From 5cf79723ecb9a22de432d169ce65eb19aa651e8a Mon Sep 17 00:00:00 2001
From: Rafaël Carré <rafael.carre@gmail.com>
Date: Tue, 3 Jan 2012 04:39:56 +0000
Subject: move PP specific files to pp/

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31533 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/target/arm/pp/timer-pp.c | 86 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 firmware/target/arm/pp/timer-pp.c

(limited to 'firmware/target/arm/pp/timer-pp.c')

diff --git a/firmware/target/arm/pp/timer-pp.c b/firmware/target/arm/pp/timer-pp.c
new file mode 100644
index 0000000000..db859f6b88
--- /dev/null
+++ b/firmware/target/arm/pp/timer-pp.c
@@ -0,0 +1,86 @@
+/***************************************************************************
+*             __________               __   ___.
+*   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+*   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+*   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+*   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+*                     \/            \/     \/    \/            \/
+* $Id$
+*
+* Copyright (C) 2006 Thom Johansen
+*
+* 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 "cpu.h"
+#include "system.h"
+#include "timer.h"
+
+static long SHAREDBSS_ATTR cycles_new = 0;
+
+void TIMER2(void)
+{
+    TIMER2_VAL; /* ACK interrupt */
+    if (cycles_new > 0)
+    {
+        TIMER2_CFG = 0xc0000000 | (cycles_new - 1);
+        cycles_new = 0;
+    }
+    if (pfn_timer != NULL)
+    {
+        cycles_new = -1;
+        /* "lock" the variable, in case timer_set_period()
+         * is called within pfn_timer() */
+        pfn_timer();
+        cycles_new = 0;
+    }
+}
+
+bool timer_set(long cycles, bool start)
+{
+    if (cycles > 0x20000000 || cycles < 2)
+        return false;
+
+    if (start)
+    {
+        if (pfn_unregister != NULL)
+        {
+            pfn_unregister();
+            pfn_unregister = NULL;
+        }
+        CPU_INT_DIS = TIMER2_MASK;
+        COP_INT_DIS = TIMER2_MASK;
+    }
+    if (start || (cycles_new == -1))  /* within isr, cycles_new is "locked" */
+        TIMER2_CFG = 0xc0000000 | (cycles - 1);    /* enable timer */
+    else
+        cycles_new = cycles;
+
+    return true;
+}
+
+bool timer_start(IF_COP_VOID(int core))
+{
+    /* unmask interrupt source */
+#if NUM_CORES > 1
+    if (core == COP)
+        COP_INT_EN = TIMER2_MASK;
+    else
+#endif
+        CPU_INT_EN = TIMER2_MASK;
+    return true;
+}
+
+void timer_stop(void)
+{
+    TIMER2_CFG = 0;         /* stop timer 2 */
+    CPU_INT_DIS = TIMER2_MASK;
+    COP_INT_DIS = TIMER2_MASK;
+}
-- 
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