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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * eisa_eeprom.h - provide support for EISA adapters in PA-RISC machines
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 *
9 * Copyright (c) 2001, 2002 Daniel Engstrom <5116@telia.com>
10 *
11 */
12
13#ifndef ASM_EISA_EEPROM_H
14#define ASM_EISA_EEPROM_H
15
16extern void __iomem *eisa_eeprom_addr;
17
18#define HPEE_MAX_LENGTH 0x2000 /* maximum eeprom length */
19
20#define HPEE_SLOT_INFO(slot) (20+(48*slot))
21
22struct eeprom_header
23{
24
25 u_int32_t num_writes; /* number of writes */
26 u_int8_t flags; /* flags, usage? */
27 u_int8_t ver_maj;
28 u_int8_t ver_min;
29 u_int8_t num_slots; /* number of EISA slots in system */
30 u_int16_t csum; /* checksum, I don't know how to calulate this */
31 u_int8_t pad[10];
32} __attribute__ ((packed));
33
34
35struct eeprom_eisa_slot_info
36{
37 u_int32_t eisa_slot_id;
38 u_int32_t config_data_offset;
39 u_int32_t num_writes;
40 u_int16_t csum;
41 u_int16_t num_functions;
42 u_int16_t config_data_length;
43
44 /* bits 0..3 are the duplicate slot id */
45#define HPEE_SLOT_INFO_EMBEDDED 0x10
46#define HPEE_SLOT_INFO_VIRTUAL 0x20
47#define HPEE_SLOT_INFO_NO_READID 0x40
48#define HPEE_SLOT_INFO_DUPLICATE 0x80
49 u_int8_t slot_info;
50
51#define HPEE_SLOT_FEATURES_ENABLE 0x01
52#define HPEE_SLOT_FEATURES_IOCHK 0x02
53#define HPEE_SLOT_FEATURES_CFG_INCOMPLETE 0x80
54 u_int8_t slot_features;
55
56 u_int8_t ver_min;
57 u_int8_t ver_maj;
58
59#define HPEE_FUNCTION_INFO_HAVE_TYPE 0x01
60#define HPEE_FUNCTION_INFO_HAVE_MEMORY 0x02
61#define HPEE_FUNCTION_INFO_HAVE_IRQ 0x04
62#define HPEE_FUNCTION_INFO_HAVE_DMA 0x08
63#define HPEE_FUNCTION_INFO_HAVE_PORT 0x10
64#define HPEE_FUNCTION_INFO_HAVE_PORT_INIT 0x20
65/* I think there are two slighty different
66 * versions of the function_info field
67 * one int the fixed header and one optional
68 * in the parsed slot data area */
69#define HPEE_FUNCTION_INFO_HAVE_FUNCTION 0x01
70#define HPEE_FUNCTION_INFO_F_DISABLED 0x80
71#define HPEE_FUNCTION_INFO_CFG_FREE_FORM 0x40
72 u_int8_t function_info;
73
74#define HPEE_FLAG_BOARD_IS_ISA 0x01 /* flag and minor version for isa board */
75 u_int8_t flags;
76 u_int8_t pad[24];
77} __attribute__ ((packed));
78
79
80#define HPEE_MEMORY_MAX_ENT 9
81/* memory descriptor: byte 0 */
82#define HPEE_MEMORY_WRITABLE 0x01
83#define HPEE_MEMORY_CACHABLE 0x02
84#define HPEE_MEMORY_TYPE_MASK 0x18
85#define HPEE_MEMORY_TYPE_SYS 0x00
86#define HPEE_MEMORY_TYPE_EXP 0x08
87#define HPEE_MEMORY_TYPE_VIR 0x10
88#define HPEE_MEMORY_TYPE_OTH 0x18
89#define HPEE_MEMORY_SHARED 0x20
90#define HPEE_MEMORY_MORE 0x80
91
92/* memory descriptor: byte 1 */
93#define HPEE_MEMORY_WIDTH_MASK 0x03
94#define HPEE_MEMORY_WIDTH_BYTE 0x00
95#define HPEE_MEMORY_WIDTH_WORD 0x01
96#define HPEE_MEMORY_WIDTH_DWORD 0x02
97#define HPEE_MEMORY_DECODE_MASK 0x0c
98#define HPEE_MEMORY_DECODE_20BITS 0x00
99#define HPEE_MEMORY_DECODE_24BITS 0x04
100#define HPEE_MEMORY_DECODE_32BITS 0x08
101/* byte 2 and 3 are a 16bit LE value
102 * containging the memory size in kilobytes */
103/* byte 4,5,6 are a 24bit LE value
104 * containing the memory base address */
105
106
107#define HPEE_IRQ_MAX_ENT 7
108/* Interrupt entry: byte 0 */
109#define HPEE_IRQ_CHANNEL_MASK 0xf
110#define HPEE_IRQ_TRIG_LEVEL 0x20
111#define HPEE_IRQ_MORE 0x80
112/* byte 1 seems to be unused */
113
114#define HPEE_DMA_MAX_ENT 4
115
116/* dma entry: byte 0 */
117#define HPEE_DMA_CHANNEL_MASK 7
118#define HPEE_DMA_SIZE_MASK 0xc
119#define HPEE_DMA_SIZE_BYTE 0x0
120#define HPEE_DMA_SIZE_WORD 0x4
121#define HPEE_DMA_SIZE_DWORD 0x8
122#define HPEE_DMA_SHARED 0x40
123#define HPEE_DMA_MORE 0x80
124
125/* dma entry: byte 1 */
126#define HPEE_DMA_TIMING_MASK 0x30
127#define HPEE_DMA_TIMING_ISA 0x0
128#define HPEE_DMA_TIMING_TYPEA 0x10
129#define HPEE_DMA_TIMING_TYPEB 0x20
130#define HPEE_DMA_TIMING_TYPEC 0x30
131
132#define HPEE_PORT_MAX_ENT 20
133/* port entry byte 0 */
134#define HPEE_PORT_SIZE_MASK 0x1f
135#define HPEE_PORT_SHARED 0x40
136#define HPEE_PORT_MORE 0x80
137/* byte 1 and 2 is a 16bit LE value
138 * conating the start port number */
139
140#define HPEE_PORT_INIT_MAX_LEN 60 /* in bytes here */
141/* port init entry byte 0 */
142#define HPEE_PORT_INIT_WIDTH_MASK 0x3
143#define HPEE_PORT_INIT_WIDTH_BYTE 0x0
144#define HPEE_PORT_INIT_WIDTH_WORD 0x1
145#define HPEE_PORT_INIT_WIDTH_DWORD 0x2
146#define HPEE_PORT_INIT_MASK 0x4
147#define HPEE_PORT_INIT_MORE 0x80
148
149#define HPEE_SELECTION_MAX_ENT 26
150
151#define HPEE_TYPE_MAX_LEN 80
152
153#endif