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Annotation of coherent/b/STREAMS/conf/bin/src/mdev.h, revision 1.1

1.1     ! root        1: #ifndef        MDEV_H
        !             2: #define        MDEV_H
        !             3: 
        !             4: #include "devadm.h"
        !             5: 
        !             6: 
        !             7: enum {
        !             8:        MD_DISABLED,
        !             9:        MD_INSTALLABLE,
        !            10:        MD_ENABLED
        !            11: };
        !            12: 
        !            13: 
        !            14: /*
        !            15:  * Structure of the data gathered by the mdev routines.
        !            16:  */
        !            17: 
        !            18: typedef        unsigned int    maj_t;
        !            19: typedef        unsigned int    min_t;
        !            20: 
        !            21: struct mdevice {
        !            22:        mdev_t        * md_next;        /* global list of all entries */
        !            23:        mdev_t        * md_chrlink;     /* for sorts */
        !            24:        mdev_t        * md_blklink;     /* for sorts */
        !            25:        mdev_t        * md_modlink;     /* for sorts */
        !            26:        mdev_t        * md_cohlink;     /* for sorts */
        !            27: 
        !            28:        sdev_t        * md_sdevices;    /* thread of "sdevice" entries */
        !            29:        int             md_configure;   /* See MD_... constants */
        !            30:        int             md_interrupt;   /* has an enabled interrupt */
        !            31: 
        !            32:        symbol_t      * md_devname;     /* internal module/device name */
        !            33:        symbol_t      * md_functions;   /* present driver entry points */
        !            34:        symbol_t      * md_flags;       /* driver characteristics */
        !            35:        symbol_t      * md_prefix;      /* driver prefix */
        !            36:        maj_t           md_blk_maj [2]; /* block major number low, high */
        !            37:        maj_t           md_chr_maj [2]; /* character major number low, high */
        !            38:        min_t           md_minor_min;   /* minor number minimum */
        !            39:        min_t           md_minor_max;   /* minor number maximum */
        !            40: 
        !            41:        /*
        !            42:         * The following fields are not used in the Coherent system as yet
        !            43:         * but are defined by mdevice (4) so we read them.
        !            44:         */
        !            45: 
        !            46:        int             md_dma_chan;    /* DMA channel number */
        !            47:        int             md_cpu_id;      /* processor-id */
        !            48: };
        !            49: 
        !            50: 
        !            51: /*
        !            52:  * Types suitable for use as selection and comparison predicates for the
        !            53:  * mdev_sort () function.
        !            54:  */
        !            55: 
        !            56: typedef        int  (* msel_t)         PROTO ((mdev_t * _mdevp));
        !            57: typedef int  (*        mcmp_t)         PROTO ((mdev_t * _left, mdev_t * _right));
        !            58: typedef        void (* miter_t)        PROTO ((VOID * _extra, mdev_t * _mdevp));
        !            59: 
        !            60: 
        !            61: /*
        !            62:  * For Coherent, the first 32 major numbers are reserved for the use of the
        !            63:  * old-style Coherent device-driver system.
        !            64:  */
        !            65: 
        !            66: enum {
        !            67:        MAJOR_RESERVED          = 32,
        !            68:        MAX_DEVNAME             = 8,
        !            69:        MAX_PREFIX              = 4
        !            70: };
        !            71: 
        !            72: enum {
        !            73:        MDEV_OPEN               = 'o',
        !            74:        MDEV_CLOSE              = 'c',
        !            75:        MDEV_READ               = 'r',
        !            76:        MDEV_WRITE              = 'w',
        !            77:        MDEV_IOCTL              = 'i',
        !            78:        MDEV_STARTUP            = 's',
        !            79:        MDEV_EXIT               = 'x',
        !            80:        MDEV_INIT               = 'I',
        !            81:        MDEV_HALT               = 'h',
        !            82:        MDEV_CHPOLL             = 'p',
        !            83: 
        !            84:        MDEV_MMAP               = 'M',  /* not defined in SVR4 mdevice (4) */
        !            85:        MDEV_SIZE               = 'z'   /* not defined in SVR4 mdevice (4) */
        !            86: };
        !            87: 
        !            88: #define        MDEV_FUNCS              "ocrwisxIhpMz"
        !            89: 
        !            90: enum {
        !            91:        MDEV_INSTALLABLE        = 'i',
        !            92:        MDEV_CHAR               = 'c',
        !            93:        MDEV_BLOCK              = 'b',
        !            94:        MDEV_STREAM             = 'S',
        !            95:        MDEV_DDI_DDK            = 'f',
        !            96:        MDEV_TTY                = 't',
        !            97:        MDEV_ONE_SDEVICE        = 'o',
        !            98:        MDEV_REQUIRED           = 'r',
        !            99:        MDEV_SAME_MAJORS        = 'u',
        !           100:        MDEV_HARDWARE           = 'H',
        !           101:        MDEV_NO_INT             = 'G',
        !           102:        MDEV_SHARE_DMA          = 'D',
        !           103:        MDEV_MULTIPLE_MAJORS    = 'M',
        !           104:        MDEV_ALLOW_IOA_OVERLAP  = 'O',
        !           105: 
        !           106: /*
        !           107:  * The following flag specifies that we are dealing with an old-style Coherent
        !           108:  * device driver. These drivers ignore any interrupt settings, doing their
        !           109:  * work though the mtune/stune system instead, so the 'G' flag also applies.
        !           110:  * The 'o' flag is also appropriate.
        !           111:  */
        !           112: 
        !           113:        MDEV_COHERENT           = 'C'
        !           114: };
        !           115: 
        !           116: #define        MDEV_FLAGS              "icbSftoruHGDMOC"
        !           117: 
        !           118: 
        !           119: EXTERN_C_BEGIN
        !           120: 
        !           121: mdev_t       * find_mdev       PROTO ((symbol_t * _sym));
        !           122: void           for_all_mdevices PROTO ((miter_t _iter, VOID * _extra));
        !           123: int            mdev_func       PROTO ((mdev_t * _mdevp, char _func));
        !           124: int            mdev_flag       PROTO ((mdev_t * _mdevp, char _flag));
        !           125: void           read_mdev_file  PROTO ((CONST char * _inname,
        !           126:                                        CONST char * _outname,
        !           127:                                        VOID * _extra));
        !           128: void           read_mdev_string PROTO ((CONST char * _string,
        !           129:                                         VOID * _extra));
        !           130: int            mdev_sort       PROTO ((mdev_t ** _mlistp, mdev_t ** _mdendp,
        !           131:                                        msel_t _selpred, mcmp_t _cmppred,
        !           132:                                        size_t _ptroff));
        !           133: void           write_mdevice   PROTO ((mdev_t * _mdevp, input_t * _input));
        !           134: 
        !           135: EXTERN_C_END
        !           136: 
        !           137: #endif /* ! defined (MDEV_H) */

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