[linux-2.6-block.git] / drivers / auxdisplay / Kconfig

# SPDX-License-Identifier: GPL-2.0
#
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
#
# Auxiliary display drivers configuration.
#

menuconfig AUXDISPLAY
	bool "Auxiliary Display support"
	---help---
	  Say Y here to get to see options for auxiliary display drivers.
	  This option alone does not add any kernel code.

	  If you say N, all options in this submenu will be skipped and disabled.

config CHARLCD
	tristate "Character LCD core support" if COMPILE_TEST

if AUXDISPLAY

config HD44780
	tristate "HD44780 Character LCD support"
	depends on GPIOLIB || COMPILE_TEST
	select CHARLCD
	---help---
	  Enable support for Character LCDs using a HD44780 controller.
	  The LCD is accessible through the /dev/lcd char device (10, 156).
	  This code can either be compiled as a module, or linked into the
	  kernel and started at boot.
	  If you don't understand what all this is about, say N.

config KS0108
	tristate "KS0108 LCD Controller"
	depends on PARPORT_PC
	default n
	---help---
	  If you have a LCD controlled by one or more KS0108
	  controllers, say Y. You will need also another more specific
	  driver for your LCD.

	  Depends on Parallel Port support. If you say Y at
	  parport, you will be able to compile this as a module (M)
	  and built-in as well (Y).

	  To compile this as a module, choose M here:
	  the module will be called ks0108.

	  If unsure, say N.

config KS0108_PORT
	hex "Parallel port where the LCD is connected"
	depends on KS0108
	default 0x378
	---help---
	  The address of the parallel port where the LCD is connected.

	  The first  standard parallel port address is 0x378.
	  The second standard parallel port address is 0x278.
	  The third  standard parallel port address is 0x3BC.

	  You can specify a different address if you need.

	  If you don't know what I'm talking about, load the parport module,
	  and execute "dmesg" or "cat /proc/ioports". You can see there how
	  many parallel ports are present and which address each one has.

	  Usually you only need to use 0x378.

	  If you compile this as a module, you can still override this
	  using the module parameters.

config KS0108_DELAY
	int "Delay between each control writing (microseconds)"
	depends on KS0108
	default "2"
	---help---
	  Amount of time the ks0108 should wait between each control write
	  to the parallel port.

	  If your LCD seems to miss random writings, increment this.

	  If you don't know what I'm talking about, ignore it.

	  If you compile this as a module, you can still override this
	  value using the module parameters.

config CFAG12864B
	tristate "CFAG12864B LCD"
	depends on X86
	depends on FB
	depends on KS0108
	select FB_SYS_FILLRECT
	select FB_SYS_COPYAREA
	select FB_SYS_IMAGEBLIT
	select FB_SYS_FOPS
	default n
	---help---
	  If you have a Crystalfontz 128x64 2-color LCD, cfag12864b Series,
	  say Y. You also need the ks0108 LCD Controller driver.

	  For help about how to wire your LCD to the parallel port,
	  check Documentation/auxdisplay/cfag12864b

	  Depends on the x86 arch and the framebuffer support.

	  The LCD framebuffer driver can be attached to a console.
	  It will work fine. However, you can't attach it to the fbdev driver
	  of the xorg server.

	  To compile this as a module, choose M here:
	  the modules will be called cfag12864b and cfag12864bfb.

	  If unsure, say N.

config CFAG12864B_RATE
       int "Refresh rate (hertz)"
	depends on CFAG12864B
	default "20"
	---help---
	  Refresh rate of the LCD.

	  As the LCD is not memory mapped, the driver has to make the work by
	  software. This means you should be careful setting this value higher.
	  If your CPUs are really slow or you feel the system is slowed down,
	  decrease the value.

	  Be careful modifying this value to a very high value:
	  You can freeze the computer, or the LCD maybe can't draw as fast as you
	  are requesting.

	  If you don't know what I'm talking about, ignore it.

