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STM32F4-Base/simulator/main.c
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/**
* @file main.c
* @brief LVGL 模拟器入口 — 160x160 1bpp 单色菜单 UI
* @note 基于 lv_port_pc_vscode 适配,用于 PC 上 UI 开发与调试
*
* 键盘映射:
* ↑/↓/←/→ → 方向键导航
* Enter → 确认/进入
* Escape → 返回
*
* 截图模式(无窗口离屏渲染,导出像素供比对):
* lvgl_sim.exe --screenshot shot.bin
* 走与 MCU 端一致的离屏软件渲染(ARGB8888 缓冲 + mono 主题),
* 渲染首帧后将 160x160 像素按 BGRA 顺序写入 shot.bin(102400 字节),随即退出。
*
* 键序截图模式(无窗口 + 注入按键序列后截图,用于级联菜单无头回归):
* lvgl_sim.exe --keys <seq> shot.bin
* seq 字符:u=↑ d=↓ l=← r=→ e=Enter s=Esc(其余字符忽略)
* 每键经 lv_group_send_data 注入(与 keypad 输入设备同路径),驱动 5 帧后取快照
*
* 配置轮询自检模式(无窗口、进程内闭环、退出码 0=PASS / 非0=FAIL):
* lvgl_sim.exe --cfgtest
* 验证链:net_cfg_load(含旧档迁移)→ poll 建基线 → 伪造外部编辑
* (原子写新文档,等价 FTP 上传/文本编辑器)→ poll 两次(4s 沉降)
* → 断言 RAM 副本已按新文件重载
*
* 日志引擎自检模式(无窗口、进程内闭环、退出码 0=PASS / 非0=FAIL):
* lvgl_sim.exe --logtest
* 验证链:post N 条 → count/get 回读断言 + 宿主文件字节级校验
* (64B 定长、ISO 时间戳、epoch 字段、NUL 填充)
*
* 待机屏截图模式(无窗口,强制进入待机后截图):
* lvgl_sim.exe --standby shot.bin
*
* 窗口模式空闲超时覆盖:lvgl_sim.exe --idle <秒>(默认 60s)
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#ifdef _MSC_VER
#include <Windows.h>
#include <winsock2.h>
#else
#include <unistd.h>
#endif
#define SDL_MAIN_HANDLED
#include <SDL.h>
#include "lvgl.h"
#include "sim_port.h"
#include "ui_menu.h"
#include "ui_standby.h"
#include "ui_net_sink.h"
#include "net_cfg.h"
#include "cfg_file.h"
#include "cfg_file_store.h"
#include "sys_log.h"
/* 屏幕尺寸(与 MCU 端一致) */
#define SIM_SCREEN_W 160
#define SIM_SCREEN_H 160
/* 离屏截图缓冲:I1(1bpp,与 MCU/模拟器窗口一致;软件渲染器仅支持 I1),160x160/8 */
static uint8_t g_shot_buf[SIM_SCREEN_W * SIM_SCREEN_H / 8];
/*
* @brief 离屏截图用空 delay 回调
* @note 默认 lv_delay_ms 会忙等 tick 前进,但离屏渲染时 tick 不会在等待期间推进,
* 导致死循环挂死。window 模式经 SDL 设了真实 delay,离屏这里用空实现代替。
*/
static void shot_delay_cb(uint32_t ms)
{
(void)ms;
}
/*
* @brief 离屏截图 flush 回调(不写真实设备,直接标记就绪)
*/
static void shot_flush_cb(lv_display_t * disp, const lv_area_t * area, uint8_t * color_p)
{
(void)area;
(void)color_p;
lv_display_flush_ready(disp);
}
/*
* 键序列字符 → LVGL 键值(非键字符返回 0 = 忽略)
*/
static uint32_t sim_map_key_char(char c)
{
switch (c) {
case 'u': return LV_KEY_UP;
case 'd': return LV_KEY_DOWN;
case 'l': return LV_KEY_LEFT;
case 'r': return LV_KEY_RIGHT;
case 'e': return LV_KEY_ENTER;
case 's': return LV_KEY_ESC;
default: return 0;
}
}
/*
* @brief 待机屏底部时钟提供回调(平台差异:模拟器 = 宿主 time())
*/
static void sim_time_cb(char *buf, size_t len)
{
time_t t = time(NULL);
struct tm tmv;
#if defined(_MSC_VER)
localtime_s(&tmv, &t);
