[148] | 1 | ; Project name : XTIDE Universal BIOS
|
---|
[3] | 2 | ; Description : Int 13h function AH=9h, Initialize Drive Parameters.
|
---|
| 3 |
|
---|
[376] | 4 | ;
|
---|
| 5 | ; XTIDE Universal BIOS and Associated Tools
|
---|
| 6 | ; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2012 by XTIDE Universal BIOS Team.
|
---|
| 7 | ;
|
---|
| 8 | ; This program is free software; you can redistribute it and/or modify
|
---|
| 9 | ; it under the terms of the GNU General Public License as published by
|
---|
| 10 | ; the Free Software Foundation; either version 2 of the License, or
|
---|
| 11 | ; (at your option) any later version.
|
---|
| 12 | ;
|
---|
| 13 | ; This program is distributed in the hope that it will be useful,
|
---|
| 14 | ; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
| 15 | ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
| 16 | ; GNU General Public License for more details.
|
---|
| 17 | ; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
|
---|
| 18 | ;
|
---|
| 19 |
|
---|
[3] | 20 | ; Section containing code
|
---|
| 21 | SECTION .text
|
---|
| 22 |
|
---|
| 23 | ;--------------------------------------------------------------------
|
---|
| 24 | ; Int 13h function AH=9h, Initialize Drive Parameters.
|
---|
| 25 | ;
|
---|
| 26 | ; AH9h_HandlerForInitializeDriveParameters
|
---|
| 27 | ; Parameters:
|
---|
[148] | 28 | ; DL: Translated Drive number
|
---|
| 29 | ; DS:DI: Ptr to DPT (in RAMVARS segment)
|
---|
[150] | 30 | ; SS:BP: Ptr to IDEPACK
|
---|
| 31 | ; Returns with INTPACK:
|
---|
[3] | 32 | ; AH: Int 13h return status
|
---|
[294] | 33 | ; CF: 0 if successful, 1 if error
|
---|
[3] | 34 | ;--------------------------------------------------------------------
|
---|
| 35 | AH9h_HandlerForInitializeDriveParameters:
|
---|
[84] | 36 | %ifndef USE_186
|
---|
[3] | 37 | call AH9h_InitializeDriveForUse
|
---|
[148] | 38 | jmp Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAH
|
---|
[84] | 39 | %else
|
---|
[148] | 40 | push Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAH
|
---|
[162] | 41 | ; Fall to AH9h_InitializeDriveForUse
|
---|
[84] | 42 | %endif
|
---|
[3] | 43 |
|
---|
| 44 |
|
---|
| 45 | ;--------------------------------------------------------------------
|
---|
| 46 | ; Initialized drive to be ready for use.
|
---|
| 47 | ;
|
---|
| 48 | ; AH9h_InitializeDriveForUse
|
---|
| 49 | ; Parameters:
|
---|
[148] | 50 | ; DS:DI: Ptr to DPT (in RAMVARS segment)
|
---|
[150] | 51 | ; SS:BP: Ptr to IDEPACK
|
---|
[3] | 52 | ; Returns:
|
---|
| 53 | ; AH: Int 13h return status
|
---|
[294] | 54 | ; CF: 0 if successful, 1 if error
|
---|
[3] | 55 | ; Corrupts registers:
|
---|
[363] | 56 | ; AL, BX, CX, DX
|
---|
[3] | 57 | ;--------------------------------------------------------------------
|
---|
| 58 | AH9h_InitializeDriveForUse:
|
---|
[363] | 59 | push es
|
---|
[276] | 60 | push si
|
---|
[3] | 61 |
|
---|
[258] | 62 | %ifdef MODULE_SERIAL
