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authorMaurice Ma <maurice.ma@intel.com>2016-05-16 08:29:40 -0700
committerMaurice Ma <maurice.ma@intel.com>2016-05-17 07:20:06 -0700
commitb41ef32518095f783d0c2343b496cc857c6f3dff (patch)
tree8bdca9f82185535e621fb1b41a9936f3a48ec922 /CorebootModulePkg
parent1fed57ab5d6961c43866b98c6ef56e1740373b1c (diff)
downloadedk2-platforms-b41ef32518095f783d0c2343b496cc857c6f3dff.tar.xz
CorebootModulePkg: Remove PciSioSerialDxe and SerialDxe driver
CorebootPayloadPkg has been changed to use generic SerialDxe driver from MdeModulePkg. As part of the clean-up, the overridden SerialDxe and PciSioSerialDxe drivers in CorebootModulePkg need to be removed. Cc: Prince Agyeman <prince.agyeman@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Maurice Ma <maurice.ma@intel.com> Reviewed-by: Lee Leahy <leroy.p.leahy@intel.com>
Diffstat (limited to 'CorebootModulePkg')
-rw-r--r--CorebootModulePkg/PciSioSerialDxe/ComponentName.c288
-rw-r--r--CorebootModulePkg/PciSioSerialDxe/PciSioSerialDxe.inf82
-rw-r--r--CorebootModulePkg/PciSioSerialDxe/PciSioSerialDxe.uni21
-rw-r--r--CorebootModulePkg/PciSioSerialDxe/PciSioSerialDxeExtra.uni18
-rw-r--r--CorebootModulePkg/PciSioSerialDxe/Serial.c1248
-rw-r--r--CorebootModulePkg/PciSioSerialDxe/Serial.h789
-rw-r--r--CorebootModulePkg/PciSioSerialDxe/SerialIo.c1320
-rw-r--r--CorebootModulePkg/SerialDxe/SerialDxe.inf55
-rw-r--r--CorebootModulePkg/SerialDxe/SerialDxe.uni21
-rw-r--r--CorebootModulePkg/SerialDxe/SerialDxeExtra.uni19
-rw-r--r--CorebootModulePkg/SerialDxe/SerialIo.c528
11 files changed, 0 insertions, 4389 deletions
diff --git a/CorebootModulePkg/PciSioSerialDxe/ComponentName.c b/CorebootModulePkg/PciSioSerialDxe/ComponentName.c
deleted file mode 100644
index ca8b1bdb4e..0000000000
--- a/CorebootModulePkg/PciSioSerialDxe/ComponentName.c
+++ /dev/null
@@ -1,288 +0,0 @@
-/** @file
- UEFI Component Name and Name2 protocol for Isa serial driver.
-
-Copyright (c) 2006 - 2015, 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 "Serial.h"
-
-//
-// EFI Component Name Protocol
-//
-GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL gPciSioSerialComponentName = {
- SerialComponentNameGetDriverName,
- SerialComponentNameGetControllerName,
- "eng"
-};
-
-//
-// EFI Component Name 2 Protocol
-//
-GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gPciSioSerialComponentName2 = {
- (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) SerialComponentNameGetDriverName,
- (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) SerialComponentNameGetControllerName,
- "en"
-};
-
-
-GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mSerialDriverNameTable[] = {
- {
- "eng;en",
- L"PCI SIO Serial Driver"
- },
- {
- NULL,
- NULL
- }
-};
-
-GLOBAL_REMOVE_IF_UNREFERENCED CHAR16 mSioSerialPortName[] = L"SIO Serial Port #%d";
-GLOBAL_REMOVE_IF_UNREFERENCED CHAR16 mPciSerialPortName[] = L"PCI Serial Port #%d";
-
-/**
- Retrieves a Unicode string that is the user readable name of the driver.
-
- This function retrieves the user readable name of a driver in the form of a
- Unicode string. If the driver specified by This has a user readable name in
- the language specified by Language, then a pointer to the driver name is
- returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
- by This does not support the language specified by Language,
- then EFI_UNSUPPORTED is returned.
-
- @param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
- EFI_COMPONENT_NAME_PROTOCOL instance.
-
- @param Language[in] A pointer to a Null-terminated ASCII string
- array indicating the language. This is the
- language of the driver name that the caller is
- requesting, and it must match one of the
- languages specified in SupportedLanguages. The
- number of languages supported by a driver is up
- to the driver writer. Language is specified
- in RFC 4646 or ISO 639-2 language code format.
-
- @param DriverName[out] A pointer to the Unicode string to return.
- This Unicode string is the name of the
- driver specified by This in the language
- specified by Language.
-
- @retval EFI_SUCCESS The Unicode string for the Driver specified by
- This and the language specified by Language was
- returned in DriverName.
-
- @retval EFI_INVALID_PARAMETER Language is NULL.
-
- @retval EFI_INVALID_PARAMETER DriverName is NULL.
-
- @retval EFI_UNSUPPORTED The driver specified by This does not support
- the language specified by Language.
-
-**/
-EFI_STATUS
-EFIAPI
-SerialComponentNameGetDriverName (
- IN EFI_COMPONENT_NAME_PROTOCOL *This,
- IN CHAR8 *Language,
- OUT CHAR16 **DriverName
- )
-{
- return LookupUnicodeString2 (
- Language,
- This->SupportedLanguages,
- mSerialDriverNameTable,
- DriverName,
- (BOOLEAN)(This == &gPciSioSerialComponentName)
- );
-}
-
-/**
- Retrieves a Unicode string that is the user readable name of the controller
- that is being managed by a driver.
-
- This function retrieves the user readable name of the controller specified by
- ControllerHandle and ChildHandle in the form of a Unicode string. If the
- driver specified by This has a user readable name in the language specified by
- Language, then a pointer to the controller name is returned in ControllerName,
- and EFI_SUCCESS is returned. If the driver specified by This is not currently
- managing the controller specified by ControllerHandle and ChildHandle,
- then EFI_UNSUPPORTED is returned. If the driver specified by This does not
- support the language specified by Language, then EFI_UNSUPPORTED is returned.
-
- @param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
- EFI_COMPONENT_NAME_PROTOCOL instance.
-
- @param ControllerHandle[in] The handle of a controller that the driver
- specified by This is managing. This handle
- specifies the controller whose name is to be
- returned.
-
- @param ChildHandle[in] The handle of the child controller to retrieve
- the name of. This is an optional parameter that
- may be NULL. It will be NULL for device
- drivers. It will also be NULL for a bus drivers
- that wish to retrieve the name of the bus
- controller. It will not be NULL for a bus
- driver that wishes to retrieve the name of a
- child controller.
-
- @param Language[in] A pointer to a Null-terminated ASCII string
- array indicating the language. This is the
- language of the driver name that the caller is
- requesting, and it must match one of the
- languages specified in SupportedLanguages. The
- number of languages supported by a driver is up
- to the driver writer. Language is specified in
- RFC 4646 or ISO 639-2 language code format.
-
- @param ControllerName[out] A pointer to the Unicode string to return.
- This Unicode string is the name of the
- controller specified by ControllerHandle and
- ChildHandle in the language specified by
- Language from the point of view of the driver
- specified by This.
-
- @retval EFI_SUCCESS The Unicode string for the user readable name in
- the language specified by Language for the
- driver specified by This was returned in
- DriverName.
-
- @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
-
- @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
- EFI_HANDLE.
-
- @retval EFI_INVALID_PARAMETER Language is NULL.
-
- @retval EFI_INVALID_PARAMETER ControllerName is NULL.
-
- @retval EFI_UNSUPPORTED The driver specified by This is not currently
- managing the controller specified by
- ControllerHandle and ChildHandle.
-
- @retval EFI_UNSUPPORTED The driver specified by This does not support
- the language specified by Language.
-
-**/
-EFI_STATUS
-EFIAPI
-SerialComponentNameGetControllerName (
- IN EFI_COMPONENT_NAME_PROTOCOL *This,
- IN EFI_HANDLE ControllerHandle,
- IN EFI_HANDLE ChildHandle OPTIONAL,
- IN CHAR8 *Language,
- OUT CHAR16 **ControllerName
- )
-{
- EFI_STATUS Status;
- EFI_SERIAL_IO_PROTOCOL *SerialIo;
- SERIAL_DEV *SerialDevice;
- EFI_UNICODE_STRING_TABLE *ControllerNameTable;
- EFI_GUID *IoProtocolGuid;
-
- //
- // Make sure this driver is currently managing ControllerHandle
- //
- IoProtocolGuid = &gEfiSioProtocolGuid;
- Status = EfiTestManagedDevice (
- ControllerHandle,
- gSerialControllerDriver.DriverBindingHandle,
- IoProtocolGuid
- );
- if (EFI_ERROR (Status)) {
- IoProtocolGuid = &gEfiPciIoProtocolGuid;
- Status = EfiTestManagedDevice (
- ControllerHandle,
- gSerialControllerDriver.DriverBindingHandle,
- IoProtocolGuid
- );
- }
-
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- ControllerNameTable = NULL;
- if (ChildHandle != NULL) {
- Status = EfiTestChildHandle (
- ControllerHandle,
- ChildHandle,
- IoProtocolGuid
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- //
- // Get the Serial I/O Protocol from the child handle
- //
- Status = gBS->OpenProtocol (
- ChildHandle,
- &gEfiSerialIoProtocolGuid,
- (VOID **) &SerialIo,
- gSerialControllerDriver.DriverBindingHandle,
- ChildHandle,
- EFI_OPEN_PROTOCOL_GET_PROTOCOL
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- //
- // Get the Serial Controller's Device structure
- //
- SerialDevice = SERIAL_DEV_FROM_THIS (SerialIo);
- ControllerNameTable = SerialDevice->ControllerNameTable;
- }
-
- return LookupUnicodeString2 (
- Language,
- This->SupportedLanguages,
- ControllerNameTable,
- ControllerName,
- (BOOLEAN)(This == &gPciSioSerialComponentName)
- );
-}
-
-/**
- Add the ISO639-2 and RFC4646 component name both for the Serial IO device
-
- @param SerialDevice A pointer to the SERIAL_DEV instance.
- @param Instance Instance ID for the serial device.
-**/
-VOID
-AddName (
- IN SERIAL_DEV *SerialDevice,
- IN UINT32 Instance
- )
-{
- CHAR16 SerialPortName[SERIAL_PORT_NAME_LEN];
- UnicodeSPrint (
- SerialPortName,
- sizeof (SerialPortName),
- (SerialDevice->PciDeviceInfo != NULL) ? PCI_SERIAL_PORT_NAME : SIO_SERIAL_PORT_NAME,
- Instance
- );
- AddUnicodeString2 (
- "eng",
- gPciSioSerialComponentName.SupportedLanguages,
- &SerialDevice->ControllerNameTable,
- SerialPortName,
- TRUE
- );
- AddUnicodeString2 (
- "en",
- gPciSioSerialComponentName2.SupportedLanguages,
- &SerialDevice->ControllerNameTable,
- SerialPortName,
- FALSE
- );
-
-}
diff --git a/CorebootModulePkg/PciSioSerialDxe/PciSioSerialDxe.inf b/CorebootModulePkg/PciSioSerialDxe/PciSioSerialDxe.inf
deleted file mode 100644
index 6bbd414626..0000000000
--- a/CorebootModulePkg/PciSioSerialDxe/PciSioSerialDxe.inf
+++ /dev/null
@@ -1,82 +0,0 @@
-## @file
-# Serial driver for standard UARTS on a SIO chip or PCI/PCIE card.
-#
-# Produces the Serial I/O protocol for standard UARTS using Super I/O or PCI I/O.
-#
-# Copyright (c) 2007 - 2015, 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.
-#
-##
-
-[Defines]
- INF_VERSION = 0x00010005
- BASE_NAME = PciSioSerialDxe
- MODULE_UNI_FILE = PciSioSerialDxe.uni
- FILE_GUID = BD81CC8D-B89F-422d-BDB8-9331ACE732E8
- MODULE_TYPE = UEFI_DRIVER
- VERSION_STRING = 1.0
- ENTRY_POINT = InitializePciSioSerial
-
-#
-# The following information is for reference only and not required by the build tools.
-#
-# VALID_ARCHITECTURES = IA32 X64 IPF EBC
-#
-# DRIVER_BINDING = gSerialControllerDriver
-# COMPONENT_NAME = gPciSioSerialComponentName
-# COMPONENT_NAME2 = gPciSioSerialComponentName2
-#
-
-[Sources]
- ComponentName.c
- SerialIo.c
- Serial.h
- Serial.c
-
-[Packages]
- MdePkg/MdePkg.dec
- MdeModulePkg/MdeModulePkg.dec
-
-[LibraryClasses]
- PcdLib
- PlatformHookLib
- ReportStatusCodeLib
- UefiBootServicesTableLib
- MemoryAllocationLib
- BaseMemoryLib
- DevicePathLib
- UefiLib
- UefiDriverEntryPoint
- DebugLib
- IoLib
-
-[Guids]
- gEfiUartDevicePathGuid ## SOMETIMES_CONSUMES ## GUID
-
-[Protocols]
- gEfiSioProtocolGuid ## TO_START
- gEfiDevicePathProtocolGuid ## TO_START
- gEfiPciIoProtocolGuid ## TO_START
- gEfiSerialIoProtocolGuid ## BY_START
- gEfiDevicePathProtocolGuid ## BY_START
-
-[FeaturePcd]
- gEfiMdeModulePkgTokenSpaceGuid.PcdSerialUseHalfHandshake|FALSE ## CONSUMES
-
-[Pcd]
- gEfiMdePkgTokenSpaceGuid.PcdUartDefaultBaudRate ## CONSUMES
- gEfiMdePkgTokenSpaceGuid.PcdUartDefaultDataBits ## CONSUMES
- gEfiMdePkgTokenSpaceGuid.PcdUartDefaultParity ## CONSUMES
- gEfiMdePkgTokenSpaceGuid.PcdUartDefaultStopBits ## CONSUMES
- gEfiMdeModulePkgTokenSpaceGuid.PcdSerialClockRate ## CONSUMES
- gEfiMdeModulePkgTokenSpaceGuid.PcdPciSerialParameters ## CONSUMES
-
-[UserExtensions.TianoCore."ExtraFiles"]
- PciSioSerialDxeExtra.uni
diff --git a/CorebootModulePkg/PciSioSerialDxe/PciSioSerialDxe.uni b/CorebootModulePkg/PciSioSerialDxe/PciSioSerialDxe.uni
deleted file mode 100644
index 50d3bd43be..0000000000
--- a/CorebootModulePkg/PciSioSerialDxe/PciSioSerialDxe.uni
+++ /dev/null
@@ -1,21 +0,0 @@
-// /** @file
-// Serial driver for standard UARTS on a SIO chip or PCI/PCIE card.
-//
-// Produces the Serial I/O protocol for standard UARTS using Super I/O or PCI I/O.
-//
-// Copyright (c) 2007 - 2015, 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.
-//
-// **/
-
-
-#string STR_MODULE_ABSTRACT #language en-US "Serial driver for standard UARTS on a SIO chip or PCI/PCIE card."
-
-#string STR_MODULE_DESCRIPTION #language en-US "Produces the Serial I/O protocol for standard UARTS using Super I/O or PCI I/O."
diff --git a/CorebootModulePkg/PciSioSerialDxe/PciSioSerialDxeExtra.uni b/CorebootModulePkg/PciSioSerialDxe/PciSioSerialDxeExtra.uni
deleted file mode 100644
index 36b62ac865..0000000000
--- a/CorebootModulePkg/PciSioSerialDxe/PciSioSerialDxeExtra.uni
+++ /dev/null
@@ -1,18 +0,0 @@
-// /** @file
-// PciSioSerialDxe Localized Strings and Content
-//
-// Copyright (c) 2013 - 2015, 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.
-//
-// **/
-
-#string STR_PROPERTIES_MODULE_NAME
-#language en-US
-"PCI SIO UART Serial Bus DXE Driver"
diff --git a/CorebootModulePkg/PciSioSerialDxe/Serial.c b/CorebootModulePkg/PciSioSerialDxe/Serial.c
deleted file mode 100644
index 2f1a9a000b..0000000000
--- a/CorebootModulePkg/PciSioSerialDxe/Serial.c
+++ /dev/null
@@ -1,1248 +0,0 @@
-/** @file
- Serial driver for PCI or SIO UARTS.
-
-Copyright (c) 2006 - 2015, 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 "Serial.h"
-
-//
-// ISA Serial Driver Global Variables
-//
-
-EFI_DRIVER_BINDING_PROTOCOL gSerialControllerDriver = {
- SerialControllerDriverSupported,
- SerialControllerDriverStart,
- SerialControllerDriverStop,
- 0xa,
- NULL,
- NULL
-};
-
-CONTROLLER_DEVICE_PATH mControllerDevicePathTemplate = {
- {
- HARDWARE_DEVICE_PATH,
- HW_CONTROLLER_DP,
- {
- (UINT8) (sizeof (CONTROLLER_DEVICE_PATH)),
- (UINT8) ((sizeof (CONTROLLER_DEVICE_PATH)) >> 8)
- }
- },
- 0
-};
-
-SERIAL_DEV gSerialDevTemplate = {
- SERIAL_DEV_SIGNATURE,
- NULL,
- {
- SERIAL_IO_INTERFACE_REVISION,
- SerialReset,
- SerialSetAttributes,
- SerialSetControl,
- SerialGetControl,
- SerialWrite,
- SerialRead,
- NULL
- }, // SerialIo
- {
- SERIAL_PORT_SUPPORT_CONTROL_MASK,
- SERIAL_PORT_DEFAULT_TIMEOUT,
- 0,
- 16,
- 0,
- 0,
- 0
- }, // SerialMode
- NULL, // DevicePath
- NULL, // ParentDevicePath
- {
- {
- MESSAGING_DEVICE_PATH,
- MSG_UART_DP,
- {
- (UINT8) (sizeof (UART_DEVICE_PATH)),
- (UINT8) ((sizeof (UART_DEVICE_PATH)) >> 8)
- }
- },
- 0, 0, 0, 0, 0
- }, // UartDevicePath
- 0, // BaseAddress
- FALSE, // MmioAccess
- 1, // RegisterStride
- 0, // ClockRate
- 16, // ReceiveFifoDepth
- { 0, 0 }, // Receive;
- 16, // TransmitFifoDepth
- { 0, 0 }, // Transmit;
- FALSE, // SoftwareLoopbackEnable;
- FALSE, // HardwareFlowControl;
- NULL, // *ControllerNameTable;
- FALSE, // ContainsControllerNode;
- 0, // Instance;
- NULL // *PciDeviceInfo;
-};
-
-/**
- Check the device path node whether it's the Flow Control node or not.
