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 20 struct 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 33 struct 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