|
---|
[363] | 63 | ; no need to do this for serial devices
|
---|
[258] | 64 | xor ah, ah
|
---|
| 65 | test byte [di+DPT.bFlagsHigh], FLGH_DPT_SERIAL_DEVICE ; Clears CF
|
---|
[363] | 66 | jnz .ReturnWithErrorCodeInAH
|
---|
| 67 |
|
---|
| 68 | %else
|
---|
[365] | 69 | ; Clear Initialization Error flags from DPT
|
---|
| 70 | mov BYTE [di+DPT_ATA.bInitError], 0
|
---|
[258] | 71 | %endif
|
---|
[294] | 72 |
|
---|
[3] | 73 | ; Try to select drive and wait until ready
|
---|
[150] | 74 | call AccessDPT_GetDriveSelectByteToAL
|
---|
| 75 | mov [bp+IDEPACK.bDrvAndHead], al
|
---|
| 76 | call Device_SelectDrive
|
---|
[365] | 77 | mov al, FLG_INITERROR_FAILED_TO_SELECT_DRIVE
|
---|
| 78 | call SetErrorFlagFromALwithErrorCodeInAH
|
---|
[363] | 79 | jc SHORT .ReturnWithErrorCodeInAH
|
---|
[3] | 80 |
|
---|
| 81 | ; Initialize CHS parameters if LBA is not used
|
---|
[150] | 82 | call InitializeDeviceParameters
|
---|
[365] | 83 | mov al, FLG_INITERROR_FAILED_TO_INITIALIZE_CHS_PARAMETERS
|
---|
| 84 | call SetErrorFlagFromALwithErrorCodeInAH
|
---|
[3] | 85 |
|
---|
[276] | 86 | ; Enable or Disable Write Cache
|
---|
[279] | 87 | call SetWriteCache
|
---|
[365] | 88 | mov al, FLG_INITERROR_FAILED_TO_SET_WRITE_CACHE
|
---|
| 89 | call SetErrorFlagFromALwithErrorCodeInAH
|
---|
[276] | 90 |
|
---|
[3] | 91 | ; Recalibrate drive by seeking to cylinder 0
|
---|
| 92 | .RecalibrateDrive:
|
---|
| 93 | call AH11h_RecalibrateDrive
|
---|
[365] | 94 | mov al, FLG_INITERROR_FAILED_TO_RECALIBRATE_DRIVE
|
---|
| 95 | call SetErrorFlagFromALwithErrorCodeInAH
|
---|
[3] | 96 |
|
---|
| 97 | ; Initialize block mode transfers
|
---|
| 98 | .InitializeBlockMode:
|
---|
[150] | 99 | call InitializeBlockMode
|
---|
[365] | 100 | mov al, FLG_INITERROR_FAILED_TO_SET_BLOCK_MODE
|
---|
| 101 | call SetErrorFlagFromALwithErrorCodeInAH
|
---|
[3] | 102 |
|
---|
[363] | 103 | %ifdef MODULE_ADVANCED_ATA
|
---|
| 104 | ; Initialize fastest supported PIO mode
|
---|
| 105 | .InitializePioMode:
|
---|
| 106 | call InitializePioMode
|
---|
[365] | 107 | mov al, FLG_INITERROR_FAILED_TO_SET_PIO_MODE
|
---|
| 108 | call SetErrorFlagFromALwithErrorCodeInAH
|
---|
[363] | 109 | %endif
|
---|
| 110 |
|
---|
| 111 | ; There might have been several errors so just return
|
---|
| 112 | ; one error code for them all
|
---|
[365] | 113 | cmp BYTE [di+DPT_ATA.bInitError], 0
|
---|
| 114 | je SHORT .ReturnWithErrorCodeInAH
|
---|
[363] | 115 | mov ah, RET_HD_RESETFAIL
|
---|
| 116 | stc
|
---|
| 117 |
|
---|
| 118 | .ReturnWithErrorCodeInAH:
|
---|
[276] | 119 | pop si
|
---|
[363] | 120 | pop es
|
---|
[3] | 121 | ret
|
---|
| 122 |
|
---|
| 123 |
|
---|
| 124 | ;--------------------------------------------------------------------
|
---|
[150] | 125 | ; InitializeDeviceParameters
|
---|
[3] | 126 | ; Parameters:
|
---|
[150] | 127 | ; DS:DI: Ptr to DPT (in RAMVARS segment)
|
---|
| 128 | ; SS:BP: Ptr to IDEPACK
|
---|
[3] | 129 | ; Returns:
|
---|
