The patch titled
fbdev: remove cyblafb driver
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remove-cyblafb-driver.patch
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------------------------------------------------------
Subject: fbdev: remove cyblafb driver
From: Krzysztof Helt <krzysztof.h1@xxxxx>
A tridentfb driver has all the functionality of the cyblafb driver without
the bugs of the latter.
Changes to the tridentfb driver:
- FBINFO_READS_FAST added to the tridentfb. The cyblafb used a blitter
for scrolling which is faster than color expansion on Cyberblade
chipsets. The blitter is slower on a discrete Blade3D core. Use the
blitter for scrolling in the tridentfb only for integrated Blade3D
cores. Now, scrolling speed is about equal for the tridentfb and the
cyblafb.
- a copyright notice addition is done on request of Jani Monoses (the
first author of the tridentfb).
Tested on AGP Blade3D card and PCChips
M787CLR motherboard: VIA C3 cpu +
VT8601 north bridge (aka Cyberblade/i1).
Signed-off-by: Krzysztof Helt <krzysztof.h1@xxxxx>
Cc: "Jani Monoses" <jani@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/fb/00-INDEX | 2
Documentation/fb/cyblafb/bugs | 13
Documentation/fb/cyblafb/credits | 7
Documentation/fb/cyblafb/documentation | 17
Documentation/fb/cyblafb/fb.modes | 154 --
Documentation/fb/cyblafb/performance | 79 -
Documentation/fb/cyblafb/todo | 31
Documentation/fb/cyblafb/usage | 217 --
Documentation/fb/cyblafb/whatsnew | 29
Documentation/fb/cyblafb/whycyblafb | 85 -
drivers/video/Kconfig | 28
drivers/video/cyblafb.c | 1683 -----------------------
drivers/video/tridentfb.c | 6
13 files changed, 7 insertions(+), 2344 deletions(-)
diff -puN Documentation/fb/00-INDEX~remove-cyblafb-driver Documentation/fb/00-INDEX
--- a/Documentation/fb/00-INDEX~remove-cyblafb-driver
+++ a/Documentation/fb/00-INDEX
@@ -11,8 +11,6 @@ aty128fb.txt
- info on the ATI Rage128 frame buffer driver.
cirrusfb.txt
- info on the driver for Cirrus Logic chipsets.
-cyblafb/
- - directory with documentation files related to the cyblafb driver.
deferred_io.txt
- an introduction to deferred IO.
fbcon.txt
diff -puN Documentation/fb/cyblafb/bugs~remove-cyblafb-driver /dev/null
--- a/Documentation/fb/cyblafb/bugs
+++ /dev/null
@@ -1,13 +0,0 @@
-Bugs
-====
-
-I currently don't know of any bug. Please do send reports to:
- - linux-fbdev-devel@xxxxxxxxxxxxxxxxxxxxx
- - Knut_Petersen@xxxxxxxxxxxx
-
-
-Untested features
-=================
-
-All LCD stuff is untested. If it worked in tridentfb, it should work in
-cyblafb. Please test and report the results to Knut_Petersen@xxxxxxxxxxxx
diff -puN Documentation/fb/cyblafb/credits~remove-cyblafb-driver /dev/null
--- a/Documentation/fb/cyblafb/credits
+++ /dev/null
@@ -1,7 +0,0 @@
-Thanks to
-=========
- * Alan Hourihane, for writing the X trident driver
- * Jani Monoses, for writing the tridentfb driver
- * Antonino A. Daplas, for review of the first published
- version of cyblafb and some code
- * Jochen Hein, for testing and a helpfull bug report
diff -puN Documentation/fb/cyblafb/documentation~remove-cyblafb-driver /dev/null
--- a/Documentation/fb/cyblafb/documentation
+++ /dev/null
@@ -1,17 +0,0 @@
-Available Documentation
-=======================
-
-Apollo PLE 133 Chipset VT8601A North Bridge Datasheet, Rev. 1.82, October 22,
-2001, available from VIA:
-
- http://www.viavpsd.com/product/6/15/DS8601A182.pdf
-
-The datasheet is incomplete, some registers that need to be programmed are not
-explained at all and important bits are listed as "reserved". But you really
-need the datasheet to understand the code. "p. xxx" comments refer to page
-numbers of this document.
-
-XFree/XOrg drivers are available and of good quality, looking at the code
-there is a good idea if the datasheet does not provide enough information
-or if the datasheet seems to be wrong.
-
diff -puN Documentation/fb/cyblafb/fb.modes~remove-cyblafb-driver /dev/null
--- a/Documentation/fb/cyblafb/fb.modes
+++ /dev/null
@@ -1,154 +0,0 @@
-#
-# Sample fb.modes file
-#
-# Provides an incomplete list of working modes for
-# the cyberblade/i1 graphics core.
-#
-# The value 4294967256 is used instead of -40. Of course, -40 is not
-# a really reasonable value, but chip design does not always follow
-# logic. Believe me, it's ok, and it's the way the BIOS does it.
-#
-# fbset requires 4294967256 in fb.modes and -40 as an argument to
-# the -t parameter. That's also not too reasonable, and it might change
-# in the future or might even be differt for your current version.
-#
-
-mode "640x480-50"
- geometry 640 480 2048 4096 8
- timings 47619 4294967256 24 17 0 216 3
-endmode
-
-mode "640x480-60"
- geometry 640 480 2048 4096 8
- timings 39682 4294967256 24 17 0 216 3
-endmode
-
-mode "640x480-70"
- geometry 640 480 2048 4096 8
- timings 34013 4294967256 24 17 0 216 3
-endmode
-
-mode "640x480-72"
- geometry 640 480 2048 4096 8
- timings 33068 4294967256 24 17 0 216 3
-endmode
-
-mode "640x480-75"
- geometry 640 480 2048 4096 8
- timings 31746 4294967256 24 17 0 216 3
-endmode
-
-mode "640x480-80"
- geometry 640 480 2048 4096 8
- timings 29761 4294967256 24 17 0 216 3
-endmode
-
-mode "640x480-85"
- geometry 640 480 2048 4096 8
- timings 28011 4294967256 24 17 0 216 3
-endmode
-
-mode "800x600-50"
- geometry 800 600 2048 4096 8
- timings 30303 96 24 14 0 136 11
-endmode
-
-mode "800x600-60"
- geometry 800 600 2048 4096 8
- timings 25252 96 24 14 0 136 11
-endmode
-
-mode "800x600-70"
- geometry 800 600 2048 4096 8
- timings 21645 96 24 14 0 136 11
-endmode
-
-mode "800x600-72"
- geometry 800 600 2048 4096 8
- timings 21043 96 24 14 0 136 11
-endmode
-
-mode "800x600-75"
- geometry 800 600 2048 4096 8
- timings 20202 96 24 14 0 136 11
-endmode
-
-mode "800x600-80"
- geometry 800 600 2048 4096 8
- timings 18939 96 24 14 0 136 11
-endmode
-
-mode "800x600-85"
- geometry 800 600 2048 4096 8
- timings 17825 96 24 14 0 136 11
-endmode
-
-mode "1024x768-50"
- geometry 1024 768 2048 4096 8
- timings 19054 144 24 29 0 120 3
-endmode
-
-mode "1024x768-60"
- geometry 1024 768 2048 4096 8
- timings 15880 144 24 29 0 120 3
-endmode
-
-mode "1024x768-70"
- geometry 1024 768 2048 4096 8
- timings 13610 144 24 29 0 120 3
-endmode
-
-mode "1024x768-72"
- geometry 1024 768 2048 4096 8
- timings 13232 144 24 29 0 120 3
-endmode
-
-mode "1024x768-75"
- geometry 1024 768 2048 4096 8
- timings 12703 144 24 29 0 120 3
-endmode
-
-mode "1024x768-80"
- geometry 1024 768 2048 4096 8
- timings 11910 144 24 29 0 120 3
-endmode
-
-mode "1024x768-85"
- geometry 1024 768 2048 4096 8
- timings 11209 144 24 29 0 120 3
-endmode
-
-mode "1280x1024-50"
- geometry 1280 1024 2048 4096 8
- timings 11114 232 16 39 0 160 3
-endmode
-
-mode "1280x1024-60"
- geometry 1280 1024 2048 4096 8
- timings 9262 232 16 39 0 160 3
-endmode
-
-mode "1280x1024-70"
- geometry 1280 1024 2048 4096 8
- timings 7939 232 16 39 0 160 3
-endmode
-
-mode "1280x1024-72"
- geometry 1280 1024 2048 4096 8
- timings 7719 232 16 39 0 160 3
-endmode
-
-mode "1280x1024-75"
- geometry 1280 1024 2048 4096 8
- timings 7410 232 16 39 0 160 3
-endmode
-
-mode "1280x1024-80"
- geometry 1280 1024 2048 4096 8
- timings 6946 232 16 39 0 160 3
-endmode
-
-mode "1280x1024-85"
- geometry 1280 1024 2048 4096 8
- timings 6538 232 16 39 0 160 3
-endmode
diff -puN Documentation/fb/cyblafb/performance~remove-cyblafb-driver /dev/null
--- a/Documentation/fb/cyblafb/performance
+++ /dev/null
@@ -1,79 +0,0 @@
-Speed
-=====
-
-CyBlaFB is much faster than tridentfb and vesafb. Compare the performance data
-for mode 1280x1024-[8,16,32]@61 Hz.
-
-Test 1: Cat a file with 2000 lines of 0 characters.
-Test 2: Cat a file with 2000 lines of 80 characters.
-Test 3: Cat a file with 2000 lines of 160 characters.
-
-All values show system time use in seconds, kernel 2.6.12 was used for
-the measurements. 2.6.13 is a bit slower, 2.6.14 hopefully will include a
-patch that speeds up kernel bitblitting a lot ( > 20%).
