Commit graph

248 commits

Author SHA1 Message Date
Inha Song
075020abbf usb: f_mass_storage: sleep_thread: decrease the interval for check ctrlc()
This change decreases the interval of calls to:
- display busy indicator
- check ctrlc()
- check cable connection

By this change, breaking the UMS command is more easy on Odroid XU3.

Signed-off-by: Inha Song <ideal.song@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Marek Vasut <marex@denx.de>
2015-06-08 15:26:00 +02:00
Siva Durga Prasad Paladugu
6a13241635 ci_udc: Update the ci_udc driver to support bulk transfers
Update the ci_udc driver to support bulk transfer
and also added capability of having multiple dtds
if requested data is more than 16K.
These changes are tested for both the DFU and lthor.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
2015-05-29 12:41:04 +02:00
Joe Hershberger
1fd92db83d net: cosmetic: Fix var naming net <-> eth drivers
Update the naming convention used in the network stack functions and
variables that Ethernet drivers use to interact with it.

This cleans up the temporary hacks that were added to this interface
along with the DM support.

This patch has a few remaining checkpatch.pl failures that would be out
of the scope of this patch to fix (drivers that are in gross violation
of checkpatch.pl).

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-04-18 11:11:33 -06:00
Joe Hershberger
0adb5b761f net: cosmetic: Name ethaddr variables consistently
Use "_ethaddr" at the end of variables and drop CamelCase.
Make constant values actually 'const'.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-04-18 11:11:32 -06:00
Simon Glass
fbeceb2602 dm: usb: Allow setting up a USB controller as a device/gadget
Some controllers support OTG (on-the-go) where they can operate as either
host or device. The gadget layer in U-Boot supports this.

While this layer does not interact with driver model, we can provide a
function which sets up the controller in the correct way. This way the code
at least builds (although it likely will not work).

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
2015-04-18 11:11:25 -06:00
Alexey Firago
e2ec3e4612 fastboot: add support for reboot-bootloader command
The "fastboot reboot-bootloader" command is defined to
re-enter into fastboot mode after rebooting into
bootloader. This command is usually used after updating
bootloader via fastboot.

This commit implements only a generic side of the
command - setting of the reset flag and then resetting.
Setting of the reset flag is implemented using __weak
fb_set_reboot_flag() function. The actual setting and
checking of the reset flag should be implemented by
a boot script and/or board/SoC specific code.

Signed-off-by: Alexey Firago <alexey_firago@mentor.com>
Tested-by: Steve Rae <srae@broadcom.com>
[Test HW: bcm28155_ap board]
2015-04-14 10:19:05 +02:00
Marek Szyprowski
7704fdbda3 usb: gadget: thor: Claim EP after allocating it in thor gadget
Storing thor device struct as an EP private data. It is necessary for
DWC3 operation.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
2015-04-14 05:48:12 +02:00
Marek Szyprowski
16bece51c5 usb: dwc3: gadget: add common endpoint configuration for dwc3 udc driver
This patch adds code to select standard, commonly used usb endpoint
configuration (ep1in-bulk, ep2out-bulk, ep3in-int) to dwc3 driver. This
ensures compatibility with old userspace and windows drivers, which
expects hardcoded endpoint numbers.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
2015-04-14 05:48:12 +02:00
Lukasz Majewski
6d69173207 usb: composite: Add .reset callback to usb_gadget_driver structure
DWC3 UDC driver requires presence of .reset callback in a composite driver.
This setting is similar to the one nowadays present in linux kernel.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
2015-04-14 05:48:12 +02:00
Kishon Vijay Abraham I
2d48aa69bd usb: modify usb_gadget_handle_interrupts to take controller index
Since we support multiple dwc3 controllers to be existent at the same
time, in order to handle the interrupts of a particular dwc3 controller
usb_gadget_handle_interrutps should take controller index as an
argument.

