Remove long-unmaintained ftape driver subsystem.

It's bitrotten, long unmaintained, long hidden under BROKEN_ON_SMP,
etc.  As scheduled in feature-removal-schedule.txt, and ack'd several
times on lkml.
Signed-off-by: NJeff Garzik <jeff@garzik.org>

Documentation/00-INDEX

@@ -104,8 +104,6 @@ firmware_class/
 	- request_firmware() hotplug interface info.
 floppy.txt
 	- notes and driver options for the floppy disk driver.
-ftape.txt
-	- notes about the floppy tape device driver.
 hayes-esp.txt
 	- info on using the Hayes ESP serial driver.
 highuid.txt

Documentation/feature-removal-schedule.txt

@@ -234,14 +234,6 @@ Who:	Jean Delvare <khali@linux-fr.org>
 
 ---------------------------
 
-What:	ftape
-When:	2.6.20
-Why:	Orphaned for ages.  SMP bugs long unfixed.  Few users left
-	in the world.
-Who:	Jeff Garzik <jeff@garzik.org>
-
----------------------------
-
 What:	IPv4 only connection tracking/NAT/helpers
 When:	2.6.22
 Why:	The new layer 3 independant connection tracking replaces the old

Documentation/ftape.txt

-Intro
-=====
-
-This file describes some issues involved when using the "ftape"
-floppy tape device driver that comes with the Linux kernel.
-
-ftape has a home page at
-
-http://ftape.dot-heine.de/
-
-which contains further information about ftape. Please cross check
-this WWW address against the address given (if any) in the MAINTAINERS
-file located in the top level directory of the Linux kernel source
-tree.
-
-NOTE: This is an unmaintained set of drivers, and it is not guaranteed to work.
-If you are interested in taking over maintenance, contact Claus-Justus Heine
-<ch@dot-heine.de>, the former maintainer.
-
-Contents
-========
-
-A minus 1: Ftape documentation
-
-A. Changes
-   1. Goal
-   2. I/O Block Size
-   3. Write Access when not at EOD (End Of Data) or BOT (Begin Of Tape)
-   4. Formatting
-   5. Interchanging cartridges with other operating systems
-
-B. Debugging Output
-   1. Introduction
-   2. Tuning the debugging output
-
-C. Boot and load time configuration
-   1. Setting boot time parameters
-   2. Module load time parameters
-   3. Ftape boot- and load time options
-   4. Example kernel parameter setting
-   5. Example module parameter setting
-
-D. Support and contacts
-
-*******************************************************************************
-
-A minus 1. Ftape documentation
-==============================
-
-Unluckily, the ftape-HOWTO is out of date. This really needs to be
-changed. Up to date documentation as well as recent development
-versions of ftape and useful links to related topics can be found at
-the ftape home page at
-
-http://ftape.dot-heine.de/
-
-*******************************************************************************
-
-A. Changes
-==========
-
-1. Goal
-   ~~~~
-   The goal of all that incompatibilities was to give ftape an interface
-   that resembles the interface provided by SCSI tape drives as close
-   as possible. Thus any Unix backup program that is known to work
-   with SCSI tape drives should also work.
-
-   The concept of a fixed block size for read/write transfers is
-   rather unrelated to this SCSI tape compatibility at the file system
-   interface level. It developed out of a feature of zftape, a
-   block wise user transparent on-the-fly compression. That compression
-   support will not be dropped in future releases for compatibility
-   reasons with previous releases of zftape.
-
-2. I/O Block Size
-   ~~~~~~~~~~~~~~
-   The block size defaults to 10k which is the default block size of
-   GNU tar.
-
-   The block size can be tuned either during kernel configuration or
-   at runtime with the MTIOCTOP ioctl using the MTSETBLK operation
-   (i.e. do "mt -f /dev/qft0" setblk #BLKSZ). A block size of 0
-   switches to variable block size mode i.e. "mt setblk 0" switches
-   off the block size restriction. However, this disables zftape's
-   built in on-the-fly compression which doesn't work with variable
-   block size mode.
-
-   The BLKSZ parameter must be given as a byte count and must be a
-   multiple of 32k or 0, i.e. use "mt setblk 32768" to switch to a
-   block size of 32k.
-
-   The typical symptom of a block size mismatch is an "invalid
-   argument" error message.
-
-3. Write Access when not at EOD (End Of Data) or BOT (Begin Of Tape)
-   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-   zftape (the file system interface of ftape-3.x) denies write access
-   to the tape cartridge when it isn't positioned either at BOT or
-   EOD.
-
-4. Formatting
-   ~~~~~~~~~~
-   ftape DOES support formatting of floppy tape cartridges. You need the
-   `ftformat' program that is shipped with the modules version of ftape.
-   Please get the latest version of ftape from
-
-   ftp://sunsite.unc.edu/pub/Linux/kernel/tapes
-
-   or from the ftape home page at
-
-   http://ftape.dot-heine.de/
-
-   `ftformat' is contained in the `./contrib/' subdirectory of that
-   separate ftape package.
-
-5. Interchanging cartridges with other operating systems
-   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-   The internal emulation of Unix tape device file marks has changed
-   completely. ftape now uses the volume table segment as specified
-   by the QIC-40/80/3010/3020/113 standards to emulate file marks. As
-   a consequence there is limited support to interchange cartridges
-   with other operating systems.
-
-   To be more precise: ftape will detect volumes written by other OS's
-   programs and other OS's programs will detect volumes written by
-   ftape.
-
-   However, it isn't possible to extract the data dumped to the tape
-   by some MSDOS program with ftape. This exceeds the scope of a
-   kernel device driver. If you need such functionality, then go ahead
-   and write a user space utility that is able to do that. ftape already
-   provides all kernel level support necessary to do that.
-
-*******************************************************************************
-
-B. Debugging Output
-   ================
-
-1. Introduction
-   ~~~~~~~~~~~~
-   The ftape driver can be very noisy in that is can print lots of
-   debugging messages to the kernel log files and the system console.
-   While this is useful for debugging it might be annoying during
-   normal use and enlarges the size of the driver by several kilobytes.
-
-   To reduce the size of the driver you can trim the maximal amount of
-   debugging information available during kernel configuration. Please
-   refer to the kernel configuration script and its on-line help
-   functionality.
-
-   The amount of debugging output maps to the "tracing" boot time
-   option and the "ft_tracing" modules option as follows:
-
-   0              bugs
-   1              + errors (with call-stack dump)
-   2              + warnings
-   3              + information
-   4              + more information
-   5              + program flow
-   6              + fdc/dma info
-   7              + data flow
-   8              + everything else
-
-2. Tuning the debugging output
-   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-   To reduce the amount of debugging output printed to the system
-   console you can
-
-   i)  trim the debugging output at run-time with
-
-       mt -f /dev/nqft0 setdensity #DBGLVL
-
-       where "#DBGLVL" is a number between 0 and 9
-
-   ii) trim the debugging output at module load time with
-
-       modprobe ftape ft_tracing=#DBGLVL
-
-       Of course, this applies only if you have configured ftape to be
-       compiled as a module.
-
-   iii) trim the debugging output during system boot time. Add the
-       following to the kernel command line:
-
-       ftape=#DBGLVL,tracing
-
-       Please refer also to the next section if you don't know how to
-       set boot time parameters.
-
-*******************************************************************************
-
-C. Boot and load time configuration
-   ================================
-
-1. Setting boot time parameters
-   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
-   Assuming that you use lilo, the LI)nux LO)ader, boot time kernel
-   parameters can be set by adding a line
-
-   append some_kernel_boot_time_parameter
-
-   to `/etc/lilo.conf' or at real boot time by typing in the options
-   at the prompt provided by LILO. I can't give you advice on how to
-   specify those parameters with other loaders as I don't use them.
-
-   For ftape, each "some_kernel_boot_time_parameter" looks like
-   "ftape=value,option". As an example, the debugging output can be
-   increased with
-
-   ftape=4,tracing
-
-   NOTE: the value precedes the option name.
-
-2. Module load time parameters
-   ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-   Module parameters can be specified either directly when invoking
-   the program 'modprobe' at the shell prompt:
-
-   modprobe ftape ft_tracing=4
-
-   or by editing the file `/etc/modprobe.conf' in which case they take
-   effect each time when the module is loaded with `modprobe' (please
-   refer to the respective manual pages). Thus, you should add a line
-
-   options ftape ft_tracing=4
-
-   to `/etc/modprobe.conf` if you intend to increase the debugging
-   output of the driver.
-
-
-3. Ftape boot- and load time options
-   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-   i.   Controlling the amount of debugging output
-        DBGLVL has to be replaced by a number between 0 and 8.
-
-        module                 |  kernel command line
-        -----------------------|----------------------
-        ft_tracing=DBGLVL      |  ftape=DBGLVL,tracing
-
-   ii.  Hardware setup
-	BASE is the base address of your floppy disk controller,
-        IRQ and DMA give its interrupt and DMA channel, respectively.
-        BOOL is an integer, "0" means "no"; any other value means
-	"yes". You don't need to specify anything if connecting your tape
-        drive to the standard floppy disk controller. All of these
-	values have reasonable defaults. The defaults can be modified
-	during kernel configuration, i.e. while running "make config",
-	"make menuconfig" or "make xconfig" in the top level directory
-	of the Linux kernel source tree. Please refer also to the on
-	line documentation provided during that kernel configuration
-	process.
-
-	ft_probe_fc10 is set to a non-zero value if you wish for ftape to
-	probe for a Colorado FC-10 or FC-20 controller.
-
-	ft_mach2 is set to a non-zero value if you wish for ftape to probe
-	for a Mountain MACH-2 controller.
-
-        module                 |  kernel command line
-        -----------------------|----------------------
-        ft_fdc_base=BASE       |  ftape=BASE,ioport
-        ft_fdc_irq=IRQ         |  ftape=IRQ,irq
-        ft_fdc_dma=DMA         |  ftape=DMA,dma
-        ft_probe_fc10=BOOL     |  ftape=BOOL,fc10
-        ft_mach2=BOOL          |  ftape=BOOL,mach2
-        ft_fdc_threshold=THR   |  ftape=THR,threshold
-        ft_fdc_rate_limit=RATE |  ftape=RATE,datarate
-
-4. Example kernel parameter setting
-   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
-   To configure ftape to probe for a Colorado FC-10/FC-20 controller
-   and to increase the amount of debugging output a little bit, add
-   the following line to `/etc/lilo.conf':
-
-   append ftape=1,fc10 ftape=4,tracing
-
-5. Example module parameter setting
-   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-   To do the same, but with ftape compiled as a loadable kernel
-   module, add the following line to `/etc/modprobe.conf':
-
-   options ftape ft_probe_fc10=1 ft_tracing=4
-
-*******************************************************************************
-
-D. Support and contacts
-   ====================
-
-   Ftape is distributed under the GNU General Public License. There is
-   absolutely no warranty for this software. However, you can reach
-   the current maintainer of the ftape package under the email address
-   given in the MAINTAINERS file which is located in the top level
-   directory of the Linux kernel source tree. There you'll find also
-   the relevant mailing list to use as a discussion forum and the web
-   page to query for the most recent documentation, related work and
-   development versions of ftape.
-
-   Changelog:
-   ==========
-
-~1996:		Original Document
-
-10-24-2004:	General cleanup and updating, noting additional module options.
-		James Nelson <james4765@gmail.com>

