пт, 5 січ. 2024 р. о 18:03 Caleb Connolly <caleb.conno...@linaro.org> пише: > > With the relatively new button API in U-Boot, it's now much easier to > model the common usecase of mapping arbitrary actions to different > buttons during boot - for example entering fastboot mode, setting some > additional kernel cmdline arguments, or booting with a custom recovery > ramdisk, to name a few. > > Historically, this functionality has been implemented in board code, > making it fixed for a given U-Boot binary and requiring the code be > duplicated and modified for every board. > > Implement a generic abstraction to run an arbitrary command during boot > when a specific button is pressed. The button -> command mapping is > configured via environment variables with the following format: > > button_cmd_N_name=<button label> > button_cmd_N=<command to run> > > Where N is the mapping number starting from 0. For example: > > button_cmd_0_name=vol_down > button_cmd_0=fastboot usb 0 > > This will cause the device to enter fastboot mode if volume down is held > during boot. > > After we enter the cli loop the button commands are no longer valid, > this allows the buttons to additionally be used for navigating a boot > menu. > > Signed-off-by: Caleb Connolly <caleb.conno...@linaro.org> > --- > boot/Kconfig | 14 +++++++ > common/Makefile | 1 + > common/button_cmd.c | 83 +++++++++++++++++++++++++++++++++++++++ > common/main.c | 3 ++ > doc/usage/environment.rst | 4 ++ > include/button.h | 9 +++++ > 6 files changed, 114 insertions(+) > create mode 100644 common/button_cmd.c > I wonder how I lived without this patch! I hope to see it in the mainline ASAP.
Tested-by: Svyatoslav Ryhel <clamo...@gmail.com> # Tegra30
