source: flair-src/trunk/lib/FlairCore/src/Unix_I2cPort.cpp @ 2

Last change on this file since 2 was 2, checked in by Sanahuja Guillaume, 6 years ago

flaircore

File size: 1.5 KB
Line 
1// %flair:license{
2// This file is part of the Flair framework distributed under the
3// CECILL-C License, Version 1.0.
4// %flair:license}
5//  created:    2014/08/28
6//  filename:   Unix_I2cPort.cpp
7//
8//  author:     Guillaume Sanahuja
9//              Copyright Heudiasyc UMR UTC/CNRS 7253
10//
11//  version:    $Id: $
12//
13//  purpose:    Class for unix i2c port
14//
15//
16/*********************************************************************/
17
18#include "Unix_I2cPort.h"
19#include <errno.h>
20#include <fcntl.h>   /* File control definitions */
21#include <unistd.h>
22#include <sys/ioctl.h>
23#include <linux/i2c-dev.h>
24
25
26using std::string;
27
28namespace flair
29{
30namespace core
31{
32
33Unix_I2cPort::Unix_I2cPort(const Object* parent,string name,string device) : I2cPort(parent,name)
34{
35    //open port
36    fd = open( device.c_str(), O_RDWR );
37        if (fd == -1)
38        {
39                Err("open_port: Unable to open %s\n",device.c_str());
40        }
41}
42
43Unix_I2cPort::~Unix_I2cPort()
44{
45    close(fd);
46}
47
48void Unix_I2cPort::SetRxTimeout(core::Time timeout_ns)
49{
50    Warn("not implemented\n");
51}
52
53void Unix_I2cPort::SetTxTimeout(core::Time timeout_ns)
54{
55    Warn("not implemented\n");
56}
57
58int Unix_I2cPort::SetSlave(uint16_t address)
59{
60    int err=ioctl( fd, I2C_SLAVE_FORCE, address);
61        if( err < 0 )
62    {
63        Err("Failed to set slave address\n");
64    }
65
66        return err;
67}
68
69ssize_t Unix_I2cPort::Write(const void *buf,size_t nbyte)
70{
71    return write(fd,buf, nbyte);
72}
73
74ssize_t Unix_I2cPort::Read(void *buf,size_t nbyte)
75{
76    return read(fd,buf, nbyte);
77}
78
79} // end namespace core
80} // end namespace flair
81
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