stm32_pwm.h

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/***************************************************************************/
#ifndef STM32_PWM_H_
#define STM32_PWM_H_
 
#include <stdint.h>
#include <stdbool.h>
#include "no_os_irq.h"
#include "stm32_hal.h"
 
enum stm32_pwm_timer {
    STM32_PWM_TIMER_TIM = 0,
    STM32_PWM_TIMER_LPTIM = 1,
};
 
enum TimOCMode {
    TIM_OC_TOGGLE = 0,
    TIM_OC_PWM1 = 1,
    TIM_OC_PWM2 = 2,
};
 
enum stm32_pwm_trigger {
    PWM_TS_NONE,
    PWM_TS_ITR0,
    PWM_TS_ITR1,
    PWM_TS_ITR2,
    PWM_TS_ITR3,
    PWM_TS_ETR,
};
 
enum stm32_pwm_trigger_polarity {
    PWM_TRIG_POL_RISING,
    PWM_TRIG_POL_FALLING,
};
 
enum stm32_pwm_trigger_out {
    PWM_TRGO_RESET,
    PWM_TRGO_ENABLE,
    PWM_TRGO_UPDATE,
    PWM_TRGO_OC1,
    PWM_TRGO_OC1REF,
    PWM_TRGO_OC2REF,
    PWM_TRGO_OC3REF,
    PWM_TRGO_OC4REF,
};
 
enum stm32_pwm_slave_mode {
    STM32_PWM_SM_DISABLE,
    STM32_PWM_SM_TRIGGER,
    STM32_PWM_SM_EXTERNAL1,
    STM32_PWM_SM_GATED,
};

struct stm32_pwm_init_param {
    void *htimer;
    enum stm32_pwm_timer pwm_timer;
    uint32_t prescaler;
    bool timer_autoreload;
    enum TimOCMode mode;
    uint32_t timer_chn;
    bool complementary_channel;
    uint32_t (*get_timer_clock)(void);
    uint32_t clock_divider;
    enum stm32_pwm_slave_mode slave_mode;
    enum stm32_pwm_trigger trigger_source;
    enum stm32_pwm_trigger_out trigger_output;
    enum stm32_pwm_trigger_polarity trigger_polarity;
    /* Enable one pulse */
    bool onepulse_enable;
    /* Number of pulse repetitions */
    uint32_t repetitions;
    /* Enable dma */
    bool dma_enable;
    struct no_os_callback_desc timer_callback;
};

struct stm32_pwm_desc {
    void *htimer;
    enum stm32_pwm_timer pwm_timer;
    uint32_t prescaler;
    bool timer_autoreload;
    enum TimOCMode mode;
    uint32_t timer_chn;
    bool complementary_channel;
    uint32_t (*get_timer_clock)(void);
    uint32_t clock_divider;
    struct no_os_irq_ctrl_desc *nvic_tim;
    struct no_os_callback_desc timer_callback;
    /* Number of pulse repetitions */
    uint32_t repetitions;
    /* Enable dma */
    bool dma_enable;
    /* Enable one pulse */
    bool onepulse_enable;
};

extern const struct no_os_pwm_platform_ops stm32_pwm_ops;
 
#endif // STM32_PWM_H_