blob: 7207353af5444891b7982207c24d72fe5c3ddabc (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
/*
* Copyright © 2012 Keith Packard <keithp@keithp.com>
*
* 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 program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include <ao.h>
static volatile void *ao_wchan;
uint8_t
ao_sleep(__xdata void *wchan)
{
#if 1
ao_wchan = wchan;
ao_arch_wait_interrupt();
#else
uint8_t sreg;
ao_wchan = wchan;
asm("in %0,__SREG__" : "=&r" (sreg));
sei();
while (ao_wchan)
ao_arch_cpu_idle();
asm("out __SREG__,%0" : : "r" (sreg));
#endif
return 0;
}
#if HAS_AO_DELAY
void
ao_delay(uint16_t ticks)
{
AO_TICK_TYPE target;
if (!ticks)
ticks = 1;
target = ao_tick_count + ticks;
do {
ao_sleep(&ao_time);
} while ((int16_t) (target - ao_tick_count) > 0);
}
#endif
void
ao_wakeup(__xdata void *wchan)
{
(void) wchan;
ao_wchan = 0;
}
|