	  If you compile this as a module, you can still override this
	  value using the module parameters.

config IMG_ASCII_LCD
	tristate "Imagination Technologies ASCII LCD Display"
	depends on HAS_IOMEM
	default y if MIPS_MALTA || MIPS_SEAD3
	select SYSCON
	help
	  Enable this to support the simple ASCII LCD displays found on
	  development boards such as the MIPS Boston, MIPS Malta & MIPS SEAD3
	  from Imagination Technologies.

config HT16K33
	tristate "Holtek Ht16K33 LED controller with keyscan"
	depends on FB && OF && I2C && INPUT
	select FB_SYS_FOPS
	select FB_SYS_FILLRECT
	select FB_SYS_COPYAREA
	select FB_SYS_IMAGEBLIT
	select INPUT_MATRIXKMAP
	select FB_BACKLIGHT
	help
	  Say yes here to add support for Holtek HT16K33, RAM mapping 16*8
	  LED controller driver with keyscan.

endif # AUXDISPLAY

config ARM_CHARLCD
	bool "ARM Ltd. Character LCD Driver"
	depends on PLAT_VERSATILE
	help
	  This is a driver for the character LCD found on the ARM Ltd.
	  Versatile and RealView Platform Baseboards. It doesn't do
	  very much more than display the text "ARM Linux" on the first
	  line and the Linux version on the second line, but that's
	  still useful.

config PANEL
	tristate "Parallel port LCD/Keypad Panel support"
	depends on PARPORT
	select CHARLCD
	---help---
	  Say Y here if you have an HD44780 or KS-0074 LCD connected to your
	  parallel port. This driver also features 4 and 6-key keypads. The LCD
	  is accessible through the /dev/lcd char device (10, 156), and the
	  keypad through /dev/keypad (10, 185). This code can either be
	  compiled as a module, or linked into the kernel and started at boot.
	  If you don't understand what all this is about, say N.

if PANEL

config PANEL_PARPORT
	int "Default parallel port number (0=LPT1)"
	range 0 255
	default "0"
	---help---
	  This is the index of the parallel port the panel is connected to. One
	  driver instance only supports one parallel port, so if your keypad
	  and LCD are connected to two separate ports, you have to start two
	  modules with different arguments. Numbering starts with '0' for LPT1,
	  and so on.

config PANEL_PROFILE
	int "Default panel profile (0-5, 0=custom)"
	range 0 5
	default "5"
	---help---
	  To ease configuration, the driver supports different configuration
	  profiles for past and recent wirings. These profiles can also be
	  used to define an approximative configuration, completed by a few
	  other options. Here are the profiles :

	    0 = custom (see further)
	    1 = 2x16 parallel LCD, old keypad
	    2 = 2x16 serial LCD (KS-0074), new keypad
	    3 = 2x16 parallel LCD (Hantronix), no keypad
	    4 = 2x16 parallel LCD (Nexcom NSA1045) with Nexcom's keypad
	    5 = 2x40 parallel LCD (old one), with old keypad

	  Custom configurations allow you to define how your display is
	  wired to the parallel port, and how it works. This is only intended
	  for experts.

config PANEL_KEYPAD
	depends on PANEL_PROFILE="0"
	int "Keypad type (0=none, 1=old 6 keys, 2=new 6 keys, 3=Nexcom 4 keys)"
	range 0 3
	default 0
	---help---
	  This enables and configures a keypad connected to the parallel port.
	  The keys will be read from character device 10,185. Valid values are :

	    0 : do not enable this driver
	    1 : old 6 keys keypad
	    2 : new 6 keys keypad, as used on the server at www.ant-computing.com
	    3 : Nexcom NSA1045's 4 keys keypad

	  New profiles can be described in the driver source. The driver also
	  supports simultaneous keys pressed when the keypad supports them.

config PANEL_LCD
	depends on PANEL_PROFILE="0"
	int "LCD type (0=none, 1=custom, 2=old //, 3=ks0074, 4=hantronix, 5=Nexcom)"
	range 0 5
	default 0
	---help---
	   This enables and configures an LCD connected to the parallel port.
	   The driver includes an interpreter for escape codes starting with
	   '\e[L' which are specific to the LCD, and a few ANSI codes. The
	   driver will be registered as character device 10,156, usually
	   under the name '/dev/lcd'. There are a total of 6 supported types :

