/**
 * This software is subject to the ANT+ Shared Source License
 * www.thisisant.com/swlicenses
 * Copyright (c) Dynastream Innovations, Inc. 2016
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or
 * without modification, are permitted provided that the following
 * conditions are met:
 * 1) Redistributions of source code must retain the above
 *    copyright notice, this list of conditions and the following
 *    disclaimer.
 * 
 * 2) Redistributions in binary form must reproduce the above
 *    copyright notice, this list of conditions and the following
 *    disclaimer in the documentation and/or other materials
 *    provided with the distribution.
 * 
 * 3) Neither the name of Dynastream nor the names of its
 *    contributors may be used to endorse or promote products
 *    derived from this software without specific prior
 *    written permission.
 * 
 * The following actions are prohibited:
 * 1) Redistribution of source code containing the ANT+ Network
 *    Key. The ANT+ Network Key is available to ANT+ Adopters.
 *    Please refer to http://thisisant.com to become an ANT+
 *    Adopter and access the key.
 * 
 * 2) Reverse engineering, decompilation, and/or disassembly of
 *    software provided in binary form under this license.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; DAMAGE TO ANY DEVICE, LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE. SOME STATES DO NOT ALLOW
 * THE EXCLUSION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE
 * ABOVE LIMITATIONS MAY NOT APPLY TO YOU.
 * 
 */
/*
 * Before compiling this example for NRF52, complete the following steps:
 * - Download the S212 SoftDevice from <a href="https://www.thisisant.com/developer/components/nrf52832" target="_blank">thisisant.com</a>.
 * - Extract the downloaded zip file and copy the S212 SoftDevice headers to <tt>\<InstallFolder\>/components/softdevice/s212/headers</tt>.
 * If you are using Keil packs, copy the files into a @c headers folder in your example folder.
 * - Make sure that @ref ANT_LICENSE_KEY in @c nrf_sdm.h is uncommented.
 */

#include "nrf_soc.h"
#include "nrf_pwr_mgmt.h"
#include "boards.h"
#include "hardfault.h"
#include "app_error.h"
#include "ant_interface.h"
#include "ant_parameters.h"
#include "nrf_sdh.h"
#include "nrf_sdh_ant.h"
#include "sdk_config.h"

#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"

/**@brief Initialize application.
 */
static void application_initialize()
{
    uint32_t err_code = sd_ant_cw_test_mode_init();
    APP_ERROR_CHECK(err_code);

    // sd_ant_cw_test_mode assumes that the hfclck is enabled.
    // Request and wait for it to be ready.
    err_code = sd_clock_hfclk_request();
    APP_ERROR_CHECK(err_code);

    uint32_t hfclk_is_running = 0;

    while (!hfclk_is_running)
    {
        APP_ERROR_CHECK(sd_clock_hfclk_is_running(&hfclk_is_running) );
    }

    // CW Mode at +4dBm, 2410 MHz with Modulated Transmission
    err_code = sd_ant_cw_test_mode(RADIO_FREQ_OFFSET,
                                   RADIO_TX_POWER_LVL_CUSTOM,
                                   RADIO_TXPOWER_TXPOWER_Pos4dBm,
                                   MODULATED_TRANSMISSION_TEST_MODE);
    APP_ERROR_CHECK(err_code);

    err_code = nrf_pwr_mgmt_init();
    APP_ERROR_CHECK(err_code);
}


/**@brief Function for ANT stack initialization.
 *
 * @details Initializes the SoftDevice and the ANT event interrupt.
 */
static void softdevice_setup(void)
{
    ret_code_t err_code = nrf_sdh_enable_request();
    APP_ERROR_CHECK(err_code);

    ASSERT(nrf_sdh_is_enabled());

    err_code = nrf_sdh_ant_enable();
    APP_ERROR_CHECK(err_code);
}


/**
 *@brief Function for initializing logging.
 */
static void log_init(void)
{
    ret_code_t err_code = NRF_LOG_INIT(NULL);
    APP_ERROR_CHECK(err_code);

    NRF_LOG_DEFAULT_BACKENDS_INIT();
}


/* Main function */
int main(void)
{
    log_init();
    softdevice_setup();
    application_initialize();

    NRF_LOG_INFO("ANT Continuous Waveform Mode example started.");

    // Enter main loop
    for (;;)
    {
        NRF_LOG_FLUSH();
        nrf_pwr_mgmt_run();
    }
}