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CloverBootloader/Drivers/UsbBusDxe/UsbBus.c
SergeySlice 8fc250a95c reconsideration of USB protocol 
revert UUID endianess to traitional

Signed-off-by: SergeySlice <sergey.slice@gmail.com>
2022-05-07 17:03:25 +03:00

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/** @file
Usb Bus Driver Binding and Bus IO Protocol.
Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "UsbBus.h"
#include <Library/MemLogLib.h>
#include <Library/PrintLib.h>
#ifndef DEBUG_ALL
#define DEBUG_UU 0
#else
#define DEBUG_UU DEBUG_ALL
#endif
#if DEBUG_UU == 0
#define DBG(...)
#elif DEBUG_UU == 1
#define DBG(...) MemLog(TRUE, 1, __VA_ARGS__)
#else
#define DBG(...) MemLog(TRUE, 0, __VA_ARGS__)
#endif
EFI_USB_IO_PROTOCOL mUsbIoProtocol = {
UsbIoControlTransfer,
UsbIoBulkTransfer,
UsbIoAsyncInterruptTransfer,
UsbIoSyncInterruptTransfer,
UsbIoIsochronousTransfer,
UsbIoAsyncIsochronousTransfer,
UsbIoGetDeviceDescriptor,
UsbIoGetActiveConfigDescriptor,
UsbIoGetInterfaceDescriptor,
UsbIoGetEndpointDescriptor,
UsbIoGetStringDescriptor,
UsbIoGetSupportedLanguages,
UsbIoPortReset
};
EFI_DRIVER_BINDING_PROTOCOL mUsbBusDriverBinding = {
UsbBusControllerDriverSupported,
UsbBusControllerDriverStart,
UsbBusControllerDriverStop,
0xa,
NULL,
NULL
};
/**
USB_IO function to execute a control transfer. This
function will execute the USB transfer. If transfer
successes, it will sync the internal state of USB bus
with device state.
@param This The USB_IO instance
@param Request The control transfer request
@param Direction Direction for data stage
@param Timeout The time to wait before timeout
@param Data The buffer holding the data
@param DataLength Then length of the data
@param UsbStatus USB result
@retval EFI_INVALID_PARAMETER The parameters are invalid
@retval EFI_SUCCESS The control transfer succeeded.
@retval Others Failed to execute the transfer
**/
EFI_STATUS
EFIAPI
UsbIoControlTransfer (
IN EFI_USB_IO_PROTOCOL *This,
IN EFI_USB_DEVICE_REQUEST *Request,
IN EFI_USB_DATA_DIRECTION Direction,
IN UINT32 Timeout,
IN OUT VOID *Data, OPTIONAL
IN UINTN DataLength, OPTIONAL
OUT UINT32 *UsbStatus
)
{
USB_DEVICE *Dev;
USB_INTERFACE *UsbIf;
USB_ENDPOINT_DESC *EpDesc;
EFI_TPL OldTpl;
EFI_STATUS Status;
UINTN RequestedDataLength;
if (UsbStatus == NULL) {
return EFI_INVALID_PARAMETER;
}
OldTpl = gBS->RaiseTPL (USB_BUS_TPL);
UsbIf = USB_INTERFACE_FROM_USBIO (This);
Dev = UsbIf->Device;
RequestedDataLength = DataLength;
Status = UsbHcControlTransfer (
Dev->Bus,
Dev->Address,
Dev->Speed,
Dev->MaxPacket0,
Request,
Direction,
Data,
&DataLength,
(UINTN) Timeout,
&Dev->Translator,
UsbStatus
);
//
// If the request completed sucessfully and the Direction of the request is
// EfiUsbDataIn or EfiUsbDataOut, then make sure the actual number of bytes
// transfered is the same as the number of bytes requested. If a different
// number of bytes were transfered, then return EFI_DEVICE_ERROR.
//
if (!EFI_ERROR(Status)) {
if (Direction != EfiUsbNoData && DataLength != RequestedDataLength) {
Status = EFI_DEVICE_ERROR;
goto ON_EXIT;
}
}
if (EFI_ERROR(Status) || (*UsbStatus != EFI_USB_NOERROR)) {
//
// Clear TT buffer when CTRL/BULK split transaction failes
// Clear the TRANSLATOR TT buffer, not parent's buffer
//
ASSERT (Dev->Translator.TranslatorHubAddress < Dev->Bus->MaxDevices);
if (Dev->Translator.TranslatorHubAddress != 0) {
UsbHubCtrlClearTTBuffer (
Dev->Bus->Devices[Dev->Translator.TranslatorHubAddress],
Dev->Translator.TranslatorPortNumber,
Dev->Address,
0,
USB_ENDPOINT_CONTROL
);
}
goto ON_EXIT;
}
//
// Some control transfer will change the device's internal
// status, such as Set_Configuration and Set_Interface.
// We must synchronize the bus driver's status with that in
// device. We ignore the Set_Descriptor request because it's
// hardly used by any device, especially in pre-boot environment
//
//
// Reset the endpoint toggle when endpoint stall is cleared
//
if ((Request->Request == USB_REQ_CLEAR_FEATURE) &&
(Request->RequestType == USB_REQUEST_TYPE (EfiUsbNoData, USB_REQ_TYPE_STANDARD,
USB_TARGET_ENDPOINT)) &&
(Request->Value == USB_FEATURE_ENDPOINT_HALT)) {
EpDesc = UsbGetEndpointDesc (UsbIf, (UINT8) Request->Index);
if (EpDesc != NULL) {
EpDesc->Toggle = 0;
}
}
//
// Select a new configuration. This is a dangerous action. Upper driver
// should stop use its current UsbIo after calling this driver. The old
// UsbIo will be uninstalled and new UsbIo be installed. We can't use
// ReinstallProtocol since interfaces in different configuration may be
// completely irrelevant.
