1/* $Id: capiutil.h,v 1.5.6.2 2001/09/23 22:24:33 kai Exp $
2 *
3 * CAPI 2.0 defines & types
4 *
5 * From CAPI 2.0 Development Kit AVM 1995 (msg.c)
6 * Rewritten for Linux 1996 by Carsten Paeth <calle@calle.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 */
12
13#ifndef __CAPIUTIL_H__
14#define __CAPIUTIL_H__
15
16#include <asm/types.h>
17
18#define CAPIMSG_BASELEN 8
19#define CAPIMSG_U8(m, off) (m[off])
20#define CAPIMSG_U16(m, off) (m[off]|(m[(off)+1]<<8))
21#define CAPIMSG_U32(m, off) (m[off]|(m[(off)+1]<<8)|(m[(off)+2]<<16)|(m[(off)+3]<<24))
22#define CAPIMSG_LEN(m) CAPIMSG_U16(m,0)
23#define CAPIMSG_APPID(m) CAPIMSG_U16(m,2)
24#define CAPIMSG_COMMAND(m) CAPIMSG_U8(m,4)
25#define CAPIMSG_SUBCOMMAND(m) CAPIMSG_U8(m,5)
26#define CAPIMSG_CMD(m) (((m[4])<<8)|(m[5]))
27#define CAPIMSG_MSGID(m) CAPIMSG_U16(m,6)
28#define CAPIMSG_CONTROLLER(m) (m[8] & 0x7f)
29#define CAPIMSG_CONTROL(m) CAPIMSG_U32(m, 8)
30#define CAPIMSG_NCCI(m) CAPIMSG_CONTROL(m)
31#define CAPIMSG_DATALEN(m) CAPIMSG_U16(m,16) /* DATA_B3_REQ */
32
33static inline void capimsg_setu8(void *m, int off, __u8 val)
34{
35 ((__u8 *)m)[off] = val;
36}
37
38static inline void capimsg_setu16(void *m, int off, __u16 val)
39{
40 ((__u8 *)m)[off] = val & 0xff;
41 ((__u8 *)m)[off+1] = (val >> 8) & 0xff;
42}
43
44static inline void capimsg_setu32(void *m, int off, __u32 val)
45{
46 ((__u8 *)m)[off] = val & 0xff;
47 ((__u8 *)m)[off+1] = (val >> 8) & 0xff;
48 ((__u8 *)m)[off+2] = (val >> 16) & 0xff;
49 ((__u8 *)m)[off+3] = (val >> 24) & 0xff;
50}
51
52#define CAPIMSG_SETLEN(m, len) capimsg_setu16(m, 0, len)
53#define CAPIMSG_SETAPPID(m, applid) capimsg_setu16(m, 2, applid)
54#define CAPIMSG_SETCOMMAND(m,cmd) capimsg_setu8(m, 4, cmd)
55#define CAPIMSG_SETSUBCOMMAND(m, cmd) capimsg_setu8(m, 5, cmd)
56#define CAPIMSG_SETMSGID(m, msgid) capimsg_setu16(m, 6, msgid)
57#define CAPIMSG_SETCONTROL(m, contr) capimsg_setu32(m, 8, contr)
58#define CAPIMSG_SETDATALEN(m, len) capimsg_setu16(m, 16, len)
59
60#endif /* __CAPIUTIL_H__ */
61

source code of linux/include/linux/isdn/capiutil.h