Commit | Line | Data |
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1da177e4 | 1 | /* Transport & Protocol Driver for In-System Design, Inc. ISD200 ASIC |
1da177e4 LT |
2 | * |
3 | * Current development and maintenance: | |
96de0e25 | 4 | * (C) 2001-2002 Björn Stenberg (bjorn@haxx.se) |
1da177e4 LT |
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> | |
32d5493e | 47 | #include <linux/module.h> |
1da177e4 | 48 | #include <linux/slab.h> |
d8881cda | 49 | #include <linux/ata.h> |
1da177e4 | 50 | #include <linux/hdreg.h> |
48c23d3e | 51 | #include <linux/scatterlist.h> |
1da177e4 LT |
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" | |
32d5493e | 62 | |
4246b06a | 63 | MODULE_DESCRIPTION("Driver for In-System Design, Inc. ISD200 ASIC"); |
d36b6910 | 64 | MODULE_AUTHOR("Björn Stenberg <bjorn@haxx.se>"); |
4246b06a | 65 | MODULE_LICENSE("GPL"); |
32d5493e AS |
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), \ | |
f61870ee | 77 | .driver_info = (flags) } |
32d5493e | 78 | |
e7724baf | 79 | static struct usb_device_id isd200_usb_ids[] = { |
32d5493e AS |
80 | # include "unusual_isd200.h" |
81 | { } /* Terminating entry */ | |
82 | }; | |
83 | MODULE_DEVICE_TABLE(usb, isd200_usb_ids); | |
84 | ||
85 | #undef UNUSUAL_DEV | |
32d5493e AS |
86 | |
87 | /* | |
88 | * The flags table | |
89 | */ | |
90 | #define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \ | |
91 | vendor_name, product_name, use_protocol, use_transport, \ | |
92 | init_function, Flags) \ | |
93 | { \ | |
94 | .vendorName = vendor_name, \ | |
95 | .productName = product_name, \ | |
96 | .useProtocol = use_protocol, \ | |
97 | .useTransport = use_transport, \ | |
98 | .initFunction = init_function, \ | |
99 | } | |
100 | ||
101 | static struct us_unusual_dev isd200_unusual_dev_list[] = { | |
102 | # include "unusual_isd200.h" | |
103 | { } /* Terminating entry */ | |
104 | }; | |
105 | ||
106 | #undef UNUSUAL_DEV | |
1da177e4 LT |
107 | |
108 | /* Timeout defines (in Seconds) */ | |
109 | ||
110 | #define ISD200_ENUM_BSY_TIMEOUT 35 | |
111 | #define ISD200_ENUM_DETECT_TIMEOUT 30 | |
112 | #define ISD200_DEFAULT_TIMEOUT 30 | |
113 | ||
114 | /* device flags */ | |
115 | #define DF_ATA_DEVICE 0x0001 | |
116 | #define DF_MEDIA_STATUS_ENABLED 0x0002 | |
117 | #define DF_REMOVABLE_MEDIA 0x0004 | |
118 | ||
119 | /* capability bit definitions */ | |
120 | #define CAPABILITY_DMA 0x01 | |
121 | #define CAPABILITY_LBA 0x02 | |
122 | ||
123 | /* command_setX bit definitions */ | |
124 | #define COMMANDSET_REMOVABLE 0x02 | |
125 | #define COMMANDSET_MEDIA_STATUS 0x10 | |
126 | ||
127 | /* ATA Vendor Specific defines */ | |
128 | #define ATA_ADDRESS_DEVHEAD_STD 0xa0 | |
129 | #define ATA_ADDRESS_DEVHEAD_LBA_MODE 0x40 | |
130 | #define ATA_ADDRESS_DEVHEAD_SLAVE 0x10 | |
131 | ||
132 | /* Action Select bits */ | |
133 | #define ACTION_SELECT_0 0x01 | |
134 | #define ACTION_SELECT_1 0x02 | |
135 | #define ACTION_SELECT_2 0x04 | |
136 | #define ACTION_SELECT_3 0x08 | |
137 | #define ACTION_SELECT_4 0x10 | |
138 | #define ACTION_SELECT_5 0x20 | |
139 | #define ACTION_SELECT_6 0x40 | |
140 | #define ACTION_SELECT_7 0x80 | |
141 | ||
142 | /* Register Select bits */ | |
143 | #define REG_ALTERNATE_STATUS 0x01 | |
144 | #define REG_DEVICE_CONTROL 0x01 | |
145 | #define REG_ERROR 0x02 | |
146 | #define REG_FEATURES 0x02 | |
147 | #define REG_SECTOR_COUNT 0x04 | |
148 | #define REG_SECTOR_NUMBER 0x08 | |
149 | #define REG_CYLINDER_LOW 0x10 | |
150 | #define REG_CYLINDER_HIGH 0x20 | |
151 | #define REG_DEVICE_HEAD 0x40 | |
152 | #define REG_STATUS 0x80 | |
153 | #define REG_COMMAND 0x80 | |
154 | ||
c74e8095 BZ |
155 | /* ATA registers offset definitions */ |
156 | #define ATA_REG_ERROR_OFFSET 1 | |
157 | #define ATA_REG_LCYL_OFFSET 4 | |
158 | #define ATA_REG_HCYL_OFFSET 5 | |
159 | #define ATA_REG_STATUS_OFFSET 7 | |
160 | ||
1da177e4 LT |
161 | /* ATA error definitions not in <linux/hdreg.h> */ |
162 | #define ATA_ERROR_MEDIA_CHANGE 0x20 | |
163 | ||
164 | /* ATA command definitions not in <linux/hdreg.h> */ | |
165 | #define ATA_COMMAND_GET_MEDIA_STATUS 0xDA | |
166 | #define ATA_COMMAND_MEDIA_EJECT 0xED | |
167 | ||
168 | /* ATA drive control definitions */ | |
169 | #define ATA_DC_DISABLE_INTERRUPTS 0x02 | |
170 | #define ATA_DC_RESET_CONTROLLER 0x04 | |
171 | #define ATA_DC_REENABLE_CONTROLLER 0x00 | |
172 | ||
173 | /* | |
174 | * General purpose return codes | |
175 | */ | |
176 | ||
177 | #define ISD200_ERROR -1 | |
178 | #define ISD200_GOOD 0 | |
179 | ||
180 | /* | |
181 | * Transport return codes | |
182 | */ | |
183 | ||
184 | #define ISD200_TRANSPORT_GOOD 0 /* Transport good, command good */ | |
