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* USB: xhci: Set route string for all devices.Sarah Sharp2009-09-232-3/+8
| | | | | | | | | | | | | | The xHCI driver needs to set the route string in the slot context of all devices, not just SuperSpeed devices. The route string concept was added in the USB 3.0 specification, section 10.1.3.2. Each hub in the topology is expected to have no more than 15 ports in order for the route string of a device to be unique. SuperSpeed hubs are restricted to only having 15 ports, but FS/LS/HS hubs are not. The xHCI specification says that if the port number the device is under is greater than 15, that portion of the route string shall be set to 15. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: xhci: Fix command wait list handling.Sarah Sharp2009-09-231-17/+29
| | | | | | | | | | | | | | | | | | | In the xHCI driver, configure endpoint commands that are submitted to the hardware may involve one of two data structures. If the configure endpoint command is setting up a new configuration or modifying max packet sizes, the data structures and completions are statically allocated in the xhci_virt_device structure. If the command is being used to set up streams or add hub information, then the data structures are dynamically allocated, and placed on a device command waiting list. Break out the code to check whether a completed command is in the device command waiting list. Fix a subtle bug in the old code: continue processing the command if the command isn't in the wait list. In the old code, if there was a command in the wait list, but it didn't match the completed command, the completed command event would be dropped. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: xhci: Change how xHCI commands are handled.Sarah Sharp2009-09-234-53/+186
| | | | | | | | | | | | | | | | | | | | | | | | Some commands to the xHCI hardware cannot be allowed to fail due to out of memory issues or the command ring being full. Add a way to reserve a TRB on the command ring, and make all command queueing functions indicate whether they are using a reserved TRB. Add a way to pre-allocate all the memory a command might need. A command needs an input context, a variable to store the status, and (optionally) a completion for the caller to wait on. Change all code that assumes the input device context, status, and completion for a command is stored in the xhci virtual USB device structure (xhci_virt_device). Store pending completions in a FIFO in xhci_virt_device. Make the event handler for a configure endpoint command check to see whether a pending command in the list has completed. We need to use separate input device contexts for some configure endpoint commands, since multiple drivers can submit requests at the same time that require a configure endpoint command. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: xhci: Refactor input device context setup.Sarah Sharp2009-09-231-9/+18
| | | | | | | | | | Refactor common code to set up the add and drop flags for the input device context setup. This setup is used before a configure endpoint command for the reset endpoint quirk, and will be used for the command to alloc or free streams rings. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: xhci: Endpoint representation refactoring.Sarah Sharp2009-09-234-100/+115
| | | | | | | | | | | | | | | | | | The xhci_ring structure contained information that is really related to an endpoint, not a ring. This will cause problems later when endpoint streams are supported and there are multiple rings per endpoint. Move the endpoint state and cancellation information into a new virtual endpoint structure, xhci_virt_ep. The list of TRBs to be cancelled should be per endpoint, not per ring, for easy access. There can be only one TRB that the endpoint stopped on after a stop endpoint command (even with streams enabled); move the stopped TRB information into the new virtual endpoint structure. Also move the 31 endpoint rings and temporary ring storage from the virtual device structure (xhci_virt_device) into the virtual endpoint structure (xhci_virt_ep). Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: gadget: ether needs to select CRC32Randy Dunlap2009-09-231-0/+1
| | | | | | | | | | Fix build error, ether uses/needs to select CRC32 config symbol: ether.c:(.text+0x271480): undefined reference to `crc32_le' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: fix USBTMC get_capabilities success handlingGergely Imreh2009-09-231-5/+8
