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webguiapp/src/GSMTransport.c

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/* Copyright 2022 Bogdan Pilyugin
*
* Licensed 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.
*
* File name: GSMTransport.c
* Project: ChargePointMainboard
* Created on: 2022-07-21
* Author: Bogdan Pilyugin
* Description:
*/
#include <string.h>
#include "../include/WebGUIAppMain.h"
#include "freertos/FreeRTOS.h"
#include "freertos/event_groups.h"
#include "freertos/task.h"
#include "esp_netif.h"
#include "esp_netif_ppp.h"
#include "esp_event.h"
#include "esp_modem_api.h"
#include "esp_log.h"
#include "driver/gpio.h"
#include "NetTransport.h"
#if CONFIG_WEBGUIAPP_GPRS_ENABLE
static EventGroupHandle_t event_group = NULL;
static const int CONNECT_BIT = BIT0;
static const char *TAG = "GSMTransport";
static int ResetType = 0;
static bool isPPPinitializing = false;
#endif
static bool isPPPConn = false;
TaskHandle_t initTaskhandle;
#define PPP_MODEM_TIMEOUT 40
MODEM_INFO mod_info = { "-", "-", "-", "-" };
esp_netif_t *ppp_netif;
esp_modem_dce_t *dce;
TaskHandle_t trasporttask;
static void (*gsm_reset)(uint8_t level) = NULL;
void RegGSMReset(void (*gsm_rst)(uint8_t level))
{
gsm_reset = gsm_rst;
}
esp_netif_t* GetPPPNetifAdapter(void)
{
return ppp_netif;
}
MODEM_INFO* GetPPPModemInfo(void)
{
return &mod_info;
}
bool isPPPConnected(void)
{
return isPPPConn;
}
#if CONFIG_WEBGUIAPP_GPRS_ENABLE
static void on_ppp_changed(void *arg, esp_event_base_t event_base,
int32_t event_id,
void *event_data)
{
ESP_LOGI(TAG, "PPP state changed event %u", (unsigned int)event_id);
if (event_id == NETIF_PPP_ERRORUSER)
{
/* User interrupted event from esp-netif */
esp_netif_t *netif = event_data;
ESP_LOGI(TAG, "User interrupted event from netif:%p", netif);
}
}
static void on_ip_event(void *arg, esp_event_base_t event_base,
int32_t event_id,
void *event_data)
{
ESP_LOGD(TAG, "IP event! %u", (unsigned int)event_id);
if (event_id == IP_EVENT_PPP_GOT_IP)
{
esp_netif_dns_info_t dns_info;
ip_event_got_ip_t *event = (ip_event_got_ip_t*) event_data;
esp_netif_t *netif = event->esp_netif;
ESP_LOGI(TAG, "Modem Connect to PPP Server");
ESP_LOGI(TAG, "~~~~~~~~~~~~~~");
ESP_LOGI(TAG, "IP : " IPSTR, IP2STR(&event->ip_info.ip));
ESP_LOGI(TAG, "Netmask : " IPSTR, IP2STR(&event->ip_info.netmask));
ESP_LOGI(TAG, "Gateway : " IPSTR, IP2STR(&event->ip_info.gw));
esp_netif_get_dns_info(netif, 0, &dns_info);
ESP_LOGI(TAG, "Name Server1: " IPSTR, IP2STR(&dns_info.ip.u_addr.ip4));
esp_netif_get_dns_info(netif, 1, &dns_info);
ESP_LOGI(TAG, "Name Server2: " IPSTR, IP2STR(&dns_info.ip.u_addr.ip4));
ESP_LOGI(TAG, "~~~~~~~~~~~~~~");
