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1. Retired HotPlugDevice protocol.

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2. Check devicepath node to get hot plug information. Currently, USB and PCCard device are checked.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7673 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
vanjeff
2009-02-25 07:54:57 +00:00
parent 34070f1dbf
commit f1aec6ccb4
8 changed files with 143 additions and 136 deletions
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113
MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatform.c
View File

@@ -256,12 +256,12 @@ ConPlatformTextInDriverBindingStart (
return Status;
}
//
// Check the device handle, if it is a hot plug device,
// Check the device path, if it is a hot plug device,
// do not put the device path into ConInDev, and install
// gEfiConsoleInDeviceGuid to the device handle directly.
// The policy is, make hot plug device plug in and play immediately.
//
if (IsHotPlugDevice (This->DriverBindingHandle, ControllerHandle)) {
if (IsHotPlugDevice (DevicePath)) {
gBS->InstallMultipleProtocolInterfaces (
&ControllerHandle,
&gEfiConsoleInDeviceGuid,
@@ -373,12 +373,12 @@ ConPlatformTextOutDriverBindingStart (
return Status;
}
//
// Check the device handle, if it is a hot plug device,
// Check the device path, if it is a hot plug device,
// do not put the device path into ConOutDev and ErrOutDev,
// and install gEfiConsoleOutDeviceGuid to the device handle directly.
// The policy is, make hot plug device plug in and play immediately.
//
if (IsHotPlugDevice (This->DriverBindingHandle, ControllerHandle)) {
if (IsHotPlugDevice (DevicePath)) {
gBS->InstallMultipleProtocolInterfaces (
&ControllerHandle,
&gEfiConsoleOutDeviceGuid,
@@ -482,21 +482,24 @@ ConPlatformTextInDriverBindingStop (
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
//
// If it is not a hot-plug device, first delete it from the ConInDev variable.
// Get the Device Path Protocol firstly
//
if (!IsHotPlugDevice (This->DriverBindingHandle, ControllerHandle)) {
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiDevicePathProtocolGuid,
(VOID **) &DevicePath,
This->DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
//
// If there is device path on ControllerHandle
//
if (!EFI_ERROR (Status)) {
//
// Get the Device Path Protocol so the environment variables can be updated
// If it is not a hot-plug device, first delete it from the ConInDev variable.
//
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiDevicePathProtocolGuid,
(VOID **) &DevicePath,
This->DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (!EFI_ERROR (Status)) {
if (!IsHotPlugDevice (DevicePath)) {
//
// Remove DevicePath from ConInDev
//
@@ -507,6 +510,7 @@ ConPlatformTextInDriverBindingStop (
);
}
}
//
// Uninstall the Console Device GUIDs from Controller Handle
//
@@ -557,21 +561,21 @@ ConPlatformTextOutDriverBindingStop (
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
//
// If it is not a hot-plug device, first delete it from the ConOutDev and ErrOutDev variable.
// Get the Device Path Protocol firstly
//
if (!IsHotPlugDevice (This->DriverBindingHandle, ControllerHandle)) {
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiDevicePathProtocolGuid,
(VOID **) &DevicePath,
This->DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (!EFI_ERROR (Status)) {
//
// Get the Device Path Protocol so the environment variables can be updated
// If it is not a hot-plug device, first delete it from the ConOutDev and ErrOutDev variable.
//
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiDevicePathProtocolGuid,
(VOID **) &DevicePath,
This->DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (!EFI_ERROR (Status)) {
if (!IsHotPlugDevice (DevicePath)) {
//
// Remove DevicePath from ConOutDev, and ErrOutDev
//
@@ -587,6 +591,7 @@ ConPlatformTextOutDriverBindingStop (
);
}
}
//
// Uninstall the Console Device GUIDs from Controller Handle
//
@@ -929,10 +934,12 @@ ConPlatformUpdateDeviceVariable (
}
/**
Check if the device supports hot-plug.
Check if the device supports hot-plug through its device path.
@param DriverBindingHandle Protocol instance pointer.
@param ControllerHandle Handle of device to check.
This function could be updated to check more types of Hot Plug devices.
Currently, it checks USB and PCCard device.
@param DevicePath Pointer to device's device path.
@retval TRUE The devcie is a hot-plug device
@retval FALSE The devcie is not a hot-plug device.
@@ -940,26 +947,36 @@ ConPlatformUpdateDeviceVariable (
**/
BOOLEAN
IsHotPlugDevice (
EFI_HANDLE DriverBindingHandle,
EFI_HANDLE ControllerHandle
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
)
{
EFI_STATUS Status;
EFI_DEVICE_PATH_PROTOCOL *CheckDevicePath;
//
// HotPlugDeviceGuid indicates ControllerHandle stands for a hot plug device.
//
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiHotPlugDeviceGuid,
NULL,
DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_TEST_PROTOCOL
);
if (EFI_ERROR (Status)) {
return FALSE;
CheckDevicePath = DevicePath;
while (!IsDevicePathEnd (CheckDevicePath)) {
//
// Check device whether is hot plug device or not throught Device Path
//
if ((DevicePathType (CheckDevicePath) == MESSAGING_DEVICE_PATH) &&
(DevicePathSubType (CheckDevicePath) == MSG_USB_DP ||
DevicePathSubType (CheckDevicePath) == MSG_USB_CLASS_DP ||
DevicePathSubType (CheckDevicePath) == MSG_USB_WWID_DP)) {
//
// If Device is USB device
//
return TRUE;
}
if ((DevicePathType (CheckDevicePath) == HARDWARE_DEVICE_PATH) &&
(DevicePathSubType (CheckDevicePath) == HW_PCCARD_DP)) {
//
// If Device is PCCard
//
return TRUE;
}
CheckDevicePath = NextDevicePathNode (CheckDevicePath);
}
return TRUE;
return FALSE;
}