-
-+-----------+-----------------------------------------------------+
-| | not accelerated |
-| TRIDENTFB +-----------------+-----------------+-----------------+
-| of 2.6.12 | 8 bpp | 16 bpp | 32 bpp |
-| | noypan | ypan | noypan | ypan | noypan | ypan |
-+-----------+--------+--------+--------+--------+--------+--------+
-| Test 1 | 4.31 | 4.33 | 6.05 | 12.81 | ---- | ---- |
-| Test 2 | 67.94 | 5.44 | 123.16 | 14.79 | ---- | ---- |
-| Test 3 | 131.36 | 6.55 | 240.12 | 16.76 | ---- | ---- |
-+-----------+--------+--------+--------+--------+--------+--------+
-| Comments | | | completely bro- |
-| | | | ken, monitor |
-| | | | switches off |
-+-----------+-----------------+-----------------+-----------------+
-
-
-+-----------+-----------------------------------------------------+
-| | accelerated |
-| TRIDENTFB +-----------------+-----------------+-----------------+
-| of 2.6.12 | 8 bpp | 16 bpp | 32 bpp |
-| | noypan | ypan | noypan | ypan | noypan | ypan |
-+-----------+--------+--------+--------+--------+--------+--------+
-| Test 1 | ---- | ---- | 20.62 | 1.22 | ---- | ---- |
-| Test 2 | ---- | ---- | 22.61 | 3.19 | ---- | ---- |
-| Test 3 | ---- | ---- | 24.59 | 5.16 | ---- | ---- |
-+-----------+--------+--------+--------+--------+--------+--------+
-| Comments | broken, writing | broken, ok only | completely bro- |
-| | to wrong places | if bgcolor is | ken, monitor |
-| | on screen + bug | black, bug in | switches off |
-| | in fillrect() | fillrect() | |
-+-----------+-----------------+-----------------+-----------------+
-
-
-+-----------+-----------------------------------------------------+
-| | not accelerated |
-| VESAFB +-----------------+-----------------+-----------------+
-| of 2.6.12 | 8 bpp | 16 bpp | 32 bpp |
-| | noypan | ypan | noypan | ypan | noypan | ypan |
-+-----------+--------+--------+--------+--------+--------+--------+
-| Test 1 | 4.26 | 3.76 | 5.99 | 7.23 | ---- | ---- |
-| Test 2 | 65.65 | 4.89 | 120.88 | 9.08 | ---- | ---- |
-| Test 3 | 126.91 | 5.94 | 235.77 | 11.03 | ---- | ---- |
-+-----------+--------+--------+--------+--------+--------+--------+
-| Comments | vga=0x307 | vga=0x31a | vga=0x31b not |
-| | fh=80kHz | fh=80kHz | supported by |
-| | fv=75kHz | fv=75kHz | video BIOS and |
-| | | | hardware |
-+-----------+-----------------+-----------------+-----------------+
-
-
-+-----------+-----------------------------------------------------+
-| | accelerated |
-| CYBLAFB +-----------------+-----------------+-----------------+
-| | 8 bpp | 16 bpp | 32 bpp |
-| | noypan | ypan | noypan | ypan | noypan | ypan |
-+-----------+--------+--------+--------+--------+--------+--------+
-| Test 1 | 8.02 | 0.23 | 19.04 | 0.61 | 57.12 | 2.74 |
-| Test 2 | 8.38 | 0.55 | 19.39 | 0.92 | 57.54 | 3.13 |
-| Test 3 | 8.73 | 0.86 | 19.74 | 1.24 | 57.95 | 3.51 |
-+-----------+--------+--------+--------+--------+--------+--------+
-| Comments | | | |
-| | | | |
-| | | | |
-| | | | |
-+-----------+-----------------+-----------------+-----------------+
diff -puN Documentation/fb/cyblafb/todo~remove-cyblafb-driver /dev/null
--- a/Documentation/fb/cyblafb/todo
+++ /dev/null
@@ -1,31 +0,0 @@
-TODO / Missing features
-=======================
-
-Verify LCD stuff "stretch" and "center" options are
- completely untested ... this code needs to be
- verified. As I don't have access to such
- hardware, please contact me if you are
- willing run some tests.
-
-Interlaced video modes The reason that interleaved
- modes are disabled is that I do not know
- the meaning of the vertical interlace
- parameter. Also the datasheet mentions a
- bit d8 of a horizontal interlace parameter,
- but nowhere the lower 8 bits. Please help
- if you can.
-
-low-res double scan modes Who needs it?
-
-accelerated color blitting Who needs it? The console driver does use color
- blitting for nothing but drawing the penguine,
- everything else is done using color expanding
- blitting of 1bpp character bitmaps.
-
-ioctls Who needs it?
-
-TV-out Will be done later. Use "vga= " at boot time
- to set a suitable video mode.
-
-??? Feel free to contact me if you have any
- feature requests
diff -puN Documentation/fb/cyblafb/usage~remove-cyblafb-driver /dev/null
--- a/Documentation/fb/cyblafb/usage
+++ /dev/null
@@ -1,217 +0,0 @@
-CyBlaFB is a framebuffer driver for the Cyberblade/i1 graphics core integrated
-into the VIA Apollo PLE133 (aka vt8601) south bridge. It is developed and
-tested using a VIA EPIA 5000 board.
-
-Cyblafb - compiled into the kernel or as a module?
-==================================================
-
-You might compile cyblafb either as a module or compile it permanently into the
-kernel.
-
-Unless you have a real reason to do so you should not compile both vesafb and
-cyblafb permanently into the kernel. It's possible and it helps during the
-developement cycle, but it's useless and will at least block some otherwise
-usefull memory for ordinary users.
-
-Selecting Modes
-===============
-
- Startup Mode
- ============
-
- First of all, you might use the "vga=???" boot parameter as it is
- documented in vesafb.txt and svga.txt. Cyblafb will detect the video
- mode selected and will use the geometry and timings found by
- inspecting the hardware registers.
-
- video=cyblafb vga=0x317
-
- Alternatively you might use a combination of the mode, ref and bpp
- parameters. If you compiled the driver into the kernel, add something
- like this to the kernel command line:
-
- video=cyblafb:1280x1024,bpp=16,ref=50 ...
-
- If you compiled the driver as a module, the same mode would be
- selected by the following command:
-
- modprobe cyblafb mode=1280x1024 bpp=16 ref=50 ...
-
- None of the modes possible to select as startup modes are affected by
- the problems described at the end of the next subsection.
-
- For all startup modes cyblafb chooses a virtual x resolution of 2048,
- the only exception is mode 1280x1024 in combination with 32 bpp. This
- allows ywrap scrolling for all those modes if rotation is 0 or 2, and
- also fast scrolling if rotation is 1 or 3. The default virtual y reso-
- lution is 4096 for bpp == 8, 2048 for bpp==16 and 1024 for bpp == 32,
- again with the only exception of 1280x1024 at 32 bpp.
-
- Please do set your video memory size to 8 Mb in the Bios setup. Other
- values will work, but performace is decreased for a lot of modes.
-
- Mode changes using fbset
- ========================
-
- You might use fbset to change the video mode, see "man fbset". Cyblafb
- generally does assume that you know what you are doing. But it does
- some checks, especially those that are needed to prevent you from
- damaging your hardware.
-
- - only 8, 16, 24 and 32 bpp video modes are accepted
- - interlaced video modes are not accepted
- - double scan video modes are not accepted
- - if a flat panel is found, cyblafb does not allow you
- to program a resolution higher than the physical
- resolution of the flat panel monitor
- - cyblafb does not allow vclk to exceed 230 MHz. As 32 bpp
- and (currently) 24 bit modes use a doubled vclk internally,
- the dotclock limit as seen by fbset is 115 MHz for those
- modes and 230 MHz for 8 and 16 bpp modes.
- - cyblafb will allow you to select very high resolutions as
- long as the hardware can be programmed to these modes. The
- documented limit 1600x1200 is not enforced, but don't expect
- perfect signal quality.
-
- Any request that violates the rules given above will be either changed
- to something the hardware supports or an error value will be returned.
-
- If you program a virtual y resolution higher than the hardware limit,
- cyblafb will silently decrease that value to the highest possible
- value. The same is true for a virtual x resolution that is not
- supported by the hardware. Cyblafb tries to adapt vyres first because
- vxres decides if ywrap scrolling is possible or not.
-
- Attempts to disable acceleration are ignored, I believe that this is
- safe.
-
- Some video modes that should work do not work as expected. If you use
- the standard fb.modes, fbset 640x480-60 will program that mode, but
- you will see a vertical area, about two characters wide, with only
- much darker characters than the other characters on the screen.
- Cyblafb does allow that mode to be set, as it does not violate the
- official specifications. It would need a lot of code to reliably sort
- out all invalid modes, playing around with the margin values will
- give a valid mode quickly. And if cyblafb would detect such an invalid
- mode, should it silently alter the requested values or should it
- report an error? Both options have some pros and cons. As stated
- above, none of the startup modes are affected, and if you set
- verbosity to 1 or higher, cyblafb will print the fbset command that
- would be needed to program that mode using fbset.
-
-
-Other Parameters
-================
-
-
-crt don't autodetect, assume monitor connected to
- standard VGA connector
-
-fp don't autodetect, assume flat panel display
- connected to flat panel monitor interface
-
-nativex inform driver about native x resolution of
- flat panel monitor connected to special
- interface (should be autodetected)
-
-stretch stretch image to adapt low resolution modes to
- higer resolutions of flat panel monitors
- connected to special interface
-
-center center image to adapt low resolution modes to
- higer resolutions of flat panel monitors
- connected to special interface
-
-memsize use if autodetected memsize is wrong ...
- should never be necessary
-
-nopcirr disable PCI read retry
-nopciwr disable PCI write retry
-nopcirb disable PCI read bursts
-nopciwb disable PCI write bursts
-
-bpp bpp for specified modes
- valid values: 8 || 16 || 24 || 32
-
-ref refresh rate for specified mode
- valid values: 50 <= ref <= 85
-
-mode 640x480 or 800x600 or 1024x768 or 1280x1024
- if not specified, the startup mode will be detected
- and used, so you might also use the vga=??? parameter
- described in vesafb.txt. If you do not specify a mode,
- bpp and ref parameters are ignored.
-
-verbosity 0 is the default, increase to at least 2 for every
- bug report!
-
-Development hints
-=================
-
-It's much faster do compile a module and to load the new version after
-unloading the old module than to compile a new kernel and to reboot. So if you
-try to work on cyblafb, it might be a good idea to use cyblafb as a module.
-In real life, fast often means dangerous, and that's also the case here. If
-you introduce a serious bug when cyblafb is compiled into the kernel, the
-kernel will lock or oops with a high probability before the file system is
-mounted, and the danger for your data is low. If you load a broken own version
-of cyblafb on a running system, the danger for the integrity of the file
-system is much higher as you might need a hard reset afterwards. Decide
-yourself.
-
-Module unloading, the vfb method
-================================
-
-If you want to unload/reload cyblafb using the virtual framebuffer, you need
-to enable vfb support in the kernel first. After that, load the modules as
-shown below:
-
- modprobe vfb vfb_enable=1
- modprobe fbcon
- modprobe cyblafb
- fbset -fb /dev/fb1 1280x1024-60 -vyres 2662
- con2fb /dev/fb1 /dev/tty1
- ...
-
-If you now made some changes to cyblafb and want to reload it, you might do it
-as show below:
-
- con2fb /dev/fb0 /dev/tty1
- ...
- rmmod cyblafb
- modprobe cyblafb
- con2fb /dev/fb1 /dev/tty1
- ...
-
-Of course, you might choose another mode, and most certainly you also want to
-map some other /dev/tty* to the real framebuffer device. You might also choose
-to compile fbcon as a kernel module or place it permanently in the kernel.
-
-I do not know of any way to unload fbcon, and fbcon will prevent the
-framebuffer device loaded first from unloading. [If there is a way, then
-please add a description here!]
-
-Module unloading, the vesafb method
-===================================
-
-Configure the kernel:
-
- <*> Support for frame buffer devices
- [*] VESA VGA graphics support
- <M> Cyberblade/i1 support
-
-Add e.g. "video=vesafb:ypan vga=0x307" to the kernel parameters. The ypan
-parameter is important, choose any vga parameter you like as long as it is
-a graphics mode.
-
-After booting, load cyblafb without any mode and bpp parameter and assign
-cyblafb to individual ttys using con2fb, e.g.:
-
- modprobe cyblafb
- con2fb /dev/fb1 /dev/tty1
-
-Unloading cyblafb works without problems after you assign vesafb to all
-ttys again, e.g.:
-
- con2fb /dev/fb0 /dev/tty1
- rmmod cyblafb
diff -puN Documentation/fb/cyblafb/whatsnew~remove-cyblafb-driver /dev/null
--- a/Documentation/fb/cyblafb/whatsnew
+++ /dev/null
@@ -1,29 +0,0 @@
-0.62
-====
-
- - the vesafb parameter has been removed as I decided to allow the
- feature without any special parameter.
