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https://github.com/espressif/esp-idf.git
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5a0aa4bd8e
The existing example has some issues which are now fixed. 1. Original example had legacy_pdu set which was not causing the PHY to actually change. Fixed this 2. Added a way to initiate connection directly on 2M or Coded Phy.
363 lines
11 KiB
C
363 lines
11 KiB
C
/*
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* SPDX-FileCopyrightText: 2021-2023 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Unlicense OR CC0-1.0
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*/
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#include "esp_log.h"
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#include "nvs_flash.h"
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/* BLE */
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#include "nimble/nimble_port.h"
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#include "nimble/nimble_port_freertos.h"
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#include "host/ble_hs.h"
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#include "host/util/util.h"
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#include "console/console.h"
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#include "services/gap/ble_svc_gap.h"
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#include "phy_prph.h"
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static uint8_t ext_adv_pattern_1M[] = {
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0x02, 0x01, 0x06,
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0x03, 0x03, 0xab, 0xcd,
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0x03, 0x03, 0xAB, 0xF2,
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0x0e, 0X09, 'b', 'l', 'e', 'p', 'r', 'p', 'h', '-', 'p', 'h', 'y', '-', '1', 'M',
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};
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static uint8_t ext_adv_pattern_2M[] = {
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0x02, 0x01, 0x06,
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0x03, 0x03, 0xab, 0xcd,
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0x03, 0x03, 0xAB, 0xF2,
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0x0e, 0X09, 'b', 'l', 'e', 'p', 'r', 'p', 'h', '-', 'p', 'h', 'y', '-', '2', 'M',
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};
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static uint8_t ext_adv_pattern_coded[] = {
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0x02, 0x01, 0x06,
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0x03, 0x03, 0xab, 0xcd,
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0x03, 0x03, 0xAB, 0xF2,
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0x11, 0X09, 'b', 'l', 'e', 'p', 'r', 'p', 'h', '-', 'p', 'h', 'y', '-', 'c', 'o', 'd', 'e',
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'd',
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};
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static const char *tag = "NimBLE_BLE_PHY_PRPH";
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static int bleprph_gap_event(struct ble_gap_event *event, void *arg);
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static uint8_t own_addr_type;
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static uint8_t s_current_phy;
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void ble_store_config_init(void);
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/* Set default LE PHY before establishing connection */
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void set_default_le_phy(uint8_t tx_phys_mask, uint8_t rx_phys_mask)
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{
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int rc = ble_gap_set_prefered_default_le_phy(tx_phys_mask, rx_phys_mask);
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if (rc == 0) {
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MODLOG_DFLT(INFO, "Default LE PHY set successfully");
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} else {
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MODLOG_DFLT(ERROR, "Failed to set default LE PHY");
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}
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}
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/**
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* Logs information about a connection to the console.
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*/
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static void
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bleprph_print_conn_desc(struct ble_gap_conn_desc *desc)
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{
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MODLOG_DFLT(INFO, "handle=%d our_ota_addr_type=%d our_ota_addr=",
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desc->conn_handle, desc->our_ota_addr.type);
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print_addr(desc->our_ota_addr.val);
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MODLOG_DFLT(INFO, " our_id_addr_type=%d our_id_addr=",
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desc->our_id_addr.type);
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print_addr(desc->our_id_addr.val);
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MODLOG_DFLT(INFO, " peer_ota_addr_type=%d peer_ota_addr=",
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desc->peer_ota_addr.type);
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print_addr(desc->peer_ota_addr.val);
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MODLOG_DFLT(INFO, " peer_id_addr_type=%d peer_id_addr=",
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desc->peer_id_addr.type);
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print_addr(desc->peer_id_addr.val);
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MODLOG_DFLT(INFO, " conn_itvl=%d conn_latency=%d supervision_timeout=%d "
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"encrypted=%d authenticated=%d bonded=%d\n",
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desc->conn_itvl, desc->conn_latency,
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desc->supervision_timeout,
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desc->sec_state.encrypted,
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desc->sec_state.authenticated,
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desc->sec_state.bonded);
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}
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static struct os_mbuf *
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ext_get_data(uint8_t ext_adv_pattern[], int size)
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{
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struct os_mbuf *data;
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int rc;
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data = os_msys_get_pkthdr(size, 0);
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assert(data);
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rc = os_mbuf_append(data, ext_adv_pattern, size);
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assert(rc == 0);
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return data;
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}
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/**
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* Enables advertising with the following parameters:
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* o General discoverable mode.
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* o Undirected connectable mode.
