<commit_before>/*
   This example code is in the Public Domain (or CC0 licensed, at your option.)

   Unless required by applicable law or agreed to in writing, this
   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
   CONDITIONS OF ANY KIND, either express or implied.
*/

/********************************************************************************
*
* This file is for gatt server. It can send adv data, and get connected by client.
*
*********************************************************************************/


 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 #include "freertos/event_groups.h"
 #include "esp_system.h"
 #include "esp_log.h"
 #include "nvs_flash.h"
 #include "esp_bt.h"

#include "esp_gap_ble_api.h"
#include "esp_gatts_api.h"
#include "esp_bt_main.h"
#include "ble_compatibility_test.h"
#include "esp_gatt_common_api.h"

#define DEBUG_ON  0

#if DEBUG_ON
#define EXAMPLE_DEBUG ESP_LOGI
#else
#define EXAMPLE_DEBUG( tag, format, ... )  
#endif

#define EXAMPLE_TAG "BLE_COMP"

#define PROFILE_NUM                 1
#define PROFILE_APP_IDX             0
#define ESP_APP_ID                  0x55
#define SAMPLE_DEVICE_NAME          "BLE_COMP_TEST"
#define SVC_INST_ID                 0

/* The max length of characteristic value. When the gatt client write or prepare write, 
*  the data length must be less than GATTS_EXAMPLE_CHAR_VAL_LEN_MAX. 
*/
#define GATTS_EXAMPLE_CHAR_VAL_LEN_MAX 500
#define LONG_CHAR_VAL_LEN           500
#define SHORT_CHAR_VAL_LEN          10
#define GATTS_NOTIFY_FIRST_PACKET_LEN_MAX 20

#define PREPARE_BUF_MAX_SIZE        1024
#define CHAR_DECLARATION_SIZE       (sizeof(uint8_t))

#define ADV_CONFIG_FLAG             (1 << 0)
#define SCAN_RSP_CONFIG_FLAG        (1 << 1)

static uint8_t adv_config_done       = 0;

uint16_t gatt_db_handle_table[HRS_IDX_NB];

typedef struct {
    uint8_t                 *prepare_buf;
    int                     prepare_len;
} prepare_type_env_t;

static prepare_type_env_t prepare_write_env;

//#define CONFIG_SET_RAW_ADV_DATA
#ifdef CONFIG_SET_RAW_ADV_DATA
static uint8_t raw_adv_data[] = {
        /* flags */
        0x02, 0x01, 0x06,
        /* tx power*/
        0x02, 0x0a, 0xeb,
        /* service uuid */
        0x03, 0x03, 0xFF, 0x00,
        /* device name */
        0x0E, 0x09, 'B', 'L', 'E', '_', 'C', 'O','M', 'P', '_', 'T','E', 'S', 'T'
};
static uint8_t raw_scan_rsp_data[] = {
        /* flags */
        0x02, 0x01, 0x06,
        /* tx power */
        0x02, 0x0a, 0xeb,
        /* service uuid */
        0x03, 0x03, 0xFF,0x00
};

#else
static uint8_t service_uuid[16] = {
    /* LSB <--------------------------------------------------------------------------------> MSB */
    //first uuid, 16bit, [12],[13] is the value
    0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00, 0x00, 0x80, 0x00, 0x10, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00,
};

/* The length of adv data must be less than 31 bytes */
static esp_ble_adv_data_t adv_data = {
    .set_scan_rsp        = false,
    .include_name        = true,
    .include_txpower     = true,
    .min_interval        = 0x20,
    .max_interval        = 0x40,
    .appearance          = 0x00,
    .manufacturer_len    = 0,    //TEST_MANUFACTURER_DATA_LEN,
    .p_manufacturer_data = NULL, //test_manufacturer,
    .service_data_len    = 0,
    .p_service_data      = NULL,
    .service_uuid_len    = sizeof(service_uuid),
    .p_service_uuid      = service_uuid,
    .flag = (ESP_BLE_ADV_FLAG_GEN_DISC | ESP_BLE_ADV_FLAG_BREDR_NOT_SPT),
};

