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 8 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 #define HCI_UART_INTEL 6 47 #define HCI_UART_BCM 7 48 49 #define HCI_UART_RAW_DEVICE 0 50 #define HCI_UART_RESET_ON_INIT 1 51 #define HCI_UART_CREATE_AMP 2 52 #define HCI_UART_INIT_PENDING 3 53 #define HCI_UART_EXT_CONFIG 4 54 #define HCI_UART_VND_DETECT 5 55 56 struct hci_uart; 57 58 struct hci_uart_proto { 59 unsigned int id; 60 const char *name; 61 int (*open)(struct hci_uart *hu); 62 int (*close)(struct hci_uart *hu); 63 int (*flush)(struct hci_uart *hu); 64 int (*setup)(struct hci_uart *hu); 65 int (*recv)(struct hci_uart *hu, const void *data, int len); 66 int (*enqueue)(struct hci_uart *hu, struct sk_buff *skb); 67 struct sk_buff *(*dequeue)(struct hci_uart *hu); 68 }; 69 70 struct hci_uart { 71 struct tty_struct *tty; 72 struct hci_dev *hdev; 73 unsigned long flags; 74 unsigned long hdev_flags; 75 76 struct work_struct init_ready; 77 struct work_struct write_work; 78 79 const struct hci_uart_proto *proto; 80 void *priv; 81 82 struct sk_buff *tx_skb; 83 unsigned long tx_state; 84 spinlock_t rx_lock; 85 }; 86 87 /* HCI_UART proto flag bits */ 88 #define HCI_UART_PROTO_SET 0 89 #define HCI_UART_REGISTERED 1 90 91 /* TX states */ 92 #define HCI_UART_SENDING 1 93 #define HCI_UART_TX_WAKEUP 2 94 95 int hci_uart_register_proto(const struct hci_uart_proto *p); 96 int hci_uart_unregister_proto(const struct hci_uart_proto *p); 97 int hci_uart_tx_wakeup(struct hci_uart *hu); 98 int hci_uart_init_ready(struct hci_uart *hu); 99 100 #ifdef CONFIG_BT_HCIUART_H4 101 int h4_init(void); 102 int h4_deinit(void); 103 104 struct h4_recv_pkt { 105 u8 type; /* Packet type */ 106 u8 hlen; /* Header length */ 107 u8 loff; /* Data length offset in header */ 108 u8 lsize; /* Data length field size */ 109 u16 maxlen; /* Max overall packet length */ 110 int (*recv)(struct hci_dev *hdev, struct sk_buff *skb); 111 }; 112 113 #define H4_RECV_ACL \ 114 .type = HCI_ACLDATA_PKT, \ 115 .hlen = HCI_ACL_HDR_SIZE, \ 116 .loff = 2, \ 117 .lsize = 2, \ 118 .maxlen = HCI_MAX_FRAME_SIZE \ 119 120 #define H4_RECV_SCO \ 121 .type = HCI_SCODATA_PKT, \ 122 .hlen = HCI_SCO_HDR_SIZE, \ 123 .loff = 2, \ 124 .lsize = 1, \ 125 .maxlen = HCI_MAX_SCO_SIZE 126 127 #define H4_RECV_EVENT \ 128 .type = HCI_EVENT_PKT, \ 129 .hlen = HCI_EVENT_HDR_SIZE, \ 130 .loff = 1, \ 131 .lsize = 1, \ 132 .maxlen = HCI_MAX_EVENT_SIZE 133 134 struct sk_buff *h4_recv_buf(struct hci_dev *hdev, struct sk_buff *skb, 135 const unsigned char *buffer, int count, 136 const struct h4_recv_pkt *pkts, int pkts_count); 137 #endif 138 139 #ifdef CONFIG_BT_HCIUART_BCSP 140 int bcsp_init(void); 141 int bcsp_deinit(void); 142 #endif 143 144 #ifdef CONFIG_BT_HCIUART_LL 145 int ll_init(void); 146 int ll_deinit(void); 147 #endif 148 149 #ifdef CONFIG_BT_HCIUART_ATH3K 150 int ath_init(void); 151 int ath_deinit(void); 152 #endif 153 154 #ifdef CONFIG_BT_HCIUART_3WIRE 155 int h5_init(void); 156 int h5_deinit(void); 157 #endif 158 159 #ifdef CONFIG_BT_HCIUART_BCM 160 int bcm_init(void); 161 int bcm_deinit(void); 162 #endif 163