libosmocore patch to support custom baud rates on OS X - baseband-devel

28 Sep 2011

This patch should allow custom baud-rate setting to work on OS X; tested
on Mac OS X 10.7 with a FT232BL-based adapter.

diff --git a/src/shared/libosmocore/src/serial.c
b/src/shared/libosmocore/src/serial.c
index 26cf59d..d702153 100644
--- a/src/shared/libosmocore/src/serial.c
+++ b/src/shared/libosmocore/src/serial.c
@@ -38,8 +38,9 @@
 #include <sys/ioctl.h>
 #include <sys/types.h>
 #include <sys/stat.h>
+#ifdef __linux__
 #include <linux/serial.h>
-
+#endif
#include <osmocom/core/serial.h>
@@ -155,6 +156,7 @@ osmo_serial_set_baudrate(int fd, speed_t baudrate)
 int
 osmo_serial_set_custom_baudrate(int fd, int baudrate)
 {
+#ifdef __linux__
    int rc;
    struct serial_struct ser_info;
@@ -174,6 +176,23 @@ osmo_serial_set_custom_baudrate(int fd, int
baudrate)
    }
return _osmo_serial_set_baudrate(fd, B38400); /* 38400 is a kind
    of magic ... */
+#elsif defined(__APPLE__)
+#ifndef IOSSIOSPEED
+#define IOSSIOSPEED    _IOW('T', 2, speed_t)
+#endif
+    int rc;
+    
+    unsigned int speed = baudrate;
+    rc = ioctl(fd, IOSSIOSPEED, &speed);
+    if (rc < 0) {
+        dbg.perror("ioctl(IOSSIOSPEED)");
+        return -errno;
+    }
+    return 0;
+#else
+#warning osmo_serial_set_custom_baudrate: unsupported platform
+    return 0;
+#endif
 }
/*! \brief Clear any custom baudrate
@@ -186,6 +205,7 @@ int
 osmo_serial_clear_custom_baudrate(int fd)
 {
    int rc;
+#ifdef __linux__
    struct serial_struct ser_info;
rc = ioctl(fd, TIOCGSERIAL, &ser_info);
@@ -202,7 +222,7 @@ osmo_serial_clear_custom_baudrate(int fd)
    	dbg_perror("ioctl(TIOCSSERIAL)");
    	return -errno;
    }
-
+#endif
    return 0;
 }

    