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Diffstat (limited to 'EmulatorPkg/EmuBusDriverDxe/EmuBusDriverDxe.c')
-rw-r--r--EmulatorPkg/EmuBusDriverDxe/EmuBusDriverDxe.c200
1 files changed, 95 insertions, 105 deletions
diff --git a/EmulatorPkg/EmuBusDriverDxe/EmuBusDriverDxe.c b/EmulatorPkg/EmuBusDriverDxe/EmuBusDriverDxe.c
index d8380f2be9..2feb158186 100644
--- a/EmulatorPkg/EmuBusDriverDxe/EmuBusDriverDxe.c
+++ b/EmulatorPkg/EmuBusDriverDxe/EmuBusDriverDxe.c
@@ -10,12 +10,10 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
#include "EmuBusDriverDxe.h"
-
-
//
// DriverBinding protocol global
//
-EFI_DRIVER_BINDING_PROTOCOL gEmuBusDriverBinding = {
+EFI_DRIVER_BINDING_PROTOCOL gEmuBusDriverBinding = {
EmuBusDriverBindingSupported,
EmuBusDriverBindingStart,
EmuBusDriverBindingStop,
@@ -24,8 +22,6 @@ EFI_DRIVER_BINDING_PROTOCOL gEmuBusDriverBinding = {
NULL
};
-
-
EFI_STATUS
EFIAPI
EmuBusDriverBindingSupported (
@@ -52,9 +48,10 @@ EmuBusDriverBindingSupported (
// If RemainingDevicePath isn't the End of Device Path Node,
// check its validation
//
- if (RemainingDevicePath->Type != HARDWARE_DEVICE_PATH ||
- RemainingDevicePath->SubType != HW_VENDOR_DP ||
- DevicePathNodeLength(RemainingDevicePath) != sizeof(EMU_VENDOR_DEVICE_PATH_NODE)) {
+ if ((RemainingDevicePath->Type != HARDWARE_DEVICE_PATH) ||
+ (RemainingDevicePath->SubType != HW_VENDOR_DP) ||
+ (DevicePathNodeLength (RemainingDevicePath) != sizeof (EMU_VENDOR_DEVICE_PATH_NODE)))
+ {
return EFI_UNSUPPORTED;
}
}
@@ -66,7 +63,7 @@ EmuBusDriverBindingSupported (
Status = gBS->OpenProtocol (
ControllerHandle,
&gEmuThunkProtocolGuid,
- (VOID **)&EmuThunk ,
+ (VOID **)&EmuThunk,
This->DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_BY_DRIVER
@@ -83,11 +80,11 @@ EmuBusDriverBindingSupported (
// Close the I/O Abstraction(s) used to perform the supported test
//
gBS->CloseProtocol (
- ControllerHandle,
- &gEmuThunkProtocolGuid,
- This->DriverBindingHandle,
- ControllerHandle
- );
+ ControllerHandle,
+ &gEmuThunkProtocolGuid,
+ This->DriverBindingHandle,
+ ControllerHandle
+ );
//
// Open the EFI Device Path protocol needed to perform the supported test
@@ -108,21 +105,19 @@ EmuBusDriverBindingSupported (
return Status;
}
-
//
// Close protocol, don't use device path protocol in the Support() function
//
gBS->CloseProtocol (
- ControllerHandle,
- &gEfiDevicePathProtocolGuid,
- This->DriverBindingHandle,
- ControllerHandle
- );
+ ControllerHandle,
+ &gEfiDevicePathProtocolGuid,
+ This->DriverBindingHandle,
+ ControllerHandle
+ );
return Status;
}
-
EFI_STATUS
EFIAPI
EmuBusDriverBindingStart (
@@ -131,19 +126,19 @@ EmuBusDriverBindingStart (
