(tested on 2.4.18 and 2.5.53 -- the budget driver is
untested, Holger will test it the next week)

saa7146:
- completely separated the saa7146 driver into a core-driver (saa7146.o) and
  a video/vbi part (saa7146_vv.o). this allows you to build the budget driver
  without av7110 and videodev bloat (see below)

The following thinks have been approved by Holger Waechtler:

av7110 (now ttpci):
- for 2.5.x: removed the av7110 directory and put everything into ttpci.
- removed all budget card support from this driver
- compile and build fixes for the saa7146 changes

ttpci-budget (new):
- for 2.5.x: created a new ttpci-budget directory, added a new driver for
  the budget cards

mxb:
- compile and build fixes for the saa7146 changes

Changed the build and compile files for both 2.5.x and build-2.4 of course...

so we can later split up the av7110 driver into a av7110 and budget card driver.

I tested this on 2.4.18-3 (original RedHat 7.3 kernel) and 2.5.53.

Changes in detail:

saa7146:
- fixed the unitialised timer warnings
- split saa7146.o into saa7146.o and saa7146_vv.o:
  all videodev (ie. v4l) related stuff is now encapsulated in saa7146_vv.o.
  the extension (ie. mxb or dvb-ttpci) now has to make sure to register the v4l
  devices via helper functions provided by saa7146_vv

mxb:
- changes to make the driver compile with the new saa7146 and saa7146_vv parts
- fix the vbi bypass issue for MXBs with saa7146, rev. 1 card

av7110:
- changes to make the driver compile with the new saa7146 and saa7146_vv parts
- some changes related to the upcoming av7110 <=> budget splitup, but they are
  commented out
- changed the saa7146 PAL values to experimental values that look good to me, but
  kept the old values as a comment. where are the original values from? there is
  a big black border on most channels on the left side which annoyed me...
- changed from video/generic_usercopy() to dvb_usercopy() and put this into the
  source code, not into compat.c
- moved the crc_32* stuff from compat.c to the source file where it is used
- now compat.[ch] was removed completely, all references were deleted from
  all other files.

other:
- updated the README and TODO files
- changed "makelinks" to remove alps_bsru6 stuff from kernel when making the symlinks
- fixed the build files in "build-2.4"
- fixed all other files needed for 2.5.x kernel build

obviously bogus dmapos values.

file to reflect the latest changes.

(ie. the av7110) handle the odd/even fields differently. I added a new
field to the extension, which holds special flags of the extension and the
device. I declared the MXB way of handling fields as "normal", so the
av7110 extension sets SAA7146_EXT_SWAP_ODD_EVEN here.

@Holger: I added some superfluous "struct saa7146_dev *dev" variables
back to some functions. These cause ugly warnings at compile time, I admit,
but they are necessary if you want to use the debug macros to trace a
saa7146 register for example. Please leave them in for now -- I need this
when I switch between old-DVB / old-MXB <=> new-DVB / new-MXB drivers and
try to hack out the differences.

possible to create a complete call trace now.
(You can #if 0 this out, if you are concerned about runtime
drawbacks...)

(applied by me because he's already at home...)

copy & paste error), removed duplicate dvb_register_i2c_bus() call,
removed all references to RPS0, it's not used at all. (this fixes
the capturing problems)

instead of busy waiting for an i2c transaction to finish. Left the
old method in there. if you need it (or if i screwed up),
set "use_i2c_irq" to zero in saa7146_i2c.c to get the old behaviour.

- more namespace cleaning