TinyAlsa: Add support for testing using tinycap and tinyplay..

The parameter has been added to the lib.sh library,
allowing the selection of tinyalsa as the testing tool.

Signed-off-by: Arkadiusz Cholewinski <arkadiuszx.cholewinski@intel.com>

Author: gbarkadiusz

README.md

@@ -53,11 +53,13 @@ Usage: ./check-playback.sh [OPTION]
     ...
 ```
 
-Some tests support SOF_ALSA_OPTS, SOF_APLAY_OPTS and SOF_ARECORD_OPTS,
+Some tests support SOF_TINY_ALSA, SOF_ALSA_OPTS, SOF_APLAY_OPTS and SOF_ARECORD_OPTS,
 work in progress. Where supported, optional parameters in SOF_APLAY_OPTS
 and SOF_ARECORD_OPTS are passed to all aplay and arecord
 invocations. SOF_ALSA_OPTS parameters are passed to both aplay and
-arecord. Warning these environments variables do NOT support parameters
+arecord. SOF_TINY_ALSA is used to select tinyalsa as testing tool.
+Set SOF_TINY_ALSA to true to force using tinyasla.
+Warning these environments variables do NOT support parameters
 with whitespace or globbing characters, in other words this does NOT
 work:
 

case-lib/lib.sh

@@ -752,17 +752,76 @@ func_lib_check_pa()
 # However, 1. arrays would complicate the user interface 2. ALSA does not
 # seem to need arguments with whitespace or globbing characters.
 
+# SOF_TINY_ALSA:
+# If set to true, the function will use the tinyalsa instead of alsa to test audio.
+# When SOF_TINY_ALSA is not true, the functions use alsa with the provided ALSA options.
+
+# Function to extract the card number and device number from $dev option (e.g., hw:0,10)
+parse_audio_device() {
+    # Extract the card number (e.g., "0" from hw:0,10)
+    card_nr=$(printf '%s' "$dev" | cut -d ':' -f2 | cut -d ',' -f1)
+
+    # Extract the device number (e.g., "10" from hw:0,10)
+    dev_nr=$(printf '%s' "$dev" | cut -d ',' -f2)
+}
+
+# Function to extract the numeric format value from the $fmt_elem option
+extract_format_number() {
+    # (e.g., extracting '16' from 'S16_LE')
+    # shellcheck disable=SC2154
+    format=$(printf '%s' "$fmt_elem" | grep '[0-9]\+' -o)
+}
+
+# Initialize the parameters using for audio testing.
+initialize_audio_params()
+{
+   # shellcheck disable=SC2034
+   channel=$(func_pipeline_parse_value "$idx" channel)
+   # shellcheck disable=SC2034
+   rate=$(func_pipeline_parse_value "$idx" rate)
+   # shellcheck disable=SC2034
+   fmts=$(func_pipeline_parse_value "$idx" fmt)
+   # shellcheck disable=SC2034
+   dev=$(func_pipeline_parse_value "$idx" dev)
+   # shellcheck disable=SC2034
+   pcm=$(func_pipeline_parse_value "$idx" pcm)
+   # shellcheck disable=SC2034
+   type=$(func_pipeline_parse_value "$idx" type)
+   # shellcheck disable=SC2034
+   snd=$(func_pipeline_parse_value "$idx" snd)
+   # shellcheck disable=SC2034
+   duration=$(func_pipline_parse_value "$idx" duration)
+
+   if [[ "$SOF_TINY_ALSA" = true ]]; then
+      parse_audio_device
+   fi
+}
+
 aplay_opts()
 {
-    dlogc "aplay $SOF_ALSA_OPTS $SOF_APLAY_OPTS $*"
-    # shellcheck disable=SC2086
-    aplay $SOF_ALSA_OPTS $SOF_APLAY_OPTS "$@"
+    if [[ "$SOF_TINY_ALSA" = true ]]; then
+        dlogc "tinyplay $*"
+        sox -n -r "$rate" -c "$channel" noise.wav synth "$duration" white
+        tinyplay -D "$card_nr" -d "$dev_nr"  -i wav noise.wav
+    else
+        dlogc "aplay $SOF_ALSA_OPTS $SOF_APLAY_OPTS $*"
+        # shellcheck disable=SC2086
+        aplay $SOF_ALSA_OPTS $SOF_APLAY_OPTS "$@"
+    fi
 }
+
 arecord_opts()
 {
-    dlogc "arecord $SOF_ALSA_OPTS $SOF_ARECORD_OPTS $*"
-    # shellcheck disable=SC2086
-    arecord $SOF_ALSA_OPTS $SOF_ARECORD_OPTS "$@"
+
+    if [[ "$SOF_TINY_ALSA" = true ]]; then
+        dlogc "tinycap $*"
+        extract_format_number
+        tinycap "$file" -D "$card_nr" -d "$dev_nr" -c "$channel" -t "$duration" -r "$rate" -b "$format"
+    else
+        dlogc "arecord $SOF_ALSA_OPTS $SOF_ARECORD_OPTS $*"
+        # shellcheck disable=SC2086
+        arecord $SOF_ALSA_OPTS $SOF_ARECORD_OPTS "$@"
+    fi
 }
 
 die()