Use generic open rather than calling usb_serial_submit_read_urb
directly.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Return errors from usb_submit_urb rather than EPROTO on errors in open.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
I get report from customer that his usb-serial
converter doesn't work well,it sometimes work,
but sometimes it doesn't.
The usb-serial converter's id:
vendor_id product_id
0x4348 0x5523
Then I search the usb-serial codes, and there are
two drivers announce support this device, pl2303
and ch341, commit 026dfaf1 cause it. Through many
times to test, ch341 works well with this device,
and pl2303 doesn't work quite often(it just work quite little).
ch341 works well with this device, so we doesn't
need pl2303 to support.I try to revert 026dfaf1 first,
but it failed. So I prepare this patch by hand to revert it.
Signed-off-by: Wang YanQing <Udknight@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add vendor and product ID for the SMART USB to serial adapter. These
were meant to be used with their SMART Board whiteboards, but can be
re-purposed for other tasks. Tested and working (at at least 9600 bps).
Signed-off-by: Eric Benoit <eric@ecks.ca>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add ID 4348:5523 for WinChipHead USB->RS 232 adapter with
Prolifec PL2303 chipset
Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We don't use it so we can trim it from here as we try and stamp the file
object dependencies out of the serial code.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Doing tiocmget was such fun we should do tiocmset as well for the same
reasons
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We don't actually need this and it causes problems for internal use of
this functionality. Currently there is a single use of the FILE * pointer.
That is the serial core which uses it to check tty_hung_up_p. However if
that is true then IO_ERROR is also already set so the check may be removed.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan's commit 335f8514f2 introduced
.carrier_raised function in several drivers. That also means
tty_port_block_til_ready can now suspend the process trying to open the serial
port when Carrier Detect is low and put it into tty_port.open_wait queue. We
need to wake up the process when Carrier Detect goes high and trigger TTY
hangup when CD goes low.
Some of the devices do not report modem status line changes, or at least we
don't understand the status message, so for those we remove .carrier_raised
again.
Signed-off-by: Libor Pechacek <lpechacek@suse.cz>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Added 0x0307 device id to support Motorola cables to the pl2303 usb
serial driver. This cable has a modified chip that is a pl2303, but
declares itself as 0307. Fixed by adding the right device id to the
supported devices list, assigning it the code labeled
PL2303_PRODUCT_ID_MOTOROLA.
Signed-off-by: Dario Lombardo <dario.lombardo@libero.it>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add support for the Zeagle N2iTiON3 dive computer interface. Since
Zeagle devices are actually manufactured by Seiko, this patch will
support other Seiko based models as well.
Signed-off-by: Jef Driesen <jefdriesen@telenet.be>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Since handle_sysrq() does not take tty as argument anymore we can
drop it from usb_serial_handle_sysrq_char() as well.
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Acked-by: Jason Wessel <jason.wessel@windriver.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Use tty_insert_flip_string_fixed_flag to report errors to line
discipline.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Use usb_serial_generic_close to kill the read and write urbs and to
reset the write fifo.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Use generic read implementation and use process_read_urb to do device
specific processing (handle line status).
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The pl2303 requires a bulk-in buffer larger than endpoint size to keep
up at high baudrates without loosing data.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Increase the bulk-out buffer size from 64 to 256 byte.
This gives a significant increase in throughput already at 1Mbaud as well
as lowered CPU usage. The buffer is big enough to keep up also at 3Mbaud
(128b would not suffice).
64b 256b
921k: 640 KB/s 870 KB/s
3M: 640 KB/s 2520 KB/s
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Replace all instances of using the console variable in struct
usb_serial_port with the struct tty_port version.
CC: Alan Cox <alan@linux.intel.com>
CC: Alan Stern <stern@rowland.harvard.edu>
CC: Oliver Neukum <oliver@neukum.org>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: linux-usb@vger.kernel.org
CC: linux-kernel@vger.kernel.org
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
I read a rumor that the AdLink ND6530 USB RS232, RS422 and RS485
isolated adapter is actually a PL2303 based usb serial adapter. I
tried it out, and as far as I can tell it works.
Signed-off-by: Manuel Jander <manuel.jander@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
I've got a trivial patch for the pl2303 driver, that's what I needed to
make the wacom serial tablet driver work properly. It uses the
TIOCGSERIAL ioctl to determine if it's talking to a serial device or
not, which I gather is rather common, but the pl2303 driver didn't
implement that ioctl.
Here's a patch, I'm not sure it's absolutely correct, I mostly looked at
other similar usbserial drivers to see what I must do, but it works for
me.
