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1 | /* r3964 linediscipline for linux |
2 | * | |
3 | * ----------------------------------------------------------- | |
4 | * Copyright by | |
5 | * Philips Automation Projects | |
6 | * Kassel (Germany) | |
7 | * ----------------------------------------------------------- | |
8 | * This software may be used and distributed according to the terms of | |
9 | * the GNU General Public License, incorporated herein by reference. | |
10 | * | |
11 | * Author: | |
12 | * L. Haag | |
13 | * | |
14 | * $Log: r3964.h,v $ | |
15 | * Revision 1.4 2005/12/21 19:54:24 Kurt Huwig <kurt huwig de> | |
16 | * Fixed HZ usage on 2.6 kernels | |
17 | * Removed unnecessary include | |
18 | * | |
19 | * Revision 1.3 2001/03/18 13:02:24 dwmw2 | |
20 | * Fix timer usage, use spinlocks properly. | |
21 | * | |
22 | * Revision 1.2 2001/03/18 12:53:15 dwmw2 | |
23 | * Merge changes in 2.4.2 | |
24 | * | |
25 | * Revision 1.1.1.1 1998/10/13 16:43:14 dwmw2 | |
26 | * This'll screw the version control | |
27 | * | |
28 | * Revision 1.6 1998/09/30 00:40:38 dwmw2 | |
29 | * Updated to use kernel's N_R3964 if available | |
30 | * | |
31 | * Revision 1.4 1998/04/02 20:29:44 lhaag | |
32 | * select, blocking, ... | |
33 | * | |
34 | * Revision 1.3 1998/02/12 18:58:43 root | |
35 | * fixed some memory leaks | |
36 | * calculation of checksum characters | |
37 | * | |
38 | * Revision 1.2 1998/02/07 13:03:17 root | |
39 | * ioctl read_telegram | |
40 | * | |
41 | * Revision 1.1 1998/02/06 19:19:43 root | |
42 | * Initial revision | |
43 | * | |
44 | * | |
45 | */ | |
46 | ||
47 | #ifndef _UAPI__LINUX_N_R3964_H__ | |
48 | #define _UAPI__LINUX_N_R3964_H__ | |
49 | ||
50 | /* line disciplines for r3964 protocol */ | |
51 | ||
52 | ||
53 | /* | |
54 | * Ioctl-commands | |
55 | */ | |
56 | ||
57 | #define R3964_ENABLE_SIGNALS 0x5301 | |
58 | #define R3964_SETPRIORITY 0x5302 | |
59 | #define R3964_USE_BCC 0x5303 | |
60 | #define R3964_READ_TELEGRAM 0x5304 | |
61 | ||
62 | /* Options for R3964_SETPRIORITY */ | |
63 | #define R3964_MASTER 0 | |
64 | #define R3964_SLAVE 1 | |
65 | ||
66 | /* Options for R3964_ENABLE_SIGNALS */ | |
67 | #define R3964_SIG_ACK 0x0001 | |
68 | #define R3964_SIG_DATA 0x0002 | |
69 | #define R3964_SIG_ALL 0x000f | |
70 | #define R3964_SIG_NONE 0x0000 | |
71 | #define R3964_USE_SIGIO 0x1000 | |
72 | ||
73 | /* | |
74 | * r3964 operation states: | |
75 | */ | |
76 | ||
77 | /* types for msg_id: */ | |
78 | enum {R3964_MSG_ACK=1, R3964_MSG_DATA }; | |
79 | ||
80 | #define R3964_MAX_MSG_COUNT 32 | |
81 | ||
82 | /* error codes for client messages */ | |
83 | #define R3964_OK 0 /* no error. */ | |
84 | #define R3964_TX_FAIL -1 /* transmission error, block NOT sent */ | |
85 | #define R3964_OVERFLOW -2 /* msg queue overflow */ | |
86 | ||
87 | /* the client gets this struct when calling read(fd,...): */ | |
88 | struct r3964_client_message { | |
89 | int msg_id; | |
90 | int arg; | |
91 | int error_code; | |
92 | }; | |
93 | ||
94 | #define R3964_MTU 256 | |
95 | ||
96 | ||
97 | ||
98 | #endif /* _UAPI__LINUX_N_R3964_H__ */ |