-
- @param[in] FlowControl The device path node to be checked.
-
- @retval TRUE It's the Flow Control node.
- @retval FALSE It's not.
-
-**/
-BOOLEAN
-IsUartFlowControlDevicePathNode (
- IN UART_FLOW_CONTROL_DEVICE_PATH *FlowControl
- )
-{
- return (BOOLEAN) (
- (DevicePathType (FlowControl) == MESSAGING_DEVICE_PATH) &&
- (DevicePathSubType (FlowControl) == MSG_VENDOR_DP) &&
- (CompareGuid (&FlowControl->Guid, &gEfiUartDevicePathGuid))
- );
-}
-
-/**
- The user Entry Point for module PciSioSerial. The user code starts with this function.
-
- @param[in] ImageHandle The firmware allocated handle for the EFI image.
- @param[in] SystemTable A pointer to the EFI System Table.
-
- @retval EFI_SUCCESS The entry point is executed successfully.
- @retval other Some error occurs when executing this entry point.
-
-**/
-EFI_STATUS
-EFIAPI
-InitializePciSioSerial (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- )
-{
- EFI_STATUS Status;
-
- //
- // Install driver model protocol(s).
- //
- Status = EfiLibInstallDriverBindingComponentName2 (
- ImageHandle,
- SystemTable,
- &gSerialControllerDriver,
- ImageHandle,
- &gPciSioSerialComponentName,
- &gPciSioSerialComponentName2
- );
- ASSERT_EFI_ERROR (Status);
-
- //
- // Initialize UART default setting in gSerialDevTempate
- //
- gSerialDevTemplate.SerialMode.BaudRate = PcdGet64 (PcdUartDefaultBaudRate);
- gSerialDevTemplate.SerialMode.DataBits = PcdGet8 (PcdUartDefaultDataBits);
- gSerialDevTemplate.SerialMode.Parity = PcdGet8 (PcdUartDefaultParity);
- gSerialDevTemplate.SerialMode.StopBits = PcdGet8 (PcdUartDefaultStopBits);
- gSerialDevTemplate.UartDevicePath.BaudRate = PcdGet64 (PcdUartDefaultBaudRate);
- gSerialDevTemplate.UartDevicePath.DataBits = PcdGet8 (PcdUartDefaultDataBits);
- gSerialDevTemplate.UartDevicePath.Parity = PcdGet8 (PcdUartDefaultParity);
- gSerialDevTemplate.UartDevicePath.StopBits = PcdGet8 (PcdUartDefaultStopBits);
- gSerialDevTemplate.ClockRate = PcdGet32 (PcdSerialClockRate);
-
- return Status;
-}
-
-/**
- Return whether the controller is a SIO serial controller.
-
- @param Controller The controller handle.
-
- @retval EFI_SUCCESS The controller is a SIO serial controller.
- @retval others The controller is not a SIO serial controller.
-**/
-EFI_STATUS
-IsSioSerialController (
- EFI_HANDLE Controller
- )
-{
- EFI_STATUS Status;
- EFI_SIO_PROTOCOL *Sio;
- EFI_DEVICE_PATH_PROTOCOL *DevicePath;
- ACPI_HID_DEVICE_PATH *Acpi;
-
- //
- // Open the IO Abstraction(s) needed to perform the supported test
- //
- Status = gBS->OpenProtocol (
- Controller,
- &gEfiSioProtocolGuid,
- (VOID **) &Sio,
- gSerialControllerDriver.DriverBindingHandle,
- Controller,
- EFI_OPEN_PROTOCOL_BY_DRIVER
- );
- if (Status == EFI_ALREADY_STARTED) {
- return EFI_SUCCESS;
- }
-
- if (!EFI_ERROR (Status)) {
- //
- // Close the I/O Abstraction(s) used to perform the supported test
- //
- gBS->CloseProtocol (
- Controller,
- &gEfiSioProtocolGuid,
- gSerialControllerDriver.DriverBindingHandle,
- Controller
- );
-
- Status = gBS->OpenProtocol (
- Controller,
- &gEfiDevicePathProtocolGuid,
- (VOID **) &DevicePath,
- gSerialControllerDriver.DriverBindingHandle,
- Controller,
- EFI_OPEN_PROTOCOL_BY_DRIVER
- );
- ASSERT (Status != EFI_ALREADY_STARTED);
-
- if (!EFI_ERROR (Status)) {
- do {
- Acpi = (ACPI_HID_DEVICE_PATH *) DevicePath;
- DevicePath = NextDevicePathNode (DevicePath);
- } while (!IsDevicePathEnd (DevicePath));
-
- if (DevicePathType (Acpi) != ACPI_DEVICE_PATH ||
- (DevicePathSubType (Acpi) != ACPI_DP && DevicePathSubType (Acpi) != ACPI_EXTENDED_DP) ||
- Acpi->HID != EISA_PNP_ID (0x501)
- ) {
- Status = EFI_UNSUPPORTED;
- }
- }
-
- //
- // Close protocol, don't use device path protocol in the Support() function
- //
- gBS->CloseProtocol (
- Controller,
- &gEfiDevicePathProtocolGuid,
- gSerialControllerDriver.DriverBindingHandle,
- Controller
- );
- }
- return Status;
-}
-
-/**
- Return whether the controller is a PCI serial controller.
-
- @param Controller The controller handle.
-
- @retval EFI_SUCCESS The controller is a PCI serial controller.
- @retval others The controller is not a PCI serial controller.
-**/
-EFI_STATUS
-IsPciSerialController (
- EFI_HANDLE Controller
- )
-{
- EFI_STATUS Status;
- EFI_PCI_IO_PROTOCOL *PciIo;
- EFI_DEVICE_PATH_PROTOCOL *DevicePath;
- PCI_TYPE00 Pci;
- PCI_SERIAL_PARAMETER *PciSerialParameter;
-
- //
- // Open the IO Abstraction(s) needed to perform the supported test
- //
- Status = gBS->OpenProtocol (
- Controller,
- &gEfiPciIoProtocolGuid,
- (VOID **) &PciIo,
- gSerialControllerDriver.DriverBindingHandle,
- Controller,
- EFI_OPEN_PROTOCOL_BY_DRIVER
- );
- if (Status == EFI_ALREADY_STARTED) {
- return EFI_SUCCESS;
- }
-
- if (!EFI_ERROR (Status)) {
- Status = PciIo->Pci.Read (PciIo, EfiPciIoWidthUint8, 0, sizeof (Pci), &Pci);
- if (!EFI_ERROR (Status)) {
- if (!IS_PCI_16550_SERIAL (&Pci)) {
- for (PciSerialParameter = (PCI_SERIAL_PARAMETER *) PcdGetPtr (PcdPciSerialParameters)
- ; PciSerialParameter->VendorId != 0xFFFF
- ; PciSerialParameter++
- ) {
- if ((Pci.Hdr.VendorId == PciSerialParameter->VendorId) &&
- (Pci.Hdr.DeviceId == PciSerialParameter->DeviceId)
- ) {
- break;
- }
- }
- if (PciSerialParameter->VendorId == 0xFFFF) {
- Status = EFI_UNSUPPORTED;
- } else {
- Status = EFI_SUCCESS;
- }
- }
- }
-
- //
- // Close the I/O Abstraction(s) used to perform the supported test
- //
- gBS->CloseProtocol (
- Controller,
- &gEfiPciIoProtocolGuid,
- gSerialControllerDriver.DriverBindingHandle,
- Controller
- );
- }
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- //
- // Open the EFI Device Path protocol needed to perform the supported test
- //
- Status = gBS->OpenProtocol (
- Controller,
- &gEfiDevicePathProtocolGuid,
- (VOID **) &DevicePath,
- gSerialControllerDriver.DriverBindingHandle,
- Controller,
- EFI_OPEN_PROTOCOL_BY_DRIVER
- );
- ASSERT (Status != EFI_ALREADY_STARTED);
-
- //
- // Close protocol, don't use device path protocol in the Support() function
- //
- gBS->CloseProtocol (
- Controller,
- &gEfiDevicePathProtocolGuid,
- gSerialControllerDriver.DriverBindingHandle,
- Controller
- );
-
- return Status;
-}
-
-/**
- Check to see if this driver supports the given controller
-
- @param This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
- @param Controller The handle of the controller to test.
- @param RemainingDevicePath A pointer to the remaining portion of a device path.
-
- @return EFI_SUCCESS This driver can support the given controller
-
-**/
-EFI_STATUS
-EFIAPI
-SerialControllerDriverSupported (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE Controller,
- IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
- )
-
-{
- EFI_STATUS Status;
- UART_DEVICE_PATH *Uart;
- UART_FLOW_CONTROL_DEVICE_PATH *FlowControl;
-
- //
- // Test RemainingDevicePath
- //
- if ((RemainingDevicePath != NULL) && !IsDevicePathEnd (RemainingDevicePath)) {
- Status = EFI_UNSUPPORTED;
-
- Uart = SkipControllerDevicePathNode (RemainingDevicePath, NULL, NULL);
- if (DevicePathType (Uart) != MESSAGING_DEVICE_PATH ||
- DevicePathSubType (Uart) != MSG_UART_DP ||
- DevicePathNodeLength (Uart) != sizeof (UART_DEVICE_PATH)
- ) {
- return EFI_UNSUPPORTED;
- }
-
- //
- // Do a rough check because Clock Rate is unknown until DriverBindingStart()
- //
- if (!VerifyUartParameters (0, Uart->BaudRate, Uart->DataBits, Uart->Parity, Uart->StopBits, NULL, NULL)) {
- return EFI_UNSUPPORTED;
- }
-
- FlowControl = (UART_FLOW_CONTROL_DEVICE_PATH *) NextDevicePathNode (Uart);
- if (IsUartFlowControlDevicePathNode (FlowControl)) {
- //
- // If the second node is Flow Control Node,
- // return error when it request other than hardware flow control.
- //
- if ((ReadUnaligned32 (&FlowControl->FlowControlMap) & ~UART_FLOW_CONTROL_HARDWARE) != 0) {
- return EFI_UNSUPPORTED;
- }
- }
- }
-
- Status = IsSioSerialController (Controller);
- if (EFI_ERROR (Status)) {
- Status = IsPciSerialController (Controller);
- }
- return Status;
-}
-
-/**
- Create the child serial device instance.
-
- @param Controller The parent controller handle.
- @param Uart Pointer to the UART device path node in RemainingDevicePath,
- or NULL if RemainingDevicePath is NULL.
- @param ParentDevicePath Pointer to the parent device path.
- @param CreateControllerNode TRUE to create the controller node.
- @param Instance Instance number of the serial device.
- The value will be set to the controller node
- if CreateControllerNode is TRUE.
- @param ParentIo A union type pointer to either Sio or PciIo.
- @param PciSerialParameter The PCI serial parameter to be used by current serial device.
- NULL for SIO serial device.
- @param PciDeviceInfo The PCI device info for the current serial device.
- NULL for SIO serial device.
-
- @retval EFI_SUCCESS The serial device was created successfully.
- @retval others The serial device wasn't created.
-**/
-EFI_STATUS
-CreateSerialDevice (
- IN EFI_HANDLE Controller,
- IN UART_DEVICE_PATH *Uart,
- IN EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath,
- IN BOOLEAN CreateControllerNode,
- IN UINT32 Instance,
- IN PARENT_IO_PROTOCOL_PTR ParentIo,
- IN PCI_SERIAL_PARAMETER *PciSerialParameter, OPTIONAL
- IN PCI_DEVICE_INFO *PciDeviceInfo OPTIONAL
- )
-{
- EFI_STATUS Status;
- SERIAL_DEV *SerialDevice;
- UINT8 BarIndex;
- UINT64 Offset;
- UART_FLOW_CONTROL_DEVICE_PATH *FlowControl;
- UINT32 FlowControlMap;
- ACPI_RESOURCE_HEADER_PTR Resources;
- EFI_ACPI_IO_PORT_DESCRIPTOR *Io;
- EFI_ACPI_FIXED_LOCATION_IO_PORT_DESCRIPTOR *FixedIo;
- EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *AddressSpace;
- EFI_DEVICE_PATH_PROTOCOL *TempDevicePath;
-
- BarIndex = 0;
- Offset = 0;
- FlowControl = NULL;
- FlowControlMap = 0;
-
- //
- // Initialize the serial device instance
- //
- SerialDevice = AllocateCopyPool (sizeof (SERIAL_DEV), &gSerialDevTemplate);
- ASSERT (SerialDevice != NULL);
-
- SerialDevice->SerialIo.Mode = &(SerialDevice->SerialMode);
- SerialDevice->ParentDevicePath = ParentDevicePath;
- SerialDevice->PciDeviceInfo = PciDeviceInfo;
- SerialDevice->Instance = Instance;
-
- if (Uart != NULL) {
- CopyMem (&SerialDevice->UartDevicePath, Uart, sizeof (UART_DEVICE_PATH));
- FlowControl = (UART_FLOW_CONTROL_DEVICE_PATH *) NextDevicePathNode (Uart);
- if (IsUartFlowControlDevicePathNode (FlowControl)) {
- FlowControlMap = ReadUnaligned32 (&FlowControl->FlowControlMap);
- } else {
- FlowControl = NULL;
- }
- }
-
- //
- // For PCI serial device, use the information from PCD
- //
- if (PciSerialParameter != NULL) {
- BarIndex = (PciSerialParameter->BarIndex == PCI_BAR_ALL) ? 0 : PciSerialParameter->BarIndex;
- Offset = PciSerialParameter->Offset;
- if (PciSerialParameter->RegisterStride != 0) {
- SerialDevice->RegisterStride = PciSerialParameter->RegisterStride;
- }
- if (PciSerialParameter->ClockRate != 0) {
- SerialDevice->ClockRate = PciSerialParameter->ClockRate;
- }
- if (PciSerialParameter->ReceiveFifoDepth != 0) {
- SerialDevice->ReceiveFifoDepth = PciSerialParameter->ReceiveFifoDepth;
- }
- if (PciSerialParameter->TransmitFifoDepth != 0) {
- SerialDevice->TransmitFifoDepth = PciSerialParameter->TransmitFifoDepth;
- }
- }
-
- //
- // Pass NULL ActualBaudRate to VerifyUartParameters to disallow baudrate degrade.
- // DriverBindingStart() shouldn't create a handle with different UART device path.
- //
- if (!VerifyUartParameters (SerialDevice->ClockRate, SerialDevice->UartDevicePath.BaudRate, SerialDevice->UartDevicePath.DataBits,
- SerialDevice->UartDevicePath.Parity, SerialDevice->UartDevicePath.StopBits, NULL, NULL
- )) {
- Status = EFI_INVALID_PARAMETER;
- goto CreateError;
- }
-
- if (PciSerialParameter == NULL) {
- Status = ParentIo.Sio->GetResources (ParentIo.Sio, &Resources);
- } else {
- Status = ParentIo.PciIo->GetBarAttributes (ParentIo.PciIo, BarIndex, NULL, (VOID **) &Resources);
- }
-
- if (!EFI_ERROR (Status)) {
- //
- // Get the base address information from ACPI resource descriptor.
- // ACPI_IO_PORT_DESCRIPTOR and ACPI_FIXED_LOCATION_IO_PORT_DESCRIPTOR are returned from Sio;
- // ACPI_ADDRESS_SPACE_DESCRIPTOR is returned from PciIo.
- //
- while ((Resources.SmallHeader->Byte != ACPI_END_TAG_DESCRIPTOR) && (SerialDevice->BaseAddress == 0)) {
- switch (Resources.SmallHeader->Byte) {
- case ACPI_IO_PORT_DESCRIPTOR:
- Io = (EFI_ACPI_IO_PORT_DESCRIPTOR *) Resources.SmallHeader;
- if (Io->Length != 0) {
- SerialDevice->BaseAddress = Io->BaseAddressMin;
- }
- break;
-
- case ACPI_FIXED_LOCATION_IO_PORT_DESCRIPTOR:
- FixedIo = (EFI_ACPI_FIXED_LOCATION_IO_PORT_DESCRIPTOR *) Resources.SmallHeader;
- if (FixedIo->Length != 0) {
- SerialDevice->BaseAddress = FixedIo->BaseAddress;
- }
- break;
-
- case ACPI_ADDRESS_SPACE_DESCRIPTOR:
- AddressSpace = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *) Resources.SmallHeader;
- if (AddressSpace->AddrLen != 0) {
- if (AddressSpace->ResType == ACPI_ADDRESS_SPACE_TYPE_MEM) {
- SerialDevice->MmioAccess = TRUE;
- }
- SerialDevice->BaseAddress = AddressSpace->AddrRangeMin + Offset;
- }
- break;
- }
-
- if (Resources.SmallHeader->Bits.Type == 0) {
- Resources.SmallHeader = (ACPI_SMALL_RESOURCE_HEADER *) ((UINT8 *) Resources.SmallHeader
- + Resources.SmallHeader->Bits.Length
- + sizeof (*Resources.SmallHeader));
- } else {
- Resources.LargeHeader = (ACPI_LARGE_RESOURCE_HEADER *) ((UINT8 *) Resources.LargeHeader
- + Resources.LargeHeader->Length
- + sizeof (*Resources.LargeHeader));
- }
- }
- }
-
- if (SerialDevice->BaseAddress == 0) {
- Status = EFI_INVALID_PARAMETER;
- goto CreateError;
- }
-
- SerialDevice->HardwareFlowControl = (BOOLEAN) (FlowControlMap == UART_FLOW_CONTROL_HARDWARE);
-
- //
- // Report status code the serial present
- //
- REPORT_STATUS_CODE_WITH_DEVICE_PATH (
- EFI_PROGRESS_CODE,
- EFI_P_PC_PRESENCE_DETECT | EFI_PERIPHERAL_SERIAL_PORT,
- SerialDevice->ParentDevicePath
- );
-
- if (!SerialPresent (SerialDevice)) {
- Status = EFI_DEVICE_ERROR;
- REPORT_STATUS_CODE_WITH_DEVICE_PATH (
- EFI_ERROR_CODE,
- EFI_P_EC_NOT_DETECTED | EFI_PERIPHERAL_SERIAL_PORT,
- SerialDevice->ParentDevicePath
- );
- goto CreateError;
- }
-
- //
- // 1. Append Controller device path node.
