1. 根目录:
2. drivers
3. scsi
4. dtc.h

/*
 * 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
 */

#ifndef DTC3280_H
#define DTC3280_H

#define DTCDEBUG 0
#define DTCDEBUG_INIT	0x1
#define DTCDEBUG_TRANSFER 0x2

#ifndef CMD_PER_LUN
#define CMD_PER_LUN 2
#endif

#ifndef CAN_QUEUE
#define CAN_QUEUE 32 
#endif

#define NCR5380_implementation_fields \
    void __iomem *base

#define NCR5380_local_declare() \
    void __iomem *base

#define NCR5380_setup(instance) \
    base = ((struct NCR5380_hostdata *)(instance)->hostdata)->base

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

#define dbNCR5380_read(reg)                                              \
    (rval=readb(DTC_address(reg)), \
     (((unsigned char) printk("DTC : read register %d at addr %p is: %02x\n"\
    , (reg), DTC_address(reg), rval)), rval ) )

#define dbNCR5380_write(reg, value) do {                                  \
    printk("DTC : write %02x to register %d at address %p\n",         \
            (value), (reg), DTC_address(reg));     \
    writeb(value, DTC_address(reg));} while(0)


#if !(DTCDEBUG & DTCDEBUG_TRANSFER) 
#define NCR5380_read(reg) (readb(DTC_address(reg)))
#define NCR5380_write(reg, value) (writeb(value, DTC_address(reg)))
#else
#define NCR5380_read(reg) (readb(DTC_address(reg)))
#define xNCR5380_read(reg)						\
    (((unsigned char) printk("DTC : read register %d at address %p\n"\
    , (reg), DTC_address(reg))), readb(DTC_address(reg)))

#define NCR5380_write(reg, value) do {					\
    printk("DTC : write %02x to register %d at address %p\n", 	\
	    (value), (reg), DTC_address(reg));	\
    writeb(value, DTC_address(reg));} while(0)
#endif

#define NCR5380_intr			dtc_intr
#define NCR5380_queue_command		dtc_queue_command
#define NCR5380_abort			dtc_abort
#define NCR5380_bus_reset		dtc_bus_reset
#define NCR5380_info			dtc_info
#define NCR5380_show_info		dtc_show_info 
#define NCR5380_write_info		dtc_write_info 

/* 15 12 11 10
   1001 1100 0000 0000 */

#define DTC_IRQS 0x9c00


#endif /* DTC3280_H */