/*------------------------------------------------------------------------------
--  This file is a part of the libuc, microcontroler library
--  Copyright (C) 2012, 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 UART_H
#define UART_H
#include <stdint.h>
#include <uhandle.h>
#include <streamdevices.h>

#ifdef __cplusplus
extern "C" {
#endif

/*
typedef volatile struct uart_t
{
     volatile void* _dev;
     volatile int   cfg;
     volatile int   speed;
}uart_t;
 */

typedef int uart_t;
#define uart1 0
#define uart2 1
#define uart3 2
#define uart4 3
#define uart5 4
#define uart6 5
#define uart7 6
#define uart8 7
#define uart9 8


typedef enum
{ 
    uartparitynone = 0x1,
    uartparityeven = 0x2,
    uartparityodd  = 0x3
}uartparity_t;

#define UARTPARITYMASK  0x3

typedef enum
{ 
    uart7bits    = 0x4,
    uart8bits    = 0x8,
    uart9bits    = 0xC
}uartbits_t;

#define UARTBITSMASK  0xC


typedef enum
{ 
    uarthalfstop    = 0x10,
    uartonestop     = 0x20,
    uartonehalfstop = 0x30,
    uarttwostop     = 0x40
}uartstopbits_t;

#define UARTSTOPBITSMASK 0x70

extern uart_t uartopen(int count);
extern uart_t uartopenandconfig(int count ,uint32_t cfg,uint32_t speed,uint32_t TXpin,uint32_t RXpin,uint32_t RTSpin,uint32_t CTSpin);
extern int uartclose(uart_t uart);
extern int uartsetpins(uart_t uart,uint32_t TXpin,uint32_t RXpin,uint32_t RTSpin,uint32_t CTSpin);
extern int uartenable(uart_t uart);
extern int uartdisable(uart_t uart);
extern int uartsetconfig(uart_t uart,uint32_t cfg,uint32_t speed);
extern int uartsetspeed(uart_t uart,uint32_t speed);
extern int uartsetparity(uart_t uart,uartparity_t parity);
extern int uartsetdatabits(uart_t uart,uartbits_t databits);
extern int uartsetstopbits(uart_t uart,uartstopbits_t stopbits);
extern int uartputc(uart_t uart,char c);
extern char uartgetc(uart_t uart);
extern int uartputs(uart_t uart,char* s);
extern int uartgets(uart_t uart,char* s);
extern int uartputnc(uart_t uart,char* c,int n);
extern int uartgetnc(uart_t uart,char* c,int n);
extern int uartavailiabledata(uart_t uart);

extern int uartmkstreamdev(uart_t uart,streamdevice* strdev);

#ifdef __cplusplus
}
#endif
#endif //SPI_H