	     0 : do not enable the driver
	     1 : custom configuration and wiring (see further)
	     2 : 2x16 & 2x40 parallel LCD (old wiring)
	     3 : 2x16 serial LCD (KS-0074 based)
	     4 : 2x16 parallel LCD (Hantronix wiring)
	     5 : 2x16 parallel LCD (Nexcom wiring)

	   When type '1' is specified, other options will appear to configure
	   more precise aspects (wiring, dimensions, protocol, ...). Please note
	   that those values changed from the 2.4 driver for better consistency.

config PANEL_LCD_HEIGHT
	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
	int "Number of lines on the LCD (1-2)"
	range 1 2
	default 2
	---help---
	  This is the number of visible character lines on the LCD in custom profile.
	  It can either be 1 or 2.

config PANEL_LCD_WIDTH
	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
	int "Number of characters per line on the LCD (1-40)"
	range 1 40
	default 40
	---help---
	  This is the number of characters per line on the LCD in custom profile.
	  Common values are 16,20,24,40.

config PANEL_LCD_BWIDTH
	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
	int "Internal LCD line width (1-40, 40 by default)"
	range 1 40
	default 40
	---help---
	  Most LCDs use a standard controller which supports hardware lines of 40
	  characters, although sometimes only 16, 20 or 24 of them are really wired
	  to the terminal. This results in some non-visible but addressable characters,
	  and is the case for most parallel LCDs. Other LCDs, and some serial ones,
	  however, use the same line width internally as what is visible. The KS0074
	  for example, uses 16 characters per line for 16 visible characters per line.

	  This option lets you configure the value used by your LCD in 'custom' profile.
	  If you don't know, put '40' here.

config PANEL_LCD_HWIDTH
	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
	int "Hardware LCD line width (1-64, 64 by default)"
	range 1 64
	default 64
	---help---
	  Most LCDs use a single address bit to differentiate line 0 and line 1. Since
	  some of them need to be able to address 40 chars with the lower bits, they
	  often use the immediately superior power of 2, which is 64, to address the
	  next line.

	  If you don't know what your LCD uses, in doubt let 16 here for a 2x16, and
	  64 here for a 2x40.

config PANEL_LCD_CHARSET
	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
	int "LCD character set (0=normal, 1=KS0074)"
	range 0 1
	default 0
	---help---
	  Some controllers such as the KS0074 use a somewhat strange character set
	  where many symbols are at unusual places. The driver knows how to map
	  'standard' ASCII characters to the character sets used by these controllers.
	  Valid values are :

	     0 : normal (untranslated) character set
	     1 : KS0074 character set

	  If you don't know, use the normal one (0).

config PANEL_LCD_PROTO
	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
	int "LCD communication mode (0=parallel 8 bits, 1=serial)"
	range 0 1
	default 0
	---help---
	  This driver now supports any serial or parallel LCD wired to a parallel
	  port. But before assigning signals, the driver needs to know if it will
	  be driving a serial LCD or a parallel one. Serial LCDs only use 2 wires
	  (SDA/SCL), while parallel ones use 2 or 3 wires for the control signals
	  (E, RS, sometimes RW), and 4 or 8 for the data. Use 0 here for a 8 bits
	  parallel LCD, and 1 for a serial LCD.

config PANEL_LCD_PIN_E
	depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO="0"
        int "Parallel port pin number & polarity connected to the LCD E signal (-17...17) "
	range -17 17
	default 14
	---help---
	  This describes the number of the parallel port pin to which the LCD 'E'
	  signal has been connected. It can be :

	          0 : no connection (eg: connected to ground)
	      1..17 : directly connected to any of these pins on the DB25 plug
	    -1..-17 : connected to the same pin through an inverter (eg: transistor).

	  Default for the 'E' pin in custom profile is '14' (AUTOFEED).

config PANEL_LCD_PIN_RS
	depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO="0"
        int "Parallel port pin number & polarity connected to the LCD RS signal (-17...17) "
	range -17 17
	default 17
	---help---
	  This describes the number of the parallel port pin to which the LCD 'RS'
	  signal has been connected. It can be :

	          0 : no connection (eg: connected to ground)
	      1..17 : directly connected to any of these pins on the DB25 plug
	    -1..-17 : connected to the same pin through an inverter (eg: transistor).