xEventGroupSetBits(event_group, CONNECT_BIT);
isPPPConn = true;
ESP_LOGI(TAG, "GOT ip event!!!");
}
else if (event_id == IP_EVENT_PPP_LOST_IP)
{
ESP_LOGI(TAG, "Modem Disconnect from PPP Server");
isPPPConn = false;
}
else if (event_id == IP_EVENT_GOT_IP6)
{
ESP_LOGI(TAG, "GOT IPv6 event!");
ip_event_got_ip6_t *event = (ip_event_got_ip6_t*) event_data;
ESP_LOGI(TAG, "Got IPv6 address " IPV6STR, IPV62STR(event->ip6_info.ip));
}
}
void ModemNotReady(void)
{
}
static void GSMInitTask(void *pvParameter)
{
isPPPinitializing = true;
int starttype = *((int*) pvParameter);
esp_event_handler_unregister(IP_EVENT, ESP_EVENT_ANY_ID, &on_ip_event);
esp_event_handler_unregister(NETIF_PPP_STATUS, ESP_EVENT_ANY_ID, &on_ppp_changed);
if (dce)
{
esp_modem_destroy(dce);
}
if (ppp_netif != NULL)
{
esp_netif_destroy(ppp_netif);
}
if (starttype == 0)
{
#if CONFIG_MODEM_DEVICE_POWER_CONTROL_PIN >= 0
gpio_set_level(CONFIG_MODEM_DEVICE_POWER_CONTROL_PIN, 0);
vTaskDelay(pdMS_TO_TICKS(1000));
gpio_set_level(CONFIG_MODEM_DEVICE_POWER_CONTROL_PIN, 1);
vTaskDelay(pdMS_TO_TICKS(5000));
#else
if (gsm_reset)
{
gsm_reset(0);
vTaskDelay(pdMS_TO_TICKS(1000));
gsm_reset(1);
}
else
{
ESP_LOGE(TAG, "ethernet chip reset pin not defined");
ESP_ERROR_CHECK(1);
}
#endif
}
ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, ESP_EVENT_ANY_ID, &on_ip_event, NULL));
ESP_ERROR_CHECK(esp_event_handler_register(NETIF_PPP_STATUS, ESP_EVENT_ANY_ID, &on_ppp_changed, NULL));
event_group = xEventGroupCreate();
/* Configure the DTE */
esp_modem_dte_config_t dte_config = ESP_MODEM_DTE_DEFAULT_CONFIG();
/* setup UART specific configuration based on kconfig options */
//dte_config.uart_config.port_num = CONFIG_MODEM_UART_PORT_NUM;
dte_config.uart_config.tx_io_num = CONFIG_MODEM_UART_TX_PIN;
dte_config.uart_config.rx_io_num = CONFIG_MODEM_UART_RX_PIN;
dte_config.uart_config.rts_io_num = CONFIG_MODEM_UART_RTS_PIN;
dte_config.uart_config.cts_io_num = CONFIG_MODEM_UART_CTS_PIN;
dte_config.uart_config.rx_buffer_size = CONFIG_MODEM_UART_RX_BUFFER_SIZE;
dte_config.uart_config.tx_buffer_size = CONFIG_MODEM_UART_TX_BUFFER_SIZE;
dte_config.uart_config.event_queue_size = CONFIG_MODEM_UART_EVENT_QUEUE_SIZE;
dte_config.task_stack_size = CONFIG_MODEM_UART_EVENT_TASK_STACK_SIZE;
dte_config.task_priority = CONFIG_MODEM_UART_EVENT_TASK_PRIORITY;
dte_config.dte_buffer_size = CONFIG_MODEM_UART_RX_BUFFER_SIZE / 2;
/* Configure the DCE */
esp_modem_dce_config_t dce_config = ESP_MODEM_DCE_DEFAULT_CONFIG(CONFIG_MODEM_PPP_APN);
/* Configure the PPP netif */
esp_netif_inherent_config_t esp_netif_conf = ESP_NETIF_INHERENT_DEFAULT_PPP();
esp_netif_conf.route_prio = PPP_PRIO;
esp_netif_config_t netif_ppp_config = ESP_NETIF_DEFAULT_PPP();
