source: flair-src/branches/sanscv/lib/FlairCore/src/Unix_I2cPort.cpp @ 326

Last change on this file since 326 was 324, checked in by Sanahuja Guillaume, 2 years ago

removing opencv dependency

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 <fcntl.h> /* File control definitions */
20#include <unistd.h>
21#include <sys/ioctl.h>
22#include <linux/i2c-dev.h>
23
24using std::string;
25
26namespace flair {
27namespace core {
28
29Unix_I2cPort::Unix_I2cPort(const Object *parent, string name, string device)
30    : I2cPort(parent, name) {
31  // open port
32  fd = open(device.c_str(), O_RDWR);
33  if (fd == -1) {
34    Err("open_port: Unable to open %s\n", device.c_str());
35  }
36}
37
38Unix_I2cPort::~Unix_I2cPort() { close(fd); }
39
40void Unix_I2cPort::SetRxTimeout(core::Time timeout_ns) {
41  Warn("not implemented\n");
42}
43
44void Unix_I2cPort::SetTxTimeout(core::Time timeout_ns) {
45  Warn("not implemented\n");
46}
47
48int Unix_I2cPort::SetSlave(uint16_t address) {
49  int err = ioctl(fd, I2C_SLAVE_FORCE, address);
50  if (err < 0) {
51    Err("Failed to set slave address (0x%x)\n",address);
52  }
53
54  return err;
55}
56
57ssize_t Unix_I2cPort::Write(const void *buf, size_t nbyte) {
58  return write(fd, buf, nbyte);
59}
60
61ssize_t Unix_I2cPort::Read(void *buf, size_t nbyte) {
62  return read(fd, buf, nbyte);
63}
64
65} // end namespace core
66} // end namespace flair
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