1/* r3964 linediscipline for linux 2 * 3 * ----------------------------------------------------------- 4 * Copyright by 5 * Philips Automation Projects 6 * Kassel (Germany) 7 * http://www.pap-philips.de 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 __LINUX_N_R3964_H__ 49#define __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: */ 79enum {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,...): */ 89struct 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 100