add fibocom l610

class/l610/at_device_l610.c

@@ -0,0 +1,1058 @@
+/*
+ * File      : at_socket_l610.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-10-28     zhangyang    first version
+ */
+
+
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+
+#include <at_device_l610.h>
+
+#define LOG_TAG                        "at.dev.l610"
+#include <at_log.h>
+
+
+
+#ifndef L610_DEEP_SLEEP_EN
+#define L610_DEEP_SLEEP_EN              0//module support  sleep mode
+#endif
+
+#ifdef AT_DEVICE_USING_L610
+
+#define L610_WAIT_CONNECT_TIME      5000
+#define L610_THREAD_STACK_SIZE      2048+1024
+#define L610_THREAD_PRIORITY        (RT_THREAD_PRIORITY_MAX/2)
+
+
+
+static char *CSTT_CHINA_MOBILE  = "AT+MIPCALL=1,\"CMNET\"";
+static char *CSTT_CHINA_UNICOM  = "AT+MIPCALL=1,\"3GNET\"";
+static char *CSTT_CHINA_TELECOM = "AT+MIPCALL=1,\"CTNET\"";
+
+
+static int l610_power_on(struct at_device *device)
+{
+    struct at_device_l610 *l610= RT_NULL;
+
+        l610 = (struct at_device_l610 *) device->user_data;
+		l610->power_status = RT_TRUE;
+
+	 /* not nead to set pin configuration for me3616 device power on */
+    if (l610->power_pin == -1)
+    {
+        return(RT_EOK);
+    }
+		
+	rt_pin_write(l610->power_pin, PIN_LOW);
+    rt_thread_mdelay(2000);
+    rt_pin_write(l610->power_pin, PIN_HIGH);
+    LOG_D("power on success.");
+
+    return(RT_EOK);
+}
+
+static int l610_power_off(struct at_device *device)
+{
+    struct at_device_l610 *l610 = RT_NULL;
+
+    l610 = (struct at_device_l610 *) device->user_data;
+
+    /* not nead to set pin configuration for m26 device power on */
+    if (l610->power_pin == -1)
+    {
+        return RT_EOK;
+    }
+
+    rt_pin_write(l610->power_pin, PIN_LOW);
+	rt_thread_mdelay(2000);
+    rt_pin_write(l610->power_pin, PIN_HIGH);
+		
+		 l610->power_status = RT_FALSE;
+		 LOG_D("power off success.");
+		 return(RT_EOK);
+}
+
+static int l610_sleep(struct at_device *device)
+{
+    at_response_t resp = RT_NULL;
+    struct at_device_l610 *l610 = RT_NULL;
+    
+    l610 = (struct at_device_l610 *)device->user_data;
+    if ( ! l610->power_status)//power off
+    {
+        return(RT_EOK);
+    }
+    if (l610->sleep_status)//is sleep status 
+    {
+        return(RT_EOK);
+    }
+    
+    resp = at_create_resp(64, 0, rt_tick_from_millisecond(300));
+    if (resp == RT_NULL)
+    {
+        LOG_E("no memory for resp create.");
+        return(-RT_ERROR);
+    }
+    
+    if (at_obj_exec_cmd(device->client, resp, "AT+GTWAKE=1,2") != RT_EOK)
+    {
+        LOG_D("enable sleep fail.");
+        at_delete_resp(resp);
+        return(-RT_ERROR);
+    }
+
+   #if L610_DEEP_SLEEP_EN
+    if (at_obj_exec_cmd(device->client, resp, "ATS24=1") != RT_EOK)
+    {
+        LOG_D("startup entry into sleep fail.");
+        at_delete_resp(resp);
+        return(-RT_ERROR);
+    }
+    #endif
+    at_delete_resp(resp);
+    l610->sleep_status = RT_TRUE;
+    
+    LOG_D("sleep success.");
+    
+    return(RT_EOK);
+}
+
+
+static int l610_wakeup(struct at_device *device)
+{
+    at_response_t resp = RT_NULL;
+    struct at_device_l610 *l610 = RT_NULL;
+
+    l610 = (struct at_device_l610 *)device->user_data;
+    if ( ! l610->power_status)//power off
+    {
+        LOG_E("the power is off and the wake-up cannot be performed");
+        return(-RT_ERROR);
+    }
+    if ( ! l610->sleep_status)//no sleep status
+    {
+        return(RT_EOK);
+    }
+    
+    resp = at_create_resp(64, 0, rt_tick_from_millisecond(300));
+    if (resp == RT_NULL)
+    {
+        LOG_E("no memory for resp create.");
+        return(-RT_ERROR);
+    }
+    
+    #if L610_DEEP_SLEEP_EN
+    if (l610->power_pin != -1)
+    {
+        rt_pin_write(me3616->power_pin, PIN_HIGH);
+        rt_thread_mdelay(100);
+        rt_pin_write(me3616->power_pin, PIN_LOW);
+        rt_thread_mdelay(200);
+    }
+    #endif
+		
+    if (at_obj_exec_cmd(device->client, resp, "AT+GTWAKE=0,2") != RT_EOK)
+    {
+        LOG_D("wake up fail.");
+        at_delete_resp(resp);
+        return(-RT_ERROR);
+    }
+    
+    at_delete_resp(resp);
+    l610->sleep_status = RT_FALSE;
+    
+    LOG_D("wake up success.");
+    
+    return(RT_EOK);
+}
+
+
+
+static int l610_check_link_status(struct at_device *device)
+{
+    at_response_t resp = RT_NULL;
+    struct at_device_l610 *l610 = RT_NULL;
+    int result = -RT_ERROR;
+
+    RT_ASSERT(device);
+
+    l610 = (struct at_device_l610 *)device->user_data;
+    if ( ! l610->power_status)//power off
+    {
+        LOG_D("the power is off.");
+        return(-RT_ERROR);
+    }
+    
+    #if L610_DEEP_SLEEP_EN
+    if (l610->sleep_status)//is sleep status
+    {
+        if (l610->power_pin != -1)
+        {
+            rt_pin_write(l610->power_pin, PIN_HIGH);
+            rt_thread_mdelay(100);
+            rt_pin_write(l610->power_pin, PIN_LOW);
+            rt_thread_mdelay(200);
+        }
+    }
+    #endif
+    
+    resp = at_create_resp(64, 0, rt_tick_from_millisecond(300));
+    if (resp == RT_NULL)
+    {
+        LOG_E("no memory for resp create.");
+        return(-RT_ERROR);
+    }
+
+    result = -RT_ERROR;
+    if (at_obj_exec_cmd(device->client, resp, "AT+CGREG?") == RT_EOK)
+    {
+        int link_stat = 0;
+        if (at_resp_parse_line_args_by_kw(resp, "+CGREG:", "+CGREG: %*d,%d", &link_stat) > 0)
+        {
+            if (link_stat == 1 || link_stat == 5)
+            {
+                result = RT_EOK;
+            }
+        }
+    }
+    
+    #if L610_DEEP_SLEEP_EN
+    if (l610->sleep_status)//is sleep status
+    {
+        if (at_obj_exec_cmd(device->client, resp, "ATS24=1") != RT_EOK)
+        {
+            LOG_D("startup entry into sleep fail.");
+        }
+    }
+    #endif
+    
