[thirdparty/linux.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.

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
	select MFD_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.

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.

menuconfig PARPORT_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 PARPORT_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).

endif # PARPORT_PANEL

config PANEL_CHANGE_MESSAGE
	bool "Change LCD initialization message ?"
	depends on CHARLCD
	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.

choice
	prompt "Backlight initial state"
	default CHARLCD_BL_FLASH

	config CHARLCD_BL_OFF
		bool "Off"
		help
		  Backlight is initially turned off

	config CHARLCD_BL_ON
		bool "On"
		help
		  Backlight is initially turned on

	config CHARLCD_BL_FLASH
		bool "Flash"
		help
		  Backlight is flashed briefly on init

endchoice

endif # AUXDISPLAY

config PANEL
	tristate "Parallel port LCD/Keypad Panel support (OLD OPTION)"
	depends on PARPORT
	select AUXDISPLAY
	select PARPORT_PANEL

config CHARLCD
	tristate "Character LCD core support" if COMPILE_TEST
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
c0aa24ba	17	if AUXDISPLAY
70e84049	18
d47d8836 GU	19	config HD44780
	20	tristate "HD44780 Character LCD support"
	21	depends on GPIOLIB \|\| COMPILE_TEST
	22	select CHARLCD
	23	---help---
	24	Enable support for Character LCDs using a HD44780 controller.
	25	The LCD is accessible through the /dev/lcd char device (10, 156).
	26	This code can either be compiled as a module, or linked into the
	27	kernel and started at boot.
	28	If you don't understand what all this is about, say N.
	29
70e84049 MOS	30	config KS0108
	31	tristate "KS0108 LCD Controller"
	32	depends on PARPORT_PC
	33	default n
	34	---help---
	35	If you have a LCD controlled by one or more KS0108
	36	controllers, say Y. You will need also another more specific
	37	driver for your LCD.
	38
	39	Depends on Parallel Port support. If you say Y at
	40	parport, you will be able to compile this as a module (M)
	41	and built-in as well (Y).
	42
	43	To compile this as a module, choose M here:
	44	the module will be called ks0108.
	45
	46	If unsure, say N.
	47
	48	config KS0108_PORT
	49	hex "Parallel port where the LCD is connected"
	50	depends on KS0108
	51	default 0x378
	52	---help---
	53	The address of the parallel port where the LCD is connected.
	54
	55	The first standard parallel port address is 0x378.
	56	The second standard parallel port address is 0x278.
	57	The third standard parallel port address is 0x3BC.
	58
	59	You can specify a different address if you need.
	60
	61	If you don't know what I'm talking about, load the parport module,
	62	and execute "dmesg" or "cat /proc/ioports". You can see there how
	63	many parallel ports are present and which address each one has.
	64
	65	Usually you only need to use 0x378.
	66
	67	If you compile this as a module, you can still override this
	68	using the module parameters.
	69
	70	config KS0108_DELAY
	71	int "Delay between each control writing (microseconds)"
	72	depends on KS0108
	73	default "2"
	74	---help---
	75	Amount of time the ks0108 should wait between each control write
	76	to the parallel port.
	77
450c622e	78	If your LCD seems to miss random writings, increment this.
70e84049 MOS	79
	80	If you don't know what I'm talking about, ignore it.
	81
	82	If you compile this as a module, you can still override this
	83	value using the module parameters.
	84
	85	config CFAG12864B
	86	tristate "CFAG12864B LCD"
	87	depends on X86
	88	depends on FB
	89	depends on KS0108
bfeeffbb AO	90	select FB_SYS_FILLRECT
	91	select FB_SYS_COPYAREA
	92	select FB_SYS_IMAGEBLIT
	93	select FB_SYS_FOPS
70e84049 MOS	94	default n
	95	---help---
	96	If you have a Crystalfontz 128x64 2-color LCD, cfag12864b Series,
	97	say Y. You also need the ks0108 LCD Controller driver.
	98
	99	For help about how to wire your LCD to the parallel port,
	100	check Documentation/auxdisplay/cfag12864b
	101
	102	Depends on the x86 arch and the framebuffer support.
	103
	104	The LCD framebuffer driver can be attached to a console.
	105	It will work fine. However, you can't attach it to the fbdev driver
	106	of the xorg server.
	107
	108	To compile this as a module, choose M here:
	109	the modules will be called cfag12864b and cfag12864bfb.
	110
	111	If unsure, say N.
	112
	113	config CFAG12864B_RATE
	114	int "Refresh rate (hertz)"
	115	depends on CFAG12864B
	116	default "20"
	117	---help---
	118	Refresh rate of the LCD.
	119
	120	As the LCD is not memory mapped, the driver has to make the work by
	121	software. This means you should be careful setting this value higher.
