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* USB: fix usb serial pm counter decrement for disconnected interfacesOliver Neukum2008-07-21
| | | | | | | | | | | | usb serial decrements the pm counter even if an interface has been disconnected. If it was a logical disconnect the interface may belong already to another driver. This patch introduces a check for disconnected interfaces. Signed-off-by: Oliver Neukum <oneukum@suse.de> Cc: Stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: autosuspend for cdc-wdmOliver Neukum2008-07-21
| | | | | | | | | | | | this patch implements - suspend/resume - aggressive autosuspend for the cdc-wdm driver - pre/post_reset Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: additional power savings for cdc-acm devices that support remote wakeupOliver Neukum2008-07-21
| | | | | | | | | | | | | | this patch saves power for cdc-acm devices that support remote wakeup while the device is connected. - request needs_remote_wakeup when needed - delayed write while a device is autoresumed - the device is marked busy when appropriate Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: keyspan: Remove duplicate device entriesBen Collins2008-07-21
| | | | | | | | | | The 28xb, as documented in comments, has the same ID's as the 28x. Remove the duplicated ID's from the device tables, and expand the comment to document this. Signed-off-by: Ben Collins <ben.collins@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb: fix uninitialized variable warning in keyspan_pdaBenny Halevy2008-07-21
| | | | | | | This fixes the compiler warning. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb: r8a66597-hcd: fix iinterval for Full/Low speed deviceYoshihiro Shimoda2008-07-21
| | | | | | | | fix interrupt transfer interval for Full/Low speed device. Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb: r8a66597-hcd: fix interrupt triggerYoshihiro Shimoda2008-07-21
| | | | | | | | fix the problem that did not set IRQF_TRIGGER_ flag. Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: fix usb_reset_device and usb_reset_composite_device(take 3)Ming Lei2008-07-21
| | | | | | | | | | | | | | | | | | | | This patch renames the existing usb_reset_device in hub.c to usb_reset_and_verify_device and renames the existing usb_reset_composite_device to usb_reset_device. Also the new usb_reset_and_verify_device does't need to be EXPORTED . The idea of the patch is that external interface driver should warn the other interfaces' driver of the same device before and after reseting the usb device. One interface driver shoud call _old_ usb_reset_composite_device instead of _old_ usb_reset_device since it can't assume the device contains only one interface. The _old_ usb_reset_composite_device is safe for single interface device also. we rename the two functions to make the change easily. This patch is under guideline from Alan Stern. Signed-off-by: Ming Lei <tom.leiming@gmail.com>
* USB: usb-serial: fix a sparse warning about different signednessAndre Haupt2008-07-21
| | | | | | | | | | | | | fix the following sparse warning: drivers/usb/serial/usb-serial.c:927:43: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/usb-serial.c:927:43: expected unsigned int *minor drivers/usb/serial/usb-serial.c:927:43: got int *<noident> CHECK drivers/usb/serial/generic.c Signed-off-by: Andre Haupt <andre@bitwigglers.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: isp1760: Support board-specific hardware configurationsNate Case2008-07-21
| | | | | | | | | | | | | | This adds support for hardware configurations that don't match the chip default register settings (e.g., 16-bit data bus, DACK and DREQ pulled up instead of down, analog overcurrent mode). These settings are passed in via the OF device tree. The PCI interface still assumes the same default values. Signed-off-by: Nate Case <ncase@xes-inc.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: fix comment of usb_set_configurationMing Lei2008-07-21
| | | | | | | | | It is the usb interface driver probe() methods that can't call usb_set_configuration, not usb device driver. Signed-off-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: use standard SG iterator in the scatter-gather libraryAlan Stern2008-07-21
| | | | | | | | | | | This patch (as1103) changes the iteration in the USB scatter-gather to use a standard SG iterator. Otherwise the iteration will fail if it encounters a chained SG list. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: remove interface parameter of usb_reset_composite_deviceMing Lei2008-07-21
| | | | | | | | | | | | | From the current implementation of usb_reset_composite_device function, the iface parameter is no longer useful. This function doesn't do something special for the iface usb_interface,compared with other interfaces in the usb_device. So remove the parameter and fix the related caller. Signed-off-by: Ming Lei <tom.leiming@gmail.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: AccessRunner: avoid unnecessary memsetChristophe Jaillet2008-07-21
