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usb communication (device side) refactoring

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* merge cmd.c into usb_cdc.c
* move back usb_cdc.[ch] to common/
* declare low level functions usb_read() and usb_write() and more functions as static
* use cmd_receive() in bootrom.c and appmain.c
* remove unused memory wasting csrTab[100] in usb_cdc.c
* replace more byte_t by uint8_t
* more whitespace fixes
This commit is contained in:
pwpiwi 2020-01-11 22:10:40 +01:00
commit 867e10a5fd
23 changed files with 98 additions and 195 deletions
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50
common/usb_cdc.h Normal file
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/*
* at91sam7s USB CDC device implementation
*
* Copyright (c) 2012, Roel Verdult
* All rights reserved.
*
* 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. Neither the name of the copyright holders nor the
* names of its 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 ''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 HOLDERS 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.
*
* based on the "Basic USB Example" from ATMEL (doc6123.pdf)
*
* @file usb_cdc.c
* @brief
*/
#ifndef USB_CDC_H__
#define USB_CDC_H__
#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>
#include "usb_cmd.h"
extern void usb_disable();
extern void usb_enable();
extern bool usb_poll();
extern bool usb_poll_validate_length();
extern bool cmd_receive(UsbCommand* cmd);
extern bool cmd_send(uint32_t cmd, uint32_t arg0, uint32_t arg1, uint32_t arg2, void* data, size_t len);
#endif // USB_CDC_H__