Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* Transport & Protocol Driver for In-System Design, Inc. ISD200 ASIC |
| 2 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * Current development and maintenance: |
Jan Engelhardt | 96de0e2 | 2007-10-19 23:21:04 +0200 | [diff] [blame] | 4 | * (C) 2001-2002 Björn Stenberg (bjorn@haxx.se) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | * |
| 6 | * Developed with the assistance of: |
| 7 | * (C) 2002 Alan Stern <stern@rowland.org> |
| 8 | * |
| 9 | * Initial work: |
| 10 | * (C) 2000 In-System Design, Inc. (support@in-system.com) |
| 11 | * |
| 12 | * The ISD200 ASIC does not natively support ATA devices. The chip |
| 13 | * does implement an interface, the ATA Command Block (ATACB) which provides |
| 14 | * a means of passing ATA commands and ATA register accesses to a device. |
| 15 | * |
| 16 | * This program is free software; you can redistribute it and/or modify it |
| 17 | * under the terms of the GNU General Public License as published by the |
| 18 | * Free Software Foundation; either version 2, or (at your option) any |
| 19 | * later version. |
| 20 | * |
| 21 | * This program is distributed in the hope that it will be useful, but |
| 22 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 23 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 24 | * General Public License for more details. |
| 25 | * |
| 26 | * You should have received a copy of the GNU General Public License along |
| 27 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 28 | * 675 Mass Ave, Cambridge, MA 02139, USA. |
| 29 | * |
| 30 | * History: |
| 31 | * |
| 32 | * 2002-10-19: Removed the specialized transfer routines. |
| 33 | * (Alan Stern <stern@rowland.harvard.edu>) |
| 34 | * 2001-02-24: Removed lots of duplicate code and simplified the structure. |
| 35 | * (bjorn@haxx.se) |
| 36 | * 2002-01-16: Fixed endianness bug so it works on the ppc arch. |
| 37 | * (Luc Saillard <luc@saillard.org>) |
| 38 | * 2002-01-17: All bitfields removed. |
| 39 | * (bjorn@haxx.se) |
| 40 | */ |
| 41 | |
| 42 | |
| 43 | /* Include files */ |
| 44 | |
| 45 | #include <linux/jiffies.h> |
| 46 | #include <linux/errno.h> |
Alan Stern | 32d5493 | 2009-02-12 14:47:54 -0500 | [diff] [blame] | 47 | #include <linux/module.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | #include <linux/slab.h> |
Bartlomiej Zolnierkiewicz | d8881cd | 2009-04-01 21:42:19 +0200 | [diff] [blame] | 49 | #include <linux/ata.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | #include <linux/hdreg.h> |
Boaz Harrosh | 48c23d3 | 2007-08-22 19:10:45 +0300 | [diff] [blame] | 51 | #include <linux/scatterlist.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | |
| 53 | #include <scsi/scsi.h> |
| 54 | #include <scsi/scsi_cmnd.h> |
| 55 | #include <scsi/scsi_device.h> |
| 56 | |
| 57 | #include "usb.h" |
| 58 | #include "transport.h" |
| 59 | #include "protocol.h" |
| 60 | #include "debug.h" |
| 61 | #include "scsiglue.h" |
Alan Stern | 32d5493 | 2009-02-12 14:47:54 -0500 | [diff] [blame] | 62 | |
Maciej Grela | 4246b06 | 2009-02-28 12:39:20 -0800 | [diff] [blame] | 63 | MODULE_DESCRIPTION("Driver for In-System Design, Inc. ISD200 ASIC"); |
| 64 | MODULE_AUTHOR("Björn Stenberg <bjorn@haxx.se>"); |
| 65 | MODULE_LICENSE("GPL"); |
Alan Stern | 32d5493 | 2009-02-12 14:47:54 -0500 | [diff] [blame] | 66 | |
| 67 | static int isd200_Initialization(struct us_data *us); |
| 68 | |
| 69 | |
| 70 | /* |
| 71 | * The table of devices |
| 72 | */ |
| 73 | #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \ |
| 74 | vendorName, productName, useProtocol, useTransport, \ |
| 75 | initFunction, flags) \ |
| 76 | { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ |
| 77 | .driver_info = (flags)|(USB_US_TYPE_STOR<<24) } |
| 78 | |
| 79 | struct usb_device_id isd200_usb_ids[] = { |
| 80 | # include "unusual_isd200.h" |
| 81 | { } /* Terminating entry */ |
| 82 | }; |
| 83 | MODULE_DEVICE_TABLE(usb, isd200_usb_ids); |
| 84 | |
| 85 | #undef UNUSUAL_DEV |
| 86 | #undef USUAL_DEV |
| 87 | |
| 88 | /* |
| 89 | * The flags table |
| 90 | */ |
| 91 | #define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \ |
| 92 | vendor_name, product_name, use_protocol, use_transport, \ |
| 93 | init_function, Flags) \ |
| 94 | { \ |
| 95 | .vendorName = vendor_name, \ |
| 96 | .productName = product_name, \ |
| 97 | .useProtocol = use_protocol, \ |
| 98 | .useTransport = use_transport, \ |
| 99 | .initFunction = init_function, \ |
| 100 | } |
| 101 | |
| 102 | static struct us_unusual_dev isd200_unusual_dev_list[] = { |
| 103 | # include "unusual_isd200.h" |
| 104 | { } /* Terminating entry */ |
| 105 | }; |
| 106 | |
| 107 | #undef UNUSUAL_DEV |
| 108 | #undef USUAL_DEV |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | |
| 110 | |
| 111 | /* Timeout defines (in Seconds) */ |
| 112 | |
| 113 | #define ISD200_ENUM_BSY_TIMEOUT 35 |
| 114 | #define ISD200_ENUM_DETECT_TIMEOUT 30 |
| 115 | #define ISD200_DEFAULT_TIMEOUT 30 |
| 116 | |
| 117 | /* device flags */ |
| 118 | #define DF_ATA_DEVICE 0x0001 |
| 119 | #define DF_MEDIA_STATUS_ENABLED 0x0002 |
| 120 | #define DF_REMOVABLE_MEDIA 0x0004 |
| 121 | |
| 122 | /* capability bit definitions */ |
| 123 | #define CAPABILITY_DMA 0x01 |
| 124 | #define CAPABILITY_LBA 0x02 |
| 125 | |
| 126 | /* command_setX bit definitions */ |
| 127 | #define COMMANDSET_REMOVABLE 0x02 |
| 128 | #define COMMANDSET_MEDIA_STATUS 0x10 |
| 129 | |
| 130 | /* ATA Vendor Specific defines */ |
| 131 | #define ATA_ADDRESS_DEVHEAD_STD 0xa0 |
| 132 | #define ATA_ADDRESS_DEVHEAD_LBA_MODE 0x40 |
| 133 | #define ATA_ADDRESS_DEVHEAD_SLAVE 0x10 |
| 134 | |
| 135 | /* Action Select bits */ |
| 136 | #define ACTION_SELECT_0 0x01 |
| 137 | #define ACTION_SELECT_1 0x02 |
| 138 | #define ACTION_SELECT_2 0x04 |
| 139 | #define ACTION_SELECT_3 0x08 |
| 140 | #define ACTION_SELECT_4 0x10 |
| 141 | #define ACTION_SELECT_5 0x20 |
| 142 | #define ACTION_SELECT_6 0x40 |
| 143 | #define ACTION_SELECT_7 0x80 |
| 144 | |
| 145 | /* Register Select bits */ |
| 146 | #define REG_ALTERNATE_STATUS 0x01 |
| 147 | #define REG_DEVICE_CONTROL 0x01 |
| 148 | #define REG_ERROR 0x02 |
| 149 | #define REG_FEATURES 0x02 |
| 150 | #define REG_SECTOR_COUNT 0x04 |
| 151 | #define REG_SECTOR_NUMBER 0x08 |
| 152 | #define REG_CYLINDER_LOW 0x10 |
| 153 | #define REG_CYLINDER_HIGH 0x20 |
| 154 | #define REG_DEVICE_HEAD 0x40 |
| 155 | #define REG_STATUS 0x80 |
| 156 | #define REG_COMMAND 0x80 |
| 157 | |
Bartlomiej Zolnierkiewicz | c74e809 | 2007-10-27 18:01:04 +0200 | [diff] [blame] | 158 | /* ATA registers offset definitions */ |
| 159 | #define ATA_REG_ERROR_OFFSET 1 |
| 160 | #define ATA_REG_LCYL_OFFSET 4 |
| 161 | #define ATA_REG_HCYL_OFFSET 5 |
| 162 | #define ATA_REG_STATUS_OFFSET 7 |
| 163 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | /* ATA error definitions not in <linux/hdreg.h> */ |
| 165 | #define ATA_ERROR_MEDIA_CHANGE 0x20 |
| 166 | |
| 167 | /* ATA command definitions not in <linux/hdreg.h> */ |
| 168 | #define ATA_COMMAND_GET_MEDIA_STATUS 0xDA |
| 169 | #define ATA_COMMAND_MEDIA_EJECT 0xED |
| 170 | |
| 171 | /* ATA drive control definitions */ |
| 172 | #define ATA_DC_DISABLE_INTERRUPTS 0x02 |
| 173 | #define ATA_DC_RESET_CONTROLLER 0x04 |
| 174 | #define ATA_DC_REENABLE_CONTROLLER 0x00 |
| 175 | |
| 176 | /* |
| 177 | * General purpose return codes |
| 178 | */ |
| 179 | |
| 180 | #define ISD200_ERROR -1 |
| 181 | #define ISD200_GOOD 0 |
| 182 | |
| 183 | /* |
| 184 | * Transport return codes |
| 185 | */ |
| 186 | |
| 187 | #define ISD200_TRANSPORT_GOOD 0 /* Transport good, command good */ |
| 188 | #define ISD200_TRANSPORT_FAILED 1 /* Transport good, command failed */ |
| 189 | #define ISD200_TRANSPORT_ERROR 2 /* Transport bad (i.e. device dead) */ |
| 190 | |
| 191 | /* driver action codes */ |
| 192 | #define ACTION_READ_STATUS 0 |
| 193 | #define ACTION_RESET 1 |
| 194 | #define ACTION_REENABLE 2 |
| 195 | #define ACTION_SOFT_RESET 3 |
| 196 | #define ACTION_ENUM 4 |
| 197 | #define ACTION_IDENTIFY 5 |
| 198 | |
| 199 | |
| 200 | /* |
| 201 | * ata_cdb struct |
| 202 | */ |
| 203 | |
| 204 | |
| 205 | union ata_cdb { |
| 206 | struct { |
| 207 | unsigned char SignatureByte0; |
| 208 | unsigned char SignatureByte1; |
| 209 | unsigned char ActionSelect; |
| 210 | unsigned char RegisterSelect; |
| 211 | unsigned char TransferBlockSize; |
| 212 | unsigned char WriteData3F6; |
| 213 | unsigned char WriteData1F1; |
