- 28 Apr, 2016 13 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usbGreg Kroah-Hartman authored
Felipe writes: usb: changes for v4.7 merge window Here's the big USB Gadget pull request. This time not as large as usual with only 57 non-merge commits. The most important part here is, again, all the work on dwc3. This time around we're treating all endpoints (except for control endpoint) exactly the same. They all have the same amount of TRBs on the ring, they all treat the ring as an actual ring with a link TRB pointing to the head, etc. We're also helping the host side burst (on SuperSpeed GEN1 or GEN2 at least) for as long as possible until the endpoint returns NRDY. Other than this big TRB ring rework on dwc3, we also have a dwc3-omap DMA initialization fix, some extra debugfs files to aid in some odd debug sessions and a complete removal of our FIFO resizing logic. We have a new quirk for some dwc3 P3 quirk in some implementations. The rest is basically non-critical fixes and the usual cleanups.
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Felipe Balbi authored
Now that we calculate DCFG.NUMP, we can disable dwc3's automatic calculation so we maximize our chances of very high throughtput through the use of bursts. Signed-off-by:Felipe Balbi <felipe.balbi@linux.intel.com>
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Felipe Balbi authored
NumP field of DCFG register is used on NumP field of ACK TP header and it tells the host how many packets an endpoint can receive before waiting for synchronization. Documentation says it should be set to anything <=bMaxBurst. Interestingly, however, this setting is not per-endpoint how it should be (different endpoints could have different burst sizes), but things seem to work okay right now. Signed-off-by: -
John Youn authored
Cleanup in probe if we fail to get dr_mode. Signed-off-by:
John Youn <johnyoun@synopsys.com> Signed-off-by:
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Sevak Arakelyan authored
In case of DDMA mode we don't need to get an SOF interrupt so disable the unmasking of SOF interrupt in DDMA mode. Signed-off-by:
Sevak Arakelyan <sevaka@synopsys.com> Signed-off-by:
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Vardan Mikayelyan authored
This is safety change added while doing slub debugging. Affected functions: dwc2_hcd_qtd_unlink_and_free() _dwc2_hcd_urb_enqueue() Signed-off-by:
Vardan Mikayelyan <mvardan@synopsys.com> Signed-off-by:
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Vardan Mikayelyan authored
In host slave mode, the core asserts the rxready, txfifoempty interrupts that get serviced in the gadget irq handler. Prevent servicing of these when not in the gadget mode of operation. Signed-off-by:
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Vahram Aharonyan authored
Replaced the WARN_ON with a check and return of -EINVAL in the dwc2_hsotg_ep_enable function if ep0 is passed in. Signed-off-by:
Vahram Aharonyan <vahrama@synopsys.com> Signed-off-by:
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Konrad Leszczynski authored
if Start Transfer command fails, let's try a little harder to figure out why the command failed and give slightly better return codes. This will be usefulf or isochronous endpoints, at least, which could decide to retry a given request. Signed-off-by:
Konrad Leszczynski <konrad.leszczynski@intel.com> Signed-off-by:
Rafal Redzimski <rafal.f.redzimski@intel.com> Signed-off-by:
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Felipe Balbi authored
If a gadget driver loaded to a Superspeed-capable peripheral controller, using a Superspeed cable, doesn't provide Superspeed descriptors, we will get a NULL pointer dereference. In order to avoid that situation, we will try to find any valid descriptors we can. If no set of descriptors is passed in, then we'll let that gadget oops anyhow. Signed-off-by: -
Heikki Krogerus authored
For convenience, passing the dwc3 platform device as a parameter to dwc3_pci_quirks() function. Signed-off-by:
Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by:
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Heikki Krogerus authored
Setting the ACPI companion before calling dwc3_pci_quirks. The ACPI companion will be set unconditionally as the primary fwnode, overriding any previously set primary fwnode. This will make sure that any build-in properties added to the platform device will be added as the secondary fwnode in cases where also ACPI companion exists. Signed-off-by:
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Fei Yang authored
In case host sends us an unsupported test mode, we *must* stall this request. This will tell the host that the selector is invalid and we won't put the controller in unsupported test modes which could have undetermined side-effects. Signed-off-by:
Fei Yang <fei.yang@intel.com> Signed-off-by:
