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  1. 29 7月, 2015 3 次提交
  3. 10 7月, 2015 1 次提交
    • E
      cdc_ncm: Add support for moving NDP to end of NCM frame · 4a0e3e98
      由 Enrico Mioso 提交于 
      NCM specs are not actually mandating a specific position in the frame for
the NDP (Network Datagram Pointer). However, some Huawei devices will
ignore our aggregates if it is not placed after the datagrams it points
to. Add support for doing just this, in a per-device configurable way.
While at it, update NCM subdrivers, disabling this functionality in all of
them, except in huawei_cdc_ncm where it is enabled instead.
We aren't making any distinction between different Huawei NCM devices,
based on what the vendor driver does. Standard NCM devices are left
unaffected: if they are compliant, they should be always usable, still
stay on the safe side.

This change has been tested and working with a Huawei E3131 device (which
works regardless of NDP position), a Huawei E3531 (also working both
ways) and an E3372 (which mandates NDP to be after indexed datagrams).

V1->V2:
- corrected wrong NDP acronym definition
- fixed possible NULL pointer dereference
- patch cleanup
V2->V3:
- Properly account for the NDP size when writing new packets to SKB
Signed-off-by: NEnrico Mioso <mrkiko.rs@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      4a0e3e98
  5. 31 5月, 2015 1 次提交
  7. 28 5月, 2015 1 次提交
    • A
      usb: phy: add static inline wrapper for devm_usb_get_phy_by_node · 307c858b
      由 Arnd Bergmann 提交于 
      The newly introduced devm_usb_get_phy_by_node function only has
an extern declaration, but no alternative for the case that
CONFIG_USB_PHY is disabled, which leads to a build error when
it is used anyway:

drivers/power/twl4030_charger.c: In function 'twl4030_bci_probe':
drivers/power/twl4030_charger.c:648:23: error: implicit declaration of function 'devm_usb_get_phy_by_node' [-Werror=implicit-function-declaration]
    bci->transceiver = devm_usb_get_phy_by_node(

This adds the wrapper in the same way that we have one for
all other usb-phy API functions.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Fixes: e842b84c ("usb: phy: Add interface to get phy give of device_node.")
Signed-off-by: NFelipe Balbi <balbi@ti.com>
      307c858b
  9. 26 5月, 2015 4 次提交
  11. 14 5月, 2015 1 次提交
    • H
      usb: add bus type for USB ULPI · 289fcff4
      由 Heikki Krogerus 提交于 
      UTMI+ Low Pin Interface (ULPI) is a commonly used PHY
interface for USB 2.0. The ULPI specification describes a
standard set of registers which the vendors can extend for
their specific needs. ULPI PHYs provide often functions
such as charger detection and ADP sensing and probing.

There are two major issues that the bus type is meant to
tackle:

Firstly, ULPI registers are accessed from the controller.
The bus provides convenient method for the controller
drivers to share that access with the actual PHY drivers.

Secondly, there are already platforms that assume ULPI PHYs
are runtime detected, such as many Intel Baytrail based
platforms. They do not provide any kind of hardware
description for the ULPI PHYs like separate ACPI device
object that could be used to enumerate a device from.
Signed-off-by: NHeikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: NDavid Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>
      289fcff4
  13. 29 4月, 2015 2 次提交
  15. 30 3月, 2015 2 次提交
  17. 26 3月, 2015 1 次提交
  19. 20 3月, 2015 2 次提交
  21. 19 3月, 2015 1 次提交
  23. 18 3月, 2015 2 次提交
  25. 14 3月, 2015 1 次提交
  27. 13 3月, 2015 1 次提交
    • Y
      usb: renesas_usbhs: add support for USB-DMAC · ab330cf3
      由 Yoshihiro Shimoda 提交于 
      Some Renesas SoCs have the USB-DMAC. It is able to terminate transfers
when a short packet is received, even if less bytes than the transfer
counter size have been received. Also, it is able to send a short
packet even if the packet size is not multiples of 8bytes.

Since the previous code has used the interruption of USBHS controller
when receiving packets even if this driver has used a dmac, a lot of
interruptions has happened. This patch will reduce such interruptions.

This patch allows to use the USB-DMAC on R-Car H2 and M2.
Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>
      ab330cf3
  29. 11 3月, 2015 2 次提交
    • M
      usb: gadget: Fix typo fond in Documentation/Docbook/gadget.xml · 06ed0de5
      由 Masanari Iida 提交于 
      This patch fix some spelling typo found in gadget.xml.
It is because this file is generated from comments in sources,
I had to fix comments in the source, instead of xml file itself.
Signed-off-by: NMasanari Iida <standby24x7@gmail.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>
      06ed0de5
    • A
      usb: gadget: composite: add req_match method to usb_function · f563d230
      由 Andrzej Pietrasiewicz 提交于 
      Non-standard requests can encode the actual interface number in a
non-standard way. For example composite_setup() assumes
that it is w_index && 0xFF, but the printer function encodes the interface
number in a context-dependet way (either w_index or w_index >> 8).
This can lead to such requests being directed to wrong functions.

