src/add-ons/kernel/bus_managers/ide/ide_device_infoblock.h

   1 /*
   2  * Copyright 2004-2006, Haiku, Inc. All RightsReserved.
   3  * Copyright 2002/03, Thomas Kurschel. All rights reserved.
   4  *
   5  * Distributed under the terms of the MIT License.
   6  */
   7 #ifndef _IDE_DEVICE_INFOBLOCK_H_
   8 #define _IDE_DEVICE_INFOBLOCK_H_
   9
  10 /*
  11         Definition of response to IDE_CMD_IDENTIFY_DEVICE or
  12         IDE_CMD_IDENTIFY_PACKET_DEVICE
  13
  14         When a new entry is inserted, add its offset in hex
  15         and its index in decimal as a remark. Without that, you
  16         have a rough time when you messed up the offsets.
  17 */
  18
  19
  20 #include <lendian_bitfield.h>
  21
  22
  23 #define IDE_GET_INFO_BLOCK      0x2710
  24 #define IDE_GET_STATUS          0x2711
  25
  26
  27 // must be 512 bytes!!!
  28 typedef struct tagdevice_infoblock {
  29         union {                                         // 0 general configuration
  30                 struct {
  31                         LBITFIELD8 (
  32                                 _0_res1                                                 : 1,
  33                                 _0_ret1                                                 : 1,
  34                                 response_incomplete                             : 1,
  35                                 _0_ret2                                                 : 3,
  36                                 removable_controller_or_media   : 1,
  37                                 removable_media                                 : 1,
  38                                 _0_ret3                                                 : 7,
  39                                 ATA                                                             : 1  // 0 - is ATA!
  40                         );
  41                 } ata;
  42                 struct {
  43                         LBITFIELD8 (
  44                                 packet_size                                             : 2, // 0 - 12 bytes, 1 - 16 bytes
  45                                 response_incomplete                             : 1,
  46                                 _0_res2                                                 : 2,
  47                                 drq_speed                                               : 2, // 0 - 3ms, 1 - IRQ, 2 - 50µs
  48                                 removable_media                                 : 1,
  49                                 type                                                    : 5,
  50                                 _0_res13                                                : 1,
  51                                 ATAPI                                                   : 2  // 2 - is ATAPI
  52                         );
  53                 } atapi;
  54         } _0;
  55         uint16 cylinders;                       // 2
  56         uint16 dummy1;                          // 4
  57         uint16 heads;                           // 6
  58         uint16 dummy2[2];                       // 8
  59         uint16 sectors;                         // 0c
  60         uint16 dummy3[3];                       // 0e
  61         char serial_number[20];         // 14
  62         uint16 dummy4[3];                       // 28
  63         char firmware_version[8];       // 2e
  64         char model_number[40];          // 36
  65         uint16 dummy5[2];                       // 5e
  66         LBITFIELD5 (                            // 62 (49) capabilities
  67                 _49_ret1                        : 8,
  68                 DMA_supported           : 1,
  69                 LBA_supported           : 1,
  70                 IORDY_can_disable       : 1,
  71                 IORDY_supported         : 1
  72         );
