libftdi: (tomj) ability to set RS232 break type

[libftdi] / src / ftdi.c

diff --git a/src/ftdi.c b/src/ftdi.c
index 0dbc5b6..22d29bf 100644 (file)
--- a/src/ftdi.c
+++ b/src/ftdi.c
@@ -755,7 +755,9 @@ int ftdi_set_baudrate(struct ftdi_context *ftdi, int baudrate)
 }
 
 /**
-    Set (RS232) line characteristics by Alain Abbas
+    Set (RS232) line characteristics.
+    The break type can only be set via ftdi_set_line_property2()
+    and defaults to "off".
 
     \param ftdi pointer to ftdi_context
     \param bits Number of bits
@@ -768,6 +770,25 @@ int ftdi_set_baudrate(struct ftdi_context *ftdi, int baudrate)
 int ftdi_set_line_property(struct ftdi_context *ftdi, enum ftdi_bits_type bits,
                            enum ftdi_stopbits_type sbit, enum ftdi_parity_type parity)
 {
+    return ftdi_set_line_property2(ftdi, bits, sbit, parity, BREAK_OFF);
+}
+
+/**
+    Set (RS232) line characteristics
+
+    \param ftdi pointer to ftdi_context
+    \param bits Number of bits
+    \param sbit Number of stop bits
+    \param parity Parity mode
+    \param break_type Break type
+
+    \retval  0: all fine
+    \retval -1: Setting line property failed
+*/
+int ftdi_set_line_property2(struct ftdi_context *ftdi, enum ftdi_bits_type bits,
+                           enum ftdi_stopbits_type sbit, enum ftdi_parity_type parity,
+                           enum ftdi_break_type break_type)
+{
     unsigned short value = bits;
 
     switch(parity) {
@@ -800,6 +821,15 @@ int ftdi_set_line_property(struct ftdi_context *ftdi, enum ftdi_bits_type bits,
         break;
     }
 
+    switch(break_type) {
+    case BREAK_OFF:
+        value |= (0x00 << 14);
+        break;
+    case BREAK_ON:
+        value |= (0x01 << 14);
+        break;
+    }
+
     if (usb_control_msg(ftdi->usb_dev, 0x40, 0x04, value, ftdi->index, NULL, 0, ftdi->usb_write_timeout) != 0)
         ftdi_error_return (-1, "Setting new line property failed");