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/** @file
Defination for the USB mass storage Control/Bulk/Interrupt (CBI) transport,
according to USB Mass Storage Class Control/Bulk/Interrupt (CBI) Transport, Revision 1.1.
Copyright (c) 2007 - 2011, 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.
**/
#ifndef _EFI_USBMASS_CBI_H_
#define _EFI_USBMASS_CBI_H_
extern USB_MASS_TRANSPORT mUsbCbi0Transport;
extern USB_MASS_TRANSPORT mUsbCbi1Transport;
#define USB_CBI_MAX_PACKET_NUM 16
#define USB_CBI_RESET_CMD_LEN 12
//
// USB CBI retry C/B/I transport times, set by experience
//
#define USB_CBI_MAX_RETRY 3
//
// Time to wait for USB CBI reset to complete, set by experience
//
#define USB_CBI_RESET_DEVICE_STALL (50 * USB_MASS_1_MILLISECOND)
//
// USB CBI transport timeout, set by experience
//
#define USB_CBI_RESET_DEVICE_TIMEOUT (1 * USB_MASS_1_SECOND)
typedef struct {
//
// Put Interface at the first field to make it easy to distinguish BOT/CBI Protocol instance
//
EFI_USB_INTERFACE_DESCRIPTOR Interface;
EFI_USB_ENDPOINT_DESCRIPTOR *BulkInEndpoint;
EFI_USB_ENDPOINT_DESCRIPTOR *BulkOutEndpoint;
EFI_USB_ENDPOINT_DESCRIPTOR *InterruptEndpoint;
EFI_USB_IO_PROTOCOL *UsbIo;
} USB_CBI_PROTOCOL;
#pragma pack(1)
typedef struct {
UINT8 Type;
UINT8 Value;
} USB_CBI_STATUS;
#pragma pack()
/**
Initializes USB CBI protocol.
This function initializes the USB mass storage class CBI protocol.
It will save its context which is a USB_CBI_PROTOCOL structure
in the Context if Context isn't NULL.
@param UsbIo The USB I/O Protocol instance
@param Context The buffer to save the context to
@retval EFI_SUCCESS The device is successfully initialized.
@retval EFI_UNSUPPORTED The transport protocol doesn't support the device.
@retval Other The USB CBI initialization fails.
**/
EFI_STATUS
UsbCbiInit (
IN EFI_USB_IO_PROTOCOL *UsbIo,
OUT VOID **Context OPTIONAL
);
/**
Execute USB mass storage command through the CBI0/CBI1 transport protocol.
@param Context The USB CBI Protocol.
@param Cmd The command to transfer to device
@param CmdLen The length of the command
@param DataDir The direction of data transfer
@param Data The buffer to hold the data
@param DataLen The length of the buffer
@param Lun Should be 0, this field for bot only
@param Timeout The time to wait
@param CmdStatus The result of the command execution
@retval EFI_SUCCESS The command is executed successfully.
@retval Other Failed to execute the command
**/
EFI_STATUS
UsbCbiExecCommand (
IN VOID *Context,
IN VOID *Cmd,
IN UINT8 CmdLen,
IN EFI_USB_DATA_DIRECTION DataDir,
IN VOID *Data,
IN UINT32 DataLen,
IN UINT8 Lun,
IN UINT32 Timeout,
OUT UINT32 *CmdStatus
);
/**
Reset the USB mass storage device by CBI protocol.
This function resets the USB mass storage device by CBI protocol.
The reset is defined as a non-data command. Don't use UsbCbiExecCommand
to send the command to device because that may introduce recursive loop.
@param Context The USB CBI protocol
@param ExtendedVerification The flag controlling the rule of reset.
Not used here.
@retval EFI_SUCCESS The device is reset.
@retval Others Failed to reset the device.
**/
EFI_STATUS
UsbCbiResetDevice (
IN VOID *Context,
IN BOOLEAN ExtendedVerification
);
/**
Clean up the CBI protocol's resource.
@param Context The instance of CBI protocol.
@retval EFI_SUCCESS The resource is cleaned up.
**/
EFI_STATUS
UsbCbiCleanUp (
IN VOID *Context
);
#endif
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