Files
vd_960/vd960DBN/BLE/OnlyUpdateApp_Peripheral/APP/tcp_json_srv.c
wangfq 4fbda96078 feat(vd960DBN): 实现 DLD960Loop 串口通信协议 (0x7F)
新增:
- docs/DLD960Loop_串口通信协议.md — 协议文档 V1.02
- loop_uart_proto.h/c — 协议实现: checksum/组包/解析/帧状态机/命令状态机

修改:
- usart_biz.c: 使用 lup_feed_byte() 帧解析器替代 timeout heuristic; 波特率修正为 115200
- tcp_json_srv.c/h: loop_param_set/query 真实实现(0x63/0x64), 0xC0 传感器推流, 延迟响应机制
- peripheral_main.c: 添加 tcp_json_push_sensor() 调用, 帧解析器超时保护

校验验证: 5个协议例程 XOR+SUM 全部通过
2026-07-02 09:26:34 +08:00

958 lines
36 KiB
C

/**
******************************************************************************
* @file tcp_json_srv.c
* @author wangfq
* @version V1.0
* @date 2026-06-30
* @brief TCP JSON protocol server implementation
* DLD960 TCP JSON protocol (port 5960) — auth + 15 commands
******************************************************************************
*/
#include "CONFIG.h"
#include "tcp_json_srv.h"
#include "eth_driver.h"
#include "wchnet.h"
#include "net_srv.h"
#include "cmcng.h"
#include "loop_uart_proto.h"
#include "simple_json.h"
#include "storage.h"
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
/*===========================================================================
* Global State
*===========================================================================*/
uint8_t g_json_socket_listen = 0xFF; // TCP socket ID — handles both listen + client data
TcpJsonAuthState g_json_auth_state = JSON_STATE_WAIT_AUTH;
uint32_t g_json_auth_timer = 0;
uint8_t g_json_pwd_retry = 0;
uint32_t g_json_lockout_timer = 0;
TcpJsonPending g_json_pending = {0, 0, 0, "", 0};
/*===========================================================================
* Frame Receive Buffer (line-delimited JSON)
*===========================================================================*/
static uint8_t g_json_recv_buf[TCP_JSON_RECV_BUF_LEN];
static uint16_t g_json_recv_len = 0;
static uint8_t g_json_wchnet_buf[RECE_BUF_LEN]; // WCHNET internal recv buffer
/*===========================================================================
* Internal helpers
*===========================================================================*/
static char g_tmp_value[256]; // reusable buffer for simple_parse_json
static void reset_tmp(void) {
memset(g_tmp_value, 0, sizeof(g_tmp_value));
}
static void json_send_error(uint8_t socket, uint32_t msg_id, const char *cmd,
int code, const char *msg) {
char *out = (char *)malloc(256);
if (!out) return;
snprintf(out, 256,
"{\"msg_id\":%lu,\"cmd\":\"%s\",\"ts\":%lu,\"code\":%d,\"msg\":\"%s\"}\n",
msg_id, cmd ? cmd : "", (unsigned long)mstick(), code, msg);
uint32_t slen = strlen(out);
WCHNET_SocketSend(socket, (uint8_t *)out, &slen);
free(out);
}
static void json_send_ok(uint8_t socket, uint32_t msg_id, const char *cmd,
const char *data_json) {
char *out = (char *)malloc(TCP_JSON_MAX_FRAME);
if (!out) return;
if (data_json && strlen(data_json) > 0) {
snprintf(out, TCP_JSON_MAX_FRAME,
"{\"msg_id\":%lu,\"cmd\":\"%s\",\"ts\":%lu,\"code\":0,\"msg\":\"success\",\"data\":%s}\n",
msg_id, cmd, (unsigned long)mstick(), data_json);
} else {
snprintf(out, TCP_JSON_MAX_FRAME,
"{\"msg_id\":%lu,\"cmd\":\"%s\",\"ts\":%lu,\"code\":0,\"msg\":\"success\"}\n",
msg_id, cmd, (unsigned long)mstick());
}
uint32_t slen = strlen(out);
WCHNET_SocketSend(socket, (uint8_t *)out, &slen);
free(out);
}
/* JSON field extractors — parse msg_id, cmd, and data object from raw JSON */
static uint32_t json_get_msg_id(const char *json) {
reset_tmp();
simple_parse_json(json, "\"msg_id\"", g_tmp_value);
if (strlen(g_tmp_value) == 0) return 0;
return (uint32_t)strtoul(g_tmp_value, NULL, 10);
}
static char *json_get_data_str(const char *json) {
char *data = (char *)malloc(TCP_JSON_MAX_FRAME);
if (!data) return NULL;
memset(data, 0, TCP_JSON_MAX_FRAME);
simple_parse_json(json, "\"data\"", data);
if (strlen(data) == 0) {
free(data);
return NULL;
}
return data;
}
static void json_get_str_field(const char *json, const char *key, char *out, int out_len) {
