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at_device/class/sim800c/at_device_sim800c.c

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【修改】更新 V2.0.0 版本，添加 AT Socket 多客户端支持功能 Signed-off-by: chenyong <1521761801@qq.com>
2019-05-27 13:41:17 +08:00
/*
* File : at_socket_sim800c.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
* 2018-06-12 malongwei first version
* 2019-05-13 chenyong multi AT socket client support
*/
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <at_device_sim800c.h>
#define LOG_TAG "at.dev"
#include <at_log.h>
#ifdef AT_DEVICE_USING_SIM800C
#define SIM800C_WAIT_CONNECT_TIME 5000
#define SIM800C_THREAD_STACK_SIZE 1024
#define SIM800C_THREAD_PRIORITY (RT_THREAD_PRIORITY_MAX/2)
/* AT+CSTT command default*/
static char *CSTT_CHINA_MOBILE = "AT+CSTT=\"CMNET\"";
static char *CSTT_CHINA_UNICOM = "AT+CSTT=\"UNINET\"";
static char *CSTT_CHINA_TELECOM = "AT+CSTT=\"CTNET\"";
static void sim800c_power_on(struct at_device *device)
{
struct at_device_sim800c *sim800c = RT_NULL;
sim800c = (struct at_device_sim800c *) device->user_data;
/* not nead to set pin configuration for m26 device power on */
if (sim800c->power_pin == -1 || sim800c->power_status_pin == -1)
{
return;
}
if (rt_pin_read(sim800c->power_status_pin) == PIN_HIGH)
{
return;
}
rt_pin_write(sim800c->power_pin, PIN_HIGH);
while (rt_pin_read(sim800c->power_status_pin) == PIN_LOW)
{
rt_thread_mdelay(10);
}
rt_pin_write(sim800c->power_pin, PIN_LOW);
}
static void sim800c_power_off(struct at_device *device)
{
struct at_device_sim800c *sim800c = RT_NULL;
sim800c = (struct at_device_sim800c *) device->user_data;
/* not nead to set pin configuration for m26 device power on */
if (sim800c->power_pin == -1 || sim800c->power_status_pin == -1)
{
return;
}
if (rt_pin_read(sim800c->power_status_pin) == PIN_LOW)
{
return;
}
rt_pin_write(sim800c->power_pin, PIN_HIGH);
while (rt_pin_read(sim800c->power_status_pin) == PIN_HIGH)
{
rt_thread_mdelay(10);
}
rt_pin_write(sim800c->power_pin, PIN_LOW);
}
/* ============================= sim76xx network interface operations ============================= */
/* set sim800c network interface device status and address information */
static int sim800c_netdev_set_info(struct netdev *netdev)
{
#define SIM800C_IEMI_RESP_SIZE 32
#define SIM800C_IPADDR_RESP_SIZE 32
#define SIM800C_DNS_RESP_SIZE 96
#define SIM800C_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;
if (netdev == RT_NULL)
{
LOG_E("input network interface device is NULL.");
return -RT_ERROR;
}
device = at_device_get_by_name(AT_DEVICE_NAMETYPE_NETDEV, netdev->name);
if (device == RT_NULL)
{
LOG_E("get sim800c device by netdev name(%s) failed.", netdev->name);
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(SIM800C_IEMI_RESP_SIZE, 0, SIM800C_INFO_RESP_TIMO);
if (resp == RT_NULL)
{
LOG_E("sim800c device(%s) set IP address failed, no memory for response object.", device->name);
result = -RT_ENOMEM;
goto __exit;
}
/* set network interface device hardware address(IEMI) */
{
#define SIM800C_NETDEV_HWADDR_LEN 8
#define SIM800C_IEMI_LEN 15
char iemi[SIM800C_IEMI_LEN] = {0};
int i = 0, j = 0;
/* send "AT+GSN" commond to get device IEMI */
if (at_obj_exec_cmd(device->client, resp, "AT+GSN") < 0)
{
result = -RT_ERROR;
goto __exit;
}
if (at_resp_parse_line_args(resp, 2, "%s", iemi) <= 0)
{
LOG_E("sim800c device(%s) prase \"AT+GSN\" commands resposne data error.", device->name);
result = -RT_ERROR;
goto __exit;
}
LOG_D("sim800c device(%s) IEMI number: %s", device->name, iemi);
netdev->hwaddr_len = SIM800C_NETDEV_HWADDR_LEN;
/* get hardware address by IEMI */
