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Annotation of XNU/bsd/sys/chio.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
        !            23: /*
        !            24:  * The NEXTSTEP Software License Agreement specifies the terms
        !            25:  * and conditions for redistribution.
        !            26:  */
        !            27: 
        !            28: #ifndef _SYS_CHIO_H_
        !            29: #define _SYS_CHIO_H_
        !            30: 
        !            31: /*
        !            32:  * Structures and definitions for changer io control commands
        !            33:  */
        !            34: 
        !            35: #define CH_INVERT              0x10000
        !            36: #define CH_ADDR_MASK           0xffff
        !            37: struct chop {
        !            38:        short   ch_op;          /* operations defined below */
        !            39:        short   result;         /* the result */
        !            40:        union {
        !            41:                struct {
        !            42:                        int chm;                /* Transport element */
        !            43:                        int from;
        !            44:                        int to;
        !            45:                } move;
        !            46:                struct {
        !            47:                        int chm;                /* Transport element */
        !            48:                        int to;
        !            49:                } position; 
        !            50:                struct {
        !            51:                        short   chmo;           /* Offset of first CHM */
        !            52:                        short   chms;           /* No. of CHM */
        !            53:                        short   slots;          /* No. of Storage Elements */
        !            54:                        short   sloto;          /* Offset of first SE */
        !            55:                        short   imexs;          /* No. of Import/Export Slots */
        !            56:                        short   imexo;          /* Offset of first IM/EX */
        !            57:                        short   drives;         /* No. of CTS */
        !            58:                        short   driveo;         /* Offset of first CTS */
        !            59:                        short   rot;            /* CHM can rotate */
        !            60:                } getparam;
        !            61:                struct {
        !            62:                        int type;
        !            63: #define CH_CHM 1
        !            64: #define CH_STOR        2
        !            65: #define CH_IMEX        3
        !            66: #define CH_CTS 4
        !            67:                        int from;
        !            68:                        struct {
        !            69:                                u_char elema_1;
        !            70:                                u_char elema_0;
        !            71:                                u_char full:1;
        !            72:                                u_char rsvd:1;
        !            73:                                u_char except:1;
        !            74:                                u_char :5;
        !            75:                                u_char rsvd2;
        !            76:                                union {
        !            77:                                        struct {
        !            78:                                                u_char add_sense_code;
        !            79:                                                u_char add_sense_code_qualifier;
        !            80:                                        } specs;
        !            81:                                        short add_sense;
        !            82: /* WARINING LSB only */
        !            83: #define CH_CHOLDER     0x0290  /* Cartridge holder is missing */
        !            84: #define CH_STATUSQ     0x0390  /* Status is questionable */
        !            85: #define CH_CTS_CLOSED  0x0490  /* CTS door is closed */
        !            86:                                } ch_add_sense;
        !            87:                                u_char rsvd3[3];
        !            88:                                u_char :6;
        !            89:                                u_char invert:1;
        !            90:                                u_char svalid:1;
        !            91:                                u_char source_1;
        !            92:                                u_char source_0;
        !            93:                                u_char rsvd4[4];
        !            94:                        } elem_data;
        !            95:                } get_elem_stat;
        !            96:        } u;
        !            97: };
        !            98: 
        !            99: /* operations */
        !           100: #define CHMOVE                         1
        !           101: #define CHPOSITION                     2
        !           102: #define CHGETPARAM                     3
        !           103: #define CHGETELEM                      4
        !           104: 
        !           105: 
        !           106: /* Changer IO control command */
        !           107: #define        CHIOOP  _IOWR('c', 1, struct chop)      /* do a mag tape op */
        !           108: 
        !           109: #endif /* !_SYS_CHIO_H_ */

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