1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright (c) 2001 by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #ifndef _TTYMUXUSER_H 28 #define _TTYMUXUSER_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <sys/types.h> 33 #include <sys/param.h> 34 #include <sys/termios.h> 35 36 #ifdef __cplusplus 37 extern "C" { 38 #endif 39 40 #define TTYMUX_MOD_ID (0x540d) /* T^m */ 41 #define TTYMUX_DRVNAME "ttymux" 42 43 #define TTYMUX_MAX_LINKS (16) 44 /* 45 * Generic serial multiplexor ioctls. 46 */ 47 #define _TTYMUXIOC (TTYMUX_MOD_ID<<8) 48 #define TTYMUX_ASSOC (_TTYMUXIOC | 1) 49 #define TTYMUX_DISASSOC (_TTYMUXIOC | 2) 50 #define TTYMUX_LIST (_TTYMUXIOC | 3) 51 #define TTYMUX_GETLINK (_TTYMUXIOC | 4) 52 /* 53 * Ioctls for serial multiplexors acting as the system console. 54 */ 55 #define TTYMUX_SETABORT (_TTYMUXIOC | 100) 56 #define TTYMUX_GETABORT (_TTYMUXIOC | 101) 57 #define TTYMUX_CONSDEV (_TTYMUXIOC | 102) 58 #define TTYMUX_GETABORTSTR (_TTYMUXIOC | 103) 59 #define TTYMUX_GETCONSOLES (_TTYMUXIOC | 104) 60 /* 61 * Optional control ioctl. 62 */ 63 #define TTYMUX_SETCTL (_TTYMUXIOC | 200) 64 #define TTYMUX_GETCTL (_TTYMUXIOC | 201) 65 66 typedef enum {FORINPUT = 1, FOROUTPUT = 2, FORIO = 3} io_mode_t; 67 68 /* 69 * Create or destroy associations TTYMUX_ASSOC and TTYMUX_DISASSOC 70 */ 71 #define AMSTAG (0x414d5354) 72 typedef struct ttymux_association { 73 dev_t ttymux_udev; /* the upper device to be associated */ 74 /* the device type of a linked lower stream */ 75 dev_t ttymux_ldev; 76 /* the linkid of a linked lower stream */ 77 int ttymux_linkid; 78 ulong_t ttymux_tag; /* tagged association */ 79 io_mode_t ttymux_ioflag; /* FORINPUT FOROUTPUT FORIO */ 80 /* OBP device path of ldev */ 81 char ttymux_path[MAXPATHLEN]; 82 } ttymux_assoc_t; 83 84 /* 85 * List all links known to a mux driver TTYMUX_LIST 86 * If the user ioctl arg is NULL the return value is the 87 * number of links in the driver (to facilitate the user 88 * allocating enough space for the link information. 89 * Otherwise the ioctl arg should point to the following 90 * structure. nlinks indicates how many entries the user 91 * has allocated in the array. The return value indicates the 92 * number of entries that have been filled in. 93 * EINVAL if nlinks is < 1 94 * EAGAIN if no resources. 95 */ 96 typedef struct ttymux_associations { 97 ulong_t ttymux_nlinks; 98 ttymux_assoc_t *ttymux_assocs; 99 } ttymux_assocs_t; 100 101 /* 102 * Enable or disable aborting to the system monitor 103 * TTYMUX_SETABORT and TTYMUX_GETABORT 104 */ 105 enum ttymux_break_type {SOFTWARE_BREAK, HARDWARE_BREAK, SOFTHARD_BREAK}; 106 107 typedef struct ttymux_abort { 108 /* apply request to this device */ 109 dev_t ttymux_ldev; 110 enum ttymux_break_type ttymux_method; 111 uint_t ttymux_enable; 112 } ttymux_abort_t; 113 114 /* 115 * Ioctl acknowledgement policies. 116 */ 117 #define FIRSTACK 0 118 #define LASTACK 1 119 #define CONSENSUS 2 120 #define PERIOCTL 3 121 122 /* 123 * Set or get the ioctl acknowledgement policy and masking of control bits 124 * TTYMUX_SETCTL and TTYMUX_GETCTL 125 */ 126 127 struct ttymux_policy { 128 dev_t ttymux_udev; /* apply the request to this device */ 129 /* determines the method used to ack M_IOCTLS */ 130 int ttymux_policy; 131 tcflag_t ttymux_cmask; /* never set these control bits */ 132 }; 133 134 #ifdef __cplusplus 135 } 136 #endif 137 138 #endif /* _TTYMUXUSER_H */ 139