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2012-09-04usbnet: fix skb traversing races during unlink(v2)Ming Lei
Commit 4231d47e6fe69f061f96c98c30eaf9fb4c14b96d(net/usbnet: avoid recursive locking in usbnet_stop()) fixes the recursive locking problem by releasing the skb queue lock before unlink, but may cause skb traversing races: - after URB is unlinked and the queue lock is released, the refered skb and skb->next may be moved to done queue, even be released - in skb_queue_walk_safe, the next skb is still obtained by next pointer of the last skb - so maybe trigger oops or other problems This patch extends the usage of entry->state to describe 'start_unlink' state, so always holding the queue(rx/tx) lock to change the state if the referd skb is in rx or tx queue because we need to know if the refered urb has been started unlinking in unlink_urbs. The other part of this patch is based on Huajun's patch: always traverse from head of the tx/rx queue to get skb which is to be unlinked but not been started unlinking. Signed-off-by: Huajun Li <huajun.li.lee@gmail.com> Signed-off-by: Ming Lei <tom.leiming@gmail.com> Cc: Oliver Neukum <oneukum@suse.de> Cc: stable@kernel.org Signed-off-by: David S. Miller <davem@davemloft.net> (cherry picked from commit 5b6e9bcdeb65634b4ad604eb4536404bbfc62cfa) Bug 1040642 Change-Id: I1a8c248016529bebf71d540738ad4726cf3f59b7 Signed-off-by: Steve Lin <stlin@nvidia.com> Reviewed-on: http://git-master/r/128693 GVS: Gerrit_Virtual_Submit
2012-08-16USB: gadget: f_accessory: Add support for HID input devicesRakesh Bodla
Bug 1026047 Signed-off-by: Mike Lockwood <lockwood@google.com> (cherry picked from commit 7a3d01af4f04950a86a18f5a439f1802d8093650) Conflicts: drivers/usb/gadget/f_accessory.c Change-Id: I30bc02a1bcf636967d56370db83578f49f0e7514 Signed-off-by: Rakesh Bodla <rbodla@nvidia.com> Reviewed-on: http://git-master/r/123342 Reviewed-by: Venkat Moganty <vmoganty@nvidia.com>
2012-08-16Add ACCESSORY_SET_AUDIO_MODE control request and ioctlMike Lockwood
The control request will be used by the host to enable/disable USB audio and the ioctl will be used by userspace to read the audio mode Bug 1026047 Signed-off-by: Mike Lockwood <lockwood@google.com> (cherry picked from commit 3e1ff6142761eef148c667e540381d1fbc437d4f) Signed-off-by: Rakesh Bodla <rbodla@nvidia.com> Change-Id: I5f449de230ca8f44e2dae30a0f87772310b68f20 Reviewed-on: http://git-master/r/123341 Reviewed-by: Venkat Moganty <vmoganty@nvidia.com>
2012-01-30usbnet: Fix 'FLAG_RMNET' and 'FLAG_MULTI_PACKET' overlap.Raj Jayaraman
Bug 901367 Change-Id: I73fe7c19f5f50530f7d0a73d0a6b9ba2092c71d2 Reviewed-on: http://git-master/r/76664 Reviewed-by: Steve Lin <stlin@nvidia.com> Signed-off-by: Raj Jayaraman <rjayaraman@nvidia.com> Signed-off-by: Varun Wadekar <vwadekar@nvidia.com> Change-Id: I309eb6178a7f39714f9e5f963faf011a1a79b079 Reviewed-on: http://git-master/r/77309 Reviewed-by: Automatic_Commit_Validation_User
2012-01-20cdc_ncm: Modify NCM network interface.BH Hsieh
Adding FLAG_RMNET to change ncm net device name for Ericsson modem. Bug 901367 Change-Id: I4a029cc10a02176035319ed4ac1e7b9af349cbd1 Reviewed-on: http://git-master/r/74912 Reviewed-by: WK Tsai <wtsai@nvidia.com> Reviewed-by: Steve Lin <stlin@nvidia.com> Signed-off-by: BH Hsieh <bhsieh@nvidia.com> Signed-off-by: Varun Wadekar <vwadekar@nvidia.com> Reviewed-on: http://git-master/r/76459 Reviewed-by: Automatic_Commit_Validation_User
2012-01-16Merge branch 'linux-3.1.y' into android-tegra-nv-3.1Varun Wadekar
Linux 3.1.9 Conflicts: Makefile Change-Id: I22227ab33ba7ddaba8e6fe049393c58a83d73648 Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2012-01-12usb: ch9: fix up MaxStreams helperFelipe Balbi