+    at_delete_resp(resp);
+    
+    return(result);
+}
+
+
+
+/* =============================  l610 network interface operations ============================= */
+
+/* set l610 network interface device status and address information */
+static int l610_netdev_set_info(struct netdev *netdev)
+{
+#define L610_IMEI_RESP_SIZE      32
+#define L610_IPADDR_RESP_SIZE    32
+#define L610_DNS_RESP_SIZE       96
+#define L610_INFO_RESP_TIMO      rt_tick_from_millisecond(300)
+
+    int result = RT_EOK;
+    ip_addr_t addr;
+    at_response_t resp = RT_NULL;
+    struct at_device *device = RT_NULL;
+
+    RT_ASSERT(netdev);
+
+    device = at_device_get_by_name(AT_DEVICE_NAMETYPE_NETDEV, netdev->name);
+    if (device == RT_NULL)
+    {
+        LOG_E("get device(%s) failed.");
+        return -RT_ERROR;
+    }
+    /* set network interface device status */
+    netdev_low_level_set_status(netdev, RT_TRUE);
+    netdev_low_level_set_link_status(netdev, RT_TRUE);
+    netdev_low_level_set_dhcp_status(netdev, RT_TRUE);
+
+    resp = at_create_resp(L610_IMEI_RESP_SIZE, 0, L610_INFO_RESP_TIMO);
+    if (resp == RT_NULL)
+    {
+        LOG_E("no memory for resp create.");
+        result = -RT_ENOMEM;
+        goto __exit;
+    }
+
+    /* set network interface device hardware address(IMEI) */
+    {
+        #define L610_NETDEV_HWADDR_LEN   8
+        #define L610_IMEI_LEN            15
+
+        char imei[L610_IMEI_LEN] = {0};
+        int i = 0, j = 0;
+
+        /* send "AT+GSN" commond to get device IMEI */
+        if (at_obj_exec_cmd(device->client, resp, "AT+CGSN") < 0)
+        {
+            result = -RT_ERROR;
+            goto __exit;
+        }
+
+        if (at_resp_parse_line_args(resp, 2, "%s", imei) <= 0)
+        {
+            LOG_E("%s device prase \"AT+GSN\" cmd error.", device->name);
+            result = -RT_ERROR;
+            goto __exit;
+        }
+	
+        LOG_D("%s IMEI : %s", device->name, imei);
+
+        netdev->hwaddr_len = L610_NETDEV_HWADDR_LEN;
+        /* get hardware address by IMEI */
+        for (i = 0, j = 0; i < L610_NETDEV_HWADDR_LEN && j < L610_IMEI_LEN; i++, j += 2)
+        {
+            if (j != L610_IMEI_LEN - 1)
+            {
+                netdev->hwaddr[i] = (imei[j] - '0') * 10 + (imei[j + 1] - '0');
+            }
+            else
+            {
+                netdev->hwaddr[i] = (imei[j] - '0');
+            }
+        }
+
+    }
+
+
+   /* set network interface device IP address */
+    {
+        #define IP_ADDR_SIZE_MAX    16
+        char ipaddr[IP_ADDR_SIZE_MAX] = {0};
+
+        /* send "AT+CGPADDR=1" commond to get IP address */
+        if (at_obj_exec_cmd(device->client, resp, "AT+MIPCALL?") != RT_EOK)
+        {
+            result = -RT_ERROR;
+            goto __exit;
+        }
+
+        /* parse response data "+MIPCALL: 1,<IP_address>" */
+
+        if (at_resp_parse_line_args_by_kw(resp, "+MIPCALL: ","%*[^,],%s",ipaddr) <= 0)
+        {
+            LOG_E("%s device \"AT+MIPCALL?\" cmd error.", device->name);
+            result = -RT_ERROR;
+            goto __exit;
+        }
+        /* set network interface address information */
+        inet_aton(ipaddr, &addr);
+        netdev_low_level_set_ipaddr(netdev, &addr);
+    }
+
+__exit:
+    if (resp)
+    {
+        at_delete_resp(resp);
+    }
+
+    return result;
+}
+
+static void l610_check_link_status_entry(void *parameter)
+{
+	
+#define L610_LINK_DELAY_TIME  (30 * RT_TICK_PER_SECOND)
+
+	rt_bool_t is_link_up;
+    struct at_device *device = RT_NULL;
+    struct netdev *netdev = (struct netdev *)parameter;
+
+    device = at_device_get_by_name(AT_DEVICE_NAMETYPE_NETDEV, netdev->name);
+    if (device == RT_NULL)
+    {
+        LOG_E("get device(%s) failed.", netdev->name);
+        return;
+    }
+
+    while (1)
+    {
+        /* send "AT+CGREG?" commond  to check netweork interface device link status */
+		is_link_up = (l610_check_link_status(device) == RT_EOK);
+       
+        netdev_low_level_set_link_status(netdev, is_link_up);
+        rt_thread_mdelay(L610_LINK_DELAY_TIME);
+    }
+}
+
+static int l610_netdev_check_link_status(struct netdev *netdev)
+{
+#define L610_LINK_THREAD_TICK           20
+#define L610_LINK_THREAD_STACK_SIZE     (1024 + 512)
+#define L610_LINK_THREAD_PRIORITY       (RT_THREAD_PRIORITY_MAX - 2)
+
+    rt_thread_t tid;
+    char tname[RT_NAME_MAX] = {0};
+
+    RT_ASSERT(netdev);
+
+    rt_snprintf(tname, RT_NAME_MAX, "%s", netdev->name);
+
+    tid = rt_thread_create(tname, l610_check_link_status_entry, (void *) netdev,
+            L610_LINK_THREAD_STACK_SIZE, L610_LINK_THREAD_PRIORITY, L610_LINK_THREAD_TICK);
+    if (tid)
+    {
+        rt_thread_startup(tid);
+    }
+
+    return RT_EOK;
+}
+
+static int l610_net_init(struct at_device *device);
+
+static int l610_netdev_set_up(struct netdev *netdev)
+{
+    struct at_device *device = RT_NULL;
+
+    device = at_device_get_by_name(AT_DEVICE_NAMETYPE_NETDEV, netdev->name);
+    if (device == RT_NULL)
+    {
+        LOG_E("get device(%s) failed.", netdev->name);
+        return -RT_ERROR;
+    }
+
+    if (device->is_init == RT_FALSE)
+    {
+        l610_net_init(device);
+        device->is_init = RT_TRUE;
+
+        netdev_low_level_set_status(netdev, RT_TRUE);
+        LOG_D("network interface device(%s) set up status.", netdev->name);
+    }
+
+    return RT_EOK;
+}
+
+static int l610_netdev_set_down(struct netdev *netdev)
+{
+    struct at_device *device = RT_NULL;
+
+    device = at_device_get_by_name(AT_DEVICE_NAMETYPE_NETDEV, netdev->name);
+    if (device == RT_NULL)
+    {
+        LOG_E("get device(%s) failed.", netdev->name);
+        return -RT_ERROR;
+    }
+
+    if (device->is_init == RT_TRUE)
+    {
+        l610_power_off(device);
