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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 JE |
10 | bool "Auxiliary Display support" |
11 | ||
12 | if AUXDISPLAY && PARPORT | |
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13 | |
14 | config KS0108 | |
15 | tristate "KS0108 LCD Controller" | |
16 | depends on PARPORT_PC | |
17 | default n | |
18 | ---help--- | |
19 | If you have a LCD controlled by one or more KS0108 | |
20 | controllers, say Y. You will need also another more specific | |
21 | driver for your LCD. | |
22 | ||
23 | Depends on Parallel Port support. If you say Y at | |
24 | parport, you will be able to compile this as a module (M) | |
25 | and built-in as well (Y). | |
26 | ||
27 | To compile this as a module, choose M here: | |
28 | the module will be called ks0108. | |
29 | ||
30 | If unsure, say N. | |
31 | ||
32 | config KS0108_PORT | |
33 | hex "Parallel port where the LCD is connected" | |
34 | depends on KS0108 | |
35 | default 0x378 | |
36 | ---help--- | |
37 | The address of the parallel port where the LCD is connected. | |
38 | ||
39 | The first standard parallel port address is 0x378. | |
40 | The second standard parallel port address is 0x278. | |
41 | The third standard parallel port address is 0x3BC. | |
42 | ||
43 | You can specify a different address if you need. | |
44 | ||
45 | If you don't know what I'm talking about, load the parport module, | |
46 | and execute "dmesg" or "cat /proc/ioports". You can see there how | |
47 | many parallel ports are present and which address each one has. | |
48 | ||
49 | Usually you only need to use 0x378. | |
50 | ||
51 | If you compile this as a module, you can still override this | |
52 | using the module parameters. | |
53 | ||
54 | config KS0108_DELAY | |
55 | int "Delay between each control writing (microseconds)" | |
56 | depends on KS0108 | |
57 | default "2" | |
58 | ---help--- | |
59 | Amount of time the ks0108 should wait between each control write | |
60 | to the parallel port. | |
61 | ||
62 | If your driver seems to miss random writings, increment this. | |
63 | ||
64 | If you don't know what I'm talking about, ignore it. | |
65 | ||
66 | If you compile this as a module, you can still override this | |
67 | value using the module parameters. | |
68 | ||
69 | config CFAG12864B | |
70 | tristate "CFAG12864B LCD" | |
71 | depends on X86 | |
72 | depends on FB | |
73 | depends on KS0108 | |
bfeeffbb AO |
74 | select FB_SYS_FILLRECT |
75 | select FB_SYS_COPYAREA | |
76 | select FB_SYS_IMAGEBLIT | |
77 | select FB_SYS_FOPS | |
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78 | default n |
79 | ---help--- | |
80 | If you have a Crystalfontz 128x64 2-color LCD, cfag12864b Series, | |
81 | say Y. You also need the ks0108 LCD Controller driver. | |
82 | ||
83 | For help about how to wire your LCD to the parallel port, | |
84 | check Documentation/auxdisplay/cfag12864b | |
85 | ||
86 | Depends on the x86 arch and the framebuffer support. | |
87 | ||
88 | The LCD framebuffer driver can be attached to a console. | |
89 | It will work fine. However, you can't attach it to the fbdev driver | |
90 | of the xorg server. | |
91 | ||
92 | To compile this as a module, choose M here: | |
93 | the modules will be called cfag12864b and cfag12864bfb. | |
94 | ||
95 | If unsure, say N. | |
96 | ||
97 | config CFAG12864B_RATE | |
98 | int "Refresh rate (hertz)" | |
99 | depends on CFAG12864B | |
100 | default "20" | |
101 | ---help--- | |
102 | Refresh rate of the LCD. | |
103 | ||
104 | As the LCD is not memory mapped, the driver has to make the work by | |
105 | software. This means you should be careful setting this value higher. | |
106 | If your CPUs are really slow or you feel the system is slowed down, | |
107 | decrease the value. | |
108 | ||
109 | Be careful modifying this value to a very high value: | |
110 | You can freeze the computer, or the LCD maybe can't draw as fast as you | |
111 | are requesting. | |
112 | ||
113 | If you don't know what I'm talking about, ignore it. | |
114 | ||
115 | If you compile this as a module, you can still override this | |
116 | value using the module parameters. | |
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117 | |
118 | endif # AUXDISPLAY |