#else
localtime_r(&t, &tmv);
#endif
(void)snprintf(buf, len, "%04d-%02d-%02d %02d:%02d:%02d",
tmv.tm_year + 1900, tmv.tm_mon + 1, tmv.tm_mday,
tmv.tm_hour, tmv.tm_min, tmv.tm_sec);
}
/*
* @brief 无窗口离屏渲染(可注入键序列)并导出末帧像素
* @param keys 键序列(u=上 d=下 l=左 r=右 e=确认 s=返回;空 = 不注键)
* @param path 输出文件(写入 160x160 I1 原始像素)
* @param standby 非 0 = 注键后强制进入待机屏再截图(--standby 模式)
* @return 0 成功,非 0 失败
*/
static int run_headless(const char * keys, const char * path, int standby)
{
setvbuf(stdout, NULL, _IONBF, 0);
lv_init();
lv_delay_set_cb(shot_delay_cb);
lv_display_t *disp = lv_display_create(SIM_SCREEN_W, SIM_SCREEN_H);
if (disp == NULL) {
return 1;
}
lv_display_set_default(disp);
lv_display_set_color_format(disp, LV_COLOR_FORMAT_I1);
lv_display_set_buffers(disp, g_shot_buf, NULL, sizeof(g_shot_buf),
LV_DISPLAY_RENDER_MODE_FULL);
lv_display_set_flush_cb(disp, shot_flush_cb);
lv_group_t *g = lv_group_create();
if (g == NULL) {
return 1;
}
lv_group_set_default(g);
#if LV_USE_THEME_MONO
lv_theme_t *th = lv_theme_mono_init(disp, true, LV_FONT_DEFAULT);
if (th != NULL) {
lv_display_set_theme(disp, th);
}
#endif
/* 配置 RAM 副本:镜像 netTask 上电流程(net_cfg_load → 工厂默认),
* 使网口设置内容页显示与真机一致的工厂默认值 */
(void)net_cfg_load();
if (ui_menu_init() != 0) {
return 1;
}
/* 待机模块(无头模式不驱动 lv_timer_handler,空闲定时器不会触发;
* --standby 经 force_enter 测试钩子直接切入) */
(void)ui_standby_init(60000u, sim_time_cb);
/* 键注入:与 keypad 输入设备同路径(向焦点对象发 LV_EVENT_KEY)。
* 键处理是同步的(状态变更 + 场景更新当场完成),无需驱动帧;
* 无头模式严禁调 lv_timer_handler()/lv_refr_now()——I1+FULL 全屏刷新会进渲染死循环 */
for (const char *p = keys; *p != '\0'; p++) {
uint32_t key = sim_map_key_char(*p);
if (key == 0u) {
continue;
}
lv_group_send_data(g, key);
}
/* 执行待处理"保存网口配置"请求:无头模式不跑主循环(帧驱动被禁用),
* 此处同步完成保存交接,保持与窗口模式/真机一致的终态(WAIT → OK/ERR) */
while (net_cfg_save_state() == (int)NET_CFG_SAVE_ST_WAIT) {
net_cfg_save_run();
}
/* --standby:注键后强制进入待机屏(截图前) */
if (standby != 0) {
ui_standby_force_enter();
}
/* 注键后 LVGL 池占用(无头模式;内存回归用,对照 ui_menu_init 基线) */
lv_mem_monitor_t mon;
lv_mem_monitor(&mon);
printf("pool after keys: used=%u free=%u\n",
(unsigned)(mon.total_size - mon.free_size), (unsigned)mon.free_size);
/* 用 snapshot 把整屏渲进独立 I1 draw_buf(避开 I1+FULL 的渲染死循环) */
lv_draw_buf_t *snap = lv_snapshot_take(lv_screen_active(), LV_COLOR_FORMAT_I1);
if (snap == NULL) {
fprintf(stderr, "[shot] snapshot failed\n");
return 1;
}
uint32_t snap_w = snap->header.w;
uint32_t snap_h = snap->header.h;
/* I1 缓冲区布局:[palette 8B][pixel data],跳过 palette 只写像素 */
uint32_t pal_bytes = LV_COLOR_INDEXED_PALETTE_SIZE(LV_COLOR_FORMAT_I1) * (uint32_t)sizeof(lv_color32_t);
