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at_device/class/sim76xx/at_device_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
* 2019-05-14 chenyong multi AT socket client support
* 2019-08-24 chenyong add netdev support
*/
#include <stdio.h>
#include <string.h>
#include <at_device_sim76xx.h>
#define LOG_TAG "at.dev"
#include <at_log.h>
#ifdef AT_DEVICE_USING_SIM76XX
#define SIM76XX_WAIT_CONNECT_TIME 5000
#define SIM76XX_THREAD_STACK_SIZE 1024
#define SIM76XX_THREAD_PRIORITY (RT_THREAD_PRIORITY_MAX / 2)
/* power up sim76xx modem */
static void sim76xx_power_on(struct at_device *device)
{
struct at_device_sim76xx *sim76xx = RT_NULL;
sim76xx = (struct at_device_sim76xx *) device->user_data;
/* not nead to set pin configuration for m26 device power on */
if (sim76xx->power_pin == -1 || sim76xx->power_status_pin == -1)
{
return;
}
if (rt_pin_read(sim76xx->power_status_pin) == PIN_HIGH)
{
return;
}
rt_pin_write(sim76xx->power_pin, PIN_HIGH);
while (rt_pin_read(sim76xx->power_status_pin) == PIN_LOW)
{
rt_thread_mdelay(10);
}
rt_pin_write(sim76xx->power_pin, PIN_LOW);
}
/* power off sim76xx modem */
static void sim76xx_power_off(struct at_device *device)
{
struct at_device_sim76xx *sim76xx = RT_NULL;
sim76xx = (struct at_device_sim76xx *) device->user_data;
/* not nead to set pin configuration for m26 device power on */
if (sim76xx->power_pin == -1 || sim76xx->power_status_pin == -1)
{
return;
}
if (rt_pin_read(sim76xx->power_status_pin) == PIN_LOW)
{
return;
}
rt_pin_write(sim76xx->power_pin, PIN_HIGH);
while (rt_pin_read(sim76xx->power_status_pin) == PIN_HIGH)
{
rt_thread_mdelay(10);
}
rt_pin_write(sim76xx->power_pin, PIN_LOW);
}
/* ============================= sim76xx network interface operations ============================= */
/* set sim76xx network interface device status and address information */
static int sim76xx_netdev_set_info(struct netdev *netdev)
{
#define SIM76XX_IEMI_RESP_SIZE 256
#define SIM76XX_IPADDR_RESP_SIZE 64
#define SIM76XX_DNS_RESP_SIZE 96
#define SIM76XX_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 sim76xx 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(SIM76XX_IEMI_RESP_SIZE, 0, SIM76XX_INFO_RESP_TIMO);
if (resp == RT_NULL)
{
LOG_E("sim76xx 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 SIM76XX_NETDEV_HWADDR_LEN 8
#define SIM76XX_IEMI_LEN 15
char iemi[SIM76XX_IEMI_LEN] = {0};
int i = 0, j = 0;
/* send "ATI" commond to get device IEMI */
if (at_obj_exec_cmd(device->client, resp, "ATI") < 0)
{
result = -RT_ERROR;
goto __exit;
}
if (at_resp_parse_line_args_by_kw(resp, "IMEI:", "IMEI: %s", iemi) <= 0)
{
LOG_E("sim76xx device(%s) prase \"ATI\" commands resposne data error.", device->name);
result = -RT_ERROR;
goto __exit;
}
LOG_D("sim76xx device(%s) IEMI number: %s", device->name, iemi);
netdev->hwaddr_len = SIM76XX_NETDEV_HWADDR_LEN;
/* get hardware address by IEMI */
for (i = 0, j = 0; i < SIM76XX_NETDEV_HWADDR_LEN && j < SIM76XX_IEMI_LEN; i++, j += 2)
{
if (j != SIM76XX_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, SIM76XX_IPADDR_RESP_SIZE, 2, SIM76XX_INFO_RESP_TIMO);
/* send "AT+IPADDR" commond to get IP address */
if (at_obj_exec_cmd(device->client, resp, "AT+IPADDR") < 0)
{
result = -RT_ERROR;
goto __exit;
}
if (at_resp_parse_line_args_by_kw(resp, "+IPADDR:", "+IPADDR: %s", ipaddr) <= 0)
{
LOG_E("sim76xx device(%s) prase \"AT+IPADDR\" commands resposne data error!", device->name);
result = -RT_ERROR;
goto __exit;
}
LOG_D("sim76xx 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 DEF_DNS_ADDR "114.114.114.114"
const char *dns_server = DEF_DNS_ADDR;
ip_addr_t addr;
/* not support get dns server address, using default dns server address */
inet_aton(dns_server, &addr);
netdev_low_level_set_dns_server(netdev, 0, &addr);
}
__exit:
if (resp)
{
at_delete_resp(resp);
}
return result;
}
/* check sim76xx device link_up status */
static void check_link_status_entry(void *parameter)
