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authorMichael Sevakis <jethead71@rockbox.org>2008-03-30 04:59:51 +0000
committerMichael Sevakis <jethead71@rockbox.org>2008-03-30 04:59:51 +0000
commitbc192c953eb2fe80cac471ea4601c27e23512440 (patch)
tree42b17a28635526d32560e14875865a88b2a6dac8 /firmware/export
parent8a6fd3ff4e63c81d7d50af535791318481280f95 (diff)
downloadrockbox-bc192c953eb2fe80cac471ea4601c27e23512440.tar.gz
rockbox-bc192c953eb2fe80cac471ea4601c27e23512440.zip
Add a lightweight wakeup object for fast processors.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16885 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/export')
-rw-r--r--firmware/export/config.h4
-rw-r--r--firmware/export/kernel.h23
2 files changed, 27 insertions, 0 deletions
diff --git a/firmware/export/config.h b/firmware/export/config.h
index 1a288dd590..cd98fc9dca 100644
--- a/firmware/export/config.h
+++ b/firmware/export/config.h
@@ -335,6 +335,10 @@
#endif /* SIMULATOR */
#define HAVE_SEMAPHORE_OBJECTS
#define HAVE_EVENT_OBJECTS
+
+#if defined (TOSHIBA_GIGABEAT_F) || defined (TOSHIBA_GIGABEAT_S)
+#define HAVE_WAKEUP_OBJECTS
+#endif
#endif
/* define for all cpus from SH family */
diff --git a/firmware/export/kernel.h b/firmware/export/kernel.h
index 78403c8b7d..337f249dfe 100644
--- a/firmware/export/kernel.h
+++ b/firmware/export/kernel.h
@@ -78,6 +78,11 @@
#define IS_SYSEVENT(ev) ((ev & SYS_EVENT) == SYS_EVENT)
+#ifndef TIMEOUT_BLOCK
+#define TIMEOUT_BLOCK -1
+#define TIMEOUT_NOBLOCK 0
+#endif
+
struct queue_event
{
long id;
@@ -178,6 +183,17 @@ struct event
};
#endif
+
+#ifdef HAVE_WAKEUP_OBJECTS
+struct wakeup
+{
+ struct thread_entry *queue; /* waiter list */
+ unsigned char signalled; /* signalled status */
+ IF_COP( struct corelock cl; ) /* multiprocessor sync */
+};
+#endif
+
+
/* global tick variable */
#if defined(CPU_PP) && defined(BOOTLOADER)
/* We don't enable interrupts in the iPod bootloader, so we need to fake
@@ -225,6 +241,7 @@ void timeout_cancel(struct timeout *tmo);
#define STATE_SIGNALED 1
#define WAIT_TIMEDOUT (-1)
+#define WAIT_FAILED 0
#define WAIT_SUCCEEDED 1
extern void queue_init(struct event_queue *q, bool register_queue);
@@ -274,4 +291,10 @@ extern void event_wait(struct event *e, unsigned int for_state);
extern void event_set_state(struct event *e, unsigned int state);
#endif /* HAVE_EVENT_OBJECTS */
+#ifdef HAVE_WAKEUP_OBJECTS
+extern void wakeup_init(struct wakeup *w);
+extern int wakeup_wait(struct wakeup *w, int timeout);
+extern int wakeup_signal(struct wakeup *w);
+#endif /* HAVE_WAKEUP_OBJECTS */
+
#endif /* _KERNEL_H_ */