#include "regs_base.h"
#include "irq_num.h"
#include "btm_init.h"


static sdrv_btm_t gstsdrv_btm_timer0;
sdrv_btm_t        gstsdrv_btm_timer1;

volatile uint8_t Btm10ms = 0;
volatile uint8_t Btm1ms = 0;


#define DEVICE_BASE(dev) _DEVICE_BASE(dev)
#define _DEVICE_BASE(dev) APB_##dev##_BASE

#define DEVICE_INTR(dev) _DEVICE_INTR(dev)
#define _DEVICE_INTR(dev) dev##_INTR_NUM



/*SDRV_BTM_G0时钟来源于APB clock, APB clock等于150MHz*/
/*SDRV_BTM_G0分频之后，clock等于1M*/
static sdrv_btm_cfg_t timer0_config = {
    .base = DEVICE_BASE(BTM2),
    .irq = DEVICE_INTR(BTM2_O_BTM),
    .tmr_id = SDRV_BTM_G0,
    .tmr_cfg = {
        .si_val = 74,                          /*输入时钟每(si_val + 1)cycle, G0计数器增加inc_val个*/
        .inc_val = 1,
        .frc_rld_rst_cnt_en = true,             /*默认是true，表示初始化时是否对counter清零。*/
        .term_use_mode = SDRV_BTM_DIRECT,       /*设置overflow值立即生效，而不是等到下一周期生效。*/
        .cmp_use_mode = SDRV_BTM_DIRECT,        /*设置compare值立即生效，而不是等到下一周期生效。*/
        .cnt_dir = SDRV_BTM_CNT_UP,             /*设置计数器的值是向上增长*/
        .cnt_mode = SDRV_BTM_CONTINOUS_MODE,    /*设置计数器是连续模式*/
    }
};


/*SDRV_BTM_G1时钟来源于外部晶振，等于24MHz*/
/*SDRV_BTM_G1分频之后，clock等于1M*/
static sdrv_btm_cfg_t timer1_config = {
    .base = DEVICE_BASE(BTM2),
    .irq = DEVICE_INTR(BTM2_O_BTM),
    .tmr_id = SDRV_BTM_G1,
    .tmr_cfg = {
        .si_val = 23,
        .inc_val = 1,
        .frc_rld_rst_cnt_en = true,
        .term_use_mode = SDRV_BTM_DIRECT,
        .cmp_use_mode = SDRV_BTM_DIRECT,
        .cnt_dir = SDRV_BTM_CNT_UP,
        .cnt_mode = SDRV_BTM_CONTINOUS_MODE,
    }
};

//回调处理，10ms定时标志
static void timer1_handle(void *arg)
{
    static int timer1_count = 0;
    timer1_count++;
    
    Btm1ms = 1;
    
    if(timer1_count >= 10)
    {
      timer1_count = 0;
      Btm10ms = 1;          
    }       
}


/*启用g1计数器*/
int btm_init(void)
{    
    sdrv_btm_init(&gstsdrv_btm_timer1, &timer0_config);//定时器1初始化
    sdrv_btm_set_callback(&gstsdrv_btm_timer1, timer1_handle, &gstsdrv_btm_timer1);//设定回调函数
    sdrv_btm_start(&gstsdrv_btm_timer1, BTM_TYPE_PERIOD, BTM_TIME_US, 1000);//设定1000us定时
            
    sdrv_btm_init(&gstsdrv_btm_timer0, &timer1_config);//定时器0初始化
    sdrv_btm_start(&gstsdrv_btm_timer0, BTM_TYPE_PERIOD, BTM_TIME_MS, ~0);//设定1ms定时
    return 0;
}

//获取当前计数器时间,lwip用
uint32_t current_time(void)
{
    return sdrv_btm_get_current_time(&gstsdrv_btm_timer0) / 1000;
}

//获取当前计数器时间us
uint32_t getCurrentTime(void)
{
    return sdrv_btm_get_current_time(&gstsdrv_btm_timer0);
}