	  Default for the 'RS' pin in custom profile is '17' (SELECT IN).

config PANEL_LCD_PIN_RW
	depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO="0"
        int "Parallel port pin number & polarity connected to the LCD RW signal (-17...17) "
	range -17 17
	default 16
	---help---
	  This describes the number of the parallel port pin to which the LCD 'RW'
	  signal has been connected. It can be :

	          0 : no connection (eg: connected to ground)
	      1..17 : directly connected to any of these pins on the DB25 plug
	    -1..-17 : connected to the same pin through an inverter (eg: transistor).

	  Default for the 'RW' pin in custom profile is '16' (INIT).

config PANEL_LCD_PIN_SCL
	depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO!="0"
        int "Parallel port pin number & polarity connected to the LCD SCL signal (-17...17) "
	range -17 17
	default 1
	---help---
	  This describes the number of the parallel port pin to which the serial
	  LCD 'SCL' signal has been connected. It can be :

	          0 : no connection (eg: connected to ground)
	      1..17 : directly connected to any of these pins on the DB25 plug
	    -1..-17 : connected to the same pin through an inverter (eg: transistor).

	  Default for the 'SCL' pin in custom profile is '1' (STROBE).

config PANEL_LCD_PIN_SDA
	depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO!="0"
        int "Parallel port pin number & polarity connected to the LCD SDA signal (-17...17) "
	range -17 17
	default 2
	---help---
	  This describes the number of the parallel port pin to which the serial
	  LCD 'SDA' signal has been connected. It can be :

	          0 : no connection (eg: connected to ground)
	      1..17 : directly connected to any of these pins on the DB25 plug
	    -1..-17 : connected to the same pin through an inverter (eg: transistor).

	  Default for the 'SDA' pin in custom profile is '2' (D0).

config PANEL_LCD_PIN_BL
	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
        int "Parallel port pin number & polarity connected to the LCD backlight signal (-17...17) "
	range -17 17
	default 0
	---help---
	  This describes the number of the parallel port pin to which the LCD 'BL' signal
          has been connected. It can be :

	          0 : no connection (eg: connected to ground)
	      1..17 : directly connected to any of these pins on the DB25 plug
	    -1..-17 : connected to the same pin through an inverter (eg: transistor).

	  Default for the 'BL' pin in custom profile is '0' (uncontrolled).

config PANEL_CHANGE_MESSAGE
	bool "Change LCD initialization message ?"
	default "n"
	---help---
	  This allows you to replace the boot message indicating the kernel version
	  and the driver version with a custom message. This is useful on appliances
	  where a simple 'Starting system' message can be enough to stop a customer
	  from worrying.

	  If you say 'Y' here, you'll be able to choose a message yourself. Otherwise,
	  say 'N' and keep the default message with the version.

config PANEL_BOOT_MESSAGE
	depends on PANEL_CHANGE_MESSAGE="y"
	string "New initialization message"
	default ""
	---help---
	  This allows you to replace the boot message indicating the kernel version
	  and the driver version with a custom message. This is useful on appliances
	  where a simple 'Starting system' message can be enough to stop a customer
	  from worrying.

	  An empty message will only clear the display at driver init time. Any other
	  printf()-formatted message is valid with newline and escape codes.

