/** @file
 *  @brief Bluetooth UUID handling
 */

/*
 * Copyright (c) 2015 Intel Corporation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#ifndef __BT_UUID_H
#define __BT_UUID_H

#include <misc/util.h>

#ifdef __cplusplus
extern "C" {
#endif

/** @brief Bluetooth UUID types */
enum {
	BT_UUID_TYPE_16,
	BT_UUID_TYPE_128,
};

/** @brief This is a 'tentative' type and should be used as a pointer only */
struct bt_uuid {
	uint8_t type;
};

struct bt_uuid_16 {
	struct bt_uuid uuid;
	uint16_t val;
};

struct bt_uuid_128 {
	struct bt_uuid uuid;
	uint8_t val[16];
};

#define BT_UUID_INIT_16(value)		\
{					\
	.uuid.type = BT_UUID_TYPE_16,	\
	.val = (value),			\
}

#define BT_UUID_INIT_128(value...)	\
{					\
	.uuid.type = BT_UUID_TYPE_128,	\
	.val = { value },		\
}

#define BT_UUID_DECLARE_16(value) \
	((struct bt_uuid *) (&(struct bt_uuid_16) BT_UUID_INIT_16(value)))
#define BT_UUID_DECLARE_128(value...) \
	((struct bt_uuid *) (&(struct bt_uuid_128) BT_UUID_INIT_128(value)))

#define BT_UUID_16(__u) CONTAINER_OF(__u, struct bt_uuid_16, uuid)
#define BT_UUID_128(__u) CONTAINER_OF(__u, struct bt_uuid_128, uuid)

