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Miguel Ojeda Sandonis70e84042007-02-10 01:44:32 -08001#
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
Jan Engelhardtf5920962007-07-15 23:39:26 -07008menuconfig AUXDISPLAY
Martin Schwidefskyeeca7a32007-05-10 15:45:56 +02009 depends on PARPORT
Jan Engelhardtf5920962007-07-15 23:39:26 -070010 bool "Auxiliary Display support"
Jan Engelhardt06bfb7e2007-08-18 12:56:21 +020011 ---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.
Jan Engelhardtf5920962007-07-15 23:39:26 -070016
17if AUXDISPLAY && PARPORT
Miguel Ojeda Sandonis70e84042007-02-10 01:44:32 -080018
19config 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
37config 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
59config 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
Miguel Ojeda450c6222008-07-04 09:59:33 -070067 If your LCD seems to miss random writings, increment this.
Miguel Ojeda Sandonis70e84042007-02-10 01:44:32 -080068
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
74config CFAG12864B
75 tristate "CFAG12864B LCD"
76 depends on X86
77 depends on FB
78 depends on KS0108
Avuton Olrichbfeeffb2007-06-01 00:46:45 -070079 select FB_SYS_FILLRECT
80 select FB_SYS_COPYAREA
81 select FB_SYS_IMAGEBLIT
82 select FB_SYS_FOPS
Miguel Ojeda Sandonis70e84042007-02-10 01:44:32 -080083 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
102config 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.
Jan Engelhardtf5920962007-07-15 23:39:26 -0700122
123endif # AUXDISPLAY