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1.1 root 1: /*
2: * Trantor T128/T128F/T228 defines
3: * Note : architecturally, the T100 and T128 are different and won't work
4: *
5: * Copyright 1993, Drew Eckhardt
6: * Visionary Computing
7: * (Unix and Linux consulting and custom programming)
8: * [email protected]
9: * +1 (303) 440-4894
10: *
11: * DISTRIBUTION RELEASE 3.
12: *
13: * For more information, please consult
14: *
15: * Trantor Systems, Ltd.
16: * T128/T128F/T228 SCSI Host Adapter
17: * Hardware Specifications
18: *
19: * Trantor Systems, Ltd.
20: * 5415 Randall Place
21: * Fremont, CA 94538
22: * 1+ (415) 770-1400, FAX 1+ (415) 770-9910
23: *
24: * and
25: *
26: * NCR 5380 Family
27: * SCSI Protocol Controller
28: * Databook
29: *
30: * NCR Microelectronics
31: * 1635 Aeroplaza Drive
32: * Colorado Springs, CO 80916
33: * 1+ (719) 578-3400
34: * 1+ (800) 334-5454
35: */
36:
37: /*
38: * $Log: t128.h,v $
39: * Revision 1.1 1999/04/26 05:55:09 tb
40: * 1998-11-30 OKUJI Yoshinori <[email protected]>
41: *
42: * Clean up linux emulation code to make it architecture-independent
43: * as much as possible.
44: *
45: * * linux: Renamed from linuxdev.
46: * * Makefile.in (objfiles): Add linux.o instead of linuxdev.o.
47: * (MAKE): New variable. Used for the linux.o target.
48: * * configure.in: Add AC_CHECK_TOOL(MAKE, make).
49: * * i386/i386/spl.h: Include <i386/ipl.h>, for compatibility with
50: * OSF Mach 3.0. Suggested by Elgin Lee <[email protected]>.
51: * * linux/src: Renamed from linux/linux.
52: * * linux/dev: Renamed from linux/mach.
53: * * linux/Drivers.in (AC_INIT): Use dev/include/linux/autoconf.h,
54: * instead of mach/include/linux/autoconf.h.
55: * * Makefile.in (all): Target ../linux.o instead of ../linuxdev.o.
56: * * linux/dev/drivers/block/genhd.c: Include <machine/spl.h> instead
57: * of <i386/ipl.h>.
58: * * linux/dev/drivers/net/auto_irq.c: Remove unneeded header files,
59: * <i386/ipl.h> and <i386/pic.h>.
60: * * linux/dev/init/main.c: Many i386-dependent codes moved to ...
61: * * linux/dev/arch/i386/irq.c: ... here.
62: * * linux/dev/arch/i386/setup.c: New file.
63: * * linux/dev/arch/i386/linux_emul.h: Likewise.
64: * * linux/dev/arch/i386/glue/timer.c: Merged into sched.c.
65: * * linux/dev/arch/i386/glue/sched.c: Include <machine/spl.h> instead
66: * of <i386/ipl.h>, and moved to ...
67: * * linux/dev/kernel/sched.c: ... here.
68: * * linux/dev/arch/i386/glue/block.c: Include <machine/spl.h> and
69: * <linux_emul.h>, instead of i386-dependent header files, and
70: * moved to ...
71: * * linux/dev/glue/blocl.c: ... here.
72: * * linux/dev/arch/i386/glue/net.c: Include <machine/spl.h> and
73: * <linux_emul.h>, instead of i386-dependent header files, and
74: * moved to ...
75: * * linux/dev/glue/net.c: ... here.
76: * * linux/dev/arch/i386/glue/misc.c: Remove `x86' and moved to ...
77: * * linux/dev/glue/misc.c: ... here.
78: * * linux/dev/arch/i386/glue/kmem.c: Moved to ...
79: * * linux/dev/glue/kmem.c: ... here.
80: *
81: */
82:
83: #ifndef T128_H
84: #define T128_H
85:
86: #define T128_PUBLIC_RELEASE 3
87:
88: #define TDEBUG_INIT 0x1
89: #define TDEBUG_TRANSFER 0x2
90:
91: /*
92: * The trantor boards are memory mapped. They use an NCR5380 or
93: * equivalent (my sample board had part second sourced from ZILOG).
94: * NCR's recommended "Pseudo-DMA" architecture is used, where
95: * a PAL drives the DMA signals on the 5380 allowing fast, blind
96: * transfers with proper handshaking.
97: */
98:
99: /*
100: * Note : a boot switch is provided for the purpose of informing the
101: * firmware to boot or not boot from attached SCSI devices. So, I imagine
102: * there are fewer people who've yanked the ROM like they do on the Seagate
103: * to make bootup faster, and I'll probably use this for autodetection.
