Fix raw1394_read_cycle_timer after juju integration

The ieee1394 version of raw1394_read_cycle_timer() fell over the cliff
in "First cut at integrating juju".  This brings it back and adds a juju
version of it.

Also correct a typo in the inline documentation: s/get/read/

1 files changed, 19 insertions, 0 deletions

diff --git a/src/fw-iso.c b/src/fw-iso.c
index a1794c3..f493444 100644
--- a/src/fw-iso.c
+++ b/src/fw-iso.c
@@ -529,3 +529,22 @@ void fw_iso_shutdown(fw_handle_t handle)
 	free(handle->iso.packets);
 	handle->iso.packets = NULL;
 }
+
+int fw_read_cycle_timer(fw_handle_t handle,
+			u_int32_t *cycle_timer, u_int64_t *local_time)
+{
+#ifdef FW_CDEV_IOC_GET_CYCLE_TIMER /* added in kernel 2.6.24 */
+	int err;
+	struct fw_cdev_get_cycle_timer ctr = { 0 };
+
+	err = ioctl(handle->iso.fd, FW_CDEV_IOC_GET_CYCLE_TIMER, &ctr);
+	if (!err) {
+		*cycle_timer = ctr.cycle_timer;
+		*local_time  = ctr.local_time;
+	}
+	return err;
+#else
+	errno = ENOSYS;
+	return -1;
+#endif /* defined(FW_CDEV_IOC_GET_CYCLE_TIMER) */
+}