endif # PANEL
Commit	Line	Data
b2441318	1	# SPDX-License-Identifier: GPL-2.0
70e84049 MOS	2	#
	3	# For a description of the syntax of this configuration file,
	4	# see Documentation/kbuild/kconfig-language.txt.
	5	#
	6	# Auxiliary display drivers configuration.
	7	#
	8
f5920969	9	menuconfig AUXDISPLAY
f5920969	10	bool "Auxiliary Display support"
06bfb7eb JE	11	---help---
	12	Say Y here to get to see options for auxiliary display drivers.
	13	This option alone does not add any kernel code.
	14
	15	If you say N, all options in this submenu will be skipped and disabled.
f5920969	16
39f8ea46 GU	17	config CHARLCD
	18	tristate "Character LCD core support" if COMPILE_TEST
	19
c0aa24ba	20	if AUXDISPLAY
70e84049	21
d47d8836 GU	22	config HD44780
	23	tristate "HD44780 Character LCD support"
	24	depends on GPIOLIB \|\| COMPILE_TEST
	25	select CHARLCD
	26	---help---
	27	Enable support for Character LCDs using a HD44780 controller.
	28	The LCD is accessible through the /dev/lcd char device (10, 156).
	29	This code can either be compiled as a module, or linked into the
	30	kernel and started at boot.
	31	If you don't understand what all this is about, say N.
	32
70e84049 MOS	33	config KS0108
	34	tristate "KS0108 LCD Controller"
	35	depends on PARPORT_PC
	36	default n
	37	---help---
	38	If you have a LCD controlled by one or more KS0108
	39	controllers, say Y. You will need also another more specific
	40	driver for your LCD.
	41
	42	Depends on Parallel Port support. If you say Y at
	43	parport, you will be able to compile this as a module (M)
	44	and built-in as well (Y).
	45
	46	To compile this as a module, choose M here:
	47	the module will be called ks0108.
	48
	49	If unsure, say N.
	50
	51	config KS0108_PORT
	52	hex "Parallel port where the LCD is connected"
	53	depends on KS0108
	54	default 0x378
	55	---help---
	56	The address of the parallel port where the LCD is connected.
	57
	58	The first standard parallel port address is 0x378.
	59	The second standard parallel port address is 0x278.
	60	The third standard parallel port address is 0x3BC.
	61
	62	You can specify a different address if you need.
	63
	64	If you don't know what I'm talking about, load the parport module,
	65	and execute "dmesg" or "cat /proc/ioports". You can see there how
	66	many parallel ports are present and which address each one has.
	67
	68	Usually you only need to use 0x378.
	69
	70	If you compile this as a module, you can still override this
	71	using the module parameters.
	72
	73	config KS0108_DELAY
	74	int "Delay between each control writing (microseconds)"
	75	depends on KS0108
	76	default "2"
	77	---help---
	78	Amount of time the ks0108 should wait between each control write
	79	to the parallel port.
	80
450c622e	81	If your LCD seems to miss random writings, increment this.
70e84049 MOS	82
	83	If you don't know what I'm talking about, ignore it.
	84
	85	If you compile this as a module, you can still override this
	86	value using the module parameters.
	87
	88	config CFAG12864B
	89	tristate "CFAG12864B LCD"
	90	depends on X86
	91	depends on FB
	92	depends on KS0108
bfeeffbb AO	93	select FB_SYS_FILLRECT
	94	select FB_SYS_COPYAREA
	95	select FB_SYS_IMAGEBLIT
	96	select FB_SYS_FOPS
70e84049 MOS	97	default n
	98	---help---
	99	If you have a Crystalfontz 128x64 2-color LCD, cfag12864b Series,
	100	say Y. You also need the ks0108 LCD Controller driver.
	101
	102	For help about how to wire your LCD to the parallel port,
	103	check Documentation/auxdisplay/cfag12864b
	104
	105	Depends on the x86 arch and the framebuffer support.
	106
	107	The LCD framebuffer driver can be attached to a console.
	108	It will work fine. However, you can't attach it to the fbdev driver
	109	of the xorg server.
	110
	111	To compile this as a module, choose M here:
	112	the modules will be called cfag12864b and cfag12864bfb.
	113
	114	If unsure, say N.
	115
	116	config CFAG12864B_RATE
	117	int "Refresh rate (hertz)"
	118	depends on CFAG12864B
	119	default "20"
	120	---help---
	121	Refresh rate of the LCD.
	122
	123	As the LCD is not memory mapped, the driver has to make the work by
	124	software. This means you should be careful setting this value higher.
	125	If your CPUs are really slow or you feel the system is slowed down,
	126	decrease the value.
	127
	128	Be careful modifying this value to a very high value:
