Coding style modification.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5058 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
klu2
@ -1,5 +1,5 @@
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/**@file
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Serial driver for standard UARTS on an ISA bus.
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Serial driver for standard UARTS on an ISA bus.
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Copyright (c) 2006 - 2007, Intel Corporation<BR>
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All rights reserved. This program and the accompanying materials
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@ -122,7 +122,16 @@ InitializeIsaSerial (
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return Status;
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}
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/**
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Check to see if this driver supports the given controller
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@param This - A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
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@param Controller - The handle of the controller to test.
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@param RemainingDevicePath - A pointer to the remaining portion of a device path.
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@return EFI_SUCCESS - This driver can support the given controller
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**/
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EFI_STATUS
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EFIAPI
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SerialControllerDriverSupported (
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@ -130,23 +139,7 @@ SerialControllerDriverSupported (
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IN EFI_HANDLE Controller,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
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)
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/*++
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Routine Description:
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Check to see if this driver supports the given controller
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Arguments:
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This - A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
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Controller - The handle of the controller to test.
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RemainingDevicePath - A pointer to the remaining portion of a device path.
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Returns:
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EFI_SUCCESS - This driver can support the given controller
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--*/
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{
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EFI_STATUS Status;
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EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
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@ -265,6 +258,16 @@ Error:
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return Status;
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}
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/**
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Start to management the controller passed in
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@param This - A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
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@param Controller - The handle of the controller to test.
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@param RemainingDevicePath - A pointer to the remaining portion of a device path.
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@return EFI_SUCCESS - Driver is started successfully
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**/
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EFI_STATUS
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EFIAPI
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SerialControllerDriverStart (
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@ -272,23 +275,7 @@ SerialControllerDriverStart (
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IN EFI_HANDLE Controller,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
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)
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/*++
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Routine Description:
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Start to management the controller passed in
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Arguments:
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This - A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
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Controller - The handle of the controller to test.
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RemainingDevicePath - A pointer to the remaining portion of a device path.
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Returns:
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EFI_SUCCESS - Driver is started successfully
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--*/
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{
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EFI_STATUS Status;
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EFI_ISA_IO_PROTOCOL *IsaIo;
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@ -527,6 +514,18 @@ Error:
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return Status;
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}
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/**
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Disconnect this driver with the controller, uninstall related protocol instance
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@param This - A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
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@param Controller - The handle of the controller to test.
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@param NumberOfChildren - Number of child device.
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@param RemainingDevicePath - A pointer to the remaining portion of a device path.
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@retval EFI_SUCCESS - Operation successfully
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@retval EFI_DEVICE_ERROR - Cannot stop the driver successfully
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**/
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EFI_STATUS
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EFIAPI
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SerialControllerDriverStop (
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@ -535,25 +534,7 @@ SerialControllerDriverStop (
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IN UINTN NumberOfChildren,
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IN EFI_HANDLE *ChildHandleBuffer
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)
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/*++
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Routine Description:
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Disconnect this driver with the controller, uninstall related protocol instance
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Arguments:
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This - A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
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Controller - The handle of the controller to test.
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NumberOfChildren - Number of child device.
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RemainingDevicePath - A pointer to the remaining portion of a device path.
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Returns:
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EFI_SUCCESS - Operation successfully
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EFI_DEVICE_ERROR - Cannot stop the driver successfully
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--*/
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{
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EFI_STATUS Status;
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UINTN Index;
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@ -664,26 +645,19 @@ SerialControllerDriverStop (
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return EFI_SUCCESS;
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}
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/**
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Detect whether specific FIFO is full or not
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@param Fifo - A pointer to the Data Structure SERIAL_DEV_FIFO
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@return whether specific FIFO is full or not
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**/
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BOOLEAN
