#----------------------------------------------------------------------------
# /etc/boot.d/rc010.hddrv
#
# Creation:     2004-06-26 hs
# Last Update:  $Id$
#----------------------------------------------------------------------------

begin_script BOOT "loading disk drivers ..."    

# load hd-modules
do_modprobe ext3
do_modprobe_if_exists kernel/fs/ext2 ext2

# load all drivers
IDE_USED='no'
SATA_USED='no'
ATA_USED='no'
USB_USED='no'
PCMCIA_USED='no'
PCMCIA_MODE='unknown'
RZ1000_USED='no'

[ "$HDDRV_N" -eq 0 ] || for idx in `seq 1 $HDDRV_N`; do
    eval drv='$HDDRV_'$idx
    eval opt='$HDDRV_'$idx'_OPTION'
    
    case "$drv" in
        scsi-cd)    # load scsi-cdrom modules
            do_modprobe sr_mod
	    ;;
        scsi-hd)    # load scsi-disk modules
            do_modprobe sd_mod
            ;;
        sata-cd|sata-hd)
	    if [ "$SATA_USED" = "no" ]
	    then
	      SATA_USED='yes'
	    fi
            case "$drv" in
                *-cd) do_modprobe sr_mod ;;
                *-hd) do_modprobe sd_mod ;;
            esac
	    ;;
        ata-cd|ata-hd)
	    if [ "$ATA_USED" = "no" ]
	    then
	      ATA_USED='yes'
	    fi
            case "$drv" in
                *-cd) do_modprobe sr_mod ;;
                *-hd) do_modprobe sd_mod ;;
            esac
	    ;;
        ide-*)
	    IDE_USED='yes'
            case "$drv" in
                *-cd)     do_modprobe ide-cd ;;
                *-hd)     do_modprobe ide-disk ;;
                *-floppy) do_modprobe ide-floppy ;;
            esac
            ;;
	pcmcia-*)
	    if [ "$PCMCIA_USED" = "no" ]
	    then
	      PCMCIA_USED='yes'
	      if [ -f /lib/modules/${kernel_version}/kernel/drivers/ata/pata_pcmcia.ko ]
	      then
	        do_modprobe pata_pcmcia
		PCMCIA_MODE='scsi'
	      else
	        do_modprobe ide-cs
		PCMCIA_MODE='ide'
	      fi
	    fi
	    if [ "$PCMCIA_MODE" = "scsi" ]
	    then
              case "$drv" in
                  *-cd) do_modprobe sr_mod ;;
                  *-hd) do_modprobe sd_mod ;;
              esac
	    else
  	      if [ "$PCMCIA_MODE" = "ide" ]
	      then
                case "$drv" in
                  *-cd) do_modprobe ide-cd ;;
                  *-hd) do_modprobe ide-disk ;;
                  *-floppy) do_modprobe ide-floppy ;;
                esac
	      fi
	    fi
	    ;;
        usb-*) 
            if [ "$USB_USED" = "no" ]
            then
              USB_USED='yes'
	      if [ -f /lib/modules/${kernel_version}/kernel/drivers/usb/storage/libusual.ko ]
	      then
                  do_modprobe libusual
	      else
                  do_modprobe scsi_mod
                  do_modprobe usb-libusual
		  if [ -n "$opt" ]
		  then
		    sleep 2
	          fi
	      fi
            fi
	    for option in $opt
	    do
	        do_modprobe_if_exists kernel/drivers/usb/storage $option
	    done
            case "$drv" in
                *-cd) do_modprobe sr_mod ;;
                *-hd) do_modprobe sd_mod ;;
            esac
            ;;
        diskonchip) # M-sys DiskOnChip
            do_modprobe nand
            do_modprobe diskonchip
            do_modprobe nftl
            ;;
        virtio) # KVM Virtio
            do_modprobe virtio_pci
            do_modprobe virtio_blk
            do_modprobe virtio_balloon
            ;;
        xen-hd) # Xen Block Front
            do_modprobe xen_blkfront
            ;;
        *)  # other Controllers
            do_modprobe $drv $opt
	    case "$drv" in
		rz1000) RZ1000_USED='yes' ;;
	    esac
            ;;
    esac     
    case "$drv" in
        *-cd) do_modprobe isofs ;;
    esac    
done
    
