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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2011 by Amaury Pouly
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef __I2C_IMX233_H__
#define __I2C_IMX233_H__
#include "cpu.h"
#include "system.h"
#include "system-target.h"
#include "i2c.h"
#include "regs/regs-i2c.h"
#define BM_I2C_CTRL1_ALL_IRQ \
BM_OR8(I2C_CTRL1, SLAVE_IRQ, SLAVE_STOP_IRQ, MASTER_LOSS_IRQ, EARLY_TERM_IRQ, \
OVERSIZE_XFER_TERM_IRQ, NO_SLAVE_ACK_IRQ, DATA_ENGINE_CMPLT_IRQ, BUS_FREE_IRQ)
enum imx233_i2c_error_t
{
I2C_SUCCESS = 0,
I2C_ERROR = -1,
I2C_TIMEOUT = -2,
I2C_MASTER_LOSS = -3,
I2C_NO_SLAVE_ACK = -4,
I2C_SLAVE_NAK = -5,
I2C_BUFFER_FULL = -6,
};
void imx233_i2c_init(void);
/* start building a transfer, will acquire an exclusive lock */
void imx233_i2c_begin(void);
/* add stage */
enum imx233_i2c_error_t imx233_i2c_add(bool start, bool transmit, void *buffer, unsigned size, bool stop);
/* end building a transfer and start the transfer */
enum imx233_i2c_error_t imx233_i2c_end(unsigned timeout);
#endif // __I2C_IMX233_H__
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