Documentation/kernel-parameters.txt

@@ -557,9 +557,6 @@ and is between 256 and 4096 characters. It is defined in the file
 	floppy=		[HW]
 			See Documentation/floppy.txt.
 
-	ftape=		[HW] Floppy Tape subsystem debugging options.
-			See Documentation/ftape.txt.
-
 	gamecon.map[2|3]=
 			[HW,JOY] Multisystem joystick and NES/SNES/PSX pad
 			support via parallel port (up to 5 devices per port)

MAINTAINERS

@@ -1166,11 +1166,6 @@ P:	David Howells
 M:	dhowells@redhat.com
 S:	Maintained
 
-FTAPE/QIC-117
-L:	linux-tape@vger.kernel.org
-W:	http://sourceforge.net/projects/ftape
-S:	Orphan
-
 FUSE: FILESYSTEM IN USERSPACE
 P:	Miklos Szeredi
 M:	miklos@szeredi.hu

drivers/char/Kconfig

@@ -855,39 +855,6 @@ config TANBAC_TB0219
 	depends TANBAC_TB022X
 	select GPIO_VR41XX
 
-menu "Ftape, the floppy tape device driver"
-
-config FTAPE
-	tristate "Ftape (QIC-80/Travan) support"
-	depends on BROKEN_ON_SMP && (ALPHA || X86)
-	---help---
-	  If you have a tape drive that is connected to your floppy
-	  controller, say Y here.
-
-	  Some tape drives (like the Seagate "Tape Store 3200" or the Iomega
-	  "Ditto 3200" or the Exabyte "Eagle TR-3") come with a "high speed"
-	  controller of their own. These drives (and their companion
-	  controllers) are also supported if you say Y here.
-
-	  If you have a special controller (such as the CMS FC-10, FC-20,
-	  Mountain Mach-II, or any controller that is based on the Intel 82078
-	  FDC like the high speed controllers by Seagate and Exabyte and
-	  Iomega's "Ditto Dash") you must configure it by selecting the
-	  appropriate entries from the "Floppy tape controllers" sub-menu
-	  below and possibly modify the default values for the IRQ and DMA
-	  channel and the IO base in ftape's configuration menu.
-
-	  If you want to use your floppy tape drive on a PCI-bus based system,
-	  please read the file <file:drivers/char/ftape/README.PCI>.
-
-	  The ftape kernel driver is also available as a runtime loadable
-	  module. To compile this driver as a module, choose M here: the
-	  module will be called ftape.
-
-source "drivers/char/ftape/Kconfig"
-
-endmenu
-
 source "drivers/char/agp/Kconfig"
 
 source "drivers/char/drm/Kconfig"

drivers/char/Makefile

@@ -78,7 +78,6 @@ obj-$(CONFIG_TOSHIBA)		+= toshiba.o
 obj-$(CONFIG_I8K)		+= i8k.o
 obj-$(CONFIG_DS1620)		+= ds1620.o
 obj-$(CONFIG_HW_RANDOM)		+= hw_random/
-obj-$(CONFIG_FTAPE)		+= ftape/
 obj-$(CONFIG_COBALT_LCD)	+= lcd.o
 obj-$(CONFIG_PPDEV)		+= ppdev.o
 obj-$(CONFIG_NWBUTTON)		+= nwbutton.o