commit 18b7ede5f7ee2092aedcb578d3ac30bd5d4fc23c upstream. [ removed the dwc3 portion of the patch as it didn't apply to older kernels - gregkh] According to USB 3.0 Specification Table 9-22, if bmAttributes [4:0] are set to zero, it means "no streams supported", but the way this helper was defined on Linux, we will *always* have one stream which might cause several problems. For example on DWC3, we would tell the controller endpoint has streams enabled and yet start transfers with Stream ID set to 0, which would goof up the host side. While doing that, convert the macro to an inline function due to the different checks we now need. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-30usb: otg_id: add suspend/resume interfaceDima Zavin
It is possible that while one driver has already suspended, another driver calls otg_id_notify() because it has not yet been suspended. It would then be possible for the suspended driver's detect callback to be called. This is undesirable. Introduce new otg_id_suspend/otg_id_resume functions that keep a suspended count, and if a notification happens while someone is suspended, that notification is deferred until all the drivers are resumed. If the notification happens before the last driver is suspended, that suspend will be aborted and once the final driver resumes through otg_id_resume, the notification will be delivered. Change-Id: I32fd32bec65e366e5f97a25c15255d94773b85b3 Signed-off-by: Dima Zavin <dima@android.com>
2011-11-30usb: otg: add proxy_wait handler to otg_idErik Gilling
Some otg_id handlers can detect what's connected but can't detect a change. This allows that handler to pass off the waiting for ID change to a proxy. Change-Id: Ib38b750c3da4bffc35e37b620ecee37c5d64d31f Signed-off-by: Erik Gilling <konkers@android.com>
2011-11-30USB: gadget: f_accessory: Add ioctl to detect USB accessory attached at bootMike Lockwood
Signed-off-by: Mike Lockwood <lockwood@android.com>
2011-11-30USB: gadget: f_mtp: Add support for sending MTP header during file transferMike Lockwood
MTP_SEND_FILE_WITH_HEADER ioctl allows sending a file with the 12 byte header prepended at the beginning. This is to allow MTP to use a single packet for the data phase instead of two. Signed-off-by: Mike Lockwood <lockwood@android.com>
2011-11-30USB: otg: add otg id notifier utiltiiesColin Cross
Add a otg_id notifier to allow multiple drivers to cooperate to determine the type of cable connected to a USB connector without requiring direct calls between the drivers. Change-Id: Ic5675f1a89daf85b17336765de24e4bdb6df6348 Signed-off-by: Colin Cross <ccross@android.com>
2011-11-30USB: gadget: f_mtp: Add PTP variant of MTP USB functionMike Lockwood
This is the same as MTP but with PTP interface descriptor. Also removed obsolete ioctl for switching between MTP and PTP mode Signed-off-by: Mike Lockwood <lockwood@android.com>
2011-11-30usb: gadget: android: Update android gadget driverBenoit Goby
* Functions and the device descriptor are configured from user space: echo 0 > /sys/class/android_usb/android0/enable echo adb,acm > /sys/class/android_usb/android0/functions echo 2 > /sys/class/android_usb/android0/f_acm/instances echo 1 > /sys/class/android_usb/android0/enable * Driver does not require platform data anymore * Moved function initialization to android.c instead of each function file * Replaced switches by uevents Signed-off-by: Benoit Goby <benoit@android.com> Signed-off-by: Mike Lockwood <lockwood@android.com> Change-Id: If5ad9267c111ad0a442f0d87a0d31082dc5381b6
2011-11-30usb: gadget: composite: Add usb_remove_configBenoit Goby
This allows composite drivers to dynamically change their configuration. For example, a driver might remove a configuration and register a new one with a different set of functions. User should prevent the host from enumerating the device while changing the configuration: usb_gadget_disconnect(cdev->gadget); usb_remove_config(cdev, old_config); usb_add_config(cdev, new_config, new_conf_bind); usb_gadget_connect(cdev->gadget); Change-Id: Icbfb4ce41685fde9bf63d5d58fca1ad242aa69f9 Signed-off-by: Benoit Goby <benoit@android.com>
