Audio: DCblock: Tune: Prefix top level functions with sof_

This patch renames with prefix sof_ all the top level functions
for dcblock blobs design.

Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>

src/audio/dcblock/tune/sof_dcblock_build_blob.m

@@ -1,4 +1,4 @@
-function blob8 = dcblock_build_blob(R_coeffs, endian, ipc_ver)
+function blob8 = sof_dcblock_build_blob(R_coeffs, endian, ipc_ver)
 
 %% Settings
 qy_R = 30;

src/audio/dcblock/tune/sof_dcblock_paths.m

@@ -1,4 +1,4 @@
-function dcblock_paths(enable)
+function sof_dcblock_paths(enable)
 
 % dcblock_paths(enable)
 % enable - set to true to enable needed search path

src/audio/dcblock/tune/sof_dcblock_plot_stepfn.m

@@ -1,4 +1,4 @@
-function dcblock_plot_stepfn(R, fs)
+function sof_dcblock_plot_stepfn(R, fs)
 % Plot the step response of a DC Blocking Filter
 % For a DC Blocking filter: H(z) = (1-1/z)/(1 - R/z)
 % Therefore the coefficients are b = [1 -1], a = [1 -R]

src/audio/dcblock/tune/sof_dcblock_plot_transferfn.m

@@ -1,4 +1,4 @@
-function dcblock_plot_transferfn(R, fs)
+function sof_dcblock_plot_transferfn(R, fs)
 % Plot the transfer function.
 % For a DC Blocking filter: H(z) = (1-1/z)/(1 - R/z)
 % Therefore the coefficients are b = [1 -1], a = [1 -R]

src/audio/dcblock/tune/sof_example_dcblock.m

@@ -1,4 +1,4 @@
-function example_dcblock()
+function sof_example_dcblock()
 
 % Default blob, about 150 Hz cut-off @ 48 kHz
 prm.fc = [];
@@ -52,32 +52,32 @@ else
 	R_coeffs = R * ones(1, channels);
 end
 
-dcblock_paths(true);
+sof_dcblock_paths(true);
 
-blob8 = dcblock_build_blob(R_coeffs, endian);
-blob8_ipc4 = dcblock_build_blob(R_coeffs, endian, 4);
+blob8 = sof_dcblock_build_blob(R_coeffs, endian);
+blob8_ipc4 = sof_dcblock_build_blob(R_coeffs, endian, 4);
 
 % Generate output files
 tplg_write(tplg1_fn, blob8, "DCBLOCK", ...
-	   "Exported with script example_dcblock.m", ...
-	   "cd tools/tune/dcblock; octave example_dcblock.m");
+	   "Exported with script sof_example_dcblock.m", ...
+	   "cd tools/tune/dcblock; octave sof_example_dcblock.m");
 sof_ucm_blob_write(blob3_fn, blob8);
 alsactl_write(alsa3_fn, blob8);
 
 tplg2_write(tplg2_fn, blob8_ipc4, "dcblock_config", ...
-	    "Exported with script example_dcblock.m" , ...
-	    "cd tools/tune/dcblock; octave example_dcblock.m");
+	    "Exported with script sof_example_dcblock.m" , ...
+	    "cd tools/tune/dcblock; octave sof_example_dcblock.m");
 sof_ucm_blob_write(blob4_fn, blob8_ipc4);
 alsactl_write(alsa4_fn, blob8_ipc4);
 
 % Plot Filter's Transfer Function and Step Response
 % As an example, plot the graphs of the first coefficient
 fs = 48e3;
-dcblock_plot_transferfn(R_coeffs(1), fs);
+sof_dcblock_plot_transferfn(R_coeffs(1), fs);
 figure
-dcblock_plot_stepfn(R_coeffs(1), fs);
+sof_dcblock_plot_stepfn(R_coeffs(1), fs);
 
-dcblock_paths(false);
+sof_dcblock_paths(false);
 
 end