tools/testing/selftests/ptp/phc.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 ALL_TESTS="
   5         settime
   6         adjtime
   7         adjfreq
   8 "
   9 DEV=$1
  10
  11 ##############################################################################
  12 # Sanity checks
  13
  14 if [[ "$(id -u)" -ne 0 ]]; then
  15         echo "SKIP: need root privileges"
  16         exit 0
  17 fi
  18
  19 if [[ "$DEV" == "" ]]; then
  20         echo "SKIP: PTP device not provided"
  21         exit 0
  22 fi
  23
  24 require_command()
  25 {
  26         local cmd=$1; shift
  27
  28         if [[ ! -x "$(command -v "$cmd")" ]]; then
  29                 echo "SKIP: $cmd not installed"
  30                 exit 1
  31         fi
  32 }
  33
  34 phc_sanity()
  35 {
  36         phc_ctl $DEV get &> /dev/null
  37
  38         if [ $? != 0 ]; then
  39                 echo "SKIP: unknown clock $DEV: No such device"
  40                 exit 1
  41         fi
  42 }
  43
  44 require_command phc_ctl
  45 phc_sanity
  46
  47 ##############################################################################
  48 # Helpers
  49
  50 # Exit status to return at the end. Set in case one of the tests fails.
  51 EXIT_STATUS=0
  52 # Per-test return value. Clear at the beginning of each test.
  53 RET=0
  54
  55 check_err()
  56 {
  57         local err=$1
  58
  59         if [[ $RET -eq 0 && $err -ne 0 ]]; then
  60                 RET=$err
  61         fi
  62 }
  63
  64 log_test()
  65 {
  66         local test_name=$1
  67
  68         if [[ $RET -ne 0 ]]; then
  69                 EXIT_STATUS=1
  70                 printf "TEST: %-60s  [FAIL]\n" "$test_name"
  71                 return 1
  72         fi
  73
  74         printf "TEST: %-60s  [ OK ]\n" "$test_name"
  75         return 0
  76 }
  77
  78 tests_run()
  79 {
  80         local current_test
  81
  82         for current_test in ${TESTS:-$ALL_TESTS}; do
  83                 $current_test
  84         done
  85 }
  86
  87 ##############################################################################
  88 # Tests
  89
  90 settime_do()
  91 {
  92         local res
  93
  94         res=$(phc_ctl $DEV set 0 wait 120.5 get 2> /dev/null \
  95                 | awk '/clock time is/{print $5}' \
  96                 | awk -F. '{print $1}')
  97
  98         (( res == 120 ))
  99 }
 100
 101 adjtime_do()
 102 {
 103         local res
 104
 105         res=$(phc_ctl $DEV set 0 adj 10 get 2> /dev/null \
 106                 | awk '/clock time is/{print $5}' \
 107                 | awk -F. '{print $1}')
 108
 109         (( res == 10 ))
 110 }
 111
 112 adjfreq_do()
 113 {
 114         local res
 115
 116         # Set the clock to be 1% faster
 117         res=$(phc_ctl $DEV freq 10000000 set 0 wait 100.5 get 2> /dev/null \
 118                 | awk '/clock time is/{print $5}' \
 119                 | awk -F. '{print $1}')
 120
 121         (( res == 101 ))
 122 }
 123
 124 ##############################################################################
 125
 126 cleanup()
 127 {
 128         phc_ctl $DEV freq 0.0 &> /dev/null
 129         phc_ctl $DEV set &> /dev/null
 130 }
 131
 132 settime()
 133 {
 134         RET=0
 135
 136         settime_do
 137         check_err $?
 138         log_test "settime"
 139         cleanup
 140 }
 141
 142 adjtime()
 143 {
 144         RET=0
 145
 146         adjtime_do
 147         check_err $?
 148         log_test "adjtime"
 149         cleanup
 150 }
 151
 152 adjfreq()
 153 {
 154         RET=0
 155
 156         adjfreq_do
 157         check_err $?
 158         log_test "adjfreq"
 159         cleanup
 160 }
 161
 162 trap cleanup EXIT
 163
 164 tests_run
 165
 166 exit $EXIT_STATUS