text: /*
   * Copyright (c) 2015 Intel Corporation
   *
   * SPDX-License-Identifier: Apache-2.0
   */
  
  /**
   * @file
   * Public APIs for Pinmux drivers
   */
  
  #ifndef ZEPHYR_INCLUDE_DRIVERS_PINMUX_H_
  #define ZEPHYR_INCLUDE_DRIVERS_PINMUX_H_
  
  /**
   * @brief Pinmux Interface
   * @defgroup pinmux_interface Pinmux Interface
   * @ingroup io_interfaces
   * @{
   */
  
  #include <zephyr/types.h>
  #include <device.h>
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  #define PINMUX_FUNC_A		0
  #define PINMUX_FUNC_B		1
  #define PINMUX_FUNC_C		2
  #define PINMUX_FUNC_D		3
  #define PINMUX_FUNC_E		4
  #define PINMUX_FUNC_F		5
  #define PINMUX_FUNC_G		6
  #define PINMUX_FUNC_H		7
  #define PINMUX_FUNC_I		8
  #define PINMUX_FUNC_J		9
  #define PINMUX_FUNC_K		10
  #define PINMUX_FUNC_L		11
  #define PINMUX_FUNC_M		12
  #define PINMUX_FUNC_N		13
  #define PINMUX_FUNC_O		14
  #define PINMUX_FUNC_P		15
  
  #define PINMUX_PULLUP_ENABLE	(0x1)
  #define PINMUX_PULLUP_DISABLE	(0x0)
  
  #define PINMUX_INPUT_ENABLED	(0x1)
  #define PINMUX_OUTPUT_ENABLED	(0x0)
  
  /**
   * @typedef pmux_set
   * @brief Callback API upon setting a PIN's function
   * See pinmux_pin_set() for argument description
   */
  typedef int (*pmux_set)(struct device *dev, uint32_t pin, uint32_t func);
  /**
   * @typedef pmux_get
   * @brief Callback API upon getting a PIN's function
   * See pinmux_pin_get() for argument description
   */
  typedef int (*pmux_get)(struct device *dev, uint32_t pin, uint32_t *func);
  /**
   * @typedef pmux_pullup
   * @brief Callback API upon setting a PIN's pullup
   * See pinmix_pin_pullup() for argument description
   */
  typedef int (*pmux_pullup)(struct device *dev, uint32_t pin, uint8_t func);
  /**
   * @typedef pmux_input
   * @brief Callback API upon setting a PIN's input function
   * See pinmux_input() for argument description
   */
  typedef int (*pmux_input)(struct device *dev, uint32_t pin, uint8_t func);
  
  __subsystem struct pinmux_driver_api {
  	pmux_set set;
  	pmux_get get;
  	pmux_pullup pullup;
  	pmux_input input;
  };
  
  static inline int pinmux_pin_set(struct device *dev, uint32_t pin, uint32_t func)
  {
  	const struct pinmux_driver_api *api =
  		(const struct pinmux_driver_api *)dev->api;
  
  	return api->set(dev, pin, func);
  }
  
  static inline int pinmux_pin_get(struct device *dev, uint32_t pin, uint32_t *func)
  {
  	const struct pinmux_driver_api *api =
  		(const struct pinmux_driver_api *)dev->api;
  
  	return api->get(dev, pin, func);
  }
  
  static inline int pinmux_pin_pullup(struct device *dev, uint32_t pin, uint8_t func)
  {
  	const struct pinmux_driver_api *api =
  		(const struct pinmux_driver_api *)dev->api;
  
  	return api->pullup(dev, pin, func);
  }
  
  static inline int pinmux_pin_input_enable(struct device *dev, uint32_t pin,
  					  uint8_t func)
  {
  	const struct pinmux_driver_api *api =
  		(const struct pinmux_driver_api *)dev->api;
  
  	return api->input(dev, pin, func);
  }
  
  #ifdef __cplusplus
  }
  #endif
  
  /**
   *
   * @}
   */
  
  #endif /* ZEPHYR_INCLUDE_DRIVERS_PINMUX_H_ */
  