light_smart.c

/*
 * Copyright 2016-2022, Cypress Semiconductor Corporation (an Infineon company) or
 * an affiliate of Cypress Semiconductor Corporation.  All rights reserved.
 *
 * This software, including source code, documentation and related
 * materials ("Software") is owned by Cypress Semiconductor Corporation
 * or one of its affiliates ("Cypress") and is protected by and subject to
 * worldwide patent protection (United States and foreign),
 * United States copyright laws and international treaty provisions.
 * Therefore, you may use this Software only as provided in the license
 * agreement accompanying the software package from which you
 * obtained this Software ("EULA").
 * If no EULA applies, Cypress hereby grants you a personal, non-exclusive,
 * non-transferable license to copy, modify, and compile the Software
 * source code solely for use in connection with Cypress's
 * integrated circuit products.  Any reproduction, modification, translation,
 * compilation, or representation of this Software except as specified
 * above is prohibited without the express written permission of Cypress.
 *
 * Disclaimer: THIS SOFTWARE IS PROVIDED AS-IS, WITH NO WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, NONINFRINGEMENT, IMPLIED
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 * does not assume any liability arising out of the application or use of the
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 * failure of the Cypress product may reasonably be expected to result in
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 * of such system or application assumes all risk of such use and in doing
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 */

/** @file
 *
 * This Light Smart demo application shows a simple implementation of a Light
 * Controller.The app is based on the snip/mesh/mesh_light_lc sample which
 * implements LE Mesh Light LC (Lightness Control) Server model. As a Light LC
 * device, the Light Smart application allows two types of the controls
 * depending on the Light LC Mode state. If Light LC Mode is on the,
 * application is controlled by the occupancy sensor input and can be also
 * controlled by the Light LC On/Off or Generic On/Off messages sent to the
 * Light LC element of the device. If Light LC Mode is off, the Light Smart
 * is controlled by the Generic On/Off, Generic Level, or Light Lightness
 * messages sent to the first (Light Lightness) element of the device.
 *
 * When Light LC Mode is on, the app executes Light LC state machine. On
 * Occupancy detection, the LED is fading on, then stays in Run state, then
 * fades off, stays in the Prolong state, and fades to standby automatic
 * state. The timing of the state machines and the lightness levels in all
 * states are controlled by the properties configured in the
 * mesh_element2_properties.
 *
 * The application button on the EVK board can also be used to duplication
 * On/Off messages. For example, push of the button simulates Light LC On
 * message which fades on the LED.
 *
 * To perform factory reset, push and hold the application button for more
 * than 5 seconds.
 *
 * Features demonstrated
 *  - LED usage on the EVK
 *  - Occupancy sensor of the EVK
 *  - Processing of the Light Lightness messages
 *
 * To demonstrate the app, work through the following steps.
 * 1. Build and download the application (to the WICED board)
 * 2. Use Mesh Client or Client Control to provision the Light Smart app
 *
 */
#include "wiced_bt_ble.h"
#include "wiced_bt_gatt.h"
#include "wiced_bt_mesh_models.h"
#include "wiced_bt_trace.h"
#include "wiced_bt_mesh_app.h"
#include "wiced_hal_gpio.h"
#include "wiced_platform.h"
#include "led_control.h"

#include "wiced_bt_cfg.h"
extern wiced_bt_cfg_settings_t wiced_bt_cfg_settings;

/******************************************************
 *          Constants
 ******************************************************/
#define MESH_PID                0x310D
#define MESH_VID                0x0002

/******************************************************
 *          Structures
 ******************************************************/

/******************************************************
 *          Function Prototypes
 ******************************************************/
static void mesh_app_init(wiced_bool_t is_provisioned);
static void mesh_app_hardware_init(void);
static void mesh_app_attention(uint8_t element_idx, uint8_t time);
static void mesh_app_message_handler(uint8_t element_idx, uint16_t event, void *p_data);
static void mesh_app_process_level_status(uint8_t element_idx, wiced_bt_mesh_light_lightness_status_t *p_data);
static void mesh_app_process_sensor_status(uint8_t element_idx, wiced_bt_mesh_sensor_status_data_t *p_data);

static void button_interrupt_handler(void* user_data, uint8_t value);
static void process_button_push(uint8_t element_idx);