-
- - Cyblafb does not use the vga style of panning any longer, now the
- "right view" register in the graphics engine IO space is used. Without
- that change it was impossible to use all available memory, and without
- access to all available memory it is impossible to ywrap.
-
- - The imageblit function now uses hardware acceleration for all font
- widths. Hardware blitting across pixel column 2048 is broken in the
- cyberblade/i1 graphics core, but we work around that hardware bug.
-
- - modes with vxres != xres are supported now.
-
- - ywrap scrolling is supported now and the default. This is a big
- performance gain.
-
- - default video modes use vyres > yres and vxres > xres to allow
- almost optimal scrolling speed for normal and rotated screens
-
- - some features mainly usefull for debugging the upper layers of the
- framebuffer system have been added, have a look at the code
-
- - fixed: Oops after unloading cyblafb when reading /proc/io*
-
- - we work around some bugs of the higher framebuffer layers.
diff -puN Documentation/fb/cyblafb/whycyblafb~remove-cyblafb-driver /dev/null
--- a/Documentation/fb/cyblafb/whycyblafb
+++ /dev/null
@@ -1,85 +0,0 @@
-I tried the following framebuffer drivers:
-
- - TRIDENTFB is full of bugs. Acceleration is broken for Blade3D
- graphics cores like the cyberblade/i1. It claims to support a great
- number of devices, but documentation for most of these devices is
- unfortunately not available. There is _no_ reason to use tridentfb
- for cyberblade/i1 + CRT users. VESAFB is faster, and the one
- advantage, mode switching, is broken in tridentfb.
-
- - VESAFB is used by many distributions as a standard. Vesafb does
- not support mode switching. VESAFB is a bit faster than the working
- configurations of TRIDENTFB, but it is still too slow, even if you
- use ypan.
-
- - EPIAFB (you'll find it on sourceforge) supports the Cyberblade/i1
- graphics core, but it still has serious bugs and developement seems
- to have stopped. This is the one driver with TV-out support. If you
- do need this feature, try epiafb.
-
-None of these drivers was a real option for me.
-
-I believe that is unreasonable to change code that announces to support 20
-devices if I only have more or less sufficient documentation for exactly one
-of these. The risk of breaking device foo while fixing device bar is too high.
-
-So I decided to start CyBlaFB as a stripped down tridentfb.
-
-All code specific to other Trident chips has been removed. After that there
-were a lot of cosmetic changes to increase the readability of the code. All
-register names were changed to those mnemonics used in the datasheet. Function
-and macro names were changed if they hindered easy understanding of the code.
-
-After that I debugged the code and implemented some new features. I'll try to
-give a little summary of the main changes:
-
- - calculation of vertical and horizontal timings was fixed
-
- - video signal quality has been improved dramatically
-
- - acceleration:
-
- - fillrect and copyarea were fixed and reenabled
-
- - color expanding imageblit was newly implemented, color
- imageblit (only used to draw the penguine) still uses the
- generic code.
-
- - init of the acceleration engine was improved and moved to a
- place where it really works ...
-
- - sync function has a timeout now and tries to reset and
- reinit the accel engine if necessary
-
- - fewer slow copyarea calls when doing ypan scrolling by using
- undocumented bit d21 of screen start address stored in
- CR2B[5]. BIOS does use it also, so this should be safe.
-
- - cyblafb rejects any attempt to set modes that would cause vclk
- values above reasonable 230 MHz. 32bit modes use a clock
- multiplicator of 2, so fbset does show the correct values for
- pixclock but not for vclk in this case. The fbset limit is 115 MHz
- for 32 bpp modes.
-
- - cyblafb rejects modes known to be broken or unimplemented (all
- interlaced modes, all doublescan modes for now)
-
- - cyblafb now works independant of the video mode in effect at startup
- time (tridentfb does not init all needed registers to reasonable
- values)
-
- - switching between video modes does work reliably now
-
- - the first video mode now is the one selected on startup using the
- vga=???? mechanism or any of
- - 640x480, 800x600, 1024x768, 1280x1024
- - 8, 16, 24 or 32 bpp
- - refresh between 50 Hz and 85 Hz, 1 Hz steps (1280x1024-32
- is limited to 63Hz)
-
- - pci retry and pci burst mode are settable (try to disable if you
- experience latency problems)
-
- - built as a module cyblafb might be unloaded and reloaded using
- the vfb module and con2vt or might be used together with vesafb
-
diff -puN drivers/video/Kconfig~remove-cyblafb-driver drivers/video/Kconfig
--- a/drivers/video/Kconfig~remove-cyblafb-driver
+++ a/drivers/video/Kconfig
@@ -1597,30 +1597,6 @@ config FB_VT8623
Driver for CastleRock integrated graphics core in the
VIA VT8623 [Apollo CLE266] chipset.
-config FB_CYBLA
- tristate "Cyberblade/i1 support"
- depends on FB && PCI && X86_32 && !64BIT
- select FB_CFB_IMAGEBLIT
- ---help---
- This driver is supposed to support the Trident Cyberblade/i1
- graphics core integrated in the VIA VT8601A North Bridge,
- also known as VIA Apollo PLE133.
-
- Status:
- - Developed, tested and working on EPIA 5000 and EPIA 800.
- - Does work reliable on all systems with CRT/LCD connected to
- normal VGA ports.
- - Should work on systems that do use the internal LCD port, but
- this is absolutely not tested.
-
- Character imageblit, copyarea and rectangle fill are hw accelerated,
- ypan scrolling is used by default.
-
- Please do read <file:Documentation/fb/cyblafb/*>.
-
- To compile this driver as a module, choose M here: the
- module will be called cyblafb.
-
config FB_TRIDENT
tristate "Trident support"
depends on FB && PCI
@@ -1633,8 +1609,8 @@ config FB_TRIDENT
and Blade XP.
There are also integrated versions of these chips called CyberXXXX,
CyberImage or CyberBlade. These chips are mostly found in laptops
- but also on some motherboards. For more information, read
- <file:Documentation/fb/tridentfb.txt>
+ but also on some motherboards including early VIA EPIA motherboards.
+ For more information, read <file:Documentation/fb/tridentfb.txt>
Say Y if you have such a graphics board.
diff -puN drivers/video/cyblafb.c~remove-cyblafb-driver /dev/null
--- a/drivers/video/cyblafb.c
+++ /dev/null
@@ -1,1683 +0,0 @@
-/*
- * Frame buffer driver for Trident Cyberblade/i1 graphics core
- *
- * Copyright 2005 Knut Petersen <Knut_Petersen@xxxxxxxxxxx>
- *
- * CREDITS:
- * tridentfb.c by Jani Monoses
- * see files above for further credits
- *
- */
-
-#define CYBLAFB_DEBUG 0
-#define CYBLAFB_KD_GRAPHICS_QUIRK 1
-
-#define CYBLAFB_PIXMAPSIZE 8192
-
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <asm/types.h>
-#include <video/cyblafb.h>
-
-#define VERSION "0.62"
-
-struct cyblafb_par {
- u32 pseudo_pal[16];
- struct fb_ops ops;
-};
-
-static struct fb_fix_screeninfo cyblafb_fix __devinitdata = {
- .id = "CyBla",
- .type = FB_TYPE_PACKED_PIXELS,
- .xpanstep = 1,
- .ypanstep = 1,
- .ywrapstep = 1,
- .visual = FB_VISUAL_PSEUDOCOLOR,
- .accel = FB_ACCEL_NONE,
-};
-
-static char *mode __devinitdata = NULL;
-static int bpp __devinitdata = 8;
-static int ref __devinitdata = 75;
-static int fp __devinitdata;
-static int crt __devinitdata;
-static int memsize __devinitdata;
-
-static int basestride;
-static int vesafb;
-static int nativex;
-static int center;
-static int stretch;
-static int pciwb = 1;
-static int pcirb = 1;
-static int pciwr = 1;
-static int pcirr = 1;
-static int disabled;
-static int verbosity;
-static int displaytype;
-
-static void __iomem *io_virt; // iospace virtual memory address
-
-module_param(mode, charp, 0);
-module_param(bpp, int, 0);
-module_param(ref, int, 0);
-module_param(fp, int, 0);
-module_param(crt, int, 0);
-module_param(nativex, int, 0);
-module_param(center, int, 0);
-module_param(stretch, int, 0);
-module_param(pciwb, int, 0);
-module_param(pcirb, int, 0);
-module_param(pciwr, int, 0);
-module_param(pcirr, int, 0);
-module_param(memsize, int, 0);
-module_param(verbosity, int, 0);
-
-//=========================================
-//
-// Well, we have to fix the upper layers.
-// Until this has been done, we work around
-// the bugs.
-//
-//=========================================
-
-#if (CYBLAFB_KD_GRAPHICS_QUIRK && CYBLAFB_DEBUG)
- if (disabled) { \
- printk("********\n");\
- dump_stack();\
- return val;\
- }
-
-#elif CYBLAFB_KD_GRAPHICS_QUIRK
-#define KD_GRAPHICS_RETURN(val)\
- if (disabled) {\
- return val;\
- }
-#else
-#define KD_GRAPHICS_RETURN(val)
-#endif
-
-//=========================================
-//
-// Port access macros for memory mapped io
-//
-//=========================================
-
-#define out8(r, v) writeb(v, io_virt + r)
-#define out32(r, v) writel(v, io_virt + r)
-#define in8(r) readb(io_virt + r)
-#define in32(r) readl(io_virt + r)
-
-//======================================
-//
-// Hardware access inline functions
-//
-//======================================
-
-static inline u8 read3X4(u32 reg)
-{
- out8(0x3D4, reg);
- return in8(0x3D5);
-}
-
-static inline u8 read3C4(u32 reg)
-{
- out8(0x3C4, reg);
- return in8(0x3C5);
-}
-
-static inline u8 read3CE(u32 reg)
-{
- out8(0x3CE, reg);
- return in8(0x3CF);
-}
-
-static inline void write3X4(u32 reg, u8 val)
-{
- out8(0x3D4, reg);
- out8(0x3D5, val);
-}
-
-static inline void write3C4(u32 reg, u8 val)
-{
- out8(0x3C4, reg);
- out8(0x3C5, val);
-}
-
-static inline void write3CE(u32 reg, u8 val)
-{
- out8(0x3CE, reg);
- out8(0x3CF, val);
-}
-
-static inline void write3C0(u32 reg, u8 val)
-{
- in8(0x3DA); // read to reset index
- out8(0x3C0, reg);
- out8(0x3C0, val);
-}
-
-//=================================================
-//
-// Enable memory mapped io and unprotect registers
-//
-//=================================================
-
-static void enable_mmio(void)
-{
- u8 tmp;
-
- outb(0x0B, 0x3C4);
- inb(0x3C5); // Set NEW mode
- outb(SR0E, 0x3C4); // write enable a lot of extended ports
- outb(0x80, 0x3C5);
-
- outb(SR11, 0x3C4); // write enable those extended ports that
- outb(0x87, 0x3C5); // are not affected by SR0E_New
-
- outb(CR1E, 0x3d4); // clear write protect bit for port 0x3c2
- tmp = inb(0x3d5) & 0xBF;
- outb(CR1E, 0x3d4);
- outb(tmp, 0x3d5);
-
- outb(CR39, 0x3D4);
- outb(inb(0x3D5) | 0x01, 0x3D5); // Enable mmio
-}
-
-//=================================================
-//
-// Set pixel clock VCLK1
-// - multipliers set elswhere
-// - freq in units of 0.01 MHz
-//
-// Hardware bug: SR18 >= 250 is broken for the
-// cyberblade/i1
-//
-//=================================================
-
-static void set_vclk(struct cyblafb_par *par, int freq)
-{
- u32 m, n, k;
- int f, fi, d, di;
- u8 lo = 0, hi = 0;
-
- d = 2000;
- k = freq >= 10000 ? 0 : freq >= 5000 ? 1 : freq >= 2500 ? 2 : 3;
- for (m = 0; m < 64; m++)
- for (n = 0; n < 250; n++) {
- fi = (int)(((5864727 * (n + 8)) /
- ((m + 2) * (1 << k))) >> 12);
- if ((di = abs(fi - freq)) < d) {
- d = di;
- f = fi;
- lo = (u8) n;
- hi = (u8) ((k << 6) | m);
- }
- }
- write3C4(SR19, hi);
- write3C4(SR18, lo);
- if (verbosity > 0)
- output("pixclock = %d.%02d MHz, k/m/n %x %x %x\n",
- freq / 100, freq % 100, (hi & 0xc0) >> 6, hi & 0x3f, lo);
-}
-
-//================================================
-//
-// Cyberblade specific Graphics Engine (GE) setup
-//
-//================================================
-
-static void cyblafb_setup_GE(int pitch, int bpp)
-{
- KD_GRAPHICS_RETURN();
-
- switch (bpp) {
- case 8:
- basestride = ((pitch >> 3) << 20) | (0 << 29);
- break;
- case 15:
- basestride = ((pitch >> 3) << 20) | (5 << 29);
- break;
- case 16:
- basestride = ((pitch >> 3) << 20) | (1 << 29);
- break;
- case 24:
- case 32:
- basestride = ((pitch >> 3) << 20) | (2 << 29);
- break;
- }
-
- write3X4(CR36, 0x90); // reset GE
- write3X4(CR36, 0x80); // enable GE
- out32(GE24, 1 << 7); // reset all GE pointers by toggling
- out32(GE24, 0); // d7 of GE24
- write3X4(CR2D, 0x00); // GE Timinigs, no delays
- out32(GE6C, 0); // Pattern and Style, p 129, ok
-}
-
-//=====================================================================
-//
-// Cyberblade specific syncing
-//
-// A timeout might be caused by disabled mmio.