if [ "$SATA_USED" = "yes" ]
then
    do_modprobe ahci
fi

if [ "$ATA_USED" = "yes" ]
then
    do_modprobe ata_generic all_generic_ide=1
    # Only load the ISA-Legacy Drivers if both primary and secondary IDE are not occupied yet
    if [ -z "`grep ^01f0-01f7 /proc/ioports`" -a -z "`grep ^01f0-01f7 /proc/ioports`" ]
    then
      do_modprobe pata_legacy
    fi
fi

if [ "$IDE_USED" = "yes" ]; then
    if grep -q 1042100 /proc/bus/pci/devices; then
	if [ "$RZ1000_USED" = "no" ]; then
            cat <<EOF | log_warn
rz1000 controller found but no driver loaded
Please add HD_DRV_1='rz1000' to your HD Driver 
configuration or data loss may occur!
EOF
            do_modprobe_if_exist kernel/drivers/ide rz1000 # kernel 2.6.30
            do_modprobe_if_exist kernel/drivers/ide/pci rz1000 #kernel 2.6.16
	fi
    fi
    # Only load ide-generic if no other driver claims 0x1f0 (primary-ide)
    if [ -z "`sed -n '/^01f0-01f7 : ide/p' /proc/ioports`" -a -z "`sed -n '/^  01f0-01f7 : /p' /proc/ioports`" ]
    then
      probe_mask=''
      case $kernel_major in
          2.6) 
	    if [ 0$kernel_minor -gt 27 ]
	    then
	      do_modprobe ide-pci-generic all_generic_ide=1
	      if [ -z "`sed -n '/^01f0-01f7 : ide/p' /proc/ioports`" -a -z "`sed -n '/^  01f0-01f7 : /p' /proc/ioports`" ]
	      then
	        do_modprobe ide-generic probe_mask=0x03
	      fi
	    else
	      do_modprobe ide-generic
	    fi
	    ;;
          *)   do_modprobe ide-detect  ;;
      esac
    fi
fi

if [ "$USB_USED" = "yes" -a -f /proc/bus/usb/devices ]; then
    num=`grep -c "^I:.*Cls=08" /proc/bus/usb/devices`
    for i in `seq 1 20`; do
        fin=`dmesg | grep -c "^usb-storage:.*device scan complete"`
        [ $num -eq $fin ] && break
        sleep 1
    done
fi

# Interate through all scsi/usb block-devices in /proc/partitions and check,
# whether its partition table was already scanned, wait up to 5 seconds
for device in `sed -n 's/.*\(sd[a-z]$\)/\1/p' /proc/partitions`
do
    for i in `seq 1 5`
    do
        dmesg | grep "^ $device:" && break
        sleep 1
    done
done

wait_for_mdev
# Disable DMA for Drives which are accesses via generic PCI-IDE Driver
# As this seems to cause some trouble with newer DMA-Capable CF-Cards
# and some IDE-Controllers
# Use the native Chipset IDE-Drivers and the Problem should be gone.
# Some IDE-to-CF Adapters don't have the DMA-Pins connected correctly
# If you have such an Adapter you should use the generic PCI-IDE Driver and
# live with the timeout at the startup or modify your adapter to be
# DMA-Capable

if [ -x /sbin/hdparm ]
then
  drivelist=''
  for path in /sys/bus/pci/devices/*
  do
    if [ -n "`ls -l $path/ | grep driver | grep PCI_IDE`" ]
    then
      for ide in $path/ide*
      do
        for port in $ide/[0-9].[0-9]
        do
          if [ -f $port/drivename ]
          then
            drivelist="$drivelist `cat $port/drivename`"
          fi
        done
      done
    fi
  done
  for drive in $drivelist
  do
    if [ -z "`/sbin/hdparm -d /dev/$drive | grep "using_dma.*=.*0"`" ]
    then
      /sbin/hdparm -Q 0 /dev/$drive >/dev/null 2>&1
      /sbin/hdparm -d0 /dev/$drive >/dev/null 2>&1
      /sbin/hdparm -X pio0 /dev/$drive >/dev/null 2>&1
    fi
  done
fi

end_script