// scan response data
static esp_ble_adv_data_t scan_rsp_data = {
    .set_scan_rsp        = true,
    .include_name        = true,
    .include_txpower     = true,
    .min_interval        = 0x20,
    .max_interval        = 0x40,
    .appearance          = 0x00,
    .manufacturer_len    = 0, //TEST_MANUFACTURER_DATA_LEN,
    .p_manufacturer_data = NULL, //&test_manufacturer[0],
    .service_data_len    = 0,
    .p_service_data      = NULL,
    .service_uuid_len    = 16,
    .p_service_uuid      = service_uuid,
    .flag = (ESP_BLE_ADV_FLAG_GEN_DISC | ESP_BLE_ADV_FLAG_BREDR_NOT_SPT),
};
#endif /* CONFIG_SET_RAW_ADV_DATA */

static esp_ble_adv_params_t adv_params = {
    .adv_int_min         = 0x40,
    .adv_int_max         = 0x40,
    .adv_type            = ADV_TYPE_IND,
    .own_addr_type       = BLE_ADDR_TYPE_PUBLIC,
    .channel_map         = ADV_CHNL_ALL,
    .adv_filter_policy   = ADV_FILTER_ALLOW_SCAN_ANY_CON_ANY,
};

struct gatts_profile_inst {
    esp_gatts_cb_t gatts_cb;
    uint16_t gatts_if;
    uint16_t app_id;
    uint16_t conn_id;
    uint16_t service_handle;
    esp_gatt_srvc_id_t service_id;
    uint16_t char_handle;
    esp_bt_uuid_t char_uuid;
    esp_gatt_perm_t perm;
    esp_gatt_char_prop_t property;
    uint16_t descr_handle;
    esp_bt_uuid_t descr_uuid;
};

static void gatts_profile_event_handler(esp_gatts_cb_event_t event,
					esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param);

/* One gatt-based profile one app_id and one gatts_if, this array will store the gatts_if returned by ESP_GATTS_REG_EVT */
static struct gatts_profile_inst heart_rate_profile_tab[PROFILE_NUM] = {
    [PROFILE_APP_IDX] = {
        .gatts_cb = gatts_profile_event_handler,
        .gatts_if = ESP_GATT_IF_NONE,       /* Not get the gatt_if, so initial is ESP_GATT_IF_NONE */
    },
};

/* Service */
static const uint16_t GATTS_SERVICE_UUID_TEST      = 0x00FF;
static const uint16_t CHAR_1_SHORT_WR              = 0xFF01;
static const uint16_t CHAR_2_LONG_WR               = 0xFF02;
static const uint16_t CHAR_3_SHORT_NOTIFY          = 0xFF03;

static const uint16_t primary_service_uuid         = ESP_GATT_UUID_PRI_SERVICE;
static const uint16_t character_declaration_uuid   = ESP_GATT_UUID_CHAR_DECLARE;
static const uint16_t character_client_config_uuid = ESP_GATT_UUID_CHAR_CLIENT_CONFIG;
static const uint16_t character_user_description   = ESP_GATT_UUID_CHAR_DESCRIPTION;
static const uint8_t char_prop_read                =  ESP_GATT_CHAR_PROP_BIT_READ;
static const uint8_t char_prop_write               = ESP_GATT_CHAR_PROP_BIT_WRITE;
static const uint8_t char_prop_notify              = ESP_GATT_CHAR_PROP_BIT_NOTIFY;
static const uint8_t char_prop_read_write   = ESP_GATT_CHAR_PROP_BIT_WRITE | ESP_GATT_CHAR_PROP_BIT_READ;
static const uint8_t char_prop_read_write_notify   = ESP_GATT_CHAR_PROP_BIT_WRITE | ESP_GATT_CHAR_PROP_BIT_READ | ESP_GATT_CHAR_PROP_BIT_NOTIFY;
static const uint8_t char1_name[]  = "Char_1_Short_WR";
static const uint8_t char2_name[]  = "Char_2_Long_WR";
static const uint8_t char3_name[]  = "Char_3_Short_Notify";
static const uint8_t char_ccc[2]   = {0x00, 0x00};
static const uint8_t char_value[4] = {0x11, 0x22, 0x33, 0x44};


/* Full Database Description - Used to add attributes into the database */
static const esp_gatts_attr_db_t gatt_db[HRS_IDX_NB] =
{
    // Service Declaration
    [IDX_SVC]        =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&primary_service_uuid, ESP_GATT_PERM_READ,
      sizeof(uint16_t), sizeof(GATTS_SERVICE_UUID_TEST), (uint8_t *)&GATTS_SERVICE_UUID_TEST}},

    /* Characteristic Declaration */
    [IDX_CHAR_A]     =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_declaration_uuid, ESP_GATT_PERM_READ,
      CHAR_DECLARATION_SIZE, CHAR_DECLARATION_SIZE, (uint8_t *)&char_prop_read_write}},

    /* Characteristic Value */
    [IDX_CHAR_VAL_A] =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&CHAR_1_SHORT_WR, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE | ESP_GATT_PERM_READ_ENC_MITM,<commit_msg>example: Fix unused identifier warnings<commit_after>/*
   This example code is in the Public Domain (or CC0 licensed, at your option.)

