# SPDX-License-Identifier: GPL-2.0
comment "S/390 character device drivers"
	depends on S390

config TN3270
	def_tristate y
	prompt "Support for locally attached 3270 terminals"
	depends on CCW && TTY
	help
	  Include support for IBM 3270 terminals.

config TN3270_FS
	def_tristate m
	prompt "Support for fullscreen applications on 3270 terminals"
	depends on TN3270
	help
	  Include support for fullscreen applications on an IBM 3270 terminal.

config TN3270_CONSOLE
	def_bool y
	prompt "Support for console on 3270 terminal"
	depends on TN3270=y
	help
	  Include support for using an IBM 3270 terminal as a Linux system
	  console.  Available only if 3270 support is compiled in statically.

config TN3215
	def_bool y
	prompt "Support for 3215 line mode terminal"
	depends on CCW && TTY
	help
	  Include support for IBM 3215 line-mode terminals.

config TN3215_CONSOLE
	def_bool y
	prompt "Support for console on 3215 line mode terminal"
	depends on TN3215
	help
	  Include support for using an IBM 3215 line-mode terminal as a
	  Linux system console.

config CCW_CONSOLE
	def_bool y if TN3215_CONSOLE || TN3270_CONSOLE

config SCLP_TTY
	def_bool y
	prompt "Support for SCLP line mode terminal"
	depends on S390 && TTY
	help
	  Include support for IBM SCLP line-mode terminals.

config SCLP_CONSOLE
	def_bool y
	prompt "Support for console on SCLP line mode terminal"
	depends on SCLP_TTY
	help
	  Include support for using an IBM HWC line-mode terminal as the Linux
	  system console.

config SCLP_VT220_TTY
	def_bool y
	prompt "Support for SCLP VT220-compatible terminal"
	depends on S390 && TTY
	help
	  Include support for an IBM SCLP VT220-compatible terminal.

config SCLP_VT220_CONSOLE
	def_bool y
	prompt "Support for console on SCLP VT220-compatible terminal"
	depends on SCLP_VT220_TTY
	help
	  Include support for using an IBM SCLP VT220-compatible terminal as a
	  Linux system console.

config HMC_DRV
	def_tristate m
	prompt "Support for file transfers from HMC drive CD/DVD-ROM"
	depends on S390
	select CRC16
	help
	  This option enables support for file transfers from a Hardware
	  Management Console (HMC) drive CD/DVD-ROM. It is available as a
	  module, called 'hmcdrv', and also as kernel built-in. There is one
	  optional parameter for this module: cachesize=N, which modifies the
	  transfer cache size from its default value 0.5MB to N bytes. If N
	  is zero, then no caching is performed.

config SCLP_OFB
	def_bool n
	prompt "Support for Open-for-Business SCLP Event"
	depends on S390
	help
	  This option enables the Open-for-Business interface to the s390
	  Service Element.

config S390_UV_UAPI
	def_tristate m
	prompt "Ultravisor userspace API"
	depends on S390
	help
	  Selecting exposes parts of the UV interface to userspace
	  by providing a misc character device at /dev/uv.
	  Using IOCTLs one can interact with the UV.
	  The device is only available if the Ultravisor
	  Facility (158) is present.

config S390_TAPE
	def_tristate m
	prompt "Support for 3490E tape on VTS"
	depends on CCW
	help
	  Select this option if you want to access channel-attached IBM 3490E
	  tape devices on VTS, such as IBM TS7700.
	  This option is also available as a module.
	  It is safe to say "Y" here.

config VMLOGRDR
	def_tristate m
	prompt "Support for the z/VM recording system services (VM only)"
	depends on IUCV
	help
	  Select this option if you want to be able to receive records collected
	  by the z/VM recording system services, eg. from *LOGREC, *ACCOUNT or
	  *SYMPTOM.
	  This driver depends on the IUCV support driver.

config VMCP
	def_bool y
	prompt "Support for the z/VM CP interface"
	depends on S390
	select CMA
	help
	  Select this option if you want to be able to interact with the control
	  program on z/VM

config VMCP_CMA_SIZE
	int "Memory in MiB reserved for z/VM CP interface"
	default "4"
	depends on VMCP
	help
	  Specify the default amount of memory in MiB reserved for the z/VM CP
	  interface. If needed this memory is used for large contiguous memory
	  allocations. The default can be changed with the kernel command line
	  parameter "vmcp_cma".

config MONREADER
	def_tristate m
	prompt "API for reading z/VM monitor service records"
	depends on IUCV
	help
	  Character device driver for reading z/VM monitor service records

config MONWRITER
	def_tristate m
	prompt "API for writing z/VM monitor service records"
	depends on S390
	help
	  Character device driver for writing z/VM monitor service records

config S390_VMUR
	def_tristate m
	prompt "z/VM unit record device driver"
	depends on S390
	help
	  Character device driver for z/VM reader, puncher and printer.