| 214 | unsigned char WriteData1F2; |
| 215 | unsigned char WriteData1F3; |
| 216 | unsigned char WriteData1F4; |
| 217 | unsigned char WriteData1F5; |
| 218 | unsigned char WriteData1F6; |
| 219 | unsigned char WriteData1F7; |
| 220 | unsigned char Reserved[3]; |
| 221 | } generic; |
| 222 | |
| 223 | struct { |
| 224 | unsigned char SignatureByte0; |
| 225 | unsigned char SignatureByte1; |
| 226 | unsigned char ActionSelect; |
| 227 | unsigned char RegisterSelect; |
| 228 | unsigned char TransferBlockSize; |
| 229 | unsigned char AlternateStatusByte; |
| 230 | unsigned char ErrorByte; |
| 231 | unsigned char SectorCountByte; |
| 232 | unsigned char SectorNumberByte; |
| 233 | unsigned char CylinderLowByte; |
| 234 | unsigned char CylinderHighByte; |
| 235 | unsigned char DeviceHeadByte; |
| 236 | unsigned char StatusByte; |
| 237 | unsigned char Reserved[3]; |
| 238 | } read; |
| 239 | |
| 240 | struct { |
| 241 | unsigned char SignatureByte0; |
| 242 | unsigned char SignatureByte1; |
| 243 | unsigned char ActionSelect; |
| 244 | unsigned char RegisterSelect; |
| 245 | unsigned char TransferBlockSize; |
| 246 | unsigned char DeviceControlByte; |
| 247 | unsigned char FeaturesByte; |
| 248 | unsigned char SectorCountByte; |
| 249 | unsigned char SectorNumberByte; |
| 250 | unsigned char CylinderLowByte; |
| 251 | unsigned char CylinderHighByte; |
| 252 | unsigned char DeviceHeadByte; |
| 253 | unsigned char CommandByte; |
| 254 | unsigned char Reserved[3]; |
| 255 | } write; |
| 256 | }; |
| 257 | |
| 258 | |
| 259 | /* |
| 260 | * Inquiry data structure. This is the data returned from the target |
| 261 | * after it receives an inquiry. |
| 262 | * |
| 263 | * This structure may be extended by the number of bytes specified |
| 264 | * in the field AdditionalLength. The defined size constant only |
| 265 | * includes fields through ProductRevisionLevel. |
| 266 | */ |
| 267 | |
| 268 | /* |
| 269 | * DeviceType field |
| 270 | */ |
| 271 | #define DIRECT_ACCESS_DEVICE 0x00 /* disks */ |
| 272 | #define DEVICE_REMOVABLE 0x80 |
| 273 | |
| 274 | struct inquiry_data { |
| 275 | unsigned char DeviceType; |
| 276 | unsigned char DeviceTypeModifier; |
| 277 | unsigned char Versions; |
| 278 | unsigned char Format; |
| 279 | unsigned char AdditionalLength; |
| 280 | unsigned char Reserved[2]; |
| 281 | unsigned char Capability; |
| 282 | unsigned char VendorId[8]; |
| 283 | unsigned char ProductId[16]; |
| 284 | unsigned char ProductRevisionLevel[4]; |
| 285 | unsigned char VendorSpecific[20]; |
| 286 | unsigned char Reserved3[40]; |
| 287 | } __attribute__ ((packed)); |
| 288 | |
| 289 | /* |
| 290 | * INQUIRY data buffer size |
| 291 | */ |
| 292 | |
| 293 | #define INQUIRYDATABUFFERSIZE 36 |
| 294 | |
| 295 | |
| 296 | /* |
| 297 | * ISD200 CONFIG data struct |
| 298 | */ |
| 299 | |
| 300 | #define ATACFG_TIMING 0x0f |
| 301 | #define ATACFG_ATAPI_RESET 0x10 |
| 302 | #define ATACFG_MASTER 0x20 |
| 303 | #define ATACFG_BLOCKSIZE 0xa0 |
| 304 | |
| 305 | #define ATACFGE_LAST_LUN 0x07 |
| 306 | #define ATACFGE_DESC_OVERRIDE 0x08 |
| 307 | #define ATACFGE_STATE_SUSPEND 0x10 |
| 308 | #define ATACFGE_SKIP_BOOT 0x20 |
| 309 | #define ATACFGE_CONF_DESC2 0x40 |
| 310 | #define ATACFGE_INIT_STATUS 0x80 |
| 311 | |
| 312 | #define CFG_CAPABILITY_SRST 0x01 |
| 313 | |
| 314 | struct isd200_config { |
| 315 | unsigned char EventNotification; |
| 316 | unsigned char ExternalClock; |
| 317 | unsigned char ATAInitTimeout; |
| 318 | unsigned char ATAConfig; |
| 319 | unsigned char ATAMajorCommand; |
| 320 | unsigned char ATAMinorCommand; |
| 321 | unsigned char ATAExtraConfig; |
| 322 | unsigned char Capability; |
| 323 | }__attribute__ ((packed)); |
| 324 | |
| 325 | |
| 326 | /* |
| 327 | * ISD200 driver information struct |
| 328 | */ |
| 329 | |
| 330 | struct isd200_info { |
| 331 | struct inquiry_data InquiryData; |
Bartlomiej Zolnierkiewicz | d8881cd | 2009-04-01 21:42:19 +0200 | [diff] [blame] | 332 | u16 *id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | struct isd200_config ConfigData; |
| 334 | unsigned char *RegsBuf; |
| 335 | unsigned char ATARegs[8]; |
| 336 | unsigned char DeviceHead; |
| 337 | unsigned char DeviceFlags; |
| 338 | |
| 339 | /* maximum number of LUNs supported */ |
| 340 | unsigned char MaxLUNs; |
Boaz Harrosh | 64a87b2 | 2008-04-30 11:19:47 +0300 | [diff] [blame] | 341 | unsigned char cmnd[BLK_MAX_CDB]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 342 | struct scsi_cmnd srb; |
Boaz Harrosh | 48c23d3 | 2007-08-22 19:10:45 +0300 | [diff] [blame] | 343 | struct scatterlist sg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | }; |
| 345 | |
| 346 | |
| 347 | /* |
| 348 | * Read Capacity Data - returned in Big Endian format |
| 349 | */ |
| 350 | |
| 351 | struct read_capacity_data { |
| 352 | __be32 LogicalBlockAddress; |
| 353 | __be32 BytesPerBlock; |
| 354 | }; |
| 355 | |
| 356 | /* |
| 357 | * Read Block Limits Data - returned in Big Endian format |
| 358 | * This structure returns the maximum and minimum block |
| 359 | * size for a TAPE device. |
| 360 | */ |
| 361 | |
| 362 | struct read_block_limits { |
| 363 | unsigned char Reserved; |
| 364 | unsigned char BlockMaximumSize[3]; |
| 365 | unsigned char BlockMinimumSize[2]; |
| 366 | }; |
| 367 | |
| 368 | |
| 369 | /* |
| 370 | * Sense Data Format |
| 371 | */ |
| 372 | |
| 373 | #define SENSE_ERRCODE 0x7f |
| 374 | #define SENSE_ERRCODE_VALID 0x80 |
| 375 | #define SENSE_FLAG_SENSE_KEY 0x0f |
| 376 | #define SENSE_FLAG_BAD_LENGTH 0x20 |
| 377 | #define SENSE_FLAG_END_OF_MEDIA 0x40 |
| 378 | #define SENSE_FLAG_FILE_MARK 0x80 |
| 379 | struct sense_data { |
| 380 | unsigned char ErrorCode; |
| 381 | unsigned char SegmentNumber; |
| 382 | unsigned char Flags; |
| 383 | unsigned char Information[4]; |
| 384 | unsigned char AdditionalSenseLength; |
| 385 | unsigned char CommandSpecificInformation[4]; |
| 386 | unsigned char AdditionalSenseCode; |
| 387 | unsigned char AdditionalSenseCodeQualifier; |
| 388 | unsigned char FieldReplaceableUnitCode; |
| 389 | unsigned char SenseKeySpecific[3]; |
| 390 | } __attribute__ ((packed)); |
| 391 | |
| 392 | /* |
| 393 | * Default request sense buffer size |
| 394 | */ |
| 395 | |
| 396 | #define SENSE_BUFFER_SIZE 18 |
| 397 | |
| 398 | /*********************************************************************** |
| 399 | * Helper routines |
| 400 | ***********************************************************************/ |
| 401 | |
| 402 | /************************************************************************** |
| 403 | * isd200_build_sense |
| 404 | * |
| 405 | * Builds an artificial sense buffer to report the results of a |
| 406 | * failed command. |
| 407 | * |
| 408 | * RETURNS: |
| 409 | * void |
| 410 | */ |
| 411 | static void isd200_build_sense(struct us_data *us, struct scsi_cmnd *srb) |
| 412 | { |
| 413 | struct isd200_info *info = (struct isd200_info *)us->extra; |
| 414 | struct sense_data *buf = (struct sense_data *) &srb->sense_buffer[0]; |
Bartlomiej Zolnierkiewicz | c74e809 | 2007-10-27 18:01:04 +0200 | [diff] [blame] | 415 | unsigned char error = info->ATARegs[ATA_REG_ERROR_OFFSET]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | |
| 417 | if(error & ATA_ERROR_MEDIA_CHANGE) { |
| 418 | buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID; |
| 419 | buf->AdditionalSenseLength = 0xb; |
| 420 | buf->Flags = UNIT_ATTENTION; |
| 421 | buf->AdditionalSenseCode = 0; |
| 422 | buf->AdditionalSenseCodeQualifier = 0; |
Bartlomiej Zolnierkiewicz | fcd3ec6 | 2009-04-01 21:42:25 +0200 | [diff] [blame^] | 423 | } else if (error & ATA_MCR) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID; |
| 425 | buf->AdditionalSenseLength = 0xb; |
| 426 | buf->Flags = UNIT_ATTENTION; |
| 427 | buf->AdditionalSenseCode = 0; |
| 428 | buf->AdditionalSenseCodeQualifier = 0; |
Bartlomiej Zolnierkiewicz | fcd3ec6 | 2009-04-01 21:42:25 +0200 | [diff] [blame^] | 429 | } else if (error & ATA_TRK0NF) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 430 | buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID; |
| 431 | buf->AdditionalSenseLength = 0xb; |
| 432 | buf->Flags = NOT_READY; |
| 433 | buf->AdditionalSenseCode = 0; |
| 434 | buf->AdditionalSenseCodeQualifier = 0; |
Bartlomiej Zolnierkiewicz | fcd3ec6 | 2009-04-01 21:42:25 +0200 | [diff] [blame^] | 435 | } else if (error & ATA_UNC) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 436 | buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID; |
