/*------------------------------------------------------------------------------
--  This file is a part of the libuc, microcontroler library
--  Copyright (C) 2011, Alexis Jeandet
--
--  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 3 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 
-------------------------------------------------------------------------------
--                 Author : Alexis Jeandet
--                   Mail : alexis.jeandet@gmail.com
-------------------------------------------------------------------------------*/
#ifndef SSP_H
#define SSP_H

#include "LPC23xx.h"
#include <uhandle.h>


#define l4bits ((1<<1)+(1))               //0011 4 bit transfer
#define l5bits ((1<<2))                   //0100 5 bit transfer
#define l6bits ((1<<2)+(1))               //0101 6 bit transfer
#define l7bits ((1<<1)+(1<<1))            //0110 7 bit transfer
#define l8bits ((1<<2)+(1<<1)+(1))        //0111 8 bit transfer
#define l9bits ((1<<3))                   //1000 9 bit transfer
#define l10bits ((1<<3)+(1))               //1001 10 bit transfer
#define l11bits ((1<<3)+(1<<1))            //1010 11 bit transfer
#define l12bits ((1<<3)+(1<<1)+1)          //1011 12 bit transfer
#define l13bits ((1<<3)+(1<<2))            //1100 13 bit transfer
#define l14bits ((1<<3)+(1<<2)+1)          //1101 14 bit transfer
#define l15bits ((1<<3)+(1<<2)+(1<<1))     //1110 15 bit transfer
#define l16bits ((1<<3)+(1<<2)+(1<<1)+1)   //1111 16 bit transfer

#define FFSPI  0
#define FFTI (1<<4)
#define FFMICROWIRE (1<<5)

#define CLKINHLOW 0
#define CLKINHHIGH (1<<6)

#define CKfirstEdge 0
#define CKsecondEdge (1<<7)



#define loopbackOFF 0
#define loopbackON 1

#define MASTERMODE 0
#define SLAVEMODE (1<<2)

#define SLAVEOUTPUTDISABLEMODE (1<<3)

#define sspisslave(dev)  ((((((_sspDev)dev))->SSPCtrlReg1>>2) & 1)==1)

struct sspRegs
{
 unsigned long SSPCtrlReg0; 
 unsigned long SSPCtrlReg1;
 unsigned long SSPDataReg;
 unsigned long SSPStatReg; 
 unsigned long SSPClkPrescReg;
 unsigned long SSPIntMaskReg;
 unsigned long SSPRawIntStatReg;
 unsigned long SSPMaskedIntStatReg;
 unsigned long SSPIntClearReg;
 unsigned long SSPDMACtrlReg;
};

typedef volatile struct sspRegs* _sspDev;
typedef UHANDLE sspDev;

extern sspDev sspopen(int count);
extern void sspputc(sspDev dev,char c);
extern void sspputnc(sspDev dev,const char *c,unsigned int n);
extern void sspputw(sspDev dev,int c);
extern void sspputs(sspDev dev,char *s);
extern void sspgets(sspDev dev,char *s);
extern char sspgetc(sspDev dev);
extern void sspgetnc(sspDev dev,char *c,unsigned int n);
extern int  sspgetw(sspDev dev);
extern void enableSSP(sspDev dev);
extern void disableSSP(sspDev dev);
extern void sspsetup(sspDev dev,unsigned char bitscount,int sspCtrlRegValue0,int sspCtrlRegValue1, unsigned int  dataRate);
extern void sspsetupTRsize(sspDev dev,unsigned char value);
extern unsigned char sspgetpclkfactor(sspDev dev);
extern void sspsetpclkfactor(sspDev dev,unsigned char pclkfactor);
extern void sspsetdatarate(sspDev dev,unsigned int  dataRate);

#endif