This is the README for 754xdrv.052.I.b.tar.gz [Download] [Browse] [Up]
== Cirrus Logic GD754x generic driver ==
This driver is what allows color displaying for the computers which Cirrus Logic GD754x series are used in. "GD754x" means GD7541, GD7543, GD7548 and maybe also GD7542.
These controllers are mainly used in laptop computers, so this driver is designed, assuming that it will be used for LCD display.
If you try this driver, please read the following (environment and limitations).
[Required Environment]
o Processor
For only Intel processors.
o OS
For only ver 3.3.
It don't works on ver 3.2 and earlier.
On ver 4.0(OpenStep for Mach), it is possible to work. But not tested yet.
o Graphic Controller
Cirrus Logic
GD7543, GD7548 (already tested)
GD7541, GD7542 (test not yet, but these are possible to work)
o Display Devices
Only 800x600 TFT LCD has been already tested and certainly works.
LCDs whose panel size are 640x480 or whose type of panel is DSTN, have never tested yet. But it's possible for them to work.
For CRT display, supports simultaneous displaying with LCD panel. CRT only displaying is not supported.
o Internal Bus
It works fine in PCI and not-PCI.
[Supported Modes]
- 640x480 / 8bit color and 8bit grayscale
LCD/CRT simultaneously
- 640x480 / 16bit color
LCD/CRT simultaneously
- 800x600 / 8bit color and 8bit grayscale
640x480 LCD: LCD virtual screen mode only
800x600 LCD: LCD/CRT simultaneously
- 800x600 / 16bit color
640x480 LCD: LCD virtual screen mode only
800x600 LCD: LCD/CRT simultaneously
- 1024x768 / 8bit color and 8bit grayscale
LCD virtual screen mode only
[Machines that work fine]
vendor | Model | Controller | Internal Bus
---------+--------------+------------+-------------
SHARP Mebius A-3xx GD7543 PCI sold only Japan
SHARP Mebius A-4xx GD7548 PCI sold only Japan
COMPAQ LTE5200 GD7543 PCI
AST Ascentia 950N GD7543 not-PCI
[Copyright and so on]
- Copyright of this driver is held by "Hiroshi Noguchi".
- This driver is no fee software. So, I would like to refuse any fee and donation.
- Forbid the pre-installation into computers to sell.
Because there is the possibility that the seller will require the fee for work that is "pre-installing" and it makes difficult judging whether this driver is distributed with no fee.
- I have no liability for any troubles which cause by using this driver (troubles are system crash, loss of data and so on).
You should use this driver at your own risk.
- I allow redistribution on the other sites. If you redistribute, please mail to me where this driver will be put into.
- Updates of this driver will be done at irregular intevals or will not be done.
- If you install the machines not listed in section "Machines that work fine" and it works, please tell me the specs of your computer by E-mail.
[Any suggestions to]
E-mail: noguchi@npost1.netspace.or.jp
Author:
Hiroshi Noguchi
E-mail: noguchi@npost1.netspace.or.jp (NeXT Mail not acceptable)
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.