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Refactoring of BLE service discovery : it is now implemented into the classes of the services.

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This commit is contained in:
JF 2020-10-29 16:06:01 +01:00
parent f90f2254f5
commit 29f8074fcb
10 changed files with 254 additions and 227 deletions
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3
src/CMakeLists.txt
View file

@ -369,6 +369,7 @@ list(APPEND SOURCE_FILES
components/ble/MusicService.cpp
components/ble/BatteryInformationService.cpp
components/ble/ImmediateAlertService.cpp
components/ble/ServiceDiscovery.cpp
components/firmwarevalidator/FirmwareValidator.cpp
drivers/Cst816s.cpp
FreeRTOS/port.c
@ -447,6 +448,8 @@ set(INCLUDE_FILES
components/firmwarevalidator/FirmwareValidator.h
components/ble/BatteryInformationService.h
components/ble/ImmediateAlertService.h
components/ble/ServiceDiscovery.h
components/ble/BleClient.h
drivers/Cst816s.h
FreeRTOS/portmacro.h
FreeRTOS/portmacro_cmsis.h

102
src/components/ble/AlertNotificationClient.cpp
View file

@ -3,38 +3,68 @@
#include "AlertNotificationClient.h"
using namespace Pinetime::Controllers;
constexpr ble_uuid16_t AlertNotificationClient::ansServiceUuid;
constexpr ble_uuid16_t AlertNotificationClient::supportedNewAlertCategoryUuid;
constexpr ble_uuid16_t AlertNotificationClient::supportedUnreadAlertCategoryUuid;
constexpr ble_uuid16_t AlertNotificationClient::newAlertUuid;
constexpr ble_uuid16_t AlertNotificationClient::unreadAlertStatusUuid;
constexpr ble_uuid16_t AlertNotificationClient::controlPointUuid;
int Pinetime::Controllers::NewAlertSubcribeCallback(uint16_t conn_handle,
namespace {
int
OnDiscoveryEventCallback(uint16_t conn_handle, const struct ble_gatt_error *error, const struct ble_gatt_svc *service,
void *arg) {
auto client = static_cast<AlertNotificationClient *>(arg);
return client->OnDiscoveryEvent(conn_handle, error, service);
}
int OnAlertNotificationCharacteristicDiscoveredCallback(uint16_t conn_handle, const struct ble_gatt_error *error,
const struct ble_gatt_chr *chr, void *arg) {
auto client = static_cast<AlertNotificationClient *>(arg);
return client->OnCharacteristicsDiscoveryEvent(conn_handle, error, chr);
}
int OnAlertNotificationDescriptorDiscoveryEventCallback(uint16_t conn_handle,
const struct ble_gatt_error *error,
uint16_t chr_val_handle,
const struct ble_gatt_dsc *dsc,
void *arg) {
auto client = static_cast<AlertNotificationClient *>(arg);
return client->OnDescriptorDiscoveryEventCallback(conn_handle, error, chr_val_handle, dsc);
}
int NewAlertSubcribeCallback(uint16_t conn_handle,
const struct ble_gatt_error *error,
struct ble_gatt_attr *attr,
void *arg) {
auto client = static_cast<AlertNotificationClient *>(arg);
return client->OnNewAlertSubcribe(conn_handle, error, attr);
}
}
AlertNotificationClient::AlertNotificationClient(Pinetime::System::SystemTask &systemTask,
Pinetime::Controllers::NotificationManager &notificationManager) :
systemTask{systemTask}, notificationManager{notificationManager} {
}
bool AlertNotificationClient::OnDiscoveryEvent(uint16_t connectionHandle, const ble_gatt_error *error, const ble_gatt_svc *service) {
bool AlertNotificationClient::OnDiscoveryEvent(uint16_t connectionHandle, const ble_gatt_error *error,
const ble_gatt_svc *service) {
if (service == nullptr && error->status == BLE_HS_EDONE) {
NRF_LOG_INFO("ANS Discovery complete");
if (isDiscovered) {
NRF_LOG_INFO("ANS Discovery found, starting characteristics discovery");
ble_gattc_disc_all_chrs(connectionHandle, ansStartHandle, ansEndHandle,
OnAlertNotificationCharacteristicDiscoveredCallback, this);
} else {
NRF_LOG_INFO("ANS not found");
onServiceDiscovered(connectionHandle);
}
return true;
}
if (service != nullptr && ble_uuid_cmp(((ble_uuid_t *) &ansServiceUuid), &service->uuid.u) == 0) {
NRF_LOG_INFO("ANS discovered : 0x%x", service->start_handle);
NRF_LOG_INFO("ANS discovered : 0x%x - 0x%x", service->start_handle, service->end_handle);
ansStartHandle = service->start_handle;
ansEndHandle = service->end_handle;
isDiscovered = true;
@ -46,30 +76,42 @@ int AlertNotificationClient::OnCharacteristicsDiscoveryEvent(uint16_t connection
const ble_gatt_chr *characteristic) {
if (error->status != 0 && error->status != BLE_HS_EDONE) {
NRF_LOG_INFO("ANS Characteristic discovery ERROR");
onServiceDiscovered(connectionHandle);
return 0;
}
if (characteristic == nullptr && error->status == BLE_HS_EDONE) {
NRF_LOG_INFO("ANS Characteristic discovery complete");
