Commit | Line | Data |
---|---|---|
1a59d1b8 | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
1da177e4 | 2 | /* |
0372a662 MH |
3 | * |
4 | * Bluetooth HCI UART driver | |
5 | * | |
6 | * Copyright (C) 2000-2001 Qualcomm Incorporated | |
7 | * Copyright (C) 2002-2003 Maxim Krasnyansky <maxk@qualcomm.com> | |
8 | * Copyright (C) 2004-2005 Marcel Holtmann <marcel@holtmann.org> | |
1da177e4 LT |
9 | */ |
10 | ||
0372a662 | 11 | #ifndef N_HCI |
1da177e4 LT |
12 | #define N_HCI 15 |
13 | #endif | |
14 | ||
15 | /* Ioctls */ | |
d2158744 MH |
16 | #define HCIUARTSETPROTO _IOW('U', 200, int) |
17 | #define HCIUARTGETPROTO _IOR('U', 201, int) | |
18 | #define HCIUARTGETDEVICE _IOR('U', 202, int) | |
63c7d09c JH |
19 | #define HCIUARTSETFLAGS _IOW('U', 203, int) |
20 | #define HCIUARTGETFLAGS _IOR('U', 204, int) | |
1da177e4 LT |
21 | |
22 | /* UART protocols */ | |
162f812f | 23 | #define HCI_UART_MAX_PROTO 12 |
1da177e4 LT |
24 | |
25 | #define HCI_UART_H4 0 | |
26 | #define HCI_UART_BCSP 1 | |
27 | #define HCI_UART_3WIRE 2 | |
28 | #define HCI_UART_H4DS 3 | |
166d2f6a | 29 | #define HCI_UART_LL 4 |
b3190df6 | 30 | #define HCI_UART_ATH3K 5 |
16e3887f | 31 | #define HCI_UART_INTEL 6 |
e9a2dd26 | 32 | #define HCI_UART_BCM 7 |
0ff252c1 | 33 | #define HCI_UART_QCA 8 |
395174bb | 34 | #define HCI_UART_AG6XX 9 |
9e69130c | 35 | #define HCI_UART_NOKIA 10 |
162f812f | 36 | #define HCI_UART_MRVL 11 |
1da177e4 | 37 | |
63c7d09c | 38 | #define HCI_UART_RAW_DEVICE 0 |
a55e1f38 | 39 | #define HCI_UART_RESET_ON_INIT 1 |
8a7a3fd6 | 40 | #define HCI_UART_CREATE_AMP 2 |
9f2aee84 | 41 | #define HCI_UART_INIT_PENDING 3 |
6afd04ad | 42 | #define HCI_UART_EXT_CONFIG 4 |
fb2ce8d1 | 43 | #define HCI_UART_VND_DETECT 5 |
63c7d09c | 44 | |
1da177e4 | 45 | struct hci_uart; |
82f5169b | 46 | struct serdev_device; |
1da177e4 LT |
47 | |
48 | struct hci_uart_proto { | |
49 | unsigned int id; | |
7c40fb8d | 50 | const char *name; |
aee61f7a | 51 | unsigned int manufacturer; |
7721383f FD |
52 | unsigned int init_speed; |
53 | unsigned int oper_speed; | |
1da177e4 LT |
54 | int (*open)(struct hci_uart *hu); |
55 | int (*close)(struct hci_uart *hu); | |
56 | int (*flush)(struct hci_uart *hu); | |
6ae4fddf | 57 | int (*setup)(struct hci_uart *hu); |
7721383f | 58 | int (*set_baudrate)(struct hci_uart *hu, unsigned int speed); |
9d1c40eb | 59 | int (*recv)(struct hci_uart *hu, const void *data, int len); |
1da177e4 LT |
60 | int (*enqueue)(struct hci_uart *hu, struct sk_buff *skb); |
61 | struct sk_buff *(*dequeue)(struct hci_uart *hu); | |
62 | }; | |
63 | ||
64 | struct hci_uart { | |
0372a662 | 65 | struct tty_struct *tty; |
82f5169b | 66 | struct serdev_device *serdev; |
0372a662 MH |
67 | struct hci_dev *hdev; |
68 | unsigned long flags; | |
63c7d09c | 69 | unsigned long hdev_flags; |
1da177e4 | 70 | |
9f2aee84 | 71 | struct work_struct init_ready; |
da64c27d | 72 | struct work_struct write_work; |
9f2aee84 | 73 | |
4ee7ef19 | 74 | const struct hci_uart_proto *proto; |
67d2f878 | 75 | struct percpu_rw_semaphore proto_lock; /* Stop work for proto close */ |
0372a662 MH |
76 | void *priv; |
77 | ||
78 | struct sk_buff *tx_skb; | |
79 | unsigned long tx_state; | |
2a973dfa IF |
80 | |
81 | unsigned int init_speed; | |
82 | unsigned int oper_speed; | |