drivers/char/ftape/Kconfig

-#
-# Ftape configuration
-#
-config ZFTAPE
-	tristate "Zftape, the VFS interface"
-	depends on FTAPE
-	---help---
-	  Normally, you want to say Y or M. DON'T say N here or you
-	  WON'T BE ABLE TO USE YOUR FLOPPY TAPE DRIVE.
-
-	  The ftape module itself no longer contains the routines necessary
-	  to interface with the kernel VFS layer (i.e. to actually write data
-	  to and read data from the tape drive).  Instead the file system
-	  interface (i.e. the hardware independent part of the driver) has
-	  been moved to a separate module.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called zftape.
-
-	  Regardless of whether you say Y or M here, an additional runtime
-	  loadable module called `zft-compressor' which contains code to
-	  support user transparent on-the-fly compression based on Ross
-	  William's lzrw3 algorithm will be produced.  If you have enabled the
-	  kernel module loader (i.e. have said Y to "Kernel module loader
-	  support", above) then `zft-compressor' will be loaded
-	  automatically by zftape when needed.
-
-	  Despite its name, zftape does NOT use compression by default.
-
-config ZFT_DFLT_BLK_SZ
-	int "Default block size"
-	depends on ZFTAPE
-	default "10240"
-	---help---
-	  If unsure leave this at its default value, i.e. 10240. Note that
-	  you specify only the default block size here. The block size can be
-	  changed at run time using the MTSETBLK tape operation with the
-	  MTIOCTOP ioctl (i.e. with "mt -f /dev/qft0 setblk #BLKSZ" from the
-	  shell command line).
-
-	  The probably most striking difference between zftape and previous
-	  versions of ftape is the fact that all data must be written or read
-	  in multiples of a fixed block size. The block size defaults to
-	  10240 which is what GNU tar uses. The values for the block size
-	  should be either 1 or multiples of 1024 up to a maximum value of
-	  63488 (i.e. 62 K). If you specify `1' then zftape's builtin
-	  compression will be disabled.
-
-	  Reasonable values are `10240' (GNU tar's default block size),
-	  `5120' (afio's default block size), `32768' (default block size some
-	  backup programs assume for SCSI tape drives) or `1' (no restriction
-	  on block size, but disables builtin compression).
-
-comment "The compressor will be built as a module only!"
-	depends on FTAPE && ZFTAPE
-
-config ZFT_COMPRESSOR
-	tristate
-	depends on FTAPE!=n && ZFTAPE!=n
-	default m
-
-config FT_NR_BUFFERS
-	int "Number of ftape buffers (EXPERIMENTAL)"
-	depends on FTAPE && EXPERIMENTAL
-	default "3"
-	help
-	  Please leave this at `3' unless you REALLY know what you are doing.
-	  It is not necessary to change this value. Values below 3 make the
-	  proper use of ftape impossible, values greater than 3 are a waste of
-	  memory. You can change the amount of DMA memory used by ftape at
-	  runtime with "mt -f /dev/qft0 setdrvbuffer #NUMBUFFERS". Each buffer
-	  wastes 32 KB of memory. Please note that this memory cannot be
-	  swapped out.
-
-config FT_PROC_FS
-	bool "Enable procfs status report (+2kb)"
-	depends on FTAPE && PROC_FS
-	---help---
-	  Optional. Saying Y will result in creation of a directory
-	  `/proc/ftape' under the /proc file system. The files can be viewed
-	  with your favorite pager (i.e. use "more /proc/ftape/history" or
-	  "less /proc/ftape/history" or simply "cat /proc/ftape/history"). The
-	  file will contain some status information about the inserted
-	  cartridge, the kernel driver, your tape drive, the floppy disk
-	  controller and the error history for the most recent use of the
-	  kernel driver. Saying Y will enlarge the size of the ftape driver
-	  by approximately 2 KB.
-
-	  WARNING: When compiling ftape as a module (i.e. saying M to "Floppy
-	  tape drive") it is dangerous to use ftape's /proc file system
-	  interface. Accessing `/proc/ftape' while the module is unloaded will
-	  result in a kernel Oops. This cannot be fixed from inside ftape.
-
-choice
-	prompt "Debugging output"
-	depends on FTAPE
-	default FT_NORMAL_DEBUG
-
-config FT_NORMAL_DEBUG
-	bool "Normal"
-	---help---
-	  This option controls the amount of debugging output the ftape driver
-	  is ABLE to produce; it does not increase or diminish the debugging
-	  level itself. If unsure, leave this at its default setting,
-	  i.e. choose "Normal".
-
-	  Ftape can print lots of debugging messages to the system console
-	  resp. kernel log files. Reducing the amount of possible debugging
-	  output reduces the size of the kernel module by some KB, so it might
-	  be a good idea to use "None" for emergency boot floppies.
-
-	  If you want to save memory then the following strategy is
-	  recommended: leave this option at its default setting "Normal" until
-	  you know that the driver works as expected, afterwards reconfigure
-	  the kernel, this time specifying "Reduced" or "None" and recompile
-	  and install the kernel as usual. Note that choosing "Excessive"
-	  debugging output does not increase the amount of debugging output
-	  printed to the console but only makes it possible to produce
-	  "Excessive" debugging output.
-
-	  Please read <file:Documentation/ftape.txt> for a short description
-	  how to control the amount of debugging output.
-
-config FT_FULL_DEBUG
-	bool "Excessive"
-	help
-	  Extremely verbose output for driver debugging purposes.
-
-config FT_NO_TRACE
-	bool "Reduced"
-	help
-	  Reduced tape driver debugging output.
-
-config FT_NO_TRACE_AT_ALL
-	bool "None"
-	help
-	  Suppress all debugging output from the tape drive.
-
-endchoice
-
-comment "Hardware configuration"
-	depends on FTAPE
-
-choice
-	prompt "Floppy tape controllers"
-	depends on FTAPE
-	default FT_STD_FDC
-
-config FT_STD_FDC
-	bool "Standard"
-	---help---
-	  Only change this setting if you have a special controller. If you
-	  didn't plug any add-on card into your computer system but just
-	  plugged the floppy tape cable into the already existing floppy drive
-	  controller then you don't want to change the default setting,
-	  i.e. choose "Standard".
-
-	  Choose "MACH-2" if you have a Mountain Mach-2 controller.
-	  Choose "FC-10/FC-20" if you have a Colorado FC-10 or FC-20
-	  controller.
-	  Choose "Alt/82078" if you have another controller that is located at
-	  an IO base address different from the standard floppy drive
-	  controller's base address of `0x3f0', or uses an IRQ (interrupt)
-	  channel different from `6', or a DMA channel different from
-	  `2'. This is necessary for any controller card that is based on
-	  Intel's 82078 FDC such as Seagate's, Exabyte's and Iomega's "high
-	  speed" controllers.
-
-	  If you choose something other than "Standard" then please make
-	  sure that the settings for the IO base address and the IRQ and DMA
-	  channel in the configuration menus below are correct. Use the manual
-	  of your tape drive to determine the correct settings!
-
-	  If you are already successfully using your tape drive with another
-	  operating system then you definitely should use the same settings
-	  for the IO base, the IRQ and DMA channel that have proven to work
-	  with that other OS.
-
-	  Note that this menu lets you specify only the default setting for
-	  the hardware setup. The hardware configuration can be changed at
-	  boot time (when ftape is compiled into the kernel, i.e. if you
-	  have said Y to "Floppy tape drive") or module load time (i.e. if you
-	  have said M to "Floppy tape drive").
-
-	  Please read also the file <file:Documentation/ftape.txt> which
-	  contains a short description of the parameters that can be set at
-	  boot or load time. If you want to use your floppy tape drive on a
-	  PCI-bus based system, please read the file
-	  <file:drivers/char/ftape/README.PCI>.
-
-config FT_MACH2
-	bool "MACH-2"
-
-config FT_PROBE_FC10
-	bool "FC-10/FC-20"
-
-config FT_ALT_FDC
-	bool "Alt/82078"
-
-endchoice
-
-comment "Consult the manuals of your tape drive for the correct settings!"
-	depends on FTAPE && !FT_STD_FDC
-
-config FT_FDC_BASE
-	hex "IO base of the floppy disk controller"
-	depends on FTAPE && !FT_STD_FDC
-	default "0"
-	---help---
-	  You don't need to specify a value if the following default
-	  settings for the base IO address are correct:
-	  <<< MACH-2     : 0x1E0 >>>
-	  <<< FC-10/FC-20: 0x180 >>>
-	  <<< Secondary  : 0x370 >>>
-	  Secondary refers to a secondary FDC controller like the "high speed"
-	  controllers delivered by Seagate or Exabyte or Iomega's Ditto Dash.
-	  Please make sure that the setting for the IO base address
-	  specified here is correct. USE THE MANUAL OF YOUR TAPE DRIVE OR
-	  CONTROLLER CARD TO DETERMINE THE CORRECT SETTING. If you are already
-	  successfully using the tape drive with another operating system then
-	  you definitely should use the same settings for the IO base that has
-	  proven to work with that other OS.
-
-	  Note that this menu lets you specify only the default setting for
-	  the IO base. The hardware configuration can be changed at boot time
-	  (when ftape is compiled into the kernel, i.e. if you specified Y to
-	  "Floppy tape drive") or module load time (i.e. if you have said M to
-	  "Floppy tape drive").
-
-	  Please read also the file <file:Documentation/ftape.txt> which
-	  contains a short description of the parameters that can be set at
-	  boot or load time.
-
-config FT_FDC_IRQ
-	int "IRQ channel of the floppy disk controller"
-	depends on FTAPE && !FT_STD_FDC
-	default "0"
-	---help---
-	  You don't need to specify a value if the following default
-	  settings for the interrupt channel are correct:
-	  <<< MACH-2     : 6 >>>
-	  <<< FC-10/FC-20: 9 >>>
-	  <<< Secondary  : 6 >>>
-	  Secondary refers to secondary a FDC controller like the "high speed"
-	  controllers delivered by Seagate or Exabyte or Iomega's Ditto Dash.
-	  Please make sure that the setting for the IO base address
-	  specified here is correct. USE THE MANUAL OF YOUR TAPE DRIVE OR
-	  CONTROLLER CARD TO DETERMINE THE CORRECT SETTING. If you are already
-	  successfully using the tape drive with another operating system then
-	  you definitely should use the same settings for the IO base that has
-	  proven to work with that other OS.
-
-	  Note that this menu lets you specify only the default setting for
-	  the IRQ channel. The hardware configuration can be changed at boot
-	  time (when ftape is compiled into the kernel, i.e. if you said Y to
-	  "Floppy tape drive") or module load time (i.e. if you said M to
-	  "Floppy tape drive").
-
-	  Please read also the file <file:Documentation/ftape.txt> which
-	  contains a short description of the parameters that can be set at
-	  boot or load time.
-
-config FT_FDC_DMA
-	int "DMA channel of the floppy disk controller"
-	depends on FTAPE && !FT_STD_FDC
-	default "0"
-	---help---
-	  You don't need to specify a value if the following default
-	  settings for the DMA channel are correct:
-	  <<< MACH-2     : 2 >>>
-	  <<< FC-10/FC-20: 3 >>>
-	  <<< Secondary  : 2 >>>
-	  Secondary refers to a secondary FDC controller like the "high speed"
-	  controllers delivered by Seagate or Exabyte or Iomega's Ditto Dash.
-	  Please make sure that the setting for the IO base address
-	  specified here is correct. USE THE MANUAL OF YOUR TAPE DRIVE OR
-	  CONTROLLER CARD TO DETERMINE THE CORRECT SETTING. If you are already
-	  successfully using the tape drive with another operating system then
-	  you definitely should use the same settings for the IO base that has
-	  proven to work with that other OS.
-
-	  Note that this menu lets you specify only the default setting for
-	  the DMA channel. The hardware configuration can be changed at boot
-	  time (when ftape is compiled into the kernel, i.e. if you said Y to
-	  "Floppy tape drive") or module load time (i.e. if you said M to
-	  "Floppy tape drive").
-
-	  Please read also the file <file:Documentation/ftape.txt> which
-	  contains a short description of the parameters that can be set at
-	  boot or load time.
-
-config FT_FDC_THR
-	int "Default FIFO threshold (EXPERIMENTAL)"
-	depends on FTAPE && EXPERIMENTAL
-	default "8"
-	help
-	  Set the FIFO threshold of the FDC. If this is higher the DMA
-	  controller may serve the FDC after a higher latency time. If this is
-	  lower, fewer DMA transfers occur leading to less bus contention.
-	  You may try to tune this if ftape annoys you with "reduced data
-	  rate because of excessive overrun errors" messages. However, this
-	  doesn't seem to have too much effect.
-
-	  If unsure, don't touch the initial value, i.e. leave it at "8".
-
-config FT_FDC_MAX_RATE
-	int "Maximal data rate to use (EXPERIMENTAL)"
-	depends on FTAPE && EXPERIMENTAL
-	default "2000"
-	---help---
-	  With some motherboard/FDC combinations ftape will not be able to
-	  run your FDC/tape drive combination at the highest available
-	  speed. If this is the case you'll encounter "reduced data rate
-	  because of excessive overrun errors" messages and lots of retries
-	  before ftape finally decides to reduce the data rate.
-
-	  In this case it might be desirable to tell ftape beforehand that
-	  it need not try to run the tape drive at the highest available
-	  speed. If unsure, leave this disabled, i.e. leave it at 2000
-	  bits/sec.
-
-config FT_ALPHA_CLOCK
-	int "CPU clock frequency of your DEC Alpha" if ALPHA
-	depends on FTAPE
-	default "0"
-	help
-	  On some DEC Alpha machines the CPU clock frequency cannot be
-	  determined automatically, so you need to specify it here ONLY if
-	  running a DEC Alpha, otherwise this setting has no effect.
-

drivers/char/ftape/Makefile

-#
-#       Copyright (C) 1997 Claus Heine.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-# 
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-# 
-# You should have received a copy of the GNU General Public License
-# along with this program; see the file COPYING.  If not, write to
-# the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-#
-# $Source: /homes/cvs/ftape-stacked/ftape/Makefile,v $
-# $Revision: 1.4 $
-# $Date: 1997/10/05 19:17:56 $
-#
-#      Makefile for the QIC-40/80/3010/3020 floppy-tape driver for
-#      Linux.
-#
-
-obj-$(CONFIG_FTAPE)		+= lowlevel/
-obj-$(CONFIG_ZFTAPE)		+= zftape/
-obj-$(CONFIG_ZFT_COMPRESSOR)	+= compressor/

