InfiniTime.git

ref: 0.12.0

src/components/ble/NimbleController.cpp


  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
#include "NimbleController.h"
#include <hal/nrf_rtc.h>
#define min // workaround: nimble's min/max macros conflict with libstdc++
#define max
#include <host/ble_gap.h>
#include <host/ble_hs.h>
#include <host/ble_hs_id.h>
#include <host/util/util.h>
#undef max
#undef min
#include <services/gap/ble_svc_gap.h>
#include <services/gatt/ble_svc_gatt.h>
#include "components/ble/BleController.h"
#include "components/ble/NotificationManager.h"
#include "components/datetime/DateTimeController.h"
#include "systemtask/SystemTask.h"

using namespace Pinetime::Controllers;

NimbleController::NimbleController(Pinetime::System::SystemTask& systemTask,
                                   Pinetime::Controllers::Ble& bleController,
        DateTime& dateTimeController,
        Pinetime::Controllers::NotificationManager& notificationManager,
        Controllers::Battery& batteryController,
        Pinetime::Drivers::SpiNorFlash& spiNorFlash,
        Controllers::HeartRateController& heartRateController) :
        systemTask{systemTask},
        bleController{bleController},
        dateTimeController{dateTimeController},
        notificationManager{notificationManager},
        spiNorFlash{spiNorFlash},
        dfuService{systemTask, bleController, spiNorFlash},
        currentTimeClient{dateTimeController},
        anService{systemTask, notificationManager},
        alertNotificationClient{systemTask, notificationManager},
        currentTimeService{dateTimeController},
        musicService{systemTask},
        navService{systemTask},
        batteryInformationService{batteryController},
        immediateAlertService{systemTask, notificationManager},
        serviceDiscovery({&currentTimeClient, &alertNotificationClient}),
        heartRateService{systemTask, heartRateController} {
}

int GAPEventCallback(struct ble_gap_event *event, void *arg) {
  auto nimbleController = static_cast<NimbleController*>(arg);
  return nimbleController->OnGAPEvent(event);
}

void NimbleController::Init() {
  while (!ble_hs_synced()) {}

  ble_svc_gap_init();
  ble_svc_gatt_init();

  deviceInformationService.Init();
  currentTimeClient.Init();
  currentTimeService.Init();
  musicService.Init();
  navService.Init();
  anService.Init();
  dfuService.Init();
  batteryInformationService.Init();
  immediateAlertService.Init();
  heartRateService.Init();
  int res;
  res = ble_hs_util_ensure_addr(0);
  ASSERT(res == 0);
  res = ble_hs_id_infer_auto(0, &addrType);
  ASSERT(res == 0);
  res = ble_svc_gap_device_name_set(deviceName);
  ASSERT(res == 0);
  Pinetime::Controllers::Ble::BleAddress address;
  res = ble_hs_id_copy_addr(addrType, address.data(), nullptr);
  ASSERT(res == 0);
  bleController.AddressType((addrType == 0) ? Ble::AddressTypes::Public : Ble::AddressTypes::Random);
  bleController.Address(std::move(address));

  res = ble_gatts_start();
  ASSERT(res == 0);
}

void NimbleController::StartAdvertising() {
  if(bleController.IsConnected() || ble_gap_conn_active() || ble_gap_adv_active()) return;

  ble_svc_gap_device_name_set(deviceName);

  /* set adv parameters */
  struct ble_gap_adv_params adv_params;
  struct ble_hs_adv_fields fields;
  /* advertising payload is split into advertising data and advertising
     response, because all data cannot fit into single packet; name of device
     is sent as response to scan request */
  struct ble_hs_adv_fields rsp_fields;

  /* fill all fields and parameters with zeros */
  memset(&adv_params, 0, sizeof(adv_params));
  memset(&fields, 0, sizeof(fields));
  memset(&rsp_fields, 0, sizeof(rsp_fields));

  adv_params.conn_mode = BLE_GAP_CONN_MODE_UND;
  adv_params.disc_mode = BLE_GAP_DISC_MODE_GEN;

  fields.flags = BLE_HS_ADV_F_DISC_GEN |
                 BLE_HS_ADV_F_BREDR_UNSUP;
//  fields.uuids128 = BLE_UUID128(BLE_UUID128_DECLARE(
//          0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
//          0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff));
  fields.uuids128 = &dfuServiceUuid;
  fields.num_uuids128 = 1;
  fields.uuids128_is_complete = 1;
  fields.tx_pwr_lvl = BLE_HS_ADV_TX_PWR_LVL_AUTO;

  rsp_fields.name = (uint8_t *)deviceName;
  rsp_fields.name_len = strlen(deviceName);
  rsp_fields.name_is_complete = 1;

  ble_gap_adv_set_fields(&fields);
//  ASSERT(res == 0); // TODO this one sometimes fails with error 22 (notsync)

  ble_gap_adv_rsp_set_fields(&rsp_fields);
//  ASSERT(res == 0);

