Kconfig

#
# IDE ATA ATAPI Block device driver configuration
#
# Andre Hedrick <andre@linux-ide.org>
#

# Select HAVE_IDE if IDE is supported
config HAVE_IDE
	def_bool n

menuconfig IDE
	tristate "ATA/ATAPI/MFM/RLL support"
	depends on HAVE_IDE
	depends on BLOCK
	---help---
	  If you say Y here, your kernel will be able to manage low cost mass
	  storage units such as ATA/(E)IDE and ATAPI units. The most common
	  cases are IDE hard drives and ATAPI CD-ROM drives.

	  If your system is pure SCSI and doesn't use these interfaces, you
	  can say N here.

	  Integrated Disk Electronics (IDE aka ATA-1) is a connecting standard
	  for mass storage units such as hard disks. It was designed by
	  Western Digital and Compaq Computer in 1984. It was then named
	  ST506. Quite a number of disks use the IDE interface.

	  AT Attachment (ATA) is the superset of the IDE specifications.
	  ST506 was also called ATA-1.

	  Fast-IDE is ATA-2 (also named Fast ATA), Enhanced IDE (EIDE) is
	  ATA-3. It provides support for larger disks (up to 8.4GB by means of
	  the LBA standard), more disks (4 instead of 2) and for other mass
	  storage units such as tapes and cdrom. UDMA/33 (aka UltraDMA/33) is
	  ATA-4 and provides faster (and more CPU friendly) transfer modes
	  than previous PIO (Programmed processor Input/Output) from previous
	  ATA/IDE standards by means of fast DMA controllers.

	  ATA Packet Interface (ATAPI) is a protocol used by EIDE tape and
	  CD-ROM drives, similar in many respects to the SCSI protocol.

	  SMART IDE (Self Monitoring, Analysis and Reporting Technology) was
	  designed in order to prevent data corruption and disk crash by
	  detecting pre hardware failure conditions (heat, access time, and
	  the like...). Disks built since June 1995 may follow this standard.
	  The kernel itself doesn't manage this; however there are quite a
	  number of user programs such as smart that can query the status of
	  SMART parameters from disk drives.

	  To compile this driver as a module, choose M here: the
	  module will be called ide.

	  For further information, please read <file:Documentation/ide.txt>.

	  If unsure, say Y.

if IDE

config IDE_MAX_HWIFS
	int "Max IDE interfaces"
	depends on ALPHA || SUPERH || IA64 || EMBEDDED
	range 1 10
	default 4
	help
	  This is the maximum number of IDE hardware interfaces that will
	  be supported by the driver. Make sure it is at least as high as
	  the number of IDE interfaces in your system.

config BLK_DEV_IDE
	tristate "Enhanced IDE/MFM/RLL disk/cdrom/tape/floppy support"
	---help---
	  If you say Y here, you will use the full-featured IDE driver to
	  control up to ten ATA/IDE interfaces, each being able to serve a
	  "master" and a "slave" device, for a total of up to twenty ATA/IDE
	  disk/cdrom/tape/floppy drives.

	  Useful information about large (>540 MB) IDE disks, multiple
	  interfaces, what to do if ATA/IDE devices are not automatically
	  detected, sound card ATA/IDE ports, module support, and other
	  topics, is contained in <file:Documentation/ide.txt>. For detailed
	  information about hard drives, consult the Disk-HOWTO and the
	  Multi-Disk-HOWTO, available from
	  <http://www.tldp.org/docs.html#howto>.

	  To fine-tune ATA/IDE drive/interface parameters for improved
	  performance, look for the hdparm package at
	  <ftp://ibiblio.org/pub/Linux/system/hardware/>.

	  To compile this driver as a module, choose M here and read
	  <file:Documentation/ide.txt>. The module will be called ide-mod.
	  Do not compile this driver as a module if your root file system (the
	  one containing the directory /) is located on an IDE device.

	  If you have one or more IDE drives, say Y or M here. If your system
	  has no IDE drives, or if memory requirements are really tight, you
	  could say N here, and select the "Old hard disk driver" below
	  instead to save about 13 KB of memory in the kernel.

if BLK_DEV_IDE

comment "Please see Documentation/ide.txt for help/info on IDE drives"

config BLK_DEV_IDE_SATA
	bool "Support for SATA (deprecated; conflicts with libata SATA driver)"
	default n
	---help---
	  There are two drivers for Serial ATA controllers.

