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b2441318 | 1 | # SPDX-License-Identifier: GPL-2.0 |
70e84049 MOS |
2 | # |
3 | # For a description of the syntax of this configuration file, | |
4 | # see Documentation/kbuild/kconfig-language.txt. | |
5 | # | |
6 | # Auxiliary display drivers configuration. | |
7 | # | |
8 | ||
f5920969 | 9 | menuconfig AUXDISPLAY |
f5920969 | 10 | bool "Auxiliary Display support" |
06bfb7eb JE |
11 | ---help--- |
12 | Say Y here to get to see options for auxiliary display drivers. | |
13 | This option alone does not add any kernel code. | |
14 | ||
15 | If you say N, all options in this submenu will be skipped and disabled. | |
f5920969 | 16 | |
c0aa24ba | 17 | if AUXDISPLAY |
70e84049 | 18 | |
d47d8836 GU |
19 | config HD44780 |
20 | tristate "HD44780 Character LCD support" | |
21 | depends on GPIOLIB || COMPILE_TEST | |
22 | select CHARLCD | |
23 | ---help--- | |
24 | Enable support for Character LCDs using a HD44780 controller. | |
25 | The LCD is accessible through the /dev/lcd char device (10, 156). | |
26 | This code can either be compiled as a module, or linked into the | |
27 | kernel and started at boot. | |
28 | If you don't understand what all this is about, say N. | |
29 | ||
70e84049 MOS |
30 | config KS0108 |
31 | tristate "KS0108 LCD Controller" | |
32 | depends on PARPORT_PC | |
33 | default n | |
34 | ---help--- | |
35 | If you have a LCD controlled by one or more KS0108 | |
36 | controllers, say Y. You will need also another more specific | |
37 | driver for your LCD. | |
38 | ||
39 | Depends on Parallel Port support. If you say Y at | |
40 | parport, you will be able to compile this as a module (M) | |
41 | and built-in as well (Y). | |
42 | ||
43 | To compile this as a module, choose M here: | |
44 | the module will be called ks0108. | |
45 | ||
46 | If unsure, say N. | |
47 | ||
48 | config KS0108_PORT | |
49 | hex "Parallel port where the LCD is connected" | |
50 | depends on KS0108 | |
51 | default 0x378 | |
52 | ---help--- | |
53 | The address of the parallel port where the LCD is connected. | |
54 | ||
55 | The first standard parallel port address is 0x378. | |
56 | The second standard parallel port address is 0x278. | |
57 | The third standard parallel port address is 0x3BC. | |
58 | ||
59 | You can specify a different address if you need. | |
60 | ||
61 | If you don't know what I'm talking about, load the parport module, | |
62 | and execute "dmesg" or "cat /proc/ioports". You can see there how | |
63 | many parallel ports are present and which address each one has. | |
64 | ||
65 | Usually you only need to use 0x378. | |
66 | ||
67 | If you compile this as a module, you can still override this | |
68 | using the module parameters. | |
69 | ||
70 | config KS0108_DELAY | |
71 | int "Delay between each control writing (microseconds)" | |
72 | depends on KS0108 | |
73 | default "2" | |
74 | ---help--- | |
75 | Amount of time the ks0108 should wait between each control write | |
76 | to the parallel port. | |
77 | ||
450c622e | 78 | If your LCD seems to miss random writings, increment this. |
70e84049 MOS |
79 | |
80 | If you don't know what I'm talking about, ignore it. | |
81 | ||
82 | If you compile this as a module, you can still override this | |
83 | value using the module parameters. | |
84 | ||
85 | config CFAG12864B | |
86 | tristate "CFAG12864B LCD" | |
87 | depends on X86 | |
88 | depends on FB | |
89 | depends on KS0108 | |
bfeeffbb AO |
90 | select FB_SYS_FILLRECT |
91 | select FB_SYS_COPYAREA | |
92 | select FB_SYS_IMAGEBLIT | |
93 | select FB_SYS_FOPS | |
70e84049 MOS |
94 | default n |
95 | ---help--- | |
96 | If you have a Crystalfontz 128x64 2-color LCD, cfag12864b Series, | |
97 | say Y. You also need the ks0108 LCD Controller driver. | |
98 | ||
99 | For help about how to wire your LCD to the parallel port, | |
100 | check Documentation/auxdisplay/cfag12864b | |
101 | ||
102 | Depends on the x86 arch and the framebuffer support. | |
