/* ---------------------------------------------------------------------------- | |
* ATMEL Microcontroller Software Support | |
* ---------------------------------------------------------------------------- | |
* Copyright (c) 2009, 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 disclaimer below. | |
* | |
* Atmel's name may not be used to endorse or promote products derived from | |
* this software without specific prior written permission. | |
* | |
* DISCLAIMER: 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 | |
* 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 _TWID_ | |
#define _TWID_ | |
/*---------------------------------------------------------------------------- | |
* Headers | |
*----------------------------------------------------------------------------*/ | |
#include "chip.h" | |
#include <stdint.h> | |
/*---------------------------------------------------------------------------- | |
* Definition | |
*----------------------------------------------------------------------------*/ | |
/** TWI driver is currently busy. */ | |
#define TWID_ERROR_BUSY 1 | |
#ifdef __cplusplus | |
extern "C" { | |
#endif | |
/*---------------------------------------------------------------------------- | |
* Types | |
*----------------------------------------------------------------------------*/ | |
/** \brief TWI driver structure. Holds the internal state of the driver.*/ | |
typedef struct _Twid | |
{ | |
/** Pointer to the underlying TWI peripheral.*/ | |
Twi *pTwi ; | |
/** Current asynchronous transfer being processed.*/ | |
Async *pTransfer ; | |
} Twid; | |
/*---------------------------------------------------------------------------- | |
* Export functions | |
*----------------------------------------------------------------------------*/ | |
extern void TWID_Initialize( Twid *pTwid, Twi *pTwi ) ; | |
extern void TWID_Handler( Twid *pTwid ) ; | |
extern uint8_t TWID_Read( | |
Twid *pTwid, | |
uint8_t address, | |
uint32_t iaddress, | |
uint8_t isize, | |
uint8_t *pData, | |
uint32_t num, | |
Async *pAsync); | |
extern uint8_t TWID_Write( | |
Twid *pTwid, | |
uint8_t address, | |
uint32_t iaddress, | |
uint8_t isize, | |
uint8_t *pData, | |
uint32_t num, | |
Async *pAsync); | |
#ifdef __cplusplus | |
} | |
#endif | |
#endif //#ifndef TWID_H | |