/*
 * Copyright (c) 2020, Rebecca Cran <rebecca@bsdio.com>
 * Copyright (c) 2015, Nahanni Systems, Inc.
 *
 * SPDX-License-Identifier: BSD-2-Clause-Patent
 */

#include "Platform.h"

#define EFI_ACPI_OEM_TABLE_ID     SIGNATURE_64('B','V','S','P','C','R',' ',' ')

EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE SPCR = {
  {
    EFI_ACPI_2_0_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_SIGNATURE,
    sizeof (EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE),
    EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_REVISION,
    0,                          // to make sum of entire table == 0
    {EFI_ACPI_OEM_ID},          // OEMID is a 6 bytes long field
    EFI_ACPI_OEM_TABLE_ID,      // OEM table identification(8 bytes long)
    EFI_ACPI_OEM_REVISION,      // OEM revision number
    EFI_ACPI_CREATOR_ID,        // ASL compiler vendor ID
    EFI_ACPI_CREATOR_REVISION   // ASL compiler revision number
  },
  EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_INTERFACE_TYPE_16550,
  { 0 },                        // Reserved
  {                             // BaseAddress
    0x01,                       //   AddressSpaceId
    0x08,                       //   RegisterBitWidth
    0x00,                       //   RegisterBitOffset
    0x00,                       //   Reserved
    0x03F8                      //   Address (COM1)
  },
  EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_INTERRUPT_TYPE_8259,
  4,                            // Irq
  0,                            // GlobalSystemInterrupt
  EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_BAUD_RATE_115200,
  EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_PARITY_NO_PARITY,
  EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_STOP_BITS_1,
  0x03,                         // FlowControl: RTS/CTS | DCD
  EFI_ACPI_SERIAL_PORT_CONSOLE_REDIRECTION_TABLE_TERMINAL_TYPE_VT_UTF8,
  0,                            // Language
  0,                            // PciDeviceId
  0,                            // PciVendorId
  0,                            // PciBusNumber
  0,                            // PciDeviceNumber
  0,                            // PciFunctionNumber
  0,                            // PciFlags
  0,                            // PciSegment
  0                             // Reserved
};


VOID *
ReferenceAcpiTable (
  VOID
  )
{
  //
  // Reference the table being generated to prevent the optimizer from removing the
  // data structure from the exeutable
  //
  return (VOID*)&SPCR;
}