[linux.git] / drivers / auxdisplay / Kconfig

#
# 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 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.

endif # AUXDISPLAY
Commit	Line	Data
70e84049 MOS	1	#
	2	# For a description of the syntax of this configuration file,
	3	# see Documentation/kbuild/kconfig-language.txt.
	4	#
	5	# Auxiliary display drivers configuration.
	6	#
	7
f5920969	8	menuconfig AUXDISPLAY
f5920969	9	bool "Auxiliary Display support"
06bfb7eb JE	10	---help---
	11	Say Y here to get to see options for auxiliary display drivers.
	12	This option alone does not add any kernel code.
	13
	14	If you say N, all options in this submenu will be skipped and disabled.
f5920969	15
c0aa24ba	16	if AUXDISPLAY
70e84049 MOS	17
	18	config KS0108
	19	tristate "KS0108 LCD Controller"
	20	depends on PARPORT_PC
	21	default n
	22	---help---
	23	If you have a LCD controlled by one or more KS0108
	24	controllers, say Y. You will need also another more specific
	25	driver for your LCD.
	26
	27	Depends on Parallel Port support. If you say Y at
	28	parport, you will be able to compile this as a module (M)
	29	and built-in as well (Y).
	30
	31	To compile this as a module, choose M here:
	32	the module will be called ks0108.
	33
	34	If unsure, say N.
	35
	36	config KS0108_PORT
	37	hex "Parallel port where the LCD is connected"
	38	depends on KS0108
	39	default 0x378
	40	---help---
	41	The address of the parallel port where the LCD is connected.
	42
	43	The first standard parallel port address is 0x378.
	44	The second standard parallel port address is 0x278.
	45	The third standard parallel port address is 0x3BC.
	46
	47	You can specify a different address if you need.
	48
	49	If you don't know what I'm talking about, load the parport module,
	50	and execute "dmesg" or "cat /proc/ioports". You can see there how
	51	many parallel ports are present and which address each one has.
	52
	53	Usually you only need to use 0x378.
	54
	55	If you compile this as a module, you can still override this
	56	using the module parameters.
	57
	58	config KS0108_DELAY
	59	int "Delay between each control writing (microseconds)"
	60	depends on KS0108
	61	default "2"
	62	---help---
	63	Amount of time the ks0108 should wait between each control write
	64	to the parallel port.
	65
450c622e	66	If your LCD seems to miss random writings, increment this.
70e84049 MOS	67
	68	If you don't know what I'm talking about, ignore it.
	69
	70	If you compile this as a module, you can still override this
	71	value using the module parameters.
	72
	73	config CFAG12864B
	74	tristate "CFAG12864B LCD"
	75	depends on X86
	76	depends on FB
	77	depends on KS0108
bfeeffbb AO	78	select FB_SYS_FILLRECT
	79	select FB_SYS_COPYAREA
	80	select FB_SYS_IMAGEBLIT
	81	select FB_SYS_FOPS
70e84049 MOS	82	default n
	83	---help---
	84	If you have a Crystalfontz 128x64 2-color LCD, cfag12864b Series,
	85	say Y. You also need the ks0108 LCD Controller driver.
	86
	87	For help about how to wire your LCD to the parallel port,
	88	check Documentation/auxdisplay/cfag12864b
	89
	90	Depends on the x86 arch and the framebuffer support.
	91
	92	The LCD framebuffer driver can be attached to a console.
	93	It will work fine. However, you can't attach it to the fbdev driver
	94	of the xorg server.
	95
	96	To compile this as a module, choose M here:
	97	the modules will be called cfag12864b and cfag12864bfb.
	98
	99	If unsure, say N.
	100
	101	config CFAG12864B_RATE
	102	int "Refresh rate (hertz)"
	103	depends on CFAG12864B
	104	default "20"
	105	---help---
	106	Refresh rate of the LCD.
	107
	108	As the LCD is not memory mapped, the driver has to make the work by
	109	software. This means you should be careful setting this value higher.
	110	If your CPUs are really slow or you feel the system is slowed down,
	111	decrease the value.
	112
	113	Be careful modifying this value to a very high value:
	114	You can freeze the computer, or the LCD maybe can't draw as fast as you
	115	are requesting.
	116
	117	If you don't know what I'm talking about, ignore it.
	118
	119	If you compile this as a module, you can still override this
	120	value using the module parameters.
f5920969 JE	121
f5920969 JE	122	endif # AUXDISPLAY