Signed-off-by: John Tsiombikas <nuclear@member.fsf.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as1344) removes references to port->port.count from the
USB serial drivers. Now that serial ports are properly reference
counted, port.count checking is unnecessary and incorrect. Drivers
should assume that the port is in use from the time the open method
runs until the close method is called.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We have lots of callers that do not need to do this in the first place.
Remove the calls as they both cost CPU and for big buffers can mess up the
multi-page allocation avoidance.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The id_table field of the struct usb_device_id is constant in <linux/usb.h>
so it is worth to make the initialization data also constant.
The semantic match that finds this kind of pattern is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r@
disable decl_init,const_decl_init;
identifier I1, I2, x;
@@
struct I1 {
...
const struct I2 *x;
...
};
@s@
identifier r.I1, y;
identifier r.x, E;
@@
struct I1 y = {
.x = E,
};
@c@
identifier r.I2;
identifier s.E;
@@
const struct I2 E[] = ... ;
@depends on !c@
identifier r.I2;
identifier s.E;
@@
+ const
struct I2 E[] = ...;
// </smpl>
Signed-off-by: Németh Márton <nm127@freemail.hu>
Cc: Julia Lawall <julia@diku.dk>
Cc: cocci@diku.dk
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is how "real" UARTs (e.g. 16550) work and AFAIK what RS232 specifies, too.
Make the driver more compliant.
Signed-off-by: Frank Schaefer <schaefer.frank@gmx.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The device supports it, so why not use it ? Works fine !
Signed-off-by: Frank Schaefer <schaefer.frank@gmx.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
According to the datasheets, the PL2303 supports a set of 25 baudrates.
The baudrate is set as a 4 byte value directly.
During my experiments with device 067b:2303 (PL2303X), I noticed that
- the bridge-controller always uses 9600 baud if invalid/unsupported baud rate
values are set
- the baud rate value returned by usb_control_msg(..., GET_LINE_REQUEST, ...)
does not reflect the actually used baudrate. Always the last set value is
returned, even if it was invalid and not used by the controller.
This patch fixes the following issues with the current code:
1.) make sure that only supported baudrates are set (are there any buggy
chip revisions out there which don't "like" other values... ?).
2.) always set the baudrate to the next nearest supported baudrate.
3.) applications can now read back the resulting baudrate properly, because
tty_encode_baud_rate(...) is now fed with the actually used baudrate.
Signed-off-by: Frank Schaefer <schaefer.frank@gmx.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
I'd like to present my small patch enabling to use Sanwa PC5000
mulitimeter with linux.
Signed-off-by: Pawel Ludwikow <pludwiko@rab.ict.pwr.wroc.pl>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
And indeed none of them use it. Clean this up as it will make moving to a
standard open method rather easier.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
I am submitting a patch for the pl2303 driver. This patch adds support
for the "Sony QN-3USB" cable (vendor=0x054c, product=0x0437). This USB
cable is a so-called data cable used to connect a Sony mobile phone to a
computer. Supported models are Sony CMD-J5, J6, J7, J16, J26, J70 and
Z7.
I have used this patch with my Sony CMD-J70 for several days and I
haven't encountered any kernel/hardware issue.
From: Khanh-Dang Nguyen Thu Lam <kdntl@yahoo.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
I recently bought a PC interface for the Cressi Edy dive computer
(www.cressi.it) and discovered that it uses the pl2303 chip, albeit
with ad-hoc vendor and product ids (04b8, 0521 respectively). Being in
the process of writing a linux software for such device (cressi only
provides a windows software), I patched the pl2303 linux driver to
have the interface recognized. I am submitting you the patch (very
basic) for inclusion in next kernel version.
From: Gianpaolo Cugola <gianpaoloc@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
PL2303 has private data shovelling methods that also have no fast path. Fix
them to work the same way as the default handler.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The sysrq code acquired a kref leak. Fix it by passing the tty separately
from the caller (thus effectively using the callers kref which all the
callers hold anyway)
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch (as1254) splits up the shutdown method of usb_serial_driver
into a disconnect and a release method.
The problem is that the usb-serial core was calling shutdown during
disconnect handling, but drivers didn't expect it to be called until
after all the open file references had been closed. The result was an
oops when the close method tried to use memory that had been
deallocated by shutdown.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add callbacks to process the sysrq when using a pl2303 usb device as a
console.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This allows us to clean stuff up, but is probably also going to cause
some app breakage with buggy apps as we now implement proper POSIX behaviour
for USB ports matching all the other ports. This does also mean other apps
that break on USB will now work properly.