- //
- if (CreateControllerNode) {
- mControllerDevicePathTemplate.ControllerNumber = SerialDevice->Instance;
- SerialDevice->DevicePath = AppendDevicePathNode (
- SerialDevice->ParentDevicePath,
- (EFI_DEVICE_PATH_PROTOCOL *) &mControllerDevicePathTemplate
- );
- SerialDevice->ContainsControllerNode = TRUE;
- }
-
- //
- // 2. Append UART device path node.
- // The Uart setings are zero here.
- // SetAttribute() will update them to match the default setings.
- //
- TempDevicePath = SerialDevice->DevicePath;
- if (TempDevicePath != NULL) {
- SerialDevice->DevicePath = AppendDevicePathNode (
- TempDevicePath,
- (EFI_DEVICE_PATH_PROTOCOL *) &SerialDevice->UartDevicePath
- );
- FreePool (TempDevicePath);
- } else {
- SerialDevice->DevicePath = AppendDevicePathNode (
- SerialDevice->ParentDevicePath,
- (EFI_DEVICE_PATH_PROTOCOL *) &SerialDevice->UartDevicePath
- );
- }
- //
- // 3. Append the Flow Control device path node.
- // Only produce the Flow Control node when remaining device path has it
- //
- if (FlowControl != NULL) {
- TempDevicePath = SerialDevice->DevicePath;
- if (TempDevicePath != NULL) {
- SerialDevice->DevicePath = AppendDevicePathNode (
- TempDevicePath,
- (EFI_DEVICE_PATH_PROTOCOL *) FlowControl
- );
- FreePool (TempDevicePath);
- }
- }
- ASSERT (SerialDevice->DevicePath != NULL);
-
- //
- // Fill in Serial I/O Mode structure based on either the RemainingDevicePath or defaults.
- //
- SerialDevice->SerialMode.BaudRate = SerialDevice->UartDevicePath.BaudRate;
- SerialDevice->SerialMode.DataBits = SerialDevice->UartDevicePath.DataBits;
- SerialDevice->SerialMode.Parity = SerialDevice->UartDevicePath.Parity;
- SerialDevice->SerialMode.StopBits = SerialDevice->UartDevicePath.StopBits;
-
- //
- // Issue a reset to initialize the COM port
- //
- Status = SerialDevice->SerialIo.Reset (&SerialDevice->SerialIo);
- if (EFI_ERROR (Status)) {
- REPORT_STATUS_CODE_WITH_DEVICE_PATH (
- EFI_ERROR_CODE,
- EFI_P_EC_CONTROLLER_ERROR | EFI_PERIPHERAL_SERIAL_PORT,
- SerialDevice->DevicePath
- );
- goto CreateError;
- }
-
- AddName (SerialDevice, Instance);
- //
- // Install protocol interfaces for the serial device.
- //
- Status = gBS->InstallMultipleProtocolInterfaces (
- &SerialDevice->Handle,
- &gEfiDevicePathProtocolGuid, SerialDevice->DevicePath,
- &gEfiSerialIoProtocolGuid, &SerialDevice->SerialIo,
- NULL
- );
- if (EFI_ERROR (Status)) {
- goto CreateError;
- }
- //
- // Open For Child Device
- //
- Status = gBS->OpenProtocol (
- Controller,
- PciSerialParameter != NULL ? &gEfiPciIoProtocolGuid : &gEfiSioProtocolGuid,
- (VOID **) &ParentIo,
- gSerialControllerDriver.DriverBindingHandle,
- SerialDevice->Handle,
- EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
- );
-
- if (EFI_ERROR (Status)) {
- gBS->UninstallMultipleProtocolInterfaces (
- &SerialDevice->Handle,
- &gEfiDevicePathProtocolGuid, SerialDevice->DevicePath,
- &gEfiSerialIoProtocolGuid, &SerialDevice->SerialIo,
- NULL
- );
- }
-
-CreateError:
- if (EFI_ERROR (Status)) {
- if (SerialDevice->DevicePath != NULL) {
- FreePool (SerialDevice->DevicePath);
- }
- if (SerialDevice->ControllerNameTable != NULL) {
- FreeUnicodeStringTable (SerialDevice->ControllerNameTable);
- }
- FreePool (SerialDevice);
- }
- return Status;
-}
-
-/**
- Returns an array of pointers containing all the child serial device pointers.
-
- @param Controller The parent controller handle.
- @param IoProtocolGuid The protocol GUID, either equals to gEfiSioProtocolGuid
- or equals to gEfiPciIoProtocolGuid.
- @param Count Count of the serial devices.
-
- @return An array of pointers containing all the child serial device pointers.
-**/
-SERIAL_DEV **
-GetChildSerialDevices (
- IN EFI_HANDLE Controller,
- IN EFI_GUID *IoProtocolGuid,
- OUT UINTN *Count
- )
-{
- EFI_STATUS Status;
- UINTN Index;
- EFI_OPEN_PROTOCOL_INFORMATION_ENTRY *OpenInfoBuffer;
- UINTN EntryCount;
- SERIAL_DEV **SerialDevices;
- EFI_SERIAL_IO_PROTOCOL *SerialIo;
- BOOLEAN OpenByDriver;
-
- *Count = 0;
- //
- // If the SerialIo instance specified by RemainingDevicePath is already created,
- // update the attributes/control.
- //
- Status = gBS->OpenProtocolInformation (
- Controller,
- IoProtocolGuid,
- &OpenInfoBuffer,
- &EntryCount
- );
- if (EFI_ERROR (Status)) {
- return NULL;
- }
-
- SerialDevices = AllocatePool (EntryCount * sizeof (SERIAL_DEV *));
- ASSERT (SerialDevices != NULL);
-
- *Count = 0;
- OpenByDriver = FALSE;
- for (Index = 0; Index < EntryCount; Index++) {
- if ((OpenInfoBuffer[Index].Attributes & EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER) != 0) {
- Status = gBS->OpenProtocol (
- OpenInfoBuffer[Index].ControllerHandle,
- &gEfiSerialIoProtocolGuid,
- (VOID **) &SerialIo,
- gSerialControllerDriver.DriverBindingHandle,
- Controller,
- EFI_OPEN_PROTOCOL_GET_PROTOCOL
- );
- if (!EFI_ERROR (Status)) {
- SerialDevices[(*Count)++] = SERIAL_DEV_FROM_THIS (SerialIo);
- }
- }
-
-
- if ((OpenInfoBuffer[Index].Attributes & EFI_OPEN_PROTOCOL_BY_DRIVER) != 0) {
- ASSERT (OpenInfoBuffer[Index].AgentHandle == gSerialControllerDriver.DriverBindingHandle);
- OpenByDriver = TRUE;
- }
- }
- if (OpenInfoBuffer != NULL) {
- FreePool (OpenInfoBuffer);
- }
-
- ASSERT ((*Count == 0) || (OpenByDriver));
-
- return SerialDevices;
-}
-
-/**
- Start to management the controller passed in
-
- @param This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
- @param Controller The handle of the controller to test.
- @param RemainingDevicePath A pointer to the remaining portion of a device path.
-
- @return EFI_SUCCESS Driver is started successfully
-**/
-EFI_STATUS
-EFIAPI
-SerialControllerDriverStart (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE Controller,
- IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
- )
-{
- EFI_STATUS Status;
- UINTN Index;
- EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
- EFI_DEVICE_PATH_PROTOCOL *Node;
- EFI_SERIAL_IO_PROTOCOL *SerialIo;
- UINT32 ControllerNumber;
- UART_DEVICE_PATH *Uart;
- UART_FLOW_CONTROL_DEVICE_PATH *FlowControl;
- UINT32 Control;
- PARENT_IO_PROTOCOL_PTR ParentIo;
- ACPI_HID_DEVICE_PATH *Acpi;
- EFI_GUID *IoProtocolGuid;
- PCI_SERIAL_PARAMETER *PciSerialParameter;
- PCI_SERIAL_PARAMETER DefaultPciSerialParameter;
- PCI_TYPE00 Pci;
- UINT32 PciSerialCount;
- SERIAL_DEV **SerialDevices;
- UINTN SerialDeviceCount;
- PCI_DEVICE_INFO *PciDeviceInfo;
- UINT64 Supports;
- BOOLEAN ContainsControllerNode;
-
- //
- // Get the Parent Device Path
- //
- Status = gBS->OpenProtocol (
- Controller,
- &gEfiDevicePathProtocolGuid,
- (VOID **) &ParentDevicePath,
- This->DriverBindingHandle,
- Controller,
- EFI_OPEN_PROTOCOL_BY_DRIVER
- );
- if (EFI_ERROR (Status) && Status != EFI_ALREADY_STARTED) {
- return Status;
- }
- //
- // Report status code enable the serial
- //
- REPORT_STATUS_CODE_WITH_DEVICE_PATH (
- EFI_PROGRESS_CODE,
- EFI_P_PC_ENABLE | EFI_PERIPHERAL_SERIAL_PORT,
- ParentDevicePath
- );
-
- //
- // Grab the IO abstraction we need to get any work done
- //
- IoProtocolGuid = &gEfiSioProtocolGuid;
- Status = gBS->OpenProtocol (
- Controller,
- IoProtocolGuid,
- (VOID **) &ParentIo,
- This->DriverBindingHandle,
- Controller,
- EFI_OPEN_PROTOCOL_BY_DRIVER
- );
- if (EFI_ERROR (Status) && Status != EFI_ALREADY_STARTED) {
- IoProtocolGuid = &gEfiPciIoProtocolGuid;
- Status = gBS->OpenProtocol (
- Controller,
- IoProtocolGuid,
- (VOID **) &ParentIo,
- This->DriverBindingHandle,
- Controller,
- EFI_OPEN_PROTOCOL_BY_DRIVER
- );
- }
- ASSERT (!EFI_ERROR (Status) || Status == EFI_ALREADY_STARTED);
-
- //
- // Do nothing for END device path node
- //
- if ((RemainingDevicePath != NULL) && IsDevicePathEnd (RemainingDevicePath)) {
- return EFI_SUCCESS;
- }
-
- ControllerNumber = 0;
- ContainsControllerNode = FALSE;
- SerialDevices = GetChildSerialDevices (Controller, IoProtocolGuid, &SerialDeviceCount);
- //
- // If the SerialIo instance specified by RemainingDevicePath is already created,
- // update the attributes/control.
- //
- if ((SerialDeviceCount != 0) && (RemainingDevicePath != NULL)) {
- Uart = (UART_DEVICE_PATH *) SkipControllerDevicePathNode (RemainingDevicePath, &ContainsControllerNode, &ControllerNumber);
- for (Index = 0; Index < SerialDeviceCount; Index++) {
- ASSERT ((SerialDevices != NULL) && (SerialDevices[Index] != NULL));
- if ((!SerialDevices[Index]->ContainsControllerNode && !ContainsControllerNode) ||
- (SerialDevices[Index]->ContainsControllerNode && ContainsControllerNode && SerialDevices[Index]->Instance == ControllerNumber)
- ) {
- SerialIo = &SerialDevices[Index]->SerialIo;
- Status = EFI_INVALID_PARAMETER;
- //
- // Pass NULL ActualBaudRate to VerifyUartParameters to disallow baudrate degrade.
- // DriverBindingStart() shouldn't create a handle with different UART device path.
- //
- if (VerifyUartParameters (SerialDevices[Index]->ClockRate, Uart->BaudRate, Uart->DataBits,
- (EFI_PARITY_TYPE) Uart->Parity, (EFI_STOP_BITS_TYPE) Uart->StopBits, NULL, NULL)) {
- Status = SerialIo->SetAttributes (
- SerialIo,
- Uart->BaudRate,
- SerialIo->Mode->ReceiveFifoDepth,
- SerialIo->Mode->Timeout,
- (EFI_PARITY_TYPE) Uart->Parity,
- Uart->DataBits,
- (EFI_STOP_BITS_TYPE) Uart->StopBits
- );
- }
- FlowControl = (UART_FLOW_CONTROL_DEVICE_PATH *) NextDevicePathNode (Uart);
- if (!EFI_ERROR (Status) && IsUartFlowControlDevicePathNode (FlowControl)) {
- Status = SerialIo->GetControl (SerialIo, &Control);
- if (!EFI_ERROR (Status)) {
- if (ReadUnaligned32 (&FlowControl->FlowControlMap) == UART_FLOW_CONTROL_HARDWARE) {
- Control |= EFI_SERIAL_HARDWARE_FLOW_CONTROL_ENABLE;
- } else {
- Control &= ~EFI_SERIAL_HARDWARE_FLOW_CONTROL_ENABLE;
- }
- //
- // Clear the bits that are not allowed to pass to SetControl
- //
- Control &= (EFI_SERIAL_REQUEST_TO_SEND | EFI_SERIAL_DATA_TERMINAL_READY |
- EFI_SERIAL_HARDWARE_LOOPBACK_ENABLE | EFI_SERIAL_SOFTWARE_LOOPBACK_ENABLE |
- EFI_SERIAL_HARDWARE_FLOW_CONTROL_ENABLE);
- Status = SerialIo->SetControl (SerialIo, Control);
- }
- }
- break;
- }
- }
- if (Index != SerialDeviceCount) {
- //
- // Directly return if the SerialIo instance specified by RemainingDevicePath is found and updated.
- // Otherwise continue to create the instance specified by RemainingDevicePath.
- //
- if (SerialDevices != NULL) {
- FreePool (SerialDevices);
- }
- return Status;
- }
- }
-
- if (RemainingDevicePath != NULL) {
- Uart = (UART_DEVICE_PATH *) SkipControllerDevicePathNode (RemainingDevicePath, &ContainsControllerNode, &ControllerNumber);
- } else {
- Uart = NULL;
- }
-
- PciDeviceInfo = NULL;
- if (IoProtocolGuid == &gEfiSioProtocolGuid) {
- Status = EFI_NOT_FOUND;
- if (RemainingDevicePath == NULL || !ContainsControllerNode) {
- Node = ParentDevicePath;
- do {
- Acpi = (ACPI_HID_DEVICE_PATH *) Node;
- Node = NextDevicePathNode (Node);
- } while (!IsDevicePathEnd (Node));
- Status = CreateSerialDevice (Controller, Uart, ParentDevicePath, FALSE, Acpi->UID, ParentIo, NULL, NULL);
- DEBUG ((EFI_D_INFO, "PciSioSerial: Create SIO child serial device - %r\n", Status));
- }
- } else {
- Status = ParentIo.PciIo->Pci.Read (ParentIo.PciIo, EfiPciIoWidthUint8, 0, sizeof (Pci), &Pci);
- if (!EFI_ERROR (Status)) {
- //
- // PcdPciSerialParameters takes the higher priority.
- //
- PciSerialCount = 0;
- for (PciSerialParameter = PcdGetPtr (PcdPciSerialParameters); PciSerialParameter->VendorId != 0xFFFF; PciSerialParameter++) {
- if ((PciSerialParameter->VendorId == Pci.Hdr.VendorId) &&
- (PciSerialParameter->DeviceId == Pci.Hdr.DeviceId)
- ) {
- PciSerialCount++;
- }
- }
-
- if (SerialDeviceCount == 0) {
- //
- // Enable the IO & MEM decoding when creating the first child.
- // Restore the PCI attributes when all children is destroyed (PciDeviceInfo->ChildCount == 0).
- //
- PciDeviceInfo = AllocatePool (sizeof (PCI_DEVICE_INFO));
- ASSERT (PciDeviceInfo != NULL);
- PciDeviceInfo->ChildCount = 0;
- PciDeviceInfo->PciIo = ParentIo.PciIo;
- Status = ParentIo.PciIo->Attributes (
- ParentIo.PciIo,
- EfiPciIoAttributeOperationGet,
- 0,
- &PciDeviceInfo->PciAttributes
- );
-
- if (!EFI_ERROR (Status)) {
- Status = ParentIo.PciIo->Attributes (
- ParentIo.PciIo,
- EfiPciIoAttributeOperationSupported,
- 0,
- &Supports
- );
- if (!EFI_ERROR (Status)) {
- Supports &= (UINT64)(EFI_PCI_IO_ATTRIBUTE_IO | EFI_PCI_IO_ATTRIBUTE_MEMORY);
- Status = ParentIo.PciIo->Attributes (
- ParentIo.PciIo,
- EfiPciIoAttributeOperationEnable,
- Supports,
- NULL
- );
- }
- }
- } else {
- //
- // Re-use the PciDeviceInfo stored in existing children.
