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Annotation of coherent/b/STREAMS/conf/bin/src/idenable, revision 1.1

1.1     ! root        1: # Shell version to provide a more friendly interface to the 'devadm' system
        !             2: # to enable a device.
        !             3: 
        !             4: ##################### FUNCTION DEFINITIONS #######################
        !             5: 
        !             6: # Call with the $0 of the script as a parameter; this commands writes the
        !             7: # name of the directory containing the script to standard output.
        !             8: # Example:
        !             9: #      conf_path $0
        !            10: 
        !            11: conf_path () {
        !            12:        set `which $1 2>/dev/null` X
        !            13:        if [ $# -ne 2 ]; then
        !            14:                echo .          # Assume the current directory.
        !            15:                return 1
        !            16:        fi
        !            17:        set `expr $1 : '\(.*\)/.*'` X
        !            18:        if [ $# -ne 2 ]; then
        !            19:                echo .          # Must be in the current directory.
        !            20:        else
        !            21:                echo $1
        !            22:        fi
        !            23:        return 0
        !            24: }
        !            25: 
        !            26: # Report a usage message to standard output, with the name of the script
        !            27: # passed as the argument to this function.
        !            28: 
        !            29: usage () {
        !            30:        echo $1 ":" Enable device entries
        !            31:        echo "usage:\t[-f] [file ...] [[-e file ...] [-d file ...]] ..."
        !            32:        echo "\tBy default, enable the named devices, reporting conflicts"
        !            33:        echo "\t-d specifies that subsequent device names are to be disabled"
        !            34:        echo "\t-e specifies that subsequent device names are to be enabled"
        !            35:        echo "\t-f specifies that conflicting devices be automatically disabled"
        !            36: }
        !            37: 
        !            38: # Confirm whether a value is set to a yes
        !            39: 
        !            40: isyes () {
        !            41:        [ $1 = y -o $1 = Y ]
        !            42:        return $?
        !            43: }
        !            44: 
        !            45: # Read the 'sdevice' parameters for a device into shell globals
        !            46: 
        !            47: read_sdevice () {
        !            48:        grep ^$1 $CONF_DIR/sdevice 2>/dev/null 1>&2
        !            49:        if [ $? -ne 0 ]; then
        !            50:                echo There is no 'sdevice' entry for $1 1>&2
        !            51:                return 1
        !            52:        fi
        !            53: 
        !            54: #      set `grep ^$1 $CONF_DIR/mdevice 2>/dev/null`
        !            55: #      shift
        !            56: #      MDEV_FUNCS=$1
        !            57: #      MDEV_FLAGS=$2
        !            58: #      MDEV_PREFIX=$3
        !            59: #      MDEV_BLOCK_MAJ=$4
        !            60: #      MDEV_CHAR_MAJ=$5
        !            61: #      MDEV_MIN_MIN=$6
        !            62: #      MDEV_MIN_MAX=$7
        !            63: #      MDEV_DMA_CHAN=$8
        !            64: #      MDEV_CPU_ID=$9
        !            65:        
        !            66:        set `grep ^$1 $CONF_DIR/sdevice 2>/dev/null`
        !            67:        shift
        !            68:        SDEV_CONFIG=$1
        !            69:        SDEV_UNIT=$2
        !            70:        SDEV_INT_PRI=$3
        !            71:        SDEV_INT_TYPE=$4
        !            72:        SDEV_INT_VECT=$5
        !            73:        SDEV_IOA_LO=$6
        !            74:        SDEV_IOA_HI=$7
        !            75:        SDEV_CMA_LO=$8
        !            76:        SDEV_CMA_HI=$9
        !            77: 
        !            78:        OLD_SDEV_CONFIG=$SDEV_CONFIG
        !            79:        shift
        !            80:        OLD_SDEV_INFO="$*"
        !            81:        return 0
        !            82: }
        !            83: 
        !            84: # Update the value of an sdevice entry parameter
        !            85: 
        !            86: set_enable_sdevice () {
        !            87:        if isyes $OLD_SDEV_CONFIG; then
        !            88:                if isyes $2; then
        !            89:                        return 0        # No effect
        !            90:                fi
        !            91:                # Disabling an entry is always legal...
        !            92:        elif isyes $2; then
        !            93:                # Verify that there is nothing conflicting with us
        !            94:                BAD="`$HOME_DIR/devadm -I $CONF_DIR \
        !            95:                         -S"$1 $2 $OLD_SDEV_INFO" -r`"
        !            96:                if [ -n "$BAD" ]; then
        !            97:                        if [ -n "$FORCE_ENABLE" ]; then
        !            98:                                $HOME_DIR/idenable -d $BAD
        !            99:                                BAD="`$HOME_DIR/devadm -I $CONF_DIR \
        !           100:                                        -S"$1 $2 $OLD_SDEV_INFO" -r`"
        !           101:                        fi
        !           102:                        if [ -n "$BAD" ]; then
        !           103:                                echo Enabling $1 will conflict with $BAD
        !           104:                                return 1
        !           105:                        fi
        !           106:                fi
        !           107:        else
        !           108:                return 0                # No effect
        !           109:        fi
        !           110: 
        !           111:        $HOME_DIR/devadm -I $CONF_DIR -S"$1 $2 $OLD_SDEV_INFO" -W
        !           112: }
        !           113: 
        !           114: HOME_DIR=`conf_path $0`
        !           115: CONF_DIR=$HOME_DIR/..
        !           116: 
        !           117: if [ $# -lt 1 ]; then
        !           118:        usage $0 1>&2
        !           119:        exit 100
        !           120: fi
        !           121: 
        !           122: ENABLE=y
        !           123: 
        !           124: while [ $# -gt 0 ]; do
        !           125:        ARG=$1; shift
        !           126:        case $ARG in
        !           127:        -d)     ENABLE=n
        !           128:                ;;
        !           129: 
        !           130:        -e)     ENABLE=y
        !           131:                ;;
        !           132: 
        !           133:        -f)     FORCE_ENABLE=1
        !           134:                ;;
        !           135: 
        !           136:        *)      read_sdevice $ARG || exit 1
        !           137:                set_enable_sdevice $ARG $ENABLE
        !           138:                ;;
        !           139:        esac
        !           140: done
        !           141: 

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