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/** @file
Definition 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 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#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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