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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * This driver adapted from Drew Eckhardt's Trantor T128 driver
3 *
4 * Copyright 1993, Drew Eckhardt
5 * Visionary Computing
6 * (Unix and Linux consulting and custom programming)
7 * drew@colorado.edu
8 * +1 (303) 666-5836
9 *
10 * ( Based on T128 - DISTRIBUTION RELEASE 3. )
11 *
12 * Modified to work with the Pro Audio Spectrum/Studio 16
13 * by John Weidman.
14 *
15 *
16 * For more information, please consult
17 *
18 * Media Vision
19 * (510) 770-8600
20 * (800) 348-7116
Linus Torvalds1da177e2005-04-16 15:20:36 -070021 */
22
23
24#ifndef PAS16_H
25#define PAS16_H
26
Linus Torvalds1da177e2005-04-16 15:20:36 -070027#define PDEBUG_INIT 0x1
28#define PDEBUG_TRANSFER 0x2
29
30#define PAS16_DEFAULT_BASE_1 0x388
31#define PAS16_DEFAULT_BASE_2 0x384
32#define PAS16_DEFAULT_BASE_3 0x38c
33#define PAS16_DEFAULT_BASE_4 0x288
34
35#define PAS16_DEFAULT_BOARD_1_IRQ 10
36#define PAS16_DEFAULT_BOARD_2_IRQ 12
37#define PAS16_DEFAULT_BOARD_3_IRQ 14
38#define PAS16_DEFAULT_BOARD_4_IRQ 15
39
40
41/*
42 * The Pro Audio Spectrum boards are I/O mapped. They use a Zilog 5380
43 * SCSI controller, which is the equivalent of NCR's 5380. "Pseudo-DMA"
44 * architecture is used, where a PAL drives the DMA signals on the 5380
45 * allowing fast, blind transfers with proper handshaking.
46 */
47
48
49/* The Time-out Counter register is used to safe-guard against a stuck
50 * bus (in the case of RDY driven handshake) or a stuck byte (if 16-Bit
51 * DMA conversion is used). The counter uses a 28.224MHz clock
52 * divided by 14 as its clock source. In the case of a stuck byte in
53 * the holding register, an interrupt is generated (and mixed with the
54 * one with the drive) using the CD-ROM interrupt pointer.
55 */
56
57#define P_TIMEOUT_COUNTER_REG 0x4000
58#define P_TC_DISABLE 0x80 /* Set to 0 to enable timeout int. */
59 /* Bits D6-D0 contain timeout count */
60
61
62#define P_TIMEOUT_STATUS_REG_OFFSET 0x4001
63#define P_TS_TIM 0x80 /* check timeout status */
64 /* Bits D6-D4 N/U */
65#define P_TS_ARM_DRQ_INT 0x08 /* Arm DRQ Int. When set high,
66 * the next rising edge will
67 * cause a CD-ROM interrupt.
68 * When set low, the interrupt
69 * will be cleared. There is
70 * no status available for
71 * this interrupt.
72 */
73#define P_TS_ENABLE_TO_ERR_INTERRUPT /* Enable timeout error int. */
74#define P_TS_ENABLE_WAIT /* Enable Wait */
75
76#define P_TS_CT 0x01 /* clear timeout. Note: writing
77 * to this register clears the
78 * timeout error int. or status
79 */
80
81
82/*
83 * The data register reads/writes to/from the 5380 in pseudo-DMA mode
84 */
85
86#define P_DATA_REG_OFFSET 0x5c00 /* rw */
87
88#define P_STATUS_REG_OFFSET 0x5c01 /* ro */
89#define P_ST_RDY 0x80 /* 5380 DDRQ Status */
90
91#define P_IRQ_STATUS 0x5c03
92#define P_IS_IRQ 0x80 /* DIRQ status */
93
94#define PCB_CONFIG 0x803
95#define MASTER_ADDRESS_PTR 0x9a01 /* Fixed position - no relo */
96#define SYS_CONFIG_4 0x8003
97#define WAIT_STATE 0xbc00
98#define OPERATION_MODE_1 0xec03
99#define IO_CONFIG_3 0xf002
100
101
102#ifndef ASM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103
104#ifndef CMD_PER_LUN
105#define CMD_PER_LUN 2
106#endif
107
108#ifndef CAN_QUEUE
109#define CAN_QUEUE 32
110#endif
111
Linus Torvalds1da177e2005-04-16 15:20:36 -0700112#define NCR5380_implementation_fields \
113 volatile unsigned short io_port
114
115#define NCR5380_local_declare() \
116 volatile unsigned short io_port
117
118#define NCR5380_setup(instance) \
119 io_port = (instance)->io_port
120
121#define PAS16_io_port(reg) ( io_port + pas16_offset[(reg)] )
122
123#if !(PDEBUG & PDEBUG_TRANSFER)
124#define NCR5380_read(reg) ( inb(PAS16_io_port(reg)) )
125#define NCR5380_write(reg, value) ( outb((value),PAS16_io_port(reg)) )
126#else
127#define NCR5380_read(reg) \
128 (((unsigned char) printk("scsi%d : read register %d at io_port %04x\n"\
129 , instance->hostno, (reg), PAS16_io_port(reg))), inb( PAS16_io_port(reg)) )
130
131#define NCR5380_write(reg, value) \
132 (printk("scsi%d : write %02x to register %d at io_port %04x\n", \
133 instance->hostno, (value), (reg), PAS16_io_port(reg)), \
134 outb( (value),PAS16_io_port(reg) ) )
135
136#endif
137
138
139#define NCR5380_intr pas16_intr
140#define do_NCR5380_intr do_pas16_intr
141#define NCR5380_queue_command pas16_queue_command
142#define NCR5380_abort pas16_abort
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143#define NCR5380_bus_reset pas16_bus_reset
Finn Thain8c325132014-11-12 16:11:58 +1100144#define NCR5380_info pas16_info
Al Virodd7ab712013-03-31 01:15:54 -0400145#define NCR5380_show_info pas16_show_info
146#define NCR5380_write_info pas16_write_info
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147
148/* 15 14 12 10 7 5 3
149 1101 0100 1010 1000 */
150
151#define PAS16_IRQS 0xd4a8
152
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153#endif /* ndef ASM */
154#endif /* PAS16_H */