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 9 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 #define HCI_UART_QCA 8 49 50 #define HCI_UART_RAW_DEVICE 0 51 #define HCI_UART_RESET_ON_INIT 1 52 #define HCI_UART_CREATE_AMP 2 53 #define HCI_UART_INIT_PENDING 3 54 #define HCI_UART_EXT_CONFIG 4 55 #define HCI_UART_VND_DETECT 5 56 57 struct hci_uart; 58 59 struct hci_uart_proto { 60 unsigned int id; 61 const char *name; 62 unsigned int manufacturer; 63 unsigned int init_speed; 64 unsigned int oper_speed; 65 int (*open)(struct hci_uart *hu); 66 int (*close)(struct hci_uart *hu); 67 int (*flush)(struct hci_uart *hu); 68 int (*setup)(struct hci_uart *hu); 69 int (*set_baudrate)(struct hci_uart *hu, unsigned int speed); 70 int (*recv)(struct hci_uart *hu, const void *data, int len); 71 int (*enqueue)(struct hci_uart *hu, struct sk_buff *skb); 72 struct sk_buff *(*dequeue)(struct hci_uart *hu); 73 }; 74 75 struct hci_uart { 76 struct tty_struct *tty; 77 struct hci_dev *hdev; 78 unsigned long flags; 79 unsigned long hdev_flags; 80 81 struct work_struct init_ready; 82 struct work_struct write_work; 83 84 const struct hci_uart_proto *proto; 85 void *priv; 86 87 struct sk_buff *tx_skb; 88 unsigned long tx_state; 89 90 unsigned int init_speed; 91 unsigned int oper_speed; 92 }; 93 94 /* HCI_UART proto flag bits */ 95 #define HCI_UART_PROTO_SET 0 96 #define HCI_UART_REGISTERED 1 97 98 /* TX states */ 99 #define HCI_UART_SENDING 1 100 #define HCI_UART_TX_WAKEUP 2 101 102 int hci_uart_register_proto(const struct hci_uart_proto *p); 103 int hci_uart_unregister_proto(const struct hci_uart_proto *p); 104 int hci_uart_tx_wakeup(struct hci_uart *hu); 105 int hci_uart_init_ready(struct hci_uart *hu); 106 void hci_uart_init_tty(struct hci_uart *hu); 107 void hci_uart_set_baudrate(struct hci_uart *hu, unsigned int speed); 108 void hci_uart_set_flow_control(struct hci_uart *hu, bool enable); 109 void hci_uart_set_speeds(struct hci_uart *hu, unsigned int init_speed, 110 unsigned int oper_speed); 111 112 #ifdef CONFIG_BT_HCIUART_H4 113 int h4_init(void); 114 int h4_deinit(void); 115 116 struct h4_recv_pkt { 117 u8 type; /* Packet type */ 118 u8 hlen; /* Header length */ 119 u8 loff; /* Data length offset in header */ 120 u8 lsize; /* Data length field size */ 121 u16 maxlen; /* Max overall packet length */ 122 int (*recv)(struct hci_dev *hdev, struct sk_buff *skb); 123 }; 124 125 #define H4_RECV_ACL \ 126 .type = HCI_ACLDATA_PKT, \ 127 .hlen = HCI_ACL_HDR_SIZE, \ 128 .loff = 2, \ 129 .lsize = 2, \ 130 .maxlen = HCI_MAX_FRAME_SIZE \ 131 132 #define H4_RECV_SCO \ 133 .type = HCI_SCODATA_PKT, \ 134 .hlen = HCI_SCO_HDR_SIZE, \ 135 .loff = 2, \ 136 .lsize = 1, \ 137 .maxlen = HCI_MAX_SCO_SIZE 138 139 #define H4_RECV_EVENT \ 140 .type = HCI_EVENT_PKT, \ 141 .hlen = HCI_EVENT_HDR_SIZE, \ 142 .loff = 1, \ 143 .lsize = 1, \ 144 .maxlen = HCI_MAX_EVENT_SIZE 145 146 struct sk_buff *h4_recv_buf(struct hci_dev *hdev, struct sk_buff *skb, 147 const unsigned char *buffer, int count, 148 const struct h4_recv_pkt *pkts, int pkts_count); 149 #endif 150 151 #ifdef CONFIG_BT_HCIUART_BCSP 152 int bcsp_init(void); 153 int bcsp_deinit(void); 154 #endif 155 156 #ifdef CONFIG_BT_HCIUART_LL 157 int ll_init(void); 158 int ll_deinit(void); 159 #endif 160 161 #ifdef CONFIG_BT_HCIUART_ATH3K 162 int ath_init(void); 163 int ath_deinit(void); 164 #endif 165 166 #ifdef CONFIG_BT_HCIUART_3WIRE 167 int h5_init(void); 168 int h5_deinit(void); 169 #endif 170 171 #ifdef CONFIG_BT_HCIUART_INTEL 172 int intel_init(void); 173 int intel_deinit(void); 174 #endif 175 176 #ifdef CONFIG_BT_HCIUART_BCM 177 int bcm_init(void); 178 int bcm_deinit(void); 179 #endif 180 181 #ifdef CONFIG_BT_HCIUART_QCA 182 int qca_init(void); 183 int qca_deinit(void); 184 #endif 185