- //
- ASSERT ((SerialDevices != NULL) && (SerialDevices[0] != NULL));
- PciDeviceInfo = SerialDevices[0]->PciDeviceInfo;
- ASSERT (PciDeviceInfo != NULL);
- }
-
- Status = EFI_NOT_FOUND;
- if (PciSerialCount <= 1) {
- //
- // PCI serial device contains only one UART
- //
- if (RemainingDevicePath == NULL || !ContainsControllerNode) {
- //
- // This PCI serial device is matched by class code in Supported()
- //
- if (PciSerialCount == 0) {
- DefaultPciSerialParameter.VendorId = Pci.Hdr.VendorId;
- DefaultPciSerialParameter.DeviceId = Pci.Hdr.DeviceId;
- DefaultPciSerialParameter.BarIndex = 0;
- DefaultPciSerialParameter.Offset = 0;
- DefaultPciSerialParameter.RegisterStride = 0;
- DefaultPciSerialParameter.ClockRate = 0;
- PciSerialParameter = &DefaultPciSerialParameter;
- } else if (PciSerialCount == 1) {
- PciSerialParameter = PcdGetPtr (PcdPciSerialParameters);
- }
-
- Status = CreateSerialDevice (Controller, Uart, ParentDevicePath, FALSE, 0, ParentIo, PciSerialParameter, PciDeviceInfo);
- DEBUG ((EFI_D_INFO, "PciSioSerial: Create PCI child serial device (single) - %r\n", Status));
- if (!EFI_ERROR (Status)) {
- PciDeviceInfo->ChildCount++;
- }
- }
- } else {
- //
- // PCI serial device contains multiple UARTs
- //
- if (RemainingDevicePath == NULL || ContainsControllerNode) {
- PciSerialCount = 0;
- for (PciSerialParameter = PcdGetPtr (PcdPciSerialParameters); PciSerialParameter->VendorId != 0xFFFF; PciSerialParameter++) {
- if ((PciSerialParameter->VendorId == Pci.Hdr.VendorId) &&
- (PciSerialParameter->DeviceId == Pci.Hdr.DeviceId) &&
- ((RemainingDevicePath == NULL) || (ControllerNumber == PciSerialCount))
- ) {
- //
- // Create controller node when PCI serial device contains multiple UARTs
- //
- Status = CreateSerialDevice (Controller, Uart, ParentDevicePath, TRUE, PciSerialCount, ParentIo, PciSerialParameter, PciDeviceInfo);
- PciSerialCount++;
- DEBUG ((EFI_D_INFO, "PciSioSerial: Create PCI child serial device (multiple) - %r\n", Status));
- if (!EFI_ERROR (Status)) {
- PciDeviceInfo->ChildCount++;
- }
- }
- }
- }
- }
- }
- }
-
- if (SerialDevices != NULL) {
- FreePool (SerialDevices);
- }
-
- //
- // For multiple PCI serial devices, set Status to SUCCESS if one child is created successfully
- //
- if ((PciDeviceInfo != NULL) && (PciDeviceInfo->ChildCount != 0)) {
- Status = EFI_SUCCESS;
- }
-
- if (EFI_ERROR (Status) && (SerialDeviceCount == 0)) {
- if (PciDeviceInfo != NULL) {
- Status = ParentIo.PciIo->Attributes (
- ParentIo.PciIo,
- EfiPciIoAttributeOperationSet,
- PciDeviceInfo->PciAttributes,
- NULL
- );
- ASSERT_EFI_ERROR (Status);
- FreePool (PciDeviceInfo);
- }
- gBS->CloseProtocol (
- Controller,
- &gEfiDevicePathProtocolGuid,
- This->DriverBindingHandle,
- Controller
- );
- gBS->CloseProtocol (
- Controller,
- IoProtocolGuid,
- This->DriverBindingHandle,
- Controller
- );
- }
-
- return Status;
-}
-
-/**
- Disconnect this driver with the controller, uninstall related protocol instance
-
- @param This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
- @param Controller The handle of the controller to test.
- @param NumberOfChildren Number of child device.
- @param ChildHandleBuffer A pointer to the remaining portion of a device path.
-
- @retval EFI_SUCCESS Operation successfully
- @retval EFI_DEVICE_ERROR Cannot stop the driver successfully
-
-**/
-EFI_STATUS
-EFIAPI
-SerialControllerDriverStop (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE Controller,
- IN UINTN NumberOfChildren,
- IN EFI_HANDLE *ChildHandleBuffer
- )
-
-{
- EFI_STATUS Status;
- UINTN Index;
- BOOLEAN AllChildrenStopped;
- EFI_SERIAL_IO_PROTOCOL *SerialIo;
- SERIAL_DEV *SerialDevice;
- VOID *IoProtocol;
- EFI_DEVICE_PATH_PROTOCOL *DevicePath;
- PCI_DEVICE_INFO *PciDeviceInfo;
-
- PciDeviceInfo = NULL;
-
- Status = gBS->HandleProtocol (
- Controller,
- &gEfiDevicePathProtocolGuid,
- (VOID **) &DevicePath
- );
-
- //
- // Report the status code disable the serial
- //
- REPORT_STATUS_CODE_WITH_DEVICE_PATH (
- EFI_PROGRESS_CODE,
- EFI_P_PC_DISABLE | EFI_PERIPHERAL_SERIAL_PORT,
- DevicePath
- );
-
- if (NumberOfChildren == 0) {
- //
- // Close the bus driver
- //
- Status = gBS->OpenProtocol (
- Controller,
- &gEfiPciIoProtocolGuid,
- &IoProtocol,
- This->DriverBindingHandle,
- Controller,
- EFI_OPEN_PROTOCOL_TEST_PROTOCOL
- );
- gBS->CloseProtocol (
- Controller,
- !EFI_ERROR (Status) ? &gEfiPciIoProtocolGuid : &gEfiSioProtocolGuid,
- This->DriverBindingHandle,
- Controller
- );
-
- gBS->CloseProtocol (
- Controller,
- &gEfiDevicePathProtocolGuid,
- This->DriverBindingHandle,
- Controller
- );
- return EFI_SUCCESS;
- }
-
- AllChildrenStopped = TRUE;
-
- for (Index = 0; Index < NumberOfChildren; Index++) {
-
- Status = gBS->OpenProtocol (
- ChildHandleBuffer[Index],
- &gEfiSerialIoProtocolGuid,
- (VOID **) &SerialIo,
- This->DriverBindingHandle,
- Controller,
- EFI_OPEN_PROTOCOL_GET_PROTOCOL
- );
- if (!EFI_ERROR (Status)) {
-
- SerialDevice = SERIAL_DEV_FROM_THIS (SerialIo);
- ASSERT ((PciDeviceInfo == NULL) || (PciDeviceInfo == SerialDevice->PciDeviceInfo));
- PciDeviceInfo = SerialDevice->PciDeviceInfo;
-
- Status = gBS->CloseProtocol (
- Controller,
- PciDeviceInfo != NULL ? &gEfiPciIoProtocolGuid : &gEfiSioProtocolGuid,
- This->DriverBindingHandle,
- ChildHandleBuffer[Index]
- );
-
- Status = gBS->UninstallMultipleProtocolInterfaces (
- ChildHandleBuffer[Index],
- &gEfiDevicePathProtocolGuid, SerialDevice->DevicePath,
- &gEfiSerialIoProtocolGuid, &SerialDevice->SerialIo,
- NULL
- );
- if (EFI_ERROR (Status)) {
- gBS->OpenProtocol (
- Controller,
- PciDeviceInfo != NULL ? &gEfiPciIoProtocolGuid : &gEfiSioProtocolGuid,
- &IoProtocol,
- This->DriverBindingHandle,
- ChildHandleBuffer[Index],
- EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
- );
- } else {
- FreePool (SerialDevice->DevicePath);
- FreeUnicodeStringTable (SerialDevice->ControllerNameTable);
- FreePool (SerialDevice);
-
- if (PciDeviceInfo != NULL) {
- ASSERT (PciDeviceInfo->ChildCount != 0);
- PciDeviceInfo->ChildCount--;
- }
- }
- }
-
- if (EFI_ERROR (Status)) {
- AllChildrenStopped = FALSE;
- }
- }
-
- if (!AllChildrenStopped) {
- return EFI_DEVICE_ERROR;
- } else {
- //
- // If all children are destroyed, restore the PCI attributes.
- //
- if ((PciDeviceInfo != NULL) && (PciDeviceInfo->ChildCount == 0)) {
- ASSERT (PciDeviceInfo->PciIo != NULL);
- Status = PciDeviceInfo->PciIo->Attributes (
- PciDeviceInfo->PciIo,
- EfiPciIoAttributeOperationSet,
- PciDeviceInfo->PciAttributes,
- NULL
- );
- ASSERT_EFI_ERROR (Status);
- FreePool (PciDeviceInfo);
- }
- return EFI_SUCCESS;
- }
-}
diff --git a/CorebootModulePkg/PciSioSerialDxe/Serial.h b/CorebootModulePkg/PciSioSerialDxe/Serial.h
deleted file mode 100644
index 239c944af2..0000000000
--- a/CorebootModulePkg/PciSioSerialDxe/Serial.h
+++ /dev/null
@@ -1,789 +0,0 @@
-/** @file
- Header file for PciSioSerial Driver
-
-Copyright (c) 2006 - 2015, 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.
-
-**/
-
-#ifndef _SERIAL_H_
-#define _SERIAL_H_
-
-
-#include <Uefi.h>
-
-#include <IndustryStandard/Pci.h>
-
-#include <Protocol/SuperIo.h>
-#include <Protocol/PciIo.h>
-#include <Protocol/SerialIo.h>
-#include <Protocol/DevicePath.h>
-
-#include <Library/DebugLib.h>
-#include <Library/UefiDriverEntryPoint.h>
-#include <Library/UefiLib.h>
-#include <Library/DevicePathLib.h>
-#include <Library/BaseMemoryLib.h>
-#include <Library/MemoryAllocationLib.h>
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/ReportStatusCodeLib.h>
-#include <Library/PcdLib.h>
-#include <Library/IoLib.h>
-#include <Library/PrintLib.h>
-
-//
-// Driver Binding Externs
-//
-extern EFI_DRIVER_BINDING_PROTOCOL gSerialControllerDriver;
-extern EFI_COMPONENT_NAME_PROTOCOL gPciSioSerialComponentName;
-extern EFI_COMPONENT_NAME2_PROTOCOL gPciSioSerialComponentName2;
-
-#define SIO_SERIAL_PORT_NAME L"SIO Serial Port #%d"
-#define PCI_SERIAL_PORT_NAME L"PCI Serial Port #%d"
-#define SERIAL_PORT_NAME_LEN (sizeof (SIO_SERIAL_PORT_NAME) / sizeof (CHAR16) + MAXIMUM_VALUE_CHARACTERS)
-
-//
-// Internal Data Structures
-//
-#define TIMEOUT_STALL_INTERVAL 10
-
-#pragma pack(1)
-///
-/// PcdPciSerialParameters contains zero or more instances of the below structure.
-/// If a PCI device contains multiple UARTs, PcdPciSerialParameters needs to contain
-/// two instances of the below structure, with the VendorId and DeviceId equals to the
-/// device ID and vendor ID of the device. If the PCI device uses the first two BARs
-/// to support multiple UARTs, BarIndex of first instance equals to 0 and BarIndex of
-/// second one equals to 1; if the PCI device uses the first BAR to support multiple
-/// UARTs, BarIndex of both instance equals to 0 and Offset of first instance equals
-/// to 0 while Offset of second one equals to some value bigger or equal to 8.
-/// For certain UART whose register needs to be accessed in DWORD aligned address,
-/// RegisterStride equals to 4.
-///
-typedef struct {
- UINT16 VendorId; ///< Vendor ID to match the PCI device. The value 0xFFFF terminates the list of entries.
- UINT16 DeviceId; ///< Device ID to match the PCI device
- UINT32 ClockRate; ///< UART clock rate. Set to 0 for default clock rate of 1843200 Hz
- UINT64 Offset; ///< The byte offset into to the BAR
- UINT8 BarIndex; ///< Which BAR to get the UART base address
- UINT8 RegisterStride; ///< UART register stride in bytes. Set to 0 for default register stride of 1 byte.
- UINT16 ReceiveFifoDepth; ///< UART receive FIFO depth in bytes. Set to 0 for a default FIFO depth of 16 bytes.
- UINT16 TransmitFifoDepth; ///< UART transmit FIFO depth in bytes. Set to 0 for a default FIFO depth of 16 bytes.
- UINT8 Reserved[2];
-} PCI_SERIAL_PARAMETER;
-#pragma pack()
-
-#define SERIAL_MAX_FIFO_SIZE 17 ///< Actual FIFO size is 16. FIFO based on circular wastes one unit.
-typedef struct {
- UINT16 Head; ///< Head pointer of the FIFO. Empty when (Head == Tail).
- UINT16 Tail; ///< Tail pointer of the FIFO. Full when ((Tail + 1) % SERIAL_MAX_FIFO_SIZE == Head).
- UINT8 Data[SERIAL_MAX_FIFO_SIZE]; ///< Store the FIFO data.
-} SERIAL_DEV_FIFO;
-
-typedef union {
- EFI_PCI_IO_PROTOCOL *PciIo;
- EFI_SIO_PROTOCOL *Sio;
-} PARENT_IO_PROTOCOL_PTR;
-
-typedef struct {
- EFI_PCI_IO_PROTOCOL *PciIo; // Pointer to parent PciIo instance.
- UINTN ChildCount; // Count of child SerialIo instance.
- UINT64 PciAttributes; // Original PCI attributes.
-} PCI_DEVICE_INFO;
-
-typedef struct {
- UINT32 Signature;
- EFI_HANDLE Handle;
- EFI_SERIAL_IO_PROTOCOL SerialIo;
- EFI_SERIAL_IO_MODE SerialMode;
- EFI_DEVICE_PATH_PROTOCOL *DevicePath;
-
- EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
- UART_DEVICE_PATH UartDevicePath;
-
- EFI_PHYSICAL_ADDRESS BaseAddress; ///< UART base address
- BOOLEAN MmioAccess; ///< TRUE for MMIO, FALSE for IO
- UINT8 RegisterStride; ///< UART Register Stride
- UINT32 ClockRate; ///< UART clock rate
-
- UINT16 ReceiveFifoDepth; ///< UART receive FIFO depth in bytes.
- SERIAL_DEV_FIFO Receive; ///< The FIFO used to store received data
-
- UINT16 TransmitFifoDepth; ///< UART transmit FIFO depth in bytes.
- SERIAL_DEV_FIFO Transmit; ///< The FIFO used to store to-transmit data
-
- BOOLEAN SoftwareLoopbackEnable;
- BOOLEAN HardwareFlowControl;
- EFI_UNICODE_STRING_TABLE *ControllerNameTable;
- BOOLEAN ContainsControllerNode; ///< TRUE if the device produced contains Controller node
- UINT32 Instance;
- PCI_DEVICE_INFO *PciDeviceInfo;
-} SERIAL_DEV;
-
-#define SERIAL_DEV_SIGNATURE SIGNATURE_32 ('s', 'e', 'r', 'd')
-#define SERIAL_DEV_FROM_THIS(a) CR (a, SERIAL_DEV, SerialIo, SERIAL_DEV_SIGNATURE)
-
-//
-// Serial Driver Defaults
-//
-#define SERIAL_PORT_DEFAULT_TIMEOUT 1000000
-#define SERIAL_PORT_SUPPORT_CONTROL_MASK (EFI_SERIAL_CLEAR_TO_SEND | \
- EFI_SERIAL_DATA_SET_READY | \
- EFI_SERIAL_RING_INDICATE | \
- EFI_SERIAL_CARRIER_DETECT | \
- EFI_SERIAL_REQUEST_TO_SEND | \
- EFI_SERIAL_DATA_TERMINAL_READY | \
- EFI_SERIAL_HARDWARE_LOOPBACK_ENABLE | \
- EFI_SERIAL_SOFTWARE_LOOPBACK_ENABLE | \
- EFI_SERIAL_HARDWARE_FLOW_CONTROL_ENABLE | \
- EFI_SERIAL_OUTPUT_BUFFER_EMPTY | \
- EFI_SERIAL_INPUT_BUFFER_EMPTY)
-
-#define SERIAL_PORT_MIN_TIMEOUT 1 // 1 uS
-#define SERIAL_PORT_MAX_TIMEOUT 100000000 // 100 seconds
-//
-// UART Registers
-//
-#define SERIAL_REGISTER_THR 0 ///< WO Transmit Holding Register
-#define SERIAL_REGISTER_RBR 0 ///< RO Receive Buffer Register
-#define SERIAL_REGISTER_DLL 0 ///< R/W Divisor Latch LSB
-#define SERIAL_REGISTER_DLM 1 ///< R/W Divisor Latch MSB
-#define SERIAL_REGISTER_IER 1 ///< R/W Interrupt Enable Register
-#define SERIAL_REGISTER_IIR 2 ///< RO Interrupt Identification Register
-#define SERIAL_REGISTER_FCR 2 ///< WO FIFO Cotrol Register
-#define SERIAL_REGISTER_LCR 3 ///< R/W Line Control Register
-#define SERIAL_REGISTER_MCR 4 ///< R/W Modem Control Register
-#define SERIAL_REGISTER_LSR 5 ///< R/W Line Status Register
-#define SERIAL_REGISTER_MSR 6 ///< R/W Modem Status Register
-#define SERIAL_REGISTER_SCR 7 ///< R/W Scratch Pad Register
-#pragma pack(1)
-
-///
-/// Interrupt Enable Register
-///
-typedef union {
- struct {
- UINT8 Ravie : 1; ///< Receiver Data Available Interrupt Enable
- UINT8 Theie : 1; ///< Transmistter Holding Register Empty Interrupt Enable
- UINT8 Rie : 1; ///< Receiver Interrupt Enable
- UINT8 Mie : 1; ///< Modem Interrupt Enable
- UINT8 Reserved : 4;
- } Bits;
- UINT8 Data;
-} SERIAL_PORT_IER;
-
-///
-/// FIFO Control Register
-///
-typedef union {
- struct {
- UINT8 TrFIFOE : 1; ///< Transmit and Receive FIFO Enable
- UINT8 ResetRF : 1; ///< Reset Reciever FIFO
- UINT8 ResetTF : 1; ///< Reset Transmistter FIFO
- UINT8 Dms : 1; ///< DMA Mode Select
- UINT8 Reserved : 1;
- UINT8 TrFIFO64 : 1; ///< Enable 64 byte FIFO
- UINT8 Rtb : 2; ///< Receive Trigger Bits
- } Bits;
- UINT8 Data;
-} SERIAL_PORT_FCR;
-
-///
-/// Line Control Register
-///
-typedef union {
- struct {
- UINT8 SerialDB : 2; ///< Number of Serial Data Bits
- UINT8 StopB : 1; ///< Number of Stop Bits
- UINT8 ParEn : 1; ///< Parity Enable
- UINT8 EvenPar : 1; ///< Even Parity Select
- UINT8 SticPar : 1; ///< Sticky Parity
- UINT8 BrCon : 1; ///< Break Control
- UINT8 DLab : 1; ///< Divisor Latch Access Bit
- } Bits;
- UINT8 Data;
-} SERIAL_PORT_LCR;
-
-///
-/// Modem Control Register
-///
-typedef union {
- struct {
- UINT8 DtrC : 1; ///< Data Terminal Ready Control
- UINT8 Rts : 1; ///< Request To Send Control
- UINT8 Out1 : 1; ///< Output1
- UINT8 Out2 : 1; ///< Output2, used to disable interrupt
- UINT8 Lme : 1; ///< Loopback Mode Enable
- UINT8 Reserved : 3;
- } Bits;
- UINT8 Data;
-} SERIAL_PORT_MCR;
-
-///
-/// Line Status Register
-///
-typedef union {
- struct {
- UINT8 Dr : 1; ///< Receiver Data Ready Status
- UINT8 Oe : 1; ///< Overrun Error Status
- UINT8 Pe : 1; ///< Parity Error Status
- UINT8 Fe : 1; ///< Framing Error Status
- UINT8 Bi : 1; ///< Break Interrupt Status
- UINT8 Thre : 1; ///< Transmistter Holding Register Status
- UINT8 Temt : 1; ///< Transmitter Empty Status
- UINT8 FIFOe : 1; ///< FIFO Error Status
- } Bits;
- UINT8 Data;
-} SERIAL_PORT_LSR;
-
-///
-/// Modem Status Register
-///
-typedef union {
- struct {
- UINT8 DeltaCTS : 1; ///< Delta Clear To Send Status
- UINT8 DeltaDSR : 1; ///< Delta Data Set Ready Status
- UINT8 TrailingEdgeRI : 1; ///< Trailing Edge of Ring Indicator Status
- UINT8 DeltaDCD : 1; ///< Delta Data Carrier Detect Status
- UINT8 Cts : 1; ///< Clear To Send Status
- UINT8 Dsr : 1; ///< Data Set Ready Status
- UINT8 Ri : 1; ///< Ring Indicator Status
- UINT8 Dcd : 1; ///< Data Carrier Detect Status
- } Bits;
- UINT8 Data;
-} SERIAL_PORT_MSR;
-
-#pragma pack()
-//
-// Define serial register I/O macros
-//
-#define READ_RBR(S) SerialReadRegister (S, SERIAL_REGISTER_RBR)
-#define READ_DLL(S) SerialReadRegister (S, SERIAL_REGISTER_DLL)
-#define READ_DLM(S) SerialReadRegister (S, SERIAL_REGISTER_DLM)
-#define READ_IER(S) SerialReadRegister (S, SERIAL_REGISTER_IER)
-#define READ_IIR(S) SerialReadRegister (S, SERIAL_REGISTER_IIR)
-#define READ_LCR(S) SerialReadRegister (S, SERIAL_REGISTER_LCR)
-#define READ_MCR(S) SerialReadRegister (S, SERIAL_REGISTER_MCR)
-#define READ_LSR(S) SerialReadRegister (S, SERIAL_REGISTER_LSR)
-#define READ_MSR(S) SerialReadRegister (S, SERIAL_REGISTER_MSR)
-#define READ_SCR(S) SerialReadRegister (S, SERIAL_REGISTER_SCR)
-
-#define WRITE_THR(S, D) SerialWriteRegister (S, SERIAL_REGISTER_THR, D)
-#define WRITE_DLL(S, D) SerialWriteRegister (S, SERIAL_REGISTER_DLL, D)
-#define WRITE_DLM(S, D) SerialWriteRegister (S, SERIAL_REGISTER_DLM, D)
-#define WRITE_IER(S, D) SerialWriteRegister (S, SERIAL_REGISTER_IER, D)
-#define WRITE_FCR(S, D) SerialWriteRegister (S, SERIAL_REGISTER_FCR, D)
-#define WRITE_LCR(S, D) SerialWriteRegister (S, SERIAL_REGISTER_LCR, D)
-#define WRITE_MCR(S, D) SerialWriteRegister (S, SERIAL_REGISTER_MCR, D)
-#define WRITE_LSR(S, D) SerialWriteRegister (S, SERIAL_REGISTER_LSR, D)
-#define WRITE_MSR(S, D) SerialWriteRegister (S, SERIAL_REGISTER_MSR, D)
-#define WRITE_SCR(S, D) SerialWriteRegister (S, SERIAL_REGISTER_SCR, D)
-
-//
-// Prototypes
-// Driver model protocol interface
-//
-/**
- Check to see if this driver supports the given controller
-
- @param This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
- @param Controller The handle of the controller to test.