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IsaSerialFifoFull (
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IN SERIAL_DEV_FIFO *Fifo
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)
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/*++
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Routine Description:
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Detect whether specific FIFO is full or not
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Arguments:
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Fifo - A pointer to the Data Structure SERIAL_DEV_FIFO
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Returns:
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TRUE - the FIFO is full
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FALSE - the FIFO is not full
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--*/
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{
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if (Fifo->Surplus == 0) {
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return TRUE;
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@ -692,26 +666,20 @@ IsaSerialFifoFull (
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return FALSE;
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}
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/**
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Detect whether specific FIFO is empty or not
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@param Fifo - A pointer to the Data Structure SERIAL_DEV_FIFO
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@return whether specific FIFO is empty or not
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**/
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BOOLEAN
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IsaSerialFifoEmpty (
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IN SERIAL_DEV_FIFO *Fifo
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)
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/*++
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Routine Description:
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Detect whether specific FIFO is empty or not
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Arguments:
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Fifo - A pointer to the Data Structure SERIAL_DEV_FIFO
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Returns:
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TRUE - the FIFO is empty
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FALSE - the FIFO is not empty
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--*/
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{
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if (Fifo->Surplus == SERIAL_MAX_BUFFER_SIZE) {
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return TRUE;
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@ -720,28 +688,22 @@ IsaSerialFifoEmpty (
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return FALSE;
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}
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/**
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Add data to specific FIFO
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@param Fifo - A pointer to the Data Structure SERIAL_DEV_FIFO
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@param Data - the data added to FIFO
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@retval EFI_SUCCESS - Add data to specific FIFO successfully
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@retval EFI_OUT_OF_RESOURCE - Failed to add data because FIFO is already full
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**/
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EFI_STATUS
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IsaSerialFifoAdd (
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IN SERIAL_DEV_FIFO *Fifo,
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IN UINT8 Data
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)
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/*++
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Routine Description:
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Add data to specific FIFO
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Arguments:
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Fifo - A pointer to the Data Structure SERIAL_DEV_FIFO
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Data - the data added to FIFO
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Returns:
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EFI_SUCCESS - Add data to specific FIFO successfully
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EFI_OUT_OF_RESOURCE - Failed to add data because FIFO is already full
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--*/
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{
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//
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// if FIFO full can not add data
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@ -762,27 +724,22 @@ IsaSerialFifoAdd (
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return EFI_SUCCESS;
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}
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/**
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Remove data from specific FIFO
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@param Fifo - A pointer to the Data Structure SERIAL_DEV_FIFO
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@param Data - the data removed from FIFO
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@retval EFI_SUCCESS - Remove data from specific FIFO successfully
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@retval EFI_OUT_OF_RESOURCE - Failed to remove data because FIFO is empty
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**/
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EFI_STATUS
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IsaSerialFifoRemove (
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IN SERIAL_DEV_FIFO *Fifo,
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OUT UINT8 *Data
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)
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/*++
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Routine Description:
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Remove data from specific FIFO
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Arguments:
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Fifo - A pointer to the Data Structure SERIAL_DEV_FIFO
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Data - the data removed from FIFO
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Returns:
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EFI_SUCCESS - Remove data from specific FIFO successfully
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EFI_OUT_OF_RESOURCE - Failed to remove data because FIFO is empty
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--*/
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{
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//
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// if FIFO is empty, no data can remove
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@ -803,27 +760,21 @@ IsaSerialFifoRemove (
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return EFI_SUCCESS;
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}
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/**
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Reads and writes all avaliable data.
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@param SerialDevice - The device to flush
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@retval EFI_SUCCESS - Data was read/written successfully.
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@retval EFI_OUT_OF_RESOURCE - Failed because software receive FIFO is full. Note, when
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this happens, pending writes are not done.
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**/
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EFI_STATUS
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IsaSerialReceiveTransmit (
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IN SERIAL_DEV *SerialDevice
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)
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/*++
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Routine Description:
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Reads and writes all avaliable data.
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Arguments:
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SerialDevice - The device to flush
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Returns:
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EFI_SUCCESS - Data was read/written successfully.
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EFI_OUT_OF_RESOURCE - Failed because software receive FIFO is full. Note, when
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this happens, pending writes are not done.