| 437 | buf->AdditionalSenseLength = 0xb; |
| 438 | buf->Flags = DATA_PROTECT; |
| 439 | buf->AdditionalSenseCode = 0; |
| 440 | buf->AdditionalSenseCodeQualifier = 0; |
| 441 | } else { |
| 442 | buf->ErrorCode = 0; |
| 443 | buf->AdditionalSenseLength = 0; |
| 444 | buf->Flags = 0; |
| 445 | buf->AdditionalSenseCode = 0; |
| 446 | buf->AdditionalSenseCodeQualifier = 0; |
| 447 | } |
| 448 | } |
| 449 | |
| 450 | |
| 451 | /*********************************************************************** |
| 452 | * Transport routines |
| 453 | ***********************************************************************/ |
| 454 | |
Boaz Harrosh | 48c23d3 | 2007-08-22 19:10:45 +0300 | [diff] [blame] | 455 | /************************************************************************** |
| 456 | * isd200_set_srb(), isd200_srb_set_bufflen() |
| 457 | * |
| 458 | * Two helpers to facilitate in initialization of scsi_cmnd structure |
| 459 | * Will need to change when struct scsi_cmnd changes |
| 460 | */ |
| 461 | static void isd200_set_srb(struct isd200_info *info, |
| 462 | enum dma_data_direction dir, void* buff, unsigned bufflen) |
| 463 | { |
| 464 | struct scsi_cmnd *srb = &info->srb; |
| 465 | |
| 466 | if (buff) |
| 467 | sg_init_one(&info->sg, buff, bufflen); |
| 468 | |
| 469 | srb->sc_data_direction = dir; |
Boaz Harrosh | 30b0c37 | 2007-12-13 13:47:40 +0200 | [diff] [blame] | 470 | srb->sdb.table.sgl = buff ? &info->sg : NULL; |
| 471 | srb->sdb.length = bufflen; |
| 472 | srb->sdb.table.nents = buff ? 1 : 0; |
Boaz Harrosh | 48c23d3 | 2007-08-22 19:10:45 +0300 | [diff] [blame] | 473 | } |
| 474 | |
| 475 | static void isd200_srb_set_bufflen(struct scsi_cmnd *srb, unsigned bufflen) |
| 476 | { |
Boaz Harrosh | 30b0c37 | 2007-12-13 13:47:40 +0200 | [diff] [blame] | 477 | srb->sdb.length = bufflen; |
Boaz Harrosh | 48c23d3 | 2007-08-22 19:10:45 +0300 | [diff] [blame] | 478 | } |
| 479 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 480 | |
| 481 | /************************************************************************** |
| 482 | * isd200_action |
| 483 | * |
| 484 | * Routine for sending commands to the isd200 |
| 485 | * |
| 486 | * RETURNS: |
| 487 | * ISD status code |
| 488 | */ |
| 489 | static int isd200_action( struct us_data *us, int action, |
| 490 | void* pointer, int value ) |
| 491 | { |
| 492 | union ata_cdb ata; |
| 493 | struct scsi_device srb_dev; |
| 494 | struct isd200_info *info = (struct isd200_info *)us->extra; |
| 495 | struct scsi_cmnd *srb = &info->srb; |
| 496 | int status; |
| 497 | |
| 498 | memset(&ata, 0, sizeof(ata)); |
| 499 | memset(&srb_dev, 0, sizeof(srb_dev)); |
Boaz Harrosh | 64a87b2 | 2008-04-30 11:19:47 +0300 | [diff] [blame] | 500 | srb->cmnd = info->cmnd; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 501 | srb->device = &srb_dev; |
| 502 | ++srb->serial_number; |
| 503 | |
| 504 | ata.generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; |
| 505 | ata.generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; |
| 506 | ata.generic.TransferBlockSize = 1; |
| 507 | |
| 508 | switch ( action ) { |
| 509 | case ACTION_READ_STATUS: |
| 510 | US_DEBUGP(" isd200_action(READ_STATUS)\n"); |
| 511 | ata.generic.ActionSelect = ACTION_SELECT_0|ACTION_SELECT_2; |
| 512 | ata.generic.RegisterSelect = |
| 513 | REG_CYLINDER_LOW | REG_CYLINDER_HIGH | |
| 514 | REG_STATUS | REG_ERROR; |
Boaz Harrosh | 48c23d3 | 2007-08-22 19:10:45 +0300 | [diff] [blame] | 515 | isd200_set_srb(info, DMA_FROM_DEVICE, pointer, value); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | break; |
| 517 | |
| 518 | case ACTION_ENUM: |
| 519 | US_DEBUGP(" isd200_action(ENUM,0x%02x)\n",value); |
| 520 | ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_2| |
| 521 | ACTION_SELECT_3|ACTION_SELECT_4| |
| 522 | ACTION_SELECT_5; |
| 523 | ata.generic.RegisterSelect = REG_DEVICE_HEAD; |
| 524 | ata.write.DeviceHeadByte = value; |
Boaz Harrosh | 48c23d3 | 2007-08-22 19:10:45 +0300 | [diff] [blame] | 525 | isd200_set_srb(info, DMA_NONE, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | break; |
| 527 | |
| 528 | case ACTION_RESET: |
| 529 | US_DEBUGP(" isd200_action(RESET)\n"); |
| 530 | ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_2| |
| 531 | ACTION_SELECT_3|ACTION_SELECT_4; |
| 532 | ata.generic.RegisterSelect = REG_DEVICE_CONTROL; |
| 533 | ata.write.DeviceControlByte = ATA_DC_RESET_CONTROLLER; |
Boaz Harrosh | 48c23d3 | 2007-08-22 19:10:45 +0300 | [diff] [blame] | 534 | isd200_set_srb(info, DMA_NONE, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | break; |
| 536 | |
| 537 | case ACTION_REENABLE: |
| 538 | US_DEBUGP(" isd200_action(REENABLE)\n"); |
| 539 | ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_2| |
| 540 | ACTION_SELECT_3|ACTION_SELECT_4; |
| 541 | ata.generic.RegisterSelect = REG_DEVICE_CONTROL; |
| 542 | ata.write.DeviceControlByte = ATA_DC_REENABLE_CONTROLLER; |
Boaz Harrosh | 48c23d3 | 2007-08-22 19:10:45 +0300 | [diff] [blame] | 543 | isd200_set_srb(info, DMA_NONE, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 544 | break; |
| 545 | |
| 546 | case ACTION_SOFT_RESET: |
| 547 | US_DEBUGP(" isd200_action(SOFT_RESET)\n"); |
| 548 | ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_5; |
| 549 | ata.generic.RegisterSelect = REG_DEVICE_HEAD | REG_COMMAND; |
| 550 | ata.write.DeviceHeadByte = info->DeviceHead; |
Bartlomiej Zolnierkiewicz | f08f31f | 2009-04-01 21:42:24 +0200 | [diff] [blame] | 551 | ata.write.CommandByte = ATA_CMD_DEV_RESET; |
Boaz Harrosh | 48c23d3 | 2007-08-22 19:10:45 +0300 | [diff] [blame] | 552 | isd200_set_srb(info, DMA_NONE, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 553 | break; |
| 554 | |
| 555 | case ACTION_IDENTIFY: |
| 556 | US_DEBUGP(" isd200_action(IDENTIFY)\n"); |
| 557 | ata.generic.RegisterSelect = REG_COMMAND; |
Bartlomiej Zolnierkiewicz | f08f31f | 2009-04-01 21:42:24 +0200 | [diff] [blame] | 558 | ata.write.CommandByte = ATA_CMD_ID_ATA; |
Boaz Harrosh | 48c23d3 | 2007-08-22 19:10:45 +0300 | [diff] [blame] | 559 | isd200_set_srb(info, DMA_FROM_DEVICE, info->id, |
Bartlomiej Zolnierkiewicz | d8881cd | 2009-04-01 21:42:19 +0200 | [diff] [blame] | 560 | ATA_ID_WORDS * 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 561 | break; |
| 562 | |
| 563 | default: |
| 564 | US_DEBUGP("Error: Undefined action %d\n",action); |
Boaz Harrosh | 48c23d3 | 2007-08-22 19:10:45 +0300 | [diff] [blame] | 565 | return ISD200_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 566 | } |
| 567 | |
| 568 | memcpy(srb->cmnd, &ata, sizeof(ata.generic)); |
| 569 | srb->cmd_len = sizeof(ata.generic); |
| 570 | status = usb_stor_Bulk_transport(srb, us); |
| 571 | if (status == USB_STOR_TRANSPORT_GOOD) |
| 572 | status = ISD200_GOOD; |
| 573 | else { |
| 574 | US_DEBUGP(" isd200_action(0x%02x) error: %d\n",action,status); |
| 575 | status = ISD200_ERROR; |
| 576 | /* need to reset device here */ |
| 577 | } |
| 578 | |
| 579 | return status; |
| 580 | } |
| 581 | |
| 582 | /************************************************************************** |
| 583 | * isd200_read_regs |
| 584 | * |
| 585 | * Read ATA Registers |
| 586 | * |
| 587 | * RETURNS: |
| 588 | * ISD status code |
| 589 | */ |
| 590 | static int isd200_read_regs( struct us_data *us ) |
| 591 | { |
| 592 | struct isd200_info *info = (struct isd200_info *)us->extra; |
| 593 | int retStatus = ISD200_GOOD; |
| 594 | int transferStatus; |
| 595 | |
| 596 | US_DEBUGP("Entering isd200_IssueATAReadRegs\n"); |
| 597 | |
| 598 | transferStatus = isd200_action( us, ACTION_READ_STATUS, |
| 599 | info->RegsBuf, sizeof(info->ATARegs) ); |
| 600 | if (transferStatus != ISD200_TRANSPORT_GOOD) { |
| 601 | US_DEBUGP(" Error reading ATA registers\n"); |
| 602 | retStatus = ISD200_ERROR; |
| 603 | } else { |
| 604 | memcpy(info->ATARegs, info->RegsBuf, sizeof(info->ATARegs)); |
Bartlomiej Zolnierkiewicz | c74e809 | 2007-10-27 18:01:04 +0200 | [diff] [blame] | 605 | US_DEBUGP(" Got ATA Register[ATA_REG_ERROR_OFFSET] = 0x%x\n", |
| 606 | info->ATARegs[ATA_REG_ERROR_OFFSET]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 607 | } |
| 608 | |
| 609 | return retStatus; |
| 610 | } |
| 611 | |
| 612 | |
| 613 | /************************************************************************** |
| 614 | * Invoke the transport and basic error-handling/recovery methods |
| 615 | * |