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
- EFI_STATUS Status;
- EFI_STATUS InstallStatus;
- EMU_THUNK_PROTOCOL *EmuThunk;
- EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
- EMU_IO_DEVICE *EmuDevice;
- EMU_BUS_DEVICE *EmuBusDevice;
- EMU_IO_THUNK_PROTOCOL *EmuIoThunk;
- UINT16 ComponentName[512];
- EMU_VENDOR_DEVICE_PATH_NODE *Node;
- BOOLEAN CreateDevice;
+ EFI_STATUS Status;
+ EFI_STATUS InstallStatus;
+ EMU_THUNK_PROTOCOL *EmuThunk;
+ EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
+ EMU_IO_DEVICE *EmuDevice;
+ EMU_BUS_DEVICE *EmuBusDevice;
+ EMU_IO_THUNK_PROTOCOL *EmuIoThunk;
+ UINT16 ComponentName[512];
+ EMU_VENDOR_DEVICE_PATH_NODE *Node;
+ BOOLEAN CreateDevice;
InstallStatus = EFI_UNSUPPORTED;
- Status = EFI_UNSUPPORTED;
+ Status = EFI_UNSUPPORTED;
//
// Grab the protocols we need
@@ -156,7 +151,7 @@ EmuBusDriverBindingStart (
ControllerHandle,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
- if (EFI_ERROR (Status) && Status != EFI_ALREADY_STARTED) {
+ if (EFI_ERROR (Status) && (Status != EFI_ALREADY_STARTED)) {
return Status;
}
@@ -168,7 +163,7 @@ EmuBusDriverBindingStart (
ControllerHandle,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
- if (EFI_ERROR (Status) && Status != EFI_ALREADY_STARTED) {
+ if (EFI_ERROR (Status) && (Status != EFI_ALREADY_STARTED)) {
return Status;
}
@@ -196,10 +191,10 @@ EmuBusDriverBindingStart (
FALSE
);
-
Status = gBS->InstallMultipleProtocolInterfaces (
&ControllerHandle,
- &gEfiCallerIdGuid, EmuBusDevice,
+ &gEfiCallerIdGuid,
+ EmuBusDevice,
NULL
);
if (EFI_ERROR (Status)) {
@@ -209,7 +204,6 @@ EmuBusDriverBindingStart (
}
}
-
for (Status = EFI_SUCCESS, EmuIoThunk = NULL; !EFI_ERROR (Status); ) {
Status = EmuThunk->GetNextProtocol (TRUE, &EmuIoThunk);
if (EFI_ERROR (Status)) {
@@ -218,7 +212,7 @@ EmuBusDriverBindingStart (
CreateDevice = TRUE;
if (RemainingDevicePath != NULL) {
- CreateDevice = FALSE;
+ CreateDevice = FALSE;
//
// Check if RemainingDevicePath is the End of Device Path Node,
// if yes, don't create any child device
@@ -228,12 +222,13 @@ EmuBusDriverBindingStart (
// If RemainingDevicePath isn't the End of Device Path Node,
// check its validation
//
- Node = (EMU_VENDOR_DEVICE_PATH_NODE *) RemainingDevicePath;
- if (Node->VendorDevicePath.Header.Type == HARDWARE_DEVICE_PATH &&
- Node->VendorDevicePath.Header.SubType == HW_VENDOR_DP &&
- DevicePathNodeLength (&Node->VendorDevicePath.Header) == sizeof (EMU_VENDOR_DEVICE_PATH_NODE)
- ) {
- if (CompareGuid (&Node->VendorDevicePath.Guid, EmuIoThunk->Protocol) && Node->Instance == EmuIoThunk->Instance) {
+ Node = (EMU_VENDOR_DEVICE_PATH_NODE *)RemainingDevicePath;
