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/*
* SPDX-FileCopyrightText: 2021-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Unlicense OR CC0-1.0
*/
#include "esp_log.h"
#include "nvs_flash.h"
/* BLE */
#include "nimble/nimble_port.h"
#include "nimble/nimble_port_freertos.h"
#include "host/ble_hs.h"
#include "host/util/util.h"
#include "console/console.h"
#include "services/gap/ble_svc_gap.h"
#include "phy_prph.h"
static uint8_t ext_adv_pattern_1M[] = {
0x02, 0x01, 0x06,
0x03, 0x03, 0xab, 0xcd,
0x03, 0x03, 0xAB, 0xF2,
0x0e, 0X09, 'b', 'l', 'e', 'p', 'r', 'p', 'h', '-', 'p', 'h', 'y', '-', '1', 'M',
};
static uint8_t ext_adv_pattern_2M[] = {
0x02, 0x01, 0x06,
0x03, 0x03, 0xab, 0xcd,
0x03, 0x03, 0xAB, 0xF2,
0x0e, 0X09, 'b', 'l', 'e', 'p', 'r', 'p', 'h', '-', 'p', 'h', 'y', '-', '2', 'M',
};
static uint8_t ext_adv_pattern_coded[] = {
0x02, 0x01, 0x06,
0x03, 0x03, 0xab, 0xcd,
0x03, 0x03, 0xAB, 0xF2,
0x11, 0X09, 'b', 'l', 'e', 'p', 'r', 'p', 'h', '-', 'p', 'h', 'y', '-', 'c', 'o', 'd', 'e',
'd',
};
static const char *tag = "NimBLE_BLE_PHY_PRPH";
static int bleprph_gap_event(struct ble_gap_event *event, void *arg);
static uint8_t own_addr_type;
static uint8_t s_current_phy;
void ble_store_config_init(void);
/* Set default LE PHY before establishing connection */
void set_default_le_phy(uint8_t tx_phys_mask, uint8_t rx_phys_mask)
{
int rc = ble_gap_set_prefered_default_le_phy(tx_phys_mask, rx_phys_mask);
if (rc == 0) {
MODLOG_DFLT(INFO, "Default LE PHY set successfully");
} else {
MODLOG_DFLT(ERROR, "Failed to set default LE PHY");
}
}
/**
* Logs information about a connection to the console.
*/
static void
bleprph_print_conn_desc(struct ble_gap_conn_desc *desc)
{
MODLOG_DFLT(INFO, "handle=%d our_ota_addr_type=%d our_ota_addr=",
desc->conn_handle, desc->our_ota_addr.type);
print_addr(desc->our_ota_addr.val);
MODLOG_DFLT(INFO, " our_id_addr_type=%d our_id_addr=",
desc->our_id_addr.type);
print_addr(desc->our_id_addr.val);
MODLOG_DFLT(INFO, " peer_ota_addr_type=%d peer_ota_addr=",
desc->peer_ota_addr.type);
print_addr(desc->peer_ota_addr.val);
MODLOG_DFLT(INFO, " peer_id_addr_type=%d peer_id_addr=",
desc->peer_id_addr.type);
print_addr(desc->peer_id_addr.val);
MODLOG_DFLT(INFO, " conn_itvl=%d conn_latency=%d supervision_timeout=%d "
"encrypted=%d authenticated=%d bonded=%d\n",
desc->conn_itvl, desc->conn_latency,
desc->supervision_timeout,
desc->sec_state.encrypted,
desc->sec_state.authenticated,
desc->sec_state.bonded);
}
static struct os_mbuf *
ext_get_data(uint8_t ext_adv_pattern[], int size)
{
struct os_mbuf *data;
int rc;
data = os_msys_get_pkthdr(size, 0);
assert(data);
rc = os_mbuf_append(data, ext_adv_pattern, size);
assert(rc == 0);
return data;
}
/**
* Enables advertising with the following parameters:
* o General discoverable mode.
* o Undirected connectable mode.
