*/
#include <string.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <unistd.h>
-#ifdef _WIN32
-#include <windows.h>
-#else
-#include <termios.h>
-#include <sys/ioctl.h>
-#endif
#include <stdlib.h>
-#include <errno.h>
#include <glib.h>
+#include <serialport.h>
#include "libsigrok.h"
#include "libsigrok-internal.h"
#define sr_warn(s, args...) sr_warn(LOG_PREFIX s, ## args)
#define sr_err(s, args...) sr_err(LOG_PREFIX s, ## args)
-// FIXME: Must be moved, or rather passed as function argument.
-#ifdef _WIN32
-static HANDLE hdl;
-#endif
-
/**
* Open the specified serial port.
*
*/
SR_PRIV int serial_open(struct sr_serial_dev_inst *serial, int flags)
{
- int flags_local = 0;
-#ifdef _WIN32
- DWORD desired_access = 0, flags_and_attributes = 0;
-#endif
+ int ret;
+ char *error;
if (!serial) {
sr_dbg("Invalid serial port.");
sr_spew("Opening serial port '%s' (flags %d).", serial->port, flags);
-#ifdef _WIN32
- /* Map 'flags' to the OS-specific settings. */
- desired_access |= GENERIC_READ;
- flags_and_attributes = FILE_ATTRIBUTE_NORMAL;
- if (flags & SERIAL_RDWR)
- desired_access |= GENERIC_WRITE;
- if (flags & SERIAL_NONBLOCK)
- flags_and_attributes |= FILE_FLAG_OVERLAPPED;
-
- hdl = CreateFile(serial->port, desired_access, 0, 0,
- OPEN_EXISTING, flags_and_attributes, 0);
- if (hdl == INVALID_HANDLE_VALUE) {
- sr_err("Error opening serial port '%s'.", serial->port);
- return SR_ERR;
- }
-#else
- /* Map 'flags' to the OS-specific settings. */
- if (flags & SERIAL_RDWR)
- flags_local |= O_RDWR;
- if (flags & SERIAL_RDONLY)
- flags_local |= O_RDONLY;
- if (flags & SERIAL_NONBLOCK)
- flags_local |= O_NONBLOCK;
-
- if ((serial->fd = open(serial->port, flags_local)) < 0) {
- sr_err("Error opening serial port '%s': %s.", serial->port,
- strerror(errno));
- return SR_ERR;
+ ret = sp_open(&serial->data, serial->port, flags);
+
+ switch (ret)
+ {
+ case SP_ERR_ARG:
+ sr_err("Attempt to open serial port with invalid parameters.");
+ return SR_ERR_ARG;
+ case SP_ERR_FAIL:
+ error = sp_last_error_message();
+ sr_err("Error opening port: %s.", error);
+ sp_free_error_message(error);
+ return SR_ERR;
}
- sr_spew("Opened serial port '%s' (fd %d).", serial->port, serial->fd);
+#ifndef _WIN32
+ serial->fd = serial->data.fd;
#endif
if (serial->serialcomm)
SR_PRIV int serial_close(struct sr_serial_dev_inst *serial)
{
int ret;
+ char *error;
if (!serial) {
sr_dbg("Invalid serial port.");
sr_spew("Closing serial port %s (fd %d).", serial->port, serial->fd);
ret = SR_OK;
-#ifdef _WIN32
- /* Returns non-zero upon success, 0 upon failure. */
- if (CloseHandle(hdl) == 0)
- ret = SR_ERR;
-#else
- /* Returns 0 upon success, -1 upon failure. */
- if (close(serial->fd) < 0) {
- sr_err("Error closing serial port: %s (fd %d).", strerror(errno),
- serial->fd);
- ret = SR_ERR;
+ ret = sp_close(&serial->data);
+
+ switch (ret)
+ {
+ case SP_ERR_ARG:
+ sr_err("Attempt to close an invalid serial port.");
+ return SR_ERR_ARG;
+ case SP_ERR_FAIL:
+ error = sp_last_error_message();
+ sr_err("Error closing port: %s.", error);
+ sp_free_error_message(error);
+ return SR_ERR;
}
-#endif
serial->fd = -1;
SR_PRIV int serial_flush(struct sr_serial_dev_inst *serial)