  73
  74         uint16 dummy6[1];                       // 64
  75         LBITFIELD2 (                            // 66 (51) obsolete: PIO modes?
  76                 _51_obs1                        : 8,
  77                 PIO_mode                        : 8
  78         );
  79         uint16 dummy7[1];                       // 68
  80
  81         LBITFIELD3 (                            // 6a (53) validity
  82                 _54_58_valid            : 1,
  83                 _64_70_valid            : 1,
  84                 _88_valid                       : 1
  85         );
  86         uint16 current_cylinders;       // 6c (54)
  87         uint16 current_heads;           // 6e
  88         uint16 current_sectors;         // 70
  89
  90         uint16 capacity_low;            // 72 (57) ALIGNMENT SPLIT - don't merge
  91         uint16 capacity_high;
  92
  93         uint16 dummy8[1];
  94
  95         uint32 LBA_total_sectors;       // 78 (60)
  96         uint16 dummy9[1];                       // 7c
  97
  98         LBITFIELD7 (                            // 7e (63) MDMA modes
  99                 MDMA0_supported         : 1,
 100                 MDMA1_supported         : 1,
 101                 MDMA2_supported         : 1,
 102                 _63_res1                        : 5,
 103                 MDMA0_selected          : 1,
 104                 MDMA1_selected          : 1,
 105                 MDMA2_selected          : 1
 106         );
 107         uint16 dummy10[11];                     // 80
 108
 109         LBITFIELD2 (                            // 96 (75)
 110                 queue_depth                     : 5,
 111                 _75_res1                        : 9
 112         );
 113         uint16 dummy11[6];                      // 98
 114
 115         LBITFIELD16 (                           // a4 (82) supported_command_set
 116                 SMART_supported                         : 1,
 117                 security_mode_supported         : 1,
 118                 removable_media_supported       : 1,
 119                 PM_supported                            : 1,
 120                 _81_fixed                                       : 1,    // must be 0
 121                 write_cache_supported           : 1,
 122                 look_ahead_supported            : 1,
 123                 RELEASE_irq_supported           : 1,
 124
 125                 SERVICE_irq_supported           : 1,
 126                 DEVICE_RESET_supported          : 1,
 127                 HPA_supported                           : 1,
 128                 _81_obs1                                        : 1,
 129                 WRITE_BUFFER_supported          : 1,
 130                 READ_BUFFER_supported           : 1,
 131                 NOP_supported                           : 1,
 132                 _81_obs2                                        : 1
 133         );
 134         LBITFIELD15 (                           // a6 (83) supported_command_sets
 135                 DOWNLOAD_MICROCODE_supported            : 1,
 136                 DMA_QUEUED_supported                            : 1,
 137                 CFA_supported                                           : 1,
 138                 APM_supported                                           : 1,
 139                 RMSN_supported                                          : 1,
 140                 power_up_in_stand_by_supported          : 1,
 141                 SET_FEATURES_on_power_up_required       : 1,
 142                 reserved_boot_area_supported            : 1,
 143                 SET_MAX_security_supported                      : 1,
 144                 auto_acustic_managemene_supported       : 1,
 145                 _48_bit_addresses_supported                     : 1,
 146                 device_conf_overlay_supported           : 1,
 147                 FLUSH_CACHE_supported                           : 1,
 148                 FLUSH_CACHE_EXT_supported                       : 1,
 149                 _83_fixed                                                       : 2     // must be 1
 150         );
 151
 152         uint16 dummy12[4];                      // a8 (84)
 153         LBITFIELD15 (                           // b0 (88) UDMA modes
 154                 UDMA0_supported         : 1,
 155                 UDMA1_supported         : 1,
 156                 UDMA2_supported         : 1,
 157                 UDMA3_supported         : 1,
 158                 UDMA4_supported         : 1,
 159                 UDMA5_supported         : 1,
 160                 UDMA6_supported         : 1,    // !guessed
 161                 _88_res1                        : 1,
 162                 UDMA0_selected          : 1,
 163                 UDMA1_selected          : 1,
 164                 UDMA2_selected          : 1,
 165                 UDMA3_selected          : 1,
 166                 UDMA4_selected          : 1,
 167                 UDMA5_selected          : 1,
 168                 UDMA6_selected          : 1
 169         );
 170
 171         uint16 dummy89[11];                     // b2 (89)
 172         uint64 LBA48_total_sectors;     // c8 (100)
 173         uint16 dummy102[22];            // cc (104)
 174
 175         LBITFIELD2 (                            // fc (126)
 176                 last_lun                        : 2,
 177                 _126_res2                       : 14
 178         );
 179         LBITFIELD4 (                            // fe (127) RMSN support
 180                 _127_RMSN_support       : 2,// 0 = not supported, 1 = supported, 3, 4 = reserved
 181                 _127_res2                       : 6,
 182                 device_write_protect: 2,
 183                 _127_res9                       : 6
 184         );
 185         uint16 dummy14[128];            // 100 (128)
 186 } ide_device_infoblock;
 187
 188 typedef struct ide_status {
 189         uint8 _reserved;
 190         uint8 dma_status;
 191         uint8 pio_mode;
 192         uint8 dma_mode;
 193 } ide_status;
 194
 195 #endif  /* _IDE_DEVICE_INFOBLOCK_H_ */