	129	You can freeze the computer, or the LCD maybe can't draw as fast as you
	130	are requesting.
	131
	132	If you don't know what I'm talking about, ignore it.
	133
	134	If you compile this as a module, you can still override this
	135	value using the module parameters.
f5920969	136
0cad855f PB	137	config IMG_ASCII_LCD
0cad855f PB	138	tristate "Imagination Technologies ASCII LCD Display"
141cbfba	139	depends on HAS_IOMEM
0cad855f PB	140	default y if MIPS_MALTA \|\| MIPS_SEAD3
	141	select SYSCON
	142	help
	143	Enable this to support the simple ASCII LCD displays found on
	144	development boards such as the MIPS Boston, MIPS Malta & MIPS SEAD3
	145	from Imagination Technologies.
	146
8992da44 RG	147	config HT16K33
	148	tristate "Holtek Ht16K33 LED controller with keyscan"
	149	depends on FB && OF && I2C && INPUT
31114fa9	150	select FB_SYS_FOPS
546cf3ef RD	151	select FB_SYS_FILLRECT
	152	select FB_SYS_COPYAREA
	153	select FB_SYS_IMAGEBLIT
8992da44 RG	154	select INPUT_MATRIXKMAP
	155	select FB_BACKLIGHT
	156	help
	157	Say yes here to add support for Holtek HT16K33, RAM mapping 16*8
	158	LED controller driver with keyscan.
	159
f5920969	160	endif # AUXDISPLAY
51c1e9b5	161
00846a44 AS	162	config ARM_CHARLCD
	163	bool "ARM Ltd. Character LCD Driver"
	164	depends on PLAT_VERSATILE
	165	help
	166	This is a driver for the character LCD found on the ARM Ltd.
	167	Versatile and RealView Platform Baseboards. It doesn't do
	168	very much more than display the text "ARM Linux" on the first
	169	line and the Linux version on the second line, but that's
	170	still useful.
	171
51c1e9b5 AS	172	config PANEL
	173	tristate "Parallel port LCD/Keypad Panel support"
	174	depends on PARPORT
	175	select CHARLCD
	176	---help---
	177	Say Y here if you have an HD44780 or KS-0074 LCD connected to your
	178	parallel port. This driver also features 4 and 6-key keypads. The LCD
	179	is accessible through the /dev/lcd char device (10, 156), and the
	180	keypad through /dev/keypad (10, 185). This code can either be
	181	compiled as a module, or linked into the kernel and started at boot.
	182	If you don't understand what all this is about, say N.
	183
	184	if PANEL
	185
	186	config PANEL_PARPORT
	187	int "Default parallel port number (0=LPT1)"
	188	range 0 255
	189	default "0"
	190	---help---
	191	This is the index of the parallel port the panel is connected to. One
	192	driver instance only supports one parallel port, so if your keypad
	193	and LCD are connected to two separate ports, you have to start two
	194	modules with different arguments. Numbering starts with '0' for LPT1,
	195	and so on.
	196
	197	config PANEL_PROFILE
	198	int "Default panel profile (0-5, 0=custom)"
	199	range 0 5
	200	default "5"
	201	---help---
	202	To ease configuration, the driver supports different configuration
	203	profiles for past and recent wirings. These profiles can also be
	204	used to define an approximative configuration, completed by a few
	205	other options. Here are the profiles :
	206
	207	0 = custom (see further)
	208	1 = 2x16 parallel LCD, old keypad
	209	2 = 2x16 serial LCD (KS-0074), new keypad
	210	3 = 2x16 parallel LCD (Hantronix), no keypad
	211	4 = 2x16 parallel LCD (Nexcom NSA1045) with Nexcom's keypad
	212	5 = 2x40 parallel LCD (old one), with old keypad
	213
	214	Custom configurations allow you to define how your display is
	215	wired to the parallel port, and how it works. This is only intended
	216	for experts.
	217
	218	config PANEL_KEYPAD
	219	depends on PANEL_PROFILE="0"
	220	int "Keypad type (0=none, 1=old 6 keys, 2=new 6 keys, 3=Nexcom 4 keys)"
	221	range 0 3
	222	default 0
	223	---help---
	224	This enables and configures a keypad connected to the parallel port.
	225	The keys will be read from character device 10,185. Valid values are :
	226
	227	0 : do not enable this driver
	228	1 : old 6 keys keypad
	229	2 : new 6 keys keypad, as used on the server at www.ant-computing.com
	230	3 : Nexcom NSA1045's 4 keys keypad
	231
	232	New profiles can be described in the driver source. The driver also
	233	supports simultaneous keys pressed when the keypad supports them.
	234
	235	config PANEL_LCD
236	depends on PANEL_PROFILE="0"
237	int "LCD type (0=none, 1=custom, 2=old //, 3=ks0074, 4=hantronix, 5=Nexcom)"
238	range 0 5
239	default 0
240	---help---
241	This enables and configures an LCD connected to the parallel port.
