source: asp3_tinet_ecnl_rx/trunk/asp3_dcre/mbed/hal/analogin_api.h@ 374

/** \addtogroup hal */
/** @{*/
/* mbed Microcontroller Library
 * Copyright (c) 2006-2013 ARM Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#ifndef MBED_ANALOGIN_API_H
#define MBED_ANALOGIN_API_H

#include "device.h"

#if DEVICE_ANALOGIN

#ifdef __cplusplus
extern "C" {
#endif

/** Analogin hal structure. analogin_s is declared in the target's hal
 */
typedef struct analogin_s analogin_t;

/**
 * \defgroup hal_analogin Analogin hal functions
 * @{
 */

/** Initialize the analogin peripheral
 *
 * Configures the pin used by analogin.
 * @param obj The analogin object to initialize
 * @param pin The analogin pin name
 */
void analogin_init(analogin_t *obj, PinName pin);

/** Read the input voltage, represented as a float in the range [0.0, 1.0]
 *
 * @param obj The analogin object
 * @return A floating value representing the current input voltage
 */
float analogin_read(analogin_t *obj);

/** Read the value from analogin pin, represented as an unsigned 16bit value
 *
 * @param obj The analogin object
 * @return An unsigned 16bit value representing the current input voltage
 */
uint16_t analogin_read_u16(analogin_t *obj);

/**@}*/

#ifdef __cplusplus
}
#endif

#endif

#endif

/** @}*/