94 lines
2.0 KiB
C
94 lines
2.0 KiB
C
/*
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* This file is subject to the terms of the GFX License, v1.0. If a copy of
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* the license was not distributed with this file, you can obtain one at:
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*
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* http://chibios-gfx.com/license.html
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*/
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#ifndef _GAUDIN_LLD_H
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#define _GAUDIN_LLD_H
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#include "gfx.h"
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#if GFX_USE_GADC || defined(__DOXYGEN__)
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/*===========================================================================*/
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/* Type definitions */
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/*===========================================================================*/
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/**
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* @brief The structure passed to start a audio conversion
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* @note We use the structure instead of parameters purely to save
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* interrupt stack space which is very limited in some platforms.
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* @{
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*/
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typedef struct gaudin_params_t {
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uint16_t channel;
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uint32_t frequency;
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audin_sample_t *buffer;
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size_t bufcount;
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size_t samplesPerEvent;
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} gaudin_params;
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/** @} */
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/**
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* @brief These routines are the callbacks that the driver uses.
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* @details Defined in the high level GAUDIN code.
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*
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* @iclass
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* @notapi
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*
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* @{
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*/
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/**
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* @param[in] buffer The buffer
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* @param[in] n The amount of samples
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* */
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extern void GAUDIN_ISR_CompleteI(audin_sample_t *buffer, size_t n);
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extern void GAUDIN_ISR_ErrorI(void);
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/**
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* @}
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*/
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/*===========================================================================*/
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/* External declarations. */
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/*===========================================================================*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Initialise the driver
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*
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* @param[in] paud Initialisation parameters
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*
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* @api
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*/
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void gaudin_lld_init(const gaudin_params *paud);
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/**
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* @brief Start the audio input sampling
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*
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* @api
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*/
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void gadc_lld_start(void);
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/**
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* @brief Stop the audio input sampling
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*
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* @api
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*/
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void gadc_lld_stop(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* GFX_USE_GADC */
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#endif /* _GADC_LLD_H */
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/** @} */
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