//
if ((Request->Request == USB_REQ_SET_CONFIG) &&
(Request->RequestType == USB_REQUEST_TYPE (EfiUsbNoData, USB_REQ_TYPE_STANDARD,
USB_TARGET_DEVICE))) {
//
// Don't re-create the USB interfaces if configuration isn't changed.
//
if ((Dev->ActiveConfig != NULL) &&
(Request->Value == Dev->ActiveConfig->Desc.ConfigurationValue)) {
goto ON_EXIT;
}
// DEBUG ((EFI_D_INFO, "UsbIoControlTransfer: configure changed!!! Do NOT use old UsbIo!!!\n"));
if (Dev->ActiveConfig != NULL) {
UsbRemoveConfig (Dev);
}
if (Request->Value != 0) {
Status = UsbSelectConfig (Dev, (UINT8) Request->Value);
}
//
// Exit now, Old USB_IO is invalid now
//
goto ON_EXIT;
}
//
// A new alternative setting is selected for the interface.
// No need to reinstall UsbIo in this case because only
// underlying communication endpoints are changed. Functionality
// should remains the same.
//
if ((Request->Request == USB_REQ_SET_INTERFACE) &&
(Request->RequestType == USB_REQUEST_TYPE (EfiUsbNoData, USB_REQ_TYPE_STANDARD,
USB_TARGET_INTERFACE)) &&
(Request->Index == UsbIf->IfSetting->Desc.InterfaceNumber)) {
Status = UsbSelectSetting (UsbIf->IfDesc, (UINT8) Request->Value);
if (!EFI_ERROR(Status)) {
ASSERT (UsbIf->IfDesc->ActiveIndex < USB_MAX_INTERFACE_SETTING);
UsbIf->IfSetting = UsbIf->IfDesc->Settings[UsbIf->IfDesc->ActiveIndex];
}
}
ON_EXIT:
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
Execute a bulk transfer to the device endpoint.
@param This The USB IO instance.
@param Endpoint The device endpoint.
@param Data The data to transfer.
@param DataLength The length of the data to transfer.
@param Timeout Time to wait before timeout.
@param UsbStatus The result of USB transfer.
@retval EFI_SUCCESS The bulk transfer is OK.
@retval EFI_INVALID_PARAMETER Some parameters are invalid.
@retval Others Failed to execute transfer, reason returned in
UsbStatus.
**/
EFI_STATUS
EFIAPI
UsbIoBulkTransfer (
IN EFI_USB_IO_PROTOCOL *This,
IN UINT8 Endpoint,
IN OUT VOID *Data,
IN OUT UINTN *DataLength,
IN UINTN Timeout,
OUT UINT32 *UsbStatus
)
{
USB_DEVICE *Dev;
USB_INTERFACE *UsbIf;
USB_ENDPOINT_DESC *EpDesc;
UINT8 BufNum;
UINT8 Toggle;
EFI_TPL OldTpl;
EFI_STATUS Status;
if ((USB_ENDPOINT_ADDR (Endpoint) == 0) || (USB_ENDPOINT_ADDR(Endpoint) > 15) ||
(UsbStatus == NULL)) {
return EFI_INVALID_PARAMETER;
}
OldTpl = gBS->RaiseTPL (USB_BUS_TPL);
UsbIf = USB_INTERFACE_FROM_USBIO (This);
Dev = UsbIf->Device;
EpDesc = UsbGetEndpointDesc (UsbIf, Endpoint);
if ((EpDesc == NULL) || (USB_ENDPOINT_TYPE (&EpDesc->Desc) != USB_ENDPOINT_BULK)) {
Status = EFI_INVALID_PARAMETER;
goto ON_EXIT;
}
BufNum = 1;
Toggle = EpDesc->Toggle;
Status = UsbHcBulkTransfer (
Dev->Bus,
Dev->Address,
Endpoint,
Dev->Speed,
EpDesc->Desc.MaxPacketSize,
BufNum,
Data,
DataLength,
&Toggle,
Timeout,
&Dev->Translator,
UsbStatus
);
EpDesc->Toggle = Toggle;
if (EFI_ERROR(Status) || (*UsbStatus != EFI_USB_NOERROR)) {
//
// Clear TT buffer when CTRL/BULK split transaction failes.
// Clear the TRANSLATOR TT buffer, not parent's buffer
//
// ASSERT (Dev->Translator.TranslatorHubAddress < Dev->Bus->MaxDevices);
if (Dev->Translator.TranslatorHubAddress != 0) {
UsbHubCtrlClearTTBuffer (
Dev->Bus->Devices[Dev->Translator.TranslatorHubAddress],
Dev->Translator.TranslatorPortNumber,
Dev->Address,
0,
USB_ENDPOINT_BULK
);
}
}
ON_EXIT:
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
Execute a synchronous interrupt transfer.
@param This The USB IO instance.
@param Endpoint The device endpoint.
@param Data The data to transfer.
@param DataLength The length of the data to transfer.
@param Timeout Time to wait before timeout.
@param UsbStatus The result of USB transfer.
@retval EFI_SUCCESS The synchronous interrupt transfer is OK.
@retval EFI_INVALID_PARAMETER Some parameters are invalid.
@retval Others Failed to execute transfer, reason returned in
UsbStatus.
