--- /dev/null
+#!/bin/sh
+
+pci_table=/etc/pl_pcitable
+
+loaded_module_list=/tmp/loadedmodules
+
+echo "pl_hwinit: loading applicable modules"
+
+echo > $loaded_module_list
+
+# this will contain lines of device_id:vendor_id (no 0x)
+system_devices=$(lspci -n | cut -d " " -f4)
+
+for device in $system_devices; do
+
+ # now vendor_id and device_id are broken apart
+ vendor_id=$(echo $device | cut -d ":" -f1)
+ device_id=$(echo $device | cut -d ":" -f2)
+
+ # either exactly match vendor:device, or a vendor:ffff (let the module
+ # figure out if it can be used for this device), or ffff:device
+ # (not sure if this is legal, but shows up in the pci map)
+ mods=$(grep -i "\($vendor_id:ffff\|$vendor_id:$device_id\|ffff:$device_id\)" \
+ $pci_table | cut -d " " -f1)
+
+ for module in $mods; do
+ if [ -n "$module" ]; then
+ echo "pl_hwinit: found and loading module $module"
+ /sbin/modprobe $module
+ echo $module >> $loaded_module_list
+ fi
+ done
+done
+
+# just in case, look for any modules that are ffff:ffff and load them
+mods=$(grep -i "ffff:ffff" $pci_table | cut -d " " -f1)
+for module in $mods; do
+ if [ -n "$module" ]; then
+ echo "pl_hwinit: found and loading wild module $module"
+ /sbin/modprobe $module
+ fi
+done
+
+# sd_mod won't get loaded automatically
+echo "pl_hwinit: loading sd_mod"
+/sbin/modprobe sd_mod
+
+# load usb_storage to support node conf files on flash disks
+echo "pl_hwinit: loading usb_storage"
+/sbin/modprobe usb_storage
+
+echo "pl_hwinit: loading floppy device driver"
+/sbin/modprobe floppy
+
+# always wait a bit between loading the usb drivers, and checking /sys/
+# for usb devices (this isn't necessarily for waiting for mass storage files,
+# that is done below)
+echo "pl_hwinit: waiting for usb system to initialize."
+/bin/sleep 10s
+
+# sometimes, flash devices take a while to initialize. in fact, the kernel
+# intentionally waits 5 seconds for a device to 'settle'. some take even longer
+# to show up. if there are any mass storage devices on the system, try to
+# delay until they come online, up to a max delay of 30s.
+
+# the way this will be done is to look for files in /sys/devices that are named
+# 'bInterfaceClass', these will be a list of the usb devices on the system, and
+# their primary usb device interface class ids. The base directory these files
+# exist in will be the full path to the /sys/device entry for that device.
+# for each mass storage devices (they have an interface class value of 08),
+# we wait for a new symbolic link named 'driver' to exist in that directory,
+# indicating the kernel loaded a driver for that device.
+
+# usb interface class id for mass storage
+INTERFACE_CLASS_MASS_STORAGE="08"
+
+# how long to wait in seconds before continuing on if devices
+# aren't available
+MAX_USB_WAIT_TIME=30
+
+# low long in seconds to wait between checks
+PER_CHECK_USB_WAIT_TIME=5
+
+
+# find out if the device identified by the /sys dir has a module
+# loaded for it. check for a symlink in the dir named driver.
+function does_device_dir_have_driver()
+{
+ if [[ -h "$1/driver" ]]; then
+ return 1
+ else
+ return 0
+ fi
+}
+
+wait_dev_list=""
+for interface_class_file in `find /sys/devices -name 'bInterfaceClass'`; do
+ interface_class=`cat $interface_class_file`
+ if [[ "$interface_class" == $INTERFACE_CLASS_MASS_STORAGE ]]; then
+ wait_dev_list="$wait_dev_list "`dirname $interface_class_file`
+ fi
+done
+
+if [[ -n "$wait_dev_list" ]]; then
+ echo "pl_hwinit: found USB mass storage device(s). Attempting to wait"
+ echo "pl_hwinit: up to $MAX_USB_WAIT_TIME seconds for them to come online."
+
+ total_wait_time=0
+ success=0
+ while [[ $total_wait_time < $MAX_USB_WAIT_TIME ]]; do
+
+ total_wait_time=$(($total_wait_time+$PER_CHECK_USB_WAIT_TIME))
+
+ echo "pl_hwinit: waiting $PER_CHECK_USB_WAIT_TIME seconds."
+ /bin/sleep $PER_CHECK_USB_WAIT_TIME
+
+ all_devices_online=1
+ for device_dir in $wait_dev_list; do
+ does_device_dir_have_driver $device_dir
+ if [[ "$?" -eq 0 ]]; then
+ all_devices_online=0
+ fi
+ done
+
+ if [[ $all_devices_online -eq 1 ]]; then
+ success=1
+ echo "pl_hwinit: looks like the devices are now online."
+ break;
+ else
+ echo "pl_hwinit: not all devices online yet, waiting..."
+ fi
+ done
+
+ if [[ $success -eq 1 ]]; then
+ echo "pl_hwinit: Succesfully waited for USB mass storage devices"
+ echo "pl_hwinit: to come online."
+ else
+ echo "pl_hwinit: One or more USB mass storage devices did not"
+ echo "pl_hwinit: initialize in time. Continuing anyway."
+ fi
+fi
+
git://git.onelab.eu / bootcd.git / blobdiff