103 | ||
104 | The LCD framebuffer driver can be attached to a console. | |
105 | It will work fine. However, you can't attach it to the fbdev driver | |
106 | of the xorg server. | |
107 | ||
108 | To compile this as a module, choose M here: | |
109 | the modules will be called cfag12864b and cfag12864bfb. | |
110 | ||
111 | If unsure, say N. | |
112 | ||
113 | config CFAG12864B_RATE | |
114 | int "Refresh rate (hertz)" | |
115 | depends on CFAG12864B | |
116 | default "20" | |
117 | ---help--- | |
118 | Refresh rate of the LCD. | |
119 | ||
120 | As the LCD is not memory mapped, the driver has to make the work by | |
121 | software. This means you should be careful setting this value higher. | |
122 | If your CPUs are really slow or you feel the system is slowed down, | |
123 | decrease the value. | |
124 | ||
125 | Be careful modifying this value to a very high value: | |
126 | You can freeze the computer, or the LCD maybe can't draw as fast as you | |
127 | are requesting. | |
128 | ||
129 | If you don't know what I'm talking about, ignore it. | |
130 | ||
131 | If you compile this as a module, you can still override this | |
132 | value using the module parameters. | |
f5920969 | 133 | |
0cad855f PB |
134 | config IMG_ASCII_LCD |
135 | tristate "Imagination Technologies ASCII LCD Display" | |
141cbfba | 136 | depends on HAS_IOMEM |
0186a092 | 137 | default y if MIPS_MALTA |
aa9d87bd | 138 | select MFD_SYSCON |
0cad855f PB |
139 | help |
140 | Enable this to support the simple ASCII LCD displays found on | |
141 | development boards such as the MIPS Boston, MIPS Malta & MIPS SEAD3 | |
142 | from Imagination Technologies. | |
143 | ||
8992da44 RG |
144 | config HT16K33 |
145 | tristate "Holtek Ht16K33 LED controller with keyscan" | |
146 | depends on FB && OF && I2C && INPUT | |
31114fa9 | 147 | select FB_SYS_FOPS |
546cf3ef RD |
148 | select FB_SYS_FILLRECT |
149 | select FB_SYS_COPYAREA | |
150 | select FB_SYS_IMAGEBLIT | |
8992da44 RG |
151 | select INPUT_MATRIXKMAP |
152 | select FB_BACKLIGHT | |
153 | help | |
154 | Say yes here to add support for Holtek HT16K33, RAM mapping 16*8 | |
155 | LED controller driver with keyscan. | |
156 | ||
00846a44 AS |
157 | config ARM_CHARLCD |
158 | bool "ARM Ltd. Character LCD Driver" | |
159 | depends on PLAT_VERSATILE | |
160 | help | |
161 | This is a driver for the character LCD found on the ARM Ltd. | |
162 | Versatile and RealView Platform Baseboards. It doesn't do | |
163 | very much more than display the text "ARM Linux" on the first | |
164 | line and the Linux version on the second line, but that's | |
165 | still useful. | |
166 | ||
b5b903fb RD |
167 | endif # AUXDISPLAY |
168 | ||
8e2c3f17 | 169 | menuconfig PANEL |
51c1e9b5 AS |
170 | tristate "Parallel port LCD/Keypad Panel support" |
171 | depends on PARPORT | |
172 | select CHARLCD | |
173 | ---help--- | |
174 | Say Y here if you have an HD44780 or KS-0074 LCD connected to your | |
175 | parallel port. This driver also features 4 and 6-key keypads. The LCD | |
176 | is accessible through the /dev/lcd char device (10, 156), and the | |
177 | keypad through /dev/keypad (10, 185). This code can either be | |
178 | compiled as a module, or linked into the kernel and started at boot. | |
179 | If you don't understand what all this is about, say N. | |
180 | ||
181 | if PANEL | |
182 | ||
183 | config PANEL_PARPORT | |
184 | int "Default parallel port number (0=LPT1)" | |
185 | range 0 255 | |
186 | default "0" | |
187 | ---help--- | |
188 | This is the index of the parallel port the panel is connected to. One | |
189 | driver instance only supports one parallel port, so if your keypad | |
190 | and LCD are connected to two separate ports, you have to start two | |
191 | modules with different arguments. Numbering starts with '0' for LPT1, | |
192 | and so on. | |
193 | ||
194 | config PANEL_PROFILE | |
195 | int "Default panel profile (0-5, 0=custom)" | |
