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/*
* Copyright (C) 2021 metraTec GmbH
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef SIMCOM_SIM7080_H
#define SIMCOM_SIM7080_H
#include <zephyr/kernel.h>
#include <ctype.h>
#include <inttypes.h>
#include <errno.h>
#include <zephyr/drivers/gpio.h>
#include <zephyr/drivers/modem/simcom-sim7080.h>
#include <zephyr/device.h>
#include <zephyr/devicetree.h>
#include <zephyr/init.h>
#include <string.h>
#include <zephyr/net/net_if.h>
#include <zephyr/net/net_offload.h>
#include <zephyr/net/socket_offload.h>
#include "modem_context.h"
#include "modem_cmd_handler.h"
#include "modem_iface_uart.h"
#include "modem_socket.h"
#define MDM_UART_NODE DT_INST_BUS(0)
#define MDM_UART_DEV DEVICE_DT_GET(MDM_UART_NODE)
#define MDM_MAX_DATA_LENGTH 1024
#define MDM_RECV_BUF_SIZE 1024
#define MDM_MAX_SOCKETS 5
#define MDM_BASE_SOCKET_NUM 0
#define MDM_RECV_MAX_BUF 30
#define BUF_ALLOC_TIMEOUT K_SECONDS(1)
#define MDM_CMD_TIMEOUT K_SECONDS(10)
#define MDM_REGISTRATION_TIMEOUT K_SECONDS(180)
#define MDM_CONNECT_TIMEOUT K_SECONDS(90)
#define MDM_PDP_TIMEOUT K_SECONDS(120)
#define MDM_DNS_TIMEOUT K_SECONDS(210)
#define MDM_WAIT_FOR_RSSI_DELAY K_SECONDS(2)
#define MDM_WAIT_FOR_RSSI_COUNT 30
#define MDM_MAX_AUTOBAUD 5
#define MDM_MAX_CEREG_WAITS 40
#define MDM_MAX_CGATT_WAITS 40
#define MDM_BOOT_TRIES 4
#define MDM_GNSS_PARSER_MAX_LEN 128
#define MDM_APN CONFIG_MODEM_SIMCOM_SIM7080_APN
#define MDM_LTE_BANDS CONFIG_MODEM_SIMCOM_SIM7080_LTE_BANDS
#define RSSI_TIMEOUT_SECS 30
/*
* Default length of modem data.
*/
#define MDM_MANUFACTURER_LENGTH 12
#define MDM_MODEL_LENGTH 16
#define MDM_REVISION_LENGTH 64
#define MDM_IMEI_LENGTH 16
#define MDM_IMSI_LENGTH 16
#define MDM_ICCID_LENGTH 32
enum sim7080_state {
SIM7080_STATE_INIT = 0,
SIM7080_STATE_NETWORKING,
SIM7080_STATE_GNSS,
SIM7080_STATE_OFF,
};
/* Possible states of the ftp connection. */
enum sim7080_ftp_connection_state {
/* Not connected yet. */
SIM7080_FTP_CONNECTION_STATE_INITIAL = 0,
/* Connected and still data available. */
SIM7080_FTP_CONNECTION_STATE_CONNECTED,
/* All data transferred. */
SIM7080_FTP_CONNECTION_STATE_FINISHED,
/* Something went wrong. */
SIM7080_FTP_CONNECTION_STATE_ERROR,
};
/*
* Driver data.
*/
struct sim7080_data {
/*
* Network interface of the sim module.
*/
struct net_if *netif;
uint8_t mac_addr[6];
/*
* Uart interface of the modem.
*/
struct modem_iface_uart_data iface_data;
uint8_t iface_rb_buf[MDM_MAX_DATA_LENGTH];
/*
* Modem command handler.
*/
struct modem_cmd_handler_data cmd_handler_data;
uint8_t cmd_match_buf[MDM_RECV_BUF_SIZE + 1];
/*
* Modem socket data.
*/
struct modem_socket_config socket_config;
struct modem_socket sockets[MDM_MAX_SOCKETS];
/*
* Current state of the modem.
*/
enum sim7080_state state;
/*
* RSSI work
*/
struct k_work_delayable rssi_query_work;
/*
* Information over the modem.
*/
char mdm_manufacturer[MDM_MANUFACTURER_LENGTH];
char mdm_model[MDM_MODEL_LENGTH];
char mdm_revision[MDM_REVISION_LENGTH];
char mdm_imei[MDM_IMEI_LENGTH];
#if defined(CONFIG_MODEM_SIM_NUMBERS)
char mdm_imsi[MDM_IMSI_LENGTH];
char mdm_iccid[MDM_ICCID_LENGTH];
#endif /* #if defined(CONFIG_MODEM_SIM_NUMBERS) */
int mdm_rssi;
/*
* Current operating socket and statistics.
*/
int current_sock_fd;
int current_sock_written;
/*
* Network registration of the modem.
*/
uint8_t mdm_registration;
/*
* Whether gprs is attached or detached.
*/
uint8_t mdm_cgatt;
/*
* If the sim card is ready or not.
*/
bool cpin_ready;
/*
* Flag if the PDP context is active.
*/
bool pdp_active;
/* SMS buffer structure provided by read. */
struct sim7080_sms_buffer *sms_buffer;
/* Position in the sms buffer. */
uint8_t sms_buffer_pos;
/* Ftp related variables. */
struct {
/* User buffer for ftp data. */
char *read_buffer;
/* Length of the read buffer/number of bytes read. */
size_t nread;
/* State of the ftp connection. */
enum sim7080_ftp_connection_state state;
} ftp;
/*
* Semaphore(s).
*/
struct k_sem sem_response;
struct k_sem sem_tx_ready;
struct k_sem sem_dns;
struct k_sem sem_ftp;
};
/*
* Socket read callback data.
*/
struct socket_read_data {
char *recv_buf;
size_t recv_buf_len;
struct sockaddr *recv_addr;
uint16_t recv_read_len;
};
#endif /* SIMCOM_SIM7080_H */