Merge branch 'master' of git://sigrok.git.sourceforge.net/gitroot/sigrok/sigrok

[libsigrok.git] / hardware / common / serial.c

diff --git a/hardware/common/serial.c b/hardware/common/serial.c
index 0bed4368834a271712337561823795afac1bd59c..cebca29e418dd833007c37572a747d2c84d85cbc 100644 (file)
--- a/hardware/common/serial.c
+++ b/hardware/common/serial.c
@@ -17,10 +17,25 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <glob.h>
 #include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#ifdef _WIN32
+#include <conio.h>
+#else
+#include <glob.h>
+#include <termios.h>
+#endif
+#include <stdlib.h>
 #include <glib.h>
+#include <sigrok.h>
 
+// FIXME: Must be moved, or rather passed as function argument.
+#ifdef _WIN32
+HANDLE hdl;
+#endif
 
 char *serial_port_glob[] = {
        /* Linux */
@@ -31,28 +46,206 @@ char *serial_port_glob[] = {
        "/dev/ttys*",
        "/dev/tty.USB-*",
        "/dev/tty.Modem-*",
-       NULL
+       NULL,
 };
 
-
 GSList *list_serial_ports(void)
 {
+#ifdef _WIN32
+       /* TODO */
+#else
        glob_t g;
        GSList *ports;
-       int i, j;
+       unsigned int i, j;
 
        ports = NULL;
-       for(i = 0; serial_port_glob[i]; i++)
-       {
-               if(!glob(serial_port_glob[i], 0, NULL, &g))
-               {
-                       for(j = 0; j < g.gl_pathc; j++)
-                               ports = g_slist_append(ports, strdup(g.gl_pathv[j]));
-                       globfree(&g);
-               }
+       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);
        }
 
        return ports;
+#endif
+}
+
+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
+}
+
+int serial_close(int fd)
+{
+#ifdef _WIN32
+       CloseHandle(hdl);
+#else
+       return close(fd);
+#endif
+}
+
+int serial_flush(int fd)
+{
+
+       return tcflush(fd, TCIOFLUSH);
+}
+
+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
 }
 
+/*
+ * 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. */
+       }
+
+       /* TODO: Rename 'speed' to 'baudrate'. */
+       switch(speed) {
+       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. */
+       }
+#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 SIGROK_ERR;
+       }
 
+       if (tcgetattr(fd, &term) < 0)
+               return SIGROK_ERR;
+       if (cfsetispeed(&term, baud) < 0)
+               return SIGROK_ERR;
+
+       term.c_cflag &= ~CSIZE;
+       switch (bits) {
+       case 8:
+               term.c_cflag |= CS8;
+               break;
+       case 7:
+               term.c_cflag |= CS7;
+               break;
+       default:
+               return SIGROK_ERR;
+       }
+
+       term.c_cflag &= ~CSTOPB;
+       switch (stopbits) {
+       case 1:
+               break;
+       case 2:
+               term.c_cflag |= CSTOPB;
+       default:
+               return SIGROK_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 SIGROK_ERR;
+       }
+
+       term.c_iflag &= ~(IGNPAR | PARODD | PARENB);
+       switch (parity) {
+       case 0:
+               term.c_iflag |= IGNPAR;
+               break;
+       case 1:
+               term.c_iflag |= PARENB;
+               break;
+       case 2:
+               term.c_iflag |= PARENB | PARODD;
+               break;
+       default:
+               return SIGROK_ERR;
+       }
+
+       if (tcsetattr(fd, TCSADRAIN, &term) < 0)
+               return SIGROK_ERR;
+#endif
+
+       return SIGROK_OK;
+}