gp_timers.h.svn-base

Spearhead2000 的 USB驱动程序

#ifndef __GP_TIMERS_H
#define __GP_TIMERS_H

extern void gptSetTimer(unsigned int timer, unsigned int control, unsigned int value);
extern unsigned int gptGetTimerVal(unsigned int timer);
extern void gptRestart(unsigned int timer);
extern void gptInterrupt(unsigned int vector);
extern void gptInit(void);
extern void gptTest(void);
extern void gpt_test(void);

#define APB_GP_TIMERS1_BASE   0x12001080 /*for GPT0*/
#define APB_GP_TIMERS2_BASE   0x12001100 /*for GPT1*/
#define APB_GP_TIMERS3_BASE   0x12002080 /*for GPT2*/
#define APB_GP_TIMERS4_BASE   0x12002100 /*for GPT3*/

typedef struct GPTController
{
  unsigned int TIMER_CONTROL_REG;
  unsigned int TIMER_STATUS_RES_INT_ACK;
  unsigned int TIMER_COMPARE_REG;
  unsigned int TIMER_COUNT_REG;
  unsigned int TIMER_RISING_EDGE_CAPTURE;
  unsigned int TIMER_FALLING_EDGE_CAPTURE;
} GPTController;

#define GPT1Cntl ((volatile struct GPTController*) (APB_GP_TIMERS1_BASE))
#define GPT2Cntl ((volatile struct GPTController*) (APB_GP_TIMERS2_BASE))
#define GPT3Cntl ((volatile struct GPTController*) (APB_GP_TIMERS3_BASE))
#define GPT4Cntl ((volatile struct GPTController*) (APB_GP_TIMERS4_BASE))

#define  TIMER1	     1
#define  TIMER2	     2
#define  TIMER3	     3
#define  TIMER4	     4

/* TIMER values */
#define  GPT_FREQ_66_5Mhz    0x0000
#define  GPT_FREQ_33_25Mhz   0x0001
#define  GPT_FREQ_16_625Mhz  0x0002
#define  GPT_FREQ_8_313Mhz   0x0003
#define  GPT_FREQ_4_156Mhz   0x0004
#define  GPT_FREQ_2_078Mhz   0x0005
#define  GPT_FREQ_1_039Mhz   0x0006
#define  GPT_FREQ_519_531Khz 0x0007
#define  GPT_FREQ_259_766Khz 0x0008

#define  GPT_SINGLE_SHOT     0x0010
#define  GPT_AUTO_RELOAD     0x0000

#define  GPT_ENAB	     0x0020

#define  GPT_CAPT_NONE	     0x0000 // capture on rise edge
#define  GPT_CAPT_R	     0x0040 // capture on rise edge
#define  GPT_CAPT_F	     0x0080 // capture on fall edge
#define  GPT_CAPT_RF	     0x00C0 // capture on rise and fall edge

#define  GPT_MATCH_INT       0x0100
#define  GPT_FEDGE_INT       0x0200
#define  GPT_REDGE_INT       0x0400

#define  GPT_MATCH	     0x0001
#define  GPT_FEDGE	     0x0002
#define  GPT_REDGE	     0x0004

#endif //__GP_TIMERS_H