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70e84049 MOS |
1 | # |
2 | # For a description of the syntax of this configuration file, | |
3 | # see Documentation/kbuild/kconfig-language.txt. | |
4 | # | |
5 | # Auxiliary display drivers configuration. | |
6 | # | |
7 | ||
f5920969 | 8 | menuconfig AUXDISPLAY |
f5920969 | 9 | bool "Auxiliary Display support" |
06bfb7eb JE |
10 | ---help--- |
11 | Say Y here to get to see options for auxiliary display drivers. | |
12 | This option alone does not add any kernel code. | |
13 | ||
14 | If you say N, all options in this submenu will be skipped and disabled. | |
f5920969 | 15 | |
39f8ea46 GU |
16 | config CHARLCD |
17 | tristate "Character LCD core support" if COMPILE_TEST | |
18 | ||
c0aa24ba | 19 | if AUXDISPLAY |
70e84049 | 20 | |
d47d8836 GU |
21 | config HD44780 |
22 | tristate "HD44780 Character LCD support" | |
23 | depends on GPIOLIB || COMPILE_TEST | |
24 | select CHARLCD | |
25 | ---help--- | |
26 | Enable support for Character LCDs using a HD44780 controller. | |
27 | The LCD is accessible through the /dev/lcd char device (10, 156). | |
28 | This code can either be compiled as a module, or linked into the | |
29 | kernel and started at boot. | |
30 | If you don't understand what all this is about, say N. | |
31 | ||
70e84049 MOS |
32 | config KS0108 |
33 | tristate "KS0108 LCD Controller" | |
34 | depends on PARPORT_PC | |
35 | default n | |
36 | ---help--- | |
37 | If you have a LCD controlled by one or more KS0108 | |
38 | controllers, say Y. You will need also another more specific | |
39 | driver for your LCD. | |
40 | ||
41 | Depends on Parallel Port support. If you say Y at | |
42 | parport, you will be able to compile this as a module (M) | |
43 | and built-in as well (Y). | |
44 | ||
45 | To compile this as a module, choose M here: | |
46 | the module will be called ks0108. | |
47 | ||
48 | If unsure, say N. | |
49 | ||
50 | config KS0108_PORT | |
51 | hex "Parallel port where the LCD is connected" | |
52 | depends on KS0108 | |
53 | default 0x378 | |
54 | ---help--- | |
55 | The address of the parallel port where the LCD is connected. | |
56 | ||
57 | The first standard parallel port address is 0x378. | |
58 | The second standard parallel port address is 0x278. | |
59 | The third standard parallel port address is 0x3BC. | |
60 | ||
61 | You can specify a different address if you need. | |
62 | ||
63 | If you don't know what I'm talking about, load the parport module, | |
64 | and execute "dmesg" or "cat /proc/ioports". You can see there how | |
65 | many parallel ports are present and which address each one has. | |
66 | ||
67 | Usually you only need to use 0x378. | |
68 | ||
69 | If you compile this as a module, you can still override this | |
70 | using the module parameters. | |
71 | ||
72 | config KS0108_DELAY | |
73 | int "Delay between each control writing (microseconds)" | |
74 | depends on KS0108 | |
75 | default "2" | |
76 | ---help--- | |
77 | Amount of time the ks0108 should wait between each control write | |
78 | to the parallel port. | |
79 | ||
450c622e | 80 | If your LCD seems to miss random writings, increment this. |
70e84049 MOS |
81 | |
82 | If you don't know what I'm talking about, ignore it. | |
83 | ||
84 | If you compile this as a module, you can still override this | |
85 | value using the module parameters. | |
86 | ||
87 | config CFAG12864B | |
88 | tristate "CFAG12864B LCD" | |
89 | depends on X86 | |
90 | depends on FB | |
91 | depends on KS0108 | |
bfeeffbb AO |
92 | select FB_SYS_FILLRECT |
93 | select FB_SYS_COPYAREA | |
94 | select FB_SYS_IMAGEBLIT | |
95 | select FB_SYS_FOPS | |
70e84049 MOS |
96 | default n |
97 | ---help--- | |
98 | If you have a Crystalfontz 128x64 2-color LCD, cfag12864b Series, | |
99 | say Y. You also need the ks0108 LCD Controller driver. | |
100 | ||
101 | For help about how to wire your LCD to the parallel port, | |