This patch adds req_match() method to usb_function. Its purpose is to
verify that a given request can be handled by a given function.
If any function within a configuration provides the method and it returns
true, then it is assumed that the right function is found.

If a function uses req_match(), it should try as hard as possible to
determine if the request is meant for it.

If no functions in a configuration provide req_match or none of them
returns true, then fall back to the usual approach.
Signed-off-by: NAndrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>
      f563d230
  31. 01 3月, 2015 1 次提交
  33. 27 2月, 2015 1 次提交
  35. 01 2月, 2015 1 次提交
  37. 30 1月, 2015 1 次提交
  39. 25 1月, 2015 1 次提交
  41. 13 1月, 2015 2 次提交
  43. 10 1月, 2015 2 次提交
    • W
      USB: ehci-platform: Support ehci reset after resume quirk · 314b41b1
      由 Wu Liang feng 提交于 
      The Rockchip rk3288 EHCI controller doesn't properly detect
the case when a device is removed during suspend. Specifically,
when usb resume from suspend, the EHCI controller maintaining
the USB state (FLAG_CF is 1, Current Connect Status is 1),
but a USB device (like a USB camera on rk3288) may have been
disconnected actually.

Let's add a quirk to force ehci to go into the
usb_root_hub_lost_power() path and reset after resume.
This should generally reset the whole controller and all
ports and initialize everything cleanly again, and bring
the devices back up.

As part of this, rename the "hibernation" paramter of
ehci_resume() to force_reset since hibernation is simply
another case where we can't trust the autodetected status
and need to force a reset of devices.
Signed-off-by: NWu Liang feng <wulf@rock-chips.com>
Reviewed-by: NJulius Werner <jwerner@google.com>
Reviewed-by: NDoug Anderson <dianders@google.com>
Reviewed-by: NTomasz Figa <tfiga@google.com>
Reviewed-by: NPawel Osciak <posciak@google.com>
Reviewed-by: NSonny Rao <sonnyrao@google.com>
Acked-by: NAlan Stern <stern@rowland.harvard.edu>
Tested-by: NDoug Anderson <dianders@google.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      314b41b1
    • S
      usb: core: buffer: smallest buffer should start at ARCH_DMA_MINALIGN · 5efd2ea8
      由 Sebastian Andrzej Siewior 提交于 
      the following error pops up during "testusb -a -t 10"
| musb-hdrc musb-hdrc.1.auto: dma_pool_free buffer-128,	f134e000/be842000 (bad dma)
hcd_buffer_create() creates a few buffers, the smallest has 32 bytes of
size. ARCH_KMALLOC_MINALIGN is set to 64 bytes. This combo results in
hcd_buffer_alloc() returning memory which is 32 bytes aligned and it
might by identified by buffer_offset() as another buffer. This means the
buffer which is on a 32 byte boundary will not get freed, instead it
tries to free another buffer with the error message.

This patch fixes the issue by creating the smallest DMA buffer with the
size of ARCH_KMALLOC_MINALIGN (or 32 in case ARCH_KMALLOC_MINALIGN is
smaller). This might be 32, 64 or even 128 bytes. The next three pools
will have the size 128, 512 and 2048.
In case the smallest pool is 128 bytes then we have only three pools
instead of four (and zero the first entry in the array).
The last pool size is always 2048 bytes which is the assumed PAGE_SIZE /
2 of 4096. I doubt it makes sense to continue using PAGE_SIZE / 2 where
we would end up with 8KiB buffer in case we have 16KiB pages.
Instead I think it makes sense to have a common size(s) and extend them
if there is need to.
There is a BUILD_BUG_ON() now in case someone has a minalign of more than
128 bytes.

Cc: stable@vger.kernel.org
Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      5efd2ea8
  45. 04 12月, 2014 1 次提交
  47. 27 11月, 2014 1 次提交
  49. 21 11月, 2014 1 次提交
    • K
      usb: phy: introduce usb_phy_set_event interface · df9f7b31
      由 Kiran Raparthy 提交于 
      PHY drivers require a generic interface to handle per-PHY events.

usb_phy_set_event interface sets event to phy event.
PHY drivers call this interface for each phy event.

Cc: Felipe Balbi <balbi@ti.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-kernel@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Cc: Android Kernel Team <kernel-team@android.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Arve Hj�nnev�g <arve@android.com>
Cc: Benoit Goby <benoit@android.com>
[Original patch in Android from Todd]
Cc: Todd Poynor <toddpoynor@google.com>
Signed-off-by: NKiran Raparthy <kiran.kumar@linaro.org>
Signed-off-by: NFelipe Balbi <balbi@ti.com>
      df9f7b31
  51. 12 11月, 2014 1 次提交
  53. 08 11月, 2014 2 次提交