for (i = 0, j = 0; i < SIM800C_NETDEV_HWADDR_LEN && j < SIM800C_IEMI_LEN; i++, j += 2)
{
if (j != SIM800C_IEMI_LEN - 1)
{
netdev->hwaddr[i] = (iemi[j] - '0') * 10 + (iemi[j + 1] - '0');
}
else
{
netdev->hwaddr[i] = (iemi[j] - '0');
}
}
}
/* set network interface device IP address */
{
#define IP_ADDR_SIZE_MAX 16
char ipaddr[IP_ADDR_SIZE_MAX] = {0};
at_resp_set_info(resp, SIM800C_IPADDR_RESP_SIZE, 2, SIM800C_INFO_RESP_TIMO);
/* send "AT+CIFSR" commond to get IP address */
if (at_obj_exec_cmd(device->client, resp, "AT+CIFSR") < 0)
{
result = -RT_ERROR;
goto __exit;
}
if (at_resp_parse_line_args_by_kw(resp, ".", "%s", ipaddr) <= 0)
{
LOG_E("sim800c device(%s) prase \"AT+CIFSR\" commands resposne data error!", device->name);
result = -RT_ERROR;
goto __exit;
}
LOG_D("sim800c device(%s) 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};
at_resp_set_info(resp, SIM800C_DNS_RESP_SIZE, 0, SIM800C_INFO_RESP_TIMO);
/* send "AT+CDNSCFG?" commond to get DNS servers address */
if (at_obj_exec_cmd(device->client, resp, "AT+CDNSCFG?") < 0)
{
result = -RT_ERROR;
goto __exit;
}
if (at_resp_parse_line_args_by_kw(resp, "PrimaryDns:", "PrimaryDns:%s", dns_server1) <= 0 ||
at_resp_parse_line_args_by_kw(resp, "SecondaryDns:", "SecondaryDns:%s", dns_server2) <= 0)
{
LOG_E("Prase \"AT+CDNSCFG?\" commands resposne data error!");
result = -RT_ERROR;
goto __exit;
}
LOG_D("sim800c device(%s) primary DNS server address: %s", device->name, dns_server1);
LOG_D("sim800c device(%s) 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 check_link_status_entry(void *parameter)
{
#define SIM800C_LINK_STATUS_OK 1
#define SIM800C_LINK_RESP_SIZE 64
#define SIM800C_LINK_RESP_TIMO (3 * RT_TICK_PER_SECOND)
#define SIM800C_LINK_DELAY_TIME (30 * RT_TICK_PER_SECOND)
at_response_t resp = RT_NULL;
int result_code, link_status;
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 sim800c device by netdev name(%s) failed.", netdev->name);
return;
}
resp = at_create_resp(SIM800C_LINK_RESP_SIZE, 0, SIM800C_LINK_RESP_TIMO);
if (resp == RT_NULL)
{
LOG_E("sim800c device(%s) set check link status failed, no memory for response object.", device->name);
return;
}
while (1)
{
/* send "AT+CGREG?" commond to check netweork interface device link status */
if (at_obj_exec_cmd(device->client, resp, "AT+CGREG?") < 0)
{
rt_thread_mdelay(SIM800C_LINK_DELAY_TIME);
continue;
}
link_status = -1;
at_resp_parse_line_args_by_kw(resp, "+CGREG:", "+CGREG: %d,%d", &result_code, &link_status);
/* check the network interface device link status */
if ((SIM800C_LINK_STATUS_OK == link_status) != netdev_is_link_up(netdev))
{
netdev_low_level_set_link_status(netdev, (SIM800C_LINK_STATUS_OK == link_status));
}
rt_thread_mdelay(SIM800C_LINK_DELAY_TIME);
}
}
static int sim800c_netdev_check_link_status(struct netdev *netdev)
{
#define SIM800C_LINK_THREAD_TICK 20
#define SIM800C_LINK_THREAD_STACK_SIZE 512
#define SIM800C_LINK_THREAD_PRIORITY (RT_THREAD_PRIORITY_MAX - 2)
rt_thread_t tid;
char tname[RT_NAME_MAX] = {0};
if (netdev == RT_NULL)
{
LOG_E("input network interface device is NULL.\n");
return -RT_ERROR;
}
rt_snprintf(tname, RT_NAME_MAX, "%s_link", netdev->name);
tid = rt_thread_create(tname, check_link_status_entry, (void *) netdev,
SIM800C_LINK_THREAD_STACK_SIZE, SIM800C_LINK_THREAD_PRIORITY, SIM800C_LINK_THREAD_TICK);
if (tid)
{
rt_thread_startup(tid);
}
return RT_EOK;
}
static int sim800c_net_init(struct at_device *device);
static int sim800c_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 sim800c device by netdev name(%s) failed.", netdev->name);
return -RT_ERROR;
}
if (device->is_init == RT_FALSE)
{
sim800c_net_init(device);
device->is_init = RT_TRUE;
