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alt1250_main.c
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alt1250_main.c
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/****************************************************************************
* apps/lte/alt1250/alt1250_main.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <semaphore.h>
#include <assert.h>
#include <sys/poll.h>
#include "alt1250_dbg.h"
#include "alt1250_daemon.h"
#include "alt1250_devif.h"
#include "alt1250_devevent.h"
#include "alt1250_usockif.h"
#include "alt1250_usockevent.h"
#include "alt1250_container.h"
#include "alt1250_select.h"
#include "alt1250_usrsock_hdlr.h"
#include "alt1250_evt.h"
#include "alt1250_netdev.h"
#include "alt1250_sms.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define SYNC_CMD_PREFIX "-s"
#define ALTFDNO (0)
#define USOCKFDNO (1)
#define SET_POLLIN(fds, fid) { \
(fds).fd = (fid); \
(fds).events = POLLIN; \
}
#define IS_POLLIN(fds) ((fds).revents & POLLIN)
/****************************************************************************
* Private Data
****************************************************************************/
static struct alt1250_s *g_daemon = NULL;
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: notify_to_lapi_caller
****************************************************************************/
static void notify_to_lapi_caller(sem_t *syncsem)
{
/* has -s (sync) option? */
if (syncsem)
{
/* Notify release to lapi waiting for synchronization */
sem_post(syncsem);
}
}
/****************************************************************************
* Name: initialize_daemon
****************************************************************************/
static int initialize_daemon(FAR struct alt1250_s *dev)
{
int ret;
/* Initialize sub-system */
/* Event call back task must be started
* before any device files are opened
*/
ret = alt1250_evttask_start();
ASSERT(ret > 0);
dev->usockfd = init_usock_device();
ASSERT(dev->usockfd >= 0);
dev->altfd = init_alt1250_device();
ASSERT(dev->altfd >= 0);
ret = altdevice_seteventbuff(dev->altfd, init_event_buffer());
ASSERT(ret >= 0);
init_containers();
init_selectcontainer(dev);
alt1250_sms_initcontainer(dev);
alt1250_netdev_register(dev);
return OK;
}
/****************************************************************************
* Name: finalize_daemon
****************************************************************************/
static void finalize_daemon(FAR struct alt1250_s *dev)
{
alt1250_netdev_unregister(dev);
alt1250_evtdatadestroy();
finalize_alt1250_device(dev->altfd);
finalize_usock_device(dev->usockfd);
alt1250_evttask_stop(dev);
}
/****************************************************************************
* Name: alt1250_loop
****************************************************************************/
static int alt1250_loop(FAR struct alt1250_s *dev)
{
int ret;
int pw_stat;
struct pollfd fds[2];
nfds_t nfds;
bool is_running = true;
initialize_daemon(dev);
/* Get modem power status. If modem is turned on, it means resuming from
* hibernation mode.
*/
pw_stat = altdevice_powercontrol(dev->altfd, LTE_CMDID_GET_POWER_STAT);
dbg_alt1250("Modem power status = %d\n", pw_stat);
if (pw_stat)
{
dev->is_resuming = true;
}
else
{
dev->is_resuming = false;
}
notify_to_lapi_caller(dev->syncsem);
/* Main loop of this daemon */
while (is_running)
{
memset(fds, 0, sizeof(fds));
SET_POLLIN(fds[ALTFDNO], dev->altfd);
nfds = 1;
/* if (!dev->is_usockrcvd && !dev->recvfrom_processing) */
if (ACCEPT_USOCK_REQUEST(dev))
{
SET_POLLIN(fds[USOCKFDNO], dev->usockfd);
nfds++;
}
ret = poll(fds, nfds, -1);
ASSERT(ret > 0);
ret = OK;
if (IS_POLLIN(fds[ALTFDNO]))
{
ret = perform_alt1250events(dev);
}
dbg_alt1250("ret: %u, recvfrom_processing: %d,"
" IS_POLLIN: %d, is_usockrcvd: %d\n",
ret, dev->recvfrom_processing,
IS_POLLIN(fds[USOCKFDNO]), dev->is_usockrcvd);
if ((ret != REP_MODEM_RESET) && (!dev->recvfrom_processing)
&& (IS_POLLIN(fds[USOCKFDNO]) || dev->is_usockrcvd))
{
switch (perform_usockrequest(dev))
{
case REP_SEND_TERM:
is_running = false;
break;
case REP_NO_CONTAINER:
/* Do nothing because request could
* not send to modem driver because of
* no more container. To wait for empty container.