196 | range 0 5 | |
197 | default "5" | |
198 | ---help--- | |
199 | To ease configuration, the driver supports different configuration | |
200 | profiles for past and recent wirings. These profiles can also be | |
201 | used to define an approximative configuration, completed by a few | |
202 | other options. Here are the profiles : | |
203 | ||
204 | 0 = custom (see further) | |
205 | 1 = 2x16 parallel LCD, old keypad | |
206 | 2 = 2x16 serial LCD (KS-0074), new keypad | |
207 | 3 = 2x16 parallel LCD (Hantronix), no keypad | |
208 | 4 = 2x16 parallel LCD (Nexcom NSA1045) with Nexcom's keypad | |
209 | 5 = 2x40 parallel LCD (old one), with old keypad | |
210 | ||
211 | Custom configurations allow you to define how your display is | |
212 | wired to the parallel port, and how it works. This is only intended | |
213 | for experts. | |
214 | ||
215 | config PANEL_KEYPAD | |
216 | depends on PANEL_PROFILE="0" | |
217 | int "Keypad type (0=none, 1=old 6 keys, 2=new 6 keys, 3=Nexcom 4 keys)" | |
218 | range 0 3 | |
219 | default 0 | |
220 | ---help--- | |
221 | This enables and configures a keypad connected to the parallel port. | |
222 | The keys will be read from character device 10,185. Valid values are : | |
223 | ||
224 | 0 : do not enable this driver | |
225 | 1 : old 6 keys keypad | |
226 | 2 : new 6 keys keypad, as used on the server at www.ant-computing.com | |
227 | 3 : Nexcom NSA1045's 4 keys keypad | |
228 | ||
229 | New profiles can be described in the driver source. The driver also | |
230 | supports simultaneous keys pressed when the keypad supports them. | |
231 | ||
232 | config PANEL_LCD | |
233 | depends on PANEL_PROFILE="0" | |
234 | int "LCD type (0=none, 1=custom, 2=old //, 3=ks0074, 4=hantronix, 5=Nexcom)" | |
235 | range 0 5 | |
236 | default 0 | |
237 | ---help--- | |
238 | This enables and configures an LCD connected to the parallel port. | |
239 | The driver includes an interpreter for escape codes starting with | |
240 | '\e[L' which are specific to the LCD, and a few ANSI codes. The | |
241 | driver will be registered as character device 10,156, usually | |
242 | under the name '/dev/lcd'. There are a total of 6 supported types : | |
243 | ||
244 | 0 : do not enable the driver | |
245 | 1 : custom configuration and wiring (see further) | |
246 | 2 : 2x16 & 2x40 parallel LCD (old wiring) | |
247 | 3 : 2x16 serial LCD (KS-0074 based) | |
248 | 4 : 2x16 parallel LCD (Hantronix wiring) | |
249 | 5 : 2x16 parallel LCD (Nexcom wiring) | |
250 | ||
251 | When type '1' is specified, other options will appear to configure | |
252 | more precise aspects (wiring, dimensions, protocol, ...). Please note | |
253 | that those values changed from the 2.4 driver for better consistency. | |
254 | ||
255 | config PANEL_LCD_HEIGHT | |
256 | depends on PANEL_PROFILE="0" && PANEL_LCD="1" | |
257 | int "Number of lines on the LCD (1-2)" | |
258 | range 1 2 | |
259 | default 2 | |
260 | ---help--- | |
261 | This is the number of visible character lines on the LCD in custom profile. | |
262 | It can either be 1 or 2. | |
263 | ||
264 | config PANEL_LCD_WIDTH | |
265 | depends on PANEL_PROFILE="0" && PANEL_LCD="1" | |
266 | int "Number of characters per line on the LCD (1-40)" | |
267 | range 1 40 | |
268 | default 40 | |
269 | ---help--- | |
270 | This is the number of characters per line on the LCD in custom profile. | |
271 | Common values are 16,20,24,40. | |
272 | ||
273 | config PANEL_LCD_BWIDTH | |
274 | depends on PANEL_PROFILE="0" && PANEL_LCD="1" | |
275 | int "Internal LCD line width (1-40, 40 by default)" | |
276 | range 1 40 | |
277 | default 40 | |
278 | ---help--- | |
279 | Most LCDs use a standard controller which supports hardware lines of 40 | |
280 | characters, although sometimes only 16, 20 or 24 of them are really wired | |
281 | to the terminal. This results in some non-visible but addressable characters, | |
282 | and is the case for most parallel LCDs. Other LCDs, and some serial ones, | |