**/
EFI_STATUS
EFIAPI
UsbIoSyncInterruptTransfer (
IN EFI_USB_IO_PROTOCOL *This,
IN UINT8 Endpoint,
IN OUT VOID *Data,
IN OUT UINTN *DataLength,
IN UINTN Timeout,
OUT UINT32 *UsbStatus
)
{
USB_DEVICE *Dev;
USB_INTERFACE *UsbIf;
USB_ENDPOINT_DESC *EpDesc;
EFI_TPL OldTpl;
UINT8 Toggle;
EFI_STATUS Status;
if ((USB_ENDPOINT_ADDR (Endpoint) == 0) || (USB_ENDPOINT_ADDR(Endpoint) > 15) ||
(UsbStatus == NULL)) {
return EFI_INVALID_PARAMETER;
}
OldTpl = gBS->RaiseTPL (USB_BUS_TPL);
UsbIf = USB_INTERFACE_FROM_USBIO (This);
Dev = UsbIf->Device;
EpDesc = UsbGetEndpointDesc (UsbIf, Endpoint);
if ((EpDesc == NULL) || (USB_ENDPOINT_TYPE (&EpDesc->Desc) != USB_ENDPOINT_INTERRUPT)) {
Status = EFI_INVALID_PARAMETER;
goto ON_EXIT;
}
Toggle = EpDesc->Toggle;
Status = UsbHcSyncInterruptTransfer (
Dev->Bus,
Dev->Address,
Endpoint,
Dev->Speed,
EpDesc->Desc.MaxPacketSize,
Data,
DataLength,
&Toggle,
Timeout,
&Dev->Translator,
UsbStatus
);
EpDesc->Toggle = Toggle;
ON_EXIT:
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
Queue a new asynchronous interrupt transfer, or remove the old
request if (IsNewTransfer == FALSE).
@param This The USB_IO instance.
@param Endpoint The device endpoint.
@param IsNewTransfer Whether this is a new request, if it's old, remove
the request.
@param PollInterval The interval to poll the transfer result, (in ms).
@param DataLength The length of perodic data transfer.
@param Callback The function to call periodicaly when transfer is
ready.
@param Context The context to the callback.
@retval EFI_SUCCESS New transfer is queued or old request is removed.
@retval EFI_INVALID_PARAMETER Some parameters are invalid.
@retval Others Failed to queue the new request or remove the old
request.
**/
EFI_STATUS
EFIAPI
UsbIoAsyncInterruptTransfer (
IN EFI_USB_IO_PROTOCOL *This,
IN UINT8 Endpoint,
IN BOOLEAN IsNewTransfer,
IN UINTN PollInterval, OPTIONAL
IN UINTN DataLength, OPTIONAL
IN EFI_ASYNC_USB_TRANSFER_CALLBACK Callback, OPTIONAL
IN VOID *Context OPTIONAL
)
{
USB_DEVICE *Dev;
USB_INTERFACE *UsbIf;
USB_ENDPOINT_DESC *EpDesc;
EFI_TPL OldTpl;
UINT8 Toggle;
EFI_STATUS Status;
if ((USB_ENDPOINT_ADDR (Endpoint) == 0) || (USB_ENDPOINT_ADDR (Endpoint) > 15)) {
return EFI_INVALID_PARAMETER;
}
OldTpl = gBS->RaiseTPL (USB_BUS_TPL);
UsbIf = USB_INTERFACE_FROM_USBIO (This);
Dev = UsbIf->Device;
EpDesc = UsbGetEndpointDesc (UsbIf, Endpoint);
if ((EpDesc == NULL) || (USB_ENDPOINT_TYPE (&EpDesc->Desc) != USB_ENDPOINT_INTERRUPT)) {
Status = EFI_INVALID_PARAMETER;
goto ON_EXIT;
}
Toggle = EpDesc->Toggle;
Status = UsbHcAsyncInterruptTransfer (
Dev->Bus,
Dev->Address,
Endpoint,
Dev->Speed,
EpDesc->Desc.MaxPacketSize,
IsNewTransfer,
&Toggle,
PollInterval,
DataLength,
&Dev->Translator,
Callback,
Context
);
EpDesc->Toggle = Toggle;
ON_EXIT:
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
Execute a synchronous isochronous transfer.
@param This The USB IO instance.
@param DeviceEndpoint The device endpoint.
@param Data The data to transfer.
@param DataLength The length of the data to transfer.
@param UsbStatus The result of USB transfer.
@retval EFI_UNSUPPORTED Currently isochronous transfer isn't supported.
**/
EFI_STATUS
EFIAPI
UsbIoIsochronousTransfer (
IN EFI_USB_IO_PROTOCOL *This,
IN UINT8 DeviceEndpoint,
IN OUT VOID *Data,
IN UINTN DataLength,
OUT UINT32 *Status
)
{
return EFI_UNSUPPORTED;
}
/**
Queue an asynchronous isochronous transfer.
@param This The USB_IO instance.
@param DeviceEndpoint The device endpoint.
@param Data The data to transfer.
@param DataLength The length of perodic data transfer.
@param IsochronousCallBack The function to call periodicaly when transfer is
ready.
@param Context The context to the callback.
@retval EFI_UNSUPPORTED Currently isochronous transfer isn't supported.
**/
EFI_STATUS
EFIAPI
UsbIoAsyncIsochronousTransfer (
IN EFI_USB_IO_PROTOCOL *This,
IN UINT8 DeviceEndpoint,
IN OUT VOID *Data,
IN UINTN DataLength,
IN EFI_ASYNC_USB_TRANSFER_CALLBACK IsochronousCallBack,
IN VOID *Context OPTIONAL
)
{
return EFI_UNSUPPORTED;
}
/**
Retrieve the device descriptor of the device.
@param This The USB IO instance.
@param Descriptor The variable to receive the device descriptor.
@retval EFI_SUCCESS The device descriptor is returned.
@retval EFI_INVALID_PARAMETER The parameter is invalid.