| | | | | | | | | | | In order: Add reference to relevant section of USBTMC usb488 subclass specs. Print debug output of capabilities only when it was retrieved successfully. Clear return value on success, otherwise driver always reports failure. Signed-off-by: Gergely Imreh <imrehg@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: fix missing error check in probingOliver Neukum2009-09-231-12/+22
| | | | | | | | | | | | usb: check for IO errors usb_set_interface can return if they happen while unbinding a flag is set to retry upon probe if they happen during probe they are handled as probe errors Signed-off-by: Oliver Neukum <oliver@neukum.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: usbfs: add USBDEVFS_URB_BULK_CONTINUATION flagAlan Stern2009-09-232-1/+78
| | | | | | | | | | | | | | | | | | | | | | | | This patch (as1283) adds a new flag, USBDEVFS_URB_BULK_CONTINUATION, to usbfs. It is intended for userspace libraries such as libusb and openusb. When they have to break up a single usbfs bulk transfer into multiple URBs, they will set the flag on all but the first URB of the series. If an error other than an unlink occurs, the kernel will automatically cancel all the following URBs for the same endpoint and refuse to accept new submissions, until an URB is encountered that is not marked as a BULK_CONTINUATION. Such an URB would indicate the start of a new transfer or the presence of an older library, so the kernel returns to normal operation. This enables libraries to delimit bulk transfers correctly, even in the presence of early termination as indicated by short packets. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: support for autosuspend in sierra while onlineOliver Neukum2009-09-231-5/+152
| | | | | | | | | | | | This implements support for autosuspend in the sierra driver while online. Remote wakeup is used for reception. Transmission is facilitated with a queue and the asynchronous autopm mechanism. To prevent races a private flag for opened ports and a counter of running transmissions needs to be added. Signed-off-by: Oliver Neukum <oliver@neukum.org> Tested-by: Elina Pasheva <epasheva@sierrawireless.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ehci-dbgp,ehci: Allow dbpg to work with suspend/resumeJason Wessel2009-09-231-0/+7
| | | | | | | | | | | | | | | In order for the dbgp driver to survive suspend/resume, on every ehci resume operation the debug controller must get re-initialized. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: dbrownell@users.sourceforge.net Cc: Ingo Molnar <mingo@elte.hu> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Yinghai Lu <yinghai@kernel.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ehci-dbgp,documentation: Documentation updates for ehci-dbgpJason Wessel2009-09-232-3/+38
| | | | | | | | | | | | | | | | | Add missing information about requirements of using the EHCI usb debug controller as well as to mention you can use a debug controller other than the first one in the system. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Yinghai Lu <yinghai@kernel.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Sarah Sharp <sarah.a.sharp@intel.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ehci-dbgp: errata for EHCI debug/host controller synchronizationJason Wessel2009-09-231-12/+29
| | | | | | | | | | | | | | | | | | | | | | | On some EHCI debug controllers after the host controller driver is activated, the debug controller will occasionally fail to submit a bulk write URB. On controllers that exhibit this behavior a dummy bulk write must get submitted to resynchronize the device. The "dummy bulk write" does not get received by the host attached to the other end of the usb debug device. The usb debug device simply acknowledges the "dummy bulk write" and returns to a usable state. The behavior, without this patch is that you see missing text from a complete kernel boot when using the keep option to the earlyprintk kernel argument. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Yinghai Lu <yinghai@kernel.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ehci-dbgp: errata for EHCI debug controller initializationJason Wessel2009-09-232-1/+23
| | | | | | | | | | | | | | | | | | | | | On some EHCI usb debug controllers, the EHCI debug device will fail to be seen after a port reset, after a warm reset. Two options exist to get the device to initialize correctly. Option 1 is to unplug and plug in the device. Option 2 is to use the EHCI port test to get the usb debug device to start talking again. At that point the debug controller port reset will succeed. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Yinghai Lu <yinghai@kernel.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> CC: dbrownell@users.sourceforge.net Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ehci-dbgp,ehci: Allow early or late use of the dbgp deviceJason Wessel2009-09-235-20/+70
