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 extern 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 22 struct 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 calculate this */ 31 u_int8_t pad[10]; 32 } __attribute__ ((packed)); 33 34 35 struct 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 * containing 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 * containing 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 154