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 % %% 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