drivers/char/ftape/README.PCI

-Some notes for ftape users with PCI motherboards:
-=================================================
-
-The problem:
-------------
-
-There have been some problem reports from people using PCI-bus based
-systems getting overrun errors.
-I wasn't able to reproduce these until I ran ftape on a Intel Plato
-(Premiere PCI II) motherboard with bios version 1.00.08AX1.
-It turned out that if GAT (Guaranteed Access Timing) is enabled (?)
-ftape gets a lot of overrun errors.
-The problem disappears when disabling GAT in the bios.
-Note that Intel removed this setting (permanently disabled) from the
-1.00.10AX1 bios !
-
-It looks like that if GAT is enabled there are often large periods
-(greater than 120 us !??) on the ISA bus that the DMA controller cannot
-service the floppy disk controller.
-I cannot imagine this being acceptable in a decent PCI implementation.
-Maybe this is a `feature' of the chipset. I can only speculate why
-Intel choose to remove the option from the latest Bios...
-
-The lesson of this all is that there may be other motherboard
-implementations having the same of similar problems.
-If you experience a lot of overrun errors during a backup to tape,
-see if there is some setting in the Bios that may influence the
-bus timing.
-
-I judge this a hardware problem and not a limitation of ftape ;-)
-My DOS backup software seems to be suffering from the same problems
-and even refuses to run at 1 Mbps !
-Ftape will reduce the data-rate from 1 Mbps to 500 Kbps if the number
-of overrun errors on a track exceeds a threshold.
-
-
-Possible solutions:
--------------------
-
-Some of the problems were solved by upgrading the (flash) bios.
-Other suggest that it has to do with the FDC being on the PCI
-bus, but that is not the case with the Intel Premiere II boards.
-[If upgrading the bios doesn't solve the problem you could try
-a floppy disk controller on the isa-bus].
-
-Here is a list of systems and recommended BIOS settings:
-
-
-        Intel Premiere PCI (Revenge):
-
-Bios version 1.00.09.AF2 is reported to work.
-
-
-
-        Intel Premiere PCI II (Plato):
-
-Bios version 1.00.10.AX1 and version 11 beta are ok.
-If using version 1.00.08.AX1, GAT must be disabled !
-
-
-
-        ASUS PCI/I-SP3G:
-
-Preferred settings:     ISA-GAT-mode : disabled
-                        DMA-linebuffer-mode : standard
-                        ISA-masterbuffer-mode : standard
-
-
-        DELL Dimension XPS P90
-
-Bios version A2 is reported to be broken, while bios version A5 works.
-You can get a flash bios upgrade from http://www.dell.com
-
-
-To see if you're having the GAT problem, try making a backup
-under DOS. If it's very slow and often repositions you're
-probably having this problem.
-
-                        --//--
- LocalWords:  ftape PCI bios GAT ISA DMA chipset Mbps Kbps FDC isa AF ok ASUS
- LocalWords:  SP linebuffer masterbuffer XPS http www com

drivers/char/ftape/compressor/Makefile

-#
-#       Copyright (C) 1997 Claus-Justus Heine.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-# 
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-# 
-# You should have received a copy of the GNU General Public License
-# along with this program; see the file COPYING.  If not, write to
-# the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-#
-# $Source: /homes/cvs/ftape-stacked/ftape/compressor/Makefile,v $
-# $Revision: 1.1 $
-# $Date: 1997/10/05 19:12:28 $
-#
-#      Makefile for the optional compressor for th zftape VFS
-#      interface to the QIC-40/80/3010/3020 floppy-tape driver for
-#      Linux.
-#
-
-obj-$(CONFIG_ZFT_COMPRESSOR) += zft-compressor.o
-
-zft-compressor-objs := zftape-compress.o lzrw3.o
-
-CFLAGS_lzrw3.o	:= -O6 -funroll-all-loops

