diff options
Diffstat (limited to 'CorebootPayloadPkg/SerialDxe/SerialIo.c')
| -rw-r--r-- | CorebootPayloadPkg/SerialDxe/SerialIo.c | 392 |
1 files changed, 0 insertions, 392 deletions
diff --git a/CorebootPayloadPkg/SerialDxe/SerialIo.c b/CorebootPayloadPkg/SerialDxe/SerialIo.c deleted file mode 100644 index cdede32166..0000000000 --- a/CorebootPayloadPkg/SerialDxe/SerialIo.c +++ /dev/null @@ -1,392 +0,0 @@ -/** @file
- Serial IO Abstraction for GDB stub. This allows an EFI consoles that shows up on the system
- running GDB. One console for error information and another console for user input/output.
-
- Basic packet format is $packet-data#checksum. So every command has 4 bytes of overhead: $,
- #, 0, 0. The 0 and 0 are the ascii characters for the checksum.
-
-
- Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
- Copyright (c) 2013, ARM Ltd. All rights reserved.<BR>
- Copyright (c) 2014, 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 <PiDxe.h>
-#include <Library/UefiLib.h>
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/DebugLib.h>
-#include <Library/SerialPortLib.h>
-#include <Library/PcdLib.h>
-
-#include <Protocol/SerialIo.h>
-
-typedef struct {
- VENDOR_DEVICE_PATH Guid;
- UART_DEVICE_PATH Uart;
- EFI_DEVICE_PATH_PROTOCOL End;
-} SIMPLE_TEXT_OUT_DEVICE_PATH;
-
-SIMPLE_TEXT_OUT_DEVICE_PATH mDevicePath = {
- {
- { HARDWARE_DEVICE_PATH, HW_VENDOR_DP, { sizeof (VENDOR_DEVICE_PATH), 0} },
- EFI_SERIAL_IO_PROTOCOL_GUID // Use the drivers GUID
- },
- {
- { MESSAGING_DEVICE_PATH, MSG_UART_DP, { sizeof (UART_DEVICE_PATH), 0} },
- 0, // Reserved
- FixedPcdGet64 (PcdUartDefaultBaudRate), // BaudRate
- FixedPcdGet8 (PcdUartDefaultDataBits), // DataBits
- FixedPcdGet8 (PcdUartDefaultParity), // Parity (N)
- FixedPcdGet8 (PcdUartDefaultStopBits) // StopBits
- },
- { END_DEVICE_PATH_TYPE, END_ENTIRE_DEVICE_PATH_SUBTYPE, { sizeof (EFI_DEVICE_PATH_PROTOCOL), 0 } }
-};
-
-EFI_HANDLE gHandle = NULL;
-
-/**
- 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.
-
-**/
-EFI_STATUS
-EFIAPI
-SerialReset (
- IN EFI_SERIAL_IO_PROTOCOL *This
- )
-{
- EFI_STATUS Status;
- EFI_TPL Tpl;
-
- Status = SerialPortInitialize ();
- if (EFI_ERROR(Status)) {
- return Status;
- }
-
- //
- // Set the Serial I/O mode and update the device path
- //
-
- Tpl = gBS->RaiseTPL (TPL_NOTIFY);
-
- //
- // Set the Serial I/O mode
- //
- This->Mode->ReceiveFifoDepth = 0;
- This->Mode->Timeout = 1000000;
- This->Mode->BaudRate = PcdGet64 (PcdUartDefaultBaudRate);
- This->Mode->DataBits = (UINT32)PcdGet8 (PcdUartDefaultDataBits);
- This->Mode->Parity = (UINT32)PcdGet8 (PcdUartDefaultParity);
- This->Mode->StopBits = (UINT32)PcdGet8 (PcdUartDefaultStopBits);
-
- //
- // Check if the device path has actually changed
- //
- if (mDevicePath.Uart.BaudRate == This->Mode->BaudRate &&
- mDevicePath.Uart.DataBits == (UINT8)This->Mode->DataBits &&
- mDevicePath.Uart.Parity == (UINT8)This->Mode->Parity &&
- mDevicePath.Uart.StopBits == (UINT8)This->Mode->StopBits
- ) {
- gBS->RestoreTPL (Tpl);
- return EFI_SUCCESS;
- }
-
- //
- // Update the device path
- //
- mDevicePath.Uart.BaudRate = This->Mode->BaudRate;
- mDevicePath.Uart.DataBits = (UINT8)This->Mode->DataBits;
- mDevicePath.Uart.Parity = (UINT8)This->Mode->Parity;
- mDevicePath.Uart.StopBits = (UINT8)This->Mode->StopBits;
-
- Status = gBS->ReinstallProtocolInterface (
- gHandle,
- &gEfiDevicePathProtocolGuid,
- &mDevicePath,
- &mDevicePath
- );
-
- gBS->RestoreTPL (Tpl);
-
- return Status;
-}
-
-
-/**
- Sets the baud rate, receive FIFO depth, transmit/receive 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 the
- device's default interface speed.
- @param ReceiveFifoDepth 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
- value 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.