	  The main driver, "libata", uses the SCSI subsystem
	  and supports most modern SATA controllers. In order to use it
	  you may take a look at "Serial ATA (prod) and Parallel ATA
	  (experimental) drivers".

	  The IDE driver (which you are currently configuring) supports
	  a few first-generation SATA controllers.

	  In order to eliminate conflicts between the two subsystems,
	  this config option enables the IDE driver's SATA support.
	  Normally this is disabled, as it is preferred that libata
	  supports SATA controllers, and this (IDE) driver supports
	  PATA controllers.

	  If unsure, say N.

config BLK_DEV_HD_IDE
	bool "Use old disk-only driver on primary interface"
	depends on (X86 || SH_MPC1211)
	---help---
	  There are two drivers for MFM/RLL/IDE disks.  Most people use just
	  the new enhanced driver by itself.  This option however installs the
	  old hard disk driver to control the primary IDE/disk interface in
	  the system, leaving the new enhanced IDE driver to take care of only
	  the 2nd/3rd/4th IDE interfaces.  Doing this will prevent you from
	  having an IDE/ATAPI CD-ROM or tape drive connected to the primary
	  IDE interface.  Choosing this option may be useful for older systems
	  which have MFM/RLL/ESDI controller+drives at the primary port
	  address (0x1f0), along with IDE drives at the secondary/3rd/4th port
	  addresses.

	  Normally, just say N here; you will then use the new driver for all
	  4 interfaces.

config BLK_DEV_IDEDISK
	tristate "Include IDE/ATA-2 DISK support"
	---help---
	  This will include enhanced support for MFM/RLL/IDE hard disks.  If
	  you have a MFM/RLL/IDE disk, and there is no special reason to use
	  the old hard disk driver instead, say Y.  If you have an SCSI-only
	  system, you can say N here.

	  To compile this driver as a module, choose M here: the
	  module will be called ide-disk.
	  Do not compile this driver as a module if your root file system
	  (the one containing the directory /) is located on the IDE disk.

	  If unsure, say Y.

config IDEDISK_MULTI_MODE
	bool "Use multiple sector mode for Programmed Input/Output by default"
	help
	  This setting is irrelevant for most IDE disks, with direct memory
	  access, to which multiple sector mode does not apply. Multiple sector
	  mode is a feature of most modern IDE hard drives, permitting the
	  transfer of multiple sectors per Programmed Input/Output interrupt,
	  rather than the usual one sector per interrupt. When this feature is
	  enabled, it can reduce operating system overhead for disk Programmed
	  Input/Output. On some systems, it also can increase the data
	  throughput of Programmed Input/Output. Some drives, however, seemed
	  to run slower with multiple sector mode enabled. Some drives claimed
	  to support multiple sector mode, but lost data at some settings.
	  Under rare circumstances, such failures could result in massive
	  filesystem corruption.

	  If you get the following error, try to say Y here:

	  hda: set_multmode: status=0x51 { DriveReady SeekComplete Error }
	  hda: set_multmode: error=0x04 { DriveStatusError }

	  If in doubt, say N.

config BLK_DEV_IDECS
	tristate "PCMCIA IDE support"
	depends on PCMCIA
	help
	  Support for Compact Flash cards, outboard IDE disks, tape drives,
	  and CD-ROM drives connected through a PCMCIA card.

config BLK_DEV_DELKIN
	tristate "Cardbus IDE support (Delkin/ASKA/Workbit)"
	depends on CARDBUS && PCI
	help
	  Support for Delkin, ASKA, and Workbit Cardbus CompactFlash
	  Adapters.  This may also work for similar SD and XD adapters.

config BLK_DEV_IDECD
	tristate "Include IDE/ATAPI CDROM support"
	---help---
	  If you have a CD-ROM drive using the ATAPI protocol, say Y. ATAPI is
	  a newer protocol used by IDE CD-ROM and TAPE drives, similar to the
	  SCSI protocol. Most new CD-ROM drives use ATAPI, including the