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at_device/at_socket_sim76xx.c

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/*
* File : at_socket_sim76xx.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
* 2018-12-22 thomasonegd first version
* 2019-03-06 thomasonegd fix udp connection.
* 2019-03-08 thomasonegd add power_on & power_off api
*/
#include <at.h>
#include <stdio.h>
#include <string.h>
#include <rtthread.h>
#include <sys/socket.h>
#include <netdev.h>
#include <at_socket.h>
#if !defined(AT_SW_VERSION_NUM) || AT_SW_VERSION_NUM < 0x10200
#error "This AT Client version is older, please check and update latest AT Client!"
#endif
#define LOG_TAG "at.sim76xx"
#include <at_log.h>
#ifdef AT_DEVICE_SIM76XX
#define SIM76XX_NETDEV_NAME "sim76xx"
#define SIM76XX_MODULE_SEND_MAX_SIZE 1500
#define SIM76XX_WAIT_CONNECT_TIME 5000
#define SIM76XX_THREAD_STACK_SIZE 1024
#define SIM76XX_THREAD_PRIORITY (RT_THREAD_PRIORITY_MAX/2)
#define SIM76XX_MAX_CONNECTIONS 10
/* set real event by current socket and current state */
#define SET_EVENT(socket, event) (((socket + 1) << 16) | (event))
/* AT socket event type */
#define SIM76XX_EVENT_CONN_OK (1L << 0)
#define SIM76XX_EVENT_SEND_OK (1L << 1)
#define SIM76XX_EVENT_RECV_OK (1L << 2)
#define SIM76XX_EVNET_CLOSE_OK (1L << 3)
#define SIM76XX_EVENT_CONN_FAIL (1L << 4)
#define SIM76XX_EVENT_SEND_FAIL (1L << 5)
uint8_t at_socket_init = 0;
static int cur_socket;
static int cur_send_bfsz;
static rt_event_t at_socket_event;
static rt_mutex_t at_event_lock;
static at_evt_cb_t at_evt_cb_set[] = {
[AT_SOCKET_EVT_RECV] = NULL,
[AT_SOCKET_EVT_CLOSED] = NULL,
};
static char udp_ipstr[SIM76XX_MAX_CONNECTIONS][16];
static int udp_port[SIM76XX_MAX_CONNECTIONS];
static void at_tcp_ip_errcode_parse(int result)//Unsolicited TCP/IP command<err> codes
{
switch(result)
{
case 0 : LOG_D("%d : operation succeeded ", result); break;
case 1 : LOG_E("%d : UNetwork failure", result); break;
case 2 : LOG_E("%d : Network not opened", result); break;
case 3 : LOG_E("%d : Wrong parameter", result); break;
case 4 : LOG_E("%d : Operation not supported", result); break;
case 5 : LOG_E("%d : Failed to create socket", result); break;
case 6 : LOG_E("%d : Failed to bind socket", result); break;
case 7 : LOG_E("%d : TCP server is already listening", result); break;
case 8 : LOG_E("%d : Busy", result); break;
case 9 : LOG_E("%d : Sockets opened", result); break;
case 10 : LOG_E("%d : Timeout ", result); break;
case 11 : LOG_E("%d : DNS parse failed for AT+CIPOPEN", result); break;
case 255 : LOG_E("%d : Unknown error", result); break;
}
}
static int at_socket_event_send(uint32_t event)
{
return (int) rt_event_send(at_socket_event, event);
}
static int at_socket_event_recv(uint32_t event, uint32_t timeout, rt_uint8_t option)
{
int result = 0;
rt_uint32_t recved;
result = rt_event_recv(at_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 sim76xx_socket_close(int socket)
{
at_response_t resp = RT_NULL;
int result = RT_EOK;
