diff options
Diffstat (limited to 'firmware/target/arm/pnx0101/kernel-pnx0101.c')
-rw-r--r-- | firmware/target/arm/pnx0101/kernel-pnx0101.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/firmware/target/arm/pnx0101/kernel-pnx0101.c b/firmware/target/arm/pnx0101/kernel-pnx0101.c new file mode 100644 index 0000000000..db0f1b0d7f --- /dev/null +++ b/firmware/target/arm/pnx0101/kernel-pnx0101.c | |||
@@ -0,0 +1,45 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Copyright (C) 2007 by Tomasz Malesinski | ||
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 | void timer_handler(void) | ||
26 | { | ||
27 | /* Run through the list of tick tasks */ | ||
28 | call_tick_tasks(); | ||
29 | |||
30 | TIMER0.clr = 0; | ||
31 | } | ||
32 | |||
33 | void tick_start(unsigned int interval_in_ms) | ||
34 | { | ||
35 | TIMER0.ctrl &= ~0x80; /* Disable the counter */ | ||
36 | TIMER0.ctrl |= 0x40; /* Reload after counting down to zero */ | ||
37 | TIMER0.load = 3000000 * interval_in_ms / 1000; | ||
38 | TIMER0.ctrl &= ~0xc; /* No prescaler */ | ||
39 | TIMER0.clr = 1; /* Clear the interrupt request */ | ||
40 | |||
41 | irq_set_int_handler(IRQ_TIMER0, timer_handler); | ||
42 | irq_enable_int(IRQ_TIMER0); | ||
43 | |||
44 | TIMER0.ctrl |= 0x80; /* Enable the counter */ | ||
45 | } | ||