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authorJesper Nilsson <jesper.nilsson@axis.com>2007-11-15 04:01:23 +0300
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-11-15 05:45:47 +0300
commitd8e5219f9f5ca7518eb820db9f3d287a1d46fcf5 (patch)
treeaf996eb526010d0f5106df12de646cc1dd64b29e /include/asm-cris
parent3244c77bd3460e9701ffeecc2452d7f2ee17106c (diff)
downloadlinux-d8e5219f9f5ca7518eb820db9f3d287a1d46fcf5.tar.xz
CRISv10 improve and bugfix fasttimer
Improve and bugfix CRIS v10 fast timers. - irq_handler_t now only takes two arguments. - Keep interrupts disabled as long as we have a reference to the fasttimer list and only enable them while doing the callback. del_fast_timer may be called from other interrupt context. - Fix bug where debug code could return without calling local_irq_restore. - Use jiffies instead of usec (change from struct timeval to fasttime_t). - Don't initialize static variables to zero. - Remove obsolete #ifndef DECLARE_WAITQUEUE code. - fast_timer_init should be __initcall. - Change status/debug variables to unsigned. - Remove CVS log and CVS id. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Mikael Starvik <mikael.starvik@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-cris')
-rw-r--r--include/asm-cris/fasttimer.h16
1 files changed, 10 insertions, 6 deletions
diff --git a/include/asm-cris/fasttimer.h b/include/asm-cris/fasttimer.h
index a3a77132ce32..8f8a8d6c9653 100644
--- a/include/asm-cris/fasttimer.h
+++ b/include/asm-cris/fasttimer.h
@@ -1,9 +1,8 @@
-/* $Id: fasttimer.h,v 1.3 2004/05/14 10:19:19 starvik Exp $
+/*
* linux/include/asm-cris/fasttimer.h
*
* Fast timers for ETRAX100LX
- * This may be useful in other OS than Linux so use 2 space indentation...
- * Copyright (C) 2000, 2002 Axis Communications AB
+ * Copyright (C) 2000-2007 Axis Communications AB
*/
#include <linux/time.h> /* struct timeval */
#include <linux/timex.h>
@@ -12,11 +11,16 @@
typedef void fast_timer_function_type(unsigned long);
+struct fasttime_t {
+ unsigned long tv_jiff; /* jiffies */
+ unsigned long tv_usec; /* microseconds */
+};
+
struct fast_timer{ /* Close to timer_list */
struct fast_timer *next;
struct fast_timer *prev;
- struct timeval tv_set;
- struct timeval tv_expires;
+ struct fasttime_t tv_set;
+ struct fasttime_t tv_expires;
unsigned long delay_us;
fast_timer_function_type *function;
unsigned long data;
@@ -38,6 +42,6 @@ int del_fast_timer(struct fast_timer * t);
void schedule_usleep(unsigned long us);
-void fast_timer_init(void);
+int fast_timer_init(void);
#endif