X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=bertos%2Fcpu%2Favr%2Fdrv%2Ftimer_avr.h;h=78225ff19fabe52445f96cb2bb165867f080a0f8;hb=24362270bbdf61ceedf3cecaf63fb1d36571e554;hp=1eccd0efcd501abc7f6e256b635aa2ad0711c3b7;hpb=720b15af51d68f0c0dfd328437d10de20769c5ae;p=bertos.git

diff --git a/bertos/cpu/avr/drv/timer_avr.h b/bertos/cpu/avr/drv/timer_avr.h
index 1eccd0ef..78225ff1 100644
--- a/bertos/cpu/avr/drv/timer_avr.h
+++ b/bertos/cpu/avr/drv/timer_avr.h
@@ -26,29 +26,30 @@
  * invalidate any other reasons why the executable file might be covered by
  * the GNU General Public License.
  *
- * Copyright 2003, 2004, 2005 Develer S.r.l. (http://www.develer.com/)
+ * Copyright 2003, 2004, 2005, 2010 Develer S.r.l. (http://www.develer.com/)
  * Copyright 2000 Bernie Innocenti <bernie@codewiz.org>
  *
  * -->
  *
  * \brief Low-level timer module for AVR (interface).
  *
- * \version $Id$
- *
  * \author Bernie Innocenti <bernie@codewiz.org>
  * \author Francesco Sacchi <batt@develer.com>
+ * \author Luca Ottaviano <lottaviano@develer.com>
  *
  */
 
 #ifndef DRV_TIMER_AVR_H
 #define DRV_TIMER_AVR_H
 
-#include "hw/hw_cpu.h"        /* CLOCK_FREQ */
+#include <hw/hw_cpufreq.h>   /* CPU_FREQ */
 
-#include "cfg/cfg_timer.h"     /* CONFIG_TIMER */
-#include <cfg/compiler.h>  /* uint8_t */
-#include <cfg/macros.h>    /* DIV_ROUND */
+#include "cfg/cfg_timer.h"   /* CONFIG_TIMER */
+#include <cfg/compiler.h>    /* uint8_t */
+#include <cfg/macros.h>      /* DIV_ROUND */
 
+#include <avr/io.h>
+#include <avr/interrupt.h>
 
 /**
  * \name Values for CONFIG_TIMER.
@@ -71,16 +72,22 @@
 
 	#define TIMER_PRESCALER      64
 	#define TIMER_HW_BITS        8
-	#if CPU_AVR_ATMEGA1281 || CPU_AVR_ATMEGA168
-		#define DEFINE_TIMER_ISR     SIGNAL(SIG_OUTPUT_COMPARE0A)
+	#if CPU_AVR_ATMEGA1281 || CPU_AVR_ATMEGA168 || CPU_AVR_ATMEGA328P
+		#define DEFINE_TIMER_ISR     DECLARE_ISR_CONTEXT_SWITCH(TIMER0_COMPA_vect)
 	#else
-		#define DEFINE_TIMER_ISR     SIGNAL(SIG_OUTPUT_COMPARE0)
+		#define DEFINE_TIMER_ISR     DECLARE_ISR_CONTEXT_SWITCH(TIMER0_COMP_vect)
 	#endif
 	#define TIMER_TICKS_PER_SEC  1000
 	#define TIMER_HW_CNT         OCR_DIVISOR
 
 	/// Type of time expressed in ticks of the hardware high-precision timer
 	typedef uint8_t hptime_t;
+	#define SIZEOF_HPTIME_T 1
+
+	INLINE hptime_t timer_hw_hpread(void)
+	{
+		return TCNT0;
+	}
 
 #elif (CONFIG_TIMER == TIMER_ON_OVERFLOW1)
 
@@ -88,28 +95,39 @@
 	#define TIMER_HW_BITS        8
 	/** This value is the maximum in overflow based timers. */
 	#define TIMER_HW_CNT         (1 << TIMER_HW_BITS)
-	#define DEFINE_TIMER_ISR     SIGNAL(SIG_OVERFLOW1)
+	#define DEFINE_TIMER_ISR     DECLARE_ISR_CONTEXT_SWITCH(TIMER1_OVF_vect)
 	#define TIMER_TICKS_PER_SEC  DIV_ROUND(TIMER_HW_HPTICKS_PER_SEC, TIMER_HW_CNT)
 