if (isCharacteristicDiscovered) {
ble_gattc_disc_all_dscs(connectionHandle,
newAlertHandle, ansEndHandle,
OnAlertNotificationDescriptorDiscoveryEventCallback, this);
} else
onServiceDiscovered(connectionHandle);
} else {
if(characteristic != nullptr && ble_uuid_cmp(((ble_uuid_t*)&supportedNewAlertCategoryUuid), &characteristic->uuid.u) == 0) {
if (characteristic != nullptr &&
ble_uuid_cmp(((ble_uuid_t *) &supportedNewAlertCategoryUuid), &characteristic->uuid.u) == 0) {
NRF_LOG_INFO("ANS Characteristic discovered : supportedNewAlertCategoryUuid");
supportedNewAlertCategoryHandle = characteristic->val_handle;
} else if(characteristic != nullptr && ble_uuid_cmp(((ble_uuid_t*)&supportedUnreadAlertCategoryUuid), &characteristic->uuid.u) == 0) {
} else if (characteristic != nullptr &&
ble_uuid_cmp(((ble_uuid_t *) &supportedUnreadAlertCategoryUuid), &characteristic->uuid.u) == 0) {
NRF_LOG_INFO("ANS Characteristic discovered : supportedUnreadAlertCategoryUuid");
supportedUnreadAlertCategoryHandle = characteristic->val_handle;
} else if(characteristic != nullptr && ble_uuid_cmp(((ble_uuid_t*)&newAlertUuid), &characteristic->uuid.u) == 0) {
} else if (characteristic != nullptr &&
ble_uuid_cmp(((ble_uuid_t *) &newAlertUuid), &characteristic->uuid.u) == 0) {
NRF_LOG_INFO("ANS Characteristic discovered : newAlertUuid");
newAlertHandle = characteristic->val_handle;
newAlertDefHandle = characteristic->def_handle;
} else if(characteristic != nullptr && ble_uuid_cmp(((ble_uuid_t*)&unreadAlertStatusUuid), &characteristic->uuid.u) == 0) {
isCharacteristicDiscovered = true;
} else if (characteristic != nullptr &&
ble_uuid_cmp(((ble_uuid_t *) &unreadAlertStatusUuid), &characteristic->uuid.u) == 0) {
NRF_LOG_INFO("ANS Characteristic discovered : unreadAlertStatusUuid");
unreadAlertStatusHandle = characteristic->val_handle;
} else if(characteristic != nullptr && ble_uuid_cmp(((ble_uuid_t*)&controlPointUuid), &characteristic->uuid.u) == 0) {
} else if (characteristic != nullptr &&
ble_uuid_cmp(((ble_uuid_t *) &controlPointUuid), &characteristic->uuid.u) == 0) {
NRF_LOG_INFO("ANS Characteristic discovered : controlPointUuid");
controlPointHandle = characteristic->val_handle;
}else
NRF_LOG_INFO("ANS Characteristic discovered : 0x%x", characteristic->val_handle);
} else NRF_LOG_INFO("ANS Characteristic discovered : 0x%x", characteristic->val_handle);
}
return 0;
}
@ -81,6 +123,7 @@ int AlertNotificationClient::OnNewAlertSubcribe(uint16_t connectionHandle, const
} else {
NRF_LOG_INFO("ANS New alert subscribe ERROR");
}
onServiceDiscovered(connectionHandle);
return 0;
}
@ -89,16 +132,21 @@ int AlertNotificationClient::OnDescriptorDiscoveryEventCallback(uint16_t connect
uint16_t characteristicValueHandle,
const ble_gatt_dsc *descriptor) {
if (error->status == 0) {
if(characteristicValueHandle == newAlertHandle && ble_uuid_cmp(((ble_uuid_t*)&newAlertUuid), &descriptor->uuid.u)) {
if (characteristicValueHandle == newAlertHandle &&
ble_uuid_cmp(((ble_uuid_t *) &newAlertUuid), &descriptor->uuid.u)) {
if (newAlertDescriptorHandle == 0) {
NRF_LOG_INFO("ANS Descriptor discovered : %d", descriptor->handle);
newAlertDescriptorHandle = descriptor->handle;
isDescriptorFound = true;
uint8_t value[2];
value[0] = 1;
value[1] = 0;
ble_gattc_write_flat(connectionHandle, newAlertDescriptorHandle, value, sizeof(value), NewAlertSubcribeCallback, this);
}
}
} else {
if (!isDescriptorFound)
onServiceDiscovered(connectionHandle);
}
return 0;
}
@ -124,22 +172,6 @@ void AlertNotificationClient::OnNotification(ble_gap_event *event) {
}
}
bool AlertNotificationClient::IsDiscovered() const {
return isDiscovered;
}
uint16_t AlertNotificationClient::StartHandle() const {
return ansStartHandle;
}
uint16_t AlertNotificationClient::EndHandle() const {
return ansEndHandle;
}
uint16_t AlertNotificationClient::NewAlerthandle() const {
return newAlertHandle;
}
void AlertNotificationClient::Reset() {
ansStartHandle = 0;
ansEndHandle = 0;
@ -151,4 +183,12 @@ void AlertNotificationClient::Reset() {
unreadAlertStatusHandle = 0;
controlPointHandle = 0;
isDiscovered = false;
isCharacteristicDiscovered = false;
isDescriptorFound = false;
}
void AlertNotificationClient::Discover(uint16_t connectionHandle, std::function<void(uint16_t)> onServiceDiscovered) {
NRF_LOG_INFO("[ANS] Starting discovery");
this->onServiceDiscovered = onServiceDiscovered;
ble_gattc_disc_svc_by_uuid(connectionHandle, &ansServiceUuid.u, OnDiscoveryEventCallback, this);
}

