mirror of
https://github.com/g4klx/MMDVMHost
synced 2025-12-23 08:45:48 +08:00
Clean up the I2C code.
This commit is contained in:
Jonathan Naylor
@@ -44,6 +44,8 @@
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CSerialController::CSerialController(const std::string& device, SERIAL_SPEED speed, const std::string& protocol, unsigned int address, bool assertRTS) :
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m_device(device),
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m_speed(speed),
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m_protocol(protocol),
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m_address(address),
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m_assertRTS(assertRTS),
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m_handle(INVALID_HANDLE_VALUE)
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{
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@@ -247,132 +249,132 @@ bool CSerialController::open()
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LogError("Cannot open device - %s", m_device.c_str());
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return false;
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}
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if (::ioctl(m_fd, I2C_TENBIT, 0) < 0) {
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LogError("CI2C: failed to set 7bitaddress");
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::close(m_fd);
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return false;
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}
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if (::ioctl(m_fd, I2C_SLAVE, m_address) < 0) {
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LogError("CI2C: Failed to acquire bus access/talk to slave 0x%u", m_address);
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LogError("CI2C: Failed to acquire bus access/talk to slave 0x%02X", m_address);
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::close(m_fd);
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return false;
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}
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LogError("Conntected to Modem via i2c");
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} else {
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#if defined(__APPLE__)
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m_fd = ::open(m_device.c_str(), O_RDWR | O_NOCTTY | O_NONBLOCK); /*open in block mode under OSX*/
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m_fd = ::open(m_device.c_str(), O_RDWR | O_NOCTTY | O_NONBLOCK); /*open in block mode under OSX*/
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#else
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m_fd = ::open(m_device.c_str(), O_RDWR | O_NOCTTY | O_NDELAY, 0);
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m_fd = ::open(m_device.c_str(), O_RDWR | O_NOCTTY | O_NDELAY, 0);
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#endif
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if (m_fd < 0) {
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LogError("Cannot open device - %s", m_device.c_str());
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return false;
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}
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if (::isatty(m_fd) == 0) {
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LogError("%s is not a TTY device", m_device.c_str());
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::close(m_fd);
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return false;
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}
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termios termios;
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if (::tcgetattr(m_fd, &termios) < 0) {
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LogError("Cannot get the attributes for %s", m_device.c_str());
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::close(m_fd);
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return false;
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}
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#if defined(__APPLE__)
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termios.c_cflag |= (CLOCAL | CREAD); /* ignore modem controls */
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termios.c_cflag &= ~CSIZE;
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termios.c_cflag |= CS8; /* 8-bit characters */
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termios.c_cflag &= ~PARENB; /* no parity bit */
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termios.c_cflag &= ~CSTOPB; /* only need 1 stop bit */
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termios.c_cflag &= ~CRTSCTS; /* no hardware flowcontrol */
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/* setup for non-canonical mode */
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termios.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IXON);
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termios.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
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termios.c_oflag &= ~OPOST;
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/* fetch bytes as they become available */
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termios.c_cc[VMIN] = 1;
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termios.c_cc[VTIME] = 1;
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#else
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termios.c_lflag &= ~(ECHO | ECHOE | ICANON | IEXTEN | ISIG);
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termios.c_iflag &= ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON | IXOFF | IXANY);
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termios.c_cflag &= ~(CSIZE | CSTOPB | PARENB | CRTSCTS);
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termios.c_cflag |= CS8;
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termios.c_oflag &= ~(OPOST);
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termios.c_cc[VMIN] = 0;
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termios.c_cc[VTIME] = 10;
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#endif
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switch (m_speed) {
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case SERIAL_1200:
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::cfsetospeed(&termios, B1200);
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::cfsetispeed(&termios, B1200);
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break;
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case SERIAL_2400:
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::cfsetospeed(&termios, B2400);
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::cfsetispeed(&termios, B2400);
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break;
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case SERIAL_4800:
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::cfsetospeed(&termios, B4800);
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::cfsetispeed(&termios, B4800);
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break;
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case SERIAL_9600:
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::cfsetospeed(&termios, B9600);
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::cfsetispeed(&termios, B9600);
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break;
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case SERIAL_19200:
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::cfsetospeed(&termios, B19200);
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::cfsetispeed(&termios, B19200);
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break;
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case SERIAL_38400:
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::cfsetospeed(&termios, B38400);
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::cfsetispeed(&termios, B38400);
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break;
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case SERIAL_115200:
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::cfsetospeed(&termios, B115200);
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::cfsetispeed(&termios, B115200);
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break;
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case SERIAL_230400:
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::cfsetospeed(&termios, B230400);
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::cfsetispeed(&termios, B230400);
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break;
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default:
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LogError("Unsupported serial port speed - %d", int(m_speed));
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::close(m_fd);
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if (m_fd < 0) {