2011-11-30USB: gadget: f_accessory: New gadget driver for android USB accesoriesMike Lockwood
Signed-off-by: Mike Lockwood <lockwood@android.com> USB: gadget: f_accessory: Misc improvements and cleanup: - Add URI string - Replace type string with a description string - Add a control call to retrieve accessory protocol version (currently 1) - Driver read() and write() calls now fail after USB disconnect until driver file is closed and reopened. - Misc cleanup work Signed-off-by: Mike Lockwood <lockwood@android.com> USB: gadget: f_accessory: Clear accessory strings when USB is disconnected Signed-off-by: Mike Lockwood <lockwood@android.com> USB: gadget: f_accessory: Clear previous strings on ACCESSORY_GET_PROTOCOL Clearing strings on disconnect does not work since we may receive a disconnect on some devices when transitioning into accessory mode. We require an accessory to send ACCESSORY_GET_PROTOCOL before sending any strings, so any strings from a previous session will be cleared. Signed-off-by: Mike Lockwood <lockwood@android.com> USB: gadget: f_accessory: Clear disconnected flag when driver file is opened Fixes a race condition that can occur when entering accessory mode. Signed-off-by: Mike Lockwood <lockwood@android.com> USB: gadget: f_accessory: Add string for accessory's unique serial number Signed-off-by: Mike Lockwood <lockwood@android.com> USB: gadget: f_accessory: Set bNumEndpoints to correct value of 2 Change-Id: I24f4e36f196d45436e0573301500c3b93215953d Signed-off-by: Mike Lockwood <lockwood@android.com>
2011-11-30USB: gadget: android: Support switching vendor ID when configuration changesMike Lockwood
Based on the list of enabled USB functions, we can now switch the vendor ID as well as the product ID. Signed-off-by: Mike Lockwood <lockwood@android.com>
2011-11-30USB: gadget: composite: Use separate switches for connected and config stateMike Lockwood
Also remove disconnect debouncing, which didn't actually work on some platforms Signed-off-by: Mike Lockwood <lockwood@android.com>
2011-11-30usb: gadget: Multiple ACM gadget instancesJohn Michelau
- Added multiple ACM instance support in Android gadget - Fixed multiple instance naming issue in ACM function - Increased max instances from 4 to 8 Change-Id: I65f1b0be94da859bab7ec0ad7cd804b896c7c4c5 Signed-off-by: John Michelau <john.michelau@motorola.com>
2011-11-30USB: gadget: f_mtp: Support for file transfer length greater than 4 gigabytesMike Lockwood
For backward compatibility with PTP, MTP is limited to a 32-bit file size. When transferring files greater than 4 gig, MTP uses 0xFFFFFFFF as the file size and the receiver reads until it receives a short packet. Expanded size of mtp_file_range.length to 64 bits and added support for writing zero length packets. Signed-off-by: Mike Lockwood <lockwood@android.com>
2011-11-30USB: gadget: f_mtp: Add ioctl for sending events via the interrupt endpointMike Lockwood
Signed-off-by: Mike Lockwood <lockwood@android.com>
2011-11-30USB: composite: Add usb_composite_force_reset utility to force enumerationMike Lockwood
Use this rather than calling usb_gadget_disconnect and usb_gadget_connect directly to avoid sending USB disconnect events to userspace when resetting the bus. Signed-off-by: Mike Lockwood <lockwood@android.com>
2011-11-30USB: gadget: android: Remove unused function android_usb_set_connected()Mike Lockwood
Signed-off-by: Mike Lockwood <lockwood@android.com>
2011-11-30USB: gadget: composite: Move switch_set_state calls to a work queueMike Lockwood
Signed-off-by: Mike Lockwood <lockwood@android.com>
2011-11-30USB: gadget: f_mtp: USB gadget function driver for MTP and PTP device support.Mike Lockwood
Signed-off-by: Mike Lockwood <lockwood@android.com>
2011-11-30USB: gadget: composite: Add userspace notifications for USB state changesMike Lockwood
