1/* $Id: capi.h,v 1.6.6.2 2001/09/23 22:24:32 kai Exp $
2 *
3 * ISDN lowlevel-module for the IBM ISDN-S0 Active 2000.
4 *
5 * Author       Fritz Elfert
6 * Copyright    by Fritz Elfert      <fritz@isdn4linux.de>
7 *
8 * This software may be used and distributed according to the terms
9 * of the GNU General Public License, incorporated herein by reference.
10 *
11 * Thanks to Friedemann Baitinger and IBM Germany
12 *
13 */
14
15#ifndef CAPI_H
16#define CAPI_H
17
18/* Command-part of a CAPI message */
19typedef struct actcapi_msgcmd {
20	__u8 cmd;
21	__u8 subcmd;
22} actcapi_msgcmd;
23
24/* CAPI message header */
25typedef struct actcapi_msghdr {
26	__u16 len;
27	__u16 applicationID;
28	actcapi_msgcmd cmd;
29	__u16 msgnum;
30} actcapi_msghdr;
31
32/* CAPI message description (for debugging) */
33typedef struct actcapi_msgdsc {
34	actcapi_msgcmd cmd;
35	char *description;
36} actcapi_msgdsc;
37
38/* CAPI Address */
39typedef struct actcapi_addr {
40	__u8 len;                            /* Length of element            */
41	__u8 tnp;                            /* Type/Numbering Plan          */
42	__u8 num[20];                        /* Caller ID                    */
43} actcapi_addr;
44
45/* CAPI INFO element mask */
46typedef  union actcapi_infonr {              /* info number                  */
47	__u16 mask;                          /* info-mask field              */
48	struct bmask {                       /* bit definitions              */
49		unsigned  codes:3;           /* code set                     */
50		unsigned  rsvd:5;            /* reserved                     */
51		unsigned  svind:1;           /* single, variable length ind. */
52		unsigned  wtype:7;           /* W-element type               */
53	} bmask;
54} actcapi_infonr;
55
56/* CAPI INFO element */
57typedef union  actcapi_infoel {              /* info element                 */
58	__u8 len;                            /* length of info element       */
59	__u8 display[40];                    /* display contents             */
60	__u8 uuinfo[40];                     /* User-user info field         */
61	struct cause {                       /* Cause information            */
62		unsigned ext2:1;             /* extension                    */
63		unsigned cod:2;              /* coding standard              */
64		unsigned spare:1;            /* spare                        */
65		unsigned loc:4;              /* location                     */
66		unsigned ext1:1;             /* extension                    */
67		unsigned cval:7;             /* Cause value                  */
68	} cause;
69	struct charge {                      /* Charging information         */
70		__u8 toc;                    /* type of charging info        */
71		__u8 unit[10];               /* charging units               */
72	} charge;
73	__u8 date[20];                       /* date fields                  */
74	__u8 stat;                           /* state of remote party        */
75} actcapi_infoel;
76
77/* Message for EAZ<->MSN Mapping */
78typedef struct actcapi_msn {
79	__u8 eaz;
80	__u8 len;                            /* Length of MSN                */
81	__u8 msn[15];
82}  __attribute__((packed)) actcapi_msn;
83
84typedef struct actcapi_dlpd {
85	__u8 len;                            /* Length of structure          */
86	__u16 dlen;                          /* Data Length                  */
87	__u8 laa;                            /* Link Address A               */
88	__u8 lab;                            /* Link Address B               */
89	__u8 modulo;                         /* Modulo Mode                  */
90	__u8 win;                            /* Window size                  */
91	__u8 xid[100];                       /* XID Information              */
