From 8eeb8680e10042738b229fb56a9e32d485321e6a Mon Sep 17 00:00:00 2001 From: luhuadong Date: Sun, 15 Mar 2020 23:47:20 +0800 Subject: [PATCH] bc28 class skeleton --- class/bc28/at_device_bc28.c | 786 ++++++++++++++++++++++++++++++++++-- class/bc28/at_device_bc28.h | 4 +- class/bc28/at_socket_bc28.c | 769 ++++++++++++++++++++++++++++++++++- 3 files changed, 1516 insertions(+), 43 deletions(-) diff --git a/class/bc28/at_device_bc28.c b/class/bc28/at_device_bc28.c index e3b8d9a..c391376 100644 --- a/class/bc28/at_device_bc28.c +++ b/class/bc28/at_device_bc28.c @@ -36,30 +36,60 @@ #define BC28_THREAD_STACK_SIZE 2048 #define BC28_THREAD_PRIORITY (RT_THREAD_PRIORITY_MAX/2) -static void bc28_power_on(struct at_device *device) +static int bc28_power_on(struct at_device *device) { - struct at_device_bc28 *bc28 = RT_NULL; - - bc28 = (struct at_device_bc28 *)device->user_data; - bc28->power_status = RT_TRUE; + return(RT_EOK); +} - /* not need to set pin configuration for bc28 device power on */ - if (bc28->power_pin == -1) - { - return(RT_EOK); - } - +static int bc28_power_off(struct at_device *device) +{ + return(RT_EOK); +} + +static int bc28_sleep(struct at_device *device) +{ + return(RT_EOK); +} + +static int bc28_wakeup(struct at_device *device) +{ + return(RT_EOK); +} + +static int bc28_reset(struct at_device *device) +{ + struct at_device_bc28 *bc28 = (struct at_device_bc28 *)device->user_data; + + rt_pin_mode(bc28->power_pin, PIN_MODE_OUTPUT); rt_pin_write(bc28->power_pin, PIN_HIGH); - rt_thread_mdelay(500); + rt_thread_mdelay(300); rt_pin_write(bc28->power_pin, PIN_LOW); return(RT_EOK); } -static void bc28_power_off(struct at_device *device) +static int bc28_check_link_status(struct at_device *device) { at_response_t resp = RT_NULL; struct at_device_bc28 *bc28 = RT_NULL; + int result = -RT_ERROR; + + bc28 = (struct at_device_bc28 *)device->user_data; + if ( ! bc28->power_status) // power off + { + LOG_D("the power is off."); + return(-RT_ERROR); + } + if (bc28->sleep_status) // is sleep status + { + if (bc28->power_pin != -1) + { + rt_pin_write(bc28->power_pin, PIN_HIGH); + rt_thread_mdelay(100); + rt_pin_write(bc28->power_pin, PIN_LOW); + rt_thread_mdelay(200); + } + } resp = at_create_resp(64, 0, rt_tick_from_millisecond(300)); if (resp == RT_NULL) @@ -67,61 +97,735 @@ static void bc28_power_off(struct at_device *device) LOG_D("no memory for resp create."); return(-RT_ERROR); } - - if (at_obj_exec_cmd(device->client, resp, "AT+QPOWD=0") != RT_EOK) + + result = -RT_ERROR; + if (at_obj_exec_cmd(device->client, resp, "AT+CGATT?") == RT_EOK) { - LOG_D("power off fail."); - at_delete_resp(resp); - return(-RT_ERROR); + int link_stat = 0; + if (at_resp_parse_line_args_by_kw(resp, "+CGATT:", "+CGATT:%d", &link_stat) > 0) + { + if (link_stat == 1) + { + result = RT_EOK; + } + } } - +#if 0 + if (bc28->sleep_status) // is sleep status + { + if (at_obj_exec_cmd(device->client, resp, "AT+QRELLOCK") != RT_EOK) + { + LOG_D("startup entry into sleep fail."); + } + } +#endif at_delete_resp(resp); - bc28 = (struct at_device_bc28 *)device->user_data; - bc28->power_status = RT_FALSE; - - return(RT_EOK); + return(result); } -at_device_bc28 functions +/* ============================= bc28 network interface operations ============================= */ +/* set bc28 network interface device status and address information */ +static int bc28_netdev_set_info(struct netdev *netdev) +{ +#define BC28_INFO_RESP_SIZE 128 +#define BC28_INFO_RESP_TIMOUT 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; -static int bc28_power_on(); -static int bc28_power_off(); -static int bc28_sleep(); -static int bc28_wakeup(); + RT_ASSERT(netdev); -static int bc28_check_link_status(); -static int bc28_netdev_set_info(); + 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; + } -static void bc28_check_link_status_entry(); -static int bc28_netdev_check_link_status(); + /* 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); -static int bc28_netdev_set_up(); -static int bc28_netdev_set_down(); -static int bc28_netdev_set_dns_server(); -static int bc28_netdev_ping(); + resp = at_create_resp(BC28_INFO_RESP_SIZE, 