104: */
105: #define T_ROM_OFFSET 0
106:
107: /*
108: * Note : my sample board *WAS NOT* populated with the SRAM, so this
109: * can't be used for autodetection without a ROM present.
110: */
111: #define T_RAM_OFFSET 0x1800
112:
113: /*
114: * All of the registers are allocated 32 bytes of address space, except
115: * for the data register (read/write to/from the 5380 in pseudo-DMA mode)
116: */
117: #define T_CONTROL_REG_OFFSET 0x1c00 /* rw */
118: #define T_CR_INT 0x10 /* Enable interrupts */
119: #define T_CR_CT 0x02 /* Reset watchdog timer */
120:
121: #define T_STATUS_REG_OFFSET 0x1c20 /* ro */
122: #define T_ST_BOOT 0x80 /* Boot switch */
123: #define T_ST_S3 0x40 /* User settable switches, */
124: #define T_ST_S2 0x20 /* read 0 when switch is on, 1 off */
125: #define T_ST_S1 0x10
126: #define T_ST_PS2 0x08 /* Set for Microchannel 228 */
127: #define T_ST_RDY 0x04 /* 5380 DRQ */
128: #define T_ST_TIM 0x02 /* indicates 40us watchdog timer fired */
129: #define T_ST_ZERO 0x01 /* Always zero */
130:
131: #define T_5380_OFFSET 0x1d00 /* 8 registers here, see NCR5380.h */
132:
133: #define T_DATA_REG_OFFSET 0x1e00 /* rw 512 bytes long */
134:
135: #ifndef ASM
136: int t128_abort(Scsi_Cmnd *);
137: int t128_biosparam(Disk *, kdev_t, int*);
138: int t128_detect(Scsi_Host_Template *);
139: int t128_queue_command(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
140: int t128_reset(Scsi_Cmnd *, unsigned int reset_flags);
141: int t128_proc_info (char *buffer, char **start, off_t offset,
142: int length, int hostno, int inout);
143:
144: #ifndef NULL
145: #define NULL 0
146: #endif
147:
148: #ifndef CMD_PER_LUN
149: #define CMD_PER_LUN 2
150: #endif
151:
152: #ifndef CAN_QUEUE
153: #define CAN_QUEUE 32
154: #endif
155:
156: /*
157: * I hadn't thought of this with the earlier drivers - but to prevent
158: * macro definition conflicts, we shouldn't define all of the internal
159: * macros when this is being used solely for the host stub.
160: */
161:
162: #if defined(HOSTS_C) || defined(MODULE)
163:
164: #define TRANTOR_T128 {NULL, NULL, NULL, NULL, \
165: "Trantor T128/T128F/T228", t128_detect, NULL, \
166: NULL, \
167: NULL, t128_queue_command, t128_abort, t128_reset, NULL, \
168: t128_biosparam, \
169: /* can queue */ CAN_QUEUE, /* id */ 7, SG_ALL, \
170: /* cmd per lun */ CMD_PER_LUN , 0, 0, DISABLE_CLUSTERING}
171:
172: #endif
173:
174: #ifndef HOSTS_C
175:
176: #define NCR5380_implementation_fields \
177: volatile unsigned char *base
178:
179: #define NCR5380_local_declare() \
180: volatile unsigned char *base
181:
182: #define NCR5380_setup(instance) \
183: base = (volatile unsigned char *) (instance)->base
184:
185: #define T128_address(reg) (base + T_5380_OFFSET + ((reg) * 0x20))
186:
187: #if !(TDEBUG & TDEBUG_TRANSFER)
188: #define NCR5380_read(reg) (*(T128_address(reg)))
189: #define NCR5380_write(reg, value) (*(T128_address(reg)) = (value))
190: #else
191: #define NCR5380_read(reg) \
192: (((unsigned char) printk("scsi%d : read register %d at address %08x\n"\
193: , instance->hostno, (reg), T128_address(reg))), *(T128_address(reg)))
194:
195: #define NCR5380_write(reg, value) { \
196: printk("scsi%d : write %02x to register %d at address %08x\n", \
197: instance->hostno, (value), (reg), T128_address(reg)); \
198: *(T128_address(reg)) = (value); \
199: }
200: #endif
201:
202: #define NCR5380_intr t128_intr
203: #define NCR5380_queue_command t128_queue_command
204: #define NCR5380_abort t128_abort
205: #define NCR5380_reset t128_reset
206: #define NCR5380_proc_info t128_proc_info
207:
208: /* 15 14 12 10 7 5 3
209: 1101 0100 1010 1000 */
210:
211: #define T128_IRQS 0xc4a8
212:
213: #endif /* else def HOSTS_C */
214: #endif /* ndef ASM */
215: #endif /* T128_H */
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