Rdzleo
f9dc7d4861
1. 按键驱动重构：GPIO中断+手动去抖 → iot_button组件（单击/双击/长按） 2. 新增key_nav按键导航管理器：上下文状态机 + Set界面焦点蓝色边框高亮 3. 移除所有触摸手势/点击事件（ScreenHome/ScreenImg/ScreenSet） 4. 应援灯颜色切换优化：DISPOFF→直接写GRAM→DISPON，消除分band刷新 5. 亮度调节按键化：BOOT +10% / KEY -10% / KEY长按退出 6. 休眠管理适配：按键唤醒统一由key_nav处理 7. 新增迁移总结文档 docs/touch-to-button-migration.md Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
436 lines
16 KiB
C
436 lines
16 KiB
C
#include "gpio.h"
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#include "esp_lvgl_port.h"
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#include "esp_lcd_st77916.h"
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#include "esp_err.h"
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#include "esp_log.h"
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#include "lcd.h"
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#include "esp_lcd_touch_cst816s.h"
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#include <string.h>
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#include "esp_heap_caps.h"
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static lv_disp_t * disp_handle = NULL;
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static esp_lcd_panel_handle_t panel_handle = NULL;
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static esp_lcd_panel_io_handle_t io_handle = NULL;
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static esp_lcd_touch_handle_t touch_handle;
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static esp_lcd_panel_io_handle_t tp_io_handle = NULL;
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// 从参考项目 spi_lcd 提取的正确LCD初始化命令（匹配当前LCD面板硬件）
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static const st77916_lcd_init_cmd_t lcd_init_cmds[] = {
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{0xF0, (uint8_t[]){0x28}, 1, 0},
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{0xF2, (uint8_t[]){0x28}, 1, 0},
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{0x73, (uint8_t[]){0xF0}, 1, 0},
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{0x7C, (uint8_t[]){0xD1}, 1, 0},
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{0x83, (uint8_t[]){0xE0}, 1, 0},
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{0x84, (uint8_t[]){0x61}, 1, 0},
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{0xF2, (uint8_t[]){0x82}, 1, 0},
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{0xF0, (uint8_t[]){0x00}, 1, 0},
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{0xF0, (uint8_t[]){0x01}, 1, 0},
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{0xF1, (uint8_t[]){0x01}, 1, 0},
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{0xB0, (uint8_t[]){0x5E}, 1, 0},
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{0xB1, (uint8_t[]){0x55}, 1, 0},
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{0xB2, (uint8_t[]){0x24}, 1, 0},
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{0xB3, (uint8_t[]){0x01}, 1, 0},
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{0xB4, (uint8_t[]){0x87}, 1, 0},
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{0xB5, (uint8_t[]){0x44}, 1, 0},
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{0xB6, (uint8_t[]){0x8B}, 1, 0},
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{0xB7, (uint8_t[]){0x40}, 1, 0},
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{0xB8, (uint8_t[]){0x86}, 1, 0},
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{0xB9, (uint8_t[]){0x15}, 1, 0},
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{0xBA, (uint8_t[]){0x00}, 1, 0},
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{0xBB, (uint8_t[]){0x08}, 1, 0},
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{0xBC, (uint8_t[]){0x08}, 1, 0},
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{0xBD, (uint8_t[]){0x00}, 1, 0},
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{0xBE, (uint8_t[]){0x00}, 1, 0},
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{0xBF, (uint8_t[]){0x07}, 1, 0},
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{0xC0, (uint8_t[]){0x80}, 1, 0},
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{0xC1, (uint8_t[]){0x10}, 1, 0},
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{0xC2, (uint8_t[]){0x37}, 1, 0},
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{0xC3, (uint8_t[]){0x80}, 1, 0},
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{0xC4, (uint8_t[]){0x10}, 1, 0},
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{0xC5, (uint8_t[]){0x37}, 1, 0},
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{0xC6, (uint8_t[]){0xA9}, 1, 0},
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{0xC7, (uint8_t[]){0x41}, 1, 0},
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{0xC8, (uint8_t[]){0x01}, 1, 0},
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{0xC9, (uint8_t[]){0xA9}, 1, 0},
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{0xCA, (uint8_t[]){0x41}, 1, 0},
