diff options
Diffstat (limited to 'ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Spcr/SpcrParser.c')
| -rw-r--r-- | ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Spcr/SpcrParser.c | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Spcr/SpcrParser.c b/ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Spcr/SpcrParser.c new file mode 100644 index 0000000000..841a27ffdf --- /dev/null +++ b/ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Spcr/SpcrParser.c @@ -0,0 +1,168 @@ +/**
+ SPCR table parser
+
+ Copyright (c) 2016 - 2018, ARM Limited. All rights reserved.
+ This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+ @par Reference(s):
+ - Microsoft Serial Port Console Redirection Table
+ Specification - Version 1.03 - August 10, 2015.
+**/
+
+#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;
+
+/** This function validates the Interrupt Type.
+
+ @param [in] Ptr Pointer to the start of the field data.
+ @param [in] Context Pointer to context specific information e.g. this
+ could be a pointer to the ACPI table header.
+*/
+STATIC
+VOID
+EFIAPI
+ValidateInterruptType (
+ IN UINT8* Ptr,
+ IN VOID* Context
+ );
+
+/** This function validates the Irq.
+
+ @param [in] Ptr Pointer to the start of the field data.
+ @param [in] Context Pointer to context specific information e.g. this
+ could be a pointer to the ACPI table header.
+*/
+STATIC
+VOID
+EFIAPI
+ValidateIrq (
+ IN UINT8* Ptr,
+ IN VOID* Context
+ );
+
+/** An ACPI_PARSER array describing the ACPI SPCR Table.
+*/
+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}
+};
+
+/** This function validates the Interrupt Type.
+
+ @param [in] Ptr Pointer to the start of the field data.
+ @param [in] Context Pointer to context specific information e.g. this
+ could be a pointer to the ACPI table header.
+*/
+STATIC
+VOID
+EFIAPI
+ValidateInterruptType (
+ IN UINT8* Ptr,
+ IN VOID* Context
+ )
+{
+#if defined (MDE_CPU_ARM) || defined (MDE_CPU_AARCH64)
+ UINT8 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
+}
+
+/** This function validates the Irq.
+
+ @param [in] Ptr Pointer to the start of the field data.
+ @param [in] Context Pointer to context specific information e.g. this
+ could be a pointer to the ACPI table header.
+*/
+STATIC
+VOID
+EFIAPI
+ValidateIrq (
+ IN UINT8* Ptr,
+ IN VOID* Context
+ )
+{
+#if defined (MDE_CPU_ARM) || defined (MDE_CPU_AARCH64)
+ UINT8 Irq = *Ptr;
+ if (Irq != 0) {
+ IncrementErrorCount ();
+ Print (
+ L"\nERROR: Irq = %d. This must be zero on ARM Platforms\n",
+ Irq
+ );
+ }
+#endif
+}
+
+/** This function parses the ACPI SPCR table.
+ When trace is enabled this function parses the SPCR table and
+ traces the ACPI table fields.
+
+ This function also performs validations of the ACPI table fields.
+
+ @param [in] Trace If TRUE, trace the ACPI fields.
+ @param [in] Ptr Pointer to the start of the buffer.
+ @param [in] AcpiTableLength Length of the ACPI table.
+ @param [in] AcpiTableRevision Revision of the ACPI table.
+*/
+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)
+ );
+}
|