1/*
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
16#define HPEE_MAX_LENGTH       0x2000	/* maximum eeprom length */
17
18#define HPEE_SLOT_INFO(slot) (20+(48*slot))
19
20struct eeprom_header
21{
22
23	u_int32_t num_writes;       /* number of writes */
24 	u_int8_t  flags;            /* flags, usage? */
25	u_int8_t  ver_maj;
26	u_int8_t  ver_min;
27	u_int8_t  num_slots;        /* number of EISA slots in system */
28	u_int16_t csum;             /* checksum, I dont know how to calulate this */
29	u_int8_t  pad[10];
30} __attribute__ ((packed));
31
32
33struct eeprom_eisa_slot_info
34{
35	u_int32_t eisa_slot_id;
36	u_int32_t config_data_offset;
37	u_int32_t num_writes;
38	u_int16_t csum;
39	u_int16_t num_functions;
40	u_int16_t config_data_length;
41
42	/* bits 0..3 are the duplicate slot id */
43#define HPEE_SLOT_INFO_EMBEDDED  0x10
44#define HPEE_SLOT_INFO_VIRTUAL   0x20
45#define HPEE_SLOT_INFO_NO_READID 0x40
46#define HPEE_SLOT_INFO_DUPLICATE 0x80
47	u_int8_t slot_info;
48
49#define HPEE_SLOT_FEATURES_ENABLE         0x01
50#define HPEE_SLOT_FEATURES_IOCHK          0x02
51#define HPEE_SLOT_FEATURES_CFG_INCOMPLETE 0x80
52	u_int8_t slot_features;
53
54	u_int8_t  ver_min;
55	u_int8_t  ver_maj;
56
57#define HPEE_FUNCTION_INFO_HAVE_TYPE      0x01
58#define HPEE_FUNCTION_INFO_HAVE_MEMORY    0x02
59#define HPEE_FUNCTION_INFO_HAVE_IRQ       0x04
60#define HPEE_FUNCTION_INFO_HAVE_DMA       0x08
61#define HPEE_FUNCTION_INFO_HAVE_PORT      0x10
62#define HPEE_FUNCTION_INFO_HAVE_PORT_INIT 0x20
63/* I think there are two slighty different
64 * versions of the function_info field
65 * one int the fixed header and one optional
66 * in the parsed slot data area */
67#define HPEE_FUNCTION_INFO_HAVE_FUNCTION  0x01
68#define HPEE_FUNCTION_INFO_F_DISABLED     0x80
69#define HPEE_FUNCTION_INFO_CFG_FREE_FORM  0x40
70	u_int8_t  function_info;
71
72#define HPEE_FLAG_BOARD_IS_ISA		  0x01 /* flag and minor version for isa board */
73	u_int8_t  flags;
74	u_int8_t  pad[24];
75} __attribute__ ((packed));
76
77
78#define HPEE_MEMORY_MAX_ENT   9
79/* memory descriptor: byte 0 */
80#define HPEE_MEMORY_WRITABLE  0x01
81#define HPEE_MEMORY_CACHABLE  0x02
82#define HPEE_MEMORY_TYPE_MASK 0x18
83#define HPEE_MEMORY_TYPE_SYS  0x00
84#define HPEE_MEMORY_TYPE_EXP  0x08
85#define HPEE_MEMORY_TYPE_VIR  0x10
86#define HPEE_MEMORY_TYPE_OTH  0x18
87#define HPEE_MEMORY_SHARED    0x20
88#define HPEE_MEMORY_MORE      0x80
89
90/* memory descriptor: byte 1 */
91#define HPEE_MEMORY_WIDTH_MASK 0x03
92#define HPEE_MEMORY_WIDTH_BYTE 0x00
93#define HPEE_MEMORY_WIDTH_WORD 0x01
94#define HPEE_MEMORY_WIDTH_DWORD 0x02
95#define HPEE_MEMORY_DECODE_MASK 0x0c
96#define HPEE_MEMORY_DECODE_20BITS 0x00
97#define HPEE_MEMORY_DECODE_24BITS 0x04
98#define HPEE_MEMORY_DECODE_32BITS 0x08
99/* byte 2 and 3 are a 16bit LE value
100 * containging the memory size in kilobytes */
101/* byte 4,5,6 are a 24bit LE value
102 * containing the memory base address */
103
104
105#define HPEE_IRQ_MAX_ENT      7
106/* Interrupt entry: byte 0 */
107#define HPEE_IRQ_CHANNEL_MASK 0xf
108#define HPEE_IRQ_TRIG_LEVEL   0x20
109#define HPEE_IRQ_MORE         0x80
110/* byte 1 seems to be unused */
111
112#define HPEE_DMA_MAX_ENT     4
113
114/* dma entry: byte 0 */
115#define HPEE_DMA_CHANNEL_MASK 7
116#define HPEE_DMA_SIZE_MASK	0xc
117#define HPEE_DMA_SIZE_BYTE	0x0
118#define HPEE_DMA_SIZE_WORD	0x4
119#define HPEE_DMA_SIZE_DWORD	0x8
120#define HPEE_DMA_SHARED      0x40
121#define HPEE_DMA_MORE        0x80
122
123/* dma entry: byte 1 */
124#define HPEE_DMA_TIMING_MASK 0x30
125#define HPEE_DMA_TIMING_ISA	0x0
126#define HPEE_DMA_TIMING_TYPEA 0x10
127#define HPEE_DMA_TIMING_TYPEB 0x20
128#define HPEE_DMA_TIMING_TYPEC 0x30
129
130#define HPEE_PORT_MAX_ENT 20
131/* port entry byte 0 */
132#define HPEE_PORT_SIZE_MASK 0x1f
133#define HPEE_PORT_SHARED    0x40
134#define HPEE_PORT_MORE      0x80
135/* byte 1 and 2 is a 16bit LE value
136 * conating the start port number */
137
138#define HPEE_PORT_INIT_MAX_LEN     60 /* in bytes here */
139/* port init entry byte 0 */
140#define HPEE_PORT_INIT_WIDTH_MASK  0x3
141#define HPEE_PORT_INIT_WIDTH_BYTE  0x0
142#define HPEE_PORT_INIT_WIDTH_WORD  0x1
143#define HPEE_PORT_INIT_WIDTH_DWORD 0x2
144#define HPEE_PORT_INIT_MASK        0x4
145#define HPEE_PORT_INIT_MORE        0x80
146
147#define HPEE_SELECTION_MAX_ENT 26
148
149#define HPEE_TYPE_MAX_LEN    80
150
151#endif
152