/******************************************************
 *          Variables Definitions
 ******************************************************/
uint8_t mesh_mfr_name[WICED_BT_MESH_PROPERTY_LEN_DEVICE_MANUFACTURER_NAME] = { 'C', 'y', 'p', 'r', 'e', 's', 's', 0 };
uint8_t mesh_model_num[WICED_BT_MESH_PROPERTY_LEN_DEVICE_MODEL_NUMBER]     = { '1', '2', '3', '4', 0, 0, 0, 0 };
uint8_t mesh_system_id[8]                                                  = { 0xbb, 0xb8, 0xa1, 0x80, 0x5f, 0x9f, 0x91, 0x71 };

uint32_t mesh_light_lc_ambient_lux_level_on         = 10752;    // Ambient light full daylight in lux
uint32_t mesh_light_lc_ambient_lux_level_prolong    = 1075;     // Ambient light overcast day in lux
uint32_t mesh_light_lc_ambient_lux_level_standby    = 0;
uint16_t mesh_light_lc_lightness_on                 = 65535;
uint16_t mesh_light_lc_lightness_prolong            = 10000;
uint16_t mesh_light_lc_lightness_standby            = 1000;
uint8_t  mesh_light_lc_regulator_accuracy           = 50;
uint8_t  mesh_light_lc_regulator_kid                = 1;
uint8_t  mesh_light_lc_regulator_kiu                = 1;
uint8_t  mesh_light_lc_regulator_kpd                = 1;
uint8_t  mesh_light_lc_regulator_kpu                = 1;
uint32_t mesh_light_lc_time_fade                    = 2000;
uint32_t mesh_light_lc_time_fade_on                 = 500;
uint32_t mesh_light_lc_time_fade_standby_auto       = 2000;
uint32_t mesh_light_lc_time_fade_standby_manual     = 0; // 1000;
uint32_t mesh_light_lc_time_occupany_delay          = 100;
uint32_t mesh_light_lc_time_prolong                 = 10000;
uint32_t mesh_light_lc_time_run_on                  = 20000;

wiced_bt_mesh_core_config_model_t   mesh_element1_models[] =
{
    WICED_BT_MESH_DEVICE,
    WICED_BT_MESH_MODEL_LIGHT_LIGHTNESS_SERVER,
};
wiced_bt_mesh_core_config_model_t   mesh_element2_models[] =
{
    WICED_BT_MESH_MODEL_LIGHT_LC_SERVER,
};

#define _USER_ WICED_BT_MESH_PROPERTY_TYPE_USER
#define _RW_   (WICED_BT_MESH_PROPERTY_ID_READABLE | WICED_BT_MESH_PROPERTY_ID_WRITABLE)

