c91faf9008
Added an implementation of driver for Intel PDM digital microphone controller . Signed-off-by: Sathish Kuttan <sathish.k.kuttan@intel.com>
31 lines
627 B
C
31 lines
627 B
C
/*
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* Copyright (c) 2018, Intel Corporation
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* All rights reserved.
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*
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* Author: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
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* Sathish Kuttan <sathish.k.kuttan@intel.com>
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef __PDM_DECIM_FIR__H__
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#define __PDM_DECIM_FIR__H__
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#define DMIC_FIR_LIST_LENGTH 8
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/* Format for generated coefficients tables */
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struct pdm_decim {
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int decim_factor;
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int length;
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int shift;
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int relative_passband;
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int relative_stopband;
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int passband_ripple;
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int stopband_ripple;
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const s32_t *coef;
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};
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struct pdm_decim **pdm_decim_get_fir_list(void);
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#endif /* __PDM_DECIM_FIR__H__ */
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