drivers/staging/panel/Kconfig

   1 config PANEL
   2         tristate "Parallel port LCD/Keypad Panel support"
   3         depends on PARPORT
   4         ---help---
   5           Say Y here if you have an HD44780 or KS-0074 LCD connected to your
   6           parallel port. This driver also features 4 and 6-key keypads, and a
   7           'smartcard' reader. The LCD is accessible through the /dev/lcd char
   8           device (10, 156), the keypad through /dev/keypad (10, 185), and the
   9           smartcard through /dev/smartcard (10, 186). Both require misc device
  10           to be enabled. This code can either be compiled as a module, or linked
  11           into the kernel and started at boot. If you don't understand what all
  12           this is about, say N.
  13
  14 config PANEL_PARPORT
  15         int "Default parallel port number (0=LPT1)"
  16         depends on PANEL
  17         range 0 255
  18         default "0"
  19         ---help---
  20           This is the index of the parallel port the panel is connected to. One
  21           driver instance only supports one parallel port, so if your keypad
  22           and LCD are connected to two separate ports, you have to start two
  23           modules with different arguments. Numbering starts with '0' for LPT1,
  24           and so on.
  25
  26 config PANEL_PROFILE
  27         int "Default panel profile (0-5, 0=custom)"
  28         depends on PANEL
  29         range 0 5
  30         default "5"
  31         ---help---
  32           To ease configuration, the driver supports different configuration
  33           profiles for past and recent wirings. These profiles can also be
  34           used to define an approximative configuration, completed by a few
  35           other options. Here are the profiles :
  36
  37             0 = custom (see further)
  38             1 = 2x16 parallel LCD, old keypad
  39             2 = 2x16 serial LCD (KS-0074), new keypad
  40             3 = 2x16 parallel LCD (Hantronix), no keypad
  41             4 = 2x16 parallel LCD (Nexcom NSA1045) with Nexcom's keypad
  42             5 = 2x40 parallel LCD (old one), with old keypad
  43
  44           Custom configurations allow you to define how your display is
  45           wired to the parallel port, and how it works. This is only intended
  46           for experts.
  47
  48 config PANEL_SMARTCARD
  49         depends on PANEL && PANEL_PROFILE="0"
  50         bool "Enable smartcard reader (read help!)"
  51         default "n"
  52         ---help---
  53           This enables the 'smartcard' reader as installed on the server at
  54           'www.ant-computing.com'. It was not really a smartcard reader, just
  55           a telephone-card reader. It is left here for demonstration and
  56           experimentation. If you enable this driver, it will be accessible
  57           through character device 10,186.
  58
  59 config PANEL_KEYPAD
  60         depends on PANEL && PANEL_PROFILE="0"
  61         int "Keypad type (0=none, 1=old 6 keys, 2=new 6 keys, 3=Nexcom 4 keys)"
  62         range 0 4
  63         default 0
  64         ---help---
  65           This enables and configures a keypad connected to the parallel port.
  66           The keys will be read from character device 10,185. Valid values are :
  67
  68             0 : do not enable this driver
  69             1 : old 6 keys keypad
  70             2 : new 6 keys keypad, as used on the server at www.ant-computing.com
  71             3 : Nexcom NSA1045's 4 keys keypad
  72
  73           New profiles can be described in the driver source. The driver also
  74           supports simultaneous keys pressed when the keypad supports them.
  75
  76 config PANEL_LCD
  77         depends on PANEL && PANEL_PROFILE="0"
  78         int "LCD type (0=none, 1=custom, 2=old //, 3=ks0074, 4=hantronix, 5=Nexcom)"
  79         range 0 5
  80         default 0
  81         ---help---
  82            This enables and configures an LCD connected to the parallel port.
  83            The driver includes an interpreter for escape codes starting with
  84            '\e[L' which are specific to the LCD, and a few ANSI codes. The
  85            driver will be registered as character device 10,156, usually
  86            under the name '/dev/lcd'. There are a total of 6 supported types :
  87
  88              0 : do not enable the driver
  89              1 : custom configuration and wiring (see further)
  90              2 : 2x16 & 2x40 parallel LCD (old wiring)
  91              3 : 2x16 serial LCD (KS-0074 based)
  92              4 : 2x16 parallel LCD (Hantronix wiring)
  93              5 : 2x16 parallel LCD (Nexcom wiring)
  94
  95            When type '1' is specified, other options will appear to configure
  96            more precise aspects (wiring, dimensions, protocol, ...). Please note
  97            that those values changed from the 2.4 driver for better consistency.
