test-case: add new test case for soc power measurement

Intel SoCWatch is proprietary tool to measure with energy analsis for
Intel platofrm. With socwatch, plan to check package C-State and
average package power number etc.

Intel SoCWatch reference link
https://www.intel.com/content/www/us/en/docs/socwatch/get-started-guide/2020/overview.html

Signed-off-by: Fred Oh <fred.oh@linux.intel.com>

test-case/test-socwatch.sh

@@ -0,0 +1,123 @@
+#!/bin/bash
+
+set -e
+
+##
+## Case Name: check-soc-power-status
+## Preconditions:
+##    Intel SoCwatch tool must be installed on the device
+## Description:
+##    Run the socwatch command to check SoC power status
+## Test steps:
+##    1. load socwatch kernel module
+##    2. run socwatch command with desired parameters
+##    3. check return value from socwatch
+##    4. collect logs
+##    5. check dmesg errors
+##    6. unload socwatch kernel module
+## Expect result:
+##    consistent power status across tests
+##    check kernel log and find no errors
+##
+
+TOPDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)
+# shellcheck source=case-lib/lib.sh
+source "${TOPDIR}"/case-lib/lib.sh
+
+OPT_NAME['l']='loop'     OPT_DESC['l']='loop count'
+OPT_HAS_ARG['l']=1       OPT_VAL['l']=1
+
+OPT_NAME['d']='duration' OPT_DESC['d']='duration time for socwatch to collect the data'
+OPT_HAS_ARG['d']=1       OPT_VAL['d']=20
+
+OPT_NAME['w']='wait'     OPT_DESC['w']='idle time before starting socwatch to collect the data'
+OPT_HAS_ARG['w']=1       OPT_VAL['w']=5
+
+# TODO: socwatch test after unloading audio module might be useful
+OPT_NAME['u']='unload-audio'  OPT_DESC['u']='unload audio modules for the test'
+OPT_HAS_ARG['u']=0            OPT_VAL['u']=0
+
+: "${SOCWATCH_PATH:=$HOME/socwatch}"
+
+# reference cmd: sudo ./socwatch -t 20 -s 5 -f cpu-cstate -f pkg-pwr -o fredtest5
+#SOCWATCH_CMD="./socwatch"
+SOCWATCH_FEATURE_PARAMS=( -f cpu-cstate -f pkg-pwr )
+
+func_opt_parse_option "$@"
+func_lib_check_sudo
+duration=${OPT_VAL['d']}
+wait_time=${OPT_VAL['w']}
+loop_count=${OPT_VAL['l']}
+
+check_socwatch_module_loaded()
+{
+    lsmod | grep -q socwatch || die "socwatch is not loaded"
+}
+
+socwatch_test_once()
+{
+    local i="$1"
+    dlogi "===== Loop($i/$loop_count) ====="
+
+    # set up checkpoint for each iteration
+    setup_kernel_check_point
+
+    # load socwatch module, if the module is loaded, go ahead with the testing (-q)
+    sudo "$SOCWATCH_PATH"/drivers/insmod-socwatch -q
+    check_socwatch_module_loaded || die "socwatch module not loaded"
+
+    ( set -x
+      sudo "$SOCWATCH_PATH"/socwatch -t "$duration" -s "$wait_time" "${SOCWATCH_FEATURE_PARAMS[@]}" -o "$SOCWATCH_PATH/sofsocwatch-$i" ) ||
+    die "socwatch returned $?"
+
+    # filter output and copy to log directory
+    grep "Package C-State Summary: Residency" -B 8 -A 11 "$SOCWATCH_PATH/sofsocwatch-$i.csv" | tee "$SOCWATCH_PATH/socwatch-$i.txt"
+    grep "Package Power Summary: Average Rate" -B 6 -A 4 "$SOCWATCH_PATH/sofsocwatch-$i.csv" | tee -a "$SOCWATCH_PATH/socwatch-$i.txt"
+    # zip original csv report
+    gzip "$SOCWATCH_PATH/sofsocwatch-$i.csv"
+    mv "$SOCWATCH_PATH/socwatch-$i.txt" "$SOCWATCH_PATH/sofsocwatch-$i.csv.gz" "$LOG_ROOT"/
+
+    dlogi "Check for the kernel log status"
+    # check kernel log for each iteration to catch issues
+    sof-kernel-log-check.sh "$KERNEL_CHECKPOINT" || die "Caught error in kernel log"
+
+    # unload socwatch module
+    sudo "$SOCWATCH_PATH"/drivers/rmmod-socwatch
+}
+
+main()
+{
+    local keep_modules=true already_unloaded=false
+
+    [ -d "$SOCWATCH_PATH" ] ||
+        die "SOCWATCH not found in SOCWATCH_PATH=$SOCWATCH_PATH"
+
+    if [ "${OPT_VAL['u']}" = 1 ]; then
+        keep_modules=false
+    fi
+
+    lsmod | grep -q snd_sof || {
+        already_unloaded=true
+        $keep_modules ||
+            dlogw 'modules already unloaded, ignoring option -u!'
+    }
+
+    $already_unloaded || $keep_modules || "$TOPDIR"/tools/kmod/sof_remove.sh ||
+        die "Failed to unload audio drivers"
+
+    # socwatch test from here
+    for i in $(seq 1 "$loop_count")
+    do
+        socwatch_test_once "$i"
+    done
+
+    $already_unloaded || $keep_modules || "$TOPDIR"/tools/kmod/sof_insert.sh ||
+        die "Failed to reload audio drivers"
+    sof-kernel-log-check.sh "$KERNEL_CHECKPOINT" ||
+        die "Found kernel error after reloading audio drivers"
+
+    # DON"T delete socwatch directory after test, delete before new test
+    # rm -rf $SOCWATCH_PATH
+}
+
+main "$@"