| | | | | | | | | | Remove an explicit memset(.., 0, ...) to a variable allocated with kzalloc (i.e. 'card_info' array of the structure 'instance'). Signed-off-by: Christophe Jaillet <christophe.jaillet@wanadoo.fr> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: drivers/usb/host/isp1760-hcd.c: processor flags have type `unsigned long'Andrew Morton2008-07-21
| | | | | | Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: cdc-wdm cleanupOliver Neukum2008-07-21
| | | | | | | | | | - fixes an error with filling out control requests - increases grepability and error logging - fixes the short read code path Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: delete airprime driverGreg Kroah-Hartman2008-07-21
| | | | | | | | This driver is only for one device id, and the option driver should be used instead for it. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: usbmon: use simple_read_from_buffer()Akinobu Mita2008-07-21
| | | | | | | | Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Acked-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: uhci: mark root_hub_hub_des[] as constMing Lei2008-07-21
| | | | | | | | | mark this array as const because it is read-only Signed-off-by: Ming Lei <tom.leiming@gmail.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: host: mark const variable tables as "const"Ming Lei2008-07-21
| | | | | | | | | | | Mark the tables as const so that they end up in .rodata section and don't cacheline share with things that get written to. Signed-off-by: Ming Lei <tom.leiming@gmail.com> Cc: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb: irda: cleanup on ir-usb moduleFelipe Balbi2008-07-21
| | | | | | | | | | | | | General cleanup on ir-usb module. Introduced a common header that could be used also on usb gadget framework. Lot's of cleanups and now using macros from the header file. Signed-off-by: Felipe Balbi <me@felipebalbi.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ehci-hcd unlink speedupsDavid Brownell2008-07-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes some performance bugs observed with some workloads when unlinking EHCI queue header (QH) descriptors from the async ring (control/bulk schedule). The mechanism intended to defer unlinking an empty QH (so there is no penalty in common cases where it's quickly reused) was not working as intended. Sometimes the unlink was scheduled: - too quickly ... which can be a *strong* negative effect, since that QH becomes unavailable for immediate re-use; - too slowly ... wasting DMA cycles, usually a minor issue except for increased bus contention and power usage; Plus there was an extreme case of "too slowly": a logical error in the IAA watchdog-timer conversion meant that sometimes the unlink never got scheduled. The fix replaces a simple counter with a timestamp derived from the controller's 8 KHz microframe counter, and adjusts the timer usage for some issues associated with HZ being less than 8K. (Based on a patch originally by Alan Stern, and good troubleshooting from Leonid.) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Leonid <leonidv11@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb: hub: add check for unsupported bus topologyFelipe Balbi2008-07-21
| | | | | | | | | | We can't allow hubs on the 7th tier as they would allow devices on the 8th tier. Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ohci_hcd hang: submit vs. rmmod racePete Zaitcev2008-07-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | If we do rmmod ohci_hcd while an application is doing something, the following may happen: - a control URB completes (in finish_urb) and the ohci's endpoint is set into ED_UNLINK in ed_deschedule - same URB is (re)submitted because of the open/close loop or other such application behaviour - rmmod sets the state to HC_STATE_QUESCING - finish_unlinks happens at next SOF; normally it would set ed into ED_IDLE and immediately call ed_schedule (since URB had extra TDs queued), which sets it into ED_OPER. But the check in ed_schedule makes it fail with -EAGAIN (which is ignored) - from now on we have a dead URB stuck; it cannot even be unlinked because the ed status is not ED_OPER, and thus start_ed_unlink is not invoked. This patch removes the check. In 2.6.25, all callers check for __ACTIVE bit before invoking ed_schedule, which is more appropriate. Alan Stern and David Brownell approved of this (cautiously). Signed-off-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: make SA1111 OHCI driver SA11x0 specificEric Miao2008-07-21
| | | | | | | | | | | | | As RMK pointed out, considering the fact that the _only_ platform with a PXA and SA1111 is the Lubbock, and that SA1111 DMA doesn't work there, (i.e. the SA1111 OHCI doesn't work there) the SA1111 OHCI driver should really be made SA11x0 specific. Signed-off-by: Eric Miao <eric.miao@marvell.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: missing usb_put_hcd to ohci-at91Pete Zaitcev2008-07-21
| | | | | | | | | | Looks like usb_put_hcd was missing. Also, make an always-zero function return void. Signed-off-by: Pete Zaitcev <zaitcev@yahoo.com> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: speedtch.c fix sparse shadowed variable warningHarvey Harrison2008-07-21
