metrics/hardware_class

#!/bin/sh

# Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

# This script prints the hardware class (e.g., the hardware
# qualification ID) of this device, or "unknown" if it can't determine
# the hardware class.

# TODO(petkov): The hardware qualification ID is not available on
# systems yet, so the script uses alternative ways to identify
# different system classes (e.g., the WiFi adapter PCI vendor and
# device IDs). Switch the script to use real hardware qualification ID
# when that becomes available.

# Appends a new component ID to the hardware class. Separates IDs with
# dashes.
append_class() {
  [ -n "$HARDWARE_CLASS" ] && HARDWARE_CLASS="${HARDWARE_CLASS}-"
  HARDWARE_CLASS="${HARDWARE_CLASS}$1"
}

# Adds the CPU family, model and stepping info, if available, to the
# class.
cpu() {
  [ -r /proc/cpuinfo ] || return
  FAMILY=`grep -m1 '^cpu family' /proc/cpuinfo \
            | sed 's/cpu family\s\+:\s\+\([0-9]\+\)$/\1/'`
  MODEL=`grep -m1 '^model' /proc/cpuinfo \
           | sed 's/model\s\+:\s\+\([0-9]\+\)$/\1/'`
  STEPPING=`grep -m1 '^stepping' /proc/cpuinfo \
              | sed 's/stepping\s\+:\s\+\([0-9]\+\)$/\1/'`
  if [ -n "$FAMILY" ] && [ -n "$MODEL" ] && [ -n "$STEPPING" ]; then
    append_class "cpu/$FAMILY:$MODEL:$STEPPING"
  fi
}

# Adds the wlan0 PCI vendor and device ID, if available, to the class.
wlan() {
  WLAN_DEV=/sys/class/net/wlan0/device
  if [ -r $WLAN_DEV/vendor ] && [ -r $WLAN_DEV/device ]; then
    WLAN_ID=`paste -d ':' $WLAN_DEV/vendor $WLAN_DEV/device | sed s/0x//g`
    append_class "wlan0/$WLAN_ID"
  fi
}


HARDWARE_CLASS=

cpu
wlan

[ -z "$HARDWARE_CLASS" ] && HARDWARE_CLASS=unknown

echo $HARDWARE_CLASS