| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame] | 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 | #define HCI_UART_RESET_ON_INIT 1 |
| 49 | #define HCI_UART_CREATE_AMP 2 |
| 50 | |
| 51 | struct hci_uart; |
| 52 | |
| 53 | struct hci_uart_proto { |
| 54 | unsigned int id; |
| 55 | int (*open)(struct hci_uart *hu); |
| 56 | int (*close)(struct hci_uart *hu); |
| 57 | int (*flush)(struct hci_uart *hu); |
| 58 | int (*recv)(struct hci_uart *hu, void *data, int len); |
| 59 | int (*enqueue)(struct hci_uart *hu, struct sk_buff *skb); |
| 60 | struct sk_buff *(*dequeue)(struct hci_uart *hu); |
| 61 | }; |
| 62 | |
| 63 | struct hci_uart { |
| 64 | struct tty_struct *tty; |
| 65 | struct hci_dev *hdev; |
| 66 | unsigned long flags; |
| 67 | unsigned long hdev_flags; |
| 68 | |
| 69 | struct work_struct write_work; |
| 70 | |
| 71 | struct hci_uart_proto *proto; |
| 72 | void *priv; |
| 73 | |
| 74 | struct sk_buff *tx_skb; |
| 75 | unsigned long tx_state; |
| 76 | spinlock_t rx_lock; |
| 77 | }; |
| 78 | |
| 79 | /* HCI_UART proto flag bits */ |
| 80 | #define HCI_UART_PROTO_SET 0 |
| 81 | |
| 82 | /* TX states */ |
| 83 | #define HCI_UART_SENDING 1 |
| 84 | #define HCI_UART_TX_WAKEUP 2 |
| 85 | |
| 86 | int hci_uart_register_proto(struct hci_uart_proto *p); |
| 87 | int hci_uart_unregister_proto(struct hci_uart_proto *p); |
| 88 | int hci_uart_tx_wakeup(struct hci_uart *hu); |
| 89 | |
| 90 | #ifdef CONFIG_BT_HCIUART_H4 |
| 91 | int h4_init(void); |
| 92 | int h4_deinit(void); |
| 93 | #endif |
| 94 | |
| 95 | #ifdef CONFIG_BT_HCIUART_BCSP |
| 96 | int bcsp_init(void); |
| 97 | int bcsp_deinit(void); |
| 98 | #endif |
| 99 | |
| 100 | #ifdef CONFIG_BT_HCIUART_LL |
| 101 | int ll_init(void); |
| 102 | int ll_deinit(void); |
| 103 | #endif |
| 104 | |
| 105 | #ifdef CONFIG_BT_HCIUART_ATH3K |
| 106 | int ath_init(void); |
| 107 | int ath_deinit(void); |
| 108 | #endif |