*/
break;
default:
dev->is_usockrcvd = false;
break;
}
}
}
finalize_daemon(dev);
return OK;
}
#ifdef CONFIG_LTE_ALT1250_ENABLE_HIBERNATION_MODE
/****************************************************************************
* Name: calc_checksum
****************************************************************************/
static uint16_t calc_checksum(FAR uint8_t *ptr, uint16_t len)
{
uint32_t ret = 0x00;
uint32_t calctmp = 0x00;
uint16_t i;
/* Data accumulating */
for (i = 0; i < len; i++)
{
calctmp += ptr[i];
}
ret = ~((calctmp & 0xffff) + (calctmp >> 16));
return (uint16_t)ret;
}
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
int main(int argc, FAR char *argv[])
{
int ret;
FAR char *endptr;
sem_t *syncsem = NULL;
if (argc > 1)
{
/* The format is "-sXXXXXXXX".
* XXXXXXXXX indicates the pointer address to the semaphore
* that will be posted at the timing when the daemon opens the
* usersock device.
*/
if (!(strncmp(argv[1], SYNC_CMD_PREFIX, strlen(SYNC_CMD_PREFIX))))
{
syncsem = (FAR sem_t *)strtol(&argv[1][strlen(SYNC_CMD_PREFIX)],
&endptr, 16);
if (!syncsem || endptr == &argv[1][strlen(SYNC_CMD_PREFIX)] ||
*endptr != '\0')
{
return -EINVAL;
}
}
}
if (g_daemon)
{
fprintf(stderr, "%s is already running! \n", argv[0]);
notify_to_lapi_caller(syncsem);
return -1;
}
g_daemon = calloc(sizeof(struct alt1250_s), 1);
ASSERT(g_daemon);
g_daemon->syncsem = syncsem;
g_daemon->evtq = (mqd_t)-1;
g_daemon->sid = -1;
g_daemon->is_usockrcvd = false;
g_daemon->usock_enable = TRUE;
g_daemon->is_support_lwm2m = false;
g_daemon->lwm2m_apply_xid = -1;
g_daemon->api_enable = true;
g_daemon->context_cb = NULL;
MODEM_STATE_POFF(g_daemon);
reset_fwupdate_info(g_daemon);
ret = alt1250_loop(g_daemon);
free(g_daemon);
g_daemon = NULL;
/* Notify lapi that Daemon has finished */
notify_to_lapi_caller(syncsem);
return ret;
}
#ifdef CONFIG_LTE_ALT1250_ENABLE_HIBERNATION_MODE
int alt1250_set_api_enable(FAR struct alt1250_s *dev, bool enable)
{
if (!dev)
{
return ERROR;
}
dev->api_enable = enable;
return OK;
}
int alt1250_count_opened_sockets(FAR struct alt1250_s *dev)
{
int ret = 0;
int i = 0;
FAR struct usock_s *sock;
if (!dev)
{
return ERROR;
}
for (i = 0; i < ARRAY_SZ(dev->sockets); i++)
{
sock = &dev->sockets[i];
if (sock->state != SOCKET_STATE_CLOSED)
{
ret++;
}
}
return ret;
}
int alt1250_is_api_in_progress(FAR struct alt1250_s *dev)
{
if (!dev)
{
return ERROR;
}
return dev->is_usockrcvd ? 1 : 0;
}
int alt1250_set_context_save_cb(FAR struct alt1250_s *dev,
context_save_cb_t context_cb)
{
if (!dev)
{
return ERROR;
}
dev->context_cb = context_cb;
return OK;
}
int alt1250_collect_daemon_context(FAR struct alt1250_s *dev)