+        device->is_init = RT_FALSE;
+
+        netdev_low_level_set_status(netdev, RT_FALSE);
+        LOG_D("network interface device(%s) set down status.", netdev->name);
+    }
+
+    return RT_EOK;
+}
+
+static int l610_ping_domain_resolve(struct at_device *device, const char *name, char ip[16])
+{
+    int result = RT_EOK;
+    char recv_ipv4[16] = { 0 };
+    at_response_t resp = RT_NULL;
+
+    /* The maximum response time is 14 seconds, affected by network status */
+    resp = at_create_resp(128, 4, 14 * RT_TICK_PER_SECOND);
+    if (resp == RT_NULL)
+    {
+        LOG_E("no memory for resp create.");
+        return -RT_ENOMEM;
+    }
+
+    //		0: IPV4 address
+    //		1: IPV6 address
+    //		2:	IPV4/IPV6 address
+    //		<IP>: resolved IPV4 or IPV6 address (string without double quotes)
+    result = at_obj_exec_cmd(device->client, resp, "AT+MIPDNS=\"%s\",0", name);
+    if (result != RT_EOK)
+    {
+        LOG_E("%s device \"AT+MIPDNS=\"%s\"\" cmd error.", device->name, name);
+        goto __exit;
+    }
+
+    /* parse the third line of response data, get the IP address */
+    if (at_resp_parse_line_args_by_kw(resp, "+MIPDNS: ", "%*[^,],%s", recv_ipv4) <= 0)
+    {
+        LOG_E("%s device prase \"AT+MIPDNS=\"%s\",2\" cmd error.", device->name, name);
+        result = -RT_ERROR;
+        goto __exit;
+    }
+
+      if (at_resp_get_line_by_kw(resp, "OK")==0)
+    {
+        LOG_E("l610_ping_domain_resolve fail");
+        result = -RT_ERROR;
+        goto __exit;
+    }
+    if (rt_strlen(recv_ipv4) < 8)
+    {
+        rt_thread_mdelay(100);
+        /* resolve failed, maybe receive an URC CRLF */
+    }
+    else
+    {
+        rt_strncpy(ip, recv_ipv4, 15);
+        ip[15] = '\0';
+    }
+
+__exit:
+    if (resp)
+    {
+        at_delete_resp(resp);
+    }
+
+    return result;
+}
+
+#ifdef NETDEV_USING_PING
+static int l610_netdev_ping(struct netdev *netdev, const char *host,
+        size_t data_len, uint32_t timeout, struct netdev_ping_resp *ping_resp)
+{
+#define L610_PING_RESP_SIZE         128
+#define L610_PING_IP_SIZE           16
+#define L610_PING_TIMEO             (5 * RT_TICK_PER_SECOND)
+
+#define L610_PING_ERR_TIME          L610_PING_TIMEO
+
+    int result = RT_EOK;
+    int time, ttl=64,i,type, err_code = 0;
+    char ip_addr[L610_PING_IP_SIZE] = {0};
+    at_response_t resp = RT_NULL;
+    struct at_device *device = RT_NULL;
+
+    RT_ASSERT(netdev);
+    RT_ASSERT(host);
+    RT_ASSERT(ping_resp);
+
+    device = at_device_get_by_name(AT_DEVICE_NAMETYPE_NETDEV, netdev->name);
+    if (device == RT_NULL)
+    {
+        LOG_D("get device(%s) failed.", netdev->name);
+        return -RT_ERROR;
+    }
+ 
+    for (i = 0; i < rt_strlen(host) && !isalpha(host[i]); i++);
+
+    if (i < strlen(host))
+    {
+        /* check domain name is usable */
+        if (l610_ping_domain_resolve(device, host, ip_addr) < 0)
+        {
+            LOG_E("l610_ping_domain_resolve error");
+            return -RT_ERROR;
+        }
+        rt_memset(ip_addr, 0x00, L610_PING_IP_SIZE);
+    }
+
+    resp = at_create_resp(L610_PING_RESP_SIZE,6, L610_PING_TIMEO);
+    if (resp == RT_NULL)
+    {
+        LOG_E("no memory for resp create.");
+        return -RT_ENOMEM;
+
+    }
+	
+   // +MPING=<mode>[,<Destination_IP/hostname>[,<count>[,<size>[,<TTL>[,<TOS>[,<TimeOut>]]]]]]
+    if (at_obj_exec_cmd(device->client, resp, "AT+MPING=1,\"%s\",1,%d,%d,0,%d", host,data_len,ttl,L610_PING_TIMEO) != RT_EOK)
+    {
+        result = -RT_ERROR;
+        goto __exit;
+    }
+
+    if (at_resp_get_line_by_kw(resp, "OK")==0)
+    {
+        LOG_E("ping AT send fail");
+        result = -RT_ERROR;
+        goto __exit;
+    }
+
+    //+MPING: <Destination_IP>,<type>,<code> [,<RTT>]
+    if (at_resp_parse_line_args_by_kw(resp, "+MPING: ","+MPING: \"%[^\"]\",%d,%d,%d\r\n",
+             ip_addr,&type,&err_code,&time)<= 0)
+    {
+        LOG_E("+MPING error ");
+        result = -RT_ERROR;
+        goto __exit;
+    }
+
+    /* the ping request timeout expires*/
+    if (time>=L610_PING_ERR_TIME)
+    {
+        result = -RT_ETIMEOUT;
+        goto __exit;
+    }
+    inet_aton(ip_addr, &(ping_resp->ip_addr));
+    ping_resp->data_len = data_len;
+    /* reply time, in units of ms */
+    ping_resp->ticks = time ;
+    ping_resp->ttl = ttl;
+
+ __exit:
+    if (resp)
+    {
+        at_delete_resp(resp);
+    }
+
+    return result;
+}
+#endif /* NETDEV_USING_PING */
+
+const struct netdev_ops l610_netdev_ops =
+{
+    l610_netdev_set_up,
+    l610_netdev_set_down,
+
+    RT_NULL, /* not support set ip, netmask, gatway address */
+    RT_NULL,
+    RT_NULL, /* not support set DHCP status */
+
+#ifdef NETDEV_USING_PING
+    l610_netdev_ping,
+#endif
+    RT_NULL,
+};
+
+static struct netdev *l610_netdev_add(const char *netdev_name)
+{
+#define L610_NETDEV_MTU     1500
+#define HWADDR_LEN          8
+    struct netdev *netdev = RT_NULL;
+
+    RT_ASSERT(netdev_name);
+
+    netdev = netdev_get_by_name(netdev_name);
+    if (netdev != RT_NULL)
+    {
+        return (netdev);
+    }
+
+    netdev = (struct netdev *) rt_calloc(1, sizeof(struct netdev));
+    if (netdev == RT_NULL)
+    {
+        LOG_E("no memory for netdev create.");
+        return RT_NULL;
+    }
+
+    netdev->mtu = L610_NETDEV_MTU;
+    netdev->ops = &l610_netdev_ops;
+		netdev->hwaddr_len = HWADDR_LEN;
+
+#ifdef SAL_USING_AT
+    extern int sal_at_netdev_set_pf_info(struct netdev *netdev);
+    /* set the network interface socket/netdb operations */
+    sal_at_netdev_set_pf_info(netdev);
+#endif
+
+    netdev_register(netdev, netdev_name, RT_NULL);
+
+    return netdev;
+}
+
+/* =============================  sim76xx device operations ============================= */
