mirror of
https://github.com/Ai-Thinker-Open/Ai-Thinker-Open_RTL8710BX_ALIOS_SDK.git
synced 2025-03-19 19:22:55 +00:00
57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
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/*
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* Copyright (C) 2015-2017 Alibaba Group Holding Limited
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*/
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#ifndef HAL_PWM_H
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#define HAL_PWM_H
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typedef struct {
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float duty_cycle; /* the pwm duty_cycle */
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uint32_t freq; /* the pwm freq */
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} pwm_config_t;
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typedef struct {
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uint8_t port; /* pwm port */
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pwm_config_t config; /* spi config */
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void *priv; /* priv data */
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} pwm_dev_t;
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/**
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* Initialises a PWM pin
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*
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*
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* @param[in] pwm the PWM device
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*
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* @return 0 : on success, EIO : if an error occurred with any step
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*/
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int32_t hal_pwm_init(pwm_dev_t *pwm);
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/**
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* Starts Pulse-Width Modulation signal output on a PWM pin
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*
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* @param[in] pwm the PWM device
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*
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* @return 0 : on success, EIO : if an error occurred with any step
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*/
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int32_t hal_pwm_start(pwm_dev_t *pwm);
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/**
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* Stops output on a PWM pin
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*
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* @param[in] pwm the PWM device
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*
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* @return 0 : on success, EIO : if an error occurred with any step
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*/
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int32_t hal_pwm_stop(pwm_dev_t *pwm);
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/**
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* De-initialises an PWM interface, Turns off an PWM hardware interface
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*
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* @param[in] pwm the interface which should be de-initialised
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*
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* @return 0 : on success, EIO : if an error occurred with any step
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*/
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int32_t hal_pwm_finalize(pwm_dev_t *pwm);
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#endif /* HAL_PWM_H */
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