136 lines
4.3 KiB
C
136 lines
4.3 KiB
C
/**
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* \file
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*
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* \brief Common API for USB Device Interface
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*
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* Copyright (c) 2009-2015 Atmel Corporation. All rights reserved.
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*
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* \asf_license_start
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*
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* \page License
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. The name of Atmel may not be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* 4. This software may only be redistributed and used in connection with an
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* Atmel microcontroller product.
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*
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* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* \asf_license_stop
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*
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*/
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/*
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* Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
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*/
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#ifndef _UDC_DESC_H_
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#define _UDC_DESC_H_
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#include "conf_usb.h"
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#include "usb_protocol.h"
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#include "udi.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* \ingroup udc_group
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* \defgroup udc_desc_group USB Device Descriptor
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*
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* @{
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*/
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/**
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* \brief Defines the memory's location of USB descriptors
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*
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* By default the Descriptor is stored in RAM
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* (UDC_DESC_STORAGE is defined empty).
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*
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* If you have need to free RAM space,
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* it is possible to put descriptor in flash in following case:
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* - USB driver authorize flash transfer (USBB on UC3 and USB on Mega)
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* - USB Device is not high speed (UDC no need to change USB descriptors)
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*
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* For UC3 application used "const".
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*
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* For Mega application used "code".
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*/
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#define UDC_DESC_STORAGE
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// Descriptor storage in internal RAM
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#if (defined UDC_DATA_USE_HRAM_SUPPORT)
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# if defined(__GNUC__)
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# define UDC_DATA(x) COMPILER_WORD_ALIGNED __attribute__((__section__(".data_hram0")))
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# define UDC_BSS(x) COMPILER_ALIGNED(x) __attribute__((__section__(".bss_hram0")))
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# elif defined(__ICCAVR32__)
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# define UDC_DATA(x) COMPILER_ALIGNED(x) __data32
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# define UDC_BSS(x) COMPILER_ALIGNED(x) __data32
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# endif
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#else
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# define UDC_DATA(x) COMPILER_ALIGNED(x)
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# define UDC_BSS(x) COMPILER_ALIGNED(x)
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#endif
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/**
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* \brief Configuration descriptor and UDI link for one USB speed
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*/
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typedef struct {
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//! USB configuration descriptor
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usb_conf_desc_t UDC_DESC_STORAGE *desc;
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//! Array of UDI API pointer
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udi_api_t UDC_DESC_STORAGE *UDC_DESC_STORAGE * udi_apis;
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} udc_config_speed_t;
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/**
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* \brief All information about the USB Device
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*/
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typedef struct {
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//! USB device descriptor for low or full speed
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usb_dev_desc_t UDC_DESC_STORAGE *confdev_lsfs;
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//! USB configuration descriptor and UDI API pointers for low or full speed
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udc_config_speed_t UDC_DESC_STORAGE *conf_lsfs;
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#ifdef USB_DEVICE_HS_SUPPORT
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//! USB device descriptor for high speed
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usb_dev_desc_t UDC_DESC_STORAGE *confdev_hs;
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//! USB device qualifier, only use in high speed mode
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usb_dev_qual_desc_t UDC_DESC_STORAGE *qualifier;
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//! USB configuration descriptor and UDI API pointers for high speed
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udc_config_speed_t UDC_DESC_STORAGE *conf_hs;
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#endif
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usb_dev_bos_desc_t UDC_DESC_STORAGE *conf_bos;
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} udc_config_t;
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//! Global variables of USB Device Descriptor and UDI links
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extern UDC_DESC_STORAGE udc_config_t udc_config;
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//@}
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#ifdef __cplusplus
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}
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#endif
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#endif // _UDC_DESC_H_
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