1/*
2 * Kernel CAPI 2.0 Module
3 *
4 * Copyright 1999 by Carsten Paeth <calle@calle.de>
5 * Copyright 2002 by Kai Germaschewski <kai@germaschewski.name>
6 *
7 * This software may be used and distributed according to the terms
8 * of the GNU General Public License, incorporated herein by reference.
9 *
10 */
11
12
13#include <linux/kernel.h>
14#include <linux/spinlock.h>
15#include <linux/list.h>
16#include <linux/isdn/capilli.h>
17
18#ifdef KCAPI_DEBUG
19#define DBG(format, arg...) do {					\
20		printk(KERN_DEBUG "%s: " format "\n" , __func__ , ## arg); \
21	} while (0)
22#else
23#define DBG(format, arg...) /* */
24#endif
25
26enum {
27	CAPI_CTR_DETACHED = 0,
28	CAPI_CTR_DETECTED = 1,
29	CAPI_CTR_LOADING  = 2,
30	CAPI_CTR_RUNNING  = 3,
31};
32
33extern struct capi_ctr *capi_controller[CAPI_MAXCONTR];
34extern struct mutex capi_controller_lock;
35
36extern struct capi20_appl *capi_applications[CAPI_MAXAPPL];
37
38void kcapi_proc_init(void);
39void kcapi_proc_exit(void);
40
41struct capi20_appl {
42	u16 applid;
43	capi_register_params rparam;
44	void (*recv_message)(struct capi20_appl *ap, struct sk_buff *skb);
45	void *private;
46
47	/* internal to kernelcapi.o */
48	unsigned long nrecvctlpkt;
49	unsigned long nrecvdatapkt;
50	unsigned long nsentctlpkt;
51	unsigned long nsentdatapkt;
52	struct mutex recv_mtx;
53	struct sk_buff_head recv_queue;
54	struct work_struct recv_work;
55	int release_in_progress;
56};
57
58u16 capi20_isinstalled(void);
59u16 capi20_register(struct capi20_appl *ap);
60u16 capi20_release(struct capi20_appl *ap);
61u16 capi20_put_message(struct capi20_appl *ap, struct sk_buff *skb);
62u16 capi20_get_manufacturer(u32 contr, u8 buf[CAPI_MANUFACTURER_LEN]);
63u16 capi20_get_version(u32 contr, struct capi_version *verp);
64u16 capi20_get_serial(u32 contr, u8 serial[CAPI_SERIAL_LEN]);
65u16 capi20_get_profile(u32 contr, struct capi_profile *profp);
66int capi20_manufacturer(unsigned long cmd, void __user *data);
67
68#define CAPICTR_UP			0
69#define CAPICTR_DOWN			1
70
71int kcapi_init(void);
72void kcapi_exit(void);
73
74/*----- basic-type definitions -----*/
75
76typedef __u8 *_cstruct;
77
78typedef enum {
79	CAPI_COMPOSE,
80	CAPI_DEFAULT
81} _cmstruct;
82
83/*
84   The _cmsg structure contains all possible CAPI 2.0 parameter.
85   All parameters are stored here first. The function CAPI_CMSG_2_MESSAGE
86   assembles the parameter and builds CAPI2.0 conform messages.
87   CAPI_MESSAGE_2_CMSG disassembles CAPI 2.0 messages and stores the
88   parameter in the _cmsg structure
89 */
90
91typedef struct {
92	/* Header */
93	__u16 ApplId;
94	__u8 Command;
95	__u8 Subcommand;
96	__u16 Messagenumber;
97
98	/* Parameter */
99	union {
100		__u32 adrController;
101		__u32 adrPLCI;
102		__u32 adrNCCI;
103	} adr;
104
105	_cmstruct AdditionalInfo;
106	_cstruct B1configuration;
107	__u16 B1protocol;
108	_cstruct B2configuration;
109	__u16 B2protocol;
110	_cstruct B3configuration;
111	__u16 B3protocol;
112	_cstruct BC;
113	_cstruct BChannelinformation;
114	_cmstruct BProtocol;
115	_cstruct CalledPartyNumber;
116	_cstruct CalledPartySubaddress;
117	_cstruct CallingPartyNumber;
118	_cstruct CallingPartySubaddress;
119	__u32 CIPmask;
120	__u32 CIPmask2;
121	__u16 CIPValue;
122	__u32 Class;
123	_cstruct ConnectedNumber;
124	_cstruct ConnectedSubaddress;
125	__u32 Data;
126	__u16 DataHandle;
127	__u16 DataLength;
128	_cstruct FacilityConfirmationParameter;
129	_cstruct Facilitydataarray;
130	_cstruct FacilityIndicationParameter;
131	_cstruct FacilityRequestParameter;
132	__u16 FacilitySelector;
133	__u16 Flags;
134	__u32 Function;
135	_cstruct HLC;
136	__u16 Info;
137	_cstruct InfoElement;
138	__u32 InfoMask;
139	__u16 InfoNumber;
140	_cstruct Keypadfacility;
141	_cstruct LLC;
142	_cstruct ManuData;
143	__u32 ManuID;
144	_cstruct NCPI;
145	__u16 Reason;
146	__u16 Reason_B3;
147	__u16 Reject;
148	_cstruct Useruserdata;
149
150	/* intern */
151	unsigned l, p;
152	unsigned char *par;
153	__u8 *m;
154
155	/* buffer to construct message */
156	__u8 buf[180];
157
158} _cmsg;
159
160/*-----------------------------------------------------------------------*/
161
162/*
163 * Debugging / Tracing functions
164 */
165
166char *capi_cmd2str(__u8 cmd, __u8 subcmd);
167
168typedef struct {
169	u_char	*buf;
170	u_char	*p;
171	size_t	size;
172	size_t	pos;
173} _cdebbuf;
174
175#define	CDEBUG_SIZE	1024
176#define	CDEBUG_GSIZE	4096
177
178void cdebbuf_free(_cdebbuf *cdb);
179int cdebug_init(void);
180void cdebug_exit(void);
181
182_cdebbuf *capi_message2str(__u8 *msg);
183