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{0xCB, (uint8_t[]){0x01}, 1, 0},
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{0xCC, (uint8_t[]){0x7F}, 1, 0},
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{0xCD, (uint8_t[]){0x7F}, 1, 0},
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{0xCE, (uint8_t[]){0xFF}, 1, 0},
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{0xD0, (uint8_t[]){0x91}, 1, 0},
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{0xD1, (uint8_t[]){0x68}, 1, 0},
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{0xD2, (uint8_t[]){0x68}, 1, 0},
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{0xF5, (uint8_t[]){0x00, 0xA5}, 2, 0},
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{0xDD, (uint8_t[]){0x40}, 1, 0},
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{0xDE, (uint8_t[]){0x40}, 1, 0},
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{0xF1, (uint8_t[]){0x10}, 1, 0},
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{0xF0, (uint8_t[]){0x00}, 1, 0},
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{0xF0, (uint8_t[]){0x02}, 1, 0},
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{0xE0, (uint8_t[]){0xF0, 0x10, 0x18, 0x0D, 0x0C, 0x38, 0x3E, 0x44, 0x51, 0x39, 0x15, 0x15, 0x30, 0x34}, 14, 0},
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{0xE1, (uint8_t[]){0xF0, 0x0F, 0x17, 0x0D, 0x0B, 0x07, 0x3E, 0x33, 0x51, 0x39, 0x15, 0x15, 0x30, 0x34}, 14, 0},
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{0xF0, (uint8_t[]){0x10}, 1, 0},
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{0xF3, (uint8_t[]){0x10}, 1, 0},
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{0xE0, (uint8_t[]){0x08}, 1, 0},
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{0xE1, (uint8_t[]){0x00}, 1, 0},
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{0xE2, (uint8_t[]){0x00}, 1, 0},
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{0xE3, (uint8_t[]){0x00}, 1, 0},
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{0xE4, (uint8_t[]){0xE0}, 1, 0},
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{0xE5, (uint8_t[]){0x06}, 1, 0},
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{0xE6, (uint8_t[]){0x21}, 1, 0},
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{0xE7, (uint8_t[]){0x03}, 1, 0},
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{0xE8, (uint8_t[]){0x05}, 1, 0},
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{0xE9, (uint8_t[]){0x02}, 1, 0},
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{0xEA, (uint8_t[]){0xE9}, 1, 0},
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{0xEB, (uint8_t[]){0x00}, 1, 0},
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{0xEC, (uint8_t[]){0x00}, 1, 0},
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{0xED, (uint8_t[]){0x14}, 1, 0},
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{0xEE, (uint8_t[]){0xFF}, 1, 0},
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{0xEF, (uint8_t[]){0x00}, 1, 0},
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{0xF8, (uint8_t[]){0xFF}, 1, 0},
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{0xF9, (uint8_t[]){0x00}, 1, 0},
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{0xFA, (uint8_t[]){0x00}, 1, 0},
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{0xFB, (uint8_t[]){0x30}, 1, 0},
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{0xFC, (uint8_t[]){0x00}, 1, 0},
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{0xFD, (uint8_t[]){0x00}, 1, 0},
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{0xFE, (uint8_t[]){0x00}, 1, 0},
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{0xFF, (uint8_t[]){0x00}, 1, 0},
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{0x60, (uint8_t[]){0x40}, 1, 0},
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{0x61, (uint8_t[]){0x05}, 1, 0},
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{0x62, (uint8_t[]){0x00}, 1, 0},
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{0x63, (uint8_t[]){0x42}, 1, 0},
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{0x64, (uint8_t[]){0xDA}, 1, 0},
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{0x65, (uint8_t[]){0x00}, 1, 0},
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{0x66, (uint8_t[]){0x00}, 1, 0},
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{0x67, (uint8_t[]){0x00}, 1, 0},
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{0x68, (uint8_t[]){0x00}, 1, 0},
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{0x69, (uint8_t[]){0x00}, 1, 0},
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{0x6A, (uint8_t[]){0x00}, 1, 0},
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{0x6B, (uint8_t[]){0x00}, 1, 0},
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{0x70, (uint8_t[]){0x40}, 1, 0},
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{0x71, (uint8_t[]){0x04}, 1, 0},
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{0x72, (uint8_t[]){0x00}, 1, 0},