uint8_t * px = snap->data + pal_bytes;
uint32_t px_bytes = (uint32_t)snap->header.stride * (uint32_t)snap_h;
FILE *fp = fopen(path, "wb");
if (fp == NULL) {
lv_draw_buf_destroy(snap);
fprintf(stderr, "fopen failed: %s\n", path);
return 1;
}
size_t n = fwrite(px, 1, px_bytes, fp);
fclose(fp);
lv_draw_buf_destroy(snap);
printf("screenshot: %s (%zu bytes, %ux%u I1)\n", path, n, snap_w, snap_h);
return 0;
}
/* 伪造"外部编辑"文档(绕过引擎原子写 = 等价 FTP 上传/文本编辑器);
* 刻意短于出厂模板,保证 (size, mtime) 变更令牌必变 */
static const char s_cfgtest_doc[] =
"; cfgtest forged external edit\r\n"
"\r\n"
"[network]\r\n"
"ip=10.0.0.1\r\n"
"mask=255.255.255.0\r\n"
"gw=10.0.0.254\r\n"
"mac=00:00:00:00:00:00\r\n";
/* 伪造编辑后 RAM 副本应呈现的 IP */
static const uint8_t s_cfgtest_ip[4] = { 10u, 0u, 0u, 1u };
/*
* @brief 配置轮询自检(无窗口、无需 LVGL/SDL,进程内闭环)
* @note 验证链:net_cfg_load(含旧档迁移)→ poll 建基线 → 伪造外部编辑
* → poll 两次(沉降去抖)→ 重载并更新 RAM 副本
* @return 0 PASS,非 0 FAIL
*/
static int run_cfgtest(void)
{
int i;
const net_cfg_t *p_cfg;
setvbuf(stdout, NULL, _IONBF, 0);
(void)net_cfg_load(); /* 加载 / 旧档迁移(含 [network] 段注册) */
cfg_file_poll(); /* 第 1 次 poll:建立变更基线 */
/* 伪造外部编辑(原子写,与 P4 后 FTP STOR 同路径) */
if (cfg_store_write_atomic(cfg_store_config_path(),
(const uint8_t *)s_cfgtest_doc,
strlen(s_cfgtest_doc)) != 0) {
fprintf(stderr, "[cfgtest] forge write failed\n");
return 1;
}
cfg_file_poll(); /* 第 2 次 poll:检出变更,沉降计数 1 */
cfg_file_poll(); /* 第 3 次 poll:沉降完成 → 重载 + 变更回调 */
p_cfg = net_cfg_get();
for (i = 0; i < 4; i++) {
if (p_cfg->ip[i] != s_cfgtest_ip[i]) {
printf("[cfgtest] FAIL ip after reload = %u.%u.%u.%u (expect 10.0.0.1)\n",
(unsigned)p_cfg->ip[0], (unsigned)p_cfg->ip[1],
(unsigned)p_cfg->ip[2], (unsigned)p_cfg->ip[3]);
return 1;
}
}
printf("[cfgtest] OK ip after reload = 10.0.0.1\n");
/* 保存回环:外科手术式保存(目标文件已存在)→ 回读校验注释保留与值一致 */
if (net_cfg_save() != 0) {
printf("[cfgtest] FAIL net_cfg_save (existing file)\n");
return 1;
}
{
uint8_t buf[CFG_FILE_MAX_LEN + 1u];
char *p_doc;
size_t n = 0u;
if (cfg_store_read(cfg_store_config_path(), buf, sizeof(buf), &n) != 0) {
printf("[cfgtest] FAIL readback open\n");
return 1;
}
buf[n] = '\0';
p_doc = (char *)buf;
if (strstr(p_doc, "; cfgtest forged external edit") == NULL) {
printf("[cfgtest] FAIL comment lost after surgical save\n");
return 1;
}
if (strstr(p_doc, "ip=10.0.0.1") == NULL) {
printf("[cfgtest] FAIL value lost after surgical save\n");
return 1;
}
}
printf("[cfgtest] OK surgical save (comment kept, value intact)\n");
/* E-01 场景 1:伪造超长文件(> CFG_FILE_MAX_LEN)→ poll 必须判损坏