{
struct alt1250_save_ctx ctx;
if (!dev)
{
return ERROR;
}
if (!dev->context_cb)
{
return ERROR;
}
memset(&ctx, 0, sizeof(struct alt1250_save_ctx));
/* Copy APN settings */
ctx.ip_type = dev->apn.ip_type;
ctx.auth_type = dev->apn.auth_type;
ctx.apn_type = dev->apn.apn_type;
memcpy(ctx.apn_name, dev->apn_name, LTE_APN_LEN);
memcpy(ctx.user_name, dev->user_name, LTE_APN_USER_NAME_LEN);
memcpy(ctx.pass, dev->pass, LTE_APN_PASSWD_LEN);
/* Copy connection information */
ctx.d_flags = dev->net_dev.d_flags;
#ifdef CONFIG_NET_IPv4
memcpy(&ctx.d_ipaddr, &dev->net_dev.d_ipaddr, sizeof(in_addr_t));
memcpy(&ctx.d_draddr, &dev->net_dev.d_draddr, sizeof(in_addr_t));
memcpy(&ctx.d_netmask, &dev->net_dev.d_netmask, sizeof(in_addr_t));
#endif
#ifdef CONFIG_NET_IPv6
memcpy(&ctx.d_ipv6addr, &dev->net_dev.d_ipv6addr, sizeof(net_ipv6addr_t));
memcpy(&ctx.d_ipv6draddr,
&dev->net_dev.d_ipv6draddr,
sizeof(net_ipv6addr_t));
memcpy(&ctx.d_ipv6netmask,
&dev->net_dev.d_ipv6netmask,
sizeof(net_ipv6addr_t));
#endif
/* Save checksum without checksum for validation */
ctx.checksum = calc_checksum((FAR uint8_t *)&ctx,
offsetof(struct alt1250_save_ctx, checksum));
/* Call user application callback */
dev->context_cb((FAR uint8_t *)&ctx, sizeof(ctx));
return OK;
}
int alt1250_apply_daemon_context(FAR struct alt1250_s *dev,
FAR struct alt1250_save_ctx *ctx)
{
uint16_t checksum;
if (!dev)
{
return ERROR;
}
/* Calc checksum without checksum parameter */
checksum = calc_checksum((FAR uint8_t *)ctx,
offsetof(struct alt1250_save_ctx, checksum));
if (ctx->checksum != checksum)
{
dbg_alt1250("Saved context is invalid.\n");
return ERROR;
}
/* Copy APN settings */
dev->apn.ip_type = ctx->ip_type;
dev->apn.auth_type = ctx->auth_type;
dev->apn.apn_type = ctx->apn_type;
memcpy(dev->apn_name, ctx->apn_name, LTE_APN_LEN);
memcpy(dev->user_name, ctx->user_name, LTE_APN_USER_NAME_LEN);
memcpy(dev->pass, ctx->pass, LTE_APN_PASSWD_LEN);
/* Set APN related pointers */
dev->apn.apn = dev->apn_name;
dev->apn.user_name = dev->user_name;
dev->apn.password = dev->pass;
/* Copy connection information */
dev->net_dev.d_flags = ctx->d_flags;
#ifdef CONFIG_NET_IPv4
memcpy(&dev->net_dev.d_ipaddr, &ctx->d_ipaddr, sizeof(in_addr_t));
memcpy(&dev->net_dev.d_draddr, &ctx->d_draddr, sizeof(in_addr_t));
memcpy(&dev->net_dev.d_netmask, &ctx->d_netmask, sizeof(in_addr_t));
#endif
#ifdef CONFIG_NET_IPv6
memcpy(&dev->net_dev.d_ipv6addr, &ctx->d_ipv6addr, sizeof(net_ipv6addr_t));
memcpy(&dev->net_dev.d_ipv6draddr,
&ctx->d_ipv6draddr,
sizeof(net_ipv6addr_t));
memcpy(&dev->net_dev.d_ipv6netmask,
&ctx->d_ipv6netmask,
sizeof(net_ipv6addr_t));
#endif
return OK;
}
#endif