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{0x73, (uint8_t[]){0x42}, 1, 0},
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{0x74, (uint8_t[]){0xD9}, 1, 0},
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{0x75, (uint8_t[]){0x00}, 1, 0},
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{0x76, (uint8_t[]){0x00}, 1, 0},
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{0x77, (uint8_t[]){0x00}, 1, 0},
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{0x78, (uint8_t[]){0x00}, 1, 0},
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{0x79, (uint8_t[]){0x00}, 1, 0},
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{0x7A, (uint8_t[]){0x00}, 1, 0},
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{0x7B, (uint8_t[]){0x00}, 1, 0},
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{0x80, (uint8_t[]){0x48}, 1, 0},
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{0x81, (uint8_t[]){0x00}, 1, 0},
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{0x82, (uint8_t[]){0x07}, 1, 0},
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{0x83, (uint8_t[]){0x02}, 1, 0},
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{0x84, (uint8_t[]){0xD7}, 1, 0},
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{0x85, (uint8_t[]){0x04}, 1, 0},
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{0x86, (uint8_t[]){0x00}, 1, 0},
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{0x87, (uint8_t[]){0x00}, 1, 0},
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{0x88, (uint8_t[]){0x48}, 1, 0},
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{0x89, (uint8_t[]){0x00}, 1, 0},
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{0x8A, (uint8_t[]){0x09}, 1, 0},
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{0x8B, (uint8_t[]){0x02}, 1, 0},
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{0x8C, (uint8_t[]){0xD9}, 1, 0},
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{0x8D, (uint8_t[]){0x04}, 1, 0},
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{0x8E, (uint8_t[]){0x00}, 1, 0},
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{0x8F, (uint8_t[]){0x00}, 1, 0},
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{0x90, (uint8_t[]){0x48}, 1, 0},
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{0x91, (uint8_t[]){0x00}, 1, 0},
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{0x92, (uint8_t[]){0x0B}, 1, 0},
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{0x93, (uint8_t[]){0x02}, 1, 0},
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{0x94, (uint8_t[]){0xDB}, 1, 0},
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{0x95, (uint8_t[]){0x04}, 1, 0},
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{0x96, (uint8_t[]){0x00}, 1, 0},
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{0x97, (uint8_t[]){0x00}, 1, 0},
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{0x98, (uint8_t[]){0x48}, 1, 0},
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{0x99, (uint8_t[]){0x00}, 1, 0},
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{0x9A, (uint8_t[]){0x0D}, 1, 0},
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{0x9B, (uint8_t[]){0x02}, 1, 0},
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{0x9C, (uint8_t[]){0xDD}, 1, 0},
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{0x9D, (uint8_t[]){0x04}, 1, 0},
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{0x9E, (uint8_t[]){0x00}, 1, 0},
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{0x9F, (uint8_t[]){0x00}, 1, 0},
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{0xA0, (uint8_t[]){0x48}, 1, 0},
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{0xA1, (uint8_t[]){0x00}, 1, 0},
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{0xA2, (uint8_t[]){0x06}, 1, 0},
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{0xA3, (uint8_t[]){0x02}, 1, 0},
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{0xA4, (uint8_t[]){0xD6}, 1, 0},
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{0xA5, (uint8_t[]){0x04}, 1, 0},
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{0xA6, (uint8_t[]){0x00}, 1, 0},
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{0xA7, (uint8_t[]){0x00}, 1, 0},
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{0xA8, (uint8_t[]){0x48}, 1, 0},
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{0xA9, (uint8_t[]){0x00}, 1, 0},
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{0xAA, (uint8_t[]){0x08}, 1, 0},
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{0xAB, (uint8_t[]){0x02}, 1, 0},
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{0xAC, (uint8_t[]){0xD8}, 1, 0},
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{0xAD, (uint8_t[]){0x04}, 1, 0},
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{0xAE, (uint8_t[]){0x00}, 1, 0},
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{0xAF, (uint8_t[]){0x00}, 1, 0},