* (与 load/MCU 同一契约):RAM 回工厂默认 + 文件重建为出厂模板,
* 而非截断解析残留 10.0.0.1(修复前死码走的是截断分支) */
{
uint8_t big[CFG_FILE_MAX_LEN + 64u];
cfg_file_stat_t st_chk;
(void)memset(big, ';', sizeof(big)); /* 纯注释:内容无关,尺寸超即触发 */
if (cfg_store_write_atomic(cfg_store_config_path(), big, sizeof(big)) != 0) {
printf("[cfgtest] FAIL forge oversized write\n");
return 1;
}
cfg_file_poll(); /* 检出变更(沉降计数 1) */
cfg_file_poll(); /* 沉降完成 → 损坏分支:工厂默认 + 重建模板 */
if (cfg_store_stat(cfg_store_config_path(), &st_chk) != 0 ||
st_chk.size == 0u || st_chk.size > CFG_FILE_MAX_LEN) {
printf("[cfgtest] FAIL oversized file not rebuilt (size=%lu)\n",
(unsigned long)st_chk.size);
return 1;
}
p_cfg = net_cfg_get();
if (p_cfg->ip[0] != 192u || p_cfg->ip[1] != 168u ||
p_cfg->ip[2] != 1u || p_cfg->ip[3] != 100u) {
printf("[cfgtest] FAIL ip not factory after oversized: %u.%u.%u.%u\n",
(unsigned)p_cfg->ip[0], (unsigned)p_cfg->ip[1],
(unsigned)p_cfg->ip[2], (unsigned)p_cfg->ip[3]);
return 1;
}
}
printf("[cfgtest] OK oversized file rebuilt to factory template\n");
/* E-01 场景 2:save 拒写"雷"文件——伪造合法界内纯注释文件(4000B,无
* [network] 段),外科手术保存文末补写受管段 → 输出必然超
* CFG_FILE_MAX_LEN:必须拒绝(net_cfg_save 返 -1)且原文件不动;
* 修复前此处会成功写出 ~4200B 超长文件 = 下次开机被销毁的雷 */
{
uint8_t pad[4000u];
cfg_file_stat_t st_chk;
(void)memset(pad, ';', sizeof(pad));
if (cfg_store_write_atomic(cfg_store_config_path(), pad, sizeof(pad)) != 0) {
printf("[cfgtest] FAIL forge padding write\n");
return 1;
}
if (net_cfg_save() == 0) {
printf("[cfgtest] FAIL oversized document was written (landmine)\n");
return 1;
}
(void)cfg_store_stat(cfg_store_config_path(), &st_chk);
if (st_chk.size != 4000u) {
printf("[cfgtest] FAIL file modified by rejected save (size=%lu)\n",
(unsigned long)st_chk.size);
return 1;
}
}
printf("[cfgtest] OK save rejected oversized document (file untouched)\n");
printf("[cfgtest] PASS\n");
return 0;
}
/*
* @brief 日志引擎自检(无窗口、进程内闭环)
* @note 验证链:清理旧档 → post N 条 → count/get 回读断言 + 宿主文件字节级校验
* (64B 定长、ISO 时间戳格式、epoch 字段 ≈ now、NUL 填充)
* @return 0 PASS,非 0 FAIL
*/
static int run_logtest(void)
{
uint32_t ep;
char ts[SYSLOG_TS_LEN + 1u];
char desc[SYSLOG_DESC_MAX + 1u];
setvbuf(stdout, NULL, _IONBF, 0);
/* 确定性起点:清理旧档 */
(void)remove("sim_run.log");
(void)remove("sim_selftest.log");
syslog_post(SYSLOG_RUN, "power on");
syslog_post(SYSLOG_SELFTEST, "clock chip fault");
syslog_post(SYSLOG_SELFTEST, "NAND fault");
if (syslog_count(SYSLOG_RUN) != 1u) {
printf("[logtest] FAIL run count = %u (expect 1)\n", (unsigned)syslog_count(SYSLOG_RUN));
return 1;
}
if (syslog_count(SYSLOG_SELFTEST) != 2u) {