wiced_bt_mesh_core_config_property_t mesh_element2_properties[] =
{
    { WICED_BT_MESH_PROPERTY_AMBIENT_LUX_LEVEL_ON     , _USER_, _RW_, WICED_BT_MESH_PROPERTY_LEN_AMBIENT_LUX_LEVEL_ON,      (uint8_t *)&mesh_light_lc_ambient_lux_level_on      },
    { WICED_BT_MESH_PROPERTY_AMBIENT_LUX_LEVEL_PROLONG, _USER_, _RW_, WICED_BT_MESH_PROPERTY_LEN_AMBIENT_LUX_LEVEL_PROLONG, (uint8_t *)&mesh_light_lc_ambient_lux_level_prolong },
    { WICED_BT_MESH_PROPERTY_AMBIENT_LUX_LEVEL_STANDBY, _USER_, _RW_, WICED_BT_MESH_PROPERTY_LEN_AMBIENT_LUX_LEVEL_STANDBY, (uint8_t *)&mesh_light_lc_ambient_lux_level_standby },
    { WICED_BT_MESH_PROPERTY_LIGHTNESS_ON             , _USER_, _RW_, WICED_BT_MESH_PROPERTY_LEN_LIGHTNESS_ON,              (uint8_t *)&mesh_light_lc_lightness_on              },
    { WICED_BT_MESH_PROPERTY_LIGHTNESS_PROLONG        , _USER_, _RW_, WICED_BT_MESH_PROPERTY_LEN_LIGHTNESS_PROLONG,         (uint8_t *)&mesh_light_lc_lightness_prolong         },
    { WICED_BT_MESH_PROPERTY_LIGHTNESS_STANDBY        , _USER_, _RW_, WICED_BT_MESH_PROPERTY_LEN_LIGHTNESS_STANDBY,         (uint8_t *)&mesh_light_lc_lightness_standby         },
    { WICED_BT_MESH_PROPERTY_REGULATOR_ACCURACY       , _USER_, _RW_, WICED_BT_MESH_PROPERTY_LEN_REGULATOR_ACCURACY,        (uint8_t *)&mesh_light_lc_regulator_accuracy        },
    { WICED_BT_MESH_PROPERTY_REGULATOR_KID            , _USER_, _RW_, WICED_BT_MESH_PROPERTY_LEN_REGULATOR_KID,             (uint8_t *)&mesh_light_lc_regulator_kid             },
    { WICED_BT_MESH_PROPERTY_REGULATOR_KIU            , _USER_, _RW_, WICED_BT_MESH_PROPERTY_LEN_REGULATOR_KIU,             (uint8_t *)&mesh_light_lc_regulator_kiu             },
    { WICED_BT_MESH_PROPERTY_REGULATOR_KPD            , _USER_, _RW_, WICED_BT_MESH_PROPERTY_LEN_REGULATOR_KPD,             (uint8_t *)&mesh_light_lc_regulator_kpd             },
    { WICED_BT_MESH_PROPERTY_REGULATOR_KPU            , _USER_, _RW_, WICED_BT_MESH_PROPERTY_LEN_REGULATOR_KPU,             (uint8_t *)&mesh_light_lc_regulator_kpu             },
    { WICED_BT_MESH_PROPERTY_TIME_FADE                , _USER_, _RW_, WICED_BT_MESH_PROPERTY_LEN_TIME_FADE,                 (uint8_t *)&mesh_light_lc_time_fade                 },
    { WICED_BT_MESH_PROPERTY_TIME_FADE_ON             , _USER_, _RW_, WICED_BT_MESH_PROPERTY_LEN_TIME_FADE_ON,              (uint8_t *)&mesh_light_lc_time_fade_on              },
    { WICED_BT_MESH_PROPERTY_TIME_FADE_STANDBY_AUTO   , _USER_, _RW_, WICED_BT_MESH_PROPERTY_LEN_TIME_FADE_STANDBY_AUTO,    (uint8_t *)&mesh_light_lc_time_fade_standby_auto    },
    { WICED_BT_MESH_PROPERTY_TIME_FADE_STANDBY_MANUAL , _USER_, _RW_, WICED_BT_MESH_PROPERTY_LEN_TIME_FADE_STANDBY_MANUAL,  (uint8_t *)&mesh_light_lc_time_fade_standby_manual  },
    { WICED_BT_MESH_PROPERTY_TIME_OCCUPANCY_DELAY     , _USER_, _RW_, WICED_BT_MESH_PROPERTY_LEN_TIME_OCCUPANCY_DELAY,      (uint8_t *)&mesh_light_lc_time_occupany_delay       },
    { WICED_BT_MESH_PROPERTY_TIME_PROLONG             , _USER_, _RW_, WICED_BT_MESH_PROPERTY_LEN_TIME_PROLONG,              (uint8_t *)&mesh_light_lc_time_prolong              },
    { WICED_BT_MESH_PROPERTY_TIME_RUN_ON              , _USER_, _RW_, WICED_BT_MESH_PROPERTY_LEN_TIME_RUN_ON,               (uint8_t *)&mesh_light_lc_time_run_on               },
};
#define MESH_APP_NUM_PROPERTIES (sizeof(mesh_element2_properties) / sizeof(wiced_bt_mesh_core_config_property_t))