reset_tmp();
simple_parse_json(json, key, g_tmp_value);
// strip surrounding quotes if present
char *src = g_tmp_value;
if (src[0] == '"') src++;
int len = strlen(src);
if (len > 0 && src[len - 1] == '"') len--;
int copy_len = (len < out_len - 1) ? len : out_len - 1;
memcpy(out, src, copy_len);
out[copy_len] = '\0';
}
static void json_get_cmd(const char *json, char *out, int out_len) {
json_get_str_field(json, "\"cmd\"", out, out_len);
}
static uint32_t json_get_uint_field(const char *json, const char *key) {
reset_tmp();
simple_parse_json(json, key, g_tmp_value);
if (strlen(g_tmp_value) == 0) return 0;
return (uint32_t)strtoul(g_tmp_value, NULL, 10);
}
static uint8_t json_get_bool_field(const char *json, const char *key) {
reset_tmp();
simple_parse_json(json, key, g_tmp_value);
if (strstr(g_tmp_value, "true")) return 1;
return 0;
}
/*===========================================================================
* Frame parser: extract line-delimited JSON frames from receive buffer
*===========================================================================*/
static int json_extract_frame(uint8_t *buf, uint16_t *len, char *frame_out, uint16_t frame_size) {
uint16_t i;
for (i = 0; i < *len; i++) {
if (buf[i] == '\n') {
uint16_t frame_len = i;
if (frame_len >= frame_size) frame_len = frame_size - 1;
memcpy(frame_out, buf, frame_len);
frame_out[frame_len] = '\0';
// Remove consumed frame from buffer
uint16_t remaining = *len - i - 1;
if (remaining > 0) {
memmove(buf, buf + i + 1, remaining);
}
*len = remaining;
return 1;
}
}
return 0; // no complete frame yet
}
/*===========================================================================
* Command Handlers
*===========================================================================*/
/* 4.1 pwd_verify */
static void handle_pwd_verify(uint8_t socket, uint32_t msg_id, const char *json) {
PRINT("JSON: pwd_verify handler entered\n");
char *data = json_get_data_str(json);
if (!data) {
PRINT("JSON: pwd_verify — data is NULL\n");
json_send_error(socket, msg_id, "pwd_verify", JSON_CODE_PARAM_ERR, "missing data");
return;
}
PRINT("JSON: pwd_verify — data=[%s]\n", data);
char password[16] = {0};
json_get_str_field(data, "\"password\"", password, sizeof(password));
free(data);
PRINT("JSON: pwd_verify — password=[%s] len=%d\n", password, strlen(password));
PRINT("JSON: pwd_verify — dev_pwd=[%c%c%c%c%c%c]\n",
g_dev_password[0], g_dev_password[1], g_dev_password[2],
g_dev_password[3], g_dev_password[4], g_dev_password[5]);
if (strlen(password) == 0) {
json_send_error(socket, msg_id, "pwd_verify", JSON_CODE_PARAM_ERR, "missing password");
return;
}
// Compare password
if (memcmp(password, g_dev_password, 6) == 0 && strlen(password) == 6) {
g_json_auth_state = JSON_STATE_AUTHED;
g_json_pwd_retry = 0;
g_json_auth_timer = 0;
json_send_ok(socket, msg_id, "pwd_verify", NULL);
PRINT("JSON: Auth success\n");
} else {
g_json_pwd_retry++;
if (g_json_pwd_retry >= TCP_JSON_MAX_PWD_RETRY) {
g_json_auth_state = JSON_STATE_LOCKOUT;
g_json_lockout_timer = mstick();
PRINT("JSON: Auth locked out (%d retries)\n", g_json_pwd_retry);
json_send_error(socket, msg_id, "pwd_verify", JSON_CODE_AUTH_FAIL,
"password incorrect, locked out for 60s");
} else {
json_send_error(socket, msg_id, "pwd_verify", JSON_CODE_AUTH_FAIL, "password incorrect");
}
}
}
/* 4.2 dev_serial_set */
static void handle_dev_serial_set(uint8_t socket, uint32_t msg_id, const char *json) {
char *data = json_get_data_str(json);
if (!data) {
json_send_error(socket, msg_id, "dev_serial_set", JSON_CODE_PARAM_ERR, "missing data");
return;
}
char serial[32] = {0};
json_get_str_field(data, "\"dev_serial\"", serial, sizeof(serial));
free(data);
if (strlen(serial) != 12) {
json_send_error(socket, msg_id, "dev_serial_set", JSON_CODE_PARAM_ERR, "invalid serial length");
return;
}
// Convert hex string to bytes
uint8_t serial_bytes[6];
for (int i = 0; i < 6; i++) {
char hex[3] = {serial[i * 2], serial[i * 2 + 1], '\0'};
serial_bytes[i] = (uint8_t)strtoul(hex, NULL, 16);