| | | | | | | | | | | | | | | | | | | | | | | | | If the EHCI debug port is initialized and in use, the EHCI host controller driver must follow two rules. 1) If the EHCI host driver issues a controller reset, the debug controller driver re-initialization must get called after the reset is completed. 2) The EHCI host driver should ignore any requests to the physical EHCI debug port when the EHCI debug port is in use. The code to check for the debug port was moved from ehci_pci_reinit() to ehci_pci_setup because it must get called prior to ehci_reset() which will clear the debug port registers. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: dbrownell@users.sourceforge.net Cc: Ingo Molnar <mingo@elte.hu> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Yinghai Lu <yinghai@kernel.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ehci-dbgp: stability improvements and external re-initJason Wessel2009-09-232-148/+299
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements several changes: 1) Improve the capability to debug the dbgp driver The dbgp_ehci_status() was added in a number of places to report the critical ehci registers to diagnose the cause of a failure of the ehci-dbgp driver. 2) Capability to survive the host controller initialization The dbgp_external_startup(), dbgp_not_safe, and dbgp_phys_port were added so as to allow the ehci-dbgp to re-initialize after the ehci host controller is reset by the standard host controller driver. This same routine is common for the early startup or re-initialization. This resulted in the need to move some of the initialization code out of the __init section because the ehci driver has the possibility to be loaded later on as a kernel module. 3) Stability improvements for device initialization The device enumeration from 0 to 127 has the possibility to fail the first time after a warm reset on some older EHCI debug controllers. The enumeration will be tried up to 3 times to account for this failure case. The dbg_wait_until_complete() was changed to wait up to 250 ms before failing which only comes into play during device initialization. The maximum delay will never get hit during the course of normal operation of the driver, unless the device got unplugged or there was a ehci controller failure, in which case the dbgp device driver will shut itself down. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: dbrownell@users.sourceforge.net Cc: Yinghai Lu <yinghai@kernel.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* early_printk: Allow more than one early consoleJason Wessel2009-09-231-32/+33
| | | | | | | | | | | | | | | | | | | It is desirable to be able to use one early boot device to debug another or to have multiple places you can see the early boot diagnostics, such as the vga screen or serial device. This patch changes the early_printk console device registration to allow more than one early printk device to get registered via register_console(). Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Yinghai Lu <yinghai@kernel.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: dbgp: EHCI debug controller initialization delaysJason Wessel2009-09-231-19/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | When using the EHCI host controller as a polled device, a bit more tolerance is required in terms of delays. On some 3+ghz systems the cpu loops were faster than the EHCI device mmio and resulted in the controller failing to initialize. On at least one first generation EHCI controller when it was not operating in interrupt mode, it would fail to report a port change status, but executing the port reset allowed the debug controller to work correctly anyway. This errata causes a one time 300ms delay in the boot time, where as the typical delay is 1-5ms for an EHCI controller that does not have this errata. The debug printk's were fixed to have the correct state messages, and there was a conversion from using early_printk to printk to avoid calling the dbgp driver while debugging the initialization. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Yinghai Lu <yinghai@kernel.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ehci-dbgp: Execute early BIOS hand offJason Wessel2009-09-231-0/+49
