Commit Graph

22 Commits

Author SHA1 Message Date
jdolecek e0cc03a09b merge kqueue branch into -current
kqueue provides a stateful and efficient event notification framework
currently supported events include socket, file, directory, fifo,
pipe, tty and device changes, and monitoring of processes and signals

kqueue is supported by all writable filesystems in NetBSD tree
(with exception of Coda) and all device drivers supporting poll(2)

based on work done by Jonathan Lemon for FreeBSD
initial NetBSD port done by Luke Mewburn and Jason Thorpe
2002-10-23 09:10:23 +00:00
gehenna 77a6b82b27 Merge the gehenna-devsw branch into the trunk.
This merge changes the device switch tables from static array to
dynamically generated by config(8).

- All device switches is defined as a constant structure in device drivers.

- The new grammer ``device-major'' is introduced to ``files''.

	device-major <prefix> char <num> [block <num>] [<rules>]

- All device major numbers must be listed up in port dependent majors.<arch>
  by using this grammer.

- Added the new naming convention.
  The name of the device switch must be <prefix>_[bc]devsw for auto-generation
  of device switch tables.

- The backward compatibility of loading block/character device
  switch by LKM framework is broken. This is necessary to convert
  from block/character device major to device name in runtime and vice versa.

- The restriction to assign device major by LKM is completely removed.
  We don't need to reserve LKM entries for dynamic loading of device switch.

- In compile time, device major numbers list is packed into the kernel and
  the LKM framework will refer it to assign device major number dynamically.
2002-09-06 13:18:43 +00:00
atatat 31144d9976 Convert ioctl code to use EPASSTHROUGH instead of -1 or ENOTTY for
indicating an unhandled "command".  ERESTART is -1, which can lead to
confusion.  ERESTART has been moved to -3 and EPASSTHROUGH has been
placed at -4.  No ioctl code should now return -1 anywhere.  The
ioctl() system call is now properly restartable.
2002-03-17 19:40:26 +00:00
lukem 2565646230 don't need <sys/types.h> when including <sys/param.h> 2001-11-15 09:47:59 +00:00
lukem a4bae8b066 add/cleanup RCSID 2001-11-13 13:14:31 +00:00
scw 05be817d7b Call clmpcc_init() when setting up the console to get the chip into
a known state.

For some reason, "Bug" on mvme68k can't be relied upon to leave it
in a good enough state for our console routines...
2001-07-12 17:21:01 +00:00
scw 2963ff5c58 Add `l_poll' to `struct linesw' and provide an xxxpoll() entry point
in each tty driver to indirect through it.

This allows tty line-disciplines to handle poll(2) system calls.
2001-05-02 10:32:08 +00:00
thorpej 45de366b2e Rename __GENERIC_SOFT_INTERRUPTS to __HAVE_GENERIC_SOFT_INTERRUPTS,
and place the definition in <machine/types.h>.  This can now be used
as a flag to indicate whether or not <machine/intr.h> can be included
to get the generic soft interrupt API.
2001-01-14 23:50:28 +00:00
eeh 2a860a3de9 Adapt to the new line discipline scheme. 2000-11-01 23:54:57 +00:00
scw a1b8e79bb1 Take advantage of generic soft interrupts, if available. 2000-07-20 20:44:50 +00:00
scw 20305c6623 Fix a typo in the `device_lookup()' changes. 2000-07-15 18:12:42 +00:00
thorpej cb450cc444 Use device_lookup(). 2000-07-06 01:47:34 +00:00
scw b0ca3fa931 The soft-interrupt handler now returns void. 2000-03-19 10:38:43 +00:00
scw 54f42f17fc Don't bother spinning in the console 'putc' routine for the transmitter
to become idle; it actually doesn't matter as the chip takes care of
this for us. It would also spin endlessly in certain circumstances
during shutdown.

While I'm here, (finally) add code to allow sending BREAK characters.
1999-11-28 12:23:18 +00:00
scw 3981e235b7 Zero is a valid value for ch_tcor and ch_rcor, so be a bit more conservative
when deciding if the baud-rate should be changed. (Spotted by Bruce Martin)
Also fix the mask used when setting the Rx FIFO threshold to zero. I don't
yet understand how the Rx side worked with the code as it was. ;-}
1999-11-11 09:38:43 +00:00
scw d1c5384e9a Minor optimisation. 1999-09-18 09:45:05 +00:00
scw ba922d31d8 Re-work the Tx side to avoid calling into the tty layer at
interrupt time. This was the cause of the 'mmu fault' panics
seen by several people, as the Tx interrupt is at a higher
priority that spltty().
1999-08-01 09:35:05 +00:00
scw 9737cf763a Fix a problem where no Tx Empty interrupt ever happened if CTS
was deasserted and we wanted to change parameters to -crtscts
This effectively stalled the transmitter since with TS_BUSY set
we only change parameters during the Tx interrupt handler.
1999-04-03 13:13:19 +00:00
scw fc658e2d3e Don't update the CORx registers unless they really have changed.
Also make console Tx handling wait until the Tx FIFO has drained and
the shift-register is empty before sending console characters.
1999-02-21 14:01:50 +00:00
scw 3a5b0d88ca That #define splserial() really didn't want to be there... 1999-02-20 16:23:39 +00:00
scw 0ed9dc11d7 Delay serial port parameter changes until the Tx FIFO has emptied. 1999-02-20 00:27:29 +00:00
scw 94719c7b9a New MI front-end for the Cirrus Logic CD240[01] Multi-protocol
Communications Controller.

This is still a work in progress, but it is functional enough to
be usable.
1999-02-13 17:05:19 +00:00