OvmfPkg/Bhyve/AcpiTables/Spcr.aslc

   1 /*
   2  * Copyright (c) 2020, Rebecca Cran <rebecca@bsdio.com>
   3  * Copyright (c) 2015, Nahanni Systems, Inc.
   4  *
   5  * SPDX-License-Identifier: BSD-2-Clause-Patent
   6  */
   7
   8 #include "Platform.h"
   9
  10 #define EFI_ACPI_OEM_TABLE_ID     SIGNATURE_64('B','V','S','P','C','R',' ',' ')
  11
  12 EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE SPCR = {
  13   {
  14     EFI_ACPI_2_0_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_SIGNATURE,
  15     sizeof (EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE),
  16     EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_REVISION,
  17     0,                          // to make sum of entire table == 0
  18     {EFI_ACPI_OEM_ID},          // OEMID is a 6 bytes long field
  19     EFI_ACPI_OEM_TABLE_ID,      // OEM table identification(8 bytes long)
  20     EFI_ACPI_OEM_REVISION,      // OEM revision number
  21     EFI_ACPI_CREATOR_ID,        // ASL compiler vendor ID
  22     EFI_ACPI_CREATOR_REVISION   // ASL compiler revision number
  23   },
  24   EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_INTERFACE_TYPE_16550,
  25   { 0 },                        // Reserved
  26   {                             // BaseAddress
  27     0x01,                       //   AddressSpaceId
  28     0x08,                       //   RegisterBitWidth
  29     0x00,                       //   RegisterBitOffset
  30     0x00,                       //   Reserved
  31     0x03F8                      //   Address (COM1)
  32   },
  33   EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_INTERRUPT_TYPE_8259,
  34   4,                            // Irq
  35   0,                            // GlobalSystemInterrupt
  36   EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_BAUD_RATE_115200,
  37   EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_PARITY_NO_PARITY,
  38   EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_STOP_BITS_1,
  39   0x03,                         // FlowControl: RTS/CTS | DCD
  40   EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_TERMINAL_TYPE_VT_UTF8,
  41   0,                            // Language
  42   0,                            // PciDeviceId
  43   0,                            // PciVendorId
  44   0,                            // PciBusNumber
  45   0,                            // PciDeviceNumber
  46   0,                            // PciFunctionNumber
  47   0,                            // PciFlags
  48   0,                            // PciSegment
  49   0                             // Reserved
  50 };
  51
  52
  53 VOID *
  54 ReferenceAcpiTable (
  55   VOID
  56   )
  57 {
  58   //
  59   // Reference the table being generated to prevent the optimizer from removing the
  60   // data structure from the exeutable
  61   //
  62   return (VOID*)&SPCR;
  63 }