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