#ifndef __GPTIMER_H__ #define __GPTIMER_H__ #include "asm/gptimer_hw.h" extern const u32 lib_gptimer_src_lsb_clk; //时钟源选择lsb_clk, 单位:Hz extern const u32 lib_gptimer_src_std_clk; //时钟源选择std_x_clk, 单位:Hz extern const u8 lib_gptimer_timer_mode_en; //gptimer timer功能使能 extern const u8 lib_gptimer_pwm_mode_en; //gptimer pwm功能使能 extern const u8 lib_gptimer_capture_mode_en; //gptimer capture功能使能 extern const u8 lib_gptimer_auto_tid_en; //gptimer_tid 内部自动分配使能 enum gptimer_mode : u8 { GPTIMER_MODE_TIMER = 0, //定时模式 GPTIMER_MODE_PWM, //pwm模式 GPTIMER_MODE_CAPTURE_EDGE_RISE, //上升沿捕获 GPTIMER_MODE_CAPTURE_EDGE_FALL, //下降沿捕获 GPTIMER_MODE_CAPTURE_EDGE_ANYEDGE, //双边沿捕获 }; enum gptimer_para : u8 { //从寄存器当前状态获取timer参数 GPTIMER_PARA_PERIOD = 0, GPTIMER_PARA_FREQ, GPTIMER_PARA_DUTY, GPTIMER_PARA_CAPTURE, }; enum gptimer_err : u8 { //返回值类型 GPTIMER_ERR_INIT_FAIL = 0xFF, }; typedef void (*timer_irq_callback)(u32 tid, void *private_data); //回调函数 struct gptimer_timer { //计时（计数）器配置 u32 period_us; }; struct gptimer_pwm { //pwm配置 u32 freq; enum gpio_port port; u16 pin; u16 duty; //x10000 }; struct gptimer_capture { //捕获配置 u32 filter; //需要滤除的频率，单位 Hz u32 max_period; //最大捕获周期, 单位:us, 需要用到才配置,默认配置0 enum gpio_port port; u16 pin; }; struct gptimer_config { union { struct gptimer_timer timer; struct gptimer_pwm pwm; struct gptimer_capture capture; }; timer_irq_callback irq_cb; void *private_data; //用户参数 u8 irq_priority; enum gptimer_mode mode; //工作模式 }; //以下为对外 api 接口--------------------------------------------------------- u32 gptimer_init(const timer_dev timerx, const struct gptimer_config *gt_cfg); u32 gptimer_deinit(u32 tid); u32 gptimer_start(u32 tid); u32 gptimer_pause(u32 tid); u32 gptimer_resume(u32 tid); u32 gptimer_set_timer_period(u32 tid, u32 period_us); u32 gptimer_get_timer_period(u32 tid); u32 gptimer_set_pwm_freq(u32 tid, u32 freq); u32 gptimer_get_pwm_freq(u32 tid); u32 gptimer_set_pwm_duty(u32 tid, u32 duty); u32 gptimer_get_pwm_duty(u32 tid); u32 gptimer_pwm_flip(u32 tid); u32 gptimer_pwm_enable(u32 tid); u32 gptimer_pwm_disable(u32 tid); u32 gptimer_set_capture_edge_type(u32 tid, enum gptimer_mode edge_type); enum gptimer_mode gptimer_get_capture_edge_type(u32 tid); u32 gptimer_set_irq_callback(u32 tid, void (*irq_cb)(u32 tid, void *private_data)); enum gptimer_mode gptimer_get_work_mode(u32 tid); u32 gptimer_set_work_mode(u32 tid, enum gptimer_mode type); u32 gptimer_set_capture_filter(u32 tid, u32 filter); u32 gptimer_get_capture_filter(u32 tid); u32 gptimer_set_capture_count(u32 tid, u32 cnt); u32 gptimer_get_capture_count(u32 tid); u32 gptimer_get_capture_cnt2us(u32 tid); //捕获发生时调用有效 u32 gptimer_set_count(u32 tid, u32 cnt); u32 gptimer_get_count(u32 tid); u32 gptimer_set_prd(u32 tid, u32 prd); u32 gptimer_get_prd(u32 tid); void *gptimer_get_private_data(u32 tid); void gptimer_set_private_data(u32 tid, void *private_data); u32 gptimer_measure_time_init(const timer_dev timerx, u32 max_time_us); //比实际时间少约40us u32 gptimer_measure_time_start(u32 tid); u32 gptimer_measure_time_end(u32 tid); void gptimer_set_extern_clk(u32 tid, u32 clk_freq, enum gpio_port port, u16 pin, u8 enable); void gptimer_dump(); //以下为底层驱动接口，直接操作寄存器--------------------------------------------------------- u32 timer_hw_timer_init(GPTIMER *GPTIMERx, u32 period_us, u32 priority, void (*irq_cb)(u32 tid, void *private_data)); u32 timer_hw_pwm_init(GPTIMER *GPTIMERx, enum gpio_port port, u32 pin, u32 freq, u32 duty); u32 timer_hw_capture_init(GPTIMER *GPTIMERx, enum gpio_port port, u32 pin, u32 edge_type, u32 filter, u32 max_period, u32 priority, void (*irq_cb)(u32 tid, void *private_data)); // void timer_hw_deinit(GPTIMER *GPTIMERx); void timer_hw_timer_deinit(GPTIMER *GPTIMERx); void timer_hw_pwm_deinit(GPTIMER *GPTIMERx, enum gpio_port port, u32 pin); void timer_hw_capture_deinit(GPTIMER *GPTIMERx, enum gpio_port port, u32 pin, u32 filter); void timer_hw_start(GPTIMER *GPTIMERx, enum gptimer_mode mode); u32 timer_hw_pause(GPTIMER *GPTIMERx); u32 timer_hw_set_cur_para(GPTIMER *GPTIMERx, enum gptimer_para para_type, u32 para0, u32 para1); u32 timer_hw_get_cur_para(GPTIMER *GPTIMERx, enum gptimer_para para_type); void timer_hw_pwm_flip(GPTIMER *GPTIMERx); void timer_hw_pwm_enable(GPTIMER *GPTIMERx); void timer_hw_pwm_disable(GPTIMER *GPTIMERx); void timer_hw_set_irq_cb(GPTIMER *GPTIMERx, void (*irq_cb)(u32 tid, void *private_data), u8 priority); void timer_hw_set_work_mode(GPTIMER *GPTIMERx, enum gptimer_mode type); u32 timer_hw_get_work_mode(GPTIMER *GPTIMERx); u32 timer_hw_get_capture_filter(GPTIMER *GPTIMERx); void timer_hw_set_cnt(GPTIMER *GPTIMERx, int cnt); u32 timer_hw_get_cnt(GPTIMER *GPTIMERx); void timer_hw_set_prd(GPTIMER *GPTIMERx, u32 prd); u32 timer_hw_get_prd(GPTIMER *GPTIMERx); u32 hw_irflt_set_clk(u32 *clk_src_set, u32 *clk_div_set, u32 filter); GPTIMER *timer_hw_tid2timer(u32 tid); void timer_hw_clr_pnd(GPTIMER *GPTIMERx); u32 timer_hw_idle_check(GPTIMER *GPTIMERx); u32 timer_hw_tick2us(GPTIMER *GPTIMERx, u32 tick); void timer_hw_set_extern_clk(GPTIMER *GPTIMERx, u32 clk_freq, enum gpio_port port, u16 pin, u8 enable); #endif