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add id for the Hewlett-Packard LD220-HP POS pole display.
Bus 002 Device 002: ID 03f0:3524 Hewlett-Packard
Signed-off-by: Mike Provencher <mike.provencher@hp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch adds the "Superial" USB-Serial converter to pl2303 so that it
is detected, by the correct driver. Adds the relevant vendor:product
(5372:2303) to the device tables in pl2303.c & pl2303.h. The patch has
been tested against 2.6.24-22-generic.
Signed-off-by: Matthew D Arnold <matthew.arnold-1@uts.edu.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
USB should not be having it's own printk macros, so remove info() and
use the system-wide standard of dev_info() wherever possible.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Use kref in the USB serial drivers so that we don't free tty structures
from under the URB receive handlers as has historically been the case if
you were unlucky. This also gives us a framework for general tty drivers to
use tty_port objects and refcount.
Contains two err->dev_err changes merged together to fix clashes in the
-next tree.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch removes the private check for the termios_initialized for
the pl2303 usb driver. It forced the baud to 9600 on the first call
to pl2303_set_termios()
Based on the tty changes in the 2.6.27 kernel, the termios passed to
the *_set_termios functions is always populated the first time.
This means there is no need to privately initialize the settings the
first time, and doing so will not allow the use of the kernel
parameter "console=ttyUSB0,115200" as an example.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
USB ID 4348:5523 is handled by the ch341 driver. Remove it from the
pl2023 driver.
Reverts 002e8f2c80.
Signed-off-by: Tollef Fog Heen <tfheen@err.no>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
USB serial likes to use port->tty back pointers for the real work it does and
to do so without any actual locking. Unfortunately when you consider hangup
events, hangup/parallel reopen or even worse hangup followed by parallel close
events the tty->port and port->tty pointers are not guaranteed to be the same
as port->tty is the active tty while tty->port is the port the tty may or
may not still be attached to.
So rework the entire API to pass the tty struct. For console cases we need
to pass both for now. This shows up multiple drivers that immediately crash
with USB console some of which have been fixed in the process.
Longer term we need a proper tty as console abstraction
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
I've just got a USB GPRS/EDGE modem branded Manufacturer Micromax Model
MMX610U (see http://www.airtel.in/level2_t3data.aspx?path=1/106/179)
working by adding another product ID to pl2303. Modem info reports same
module as Max Arnold's i.e.SIMCOM SIM600 but with product ID 0x0612
(cf Ox0611).
From: Steve Murphy <steve@gnusis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch reverts 57833ea6b9
("usb-serial: pl2303: add support for RATOC REX-USB60F") and adds
support for the device to ftdi_sio driver.
Cc: Akira Tsukamoto <akirat@rd.scei.sony.co.jp>
Cc: stable <stable@kernel.org>
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
- If a termios change fails due to lack of memory we should copy the
old settings back over as the device has not changed
- Note various locking problems
- kl5kusb105 had various remaining tty flag handling problems
- Make safe_serial use tty_insert_flip_string not open coded loops
- set termios speed properly in usb_serial
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
__FUNCTION__ is gcc-specific, use __func__
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The usb-serial core no longer checks these fields so remove them from
all of the individual drivers. They will be removed from the usb-serial
core in a patch later in the series.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
these drivers abused intfdata in close() as flags for binding.
That races with reprobing of those devices. This patch fixes that by using
the flag and the locks introduced with the patch against mos7720.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Without this fix, the pl2303 usb-serial adapter would not suspend properly
unless it had been opened first. A pl2303 type_1 chip will still break if the
system is hibernated while the RS-232 connector is powered by another system.
This was broken before, and a reset resume does not fix it. All other suspend
and autosuspend scenarios work with ATEN pl2303 adaptors with HX and type_1 chips.
Signed-off-by: Sarah Sharp <saharabeara@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Replace the FISH and SOUP macros that violated the macro guidelines in CodingStyle.
Turn them into function calls with clearer variable names.
Signed-off-by: Sarah Sharp <saharabeara@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
pl2303: add support for RATOC REX-USB60F
This patch adds support for RATOC REX-USB60F Serial Adapters,
which is widely used in Japan recently.
Cc: stable <stable@kernel.org>
Signed-off-by: Akira Tsukamoto <akirat@rd.scei.sony.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This simply adds the "YC Cable" as a vendor and its pl2303-based
USB<->Serial adapter as a product. This particular adapter is sold by
Radio Shack. I've done limited testing on a few different systems with
no issues.