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{0xB0, (uint8_t[]){0x48}, 1, 0},
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{0xB1, (uint8_t[]){0x00}, 1, 0},
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{0xB2, (uint8_t[]){0x0A}, 1, 0},
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{0xB3, (uint8_t[]){0x02}, 1, 0},
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{0xB4, (uint8_t[]){0xDA}, 1, 0},
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{0xB5, (uint8_t[]){0x04}, 1, 0},
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{0xB6, (uint8_t[]){0x00}, 1, 0},
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{0xB7, (uint8_t[]){0x00}, 1, 0},
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{0xB8, (uint8_t[]){0x48}, 1, 0},
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{0xB9, (uint8_t[]){0x00}, 1, 0},
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{0xBA, (uint8_t[]){0x0C}, 1, 0},
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{0xBB, (uint8_t[]){0x02}, 1, 0},
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{0xBC, (uint8_t[]){0xDC}, 1, 0},
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{0xBD, (uint8_t[]){0x04}, 1, 0},
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{0xBE, (uint8_t[]){0x00}, 1, 0},
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{0xBF, (uint8_t[]){0x00}, 1, 0},
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{0xC0, (uint8_t[]){0x10}, 1, 0},
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{0xC1, (uint8_t[]){0x47}, 1, 0},
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{0xC2, (uint8_t[]){0x56}, 1, 0},
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{0xC3, (uint8_t[]){0x65}, 1, 0},
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{0xC4, (uint8_t[]){0x74}, 1, 0},
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{0xC5, (uint8_t[]){0x88}, 1, 0},
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{0xC6, (uint8_t[]){0x99}, 1, 0},
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{0xC7, (uint8_t[]){0x01}, 1, 0},
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{0xC8, (uint8_t[]){0xBB}, 1, 0},
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{0xC9, (uint8_t[]){0xAA}, 1, 0},
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{0xD0, (uint8_t[]){0x10}, 1, 0},
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{0xD1, (uint8_t[]){0x47}, 1, 0},
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{0xD2, (uint8_t[]){0x56}, 1, 0},
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{0xD3, (uint8_t[]){0x65}, 1, 0},
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{0xD4, (uint8_t[]){0x74}, 1, 0},
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{0xD5, (uint8_t[]){0x88}, 1, 0},
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{0xD6, (uint8_t[]){0x99}, 1, 0},
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{0xD7, (uint8_t[]){0x01}, 1, 0},
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{0xD8, (uint8_t[]){0xBB}, 1, 0},
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{0xD9, (uint8_t[]){0xAA}, 1, 0},
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{0xF3, (uint8_t[]){0x01}, 1, 0},
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{0xF0, (uint8_t[]){0x00}, 1, 0},
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{0x3A, (uint8_t[]){0x55}, 1, 0},
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{0x21, (uint8_t[]){0x00}, 1, 0},
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{0x11, (uint8_t[]){0x00}, 1, 120},
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{0x29, (uint8_t[]){0x00}, 1, 0},
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};
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void lcd_init(){
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// 标准SPI总线配置（CLK + MOSI，无MISO）
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const spi_bus_config_t buscfg = {
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.sclk_io_num = PIN_LCD_CLK,
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.mosi_io_num = PIN_LCD_MOSI,
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.miso_io_num = -1,
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.quadwp_io_num = -1,
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.quadhd_io_num = -1,
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.max_transfer_sz = LCD_HIGH * 80 * sizeof(uint16_t),
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};
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ESP_ERROR_CHECK(spi_bus_initialize(SPI_LCD_HOST, &buscfg, SPI_DMA_CH_AUTO));
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// 标准SPI IO配置（带DC引脚）
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esp_lcd_panel_io_spi_config_t io_config = {
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.dc_gpio_num = PIN_LCD_DC,
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.cs_gpio_num = PIN_LCD_CS,
