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