Hence the API of usb_gadget_handle_interrupts is modified to take
controller index as an argument and made the corresponding changes to all
the usb_gadget_handle_interrupts calls.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
2015-04-14 05:48:11 +02:00
Kishon Vijay Abraham I
04afd5b59b usb: gadget: defer setting maxpacket till ->setup()
Taken from linux kernel with commit
commit 765f5b830e547229bb752e7b232ee83e2b3d49d5
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Thu Jun 23 14:26:11 2011 +0200

usb: gadget: defer setting maxpacket till ->setup()

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
2015-04-14 05:48:11 +02:00
Kishon Vijay Abraham I
5b9ce0e28a usb: dwc3: Makefile: Make dwc3 driver compile in u-boot
Now that the entire dwc3 driver is adapted to compile with uboot build,
modify the Makefiles so that the dwc3 driver can be built.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
2015-04-14 05:48:10 +02:00
Kishon Vijay Abraham I
103fa06cfe usb: gadget: udc: make udc-core compile in u-boot build
Make udc-core compile in u-boot by removing all linux specific
stuff and having only the bare minimal udc-core required for
usb gadget drivers. Also modified the file header to a format that is
generally being used in u-boot.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
2015-04-14 05:48:08 +02:00
Kishon Vijay Abraham I
a139b96a47 usb: gadget: udc: add udc-core from linux kernel to u-boot
Added udc-core.c from linux kernel 3.19-rc1 (97bf6af1f9) to u-boot.
This will be adapted to work with u-boot in the
following patches.
Adding support for udc will help to seamlessly port dwc3 driver from
linux kernel to u-boot (since dwc3 uses udc-core) and it'll also help
to add support for multiple gadget controllers to be functional at the
same time.
All other gadget drivers can also be adapted to use udc-core.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
2015-04-14 05:48:08 +02:00
Thierry Reding
ec5e78cf8a usb: mass-storage: Build warning fixes for 64-bit
Fix a printf format mismatch warning seen on 64-bit builds.

Cc: Łukasz Majewski <l.majewski@samsung.com>
Cc: Marek Vasut <marex@denx.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
2015-04-14 05:47:48 +02:00
Rob Herring
f72d8320b6 usb: ci_udc: fix warnings on 64-bit builds
Change addresses to unsigned long to be compatible with 64-bit builds.
Regardless of fixing warnings, the device is still only 32-bit capable.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: "Łukasz Majewski" <l.majewski@samsung.com>
Cc: Marek Vasut <marex@denx.de>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
2015-04-14 05:47:47 +02:00
Bin Meng
a7c3d5e2a9 net: Add ethernet FCS length macro in net.h
Some ethernet drivers use their own version of ethernet FCS length
macro which is really common. We define ETH_FCS_LEN in net.h and
replace those custom versions in various places.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2015-03-24 21:22:37 -06:00
Dileep Katta
537cd072da usb: gadget: fastboot: Set the Serial Number for Fastboot Gadget
Configure the serial number using the serial# environment variable
during the fastboot bind.

This enables "fastboot devices" to return the serial number for
the attached devices.

Signed-off-by: Dileep Katta <dileep.katta@linaro.org>
Acked-by: Steve Rae <srae@broadcom.com>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
2015-02-25 17:47:02 +01:00
Dileep Katta
9e4b510d40 fastboot: OUT transaction length must be aligned to wMaxPacketSize
OUT transactions must be aligned to wMaxPacketSize for each transfer,
or else transfer will not complete successfully. This patch modifies
rx_bytes_expected to return a transfer length that is aligned to
wMaxPacketSize.

Note that the value of wMaxPacketSize and ep->maxpacket may not be
the same value, and it is the value of wMaxPacketSize that should be
used for alignment. wMaxPacketSize is passed depending on the speed of
connection.

Signed-off-by: Dileep Katta <dileep.katta@linaro.org>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
2015-02-25 17:47:02 +01:00
Dileep Katta
897923819c usb: gadget: fastboot: Add fastboot erase
Adds the fastboot erase functionality, to erase a partition
specified by name. The erase is performed based on erase group size,
to avoid erasing other partitions. The start address and the size
is aligned to the erase group size for this.

Currently only supports erasing from eMMC.

Signed-off-by: Dileep Katta <dileep.katta@linaro.org>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
2015-02-25 17:47:02 +01:00
Rob Herring
372d7decfe fastboot: add support for "oem format" command
Add "oem format" command to write partition table. This relies on the
env variable partitions to contain the list of partitions as required by
the gpt command.

Note that this does not erase any data other than the partition table.

Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Steve Rae <srae@broadcom.com>
2015-02-25 17:47:02 +01:00
Michael Scott
de1956202e fastboot: add "fastboot oem" command support
Add code stub to handle "fastboot oem __" command. As unlock is a common
fastboot command, distinguish that it is not implemented.

Signed-off-by: Michael Scott <michael.scott@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Tested-by: Steve Rae <srae@broadcom.com>
2015-02-25 17:47:02 +01:00
Alex Sadovsky
c0978a94aa usb: gadget: pxa25x_udc: fix use-before-initialized bug
Fix use-before-initialized bug in pxa25x_udc driver.

Function usb_gadget_register_driver calls udc_disable,
and udc_disable calls pullup_off that uses dev->mach->udc_command.
But dev->mach is initialized in usb_gadget_register_driver after
calling udc_disable. This patch fixes the order of initialization.

Signed-off-by: Alex Sadovsky <Nable.MainInbox@googlemail.com>
2015-01-18 12:31:01 +01:00
Stefan Roese
1fd81b7c23 usb: gadget: f_dfu: Add get_alt function to pass the USB compliance test
Without this function the USB compliance test (USB 2.0 Command Verifier) will
fail in the "Interface Descriptor Test" with this error message:

FAIL
(1.2.51) A successful GetInterface request must return the alternate setting
set by a prior call to SetInterface.

Lets add this function to read back the value so that the DFU device fully
passes the USB compliance test.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Roger Meier <r.meier@siemens.com>
Cc: Samuel Egli <samuel.egli@siemens.com>
Cc: Enrico Leto <enrico.leto@siemens.com>
Acked-by: Heiko Schocher <hs@denx.de>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Marek Vasut <marex@denx.de>
2015-01-18 12:31:00 +01:00
Stefan Roese
87ed6b1067 usb: gadget: composite: Fix NULL pointer crash in USB compliance test
On the DXR2 board (AM335x using MUSB) the USB compliance test suite
(USB 2.0 Command Verifier) will cause the board to crash and reset
upon the "BOS Descriptor Test - Addressed state". Here the output
from the DRX2 while running this test:

GADGET DRIVER: usb_dnl_dfu
musb-hdrc: peripheral reset irq lost!
composite_setup (776)
data abort
pc : [<87f693ac>]          lr : [<87f6911c>]
sp : 86f33a58  ip : 00000000     fp : 86f3bbac
r10: 00000f00  r9 : 86f33ef4     r8 : 86f37da8
r7 : 00000005  r6 : 86f33a90     r5 : 00000000  r4 : 86f37e30
r3 : 00000000  r2 : 00000000     r1 : 87f9c888  r0 : 00000016
Flags: Nzcv  IRQs off  FIQs on  Mode SVC_32
Resetting CPU ...

resetting ...

By adding the case statement for USB_DT_BOS and therefore not running
into the default case (jump to unkown label) this crash is fixed.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Roger Meier <r.meier@siemens.com>
Cc: Samuel Egli <samuel.egli@siemens.com>
Cc: Enrico Leto <enrico.leto@siemens.com>
Acked-by: Heiko Schocher <hs@denx.de>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Marek Vasut <marex@denx.de>
2015-01-18 12:31:00 +01:00
Przemyslaw Marczak
62a96d805f gadget: f_thor: check pointers before use in download_tail()
Some pointers in function download_tail() were not checked
before the use. This could possibly cause the data abort.
To avoid this, check if the pointers are not null is added.

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
[TestHW: Exynos4412-Trats2]
2014-12-18 12:26:06 +01:00
Rob Herring
267abc626d fastboot: add support for continue command
The fastboot continue command is defined to exit fastboot and continue
autoboot. This commit implements the continue command and the exiting of
fastboot only. Subsequent u-boot commands can be processed after exiting
fastboot. Autoboot should implement a boot script such as "fastboot; mmc
read <...>; bootm" to fully implement the fastboot continue function.

Signed-off-by: Rob Herring <robh@kernel.org>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
[TestHW: Exynos4412-Trats2]
2014-12-18 12:26:06 +01:00
Rob Herring
fe1b28c9f0 usb, g_dnl: generalize DFU detach functions
In order to add detach functions for fastboot, make the DFU detach related
functions common so they can be shared.