{
int ret;
+ char *error;
if (!serial) {
sr_dbg("Invalid serial port.");
}
sr_spew("Flushing serial port %s (fd %d).", serial->port, serial->fd);
- ret = SR_OK;
-#ifdef _WIN32
- /* Returns non-zero upon success, 0 upon failure. */
- if (PurgeComm(hdl, PURGE_RXCLEAR | PURGE_TXCLEAR) == 0) {
- sr_err("Error flushing serial port: %s.", strerror(errno));
- ret = SR_ERR;
- }
-#else
- /* Returns 0 upon success, -1 upon failure. */
- if (tcflush(serial->fd, TCIOFLUSH) < 0) {
- sr_err("Error flushing serial port: %s.", strerror(errno));
- ret = SR_ERR;
+ ret = sp_flush(&serial->data);
+
+ switch (ret)
+ {
+ case SP_ERR_ARG:
+ sr_err("Attempt to flush an invalid serial port.");
+ return SR_ERR_ARG;
+ case SP_ERR_FAIL:
+ error = sp_last_error_message();
+ sr_err("Error flushing port: %s.", error);
+ sp_free_error_message(error);
+ return SR_ERR;
}
return ret;
-#endif
}
/**
const void *buf, size_t count)
{
ssize_t ret;
+ char *error;
if (!serial) {
sr_dbg("Invalid serial port.");
return -1;
}
-#ifdef _WIN32
- DWORD tmp = 0;
-
- /* FIXME */
- /* Returns non-zero upon success, 0 upon failure. */
- WriteFile(hdl, buf, count, &tmp, NULL);
-#else
- /* Returns the number of bytes written, or -1 upon failure. */
- ret = write(serial->fd, buf, count);
- if (ret < 0)
- sr_err("Write error: %s.", strerror(errno));
- else
- sr_spew("Wrote %d/%d bytes (fd %d).", ret, count, serial->fd);
-#endif
+ ret = sp_write(&serial->data, buf, count);
+
+ switch (ret)
+ {
+ case SP_ERR_ARG:
+ sr_err("Attempted serial port write with invalid arguments.");
+ return SR_ERR_ARG;
+ case SP_ERR_FAIL:
+ error = sp_last_error_message();
+ sr_err("Write error: %s.", error);
+ sp_free_error_message(error);
+ return SR_ERR;
+ }
+
+ sr_spew("Wrote %d/%d bytes (fd %d).", ret, count, serial->fd);
return ret;
}
size_t count)
{
ssize_t ret;
+ char *error;
if (!serial) {
sr_dbg("Invalid serial port.");
return -1;
}
-#ifdef _WIN32
- DWORD tmp = 0;
+ ret = sp_read(&serial->data, buf, count);
- /* FIXME */
- /* Returns non-zero upon success, 0 upon failure. */
- return ReadFile(hdl, buf, count, &tmp, NULL);
-#else
- /* Returns the number of bytes read, or -1 upon failure. */
- ret = read(serial->fd, buf, count);
-#endif
+ switch (ret)
+ {
+ case SP_ERR_ARG:
+ sr_err("Attempted serial port read with invalid arguments.");
+ return SR_ERR_ARG;
+ case SP_ERR_FAIL:
+ error = sp_last_error_message();
+ sr_err("Read error: %s.", error);
+ sp_free_error_message(error);
+ return SR_ERR;
+ }
+
+ sr_spew("Read %d/%d bytes (fd %d).", ret, count, serial->fd);
return ret;
}
int bits, int parity, int stopbits,
int flowcontrol, int rts, int dtr)
{
+ int ret;
+ char *error;
+
if (!serial) {
sr_dbg("Invalid serial port.");
return SR_ERR;
sr_spew("Setting serial parameters on port %s (fd %d).", serial->port,
serial->fd);
-#ifdef _WIN32
- DCB dcb;
-
- if (!GetCommState(hdl, &dcb)) {
- sr_err("Failed to get comm state on port %s (fd %d): %d.",
- serial->port, serial->fd, GetLastError());
- return SR_ERR;
- }
-
- switch (baudrate) {
- /*
- * The baudrates 50/75/134/150/200/1800/230400/460800 do not seem to
- * have documented CBR_* macros.