| | | | | | | | | | | | | | | | The PCI quirk code executes a BIOS hand off to obtain full control of the EHCI host controller, the self contained ehci-dbgp driver must do the same thing using the early PCI API, else the BIOS can cause a fatal fault. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: dbrownell@users.sourceforge.net Cc: Yinghai Lu <yinghai@kernel.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: dbgp: insert cr prior to nl as neededJason Wessel2009-09-231-6/+16
| | | | | | | | | | | | | | | | | The rs232 drivers send a carriage return prior to a new line in the early printk code. The usb debug driver should do the same because you want to be able to use the same terminal programs and tools for analysis of early printk data. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Yinghai Lu <yinghai@kernel.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ehci,dbgp,early_printk: split ehci debug driver from early_printk.cJason Wessel2009-09-235-715/+735
| | | | | | | | | | | | | | | | | | Move the dbgp early printk driver in advance of refactoring and adding new code, so the changes to this code are tracked separately from the move of the code. The drivers/usb/early directory will be the location of the current and future early usb code for driving usb devices prior initializing the standard interrupt driven USB drivers. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Yinghai Lu <yinghai@kernel.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: unusual_devs.h: drop some unneeded floppy entriesPete Zaitcev2009-09-231-21/+1
| | | | | | | | | | | | | We set pdt_1f_for_no_lun for UFI devices, so most floppy entiries should be unnecessary. This patch removes three entries which I'm certain are. - For Mitsumi I have a customer with RHEL 5 (bz#514296) - For SMSC I accessed Novell's Bugzilla and verified the entry - For Y-E I tested the patch with the actual device Signed-off-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Phil Dibowitz <phil@ipom.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: fix paths in usbmon documentationRogério Brito2009-09-231-3/+3
| | | | | | | | | | | | | | | | | | | Hi there. On Aug 21 2009, Alan Stern wrote: > On Thu, 20 Aug 2009, Rogério Brito wrote: > > Again, just reiterating, what I said before, even though I am not sure > > if I can reproduce it, I will try to. > > A usbmon trace showing what happens when you plug in the drive and > when you run smartctl would help. The documentation for usbmon in the kernel 2.6.31-rc7 kernel doesn't match what the kernel exposes in the debug fs tree. This patch fixes it. Signed-off-by: Rogério Brito <rbrito@ime.usp.br> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: OMAP: ISP1301: Compile fixAnand Gadiyar2009-09-231-20/+3
| | | | | | | | | | | | | | | | | | | | | | | OMAP: ISP1301: Compile fix Fix this build error on non- OMAP-H2/H3/H4 systems: (factored out two empty functions as part of the fix) CC drivers/usb/otg/isp1301_omap.o drivers/usb/otg/isp1301_omap.c: In function 'otg_update_isp': drivers/usb/otg/isp1301_omap.c:635: error: implicit declaration of function 'notresponding' drivers/usb/otg/isp1301_omap.c: In function 'b_peripheral': drivers/usb/otg/isp1301_omap.c:973: error: implicit declaration of function 'enable_vbus_draw' drivers/usb/otg/isp1301_omap.c: In function 'isp_update_otg': drivers/usb/otg/isp1301_omap.c:1003: error: implicit declaration of function 'enable_vbus_source' make[2]: *** [drivers/usb/otg/isp1301_omap.o] Error 1 make[1]: *** [drivers/usb/otg] Error 2 make: *** [drivers] Error 2 Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: gadget: double free_irq() in at91udc_probe()Roel Kluin2009-09-231-1/+0
| | | | | | | | If request_irq() fails, udp_irq is freed twice. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: Clean up root hub string descriptorsGeorge Spelvin2009-09-231-47/+64
| | | | | | | | | | The previous code had a bug that would add a trailing null byte to the returned descriptor. Signed-off-by: George Spelvin <linux@horizon.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: double put_tty_driver(gs_tty_driver) in gserial_setup()Roel Kluin2009-09-231-1/+0
| | | | | | | | | | | | If the driver cannot be registered, put_tty_driver(gs_tty_driver) occurred here as well as at label fail. put_tty_driver() already occurs at label fail Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: make usb_buffer_map_sg consistent with docJiri Slaby2009-09-231-2/+2
| | | | | | | | | | | | | | | | | | usb_buffer_map_sg should return negative on error according to its documentation. But dma_map_sg returns 0 on error. Take this into account and return -ENOMEM in such situation. While at it, return -EINVAL instead of -1 when wrong input is passed in. If this wasn't done, usb_sg_* operations used after usb_sg_init which returned 0 may cause oopses/deadlocks since we don't init structures/entries, esp. completion and status entry. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: EHCI: change deschedule logic for interrupt QHsAlan Stern2009-09-233-34/+40
