common_arm/usb_cdc.h

   1 /*
   2  * at91sam7s USB CDC device implementation
   3  *
   4  * Copyright (c) 2012, Roel Verdult
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  * notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  * notice, this list of conditions and the following disclaimer in the
  13  * documentation and/or other materials provided with the distribution.
  14  * 3. Neither the name of the copyright holders nor the
  15  * names of its contributors may be used to endorse or promote products
  16  * derived from this software without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
  19  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  20  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  21  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
  22  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  23  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  24  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  25  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  *
  29  * based on the "Basic USB Example" from ATMEL (doc6123.pdf)
  30  *
  31  * @file usb_cdc.c
  32  * @brief
  33  */
  34
  35 #ifndef _USB_CDC_H_
  36 #define _USB_CDC_H_
  37
  38 #include "common.h"
  39 #include "at91sam7s512.h"
  40
  41 void usb_disable(void);
  42 void usb_enable(void);
  43 bool usb_check(void);
  44 bool usb_poll(void);
  45 bool usb_poll_validate_length(void);
  46 uint32_t usb_read(uint8_t *data, size_t len);
  47 int usb_write(const uint8_t *data, const size_t len);
  48 uint32_t usb_read_ng(uint8_t *data, size_t len);
  49
  50 void SetUSBreconnect(int value);
  51 int GetUSBreconnect(void);
  52 void SetUSBconfigured(int value);
  53 int GetUSBconfigured(void);
  54
  55 void AT91F_USB_SendData(AT91PS_UDP pudp, const char *pData, uint32_t length);
  56 void AT91F_USB_SendZlp(AT91PS_UDP pudp);
  57 void AT91F_USB_SendStall(AT91PS_UDP pudp);
  58 void AT91F_CDC_Enumerate(void);
  59
  60 #endif // _USB_CDC_H_