283 | however, use the same line width internally as what is visible. The KS0074 | |
284 | for example, uses 16 characters per line for 16 visible characters per line. | |
285 | ||
286 | This option lets you configure the value used by your LCD in 'custom' profile. | |
287 | If you don't know, put '40' here. | |
288 | ||
289 | config PANEL_LCD_HWIDTH | |
290 | depends on PANEL_PROFILE="0" && PANEL_LCD="1" | |
291 | int "Hardware LCD line width (1-64, 64 by default)" | |
292 | range 1 64 | |
293 | default 64 | |
294 | ---help--- | |
295 | Most LCDs use a single address bit to differentiate line 0 and line 1. Since | |
296 | some of them need to be able to address 40 chars with the lower bits, they | |
297 | often use the immediately superior power of 2, which is 64, to address the | |
298 | next line. | |
299 | ||
300 | If you don't know what your LCD uses, in doubt let 16 here for a 2x16, and | |
301 | 64 here for a 2x40. | |
302 | ||
303 | config PANEL_LCD_CHARSET | |
304 | depends on PANEL_PROFILE="0" && PANEL_LCD="1" | |
305 | int "LCD character set (0=normal, 1=KS0074)" | |
306 | range 0 1 | |
307 | default 0 | |
308 | ---help--- | |
309 | Some controllers such as the KS0074 use a somewhat strange character set | |
310 | where many symbols are at unusual places. The driver knows how to map | |
311 | 'standard' ASCII characters to the character sets used by these controllers. | |
312 | Valid values are : | |
313 | ||
314 | 0 : normal (untranslated) character set | |
315 | 1 : KS0074 character set | |
316 | ||
317 | If you don't know, use the normal one (0). | |
318 | ||
319 | config PANEL_LCD_PROTO | |
320 | depends on PANEL_PROFILE="0" && PANEL_LCD="1" | |
321 | int "LCD communication mode (0=parallel 8 bits, 1=serial)" | |
322 | range 0 1 | |
323 | default 0 | |
324 | ---help--- | |
325 | This driver now supports any serial or parallel LCD wired to a parallel | |
326 | port. But before assigning signals, the driver needs to know if it will | |
327 | be driving a serial LCD or a parallel one. Serial LCDs only use 2 wires | |
328 | (SDA/SCL), while parallel ones use 2 or 3 wires for the control signals | |
329 | (E, RS, sometimes RW), and 4 or 8 for the data. Use 0 here for a 8 bits | |
330 | parallel LCD, and 1 for a serial LCD. | |
331 | ||
332 | config PANEL_LCD_PIN_E | |
333 | depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO="0" | |
334 | int "Parallel port pin number & polarity connected to the LCD E signal (-17...17) " | |
335 | range -17 17 | |
336 | default 14 | |
337 | ---help--- | |
338 | This describes the number of the parallel port pin to which the LCD 'E' | |
339 | signal has been connected. It can be : | |
340 | ||
341 | 0 : no connection (eg: connected to ground) | |
342 | 1..17 : directly connected to any of these pins on the DB25 plug | |
343 | -1..-17 : connected to the same pin through an inverter (eg: transistor). | |
344 | ||
345 | Default for the 'E' pin in custom profile is '14' (AUTOFEED). | |
346 | ||
347 | config PANEL_LCD_PIN_RS | |
348 | depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO="0" | |
349 | int "Parallel port pin number & polarity connected to the LCD RS signal (-17...17) " | |
350 | range -17 17 | |
351 | default 17 | |
352 | ---help--- | |
353 | This describes the number of the parallel port pin to which the LCD 'RS' | |
354 | signal has been connected. It can be : | |
355 | ||
356 | 0 : no connection (eg: connected to ground) | |
357 | 1..17 : directly connected to any of these pins on the DB25 plug | |
358 | -1..-17 : connected to the same pin through an inverter (eg: transistor). | |
359 | ||
360 | Default for the 'RS' pin in custom profile is '17' (SELECT IN). | |
361 | ||
362 | config PANEL_LCD_PIN_RW | |
363 | depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO="0" | |
364 | int "Parallel port pin number & polarity connected to the LCD RW signal (-17...17) " | |
365 | range -17 17 | |