102 | check Documentation/auxdisplay/cfag12864b | |
103 | ||
104 | Depends on the x86 arch and the framebuffer support. | |
105 | ||
106 | The LCD framebuffer driver can be attached to a console. | |
107 | It will work fine. However, you can't attach it to the fbdev driver | |
108 | of the xorg server. | |
109 | ||
110 | To compile this as a module, choose M here: | |
111 | the modules will be called cfag12864b and cfag12864bfb. | |
112 | ||
113 | If unsure, say N. | |
114 | ||
115 | config CFAG12864B_RATE | |
116 | int "Refresh rate (hertz)" | |
117 | depends on CFAG12864B | |
118 | default "20" | |
119 | ---help--- | |
120 | Refresh rate of the LCD. | |
121 | ||
122 | As the LCD is not memory mapped, the driver has to make the work by | |
123 | software. This means you should be careful setting this value higher. | |
124 | If your CPUs are really slow or you feel the system is slowed down, | |
125 | decrease the value. | |
126 | ||
127 | Be careful modifying this value to a very high value: | |
128 | You can freeze the computer, or the LCD maybe can't draw as fast as you | |
129 | are requesting. | |
130 | ||
131 | If you don't know what I'm talking about, ignore it. | |
132 | ||
133 | If you compile this as a module, you can still override this | |
134 | value using the module parameters. | |
f5920969 | 135 | |
0cad855f PB |
136 | config IMG_ASCII_LCD |
137 | tristate "Imagination Technologies ASCII LCD Display" | |
138 | default y if MIPS_MALTA || MIPS_SEAD3 | |
139 | select SYSCON | |
140 | help | |
141 | Enable this to support the simple ASCII LCD displays found on | |
142 | development boards such as the MIPS Boston, MIPS Malta & MIPS SEAD3 | |
143 | from Imagination Technologies. | |
144 | ||
8992da44 RG |
145 | config HT16K33 |
146 | tristate "Holtek Ht16K33 LED controller with keyscan" | |
147 | depends on FB && OF && I2C && INPUT | |
31114fa9 | 148 | select FB_SYS_FOPS |
546cf3ef RD |
149 | select FB_SYS_FILLRECT |
150 | select FB_SYS_COPYAREA | |
151 | select FB_SYS_IMAGEBLIT | |
8992da44 RG |
152 | select INPUT_MATRIXKMAP |
153 | select FB_BACKLIGHT | |
154 | help | |
155 | Say yes here to add support for Holtek HT16K33, RAM mapping 16*8 | |
156 | LED controller driver with keyscan. | |
157 | ||
f5920969 | 158 | endif # AUXDISPLAY |
51c1e9b5 | 159 | |
00846a44 AS |
160 | config ARM_CHARLCD |
161 | bool "ARM Ltd. Character LCD Driver" | |
162 | depends on PLAT_VERSATILE | |
163 | help | |
164 | This is a driver for the character LCD found on the ARM Ltd. | |
165 | Versatile and RealView Platform Baseboards. It doesn't do | |
166 | very much more than display the text "ARM Linux" on the first | |
167 | line and the Linux version on the second line, but that's | |
168 | still useful. | |
169 | ||
51c1e9b5 AS |
170 | config PANEL |
171 | tristate "Parallel port LCD/Keypad Panel support" | |
172 | depends on PARPORT | |
173 | select CHARLCD | |
174 | ---help--- | |
175 | Say Y here if you have an HD44780 or KS-0074 LCD connected to your | |
176 | parallel port. This driver also features 4 and 6-key keypads. The LCD | |
177 | is accessible through the /dev/lcd char device (10, 156), and the | |
178 | keypad through /dev/keypad (10, 185). This code can either be | |
179 | compiled as a module, or linked into the kernel and started at boot. | |
180 | If you don't understand what all this is about, say N. | |
181 | ||
182 | if PANEL | |
183 | ||
184 | config PANEL_PARPORT | |
185 | int "Default parallel port number (0=LPT1)" | |
186 | range 0 255 | |
187 | default "0" | |
188 | ---help--- | |
189 | This is the index of the parallel port the panel is connected to. One | |
190 | driver instance only supports one parallel port, so if your keypad | |
191 | and LCD are connected to two separate ports, you have to start two | |
192 | modules with different arguments. Numbering starts with '0' for LPT1, | |
193 | and so on. | |
194 | ||
195 | config PANEL_PROFILE | |
