opamp.h

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/*
 * Copyright 2025 NXP
 *
 * SPDX-License-Identifier: Apache-2.0
 */

 
#ifndef ZEPHYR_INCLUDE_DRIVERS_OPAMP_H_
#define ZEPHYR_INCLUDE_DRIVERS_OPAMP_H_

 
#include <zephyr/device.h>
#include <errno.h>
 
#ifdef __cplusplus
extern "C" {
#endif

enum opamp_gain {
        OPAMP_GAIN_1_7 = 0, 
        OPAMP_GAIN_1_3,     
        OPAMP_GAIN_1,       
        OPAMP_GAIN_5_3,     
        OPAMP_GAIN_2,       
        OPAMP_GAIN_11_5,    
        OPAMP_GAIN_3,       
        OPAMP_GAIN_4,       
        OPAMP_GAIN_13_3,    
        OPAMP_GAIN_7,       
        OPAMP_GAIN_8,       
        OPAMP_GAIN_15,      
        OPAMP_GAIN_16,      
        OPAMP_GAIN_31,      
        OPAMP_GAIN_32,      
        OPAMP_GAIN_33,      
        OPAMP_GAIN_63,      
        OPAMP_GAIN_64,      
};


enum opamp_functional_mode {
        OPAMP_FUNCTIONAL_MODE_DIFFERENTIAL = 0,
        OPAMP_FUNCTIONAL_MODE_INVERTING,
        OPAMP_FUNCTIONAL_MODE_NON_INVERTING,
        OPAMP_FUNCTIONAL_MODE_FOLLOWER,
        OPAMP_FUNCTIONAL_MODE_STANDALONE,
};
 
typedef int (*opamp_api_set_gain_t)(const struct device *dev, enum opamp_gain gain);
 
__subsystem struct opamp_driver_api {
        opamp_api_set_gain_t set_gain;
};


__syscall int opamp_set_gain(const struct device *dev, enum opamp_gain gain);
 
static inline int z_impl_opamp_set_gain(const struct device *dev, enum opamp_gain gain)
{
        return DEVICE_API_GET(opamp, dev)->set_gain(dev, gain);
}
 
#ifdef __cplusplus
}
#endif

 
#include <zephyr/syscalls/opamp.h>
 
#endif /* ZEPHYR_INCLUDE_DRIVERS_OPAMP_H_ */