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65e02eeb25
accounting for the fact they are transferred in pairs when using ADC2 git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@2510 ebee16cc-31ac-478f-84a7-5cbb03baadba
67 lines
2.1 KiB
C
67 lines
2.1 KiB
C
/**
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******************************************************************************
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* @addtogroup PIOS PIOS Core hardware abstraction layer
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* @{
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* @addtogroup PIOS_ADC ADC Functions
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* @brief PIOS interface for USART port
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* @{
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*
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* @file pios_adc_priv.h
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* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
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* @brief ADC private definitions.
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* @see The GNU Public License (GPL) Version 3
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*
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*****************************************************************************/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef PIOS_ADC_PRIV_H
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#define PIOS_ADC_PRIV_H
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#include <pios.h>
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#include <pios_stm32.h>
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#include <pios_adc.h>
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#include <fifo_buffer.h>
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struct pios_adc_cfg {
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struct stm32_dma dma;
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uint32_t half_flag;
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uint32_t full_flag;
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};
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struct pios_adc_dev {
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const struct pios_adc_cfg *const cfg;
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ADCCallback callback_function;
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volatile int16_t *valid_data_buffer;
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volatile uint8_t adc_oversample;
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uint8_t dma_block_size;
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uint16_t dma_half_buffer_size;
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int16_t fir_coeffs[PIOS_ADC_MAX_SAMPLES+1] __attribute__ ((aligned(4)));
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volatile int16_t raw_data_buffer[PIOS_ADC_MAX_SAMPLES] __attribute__ ((aligned(4))); // Double buffer that DMA just used
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float downsampled_buffer[PIOS_ADC_NUM_CHANNELS] __attribute__ ((aligned(4)));
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};
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extern struct pios_adc_dev pios_adc_devs[];
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extern uint8_t pios_adc_num_devices;
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#endif /* PIOS_ADC_PRIV_H */
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/**
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* @}
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* @}
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*/
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