diff options
Diffstat (limited to 'drivers/auxdisplay/Kconfig')
| -rw-r--r-- | drivers/auxdisplay/Kconfig | 459 |
1 files changed, 444 insertions, 15 deletions
diff --git a/drivers/auxdisplay/Kconfig b/drivers/auxdisplay/Kconfig index c07e725ea93d..bedc6133f970 100644 --- a/drivers/auxdisplay/Kconfig +++ b/drivers/auxdisplay/Kconfig @@ -1,13 +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. @@ -15,11 +16,362 @@ 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 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 LCD2S + tristate "lcd2s 20x4 character display over I2C console" + depends on I2C + select CHARLCD + help + 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. + +menuconfig PARPORT_PANEL + tristate "Parallel port LCD/Keypad Panel support" + depends on PARPORT + 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 + 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 || 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 + 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 + help + Select the initial backlight state on boot or module load. + + 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 - default n - ---help--- + 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. @@ -37,7 +389,7 @@ config KS0108_PORT hex "Parallel port where the LCD is connected" depends on KS0108 default 0x378 - ---help--- + help The address of the parallel port where the LCD is connected. The first standard parallel port address is 0x378. @@ -59,7 +411,7 @@ config KS0108_DELAY int "Delay between each control writing (microseconds)" depends on KS0108 default "2" - ---help--- + help Amount of time the ks0108 should wait between each control write to the parallel port. @@ -75,17 +427,13 @@ config CFAG12864B 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--- + 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/auxdisplay/cfag12864b + check Documentation/admin-guide/auxdisplay/cfag12864b.rst Depends on the x86 arch and the framebuffer support. @@ -99,10 +447,10 @@ config CFAG12864B If unsure, say N. config CFAG12864B_RATE - int "Refresh rate (hertz)" + int "Refresh rate (hertz)" depends on CFAG12864B default "20" - ---help--- + help Refresh rate of the LCD. As the LCD is not memory mapped, the driver has to make the work by @@ -119,4 +467,85 @@ config CFAG12864B_RATE 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 |