185 | #define ISD200_TRANSPORT_FAILED 1 /* Transport good, command failed */ | |
186 | #define ISD200_TRANSPORT_ERROR 2 /* Transport bad (i.e. device dead) */ | |
187 | ||
188 | /* driver action codes */ | |
189 | #define ACTION_READ_STATUS 0 | |
190 | #define ACTION_RESET 1 | |
191 | #define ACTION_REENABLE 2 | |
192 | #define ACTION_SOFT_RESET 3 | |
193 | #define ACTION_ENUM 4 | |
194 | #define ACTION_IDENTIFY 5 | |
195 | ||
196 | ||
197 | /* | |
198 | * ata_cdb struct | |
199 | */ | |
200 | ||
201 | ||
202 | union ata_cdb { | |
203 | struct { | |
204 | unsigned char SignatureByte0; | |
205 | unsigned char SignatureByte1; | |
206 | unsigned char ActionSelect; | |
207 | unsigned char RegisterSelect; | |
208 | unsigned char TransferBlockSize; | |
209 | unsigned char WriteData3F6; | |
210 | unsigned char WriteData1F1; | |
211 | unsigned char WriteData1F2; | |
212 | unsigned char WriteData1F3; | |
213 | unsigned char WriteData1F4; | |
214 | unsigned char WriteData1F5; | |
215 | unsigned char WriteData1F6; | |
216 | unsigned char WriteData1F7; | |
217 | unsigned char Reserved[3]; | |
218 | } generic; | |
219 | ||
220 | struct { | |
221 | unsigned char SignatureByte0; | |
222 | unsigned char SignatureByte1; | |
223 | unsigned char ActionSelect; | |
224 | unsigned char RegisterSelect; | |
225 | unsigned char TransferBlockSize; | |
226 | unsigned char AlternateStatusByte; | |
227 | unsigned char ErrorByte; | |
228 | unsigned char SectorCountByte; | |
229 | unsigned char SectorNumberByte; | |
230 | unsigned char CylinderLowByte; | |
231 | unsigned char CylinderHighByte; | |
232 | unsigned char DeviceHeadByte; | |
233 | unsigned char StatusByte; | |
234 | unsigned char Reserved[3]; | |
235 | } read; | |
236 | ||
237 | struct { | |
238 | unsigned char SignatureByte0; | |
239 | unsigned char SignatureByte1; | |
240 | unsigned char ActionSelect; | |
241 | unsigned char RegisterSelect; | |
242 | unsigned char TransferBlockSize; | |
243 | unsigned char DeviceControlByte; | |
244 | unsigned char FeaturesByte; | |
245 | unsigned char SectorCountByte; | |
246 | unsigned char SectorNumberByte; | |
247 | unsigned char CylinderLowByte; | |
248 | unsigned char CylinderHighByte; | |
249 | unsigned char DeviceHeadByte; | |
250 | unsigned char CommandByte; | |
251 | unsigned char Reserved[3]; | |
252 | } write; | |
253 | }; | |
254 | ||
255 | ||
256 | /* | |
257 | * Inquiry data structure. This is the data returned from the target | |
258 | * after it receives an inquiry. | |
259 | * | |
260 | * This structure may be extended by the number of bytes specified | |
261 | * in the field AdditionalLength. The defined size constant only | |
262 | * includes fields through ProductRevisionLevel. | |
263 | */ | |
264 | ||
265 | /* | |
266 | * DeviceType field | |
267 | */ | |
268 | #define DIRECT_ACCESS_DEVICE 0x00 /* disks */ | |
269 | #define DEVICE_REMOVABLE 0x80 | |
270 | ||
271 | struct inquiry_data { | |
272 | unsigned char DeviceType; | |
273 | unsigned char DeviceTypeModifier; | |
274 | unsigned char Versions; | |
275 | unsigned char Format; | |
276 | unsigned char AdditionalLength; | |
277 | unsigned char Reserved[2]; | |
278 | unsigned char Capability; | |
279 | unsigned char VendorId[8]; | |
280 | unsigned char ProductId[16]; | |
281 | unsigned char ProductRevisionLevel[4]; | |
282 | unsigned char VendorSpecific[20]; | |
283 | unsigned char Reserved3[40]; | |
284 | } __attribute__ ((packed)); | |
285 | ||
286 | /* | |
287 | * INQUIRY data buffer size | |
288 | */ | |
289 | ||
290 | #define INQUIRYDATABUFFERSIZE 36 | |
291 | ||
292 | ||
293 | /* | |
294 | * ISD200 CONFIG data struct | |
295 | */ | |
296 | ||
297 | #define ATACFG_TIMING 0x0f | |
298 | #define ATACFG_ATAPI_RESET 0x10 | |
299 | #define ATACFG_MASTER 0x20 | |
300 | #define ATACFG_BLOCKSIZE 0xa0 | |
301 | ||
302 | #define ATACFGE_LAST_LUN 0x07 | |
303 | #define ATACFGE_DESC_OVERRIDE 0x08 | |
304 | #define ATACFGE_STATE_SUSPEND 0x10 | |
305 | #define ATACFGE_SKIP_BOOT 0x20 | |
306 | #define ATACFGE_CONF_DESC2 0x40 | |
307 | #define ATACFGE_INIT_STATUS 0x80 | |
308 | ||
309 | #define CFG_CAPABILITY_SRST 0x01 | |
310 | ||
311 | struct isd200_config { | |
312 | unsigned char EventNotification; | |
313 | unsigned char ExternalClock; | |
314 | unsigned char ATAInitTimeout; | |
315 | unsigned char ATAConfig; | |
316 | unsigned char ATAMajorCommand; | |
317 | unsigned char ATAMinorCommand; | |
318 | unsigned char ATAExtraConfig; | |
319 | unsigned char Capability; | |
320 | }__attribute__ ((packed)); | |
321 | ||
322 | ||
323 | /* | |
324 | * ISD200 driver information struct | |
325 | */ | |
326 | ||
327 | struct isd200_info { | |
328 | struct inquiry_data InquiryData; | |
