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at_device/class/bc28/at_device_bc28.c

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/*
* File : at_device_bc28.c
* This file is part of RT-Thread RTOS
* Copyright (c) 2020, RudyLo <luhuadong@163.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2020-02-12 luhuadong first version
*/
#include <stdio.h>
#include <string.h>
#include <at_device_bc28.h>
#define LOG_TAG "at.dev.bc28"
#include <at_log.h>
#ifdef AT_DEVICE_USING_BC28
#define BC28_WAIT_CONNECT_TIME 5000
#define BC28_THREAD_STACK_SIZE 2048
#define BC28_THREAD_PRIORITY (RT_THREAD_PRIORITY_MAX/2)
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(300);
rt_pin_write(bc28->power_pin, PIN_LOW);
bc28->power_status = 1;
return(RT_EOK);
}
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_E("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)
{
LOG_E("no memory for resp create.");
return(-RT_ERROR);
}
result = -RT_ERROR;
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)
{
result = RT_EOK;
}
}
}
at_delete_resp(resp);
return(result);
}
/* ============================= 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(5000)
int result = RT_EOK;
ip_addr_t addr;
at_response_t resp = RT_NULL;
struct at_device *device = RT_NULL;
RT_ASSERT(netdev);
device = at_device_get_by_name(AT_DEVICE_NAMETYPE_NETDEV, netdev->name);
if (device == RT_NULL)
{
LOG_E("get device(%s) failed.", 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(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,<IP_address>" */
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:<pri_dns>"
* "SecondaryDns:<sec_dns>"
*/
if (at_resp_parse_line_args_by_kw(resp, "PrimaryDns:", "PrimaryDns: %s", 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: %s", 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_E("no memory for resp create.");
result = -RT_ENOMEM;
goto __exit;
}
/* send "AT+QIDNSCFG=<pri_dns>[,<sec_dns>]" 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 AT_USING_SOCKET
int bc28_domain_resolve(const char *name, char ip[16]);
#endif
#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 (10 * 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;
}
/* DNS resolve */
struct in_addr inp;
if (inet_aton(host, &inp) > 0)
{
rt_strncpy(ip_addr, host, BC28_PING_IP_SIZE);
}
#ifdef AT_USING_SOCKET
else
{
bc28_domain_resolve(host, ip_addr);
}
#endif
if (at_obj_exec_cmd(device->client, resp, "AT+NPING=%s,%d,%d",
ip_addr, data_len, timeout*1000/RT_TICK_PER_SECOND) < 0)
{
result = -RT_ERROR;
goto __exit;
}
if (at_resp_parse_line_args_by_kw(resp, "+NPINGERR:", "+NPINGERR:%d", &response) > 0)
{
switch (response)
{
case 1:
result = -RT_ETIMEOUT;
break;
case 2:
default:
result = -RT_ERROR;
break;
}
}
else if (at_resp_parse_line_args_by_kw(resp, "+NPING:", "+NPING:%[^,],%d,%d",
ip_addr, &ttl, &ping_time) > 0 )
{
inet_aton(ip_addr, &(ping_resp->ip_addr));
ping_resp->data_len = data_len;
ping_resp->ticks = rt_tick_from_millisecond(ping_time);
ping_resp->ttl = ttl;
result = RT_EOK;
}
else
{
result = -RT_ERROR;
goto __exit;
}
__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;
netdev = (struct netdev *)rt_calloc(1, sizeof(struct netdev));
if (netdev == RT_NULL)
{
LOG_E("no memory for netdev create.");
return RT_NULL;
}
netdev->mtu = ETHERNET_MTU;
netdev->ops = &bc28_netdev_ops;
netdev->hwaddr_len = HWADDR_LEN;
#ifdef SAL_USING_AT
extern int sal_at_netdev_set_pf_info(struct netdev *netdev);
/* set the network interface socket/netdb operations */
sal_at_netdev_set_pf_info(netdev);
#endif
netdev_register(netdev, netdev_name, RT_NULL);
return netdev;
}
/* ============================= bc28 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
#define AT_DEFAULT_TIMEOUT 5000
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(AT_DEFAULT_TIMEOUT));
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;
LOG_E("ATE0");
goto __exit;
}
/* disable auto register */
if (at_obj_exec_cmd(device->client, resp, "AT+QREGSWT=2") != RT_EOK)
{
result = -RT_ERROR;
LOG_E(">> AT+QREGSWT=2");
goto __exit;
}
/* disable auto connect */
if (at_obj_exec_cmd(device->client, resp, "AT+NCONFIG=AUTOCONNECT,FALSE") != RT_EOK)