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--*/
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{
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SERIAL_PORT_LSR Lsr;
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UINT8 Data;
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@ -968,30 +919,24 @@ IsaSerialReceiveTransmit (
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return EFI_SUCCESS;
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}
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//
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// Interface Functions
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//
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/**
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Reset serial device
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@param This - Pointer to EFI_SERIAL_IO_PROTOCOL
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@retval EFI_SUCCESS - Reset successfully
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@retval EFI_DEVICE_ERROR - Failed to reset
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**/
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EFI_STATUS
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EFIAPI
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IsaSerialReset (
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IN EFI_SERIAL_IO_PROTOCOL *This
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)
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/*++
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Routine Description:
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Reset serial device
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Arguments:
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This - Pointer to EFI_SERIAL_IO_PROTOCOL
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Returns:
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EFI_SUCCESS - Reset successfully
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EFI_DEVICE_ERROR - Failed to reset
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--*/
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{
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EFI_STATUS Status;
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SERIAL_DEV *SerialDevice;
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@ -1106,6 +1051,23 @@ IsaSerialReset (
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return EFI_SUCCESS;
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}
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/**
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Set new attributes to a serial device
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@param This - Pointer to EFI_SERIAL_IO_PROTOCOL
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@param BaudRate - The baudrate of the serial device
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@param ReceiveFifoDepth - The depth of receive FIFO buffer
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@param Timeout - The request timeout for a single char
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@param Parity - The type of parity used in serial device
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@param DataBits - Number of databits used in serial device
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@param StopBits - Number of stopbits used in serial device
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@retval EFI_SUCCESS - The new attributes were set
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@retval EFI_INVALID_PARAMETERS - One or more attributes have an unsupported value
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@retval EFI_UNSUPPORTED - Data Bits can not set to 5 or 6
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@retval EFI_DEVICE_ERROR - The serial device is not functioning correctly (no return)
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**/
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EFI_STATUS
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EFIAPI
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IsaSerialSetAttributes (
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@ -1117,30 +1079,6 @@ IsaSerialSetAttributes (
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IN UINT8 DataBits,
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IN EFI_STOP_BITS_TYPE StopBits
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)
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/*++
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Routine Description:
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Set new attributes to a serial device
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Arguments:
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This - Pointer to EFI_SERIAL_IO_PROTOCOL
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BaudRate - The baudrate of the serial device
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ReceiveFifoDepth - The depth of receive FIFO buffer
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Timeout - The request timeout for a single char
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Parity - The type of parity used in serial device
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DataBits - Number of databits used in serial device
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StopBits - Number of stopbits used in serial device
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Returns:
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EFI_SUCCESS - The new attributes were set
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EFI_INVALID_PARAMETERS - One or more attributes have an unsupported value
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EFI_UNSUPPORTED - Data Bits can not set to 5 or 6
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EFI_DEVICE_ERROR - The serial device is not functioning correctly (no return)
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--*/
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{
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EFI_STATUS Status;
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SERIAL_DEV *SerialDevice;
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@ -1424,29 +1362,22 @@ IsaSerialSetAttributes (
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return EFI_SUCCESS;
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}
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/**
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Set Control Bits