- */
- case 110:
- dcb.BaudRate = CBR_110;
- break;
- case 300:
- dcb.BaudRate = CBR_300;
- break;
- case 600:
- dcb.BaudRate = CBR_600;
- break;
- case 1200:
- dcb.BaudRate = CBR_1200;
- break;
- case 2400:
- dcb.BaudRate = CBR_2400;
- break;
- case 4800:
- dcb.BaudRate = CBR_4800;
- break;
- case 9600:
- dcb.BaudRate = CBR_9600;
- break;
- case 14400:
- dcb.BaudRate = CBR_14400; /* Not available on Unix? */
- break;
- case 19200:
- dcb.BaudRate = CBR_19200;
- break;
- case 38400:
- dcb.BaudRate = CBR_38400;
- break;
- case 57600:
- dcb.BaudRate = CBR_57600;
- break;
- case 115200:
- dcb.BaudRate = CBR_115200;
- break;
- case 128000:
- dcb.BaudRate = CBR_128000; /* Not available on Unix? */
- break;
- case 256000:
- dcb.BaudRate = CBR_256000; /* Not available on Unix? */
- break;
- default:
- sr_err("Unsupported baudrate: %d.", baudrate);
- return SR_ERR;
- }
- sr_spew("Configuring baudrate to %d (%d).", baudrate, dcb.BaudRate);
-
- sr_spew("Configuring %d data bits.", bits);
- dcb.ByteSize = bits;
-
- sr_spew("Configuring %d stop bits.", stopbits);
- switch (stopbits) {
- /* Note: There's also ONE5STOPBITS == 1.5 (unneeded so far). */
- case 1:
- dcb.StopBits = ONESTOPBIT;
- break;
- case 2:
- dcb.StopBits = TWOSTOPBITS;
- break;
- default:
- sr_err("Unsupported stopbits number: %d.", stopbits);
- return SR_ERR;
- }
-
- switch (parity) {
- /* Note: There's also SPACEPARITY, MARKPARITY (unneeded so far). */
- case SERIAL_PARITY_NONE:
- sr_spew("Configuring no parity.");
- dcb.Parity = NOPARITY;
- break;
- case SERIAL_PARITY_EVEN:
- sr_spew("Configuring even parity.");
- dcb.Parity = EVENPARITY;
- break;
- case SERIAL_PARITY_ODD:
- sr_spew("Configuring odd parity.");
- dcb.Parity = ODDPARITY;
- break;
- default:
- sr_err("Unsupported parity setting: %d.", parity);
- return SR_ERR;
- }
-
- if (rts != -1) {
- sr_spew("Setting RTS %s.", rts ? "high" : "low");
- if (rts)
- dcb.fRtsControl = RTS_CONTROL_ENABLE;
- else
- dcb.fRtsControl = RTS_CONTROL_DISABLE;
- }
-
- if (dtr != -1) {
- sr_spew("Setting DTR %s.", dtr ? "high" : "low");
- if (dtr)
- dcb.fDtrControl = DTR_CONTROL_ENABLE;
- else
- dcb.fDtrControl = DTR_CONTROL_DISABLE;
- }
-
- if (!SetCommState(hdl, &dcb)) {
- sr_err("Failed to set comm state on port %s (fd %d): %d.",
- serial->port, serial->fd, GetLastError());
- return SR_ERR;
- }
-#else
- struct termios term;
- speed_t baud;
- int ret, controlbits;
-
- if (tcgetattr(serial->fd, &term) < 0) {
- sr_err("tcgetattr() error on port %s (fd %d): %s.",
- serial->port, serial->fd, strerror(errno));
- return SR_ERR;
- }
-
- switch (baudrate) {
- case 50:
- baud = B50;
- break;
- case 75:
- baud = B75;
- break;
- case 110:
- baud = B110;
- break;
- case 134:
- baud = B134;
- break;
- case 150:
- baud = B150;
- break;
- case 200:
- baud = B200;
- break;
- case 300:
- baud = B300;
- break;
- case 600:
- baud = B600;
- break;
- case 1200:
- baud = B1200;
- break;
- case 1800:
- baud = B1800;
- break;
- case 2400:
- baud = B2400;
- break;
- case 4800:
- baud = B4800;
- break;
- case 9600:
- baud = B9600;
- break;
- case 19200:
- baud = B19200;
- break;
- case 38400:
- baud = B38400;
- break;
- case 57600:
- baud = B57600;
- break;
- case 115200:
- baud = B115200;
- break;
- case 230400:
- baud = B230400;
- break;
-#if !defined(__APPLE__) && !defined(__OpenBSD__)
- case 460800:
- baud = B460800;
- break;
-#endif
- default:
- sr_err("Unsupported baudrate: %d.", baudrate);
- return SR_ERR;