  98
  99 config PANEL_LCD_HEIGHT
 100         depends on PANEL && PANEL_PROFILE="0" && PANEL_LCD="1"
 101         int "Number of lines on the LCD (1-2)"
 102         range 1 2
 103         default 2
 104         ---help---
 105           This is the number of visible character lines on the LCD in custom profile.
 106           It can either be 1 or 2.
 107
 108 config PANEL_LCD_WIDTH
 109         depends on PANEL && PANEL_PROFILE="0" && PANEL_LCD="1"
 110         int "Number of characters per line on the LCD (1-40)"
 111         range 1 40
 112         default 40
 113         ---help---
 114           This is the number of characters per line on the LCD in custom profile.
 115           Common values are 16,20,24,40.
 116
 117 config PANEL_LCD_BWIDTH
 118         depends on PANEL && PANEL_PROFILE="0" && PANEL_LCD="1"
 119         int "Internal LCD line width (1-40, 40 by default)"
 120         range 1 40
 121         default 40
 122         ---help---
 123           Most LCDs use a standard controller which supports hardware lines of 40
 124           characters, although sometimes only 16, 20 or 24 of them are really wired
 125           to the terminal. This results in some non-visible but adressable characters,
 126           and is the case for most parallel LCDs. Other LCDs, and some serial ones,
 127           however, use the same line width internally as what is visible. The KS0074
 128           for example, uses 16 characters per line for 16 visible characters per line.
 129
 130           This option lets you configure the value used by your LCD in 'custom' profile.
 131           If you don't know, put '40' here.
 132
 133 config PANEL_LCD_HWIDTH
 134         depends on PANEL && PANEL_PROFILE="0" && PANEL_LCD="1"
 135         int "Hardware LCD line width (1-64, 64 by default)"
 136         range 1 64
 137         default 64
 138         ---help---
 139           Most LCDs use a single address bit to differentiate line 0 and line 1. Since
 140           some of them need to be able to address 40 chars with the lower bits, they
 141           often use the immediately superior power of 2, which is 64, to address the
 142           next line.
 143
 144           If you don't know what your LCD uses, in doubt let 16 here for a 2x16, and
 145           64 here for a 2x40.
 146
 147 config PANEL_LCD_CHARSET
 148         depends on PANEL && PANEL_PROFILE="0" && PANEL_LCD="1"
 149         int "LCD character set (0=normal, 1=KS0074)"
 150         range 0 1
 151         default 0
 152         ---help---
 153           Some controllers such as the KS0074 use a somewhat strange character set
 154           where many symbols are at unusual places. The driver knows how to map
 155           'standard' ASCII characters to the character sets used by these controllers.
 156           Valid values are :
 157
 158              0 : normal (untranslated) character set
 159              1 : KS0074 character set
 160
 161           If you don't know, use the normal one (0).
 162
 163 config PANEL_LCD_PROTO
 164         depends on PANEL && PANEL_PROFILE="0" && PANEL_LCD="1"
 165         int "LCD communication mode (0=parallel 8 bits, 1=serial)"
 166         range 0 1
 167         default 0
 168         ---help---
 169           This driver now supports any serial or parallel LCD wired to a parallel
 170           port. But before assigning signals, the driver needs to know if it will
 171           be driving a serial LCD or a parallel one. Serial LCDs only use 2 wires
 172           (SDA/SCL), while parallel ones use 2 or 3 wires for the control signals
 173           (E, RS, sometimes RW), and 4 or 8 for the data. Use 0 here for a 8 bits
 174           parallel LCD, and 1 for a serial LCD.
 175
 176 config PANEL_LCD_PIN_E
 177         depends on PANEL && PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO="0"
 178         int "Parallel port pin number & polarity connected to the LCD E signal (-17...17) "
 179         range -17 17
 180         default 14
 181         ---help---
 182           This describes the number of the parallel port pin to which the LCD 'E'
 183           signal has been connected. It can be :
 184
 185                   0 : no connection (eg: connected to ground)
 186               1..17 : directly connected to any of these pins on the DB25 plug
 187             -1..-17 : connected to the same pin through an inverter (eg: transistor).
