| config PANEL | |
| tristate "Parallel port LCD/Keypad Panel support" | |
| depends on PARPORT | |
| ---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). Both require misc device to be | |
| enabled. 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 PANEL_PARPORT | |
| int "Default parallel port number (0=LPT1)" | |
| depends on PANEL | |
| 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)" | |
| depends on PANEL | |
| 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 && 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 && 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 && 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 && 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 && 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 && 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 && 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 && 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 && 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 && 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 && 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 && 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 && 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 && 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 | |
| depends on PANEL | |
| 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 && 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. |