92} __attribute__((packed)) actcapi_dlpd;
93
94typedef struct actcapi_ncpd {
95	__u8   len;                          /* Length of structure          */
96	__u16  lic;
97	__u16  hic;
98	__u16  ltc;
99	__u16  htc;
100	__u16  loc;
101	__u16  hoc;
102	__u8   modulo;
103} __attribute__((packed)) actcapi_ncpd;
104#define actcapi_ncpi actcapi_ncpd
105
106/*
107 * Layout of NCCI field in a B3 DATA CAPI message is different from
108 * standard at act2000:
109 *
110 * Bit 0-4  = PLCI
111 * Bit 5-7  = Controller
112 * Bit 8-15 = NCCI
113 */
114#define MAKE_NCCI(plci, contr, ncci)					\
115	((plci & 0x1f) | ((contr & 0x7) << 5) | ((ncci & 0xff) << 8))
116
117#define EVAL_NCCI(fakencci, plci, contr, ncci) {	\
118		plci  = fakencci & 0x1f;		\
119		contr = (fakencci >> 5) & 0x7;		\
120		ncci  = (fakencci >> 8) & 0xff;		\
121	}
122
123/*
124 * Layout of PLCI field in a B3 DATA CAPI message is different from
125 * standard at act2000:
126 *
127 * Bit 0-4  = PLCI
128 * Bit 5-7  = Controller
129 * Bit 8-15 = reserved (must be 0)
130 */
131#define MAKE_PLCI(plci, contr)			\
132	((plci & 0x1f) | ((contr & 0x7) << 5))
133
134#define EVAL_PLCI(fakeplci, plci, contr) {	\
135		plci  = fakeplci & 0x1f;	\
136		contr = (fakeplci >> 5) & 0x7;	\
137	}
138
139typedef struct actcapi_msg {
140	actcapi_msghdr hdr;
141	union {
142		__u16 manuf_msg;
143		struct manufacturer_req_net {
144			__u16 manuf_msg;
145			__u16 controller;
146			__u8  nettype;
147		} manufacturer_req_net;
148		struct manufacturer_req_v42 {
149			__u16 manuf_msg;
150			__u16 controller;
151			__u32 v42control;
152		} manufacturer_req_v42;
153		struct manufacturer_conf_v42 {
154			__u16 manuf_msg;
155			__u16 controller;
156		} manufacturer_conf_v42;
157		struct manufacturer_req_err {
158			__u16 manuf_msg;
159			__u16 controller;
160		} manufacturer_req_err;
161		struct manufacturer_ind_err {
162			__u16 manuf_msg;
163			__u16 controller;
164			__u32 errcode;
165			__u8  errstring; /* actually up to 160 */
166		} manufacturer_ind_err;
167		struct manufacturer_req_msn {
168			__u16 manuf_msg;
169			__u16 controller;
170			actcapi_msn msnmap;
171		} __attribute ((packed)) manufacturer_req_msn;
172		/* TODO: TraceInit-req/conf/ind/resp and
173		 *       TraceDump-req/conf/ind/resp
174		 */
175		struct connect_req {
176			__u8  controller;
177			__u8  bchan;
178			__u32 infomask;
179			__u8  si1;
180			__u8  si2;
181			__u8  eaz;
182			actcapi_addr addr;
183		} __attribute__ ((packed)) connect_req;
184		struct connect_conf {
185			__u16 plci;
186			__u16 info;
187		} connect_conf;
188		struct connect_ind {
189			__u16 plci;
190			__u8  controller;
191			__u8  si1;
192			__u8  si2;
193			__u8  eaz;
194			actcapi_addr addr;
195		} __attribute__ ((packed)) connect_ind;
196		struct connect_resp {
197			__u16 plci;
198			__u8  rejectcause;
199		} connect_resp;
200		struct connect_active_ind {
201			__u16 plci;
202			actcapi_addr addr;
203		} __attribute__ ((packed)) connect_active_ind;
204		struct connect_active_resp {
205			__u16 plci;
206		} connect_active_resp;
207		struct connect_b3_req {
208			__u16 plci;
209			actcapi_ncpi ncpi;
210		} __attribute__ ((packed)) connect_b3_req;
211		struct connect_b3_conf {
212			__u16 plci;
213			__u16 ncci;
214			__u16 info;
215		} connect_b3_conf;
216		struct connect_b3_ind {
217			__u16 ncci;
218			__u16 plci;
219			actcapi_ncpi ncpi;
220		} __attribute__ ((packed)) connect_b3_ind;
221		struct connect_b3_resp {
222			__u16 ncci;
223			__u8  rejectcause;
224			actcapi_ncpi ncpi;
225		} __attribute__ ((packed)) connect_b3_resp;
226		struct disconnect_req {
227			__u16 plci;
228			__u8  cause;
229		} disconnect_req;
230		struct disconnect_conf {
231			__u16 plci;
232			__u16 info;
233		} disconnect_conf;
234		struct disconnect_ind {
235			__u16 plci;