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Cleaning out all the incorrect 'no change made' checks for termios
settings showed up a problem with the PL2303. The hardware here seems to
lose sync and bits if you tell it to make no changes. This shows up with
a real world application.
To fix this the driver check for meaningful hardware changes is restored
but doing the tests correctly and as a tty layer function so it doesn't
get duplicated wrongly everywhere if other drivers turn out to need it.
Signed-off-by: Alan Cox <alan@redhat.com>
Tested-by: Mirko Parthey <mirko.parthey@informatik.tu-chemnitz.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
pl2303: add support for Corega CG-USBRS232R
This patch adds support for Corega CG-USBRS232R Serial Adapters.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch adds support for the IO Data Device USB-RSAQ5, PL2303 based
USB-serial converter, to pl2303 driver
Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch adds support for the BenQ Mobile Phone EF81 to pl2303
Signed-off-by: Andreas Loibl <andreas@andreas-loibl.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This done in anticipation of removal of urb->status, which will make
that patch easier to review and apply in the future.
Cc: <linux-usb-devel@lists.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
in order to be able to switch back to 'flow-control none'
after having activated 'flow-control rts/cts', I made
a small change to 'pl2303.c'.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Every usb serial driver should have a pointer to the corresponding usb driver.
So the usb serial core can add a new id not only to the usb serial driver, but
also to the usb driver.
Also the usb drivers of ark3116, mos7720 and mos7840 missed the flag
no_dynamic_id=1. This is added now.
Signed-off-by: Johannes Hölzl <johannes.hoelzl@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Run this:
#!/bin/sh
for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do
echo "De-casting $f..."
perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f
done
And then go through and reinstate those cases where code is casting pointers
to non-pointers.
And then drop a few hunks which conflicted with outstanding work.
Cc: Russell King <rmk@arm.linux.org.uk>, Ian Molton <spyro@f2s.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Greg KH <greg@kroah.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Paul Fulghum <paulkf@microgate.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Karsten Keil <kkeil@suse.de>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Ian Kent <raven@themaw.net>
Cc: Steven French <sfrench@us.ibm.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Cc: Jaroslav Kysela <perex@suse.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This is the grungy swap all the occurrences in the right places patch that
goes with the updates. At this point we have the same functionality as
before (except that sgttyb() returns speeds not zero) and are ready to
begin turning new stuff on providing nobody reports lots of bugs
If you are a tty driver author converting an out of tree driver the only
impact should be termios->ktermios name changes for the speed/property
setting functions from your upper layers.
If you are implementing your own TCGETS function before then your driver
was broken already and its about to get a whole lot more painful for you so
please fix it 8)
Also fill in c_ispeed/ospeed on init for most devices, although the current
code will do this for you anyway but I'd like eventually to lose that extra
paranoia
[akpm@osdl.org: bluetooth fix]
[mp3@de.ibm.com: sclp fix]
[mp3@de.ibm.com: warning fix for tty3270]
[hugh@veritas.com: fix tty_ioctl powerpc build]
[jdike@addtoit.com: uml: fix ->set_termios declaration]
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Martin Peschke <mp3@de.ibm.com>
Acked-by: Peter Oberparleiter <oberpar@de.ibm.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
of passing regs around manually through all ~1800 interrupt handlers in the
Linux kernel.
The regs pointer is used in few places, but it potentially costs both stack
space and code to pass it around. On the FRV arch, removing the regs parameter
from all the genirq function results in a 20% speed up of the IRQ exit path
(ie: from leaving timer_interrupt() to leaving do_IRQ()).
Where appropriate, an arch may override the generic storage facility and do
something different with the variable. On FRV, for instance, the address is
maintained in GR28 at all times inside the kernel as part of general exception
handling.
Having looked over the code, it appears that the parameter may be handed down
through up to twenty or so layers of functions. Consider a USB character
device attached to a USB hub, attached to a USB controller that posts its
interrupts through a cascaded auxiliary interrupt controller. A character
device driver may want to pass regs to the sysrq handler through the input
layer which adds another few layers of parameter passing.
I've build this code with allyesconfig for x86_64 and i386. I've runtested the
main part of the code on FRV and i386, though I can't test most of the drivers.
I've also done partial conversion for powerpc and MIPS - these at least compile
with minimal configurations.
This will affect all archs. Mostly the changes should be relatively easy.
Take do_IRQ(), store the regs pointer at the beginning, saving the old one:
struct pt_regs *old_regs = set_irq_regs(regs);
And put the old one back at the end:
set_irq_regs(old_regs);
Don't pass regs through to generic_handle_irq() or __do_IRQ().