Add switch to notify current USB configuration. This can be used to detect USB connect and disconnect events. Broadcast a change via the usb_composite class when a USB function is enabled or disabled. Rename usb_function.hidden to usb_function.disabled. Signed-off-by: Mike Lockwood <lockwood@android.com>
2011-11-30USB: gadget: f_rndis: Add platform data for RNDIS vendor ID and MAC address.Mike Lockwood
This fixes a kernel panic in rndis.c when receiving the OID_GEN_VENDOR_DESCRIPTION command. Signed-off-by: Mike Lockwood <lockwood@android.com>
2011-11-30USB: composite: Add class driver for enabling and disabling USB functions.Mike Lockwood
Signed-off-by: Mike Lockwood <lockwood@android.com>
2011-11-30USB: gadget: android: android USB gadget improvements:Krishna, Vamsi
USB: android gadget: add remote wakeup attribute to android function Add remote wakeup attribute to configuration descriptor of android function to advertise remote wakeup capability to host Acked-by: Allam, Suresh Reddy <sallam@qualcomm.com> Signed-off-by: Mike Lockwood <lockwood@android.com> USB: gadget: android: Allow functions to handle setup requests. Signed-off-by: Mike Lockwood <lockwood@android.com> Support for specifying the list of USB functions from platform data. The main android.c gadget driver no longer has hard coded references to the mass_storage and adb functions. Support for computing the product ID based on tables in platform data and the currently enabled functions. Moved the adb enable/disable logic from android.c to f_adb.c. Change-Id: I6259d3fb1473ed973f700e55d17744956f3527bb Signed-off-by: Mike Lockwood <lockwood@android.com>
2011-11-30USB: composite: Add flag to usb_function to hide its interface during ↵Mike Lockwood
enumeration Change-Id: Ie999b5190e3e2b6fd23015b8e796cdd178829929 Signed-off-by: Mike Lockwood <lockwood@android.com>
2011-11-30android_usb: Composite USB gadget driver for android.Mike Lockwood
Change-Id: I4101540916b73a5f4e48684727ff782f98b969c7 Signed-off-by: Mike Lockwood <lockwood@android.com> USB: android gadget: add remote wakeup attribute to android function Add remote wakeup attribute to configuration descriptor of android function to advertise remote wakeup capability to host Acked-by: Allam, Suresh Reddy <sallam@qualcomm.com> Signed-off-by: Mike Lockwood <lockwood@android.com> usb gadget: link fixes for android composite gadget Signed-off-by: Mike Lockwood <lockwood@android.com> usb gadget: Fix null pointer errors in android composite driver Signed-off-by: Mike Lockwood <lockwood@android.com> usb: gadget: android: Allow usb charging to draw up to 500mA instead of 250. Signed-off-by: Rebecca Schultz Zavin <rebecca@android.com> usb gadget: android: Add helper function for usb_gadget_connect and disconnect. Signed-off-by: Mike Lockwood <lockwood@android.com> drivers: usb: gadget: call switch_dev_unregister in mass storage unbind callback This fixes a problem unloading the android gadget driver when built as a module Signed-off-by: Mike Lockwood <lockwood@android.com> usb: gadget: android: Add dependency on switch driver. Signed-off-by: Mike Lockwood <lockwood@android.com> USB: gadget: android: Fix USB WHQL Certification Issues Submitted on behalf of RaviKumar Vembu <ravi.v@motorola.com> Signed-off-by: Jared Suttles <jared.suttles@motorola.com> Signed-off-by: Mike Lockwood <lockwood@android.com> drivers: usb: gadget: Add "usb_mass_storage" platform driver. This will be used for configuring vendor, product and release from board file. Submitted on behalf of RaviKumar Vembu <ravi.v@motorola.com> Signed-off-by: Jared Suttles <jared.suttles@motorola.com> Signed-off-by: Mike Lockwood <lockwood@android.com> drivers: usb: gadget: Use usb_mass_storage platform device as parent for lun If a platform device is specified for the f_mass_storage function, use it as the parent driver for the lun files in sysfs. This allows a platform independent