/*
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*
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* Bluetooth HCI UART driver
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*
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* Copyright (C) 2000-2001 Qualcomm Incorporated
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* Copyright (C) 2002-2003 Maxim Krasnyansky <maxk@qualcomm.com>
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* Copyright (C) 2004-2005 Marcel Holtmann <marcel@holtmann.org>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <linux/version.h>
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#include <net/bluetooth/bluetooth.h>
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#include <net/bluetooth/hci_core.h>
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/* #define HCI_VERSION_CODE KERNEL_VERSION(3, 14, 41) */
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#define HCI_VERSION_CODE LINUX_VERSION_CODE
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#ifndef N_HCI
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#define N_HCI 15
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#endif
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#ifndef CONFIG_BT_HCIUART_H4
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#define CONFIG_BT_HCIUART_H4
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#endif
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#define BTCOEX
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/* Send host sleep notification to Controller */
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#define WOBT_NOTIFY 0 /* 1 enable; 0 disable */
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/* Send LE whitelist only for Background scan parameters */
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#define WOBT_NOTIFY_BG_SCAN_LE_WHITELIST_ONLY (0 * WOBT_NOTIFY) /* 1 enable; 0 disable */
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/* RTKBT Power-on Whitelist for sideband wake-up by LE Advertising from Remote.
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* Note that it's necessary to apply TV FW Patch. */
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#define RTKBT_TV_POWERON_WHITELIST (0 * WOBT_NOTIFY) /* 1 enable; 0 disable */
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/* Ioctls */
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#define HCIUARTSETPROTO _IOW('U', 200, int)
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#define HCIUARTGETPROTO _IOR('U', 201, int)
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#define HCIUARTGETDEVICE _IOR('U', 202, int)
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#define HCIUARTSETFLAGS _IOW('U', 203, int)
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#define HCIUARTGETFLAGS _IOR('U', 204, int)
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/* UART protocols */
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#define HCI_UART_MAX_PROTO 6
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#define HCI_UART_H4 0
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#define HCI_UART_BCSP 1
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#define HCI_UART_3WIRE 2
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#define HCI_UART_H4DS 3
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#define HCI_UART_LL 4
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#define HCI_UART_ATH3K 5
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#define HCI_UART_RAW_DEVICE 0
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#define HCI_UART_RESET_ON_INIT 1
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#define HCI_UART_CREATE_AMP 2
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#define HCI_UART_INIT_PENDING 3
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#define HCI_UART_EXT_CONFIG 4
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#define HCI_UART_VND_DETECT 5
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struct hci_uart;
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struct hci_uart_proto {
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unsigned int id;
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int (*open)(struct hci_uart *hu);
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int (*close)(struct hci_uart *hu);
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int (*flush)(struct hci_uart *hu);
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int (*recv)(struct hci_uart *hu, void *data, int len);
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int (*enqueue)(struct hci_uart *hu, struct sk_buff *skb);
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struct sk_buff *(*dequeue)(struct hci_uart *hu);
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};
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struct hci_uart {
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struct tty_struct *tty;
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struct hci_dev *hdev;
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unsigned long flags;
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unsigned long hdev_flags;
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struct work_struct write_work;
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struct workqueue_struct *hci_uart_wq;
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struct hci_uart_proto *proto;
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0)
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struct percpu_rw_semaphore proto_lock; /* Stop work for proto close */
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#else
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struct rw_semaphore proto_lock;
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#endif
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void *priv;
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struct semaphore tx_sem; /* semaphore for tx */
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struct sk_buff *tx_skb;
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unsigned long tx_state;
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#if WOBT_NOTIFY
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struct notifier_block pm_notify_block;
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#endif
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};
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/* HCI_UART proto flag bits */
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#define HCI_UART_PROTO_SET 0
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#define HCI_UART_REGISTERED 1
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#define HCI_UART_PROTO_READY 2
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/* TX states */
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#define HCI_UART_SENDING 1
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#define HCI_UART_TX_WAKEUP 2
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extern int hci_uart_register_proto(struct hci_uart_proto *p);
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extern int hci_uart_unregister_proto(struct hci_uart_proto *p);
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extern int hci_uart_tx_wakeup(struct hci_uart *hu);
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#ifdef CONFIG_BT_HCIUART_H4
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extern int h4_init(void);
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extern int h4_deinit(void);
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#endif
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extern int h5_init(void);
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extern int h5_deinit(void);
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#if HCI_VERSION_CODE < KERNEL_VERSION(3, 13, 0)
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extern int hci_uart_send_frame(struct sk_buff *skb);
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#else
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extern int hci_uart_send_frame(struct hci_dev *hdev, struct sk_buff *skb);
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#endif
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