+++ /dev/null
-/*
- * This file is part of the sigrok project.
- *
- * Copyright (C) 2010 Bert Vermeulen <bert@biot.com>
- *
- * 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, see <http://www.gnu.org/licenses/>.
- */
-
-#include <string.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <unistd.h>
-#ifdef _WIN32
-#include <windows.h>
-#else
-#include <glob.h>
-#include <termios.h>
-#endif
-#include <stdlib.h>
-#include <glib.h>
-#include <sigrok.h>
-#include <sigrok-internal.h>
-
-// FIXME: Must be moved, or rather passed as function argument.
-#ifdef _WIN32
-HANDLE hdl;
-#endif
-
-const char *serial_port_glob[] = {
- /* Linux */
- "/dev/ttyS*",
- "/dev/ttyUSB*",
- "/dev/ttyACM*",
- /* MacOS X */
- "/dev/ttys*",
- "/dev/tty.USB-*",
- "/dev/tty.Modem-*",
- NULL,
-};
-
-GSList *list_serial_ports(void)
-{
- GSList *ports;
-
-#ifdef _WIN32
- /* TODO */
- ports = NULL;
- ports = g_slist_append(ports, strdup("COM1"));
-#else
- glob_t g;
- unsigned int i, j;
-
- ports = NULL;
- for (i = 0; serial_port_glob[i]; i++) {
- if (glob(serial_port_glob[i], 0, NULL, &g))
- continue;
- for (j = 0; j < g.gl_pathc; j++)
- ports = g_slist_append(ports, strdup(g.gl_pathv[j]));
- globfree(&g);
- }
-#endif
-
- return ports;
-}
-
-int serial_open(const char *pathname, int flags)
-{
-#ifdef _WIN32
- /* FIXME: Don't hardcode COM1. */
- hdl = CreateFile("COM1", GENERIC_READ | GENERIC_WRITE, 0, 0,
- OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
- if (hdl == INVALID_HANDLE_VALUE) {
- /* TODO: Error handling. */
- }
- return 0;
-#else
- return open(pathname, flags);
-#endif
-}
-
-/*
- * Close the serial port.
- * Returns 0 upon success, -1 upon failure.
- */
-int serial_close(int fd)
-{
-#ifdef _WIN32
- /* Returns non-zero upon success, 0 upon failure. */
- return (CloseHandle(hdl) == 0) ? -1 : 0;
-#else
- /* Returns 0 upon success, -1 upon failure. */
- return close(fd);
-#endif
-}
-
-/*
- * Flush serial port buffers (if any).
- * Returns 0 upon success, -1 upon failure.
- */
-int serial_flush(int fd)
-{
-#ifdef _WIN32
- /* Returns non-zero upon success, 0 upon failure. */
- return (PurgeComm(hdl, PURGE_RXCLEAR | PURGE_TXCLEAR) == 0) ? -1 : 0;
-#else
- /* Returns 0 upon success, -1 upon failure. */
- return tcflush(fd, TCIOFLUSH);
-#endif
-}
-
-/*
- * Write a number of bytes to the specified serial port.
- * Returns the number of bytes written, or -1 upon failure.
- */
-int serial_write(int fd, const void *buf, size_t count)
-{
-#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. */
- return write(fd, buf, count);
-#endif
-}
-
-/*
- * Read a number of bytes from the specified serial port.
- * Returns the number of bytes read, or -1 upon failure.
- */
-int serial_read(int fd, void *buf, size_t count)
-{
-#ifdef _WIN32
- DWORD tmp = 0;
-
- /* 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. */
- return read(fd, buf, count);
-#endif
-}
-
-void *serial_backup_params(int fd)
-{
-#ifdef _WIN32
- /* TODO */
-#else
- struct termios *term;
-
- term = malloc(sizeof(struct termios));
- tcgetattr(fd, term);
-
- return term;
-#endif
-}
-
-void serial_restore_params(int fd, void *backup)
-{
-#ifdef _WIN32
- /* TODO */
-#else
- tcsetattr(fd, TCSADRAIN, (struct termios *)backup);
-#endif
-}
-
-/*
- * Set serial parameters.
- *
- * flowcontrol: 1 = rts/cts, 2 = xon/xoff
- * parity: 0 = none, 1 = even, 2 = odd
- */
-int serial_set_params(int fd, int speed, int bits, int parity, int stopbits,
- int flowcontrol)
-{
-#ifdef _WIN32
- DCB dcb;
-
- if (!GetCommState(hdl, &dcb)) {
- /* TODO: Error handling. */
- return SR_ERR;
- }
-
- /* TODO: Rename 'speed' to 'baudrate'. */
- switch(speed) {
- /* TODO: Support for higher baud rates. */
- case 115200:
- dcb.BaudRate = CBR_115200;
- break;
- case 57600:
- dcb.BaudRate = CBR_57600;
- break;
- case 38400:
- dcb.BaudRate = CBR_38400;
- break;
- case 19200:
- dcb.BaudRate = CBR_19200;
- break;
- case 9600:
- dcb.BaudRate = CBR_9600;
- break;
- default:
- /* TODO: Error handling. */
- break;
- }
- dcb.ByteSize = bits;
- dcb.Parity = NOPARITY; /* TODO: Don't hardcode. */
- dcb.StopBits = ONESTOPBIT; /* TODO: Don't hardcode. */
-
- if (!SetCommState(hdl, &dcb)) {
- /* TODO: Error handling. */
- return SR_ERR;
- }
-#else
- struct termios term;
- speed_t baud;
-
- switch (speed) {
- case 9600:
- baud = B9600;
- break;
- case 38400:
- baud = B38400;
- break;
- case 57600:
- baud = B57600;
- break;
- case 115200:
- baud = B115200;
- break;
- case 460800:
- baud = B460800;
- break;
- default:
- return SR_ERR;
- }
-
- if (tcgetattr(fd, &term) < 0)
- return SR_ERR;
- if (cfsetispeed(&term, baud) < 0)
- return SR_ERR;
-
- term.c_cflag &= ~CSIZE;
- switch (bits) {
- case 8:
- term.c_cflag |= CS8;
- break;
- case 7:
- term.c_cflag |= CS7;
- break;
- default:
- return SR_ERR;
- }
-
- term.c_cflag &= ~CSTOPB;
- switch (stopbits) {
- case 1:
- break;
- case 2:
- term.c_cflag |= CSTOPB;
- default:
- return SR_ERR;
- }
-
- term.c_cflag &= ~(IXON | IXOFF | CRTSCTS);
- switch (flowcontrol) {
- case 2:
- term.c_cflag |= IXON | IXOFF;
- break;
- case 1:
- term.c_cflag |= CRTSCTS;
- default:
- return SR_ERR;
- }
-
- term.c_iflag &= ~IGNPAR;
- term.c_cflag &= ~(PARODD | PARENB);
- switch (parity) {
- case 0:
- term.c_iflag |= IGNPAR;
- break;
- case 1:
- term.c_cflag |= PARENB;
- break;
- case 2:
- term.c_cflag |= PARENB | PARODD;
- break;
- default:
- return SR_ERR;
- }
-
- if (tcsetattr(fd, TCSADRAIN, &term) < 0)
- return SR_ERR;
-#endif
-
- return SR_OK;
-}
projects / libsigrok.git / blobdiff