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 12 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 #define HCI_UART_NOKIA 10 51 #define HCI_UART_MRVL 11 52 53 #define HCI_UART_RAW_DEVICE 0 54 #define HCI_UART_RESET_ON_INIT 1 55 #define HCI_UART_CREATE_AMP 2 56 #define HCI_UART_INIT_PENDING 3 57 #define HCI_UART_EXT_CONFIG 4 58 #define HCI_UART_VND_DETECT 5 59 60 struct hci_uart; 61 struct serdev_device; 62 63 struct hci_uart_proto { 64 unsigned int id; 65 const char *name; 66 unsigned int manufacturer; 67 unsigned int init_speed; 68 unsigned int oper_speed; 69 int (*open)(struct hci_uart *hu); 70 int (*close)(struct hci_uart *hu); 71 int (*flush)(struct hci_uart *hu); 72 int (*setup)(struct hci_uart *hu); 73 int (*set_baudrate)(struct hci_uart *hu, unsigned int speed); 74 int (*recv)(struct hci_uart *hu, const void *data, int len); 75 int (*enqueue)(struct hci_uart *hu, struct sk_buff *skb); 76 struct sk_buff *(*dequeue)(struct hci_uart *hu); 77 }; 78 79 struct hci_uart { 80 struct tty_struct *tty; 81 struct serdev_device *serdev; 82 struct hci_dev *hdev; 83 unsigned long flags; 84 unsigned long hdev_flags; 85 86 struct work_struct init_ready; 87 struct work_struct write_work; 88 89 const struct hci_uart_proto *proto; 90 void *priv; 91 92 struct sk_buff *tx_skb; 93 unsigned long tx_state; 94 95 unsigned int init_speed; 96 unsigned int oper_speed; 97 98 u8 alignment; 99 u8 padding; 100 }; 101 102 /* HCI_UART proto flag bits */ 103 #define HCI_UART_PROTO_SET 0 104 #define HCI_UART_REGISTERED 1 105 #define HCI_UART_PROTO_READY 2 106 107 /* TX states */ 108 #define HCI_UART_SENDING 1 109 #define HCI_UART_TX_WAKEUP 2 110 111 int hci_uart_register_proto(const struct hci_uart_proto *p); 112 int hci_uart_unregister_proto(const struct hci_uart_proto *p); 113 int hci_uart_register_device(struct hci_uart *hu, const struct hci_uart_proto *p); 114 115 int hci_uart_tx_wakeup(struct hci_uart *hu); 116 int hci_uart_init_ready(struct hci_uart *hu); 117 void hci_uart_set_baudrate(struct hci_uart *hu, unsigned int speed); 118 void hci_uart_set_flow_control(struct hci_uart *hu, bool enable); 119 void hci_uart_set_speeds(struct hci_uart *hu, unsigned int init_speed, 120 unsigned int oper_speed); 121 122 #ifdef CONFIG_BT_HCIUART_H4 123 int h4_init(void); 124 int h4_deinit(void); 125 126 struct h4_recv_pkt { 127 u8 type; /* Packet type */ 128 u8 hlen; /* Header length */ 129 u8 loff; /* Data length offset in header */ 130 u8 lsize; /* Data length field size */ 131 u16 maxlen; /* Max overall packet length */ 132 int (*recv)(struct hci_dev *hdev, struct sk_buff *skb); 133 }; 134 135 #define H4_RECV_ACL \ 136 .type = HCI_ACLDATA_PKT, \ 137 .hlen = HCI_ACL_HDR_SIZE, \ 138 .loff = 2, \ 139 .lsize = 2, \ 140 .maxlen = HCI_MAX_FRAME_SIZE \ 141 142 #define H4_RECV_SCO \ 143 .type = HCI_SCODATA_PKT, \ 144 .hlen = HCI_SCO_HDR_SIZE, \ 145 .loff = 2, \ 146 .lsize = 1, \ 147 .maxlen = HCI_MAX_SCO_SIZE 148 149 #define H4_RECV_EVENT \ 150 .type = HCI_EVENT_PKT, \ 151 .hlen = HCI_EVENT_HDR_SIZE, \ 152 .loff = 1, \ 153 .lsize = 1, \ 154 .maxlen = HCI_MAX_EVENT_SIZE 155 156 struct sk_buff *h4_recv_buf(struct hci_dev *hdev, struct sk_buff *skb, 157 const unsigned char *buffer, int count, 158 const struct h4_recv_pkt *pkts, int pkts_count); 159 #endif 160 161 #ifdef CONFIG_BT_HCIUART_BCSP 162 int bcsp_init(void); 163 int bcsp_deinit(void); 164 #endif 165 166 #ifdef CONFIG_BT_HCIUART_LL 167 int ll_init(void); 168 int ll_deinit(void); 169 #endif 170 171 #ifdef CONFIG_BT_HCIUART_ATH3K 172 int ath_init(void); 173 int ath_deinit(void); 174 #endif 175 176 #ifdef CONFIG_BT_HCIUART_3WIRE 177 int h5_init(void); 178 int h5_deinit(void); 179 #endif 180 181 #ifdef CONFIG_BT_HCIUART_INTEL 182 int intel_init(void); 183 int intel_deinit(void); 184 #endif 185 186 #ifdef CONFIG_BT_HCIUART_BCM 187 int bcm_init(void); 188 int bcm_deinit(void); 189 #endif 190 191 #ifdef CONFIG_BT_HCIUART_QCA 192 int qca_init(void); 193 int qca_deinit(void); 194 #endif 195 196 #ifdef CONFIG_BT_HCIUART_AG6XX 197 int ag6xx_init(void); 198 int ag6xx_deinit(void); 199 #endif 200 201 #ifdef CONFIG_BT_HCIUART_MRVL 202 int mrvl_init(void); 203 int mrvl_deinit(void); 204 #endif 205