NimbLE: Added multi advertising example

examples/bluetooth/.build-test-rules.yml

@@ -180,6 +180,16 @@ examples/bluetooth/nimble/ble_l2cap_coc:
       temporary: true
       reason: The runner doesn't support yet
 
+examples/bluetooth/nimble/ble_multi_adv:
+  enable:
+    - if: IDF_TARGET in ["esp32c2", "esp32c3", "esp32c6", "esp32h2", "esp32h4", "esp32s3"]
+      temporary: true
+      reason: the other targets are not tested yet
+  disable_test:
+    - if: IDF_TARGET in ["esp32"]
+      temporary: true
+      reason: The runner doesn't support yet
+
 examples/bluetooth/nimble/ble_periodic_adv:
   enable:
     - if: IDF_TARGET in ["esp32c2", "esp32c3", "esp32c6" , "esp32s3", "esp32h2", "esp32h4" ]

examples/bluetooth/nimble/ble_multi_adv/CMakeLists.txt

@@ -0,0 +1,8 @@
+# The following lines of boilerplate have to be in your project's
+# CMakeLists in this exact order for cmake to work correctly
+cmake_minimum_required(VERSION 3.16)
+
+set(EXTRA_COMPONENT_DIRS $ENV{IDF_PATH}/examples/bluetooth/nimble/common/nimble_peripheral_utils)
+
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+project(ble_multi_adv)

examples/bluetooth/nimble/ble_multi_adv/README.md

@@ -0,0 +1,74 @@
+| Supported Targets | ESP32-C2 | ESP32-C3 | ESP32-C6 | ESP32-H2 | ESP32-H4 | ESP32-S3 |
+| ----------------- | -------- | -------- | -------- | -------- | -------- | -------- |
+
+# BLE Multi Adv Example
+
+(See the README.md file in the upper level 'examples' directory for more information about examples.)
+
+This example support legacy as well as extended advertisement for all phy. For multi advertising, random addresses are generated for each instance.
+
+It starts 4 types of advertising:
+* Non connectable extended
+* Connectable extended
+* Scannable legacy
+* Legacy withe specified duration(5 sec)
+
+## How to Use Example
+
+Before project configuration and build, be sure to set the correct chip target using:
+
+```bash
+idf.py set-target <chip_name>
+```
+
+### Configure the Project
+
+Open the project configuration menu:
+```
+idf.py menuconfig
+```
+
+To configure number of advertising instances:
+
+* Component config → Bluetooth → NimBLE Options → Enable BLE 5 feature → Maximum number of extended advertising instances
+
+### Hardware Required
+
+* A development board with ESP32-C3 SoC,ESP32-S3/ESP32-H4/ESP32-C2 SoC and BLE5.0 supported chips (e.g., ESP32-C3-DevKitC, etc.)
+* A USB cable for Power supply and programming
+
+See [Development Boards](https://www.espressif.com/en/products/devkits) for more information about it.
+
+### Build and Flash
+
+Run `idf.py -p PORT flash monitor` to build, flash and monitor the project.
+
+(To exit the serial monitor, type ``Ctrl-]``.)
+
+See the [Getting Started Guide](https://idf.espressif.com/) for full steps to configure and use ESP-IDF to build projects.
+
+
+## Example Output
+
+```
+I (404) NimBLE_MULTI_ADV: BLE Host Task Started
+
+I (414) NimBLE_MULTI_ADV: Instance 0 started
+I (414) NimBLE_MULTI_ADV: Instance 1 started
+I (434) NimBLE_MULTI_ADV: Instance 2 started
+I (444) NimBLE_MULTI_ADV: Instance 3 started
+
+I (454) main_task: Returned from app_main()
+I (5404) NimBLE: advertise complete; reason=13
+I (5404) NimBLE_MULTI_ADV: In ble_legacy_duration_cb, instance = 3
+
+I (5404) NimBLE_MULTI_ADV: Instance 3 started
+I (10384) NimBLE: advertise complete; reason=13
+I (10384) NimBLE_MULTI_ADV: In ble_legacy_duration_cb, instance = 3
+
+I (10394) NimBLE_MULTI_ADV: Instance 3 started
+
+```
+## Troubleshooting
+
+For any technical queries, please open an [issue](https://github.com/espressif/esp-idf/issues) on GitHub. We will get back to you soon.

examples/bluetooth/nimble/ble_multi_adv/main/CMakeLists.txt

@@ -0,0 +1,5 @@
+set(srcs "main.c"
+         "gatt_svr.c")
+
+idf_component_register(SRCS "${srcs}"
+                       INCLUDE_DIRS ".")

