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 10 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 #define HCI_UART_AG6XX 9 50 51 #define HCI_UART_RAW_DEVICE 0 52 #define HCI_UART_RESET_ON_INIT 1 53 #define HCI_UART_CREATE_AMP 2 54 #define HCI_UART_INIT_PENDING 3 55 #define HCI_UART_EXT_CONFIG 4 56 #define HCI_UART_VND_DETECT 5 57 58 struct hci_uart; 59 60 struct hci_uart_proto { 61 unsigned int id; 62 const char *name; 63 unsigned int manufacturer; 64 unsigned int init_speed; 65 unsigned int oper_speed; 66 int (*open)(struct hci_uart *hu); 67 int (*close)(struct hci_uart *hu); 68 int (*flush)(struct hci_uart *hu); 69 int (*setup)(struct hci_uart *hu); 70 int (*set_baudrate)(struct hci_uart *hu, unsigned int speed); 71 int (*recv)(struct hci_uart *hu, const void *data, int len); 72 int (*enqueue)(struct hci_uart *hu, struct sk_buff *skb); 73 struct sk_buff *(*dequeue)(struct hci_uart *hu); 74 }; 75 76 struct hci_uart { 77 struct tty_struct *tty; 78 struct hci_dev *hdev; 79 unsigned long flags; 80 unsigned long hdev_flags; 81 82 struct work_struct init_ready; 83 struct work_struct write_work; 84 85 const struct hci_uart_proto *proto; 86 void *priv; 87 88 struct sk_buff *tx_skb; 89 unsigned long tx_state; 90 91 unsigned int init_speed; 92 unsigned int oper_speed; 93 }; 94 95 /* HCI_UART proto flag bits */ 96 #define HCI_UART_PROTO_SET 0 97 #define HCI_UART_REGISTERED 1 98 99 /* TX states */ 100 #define HCI_UART_SENDING 1 101 #define HCI_UART_TX_WAKEUP 2 102 103 int hci_uart_register_proto(const struct hci_uart_proto *p); 104 int hci_uart_unregister_proto(const struct hci_uart_proto *p); 105 int hci_uart_tx_wakeup(struct hci_uart *hu); 106 int hci_uart_init_ready(struct hci_uart *hu); 107 void hci_uart_init_tty(struct hci_uart *hu); 108 void hci_uart_set_baudrate(struct hci_uart *hu, unsigned int speed); 109 void hci_uart_set_flow_control(struct hci_uart *hu, bool enable); 110 void hci_uart_set_speeds(struct hci_uart *hu, unsigned int init_speed, 111 unsigned int oper_speed); 112 113 #ifdef CONFIG_BT_HCIUART_H4 114 int h4_init(void); 115 int h4_deinit(void); 116 117 struct h4_recv_pkt { 118 u8 type; /* Packet type */ 119 u8 hlen; /* Header length */ 120 u8 loff; /* Data length offset in header */ 121 u8 lsize; /* Data length field size */ 122 u16 maxlen; /* Max overall packet length */ 123 int (*recv)(struct hci_dev *hdev, struct sk_buff *skb); 124 }; 125 126 #define H4_RECV_ACL \ 127 .type = HCI_ACLDATA_PKT, \ 128 .hlen = HCI_ACL_HDR_SIZE, \ 129 .loff = 2, \ 130 .lsize = 2, \ 131 .maxlen = HCI_MAX_FRAME_SIZE \ 132 133 #define H4_RECV_SCO \ 134 .type = HCI_SCODATA_PKT, \ 135 .hlen = HCI_SCO_HDR_SIZE, \ 136 .loff = 2, \ 137 .lsize = 1, \ 138 .maxlen = HCI_MAX_SCO_SIZE 139 140 #define H4_RECV_EVENT \ 141 .type = HCI_EVENT_PKT, \ 142 .hlen = HCI_EVENT_HDR_SIZE, \ 143 .loff = 1, \ 144 .lsize = 1, \ 145 .maxlen = HCI_MAX_EVENT_SIZE 146 147 struct sk_buff *h4_recv_buf(struct hci_dev *hdev, struct sk_buff *skb, 148 const unsigned char *buffer, int count, 149 const struct h4_recv_pkt *pkts, int pkts_count); 150 #endif 151 152 #ifdef CONFIG_BT_HCIUART_BCSP 153 int bcsp_init(void); 154 int bcsp_deinit(void); 155 #endif 156 157 #ifdef CONFIG_BT_HCIUART_LL 158 int ll_init(void); 159 int ll_deinit(void); 160 #endif 161 162 #ifdef CONFIG_BT_HCIUART_ATH3K 163 int ath_init(void); 164 int ath_deinit(void); 165 #endif 166 167 #ifdef CONFIG_BT_HCIUART_3WIRE 168 int h5_init(void); 169 int h5_deinit(void); 170 #endif 171 172 #ifdef CONFIG_BT_HCIUART_INTEL 173 int intel_init(void); 174 int intel_deinit(void); 175 #endif 176 177 #ifdef CONFIG_BT_HCIUART_BCM 178 int bcm_init(void); 179 int bcm_deinit(void); 180 #endif 181 182 #ifdef CONFIG_BT_HCIUART_QCA 183 int qca_init(void); 184 int qca_deinit(void); 185 #endif 186 187 #ifdef CONFIG_BT_HCIUART_AG6XX 188 int ag6xx_init(void); 189 int ag6xx_deinit(void); 190 #endif 191