| 616 | * This is used by the protocol layers to actually send the message to |
| 617 | * the device and receive the response. |
| 618 | */ |
| 619 | static void isd200_invoke_transport( struct us_data *us, |
| 620 | struct scsi_cmnd *srb, |
| 621 | union ata_cdb *ataCdb ) |
| 622 | { |
| 623 | int need_auto_sense = 0; |
| 624 | int transferStatus; |
| 625 | int result; |
| 626 | |
| 627 | /* send the command to the transport layer */ |
| 628 | memcpy(srb->cmnd, ataCdb, sizeof(ataCdb->generic)); |
| 629 | srb->cmd_len = sizeof(ataCdb->generic); |
| 630 | transferStatus = usb_stor_Bulk_transport(srb, us); |
| 631 | |
| 632 | /* if the command gets aborted by the higher layers, we need to |
| 633 | * short-circuit all other processing |
| 634 | */ |
Alan Stern | 7e4d6c3 | 2008-05-01 15:35:18 -0400 | [diff] [blame] | 635 | if (test_bit(US_FLIDX_TIMED_OUT, &us->dflags)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 636 | US_DEBUGP("-- command was aborted\n"); |
| 637 | goto Handle_Abort; |
| 638 | } |
| 639 | |
| 640 | switch (transferStatus) { |
| 641 | |
| 642 | case USB_STOR_TRANSPORT_GOOD: |
| 643 | /* Indicate a good result */ |
| 644 | srb->result = SAM_STAT_GOOD; |
| 645 | break; |
| 646 | |
| 647 | case USB_STOR_TRANSPORT_NO_SENSE: |
| 648 | US_DEBUGP("-- transport indicates protocol failure\n"); |
| 649 | srb->result = SAM_STAT_CHECK_CONDITION; |
| 650 | return; |
| 651 | |
| 652 | case USB_STOR_TRANSPORT_FAILED: |
| 653 | US_DEBUGP("-- transport indicates command failure\n"); |
| 654 | need_auto_sense = 1; |
| 655 | break; |
| 656 | |
| 657 | case USB_STOR_TRANSPORT_ERROR: |
| 658 | US_DEBUGP("-- transport indicates transport error\n"); |
| 659 | srb->result = DID_ERROR << 16; |
| 660 | /* Need reset here */ |
| 661 | return; |
| 662 | |
| 663 | default: |
| 664 | US_DEBUGP("-- transport indicates unknown error\n"); |
| 665 | srb->result = DID_ERROR << 16; |
| 666 | /* Need reset here */ |
| 667 | return; |
| 668 | } |
| 669 | |
Boaz Harrosh | 48c23d3 | 2007-08-22 19:10:45 +0300 | [diff] [blame] | 670 | if ((scsi_get_resid(srb) > 0) && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 671 | !((srb->cmnd[0] == REQUEST_SENSE) || |
| 672 | (srb->cmnd[0] == INQUIRY) || |
| 673 | (srb->cmnd[0] == MODE_SENSE) || |
| 674 | (srb->cmnd[0] == LOG_SENSE) || |
| 675 | (srb->cmnd[0] == MODE_SENSE_10))) { |
| 676 | US_DEBUGP("-- unexpectedly short transfer\n"); |
| 677 | need_auto_sense = 1; |
| 678 | } |
| 679 | |
| 680 | if (need_auto_sense) { |
| 681 | result = isd200_read_regs(us); |
Alan Stern | 7e4d6c3 | 2008-05-01 15:35:18 -0400 | [diff] [blame] | 682 | if (test_bit(US_FLIDX_TIMED_OUT, &us->dflags)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 683 | US_DEBUGP("-- auto-sense aborted\n"); |
| 684 | goto Handle_Abort; |
| 685 | } |
| 686 | if (result == ISD200_GOOD) { |
| 687 | isd200_build_sense(us, srb); |
| 688 | srb->result = SAM_STAT_CHECK_CONDITION; |
| 689 | |
| 690 | /* If things are really okay, then let's show that */ |
| 691 | if ((srb->sense_buffer[2] & 0xf) == 0x0) |
| 692 | srb->result = SAM_STAT_GOOD; |
| 693 | } else { |
| 694 | srb->result = DID_ERROR << 16; |
| 695 | /* Need reset here */ |
| 696 | } |
| 697 | } |
| 698 | |
| 699 | /* Regardless of auto-sense, if we _know_ we have an error |
| 700 | * condition, show that in the result code |
| 701 | */ |
| 702 | if (transferStatus == USB_STOR_TRANSPORT_FAILED) |
| 703 | srb->result = SAM_STAT_CHECK_CONDITION; |
| 704 | return; |
| 705 | |
| 706 | /* abort processing: the bulk-only transport requires a reset |
| 707 | * following an abort */ |
| 708 | Handle_Abort: |
| 709 | srb->result = DID_ABORT << 16; |
| 710 | |
| 711 | /* permit the reset transfer to take place */ |
Alan Stern | 7e4d6c3 | 2008-05-01 15:35:18 -0400 | [diff] [blame] | 712 | clear_bit(US_FLIDX_ABORTING, &us->dflags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 713 | /* Need reset here */ |
| 714 | } |
| 715 | |
| 716 | #ifdef CONFIG_USB_STORAGE_DEBUG |
| 717 | static void isd200_log_config( struct isd200_info* info ) |
| 718 | { |
| 719 | US_DEBUGP(" Event Notification: 0x%x\n", |
| 720 | info->ConfigData.EventNotification); |
| 721 | US_DEBUGP(" External Clock: 0x%x\n", |
| 722 | info->ConfigData.ExternalClock); |
| 723 | US_DEBUGP(" ATA Init Timeout: 0x%x\n", |
| 724 | info->ConfigData.ATAInitTimeout); |
| 725 | US_DEBUGP(" ATAPI Command Block Size: 0x%x\n", |
| 726 | (info->ConfigData.ATAConfig & ATACFG_BLOCKSIZE) >> 6); |
| 727 | US_DEBUGP(" Master/Slave Selection: 0x%x\n", |
| 728 | info->ConfigData.ATAConfig & ATACFG_MASTER); |
| 729 | US_DEBUGP(" ATAPI Reset: 0x%x\n", |
| 730 | info->ConfigData.ATAConfig & ATACFG_ATAPI_RESET); |
| 731 | US_DEBUGP(" ATA Timing: 0x%x\n", |
| 732 | info->ConfigData.ATAConfig & ATACFG_TIMING); |
| 733 | US_DEBUGP(" ATA Major Command: 0x%x\n", |
| 734 | info->ConfigData.ATAMajorCommand); |
| 735 | US_DEBUGP(" ATA Minor Command: 0x%x\n", |
| 736 | info->ConfigData.ATAMinorCommand); |
| 737 | US_DEBUGP(" Init Status: 0x%x\n", |
| 738 | info->ConfigData.ATAExtraConfig & ATACFGE_INIT_STATUS); |
| 739 | US_DEBUGP(" Config Descriptor 2: 0x%x\n", |
| 740 | info->ConfigData.ATAExtraConfig & ATACFGE_CONF_DESC2); |
| 741 | US_DEBUGP(" Skip Device Boot: 0x%x\n", |
| 742 | info->ConfigData.ATAExtraConfig & ATACFGE_SKIP_BOOT); |
| 743 | US_DEBUGP(" ATA 3 State Supsend: 0x%x\n", |
| 744 | info->ConfigData.ATAExtraConfig & ATACFGE_STATE_SUSPEND); |
| 745 | US_DEBUGP(" Descriptor Override: 0x%x\n", |
| 746 | info->ConfigData.ATAExtraConfig & ATACFGE_DESC_OVERRIDE); |
| 747 | US_DEBUGP(" Last LUN Identifier: 0x%x\n", |
| 748 | info->ConfigData.ATAExtraConfig & ATACFGE_LAST_LUN); |
| 749 | US_DEBUGP(" SRST Enable: 0x%x\n", |
| 750 | info->ConfigData.ATAExtraConfig & CFG_CAPABILITY_SRST); |
| 751 | } |
| 752 | #endif |
| 753 | |
| 754 | /************************************************************************** |
| 755 | * isd200_write_config |
| 756 | * |
| 757 | * Write the ISD200 Configuration data |
| 758 | * |
| 759 | * RETURNS: |
| 760 | * ISD status code |
| 761 | */ |
| 762 | static int isd200_write_config( struct us_data *us ) |
| 763 | { |
| 764 | struct isd200_info *info = (struct isd200_info *)us->extra; |
| 765 | int retStatus = ISD200_GOOD; |
| 766 | int result; |
| 767 | |
| 768 | #ifdef CONFIG_USB_STORAGE_DEBUG |
| 769 | US_DEBUGP("Entering isd200_write_config\n"); |
| 770 | US_DEBUGP(" Writing the following ISD200 Config Data:\n"); |
| 771 | isd200_log_config(info); |
| 772 | #endif |
| 773 | |
| 774 | /* let's send the command via the control pipe */ |
| 775 | result = usb_stor_ctrl_transfer( |
| 776 | us, |
| 777 | us->send_ctrl_pipe, |
| 778 | 0x01, |
| 779 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, |
| 780 | 0x0000, |
| 781 | 0x0002, |
| 782 | (void *) &info->ConfigData, |
| 783 | sizeof(info->ConfigData)); |
| 784 | |
| 785 | if (result >= 0) { |
| 786 | US_DEBUGP(" ISD200 Config Data was written successfully\n"); |
| 787 | } else { |
| 788 | US_DEBUGP(" Request to write ISD200 Config Data failed!\n"); |
| 789 | retStatus = ISD200_ERROR; |
| 790 | } |
| 791 | |
| 792 | US_DEBUGP("Leaving isd200_write_config %08X\n", retStatus); |
| 793 | return retStatus; |
| 794 | } |
| 795 | |
| 796 | |
| 797 | /************************************************************************** |
| 798 | * isd200_read_config |
| 799 | * |
| 800 | * Reads the ISD200 Configuration data |
| 801 | * |
| 802 | * RETURNS: |
| 803 | * ISD status code |
| 804 | */ |
| 805 | static int isd200_read_config( struct us_data *us ) |
| 806 | { |
| 807 | struct isd200_info *info = (struct isd200_info *)us->extra; |
| 808 | int retStatus = ISD200_GOOD; |
| 809 | int result; |
| 810 | |
| 811 | US_DEBUGP("Entering isd200_read_config\n"); |
| 812 | |
| 813 | /* read the configuration information from ISD200. Use this to */ |
| 814 | /* determine what the special ATA CDB bytes are. */ |
| 815 | |
| 816 | result = usb_stor_ctrl_transfer( |
| 817 | us, |
| 818 | us->recv_ctrl_pipe, |
| 819 | 0x02, |
| 820 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, |
| 821 | 0x0000, |
| 822 | 0x0002, |
| 823 | (void *) &info->ConfigData, |
| 824 | sizeof(info->ConfigData)); |
| 825 | |
| 826 | |
| 827 | if (result >= 0) { |
| 828 | US_DEBUGP(" Retrieved the following ISD200 Config Data:\n"); |
| 829 | #ifdef CONFIG_USB_STORAGE_DEBUG |
| 830 | isd200_log_config(info); |
| 831 | #endif |
| 832 | } else { |
| 833 | US_DEBUGP(" Request to get ISD200 Config Data failed!\n"); |