netdev_low_level_set_status(netdev, RT_TRUE);
LOG_D("the network interface device(%s) set up status.", netdev->name);
}
return RT_EOK;
}
static int sim800c_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 sim800c device by netdev name(%s) failed.", netdev->name);
return -RT_ERROR;
}
if (device->is_init == RT_TRUE)
{
sim800c_power_off(device);
device->is_init = RT_FALSE;
netdev_low_level_set_status(netdev, RT_FALSE);
LOG_D("the network interface device(%s) set down status.", netdev->name);
}
return RT_EOK;
}
static int sim800c_netdev_set_dns_server(struct netdev *netdev, uint8_t dns_num, ip_addr_t *dns_server)
{
#define SIM800C_DNS_RESP_LEN 8
#define SIM800C_DNS_RESP_TIMEO 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 sim800c device by netdev name(%s) failed.", netdev->name);
return -RT_ERROR;
}
resp = at_create_resp(SIM800C_DNS_RESP_LEN, 0, SIM800C_DNS_RESP_TIMEO);
if (resp == RT_NULL)
{
LOG_D("sim800c set dns server failed, no memory for response object.");
result = -RT_ENOMEM;
goto __exit;
}
/* send "AT+CDNSCFG=<pri_dns>[,<sec_dns>]" commond to set dns servers */
if (at_obj_exec_cmd(device->client, resp, "AT+CDNSCFG=\"%s\"", inet_ntoa(*dns_server)) < 0)
{
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;
}
static int sim800c_ping_domain_resolve(struct at_device *device, const char *name, char ip[16])
{
int result = RT_EOK;
char recv_ip[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 sim800c device(%s) response structure.", device->name);
return -RT_ENOMEM;
}
if (at_obj_exec_cmd(device->client, resp, "AT+CDNSGIP=\"%s\"", name) < 0)
{
result = -RT_ERROR;
goto __exit;
}
/* parse the third line of response data, get the IP address */
if (at_resp_parse_line_args_by_kw(resp, "+CDNSGIP:", "%*[^,],%*[^,],\"%[^\"]", recv_ip) < 0)
{
rt_thread_mdelay(100);
/* resolve failed, maybe receive an URC CRLF */
}
if (rt_strlen(recv_ip) < 8)
{
rt_thread_mdelay(100);
/* resolve failed, maybe receive an URC CRLF */
}
else
{
rt_strncpy(ip, recv_ip, 15);
ip[15] = '\0';
}
__exit:
if (resp)
{
at_delete_resp(resp);
}
return result;
}
#ifdef NETDEV_USING_PING
static int sim800c_netdev_ping(struct netdev *netdev, const char *host,
size_t data_len, uint32_t timeout, struct netdev_ping_resp *ping_resp)
{
#define SIM800C_PING_RESP_SIZE 128
#define SIM800C_PING_IP_SIZE 16
#define SIM800C_PING_TIMEO (5 * RT_TICK_PER_SECOND)
#define SIM800C_PING_ERR_TIME 600
#define SIM800C_PING_ERR_TTL 255
int result = RT_EOK;
int response, time, ttl, i, err_code = 0;
char ip_addr[SIM800C_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 sim800c device by netdev name(%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 (sim800c_ping_domain_resolve(device, host, ip_addr) < 0)
{
return -RT_ERROR;
}
rt_memset(ip_addr, 0x00, SIM800C_PING_IP_SIZE);
}
resp = at_create_resp(SIM800C_PING_RESP_SIZE, 0, SIM800C_PING_TIMEO);
if (resp == RT_NULL)
{
LOG_E("sim800c device(%s) set dns server failed, no memory for response object.", device->name);
result = -RT_ERROR;
goto __exit;
}
/* domain name prase error options */
if (at_resp_parse_line_args_by_kw(resp, "+CDNSGIP: 0", "+CDNSGIP: 0,%d", &err_code) > 0)
{
/* 3 - network error, 8 - dns common error */
if (err_code == 3 || err_code == 8)
{
result = -RT_ERROR;
goto __exit;
}
}
/* send "AT+CIPPING=<IP addr>[,<retryNum>[,<dataLen>[,<timeout>[,<ttl>]]]]" commond to send ping request */
if (at_obj_exec_cmd(device->client, resp, "AT+CIPPING=%s,1,%d,%d,64",
host, data_len, SIM800C_PING_TIMEO / (RT_TICK_PER_SECOND / 10)) < 0)
{
result = -RT_ERROR;
goto __exit;
}
if (at_resp_parse_line_args_by_kw(resp, "+CIPPING:", "+CIPPING:%d,\"%[^\"]\",%d,%d",
