[zaptel-commits] tzafrir: branch tzafrir/zaphelper r1627 - /team/tzafrir/zaphelper/zaptel-helper

zaptel-commits at lists.digium.com zaptel-commits at lists.digium.com
Tue Nov 21 11:43:32 MST 2006


Author: tzafrir
Date: Tue Nov 21 12:43:32 2006
New Revision: 1627

URL: http://svn.digium.com/view/zaptel?view=rev&rev=1627
Log:
Initial version of the zaptel-helper script.

Added:
    team/tzafrir/zaphelper/zaptel-helper   (with props)

Added: team/tzafrir/zaphelper/zaptel-helper
URL: http://svn.digium.com/view/zaptel/team/tzafrir/zaphelper/zaptel-helper?view=auto&rev=1627
==============================================================================
--- team/tzafrir/zaphelper/zaptel-helper (added)
+++ team/tzafrir/zaphelper/zaptel-helper Tue Nov 21 12:43:32 2006
@@ -1,0 +1,288 @@
+#!/bin/sh
+
+# zaptel-helper: helper script/functions for Zaptel .
+
+# Should be possible to run with -e set. This is also recommended.
+
+# Constants:
+# maximal time (in seconds) to wait for /dev/zap/dtl to appear after 
+# loading zaptel
+DEVZAP_TIMEOUT=${DEVZAP_TIMEOUT:-20}
+
+# Zaptel modules we'll try
+ALL_MODULES="${ALL_MODULES:-zaphfc qozap ztgsm wctdm wctdm24xxp wcfxo wcfxs pciradio tor2 torisa wct1xxp wct4xxp wcte11xp wanpipe wcusb xpp_usb}"
+
+# Where do we write the list of modules we detected (if at all):
+MODLIST_FILE_DEBIAN=${MODLIST_FILE_DEBIAN:-/etc/modules}
+MODLIST_FILE_REDHAT=${MODLIST_FILE_REDHAT:-/etc/sysconfig/zaptel}
+
+# The location of of the fxotune binary
+FXOTUNE=${FXOTUNE:/usr/sbin/fxotune}
+
+ZTCFG="${ZTCFG:-/sbin/ztcfg}"
+
+# TODO: this may not be appropriate for a general-purpose script.
+# However you should not use a direct 'echo' to write output to the user
+#, to make it simple to override.
+say() {
+	echo "$@"
+}
+
+error() {
+	echo >&2 "$@"
+}
+
+die() {
+	error "$@"
+	exit 1
+}
+
+
+#############################################################################
+#####
+##### Init helper functions
+#####
+
+
+# Wait for udev to generate /dev/zap/ctl, if needed:
+wait_for_zapctl() {
+	# if device file already exists, or if zaptel has failed to load: 
+	# no point waiting.
+	if [ -c /dev/zap/ctl ] || ! grep -q zaptel /proc/modules ; then
+	 	return
+  	fi
+  
+  	say "Waiting for /dev/zap/ctl to be generated"
+	devzap_found=0
+	for i in `seq $DEVZAP_TIMEOUT`; do
+		sleep 1
+		if [ -c /dev/zap/ctl ]; then
+		  devzap_found=1
+			break
+		fi
+	done
+	if [ "$devzap_found" != 1 ]; then
+		say "Still no /dev/zap/ctl after $devzap_timeout seconds."
+		error "No /dev/zap/ctl: cannot run ztcfg. Aborting."
+	fi
+}
+
+# recursively unload a module and its dependencies, if possible.
+# where's modprobe -r when you need it?
+# inputs: module to unload.
+# returns: the result from 
+unload_module() {
+	module="$1"
+	line=`lsmod 2>/dev/null | grep "^$1 "`
+	if [ "$line" = '' ]; then return; fi # module was not loaded
+
+	set -- $line
+	# $1: the original module, $2: size, $3: refcount, $4: deps list
+	mods=`echo $4 | tr , ' '`
+	for mod in $mods; do
