1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* |
3 | * see notice in l1oip.c |
4 | */ |
5 | |
6 | /* debugging */ |
7 | #define DEBUG_L1OIP_INIT 0x00010000 |
8 | #define DEBUG_L1OIP_SOCKET 0x00020000 |
9 | #define DEBUG_L1OIP_MGR 0x00040000 |
10 | #define DEBUG_L1OIP_MSG 0x00080000 |
11 | |
12 | /* enable to disorder received bchannels by sequence 2143658798... */ |
13 | /* |
14 | #define REORDER_DEBUG |
15 | */ |
16 | |
17 | /* frames */ |
18 | #define L1OIP_MAX_LEN 2048 /* max packet size form l2 */ |
19 | #define L1OIP_MAX_PERFRAME 1400 /* max data size in one frame */ |
20 | |
21 | |
22 | /* timers */ |
23 | #define L1OIP_KEEPALIVE 15 |
24 | #define L1OIP_TIMEOUT 65 |
25 | |
26 | |
27 | /* socket */ |
28 | #define L1OIP_DEFAULTPORT 931 |
29 | |
30 | |
31 | /* channel structure */ |
32 | struct l1oip_chan { |
33 | struct dchannel *dch; |
34 | struct bchannel *bch; |
35 | u32 tx_counter; /* counts xmit bytes/packets */ |
36 | u32 rx_counter; /* counts recv bytes/packets */ |
37 | u32 codecstate; /* used by codec to save data */ |
38 | #ifdef REORDER_DEBUG |
39 | int disorder_flag; |
40 | struct sk_buff *disorder_skb; |
41 | u32 disorder_cnt; |
42 | #endif |
43 | }; |
44 | |
45 | |
46 | /* card structure */ |
47 | struct l1oip { |
48 | struct list_head list; |
49 | |
50 | /* card */ |
51 | int registered; /* if registered with mISDN */ |
52 | char name[MISDN_MAX_IDLEN]; |
53 | int idx; /* card index */ |
54 | int pri; /* 1=pri, 0=bri */ |
55 | int d_idx; /* current dchannel number */ |
56 | int b_num; /* number of bchannels */ |
57 | u32 id; /* id of connection */ |
58 | int ondemand; /* if transmis. is on demand */ |
59 | int bundle; /* bundle channels in one frm */ |
60 | int codec; /* codec to use for transmis. */ |
61 | int limit; /* limit number of bchannels */ |
62 | bool shutdown; /* if card is released */ |
63 | |
64 | /* timer */ |
65 | struct timer_list keep_tl; |
66 | struct timer_list timeout_tl; |
67 | int timeout_on; |
68 | struct work_struct workq; |
69 | |
70 | /* socket */ |
71 | struct socket *socket; /* if set, socket is created */ |
72 | struct completion socket_complete;/* completion of sock thread */ |
73 | struct task_struct *socket_thread; |
74 | spinlock_t socket_lock; /* access sock outside thread */ |
75 | u32 remoteip; /* if all set, ip is assigned */ |
76 | u16 localport; /* must always be set */ |
77 | u16 remoteport; /* must always be set */ |
78 | struct sockaddr_in sin_local; /* local socket name */ |
79 | struct sockaddr_in sin_remote; /* remote socket name */ |
80 | struct msghdr sendmsg; /* ip message to send */ |
81 | struct kvec sendiov; /* iov for message */ |
82 | |
83 | /* frame */ |
84 | struct l1oip_chan chan[128]; /* channel instances */ |
85 | }; |
86 | |
87 | extern int l1oip_law_to_4bit(u8 *data, int len, u8 *result, u32 *state); |
88 | extern int l1oip_4bit_to_law(u8 *data, int len, u8 *result); |
89 | extern int l1oip_alaw_to_ulaw(u8 *data, int len, u8 *result); |
90 | extern int l1oip_ulaw_to_alaw(u8 *data, int len, u8 *result); |
91 | extern void l1oip_4bit_free(void); |
92 | extern int l1oip_4bit_alloc(int ulaw); |
93 | |