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.pclk_hz = 60 * 1000 * 1000, // C3 SPI最大60MHz
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.lcd_cmd_bits = 8,
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.lcd_param_bits = 8,
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.spi_mode = 0,
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.trans_queue_depth = 10,
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};
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ESP_ERROR_CHECK(esp_lcd_new_panel_io_spi((esp_lcd_spi_bus_handle_t)SPI_LCD_HOST, &io_config, &io_handle));
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// ST77916面板配置（通过vendor_config注入正确的初始化命令）
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st77916_vendor_config_t vendor_cfg = {
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.init_cmds = lcd_init_cmds,
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.init_cmds_size = sizeof(lcd_init_cmds) / sizeof(lcd_init_cmds[0]),
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};
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const esp_lcd_panel_dev_config_t panel_config = {
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.reset_gpio_num = PIN_LCD_RST,
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.rgb_ele_order = LCD_RGB_ELEMENT_ORDER_RGB,
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.bits_per_pixel = 16,
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.vendor_config = &vendor_cfg,
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};
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ESP_ERROR_CHECK(esp_lcd_new_panel_st77916(io_handle, &panel_config, &panel_handle));
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esp_lcd_panel_reset(panel_handle);
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esp_lcd_panel_init(panel_handle);
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esp_lcd_panel_mirror(panel_handle, false, false); // 与参考项目一致
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// 清空LCD GRAM，避免显示上次关机时的残留画面
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size_t clear_buffer_size = LCD_WID * 40; // 每次清除40行
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uint16_t *clear_buffer = heap_caps_malloc(clear_buffer_size * sizeof(uint16_t), MALLOC_CAP_DMA);
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if (clear_buffer) {
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memset(clear_buffer, 0, clear_buffer_size * sizeof(uint16_t));
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for (int y = 0; y < LCD_HIGH; y += 40) {
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int lines = (y + 40 > LCD_HIGH) ? (LCD_HIGH - y) : 40;
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esp_lcd_panel_draw_bitmap(panel_handle, 0, y, LCD_WID, y + lines, clear_buffer);
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}
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heap_caps_free(clear_buffer);
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ESP_LOGI(LCD_TAG, "LCD GRAM cleared (black filled)");
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} else {
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ESP_LOGE(LCD_TAG, "Failed to allocate clear buffer");
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}
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// 初始化时不打开显示，等UI渲染完成后由main.c调用lcd_disp_on_off(true)
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esp_lcd_panel_disp_on_off(panel_handle, false);
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}
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// 初始化触摸控制器
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void touch_init(){
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const esp_lcd_touch_config_t tp_cfg = {
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.x_max = LCD_WID,
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.y_max = LCD_HIGH,
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.rst_gpio_num = PIN_TP_RST,
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.int_gpio_num = PIN_TP_INT,
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.levels = {
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.reset = 0,
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.interrupt = 0,
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},
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.flags = {
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.swap_xy = 0, // managed版CST816S不在驱动内变换，base库会做单次变换
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.mirror_x = 0, // 参考项目本地驱动+base库双重变换=恒等，实际传原始坐标
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.mirror_y = 0, // 所以这里全部设0，直接传原始坐标给LVGL
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},
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};
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// 手动配置I2C IO（不使用宏，因为宏的scl_speed_hz与legacy I2C驱动不兼容）
