Audio: Crossover: Fix paths after scripts move

The paths to topology and sof-ctl blobs are updated. The paths
to other setup scripts (common, eq) are set with a new helper
function crossover_paths.m.

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

Author: singalsu

src/audio/crossover/tune/crossover_coef_quant.m

@@ -3,8 +3,6 @@
 bits_iir = 32; % Q2.30
 qf_iir = 30;
 
-addpath ./../eq
-
 if length(lowpass) ~= length(highpass)
 	error("length of lowpass and highpass array do not match");
 end
@@ -27,5 +25,4 @@
 crossover_quant.lp_coef = cell2mat(crossover_quant.lp_coef);
 crossover_quant.hp_coef = cell2mat(crossover_quant.hp_coef);
 
-rmpath ./../eq
 end

src/audio/crossover/tune/crossover_gen_coefs.m

@@ -1,13 +1,12 @@
 function crossover = crossover_gen_coefs(fs, fc_low, fc_mid, fc_high)
 
-addpath ./../eq/
 switch nargin
 	case 2, crossover = crossover_generate_2way(fs, fc_low);
 	case 3, crossover = crossover_generate_3way(fs, fc_low, fc_mid);
 	case 4, crossover = crossover_generate_4way(fs, fc_low, fc_mid, fc_high);
 	otherwise, error("Invalid number of arguments");
 end
-rmpath ./../eq
+
 end
 
 function crossover_2way = crossover_generate_2way(fs, fc)

src/audio/crossover/tune/crossover_paths.m

@@ -0,0 +1,23 @@
+function crossover_paths(enable)
+
+% crossover_paths(enable)
+% enable - set to true to enable needed search path
+%          set to false to disable the search paths
+%
+
+% SPDX-License-Identifier: BSD-3-Clause
+%
+% Copyright (c) 2024, Intel Corporation. All rights reserved.
+
+	common = '../../../../tools/tune/common';
+	eq = '../../../../tools/tune/eq';
+	# After #9187 merge use this:
+	# eq = '../../eq_iir/tune';
+	if enable
+		addpath(common);
+		addpath(eq);
+	else
+		rmpath(common);
+		rmpath(eq);
+	end
+end

src/audio/crossover/tune/example_crossover.m

@@ -1,7 +1,5 @@
 function example_crossover()
 
-addpath ./../common
-
 % Sampling Frequency and Frequency cut-offs for crossover
 cr.fs = 48e3;
 cr.fc_low = 200;
@@ -30,17 +28,18 @@ function example_crossover()
 cr.sinks = [0 1 2 3];
 export_crossover(cr);
 
-rmpath ./../common
-
 end
 
 function export_crossover(cr)
 
+crossover_paths(true);
+
 endian = "little";
-tpath1 = '../../topology/topology1/m4/crossover';
-tpath2 = '../../topology/topology2/include/components/crossover';
-ctlpath3 = '../../ctl/ipc3/crossover';
-ctlpath4 = '../../ctl/ipc4/crossover';
+sof_tools = '../../../../tools';
+tpath1 = fullfile(sof_tools, 'topology/topology1/m4/crossover');
+tpath2 = fullfile(sof_tools, 'topology/topology2/include/components/crossover');
+ctlpath3 = fullfile(sof_tools, 'ctl/ipc3/crossover');
+ctlpath4 = fullfile(sof_tools, 'ctl/ipc4/crossover');
 
 str_way = sprintf('%dway', cr.num_sinks);
 str_freq = get_str_freq(cr);
@@ -100,6 +99,7 @@ function export_crossover(cr)
 % Plot Magnitude and Phase Response of each sink
 crossover_plot_freq(crossover.lp, crossover.hp, cr.fs, cr.num_sinks);
 
+crossover_paths(false);
 end
 
 % Frequencies part for filename