/** @def BBT_UUID_GAP
 *  @brief Generic Access
 */
#define BT_UUID_GAP				BT_UUID_DECLARE_16(0x1800)
#define BT_UUID_GAP_VAL				0x1800
/** @def BBT_UUID_GATT
 *  @brief Generic Attribute
 */
#define BT_UUID_GATT				BT_UUID_DECLARE_16(0x1801)
#define BT_UUID_GATT_VAL			0x1801
/** @def BBT_UUID_CTS
 *  @brief Current Time Service
 */
#define BT_UUID_CTS				BT_UUID_DECLARE_16(0x1805)
#define BT_UUID_CTS_VAL				0x1805
/** @def BBT_UUID_DIS
 *  @brief Device Information Service
 */
#define BT_UUID_DIS				BT_UUID_DECLARE_16(0x180a)
#define BT_UUID_DIS_VAL				0x180a
/** @def BBT_UUID_HRS
 *  @brief Heart Rate Service
 */
#define BT_UUID_HRS				BT_UUID_DECLARE_16(0x180d)
#define BT_UUID_HRS_VAL				0x180d
/** @def BBT_UUID_BAS
 *  @brief Battery Service
 */
#define BT_UUID_BAS				BT_UUID_DECLARE_16(0x180f)
#define BT_UUID_BAS_VAL				0x180f
/** @def BT_UUID_IPSP
 *  @brief IP Support Service
 */
#define BT_UUID_IPSS				BT_UUID_DECLARE_16(0x1820)
#define BT_UUID_IPSS_VAL			0x1820
/** @def BT_UUID_GATT_PRIMARY
 *  @brief GATT Primary Service
 */
#define BT_UUID_GATT_PRIMARY			BT_UUID_DECLARE_16(0x2800)
#define BT_UUID_GATT_PRIMARY_VAL		0x2800
/** @def BT_UUID_GATT_SECONDARY
 *  @brief GATT Secondary Service
 */
#define BT_UUID_GATT_SECONDARY			BT_UUID_DECLARE_16(0x2801)
#define BT_UUID_GATT_SECONDARY_VAL		0x2801
/** @def BT_UUID_GATT_INCLUDE
 *  @brief GATT Include Service
 */
#define BT_UUID_GATT_INCLUDE			BT_UUID_DECLARE_16(0x2802)
#define BT_UUID_GATT_INCLUDE_VAL		0x2802
/** @def BT_UUID_GATT_CHRC
 *  @brief GATT Characteristic
 */
#define BT_UUID_GATT_CHRC			BT_UUID_DECLARE_16(0x2803)
#define BT_UUID_GATT_CHRC_VAL			0x2803
/** @def BT_UUID_GATT_CEP
 *  @brief GATT Characteristic Extended Properties
 */
#define BT_UUID_GATT_CEP			BT_UUID_DECLARE_16(0x2900)
#define BT_UUID_GATT_CEP_VAL			0x2900
/** @def BT_UUID_GATT_CUD
 *  @brief GATT Characteristic User Description
 */
#define BT_UUID_GATT_CUD			BT_UUID_DECLARE_16(0x2901)
#define BT_UUID_GATT_CUD_VAL			0x2901
/** @def BT_UUID_GATT_CCC
 *  @brief GATT Client Characteristic Configuration
 */
#define BT_UUID_GATT_CCC			BT_UUID_DECLARE_16(0x2902)
#define BT_UUID_GATT_CCC_VAL			0x2902
/** @def BT_UUID_GATT_SCC
 *  @brief GATT Server Characteristic Configuration
 */
#define BT_UUID_GATT_SCC			BT_UUID_DECLARE_16(0x2903)
#define BT_UUID_GATT_SCC_VAL			0x2903
/** @def BT_UUID_GATT_CPF
 *  @brief GATT Characteristic Presentation Format
 */
#define BT_UUID_GATT_CPF			BT_UUID_DECLARE_16(0x2904)
#define BT_UUID_GATT_CPF_VAL			0x2904
/** @def BT_UUID_GAP_DEVICE_NAME
 *  @brief GAP Characteristic Device Name
 */
#define BT_UUID_GAP_DEVICE_NAME			BT_UUID_DECLARE_16(0x2a00)
#define BT_UUID_GAP_DEVICE_NAME_VAL		0x2a00
/** @def BT_UUID_GAP_APPEARANCE
 *  @brief GAP Characteristic Appearance
 */
#define BT_UUID_GAP_APPEARANCE			BT_UUID_DECLARE_16(0x2a01)
#define BT_UUID_GAP_APPEARANCE_VAL		0x2a01
/** @def BT_UUID_GAP_PPCP
 *  @brief GAP Characteristic Peripheral Preferred Connection Parameters
 */
#define BT_UUID_GAP_PPCP			BT_UUID_DECLARE_16(0x2a04)
#define BT_UUID_GAP_PPCP_VAL			0x2a04
/** @def BT_UUID_BAS_BATTERY_LEVEL
 *  @brief BAS Characteristic Battery Level
 */
#define BT_UUID_BAS_BATTERY_LEVEL		BT_UUID_DECLARE_16(0x2a19)
#define BT_UUID_BAS_BATTERY_LEVEL_VAL		0x2a19
/** @def BT_UUID_DIS_SYSTEM_ID
 *  @brief DIS Characteristic System ID
 */
#define BT_UUID_DIS_SYSTEM_ID			BT_UUID_DECLARE_16(0x2a23)
#define BT_UUID_DIS_SYSTEM_ID_VAL		0x2a23
/** @def BT_UUID_DIS_MODEL_NUMBER
 *  @brief DIS Characteristic Model Number String
 */
#define BT_UUID_DIS_MODEL_NUMBER		BT_UUID_DECLARE_16(0x2a24)
#define BT_UUID_DIS_MODEL_NUMBER_VAL		0x2a24
/** @def BT_UUID_DIS_SERIAL_NUMBER
 *  @brief DIS Characteristic Serial Number String
 */
#define BT_UUID_DIS_SERIAL_NUMBER		BT_UUID_DECLARE_16(0x2a25)
#define BT_UUID_DIS_SERIAL_NUMBER_VAL		0x2a25
/** @def BT_UUID_DIS_FIRMWARE_REVISION
 *  @brief DIS Characteristic Firmware Revision String
 */
#define BT_UUID_DIS_FIRMWARE_REVISION		BT_UUID_DECLARE_16(0x2a26)
#define BT_UUID_DIS_FIRMWARE_REVISION_VAL	0x2a26
/** @def BT_UUID_DIS_HARDWARE_REVISION
 *  @brief DIS Characteristic Hardware Revision String
 */
#define BT_UUID_DIS_HARDWARE_REVISION		BT_UUID_DECLARE_16(0x2a27)
#define BT_UUID_DIS_HARDWARE_REVISION_VAL	0x2a27
/** @def BT_UUID_DIS_SOFTWARE_REVISION
 *  @brief DIS Characteristic Software Revision String
 */
#define BT_UUID_DIS_SOFTWARE_REVISION		BT_UUID_DECLARE_16(0x2a28)
#define BT_UUID_DIS_SOFTWARE_REVISION_VAL	0x2a28
/** @def BT_UUID_DIS_MANUFACTURER_NAME
 *  @brief DIS Characteristic Manufacturer Name String
 */
#define BT_UUID_DIS_MANUFACTURER_NAME		BT_UUID_DECLARE_16(0x2a29)
#define BT_UUID_DIS_MANUFACTURER_NAME_VAL	0x2a29
/** @def BT_UUID_DIS_PNP_ID
 *  @brief DIS Characteristic PnP ID
 */
#define BT_UUID_DIS_PNP_ID			BT_UUID_DECLARE_16(0x2a50)
#define BT_UUID_DIS_PNP_ID_VAL			0x2a50
/** @def BT_UUID_CTS_CURRENT_TIME
 *  @brief CTS Characteristic Current Time
 */
#define BT_UUID_CTS_CURRENT_TIME		BT_UUID_DECLARE_16(0x2a2b)
#define BT_UUID_CTS_CURRENT_TIME_VAL		0x2a2b
/** @def BT_UUID_HR_MEASUREMENT
 *  @brief HRS Characteristic Measurement Interval
 */
#define BT_UUID_HRS_MEASUREMENT			BT_UUID_DECLARE_16(0x2a37)
#define BT_UUID_HRS_MEASUREMENT_VAL		0x2a37
/** @def BT_UUID_HRS_BODY_SENSOR
 *  @brief HRS Characteristic Body Sensor Location
 */
#define BT_UUID_HRS_BODY_SENSOR			BT_UUID_DECLARE_16(0x2a38)
#define BT_UUID_HRS_BODY_SENSOR_VAL		0x2a38
/** @def BT_UUID_HR_CONTROL_POINT
 *  @brief HRS Characteristic Control Point
 */
#define BT_UUID_HRS_CONTROL_POINT		BT_UUID_DECLARE_16(0x2a39)
#define BT_UUID_HRS_CONTROL_POINT_VAL		0x2a39