0, BC28_INFO_RESP_TIMOUT); + if (resp == RT_NULL) + { + LOG_E("no memory for resp create."); + result = -RT_ENOMEM; + goto __exit; + } + + /* set network interface device hardware address(IMEI) */ + { + #define BC28_NETDEV_HWADDR_LEN 8 + #define BC28_IMEI_LEN 15 + + char imei[BC28_IMEI_LEN] = {0}; + int i = 0, j = 0; + + /* send "AT+CGSN=1" commond to get device IMEI */ + if (at_obj_exec_cmd(device->client, resp, "AT+CGSN=1") != RT_EOK) + { + result = -RT_ERROR; + goto __exit; + } + + if (at_resp_parse_line_args(resp, 2, "+CGSN:%s", imei) <= 0) + { + LOG_E("%s device prase \"AT+CGSN=1\" cmd error.", device->name); + result = -RT_ERROR; + goto __exit; + } + + LOG_D("%s device IMEI number: %s", device->name, imei); + + netdev->hwaddr_len = BC28_NETDEV_HWADDR_LEN; + /* get hardware address by IMEI */ + for (i = 0, j = 0; i < BC28_NETDEV_HWADDR_LEN && j < BC28_IMEI_LEN; i++, j+=2) + { + if (j != BC28_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" commond to get IP address */ + if (at_obj_exec_cmd(device->client, resp, "AT+CGPADDR") != RT_EOK) + { + result = -RT_ERROR; + goto __exit; + } + + /* parse response data "+CGPADDR: 0," */ + if (at_resp_parse_line_args_by_kw(resp, "+CGPADDR:", "+CGPADDR:%*d,%s", ipaddr) <= 0) + { + LOG_E("%s device \"AT+CGPADDR\" cmd error.", device->name); + result = -RT_ERROR; + goto __exit; + } + + LOG_D("%s device IP address: %s", device->name, ipaddr); + + /* set network interface address information */ + inet_aton(ipaddr, &addr); + netdev_low_level_set_ipaddr(netdev, &addr); + } + + /* set network interface device dns server */ + { + #define DNS_ADDR_SIZE_MAX 16 + char dns_server1[DNS_ADDR_SIZE_MAX] = {0}, dns_server2[DNS_ADDR_SIZE_MAX] = {0}; + + /* send "AT+QIDNSCFG?" commond to get DNS servers address */ + if (at_obj_exec_cmd(device->client, resp, "AT+QIDNSCFG?") != RT_EOK) + { + result = -RT_ERROR; + goto __exit; + } + + /* parse response data "PrimaryDns:" + * "SecondaryDns:" + */ + if (at_resp_parse_line_args_by_kw(resp, "PrimaryDns:", "PrimaryDns:\"%[^\"]\"", dns_server1) <= 0) + { + LOG_E("%s device prase \"AT+QIDNSCFG?\" cmd error.", device->name); + result = -RT_ERROR; + goto __exit; + } + if (at_resp_parse_line_args_by_kw(resp, "SecondaryDns:", "SecondaryDns:\"%[^\"]\"", dns_server2) <= 0) + { + LOG_E("%s device prase \"AT+QIDNSCFG?\" cmd error.", device->name); + result = -RT_ERROR; + goto __exit; + } + + LOG_D("%s device primary DNS server address: %s", device->name, dns_server1); + LOG_D("%s device secondary DNS server address: %s", device->name, dns_server2); + + inet_aton(dns_server1, &addr); + netdev_low_level_set_dns_server(netdev, 0, &addr); + + inet_aton(dns_server2, &addr); + netdev_low_level_set_dns_server(netdev, 1, &addr); + } + +__exit: + if (resp) + { + at_delete_resp(resp); + } + + return result; +} + +static void bc28_check_link_status_entry(void *parameter) +{ +#define BC28_LINK_DELAY_TIME (60 * 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) + { + is_link_up = (bc28_check_link_status(device) == RT_EOK); + + netdev_low_level_set_link_status(netdev, is_link_up); + + rt_thread_delay(BC28_LINK_DELAY_TIME); + } +} + +static int bc28_netdev_check_link_status(struct netdev *netdev) +{ +#define BC28_LINK_THREAD_STACK_SIZE (1024 + 512) +#define BC28_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); + + /* create bc28 link status polling thread */ + tid = rt_thread_create(tname, bc28_check_link_status_entry, (void *)netdev, + BC28_LINK_THREAD_STACK_SIZE, BC28_LINK_THREAD_PRIORITY, 20); + if (tid != RT_NULL) + { + rt_thread_startup(tid); + } + + return RT_EOK; +} + +static int bc28_net_init(struct at_device *device); + +static int bc28_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) + { + bc28_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 bc28_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) + { + bc28_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 bc28_netdev_set_dns_server(struct netdev *netdev, uint8_t dns_num, ip_addr_t *dns_server) +{ +#define BC28_DNS_RESP_LEN 64 +#define BC28_DNS_RESP_TIMEOUT rt_tick_from_millisecond(300) + + int result = RT_EOK; + at_response_t resp = RT_NULL; + struct at_device *device = RT_NULL; + + RT_ASSERT(netdev); + RT_ASSERT(dns_server); + + 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; + } + + resp = at_create_resp(BC28_DNS_RESP_LEN, 0, BC28_DNS_RESP_TIMEOUT); + if (resp == RT_NULL) + { + LOG_D("no memory for resp create."); + result = -RT_ENOMEM; + goto __exit; + } + + /* send "AT+QIDNSCFG=[,]" commond to set dns servers */ + if (at_obj_exec_cmd(device->client, resp, "AT+QIDNSCFG=%d,%s", + dns_num, inet_ntoa(*dns_server)) != RT_EOK) + { + result = -RT_ERROR; + goto __exit; + } + + netdev_low_level_set_dns_server(netdev, dns_num, dns_server); + +__exit: + if (resp) + { + at_delete_resp(resp); + } + + return result; +} + +#ifdef NETDEV_USING_PING +static int bc28_netdev_ping(struct netdev *netdev, const char *host, + size_t data_len, uint32_t timeout, struct netdev_ping_resp *ping_resp) +{ +#define BC28_PING_RESP_SIZE 128 +#define BC28_PING_IP_SIZE 16 +#define BC28_PING_TIMEOUT (5 * RT_TICK_PER_SECOND) + + rt_err_t result = RT_EOK; + int response = -1, recv_data_len, ping_time, ttl; + char ip_addr[BC28_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_E("get device(%s) failed.", netdev->name); + return -RT_ERROR; + } + + resp = at_create_resp(BC28_PING_RESP_SIZE, 4, BC28_PING_TIMEOUT); + if (resp == RT_NULL) + { + LOG_E("no memory for resp create"); + return -RT_ENOMEM; + } + + /* send "AT+NPING=[,[,]]" commond to send ping request */ + if (at_obj_exec_cmd(device->client, resp, "AT+NPING=\"%s\",12,%d", host, timeout / RT_TICK_PER_SECOND) < 0) + { + result = -RT_ERROR; + goto __exit; + } +#if 0 + at_resp_parse_line_args_by_kw(resp, "+NPING:", "+NPING:%d", &response); + /* Received the ping response from the server */ + if (response == 0) + { + if (at_resp_parse_line_args_by_kw(resp, "+NPING:", "+NPING:\"%[^\"]\",%d,%d,%d", + ip_addr, &ttl, &ping_time) <= 0) + { + result = -RT_ERROR; + goto __exit; + } + } + + /* prase response number */ + switch (response) + { + case 0: + inet_aton(ip_addr, &(ping_resp->ip_addr)); + ping_resp->data_len = recv_data_len; + ping_resp->ticks = ping_time; + ping_resp->ttl = ttl; + result = RT_EOK; + break; + case 569: + result = -RT_ETIMEOUT; + break; + default: + result = -RT_ERROR; + break; + } +#endif + +__exit: + if (resp) + { + at_delete_resp(resp); + } + + return result; +} +#endif /* NETDEV_USING_PING */ const struct netdev_ops bc28_netdev_ops = { bc28_netdev_set_up, bc28_netdev_set_down, + RT_NULL, bc28_netdev_set_dns_server, RT_NULL, + #ifdef NETDEV_USING_PING bc28_netdev_ping, #endif RT_NULL, }; +static struct netdev *bc28_netdev_add(const char *netdev_name) +{ +#define ETHERNET_MTU 1500 +#define HWADDR_LEN 8 + struct netdev *netdev = RT_NULL; -static struct netdev *bc28_netdev_add(); + netdev = (struct netdev *)rt_calloc(1, sizeof(struct netdev)); + if (netdev == RT_NULL) + { + LOG_E("no memory for netdev create."); + return RT_NULL; + } -static void bc28_init_thread_entry(); + netdev->mtu = ETHERNET_MTU; + netdev->ops = &bc28_netdev_ops; + netdev->hwaddr_len = HWADDR_LEN; -static int bc28_net_init(); +#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; +} + +/* ============================= bc26 device operations ============================= */ + +/* initialize for bc28 */ +static void bc28_init_thread_entry(void *parameter) +{ +#define INIT_RETRY 5 +#define CPIN_RETRY 5 +#define CSQ_RETRY 20 +#define CGREG_RETRY 50 +#define IPADDR_RETRY 10 + + int i; + int retry_num = INIT_RETRY; + 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; + } + + LOG_D("start init %s device.", device->name); + + while (retry_num--) + { + /* reset the bc28 device */ + bc28_reset(device); + rt_thread_mdelay(1000); + + /* wait bc28 startup finish, send AT every 500ms, if receive OK, SYNC success*/ + if (at_client_obj_wait_connect(client, BC28_WAIT_CONNECT_TIME)) + { + result = -RT_ETIMEOUT; + goto __exit; + } + + /* disable echo */ + if (at_obj_exec_cmd(device->client, resp, "ATE0") != RT_EOK) + { + result = -RT_ERROR; + goto __exit; + } + + /* disable auto register */ + if (at_obj_exec_cmd(device->client, resp, "AT+QREGSWT=2") != RT_EOK) + { + result = -RT_ERROR; + goto __exit; + } + + /* disable auto connect */ + if (at_obj_exec_cmd(device->client, resp, "AT+NCONFIG=AUTOCONNECT,FALSE") != RT_EOK) + { + result = -RT_ERROR; + goto __exit; + } + + /* check IMEI */ + if (at_obj_exec_cmd(device->client, resp, "AT+CGSN=1") != RT_EOK) + { + result = -RT_ERROR; + goto __exit; + } + + /* search band 8 */ + if (at_obj_exec_cmd(device->client, resp, "AT+NBAND=8") != RT_EOK) + { + result = -RT_ERROR; + goto __exit; + } + + /* set max function */ + if (at_obj_exec_cmd(device->client, resp, "AT+CFUN=1") != RT_EOK) + { + result = -RT_ERROR; + goto __exit; + } + + /* auto report recv from tcp */ + if (at_obj_exec_cmd(device->client, resp, "AT+NSONMI=2") != RT_EOK) + { + result = -RT_ERROR; + goto __exit; + } + + /* disable eDRX mode */ + if (at_obj_exec_cmd(device->client, resp, "AT+CEDRXS=0,5") != RT_EOK) + { + result = -RT_ERROR; + goto __exit; + } + + /* disable PSM mode */ + if (at_obj_exec_cmd(device->client, resp, "AT+CPSMS=0") != RT_EOK) + { + result = -RT_ERROR; + goto __exit; + } + + /* check IMSI */ + if (at_obj_exec_cmd(device->client, resp, "AT+CIMI") != RT_EOK) + { + result = -RT_ERROR; + goto __exit; + } + + /* attach */ + if (at_obj_exec_cmd(device->client, resp, "AT+CGATT=1") != RT_EOK) + { + result = -RT_ERROR; + goto __exit; + } + + /* Get the baudrate */ + if (at_obj_exec_cmd(device->client, resp, "AT+NATSPEED?") != RT_EOK) + { + result = -RT_ERROR; + goto __exit; + } + at_resp_parse_line_args_by_kw(resp, "+NATSPEED:", "+NATSPEED:%d", &i); + LOG_D("%s device baudrate %d", device->name, i); + + /* get module version */ + if (at_obj_exec_cmd(device->client, resp, "ATI") != RT_EOK) + { + result = -RT_ERROR; + goto __exit; + } + 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++) + { + rt_thread_mdelay(1000); + if (at_obj_exec_cmd(device->client, resp, "AT+CPIN?") == RT_EOK) + { + if (at_resp_get_line_by_kw(resp, "READY") != RT_NULL) + break; + } + } + if (i == CPIN_RETRY) + { + LOG_E("%s device SIM card detection failed.", device->name); + result = -RT_ERROR; + goto __exit; + } + + /* check signal strength */ + for (i = 0; i < CSQ_RETRY; i++) + { + rt_thread_mdelay(1000); + if (at_obj_exec_cmd(device->client, resp, "AT+CSQ") == RT_EOK) + { + int signal_strength = 0, err_rate = 0; + + if (at_resp_parse_line_args_by_kw(resp, "+CSQ:", "+CSQ:%d,%d", &signal_strength, &err_rate) > 0) + { + if ((signal_strength != 99) && (signal_strength != 0)) + { + LOG_D("%s device signal strength: %d, channel bit error rate: %d", + device->name, signal_strength, err_rate); + break; + } + } + } + } + if (i == CSQ_RETRY) + { + LOG_E("%s device signal strength check failed", device->name); + result = -RT_ERROR; + goto __exit; + } + + /* check the GPRS network is registered */ + for (i = 0; i < CGREG_RETRY; i++) + { + rt_thread_mdelay(1000); + if (at_obj_exec_cmd(device->client, resp, "AT+CGATT?") == RT_EOK) + { + int link_stat = 0; + + if (at_resp_parse_line_args_by_kw(resp, "+CGATT:", "+CGATT:%d", &link_stat) > 0) + { + if (link_stat == 1) + { + LOG_D("%s device GPRS is registered", device->name); + break; + } + } + } + } + if (i == CGREG_RETRY) + { + LOG_E("%s device GPRS is register failed", device->name); + result = -RT_ERROR; + goto __exit; + } + + /* check the GPRS network IP address */ + for (i = 0; i < IPADDR_RETRY; i++) + { + rt_thread_mdelay(1000); + if (at_obj_exec_cmd(device->client, resp, "AT+CGPADDR") == RT_EOK) + { + #define IP_ADDR_SIZE_MAX 16 + char ipaddr[IP_ADDR_SIZE_MAX] = {0}; + + /* parse response data "+CGPADDR: 0," */ + if (at_resp_parse_line_args_by_kw(resp, "+CGPADDR:", "+CGPADDR:%*d,%s", ipaddr) > 0) + { + LOG_D("%s device IP address: %s", device->name, ipaddr); + break; + } + } + } + if (i == IPADDR_RETRY) + { + LOG_E("%s device GPRS is get IP address failed", device->name); + result = -RT_ERROR; + goto __exit; + } + + /* initialize successfully */ + result = RT_EOK; + break; + + __exit: + if (result != RT_EOK) + { + /* power off the bc28 device */ + bc28_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 */ + bc28_netdev_set_info(device->netdev); + /* check and create link staus