   Unless required by applicable law or agreed to in writing, this
   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
   CONDITIONS OF ANY KIND, either express or implied.
*/

/********************************************************************************
*
* This file is for gatt server. It can send adv data, and get connected by client.
*
*********************************************************************************/


 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 #include "freertos/event_groups.h"
 #include "esp_system.h"
 #include "esp_log.h"
 #include "nvs_flash.h"
 #include "esp_bt.h"

#include "esp_gap_ble_api.h"
#include "esp_gatts_api.h"
#include "esp_bt_main.h"
#include "ble_compatibility_test.h"
#include "esp_gatt_common_api.h"

#define DEBUG_ON  0

#if DEBUG_ON
#define EXAMPLE_DEBUG ESP_LOGI
#else
#define EXAMPLE_DEBUG( tag, format, ... )  
#endif

#define EXAMPLE_TAG "BLE_COMP"

#define PROFILE_NUM                 1
#define PROFILE_APP_IDX             0
#define ESP_APP_ID                  0x55
#define SAMPLE_DEVICE_NAME          "BLE_COMP_TEST"
#define SVC_INST_ID                 0

/* The max length of characteristic value. When the gatt client write or prepare write, 
*  the data length must be less than GATTS_EXAMPLE_CHAR_VAL_LEN_MAX. 
*/
#define GATTS_EXAMPLE_CHAR_VAL_LEN_MAX 500
#define LONG_CHAR_VAL_LEN           500
#define SHORT_CHAR_VAL_LEN          10
#define GATTS_NOTIFY_FIRST_PACKET_LEN_MAX 20

#define PREPARE_BUF_MAX_SIZE        1024
#define CHAR_DECLARATION_SIZE       (sizeof(uint8_t))

#define ADV_CONFIG_FLAG             (1 << 0)
#define SCAN_RSP_CONFIG_FLAG        (1 << 1)

static uint8_t adv_config_done       = 0;

uint16_t gatt_db_handle_table[HRS_IDX_NB];

typedef struct {
    uint8_t                 *prepare_buf;
    int                     prepare_len;
} prepare_type_env_t;

static prepare_type_env_t prepare_write_env;

//#define CONFIG_SET_RAW_ADV_DATA
#ifdef CONFIG_SET_RAW_ADV_DATA
static uint8_t raw_adv_data[] = {
        /* flags */
        0x02, 0x01, 0x06,
        /* tx power*/
        0x02, 0x0a, 0xeb,
        /* service uuid */
        0x03, 0x03, 0xFF, 0x00,
        /* device name */
        0x0E, 0x09, 'B', 'L', 'E', '_', 'C', 'O','M', 'P', '_', 'T','E', 'S', 'T'
};
static uint8_t raw_scan_rsp_data[] = {
        /* flags */
        0x02, 0x01, 0x06,
        /* tx power */
        0x02, 0x0a, 0xeb,
        /* service uuid */
        0x03, 0x03, 0xFF,0x00
};

#else
static uint8_t service_uuid[16] = {
    /* LSB <--------------------------------------------------------------------------------> MSB */
    //first uuid, 16bit, [12],[13] is the value
    0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00, 0x00, 0x80, 0x00, 0x10, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00,
};

/* The length of adv data must be less than 31 bytes */
static esp_ble_adv_data_t adv_data = {
    .set_scan_rsp        = false,
    .include_name        = true,
    .include_txpower     = true,
    .min_interval        = 0x20,
    .max_interval        = 0x40,
    .appearance          = 0x00,
    .manufacturer_len    = 0,    //TEST_MANUFACTURER_DATA_LEN,
    .p_manufacturer_data = NULL, //test_manufacturer,
    .service_data_len    = 0,
    .p_service_data      = NULL,
    .service_uuid_len    = sizeof(service_uuid),
    .p_service_uuid      = service_uuid,
    .flag = (ESP_BLE_ADV_FLAG_GEN_DISC | ESP_BLE_ADV_FLAG_BREDR_NOT_SPT),
};

