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/** @file
Copyright (c) 2007, Intel Corporation
All rights reserved. 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.
Module Name:
UsbEnumer.h
Abstract:
USB bus enumeration interface
Revision History
**/
#ifndef _USB_ENUMERATION_H_
#define _USB_ENUMERATION_H_
//
// Advance the byte and bit to the next bit, adjust byte accordingly.
//
#define USB_NEXT_BIT(Byte, Bit) \
do { \
(Bit)++; \
if ((Bit) > 7) { \
(Byte)++; \
(Bit) = 0; \
} \
} while (0)
//
// Common interface used by usb bus enumeration process.
// This interface is defined to mask the difference between
// the root hub and normal hub. So, bus enumeration code
// can be shared by both root hub and normal hub
//
typedef
EFI_STATUS
(*USB_HUB_INIT) (
IN USB_INTERFACE *UsbIf
);
//
// Get the port status. This function is required to
// ACK the port change bits although it will return
// the port changes in PortState. Bus enumeration code
// doesn't need to ACK the port change bits.
//
typedef
EFI_STATUS
(*USB_HUB_GET_PORT_STATUS) (
IN USB_INTERFACE *UsbIf,
IN UINT8 Port,
OUT EFI_USB_PORT_STATUS *PortState
);
typedef
VOID
(*USB_HUB_CLEAR_PORT_CHANGE) (
IN USB_INTERFACE *HubIf,
IN UINT8 Port
);
typedef
EFI_STATUS
(*USB_HUB_SET_PORT_FEATURE) (
IN USB_INTERFACE *UsbIf,
IN UINT8 Port,
IN EFI_USB_PORT_FEATURE Feature
);
typedef
EFI_STATUS
(*USB_HUB_CLEAR_PORT_FEATURE) (
IN USB_INTERFACE *UsbIf,
IN UINT8 Port,
IN EFI_USB_PORT_FEATURE Feature
);
typedef
EFI_STATUS
(*USB_HUB_RESET_PORT) (
IN USB_INTERFACE *UsbIf,
IN UINT8 Port
);
typedef
EFI_STATUS
(*USB_HUB_RELEASE) (
IN USB_INTERFACE *UsbIf
);
struct _USB_HUB_API{
USB_HUB_INIT Init;
USB_HUB_GET_PORT_STATUS GetPortStatus;
USB_HUB_CLEAR_PORT_CHANGE ClearPortChange;
USB_HUB_SET_PORT_FEATURE SetPortFeature;
USB_HUB_CLEAR_PORT_FEATURE ClearPortFeature;
USB_HUB_RESET_PORT ResetPort;
USB_HUB_RELEASE Release;
};
USB_ENDPOINT_DESC*
UsbGetEndpointDesc (
IN USB_INTERFACE *UsbIf,
IN UINT8 EpAddr
);
EFI_STATUS
UsbSelectSetting (
IN USB_INTERFACE_DESC *IfDesc,
IN UINT8 Alternate
);
EFI_STATUS
UsbSelectConfig (
IN USB_DEVICE *Device,
IN UINT8 ConfigIndex
);
VOID
UsbRemoveConfig (
IN USB_DEVICE *Device
);
EFI_STATUS
UsbRemoveDevice (
IN USB_DEVICE *Device
);
VOID
UsbHubEnumeration (
IN EFI_EVENT Event,
IN VOID *Context
);
VOID
EFIAPI
UsbRootHubEnumeration (
IN EFI_EVENT Event,
IN VOID *Context
);
#endif
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