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Annotation of Examples/DriverKit/Adaptec1542B/Adaptec1542B_reloc.tproj/AHAControllerPrivate.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1993 NeXT Computer, Inc.
        !             3:  *
        !             4:  * AHAControllerPrivate.h - Adaptec 1542 SCSI controller private typedefs.
        !             5:  *
        !             6:  * HISTORY
        !             7:  *
        !             8:  * 13 Apr 1993 Doug Mitchell at NeXT
        !             9:  *     Created.
        !            10:  */
        !            11: 
        !            12: #import <machkit/NXLock.h>
        !            13: #import <mach/mach_types.h>
        !            14: #import <mach/message.h>
        !            15: #import <driverkit/interruptMsg.h>
        !            16: #import "AHAController.h"
        !            17: #import "AHATypes.h"
        !            18: #import <driverkit/debugging.h>
        !            19: 
        !            20: /*
        !            21:  * Command to be executed by I/O thread.
        !            22:  */
        !            23: typedef enum { 
        !            24:        AO_Execute,             // execute IOSCSIRequest
        !            25:        AO_Reset,               // reset bus
        !            26:        AO_Abort                // abort I/O thread
        !            27: } AHAOp;
        !            28: 
        !            29: /*
        !            30:  * Command struct passed from exported methods (executeRequest and 
        !            31:  * resetSCSIBus) to the I/O thread. This struct is passed via commandQ.
        !            32:  */
        !            33: typedef struct {
        !            34:        AHAOp           op;             // AO_Execute, etc.
        !            35:        
        !            36:        /*
        !            37:         * The following 3 fields are only valid if op == AH_Execute.
        !            38:         */
        !            39:        IOSCSIRequest   *scsiReq;
        !            40:        void            *buffer;        
        !            41:        vm_task_t       client;
        !            42:        
        !            43:        sc_status_t     result;         // status upon completion
        !            44:        NXConditionLock *cmdLock;       // client waits on this
        !            45:        queue_chain_t   link;           // for enqueueing on commandQ
        !            46: } AHACommandBuf;
        !            47: 
        !            48: /*
        !            49:  * Condition variable states for AHACommandBuf.cmdLock.
        !            50:  */
        !            51: #define CMD_PENDING    0
        !            52: #define CMD_COMPLETE   1
        !            53: 
        !            54: /*
        !            55:  * DDM masks and macros.
        !            56:  */
        !            57: /*
        !            58:  * The index into IODDMMasks[].
        !            59:  */
        !            60: #define AHA_DDM_INDEX  2
        !            61: 
        !            62: #define DDM_EXPORTED   0x00000001      // exported methods
        !            63: #define DDM_IOTHREAD   0x00000002      // I/O thread methods
        !            64: #define DDM_INIT       0x00000004      // Initialization
        !            65: 
        !            66: #define ddm_exp(x, a, b, c, d, e)                                      \
        !            67:        IODEBUG(AHA_DDM_INDEX, DDM_EXPORTED, x, a, b, c, d, e)
        !            68:        
        !            69: #define ddm_thr(x, a, b, c, d, e)                                      \
        !            70:        IODEBUG(AHA_DDM_INDEX, DDM_IOTHREAD, x, a, b, c, d, e)
        !            71: 
        !            72: #define ddm_init(x, a, b, c, d, e)                                     \
        !            73:        IODEBUG(AHA_DDM_INDEX, DDM_INIT, x, a, b, c, d, e)
        !            74: 
        !            75: 
        !            76: /*
        !            77:  * Public low-level routines in AHARoutines.m.
        !            78:  */
        !            79: extern void aha_reset_board(unsigned short base, 
        !            80:        unsigned char   aha_board_id);
        !            81: boolean_t aha_setup_mb_area(unsigned short base,
        !            82:        struct aha_mb_area *aha_mb_area,
        !            83:        struct ccb      *aha_ccb);
        !            84: extern void aha_start_scsi(unsigned short base);
        !            85: extern void aha_unlock_mb(unsigned short base);
        !            86: extern boolean_t aha_cmd(unsigned short        base,
        !            87:        unsigned char   cmd,
        !            88:        unsigned char   *args,
        !            89:        int             arglen,
        !            90:        unsigned char   *reply,
        !            91:        int             replylen,
        !            92:        boolean_t       polled
        !            93: );
        !            94: extern boolean_t aha_probe_cmd(
        !            95:        unsigned short  base,
        !            96:        unsigned char   cmd,
        !            97:        unsigned char   *args,
        !            98:        int             arglen,
        !            99:        unsigned char   *reply,
        !           100:        int             replylen,
        !           101:        boolean_t       polled
        !           102: );
        !           103: 

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