242	The driver includes an interpreter for escape codes starting with
243	'\e[L' which are specific to the LCD, and a few ANSI codes. The
244	driver will be registered as character device 10,156, usually
245	under the name '/dev/lcd'. There are a total of 6 supported types :
246
247	0 : do not enable the driver
248	1 : custom configuration and wiring (see further)
249	2 : 2x16 & 2x40 parallel LCD (old wiring)
250	3 : 2x16 serial LCD (KS-0074 based)
251	4 : 2x16 parallel LCD (Hantronix wiring)
252	5 : 2x16 parallel LCD (Nexcom wiring)
253
254	When type '1' is specified, other options will appear to configure
255	more precise aspects (wiring, dimensions, protocol, ...). Please note
256	that those values changed from the 2.4 driver for better consistency.
257
258	config PANEL_LCD_HEIGHT
259	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
260	int "Number of lines on the LCD (1-2)"
261	range 1 2
262	default 2
263	---help---
264	This is the number of visible character lines on the LCD in custom profile.
265	It can either be 1 or 2.
266
267	config PANEL_LCD_WIDTH
268	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
269	int "Number of characters per line on the LCD (1-40)"
270	range 1 40
271	default 40
272	---help---
273	This is the number of characters per line on the LCD in custom profile.
274	Common values are 16,20,24,40.
275
276	config PANEL_LCD_BWIDTH
277	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
278	int "Internal LCD line width (1-40, 40 by default)"
279	range 1 40
280	default 40
281	---help---
282	Most LCDs use a standard controller which supports hardware lines of 40
283	characters, although sometimes only 16, 20 or 24 of them are really wired
284	to the terminal. This results in some non-visible but addressable characters,
285	and is the case for most parallel LCDs. Other LCDs, and some serial ones,
286	however, use the same line width internally as what is visible. The KS0074
287	for example, uses 16 characters per line for 16 visible characters per line.
288
289	This option lets you configure the value used by your LCD in 'custom' profile.
290	If you don't know, put '40' here.
291
292	config PANEL_LCD_HWIDTH
293	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
294	int "Hardware LCD line width (1-64, 64 by default)"
295	range 1 64
296	default 64
297	---help---
298	Most LCDs use a single address bit to differentiate line 0 and line 1. Since
299	some of them need to be able to address 40 chars with the lower bits, they
300	often use the immediately superior power of 2, which is 64, to address the
301	next line.
302
303	If you don't know what your LCD uses, in doubt let 16 here for a 2x16, and
304	64 here for a 2x40.
305
306	config PANEL_LCD_CHARSET
307	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
308	int "LCD character set (0=normal, 1=KS0074)"
309	range 0 1
310	default 0
311	---help---
312	Some controllers such as the KS0074 use a somewhat strange character set
313	where many symbols are at unusual places. The driver knows how to map
314	'standard' ASCII characters to the character sets used by these controllers.
315	Valid values are :
316
317	0 : normal (untranslated) character set
318	1 : KS0074 character set
319
320	If you don't know, use the normal one (0).
321
322	config PANEL_LCD_PROTO
323	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
324	int "LCD communication mode (0=parallel 8 bits, 1=serial)"
325	range 0 1
326	default 0
327	---help---
328	This driver now supports any serial or parallel LCD wired to a parallel
329	port. But before assigning signals, the driver needs to know if it will
330	be driving a serial LCD or a parallel one. Serial LCDs only use 2 wires
331	(SDA/SCL), while parallel ones use 2 or 3 wires for the control signals
332	(E, RS, sometimes RW), and 4 or 8 for the data. Use 0 here for a 8 bits
333	parallel LCD, and 1 for a serial LCD.
334
335	config PANEL_LCD_PIN_E
336	depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO="0"
337	int "Parallel port pin number & polarity connected to the LCD E signal (-17...17) "
338	range -17 17
339	default 14
340	---help---
341	This describes the number of the parallel port pin to which the LCD 'E'
342	signal has been connected. It can be :
343
344	0 : no connection (eg: connected to ground)
345	1..17 : directly connected to any of these pins on the DB25 plug