}
alter_dev_serila(serial_bytes);
memcpy(g_dev_number, serial_bytes, 6);
sprintf(g_dev_number_str, "%02X%02X%02X%02X%02X%02X",
g_dev_number[0], g_dev_number[1], g_dev_number[2],
g_dev_number[3], g_dev_number[4], g_dev_number[5]);
json_send_ok(socket, msg_id, "dev_serial_set", NULL);
PRINT("JSON: dev_serial_set -> %s\n", g_dev_number_str);
}
/* 4.3 dev_info_query */
static void handle_dev_info_query(uint8_t socket, uint32_t msg_id, const char *json) {
char data_json[512];
snprintf(data_json, sizeof(data_json),
"{\"dev_serial\":\"%s\",\"hard_ver\":\"%s\",\"soft_ver\":\"%s\","
"\"model\":\"%s\",\"product_code\":\"960001\","
"\"sub_code\":{\"net\":%s,\"iot\":%s},"
"\"bus\":{\"bus1\":0,\"bus2\":0,\"bus3\":0,\"bus4\":0}}",
g_dev_number_str, HARDWARE_VER, FIRMWARE_VER,
PRODUCT_MODEL,
g_sub_code_enable.net_enable ? "true" : "false",
g_sub_code_enable.iot_enable ? "true" : "false");
json_send_ok(socket, msg_id, "dev_info_query", data_json);
}
/* 4.4 ssc_net_set */
static void handle_ssc_net_set(uint8_t socket, uint32_t msg_id, const char *json) {
char *data = json_get_data_str(json);
if (!data) {
json_send_error(socket, msg_id, "ssc_net_set", JSON_CODE_PARAM_ERR, "missing data");
return;
}
Local_Net_Cfg lcfg = local_net_cfg; // copy current
NET_CENTER_INFO ccfg = net_center_info;
char ip_str[16] = {0};
json_get_str_field(data, "\"dev_ip\"", ip_str, sizeof(ip_str));
if (strlen(ip_str) > 0) get_ipstr_to_array(ip_str, lcfg.lip);
char mask_str[16] = {0};
json_get_str_field(data, "\"subnet_mask\"", mask_str, sizeof(mask_str));
if (strlen(mask_str) > 0) get_ipstr_to_array(mask_str, lcfg.sub);
char gw_str[16] = {0};
json_get_str_field(data, "\"route_ip\"", gw_str, sizeof(gw_str));
if (strlen(gw_str) > 0) get_ipstr_to_array(gw_str, lcfg.gw);
char lssc_ip_str[16] = {0};
json_get_str_field(data, "\"lssc_ip\"", lssc_ip_str, sizeof(lssc_ip_str));
if (strlen(lssc_ip_str) > 0) get_ipstr_to_array(lssc_ip_str, ccfg.lssc_ip);
char dns_str[16] = {0};
json_get_str_field(data, "\"dns\"", dns_str, sizeof(dns_str));
if (strlen(dns_str) > 0) get_ipstr_to_array(dns_str, lcfg.dns);
uint32_t port = json_get_uint_field(data, "\"port\"");
if (port > 0 && port <= 65535) ccfg.tcp_port = (uint16_t)port;
free(data);
// Write to flash and update globals
write_net_config(&lcfg, &ccfg, &iot_net_info, &g_iot_topic);
local_net_cfg = lcfg;
net_center_info = ccfg;
json_send_ok(socket, msg_id, "ssc_net_set", NULL);
PRINT("JSON: ssc_net_set done\n");
}
/* 4.5 ssc_net_query */
static void handle_ssc_net_query(uint8_t socket, uint32_t msg_id, const char *json) {
char data_json[400];
snprintf(data_json, sizeof(data_json),
"{\"dev_ip\":\"%d.%d.%d.%d\",\"subnet_mask\":\"%d.%d.%d.%d\","
"\"route_ip\":\"%d.%d.%d.%d\",\"lssc_ip\":\"%d.%d.%d.%d\","
"\"dns\":\"%d.%d.%d.%d\",\"port\":%d}",
local_net_cfg.lip[0], local_net_cfg.lip[1], local_net_cfg.lip[2], local_net_cfg.lip[3],
local_net_cfg.sub[0], local_net_cfg.sub[1], local_net_cfg.sub[2], local_net_cfg.sub[3],
local_net_cfg.gw[0], local_net_cfg.gw[1], local_net_cfg.gw[2], local_net_cfg.gw[3],
net_center_info.lssc_ip[0], net_center_info.lssc_ip[1],
net_center_info.lssc_ip[2], net_center_info.lssc_ip[3],
local_net_cfg.dns[0], local_net_cfg.dns[1], local_net_cfg.dns[2], local_net_cfg.dns[3],
net_center_info.tcp_port);
json_send_ok(socket, msg_id, "ssc_net_query", data_json);
}
/* 4.6 iot_net_set */
static void handle_iot_net_set(uint8_t socket, uint32_t msg_id, const char *json) {
char *data = json_get_data_str(json);
if (!data) {
json_send_error(socket, msg_id, "iot_net_set", JSON_CODE_PARAM_ERR, "missing data");
return;
}
IOT_NET_INFO icfg = iot_net_info;
char host[64] = {0};
json_get_str_field(data, "\"host\"", host, sizeof(host));
if (strlen(host) > 0) strncpy((char *)icfg.remote_addr, host, 63);
uint32_t port = json_get_uint_field(data, "\"port\"");
if (port > 0 && port <= 65535) icfg.mqtt_port = (uint16_t)port;
char client_id[64] = {0};
json_get_str_field(data, "\"client_id\"", client_id, sizeof(client_id));