| | | | | | | | | | i is used only as a for-loop index no need to declare another. drivers/usb/atm/speedtch.c:832:7: warning: symbol 'i' shadows an earlier one drivers/usb/atm/speedtch.c:766:6: originally declared here Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: cp2101.c fix sparse signedness mismatch warningsHarvey Harrison2008-07-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The get/set 2101_config helpers take an unsigned int rather than an int. It is safe to change these in each case and may even produce better code as it will be an unsigned divide rather than a signed divide in places. All other manipulation was setting/masking bits which will not be affected by the sign change. Fixes the following sparse warnings: drivers/usb/serial/cp2101.c:378:44: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:378:44: expected unsigned int *data drivers/usb/serial/cp2101.c:378:44: got int *<noident> drivers/usb/serial/cp2101.c:388:40: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:388:40: expected unsigned int *data drivers/usb/serial/cp2101.c:388:40: got int *<noident> drivers/usb/serial/cp2101.c:413:42: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:413:42: expected unsigned int *data drivers/usb/serial/cp2101.c:413:42: got int *<noident> drivers/usb/serial/cp2101.c:421:42: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:421:42: expected unsigned int *data drivers/usb/serial/cp2101.c:421:42: got int *<noident> drivers/usb/serial/cp2101.c:444:42: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:444:42: expected unsigned int *data drivers/usb/serial/cp2101.c:444:42: got int *<noident> drivers/usb/serial/cp2101.c:451:42: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:451:42: expected unsigned int *data drivers/usb/serial/cp2101.c:451:42: got int *<noident> drivers/usb/serial/cp2101.c:458:42: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:458:42: expected unsigned int *data drivers/usb/serial/cp2101.c:458:42: got int *<noident> drivers/usb/serial/cp2101.c:471:42: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:471:42: expected unsigned int *data drivers/usb/serial/cp2101.c:471:42: got int *<noident> drivers/usb/serial/cp2101.c:481:42: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:481:42: expected unsigned int *data drivers/usb/serial/cp2101.c:481:42: got int *<noident> drivers/usb/serial/cp2101.c:561:41: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:561:41: expected unsigned int *data drivers/usb/serial/cp2101.c:561:41: got int *<noident> drivers/usb/serial/cp2101.c:591:45: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:591:45: expected unsigned int *data drivers/usb/serial/cp2101.c:591:45: got int *<noident> drivers/usb/serial/cp2101.c:597:41: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:597:41: expected unsigned int *data drivers/usb/serial/cp2101.c:597:41: got int *<noident> drivers/usb/serial/cp2101.c:608:45: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:608:45: expected unsigned int *data drivers/usb/serial/cp2101.c:608:45: got int *<noident> drivers/usb/serial/cp2101.c:614:41: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:614:41: expected unsigned int *data drivers/usb/serial/cp2101.c:614:41: got int *<noident> drivers/usb/serial/cp2101.c:623:45: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:623:45: expected unsigned int *data drivers/usb/serial/cp2101.c:623:45: got int *<noident> drivers/usb/serial/cp2101.c:680:50: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:680:50: expected unsigned int *data drivers/usb/serial/cp2101.c:680:50: got int *<noident> drivers/usb/serial/cp2101.c:690:43: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:690:43: expected unsigned int *data drivers/usb/serial/cp2101.c:690:43: got int *<noident> drivers/usb/serial/cp2101.c:715:41: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:715:41: expected unsigned int *data drivers/usb/serial/cp2101.c:715:41: got int *<noident> Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: digi_accelport.c trivial sparse lock annotationHarvey Harrison2008-07-21
| | | | | | Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ohci-ppc-of: use linux/of_platform.h instead of asmStephen Rothwell2008-07-21
| | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: sisusb: Push down the BKLAlan Cox2008-07-21
| | | | | | | | | This is another case where the lock_kernel appears to be unneccessary and could be removed with a bit more investigative work Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: rio100: Push down the BKLAlan Cox2008-07-21
| | | | | | | | | The BKL is actually probably not needed as the mutex seems sufficient. If so then a further patch to drop it would be a good followup. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: auerwald: Push down the BKL into the driverAlan Cox2008-07-21
| | | | | | | | Also fix the unknown ioctl return code Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: iowarrior: Push down BKLAlan Cox2008-07-21
