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-rw-r--r--quantum/painter/lvgl/qp_lvgl.c144
-rw-r--r--quantum/painter/lvgl/qp_lvgl.h25
-rw-r--r--quantum/painter/lvgl/rules.mk24
3 files changed, 193 insertions, 0 deletions
diff --git a/quantum/painter/lvgl/qp_lvgl.c b/quantum/painter/lvgl/qp_lvgl.c
new file mode 100644
index 0000000000..41ca3f98c2
--- /dev/null
+++ b/quantum/painter/lvgl/qp_lvgl.c
@@ -0,0 +1,144 @@
+// Copyright 2022 Jose Pablo Ramirez (@jpe230)
+// Copyright 2022 Nick Brassel (@tzarc)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "qp_lvgl.h"
+#include "timer.h"
+#include "deferred_exec.h"
+#include "lvgl.h"
+
+typedef struct lvgl_state_t {
+ uint8_t fnc_id; // Ideally this should be the pointer of the function to run
+ uint16_t delay_ms;
+ deferred_token defer_token;
+} lvgl_state_t;
+
+static deferred_executor_t lvgl_executors[2] = {0}; // For lv_tick_inc and lv_task_handler
+static lvgl_state_t lvgl_states[2] = {0}; // For lv_tick_inc and lv_task_handler
+
+painter_device_t selected_display = NULL;
+void * color_buffer = NULL;
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Quantum Painter LVGL Integration Internal: qp_lvgl_flush
+
+void qp_lvgl_flush(lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p) {
+ if (selected_display) {
+ uint32_t number_pixels = (area->x2 - area->x1 + 1) * (area->y2 - area->y1 + 1);
+ qp_viewport(selected_display, area->x1, area->y1, area->x2, area->y2);
+ qp_pixdata(selected_display, (void *)color_p, number_pixels);
+ qp_flush(selected_display);
+ lv_disp_flush_ready(disp);
+ }
+}
+
+static uint32_t tick_task_callback(uint32_t trigger_time, void *cb_arg) {
+ lvgl_state_t * state = (lvgl_state_t *)cb_arg;
+ static uint32_t last_tick = 0;
+ switch (state->fnc_id) {
+ case 0: {
+ uint32_t now = timer_read32();
+ lv_tick_inc(TIMER_DIFF_32(now, last_tick));
+ last_tick = now;
+ } break;
+ case 1:
+ lv_task_handler();
+ break;
+
+ default:
+ break;
+ }
+
+ // The tasks should run indefinitely
+ return state->delay_ms;
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Quantum Painter LVGL Integration API: qp_lvgl_attach
+
+bool qp_lvgl_attach(painter_device_t device) {
+ qp_dprintf("qp_lvgl_start: entry\n");
+ qp_lvgl_detach();
+
+ struct painter_driver_t *driver = (struct painter_driver_t *)device;
+ if (!driver->validate_ok) {
+ qp_dprintf("qp_lvgl_attach: fail (validation_ok == false)\n");
+ qp_lvgl_detach();
+ return false;
+ }
+
+ // Setting up the tasks
+ lvgl_state_t *lv_tick_inc_state = &lvgl_states[0];
+ lv_tick_inc_state->fnc_id = 0;
+ lv_tick_inc_state->delay_ms = 1;
+ lv_tick_inc_state->defer_token = defer_exec_advanced(lvgl_executors, 2, 1, tick_task_callback, lv_tick_inc_state);
+
+ if (lv_tick_inc_state->defer_token == INVALID_DEFERRED_TOKEN) {
+ qp_dprintf("qp_lvgl_attach: fail (could not set up qp_lvgl executor)\n");
+ qp_lvgl_detach();
+ return false;
+ }
+
+ lvgl_state_t *lv_task_handler_state = &lvgl_states[1];
+ lv_task_handler_state->fnc_id = 1;
+ lv_task_handler_state->delay_ms = 5;
+ lv_task_handler_state->defer_token = defer_exec_advanced(lvgl_executors, 2, 5, tick_task_callback, lv_task_handler_state);
+
+ if (lv_task_handler_state->defer_token == INVALID_DEFERRED_TOKEN) {
+ qp_dprintf("qp_lvgl_attach: fail (could not set up qp_lvgl executor)\n");
+ qp_lvgl_detach();
+ return false;
+ }
+
+ // Init LVGL
+ lv_init();
+
+ // Set up lvgl display buffer
+ static lv_disp_draw_buf_t draw_buf;
+ // Allocate a buffer for 1/10 screen size
+ const size_t count_required = driver->panel_width * driver->panel_height / 10;
+ color_buffer = color_buffer ? realloc(color_buffer, sizeof(lv_color_t) * count_required) : malloc(sizeof(lv_color_t) * count_required);
+ if (!color_buffer) {
+ qp_dprintf("qp_lvgl_attach: fail (could not set up memory buffer)\n");
+ qp_lvgl_detach();
+ return false;
+ }
+ memset(color_buffer, 0, sizeof(lv_color_t) * count_required);
+ // Initialize the display buffer.
