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Diffstat (limited to 'firmware/target/arm/pp/kernel-pp.c')
-rw-r--r--firmware/target/arm/pp/kernel-pp.c64
1 files changed, 64 insertions, 0 deletions
diff --git a/firmware/target/arm/pp/kernel-pp.c b/firmware/target/arm/pp/kernel-pp.c
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1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2002 by Björn Stenberg
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
16 *
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
19 *
20 ****************************************************************************/
21#include "config.h"
22#include "system.h"
23#include "kernel.h"
24
25#if !defined(BOOTLOADER) || defined(HAVE_BOOTLOADER_USB_MODE)
26void TIMER1(void)
27{
28 /* Run through the list of tick tasks (using main core) */
29 TIMER1_VAL; /* Read value to ack IRQ */
30
31 /* Run through the list of tick tasks using main CPU core -
32 wake up the COP through its control interface to provide pulse */
33 call_tick_tasks();
34
35#if NUM_CORES > 1
36 /* Pulse the COP */
37 core_wake(COP);
38#endif /* NUM_CORES */
39}
40#endif
41
42/* Must be last function called init kernel/thread initialization */
43void tick_start(unsigned int interval_in_ms)
44{
45#if !defined(BOOTLOADER) || defined(HAVE_BOOTLOADER_USB_MODE)
46 TIMER1_CFG = 0x0;
47 TIMER1_VAL;
48 /* enable timer */
49 TIMER1_CFG = 0xc0000000 | (interval_in_ms*1000 - 1);
50 /* unmask interrupt source */
51 CPU_INT_EN = TIMER1_MASK;
52#else
53 /* We don't enable interrupts in the bootloader */
54 (void)interval_in_ms;
55#endif
56}
57
58#ifdef HAVE_BOOTLOADER_USB_MODE
59void tick_stop(void)
60{
61 CPU_INT_DIS = TIMER1_MASK;
62 TIMER1_CFG = 0;
63}
64#endif