| # SPDX-License-Identifier: MIT |
| # |
| # Copyright Pengutronix <yocto@pengutronix.de> |
| # |
| # Class to generate firmware files for use with the `panel-mipi-dbi` Linux |
| # driver. |
| # |
| # The firmware source file contains a list of commands to send to the display |
| # controller in order to initialize it: |
| # |
| # $ cat shineworld,lh133k.txt |
| # command 0x11 # exit sleep mode |
| # delay 120 |
| # |
| # # Enable color inversion |
| # command 0x21 # INVON |
| # ... |
| # |
| # A recipe to compile such a command list into a firmware blob for use with |
| # the `panel-mipi-dbi` driver looks something like this: |
| # |
| # $ cat panel-shineworld-lh133k.bb |
| # inherit panel-mipi-dbi |
| # |
| # SRC_URI = "file://${PANEL_FIRMWARE}" |
| # |
| # PANEL_FIRMWARE = "shineworld,lh133k.txt" |
| # ... |
| |
| DEPENDS = "panel-mipi-dbi-native" |
| |
| PANEL_FIRMWARE_BIN ?= "${@d.getVar('PANEL_FIRMWARE').removesuffix('.txt')}.bin" |
| |
| do_configure[noexec] = "1" |
| |
| do_compile () { |
| mipi-dbi-cmd \ |
| "${B}/${PANEL_FIRMWARE_BIN}" \ |
| "${UNPACKDIR}/${PANEL_FIRMWARE}" |
| } |
| |
| do_install () { |
| install -m 0644 -D \ |
| "${B}/${PANEL_FIRMWARE_BIN}" \ |
| "${D}${nonarch_base_libdir}/firmware/${PANEL_FIRMWARE_BIN}" |
| } |
| |
| FILES:${PN} = "${nonarch_base_libdir}/firmware/" |
