102 lines
3.1 KiB
C
102 lines
3.1 KiB
C
/*
|
|
* @copyright (c) 2023-2024, MR Development Team
|
|
*
|
|
* @license SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* @date 2023-12-10 MacRsh First version
|
|
*/
|
|
|
|
#ifndef _MR_PWM_H_
|
|
#define _MR_PWM_H_
|
|
|
|
#include "include/mr_api.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif /* __cplusplus */
|
|
|
|
#ifdef MR_USING_PWM
|
|
|
|
/**
|
|
* @brief PWM channel polarity.
|
|
*/
|
|
#define MR_PWM_POLARITY_NORMAL (0) /**< PWM normal polarity */
|
|
#define MR_PWM_POLARITY_INVERTED (1) /**< PWM inverted polarity */
|
|
|
|
/**
|
|
* @brief PWM configuration structure.
|
|
*/
|
|
struct mr_pwm_config
|
|
{
|
|
int state; /**< Channel state */
|
|
int polarity; /**< Channel polarity */
|
|
};
|
|
|
|
/**
|
|
* @brief PWM control command.
|
|
*/
|
|
#define MR_CTL_PWM_SET_CHANNEL MR_CTL_SET_OFFSET /**< Set channel */
|
|
#define MR_CTL_PWM_SET_CHANNEL_CONFIG MR_CTL_SET_CONFIG /**< Set channel config */
|
|
#define MR_CTL_PWM_SET_FREQ (0x01 << 8) /**< Set frequency */
|
|
|
|
#define MR_CTL_PWM_GET_CHANNEL MR_CTL_GET_OFFSET /**< Get channel */
|
|
#define MR_CTL_PWM_GET_CHANNEL_CONFIG MR_CTL_GET_CONFIG /**< Get channel config */
|
|
#define MR_CTL_PWM_GET_FREQ (-(0x01 << 8)) /**< Get frequency */
|
|
|
|
/**
|
|
* @brief PWM data type.
|
|
*/
|
|
typedef uint32_t mr_pwm_data_t; /**< PWM read/write data type */
|
|
|
|
/**
|
|
* @brief PWM information structure.
|
|
*/
|
|
struct mr_pwm_info
|
|
{
|
|
uint32_t clk; /**< Clock(MHz) */
|
|
uint32_t prescaler_max; /**< Prescaler max */
|
|
uint32_t period_max; /**< Period max */
|
|
};
|
|
|
|
/**
|
|
* @brief PWM structure.
|
|
*/
|
|
struct mr_pwm
|
|
{
|
|
struct mr_dev dev; /**< Device */
|
|
|
|
uint32_t freq; /**< Frequency */
|
|
uint32_t prescaler; /**< Prescaler */
|
|
uint32_t period; /**< Period */
|
|
uint32_t channel; /**< Channel */
|
|
uint32_t channel_polarity; /**< Channel polarity */
|
|
|
|
struct mr_pwm_info *info; /**< Information */
|
|
};
|
|
|
|
/**
|
|
* @brief PWM operations structure.
|
|
*/
|
|
struct mr_pwm_ops
|
|
{
|
|
int (*configure)(struct mr_pwm *pwm, int state);
|
|
int (*channel_configure)(struct mr_pwm *pwm, int channel, int state, int polarity);
|
|
void (*start)(struct mr_pwm *pwm, uint32_t prescaler, uint32_t period);
|
|
void (*write)(struct mr_pwm *pwm, int channel, uint32_t compare_value);
|
|
uint32_t (*read)(struct mr_pwm *pwm, int channel);
|
|
};
|
|
|
|
/**
|
|
* @addtogroup PWM.
|
|
* @{
|
|
*/
|
|
int mr_pwm_register(struct mr_pwm *pwm, const char *name, struct mr_drv *drv, struct mr_pwm_info *info);
|
|
/** @} */
|
|
#endif /* MR_USING_PWM */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif /* __cplusplus */
|
|
|
|
#endif /* _MR_PWM_H_ */
|