uart.c
226 lines
| 4.4 KiB
| text/x-c
|
CLexer
| r71 | /*------------------------------------------------------------------------------ | |||
| -- 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; | ||||
| } | ||||