// scan response data
static esp_ble_adv_data_t scan_rsp_data = {
    .set_scan_rsp        = true,
    .include_name        = true,
    .include_txpower     = true,
    .min_interval        = 0x20,
    .max_interval        = 0x40,
    .appearance          = 0x00,
    .manufacturer_len    = 0, //TEST_MANUFACTURER_DATA_LEN,
    .p_manufacturer_data = NULL, //&test_manufacturer[0],
    .service_data_len    = 0,
    .p_service_data      = NULL,
    .service_uuid_len    = 16,
    .p_service_uuid      = service_uuid,
    .flag = (ESP_BLE_ADV_FLAG_GEN_DISC | ESP_BLE_ADV_FLAG_BREDR_NOT_SPT),
};
#endif /* CONFIG_SET_RAW_ADV_DATA */

static esp_ble_adv_params_t adv_params = {
    .adv_int_min         = 0x40,
    .adv_int_max         = 0x40,
    .adv_type            = ADV_TYPE_IND,
    .own_addr_type       = BLE_ADDR_TYPE_PUBLIC,
    .channel_map         = ADV_CHNL_ALL,
    .adv_filter_policy   = ADV_FILTER_ALLOW_SCAN_ANY_CON_ANY,
};

struct gatts_profile_inst {
    esp_gatts_cb_t gatts_cb;
    uint16_t gatts_if;
    uint16_t app_id;
    uint16_t conn_id;
    uint16_t service_handle;
    esp_gatt_srvc_id_t service_id;
    uint16_t char_handle;
    esp_bt_uuid_t char_uuid;
    esp_gatt_perm_t perm;
    esp_gatt_char_prop_t property;
    uint16_t descr_handle;
    esp_bt_uuid_t descr_uuid;
};

static void gatts_profile_event_handler(esp_gatts_cb_event_t event,
					esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param);

/* One gatt-based profile one app_id and one gatts_if, this array will store the gatts_if returned by ESP_GATTS_REG_EVT */
static struct gatts_profile_inst heart_rate_profile_tab[PROFILE_NUM] = {
    [PROFILE_APP_IDX] = {
        .gatts_cb = gatts_profile_event_handler,
        .gatts_if = ESP_GATT_IF_NONE,       /* Not get the gatt_if, so initial is ESP_GATT_IF_NONE */
    },
};

/* Service */
static const uint16_t GATTS_SERVICE_UUID_TEST      = 0x00FF;
static const uint16_t CHAR_1_SHORT_WR              = 0xFF01;
static const uint16_t CHAR_2_LONG_WR               = 0xFF02;
static const uint16_t CHAR_3_SHORT_NOTIFY          = 0xFF03;

static const uint16_t primary_service_uuid         = ESP_GATT_UUID_PRI_SERVICE;
static const uint16_t character_declaration_uuid   = ESP_GATT_UUID_CHAR_DECLARE;
static const uint16_t character_client_config_uuid = ESP_GATT_UUID_CHAR_CLIENT_CONFIG;
static const uint16_t character_user_description   = ESP_GATT_UUID_CHAR_DESCRIPTION;
static const uint8_t char_prop_notify              = ESP_GATT_CHAR_PROP_BIT_NOTIFY;
static const uint8_t char_prop_read_write          = ESP_GATT_CHAR_PROP_BIT_WRITE | ESP_GATT_CHAR_PROP_BIT_READ;
static const uint8_t char1_name[]  = "Char_1_Short_WR";
static const uint8_t char2_name[]  = "Char_2_Long_WR";
static const uint8_t char3_name[]  = "Char_3_Short_Notify";
static const uint8_t char_ccc[2]   = {0x00, 0x00};
static const uint8_t char_value[4] = {0x11, 0x22, 0x33, 0x44};


/* Full Database Description - Used to add attributes into the database */
static const esp_gatts_attr_db_t gatt_db[HRS_IDX_NB] =
{
    // Service Declaration
    [IDX_SVC]        =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&primary_service_uuid, ESP_GATT_PERM_READ,
      sizeof(uint16_t), sizeof(GATTS_SERVICE_UUID_TEST), (uint8_t *)&GATTS_SERVICE_UUID_TEST}},

    /* Characteristic Declaration */
    [IDX_CHAR_A]     =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_declaration_uuid, ESP_GATT_PERM_READ,
      CHAR_DECLARATION_SIZE, CHAR_DECLARATION_SIZE, (uint8_t *)&char_prop_read_write}},

    /* Characteristic Value */
    [IDX_CHAR_VAL_A] =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&CHAR_1_SHORT_WR, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE | ESP_GATT_PERM_READ_ENC_MITM,
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