int activated;
uint8_t lnk_stat[10];
resp = at_create_resp(128, 0, rt_tick_from_millisecond(500));
if (!resp)
{
LOG_E("No memory for response structure!");
return -RT_ENOMEM;
}
rt_mutex_take(at_event_lock, RT_WAITING_FOREVER);
rt_thread_delay(rt_tick_from_millisecond(100));
// check socket link_state
if (at_exec_cmd(resp,"AT+CIPCLOSE?") < 0)
{
result = -RT_ERROR;
goto __exit;
}
if(at_resp_parse_line_args_by_kw(resp,"+CIPCLOSE:", "+CIPCLOSE: %d,%d,%d,%d,%d,%d,%d,%d,%d,%d",&lnk_stat[0],&lnk_stat[1],&lnk_stat[1]
,&lnk_stat[2],&lnk_stat[3],&lnk_stat[4],&lnk_stat[5],&lnk_stat[6],&lnk_stat[7],&lnk_stat[8],&lnk_stat[9]) < 0)
{
result = -RT_ERROR;
goto __exit;
}
if (lnk_stat[socket])
{
// close tcp or udp socket if connected
if (at_exec_cmd(resp, "AT+CIPCLOSE=%d", socket) < 0)
{
result = -RT_ERROR;
goto __exit;
}
}
// check the network open or not
if (at_exec_cmd(resp,"AT+NETOPEN?") < 0)
{
result = -RT_ERROR;
goto __exit;
}
if(at_resp_parse_line_args_by_kw(resp, "+NETOPEN:", "+NETOPEN: %d", &activated) < 0)
{
result = -RT_ERROR;
goto __exit;
}
if (activated)
{
// if already open,then close it.
if (at_exec_cmd(resp,"AT+NETCLOSE") < 0)
{
result = -RT_ERROR;
goto __exit;
}
}
__exit:
rt_mutex_release(at_event_lock);
if (resp)
{
at_delete_resp(resp);
}
return result;
}
/**
* open packet network
*/
static int sim76xx_network_socket_open(void)
{
int result = RT_EOK;
at_response_t resp = RT_NULL;
int activated;
resp = at_create_resp(128, 0, rt_tick_from_millisecond(5000));
if (!resp)
{
LOG_E("No memory for response structure!");
return -RT_ENOMEM;
}
rt_mutex_take(at_event_lock, RT_WAITING_FOREVER);
// check the network open or not
if (at_exec_cmd(resp,"AT+NETOPEN?") < 0)
{
result = -RT_ERROR;
goto __exit;
}
if(at_resp_parse_line_args_by_kw(resp, "+NETOPEN:", "+NETOPEN: %d", &activated) < 0)
{
result = -RT_ERROR;
goto __exit;
}
if (activated)
{//network socket is already opened
goto __exit;
}else
{
// if not opened the open it.
if (at_exec_cmd(resp,"AT+NETOPEN") < 0)
{
result = -RT_ERROR;
goto __exit;
}
}
__exit:
rt_mutex_release(at_event_lock);
if (resp)
{
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 sim76xx_socket_connect(int socket, char *ip, int32_t port, enum at_socket_type type, rt_bool_t is_client)
{
at_response_t resp = RT_NULL;
int result = RT_EOK,event_result = 0;
rt_bool_t retryed = RT_FALSE;
RT_ASSERT(ip);
RT_ASSERT(port >= 0);
resp = at_create_resp(128, 0, rt_tick_from_millisecond(5000));
if (!resp)
{
LOG_E("No memory for response structure!");
return -RT_ENOMEM;
}
rt_mutex_take(at_event_lock, RT_WAITING_FOREVER);
__retry:
if (is_client)
{
//open network socket first(AT+NETOPEN)
sim76xx_network_socket_open();
switch (type)
{
case AT_SOCKET_TCP:
/* send AT commands to connect TCP server */
if (at_exec_cmd(resp, "AT+CIPOPEN=%d,\"TCP\",\"%s\",%d", socket, ip, port) < 0)
{
result = -RT_ERROR;
}
break;
case AT_SOCKET_UDP:
if (at_exec_cmd(resp, "AT+CIPOPEN=%d,\"UDP\",,,%d", socket, port) < 0)
{
result = -RT_ERROR;
}
strcpy(udp_ipstr[socket],ip);
