mtk-lk/platform/common/include/timer/mt_gpt_v1.h

/* Copyright Statement:
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#ifndef __MT6575_GPT_H__
#define __MT6575_GPT_H__
#include <platform/mt_typedefs.h>
#include <sys/types.h>

#define GPT_IRQEN_REG       ((volatile unsigned int*)(APXGPT_BASE))
#define GPT_IRQSTA_REG      ((volatile unsigned int*)(APXGPT_BASE+0x04))
#define GPT_IRQACK_REG      ((volatile unsigned int*)(APXGPT_BASE+0x08))

#define GPT5_CON_REG        ((volatile unsigned int*)(APXGPT_BASE+0x50))
#define GPT5_CLK_REG        ((volatile unsigned int*)(APXGPT_BASE+0x54))
#define GPT5_COUNT_REG      ((volatile unsigned int*)(APXGPT_BASE+0x58))
#define GPT5_COMPARE_REG    ((volatile unsigned int*)(APXGPT_BASE+0x5C))

#define GPT_MODE4_ONE_SHOT (0x00 << 4)
#define GPT_MODE4_REPEAT   (0x01 << 4)
#define GPT_MODE4_KEEP_GO  (0x02 << 4)
#define GPT_MODE4_FREERUN  (0x03 << 4)

#define GPT_CLEAR       2

#define GPT_ENABLE      1
#define GPT_DISABLE     0

#define GPT_CLK_SYS     (0x0 << 4)
#define GPT_CLK_RTC     (0x1 << 4)

#define GPT_DIV_BY_1        0
#define GPT_DIV_BY_2        1

extern void gpt_busy_wait_us(unsigned int timeout_us);
extern void gpt_busy_wait_ms(unsigned int timeout_ms);

extern unsigned long get_timer(unsigned long base);
extern void mdelay(unsigned long msec);
extern void udelay(unsigned long usec);
extern void mtk_timer_init(void);

void gpt_one_shot_irq(unsigned int ms);
int gpt_irq_init(void);
void gpt_irq_ack();
extern unsigned int gpt4_tick2time_us (unsigned int tick);
extern unsigned int gpt4_get_current_tick (void);
extern bool gpt4_timeout_tick (U32 start_tick, U32 timeout_tick);
extern U32 gpt4_time2tick_us (U32 time_us);

#endif  /* !__MT6575_GPT_H__ */