	122	If your CPUs are really slow or you feel the system is slowed down,
	123	decrease the value.
	124
	125	Be careful modifying this value to a very high value:
	126	You can freeze the computer, or the LCD maybe can't draw as fast as you
	127	are requesting.
	128
	129	If you don't know what I'm talking about, ignore it.
	130
	131	If you compile this as a module, you can still override this
	132	value using the module parameters.
f5920969	133
0cad855f PB	134	config IMG_ASCII_LCD
0cad855f PB	135	tristate "Imagination Technologies ASCII LCD Display"
141cbfba	136	depends on HAS_IOMEM
0186a092	137	default y if MIPS_MALTA
aa9d87bd	138	select MFD_SYSCON
0cad855f PB	139	help
	140	Enable this to support the simple ASCII LCD displays found on
	141	development boards such as the MIPS Boston, MIPS Malta & MIPS SEAD3
	142	from Imagination Technologies.
	143
8992da44 RG	144	config HT16K33
	145	tristate "Holtek Ht16K33 LED controller with keyscan"
	146	depends on FB && OF && I2C && INPUT
31114fa9	147	select FB_SYS_FOPS
546cf3ef RD	148	select FB_SYS_FILLRECT
	149	select FB_SYS_COPYAREA
	150	select FB_SYS_IMAGEBLIT
8992da44 RG	151	select INPUT_MATRIXKMAP
	152	select FB_BACKLIGHT
	153	help
	154	Say yes here to add support for Holtek HT16K33, RAM mapping 16*8
	155	LED controller driver with keyscan.
	156
00846a44 AS	157	config ARM_CHARLCD
	158	bool "ARM Ltd. Character LCD Driver"
	159	depends on PLAT_VERSATILE
	160	help
	161	This is a driver for the character LCD found on the ARM Ltd.
	162	Versatile and RealView Platform Baseboards. It doesn't do
	163	very much more than display the text "ARM Linux" on the first
	164	line and the Linux version on the second line, but that's
	165	still useful.
	166
24c764ab	167	menuconfig PARPORT_PANEL
51c1e9b5 AS	168	tristate "Parallel port LCD/Keypad Panel support"
	169	depends on PARPORT
	170	select CHARLCD
	171	---help---
	172	Say Y here if you have an HD44780 or KS-0074 LCD connected to your
	173	parallel port. This driver also features 4 and 6-key keypads. The LCD
	174	is accessible through the /dev/lcd char device (10, 156), and the
	175	keypad through /dev/keypad (10, 185). This code can either be
	176	compiled as a module, or linked into the kernel and started at boot.
	177	If you don't understand what all this is about, say N.
	178
24c764ab	179	if PARPORT_PANEL
51c1e9b5 AS	180
	181	config PANEL_PARPORT
	182	int "Default parallel port number (0=LPT1)"
	183	range 0 255
	184	default "0"
	185	---help---
	186	This is the index of the parallel port the panel is connected to. One
	187	driver instance only supports one parallel port, so if your keypad
	188	and LCD are connected to two separate ports, you have to start two
	189	modules with different arguments. Numbering starts with '0' for LPT1,
	190	and so on.
	191
	192	config PANEL_PROFILE
	193	int "Default panel profile (0-5, 0=custom)"
	194	range 0 5
	195	default "5"
	196	---help---
	197	To ease configuration, the driver supports different configuration
	198	profiles for past and recent wirings. These profiles can also be
	199	used to define an approximative configuration, completed by a few
	200	other options. Here are the profiles :
	201
	202	0 = custom (see further)
	203	1 = 2x16 parallel LCD, old keypad
	204	2 = 2x16 serial LCD (KS-0074), new keypad
	205	3 = 2x16 parallel LCD (Hantronix), no keypad
	206	4 = 2x16 parallel LCD (Nexcom NSA1045) with Nexcom's keypad
	207	5 = 2x40 parallel LCD (old one), with old keypad
	208
	209	Custom configurations allow you to define how your display is
	210	wired to the parallel port, and how it works. This is only intended
	211	for experts.
	212
	213	config PANEL_KEYPAD
	214	depends on PANEL_PROFILE="0"
	215	int "Keypad type (0=none, 1=old 6 keys, 2=new 6 keys, 3=Nexcom 4 keys)"
	216	range 0 3
	217	default 0
	218	---help---
	219	This enables and configures a keypad connected to the parallel port.
	220	The keys will be read from character device 10,185. Valid values are :
	221
	222	0 : do not enable this driver
	223	1 : old 6 keys keypad
	224	2 : new 6 keys keypad, as used on the server at www.ant-computing.com
	225	3 : Nexcom NSA1045's 4 keys keypad
	226
	227	New profiles can be described in the driver source. The driver also
	228	supports simultaneous keys pressed when the keypad supports them.
	229
	230	config PANEL_LCD
	231	depends on PANEL_PROFILE="0"
	232	int "LCD type (0=none, 1=custom, 2=old //, 3=ks0074, 4=hantronix, 5=Nexcom)"
	233	range 0 5
	234	default 0
	235	---help---
	236	This enables and configures an LCD connected to the parallel port.
	237	The driver includes an interpreter for escape codes starting with
	238	'\e[L' which are specific to the LCD, and a few ANSI codes. The
