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Commit Graph

15629 Commits

Author SHA1 Message Date
Victor Dodon
ef976ea33b usb: storage: use usb_store_dbg instead of US_DEBUGPX
The US_DEBUGPX macro uses printk without specifying a kernel log level, so
the default kernel log level is used, which may not match LOGLEVEL_DEBUG
used in usb_stor_dbg. Remove the macro and use usb_store_dbg instead.

Signed-off-by: Victor Dodon <printesoi@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-20 20:21:53 -08:00
Dave Penkler
f9cfabcecd usb: usbtmc: Fix disconnect/poll interaction
When the device is disconnected poll waiters were not being woken.

Changes for v2:
  - add commit summary
  - add Fixes and Reported-by tags

Fixes: eb6b92ecc0 ("Add support for receiving USBTMC USB488 SRQ notifications via poll/select")
Reported-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Dave Penkler <dpenkler@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-20 20:21:53 -08:00
Simon Horman
6edd87f589 usb: host: xhci-rcar: Use ARCH_RENESAS
Make use of ARCH_RENESAS in place of ARCH_SHMOBILE.

This is part of an ongoing process to migrate from ARCH_SHMOBILE to
ARCH_RENESAS the motivation for which being that RENESAS seems to be a more
appropriate name than SHMOBILE for the majority of Renesas ARM based SoCs.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-20 20:21:53 -08:00
Simon Horman
a1cd225650 usb: renesas_usbhs: Use ARCH_RENESAS
Make use of ARCH_RENESAS in place of ARCH_SHMOBILE.

This is part of an ongoing process to migrate from ARCH_SHMOBILE to
ARCH_RENESAS the motivation for which being that RENESAS seems to be a more
appropriate name than SHMOBILE for the majority of Renesas ARM based SoCs.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-20 20:21:53 -08:00
Alan
3c724888d2 chipidea: error on overflow for port_test_write
The write value is 8bit, but currently writing a larger number (eg a doubled
digit) is not errored but instead gets cast and sets off an action probably
undesired.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-20 20:15:57 -08:00
Oliver Neukum
0ca10122ca usb/misc/chaoskey: introduce an URB for asynchronous reads
To allow for and clean handling of signals an URB is introduced.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-20 20:12:21 -08:00
Oliver Neukum
0a15e24c27 usb/misc/chaoskey: Cleanup probe failure paths
Shares the cleanup code between all probe failure paths, instead of
having per-failure cleanup at each point in the function.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-20 20:12:21 -08:00
Greg Kroah-Hartman
5b93fe3143 Revert "usb: add HAS_IOMEM dependency to USB_APPLEDISPLAY"
This reverts commit 4b61b4f205.

As reported by Oliver, this change was unnecessary.

Reported-by: Oliver Neukum <oneukum@suse.com>
Cc: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-20 14:21:41 -08:00
Oliver Neukum
264904ccc3 usb: retry reset if a device times out
Some devices I got show an inability to operate right after
power on if they are already connected. They are beyond recovery
if the descriptors are requested multiple times. So in case of
a timeout we rather bail early and reset again. But it must be
done only on the first loop lest we get into a reset/time out
spiral that can be overcome with a retry.

This patch is a rework of a patch that fell through the cracks.
http://www.spinics.net/lists/linux-usb/msg103263.html

Signed-off-by: Oliver Neukum <oneukum@suse.com>
CC: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:42:08 -08:00
Saurabh Sengar
acc27b6aad usb: host: pci_quirks: fix memory leak, by adding iounmap
Added iounmap inorder to free memory mapped to pointer before returning

Signed-off-by: Saurabh Sengar <saurabh.truth@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:21:09 -08:00
Steinar H. Gunderson
f7d34b445a USB: Add support for usbfs zerocopy.
Add a new interface for userspace to preallocate memory that can be
used with usbfs. This gives two primary benefits:

 - Zerocopy; data no longer needs to be copied between the userspace
   and the kernel, but can instead be read directly by the driver from
   userspace's buffers. This works for all kinds of transfers (even if
   nonsensical for control and interrupt transfers); isochronous also
   no longer need to memset() the buffer to zero to avoid leaking kernel data.