366 | default 16 | |
367 | ---help--- | |
368 | This describes the number of the parallel port pin to which the LCD 'RW' | |
369 | signal has been connected. It can be : | |
370 | ||
371 | 0 : no connection (eg: connected to ground) | |
372 | 1..17 : directly connected to any of these pins on the DB25 plug | |
373 | -1..-17 : connected to the same pin through an inverter (eg: transistor). | |
374 | ||
375 | Default for the 'RW' pin in custom profile is '16' (INIT). | |
376 | ||
377 | config PANEL_LCD_PIN_SCL | |
378 | depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO!="0" | |
379 | int "Parallel port pin number & polarity connected to the LCD SCL signal (-17...17) " | |
380 | range -17 17 | |
381 | default 1 | |
382 | ---help--- | |
383 | This describes the number of the parallel port pin to which the serial | |
384 | LCD 'SCL' signal has been connected. It can be : | |
385 | ||
386 | 0 : no connection (eg: connected to ground) | |
387 | 1..17 : directly connected to any of these pins on the DB25 plug | |
388 | -1..-17 : connected to the same pin through an inverter (eg: transistor). | |
389 | ||
390 | Default for the 'SCL' pin in custom profile is '1' (STROBE). | |
391 | ||
392 | config PANEL_LCD_PIN_SDA | |
393 | depends on PANEL_PROFILE="0" && PANEL_LCD="1" && PANEL_LCD_PROTO!="0" | |
394 | int "Parallel port pin number & polarity connected to the LCD SDA signal (-17...17) " | |
395 | range -17 17 | |
396 | default 2 | |
397 | ---help--- | |
398 | This describes the number of the parallel port pin to which the serial | |
399 | LCD 'SDA' signal has been connected. It can be : | |
400 | ||
401 | 0 : no connection (eg: connected to ground) | |
402 | 1..17 : directly connected to any of these pins on the DB25 plug | |
403 | -1..-17 : connected to the same pin through an inverter (eg: transistor). | |
404 | ||
405 | Default for the 'SDA' pin in custom profile is '2' (D0). | |
406 | ||
407 | config PANEL_LCD_PIN_BL | |
408 | depends on PANEL_PROFILE="0" && PANEL_LCD="1" | |
409 | int "Parallel port pin number & polarity connected to the LCD backlight signal (-17...17) " | |
410 | range -17 17 | |
411 | default 0 | |
412 | ---help--- | |
413 | This describes the number of the parallel port pin to which the LCD 'BL' signal | |
414 | has been connected. It can be : | |
415 | ||
416 | 0 : no connection (eg: connected to ground) | |
417 | 1..17 : directly connected to any of these pins on the DB25 plug | |
418 | -1..-17 : connected to the same pin through an inverter (eg: transistor). | |
419 | ||
420 | Default for the 'BL' pin in custom profile is '0' (uncontrolled). | |
421 | ||
422 | config PANEL_CHANGE_MESSAGE | |
423 | bool "Change LCD initialization message ?" | |
424 | default "n" | |
425 | ---help--- | |
426 | This allows you to replace the boot message indicating the kernel version | |
427 | and the driver version with a custom message. This is useful on appliances | |
428 | where a simple 'Starting system' message can be enough to stop a customer | |
429 | from worrying. | |
430 | ||
431 | If you say 'Y' here, you'll be able to choose a message yourself. Otherwise, | |
432 | say 'N' and keep the default message with the version. | |
433 | ||
434 | config PANEL_BOOT_MESSAGE | |
435 | depends on PANEL_CHANGE_MESSAGE="y" | |
436 | string "New initialization message" | |
437 | default "" | |
438 | ---help--- | |
439 | This allows you to replace the boot message indicating the kernel version | |
440 | and the driver version with a custom message. This is useful on appliances | |
441 | where a simple 'Starting system' message can be enough to stop a customer | |
442 | from worrying. | |
443 | ||
444 | An empty message will only clear the display at driver init time. Any other | |
445 | printf()-formatted message is valid with newline and escape codes. | |
446 | ||
447 | endif # PANEL | |
b5b903fb RD |
448 | |
449 | config CHARLCD | |
450 | tristate "Character LCD core support" if COMPILE_TEST |