linux-toradex.git/drivers/char/tty_port.c, branch v2.6.31.4 Linux kernel for Apalis and Colibri modules TTY: fix typos 2009-10-07T21:30:44+00:00 Alan Stern stern@rowland.harvard.edu 2009-08-20T19:23:47+00:00 8531ae808ab504ba8501929f4355cbec55b424b4 commit 1f5c13fad4ec5617b610e12205902c06298c096a upstream. This patch (as1282) fixes some obvious typos in the TTY core. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
commit 1f5c13fad4ec5617b610e12205902c06298c096a upstream.

This patch (as1282) fixes some obvious typos in the TTY core.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
tty: Add a full port_close function 2009-10-05T16:32:34+00:00 Alan Cox alan@linux.intel.com 2009-09-19T20:13:20+00:00 4260dc792fabfd20c8644fa9414b2ae48372365f commit 7ca0ff9ab3218ec443a7a9ad247e4650373ed41e upstream. Now we are extracting out methods for shutdown and the like we can add a proper tty_port_close method that knows all the innards of the tty closing process and hides the lot from the caller. At some point in the future this will be paired with a similar open() helper and the drivers can stick to hardware management. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
commit 7ca0ff9ab3218ec443a7a9ad247e4650373ed41e upstream.

Now we are extracting out methods for shutdown and the like we can add a
proper tty_port_close method that knows all the innards of the tty closing
process and hides the lot from the caller.

At some point in the future this will be paired with a similar open()
helper and the drivers can stick to hardware management.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
tty_port: Fix return on interrupted use 2009-07-17T15:50:43+00:00 Alan Cox alan@linux.intel.com 2009-07-17T15:17:26+00:00 ecc2e05e739c30870c8e4f252b63a0c4041f2724 Whoops.. fortunately not many people use this yet. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Whoops.. fortunately not many people use this yet.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
tty: fix tty_port_block_til_ready waiting 2009-06-24T16:55:50+00:00 Jiri Slaby jirislaby@gmail.com 2009-06-24T17:35:05+00:00 6af9a43d58f2ec455b752fb9534cf05c7e855dbe Since commit 3e3b5c087799e536871c8261b05bc28e4783c8da ("tty: use prepare/finish_wait"), tty_port_block_til_ready() is using prepare_to_wait()/finish_wait(). Those functions require that the wait_queue_t be initialised with .func=autoremove_wake_function, via DEFINE_WAIT(). But the conversion from DECLARE_WAITQUEUE() to DEFINE_WAIT() was not made, so this code will oops in finish_wait(). Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Since commit 3e3b5c087799e536871c8261b05bc28e4783c8da ("tty: use
prepare/finish_wait"), tty_port_block_til_ready() is using
prepare_to_wait()/finish_wait().  Those functions require that the
wait_queue_t be initialised with .func=autoremove_wake_function, via
DEFINE_WAIT().

But the conversion from DECLARE_WAITQUEUE() to DEFINE_WAIT() was not made,
so this code will oops in finish_wait().

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
tty: use prepare/finish_wait 2009-06-11T15:51:07+00:00 Jiri Slaby jirislaby@gmail.com 2009-06-11T13:33:37+00:00 3e3b5c087799e536871c8261b05bc28e4783c8da Use prepare_to_wait and finish_wait instead of add_wait_queue and remove_wait_queue. This avoids us setting a task state. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Use prepare_to_wait and finish_wait instead of add_wait_queue and
remove_wait_queue.

This avoids us setting a task state.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
tty: remove sleep_on 2009-06-11T15:51:07+00:00 Jiri Slaby jirislaby@gmail.com 2009-06-11T13:32:42+00:00 5fc5b42a3bb564f0b6e03f0f1b522ed9100250ad Use wait_event instead of sleep_on in tty_block_til_ready. Wait for ASYNC_CLOSING flag being 0. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Use wait_event instead of sleep_on in tty_block_til_ready.

Wait for ASYNC_CLOSING flag being 0.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
tty: Implement a drain delay in the tty port 2009-06-11T15:50:56+00:00 Alan Cox alan@lxorguk.ukuu.org.uk 2009-06-11T11:25:25+00:00 1ec739be75a6cb961a46ba0b1982d0edb7f27558 We need this for devices that cannot flush and wait, but which do not order data and modem events. Without it we will hang up before all the data clears the hardware. Needed for the USB changes. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
We need this for devices that cannot flush and wait, but which do not order
data and modem events. Without it we will hang up before all the data
clears the hardware. Needed for the USB changes.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
tty: Add carrier processing on close to the tty_port core 2009-06-11T15:50:56+00:00 Alan Cox alan@lxorguk.ukuu.org.uk 2009-06-11T11:24:17+00:00 fcc8ac1825d3d0fb81f73bc1a80ebc863168bb56 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 <alan@lxorguk.ukuu.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
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 <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
tty: use port methods for the rocket driver 2009-01-02T18:19:42+00:00 Alan Cox alan@redhat.com 2009-01-02T13:48:39+00:00 fba85e013f106a44e91ef5edec899fc56a7e61ee Now we have our ducks in order we can begin switching to the port operations Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Now we have our ducks in order we can begin switching to the port
operations

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
tty: Make epca use the port helpers 2009-01-02T18:19:41+00:00 Alan Cox alan@redhat.com 2009-01-02T13:48:11+00:00 6ed1dbaeadd62a026a93aa3ac8680d2dfe9f96b3 Now the locking is straight and the port kref usage is straight we can replace lots of chunks of code with the standard port helpers Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Now the locking is straight and the port kref usage is straight we can
replace lots of chunks of code with the standard port helpers

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>