Tim Waugh (tim@cyberelk.demon.co.uk)
Wed, 9 Dec 1998 00:06:59 +0000 (GMT)
On Tue, 8 Dec 1998, Tim Waugh wrote:
> Only if you make the functions non-static, which I'd rather not do. I'm
> working on a patch, which I hope to be able to make available tonight.
Okay, I've uploaded my latest code:
ftp://ftp.torque.net/pub/parport/patch-2.1.131-ac5-1284.gz
The port->ops structure has changed. epp_write_block and epp_read_block
now provide a callback, whereas previously they didn't. ('ECP+EPP'
chipsets can DMA EPP.)
More functions:
compat_write_block
nibble_read_block
byte_read_block
They also take callbacks -- compatibility mode can be DMA'd by chipsets
supporting ECP, and for all I know there is a chipset somewhere (or will
be) that DMA's for nibble mode and byte mode.
The file parport_ieee1284_ops.c provides default implementations of the
block-io functions, and the idea is that the architectural drivers provide
better functions, based on what chipset we have.
Something funny's going on with interrupts, in that I don't seem to be
getting any even though I think I should. I suspect the INTEN bit is
getting overwritten somehow.
Tim.
*/
-- To unsubscribe, send mail to: linux-parport-request@torque.net --
-- with the single word "unsubscribe" in the body of the message. --
This archive was generated by hypermail 2.0b3 on Wed 30 Dec 1998 - 10:18:52 EST