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