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|
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@param This - Pointer to EFI_SERIAL_IO_PROTOCOL
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@param Control - Control bits that can be settable
|
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|
||||
@retval EFI_SUCCESS - New Control bits were set successfully
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||||
@retval EFI_UNSUPPORTED - The Control bits wanted to set are not supported
|
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|
||||
**/
|
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EFI_STATUS
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EFIAPI
|
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IsaSerialSetControl (
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IN EFI_SERIAL_IO_PROTOCOL *This,
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||||
IN UINT32 Control
|
||||
)
|
||||
/*++
|
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||||
Routine Description:
|
||||
|
||||
Set Control Bits
|
||||
|
||||
Arguments:
|
||||
|
||||
This - Pointer to EFI_SERIAL_IO_PROTOCOL
|
||||
Control - Control bits that can be settable
|
||||
|
||||
Returns:
|
||||
|
||||
EFI_SUCCESS - New Control bits were set successfully
|
||||
EFI_UNSUPPORTED - The Control bits wanted to set are not supported
|
||||
|
||||
--*/
|
||||
{
|
||||
SERIAL_DEV *SerialDevice;
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SERIAL_PORT_MCR Mcr;
|
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@ -1504,28 +1435,21 @@ IsaSerialSetControl (
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
|
||||
/**
|
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Get ControlBits
|
||||
|
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@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
|
||||
IsaSerialGetControl (
|
||||
IN EFI_SERIAL_IO_PROTOCOL *This,
|
||||
OUT UINT32 *Control
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
Get ControlBits
|
||||
|
||||
Arguments:
|
||||
|
||||
This - Pointer to EFI_SERIAL_IO_PROTOCOL
|
||||
Control - Control signals of the serial device
|
||||
|
||||
Returns:
|
||||
|
||||
EFI_SUCCESS - Get Control signals successfully
|
||||
|
||||
--*/
|
||||
{
|
||||
SERIAL_DEV *SerialDevice;
|
||||
SERIAL_PORT_MSR Msr;
|
||||
@ -1604,6 +1528,19 @@ IsaSerialGetControl (
|
||||
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
|
||||
IsaSerialWrite (
|
||||
@ -1611,26 +1548,6 @@ IsaSerialWrite (
|
||||
IN OUT UINTN *BufferSize,
|
||||
IN VOID *Buffer
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
Write the specified number of bytes to serial device
|
||||
|
||||
Arguments:
|
||||
|
||||
This - Pointer to EFI_SERIAL_IO_PROTOCOL
|
||||
BufferSize - On input the size of Buffer, on output the amount of
|
||||
data actually written
|
||||
Buffer - The buffer of data to write
|
||||
|
||||
Returns:
|
||||
|
||||
EFI_SUCCESS - The data were written successfully
|
||||
EFI_DEVICE_ERROR - The device reported an error
|
||||
EFI_TIMEOUT - The write operation was stopped due to timeout
|
||||
|
||||
--*/
|
||||
{
|
||||
SERIAL_DEV *SerialDevice;
|
||||
UINT8 *CharBuffer;
|
||||
@ -1692,6 +1609,19 @@ IsaSerialWrite (
|
||||
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
|
||||
IsaSerialRead (
|
||||
@ -1699,26 +1629,6 @@ IsaSerialRead (
|
||||
IN OUT UINTN *BufferSize,
|
||||
OUT VOID *Buffer
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
Read the specified number of bytes from serial device
|
||||
|
||||
Arguments:
|
||||
|
||||
This - Pointer to EFI_SERIAL_IO_PROTOCOL
|
||||
BufferSize - On input the size of Buffer, on output the amount of
|
||||
data returned in buffer
|
||||
Buffer - The buffer to return the data into
|
||||
|
||||
Returns:
|
||||
|
||||
EFI_SUCCESS - The data were read successfully
|
||||
EFI_DEVICE_ERROR - The device reported an error
|
||||
EFI_TIMEOUT - The read operation was stopped due to timeout
|
||||
|
||||
--*/
|
||||
{
|
||||
SERIAL_DEV *SerialDevice;
|
||||
UINT32 Index;
|
||||
@ -1793,26 +1703,18 @@ IsaSerialRead (
|
||||
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
|
||||
IsaSerialPortPresent (
|
||||
IN SERIAL_DEV *SerialDevice
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
Use scratchpad register to test if this serial port is present
|
||||
|
||||
Arguments:
|
||||
|
||||
SerialDevice - Pointer to serial device structure
|
||||
|
||||
Returns:
|
||||
|
||||
TRUE - The serial port is present
|
||||
FALSE - The serial port is NOT present
|
||||
|
||||
--*/
|
||||
{
|
||||
UINT8 Temp;
|
||||
BOOLEAN Status;
|
||||
@ -1845,29 +1747,22 @@ IsaSerialPortPresent (
|
||||
return Status;
|
||||
}
|
||||
|
||||
/**
|
||||
Use IsaIo protocol to read serial port
|
||||
|
||||
@param IsaIo - Pointer to EFI_ISA_IO_PROTOCOL instance
|
||||
@param BaseAddress - Serial port register group base address
|
||||
@param Offset - Offset in register group
|
||||
|
||||
@return Data read from serial port
|
||||
|
||||
**/
|
||||
UINT8
|
||||
IsaSerialReadPort (
|
||||
IN EFI_ISA_IO_PROTOCOL *IsaIo,
|
||||
IN UINT16 BaseAddress,
|
||||
IN UINT32 Offset
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
Use IsaIo protocol to read serial port
|
||||
|
||||
Arguments:
|
||||
|
||||
IsaIo - Pointer to EFI_ISA_IO_PROTOCOL instance
|
||||
BaseAddress - Serial port register group base address
|
||||
Offset - Offset in register group
|
||||
|
||||
Returns:
|
||||
|
||||
Data read from serial port
|
||||
|
||||
--*/
|
||||
{
|
||||
UINT8 Data;
|
||||
|
||||
@ -1884,6 +1779,15 @@ IsaSerialReadPort (
|
||||
return Data;
|
||||
}
|
||||
|
||||
/**
|
||||
Use IsaIo protocol to write serial port
|
||||
|
||||
@param IsaIo - Pointer to EFI_ISA_IO_PROTOCOL instance
|
||||
@param BaseAddress - Serial port register group base address
|
||||
@param Offset - Offset in register group
|
||||
@param Data - data which is to be written to some serial port register
|
||||
|
||||
**/
|
||||
VOID
|
||||
IsaSerialWritePort (
|
||||
IN EFI_ISA_IO_PROTOCOL *IsaIo,
|
||||
@ -1891,24 +1795,6 @@ IsaSerialWritePort (
|
||||
IN UINT32 Offset,
|
||||
IN UINT8 Data
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
Use IsaIo protocol to write serial port
|
||||
|
||||
Arguments:
|
||||
|
||||
IsaIo - Pointer to EFI_ISA_IO_PROTOCOL instance
|
||||
BaseAddress - Serial port register group base address
|
||||
Offset - Offset in register group
|
||||
Data - data which is to be written to some serial port register
|
||||
|
||||
Returns:
|
||||
|
||||
None
|
||||
|
||||
--*/
|
||||
{
|
||||
//
|
||||
// Use IsaIo to access IO
|
||||
|
||||
Reference in New Issue
Block a user