Signed-off-by: Rob Herring <robh@kernel.org>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
[TestHW: Exynos4412-Trats2]
2014-12-18 12:26:05 +01:00
Bo Shen
68ae882596 USB: gadget: atmel_usba_udc: fix transfer hang issue
When receive data, the RXRDY in status register set by hardware
after a new packet has been stored in the endpoint FIFO. After,
we copy from FIFO, we clear it, make the FIFO can be accessed
again.
In the receive_data() function, this bit RXRDY has been cleared.
So, after the receive_data() function return, this bit should
not be cleared again, or else it will cause the accessing FIFO
corrupt, which will make the data loss.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
2014-12-16 16:08:50 +01:00
Masahiro Yamada
80d9ef8d40 lib: string: move strlcpy() to a common place
Move strlcpy() definition from drivers/usb/gadget/ether.c to
lib/string.c because it is a very useful function.
Let's add the prototype to include/linux/string.h too.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
2014-12-11 13:18:41 -07:00
Masahiro Yamada
b41411954d linux/kernel.h: sync min, max, min3, max3 macros with Linux
U-Boot has never cared about the type when we get max/min of two
values, but Linux Kernel does.  This commit gets min, max, min3, max3
macros synced with the kernel introducing type checks.

Many of references of those macros must be fixed to suppress warnings.
We have two options:
 - Use min, max, min3, max3 only when the arguments have the same type
   (or add casts to the arguments)
 - Use min_t/max_t instead with the appropriate type for the first
   argument

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Pavel Machek <pavel@denx.de>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
[trini: Fixup arch/blackfin/lib/string.c]
Signed-off-by: Tom Rini <trini@ti.com>
2014-11-23 06:48:30 -05:00
Marek Vasut
481a11c552 usb: s3c-otg: Allow custom gusbcfg
Allow passing in a custom configuration of the gusbcfg register
via platform data.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <clsee@altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Vince Bridgers <vbridger@altera.com>
Acked-by: Pavel Machek <pavel@denx.de>
Cc: Stefan Roese <sr@denx.de>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
2014-11-07 16:32:02 +01:00
Marek Vasut
d1b6c77e1f usb: s3c-otg: Split out PHY control
Split the Samsung specific PHY control into a separate file
and compile this into the S3C OTG driver only if used on a
Samsung system.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <clsee@altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Vince Bridgers <vbridger@altera.com>
Acked-by: Pavel Machek <pavel@denx.de>
Cc: Stefan Roese <sr@denx.de>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
2014-11-07 16:32:02 +01:00
Marek Vasut
40ff06b958 usb: s3c-otg: Encapsulate PHY control
Encapsulate the Samsung PHY control and its register accesses
into the otg_phy_init() and otg_phy_off() functions.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <clsee@altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Vince Bridgers <vbridger@altera.com>
Cc: Stefan Roese <sr@denx.de>
Acked-by: Pavel Machek <pavel@denx.de>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
2014-11-06 21:05:54 +01:00
Marek Vasut
2cc157b0cd usb: s3c-otg: Remove useless include
Remove the useless inclusion of arch/arm/gpio.h , which is completely
bogus in this driver.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <clsee@altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Vince Bridgers <vbridger@altera.com>
Cc: Stefan Roese <sr@denx.de>
Acked-by: Pavel Machek <pavel@denx.de>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
2014-11-06 21:04:20 +01:00
Eric Nelson
e2140588dd usb: gadget: fastboot: terminate commands with NULL
Without NULL termination, various commands will read past the
end of input. In particular, this was noticed with error()
calls in cb_getvar and simple_strtoul() in cb_download.

Since the download callback happens elsewhere, the 4k buffer
should always be sufficient to handle command arguments.

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
2014-10-06 21:07:44 +02:00
Eric Nelson
84c24f66c2 usb: gadget: fastboot: explicitly set radix of maximum download size
The processing of the max-download-size variable requires a
radix specifier, or the fastboot host tool will interpret
it as an octal number.

See function get_target_sparse_limit() in file fastboot/fastboot.c
in the AOSP:
        https://android.googlesource.com/platform/system/core/+/master

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
2014-10-06 14:50:44 +02:00
Eric Nelson
c674a6660e usb: gadget: fastboot: add max-download-size variable
Current Android Fastboot seems to use 'max-download-size' instead
of 'downloadsize' variable to indicate the maximum size of sparse
segments.

