1 /* 2 * DTC controller, taken from T128 driver by... 3 * Copyright 1993, Drew Eckhardt 4 * Visionary Computing 5 * (Unix and Linux consulting and custom programming) 6 * drew@colorado.edu 7 * +1 (303) 440-4894 8 * 9 * DISTRIBUTION RELEASE 2. 10 * 11 * For more information, please consult 12 * 13 * 14 * 15 * and 16 * 17 * NCR 5380 Family 18 * SCSI Protocol Controller 19 * Databook 20 * 21 * NCR Microelectronics 22 * 1635 Aeroplaza Drive 23 * Colorado Springs, CO 80916 24 * 1+ (719) 578-3400 25 * 1+ (800) 334-5454 26 */ 27 28 #ifndef DTC3280_H 29 #define DTC3280_H 30 31 #define DTCDEBUG 0 32 #define DTCDEBUG_INIT 0x1 33 #define DTCDEBUG_TRANSFER 0x2 34 35 static int dtc_abort(Scsi_Cmnd *); 36 static int dtc_biosparam(struct scsi_device *, struct block_device *, 37 sector_t, int*); 38 static int dtc_detect(struct scsi_host_template *); 39 static int dtc_queue_command(struct Scsi_Host *, struct scsi_cmnd *); 40 static int dtc_bus_reset(Scsi_Cmnd *); 41 42 #ifndef CMD_PER_LUN 43 #define CMD_PER_LUN 2 44 #endif 45 46 #ifndef CAN_QUEUE 47 #define CAN_QUEUE 32 48 #endif 49 50 #define NCR5380_implementation_fields \ 51 void __iomem *base 52 53 #define NCR5380_local_declare() \ 54 void __iomem *base 55 56 #define NCR5380_setup(instance) \ 57 base = ((struct NCR5380_hostdata *)(instance)->hostdata)->base 58 59 #define DTC_address(reg) (base + DTC_5380_OFFSET + reg) 60 61 #define dbNCR5380_read(reg) \ 62 (rval=readb(DTC_address(reg)), \ 63 (((unsigned char) printk("DTC : read register %d at addr %p is: %02x\n"\ 64 , (reg), DTC_address(reg), rval)), rval ) ) 65 66 #define dbNCR5380_write(reg, value) do { \ 67 printk("DTC : write %02x to register %d at address %p\n", \ 68 (value), (reg), DTC_address(reg)); \ 69 writeb(value, DTC_address(reg));} while(0) 70 71 72 #if !(DTCDEBUG & DTCDEBUG_TRANSFER) 73 #define NCR5380_read(reg) (readb(DTC_address(reg))) 74 #define NCR5380_write(reg, value) (writeb(value, DTC_address(reg))) 75 #else 76 #define NCR5380_read(reg) (readb(DTC_address(reg))) 77 #define xNCR5380_read(reg) \ 78 (((unsigned char) printk("DTC : read register %d at address %p\n"\ 79 , (reg), DTC_address(reg))), readb(DTC_address(reg))) 80 81 #define NCR5380_write(reg, value) do { \ 82 printk("DTC : write %02x to register %d at address %p\n", \ 83 (value), (reg), DTC_address(reg)); \ 84 writeb(value, DTC_address(reg));} while(0) 85 #endif 86 87 #define NCR5380_intr dtc_intr 88 #define NCR5380_queue_command dtc_queue_command 89 #define NCR5380_abort dtc_abort 90 #define NCR5380_bus_reset dtc_bus_reset 91 #define NCR5380_proc_info dtc_proc_info 92 93 /* 15 12 11 10 94 1001 1100 0000 0000 */ 95 96 #define DTC_IRQS 0x9c00 97 98 99 #endif /* DTC3280_H */ 100