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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 |