/*------------------------------------------------------------------------------
#--  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@member.fsf.org
#-------------------------------------------------------------------------------*/
#include <spi.h>
#include <VS10XX.h>
#include <core.h>
#include <stdio.h>
//#include <bsp.h>

void vs10XXopen(vs10XXDev *codec, spi_t dev, void (*setxCS)(char), void (*setxRST)(char), void (*setxDCS)(char), int (*getDREQ)())
{
    codec->SPIdev = dev;
    codec->setxCS = setxCS;
    codec->setxDCS = setxDCS;
    codec->setxRST = setxRST;
    codec->getDREQ = getDREQ;
    codec->setxDCS(1);
    codec->setxCS(1);
    codec->setxRST(0);
    delay_100us(2);
    codec->setxRST(1);
    int status;
    do{
    status= vs10XXcmdread(codec,VSSTATUS);
    }while (status==0xc);
    printf("Status=0x%x\n",status);
    status = (status>>4) & 0xF;
    switch (status) {
    case 0:
        codec->VERSION = VS1001;
        break;
    case 1:
        codec->VERSION = VS1011;
        break;
    case 2:
        codec->VERSION = VS1002;
        break;
    case 3:
        codec->VERSION = VS1003;
        break;
    case 4:
        codec->VERSION = VS1053;
        break;
    case 5:
        codec->VERSION = VS1033;
        break;
    case 7:
        codec->VERSION = VS1103;
        break;
    default:
        codec->VERSION = UNKNOWN;
        break;
    }
}

void vs10XXsoftreset(vs10XXDev* dev)
{
    vs10XXcmdwrite(dev,VSMODE,(1<<2));
}

void vs10XXsetCansel(vs10XXDev* dev)
{
    int mode=vs10XXcmdread(dev,VSMODE);
    vs10XXcmdwrite(dev,VSMODE,mode|8);
}

void vs10XXsoftReset(vs10XXDev* dev)
{
    int mode=vs10XXcmdread(dev,VSMODE);
    vs10XXcmdwrite(dev,VSMODE,mode|4);
}

int vs10XXcanselAccepted(vs10XXDev* dev)
{
    int mode=vs10XXcmdread(dev,VSMODE);
    return ((mode & 8)!=8);
}

int vs10XXcmdread(vs10XXDev* dev,char address)
{
    int result;
    while(!dev->getDREQ());
    dev->setxCS(0);
    spiputw(dev->SPIdev,3);
    spiputw(dev->SPIdev,address);
    result = (0xFF00 & (spigetw(dev->SPIdev)<<8)) + (0xFF & spigetw(dev->SPIdev));
    dev->setxCS(1);
	return result;
}


void vs10XXcmdwrite(vs10XXDev* dev,char address,int value)
{
    while(!dev->getDREQ());
    dev->setxCS(0);
    spiputw(dev->SPIdev,2<<8);
    spiputw(dev->SPIdev,address);
    spiputw(dev->SPIdev,value>>8);
    spiputw(dev->SPIdev,value);
    dev->setxCS(1);
}


void vs10XXstream32bytes(vs10XXDev* dev,char* buffer)
{
    while(!dev->getDREQ());
    dev->setxCS(1);
    dev->setxDCS(0);
    spiputnc(dev->SPIdev,buffer,32);
    dev->setxDCS(1);

}