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[efi] Add definitions of GUIDs observed when booting shim.efi and gru…
…b.efi Signed-off-by: Michael Brown <mcb30@ipxe.org>
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/** @file | ||
Serial IO protocol as defined in the UEFI 2.0 specification. | ||
Abstraction of a basic serial device. Targeted at 16550 UART, but | ||
could be much more generic. | ||
Copyright (c) 2006 - 2008, 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. | ||
**/ | ||
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#ifndef __SERIAL_IO_PROTOCOL_H__ | ||
#define __SERIAL_IO_PROTOCOL_H__ | ||
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FILE_LICENCE ( BSD3 ); | ||
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#define EFI_SERIAL_IO_PROTOCOL_GUID \ | ||
{ \ | ||
0xBB25CF6F, 0xF1D4, 0x11D2, {0x9A, 0x0C, 0x00, 0x90, 0x27, 0x3F, 0xC1, 0xFD } \ | ||
} | ||
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/// | ||
/// Protocol GUID defined in EFI1.1. | ||
/// | ||
#define SERIAL_IO_PROTOCOL EFI_SERIAL_IO_PROTOCOL_GUID | ||
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typedef struct _EFI_SERIAL_IO_PROTOCOL EFI_SERIAL_IO_PROTOCOL; | ||
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/// | ||
/// Backward-compatible with EFI1.1. | ||
/// | ||
typedef EFI_SERIAL_IO_PROTOCOL SERIAL_IO_INTERFACE; | ||
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/// | ||
/// Parity type that is computed or checked as each character is transmitted or received. If the | ||
/// device does not support parity, the value is the default parity value. | ||
/// | ||
typedef enum { | ||
DefaultParity, | ||
NoParity, | ||
EvenParity, | ||
OddParity, | ||
MarkParity, | ||
SpaceParity | ||
} EFI_PARITY_TYPE; | ||
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/// | ||
/// Stop bits type | ||
/// | ||
typedef enum { | ||
DefaultStopBits, | ||
OneStopBit, | ||
OneFiveStopBits, | ||
TwoStopBits | ||
} EFI_STOP_BITS_TYPE; | ||
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// | ||
// define for Control bits, grouped by read only, write only, and read write | ||
// | ||
// | ||
// Read Only | ||
// | ||
#define EFI_SERIAL_CLEAR_TO_SEND 0x00000010 | ||
#define EFI_SERIAL_DATA_SET_READY 0x00000020 | ||
#define EFI_SERIAL_RING_INDICATE 0x00000040 | ||
#define EFI_SERIAL_CARRIER_DETECT 0x00000080 | ||
#define EFI_SERIAL_INPUT_BUFFER_EMPTY 0x00000100 | ||
#define EFI_SERIAL_OUTPUT_BUFFER_EMPTY 0x00000200 | ||
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// | ||
// Write Only | ||
// | ||
#define EFI_SERIAL_REQUEST_TO_SEND 0x00000002 | ||
#define EFI_SERIAL_DATA_TERMINAL_READY 0x00000001 | ||
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// | ||
// Read Write | ||
// | ||
#define EFI_SERIAL_HARDWARE_LOOPBACK_ENABLE 0x00001000 | ||
#define EFI_SERIAL_SOFTWARE_LOOPBACK_ENABLE 0x00002000 | ||
#define EFI_SERIAL_HARDWARE_FLOW_CONTROL_ENABLE 0x00004000 | ||
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// | ||
// Serial IO Member Functions | ||
// | ||
/** | ||
Reset the serial device. | ||
@param This Protocol instance pointer. | ||
@retval EFI_SUCCESS The device was reset. | ||
@retval EFI_DEVICE_ERROR The serial device could not be reset. | ||
**/ | ||
typedef | ||
EFI_STATUS | ||
(EFIAPI *EFI_SERIAL_RESET)( | ||
IN EFI_SERIAL_IO_PROTOCOL *This | ||
); | ||
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/** | ||
Sets the baud rate, receive FIFO depth, transmit/receice time out, parity, | ||
data buts, and stop bits on a serial device. | ||
@param This Protocol instance pointer. | ||
@param BaudRate The requested baud rate. A BaudRate value of 0 will use the | ||
device's default interface speed. | ||
@param ReveiveFifoDepth The requested depth of the FIFO on the receive side of the | ||
serial interface. A ReceiveFifoDepth value of 0 will use | ||
the device's default FIFO depth. | ||
@param Timeout The requested time out for a single character in microseconds. | ||
This timeout applies to both the transmit and receive side of the | ||
interface. A Timeout value of 0 will use the device's default time | ||
out value. | ||
@param Parity The type of parity to use on this serial device. A Parity value of | ||
DefaultParity will use the device's default parity value. | ||
@param DataBits The number of data bits to use on the serial device. A DataBits | ||
vaule of 0 will use the device's default data bit setting. | ||
@param StopBits The number of stop bits to use on this serial device. A StopBits | ||
value of DefaultStopBits will use the device's default number of | ||
stop bits. | ||
@retval EFI_SUCCESS The device was reset. | ||
@retval EFI_DEVICE_ERROR The serial device could not be reset. | ||
**/ | ||
typedef | ||
EFI_STATUS | ||
(EFIAPI *EFI_SERIAL_SET_ATTRIBUTES)( | ||
IN EFI_SERIAL_IO_PROTOCOL *This, | ||
IN UINT64 BaudRate, | ||
IN UINT32 ReceiveFifoDepth, | ||
IN UINT32 Timeout, | ||
IN EFI_PARITY_TYPE Parity, | ||
IN UINT8 DataBits, | ||
IN EFI_STOP_BITS_TYPE StopBits | ||
); | ||
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/** | ||
Set the control bits on a serial device | ||
@param This Protocol instance pointer. | ||
@param Control Set the bits of Control that are settable. | ||