if (strlen(client_id) > 0) strncpy((char *)icfg.client_id, client_id, 63);
char username[64] = {0};
json_get_str_field(data, "\"username\"", username, sizeof(username));
if (strlen(username) > 0) strncpy((char *)icfg.username, username, 63);
char password[32] = {0};
json_get_str_field(data, "\"password\"", password, sizeof(password));
if (strlen(password) > 0) strncpy((char *)icfg.password, password, 31);
free(data);
write_net_config(&local_net_cfg, &net_center_info, &icfg, &g_iot_topic);
iot_net_info = icfg;
json_send_ok(socket, msg_id, "iot_net_set", NULL);
PRINT("JSON: iot_net_set done\n");
}
/* 4.7 iot_net_query */
static void handle_iot_net_query(uint8_t socket, uint32_t msg_id, const char *json) {
char data_json[400];
snprintf(data_json, sizeof(data_json),
"{\"host\":\"%s\",\"port\":%d,\"client_id\":\"%s\","
"\"username\":\"%s\",\"password\":\"%s\"}",
iot_net_info.remote_addr, iot_net_info.mqtt_port,
iot_net_info.client_id, iot_net_info.username, iot_net_info.password);
json_send_ok(socket, msg_id, "iot_net_query", data_json);
}
/* 4.8 iot_topic_set */
static void handle_iot_topic_set(uint8_t socket, uint32_t msg_id, const char *json) {
char *data = json_get_data_str(json);
if (!data) {
json_send_error(socket, msg_id, "iot_topic_set", JSON_CODE_PARAM_ERR, "missing data");
return;
}
IOT_Topic topic = g_iot_topic;
topic.clientid_enable = json_get_bool_field(data, "\"client_id_enable\"");
char topic_pub[64] = {0};
json_get_str_field(data, "\"topic_pub\"", topic_pub, sizeof(topic_pub));
if (strlen(topic_pub) > 0) strncpy((char *)topic.topic_pub, topic_pub, 63);
char topic_sub[64] = {0};
json_get_str_field(data, "\"topic_sub\"", topic_sub, sizeof(topic_sub));
if (strlen(topic_sub) > 0) strncpy((char *)topic.topic_sub, topic_sub, 63);
free(data);
write_net_config(&local_net_cfg, &net_center_info, &iot_net_info, &topic);
g_iot_topic = topic;
json_send_ok(socket, msg_id, "iot_topic_set", NULL);
PRINT("JSON: iot_topic_set done\n");
}
/* 4.9 iot_topic_query */
static void handle_iot_topic_query(uint8_t socket, uint32_t msg_id, const char *json) {
char data_json[300];
snprintf(data_json, sizeof(data_json),
"{\"client_id_enable\":%s,\"topic_pub\":\"%s\",\"topic_sub\":\"%s\"}",
g_iot_topic.clientid_enable ? "true" : "false",
g_iot_topic.topic_pub, g_iot_topic.topic_sub);
json_send_ok(socket, msg_id, "iot_topic_query", data_json);
}
/* 4.10 pwd_set */
static void handle_pwd_set(uint8_t socket, uint32_t msg_id, const char *json) {
char *data = json_get_data_str(json);
if (!data) {
json_send_error(socket, msg_id, "pwd_set", JSON_CODE_PARAM_ERR, "missing data");
return;
}
char old_pwd[16] = {0}, new_pwd[16] = {0};
json_get_str_field(data, "\"old_password\"", old_pwd, sizeof(old_pwd));
json_get_str_field(data, "\"new_password\"", new_pwd, sizeof(new_pwd));
free(data);
if (strlen(old_pwd) != 6 || strlen(new_pwd) != 6) {
json_send_error(socket, msg_id, "pwd_set", JSON_CODE_PARAM_ERR, "password must be 6 digits");
return;
}
if (memcmp(old_pwd, g_dev_password, 6) != 0) {
json_send_error(socket, msg_id, "pwd_set", JSON_CODE_AUTH_FAIL, "old password incorrect");
return;
}
memcpy(g_dev_password, new_pwd, 6);
set_ble_safe_pass((uint8_t *)new_pwd);
json_send_ok(socket, msg_id, "pwd_set", NULL);
PRINT("JSON: pwd_set done\n");
}
/* 4.11 factory_reset */
static void handle_factory_reset(uint8_t socket, uint32_t msg_id, const char *json) {
json_send_ok(socket, msg_id, "factory_reset", NULL);
PRINT("JSON: factory_reset — resetting...\n");
Delay_Ms(100);
factory_dev_info();
Delay_Ms(100);
NVIC_SystemReset();
}
/* 4.12 device_reset */
static void handle_device_reset(uint8_t socket, uint32_t msg_id, const char *json) {
// No response — device resets immediately
char *out = (char *)malloc(128);
if (out) {
snprintf(out, 128,
"{\"msg_id\":%lu,\"cmd\":\"device_reset\",\"ts\":%lu,\"code\":0,\"msg\":\"resetting\"}\n",
msg_id, (unsigned long)mstick());
uint32_t slen = strlen(out);
WCHNET_SocketSend(socket, (uint8_t *)out, &slen);
free(out);