- @param RemainingDevicePath A pointer to the remaining portion of a device path.
-
- @return EFI_SUCCESS This driver can support the given controller
-
-**/
-EFI_STATUS
-EFIAPI
-SerialControllerDriverSupported (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE Controller,
- IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
- );
-
-/**
- Start to management the controller passed in
-
- @param This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
- @param Controller The handle of the controller to test.
- @param RemainingDevicePath A pointer to the remaining portion of a device path.
-
- @return EFI_SUCCESS Driver is started successfully
-**/
-EFI_STATUS
-EFIAPI
-SerialControllerDriverStart (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE Controller,
- IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
- );
-
-/**
- Disconnect this driver with the controller, uninstall related protocol instance
-
- @param This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
- @param Controller The handle of the controller to test.
- @param NumberOfChildren Number of child device.
- @param ChildHandleBuffer A pointer to the remaining portion of a device path.
-
- @retval EFI_SUCCESS Operation successfully
- @retval EFI_DEVICE_ERROR Cannot stop the driver successfully
-
-**/
-EFI_STATUS
-EFIAPI
-SerialControllerDriverStop (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE Controller,
- IN UINTN NumberOfChildren,
- IN EFI_HANDLE *ChildHandleBuffer
- );
-
-//
-// Serial I/O Protocol Interface
-//
-/**
- Reset serial device.
-
- @param This Pointer to EFI_SERIAL_IO_PROTOCOL
-
- @retval EFI_SUCCESS Reset successfully
- @retval EFI_DEVICE_ERROR Failed to reset
-
-**/
-EFI_STATUS
-EFIAPI
-SerialReset (
- IN EFI_SERIAL_IO_PROTOCOL *This
- );
-
-/**
- Set new attributes to a serial device.
-
- @param This Pointer to EFI_SERIAL_IO_PROTOCOL
- @param BaudRate The baudrate of the serial device
- @param ReceiveFifoDepth The depth of receive FIFO buffer
- @param Timeout The request timeout for a single char
- @param Parity The type of parity used in serial device
- @param DataBits Number of databits used in serial device
- @param StopBits Number of stopbits used in serial device
-
- @retval EFI_SUCCESS The new attributes were set
- @retval EFI_INVALID_PARAMETERS One or more attributes have an unsupported value
- @retval EFI_UNSUPPORTED Data Bits can not set to 5 or 6
- @retval EFI_DEVICE_ERROR The serial device is not functioning correctly (no return)
-
-**/
-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
- );
-
-/**
- Set Control Bits.
-
- @param This Pointer to EFI_SERIAL_IO_PROTOCOL
- @param Control Control bits that can be settable
-
- @retval EFI_SUCCESS New Control bits were set successfully
- @retval EFI_UNSUPPORTED The Control bits wanted to set are not supported
-
-**/
-EFI_STATUS
-EFIAPI
-SerialSetControl (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- IN UINT32 Control
- );
-
-/**
- Get ControlBits.
-
- @param This Pointer to EFI_SERIAL_IO_PROTOCOL
- @param Control Control signals of the serial device
-
- @retval EFI_SUCCESS Get Control signals successfully
-
-**/
-EFI_STATUS
-EFIAPI
-SerialGetControl (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- OUT UINT32 *Control
- );
-
-/**
- Write the specified number of bytes to serial device.
-
- @param This Pointer to EFI_SERIAL_IO_PROTOCOL
- @param BufferSize On input the size of Buffer, on output the amount of
- data actually written
- @param Buffer The buffer of data to write
-
- @retval EFI_SUCCESS The data were written successfully
- @retval EFI_DEVICE_ERROR The device reported an error
- @retval EFI_TIMEOUT The write operation was stopped due to timeout
-
-**/
-EFI_STATUS
-EFIAPI
-SerialWrite (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- IN OUT UINTN *BufferSize,
- IN VOID *Buffer
- );
-
-/**
- Read the specified number of bytes from serial device.
-
- @param This Pointer to EFI_SERIAL_IO_PROTOCOL
- @param BufferSize On input the size of Buffer, on output the amount of
- data returned in buffer
- @param Buffer The buffer to return the data into
-
- @retval EFI_SUCCESS The data were read successfully
- @retval EFI_DEVICE_ERROR The device reported an error
- @retval EFI_TIMEOUT The read operation was stopped due to timeout
-
-**/
-EFI_STATUS
-EFIAPI
-SerialRead (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- IN OUT UINTN *BufferSize,
- OUT VOID *Buffer
- );
-
-//
-// Internal Functions
-//
-/**
- Use scratchpad register to test if this serial port is present.
-
- @param SerialDevice Pointer to serial device structure
-
- @return if this serial port is present
-**/
-BOOLEAN
-SerialPresent (
- IN SERIAL_DEV *SerialDevice
- );
-
-/**
- Detect whether specific FIFO is full or not.
-
- @param Fifo A pointer to the Data Structure SERIAL_DEV_FIFO
-
- @return whether specific FIFO is full or not
-
-**/
-BOOLEAN
-SerialFifoFull (
- IN SERIAL_DEV_FIFO *Fifo
- );
-
-/**
- Detect whether specific FIFO is empty or not.
-
- @param Fifo A pointer to the Data Structure SERIAL_DEV_FIFO
-
- @return whether specific FIFO is empty or not
-
-**/
-BOOLEAN
-SerialFifoEmpty (
- IN SERIAL_DEV_FIFO *Fifo
- );
-
-/**
- Add data to specific FIFO.
-
- @param Fifo A pointer to the Data Structure SERIAL_DEV_FIFO
- @param Data the data added to FIFO
-
- @retval EFI_SUCCESS Add data to specific FIFO successfully
- @retval EFI_OUT_OF_RESOURCE Failed to add data because FIFO is already full
-
-**/
-EFI_STATUS
-SerialFifoAdd (
- IN SERIAL_DEV_FIFO *Fifo,
- IN UINT8 Data
- );
-
-/**
- Remove data from specific FIFO.
-
- @param Fifo A pointer to the Data Structure SERIAL_DEV_FIFO
- @param Data the data removed from FIFO
-
- @retval EFI_SUCCESS Remove data from specific FIFO successfully
- @retval EFI_OUT_OF_RESOURCE Failed to remove data because FIFO is empty
-
-**/
-EFI_STATUS
-SerialFifoRemove (
- IN SERIAL_DEV_FIFO *Fifo,
- OUT UINT8 *Data
- );
-
-/**
- Reads and writes all avaliable data.
-
- @param SerialDevice The device to flush
-
- @retval EFI_SUCCESS Data was read/written successfully.
- @retval EFI_OUT_OF_RESOURCE Failed because software receive FIFO is full. Note, when
- this happens, pending writes are not done.
-
-**/
-EFI_STATUS
-SerialReceiveTransmit (
- IN SERIAL_DEV *SerialDevice
- );
-
-/**
- Read serial port.
-
- @param SerialDev Pointer to serial device
- @param Offset Offset in register group
-
- @return Data read from serial port
-**/
-UINT8
-SerialReadRegister (
- IN SERIAL_DEV *SerialDev,
- IN UINT32 Offset
- );
-
-/**
- Write serial port.
-
- @param SerialDev Pointer to serial device
- @param Offset Offset in register group
- @param Data data which is to be written to some serial port register
-**/
-VOID
-SerialWriteRegister (
- IN SERIAL_DEV *SerialDev,
- IN UINT32 Offset,
- IN UINT8 Data
- );
-
-
-//
-// EFI Component Name Functions
-//
-/**
- Retrieves a Unicode string that is the user readable name of the driver.
-
- This function retrieves the user readable name of a driver in the form of a
- Unicode string. If the driver specified by This has a user readable name in
- the language specified by Language, then a pointer to the driver name is
- returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
- by This does not support the language specified by Language,
- then EFI_UNSUPPORTED is returned.
-
- @param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
- EFI_COMPONENT_NAME_PROTOCOL instance.
-
- @param Language[in] A pointer to a Null-terminated ASCII string
- array indicating the language. This is the
- language of the driver name that the caller is
- requesting, and it must match one of the
- languages specified in SupportedLanguages. The
- number of languages supported by a driver is up
- to the driver writer. Language is specified
- in RFC 4646 or ISO 639-2 language code format.
-
- @param DriverName[out] A pointer to the Unicode string to return.
- This Unicode string is the name of the
- driver specified by This in the language
- specified by Language.
-
- @retval EFI_SUCCESS The Unicode string for the Driver specified by
- This and the language specified by Language was
- returned in DriverName.
-
- @retval EFI_INVALID_PARAMETER Language is NULL.
-
- @retval EFI_INVALID_PARAMETER DriverName is NULL.
-
- @retval EFI_UNSUPPORTED The driver specified by This does not support
- the language specified by Language.
-
-**/
-EFI_STATUS
-EFIAPI
-SerialComponentNameGetDriverName (
- IN EFI_COMPONENT_NAME_PROTOCOL *This,
- IN CHAR8 *Language,
- OUT CHAR16 **DriverName
- );
-
-
-/**
- Retrieves a Unicode string that is the user readable name of the controller
- that is being managed by a driver.
-
- This function retrieves the user readable name of the controller specified by
- ControllerHandle and ChildHandle in the form of a Unicode string. If the
- driver specified by This has a user readable name in the language specified by
- Language, then a pointer to the controller name is returned in ControllerName,
- and EFI_SUCCESS is returned. If the driver specified by This is not currently
- managing the controller specified by ControllerHandle and ChildHandle,
- then EFI_UNSUPPORTED is returned. If the driver specified by This does not
- support the language specified by Language, then EFI_UNSUPPORTED is returned.
-
- @param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
- EFI_COMPONENT_NAME_PROTOCOL instance.
-
- @param ControllerHandle[in] The handle of a controller that the driver
- specified by This is managing. This handle
- specifies the controller whose name is to be
- returned.
-
- @param ChildHandle[in] The handle of the child controller to retrieve
- the name of. This is an optional parameter that
- may be NULL. It will be NULL for device
- drivers. It will also be NULL for a bus drivers
- that wish to retrieve the name of the bus
- controller. It will not be NULL for a bus
- driver that wishes to retrieve the name of a
- child controller.
-
- @param Language[in] A pointer to a Null-terminated ASCII string
- array indicating the language. This is the
- language of the driver name that the caller is
- requesting, and it must match one of the
- languages specified in SupportedLanguages. The
- number of languages supported by a driver is up
- to the driver writer. Language is specified in
- RFC 4646 or ISO 639-2 language code format.
-
- @param ControllerName[out] A pointer to the Unicode string to return.
- This Unicode string is the name of the
- controller specified by ControllerHandle and
- ChildHandle in the language specified by
- Language from the point of view of the driver
- specified by This.
-
- @retval EFI_SUCCESS The Unicode string for the user readable name in
- the language specified by Language for the
- driver specified by This was returned in
- DriverName.
-
- @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
-
- @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
- EFI_HANDLE.
-
- @retval EFI_INVALID_PARAMETER Language is NULL.
-
- @retval EFI_INVALID_PARAMETER ControllerName is NULL.
-
- @retval EFI_UNSUPPORTED The driver specified by This is not currently
- managing the controller specified by
- ControllerHandle and ChildHandle.
-
- @retval EFI_UNSUPPORTED The driver specified by This does not support
- the language specified by Language.
-
-**/
-EFI_STATUS
-EFIAPI
-SerialComponentNameGetControllerName (
- IN EFI_COMPONENT_NAME_PROTOCOL *This,
- IN EFI_HANDLE ControllerHandle,
- IN EFI_HANDLE ChildHandle OPTIONAL,
- IN CHAR8 *Language,
- OUT CHAR16 **ControllerName
- );
-
-/**
- Add the component name for the serial io device
-
- @param SerialDevice A pointer to the SERIAL_DEV instance.
- @param Uid Unique ID for the serial device.
-**/
-VOID
-AddName (
- IN SERIAL_DEV *SerialDevice,
- IN UINT32 Uid
- );
-
-/**
- Checks whether the UART parameters are valid and computes the Divisor.
-
- @param ClockRate The clock rate of the serial device used to verify
- the BaudRate. Do not verify the BaudRate if it's 0.
- @param BaudRate The requested baudrate of the serial device.
- @param DataBits Number of databits used in serial device.
- @param Parity The type of parity used in serial device.
- @param StopBits Number of stopbits used in serial device.
- @param Divisor Return the divisor if ClockRate is not 0.
- @param ActualBaudRate Return the actual supported baudrate without
- exceeding BaudRate. NULL means baudrate degradation
- is not allowed.
- If the requested BaudRate is not supported, the routine
- returns TRUE and the Actual Baud Rate when ActualBaudRate
- is not NULL, returns FALSE when ActualBaudRate is NULL.
-
- @retval TRUE The UART parameters are valid.
- @retval FALSE The UART parameters are not valid.
-**/
-BOOLEAN
-VerifyUartParameters (
- IN UINT32 ClockRate,
- IN UINT64 BaudRate,
- IN UINT8 DataBits,
- IN EFI_PARITY_TYPE Parity,
- IN EFI_STOP_BITS_TYPE StopBits,
- OUT UINT64 *Divisor,
- OUT UINT64 *ActualBaudRate
- );
-
-/**
- Skip the optional Controller device path node and return the
- pointer to the next device path node.
-
- @param DevicePath Pointer to the device path.
- @param ContainsControllerNode Returns TRUE if the Controller device path exists.
- @param ControllerNumber Returns the Controller Number if Controller device path exists.
-
- @return Pointer to the next device path node.
-**/
-UART_DEVICE_PATH *
-SkipControllerDevicePathNode (
- EFI_DEVICE_PATH_PROTOCOL *DevicePath,
- BOOLEAN *ContainsControllerNode,
- UINT32 *ControllerNumber
- );
-
-/**
- Check the device path node whether it's the Flow Control node or not.
-
- @param[in] FlowControl The device path node to be checked.
-
- @retval TRUE It's the Flow Control node.
- @retval FALSE It's not.
-
-**/
-BOOLEAN
-IsUartFlowControlDevicePathNode (
- IN UART_FLOW_CONTROL_DEVICE_PATH *FlowControl
- );
-#endif
diff --git a/CorebootModulePkg/PciSioSerialDxe/SerialIo.c b/CorebootModulePkg/PciSioSerialDxe/SerialIo.c
deleted file mode 100644
index 85d537315c..0000000000
--- a/CorebootModulePkg/PciSioSerialDxe/SerialIo.c
+++ /dev/null
@@ -1,1320 +0,0 @@
-/** @file
- SerialIo implementation for PCI or SIO UARTs.
-
-Copyright (c) 2006 - 2015, 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 "Serial.h"
-
-/**
- Skip the optional Controller device path node and return the
- pointer to the next device path node.
-
- @param DevicePath Pointer to the device path.
- @param ContainsControllerNode Returns TRUE if the Controller device path exists.
- @param ControllerNumber Returns the Controller Number if Controller device path exists.
-
- @return Pointer to the next device path node.