| 834 | retStatus = ISD200_ERROR; |
| 835 | } |
| 836 | |
| 837 | US_DEBUGP("Leaving isd200_read_config %08X\n", retStatus); |
| 838 | return retStatus; |
| 839 | } |
| 840 | |
| 841 | |
| 842 | /************************************************************************** |
| 843 | * isd200_atapi_soft_reset |
| 844 | * |
| 845 | * Perform an Atapi Soft Reset on the device |
| 846 | * |
| 847 | * RETURNS: |
| 848 | * NT status code |
| 849 | */ |
| 850 | static int isd200_atapi_soft_reset( struct us_data *us ) |
| 851 | { |
| 852 | int retStatus = ISD200_GOOD; |
| 853 | int transferStatus; |
| 854 | |
| 855 | US_DEBUGP("Entering isd200_atapi_soft_reset\n"); |
| 856 | |
| 857 | transferStatus = isd200_action( us, ACTION_SOFT_RESET, NULL, 0 ); |
| 858 | if (transferStatus != ISD200_TRANSPORT_GOOD) { |
| 859 | US_DEBUGP(" Error issuing Atapi Soft Reset\n"); |
| 860 | retStatus = ISD200_ERROR; |
| 861 | } |
| 862 | |
| 863 | US_DEBUGP("Leaving isd200_atapi_soft_reset %08X\n", retStatus); |
| 864 | return retStatus; |
| 865 | } |
| 866 | |
| 867 | |
| 868 | /************************************************************************** |
| 869 | * isd200_srst |
| 870 | * |
| 871 | * Perform an SRST on the device |
| 872 | * |
| 873 | * RETURNS: |
| 874 | * ISD status code |
| 875 | */ |
| 876 | static int isd200_srst( struct us_data *us ) |
| 877 | { |
| 878 | int retStatus = ISD200_GOOD; |
| 879 | int transferStatus; |
| 880 | |
| 881 | US_DEBUGP("Entering isd200_SRST\n"); |
| 882 | |
| 883 | transferStatus = isd200_action( us, ACTION_RESET, NULL, 0 ); |
| 884 | |
| 885 | /* check to see if this request failed */ |
| 886 | if (transferStatus != ISD200_TRANSPORT_GOOD) { |
| 887 | US_DEBUGP(" Error issuing SRST\n"); |
| 888 | retStatus = ISD200_ERROR; |
| 889 | } else { |
| 890 | /* delay 10ms to give the drive a chance to see it */ |
| 891 | msleep(10); |
| 892 | |
| 893 | transferStatus = isd200_action( us, ACTION_REENABLE, NULL, 0 ); |
| 894 | if (transferStatus != ISD200_TRANSPORT_GOOD) { |
| 895 | US_DEBUGP(" Error taking drive out of reset\n"); |
| 896 | retStatus = ISD200_ERROR; |
| 897 | } else { |
| 898 | /* delay 50ms to give the drive a chance to recover after SRST */ |
| 899 | msleep(50); |
| 900 | } |
| 901 | } |
| 902 | |
| 903 | US_DEBUGP("Leaving isd200_srst %08X\n", retStatus); |
| 904 | return retStatus; |
| 905 | } |
| 906 | |
| 907 | |
| 908 | /************************************************************************** |
| 909 | * isd200_try_enum |
| 910 | * |
| 911 | * Helper function for isd200_manual_enum(). Does ENUM and READ_STATUS |
| 912 | * and tries to analyze the status registers |
| 913 | * |
| 914 | * RETURNS: |
| 915 | * ISD status code |
| 916 | */ |
| 917 | static int isd200_try_enum(struct us_data *us, unsigned char master_slave, |
| 918 | int detect ) |
| 919 | { |
| 920 | int status = ISD200_GOOD; |
| 921 | unsigned long endTime; |
| 922 | struct isd200_info *info = (struct isd200_info *)us->extra; |
| 923 | unsigned char *regs = info->RegsBuf; |
| 924 | int recheckAsMaster = 0; |
| 925 | |
| 926 | if ( detect ) |
| 927 | endTime = jiffies + ISD200_ENUM_DETECT_TIMEOUT * HZ; |
| 928 | else |
| 929 | endTime = jiffies + ISD200_ENUM_BSY_TIMEOUT * HZ; |
| 930 | |
| 931 | /* loop until we detect !BSY or timeout */ |
| 932 | while(1) { |
| 933 | #ifdef CONFIG_USB_STORAGE_DEBUG |
| 934 | char* mstr = master_slave == ATA_ADDRESS_DEVHEAD_STD ? |
| 935 | "Master" : "Slave"; |
| 936 | #endif |
| 937 | |
| 938 | status = isd200_action( us, ACTION_ENUM, NULL, master_slave ); |
| 939 | if ( status != ISD200_GOOD ) |
| 940 | break; |
| 941 | |
| 942 | status = isd200_action( us, ACTION_READ_STATUS, |
| 943 | regs, 8 ); |
| 944 | if ( status != ISD200_GOOD ) |
| 945 | break; |
| 946 | |
| 947 | if (!detect) { |
Bartlomiej Zolnierkiewicz | fcd3ec6 | 2009-04-01 21:42:25 +0200 | [diff] [blame^] | 948 | if (regs[ATA_REG_STATUS_OFFSET] & ATA_BUSY) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 949 | US_DEBUGP(" %s status is still BSY, try again...\n",mstr); |
| 950 | } else { |
| 951 | US_DEBUGP(" %s status !BSY, continue with next operation\n",mstr); |
| 952 | break; |
| 953 | } |
| 954 | } |
Bartlomiej Zolnierkiewicz | fcd3ec6 | 2009-04-01 21:42:25 +0200 | [diff] [blame^] | 955 | /* check for ATA_BUSY and */ |
| 956 | /* ATA_DF (workaround ATA Zip drive) and */ |
| 957 | /* ATA_ERR (workaround for Archos CD-ROM) */ |
Bartlomiej Zolnierkiewicz | c74e809 | 2007-10-27 18:01:04 +0200 | [diff] [blame] | 958 | else if (regs[ATA_REG_STATUS_OFFSET] & |
Bartlomiej Zolnierkiewicz | fcd3ec6 | 2009-04-01 21:42:25 +0200 | [diff] [blame^] | 959 | (ATA_BUSY | ATA_DF | ATA_ERR)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 960 | US_DEBUGP(" Status indicates it is not ready, try again...\n"); |
| 961 | } |
| 962 | /* check for DRDY, ATA devices set DRDY after SRST */ |
Bartlomiej Zolnierkiewicz | fcd3ec6 | 2009-04-01 21:42:25 +0200 | [diff] [blame^] | 963 | else if (regs[ATA_REG_STATUS_OFFSET] & ATA_DRDY) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 964 | US_DEBUGP(" Identified ATA device\n"); |
| 965 | info->DeviceFlags |= DF_ATA_DEVICE; |
| 966 | info->DeviceHead = master_slave; |
| 967 | break; |
| 968 | } |
| 969 | /* check Cylinder High/Low to |
| 970 | determine if it is an ATAPI device |
| 971 | */ |
Bartlomiej Zolnierkiewicz | c74e809 | 2007-10-27 18:01:04 +0200 | [diff] [blame] | 972 | else if (regs[ATA_REG_HCYL_OFFSET] == 0xEB && |
| 973 | regs[ATA_REG_LCYL_OFFSET] == 0x14) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 974 | /* It seems that the RICOH |
| 975 | MP6200A CD/RW drive will |
| 976 | report itself okay as a |
| 977 | slave when it is really a |
| 978 | master. So this check again |
| 979 | as a master device just to |
| 980 | make sure it doesn't report |
| 981 | itself okay as a master also |
| 982 | */ |
| 983 | if ((master_slave & ATA_ADDRESS_DEVHEAD_SLAVE) && |
| 984 | !recheckAsMaster) { |
| 985 | US_DEBUGP(" Identified ATAPI device as slave. Rechecking again as master\n"); |
| 986 | recheckAsMaster = 1; |
| 987 | master_slave = ATA_ADDRESS_DEVHEAD_STD; |
| 988 | } else { |
| 989 | US_DEBUGP(" Identified ATAPI device\n"); |
| 990 | info->DeviceHead = master_slave; |
| 991 | |
| 992 | status = isd200_atapi_soft_reset(us); |
| 993 | break; |
| 994 | } |
| 995 | } else { |
| 996 | US_DEBUGP(" Not ATA, not ATAPI. Weird.\n"); |
| 997 | break; |
| 998 | } |
| 999 | |
| 1000 | /* check for timeout on this request */ |
| 1001 | if (time_after_eq(jiffies, endTime)) { |
| 1002 | if (!detect) |
| 1003 | US_DEBUGP(" BSY check timeout, just continue with next operation...\n"); |
| 1004 | else |
| 1005 | US_DEBUGP(" Device detect timeout!\n"); |
| 1006 | break; |
| 1007 | } |
| 1008 | } |
| 1009 | |
| 1010 | return status; |
| 1011 | } |
| 1012 | |
| 1013 | /************************************************************************** |
| 1014 | * isd200_manual_enum |
| 1015 | * |
| 1016 | * Determines if the drive attached is an ATA or ATAPI and if it is a |
| 1017 | * master or slave. |
| 1018 | * |
| 1019 | * RETURNS: |
| 1020 | * ISD status code |
| 1021 | */ |
| 1022 | static int isd200_manual_enum(struct us_data *us) |
| 1023 | { |
| 1024 | struct isd200_info *info = (struct isd200_info *)us->extra; |
| 1025 | int retStatus = ISD200_GOOD; |
| 1026 | |
| 1027 | US_DEBUGP("Entering isd200_manual_enum\n"); |
| 1028 | |
| 1029 | retStatus = isd200_read_config(us); |
| 1030 | if (retStatus == ISD200_GOOD) { |
| 1031 | int isslave; |
| 1032 | /* master or slave? */ |
| 1033 | retStatus = isd200_try_enum( us, ATA_ADDRESS_DEVHEAD_STD, 0); |
| 1034 | if (retStatus == ISD200_GOOD) |
| 1035 | retStatus = isd200_try_enum( us, ATA_ADDRESS_DEVHEAD_SLAVE, 0); |
| 1036 | |
| 1037 | if (retStatus == ISD200_GOOD) { |
| 1038 | retStatus = isd200_srst(us); |
| 1039 | if (retStatus == ISD200_GOOD) |
| 1040 | /* ata or atapi? */ |
| 1041 | retStatus = isd200_try_enum( us, ATA_ADDRESS_DEVHEAD_STD, 1); |
| 1042 | } |
| 1043 | |
| 1044 | isslave = (info->DeviceHead & ATA_ADDRESS_DEVHEAD_SLAVE) ? 1 : 0; |
| 1045 | if (!(info->ConfigData.ATAConfig & ATACFG_MASTER)) { |
| 1046 | US_DEBUGP(" Setting Master/Slave selection to %d\n", isslave); |
| 1047 | info->ConfigData.ATAConfig &= 0x3f; |
| 1048 | info->ConfigData.ATAConfig |= (isslave<<6); |
| 1049 | retStatus = isd200_write_config(us); |
| 1050 | } |
| 1051 | } |
| 1052 | |
