ras.h

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/*
 * Copyright (c) 2024 Nordic Semiconductor ASA
 *
 * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
 */
 
#ifndef BT_RAS_H_
#define BT_RAS_H_
 
#include <stdint.h>
#include <zephyr/kernel.h>
#include <zephyr/bluetooth/conn.h>
#include <zephyr/bluetooth/uuid.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define BT_UUID_RANGING_SERVICE_VAL (0x185B)
 
#define BT_UUID_RAS_FEATURES_VAL (0x2C14)
 
#define BT_UUID_RAS_REALTIME_RD_VAL (0x2C15)
 
#define BT_UUID_RAS_ONDEMAND_RD_VAL (0x2C16)
 
#define BT_UUID_RAS_CP_VAL (0x2C17)
 
#define BT_UUID_RAS_RD_READY_VAL (0x2C18)
 
#define BT_UUID_RAS_RD_OVERWRITTEN_VAL (0x2C19)
 
#define BT_UUID_RANGING_SERVICE    BT_UUID_DECLARE_16(BT_UUID_RANGING_SERVICE_VAL)
#define BT_UUID_RAS_FEATURES       BT_UUID_DECLARE_16(BT_UUID_RAS_FEATURES_VAL)
#define BT_UUID_RAS_REALTIME_RD    BT_UUID_DECLARE_16(BT_UUID_RAS_REALTIME_RD_VAL)
#define BT_UUID_RAS_ONDEMAND_RD    BT_UUID_DECLARE_16(BT_UUID_RAS_ONDEMAND_RD_VAL)
#define BT_UUID_RAS_CP             BT_UUID_DECLARE_16(BT_UUID_RAS_CP_VAL)
#define BT_UUID_RAS_RD_READY       BT_UUID_DECLARE_16(BT_UUID_RAS_RD_READY_VAL)
#define BT_UUID_RAS_RD_OVERWRITTEN BT_UUID_DECLARE_16(BT_UUID_RAS_RD_OVERWRITTEN_VAL)
 
#define BT_RAS_RANGING_HEADER_LEN  4
#define BT_RAS_SUBEVENT_HEADER_LEN 8
#define BT_RAS_STEP_MODE_LEN       1
#define BT_RAS_MAX_STEP_DATA_LEN   35
 
struct ras_ranging_header {
        uint16_t ranging_counter : 12;
        uint8_t  config_id       : 4;
        int8_t   selected_tx_power;
        uint8_t  antenna_paths_mask;
} __packed;
BUILD_ASSERT(sizeof(struct ras_ranging_header) == BT_RAS_RANGING_HEADER_LEN);
 
struct ras_subevent_header {
        uint16_t start_acl_conn_event;
        uint16_t freq_compensation;
        uint8_t ranging_done_status   : 4;
        uint8_t subevent_done_status  : 4;
        uint8_t ranging_abort_reason  : 4;
        uint8_t subevent_abort_reason : 4;
        int8_t  ref_power_level;
        uint8_t num_steps_reported;
} __packed;
BUILD_ASSERT(sizeof(struct ras_subevent_header) == BT_RAS_SUBEVENT_HEADER_LEN);
 
#ifdef __cplusplus
}
#endif
 
#endif /* BT_RAS_H_ */