drivers/char/ftape/compressor/lzrw3.h

-#ifndef _LZRW3_H
-#define _LZRW3_H
-/*
- * $Source: /homes/cvs/ftape-stacked/ftape/compressor/lzrw3.h,v $
- * $Revision: 1.1 $
- * $Date: 1997/10/05 19:12:30 $
- *
- *  include files for lzrw3. Only slighty modified from the original
- *  version. Assembles the three include files compress.h, port.h and
- *  fastcopy.h from the original lzrw3 package.
- *
- */
-
-#include <linux/types.h>
-#include <linux/string.h>
-
-/******************************************************************************/
-/*                                                                            */
-/*                                 COMPRESS.H                                 */
-/*                                                                            */
-/******************************************************************************/
-/*                                                                            */
-/* Author : Ross Williams.                                                    */
-/* Date   : December 1989.                                                    */
-/*                                                                            */
-/* This header file defines the interface to a set of functions called        */
-/* 'compress', each member of which implements a particular data compression  */
-/* algorithm.                                                                 */
-/*                                                                            */
-/* Normally in C programming, for each .H file, there is a corresponding .C   */
-/* file that implements the functions promised in the .H file.                */
-/* Here, there are many .C files corresponding to this header file.           */
-/* Each comforming implementation file contains a single function             */
-/* called 'compress' that implements a single data compression                */
-/* algorithm that conforms with the interface specified in this header file.  */
-/* Only one algorithm can be linked in at a time in this organization.        */
-/*                                                                            */
-/******************************************************************************/
-/*                                                                            */
-/*                    DEFINITION OF FUNCTION COMPRESS                         */
-/*                    ===============================                         */
-/*                                                                            */
-/* Summary of Function Compress                                               */
-/* ----------------------------                                               */
-/* The action that 'compress' takes depends on its first argument called      */
-/* 'action'.  The function provides three actions:                            */
-/*                                                                            */
-/*    - Return information about the algorithm.                               */
-/*    - Compress   a block of memory.                                         */
-/*    - Decompress a block of memory.                                         */
-/*                                                                            */
-/* Parameters                                                                 */
-/* ----------                                                                 */
-/* See the formal C definition later for a description of the parameters.     */
-/*                                                                            */
-/* Constants                                                                  */
-/* ---------                                                                  */
-/* COMPRESS_OVERRUN: The constant COMPRESS_OVERRUN defines by how many bytes  */
-/* an algorithm is allowed to expand a block during a compression operation.  */
-/*                                                                            */
-/* Although compression algorithms usually compress data, there will always   */
-/* be data that a given compressor will expand (this can be proven).          */
-/* Fortunately, the degree of expansion can be limited to a single bit, by    */
-/* copying over the input data if the data gets bigger during compression.    */
-/* To allow for this possibility, the first bit of a compressed               */
-/* representation can be used as a flag indicating whether the                */
-/* input data was copied over, or truly compressed. In practice, the first    */
-/* byte would be used to store this bit so as to maintain byte alignment.     */
-/*                                                                            */
-/* Unfortunately, in general, the only way to tell if an algorithm will       */
-/* expand a particular block of data is to run the algorithm on the data.     */
-/* If the algorithm does not continuously monitor how many output bytes it    */
-/* has written, it might write an output block far larger than the input      */
-/* block before realizing that it has done so.                                */
-/* On the other hand, continuous checks on output length are inefficient.     */
-/*                                                                            */
-/* To cater for all these problems, this interface definition:                */
-/* > Allows a compression algorithm to return an output block that is up to   */
-/*   COMPRESS_OVERRUN bytes longer than the input block.                      */
-/* > Allows a compression algorithm to write up to COMPRESS_OVERRUN bytes     */
-/*   more than the length of the input block to the memory of the output      */
-/*   block regardless of the length of the output block eventually returned.  */
-/*   This allows an algorithm to overrun the length of the input block in the */
-/*   output block by up to COMPRESS_OVERRUN bytes between expansion checks.   */
-/*                                                                            */
-/* The problem does not arise for decompression.                              */
-/*                                                                            */
-/* Identity Action                                                            */
-/* ---------------                                                            */
-/* > action must be COMPRESS_ACTION_IDENTITY.                                 */
-/* > p_dst_len must point to a longword to receive a longword address.        */
-/* > The value of the other parameters does not matter.                       */
-/* > After execution, the longword that p_dst_len points to will be a pointer */
-/*   to a structure of type compress_identity.                                */
-/*   Thus, for example, after the call, (*p_dst_len)->memory will return the  */
-/*   number of bytes of working memory that the algorithm requires to run.    */
-/* > The values of the identity structure returned are fixed constant         */
-/*   attributes of the algorithm and must not vary from call to call.         */
-/*                                                                            */
-/* Common Requirements for Compression and Decompression Actions              */
-/* -------------------------------------------------------------              */
-/* > wrk_mem must point to an unused block of memory of a length specified in */
-/*   the algorithm's identity block. The identity block can be obtained by    */
-/*   making a separate call to compress, specifying the identity action.      */
-/* > The INPUT BLOCK is defined to be Memory[src_addr,src_addr+src_len-1].    */
-/* > dst_len will be used to denote *p_dst_len.                               */
-/* > dst_len is not read by compress, only written.                           */
-/* > The value of dst_len is defined only upon termination.                   */
-/* > The OUTPUT BLOCK is defined to be Memory[dst_addr,dst_addr+dst_len-1].   */
-/*                                                                            */
-/* Compression Action                                                         */
-/* ------------------                                                         */
-/* > action must be COMPRESS_ACTION_COMPRESS.                                 */
-/* > src_len must be in the range [0,COMPRESS_MAX_ORG].                       */
-/* > The OUTPUT ZONE is defined to be                                         */
-/*      Memory[dst_addr,dst_addr+src_len-1+COMPRESS_OVERRUN].                 */
-/* > The function can modify any part of the output zone regardless of the    */
-/*   final length of the output block.                                        */
-/* > The input block and the output zone must not overlap.                    */
-/* > dst_len will be in the range [0,src_len+COMPRESS_OVERRUN].               */
-/* > dst_len will be in the range [0,COMPRESS_MAX_COM] (from prev fact).      */
-/* > The output block will consist of a representation of the input block.    */
-/*                                                                            */
-/* Decompression Action                                                       */
-/* --------------------                                                       */
-/* > action must be COMPRESS_ACTION_DECOMPRESS.                               */
-/* > The input block must be the result of an earlier compression operation.  */
-/* > If the previous fact is true, the following facts must also be true:     */
-/*   > src_len will be in the range [0,COMPRESS_MAX_COM].                     */
-/*   > dst_len will be in the range [0,COMPRESS_MAX_ORG].                     */
-/* > The input and output blocks must not overlap.                            */
-/* > Only the output block is modified.                                       */
-/* > Upon termination, the output block will consist of the bytes contained   */
-/*   in the input block passed to the earlier compression operation.          */
-/*                                                                            */
-/******************************************************************************/
-
-/******************************************************************************/
-/*                                                                            */
-/*                                    PORT.H                                  */
-/*                                                                            */
-/******************************************************************************/
-/*                                                                            */
-/* This module contains macro definitions and types that are likely to        */
-/* change between computers.                                                  */
-/*                                                                            */
-/******************************************************************************/
-
-#ifndef DONE_PORT       /* Only do this if not previously done.               */
-
-   #ifdef THINK_C
-      #define UBYTE unsigned char      /* Unsigned byte                       */
-      #define UWORD unsigned int       /* Unsigned word (2 bytes)             */
-      #define ULONG unsigned long      /* Unsigned word (4 bytes)             */
-      #define BOOL  unsigned char      /* Boolean                             */
-      #define FOPEN_BINARY_READ  "rb"  /* Mode string for binary reading.     */
-      #define FOPEN_BINARY_WRITE "wb"  /* Mode string for binary writing.     */
-      #define FOPEN_TEXT_APPEND  "a"   /* Mode string for text appending.     */
-      #define REAL double              /* USed for floating point stuff.      */
-   #endif
-   #if defined(LINUX) || defined(linux)
-      #define UBYTE __u8               /* Unsigned byte                       */
-      #define UWORD __u16              /* Unsigned word (2 bytes)             */
-      #define ULONG __u32              /* Unsigned word (4 bytes)             */
-      #define LONG  __s32              /* Signed   word (4 bytes)             */
-      #define BOOL  is not used here   /* Boolean                             */
-      #define FOPEN_BINARY_READ  not used  /* Mode string for binary reading. */
-      #define FOPEN_BINARY_WRITE not used  /* Mode string for binary writing. */
-      #define FOPEN_TEXT_APPEND  not used  /* Mode string for text appending. */
-      #define REAL not used                /* USed for floating point stuff.  */
-      #ifndef TRUE
-      #define TRUE 1
-      #endif
-   #endif
-
-   #define DONE_PORT                   /* Don't do all this again.            */
-   #define MALLOC_FAIL NULL            /* Failure status from malloc()        */
-   #define LOCAL static                /* For non-exported routines.          */
-   #define EXPORT                      /* Signals exported function.          */
-   #define then                        /* Useful for aligning ifs.            */
-
-#endif
-
-/******************************************************************************/
-/*                              End of PORT.H                                 */
-/******************************************************************************/
-
-#define COMPRESS_ACTION_IDENTITY   0
-#define COMPRESS_ACTION_COMPRESS   1
-#define COMPRESS_ACTION_DECOMPRESS 2
-
-#define COMPRESS_OVERRUN 1024
-#define COMPRESS_MAX_COM 0x70000000
-#define COMPRESS_MAX_ORG (COMPRESS_MAX_COM-COMPRESS_OVERRUN)
-
-#define COMPRESS_MAX_STRLEN 255
-
-/* The following structure provides information about the algorithm.         */
-/* > The top bit of id must be zero. The remaining bits must be chosen by    */
-/*   the author of the algorithm by tossing a coin 31 times.                 */
-/* > The amount of memory requested by the algorithm is specified in bytes   */
-/*   and must be in the range [0,0x70000000].                                */
-/* > All strings s must be such that strlen(s)<=COMPRESS_MAX_STRLEN.         */
-struct compress_identity
-  {
-   ULONG id;           /* Identifying number of algorithm.            */
-   ULONG memory;       /* Number of bytes of working memory required. */
-
-   char  *name;        /* Name of algorithm.                          */
-   char  *version;     /* Version number.                             */
-   char  *date;        /* Date of release of this version.            */
-   char  *copyright;   /* Copyright message.                          */
-
-   char  *author;      /* Author of algorithm.                        */
-   char  *affiliation; /* Affiliation of author.                      */
-   char  *vendor;      /* Where the algorithm can be obtained.        */
-  };
-
-void  lzrw3_compress(        /* Single function interface to compression algorithm. */
-UWORD     action,      /* Action to be performed.                             */
-UBYTE   *wrk_mem,      /* Working memory temporarily given to routine to use. */
-UBYTE   *src_adr,      /* Address of input  data.                             */
-LONG     src_len,      /* Length  of input  data.                             */
-UBYTE   *dst_adr,      /* Address of output data.                             */
-void  *p_dst_len       /* Pointer to a longword where routine will write:     */
-                       /*    If action=..IDENTITY   => Adr of id structure.   */
-                       /*    If action=..COMPRESS   => Length of output data. */
-                       /*    If action=..DECOMPRESS => Length of output data. */
-);
-
-/******************************************************************************/
-/*                             End of COMPRESS.H                              */
-/******************************************************************************/
-
-
-/******************************************************************************/
-/*                                  fast_copy.h                               */
-/******************************************************************************/
-
-/* This function copies a block of memory very quickly.                       */
-/* The exact speed depends on the relative alignment of the blocks of memory. */
-/* PRE  : 0<=src_len<=(2^32)-1 .                                              */
-/* PRE  : Source and destination blocks must not overlap.                     */
-/* POST : MEM[dst_adr,dst_adr+src_len-1]=MEM[src_adr,src_adr+src_len-1].      */
-/* POST : MEM[dst_adr,dst_adr+src_len-1] is the only memory changed.          */
-
-#define fast_copy(src,dst,len) memcpy(dst,src,len)
-
-/******************************************************************************/
-/*                               End of fast_copy.h                           */
-/******************************************************************************/
-
-#endif

drivers/char/ftape/compressor/zftape-compress.h

-#ifndef _ZFTAPE_COMPRESS_H
-#define _ZFTAPE_COMPRESS_H
-/*
- *      Copyright (c) 1994-1997 Claus-Justus Heine
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2, or (at
- your option) any later version.
- 
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- General Public License for more details.
- 
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING.  If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139,
- USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/compressor/zftape-compress.h,v $
- * $Revision: 1.1 $
- * $Date: 1997/10/05 19:12:32 $
- *
- * This file contains macros and definitions for zftape's
- * builtin compression code.
- *
- */
-
-#include "../zftape/zftape-buffers.h"
-#include "../zftape/zftape-vtbl.h"
-#include "../compressor/lzrw3.h"
-
-/* CMPR_WRK_MEM_SIZE gives the size of the compression wrk_mem */
-/* I got these out of lzrw3.c */
-#define U(X)            ((__u32) X)
-#define SIZE_P_BYTE     (U(sizeof(__u8 *)))
-#define ALIGNMENT_FUDGE (U(16))
-
-#define CMPR_WRK_MEM_SIZE (U(4096)*(SIZE_P_BYTE) + ALIGNMENT_FUDGE)
-
-/* the maximum number of bytes the size of the "compressed" data can
- * exceed the uncompressed data. As it is quite useless to compress
- * data twice it is sometimes the case that it is more efficient to
- * copy a block of data but to feed it to the "compression"
- * algorithm. In this case there are some flag bytes or the like
- * proceding the "compressed" data.  THAT MUST NOT BE THE CASE for the
- * algorithm we use for this driver. Instead, the high bit 15 of
- * compressed_size:
- *
- * compressed_size = ftape_compress()
- *
- * must be set in such a case.
- *
- * Nevertheless, it might also be as for lzrw3 that there is an
- * "intermediate" overrun that exceeds the amount of the compressed
- * data that is actually produced. During the algorithm we need in the
- * worst case MAX_CMP_GROUP bytes more than the input-size.
- */
-#define MAX_CMP_GROUP (2+16*2) /* from lzrw3.c */
-
-#define CMPR_OVERRUN      MAX_CMP_GROUP /* during compression */
-
-/****************************************************/
-
-#define     CMPR_BUFFER_SIZE (MAX_BLOCK_SIZE + CMPR_OVERRUN)
-
-/* the compression map stores the byte offset compressed blocks within
- * the current volume for catridges with format code 2,3 and 5
- * (and old versions of zftape) and the offset measured in kilobytes for
- * format code 4 and 6. This gives us a possible max. size of a 
- * compressed volume of 1024*4GIG which should be enough.
- */
-typedef __u32 CmprMap;
-
-/* globals 
- */
-
-/* exported functions
- */
-
-#endif /* _ZFTAPE_COMPRESS_H */