 - Once the buffers are allocated, USB transfers can no longer fail due to
   memory fragmentation; previously, long-running programs could run into
   problems finding a large enough contiguous memory chunk, especially on
   embedded systems or at high rates.

Memory is allocated by using mmap() against the usbfs file descriptor,
and similarly deallocated by munmap(). Once memory has been allocated,
using it as pointers to a bulk or isochronous operation means you will
automatically get zerocopy behavior. Note that this also means you cannot
modify outgoing data until the transfer is complete. The same holds for
data on the same cache lines as incoming data; DMA modifying them at the
same time could lead to your changes being overwritten.

There's a new capability USBDEVFS_CAP_MMAP that userspace can query to see
if the running kernel supports this functionality, if just trying mmap() is
not acceptable.

Largely based on a patch by Markus Rechberger with some updates. The original
patch can be found at:

  http://sundtek.de/support/devio_mmap_v0.4.diff

Signed-off-by: Steinar H. Gunderson <sesse@google.com>
Signed-off-by: Markus Rechberger <mrechberger@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:11:48 -08:00
Vegard Nossum
4a6d9f8720 usb: add HAS_IOMEM dependency to USB_ISP1362_HCD
drivers/built-in.o: In function `isp1362_probe':
/home/vegard/linux/drivers/usb/host/isp1362-hcd.c:2668: undefined reference to `devm_ioremap_resource'

Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:09:56 -08:00
Vegard Nossum
f4a5d7028a usb: add HAS_IOMEM dependency to USB_OXU210HP_HCD
drivers/built-in.o: In function `oxu_drv_probe':
/home/vegard/linux/drivers/usb/host/oxu210hp-hcd.c:3821: undefined reference to `devm_ioremap_resource'

Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:09:56 -08:00
Vegard Nossum
c470ba3809 usb: add HAS_IOMEM dependency to USB_PXA27X
drivers/built-in.o: In function `pxa_udc_probe':
/home/vegard/linux/drivers/usb/gadget/udc/pxa27x_udc.c:2430: undefined reference to `devm_ioremap_resource'

Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:09:56 -08:00
Vegard Nossum
1043960c98 usb: add HAS_IOMEM dependency to USB_OHCI_HCD
drivers/built-in.o: In function `ohci_platform_probe':
/home/vegard/linux/drivers/usb/host/ohci-platform.c:246: undefined reference to `devm_ioremap_resource'

Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:09:56 -08:00
Vegard Nossum
4b61b4f205 usb: add HAS_IOMEM dependency to USB_APPLEDISPLAY
warning: (USB_APPLEDISPLAY) selects BACKLIGHT_LCD_SUPPORT which has unmet direct dependencies (HAS_IOMEM)

Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:09:56 -08:00
Vegard Nossum
1b4ea40bbd usb: add HAS_IOMEM dependency to USB_PXA25X
drivers/built-in.o: In function `pxa_udc_probe':
/home/vegard/linux/drivers/usb/gadget/udc/pxa27x_udc.c:2430: undefined reference to `devm_ioremap_resource'

Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:09:56 -08:00
Vegard Nossum
17987ea59b usb: add HAS_IOMEM dependency to USB_MUSB_HDRC
drivers/built-in.o: In function `musb_probe':
/home/vegard/linux/drivers/usb/musb/musb_core.c:2304: undefined reference to `devm_ioremap_resource'

Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:09:56 -08:00
Vegard Nossum
eaa86229ff usb: add HAS_IOMEM dependency to USB_FOTG210_HCD
drivers/built-in.o: In function `fotg210_hcd_probe':
/home/vegard/linux/drivers/usb/host/fotg210-hcd.c:5637: undefined reference to `devm_ioremap_resource'

Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:09:56 -08:00
Vegard Nossum
8f2abe808d usb: add HAS_IOMEM dependency to USB_XHCI_HCD
drivers/built-in.o: In function `xhci_plat_probe':
/home/vegard/linux/drivers/usb/host/xhci-plat.c:160: undefined reference to `devm_ioremap_resource'

Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:09:56 -08:00
Vegard Nossum
aaa98db718 usb: add HAS_IOMEM dependency to USB_EHCI_HCD
drivers/built-in.o: In function `ehci_platform_probe':
/home/vegard/linux/drivers/usb/host/ehci-platform.c:282: undefined reference to `devm_ioremap_resource'
drivers/built-in.o: In function `oxu_drv_probe':
/home/vegard/linux/drivers/usb/host/oxu210hp-hcd.c:3821: undefined reference to `devm_ioremap_resource'
drivers/built-in.o: In function `isp1362_probe':
/home/vegard/linux/drivers/usb/host/isp1362-hcd.c:2668: undefined reference to `devm_ioremap_resource'

Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:09:56 -08:00
Vegard Nossum
89f1ec8ee2 usb: add HAS_IOMEM dependency to USB_DWC2
drivers/built-in.o: In function `dwc2_driver_probe':
/home/vegard/linux/drivers/usb/dwc2/platform.c:491: undefined reference to `devm_ioremap_resource'

Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:09:56 -08:00
Vegard Nossum
cfa33eaeee usb: add HAS_IOMEM dependency to USB_SL811_HCD
CC      drivers/usb/host/xhci-mtk.o
drivers/usb/host/xhci-mtk.c:135:12: warning: ‘xhci_mtk_host_disable’ defined but not used [-Wunused-function]
 static int xhci_mtk_host_disable(struct xhci_hcd_mtk *mtk)
            ^
drivers/usb/host/xhci-mtk.c:313:13: warning: ‘usb_wakeup_enable’ defined but not used [-Wunused-function]
 static void usb_wakeup_enable(struct xhci_hcd_mtk *mtk)
             ^
drivers/usb/host/xhci-mtk.c:321:13: warning: ‘usb_wakeup_disable’ defined but not used [-Wunused-function]
 static void usb_wakeup_disable(struct xhci_hcd_mtk *mtk)
             ^
  CC      drivers/usb/host/sl811-hcd.o
drivers/usb/host/sl811-hcd.c: In function ‘sl811h_remove’:
drivers/usb/host/sl811-hcd.c:1607:3: error: implicit declaration of function ‘iounmap’ [-Werror=implicit-function-declaration]
   iounmap(sl811->data_reg);
   ^
drivers/usb/host/sl811-hcd.c: In function ‘sl811h_probe’:
drivers/usb/host/sl811-hcd.c:1669:3: error: implicit declaration of function ‘ioremap’ [-Werror=implicit-function-declaration]
   addr_reg = ioremap(addr->start, 1);
   ^
drivers/usb/host/sl811-hcd.c:1669:12: warning: assignment makes pointer from integer without a cast [enabled by default]
   addr_reg = ioremap(addr->start, 1);
            ^
drivers/usb/host/sl811-hcd.c:1675:12: warning: assignment makes pointer from integer without a cast [enabled by default]
   data_reg = ioremap(data->start, 1);
            ^

Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:09:56 -08:00
Vegard Nossum
149737a787 usb: add HAS_IOMEM dependency to USB_C67X00_HCD
CC      drivers/usb/c67x00/c67x00-drv.o
drivers/usb/c67x00/c67x00-drv.c: In function ‘c67x00_drv_probe’:
drivers/usb/c67x00/c67x00-drv.c:148:2: error: implicit declaration of function ‘ioremap’ [-Werror=implicit-function-declaration]
  c67x00->hpi.base = ioremap(res->start, resource_size(res));
  ^
drivers/usb/c67x00/c67x00-drv.c:148:19: warning: assignment makes pointer from integer without a cast [enabled by default]
  c67x00->hpi.base = ioremap(res->start, resource_size(res));
                   ^
drivers/usb/c67x00/c67x00-drv.c:185:2: error: implicit declaration of function ‘iounmap’ [-Werror=implicit-function-declaration]
  iounmap(c67x00->hpi.base);
  ^

Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:09:56 -08:00
Vegard Nossum
49f77e3dbb usb: add HAS_IOMEM dependency to USB_MUSB_TUSB6010
CC      drivers/usb/musb/tusb6010.o
drivers/usb/musb/tusb6010.c: In function ‘tusb_musb_init’:
drivers/usb/musb/tusb6010.c:1133:2: error: implicit declaration of function ‘ioremap’ [-Werror=implicit-function-declaration]
  sync = ioremap(mem->start, resource_size(mem));
  ^
drivers/usb/musb/tusb6010.c:1133:7: warning: assignment makes pointer from integer without a cast [enabled by default]
  sync = ioremap(mem->start, resource_size(mem));
       ^
drivers/usb/musb/tusb6010.c:1162:4: error: implicit declaration of function ‘iounmap’ [-Werror=implicit-function-declaration]
    iounmap(sync);
    ^

Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:09:56 -08:00
Vegard Nossum
e37a6c920a usb: add HAS_IOMEM dependency to USB_R8A66597_HCD
CC      drivers/usb/host/r8a66597-hcd.o
drivers/usb/host/r8a66597-hcd.c: In function ‘r8a66597_remove’:
drivers/usb/host/r8a66597-hcd.c:2401:2: error: implicit declaration of function ‘iounmap’ [-Werror=implicit-function-declaration]
  iounmap(r8a66597->reg);
  ^
drivers/usb/host/r8a66597-hcd.c: In function ‘r8a66597_probe’:
drivers/usb/host/r8a66597-hcd.c:2447:2: error: implicit declaration of function ‘ioremap’ [-Werror=implicit-function-declaration]
  reg = ioremap(res->start, resource_size(res));
  ^
drivers/usb/host/r8a66597-hcd.c:2447:6: warning: assignment makes pointer from integer without a cast [enabled by default]
  reg = ioremap(res->start, resource_size(res));
      ^

Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:09:56 -08:00
Vegard Nossum
828638e919 usb: add HAS_IOMEM dependency to USB_XHCI_MVEBU
drivers/usb/host/xhci-mvebu.c: In function ‘xhci_mvebu_mbus_init_quirk’:
drivers/usb/host/xhci-mvebu.c:58:2: error: implicit declaration of function ‘ioremap’ [-Werror=implicit-function-declaration]
  base = ioremap(res->start, resource_size(res));
  ^
drivers/usb/host/xhci-mvebu.c:58:7: warning: assignment makes pointer from integer without a cast [enabled by default]
  base = ioremap(res->start, resource_size(res));
       ^
drivers/usb/host/xhci-mvebu.c:69:2: error: implicit declaration of function ‘iounmap’ [-Werror=implicit-function-declaration]
  iounmap(base);
  ^

Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:09:56 -08:00
Vegard Nossum
be6708e6f2 usb: Add HAS_IOMEM dependency to USB_M66592
drivers/usb/gadget/udc/m66592-udc.c: In function ‘m66592_remove’:
drivers/usb/gadget/udc/m66592-udc.c:1538:2: error: implicit declaration of function ‘iounmap’ [-Werror=implicit-function-declaration]
  iounmap(m66592->reg);
  ^
drivers/usb/gadget/udc/m66592-udc.c: In function ‘m66592_probe’:
drivers/usb/gadget/udc/m66592-udc.c:1577:2: error: implicit declaration of function ‘ioremap’ [-Werror=implicit-function-declaration]
  reg = ioremap(res->start, resource_size(res));
  ^
drivers/usb/gadget/udc/m66592-udc.c:1577:6: warning: assignment makes pointer from integer without a cast [enabled by default]
  reg = ioremap(res->start, resource_size(res));
      ^

Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:09:56 -08:00
Vegard Nossum
7562b75b21 usb: add HAS_IOMEM dependency to USB_NET2272
drivers/usb/gadget/udc/net2272.c: In function ‘net2272_remove’:
drivers/usb/gadget/udc/net2272.c:2232:2: error: implicit declaration of function ‘iounmap’ [-Werror=implicit-function-declaration]
  iounmap(dev->base_addr);
  ^
drivers/usb/gadget/udc/net2272.c: In function ‘net2272_plat_probe’:
drivers/usb/gadget/udc/net2272.c:2650:2: error: implicit declaration of function ‘ioremap_nocache’ [-Werror=implicit-function-declaration]
  dev->base_addr = ioremap_nocache(base, len);
  ^
drivers/usb/gadget/udc/net2272.c:2650:17: warning: assignment makes pointer from integer without a cast [enabled by default]
  dev->base_addr = ioremap_nocache(base, len);
                 ^

Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:09:56 -08:00
Vegard Nossum
ca23d3b747 usb: add HAS_IOMEM dependency to USB_ISP116X_HCD
drivers/usb/host/isp116x-hcd.c: In function ‘isp116x_remove’:
drivers/usb/host/isp116x-hcd.c:1552:2: error: implicit declaration of function ‘iounmap’ [-Werror=implicit-function-declaration]
  iounmap(isp116x->data_reg);
  ^
drivers/usb/host/isp116x-hcd.c: In function ‘isp116x_probe’:
drivers/usb/host/isp116x-hcd.c:1604:2: error: implicit declaration of function ‘ioremap’ [-Werror=implicit-function-declaration]
  addr_reg = ioremap(addr->start, resource_size(addr));
  ^
drivers/usb/host/isp116x-hcd.c:1604:11: warning: assignment makes pointer from integer without a cast [enabled by default]
  addr_reg = ioremap(addr->start, resource_size(addr));
           ^
drivers/usb/host/isp116x-hcd.c:1613:11: warning: assignment makes pointer from integer without a cast [enabled by default]
  data_reg = ioremap(data->start, resource_size(data));
           ^

Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:09:56 -08:00
Robert Jarzmik
c3853d5a70 usb: host: ohci-pxa27x: propagate the irq error code
In several drivers in the pxa architecture, it was found that the
platform_get_irq() was not propagated. This breaks the the device-tree
probe deferral path, if -EPROBE_DEFER is returned. Unfortunately, the
error return in this case is transformed into -ENXIO, breaking the
deferral mechanism.

Even if in this specific case the driver was not broken, because the
interrupt controller is always probed before drivers, propagate the
proper return code.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:06:43 -08:00
Oliver Neukum
a81cf9799a cdc-acm: implement put_char() and flush_chars()
This should cut down latencies and waste if the tty layer writes single bytes.

Signed-off-by: Oliver Neukum >oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:06:43 -08:00
Mathias Nyman
2f6d3b6537 xhci: Support extended burst isoc TRB structure used by xhci 1.1 for USB 3.1
The transfer burst count (TBC) field in the Isoc TRB does not fit the new
larger burst count available for USB 3.1 SSP Isoc tranfers.
xhci 1.1 solved this by reusing the TD size field for transfer burst count.
The Mult field was outgrown as well. xhci 1.1  controllers can calculate
Mult itself and is not set if the new layout is used.

xhci 1.1 controllers that support the new Isoc TRB format expose a
Extended TBC Capability (ETC). To take the new format into use the xhci
host controller driver needs to set a Extended TBC Enable (ETE) bit.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:03:23 -08:00
Mathias Nyman
09c352ed67 xhci: cleanup isoc tranfers queuing code
Clean up xhci_queue_isoc_tx() and helpers to prepare them for USB 3.1 and
xhci 1.1 isoc TRB changes.