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- 26 Apr, 2016 27 commits
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Colin Ian King authored
whc_init already calls whc_clean_up if an error occurs during the initialization, so calling it again if whc_init fails at the end of wch_probe will cause double free errors. Fix this by bailing out on an whc_init failure to a new label that avoids doing the duplicated whc_clean_up. Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Rafał Miłecki authored
Thanks to switching to devm_gpiod_get: 1) We don't have to pass fwnode pointer 2) We can request initial GPIO value at getting call This was successfully tested on Netgear R6250 (BCM4708). Signed-off-by:
Rafał Miłecki <zajec5@gmail.com> Signed-off-by:
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Felipe Balbi authored
Now that there are no more users for xhci_plat_type_is(), we can safely remove it. Acked-by:
Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by:
Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by:
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Felipe Balbi authored
Now that the code has been refactored enough, switching over to using ->plat_start() and ->init_quirk() becomes a very simple patch. After this patch, there are no further uses for xhci_plat_type_is() which will be removed in a follow-up patch. Acked-by:
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Felipe Balbi authored
Just like RCAR's init_quirk() we want mvebu's to use struct usb_hcd * as argument too. This is another step towards removing xhci_plat_type_is(). Acked-by:
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Felipe Balbi authored
xhci_plat_setup() is the rightful place for xhci_mvebu_mbus_init_quirk(), so let's move it there in order to make it simpler to get rid of xhci_plat_type_is() later on. Acked-by:
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Felipe Balbi authored
these two methods will be used to hide platform-specific details so we can get rid of xhci_plat_type_is() in a later patch. Acked-by:
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Felipe Balbi authored
We're preparing to remove xhci_plat_type_is() in favor of a better approach where we define function pointers ahead of time. This will let us make assumptions about which platforms we're running on and which platform-specific functions we should call. Acked-by:
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Alexandr Ivanov authored
Move duplicate code from xhci_queue_intr_tx() and xhci_queue_isoc_tx_prepare() to the check_interval() function. Signed-off-by:
Alexandr Ivanov <alexandr.sky@gmail.com> Signed-off-by:
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Alexandr Ivanov authored
Remove duplicate function xhci_urb_to_transfer_ring from xhci.c. We have same function in xhci-ring.c. Signed-off-by:
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Alexandr Ivanov authored
In drivers/usb/host/xhci-ring.c there are two functions (xhci_queue_bulk_tx and queue_bulk_sg_tx) that are very similar, so a lot of code duplication. This patch merges these functions into to one xhci_queue_bulk_tx. Also counting the needed TRBs is merged and refactored. Signed-off-by:
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David Mosberger authored
Restructure usb_sg_cancel() so we don't have to disable interrupts while cancelling the URBs. Suggested-by:
Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
David Mosberger <davidm@egauge.net> Signed-off-by:
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David Mosberger authored
usb_submit_urb() may take quite long to execute. For example, a single sg list may have 30 or more entries, possibly leading to that many calls to DMA-map pages. This can cause interrupt latency of several hundred micro-seconds. Avoid the problem by releasing the io->lock spinlock and re-enabling interrupts before calling usb_submit_urb(). This opens races with usb_sg_cancel() and sg_complete(). Handle those races by using usb_block_urb() to stop URBs from being submitted after usb_sg_cancel() or sg_complete() with error. Note that usb_unlink_urb() is guaranteed to return -ENODEV if !io->urbs[i]->dev and since the -ENODEV case is already handled, we don't have to check for !io->urbs[i]->dev explicitly. Before this change, reading 512MB from an ext3 filesystem on a USB memory stick showed a throughput of 12 MB/s with about 500 missed deadlines. With this change, reading the same file gave the same throughput but only one or two missed deadlines. Signed-off-by:
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Igor Kotrasinski authored
Add the driver to Kconfig to make it visible in menuconfig and allow people to compile it. This commit is a result of cooperation between Samsung R&D Institute Poland and Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by:Igor Kotrasinski <i.kotrasinsk@samsung.com> Signed-off-by:
Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by:
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Igor Kotrasinski authored
Modify userspace tools to allow exporting and connecting to vudc. This commit is a result of cooperation between Samsung R&D Institute Poland and Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by:
Ewelina Kosmider <3w3lfin@gmail.com> [Various bug fixes and improvements] Signed-off-by:
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Krzysztof Opasiak authored
Adds an equivalent of usbip_host_driver for the vudc. Most of the code is already shared, but this adds some vudc specific code for getting information about devices. Based on code created in cooperation with Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by:
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Krzysztof Opasiak authored
Extract the code from current stub driver backend and a common interface for both stub driver and vudc. This allows to share most of the usbipd code for both of them. Based on code created in cooperation with Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: -
Igor Kotrasinski authored
Add sysfs attributes to allow controlling vudc from usbip tools. dev_desc - device descriptor of current gadget. This is required to be consisten with current usbip protocol and allow to list exportable devices on given machine. usbip_sockfd - allows to pass socket to kernel to start usbip transfer. usbip_status - currnent status of device This commit is a result of cooperation between Samsung R&D Institute Poland and Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by:Karol Kosik <karo9@interia.eu> [Various bug fixes, improvements and commit msg update] Signed-off-by:
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Igor Kotrasinski authored
Add endpoints definitions and ops for both endpoints and gadget. Add also a suitable platform driver and functions for handling usbip events. This commit is a result of cooperation between Samsung R&D Institute Poland and Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: -
Igor Kotrasinski authored
This file contains functions for returning requests to the client. It also has functions that add requests completed in vudc_rx and vudc_transfer to the return queue. This commit is a result of cooperation between Samsung R&D Institute Poland and Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: -
Igor Kotrasinski authored
This file contains a function that simulates USB traffic, based on the one in dummy_hcd. Is also handles udc-directed control requests, and contains functions for setting up and controlling a timer for the emulation. This commit is a result of cooperation between Samsung R&D Institute Poland and Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: -
Igor Kotrasinski authored
Add functions which allows to receive urbs from the client. It receives traffic in a loop in a separate thread. This commit is a result of cooperation between Samsung R&D Institute Poland and Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: -
Igor Kotrasinski authored
Add main vudc module file. This allows us to register suitable platform device and driver (just like dummy_hcd does). Currently number of vudc instances is determined using module parameter but whole infrastructure is suitable to make vudc creation dynamic (for example via configfs). This commit is a result of cooperation between Samsung R&D Institute Poland and Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: -
Igor Kotrasinski authored
Add constants for VUDC events in usbip_common.h and make use of them in usbip_common.c. This commit is a result of cooperation between Samsung R&D Institute Poland and Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: -
Igor Kotrasinski authored
Add header with definitions needed by vudc driver. This commit is a result of cooperation between Samsung R&D Institute Poland and Open Operating Systems Student Society at University of Warsaw (O2S3@UW) consisting of: Igor Kotrasinski <ikotrasinsk@gmail.com> Karol Kosik <karo9@interia.eu> Ewelina Kosmider <3w3lfin@gmail.com> Dawid Lazarczyk <lazarczyk.dawid@gmail.com> Piotr Szulc <ps347277@students.mimuw.edu.pl> Tutor and project owner: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: -
Felipe Balbi authored
No functional changes here, just making sure our storage driver uses a consistent multi-line comment style. Signed-off-by:
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Felipe Balbi authored
USB3 devices, because they are much newer, have much less chance of having issues with larger transfers. We still keep a limit because anything above 2048 sectors really rendered negligible speed improvements, so we will simply ignore that. Transferring 1MiB should already give us pretty good performance. Signed-off-by:
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