[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.

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.

endif # AUXDISPLAY

menuconfig 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

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
b5b903fb RD	167	endif # AUXDISPLAY
b5b903fb RD	168
8e2c3f17	169	menuconfig PANEL
51c1e9b5 AS	170	tristate "Parallel port LCD/Keypad Panel support"
	171	depends on PARPORT
	172	select CHARLCD
	173	---help---
	174	Say Y here if you have an HD44780 or KS-0074 LCD connected to your
	175	parallel port. This driver also features 4 and 6-key keypads. The LCD
	176	is accessible through the /dev/lcd char device (10, 156), and the
	177	keypad through /dev/keypad (10, 185). This code can either be
	178	compiled as a module, or linked into the kernel and started at boot.
	179	If you don't understand what all this is about, say N.
	180
	181	if PANEL
	182
	183	config PANEL_PARPORT
	184	int "Default parallel port number (0=LPT1)"
	185	range 0 255
	186	default "0"
	187	---help---
	188	This is the index of the parallel port the panel is connected to. One
	189	driver instance only supports one parallel port, so if your keypad
	190	and LCD are connected to two separate ports, you have to start two
	191	modules with different arguments. Numbering starts with '0' for LPT1,
	192	and so on.
	193
	194	config PANEL_PROFILE
	195	int "Default panel profile (0-5, 0=custom)"
	196	range 0 5
	197	default "5"
	198	---help---
	199	To ease configuration, the driver supports different configuration
	200	profiles for past and recent wirings. These profiles can also be
	201	used to define an approximative configuration, completed by a few
	202	other options. Here are the profiles :
	203
	204	0 = custom (see further)
	205	1 = 2x16 parallel LCD, old keypad
	206	2 = 2x16 serial LCD (KS-0074), new keypad
	207	3 = 2x16 parallel LCD (Hantronix), no keypad
	208	4 = 2x16 parallel LCD (Nexcom NSA1045) with Nexcom's keypad
	209	5 = 2x40 parallel LCD (old one), with old keypad
	210
	211	Custom configurations allow you to define how your display is
	212	wired to the parallel port, and how it works. This is only intended
	213	for experts.
	214
	215	config PANEL_KEYPAD
	216	depends on PANEL_PROFILE="0"
	217	int "Keypad type (0=none, 1=old 6 keys, 2=new 6 keys, 3=Nexcom 4 keys)"
	218	range 0 3
	219	default 0
	220	---help---
	221	This enables and configures a keypad connected to the parallel port.
	222	The keys will be read from character device 10,185. Valid values are :
	223
	224	0 : do not enable this driver
	225	1 : old 6 keys keypad
	226	2 : new 6 keys keypad, as used on the server at www.ant-computing.com
	227	3 : Nexcom NSA1045's 4 keys keypad
	228
	229	New profiles can be described in the driver source. The driver also
	230	supports simultaneous keys pressed when the keypad supports them.
	231
	232	config PANEL_LCD
	233	depends on PANEL_PROFILE="0"
234	int "LCD type (0=none, 1=custom, 2=old //, 3=ks0074, 4=hantronix, 5=Nexcom)"
235	range 0 5
236	default 0
237	---help---
238	This enables and configures an LCD connected to the parallel port.
239	The driver includes an interpreter for escape codes starting with
240	'\e[L' which are specific to the LCD, and a few ANSI codes. The
241	driver will be registered as character device 10,156, usually
242	under the name '/dev/lcd'. There are a total of 6 supported types :
243
244	0 : do not enable the driver
245	1 : custom configuration and wiring (see further)
246	2 : 2x16 & 2x40 parallel LCD (old wiring)
247	3 : 2x16 serial LCD (KS-0074 based)
248	4 : 2x16 parallel LCD (Hantronix wiring)
249	5 : 2x16 parallel LCD (Nexcom wiring)
250
251	When type '1' is specified, other options will appear to configure
252	more precise aspects (wiring, dimensions, protocol, ...). Please note
253	that those values changed from the 2.4 driver for better consistency.
