e72e9355e3
git: https://android.googlesource.com/kernel/common branch: android-4.9 commit: 03fcc2fe71308c2d164b4e6cbfc738c63e670444
133 lines
3.8 KiB
Plaintext
133 lines
3.8 KiB
Plaintext
#
|
|
# 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.
|
|
|
|
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.
|
|
|
|
endif # AUXDISPLAY
|