REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3737 Apply uncrustify changes to .c/.h files in the EmbeddedPkg package Cc: Andrew Fish <afish@apple.com> Cc: Leif Lindholm <leif@nuviainc.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com> Reviewed-by: Andrew Fish <afish@apple.com>
		
			
				
	
	
		
			272 lines
		
	
	
		
			8.6 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			272 lines
		
	
	
		
			8.6 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/** @file
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  Copyright (c) 2014, ARM Ltd. All rights reserved.<BR>
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  SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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/*
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 * Implementation of the FASTBOOT_TRANSPORT_PROTOCOL using the USB_DEVICE_PROTOCOL
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 */
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#include <Protocol/UsbDevice.h>
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#include <Protocol/AndroidFastbootTransport.h>
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#include <Protocol/SimpleTextOut.h>
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#include <Library/BaseLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/DebugLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiDriverEntryPoint.h>
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STATIC USB_DEVICE_PROTOCOL  *mUsbDevice;
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// Configuration attributes:
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// bit 7 reserved and must be 1, bit 6 means self-powered.
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#define CONFIG_DESC_ATTRIBUTES  (BIT7 | BIT6)
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#define MAX_PACKET_SIZE_BULK  512
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STATIC USB_DEVICE_PROTOCOL  *mUsbDevice;
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STATIC EFI_EVENT            mReceiveEvent = NULL;
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STATIC LIST_ENTRY           mPacketList;
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// List type for queued received packets
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typedef struct _FASTBOOT_USB_PACKET_LIST {
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  LIST_ENTRY    Link;
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  VOID          *Buffer;
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  UINTN         BufferSize;
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} FASTBOOT_USB_PACKET_LIST;
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/*
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  No string descriptors - all string descriptor members are set to 0
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*/
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STATIC USB_DEVICE_DESCRIPTOR  mDeviceDescriptor = {
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  sizeof (USB_DEVICE_DESCRIPTOR),                  // Length
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  USB_DESC_TYPE_DEVICE,                            // DescriptorType
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  0x0200,                                          // BcdUSB
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  0xFF,                                            // DeviceClass
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  0,                                               // DeviceSubClass
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  0,                                               // DeviceProtocol
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  64,                                              // MaxPacketSize0
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  FixedPcdGet32 (PcdAndroidFastbootUsbVendorId),   // IdVendor
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  FixedPcdGet32 (PcdAndroidFastbootUsbProductId),  // IdProduct
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  0,                                               // BcdDevice
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  0,                                               // StrManufacturer
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  0,                                               // StrProduct
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  0,                                               // StrSerialNumber
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  1                                                // NumConfigurations
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};
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/*
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  We have one configuration, one interface, and two endpoints (one IN, one OUT)
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*/
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// Lazy (compile-time) way to concatenate descriptors to pass to the USB device
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// protocol
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#pragma pack(1)
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typedef struct {
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  USB_CONFIG_DESCRIPTOR       ConfigDescriptor;
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  USB_INTERFACE_DESCRIPTOR    InterfaceDescriptor;
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  USB_ENDPOINT_DESCRIPTOR     EndpointDescriptor1;
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  USB_ENDPOINT_DESCRIPTOR     EndpointDescriptor2;
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} GET_CONFIG_DESCRIPTOR_RESPONSE;
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#pragma pack()
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STATIC GET_CONFIG_DESCRIPTOR_RESPONSE  mGetConfigDescriptorResponse = {
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  {                                          // USB_CONFIG_DESCRIPTOR
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    sizeof (USB_CONFIG_DESCRIPTOR),          // Length;
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    USB_DESC_TYPE_CONFIG,                    // DescriptorType;
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    sizeof (GET_CONFIG_DESCRIPTOR_RESPONSE), // TotalLength;
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    1,                                       // NumInterfaces;
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    1,                                       // ConfigurationValue;
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    0,                                       // Configuration;
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    CONFIG_DESC_ATTRIBUTES,                  // Attributes;
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    0                                        // MaxPower;
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  },
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  {                                    // USB_INTERFACE_DESCRIPTOR
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    sizeof (USB_INTERFACE_DESCRIPTOR), // Length;
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    USB_DESC_TYPE_INTERFACE,           // DescriptorType;
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    0,                                 // InterfaceNumber;
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    0,                                 // AlternateSetting;
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    2,                                 // NumEndpoints;
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    0xFF,                              // InterfaceClass;
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    // Vendor specific interface subclass and protocol codes.
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    // I found these values in the Fastboot code
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    // (in match_fastboot_with_serial in fastboot.c).
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    0x42,                                             // InterfaceSubClass;
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    0x03,                                             // InterfaceProtocol;
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    0                                                 // Interface;
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  },
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  {                                   // USB_ENDPOINT_DESCRIPTOR (In Endpoint)
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    sizeof (USB_ENDPOINT_DESCRIPTOR), // Length;
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    USB_DESC_TYPE_ENDPOINT,           // DescriptorType;
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    1 | BIT7,                         // EndpointAddress;
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    0x2,                              // Attributes;
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    MAX_PACKET_SIZE_BULK,             // MaxPacketSize;
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    16                                // Interval;
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  },
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  {                                   // STATIC USB_ENDPOINT_DESCRIPTOR (Out Endpoint)
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    sizeof (USB_ENDPOINT_DESCRIPTOR), // Length;
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    USB_DESC_TYPE_ENDPOINT,           // DescriptorType;
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    1,                                // EndpointAddress;
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    0x2,                              // Attributes;
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    MAX_PACKET_SIZE_BULK,             // MaxPacketSize;
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    16                                // Interval;
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  }
