small modifs + fixed boot files for sound

boot/linux-image-4.14.98-imx_12-4_arm64.deb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:74d6a69d76d03fb59bffd60d6c1d3229bb9307f5e64a1f2c8af6ce2233dffa0d
-size 11093740
+oid sha256:573a0f42c1f5aafd34c588369f35abc225be73fd7c79ac8f45a757b260d606dc
+size 11096552

boot/portiloop.dts

@@ -1,7 +1,7 @@
 /dts-v1/;
 /plugin/;
 
-///include/ "fsl-imx8mq-phanbell.dtb";
+///include/ "fsl-imx8mq-phanbell.dts";
 
 / {
 	compatible = "fsl,imx8mq-phanbell", "fsl,imx8mq";
@@ -78,13 +78,15 @@
 				#sound-dai-cells = <0>;
 				compatible = "fsl,sgtl5000";
 				reg = <0x0a>;
-
-				clocks = <&clk IMX8MQ_CLK_SAI2_ROOT>;
-				assigned-clocks = <&clk IMX8MQ_CLK_SAI2>;
-				assigned-clock-parents = <&clk IMX8MQ_AUDIO_PLL1_OUT>;
+				clocks = <&clk 211>;
+				assigned-clocks = <&clk 129>;
+				assigned-clock-parents = <&clk 27>;
 				assigned-clock-rates = <24576000>;
 
 				status = "okay";
+
+			        VDDA-supply = <&reg_apex>;
+			        VDDIO-supply = <&reg_apex>;
 			};
 		};
 	};
@@ -106,8 +108,8 @@
 				simple-audio-card,name = "sgtl5000";
 				simple-audio-card,format = "i2s";
 				simple-audio-card,widgets = "Headphone", "Headphones";
-				simple-audio-card,routing = "Headphones", "HPOUTL",
-				                            "Headphones", "HPOUTR";
+				simple-audio-card,routing = "Headphones", "HP_OUT",
+				                            "Headphones", "HP_OUT";
 
 				status = "okay";
 		
@@ -117,7 +119,7 @@
 		
 				audio_codec: simple-audio-card,codec {
 					sound-dai = <&sgtl5000>;
-					clocks = <&clk IMX8MQ_CLK_SAI2_ROOT>;
+					clocks = <&clk 211>;
 					frame-master;
 					bitclock-master;
 				};

portiloop/capture.py

@@ -445,15 +445,20 @@ class Capture:
         self._test_stimulus_lock = Lock()
         self._test_stimulus = False
         
-        mixers = alsaaudio.mixers()
-        if len(mixers) <= 0:
+        try:
+            mixers = alsaaudio.mixers()
+            if len(mixers) <= 0:
+                warnings.warn(f"No ALSA mixer found.")
+                self.mixer = DummyAlsaMixer()
+            elif 'PCM' in mixers:
+                self.mixer = alsaaudio.Mixer(control='PCM')
+            else:
+                warnings.warn(f"Could not find mixer PCM, using {mixers[0]} instead.")
+                self.mixer = alsaaudio.Mixer(control=mixers[0])
+        except ALSAAudioError as e:
             warnings.warn(f"No ALSA mixer found.")
             self.mixer = DummyAlsaMixer()
-        elif 'PCM' in mixers:
-            self.mixer = alsaaudio.Mixer(control='PCM')
-        else:
-            warnings.warn(f"Could not find mixer PCM, using {mixers[0]} instead.")
-            self.mixer = alsaaudio.Mixer(control=mixers[0])
+        
         self.volume = self.mixer.getvolume()[0]  # we will set the same volume on all channels
         
         

portiloop/notebooks/tests.ipynb

@@ -2,12 +2,25 @@
  "cells": [
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 1,
    "id": "16651843",
    "metadata": {
     "scrolled": false
    },
-   "outputs": [],
+   "outputs": [
+    {
+     "ename": "ALSAAudioError",
+     "evalue": "No such file or directory [default]",
+     "output_type": "error",
+     "traceback": [
+      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
+      "\u001b[0;31mALSAAudioError\u001b[0m                            Traceback (most recent call last)",
+      "\u001b[0;32m<ipython-input-1-c2044ba37313>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m\u001b[0m\n\u001b[1;32m      6\u001b[0m \u001b[0mmy_stimulator_class\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mSleepSpindleRealTimeStimulator\u001b[0m  \u001b[0;31m# you may also want to implement yours\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      7\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 8\u001b[0;31m \u001b[0mcap\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mCapture\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mdetector_cls\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mmy_detector_class\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mstimulator_cls\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mmy_stimulator_class\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
+      "\u001b[0;32m~/portiloop-software/portiloop/capture.py\u001b[0m in \u001b[0;36m__init__\u001b[0;34m(self, detector_cls, stimulator_cls)\u001b[0m\n\u001b[1;32m    446\u001b[0m         \u001b[0mself\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0m_test_stimulus\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0;32mFalse\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m    447\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m--> 448\u001b[0;31m         \u001b[0mmixers\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0malsaaudio\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mmixers\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m    449\u001b[0m         \u001b[0;32mif\u001b[0m \u001b[0mlen\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mmixers\u001b[0m\u001b[0;34m)\u001b[0m \u001b[0;34m<=\u001b[0m \u001b[0;36m0\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m    450\u001b[0m             \u001b[0mwarnings\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mwarn\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34mf\"No ALSA mixer found.\"\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
+      "\u001b[0;31mALSAAudioError\u001b[0m: No such file or directory [default]"
+     ]
+    }
+   ],
    "source": [
     "from portiloop.capture import Capture\n",
     "from portiloop.detection import SleepSpindleRealTimeDetector\n",