add invoke callback after serial DMA transmit complete in serial.c

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2387 bbd45198-f89e-11dd-88c7-29a3b14d5316
2012-11-03 13:56:14 +00:00 · 2012-11-03 13:56:14 +00:00 · d0cba80c07
parent 5334925454
commit d0cba80c07
1 changed files with 6 additions and 0 deletions
--- a/components/drivers/serial/serial.c
+++ b/components/drivers/serial/serial.c
@ -439,4 +439,10 @@ void rt_hw_serial_dma_tx_isr(struct rt_serial_device *serial)
    {
        serial->dma_flag = RT_FALSE;
    }
+
+    /* invoke callback */
+    if (serial->parent.tx_complete != RT_NULL)
+    {
+        serial->parent.tx_complete(&serial->parent, RT_NULL);
+    }
 }