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