4G module EC200A NetworkInfo acquirement

APP_Framework/Framework/connection/4g/adapter_4g.c

@@ -136,6 +136,8 @@ int Adapter4GTest(void)
     AdapterDeviceOpen(adapter);
     AdapterDeviceControl(adapter, OPE_INT, &baud_rate);
 
+    AdapterDeviceNetstat(adapter);
+
     AdapterDeviceConnect(adapter, CLIENT, server_addr, server_port, IPV4);
 
     while (1) {

APP_Framework/Framework/connection/4g/ec200a/ec200a.c

@@ -376,8 +376,138 @@ out:
     return -1;
 }
 
-static int Ec200aNetstat() {
+static void extractCarrierInfo(const char *response, struct NetworkInfo *networkInfo)
+{
+    const char *delimiter = "\"";
+    const char *token;
 
+    token = strtok(response, delimiter);
+    token = strtok(NULL, delimiter);
+
+    if (strcmp(token, "CHINA MOBILE") == 0) {
+        networkInfo->carrier_type = CARRIER_CHINA_MOBILE;
+    } else if (strcmp(token, "CHN-UNICOM") == 0) {
+        networkInfo->carrier_type = CARRIER_CHINA_UNICOM;
+    } else if (strcmp(token, "CHN-CT") == 0) {
+        networkInfo->carrier_type = CARRIER_CHINA_TELECOM;
+    } else {
+        networkInfo->carrier_type = CARRIER_UNKNOWN;
+    }
+}
+
+static int Ec200aNetstat(struct Adapter *adapter) {
+    char result[64] = {0};
+
+    struct NetworkInfo info = {
+        .carrier_type = CARRIER_UNKNOWN,
+        .signal_strength = 0,
+        .ip_address = "192.168.1.1"
+    };
+    
+    int ret = 0;
+    int try = 0;
+
+    AtSetReplyEndChar(adapter->agent, 0x4F, 0x4B);
+
+    /*step1: serial write "+++", quit transparent mode*/
+    PrivTaskDelay(1500); //before +++ command, wait at least 1s
+    ATOrderSend(adapter->agent, REPLY_TIME_OUT, NULL, "+++");
+    PrivTaskDelay(1500); //after +++ command, wait at least 1s
+
+    /*step2: serial write "AT+CCID", get SIM ID*/
+    for(try = 0; try < TRY_TIMES; try++){
+        ret = AtCmdConfigAndCheck(adapter->agent, EC200A_GET_QCCID_CMD, EC200A_OK_REPLY);
+        if (ret == 0) {
+            break;
+        }
+    }
+    if (ret < 0) {
+        goto out;
+    }
+
+    /*step3: serial write "AT+CPIN?", check SIM status*/
+    for(try = 0; try < TRY_TIMES; try++){
+        ret = AtCmdConfigAndCheck(adapter->agent, EC200A_GET_CPIN_CMD, EC200A_READY_REPLY);
+        if (ret == 0) {
+            break;
+        }
+    }
+    if (ret < 0) {
+        goto out;
+    }
+
+    /*step4: serial write "AT+CREG?", check whether registered to GSM net*/
+    PrivTaskDelay(1000); //before CREG command, wait 1s
+
+    for(try = 0; try < TRY_TIMES; try++){
+        ret = AtCmdConfigAndCheck(adapter->agent, EC200A_GET_CREG_CMD, EC200A_CREG_REPLY);
+        if (ret == 0) {
+            break;
+        }
+    }
+    if (ret < 0) {
+        goto out;
+    }
+
+    /*step5: serial write "AT+COPS?", get carrier type*/
+    for(try = 0; try < TRY_TIMES; try++){
+        ret = AtGetNetworkInfoReply(adapter->agent, EC200A_GET_COPS_CMD, result);
+        if (ret == 0) {
+            break;
+        }
+    }
+    if (ret < 0) {
+        goto out;
+    }
+    extractCarrierInfo(result, &info);
+    adapter->network_info.carrier_type = info.carrier_type;
+
+    /*step6: serial write "AT+CSQ", get carrier type*/
+    memset(result, 0, sizeof(result));
+    
+    for(try = 0; try < TRY_TIMES; try++){
+        ret = AtGetNetworkInfoReply(adapter->agent, EC200A_GET_CSQ_CMD, result);
+        if (ret == 0) {
+            break;
+        }
+    }
+    if (ret < 0) {
+        goto out;
+    }
+    if (sscanf(result, "AT+CSQ\n+CSQ: %d", &info.signal_strength) == 1) {
+        printf("Signal Strength: %d\n", info.signal_strength);
+        adapter->network_info.signal_strength = info.signal_strength;
+    } else {
+        printf("Failed to parse signal strength\n");
+        goto out;
+    }
+
+    /*step7: serial write "AT+CSQ", get carrier type*/
+    memset(result, 0, sizeof(result));
+    
+    for(try = 0; try < TRY_TIMES; try++){
+        ret = AtGetNetworkInfoReply(adapter->agent, EC200A_GET_POP_IP, result);
+        if (ret == 0) {
+            break;
+        }
+    }
+    if (ret < 0) {
+        goto out;
+    }
+    if (sscanf(result, "AT+CGPADDR=1\n+CGPADDR: 1,\"%15[^\"]\"", info.ip_address) == 1) {
+        printf("IP Address: %s\n", info.ip_address);
+        strcpy(adapter->network_info.ip_address, info.ip_address);
+    } else {
+        printf("Failed to parse IP address\n");
+        goto out;
+    }
+
+    return 0;
+
+out:
+    ADAPTER_DEBUG("Ec200a get netstat failed. Power down\n");
+    ret = AtCmdConfigAndCheck(adapter->agent, EC200A_CLOSE, EC200A_OK_REPLY);
+    return -1;
 }
 
