X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=bertos%2Fcpu%2Favr%2Fdrv%2Ftimer_avr.h;h=89d0dd76d134c9d5ff8ebb595838e4e0fa9fa2b2;hb=53af4558886960f99632fb9cea1af91ce3fe82b1;hp=d306cd8a9bd6c9d4a65518fb619cc56b0db149d0;hpb=a5a5d7fb49ff0c4874b6d5a7b331da955be20f53;p=bertos.git diff --git a/bertos/cpu/avr/drv/timer_avr.h b/bertos/cpu/avr/drv/timer_avr.h index d306cd8a..89d0dd76 100644 --- a/bertos/cpu/avr/drv/timer_avr.h +++ b/bertos/cpu/avr/drv/timer_avr.h @@ -43,20 +43,21 @@ #ifndef DRV_TIMER_AVR_H #define DRV_TIMER_AVR_H -#include "hw/hw_cpu.h" /* CLOCK_FREQ */ +#include /* CPU_FREQ */ -#include "cfg/cfg_timer.h" /* CONFIG_TIMER */ -#include /* uint8_t */ -#include /* DIV_ROUND */ +#include "cfg/cfg_timer.h" /* CONFIG_TIMER */ +#include /* uint8_t */ +#include /* DIV_ROUND */ +#include +#include /** * \name Values for CONFIG_TIMER. * * Select which hardware timer interrupt to use for system clock and softtimers. * \note The timer 1 overflow mode set the timer as a 24 kHz PWM. - * - * \{ + * $WIZ$ timer_select = "TIMER_ON_OUTPUT_COMPARE0", "TIMER_ON_OVERFLOW1", "TIMER_ON_OUTPUT_COMPARE2", "TIMER_ON_OVERFLOW3", "TIMER_DEFAULT" */ #define TIMER_ON_OUTPUT_COMPARE0 1 #define TIMER_ON_OVERFLOW1 2 @@ -64,7 +65,6 @@ #define TIMER_ON_OVERFLOW3 4 #define TIMER_DEFAULT TIMER_ON_OUTPUT_COMPARE0 ///< Default system timer -/* \} */ /* * Hardware dependent timer initialization. @@ -84,6 +84,11 @@ /// Type of time expressed in ticks of the hardware high-precision timer typedef uint8_t hptime_t; + INLINE hptime_t timer_hw_hpread(void) + { + return TCNT0; + } + #elif (CONFIG_TIMER == TIMER_ON_OVERFLOW1) #define TIMER_PRESCALER 1 @@ -96,6 +101,11 @@ /// Type of time expressed in ticks of the hardware high precision timer typedef uint16_t hptime_t; + INLINE hptime_t timer_hw_hpread(void) + { + return TCNT1; + } + #elif (CONFIG_TIMER == TIMER_ON_OUTPUT_COMPARE2) #define TIMER_PRESCALER 64 @@ -109,10 +119,14 @@ /** 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; + INLINE hptime_t timer_hw_hpread(void) + { + return TCNT2; + } + #elif (CONFIG_TIMER == TIMER_ON_OVERFLOW3) #define TIMER_PRESCALER 1 @@ -124,6 +138,12 @@ /// Type of time expressed in ticks of the hardware high precision timer typedef uint16_t hptime_t; + + INLINE hptime_t timer_hw_hpread(void) + { + return TCNT3; + } + #else #error Unimplemented value for CONFIG_TIMER @@ -131,13 +151,13 @@ /** 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) @@ -145,5 +165,6 @@ /** 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 */