18
src/components/ble/AlertNotificationClient.h
View file

@ -3,16 +3,12 @@
#include <cstdint>
#include <array>
#include <host/ble_gap.h>
#include "BleClient.h"
namespace Pinetime {
namespace Controllers {
int NewAlertSubcribeCallback(uint16_t conn_handle,
const struct ble_gatt_error *error,
struct ble_gatt_attr *attr,
void *arg);
class AlertNotificationClient {
class AlertNotificationClient : public BleClient {
public:
explicit AlertNotificationClient(Pinetime::System::SystemTask &systemTask,
Pinetime::Controllers::NotificationManager &notificationManager);
@ -24,14 +20,9 @@ namespace Pinetime {
int OnDescriptorDiscoveryEventCallback(uint16_t connectionHandle, const ble_gatt_error *error,
uint16_t characteristicValueHandle, const ble_gatt_dsc *descriptor);
void OnNotification(ble_gap_event *event);
bool IsDiscovered() const;
uint16_t StartHandle() const;
uint16_t EndHandle() const;
void Reset();
void Discover(uint16_t connectionHandle, std::function<void(uint16_t)> lambda) override;
static constexpr const ble_uuid16_t &Uuid() { return ansServiceUuid; }
uint16_t NewAlerthandle() const;
private:
static constexpr uint16_t ansServiceId{0x1811};
static constexpr uint16_t supportedNewAlertCategoryId = 0x2a47;
@ -77,6 +68,9 @@ namespace Pinetime {
bool isDiscovered = false;
Pinetime::System::SystemTask &systemTask;
Pinetime::Controllers::NotificationManager &notificationManager;
std::function<void(uint16_t)> onServiceDiscovered;
bool isCharacteristicDiscovered = false;
bool isDescriptorFound = false;
};
}
}

12
src/components/ble/BleClient.h Normal file
View file

@ -0,0 +1,12 @@
#pragma once
#include <functional>
namespace Pinetime {
namespace Controllers{
class BleClient {
public:
virtual void Discover(uint16_t connectionHandle, std::function<void(uint16_t)> lambda) = 0;
};
}
}

