Changeset 345 for soft/giet_vm/giet_drivers/tty_driver.c

Timestamp:

Jun 25, 2014, 2:19:37 PM (10 years ago)

Author:

cfuguet

Message:

giet_vm optimizations:

• Several modifications in GIET_VM in order to support compilation with GCC optimizations (-O2) activated.

• Adding missing volatile in some global variables.

• Using ioread and iowrite utility functions in peripheral drivers which prevent GCC to remove writes or reads in hardware memory mapped registers.

• Code refactoring of stdio printf functions. Now, shr_printf and tty_printf function reuse the same function body. The only difference is that shr_printf wraps printf function call with TTY get lock and release lock.

File:

• soft/giet_vm/giet_drivers/tty_driver.c (modified) (1 diff)

soft/giet_vm/giet_drivers/tty_driver.c

@@ -53 +53 @@
 
 in_unckdata volatile unsigned int _tty_rx_full[NB_TTY_CHANNELS] 
-                                     = { [0 ... NB_TTY_CHANNELS - 1] = 0 };
-
-in_kdata unsigned int _tty_lock[NB_TTY_CHANNELS] 
-                        = { [0 ... NB_TTY_CHANNELS - 1] = 0 };
+    = { [0 ... NB_TTY_CHANNELS - 1] = 0 };
+
+in_unckdata unsigned int _tty_lock[NB_TTY_CHANNELS]
+    = { [0 ... NB_TTY_CHANNELS - 1] = 0 };
 
 //////////////////////////////////////////////////////////////////////////////