[mirror_ubuntu-bionic-kernel.git] / drivers / isdn / mISDN / l1oip.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * see notice in l1oip.c
 */

/* debugging */
#define DEBUG_L1OIP_INIT	0x00010000
#define DEBUG_L1OIP_SOCKET	0x00020000
#define DEBUG_L1OIP_MGR		0x00040000
#define DEBUG_L1OIP_MSG		0x00080000

/* enable to disorder received bchannels by sequence 2143658798... */
/*
  #define REORDER_DEBUG
*/

/* frames */
#define L1OIP_MAX_LEN		2048		/* max packet size form l2 */
#define L1OIP_MAX_PERFRAME	1400		/* max data size in one frame */


/* timers */
#define L1OIP_KEEPALIVE		15
#define L1OIP_TIMEOUT		65


/* socket */
#define L1OIP_DEFAULTPORT	931


/* channel structure */
struct l1oip_chan {
	struct dchannel		*dch;
	struct bchannel		*bch;
	u32			tx_counter;	/* counts xmit bytes/packets */
	u32			rx_counter;	/* counts recv bytes/packets */
	u32			codecstate;	/* used by codec to save data */
#ifdef REORDER_DEBUG
	int			disorder_flag;
	struct sk_buff		*disorder_skb;
	u32			disorder_cnt;
#endif
};


/* card structure */
struct l1oip {
	struct list_head        list;

	/* card */
	int			registered;	/* if registered with mISDN */
	char			name[MISDN_MAX_IDLEN];
	int			idx;		/* card index */
	int			pri;		/* 1=pri, 0=bri */
	int			d_idx;		/* current dchannel number */
	int			b_num;		/* number of bchannels */
	u32			id;		/* id of connection */
	int			ondemand;	/* if transmis. is on demand */
	int			bundle;		/* bundle channels in one frm */
	int			codec;		/* codec to use for transmis. */
	int			limit;		/* limit number of bchannels */

	/* timer */
	struct timer_list	keep_tl;
	struct timer_list	timeout_tl;
	int			timeout_on;
	struct work_struct	workq;

	/* socket */
	struct socket		*socket;	/* if set, socket is created */
	struct completion	socket_complete;/* completion of sock thread */
	struct task_struct	*socket_thread;
	spinlock_t		socket_lock;	/* access sock outside thread */
	u32			remoteip;	/* if all set, ip is assigned */
	u16			localport;	/* must always be set */
	u16			remoteport;	/* must always be set */
	struct sockaddr_in	sin_local;	/* local socket name */
	struct sockaddr_in	sin_remote;	/* remote socket name */
	struct msghdr		sendmsg;	/* ip message to send */
	struct kvec		sendiov;	/* iov for message */

	/* frame */
	struct l1oip_chan	chan[128];	/* channel instances */
};

extern int l1oip_law_to_4bit(u8 *data, int len, u8 *result, u32 *state);
extern int l1oip_4bit_to_law(u8 *data, int len, u8 *result);
extern int l1oip_alaw_to_ulaw(u8 *data, int len, u8 *result);
extern int l1oip_ulaw_to_alaw(u8 *data, int len, u8 *result);
extern void l1oip_4bit_free(void);
extern int l1oip_4bit_alloc(int ulaw);
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
3712b42d KK	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	/*
475be4d8	14	#define REORDER_DEBUG
3712b42d KK	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 {
475be4d8 JP	33	struct dchannel *dch;
475be4d8 JP	34	struct bchannel *bch;
3712b42d KK	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
	63	/* timer */
475be4d8 JP	64	struct timer_list keep_tl;
475be4d8 JP	65	struct timer_list timeout_tl;
3712b42d KK	66	int timeout_on;
	67	struct work_struct workq;
	68
	69	/* socket */
475be4d8 JP	70	struct socket socket; / if set, socket is created */
475be4d8 JP	71	struct completion socket_complete;/* completion of sock thread */
3712b42d	72	struct task_struct *socket_thread;
475be4d8	73	spinlock_t socket_lock; /* access sock outside thread */
3712b42d	74	u32 remoteip; /* if all set, ip is assigned */
475be4d8 JP	75	u16 localport; /* must always be set */
475be4d8 JP	76	u16 remoteport; /* must always be set */
3712b42d KK	77	struct sockaddr_in sin_local; /* local socket name */
	78	struct sockaddr_in sin_remote; /* remote socket name */
	79	struct msghdr sendmsg; /* ip message to send */
8c90e11e	80	struct kvec sendiov; /* iov for message */
3712b42d KK	81
	82	/* frame */
	83	struct l1oip_chan chan[128]; /* channel instances */
	84	};
	85
	86	extern int l1oip_law_to_4bit(u8 data, int len, u8 result, u32 *state);
	87	extern int l1oip_4bit_to_law(u8 data, int len, u8 result);
	88	extern int l1oip_alaw_to_ulaw(u8 data, int len, u8 result);
	89	extern int l1oip_ulaw_to_alaw(u8 data, int len, u8 result);
	90	extern void l1oip_4bit_free(void);
	91	extern int l1oip_4bit_alloc(int ulaw);