-// Cause:
-// - bit CR39 & 1 == 0 upon return, X trident driver bug
-// - kdm bug (KD_GRAPHICS not set on first switch)
-// - kernel design flaw (it believes in the correctness
-// of kdm/X
-// First we try to sync ignoring that problem, as most of the
-// time that will succeed immediately and the enable_mmio()
-// would only degrade performance.
-//
-//=====================================================================
-
-static int cyblafb_sync(struct fb_info *info)
-{
- u32 status, i = 100000;
-
- KD_GRAPHICS_RETURN(0);
-
- while (((status = in32(GE20)) & 0xFe800000) && i != 0)
- i--;
-
- if (i == 0) {
- enable_mmio();
- i = 1000000;
- while (((status = in32(GE20)) & 0xFA800000) && i != 0)
- i--;
- if (i == 0) {
- output("GE Timeout, status: %x\n", status);
- if (status & 0x80000000)
- output("Bresenham Engine : Busy\n");
- if (status & 0x40000000)
- output("Setup Engine : Busy\n");
- if (status & 0x20000000)
- output("SP / DPE : Busy\n");
- if (status & 0x10000000)
- output("Memory Interface : Busy\n");
- if (status & 0x08000000)
- output("Com Lst Proc : Busy\n");
- if (status & 0x04000000)
- output("Block Write : Busy\n");
- if (status & 0x02000000)
- output("Command Buffer : Full\n");
- if (status & 0x01000000)
- output("RESERVED : Busy\n");
- if (status & 0x00800000)
- output("PCI Write Buffer : Busy\n");
- cyblafb_setup_GE(info->var.xres,
- info->var.bits_per_pixel);
- }
- }
-
- return 0;
-}
-
-//==============================
-//
-// Cyberblade specific fillrect
-//
-//==============================
-
-static void cyblafb_fillrect(struct fb_info *info, const struct fb_fillrect *fr)
-{
- u32 bpp = info->var.bits_per_pixel, col, desty, height;
-
- KD_GRAPHICS_RETURN();
-
- switch (bpp) {
- default:
- case 8:
- col = fr->color;
- col |= col << 8;
- col |= col << 16;
- break;
- case 16:
- col = ((u32 *) (info->pseudo_palette))[fr->color];
- col |= col << 16;
- break;
- case 32:
- col = ((u32 *) (info->pseudo_palette))[fr->color];
- break;
- }
-
- desty = fr->dy;
- height = fr->height;
- while (height) {
- out32(GEB8, basestride | ((desty * info->var.xres_virtual *
- bpp) >> 6));
- out32(GE60, col);
- out32(GE48, fr->rop ? 0x66 : ROP_S);
- out32(GE44, 0x20000000 | 1 << 19 | 1 << 4 | 2 << 2);
- out32(GE08, point(fr->dx, 0));
- out32(GE0C, point(fr->dx + fr->width - 1,
- height > 4096 ? 4095 : height - 1));
- if (likely(height <= 4096))
- return;
- desty += 4096;
- height -= 4096;
- }
-}
-
-//================================================
-//
-// Cyberblade specific copyarea
-//
-// This function silently assumes that it never
-// will be called with width or height exceeding
-// 4096.
-//
-//================================================
-
-static void cyblafb_copyarea(struct fb_info *info, const struct fb_copyarea *ca)
-{
- u32 s1, s2, d1, d2, direction;
-
- KD_GRAPHICS_RETURN();
-
- s1 = point(ca->sx, 0);
- s2 = point(ca->sx + ca->width - 1, ca->height - 1);
- d1 = point(ca->dx, 0);
- d2 = point(ca->dx + ca->width - 1, ca->height - 1);
-
- if ((ca->sy > ca->dy) || ((ca->sy == ca->dy) && (ca->sx > ca->dx)))
- direction = 0;
- else
- direction = 2;
-
- out32(GEB8, basestride | ((ca->dy * info->var.xres_virtual *
- info->var.bits_per_pixel) >> 6));
- out32(GEC8, basestride | ((ca->sy * info->var.xres_virtual *
- info->var.bits_per_pixel) >> 6));
- out32(GE44, 0xa0000000 | 1 << 19 | 1 << 2 | direction);
- out32(GE00, direction ? s2 : s1);
- out32(GE04, direction ? s1 : s2);
- out32(GE08, direction ? d2 : d1);
- out32(GE0C, direction ? d1 : d2);
-}
-
-//=======================================================================
-//
-// Cyberblade specific imageblit
-//
-// Accelerated for the most usual case, blitting 1 - bit deep
-// character images. Everything else is passed to the generic imageblit
-// unless it is so insane that it is better to printk an alert.
-//
-// Hardware bug: _Never_ blit across pixel column 2048, that will lock
-// the system. We split those blit requests into three blitting
-// operations.
-//
-//=======================================================================
-
-static void cyblafb_imageblit(struct fb_info *info,
- const struct fb_image *image)
-{
- u32 fgcol, bgcol;
- u32 *pd = (u32 *) image->data;
- u32 bpp = info->var.bits_per_pixel;
-
- KD_GRAPHICS_RETURN();
-
- // Used only for drawing the penguine (image->depth > 1)
- if (image->depth != 1) {
- cfb_imageblit(info, image);
- return;
- }
- // That should never happen, but it would be fatal
- if (image->width == 0 || image->height == 0) {
- output("imageblit: width/height 0 detected\n");
- return;
- }
-
- if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
- info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
- fgcol = ((u32 *) (info->pseudo_palette))[image->fg_color];
- bgcol = ((u32 *) (info->pseudo_palette))[image->bg_color];
- } else {
- fgcol = image->fg_color;
- bgcol = image->bg_color;
- }
-
- switch (bpp) {
- case 8:
- fgcol |= fgcol << 8;
- bgcol |= bgcol << 8;
- case 16:
- fgcol |= fgcol << 16;
- bgcol |= bgcol << 16;
- default:
- break;
- }
-
- out32(GEB8, basestride | ((image->dy * info->var.xres_virtual *
- bpp) >> 6));
- out32(GE60, fgcol);
- out32(GE64, bgcol);
-
- if (!(image->dx < 2048 && (image->dx + image->width - 1) >= 2048)) {
- u32 dds = ((image->width + 31) >> 5) * image->height;
- out32(GE44, 0xa0000000 | 1 << 20 | 1 << 19);
- out32(GE08, point(image->dx, 0));
- out32(GE0C, point(image->dx + image->width - 1,
- image->height - 1));
- while (dds--)
- out32(GE9C, *pd++);
- } else {
- int i, j;
- u32 ddstotal = (image->width + 31) >> 5;
- u32 ddsleft = (2048 - image->dx + 31) >> 5;
- u32 skipleft = ddstotal - ddsleft;
-
- out32(GE44, 0xa0000000 | 1 << 20 | 1 << 19);
- out32(GE08, point(image->dx, 0));
- out32(GE0C, point(2048 - 1, image->height - 1));
- for (i = 0; i < image->height; i++) {
- for (j = 0; j < ddsleft; j++)
- out32(GE9C, *pd++);
- pd += skipleft;
- }
-
- if (image->dx % 32) {
- out32(GE44, 0xa0000000 | 1 << 20 | 1 << 19);
- out32(GE08, point(2048, 0));
- if (image->width > ddsleft << 5)
- out32(GE0C, point(image->dx + (ddsleft << 5) -
- 1, image->height - 1));
- else
- out32(GE0C, point(image->dx + image->width - 1,
- image->height - 1));
- pd = ((u32 *) image->data) + ddstotal - skipleft - 1;
- for (i = 0; i < image->height; i++) {
- out32(GE9C, swab32(swab32(*pd) << ((32 -
- (image->dx & 31)) & 31)));
- pd += ddstotal;
- }
- }
-
- if (skipleft) {
- out32(GE44, 0xa0000000 | 1 << 20 | 1 << 19);
- out32(GE08, point(image->dx + (ddsleft << 5), 0));
- out32(GE0C, point(image->dx + image->width - 1,
- image->height - 1));
- pd = (u32 *) image->data;
- for (i = 0; i < image->height; i++) {
- pd += ddsleft;
- for (j = 0; j < skipleft; j++)
- out32(GE9C, *pd++);
- }
- }
- }
-}
-
-//==========================================================
-//
-// Check if video mode is acceptable. We change var->??? if
-// video mode is slightly off or return error otherwise.
-// info->??? must not be changed!