#define MESH_LIGHT_LC_SERVER_ELEMENT_INDEX      0
#define MESH_LIGHT_LC_CONTROL_ELEMENT_INDEX     1

wiced_bt_mesh_core_config_element_t mesh_elements[] =
{
    {
        .location = MESH_ELEM_LOC_MAIN,                                 // location description as defined in the GATT Bluetooth Namespace Descriptors section of the Bluetooth SIG Assigned Numbers
        .default_transition_time = MESH_DEFAULT_TRANSITION_TIME_IN_MS,  // Default transition time for models of the element in milliseconds
        .onpowerup_state = WICED_BT_MESH_ON_POWER_UP_STATE_RESTORE,     // Default element behavior on power up
        .default_level = 0xffff,                                        // Default value of the variable controlled on this element (for example power, lightness, temperature, hue...)
        .range_min = 1,                                                 // Minimum value of the variable controlled on this element (for example power, lightness, temperature, hue...)
        .range_max = 0xffff,                                            // Maximum value of the variable controlled on this element (for example power, lightness, temperature, hue...)
        .move_rollover = 0,                                             // If true when level gets to range_max during move operation, it switches to min, otherwise move stops.
        .properties_num = 0,                                            // Number of properties in the array models
        .properties = NULL,                                             // Array of properties in the element.
        .sensors_num = 0,                                               // Number of sensors in the sensor array
        .sensors = NULL,                                                // Array of sensors of that element
        .models_num = sizeof(mesh_element1_models) / sizeof(wiced_bt_mesh_core_config_model_t),  // Number of models in the array models
        .models = mesh_element1_models,                                 // Array of models located in that element. Model data is defined by structure wiced_bt_mesh_core_config_model_t
    },
    {
        .location = MESH_ELEM_LOC_MAIN,                                 // location description as defined in the GATT Bluetooth Namespace Descriptors section of the Bluetooth SIG Assigned Numbers
        .default_transition_time = MESH_DEFAULT_TRANSITION_TIME_IN_MS,  // Default transition time for models of the element in milliseconds
        .onpowerup_state = WICED_BT_MESH_ON_POWER_UP_STATE_RESTORE,     // Default element behavior on power up
        .default_level = 1,                                             // Default value of the variable controlled on this element (for example power, lightness, temperature, hue...)
        .range_min = 1,                                                 // Minimum value of the variable controlled on this element (for example power, lightness, temperature, hue...)
        .range_max = 0xffff,                                            // Maximum value of the variable controlled on this element (for example power, lightness, temperature, hue...)
        .move_rollover = 0,                                             // If true when level gets to range_max during move operation, it switches to min, otherwise move stops.
        .properties_num = MESH_APP_NUM_PROPERTIES,                      // Number of properties in the array models
        .properties = mesh_element2_properties,                         // Array of properties in the element.
        .sensors_num = 0,                                               // Number of sensors in the sensor array
        .sensors = NULL,                                                // Array of sensors of that element
        .models_num = sizeof(mesh_element2_models) / sizeof(wiced_bt_mesh_core_config_model_t),                              // Number of models in the array models
        .models = mesh_element2_models,                                 // Array of models located in that element. Model data is defined by structure wiced_bt_mesh_core_config_model_t
    },
};