| 1053 | US_DEBUGP("Leaving isd200_manual_enum %08X\n", retStatus); |
| 1054 | return(retStatus); |
| 1055 | } |
| 1056 | |
Bartlomiej Zolnierkiewicz | d8881cd | 2009-04-01 21:42:19 +0200 | [diff] [blame] | 1057 | static void isd200_fix_driveid(u16 *id) |
Alan Cox | 3794ade | 2007-10-15 15:08:11 +0100 | [diff] [blame] | 1058 | { |
| 1059 | #ifndef __LITTLE_ENDIAN |
| 1060 | # ifdef __BIG_ENDIAN |
| 1061 | int i; |
Alan Cox | 3794ade | 2007-10-15 15:08:11 +0100 | [diff] [blame] | 1062 | |
Bartlomiej Zolnierkiewicz | d8881cd | 2009-04-01 21:42:19 +0200 | [diff] [blame] | 1063 | for (i = 0; i < ATA_ID_WORDS; i++) |
| 1064 | id[i] = __le16_to_cpu(id[i]); |
Alan Cox | 3794ade | 2007-10-15 15:08:11 +0100 | [diff] [blame] | 1065 | # else |
| 1066 | # error "Please fix <asm/byteorder.h>" |
| 1067 | # endif |
| 1068 | #endif |
| 1069 | } |
| 1070 | |
Bartlomiej Zolnierkiewicz | d8881cd | 2009-04-01 21:42:19 +0200 | [diff] [blame] | 1071 | static void isd200_dump_driveid(u16 *id) |
| 1072 | { |
| 1073 | US_DEBUGP(" Identify Data Structure:\n"); |
| 1074 | US_DEBUGP(" config = 0x%x\n", id[ATA_ID_CONFIG]); |
| 1075 | US_DEBUGP(" cyls = 0x%x\n", id[ATA_ID_CYLS]); |
| 1076 | US_DEBUGP(" heads = 0x%x\n", id[ATA_ID_HEADS]); |
| 1077 | US_DEBUGP(" track_bytes = 0x%x\n", id[4]); |
| 1078 | US_DEBUGP(" sector_bytes = 0x%x\n", id[5]); |
| 1079 | US_DEBUGP(" sectors = 0x%x\n", id[ATA_ID_SECTORS]); |
| 1080 | US_DEBUGP(" serial_no[0] = 0x%x\n", *(char *)&id[ATA_ID_SERNO]); |
| 1081 | US_DEBUGP(" buf_type = 0x%x\n", id[20]); |
| 1082 | US_DEBUGP(" buf_size = 0x%x\n", id[ATA_ID_BUF_SIZE]); |
| 1083 | US_DEBUGP(" ecc_bytes = 0x%x\n", id[22]); |
| 1084 | US_DEBUGP(" fw_rev[0] = 0x%x\n", *(char *)&id[ATA_ID_FW_REV]); |
| 1085 | US_DEBUGP(" model[0] = 0x%x\n", *(char *)&id[ATA_ID_PROD]); |
| 1086 | US_DEBUGP(" max_multsect = 0x%x\n", id[ATA_ID_MAX_MULTSECT] & 0xff); |
| 1087 | US_DEBUGP(" dword_io = 0x%x\n", id[ATA_ID_DWORD_IO]); |
| 1088 | US_DEBUGP(" capability = 0x%x\n", id[ATA_ID_CAPABILITY] >> 8); |
| 1089 | US_DEBUGP(" tPIO = 0x%x\n", id[ATA_ID_OLD_PIO_MODES] >> 8); |
| 1090 | US_DEBUGP(" tDMA = 0x%x\n", id[ATA_ID_OLD_DMA_MODES] >> 8); |
| 1091 | US_DEBUGP(" field_valid = 0x%x\n", id[ATA_ID_FIELD_VALID]); |
| 1092 | US_DEBUGP(" cur_cyls = 0x%x\n", id[ATA_ID_CUR_CYLS]); |
| 1093 | US_DEBUGP(" cur_heads = 0x%x\n", id[ATA_ID_CUR_HEADS]); |
| 1094 | US_DEBUGP(" cur_sectors = 0x%x\n", id[ATA_ID_CUR_SECTORS]); |
| 1095 | US_DEBUGP(" cur_capacity = 0x%x\n", ata_id_u32(id, 57)); |
| 1096 | US_DEBUGP(" multsect = 0x%x\n", id[ATA_ID_MULTSECT] & 0xff); |
| 1097 | US_DEBUGP(" lba_capacity = 0x%x\n", ata_id_u32(id, ATA_ID_LBA_CAPACITY)); |
| 1098 | US_DEBUGP(" command_set_1 = 0x%x\n", id[ATA_ID_COMMAND_SET_1]); |
| 1099 | US_DEBUGP(" command_set_2 = 0x%x\n", id[ATA_ID_COMMAND_SET_2]); |
| 1100 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1101 | |
| 1102 | /************************************************************************** |
| 1103 | * isd200_get_inquiry_data |
| 1104 | * |
| 1105 | * Get inquiry data |
| 1106 | * |
| 1107 | * RETURNS: |
| 1108 | * ISD status code |
| 1109 | */ |
| 1110 | static int isd200_get_inquiry_data( struct us_data *us ) |
| 1111 | { |
| 1112 | struct isd200_info *info = (struct isd200_info *)us->extra; |
| 1113 | int retStatus = ISD200_GOOD; |
Bartlomiej Zolnierkiewicz | d8881cd | 2009-04-01 21:42:19 +0200 | [diff] [blame] | 1114 | u16 *id = info->id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1115 | |
| 1116 | US_DEBUGP("Entering isd200_get_inquiry_data\n"); |
| 1117 | |
| 1118 | /* set default to Master */ |
| 1119 | info->DeviceHead = ATA_ADDRESS_DEVHEAD_STD; |
| 1120 | |
| 1121 | /* attempt to manually enumerate this device */ |
| 1122 | retStatus = isd200_manual_enum(us); |
| 1123 | if (retStatus == ISD200_GOOD) { |
| 1124 | int transferStatus; |
| 1125 | |
| 1126 | /* check for an ATA device */ |
| 1127 | if (info->DeviceFlags & DF_ATA_DEVICE) { |
| 1128 | /* this must be an ATA device */ |
| 1129 | /* perform an ATA Command Identify */ |
| 1130 | transferStatus = isd200_action( us, ACTION_IDENTIFY, |
Bartlomiej Zolnierkiewicz | d8881cd | 2009-04-01 21:42:19 +0200 | [diff] [blame] | 1131 | id, ATA_ID_WORDS * 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1132 | if (transferStatus != ISD200_TRANSPORT_GOOD) { |
| 1133 | /* Error issuing ATA Command Identify */ |
| 1134 | US_DEBUGP(" Error issuing ATA Command Identify\n"); |
| 1135 | retStatus = ISD200_ERROR; |
| 1136 | } else { |
| 1137 | /* ATA Command Identify successful */ |
| 1138 | int i; |
| 1139 | __be16 *src; |
| 1140 | __u16 *dest; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1141 | |
Bartlomiej Zolnierkiewicz | d8881cd | 2009-04-01 21:42:19 +0200 | [diff] [blame] | 1142 | isd200_fix_driveid(id); |
| 1143 | isd200_dump_driveid(id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1144 | |
| 1145 | memset(&info->InquiryData, 0, sizeof(info->InquiryData)); |
| 1146 | |
| 1147 | /* Standard IDE interface only supports disks */ |
| 1148 | info->InquiryData.DeviceType = DIRECT_ACCESS_DEVICE; |
| 1149 | |
| 1150 | /* The length must be at least 36 (5 + 31) */ |
| 1151 | info->InquiryData.AdditionalLength = 0x1F; |
| 1152 | |
Bartlomiej Zolnierkiewicz | d8881cd | 2009-04-01 21:42:19 +0200 | [diff] [blame] | 1153 | if (id[ATA_ID_COMMAND_SET_1] & COMMANDSET_MEDIA_STATUS) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1154 | /* set the removable bit */ |
| 1155 | info->InquiryData.DeviceTypeModifier = DEVICE_REMOVABLE; |
| 1156 | info->DeviceFlags |= DF_REMOVABLE_MEDIA; |
| 1157 | } |
| 1158 | |
| 1159 | /* Fill in vendor identification fields */ |
Bartlomiej Zolnierkiewicz | d8881cd | 2009-04-01 21:42:19 +0200 | [diff] [blame] | 1160 | src = (__be16 *)&id[ATA_ID_PROD]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1161 | dest = (__u16*)info->InquiryData.VendorId; |
| 1162 | for (i=0;i<4;i++) |
| 1163 | dest[i] = be16_to_cpu(src[i]); |
| 1164 | |
Bartlomiej Zolnierkiewicz | d8881cd | 2009-04-01 21:42:19 +0200 | [diff] [blame] | 1165 | src = (__be16 *)&id[ATA_ID_PROD + 8/2]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1166 | dest = (__u16*)info->InquiryData.ProductId; |
| 1167 | for (i=0;i<8;i++) |
| 1168 | dest[i] = be16_to_cpu(src[i]); |
| 1169 | |
Bartlomiej Zolnierkiewicz | d8881cd | 2009-04-01 21:42:19 +0200 | [diff] [blame] | 1170 | src = (__be16 *)&id[ATA_ID_FW_REV]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1171 | dest = (__u16*)info->InquiryData.ProductRevisionLevel; |
| 1172 | for (i=0;i<2;i++) |
| 1173 | dest[i] = be16_to_cpu(src[i]); |
| 1174 | |
| 1175 | /* determine if it supports Media Status Notification */ |
Bartlomiej Zolnierkiewicz | d8881cd | 2009-04-01 21:42:19 +0200 | [diff] [blame] | 1176 | if (id[ATA_ID_COMMAND_SET_2] & COMMANDSET_MEDIA_STATUS) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1177 | US_DEBUGP(" Device supports Media Status Notification\n"); |
| 1178 | |
| 1179 | /* Indicate that it is enabled, even though it is not |
| 1180 | * This allows the lock/unlock of the media to work |
| 1181 | * correctly. |
| 1182 | */ |
| 1183 | info->DeviceFlags |= DF_MEDIA_STATUS_ENABLED; |
| 1184 | } |
| 1185 | else |
| 1186 | info->DeviceFlags &= ~DF_MEDIA_STATUS_ENABLED; |
| 1187 | |
| 1188 | } |
| 1189 | } else { |
| 1190 | /* |
| 1191 | * this must be an ATAPI device |
| 1192 | * use an ATAPI protocol (Transparent SCSI) |
| 1193 | */ |
| 1194 | us->protocol_name = "Transparent SCSI"; |
| 1195 | us->proto_handler = usb_stor_transparent_scsi_command; |
| 1196 | |
| 1197 | US_DEBUGP("Protocol changed to: %s\n", us->protocol_name); |
| 1198 | |
| 1199 | /* Free driver structure */ |
| 1200 | us->extra_destructor(info); |
Boaz Harrosh | ba2ef3b | 2008-03-17 14:21:01 -0700 | [diff] [blame] | 1201 | kfree(info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1202 | us->extra = NULL; |
| 1203 | us->extra_destructor = NULL; |
| 1204 | } |
| 1205 | } |
| 1206 | |
| 1207 | US_DEBUGP("Leaving isd200_get_inquiry_data %08X\n", retStatus); |
| 1208 | |
| 1209 | return(retStatus); |
| 1210 | } |
| 1211 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1212 | /************************************************************************** |
| 1213 | * isd200_scsi_to_ata |
| 1214 | * |
| 1215 | * Translate SCSI commands to ATA commands. |
| 1216 | * |
| 1217 | * RETURNS: |
| 1218 | * 1 if the command needs to be sent to the transport layer |
| 1219 | * 0 otherwise |
| 1220 | */ |