printf("[logtest] FAIL selftest count = %u (expect 2)\n", (unsigned)syslog_count(SYSLOG_SELFTEST));
return 1;
}
/* 回读断言:时间戳格式 + 描述内容 */
if (syslog_get_record(SYSLOG_RUN, 0u, ts, sizeof(ts), desc, sizeof(desc)) != 0) {
printf("[logtest] FAIL get_record(run, 0)\n");
return 1;
}
if (strlen(ts) != SYSLOG_TS_LEN || ts[4] != '-' || ts[7] != '-' || ts[10] != ' ') {
printf("[logtest] FAIL ts format = \"%s\"\n", ts);
return 1;
}
if (strcmp(desc, "power on") != 0) {
printf("[logtest] FAIL desc = \"%s\"\n", desc);
return 1;
}
if (syslog_get_record(SYSLOG_SELFTEST, 1u, ts, sizeof(ts), desc, sizeof(desc)) != 0) {
printf("[logtest] FAIL get_record(selftest, 1)\n");
return 1;
}
if (strcmp(desc, "NAND fault") != 0) {
printf("[logtest] FAIL desc[1] = \"%s\"\n", desc);
return 1;
}
/* epoch 字段 ≈ now(±5s) */
if (syslog_last_epoch(SYSLOG_RUN, &ep) != 0) {
printf("[logtest] FAIL last_epoch(run)\n");
return 1;
}
if ((uint32_t)abs((int)(ep - (uint32_t)time(NULL))) > 5u) {
printf("[logtest] FAIL epoch = %u (now = %lu)\n", (unsigned)ep, (unsigned long)time(NULL));
return 1;
}
/* 宿主文件字节级校验:64B 定长 + 字段布局 + NUL 填充 */
{
FILE *fp = fopen("sim_run.log", "rb");
uint8_t rec[SYSLOG_REC_SIZE];
if (fp == NULL) {
printf("[logtest] FAIL open sim_run.log\n");
return 1;
}
if (fread(rec, 1u, sizeof(rec), fp) != sizeof(rec)) {
fclose(fp);
printf("[logtest] FAIL record size != %u\n", (unsigned)SYSLOG_REC_SIZE);
return 1;
}
fclose(fp);
if (rec[SYSLOG_TS_LEN] != ' ' || rec[SYSLOG_DESC_OFFS - 1u] != ' ') {
printf("[logtest] FAIL field separators at [%u]/[%u]\n",
(unsigned)SYSLOG_TS_LEN, (unsigned)(SYSLOG_DESC_OFFS - 1u));
return 1;
}
for (uint32_t i = SYSLOG_DESC_OFFS + strlen("power on"); i < SYSLOG_REC_SIZE; i++) {
if (rec[i] != '\0') {
printf("[logtest] FAIL NUL padding at [%u]\n", (unsigned)i);
return 1;
}
}
}
printf("[logtest] OK count/get/epoch/bytes\n");
printf("[logtest] PASS\n");
return 0;
}
/**
* @brief 程序入口
*/
int main(int argc, char **argv)
{
/* 截图/自检模式:--screenshot / --keys / --standby / --cfgtest / --logtest */
for (int i = 1; i < argc; i++) {
if (strcmp(argv[i], "--screenshot") == 0 && (i + 1) < argc) {
return run_headless("", argv[i + 1], 0);
}
if (strcmp(argv[i], "--keys") == 0 && (i + 2) < argc) {
return run_headless(argv[i + 1], argv[i + 2], 0);
}
if (strcmp(argv[i], "--standby") == 0 && (i + 1) < argc) {
return run_headless("", argv[i + 1], 1);
}
if (strcmp(argv[i], "--cfgtest") == 0) {
return run_cfgtest();
}
if (strcmp(argv[i], "--logtest") == 0) {
return run_logtest();
}
}
/* 窗口模式空闲超时覆盖(--idle <秒>,默认 60) */