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LogError("Cannot open device - %s", m_device.c_str());
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return false;
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}
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}
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if (::tcsetattr(m_fd, TCSANOW, &termios) < 0) {
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LogError("Cannot set the attributes for %s", m_device.c_str());
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::close(m_fd);
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return false;
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}
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if (m_assertRTS) {
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unsigned int y;
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if (::ioctl(m_fd, TIOCMGET, &y) < 0) {
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LogError("Cannot get the control attributes for %s", m_device.c_str());
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if (::isatty(m_fd) == 0) {
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LogError("%s is not a TTY device", m_device.c_str());
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::close(m_fd);
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return false;
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}
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y |= TIOCM_RTS;
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if (::ioctl(m_fd, TIOCMSET, &y) < 0) {
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LogError("Cannot set the control attributes for %s", m_device.c_str());
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termios termios;
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if (::tcgetattr(m_fd, &termios) < 0) {
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LogError("Cannot get the attributes for %s", m_device.c_str());
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::close(m_fd);
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return false;
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}
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}
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#if defined(__APPLE__)
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setNonblock(false);
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termios.c_cflag |= (CLOCAL | CREAD); /* ignore modem controls */
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termios.c_cflag &= ~CSIZE;
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termios.c_cflag |= CS8; /* 8-bit characters */
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termios.c_cflag &= ~PARENB; /* no parity bit */
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termios.c_cflag &= ~CSTOPB; /* only need 1 stop bit */
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termios.c_cflag &= ~CRTSCTS; /* no hardware flowcontrol */
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/* setup for non-canonical mode */
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termios.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IXON);
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termios.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
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termios.c_oflag &= ~OPOST;
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/* fetch bytes as they become available */
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termios.c_cc[VMIN] = 1;
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termios.c_cc[VTIME] = 1;
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#else
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termios.c_lflag &= ~(ECHO | ECHOE | ICANON | IEXTEN | ISIG);
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termios.c_iflag &= ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON | IXOFF | IXANY);
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termios.c_cflag &= ~(CSIZE | CSTOPB | PARENB | CRTSCTS);
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termios.c_cflag |= CS8;
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termios.c_oflag &= ~(OPOST);
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termios.c_cc[VMIN] = 0;
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termios.c_cc[VTIME] = 10;
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#endif
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switch (m_speed) {
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case SERIAL_1200:
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::cfsetospeed(&termios, B1200);
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::cfsetispeed(&termios, B1200);
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break;
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case SERIAL_2400:
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::cfsetospeed(&termios, B2400);
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::cfsetispeed(&termios, B2400);
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break;
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case SERIAL_4800:
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::cfsetospeed(&termios, B4800);
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::cfsetispeed(&termios, B4800);
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break;
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case SERIAL_9600:
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::cfsetospeed(&termios, B9600);
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::cfsetispeed(&termios, B9600);
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break;
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case SERIAL_19200:
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::cfsetospeed(&termios, B19200);
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::cfsetispeed(&termios, B19200);
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break;
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case SERIAL_38400:
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::cfsetospeed(&termios, B38400);
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::cfsetispeed(&termios, B38400);
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break;
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case SERIAL_115200:
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::cfsetospeed(&termios, B115200);
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::cfsetispeed(&termios, B115200);
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break;
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case SERIAL_230400:
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::cfsetospeed(&termios, B230400);
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::cfsetispeed(&termios, B230400);
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break;
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default:
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LogError("Unsupported serial port speed - %d", int(m_speed));
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::close(m_fd);
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return false;
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}
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if (::tcsetattr(m_fd, TCSANOW, &termios) < 0) {
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LogError("Cannot set the attributes for %s", m_device.c_str());
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::close(m_fd);
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return false;
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}
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if (m_assertRTS) {
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unsigned int y;
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if (::ioctl(m_fd, TIOCMGET, &y) < 0) {
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LogError("Cannot get the control attributes for %s", m_device.c_str());
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::close(m_fd);
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return false;
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}
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y |= TIOCM_RTS;
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if (::ioctl(m_fd, TIOCMSET, &y) < 0) {
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LogError("Cannot set the control attributes for %s", m_device.c_str());
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::close(m_fd);
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return false;
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}
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}
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#if defined(__APPLE__)
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setNonblock(false);
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#endif
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}
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