/** @brief Compare Bluetooth UUIDs.
 *
 *  Compares 2 Bluetooth UUIDs, if the types are different both UUIDs are
 *  first converted to 128 bits format before comparing.
 *
 *  @param u1 First Bluetooth UUID to compare
 *  @param u2 Second Bluetooth UUID to compare
 *
 *  @return negative value if <u1> < <u2>, 0 if <u1> == <u2>, else positive
 */
int bt_uuid_cmp(const struct bt_uuid *u1, const struct bt_uuid *u2);

#if defined(CONFIG_BLUETOOTH_DEBUG)
/** @brief Convert Bluetooth UUID to string.
 *
 *  Converts Bluetooth UUID to string. UUID has to be in 16 bits or 128 bits
 *  format.
 *
 *  @param uuid Bluetooth UUID
 *  @param str pointer where to put converted string
 *  @param len length of str
 *
 *  @return N/A
 */
void bt_uuid_to_str(const struct bt_uuid *uuid, char *str, size_t len);

/** @brief Convert Bluetooth UUID to string in place.
 *
 *  Converts Bluetooth UUID to string in place. UUID has to be in 16 bits or
 *  128 bits format.
 *
 *  @param uuid Bluetooth UUID
 *
 *  @return String representation of the UUID given
 */
const char *bt_uuid_str(const struct bt_uuid *uuid);
#endif /* CONFIG_BLUETOOTH_DEBUG */

#ifdef __cplusplus
}
#endif

#endif /* __BT_UUID_H */