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fixed defs and to compile for atmega32 also - has no TCNT3

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This commit is contained in:
joxe 2007-12-11 17:21:14 +00:00
parent 486ea95b4f
commit f997ec6231
3 changed files with 24 additions and 3 deletions
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6
cpu/avr/avrdef.h
View file

@ -26,12 +26,16 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)$Id: avrdef.h,v 1.1 2007/08/16 13:20:09 bg- Exp $
* @(#)$Id: avrdef.h,v 1.2 2007/12/11 17:21:14 joxe Exp $
*/
#ifndef AVRDEF_H
#define AVRDEF_H
/* SREG is defined in this file */
#include <avr/io.h>
#include <avr/interrupt.h>
#ifdef HAVE_STDINT_H
#include <stdint.h>
#else

13
cpu/avr/rtimer-arch.c
View file

@ -28,14 +28,16 @@
*
* This file is part of the Contiki operating system.
*
* $Id: rtimer-arch.c,v 1.1 2007/11/29 02:44:05 fros4943 Exp $
* $Id: rtimer-arch.c,v 1.2 2007/12/11 17:21:14 joxe Exp $
*/
/**
* \file
* AVR-specific rtimer code
* Currently only works on ATMEGAs that have Timer 3.
* \author
* Fredrik Osterlind <fros@sics.se>
* Joakim Eriksson <joakime@sics.se>
*/
/* OBS: 8 seconds maximum time! */
@ -48,6 +50,7 @@
#include "rtimer-arch.h"
/*---------------------------------------------------------------------------*/
#ifdef TCNT3
SIGNAL (SIG_OUTPUT_COMPARE3A) {
ENERGEST_ON(ENERGEST_TYPE_IRQ);
@ -59,6 +62,7 @@ SIGNAL (SIG_OUTPUT_COMPARE3A) {
ENERGEST_OFF(ENERGEST_TYPE_IRQ);
}
#endif
/*---------------------------------------------------------------------------*/
void
rtimer_arch_init(void)
@ -68,6 +72,8 @@ rtimer_arch_init(void)
sreg = SREG;
cli ();
#ifdef TCNT3
ETIMSK &= ~((1 << OCIE3A) | (1 << OCIE3B) | (1 << TOIE3) |
(1 << TICIE3) | (1 << OCIE3C));
ETIFR |= (1 << ICF3) | (1 << OCF3A) | (1 << OCF3B) | (1 << TOV3) |
@ -84,6 +90,8 @@ rtimer_arch_init(void)
/* Maximum prescaler */
TCCR3B |= 5;
#endif
/* Restore interrupt state */
SREG = sreg;
}
@ -96,12 +104,15 @@ rtimer_arch_schedule(rtimer_clock_t t)
sreg = SREG;
cli ();
#ifdef TCNT3
/* Set compare register */
OCR3A = t;
ETIFR |= (1 << ICF3) | (1 << OCF3A) | (1 << OCF3B) | (1 << TOV3) |
(1 << OCF3C);
ETIMSK |= (1 << OCIE3A);
#endif
/* Restore interrupt state */
SREG = sreg;
}

8
cpu/avr/rtimer-arch.h
View file

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: rtimer-arch.h,v 1.3 2007/11/29 02:44:05 fros4943 Exp $
* $Id: rtimer-arch.h,v 1.4 2007/12/11 17:21:14 joxe Exp $
*/
#ifndef __RTIMER_ARCH_H__
@ -38,6 +38,12 @@
#define RTIMER_ARCH_SECOND (8192)
/* Handle that not all AVRs have TCNT3 - this should be configuratble
in contiki-conf later! */
#ifdef TCNT3
#define rtimer_arch_now() (TCNT3)
#else
#define rtimer_arch_now() (0)
#endif
#endif /* __RTIMER_ARCH_H__ */