| | | | | | | | | | I'm pretty sure the mutex is sufficient for all locking but will come back to that later if the USB folks don't beat me to it. For now get rid of the old BKL ioctl method and wrap the ioctl handler Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: usblcd: Push down BKL into driverAlan Cox2008-07-21
| | | | | | | | | | | I'm pretty sure this can be eliminated however I couldn't prove (or find) what stopped the device vanishing mid IOCTL_GET_HARD_VERSION. Perhaps a USB wizard could double check that and see if the lock_kernel can go entirely. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ftdi_usb: Eliminate ioctl and BKL ioctl useAlan Cox2008-07-21
| | | | | | | | ftdi has one ioctl, which is buggy and for debugging. Kill it off Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: gadget: Push BKL down into driversAlan Cox2008-07-21
| | | | | | | | | This keeps the gadget ioctl method wrapped but pushes the BKL down into the gadget code so we can use unlocked_ioctl(). Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb ethernet gadget: use composite gadget frameworkDavid Brownell2008-07-21
| | | | | | | | | | | | | | | | | | | Building on the previous patches which took code from this driver and pakaged it in more-reusable network "function" components, this patch gets rid of the original code and uses those components instead. As seen with the other gadget driver conversions, the resulting code is much easier to understand and (presumably) work with. In this case that's especially true, since the Ethernet gadget had grown to handle three (!) different Ethernet-over-USB protocols. This modularization should make it much easier to add a fourth option for the newish CDC "Ethernet Emulation Model" (or EEM). Lightly tested, primarily at full speed. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb gadget: new "CDC Composite" gadget driverDavid Brownell2008-07-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a simple example of a composite gadget, combining two Communications Class Device (CDC) functions: ECM and ACM. This provides a clear example of how the composite gadget framework is intended to work. It's surprising that MS-Windows (or at least, XP and previous) won't "just work" with something this simple... One /proc/bus/usb/devices listing looks like: T: Bus=03 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 46 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=02(comm.) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=0525 ProdID=a4aa Rev= 3.01 S: Manufacturer=Linux 2.6.26-rc6-pnut with net2280 S: Product=CDC Composite Gadget C:* #Ifs= 4 Cfg#= 1 Atr=c0 MxPwr= 2mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=06 Prot=00 Driver=cdc_ether E: Ad=83(I) Atr=03(Int.) MxPS= 16 Ivl=32ms I: If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_ether I:* If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_ether E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 2 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=02 Prot=01 Driver=cdc_acm E: Ad=86(I) Atr=03(Int.) MxPS= 8 Ivl=32ms I:* If#= 3 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_acm E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms Not all USB peripheral controller hardware can support this driver. All the highspeed-capable peripheral controllers with drivers now in the mainline kernel seem to support this, as does omap_udc. But many full speed controllers don't have enough endpoints, or (as with the PXA controllers) don't support altsettings. Lightly tested. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb ethernet gadget: split RNDIS functionDavid Brownell2008-07-21
| | | | | | | | | | | | This is a RNDIS function driver, extracted from the all-in-one Ethernet gadget driver. Lightly tested ... there seems to be a pre-existing problem when talking to Windows XP SP2, not quite sure what's up with that yet. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb ethernet gadget: split CDC Ethernet functionDavid Brownell2008-07-21
| | | | | | | | | | | | | This is a "CDC Ethernet" (ECM) function driver, extracted from the all-in-one Ethernet gadget driver. This is a good example of how to implement interface altsettings. In fact it's currently the only such example in the gadget stack, pending addition of OBEX support. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb ethernet gadget: split CDC Subset functionDavid Brownell2008-07-21
| | | | | | | | | This is a simple "CDC Subset" (and MCCI "SAFE") function driver, extracted from the all-in-one Ethernet gadget driver. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb ethernet gadget: split out network coreDavid Brownell2008-07-21