&response, ip_addr, &time, &ttl) <= 0)
{
result = -RT_ERROR;
goto __exit;
}
/* the ping request timeout expires, the response time settting to 600 and ttl setting to 255 */
if (time == SIM800C_PING_ERR_TIME && ttl == SIM800C_PING_ERR_TTL)
{
result = -RT_ETIMEOUT;
goto __exit;
}
inet_aton(ip_addr, &(ping_resp->ip_addr));
ping_resp->data_len = data_len;
/* reply time, in units of 100 ms */
ping_resp->ticks = time * 100;
ping_resp->ttl = ttl;
__exit:
if (resp)
{
at_delete_resp(resp);
}
return result;
}
#endif /* NETDEV_USING_PING */
#ifdef NETDEV_USING_NETSTAT
void sim800c_netdev_netstat(struct netdev *netdev)
{
// TODO netstat support
}
#endif /* NETDEV_USING_NETSTAT */
const struct netdev_ops sim800c_netdev_ops =
{
sim800c_netdev_set_up,
sim800c_netdev_set_down,
RT_NULL, /* not support set ip, netmask, gatway address */
sim800c_netdev_set_dns_server,
RT_NULL, /* not support set DHCP status */
#ifdef NETDEV_USING_PING
sim800c_netdev_ping,
#endif
#ifdef NETDEV_USING_NETSTAT
sim800c_netdev_netstat,
#endif
};
static struct netdev *sim800c_netdev_add(const char *netdev_name)
{
#define SIM800C_NETDEV_MTU 1500
struct netdev *netdev = RT_NULL;
RT_ASSERT(netdev_name);
netdev = (struct netdev *) rt_calloc(1, sizeof(struct netdev));
if (netdev == RT_NULL)
{
LOG_E("no memory for sim800c device(%s) netdev structure.", netdev_name);
return RT_NULL;
}
netdev->mtu = SIM800C_NETDEV_MTU;
netdev->ops = &sim800c_netdev_ops;
#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 sim800c */
static void sim800c_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[10] = {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 sim800c device(%s) response structure.", device->name);
return;
}
LOG_D("start initializing the sim800c device(%s)", device->name);
while (retry_num--)
{
rt_memset(parsed_data, 0, sizeof(parsed_data));
rt_thread_mdelay(500);
sim800c_power_on(device);
rt_thread_mdelay(1000);
/* wait sim800c startup finish */
if (at_client_obj_wait_connect(client, SIM800C_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("sim800c device(%s) SIM card detection success.", device->name);
break;
}
rt_thread_mdelay(1000);
}
if (i == CPIN_RETRY)
{
LOG_E("sim800c device(%s) 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("sim800c device(%s) GSM network is registered(%s),", device->name, parsed_data);
break;
}
rt_thread_mdelay(1000);
}
if (i == CREG_RETRY)
{
LOG_E("sim800c device(%s) GSM network 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("sim800c device(%s) GPRS network is registered(%s).", device->name, parsed_data);
break;
}
rt_thread_mdelay(1000);
}
if (i == CGREG_RETRY)
{
LOG_E("sim800c device(%s) GPRS network 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("sim800c device(%s) signal strength: %s", device->name, parsed_data);
break;
}
rt_thread_mdelay(1000);
}
if (i == CSQ_RETRY)
{
LOG_E("sim800c device(%s) signal strength check failed (%s)", device->name, parsed_data);
result = -RT_ERROR;
goto __exit;
}
/* the device default response timeout is 40 seconds, but it set to 15 seconds is convenient to use. */
AT_SEND_CMD(client, resp, 2, 20 * 1000, "AT+CIPSHUT");
/* Set to multiple connections */
AT_SEND_CMD(client, resp, 0, 300, "AT+CIPMUX?");
at_resp_parse_line_args_by_kw(resp, "+CIPMUX:", "+CIPMUX: %d", &qimux);
if (qimux == 0)
{
AT_SEND_CMD(client, resp, 0, 300, "AT+CIPMUX=1");
}
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("sim800c device(%s) 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("sim800c device(%s) 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("sim800c device(%s) network operator: %s", device->name, parsed_data);
}
