diff options
| -rw-r--r-- | drivers/char/Kconfig | 254 | ||||
| -rw-r--r-- | drivers/tty/Kconfig | 150 | ||||
| -rw-r--r-- | drivers/tty/hvc/Kconfig | 105 |
3 files changed, 257 insertions, 252 deletions
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index 17f9b968b988..9b9ab867f50e 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -4,89 +4,7 @@ menu "Character devices" -config VT - bool "Virtual terminal" if EXPERT - depends on !S390 - select INPUT - default y - ---help--- - If you say Y here, you will get support for terminal devices with - display and keyboard devices. These are called "virtual" because you - can run several virtual terminals (also called virtual consoles) on - one physical terminal. This is rather useful, for example one - virtual terminal can collect system messages and warnings, another - one can be used for a text-mode user session, and a third could run - an X session, all in parallel. Switching between virtual terminals - is done with certain key combinations, usually Alt-<function key>. - - The setterm command ("man setterm") can be used to change the - properties (such as colors or beeping) of a virtual terminal. The - man page console_codes(4) ("man console_codes") contains the special - character sequences that can be used to change those properties - directly. The fonts used on virtual terminals can be changed with - the setfont ("man setfont") command and the key bindings are defined - with the loadkeys ("man loadkeys") command. - - You need at least one virtual terminal device in order to make use - of your keyboard and monitor. Therefore, only people configuring an - embedded system would want to say N here in order to save some - memory; the only way to log into such a system is then via a serial - or network connection. - - If unsure, say Y, or else you won't be able to do much with your new - shiny Linux system :-) - -config CONSOLE_TRANSLATIONS - depends on VT - default y - bool "Enable character translations in console" if EXPERT - ---help--- - This enables support for font mapping and Unicode translation - on virtual consoles. - -config VT_CONSOLE - bool "Support for console on virtual terminal" if EXPERT - depends on VT - default y - ---help--- - The system console is the device which receives all kernel messages - and warnings and which allows logins in single user mode. If you - answer Y here, a virtual terminal (the device used to interact with - a physical terminal) can be used as system console. This is the most - common mode of operations, so you should say Y here unless you want - the kernel messages be output only to a serial port (in which case - you should say Y to "Console on serial port", below). - - If you do say Y here, by default the currently visible virtual - terminal (/dev/tty0) will be used as system console. You can change - that with a kernel command line option such as "console=tty3" which - would use the third virtual terminal as system console. (Try "man - bootparam" or see the documentation of your boot loader (lilo or - loadlin) about how to pass options to the kernel at boot time.) - - If unsure, say Y. - -config HW_CONSOLE - bool - depends on VT && !S390 && !UML - default y - -config VT_HW_CONSOLE_BINDING - bool "Support for binding and unbinding console drivers" - depends on HW_CONSOLE - default n - ---help--- - The virtual terminal is the device that interacts with the physical - terminal through console drivers. On these systems, at least one - console driver is loaded. In other configurations, additional console - drivers may be enabled, such as the framebuffer console. If more than - 1 console driver is enabled, setting this to 'y' will allow you to - select the console driver that will serve as the backend for the - virtual terminals. - - See <file:Documentation/console/console.txt> for more - information. For framebuffer console users, please refer to - <file:Documentation/fb/fbcon.txt>. +source "drivers/tty/Kconfig" config DEVKMEM bool "/dev/kmem virtual device support" @@ -428,71 +346,6 @@ config SGI_MBCS source "drivers/tty/serial/Kconfig" -config UNIX98_PTYS - bool "Unix98 PTY support" if EXPERT - default y - ---help--- - A pseudo terminal (PTY) is a software device consisting of two - halves: a master and a slave. The slave device behaves identical to - a physical terminal; the master device is used by a process to - read data from and write data to the slave, thereby emulating a - terminal. Typical programs for the master side are telnet servers - and xterms. - - Linux has traditionally used the BSD-like names /dev/ptyxx for - masters and /dev/ttyxx for slaves of pseudo terminals. This scheme - has a number of problems. The GNU C library glibc 2.1 and later, - however, supports the Unix98 naming standard: in order to acquire a - pseudo terminal, a process opens /dev/ptmx; the number of the pseudo - terminal is then made available