-
-**/
-EFI_STATUS
-EFIAPI
-SerialSetAttributes (
- 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
- )
-{
- EFI_STATUS Status;
- EFI_TPL Tpl;
-
- //
- // Set the Serial I/O mode and update the device path
- //
-
- Tpl = gBS->RaiseTPL (TPL_NOTIFY);
-
- //
- // Set the Serial I/O mode
- //
- This->Mode->BaudRate = BaudRate;
- This->Mode->ReceiveFifoDepth = ReceiveFifoDepth;
- This->Mode->Timeout = Timeout;
- This->Mode->Parity = (UINT32)Parity;
- This->Mode->DataBits = (UINT32)DataBits;
- This->Mode->StopBits = (UINT32)StopBits;
-
- //
- // Check if the device path has actually changed
- //
- if (mDevicePath.Uart.BaudRate == BaudRate &&
- mDevicePath.Uart.Parity == (UINT8)Parity &&
- mDevicePath.Uart.DataBits == DataBits &&
- mDevicePath.Uart.StopBits == (UINT8)StopBits
- ) {
- gBS->RestoreTPL (Tpl);
- return EFI_SUCCESS;
- }
-
- //
- // Update the device path
- //
- mDevicePath.Uart.BaudRate = BaudRate;
- mDevicePath.Uart.DataBits = DataBits;
- mDevicePath.Uart.Parity = (UINT8) Parity;
- mDevicePath.Uart.StopBits = (UINT8) StopBits;
-
- Status = gBS->ReinstallProtocolInterface (
- gHandle,
- &gEfiDevicePathProtocolGuid,
- &mDevicePath,
- &mDevicePath
- );
-
- gBS->RestoreTPL (Tpl);
-
- return Status;
-}
-
-
-/**
- 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.
-
-**/
-EFI_STATUS
-EFIAPI
-SerialSetControl (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- IN UINT32 Control
- )
-{
- return EFI_UNSUPPORTED;
-}
-
-
-/**
- Retrieves the status of the control 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.
-
-**/
-EFI_STATUS
-EFIAPI
-SerialGetControl (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- OUT UINT32 *Control
- )
-{
- if (SerialPortPoll ()) {
- // If a character is pending don't set EFI_SERIAL_INPUT_BUFFER_EMPTY
- *Control = EFI_SERIAL_OUTPUT_BUFFER_EMPTY;
- } else {
- *Control = EFI_SERIAL_INPUT_BUFFER_EMPTY | EFI_SERIAL_OUTPUT_BUFFER_EMPTY;
- }
- return EFI_SUCCESS;
-}
-
-
-/**
- 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.
-
-**/
-EFI_STATUS
-EFIAPI
-SerialWrite (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- IN OUT UINTN *BufferSize,
- IN VOID *Buffer
- )
-{
- UINTN Count;
-
- Count = SerialPortWrite (Buffer, *BufferSize);
-
- if (Count != *BufferSize) {
- *BufferSize = Count;
- return EFI_TIMEOUT;
- }
-
- return EFI_SUCCESS;
-}
-
-/**
- Reads data from 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.
-
-**/
-
-EFI_STATUS
-EFIAPI
-SerialRead (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- IN OUT UINTN *BufferSize,
- OUT VOID *Buffer
- )
-{
- UINTN Count = 0;
-
- if (SerialPortPoll()) {
- Count = SerialPortRead (Buffer, *BufferSize);
- }
-
- if (Count != *BufferSize) {
- *BufferSize = Count;
- return EFI_TIMEOUT;
- }
-
- return EFI_SUCCESS;
-}
-
-//
-// Template used to initialize the GDB Serial IO protocols
-//
-EFI_SERIAL_IO_MODE gSerialIoMode = {
- 0, // ControlMask
- 0, // Timeout
- FixedPcdGet64 (PcdUartDefaultBaudRate), // BaudRate
- 1, // ReceiveFifoDepth
- FixedPcdGet8 (PcdUartDefaultDataBits), // DataBits
- FixedPcdGet8 (PcdUartDefaultParity), // Parity
- FixedPcdGet8 (PcdUartDefaultStopBits) // StopBits
-};
-
-
-EFI_SERIAL_IO_PROTOCOL gSerialIoTemplate = {
- SERIAL_IO_INTERFACE_REVISION,
- SerialReset,
- SerialSetAttributes,
- SerialSetControl,
- SerialGetControl,
- SerialWrite,
- SerialRead,
- &gSerialIoMode
-};
-
-/**
- Initialize the state information for the Serial Io Protocol
-
- @param ImageHandle of the loaded driver
- @param SystemTable Pointer to the System Table
-
- @retval EFI_SUCCESS Protocol registered
- @retval EFI_OUT_OF_RESOURCES Cannot allocate protocol data structure
- @retval EFI_DEVICE_ERROR Hardware problems
-
-**/
-EFI_STATUS
-EFIAPI
-SerialDxeInitialize (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- )
-{
- EFI_STATUS Status;
-
- // Make a new handle with Serial IO protocol and its device path on it.
- Status = gBS->InstallMultipleProtocolInterfaces (
- &gHandle,
- &gEfiSerialIoProtocolGuid, &gSerialIoTemplate,
- &gEfiDevicePathProtocolGuid, &mDevicePath,
- NULL
- );
- ASSERT_EFI_ERROR (Status);
-
- return Status;
-}
-
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