72
src/components/ble/CurrentTimeClient.cpp
View file

@ -6,6 +6,24 @@ using namespace Pinetime::Controllers;
constexpr ble_uuid16_t CurrentTimeClient::ctsServiceUuid;
constexpr ble_uuid16_t CurrentTimeClient::currentTimeCharacteristicUuid;
namespace {
int OnDiscoveryEventCallback(uint16_t conn_handle, const struct ble_gatt_error *error, const struct ble_gatt_svc *service, void *arg) {
auto client = static_cast<CurrentTimeClient *>(arg);
return client->OnDiscoveryEvent(conn_handle, error, service);
}
int OnCurrentTimeCharacteristicDiscoveredCallback(uint16_t conn_handle, const struct ble_gatt_error *error,
const struct ble_gatt_chr *chr, void *arg) {
auto client = static_cast<CurrentTimeClient *>(arg);
return client->OnCharacteristicDiscoveryEvent(conn_handle, error, chr);
}
int CurrentTimeReadCallback(uint16_t conn_handle, const struct ble_gatt_error *error, struct ble_gatt_attr *attr, void *arg) {
auto client = static_cast<CurrentTimeClient *>(arg);
return client->OnCurrentTimeReadResult(conn_handle, error, attr);
}
}
CurrentTimeClient::CurrentTimeClient(DateTime &dateTimeController) : dateTimeController{dateTimeController} {
}
@ -14,14 +32,23 @@ void CurrentTimeClient::Init() {
}
bool CurrentTimeClient::OnDiscoveryEvent(uint16_t connectionHandle, const ble_gatt_error *error, const ble_gatt_svc *service) {
bool CurrentTimeClient::OnDiscoveryEvent(uint16_t connectionHandle, const ble_gatt_error *error,
const ble_gatt_svc *service) {
if (service == nullptr && error->status == BLE_HS_EDONE) {
NRF_LOG_INFO("CTS Discovery complete");
if (isDiscovered) {
NRF_LOG_INFO("CTS found, starting characteristics discovery");
ble_gattc_disc_all_chrs(connectionHandle, ctsStartHandle, ctsEndHandle,
OnCurrentTimeCharacteristicDiscoveredCallback, this);
} else {
NRF_LOG_INFO("CTS not found");
onServiceDiscovered(connectionHandle);
}
return true;
}
if (service != nullptr && ble_uuid_cmp(((ble_uuid_t *) &ctsServiceUuid), &service->uuid.u) == 0) {
NRF_LOG_INFO("CTS discovered : 0x%x", service->start_handle);
NRF_LOG_INFO("CTS discovered : 0x%x - 0x%x", service->start_handle, service->end_handle);
isDiscovered = true;
ctsStartHandle = service->start_handle;
ctsEndHandle = service->end_handle;
@ -33,11 +60,19 @@ bool CurrentTimeClient::OnDiscoveryEvent(uint16_t connectionHandle, const ble_ga
int CurrentTimeClient::OnCharacteristicDiscoveryEvent(uint16_t conn_handle, const ble_gatt_error *error,
const ble_gatt_chr *characteristic) {
if (characteristic == nullptr && error->status == BLE_HS_EDONE) {
NRF_LOG_INFO("CTS Characteristic discovery complete");
if (isCharacteristicDiscovered) {
NRF_LOG_INFO("CTS Characteristic discovery complete, fetching time");
ble_gattc_read(conn_handle, currentTimeHandle, CurrentTimeReadCallback, this);
} else {
NRF_LOG_INFO("CTS Characteristic discovery unsuccessful");
onServiceDiscovered(conn_handle);
}
return 0;
}
if (characteristic != nullptr && ble_uuid_cmp(((ble_uuid_t *) &currentTimeCharacteristicUuid), &characteristic->uuid.u) == 0) {
if (characteristic != nullptr &&
ble_uuid_cmp(((ble_uuid_t *) &currentTimeCharacteristicUuid), &characteristic->uuid.u) == 0) {
NRF_LOG_INFO("CTS Characteristic discovered : 0x%x", characteristic->val_handle);
isCharacteristicDiscovered = true;
currentTimeHandle = characteristic->val_handle;
@ -45,7 +80,8 @@ int CurrentTimeClient::OnCharacteristicDiscoveryEvent(uint16_t conn_handle, cons
return 0;
}
int CurrentTimeClient::OnCurrentTimeReadResult(uint16_t conn_handle, const ble_gatt_error *error, const ble_gatt_attr *attribute) {
int CurrentTimeClient::OnCurrentTimeReadResult(uint16_t conn_handle, const ble_gatt_error *error,
const ble_gatt_attr *attribute) {
if (error->status == 0) {
// TODO check that attribute->handle equals the handle discovered in OnCharacteristicDiscoveryEvent
CtsData result;
@ -58,30 +94,18 @@ int CurrentTimeClient::OnCurrentTimeReadResult(uint16_t conn_handle, const ble_g
} else {
NRF_LOG_INFO("Error retrieving current time: %d", error->status);
}
onServiceDiscovered(conn_handle);
return 0;
}
bool CurrentTimeClient::IsDiscovered() const {
return isDiscovered;
}
uint16_t CurrentTimeClient::StartHandle() const {
return ctsStartHandle;
}
uint16_t CurrentTimeClient::EndHandle() const {
return ctsEndHandle;
}
uint16_t CurrentTimeClient::CurrentTimeHandle() const {
return currentTimeHandle;
}
void CurrentTimeClient::Reset() {
isDiscovered = false;
isCharacteristicDiscovered = false;
}
bool CurrentTimeClient::IsCharacteristicDiscovered() const {
return isCharacteristicDiscovered;
void CurrentTimeClient::Discover(uint16_t connectionHandle, std::function<void(uint16_t)> onServiceDiscovered) {
NRF_LOG_INFO("[CTS] Starting discovery");
this->onServiceDiscovered = onServiceDiscovered;
ble_gattc_disc_svc_by_uuid(connectionHandle, &ctsServiceUuid.u, OnDiscoveryEventCallback, this);
}