+
+#define AT_SEND_CMD(client, resp, resp_line, timeout, cmd)                                         \
+    do {                                                                                           \
+        (resp) = at_resp_set_info((resp), 128, (resp_line), rt_tick_from_millisecond(timeout));    \
+        if (at_obj_exec_cmd((client), (resp), (cmd)) < 0)                                          \
+        {                                                                                          \
+            result = -RT_ERROR;                                                                    \
+            goto __exit;                                                                           \
+        }                                                                                          \
+    } while(0)                                                                                     \
+
+/* init for l610 */
+
+
+
+
+static void l610_init_thread_entry(void *parameter)
+{
+#define INIT_RETRY                     5
+#define CPIN_RETRY                     10
+#define CSQ_RETRY                      10
+#define CREG_RETRY                     10
+#define CGREG_RETRY                    20
+
+    int i, qimux, retry_num = INIT_RETRY;
+    char parsed_data[32] = {0};
+    rt_err_t result = RT_EOK;
+    at_response_t resp = RT_NULL;
+    struct at_device *device = (struct at_device *)parameter;
+    struct at_client *client = device->client;
+		
+		 
+    resp = at_create_resp(128, 0, rt_tick_from_millisecond(300));
+    if (resp == RT_NULL)
+    {
+        LOG_E("no memory for resp create.");
+        return;
+    }
+
+    while (retry_num--)
+    {
+        rt_memset(parsed_data, 0, sizeof(parsed_data));
+        rt_thread_mdelay(500);
+        l610_power_on(device);
+	
+        rt_thread_mdelay(1000);
+
+        /* wait l610 startup finish */
+        if (at_client_obj_wait_connect(client, L610_WAIT_CONNECT_TIME))
+        {
+            result = -RT_ETIMEOUT;
+            goto __exit;
+        }
+
+        /* disable echo */
+        AT_SEND_CMD(client, resp, 0, 300, "ATE0");
+        /* get module version */
+        AT_SEND_CMD(client, resp, 0, 300, "ATI");
+        /* show module version */
+        for (i = 0; i < (int)resp->line_counts - 1; i++)
+        {
+            LOG_D("%s", at_resp_get_line(resp, i + 1));
+        }
+        /* check SIM card */
+        for (i = 0; i < CPIN_RETRY; i++)
+        {				
+          AT_SEND_CMD(client, resp, 2, 5 * RT_TICK_PER_SECOND, "AT+CPIN?");
+            if (at_resp_get_line_by_kw(resp, "READY"))
+            {
+                LOG_D("%s device SIM card detection success.", device->name);
+                break;
+            }
+            rt_thread_mdelay(1000);
+        }
+        if (i == CPIN_RETRY)
+        {
+            LOG_E("%s device SIM card detection failed.", device->name);
+            result = -RT_ERROR;
+            goto __exit;
+        }
+        /* waiting for dirty data to be digested */
+        rt_thread_mdelay(10);
+
+        /* check the GSM network is registered */
+        for (i = 0; i < CREG_RETRY; i++)
+        {
+            AT_SEND_CMD(client, resp, 0, 300, "AT+CREG?");
+					
+            at_resp_parse_line_args_by_kw(resp, "+CREG:", "+CREG: %s", &parsed_data);		
+            if (!strncmp(parsed_data, "0,1", sizeof(parsed_data)) ||
+                !strncmp(parsed_data, "0,5", sizeof(parsed_data)))
+            {
+							
+                LOG_D("%s device GSM is registered(%s),", device->name, parsed_data);
+                break;
+            }
+            rt_thread_mdelay(1000);
+        }
+        if (i == CREG_RETRY)
+        {
+            LOG_E("%s device GSM is register failed(%s).", device->name, parsed_data);
+            result = -RT_ERROR;
+            goto __exit;
+        }
+        /* check the GPRS network is registered */
+        for (i = 0; i < CGREG_RETRY; i++)
+        {
+            AT_SEND_CMD(client, resp, 0, 300, "AT+CGREG?");
+
+            at_resp_parse_line_args_by_kw(resp, "+CGREG:", "+CGREG: %s", &parsed_data);
+            if (!strncmp(parsed_data, "0,1", sizeof(parsed_data)) ||
+                !strncmp(parsed_data, "0,5", sizeof(parsed_data)))
+            {
+                LOG_D("%s device GPRS is registered(%s).", device->name, parsed_data);
+                break;
+            }
+            rt_thread_mdelay(1000);
+        }
+        if (i == CGREG_RETRY)
+        {
+            LOG_E("%s device GPRS is register failed(%s).", device->name, parsed_data);
+            result = -RT_ERROR;
+            goto __exit;
+        }
+
+        /* check signal strength */
+        for (i = 0; i < CSQ_RETRY; i++)
+        {
+            AT_SEND_CMD(client, resp, 0, 300, "AT+CSQ?");
+            at_resp_parse_line_args_by_kw(resp, "+CSQ:", "+CSQ: %s", &parsed_data);
+            if (strncmp(parsed_data, "99,99", sizeof(parsed_data)))
+            {
+                LOG_D("%s device signal strength: %s", device->name, parsed_data);
+                break;
+            }
+            rt_thread_mdelay(1000);
+        }
+        if (i == CSQ_RETRY)
+        {
+            LOG_E("%s device signal strength check failed (%s)", device->name, parsed_data);
+            result = -RT_ERROR;
+            goto __exit;
+        }
+
+// 0: Received data with "+MIPRTCP:" or "+MIPRUDP:" and the data is encoded.
+// 1: Received data only and the data are without encoded. In received character string, Module doesn’t accede to any <CR><LF> symbol.
+// 2: Received data with "+MIPRTCP:" or "+MIPRUDP:" and the data is without encoded. In received character string, Module will accede to <CR><LF> before "+MIPRTCP:" or "+MIPRUDP:".
+// 5: Data read mode.