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const esp_lcd_panel_io_i2c_config_t tp_io_config = {
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.dev_addr = ESP_LCD_TOUCH_IO_I2C_CST816S_ADDRESS,
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.control_phase_bytes = 1,
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.dc_bit_offset = 0,
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.lcd_cmd_bits = 8,
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.lcd_param_bits = 0,
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.flags = {
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.disable_control_phase = 1,
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},
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};
|
||
esp_err_t err = esp_lcd_new_panel_io_i2c((esp_lcd_i2c_bus_handle_t)I2C_MASTER_NUM, &tp_io_config, &tp_io_handle);
|
||
if (err != ESP_OK) {
|
||
ESP_LOGE(LCD_TAG, "Failed to create I2C IO for touch: %s", esp_err_to_name(err));
|
||
return;
|
||
}
|
||
err = esp_lcd_touch_new_i2c_cst816s(tp_io_handle, &tp_cfg, &touch_handle);
|
||
if (err != ESP_OK) {
|
||
ESP_LOGE(LCD_TAG, "Failed to create touch handle: %s", esp_err_to_name(err));
|
||
return;
|
||
}
|
||
ESP_LOGI(LCD_TAG, "Touch controller initialized successfully");
|
||
}
|
||
|
||
// 初始化LVGL显示和触摸
|
||
void lvgl_lcd_init(){
|
||
const lvgl_port_cfg_t lvgl_cfg = {
|
||
.task_priority = 4,
|
||
.task_stack = 8192,
|
||
.task_affinity = -1,
|
||
.task_max_sleep_ms = 500,
|
||
.timer_period_ms = 5
|
||
};
|
||
lvgl_port_init(&lvgl_cfg);
|
||
|
||
#define LVGL_DRAW_BUF_LINES 30
|
||
size_t buffer_size = LCD_WID * LVGL_DRAW_BUF_LINES;
|
||
|
||
ESP_LOGI(LCD_TAG, "LVGL buffer size: %d bytes (W: %d, Lines: %d)",
|
||
buffer_size * 2, LCD_WID, LVGL_DRAW_BUF_LINES);
|
||
|
||
const lvgl_port_display_cfg_t disp_cfg = {
|
||
.io_handle = io_handle,
|
||
.panel_handle = panel_handle,
|
||
.buffer_size = buffer_size,
|
||
.double_buffer = true,
|
||
.hres = LCD_WID,
|
||
.vres = LCD_HIGH,
|
||
.monochrome = false,
|
||
.rotation = {
|
||
.swap_xy = false,
|
||
.mirror_x = false,
|
||
.mirror_y = false,
|
||
},
|
||
.flags = {
|
||
.buff_dma = true,
|
||
}
|
||
};
|
||
disp_handle = lvgl_port_add_disp(&disp_cfg);
|
||
if (touch_handle != NULL) {
|
||
lvgl_port_touch_cfg_t touch_cgf = {
|
||
.disp = disp_handle,
|
||
.handle = touch_handle,
|
||
};
|
||
lvgl_port_add_touch(&touch_cgf);
|
||
ESP_LOGI(LCD_TAG, "Touch controller added to LVGL");
|
||
} else {
|
||
ESP_LOGE(LCD_TAG, "Touch handle is NULL, skipping touch initialization");
|
||
}
|
||
}
|
||
|
||
void get_touch(uint16_t* touchx,uint16_t* touchy){
|
||
if (touch_handle == NULL) {
|
||
ESP_LOGE(LCD_TAG, "Touch handle is NULL, cannot get touch data");
|
||
*touchx = 0;
|
||
*touchy = 0;
|
||
return;
|
||
}
|
||
uint8_t max = 1;
|
||
max = touch_handle->data.points;
|
||
*touchx = touch_handle->data.coords[0].x;
|
||
*touchy = touch_handle->data.coords[0].y;
|
||
printf("%x\n",max);
|
||
}
|
||
|
||
// 填充LCD GRAM为指定颜色（同步阻塞，返回后GRAM完全更新）
|
||
// 用于手电筒颜色切换：绕过LVGL 30行分band渲染，直接写GRAM消除从上到下的刷新层次感
|
||
void lcd_fill_color(uint32_t color_rgb) {
|
||
if (panel_handle == NULL) return;
|
||
|
||
// RGB888 → RGB565（与LVGL格式一致，含byte swap）
|
||
lv_color_t c = lv_color_hex(color_rgb);
|
||
uint16_t color16 = c.full;
|
||
|
||
size_t band_pixels = LCD_WID * 40;
|
||
uint16_t *buf = heap_caps_malloc(band_pixels * sizeof(uint16_t), MALLOC_CAP_DMA);
|
||
if (!buf) {
|
||
ESP_LOGE(LCD_TAG, "lcd_fill_color: malloc failed");
|
||
return;
|
||
}
|
||
|
||
// 填充颜色（只需一次，所有band复用同一缓冲区）
|
||
for (size_t i = 0; i < band_pixels; i++) {
|
||
buf[i] = color16;
|
||
}
|
||
|
||
// 逐band写入GRAM（esp_lcd_panel_draw_bitmap为同步阻塞，等DMA完成才返回）
|
||
for (int y = 0; y < LCD_HIGH; y += 40) {
|
||
int lines = (y + 40 > LCD_HIGH) ? (LCD_HIGH - y) : 40;
|
||
esp_lcd_panel_draw_bitmap(panel_handle, 0, y, LCD_WID, y + lines, buf);
|
||
}
|
||
|
||
heap_caps_free(buf);
|
||
}
|
||
|
||
// LCD显示开关封装（供main.c在UI渲染完成后调用）
|
||
void lcd_disp_on_off(bool on_off) {
|
||
if (panel_handle != NULL) {
|
||
esp_lcd_panel_disp_on_off(panel_handle, on_off);
|
||
}
|
||
}
|
||
|
||
// 清空LCD GRAM为黑色（用于低功耗熄屏前，避免残影）
|
||
void lcd_clear_screen_black(void) {
|
||
if (panel_handle == NULL) {
|
||
ESP_LOGE(LCD_TAG, "Panel handle is NULL, cannot clear screen");
|
||
return;
|
||
}
|
||
|
||
size_t clear_buffer_size = LCD_WID * 40;
|
||
uint16_t *clear_buffer = heap_caps_malloc(clear_buffer_size * sizeof(uint16_t), MALLOC_CAP_DMA);
|
||
if (clear_buffer) {
|
||
memset(clear_buffer, 0, clear_buffer_size * sizeof(uint16_t));
|
||
|
||
for (int y = 0; y < LCD_HIGH; y += 40) {
|
||
int lines = (y + 40 > LCD_HIGH) ? (LCD_HIGH - y) : 40;
|
||
esp_lcd_panel_draw_bitmap(panel_handle, 0, y, LCD_WID, y + lines, clear_buffer);
|
||
}
|
||
|
||
heap_caps_free(clear_buffer);
|
||
ESP_LOGI(LCD_TAG, "LCD GRAM cleared to black (for low power mode)");
|
||
} else {
|
||
ESP_LOGE(LCD_TAG, "Failed to allocate clear buffer");
|
||
}
|
||
}
|