Changeset 203 for soft/giet_vm/libs/stdio.c

Timestamp:

Aug 13, 2012, 10:52:25 PM (12 years ago)

Author:

alain

Message:

Introducing support for XICU

File:

• soft/giet_vm/libs/stdio.c (modified) (3 diffs)

soft/giet_vm/libs/stdio.c

@@ -5 +5 @@
 // Copyright (c) UPMC-LIP6
 ///////////////////////////////////////////////////////////////////////////////////
-// The stdio.c and stdio.h files are part of the GIET nano-kernel.
+// The stdio.c and stdio.h files are part of the GIET_VM nano-kernel.
 // This library contains all user-level functions that contain a system call
 // to access protected or shared ressources.
@@ -17 +17 @@
 #define SYSCALL_TTY_WRITE       0x02
 #define SYSCALL_TTY_READ        0x03
+#define SYSCALL_TIMER_START     0x04
+#define SYSCALL_TIMER_STOP      0x05
 #define SYSCALL_GCD_WRITE       0x06
 #define SYSCALL_GCD_READ        0x07
@@ -461 +463 @@
 }
 
+
+/////  TIMER related system calls ////// 
+
+//////////////////////////////////////////////////////////////////////////////////
+// giet_timer_start()
+//////////////////////////////////////////////////////////////////////////////////
+// This function activates the private user timer allocated to the calling task
+// in the boot phase.
+// - Returns 0 if success, > 0 if error.
+//////////////////////////////////////////////////////////////////////////////////
+unsigned int giet_timer_start()
+{
+    return sys_call(SYSCALL_TIMER_START,
+                   0,0,0,0);
+}
+//////////////////////////////////////////////////////////////////////////////////
+// giet_timer_stop()
+//////////////////////////////////////////////////////////////////////////////////
+// This function activates the user timer allocated to the calling task.
+// - Returns 0 if success, > 0 if error.
+//////////////////////////////////////////////////////////////////////////////////
+unsigned int giet_timer_stop()
+{
+    return sys_call(SYSCALL_TIMER_STOP,
+                   0,0,0,0);
+}
+
 /////  GCD (Greatest Common Divider) related system calls