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authorAmaury Pouly <pamaury@rockbox.org>2011-09-06 00:27:38 +0000
committerAmaury Pouly <pamaury@rockbox.org>2011-09-06 00:27:38 +0000
commit2ac668e44cec12616a4d675f8eade8049ed10af9 (patch)
tree946451d3ef42a2e1f7c3259b81344ffb82ce041b /firmware/target/arm/imx233/timer-imx233.c
parent333b9ed2c330bb005456444de0eb16ad422496fa (diff)
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imx233/fuze+: implement user time api, implement a stub function, protect timrot against irq
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30437 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/target/arm/imx233/timer-imx233.c')
-rw-r--r--firmware/target/arm/imx233/timer-imx233.c60
1 files changed, 60 insertions, 0 deletions
diff --git a/firmware/target/arm/imx233/timer-imx233.c b/firmware/target/arm/imx233/timer-imx233.c
new file mode 100644
index 0000000000..9721de5cd3
--- /dev/null
+++ b/firmware/target/arm/imx233/timer-imx233.c
@@ -0,0 +1,60 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ * $Id$
+ *
+ * Copyright (C) 2011 by Amaury Pouly
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "kernel.h"
+#include "timrot-imx233.h"
+#include "timer.h"
+
+static long timer_cycles = 0;
+
+static void timer_fn()
+{
+ if(pfn_timer)
+ pfn_timer();
+}
+
+bool timer_set(long cycles, bool start)
+{
+ timer_stop();
+
+ if(start && pfn_unregister)
+ {
+ pfn_unregister();
+ pfn_unregister = NULL;
+ }
+
+ timer_cycles = cycles;
+
+ return true;
+}
+
+bool timer_start(IF_COP_VOID(int core))
+{
+ imx233_setup_timer(USER_TIMER_NR, true, timer_cycles,
+ HW_TIMROT_TIMCTRL__SELECT_TICK_ALWAYS, HW_TIMROT_TIMCTRL__PRESCALE_1,
+ false, &timer_fn);
+ return true;
+}
+
+void timer_stop(void)
+{
+ imx233_setup_timer(USER_TIMER_NR, false, 0, HW_TIMROT_TIMCTRL__SELECT_NEVER_TICK,
+ HW_TIMROT_TIMCTRL__PRESCALE_1, false, NULL);
+}