d8881cda | 329 | u16 *id; |
1da177e4 LT |
330 | struct isd200_config ConfigData; |
331 | unsigned char *RegsBuf; | |
332 | unsigned char ATARegs[8]; | |
333 | unsigned char DeviceHead; | |
334 | unsigned char DeviceFlags; | |
335 | ||
336 | /* maximum number of LUNs supported */ | |
337 | unsigned char MaxLUNs; | |
64a87b24 | 338 | unsigned char cmnd[BLK_MAX_CDB]; |
1da177e4 | 339 | struct scsi_cmnd srb; |
48c23d3e | 340 | struct scatterlist sg; |
1da177e4 LT |
341 | }; |
342 | ||
343 | ||
344 | /* | |
345 | * Read Capacity Data - returned in Big Endian format | |
346 | */ | |
347 | ||
348 | struct read_capacity_data { | |
349 | __be32 LogicalBlockAddress; | |
350 | __be32 BytesPerBlock; | |
351 | }; | |
352 | ||
353 | /* | |
354 | * Read Block Limits Data - returned in Big Endian format | |
355 | * This structure returns the maximum and minimum block | |
356 | * size for a TAPE device. | |
357 | */ | |
358 | ||
359 | struct read_block_limits { | |
360 | unsigned char Reserved; | |
361 | unsigned char BlockMaximumSize[3]; | |
362 | unsigned char BlockMinimumSize[2]; | |
363 | }; | |
364 | ||
365 | ||
366 | /* | |
367 | * Sense Data Format | |
368 | */ | |
369 | ||
370 | #define SENSE_ERRCODE 0x7f | |
371 | #define SENSE_ERRCODE_VALID 0x80 | |
372 | #define SENSE_FLAG_SENSE_KEY 0x0f | |
373 | #define SENSE_FLAG_BAD_LENGTH 0x20 | |
374 | #define SENSE_FLAG_END_OF_MEDIA 0x40 | |
375 | #define SENSE_FLAG_FILE_MARK 0x80 | |
376 | struct sense_data { | |
377 | unsigned char ErrorCode; | |
378 | unsigned char SegmentNumber; | |
379 | unsigned char Flags; | |
380 | unsigned char Information[4]; | |
381 | unsigned char AdditionalSenseLength; | |
382 | unsigned char CommandSpecificInformation[4]; | |
383 | unsigned char AdditionalSenseCode; | |
384 | unsigned char AdditionalSenseCodeQualifier; | |
385 | unsigned char FieldReplaceableUnitCode; | |
386 | unsigned char SenseKeySpecific[3]; | |
387 | } __attribute__ ((packed)); | |
388 | ||
389 | /* | |
390 | * Default request sense buffer size | |
391 | */ | |
392 | ||
393 | #define SENSE_BUFFER_SIZE 18 | |
394 | ||
395 | /*********************************************************************** | |
396 | * Helper routines | |
397 | ***********************************************************************/ | |
398 | ||
399 | /************************************************************************** | |
400 | * isd200_build_sense | |
401 | * | |
402 | * Builds an artificial sense buffer to report the results of a | |
403 | * failed command. | |
404 | * | |
405 | * RETURNS: | |
406 | * void | |
407 | */ | |
408 | static void isd200_build_sense(struct us_data *us, struct scsi_cmnd *srb) | |
409 | { | |
410 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
411 | struct sense_data *buf = (struct sense_data *) &srb->sense_buffer[0]; | |
c74e8095 | 412 | unsigned char error = info->ATARegs[ATA_REG_ERROR_OFFSET]; |
1da177e4 LT |
413 | |
414 | if(error & ATA_ERROR_MEDIA_CHANGE) { | |
415 | buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID; | |
416 | buf->AdditionalSenseLength = 0xb; | |
417 | buf->Flags = UNIT_ATTENTION; | |
418 | buf->AdditionalSenseCode = 0; | |
419 | buf->AdditionalSenseCodeQualifier = 0; | |
fcd3ec69 | 420 | } else if (error & ATA_MCR) { |
1da177e4 LT |
421 | buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID; |
422 | buf->AdditionalSenseLength = 0xb; | |
423 | buf->Flags = UNIT_ATTENTION; | |
424 | buf->AdditionalSenseCode = 0; | |
425 | buf->AdditionalSenseCodeQualifier = 0; | |
fcd3ec69 | 426 | } else if (error & ATA_TRK0NF) { |
1da177e4 LT |
427 | buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID; |
428 | buf->AdditionalSenseLength = 0xb; | |
429 | buf->Flags = NOT_READY; | |
430 | buf->AdditionalSenseCode = 0; | |
431 | buf->AdditionalSenseCodeQualifier = 0; | |
fcd3ec69 | 432 | } else if (error & ATA_UNC) { |
1da177e4 LT |
433 | buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID; |
434 | buf->AdditionalSenseLength = 0xb; | |
435 | buf->Flags = DATA_PROTECT; | |
436 | buf->AdditionalSenseCode = 0; | |
437 | buf->AdditionalSenseCodeQualifier = 0; | |
438 | } else { | |
439 | buf->ErrorCode = 0; | |
440 | buf->AdditionalSenseLength = 0; | |
441 | buf->Flags = 0; | |
442 | buf->AdditionalSenseCode = 0; | |
443 | buf->AdditionalSenseCodeQualifier = 0; | |
444 | } | |
445 | } | |
446 | ||
447 | ||
448 | /*********************************************************************** | |
449 | * Transport routines | |
450 | ***********************************************************************/ | |
451 | ||
48c23d3e BH |
452 | /************************************************************************** |