{
#define SIM76XX_LINK_STATUS_OK 1
#define SIM76XX_LINK_RESP_SIZE 64
#define SIM76XX_LINK_RESP_TIMO (3 * RT_TICK_PER_SECOND)
#define SIM76XX_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 sim76xx device by netdev name(%s) failed.", netdev->name);
return;
}
resp = at_create_resp(SIM76XX_LINK_RESP_SIZE, 0, SIM76XX_LINK_RESP_TIMO);
if (resp == RT_NULL)
{
LOG_E("sim76xx 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(SIM76XX_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 ((SIM76XX_LINK_STATUS_OK == link_status) != netdev_is_link_up(netdev))
{
netdev_low_level_set_link_status(netdev, (SIM76XX_LINK_STATUS_OK == link_status));
}
rt_thread_mdelay(SIM76XX_LINK_DELAY_TIME);
}
}
static int sim76xx_netdev_check_link_status(struct netdev *netdev)
{
#define SIM76XX_LINK_THREAD_TICK 20
#define SIM76XX_LINK_THREAD_STACK_SIZE (1024 + 512)
#define SIM76XX_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,
SIM76XX_LINK_THREAD_STACK_SIZE, SIM76XX_LINK_THREAD_PRIORITY, SIM76XX_LINK_THREAD_TICK);
if (tid)
{
rt_thread_startup(tid);
}
return RT_EOK;
}
static int sim76xx_net_init(struct at_device *device);
/* sim76xx network interface device set up status */
static int sim76xx_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 sim76xx device by netdev name(%s) failed.", netdev->name);
return -RT_ERROR;
}
if (device->is_init == RT_FALSE)
{
sim76xx_net_init(device);
device->is_init = RT_TRUE;
netdev_low_level_set_status(netdev, RT_TRUE);
LOG_D("the network intterface device(%s) set up status.", netdev->name);
}
return RT_EOK;
}
/* sim76xx network interface device set down status */
static int sim76xx_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 sim76xx device by netdev name(%s) failed.", netdev->name);
return -RT_ERROR;
}
if (device->is_init == RT_TRUE)
{
sim76xx_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;
}
#ifdef NETDEV_USING_PING
/* sim76xx network interface device ping feature */
static int sim76xx_netdev_ping(struct netdev *netdev, const char *host,
size_t data_len, uint32_t timeout, struct netdev_ping_resp *ping_resp)
{
#define SIM76XX_PING_RESP_SIZE 128
#define SIM76XX_PING_IP_SIZE 16
#define SIM76XX_PING_TIMEO (12 * RT_TICK_PER_SECOND)
int result = RT_EOK;
int response, pkg_size, time, ttl;
char ip_addr[SIM76XX_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 sim76xx device by netdev name(%s) failed.", netdev->name);
return -RT_ERROR;
}
resp = at_create_resp(SIM76XX_PING_RESP_SIZE, 6, SIM76XX_PING_TIMEO);
if (resp == RT_NULL)
{
LOG_E("sim76xx device(%s) set dns server failed, no memory for response object.", device->name);
result = -RT_ERROR;
goto __exit;
}
/* send "AT+CIPPING=<dest_addr>,<dest_addr_type>[,<num_pings>[,<package_size>[,<interval_time>[,<wait_timer>[,<TTL>]]]]]"
commond to send ping request */
if (at_obj_exec_cmd(device->client, resp, "AT+CPING=\"%s\",1,1,%d,,,64", host, data_len) < 0)
{
result = -RT_ERROR;
goto __exit;
}
if (at_resp_parse_line_args_by_kw(resp, "+CPING:", "+CPING:%d,%[^,],%d,%d,%d",
&response, ip_addr, &pkg_size, &time, &ttl) <= 0)
{
result = -RT_ERROR;
goto __exit;
}
/* 2 - ping timeout */
if (response == 2)
{
result = -RT_ETIMEOUT;
goto __exit;
}
inet_aton(ip_addr, &(ping_resp->ip_addr));
ping_resp->data_len = pkg_size;
/* reply time, in units of ms */
ping_resp->ticks = rt_tick_from_millisecond(time);
ping_resp->ttl = ttl;
__exit:
if (resp)
{
at_delete_resp(resp);
}
return result;
}
#endif /* NETDEV_USING_PING */
/* sim76xx network interface device operations */
const struct netdev_ops sim76xx_netdev_ops =
{
sim76xx_netdev_set_up,
sim76xx_netdev_set_down,
RT_NULL, /* not support set ip, netmask, gatway address */
RT_NULL, /* not support set DNS server address */
RT_NULL, /* not support set DHCP status */
#ifdef NETDEV_USING_PING
sim76xx_netdev_ping,
#endif
RT_NULL, /* not support netstat feature */
};
/* register sim76xx network interface */