to the process and the pseudo - terminal slave can be accessed as /dev/pts/<number>. What was - traditionally /dev/ttyp2 will then be /dev/pts/2, for example. - - All modern Linux systems use the Unix98 ptys. Say Y unless - you're on an embedded system and want to conserve memory. - -config DEVPTS_MULTIPLE_INSTANCES - bool "Support multiple instances of devpts" - depends on UNIX98_PTYS - default n - ---help--- - Enable support for multiple instances of devpts filesystem. - If you want to have isolated PTY namespaces (eg: in containers), - say Y here. Otherwise, say N. If enabled, each mount of devpts - filesystem with the '-o newinstance' option will create an - independent PTY namespace. - -config LEGACY_PTYS - bool "Legacy (BSD) PTY support" - default y - ---help--- - A pseudo terminal (PTY) is a software device consisting of two - halves: a master and a slave. The slave device behaves identical to - a physical terminal; the master device is used by a process to - read data from and write data to the slave, thereby emulating a - terminal. Typical programs for the master side are telnet servers - and xterms. - - Linux has traditionally used the BSD-like names /dev/ptyxx - for masters and /dev/ttyxx for slaves of pseudo - terminals. This scheme has a number of problems, including - security. This option enables these legacy devices; on most - systems, it is safe to say N. - - -config LEGACY_PTY_COUNT - int "Maximum number of legacy PTY in use" - depends on LEGACY_PTYS - range 0 256 - default "256" - ---help--- - The maximum number of legacy PTYs that can be used at any one time. - The default is 256, and should be more than enough. Embedded - systems may want to reduce this to save memory. - - When not in use, each legacy PTY occupies 12 bytes on 32-bit - architectures and 24 bytes on 64-bit architectures. - config TTY_PRINTK bool "TTY driver to output user messages via printk" depends on EXPERT @@ -612,93 +465,7 @@ config PPDEV If unsure, say N. -config HVC_DRIVER - bool - help - Generic "hypervisor virtual console" infrastructure for various - hypervisors (pSeries, iSeries, Xen, lguest). - It will automatically be selected if one of the back-end console drivers - is selected. - -config HVC_IRQ - bool - -config HVC_CONSOLE - bool "pSeries Hypervisor Virtual Console support" - depends on PPC_PSERIES - select HVC_DRIVER - select HVC_IRQ - help - pSeries machines when partitioned support a hypervisor virtual - console. This driver allows each pSeries partition to have a console - which is accessed via the HMC. - -config HVC_ISERIES - bool "iSeries Hypervisor Virtual Console support" - depends on PPC_ISERIES - default y - select HVC_DRIVER - select HVC_IRQ - select VIOPATH - help - iSeries machines support a hypervisor virtual console. - -config HVC_RTAS - bool "IBM RTAS Console support" - depends on PPC_RTAS - select HVC_DRIVER - help - IBM Console device driver which makes use of RTAS - -config HVC_BEAT - bool "Toshiba's Beat Hypervisor Console support" - depends on PPC_CELLEB - select HVC_DRIVER - help - Toshiba's Cell Reference Set Beat Console device driver - -config HVC_IUCV - bool "z/VM IUCV Hypervisor console support (VM only)" - depends on S390 - select HVC_DRIVER - select IUCV - default y - help - This driver provides a Hypervisor console (HVC) back-end to access - a Linux (console) terminal via a z/VM IUCV communication path. - -config HVC_XEN - bool "Xen Hypervisor Console support" - depends on XEN - select HVC_DRIVER - select HVC_IRQ - default y - help - Xen virtual console device driver - -config HVC_UDBG - bool "udbg based fake hypervisor console" - depends on PPC && EXPERIMENTAL - select HVC_DRIVER - default n - -config HVC_DCC - bool "ARM JTAG DCC console" - depends on ARM - select HVC_DRIVER - help - This console uses the JTAG DCC on ARM to create a console under the HVC - driver. This console is used through a JTAG only on ARM. If you don't have - a JTAG then you probably don't want this option. - -config HVC_BFIN_JTAG - bool "Blackfin JTAG console" - depends on BLACKFIN - select HVC_DRIVER - help - This console uses the Blackfin JTAG to create a console under the - the HVC driver. If you don't have JTAG, then you probably don't - want this option. +source "drivers/tty/hvc/Kconfig" config VIRTIO_CONSOLE tristate "Virtio console" @@ -716,23 +483,6 @@ config VIRTIO_CONSOLE the port which can be used by udev scripts to create a symlink to the device. -config HVCS - tristate "IBM Hypervisor Virtual Console Server support" - depends on PPC_PSERIES && HVC_CONSOLE - help - Partitionable IBM Power5 ppc64 machines allow hosting of - firmware virtual consoles from one Linux partition by - another Linux partition. This driver allows console data - from Linux partitions to be accessed through TTY device - interfaces in the device tree of a Linux partition running - this driver. - - To compile this driver as a