453 | * isd200_set_srb(), isd200_srb_set_bufflen() | |
454 | * | |
455 | * Two helpers to facilitate in initialization of scsi_cmnd structure | |
456 | * Will need to change when struct scsi_cmnd changes | |
457 | */ | |
458 | static void isd200_set_srb(struct isd200_info *info, | |
459 | enum dma_data_direction dir, void* buff, unsigned bufflen) | |
460 | { | |
461 | struct scsi_cmnd *srb = &info->srb; | |
462 | ||
463 | if (buff) | |
464 | sg_init_one(&info->sg, buff, bufflen); | |
465 | ||
466 | srb->sc_data_direction = dir; | |
30b0c37b BH |
467 | srb->sdb.table.sgl = buff ? &info->sg : NULL; |
468 | srb->sdb.length = bufflen; | |
469 | srb->sdb.table.nents = buff ? 1 : 0; | |
48c23d3e BH |
470 | } |
471 | ||
472 | static void isd200_srb_set_bufflen(struct scsi_cmnd *srb, unsigned bufflen) | |
473 | { | |
30b0c37b | 474 | srb->sdb.length = bufflen; |
48c23d3e BH |
475 | } |
476 | ||
1da177e4 LT |
477 | |
478 | /************************************************************************** | |
479 | * isd200_action | |
480 | * | |
481 | * Routine for sending commands to the isd200 | |
482 | * | |
483 | * RETURNS: | |
484 | * ISD status code | |
485 | */ | |
486 | static int isd200_action( struct us_data *us, int action, | |
487 | void* pointer, int value ) | |
488 | { | |
489 | union ata_cdb ata; | |
0df4d8ef IM |
490 | /* static to prevent this large struct being placed on the valuable stack */ |
491 | static struct scsi_device srb_dev; | |
1da177e4 LT |
492 | struct isd200_info *info = (struct isd200_info *)us->extra; |
493 | struct scsi_cmnd *srb = &info->srb; | |
494 | int status; | |
495 | ||
496 | memset(&ata, 0, sizeof(ata)); | |
64a87b24 | 497 | srb->cmnd = info->cmnd; |
1da177e4 | 498 | srb->device = &srb_dev; |
1da177e4 LT |
499 | |
500 | ata.generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
501 | ata.generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
502 | ata.generic.TransferBlockSize = 1; | |
503 | ||
504 | switch ( action ) { | |
505 | case ACTION_READ_STATUS: | |
506 | US_DEBUGP(" isd200_action(READ_STATUS)\n"); | |
507 | ata.generic.ActionSelect = ACTION_SELECT_0|ACTION_SELECT_2; | |
508 | ata.generic.RegisterSelect = | |
509 | REG_CYLINDER_LOW | REG_CYLINDER_HIGH | | |
510 | REG_STATUS | REG_ERROR; | |
48c23d3e | 511 | isd200_set_srb(info, DMA_FROM_DEVICE, pointer, value); |
1da177e4 LT |
512 | break; |
513 | ||
514 | case ACTION_ENUM: | |
515 | US_DEBUGP(" isd200_action(ENUM,0x%02x)\n",value); | |
516 | ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_2| | |
517 | ACTION_SELECT_3|ACTION_SELECT_4| | |
518 | ACTION_SELECT_5; | |
519 | ata.generic.RegisterSelect = REG_DEVICE_HEAD; | |
520 | ata.write.DeviceHeadByte = value; | |
48c23d3e | 521 | isd200_set_srb(info, DMA_NONE, NULL, 0); |
1da177e4 LT |
522 | break; |
523 | ||
524 | case ACTION_RESET: | |
525 | US_DEBUGP(" isd200_action(RESET)\n"); | |
526 | ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_2| | |
527 | ACTION_SELECT_3|ACTION_SELECT_4; | |
528 | ata.generic.RegisterSelect = REG_DEVICE_CONTROL; | |
529 | ata.write.DeviceControlByte = ATA_DC_RESET_CONTROLLER; | |
48c23d3e | 530 | isd200_set_srb(info, DMA_NONE, NULL, 0); |
1da177e4 LT |
531 | break; |
532 | ||
533 | case ACTION_REENABLE: | |
534 | US_DEBUGP(" isd200_action(REENABLE)\n"); | |
535 | ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_2| | |
536 | ACTION_SELECT_3|ACTION_SELECT_4; | |
537 | ata.generic.RegisterSelect = REG_DEVICE_CONTROL; | |
538 | ata.write.DeviceControlByte = ATA_DC_REENABLE_CONTROLLER; | |
48c23d3e | 539 | isd200_set_srb(info, DMA_NONE, NULL, 0); |
1da177e4 LT |
540 | break; |
541 | ||
542 | case ACTION_SOFT_RESET: | |
543 | US_DEBUGP(" isd200_action(SOFT_RESET)\n"); | |
544 | ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_5; | |
545 | ata.generic.RegisterSelect = REG_DEVICE_HEAD | REG_COMMAND; | |
546 | ata.write.DeviceHeadByte = info->DeviceHead; | |
f08f31f7 | 547 | ata.write.CommandByte = ATA_CMD_DEV_RESET; |
48c23d3e | 548 | isd200_set_srb(info, DMA_NONE, NULL, 0); |
1da177e4 LT |
549 | break; |
550 | ||
551 | case ACTION_IDENTIFY: | |
552 | US_DEBUGP(" isd200_action(IDENTIFY)\n"); | |
553 | ata.generic.RegisterSelect = REG_COMMAND; | |
f08f31f7 | 554 | ata.write.CommandByte = ATA_CMD_ID_ATA; |
48c23d3e | 555 | isd200_set_srb(info, DMA_FROM_DEVICE, info->id, |
d8881cda | 556 | ATA_ID_WORDS * 2); |
1da177e4 LT |
557 | break; |
558 | ||
559 | default: | |
560 | US_DEBUGP("Error: Undefined action %d\n",action); | |
48c23d3e | 561 | return ISD200_ERROR; |
1da177e4 LT |
562 | } |
563 | ||
564 | memcpy(srb->cmnd, &ata, sizeof(ata.generic)); | |
565 | srb->cmd_len = sizeof(ata.generic); | |