drivers/char/ftape/lowlevel/Makefile

-#
-#       Copyright (C) 1996, 1997 Clau-Justus Heine.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-# 
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-# 
-# You should have received a copy of the GNU General Public License
-# along with this program; see the file COPYING.  If not, write to
-# the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-#
-# $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/Makefile,v $
-# $Revision: 1.4 $
-# $Date: 1997/10/07 09:26:02 $
-#
-#      Makefile for the lowlevel part QIC-40/80/3010/3020 floppy-tape
-#      driver for Linux.
-#
-
-obj-$(CONFIG_FTAPE) += ftape.o
-
-ftape-objs := ftape-init.o fdc-io.o fdc-isr.o \
-	      ftape-bsm.o ftape-ctl.o ftape-read.o ftape-rw.o \
-	      ftape-write.o ftape-io.o ftape-calibr.o ftape-ecc.o fc-10.o \
-	      ftape-buffer.o ftape-format.o ftape_syms.o
-
-ifeq ($(CONFIG_FTAPE),y)
-ftape-objs += ftape-setup.o
-endif
-
-ifndef CONFIG_FT_NO_TRACE_AT_ALL
-ftape-objs += ftape-tracing.o
-endif
-
-ifeq ($(CONFIG_FT_PROC_FS),y)
-ftape-objs += ftape-proc.o
-endif

drivers/char/ftape/lowlevel/fc-10.c

-/*
- *
-
-   Copyright (C) 1993,1994 Jon Tombs.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   The entire guts of this program was written by dosemu, modified to
-   record reads and writes to the ports in the 0x180-0x188 address space,
-   while running the CMS program TAPE.EXE V2.0.5 supplied with the drive.
-
-   Modified to use an array of addresses and generally cleaned up (made
-   much shorter) 4 June 94, dosemu isn't that good at writing short code it
-   would seem :-). Made independent of 0x180, but I doubt it will work
-   at any other address.
-
-   Modified for distribution with ftape source. 21 June 94, SJL.
-
-   Modifications on 20 October 95, by Daniel Cohen (catman@wpi.edu):
-   Modified to support different DMA, IRQ, and IO Ports.  Borland's
-   Turbo Debugger in virtual 8086 mode (TD386.EXE with hardware breakpoints
-   provided by the TDH386.SYS Device Driver) was used on the CMS program
-   TAPE V4.0.5.  I set breakpoints on I/O to ports 0x180-0x187.  Note that
-   CMS's program will not successfully configure the tape drive if you set
-   breakpoints on IO Reads, but you can set them on IO Writes without problems.
-   Known problems:
-   - You can not use DMA Channels 5 or 7.
-
-   Modification on 29 January 96, by Daniel Cohen (catman@wpi.edu):
-   Modified to only accept IRQs 3 - 7, or 9.  Since we can only send a 3 bit
-   number representing the IRQ to the card, special handling is required when
-   IRQ 9 is selected.  IRQ 2 and 9 are the same, and we should request IRQ 9
-   from the kernel while telling the card to use IRQ 2.  Thanks to Greg
-   Crider (gcrider@iclnet.org) for finding and locating this bug, as well as
-   testing the patch.
-
-   Modification on 11 December 96, by Claus Heine (claus@momo.math.rwth-aachen.de):
-   Modified a little to use variahle ft_fdc_base, ft_fdc_irq, ft_fdc_dma 
-   instead of preprocessor symbols. Thus we can compile this into the module
-   or kernel and let the user specify the options as command line arguments.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/fc-10.c,v $
- * $Revision: 1.2 $
- * $Date: 1997/10/05 19:18:04 $
- *
- *      This file contains code for the CMS FC-10/FC-20 card.
- */
-
-#include <asm/io.h>
-#include <linux/ftape.h>
-#include "../lowlevel/ftape-tracing.h"
-#include "../lowlevel/fdc-io.h"
-#include "../lowlevel/fc-10.h"
-
-static __u16 inbs_magic[] = {
-	0x3, 0x3, 0x0, 0x4, 0x7, 0x2, 0x5, 0x3, 0x1, 0x4,
-	0x3, 0x5, 0x2, 0x0, 0x3, 0x7, 0x4, 0x2,
-	0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7
-};
-
-static __u16 fc10_ports[] = {
-	0x180, 0x210, 0x2A0, 0x300, 0x330, 0x340, 0x370
-};
-
-int fc10_enable(void)
-{
-	int i;
-	__u8 cardConfig = 0x00;
-	__u8 x;
-	TRACE_FUN(ft_t_flow);
-
-/*  This code will only work if the FC-10 (or FC-20) is set to
- *  use DMA channels 1, 2, or 3.  DMA channels 5 and 7 seem to be 
- *  initialized by the same command as channels 1 and 3, respectively.
- */
-	if (ft_fdc_dma > 3) {
-		TRACE_ABORT(0, ft_t_err,
-"Error: The FC-10/20 must be set to use DMA channels 1, 2, or 3!");
-	}
-/*  Only allow the FC-10/20 to use IRQ 3-7, or 9.  Note that CMS's program
- *  only accepts IRQ's 2-7, but in linux, IRQ 2 is the same as IRQ 9.
- */
-	if (ft_fdc_irq < 3 || ft_fdc_irq == 8 || ft_fdc_irq > 9) {
-		TRACE_ABORT(0, ft_t_err, 
-"Error: The FC-10/20 must be set to use IRQ levels 3 - 7, or 9!\n"
-KERN_INFO "Note: IRQ 9 is the same as IRQ 2");
-	}
-	/*  Clear state machine ???
-	 */
-	for (i = 0; i < NR_ITEMS(inbs_magic); i++) {
-		inb(ft_fdc_base + inbs_magic[i]);
-	}
-	outb(0x0, ft_fdc_base);
-
-	x = inb(ft_fdc_base);
-	if (x == 0x13 || x == 0x93) {
-		for (i = 1; i < 8; i++) {
-			if (inb(ft_fdc_base + i) != x) {
-				TRACE_EXIT 0;
-			}
-		}
-	} else {
-		TRACE_EXIT 0;
-	}
-
-	outb(0x8, ft_fdc_base);
-
-	for (i = 0; i < 8; i++) {
-		if (inb(ft_fdc_base + i) != 0x0) {
-			TRACE_EXIT 0;
-		}
-	}
-	outb(0x10, ft_fdc_base);
-
-	for (i = 0; i < 8; i++) {
-		if (inb(ft_fdc_base + i) != 0xff) {
-			TRACE_EXIT 0;
-		}
-	}
-
-	/*  Okay, we found a FC-10 card ! ???
-	 */
-	outb(0x0, fdc.ccr);
-
-	/*  Clear state machine again ???
-	 */
-	for (i = 0; i < NR_ITEMS(inbs_magic); i++) {
-		inb(ft_fdc_base + inbs_magic[i]);
-	}
-	/* Send io port */
-	for (i = 0; i < NR_ITEMS(fc10_ports); i++)
-		if (ft_fdc_base == fc10_ports[i])
-			cardConfig = i + 1;
-	if (cardConfig == 0) {
-		TRACE_EXIT 0;	/* Invalid I/O Port */
-	}
-	/* and IRQ - If using IRQ 9, tell the FC card it is actually IRQ 2 */
-	if (ft_fdc_irq != 9)
-		cardConfig |= ft_fdc_irq << 3;
-	else
-		cardConfig |= 2 << 3;
-
-	/* and finally DMA Channel */
-	cardConfig |= ft_fdc_dma << 6;
-	outb(cardConfig, ft_fdc_base);	/* DMA [2 bits]/IRQ [3 bits]/BASE [3 bits] */
-
-	/*  Enable FC-10 ???
-	 */
-	outb(0, fdc.ccr);
-	outb(0, fdc.dor2);
-	outb(FDC_DMA_MODE /* 8 */, fdc.dor);
-	outb(FDC_DMA_MODE /* 8 */, fdc.dor);
-	outb(1, fdc.dor2);
-
-	/*************************************
-	 *
-	 * cH: why the hell should this be necessary? This is done 
-	 *     by fdc_reset()!!!
-	 *
-	 *************************************/
-	/*  Initialize fdc, select drive B:
-	 */
-	outb(FDC_DMA_MODE, fdc.dor);	/* assert reset, dma & irq enabled */
-	/*       0x08    */
-	outb(FDC_DMA_MODE|FDC_RESET_NOT, fdc.dor);	/* release reset */
-	/*       0x08    |   0x04   = 0x0c */
-	outb(FDC_DMA_MODE|FDC_RESET_NOT|FDC_MOTOR_1|FTAPE_SEL_B, fdc.dor);
-	/*       0x08    |   0x04      |  0x20     |  0x01  = 0x2d */    
-	/* select drive 1 */ /* why not drive 0 ???? */
-	TRACE_EXIT (x == 0x93) ? 2 : 1;
-}

drivers/char/ftape/lowlevel/fc-10.h

-#ifndef _FC_10_H
-#define _FC_10_H
-
-/*
- * Copyright (C) 1994-1996 Bas Laarhoven.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING.  If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/fc-10.h,v $
- * $Revision: 1.1 $
- * $Date: 1997/09/19 09:05:22 $
- *
- *      This file contains definitions for the FC-10 code
- *      of the QIC-40/80 floppy-tape driver for Linux.
- */
-
-/*
- *      fc-10.c defined global vars.
- */
-
-/*
- *      fc-10.c defined global functions.
- */
-extern int fc10_enable(void);
-
-#endif