/* the device default response timeout is 150 seconds, but it set to 20 seconds is convenient to use. */
AT_SEND_CMD(client, resp, 0, 20 * 1000, "AT+CIICR");
AT_SEND_CMD(client, resp, 2, 300, "AT+CIFSR");
if (at_resp_get_line_by_kw(resp, "ERROR") != RT_NULL)
{
LOG_E("sim800c device(%s) get the local address failed.", device->name);
result = -RT_ERROR;
goto __exit;
}
result = RT_EOK;
__exit:
if (result == RT_EOK)
{
break;
}
else
{
/* power off the sim800c device */
sim800c_power_off(device);
rt_thread_mdelay(1000);
LOG_I("sim800c device(%s) initialize retry...", device->name);
}
}
if (resp)
{
at_delete_resp(resp);
}
if (result == RT_EOK)
{
/* set network interface device status and address information */
sim800c_netdev_set_info(device->netdev);
sim800c_netdev_check_link_status(device->netdev);
LOG_I("sim800c device(%s) network initialize success!", device->name);
}
else
{
LOG_E("sim800c device(%s) network initialize failed(%d)!", device->name, result);
}
}
static int sim800c_net_init(struct at_device *device)
{
#ifdef AT_DEVICE_SIM800C_INIT_ASYN
rt_thread_t tid;
tid = rt_thread_create("sim800c_net_init", sim800c_init_thread_entry, (void *)device,
SIM800C_THREAD_STACK_SIZE, SIM800C_THREAD_PRIORITY, 20);
if (tid)
{
rt_thread_startup(tid);
}
else
{
LOG_E("create sim800c device(%s) initialization thread failed.", device->name);
return -RT_ERROR;
}
#else
sim800c_init_thread_entry(device);
#endif /* AT_DEVICE_SIM800C_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);
}
/* sim800c device URC table for the device control */
static const struct at_urc urc_table[] =
{
{"RDY", "\r\n", urc_func},
};
static int sim800c_init(struct at_device *device)
{
struct at_device_sim800c *sim800c = (struct at_device_sim800c *) device->user_data;
/* initialize AT client */
at_client_init(sim800c->client_name, sim800c->recv_line_num);
device->client = at_client_get(sim800c->client_name);
if (device->client == RT_NULL)
{
LOG_E("sim800c device(%s) initialize failed, get AT client(%s) failed.", sim800c->device_name, sim800c->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
sim800c_socket_init(device);
#endif
/* add sim800c device to the netdev list */
device->netdev = sim800c_netdev_add(sim800c->device_name);
if (device->netdev == RT_NULL)
{
LOG_E("sim800c device(%s) initialize failed, get network interface device failed.", sim800c->device_name);
return -RT_ERROR;
}
/* initialize sim800c pin configuration */
if (sim800c->power_pin != -1 && sim800c->power_status_pin != -1)
{
rt_pin_mode(sim800c->power_pin, PIN_MODE_OUTPUT);
rt_pin_mode(sim800c->power_status_pin, PIN_MODE_INPUT);
}
/* initialize sim800c device network */
return sim800c_netdev_set_up(device->netdev);
}
static int sim800c_deinit(struct at_device *device)
{
return sim800c_netdev_set_down(device->netdev);
}
static int sim800c_control(struct at_device *device, int cmd, void *arg)
{
int result = -RT_ERROR;
RT_ASSERT(device);
switch (cmd)
{
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_SLEEP:
case AT_DEVICE_CTRL_WAKEUP:
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("sim800c 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 sim800c_device_ops =
{
sim800c_init,
sim800c_deinit,
sim800c_control,
};
static int sim800c_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 sim800c device class create.");
return -RT_ENOMEM;
}
/* fill sim800c device class object */
#ifdef AT_USING_SOCKET
sim800c_socket_class_register(class);
#endif
class->device_ops = &sim800c_device_ops;
return at_device_class_register(class, AT_DEVICE_CLASS_SIM800C);
}
INIT_DEVICE_EXPORT(sim800c_device_class_register);
#endif /* AT_DEVICE_USING_SIM800C */