566 | status = usb_stor_Bulk_transport(srb, us); | |
567 | if (status == USB_STOR_TRANSPORT_GOOD) | |
568 | status = ISD200_GOOD; | |
569 | else { | |
570 | US_DEBUGP(" isd200_action(0x%02x) error: %d\n",action,status); | |
571 | status = ISD200_ERROR; | |
572 | /* need to reset device here */ | |
573 | } | |
574 | ||
575 | return status; | |
576 | } | |
577 | ||
578 | /************************************************************************** | |
579 | * isd200_read_regs | |
580 | * | |
581 | * Read ATA Registers | |
582 | * | |
583 | * RETURNS: | |
584 | * ISD status code | |
585 | */ | |
586 | static int isd200_read_regs( struct us_data *us ) | |
587 | { | |
588 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
589 | int retStatus = ISD200_GOOD; | |
590 | int transferStatus; | |
591 | ||
592 | US_DEBUGP("Entering isd200_IssueATAReadRegs\n"); | |
593 | ||
594 | transferStatus = isd200_action( us, ACTION_READ_STATUS, | |
595 | info->RegsBuf, sizeof(info->ATARegs) ); | |
596 | if (transferStatus != ISD200_TRANSPORT_GOOD) { | |
597 | US_DEBUGP(" Error reading ATA registers\n"); | |
598 | retStatus = ISD200_ERROR; | |
599 | } else { | |
600 | memcpy(info->ATARegs, info->RegsBuf, sizeof(info->ATARegs)); | |
c74e8095 BZ |
601 | US_DEBUGP(" Got ATA Register[ATA_REG_ERROR_OFFSET] = 0x%x\n", |
602 | info->ATARegs[ATA_REG_ERROR_OFFSET]); | |
1da177e4 LT |
603 | } |
604 | ||
605 | return retStatus; | |
606 | } | |
607 | ||
608 | ||
609 | /************************************************************************** | |
610 | * Invoke the transport and basic error-handling/recovery methods | |
611 | * | |
612 | * This is used by the protocol layers to actually send the message to | |
613 | * the device and receive the response. | |
614 | */ | |
615 | static void isd200_invoke_transport( struct us_data *us, | |
616 | struct scsi_cmnd *srb, | |
617 | union ata_cdb *ataCdb ) | |
618 | { | |
619 | int need_auto_sense = 0; | |
620 | int transferStatus; | |
621 | int result; | |
622 | ||
623 | /* send the command to the transport layer */ | |
624 | memcpy(srb->cmnd, ataCdb, sizeof(ataCdb->generic)); | |
625 | srb->cmd_len = sizeof(ataCdb->generic); | |
626 | transferStatus = usb_stor_Bulk_transport(srb, us); | |
627 | ||
628 | /* if the command gets aborted by the higher layers, we need to | |
629 | * short-circuit all other processing | |
630 | */ | |
7e4d6c38 | 631 | if (test_bit(US_FLIDX_TIMED_OUT, &us->dflags)) { |
1da177e4 LT |
632 | US_DEBUGP("-- command was aborted\n"); |
633 | goto Handle_Abort; | |
634 | } | |
635 | ||
636 | switch (transferStatus) { | |
637 | ||
638 | case USB_STOR_TRANSPORT_GOOD: | |
639 | /* Indicate a good result */ | |
640 | srb->result = SAM_STAT_GOOD; | |
641 | break; | |
642 | ||
643 | case USB_STOR_TRANSPORT_NO_SENSE: | |
644 | US_DEBUGP("-- transport indicates protocol failure\n"); | |
645 | srb->result = SAM_STAT_CHECK_CONDITION; | |
646 | return; | |
647 | ||
648 | case USB_STOR_TRANSPORT_FAILED: | |
649 | US_DEBUGP("-- transport indicates command failure\n"); | |
650 | need_auto_sense = 1; | |
651 | break; | |
652 | ||
653 | case USB_STOR_TRANSPORT_ERROR: | |
654 | US_DEBUGP("-- transport indicates transport error\n"); | |
655 | srb->result = DID_ERROR << 16; | |
656 | /* Need reset here */ | |
657 | return; | |
658 | ||
659 | default: | |
660 | US_DEBUGP("-- transport indicates unknown error\n"); | |
661 | srb->result = DID_ERROR << 16; | |
662 | /* Need reset here */ | |
663 | return; | |
664 | } | |
665 | ||
48c23d3e | 666 | if ((scsi_get_resid(srb) > 0) && |
1da177e4 LT |
667 | !((srb->cmnd[0] == REQUEST_SENSE) || |
668 | (srb->cmnd[0] == INQUIRY) || | |
669 | (srb->cmnd[0] == MODE_SENSE) || | |
670 | (srb->cmnd[0] == LOG_SENSE) || | |
671 | (srb->cmnd[0] == MODE_SENSE_10))) { | |
672 | US_DEBUGP("-- unexpectedly short transfer\n"); | |
673 | need_auto_sense = 1; | |
674 | } | |
675 | ||
676 | if (need_auto_sense) { | |
677 | result = isd200_read_regs(us); | |
7e4d6c38 | 678 | if (test_bit(US_FLIDX_TIMED_OUT, &us->dflags)) { |
1da177e4 LT |
679 | US_DEBUGP("-- auto-sense aborted\n"); |
680 | goto Handle_Abort; | |
681 | } | |
682 | if (result == ISD200_GOOD) { | |
683 | isd200_build_sense(us, srb); | |
684 | srb->result = SAM_STAT_CHECK_CONDITION; | |
685 | ||
686 | /* If things are really okay, then let's show that */ | |
687 | if ((srb->sense_buffer[2] & 0xf) == 0x0) | |
688 | srb->result = SAM_STAT_GOOD; | |
689 | } else { | |
690 | srb->result = DID_ERROR << 16; | |
691 | /* Need reset here */ | |
692 | } | |
693 | } | |
694 | ||
695 | /* Regardless of auto-sense, if we _know_ we have an error | |
696 | * condition, show that in the result code | |
697 | */ | |