sync thread */ + if (rt_thread_find(device->netdev->name) == RT_NULL) + { + bc28_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); + } +} + +/* bc28 device network initialize */ +static int bc28_net_init(struct at_device *device) +{ +#ifdef AT_DEVICE_BC28_INIT_ASYN + rt_thread_t tid; + + tid = rt_thread_create("bc28_net", bc28_init_thread_entry, (void *)device, + BC28_THREAD_STACK_SIZE, BC28_THREAD_PRIORITY, 20); + if (tid) + { + rt_thread_startup(tid); + } + else + { + LOG_E("create %s device init thread failed.", device->name); + return -RT_ERROR; + } +#else + bc28_init_thread_entry(device); +#endif /* AT_DEVICE_BC28_INIT_ASYN */ + + return RT_EOK; +} static int bc28_init(struct at_device *device) { @@ -167,6 +871,8 @@ static int bc28_control(struct at_device *device, int cmd, void *arg) case AT_DEVICE_CTRL_POWER_ON: case AT_DEVICE_CTRL_POWER_OFF: case AT_DEVICE_CTRL_RESET: + result = bc28_reset(device); + break; case AT_DEVICE_CTRL_LOW_POWER: case AT_DEVICE_CTRL_NET_CONN: case AT_DEVICE_CTRL_NET_DISCONN: @@ -202,7 +908,7 @@ static int bc28_device_class_register(void) return -RT_ENOMEM; } - /* fill bc26 device class object */ + /* fill bc28 device class object */ #ifdef AT_USING_SOCKET bc28_socket_class_register(class); #endif diff --git a/class/bc28/at_device_bc28.h b/class/bc28/at_device_bc28.h index 71f9e2a..57743c3 100644 --- a/class/bc28/at_device_bc28.h +++ b/class/bc28/at_device_bc28.h @@ -41,8 +41,8 @@ struct at_device_bc28 char *device_name; char *client_name; - int reset_pin; - int adc_pin; + int power_pin; /* BC28 has not power_en, it should be reset pin */ + int power_status_pin; /* ADC */ size_t recv_bufsz; struct at_device device; diff --git a/class/bc28/at_socket_bc28.c b/class/bc28/at_socket_bc28.c index 91d6276..4fa1b53 100644 --- a/class/bc28/at_socket_bc28.c +++ b/class/bc28/at_socket_bc28.c @@ -20,4 +20,771 @@ * Change Logs: * Date Author Notes * 2020-02-13 luhuadong first version - */ \ No newline at end of file + */ + +#include +#include + +#include + +#define LOG_TAG "at.skt.bc28" +#include + +#if defined(AT_DEVICE_USING_BC28) && defined(AT_USING_SOCKET) + +#define BC28_MODULE_SEND_MAX_SIZE 1024 + +/* set real event by current socket and current state */ +#define SET_EVENT(socket, event) (((socket + 1) << 16) | (event)) + +/* AT socket event type */ +#define BC28_EVENT_CONN_OK (1L << 0) +#define BC28_EVENT_SEND_OK (1L << 1) +#define BC28_EVENT_RECV_OK (1L << 2) +#define BC28_EVNET_CLOSE_OK (1L << 3) +#define BC28_EVENT_CONN_FAIL (1L << 4) +#define BC28_EVENT_SEND_FAIL (1L << 5) +#define BC28_EVENT_DOMAIN_OK (1L << 6) + +static at_evt_cb_t at_evt_cb_set[] = { + [AT_SOCKET_EVT_RECV] = NULL, + [AT_SOCKET_EVT_CLOSED] = NULL, +}; + +static void at_tcp_ip_errcode_parse(int result)//TCP/IP_QIGETERROR +{ + switch(result) + { + case 0 : LOG_D("%d : Operation successful", result); break; + case 550 : LOG_E("%d : Unknown error", result); break; + case 551 : LOG_E("%d : Operation blocked", result); break; + case 552 : LOG_E("%d : Invalid parameters", result); break; + case 553 : LOG_E("%d : Memory not enough", result); break; + case 554 : LOG_E("%d : Create socket failed", result); break; + case 555 : LOG_E("%d : Operation not supported", result); break; + case 556 : LOG_E("%d : Socket bind failed", result); break; + case 557 : LOG_E("%d : Socket listen failed", result); break; + case 558 : LOG_E("%d : Socket write failed", result); break; + case 559 : LOG_E("%d : Socket read failed", result); break; + case 560 : LOG_E("%d : Socket accept failed", result); break; + case 561 : LOG_E("%d : Open PDP context failed", result); break; + case 562 : LOG_E("%d : Close PDP context failed", result); break; + case 563 : LOG_W("%d : Socket identity has been used", result); break; + case 564 : LOG_E("%d : DNS busy", result); break; + case 565 : LOG_E("%d : DNS parse failed", result); break; + case 566 : LOG_E("%d : Socket connect failed", result); break; + // case 567 : LOG_W("%d : Socket has been closed", result); break; + case 567 : break; + case 568 : LOG_E("%d : Operation busy", result); break; + case 569 : LOG_E("%d : Operation timeout", result); break; + case 