*/
static void
ext_bleprph_advertise(void)
{
struct ble_gap_ext_adv_params params;
struct os_mbuf *data = NULL;
uint8_t instance = 1;
int rc;
/* use defaults for non-set params */
memset (¶ms, 0, sizeof(params));
if (s_current_phy == BLE_HCI_LE_PHY_1M_PREF_MASK) {
params.scannable = 1;
params.legacy_pdu = 1;
}
/*enable connectable advertising for all Phy*/
params.connectable = 1;
/* advertise using random addr */
params.own_addr_type = BLE_OWN_ADDR_PUBLIC;
/* Set current phy; get mbuf for scan rsp data; fill mbuf with scan rsp data */
switch (s_current_phy) {
case BLE_HCI_LE_PHY_1M_PREF_MASK:
params.primary_phy = BLE_HCI_LE_PHY_1M;
params.secondary_phy = BLE_HCI_LE_PHY_1M;
data = ext_get_data(ext_adv_pattern_1M, sizeof(ext_adv_pattern_1M));
params.sid = 0;
break;
case BLE_HCI_LE_PHY_2M_PREF_MASK:
params.primary_phy = BLE_HCI_LE_PHY_1M;
params.secondary_phy = BLE_HCI_LE_PHY_2M;
data = ext_get_data(ext_adv_pattern_2M, sizeof(ext_adv_pattern_2M));
params.sid = 1;
break;
case BLE_HCI_LE_PHY_CODED_PREF_MASK:
params.primary_phy = BLE_HCI_LE_PHY_CODED;
params.secondary_phy = BLE_HCI_LE_PHY_CODED;
data = ext_get_data(ext_adv_pattern_coded, sizeof(ext_adv_pattern_coded));
params.sid = 2;
break;
}
params.itvl_min = BLE_GAP_ADV_FAST_INTERVAL1_MIN;
params.itvl_max = BLE_GAP_ADV_FAST_INTERVAL1_MIN;
/* configure instance 0 */
rc = ble_gap_ext_adv_configure(instance, ¶ms, NULL,
bleprph_gap_event, NULL);
assert (rc == 0);
rc = ble_gap_ext_adv_set_data(instance, data);
assert (rc == 0);
/* start advertising */
rc = ble_gap_ext_adv_start(instance, 0, 0);
assert (rc == 0);
}
/**
* The nimble host executes this callback when a GAP event occurs. The
* application associates a GAP event callback with each connection that forms.
* bleprph uses the same callback for all connections.
*
* @param event The type of event being signalled.
* @param ctxt Various information pertaining to the event.
* @param arg Application-specified argument; unused by
* bleprph.
*
* @return 0 if the application successfully handled the
* event; nonzero on failure. The semantics
* of the return code is specific to the
* particular GAP event being signalled.
*/
static int
bleprph_gap_event(struct ble_gap_event *event, void *arg)
{
struct ble_gap_conn_desc desc;
int rc;
switch (event->type) {
case BLE_GAP_EVENT_LINK_ESTAB:
/* A new connection was established or a connection attempt failed. */
MODLOG_DFLT(INFO, "connection %s; status=%d ",
event->link_estab.status == 0 ? "established" : "failed",
event->link_estab.status);
if (event->link_estab.status == 0) {
rc = ble_gap_conn_find(event->link_estab.conn_handle, &desc);
assert(rc == 0);
bleprph_print_conn_desc(&desc);
}
MODLOG_DFLT(INFO, "\n");
if (event->link_estab.status != 0) {
/* Connection failed; resume advertising. */
ext_bleprph_advertise();
}
return 0;
case BLE_GAP_EVENT_DISCONNECT:
MODLOG_DFLT(INFO, "disconnect; reason=%d ", event->disconnect.reason);
bleprph_print_conn_desc(&event->disconnect.conn);
MODLOG_DFLT(INFO, "\n");
/* Connection terminated; resume advertising. */
switch (s_current_phy) {
case BLE_HCI_LE_PHY_1M_PREF_MASK:
/* Setting current phy to create connection on 2M PHY */
s_current_phy = BLE_HCI_LE_PHY_2M_PREF_MASK;
break;
case BLE_HCI_LE_PHY_2M_PREF_MASK:
/* Setting current phy to create connection on CODED PHY */
s_current_phy = BLE_HCI_LE_PHY_CODED_PREF_MASK;
break;
case BLE_HCI_LE_PHY_CODED_PREF_MASK:
return 0;
default:
return 0;
}
ext_bleprph_advertise();
return 0;
case BLE_GAP_EVENT_CONN_UPDATE:
/* The central has updated the connection parameters. */
MODLOG_DFLT(INFO, "connection updated; status=%d ",
event->conn_update.status);
rc = ble_gap_conn_find(event->conn_update.conn_handle, &desc);
assert(rc == 0);
bleprph_print_conn_desc(&desc);
MODLOG_DFLT(INFO, "\n");
return 0;
case BLE_GAP_EVENT_ADV_COMPLETE:
MODLOG_DFLT(INFO, "advertise complete; reason=%d",
event->adv_complete.reason);
return 0;
}
return 0;
}
static void
bleprph_on_reset(int reason)
{
MODLOG_DFLT(ERROR, "Resetting state; reason=%d\n", reason);
}
static void
bleprph_on_sync(void)
{
int rc;
uint8_t all_phy;
/* Make sure we have proper identity address set (public preferred) */
rc = ble_hs_util_ensure_addr(0);
assert(rc == 0);
/* Figure out address to use while advertising (no privacy for now) */
rc = ble_hs_id_infer_auto(0, &own_addr_type);
if (rc != 0) {
MODLOG_DFLT(ERROR, "error determining address type; rc=%d\n", rc);
return;
}
/* Printing ADDR */
uint8_t addr_val[6] = {0};
rc = ble_hs_id_copy_addr(own_addr_type, addr_val, NULL);
MODLOG_DFLT(INFO, "Device Address: ");
print_addr(addr_val);
MODLOG_DFLT(INFO, "\n");
s_current_phy = BLE_HCI_LE_PHY_1M_PREF_MASK;
all_phy = BLE_HCI_LE_PHY_1M_PREF_MASK | BLE_HCI_LE_PHY_2M_PREF_MASK | BLE_HCI_LE_PHY_CODED_PREF_MASK;
set_default_le_phy(all_phy, all_phy);
/* Begin advertising. */
ext_bleprph_advertise();
}
void bleprph_host_task(void *param)
{
ESP_LOGI(tag, "BLE Host Task Started");
/* This function will return only when nimble_port_stop() is executed */
nimble_port_run();
nimble_port_freertos_deinit();
}
void
app_main(void)
{
int rc;
/* Initialize NVS — it is used to store PHY calibration data */
esp_err_t ret = nvs_flash_init();
if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
ESP_ERROR_CHECK(nvs_flash_erase());
ret = nvs_flash_init();
}
ESP_ERROR_CHECK(ret);
//ESP_ERROR_CHECK(esp_nimble_hci_and_controller_init());
ret = nimble_port_init();
if (ret != ESP_OK) {
MODLOG_DFLT(ERROR, "Failed to init nimble %d \n", ret);
return;
}
/* Initialize the NimBLE host configuration. */
ble_hs_cfg.reset_cb = bleprph_on_reset;
ble_hs_cfg.sync_cb = bleprph_on_sync;
ble_hs_cfg.gatts_register_cb = gatt_svr_register_cb;
ble_hs_cfg.store_status_cb = ble_store_util_status_rr;
ble_hs_cfg.sm_io_cap = CONFIG_EXAMPLE_IO_TYPE;
#ifdef CONFIG_EXAMPLE_BONDING
ble_hs_cfg.sm_bonding = 1;
#endif
#ifdef CONFIG_EXAMPLE_MITM
ble_hs_cfg.sm_mitm = 1;
#endif
#ifdef CONFIG_EXAMPLE_USE_SC
ble_hs_cfg.sm_sc = 1;
#else
ble_hs_cfg.sm_sc = 0;
#endif
#ifdef CONFIG_EXAMPLE_BONDING
ble_hs_cfg.sm_our_key_dist = 1;
ble_hs_cfg.sm_their_key_dist = 1;
#endif
rc = gatt_svr_init_le_phy();
assert(rc == 0);
/* Set the default device name. */
rc = ble_svc_gap_device_name_set("bleprph-phy");
assert(rc == 0);
/* XXX Need to have template for store */
ble_store_config_init();
nimble_port_freertos_init(bleprph_host_task);
/* Initialize command line interface to accept input from user */
rc = scli_init();
if (rc != ESP_OK) {
ESP_LOGE(tag, "scli_init() failed");
}
}
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