-//
-//==========================================================
-
-static int cyblafb_check_var(struct fb_var_screeninfo *var,
- struct fb_info *info)
-{
- int bpp = var->bits_per_pixel;
-
- //
- // we try to support 8, 16, 24 and 32 bpp modes,
- // default to 8
- //
- // there is a 24 bpp mode, but for now we change requests to 32 bpp
- // (This is what tridentfb does ... will be changed in the future)
- //
- //
- if (bpp % 8 != 0 || bpp < 8 || bpp > 32)
- bpp = 8;
- if (bpp == 24)
- bpp = var->bits_per_pixel = 32;
-
- //
- // interlaced modes are broken, fail if one is requested
- //
- if (var->vmode & FB_VMODE_INTERLACED)
- return -EINVAL;
-
- //
- // fail if requested resolution is higher than physical
- // flatpanel resolution
- //
- if ((displaytype == DISPLAY_FP) && nativex && var->xres > nativex)
- return -EINVAL;
-
- //
- // we do not allow vclk to exceed 230 MHz. If the requested
- // vclk is too high, we default to 200 MHz
- //
- if ((bpp == 32 ? 200000000 : 100000000) / var->pixclock > 23000)
- var->pixclock = (bpp == 32 ? 200000000 : 100000000) / 20000;
-
- //
- // enforce (h|v)sync_len limits
- //
- var->hsync_len &= ~7;
- if(var->hsync_len > 248)
- var->hsync_len = 248;
-
- var->vsync_len &= 15;
-
- //
- // Enforce horizontal and vertical hardware limits.
- // 1600x1200 is mentioned as a maximum, but higher resolutions could
- // work with slow refresh, small margins and short sync.
- //
- var->xres &= ~7;
-
- if (((var->xres + var->left_margin + var->right_margin +
- var->hsync_len) > (bpp == 32 ? 2040 : 4088)) ||
- ((var->yres + var->upper_margin + var->lower_margin +
- var->vsync_len) > 2047))
- return -EINVAL;
-
- if ((var->xres > 1600) || (var->yres > 1200))
- output("Mode %dx%d exceeds documented limits.\n",
- var->xres, var->yres);
- //
- // try to be smart about (x|y)res_virtual problems.
- //
- if (var->xres > var->xres_virtual)
- var->xres_virtual = var->xres;
- if (var->yres > var->yres_virtual)
- var->yres_virtual = var->yres;
-
- if (bpp == 8 || bpp == 16) {
- if (var->xres_virtual > 4088)
- var->xres_virtual = 4088;
- } else {
- if (var->xres_virtual > 2040)
- var->xres_virtual = 2040;
- }
- var->xres_virtual &= ~7;
- while (var->xres_virtual * var->yres_virtual * bpp / 8 >
- info->fix.smem_len) {
- if (var->yres_virtual > var->yres)
- var->yres_virtual--;
- else if (var->xres_virtual > var->xres)
- var->xres_virtual -= 8;
- else
- return -EINVAL;
- }
-
- switch (bpp) {
- case 8:
- var->red.offset = 0;
- var->green.offset = 0;
- var->blue.offset = 0;
- var->red.length = 6;
- var->green.length = 6;
- var->blue.length = 6;
- break;
- case 16:
- var->red.offset = 11;
- var->green.offset = 5;
- var->blue.offset = 0;
- var->red.length = 5;
- var->green.length = 6;
- var->blue.length = 5;
- break;
- case 32:
- var->red.offset = 16;
- var->green.offset = 8;
- var->blue.offset = 0;
- var->red.length = 8;
- var->green.length = 8;
- var->blue.length = 8;
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-//=====================================================================
-//
-// Pan the display
-//
-// The datasheets defines crt start address to be 20 bits wide and
-// to be programmed to CR0C, CR0D, CR1E and CR27. Actually there is
-// CR2B[5] as an undocumented extension bit. Epia BIOS 2.07 does use
-// it, so it is also safe to be used here. BTW: datasheet CR0E on page
-// 90 really is CR1E, the real CRE is documented on page 72.
-//
-// BUT:
-//
-// As of internal version 0.60 we do not use vga panning any longer.
-// Vga panning did not allow us the use of all available video memory
-// and thus prevented ywrap scrolling. We do use the "right view"
-// register now.
-//
-//
-//=====================================================================
-
-static int cyblafb_pan_display(struct fb_var_screeninfo *var,
- struct fb_info *info)
-{
- KD_GRAPHICS_RETURN(0);
-
- info->var.xoffset = var->xoffset;
- info->var.yoffset = var->yoffset;
- out32(GE10, 0x80000000 | ((var->xoffset + (var->yoffset *
- var->xres_virtual)) * var->bits_per_pixel / 32));
- return 0;
-}
-
-//============================================
-//
-// This will really help in case of a bug ...
-// dump most gaphics core registers.
-//
-//============================================
-
-static void regdump(struct cyblafb_par *par)
-{
- int i;
-
- if (verbosity < 2)
- return;
-
- printk("\n");
- for (i = 0; i <= 0xff; i++) {
- outb(i, 0x3d4);
- printk("CR%02x=%02x ", i, inb(0x3d5));
- if (i % 16 == 15)
- printk("\n");
- }
-
- outb(0x30, 0x3ce);
- outb(inb(0x3cf) | 0x40, 0x3cf);
- for (i = 0; i <= 0x1f; i++) {
- if (i == 0 || (i > 2 && i < 8) || i == 0x10 || i == 0x11
- || i == 0x16) {
- outb(i, 0x3d4);
- printk("CR%02x=%02x ", i, inb(0x3d5));
- } else
- printk("------- ");
- if (i % 16 == 15)
- printk("\n");
- }
- outb(0x30, 0x3ce);
- outb(inb(0x3cf) & 0xbf, 0x3cf);
-
- printk("\n");
- for (i = 0; i <= 0x7f; i++) {
- outb(i, 0x3ce);
- printk("GR%02x=%02x ", i, inb(0x3cf));
- if (i % 16 == 15)
- printk("\n");
- }
-
- printk("\n");
- for (i = 0; i <= 0xff; i++) {
- outb(i, 0x3c4);
- printk("SR%02x=%02x ", i, inb(0x3c5));
- if (i % 16 == 15)
- printk("\n");
- }
-
- printk("\n");
- for (i = 0; i <= 0x1F; i++) {
- inb(0x3da); // next access is index!
- outb(i, 0x3c0);
- printk("AR%02x=%02x ", i, inb(0x3c1));
- if (i % 16 == 15)
- printk("\n");
- }
- printk("\n");
-
- inb(0x3DA); // reset internal flag to 3c0 index
- outb(0x20, 0x3C0); // enable attr
-
- return;
-}
-
-//=======================================================================
-//
-// Save State
-//
-// This function is called while a switch to KD_TEXT is in progress,
-// before any of the other functions are called.
-//
-//=======================================================================
-
-static void cyblafb_save_state(struct fb_info *info)
-{
- struct cyblafb_par *par = info->par;
- if (verbosity > 0)
- output("Switching to KD_TEXT\n");
- disabled = 0;
- regdump(par);
- enable_mmio();
- return;
-}
-
-//=======================================================================
-//
-// Restore State
-//
-// This function is called while a switch to KD_GRAPHICS is in progress,
-// We have to turn on vga style panning registers again because the
-// trident driver of X does not know about GE10.
-//
-//=======================================================================
-
-static void cyblafb_restore_state(struct fb_info *info)
-{
- if (verbosity > 0)
- output("Switching to KD_GRAPHICS\n");
- out32(GE10, 0);
- disabled = 1;
- return;
-}
-
-//======================================
-//
-// Set hardware to requested video mode
-//
-//======================================
-
-static int cyblafb_set_par(struct fb_info *info)
-{
- struct cyblafb_par *par = info->par;
- u32 htotal, hdispend, hsyncstart, hsyncend, hblankstart,
- hblankend, preendfetch, vtotal, vdispend, vsyncstart,
- vsyncend, vblankstart, vblankend;
- struct fb_var_screeninfo *var = &info->var;
- int bpp = var->bits_per_pixel;
- int i;
-
- KD_GRAPHICS_RETURN(0);
-
- if (verbosity > 0)
- output("Switching to new mode: "
- "fbset -g %d %d %d %d %d -t %d %d %d %d %d %d %d\n",
- var->xres, var->yres, var->xres_virtual,
- var->yres_virtual, var->bits_per_pixel, var->pixclock,
- var->left_margin, var->right_margin, var->upper_margin,
- var->lower_margin, var->hsync_len, var->vsync_len);
-
- htotal = (var->xres + var->left_margin + var->right_margin +
- var->hsync_len) / 8 - 5;
- hdispend = var->xres / 8 - 1;
- hsyncstart = (var->xres + var->right_margin) / 8;
- hsyncend = var->hsync_len / 8;
- hblankstart = hdispend + 1;
- hblankend = htotal + 3; // should be htotal + 5, bios does it this way
- preendfetch = ((var->xres >> 3) + 1) * ((bpp + 1) >> 3);
-
- vtotal = var->yres + var->upper_margin + var->lower_margin +
- var->vsync_len - 2;
- vdispend = var->yres - 1;
- vsyncstart = var->yres + var->lower_margin;
- vblankstart = var->yres;
- vblankend = vtotal; // should be vtotal + 2, but bios does it this way
- vsyncend = var->vsync_len;
-
- enable_mmio(); // necessary! ... check X ...
-
- write3X4(CR11, read3X4(CR11) & 0x7F); // unlock cr00 .. cr07
-
- write3CE(GR30, 8);
-
- if ((displaytype == DISPLAY_FP) && var->xres < nativex) {
-
- // stretch or center ?
-
- out8(0x3C2, 0xEB);
-
- write3CE(GR30, read3CE(GR30) | 0x81); // shadow mode on
-
- if (center) {
- write3CE(GR52, (read3CE(GR52) & 0x7C) | 0x80);
- write3CE(GR53, (read3CE(GR53) & 0x7C) | 0x80);
- } else if (stretch) {
- write3CE(GR5D, 0);
- write3CE(GR52, (read3CE(GR52) & 0x7C) | 1);
- write3CE(GR53, (read3CE(GR53) & 0x7C) | 1);
- }
-
- } else {
- out8(0x3C2, 0x2B);
- write3CE(GR30, 8);
- }
-
- //
- // Setup CRxx regs
- //
-
- write3X4(CR00, htotal & 0xFF);
- write3X4(CR01, hdispend & 0xFF);
- write3X4(CR02, hblankstart & 0xFF);
- write3X4(CR03, hblankend & 0x1F);
- write3X4(CR04, hsyncstart & 0xFF);
- write3X4(CR05, (hsyncend & 0x1F) | ((hblankend & 0x20) << 2));
- write3X4(CR06, vtotal & 0xFF);
- write3X4(CR07, (vtotal & 0x100) >> 8 |
- (vdispend & 0x100) >> 7 |
- (vsyncstart & 0x100) >> 6 |
- (vblankstart & 0x100) >> 5 |
- 0x10 |
- (vtotal & 0x200) >> 4 |
- (vdispend & 0x200) >> 3 | (vsyncstart & 0x200) >> 2);
- write3X4(CR08, 0);
- write3X4(CR09, (vblankstart & 0x200) >> 4 | 0x40 | // FIX !!!