| 130 | ; AH: BIOS Error code
|
---|
[294] | 131 | ; CF: Cleared if successful
|
---|
[3] | 132 | ; Set if any error
|
---|
| 133 | ; Corrupts registers:
|
---|
[150] | 134 | ; AL, BX, CX, DX
|
---|
[3] | 135 | ;--------------------------------------------------------------------
|
---|
[150] | 136 | InitializeDeviceParameters:
|
---|
[3] | 137 | ; No need to initialize CHS parameters if LBA mode enabled
|
---|
[158] | 138 | test BYTE [di+DPT.bFlagsLow], FLG_DRVNHEAD_LBA ; Clear CF
|
---|
[150] | 139 | jnz SHORT ReturnSuccessSinceInitializationNotNeeded
|
---|
[3] | 140 |
|
---|
[157] | 141 | ; Initialize Logical Sectors per Track and Max Head number
|
---|
[227] | 142 | mov ah, [di+DPT.bPchsHeads]
|
---|
[150] | 143 | dec ah ; Max Head number
|
---|
[227] | 144 | mov dl, [di+DPT.bPchsSectors] ; Sectors per Track
|
---|
[150] | 145 | mov al, COMMAND_INITIALIZE_DEVICE_PARAMETERS
|
---|
| 146 | mov bx, TIMEOUT_AND_STATUS_TO_WAIT(TIMEOUT_BSY, FLG_STATUS_BSY)
|
---|
| 147 | jmp Idepack_StoreNonExtParametersAndIssueCommandFromAL
|
---|
[3] | 148 |
|
---|
| 149 |
|
---|
| 150 | ;--------------------------------------------------------------------
|
---|
[276] | 151 | ; SetWriteCache
|
---|
| 152 | ; Parameters:
|
---|
| 153 | ; DS:DI: Ptr to DPT (in RAMVARS segment)
|
---|
| 154 | ; Returns:
|
---|
| 155 | ; AH: BIOS Error code
|
---|
[294] | 156 | ; CF: Cleared if successful
|
---|
[276] | 157 | ; Set if any error
|
---|
| 158 | ; Corrupts registers:
|
---|
| 159 | ; AL, BX, CX, DX, SI
|
---|
| 160 | ;--------------------------------------------------------------------
|
---|
| 161 | SetWriteCache:
|
---|
| 162 | call AccessDPT_GetPointerToDRVPARAMStoCSBX
|
---|
| 163 | mov bl, [cs:bx+DRVPARAMS.wFlags]
|
---|
| 164 | and bx, BYTE MASK_DRVPARAMS_WRITECACHE
|
---|
| 165 | jz SHORT ReturnSuccessSinceInitializationNotNeeded ; DEFAULT_WRITE_CACHE
|
---|
| 166 | mov si, [cs:bx+.rgbWriteCacheCommands]
|
---|
| 167 | jmp AH23h_SetControllerFeatures
|
---|
| 168 |
|
---|
| 169 | .rgbWriteCacheCommands:
|
---|
| 170 | db 0 ; DEFAULT_WRITE_CACHE
|
---|
| 171 | db FEATURE_DISABLE_WRITE_CACHE ; DISABLE_WRITE_CACHE
|
---|
| 172 | db FEATURE_ENABLE_WRITE_CACHE ; ENABLE_WRITE_CACHE
|
---|
| 173 |
|
---|
| 174 |
|
---|
[363] | 175 | %ifdef MODULE_ADVANCED_ATA
|
---|
[276] | 176 | ;--------------------------------------------------------------------
|
---|
[363] | 177 | ; InitializePioMode
|
---|
| 178 | ; Parameters:
|
---|
| 179 | ; DS:DI: Ptr to DPT (in RAMVARS segment)
|
---|
| 180 | ; Returns:
|
---|
| 181 | ; AH: BIOS Error code
|
---|
| 182 | ; CF: Cleared if successful
|
---|
| 183 | ; Set if any error
|
---|
| 184 | ; Corrupts registers:
|
---|
| 185 | ; AL, BX, CX, DX
|
---|
| 186 | ;--------------------------------------------------------------------
|
---|
| 187 | InitializePioMode:
|
---|
[364] | 188 | mov dl, PIO_DEFAULT_MODE_DISABLE_IORDY
|
---|
| 189 | test BYTE [di+DPT.bFlagsHigh], FLGH_DPT_IORDY
|
---|