**/
EFI_STATUS
EFIAPI
UsbIoGetDeviceDescriptor (
IN EFI_USB_IO_PROTOCOL *This,
OUT EFI_USB_DEVICE_DESCRIPTOR *Descriptor
)
{
USB_DEVICE *Dev;
USB_INTERFACE *UsbIf;
EFI_TPL OldTpl;
if (Descriptor == NULL) {
return EFI_INVALID_PARAMETER;
}
OldTpl = gBS->RaiseTPL (USB_BUS_TPL);
UsbIf = USB_INTERFACE_FROM_USBIO (This);
Dev = UsbIf->Device;
CopyMem(Descriptor, &Dev->DevDesc->Desc, sizeof (EFI_USB_DEVICE_DESCRIPTOR));
gBS->RestoreTPL (OldTpl);
return EFI_SUCCESS;
}
/**
Return the configuration descriptor of the current active configuration.
@param This The USB IO instance.
@param Descriptor The USB configuration descriptor.
@retval EFI_SUCCESS The active configuration descriptor is returned.
@retval EFI_INVALID_PARAMETER Some parameter is invalid.
@retval EFI_NOT_FOUND Currently no active configuration is selected.
**/
EFI_STATUS
EFIAPI
UsbIoGetActiveConfigDescriptor (
IN EFI_USB_IO_PROTOCOL *This,
OUT EFI_USB_CONFIG_DESCRIPTOR *Descriptor
)
{
USB_DEVICE *Dev;
USB_INTERFACE *UsbIf;
EFI_STATUS Status;
EFI_TPL OldTpl;
if (Descriptor == NULL) {
return EFI_INVALID_PARAMETER;
}
Status = EFI_SUCCESS;
OldTpl = gBS->RaiseTPL (USB_BUS_TPL);
UsbIf = USB_INTERFACE_FROM_USBIO (This);
Dev = UsbIf->Device;
if (Dev->ActiveConfig == NULL) {
Status = EFI_NOT_FOUND;
goto ON_EXIT;
}
CopyMem(Descriptor, &(Dev->ActiveConfig->Desc), sizeof (EFI_USB_CONFIG_DESCRIPTOR));
ON_EXIT:
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
Retrieve the active interface setting descriptor for this USB IO instance.
@param This The USB IO instance.
@param Descriptor The variable to receive active interface setting.
@retval EFI_SUCCESS The active interface setting is returned.
@retval EFI_INVALID_PARAMETER Some parameter is invalid.
**/
EFI_STATUS
EFIAPI
UsbIoGetInterfaceDescriptor (
IN EFI_USB_IO_PROTOCOL *This,
OUT EFI_USB_INTERFACE_DESCRIPTOR *Descriptor
)
{
USB_INTERFACE *UsbIf;
EFI_TPL OldTpl;
if (Descriptor == NULL) {
return EFI_INVALID_PARAMETER;
}
OldTpl = gBS->RaiseTPL (USB_BUS_TPL);
UsbIf = USB_INTERFACE_FROM_USBIO (This);
CopyMem(Descriptor, &(UsbIf->IfSetting->Desc), sizeof (EFI_USB_INTERFACE_DESCRIPTOR));
gBS->RestoreTPL (OldTpl);
return EFI_SUCCESS;
}
/**
Retrieve the endpoint descriptor from this interface setting.
@param This The USB IO instance.
@param Index The index (start from zero) of the endpoint to
retrieve.
@param Descriptor The variable to receive the descriptor.
@retval EFI_SUCCESS The endpoint descriptor is returned.
@retval EFI_INVALID_PARAMETER Some parameter is invalid.
**/
EFI_STATUS
EFIAPI
UsbIoGetEndpointDescriptor (
IN EFI_USB_IO_PROTOCOL *This,
IN UINT8 Index,
OUT EFI_USB_ENDPOINT_DESCRIPTOR *Descriptor
)
{
USB_INTERFACE *UsbIf;
EFI_TPL OldTpl;
OldTpl = gBS->RaiseTPL (USB_BUS_TPL);
UsbIf = USB_INTERFACE_FROM_USBIO (This);
if ((Descriptor == NULL) || (Index > 15)) {
gBS->RestoreTPL (OldTpl);
return EFI_INVALID_PARAMETER;
}
if (Index >= UsbIf->IfSetting->Desc.NumEndpoints) {
gBS->RestoreTPL (OldTpl);
return EFI_NOT_FOUND;
}
CopyMem(
Descriptor,
&(UsbIf->IfSetting->Endpoints[Index]->Desc),
sizeof (EFI_USB_ENDPOINT_DESCRIPTOR)
);
gBS->RestoreTPL (OldTpl);
return EFI_SUCCESS;
}
/**
Retrieve the supported language ID table from the device.
@param This The USB IO instance.
@param LangIDTable The table to return the language IDs.
@param TableSize The size, in bytes, of the table LangIDTable.
@retval EFI_SUCCESS The language ID is return.
**/
EFI_STATUS
EFIAPI
UsbIoGetSupportedLanguages (
IN EFI_USB_IO_PROTOCOL *This,
OUT UINT16 **LangIDTable,
OUT UINT16 *TableSize
)
{
USB_DEVICE *Dev;
USB_INTERFACE *UsbIf;
EFI_TPL OldTpl;
OldTpl = gBS->RaiseTPL (USB_BUS_TPL);
UsbIf = USB_INTERFACE_FROM_USBIO (This);
Dev = UsbIf->Device;
*LangIDTable = Dev->LangId;
*TableSize = (UINT16) (Dev->TotalLangId * sizeof (UINT16));
gBS->RestoreTPL (OldTpl);
return EFI_SUCCESS;
}
/**
Retrieve an indexed string in the language of LangID.
@param This The USB IO instance.
@param LangID The language ID of the string to retrieve.