module, choose M here: the - module will be called hvcs. Additionally, this module - will depend on arch specific APIs exported from hvcserver.ko - which will also be compiled when this driver is built as a - module. - config IBM_BSR tristate "IBM POWER Barrier Synchronization Register support" depends on PPC_PSERIES diff --git a/drivers/tty/Kconfig b/drivers/tty/Kconfig new file mode 100644 index 000000000000..9cfbdb318ed9 --- /dev/null +++ b/drivers/tty/Kconfig @@ -0,0 +1,150 @@ +config VT + bool "Virtual terminal" if EXPERT + depends on !S390 + select INPUT + default y + ---help--- + If you say Y here, you will get support for terminal devices with + display and keyboard devices. These are called "virtual" because you + can run several virtual terminals (also called virtual consoles) on + one physical terminal. This is rather useful, for example one + virtual terminal can collect system messages and warnings, another + one can be used for a text-mode user session, and a third could run + an X session, all in parallel. Switching between virtual terminals + is done with certain key combinations, usually Alt-<function key>. + + The setterm command ("man setterm") can be used to change the + properties (such as colors or beeping) of a virtual terminal. The + man page console_codes(4) ("man console_codes") contains the special + character sequences that can be used to change those properties + directly. The fonts used on virtual terminals can be changed with + the setfont ("man setfont") command and the key bindings are defined + with the loadkeys ("man loadkeys") command. + + You need at least one virtual terminal device in order to make use + of your keyboard and monitor. Therefore, only people configuring an + embedded system would want to say N here in order to save some + memory; the only way to log into such a system is then via a serial + or network connection. + + If unsure, say Y, or else you won't be able to do much with your new + shiny Linux system :-) + +config CONSOLE_TRANSLATIONS + depends on VT + default y + bool "Enable character translations in console" if EXPERT + ---help--- + This enables support for font mapping and Unicode translation + on virtual consoles. + +config VT_CONSOLE + bool "Support for console on virtual terminal" if EXPERT + depends on VT + default y + ---help--- + The system console is the device which receives all kernel messages + and warnings and which allows logins in single user mode. If you + answer Y here, a virtual terminal (the device used to interact with + a physical terminal) can be used as system console. This is the most + common mode of operations, so you should say Y here unless you want + the kernel messages be output only to a serial port (in which case + you should say Y to "Console on serial port", below). + + If you do say Y here, by default the currently visible virtual + terminal (/dev/tty0) will be used as system console. You can change + that with a kernel command line option such as "console=tty3" which + would use the third virtual terminal as system console. (Try "man + bootparam" or see the documentation of your boot loader (lilo or + loadlin) about how to pass options to the kernel at boot time.) + + If unsure, say Y. + +config HW_CONSOLE + bool + depends on VT && !S390 && !UML + default y + +config VT_HW_CONSOLE_BINDING + bool "Support for binding and unbinding console drivers" + depends on HW_CONSOLE + default n + ---help--- + The virtual terminal is the device that interacts with the physical + terminal through console drivers. On these systems, at least one + console driver is loaded. In other configurations, additional console + drivers may be enabled, such as the framebuffer console. If more than + 1 console driver is enabled, setting this to 'y' will allow you to + select the console driver that will serve as the backend for the + virtual terminals. + + See <file:Documentation/console/console.txt> for more + information. For framebuffer console users, please refer to + <file:Documentation/fb/fbcon.txt>. + +config UNIX98_PTYS + bool "Unix98 PTY support" if EXPERT + default y + ---help--- + A pseudo terminal (PTY) is a software device consisting of two + halves: a master and a slave. The slave device behaves identical to + a physical terminal; the master device is used by a process to + read data from and write data to the slave, thereby emulating a + terminal. Typical programs for the master side are telnet servers + and xterms. + + Linux has traditionally used the BSD-like names /dev/ptyxx for + masters and /dev/ttyxx for slaves of pseudo terminals. This scheme + has a number of problems. The GNU C library glibc 2.1 and later, + however, supports the Unix98 naming standard: in order to acquire a + pseudo terminal, a process opens /dev/ptmx; the number of the pseudo + terminal is then made available to the process and the pseudo + terminal slave can be