140 lines
3.7 KiB
C
140 lines
3.7 KiB
C
/*
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* Copyright (c) 2019 Jan Van Winkel <jan.van_winkel@dxplore.eu>
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* Copyright 2023 NXP
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/kernel.h>
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#include <errno.h>
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#include "lvgl_display.h"
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#ifdef CONFIG_LV_Z_FLUSH_THREAD
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K_SEM_DEFINE(flush_complete, 0, 1);
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/* Message queue will only ever need to queue one message */
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K_MSGQ_DEFINE(flush_queue, sizeof(struct lvgl_display_flush), 1, 1);
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void lvgl_flush_thread_entry(void *arg1, void *arg2, void *arg3)
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{
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struct lvgl_display_flush flush;
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struct lvgl_disp_data *data;
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while (1) {
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k_msgq_get(&flush_queue, &flush, K_FOREVER);
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data = (struct lvgl_disp_data *)flush.disp_drv->user_data;
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display_write(data->display_dev, flush.x, flush.y, &flush.desc,
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flush.buf);
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lv_disp_flush_ready(flush.disp_drv);
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k_sem_give(&flush_complete);
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}
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}
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K_THREAD_DEFINE(lvgl_flush_thread, CONFIG_LV_Z_FLUSH_THREAD_STACK_SIZE,
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lvgl_flush_thread_entry, NULL, NULL, NULL,
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K_PRIO_COOP(CONFIG_LV_Z_FLUSH_THREAD_PRIO), 0, 0);
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void lvgl_wait_cb(lv_disp_drv_t *disp_drv)
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{
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k_sem_take(&flush_complete, K_FOREVER);
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}
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#endif /* CONFIG_LV_Z_FLUSH_THREAD */
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#ifdef CONFIG_LV_Z_USE_ROUNDER_CB
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void lvgl_rounder_cb(lv_disp_drv_t *disp_drv, lv_area_t *area)
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{
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#if CONFIG_LV_Z_AREA_X_ALIGNMENT_WIDTH != 1
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__ASSERT(POPCOUNT(CONFIG_LV_Z_AREA_X_ALIGNMENT_WIDTH) == 1, "Invalid X alignment width");
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area->x1 &= ~(CONFIG_LV_Z_AREA_X_ALIGNMENT_WIDTH - 1);
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area->x2 |= (CONFIG_LV_Z_AREA_X_ALIGNMENT_WIDTH - 1);
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#endif
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#if CONFIG_LV_Z_AREA_Y_ALIGNMENT_WIDTH != 1
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__ASSERT(POPCOUNT(CONFIG_LV_Z_AREA_Y_ALIGNMENT_WIDTH) == 1, "Invalid Y alignment width");
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area->y1 &= ~(CONFIG_LV_Z_AREA_Y_ALIGNMENT_WIDTH - 1);
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area->y2 |= (CONFIG_LV_Z_AREA_Y_ALIGNMENT_WIDTH - 1);
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#endif
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}
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#else
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#define lvgl_rounder_cb NULL
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#endif
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int set_lvgl_rendering_cb(lv_disp_drv_t *disp_drv)
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{
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int err = 0;
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struct lvgl_disp_data *data = (struct lvgl_disp_data *)disp_drv->user_data;
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#ifdef CONFIG_LV_Z_FLUSH_THREAD
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disp_drv->wait_cb = lvgl_wait_cb;
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#endif
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switch (data->cap.current_pixel_format) {
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case PIXEL_FORMAT_ARGB_8888:
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disp_drv->flush_cb = lvgl_flush_cb_32bit;
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disp_drv->rounder_cb = lvgl_rounder_cb;
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#ifdef CONFIG_LV_COLOR_DEPTH_32
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disp_drv->set_px_cb = NULL;
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#else
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disp_drv->set_px_cb = lvgl_set_px_cb_32bit;
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#endif
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break;
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case PIXEL_FORMAT_RGB_888:
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disp_drv->flush_cb = lvgl_flush_cb_24bit;
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disp_drv->rounder_cb = lvgl_rounder_cb;
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disp_drv->set_px_cb = lvgl_set_px_cb_24bit;
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break;
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case PIXEL_FORMAT_RGB_565:
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case PIXEL_FORMAT_BGR_565:
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disp_drv->flush_cb = lvgl_flush_cb_16bit;
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disp_drv->rounder_cb = lvgl_rounder_cb;
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#ifdef CONFIG_LV_COLOR_DEPTH_16
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disp_drv->set_px_cb = NULL;
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#else
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disp_drv->set_px_cb = lvgl_set_px_cb_16bit;
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#endif
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break;
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case PIXEL_FORMAT_MONO01:
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case PIXEL_FORMAT_MONO10:
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disp_drv->flush_cb = lvgl_flush_cb_mono;
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disp_drv->rounder_cb = lvgl_rounder_cb_mono;
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disp_drv->set_px_cb = lvgl_set_px_cb_mono;
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break;
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default:
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disp_drv->flush_cb = NULL;
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disp_drv->rounder_cb = NULL;
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disp_drv->set_px_cb = NULL;
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err = -ENOTSUP;
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break;
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}
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return err;
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}
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void lvgl_flush_display(struct lvgl_display_flush *request)
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{
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#ifdef CONFIG_LV_Z_FLUSH_THREAD
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/*
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* LVGL will only start a flush once the previous one is complete,
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* so we can reset the flush state semaphore here.
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*/
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k_sem_reset(&flush_complete);
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k_msgq_put(&flush_queue, request, K_FOREVER);
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/* Explicitly yield, in case the calling thread is a cooperative one */
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k_yield();
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#else
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/* Write directly to the display */
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struct lvgl_disp_data *data =
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(struct lvgl_disp_data *)request->disp_drv->user_data;
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display_write(data->display_dev, request->x, request->y,
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&request->desc, request->buf);
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lv_disp_flush_ready(request->disp_drv);
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#endif
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}
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