+ if ((Node->VendorDevicePath.Header.Type == HARDWARE_DEVICE_PATH) &&
+ (Node->VendorDevicePath.Header.SubType == HW_VENDOR_DP) &&
+ (DevicePathNodeLength (&Node->VendorDevicePath.Header) == sizeof (EMU_VENDOR_DEVICE_PATH_NODE))
+ )
+ {
+ if (CompareGuid (&Node->VendorDevicePath.Guid, EmuIoThunk->Protocol) && (Node->Instance == EmuIoThunk->Instance)) {
CreateDevice = TRUE;
}
}
@@ -249,9 +244,9 @@ EmuBusDriverBindingStart (
return EFI_OUT_OF_RESOURCES;
}
- EmuDevice->Handle = NULL;
- EmuDevice->ControllerHandle = ControllerHandle;
- EmuDevice->ParentDevicePath = ParentDevicePath;
+ EmuDevice->Handle = NULL;
+ EmuDevice->ControllerHandle = ControllerHandle;
+ EmuDevice->ParentDevicePath = ParentDevicePath;
CopyMem (&EmuDevice->EmuIoThunk, EmuIoThunk, sizeof (EMU_IO_THUNK_PROTOCOL));
EmuDevice->ControllerNameTable = NULL;
@@ -264,10 +259,10 @@ EmuBusDriverBindingStart (
);
EmuDevice->DevicePath = EmuBusCreateDevicePath (
- ParentDevicePath,
- EmuIoThunk->Protocol,
- EmuIoThunk->Instance
- );
+ ParentDevicePath,
+ EmuIoThunk->Protocol,
+ EmuIoThunk->Instance
+ );
if (EmuDevice->DevicePath == NULL) {
gBS->FreePool (EmuDevice);
return EFI_OUT_OF_RESOURCES;
@@ -283,11 +278,13 @@ EmuBusDriverBindingStart (
EmuDevice->Signature = EMU_IO_DEVICE_SIGNATURE;
InstallStatus = gBS->InstallMultipleProtocolInterfaces (
- &EmuDevice->Handle,
- &gEfiDevicePathProtocolGuid, EmuDevice->DevicePath,
- &gEmuIoThunkProtocolGuid, &EmuDevice->EmuIoThunk,
- NULL
- );
+ &EmuDevice->Handle,
+ &gEfiDevicePathProtocolGuid,
+ EmuDevice->DevicePath,
+ &gEmuIoThunkProtocolGuid,
+ &EmuDevice->EmuIoThunk,
+ NULL
+ );
if (EFI_ERROR (InstallStatus)) {
FreeUnicodeStringTable (EmuDevice->ControllerNameTable);
gBS->FreePool (EmuDevice);
@@ -298,7 +295,7 @@ EmuBusDriverBindingStart (
Status = gBS->OpenProtocol (
ControllerHandle,
&gEmuThunkProtocolGuid,
- (VOID **)&EmuThunk ,
+ (VOID **)&EmuThunk,
This->DriverBindingHandle,
EmuDevice->Handle,
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
@@ -313,7 +310,6 @@ EmuBusDriverBindingStart (
return InstallStatus;
}
-
EFI_STATUS
EFIAPI
EmuBusDriverBindingStop (
@@ -323,13 +319,13 @@ EmuBusDriverBindingStop (
IN EFI_HANDLE *ChildHandleBuffer
)
{
- EFI_STATUS Status;
- UINTN Index;
- BOOLEAN AllChildrenStopped;
- EMU_IO_THUNK_PROTOCOL *EmuIoThunk;
- EMU_BUS_DEVICE *EmuBusDevice;
- EMU_IO_DEVICE *EmuDevice;
- EMU_THUNK_PROTOCOL *EmuThunk;
+ EFI_STATUS Status;
+ UINTN Index;
+ BOOLEAN AllChildrenStopped;
+ EMU_IO_THUNK_PROTOCOL *EmuIoThunk;
+ EMU_BUS_DEVICE *EmuBusDevice;
+ EMU_IO_DEVICE *EmuDevice;
+ EMU_THUNK_PROTOCOL *EmuThunk;
//
// Complete all outstanding transactions to Controller.