file path for controlling USB mass storage from user space. Signed-off-by: Mike Lockwood <lockwood@android.com> drivers: usb: gadget: Add platform data struct for usb_mass_storage device Signed-off-by: Mike Lockwood <lockwood@android.com> usb: gadget: mass_storage: Fix Mass Storage Panic during PC reboot Submitted on behalf of RaviKumar Vembu <ravi.v@motorola.com> Signed-off-by: Jared Suttles <jared.suttles@motorola.com> Signed-off-by: Mike Lockwood <lockwood@android.com> usb: gadget: f_mass_storage: Handle setup request correctly Signed-off-by: Mike Lockwood <lockwood@android.com> usb: gadget: f_mass_storage: Clean up wakelocks on error paths Signed-off-by: Rebecca Schultz Zavin <rebecca@android.com> Signed-off-by: Mike Lockwood <lockwood@android.com>
2011-11-11USB: fix ehci alignment errorHarro Haan
commit 276532ba9666b36974cbe16f303fc8be99c9da17 upstream. The Kirkwood gave an unaligned memory access error on line 742 of drivers/usb/host/echi-hcd.c: "ehci->last_periodic_enable = ktime_get_real();" Signed-off-by: Harro Haan <hrhaan@gmail.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-07-08Merge branch 'for-next' of ↵Greg Kroah-Hartman
master.kernel.org:/pub/scm/linux/kernel/git/balbi/usb into usb-next * 'for-next' of master.kernel.org:/pub/scm/linux/kernel/git/balbi/usb: usb: gadget: m66592-udc: add pullup function usb: gadget: m66592-udc: add function for external controller usb: gadget: r8a66597-udc: add pullup function usb: gadget: zero: add superspeed support usb: gadget: add SS descriptors to Ethernet gadget usb: gadget: r8a66597-udc: add support for TEST_MODE usb: gadget: m66592-udc: add support for TEST_MODE usb: gadget: r8a66597-udc: Make BUSWAIT configurable through platform data usb: gadget: r8a66597-udc: fix cannot connect after rmmod gadget driver usb: update email address in r8a66597-udc and m66592-udc usb: musb: restore INDEX register in resume path usb: gadget: fix up depencies usb: gadget: fusb300_udc: fix compile warnings usb: gadget: ci13xx_udc.c: fix compile warning usb: gadget: net2272: fix compile warnings usb: gadget: langwell_udc: fix compile warnings usb: gadget: fusb300_udc: drop dead code
2011-07-09usb: gadget: m66592-udc: add function for external controllerYoshihiro Shimoda
M66592 has the pin of WR0 and WR1. So, if one write-pin of CPU connects to the pins, we have to change the setting of FIFOSEL register in the controller. If we don't change the setting, the controller cannot send the data of odd length. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-07-08usb: update email address in ohci-sh and r8a66597-hcdYoshihiro Shimoda
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-07-08usb: r8a66597-hcd: add function for external controllerYoshihiro Shimoda
R8A66597 has the pin of WR0 and WR1. So, if one write-pin of CPU connects to the pins, we have to change the setting of FIFOSEL register in the controller. If we don't change the setting, the controller cannot send the data of odd length. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-07-08usb: gadget: r8a66597-udc: Make BUSWAIT configurable through platform dataYoshihiro Shimoda
BUSWAIT is a 4-bit-wide value that controls the number of access waits from the CPU to on-chip USB module. b'0000 inserts 0 wait (2 access cycles) and b'1111 inserts 15 waits (17 access cycles, hardware initial value), respectively. BUSWAIT value depends on peripheral clock frequency supplied to on-chip of each CPU, hence should be configurable through platform data. Note that this patch assumes that b'0000 (0 wait, 2 access cycles) is rerely used and considered as invalid. If valid 'buswait' data is not provided by platform, initial b'1111 (15 waits, 17 access cycles) will be applied as a safe default. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2011-07-01usb: gadget: udc-core: add "new-style" registration interfaceSebastian Andrzej Siewior
