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git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - drivers/scsi/pas16.h
2 * This driver adapted from Drew Eckhardt's Trantor T128 driver
4 * Copyright 1993, Drew Eckhardt
6 * (Unix and Linux consulting and custom programming)
10 * ( Based on T128 - DISTRIBUTION RELEASE 3. )
12 * Modified to work with the Pro Audio Spectrum/Studio 16
16 * For more information, please consult
27 #define PDEBUG_INIT 0x1
28 #define PDEBUG_TRANSFER 0x2
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
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
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.
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.
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 */
62 #define P_TIMEOUT_STATUS_REG_OFFSET 0x4001
63 #define P_TS_TIM 0x80 /* check timeout status */
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
73 #define P_TS_ENABLE_TO_ERR_INTERRUPT /* Enable timeout error int. */
74 #define P_TS_ENABLE_WAIT /* Enable Wait */
76 #define P_TS_CT 0x01 /* clear timeout. Note: writing
77 * to this register clears the
78 * timeout error int. or status
83 * The data register reads/writes to/from the 5380 in pseudo-DMA mode
86 #define P_DATA_REG_OFFSET 0x5c00 /* rw */
88 #define P_STATUS_REG_OFFSET 0x5c01 /* ro */
89 #define P_ST_RDY 0x80 /* 5380 DDRQ Status */
91 #define P_IRQ_STATUS 0x5c03
92 #define P_IS_IRQ 0x80 /* DIRQ status */
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
105 #define CMD_PER_LUN 2
112 #define NCR5380_implementation_fields \
113 volatile unsigned short io_port
115 #define NCR5380_local_declare() \
116 volatile unsigned short io_port
118 #define NCR5380_setup(instance) \
119 io_port = (instance)->io_port
121 #define PAS16_io_port(reg) ( io_port + pas16_offset[(reg)] )
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)) )
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)) )
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) ) )
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
143 #define NCR5380_bus_reset pas16_bus_reset
144 #define NCR5380_info pas16_info
145 #define NCR5380_show_info pas16_show_info
146 #define NCR5380_write_info pas16_write_info
149 1101 0100 1010 1000 */
151 #define PAS16_IRQS 0xd4a8
153 #endif /* ndef ASM */