 188
 189           Default for the 'E' pin in custom profile is '14' (AUTOFEED).
 190
 191 config PANEL_LCD_PIN_RS
 192         depends on PANEL && PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO="0"
 193         int "Parallel port pin number & polarity connected to the LCD RS signal (-17...17) "
 194         range -17 17
 195         default 17
 196         ---help---
 197           This describes the number of the parallel port pin to which the LCD 'RS'
 198           signal has been connected. It can be :
 199
 200                   0 : no connection (eg: connected to ground)
 201               1..17 : directly connected to any of these pins on the DB25 plug
 202             -1..-17 : connected to the same pin through an inverter (eg: transistor).
 203
 204           Default for the 'RS' pin in custom profile is '17' (SELECT IN).
 205
 206 config PANEL_LCD_PIN_RW
 207         depends on PANEL && PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO="0"
 208         int "Parallel port pin number & polarity connected to the LCD RW signal (-17...17) "
 209         range -17 17
 210         default 16
 211         ---help---
 212           This describes the number of the parallel port pin to which the LCD 'RW'
 213           signal has been connected. It can be :
 214
 215                   0 : no connection (eg: connected to ground)
 216               1..17 : directly connected to any of these pins on the DB25 plug
 217             -1..-17 : connected to the same pin through an inverter (eg: transistor).
 218
 219           Default for the 'RW' pin in custom profile is '16' (INIT).
 220
 221 config PANEL_LCD_PIN_SCL
 222         depends on PANEL && PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO!="0"
 223         int "Parallel port pin number & polarity connected to the LCD SCL signal (-17...17) "
 224         range -17 17
 225         default 1
 226         ---help---
 227           This describes the number of the parallel port pin to which the serial
 228           LCD 'SCL' signal has been connected. It can be :
 229
 230                   0 : no connection (eg: connected to ground)
 231               1..17 : directly connected to any of these pins on the DB25 plug
 232             -1..-17 : connected to the same pin through an inverter (eg: transistor).
 233
 234           Default for the 'SCL' pin in custom profile is '1' (STROBE).
 235
 236 config PANEL_LCD_PIN_SDA
 237         depends on PANEL && PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO!="0"
 238         int "Parallel port pin number & polarity connected to the LCD SDA signal (-17...17) "
 239         range -17 17
 240         default 2
 241         ---help---
 242           This describes the number of the parallel port pin to which the serial
 243           LCD 'SDA' signal has been connected. It can be :
 244
 245                   0 : no connection (eg: connected to ground)
 246               1..17 : directly connected to any of these pins on the DB25 plug
 247             -1..-17 : connected to the same pin through an inverter (eg: transistor).
 248
 249           Default for the 'SDA' pin in custom profile is '2' (D0).
 250
 251 config PANEL_LCD_PIN_BL
 252         depends on PANEL && PANEL_PROFILE="0" && PANEL_LCD="1"
 253         int "Parallel port pin number & polarity connected to the LCD backlight signal (-17...17) "
 254         range -17 17
 255         default 0
 256         ---help---
 257           This describes the number of the parallel port pin to which the LCD 'BL' signal
 258           has been connected. It can be :
 259
 260                   0 : no connection (eg: connected to ground)
 261               1..17 : directly connected to any of these pins on the DB25 plug
 262             -1..-17 : connected to the same pin through an inverter (eg: transistor).
 263
 264           Default for the 'BL' pin in custom profile is '0' (uncontrolled).
 265
 266 config PANEL_CHANGE_MESSAGE
 267         depends on PANEL
 268         bool "Change LCD initialization message ?"
 269         default "n"
 270         ---help---
 271           This allows you to replace the boot message indicating the kernel version
 272           and the driver version with a custom message. This is useful on appliances
 273           where a simple 'Starting system' message can be enough to stop a customer
 274           from worrying.
 275
 276           If you say 'Y' here, you'll be able to choose a message yourself. Otherwise,
 277           say 'N' and keep the default message with the version.
 278
 279 config PANEL_BOOT_MESSAGE
 280         depends on PANEL && PANEL_CHANGE_MESSAGE="y"
 281         string "New initialization message"
 282         default ""
 283         ---help---
 284           This allows you to replace the boot message indicating the kernel version
 285           and the driver version with a custom message. This is useful on appliances
 286           where a simple 'Starting system' message can be enough to stop a customer
 287           from worrying.
 288
 289           An empty message will only clear the display at driver init time. Any other
 290           printf()-formatted message is valid with newline and escape codes.