[PATCH 0/3] Support for fastboot over UDP

["Daniel Glöckner" <dg@emlix.com>]

This patch series adds support the UDP variant of the fastboot protocol
that was already supported in its USB form by Barebox. There is also a
TCP variant, but Barebox obviously can't support that one with its
current network stack.

The first patch separates all functions that can be reused into a file in
common/. Although git didn't pick up the similarities, common/fastboot.c
can be easily diffed against the old drivers/usb/gadget/f_fastboot.c,
especially after replacing struct f_fb with fb and struct f_fastboot with
struct fastboot.

The global.usbgadget.fastboot_max_download_size variable has not been
renamed because someone might expect it to have that name. But I'll
happily drop the usbgadget part from the name if you prefer.

The generic Kconfig options have been renamed. We could add options
with the old name that select the new options to make the transition
easier.

The second patch contains the implementation. The code was initially
taken from U-Boot, but had to be rewritten heavily to fit the way the
existing Barebox fastboot code executes commands and prints messages.
Contrary to U-Boot it does not send keep alive messages every 30
seconds because everything is executed from a poller. The timeout of
Google's fastboot tool is 60 seconds.

The third patch was necessary to allow network interfaces to be activated
without sending packets. The fastboot code sends packets only in reply to
received packets.

Daniel Glöckner (1):
  fastboot net: workaround for receiving before sending

Edmund Henniges (2):
  fastboot: split generic code from USB gadget
  fastboot net: implement fastboot over UDP

 common/Kconfig                  |  35 ++
 common/Makefile                 |   1 +
 common/fastboot.c               | 958 +++++++++++++++++++++++++++++++
 drivers/usb/gadget/Kconfig      |   3 +-
 drivers/usb/gadget/f_fastboot.c | 968 ++------------------------------
 drivers/usb/gadget/multi.c      |   5 +-
 include/fastboot.h              |  67 +++
 include/fastboot_net.h          |  12 +
 include/net.h                   |   1 +
 include/usb/fastboot.h          |  34 +-
 include/usb/gadget-multi.h      |   2 +-
 net/Kconfig                     |  17 +
 net/Makefile                    |   1 +
 net/eth.c                       |   2 +-
 net/fastboot.c                  | 438 +++++++++++++++
 15 files changed, 1579 insertions(+), 965 deletions(-)
 create mode 100644 common/fastboot.c
 create mode 100644 include/fastboot.h
 create mode 100644 include/fastboot_net.h
 create mode 100644 net/fastboot.c

-- 
2.17.1


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