@@ -353,35 +349,35 @@ EmuBusDriverBindingStop (
}
gBS->UninstallMultipleProtocolInterfaces (
- ControllerHandle,
- &gEfiCallerIdGuid, EmuBusDevice,
- NULL
- );
+ ControllerHandle,
+ &gEfiCallerIdGuid,
+ EmuBusDevice,
+ NULL
+ );
FreeUnicodeStringTable (EmuBusDevice->ControllerNameTable);
gBS->FreePool (EmuBusDevice);
gBS->CloseProtocol (
- ControllerHandle,
- &gEmuThunkProtocolGuid,
- This->DriverBindingHandle,
- ControllerHandle
- );
+ ControllerHandle,
+ &gEmuThunkProtocolGuid,
+ This->DriverBindingHandle,
+ ControllerHandle
+ );
gBS->CloseProtocol (
- ControllerHandle,
- &gEfiDevicePathProtocolGuid,
- This->DriverBindingHandle,
- ControllerHandle
- );
+ ControllerHandle,
+ &gEfiDevicePathProtocolGuid,
+ This->DriverBindingHandle,
+ ControllerHandle
+ );
return EFI_SUCCESS;
}
AllChildrenStopped = TRUE;
for (Index = 0; Index < NumberOfChildren; Index++) {
-
Status = gBS->OpenProtocol (
ChildHandleBuffer[Index],
&gEmuIoThunkProtocolGuid,
@@ -402,20 +398,22 @@ EmuBusDriverBindingStop (
Status = gBS->UninstallMultipleProtocolInterfaces (
EmuDevice->Handle,
- &gEfiDevicePathProtocolGuid, EmuDevice->DevicePath,
- &gEmuIoThunkProtocolGuid, &EmuDevice->EmuIoThunk,
+ &gEfiDevicePathProtocolGuid,
+ EmuDevice->DevicePath,
+ &gEmuIoThunkProtocolGuid,
+ &EmuDevice->EmuIoThunk,
NULL
);
if (EFI_ERROR (Status)) {
gBS->OpenProtocol (
- ControllerHandle,
- &gEmuThunkProtocolGuid,
- (VOID **) &EmuThunk ,
- This->DriverBindingHandle,
- EmuDevice->Handle,
- EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
- );
+ ControllerHandle,
+ &gEmuThunkProtocolGuid,
+ (VOID **)&EmuThunk,
+ This->DriverBindingHandle,
+ EmuDevice->Handle,
+ EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
+ );
} else {
//
// Close the child handle
@@ -437,7 +435,6 @@ EmuBusDriverBindingStop (
return EFI_SUCCESS;
}
-
/*++
Routine Description:
@@ -466,8 +463,8 @@ EmuBusCreateDevicePath (
{
EMU_VENDOR_DEVICE_PATH_NODE DevicePath;
- DevicePath.VendorDevicePath.Header.Type = HARDWARE_DEVICE_PATH;
- DevicePath.VendorDevicePath.Header.SubType = HW_VENDOR_DP;
+ DevicePath.VendorDevicePath.Header.Type = HARDWARE_DEVICE_PATH;
+ DevicePath.VendorDevicePath.Header.SubType = HW_VENDOR_DP;
SetDevicePathNodeLength (&DevicePath.VendorDevicePath.Header, sizeof (EMU_VENDOR_DEVICE_PATH_NODE));
//
@@ -482,13 +479,11 @@ EmuBusCreateDevicePath (
DevicePath.Instance = InstanceNumber;
return AppendDevicePathNode (
- RootDevicePath,
- (EFI_DEVICE_PATH_PROTOCOL *) &DevicePath
- );
+ RootDevicePath,
+ (EFI_DEVICE_PATH_PROTOCOL *)&DevicePath
+ );
}
-
-
/**
The user Entry Point for module EmuBusDriver. The user code starts with this function.
@@ -502,11 +497,11 @@ EmuBusCreateDevicePath (
EFI_STATUS
EFIAPI
InitializeEmuBusDriver (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
)
{
- EFI_STATUS Status;
+ EFI_STATUS Status;
Status = EfiLibInstallAllDriverProtocols (
ImageHandle,
@@ -519,10 +514,5 @@ InitializeEmuBusDriver (
);
ASSERT_EFI_ERROR (Status);
-
return Status;
}
-
-
-
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-03 00:41:08 +0000