netif_ppp_config.base = &esp_netif_conf;
/* Init netif object */
ppp_netif = esp_netif_new(&netif_ppp_config);
assert(ppp_netif);
dce = esp_modem_new_dev(ESP_MODEM_DCE_SIM800, &dte_config, &dce_config, ppp_netif);
assert(dce);
mod_info.model[0] = 0x00;
int GSMConnectTimeout = 0;
while (esp_modem_get_module_name(dce, mod_info.model) != ESP_OK)
{
if (++GSMConnectTimeout >= PPP_MODEM_TIMEOUT)
goto modem_init_fail;
vTaskDelay(pdMS_TO_TICKS(1000));
}
ESP_LOGI(TAG, "Module type:%s", mod_info.model);
mod_info.imsi[0] = 0x00;
while (esp_modem_get_imsi(dce, mod_info.imsi) != ESP_OK)
{
if (++GSMConnectTimeout >= PPP_MODEM_TIMEOUT)
goto modem_init_fail;
vTaskDelay(pdMS_TO_TICKS(1000));
}
ESP_LOGI(TAG, "IMSI:%s", mod_info.imsi);
mod_info.oper[0] = 0x00;
int tech = 0;
while (esp_modem_get_operator_name(dce, mod_info.oper, &tech) != ESP_OK)
{
if (++GSMConnectTimeout >= PPP_MODEM_TIMEOUT)
goto modem_init_fail;
vTaskDelay(pdMS_TO_TICKS(1000));
}
ESP_LOGI(TAG, "Operator:%s", mod_info.oper);
mod_info.imei[0] = 0x00;
while (esp_modem_get_imei(dce, mod_info.imei) != ESP_OK)
{
if (++GSMConnectTimeout >= PPP_MODEM_TIMEOUT)
goto modem_init_fail;
vTaskDelay(pdMS_TO_TICKS(1000));
}
ESP_LOGI(TAG, "IMEI:%s", mod_info.imei);
while (esp_modem_set_mode(dce, ESP_MODEM_MODE_CMUX) != ESP_OK)
{
if (++GSMConnectTimeout >= PPP_MODEM_TIMEOUT)
goto modem_init_fail;
vTaskDelay(pdMS_TO_TICKS(1000));
}
ESP_LOGI(TAG, "PPP data mode OK");
xEventGroupWaitBits(event_group, CONNECT_BIT, pdTRUE, pdTRUE, portMAX_DELAY);
isPPPinitializing = false;
vTaskDelete(NULL);
return;
modem_init_fail:
ESP_LOGE(TAG, "PPP modem init error");
isPPPinitializing = false;
vTaskDelete(NULL);
}
void PPPModemColdStart(void)
{
ResetType = 0;
xTaskCreate(GSMInitTask, "GSMInitTask", 1024 * 6, &ResetType, 3, &initTaskhandle);
}
void PPPModemSoftRestart(void)
{
ResetType = 1;
xTaskCreate(GSMInitTask, "GSMInitTask", 1024 * 6, &ResetType, 3, &initTaskhandle);
}
static void GSMRunTask(void *pvParameter)
{
while (1)
{
if (!isPPPConn && !isPPPinitializing)
{ //try to reconnect modem
ESP_LOGI(TAG, "PPP modem restart");
PPPModemColdStart();
}
vTaskDelay(pdMS_TO_TICKS(30000));
}
}
void PPPModemStart(void)
{
xTaskCreate(GSMRunTask, "GSMRunTask", 1024 * 4, &ResetType, 3, NULL);
}
int PPPModemGetRSSI(void)
{
int rssi = -1, ber;
esp_modem_get_signal_quality(dce, &rssi, &ber);
//ESP_LOGW(TAG, "Signal %d, ber %d", rssi, ber);
return rssi;
}
void ModemSendAT(char *cmd, char *resp, int timeout)
{
esp_modem_at(dce, cmd, resp, timeout);
ESP_LOGI(TAG, "Command:%s", cmd);
ESP_LOGW(TAG, "%s", resp);
}
void ModemSendSMS(void)
{
}
#endif
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