wiced_bt_mesh_core_config_t  mesh_config =
{
    .company_id         = MESH_COMPANY_ID_CYPRESS,                  // Company identifier assigned by the Bluetooth SIG
    .product_id         = MESH_PID,                                 // Vendor-assigned product identifier
    .vendor_id          = MESH_VID,                                 // Vendor-assigned product version identifier
#if defined(LOW_POWER_NODE) && (LOW_POWER_NODE == 1)
    .features           = WICED_BT_MESH_CORE_FEATURE_BIT_LOW_POWER, // A bit field indicating the device features. In Low Power mode no Relay, no Proxy and no Friend
    .friend_cfg         =                                           // Empty Configuration of the Friend Feature
    {
        .receive_window = 0,                                        // Receive Window value in milliseconds supported by the Friend node.
        .cache_buf_len  = 0,                                        // Length of the buffer for the cache
        .max_lpn_num    = 0                                         // Max number of Low Power Nodes with established friendship. Must be > 0 if Friend feature is supported.
    },
    .low_power          =                                           // Configuration of the Low Power Feature
    {
        .rssi_factor           = 2,                                 // contribution of the RSSI measured by the Friend node used in Friend Offer Delay calculations.
        .receive_window_factor = 2,                                 // contribution of the supported Receive Window used in Friend Offer Delay calculations.
        .min_cache_size_log    = 3,                                 // minimum number of messages that the Friend node can store in its Friend Cache.
        .receive_delay         = 100,                               // Receive delay in 1 ms units to be requested by the Low Power node.
        .poll_timeout          = 36000                              // Poll timeout in 100ms units to be requested by the Low Power node.
    },
#else
    .features = WICED_BT_MESH_CORE_FEATURE_BIT_FRIEND | WICED_BT_MESH_CORE_FEATURE_BIT_RELAY | WICED_BT_MESH_CORE_FEATURE_BIT_GATT_PROXY_SERVER,   // Supports Friend, Relay and GATT Proxy
    .friend_cfg         =                                           // Configuration of the Friend Feature(Receive Window in Ms, messages cache)
    {
        .receive_window        = 20,
        .cache_buf_len         = 300,                               // Length of the buffer for the cache
        .max_lpn_num           = 4                                  // Max number of Low Power Nodes with established friendship. Must be > 0 if Friend feature is supported.
    },
    .low_power          =                                           // Configuration of the Low Power Feature
    {
        .rssi_factor           = 0,                                 // contribution of the RSSI measured by the Friend node used in Friend Offer Delay calculations.
        .receive_window_factor = 0,                                 // contribution of the supported Receive Window used in Friend Offer Delay calculations.
        .min_cache_size_log    = 0,                                 // minimum number of messages that the Friend node can store in its Friend Cache.
        .receive_delay         = 0,                                 // Receive delay in 1 ms units to be requested by the Low Power node.
        .poll_timeout          = 0                                  // Poll timeout in 100ms units to be requested by the Low Power node.
    },
#endif
    .gatt_client_only          = WICED_FALSE,                       // Can connect to mesh over GATT or ADV
    .elements_num  = (uint8_t)(sizeof(mesh_elements) / sizeof(mesh_elements[0])),   // number of elements on this device
    .elements      = mesh_elements                                  // Array of elements for this device
};

/*
 * Mesh application library will call into application functions if provided by the application.
 */
wiced_bt_mesh_app_func_table_t wiced_bt_mesh_app_func_table =
{
    mesh_app_init,          // application initialization
    mesh_app_hardware_init, // Default SDK platform button processing
    NULL,                   // GATT connection status
    mesh_app_attention,     // attention processing
    NULL,                   // notify period set
    NULL,                   // WICED HCI command
    NULL,                   // LPN sleep
    NULL                    // factory reset
};

uint16_t    last_known_lightness_actual = 0;
uint8_t     last_known_brightness = 0;
uint8_t     attention_brightness = 0;
uint8_t     attention_time = 0;
uint32_t    button_previous_value;
uint64_t    button_pushed_time = 0;
extern wiced_platform_button_config_t platform_button[];

wiced_timer_t attention_timer;
static void attention_timer_cb(TIMER_PARAM_TYPE arg);

