Commit Graph

14 Commits

Author SHA1 Message Date
Pieter De Gendt
96eee3bc5e modules: lvgl: Add a name to the work queue thread
Make it easier to debug/diagnose issues by explicitly naming the LVGL
thread.

Signed-off-by: Pieter De Gendt <pieter.degendt@basalte.be>
2025-07-29 11:27:38 +01:00
Felipe Neves
744ee2082e modules: lvgl: expose the lvgl workqueue to the user application
allowing user to submit their own work intems to it.

Signed-off-by: Felipe Neves <ryukokki.felipe@gmail.com>
2025-07-21 21:26:27 -04:00
Felipe Neves
e82b8d277b modules: lvgl: add automatic lv_timer_handler call
inside of its own thread when user enable it on
the LVGL Zephyr options menu, using this option makes
the calling of the lv_timer_handler driven by an internal
timer and thread. Options like priority and stack size
for this thread are exposed making it configurable by the
application.

Signed-off-by: Felipe Neves <ryukokki.felipe@gmail.com>

modules: lvgl: put LVGL core into a dedicated workqueue

Replacing the initial approach based on timers and semaphore

Signed-off-by: Felipe Neves <ryukokki.felipe@gmail.com>
2025-07-21 21:26:27 -04:00
Kate Wang
52e08918ff modules: lvgl: support the frame buffer address and stride alignment
Add support for the frame buffer address and stride alignment.
If user set the CONFIG_LV_DRAW_BUF_ALIGN to not be 4, the buffers
shall be allocated aoocrdingly.
If user set the CONFIG_LV_DRAW_BUF_STRIDE_ALIGN to not be 1, the
methods of flushing the display shall set the pitch accordingly.

Signed-off-by: Kate Wang <yumeng.wang@nxp.com>
2025-06-27 08:49:44 -10:00
Fabian Blatz
5cffb8e5a6 modules: lvgl: Register print callback after lv_init
Move initialization of the print callback handler after calling lv_init, as
the latter zeroes the global callback structure.

Signed-off-by: Fabian Blatz <fabianblatz@gmail.com>
2025-05-30 16:37:57 +02:00
Abderrahmane JARMOUNI
0be94452a9 modules: lvgl: add multi-display support in Zephyr
Add multi-display support in Zephyr ontop of LVGL which already supports
it.

This change allows for creating buffers and structures for each display
statically and automatically from deviceTree info, and call LV init
routines for each display

Signed-off-by: Abderrahmane JARMOUNI <git@jarmouni.me>
2025-05-08 12:24:21 +02:00
Camille BAUD
60914ac654 modules: lvgl: Introduce Greyscale support
This introduces support glue for L8 greyscale

Signed-off-by: Camille BAUD <mail@massdriver.space>
2025-03-12 14:05:14 +00:00
Haiyue Wang
f9bff7f32f modules: lvgl: Rename the VDB custom section Kconfig name
There are 4 Kconfig names about the "Draw Buffer". Rename 'VBD' to 'VDB'
in Kconfig option 'LV_Z_*VBD*_CUSTOM_SECTION' to make name consistent.

config LV_Z_VDB_ALIGN
	int "Rending buffer alignment"

config LV_Z_VBD_CUSTOM_SECTION
	bool "Link rendering buffers to custom section"

config LV_Z_DOUBLE_VDB
	bool "Use two rendering buffers"

config LV_Z_VDB_SIZE
	int "Rendering buffer size"
	default 100 if LV_Z_FULL_REFRESH

And the draw buffer definition is now:

	static uint8_t buf0[BUFFER_SIZE]
	#ifdef CONFIG_LV_Z_VDB_CUSTOM_SECTION
		Z_GENERIC_SECTION(.lvgl_buf)
	#endif
			__aligned(CONFIG_LV_Z_VDB_ALIGN);

Signed-off-by: Haiyue Wang <haiyuewa@163.com>
2025-01-06 17:13:29 +00:00
Fabian Blatz
23431193ef modules: lvgl: Update gluecode to v9.2
This patch updates the module gluecode to be compatible with LVGL version
9.2. This includes changes done to display and input driver initialization
  and draw buffer handling.

Signed-off-by: Fabian Blatz <fabianblatz@gmail.com>
2025-01-04 14:17:10 +01:00
Fabian Blatz
84c7f2fe0a modules: lvgl: Fix usage of LVGL log levels
Introduces a Kconfig symbol `LV_Z_LOG_LEVEL` because contrary to Zephyr the
numerical value of log levels in LVGL increases with severity. Also support
for the `LV_LOG_LEVEL_USER` is added.

Resolves issue #64351.

Signed-off-by: Fabian Blatz <fabianblatz@gmail.com>
2023-11-15 14:54:47 +01:00
Fabian Blatz
1896130bd8 modules: lvgl: fix initialization order depedencies
Removes the pseudo device prerequisite that the LVGL setup routine has been
executed before initialization. The pseudo devices are now registered at
the end of the LVGL setup routine, the driver is not concerned with
configuring the devices anymore. This also removes the need for enforcing
certain priorities within the same init level.

This resolves issue #62753.

Signed-off-by: Fabian Blatz <fabianblatz@gmail.com>
2023-09-18 20:37:43 +02:00
Fabio Baltieri
7140b6f9c1 modules: lvgl: initialize lvgl_heap_init from lvgl_init
Call lvgl_heap_init from lvgl_init rather than using two separate
SYS_INIT, this sensures that the heap is initialized correctly
regardless of the relation between CONFIG_KERNEL_INIT_PRIORITY_DEFAULT
and CONFIG_APPLICATION_INIT_PRIORITY.

Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
2023-09-08 09:43:24 +02:00
Fabian Blatz
5e5d9f481c modules: lvgl: Move lvgl kscan pointer handling to separate file
Moves lvgl pointer driver handling based on kscan to its own file, to ease
deletion when the usage of kscan for display touch input has been
deprecated.

Signed-off-by: Fabian Blatz <fabianblatz@gmail.com>
2023-08-29 10:17:52 +02:00
Fabian Blatz
2e2163c1bc modules: lvgl: Move gluecode back to zephyr main repo
Moves back the module specific gluecode into the main repository

Signed-off-by: Fabian Blatz <fabianblatz@gmail.com>
2023-08-16 10:57:12 +02:00