196 | int "Default panel profile (0-5, 0=custom)" | |
197 | range 0 5 | |
198 | default "5" | |
199 | ---help--- | |
200 | To ease configuration, the driver supports different configuration | |
201 | profiles for past and recent wirings. These profiles can also be | |
202 | used to define an approximative configuration, completed by a few | |
203 | other options. Here are the profiles : | |
204 | ||
205 | 0 = custom (see further) | |
206 | 1 = 2x16 parallel LCD, old keypad | |
207 | 2 = 2x16 serial LCD (KS-0074), new keypad | |
208 | 3 = 2x16 parallel LCD (Hantronix), no keypad | |
209 | 4 = 2x16 parallel LCD (Nexcom NSA1045) with Nexcom's keypad | |
210 | 5 = 2x40 parallel LCD (old one), with old keypad | |
211 | ||
212 | Custom configurations allow you to define how your display is | |
213 | wired to the parallel port, and how it works. This is only intended | |
214 | for experts. | |
215 | ||
216 | config PANEL_KEYPAD | |
217 | depends on PANEL_PROFILE="0" | |
218 | int "Keypad type (0=none, 1=old 6 keys, 2=new 6 keys, 3=Nexcom 4 keys)" | |
219 | range 0 3 | |
220 | default 0 | |
221 | ---help--- | |
222 | This enables and configures a keypad connected to the parallel port. | |
223 | The keys will be read from character device 10,185. Valid values are : | |
224 | ||
225 | 0 : do not enable this driver | |
226 | 1 : old 6 keys keypad | |
227 | 2 : new 6 keys keypad, as used on the server at www.ant-computing.com | |
228 | 3 : Nexcom NSA1045's 4 keys keypad | |
229 | ||
230 | New profiles can be described in the driver source. The driver also | |
231 | supports simultaneous keys pressed when the keypad supports them. | |
232 | ||
233 | config PANEL_LCD | |
234 | depends on PANEL_PROFILE="0" | |
235 | int "LCD type (0=none, 1=custom, 2=old //, 3=ks0074, 4=hantronix, 5=Nexcom)" | |
236 | range 0 5 | |
237 | default 0 | |
238 | ---help--- | |
239 | This enables and configures an LCD connected to the parallel port. | |
240 | The driver includes an interpreter for escape codes starting with | |
241 | '\e[L' which are specific to the LCD, and a few ANSI codes. The | |
242 | driver will be registered as character device 10,156, usually | |
243 | under the name '/dev/lcd'. There are a total of 6 supported types : | |
244 | ||
245 | 0 : do not enable the driver | |
246 | 1 : custom configuration and wiring (see further) | |
247 | 2 : 2x16 & 2x40 parallel LCD (old wiring) | |
248 | 3 : 2x16 serial LCD (KS-0074 based) | |
249 | 4 : 2x16 parallel LCD (Hantronix wiring) | |
250 | 5 : 2x16 parallel LCD (Nexcom wiring) | |
251 | ||
252 | When type '1' is specified, other options will appear to configure | |
253 | more precise aspects (wiring, dimensions, protocol, ...). Please note | |
254 | that those values changed from the 2.4 driver for better consistency. | |
255 | ||
256 | config PANEL_LCD_HEIGHT | |
257 | depends on PANEL_PROFILE="0" && PANEL_LCD="1" | |
258 | int "Number of lines on the LCD (1-2)" | |
259 | range 1 2 | |
260 | default 2 | |
261 | ---help--- | |
262 | This is the number of visible character lines on the LCD in custom profile. | |
263 | It can either be 1 or 2. | |
264 | ||
265 | config PANEL_LCD_WIDTH | |
266 | depends on PANEL_PROFILE="0" && PANEL_LCD="1" | |
267 | int "Number of characters per line on the LCD (1-40)" | |
268 | range 1 40 | |
269 | default 40 | |
270 | ---help--- | |
271 | This is the number of characters per line on the LCD in custom profile. | |
272 | Common values are 16,20,24,40. | |
273 | ||
274 | config PANEL_LCD_BWIDTH | |
275 | depends on PANEL_PROFILE="0" && PANEL_LCD="1" | |
276 | int "Internal LCD line width (1-40, 40 by default)" | |
277 | range 1 40 | |
278 | default 40 | |
279 | ---help--- | |
280 | Most LCDs use a standard controller which supports hardware lines of 40 | |
281 | characters, although sometimes only 16, 20 or 24 of them are really wired | |
282 | to the terminal. This results in some non-visible but addressable characters, | |