+		# run in a subshell, so it won't step over our vars:
+		(unload_module $mod) 
+		# TODO: the following is probably the error handling we want:
+		# if [ $? != 0 ]; then return 1; fi
+	done
+	rmmod $module
+}
+
+# sleep a while until the xpp modules fully register
+wait_for_xpp() {
+	if [ -d /proc/xpp ]
+	then
+		# wait for the XPDs to register:
+		# TODO: improve error reporting and produce a messagee here
+		cat /proc/xpp/XBUS-*/waitfor_xpds 2>/dev/null >/dev/null  || true
+	fi
+}
+
+zap_reg_xpp() {
+	if [ ! -d /proc/xpp ]; then return; fi
+	
+	# Get a list of connected Astribank devices, sorted by the name of 
+	# the USB connector. That order is rather arbitrary, but will not 
+	# change without changes to the cabling.
+	xbusses=`sort -k 2 /proc/xpp/xbuses | awk -F: '/STATUS=connected/ {print $1}'`
+
+	# get a list of XPDs that were not yet registered as zaptel spans.
+	# this will be the case if you set the parameter zap_autoreg=0 to
+	# the module xpp
+	# Append /dev/null to provide a valid file name in case of an empty pattern.
+	xbusses_pattern=`echo $xbusses| sed -e 's|XBUS-[0-9]*|/proc/xpp/&/XPD-*/zt_registration|g'`' /dev/null'
+	xpds_to_register=`grep -l 0 $xbusses_pattern 2>/dev/null` || true
+	for file in $xpds_to_register; do
+		echo 1 >$file
+	done
+}
+
+# Set the sync source of the Astribank to the right value
+fix_asterisbank_sync() {
+	# do nothing if module not present
+	if [ ! -d /proc/xpp ]; then return; fi
+	
+	#if ! grep -q '^HOST' /proc/xpp/sync 2>/dev/null; then return; fi
+
+	case "$XPP_SYNC" in
+	n*|N*) return;;
+	host|HOST) sync_value="HOST";;
+	[0-9]*)sync_value="$XPP_SYNC";;
+	*) 
+		# find the number of the first bus, and sync from it:
+		fxo_pat=`awk -F: '/STATUS=connected/{print $1}' /proc/xpp/xbuses | sed -e 's|.*|/proc/xpp/&/*/fxo_info|'`
+		# find the first FXO unit, and set it as the sync master
+		bus=`ls -1 $fxo_pat 2> /dev/null | head -n1 | cut -d- -f2 | cut -d/ -f1` 
+
+		# do nothing if there is no bus:
+		case "$bus" in [0-9]*):;; *) return;; esac
+		sync_value="$bus 0"
+		;;
+	esac
+	# the built-in echo of bash fails to print a proper error on failure
+	if ! /bin/echo "$sync_value" >/proc/xpp/sync
+	then 
+		error "Updating XPP sync source failed (used XPP_SYNC='$XPP_SYNC')"
+	fi
+}
+
+# The current Debian start function.
+# The function is not responsible for loading the zaptel modules:
+# they will be loaded beforehand. 
+debian_start() {
+	wait_for_xpp
+	zap_reg_xpp
+	fix_asterisbank_sync
+	wait_for_zapctl
+	
+	# If there is no zaptel timing source, load
+	# ztdummy. Other modules should have been loaded by
+	# now.
+	if ! head -c 0 /dev/zap/pseudo 2>/dev/null
+	then modprobe ztdummy || true # will fail if there is no module package
+	fi
+        if [ -r /etc/fxotune.conf ] && [ -x $FXOTUNE ]; then
+          $FXOTUNE -s
+        fi
+
+	# configure existing modules:
+	$ZTCFG
+}
+
+
+# recursively unload a module and its dependencies, if possible.
+# where's modprobe -r when you need it?
+# inputs: module to unload.