  ble_gap_adv_start(addrType, NULL, 180000,
                          &adv_params, GAPEventCallback, this);
//  ASSERT(res == 0);// TODO I've disabled these ASSERT as they sometime asserts and reset the mcu.
  // For now, the advertising is restarted as soon as it ends. There may be a race condition
  // that prevent the advertising from restarting reliably.
  // I remove the assert to prevent this uncesseray crash, but in the long term, the management of
  // the advertising should be improve (better error handling, and advertise for 3 minutes after
  // the application has been woken up, for example.
}

int NimbleController::OnGAPEvent(ble_gap_event *event) {
  switch (event->type) {
    case BLE_GAP_EVENT_ADV_COMPLETE:
      NRF_LOG_INFO("Advertising event : BLE_GAP_EVENT_ADV_COMPLETE");
      NRF_LOG_INFO("advertise complete; reason=%dn status=%d", event->adv_complete.reason, event->connect.status);
      break;
    case BLE_GAP_EVENT_CONNECT: {
      NRF_LOG_INFO("Advertising event : BLE_GAP_EVENT_CONNECT");

      /* A new connection was established or a connection attempt failed. */
      NRF_LOG_INFO("connection %s; status=%d ", event->connect.status == 0 ? "established" : "failed",
                   event->connect.status);

      if (event->connect.status != 0) {
        /* Connection failed; resume advertising. */
        StartAdvertising();
        bleController.Disconnect();
      } else {
        bleController.Connect();
        systemTask.PushMessage(Pinetime::System::SystemTask::Messages::BleConnected);
        connectionHandle = event->connect.conn_handle;
        // Service discovery is deffered via systemtask
      }
    }
      break;
    case BLE_GAP_EVENT_DISCONNECT:
      NRF_LOG_INFO("Advertising event : BLE_GAP_EVENT_DISCONNECT");
      NRF_LOG_INFO("disconnect; reason=%d", event->disconnect.reason);

      /* Connection terminated; resume advertising. */
      currentTimeClient.Reset();
      alertNotificationClient.Reset();
      connectionHandle = BLE_HS_CONN_HANDLE_NONE;
      bleController.Disconnect();
      StartAdvertising();
      break;
    case BLE_GAP_EVENT_CONN_UPDATE:
      NRF_LOG_INFO("Advertising event : BLE_GAP_EVENT_CONN_UPDATE");
      /* The central has updated the connection parameters. */
      NRF_LOG_INFO("connection updated; status=%d ", event->conn_update.status);
      break;
    case BLE_GAP_EVENT_ENC_CHANGE:
      /* Encryption has been enabled or disabled for this connection. */
      NRF_LOG_INFO("encryption change event; status=%d ", event->enc_change.status);
      return 0;
    case BLE_GAP_EVENT_SUBSCRIBE:
      NRF_LOG_INFO("subscribe event; conn_handle=%d attr_handle=%d "
                        "reason=%d prevn=%d curn=%d previ=%d curi=???\n",
                  event->subscribe.conn_handle,
                  event->subscribe.attr_handle,
                  event->subscribe.reason,
                  event->subscribe.prev_notify,
                  event->subscribe.cur_notify,
                  event->subscribe.prev_indicate);
      return 0;
    case BLE_GAP_EVENT_MTU:
      NRF_LOG_INFO("mtu update event; conn_handle=%d cid=%d mtu=%d\n",
                  event->mtu.conn_handle,
                  event->mtu.channel_id,
                  event->mtu.value);
      return 0;

    case BLE_GAP_EVENT_REPEAT_PAIRING: {
      /* We already have a bond with the peer, but it is attempting to
       * establish a new secure link.  This app sacrifices security for
       * convenience: just throw away the old bond and accept the new link.
       */

      /* Delete the old bond. */
      struct ble_gap_conn_desc desc;
      ble_gap_conn_find(event->repeat_pairing.conn_handle, &desc);
      ble_store_util_delete_peer(&desc.peer_id_addr);

      /* Return BLE_GAP_REPEAT_PAIRING_RETRY to indicate that the host should
       * continue with the pairing operation.
       */
    }
      return BLE_GAP_REPEAT_PAIRING_RETRY;

    case BLE_GAP_EVENT_NOTIFY_RX: {
      /* Peer sent us a notification or indication. */
      size_t notifSize = OS_MBUF_PKTLEN(event->notify_rx.om);

      NRF_LOG_INFO("received %s; conn_handle=%d attr_handle=%d "
                   "attr_len=%d",
                   event->notify_rx.indication ?
                   "indication" :
                   "notification",
                   event->notify_rx.conn_handle,
                   event->notify_rx.attr_handle,
                   notifSize);

      alertNotificationClient.OnNotification(event);
      return 0;
    }
      /* Attribute data is contained in event->notify_rx.attr_data. */

    default:
//      NRF_LOG_INFO("Advertising event : %d", event->type);
      break;
  }
  return 0;
}

void NimbleController::StartDiscovery() {
  serviceDiscovery.StartDiscovery(connectionHandle);
}


uint16_t NimbleController::connHandle() {
    return connectionHandle;
}