1 /* 2 * 3 * Bluetooth HCI UART driver 4 * 5 * Copyright (C) 2000-2001 Qualcomm Incorporated 6 * Copyright (C) 2002-2003 Maxim Krasnyansky <maxk@qualcomm.com> 7 * Copyright (C) 2004-2005 Marcel Holtmann <marcel@holtmann.org> 8 * 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License as published by 12 * the Free Software Foundation; either version 2 of the License, or 13 * (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 23 * 24 */ 25 26 #ifndef N_HCI 27 #define N_HCI 15 28 #endif 29 30 /* Ioctls */ 31 #define HCIUARTSETPROTO _IOW('U', 200, int) 32 #define HCIUARTGETPROTO _IOR('U', 201, int) 33 #define HCIUARTGETDEVICE _IOR('U', 202, int) 34 #define HCIUARTSETFLAGS _IOW('U', 203, int) 35 #define HCIUARTGETFLAGS _IOR('U', 204, int) 36 37 /* UART protocols */ 38 #define HCI_UART_MAX_PROTO 6 39 40 #define HCI_UART_H4 0 41 #define HCI_UART_BCSP 1 42 #define HCI_UART_3WIRE 2 43 #define HCI_UART_H4DS 3 44 #define HCI_UART_LL 4 45 #define HCI_UART_ATH3K 5 46 47 #define HCI_UART_RAW_DEVICE 0 48 49 struct hci_uart; 50 51 struct hci_uart_proto { 52 unsigned int id; 53 int (*open)(struct hci_uart *hu); 54 int (*close)(struct hci_uart *hu); 55 int (*flush)(struct hci_uart *hu); 56 int (*recv)(struct hci_uart *hu, void *data, int len); 57 int (*enqueue)(struct hci_uart *hu, struct sk_buff *skb); 58 struct sk_buff *(*dequeue)(struct hci_uart *hu); 59 }; 60 61 struct hci_uart { 62 struct tty_struct *tty; 63 struct hci_dev *hdev; 64 unsigned long flags; 65 unsigned long hdev_flags; 66 67 struct hci_uart_proto *proto; 68 void *priv; 69 70 struct sk_buff *tx_skb; 71 unsigned long tx_state; 72 spinlock_t rx_lock; 73 }; 74 75 /* HCI_UART proto flag bits */ 76 #define HCI_UART_PROTO_SET 0 77 78 /* TX states */ 79 #define HCI_UART_SENDING 1 80 #define HCI_UART_TX_WAKEUP 2 81 82 int hci_uart_register_proto(struct hci_uart_proto *p); 83 int hci_uart_unregister_proto(struct hci_uart_proto *p); 84 int hci_uart_tx_wakeup(struct hci_uart *hu); 85 86 #ifdef CONFIG_BT_HCIUART_H4 87 int h4_init(void); 88 int h4_deinit(void); 89 #endif 90 91 #ifdef CONFIG_BT_HCIUART_BCSP 92 int bcsp_init(void); 93 int bcsp_deinit(void); 94 #endif 95 96 #ifdef CONFIG_BT_HCIUART_LL 97 int ll_init(void); 98 int ll_deinit(void); 99 #endif 100 101 #ifdef CONFIG_BT_HCIUART_ATH3K 102 int ath_init(void); 103 int ath_deinit(void); 104 #endif 105