Only functional change is adding xhci version 1.1 to the BEI flag check
toghether with xhci version 1.0. Both versions behave the same.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:03:23 -08:00
Mathias Nyman
8ef8a9f5c1 xhci: Add SuperSpeedPlus high bandwidth isoc support to xhci endpoints
SuperSpeedPlus doubled the number of transactions per service interval
the isoc endpoints supports.

To support this, xhci 1.1 added Large ESIT Capability (LEC), which
takes into use new bits in the endpoint context to fit the parameters.

If xhci supports LEC, and the device has a SuperSpeedPlus Isoc companion
descriptor then take into use the high bits of max esit payload, and
skip calculating the Mult field as it wouldn't fit. LEC capable
host will calculate the Mult based on other paramenters.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:03:23 -08:00
Mathias Nyman
def4e6f7b4 xhci: refactor and cleanup endpoint initialization.
xhci_endpoint_init() and helper functions were a bit messy.
Adding the higher bandwidth SuperSpeedPlus Isoc support on
top of it would make it even harder to read.

No functional changes.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:03:23 -08:00
Mathias Nyman
faee822c5a usb: Add USB 3.1 Precision time measurement capability descriptor support
USB 3.1 devices that support precision time measurement have an
additional PTM cabaility descriptor as part of the full BOS descriptor

Look for this descriptor while parsing the BOS descriptor, and store it in
struct usb_hub_bos if it exists.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:03:23 -08:00
Mathias Nyman
b37d83a6a4 usb: Parse the new USB 3.1 SuperSpeedPlus Isoc endpoint companion descriptor
USB 3.1 devices can return a new SuperSpeedPlus isoc endpoint companion
descriptor for a isochronous endpoint that requires more than 48K bytes
per Service Interval.

The new descriptor immediately follows the old USB 3.0 SuperSpeed Endpoint
Companion and will provide a new BytesPerInterval value.

It is parsed and stored in struct usb_host_endpoint with the other endpoint
related descriptors, and should be used by USB3.1 capable hosts to reserve
bus time in the schedule.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:03:23 -08:00
Greg Kroah-Hartman
172ad9af55 Merge 4.5-rc4 into usb-next
We want the USB fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 14:38:30 -08:00
Saurabh Sengar
a44007a42d drivers: usb: removed assignment of 0 to static variables
fixing the error reported by script checkpatch.pl
static variables blinkenlights and old_scheme_first
were initialised to 0, correcting it.

Signed-off-by: Saurabh Sengar <saurabh.truth@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-09 17:20:54 -08:00
Heiner Kallweit
b1249ab513 usb: r8a66597: add locking to r8a66597_check_detect_child
Use mutex usb_bus_idr_lock to protect idr_find.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06 21:55:57 -08:00
Heiner Kallweit
a4b5d606b9 usb: core: rename mutex usb_bus_list_lock to usb_bus_idr_lock
Now that usb_bus_list has been removed and switched to idr
rename the related mutex accordingly.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06 21:55:57 -08:00
Joe Lawrence
89140fdaf1 xhci: harden xhci_find_next_ext_cap against device removal
xhci_find_next_ext_cap doesn't check for PCI hotplug removal and may use
the PCI master abort bit pattern (~0) to calculate a new PCI address
offset to read/write.  The has lead to reproducable crashes when testing
surprise removal during device initialization on a Stratus platform, at
least after commit d5ddcdf4d6 ("xhci: rework xhci extended capability
list parsing functions").

The crash is repeatable on a Stratus platform when injecting hardware
faults to induce xHCI host controller hotplug during driver
initialization.  If a PCI read in xhci_find_next_ext_cap returns the
master abort pattern, quirk_usb_handoff_xhci may start using a bogus
ext_cap_offset to start searching more bogus PCI addresses.

Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-04 17:00:10 -08:00
Greg Kroah-Hartman
207b08b942 usb: fixes for v4.5-rc2
DWC3 got a fix for OTG Certification, DWC2 has two fixes for regressions on
 RasPI, MUSB has a NULL pointer dereference fix for ux500 platforms and two
 PHYs (MSM and MXS) got some minor fixes.
 
 While at that, I'm also adding a fix to my email address which has changed
 recently.
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Merge tag 'fixes-for-v4.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus

Felipe writes:

usb: fixes for v4.5-rc2

DWC3 got a fix for OTG Certification, DWC2 has two fixes for regressions on
RasPI, MUSB has a NULL pointer dereference fix for ux500 platforms and two
PHYs (MSM and MXS) got some minor fixes.

While at that, I'm also adding a fix to my email address which has changed
recently.
2016-02-04 13:07:23 -08:00
Alan Stern
1586ba0c21 USB: EHCI: fix compiler warning introduced by commit 2a40f32454
Fix the following compiler warning (found by the kbuild test robot):

drivers/usb/host/ehci-hcd.c:312:13: warning: 'unlink_empty_async_suspended' declared 'static' but never defined

Commit 2a40f32454 ("USB: EHCI: fix regression during bus resume")
protected the function definition with a "#ifdef CONFIG_PM" block, so
now the declaration needs to be similarly protected.  This patch moves
it to a better location.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-04 11:27:11 -08:00
Mathias Nyman
5c82171167 xhci: Fix list corruption in urb dequeue at host removal
xhci driver frees data for all devices, both usb2 and and usb3 the
first time usb_remove_hcd() is called, including td_list and and xhci_ring
structures.

When usb_remove_hcd() is called a second time for the second xhci bus it
will try to dequeue all pending urbs, and touches td_list which is already
freed for that endpoint.

Cc: <stable@vger.kernel.org>
Reported-by: Joe Lawrence <joe.lawrence@stratus.com>
Tested-by: Joe Lawrence <joe.lawrence@stratus.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-03 14:01:47 -08:00
Gregory CLEMENT
2ad294d5f9 usb: host: xhci-plat: fix NULL pointer in probe for device tree case
During probe, in the device tree case, the data pointer associated to a
compatible is dereferenced. However, not all the compatibles are
associated to a private data pointer.

The generic-xhci and the xhci-platform don't need them, this patch adds a
test on the data pointer before accessing it, avoiding a kernel crash.

Fixes: 4efb2f6941 ("usb: host: xhci-plat: add struct xhci_plat_priv")
Cc: stable@vger.kernel.org
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-03 14:01:47 -08:00
Chunfeng Yun
882fa27f48 usb: xhci-mtk: fix AHB bus hang up caused by roothubs polling
when ip fails to enter sleep mode, register access protection will
be disabled, at the same time if all clocks are disabled, access
register will hang up AHB bus.
the common case causes ip sleep failure is that after all ports
enter U3 but before ip enters sleep mode, a port receives a resume
signal('K'). this will happens when such as clicks mouse to try to
do remote-wakeup to stop system enter suspend.
so stop polling root hubs to avoid access xHCI register on bus
suspend, and restart it when bus resumes.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-03 14:01:47 -08:00
Chunfeng Yun
b765a16a11 usb: xhci-mtk: fix bpkts value of LS/HS periodic eps not behind TT
when a LS or FS device doesn't connect though a HS hub,
the @bPkts field of its periodic endpoint context should
be set to 1.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-03 14:01:47 -08:00
Lu Baolu
ccc04afb72 usb: xhci: apply XHCI_PME_STUCK_QUIRK to Intel Broxton-M platforms
Intel Broxton M was verifed to require XHCI_PME_STUCK_QUIRK quirk as well.

Cc: stable@vger.kernel.org
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-03 14:01:47 -08:00