+ lv_disp_draw_buf_init(&draw_buf, color_buffer, NULL, count_required);
+
+ selected_display = device;
+
+ // Setting up display driver
+ static lv_disp_drv_t disp_drv; /*Descriptor of a display driver*/
+ lv_disp_drv_init(&disp_drv); /*Basic initialization*/
+ disp_drv.flush_cb = qp_lvgl_flush; /*Set your driver function*/
+ disp_drv.draw_buf = &draw_buf; /*Assign the buffer to the display*/
+ disp_drv.hor_res = driver->panel_width; /*Set the horizontal resolution of the display*/
+ disp_drv.ver_res = driver->panel_height; /*Set the vertical resolution of the display*/
+ lv_disp_drv_register(&disp_drv); /*Finally register the driver*/
+
+ return true;
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Quantum Painter LVGL Integration API: qp_lvgl_detach
+
+void qp_lvgl_detach(void) {
+ for (int i = 0; i < 2; ++i) {
+ cancel_deferred_exec_advanced(lvgl_executors, 2, lvgl_states[i].defer_token);
+ }
+ if (color_buffer) {
+ free(color_buffer);
+ color_buffer = NULL;
+ }
+ selected_display = NULL;
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Quantum Painter LVGL Integration Internal: qp_lvgl_internal_tick
+
+void qp_lvgl_internal_tick(void) {
+ static uint32_t last_lvgl_exec = 0;
+ deferred_exec_advanced_task(lvgl_executors, 2, &last_lvgl_exec);
+}
diff --git a/quantum/painter/lvgl/qp_lvgl.h b/quantum/painter/lvgl/qp_lvgl.h
new file mode 100644
index 0000000000..d9ad5e8df1
--- /dev/null
+++ b/quantum/painter/lvgl/qp_lvgl.h
@@ -0,0 +1,25 @@
+// Copyright 2022 Jose Pablo Ramirez (@jpe230)
+// Copyright 2022 Nick Brassel (@tzarc)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "qp.h"
+#include "lvgl.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Quantum Painter - LVGL External API
+
+/**
+ * Sets up LVGL with the supplied display.
+ *
+ * @param device[in] the handle of the device to control
+ * @return true if init. of LVGL succeeded
+ * @return false if init. of LVGL failed
+ */
+bool qp_lvgl_attach(painter_device_t device);
+
+/**
+ * Disconnects LVGL from any attached display
+ */
+void qp_lvgl_detach(void);
diff --git a/quantum/painter/lvgl/rules.mk b/quantum/painter/lvgl/rules.mk
new file mode 100644
index 0000000000..50226941b3
--- /dev/null
+++ b/quantum/painter/lvgl/rules.mk
@@ -0,0 +1,24 @@
+# LVGL Integration
+
+OPT_DEFS += -DQUANTUM_PAINTER_LVGL_INTEGRATION_ENABLE -DLV_CONF_INCLUDE_SIMPLE
+DEFERRED_EXEC_ENABLE := yes
+
+LVGL_DIR_NAME = lvgl
+LVGL_DIR = $(LIB_DIR)
+LVGL_PATH = $(LVGL_DIR)/$(LVGL_DIR_NAME)
+
+COMMON_VPATH += $(PLATFORM_PATH) \
+ $(QUANTUM_DIR)/painter/$(LVGL_DIR_NAME) \
+ $(LVGL_PATH)
+
+include $(LVGL_PATH)/src/extra/extra.mk
+include $(LVGL_PATH)/src/core/lv_core.mk
+include $(LVGL_PATH)/src/draw/lv_draw.mk
+include $(LVGL_PATH)/src/draw/sw/lv_draw_sw.mk
+include $(LVGL_PATH)/src/font/lv_font.mk
+include $(LVGL_PATH)/src/hal/lv_hal.mk
+include $(LVGL_PATH)/src/misc/lv_misc.mk
+include $(LVGL_PATH)/src/widgets/lv_widgets.mk
+
+SRC += qp_lvgl.c \
+ $(CSRCS)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 11:27:02 +0000