57 lines
2.1 KiB
Mathematica
57 lines
2.1 KiB
Mathematica
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function eq_alsactl_write(fn, blob8)
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%%
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% Copyright (c) 2016, Intel Corporation
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% All rights reserved.
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%
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% Redistribution and use in source and binary forms, with or without
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% modification, are permitted provided that the following conditions are met:
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% * Redistributions of source code must retain the above copyright
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% notice, this list of conditions and the following disclaimer.
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% * Redistributions in binary form must reproduce the above copyright
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% notice, this list of conditions and the following disclaimer in the
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% documentation and/or other materials provided with the distribution.
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% * Neither the name of the Intel Corporation nor the
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% names of its contributors may be used to endorse or promote products
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% derived from this software without specific prior written permission.
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%
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% THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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% AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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% IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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% ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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% LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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% CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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% SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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% INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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% CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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% ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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% POSSIBILITY OF SUCH DAMAGE.
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%
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% Author: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
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%
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%% Write blob
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fh = fopen(fn, 'w');
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%% Pad blob length to multiple of four bytes
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n_orig = length(blob8);
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n_new = ceil(n_orig/4);
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blob8_new = zeros(1, n_new*4);
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blob8_new(1:n_orig) = blob8;
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%% Convert to 32 bit
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blob32 = zeros(1, n_new, 'uint32');
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k = 2.^[0 8 16 24];
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for i=1:n_new
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j = (i-1)*4;
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blob32(i) = blob8_new(j+1)*k(1) + blob8_new(j+2)*k(2) ...
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+ blob8_new(j+3)*k(3) + blob8_new(j+4)*k(4);
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end
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for i=1:n_new-1
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fprintf(fh, '%ld,', blob32(i));
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end
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fprintf(fh, '%ld,\n', blob32(end));
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fclose(fh);
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end
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