timer.c File Reference

#include <stdbool.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <platform.h>
#include "common/utils.h"
#include "common/atomic.h"
#include "nvic.h"
#include "gpio.h"
#include "system.h"
#include "timer.h"
#include "timer_impl.h"

Include dependency graph for timer.c:

Data Structures
struct	timerConfig_s
struct	timerChannelInfo_t
struct	timerInfo_t

Macros
#define	TIM_N(n)   (1 << (n))
#define	USED_TIMER_COUNT   BITCOUNT(USED_TIMERS)
#define	CC_CHANNELS_PER_TIMER   4
#define	TIM_IT_CCx(ch)   (TIM_IT_CC1 << ((ch) / 4))
#define	TIMER_INDEX(i)   BITCOUNT((TIM_N(i) - 1) & USED_TIMERS)
#define	_CASE_SHF   10
#define	_CASE_(tim, index)   case ((unsigned)tim >> _CASE_SHF): return index; break
#define	_CASE(i)   _CASE_(TIM##i##_BASE, TIMER_INDEX(i))
#define	_DEF(i)   TIM##i
#define	_TIM_IRQ_HANDLER2(name, i, j)
#define	_TIM_IRQ_HANDLER(name, i)

Typedefs
typedef struct timerConfig_s	timerConfig_t

Functions
void	configTimeBase (TIM_TypeDef *tim, uint16_t period, uint8_t mhz)
void	timerConfigure (const timerHardware_t *timerHardwarePtr, uint16_t period, uint8_t mhz)
void	timerChInit (const timerHardware_t *timHw, channelType_t type, int irqPriority)
void	timerChCCHandlerInit (timerCCHandlerRec_t *self, timerCCHandlerCallback *fn)
void	timerChOvrHandlerInit (timerOvrHandlerRec_t *self, timerOvrHandlerCallback *fn)
void	timerChConfigCallbacks (const timerHardware_t *timHw, timerCCHandlerRec_t *edgeCallback, timerOvrHandlerRec_t *overflowCallback)
void	timerChConfigCallbacksDual (const timerHardware_t *timHw, timerCCHandlerRec_t *edgeCallbackLo, timerCCHandlerRec_t *edgeCallbackHi, timerOvrHandlerRec_t *overflowCallback)
void	timerChITConfigDualLo (const timerHardware_t *timHw, FunctionalState newState)
void	timerChITConfig (const timerHardware_t *timHw, FunctionalState newState)
void	timerChClearCCFlag (const timerHardware_t *timHw)
void	timerChConfigGPIO (const timerHardware_t *timHw, GPIO_Mode mode)
void	timerChConfigIC (const timerHardware_t *timHw, bool polarityRising, unsigned inputFilterTicks)
void	timerChConfigICDual (const timerHardware_t *timHw, bool polarityRising, unsigned inputFilterTicks)
void	timerChICPolarity (const timerHardware_t *timHw, bool polarityRising)
volatile timCCR_t *	timerChCCRHi (const timerHardware_t *timHw)
volatile timCCR_t *	timerChCCRLo (const timerHardware_t *timHw)
volatile timCCR_t *	timerChCCR (const timerHardware_t *timHw)
void	timerChConfigOC (const timerHardware_t *timHw, bool outEnable, bool stateHigh)
void	timerInit (void)
void	timerStart (void)
void	timerForceOverflow (TIM_TypeDef *tim)

Variables
timerConfig_t	timerConfig [USED_TIMER_COUNT]
timerChannelInfo_t	timerChannelInfo [USABLE_TIMER_CHANNEL_COUNT]
timerInfo_t	timerInfo [USED_TIMER_COUNT]
TIM_TypeDef *const	usedTimers [USED_TIMER_COUNT]

Macro Definition Documentation

#define _CASE

(

i

)

_CASE_(TIM##i##_BASE, TIMER_INDEX(i))

#define _CASE_	(		tim,
			index
	)		case ((unsigned)tim >> _CASE_SHF): return index; break

#define _CASE_SHF   10

#define _DEF

(

i

)

TIM##i

#define _TIM_IRQ_HANDLER	(		name,
			i
	)

