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LibrePilot/flight/PiOS/inc/pios_adc_priv.h

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/**
******************************************************************************
* @addtogroup PIOS PIOS Core hardware abstraction layer
* @{
* @addtogroup PIOS_ADC ADC Functions
* @brief PIOS interface for USART port
* @{
*
* @file pios_adc_priv.h
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
* @brief ADC private definitions.
* @see The GNU Public License (GPL) Version 3
*
*****************************************************************************/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef PIOS_ADC_PRIV_H
#define PIOS_ADC_PRIV_H
#include <pios.h>
#include <pios_stm32.h>
#include <pios_adc.h>
#include <fifo_buffer.h>
struct pios_adc_cfg {
struct stm32_dma dma;
uint32_t half_flag;
uint32_t full_flag;
};
struct pios_adc_dev {
const struct pios_adc_cfg *const cfg;
ADCCallback callback_function;
#if defined(PIOS_INCLUDE_FREERTOS)
xQueueHandle data_queue;
#endif
volatile int16_t *valid_data_buffer;
volatile uint8_t adc_oversample;
uint8_t dma_block_size;
uint16_t dma_half_buffer_size;
int16_t fir_coeffs[PIOS_ADC_MAX_SAMPLES+1] __attribute__ ((aligned(4)));
volatile int16_t raw_data_buffer[PIOS_ADC_MAX_SAMPLES] __attribute__ ((aligned(4))); // Double buffer that DMA just used
float downsampled_buffer[PIOS_ADC_NUM_CHANNELS] __attribute__ ((aligned(4)));
};
extern struct pios_adc_dev pios_adc_devs[];
extern uint8_t pios_adc_num_devices;
#endif /* PIOS_ADC_PRIV_H */
/**
* @}
* @}
*/