udp_port[socket] = port;
break;
default:
LOG_E("Not supported connect type : %d.", type);
result = -RT_ERROR;
goto __exit;
}
}
/* waiting result event from AT URC, the device default connection timeout is 75 seconds, but it set to 10 seconds is convenient to use.*/
if (at_socket_event_recv(SET_EVENT(socket, 0), rt_tick_from_millisecond(10 * 1000), RT_EVENT_FLAG_OR) < 0)
{
LOG_E("socket (%d) connect failed, wait connect result timeout.", socket);
result = -RT_ETIMEOUT;
goto __exit;
}
/* waiting OK or failed result */
if ((event_result = at_socket_event_recv(SIM76XX_EVENT_CONN_OK | SIM76XX_EVENT_CONN_FAIL, rt_tick_from_millisecond(1 * 1000),
RT_EVENT_FLAG_OR)) < 0)
{
LOG_E("socket (%d) connect failed, wait connect OK|FAIL timeout.", socket);
result = -RT_ETIMEOUT;
goto __exit;
}
/* check result */
if (event_result & SIM76XX_EVENT_CONN_FAIL)
{
if (!retryed)
{
LOG_E("socket (%d) connect failed, maybe the socket was not be closed at the last time and now will retry.", socket);
if (sim76xx_socket_close(socket) < 0)
{
goto __exit;
}
retryed = RT_TRUE;
goto __retry;
}
LOG_E("socket (%d) connect failed, failed to establish a connection.", socket);
result = -RT_ERROR;
goto __exit;
}
if (result != RT_EOK && !retryed)
{
LOG_D("socket (%d) connect failed, maybe the socket was not be closed at the last time and now will retry.", socket);
if (sim76xx_socket_close(socket) < 0)
{
goto __exit;
}
retryed = RT_TRUE;
result = RT_EOK;
goto __retry;
}
__exit:
rt_mutex_release(at_event_lock);
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 sim76xx_socket_send(int socket, const char *buff, size_t bfsz, enum at_socket_type type)
{
int result = RT_EOK;
int event_result = 0;
at_response_t resp = RT_NULL;
size_t cur_pkt_size = 0, sent_size = 0;
RT_ASSERT(buff);
RT_ASSERT(bfsz > 0);
resp = at_create_resp(128, 2, rt_tick_from_millisecond(5000));
if (!resp)
{
LOG_E("No memory for response structure!");
return -RT_ENOMEM;
}
rt_mutex_take(at_event_lock, RT_WAITING_FOREVER);
/* set current socket for send URC event */
cur_socket = socket;
/* set AT client end sign to deal with '>' sign.*/
at_set_end_sign('>');
while (sent_size < bfsz)
{
if (bfsz - sent_size < SIM76XX_MODULE_SEND_MAX_SIZE)
{
cur_pkt_size = bfsz - sent_size;
}
else
{
cur_pkt_size = SIM76XX_MODULE_SEND_MAX_SIZE;
}
switch(type)
{
case AT_SOCKET_TCP:
/* send the "AT+CIPSEND" commands to AT server than receive the '>' response on the first line. */
if (at_exec_cmd(resp, "AT+CIPSEND=%d,%d", socket, cur_pkt_size) < 0)
{
result = -RT_ERROR;
goto __exit;
}
break;
case AT_SOCKET_UDP:
/* send the "AT+CIPSEND" commands to AT server than receive the '>' response on the first line. */
if (at_exec_cmd(resp, "AT+CIPSEND=%d,%d,\"%s\",%d", socket, cur_pkt_size,udp_ipstr[socket],udp_port[socket]) < 0)
{
result = -RT_ERROR;
goto __exit;
}
break;
}
/* send the real data to server or client */
result = (int) at_client_send(buff + sent_size, cur_pkt_size);
if (result == 0)
{
result = -RT_ERROR;
goto __exit;
}
/* waiting result event from AT URC */