570 : LOG_E("%d : PDP context broken down", result); break; + case 571 : LOG_E("%d : Cancel send", result); break; + case 572 : LOG_E("%d : Operation not allowed", result); break; + case 573 : LOG_E("%d : APN not configured", result); break; + case 574 : LOG_E("%d : Port busy", result); break; + default : LOG_E("%d : Unknown err code", result); break; + } +} + + +static int bc28_socket_event_send(struct at_device *device, uint32_t event) +{ + return (int) rt_event_send(device->socket_event, event); +} + +static int bc28_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 bc28_socket_close(struct at_socket *socket) +{ + 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; + + resp = at_create_resp(64, 0, rt_tick_from_millisecond(300)); + if (resp == RT_NULL) + { + LOG_E("no memory for resp create."); + return -RT_ENOMEM; + } + + result = at_obj_exec_cmd(device->client, resp, "AT+QICLOSE=%d", device_socket); + + at_delete_resp(resp); + + 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 bc28_socket_connect(struct at_socket *socket, char *ip, int32_t port, + enum at_socket_type type, rt_bool_t is_client) +{ + #define CONN_RETRY 2 + + int i = 0; + const char *type_str = RT_NULL; + uint32_t event = 0; + at_response_t resp = RT_NULL; + int result = 0, event_result = 0; + int device_socket = (int) socket->user_data; + struct at_device *device = (struct at_device *) socket->device; + + RT_ASSERT(ip); + RT_ASSERT(port >= 0); + + if ( ! is_client) + { + return -RT_ERROR; + } + + switch(type) + { + case AT_SOCKET_TCP: + type_str = "TCP"; + break; + case AT_SOCKET_UDP: + type_str = "UDP"; + break; + default: + LOG_E("%s device socket(%d) connect type error.", device->name, device_socket); + return -RT_ERROR; + } + + resp = at_create_resp(128, 0, rt_tick_from_millisecond(300)); + if (resp == RT_NULL) + { + LOG_E("no memory for resp create."); + return -RT_ENOMEM; + } + + for(i=0; iclient, resp, "AT+QIOPEN=1,%d,\"%s\",\"%s\",%d,0,1", + device_socket, type_str, ip, port) < 0) + { + result = -RT_ERROR; + break; + } + + /* waiting result event from AT URC, the device default connection timeout is 60 seconds*/ + if (bc28_socket_event_recv(device, SET_EVENT(device_socket, 0), + 60 * RT_TICK_PER_SECOND, RT_EVENT_FLAG_OR) < 0) + { + LOG_E("%s device socket(%d) wait connect result timeout.", device->name, device_socket); + result = -RT_ETIMEOUT; + break; + } + /* waiting OK or failed result */ + event_result = bc28_socket_event_recv(device, BC28_EVENT_CONN_OK | BC28_EVENT_CONN_FAIL, + 1 * RT_TICK_PER_SECOND, RT_EVENT_FLAG_OR); + if (event_result < 0) + { + LOG_E("%s device socket(%d) wait connect OK|FAIL timeout.", device->name, device_socket); + result = -RT_ETIMEOUT; + break; + } + /* check result */ + if (event_result & BC28_EVENT_CONN_OK) + { + result = RT_EOK; + break; + } + + LOG_D("%s device socket(%d) connect failed, the socket was not be closed and now will connect retry.", + device->name, device_socket); + if (bc28_socket_close(socket) < 0) + { + result = -RT_ERROR; + break; + } + } + + if (i == CONN_RETRY) + { + LOG_E("%s device socket(%d) connect failed.", device->name, device_socket); + result = -RT_ERROR; + } + + if (resp) + { + at_delete_resp(resp); + } + + return result; +} + +static int at_get_send_size(struct at_socket *socket, size_t *size, size_t *acked, size_t *nacked) +{ + int result = 0; + at_response_t resp = RT_NULL; + int device_socket = (int) socket->user_data; + struct at_device *device = (struct at_device *) socket->device; + + resp = at_create_resp(128, 0, rt_tick_from_millisecond(300)); + if (resp == RT_NULL) + { + LOG_E("no memory for resp create.", device->name); + return -RT_ENOMEM; + } + + if (at_obj_exec_cmd(device->client, resp, "AT+QISEND=%d,0", device_socket) < 0) + { + result = -RT_ERROR; + goto __exit; + } + + if (at_resp_parse_line_args_by_kw(resp, "+QISEND:", "+QISEND: %d,%d,%d", size, acked, nacked) <= 0) + { + result = -RT_ERROR; + goto __exit; + } + +__exit: + if (resp) + { + at_delete_resp(resp); + } + + return result; +} + +static int at_wait_send_finish(struct at_socket *socket, size_t settings_size) +{ + /* get