@param StringIndex The index of the string.
@param String The variable to receive the string.
@retval EFI_SUCCESS The string is returned.
@retval EFI_NOT_FOUND No such string existed.
**/
EFI_STATUS
EFIAPI
UsbIoGetStringDescriptor (
IN EFI_USB_IO_PROTOCOL *This,
IN UINT16 LangID,
IN UINT8 StringIndex,
OUT CHAR16 **String
)
{
USB_DEVICE *Dev;
USB_INTERFACE *UsbIf;
EFI_USB_STRING_DESCRIPTOR *StrDesc;
EFI_TPL OldTpl;
UINT8 *Buf;
UINT8 Index;
EFI_STATUS Status;
if ((StringIndex == 0) || (LangID == 0)) {
return EFI_NOT_FOUND;
}
OldTpl = gBS->RaiseTPL (USB_BUS_TPL);
UsbIf = USB_INTERFACE_FROM_USBIO (This);
Dev = UsbIf->Device;
//
// Check whether language ID is supported
//
Status = EFI_NOT_FOUND;
for (Index = 0; Index < Dev->TotalLangId; Index++) {
ASSERT (Index < USB_MAX_LANG_ID);
if (Dev->LangId[Index] == LangID) {
break;
}
}
if (Index == Dev->TotalLangId) {
goto ON_EXIT;
}
//
// Retrieve the string descriptor then allocate a buffer
// to hold the string itself.
//
StrDesc = UsbGetOneString (Dev, StringIndex, LangID);
if (StrDesc == NULL) {
goto ON_EXIT;
}
if (StrDesc->Length <= 2) {
goto FREE_STR;
}
Buf = AllocateZeroPool(StrDesc->Length);
if (Buf == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto FREE_STR;
}
CopyMem(Buf, StrDesc->String, StrDesc->Length - 2);
*String = (CHAR16 *) Buf;
Status = EFI_SUCCESS;
FREE_STR:
gBS->FreePool(StrDesc);
ON_EXIT:
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
Reset the device, then if that succeeds, reconfigure the
device with its address and current active configuration.
@param This The USB IO instance.
@retval EFI_SUCCESS The device is reset and configured.
@retval Others Failed to reset the device.
**/
EFI_STATUS
EFIAPI
UsbIoPortReset (
IN EFI_USB_IO_PROTOCOL *This
)
{
USB_INTERFACE *UsbIf;
USB_INTERFACE *HubIf;
USB_DEVICE *Dev;
EFI_TPL OldTpl;
EFI_STATUS Status;
UINT8 DevAddress;
OldTpl = gBS->RaiseTPL (USB_BUS_TPL);
UsbIf = USB_INTERFACE_FROM_USBIO (This);
Dev = UsbIf->Device;
if (UsbIf->IsHub) {
Status = EFI_INVALID_PARAMETER;
goto ON_EXIT;
}
HubIf = Dev->ParentIf;
Status = HubIf->HubApi->ResetPort (HubIf, Dev->ParentPort);
if (EFI_ERROR(Status)) {
// DEBUG (( EFI_D_ERROR, "UsbIoPortReset: failed to reset hub port %d@hub %d, %r \n",
// Dev->ParentPort, Dev->ParentAddr, Status));
DBG("UsbIoPortReset: failed to reset hub port %d@hub %d, %r \n",
Dev->ParentPort, Dev->ParentAddr, Status);
goto ON_EXIT;
}
HubIf->HubApi->ClearPortChange (HubIf, Dev->ParentPort);
//
// Reset the device to its current address. The device now has an address
// of ZERO after port reset, so need to set Dev->Address to the device again for
// host to communicate with it.
//
DevAddress = Dev->Address;
Dev->Address = 0;
Status = UsbSetAddress (Dev, DevAddress);
Dev->Address = DevAddress;
DBG("USB_SET_DEVICE_ADDRESS_STALL\n");
gBS->Stall (USB_SET_DEVICE_ADDRESS_STALL);
if (EFI_ERROR(Status)) {
//
// It may fail due to device disconnection or other reasons.
//
// DEBUG (( EFI_D_ERROR, "UsbIoPortReset: failed to set address for device %d - %r\n",
// Dev->Address, Status));
DBG("UsbIoPortReset: failed to set address for device %d - %r\n",
Dev->Address, Status);
goto ON_EXIT;
}
// DEBUG (( EFI_D_INFO, "UsbIoPortReset: device is now ADDRESSED at %d\n", Dev->Address));
DBG("UsbIoPortReset: device is now ADDRESSED at %d\n", Dev->Address);
//
// Reset the current active configure, after this device
// is in CONFIGURED state.
//
if (Dev->ActiveConfig != NULL) {
Status = UsbSetConfig (Dev, Dev->ActiveConfig->Desc.ConfigurationValue);
if (EFI_ERROR(Status)) {
// DEBUG (( EFI_D_ERROR, "UsbIoPortReset: failed to set configure for device %d - %r\n",
// Dev->Address, Status));
DBG( "UsbIoPortReset: failed to set configure for device %d - %r\n",
Dev->Address, Status);
}
}
ON_EXIT:
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
Install Usb Bus Protocol on host controller, and start the Usb bus.
@param This The USB bus driver binding instance.
@param Controller The controller to check.
@param RemainingDevicePath The remaining device patch.
@retval EFI_SUCCESS The controller is controlled by the usb bus.
@retval EFI_ALREADY_STARTED The controller is already controlled by the usb bus.
@retval EFI_OUT_OF_RESOURCES Failed to allocate resources.