| 190 | jz SHORT .IordyNotSupported
|
---|
| 191 |
|
---|
| 192 | ; Advanced PIO mode 3 and above
|
---|
| 193 | mov dl, [di+DPT_ADVANCED_ATA.bPioMode]
|
---|
| 194 | or dl, PIO_FLOW_CONTROL_MODE_xxx
|
---|
| 195 |
|
---|
| 196 | .IordyNotSupported:
|
---|
[363] | 197 | mov si, FEATURE_SET_TRANSFER_MODE
|
---|
| 198 | jmp AH23h_SetControllerFeatures
|
---|
| 199 | %endif
|
---|
| 200 |
|
---|
| 201 |
|
---|
| 202 | ;--------------------------------------------------------------------
|
---|
[150] | 203 | ; InitializeBlockMode
|
---|
[3] | 204 | ; Parameters:
|
---|
[150] | 205 | ; DS:DI: Ptr to DPT (in RAMVARS segment)
|
---|
[3] | 206 | ; Returns:
|
---|
| 207 | ; AH: BIOS Error code
|
---|
[294] | 208 | ; CF: Cleared if successful
|
---|
[3] | 209 | ; Set if any error
|
---|
| 210 | ; Corrupts registers:
|
---|
| 211 | ; AL, BX, CX, DX
|
---|
| 212 | ;--------------------------------------------------------------------
|
---|
[150] | 213 | InitializeBlockMode:
|
---|
[158] | 214 | test BYTE [di+DPT.bFlagsHigh], FLGH_DPT_BLOCK_MODE_SUPPORTED ; Clear CF
|
---|
[365] | 215 | jz SHORT .BlockModeNotSupportedOrDisabled
|
---|
[276] | 216 | call AccessDPT_GetPointerToDRVPARAMStoCSBX
|
---|
| 217 | test BYTE [cs:bx+DRVPARAMS.wFlags], FLG_DRVPARAMS_BLOCKMODE
|
---|
[365] | 218 | jz SHORT .BlockModeNotSupportedOrDisabled
|
---|
[363] | 219 |
|
---|
[365] | 220 | ; Try block sizes until we find largest possible supported by drive
|
---|
| 221 | mov bl, 128
|
---|
| 222 | .TryNextBlockSize:
|
---|
| 223 | mov al, bl
|
---|
| 224 | call AH24h_SetBlockSize
|
---|
| 225 | jnc SHORT .SupportedBlockSizeFound
|
---|
| 226 | shr bl, 1 ; Try next size
|
---|
| 227 | jmp SHORT .TryNextBlockSize
|
---|
| 228 | .SupportedBlockSizeFound:
|
---|
| 229 | mov [di+DPT_ATA.bBlockSize], bl
|
---|
| 230 | .BlockModeNotSupportedOrDisabled:
|
---|
| 231 | ReturnSuccessSinceInitializationNotNeeded:
|
---|
[363] | 232 | ret
|
---|
| 233 |
|
---|
| 234 |
|
---|
| 235 | ;--------------------------------------------------------------------
|
---|
[365] | 236 | ; SetErrorFlagFromALwithErrorCodeInAH
|
---|
[363] | 237 | ; Parameters:
|
---|
| 238 | ; AH: BIOS Error Code
|
---|
| 239 | ; AL: Error flag to set
|
---|
| 240 | ; DS:DI: Ptr to DPT
|
---|
| 241 | ; Returns:
|
---|
| 242 | ; CF: Clear if no error
|
---|
| 243 | ; Set if error flag was set
|
---|
| 244 | ; Corrupts registers:
|
---|
[370] | 245 | ; Nothing
|
---|
[363] | 246 | ;--------------------------------------------------------------------
|
---|
[365] | 247 | SetErrorFlagFromALwithErrorCodeInAH:
|
---|
| 248 | jnc SHORT .NoErrorFlagToSet
|
---|
[363] | 249 | cmp ah, RET_HD_INVALID
|
---|
| 250 | jbe SHORT .IgnoreInvalidCommandError
|
---|
| 251 |
|
---|
[365] | 252 | or [di+DPT_ATA.bInitError], al
|
---|
[363] | 253 | stc
|
---|
| 254 | ret
|
---|
| 255 | .IgnoreInvalidCommandError:
|
---|
[276] | 256 | xor ah, ah
|
---|
[365] | 257 | .NoErrorFlagToSet:
|
---|
[3] | 258 | ret
|
---|