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-rw-r--r--Documentation/fb/arkfb.txt68
-rw-r--r--Documentation/fb/aty128fb.txt4
-rw-r--r--Documentation/fb/framebuffer.txt16
-rw-r--r--Documentation/fb/imacfb.txt2
-rw-r--r--Documentation/fb/sstfb.txt4
-rw-r--r--Documentation/fb/vt8623fb.txt64
6 files changed, 145 insertions, 13 deletions
diff --git a/Documentation/fb/arkfb.txt b/Documentation/fb/arkfb.txt
new file mode 100644
index 000000000000..e8487a9d6a05
--- /dev/null
+++ b/Documentation/fb/arkfb.txt
@@ -0,0 +1,68 @@
1
2 arkfb - fbdev driver for ARK Logic chips
3 ========================================
4
5
6Supported Hardware
7==================
8
9 ARK 2000PV chip
10 ICS 5342 ramdac
11
12 - only BIOS initialized VGA devices supported
13 - probably not working on big endian
14
15
16Supported Features
17==================
18
19 * 4 bpp pseudocolor modes (with 18bit palette, two variants)
20 * 8 bpp pseudocolor mode (with 18bit palette)
21 * 16 bpp truecolor modes (RGB 555 and RGB 565)
22 * 24 bpp truecolor mode (RGB 888)
23 * 32 bpp truecolor mode (RGB 888)
24 * text mode (activated by bpp = 0)
25 * doublescan mode variant (not available in text mode)
26 * panning in both directions
27 * suspend/resume support
28
29Text mode is supported even in higher resolutions, but there is limitation to
30lower pixclocks (i got maximum about 70 MHz, it is dependent on specific
31hardware). This limitation is not enforced by driver. Text mode supports 8bit
32wide fonts only (hardware limitation) and 16bit tall fonts (driver
33limitation). Unfortunately character attributes (like color) in text mode are
34broken for unknown reason, so its usefulness is limited.
35
36There are two 4 bpp modes. First mode (selected if nonstd == 0) is mode with
37packed pixels, high nibble first. Second mode (selected if nonstd == 1) is mode
38with interleaved planes (1 byte interleave), MSB first. Both modes support
398bit wide fonts only (driver limitation).
40
41Suspend/resume works on systems that initialize video card during resume and
42if device is active (for example used by fbcon).
43
44
45Missing Features
46================
47(alias TODO list)
48
49 * secondary (not initialized by BIOS) device support
50 * big endian support
51 * DPMS support
52 * MMIO support
53 * interlaced mode variant
54 * support for fontwidths != 8 in 4 bpp modes
55 * support for fontheight != 16 in text mode
56 * hardware cursor
57 * vsync synchronization
58 * feature connector support
59 * acceleration support (8514-like 2D)
60
61
62Known bugs
63==========
64
65 * character attributes (and cursor) in text mode are broken
66
67--
68Ondrej Zajicek <santiago@crfreenet.org>
diff --git a/Documentation/fb/aty128fb.txt b/Documentation/fb/aty128fb.txt
index 069262fb619d..b605204fcfe1 100644
--- a/Documentation/fb/aty128fb.txt
+++ b/Documentation/fb/aty128fb.txt
@@ -54,8 +54,8 @@ Accepted options:
54 54
55noaccel - do not use acceleration engine. It is default. 55noaccel - do not use acceleration engine. It is default.
56accel - use acceleration engine. Not finished. 56accel - use acceleration engine. Not finished.
57vmode:x - chooses PowerMacintosh video mode <x>. Depreciated. 57vmode:x - chooses PowerMacintosh video mode <x>. Deprecated.
58cmode:x - chooses PowerMacintosh colour mode <x>. Depreciated. 58cmode:x - chooses PowerMacintosh colour mode <x>. Deprecated.
59<XxX@X> - selects startup videomode. See modedb.txt for detailed 59<XxX@X> - selects startup videomode. See modedb.txt for detailed
60 explanation. Default is 640x480x8bpp. 60 explanation. Default is 640x480x8bpp.
61 61
diff --git a/Documentation/fb/framebuffer.txt b/Documentation/fb/framebuffer.txt
index 610e7801207b..b3e3a0356839 100644
--- a/Documentation/fb/framebuffer.txt
+++ b/Documentation/fb/framebuffer.txt
@@ -215,11 +215,11 @@ vertical retrace time is the sum of the upper margin, the lower margin and the
215vsync length. 215vsync length.
216 216
217 +----------+---------------------------------------------+----------+-------+ 217 +----------+---------------------------------------------+----------+-------+
218 | | ^ | | | 218 | | ↑ | | |
219 | | |upper_margin | | | 219 | | |upper_margin | | |
220 | | ¥ | | | 220 | | ↓ | | |
221 +----------###############################################----------+-------+ 221 +----------###############################################----------+-------+
222 | # ^ # | | 222 | # ↑ # | |
223 | # | # | | 223 | # | # | |
224 | # | # | | 224 | # | # | |
225 | # | # | | 225 | # | # | |
@@ -238,15 +238,15 @@ vsync length.
