#include <fcntl.h>
#include <unistd.h>
#ifdef _WIN32
-#include <conio.h>
+#include <windows.h>
#else
#include <glob.h>
#include <termios.h>
#endif
#include <stdlib.h>
#include <glib.h>
-#include <sigrok.h>
+#include "sigrok.h"
+#include "sigrok-internal.h"
// FIXME: Must be moved, or rather passed as function argument.
#ifdef _WIN32
-HANDLE hdl;
+static HANDLE hdl;
#endif
-char *serial_port_glob[] = {
+const char *serial_port_glob[] = {
/* Linux */
"/dev/ttyS*",
"/dev/ttyUSB*",
GSList *list_serial_ports(void)
{
+ GSList *ports;
+
#ifdef _WIN32
/* TODO */
+ ports = NULL;
+ ports = g_slist_append(ports, strdup("COM1"));
#else
glob_t g;
- GSList *ports;
unsigned int i, j;
ports = NULL;
ports = g_slist_append(ports, strdup(g.gl_pathv[j]));
globfree(&g);
}
+#endif
return ports;
-#endif
}
int serial_open(const char *pathname, int flags)
#endif
}
+/*
+ * Close the serial port.
+ * Returns 0 upon success, -1 upon failure.
+ */
int serial_close(int fd)
{
#ifdef _WIN32
- CloseHandle(hdl);
+ /* 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
+}
- tcflush(fd, TCIOFLUSH);
+/*
+ * 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)
#else
struct termios *term;
- term = malloc(sizeof(struct termios));
+ /* TODO: 'term' is never g_free()'d? */
+ if (!(term = g_try_malloc(sizeof(struct termios)))) {
+ sr_err("serial: %s: term malloc failed", __func__);
+ return NULL;
+ }
+
tcgetattr(fd, term);
return term;
#endif
}
-/* flowcontrol 1 = rts/cts 2 = xon/xoff */
+/*
+ * 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)
{
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;
if (!SetCommState(hdl, &dcb)) {
/* TODO: Error handling. */
+ return SR_ERR;
}
#else
struct termios term;
+ speed_t baud;
- /* Only supporting what we need really, currently the OLS driver. */
- if (speed != 115200 || bits != 8 || parity != 0 || stopbits != 1
- || flowcontrol != 2)
- return SIGROK_ERR;
+ switch (speed) {
+ case 9600:
+ baud = B9600;
+ break;
+ case 38400:
+ baud = B38400;
+ break;
+ case 57600:
+ baud = B57600;
+ break;
+ case 115200:
+ baud = B115200;
+ break;
+#ifndef __APPLE__
+ case 460800:
+ baud = B460800;
+ break;
+#endif
+ default:
+ return SR_ERR;
+ }
if (tcgetattr(fd, &term) < 0)
- return SIGROK_ERR;
- if (cfsetispeed(&term, B115200) < 0)
- return SIGROK_ERR;
+ return SR_ERR;
+ if (cfsetispeed(&term, baud) < 0)
+ return SR_ERR;
+
term.c_cflag &= ~CSIZE;
- term.c_cflag |= CS8;
+ switch (bits) {
+ case 8:
+ term.c_cflag |= CS8;
+ break;
+ case 7:
+ term.c_cflag |= CS7;
+ break;
+ default:
+ return SR_ERR;
+ }
+
term.c_cflag &= ~CSTOPB;
- term.c_cflag |= IXON | IXOFF;
- term.c_iflag |= IGNPAR;
+ 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 SIGROK_ERR;
+ return SR_ERR;
#endif
- return SIGROK_OK;
+ return SR_OK;
}
projects / libsigrok.git / blobdiff