//###########################################################################
//
// FILE:   F2806x_Cputimers.h
//
// TITLE:  F2806x Device CPUTIMERS Register Definitions.
//
//###########################################################################
// $TI Release: F2806x C/C++ Header Files and Peripheral Examples V135 $   
// $Release Date: Sep 8, 2012 $   
//###########################################################################

#ifndef F2806x_CPUTIMERS_H
#define F2806x_CPUTIMERS_H

#ifdef __cplusplus
extern "C" {
#endif


//---------------------------------------------------------------------------
// CPUTIMERS Individual Register Bit Definitions:

struct TCR_BITS {     // bits description
	Uint16	rsvd1:4;		// 3:0  	Reserved
	Uint16	TSS:1;			// 4	CPU-Timer Top Status Bit
	Uint16	TRB:1;			// 5	CPU-Timer Reload Bit
	Uint16	rsvd2:4;		// 9:6	Reserved
	Uint16	SOFT:1;			// 10	CPU-Timer Emulation Mode
	Uint16	FREE:1;			// 11 	CPU-Timer Emulation Mode
	Uint16	rsvd3:2;		// 13:12	Reserved
	Uint16	TIE:1;			// 14	CPU-Timer Interrupt Enable
	Uint16	TIF:1;			// 15	CPU-Timer Interrupt Flag
};

union TCR_REG {
	Uint16 all;
	struct TCR_BITS	bit;
};

struct TPR_BITS {     // bits description
	Uint16	TDDR:8;			// 7:0  	CPU-Timer Divide-Down
	Uint16	PSC:8;			// 15:8	CPU-Timer Prescale Counter
};

union TPR_REG {
	Uint16 all;
	struct TPR_BITS	bit;
};

struct TPRH_BITS {     // bits description
	Uint16	TDDRH:8;		// 7:0  	CPU-Timer Divide-Down High Bits
	Uint16	PSCH:8;			// 15:8	CPU-Timer Prescale Counter High Bits
};

union TPRH_REG {
	Uint16 all;
	struct TPRH_BITS	bit;
};

// TIM, TIMH: Timer register definitions:
struct TIM_REG {
   Uint16  LSW;
   Uint16  MSW;
};

union TIM_GROUP {
   Uint32          all;
   struct TIM_REG  half;
};

// PRD, PRDH: Period register definitions:
struct PRD_REG {
   Uint16  LSW;
   Uint16  MSW;
};

union PRD_GROUP {
   Uint32          all;
   struct PRD_REG  half;
};

struct CPUTIMER_REGS {
	union TIM_GROUP 	TIM;   		// Timer counter register
   	union PRD_GROUP 	PRD;   		// Period register
	union	TCR_REG		TCR;		// CPU-Timer Control Register
	Uint16				rsvd1;		// Reserved
	union	TPR_REG		TPR;		// CPU-Timer Prescale Register
	union	TPRH_REG	TPRH;		// CPU-Timer Prescale Register High
};

//---------------------------------------------------------------------------
// Cputimers External References & Function Declarations:
//
//---------------------------------------------------------------------------
// CPU Timer Support Variables:
//
struct CPUTIMER_VARS {
   volatile struct  CPUTIMER_REGS  *RegsAddr;
   Uint32    InterruptCount;
   float   CPUFreqInMHz;
   float   PeriodInUSec;
};

//---------------------------------------------------------------------------
// Function prototypes and external definitions:
//
void InitCpuTimers(void);
void ConfigCpuTimer(struct CPUTIMER_VARS *Timer, float Freq, float Period);

extern volatile struct CPUTIMER_REGS CpuTimer0Regs;
extern struct CPUTIMER_VARS CpuTimer0;

extern volatile struct CPUTIMER_REGS CpuTimer1Regs;
extern volatile struct CPUTIMER_REGS CpuTimer2Regs;

extern struct CPUTIMER_VARS CpuTimer1;
extern struct CPUTIMER_VARS CpuTimer2;

//---------------------------------------------------------------------------
// Usefull Timer Operations:
//
// Start Timer:
#define StartCpuTimer0()   CpuTimer0Regs.TCR.bit.TSS = 0

// Stop Timer:
#define StopCpuTimer0()   CpuTimer0Regs.TCR.bit.TSS = 1

// Reload Timer With period Value:
#define ReloadCpuTimer0() CpuTimer0Regs.TCR.bit.TRB = 1

// Read 32-Bit Timer Value:
#define ReadCpuTimer0Counter() CpuTimer0Regs.TIM.all

// Read 32-Bit Period Value:
#define ReadCpuTimer0Period() CpuTimer0Regs.PRD.all

// Start Timer:
#define StartCpuTimer1()   CpuTimer1Regs.TCR.bit.TSS = 0
#define StartCpuTimer2()   CpuTimer2Regs.TCR.bit.TSS = 0

// Stop Timer:
#define StopCpuTimer1()   CpuTimer1Regs.TCR.bit.TSS = 1
#define StopCpuTimer2()   CpuTimer2Regs.TCR.bit.TSS = 1

// Reload Timer With period Value:
#define ReloadCpuTimer1() CpuTimer1Regs.TCR.bit.TRB = 1
#define ReloadCpuTimer2() CpuTimer2Regs.TCR.bit.TRB = 1

// Read 32-Bit Timer Value:
#define ReadCpuTimer1Counter() CpuTimer1Regs.TIM.all
#define ReadCpuTimer2Counter() CpuTimer2Regs.TIM.all

// Read 32-Bit Period Value:
#define ReadCpuTimer1Period() CpuTimer1Regs.PRD.all
#define ReadCpuTimer2Period() CpuTimer2Regs.PRD.all
#ifdef __cplusplus
}
#endif /* extern "C" */


#endif  // end of F2806x_CPUTIMERS_H definition
//===========================================================================
// End of file.
//===========================================================================