346	-1..-17 : connected to the same pin through an inverter (eg: transistor).
347
348	Default for the 'E' pin in custom profile is '14' (AUTOFEED).
349
350	config PANEL_LCD_PIN_RS
351	depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO="0"
352	int "Parallel port pin number & polarity connected to the LCD RS signal (-17...17) "
353	range -17 17
354	default 17
355	---help---
356	This describes the number of the parallel port pin to which the LCD 'RS'
357	signal has been connected. It can be :
358
359	0 : no connection (eg: connected to ground)
360	1..17 : directly connected to any of these pins on the DB25 plug
361	-1..-17 : connected to the same pin through an inverter (eg: transistor).
362
363	Default for the 'RS' pin in custom profile is '17' (SELECT IN).
364
365	config PANEL_LCD_PIN_RW
366	depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO="0"
367	int "Parallel port pin number & polarity connected to the LCD RW signal (-17...17) "
368	range -17 17
369	default 16
370	---help---
371	This describes the number of the parallel port pin to which the LCD 'RW'
372	signal has been connected. It can be :
373
374	0 : no connection (eg: connected to ground)
375	1..17 : directly connected to any of these pins on the DB25 plug
376	-1..-17 : connected to the same pin through an inverter (eg: transistor).
377
378	Default for the 'RW' pin in custom profile is '16' (INIT).
379
380	config PANEL_LCD_PIN_SCL
381	depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO!="0"
382	int "Parallel port pin number & polarity connected to the LCD SCL signal (-17...17) "
383	range -17 17
384	default 1
385	---help---
386	This describes the number of the parallel port pin to which the serial
387	LCD 'SCL' signal has been connected. It can be :
388
389	0 : no connection (eg: connected to ground)
390	1..17 : directly connected to any of these pins on the DB25 plug
391	-1..-17 : connected to the same pin through an inverter (eg: transistor).
392
393	Default for the 'SCL' pin in custom profile is '1' (STROBE).
394
395	config PANEL_LCD_PIN_SDA
396	depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO!="0"
397	int "Parallel port pin number & polarity connected to the LCD SDA signal (-17...17) "
398	range -17 17
399	default 2
400	---help---
401	This describes the number of the parallel port pin to which the serial
402	LCD 'SDA' signal has been connected. It can be :
403
404	0 : no connection (eg: connected to ground)
405	1..17 : directly connected to any of these pins on the DB25 plug
406	-1..-17 : connected to the same pin through an inverter (eg: transistor).
407
408	Default for the 'SDA' pin in custom profile is '2' (D0).
409
410	config PANEL_LCD_PIN_BL
411	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
412	int "Parallel port pin number & polarity connected to the LCD backlight signal (-17...17) "
413	range -17 17
414	default 0
415	---help---
416	This describes the number of the parallel port pin to which the LCD 'BL' signal
417	has been connected. It can be :
418
419	0 : no connection (eg: connected to ground)
420	1..17 : directly connected to any of these pins on the DB25 plug
421	-1..-17 : connected to the same pin through an inverter (eg: transistor).
422
423	Default for the 'BL' pin in custom profile is '0' (uncontrolled).
424
425	config PANEL_CHANGE_MESSAGE
426	bool "Change LCD initialization message ?"
427	default "n"
428	---help---
429	This allows you to replace the boot message indicating the kernel version
430	and the driver version with a custom message. This is useful on appliances
431	where a simple 'Starting system' message can be enough to stop a customer
432	from worrying.
433
434	If you say 'Y' here, you'll be able to choose a message yourself. Otherwise,
435	say 'N' and keep the default message with the version.
436
437	config PANEL_BOOT_MESSAGE
438	depends on PANEL_CHANGE_MESSAGE="y"
439	string "New initialization message"
440	default ""
441	---help---
442	This allows you to replace the boot message indicating the kernel version
443	and the driver version with a custom message. This is useful on appliances
444	where a simple 'Starting system' message can be enough to stop a customer
445	from worrying.
446
447	An empty message will only clear the display at driver init time. Any other
448	printf()-formatted message is valid with newline and escape codes.
449
450	endif # PANEL