**/
EFI_STATUS
EFIAPI
UsbBusBuildProtocol (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
USB_BUS *UsbBus;
USB_DEVICE *RootHub;
USB_INTERFACE *RootIf;
EFI_STATUS Status;
EFI_STATUS Status2;
UsbBus = AllocateZeroPool(sizeof (USB_BUS));
if (UsbBus == NULL) {
return EFI_OUT_OF_RESOURCES;
}
UsbBus->Signature = USB_BUS_SIGNATURE;
UsbBus->HostHandle = Controller;
UsbBus->MaxDevices = USB_MAX_DEVICES;
Status = gBS->OpenProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
(VOID **) &UsbBus->DevicePath,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR(Status)) {
// DEBUG ((EFI_D_ERROR, "UsbBusStart: Failed to open device path %r\n", Status));
DBG("UsbBusStart: Failed to open device path %r\n", Status);
FreePool(UsbBus);
return Status;
}
//
// Get USB_HC2/USB_HC host controller protocol (EHCI/UHCI).
// This is for backward compatibility with EFI 1.x. In UEFI
// 2.x, USB_HC2 replaces USB_HC. We will open both USB_HC2
// and USB_HC because EHCI driver will install both protocols
// (for the same reason). If we don't consume both of them,
// the unconsumed one may be opened by others.
//
Status = gBS->OpenProtocol (
Controller,
&gEfiUsb2HcProtocolGuid,
(VOID **) &(UsbBus->Usb2Hc),
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
Status2 = gBS->OpenProtocol (
Controller,
&gEfiUsbHcProtocolGuid,
(VOID **) &(UsbBus->UsbHc),
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR(Status) && EFI_ERROR(Status2)) {
// DEBUG ((EFI_D_ERROR, "UsbBusStart: Failed to open USB_HC/USB2_HC %r\n", Status));
DBG("UsbBusStart: Failed to open USB_HC/USB2_HC %r\n", Status);
Status = EFI_DEVICE_ERROR;
goto CLOSE_HC;
}
if (!EFI_ERROR(Status)) {
//
// The EFI_USB2_HC_PROTOCOL is produced for XHCI support.
// Then its max supported devices are 256. Otherwise it's 128.
//
if (UsbBus->Usb2Hc->MajorRevision == 0x3) {
UsbBus->MaxDevices = 256;
}
}
DBG("UsbHcReset\n");
UsbHcReset (UsbBus, EFI_USB_HC_RESET_GLOBAL);
DBG("UsbHcSetState\n");
UsbHcSetState (UsbBus, EfiUsbHcStateOperational);
//
// Install an EFI_USB_BUS_PROTOCOL to host controller to identify it.
//
Status = gBS->InstallProtocolInterface (
&Controller,
&gEfiCallerIdGuid,
EFI_NATIVE_INTERFACE,
&UsbBus->BusId
);
if (EFI_ERROR(Status)) {
// DEBUG ((EFI_D_ERROR, "UsbBusStart: Failed to install bus protocol %r\n", Status));
DBG("UsbBusStart: Failed to install bus protocol %r\n", Status);
goto CLOSE_HC;
}
//
// Initial the wanted child device path list, and add first RemainingDevicePath
//
InitializeListHead (&UsbBus->WantedUsbIoDPList);
Status = UsbBusAddWantedUsbIoDP (&UsbBus->BusId, RemainingDevicePath);
// ASSERT (!EFI_ERROR(Status));
if (EFI_ERROR(Status)) {
goto UNINSTALL_USBBUS;
}
//
// Create a fake usb device for root hub
//
RootHub = AllocateZeroPool(sizeof (USB_DEVICE));
if (RootHub == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto UNINSTALL_USBBUS;
}
RootIf = AllocateZeroPool(sizeof (USB_INTERFACE));
if (RootIf == NULL) {
FreePool(RootHub);
Status = EFI_OUT_OF_RESOURCES;
goto FREE_ROOTHUB;
}
RootHub->Bus = UsbBus;
RootHub->NumOfInterface = 1;
RootHub->Interfaces[0] = RootIf;
RootHub->Tier = 0;
RootIf->Signature = USB_INTERFACE_SIGNATURE;
RootIf->Device = RootHub;
RootIf->DevicePath = UsbBus->DevicePath;
//
// Report Status Code here since we will enumerate the USB devices
//
/* REPORT_STATUS_CODE_WITH_DEVICE_PATH (
EFI_PROGRESS_CODE,
(EFI_IO_BUS_USB | EFI_IOB_PC_DETECT),
UsbBus->DevicePath
); */
DBG("Start init USB\n");
Status = mUsbRootHubApi.Init (RootIf);
if (EFI_ERROR(Status)) {
// DEBUG ((EFI_D_ERROR, "UsbBusStart: Failed to init root hub %r\n", Status));
DBG("UsbBusStart: Failed to init root hub %r\n", Status);
goto FREE_ROOTHUB;
}
UsbBus->Devices[0] = RootHub;
// DEBUG ((EFI_D_INFO, "UsbBusStart: usb bus started on %p, root hub %p\n", Controller, RootIf));
DBG("UsbBusStart: usb bus started on %p, root hub %p\n", Controller, RootIf);
return EFI_SUCCESS;
FREE_ROOTHUB:
if (RootIf != NULL) {
FreePool(RootIf);
}
if (RootHub != NULL) {
FreePool(RootHub);
}
UNINSTALL_USBBUS:
gBS->UninstallProtocolInterface (Controller, &gEfiCallerIdGuid, &UsbBus->BusId);
CLOSE_HC:
if (UsbBus->Usb2Hc != NULL) {
gBS->CloseProtocol (
Controller,
&gEfiUsb2HcProtocolGuid,
This->DriverBindingHandle,
Controller
);
}
if (UsbBus->UsbHc != NULL) {
gBS->CloseProtocol (
Controller,
&gEfiUsbHcProtocolGuid,
This->DriverBindingHandle,
Controller
);
}
gBS->CloseProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
This->DriverBindingHandle,
Controller
);
FreePool(UsbBus);
// DEBUG ((EFI_D_ERROR, "UsbBusStart: Failed to start bus driver %r\n", Status));
return Status;
}
/**
The USB bus driver entry pointer.
