diff options
Diffstat (limited to 'drivers/auxdisplay/Kconfig')
| -rw-r--r-- | drivers/auxdisplay/Kconfig | 449 |
1 files changed, 275 insertions, 174 deletions
diff --git a/drivers/auxdisplay/Kconfig b/drivers/auxdisplay/Kconfig index 57410f9c5d44..bedc6133f970 100644 --- a/drivers/auxdisplay/Kconfig +++ b/drivers/auxdisplay/Kconfig @@ -1,14 +1,14 @@ # SPDX-License-Identifier: GPL-2.0 # # For a description of the syntax of this configuration file, -# see Documentation/kbuild/kconfig-language.txt. +# see Documentation/kbuild/kconfig-language.rst. # # Auxiliary display drivers configuration. # menuconfig AUXDISPLAY bool "Auxiliary Display support" - ---help--- + help Say Y here to get to see options for auxiliary display drivers. This option alone does not add any kernel code. @@ -16,161 +16,54 @@ menuconfig AUXDISPLAY if AUXDISPLAY +# +# Character LCD section +# +config CHARLCD + tristate "Character LCD core support" if COMPILE_TEST + help + This is the base system for character-based LCD displays. + It makes no sense to have this alone, you select your display driver + and if it needs the charlcd core, it will select it automatically. + This is some character LCD core interface that multiple drivers can + use. + +config HD44780_COMMON + tristate "Common functions for HD44780 (and compatibles) LCD displays" if COMPILE_TEST + select CHARLCD + help + This is a module with the common symbols for HD44780 (and compatibles) + displays. This is the code that multiple other modules use. It is not + useful alone. If you have some sort of HD44780 compatible display, + you very likely use this. It is selected automatically by selecting + your concrete display. + config HD44780 tristate "HD44780 Character LCD support" depends on GPIOLIB || COMPILE_TEST - select CHARLCD - ---help--- + select HD44780_COMMON + 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 +config LCD2S + tristate "lcd2s 20x4 character display over I2C console" + depends on I2C + select CHARLCD 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. + This is a driver that lets you use the lcd2s 20x4 character display + from Modtronix engineering as a console output device. The display + is a simple single color character display. You have to connect it + to an I2C bus. -endif # AUXDISPLAY - -menuconfig PANEL +menuconfig PARPORT_PANEL tristate "Parallel port LCD/Keypad Panel support" depends on PARPORT - select CHARLCD - ---help--- + select HD44780_COMMON + 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 @@ -178,13 +71,13 @@ menuconfig PANEL 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 +if PARPORT_PANEL config PANEL_PARPORT int "Default parallel port number (0=LPT1)" range 0 255 default "0" - ---help--- + 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 @@ -195,7 +88,7 @@ config PANEL_PROFILE int "Default panel profile (0-5, 0=custom)" range 0 5 default "5" - ---help--- + 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 @@ -217,7 +110,7 @@ config PANEL_KEYPAD int "Keypad type (0=none, 1=old 6 keys, 2=new 6 keys, 3=Nexcom 4 keys)" range 0 3 default 0 - ---help--- + 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 : @@ -234,7 +127,7 @@ config PANEL_LCD int "LCD type (0=none, 1=custom, 2=old //, 3=ks0074, 4=hantronix, 5=Nexcom)" range 0 5 default 0 - ---help--- + 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 @@ -257,7 +150,7 @@ config PANEL_LCD_HEIGHT int "Number of lines on the LCD (1-2)" range 1 2 default 2 - ---help--- + help This is the number of visible character lines on the LCD in custom profile. It can either be 1 or 2. @@ -266,7 +159,7 @@ config PANEL_LCD_WIDTH int "Number of characters per line on the LCD (1-40)" range 1 40 default 40 - ---help--- + help This is the number of characters per line on the LCD in custom profile. Common values are 16,20,24,40. @@ -275,7 +168,7 @@ config PANEL_LCD_BWIDTH int "Internal LCD line width (1-40, 40 by default)" range 1 40 default 40 - ---help--- + 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, @@ -291,7 +184,7 @@ config PANEL_LCD_HWIDTH int "Hardware LCD line width (1-64, 64 by default)" range 1 64 default 64 - ---help--- + 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 @@ -305,7 +198,7 @@ config PANEL_LCD_CHARSET int "LCD character set (0=normal, 1=KS0074)" range 0 1 default 0 - ---help--- + 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. @@ -321,7 +214,7 @@ config PANEL_LCD_PROTO int "LCD communication mode (0=parallel 8 bits, 1=serial)" range 0 1 default 0 - ---help--- + 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 @@ -331,10 +224,10 @@ config PANEL_LCD_PROTO 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) " + int "Parallel port pin number & polarity connected to the LCD E signal (-17...17) " range -17 17 default 14 - ---help--- + help This describes the number of the parallel port pin to which the LCD 'E' signal has been connected. It can be : @@ -346,10 +239,10 @@ config PANEL_LCD_PIN_E 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) " + int "Parallel port pin number & polarity connected to the LCD RS signal (-17...17) " range -17 17 default 17 - ---help--- + help This describes the number of the parallel port pin to which the LCD 'RS' signal has been connected. It can be : @@ -361,10 +254,10 @@ config PANEL_LCD_PIN_RS 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) " + int "Parallel port pin number & polarity connected to the LCD RW signal (-17...17) " range -17 17 default 16 - ---help--- + help This describes the number of the parallel port pin to which the LCD 'RW' signal has been connected. It can be : @@ -376,10 +269,10 @@ config PANEL_LCD_PIN_RW 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) " + int "Parallel port pin number & polarity connected to the LCD SCL signal (-17...17) " range -17 17 default 1 - ---help--- + help This describes the number of the parallel port pin to which the serial LCD 'SCL' signal has been connected. It can be : @@ -391,10 +284,10 @@ config PANEL_LCD_PIN_SCL 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) " + int "Parallel port pin number & polarity connected to the LCD SDA signal (-17...17) " range -17 17 default 2 - ---help--- + help This describes the number of the parallel port pin to which the serial LCD 'SDA' signal has been connected. It can be : @@ -406,12 +299,12 @@ config PANEL_LCD_PIN_SDA 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) " + int "Parallel port pin number & polarity connected to the LCD backlight signal (-17...17) " range -17 17 default 0 - ---help--- + help This describes the number of the parallel port pin to which the LCD 'BL' signal - has been connected. It can be : + 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 @@ -419,10 +312,12 @@ config PANEL_LCD_PIN_BL Default for the 'BL' pin in custom profile is '0' (uncontrolled). +endif # PARPORT_PANEL + config PANEL_CHANGE_MESSAGE bool "Change LCD initialization message ?" - default "n" - ---help--- + depends on CHARLCD || LINEDISP + 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 @@ -435,7 +330,7 @@ config PANEL_BOOT_MESSAGE depends on PANEL_CHANGE_MESSAGE="y" string "New initialization message" default "" - ---help--- + 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 @@ -444,7 +339,213 @@ config PANEL_BOOT_MESSAGE 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 +choice + prompt "Backlight initial state" + default CHARLCD_BL_FLASH + help + Select the initial backlight state on boot or module load. -config CHARLCD - tristate "Character LCD core support" if COMPILE_TEST + Previously, there was no option for this: the backlight flashed + briefly on init. Now you can also turn it off/on. + + 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 + +# +# Samsung KS0108 LCD controller section +# +config KS0108 + tristate "KS0108 LCD Controller" + depends on PARPORT_PC + 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_SYSMEM_HELPERS + 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/admin-guide/auxdisplay/cfag12864b.rst + + 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. + +# +# Single character line display section +# +config LINEDISP + tristate "Character line display core support" if COMPILE_TEST + help + This is the core support for single-line character displays, to be + selected by drivers that use it. + +config IMG_ASCII_LCD + tristate "Imagination Technologies ASCII LCD Display" + depends on HAS_IOMEM + default y if MIPS_MALTA + select MFD_SYSCON + select LINEDISP + 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 && I2C && INPUT && BACKLIGHT_CLASS_DEVICE + select FB_SYSMEM_HELPERS + select INPUT_MATRIXKMAP + select FB_BACKLIGHT + select NEW_LEDS + select LEDS_CLASS + select LINEDISP + help + Say yes here to add support for Holtek HT16K33, RAM mapping 16*8 + LED controller driver with keyscan. + +config MAX6959 + tristate "Maxim MAX6958/6959 7-segment LED controller" + depends on I2C + select BITREVERSE + select REGMAP_I2C + select LINEDISP + help + If you say yes here you get support for the following Maxim chips + (I2C 7-segment LED display controller): + - MAX6958 + - MAX6959 (input support) + + This driver can also be built as a module. If so, the module + will be called max6959. + +config SEG_LED_GPIO + tristate "Generic 7-segment LED display" + depends on GPIOLIB || COMPILE_TEST + select LINEDISP + help + This driver supports a generic 7-segment LED display made up + of GPIO pins connected to the individual segments. + + This driver can also be built as a module. If so, the module + will be called seg-led-gpio. + +# +# Character LCD with non-conforming interface section +# +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 + +# +# Deprecated options +# +config PANEL + tristate "Parallel port LCD/Keypad Panel support (OLD OPTION)" + depends on PARPORT + select AUXDISPLAY + select PARPORT_PANEL |