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xiaozhi-esp32/main/display/st7789_display.cc
Terrence 37773c9c15 fix compile warnings
2024-12-03 12:33:33 +08:00

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11 KiB
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#include "st7789_display.h"
#include "font_awesome_symbols.h"
#include <esp_log.h>
#include <esp_err.h>
#include <driver/ledc.h>
#include <vector>
#define TAG "St7789Display"
#define LCD_LEDC_CH LEDC_CHANNEL_0
#define ST7789_LVGL_TICK_PERIOD_MS 2
#define ST7789_LVGL_TASK_MAX_DELAY_MS 20
#define ST7789_LVGL_TASK_MIN_DELAY_MS 1
#define ST7789_LVGL_TASK_STACK_SIZE (4 * 1024)
#define ST7789_LVGL_TASK_PRIORITY 10
LV_FONT_DECLARE(font_puhui_14_1);
LV_FONT_DECLARE(font_awesome_30_1);
LV_FONT_DECLARE(font_awesome_14_1);
static lv_disp_drv_t disp_drv;
static void st7789_lvgl_flush_cb(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t *color_map)
{
esp_lcd_panel_handle_t panel_handle = (esp_lcd_panel_handle_t)drv->user_data;
int offsetx1 = area->x1;
int offsetx2 = area->x2;
int offsety1 = area->y1;
int offsety2 = area->y2;
// copy a buffer's content to a specific area of the display
esp_lcd_panel_draw_bitmap(panel_handle, offsetx1, offsety1, offsetx2 + 1, offsety2 + 1, color_map);
lv_disp_flush_ready(&disp_drv);
}
/* Rotate display and touch, when rotated screen in LVGL. Called when driver parameters are updated. */
static void st7789_lvgl_port_update_callback(lv_disp_drv_t *drv)
{
esp_lcd_panel_handle_t panel_handle = (esp_lcd_panel_handle_t)drv->user_data;
switch (drv->rotated)
{
case LV_DISP_ROT_NONE:
// Rotate LCD display
esp_lcd_panel_swap_xy(panel_handle, false);
esp_lcd_panel_mirror(panel_handle, true, false);
#if CONFIG_ST7789_LCD_TOUCH_ENABLED
// Rotate LCD touch
esp_lcd_touch_set_mirror_y(tp, false);
esp_lcd_touch_set_mirror_x(tp, false);
#endif
break;
case LV_DISP_ROT_90:
// Rotate LCD display
esp_lcd_panel_swap_xy(panel_handle, true);
esp_lcd_panel_mirror(panel_handle, true, true);
#if CONFIG_ST7789_LCD_TOUCH_ENABLED
// Rotate LCD touch
esp_lcd_touch_set_mirror_y(tp, false);
esp_lcd_touch_set_mirror_x(tp, false);
#endif
break;
case LV_DISP_ROT_180:
// Rotate LCD display
esp_lcd_panel_swap_xy(panel_handle, false);
esp_lcd_panel_mirror(panel_handle, false, true);
#if CONFIG_ST7789_LCD_TOUCH_ENABLED
// Rotate LCD touch
esp_lcd_touch_set_mirror_y(tp, false);
esp_lcd_touch_set_mirror_x(tp, false);
#endif
break;
case LV_DISP_ROT_270:
// Rotate LCD display
esp_lcd_panel_swap_xy(panel_handle, true);
esp_lcd_panel_mirror(panel_handle, false, false);
#if CONFIG_ST7789_LCD_TOUCH_ENABLED
// Rotate LCD touch
esp_lcd_touch_set_mirror_y(tp, false);
esp_lcd_touch_set_mirror_x(tp, false);
#endif
break;
}
}
void St7789Display::LvglTask() {
ESP_LOGI(TAG, "Starting LVGL task");
uint32_t task_delay_ms = ST7789_LVGL_TASK_MAX_DELAY_MS;
while (1)
{
// Lock the mutex due to the LVGL APIs are not thread-safe
if (Lock())
{
task_delay_ms = lv_timer_handler();
Unlock();
}
if (task_delay_ms > ST7789_LVGL_TASK_MAX_DELAY_MS)
{
task_delay_ms = ST7789_LVGL_TASK_MAX_DELAY_MS;
}
else if (task_delay_ms < ST7789_LVGL_TASK_MIN_DELAY_MS)
{
task_delay_ms = ST7789_LVGL_TASK_MIN_DELAY_MS;
}
vTaskDelay(pdMS_TO_TICKS(task_delay_ms));
}
}
St7789Display::St7789Display(esp_lcd_panel_io_handle_t panel_io, esp_lcd_panel_handle_t panel,
gpio_num_t backlight_pin, bool backlight_output_invert,
int width, int height, int offset_x, int offset_y, bool mirror_x, bool mirror_y, bool swap_xy)