See function get_target_sparse_limit() in file fastboot/fastboot.c
in the AOSP:
	 https://android.googlesource.com/platform/system/core/+/master

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
2014-10-06 14:50:44 +02:00
Eric Nelson
e206799370 usb: ci_udc: respect CONFIG_USB_GADGET_DUALSPEED
Force full-speed (12 Mbit/s) operation if CONFIG_USB_GADGET_DUALSPEED
is not defined.

The controller is capable of high-speed (480 Mbit/s) operation,
but some designs may require the use of lower-speed operation.

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
2014-10-06 14:50:44 +02:00
Bo Shen
23d1d10c42 usb: gadget: fastboot: improve download progress bar
When download is ongoing, if the actual size of one transfer
is not the same as BYTES_PER_DOT, which will cause the dot
won't print anymore. Then it will let the user thinking it
is stuck, actually it is transfering without dot printed.

So, improve the method to show the progress bar (print dot).

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Acked-by: Marek Vasut <marex@denx.de>
2014-10-06 14:50:43 +02:00
Eric Nelson
f9935c87b6 usb: f_mass_storage: set removable flag in do_inquiry based on LUN
Without this flag, tools like Alex Page's USB Image Tool
won't see drives exposed over USB Gadget as removable,
and won't allow access to them.
	http://www.alexpage.de/usb-image-tool/

The code was pulled from the main-line kernel:
	drivers/usb/gadget/function/f_mass_storage.c

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
2014-10-06 14:50:43 +02:00
Heiko Schocher
9f3b8ed14c usb: dfu: add fullspeed support for DFU
DFU now can use also fullspeed.

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Tom Rini <trini@ti.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Liu Bin <b-liu@ti.com>
Cc: Lukas Stockmann <lukas.stockmann@siemens.com>
2014-10-06 14:50:43 +02:00
Lukasz Majewski
b9c99d3246 usb: dfu: thor: gadget: Remove dead code
This code is not used anymore in the current DFU implementation and
can be safely removed.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
2014-10-06 14:50:43 +02:00
Masahiro Yamada
c79cba37b3 cosmetic: replace MIN, MAX with min, max
The macro MIN, MAX is defined as the aliase of min, max,
respectively.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-09-24 18:30:29 -04:00
Steve Rae
593cbd93f3 usb/gadget: fastboot: minor cleanup
- update static function
- additional debugging statements
- update "fastboot command" information
- add missing include file
- update spelling

Signed-off-by: Steve Rae <srae@broadcom.com>
2014-09-24 18:30:27 -04:00
Steve Rae
d1b5ed0753 usb/gadget: fastboot: add support for flash command
- implement 'fastboot flash' for eMMC devices

Signed-off-by: Steve Rae <srae@broadcom.com>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
Reviewed-by: Marek Vasut <marex@denx.de>
2014-09-24 18:30:27 -04:00
Bo Shen
06fa91cd67 USB: gadget: s3c: get rid of debug compile warning
When enable debug option to compile, it will give the following
warning, this patch is used to get rid of it.
--->8---
warning: 'flags' is used uninitialized in this function [-Wuninitialized]
---8<---

Signed-off-by: Bo Shen <voice.shen@atmel.com>
2014-09-02 14:32:15 +02:00
Bo Shen
f9abd4b415 USB: gadget: atmel: get rid of debug compile warning
When enable debug option to compile, it will give the following
warning, this patch is used to get rid of it.
--->8---
warning: 'flags' is used uninitialized in this function [-Wuninitialized]
---8<---

Signed-off-by: Bo Shen <voice.shen@atmel.com>
2014-09-02 14:32:15 +02:00
Stephen Warren
842ef9a98e usb: ci_udc: implement dfu_usb_get_reset
This allows the USB code to determine whether a USB bus reset was issued,
which in turn allows the code to differentiate between a detach (return
to shell prompt) and a board reset/reboot request.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
2014-09-02 14:29:28 +02:00
Lukasz Majewski
f2ec4e34aa udc: dfu: s3c_udc: Provide function to check if USB reset was asserted
New dfu_usb_get_reset() method is necessary to distinct two different
use cases of dfu-util program.
This method checks if the USB bus reset has been really performed after
DFU DETACH.

Without this function the previous DFU behavior is preserved.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
2014-09-02 14:29:28 +02:00