/*****************************************************************************
	Copyright(c) 2009 FCI Inc. All Rights Reserved

	File name : fc8050_i2c.c

	Description : fc8050 host interface

	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 program 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 General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program; if not, write to the Free Software
	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA


	History :
	----------------------------------------------------------------------
*******************************************************************************/

#include "fci_types.h"
#include "fc8050_regs.h"

#define HPIC_READ			0x01	/* read command */
#define HPIC_WRITE			0x02	/* write command */
#define HPIC_AINC			0x04	/* address increment */
#define HPIC_BMODE			0x00	/* byte mode */
#define HPIC_WMODE          0x10		/* word mode */
#define HPIC_LMODE          0x20		/* long mode */
#define HPIC_ENDIAN			0x00	/* little endian */
#define HPIC_CLEAR			0x80	/* currently not used */

#define  CHIP_ADRR       0x58

static int i2c_bulkread(HANDLE hDevice, u8 addr, u8 *data, u16 length)
{
	return 0;
}

static int i2c_bulkwrite(HANDLE hDevice, u8 addr, u8 *data, u16 length)
{
	return 0;
}

static int i2c_dataread(HANDLE hDevice, u8 addr, u8 *data, u16 length)
{
	return i2c_bulkread(hDevice, addr, data, length);
}

int fc8050_i2c_init(HANDLE hDevice, u16 param1, u16 param2)
{
	return BBM_OK;
}

int fc8050_i2c_byteread(HANDLE hDevice, u16 addr, u8 *data)
{
	int res;
	u8 command = HPIC_READ | HPIC_BMODE | HPIC_ENDIAN;
	res  = i2c_bulkwrite(hDevice, BBM_COMMAND_REG, &command, 1);
	res |= i2c_bulkwrite(hDevice, BBM_ADDRESS_REG, (u8 *)&addr, 2);
	res |= i2c_bulkread(hDevice, BBM_DATA_REG, data, 1);

	return res;
}

int fc8050_i2c_wordread(HANDLE hDevice, u16 addr, u16 *data)
{
	int res;
	u8 command = HPIC_READ | HPIC_AINC | HPIC_BMODE | HPIC_ENDIAN;

	if (BBM_SCI_DATA <= addr && BBM_SCI_SYNCRX >= addr)
		command = HPIC_READ | HPIC_WMODE | HPIC_ENDIAN;

	res  = i2c_bulkwrite(hDevice, BBM_COMMAND_REG, &command, 1);
	res |= i2c_bulkwrite(hDevice, BBM_ADDRESS_REG, (u8 *)&addr, 2);
	res |= i2c_bulkread(hDevice, BBM_DATA_REG, (u8 *)data, 2);

	return res;
}

int fc8050_i2c_longread(HANDLE hDevice, u16 addr, u32 *data)
{
	int res;
	u8 command = HPIC_READ | HPIC_AINC | HPIC_BMODE | HPIC_ENDIAN;
	res  = i2c_bulkwrite(hDevice, BBM_COMMAND_REG, &command, 1);
	res |= i2c_bulkwrite(hDevice, BBM_ADDRESS_REG, (u8 *)&addr, 2);
	res |= i2c_bulkread(hDevice, BBM_DATA_REG, (u8 *)data, 4);

	return res;
}

int fc8050_i2c_bulkread(HANDLE hDevice, u16 addr, u8 *data, u16 length)
{
	int res;
	u8 command = HPIC_READ | HPIC_AINC | HPIC_BMODE | HPIC_ENDIAN;
	res  = i2c_bulkwrite(hDevice, BBM_COMMAND_REG, &command, 1);
	res |= i2c_bulkwrite(hDevice, BBM_ADDRESS_REG, (u8 *)&addr, 2);
	res |= i2c_bulkread(hDevice, BBM_DATA_REG, data, length);

	return res;
}

int fc8050_i2c_bytewrite(HANDLE hDevice, u16 addr, u8 data)
{
	int res;
	u8 command = HPIC_WRITE | HPIC_BMODE | HPIC_ENDIAN;
	res  = i2c_bulkwrite(hDevice, BBM_COMMAND_REG, &command, 1);
	res |= i2c_bulkwrite(hDevice, BBM_ADDRESS_REG, (u8 *)&addr, 2);
	res |= i2c_bulkwrite(hDevice, BBM_DATA_REG, (u8 *)&data, 1);

	return res;
}

int fc8050_i2c_wordwrite(HANDLE hDevice, u16 addr, u16 data)
{
	int res;
	u8 command = HPIC_WRITE | HPIC_AINC | HPIC_BMODE | HPIC_ENDIAN;

	if (BBM_SCI_DATA <= addr && BBM_SCI_SYNCRX >= addr)
		command = HPIC_WRITE | HPIC_WMODE | HPIC_ENDIAN;

	res  = i2c_bulkwrite(hDevice, BBM_COMMAND_REG, &command, 1);
	res |= i2c_bulkwrite(hDevice, BBM_ADDRESS_REG, (u8 *)&addr, 2);
	res |= i2c_bulkwrite(hDevice, BBM_DATA_REG, (u8 *)&data, 2);

	return res;
}

int fc8050_i2c_longwrite(HANDLE hDevice, u16 addr, u32 data)
{
	int res;
	u8 command = HPIC_WRITE | HPIC_AINC | HPIC_BMODE | HPIC_ENDIAN;
	res  = i2c_bulkwrite(hDevice, BBM_COMMAND_REG, &command, 1);
	res |= i2c_bulkwrite(hDevice, BBM_ADDRESS_REG, (u8 *)&addr, 2);
	res |= i2c_bulkwrite(hDevice, BBM_DATA_REG, (u8 *)&data, 4);

	return res;
}

int fc8050_i2c_bulkwrite(HANDLE hDevice, u16 addr, u8 *data, u16 length)
{
	int res;
	u8 command = HPIC_WRITE | HPIC_AINC | HPIC_BMODE | HPIC_ENDIAN;
	res  = i2c_bulkwrite(hDevice, BBM_COMMAND_REG, &command, 1);
	res |= i2c_bulkwrite(hDevice, BBM_ADDRESS_REG, (u8 *)&addr, 2);
	res |= i2c_bulkwrite(hDevice, BBM_DATA_REG, data, length);

	return res;
}

int fc8050_i2c_dataread(HANDLE hDevice, u16 addr, u8 *data, u16 length)
{
	int res;
	u8 command = HPIC_READ | HPIC_BMODE | HPIC_ENDIAN;
	res  = i2c_bulkwrite(hDevice, BBM_COMMAND_REG, &command, 1);
	res |= i2c_bulkwrite(hDevice, BBM_ADDRESS_REG, (u8 *)&addr, 2);
	res |= i2c_dataread(hDevice, BBM_DATA_REG, data, length);

	return res;
}

int fc8050_i2c_deinit(HANDLE hDevice)
{
	return BBM_OK;
}