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/**
* \file
*
* \brief Common API for USB Device Interface
*
* Copyright (C) 2009 Atmel Corporation. All rights reserved.
*
* \page License
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. 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.
*
* 3. The name of Atmel may not be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 4. This software may only be redistributed and used in connection with an
* Atmel AVR product.
*
* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL 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 _UDC_DESC_H_
#define _UDC_DESC_H_
#include "conf_usb.h"
#include "usb_protocol.h"
#include "udi.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* \ingroup udc_group
* \defgroup udc_desc_group USB Device Descriptor
*
* @{
*/
/**
* \brief Defines the memory's location of USB descriptors
*
* By default the Descriptor is stored in RAM
* (UDC_DESC_STORAGE is defined empty).
*
* If you have need to free RAM space,
* it is possible to put descriptor in flash in following case:
* - USB driver authorize flash transfer (USBB on UC3 and USB on Mega)
* - USB Device is not high speed (UDC no need to change USB descriptors)
*
* For UC3 application used "const".
*
* For Mega application used "code".
*/
#define UDC_DESC_STORAGE
// Descriptor storage in internal RAM
#if (defined UDC_DATA_USE_HRAM_SUPPORT)
# if defined(__GNUC__)
# define UDC_DATA(x) COMPILER_WORD_ALIGNED __attribute__((__section__(".data_hram0")))
# define UDC_BSS(x) COMPILER_ALIGNED(x) __attribute__((__section__(".bss_hram0")))
# elif defined(__ICCAVR32__)
# define UDC_DATA(x) COMPILER_ALIGNED(x) __data32
# define UDC_BSS(x) COMPILER_ALIGNED(x) __data32
# endif
#else
# define UDC_DATA(x) COMPILER_ALIGNED(x)
# define UDC_BSS(x) COMPILER_ALIGNED(x)
#endif
/**
* \brief Configuration descriptor and UDI link for one USB speed
*/
typedef struct {
//! USB configuration descriptor
usb_conf_desc_t UDC_DESC_STORAGE *desc;
//! Array of UDI API pointer
udi_api_t UDC_DESC_STORAGE *UDC_DESC_STORAGE * udi_apis;
} udc_config_speed_t;
/**
* \brief All information about the USB Device
*/
typedef struct {
//! USB device descriptor for low or full speed
usb_dev_desc_t UDC_DESC_STORAGE *confdev_lsfs;
//! USB configuration descriptor and UDI API pointers for low or full speed
udc_config_speed_t UDC_DESC_STORAGE *conf_lsfs;
#ifdef USB_DEVICE_HS_SUPPORT
//! USB device descriptor for high speed
usb_dev_desc_t UDC_DESC_STORAGE *confdev_hs;
//! USB device qualifier, only use in high speed mode
usb_dev_qual_desc_t UDC_DESC_STORAGE *qualifier;
//! USB configuration descriptor and UDI API pointers for high speed
udc_config_speed_t UDC_DESC_STORAGE *conf_hs;
#endif
} udc_config_t;
//! Global variables of USB Device Descriptor and UDI links
extern UDC_DESC_STORAGE udc_config_t udc_config;
//@}
#ifdef __cplusplus
}
#endif
#endif // _UDC_DESC_H_
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