698 | if (transferStatus == USB_STOR_TRANSPORT_FAILED) | |
699 | srb->result = SAM_STAT_CHECK_CONDITION; | |
700 | return; | |
701 | ||
702 | /* abort processing: the bulk-only transport requires a reset | |
703 | * following an abort */ | |
704 | Handle_Abort: | |
705 | srb->result = DID_ABORT << 16; | |
706 | ||
707 | /* permit the reset transfer to take place */ | |
7e4d6c38 | 708 | clear_bit(US_FLIDX_ABORTING, &us->dflags); |
1da177e4 LT |
709 | /* Need reset here */ |
710 | } | |
711 | ||
712 | #ifdef CONFIG_USB_STORAGE_DEBUG | |
713 | static void isd200_log_config( struct isd200_info* info ) | |
714 | { | |
715 | US_DEBUGP(" Event Notification: 0x%x\n", | |
716 | info->ConfigData.EventNotification); | |
717 | US_DEBUGP(" External Clock: 0x%x\n", | |
718 | info->ConfigData.ExternalClock); | |
719 | US_DEBUGP(" ATA Init Timeout: 0x%x\n", | |
720 | info->ConfigData.ATAInitTimeout); | |
721 | US_DEBUGP(" ATAPI Command Block Size: 0x%x\n", | |
722 | (info->ConfigData.ATAConfig & ATACFG_BLOCKSIZE) >> 6); | |
723 | US_DEBUGP(" Master/Slave Selection: 0x%x\n", | |
724 | info->ConfigData.ATAConfig & ATACFG_MASTER); | |
725 | US_DEBUGP(" ATAPI Reset: 0x%x\n", | |
726 | info->ConfigData.ATAConfig & ATACFG_ATAPI_RESET); | |
727 | US_DEBUGP(" ATA Timing: 0x%x\n", | |
728 | info->ConfigData.ATAConfig & ATACFG_TIMING); | |
729 | US_DEBUGP(" ATA Major Command: 0x%x\n", | |
730 | info->ConfigData.ATAMajorCommand); | |
731 | US_DEBUGP(" ATA Minor Command: 0x%x\n", | |
732 | info->ConfigData.ATAMinorCommand); | |
733 | US_DEBUGP(" Init Status: 0x%x\n", | |
734 | info->ConfigData.ATAExtraConfig & ATACFGE_INIT_STATUS); | |
735 | US_DEBUGP(" Config Descriptor 2: 0x%x\n", | |
736 | info->ConfigData.ATAExtraConfig & ATACFGE_CONF_DESC2); | |
737 | US_DEBUGP(" Skip Device Boot: 0x%x\n", | |
738 | info->ConfigData.ATAExtraConfig & ATACFGE_SKIP_BOOT); | |
739 | US_DEBUGP(" ATA 3 State Supsend: 0x%x\n", | |
740 | info->ConfigData.ATAExtraConfig & ATACFGE_STATE_SUSPEND); | |
741 | US_DEBUGP(" Descriptor Override: 0x%x\n", | |
742 | info->ConfigData.ATAExtraConfig & ATACFGE_DESC_OVERRIDE); | |
743 | US_DEBUGP(" Last LUN Identifier: 0x%x\n", | |
744 | info->ConfigData.ATAExtraConfig & ATACFGE_LAST_LUN); | |
745 | US_DEBUGP(" SRST Enable: 0x%x\n", | |
746 | info->ConfigData.ATAExtraConfig & CFG_CAPABILITY_SRST); | |
747 | } | |
748 | #endif | |
749 | ||
750 | /************************************************************************** | |
751 | * isd200_write_config | |
752 | * | |
753 | * Write the ISD200 Configuration data | |
754 | * | |
755 | * RETURNS: | |
756 | * ISD status code | |
757 | */ | |
758 | static int isd200_write_config( struct us_data *us ) | |
759 | { | |
760 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
761 | int retStatus = ISD200_GOOD; | |
762 | int result; | |
763 | ||
764 | #ifdef CONFIG_USB_STORAGE_DEBUG | |
765 | US_DEBUGP("Entering isd200_write_config\n"); | |
766 | US_DEBUGP(" Writing the following ISD200 Config Data:\n"); | |
767 | isd200_log_config(info); | |
768 | #endif | |
769 | ||
770 | /* let's send the command via the control pipe */ | |
771 | result = usb_stor_ctrl_transfer( | |
772 | us, | |
773 | us->send_ctrl_pipe, | |
774 | 0x01, | |
775 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, | |
776 | 0x0000, | |
777 | 0x0002, | |
778 | (void *) &info->ConfigData, | |
779 | sizeof(info->ConfigData)); | |
780 | ||
781 | if (result >= 0) { | |
782 | US_DEBUGP(" ISD200 Config Data was written successfully\n"); | |
783 | } else { | |
784 | US_DEBUGP(" Request to write ISD200 Config Data failed!\n"); | |
785 | retStatus = ISD200_ERROR; | |
786 | } | |
787 | ||
788 | US_DEBUGP("Leaving isd200_write_config %08X\n", retStatus); | |
789 | return retStatus; | |
790 | } | |
791 | ||
792 | ||
793 | /************************************************************************** | |
794 | * isd200_read_config | |
795 | * | |
796 | * Reads the ISD200 Configuration data | |
797 | * | |
798 | * RETURNS: | |
799 | * ISD status code | |
800 | */ | |
801 | static int isd200_read_config( struct us_data *us ) | |
802 | { | |
803 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
804 | int retStatus = ISD200_GOOD; | |
805 | int result; | |
806 | ||
807 | US_DEBUGP("Entering isd200_read_config\n"); | |
808 | ||
809 | /* read the configuration information from ISD200. Use this to */ | |
810 | /* determine what the special ATA CDB bytes are. */ | |
811 | ||
812 | result = usb_stor_ctrl_transfer( | |
813 | us, | |
814 | us->recv_ctrl_pipe, | |
815 | 0x02, | |
816 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, | |
817 | 0x0000, | |
818 | 0x0002, | |
819 | (void *) &info->ConfigData, | |
820 | sizeof(info->ConfigData)); | |