12
src/components/ble/CurrentTimeClient.h
View file

@ -3,12 +3,13 @@
#include <array>
#include "components/datetime/DateTimeController.h"
#include "BleClient.h"
#include <host/ble_gap.h>
namespace Pinetime {
namespace Controllers {
class CurrentTimeClient {
class CurrentTimeClient : public BleClient {
public:
explicit CurrentTimeClient(DateTime& dateTimeController);
void Init();
@ -17,13 +18,10 @@ namespace Pinetime {
int OnCharacteristicDiscoveryEvent(uint16_t conn_handle, const ble_gatt_error *error,
const ble_gatt_chr *characteristic);
int OnCurrentTimeReadResult(uint16_t conn_handle, const ble_gatt_error *error, const ble_gatt_attr *attribute);
bool IsDiscovered() const;
bool IsCharacteristicDiscovered() const;
uint16_t StartHandle() const;
uint16_t EndHandle() const;
uint16_t CurrentTimeHandle() const;
static constexpr const ble_uuid16_t* Uuid() { return &CurrentTimeClient::ctsServiceUuid; }
static constexpr const ble_uuid16_t* CurrentTimeCharacteristicUuid() { return &CurrentTimeClient::currentTimeCharacteristicUuid; }
void Discover(uint16_t connectionHandle, std::function<void(uint16_t)> lambda) override;
private:
typedef struct __attribute__((packed)) {
uint16_t year;
@ -55,7 +53,7 @@ namespace Pinetime {
bool isCharacteristicDiscovered = false;
uint16_t currentTimeHandle;
std::function<void(uint16_t)> onServiceDiscovered;
};
}
}

