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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 |
eeca7a36 | 9 | depends on PARPORT |
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. | |
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16 | |
17 | if AUXDISPLAY && PARPORT | |
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18 | |
19 | config KS0108 | |
20 | tristate "KS0108 LCD Controller" | |
21 | depends on PARPORT_PC | |
22 | default n | |
23 | ---help--- | |
24 | If you have a LCD controlled by one or more KS0108 | |
25 | controllers, say Y. You will need also another more specific | |
26 | driver for your LCD. | |
27 | ||
28 | Depends on Parallel Port support. If you say Y at | |
29 | parport, you will be able to compile this as a module (M) | |
30 | and built-in as well (Y). | |
31 | ||
32 | To compile this as a module, choose M here: | |
33 | the module will be called ks0108. | |
34 | ||
35 | If unsure, say N. | |
36 | ||
37 | config KS0108_PORT | |
38 | hex "Parallel port where the LCD is connected" | |
39 | depends on KS0108 | |
40 | default 0x378 | |
41 | ---help--- | |
42 | The address of the parallel port where the LCD is connected. | |
43 | ||
44 | The first standard parallel port address is 0x378. | |
45 | The second standard parallel port address is 0x278. | |
46 | The third standard parallel port address is 0x3BC. | |
47 | ||
48 | You can specify a different address if you need. | |
49 | ||
50 | If you don't know what I'm talking about, load the parport module, | |
51 | and execute "dmesg" or "cat /proc/ioports". You can see there how | |
52 | many parallel ports are present and which address each one has. | |
53 | ||
54 | Usually you only need to use 0x378. | |
55 | ||
56 | If you compile this as a module, you can still override this | |
57 | using the module parameters. | |
58 | ||
59 | config KS0108_DELAY | |
60 | int "Delay between each control writing (microseconds)" | |
61 | depends on KS0108 | |
62 | default "2" | |
63 | ---help--- | |
64 | Amount of time the ks0108 should wait between each control write | |
65 | to the parallel port. | |
66 | ||
67 | If your driver seems to miss random writings, increment this. | |
68 | ||
69 | If you don't know what I'm talking about, ignore it. | |
70 | ||
71 | If you compile this as a module, you can still override this | |
72 | value using the module parameters. | |
73 | ||
74 | config CFAG12864B | |
75 | tristate "CFAG12864B LCD" | |
76 | depends on X86 | |
77 | depends on FB | |
78 | depends on KS0108 | |
bfeeffbb AO |
79 | select FB_SYS_FILLRECT |
80 | select FB_SYS_COPYAREA | |
81 | select FB_SYS_IMAGEBLIT | |
82 | select FB_SYS_FOPS | |
70e84049 MOS |
83 | default n |
84 | ---help--- | |
85 | If you have a Crystalfontz 128x64 2-color LCD, cfag12864b Series, | |
86 | say Y. You also need the ks0108 LCD Controller driver. | |
87 | ||
88 | For help about how to wire your LCD to the parallel port, | |
89 | check Documentation/auxdisplay/cfag12864b | |
90 | ||
91 | Depends on the x86 arch and the framebuffer support. | |
92 | ||
93 | The LCD framebuffer driver can be attached to a console. | |
94 | It will work fine. However, you can't attach it to the fbdev driver | |
95 | of the xorg server. | |
96 | ||
97 | To compile this as a module, choose M here: | |
98 | the modules will be called cfag12864b and cfag12864bfb. | |
99 | ||
100 | If unsure, say N. | |
101 | ||
102 | config CFAG12864B_RATE | |
103 | int "Refresh rate (hertz)" | |
104 | depends on CFAG12864B | |
105 | default "20" | |
106 | ---help--- | |
107 | Refresh rate of the LCD. | |
108 | ||
109 | As the LCD is not memory mapped, the driver has to make the work by | |
110 | software. This means you should be careful setting this value higher. | |
111 | If your CPUs are really slow or you feel the system is slowed down, | |
112 | decrease the value. | |
113 | ||
114 | Be careful modifying this value to a very high value: | |
115 | You can freeze the computer, or the LCD maybe can't draw as fast as you | |
116 | are requesting. | |
117 | ||
118 | If you don't know what I'm talking about, ignore it. | |
119 | ||
120 | If you compile this as a module, you can still override this | |
121 | value using the module parameters. | |
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122 | |
123 | endif # AUXDISPLAY |