if (at_socket_event_recv(SET_EVENT(socket, 0), rt_tick_from_millisecond(5 * 1000), RT_EVENT_FLAG_OR) < 0)
{
LOG_E("socket (%d) send failed, wait connect result timeout.", socket);
result = -RT_ETIMEOUT;
goto __exit;
}
/* waiting OK or failed result */
if ((event_result = at_socket_event_recv(SIM76XX_EVENT_SEND_OK | SIM76XX_EVENT_SEND_FAIL, rt_tick_from_millisecond(5 * 1000),
RT_EVENT_FLAG_OR)) < 0)
{
LOG_E("socket (%d) send failed, wait connect OK|FAIL timeout.", socket);
result = -RT_ETIMEOUT;
goto __exit;
}
/* check result */
if (event_result & SIM76XX_EVENT_SEND_FAIL)
{
LOG_E("socket (%d) send failed, return failed.", socket);
result = -RT_ERROR;
goto __exit;
}
if (type == AT_SOCKET_TCP)
{
cur_pkt_size = cur_send_bfsz;
}
sent_size += cur_pkt_size;
}
__exit:
/* reset the end sign for data */
at_set_end_sign(0);
rt_mutex_release(at_event_lock);
if (resp)
{
at_delete_resp(resp);
}
return 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
* -2: wait socket event timeout
* -5: no memory
*/
static int sim76xx_domain_resolve(const char *name, char ip[16])
{
#define RESOLVE_RETRY 5
int i, result = RT_EOK;
char domain[32] = { 0 };
char domain_ip[16] = {0};
at_response_t resp = RT_NULL;
RT_ASSERT(name);
RT_ASSERT(ip);
resp = at_create_resp(128, 0, rt_tick_from_millisecond(5000));
if (!resp)
{
LOG_E("No memory for response structure!");
return -RT_ENOMEM;
}
rt_mutex_take(at_event_lock, RT_WAITING_FOREVER);
for(i = 0; i < RESOLVE_RETRY; i++)
{
if (at_exec_cmd(resp, "AT+CDNSGIP=\"%s\"", name) < 0)
{
rt_thread_delay(rt_tick_from_millisecond(200));
/* resolve failed, maybe receive an URC CRLF */
continue;
}
/* parse the third line of response data, get the IP address */
/* +CDNSGIP: 1,"www.baidu.com","14.215.177.39" */
if(at_resp_parse_line_args_by_kw(resp, "+CDNSGIP:", "+CDNSGIP: 1,%[^,],\"%[^\"]", domain,domain_ip) < 0)
{
rt_thread_delay(rt_tick_from_millisecond(200));
/* resolve failed, maybe receive an URC CRLF */
continue;
}
if (strlen(domain_ip) < 8)
{
rt_thread_delay(rt_tick_from_millisecond(200));
/* resolve failed, maybe receive an URC CRLF */
continue;
}
else
{
strncpy(ip, domain_ip, 15);
ip[15] = '\0';
break;
}
}
rt_mutex_release(at_event_lock);
if (i == RESOLVE_RETRY)
{
result = -RT_ERROR;
}
if (resp)
{
at_delete_resp(resp);
}
return result;
}
/**
* set AT socket event notice callback
*
* @param event notice event
* @param cb notice callback
*/
static void sim76xx_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(const char *data, rt_size_t size)
{
int socket = 0;
int rqst_size;
int cnf_size;
RT_ASSERT(data && size);
sscanf(data,"+CIPSEND: %d,%d,%d",&socket,&rqst_size,&cnf_size);
cur_send_bfsz = cnf_size;
at_socket_event_send(SET_EVENT(socket, SIM76XX_EVENT_SEND_OK));
}
static void urc_ping_func(const char *data, rt_size_t size)
{
static int icmp_seq = 0;
int i, j = 0;
int result, recv_len, time, ttl;
int sent, rcvd, lost, min, max, avg;
char dst_ip[16] = { 0 };
RT_ASSERT(data);
for (i=0;i<size;i++)
{
if(*(data+i) == '.')