| 1221 | static int isd200_scsi_to_ata(struct scsi_cmnd *srb, struct us_data *us, |
| 1222 | union ata_cdb * ataCdb) |
| 1223 | { |
| 1224 | struct isd200_info *info = (struct isd200_info *)us->extra; |
Bartlomiej Zolnierkiewicz | d8881cd | 2009-04-01 21:42:19 +0200 | [diff] [blame] | 1225 | u16 *id = info->id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1226 | int sendToTransport = 1; |
| 1227 | unsigned char sectnum, head; |
| 1228 | unsigned short cylinder; |
| 1229 | unsigned long lba; |
| 1230 | unsigned long blockCount; |
| 1231 | unsigned char senseData[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; |
| 1232 | |
| 1233 | memset(ataCdb, 0, sizeof(union ata_cdb)); |
| 1234 | |
| 1235 | /* SCSI Command */ |
| 1236 | switch (srb->cmnd[0]) { |
| 1237 | case INQUIRY: |
| 1238 | US_DEBUGP(" ATA OUT - INQUIRY\n"); |
| 1239 | |
| 1240 | /* copy InquiryData */ |
| 1241 | usb_stor_set_xfer_buf((unsigned char *) &info->InquiryData, |
| 1242 | sizeof(info->InquiryData), srb); |
| 1243 | srb->result = SAM_STAT_GOOD; |
| 1244 | sendToTransport = 0; |
| 1245 | break; |
| 1246 | |
| 1247 | case MODE_SENSE: |
| 1248 | US_DEBUGP(" ATA OUT - SCSIOP_MODE_SENSE\n"); |
| 1249 | |
| 1250 | /* Initialize the return buffer */ |
| 1251 | usb_stor_set_xfer_buf(senseData, sizeof(senseData), srb); |
| 1252 | |
| 1253 | if (info->DeviceFlags & DF_MEDIA_STATUS_ENABLED) |
| 1254 | { |
| 1255 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; |
| 1256 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; |
| 1257 | ataCdb->generic.TransferBlockSize = 1; |
| 1258 | ataCdb->generic.RegisterSelect = REG_COMMAND; |
| 1259 | ataCdb->write.CommandByte = ATA_COMMAND_GET_MEDIA_STATUS; |
Boaz Harrosh | 48c23d3 | 2007-08-22 19:10:45 +0300 | [diff] [blame] | 1260 | isd200_srb_set_bufflen(srb, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1261 | } else { |
| 1262 | US_DEBUGP(" Media Status not supported, just report okay\n"); |
| 1263 | srb->result = SAM_STAT_GOOD; |
| 1264 | sendToTransport = 0; |
| 1265 | } |
| 1266 | break; |
| 1267 | |
| 1268 | case TEST_UNIT_READY: |
| 1269 | US_DEBUGP(" ATA OUT - SCSIOP_TEST_UNIT_READY\n"); |
| 1270 | |
| 1271 | if (info->DeviceFlags & DF_MEDIA_STATUS_ENABLED) |
| 1272 | { |
| 1273 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; |
| 1274 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; |
| 1275 | ataCdb->generic.TransferBlockSize = 1; |
| 1276 | ataCdb->generic.RegisterSelect = REG_COMMAND; |
| 1277 | ataCdb->write.CommandByte = ATA_COMMAND_GET_MEDIA_STATUS; |
Boaz Harrosh | 48c23d3 | 2007-08-22 19:10:45 +0300 | [diff] [blame] | 1278 | isd200_srb_set_bufflen(srb, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1279 | } else { |
| 1280 | US_DEBUGP(" Media Status not supported, just report okay\n"); |
| 1281 | srb->result = SAM_STAT_GOOD; |
| 1282 | sendToTransport = 0; |
| 1283 | } |
| 1284 | break; |
| 1285 | |
| 1286 | case READ_CAPACITY: |
| 1287 | { |
| 1288 | unsigned long capacity; |
| 1289 | struct read_capacity_data readCapacityData; |
| 1290 | |
| 1291 | US_DEBUGP(" ATA OUT - SCSIOP_READ_CAPACITY\n"); |
| 1292 | |
Bartlomiej Zolnierkiewicz | d8881cd | 2009-04-01 21:42:19 +0200 | [diff] [blame] | 1293 | if (ata_id_has_lba(id)) |
| 1294 | capacity = ata_id_u32(id, ATA_ID_LBA_CAPACITY) - 1; |
| 1295 | else |
| 1296 | capacity = (id[ATA_ID_HEADS] * id[ATA_ID_CYLS] * |
| 1297 | id[ATA_ID_SECTORS]) - 1; |
| 1298 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1299 | readCapacityData.LogicalBlockAddress = cpu_to_be32(capacity); |
| 1300 | readCapacityData.BytesPerBlock = cpu_to_be32(0x200); |
| 1301 | |
| 1302 | usb_stor_set_xfer_buf((unsigned char *) &readCapacityData, |
| 1303 | sizeof(readCapacityData), srb); |
| 1304 | srb->result = SAM_STAT_GOOD; |
| 1305 | sendToTransport = 0; |
| 1306 | } |
| 1307 | break; |
| 1308 | |
| 1309 | case READ_10: |
| 1310 | US_DEBUGP(" ATA OUT - SCSIOP_READ\n"); |
| 1311 | |
| 1312 | lba = be32_to_cpu(*(__be32 *)&srb->cmnd[2]); |
| 1313 | blockCount = (unsigned long)srb->cmnd[7]<<8 | (unsigned long)srb->cmnd[8]; |
| 1314 | |
Bartlomiej Zolnierkiewicz | d8881cd | 2009-04-01 21:42:19 +0200 | [diff] [blame] | 1315 | if (ata_id_has_lba(id)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1316 | sectnum = (unsigned char)(lba); |
| 1317 | cylinder = (unsigned short)(lba>>8); |
| 1318 | head = ATA_ADDRESS_DEVHEAD_LBA_MODE | (unsigned char)(lba>>24 & 0x0F); |
| 1319 | } else { |
Bartlomiej Zolnierkiewicz | d8881cd | 2009-04-01 21:42:19 +0200 | [diff] [blame] | 1320 | sectnum = (u8)((lba % id[ATA_ID_SECTORS]) + 1); |
| 1321 | cylinder = (u16)(lba / (id[ATA_ID_SECTORS] * |
| 1322 | id[ATA_ID_HEADS])); |
| 1323 | head = (u8)((lba / id[ATA_ID_SECTORS]) % |
| 1324 | id[ATA_ID_HEADS]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1325 | } |
| 1326 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; |
| 1327 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; |
| 1328 | ataCdb->generic.TransferBlockSize = 1; |
| 1329 | ataCdb->generic.RegisterSelect = |
| 1330 | REG_SECTOR_COUNT | REG_SECTOR_NUMBER | |
| 1331 | REG_CYLINDER_LOW | REG_CYLINDER_HIGH | |
| 1332 | REG_DEVICE_HEAD | REG_COMMAND; |
| 1333 | ataCdb->write.SectorCountByte = (unsigned char)blockCount; |
| 1334 | ataCdb->write.SectorNumberByte = sectnum; |
| 1335 | ataCdb->write.CylinderHighByte = (unsigned char)(cylinder>>8); |
| 1336 | ataCdb->write.CylinderLowByte = (unsigned char)cylinder; |
| 1337 | ataCdb->write.DeviceHeadByte = (head | ATA_ADDRESS_DEVHEAD_STD); |
Bartlomiej Zolnierkiewicz | f08f31f | 2009-04-01 21:42:24 +0200 | [diff] [blame] | 1338 | ataCdb->write.CommandByte = ATA_CMD_PIO_READ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1339 | break; |
| 1340 | |
| 1341 | case WRITE_10: |
| 1342 | US_DEBUGP(" ATA OUT - SCSIOP_WRITE\n"); |
| 1343 | |
| 1344 | lba = be32_to_cpu(*(__be32 *)&srb->cmnd[2]); |
| 1345 | blockCount = (unsigned long)srb->cmnd[7]<<8 | (unsigned long)srb->cmnd[8]; |
| 1346 | |
Bartlomiej Zolnierkiewicz | d8881cd | 2009-04-01 21:42:19 +0200 | [diff] [blame] | 1347 | if (ata_id_has_lba(id)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1348 | sectnum = (unsigned char)(lba); |
| 1349 | cylinder = (unsigned short)(lba>>8); |
| 1350 | head = ATA_ADDRESS_DEVHEAD_LBA_MODE | (unsigned char)(lba>>24 & 0x0F); |
| 1351 | } else { |
Bartlomiej Zolnierkiewicz | d8881cd | 2009-04-01 21:42:19 +0200 | [diff] [blame] | 1352 | sectnum = (u8)((lba % id[ATA_ID_SECTORS]) + 1); |
| 1353 | cylinder = (u16)(lba / (id[ATA_ID_SECTORS] * |
| 1354 | id[ATA_ID_HEADS])); |
| 1355 | head = (u8)((lba / id[ATA_ID_SECTORS]) % |
| 1356 | id[ATA_ID_HEADS]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1357 | } |
| 1358 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; |
| 1359 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; |
| 1360 | ataCdb->generic.TransferBlockSize = 1; |
| 1361 | ataCdb->generic.RegisterSelect = |
| 1362 | REG_SECTOR_COUNT | REG_SECTOR_NUMBER | |
| 1363 | REG_CYLINDER_LOW | REG_CYLINDER_HIGH | |
| 1364 | REG_DEVICE_HEAD | REG_COMMAND; |
| 1365 | ataCdb->write.SectorCountByte = (unsigned char)blockCount; |
| 1366 | ataCdb->write.SectorNumberByte = sectnum; |
| 1367 | ataCdb->write.CylinderHighByte = (unsigned char)(cylinder>>8); |
| 1368 | ataCdb->write.CylinderLowByte = (unsigned char)cylinder; |
| 1369 | ataCdb->write.DeviceHeadByte = (head | ATA_ADDRESS_DEVHEAD_STD); |
Bartlomiej Zolnierkiewicz | f08f31f | 2009-04-01 21:42:24 +0200 | [diff] [blame] | 1370 | ataCdb->write.CommandByte = ATA_CMD_PIO_WRITE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1371 | break; |
| 1372 | |
| 1373 | case ALLOW_MEDIUM_REMOVAL: |
| 1374 | US_DEBUGP(" ATA OUT - SCSIOP_MEDIUM_REMOVAL\n"); |
| 1375 | |
| 1376 | if (info->DeviceFlags & DF_REMOVABLE_MEDIA) { |
| 1377 | US_DEBUGP(" srb->cmnd[4] = 0x%X\n", srb->cmnd[4]); |
| 1378 | |
| 1379 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; |
| 1380 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; |
| 1381 | ataCdb->generic.TransferBlockSize = 1; |
| 1382 | ataCdb->generic.RegisterSelect = REG_COMMAND; |
| 1383 | ataCdb->write.CommandByte = (srb->cmnd[4] & 0x1) ? |
Bartlomiej Zolnierkiewicz | f08f31f | 2009-04-01 21:42:24 +0200 | [diff] [blame] | 1384 | ATA_CMD_MEDIA_LOCK : ATA_CMD_MEDIA_UNLOCK; |
Boaz Harrosh | 48c23d3 | 2007-08-22 19:10:45 +0300 | [diff] [blame] | 1385 | isd200_srb_set_bufflen(srb, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1386 | } else { |