| | | | | | | | | | | | | | | | | | | This patch (as1281) changes the way ehci-hcd deschedules interrupt QHs, copying the approach used for async QHs. The caller is no longer responsible for rescheduling the QH if its queue is non-empty; instead the reschedule is done directly by intr_deschedule(), after calling qh_completions(). This is exactly the same as how end_unlink_async() works. ehci_urb_dequeue() and intr_deschedule() now correctly handle the case where they are called while another interrupt URB for the same QH is being given back. This was a surprisingly large blind spot. And scan_periodic() now respects the new needs_rescan flag. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: EHCI: rescan the queue after an unlinkAlan Stern2009-09-233-12/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch (as1280) fixes an obscure bug in ehci-hcd's dequeuing logic for async URBs. If a later URB is unlinked and the completion routine unlinks an earlier URB, then the earlier URB won't be given back in a timely manner because the endpoint queue isn't rescanned as it should be. Similar bugs occur if an endpoint is reset or a halt is cleared while a completion routine is running, because the subroutines don't test for the COMPLETING state. All these problems are solved by adding a new needs_rescan flag to the ehci_qh structure. If the flag is set while scanning through an idle QH, the scan will be repeated. If the QH isn't idle then an unlink cycle will be initiated, and the proper action will be taken when it becomes idle. Also, an unnecessary test is removed from qh_link_async(): That routine is never called if the QH's state isn't IDLE. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: fsl_qe_udc: Add fsl,mpc8323-qe-usb compatible entryAnton Vorontsov2009-09-231-0/+4
| | | | | | | | | | | Current bindings specify that "fsl,mpc8323-qe-usb" compatible entry should be used as a base match for QE UDCs, so update the driver to comply with the bindings. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB-serial: pl2303: use 1.5 instead of 2 stop bits with 5 data bitsFrank Schaefer2009-09-231-2/+10
| | | | | | | | 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>
* USB-serial: pl2303: add space/mark parityFrank Schaefer2009-09-231-4/+14
| | | | | | | 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>
* USB-serial: pl2303: fix baud rate handling in case of unsupported valuesFrank Schaefer2009-09-231-2/+38
| | | | | | | | | | | | | | | | | | | | | | 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>
* USB: iuu_phoenix: add a way to select the default VCCOlivier Bornet2009-09-231-1/+6
| | | | | | | Using the module parameter vcc_default, you can choose the default VCC value. Signed-off-by: Olivier Bornet <Olivier.Bornet@puck.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: iuu_phoenix: increment version numberOlivier Bornet2009-09-231-1/+1
| | | | | Signed-off-by: Olivier Bornet <Olivier.Bornet@puck.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: iuu_phoenix: add support for changing VCCOlivier Bornet2009-09-231-0/+93
| | | | | | | | You can now set the IUU reader to 3.3V VCC instead of 5V VCC, using the sysfs parameter vcc_mode. Valid values are 3 and 5. Signed-off-by: Olivier Bornet <Olivier.Bornet@puck.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: iuu_phoenix: clean-up parameter's descriptionsOlivier Bornet2009-09-231-5/+6
| | | | | Signed-off-by: Olivier Bornet <Olivier.Bornet@puck.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: iuu_phoenix: Don't reset the device at closeOlivier Bornet2009-09-231-4/+0
| | | | | | | | Resetting the device cause the device to have a new name in the /dev. Signed-off-by: Olivier Bornet <Olivier.Bornet@puck.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: usbtmc: correct termination condition for reads.Steve Holland2009-09-231-1/+2
| | | | | | | | | Follow T&M convention of obeying EOM flag. Avoid exception cases where instrument response size matches a buffer size. Signed-off-by: Steve Holland <sdh4@iastate.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: usbtmc: inhibit corruptionSteve Holland2009-09-231-0/+4
| | | | | | | | | Limit data copied to userspace to amount requested. Prevents a faulty instrument from overwriting user memory. Signed-off-by: Steve Holland <sdh4@iastate.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: usbtmc: Fix short reads in usbtmc_read()Steve Holland2009-09-231-4/+4
