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LVGL 9.2 port (draft — tcan v2.0 migration) #206

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LVGL 9.2 port (draft — tcan v2.0 migration) #206

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be56b12
feat(04-02): vendor LVGL 9.2.2 + lvgl-sys bindgen against 9.x
mLupine Apr 13, 2026
4861b1b
feat(04-02): port lvgl crate safe wrapper to LVGL 9.2 (minimum-viable)
mLupine Apr 13, 2026
2ea8ccd
fix(04-02): teach lvgl-sys/build.rs to find xtensa newlib headers
mLupine Apr 13, 2026
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19 changes: 19 additions & 0 deletions .cargo/config.toml
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Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@
# Inner workspace config for the mLupine lv_binding_rust fork.
#
# The parent workspace (lupin-esp32-fw/.cargo/config.toml) pins
# `[build] target = "xtensa-esp32s3-espidf"` so every cargo invocation under
# that tree cross-compiles for the ESP32-S3. Inside this nested workspace we
# want to keep the *option* to cross-compile (Plan 04-02 Task 3 verifies the
# fork compiles for xtensa-esp32s3-espidf) but the default `cargo build` from
# inside the fork builds for the host so contributors can iterate quickly.

# No default [build].target -- inherits host target unless --target is given.

[target.xtensa-esp32s3-espidf]
linker = "ldproxy"
runner = "espflash flash --monitor"
rustflags = ["--cfg", "espidf_time64"]

[unstable]
# Cross-compiles for xtensa need build-std (no prebuilt std for the target).
build-std = ["std", "panic_abort"]
7 changes: 0 additions & 7 deletions .gitmodules
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24 changes: 15 additions & 9 deletions lvgl-sys/Cargo.toml
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
[package]
name = "lvgl-sys"
description = "Raw bindings to the LVGL C library."
version = "0.6.2"
description = "Raw bindings to the LVGL C library (mLupine fork: LVGL 9.2.x)."
version = "0.6.2-mLupine-lvgl-9"
authors = ["Rafael Caricio <crates.lvgl-sys@caric.io>", "Nia Espera <a5b6@riseup.net>"]
edition = "2021"
license = "MIT"
Expand All @@ -13,12 +13,12 @@ keywords = ["littlevgl", "lvgl"]
build = "build.rs"
links = "lvgl"
exclude = [
"vendor/lvgl/demos",
"vendor/lvgl/tests",
"vendor/lvgl/examples",
"vendor/lvgl/docs",
"vendor/lvgl/scripts",
"vendor/lvgl/env_support",
"vendor/lvgl-9.2/demos",
"vendor/lvgl-9.2/tests",
"vendor/lvgl-9.2/examples",
"vendor/lvgl-9.2/docs",
"vendor/lvgl-9.2/scripts",
"vendor/lvgl-9.2/env_support",
]

[lib]
Expand All @@ -32,8 +32,14 @@ cc = "1.0.79"
bindgen = "0.65.1"

[features]
# LVGL 9.2 ships a single config file (vendor/include-9.2/lv_conf.h); no
# DEP_LV_CONFIG_PATH switching, so use-vendored-config is now the default.
use-vendored-config = []
# Legacy lv_drivers (SDL/Linux) backends -- not used on ESP-IDF v6 path
# (esp_lvgl_port supplies flush). Kept as a no-op feature for Cargo.toml
# back-compat with existing dependents.
drivers = []
# LVGL 9 owns the tick internally via lv_tick_inc + esp_lvgl_port; these
# features are retained as no-ops.
rust_timer = []
# if LV_TICK_CUSTOM = 1, then lv_tick_inc function is unavailable
custom_timer = []
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