821 | ||
822 | ||
823 | if (result >= 0) { | |
824 | US_DEBUGP(" Retrieved the following ISD200 Config Data:\n"); | |
825 | #ifdef CONFIG_USB_STORAGE_DEBUG | |
826 | isd200_log_config(info); | |
827 | #endif | |
828 | } else { | |
829 | US_DEBUGP(" Request to get ISD200 Config Data failed!\n"); | |
830 | retStatus = ISD200_ERROR; | |
831 | } | |
832 | ||
833 | US_DEBUGP("Leaving isd200_read_config %08X\n", retStatus); | |
834 | return retStatus; | |
835 | } | |
836 | ||
837 | ||
838 | /************************************************************************** | |
839 | * isd200_atapi_soft_reset | |
840 | * | |
841 | * Perform an Atapi Soft Reset on the device | |
842 | * | |
843 | * RETURNS: | |
844 | * NT status code | |
845 | */ | |
846 | static int isd200_atapi_soft_reset( struct us_data *us ) | |
847 | { | |
848 | int retStatus = ISD200_GOOD; | |
849 | int transferStatus; | |
850 | ||
851 | US_DEBUGP("Entering isd200_atapi_soft_reset\n"); | |
852 | ||
853 | transferStatus = isd200_action( us, ACTION_SOFT_RESET, NULL, 0 ); | |
854 | if (transferStatus != ISD200_TRANSPORT_GOOD) { | |
855 | US_DEBUGP(" Error issuing Atapi Soft Reset\n"); | |
856 | retStatus = ISD200_ERROR; | |
857 | } | |
858 | ||
859 | US_DEBUGP("Leaving isd200_atapi_soft_reset %08X\n", retStatus); | |
860 | return retStatus; | |
861 | } | |
862 | ||
863 | ||
864 | /************************************************************************** | |
865 | * isd200_srst | |
866 | * | |
867 | * Perform an SRST on the device | |
868 | * | |
869 | * RETURNS: | |
870 | * ISD status code | |
871 | */ | |
872 | static int isd200_srst( struct us_data *us ) | |
873 | { | |
874 | int retStatus = ISD200_GOOD; | |
875 | int transferStatus; | |
876 | ||
877 | US_DEBUGP("Entering isd200_SRST\n"); | |
878 | ||
879 | transferStatus = isd200_action( us, ACTION_RESET, NULL, 0 ); | |
880 | ||
881 | /* check to see if this request failed */ | |
882 | if (transferStatus != ISD200_TRANSPORT_GOOD) { | |
883 | US_DEBUGP(" Error issuing SRST\n"); | |
884 | retStatus = ISD200_ERROR; | |
885 | } else { | |
886 | /* delay 10ms to give the drive a chance to see it */ | |
887 | msleep(10); | |
888 | ||
889 | transferStatus = isd200_action( us, ACTION_REENABLE, NULL, 0 ); | |
890 | if (transferStatus != ISD200_TRANSPORT_GOOD) { | |
891 | US_DEBUGP(" Error taking drive out of reset\n"); | |
892 | retStatus = ISD200_ERROR; | |
893 | } else { | |
894 | /* delay 50ms to give the drive a chance to recover after SRST */ | |
895 | msleep(50); | |
896 | } | |
897 | } | |
898 | ||
899 | US_DEBUGP("Leaving isd200_srst %08X\n", retStatus); | |
900 | return retStatus; | |
901 | } | |
902 | ||
903 | ||
904 | /************************************************************************** | |
905 | * isd200_try_enum | |
906 | * | |
907 | * Helper function for isd200_manual_enum(). Does ENUM and READ_STATUS | |
908 | * and tries to analyze the status registers | |
909 | * | |
910 | * RETURNS: | |
911 | * ISD status code | |
912 | */ | |
913 | static int isd200_try_enum(struct us_data *us, unsigned char master_slave, | |
914 | int detect ) | |
915 | { | |
916 | int status = ISD200_GOOD; | |
917 | unsigned long endTime; | |
918 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
919 | unsigned char *regs = info->RegsBuf; | |
920 | int recheckAsMaster = 0; | |
921 | ||
922 | if ( detect ) | |
923 | endTime = jiffies + ISD200_ENUM_DETECT_TIMEOUT * HZ; | |
924 | else | |
925 | endTime = jiffies + ISD200_ENUM_BSY_TIMEOUT * HZ; | |
926 | ||
927 | /* loop until we detect !BSY or timeout */ | |
928 | while(1) { | |
929 | #ifdef CONFIG_USB_STORAGE_DEBUG | |
930 | char* mstr = master_slave == ATA_ADDRESS_DEVHEAD_STD ? | |
931 | "Master" : "Slave"; | |
932 | #endif | |
933 | ||
934 | status = isd200_action( us, ACTION_ENUM, NULL, master_slave ); | |
935 | if ( status != ISD200_GOOD ) | |
936 | break; | |
937 | ||
938 | status = isd200_action( us, ACTION_READ_STATUS, | |
939 | regs, 8 ); | |
940 | if ( status != ISD200_GOOD ) | |
941 | break; | |
942 | ||
943 | if (!detect) { | |
fcd3ec69 | 944 | if (regs[ATA_REG_STATUS_OFFSET] & ATA_BUSY) { |
1da177e4 LT |
945 | US_DEBUGP(" %s status is still BSY, try again...\n",mstr); |
946 | } else { | |
947 | US_DEBUGP(" %s status !BSY, continue with next operation\n",mstr); | |
948 | break; | |
949 | } | |
950 | } | |
fcd3ec69 BZ |
951 | /* check for ATA_BUSY and */ |
952 | /* ATA_DF (workaround ATA Zip drive) and */ | |
953 | /* ATA_ERR (workaround for Archos CD-ROM) */ | |
c74e8095 | 954 | else if (regs[ATA_REG_STATUS_OFFSET] & |
fcd3ec69 | 955 | (ATA_BUSY | ATA_DF | ATA_ERR)) { |
1da177e4 LT |
956 | US_DEBUGP(" Status indicates it is not ready, try again...\n"); |
