r
	161	IN UINT16 Length\r
	162	)\r
	163	{\r
	164	UINT32 Index;\r
	165	UINT32 Offset;\r
	166	UINT16 GTBlockTimerLength;\r
	167	\r
	168	Offset = ParseAcpi (\r
	169	TRUE,\r
	170	2,\r
	171	"GT Block",\r
	172	Ptr,\r
	173	Length,\r
	174	PARSER_PARAMS (GtBlockParser)\r
	175	);\r
	176	GTBlockTimerLength = (GtBlockLength - Offset) / (GtBlockTimerCount);\r
	177	Length -= Offset;\r
	178	\r
	179	if (*GtBlockTimerCount != 0) {\r
	180	Ptr += (*GtBlockTimerOffset);\r
	181	Index = 0;\r
	182	while ((Index < (*GtBlockTimerCount)) && (Length >= GTBlockTimerLength)) {\r
	183	Offset = ParseAcpi (\r
	184	TRUE,\r
	185	2,\r
	186	"GT Block Timer",\r
	187	Ptr,\r
	188	GTBlockTimerLength,\r
	189	PARSER_PARAMS (GtBlockTimerParser)\r
	190	);\r
	191	// Increment by GT Block Timer structure size\r
	192	Ptr += Offset;\r
	193	Length -= Offset;\r
	194	Index++;\r
	195	}\r
	196	\r
	197	if (Length != 0) {\r
	198	IncrementErrorCount ();\r
	199	Print (\r
	200	L"ERROR:GT Block Timer length mismatch. Unparsed %d bytes.\n",\r
	201	Length\r
	202	);\r
	203	}\r
	204	}\r
	205	}\r
	206	\r
a6eaba4d DB	207	/**\r
a6eaba4d DB	208	This function parses the Platform Watchdog timer.\r
ee4dc24f RN	209	\r
	210	@param [in] Ptr Pointer to the start of the watchdog timer data.\r
	211	@param [in] Length Length of the watchdog timer structure.\r
a6eaba4d	212	**/\r
ee4dc24f RN	213	STATIC\r
	214	VOID\r
	215	DumpWatchdogTimer (\r
	216	IN UINT8* Ptr,\r
	217	IN UINT16 Length\r
	218	)\r
	219	{\r
	220	ParseAcpi (\r
	221	TRUE,\r
	222	2,\r
	223	"SBSA Generic Watchdog",\r
	224	Ptr,\r
	225	Length,\r
	226	PARSER_PARAMS (SBSAGenericWatchdogParser)\r
	227	);\r
	228	}\r
	229	\r
a6eaba4d DB	230	/**\r
a6eaba4d DB	231	This function parses the ACPI GTDT table.\r
ee4dc24f RN	232	When trace is enabled this function parses the GTDT table and\r
	233	traces the ACPI table fields.\r
	234	\r
	235	This function also parses the following platform timer structures:\r
	236	- GT Block timer\r
	237	- Watchdog timer\r
	238	\r
	239	This function also performs validation of the ACPI table fields.\r
	240	\r
	241	@param [in] Trace If TRUE, trace the ACPI fields.\r
	242	@param [in] Ptr Pointer to the start of the buffer.\r
	243	@param [in] AcpiTableLength Length of the ACPI table.\r
	244	@param [in] AcpiTableRevision Revision of the ACPI table.\r
a6eaba4d	245	**/\r
ee4dc24f RN	246	VOID\r
	247	EFIAPI\r
	248	ParseAcpiGtdt (\r
	249	IN BOOLEAN Trace,\r
	250	IN UINT8* Ptr,\r
	251	IN UINT32 AcpiTableLength,\r
	252	IN UINT8 AcpiTableRevision\r
	253	)\r
	254	{\r
	255	UINT32 Index;\r
	256	UINT8* TimerPtr;\r
	257	\r
	258	if (!Trace) {\r
	259	return;\r
	260	}\r
	261	\r
	262	ParseAcpi (\r
	263	TRUE,\r
	264	0,\r
	265	"GTDT",\r
	266	Ptr,\r
	267	AcpiTableLength,\r
	268	PARSER_PARAMS (GtdtParser)\r
	269	);\r
	270	\r
	271	if (*GtdtPlatformTimerCount != 0) {\r
	272	TimerPtr = Ptr + (*GtdtPlatformTimerOffset);\r
	273	Index = 0;\r
	274	do {\r
	275	// Parse the Platform Timer Header\r
	276	ParseAcpi (\r
	277	FALSE,\r
	278	0,\r
	279	NULL,\r
	280	TimerPtr,\r
	281	4, // GT Platform Timer structure header length.\r
	282	PARSER_PARAMS (GtPlatformTimerHeaderParser)\r
	283	);\r
	284	switch (*PlatformTimerType) {\r
	285	case EFI_ACPI_6_2_GTDT_GT_BLOCK:\r
	286	DumpGTBlock (TimerPtr, *PlatformTimerLength);\r
	287	break;\r
	288	case EFI_ACPI_6_2_GTDT_SBSA_GENERIC_WATCHDOG:\r
	289	DumpWatchdogTimer (TimerPtr, *PlatformTimerLength);\r
	290	break;\r
	291	default:\r
	292	IncrementErrorCount ();\r
	293	Print (\r
	294	L"ERROR: INVALID Platform Timer Type = %d\n",\r
	295	*PlatformTimerType\r
	296	);\r
	297	break;\r
	298	} // switch\r
	299	TimerPtr += (*PlatformTimerLength);\r
	300	Index++;\r
	301	} while (Index < *GtdtPlatformTimerCount);\r
	302	}\r
	303	}\r