| | | | | | | | | | | | | | | | | | | | | Abstract the peripheral side Ethernet-over-USB link layer code from the all-in-one Ethernet gadget driver into a component that can be called by various functions, so the various flavors can be split apart and selectively reused. A notable difference from the approach taken with the serial link layer code (beyond talking to NET not TTY) is that because of the initialization requirements, this only supports one network link. (And one set of Ethernet link addresses.) That is, each configuration may have only one instance of a network function. This doesn't change behavior; the current code has that same restriction. If you want multiple logical links, that can easily be done using network layer tools. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb gadget: RNDIS cleanupsDavid Brownell2008-07-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some cleanup to the RNDIS code: - Minor bugfix: rndis_unit() is supposed to put the link into the RNDIS_UNINITIALIZED state, which does not mean "unused". There's a separate method to stop using the link. (Bug doesn't affect anything right now because of how the code is used.) - Reduce coupling between RNDIS code and its user(s), in preparation for updates in that code: * Decouple RNDIS_RESPONSE_AVAILABLE notifications from net_device by passing just a void* handle. (Also, remove the unused return value of the notification callback.) * When it needs a copy of net_device stats, just ask for it - Remove unused/untested code backing various never-used OIDs: * RNDIS_PM, RNDIS_WAKEUP ... "should" get implemented, but the relevant docs were unclear, ambguous, and incomplete. Someone with access to the Hidden Gospels (maybe in the EU?) might be able to figure out what this should do. * RNDIS_OPTIONAL_STATS ... as the name suggests, optional. Never implemented in part because not all the semantics were clear. * OID_GEN_RNDIS_CONFIG_PARAMETER, which has been #if 0 forever. - A few small whitespace fixes Plus switch the VERBOSE symbol over to the newer VERBOSE_DEBUG style. There should be no functional changes because of this patch; it's a net source code shrink (because of the dead/unused code removal) and a small object code shrink (a couple hundred bytes on ARMv5). Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb gadget serial: use composite gadget frameworkDavid Brownell2008-07-21
| | | | | | | | | | This switches the serial gadget over to using the new "function" versions of the serial port interfacing code. The remaining code in the main source file is quite small... Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb gadget serial: split out generic serial functionDavid Brownell2008-07-21
| | | | | | | | | Split out the generic serial support into a "function driver". This closely mimics the ACM support, but with a MUCH simpler control model. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb gadget serial: split out CDC ACM functionDavid Brownell2008-07-21
| | | | | | | | | | | | | | | | | | | | | | | | Split out CDC ACM parts of "gadget serial" to a "function driver". Some key structural differences from the previous ACM support, shared with with the generic serial function (next patch): - As a function driver, it can be combined with other functions. One gadget configuration could offer both serial and network links, as an example. - One serial port can be exposed in multiple configurations; the /dev/ttyGS0 node could be exposed regardless of which config the host selected. - One configuration can expose multiple serial ports, such as ttyGS0, ttyGS1, ttyGS2, and ttyGS3. This code should be a lot easier to understand than the previous all-in-one-big-file version of the driver. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb gadget zero: use composite gadget frameworkDavid Brownell2008-07-21
| | | | | | | | | | | | | | | | | | Update Gadget Zero to use the more modular versions of the loopback and source/sink configuration drivers which build on the new gadget framework code. The core code is a LOT simpler, and it should be much easier now to understand how the parts fit together. The conversion is an overall source shrink in terms of this gadget, since it uses more midlayer support. However, it's an overall increase in object size because there's less sharing between the two configurations (improves code clarity) and because the midlayer is a bit more functional than this driver actually needs. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb gadget zero: split out loopback configDavid Brownell2008-07-21
| | | | | | | | | | | This splits the gadget zero "loopback" configuration into a standalone "configuration driver", building on the composite gadget framework code. It doesn't yet pull the original code out of gadget zero or update how that driver is built. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb gadget zero: split out source/sink configDavid Brownell2008-07-21
| | | | | | | | | | | | | | | | This splits the gadget zero "source/sink" configuration into a standalone "configuration driver", building on the composite gadget framework code. It doesn't yet pull the original code out of gadget zero or update how that driver is built. Neither this, nor its sibling "loopback" configuration, is a function driver that can be combined with other functions. (The host "usbtest" driver wouldn't know how to deal with that!) However the code becomes simpler because of this conversion, so it's a net win. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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