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 | |