- ((info->var.vmode & FB_VMODE_DOUBLE) ? 0x80 : 0));
- write3X4(CR0A, 0); // Init to some reasonable default
- write3X4(CR0B, 0); // Init to some reasonable default
- write3X4(CR0C, 0); // Offset 0
- write3X4(CR0D, 0); // Offset 0
- write3X4(CR0E, 0); // Init to some reasonable default
- write3X4(CR0F, 0); // Init to some reasonable default
- write3X4(CR10, vsyncstart & 0xFF);
- write3X4(CR11, (vsyncend & 0x0F));
- write3X4(CR12, vdispend & 0xFF);
- write3X4(CR13, ((info->var.xres_virtual * bpp) / (4 * 16)) & 0xFF);
- write3X4(CR14, 0x40); // double word mode
- write3X4(CR15, vblankstart & 0xFF);
- write3X4(CR16, vblankend & 0xFF);
- write3X4(CR17, 0xE3);
- write3X4(CR18, 0xFF);
- // CR19: needed for interlaced modes ... ignore it for now
- write3X4(CR1A, 0x07); // Arbitration Control Counter 1
- write3X4(CR1B, 0x07); // Arbitration Control Counter 2
- write3X4(CR1C, 0x07); // Arbitration Control Counter 3
- write3X4(CR1D, 0x00); // Don't know, doesn't hurt ; -)
- write3X4(CR1E, (info->var.vmode & FB_VMODE_INTERLACED) ? 0x84 : 0x80);
- // CR1F: do not set, contains BIOS info about memsize
- write3X4(CR20, 0x20); // enabe wr buf, disable 16bit planar mode
- write3X4(CR21, 0x20); // enable linear memory access
- // CR22: RO cpu latch readback
- // CR23: ???
- // CR24: RO AR flag state
- // CR25: RAMDAC rw timing, pclk buffer tristate control ????
- // CR26: ???
- write3X4(CR27, (vdispend & 0x400) >> 6 |
- (vsyncstart & 0x400) >> 5 |
- (vblankstart & 0x400) >> 4 |
- (vtotal & 0x400) >> 3 |
- 0x8);
- // CR28: ???
- write3X4(CR29, (read3X4(CR29) & 0xCF) | ((((info->var.xres_virtual *
- bpp) / (4 * 16)) & 0x300) >> 4));
- write3X4(CR2A, read3X4(CR2A) | 0x40);
- write3X4(CR2B, (htotal & 0x100) >> 8 |
- (hdispend & 0x100) >> 7 |
- // (0x00 & 0x100) >> 6 | hinterlace para bit 8 ???
- (hsyncstart & 0x100) >> 5 |
- (hblankstart & 0x100) >> 4);
- // CR2C: ???
- // CR2D: initialized in cyblafb_setup_GE()
- write3X4(CR2F, 0x92); // conservative, better signal quality
- // CR30: reserved
- // CR31: reserved
- // CR32: reserved
- // CR33: reserved
- // CR34: disabled in CR36
- // CR35: disabled in CR36
- // CR36: initialized in cyblafb_setup_GE
- // CR37: i2c, ignore for now
- write3X4(CR38, (bpp == 8) ? 0x00 : //
- (bpp == 16) ? 0x05 : // highcolor
- (bpp == 24) ? 0x29 : // packed 24bit truecolor
- (bpp == 32) ? 0x09 : 0); // truecolor, 16 bit pixelbus
- write3X4(CR39, 0x01 | // MMIO enable
- (pcirb ? 0x02 : 0) | // pci read burst enable
- (pciwb ? 0x04 : 0)); // pci write burst enable
- write3X4(CR55, 0x1F | // pci clocks * 2 for STOP# during 1st data phase
- (pcirr ? 0x40 : 0) | // pci read retry enable
- (pciwr ? 0x80 : 0)); // pci write retry enable
- write3X4(CR56, preendfetch >> 8 < 2 ? (preendfetch >> 8 & 0x01) | 2
- : 0);
- write3X4(CR57, preendfetch >> 8 < 2 ? preendfetch & 0xff : 0);
- write3X4(CR58, 0x82); // Bios does this .... don't know more
- //
- // Setup SRxx regs
- //
- write3C4(SR00, 3);
- write3C4(SR01, 1); //set char clock 8 dots wide
- write3C4(SR02, 0x0F); //enable 4 maps needed in chain4 mode
- write3C4(SR03, 0); //no character map select
- write3C4(SR04, 0x0E); //memory mode: ext mem, even, chain4
-
- out8(0x3C4, 0x0b);
- in8(0x3C5); // Set NEW mode
- write3C4(SR0D, 0x00); // test ... check
-
- set_vclk(par, (bpp == 32 ? 200000000 : 100000000)
- / info->var.pixclock); //SR18, SR19
-
- //
- // Setup GRxx regs
- //
- write3CE(GR00, 0x00); // test ... check
- write3CE(GR01, 0x00); // test ... check
- write3CE(GR02, 0x00); // test ... check
- write3CE(GR03, 0x00); // test ... check
- write3CE(GR04, 0x00); // test ... check
- write3CE(GR05, 0x40); // no CGA compat, allow 256 col
- write3CE(GR06, 0x05); // graphics mode
- write3CE(GR07, 0x0F); // planes?
- write3CE(GR08, 0xFF); // test ... check
- write3CE(GR0F, (bpp == 32) ? 0x1A : 0x12); // vclk / 2 if 32bpp, chain4
- write3CE(GR20, 0xC0); // test ... check
- write3CE(GR2F, 0xA0); // PCLK = VCLK, no skew,
-
- //
- // Setup ARxx regs
- //
- for (i = 0; i < 0x10; i++) // set AR00 .. AR0f
- write3C0(i, i);
- write3C0(AR10, 0x41); // graphics mode and support 256 color modes
- write3C0(AR12, 0x0F); // planes
- write3C0(AR13, 0); // horizontal pel panning
- in8(0x3DA); // reset internal flag to 3c0 index
- out8(0x3C0, 0x20); // enable attr
-
- //
- // Setup hidden RAMDAC command register
- //
- in8(0x3C8); // these reads are
- in8(0x3C6); // necessary to
- in8(0x3C6); // unmask the RAMDAC
- in8(0x3C6); // command reg, otherwise
- in8(0x3C6); // we would write the pixelmask reg!
- out8(0x3C6, (bpp == 8) ? 0x00 : // 256 colors
- (bpp == 15) ? 0x10 : //
- (bpp == 16) ? 0x30 : // hicolor
- (bpp == 24) ? 0xD0 : // truecolor
- (bpp == 32) ? 0xD0 : 0); // truecolor
- in8(0x3C8);
-
- //
- // GR31 is not mentioned in the datasheet
- //
- if (displaytype == DISPLAY_FP)
- write3CE(GR31, (read3CE(GR31) & 0x8F) |
- ((info->var.yres > 1024) ? 0x50 :
- (info->var.yres > 768) ? 0x30 :
- (info->var.yres > 600) ? 0x20 :
- (info->var.yres > 480) ? 0x10 : 0));
-
- info->fix.visual = (bpp == 8) ? FB_VISUAL_PSEUDOCOLOR
- : FB_VISUAL_TRUECOLOR;
- info->fix.line_length = info->var.xres_virtual * (bpp >> 3);
- info->cmap.len = (bpp == 8) ? 256 : 16;
-
- //
- // init acceleration engine
- //
- cyblafb_setup_GE(info->var.xres_virtual, info->var.bits_per_pixel);
-
- //
- // Set/clear flags to allow proper scroll mode selection.
- //
- if (var->xres == var->xres_virtual)
- info->flags &= ~FBINFO_HWACCEL_XPAN;
- else
- info->flags |= FBINFO_HWACCEL_XPAN;
-
- if (var->yres == var->yres_virtual)
- info->flags &= ~FBINFO_HWACCEL_YPAN;
- else
- info->flags |= FBINFO_HWACCEL_YPAN;
-
- if (info->fix.smem_len !=
- var->xres_virtual * var->yres_virtual * bpp / 8)
- info->flags &= ~FBINFO_HWACCEL_YWRAP;
- else
- info->flags |= FBINFO_HWACCEL_YWRAP;
-
- regdump(par);
-
- return 0;
-}
-
-//========================
-//
-// Set one color register
-//
-//========================
-
-static int cyblafb_setcolreg(unsigned regno, unsigned red, unsigned green,
- unsigned blue, unsigned transp,
- struct fb_info *info)
-{
- int bpp = info->var.bits_per_pixel;
-
- KD_GRAPHICS_RETURN(0);
-
- if (regno >= info->cmap.len)
- return 1;
-
- if (bpp == 8) {
- out8(0x3C6, 0xFF);
- out8(0x3C8, regno);
- out8(0x3C9, red >> 10);
- out8(0x3C9, green >> 10);
- out8(0x3C9, blue >> 10);
-
- } else if (regno < 16) {
- if (bpp == 16) // RGB 565
- ((u32 *) info->pseudo_palette)[regno] =
- (red & 0xF800) |
- ((green & 0xFC00) >> 5) |
- ((blue & 0xF800) >> 11);
- else if (bpp == 32) // ARGB 8888
- ((u32 *) info->pseudo_palette)[regno] =
- ((transp & 0xFF00) << 16) |
- ((red & 0xFF00) << 8) |
- ((green & 0xFF00)) | ((blue & 0xFF00) >> 8);
- }
-
- return 0;
-}
-
-//==========================================================
-//
-// Try blanking the screen. For flat panels it does nothing
-//
-//==========================================================
-
-static int cyblafb_blank(int blank_mode, struct fb_info *info)
-{
- unsigned char PMCont, DPMSCont;
-
- KD_GRAPHICS_RETURN(0);
-
- if (displaytype == DISPLAY_FP)
- return 0;
-
- out8(0x83C8, 0x04); // DPMS Control
- PMCont = in8(0x83C6) & 0xFC;
-
- DPMSCont = read3CE(GR23) & 0xFC;
-
- switch (blank_mode) {
- case FB_BLANK_UNBLANK: // Screen: On, HSync: On, VSync: On
- case FB_BLANK_NORMAL: // Screen: Off, HSync: On, VSync: On
- PMCont |= 0x03;
- DPMSCont |= 0x00;
- break;
- case FB_BLANK_HSYNC_SUSPEND: // Screen: Off, HSync: Off, VSync: On
- PMCont |= 0x02;
- DPMSCont |= 0x01;
- break;
- case FB_BLANK_VSYNC_SUSPEND: // Screen: Off, HSync: On, VSync: Off
- PMCont |= 0x02;
- DPMSCont |= 0x02;
- break;
- case FB_BLANK_POWERDOWN: // Screen: Off, HSync: Off, VSync: Off
- PMCont |= 0x00;
- DPMSCont |= 0x03;
- break;
- }
-
- write3CE(GR23, DPMSCont);
- out8(0x83C8, 4);
- out8(0x83C6, PMCont);
- //
- // let fbcon do a softblank for us
- //
- return (blank_mode == FB_BLANK_NORMAL) ? 1 : 0;
-}
-
-static struct fb_ops cyblafb_ops __devinitdata = {
- .owner = THIS_MODULE,
- .fb_setcolreg = cyblafb_setcolreg,
- .fb_pan_display = cyblafb_pan_display,
- .fb_blank = cyblafb_blank,
- .fb_check_var = cyblafb_check_var,
- .fb_set_par = cyblafb_set_par,
- .fb_fillrect = cyblafb_fillrect,
- .fb_copyarea = cyblafb_copyarea,
- .fb_imageblit = cyblafb_imageblit,
- .fb_sync = cyblafb_sync,
- .fb_restore_state = cyblafb_restore_state,
- .fb_save_state = cyblafb_save_state,
-};
-
-//==========================================================================
-//
-// getstartupmode() decides about the inital video mode
-//
-// There is no reason to use modedb, a lot of video modes there would
-// need altered timings to display correctly. So I decided that it is much
-// better to provide a limited optimized set of modes plus the option of
-// using the mode in effect at startup time (might be selected using the
-// vga=??? parameter). After that the user might use fbset to select any
-// mode he likes, check_var will not try to alter geometry parameters as
-// it would be necessary otherwise.