+        /* */
+        AT_SEND_CMD(client, resp, 2, 5 * 1000, "AT+GTSET=\"IPRFMT\",5");
+        rt_thread_mdelay(100);
+				
+        /* Set to multiple connections */
+        AT_SEND_CMD(client, resp, 0, 300, "AT+MIPCALL?");
+				
+					
+        at_resp_parse_line_args_by_kw(resp, "+MIPCALL:", "+MIPCALL: %d", &qimux);
+				
+        if (qimux == 0)
+        {
+        AT_SEND_CMD(client, resp, 0, 300, "AT+COPS?");
+        at_resp_parse_line_args_by_kw(resp, "+COPS:", "+COPS: %*[^\"]\"%[^\"]", &parsed_data);
+					
+        if (rt_strcmp(parsed_data, "CHINA MOBILE") == 0)
+        {
+            /* "CMCC" */
+            LOG_I("%s device network operator: %s", device->name, parsed_data);
+            AT_SEND_CMD(client, resp, 0, 300, CSTT_CHINA_MOBILE);
+								
+        }
+        else if (rt_strcmp(parsed_data, "CHN-UNICOM") == 0)
+        {
+            /* "UNICOM" */
+            LOG_I("%s device network operator: %s", device->name, parsed_data);
+            AT_SEND_CMD(client, resp, 0, 300, CSTT_CHINA_UNICOM);
+        }
+        else if (rt_strcmp(parsed_data, "CHN-CT") == 0)
+        {
+            AT_SEND_CMD(client, resp, 0, 300, CSTT_CHINA_TELECOM);
+            /* "CT" */
+            LOG_I("%s device network operator: %s", device->name, parsed_data);
+        }
+
+			}
+  /* check the GPRS network is registered */
+        for (i = 0; i < CGREG_RETRY; i++)
+        {
+            AT_SEND_CMD(client, resp, 0, 300, "AT+MIPCALL?");
+					
+            at_resp_parse_line_args_by_kw(resp, "+MIPCALL: ", "+MIPCALL: %s", &parsed_data);
+			
+            if(parsed_data!=NULL)
+            {
+                LOG_D("%s device GPRS is registered(%s).", device->name, parsed_data);
+                break;
+            }
+            rt_thread_mdelay(1000);
+        }
+        if (i == CGREG_RETRY)
+        {
+            LOG_E("%s device GPRS is register failed(%s).", device->name, parsed_data);
+            result = -RT_ERROR;
+            goto __exit;
+        }
+
+        /* initialize successfully  */
+        result = RT_EOK;
+        break;
+
+    __exit:
+        if (result != RT_EOK)
+        {
+            /* power off the L610 device */
+            l610_power_off(device);
+            rt_thread_mdelay(1000);
+
+            LOG_I("%s device initialize retry...", device->name);
+        }
+    }
+
+    if (resp)
+    {
+        at_delete_resp(resp);
+    }
+		
+    if (result == RT_EOK)
+    {
+        /* set network interface device status and address information */
+        l610_netdev_set_info(device->netdev);
+        /* check and create link staus sync thread  */
+        if (rt_thread_find(device->netdev->name) == RT_NULL)
+        {
+            l610_netdev_check_link_status(device->netdev);
+        }
+
+        LOG_I("%s device network initialize success!", device->name);
+
+    }
+    else
+    {
+        LOG_E("%s device network initialize failed(%d)!", device->name, result);
+    }
+}
+
+static int l610_net_init(struct at_device *device)
+{
+#ifdef AT_DEVICE_L610_INIT_ASYN
+    rt_thread_t tid;
+
+    tid = rt_thread_create("l610_net", l610_init_thread_entry, (void *)device,
+                L610_THREAD_STACK_SIZE, L610_THREAD_PRIORITY, 20);
+    if (tid)
+    {
+        rt_thread_startup(tid);
+    }
+    else
+    {
+        LOG_E("create %s device init thread failed.", device->name);
+        return -RT_ERROR;
+    }
+#else
+    L610_init_thread_entry(device);
+#endif /* AT_DEVICE_L610_INIT_ASYN */
+
+    return RT_EOK;
+}
+
+static void urc_func(struct at_client *client, const char *data, rt_size_t size)
+{
+    RT_ASSERT(data);
+
+    LOG_I("URC data : %.*s", size, data);
+}
+
+/* l610 device URC table for the device control */
+static const struct at_urc urc_table[] =
+{
+        {"RDY",         "\r\n",                 urc_func},
+};
+
+static int l610_init(struct at_device *device)
+{
+    struct at_device_l610 *l610 = (struct at_device_l610 *) device->user_data;
+
+    /* initialize AT client */
+    at_client_init(l610->client_name, l610->recv_line_num);
+
+    device->client = at_client_get(l610->client_name);
+    if (device->client == RT_NULL)
+    {
+        LOG_E("get AT client(%s) failed.", l610->client_name);
+        return -RT_ERROR;
+    }
+
+    /* register URC data execution function  */
+    at_obj_set_urc_table(device->client, urc_table, sizeof(urc_table) / sizeof(urc_table[0]));
+
+#ifdef AT_USING_SOCKET
+
+    l610_socket_init(device);
+#endif
+
+    /* add l610 device to the netdev list */
+    device->netdev = l610_netdev_add(l610->device_name);
+    if (device->netdev == RT_NULL)
+    {
+        LOG_E("get netdev(%s) failed.", l610->device_name);
+        return -RT_ERROR;
+    }
+
+    /* initialize l610 pin configuration */
+    if (l610->power_pin != -1 && l610->power_status_pin != -1)
+    {
+        rt_pin_mode(l610->power_pin, PIN_MODE_OUTPUT);
+        rt_pin_mode(l610->power_status_pin, PIN_MODE_INPUT);
+    }
+
+    /* initialize l610 device network */
+    return l610_netdev_set_up(device->netdev);
+}
+
+static int l610_deinit(struct at_device *device)
+{
+    return l610_netdev_set_down(device->netdev);
+}
+
+static int l610_control(struct at_device *device, int cmd, void *arg)
+{
+    int result = -RT_ERROR;
+
+    RT_ASSERT(device);
+
+    switch (cmd)
+    {
+	case AT_DEVICE_CTRL_SLEEP:
+        result = l610_sleep(device);
+        break;
+    case AT_DEVICE_CTRL_WAKEUP:
+        result = l610_wakeup(device);
+        break;
+		
+    case AT_DEVICE_CTRL_POWER_ON:
+    case AT_DEVICE_CTRL_POWER_OFF:
+    case AT_DEVICE_CTRL_RESET:
+    case AT_DEVICE_CTRL_LOW_POWER:
+    case AT_DEVICE_CTRL_NET_CONN:
+    case AT_DEVICE_CTRL_NET_DISCONN:
+    case AT_DEVICE_CTRL_SET_WIFI_INFO:
+    case AT_DEVICE_CTRL_GET_SIGNAL:
+    case AT_DEVICE_CTRL_GET_GPS:
+    case AT_DEVICE_CTRL_GET_VER:
+        LOG_W("not support the control command(%d).", cmd);
+        break;
+    default:
+        LOG_E("input error control command(%d).", cmd);
+        break;
+    }
+
+    return result;
+}
+
+const struct at_device_ops l610_device_ops =
+{
+    l610_init,
+    l610_deinit,
+    l610_control,
+};
+
+static int l610_device_class_register(void)
+{
+    struct at_device_class *class = RT_NULL;
+
+    class = (struct at_device_class *) rt_calloc(1, sizeof(struct at_device_class));
+    if (class == RT_NULL)
+    {
+        LOG_E("no memory for device class create.");
+        return -RT_ENOMEM;
+    }
+
+    /* fill l610 device class object */
+#ifdef AT_USING_SOCKET
+    l610_socket_class_register(class);
+#endif
+    class->device_ops = &l610_device_ops;
+
+    return at_device_class_register(class, AT_DEVICE_CLASS_L610);
+}
+INIT_DEVICE_EXPORT(l610_device_class_register);
+
+#endif /* AT_DEVICE_USING_L610 */

class/l610/at_device_l610.h

@@ -0,0 +1,69 @@
