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/** @file
The definition for USB hub.
Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _USB_HUB_H_
#define _USB_HUB_H_
#include <IndustryStandard/Usb.h>
#define USB_ENDPOINT_ADDR(EpAddr) ((EpAddr) & 0x7F)
#define USB_ENDPOINT_TYPE(Desc) ((Desc)->Attributes & USB_ENDPOINT_TYPE_MASK)
#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 = 5000 * 0.1ms), set by experience
//
#define USB_WAIT_PORT_STS_CHANGE_LOOP 5000
#pragma pack(1)
//
// Hub descriptor, the last two fields are of variable length.
//
typedef struct {
UINT8 Length;
UINT8 DescType;
UINT8 NumPorts;
UINT16 HubCharacter;
UINT8 PwrOn2PwrGood;
UINT8 HubContrCurrent;
UINT8 Filler[16];
} EFI_USB_HUB_DESCRIPTOR;
#pragma pack()
typedef struct {
UINT16 ChangedBit;
EFI_USB_PORT_FEATURE Feature;
} USB_CHANGE_FEATURE_MAP;
/**
Clear the transaction translate buffer if full/low
speed control/bulk transfer failed and the transfer
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.
**/
EFI_STATUS
UsbHubCtrlClearTTBuffer (
IN USB_DEVICE *UsbDev,
IN UINT8 Port,
IN UINT16 DevAddr,
IN UINT16 EpNum,
IN UINT16 EpType
);
/**
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.
**/
BOOLEAN
UsbIsHubInterface (
IN USB_INTERFACE *UsbIf
);
/**
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.
**/
EFI_STATUS
UsbHubAckHubStatus (
IN USB_DEVICE *UsbDev
);
extern USB_HUB_API mUsbHubApi;
extern USB_HUB_API mUsbRootHubApi;
#endif
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