108
src/components/ble/NimbleController.cpp
View file

@ -1,10 +1,7 @@
#include "components/datetime/DateTimeController.h"
#include <systemtask/SystemTask.h>
#include "components/ble/NotificationManager.h"
#include <hal/nrf_rtc.h>
#include "NimbleController.h"
#include "MusicService.h"
#include <services/gatt/ble_svc_gatt.h>
@ -14,14 +11,8 @@
#include <host/ble_hs.h>
#include <host/ble_gap.h>
using namespace Pinetime::Controllers;
// TODO I'm not satisfied by how this code looks like (AlertNotificationClient and CurrentTimeClient must
// expose too much data, too many callbacks -> NimbleController -> CTS/ANS client.
// Let's try to improve this code (and keep it working!)
NimbleController::NimbleController(Pinetime::System::SystemTask& systemTask,
Pinetime::Controllers::Ble& bleController,
DateTime& dateTimeController,
@ -40,8 +31,8 @@ NimbleController::NimbleController(Pinetime::System::SystemTask& systemTask,
currentTimeService{dateTimeController},
musicService{systemTask},
batteryInformationService{batteryController},
immediateAlertService{systemTask, notificationManager} {
immediateAlertService{systemTask, notificationManager},
serviceDiscovery({&currentTimeClient, &alertNotificationClient}) {
}
int GAPEventCallback(struct ble_gap_event *event, void *arg) {
@ -49,33 +40,6 @@ int GAPEventCallback(struct ble_gap_event *event, void *arg) {
return nimbleController->OnGAPEvent(event);
}
int CurrentTimeCharacteristicDiscoveredCallback(uint16_t conn_handle, const struct ble_gatt_error *error,
const struct ble_gatt_chr *chr, void *arg) {
auto client = static_cast<NimbleController*>(arg);
return client->OnCTSCharacteristicDiscoveryEvent(conn_handle, error, chr);
}
int AlertNotificationCharacteristicDiscoveredCallback(uint16_t conn_handle, const struct ble_gatt_error *error,
const struct ble_gatt_chr *chr, void *arg) {
auto client = static_cast<NimbleController*>(arg);
return client->OnANSCharacteristicDiscoveryEvent(conn_handle, error, chr);
}
int CurrentTimeReadCallback(uint16_t conn_handle, const struct ble_gatt_error *error,
struct ble_gatt_attr *attr, void *arg) {
auto client = static_cast<NimbleController*>(arg);
return client->OnCurrentTimeReadResult(conn_handle, error, attr);
}
int AlertNotificationDescriptorDiscoveryEventCallback(uint16_t conn_handle,
const struct ble_gatt_error *error,
uint16_t chr_val_handle,
const struct ble_gatt_dsc *dsc,
void *arg) {
auto client = static_cast<NimbleController*>(arg);
return client->OnANSDescriptorDiscoveryEventCallback(conn_handle, error, chr_val_handle, dsc);
}
void NimbleController::Init() {
while (!ble_hs_synced()) {}
@ -158,15 +122,6 @@ void NimbleController::StartAdvertising() {
// the application has been woken up, for example.
}
int OnAllSvrDisco(uint16_t conn_handle,
const struct ble_gatt_error *error,
const struct ble_gatt_svc *service,
void *arg) {
auto nimbleController = static_cast<NimbleController*>(arg);
return nimbleController->OnDiscoveryEvent(conn_handle, error, service);
return 0;
}
int NimbleController::OnGAPEvent(ble_gap_event *event) {
switch (event->type) {
case BLE_GAP_EVENT_ADV_COMPLETE:
@ -271,65 +226,8 @@ int NimbleController::OnGAPEvent(ble_gap_event *event) {
return 0;
}
int NimbleController::OnDiscoveryEvent(uint16_t i, const ble_gatt_error *error, const ble_gatt_svc *service) {
if(service == nullptr && error->status == BLE_HS_EDONE) {
NRF_LOG_INFO("Service Discovery complete");
if(currentTimeClient.IsDiscovered()) {
ble_gattc_disc_all_chrs(connectionHandle, currentTimeClient.StartHandle(), currentTimeClient.EndHandle(),
CurrentTimeCharacteristicDiscoveredCallback, this);
} else if(alertNotificationClient.IsDiscovered()) {
ble_gattc_disc_all_chrs(connectionHandle, alertNotificationClient.StartHandle(), alertNotificationClient.EndHandle(),
AlertNotificationCharacteristicDiscoveredCallback, this);
}
}
alertNotificationClient.OnDiscoveryEvent(i, error, service);
currentTimeClient.OnDiscoveryEvent(i, error, service);
return 0;
}
int NimbleController::OnCTSCharacteristicDiscoveryEvent(uint16_t connectionHandle, const ble_gatt_error *error,
const ble_gatt_chr *characteristic) {
if(characteristic == nullptr && error->status == BLE_HS_EDONE && currentTimeClient.IsCharacteristicDiscovered()) {
NRF_LOG_INFO("CTS characteristic Discovery complete");
auto res = ble_gattc_read(connectionHandle, currentTimeClient.CurrentTimeHandle(), CurrentTimeReadCallback, this);
return res;
}
return currentTimeClient.OnCharacteristicDiscoveryEvent(connectionHandle, error, characteristic);
}
int NimbleController::OnANSCharacteristicDiscoveryEvent(uint16_t connectionHandle, const ble_gatt_error *error,
const ble_gatt_chr *characteristic) {
if(characteristic == nullptr && error->status == BLE_HS_EDONE) {
NRF_LOG_INFO("ANS characteristic Discovery complete");
ble_gattc_disc_all_dscs(connectionHandle,
alertNotificationClient.NewAlerthandle(), alertNotificationClient.EndHandle(),
AlertNotificationDescriptorDiscoveryEventCallback, this);
return 0;
}
return alertNotificationClient.OnCharacteristicsDiscoveryEvent(connectionHandle, error, characteristic);
}
int NimbleController::OnCurrentTimeReadResult(uint16_t connectionHandle, const ble_gatt_error *error, ble_gatt_attr *attribute) {
currentTimeClient.OnCurrentTimeReadResult(connectionHandle, error, attribute);
if (alertNotificationClient.IsDiscovered()) {
ble_gattc_disc_all_chrs(connectionHandle, alertNotificationClient.StartHandle(),
alertNotificationClient.EndHandle(),
AlertNotificationCharacteristicDiscoveredCallback, this);
}
return 0;
}
int NimbleController::OnANSDescriptorDiscoveryEventCallback(uint16_t connectionHandle, const ble_gatt_error *error,
uint16_t characteristicValueHandle,
const ble_gatt_dsc *descriptor) {
return alertNotificationClient.OnDescriptorDiscoveryEventCallback(connectionHandle, error, characteristicValueHandle, descriptor);
}
void NimbleController::StartDiscovery() {
ble_gattc_disc_all_svcs(connectionHandle, OnAllSvrDisco, this);
serviceDiscovery.StartDiscovery(connectionHandle);
}

