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
33 static inline void capimsg_setu8(void *m, int off, __u8 val)
34 {
35 ((__u8 *)m)[off] = val;
36 }
37
38 static 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
44 static 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
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