timer.c File Reference

#include "timer.h"

Functions
static uint32_t	TimerIntNumberGet (uint32_t ui32Base)
	Gets the timer interrupt number. More...
void	TimerConfigure (uint32_t ui32Base, uint32_t ui32Config)
	Configures the timer(s). More...
void	TimerLevelControl (uint32_t ui32Base, uint32_t ui32Timer, bool bInvert)
	Controls the output level. More...
void	TimerStallControl (uint32_t ui32Base, uint32_t ui32Timer, bool bStall)
	Controls the stall handling. More...
void	TimerWaitOnTriggerControl (uint32_t ui32Base, uint32_t ui32Timer, bool bWait)
	Controls the wait on trigger handling. More...
void	TimerIntRegister (uint32_t ui32Base, uint32_t ui32Timer, void(*pfnHandler)(void))
	Registers an interrupt handler for the timer interrupt in the dynamic interrupt table. More...
void	TimerIntUnregister (uint32_t ui32Base, uint32_t ui32Timer)
	Unregisters an interrupt handler for the timer interrupt in the dynamic interrupt table. More...
void	TimerMatchUpdateMode (uint32_t ui32Base, uint32_t ui32Timer, uint32_t ui32Mode)
	Sets the Match Register Update mode. More...
void	TimerIntervalLoadMode (uint32_t ui32Base, uint32_t ui32Timer, uint32_t ui32Mode)
	Sets the Interval Load mode. More...

Function Documentation

TimerIntNumberGet()

static uint32_t TimerIntNumberGet ( uint32_t  ui32Base )

static

Gets the timer interrupt number.

Given a timer base address, this function returns the corresponding interrupt number.

Parameters

ui32Base

is the base address of the timer module.

Returns

Returns a timer interrupt number, or -1 if ui32Base is invalid.

Referenced by TimerIntRegister(), and TimerIntUnregister().

{
    uint32_t ui32Int;

    // Loop through the table that maps timer base addresses to interrupt
    // numbers.
    switch(ui32Base)
    {
    case GPT0_BASE :
        ui32Int = INT_GPT0A;
        break;
    case GPT1_BASE :
        ui32Int = INT_GPT1A;
        break;
    case GPT2_BASE :
        ui32Int = INT_GPT2A;
        break;
    case GPT3_BASE :
        ui32Int = INT_GPT3A;
        break;
    default :
        ui32Int = 0x0;
    }

    // Return the interrupt number or (-1) if not base address is not matched.
    return (ui32Int);
}