 	/// Type of time expressed in ticks of the hardware high precision timer
 	typedef uint16_t hptime_t;
+	#define SIZEOF_HPTIME_T 2
+
+	INLINE hptime_t timer_hw_hpread(void)
+	{
+		return TCNT1;
+	}
 
 #elif (CONFIG_TIMER == TIMER_ON_OUTPUT_COMPARE2)
 
 	#define TIMER_PRESCALER      64
 	#define TIMER_HW_BITS        8
-	#if CPU_AVR_ATMEGA1281 || CPU_AVR_ATMEGA168
-		#define DEFINE_TIMER_ISR     SIGNAL(SIG_OUTPUT_COMPARE2A)
+	#if CPU_AVR_ATMEGA1281 || CPU_AVR_ATMEGA168 || CPU_AVR_ATMEGA328P
+		#define DEFINE_TIMER_ISR     DECLARE_ISR_CONTEXT_SWITCH(TIMER2_COMPA_vect)
 	#else
-		#define DEFINE_TIMER_ISR     SIGNAL(SIG_OUTPUT_COMPARE2)
+		#define DEFINE_TIMER_ISR     DECLARE_ISR_CONTEXT_SWITCH(TIMER2_COMP_vect)
 	#endif
 	#define TIMER_TICKS_PER_SEC  1000
 	/** Value for OCR register in output-compare based timers. */
 	#define TIMER_HW_CNT         OCR_DIVISOR
 
-
 	/// Type of time expressed in ticks of the hardware high precision timer
 	typedef uint8_t hptime_t;
+	#define SIZEOF_HPTIME_T 1
+
+	INLINE hptime_t timer_hw_hpread(void)
+	{
+		return TCNT2;
+	}
 
 #elif (CONFIG_TIMER == TIMER_ON_OVERFLOW3)
 
@@ -117,11 +135,18 @@
 	#define TIMER_HW_BITS        8
 	/** This value is the maximum in overflow based timers. */
 	#define TIMER_HW_CNT         (1 << TIMER_HW_BITS)
-	#define DEFINE_TIMER_ISR     SIGNAL(SIG_OVERFLOW3)
+	#define DEFINE_TIMER_ISR     DECLARE_ISR_CONTEXT_SWITCH(TIMER3_OVF_vect)
 	#define TIMER_TICKS_PER_SEC  DIV_ROUND(TIMER_HW_HPTICKS_PER_SEC, TIMER_HW_CNT)
 
 	/// Type of time expressed in ticks of the hardware high precision timer
 	typedef uint16_t hptime_t;
+	#define SIZEOF_HPTIME_T 2
+
+	INLINE hptime_t timer_hw_hpread(void)
+	{
+		return TCNT3;
+	}
+
 #else
 
 	#error Unimplemented value for CONFIG_TIMER
@@ -129,13 +154,13 @@
 
 
 /** Frequency of the hardware high precision timer. */
-#define TIMER_HW_HPTICKS_PER_SEC  DIV_ROUND(CLOCK_FREQ, TIMER_PRESCALER)
+#define TIMER_HW_HPTICKS_PER_SEC  DIV_ROUND(CPU_FREQ, TIMER_PRESCALER)
 
 /**
  * System timer: additional division after the prescaler
  * 12288000 / 64 / 192 (0..191) = 1 ms
  */
-#define OCR_DIVISOR  (DIV_ROUND(DIV_ROUND(CLOCK_FREQ, TIMER_PRESCALER), TIMER_TICKS_PER_SEC) - 1)
+#define OCR_DIVISOR  (DIV_ROUND(DIV_ROUND(CPU_FREQ, TIMER_PRESCALER), TIMER_TICKS_PER_SEC) - 1)
 
 /** Not needed, IRQ timer flag cleared automatically */
 #define timer_hw_irq() do {} while (0)
@@ -143,5 +168,6 @@
 /** Not needed, timer IRQ handler called only for timer source */
 #define timer_hw_triggered() (true)
 
+void timer_hw_init(void);
 
 #endif /* DRV_TIMER_AVR_H */