static struct netdev *sim76xx_netdev_add(const char *netdev_name)
{
#define ETHERNET_MTU 1500
#define HWADDR_LEN 8
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 sim76xx device(%s) netdev structure.", netdev_name);
return RT_NULL;
}
netdev->mtu = ETHERNET_MTU;
netdev->hwaddr_len = HWADDR_LEN;
netdev->ops = &sim76xx_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, cmd) \
do { \
(resp) = at_resp_set_info((resp), 256, 0, 5 * RT_TICK_PER_SECOND); \
if (at_obj_exec_cmd((client), (resp), (cmd)) < 0) \
{ \
result = -RT_ERROR; \
goto __exit; \
} \
} while(0) \
/* initialize the sim76xx device network connection by command */
static void sim76xx_init_thread_entry(void *parameter)
{
#define INIT_RETRY 5
#define CPIN_RETRY 5
#define CSQ_RETRY 10
#define CREG_RETRY 10
#define CGREG_RETRY 10
#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] = {0};
int retry_num = INIT_RETRY;
char parsed_data[20] = {0};
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 sim76xx device(%s) response structure.", device->name);
return;
}
LOG_D("start initializing the sim76xx device(%s).", device->name);
while (retry_num--)
{
/* power-up sim76xx */
sim76xx_power_on(device);
/* 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(client, resp, "ATE0");
/* get module version */
AT_SEND_CMD(client, 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 */
rt_thread_mdelay(1000);
for (i = 0; i < CPIN_RETRY; i++)
{
at_obj_exec_cmd(client, resp, "AT+CPIN?");
if (at_resp_get_line_by_kw(resp, "READY"))
{
LOG_D("sim76xx device(%s) SIM card detection failed.", device->name);
break;
}
LOG_I("\"AT+CPIN\" commands send retry...");
rt_thread_mdelay(1000);
}
if (i == CPIN_RETRY)
{
result = -RT_ERROR;
goto __exit;
}
/* waiting for dirty data to be digested */
rt_thread_mdelay(10);
/* check signal strength */
for (i = 0; i < CSQ_RETRY; i++)
{
AT_SEND_CMD(client, 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("sim76xx device(%s) signal strength: %d Channel bit error rate: %d", device->name, qi_arg[0], qi_arg[1]);
break;
}
rt_thread_mdelay(1000);
}
if (i == CSQ_RETRY)
{
LOG_E("sim76xx device(%s) signal strength check failed (%s).", device->name, parsed_data);
result = -RT_ERROR;
goto __exit;
}
/* do not show the prompt when receiving data */
AT_SEND_CMD(client, resp, "AT+CIPSRIP=0");
/* check the GSM network is registered */
for (i = 0; i < CREG_RETRY; i++)
{
AT_SEND_CMD(client, 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("sim76xx device(%s) GSM network is registered(%s).", device->name, parsed_data);
break;
}
rt_thread_mdelay(1000);
}
if (i == CREG_RETRY)
{
LOG_E("sim76xx 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, "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("sim76xx device(%s) GPRS network is registered(%s).", device->name, parsed_data);
break;
}
rt_thread_mdelay(1000);
}
if (i == CGREG_RETRY)
{
LOG_E("sim76xx device(%s) GPRS network is register failed(%s).", device->name, parsed_data);
result = -RT_ERROR;
goto __exit;
}
/* check packet domain attach or detach */
for (i = 0; i < CGATT_RETRY; i++)
{
AT_SEND_CMD(client, resp, "AT+CGATT?");
at_resp_parse_line_args_by_kw(resp, "+CGATT:", "+CGATT: %s", &parsed_data);
if (!strncmp(parsed_data, "1", 1))
{
LOG_D("sim76xx device(%s) Packet domain attach.", device->name);
break;
}
rt_thread_mdelay(1000);
}
if (i == CGATT_RETRY)
{
LOG_E("sim76xx device(%s) GPRS network attach failed.", device->name);
result = -RT_ERROR;
goto __exit;
}
/* configure context */
AT_SEND_CMD(client, resp, "AT+CGDCONT=1,\"IP\",\"CMNET\"");
/* activate context */
{
int net_status = 0;
AT_SEND_CMD(client, resp, "AT+NETOPEN?");
at_resp_parse_line_args_by_kw(resp, "+NETOPEN:", "+NETOPEN: %d", &net_status);
/* 0 - netwoek close, 1 - network open */
if (net_status == 0)
{
AT_SEND_CMD(client, resp, "AT+NETOPEN");
}
}
/* set active PDP context's profile number */
AT_SEND_CMD(client, resp, "AT+CSOCKSETPN=1");
