diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/video/console/dummycon.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/video/console/dummycon.c')
-rw-r--r-- | drivers/video/console/dummycon.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c new file mode 100644 index 000000000000..1ecda91e5a9c --- /dev/null +++ b/drivers/video/console/dummycon.c | |||
@@ -0,0 +1,80 @@ | |||
1 | /* | ||
2 | * linux/drivers/video/dummycon.c -- A dummy console driver | ||
3 | * | ||
4 | * To be used if there's no other console driver (e.g. for plain VGA text) | ||
5 | * available, usually until fbcon takes console over. | ||
6 | */ | ||
7 | |||
8 | #include <linux/types.h> | ||
9 | #include <linux/kdev_t.h> | ||
10 | #include <linux/tty.h> | ||
11 | #include <linux/console.h> | ||
12 | #include <linux/vt_kern.h> | ||
13 | #include <linux/init.h> | ||
14 | #include <linux/module.h> | ||
15 | |||
16 | /* | ||
17 | * Dummy console driver | ||
18 | */ | ||
19 | |||
20 | #if defined(__arm__) | ||
21 | #define DUMMY_COLUMNS ORIG_VIDEO_COLS | ||
22 | #define DUMMY_ROWS ORIG_VIDEO_LINES | ||
23 | #elif defined(__hppa__) | ||
24 | /* set by Kconfig. Use 80x25 for 640x480 and 160x64 for 1280x1024 */ | ||
25 | #include <linux/config.h> | ||
26 | #define DUMMY_COLUMNS CONFIG_DUMMY_CONSOLE_COLUMNS | ||
27 | #define DUMMY_ROWS CONFIG_DUMMY_CONSOLE_ROWS | ||
28 | #else | ||
29 | #define DUMMY_COLUMNS 80 | ||
30 | #define DUMMY_ROWS 25 | ||
31 | #endif | ||
32 | |||
33 | static const char *dummycon_startup(void) | ||
34 | { | ||
35 | return "dummy device"; | ||
36 | } | ||
37 | |||
38 | static void dummycon_init(struct vc_data *vc, int init) | ||
39 | { | ||
40 | vc->vc_can_do_color = 1; | ||
41 | if (init) { | ||
42 | vc->vc_cols = DUMMY_COLUMNS; | ||
43 | vc->vc_rows = DUMMY_ROWS; | ||
44 | } else | ||
45 | vc_resize(vc, DUMMY_COLUMNS, DUMMY_ROWS); | ||
46 | } | ||
47 | |||
48 | static int dummycon_dummy(void) | ||
49 | { | ||
50 | return 0; | ||
51 | } | ||
52 | |||
53 | #define DUMMY (void *)dummycon_dummy | ||
54 | |||
55 | /* | ||
56 | * The console `switch' structure for the dummy console | ||
57 | * | ||
58 | * Most of the operations are dummies. | ||
59 | */ | ||
60 | |||
61 | const struct consw dummy_con = { | ||
62 | .owner = THIS_MODULE, | ||
63 | .con_startup = dummycon_startup, | ||
64 | .con_init = dummycon_init, | ||
65 | .con_deinit = DUMMY, | ||
66 | .con_clear = DUMMY, | ||
67 | .con_putc = DUMMY, | ||
68 | .con_putcs = DUMMY, | ||
69 | .con_cursor = DUMMY, | ||
70 | .con_scroll = DUMMY, | ||
71 | .con_bmove = DUMMY, | ||
72 | .con_switch = DUMMY, | ||
73 | .con_blank = DUMMY, | ||
74 | .con_font_set = DUMMY, | ||
75 | .con_font_get = DUMMY, | ||
76 | .con_font_default = DUMMY, | ||
77 | .con_font_copy = DUMMY, | ||
78 | .con_set_palette = DUMMY, | ||
79 | .con_scrolldelta = DUMMY, | ||
80 | }; | ||