Subversion Repositories or1k

/*

 * DTC controller, taken from T128 driver by...

 * Copyright 1993, Drew Eckhardt

 *      Visionary Computing

 *      (Unix and Linux consulting and custom programming)

 *      drew@colorado.edu

 *      +1 (303) 440-4894

 *

 * DISTRIBUTION RELEASE 2.

 *

 * For more information, please consult

 *

 *

 *

 * and

 *

 * NCR 5380 Family

 * SCSI Protocol Controller

 * Databook

 *

 * NCR Microelectronics

 * 1635 Aeroplaza Drive

 * Colorado Springs, CO 80916

 * 1+ (719) 578-3400

 * 1+ (800) 334-5454

 */

#ifndef DTC3280_H

#define DTC3280_H

#ifndef ASM

int dtc_abort(Scsi_Cmnd *);

int dtc_biosparam(Disk *, kdev_t, int*);

int dtc_detect(Scsi_Host_Template *);

int dtc_queue_command(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));

int dtc_reset(Scsi_Cmnd *, unsigned int reset_flags);

int dtc_proc_info (char *buffer, char **start, off_t offset,

                   int length, int hostno, int inout);

#ifndef NULL

#define NULL 0

#endif

#ifndef CMD_PER_LUN

#define CMD_PER_LUN 2

#endif

#ifndef CAN_QUEUE

#define CAN_QUEUE 32 

#endif

/*

 * I hadn't thought of this with the earlier drivers - but to prevent

 * macro definition conflicts, we shouldn't define all of the internal

 * macros when this is being used solely for the host stub.

 */

#define DTC3x80 {                               \

        name:           "DTC 3180/3280 ",       \

        detect:         dtc_detect,             \

        queuecommand:   dtc_queue_command,      \

        abort:          dtc_abort,              \

        reset:          dtc_reset,              \

        bios_param:     dtc_biosparam,          \

        can_queue:      CAN_QUEUE,              \

        this_id:        7,                      \

        sg_tablesize:   SG_ALL,                 \

        cmd_per_lun:    CMD_PER_LUN ,           \

        use_clustering: DISABLE_CLUSTERING}

#define NCR5380_implementation_fields \

    volatile unsigned int base

#define NCR5380_local_declare() \

    volatile unsigned int base

#define NCR5380_setup(instance) \

    base = (unsigned int)(instance)->base

#define DTC_address(reg) (base + DTC_5380_OFFSET + reg)

#define dbNCR5380_read(reg)                                              \

    (rval=isa_readb(DTC_address(reg)), \

     (((unsigned char) printk("DTC : read register %d at addr %08x is: %02x\n"\

    , (reg), (int)DTC_address(reg), rval)), rval ) )

#define dbNCR5380_write(reg, value) do {                                  \

    printk("DTC : write %02x to register %d at address %08x\n",         \

            (value), (reg), (int)DTC_address(reg));     \

    isa_writeb(value, DTC_address(reg));} while(0)

#if !(DTCDEBUG & DTCDEBUG_TRANSFER) 

#define NCR5380_read(reg) (isa_readb(DTC_address(reg)))

#define NCR5380_write(reg, value) (isa_writeb(value, DTC_address(reg)))

#else

#define NCR5380_read(reg) (isa_readb(DTC_address(reg)))

#define xNCR5380_read(reg)                                              \

    (((unsigned char) printk("DTC : read register %d at address %08x\n"\

    , (reg), DTC_address(reg))), isa_readb(DTC_address(reg)))

#define NCR5380_write(reg, value) do {                                  \

    printk("DTC : write %02x to register %d at address %08x\n",         \

            (value), (reg), (int)DTC_address(reg));     \

    isa_writeb(value, DTC_address(reg));} while(0)

#endif

#define NCR5380_intr dtc_intr

#define do_NCR5380_intr do_dtc_intr

#define NCR5380_queue_command dtc_queue_command

#define NCR5380_abort dtc_abort

#define NCR5380_reset dtc_reset

#define NCR5380_proc_info dtc_proc_info 

/* 15 12 11 10

   1001 1100 0000 0000 */

#define DTC_IRQS 0x9c00

#endif /* ndef ASM */

#endif /* DTC3280_H */