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};
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STATIC
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VOID
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DataReceived (
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  IN UINTN  Size,
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  IN VOID   *Buffer
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  )
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{
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  FASTBOOT_USB_PACKET_LIST  *NewEntry;
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  NewEntry = AllocatePool (sizeof (*NewEntry));
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  ASSERT (NewEntry != NULL);
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  NewEntry->Buffer     = Buffer;
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  NewEntry->BufferSize = Size;
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  InsertTailList (&mPacketList, &NewEntry->Link);
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  if (mReceiveEvent) {
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    gBS->SignalEvent (mReceiveEvent);
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  }
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}
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STATIC
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VOID
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DataSent (
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  IN UINT8  EndpointIndex
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  )
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{
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  // Don't care.
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}
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/*
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  Set up the transport system for use by Fastboot.
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  e.g. For USB this probably means making the device enumerable.
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*/
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EFI_STATUS
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FastbootTransportUsbStart (
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  EFI_EVENT  ReceiveEvent
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  )
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{
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  GET_CONFIG_DESCRIPTOR_RESPONSE  *Responses;
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  mReceiveEvent = ReceiveEvent;
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  mGetConfigDescriptorResponse.ConfigDescriptor.TotalLength = sizeof (GET_CONFIG_DESCRIPTOR_RESPONSE);
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  Responses                                                 = &mGetConfigDescriptorResponse;
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  InitializeListHead (&mPacketList);
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  return mUsbDevice->Start (&mDeviceDescriptor, (VOID **)&Responses, DataReceived, DataSent);
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}
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/*
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  Function to be called when all Fastboot transactions are finished, to
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  de-initialise the transport system.
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  e.g. A USB OTG system might want to get out of peripheral mode so it can be
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       a USB host.
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*/
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EFI_STATUS
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FastbootTransportUsbStop (
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  VOID
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  )
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{
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  // not yet implemented in USB
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  return EFI_SUCCESS;
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}
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/*
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  Send data. This function can be used both for command responses like "OKAY"
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  and for the data phase (the protocol doesn't describe any situation when the
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   latter might be necessary, but does allow it)
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 */
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EFI_STATUS
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FastbootTransportUsbSend (
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  IN        UINTN      BufferSize,
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  IN  CONST VOID       *Buffer,
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  IN        EFI_EVENT  *FatalErrorEvent
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  )
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{
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  // Current USB protocol is blocking, so ignore FatalErrorEvent
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  return mUsbDevice->Send (1, BufferSize, Buffer);
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}
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/*
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  When the event has been Signalled to say data is available from the host,
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  this function is used to get data. In order to handle the case where several
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  packets are received before ReceiveEvent's notify function is called, packets
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  received are queued, and each call to this function returns the next packet in
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  the queue. It should therefore be called in a loop, the exit condition being a
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  return of EFI_NOT_READY.
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  Parameters:
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    Buffer      - The buffer in which to place data
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    BufferSize  - The size of Buffer in bytes
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  Return EFI_NOT_READY if there is no data available
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*/
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EFI_STATUS
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FastbootTransportUsbReceive (
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  OUT UINTN  *BufferSize,
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  OUT VOID   **Buffer
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  )
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{
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  FASTBOOT_USB_PACKET_LIST  *Entry;
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  if (IsListEmpty (&mPacketList)) {
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    return EFI_NOT_READY;
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  }
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  Entry = (FASTBOOT_USB_PACKET_LIST *)GetFirstNode (&mPacketList);
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  *BufferSize = Entry->BufferSize;
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  *Buffer     = Entry->Buffer;
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  RemoveEntryList (&Entry->Link);
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  FreePool (Entry);
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  return EFI_SUCCESS;
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}
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STATIC FASTBOOT_TRANSPORT_PROTOCOL  mTransportProtocol = {
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  FastbootTransportUsbStart,
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  FastbootTransportUsbStop,
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  FastbootTransportUsbSend,
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  FastbootTransportUsbReceive
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};
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EFI_STATUS
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FastbootTransportUsbEntryPoint (
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  IN EFI_HANDLE        ImageHandle,
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  IN EFI_SYSTEM_TABLE  *SystemTable
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  )
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{
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  EFI_STATUS  Status;
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  // Assume there's only one USB peripheral controller.
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  Status = gBS->LocateProtocol (&gUsbDeviceProtocolGuid, NULL, (VOID **)&mUsbDevice);
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  if (EFI_ERROR (Status)) {
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    return Status;
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  }
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  Status = gBS->InstallProtocolInterface (
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                  &ImageHandle,
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                  &gAndroidFastbootTransportProtocolGuid,
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                  EFI_NATIVE_INTERFACE,
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                  &mTransportProtocol
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                  );
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  return Status;
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}
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