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Diffstat (limited to 'src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Protocol/MmUsbDispatch.h')
| -rw-r--r-- | src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Protocol/MmUsbDispatch.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Protocol/MmUsbDispatch.h b/src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Protocol/MmUsbDispatch.h new file mode 100644 index 0000000000..cf6c22acf9 --- /dev/null +++ b/src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Protocol/MmUsbDispatch.h @@ -0,0 +1,130 @@ +/** @file + MM USB Dispatch Protocol as defined in PI 1.5 Specification + Volume 4 Management Mode Core Interface. + + Provides the parent dispatch service for the USB MMI source generator. + + Copyright (c) 2017, 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. + + @par Revision Reference: + This protocol is from PI Version 1.5. + +**/ + +#ifndef _MM_USB_DISPATCH_H_ +#define _MM_USB_DISPATCH_H_ + +#include <Pi/PiMmCis.h> + +#define EFI_MM_USB_DISPATCH_PROTOCOL_GUID \ + { \ + 0xee9b8d90, 0xc5a6, 0x40a2, {0xbd, 0xe2, 0x52, 0x55, 0x8d, 0x33, 0xcc, 0xa1 } \ + } + +/// +/// USB MMI event types +/// +typedef enum { + UsbLegacy, + UsbWake +} EFI_USB_MMI_TYPE; + +/// +/// The dispatch function's context. +/// +typedef struct { + /// + /// Describes whether this child handler will be invoked in response to a USB legacy + /// emulation event, such as port-trap on the PS/2* keyboard control registers, or to a + /// USB wake event, such as resumption from a sleep state. + /// + EFI_USB_MMI_TYPE Type; + /// + /// The device path is part of the context structure and describes the location of the + /// particular USB host controller in the system for which this register event will occur. + /// This location is important because of the possible integration of several USB host + /// controllers in a system. + /// + EFI_DEVICE_PATH_PROTOCOL *Device; +} EFI_MM_USB_REGISTER_CONTEXT; + +typedef struct _EFI_MM_USB_DISPATCH_PROTOCOL EFI_MM_USB_DISPATCH_PROTOCOL; + +/** + Provides the parent dispatch service for the USB MMI source generator. + + This service registers a function (DispatchFunction) which will be called when the USB- + related MMI specified by RegisterContext has occurred. On return, DispatchHandle + contains a unique handle which may be used later to unregister the function using UnRegister(). + The DispatchFunction will be called with Context set to the same value as was passed into + this function in RegisterContext and with CommBuffer containing NULL and + CommBufferSize containing zero. + + @param[in] This Pointer to the EFI_MM_USB_DISPATCH_PROTOCOL instance. + @param[in] DispatchFunction Function to register for handler when a USB-related MMI occurs. + @param[in] RegisterContext Pointer to the dispatch function's context. + The caller fills this context in before calling + the register function to indicate to the register + function the USB MMI types for which the dispatch + function should be invoked. + @param[out] DispatchHandle Handle generated by the dispatcher to track the function instance. + + @retval EFI_SUCCESS The dispatch function has been successfully + registered and the MMI source has been enabled. + @retval EFI_DEVICE_ERROR The driver was unable to enable the MMI source. + @retval EFI_INVALID_PARAMETER RegisterContext is invalid. The USB MMI type + is not within valid range. + @retval EFI_OUT_OF_RESOURCES There is not enough memory (system or MM) to manage this child. +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_MM_USB_REGISTER)( + IN CONST EFI_MM_USB_DISPATCH_PROTOCOL *This, + IN EFI_MM_HANDLER_ENTRY_POINT DispatchFunction, + IN CONST EFI_MM_USB_REGISTER_CONTEXT *RegisterContext, + OUT EFI_HANDLE *DispatchHandle + ); + +/** + Unregisters a USB service. + + This service removes the handler associated with DispatchHandle so that it will no longer be + called when the USB event occurs. + + @param[in] This Pointer to the EFI_MM_USB_DISPATCH_PROTOCOL instance. + @param[in] DispatchHandle Handle of the service to remove. + + @retval EFI_SUCCESS The dispatch function has been successfully + unregistered and the MMI source has been disabled + if there are no other registered child dispatch + functions for this MMI source. + @retval EFI_INVALID_PARAMETER The DispatchHandle was not valid. +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_MM_USB_UNREGISTER)( + IN CONST EFI_MM_USB_DISPATCH_PROTOCOL *This, + IN EFI_HANDLE DispatchHandle + ); + +/// +/// Interface structure for the MM USB MMI Dispatch Protocol +/// +/// This protocol provides the parent dispatch service for the USB MMI source generator. +/// +struct _EFI_MM_USB_DISPATCH_PROTOCOL { + EFI_MM_USB_REGISTER Register; + EFI_MM_USB_UNREGISTER UnRegister; +}; + +extern EFI_GUID gEfiMmUsbDispatchProtocolGuid; + +#endif + |