accessed as /dev/pts/<number>. What was + traditionally /dev/ttyp2 will then be /dev/pts/2, for example. + + All modern Linux systems use the Unix98 ptys. Say Y unless + you're on an embedded system and want to conserve memory. + +config DEVPTS_MULTIPLE_INSTANCES + bool "Support multiple instances of devpts" + depends on UNIX98_PTYS + default n + ---help--- + Enable support for multiple instances of devpts filesystem. + If you want to have isolated PTY namespaces (eg: in containers), + say Y here. Otherwise, say N. If enabled, each mount of devpts + filesystem with the '-o newinstance' option will create an + independent PTY namespace. + +config LEGACY_PTYS + bool "Legacy (BSD) PTY support" + default y + ---help--- + A pseudo terminal (PTY) is a software device consisting of two + halves: a master and a slave. The slave device behaves identical to + a physical terminal; the master device is used by a process to + read data from and write data to the slave, thereby emulating a + terminal. Typical programs for the master side are telnet servers + and xterms. + + Linux has traditionally used the BSD-like names /dev/ptyxx + for masters and /dev/ttyxx for slaves of pseudo + terminals. This scheme has a number of problems, including + security. This option enables these legacy devices; on most + systems, it is safe to say N. + + +config LEGACY_PTY_COUNT + int "Maximum number of legacy PTY in use" + depends on LEGACY_PTYS + range 0 256 + default "256" + ---help--- + The maximum number of legacy PTYs that can be used at any one time. + The default is 256, and should be more than enough. Embedded + systems may want to reduce this to save memory. + + When not in use, each legacy PTY occupies 12 bytes on 32-bit + architectures and 24 bytes on 64-bit architectures. + + diff --git a/drivers/tty/hvc/Kconfig b/drivers/tty/hvc/Kconfig new file mode 100644 index 000000000000..6f2c9809f1fb --- /dev/null +++ b/drivers/tty/hvc/Kconfig @@ -0,0 +1,105 @@ +config HVC_DRIVER + bool + help + Generic "hypervisor virtual console" infrastructure for various + hypervisors (pSeries, iSeries, Xen, lguest). + It will automatically be selected if one of the back-end console drivers + is selected. + +config HVC_IRQ + bool + +config HVC_CONSOLE + bool "pSeries Hypervisor Virtual Console support" + depends on PPC_PSERIES + select HVC_DRIVER + select HVC_IRQ + help + pSeries machines when partitioned support a hypervisor virtual + console. This driver allows each pSeries partition to have a console + which is accessed via the HMC. + +config HVC_ISERIES + bool "iSeries Hypervisor Virtual Console support" + depends on PPC_ISERIES + default y + select HVC_DRIVER + select HVC_IRQ + select VIOPATH + help + iSeries machines support a hypervisor virtual console. + +config HVC_RTAS + bool "IBM RTAS Console support" + depends on PPC_RTAS + select HVC_DRIVER + help + IBM Console device driver which makes use of RTAS + +config HVC_BEAT + bool "Toshiba's Beat Hypervisor Console support" + depends on PPC_CELLEB + select HVC_DRIVER + help + Toshiba's Cell Reference Set Beat Console device driver + +config HVC_IUCV + bool "z/VM IUCV Hypervisor console support (VM only)" + depends on S390 + select HVC_DRIVER + select IUCV + default y + help + This driver provides a Hypervisor console (HVC) back-end to access + a Linux (console) terminal via a z/VM IUCV communication path. + +config HVC_XEN + bool "Xen Hypervisor Console support" + depends on XEN + select HVC_DRIVER + select HVC_IRQ + default y + help + Xen virtual console device driver + +config HVC_UDBG + bool "udbg based fake hypervisor console" + depends on PPC && EXPERIMENTAL + select HVC_DRIVER + default n + +config HVC_DCC + bool "ARM JTAG DCC console" + depends on ARM + select HVC_DRIVER + help + This console uses the JTAG DCC on ARM to create a console under the HVC + driver. This console is used through a JTAG only on ARM. If you don't have + a JTAG then you probably don't want this option. + +config HVC_BFIN_JTAG + bool "Blackfin JTAG console" + depends on BLACKFIN + select HVC_DRIVER + help + This console uses the Blackfin JTAG to create a console under the + the HVC driver. If you don't have JTAG, then you probably don't + want this option. + +config HVCS + tristate "IBM Hypervisor Virtual Console Server support" + depends on PPC_PSERIES && HVC_CONSOLE + help + Partitionable IBM Power5 ppc64 machines allow hosting of + firmware virtual consoles from one Linux partition by + another Linux partition. This driver allows console data + from Linux partitions to be accessed through TTY device + interfaces in the device tree of a Linux partition running + this driver. + + To compile this driver as a module, choose M here: the + module will be called hvcs. Additionally, this module + will depend on arch specific APIs exported from hvcserver.ko + which will also be compiled when this driver is built as a + module. + |