the timeout by the input data size */ + rt_tick_t timeout = rt_tick_from_millisecond(settings_size); + rt_tick_t last_time = rt_tick_get(); + size_t size = 0, acked = 0, nacked = 0xFFFF; + + while (rt_tick_get() - last_time <= timeout) + { + at_get_send_size(socket, &size, &acked, &nacked); + if (nacked == 0) + { + return RT_EOK; + } + rt_thread_mdelay(100); + } + + return -RT_ETIMEOUT; +} + +/** + * 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 bc28_socket_send(struct at_socket *socket, const char *buff, size_t bfsz, enum at_socket_type type) +{ + uint32_t event = 0; + int result = 0, 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; + struct at_device_bc28 *bc28 = (struct at_device_bc28 *) device->user_data; + rt_mutex_t lock = device->client->lock; + + RT_ASSERT(buff); + + resp = at_create_resp(128, 2, rt_tick_from_millisecond(300)); + if (resp == RT_NULL) + { + LOG_E("no memory for resp create."); + return -RT_ENOMEM; + } + + rt_mutex_take(lock, RT_WAITING_FOREVER); + + /* set current socket for send URC event */ + bc28->user_data = (void *) device_socket; + + /* clear socket send event */ + event = SET_EVENT(device_socket, BC28_EVENT_SEND_OK | BC28_EVENT_SEND_FAIL); + bc28_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 < BC28_MODULE_SEND_MAX_SIZE) + { + cur_pkt_size = bfsz - sent_size; + } + else + { + cur_pkt_size = BC28_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+QISEND=%d,%d", device_socket, (int)cur_pkt_size) < 0) + { + result = -RT_ERROR; + goto __exit; + } + + rt_thread_mdelay(5);//delay at least 4ms + + /* 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 */ + event = SET_EVENT(device_socket, 0); + event_result = bc28_socket_event_recv(device, event, 10 * RT_TICK_PER_SECOND, RT_EVENT_FLAG_OR); + if (event_result < 0) + { + LOG_E("%s device socket(%d) wait event timeout.", device->name, device_socket); + result = -RT_ETIMEOUT; + goto __exit; + } + /* waiting OK or failed result */ + event = BC28_EVENT_SEND_OK | BC28_EVENT_SEND_FAIL; + event_result = bc28_socket_event_recv(device, event, 1 * RT_TICK_PER_SECOND, RT_EVENT_FLAG_OR); + if (event_result < 0) + { + LOG_E("%s device socket(%d) wait sned OK|FAIL timeout.", device->name, device_socket); + result = -RT_ETIMEOUT; + goto __exit; + } + /* check result */ + if (event_result & BC28_EVENT_SEND_FAIL) + { + LOG_E("%s device socket(%d) send failed.", device->name, device_socket); + result = -RT_ERROR; + goto __exit; + } + + if (type == AT_SOCKET_TCP) + { + at_wait_send_finish(socket, 2*cur_pkt_size); + } + + 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 bc28_domain_resolve(const char *name, char ip[16]) +{ + #define RESOLVE_RETRY 3 + + int i, result; + at_response_t resp = RT_NULL; + struct at_device *device = RT_NULL; + struct at_device_bc28 *bc28 = 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; + } + + /* the maximum response time is 60 seconds, but it set to 10 seconds is convenient to use. */ + resp = at_create_resp(128, 0, rt_tick_from_millisecond(300)); + if (!resp) + { + LOG_E("no memory for resp create."); + return -RT_ENOMEM; + } + + /* clear BC28_EVENT_DOMAIN_OK */ + bc28_socket_event_recv(device, BC28_EVENT_DOMAIN_OK, 0, RT_EVENT_FLAG_OR); + + bc28 = (struct at_device_bc28 *) device->user_data; + bc28->socket_data = ip; + + if (at_obj_exec_cmd(device->client, resp, "AT+QIDNSGIP=1,\"%s\"", name) != RT_EOK) + { + result = -RT_ERROR; + goto __exit; + } + + for(i = 0; i < RESOLVE_RETRY; i++) + { + /* waiting result event from AT URC, the device default connection timeout is 30 seconds.