+/*
+ * File      : at_device_l610.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-10-28     zhangyang     first version
+ */
+
+#ifndef __AT_DEVICE_L610_H__
+#define __AT_DEVICE_L610_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdlib.h>
+#include <at_device.h>
+
+/* The maximum number of sockets supported by the l610 device */
+#define AT_DEVICE_L610_SOCKETS_NUM      6
+
+struct at_device_l610
+{
+    char *device_name;
+    char *client_name;
+
+    int power_pin;
+    int power_status_pin;
+    size_t recv_line_num;
+    struct at_device device;
+
+		void *socket_data;
+    void *user_data;
+	
+		rt_bool_t power_status;
+		rt_bool_t sleep_status;
+};
+
+#ifdef AT_USING_SOCKET
+
+/* l610 device socket initialize */
+int l610_socket_init(struct at_device *device);
+
+/* l610 device class socket register */
+int l610_socket_class_register(struct at_device_class *class);
+
+#endif /* AT_USING_SOCKET */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __AT_DEVICE_L610_H__ */

class/l610/at_socket_l610.c

@@ -0,0 +1,666 @@
+/*
+ * File      : at_socket_l610.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-10-28     zhangyang    first version
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+#include <at_device_l610.h>
+
+#define LOG_TAG                        "at.skt.l610"
+#include <at_log.h>
+
+#define AT_USING_SOCKET
+#define AT_DEVICE_USING_L610
+
+#if defined(AT_DEVICE_USING_L610) && defined(AT_USING_SOCKET)
+
+#define L610_MODULE_SEND_MAX_SIZE   2048
+static int l610_socket_fd[AT_DEVICE_L610_SOCKETS_NUM] = {-1};
+
+/* set real event by current socket and current state */
+#define SET_EVENT(socket, event)       (((socket + 1) << 16) | (event))
+
+/* AT socket event type */
+#define L610_EVENT_CONN_OK          (1L << 0)
+#define L610_EVENT_SEND_OK          (1L << 1)
+#define L610_EVENT_RECV_OK          (1L << 2)
+#define L610_EVNET_CLOSE_OK         (1L << 3)
+#define L610_EVENT_CONN_FAIL        (1L << 4)
+#define L610_EVENT_SEND_FAIL        (1L << 5)
+
+
+
+static at_evt_cb_t at_evt_cb_set[] = {
+        [AT_SOCKET_EVT_RECV] = NULL,
+        [AT_SOCKET_EVT_CLOSED] = NULL,
+};
+
+
+static int l610_get_socket_idx(int sock)
+{
+    int i;
+    
+    if (sock < 0)
+    {
+        return(-1);
+    }
+    
+    for (i=0; i<AT_DEVICE_L610_SOCKETS_NUM; i++)
+    {
+        if (l610_socket_fd[i] == sock)
+            return(i);
+    }
+
+    return(-1);
+}
+
+static int l610_socket_event_send(struct at_device *device, uint32_t event)
+{
+    return (int) rt_event_send(device->socket_event, event);
+}
+
+static int l610_socket_event_recv(struct at_device *device, uint32_t event, uint32_t timeout, rt_uint8_t option)
+{
+    int result = RT_EOK;
+    rt_uint32_t recved;
+
+    result = rt_event_recv(device->socket_event, event, option | RT_EVENT_FLAG_CLEAR, timeout, &recved);
+    if (result != RT_EOK)
+    {
+        return -RT_ETIMEOUT;
+    }
+
+    return recved;
+}
+
+/**
+ * close socket by AT commands.
+ *
+ * @param current socket
+ *
+ * @return  0: close socket success
+ *         -1: send AT commands error
+ *         -2: wait socket event timeout
+ *         -5: no memory
+ */
+static int l610_socket_close(struct at_socket *socket)
+{
+    uint32_t event = 0;
+    int result = RT_EOK;
+    int device_socket = (int) socket->user_data;
+    int device_socket_id = (int) socket->user_data;
+    struct at_device *device = (struct at_device *) socket->device;
+    if (l610_socket_fd[device_socket] == -1)
+    {
+        return RT_EOK;
+    }
+    device_socket_id=l610_socket_fd[device_socket];
+    /* clear socket close event */
+    event = SET_EVENT(device_socket_id, L610_EVNET_CLOSE_OK);
+    l610_socket_event_recv(device, event, 0, RT_EVENT_FLAG_OR);
+
+    if (at_obj_exec_cmd(device->client, NULL, "AT+MIPCLOSE=%d", device_socket_id) < 0)
+    {
+        result = -RT_ERROR;
+        goto __exit;
+    }
+
+    if (l610_socket_event_recv(device, event, rt_tick_from_millisecond(300*3), RT_EVENT_FLAG_AND) < 0)
+    {
+        LOG_E("%s device socket(%d) wait close OK timeout.", device->name, device_socket_id);
+        result = -RT_ETIMEOUT;
+        goto __exit;
+    }
+
+__exit:    
+    return result;
+}
+
+
+/**
+ * create TCP/UDP client or server connect by AT commands.
+ *
+ * @param socket current socket
+ * @param ip server or client IP address
+ * @param port server or client port
+ * @param type connect socket type(tcp, udp)
+ * @param is_client connection is client
+ *
+ * @return   0: connect success
+ *          -1: connect failed, send commands error or type error
+ *          -2: wait socket event timeout
+ *          -5: no memory
+ */
+
+
+static int l610_socket_connect(struct at_socket *socket, char *ip, int32_t port,enum at_socket_type type, rt_bool_t is_client)
+{
+    #define CONN_RESP_SIZE  128
+    
+    int type_code = 0;
+    int result = RT_EOK;
+    at_response_t resp = RT_NULL;
+    int device_socket = (int) socket->user_data;
+    struct at_device *device = (struct at_device *) socket->device;
+    int sock = -1;
+
+    RT_ASSERT(ip);
+    RT_ASSERT(port >= 0);
+
+    if ( ! is_client)
+    {
+        return -RT_ERROR;
+    }
+
+    switch(type)
+    {
+        case AT_SOCKET_TCP:
+					type_code = 0;  //0:tcp
+            break;
+        case AT_SOCKET_UDP:
+					type_code = 1;   //:1udp
+            break;
+        default:
+            LOG_E("%s device socket(%d)  connect type error.", device->name, device_socket);
+            return -RT_ERROR;
+    }
+
+    resp = at_create_resp(CONN_RESP_SIZE, 0, rt_tick_from_millisecond(300));
+    if (resp == RT_NULL)
+    {
+        LOG_E("no memory for resp create.");
+        return -RT_ENOMEM;
+    }
+
+    if (l610_socket_fd[device_socket] != -1)
+    {
+        at_obj_exec_cmd(device->client, resp, "AT+MIPCLOSE=%d", l610_socket_fd[device_socket]);
+        l610_socket_fd[device_socket] = -1;
+    }
+		
+		
+    
+    if (at_obj_exec_cmd(device->client, resp, "AT+MIPOPEN?") < 0)
+    {
+        result = -RT_ERROR;
+        goto __exit;
+    }
+
+    if (at_resp_parse_line_args_by_kw(resp, "+MIPOPEN: ", "+MIPOPEN:%d", &sock) <= 0)
+    {
+        result = -RT_ERROR;
+        goto __exit;
+    }
+
+
+    at_resp_set_info(resp, CONN_RESP_SIZE, 0, (45*RT_TICK_PER_SECOND));
+
+    if(at_obj_exec_cmd(device->client, RT_NULL,"AT+MIPOPEN=%d,,\"%s\",%d,%d",sock, ip, port,type_code) < 0)
+    {
+        at_resp_set_info(resp, CONN_RESP_SIZE, 0, rt_tick_from_millisecond(300));
+        at_obj_exec_cmd(device->client, resp, "AT+MIPCLOSE=%d", sock);
+        result = -RT_ERROR;
+        goto __exit;
+    }
+
+    l610_socket_fd[device_socket] = sock;
+    
+__exit:
+    if (resp)
+    {
+        at_delete_resp(resp);
+    }
+
+    return result;
+}
+
+/**
+ * send data to server or client by AT commands.
