/* * * Bluetooth HCI UART driver * * Copyright (C) 2000-2001 Qualcomm Incorporated * Copyright (C) 2002-2003 Maxim Krasnyansky * Copyright (C) 2004-2005 Marcel Holtmann * * * 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 #include #include /* #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 */ /* RTKBT Power-on Data Filter for Manufacturer field */ /* Note that please edit the datafilter in * rtkbt_set_le_device_poweron_data_filter() of hci_ldisc.c */ #define RTKBT_TV_POWERON_DATA_FILTER (0 * WOBT_NOTIFY) /* 1 enable; 0 disable */ #define RTKBT_POWERKEY_WAKEUP /* 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; struct notifier_block shutdown_notifier; #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