| /* |
| * Copyright (c) 2018, Intel Corporation |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * * Neither the name of the Intel Corporation nor the |
| * names of its contributors may be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| * |
| * Author: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com> |
| * |
| */ |
| |
| /* PDM decimation FIR filters */ |
| |
| #include "pdm_decim_fir.h" |
| #include "pdm_decim_int32_02_4288_5100_010_095.h" |
| #include "pdm_decim_int32_02_4375_5100_010_095.h" |
| #include "pdm_decim_int32_03_3850_5100_010_095.h" |
| #include "pdm_decim_int32_03_4375_5100_010_095.h" |
| #include "pdm_decim_int32_04_4375_5100_010_095.h" |
| #include "pdm_decim_int32_05_4331_5100_010_095.h" |
| #include "pdm_decim_int32_06_4156_5100_010_095.h" |
| #include "pdm_decim_int32_08_4156_5380_010_090.h" |
| |
| #define DMIC_FIR_LIST_LENGTH 8 |
| |
| /* Note: Higher spec filter must be before lower spec filter |
| * if there are multiple filters for a decimation factor. The naming |
| * scheme of coefficients set is: |
| * <type>_<decim factor>_<rel passband>_<rel stopband>_<ripple>_<attenuation> |
| */ |
| struct pdm_decim *fir_list[DMIC_FIR_LIST_LENGTH] = { |
| &pdm_decim_int32_02_4375_5100_010_095, |
| &pdm_decim_int32_02_4288_5100_010_095, |
| &pdm_decim_int32_03_4375_5100_010_095, |
| &pdm_decim_int32_03_3850_5100_010_095, |
| &pdm_decim_int32_04_4375_5100_010_095, |
| &pdm_decim_int32_05_4331_5100_010_095, |
| &pdm_decim_int32_06_4156_5100_010_095, |
| &pdm_decim_int32_08_4156_5380_010_090, |
| }; |