-**/
-UART_DEVICE_PATH *
-SkipControllerDevicePathNode (
- EFI_DEVICE_PATH_PROTOCOL *DevicePath,
- BOOLEAN *ContainsControllerNode,
- UINT32 *ControllerNumber
- )
-{
- if ((DevicePathType (DevicePath) == HARDWARE_DEVICE_PATH) &&
- (DevicePathSubType (DevicePath) == HW_CONTROLLER_DP)
- ) {
- if (ContainsControllerNode != NULL) {
- *ContainsControllerNode = TRUE;
- }
- if (ControllerNumber != NULL) {
- *ControllerNumber = ((CONTROLLER_DEVICE_PATH *) DevicePath)->ControllerNumber;
- }
- DevicePath = NextDevicePathNode (DevicePath);
- } else {
- if (ContainsControllerNode != NULL) {
- *ContainsControllerNode = FALSE;
- }
- }
- return (UART_DEVICE_PATH *) DevicePath;
-}
-
-/**
- Checks whether the UART parameters are valid and computes the Divisor.
-
- @param ClockRate The clock rate of the serial device used to verify
- the BaudRate. Do not verify the BaudRate if it's 0.
- @param BaudRate The requested baudrate of the serial device.
- @param DataBits Number of databits used in serial device.
- @param Parity The type of parity used in serial device.
- @param StopBits Number of stopbits used in serial device.
- @param Divisor Return the divisor if ClockRate is not 0.
- @param ActualBaudRate Return the actual supported baudrate without
- exceeding BaudRate. NULL means baudrate degradation
- is not allowed.
- If the requested BaudRate is not supported, the routine
- returns TRUE and the Actual Baud Rate when ActualBaudRate
- is not NULL, returns FALSE when ActualBaudRate is NULL.
-
- @retval TRUE The UART parameters are valid.
- @retval FALSE The UART parameters are not valid.
-**/
-BOOLEAN
-VerifyUartParameters (
- IN UINT32 ClockRate,
- IN UINT64 BaudRate,
- IN UINT8 DataBits,
- IN EFI_PARITY_TYPE Parity,
- IN EFI_STOP_BITS_TYPE StopBits,
- OUT UINT64 *Divisor,
- OUT UINT64 *ActualBaudRate
- )
-{
- UINT64 Remainder;
- UINT32 ComputedBaudRate;
- UINT64 ComputedDivisor;
- UINT64 Percent;
-
- if ((DataBits < 5) || (DataBits > 8) ||
- (Parity < NoParity) || (Parity > SpaceParity) ||
- (StopBits < OneStopBit) || (StopBits > TwoStopBits) ||
- ((DataBits == 5) && (StopBits == TwoStopBits)) ||
- ((DataBits >= 6) && (DataBits <= 8) && (StopBits == OneFiveStopBits))
- ) {
- return FALSE;
- }
-
- //
- // Do not verify the baud rate if clock rate is unknown (0).
- //
- if (ClockRate == 0) {
- return TRUE;
- }
-
- //
- // Compute divisor use to program the baud rate using a round determination
- // Divisor = ClockRate / 16 / BaudRate = ClockRate / (16 * BaudRate)
- // = ClockRate / (BaudRate << 4)
- //
- ComputedDivisor = DivU64x64Remainder (ClockRate, LShiftU64 (BaudRate, 4), &Remainder);
- //
- // Round Divisor up by 1 if the Remainder is more than half (16 * BaudRate)
- // BaudRate * 16 / 2 = BaudRate * 8 = (BaudRate << 3)
- //
- if (Remainder >= LShiftU64 (BaudRate, 3)) {
- ComputedDivisor++;
- }
- //
- // If the computed divisor is larger than the maximum value that can be programmed
- // into the UART, then the requested baud rate can not be supported.
- //
- if (ComputedDivisor > MAX_UINT16) {
- return FALSE;
- }
-
- //
- // If the computed divisor is 0, then use a computed divisor of 1, which will select
- // the maximum supported baud rate.
- //
- if (ComputedDivisor == 0) {
- ComputedDivisor = 1;
- }
-
- //
- // Actual baud rate that the serial port will be programmed for
- // should be with in 4% of requested one.
- //
- ComputedBaudRate = ClockRate / ((UINT16) ComputedDivisor << 4);
- if (ComputedBaudRate == 0) {
- return FALSE;
- }
-
- Percent = DivU64x32 (MultU64x32 (BaudRate, 100), ComputedBaudRate);
- DEBUG ((EFI_D_INFO, "ClockRate = %d\n", ClockRate));
- DEBUG ((EFI_D_INFO, "Divisor = %ld\n", ComputedDivisor));
- DEBUG ((EFI_D_INFO, "BaudRate/Actual (%ld/%d) = %d%%\n", BaudRate, ComputedBaudRate, Percent));
-
- //
- // If the requested BaudRate is not supported:
- // Returns TRUE and the Actual Baud Rate when ActualBaudRate is not NULL;
- // Returns FALSE when ActualBaudRate is NULL.
- //
- if ((Percent >= 96) && (Percent <= 104)) {
- if (ActualBaudRate != NULL) {
- *ActualBaudRate = BaudRate;
- }
- if (Divisor != NULL) {
- *Divisor = ComputedDivisor;
- }
- return TRUE;
- }
- if (ComputedBaudRate < BaudRate) {
- if (ActualBaudRate != NULL) {
- *ActualBaudRate = ComputedBaudRate;
- }
- if (Divisor != NULL) {
- *Divisor = ComputedDivisor;
- }
- return TRUE;
- }
-
- //
- // ActualBaudRate is higher than requested baud rate and more than 4%
- // higher than the requested value. Increment Divisor if it is less
- // than MAX_UINT16 and computed baud rate with new divisor.
- //
- if (ComputedDivisor == MAX_UINT16) {
- return FALSE;
- }
- ComputedDivisor++;
- ComputedBaudRate = ClockRate / ((UINT16) ComputedDivisor << 4);
- if (ComputedBaudRate == 0) {
- return FALSE;
- }
-
- DEBUG ((EFI_D_INFO, "ClockRate = %d\n", ClockRate));
- DEBUG ((EFI_D_INFO, "Divisor = %ld\n", ComputedDivisor));
- DEBUG ((EFI_D_INFO, "BaudRate/Actual (%ld/%d) = %d%%\n", BaudRate, ComputedBaudRate, Percent));
-
- if (ActualBaudRate != NULL) {
- *ActualBaudRate = ComputedBaudRate;
- }
- if (Divisor != NULL) {
- *Divisor = ComputedDivisor;
- }
- return TRUE;
-}
-
-/**
- Detect whether specific FIFO is full or not.
-
- @param Fifo A pointer to the Data Structure SERIAL_DEV_FIFO
-
- @return whether specific FIFO is full or not
-**/
-BOOLEAN
-SerialFifoFull (
- IN SERIAL_DEV_FIFO *Fifo
- )
-{
- return (BOOLEAN) (((Fifo->Tail + 1) % SERIAL_MAX_FIFO_SIZE) == Fifo->Head);
-}
-
-/**
- Detect whether specific FIFO is empty or not.
-
- @param Fifo A pointer to the Data Structure SERIAL_DEV_FIFO
-
- @return whether specific FIFO is empty or not
-**/
-BOOLEAN
-SerialFifoEmpty (
- IN SERIAL_DEV_FIFO *Fifo
- )
-
-{
- return (BOOLEAN) (Fifo->Head == Fifo->Tail);
-}
-
-/**
- Add data to specific FIFO.
-
- @param Fifo A pointer to the Data Structure SERIAL_DEV_FIFO
- @param Data the data added to FIFO
-
- @retval EFI_SUCCESS Add data to specific FIFO successfully
- @retval EFI_OUT_OF_RESOURCE Failed to add data because FIFO is already full
-**/
-EFI_STATUS
-SerialFifoAdd (
- IN OUT SERIAL_DEV_FIFO *Fifo,
- IN UINT8 Data
- )
-{
- //
- // if FIFO full can not add data
- //
- if (SerialFifoFull (Fifo)) {
- return EFI_OUT_OF_RESOURCES;
- }
- //
- // FIFO is not full can add data
- //
- Fifo->Data[Fifo->Tail] = Data;
- Fifo->Tail = (Fifo->Tail + 1) % SERIAL_MAX_FIFO_SIZE;
- return EFI_SUCCESS;
-}
-
-/**
- Remove data from specific FIFO.
-
- @param Fifo A pointer to the Data Structure SERIAL_DEV_FIFO
- @param Data the data removed from FIFO
-
- @retval EFI_SUCCESS Remove data from specific FIFO successfully
- @retval EFI_OUT_OF_RESOURCE Failed to remove data because FIFO is empty
-
-**/
-EFI_STATUS
-SerialFifoRemove (
- IN OUT SERIAL_DEV_FIFO *Fifo,
- OUT UINT8 *Data
- )
-{
- //
- // if FIFO is empty, no data can remove
- //
- if (SerialFifoEmpty (Fifo)) {
- return EFI_OUT_OF_RESOURCES;
- }
- //
- // FIFO is not empty, can remove data
- //
- *Data = Fifo->Data[Fifo->Head];
- Fifo->Head = (Fifo->Head + 1) % SERIAL_MAX_FIFO_SIZE;
- return EFI_SUCCESS;
-}
-
-/**
- Reads and writes all avaliable data.
-
- @param SerialDevice The device to transmit.
-
- @retval EFI_SUCCESS Data was read/written successfully.
- @retval EFI_OUT_OF_RESOURCE Failed because software receive FIFO is full. Note, when
- this happens, pending writes are not done.
-
-**/
-EFI_STATUS
-SerialReceiveTransmit (
- IN SERIAL_DEV *SerialDevice
- )
-
-{
- SERIAL_PORT_LSR Lsr;
- UINT8 Data;
- BOOLEAN ReceiveFifoFull;
- SERIAL_PORT_MSR Msr;
- SERIAL_PORT_MCR Mcr;
- UINTN TimeOut;
-
- Data = 0;
-
- //
- // Begin the read or write
- //
- if (SerialDevice->SoftwareLoopbackEnable) {
- do {
- ReceiveFifoFull = SerialFifoFull (&SerialDevice->Receive);
- if (!SerialFifoEmpty (&SerialDevice->Transmit)) {
- SerialFifoRemove (&SerialDevice->Transmit, &Data);
- if (ReceiveFifoFull) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- SerialFifoAdd (&SerialDevice->Receive, Data);
- }
- } while (!SerialFifoEmpty (&SerialDevice->Transmit));
- } else {
- ReceiveFifoFull = SerialFifoFull (&SerialDevice->Receive);
- //
- // For full handshake flow control, tell the peer to send data
- // if receive buffer is available.
- //
- if (SerialDevice->HardwareFlowControl &&
- !FeaturePcdGet(PcdSerialUseHalfHandshake)&&
- !ReceiveFifoFull
- ) {
- Mcr.Data = READ_MCR (SerialDevice);
- Mcr.Bits.Rts = 1;
- WRITE_MCR (SerialDevice, Mcr.Data);
- }
- do {
- Lsr.Data = READ_LSR (SerialDevice);
-
- //
- // Flush incomming data to prevent a an overrun during a long write
- //
- if ((Lsr.Bits.Dr == 1) && !ReceiveFifoFull) {
- ReceiveFifoFull = SerialFifoFull (&SerialDevice->Receive);
- if (!ReceiveFifoFull) {
- if (Lsr.Bits.FIFOe == 1 || Lsr.Bits.Oe == 1 || Lsr.Bits.Pe == 1 || Lsr.Bits.Fe == 1 || Lsr.Bits.Bi == 1) {
- REPORT_STATUS_CODE_WITH_DEVICE_PATH (
- EFI_ERROR_CODE,
- EFI_P_EC_INPUT_ERROR | EFI_PERIPHERAL_SERIAL_PORT,
- SerialDevice->DevicePath
- );
- if (Lsr.Bits.FIFOe == 1 || Lsr.Bits.Pe == 1|| Lsr.Bits.Fe == 1 || Lsr.Bits.Bi == 1) {
- Data = READ_RBR (SerialDevice);
- continue;
- }
- }
-
- Data = READ_RBR (SerialDevice);
-
- SerialFifoAdd (&SerialDevice->Receive, Data);
-
- //
- // For full handshake flow control, if receive buffer full
- // tell the peer to stop sending data.
- //
- if (SerialDevice->HardwareFlowControl &&
- !FeaturePcdGet(PcdSerialUseHalfHandshake) &&
- SerialFifoFull (&SerialDevice->Receive)
- ) {
- Mcr.Data = READ_MCR (SerialDevice);
- Mcr.Bits.Rts = 0;
- WRITE_MCR (SerialDevice, Mcr.Data);
- }
-
-
- continue;
- } else {
- REPORT_STATUS_CODE_WITH_DEVICE_PATH (
- EFI_PROGRESS_CODE,
- EFI_P_SERIAL_PORT_PC_CLEAR_BUFFER | EFI_PERIPHERAL_SERIAL_PORT,
- SerialDevice->DevicePath
- );
- }
- }
- //
- // Do the write
- //
- if (Lsr.Bits.Thre == 1 && !SerialFifoEmpty (&SerialDevice->Transmit)) {
- //
- // Make sure the transmit data will not be missed
- //
- if (SerialDevice->HardwareFlowControl) {
- //
- // For half handshake flow control assert RTS before sending.
- //
- if (FeaturePcdGet(PcdSerialUseHalfHandshake)) {
- Mcr.Data = READ_MCR (SerialDevice);
- Mcr.Bits.Rts= 0;
- WRITE_MCR (SerialDevice, Mcr.Data);
- }
- //
- // Wait for CTS
- //
- TimeOut = 0;
- Msr.Data = READ_MSR (SerialDevice);
- while ((Msr.Bits.Dcd == 1) && ((Msr.Bits.Cts == 0) ^ FeaturePcdGet(PcdSerialUseHalfHandshake))) {
- gBS->Stall (TIMEOUT_STALL_INTERVAL);
- TimeOut++;
- if (TimeOut > 5) {
- break;
- }
-
- Msr.Data = READ_MSR (SerialDevice);
- }
-
- if ((Msr.Bits.Dcd == 0) || ((Msr.Bits.Cts == 1) ^ FeaturePcdGet(PcdSerialUseHalfHandshake))) {
- SerialFifoRemove (&SerialDevice->Transmit, &Data);
- WRITE_THR (SerialDevice, Data);
- }
-
- //
- // For half handshake flow control, tell DCE we are done.
- //
- if (FeaturePcdGet(PcdSerialUseHalfHandshake)) {
- Mcr.Data = READ_MCR (SerialDevice);
- Mcr.Bits.Rts = 1;
- WRITE_MCR (SerialDevice, Mcr.Data);
- }
- } else {
- SerialFifoRemove (&SerialDevice->Transmit, &Data);
- WRITE_THR (SerialDevice, Data);
- }
- }
- } while (Lsr.Bits.Thre == 1 && !SerialFifoEmpty (&SerialDevice->Transmit));
- }
-
- return EFI_SUCCESS;
-}
-
-/**
- Flush the serial hardware transmit FIFO and shift register.
-
- @param SerialDevice The device to flush.
-**/
-VOID
-SerialFlushTransmitFifo (
- SERIAL_DEV *SerialDevice
- )
-{
- SERIAL_PORT_LSR Lsr;
-
- //
- // Wait for the serial port to be ready, to make sure both the transmit FIFO
- // and shift register empty.
- //
- do {
- Lsr.Data = READ_LSR (SerialDevice);
- } while (Lsr.Bits.Temt == 0);
-}
-
-//
-// Interface Functions
-//
-/**
- Reset serial device.
-
- @param This Pointer to EFI_SERIAL_IO_PROTOCOL
-
- @retval EFI_SUCCESS Reset successfully
- @retval EFI_DEVICE_ERROR Failed to reset
-
-**/
-EFI_STATUS
-EFIAPI
-SerialReset (
- IN EFI_SERIAL_IO_PROTOCOL *This
- )
-{
- EFI_STATUS Status;
- SERIAL_DEV *SerialDevice;
- SERIAL_PORT_LCR Lcr;
- SERIAL_PORT_IER Ier;
- SERIAL_PORT_MCR Mcr;
- SERIAL_PORT_FCR Fcr;
- EFI_TPL Tpl;
- UINT32 Control;
-
- SerialDevice = SERIAL_DEV_FROM_THIS (This);
-
- //
- // Report the status code reset the serial
- //
- REPORT_STATUS_CODE_WITH_DEVICE_PATH (
- EFI_PROGRESS_CODE,
- EFI_P_PC_RESET | EFI_PERIPHERAL_SERIAL_PORT,
- SerialDevice->DevicePath
- );
-
- Tpl = gBS->RaiseTPL (TPL_NOTIFY);
-
- SerialFlushTransmitFifo (SerialDevice);
-
- //
- // Make sure DLAB is 0.
- //
- Lcr.Data = READ_LCR (SerialDevice);
- Lcr.Bits.DLab = 0;
- WRITE_LCR (SerialDevice, Lcr.Data);
-
- //
- // Turn off all interrupts
- //
- Ier.Data = READ_IER (SerialDevice);
- Ier.Bits.Ravie = 0;
- Ier.Bits.Theie = 0;
- Ier.Bits.Rie = 0;
- Ier.Bits.Mie = 0;
- WRITE_IER (SerialDevice, Ier.Data);
-
- //
- // Reset the FIFO
- //
- Fcr.Data = 0;
- Fcr.Bits.TrFIFOE = 0;
- WRITE_FCR (SerialDevice, Fcr.Data);
-
- //
- // Turn off loopback and disable device interrupt.
