1 files changed, 142 insertions, 0 deletions
diff --git a/testing/hdparm/hdparm.initd b/testing/hdparm/hdparm.initd
new file mode 100644
index 0000000000..89aa4f82b7
--- /dev/null
+++ b/testing/hdparm/hdparm.initd
@@ -0,0 +1,142 @@
+#!/sbin/runscript
+# METHOD
+# ------
+# if /dev/ide exists, find all block devices beneath it named disc, cd, or
+# generic.
+#
+# for the disc and cd ones, if there is a a matching /dev/hdX symlink and
+# hdX_args is set in the config file, use hdX_args.  otherwise, if there is a
+# matching /dev/discs/discX or /dev/cdroms/cdromX symlink, and discX_args or
+# cdromX_args is set in the config file, use discX_args / cdromX_args.  finally,
+# if all_args is set in the config file, use that.
+#
+# for the generic ones, sort them and look for genericX_args in the config file
+# or use all_args.
+#
+# if /dev/ide does not exist, check the /dev/hdX entries, and see which ones
+# correspond to real devices by opening them for reading.  then check hdX_args
+# and all_args in the config file.
+#
+# for each device considered, if no args are found in the config file, do not
+# run hdparm.
+
+depend() {
+	before bootmisc
+}
+
+do_hdparm() {
+	local e=
+	eval e=\$${extra_args}
+	[ -z "${args}${all_args}${e}" ] && return 0
+	
+	if [ -n "${args:=${all_args} ${e}}" ] ; then
+		local orgdevice=$(readlink -f "${device}")
+		if [ -b "${orgdevice}" ] ; then
+			ebegin "Running hdparm on ${device}"
+			hdparm ${args} "${device}" > /dev/null
+			eend $?
+		fi
+	fi
+}
+
+scan_devfs() {
+	local extra_args="pata_all_args" device= alias= args=
+
+	# devfs compatible systems
+	for device in $(find /dev/ide -name disc) ; do
+		args=''
+
+		for alias in /dev/hd? ; do
+			if [ "${alias}" -ef "${device}" ] ; then
+				device=${alias}
+				eval args=\$"$(basename "${alias}")"_args
+				break
+			fi
+		done
+
+		if [ -z "$args" ] ; then
+			for alias in /dev/discs/* ; do
+				if [ "${alias}"/disc -ef "${device}" ]; then
+					device="${alias}/disc"
+					eval args=\$"$(basename "${alias}")"_args
+					break
+				fi
+			done
+		fi
+
+		do_hdparm
+	done
+
+	for device in $(find /dev/ide -name cd) ; do
+		args=''
+
+		for alias in /dev/hd? ; do
+			if [ "${alias}" -ef "${device}" ] ; then
+				device=${alias}
+				eval args=\$"$(basename "${alias}")"_args
+				break
+			fi
+		done
+
+		if [ -z "$args" ] ; then
+			for alias in /dev/cdroms/* ; do
+				if [ "${alias}" -ef "${device}" ] ; then
+					device=${alias}
+					eval args=\$"$(basename "${alias}")"_args
+					break
+				fi
+			done
+		fi
+
+		do_hdparm
+	done
+
+	local count=0
+	# of course, the sort approach would fail here if any of the
+	# host/bus/target/lun numbers reached 2 digits..
+	for device in $(find /dev/ide -name generic | sort) ; do
+		eval args=\$generic${count}_args
+		do_hdparm
+		count=$((${count} + 1))
+	done
+}
+
+scan_nondevfs() {
+	# non-devfs compatible system
+	for device in /dev/hd* /dev/sd* ; do
+		[ -e "${device}" ] || continue
+		case "${device}" in
+			*[0-9]) continue ;;
+			/dev/hd*)  extra_args="pata_all_args" ;;
+			/dev/sd*)  extra_args="sata_all_args" ;;
+			*)         extra_args="" ;;
+		esac
+
+		# check that the block device really exists by
+		# opening it for reading
+		local errmsg= status= nomed=1
+		errmsg=$(export LC_ALL=C ; : 2>&1 <"${device}")
+		status=$?
+		case ${errmsg} in
+		    *": No medium found") nomed=0;;
+		esac
+		if [ -b "${device}" ] && [ "${status}" = "0" -o "${nomed}" = "0" ] ; then
+			local conf_var="${device##*/}_args"
+			eval args=\$${conf_var}
+			do_hdparm
+		fi
+	done
+}
+
+start() {
+	if get_bootparam "nohdparm" ; then
+		ewarn "Skipping hdparm init as requested in kernel cmdline"
+		return 0
+	fi
+
+	if [ -e /dev/.devfsd -a -d /dev/ide ] ; then
+		scan_devfs
+	else
+		scan_nondevfs
+	fi
+}