MinGW: Quickfix to make serial.c/ols.c compile.

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

diff --git a/hardware/common/serial.c b/hardware/common/serial.c
index 3395c3e058e7b49203510f27060586a428df0e86..0b9b1c8c390917bf7be44b13beaaf1467da49cc3 100644 (file)
--- a/hardware/common/serial.c
+++ b/hardware/common/serial.c
@@ -95,6 +95,24 @@ int serial_close(int 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. */
+       if (PurgeComm(hdl, PURGE_RXCLEAR | PURGE_TXCLEAR) == 0)
+               return -1;
+       else
+               return 0;
+#else
+       /* Returns 0 upon success, -1 upon failure. */
+       return tcflush(fd, TCIOFLUSH);
+#endif
+}
+
 void *serial_backup_params(int fd)
 {
 #ifdef _WIN32
@@ -118,7 +136,10 @@ void serial_restore_params(int fd, void *backup)
 #endif
 }
 
-/* flowcontrol 1 = rts/cts  2 = xon/xoff */
+/*
+ * 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)
 {
@@ -131,6 +152,7 @@ int serial_set_params(int fd, int speed, int bits, int parity, int stopbits,
 
        /* TODO: Rename 'speed' to 'baudrate'. */
        switch(speed) {
+       /* TODO: Support for higher baud rates. */
        case 115200:
                dcb.BaudRate = CBR_115200;
                break;
@@ -159,21 +181,82 @@ int serial_set_params(int fd, int speed, int bits, int parity, int stopbits,
        }
 #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)
+       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, B115200) < 0)
+       if (cfsetispeed(&term, baud) < 0)
                return SIGROK_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 SIGROK_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 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;
+       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 SIGROK_ERR;
+       }
+
        if (tcsetattr(fd, TCSADRAIN, &term) < 0)
                return SIGROK_ERR;
 #endif