drivers/char/ftape/lowlevel/fdc-io.h

-#ifndef _FDC_IO_H
-#define _FDC_IO_H
-
-/*
- *    Copyright (C) 1993-1996 Bas Laarhoven,
- *              (C) 1996-1997 Claus-Justus Heine.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING.  If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/fdc-io.h,v $
- * $Revision: 1.3 $
- * $Date: 1997/10/05 19:18:06 $
- *
- *      This file contains the declarations for the low level
- *      functions that communicate with the floppy disk controller,
- *      for the QIC-40/80/3010/3020 floppy-tape driver "ftape" for
- *      Linux.
- */
-
-#include <linux/fdreg.h>
-
-#include "../lowlevel/ftape-bsm.h"
-
-#define FDC_SK_BIT      (0x20)
-#define FDC_MT_BIT      (0x80)
-
-#define FDC_READ        (FD_READ & ~(FDC_SK_BIT | FDC_MT_BIT))
-#define FDC_WRITE       (FD_WRITE & ~FDC_MT_BIT)
-#define FDC_READ_DELETED  (0x4c)
-#define FDC_WRITE_DELETED (0x49)
-#define FDC_VERIFY        (0x56)
-#define FDC_READID      (0x4a)
-#define FDC_SENSED      (0x04)
-#define FDC_SENSEI      (FD_SENSEI)
-#define FDC_FORMAT      (FD_FORMAT)
-#define FDC_RECAL       (FD_RECALIBRATE)
-#define FDC_SEEK        (FD_SEEK)
-#define FDC_SPECIFY     (FD_SPECIFY)
-#define FDC_RECALIBR    (FD_RECALIBRATE)
-#define FDC_VERSION     (FD_VERSION)
-#define FDC_PERPEND     (FD_PERPENDICULAR)
-#define FDC_DUMPREGS    (FD_DUMPREGS)
-#define FDC_LOCK        (FD_LOCK)
-#define FDC_UNLOCK      (FD_UNLOCK)
-#define FDC_CONFIGURE   (FD_CONFIGURE)
-#define FDC_DRIVE_SPEC  (0x8e)	/* i82078 has this (any others?) */
-#define FDC_PARTID      (0x18)	/* i82078 has this */
-#define FDC_SAVE        (0x2e)	/* i82078 has this (any others?) */
-#define FDC_RESTORE     (0x4e)	/* i82078 has this (any others?) */
-
-#define FDC_STATUS_MASK (STATUS_BUSY | STATUS_DMA | STATUS_DIR | STATUS_READY)
-#define FDC_DATA_READY  (STATUS_READY)
-#define FDC_DATA_OUTPUT (STATUS_DIR)
-#define FDC_DATA_READY_MASK (STATUS_READY | STATUS_DIR)
-#define FDC_DATA_OUT_READY  (STATUS_READY | STATUS_DIR)
-#define FDC_DATA_IN_READY   (STATUS_READY)
-#define FDC_BUSY        (STATUS_BUSY)
-#define FDC_CLK48_BIT   (0x80)
-#define FDC_SEL3V_BIT   (0x40)
-
-#define ST0_INT_MASK    (ST0_INTR)
-#define FDC_INT_NORMAL  (ST0_INTR & 0x00)
-#define FDC_INT_ABNORMAL (ST0_INTR & 0x40)
-#define FDC_INT_INVALID (ST0_INTR & 0x80)
-#define FDC_INT_READYCH (ST0_INTR & 0xC0)
-#define ST0_SEEK_END    (ST0_SE)
-#define ST3_TRACK_0     (ST3_TZ)
-
-#define FDC_RESET_NOT   (0x04)
-#define FDC_DMA_MODE    (0x08)
-#define FDC_MOTOR_0     (0x10)
-#define FDC_MOTOR_1     (0x20)
-
-typedef struct {
-	void (**hook) (void);	/* our wedge into the isr */
-	enum {
-		no_fdc, i8272, i82077, i82077AA, fc10,
-		i82078, i82078_1
-	} type;			/* FDC type */
-	unsigned int irq; /* FDC irq nr */
-	unsigned int dma; /* FDC dma channel nr */
-	__u16 sra;	  /* Status register A (PS/2 only) */
-	__u16 srb;	  /* Status register B (PS/2 only) */
-	__u16 dor;	  /* Digital output register */
-	__u16 tdr;	  /* Tape Drive Register (82077SL-1 &
-			     82078 only) */
-	__u16 msr;	  /* Main Status Register */
-	__u16 dsr;	  /* Datarate Select Register (8207x only) */
-	__u16 fifo;	  /* Data register / Fifo on 8207x */
-	__u16 dir;	  /* Digital Input Register */
-	__u16 ccr;	  /* Configuration Control Register */
-	__u16 dor2;	  /* Alternate dor on MACH-2 controller,
-			     also used with FC-10, meaning unknown */
-} fdc_config_info;
-
-typedef enum {
-	fdc_data_rate_250  = 2,
-	fdc_data_rate_300  = 1,	/* any fdc in default configuration */
-	fdc_data_rate_500  = 0,
-	fdc_data_rate_1000 = 3,
-	fdc_data_rate_2000 = 1,	/* i82078-1: when using Data Rate Table #2 */
-} fdc_data_rate_type;
-
-typedef enum {
-	fdc_idle          = 0,
-	fdc_reading_data  = FDC_READ,
-	fdc_seeking       = FDC_SEEK,
-	fdc_writing_data  = FDC_WRITE,
-	fdc_deleting      = FDC_WRITE_DELETED,
-	fdc_reading_id    = FDC_READID,
-	fdc_recalibrating = FDC_RECAL,
-	fdc_formatting    = FDC_FORMAT,
-	fdc_verifying     = FDC_VERIFY
-} fdc_mode_enum;
-
-typedef enum {
-	waiting = 0,
-	reading,
-	writing,
-	formatting,
-	verifying,
-	deleting,
-	done,
-	error,
-	mmapped,
-} buffer_state_enum;
-
-typedef struct {
-	__u8 *address;
-	volatile buffer_state_enum status;
-	volatile __u8 *ptr;
-	volatile unsigned int bytes;
-	volatile unsigned int segment_id;
-
-	/* bitmap for remainder of segment not yet handled.
-	 * one bit set for each bad sector that must be skipped.
-	 */
-	volatile SectorMap bad_sector_map;
-
-	/* bitmap with bad data blocks in data buffer.
-	 * the errors in this map may be retried.
-	 */
-	volatile SectorMap soft_error_map;
-
-	/* bitmap with bad data blocks in data buffer
-	 * the errors in this map may not be retried.
-	 */
-	volatile SectorMap hard_error_map;
-
-	/* retry counter for soft errors.
-	 */
-	volatile int retry;
-
-	/* sectors to skip on retry ???
-	 */
-	volatile unsigned int skip;
-
-	/* nr of data blocks in data buffer
-	 */
-	volatile unsigned int data_offset;
-
-	/* offset in segment for first sector to be handled.
-	 */
-	volatile unsigned int sector_offset;
-
-	/* size of cluster of good sectors to be handled.
-	 */
-	volatile unsigned int sector_count;
-
-	/* size of remaining part of segment to be handled.
-	 */
-	volatile unsigned int remaining;
-
-	/* points to next segment (contiguous) to be handled,
-	 * or is zero if no read-ahead is allowed.
-	 */
-	volatile unsigned int next_segment;
-
-	/* flag being set if deleted data was read.
-	 */
-	volatile int deleted;
-
-	/* floppy coordinates of first sector in segment */
-	volatile __u8 head;
-	volatile __u8 cyl;
-	volatile __u8 sect;
-
-	/* gap to use when formatting */
-	__u8 gap3;
-	/* flag set when buffer is mmaped */
-	int mmapped;
-} buffer_struct;
-
-/*
- *      fdc-io.c defined public variables
- */
-extern volatile fdc_mode_enum fdc_mode;
-extern int fdc_setup_error;	/* outdated ??? */
-extern wait_queue_head_t ftape_wait_intr;
-extern volatile int ftape_current_cylinder; /* track nr FDC thinks we're on */
-extern volatile __u8 fdc_head;	/* FDC head */
-extern volatile __u8 fdc_cyl;	/* FDC track */
-extern volatile __u8 fdc_sect;	/* FDC sector */
-extern fdc_config_info fdc;	/* FDC hardware configuration */
-
-extern unsigned int ft_fdc_base;
-extern unsigned int ft_fdc_irq;
-extern unsigned int ft_fdc_dma;
-extern unsigned int ft_fdc_threshold;
-extern unsigned int ft_fdc_rate_limit;
-extern int ft_probe_fc10;
-extern int ft_mach2;
-/*
- *      fdc-io.c defined public functions
- */
-extern void fdc_catch_stray_interrupts(int count);
-extern int fdc_ready_wait(unsigned int timeout);
-extern int fdc_command(const __u8 * cmd_data, int cmd_len);
-extern int fdc_result(__u8 * res_data, int res_len);
-extern int fdc_interrupt_wait(unsigned int time);
-extern int fdc_seek(int track);
-extern int fdc_sense_drive_status(int *st3);
-extern void fdc_motor(int motor);
-extern void fdc_reset(void);
-extern void fdc_disable(void);
-extern int fdc_fifo_threshold(__u8 threshold,
-			      int *fifo_state, int *lock_state, int *fifo_thr);
-extern void fdc_wait_calibrate(void);
-extern int fdc_sense_interrupt_status(int *st0, int *current_cylinder);
-extern void fdc_save_drive_specs(void);
-extern void fdc_restore_drive_specs(void);
-extern int fdc_set_data_rate(int rate);
-extern void fdc_set_write_precomp(int precomp);
-extern int fdc_release_irq_and_dma(void);
-extern void fdc_release_regions(void);
-extern int fdc_init(void);
-extern int fdc_setup_read_write(buffer_struct * buff, __u8 operation);
-extern int fdc_setup_formatting(buffer_struct * buff);
-#endif

