linux/drivers/bluetooth/hci_h4.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *
 *  Bluetooth HCI UART driver
 *
 *  Copyright (C) 2000-2001  Qualcomm Incorporated
 *  Copyright (C) 2002-2003  Maxim Krasnyansky <[email protected]>
 *  Copyright (C) 2004-2005  Marcel Holtmann <[email protected]>
 */

#include <linux/module.h>

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/fcntl.h>
#include <linux/interrupt.h>
#include <linux/ptrace.h>
#include <linux/poll.h>

#include <linux/slab.h>
#include <linux/tty.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/signal.h>
#include <linux/ioctl.h>
#include <linux/skbuff.h>
#include <asm/unaligned.h>

#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>

#include "hci_uart.h"

struct h4_struct { … };

/* Initialize protocol */
static int h4_open(struct hci_uart *hu)
{ … }

/* Flush protocol data */
static int h4_flush(struct hci_uart *hu)
{ … }

/* Close protocol */
static int h4_close(struct hci_uart *hu)
{ … }

/* Enqueue frame for transmission (padding, crc, etc) */
static int h4_enqueue(struct hci_uart *hu, struct sk_buff *skb)
{ … }

static const struct h4_recv_pkt h4_recv_pkts[] = …;

/* Recv data */
static int h4_recv(struct hci_uart *hu, const void *data, int count)
{ … }

static struct sk_buff *h4_dequeue(struct hci_uart *hu)
{ … }

static const struct hci_uart_proto h4p = …;

int __init h4_init(void)
{ … }

int __exit h4_deinit(void)
{ … }

struct sk_buff *h4_recv_buf(struct hci_dev *hdev, struct sk_buff *skb,
			    const unsigned char *buffer, int count,
			    const struct h4_recv_pkt *pkts, int pkts_count)
{ … }
EXPORT_SYMBOL_GPL(…);