| 1387 | US_DEBUGP(" Not removeable media, just report okay\n"); |
| 1388 | srb->result = SAM_STAT_GOOD; |
| 1389 | sendToTransport = 0; |
| 1390 | } |
| 1391 | break; |
| 1392 | |
| 1393 | case START_STOP: |
| 1394 | US_DEBUGP(" ATA OUT - SCSIOP_START_STOP_UNIT\n"); |
| 1395 | US_DEBUGP(" srb->cmnd[4] = 0x%X\n", srb->cmnd[4]); |
| 1396 | |
| 1397 | if ((srb->cmnd[4] & 0x3) == 0x2) { |
| 1398 | US_DEBUGP(" Media Eject\n"); |
| 1399 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; |
| 1400 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; |
| 1401 | ataCdb->generic.TransferBlockSize = 0; |
| 1402 | ataCdb->generic.RegisterSelect = REG_COMMAND; |
| 1403 | ataCdb->write.CommandByte = ATA_COMMAND_MEDIA_EJECT; |
| 1404 | } else if ((srb->cmnd[4] & 0x3) == 0x1) { |
| 1405 | US_DEBUGP(" Get Media Status\n"); |
| 1406 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; |
| 1407 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; |
| 1408 | ataCdb->generic.TransferBlockSize = 1; |
| 1409 | ataCdb->generic.RegisterSelect = REG_COMMAND; |
| 1410 | ataCdb->write.CommandByte = ATA_COMMAND_GET_MEDIA_STATUS; |
Boaz Harrosh | 48c23d3 | 2007-08-22 19:10:45 +0300 | [diff] [blame] | 1411 | isd200_srb_set_bufflen(srb, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1412 | } else { |
| 1413 | US_DEBUGP(" Nothing to do, just report okay\n"); |
| 1414 | srb->result = SAM_STAT_GOOD; |
| 1415 | sendToTransport = 0; |
| 1416 | } |
| 1417 | break; |
| 1418 | |
| 1419 | default: |
| 1420 | US_DEBUGP("Unsupported SCSI command - 0x%X\n", srb->cmnd[0]); |
| 1421 | srb->result = DID_ERROR << 16; |
| 1422 | sendToTransport = 0; |
| 1423 | break; |
| 1424 | } |
| 1425 | |
| 1426 | return(sendToTransport); |
| 1427 | } |
| 1428 | |
| 1429 | |
| 1430 | /************************************************************************** |
| 1431 | * isd200_free_info |
| 1432 | * |
| 1433 | * Frees the driver structure. |
| 1434 | */ |
| 1435 | static void isd200_free_info_ptrs(void *info_) |
| 1436 | { |
| 1437 | struct isd200_info *info = (struct isd200_info *) info_; |
| 1438 | |
| 1439 | if (info) { |
| 1440 | kfree(info->id); |
| 1441 | kfree(info->RegsBuf); |
Boaz Harrosh | e92e63a | 2008-03-12 19:20:09 +0200 | [diff] [blame] | 1442 | kfree(info->srb.sense_buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1443 | } |
| 1444 | } |
| 1445 | |
| 1446 | /************************************************************************** |
| 1447 | * isd200_init_info |
| 1448 | * |
| 1449 | * Allocates (if necessary) and initializes the driver structure. |
| 1450 | * |
| 1451 | * RETURNS: |
| 1452 | * ISD status code |
| 1453 | */ |
| 1454 | static int isd200_init_info(struct us_data *us) |
| 1455 | { |
| 1456 | int retStatus = ISD200_GOOD; |
| 1457 | struct isd200_info *info; |
| 1458 | |
| 1459 | info = (struct isd200_info *) |
Oliver Neukum | 887c256 | 2006-01-08 12:33:45 +0100 | [diff] [blame] | 1460 | kzalloc(sizeof(struct isd200_info), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1461 | if (!info) |
| 1462 | retStatus = ISD200_ERROR; |
| 1463 | else { |
Bartlomiej Zolnierkiewicz | d8881cd | 2009-04-01 21:42:19 +0200 | [diff] [blame] | 1464 | info->id = kzalloc(ATA_ID_WORDS * 2, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1465 | info->RegsBuf = (unsigned char *) |
| 1466 | kmalloc(sizeof(info->ATARegs), GFP_KERNEL); |
Boaz Harrosh | e92e63a | 2008-03-12 19:20:09 +0200 | [diff] [blame] | 1467 | info->srb.sense_buffer = |
| 1468 | kmalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL); |
| 1469 | if (!info->id || !info->RegsBuf || !info->srb.sense_buffer) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1470 | isd200_free_info_ptrs(info); |
| 1471 | kfree(info); |
| 1472 | retStatus = ISD200_ERROR; |
Oliver Neukum | 887c256 | 2006-01-08 12:33:45 +0100 | [diff] [blame] | 1473 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1474 | } |
| 1475 | |
| 1476 | if (retStatus == ISD200_GOOD) { |
| 1477 | us->extra = info; |
| 1478 | us->extra_destructor = isd200_free_info_ptrs; |
| 1479 | } else |
| 1480 | US_DEBUGP("ERROR - kmalloc failure\n"); |
| 1481 | |
Eric Sesterhenn | 80b6ca4 | 2006-02-27 21:29:43 +0100 | [diff] [blame] | 1482 | return retStatus; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1483 | } |
| 1484 | |
| 1485 | /************************************************************************** |
| 1486 | * Initialization for the ISD200 |
| 1487 | */ |
| 1488 | |
Alan Stern | 32d5493 | 2009-02-12 14:47:54 -0500 | [diff] [blame] | 1489 | static int isd200_Initialization(struct us_data *us) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1490 | { |
| 1491 | US_DEBUGP("ISD200 Initialization...\n"); |
| 1492 | |
| 1493 | /* Initialize ISD200 info struct */ |
| 1494 | |
| 1495 | if (isd200_init_info(us) == ISD200_ERROR) { |
| 1496 | US_DEBUGP("ERROR Initializing ISD200 Info struct\n"); |
| 1497 | } else { |
| 1498 | /* Get device specific data */ |
| 1499 | |
| 1500 | if (isd200_get_inquiry_data(us) != ISD200_GOOD) |
| 1501 | US_DEBUGP("ISD200 Initialization Failure\n"); |
| 1502 | else |
| 1503 | US_DEBUGP("ISD200 Initialization complete\n"); |
| 1504 | } |
| 1505 | |
| 1506 | return 0; |
| 1507 | } |
| 1508 | |
| 1509 | |
| 1510 | /************************************************************************** |
| 1511 | * Protocol and Transport for the ISD200 ASIC |
| 1512 | * |
| 1513 | * This protocol and transport are for ATA devices connected to an ISD200 |
| 1514 | * ASIC. An ATAPI device that is conected as a slave device will be |
| 1515 | * detected in the driver initialization function and the protocol will |
| 1516 | * be changed to an ATAPI protocol (Transparent SCSI). |
| 1517 | * |
| 1518 | */ |
| 1519 | |
Alan Stern | 32d5493 | 2009-02-12 14:47:54 -0500 | [diff] [blame] | 1520 | static void isd200_ata_command(struct scsi_cmnd *srb, struct us_data *us) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1521 | { |
Boaz Harrosh | 48c23d3 | 2007-08-22 19:10:45 +0300 | [diff] [blame] | 1522 | int sendToTransport = 1, orig_bufflen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1523 | union ata_cdb ataCdb; |
| 1524 | |
| 1525 | /* Make sure driver was initialized */ |
| 1526 | |
| 1527 | if (us->extra == NULL) |
| 1528 | US_DEBUGP("ERROR Driver not initialized\n"); |
| 1529 | |
Boaz Harrosh | 48c23d3 | 2007-08-22 19:10:45 +0300 | [diff] [blame] | 1530 | scsi_set_resid(srb, 0); |
| 1531 | /* scsi_bufflen might change in protocol translation to ata */ |
| 1532 | orig_bufflen = scsi_bufflen(srb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1533 | sendToTransport = isd200_scsi_to_ata(srb, us, &ataCdb); |
| 1534 | |
| 1535 | /* send the command to the transport layer */ |
| 1536 | if (sendToTransport) |
| 1537 | isd200_invoke_transport(us, srb, &ataCdb); |
Boaz Harrosh | 48c23d3 | 2007-08-22 19:10:45 +0300 | [diff] [blame] | 1538 | |
| 1539 | isd200_srb_set_bufflen(srb, orig_bufflen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1540 | } |
Alan Stern | 32d5493 | 2009-02-12 14:47:54 -0500 | [diff] [blame] | 1541 | |
| 1542 | static int isd200_probe(struct usb_interface *intf, |
| 1543 | const struct usb_device_id *id) |
| 1544 | { |
| 1545 | struct us_data *us; |
| 1546 | int result; |
| 1547 | |
| 1548 | result = usb_stor_probe1(&us, intf, id, |
| 1549 | (id - isd200_usb_ids) + isd200_unusual_dev_list); |
| 1550 | if (result) |
| 1551 | return result; |
| 1552 | |
| 1553 | us->protocol_name = "ISD200 ATA/ATAPI"; |
| 1554 | us->proto_handler = isd200_ata_command; |
| 1555 | |
| 1556 | result = usb_stor_probe2(us); |
| 1557 | return result; |
| 1558 | } |
| 1559 | |
| 1560 | static struct usb_driver isd200_driver = { |
| 1561 | .name = "ums-isd200", |
| 1562 | .probe = isd200_probe, |
| 1563 | .disconnect = usb_stor_disconnect, |
| 1564 | .suspend = usb_stor_suspend, |
| 1565 | .resume = usb_stor_resume, |
| 1566 | .reset_resume = usb_stor_reset_resume, |
| 1567 | .pre_reset = usb_stor_pre_reset, |
| 1568 | .post_reset = usb_stor_post_reset, |
| 1569 | .id_table = isd200_usb_ids, |
| 1570 | .soft_unbind = 1, |
| 1571 | }; |
| 1572 | |
| 1573 | static int __init isd200_init(void) |
| 1574 | { |
| 1575 | return usb_register(&isd200_driver); |
| 1576 | } |
| 1577 | |
| 1578 | static void __exit isd200_exit(void) |
| 1579 | { |
| 1580 | usb_deregister(&isd200_driver); |
| 1581 | } |
| 1582 | |
| 1583 | module_init(isd200_init); |
| 1584 | module_exit(isd200_exit); |