238 | # | # | | 238 | # | # | |
239 | # | # | | 239 | # | # | |
240 | # | # | | 240 | # | # | |
241 | # ¥ # | | 241 | # ↓ # | |
242 +----------###############################################----------+-------+ 242 +----------###############################################----------+-------+
243 | | ^ | | | 243 | | ↑ | | |
244 | | |lower_margin | | | 244 | | |lower_margin | | |
245 | | ¥ | | | 245 | | ↓ | | |
246 +----------+---------------------------------------------+----------+-------+ 246 +----------+---------------------------------------------+----------+-------+
247 | | ^ | | | 247 | | ↑ | | |
248 | | |vsync_len | | | 248 | | |vsync_len | | |
249 | | ¥ | | | 249 | | ↓ | | |
250 +----------+---------------------------------------------+----------+-------+ 250 +----------+---------------------------------------------+----------+-------+
251 251
252The frame buffer device expects all horizontal timings in number of dotclocks 252The frame buffer device expects all horizontal timings in number of dotclocks
diff --git a/Documentation/fb/imacfb.txt b/Documentation/fb/imacfb.txt
index 759028545a7e..316ec9bb7deb 100644
--- a/Documentation/fb/imacfb.txt
+++ b/Documentation/fb/imacfb.txt
@@ -17,7 +17,7 @@ How to use it?
17============== 17==============
18 18
19Imacfb does not have any kind of autodetection of your machine. 19Imacfb does not have any kind of autodetection of your machine.
20You have to add the fillowing kernel parameters in your elilo.conf: 20You have to add the following kernel parameters in your elilo.conf:
21 Macbook : 21 Macbook :
22 video=imacfb:macbook 22 video=imacfb:macbook
23 MacMini : 23 MacMini :
diff --git a/Documentation/fb/sstfb.txt b/Documentation/fb/sstfb.txt
index df27f5bf15db..550ca775a4cb 100644
--- a/Documentation/fb/sstfb.txt
+++ b/Documentation/fb/sstfb.txt
@@ -2,9 +2,9 @@
2Introduction 2Introduction
3 3
4 This is a frame buffer device driver for 3dfx' Voodoo Graphics 4 This is a frame buffer device driver for 3dfx' Voodoo Graphics
5 (aka voodoo 1, aka sst1) and Voodoo² (aka Voodoo 2, aka CVG) based 5 (aka voodoo 1, aka sst1) and Voodoo² (aka Voodoo 2, aka CVG) based
6 video boards. It's highly experimental code, but is guaranteed to work 6 video boards. It's highly experimental code, but is guaranteed to work
7 on my computer, with my "Maxi Gamer 3D" and "Maxi Gamer 3d²" boards, 7 on my computer, with my "Maxi Gamer 3D" and "Maxi Gamer 3d²" boards,
8 and with me "between chair and keyboard". Some people tested other 8 and with me "between chair and keyboard". Some people tested other
9 combinations and it seems that it works. 9 combinations and it seems that it works.
10 The main page is located at <http://sstfb.sourceforge.net>, and if 10 The main page is located at <http://sstfb.sourceforge.net>, and if
diff --git a/Documentation/fb/vt8623fb.txt b/Documentation/fb/vt8623fb.txt
new file mode 100644
index 000000000000..f654576c56b7
--- /dev/null
+++ b/Documentation/fb/vt8623fb.txt
@@ -0,0 +1,64 @@
1
2 vt8623fb - fbdev driver for graphics core in VIA VT8623 chipset
3 ===============================================================
4
5
6Supported Hardware
7==================
8
9 VIA VT8623 [CLE266] chipset and its graphics core
10 (known as CastleRock or Unichrome)
11
12I tested vt8623fb on VIA EPIA ML-6000
13
14
15Supported Features
16==================
17
18 * 4 bpp pseudocolor modes (with 18bit palette, two variants)
19 * 8 bpp pseudocolor mode (with 18bit palette)
20 * 16 bpp truecolor mode (RGB 565)
21 * 32 bpp truecolor mode (RGB 888)
22 * text mode (activated by bpp = 0)
23 * doublescan mode variant (not available in text mode)
24 * panning in both directions
25 * suspend/resume support
26 * DPMS support
27
28Text mode is supported even in higher resolutions, but there is limitation to
29lower pixclocks (maximum about 100 MHz). This limitation is not enforced by
30driver. Text mode supports 8bit wide fonts only (hardware limitation) and
3116bit tall fonts (driver limitation).
32
33There are two 4 bpp modes. First mode (selected if nonstd == 0) is mode with
34packed pixels, high nibble first. Second mode (selected if nonstd == 1) is mode
35with interleaved planes (1 byte interleave), MSB first. Both modes support
368bit wide fonts only (driver limitation).
37
38Suspend/resume works on systems that initialize video card during resume and
39if device is active (for example used by fbcon).
40
41
42Missing Features
43================
44(alias TODO list)
45
46 * secondary (not initialized by BIOS) device support
47 * MMIO support
48 * interlaced mode variant
49 * support for fontwidths != 8 in 4 bpp modes
50 * support for fontheight != 16 in text mode
51 * hardware cursor
52 * video overlay support
53 * vsync synchronization
54 * acceleration support (8514-like 2D, busmaster transfers)
55
56
57Known bugs
58==========
59
60 * cursor disable in text mode doesn't work
61
62
63--
64Ondrej Zajicek <santiago@crfreenet.org>
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-26 07:57:50 -0500