/*------------------------------------------------------------------------------
--  This file is a part of the libuc, microcontroler library
--  Copyright (C) 2013, 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 <uart.h>
#include <gpio.h>
#include <stdio.h>



int _uartstrsetpos(streamdevice* device,int pos);
int _uartstrread(streamdevice* device,void* data,int size, int n);
int _uartstrwrite(streamdevice* device,void* data,int size, int n);

streamdevice_ops UART_OPS=
{
    .write = &_uartstrwrite,
    .read  = &_uartstrread,
    .setpos= &_uartstrsetpos,
    .close = NULL
};

uart_t uartopen(int count)
{
    return -1;
}

uart_t uartopenandconfig(int count, uint32_t cfg, uint32_t speed, uint32_t TXpin, uint32_t RXpin, uint32_t RTSpin, uint32_t CTSpin)
{
    uart_t dev= uartopen(count);
    uartsetconfig(dev,cfg,speed);
    uartsetpins(dev,TXpin,RXpin,RTSpin,CTSpin);
    return dev;
}


int uartclose(uart_t uart)
{
    return 1;
}

int uartsetpins(uart_t uart,uint32_t TXpin,uint32_t RXpin,uint32_t RTSpin,uint32_t CTSpin)
{
    if(uart >5)return -1;
    if(uart <0)return -1;
    return 1;
}

int uartsetconfig(uart_t uart, uint32_t cfg, uint32_t speed)
{
    int res=1;
    uartdisable(uart);
    uartsetspeed(uart,speed);
    uartsetparity(uart,cfg & UARTPARITYMASK);
    uartsetdatabits(uart,cfg & UARTBITSMASK);
    uartsetstopbits(uart,cfg & UARTSTOPBITSMASK);
    uartenable(uart);
    return res;
}

int uartenable(uart_t uart)
{
    if((uart<6)&&(uart>=0))
    {
        return 1;
    }
    return -1;
}

int uartdisable(uart_t uart)
{
    if((uart<6)&&(uart>=0))
    {
        return 1;
    }
    return -1;
}

int uartsetspeed(uart_t uart,uint32_t speed)
{
    if((uart<6)&&(uart>=0))
    {
        return 1;
    }
    return -1;
}

int uartsetparity(uart_t uart,uartparity_t parity)
{
    if((uart<6)&&(uart>=0))
    {
        return 1;
    }
    return -1;
}

int uartsetdatabits(uart_t uart,uartbits_t databits)
{
    if((uart<6)&&(uart>=0))
    {
        return 1;
    }
    return -1;
}

int uartsetstopbits(uart_t uart,uartstopbits_t stopbits)
{
    if((uart<6)&&(uart>=0))
    {
        return 1;
    }
    return -1;
}

int uartputc(uart_t uart,char c)
{
    if((uart<6)&&(uart>=0))
    {
        return 1;
    }
    return -1;
}

char uartgetc(uart_t uart)
{
    if((uart<6)&&(uart>=0))
    {
        return 0;
    }
    return -1;
}

int uartputs(uart_t uart,char* s)
{
    while (*s) uartputc(uart,*s++);
    return 1;
}

int uartgets(uart_t uart,char* s)
{
    do
    {
        (*s) =  uartgetc(uart);
    }
    while(*s++);
    return 1;
}

int uartputnc(uart_t uart,char* c,int n)
{
    int l=0;
    while(l<n)
    {
        uartputc(uart,*c++);
        l++;
    }
    return n;
}

int uartgetnc(uart_t uart,char* c,int n)
{
    int l=0;
    while(l<n)
    {
        *c++=uartgetc(uart);
        l++;
    }
    return n;
}

int uartavailiabledata(uart_t uart)
{
    if((uart<6)&&(uart>=0))
    {
            return 1;
    }
    return -1;
}


int _uartstrwrite(streamdevice* device,void* data,int size, int n)
{
    return uartputnc((uart_t) device->_stream,(char*) data,size*n);
}

int _uartstrread(streamdevice* device,void* data,int size, int n)
{
    return uartgetnc((uart_t) device->_stream,(char*) data,size*n);
}

int _uartstrsetpos(streamdevice* device,int pos)
{
    return 1;
}

int uartmkstreamdev(uart_t uart,streamdevice* strdev)
{
    strdev->_stream = (UHANDLE)uart;
    strdev->ops = &UART_OPS;
    strdev->streamPt = 0;
    return 1;
}