Add support for IDE controllers with identity crisis

[yaboot.git] / ybin / ofpath

diff --git a/ybin/ofpath b/ybin/ofpath
index 0f944e2ef7f7ee52d179462dce69f9d3a80bbbb6..287cdb1b5374eea65ec28814d14514469dbfa312 100755 (executable)
--- a/ybin/ofpath
+++ b/ybin/ofpath
@@ -27,7 +27,7 @@
 
 PATH="/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin"
 PRG="${0##*/}"
-VERSION=1.0.3-rc1
+VERSION=1.0.3-rc2
 DEBUG=0
 export LC_COLLATE=C
 
@@ -339,16 +339,23 @@ ide_ofpath()
            return 1
        fi
 
+       if [ ! -f "/proc/ide/${IDEBUS}/channel" ] ; then
+           echo 1>&2 "$PRG: KERNEL BUG: /proc/ide/${IDEBUS}/channel does not exist"
+           return 1
+       fi
+
        case "$(cat /proc/device-tree${DEVSPEC}/device_type 2> /dev/null)" in
            ata)
-               local CHANNEL=""
+               local MASTER="/disk@0"
+               local SLAVE="/disk@1"
                ;;
            pci-ata)
-               if [ ! -f "/proc/ide/${IDEBUS}/channel" ] ; then
-                   echo 1>&2 "$PRG: KERNEL BUG: /proc/ide/${IDEBUS}/channel does not exist"
-                   return 1
-               fi
-               local CHANNEL="/@$(cat /proc/ide/${IDEBUS}/channel)"
+               local MASTER="/@$(cat /proc/ide/${IDEBUS}/channel)/disk@0"
+               local SLAVE="/@$(cat /proc/ide/${IDEBUS}/channel)/disk@1"
+               ;;
+           scsi) ## some lame controllers pretend they are scsi, hopefully all kludges are created equal.
+               local MASTER="/$(($(cat /proc/ide/${IDEBUS}/channel) * 2 + 0)),0"
+               local SLAVE="/$(($(cat /proc/ide/${IDEBUS}/channel) * 2 + 1)),0"
                ;;
            *)
                echo 2>&1 "$PRG: Unsupported IDE device type: \"$(cat /proc/device-tree${DEVSPEC}/device_type 2> /dev/null)\""
@@ -358,11 +365,11 @@ ide_ofpath()
 
        case "$DEVNODE" in
            hda|hdc|hde|hdg|hdi)
-               echo "${DEVSPEC}${CHANNEL}/disk@0:$PARTITION"
+               echo "${DEVSPEC}${MASTER}:$PARTITION"
                return 0
                ;;
            hdb|hdd|hdf|hdh|hdj)
-               echo "${DEVSPEC}${CHANNEL}/disk@1:$PARTITION"
+               echo "${DEVSPEC}${SLAVE}:$PARTITION"
                return 0
                ;;
            *)