examples/bluetooth/nimble/ble_multi_adv/main/gatt_svr.c

@@ -0,0 +1,169 @@
+/*
+ * SPDX-FileCopyrightText: 2017-2023 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <assert.h>
+#include <stdio.h>
+#include <string.h>
+#include "host/ble_hs.h"
+#include "host/ble_uuid.h"
+#include "services/gap/ble_svc_gap.h"
+#include "services/gatt/ble_svc_gatt.h"
+#include "multi_adv.h"
+
+static const ble_uuid128_t gatt_svr_svc_uuid =
+    BLE_UUID128_INIT(0x2d, 0x71, 0xa2, 0x59, 0xb4, 0x58, 0xc8, 0x12,
+                     0x99, 0x99, 0x43, 0x95, 0x12, 0x2f, 0x46, 0x59);
+
+/* A characteristic that can be subscribed to */
+static uint16_t gatt_svr_chr_val_handle;
+static const ble_uuid128_t gatt_svr_chr_uuid =
+    BLE_UUID128_INIT(0x00, 0x00, 0x00, 0x00, 0x11, 0x11, 0x11, 0x11,
+                     0x22, 0x22, 0x22, 0x22, 0x33, 0x33, 0x33, 0x33);
+
+/* A custom descriptor */
+static uint8_t gatt_svr_dsc_val;
+static const ble_uuid128_t gatt_svr_dsc_uuid =
+    BLE_UUID128_INIT(0x01, 0x01, 0x01, 0x01, 0x12, 0x12, 0x12, 0x12,
+                     0x23, 0x23, 0x23, 0x23, 0x34, 0x34, 0x34, 0x34);
+
+static int
+gatt_svc_access(uint16_t conn_handle, uint16_t attr_handle,
+                struct ble_gatt_access_ctxt *ctxt,
+                void *arg);
+
+static const struct ble_gatt_svc_def gatt_svr_svcs[] = {
+    {
+        /*** Service ***/
+        .type = BLE_GATT_SVC_TYPE_PRIMARY,
+        .uuid = &gatt_svr_svc_uuid.u,
+        .characteristics = (struct ble_gatt_chr_def[])
+        { {
+                /*** This characteristic can be subscribed to by writing 0x00 and 0x01 to the CCCD ***/
+                .uuid = &gatt_svr_chr_uuid.u,
+                .access_cb = gatt_svc_access,
+                .flags = BLE_GATT_CHR_F_READ | BLE_GATT_CHR_F_WRITE | BLE_GATT_CHR_F_NOTIFY | BLE_GATT_CHR_F_INDICATE,
+                .val_handle = &gatt_svr_chr_val_handle,
+                .descriptors = (struct ble_gatt_dsc_def[]) {
+                    {
+                        .uuid = &gatt_svr_dsc_uuid.u,
+                        .att_flags = BLE_ATT_F_READ,
+                        .access_cb = gatt_svc_access,
+                    }, {
+                        0, /* No more descriptors in this characteristic */
+                    }
+                },
+            }, {
+                0, /* No more characteristics in this service. */
+            }
+        },
+    },
+
+    {
+        0, /* No more services. */
+    },
+};
+
+/**
+ * Access callback whenever a characteristic/descriptor is read or written to.
+ * Here reads and writes need to be handled.
+ * ctxt->op tells weather the operation is read or write and
+ * weather it is on a characteristic or descriptor,
+ * ctxt->dsc->uuid tells which characteristic/descriptor is accessed.
+ * attr_handle give the value handle of the attribute being accessed.
+ * Accordingly do:
+ *     Append the value to ctxt->om if the operation is READ
+ *     Write ctxt->om to the value if the operation is WRITE
+ **/
+static int
+gatt_svc_access(uint16_t conn_handle, uint16_t attr_handle,
+                struct ble_gatt_access_ctxt *ctxt, void *arg)
+{
+    switch (ctxt->op) {
+    case BLE_GATT_ACCESS_OP_READ_CHR:
+        MODLOG_DFLT(INFO, "Characteristic read; conn_handle=%d attr_handle=%d\n",
+                    conn_handle, attr_handle);
+        return 0;
+
+    case BLE_GATT_ACCESS_OP_WRITE_CHR:
+        MODLOG_DFLT(INFO, "Characteristic write; conn_handle=%d attr_handle=%d",
+                    conn_handle, attr_handle);
+        return 0;
+
+    case BLE_GATT_ACCESS_OP_READ_DSC:
+        MODLOG_DFLT(INFO, "Descriptor read; conn_handle=%d attr_handle=%d\n",
+                    conn_handle, attr_handle);
+        return 0;
+
+    case BLE_GATT_ACCESS_OP_WRITE_DSC:
+        goto unknown;
+
+    default:
+        goto unknown;
+    }
+
+unknown:
+    /* Unknown characteristic/descriptor;
+     * The NimBLE host should not have called this function;
+     */
+    assert(0);
+    return BLE_ATT_ERR_UNLIKELY;
+}
+
+void
+gatt_svr_register_cb(struct ble_gatt_register_ctxt *ctxt, void *arg)
+{
+    char buf[BLE_UUID_STR_LEN];
+
+    switch (ctxt->op) {
+    case BLE_GATT_REGISTER_OP_SVC:
+        MODLOG_DFLT(DEBUG, "registered service %s with handle=%d\n",
+                    ble_uuid_to_str(ctxt->svc.svc_def->uuid, buf),
+                    ctxt->svc.handle);
+        break;
+
+    case BLE_GATT_REGISTER_OP_CHR:
+        MODLOG_DFLT(DEBUG, "registering characteristic %s with "
+                    "def_handle=%d val_handle=%d\n",
+                    ble_uuid_to_str(ctxt->chr.chr_def->uuid, buf),
+                    ctxt->chr.def_handle,
+                    ctxt->chr.val_handle);
+        break;
+
+    case BLE_GATT_REGISTER_OP_DSC:
+        MODLOG_DFLT(DEBUG, "registering descriptor %s with handle=%d\n",
+                    ble_uuid_to_str(ctxt->dsc.dsc_def->uuid, buf),
+                    ctxt->dsc.handle);
+        break;
+
+    default:
+        assert(0);
+        break;
+    }
+}
+
+int
+gatt_svr_init(void)
+{
+    int rc;
+
+    ble_svc_gap_init();
+    ble_svc_gatt_init();
+
+    rc = ble_gatts_count_cfg(gatt_svr_svcs);
+    if (rc != 0) {
+        return rc;
+    }
+
+    rc = ble_gatts_add_svcs(gatt_svr_svcs);
+    if (rc != 0) {
+        return rc;
+    }
+
+    /* Setting a value for the read-only descriptor */
+    gatt_svr_dsc_val = 0x99;
+
+    return 0;
+}