udc_start() should only trigger the internal state machine and make minimal house keeping. Before that call udc-core calls the bind() callback and after the callback the pullup(). udc_stop() is simillar, udc-core calls pullup(), unbind() and finally udc_stop(). Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-07-01usb: gadget: add missing #include'sSergei Shtylyov
When #include'd alone, <linux/usb/gadget.h> causes a lot of compilation errors and warnings -- all because it relies on the including code to bring in the necessary #include's instead of doing this itself. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-07-01usb: gadget: add SuperSpeed support to the Gadget FrameworkTatyana Brokhman
SuperSpeed USB has defined a new descriptor, called the Binary Device Object Store (BOS) Descriptor. It has also changed a bit the definition of SET_FEATURE and GET_STATUS requests to add USB3-specific details. This patch implements both changes to the Composite Gadget Framework. [ balbi@ti.com : slight changes to commit log fixed a compile error on ARM ] Signed-off-by: Tatyana Brokhman <tlinder@codeaurora.org> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-07-01usb: gadget: add max_speed to usb_composite_driverTatyana Brokhman
This field is used by the Gadget drivers to specify the maximum speed they support, meaning: the maximum speed they can provide descriptors for. The driver speed will be set in consideration of this value. [ balbi@ti.com : dropped the ifdeffery ] Signed-off-by: Tatyana Brokhman <tlinder@codeaurora.org> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-06-28usb: gadget: add streams support to the gadget frameworkTatyana Brokhman
This patch defines necessary fields to support streaming for USB3.0. It implements a new function, called usb_ep_autoconfig_ss(), to be used instead of the existing usb_ep_autoconfig() when working in SuperSpeed mode and there is a need to search for an endpoint according to the number of required streams. [ balbi@ti.com : slight changes to commit log ] Signed-off-by: Maya Erez <merez@codeaurora.org> Signed-off-by: Tatyana Brokhman <tlinder@codeaurora.org> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-06-28usb: gadget: use config_ep_by_speed() instead of ep_choose()Tatyana Brokhman
Remove obsolete functions: 1. ep_choose() 2. usb_find_endpoint() Signed-off-by: Tatyana Brokhman <tlinder@codeaurora.org> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-06-28usb: gadget: configure endpoint according to gadget speedTatyana Brokhman
Add config_ep_by_speed() to configure the endpoint according to the gadget speed. Using this function will spare the FDs from handling the endpoint chosen descriptor. Signed-off-by: Tatyana Brokhman <tlinder@codeaurora.org> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-06-28usb: gadget: add usb_endpoint_descriptor to struct usb_epTatyana Brokhman
Change usb_ep_enable() prototype to use endpoint descriptor from usb_ep. This optimization spares the FDs from saving the endpoint chosen descriptor. This optimization is not full though. To fully exploit this change, one needs to update all the UDCs as well since in the current implementation each of them saves the endpoint descriptor in it's internal (and extended) endpoint structure. Signed-off-by: Tatyana Brokhman <tlinder@codeaurora.org> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-06-28usb: gadget: introduce UDC ClassFelipe Balbi
this class will be used to abstract away several of the duplicated operations scattered among the USB gadget controller drivers. Later, we can add an atomic notifier to tell interested drivers about what's happening with the controller. Notifications such as suspend, resume, enumerated, etc. will be useful, at a minimum, for implementing usb charger detection. As part of the converting process usb_gadget_probe_driver() is no longer part of each udc but pushed into the ->stap() callback. The same for his couterpart. The core is currently set explicit to 'n'. It will be changed to 'y' once all users are converted since it provides functions which clash with other drivers. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Acked-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-06-07usb: renesas_usbhs: add DMAEngine supportKuninori Morimoto
