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path: root/drivers/usb/serial/mct_u232.c
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* USB: usb-serial: replace shutdown with disconnect, releaseAlan Stern2009-06-151-8/+5
| | | | | | | | | | | | | | | | 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>
* tty: Bring the usb tty port structure into more useAlan Cox2009-06-111-18/+19
| | | | | | | | | | 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>
* tty: Drop the lock_kernel in the private ioctl hookAlan Cox2009-01-021-1/+1
| | | | | | | | We don't need the BKL here any more so it can go. In a couple of spots the driver requirements are not clear so push the lock down into the driver. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* USB: remove use of err() in drivers/usb/serialGreg Kroah-Hartman2008-10-171-15/+24
| | | | | | | | | err() is going away, so switch to dev_err() or printk() if it's really needed. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: remove info() macro from usb/serial driversGreg Kroah-Hartman2008-10-171-1/+2
| | | | | | | 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>
* tty: usb-serial krefsAlan Cox2008-10-131-2/+4
| | | | | | | | | | | | | 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>
* mct_u232: Use flip buffer functionsAlan Cox2008-07-221-3/+1
| | | | | | 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>
* tty-usb-mct-u232: Coding styleAlan Cox2008-07-221-132/+141
| | | | | | 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>
* usb_serial: API all changeAlan Cox2008-07-221-72/+49
| | | | | | | | | | | | | | | | | | | 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>
* USB: remove unnecessary type casting of urb->contextMing Lei2008-04-241-1/+1
| | | | | | | | urb->context code cleanup Signed-off-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: replace remaining __FUNCTION__ occurrencesHarvey Harrison2008-04-241-18/+18
| | | | | | | | __FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: serial: remove unneeded number endpoints settingsGreg Kroah-Hartman2008-04-241-3/+0
| | | | | | | | | 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>
* USB: make sure usb serial drivers don't flush to logically disconnected devicesOliver Neukum2008-02-011-8/+9
| | | | | | | | | | | If disconnect() is called for a logical disconnect, no more IO must be done after disconnect() returns, or the old and new drivers may conflict. This patch avoids this by using the flag and lock introduced by the earlier patch for the mos7720 driver. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: mct232: speed, new termios and compliance cleanupsAlan Cox2008-02-011-9/+17
| | | | | | | | Signed-off-by: Alan Cox <alan@redhat.com> Cc: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: mct_u232-convert-to-proper-speed-handling-api-fixAndrew Morton2007-10-121-14/+14
| | | | | | | | | | Make Pete happy Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: mct_u232: Convert to proper speed handling APIAlan Cox2007-07-301-27/+27
| | | | | | | Signed-off-by: Alan Cox <alan@redhat.com> Acked-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: serial: mct_u232: clean up urb->status usageGreg Kroah-Hartman2007-07-121-7/+10
| | | | | | | | | | | 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> Cc: Wolfgang Grandegger <wolfgang@ces.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: RTS/CTS handshaking support, DTR fixes for MCT U232 serial adapterDave Platt2007-07-121-34/+98
| | | | | | | | | | | | Improvements and fixes to the MCT U232 USB/serial interface driver. Implement RTS/CTS hardware flow control. Implement HUPCL. Bring handling of DTR and RTS into conformance with other Linux serial port drivers - assert both signals when opening device, even if "crtscts" is not currently selected. Signed-off-by: Dave Platt <dplatt@radagast.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: fix error handling for mct_u232Oliver Neukum2007-04-271-4/+8
| | | | | | | | we report errors to the caller. THis patch adds error handling to the driver. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB serial: add driver pointer to all usb-serial driversJohannes Hölzl2007-02-071-0/+1
| | | | | | | | | | | | | | 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>
* [PATCH] tty: switch to ktermiosAlan Cox2006-12-081-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* usb: mct_u232 free urb cleanupMariusz Kozlowski2006-12-011-4/+2
| | | | | | | | - usb_free_urb() cleanup Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells2006-10-051-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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] USB: move usb-serial.h to include/linux/usb/Greg Kroah-Hartman2006-07-121-1/+1
| | | | | | | | | | 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>
* Remove obsolete #include <linux/config.h>Jörn Engel2006-06-301-1/+0
| | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [PATCH] USB: kzalloc() conversion for rest of drivers/usbEric Sesterhenn2006-03-201-2/+1
| | | | | Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: remove .owner field from struct usb_driverGreg Kroah-Hartman2006-01-041-1/+0
| | | | | | It is no longer needed, so let's remove it, saving a bit of memory. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: allow usb drivers to disable dynamic idsGreg Kroah-Hartman2006-01-041-0/+1
| | | | | | | | | | | This lets drivers, like the usb-serial ones, disable the ability to add ids from sysfs. The usb-serial drivers are "odd" in that they are really usb-serial bus drivers, not usb bus drivers, so the dynamic id logic will have to go into the usb-serial bus core for those drivers to get that ability. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB Serial: move name to driver structureGreg Kroah-Hartman2005-10-281-2/+2
| | | | | | | | This fixes up a lot of problems in sysfs with some of the usb serial drivers, they had incorrect driver names. Also saves a tiny ammount of memory. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB Serial: get rid of the .owner field in usb_serial_driverGreg Kroah-Hartman2005-10-281-1/+3
| | | | | | Don't duplicate something that's already in struct driver. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB Serial: rename usb_serial_device_type to usb_serial_driverGreg Kroah-Hartman2005-10-281-1/+1
| | | | | | | I'm tired of trying to explain why a "device_type" is really a driver. This better describes exactly what this structure is. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-161-0/+781
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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