}
Delay_Ms(100);
NVIC_SystemReset();
}
/* 4.13 loop_param_set — 设置地感线圈多路参数 (CMD 0x63) */
static void handle_loop_param_set(uint8_t socket, uint32_t msg_id, const char *json) {
char *data = json_get_data_str(json);
if (!data) {
json_send_error(socket, msg_id, "loop_param_set", JSON_CODE_PARAM_ERR, "missing data");
return;
}
LUP_ParamSet ps;
memset(&ps, 0, sizeof(ps));
ps.auto_mode = (uint8_t)json_get_uint_field(data, "\"auto_mode\"");
// Parse channels array
// Use a simple approach: parse top-level fields for each known channel key
uint32_t amount = json_get_uint_field(data, "\"amount\"");
if (amount == 0 || amount > LUP_COIL_COUNT) {
amount = LUP_COIL_COUNT;
}
ps.amount = (uint8_t)amount;
// Parse per-channel data
char ch_key[16];
uint8_t ch;
for (ch = 0; ch < ps.amount; ch++) {
snprintf(ch_key, sizeof(ch_key), "\"ch%d\"", ch + 1);
char ch_data[512] = {0};
reset_tmp();
simple_parse_json(data, ch_key, g_tmp_value);
if (strlen(g_tmp_value) == 0) continue;
strncpy(ch_data, g_tmp_value, sizeof(ch_data) - 1);
LUP_CoilParam *cp = &ps.params[ch];
// sensitivity: 低4位=灵敏度, 高4位=freq_level
uint32_t sens_val = json_get_uint_field(ch_data, "\"sensitivity\"");
uint32_t freq_lev = json_get_uint_field(ch_data, "\"freq_level\""); // 0~3
cp->sensitivity = ((uint8_t)(freq_lev & 0x03) << 4) | (uint8_t)(sens_val & 0x0F);
cp->loop_delay = (uint8_t)json_get_uint_field(ch_data, "\"loop_delay\"");
// output_mode: 低3位=输出方式, 高5位=SafeMode
uint32_t out_mode = json_get_uint_field(ch_data, "\"output_mode\"");
uint32_t safe_mode = json_get_uint_field(ch_data, "\"safe_mode\"");
cp->output_mode = ((uint8_t)(safe_mode & 0x1F) << 3) | (uint8_t)(out_mode & 0x07);
cp->exist_mode = (uint8_t)json_get_uint_field(ch_data, "\"exist_mode\"");
// direction_mode: 低3位=方向模式, 高4位=Function_Mode
uint32_t dir_mode = json_get_uint_field(ch_data, "\"direction_mode\"");
uint32_t func_mode = json_get_uint_field(ch_data, "\"function_mode\"");
cp->direction_mode = ((uint8_t)(func_mode & 0x0F) << 4) | (uint8_t)(dir_mode & 0x07);
}
free(data);
// Send to Loop MCU and defer response
lup_send_set_param(&ps);
// Save pending state for async response
g_json_pending.active = 1;
g_json_pending.socket = socket;
g_json_pending.msg_id = msg_id;
strncpy(g_json_pending.cmd, "loop_param_set", sizeof(g_json_pending.cmd) - 1);
g_json_pending.deadline = mstick() + 500;
PRINT("JSON: loop_param_set sent (ch=%d)\n", ps.amount);
}
/* 4.14 loop_param_query — 读取地感线圈多路参数 (CMD 0x64) */
static void handle_loop_param_query(uint8_t socket, uint32_t msg_id, const char *json) {
// Send query to Loop MCU and defer response
lup_send_get_param();
g_json_pending.active = 1;
g_json_pending.socket = socket;
g_json_pending.msg_id = msg_id;
strncpy(g_json_pending.cmd, "loop_param_query", sizeof(g_json_pending.cmd) - 1);
g_json_pending.deadline = mstick() + 500;
PRINT("JSON: loop_param_query sent\n");
}
/* 4.15 report_config */
static void handle_report_config(uint8_t socket, uint32_t msg_id, const char *json) {
char *data = json_get_data_str(json);
if (!data) {
json_send_error(socket, msg_id, "report_config", JSON_CODE_PARAM_ERR, "missing data");
return;
}
// Store report config for future push support
free(data);
json_send_ok(socket, msg_id, "report_config", NULL);
PRINT("JSON: report_config (push not yet implemented)\n");
}
/*===========================================================================
* Command Dispatch Table
*===========================================================================*/
typedef struct {
const char *cmd;
void (*handler)(uint8_t socket, uint32_t msg_id, const char *json);
uint8_t need_auth; // 1 = requires auth, 0 = pre-auth ok
} JsonCmdEntry;
static const JsonCmdEntry g_cmd_table[] = {
{"pwd_verify", handle_pwd_verify, 0},
{"dev_serial_set", handle_dev_serial_set, 1},
{"dev_info_query", handle_dev_info_query, 1},
{"ssc_net_set", handle_ssc_net_set, 1},
{"ssc_net_query", handle_ssc_net_query, 1},
{"iot_net_set", handle_iot_net_set, 1},
{"iot_net_query", handle_iot_net_query, 1},