+ *
+ * @param socket current socket
+ * @param buff send buffer
+ * @param bfsz send buffer size
+ * @param type connect socket type(tcp, udp)
+ *
+ * @return >=0: the size of send success
+ *          -1: send AT commands error or send data error
+ *          -2: waited socket event timeout
+ *          -5: no memory
+ */
+static int l610_socket_send(struct at_socket *socket, const char *buff, size_t bfsz, enum at_socket_type type)
+{
+    uint32_t event = 0;
+    int result = RT_EOK, event_result = 0;
+    size_t cur_pkt_size = 0, sent_size = 0;
+    at_response_t resp = RT_NULL;
+    int device_socket = (int) socket->user_data;
+    struct at_device *device = (struct at_device *) socket->device;
+    rt_mutex_t lock = device->client->lock;
+	int sock = -1;
+	
+	   sock=l610_socket_fd[device_socket];
+		if(sock<=0)
+		{
+			LOG_E("error socket ");
+					return -RT_ERROR;
+		}
+
+    RT_ASSERT(buff);
+
+    resp = at_create_resp(128, 2, 5 * RT_TICK_PER_SECOND);
+    if (resp == RT_NULL)
+    {
+        LOG_E("no memory for resp create.");
+        return -RT_ENOMEM;
+    }
+
+    rt_mutex_take(lock, RT_WAITING_FOREVER);
+
+    /* clear socket connect event */
+    event = SET_EVENT(sock, L610_EVENT_SEND_OK | L610_EVENT_SEND_FAIL);
+    l610_socket_event_recv(device, event, 0, RT_EVENT_FLAG_OR);
+
+    /* set AT client end sign to deal with '>' sign.*/
+    at_obj_set_end_sign(device->client, '>');
+    while (sent_size < bfsz)
+    {
+        if (bfsz - sent_size < L610_MODULE_SEND_MAX_SIZE)
+        {
+            cur_pkt_size = bfsz - sent_size;
+        }
+        else
+        {
+            cur_pkt_size = L610_MODULE_SEND_MAX_SIZE;
+        }
+
+        /* send the "AT+QISEND" commands to AT server than receive the '>' response on the first line. */
+        if (at_obj_exec_cmd(device->client, resp, "AT+MIPSEND=%d,%d", sock, cur_pkt_size) < 0)
+        {
+            result = -RT_ERROR;
+            goto __exit;
+        }
+
+        /* send the real data to server or client */
+        result = (int) at_client_obj_send(device->client, buff + sent_size, cur_pkt_size);
+        if (result == 0)
+        {
+            result = -RT_ERROR;
+            goto __exit;
+        }
+
+        /* waiting result event from AT URC */
+        if (l610_socket_event_recv(device, SET_EVENT(sock, 0), 15 * RT_TICK_PER_SECOND, RT_EVENT_FLAG_OR) < 0)
+        {
+            LOG_E("%s device socket(%d) wait send result timeout.", device->name, sock);
+            result = -RT_ETIMEOUT;
+            goto __exit;
+        }
+        
+        /* waiting OK or failed result */
+        event_result = l610_socket_event_recv(device,
+                L610_EVENT_SEND_OK | L610_EVENT_SEND_FAIL, 5 * RT_TICK_PER_SECOND, RT_EVENT_FLAG_OR);
+        if (event_result < 0)
+        {
+            LOG_E("%s device socket(%d) wait send connect OK|FAIL timeout.", device->name, sock);
+            result = -RT_ETIMEOUT;
+            goto __exit;
+        }
+        /* check result */
+        if (event_result & L610_EVENT_SEND_FAIL)
+        {
+            LOG_E("%s device socket(%d) send failed.", device->name, sock);
+            result = -RT_ERROR;
+            goto __exit;
+        }
+
+        sent_size += cur_pkt_size;
+    }
+
+__exit:
+    /* reset the end sign for data conflict */
+    at_obj_set_end_sign(device->client, 0);
+
+    rt_mutex_release(lock);
+
+    if (resp)
+    {
+        at_delete_resp(resp);
+    }
+
+    return result > 0 ? sent_size : result;
+}
+
+/**
+ * domain resolve by AT commands.
+ *
+ * @param name domain name
+ * @param ip parsed IP address, it's length must be 16
+ *
+ * @return  0: domain resolve success
+ *         -1: send AT commands error or response error
+ *         -2: wait socket event timeout
+ *         -5: no memory
+ */
+static int l610_domain_resolve(const char *name, char ip[16])
+{
+    int result;
+    at_response_t resp = RT_NULL;
+    struct at_device *device = RT_NULL;
+    
+    RT_ASSERT(name);
+    RT_ASSERT(ip);
+
+    device = at_device_get_first_initialized();
+    if (device == RT_NULL)
+    {
+        LOG_E("get first init device failed.");
+        return -RT_ERROR;
+    }
+
+    resp = at_create_resp(128, 0, (15 * RT_TICK_PER_SECOND));
+    if (!resp)
+    {
+        LOG_E("no memory for resp create.");
+        return -RT_ENOMEM;
+    }
+		//		0: IPV4 address
+		//		1: IPV6 address
+		//		2:	IPV4/IPV6 address
+		//		<IP>: resolved IPV4 or IPV6 address (string without double quotes)
+    result = at_obj_exec_cmd(device->client, resp, "AT+MIPDNS=\"%s\",2", name);
+    if (result != RT_EOK)
+    {
+        LOG_E("%s device \"AT+MIPDNS=\"%s\"\" cmd error.", device->name, name);
+        goto __exit;
+    }
+    //GET ip
+    if (at_resp_parse_line_args_by_kw(resp, "+MIPDNS: ", "%*[^,],%[^,]",ip) <= 0)
+    {
+        LOG_E("%s device prase \"AT+MIPDNS=\"%s\",2\" cmd error.", device->name, name);
+        result = -RT_ERROR;
+        goto __exit;
+    }
+    ip[15] = 0;
+    if (rt_strlen(ip) < 8)
+    {
+        result = -RT_ERROR;
+    }
+    else
+    {
+        result = RT_EOK;
+    }
+
+ __exit:
+    if (resp)
+    {
+        at_delete_resp(resp);
+    }
+
+    return result;
+}
+
+
+/**
+ * set AT socket event notice callback
+ *
+ * @param event notice event
+ * @param cb notice callback
+ */
+static void l610_socket_set_event_cb(at_socket_evt_t event, at_evt_cb_t cb)
+{
+    if (event < sizeof(at_evt_cb_set) / sizeof(at_evt_cb_set[1]))
+    {
+        at_evt_cb_set[event] = cb;
+    }
+}
+
+
+static void urc_send_func(struct at_client *client, const char *data, rt_size_t size)
+{
+    int device_socket = 0;
+    struct at_device *device = RT_NULL;
+    char *client_name = client->device->parent.name;
+    int result;
+
+
+    RT_ASSERT(data && size);
+
+    device = at_device_get_by_name(AT_DEVICE_NAMETYPE_CLIENT, client_name);
+    if (device == RT_NULL)
+    {
+        LOG_E("get device(%s) failed.", client_name);
+        return;
+    }
+
+    /* get the current socket by receive data */
+    sscanf(data, "+MIPPUSH: %d,%d", &device_socket,&result);
+
+
+    if (rt_strstr(data, "+MIPPUSH: ")){
+        if(result==0)
+        {
+            l610_socket_event_send(device, SET_EVENT(device_socket, L610_EVENT_SEND_OK));
+        }
+        else 
+        {
