serial: Introduce API osmo_serial_speed_t
This allows usual integer parsing at app level and calling this function
to make sure correct values will be passed to
osmo_serial_set_baudrate().
Change-Id: I41415c99d26128b33a8bf5ef7b38948bd1fe5d50
diff --git a/src/serial.c b/src/serial.c
index 72d3594..c3bf5e8 100644
--- a/src/serial.c
+++ b/src/serial.c
@@ -245,4 +245,39 @@
return 0;
}
+/*! Convert unsigned integer value to speed_t
+ * \param[in] baudrate integer value containing the desired standard baudrate
+ * \param[out] speed the standrd baudrate requested in speed_t format
+ * \returns 0 for success or negative errno.
+ */
+int
+osmo_serial_speed_t(unsigned int baudrate, speed_t *speed)
+{
+ switch(baudrate) {
+ case 0: *speed = B0; break;
+ case 50: *speed = B50; break;
+ case 75: *speed = B75; break;
+ case 110: *speed = B110; break;
+ case 134: *speed = B134; break;
+ case 150: *speed = B150; break;
+ case 200: *speed = B200; break;
+ case 300: *speed = B300; break;
+ case 600: *speed = B600; break;
+ case 1200: *speed = B1200; break;
+ case 1800: *speed = B1800; break;
+ case 2400: *speed = B2400; break;
+ case 4800: *speed = B4800; break;
+ case 9600: *speed = B9600; break;
+ case 19200: *speed = B19200; break;
+ case 38400: *speed = B38400; break;
+ case 57600: *speed = B57600; break;
+ case 115200: *speed = B115200; break;
+ case 230400: *speed = B230400; break;
+ default:
+ *speed = B0;
+ return -EINVAL;
+ }
+ return 0;
+}
+
/*! @} */