{"iot_topic_set", handle_iot_topic_set, 1},
{"iot_topic_query", handle_iot_topic_query, 1},
{"pwd_set", handle_pwd_set, 1},
{"factory_reset", handle_factory_reset, 1},
{"device_reset", handle_device_reset, 1},
{"loop_param_set", handle_loop_param_set, 1},
{"loop_param_query", handle_loop_param_query, 1},
{"report_config", handle_report_config, 1},
};
#define JSON_CMD_COUNT (sizeof(g_cmd_table) / sizeof(g_cmd_table[0]))
/*===========================================================================
* Frame Processing
*===========================================================================*/
static void json_process_frame(uint8_t socket, const char *frame) {
if (strlen(frame) == 0) return;
uint32_t msg_id = json_get_msg_id(frame);
char cmd[32] = {0};
json_get_cmd(frame, cmd, sizeof(cmd));
PRINT("JSON dispatch: msg_id=%lu cmd=[%s] len=%d\n", msg_id, cmd, strlen(cmd));
if (strlen(cmd) == 0) {
PRINT("JSON: empty cmd, sending error\n");
json_send_error(socket, msg_id, "", JSON_CODE_PARAM_ERR, "missing cmd field");
return;
}
// Dispatch
int handled = 0;
for (int i = 0; i < JSON_CMD_COUNT; i++) {
if (strcmp(cmd, g_cmd_table[i].cmd) == 0) {
PRINT("JSON: matched cmd[%d]=%s, need_auth=%d, auth_state=%d\n",
i, g_cmd_table[i].cmd, g_cmd_table[i].need_auth, g_json_auth_state);
// Check auth
if (g_cmd_table[i].need_auth && g_json_auth_state != JSON_STATE_AUTHED) {
json_send_error(socket, msg_id, cmd, JSON_CODE_NOT_AUTHED, "not authenticated");
handled = 1;
break;
}
PRINT("JSON: calling handler for %s\n", cmd);
g_cmd_table[i].handler(socket, msg_id, frame);
handled = 1;
break;
}
}
if (!handled) {
json_send_error(socket, msg_id, cmd, JSON_CODE_UNSUPPORTED, "unsupported command");
PRINT("JSON: unsupported cmd: [%s]\n", cmd);
}
}
/*===========================================================================
* Public API
*===========================================================================*/
void tcp_json_srv_init(void) {
uint8_t ret;
SOCK_INF sock_inf;
memset(&sock_inf, 0, sizeof(SOCK_INF));
sock_inf.SourPort = TCP_JSON_PORT;
sock_inf.ProtoType = PROTO_TYPE_TCP;
sock_inf.RecvBufLen = RECE_BUF_LEN;
ret = WCHNET_SocketCreat(&g_json_socket_listen, &sock_inf);
if (ret != WCHNET_ERR_SUCCESS) {
PRINT("JSON: SocketCreat failed: 0x%02X\n", ret);
return;
}
ret = WCHNET_SocketListen(g_json_socket_listen);
if (ret != WCHNET_ERR_SUCCESS) {
PRINT("JSON: SocketListen failed: 0x%02X\n", ret);
return;
}
PRINT("JSON: TCP listen on port %d (socket %d)\n", TCP_JSON_PORT, g_json_socket_listen);
}
void tcp_json_handle_sock_int(uint8_t socketid, uint8_t intstat) {
// === CONNECT: client connected — configure recv buffer, init auth state ===
if (intstat & SINT_STAT_CONNECT) {
WCHNET_ModifyRecvBuf(socketid, (uint32_t)g_json_wchnet_buf, RECE_BUF_LEN);
g_json_auth_state = JSON_STATE_WAIT_AUTH;
g_json_pwd_retry = 0;
g_json_auth_timer = mstick();
g_json_recv_len = 0;
memset(g_json_recv_buf, 0, sizeof(g_json_recv_buf));
PRINT("JSON: Client connected on socket %d, recv buf configured\n", socketid);
}
// === RECV: read and process incoming data ===
if (intstat & SINT_STAT_RECV) {
uint32_t recv_len = WCHNET_SocketRecvLen(socketid, NULL);
if (recv_len > 0) {
uint16_t space = TCP_JSON_RECV_BUF_LEN - g_json_recv_len;
if (recv_len > space) recv_len = space;
uint32_t rd_len = recv_len;
uint8_t tmp_buf[RECE_BUF_LEN];
WCHNET_SocketRecv(socketid, tmp_buf, &rd_len);
memcpy(g_json_recv_buf + g_json_recv_len, tmp_buf, (uint16_t)rd_len);
g_json_recv_len += (uint16_t)rd_len;
char frame[TCP_JSON_MAX_FRAME];
while (json_extract_frame(g_json_recv_buf, &g_json_recv_len, frame, sizeof(frame))) {
PRINT("JSON recv: %s\n", frame);
json_process_frame(socketid, frame);
if (g_json_auth_state == JSON_STATE_WAIT_AUTH) {
g_json_auth_timer = mstick();
}
}
if (g_json_recv_len >= TCP_JSON_MAX_FRAME) {
PRINT("JSON: frame overflow, discarding buffer\n");
g_json_recv_len = 0;
memset(g_json_recv_buf, 0, sizeof(g_json_recv_buf));
}
}
}
// === DISCONNECT: client disconnected, reset state ===