j++;
}
if (j != 0)
{
sscanf(data, "+CPING: %d,%[^,],%d,%d,%d", &result, dst_ip, &recv_len, &time, &ttl);
if (result == 1)
LOG_I("%d bytes from %s icmp_seq=%d ttl=%d time=%d ms", recv_len, dst_ip, icmp_seq++, ttl, time);
}
else
{
sscanf(data, "+CPING: %d,%d,%d,%d,%d,%d,%d", &result, &sent, &rcvd, &lost, &min, &max, &avg);
if (result == 3)
LOG_I("%d sent %d received %d lost, min=%dms max=%dms average=%dms", sent, rcvd, lost, min, max, avg);
if (result == 2)
LOG_I("ping requst timeout");
}
}
static void urc_connect_func(const char *data, rt_size_t size)
{
int socket = 0;
int result = 0;
RT_ASSERT(data && size);
sscanf(data, "+CIPOPEN: %d,%d", &socket , &result);
if (result == 0)
{
at_socket_event_send(SET_EVENT(socket, SIM76XX_EVENT_CONN_OK));
}
else
{
at_tcp_ip_errcode_parse(result);
at_socket_event_send(SET_EVENT(socket, SIM76XX_EVENT_CONN_FAIL));
}
}
static void urc_close_func(const char *data, rt_size_t size)
{
int socket = 0;
int reason = 0;
RT_ASSERT(data && size);
sscanf(data, "+IPCLOSE %d,%d", &socket, &reason);
switch(reason)
{
case 0:
LOG_E("socket is closed by local,active");
break;
case 1:
LOG_E("socket is closed by remote,passive");
break;
case 2:
LOG_E("socket is closed for sending timeout");
break;
}
/* 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);
}
}
static void urc_recv_func(const char *data, rt_size_t size)
{
rt_size_t bfsz = 0, temp_size = 0;
rt_int32_t timeout;
char *recv_buf = RT_NULL, temp[8];
RT_ASSERT(data && size);
/* get the current socket and receive buffer size by receive data */
sscanf(data, "+IPD%d:",(int *) &bfsz);
/* get receive timeout by receive buffer length */
timeout = bfsz * 10;
if (bfsz == 0)
return;
recv_buf = rt_calloc(1, bfsz);
if (!recv_buf)
{
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_recv(temp, sizeof(temp), timeout);
}
else
{
at_client_recv(temp, bfsz - temp_size, timeout);
}
temp_size += sizeof(temp);
}
return;
}
/* sync receive data */
if (at_client_recv(recv_buf, bfsz, timeout) != bfsz)
{
LOG_E("receive size(%d) data failed!", bfsz);
rt_free(recv_buf);
return;
}
/* notice the receive buffer and buffer size */
if (at_evt_cb_set[AT_SOCKET_EVT_RECV])
{
at_evt_cb_set[AT_SOCKET_EVT_RECV](cur_socket, AT_SOCKET_EVT_RECV, recv_buf, bfsz);
}
}
static struct at_urc urc_table[] = {
{"+CIPSEND:", "\r\n", urc_send_func},
{"+CIPOPEN:", "\r\n", urc_connect_func},
{"+CPING:", "\r\n", urc_ping_func},
{"+IPCLOSE", "\r\n", urc_close_func},
{"+IPD", "\r\n", urc_recv_func},
};
#define AT_SEND_CMD(resp, cmd) \
do \
{ \
if (at_exec_cmd(at_resp_set_info(resp, 256, 0, rt_tick_from_millisecond(5000)), cmd) < 0) \
{ \
LOG_E("RT AT send commands(%s) error!", cmd); \
result = -RT_ERROR; \
goto __exit; \
} \
} while(0); \
/**
* power up sim76xx modem
*/
static void sim76xx_power_on(void)
{
rt_pin_write(AT_DEVICE_POWER_PIN, PIN_HIGH);
rt_thread_delay(rt_tick_from_millisecond(300));
rt_pin_write(AT_DEVICE_POWER_PIN, PIN_LOW);
