Changeset 350 for soft/giet_vm/giet_drivers/tty_driver.h

Timestamp:

Jun 29, 2014, 12:53:25 PM (10 years ago)

Author:

alain

Message:

Introducing two modifications regarding the locks protecting
exclusive access to BDV and TTY peripherals channels:

• use the giet_lock_t type to have only one lock per cache line.
• store these locks in the seg_kernel_data or in seg_kernel_uncdata, depending on the GIET_NO HARD_CC configuration parameter, to have cacheable locks when it is possible.

File:

• soft/giet_vm/giet_drivers/tty_driver.h (modified) (2 diffs)

soft/giet_vm/giet_drivers/tty_driver.h

@@ -8 +8 @@
 #ifndef _GIET_TTY_DRIVERS_H_
 #define _GIET_TTY_DRIVERS_H_
+
+#include "utils.h"
 
 ///////////////////////////////////////////////////////////////////////////////////
@@ -27 +29 @@
 ///////////////////////////////////////////////////////////////////////////////////
 
-extern volatile unsigned char _tty_get_buf[];
+extern volatile unsigned int _tty_rx_buf[];
 
-extern volatile unsigned char _tty_get_full[];
+extern volatile unsigned int _tty_rx_full[];
+
+extern giet_lock_t _tty_lock[];
 
 //////////////////////////////////////////////////////////////////////////////////