usb_standard_request.h

Contiki是一个开源

/* This file has been prepared for Doxygen automatic documentation generation.*/
/*! \file usb_standard_request.h *************************************************
 *
 * \brief
 *      This file contains the USB endpoint 0 management routines corresponding to
 *      the standard enumeration process (refer to chapter 9 of the USB
 *      specification.
 *      This file calls routines of the usb_specific_request.c file for non-standard
 *      request management.
 *      The enumeration parameters (descriptor tables) are contained in the
 *      usb_descriptors.c file.
 *
 * \addtogroup usbdriver
 *
 * \author
 *      Atmel Corporation: http://www.atmel.com \n
 *      Support email: [e-mail]
 *
 ******************************************************************************/
/* Copyright (c) 2008  ATMEL Corporation
   All rights reserved.

   Redistribution and use in source and binary forms, with or without
   modification, are permitted provided that the following conditions are met:

   * Redistributions of source code must retain the above copyright
     notice, this list of conditions and the following disclaimer.
   * Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
     distribution.
   * Neither the name of the copyright holders nor the names of
     contributors may be used to endorse or promote products derived
     from this software without specific prior written permission.

  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef _USB_ENUM_H_
#define _USB_ENUM_H_

//_____ I N C L U D E S ____________________________________________________

#include "usb_task.h"
#include "usb_descriptors.h"

//_____ M A C R O S ________________________________________________________

//_____ S T A N D A R D    D E F I N I T I O N S ___________________________

        // Device State
#define ATTACHED                          0
#define POWERED                           1
#define DEFAULT                           2
#define ADDRESSED                         3
#define CONFIGURED                        4
#define SUSPENDED                         5

#define USB_CONFIG_ATTRIBUTES_RESERVED    0x80
#define USB_CONFIG_BUSPOWERED            (USB_CONFIG_ATTRIBUTES_RESERVED | 0x00)
#define USB_CONFIG_SELFPOWERED           (USB_CONFIG_ATTRIBUTES_RESERVED | 0x40)
#define USB_CONFIG_REMOTEWAKEUP          (USB_CONFIG_ATTRIBUTES_RESERVED | 0x20)

//_____ D E C L A R A T I O N ______________________________________________

   //! @brief Returns true when device connected and correctly enumerated with an host.
   //! The device high level application should tests this before performing any applicative requests
#define Is_device_enumerated()            ((usb_configuration_nb!=0)   ? TRUE : FALSE)
#define Is_device_not_enumerated()        ((usb_configuration_nb!=0)   ? FALSE : TRUE)


void    usb_process_request( void);

extern  U8   usb_configuration_nb;


#endif  // _USB_ENUM_H_