254
255	config PANEL_LCD_HEIGHT
256	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
257	int "Number of lines on the LCD (1-2)"
258	range 1 2
259	default 2
260	---help---
261	This is the number of visible character lines on the LCD in custom profile.
262	It can either be 1 or 2.
263
264	config PANEL_LCD_WIDTH
265	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
266	int "Number of characters per line on the LCD (1-40)"
267	range 1 40
268	default 40
269	---help---
270	This is the number of characters per line on the LCD in custom profile.
271	Common values are 16,20,24,40.
272
273	config PANEL_LCD_BWIDTH
274	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
275	int "Internal LCD line width (1-40, 40 by default)"
276	range 1 40
277	default 40
278	---help---
279	Most LCDs use a standard controller which supports hardware lines of 40
280	characters, although sometimes only 16, 20 or 24 of them are really wired
281	to the terminal. This results in some non-visible but addressable characters,
282	and is the case for most parallel LCDs. Other LCDs, and some serial ones,
283	however, use the same line width internally as what is visible. The KS0074
284	for example, uses 16 characters per line for 16 visible characters per line.
285
286	This option lets you configure the value used by your LCD in 'custom' profile.
287	If you don't know, put '40' here.
288
289	config PANEL_LCD_HWIDTH
290	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
291	int "Hardware LCD line width (1-64, 64 by default)"
292	range 1 64
293	default 64
294	---help---
295	Most LCDs use a single address bit to differentiate line 0 and line 1. Since
296	some of them need to be able to address 40 chars with the lower bits, they
297	often use the immediately superior power of 2, which is 64, to address the
298	next line.
299
300	If you don't know what your LCD uses, in doubt let 16 here for a 2x16, and
301	64 here for a 2x40.
302
303	config PANEL_LCD_CHARSET
304	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
305	int "LCD character set (0=normal, 1=KS0074)"
306	range 0 1
307	default 0
308	---help---
309	Some controllers such as the KS0074 use a somewhat strange character set
310	where many symbols are at unusual places. The driver knows how to map
311	'standard' ASCII characters to the character sets used by these controllers.
312	Valid values are :
313
314	0 : normal (untranslated) character set
315	1 : KS0074 character set
316
317	If you don't know, use the normal one (0).
318
319	config PANEL_LCD_PROTO
320	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
321	int "LCD communication mode (0=parallel 8 bits, 1=serial)"
322	range 0 1
323	default 0
324	---help---
325	This driver now supports any serial or parallel LCD wired to a parallel
326	port. But before assigning signals, the driver needs to know if it will
327	be driving a serial LCD or a parallel one. Serial LCDs only use 2 wires
328	(SDA/SCL), while parallel ones use 2 or 3 wires for the control signals
329	(E, RS, sometimes RW), and 4 or 8 for the data. Use 0 here for a 8 bits
330	parallel LCD, and 1 for a serial LCD.
331
332	config PANEL_LCD_PIN_E
333	depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO="0"
334	int "Parallel port pin number & polarity connected to the LCD E signal (-17...17) "
335	range -17 17
336	default 14
337	---help---
338	This describes the number of the parallel port pin to which the LCD 'E'
339	signal has been connected. It can be :
340
341	0 : no connection (eg: connected to ground)
342	1..17 : directly connected to any of these pins on the DB25 plug
343	-1..-17 : connected to the same pin through an inverter (eg: transistor).
344
345	Default for the 'E' pin in custom profile is '14' (AUTOFEED).
346
347	config PANEL_LCD_PIN_RS
348	depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO="0"
349	int "Parallel port pin number & polarity connected to the LCD RS signal (-17...17) "
350	range -17 17
351	default 17
352	---help---
353	This describes the number of the parallel port pin to which the LCD 'RS'
354	signal has been connected. It can be :
355
356	0 : no connection (eg: connected to ground)
357	1..17 : directly connected to any of these pins on the DB25 plug
358	-1..-17 : connected to the same pin through an inverter (eg: transistor).
