1 /* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */ 2 /* r3964 linediscipline for linux 3 * 4 * ----------------------------------------------------------- 5 * Copyright by 6 * Philips Automation Projects 7 * Kassel (Germany) 8 * ----------------------------------------------------------- 9 * This software may be used and distributed according to the terms of 10 * the GNU General Public License, incorporated herein by reference. 11 * 12 * Author: 13 * L. Haag 14 * 15 * $Log: r3964.h,v $ 16 * Revision 1.4 2005/12/21 19:54:24 Kurt Huwig <kurt huwig de> 17 * Fixed HZ usage on 2.6 kernels 18 * Removed unnecessary include 19 * 20 * Revision 1.3 2001/03/18 13:02:24 dwmw2 21 * Fix timer usage, use spinlocks properly. 22 * 23 * Revision 1.2 2001/03/18 12:53:15 dwmw2 24 * Merge changes in 2.4.2 25 * 26 * Revision 1.1.1.1 1998/10/13 16:43:14 dwmw2 27 * This'll screw the version control 28 * 29 * Revision 1.6 1998/09/30 00:40:38 dwmw2 30 * Updated to use kernel's N_R3964 if available 31 * 32 * Revision 1.4 1998/04/02 20:29:44 lhaag 33 * select, blocking, ... 34 * 35 * Revision 1.3 1998/02/12 18:58:43 root 36 * fixed some memory leaks 37 * calculation of checksum characters 38 * 39 * Revision 1.2 1998/02/07 13:03:17 root 40 * ioctl read_telegram 41 * 42 * Revision 1.1 1998/02/06 19:19:43 root 43 * Initial revision 44 * 45 * 46 */ 47 48 #ifndef _UAPI__LINUX_N_R3964_H__ 49 #define _UAPI__LINUX_N_R3964_H__ 50 51 /* line disciplines for r3964 protocol */ 52 53 54 /* 55 * Ioctl-commands 56 */ 57 58 #define R3964_ENABLE_SIGNALS 0x5301 59 #define R3964_SETPRIORITY 0x5302 60 #define R3964_USE_BCC 0x5303 61 #define R3964_READ_TELEGRAM 0x5304 62 63 /* Options for R3964_SETPRIORITY */ 64 #define R3964_MASTER 0 65 #define R3964_SLAVE 1 66 67 /* Options for R3964_ENABLE_SIGNALS */ 68 #define R3964_SIG_ACK 0x0001 69 #define R3964_SIG_DATA 0x0002 70 #define R3964_SIG_ALL 0x000f 71 #define R3964_SIG_NONE 0x0000 72 #define R3964_USE_SIGIO 0x1000 73 74 /* 75 * r3964 operation states: 76 */ 77 78 /* types for msg_id: */ 79 enum {R3964_MSG_ACK=1, R3964_MSG_DATA }; 80 81 #define R3964_MAX_MSG_COUNT 32 82 83 /* error codes for client messages */ 84 #define R3964_OK 0 /* no error. */ 85 #define R3964_TX_FAIL -1 /* transmission error, block NOT sent */ 86 #define R3964_OVERFLOW -2 /* msg queue overflow */ 87 88 /* the client gets this struct when calling read(fd,...): */ 89 struct r3964_client_message { 90 int msg_id; 91 int arg; 92 int error_code; 93 }; 94 95 #define R3964_MTU 256 96 97 98 99 #endif /* _UAPI__LINUX_N_R3964_H__ */ 100
