coreboot-kgpe-d16/payloads/libpayload
Furquan Shaikh fe35623f20 libpayload: udc/dwc2: Ignore setup packet in check for queue empty
during shutdown

DWC2 UDC controller always requires an active packet to be present in
EP0-OUT to ensure proper operation of control plane. Thus, during
shutdown ignore EP0-OUT for queue empty check if only 1 packet is
present.

BUG=b:24676003
BRANCH=None
TEST=Compiles successfully. "fastboot reboot-bootloader" reboots
device without timeout in udc shutdown.

Change-Id: Iafe46c80f58c4cd57f8d58f060d805b603506bbd
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 4e7c27d849c0411aae58e60a24d8170a27ab8485
Original-Change-Id: Ifa493ce0e41964ee7ca8bb3a1f4bb8726fa11173
Original-Signed-off-by: Furquan Shaikh <furquan@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/311257
Original-Commit-Ready: Furquan Shaikh <furquan@chromium.org>
Original-Tested-by: Furquan Shaikh <furquan@chromium.org>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/12413
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins)
2015-11-13 00:53:02 +01:00
..
arch tree: drop last paragraph of GPL copyright header 2015-10-31 21:37:39 +01:00
bin libpayload: Rename PDCurses-3.4 to PDCurses 2015-11-11 21:38:48 +01:00
configs libpayload/configs: Add default configuration with TinyCurses enabled 2015-10-17 06:53:37 +00:00
crypto libpayload: Make Kconfig bools use IS_ENABLED() 2015-06-30 18:55:15 +02:00
curses libpayload: Rename PDCurses-3.4 to PDCurses 2015-11-11 21:38:48 +01:00
drivers libpayload: udc/dwc2: Ignore setup packet in check for queue empty 2015-11-13 00:53:02 +01:00
gdb tree: drop last paragraph of GPL copyright header 2015-10-31 21:37:39 +01:00
include libpayload: queue: Add a helper macro for checking singleton queue 2015-11-13 00:52:58 +01:00
libc libpayload: Fix default_memmove() implementation 2015-08-19 16:35:08 +00:00
libcbfs libpayload: Allow non-default CBFS media 2015-11-05 17:39:42 +01:00
liblz4 libpayload: lz4: Add output overrun check to incompressible case 2015-07-21 21:27:42 +02:00
liblzma lzma: Return correct amount of decompressed bytes 2015-07-06 09:40:37 +02:00
libpci Remove empty lines at end of file 2015-06-08 00:55:07 +02:00
sample Remove empty lines at end of file 2015-06-08 00:55:07 +02:00
tests Remove empty lines at end of file 2015-06-08 00:55:07 +02:00
Doxyfile Run doxygen -u on doxygen configuration files 2010-06-28 10:40:38 +00:00
Kconfig libpayload/Kconfig: Use official spelling for TinyCurses 2015-10-17 06:53:52 +00:00
LICENSES libpayload: Add LZ4 decompression algorithm 2015-07-09 00:10:16 +02:00
LICENSE_GPL libpayload: Introduce new Kconfig to explicitly allow GPL code 2015-01-09 07:06:27 +01:00
Makefile libpayload: Add missing autoconf dependency 2015-09-10 09:18:12 +00:00
Makefile.inc libpayload: Use CONFIG_LP_CCACHE instead of CONFIG_CCACHE 2015-08-09 21:02:37 +02:00
README Remove empty lines at end of file 2015-06-08 00:55:07 +02:00

README

-------------------------------------------------------------------------------
libpayload README
-------------------------------------------------------------------------------

libpayload is a minimal library to support standalone payloads
that can be booted with firmware like coreboot. It handles the setup
code, and provides common C library symbols such as malloc() and printf().

Note: This is _not_ a standard library for use with an operating system,
rather it's only useful for coreboot payload development!
See http://coreboot.org for details on coreboot.


Installation
------------

 $ git clone http://review.coreboot.org/p/coreboot.git

 $ cd coreboot/payloads/libpayload

 $ make menuconfig

 $ make

 $ sudo make install (optional, will install into /opt per default)

As libpayload is for 32bit x86 systems only, you might have to install the
32bit libgcc version, otherwise your payloads will fail to compile.
On Debian systems you'd do 'apt-get install gcc-multilib' for example.


Usage
-----

Here's an example of a very simple payload (hello.c) and how to build it:

 #include <libpayload.h>

 int main(void)
 {
     printf("Hello, world!\n");
     return 0;
 }

Building the payload using the 'lpgcc' compiler wrapper:

 $ lpgcc -o hello.elf hello.c

Please see the sample/ directory for details.


Website and Mailing List
------------------------

The main website is http://www.coreboot.org/Libpayload.

For additional information, patches, and discussions, please join the
coreboot mailing list at http://coreboot.org/Mailinglist, where most
libpayload developers are subscribed.


Copyright and License
---------------------

See LICENSES.