: panel_io_(panel_io), panel_(panel), backlight_pin_(backlight_pin), backlight_output_invert_(backlight_output_invert),
mirror_x_(mirror_x), mirror_y_(mirror_y), swap_xy_(swap_xy) {
width_ = width;
height_ = height;
offset_x_ = offset_x;
offset_y_ = offset_y;
InitializeBacklight(backlight_pin);
// draw white
std::vector<uint16_t> buffer(width_, 0xFFFF);
for (int y = 0; y < height_; y++) {
esp_lcd_panel_draw_bitmap(panel_, 0, y, width_, y + 1, buffer.data());
}
// Set the display to on
ESP_LOGI(TAG, "Turning display on");
ESP_ERROR_CHECK(esp_lcd_panel_disp_on_off(panel_, true));
ESP_LOGI(TAG, "Initialize LVGL library");
lv_init();
// alloc draw buffers used by LVGL
static lv_disp_draw_buf_t disp_buf; // contains internal graphic buffer(s) called draw buffer(s)
// it's recommended to choose the size of the draw buffer(s) to be at least 1/10 screen sized
lv_color_t *buf1 = (lv_color_t *)heap_caps_malloc(width_ * 10 * sizeof(lv_color_t), MALLOC_CAP_DMA);
assert(buf1);
lv_color_t *buf2 = (lv_color_t *)heap_caps_malloc(width_ * 10 * sizeof(lv_color_t), MALLOC_CAP_DMA);
assert(buf2);
// initialize LVGL draw buffers
lv_disp_draw_buf_init(&disp_buf, buf1, buf2, width_ * 10);
ESP_LOGI(TAG, "Register display driver to LVGL");
lv_disp_drv_init(&disp_drv);
disp_drv.hor_res = width_;
disp_drv.ver_res = height_;
disp_drv.offset_x = offset_x_;
disp_drv.offset_y = offset_y_;
disp_drv.flush_cb = st7789_lvgl_flush_cb;
disp_drv.drv_update_cb = st7789_lvgl_port_update_callback;
disp_drv.draw_buf = &disp_buf;
disp_drv.user_data = panel_;
lv_disp_drv_register(&disp_drv);
ESP_LOGI(TAG, "Install LVGL tick timer");
// Tick interface for LVGL (using esp_timer to generate 2ms periodic event)
const esp_timer_create_args_t lvgl_tick_timer_args = {
.callback = [](void* arg) {
lv_tick_inc(ST7789_LVGL_TICK_PERIOD_MS);
},
.arg = NULL,
.dispatch_method = ESP_TIMER_TASK,
.name = "LVGL Tick Timer",
.skip_unhandled_events = false
};
ESP_ERROR_CHECK(esp_timer_create(&lvgl_tick_timer_args, &lvgl_tick_timer_));
ESP_ERROR_CHECK(esp_timer_start_periodic(lvgl_tick_timer_, ST7789_LVGL_TICK_PERIOD_MS * 1000));
lvgl_mutex_ = xSemaphoreCreateRecursiveMutex();
assert(lvgl_mutex_ != nullptr);
ESP_LOGI(TAG, "Create LVGL task");
xTaskCreate([](void *arg) {
static_cast<St7789Display*>(arg)->LvglTask();
vTaskDelete(NULL);
}, "LVGL", ST7789_LVGL_TASK_STACK_SIZE, this, ST7789_LVGL_TASK_PRIORITY, NULL);
SetBacklight(100);
SetupUI();
}
St7789Display::~St7789Display() {
ESP_ERROR_CHECK(esp_timer_stop(lvgl_tick_timer_));
ESP_ERROR_CHECK(esp_timer_delete(lvgl_tick_timer_));
if (content_ != nullptr) {
lv_obj_del(content_);
}
if (status_bar_ != nullptr) {
lv_obj_del(status_bar_);
}
if (side_bar_ != nullptr) {
lv_obj_del(side_bar_);
}
if (container_ != nullptr) {
lv_obj_del(container_);
}
if (panel_ != nullptr) {
esp_lcd_panel_del(panel_);
}
if (panel_io_ != nullptr) {
esp_lcd_panel_io_del(panel_io_);
}
vSemaphoreDelete(lvgl_mutex_);
}
void St7789Display::InitializeBacklight(gpio_num_t backlight_pin) {
if (backlight_pin == GPIO_NUM_NC) {
return;
}
// Setup LEDC peripheral for PWM backlight control
const ledc_channel_config_t backlight_channel = {
.gpio_num = backlight_pin,
.speed_mode = LEDC_LOW_SPEED_MODE,
.channel = LCD_LEDC_CH,
.intr_type = LEDC_INTR_DISABLE,
.timer_sel = LEDC_TIMER_0,
.duty = 0,
.hpoint = 0,
.flags = {
.output_invert = backlight_output_invert_,
}
};
const ledc_timer_config_t backlight_timer = {