while (rt_pin_read(AT_DEVICE_STATUS_PIN) == PIN_LOW)
{
rt_thread_delay(rt_tick_from_millisecond(10));
}
}
static void sim76xx_power_off(void)
{
rt_pin_write(AT_DEVICE_POWER_PIN, PIN_HIGH);
rt_thread_delay(rt_tick_from_millisecond(3000));
rt_pin_write(AT_DEVICE_POWER_PIN, PIN_LOW);
while (rt_pin_read(AT_DEVICE_STATUS_PIN) == PIN_HIGH)
{
rt_thread_delay(rt_tick_from_millisecond(10));
}
rt_pin_write(AT_DEVICE_POWER_PIN, PIN_LOW);
}
static void sim76xx_init_thread_entry(void *parameter)
{
#define CSQ_RETRY 20
#define CREG_RETRY 10
#define CGREG_RETRY 20
#define CGATT_RETRY 10
#define CCLK_RETRY 10
at_response_t resp = RT_NULL;
rt_err_t result = RT_EOK;
rt_size_t i, qi_arg[3];
char parsed_data[20];
resp = at_create_resp(128, 0, rt_tick_from_millisecond(300));
if (!resp)
{
LOG_E("No memory for response structure!");
result = -RT_ENOMEM;
goto __exit;
}
/* power-up sim76xx */
sim76xx_power_on();
LOG_D("Start initializing the SIM76XXE module");
/* wait SIM76XX startup finish, Send AT every 5s, if receive OK, SYNC success*/
if (at_client_wait_connect(SIM76XX_WAIT_CONNECT_TIME))
{
result = -RT_ETIMEOUT;
goto __exit;
}
/* disable echo */
AT_SEND_CMD(resp, "ATE0");
/* get module version */
AT_SEND_CMD(resp, "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 */
AT_SEND_CMD(resp, "AT+CPIN?");
if (!at_resp_get_line_by_kw(resp, "READY"))
{
LOG_E("SIM card detection failed");
result = -RT_ERROR;
goto __exit;
}
/* waiting for dirty data to be digested */
rt_thread_delay(rt_tick_from_millisecond(10));
/* check signal strength */
for (i = 0; i < CSQ_RETRY; i++)
{
AT_SEND_CMD(resp, "AT+CSQ");
at_resp_parse_line_args_by_kw(resp, "+CSQ:", "+CSQ: %d,%d", &qi_arg[0], &qi_arg[1]);
if (qi_arg[0] != 99)
{
LOG_D("Signal strength: %d Channel bit error rate: %d", qi_arg[0], qi_arg[1]);
break;
}
rt_thread_delay(rt_tick_from_millisecond(1000));
}
if (i == CSQ_RETRY)
{
LOG_E("Signal strength check failed (%s)", parsed_data);
result = -RT_ERROR;
goto __exit;
}
//do not show the prompt when receiving data
AT_SEND_CMD(resp, "AT+CIPSRIP=0");
/* check the GSM network is registered */
for (i = 0; i < CREG_RETRY; i++)
{
AT_SEND_CMD(resp,"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("GSM network is registered (%s)", parsed_data);
break;
}
rt_thread_delay(rt_tick_from_millisecond(1000));
}
if (i == CREG_RETRY)
{
LOG_E("The GSM network is register failed (%s)", parsed_data);
result = -RT_ERROR;
goto __exit;
}
/* check the GPRS network is registered */
for (i = 0; i < CGREG_RETRY; i++)
{
AT_SEND_CMD(resp,"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("GPRS network is registered (%s)", parsed_data);
break;
}
rt_thread_delay(rt_tick_from_millisecond(1000));
}
if (i == CGREG_RETRY)
{
LOG_E("The GPRS network is register failed (%s)", parsed_data);
result = -RT_ERROR;
goto __exit;
}
/* check packet domain attach or detach */
for (i = 0;i < CGATT_RETRY; i++)
{
AT_SEND_CMD(resp,"AT+CGATT?")