3
src/components/ble/NimbleController.h
View file

@ -11,6 +11,7 @@
#include "MusicService.h"
#include "BatteryInformationService.h"
#include "ImmediateAlertService.h"
#include "ServiceDiscovery.h"
#include <host/ble_gap.h>
namespace Pinetime {
@ -71,6 +72,8 @@ namespace Pinetime {
.value = {0x23, 0xD1, 0xBC, 0xEA, 0x5F, 0x78, 0x23, 0x15,
0xDE, 0xEF, 0x12, 0x12, 0x30, 0x15, 0x00, 0x00}
};
ServiceDiscovery serviceDiscovery;
};
}
}

31
src/components/ble/ServiceDiscovery.cpp Normal file
View file

@ -0,0 +1,31 @@
#include <libraries/log/nrf_log.h>
#include "ServiceDiscovery.h"
using namespace Pinetime::Controllers;
ServiceDiscovery::ServiceDiscovery(std::array<BleClient*, 2>&& clients) : clients{clients} {
}
void ServiceDiscovery::StartDiscovery(uint16_t connectionHandle) {
NRF_LOG_INFO("[Discovery] Starting discovery");
clientIterator = clients.begin();
DiscoverNextService(connectionHandle);
}
void ServiceDiscovery::OnServiceDiscovered(uint16_t connectionHandle) {
clientIterator++;
if(clientIterator != clients.end()) {
DiscoverNextService(connectionHandle);
} else {
NRF_LOG_INFO("End of service discovery");
}
}
void ServiceDiscovery::DiscoverNextService(uint16_t connectionHandle) {
NRF_LOG_INFO("[Discovery] Discover next service");
auto discoverNextService = [this](uint16_t connectionHandle){
this->OnServiceDiscovered(connectionHandle);
};
(*clientIterator)->Discover(connectionHandle, discoverNextService);
}

24
src/components/ble/ServiceDiscovery.h Normal file
View file

@ -0,0 +1,24 @@
#pragma once
#include <array>
#include <functional>
#include <memory>
#include "BleClient.h"
namespace Pinetime {
namespace Controllers {
class ServiceDiscovery {
public:
ServiceDiscovery(std::array<BleClient*, 2>&& bleClients);
void StartDiscovery(uint16_t connectionHandle);
private:
BleClient** clientIterator;
std::array<BleClient*, 2> clients;
void OnServiceDiscovered(uint16_t connectionHandle);
void DiscoverNextService(uint16_t connectionHandle);
};
}
}