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Annotation of 43BSDReno/sys/tahoe/cp.h, revision 1.1

1.1     ! root        1: /*
        !             2:  *     @(#)cp.h        7.1 (Berkeley) 5/21/88
        !             3:  */
        !             4: 
        !             5: /*
        !             6:  * Tahoe console processor interface
        !             7:  */
        !             8: 
        !             9: /*
        !            10:  * Reduced DCB layout for byte communication.
        !            11:  */
        !            12: #define        CPBUFLEN 200            /* Output buffer length */
        !            13: #ifndef        LOCORE
        !            14: struct cphdr {
        !            15:        char    cp_unit;        /* Done bit & unit # */
        !            16:        char    cp_comm;        /* Command */
        !            17:        short   cp_count;       /* Counter (when relevant) */
        !            18: };
        !            19: 
        !            20: struct cpdcb_o {               /* Output structure */
        !            21:        struct  cphdr   cp_hdr;
        !            22:        char    cp_buf[CPBUFLEN]; /* Buffer for output or 'stty' */
        !            23: };
        !            24: 
        !            25: struct cpdcb_i {               /* Structure for input */
        !            26:        struct  cphdr   cp_hdr;
        !            27:        char    cpi_buf[4];     /* Buffer for input */
        !            28: };
        !            29: #endif
        !            30: 
        !            31: #define        CPDONE  0x80            /* 'Done' bit in cp_unit */
        !            32: #define        CPTAKE  0x40            /* CP 'ack' to this cpdcb */
        !            33: 
        !            34: /* unit values */
        !            35: #define        CPUNIT  0               /* the CP itself */
        !            36: #define        CPCONS  1               /* console line */
        !            37: #define        CPREMOT 2               /* remote line */
        !            38: #define        CPCLOCK 4               /* realtime clock */
        !            39: 
        !            40: /* commands */
        !            41: #define        CPRESET 0
        !            42: #define        CPWRITE 1               /* write device or register */
        !            43: #define        CPREAD  2               /* read device or register */
        !            44: #define        CPSTTY  3               /* set terminal configuration */
        !            45: #define        CPBOOT  4               /* reboot system */
        !            46: 
        !            47: /*
        !            48:  *     CP specific locations
        !            49:  */
        !            50: #define        CPBFLG  0xc0000500      /* System bootflag flags */
        !            51: #define        CPYFLG  0xc0000504      /* Copy of the Y flag */
        !            52: #define        CPOPTS  0xc0000508      /* copy of CP options */
        !            53: #define CPRSRV 0xc000050c      /* reserved for CP usage */
        !            54: #define        CPBDEV  0xc0000510      /* Bootstrap device, saved on boot */
        !            55: #define        CPEDEV  0xc000052f      /* End of device name */
        !            56: 
        !            57: #if !defined(LOCORE) && defined(KERNEL)
        !            58: struct cphdr *cnlast;          /* last command sent to cp */
        !            59: #endif

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