-//
-//==========================================================================
-
-static int __devinit getstartupmode(struct fb_info *info)
-{
- u32 htotal, hdispend, hsyncstart, hsyncend, hblankstart, hblankend,
- vtotal, vdispend, vsyncstart, vsyncend, vblankstart, vblankend,
- cr00, cr01, cr02, cr03, cr04, cr05, cr2b,
- cr06, cr07, cr09, cr10, cr11, cr12, cr15, cr16, cr27,
- cr38, sr0d, sr18, sr19, gr0f, fi, pxclkdiv, vclkdiv, tmp, i;
-
- struct modus {
- int xres; int vxres; int yres; int vyres;
- int bpp; int pxclk;
- int left_margin; int right_margin;
- int upper_margin; int lower_margin;
- int hsync_len; int vsync_len;
- } modedb[5] = {
- {
- 0, 2048, 0, 4096, 0, 0, 0, 0, 0, 0, 0, 0}, {
- 640, 2048, 480, 4096, 0, 0, -40, 24, 17, 0, 216, 3}, {
- 800, 2048, 600, 4096, 0, 0, 96, 24, 14, 0, 136, 11}, {
- 1024, 2048, 768, 4096, 0, 0, 144, 24, 29, 0, 120, 3}, {
- 1280, 2048, 1024, 4096, 0, 0, 232, 16, 39, 0, 160, 3}
- };
-
- outb(0x00, 0x3d4); cr00 = inb(0x3d5);
- outb(0x01, 0x3d4); cr01 = inb(0x3d5);
- outb(0x02, 0x3d4); cr02 = inb(0x3d5);
- outb(0x03, 0x3d4); cr03 = inb(0x3d5);
- outb(0x04, 0x3d4); cr04 = inb(0x3d5);
- outb(0x05, 0x3d4); cr05 = inb(0x3d5);
- outb(0x06, 0x3d4); cr06 = inb(0x3d5);
- outb(0x07, 0x3d4); cr07 = inb(0x3d5);
- outb(0x09, 0x3d4); cr09 = inb(0x3d5);
- outb(0x10, 0x3d4); cr10 = inb(0x3d5);
- outb(0x11, 0x3d4); cr11 = inb(0x3d5);
- outb(0x12, 0x3d4); cr12 = inb(0x3d5);
- outb(0x15, 0x3d4); cr15 = inb(0x3d5);
- outb(0x16, 0x3d4); cr16 = inb(0x3d5);
- outb(0x27, 0x3d4); cr27 = inb(0x3d5);
- outb(0x2b, 0x3d4); cr2b = inb(0x3d5);
- outb(0x38, 0x3d4); cr38 = inb(0x3d5);
-
- outb(0x0b, 0x3c4);
- inb(0x3c5);
-
- outb(0x0d, 0x3c4); sr0d = inb(0x3c5);
- outb(0x18, 0x3c4); sr18 = inb(0x3c5);
- outb(0x19, 0x3c4); sr19 = inb(0x3c5);
- outb(0x0f, 0x3ce); gr0f = inb(0x3cf);
-
- htotal = cr00 | (cr2b & 0x01) << 8;
- hdispend = cr01 | (cr2b & 0x02) << 7;
- hblankstart = cr02 | (cr2b & 0x10) << 4;
- hblankend = (cr03 & 0x1f) | (cr05 & 0x80) >> 2;
- hsyncstart = cr04 | (cr2b & 0x08) << 5;
- hsyncend = cr05 & 0x1f;
-
- modedb[0].xres = hblankstart * 8;
- modedb[0].hsync_len = hsyncend * 8;
- modedb[0].right_margin = hsyncstart * 8 - modedb[0].xres;
- modedb[0].left_margin = (htotal + 5) * 8 - modedb[0].xres -
- modedb[0].right_margin - modedb[0].hsync_len;
-
- vtotal = cr06 | (cr07 & 0x01) << 8 | (cr07 & 0x20) << 4
- | (cr27 & 0x80) << 3;
- vdispend = cr12 | (cr07 & 0x02) << 7 | (cr07 & 0x40) << 3
- | (cr27 & 0x10) << 6;
- vsyncstart = cr10 | (cr07 & 0x04) << 6 | (cr07 & 0x80) << 2
- | (cr27 & 0x20) << 5;
- vsyncend = cr11 & 0x0f;
- vblankstart = cr15 | (cr07 & 0x08) << 5 | (cr09 & 0x20) << 4
- | (cr27 & 0x40) << 4;
- vblankend = cr16;
-
- modedb[0].yres = vdispend + 1;
- modedb[0].vsync_len = vsyncend;
- modedb[0].lower_margin = vsyncstart - modedb[0].yres;
- modedb[0].upper_margin = vtotal - modedb[0].yres -
- modedb[0].lower_margin - modedb[0].vsync_len + 2;
-
- tmp = cr38 & 0x3c;
- modedb[0].bpp = tmp == 0 ? 8 : tmp == 4 ? 16 : tmp == 28 ? 24 :
- tmp == 8 ? 32 : 8;
-
- fi = ((5864727 * (sr18 + 8)) /
- (((sr19 & 0x3f) + 2) * (1 << ((sr19 & 0xc0) >> 6)))) >> 12;
- pxclkdiv = ((gr0f & 0x08) >> 3 | (gr0f & 0x40) >> 5) + 1;
- tmp = sr0d & 0x06;
- vclkdiv = tmp == 0 ? 2 : tmp == 2 ? 4 : tmp == 4 ? 8 : 3; // * 2 !
- modedb[0].pxclk = ((100000000 * pxclkdiv * vclkdiv) >> 1) / fi;
-
- if (verbosity > 0)
- output("detected startup mode: "
- "fbset -g %d %d %d ??? %d -t %d %d %d %d %d %d %d\n",
- modedb[0].xres, modedb[0].yres, modedb[0].xres,
- modedb[0].bpp, modedb[0].pxclk, modedb[0].left_margin,
- modedb[0].right_margin, modedb[0].upper_margin,
- modedb[0].lower_margin, modedb[0].hsync_len,
- modedb[0].vsync_len);
-
- //
- // We use this goto target in case of a failed check_var. No, I really
- // do not want to do it in another way!
- //
-
- tryagain:
-
- i = (mode == NULL) ? 0 :
- !strncmp(mode, "640x480", 7) ? 1 :
- !strncmp(mode, "800x600", 7) ? 2 :
- !strncmp(mode, "1024x768", 8) ? 3 :
- !strncmp(mode, "1280x1024", 9) ? 4 : 0;
-
- ref = (ref < 50) ? 50 : (ref > 85) ? 85 : ref;
-
- if (i == 0) {
- info->var.pixclock = modedb[i].pxclk;
- info->var.bits_per_pixel = modedb[i].bpp;
- } else {
- info->var.pixclock = (100000000 /
- ((modedb[i].left_margin +
- modedb[i].xres +
- modedb[i].right_margin +
- modedb[i].hsync_len) *
- (modedb[i].upper_margin +
- modedb[i].yres +
- modedb[i].lower_margin +
- modedb[i].vsync_len) * ref / 10000));
- info->var.bits_per_pixel = bpp;
- }
-
- info->var.left_margin = modedb[i].left_margin;
- info->var.right_margin = modedb[i].right_margin;
- info->var.xres = modedb[i].xres;
- if (!(modedb[i].yres == 1280 && modedb[i].bpp == 32))
- info->var.xres_virtual = modedb[i].vxres;
- else
- info->var.xres_virtual = modedb[i].xres;
- info->var.xoffset = 0;
- info->var.hsync_len = modedb[i].hsync_len;
- info->var.upper_margin = modedb[i].upper_margin;
- info->var.yres = modedb[i].yres;
- info->var.yres_virtual = modedb[i].vyres;
- info->var.yoffset = 0;
- info->var.lower_margin = modedb[i].lower_margin;
- info->var.vsync_len = modedb[i].vsync_len;
- info->var.sync = 0;
- info->var.vmode = FB_VMODE_NONINTERLACED;
-
- if (cyblafb_check_var(&info->var, info)) {
- // 640x480 - 8@75 should really never fail. One case would
- // be fp == 1 and nativex < 640 ... give up then
- if (i == 1 && bpp == 8 && ref == 75) {
- output("Can't find a valid mode :-(\n");
- return -EINVAL;
- }
- // Our detected mode is unlikely to fail. If it does,
- // try 640x480 - 8@75 ...
- if (i == 0) {
- mode = "640x480";
- bpp = 8;
- ref = 75;
- output("Detected mode failed check_var! "
- "Trying 640x480 - 8@75\n");
- goto tryagain;
- }
- // A specified video mode failed for some reason.
- // Try the startup mode first
- output("Specified mode '%s' failed check! "
- "Falling back to startup mode.\n", mode);
- mode = NULL;
- goto tryagain;
- }
-
- return 0;
-}
-
-//========================================================
-//
-// Detect activated memory size. Undefined values require
-// memsize parameter.
-//
-//========================================================
-
-static unsigned int __devinit get_memsize(void)
-{
- unsigned char tmp;
- unsigned int k;
-
- if (memsize)
- k = memsize * Kb;
- else {
- tmp = read3X4(CR1F) & 0x0F;
- switch (tmp) {
- case 0x03:
- k = 1 * 1024 * 1024;
- break;
- case 0x07:
- k = 2 * 1024 * 1024;
- break;
- case 0x0F:
- k = 4 * 1024 * 1024;
- break;
- case 0x04:
- k = 8 * 1024 * 1024;
- break;
- default:
- k = 1 * 1024 * 1024;
- output("Unknown memory size code %x in CR1F."
- " We default to 1 Mb for now, please"
- " do provide a memsize parameter!\n", tmp);
- }
- }
-
- if (verbosity > 0)
- output("framebuffer size = %d Kb\n", k / Kb);
- return k;
-}
-
-//=========================================================
-//
-// Detect if a flat panel monitor connected to the special
-// interface is active. Override is possible by fp and crt
-// parameters.
