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 #define HCI_UART_PROTO_READY 2 99 100 /* TX states */ 101 #define HCI_UART_SENDING 1 102 #define HCI_UART_TX_WAKEUP 2 103 104 int hci_uart_register_proto(const struct hci_uart_proto *p); 105 int hci_uart_unregister_proto(const struct hci_uart_proto *p); 106 int hci_uart_tx_wakeup(struct hci_uart *hu); 107 int hci_uart_init_ready(struct hci_uart *hu); 108 void hci_uart_init_tty(struct hci_uart *hu); 109 void hci_uart_set_baudrate(struct hci_uart *hu, unsigned int speed); 110 void hci_uart_set_flow_control(struct hci_uart *hu, bool enable); 111 void hci_uart_set_speeds(struct hci_uart *hu, unsigned int init_speed, 112 unsigned int oper_speed); 113 114 #ifdef CONFIG_BT_HCIUART_H4 115 int h4_init(void); 116 int h4_deinit(void); 117 118 struct h4_recv_pkt { 119 u8 type; /* Packet type */ 120 u8 hlen; /* Header length */ 121 u8 loff; /* Data length offset in header */ 122 u8 lsize; /* Data length field size */ 123 u16 maxlen; /* Max overall packet length */ 124 int (*recv)(struct hci_dev *hdev, struct sk_buff *skb); 125 }; 126 127 #define H4_RECV_ACL \ 128 .type = HCI_ACLDATA_PKT, \ 129 .hlen = HCI_ACL_HDR_SIZE, \ 130 .loff = 2, \ 131 .lsize = 2, \ 132 .maxlen = HCI_MAX_FRAME_SIZE \ 133 134 #define H4_RECV_SCO \ 135 .type = HCI_SCODATA_PKT, \ 136 .hlen = HCI_SCO_HDR_SIZE, \ 137 .loff = 2, \ 138 .lsize = 1, \ 139 .maxlen = HCI_MAX_SCO_SIZE 140 141 #define H4_RECV_EVENT \ 142 .type = HCI_EVENT_PKT, \ 143 .hlen = HCI_EVENT_HDR_SIZE, \ 144 .loff = 1, \ 145 .lsize = 1, \ 146 .maxlen = HCI_MAX_EVENT_SIZE 147 148 struct sk_buff *h4_recv_buf(struct hci_dev *hdev, struct sk_buff *skb, 149 const unsigned char *buffer, int count, 150 const struct h4_recv_pkt *pkts, int pkts_count); 151 #endif 152 153 #ifdef CONFIG_BT_HCIUART_BCSP 154 int bcsp_init(void); 155 int bcsp_deinit(void); 156 #endif 157 158 #ifdef CONFIG_BT_HCIUART_LL 159 int ll_init(void); 160 int ll_deinit(void); 161 #endif 162 163 #ifdef CONFIG_BT_HCIUART_ATH3K 164 int ath_init(void); 165 int ath_deinit(void); 166 #endif 167 168 #ifdef CONFIG_BT_HCIUART_3WIRE 169 int h5_init(void); 170 int h5_deinit(void); 171 #endif 172 173 #ifdef CONFIG_BT_HCIUART_INTEL 174 int intel_init(void); 175 int intel_deinit(void); 176 #endif 177 178 #ifdef CONFIG_BT_HCIUART_BCM 179 int bcm_init(void); 180 int bcm_deinit(void); 181 #endif 182 183 #ifdef CONFIG_BT_HCIUART_QCA 184 int qca_init(void); 185 int qca_deinit(void); 186 #endif 187 188 #ifdef CONFIG_BT_HCIUART_AG6XX 189 int ag6xx_init(void); 190 int ag6xx_deinit(void); 191 #endif 192