flight/pios/inc/pios_adc.h

   1 /**
   2  ******************************************************************************
   3  * @addtogroup PIOS PIOS Core hardware abstraction layer
   4  * @{
   5  * @addtogroup   PIOS_ADC ADC Functions
   6  * @brief STM32 ADC PIOS interface
   7  * @{
   8  *
   9  * @file       pios_adc.h
  10  * @author     The OpenPilot Team, http://www.openpilot.org Copyright (C) 2012.
  11  * @brief      ADC functions header.
  12  * @see        The GNU Public License (GPL) Version 3
  13  *
  14  *****************************************************************************/
  15 /*
  16  * This program is free software; you can redistribute it and/or modify
  17  * it under the terms of the GNU General Public License as published by
  18  * the Free Software Foundation; either version 3 of the License, or
  19  * (at your option) any later version.
  20  *
  21  * This program is distributed in the hope that it will be useful, but
  22  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  23  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  24  * for more details.
  25  *
  26  * You should have received a copy of the GNU General Public License along
  27  * with this program; if not, write to the Free Software Foundation, Inc.,
  28  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  29  */
  30
  31 #ifndef PIOS_ADC_H
  32 #define PIOS_ADC_H
  33
  34 // Maximum of 50 oversampled points
  35 #define PIOS_ADC_MAX_SAMPLES ((((PIOS_ADC_NUM_CHANNELS + PIOS_ADC_USE_ADC2) >> PIOS_ADC_USE_ADC2) << PIOS_ADC_USE_ADC2) * PIOS_ADC_MAX_OVERSAMPLING * 2 / 2)
  36
  37 typedef void (*ADCCallback)(float *data);
  38
  39 /* Public Functions */
  40 void PIOS_ADC_Config(uint32_t oversampling);
  41 int32_t PIOS_ADC_PinGet(uint32_t pin);
  42 float PIOS_ADC_PinGetVolt(uint32_t pin);
  43 int16_t *PIOS_ADC_GetRawBuffer(void);
  44 uint8_t PIOS_ADC_GetOverSampling(void);
  45 void PIOS_ADC_SetCallback(ADCCallback new_function);
  46 #if defined(PIOS_INCLUDE_FREERTOS)
  47 void PIOS_ADC_SetQueue(xQueueHandle data_queue);
  48 #endif
  49 extern void PIOS_ADC_DMA_Handler(void);
  50
  51 #endif /* PIOS_ADC_H */
  52
  53 /**
  54  * @}
  55  * @}
  56  */