/******************************************************
 *               Function Definitions
 ******************************************************/
void mesh_app_init(wiced_bool_t is_provisioned)
{
#if 0
    // Set Debug trace level for mesh_models_lib and mesh_provisioner_lib
    wiced_bt_mesh_models_set_trace_level(WICED_BT_MESH_CORE_TRACE_INFO);
#endif
#if 0
    // Set Debug trace level for all modules but Info level for CORE_AES_CCM module
    wiced_bt_mesh_core_set_trace_level(WICED_BT_MESH_CORE_TRACE_FID_ALL, WICED_BT_MESH_CORE_TRACE_DEBUG);
    wiced_bt_mesh_core_set_trace_level(WICED_BT_MESH_CORE_TRACE_FID_CORE_AES_CCM, WICED_BT_MESH_CORE_TRACE_INFO);
#endif
    wiced_bt_cfg_settings.device_name = (uint8_t *)"Smart Light";
    wiced_bt_cfg_settings.gatt_cfg.appearance = APPEARANCE_LIGHT_CEILING;

    // Adv Data is fixed. Spec allows to put URI, Name, Appearance and Tx Power in the Scan Response Data.
    if (!is_provisioned)
    {
        wiced_bt_ble_advert_elem_t  adv_elem[3];
        uint8_t                     buf[2];
        uint8_t                     num_elem = 0;

        adv_elem[num_elem].advert_type = BTM_BLE_ADVERT_TYPE_NAME_COMPLETE;
        adv_elem[num_elem].len         = (uint16_t)strlen((const char*)wiced_bt_cfg_settings.device_name);
        adv_elem[num_elem].p_data      = wiced_bt_cfg_settings.device_name;
        num_elem++;

        adv_elem[num_elem].advert_type = BTM_BLE_ADVERT_TYPE_APPEARANCE;
        adv_elem[num_elem].len         = 2;
        buf[0]                         = (uint8_t)wiced_bt_cfg_settings.gatt_cfg.appearance;
        buf[1]                         = (uint8_t)(wiced_bt_cfg_settings.gatt_cfg.appearance >> 8);
        adv_elem[num_elem].p_data      = buf;
        num_elem++;

        wiced_bt_mesh_set_raw_scan_response_data(num_elem, adv_elem);
    }
    led_control_init(LED_CONTROL_TYPE_LEVEL);

    wiced_init_timer(&attention_timer, attention_timer_cb, 0, WICED_SECONDS_PERIODIC_TIMER);

    wiced_bt_mesh_model_light_lc_server_init(MESH_LIGHT_LC_SERVER_ELEMENT_INDEX, mesh_app_message_handler, is_provisioned);
}

void mesh_app_hardware_init(void)
{
    /* Configure buttons available on the platform */
#if defined(CYW20706A2)
    wiced_hal_gpio_configure_pin(WICED_GPIO_BUTTON, WICED_GPIO_BUTTON_SETTINGS(GPIO_EN_INT_BOTH_EDGE), WICED_GPIO_BUTTON_DEFAULT_STATE);
    wiced_hal_gpio_register_pin_for_interrupt(WICED_GPIO_BUTTON, button_interrupt_handler, NULL);
#else
    wiced_platform_register_button_callback(WICED_PLATFORM_BUTTON_1, button_interrupt_handler, NULL, GPIO_EN_INT_BOTH_EDGE);
    button_previous_value = platform_button[WICED_PLATFORM_BUTTON_1].default_state;
#endif
}


/*
 * Mesh library requests to alert user for "time" seconds.
 */
void mesh_app_attention(uint8_t element_idx, uint8_t time)
{
    WICED_BT_TRACE("smart light attention:%d sec\n", time);