-//
-//=========================================================
-
-static unsigned int __devinit get_displaytype(void)
-{
- if (fp)
- return DISPLAY_FP;
- if (crt)
- return DISPLAY_CRT;
- return (read3CE(GR33) & 0x10) ? DISPLAY_FP : DISPLAY_CRT;
-}
-
-//=====================================
-//
-// Get native resolution of flat panel
-//
-//=====================================
-
-static int __devinit get_nativex(void)
-{
- int x, y, tmp;
-
- if (nativex)
- return nativex;
-
- tmp = (read3CE(GR52) >> 4) & 3;
-
- switch (tmp) {
- case 0: x = 1280; y = 1024;
- break;
- case 2: x = 1024; y = 768;
- break;
- case 3: x = 800; y = 600;
- break;
- case 4: x = 1400; y = 1050;
- break;
- case 1:
- default:
- x = 640; y = 480;
- break;
- }
-
- if (verbosity > 0)
- output("%dx%d flat panel found\n", x, y);
- return x;
-}
-
-static int __devinit cybla_pci_probe(struct pci_dev *dev,
- const struct pci_device_id *id)
-{
- struct fb_info *info;
- struct cyblafb_par *par;
-
- info = framebuffer_alloc(sizeof(struct cyblafb_par), &dev->dev);
- if (!info)
- goto errout_alloc_info;
-
- info->pixmap.addr = kzalloc(CYBLAFB_PIXMAPSIZE, GFP_KERNEL);
- if (!info->pixmap.addr) {
- output("allocation of pixmap buffer failed!\n");
- goto errout_alloc_pixmap;
- }
- info->pixmap.size = CYBLAFB_PIXMAPSIZE - 4;
- info->pixmap.buf_align = 4;
- info->pixmap.access_align = 32;
- info->pixmap.flags = FB_PIXMAP_SYSTEM;
- info->pixmap.scan_align = 4;
-
- par = info->par;
- par->ops = cyblafb_ops;
-
- info->fix = cyblafb_fix;
- info->fbops = &par->ops;
- info->fix = cyblafb_fix;
-
- if (pci_enable_device(dev)) {
- output("could not enable device!\n");
- goto errout_enable;
- }
- // might already be requested by vga console or vesafb,
- // so we do care about success
- if (!request_region(0x3c0, 0x20, "cyblafb")) {
- output("region 0x3c0/0x20 already reserved\n");
- vesafb |= 1;
-
- }
- //
- // Graphics Engine Registers
- //
- if (!request_region(GEBase, 0x100, "cyblafb")) {
- output("region %#x/0x100 already reserved\n", GEBase);
- vesafb |= 2;
- }
-
- regdump(par);
-
- enable_mmio();
-
- // setup MMIO region
- info->fix.mmio_start = pci_resource_start(dev, 1);
- info->fix.mmio_len = 0x20000;
-
- if (!request_mem_region(info->fix.mmio_start,
- info->fix.mmio_len, "cyblafb")) {
- output("request_mem_region failed for mmio region!\n");
- goto errout_mmio_reqmem;
- }
-
- io_virt = ioremap_nocache(info->fix.mmio_start, info->fix.mmio_len);
-
- if (!io_virt) {
- output("ioremap failed for mmio region\n");
- goto errout_mmio_remap;
- }
- // setup framebuffer memory ... might already be requested
- // by vesafb. Not to fail in case of an unsuccessful request
- // is useful if both are loaded.
- info->fix.smem_start = pci_resource_start(dev, 0);
- info->fix.smem_len = get_memsize();
-
- if (!request_mem_region(info->fix.smem_start,
- info->fix.smem_len, "cyblafb")) {
- output("region %#lx/%#x already reserved\n",
- info->fix.smem_start, info->fix.smem_len);
- vesafb |= 4;
- }
-
- info->screen_base = ioremap_nocache(info->fix.smem_start,
- info->fix.smem_len);
-
- if (!info->screen_base) {
- output("ioremap failed for smem region\n");
- goto errout_smem_remap;
- }
-
- displaytype = get_displaytype();
-
- if (displaytype == DISPLAY_FP)
- nativex = get_nativex();
-
- info->flags = FBINFO_DEFAULT
- | FBINFO_HWACCEL_COPYAREA
- | FBINFO_HWACCEL_FILLRECT
- | FBINFO_HWACCEL_IMAGEBLIT
- | FBINFO_READS_FAST
-// | FBINFO_PARTIAL_PAN_OK
- | FBINFO_MISC_ALWAYS_SETPAR;
-
- info->pseudo_palette = par->pseudo_pal;
-
- if (getstartupmode(info))
- goto errout_findmode;
-
- fb_alloc_cmap(&info->cmap, 256, 0);
-
- if (register_framebuffer(info)) {
- output("Could not register CyBla framebuffer\n");
- goto errout_register;
- }
-
- pci_set_drvdata(dev, info);
-
- //
- // normal exit and error paths
- //
-
- return 0;
-
- errout_register:
- errout_findmode:
- iounmap(info->screen_base);
- errout_smem_remap:
- if (!(vesafb & 4))
- release_mem_region(info->fix.smem_start, info->fix.smem_len);
- iounmap(io_virt);
- errout_mmio_remap:
- release_mem_region(info->fix.mmio_start, info->fix.mmio_len);
- errout_mmio_reqmem:
- if (!(vesafb & 1))
- release_region(0x3c0, 32);
- errout_enable:
- kfree(info->pixmap.addr);
- errout_alloc_pixmap:
- framebuffer_release(info);
- errout_alloc_info:
- output("CyblaFB version %s aborting init.\n", VERSION);
- return -ENODEV;
-}
-
-static void __devexit cybla_pci_remove(struct pci_dev *dev)
-{
- struct fb_info *info = pci_get_drvdata(dev);
-
- unregister_framebuffer(info);
- iounmap(io_virt);
- iounmap(info->screen_base);
- if (!(vesafb & 4))
- release_mem_region(info->fix.smem_start, info->fix.smem_len);
- release_mem_region(info->fix.mmio_start, info->fix.mmio_len);
- fb_dealloc_cmap(&info->cmap);
- if (!(vesafb & 2))
- release_region(GEBase, 0x100);
- if (!(vesafb & 1))
- release_region(0x3c0, 32);
- kfree(info->pixmap.addr);
- framebuffer_release(info);
- output("CyblaFB version %s normal exit.\n", VERSION);
-}
-
-//
-// List of boards that we are trying to support
-//
-static struct pci_device_id cybla_devices[] = {
- {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0,}
-};
-
-MODULE_DEVICE_TABLE(pci, cybla_devices);
-
-static struct pci_driver cyblafb_pci_driver = {
- .name = "cyblafb",
- .id_table = cybla_devices,
- .probe = cybla_pci_probe,
- .remove = __devexit_p(cybla_pci_remove)
-};
-
-//=============================================================
-//
-// kernel command line example:
-//
-// video=cyblafb:1280x1024, bpp=16, ref=50 ...
-//
-// modprobe command line example:
-//
-// modprobe cyblafb mode=1280x1024 bpp=16 ref=50 ...
-//
-//=============================================================
-
-static int __devinit cyblafb_init(void)
-{
-#ifndef MODULE
- char *options = NULL;
- char *opt;
-
- if (fb_get_options("cyblafb", &options))
- return -ENODEV;
-
- if (options && *options)
- while ((opt = strsep(&options, ",")) != NULL) {
- if (!*opt)
- continue;
- else if (!strncmp(opt, "bpp=", 4))
- bpp = simple_strtoul(opt + 4, NULL, 0);
- else if (!strncmp(opt, "ref=", 4))
- ref = simple_strtoul(opt + 4, NULL, 0);
- else if (!strncmp(opt, "fp", 2))
- displaytype = DISPLAY_FP;
- else if (!strncmp(opt, "crt", 3))
- displaytype = DISPLAY_CRT;
- else if (!strncmp(opt, "nativex=", 8))
- nativex = simple_strtoul(opt + 8, NULL, 0);
- else if (!strncmp(opt, "center", 6))
- center = 1;
- else if (!strncmp(opt, "stretch", 7))
- stretch = 1;
- else if (!strncmp(opt, "pciwb=", 6))
- pciwb = simple_strtoul(opt + 6, NULL, 0);
- else if (!strncmp(opt, "pcirb=", 6))
- pcirb = simple_strtoul(opt + 6, NULL, 0);
- else if (!strncmp(opt, "pciwr=", 6))
- pciwr = simple_strtoul(opt + 6, NULL, 0);
- else if (!strncmp(opt, "pcirr=", 6))
- pcirr = simple_strtoul(opt + 6, NULL, 0);
- else if (!strncmp(opt, "memsize=", 8))
- memsize = simple_strtoul(opt + 8, NULL, 0);
- else if (!strncmp(opt, "verbosity=", 10))
- verbosity = simple_strtoul(opt + 10, NULL, 0);
- else
- mode = opt;
- }
-#endif
- output("CyblaFB version %s initializing\n", VERSION);
- return pci_register_driver(&cyblafb_pci_driver);
-}
-
-static void __exit cyblafb_exit(void)
-{
- pci_unregister_driver(&cyblafb_pci_driver);
-}
-
-module_init(cyblafb_init);
-module_exit(cyblafb_exit);
-
-MODULE_AUTHOR("Knut Petersen <knut_petersen@xxxxxxxxxxx>");
-MODULE_DESCRIPTION("Framebuffer driver for Cyberblade/i1 graphics core");
-MODULE_LICENSE("GPL");
diff -puN drivers/video/tridentfb.c~remove-cyblafb-driver drivers/video/tridentfb.c
--- a/drivers/video/tridentfb.c~remove-cyblafb-driver
+++ a/drivers/video/tridentfb.c
@@ -2,7 +2,7 @@
* Frame buffer driver for Trident TGUI, Blade and Image series
*
* Copyright 2001, 2002 - Jani Monoses <jani@xxxxx>
- *
+ * Copyright 2009 Krzysztof Helt <krzysztof.h1@xxxxx>
*
* CREDITS:(in order of appearance)
* skeletonfb.c by Geert Uytterhoeven and other fb code in drivers/video
@@ -1490,6 +1490,9 @@ static int __devinit trident_pci_probe(s
} else
info->flags |= FBINFO_HWACCEL_DISABLED;
+ if (is_blade(chip_id) && chip_id != BLADE3D)
+ info->flags |= FBINFO_READS_FAST;
+
info->pixmap.addr = kmalloc(4096, GFP_KERNEL);
if (!info->pixmap.addr) {
err = -ENOMEM;
@@ -1664,4 +1667,5 @@ module_exit(tridentfb_exit);
MODULE_AUTHOR("Jani Monoses <jani@xxxxx>");
MODULE_DESCRIPTION("Framebuffer driver for Trident cards");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("cyblafb");
_
Patches currently in -mm which might be from krzysztof.h1@xxxxx are
linux-next.patch
cirrusfb-convert-printks-to-dev_foo-fix-fix3.patch
cirrusfb-fix-laguna-chipset-memory-detection-and-clock-setting.patch
cirrusfb-add-laguna-additional-overflow-register.patch
cirrusfb-add-mmio-registers-for-laguna-chipsets.patch
cirrusfb-do-not-calculate-line-length-twice.patch
cirrusfb-use-5-6-5-rgb-for-16bpp-mode.patch
cirrusfb-various-improvements.patch
cirrusfb-laguna-chipset-8bpp-fix.patch
cirrusfb-check_var-improvements.patch
cirrusfb-various-laguna-fixes.patch
cirrusfb-acceleration-improvements.patch
cirrusfb-add-imageblit-function.patch
cirrusfb-fix-error-paths-in-cirrusfb_xxx_register.patch
cirrusfb-fix-error-paths-in-cirrusfb_xxx_register-fix.patch
cirrusfb-gd5446-fixes.patch
cirrusfb-use-24bpp-instead-of-32bpp.patch
cirrusfb-fix-clock-doubling.patch
cirrusfb-fix-clock-doubling-fix.patch
drivers-video-sgivwfbc-fix-memory-leaks-in-removal-path.patch
tdfxfb-fix-memory-leaks-in-removal-path.patch
tridentfb-fix-memory-leaks-in-removal-path.patch
vfb-fix-memory-leaks-in-removal-path.patch
sstfb-check-fb_alloc_cmap-return-value-and-handle-failure-properly.patch
stifb-check-fb_alloc_cmap-return-value-and-handle-failure-properly.patch
valkyriefb-check-fb_alloc_cmap-return-value-and-handle-failure-properly.patch
68328fb-fix-cmap-memory-leaks.patch
amba-clcd-fix-cmap-memory-leaks.patch
amifb-check-fb_alloc_cmap-return-value-and-handle-failure-properly.patch
asiliantfb-fix-cmap-memory-leaks.patch
asiliantfb-fix-cmap-memory-leaks-fix.patch
remove-cyblafb-driver.patch
--
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