@param ImageHandle The driver image handle.
@param SystemTable The system table.
@return EFI_SUCCESS The component name protocol is installed.
@return Others Failed to init the usb driver.
**/
EFI_STATUS
EFIAPI
UsbBusDriverEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
return EfiLibInstallDriverBindingComponentName2 (
ImageHandle,
SystemTable,
&mUsbBusDriverBinding,
ImageHandle,
&mUsbBusComponentName,
&mUsbBusComponentName2
);
}
/**
Check whether USB bus driver support this device.
@param This The USB bus driver binding protocol.
@param Controller The controller handle to check.
@param RemainingDevicePath The remaining device path.
@retval EFI_SUCCESS The bus supports this controller.
@retval EFI_UNSUPPORTED This device isn't supported.
**/
EFI_STATUS
EFIAPI
UsbBusControllerDriverSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
EFI_DEV_PATH_PTR DevicePathNode;
EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
EFI_USB2_HC_PROTOCOL *Usb2Hc;
EFI_USB_HC_PROTOCOL *UsbHc;
EFI_STATUS Status;
//
// Check whether device path is valid
//
if (RemainingDevicePath != NULL) {
//
// Check if RemainingDevicePath is the End of Device Path Node,
// if yes, go on checking other conditions
//
if (!IsDevicePathEnd (RemainingDevicePath)) {
//
// If RemainingDevicePath isn't the End of Device Path Node,
// check its validation
//
DevicePathNode.DevPath = RemainingDevicePath;
if ((DevicePathNode.DevPath->Type != MESSAGING_DEVICE_PATH) ||
(DevicePathNode.DevPath->SubType != MSG_USB_DP &&
DevicePathNode.DevPath->SubType != MSG_USB_CLASS_DP
&& DevicePathNode.DevPath->SubType != MSG_USB_WWID_DP
)) {
DBG("UsbBus not supported: \n");
return EFI_UNSUPPORTED;
}
}
}
// DBG("UsbBus supported: \n");
//
// Check whether USB_HC2 protocol is installed
//
Status = gBS->OpenProtocol (
Controller,
&gEfiUsb2HcProtocolGuid,
(VOID **) &Usb2Hc,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (Status == EFI_ALREADY_STARTED) {
return EFI_SUCCESS;
}
if (EFI_ERROR(Status)) {
//
// If failed to open USB_HC2, fall back to USB_HC
//
Status = gBS->OpenProtocol (
Controller,
&gEfiUsbHcProtocolGuid,
(VOID **) &UsbHc,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (Status == EFI_ALREADY_STARTED) {
return EFI_SUCCESS;
}
if (EFI_ERROR(Status)) {
return Status;
}
//
// Close the USB_HC used to perform the supported test
//
gBS->CloseProtocol (
Controller,
&gEfiUsbHcProtocolGuid,
This->DriverBindingHandle,
Controller
);
} else {
//
// Close the USB_HC2 used to perform the supported test
//
gBS->CloseProtocol (
Controller,
&gEfiUsb2HcProtocolGuid,
This->DriverBindingHandle,
Controller
);
}
//
// Open the EFI Device Path protocol needed to perform the supported test
//
Status = gBS->OpenProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
(VOID **) &ParentDevicePath,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (Status == EFI_ALREADY_STARTED) {
return EFI_SUCCESS;
}
if (!EFI_ERROR(Status)) {
//
// Close protocol, don't use device path protocol in the Support() function
//
gBS->CloseProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
This->DriverBindingHandle,
Controller
);
return EFI_SUCCESS;
}
return Status;
}
/**
Start to process the controller.
@param This The USB bus driver binding instance.
@param Controller The controller to check.
@param RemainingDevicePath The remaining device patch.
@retval EFI_SUCCESS The controller is controlled by the usb bus.
@retval EFI_ALREADY_STARTED The controller is already controlled by the usb
bus.
@retval EFI_OUT_OF_RESOURCES Failed to allocate resources.
**/
EFI_STATUS
EFIAPI
UsbBusControllerDriverStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
EFI_USB_BUS_PROTOCOL *UsbBusId;
EFI_STATUS Status;
EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
Status = gBS->OpenProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
(VOID **) &ParentDevicePath,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
// ASSERT_EFI_ERROR(Status);
if (EFI_ERROR(Status)) {
DBG("Error started UsbBus status=%r\n", Status);
return EFI_UNSUPPORTED;
}
//
// Report Status Code here since we will initialize the host controller
//
// DBG("Report ParentDevicePath\n");
/* REPORT_STATUS_CODE_WITH_DEVICE_PATH (
EFI_PROGRESS_CODE,
(EFI_IO_BUS_USB | EFI_IOB_PC_INIT),
ParentDevicePath
); */
//
// Locate the USB bus protocol, if it is found, USB bus
// is already started on this controller.
//
Status = gBS->OpenProtocol (
Controller,
&gEfiCallerIdGuid,
(VOID **) &UsbBusId,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR(Status)) {
//
// If first start, build the bus execute environment and install bus protocol
//
DBG("Report build protocol\n");
// REPORT_STATUS_CODE (EFI_PROGRESS_CODE, (EFI_IO_BUS_USB | EFI_P_PC_ENABLE));
Status = UsbBusBuildProtocol (This, Controller, RemainingDevicePath);
if (EFI_ERROR(Status)) {
return Status;
}
//
// Try get the Usb Bus protocol interface again
//
Status = gBS->OpenProtocol (
Controller,
&gEfiCallerIdGuid,
(VOID **) &UsbBusId,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
// ASSERT (!EFI_ERROR(Status));
if (EFI_ERROR(Status)) {
return Status;
}
} else {
//
// USB Bus driver need to control the recursive connect policy of the bus, only those wanted
// usb child device will be recursively connected.