359
360	Default for the 'RS' pin in custom profile is '17' (SELECT IN).
361
362	config PANEL_LCD_PIN_RW
363	depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO="0"
364	int "Parallel port pin number & polarity connected to the LCD RW signal (-17...17) "
365	range -17 17
366	default 16
367	---help---
368	This describes the number of the parallel port pin to which the LCD 'RW'
369	signal has been connected. It can be :
370
371	0 : no connection (eg: connected to ground)
372	1..17 : directly connected to any of these pins on the DB25 plug
373	-1..-17 : connected to the same pin through an inverter (eg: transistor).
374
375	Default for the 'RW' pin in custom profile is '16' (INIT).
376
377	config PANEL_LCD_PIN_SCL
378	depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO!="0"
379	int "Parallel port pin number & polarity connected to the LCD SCL signal (-17...17) "
380	range -17 17
381	default 1
382	---help---
383	This describes the number of the parallel port pin to which the serial
384	LCD 'SCL' signal has been connected. It can be :
385
386	0 : no connection (eg: connected to ground)
387	1..17 : directly connected to any of these pins on the DB25 plug
388	-1..-17 : connected to the same pin through an inverter (eg: transistor).
389
390	Default for the 'SCL' pin in custom profile is '1' (STROBE).
391
392	config PANEL_LCD_PIN_SDA
393	depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO!="0"
394	int "Parallel port pin number & polarity connected to the LCD SDA signal (-17...17) "
395	range -17 17
396	default 2
397	---help---
398	This describes the number of the parallel port pin to which the serial
399	LCD 'SDA' signal has been connected. It can be :
400
401	0 : no connection (eg: connected to ground)
402	1..17 : directly connected to any of these pins on the DB25 plug
403	-1..-17 : connected to the same pin through an inverter (eg: transistor).
404
405	Default for the 'SDA' pin in custom profile is '2' (D0).
406
407	config PANEL_LCD_PIN_BL
408	depends on PANEL_PROFILE="0" && PANEL_LCD="1"
409	int "Parallel port pin number & polarity connected to the LCD backlight signal (-17...17) "
410	range -17 17
411	default 0
412	---help---
413	This describes the number of the parallel port pin to which the LCD 'BL' signal
414	has been connected. It can be :
415
416	0 : no connection (eg: connected to ground)
417	1..17 : directly connected to any of these pins on the DB25 plug
418	-1..-17 : connected to the same pin through an inverter (eg: transistor).
419
420	Default for the 'BL' pin in custom profile is '0' (uncontrolled).
421
422	config PANEL_CHANGE_MESSAGE
423	bool "Change LCD initialization message ?"
424	default "n"
425	---help---
426	This allows you to replace the boot message indicating the kernel version
427	and the driver version with a custom message. This is useful on appliances
428	where a simple 'Starting system' message can be enough to stop a customer
429	from worrying.
430
431	If you say 'Y' here, you'll be able to choose a message yourself. Otherwise,
432	say 'N' and keep the default message with the version.
433
434	config PANEL_BOOT_MESSAGE
435	depends on PANEL_CHANGE_MESSAGE="y"
436	string "New initialization message"
437	default ""
438	---help---
439	This allows you to replace the boot message indicating the kernel version
440	and the driver version with a custom message. This is useful on appliances
441	where a simple 'Starting system' message can be enough to stop a customer
442	from worrying.
443
444	An empty message will only clear the display at driver init time. Any other
445	printf()-formatted message is valid with newline and escape codes.
446
447	endif # PANEL
b5b903fb RD	448
	449	config CHARLCD
	450	tristate "Character LCD core support" if COMPILE_TEST