*/ + if (bc28_socket_event_recv(device, BC28_EVENT_DOMAIN_OK, 10 * RT_TICK_PER_SECOND, RT_EVENT_FLAG_OR) < 0) + { + result = -RT_ETIMEOUT; + continue; + } + else + { + if (rt_strlen(ip) < 8) + { + rt_thread_mdelay(100); + /* resolve failed, maybe receive an URC CRLF */ + result = -RT_ERROR; + continue; + } + else + { + result = RT_EOK; + break; + } + } + } + + __exit: + bc28->socket_data = RT_NULL; + if (resp) + { + at_delete_resp(resp); + } + + return result; + +} + +/** + * set AT socket event notice callback + * + * @param event notice event + * @param cb notice callback + */ +static void bc28_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_connect_func(struct at_client *client, const char *data, rt_size_t size) +{ + int device_socket = 0, result = 0; + 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, "+QIOPEN: %d,%d", &device_socket , &result); + + if (result == 0) + { + bc28_socket_event_send(device, SET_EVENT(device_socket, BC28_EVENT_CONN_OK)); + } + else + { + at_tcp_ip_errcode_parse(result); + bc28_socket_event_send(device, SET_EVENT(device_socket, BC28_EVENT_CONN_FAIL)); + } +} + +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; + struct at_device_bc28 *bc28 = 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; + } + + bc28 = (struct at_device_bc28 *) device->user_data; + device_socket = (int) bc28->user_data; + + if (rt_strstr(data, "SEND OK")) + { + bc28_socket_event_send(device, SET_EVENT(device_socket, BC28_EVENT_SEND_OK)); + } + else if (rt_strstr(data, "SEND FAIL")) + { + bc28_socket_event_send(device, SET_EVENT(device_socket, BC28_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_socket *socket = RT_NULL; + 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, "+QIURC: \"closed\",%d", &device_socket); + /* 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, NULL, 0); + } +} + +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; + + 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 and receive buffer size by receive data */ + sscanf(data, "+QIURC: \"recv\",%d,%d", &device_socket, (int *) &bfsz); + /* set receive timeout by receive buffer length, not less than 10 ms */ + timeout = bfsz > 10 ? bfsz : 10; + + if (device_socket < 0 || bfsz == 0) + { + return; + } + + recv_buf = (char *) rt_calloc(1, bfsz); + if (recv_buf == RT_NULL) + { + LOG_E("no memory for URC 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 */ + if (at_client_obj_recv(client, recv_buf, bfsz, timeout) != 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); + } +} + +static void urc_dnsqip_func(struct at_client *client, const char *data, rt_size_t size) +{ + int i = 0, j = 0; + char recv_ip[16] = {0}; + int result, ip_count, dns_ttl; + struct at_device *device = RT_NULL; + struct at_device_bc28 *bc28 = 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; + } + + bc28 = (struct at_device_bc28 *) device->user_data; + if (bc28->socket_data == RT_NULL) + { + LOG_D("%s device socket_data no config.", bc28->device_name); + return; + } + + for (i = 0; i < size; i++) + { + if (*(data + i) == '.') + j++; + } + /* There would be several dns result, we just pickup one */ + if (j == 3) + { + sscanf(data, "+QIURC: \"dnsgip\",\"%[^\"]", recv_ip); + recv_ip[15] = '\0'; + + rt_memcpy(bc28->socket_data, recv_ip, sizeof(recv_ip)); + + bc28_socket_event_send(device, BC28_EVENT_DOMAIN_OK); + } + else + { + sscanf(data, "+QIURC: \"dnsgip\",%d,%d,%d", &result, &ip_count, &dns_ttl); + if (result) + { + at_tcp_ip_errcode_parse(result); + } + } +} + +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); +} + +static void urc_qiurc_func(struct at_client *client, const char *data, rt_size_t size) +{ + RT_ASSERT(data && size); + + switch(*(data + 9)) + { + case 'c' : urc_close_func(client, data, size); break;//+QIURC: "closed" + case 'r' : urc_recv_func(client, data, size); break;//+QIURC: "recv" + case 'd' : urc_dnsqip_func(client, data, size); break;//+QIURC: "dnsgip" + default : urc_func(client, data, size); break; + } +} + +static const struct at_urc urc_table[] = +{ + {"SEND OK", "\r\n", urc_send_func}, + {"SEND FAIL", "\r\n", urc_send_func}, + {"+QIOPEN:", "\r\n", urc_connect_func}, + {"+QIURC:", "\r\n", urc_qiurc_func}, +}; + +static const struct at_socket_ops bc28_socket_ops = +{ + bc28_socket_connect, + bc28_socket_close, + bc28_socket_send, + bc28_domain_resolve, + bc28_socket_set_event_cb, +}; + +int bc28_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 bc28_socket_class_register(struct at_device_class *class) +{ + RT_ASSERT(class); + + class->socket_num = AT_DEVICE_BC28_SOCKETS_NUM; + class->socket_ops = &bc28_socket_ops; + + return RT_EOK; +} + +#endif /* AT_DEVICE_USING_BC28 && AT_USING_SOCKET */ +