	239	driver will be registered as character device 10,156, usually
	240	under the name '/dev/lcd'. There are a total of 6 supported types :
	241
	242	0 : do not enable the driver
	243	1 : custom configuration and wiring (see further)
244	2 : 2x16 & 2x40 parallel LCD (old wiring)
245	3 : 2x16 serial LCD (KS-0074 based)
246	4 : 2x16 parallel LCD (Hantronix wiring)
247	5 : 2x16 parallel LCD (Nexcom wiring)
248
249	When type '1' is specified, other options will appear to configure
250	more precise aspects (wiring, dimensions, protocol, ...). Please note
251	that those values changed from the 2.4 driver for better consistency.
252
253	config PANEL_LCD_HEIGHT
254	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
255	int "Number of lines on the LCD (1-2)"
256	range 1 2
257	default 2
258	---help---
259	This is the number of visible character lines on the LCD in custom profile.
260	It can either be 1 or 2.
261
262	config PANEL_LCD_WIDTH
263	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
264	int "Number of characters per line on the LCD (1-40)"
265	range 1 40
266	default 40
267	---help---
268	This is the number of characters per line on the LCD in custom profile.
269	Common values are 16,20,24,40.
270
271	config PANEL_LCD_BWIDTH
272	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
273	int "Internal LCD line width (1-40, 40 by default)"
274	range 1 40
275	default 40
276	---help---
277	Most LCDs use a standard controller which supports hardware lines of 40
278	characters, although sometimes only 16, 20 or 24 of them are really wired
279	to the terminal. This results in some non-visible but addressable characters,
280	and is the case for most parallel LCDs. Other LCDs, and some serial ones,
281	however, use the same line width internally as what is visible. The KS0074
282	for example, uses 16 characters per line for 16 visible characters per line.
283
284	This option lets you configure the value used by your LCD in 'custom' profile.
285	If you don't know, put '40' here.
286
287	config PANEL_LCD_HWIDTH
288	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
289	int "Hardware LCD line width (1-64, 64 by default)"
290	range 1 64
291	default 64
292	---help---
293	Most LCDs use a single address bit to differentiate line 0 and line 1. Since
294	some of them need to be able to address 40 chars with the lower bits, they
295	often use the immediately superior power of 2, which is 64, to address the
296	next line.
297
298	If you don't know what your LCD uses, in doubt let 16 here for a 2x16, and
299	64 here for a 2x40.
300
301	config PANEL_LCD_CHARSET
302	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
303	int "LCD character set (0=normal, 1=KS0074)"
304	range 0 1
305	default 0
306	---help---
307	Some controllers such as the KS0074 use a somewhat strange character set
308	where many symbols are at unusual places. The driver knows how to map
309	'standard' ASCII characters to the character sets used by these controllers.
310	Valid values are :
311
312	0 : normal (untranslated) character set
313	1 : KS0074 character set
314
315	If you don't know, use the normal one (0).
316
317	config PANEL_LCD_PROTO
318	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
319	int "LCD communication mode (0=parallel 8 bits, 1=serial)"
320	range 0 1
321	default 0
322	---help---
323	This driver now supports any serial or parallel LCD wired to a parallel
324	port. But before assigning signals, the driver needs to know if it will
325	be driving a serial LCD or a parallel one. Serial LCDs only use 2 wires
326	(SDA/SCL), while parallel ones use 2 or 3 wires for the control signals
327	(E, RS, sometimes RW), and 4 or 8 for the data. Use 0 here for a 8 bits
328	parallel LCD, and 1 for a serial LCD.
329
330	config PANEL_LCD_PIN_E
331	depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO="0"
332	int "Parallel port pin number & polarity connected to the LCD E signal (-17...17) "
333	range -17 17
334	default 14
335	---help---
336	This describes the number of the parallel port pin to which the LCD 'E'
337	signal has been connected. It can be :
338
339	0 : no connection (eg: connected to ground)
340	1..17 : directly connected to any of these pins on the DB25 plug
341	-1..-17 : connected to the same pin through an inverter (eg: transistor).
342
343	Default for the 'E' pin in custom profile is '14' (AUTOFEED).
344
345	config PANEL_LCD_PIN_RS
346	depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO="0"
347	int "Parallel port pin number & polarity connected to the LCD RS signal (-17...17) "
348	range -17 17
349	default 17
350	---help---
351	This describes the number of the parallel port pin to which the LCD 'RS'
352	signal has been connected. It can be :
353
