root/arch/parisc/include/asm/eisa_eeprom.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * eisa_eeprom.h - provide support for EISA adapters in PA-RISC machines
   4  *
   5  * Copyright (c) 2001, 2002 Daniel Engstrom <5116@telia.com>
   6  */
   7 
   8 #ifndef ASM_EISA_EEPROM_H
   9 #define ASM_EISA_EEPROM_H
  10 
  11 extern void __iomem *eisa_eeprom_addr;
  12 
  13 #define HPEE_MAX_LENGTH       0x2000    /* maximum eeprom length */
  14 
  15 #define HPEE_SLOT_INFO(slot) (20+(48*slot))
  16 
  17 struct eeprom_header 
  18 {
  19    
  20         u_int32_t num_writes;       /* number of writes */
  21         u_int8_t  flags;            /* flags, usage? */
  22         u_int8_t  ver_maj;
  23         u_int8_t  ver_min;
  24         u_int8_t  num_slots;        /* number of EISA slots in system */
  25         u_int16_t csum;             /* checksum, I don't know how to calculate this */
  26         u_int8_t  pad[10];
  27 } __attribute__ ((packed));
  28 
  29 
  30 struct eeprom_eisa_slot_info
  31 {
  32         u_int32_t eisa_slot_id;
  33         u_int32_t config_data_offset;
  34         u_int32_t num_writes;
  35         u_int16_t csum;
  36         u_int16_t num_functions;
  37         u_int16_t config_data_length;
  38         
  39         /* bits 0..3 are the duplicate slot id */ 
  40 #define HPEE_SLOT_INFO_EMBEDDED  0x10
  41 #define HPEE_SLOT_INFO_VIRTUAL   0x20
  42 #define HPEE_SLOT_INFO_NO_READID 0x40
  43 #define HPEE_SLOT_INFO_DUPLICATE 0x80
  44         u_int8_t slot_info;
  45         
  46 #define HPEE_SLOT_FEATURES_ENABLE         0x01
  47 #define HPEE_SLOT_FEATURES_IOCHK          0x02
  48 #define HPEE_SLOT_FEATURES_CFG_INCOMPLETE 0x80
  49         u_int8_t slot_features;
  50         
  51         u_int8_t  ver_min;
  52         u_int8_t  ver_maj;
  53         
  54 #define HPEE_FUNCTION_INFO_HAVE_TYPE      0x01
  55 #define HPEE_FUNCTION_INFO_HAVE_MEMORY    0x02
  56 #define HPEE_FUNCTION_INFO_HAVE_IRQ       0x04
  57 #define HPEE_FUNCTION_INFO_HAVE_DMA       0x08
  58 #define HPEE_FUNCTION_INFO_HAVE_PORT      0x10
  59 #define HPEE_FUNCTION_INFO_HAVE_PORT_INIT 0x20
  60 /* I think there are two slighty different 
  61  * versions of the function_info field 
  62  * one int the fixed header and one optional 
  63  * in the parsed slot data area */
  64 #define HPEE_FUNCTION_INFO_HAVE_FUNCTION  0x01
  65 #define HPEE_FUNCTION_INFO_F_DISABLED     0x80
  66 #define HPEE_FUNCTION_INFO_CFG_FREE_FORM  0x40
  67         u_int8_t  function_info;
  68 
  69 #define HPEE_FLAG_BOARD_IS_ISA            0x01 /* flag and minor version for isa board */
  70         u_int8_t  flags;
  71         u_int8_t  pad[24];
  72 } __attribute__ ((packed));
  73 
  74 
  75 #define HPEE_MEMORY_MAX_ENT   9
  76 /* memory descriptor: byte 0 */
  77 #define HPEE_MEMORY_WRITABLE  0x01
  78 #define HPEE_MEMORY_CACHABLE  0x02
  79 #define HPEE_MEMORY_TYPE_MASK 0x18
  80 #define HPEE_MEMORY_TYPE_SYS  0x00
  81 #define HPEE_MEMORY_TYPE_EXP  0x08
  82 #define HPEE_MEMORY_TYPE_VIR  0x10
  83 #define HPEE_MEMORY_TYPE_OTH  0x18
  84 #define HPEE_MEMORY_SHARED    0x20
  85 #define HPEE_MEMORY_MORE      0x80
  86 
  87 /* memory descriptor: byte 1 */
  88 #define HPEE_MEMORY_WIDTH_MASK 0x03
  89 #define HPEE_MEMORY_WIDTH_BYTE 0x00
  90 #define HPEE_MEMORY_WIDTH_WORD 0x01
  91 #define HPEE_MEMORY_WIDTH_DWORD 0x02
  92 #define HPEE_MEMORY_DECODE_MASK 0x0c
  93 #define HPEE_MEMORY_DECODE_20BITS 0x00
  94 #define HPEE_MEMORY_DECODE_24BITS 0x04
  95 #define HPEE_MEMORY_DECODE_32BITS 0x08
  96 /* byte 2 and 3 are a 16bit LE value
  97  * containing the memory size in kilobytes */
  98 /* byte 4,5,6 are a 24bit LE value
  99  * containing the memory base address */
 100 
 101 
 102 #define HPEE_IRQ_MAX_ENT      7
 103 /* Interrupt entry: byte 0 */
 104 #define HPEE_IRQ_CHANNEL_MASK 0xf
 105 #define HPEE_IRQ_TRIG_LEVEL   0x20
 106 #define HPEE_IRQ_MORE         0x80
 107 /* byte 1 seems to be unused */
 108 
 109 #define HPEE_DMA_MAX_ENT     4
 110 
 111 /* dma entry: byte 0 */
 112 #define HPEE_DMA_CHANNEL_MASK 7
 113 #define HPEE_DMA_SIZE_MASK      0xc
 114 #define HPEE_DMA_SIZE_BYTE      0x0
 115 #define HPEE_DMA_SIZE_WORD      0x4
 116 #define HPEE_DMA_SIZE_DWORD     0x8
 117 #define HPEE_DMA_SHARED      0x40
 118 #define HPEE_DMA_MORE        0x80
 119 
 120 /* dma entry: byte 1 */
 121 #define HPEE_DMA_TIMING_MASK 0x30
 122 #define HPEE_DMA_TIMING_ISA     0x0
 123 #define HPEE_DMA_TIMING_TYPEA 0x10
 124 #define HPEE_DMA_TIMING_TYPEB 0x20
 125 #define HPEE_DMA_TIMING_TYPEC 0x30
 126 
 127 #define HPEE_PORT_MAX_ENT 20
 128 /* port entry byte 0 */
 129 #define HPEE_PORT_SIZE_MASK 0x1f
 130 #define HPEE_PORT_SHARED    0x40
 131 #define HPEE_PORT_MORE      0x80
 132 /* byte 1 and 2 is a 16bit LE value
 133  * containing the start port number */
 134 
 135 #define HPEE_PORT_INIT_MAX_LEN     60 /* in bytes here */
 136 /* port init entry byte 0 */
 137 #define HPEE_PORT_INIT_WIDTH_MASK  0x3
 138 #define HPEE_PORT_INIT_WIDTH_BYTE  0x0
 139 #define HPEE_PORT_INIT_WIDTH_WORD  0x1
 140 #define HPEE_PORT_INIT_WIDTH_DWORD 0x2
 141 #define HPEE_PORT_INIT_MASK        0x4
 142 #define HPEE_PORT_INIT_MORE        0x80
 143 
 144 #define HPEE_SELECTION_MAX_ENT 26
 145 
 146 #define HPEE_TYPE_MAX_LEN    80
 147 
 148 #endif