    // If time is zero, stop alerting and restore the last known brightness
    if (time == 0)
    {
        wiced_stop_timer(&attention_timer);
        led_control_set_brighness_level(last_known_brightness);
        return;
    }
    wiced_start_timer(&attention_timer, 1);
    attention_time = time;
    attention_brightness = (last_known_brightness != 0) ? 0 : 100;
    led_control_set_brighness_level(attention_brightness);
}

/*
 * Attention timer callback is executed every second while user needs to be alerted.
 * Just switch brightness between 0 and 100%
 */
void attention_timer_cb(TIMER_PARAM_TYPE arg)
{
    WICED_BT_TRACE("dimmable light attention timeout:%d\n", attention_time);

    if (--attention_time == 0)
    {
        wiced_stop_timer(&attention_timer);
        led_control_set_brighness_level(last_known_brightness);
        return;
    }
    attention_brightness = (attention_brightness == 0) ? 100 : 0;
    led_control_set_brighness_level(attention_brightness);
}

/*
 * Process event received from the models library.
 */
void mesh_app_message_handler(uint8_t element_idx, uint16_t event, void *p_data)
{
    switch (event)
    {
    case WICED_BT_MESH_LIGHT_LIGHTNESS_STATUS:
        mesh_app_process_level_status(element_idx, (wiced_bt_mesh_light_lightness_status_t *)p_data);
        break;

    case WICED_BT_MESH_SENSOR_STATUS:
        mesh_app_process_sensor_status(element_idx, (wiced_bt_mesh_sensor_status_data_t *)p_data);
        break;

    default:
        WICED_BT_TRACE("smart light unknown msg:%d\n", event);
        break;
    }
}

/*
 * Command from the level client is received to set the new level
 */
void mesh_app_process_level_status(uint8_t element_idx, wiced_bt_mesh_light_lightness_status_t *p_status)
{
    WICED_BT_TRACE("mesh light srv set level element:%d present actual:%d linear:%d remaining_time:%d\n",
        element_idx, p_status->lightness_actual_present, p_status->lightness_linear_present, p_status->remaining_time);

    last_known_lightness_actual = p_status->lightness_actual_present;
    last_known_brightness       = (uint8_t)((uint32_t)p_status->lightness_actual_present * 100 / 65535);
    led_control_set_brighness_level(last_known_brightness);

    // If we were alerting user, stop it.
    wiced_stop_timer(&attention_timer);
}

void mesh_app_process_sensor_status(uint8_t element_idx, wiced_bt_mesh_sensor_status_data_t *p_data)
{

}

/*
 * Process interrupts from the button.
 */
void button_interrupt_handler(void* user_data, uint8_t pin)
{
    uint32_t value = wiced_hal_gpio_get_pin_input_status(pin);
    uint32_t current_time = wiced_bt_mesh_core_get_tick_count();
    uint32_t button_pushed_duration;

    if (value == button_previous_value)
    {
        WICED_BT_TRACE("interrupt_handler: duplicate pin:%d value:%d current_time:%d\n", pin, value, current_time);
        return;
    }
    button_previous_value = value;

    WICED_BT_TRACE("interrupt_handler: pin:%d value:%d current_time:%d\n", pin, value, current_time);

    if (value == platform_button[WICED_PLATFORM_BUTTON_1].button_pressed_value)
    {
        button_pushed_time = current_time;
        return;
    }
    // button is released
    button_pushed_duration = current_time - button_pushed_time;
    if (button_pushed_duration < 5000)
    {
        process_button_push(MESH_LIGHT_LC_CONTROL_ELEMENT_INDEX);
    }
    else
    {
        // More than 5 seconds means factory reset
        mesh_application_factory_reset();
    }
}

void process_button_push(uint8_t element_idx)
{
    wiced_bt_mesh_onoff_set_data_t set_data = { 0 };

    // if we are in the On state, send message to Off.  Otherwise send On.
    set_data.onoff = !(last_known_lightness_actual == mesh_light_lc_lightness_on);

    wiced_bt_mesh_model_light_lc_onoff_changed(element_idx, &set_data);
}