drivers/char/ftape/lowlevel/fdc-isr.h

-#ifndef _FDC_ISR_H
-#define _FDC_ISR_H
-
-/*
- * Copyright (C) 1993-1996 Bas Laarhoven,
- *           (C) 1996-1997 Claus-Justus Heine.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING.  If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/fdc-isr.h,v $
- * $Revision: 1.2 $
- * $Date: 1997/10/05 19:18:07 $
- *
- *      This file declares the global variables necessary to
- *      synchronize the interrupt service routine (isr) with the
- *      remainder of the QIC-40/80/3010/3020 floppy-tape driver
- *      "ftape" for Linux.
- */
-
-/*
- *      fdc-isr.c defined public variables
- */
-extern volatile int ft_expected_stray_interrupts; /* masks stray interrupts */
-extern volatile int ft_seek_completed;	          /* flag set by isr */
-extern volatile int ft_interrupt_seen;	          /* flag set by isr */
-extern volatile int ft_hide_interrupt;            /* flag set by isr */
-
-/*
- *      fdc-io.c defined public functions
- */
-extern void fdc_isr(void);
-
-/*
- *      A kernel hook that steals one interrupt from the floppy
- *      driver (Should be fixed when the new fdc driver gets ready)
- *      See the linux kernel source files:
- *          drivers/block/floppy.c & drivers/block/blk.h
- *      for the details.
- */
-extern void (*do_floppy) (void);
-
-#endif

drivers/char/ftape/lowlevel/ftape-bsm.h

-#ifndef _FTAPE_BSM_H
-#define _FTAPE_BSM_H
-
-/*
- * Copyright (C) 1994-1996 Bas Laarhoven,
- *           (C) 1996-1997 Claus-Justus Heine.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING.  If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-bsm.h,v $
- * $Revision: 1.2 $
- * $Date: 1997/10/05 19:18:07 $
- *
- *      This file contains definitions for the bad sector map handling
- *      routines for the QIC-117 floppy-tape driver for Linux.
- */
-
-#include <linux/ftape.h>
-#include <linux/ftape-header-segment.h>
-
-#define EMPTY_SEGMENT           (0xffffffff)
-#define FAKE_SEGMENT            (0xfffffffe)
-
-/*  maximum (format code 4) bad sector map size (bytes).
- */
-#define BAD_SECTOR_MAP_SIZE     (29 * SECTOR_SIZE - 256)
-
-/*  format code 4 bad sector entry, ftape uses this
- *  internally for all format codes
- */
-typedef __u32 SectorMap;
-/*  variable and 1100 ft bad sector map entry. These three bytes represent
- *  a single sector address measured from BOT. 
- */
-typedef struct NewSectorMap {          
-	__u8 bytes[3];
-} SectorCount;
-
-
-/*
- *      ftape-bsm.c defined global vars.
- */
-
-/*
- *      ftape-bsm.c defined global functions.
- */
-extern void update_bad_sector_map(__u8 * buffer);
-extern void ftape_extract_bad_sector_map(__u8 * buffer);
-extern SectorMap ftape_get_bad_sector_entry(int segment_id);
-extern __u8 *ftape_find_end_of_bsm_list(__u8 * address);
-extern void ftape_init_bsm(void);
-
-#endif

drivers/char/ftape/lowlevel/ftape-buffer.c

-/*
- *      Copyright (C) 1997 Claus-Justus Heine
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING.  If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-buffer.c,v $
- * $Revision: 1.3 $
- * $Date: 1997/10/16 23:33:11 $
- *
- *  This file contains the allocator/dealloctor for ftape's dynamic dma
- *  buffer.
- */
-
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/mman.h>
-#include <asm/dma.h>
-
-#include <linux/ftape.h>
-#include "../lowlevel/ftape-rw.h"
-#include "../lowlevel/ftape-read.h"
-#include "../lowlevel/ftape-tracing.h"
-#include "../lowlevel/ftape-buffer.h"
-
-/*  DMA'able memory allocation stuff.
- */
-
-static inline void *dmaalloc(size_t size)
-{
-	unsigned long addr;
-
-	if (size == 0) {
-		return NULL;
-	}
-	addr = __get_dma_pages(GFP_KERNEL, get_order(size));
-	if (addr) {
-		struct page *page;
-
-		for (page = virt_to_page(addr); page < virt_to_page(addr+size); page++)
-			SetPageReserved(page);
-	}
-	return (void *)addr;
-}
-
-static inline void dmafree(void *addr, size_t size)
-{
-	if (size > 0) {
-		struct page *page;
-
-		for (page = virt_to_page((unsigned long)addr);
-		     page < virt_to_page((unsigned long)addr+size); page++)
-			ClearPageReserved(page);
-		free_pages((unsigned long) addr, get_order(size));
-	}
-}
-
-static int add_one_buffer(void)
-{
-	TRACE_FUN(ft_t_flow);
-	
-	if (ft_nr_buffers >= FT_MAX_NR_BUFFERS) {
-		TRACE_EXIT -ENOMEM;
-	}
-	ft_buffer[ft_nr_buffers] = kmalloc(sizeof(buffer_struct), GFP_KERNEL);
-	if (ft_buffer[ft_nr_buffers] == NULL) {
-		TRACE_EXIT -ENOMEM;
-	}
-	memset(ft_buffer[ft_nr_buffers], 0, sizeof(buffer_struct));
-	ft_buffer[ft_nr_buffers]->address = dmaalloc(FT_BUFF_SIZE);
-	if (ft_buffer[ft_nr_buffers]->address == NULL) {
-		kfree(ft_buffer[ft_nr_buffers]);
-		ft_buffer[ft_nr_buffers] = NULL;
-		TRACE_EXIT -ENOMEM;
-	}
-	ft_nr_buffers ++;
-	TRACE(ft_t_info, "buffer nr #%d @ %p, dma area @ %p",
-	      ft_nr_buffers,
-	      ft_buffer[ft_nr_buffers-1],
-	      ft_buffer[ft_nr_buffers-1]->address);
-	TRACE_EXIT 0;
-}
-
-static void del_one_buffer(void)
-{
-	TRACE_FUN(ft_t_flow);
-	if (ft_nr_buffers > 0) {
-		TRACE(ft_t_info, "releasing buffer nr #%d @ %p, dma area @ %p",
-		      ft_nr_buffers,
-		      ft_buffer[ft_nr_buffers-1],
-		      ft_buffer[ft_nr_buffers-1]->address);
-		ft_nr_buffers --;
-		dmafree(ft_buffer[ft_nr_buffers]->address, FT_BUFF_SIZE);
-		kfree(ft_buffer[ft_nr_buffers]);
-		ft_buffer[ft_nr_buffers] = NULL;
-	}
-	TRACE_EXIT;
-}
-
-int ftape_set_nr_buffers(int cnt)
-{
-	int delta = cnt - ft_nr_buffers;
-	TRACE_FUN(ft_t_flow);
-
-	if (delta > 0) {
-		while (delta--) {
-			if (add_one_buffer() < 0) {
-				TRACE_EXIT -ENOMEM;
-			}
-		}
-	} else if (delta < 0) {
-		while (delta++) {
-			del_one_buffer();
-		}
-	}
-	ftape_zap_read_buffers();
-	TRACE_EXIT 0;
-}

drivers/char/ftape/lowlevel/ftape-buffer.h

-#ifndef _FTAPE_BUFFER_H
-#define _FTAPE_BUFFER_H
-
-/*
- *      Copyright (C) 1997 Claus-Justus Heine.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING.  If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-buffer.h,v $
- * $Revision: 1.2 $
- * $Date: 1997/10/05 19:18:08 $
- *
- *  This file contains the allocator/dealloctor for ftape's dynamic dma
- *  buffer.
- */
-
-extern int  ftape_set_nr_buffers(int cnt);
-
-#endif

drivers/char/ftape/lowlevel/ftape-calibr.h

-#ifndef _FTAPE_CALIBR_H
-#define _FTAPE_CALIBR_H
-
-/*
- *      Copyright (C) 1993-1996 Bas Laarhoven.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING.  If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-calibr.h,v $
- * $Revision: 1.1 $
- * $Date: 1997/09/19 09:05:26 $
- *
- *      This file contains a gp calibration routine for
- *      hardware dependent timeout functions.
- */
-
-extern void ftape_calibrate(char *name,
-			    void (*fun) (unsigned int),
-			    unsigned int *calibr_count,
-			    unsigned int *calibr_time);
-extern unsigned int ftape_timestamp(void);
-extern unsigned int ftape_timediff(unsigned int t0, unsigned int t1);
-
-#endif /* _FTAPE_CALIBR_H */

drivers/char/ftape/lowlevel/ftape-format.h

-#ifndef _FTAPE_FORMAT_H
-#define _FTAPE_FORMAT_H
-
-/*
- * Copyright (C) 1996-1997 Claus-Justus Heine.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING.  If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-format.h,v $
- * $Revision: 1.2 $
- * $Date: 1997/10/05 19:18:13 $
- *
- *      This file contains the low level definitions for the
- *      formatting support for the QIC-40/80/3010/3020 floppy-tape
- *      driver "ftape" for Linux.
- */
-
-#ifdef __KERNEL__
-extern int ftape_format_track(const unsigned int track, const __u8 gap3);
-extern int ftape_format_status(unsigned int *segment_id);
-extern int ftape_verify_segment(const unsigned int segment_id, SectorMap *bsm);
-#endif /* __KERNEL__ */
-
-#endif

include/linux/Kbuild

@@ -60,8 +60,6 @@ header-y += fadvise.h
 header-y += fd.h
 header-y += fdreg.h
 header-y += fib_rules.h
-header-y += ftape-header-segment.h
-header-y += ftape-vendors.h
 header-y += fuse.h
 header-y += futex.h
 header-y += genetlink.h
@@ -206,7 +204,6 @@ unifdef-y += fcntl.h
 unifdef-y += filter.h
 unifdef-y += flat.h
 unifdef-y += fs.h
-unifdef-y += ftape.h
 unifdef-y += gameport.h
 unifdef-y += generic_serial.h
 unifdef-y += genhd.h
@@ -341,6 +338,5 @@ unifdef-y += wait.h
 unifdef-y += wanrouter.h
 unifdef-y += watchdog.h
 unifdef-y += xfrm.h
-unifdef-y += zftape.h
 
 objhdr-y += version.h