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coreboot-kgpe-d16/payloads/libpayload/include
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Patrick Georgi ea0bdf2d54 libpayload: Add zero length packet support to UDC framework 
Some IN transfers must be terminated by an empty packet
because otherwise the host wouldn't know.

The zlp() function determines this requirement in
accordance to USB rules: If the transfer's size is aligned
to the maximum packet size, and the host expects a larger
transfer, add the empty packet as a hint.

BRANCH=none
BUG=none
TEST=USB device mode still works

Change-Id: Ia69f3d017f72a3a0e0b21bac72fe97be184c7daa
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: fd0e946e4948a74a9ed15a5eed6ce827b7672a56
Original-Change-Id: I8153cc5bd2ff1c88e383c1dbcddaf1bf72f9194c
Original-Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/250790
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/9784
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
 		2015-04-18 08:40:28 +02:00
..
arm/arch arm: Dump additional fault registers in abort handlers 2015-04-08 09:28:37 +02:00
arm64/arch arm64: Increase dma region size to 32MiB 2015-04-14 12:07:42 +02:00
arpa Refactor the endianness conversion functions and header files. 2012-11-08 19:49:51 +01:00
mips/arch libpayload: arch/mips: add virt/bus/phy_to_bus/phy/virt operations 2015-03-21 11:09:29 +01:00
pci libpayload: Add a few more PCI constants 2013-08-26 00:24:53 +02:00
storage libpayload: Change CONFIG_* to CONFIG_LP_* in the kconfig. 2014-08-05 18:44:08 +02:00
sys libpayload: Start using only internal and compiler headers. 2013-03-13 22:04:44 +01:00
udc libpayload: Add zero length packet support to UDC framework 2015-04-18 08:40:28 +02:00
usb libpayload: Add dwc2 usb driver 2015-04-14 10:42:54 +02:00
x86/arch libpayload: Add support for memory barriers 2015-03-19 23:24:16 +01:00
assert.h libpayload: Fix the format string of the assert macro. 2012-11-07 18:36:05 +01:00
cbfs.h libpayload: Provide selfboot() external declaration in a common file 2015-01-04 00:27:20 +01:00
cbfs_core.h CBFS: Automate ROM image layout and remove hardcoded offsets 2015-04-14 09:01:27 +02:00
cbfs_ram.h libpayload: expose cbfs ram functions 2013-12-12 22:22:12 +01:00
coreboot_tables.h libpayload: read register width from coreboot table 2015-04-17 09:53:54 +02:00
ctype.h Attached patch moves functions out of the huge libpayload.h into headers 2010-06-24 11:16:10 +00:00
die.h libpayload: Add a new "die" function to fatally signal programming errors. 2014-09-15 17:37:13 +02:00
endian.h libpayload: Expand setbits_le32() and fix readl() const-ness 2015-01-12 05:56:01 +01:00
errno.h Attached patch moves functions out of the huge libpayload.h into headers 2010-06-24 11:16:10 +00:00
exception.h libpayload: Rework exception hook interface 2015-01-09 07:05:15 +01:00
gdb.h libpayload: Add remote GDB support 2015-01-09 07:06:51 +01:00
getopt.h Since some people disapprove of white space cleanups mixed in regular commits 2010-04-27 06:56:47 +00:00
inttypes.h libpayload: Start using only internal and compiler headers. 2013-03-13 22:04:44 +01:00
ipchksum.h libpayload: Add a new "die" function to fatally signal programming errors. 2014-09-15 17:37:13 +02:00
kconfig.h libpayload: Change CONFIG_* to CONFIG_LP_* in the kconfig. 2014-08-05 18:44:08 +02:00
keycodes.h libpayload: Make keycode constants available outside of curses.h. 2013-03-18 20:45:48 +01:00
lar.h libpayload: Add LAR walking support 2008-05-07 20:34:02 +00:00
libpayload.h libpayload arm64: Add functions for reading memranges 2015-03-21 13:36:04 +01:00
limits.h libpayload: Improve compatibility 2011-07-16 11:09:28 +02:00
lzma.h LZMA: Add a version of ulzma which takes the input and output buffer sizes. 2014-08-10 22:29:51 +02:00
malloc.h libpayload: Provide atol(), malloc.h 2011-07-07 22:29:53 +02:00
multiboot_tables.h [PATCH] libpayload: Add multiboot support 2008-10-20 16:51:43 +00:00
panel.h libpayload: Add PDCurses and ncurses' libform/libmenu 2011-08-04 08:10:41 +02:00
pci.h libpayload: Add definitions for more config space registers. 2012-11-07 18:36:27 +01:00
queue.h libpayload: Add OpenBSD queue implementation 2015-03-19 23:23:36 +01:00
stdarg.h libpayload: Don't sneak in compiler includes 2013-04-18 02:50:28 +02:00
stddef.h ARM: API to Map Physical Address to Wipe Memory above 4GB 2014-12-09 18:39:34 +01:00
stdint.h libpayload: Add more integer limits 2013-06-27 14:48:08 +02:00
stdio.h libpayload: Add the format attribute to functions in stdio.h. 2012-11-07 18:36:14 +01:00
stdlib.h libpayload: provide basic 64bit division implementation 2015-03-21 01:39:59 +01:00
string.h libpayload: UTF-16LE to ASCII conversion 2015-03-20 09:59:48 +01:00
strings.h libpayload: Implement ffs() 2011-03-01 07:23:49 +00:00
swab.h libpayload: arch/mips: Add basic MIPS architecture support 2015-03-21 11:07:50 +01:00
sysinfo.h libpayload: Take flash parameters from coreboot 2015-04-17 09:21:12 +02:00
term.h libpayload: remove trailing whitespace and run dos2unix 2011-11-01 19:08:23 +01:00
unistd.h libpayload: Don't sneak in compiler includes 2013-04-18 02:50:28 +02:00
video_console.h Add coreboot framebuffer support to libpayload 2010-03-25 18:56:26 +00:00