283 | and is the case for most parallel LCDs. Other LCDs, and some serial ones, | |
284 | however, use the same line width internally as what is visible. The KS0074 | |
285 | for example, uses 16 characters per line for 16 visible characters per line. | |
286 | ||
287 | This option lets you configure the value used by your LCD in 'custom' profile. | |
288 | If you don't know, put '40' here. | |
289 | ||
290 | config PANEL_LCD_HWIDTH | |
291 | depends on PANEL_PROFILE="0" && PANEL_LCD="1" | |
292 | int "Hardware LCD line width (1-64, 64 by default)" | |
293 | range 1 64 | |
294 | default 64 | |
295 | ---help--- | |
296 | Most LCDs use a single address bit to differentiate line 0 and line 1. Since | |
297 | some of them need to be able to address 40 chars with the lower bits, they | |
298 | often use the immediately superior power of 2, which is 64, to address the | |
299 | next line. | |
300 | ||
301 | If you don't know what your LCD uses, in doubt let 16 here for a 2x16, and | |
302 | 64 here for a 2x40. | |
303 | ||
304 | config PANEL_LCD_CHARSET | |
305 | depends on PANEL_PROFILE="0" && PANEL_LCD="1" | |
306 | int "LCD character set (0=normal, 1=KS0074)" | |
307 | range 0 1 | |
308 | default 0 | |
309 | ---help--- | |
310 | Some controllers such as the KS0074 use a somewhat strange character set | |
311 | where many symbols are at unusual places. The driver knows how to map | |
312 | 'standard' ASCII characters to the character sets used by these controllers. | |
313 | Valid values are : | |
314 | ||
315 | 0 : normal (untranslated) character set | |
316 | 1 : KS0074 character set | |
317 | ||
318 | If you don't know, use the normal one (0). | |
319 | ||
320 | config PANEL_LCD_PROTO | |
321 | depends on PANEL_PROFILE="0" && PANEL_LCD="1" | |
322 | int "LCD communication mode (0=parallel 8 bits, 1=serial)" | |
323 | range 0 1 | |
324 | default 0 | |
325 | ---help--- | |
326 | This driver now supports any serial or parallel LCD wired to a parallel | |
327 | port. But before assigning signals, the driver needs to know if it will | |
328 | be driving a serial LCD or a parallel one. Serial LCDs only use 2 wires | |
329 | (SDA/SCL), while parallel ones use 2 or 3 wires for the control signals | |
330 | (E, RS, sometimes RW), and 4 or 8 for the data. Use 0 here for a 8 bits | |
331 | parallel LCD, and 1 for a serial LCD. | |
332 | ||
333 | config PANEL_LCD_PIN_E | |
334 | depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO="0" | |
335 | int "Parallel port pin number & polarity connected to the LCD E signal (-17...17) " | |
336 | range -17 17 | |
337 | default 14 | |
338 | ---help--- | |
339 | This describes the number of the parallel port pin to which the LCD 'E' | |
340 | signal has been connected. It can be : | |
341 | ||
342 | 0 : no connection (eg: connected to ground) | |
343 | 1..17 : directly connected to any of these pins on the DB25 plug | |
344 | -1..-17 : connected to the same pin through an inverter (eg: transistor). | |
345 | ||
346 | Default for the 'E' pin in custom profile is '14' (AUTOFEED). | |
347 | ||
348 | config PANEL_LCD_PIN_RS | |
349 | depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO="0" | |
350 | int "Parallel port pin number & polarity connected to the LCD RS signal (-17...17) " | |
351 | range -17 17 | |
352 | default 17 | |
353 | ---help--- | |
354 | This describes the number of the parallel port pin to which the LCD 'RS' | |
355 | signal has been connected. It can be : | |
356 | ||
357 | 0 : no connection (eg: connected to ground) | |
358 | 1..17 : directly connected to any of these pins on the DB25 plug | |
359 | -1..-17 : connected to the same pin through an inverter (eg: transistor). | |
360 | ||
361 | Default for the 'RS' pin in custom profile is '17' (SELECT IN). | |
362 | ||
363 | config PANEL_LCD_PIN_RW | |
364 | depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO="0" | |
