Commit Graph

5 Commits

Author SHA1 Message Date
mrg db3051d720 fix problems in many d_mmap routines:
- returned EOPNOTSUPP rather than -1.
	- no check for negative offset.
many of these fix potential security problems in these drivers.


XXX XXX XXX
the d_mmap cdev routine should be changed to have a prototype like:
	paddr_t (*d_mmap) __P((dev_t, off_t, int));

by someone!
1998-11-19 15:38:20 +00:00
nisimura 4184d87669 - Fix cursor image handling bugs escaped in last commit. 1998-11-18 12:26:31 +00:00
nisimura 9d716ec821 - Fix many errors in cursor image manipulation. Hardware expect 2
bit/pixel format, not planer format.  Assign MSB for cursor mask and
LSB for cursor image, where 10 means mask color and 11 for image color.
Image bit order of Bt431 and Bt459 are opposite to MIPS/Alpha processors
while IMS G332 and DC503 (PCC) are indentical.
- Assume that cursor images are 32 pixel padded as ULTRIX/DU ws interface
do.  It's natural to X server.
- XXX Vast majority of codes are duplicated between mfb<->tfb and cfb<->sfb.
Code sharing might be achieved in the context of TGA/SFB+ merge.
1998-11-09 03:58:05 +00:00
nisimura 6020153959 - Assign copyright terms. 1998-10-30 00:53:12 +00:00
nisimura e29350c92c - Introduce MI NWSCONS drivers for TURBOchannel framebuffer option cards.
N.B., Digital UNIX never supports neither PMAG-AA (mfb) nor PMAG-BA (cfb)
for TC Alphas.  PMAG-DV (xcfb) is Personal DECstation built in.  All should
be good for console, but need much works for cursor/colormap completeness.
1998-10-29 12:24:24 +00:00