Michael Kinney f4d575b51b OvmgPkg/PlatformBootManagerLib: Add Debug Agent console
The Debug Agent in the SourceLevelDebugPkg can multiplex
both source level debug messages and console messages on
the same UART.  When this is done, the Debug Agent owns
the UART device and an additional device handle with a
Serial I/O Protocol is produced with a VenHw device path
node.

In order for a platform to provide a UART based console
when the Debug Agent is using the same UART device, the
PlatformBootManagerLib must consider the SerialI/O
Protocol produces by the Debug Agent as one of the
supported consoles.

Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Jeff Fan <jeff.fan@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Michael Kinney <michael.d.kinney@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2017-01-10 12:42:09 -08:00

94 lines
2.3 KiB
C

/** @file
Defined the platform specific device path which will be used by
platform Bbd to perform the platform policy connect.
Copyright (c) 2004 - 2017, Intel Corporation. All rights reserved.<BR>
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.
**/
#include "BdsPlatform.h"
//
// Debug Agent UART Device Path structure
//
#pragma pack(1)
typedef struct {
VENDOR_DEVICE_PATH VendorHardware;
UART_DEVICE_PATH Uart;
VENDOR_DEVICE_PATH TerminalType;
EFI_DEVICE_PATH_PROTOCOL End;
} VENDOR_UART_DEVICE_PATH;
#pragma pack()
ACPI_HID_DEVICE_PATH gPnpPs2KeyboardDeviceNode = gPnpPs2Keyboard;
ACPI_HID_DEVICE_PATH gPnp16550ComPortDeviceNode = gPnp16550ComPort;
UART_DEVICE_PATH gUartDeviceNode = gUart;
VENDOR_DEVICE_PATH gTerminalTypeDeviceNode = gPcAnsiTerminal;
//
// Platform specific keyboard device path
//
//
// Debug Agent UART Device Path
//
VENDOR_UART_DEVICE_PATH gDebugAgentUartDevicePath = {
{
{
HARDWARE_DEVICE_PATH,
HW_VENDOR_DP,
{
(UINT8) (sizeof (VENDOR_DEVICE_PATH)),
(UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8)
}
},
EFI_DEBUG_AGENT_GUID,
},
{
{
MESSAGING_DEVICE_PATH,
MSG_UART_DP,
{
(UINT8) (sizeof (UART_DEVICE_PATH)),
(UINT8) ((sizeof (UART_DEVICE_PATH)) >> 8)
}
},
0, // Reserved
0, // BaudRate - Default
0, // DataBits - Default
0, // Parity - Default
0, // StopBits - Default
},
gPcAnsiTerminal,
gEndEntire
};
//
// Predefined platform default console device path
//
PLATFORM_CONSOLE_CONNECT_ENTRY gPlatformConsole[] = {
{
(EFI_DEVICE_PATH_PROTOCOL *) &gDebugAgentUartDevicePath,
(CONSOLE_OUT | CONSOLE_IN | STD_ERROR)
},
{
NULL,
0
}
};
//
// Predefined platform connect sequence
//
EFI_DEVICE_PATH_PROTOCOL *gPlatformConnectSequence[] = { NULL };