uint32_t idle_s = 60u;
for (int i = 1; i < argc; i++) {
if (strcmp(argv[i], "--idle") == 0 && (i + 1) < argc) {
int v = atoi(argv[i + 1]);
if (v > 0) {
idle_s = (uint32_t)v;
}
}
}
/* 初始化 Winsock(供 ui_net_sink 使用) */
#ifdef _MSC_VER
WSADATA wsa;
WSAStartup(MAKEWORD(2, 2), &wsa);
#endif
/* 初始化 SDL2(仅 timer + events,视频由 lv_sdl_window 内部初始化) */
if (SDL_Init(SDL_INIT_TIMER | SDL_INIT_EVENTS) != 0) {
fprintf(stderr, "SDL_Init failed: %s\n", SDL_GetError());
return 1;
}
/* 初始化 LVGL */
lv_init();
/* 初始化模拟器端口:创建 SDL 窗口 + 键盘输入 */
if (sim_port_init(SIM_SCREEN_W, SIM_SCREEN_H) != 0) {
fprintf(stderr, "sim_port_init failed\n");
SDL_Quit();
return 1;
}
/* 设置 SDL 窗口标题 */
lv_display_t *disp = lv_display_get_default();
if (disp != NULL) {
lv_sdl_window_set_title(disp, "STM32F4-Base UI Simulator (160x160 1bpp)");
}
/* 配置 RAM 副本:镜像 netTask 上电流程(net_cfg_load → 工厂默认) */
(void)net_cfg_load();
/* 构建菜单 UI(与 MCU 端共用 ui_menu.c) */
if (ui_menu_init() != 0) {
fprintf(stderr, "ui_menu_init failed\n");
SDL_Quit();
return 1;
}
/* 待机显示页(空闲超时 --idle <秒>,默认 60s;ENTER 返回) */
if (ui_standby_init(idle_s * 1000u, sim_time_cb) != 0) {
fprintf(stderr, "ui_standby_init failed\n");
} else {
printf("Standby: ready (idle=%us)\n", (unsigned)idle_s);
}
/* 启动 RemoDispBus TCP 监听(端口 7003,与 MCU 端一致) */
if (ui_net_sink_start(7003) == 0) {
printf("RemoDispBus server listening on port 7003\n");
} else {
fprintf(stderr, "ui_net_sink_start failed (port 7003)\n");
}
printf("=== LVGL Simulator Started ===\n");
printf("Screen: %dx%d 1bpp\n", SIM_SCREEN_W, SIM_SCREEN_H);
printf("Keyboard: ↑↓←→ navigate, Enter confirm, Escape back\n");
printf("Press Ctrl+C or close window to exit\n\n");
/* 配置文件轮询起点(2s 周期,与 MCU netTask 一致) */
uint32_t cfg_last_poll = (uint32_t)SDL_GetTicks();
/* 主循环:驱动 LVGL 定时器与刷新
* 注意:SDL 事件(键盘/窗口/退出)由 LVGL SDL 驱动内部 5ms 定时器
* (lv_sdl_window.c 的 sdl_event_handler)统一轮询分发,
* 本循环不得再调 SDL_PollEvent,否则会先消费事件队列,
* 导致键盘输入永远到不了 LVGL */
while (1) {
/* 轮询 RemoDispBus 协议(非阻塞收发) */
ui_net_sink_poll();
/* 执行待处理"保存网口配置"请求(单线程主循环 = 配置引擎属主;
* 无请求 = 空操作);"立即应用"回调未注册 → 空操作 */
net_cfg_save_run();
/* 配置文件轮询(2s 周期:外部文件变更 4s 沉降后自动重载) */
uint32_t now_ms = (uint32_t)SDL_GetTicks();
if ((uint32_t)(now_ms - cfg_last_poll) >= 2000u) {
cfg_last_poll = now_ms;
cfg_file_poll();
}
/* 驱动 LVGL 定时器与刷新 */
uint32_t sleep_ms = lv_timer_handler();
if (sleep_ms == LV_NO_TIMER_READY) {
sleep_ms = LV_DEF_REFR_PERIOD;
}
/* 强制整屏刷新(1bpp SDL PARTIAL 模式下保证首帧输出) */
lv_refr_now(NULL);
#ifdef _MSC_VER
Sleep(sleep_ms);
#else
usleep(sleep_ms * 1000);
#endif
}
return 0;
}