#ifdef RT_USING_RTC
/* get real time */
int year, month, day, hour, min, sec;
for (i = 0; i < CCLK_RETRY; i++)
{
if (at_obj_exec_cmd(device->client, at_resp_set_info(resp, 256, 0, 5 * RT_TICK_PER_SECOND), "AT+CCLK?") < 0)
{
rt_thread_mdelay(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_mdelay(500);
continue;
}
set_date(year + 2000, month, day);
set_time(hour, min, sec);
break;
}
if (i == CCLK_RETRY)
{
LOG_E("sim76xx device(%s) GPRS network attach failed.", device->name);
result = -RT_ERROR;
goto __exit;
}
#endif /* RT_USING_RTC */
/* initialize successfully */
result = RT_EOK;
break;
__exit:
if (result != RT_EOK)
{
/* power off the sim76xx device */
sim76xx_power_off(device);
rt_thread_mdelay(1000);
LOG_I("sim76xx device(%s) initialize retry...", device->name);
}
}
if (resp)
{
at_delete_resp(resp);
}
if (result == RT_EOK)
{
/* set network interface device status and address information */
sim76xx_netdev_set_info(device->netdev);
sim76xx_netdev_check_link_status(device->netdev);
LOG_I("sim76xx devuce(%s) network initialize success!", device->name);
}
else
{
LOG_E("sim76xx device(%s) network initialize failed(%d)!", device->name, result);
}
}
int sim76xx_net_init(struct at_device *device)
{
#ifdef AT_DEVICE_SIM76XX_INIT_ASYN
rt_thread_t tid;
tid = rt_thread_create("sim76xx_net_init", sim76xx_init_thread_entry, (void *)device,
SIM76XX_THREAD_STACK_SIZE, SIM76XX_THREAD_PRIORITY, 20);
if (tid)
{
rt_thread_startup(tid);
}
else
{
LOG_E("create sim76xx device(%s) initialization thread failed.", device->name);
return -RT_ERROR;
}
#else
sim76xx_init_thread_entry(device);
#endif /* AT_DEVICE_SIM76XX_INIT_ASYN */
return RT_EOK;
}
#ifdef FINSH_USING_MSH
#include <finsh.h>
MSH_CMD_EXPORT_ALIAS(sim76xx_net_init, at_net_init, initialize AT network);
#endif
/* initialize the sim76xx device network connection and register network interface device */
static int sim76xx_init(struct at_device *device)
{
struct at_device_sim76xx *sim76xx = (struct at_device_sim76xx *) device->user_data;
/* initialize AT client */
at_client_init(sim76xx->client_name, sim76xx->recv_line_num);
device->client = at_client_get(sim76xx->client_name);
if (device->client == RT_NULL)
{
LOG_E("sim76xx device(%s) initialize failed, get AT client(%s) failed.", sim76xx->device_name, sim76xx->client_name);
return -RT_ERROR;
}
#ifdef AT_USING_SOCKET
sim76xx_socket_init(device);
#endif
/* add sim76xx device to the netdev list */
device->netdev = sim76xx_netdev_add(sim76xx->device_name);
if (device->netdev == RT_NULL)
{
LOG_E("sim76xx device(%s) initialize failed, get network interface device failed.", sim76xx->device_name);
return -RT_ERROR;
}
/* initialize sim76xx pin configuration */
if (sim76xx->power_pin != -1 && sim76xx->power_status_pin != -1)
{
rt_pin_mode(sim76xx->power_pin, PIN_MODE_OUTPUT);
rt_pin_mode(sim76xx->power_status_pin, PIN_MODE_INPUT);
}
/* initialize sim76xx device network */
return sim76xx_netdev_set_up(device->netdev);
}
/* deinit sim76xx device network connect */
static int sim76xx_deinit(struct at_device *device)
{
return sim76xx_netdev_set_down(device->netdev);
}
/* custom device control operations */
static int sim76xx_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("sim76xx 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 sim76xx_device_ops =
{
sim76xx_init,
sim76xx_deinit,
sim76xx_control,
};
/* register sim76xx class to the global at_device class list */
static int sim76xx_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 sim76xx device class create.");
return -RT_ENOMEM;
}
/* fill sim76xx device class object */
#ifdef AT_USING_SOCKET
sim76xx_socket_class_register(class);
#endif
class->device_ops = &sim76xx_device_ops;
return at_device_class_register(class, AT_DEVICE_CLASS_SIM76XX);
}
INIT_DEVICE_EXPORT(sim76xx_device_class_register);
#endif /* AT_DEVICE_SIM76XX */
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