- //
- Mcr.Data = READ_MCR (SerialDevice);
- Mcr.Bits.Out1 = 0;
- Mcr.Bits.Out2 = 0;
- Mcr.Bits.Lme = 0;
- WRITE_MCR (SerialDevice, Mcr.Data);
-
- //
- // Clear the scratch pad register
- //
- WRITE_SCR (SerialDevice, 0);
-
- //
- // Enable FIFO
- //
- Fcr.Bits.TrFIFOE = 1;
- if (SerialDevice->ReceiveFifoDepth > 16) {
- Fcr.Bits.TrFIFO64 = 1;
- }
- Fcr.Bits.ResetRF = 1;
- Fcr.Bits.ResetTF = 1;
- WRITE_FCR (SerialDevice, Fcr.Data);
-
- //
- // Go set the current attributes
- //
- Status = This->SetAttributes (
- This,
- This->Mode->BaudRate,
- This->Mode->ReceiveFifoDepth,
- This->Mode->Timeout,
- (EFI_PARITY_TYPE) This->Mode->Parity,
- (UINT8) This->Mode->DataBits,
- (EFI_STOP_BITS_TYPE) This->Mode->StopBits
- );
-
- if (EFI_ERROR (Status)) {
- gBS->RestoreTPL (Tpl);
- return EFI_DEVICE_ERROR;
- }
- //
- // Go set the current control bits
- //
- Control = EFI_SERIAL_REQUEST_TO_SEND | EFI_SERIAL_DATA_TERMINAL_READY;
- if (SerialDevice->HardwareFlowControl) {
- Control |= EFI_SERIAL_HARDWARE_FLOW_CONTROL_ENABLE;
- }
- if (SerialDevice->SoftwareLoopbackEnable) {
- Control |= EFI_SERIAL_SOFTWARE_LOOPBACK_ENABLE;
- }
- Status = This->SetControl (
- This,
- Control
- );
-
- if (EFI_ERROR (Status)) {
- gBS->RestoreTPL (Tpl);
- return EFI_DEVICE_ERROR;
- }
-
- //
- // Reset the software FIFO
- //
- SerialDevice->Receive.Head = SerialDevice->Receive.Tail = 0;
- SerialDevice->Transmit.Head = SerialDevice->Transmit.Tail = 0;
- gBS->RestoreTPL (Tpl);
-
- //
- // Device reset is complete
- //
- return EFI_SUCCESS;
-}
-
-/**
- Set new attributes to a serial device.
-
- @param This Pointer to EFI_SERIAL_IO_PROTOCOL
- @param BaudRate The baudrate of the serial device
- @param ReceiveFifoDepth The depth of receive FIFO buffer
- @param Timeout The request timeout for a single char
- @param Parity The type of parity used in serial device
- @param DataBits Number of databits used in serial device
- @param StopBits Number of stopbits used in serial device
-
- @retval EFI_SUCCESS The new attributes were set
- @retval EFI_INVALID_PARAMETERS One or more attributes have an unsupported value
- @retval EFI_UNSUPPORTED Data Bits can not set to 5 or 6
- @retval EFI_DEVICE_ERROR The serial device is not functioning correctly (no return)
-
-**/
-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;
- SERIAL_DEV *SerialDevice;
- UINT64 Divisor;
- SERIAL_PORT_LCR Lcr;
- UART_DEVICE_PATH *Uart;
- EFI_TPL Tpl;
-
- SerialDevice = SERIAL_DEV_FROM_THIS (This);
-
- //
- // Check for default settings and fill in actual values.
- //
- if (BaudRate == 0) {
- BaudRate = PcdGet64 (PcdUartDefaultBaudRate);
- }
-
- if (ReceiveFifoDepth == 0) {
- ReceiveFifoDepth = SerialDevice->ReceiveFifoDepth;
- }
-
- if (Timeout == 0) {
- Timeout = SERIAL_PORT_DEFAULT_TIMEOUT;
- }
-
- if (Parity == DefaultParity) {
- Parity = (EFI_PARITY_TYPE) PcdGet8 (PcdUartDefaultParity);
- }
-
- if (DataBits == 0) {
- DataBits = PcdGet8 (PcdUartDefaultDataBits);
- }
-
- if (StopBits == DefaultStopBits) {
- StopBits = (EFI_STOP_BITS_TYPE) PcdGet8 (PcdUartDefaultStopBits);
- }
-
- if (!VerifyUartParameters (SerialDevice->ClockRate, BaudRate, DataBits, Parity, StopBits, &Divisor, &BaudRate)) {
- return EFI_INVALID_PARAMETER;
- }
-
- if ((ReceiveFifoDepth == 0) || (ReceiveFifoDepth > SerialDevice->ReceiveFifoDepth)) {
- return EFI_INVALID_PARAMETER;
- }
-
- if ((Timeout < SERIAL_PORT_MIN_TIMEOUT) || (Timeout > SERIAL_PORT_MAX_TIMEOUT)) {
- return EFI_INVALID_PARAMETER;
- }
-
- Tpl = gBS->RaiseTPL (TPL_NOTIFY);
-
- SerialFlushTransmitFifo (SerialDevice);
-
- //
- // Put serial port on Divisor Latch Mode
- //
- Lcr.Data = READ_LCR (SerialDevice);
- Lcr.Bits.DLab = 1;
- WRITE_LCR (SerialDevice, Lcr.Data);
-
- //
- // Write the divisor to the serial port
- //
- WRITE_DLL (SerialDevice, (UINT8) Divisor);
- WRITE_DLM (SerialDevice, (UINT8) ((UINT16) Divisor >> 8));
-
- //
- // Put serial port back in normal mode and set remaining attributes.
- //
- Lcr.Bits.DLab = 0;
-
- switch (Parity) {
- case NoParity:
- Lcr.Bits.ParEn = 0;
- Lcr.Bits.EvenPar = 0;
- Lcr.Bits.SticPar = 0;
- break;
-
- case EvenParity:
- Lcr.Bits.ParEn = 1;
- Lcr.Bits.EvenPar = 1;
- Lcr.Bits.SticPar = 0;
- break;
-
- case OddParity:
- Lcr.Bits.ParEn = 1;
- Lcr.Bits.EvenPar = 0;
- Lcr.Bits.SticPar = 0;
- break;
-
- case SpaceParity:
- Lcr.Bits.ParEn = 1;
- Lcr.Bits.EvenPar = 1;
- Lcr.Bits.SticPar = 1;
- break;
-
- case MarkParity:
- Lcr.Bits.ParEn = 1;
- Lcr.Bits.EvenPar = 0;
- Lcr.Bits.SticPar = 1;
- break;
-
- default:
- break;
- }
-
- switch (StopBits) {
- case OneStopBit:
- Lcr.Bits.StopB = 0;
- break;
-
- case OneFiveStopBits:
- case TwoStopBits:
- Lcr.Bits.StopB = 1;
- break;
-
- default:
- break;
- }
- //
- // DataBits
- //
- Lcr.Bits.SerialDB = (UINT8) ((DataBits - 5) & 0x03);
- WRITE_LCR (SerialDevice, Lcr.Data);
-
- //
- // Set the Serial I/O mode
- //
- This->Mode->BaudRate = BaudRate;
- This->Mode->ReceiveFifoDepth = ReceiveFifoDepth;
- This->Mode->Timeout = Timeout;
- This->Mode->Parity = Parity;
- This->Mode->DataBits = DataBits;
- This->Mode->StopBits = StopBits;
-
- //
- // See if Device Path Node has actually changed
- //
- if (SerialDevice->UartDevicePath.BaudRate == BaudRate &&
- SerialDevice->UartDevicePath.DataBits == DataBits &&
- SerialDevice->UartDevicePath.Parity == Parity &&
- SerialDevice->UartDevicePath.StopBits == StopBits
- ) {
- gBS->RestoreTPL (Tpl);
- return EFI_SUCCESS;
- }
- //
- // Update the device path
- //
- SerialDevice->UartDevicePath.BaudRate = BaudRate;
- SerialDevice->UartDevicePath.DataBits = DataBits;
- SerialDevice->UartDevicePath.Parity = (UINT8) Parity;
- SerialDevice->UartDevicePath.StopBits = (UINT8) StopBits;
-
- Status = EFI_SUCCESS;
- if (SerialDevice->Handle != NULL) {
-
- //
- // Skip the optional Controller device path node
- //
- Uart = SkipControllerDevicePathNode (
- (EFI_DEVICE_PATH_PROTOCOL *) (
- (UINT8 *) SerialDevice->DevicePath + GetDevicePathSize (SerialDevice->ParentDevicePath) - END_DEVICE_PATH_LENGTH
- ),
- NULL,
- NULL
- );
- CopyMem (Uart, &SerialDevice->UartDevicePath, sizeof (UART_DEVICE_PATH));
- Status = gBS->ReinstallProtocolInterface (
- SerialDevice->Handle,
- &gEfiDevicePathProtocolGuid,
- SerialDevice->DevicePath,
- SerialDevice->DevicePath
- );
- }
-
- gBS->RestoreTPL (Tpl);
-
- return Status;
-}
-
-/**
- Set Control Bits.
-
- @param This Pointer to EFI_SERIAL_IO_PROTOCOL
- @param Control Control bits that can be settable
-
- @retval EFI_SUCCESS New Control bits were set successfully
- @retval EFI_UNSUPPORTED The Control bits wanted to set are not supported
-
-**/
-EFI_STATUS
-EFIAPI
-SerialSetControl (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- IN UINT32 Control
- )
-{
- SERIAL_DEV *SerialDevice;
- SERIAL_PORT_MCR Mcr;
- EFI_TPL Tpl;
- UART_FLOW_CONTROL_DEVICE_PATH *FlowControl;
- EFI_STATUS Status;
-
- //
- // The control bits that can be set are :
- // EFI_SERIAL_DATA_TERMINAL_READY: 0x0001 // WO
- // EFI_SERIAL_REQUEST_TO_SEND: 0x0002 // WO
- // EFI_SERIAL_HARDWARE_LOOPBACK_ENABLE: 0x1000 // RW
- // EFI_SERIAL_SOFTWARE_LOOPBACK_ENABLE: 0x2000 // RW
- // EFI_SERIAL_HARDWARE_FLOW_CONTROL_ENABLE: 0x4000 // RW
- //
- SerialDevice = SERIAL_DEV_FROM_THIS (This);
-
- //
- // first determine the parameter is invalid
- //
- if ((Control & (~(EFI_SERIAL_REQUEST_TO_SEND | EFI_SERIAL_DATA_TERMINAL_READY |
- EFI_SERIAL_HARDWARE_LOOPBACK_ENABLE | EFI_SERIAL_SOFTWARE_LOOPBACK_ENABLE |
- EFI_SERIAL_HARDWARE_FLOW_CONTROL_ENABLE))) != 0) {
- return EFI_UNSUPPORTED;
- }
-
- Tpl = gBS->RaiseTPL (TPL_NOTIFY);
-
- Mcr.Data = READ_MCR (SerialDevice);
- Mcr.Bits.DtrC = 0;
- Mcr.Bits.Rts = 0;
- Mcr.Bits.Lme = 0;
- SerialDevice->SoftwareLoopbackEnable = FALSE;
- SerialDevice->HardwareFlowControl = FALSE;
-
- if ((Control & EFI_SERIAL_DATA_TERMINAL_READY) == EFI_SERIAL_DATA_TERMINAL_READY) {
- Mcr.Bits.DtrC = 1;
- }
-
- if ((Control & EFI_SERIAL_REQUEST_TO_SEND) == EFI_SERIAL_REQUEST_TO_SEND) {
- Mcr.Bits.Rts = 1;
- }
-
- if ((Control & EFI_SERIAL_HARDWARE_LOOPBACK_ENABLE) == EFI_SERIAL_HARDWARE_LOOPBACK_ENABLE) {
- Mcr.Bits.Lme = 1;
- }
-
- if ((Control & EFI_SERIAL_HARDWARE_FLOW_CONTROL_ENABLE) == EFI_SERIAL_HARDWARE_FLOW_CONTROL_ENABLE) {
- SerialDevice->HardwareFlowControl = TRUE;
- }
-
- WRITE_MCR (SerialDevice, Mcr.Data);
-
- if ((Control & EFI_SERIAL_SOFTWARE_LOOPBACK_ENABLE) == EFI_SERIAL_SOFTWARE_LOOPBACK_ENABLE) {
- SerialDevice->SoftwareLoopbackEnable = TRUE;
- }
-
- Status = EFI_SUCCESS;
- if (SerialDevice->Handle != NULL) {
- FlowControl = (UART_FLOW_CONTROL_DEVICE_PATH *) (
- (UINTN) SerialDevice->DevicePath
- + GetDevicePathSize (SerialDevice->ParentDevicePath)
- - END_DEVICE_PATH_LENGTH
- + sizeof (UART_DEVICE_PATH)
- );
- if (IsUartFlowControlDevicePathNode (FlowControl) &&
- ((BOOLEAN) (ReadUnaligned32 (&FlowControl->FlowControlMap) == UART_FLOW_CONTROL_HARDWARE) != SerialDevice->HardwareFlowControl)) {
- //
- // Flow Control setting is changed, need to reinstall device path protocol
- //
- WriteUnaligned32 (&FlowControl->FlowControlMap, SerialDevice->HardwareFlowControl ? UART_FLOW_CONTROL_HARDWARE : 0);
- Status = gBS->ReinstallProtocolInterface (
- SerialDevice->Handle,
- &gEfiDevicePathProtocolGuid,
- SerialDevice->DevicePath,
- SerialDevice->DevicePath
- );
- }
- }
-
- gBS->RestoreTPL (Tpl);
-
- return Status;
-}
-
-/**
- Get ControlBits.
-
- @param This Pointer to EFI_SERIAL_IO_PROTOCOL
- @param Control Control signals of the serial device
-
- @retval EFI_SUCCESS Get Control signals successfully
-
-**/
-EFI_STATUS
-EFIAPI
-SerialGetControl (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- OUT UINT32 *Control
- )
-{
- SERIAL_DEV *SerialDevice;
- SERIAL_PORT_MSR Msr;
- SERIAL_PORT_MCR Mcr;
- EFI_TPL Tpl;
-
- Tpl = gBS->RaiseTPL (TPL_NOTIFY);
-
- SerialDevice = SERIAL_DEV_FROM_THIS (This);
-
- *Control = 0;
-
- //
- // Read the Modem Status Register
- //
- Msr.Data = READ_MSR (SerialDevice);
-
- if (Msr.Bits.Cts == 1) {
- *Control |= EFI_SERIAL_CLEAR_TO_SEND;
- }
-
- if (Msr.Bits.Dsr == 1) {
- *Control |= EFI_SERIAL_DATA_SET_READY;
- }
-
- if (Msr.Bits.Ri == 1) {
- *Control |= EFI_SERIAL_RING_INDICATE;
- }
-
- if (Msr.Bits.Dcd == 1) {
- *Control |= EFI_SERIAL_CARRIER_DETECT;
- }
- //
- // Read the Modem Control Register
- //
- Mcr.Data = READ_MCR (SerialDevice);
-
- if (Mcr.Bits.DtrC == 1) {
- *Control |= EFI_SERIAL_DATA_TERMINAL_READY;
- }
-
- if (Mcr.Bits.Rts == 1) {
- *Control |= EFI_SERIAL_REQUEST_TO_SEND;
- }
-
- if (Mcr.Bits.Lme == 1) {
- *Control |= EFI_SERIAL_HARDWARE_LOOPBACK_ENABLE;
- }
-
- if (SerialDevice->HardwareFlowControl) {
- *Control |= EFI_SERIAL_HARDWARE_FLOW_CONTROL_ENABLE;
- }
- //
- // Update FIFO status
- //
- SerialReceiveTransmit (SerialDevice);
-
- //
- // See if the Transmit FIFO is empty
- //
- if (SerialFifoEmpty (&SerialDevice->Transmit)) {
- *Control |= EFI_SERIAL_OUTPUT_BUFFER_EMPTY;
- }
-
- //
- // See if the Receive FIFO is empty.
- //
- if (SerialFifoEmpty (&SerialDevice->Receive)) {
- *Control |= EFI_SERIAL_INPUT_BUFFER_EMPTY;
- }
-
- if (SerialDevice->SoftwareLoopbackEnable) {
- *Control |= EFI_SERIAL_SOFTWARE_LOOPBACK_ENABLE;
- }
-
- gBS->RestoreTPL (Tpl);
-
- return EFI_SUCCESS;
-}
-
-/**
- Write the specified number of bytes to serial device.
-
- @param This Pointer to EFI_SERIAL_IO_PROTOCOL
- @param BufferSize On input the size of Buffer, on output the amount of
- data actually written
- @param Buffer The buffer of data to write
-
- @retval EFI_SUCCESS The data were written successfully
- @retval EFI_DEVICE_ERROR The device reported an error
- @retval EFI_TIMEOUT The write operation was stopped due to timeout
-
-**/
-EFI_STATUS
-EFIAPI
-SerialWrite (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- IN OUT UINTN *BufferSize,
- IN VOID *Buffer
- )
-{
- SERIAL_DEV *SerialDevice;
- UINT8 *CharBuffer;
- UINT32 Index;
- UINTN Elapsed;
- UINTN ActualWrite;
- EFI_TPL Tpl;
- UINTN Timeout;
- UINTN BitsPerCharacter;
-
- SerialDevice = SERIAL_DEV_FROM_THIS (This);
- Elapsed = 0;
- ActualWrite = 0;
-
- if (*BufferSize == 0) {
- return EFI_SUCCESS;
- }
-
- if (Buffer == NULL) {
- REPORT_STATUS_CODE_WITH_DEVICE_PATH (
- EFI_ERROR_CODE,
- EFI_P_EC_OUTPUT_ERROR | EFI_PERIPHERAL_SERIAL_PORT,
- SerialDevice->DevicePath
- );
-
- return EFI_DEVICE_ERROR;
- }
-
- Tpl = gBS->RaiseTPL (TPL_NOTIFY);
-
- CharBuffer = (UINT8 *) Buffer;
-
- //
- // Compute the number of bits in a single character. This is a start bit,
- // followed by the number of data bits, followed by the number of stop bits.
- // The number of stop bits is specified by an enumeration that includes
- // support for 1.5 stop bits. Treat 1.5 stop bits as 2 stop bits.
- //
- BitsPerCharacter =
- 1 +
- This->Mode->DataBits +
- ((This->Mode->StopBits == TwoStopBits) ? 2 : This->Mode->StopBits);
-
- //
- // Compute the timeout in microseconds to wait for a single byte to be
- // transmitted. The Mode structure contans a Timeout field that is the
- // maximum time to transmit or receive a character. However, many UARTs
- // have a FIFO for transmits, so the time required to add one new character
- // to the transmit FIFO may be the time required to flush a full FIFO. If
- // the Timeout in the Mode structure is smaller than the time required to
- // flush a full FIFO at the current baud rate, then use a timeout value that
- // is required to flush a full transmit FIFO.
