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#ifndef __SUNXI_HTIMER_H__
#define __SUNXI_HTIMER_H__

#include <stdint.h>
#include <stdio.h>
#include "platform.h"
#include "irqs.h"
#include "aw_types.h"
#include <spinlock.h>

#ifdef __cplusplus
extern "C" {
#endif

#ifndef BIT
#define BIT(_x) (1UL << (_x))
#endif

#define HTIMER_INFO(fmt, arg...) printf("HTIMER : %s()%d "fmt, __func__, __LINE__, ##arg)

#ifdef CONFIG_DRIVERS_HTIMER_DEBUG
#define HTIMER_ERR(fmt, arg...) printf("HTIMER : %s()%d "fmt, __func__, __LINE__, ##arg)
#else
#define HTIMER_ERR(fmt, arg...) do {}while(0)
#endif

typedef void (*timer_callback)(void *param);


#define HTIMER_IRQ_EN_REG   (SUNXI_HSTIMER_PBASE + 0x00)
#define HTIMER_IRQ_EN(val)  BIT(val)
#define HTIMER_IRQ_ST_REG   (SUNXI_HSTIMER_PBASE + 0x04)
#define HTIMER_CTL_REG(val) (SUNXI_HSTIMER_PBASE + (0x20 * val + 0x20))
#define HTIMER_CTL_ENABLE   BIT(0)
#define HTIMER_CTL_RELOAD   BIT(1)
#define HTIMER_CTL_CLK_PRES(val)        (((val) & 0x7) << 4)
#define HTIMER_CTL_ONESHOT          BIT(7)
#define HTIMER_INTVAL_LO_REG(val)       (SUNXI_HSTIMER_PBASE + (0x20 * (val) + 0x24))
#define HTIMER_INTVAL_HI_REG(val)       (SUNXI_HSTIMER_PBASE + (0x20 * (val) + 0x28))
#define HTIMER_CNTVAL_LO_REG(val)       (SUNXI_HSTIMER_PBASE + (0x20 * (val) + 0x2c))
#define HTIMER_CNTVAL_HI_REG(val)       (SUNXI_HSTIMER_PBASE + (0x20 * (val) + 0x30))

#define HTIMER_SYNC_TICKS           3

struct sunxi_htimer
{
    uint32_t timer_id;
    uint32_t ticks;
    uint32_t clk_rate;
    uint32_t irq;
    uint32_t min_delta_ticks;
    uint32_t max_delta_ticks;
    timer_callback callback;
    void *param;
};

int sunxi_htimer_set_oneshot(uint32_t delay_us, uint32_t timer, timer_callback callback, void *callback_param);
int sunxi_htimer_set_periodic(uint32_t delay_us, uint32_t timer, timer_callback callback, void *callback_param);
void sunxi_htimer_stop(uint32_t timer);
void sunxi_htimer_start(uint32_t timer, bool periodic);
void sunxi_htimer_init();

#ifdef __cplusplus
}
#endif

#endif