Value:

void name(void);                                                     \
    void name(void)                                                     \
    {                                                                   \
        timCCxHandler(TIM ## i, &timerConfig[TIMER_INDEX(i)]);          \
    } struct dummy

#define _TIM_IRQ_HANDLER2	(		name,
			i,
			j
	)

Value:

void name(void);                                                     \
    void name(void)                                                     \
    {                                                                   \
        timCCxHandler(TIM ## i, &timerConfig[TIMER_INDEX(i)]);          \
        timCCxHandler(TIM ## j, &timerConfig[TIMER_INDEX(j)]);          \
    } struct dummy

#define CC_CHANNELS_PER_TIMER   4

#define TIM_IT_CCx

(

ch

)

(TIM_IT_CC1 << ((ch) / 4))

#define TIM_N

(

n

)

(1 << (n))

#define TIMER_INDEX

(

i

)

BITCOUNT((TIM_N(i) - 1) & USED_TIMERS)

#define USED_TIMER_COUNT   BITCOUNT(USED_TIMERS)

Typedef Documentation

typedef struct timerConfig_s timerConfig_t

Function Documentation

void configTimeBase	(	TIM_TypeDef *	tim,
		uint16_t	period,
		uint8_t	mhz
	)

void timerChCCHandlerInit	(	timerCCHandlerRec_t *	self,
		timerCCHandlerCallback *	fn
	)

volatile timCCR_t* timerChCCR

(

const timerHardware_t *

timHw

)

volatile timCCR_t* timerChCCRHi

(

const timerHardware_t *

timHw

)

volatile timCCR_t* timerChCCRLo

(

const timerHardware_t *

timHw

)

void timerChClearCCFlag

(

const timerHardware_t *

timHw

)

void timerChConfigCallbacks	(	const timerHardware_t *	timHw,
		timerCCHandlerRec_t *	edgeCallback,
		timerOvrHandlerRec_t *	overflowCallback
	)

void timerChConfigCallbacksDual	(	const timerHardware_t *	timHw,
		timerCCHandlerRec_t *	edgeCallbackLo,
		timerCCHandlerRec_t *	edgeCallbackHi,
		timerOvrHandlerRec_t *	overflowCallback
	)

void timerChConfigGPIO	(	const timerHardware_t *	timHw,
		GPIO_Mode	mode
	)

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void timerChConfigIC	(	const timerHardware_t *	timHw,
		bool	polarityRising,
		unsigned	inputFilterTicks
	)

void timerChConfigICDual	(	const timerHardware_t *	timHw,
		bool	polarityRising,
		unsigned	inputFilterTicks
	)

void timerChConfigOC	(	const timerHardware_t *	timHw,
		bool	outEnable,
		bool	stateHigh
	)

void timerChICPolarity	(	const timerHardware_t *	timHw,
		bool	polarityRising
	)

void timerChInit	(	const timerHardware_t *	timHw,
		channelType_t	type,
		int	irqPriority
	)

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void timerChITConfig	(	const timerHardware_t *	timHw,
		FunctionalState	newState
	)

void timerChITConfigDualLo	(	const timerHardware_t *	timHw,
		FunctionalState	newState
	)

void timerChOvrHandlerInit	(	timerOvrHandlerRec_t *	self,
		timerOvrHandlerCallback *	fn
	)

void timerConfigure	(	const timerHardware_t *	timerHardwarePtr,
		uint16_t	period,
		uint8_t	mhz
	)

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void timerForceOverflow

(

TIM_TypeDef *

tim

)

Force an overflow for a given timer. Saves the current value of the counter in the relevant timerConfig's forcedOverflowTimerValue variable.

Parameters

TIM_Typedef

*tim The timer to overflow

Returns

void

void timerInit

(

void

)

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void timerStart

(

void

)

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Variable Documentation

timerChannelInfo_t timerChannelInfo[USABLE_TIMER_CHANNEL_COUNT]

timerConfig_t timerConfig[USED_TIMER_COUNT]

timerInfo_t timerInfo[USED_TIMER_COUNT]

TIM_TypeDef* const usedTimers[USED_TIMER_COUNT]

Initial value:

= {
#define _DEF(i) 


























}