misc: Move panel driver out of staging

Move panel driver from drivers/staging/panel to drivers/misc.

Signed-off-by: Ksenija Stanojevic <ksenija.stanojevic@gmail.com>
Acked-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 278 insertions, 0 deletions

diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 054fc10cb3b6..f0ba78289504 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -525,6 +525,284 @@ config VEXPRESS_SYSCFG
           ARM Ltd. Versatile Express uses specialised platform configuration
           bus. System Configuration interface is one of the possible means
           of generating transactions on this bus.
+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.
 
 source "drivers/misc/c2port/Kconfig"
 source "drivers/misc/eeprom/Kconfig"