app_init.c

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/*
 * ether2ser - Ethernet <-> synchronous V.24 (RS-232/V.28) bridge
 *
 * File:    src/system/app_init.c
 * Purpose: Application context initialization and startup defaults.
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Copyright (c) 2026 Florian <f.leuze@outlook.de>
 */
 
// Related headers
#include "app_context.h"
 
// Standard library headers
#include <stdbool.h>
#include <string.h>
 
// Library Headers
 
// Project Headers
#include "drivers/pio_tx_rx_driver.h"
#include "drivers/v24_config.h"
#include "drivers/w5500_driver.h"
#include "protocol/hdlc_common.h"
#include "protocol/hdlc_sync.h"
#include "system/common.h"
#include "system/persistent_config.h"
 
// Generated headers
app_ctx_t* app_ctx = NULL;
 
app_ctx_t* get_app_ctx(void)
{
    return app_ctx;
}
 
void init_app(app_ctx_t* app, const config_t* persistent_config)
{
    app_ctx = app;
    memset(&app->stats, 0, sizeof(app->stats));
    app->need_prompt             = true;
    app->rx_frame_buffer.payload = app->rx_frame_buffer_data;
    app->rx_frame_buffer.length  = 0;
 
    app->tx_frame_buffer.payload = app->tx_frame_buffer_data;
    app->tx_frame_buffer.length  = 0;
 
    if (app->config_valid)
    {
        memcpy(&app->persistent_config, persistent_config, sizeof(config_t));
        set_loglevel(app->persistent_config.log_level);
 
        app->local_config       = app->persistent_config.local_config;
        app->destination_config = app->persistent_config.remote_config;
        app->v24_config         = app->persistent_config.v24_config;
        app->net_config         = app->persistent_config.net_config;
        w5500_set_network(&app->net_config);
        reinit_v24_config(&app->v24_config, app->v24_config.baudrate);
    }
    else
    {
        // Setup loglevel
        set_loglevel(LOG_LEVEL_DEBUG);
        // Initialize Network Configuration
        app->local_config = (UDP_CONFIG_T){
            .ip_address = DEFAULT_IP_ADDR,
            .port       = DEFAULT_UDP_PORT,
        };
        w5500_set_network_defaults(&app->net_config);
        init_v24_config(&app->v24_config, V24_BAUD_9600);
        app->v24_config.external_clock = false;
 
        app->destination_config = (UDP_CONFIG_T){
            .port = DEFAULT_UDP_PORT,
        };
        memcpy(app->destination_config.ip_address, app->net_config.broadcast_address, 4);
    }
 
    // Initialize HDLC Sync
    hdlc_sync_acc_init(&app->accumulator, HDLC_FLAG_BYTE);
    app->reconstructed_frame = (HDLC_FRAME_T){.payload  = app->reconstructed_frame_buffer,
                                              .length   = 0,
                                              .capacity = sizeof(app->reconstructed_frame_buffer)};
}