354	0 : no connection (eg: connected to ground)
355	1..17 : directly connected to any of these pins on the DB25 plug
356	-1..-17 : connected to the same pin through an inverter (eg: transistor).
357
358	Default for the 'RS' pin in custom profile is '17' (SELECT IN).
359
360	config PANEL_LCD_PIN_RW
361	depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO="0"
362	int "Parallel port pin number & polarity connected to the LCD RW signal (-17...17) "
363	range -17 17
364	default 16
365	---help---
366	This describes the number of the parallel port pin to which the LCD 'RW'
367	signal has been connected. It can be :
368
369	0 : no connection (eg: connected to ground)
370	1..17 : directly connected to any of these pins on the DB25 plug
371	-1..-17 : connected to the same pin through an inverter (eg: transistor).
372
373	Default for the 'RW' pin in custom profile is '16' (INIT).
374
375	config PANEL_LCD_PIN_SCL
376	depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO!="0"
377	int "Parallel port pin number & polarity connected to the LCD SCL signal (-17...17) "
378	range -17 17
379	default 1
380	---help---
381	This describes the number of the parallel port pin to which the serial
382	LCD 'SCL' signal has been connected. It can be :
383
384	0 : no connection (eg: connected to ground)
385	1..17 : directly connected to any of these pins on the DB25 plug
386	-1..-17 : connected to the same pin through an inverter (eg: transistor).
387
388	Default for the 'SCL' pin in custom profile is '1' (STROBE).
389
390	config PANEL_LCD_PIN_SDA
391	depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO!="0"
392	int "Parallel port pin number & polarity connected to the LCD SDA signal (-17...17) "
393	range -17 17
394	default 2
395	---help---
396	This describes the number of the parallel port pin to which the serial
397	LCD 'SDA' signal has been connected. It can be :
398
399	0 : no connection (eg: connected to ground)
400	1..17 : directly connected to any of these pins on the DB25 plug
401	-1..-17 : connected to the same pin through an inverter (eg: transistor).
402
403	Default for the 'SDA' pin in custom profile is '2' (D0).
404
405	config PANEL_LCD_PIN_BL
406	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
407	int "Parallel port pin number & polarity connected to the LCD backlight signal (-17...17) "
408	range -17 17
409	default 0
410	---help---
411	This describes the number of the parallel port pin to which the LCD 'BL' signal
412	has been connected. It can be :
413
414	0 : no connection (eg: connected to ground)
415	1..17 : directly connected to any of these pins on the DB25 plug
416	-1..-17 : connected to the same pin through an inverter (eg: transistor).
417
418	Default for the 'BL' pin in custom profile is '0' (uncontrolled).
419
24c764ab MR	420	endif # PARPORT_PANEL
24c764ab MR	421
51c1e9b5 AS	422	config PANEL_CHANGE_MESSAGE
51c1e9b5 AS	423	bool "Change LCD initialization message ?"
24c764ab	424	depends on CHARLCD
51c1e9b5 AS	425	default "n"
	426	---help---
	427	This allows you to replace the boot message indicating the kernel version
	428	and the driver version with a custom message. This is useful on appliances
	429	where a simple 'Starting system' message can be enough to stop a customer
	430	from worrying.
	431
	432	If you say 'Y' here, you'll be able to choose a message yourself. Otherwise,
	433	say 'N' and keep the default message with the version.
	434
	435	config PANEL_BOOT_MESSAGE
	436	depends on PANEL_CHANGE_MESSAGE="y"
	437	string "New initialization message"
	438	default ""
	439	---help---
	440	This allows you to replace the boot message indicating the kernel version
	441	and the driver version with a custom message. This is useful on appliances
	442	where a simple 'Starting system' message can be enough to stop a customer
	443	from worrying.
	444
	445	An empty message will only clear the display at driver init time. Any other
	446	printf()-formatted message is valid with newline and escape codes.
	447
cc5d04d8 MR	448	choice
	449	prompt "Backlight initial state"
	450	default CHARLCD_BL_FLASH
	451
	452	config CHARLCD_BL_OFF
	453	bool "Off"
	454	help
	455	Backlight is initially turned off
	456
	457	config CHARLCD_BL_ON
	458	bool "On"
	459	help
	460	Backlight is initially turned on
	461
	462	config CHARLCD_BL_FLASH
	463	bool "Flash"
	464	help
	465	Backlight is flashed briefly on init
	466
	467	endchoice
	468
24c764ab MR	469	endif # AUXDISPLAY
	470
	471	config PANEL
	472	tristate "Parallel port LCD/Keypad Panel support (OLD OPTION)"
	473	depends on PARPORT
	474	select AUXDISPLAY
	475	select PARPORT_PANEL
b5b903fb RD	476
	477	config CHARLCD
	478	tristate "Character LCD core support" if COMPILE_TEST