UsbHub.h revision 4fd606d1f5abe38e1f42c38de1d2e895166bd0f4
/** @file
The definition for USB hub.
Copyright (c) 2007 - 2010, 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
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 _USB_HUB_H_
#define _USB_HUB_H_
#include <IndustryStandard/Usb.h>
#define USB_DESC_TYPE_HUB 0x29
#define USB_DESC_TYPE_HUB_SUPER_SPEED 0x2a
//
// Hub class control transfer target
//
#define USB_HUB_TARGET_HUB 0
#define USB_HUB_TARGET_PORT 3
//
// HUB class specific contrl transfer request type
//
#define USB_HUB_REQ_GET_STATUS 0
#define USB_HUB_REQ_CLEAR_FEATURE 1
#define USB_HUB_REQ_SET_FEATURE 3
#define USB_HUB_REQ_GET_DESC 6
#define USB_HUB_REQ_SET_DESC 7
#define USB_HUB_REQ_CLEAR_TT 8
#define USB_HUB_REQ_RESET_TT 9
#define USB_HUB_REQ_GET_TT_STATE 10
#define USB_HUB_REQ_STOP_TT 11
#define USB_HUB_REQ_SET_DEPTH 12
//
// USB hub class feature selector
//
#define USB_HUB_C_HUB_LOCAL_POWER 0
#define USB_HUB_C_HUB_OVER_CURRENT 1
#define USB_HUB_PORT_CONNECTION 0
#define USB_HUB_PORT_ENABLE 1
#define USB_HUB_PORT_SUSPEND 2
#define USB_HUB_PORT_OVER_CURRENT 3
#define USB_HUB_PORT_RESET 4
#define USB_HUB_PORT_LINK_STATE 5
#define USB_HUB_PORT_POWER 8
#define USB_HUB_PORT_LOW_SPEED 9
#define USB_HUB_C_PORT_CONNECT 16
#define USB_HUB_C_PORT_ENABLE 17
#define USB_HUB_C_PORT_SUSPEND 18
#define USB_HUB_C_PORT_OVER_CURRENT 19
#define USB_HUB_C_PORT_RESET 20
#define USB_HUB_PORT_TEST 21
#define USB_HUB_PORT_INDICATOR 22
#define USB_HUB_C_PORT_LINK_STATE 25
#define USB_HUB_PORT_REMOTE_WAKE_MASK 27
#define USB_HUB_BH_PORT_RESET 28
#define USB_HUB_C_BH_PORT_RESET 29
//
// Constant value for Port Status & Port Change Status of SuperSpeed port
//
#define USB_SS_PORT_STAT_C_BH_RESET 0x0020
#define USB_SS_PORT_STAT_C_PORT_LINK_STATE 0x0040
//
// USB hub power control method. In gang power control
//
#define USB_HUB_GANG_POWER_CTRL 0
#define USB_HUB_PORT_POWER_CTRL 0x01
//
// USB hub status bits
//
#define USB_HUB_STAT_LOCAL_POWER 0x01
#define USB_HUB_STAT_OVER_CURRENT 0x02
#define USB_HUB_STAT_C_LOCAL_POWER 0x01
#define USB_HUB_STAT_C_OVER_CURRENT 0x02
#define USB_HUB_CLASS_CODE 0x09
#define USB_HUB_SUBCLASS_CODE 0x00
//
// Host software return timeout if port status doesn't change
// after 500ms(LOOP * STALL = 100 * 5ms), set by experience
//
#define USB_WAIT_PORT_STS_CHANGE_LOOP 100
#pragma pack(1)
//
// Hub descriptor, the last two fields are of variable lenght.
//
typedef struct {
typedef struct {
#pragma pack()
typedef struct {
/**
uses this hub as translator.Remember to clear the TT
buffer of transaction translator, not that of the
parent.
@param UsbDev The Usb device.
@param Port The port of the hub.
@param DevAddr Address of the failed transaction.
@param EpNum The endpoint number of the failed transaction.
@param EpType The type of failed transaction.
@retval EFI_SUCCESS The TT buffer is cleared.
@retval Others Failed to clear the TT buffer.
**/
);
/**
Test whether the interface is a hub interface.
@param UsbIf The interface to test.
@retval TRUE The interface is a hub interface.
@retval FALSE The interface isn't a hub interface.
**/
);
/**
Ack the hub change bits. If these bits are not ACKed, Hub will
always return changed bit map from its interrupt endpoint.
@param UsbDev The Usb device.
@retval EFI_SUCCESS The hub change status is ACKed.
@retval Others Failed to ACK the hub status.
**/
);
extern USB_HUB_API mUsbHubApi;
extern USB_HUB_API mUsbRootHubApi;
#endif