X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=drv%2Ftimer_avr.h;h=74414263123c9dbcdd838f6a460ea6b2e8d0ec24;hb=HEAD;hp=0ba8d52b0ce49db65cf5fae16fb0d009cad1833b;hpb=528790e0e4433fa1e1394cdfa23eb33dfd934185;p=bertos.git diff --git a/drv/timer_avr.h b/drv/timer_avr.h deleted file mode 100755 index 0ba8d52b..00000000 --- a/drv/timer_avr.h +++ /dev/null @@ -1,124 +0,0 @@ -/*! - * \file - * - * - * \version $Id$ - * - * \author Bernardo Innocenti - * \author Francesco Sacchi - * - * \brief Low-level timer module for AVR (interface). - */ - -/*#* - *#* $Log$ - *#* Revision 1.25 2005/07/19 07:26:37 bernie - *#* Refactor to decouple timer ticks from milliseconds. - *#* - *#* Revision 1.24 2005/04/11 19:10:28 bernie - *#* Include top-level headers from cfg/ subdir. - *#* - *#* Revision 1.23 2005/03/01 23:24:51 bernie - *#* Tweaks for avr-libc 1.2.x. - *#* - *#* Revision 1.21 2004/12/13 12:07:06 bernie - *#* DISABLE_IRQSAVE/ENABLE_IRQRESTORE: Convert to IRQ_SAVE_DISABLE/IRQ_RESTORE. - *#* - *#* Revision 1.20 2004/11/16 20:59:46 bernie - *#* Include explicitly. - *#* - *#* Revision 1.19 2004/10/19 08:56:41 bernie - *#* TIMER_STROBE_ON, TIMER_STROBE_OFF, TIMER_STROBE_INIT: Move from timer_avr.h to timer.h, where they really belong. - *#* - *#* Revision 1.18 2004/09/20 03:31:03 bernie - *#* Fix racy racy code. - *#*/ -#ifndef DRV_TIMER_AVR_H -#define DRV_TIMER_AVR_H - -#include /* CONFIG_TIMER */ -#include - -/*! - * 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. - */ -#define TIMER_ON_OUTPUT_COMPARE0 1 -#define TIMER_ON_OVERFLOW1 2 -#define TIMER_ON_OUTPUT_COMPARE2 3 -#define TIMER_ON_OVERFLOW3 4 - -/*! HW dependent timer initialization */ -#if (CONFIG_TIMER == TIMER_ON_OUTPUT_COMPARE0) - - #define TIMER_PRESCALER 64 - #define TIMER_HW_BITS 8 - #define DEFINE_TIMER_ISR SIGNAL(SIG_OUTPUT_COMPARE0) - #define TIMER_TICKS_PER_MSEC 1 - #define TIMER_HW_CNT OCR_DIVISOR - - //! Type of time expressed in ticks of the hardware high-precision timer - typedef uint8_t hptime_t; - -#elif (CONFIG_TIMER == TIMER_ON_OVERFLOW1) - - #define TIMER_PRESCALER 1 - #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 TIMER_TICKS_PER_MSEC (((TIMER_HW_HPTICKS_PER_SEC + TIMER_HW_CNT / 2) / TIMER_HW_CNT + 500) / 1000) - - //! Type of time expressed in ticks of the hardware high precision timer - typedef uint16_t hptime_t; - -#elif (CONFIG_TIMER == TIMER_ON_OUTPUT_COMPARE2) - - #define TIMER_PRESCALER 64 - #define TIMER_HW_BITS 8 - #define DEFINE_TIMER_ISR SIGNAL(SIG_OUTPUT_COMPARE2) - #define TIMER_TICKS_PER_MSEC 1 - /*! 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; - -#elif (CONFIG_TIMER == TIMER_ON_OVERFLOW3) - - #define TIMER_PRESCALER 1 - #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 TIMER_TICKS_PER_MSEC (((TIMER_HW_HPTICKS_PER_SEC + TIMER_HW_CNT / 2) / TIMER_HW_CNT + 500) / 1000) - - //! Type of time expressed in ticks of the hardware high precision timer - typedef uint16_t hptime_t; -#else - - #error Unimplemented value for CONFIG_TIMER -#endif /* CONFIG_TIMER */ - - -/*! Frequency of the hardware high precision timer */ -#define TIMER_HW_HPTICKS_PER_SEC ((CLOCK_FREQ + TIMER_PRESCALER / 2) / TIMER_PRESCALER) - -/*! - * System timer: additional division after the prescaler - * 12288000 / 64 / 192 (0..191) = 1 ms - */ -#define OCR_DIVISOR (((CLOCK_FREQ + TIMER_PRESCALER / 2) / TIMER_PRESCALER + TICKS_PER_SEC / 2) / TICKS_PER_SEC - 1) /* 191 */ - -/*! Not needed, IRQ timer flag cleared automatically */ -#define timer_hw_irq() do {} while (0) - - -#endif /* DRV_TIMER_AVR_H */