@retval EFI_SUCCESS The new control bits were set on the serial device. | ||
@retval EFI_UNSUPPORTED The serial device does not support this operation. | ||
@retval EFI_DEVICE_ERROR The serial device is not functioning correctly. | ||
**/ | ||
typedef | ||
EFI_STATUS | ||
(EFIAPI *EFI_SERIAL_SET_CONTROL_BITS)( | ||
IN EFI_SERIAL_IO_PROTOCOL *This, | ||
IN UINT32 Control | ||
); | ||
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/** | ||
Retrieves the status of thecontrol bits on a serial device | ||
@param This Protocol instance pointer. | ||
@param Control A pointer to return the current Control signals from the serial device. | ||
@retval EFI_SUCCESS The control bits were read from the serial device. | ||
@retval EFI_DEVICE_ERROR The serial device is not functioning correctly. | ||
**/ | ||
typedef | ||
EFI_STATUS | ||
(EFIAPI *EFI_SERIAL_GET_CONTROL_BITS)( | ||
IN EFI_SERIAL_IO_PROTOCOL *This, | ||
OUT UINT32 *Control | ||
); | ||
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/** | ||
Writes data to a serial device. | ||
@param This Protocol instance pointer. | ||
@param BufferSize On input, the size of the Buffer. On output, the amount of | ||
data actually written. | ||
@param Buffer The buffer of data to write | ||
@retval EFI_SUCCESS The data was written. | ||
@retval EFI_DEVICE_ERROR The device reported an error. | ||
@retval EFI_TIMEOUT The data write was stopped due to a timeout. | ||
**/ | ||
typedef | ||
EFI_STATUS | ||
(EFIAPI *EFI_SERIAL_WRITE)( | ||
IN EFI_SERIAL_IO_PROTOCOL *This, | ||
IN OUT UINTN *BufferSize, | ||
IN VOID *Buffer | ||
); | ||
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/** | ||
Writes data to a serial device. | ||
@param This Protocol instance pointer. | ||
@param BufferSize On input, the size of the Buffer. On output, the amount of | ||
data returned in Buffer. | ||
@param Buffer The buffer to return the data into. | ||
@retval EFI_SUCCESS The data was read. | ||
@retval EFI_DEVICE_ERROR The device reported an error. | ||
@retval EFI_TIMEOUT The data write was stopped due to a timeout. | ||
**/ | ||
typedef | ||
EFI_STATUS | ||
(EFIAPI *EFI_SERIAL_READ)( | ||
IN EFI_SERIAL_IO_PROTOCOL *This, | ||
IN OUT UINTN *BufferSize, | ||
OUT VOID *Buffer | ||
); | ||
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/** | ||
@par Data Structure Description: | ||
The data values in SERIAL_IO_MODE are read-only and are updated by the code | ||
that produces the SERIAL_IO_PROTOCOL member functions. | ||
@param ControlMask | ||
A mask for the Control bits that the device supports. The device | ||
must always support the Input Buffer Empty control bit. | ||
@param TimeOut | ||
If applicable, the number of microseconds to wait before timing out | ||
a Read or Write operation. | ||
@param BaudRate | ||
If applicable, the current baud rate setting of the device; otherwise, | ||
baud rate has the value of zero to indicate that device runs at the | ||
device's designed speed. | ||
@param ReceiveFifoDepth | ||
The number of characters the device will buffer on input | ||
@param DataBits | ||
The number of characters the device will buffer on input | ||
@param Parity | ||
If applicable, this is the EFI_PARITY_TYPE that is computed or | ||
checked as each character is transmitted or reveived. If the device | ||
does not support parity the value is the default parity value. | ||
@param StopBits | ||
If applicable, the EFI_STOP_BITS_TYPE number of stop bits per | ||
character. If the device does not support stop bits the value is | ||
the default stop bit values. | ||
**/ | ||
typedef struct { | ||
UINT32 ControlMask; | ||
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// | ||
// current Attributes | ||
// | ||
UINT32 Timeout; | ||
UINT64 BaudRate; | ||
UINT32 ReceiveFifoDepth; | ||
UINT32 DataBits; | ||
UINT32 Parity; | ||
UINT32 StopBits; | ||
} EFI_SERIAL_IO_MODE; | ||
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#define EFI_SERIAL_IO_PROTOCOL_REVISION 0x00010000 | ||
#define SERIAL_IO_INTERFACE_REVISION EFI_SERIAL_IO_PROTOCOL_REVISION | ||
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/// | ||
/// The Serial I/O protocol is used to communicate with UART-style serial devices. | ||
/// These can be standard UART serial ports in PC-AT systems, serial ports attached | ||
/// to a USB interface, or potentially any character-based I/O device. | ||
/// | ||
struct _EFI_SERIAL_IO_PROTOCOL { | ||
/// | ||
/// The revision to which the EFI_SERIAL_IO_PROTOCOL adheres. All future revisions | ||
/// must be backwards compatible. If a future version is not backwards compatible, | ||
/// it is not the same GUID. | ||
/// | ||
UINT32 Revision; | ||
EFI_SERIAL_RESET Reset; | ||
EFI_SERIAL_SET_ATTRIBUTES SetAttributes; | ||
EFI_SERIAL_SET_CONTROL_BITS SetControl; | ||
EFI_SERIAL_GET_CONTROL_BITS GetControl; | ||
EFI_SERIAL_WRITE Write; | ||
EFI_SERIAL_READ Read; | ||
/// | ||
/// Pointer to SERIAL_IO_MODE data. | ||
/// | ||
EFI_SERIAL_IO_MODE *Mode; | ||
}; | ||
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extern EFI_GUID gEfiSerialIoProtocolGuid; | ||
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#endif |
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