+unload_module() {
+	set +e
+	module="$1"
+	line=`lsmod 2>/dev/null | grep "^$module "`
+	if [ "$line" = '' ]; then return; fi # module was not loaded
+
+	set -- $line
+	# $1: the original module, $2: size, $3: refcount, $4: deps list
+	mods=`echo $4 | tr , ' '`
+	# xpd_fxs actually sort of depends on xpp:
+	case "$module" in xpd_*) mods="xpp_usb $mods";; esac
+	for mod in $mods; do
+		# run in a subshell, so it won't step over our vars:
+		(unload_module $mod) 
+	done
+	rmmod $module || true
+	set -e
+}
+
+# sleep a while until the xpp modules fully register
+wait_for_xpp() {
+	if [ -d /proc/xpp ] && \
+	   [ "`cat /sys/module/xpp/parameters/zap_autoreg`" = 'Y' ]
+	then
+		# wait for the XPDs to register:
+		# TODO: improve error reporting and produce a messagee here
+		cat /proc/xpp/XBUS-*/waitfor_xpds 2>/dev/null >/dev/null  || true
+	fi
+}
+
+#############################################################################
+#####
+##### Hardware detection functions
+#####
+
+load_modules() {
+	say "Test Loading modules:"
+	for i in $ALL_MODULES
+	do
+		lines_before=`count_proc_zap_lines`
+		args="${i}_args"
+		eval "args=\$$args"
+		# a module is worth listing if it:
+		# a. loaded successfully, and
+		# b. added channels lines under /proc/zaptel/*
+		if /sbin/modprobe $i $args 2> /dev/null 
+		then
+		  check=0
+		  case "$i" in
+			xpp_usb) check=`grep 'STATUS=connected' 2>/dev/null /proc/xpp/xbuses | wc -l` ;;
+			# FIXME: zttranscode will always load, and will never 
+			# add a span. Maybe try to read from /dev/zap/transcode .
+			zttranscode) : ;; 
+			*) if [ $lines_before -lt `count_proc_zap_lines` ]; then check=1; fi ;;
+			esac
+			if [ "$check" != 0 ]
+			then
+			  probed_modules="$probed_modules $i"
+			  say "	ok	$i	$args"
+		  else
+			  say "	- 	$i	$args"
+				rmmod $i
+		  fi
+		else
+			say "	- 	$i	$args"
+		fi
+	done
+}
+
+update_module_list_debian() {
+	say "Updating Debian modules list $MODLIST_FILE_DEBIAN."
+	del_args=`for i in $ALL_MODULES ztdummy
+	do
+		echo "$i" | sed s:.\*:-e\ '/^&/d':
+	done`
+	add_args=`for i in $*
+	do
+		echo "$i" | sed s:.\*:-e\ '\$a&':
+	done`
+	
+	sed -i.bak $del_args "$MODLIST_FILE_DEBIAN"
+	for i in $*
+	do
+		echo "$i"
+	done >> "$MODLIST_FILE_DEBIAN"
+}
+
+update_module_list_redhat() {
+	say "Updating modules list in zaptel init config $MODLIST_FILE_REDHAT."
+	sed -i.bak -e '/^MODULES=/d' "$MODLIST_FILE_REDHAT"
+	echo "MODULES=\"$*\"" >> "$MODLIST_FILE_REDHAT"
+}
+
+update_module_list() {
+	if   [ -f "$MODLIST_FILE_DEBIAN" ]; then
+		update_module_list_debian "$@"
+	elif [ -f "$MODLIST_FILE_REDHAT" ]; then
+		update_module_list_redhat "$@"
+	else
+		die "Can't find a modules list to update. Tried: $MODLIST_FILE_DEBIAN, $MODLIST_FILE_REDHAT. Aborting"
+	fi
+}
+
+
+
+
+
+
+# unless we wanted to use this as a set of functions, run 
+# the given function with its parameters:
+if [ "$ZAPHELPER_ONLY_INCLUDE" != '' ]; then
+  "$@"
+fi

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