if (intstat & SINT_STAT_DISCONNECT) {
PRINT("JSON: Client disconnected (id=%d)\n", socketid);
g_json_auth_state = JSON_STATE_WAIT_AUTH;
g_json_pwd_retry = 0;
g_json_recv_len = 0;
}
// === TIMEOUT: connection timed out ===
if (intstat & SINT_STAT_TIM_OUT) {
PRINT("JSON: Client timeout (id=%d)\n", socketid);
g_json_auth_state = JSON_STATE_WAIT_AUTH;
g_json_pwd_retry = 0;
g_json_recv_len = 0;
}
}
/*===========================================================================
* Deferred Response Helpers
*===========================================================================*/
/*
* Format coil param query response as JSON
*/
static int format_loop_param_json(char *buf, uint16_t buf_size, const LUP_ParamGet *pg) {
const char *freq_level_names[] = {"high", "mid_high", "mid_low", "low"};
char *p = buf;
int remaining = buf_size;
int written;
uint8_t i;
written = snprintf(p, remaining,
"{\"auto_mode\":%s,\"amount\":%d,\"channels\":[",
pg->auto_mode ? "true" : "false", pg->amount);
if (written < 0 || written >= remaining) return -1;
p += written; remaining -= written;
for (i = 0; i < pg->amount; i++) {
const LUP_CoilParam *cp = &pg->params[i];
uint8_t freq_lev = (cp->sensitivity >> 4) & 0x03;
uint8_t sens = cp->sensitivity & 0x0F;
uint8_t out_mode = cp->output_mode & 0x07;
uint8_t safe_mod = (cp->output_mode >> 3) & 0x1F;
uint8_t dir_mode = cp->direction_mode & 0x07;
uint8_t func_mod = (cp->direction_mode >> 4) & 0x0F;
written = snprintf(p, remaining,
"%s{\"ch\":%d,\"sensitivity\":%d,\"freq_level\":\"%s\","
"\"loop_delay\":%d,\"output_mode\":%d,\"safe_mode\":%d,"
"\"exist_mode\":%d,\"direction_mode\":%d,\"function_mode\":%d,"
"\"freq_initial\":%lu,\"freq_current\":%lu,\"freq_diff\":%lu}",
(i > 0) ? "," : "",
i + 1, sens, freq_level_names[freq_lev],
cp->loop_delay, out_mode, safe_mod,
cp->exist_mode, dir_mode, func_mod,
pg->freq[i][0], pg->freq[i][1], pg->freq[i][2]);
if (written < 0 || written >= remaining) return -1;
p += written; remaining -= written;
}
written = snprintf(p, remaining, "]}");
if (written < 0 || written >= remaining) return -1;
return 0;
}
/*
* Format sensor report as JSON
*/
static int format_sensor_json(char *buf, uint16_t buf_size, const LUP_SensorReport *sr) {
const char *freq_level_names[] = {"high", "mid_high", "mid_low", "low"};
char *p = buf;
int remaining = buf_size;
int written;
uint8_t i;
written = snprintf(p, remaining,
"{\"sens_type\":\"multi_coil\",\"sub_amount\":%d,\"sub_seq\":%d,\"coils\":[",
sr->sub_amount, sr->sub_sequence);
if (written < 0 || written >= remaining) return -1;
p += written; remaining -= written;
for (i = 0; i < sr->coil_count; i++) {
const LUP_CoilSensor *cs = &sr->coils[i];
const char *misc_field;
uint32_t misc_val;
switch (cs->misc_type) {
case 0: misc_field = "\"passtime_ms5\""; misc_val = cs->misc.passtime_ms5; break;
case 1: misc_field = "\"cut_amount\""; misc_val = cs->misc.cut_amount; break;
case 2: misc_field = "\"flow_amount\""; misc_val = cs->misc.flow_amount; break;
default: misc_field = "\"misc\""; misc_val = 0; break;
}
written = snprintf(p, remaining,
"%s{\"ch\":%d,\"freq_level\":\"%s\",\"direction\":%d,"
"\"freq_type\":\"%s\",\"sensitivity\":%d,"
"\"condition\":%d,\"loop_state\":\"%s\",\"car_state\":\"%s\","
"\"freq\":%lu,\"variation\":%d,%s:%lu}",
(i > 0) ? "," : "",
i + 1,
freq_level_names[cs->freq_level],
cs->direction,
cs->freq_type ? "current" : "initial",
cs->sensitivity,
cs->condition,
cs->loop_state ? "broken" : "normal",
cs->car_state ? "car" : "no_car",
cs->freq,
cs->variation,
misc_field, misc_val);
if (written < 0 || written >= remaining) return -1;
p += written; remaining -= written;
}
written = snprintf(p, remaining, "]}");
if (written < 0 || written >= remaining) return -1;
return 0;
}
/*
* Check for and handle pending Loop MCU deferred responses
*/
static void json_check_pending(void) {
if (!g_json_pending.active) return;
uint8_t cmd = g_lup_cmd.pending_cmd;
if (g_lup_cmd.state == LUP_STATE_RESPONSE_READY) {
// Response received!