{
result = -RT_ERROR;
LOG_E(">> AT+NCONFIG=AUTOCONNECT,FALSE");
goto __exit;
}
/* reboot */
at_obj_exec_cmd(device->client, resp, "AT+NRB");
rt_thread_mdelay(5000);
while (at_obj_exec_cmd(device->client, resp, "AT") != RT_EOK)
{
rt_thread_mdelay(1000);
}
/* check IMEI */
if (at_obj_exec_cmd(device->client, resp, "AT+CGSN=1") != RT_EOK)
{
result = -RT_ERROR;
LOG_E(">> AT+CGSN=1");
goto __exit;
}
/* search band 8 */
if (at_obj_exec_cmd(device->client, resp, "AT+NBAND=8") != RT_EOK)
{
result = -RT_ERROR;
LOG_E(">> AT+NBAND=8");
goto __exit;
}
/* set max function */
if (at_obj_exec_cmd(device->client, resp, "AT+CFUN=1") != RT_EOK)
{
result = -RT_ERROR;
LOG_E(">> AT+CFUN=1");
goto __exit;
}
/* auto report recv from tcp */
if (at_obj_exec_cmd(device->client, resp, "AT+NSONMI=2") != RT_EOK)
{
result = -RT_ERROR;
LOG_E(">> AT+NSONMI=2");
goto __exit;
}
/* disable eDRX mode */
if (at_obj_exec_cmd(device->client, resp, "AT+CEDRXS=0,5") != RT_EOK)
{
result = -RT_ERROR;
LOG_E(">> AT+CEDRXS=0,5");
goto __exit;
}
/* disable PSM mode */
if (at_obj_exec_cmd(device->client, resp, "AT+CPSMS=0") != RT_EOK)
{
result = -RT_ERROR;
LOG_E(">> AT+CPSMS=0");
goto __exit;
}
/* check IMSI */
if (at_obj_exec_cmd(device->client, resp, "AT+CIMI") != RT_EOK)
{
result = -RT_ERROR;
LOG_E(">> AT+CIMI");
goto __exit;
}
/* attach */
if (at_obj_exec_cmd(device->client, resp, "AT+CGATT=1") != RT_EOK)
{
result = -RT_ERROR;
LOG_E(">> AT+CGATT=1");
goto __exit;
}
/* Get the baudrate */
if (at_obj_exec_cmd(device->client, resp, "AT+NATSPEED?") != RT_EOK)
{
result = -RT_ERROR;
LOG_E(">> AT+NATSPEED?");
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;
LOG_E(">> ATI");
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,<IP_address>" */
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)
{
struct at_device_bc28 *bc28 = (struct at_device_bc28 *)device->user_data;
/* initialize AT client */
at_client_init(bc28->client_name, bc28->recv_bufsz);
device->client = at_client_get(bc28->client_name);
if (device->client == RT_NULL)
{
LOG_E("get AT client(%s) failed.", bc28->client_name);
return -RT_ERROR;
}
/* register URC data execution function */
#ifdef AT_USING_SOCKET
bc28_socket_init(device);
#endif
/* add bc28 device to the netdev list */
device->netdev = bc28_netdev_add(bc28->device_name);
if (device->netdev == RT_NULL)
{
LOG_E("add netdev(%s) failed.", bc28->device_name);
return -RT_ERROR;
}
/* initialize bc28 pin configuration */
if (bc28->power_pin != -1)
{
rt_pin_mode(bc28->power_pin, PIN_MODE_OUTPUT);
rt_pin_write(bc28->power_pin, PIN_LOW);
}
/* initialize bc28 device network */
return bc28_netdev_set_up(device->netdev);
}
static int bc28_deinit(struct at_device *device)
{
RT_ASSERT(device);
return bc28_netdev_set_down(device->netdev);
}
static int bc28_control(struct at_device *device, int cmd, void *arg)
{
int result = -RT_ERROR;
RT_ASSERT(device);
switch (cmd)
{
case AT_DEVICE_CTRL_RESET:
result = bc28_reset(device);
break;
case AT_DEVICE_CTRL_SLEEP:
case AT_DEVICE_CTRL_WAKEUP:
case AT_DEVICE_CTRL_POWER_ON:
case AT_DEVICE_CTRL_POWER_OFF:
case AT_DEVICE_CTRL_LOW_POWER:
case AT_DEVICE_CTRL_NET_CONN:
case AT_DEVICE_CTRL_NET_DISCONN:
case AT_DEVICE_CTRL_SET_WIFI_INFO:
case AT_DEVICE_CTRL_GET_SIGNAL:
case AT_DEVICE_CTRL_GET_GPS:
case AT_DEVICE_CTRL_GET_VER:
LOG_W("not support the control command(%d).", cmd);
break;
default:
LOG_E("input error control command(%d).", cmd);
break;
}
return result;
}
const struct at_device_ops bc28_device_ops =
{
bc28_init,
bc28_deinit,
bc28_control,
};
static int bc28_device_class_register(void)
{
struct at_device_class *class = RT_NULL;
class = (struct at_device_class *) rt_calloc(1, sizeof(struct at_device_class));
if (class == RT_NULL)
{
LOG_E("no memory for device class create.");
return -RT_ENOMEM;
}
/* fill bc28 device class object */
#ifdef AT_USING_SOCKET
bc28_socket_class_register(class);
#endif
class->device_ops = &bc28_device_ops;
return at_device_class_register(class, AT_DEVICE_CLASS_BC28);
}
INIT_DEVICE_EXPORT(bc28_device_class_register);
#endif /* AT_DEVICE_USING_BC28 */
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