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*/
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static void
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ext_bleprph_advertise(void)
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{
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struct ble_gap_ext_adv_params params;
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struct os_mbuf *data = NULL;
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uint8_t instance = 1;
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int rc;
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/* use defaults for non-set params */
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memset (¶ms, 0, sizeof(params));
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if (s_current_phy == BLE_HCI_LE_PHY_1M_PREF_MASK) {
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params.scannable = 1;
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params.legacy_pdu = 1;
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}
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/*enable connectable advertising for all Phy*/
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params.connectable = 1;
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/* advertise using random addr */
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params.own_addr_type = BLE_OWN_ADDR_PUBLIC;
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/* Set current phy; get mbuf for scan rsp data; fill mbuf with scan rsp data */
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switch (s_current_phy) {
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case BLE_HCI_LE_PHY_1M_PREF_MASK:
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params.primary_phy = BLE_HCI_LE_PHY_1M;
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params.secondary_phy = BLE_HCI_LE_PHY_1M;
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data = ext_get_data(ext_adv_pattern_1M, sizeof(ext_adv_pattern_1M));
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params.sid = 0;
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break;
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case BLE_HCI_LE_PHY_2M_PREF_MASK:
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params.primary_phy = BLE_HCI_LE_PHY_1M;
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params.secondary_phy = BLE_HCI_LE_PHY_2M;
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data = ext_get_data(ext_adv_pattern_2M, sizeof(ext_adv_pattern_2M));
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params.sid = 1;
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break;
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case BLE_HCI_LE_PHY_CODED_PREF_MASK:
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params.primary_phy = BLE_HCI_LE_PHY_CODED;
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params.secondary_phy = BLE_HCI_LE_PHY_CODED;
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data = ext_get_data(ext_adv_pattern_coded, sizeof(ext_adv_pattern_coded));
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params.sid = 2;
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break;
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}
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params.itvl_min = BLE_GAP_ADV_FAST_INTERVAL1_MIN;
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params.itvl_max = BLE_GAP_ADV_FAST_INTERVAL1_MIN;
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/* configure instance 0 */
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rc = ble_gap_ext_adv_configure(instance, ¶ms, NULL,
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bleprph_gap_event, NULL);
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assert (rc == 0);
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rc = ble_gap_ext_adv_set_data(instance, data);
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assert (rc == 0);
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/* start advertising */
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rc = ble_gap_ext_adv_start(instance, 0, 0);
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assert (rc == 0);
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}
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/**
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* The nimble host executes this callback when a GAP event occurs. The
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* application associates a GAP event callback with each connection that forms.
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* bleprph uses the same callback for all connections.
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*
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* @param event The type of event being signalled.
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* @param ctxt Various information pertaining to the event.
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* @param arg Application-specified argument; unused by
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* bleprph.
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*
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* @return 0 if the application successfully handled the
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* event; nonzero on failure. The semantics
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* of the return code is specific to the
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* particular GAP event being signalled.
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*/
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static int
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bleprph_gap_event(struct ble_gap_event *event, void *arg)
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{
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struct ble_gap_conn_desc desc;
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int rc;
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switch (event->type) {
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case BLE_GAP_EVENT_CONNECT:
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/* A new connection was established or a connection attempt failed. */
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MODLOG_DFLT(INFO, "connection %s; status=%d ",
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event->connect.status == 0 ? "established" : "failed",
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event->connect.status);
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if (event->connect.status == 0) {
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rc = ble_gap_conn_find(event->connect.conn_handle, &desc);
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assert(rc == 0);
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bleprph_print_conn_desc(&desc);
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}
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MODLOG_DFLT(INFO, "\n");
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if (event->connect.status != 0) {
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/* Connection failed; resume advertising. */
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ext_bleprph_advertise();
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}
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return 0;
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case BLE_GAP_EVENT_DISCONNECT:
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MODLOG_DFLT(INFO, "disconnect; reason=%d ", event->disconnect.reason);
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bleprph_print_conn_desc(&event->disconnect.conn);
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MODLOG_DFLT(INFO, "\n");
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/* Connection terminated; resume advertising. */
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switch (s_current_phy) {
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case BLE_HCI_LE_PHY_1M_PREF_MASK:
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/* Setting current phy to create connection on 2M PHY */
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s_current_phy = BLE_HCI_LE_PHY_2M_PREF_MASK;
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break;
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case BLE_HCI_LE_PHY_2M_PREF_MASK:
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/* Setting current phy to create connection on CODED PHY */
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s_current_phy = BLE_HCI_LE_PHY_CODED_PREF_MASK;
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break;
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case BLE_HCI_LE_PHY_CODED_PREF_MASK:
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return 0;
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default:
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return 0;
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}
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ext_bleprph_advertise();
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return 0;
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case BLE_GAP_EVENT_CONN_UPDATE:
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/* The central has updated the connection parameters. */
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MODLOG_DFLT(INFO, "connection updated; status=%d ",
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event->conn_update.status);
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rc = ble_gap_conn_find(event->conn_update.conn_handle, &desc);
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assert(rc == 0);
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bleprph_print_conn_desc(&desc);
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MODLOG_DFLT(INFO, "\n");
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return 0;
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case BLE_GAP_EVENT_ADV_COMPLETE:
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MODLOG_DFLT(INFO, "advertise complete; reason=%d",
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event->adv_complete.reason);
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return 0;
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}
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return 0;
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}
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static void
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bleprph_on_reset(int reason)
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{
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MODLOG_DFLT(ERROR, "Resetting state; reason=%d\n", reason);
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}
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static void
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bleprph_on_sync(void)
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{
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int rc;
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uint8_t all_phy;
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/* Make sure we have proper identity address set (public preferred) */
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rc = ble_hs_util_ensure_addr(0);
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assert(rc == 0);
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/* Figure out address to use while advertising (no privacy for now) */
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rc = ble_hs_id_infer_auto(0, &own_addr_type);
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if (rc != 0) {
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MODLOG_DFLT(ERROR, "error determining address type; rc=%d\n", rc);
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return;
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}
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/* Printing ADDR */
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uint8_t addr_val[6] = {0};
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rc = ble_hs_id_copy_addr(own_addr_type, addr_val, NULL);
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MODLOG_DFLT(INFO, "Device Address: ");
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print_addr(addr_val);
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MODLOG_DFLT(INFO, "\n");
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s_current_phy = BLE_HCI_LE_PHY_1M_PREF_MASK;
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all_phy = BLE_HCI_LE_PHY_1M_PREF_MASK | BLE_HCI_LE_PHY_2M_PREF_MASK | BLE_HCI_LE_PHY_CODED_PREF_MASK;
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set_default_le_phy(all_phy, all_phy);
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/* Begin advertising. */
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ext_bleprph_advertise();
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}
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void bleprph_host_task(void *param)
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{
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ESP_LOGI(tag, "BLE Host Task Started");
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/* This function will return only when nimble_port_stop() is executed */
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nimble_port_run();
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nimble_port_freertos_deinit();
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}
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void
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app_main(void)
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{
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int rc;
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/* Initialize NVS — it is used to store PHY calibration data */
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esp_err_t ret = nvs_flash_init();
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if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
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ESP_ERROR_CHECK(nvs_flash_erase());
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ret = nvs_flash_init();
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}
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ESP_ERROR_CHECK(ret);
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//ESP_ERROR_CHECK(esp_nimble_hci_and_controller_init());
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ret = nimble_port_init();
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if (ret != ESP_OK) {
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MODLOG_DFLT(ERROR, "Failed to init nimble %d \n", ret);
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return;
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}
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/* Initialize the NimBLE host configuration. */
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ble_hs_cfg.reset_cb = bleprph_on_reset;
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ble_hs_cfg.sync_cb = bleprph_on_sync;
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ble_hs_cfg.gatts_register_cb = gatt_svr_register_cb;
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ble_hs_cfg.store_status_cb = ble_store_util_status_rr;
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ble_hs_cfg.sm_io_cap = CONFIG_EXAMPLE_IO_TYPE;
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#ifdef CONFIG_EXAMPLE_BONDING
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ble_hs_cfg.sm_bonding = 1;
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#endif
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#ifdef CONFIG_EXAMPLE_MITM
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ble_hs_cfg.sm_mitm = 1;
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#endif
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#ifdef CONFIG_EXAMPLE_USE_SC
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ble_hs_cfg.sm_sc = 1;
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#else
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ble_hs_cfg.sm_sc = 0;
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#endif
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#ifdef CONFIG_EXAMPLE_BONDING
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ble_hs_cfg.sm_our_key_dist = 1;
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ble_hs_cfg.sm_their_key_dist = 1;
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#endif
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rc = gatt_svr_init_le_phy();
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assert(rc == 0);
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/* Set the default device name. */
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rc = ble_svc_gap_device_name_set("bleprph-phy");
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assert(rc == 0);
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/* XXX Need to have template for store */
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ble_store_config_init();
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nimble_port_freertos_init(bleprph_host_task);
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/* Initialize command line interface to accept input from user */
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rc = scli_init();
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if (rc != ESP_OK) {
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ESP_LOGE(tag, "scli_init() failed");
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}
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}
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