at_resp_parse_line_args_by_kw(resp,"+CGATT:","+CGATT: %s",&parsed_data);
if (!strncmp(parsed_data,"1",1))
{
LOG_I("Packet domain attach");
break;
}
rt_thread_delay(rt_tick_from_millisecond(1000));
}
if (i == CGATT_RETRY)
{
LOG_E("The GPRS network attach failed");
result = -RT_ERROR;
goto __exit;
}
/* get real time */
int year,month,day,hour,min,sec;
for (i = 0;i < CCLK_RETRY;i++)
{
if (at_exec_cmd(at_resp_set_info(resp, 256, 0, rt_tick_from_millisecond(5000)), "AT+CCLK?") < 0)
{
rt_thread_delay(rt_tick_from_millisecond(500));
continue;
}
//+CCLK: "18/12/22,18:33:12+32"
if (at_resp_parse_line_args_by_kw(resp,"+CCLK:","+CCLK: \"%d/%d/%d,%d:%d:%d",&year,&month,&day,&hour,&min,&sec) < 0)
{
rt_thread_delay(rt_tick_from_millisecond(500));
continue;
}
set_date(year + 2000,month,day);
set_time(hour,min,sec);
break;
}
if (i == CCLK_RETRY)
{
LOG_E("The GPRS network attach failed");
result = -RT_ERROR;
goto __exit;
}
/* set active PDP context's profile number */
AT_SEND_CMD(resp, "AT+CSOCKSETPN=1");
__exit:
if (resp)
{
at_delete_resp(resp);
}
if (!result)
{
LOG_I("AT network initialize success!");
at_socket_init = 1;
}
else
{
LOG_E("AT network initialize failed (%d)!", result);
}
}
int sim76xx_net_init(void)
{
#ifdef PKG_AT_INIT_BY_THREAD
rt_thread_t tid;
tid = rt_thread_create("sim76xx_net_init", sim76xx_init_thread_entry, RT_NULL,SIM76XX_THREAD_STACK_SIZE, SIM76XX_THREAD_PRIORITY, 20);
if (tid)
{
rt_thread_startup(tid);
}
else
{
LOG_E("Create AT initialization thread fail!");
}
#else
sim76xx_init_thread_entry(RT_NULL);
#endif
return RT_EOK;
}
int sim76xx_ping(int argc, char **argv)
{
at_response_t resp = RT_NULL;
if (argc != 2)
{
rt_kprintf("Please input: at_ping <host address>\n");
return -RT_ERROR;
}
resp = at_create_resp(64, 0, rt_tick_from_millisecond(5000));
if (!resp)
{
rt_kprintf("No memory for response structure!\n");
return -RT_ENOMEM;
}
if (at_exec_cmd(resp, "AT+CPING=\"%s\",1,4,64,1000,10000,255", argv[1]) < 0)
{
if (resp)
{
at_delete_resp(resp);
}
rt_kprintf("AT send ping commands error!\n");
return -RT_ERROR;
}
if (resp)
{
at_delete_resp(resp);
}
return RT_EOK;
}
int sim76xx_connect(int argc, char **argv)
{
int32_t port;
if (argc != 3)
{
rt_kprintf("Please input: at_connect <host address>\n");
return -RT_ERROR;
}
sscanf(argv[2],"%d",&port);
sim76xx_socket_connect(0, argv[1], port, AT_SOCKET_TCP, 1);
return RT_EOK;
}
int sim76xx_close(int argc, char **argv)
{
if (sim76xx_socket_close(0) < 0)
{
rt_kprintf("sim76xx_socket_close fail\n");
}
else
{
rt_kprintf("sim76xx_socket_closeed\n");
}
return RT_EOK;
}
int sim76xx_send(int argc, char **argv)
{
const char *buff = "1234567890\n";
if (sim76xx_socket_send(0, buff, 11, AT_SOCKET_TCP) < 0)
{
rt_kprintf("sim76xx_socket_send fail\n");
}
return RT_EOK;
}
int sim76xx_domain(int argc, char **argv)
{
char ip[16];
if (sim76xx_domain_resolve("www.baidu.com", ip) < 0)
{
rt_kprintf("sim76xx_socket_send fail\n");
}
else
{
rt_kprintf("baidu.com : %s\n", ip);
}
return RT_EOK;
}
int sim76xx_ifconfig(void)
{
at_response_t resp = RT_NULL;
char resp_arg[AT_CMD_MAX_LEN] = { 0 };
rt_err_t result = RT_EOK;