236			__u16 info;
237		} disconnect_ind;
238		struct disconnect_resp {
239			__u16 plci;
240		} disconnect_resp;
241		struct connect_b3_active_ind {
242			__u16 ncci;
243			actcapi_ncpi ncpi;
244		} __attribute__ ((packed)) connect_b3_active_ind;
245		struct connect_b3_active_resp {
246			__u16 ncci;
247		} connect_b3_active_resp;
248		struct disconnect_b3_req {
249			__u16 ncci;
250			actcapi_ncpi ncpi;
251		} __attribute__ ((packed)) disconnect_b3_req;
252		struct disconnect_b3_conf {
253			__u16 ncci;
254			__u16 info;
255		} disconnect_b3_conf;
256		struct disconnect_b3_ind {
257			__u16 ncci;
258			__u16 info;
259			actcapi_ncpi ncpi;
260		} __attribute__ ((packed)) disconnect_b3_ind;
261		struct disconnect_b3_resp {
262			__u16 ncci;
263		} disconnect_b3_resp;
264		struct info_ind {
265			__u16 plci;
266			actcapi_infonr nr;
267			actcapi_infoel el;
268		} __attribute__ ((packed)) info_ind;
269		struct info_resp {
270			__u16 plci;
271		} info_resp;
272		struct listen_b3_req {
273			__u16 plci;
274		} listen_b3_req;
275		struct listen_b3_conf {
276			__u16 plci;
277			__u16 info;
278		} listen_b3_conf;
279		struct select_b2_protocol_req {
280			__u16 plci;
281			__u8  protocol;
282			actcapi_dlpd dlpd;
283		} __attribute__ ((packed)) select_b2_protocol_req;
284		struct select_b2_protocol_conf {
285			__u16 plci;
286			__u16 info;
287		} select_b2_protocol_conf;
288		struct select_b3_protocol_req {
289			__u16 plci;
290			__u8  protocol;
291			actcapi_ncpd ncpd;
292		} __attribute__ ((packed)) select_b3_protocol_req;
293		struct select_b3_protocol_conf {
294			__u16 plci;
295			__u16 info;
296		} select_b3_protocol_conf;
297		struct listen_req {
298			__u8  controller;
299			__u32 infomask;
300			__u16 eazmask;
301			__u16 simask;
302		} __attribute__ ((packed)) listen_req;
303		struct listen_conf {
304			__u8  controller;
305			__u16 info;
306		} __attribute__ ((packed)) listen_conf;
307		struct data_b3_req {
308			__u16 fakencci;
309			__u16 datalen;
310			__u32 unused;
311			__u8  blocknr;
312			__u16 flags;
313		} __attribute ((packed)) data_b3_req;
314		struct data_b3_ind {
315			__u16 fakencci;
316			__u16 datalen;
317			__u32 unused;
318			__u8  blocknr;
319			__u16 flags;
320		} __attribute__ ((packed)) data_b3_ind;
321		struct data_b3_resp {
322			__u16 ncci;
323			__u8  blocknr;
324		} __attribute__ ((packed)) data_b3_resp;
325		struct data_b3_conf {
326			__u16 ncci;
327			__u8  blocknr;
328			__u16 info;
329		} __attribute__ ((packed)) data_b3_conf;
330	} msg;
331} __attribute__ ((packed)) actcapi_msg;
332
333static inline unsigned short
334actcapi_nextsmsg(act2000_card *card)
335{
336	unsigned long flags;
337	unsigned short n;
338
339	spin_lock_irqsave(&card->mnlock, flags);
340	n = card->msgnum;
341	card->msgnum++;
342	card->msgnum &= 0x7fff;
343	spin_unlock_irqrestore(&card->mnlock, flags);
344	return n;
345}
346#define DEBUG_MSG
347#undef DEBUG_DATA_MSG
348#undef DEBUG_DUMP_SKB
349
350extern int actcapi_chkhdr(act2000_card *, actcapi_msghdr *);
351extern int actcapi_listen_req(act2000_card *);
352extern int actcapi_manufacturer_req_net(act2000_card *);
353extern int actcapi_manufacturer_req_errh(act2000_card *);
354extern int actcapi_manufacturer_req_msn(act2000_card *);
355extern int actcapi_connect_req(act2000_card *, act2000_chan *, char *, char, int, int);
356extern void actcapi_select_b2_protocol_req(act2000_card *, act2000_chan *);
357extern void actcapi_disconnect_b3_req(act2000_card *, act2000_chan *);
358extern void actcapi_connect_resp(act2000_card *, act2000_chan *, __u8);
359extern void actcapi_dispatch(struct work_struct *);
360#ifdef DEBUG_MSG
361extern void actcapi_debug_msg(struct sk_buff *skb, int);
362#else
363#define actcapi_debug_msg(skb, len)
364#endif
365#endif
366