365 | int "Parallel port pin number & polarity connected to the LCD RW signal (-17...17) " | |
366 | range -17 17 | |
367 | default 16 | |
368 | ---help--- | |
369 | This describes the number of the parallel port pin to which the LCD 'RW' | |
370 | signal has been connected. It can be : | |
371 | ||
372 | 0 : no connection (eg: connected to ground) | |
373 | 1..17 : directly connected to any of these pins on the DB25 plug | |
374 | -1..-17 : connected to the same pin through an inverter (eg: transistor). | |
375 | ||
376 | Default for the 'RW' pin in custom profile is '16' (INIT). | |
377 | ||
378 | config PANEL_LCD_PIN_SCL | |
379 | depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO!="0" | |
380 | int "Parallel port pin number & polarity connected to the LCD SCL signal (-17...17) " | |
381 | range -17 17 | |
382 | default 1 | |
383 | ---help--- | |
384 | This describes the number of the parallel port pin to which the serial | |
385 | LCD 'SCL' signal has been connected. It can be : | |
386 | ||
387 | 0 : no connection (eg: connected to ground) | |
388 | 1..17 : directly connected to any of these pins on the DB25 plug | |
389 | -1..-17 : connected to the same pin through an inverter (eg: transistor). | |
390 | ||
391 | Default for the 'SCL' pin in custom profile is '1' (STROBE). | |
392 | ||
393 | config PANEL_LCD_PIN_SDA | |
394 | depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO!="0" | |
395 | int "Parallel port pin number & polarity connected to the LCD SDA signal (-17...17) " | |
396 | range -17 17 | |
397 | default 2 | |
398 | ---help--- | |
399 | This describes the number of the parallel port pin to which the serial | |
400 | LCD 'SDA' signal has been connected. It can be : | |
401 | ||
402 | 0 : no connection (eg: connected to ground) | |
403 | 1..17 : directly connected to any of these pins on the DB25 plug | |
404 | -1..-17 : connected to the same pin through an inverter (eg: transistor). | |
405 | ||
406 | Default for the 'SDA' pin in custom profile is '2' (D0). | |
407 | ||
408 | config PANEL_LCD_PIN_BL | |
409 | depends on PANEL_PROFILE="0" && PANEL_LCD="1" | |
410 | int "Parallel port pin number & polarity connected to the LCD backlight signal (-17...17) " | |
411 | range -17 17 | |
412 | default 0 | |
413 | ---help--- | |
414 | This describes the number of the parallel port pin to which the LCD 'BL' signal | |
415 | has been connected. It can be : | |
416 | ||
417 | 0 : no connection (eg: connected to ground) | |
418 | 1..17 : directly connected to any of these pins on the DB25 plug | |
419 | -1..-17 : connected to the same pin through an inverter (eg: transistor). | |
420 | ||
421 | Default for the 'BL' pin in custom profile is '0' (uncontrolled). | |
422 | ||
423 | config PANEL_CHANGE_MESSAGE | |
424 | bool "Change LCD initialization message ?" | |
425 | default "n" | |
426 | ---help--- | |
427 | This allows you to replace the boot message indicating the kernel version | |
428 | and the driver version with a custom message. This is useful on appliances | |
429 | where a simple 'Starting system' message can be enough to stop a customer | |
430 | from worrying. | |
431 | ||
432 | If you say 'Y' here, you'll be able to choose a message yourself. Otherwise, | |
433 | say 'N' and keep the default message with the version. | |
434 | ||
435 | config PANEL_BOOT_MESSAGE | |
436 | depends on PANEL_CHANGE_MESSAGE="y" | |
437 | string "New initialization message" | |
438 | default "" | |
439 | ---help--- | |
440 | This allows you to replace the boot message indicating the kernel version | |
441 | and the driver version with a custom message. This is useful on appliances | |
442 | where a simple 'Starting system' message can be enough to stop a customer | |
443 | from worrying. | |
444 | ||
445 | An empty message will only clear the display at driver init time. Any other | |
446 | printf()-formatted message is valid with newline and escape codes. | |
447 | ||
448 | endif # PANEL |