hci_pkt.h

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/*
 * Copyright (c) 2026 Silicon Laboratories Inc.
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_INCLUDE_BLUETOOTH_HCI_PKT_H_
#define ZEPHYR_INCLUDE_BLUETOOTH_HCI_PKT_H_
 
#include <stdint.h>
 
#include <zephyr/bluetooth/hci_types.h>
#include <zephyr/net_buf.h>
 
#ifdef __cplusplus
extern "C" {
#endif


#define BT_HCI_PKT_CMD_HDR_SIZE (sizeof(uint8_t) + BT_HCI_CMD_HDR_SIZE)

#define BT_HCI_PKT_CMD_SIZE(param_len) (BT_HCI_PKT_CMD_HDR_SIZE + (param_len))

#define Z_BT_HCI_PKT_CMD_DEFINE(_name, _max_param_len, _storage)                                  \
        _storage uint8_t net_buf_data_##_name[BT_HCI_PKT_CMD_SIZE(_max_param_len)];                \
        _storage struct net_buf_simple _name = {                                                   \
                .data = net_buf_data_##_name + BT_HCI_PKT_CMD_HDR_SIZE,                            \
                .len = 0,                                                                          \
                .size = BT_HCI_PKT_CMD_SIZE(_max_param_len),                                       \
                .__buf = net_buf_data_##_name,                                                     \
        }

#define BT_HCI_PKT_CMD_DEFINE(_name, _max_param_len)                                               \
        Z_BT_HCI_PKT_CMD_DEFINE(_name, _max_param_len,)

#define BT_HCI_PKT_CMD_DEFINE_STATIC(_name, _max_param_len)                                        \
        Z_BT_HCI_PKT_CMD_DEFINE(_name, _max_param_len, static)

void bt_hci_pkt_reset_cmd(struct net_buf_simple *buf);

int bt_hci_pkt_push_cmd_hdr(struct net_buf_simple *buf, uint16_t opcode);

struct bt_hci_pkt_cmd_rsp {
        uint16_t opcode;
        uint8_t ncmd;
        uint8_t status;
        const uint8_t *rp;
        size_t rp_len;
};

int bt_hci_pkt_pull_cmd_complete(struct net_buf_simple *buf, struct bt_hci_pkt_cmd_rsp *rsp);

int bt_hci_pkt_pull_cmd_status(struct net_buf_simple *buf, struct bt_hci_pkt_cmd_rsp *rsp);

int bt_hci_pkt_parse_cmd_rsp(const uint8_t *pkt, size_t len, struct bt_hci_pkt_cmd_rsp *rsp);

 
#ifdef __cplusplus
}
#endif
 
#endif /* ZEPHYR_INCLUDE_BLUETOOTH_HCI_PKT_H_ */