resp = at_create_resp(128, 2, rt_tick_from_millisecond(300));
if (!resp)
{
rt_kprintf("No memory for response structure!\n");
return -RT_ENOMEM;
}
/* Show PDP address */
AT_SEND_CMD(resp, "AT+CGPADDR");
at_resp_parse_line_args_by_kw(resp, "+CGPADDR:", "+CGPADDR: %s", &resp_arg);
rt_kprintf("IP adress : %s\n", resp_arg);
__exit:
if (resp)
{
at_delete_resp(resp);
}
return result;
}
#ifdef FINSH_USING_MSH
#include <finsh.h>
MSH_CMD_EXPORT_ALIAS(sim76xx_net_init, at_net_init, initialize AT network);
MSH_CMD_EXPORT_ALIAS(sim76xx_ping, at_ping, AT ping network host);
MSH_CMD_EXPORT_ALIAS(sim76xx_ifconfig, at_ifconfig, list the information of network interfaces);
MSH_CMD_EXPORT_ALIAS(sim76xx_connect, at_connect, AT connect network host);
MSH_CMD_EXPORT_ALIAS(sim76xx_close, at_close, AT close a socket);
MSH_CMD_EXPORT_ALIAS(sim76xx_send, at_send, AT send a pack);
MSH_CMD_EXPORT_ALIAS(sim76xx_domain, at_domain, AT domain resolve);
#endif
static const struct at_device_ops sim76xx_socket_ops = {
sim76xx_socket_connect,
sim76xx_socket_close,
sim76xx_socket_send,
sim76xx_domain_resolve,
sim76xx_socket_set_event_cb,
};
static int sim76xx_netdev_add(const char *netdev_name)
{
#define ETHERNET_MTU 1500
#define HWADDR_LEN 8
struct netdev *netdev = RT_NULL;
int result = 0;
RT_ASSERT(netdev_name);
netdev = (struct netdev *) rt_calloc(1, sizeof(struct netdev));
if (netdev == RT_NULL)
{
return RT_NULL;
}
netdev->mtu = ETHERNET_MTU;
netdev->hwaddr_len = HWADDR_LEN;
netdev->ops = RT_NULL;
#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
result = netdev_register(netdev, netdev_name, RT_NULL);
/*TODO: improve netdev adaptation */
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);
netdev->flags |= NETDEV_FLAG_INTERNET_UP;
return result;
}
static int at_socket_device_init(void)
{
/* create current AT socket event */
at_socket_event = rt_event_create("at_se", RT_IPC_FLAG_FIFO);
if (at_socket_event == RT_NULL)
{
LOG_E("RT AT client port initialize failed! at_sock_event create failed!");
return -RT_ENOMEM;
}
/* create current AT socket event lock */
at_event_lock = rt_mutex_create("at_se", RT_IPC_FLAG_FIFO);
if (at_event_lock == RT_NULL)
{
LOG_E("RT AT client port initialize failed! at_sock_lock create failed!");
rt_event_delete(at_socket_event);
return -RT_ENOMEM;
}
/* initialize AT client */
at_client_init(AT_DEVICE_NAME, AT_DEVICE_RECV_BUFF_LEN);
/* register URC data execution function */
at_set_urc_table(urc_table, sizeof(urc_table) / sizeof(urc_table[0]));
/* add network interface device to netdev list */
if (sim76xx_netdev_add(SIM76XX_NETDEV_NAME) < 0)
{
LOG_E("SIM76xx network interface device(%d) add failed.", SIM76XX_NETDEV_NAME);
return -RT_ENOMEM;
}
/* initialize sim76xx pin config */
rt_pin_mode(AT_DEVICE_POWER_PIN, PIN_MODE_OUTPUT);
rt_pin_mode(AT_DEVICE_STATUS_PIN, PIN_MODE_INPUT);
/* initialize sim76xx network */
sim76xx_net_init();
/* set sim76xx AT Socket options */
at_socket_device_register(&sim76xx_socket_ops);
return RT_EOK;
}
INIT_APP_EXPORT(at_socket_device_init);
#endif /* AT_DEVICE_SIM76XX */
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