// The RemainingDevicePath indicate the child usb device which user want to fully recursively connecte this time.
// All wanted usb child devices will be remembered by the usb bus driver itself.
// If RemainingDevicePath == NULL, all the usb child devices in the usb bus are wanted devices.
//
// Save the passed in RemainingDevicePath this time
//
if (RemainingDevicePath != NULL) {
if (IsDevicePathEnd (RemainingDevicePath)) {
//
// If RemainingDevicePath is the End of Device Path Node,
// skip enumerate any device and return EFI_SUCESSS
//
return EFI_SUCCESS;
}
}
/* Status = */UsbBusAddWantedUsbIoDP (UsbBusId, RemainingDevicePath);
// ASSERT (!EFI_ERROR(Status));
// DBG("AddWanted status=%r\n", Status);
//
// Ensure all wanted child usb devices are fully recursively connected
//
/* Status = */UsbBusRecursivelyConnectWantedUsbIo (UsbBusId);
// DBG("RecursivelyConnect status=%r\n", Status);
// ASSERT (!EFI_ERROR(Status));
}
// DBG("UsbBus started!\n");
return EFI_SUCCESS;
}
/**
Stop handle the controller by this USB bus driver.
@param This The USB bus driver binding protocol.
@param Controller The controller to release.
@param NumberOfChildren The child of USB bus that opened controller
BY_CHILD.
@param ChildHandleBuffer The array of child handle.
@retval EFI_SUCCESS The controller or children are stopped.
@retval EFI_DEVICE_ERROR Failed to stop the driver.
**/
EFI_STATUS
EFIAPI
UsbBusControllerDriverStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
{
USB_BUS *Bus;
USB_DEVICE *RootHub;
USB_DEVICE *UsbDev;
USB_INTERFACE *RootIf;
USB_INTERFACE *UsbIf;
EFI_USB_BUS_PROTOCOL *BusId;
EFI_USB_IO_PROTOCOL *UsbIo;
EFI_TPL OldTpl;
UINTN Index;
EFI_STATUS Status;
EFI_STATUS ReturnStatus;
Status = EFI_SUCCESS;
if (NumberOfChildren > 0) {
//
// BugBug: Raise TPL to callback level instead of USB_BUS_TPL to avoid TPL conflict
//
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
ReturnStatus = EFI_SUCCESS;
for (Index = 0; Index < NumberOfChildren; Index++) {
Status = gBS->OpenProtocol (
ChildHandleBuffer[Index],
&gEfiUsbIoProtocolGuid,
(VOID **) &UsbIo,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR(Status)) {
//
// It is possible that the child has already been released:
// 1. For combo device, free one device will release others.
// 2. If a hub is released, all devices on its down facing
// ports are released also.
//
continue;
}
UsbIf = USB_INTERFACE_FROM_USBIO (UsbIo);
UsbDev = UsbIf->Device;
ReturnStatus = UsbRemoveDevice (UsbDev);
}
gBS->RestoreTPL (OldTpl);
return ReturnStatus;
}
DEBUG (( EFI_D_INFO, "UsbBusStop: usb bus stopped on %p\n", Controller));
//
// Locate USB_BUS for the current host controller
//
Status = gBS->OpenProtocol (
Controller,
&gEfiCallerIdGuid,
(VOID **) &BusId,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR(Status)) {
return Status;
}
Bus = USB_BUS_FROM_THIS (BusId);
//
// Stop the root hub, then free all the devices
//
// BugBug: Raise TPL to callback level instead of USB_BUS_TPL to avoid TPL conflict
//
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
RootHub = Bus->Devices[0];
RootIf = RootHub->Interfaces[0];
// mUsbRootHubApi.Release (RootIf);
// ASSERT (Bus->MaxDevices <= 256);
if (Bus->MaxDevices > 256) {
Bus->MaxDevices = 1;
}
ReturnStatus = EFI_SUCCESS;
for (Index = 1; Index < Bus->MaxDevices; Index++) {
if (Bus->Devices[Index] != NULL) {
Status = UsbRemoveDevice (Bus->Devices[Index]);
if (EFI_ERROR(Status)) {
ReturnStatus = Status;
}
}
}
gBS->RestoreTPL (OldTpl);
if (!EFI_ERROR(ReturnStatus)) {
mUsbRootHubApi.Release (RootIf);
gBS->FreePool (RootIf);
gBS->FreePool (RootHub);
Status = UsbBusFreeUsbDPList (&Bus->WantedUsbIoDPList);
// ASSERT (!EFI_ERROR(Status));
//
// Uninstall the bus identifier and close USB_HC/USB2_HC protocols
//
gBS->UninstallProtocolInterface (Controller, &gEfiCallerIdGuid, &Bus->BusId);
if (Bus->Usb2Hc != NULL) {
Status = gBS->CloseProtocol (
Controller,
&gEfiUsb2HcProtocolGuid,
This->DriverBindingHandle,
Controller
);
}
if (Bus->UsbHc != NULL) {
Status = gBS->CloseProtocol (
Controller,
&gEfiUsbHcProtocolGuid,
This->DriverBindingHandle,
Controller
);
}
if (!EFI_ERROR(Status)) {
gBS->CloseProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
This->DriverBindingHandle,
Controller
);
gBS->FreePool(Bus);
}
}
return Status;
}
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