USB DMA was installed on "normal DMAC" when SH7724 or older SuperH, but the "USB-DMAC" was prepared on recent SuperH. These 2 DMAC have a little bit different behavior. This patch add DMAEngine code for "normal DMAC", but it is still using PIO fifo. The DMA fifo will be formally supported in the future. You can enable DMA fifo by local fixup usbhs_fifo_pio_push_handler -> usbhs_fifo_dma_push_handler usbhs_fifo_pio_pop_handler -> usbhs_fifo_dma_pop_handler on usbhsg_ep_enable. This DMAEngine was tested by g_file_storage on SH7724 Ecovec board Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-06-07USB: gadget.h depends on ch9.h so include ch9.h directlyMark Brown
The struct definitions are used. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-23Merge branch 'usb-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6 * 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (205 commits) USB: EHCI: Remove SPARC_LEON {read,write}_be definitions from ehci.h USB: UHCI: Support big endian GRUSBHC HC sparc: add {read,write}*_be routines USB: UHCI: Add support for big endian descriptors USB: UHCI: Use ACCESS_ONCE rather than using a full compiler barrier USB: UHCI: Add support for big endian mmio usb-storage: Correct adjust_quirks to include latest flags usb/isp1760: Fix possible unlink problems usb/isp1760: Move function isp1760_endpoint_disable() within file. USB: remove remaining usages of hcd->state from usbcore and fix regression usb: musb: ux500: add configuration and build options for ux500 dma usb: musb: ux500: add dma glue layer for ux500 usb: musb: ux500: add dma name for ux500 usb: musb: ux500: add ux500 specific code for gadget side usb: musb: fix compile error usb-storage: fix up the unusual_realtek device list USB: gadget: f_audio: Fix invalid dereference of initdata EHCI: don't rescan interrupt QHs needlessly OHCI: fix regression caused by nVidia shutdown workaround USB: OTG: msm: Free VCCCX regulator even if we can't set the voltage ...
2011-05-10usb: gadget: composite: Allow function drivers to pause control transfersRoger Quadros
Some USB function drivers (e.g. f_mass_storage.c) need to delay or defer the data/status stages of standard control requests like SET_CONFIGURATION or SET_INTERFACE till they are done with their bookkeeping and are actually ready for accepting new commands to their interface. They can now achieve this functionality by returning USB_GADGET_DELAYED_STATUS in their setup handlers (e.g. set_alt()). The composite framework will then defer completion of the control transfer by not completing the data/status stages. This ensures that the host does not send new packets to the interface till the function driver is ready to take them. When the function driver that requested for USB_GADGET_DELAYED_STATUS is done with its bookkeeping, it should signal the composite framework to continue with the data/status stages of the control transfer. It can do so by invoking the new API usb_composite_setup_continue(). This is where the control transfer's data/status stages are completed and host can initiate new transfers. The DELAYED_STATUS mechanism is currently only supported if the expected data phase is 0 bytes (i.e. w_length == 0). Since SET_CONFIGURATION and SET_INTERFACE are the only cases that will use this mechanism, this is not a limitation. Signed-off-by: Roger Quadros <roger.quadros@nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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