56 lines
2.3 KiB
C++
56 lines
2.3 KiB
C++
#include <nrf_log.h>
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#include "BatteryInformationService.h"
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#include "components/battery/BatteryController.h"
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using namespace Pinetime::Controllers;
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constexpr ble_uuid16_t BatteryInformationService::batteryInformationServiceUuid;
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constexpr ble_uuid16_t BatteryInformationService::batteryLevelUuid;
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int BatteryInformationServiceCallback(uint16_t conn_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt* ctxt, void* arg) {
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auto* batteryInformationService = static_cast<BatteryInformationService*>(arg);
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return batteryInformationService->OnBatteryServiceRequested(conn_handle, attr_handle, ctxt);
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}
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BatteryInformationService::BatteryInformationService(Controllers::Battery& batteryController)
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: batteryController {batteryController},
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characteristicDefinition {{.uuid = (ble_uuid_t*) &batteryLevelUuid,
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.access_cb = BatteryInformationServiceCallback,
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.arg = this,
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.flags = BLE_GATT_CHR_F_READ | BLE_GATT_CHR_F_NOTIFY,
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.val_handle = &batteryLevelHandle},
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{0}},
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serviceDefinition {
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{/* Device Information Service */
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.type = BLE_GATT_SVC_TYPE_PRIMARY,
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.uuid = (ble_uuid_t*) &batteryInformationServiceUuid,
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.characteristics = characteristicDefinition},
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{0},
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} {
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}
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void BatteryInformationService::Init() {
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int res = 0;
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res = ble_gatts_count_cfg(serviceDefinition);
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ASSERT(res == 0);
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res = ble_gatts_add_svcs(serviceDefinition);
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ASSERT(res == 0);
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}
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int BatteryInformationService::OnBatteryServiceRequested(uint16_t connectionHandle,
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uint16_t attributeHandle,
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ble_gatt_access_ctxt* context) {
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if (attributeHandle == batteryLevelHandle) {
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NRF_LOG_INFO("BATTERY : handle = %d", batteryLevelHandle);
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uint8_t batteryValue = batteryController.PercentRemaining();
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int res = os_mbuf_append(context->om, &batteryValue, 1);
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return (res == 0) ? 0 : BLE_ATT_ERR_INSUFFICIENT_RES;
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}
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return 0;
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}
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void BatteryInformationService::NotifyBatteryLevel(uint16_t connectionHandle, uint8_t level) {
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auto* om = ble_hs_mbuf_from_flat(&level, 1);
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ble_gattc_notify_custom(connectionHandle, batteryLevelHandle, om);
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}
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