mirror of https://github.com/thesofproject/sof.git
25 lines
557 B
Mathematica
25 lines
557 B
Mathematica
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function alsactl_write(fn, blob8)
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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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endfunction
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