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