hbridge.h

Go to the documentation of this file.

/*
 * Copyright 2025 NXP
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef _HBRIDGE_H_
#define _HBRIDGE_H_
 
#include <zephyr/drivers/gpio.h>
#include <zephyr/drivers/pwm.h>
 
#define NXP_HBRIDGE_NUM_GPIOS 2
 
#define NXP_HBRIDGE_MAX_SPEED 100
 
#define NXP_HBRIDGE_MOTOR_INVERT BIT(0)
 
struct nxp_hbridge {
    const struct device *gpio_dev;
    const struct device *pwm_dev;
    uint32_t period;
    int lgpios[NXP_HBRIDGE_NUM_GPIOS];
    int rgpios[NXP_HBRIDGE_NUM_GPIOS];
    int lchan;
    int rchan;
    uint32_t lflags;
    uint32_t rflags;
};
 
enum nxp_hbridge_direction {
    NXP_HBRIDGE_DIRECTION_OFF = 0,
    NXP_HBRIDGE_DIRECTION_FORWARD = 1,
    NXP_HBRIDGE_DIRECTION_BACKWARDS = 2,
};
 
int nxp_hbridge_init(struct nxp_hbridge *hbridge);
 
int nxp_hbridge_set_direction(struct nxp_hbridge *hbridge, int direction);
 
int nxp_hbridge_set_speed(struct nxp_hbridge *hbridge, uint32_t speed);
 
#endif /* _HBRIDGE_H_ */