blob: 56b798889e1c618588ffb9c3b1fa03b195d55bcb [file] [log] [blame]
function eq_alsactl_write(fn, blob8)
%%
% Copyright (c) 2016, 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>
%
%% Write blob
fh = fopen(fn, 'w');
%% Pad blob length to multiple of four bytes
n_orig = length(blob8);
n_new = ceil(n_orig/4);
blob8_new = zeros(1, n_new*4);
blob8_new(1:n_orig) = blob8;
%% Convert to 32 bit
blob32 = zeros(1, n_new, 'uint32');
k = 2.^[0 8 16 24];
for i=1:n_new
j = (i-1)*4;
blob32(i) = blob8_new(j+1)*k(1) + blob8_new(j+2)*k(2) ...
+ blob8_new(j+3)*k(3) + blob8_new(j+4)*k(4);
end
for i=1:n_new-1
fprintf(fh, '%ld,', blob32(i));
end
fprintf(fh, '%ld,\n', blob32(end));
fclose(fh);
end