+            l610_socket_event_send(device, SET_EVENT(device_socket, L610_EVENT_SEND_FAIL));
+        }
+    }
+    
+}
+
+static void urc_close_func(struct at_client *client, const char *data, rt_size_t size)
+{
+    int device_socket = 0;
+    struct at_device *device = RT_NULL;
+    char *client_name = client->device->parent.name;
+    int result;
+
+    RT_ASSERT(data && size);
+  
+    device = at_device_get_by_name(AT_DEVICE_NAMETYPE_CLIENT, client_name);
+    if (device == RT_NULL)
+    {
+        LOG_E("get device(%s) failed.", client_name);
+        return;
+    }
+    /* get the current socket by receive data */
+    sscanf(data, "+MIPCLOSE: %d,%d", &device_socket,&result);
+
+	if(result==0)
+    {
+        l610_socket_event_send(device, SET_EVENT(device_socket, L610_EVNET_CLOSE_OK));
+    }
+    else 
+    {
+        struct at_socket *socket = RT_NULL;
+
+        /* get AT socket object by device socket descriptor */
+        socket = &(device->sockets[device_socket]);
+
+        /* notice the socket is disconnect by remote */
+        if (at_evt_cb_set[AT_SOCKET_EVT_CLOSED])
+        {
+            at_evt_cb_set[AT_SOCKET_EVT_CLOSED](socket, AT_SOCKET_EVT_CLOSED, RT_NULL, 0);
+        }
+    }
+}
+
+
+//Receive data from buffer
+static void urc_recv_cmd(struct at_client *client, const char *data, rt_size_t size)
+{
+    int sock = -1;
+    rt_size_t bfsz;
+    struct at_device *device = RT_NULL;
+    char *client_name = client->device->parent.name;
+
+
+    RT_ASSERT(data && size);
+
+    device = at_device_get_by_name(AT_DEVICE_NAMETYPE_CLIENT, client_name);
+    if (device == RT_NULL)
+    {
+        LOG_E("get device(%s) failed.", client_name);
+
+        return;
+    }
+
+    sscanf(data,"+MIPREAD: %d,%d", &sock, (int *) &bfsz);
+
+    if(bfsz>0)
+    {
+        if (at_obj_exec_cmd(client, NULL, "AT+MIPREAD=%d,%d", sock,bfsz) < 0)
+            {
+                LOG_E("send (%s) failed.", client_name);
+                return; 
+            }
+    }
+}
+
+
+
+static void urc_recv_func(struct at_client *client, const char *data, rt_size_t size)
+{
+    int device_socket = 0;
+    rt_int32_t timeout;
+    rt_size_t bfsz = 0, temp_size = 0;
+    char *recv_buf = RT_NULL, temp[8] = {0};
+    struct at_socket *socket = RT_NULL;
+    struct at_device *device = RT_NULL;
+    char *client_name = client->device->parent.name;
+    int sock = -1;
+    rt_size_t data_len;
+    RT_ASSERT(data && size);
+
+   
+    /* get the current socket and receive buffer size by receive data */
+    sscanf(data,"+MIPDATA: %d,%d", &sock, (int *) &bfsz);
+        
+    device_socket = l610_get_socket_idx(sock);
+
+    if (device_socket < 0)
+    {
+        return;
+    }
+
+    /* set receive timeout by receive buffer length, not less than 10 ms */
+    timeout = bfsz > 10 ? bfsz : 10;
+
+    if (device_socket < 0 || bfsz == 0)
+    {
+        return;
+    }
+
+    device = at_device_get_by_name(AT_DEVICE_NAMETYPE_CLIENT, client_name);
+    if (device == RT_NULL)
+    {
+        LOG_E("get device(%s) failed.", client_name);
+        return;
+    }
+
+    recv_buf = (char *) rt_calloc(1, bfsz);
+    if (recv_buf == RT_NULL)
+    {
+        LOG_E("no memory for receive buffer(%d).", bfsz);
+        /* read and clean the coming data */
+        while (temp_size < bfsz)
+        {
+            if (bfsz - temp_size > sizeof(temp))
+            {
+                at_client_obj_recv(client, temp, sizeof(temp), timeout);
+            }
+            else
+            {
+                at_client_obj_recv(client, temp, bfsz - temp_size, timeout);
+            }
+            temp_size += sizeof(temp);
+        }
+        return;
+    }
+ 
+    /* sync receive data */
+    data_len=at_client_obj_recv(client, recv_buf, bfsz, timeout);
+    if (data_len != bfsz)
+    {
+        LOG_E("%s device receive size(%d) data failed.", device->name, bfsz);
+        rt_free(recv_buf);
+        return;
+    }
+
+    /* get AT socket object by device socket descriptor */
+    socket = &(device->sockets[device_socket]);
+    
+    /* notice the receive buffer and buffer size */
+    if (at_evt_cb_set[AT_SOCKET_EVT_RECV])
+    {
+        at_evt_cb_set[AT_SOCKET_EVT_RECV](socket, AT_SOCKET_EVT_RECV, recv_buf, bfsz);
+    }
+}
+
+
+/*  l610 device URC table for the socket data */
+static const struct at_urc urc_table[] =
+{
+
+    {"+MIPPUSH: ",   "\r\n",             urc_send_func},
+    {"+MIPCLOSE: ",  "\r\n",             urc_close_func},
+    {"+MIPREAD: ",    "\r\n",            urc_recv_cmd},
+    {"+MIPDATA: ",    "\r\n",            urc_recv_func},
+ 
+};
+
+static const struct at_socket_ops l610_socket_ops =
+{
+    l610_socket_connect,
+    l610_socket_close,
+    l610_socket_send,
+    l610_domain_resolve,
+    l610_socket_set_event_cb,
+#if defined(AT_SW_VERSION_NUM) && AT_SW_VERSION_NUM > 0x10300
+    RT_NULL,
+#endif
+};
+
+int l610_socket_init(struct at_device *device)
+{
+    RT_ASSERT(device);
+
+    /* register URC data execution function  */
+    at_obj_set_urc_table(device->client, urc_table, sizeof(urc_table) / sizeof(urc_table[0]));
+
+    return RT_EOK;
+}
+
+int l610_socket_class_register(struct at_device_class *class)
+{
+    RT_ASSERT(class);
+
+    class->socket_num = AT_DEVICE_L610_SOCKETS_NUM;
+    class->socket_ops = &l610_socket_ops;
+
+    return RT_EOK;
+}
+
+#endif /* AT_DEVICE_USING_L610 && AT_USING_SOCKET */

samples/at_sample_l610.c

@@ -0,0 +1,52 @@
+/*
+ * File      : at_sample_l610.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-10-28     zhangyang     first version
+ */
+
+#include <at_device_l610.h>
+
+#define LOG_TAG                        "at.sample.l610"
+#include <at_log.h>
+
+#define L610_SAMPLE_DEIVCE_NAME     "l610"
+
+static struct at_device_l610 sim0 =
+{
+    L610_SAMPLE_DEIVCE_NAME,
+    L610_SAMPLE_CLIENT_NAME,
+
+    L610_SAMPLE_POWER_PIN,
+    L610_SAMPLE_STATUS_PIN,
+    L610_SAMPLE_RECV_BUFF_LEN,
+};
+
+static int l610_device_register(void)
+{
+    struct at_device_l610 *l610 = &sim0;
+
+    return at_device_register(&(l610->device),
+                              l610->device_name,
+                              l610->client_name,
+                              AT_DEVICE_CLASS_L610,
+                              (void *) l610);
+}
+INIT_APP_EXPORT(l610_device_register);