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bluetooth: services: add tps service

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Added Transmit Power Service implementation.

Signed-off-by: Kamil Piszczek <Kamil.Piszczek@nordicsemi.no>
This commit is contained in:
Kamil Piszczek 2020-07-06 09:48:59 -04:00 • committed by Carles Cufí
commit ac88b86179
4 changed files with 72 additions and 0 deletions
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2
subsys/bluetooth/services/CMakeLists.txt
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@ -7,4 +7,6 @@ zephyr_sources_ifdef(CONFIG_BT_BAS bas.c)
zephyr_sources_ifdef(CONFIG_BT_HRS hrs.c)
zephyr_sources_ifdef(CONFIG_BT_TPS tps.c)
add_subdirectory_ifdef(CONFIG_BT_OTS ots)

2
subsys/bluetooth/services/Kconfig
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@ -12,6 +12,8 @@ source "subsys/bluetooth/services/Kconfig.bas"
source "subsys/bluetooth/services/Kconfig.hrs"
source "subsys/bluetooth/services/Kconfig.tps"
source "subsys/bluetooth/services/ots/Kconfig"
endmenu

15
subsys/bluetooth/services/Kconfig.tps Normal file
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@ -0,0 +1,15 @@
# Bluetooth GATT TX Power Service
# Copyright (c) 2020 Nordic Semiconductor ASA
# SPDX-License-Identifier: Apache-2.0
menuconfig BT_TPS
bool "Enable GATT TX Power service"
if BT_TPS
module = BT_TPS
module-str = TPS
source "${ZEPHYR_BASE}/subsys/logging/Kconfig.template.log_config"
endif # BT_TPS

53
subsys/bluetooth/services/tps.c Normal file
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@ -0,0 +1,53 @@
/** @file
* @brief GATT TX Power Service
*/
/*
* Copyright (c) 2020 Nordic Semiconductor ASA
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <errno.h>
#include <zephyr/types.h>
#include <bluetooth/bluetooth.h>
#include <bluetooth/conn.h>
#include <bluetooth/gatt.h>
#include <bluetooth/uuid.h>
#include <bluetooth/hci.h>
#define LOG_LEVEL CONFIG_BT_TPS_LOG_LEVEL
#include <logging/log.h>
LOG_MODULE_REGISTER(tps);
static ssize_t read_tx_power_level(struct bt_conn *conn,
const struct bt_gatt_attr *attr, void *buf,
uint16_t len, uint16_t offset)
{
int err;
struct bt_conn_le_tx_power tx_power_level = {0};
if (offset) {
return BT_GATT_ERR(BT_ATT_ERR_INVALID_OFFSET);
}
err = bt_conn_le_get_tx_power_level(conn, &tx_power_level);
if (err) {
LOG_ERR("Failed to read Tx Power Level over HCI: %d", err);
return BT_GATT_ERR(BT_ATT_ERR_UNLIKELY);
}
LOG_INF("TPS Tx Power Level read %d", tx_power_level.current_level);
return bt_gatt_attr_read(conn, attr, buf, len, offset,
&tx_power_level.current_level,
sizeof(tx_power_level.current_level));
}
BT_GATT_SERVICE_DEFINE(tps_svc,
BT_GATT_PRIMARY_SERVICE(BT_UUID_TPS),
BT_GATT_CHARACTERISTIC(BT_UUID_TPS_TX_POWER_LEVEL,
BT_GATT_CHRC_READ, BT_GATT_PERM_READ,
read_tx_power_level, NULL, NULL),
);