 static const struct IpProtocolDone ec200a_done = 

APP_Framework/Framework/connection/adapter.h

@@ -118,6 +118,19 @@ enum IpType
     IPV6,
 };
 
+enum CarrierType {
+    CARRIER_CHINA_MOBILE = 1,
+    CARRIER_CHINA_UNICOM,
+    CARRIER_CHINA_TELECOM,
+    CARRIER_UNKNOWN,
+};
+
+struct NetworkInfo {
+    enum CarrierType carrier_type;
+    int signal_strength;
+    char ip_address[16];
+};
+
 struct AdapterData
 {
     uint32 len;
@@ -186,6 +199,8 @@ struct Adapter
     enum NetRoleType net_role;
     enum AdapterStatus adapter_status;
 
+    struct NetworkInfo network_info;
+
     char buffer[ADAPTER_BUFFSIZE];
     
     void *done;

APP_Framework/Framework/connection/adapter_agent.c

@@ -225,6 +225,43 @@ __exit:
     return ret;
 }
 
+int AtGetNetworkInfoReply(ATAgentType agent, char *cmd, char *result)
+{
+    int ret = 0;
+    if (NULL == agent || NULL == cmd) {
+        return -1;
+    }
+
+    ATReplyType reply = CreateATReply(256);
+    if (NULL == reply) {
+        printf("%s %d at_create_resp failed!\n",__func__,__LINE__);
+        ret = -1;
+        goto __exit;
+    }
+
+    ret = ATOrderSend(agent, REPLY_TIME_OUT, reply, cmd);
+    if(ret < 0){
+        printf("%s %d ATOrderSend failed.\n",__func__,__LINE__);
+        ret = -1;
+        goto __exit;
+    }
+
+    const char *replyText = GetReplyText(reply);
+    if (replyText == NULL || replyText[0] == '\0') {
+        printf("%s %n get reply failed.\n",__func__,__LINE__);
+        ret = -1;
+        goto __exit;
+    }
+
+    strncpy(result, replyText, 63);
+    result[63] = '\0';
+    printf("[reply result: %s]\n", result);
+
+__exit:
+    DeleteATReply(reply);
+    return ret;
+}
+
 char *GetReplyText(ATReplyType reply)
 {
     return reply->reply_buffer;

APP_Framework/Framework/connection/at_agent.h

@@ -104,5 +104,6 @@ int ParseATReply(char* str, const char *format, ...);
 void DeleteATReply(ATReplyType reply);
 int ATOrderSend(ATAgentType agent, uint32_t timeout_s, ATReplyType reply, const char *cmd_expr, ...);
 int AtCmdConfigAndCheck(ATAgentType agent, char *cmd, char *check);
+int AtGetNetworkInfoReply(ATAgentType agent, char *cmd, char *result);
 
 #endif