- }
-
- sr_spew("Configuring output baudrate to %d (%d).", baudrate, baud);
- if (cfsetospeed(&term, baud) < 0) {
- sr_err("cfsetospeed() error: %s.", strerror(errno));
- return SR_ERR;
- }
-
- sr_spew("Configuring input baudrate to %d (%d).", baudrate, baud);
- if (cfsetispeed(&term, baud) < 0) {
- sr_err("cfsetispeed() error: %s.", strerror(errno));
- return SR_ERR;
- }
-
- sr_spew("Configuring %d data bits.", bits);
- term.c_cflag &= ~CSIZE;
- switch (bits) {
- case 8:
- term.c_cflag |= CS8;
- break;
- case 7:
- term.c_cflag |= CS7;
- break;
- default:
- sr_err("Unsupported data bits number %d.", bits);
- return SR_ERR;
- }
-
- sr_spew("Configuring %d stop bits.", stopbits);
- term.c_cflag &= ~CSTOPB;
- switch (stopbits) {
- case 1:
- term.c_cflag &= ~CSTOPB;
- break;
- case 2:
- term.c_cflag |= CSTOPB;
- break;
- default:
- sr_err("Unsupported stopbits number %d.", stopbits);
- return SR_ERR;
- }
-
- term.c_iflag &= ~(IXON | IXOFF | IXANY);
- term.c_cflag &= ~CRTSCTS;
- switch (flowcontrol) {
- case 0:
- /* No flow control. */
- sr_spew("Configuring no flow control.");
- break;
- case 1:
- sr_spew("Configuring RTS/CTS flow control.");
- term.c_cflag |= CRTSCTS;
- break;
- case 2:
- sr_spew("Configuring XON/XOFF flow control.");
- term.c_iflag |= (IXON | IXOFF | IXANY);
- break;
- default:
- sr_err("Unsupported flow control setting %d.", flowcontrol);
- return SR_ERR;
- }
-
- term.c_iflag &= ~IGNPAR;
- term.c_cflag &= ~(PARENB | PARODD);
- switch (parity) {
- case SERIAL_PARITY_NONE:
- sr_spew("Configuring no parity.");
- term.c_iflag |= IGNPAR;
- break;
- case SERIAL_PARITY_EVEN:
- sr_spew("Configuring even parity.");
- term.c_cflag |= PARENB;
- break;
- case SERIAL_PARITY_ODD:
- sr_spew("Configuring odd parity.");
- term.c_cflag |= PARENB | PARODD;
- break;
- default:
- sr_err("Unsupported parity setting %d.", parity);
- return SR_ERR;
- }
-
- /* Turn off all serial port cooking. */
- term.c_iflag &= ~(ISTRIP | INLCR | ICRNL);
- term.c_oflag &= ~(OPOST | ONLCR | OCRNL | ONOCR);
-#if !defined(__FreeBSD__) && !defined(__OpenBSD__) && !defined(__NetBSD__)
- term.c_oflag &= ~OFILL;
-#endif
-
- /* Disable canonical mode, and don't echo input characters. */
- term.c_lflag &= ~(ICANON | ECHO);
-
- /* Ignore modem status lines; enable receiver */
- term.c_cflag |= (CLOCAL | CREAD);
-
- /* Write the configured settings. */
- if (tcsetattr(serial->fd, TCSADRAIN, &term) < 0) {
- sr_err("tcsetattr() error: %s.", strerror(errno));
- return SR_ERR;
- }
-
- if (rts != -1) {
- sr_spew("Setting RTS %s.", rts ? "high" : "low");
- controlbits = TIOCM_RTS;
- if ((ret = ioctl(serial->fd, rts ? TIOCMBIS : TIOCMBIC,
- &controlbits)) < 0) {
- sr_err("Error setting RTS: %s.", strerror(errno));
- return SR_ERR;
- }
- }
-
- if (dtr != -1) {
- sr_spew("Setting DTR %s.", dtr ? "high" : "low");
- controlbits = TIOCM_DTR;
- if ((ret = ioctl(serial->fd, dtr ? TIOCMBIS : TIOCMBIC,
- &controlbits)) < 0) {
- sr_err("Error setting DTR: %s.", strerror(errno));
+ ret = sp_set_params(&serial->data, baudrate, bits, parity, stopbits,
+ flowcontrol, rts, dtr);
+
+ switch (ret)
+ {
+ case SP_ERR_ARG:
+ sr_err("Invalid arguments for setting serial port parameters.");
+ return SR_ERR_ARG;
+ case SP_ERR_FAIL:
+ error = sp_last_error_message();
+ sr_err("Error setting serial port parameters: %s.", error);
+ sp_free_error_message(error);
return SR_ERR;
- }
}
-#endif
-
return SR_OK;
}
projects / libsigrok.git / commitdiff