aeac3014 SR |
83 | |
84 | u8 alignment; | |
85 | u8 padding; | |
1da177e4 LT |
86 | }; |
87 | ||
63c7d09c | 88 | /* HCI_UART proto flag bits */ |
b4a46996 HG |
89 | #define HCI_UART_PROTO_SET 0 |
90 | #define HCI_UART_REGISTERED 1 | |
91 | #define HCI_UART_PROTO_READY 2 | |
92 | #define HCI_UART_NO_SUSPEND_NOTIFIER 3 | |
1da177e4 LT |
93 | |
94 | /* TX states */ | |
0372a662 MH |
95 | #define HCI_UART_SENDING 1 |
96 | #define HCI_UART_TX_WAKEUP 2 | |
1da177e4 | 97 | |
4ee7ef19 MH |
98 | int hci_uart_register_proto(const struct hci_uart_proto *p); |
99 | int hci_uart_unregister_proto(const struct hci_uart_proto *p); | |
82f5169b | 100 | int hci_uart_register_device(struct hci_uart *hu, const struct hci_uart_proto *p); |
c34dc3bf | 101 | void hci_uart_unregister_device(struct hci_uart *hu); |
82f5169b | 102 | |
1da177e4 | 103 | int hci_uart_tx_wakeup(struct hci_uart *hu); |
40fbb915 | 104 | int hci_uart_wait_until_sent(struct hci_uart *hu); |
9f2aee84 | 105 | int hci_uart_init_ready(struct hci_uart *hu); |
fdee6d8f | 106 | void hci_uart_init_work(struct work_struct *work); |
7721383f | 107 | void hci_uart_set_baudrate(struct hci_uart *hu, unsigned int speed); |
b36a1552 | 108 | bool hci_uart_has_flow_control(struct hci_uart *hu); |
2a973dfa IF |
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); | |
1da177e4 | 112 | |
0372a662 MH |
113 | #ifdef CONFIG_BT_HCIUART_H4 |
114 | int h4_init(void); | |
115 | int h4_deinit(void); | |
e1a38d70 | 116 | |
79b8df93 MH |
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 | ||
ef564119 LAD |
147 | #define H4_RECV_ISO \ |
148 | .type = HCI_ISODATA_PKT, \ | |
149 | .hlen = HCI_ISO_HDR_SIZE, \ | |
150 | .loff = 2, \ | |
151 | .lsize = 2, \ | |
152 | .maxlen = HCI_MAX_FRAME_SIZE \ | |
153 | ||
e1a38d70 | 154 | struct sk_buff *h4_recv_buf(struct hci_dev *hdev, struct sk_buff *skb, |
79b8df93 MH |
155 | const unsigned char *buffer, int count, |
156 | const struct h4_recv_pkt *pkts, int pkts_count); | |
0372a662 MH |
157 | #endif |
158 | ||
159 | #ifdef CONFIG_BT_HCIUART_BCSP | |
160 | int bcsp_init(void); | |
161 | int bcsp_deinit(void); | |
162 | #endif | |
166d2f6a OBC |
163 | |
164 | #ifdef CONFIG_BT_HCIUART_LL | |
165 | int ll_init(void); | |
166 | int ll_deinit(void); | |
167 | #endif | |
b3190df6 SS |
168 | |
169 | #ifdef CONFIG_BT_HCIUART_ATH3K | |
170 | int ath_init(void); | |
171 | int ath_deinit(void); | |
172 | #endif | |
7dec65c8 JH |
173 | |
174 | #ifdef CONFIG_BT_HCIUART_3WIRE | |
175 | int h5_init(void); | |
176 | int h5_deinit(void); | |
177 | #endif | |
16e3887f | 178 | |
ca93cee5 LP |
179 | #ifdef CONFIG_BT_HCIUART_INTEL |
180 | int intel_init(void); | |
181 | int intel_deinit(void); | |
182 | #endif | |
183 | ||
bdd8818e MH |
184 | #ifdef CONFIG_BT_HCIUART_BCM |
185 | int bcm_init(void); | |
186 | int bcm_deinit(void); | |
187 | #endif | |
0ff252c1 BYTK |
188 | |
189 | #ifdef CONFIG_BT_HCIUART_QCA | |
190 | int qca_init(void); | |
191 | int qca_deinit(void); | |
192 | #endif | |
395174bb LP |
193 | |
194 | #ifdef CONFIG_BT_HCIUART_AG6XX | |
195 | int ag6xx_init(void); | |
196 | int ag6xx_deinit(void); | |
197 | #endif | |
162f812f LP |
198 | |
199 | #ifdef CONFIG_BT_HCIUART_MRVL | |
200 | int mrvl_init(void); | |
201 | int mrvl_deinit(void); | |
202 | #endif |