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| \/ | \ \ / / | __ \ (_) | | / ____| | | | |
| \ / |_ __\ V / | |__) | __ ___ ____ _| |_ ___ | (___ | |__ ___| | |
| |\/| | '__|> < | ___/ '__| \ \ / / _` | __/ _ \ \___ \| '_ \ / _ \ | |
| | | | |_ / . \ | | | | | |\ V / (_| | || __/ ____) | | | | __/ | |
|_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1
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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2025 Google Corporation
*/
#ifndef __HCI_DRV_H
#define __HCI_DRV_H
#include <linux/types.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci.h>
struct hci_drv_cmd_hdr {
__le16 opcode;
__le16 len;
} __packed;
struct hci_drv_ev_hdr {
__le16 opcode;
__le16 len;
} __packed;
#define HCI_DRV_EV_CMD_STATUS 0x0000
struct hci_drv_ev_cmd_status {
__le16 opcode;
__u8 status;
} __packed;
#define HCI_DRV_EV_CMD_COMPLETE 0x0001
struct hci_drv_ev_cmd_complete {
__le16 opcode;
__u8 status;
__u8 data[];
} __packed;
#define HCI_DRV_STATUS_SUCCESS 0x00
#define HCI_DRV_STATUS_UNSPECIFIED_ERROR 0x01
#define HCI_DRV_STATUS_UNKNOWN_COMMAND 0x02
#define HCI_DRV_STATUS_INVALID_PARAMETERS 0x03
#define HCI_DRV_MAX_DRIVER_NAME_LENGTH 32
/* Common commands that make sense on all drivers start from 0x0000 */
#define HCI_DRV_OP_READ_INFO 0x0000
#define HCI_DRV_READ_INFO_SIZE 0
struct hci_drv_rp_read_info {
__u8 driver_name[HCI_DRV_MAX_DRIVER_NAME_LENGTH];
__le16 num_supported_commands;
__le16 supported_commands[];
} __packed;
/* Driver specific OGF (Opcode Group Field)
* Commands in this group may have different meanings across different drivers.
*/
#define HCI_DRV_OGF_DRIVER_SPECIFIC 0x01
int hci_drv_cmd_status(struct hci_dev *hdev, u16 cmd, u8 status);
int hci_drv_cmd_complete(struct hci_dev *hdev, u16 cmd, u8 status, void *rp,
size_t rp_len);
int hci_drv_process_cmd(struct hci_dev *hdev, struct sk_buff *cmd_skb);
struct hci_drv_handler {
int (*func)(struct hci_dev *hdev, void *data, u16 data_len);
size_t data_len;
};
struct hci_drv {
size_t common_handler_count;
const struct hci_drv_handler *common_handlers;
size_t specific_handler_count;
const struct hci_drv_handler *specific_handlers;
};
#endif /* __HCI_DRV_H */