In timer_interrupt(), this sort of change will be necessary:
- update_process_times(user_mode(regs));
- profile_tick(CPU_PROFILING, regs);
+ update_process_times(user_mode(get_irq_regs()));
+ profile_tick(CPU_PROFILING);
I'd like to move update_process_times()'s use of get_irq_regs() into itself,
except that i386, alone of the archs, uses something other than user_mode().
Some notes on the interrupt handling in the drivers:
(*) input_dev() is now gone entirely. The regs pointer is no longer stored in
the input_dev struct.
(*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does
something different depending on whether it's been supplied with a regs
pointer or not.
(*) Various IRQ handler function pointers have been moved to type
irq_handler_t.
Signed-Off-By: David Howells <dhowells@redhat.com>
(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
Patch to add support for Alcor Micro Corp. USB 2.0 TO RS-232 converter.
This patch adds VID and PID to pl2303.[ch], adds it to the "HORRIBLE
HACK FOR PL2303" in usb-serial.c and also prevents cdc-acm to claim
driving this device by blacklisting it in hid-core.
Signed-off-by: Johannes Steingraeber <Jo_Stein@web.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Changes the functions pl2303_buf_clear and pl2303_buf_data_avail for
the purpose of keeping them under the 80 column limit, making them
more similar to similar functions and making then simpler.
Signed-off-by: Thiago Galesi <thiagogalesi@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fixes several lines that overrun 80 columns in Prolific pl2303 driver
and cleans up some space usages in the function calls.
Signed-off-by: Thiago Galesi <thiagogalesi@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch removes support for a clone of Nokia DKU-5 cable made by Ours
Technology Inc, as it turned out that the cable does not use the pl2303
chip, but OTI-6858 chip which is not compatible with the pl2303.
Signed-off-by: Tomasz Kazmierczak <tomek.fizyk@op.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Can you add the USB IDs for the Belkin USB Serial adapter (P/N F5U257)
to the pl2303 driver in the Linux Kernel? Are you the appropriate person
to approach for this?
I recently purchased a Belkin USB Serial adapter (P/N F5U257) and found
that it didn't work. After a bit of experimentation I found that it
works with the pl2303 driver once the ID has been added. See attached
patch to fix this. Also attached is the output from lsusb -v just in
case you require any information from there.
From: Kim Oldfield <luv@oldfield.wattle.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
USB serial outside of the kernel tree can not build properly due to
usb-serial.h being buried down in the source tree. This patch moves the
location of the file to include/linux/usb and fixes up all of the usb
serial drivers to handle the move properly.
Cc: Sergei Organov <osv@javad.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The Susteen Datapilot cable
(http://www.susteen.com/productdetail/71/producthl/Notempty) has an
internal pl2303 to communicate with a set of dummy connector-ends that
connect to a variety of cell phones. I've found that it works right out
of the box by simply adding the product/vendor id to the pl2303 driver.
Signed-off-by: Matt Meno <mmeno@idealcorp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Text from the back of the box, for your information/amusement:
USB DATA CABLE
FOR K700 Series
The USB Cable is an ideal link between your mobile phone and PC. Employing
the user-friendiy [sic] USB standard,its capacity for rapid data transfer enables functions
such as synchronization of phone book and calendar,as well as Internet browsing via
a modem-enabled phone.Autual [sic] connection speed is dependent on phone capacity.
MADE IN CHINA
From: Peter Moulder <Peter.Moulder@infotech.monash.edu.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
I'm going to throw schedule_work away, it's retarded. But for starters,
let's have it encapsulated.
Also, generic and whiteheat were both calling usb_serial_port_softint
and scheduled work. Only one was necessary.
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add new iTegno usb CDMA 1x card (usbid '0eba:2080') support to pl2303 driver
Signed-off-by: Wang Jun <wangjun1974@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch adds support for a clone of Nokia DKU-5 cable made by
Ours Technology Inc for Nokia phones with PopPort (Nokia 3100 and others).
The cable uses PL2303 USB-to-serial converter from Prolific Technology Inc.
Signed-off-by: Tomasz Kazmierczak <tomek.fizyk@op.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The USB data cable for my Samsung GSM phone contains the USB-to-serial
converter chip MS3303H from Speed Dragon Multimedia, Inc. that appears to
be compatible with the PL2303 chip. The following patch adds support for
this chip to the pl2303 driver.
Signed-off-by: Dick Streefland <dick@streefland.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Johan Hovold