.speed_mode = LEDC_LOW_SPEED_MODE,
.duty_resolution = LEDC_TIMER_10_BIT,
.timer_num = LEDC_TIMER_0,
.freq_hz = 5000,
.clk_cfg = LEDC_AUTO_CLK,
.deconfigure = false
};
ESP_ERROR_CHECK(ledc_timer_config(&backlight_timer));
ESP_ERROR_CHECK(ledc_channel_config(&backlight_channel));
}
void St7789Display::SetBacklight(uint8_t brightness) {
if (backlight_pin_ == GPIO_NUM_NC) {
return;
}
if (brightness > 100) {
brightness = 100;
}
ESP_LOGI(TAG, "Setting LCD backlight: %d%%", brightness);
// LEDC resolution set to 10bits, thus: 100% = 1023
uint32_t duty_cycle = (1023 * brightness) / 100;
ESP_ERROR_CHECK(ledc_set_duty(LEDC_LOW_SPEED_MODE, LCD_LEDC_CH, duty_cycle));
ESP_ERROR_CHECK(ledc_update_duty(LEDC_LOW_SPEED_MODE, LCD_LEDC_CH));
}
bool St7789Display::Lock(int timeout_ms) {
// Convert timeout in milliseconds to FreeRTOS ticks
// If `timeout_ms` is set to 0, the program will block until the condition is met
const TickType_t timeout_ticks = (timeout_ms == 0) ? portMAX_DELAY : pdMS_TO_TICKS(timeout_ms);
return xSemaphoreTakeRecursive(lvgl_mutex_, timeout_ticks) == pdTRUE;
}
void St7789Display::Unlock() {
xSemaphoreGiveRecursive(lvgl_mutex_);
}
void St7789Display::SetupUI() {
DisplayLockGuard lock(this);
auto screen = lv_disp_get_scr_act(lv_disp_get_default());
lv_obj_set_style_text_font(screen, &font_puhui_14_1, 0);
lv_obj_set_style_text_color(screen, lv_color_black(), 0);
/* Container */
container_ = lv_obj_create(screen);
lv_obj_set_size(container_, LV_HOR_RES, LV_VER_RES);
lv_obj_set_flex_flow(container_, LV_FLEX_FLOW_COLUMN);
lv_obj_set_style_pad_all(container_, 0, 0);
lv_obj_set_style_border_width(container_, 0, 0);
lv_obj_set_style_pad_row(container_, 0, 0);
/* Status bar */
status_bar_ = lv_obj_create(container_);
lv_obj_set_size(status_bar_, LV_HOR_RES, 18);
lv_obj_set_style_radius(status_bar_, 0, 0);
/* Content */
content_ = lv_obj_create(container_);
lv_obj_set_scrollbar_mode(content_, LV_SCROLLBAR_MODE_OFF);
lv_obj_set_style_radius(content_, 0, 0);
lv_obj_set_width(content_, LV_HOR_RES);
lv_obj_set_flex_grow(content_, 1);
emotion_label_ = lv_label_create(content_);
lv_obj_set_style_text_font(emotion_label_, &font_awesome_30_1, 0);
lv_label_set_text(emotion_label_, FONT_AWESOME_AI_CHIP);
lv_obj_center(emotion_label_);
/* Status bar */
lv_obj_set_flex_flow(status_bar_, LV_FLEX_FLOW_ROW);
lv_obj_set_style_pad_all(status_bar_, 0, 0);
lv_obj_set_style_border_width(status_bar_, 0, 0);
lv_obj_set_style_pad_column(status_bar_, 0, 0);
network_label_ = lv_label_create(status_bar_);
lv_label_set_text(network_label_, "");
lv_obj_set_style_text_font(network_label_, &font_awesome_14_1, 0);
notification_label_ = lv_label_create(status_bar_);
lv_obj_set_flex_grow(notification_label_, 1);
lv_obj_set_style_text_align(notification_label_, LV_TEXT_ALIGN_CENTER, 0);
lv_label_set_text(notification_label_, "通知");
lv_obj_add_flag(notification_label_, LV_OBJ_FLAG_HIDDEN);
status_label_ = lv_label_create(status_bar_);
lv_obj_set_flex_grow(status_label_, 1);
lv_label_set_text(status_label_, "正在初始化");
lv_obj_set_style_text_align(status_label_, LV_TEXT_ALIGN_CENTER, 0);
mute_label_ = lv_label_create(status_bar_);
lv_label_set_text(mute_label_, "");
lv_obj_set_style_text_font(mute_label_, &font_awesome_14_1, 0);
battery_label_ = lv_label_create(status_bar_);
lv_label_set_text(battery_label_, "");
lv_obj_set_style_text_font(battery_label_, &font_awesome_14_1, 0);
}
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