- //
- Timeout = MAX (
- This->Mode->Timeout,
- (UINTN)DivU64x64Remainder (
- BitsPerCharacter * (SerialDevice->TransmitFifoDepth + 1) * 1000000,
- This->Mode->BaudRate,
- NULL
- )
- );
-
- for (Index = 0; Index < *BufferSize; Index++) {
- SerialFifoAdd (&SerialDevice->Transmit, CharBuffer[Index]);
-
- while (SerialReceiveTransmit (SerialDevice) != EFI_SUCCESS || !SerialFifoEmpty (&SerialDevice->Transmit)) {
- //
- // Unsuccessful write so check if timeout has expired, if not,
- // stall for a bit, increment time elapsed, and try again
- //
- if (Elapsed >= Timeout) {
- *BufferSize = ActualWrite;
- gBS->RestoreTPL (Tpl);
- return EFI_TIMEOUT;
- }
-
- gBS->Stall (TIMEOUT_STALL_INTERVAL);
-
- Elapsed += TIMEOUT_STALL_INTERVAL;
- }
-
- ActualWrite++;
- //
- // Successful write so reset timeout
- //
- Elapsed = 0;
- }
-
- gBS->RestoreTPL (Tpl);
-
- return EFI_SUCCESS;
-}
-
-/**
- Read the specified number of bytes from serial device.
-
- @param This Pointer to EFI_SERIAL_IO_PROTOCOL
- @param BufferSize On input the size of Buffer, on output the amount of
- data returned in buffer
- @param Buffer The buffer to return the data into
-
- @retval EFI_SUCCESS The data were read successfully
- @retval EFI_DEVICE_ERROR The device reported an error
- @retval EFI_TIMEOUT The read operation was stopped due to timeout
-
-**/
-EFI_STATUS
-EFIAPI
-SerialRead (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- IN OUT UINTN *BufferSize,
- OUT VOID *Buffer
- )
-{
- SERIAL_DEV *SerialDevice;
- UINT32 Index;
- UINT8 *CharBuffer;
- UINTN Elapsed;
- EFI_STATUS Status;
- EFI_TPL Tpl;
-
- SerialDevice = SERIAL_DEV_FROM_THIS (This);
- Elapsed = 0;
-
- if (*BufferSize == 0) {
- return EFI_SUCCESS;
- }
-
- if (Buffer == NULL) {
- return EFI_DEVICE_ERROR;
- }
-
- Tpl = gBS->RaiseTPL (TPL_NOTIFY);
-
- Status = SerialReceiveTransmit (SerialDevice);
-
- if (EFI_ERROR (Status)) {
- *BufferSize = 0;
-
- REPORT_STATUS_CODE_WITH_DEVICE_PATH (
- EFI_ERROR_CODE,
- EFI_P_EC_INPUT_ERROR | EFI_PERIPHERAL_SERIAL_PORT,
- SerialDevice->DevicePath
- );
-
- gBS->RestoreTPL (Tpl);
-
- return EFI_DEVICE_ERROR;
- }
-
- CharBuffer = (UINT8 *) Buffer;
- for (Index = 0; Index < *BufferSize; Index++) {
- while (SerialFifoRemove (&SerialDevice->Receive, &(CharBuffer[Index])) != EFI_SUCCESS) {
- //
- // Unsuccessful read so check if timeout has expired, if not,
- // stall for a bit, increment time elapsed, and try again
- // Need this time out to get conspliter to work.
- //
- if (Elapsed >= This->Mode->Timeout) {
- *BufferSize = Index;
- gBS->RestoreTPL (Tpl);
- return EFI_TIMEOUT;
- }
-
- gBS->Stall (TIMEOUT_STALL_INTERVAL);
- Elapsed += TIMEOUT_STALL_INTERVAL;
-
- Status = SerialReceiveTransmit (SerialDevice);
- if (Status == EFI_DEVICE_ERROR) {
- *BufferSize = Index;
- gBS->RestoreTPL (Tpl);
- return EFI_DEVICE_ERROR;
- }
- }
- //
- // Successful read so reset timeout
- //
- Elapsed = 0;
- }
-
- SerialReceiveTransmit (SerialDevice);
-
- gBS->RestoreTPL (Tpl);
-
- return EFI_SUCCESS;
-}
-
-/**
- Use scratchpad register to test if this serial port is present.
-
- @param SerialDevice Pointer to serial device structure
-
- @return if this serial port is present
-**/
-BOOLEAN
-SerialPresent (
- IN SERIAL_DEV *SerialDevice
- )
-
-{
- UINT8 Temp;
- BOOLEAN Status;
-
- Status = TRUE;
-
- //
- // Save SCR reg
- //
- Temp = READ_SCR (SerialDevice);
- WRITE_SCR (SerialDevice, 0xAA);
-
- if (READ_SCR (SerialDevice) != 0xAA) {
- Status = FALSE;
- }
-
- WRITE_SCR (SerialDevice, 0x55);
-
- if (READ_SCR (SerialDevice) != 0x55) {
- Status = FALSE;
- }
- //
- // Restore SCR
- //
- WRITE_SCR (SerialDevice, Temp);
- return Status;
-}
-
-/**
- Read serial port.
-
- @param SerialDev Pointer to serial device
- @param Offset Offset in register group
-
- @return Data read from serial port
-
-**/
-UINT8
-SerialReadRegister (
- IN SERIAL_DEV *SerialDev,
- IN UINT32 Offset
- )
-{
- UINT8 Data;
- EFI_STATUS Status;
-
- if (SerialDev->PciDeviceInfo == NULL) {
- return IoRead8 ((UINTN) SerialDev->BaseAddress + Offset * SerialDev->RegisterStride);
- } else {
- if (SerialDev->MmioAccess) {
- Status = SerialDev->PciDeviceInfo->PciIo->Mem.Read (SerialDev->PciDeviceInfo->PciIo, EfiPciIoWidthUint8, EFI_PCI_IO_PASS_THROUGH_BAR,
- SerialDev->BaseAddress + Offset * SerialDev->RegisterStride, 1, &Data);
- } else {
- Status = SerialDev->PciDeviceInfo->PciIo->Io.Read (SerialDev->PciDeviceInfo->PciIo, EfiPciIoWidthUint8, EFI_PCI_IO_PASS_THROUGH_BAR,
- SerialDev->BaseAddress + Offset * SerialDev->RegisterStride, 1, &Data);
- }
- ASSERT_EFI_ERROR (Status);
- return Data;
- }
-}
-
-/**
- Write serial port.
-
- @param SerialDev Pointer to serial device
- @param Offset Offset in register group
- @param Data data which is to be written to some serial port register
-**/
-VOID
-SerialWriteRegister (
- IN SERIAL_DEV *SerialDev,
- IN UINT32 Offset,
- IN UINT8 Data
- )
-{
- EFI_STATUS Status;
-
- if (SerialDev->PciDeviceInfo == NULL) {
- IoWrite8 ((UINTN) SerialDev->BaseAddress + Offset * SerialDev->RegisterStride, Data);
- } else {
- if (SerialDev->MmioAccess) {
- Status = SerialDev->PciDeviceInfo->PciIo->Mem.Write (SerialDev->PciDeviceInfo->PciIo, EfiPciIoWidthUint8, EFI_PCI_IO_PASS_THROUGH_BAR,
- SerialDev->BaseAddress + Offset * SerialDev->RegisterStride, 1, &Data);
- } else {
- Status = SerialDev->PciDeviceInfo->PciIo->Io.Write (SerialDev->PciDeviceInfo->PciIo, EfiPciIoWidthUint8, EFI_PCI_IO_PASS_THROUGH_BAR,
- SerialDev->BaseAddress + Offset * SerialDev->RegisterStride, 1, &Data);
- }
- ASSERT_EFI_ERROR (Status);
- }
-}
diff --git a/CorebootModulePkg/SerialDxe/SerialDxe.inf b/CorebootModulePkg/SerialDxe/SerialDxe.inf
deleted file mode 100644
index 1133d4fd37..0000000000
--- a/CorebootModulePkg/SerialDxe/SerialDxe.inf
+++ /dev/null
@@ -1,55 +0,0 @@
-## @file
-# Serial driver that layers on top of a Serial Port Library instance.
-#
-# Copyright (c) 2008 - 2015, 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.
-#
-#
-##
-
-[Defines]
- INF_VERSION = 0x00010005
- BASE_NAME = SerialDxe
- MODULE_UNI_FILE = SerialDxe.uni
- FILE_GUID = D3987D4B-971A-435F-8CAF-4967EB627241
- MODULE_TYPE = DXE_DRIVER
- VERSION_STRING = 1.0
-
- ENTRY_POINT = SerialDxeInitialize
-
-[Sources.common]
- SerialIo.c
-
-[Packages]
- MdePkg/MdePkg.dec
- CorebootModulePkg/CorebootModulePkg.dec
-
-[LibraryClasses]
- UefiDriverEntryPoint
- UefiBootServicesTableLib
- DebugLib
- PcdLib
- PlatformHookLib
- SerialPortLib
-
-[Protocols]
- gEfiSerialIoProtocolGuid ## PRODUCES
- gEfiDevicePathProtocolGuid ## PRODUCES
-
-[Pcd]
- gEfiMdePkgTokenSpaceGuid.PcdUartDefaultBaudRate ## CONSUMES
- gEfiMdePkgTokenSpaceGuid.PcdUartDefaultDataBits ## CONSUMES
- gEfiMdePkgTokenSpaceGuid.PcdUartDefaultParity ## CONSUMES
- gEfiMdePkgTokenSpaceGuid.PcdUartDefaultStopBits ## CONSUMES
-
-[Depex]
- TRUE
-
-[UserExtensions.TianoCore."ExtraFiles"]
- SerialDxeExtra.uni
diff --git a/CorebootModulePkg/SerialDxe/SerialDxe.uni b/CorebootModulePkg/SerialDxe/SerialDxe.uni
deleted file mode 100644
index 6fbe0eaa44..0000000000
--- a/CorebootModulePkg/SerialDxe/SerialDxe.uni
+++ /dev/null
@@ -1,21 +0,0 @@
-// /** @file
-// Serial driver that layers on top of a Serial Port Library instance.
-//
-// Serial driver that layers on top of a Serial Port Library instance.
-//
-// Copyright (c) 2008 - 2015, 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.
-//
-// **/
-
-
-#string STR_MODULE_ABSTRACT #language en-US "Serial driver that layers on top of a Serial Port Library instance"
-
-#string STR_MODULE_DESCRIPTION #language en-US "Serial driver that layers on top of a Serial Port Library instance."
-
diff --git a/CorebootModulePkg/SerialDxe/SerialDxeExtra.uni b/CorebootModulePkg/SerialDxe/SerialDxeExtra.uni
deleted file mode 100644
index a0127fbf41..0000000000
--- a/CorebootModulePkg/SerialDxe/SerialDxeExtra.uni
+++ /dev/null
@@ -1,19 +0,0 @@
-// /** @file
-// SerialDxe Localized Strings and Content
-//
-// Copyright (c) 2008 - 2015, 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.
-//
-// **/
-
-#string STR_PROPERTIES_MODULE_NAME
-#language en-US
-"SerialDxe Driver"
-
-
diff --git a/CorebootModulePkg/SerialDxe/SerialIo.c b/CorebootModulePkg/SerialDxe/SerialIo.c
deleted file mode 100644
index 380e19b734..0000000000
--- a/CorebootModulePkg/SerialDxe/SerialIo.c
+++ /dev/null
@@ -1,528 +0,0 @@
-/** @file
- Serial driver that layers on top of a Serial Port Library instance.
-
- Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
- Copyright (c) 2013-2014, ARM Ltd. All rights reserved.<BR>
- Copyright (c) 2015, 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 <Library/UefiBootServicesTableLib.h>
-#include <Library/SerialPortLib.h>
-#include <Library/DebugLib.h>
-#include <Library/PcdLib.h>
-#include <Protocol/SerialIo.h>
-#include <Protocol/DevicePath.h>
-
-typedef struct {
- VENDOR_DEVICE_PATH Guid;
- UART_DEVICE_PATH Uart;
- EFI_DEVICE_PATH_PROTOCOL End;
-} SERIAL_DEVICE_PATH;
-
-/**
- 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
- );
-
-/**
- Sets the baud rate, receive FIFO depth, transmit/receive time out, parity,
- data bits, 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
- );
-
-/**
- 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
- );
-
-/**
- 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
- );
-
-/**
- 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
- );
-
-/**
- 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
- );
-
-EFI_HANDLE mSerialHandle = NULL;
-
-SERIAL_DEVICE_PATH mSerialDevicePath = {
- {
- { HARDWARE_DEVICE_PATH, HW_VENDOR_DP, { sizeof (VENDOR_DEVICE_PATH), 0} },
- EFI_CALLER_ID_GUID // Use the driver's GUID
- },
- {
- { MESSAGING_DEVICE_PATH, MSG_UART_DP, { sizeof (UART_DEVICE_PATH), 0} },
- 0, // Reserved
- 0, // BaudRate
- 0, // DataBits
- 0, // Parity
- 0 // StopBits
- },
- { END_DEVICE_PATH_TYPE, END_ENTIRE_DEVICE_PATH_SUBTYPE, { sizeof (EFI_DEVICE_PATH_PROTOCOL), 0 } }
-};
-
-//
-// Template used to initialize the Serial IO protocols.
-//
-EFI_SERIAL_IO_MODE mSerialIoMode = {
- //
- // value field set in SerialDxeInitialize()?
- //--------- ------------------- -----------------------------
- 0, // ControlMask
- 1000 * 1000, // Timeout
- 0, // BaudRate yes
- 1, // ReceiveFifoDepth
- 0, // DataBits yes
- 0, // Parity yes
- 0 // StopBits yes
-};
-
-EFI_SERIAL_IO_PROTOCOL mSerialIoTemplate = {
- SERIAL_IO_INTERFACE_REVISION,
- SerialReset,
- SerialSetAttributes,
- SerialSetControl,
- SerialGetControl,
- SerialWrite,
- SerialRead,
- &mSerialIoMode
-};
-
-/**
- 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 = 1;
- This->Mode->Timeout = 1000 * 1000;
- 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 (mSerialDevicePath.Uart.BaudRate == This->Mode->BaudRate &&
- mSerialDevicePath.Uart.DataBits == (UINT8) This->Mode->DataBits &&
- mSerialDevicePath.Uart.Parity == (UINT8) This->Mode->Parity &&
- mSerialDevicePath.Uart.StopBits == (UINT8) This->Mode->StopBits
- ) {
- gBS->RestoreTPL (Tpl);
- return EFI_SUCCESS;
- }
-
- //
- // Update the device path
- //
- mSerialDevicePath.Uart.BaudRate = This->Mode->BaudRate;
- mSerialDevicePath.Uart.DataBits = (UINT8) This->Mode->DataBits;
- mSerialDevicePath.Uart.Parity = (UINT8) This->Mode->Parity;
- mSerialDevicePath.Uart.StopBits = (UINT8) This->Mode->StopBits;
-
- Status = gBS->ReinstallProtocolInterface (
- mSerialHandle,
- &gEfiDevicePathProtocolGuid,
- &mSerialDevicePath,
- &mSerialDevicePath
- );
-
- gBS->RestoreTPL (Tpl);
-
- return Status;
-}
-
-/**
- Sets the baud rate, receive FIFO depth, transmit/receive time out, parity,
- data bits, 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;
-
- Status = SerialPortSetAttributes (&BaudRate, &ReceiveFifoDepth, &Timeout, &Parity, &DataBits, &StopBits);
- 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 = ReceiveFifoDepth;
- This->Mode->Timeout = Timeout;
- This->Mode->BaudRate = BaudRate;
- This->Mode->DataBits = (UINT32) DataBits;
- This->Mode->Parity = (UINT32) Parity;
- This->Mode->StopBits = (UINT32) StopBits;
-
- //
- // Check if the device path has actually changed
- //
- if (mSerialDevicePath.Uart.BaudRate == BaudRate &&
- mSerialDevicePath.Uart.DataBits == DataBits &&
- mSerialDevicePath.Uart.Parity == (UINT8) Parity &&
- mSerialDevicePath.Uart.StopBits == (UINT8) StopBits
- ) {
- gBS->RestoreTPL (Tpl);
- return EFI_SUCCESS;
- }
-
- //
- // Update the device path
- //
- mSerialDevicePath.Uart.BaudRate = BaudRate;
- mSerialDevicePath.Uart.DataBits = DataBits;
- mSerialDevicePath.Uart.Parity = (UINT8) Parity;
- mSerialDevicePath.Uart.StopBits = (UINT8) StopBits;
-
- Status = gBS->ReinstallProtocolInterface (
- mSerialHandle,
- &gEfiDevicePathProtocolGuid,
- &mSerialDevicePath,
- &mSerialDevicePath
- );
-
- 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 SerialPortSetControl (Control);
-}
-
-/**
- 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
- )
-{
- return SerialPortGetControl (Control);
-}
-
-/**
- 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;
-
- Count = 0;
-
- if (SerialPortPoll ()) {
- Count = SerialPortRead (Buffer, *BufferSize);
- }
-
- if (Count != *BufferSize) {
- *BufferSize = Count;
- return EFI_TIMEOUT;
- }
-
- return EFI_SUCCESS;
-}
-
-/**
- Initialization for the Serial Io Protocol.
-
- @param[in] ImageHandle The firmware allocated handle for the EFI image.
- @param[in] SystemTable A pointer to the EFI System Table.
-
- @retval EFI_SUCCESS The entry point is executed successfully.
- @retval other Some error occurs when executing this entry point.
-
-**/
-EFI_STATUS
-EFIAPI
-SerialDxeInitialize (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- )
-{
- EFI_STATUS Status;
-
- Status = SerialPortInitialize ();
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- mSerialIoMode.BaudRate = PcdGet64 (PcdUartDefaultBaudRate);
- mSerialIoMode.DataBits = (UINT32) PcdGet8 (PcdUartDefaultDataBits);
- mSerialIoMode.Parity = (UINT32) PcdGet8 (PcdUartDefaultParity);
- mSerialIoMode.StopBits = (UINT32) PcdGet8 (PcdUartDefaultStopBits);
- mSerialDevicePath.Uart.BaudRate = PcdGet64 (PcdUartDefaultBaudRate);
- mSerialDevicePath.Uart.DataBits = PcdGet8 (PcdUartDefaultDataBits);
- mSerialDevicePath.Uart.Parity = PcdGet8 (PcdUartDefaultParity);
- mSerialDevicePath.Uart.StopBits = PcdGet8 (PcdUartDefaultStopBits);
-
- //
- // Make a new handle with Serial IO protocol and its device path on it.
- //
- Status = gBS->InstallMultipleProtocolInterfaces (
- &mSerialHandle,
- &gEfiSerialIoProtocolGuid, &mSerialIoTemplate,
- &gEfiDevicePathProtocolGuid, &mSerialDevicePath,
- NULL
- );
- ASSERT_EFI_ERROR (Status);
-
- return Status;
-}
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-28 16:54:20 +0000