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/******************************************************************************

**

** (C) Copyright 2013 DFC Design, s.r.o., Brno, Czech Republic

** Author: Marek Kvas (m.kvas@dspfpga.com)

**

****************************************************************************

**

** This file is part of Xenia Ethernet Example project.

**

** Xenia Ethernet Example project is free software: you can

** redistribute it and/or modify it under the terms of

** the GNU Lesser General Public License as published by the Free

** Software Foundation, either version 3 of the License, or

** (at your option) any later version.

**

** Xenia Ethernet Example project is distributed in the hope that

** it will be useful, but WITHOUT ANY WARRANTY; without even

** the implied warranty of MERCHANTABILITY or FITNESS FOR A

** PARTICULAR PURPOSE.  See the GNU Lesser General Public License

** for more details.

**

** You should have received a copy of the GNU Lesser General Public

** License along with Xenia Ethernet Example project.  If not,

** see <http://www.gnu.org/licenses/>.

*******************************************************************************

**

** This is a wrapper for Xilinx IIC driver in interrupt mode.

**

*******************************************************************************

*/

#ifndef __IIC_WRAP_H__

#define __IIC_WRAP_H__

#include "xiic.h"

struct handler_info {

        int unprocessed_bytes;

        int error;               /* set by interrupt in case of error */

        int finished;    /* marks end of operation - set by interrupt */

        int op_started;  /* marks operation started */

        u32 end_tstmp; /* time when timeout should occur */

        int snd_star;

        int rcv_stat;

        int stat_stat;

};

struct iic_wrap_dev {

        XIic    iic;

        int started;            /* Xiic_start has been called already and no stop has beeen called */

        volatile struct handler_info hi;

};

int iic_wrap_init(struct iic_wrap_dev *dev, u16 IicDeviceId);

int iic_wrap_send_timeout(struct iic_wrap_dev *dev, u8 addr, u8 *tx_msg, int length, int timeout_ms);

int iic_wrap_recv_timeout(struct iic_wrap_dev *dev, u8 addr, u8 *rx_msg, int length, int timeout_ms);

#endif /* __IIC_WRAP_H__ */