if (strcmp(g_json_pending.cmd, "loop_param_set") == 0) {
uint8_t success = 0;
int ret = lup_parse_set_param_resp(g_lup_cmd.resp_buf, g_lup_cmd.resp_len, &success);
if (ret == 0 && success) {
json_send_ok(g_json_pending.socket, g_json_pending.msg_id,
g_json_pending.cmd, NULL);
} else {
json_send_error(g_json_pending.socket, g_json_pending.msg_id,
g_json_pending.cmd, JSON_CODE_INTERNAL_ERR,
ret == 0 ? "Loop MCU returned failure" : "Parse error");
}
} else if (strcmp(g_json_pending.cmd, "loop_param_query") == 0) {
LUP_ParamGet pg;
memset(&pg, 0, sizeof(pg));
int ret = lup_parse_param_get(g_lup_cmd.resp_buf, g_lup_cmd.resp_len, &pg);
if (ret == 0) {
char data_json[2048];
if (format_loop_param_json(data_json, sizeof(data_json), &pg) == 0) {
json_send_ok(g_json_pending.socket, g_json_pending.msg_id,
g_json_pending.cmd, data_json);
} else {
json_send_error(g_json_pending.socket, g_json_pending.msg_id,
g_json_pending.cmd, JSON_CODE_INTERNAL_ERR,
"Response too large");
}
} else {
json_send_error(g_json_pending.socket, g_json_pending.msg_id,
g_json_pending.cmd, JSON_CODE_INTERNAL_ERR,
"Failed to parse Loop MCU response");
}
}
lup_cmd_done();
g_json_pending.active = 0;
PRINT("JSON: deferred response sent for %s\n", g_json_pending.cmd);
}
else if (g_lup_cmd.state == LUP_STATE_TIMEOUT
|| mstick() > g_json_pending.deadline) {
// Timeout
json_send_error(g_json_pending.socket, g_json_pending.msg_id,
g_json_pending.cmd, JSON_CODE_BUSY,
"Loop MCU no response");
lup_cmd_done();
g_json_pending.active = 0;
PRINT("JSON: deferred response timeout for %s\n", g_json_pending.cmd);
}
}
/*===========================================================================
* tcp_json_poll (updated)
*===========================================================================*/
void tcp_json_poll(void) {
// Only poll if we have an active connection (socket configured)
if (g_json_socket_listen == 0xFF) return;
// Auth timeout check
if (g_json_auth_state == JSON_STATE_WAIT_AUTH) {
if (mstick() - g_json_auth_timer > TCP_JSON_AUTH_TIMEOUT_MS) {
PRINT("JSON: Auth timeout, closing connection\n");
WCHNET_SocketClose(g_json_socket_listen, TCP_CLOSE_NORMAL);
g_json_auth_state = JSON_STATE_WAIT_AUTH;
g_json_pwd_retry = 0;
g_json_recv_len = 0;
}
}
// Lockout timeout check
if (g_json_auth_state == JSON_STATE_LOCKOUT) {
if (mstick() - g_json_lockout_timer > TCP_JSON_LOCKOUT_TIMEOUT_MS) {
PRINT("JSON: Lockout expired\n");
g_json_auth_state = JSON_STATE_WAIT_AUTH;
g_json_pwd_retry = 0;
}
}
// Check for pending Loop MCU deferred responses
json_check_pending();
}
/*===========================================================================
* tcp_json_push_sensor — Push sensor data (0xC0) to connected TCP client
*
* Called from main loop when uart_srv() has a sensor report frame in
* g_pkg_uart_2 that hasn't been consumed by BLE.
*===========================================================================*/
void tcp_json_push_sensor(void) {
// Check: socket active, authed, and data available
if (g_json_socket_listen == 0xFF) return;
if (g_json_auth_state != JSON_STATE_AUTHED) return;
// Only proceed if g_pkg_uart_2 has data and it's a 0xC0 sensor report
if (g_pkg_uart_2.flag == 0) return;
if (g_pkg_uart_2.pkg[0] != 0x7F) return;
if (g_pkg_uart_2.pkg[3] != 0xC0) return;
LUP_SensorReport sr;
memset(&sr, 0, sizeof(sr));
int ret = lup_parse_sensor_report(g_pkg_uart_2.pkg, g_pkg_uart_2.offset, &sr);
if (ret != 0) {
PRINT("JSON: sensor parse failed (%d)\n", ret);
InitPkgUart(&g_pkg_uart_2);
return;
}
char data_json[2048];
if (format_sensor_json(data_json, sizeof(data_json), &sr) == 0) {
char *out = (char *)malloc(TCP_JSON_MAX_FRAME);
if (out) {
snprintf(out, TCP_JSON_MAX_FRAME,
"{\"msg_id\":0,\"cmd\":\"sensor_report\",\"ts\":%lu,"
"\"code\":0,\"msg\":\"success\",\"data\":%s}\n",
(unsigned long)mstick(), data_json);
uint32_t slen = strlen(out);
WCHNET_SocketSend(g_json_socket_listen, (uint8_t *)out, &slen);
free(out);
}
}
// Clear after processing
InitPkgUart(&g_pkg_uart_2);
}