linux-toradex.git/drivers/char/mxser.c, branch v2.6.31.3

headers: smp_lock.h redux

2009-07-12T19:22:34+00:00

* Remove smp_lock.h from files which don't need it (including some headers!)
* Add smp_lock.h to files which do need it
* Make smp_lock.h include conditional in hardirq.h
  It's needed only for one kernel_locked() usage which is under CONFIG_PREEMPT

  This will make hardirq.h inclusion cheaper for every PREEMPT=n config
  (which includes allmodconfig/allyesconfig, BTW)

Signed-off-by: Alexey Dobriyan 
Signed-off-by: Linus Torvalds

Remove low_latency flag setting from nozomi and mxser drivers

2009-06-24T16:55:50+00:00

The kernel oopses if this flag is set.

[and neither driver should set it as they call tty_flip_buffer_push from IRQ
 paths so have always been buggy]

Signed-off-by: Chuck Ebbert 
Signed-off-by: Alan Cox 
Signed-off-by: Linus Torvalds

tty: Add carrier processing on close to the tty_port core

2009-06-11T15:50:56+00:00

Some drivers implement this internally, others miss it out. Push the
behaviour into the core code as that way everyone will do it consistently.

Update the dtr rts method to raise or lower depending upon flags. Having a
single method in this style fits most of the implementations more cleanly than
two funtions.

We need this in place before we tackle the USB side

Signed-off-by: Alan Cox 
Signed-off-by: Linus Torvalds

char: mxser, fix ISA board lookup

2009-06-10T01:09:03+00:00

There's a bug in the mxser kernel module that still appears in the
2.6.29.4 kernel.

mxser_get_ISA_conf takes a ioaddress as its first argument, by passing the
not of the ioaddr, you're effectively passing 0 which means it won't be
able to talk to an ISA card.  I have tested this, and removing the !
fixes the problem.

Cc: "Peter Botha" 
Signed-off-by: Jiri Slaby 
Acked-by: Alan Cox 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mxser: remove tty_port_tty_get from mxser_check_modem_status

2009-04-06T21:36:33+00:00

mxser_check_modem_status is called with tty parameter, so the
reference should be increased by callers already -- for ioctl
syscall it is held whole time gap since open to close, for
interrupt, the reference count is increased in the irq handler.

There is no tty_kref_put in that function, so this also fixes
a refcounting bug.

Signed-off-by: Jiri Slaby 
Signed-off-by: Alan Cox 
Signed-off-by: Linus Torvalds

tty: Introduce some close helpers for ports

2009-01-02T18:19:40+00:00

Again this is a lot of common code we can unify

Signed-off-by: Alan Cox 
Signed-off-by: Linus Torvalds

tty: Introduce a tty_port generic block_til_ready

2009-01-02T18:19:39+00:00

Start sucking more commonality out of the drivers into a single piece of
core code.

Signed-off-by: Alan Cox 
Signed-off-by: Linus Torvalds

tty: relock the mxser driver

2009-01-02T18:19:39+00:00

Signed-off-by: Alan Cox 
Signed-off-by: Linus Torvalds

tty: Pull the dtr raise into tty port

2009-01-02T18:19:38+00:00

This moves another per device special out of what should be shared open
wait paths into private methods

Signed-off-by: Alan Cox 
Signed-off-by: Linus Torvalds

tty_port: Add a port level carrier detect operation

2009-01-02T18:19:38+00:00

This is the first step to generalising the various pieces of waiting logic
duplicated in all sorts of serial drivers.

Signed-off-by: Alan Cox 
Signed-off-by: Linus Torvalds