| | | | | | | | | The header size should not be included in the number of bytes requested of the instrument Signed-off-by: Steve Holland <sdh4@iastate.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USb: Break support for WinChipHead CH341 340 USB->Serial "chip"Tim Small2009-09-231-0/+52
| | | | | | | | | Here is a patch to the ch341 driver which adds serial break support. Signed-off-by: Tim Small <tim@seoss.co.uk> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: s3c2410: unregister should call unbind, not disconnectAlan Stern2009-09-231-2/+1
| | | | | | | | | | This patch (as1275) fixes the s3c2410 device controller driver. Its usb_gadget_unregister_driver() routine is supposed to call the gadget driver's unbind method, not the disconnect method. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: gadget: Add EEM gadget driverBrian Niebuhr2009-09-238-48/+699
| | | | | | | | | | | | | | | | | | This patch adds a CDC EEM ethernet gadget driver. CDC EEM is a newer USB ethernet specification that uses a simpler interface than the older CDC ECM. This makes CDC EEM usable by a wider set of USB hardware. By default the ethernet gadget will still use CDC ECM/Subset, but kernel configuration and/or a module parameter will allow alternative use of the CDC EEM protocol. Changes since last version: - Brought in missing RNDIS changes that caused compile error - Modified 'sentinel CRC' checking to match EEM host driver Signed-off-by: Brian Niebuhr <bniebuhr@efjohnson.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: remove unneeded printks from microtek driverOliver Neukum2009-09-231-37/+0
| | | | | | | | | These printks can be removed as they only provide information about the driver not the device and nobody has ever provided feedback. Signed-off-by: Oliver Neukum <oliver@neukum.org>
* USB: use kfifo to buffer usb-generic serial writesDavid VomLehn2009-09-233-81/+134
| | | | | | | | | | | | | | | | | | When do_output_char() attempts to write a carriage return/line feed sequence, it first checks to see how much buffer room is available. If there are at least two characters free, it will write the carriage return/line feed with two calls to tty_put_char(). It calls the tty_operation functions write() for devices that don't support the tty_operations function put_char(). If the USB generic serial device's write URB is not in use, it will return the buffer size when asked how much room is available. The write() of the carriage return will cause it to mark the write URB busy, so the subsequent write() of the line feed will be ignored. This patch uses the kfifo infrastructure to implement a write FIFO that accurately returns the amount of space available in the buffer. Signed-off-by: David VomLehn <dvomlehn@cisco.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ohci-ep93xx.c: remove unused variableH Hartley Sweeten2009-09-231-1/+0
| | | | | | | | | | | | Remove unused variable in ohci-ep93xx.c. This only shows up when CONFIG_PM is enabled. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Lennert Buytenhek <kernel@wantstofly.org> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: otg: fix twl4030-usb buildRandy Dunlap2009-09-231-1/+1
| | | | | | | | | | | | | | | | subsys_initcall_sync() is only defined for built-in code, not for loadable modules, so this driver build fails when built as a module. However, the _sync() forms of the initcalls are not implemented, so this should not be used -- just use the non-sync form of it. drivers/usb/otg/twl4030-usb.c:777: warning: data definition has no type or storage class drivers/usb/otg/twl4030-usb.c:777: warning: type defaults to 'int' in declaration of 'subsys_initcall_sync' drivers/usb/otg/twl4030-usb.c:777: warning: parameter names (without types) in function declaration Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Felipe Balbi <felipe.balbi@nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: Fix CDC EEM host driver 'sentinel' CRC validationBrian Niebuhr2009-09-231-7/+10
| | | | | | | | | | | | | This is an alternate solution to the EEM 'sentinel' CRC valiation issue. CDC EEM allows using a 'sentinel' ethernet frame CRC of 0xdeadbeef in place of a real CRC. The 'sentinel' value is transmitted in big-endian order whereas the normal CRC is little-endian. This patch handles both cases appropriately. Signed-off-by: Brian Niebuhr <bniebuhr@efjohnson.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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