957 | } | |
958 | /* check for DRDY, ATA devices set DRDY after SRST */ | |
fcd3ec69 | 959 | else if (regs[ATA_REG_STATUS_OFFSET] & ATA_DRDY) { |
1da177e4 LT |
960 | US_DEBUGP(" Identified ATA device\n"); |
961 | info->DeviceFlags |= DF_ATA_DEVICE; | |
962 | info->DeviceHead = master_slave; | |
963 | break; | |
964 | } | |
965 | /* check Cylinder High/Low to | |
966 | determine if it is an ATAPI device | |
967 | */ | |
c74e8095 BZ |
968 | else if (regs[ATA_REG_HCYL_OFFSET] == 0xEB && |
969 | regs[ATA_REG_LCYL_OFFSET] == 0x14) { | |
1da177e4 LT |
970 | /* It seems that the RICOH |
971 | MP6200A CD/RW drive will | |
972 | report itself okay as a | |
973 | slave when it is really a | |
974 | master. So this check again | |
975 | as a master device just to | |
976 | make sure it doesn't report | |
977 | itself okay as a master also | |
978 | */ | |
979 | if ((master_slave & ATA_ADDRESS_DEVHEAD_SLAVE) && | |
980 | !recheckAsMaster) { | |
981 | US_DEBUGP(" Identified ATAPI device as slave. Rechecking again as master\n"); | |
982 | recheckAsMaster = 1; | |
983 | master_slave = ATA_ADDRESS_DEVHEAD_STD; | |
984 | } else { | |
985 | US_DEBUGP(" Identified ATAPI device\n"); | |
986 | info->DeviceHead = master_slave; | |
987 | ||
988 | status = isd200_atapi_soft_reset(us); | |
989 | break; | |
990 | } | |
991 | } else { | |
992 | US_DEBUGP(" Not ATA, not ATAPI. Weird.\n"); | |
993 | break; | |
994 | } | |
995 | ||
996 | /* check for timeout on this request */ | |
997 | if (time_after_eq(jiffies, endTime)) { | |
998 | if (!detect) | |
999 | US_DEBUGP(" BSY check timeout, just continue with next operation...\n"); | |
1000 | else | |
1001 | US_DEBUGP(" Device detect timeout!\n"); | |
1002 | break; | |
1003 | } | |
1004 | } | |
1005 | ||
1006 | return status; | |
1007 | } | |
1008 | ||
1009 | /************************************************************************** | |
1010 | * isd200_manual_enum | |
1011 | * | |
1012 | * Determines if the drive attached is an ATA or ATAPI and if it is a | |
1013 | * master or slave. | |
1014 | * | |
1015 | * RETURNS: | |
1016 | * ISD status code | |
1017 | */ | |
1018 | static int isd200_manual_enum(struct us_data *us) | |
1019 | { | |
1020 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
1021 | int retStatus = ISD200_GOOD; | |
1022 | ||
1023 | US_DEBUGP("Entering isd200_manual_enum\n"); | |
1024 | ||
1025 | retStatus = isd200_read_config(us); | |
1026 | if (retStatus == ISD200_GOOD) { | |
1027 | int isslave; | |
1028 | /* master or slave? */ | |
1029 | retStatus = isd200_try_enum( us, ATA_ADDRESS_DEVHEAD_STD, 0); | |
1030 | if (retStatus == ISD200_GOOD) | |
1031 | retStatus = isd200_try_enum( us, ATA_ADDRESS_DEVHEAD_SLAVE, 0); | |
1032 | ||
1033 | if (retStatus == ISD200_GOOD) { | |
1034 | retStatus = isd200_srst(us); | |
1035 | if (retStatus == ISD200_GOOD) | |
1036 | /* ata or atapi? */ | |
1037 | retStatus = isd200_try_enum( us, ATA_ADDRESS_DEVHEAD_STD, 1); | |
1038 | } | |
1039 | ||
1040 | isslave = (info->DeviceHead & ATA_ADDRESS_DEVHEAD_SLAVE) ? 1 : 0; | |
1041 | if (!(info->ConfigData.ATAConfig & ATACFG_MASTER)) { | |
1042 | US_DEBUGP(" Setting Master/Slave selection to %d\n", isslave); | |
1043 | info->ConfigData.ATAConfig &= 0x3f; | |
1044 | info->ConfigData.ATAConfig |= (isslave<<6); | |
1045 | retStatus = isd200_write_config(us); | |
1046 | } | |
1047 | } | |
1048 | ||
1049 | US_DEBUGP("Leaving isd200_manual_enum %08X\n", retStatus); | |
1050 | return(retStatus); | |
1051 | } | |
1052 | ||
d8881cda | 1053 | static void isd200_fix_driveid(u16 *id) |
3794ade5 AC |
1054 | { |
1055 | #ifndef __LITTLE_ENDIAN | |
1056 | # ifdef __BIG_ENDIAN | |
1057 | int i; | |
d8881cda BZ |
1058 | |
1059 | for (i = 0; i < ATA_ID_WORDS; i++) | |
1060 | id[i] = __le16_to_cpu(id[i]); | |
3794ade5 AC |
1061 | # else |
1062 | # error "Please fix <asm/byteorder.h>" | |
1063 | # endif | |
1064 | #endif | |
1065 | } | |
1066 | ||
d8881cda BZ |
1067 | static void isd200_dump_driveid(u16 *id) |
1068 | { | |
1069 | US_DEBUGP(" Identify Data Structure:\n"); | |
1070 | US_DEBUGP(" config = 0x%x\n", id[ATA_ID_CONFIG]); | |
1071 | US_DEBUGP(" cyls = 0x%x\n", id[ATA_ID_CYLS]); | |
1072 | US_DEBUGP(" heads = 0x%x\n", id[ATA_ID_HEADS]); | |
1073 | US_DEBUGP(" track_bytes = 0x%x\n", id[4]); | |
1074 | US_DEBUGP(" sector_bytes = 0x%x\n", id[5]); | |
1075 | US_DEBUGP(" sectors = 0x%x\n", id[ATA_ID_SECTORS]); | |
1076 | US_DEBUGP(" serial_no[0] = 0x%x\n", *(char *)&id[ATA_ID_SERNO]); | |
1077 | US_DEBUGP(" buf_type = 0x%x\n", id[20]); | |
1078 | US_DEBUGP(" buf_size = 0x%x\n", id[ATA_ID_BUF_SIZE]); | |
1079 | US_DEBUGP(" ecc_bytes = 0x%x\n", id[22]); | |
1080 | US_DEBUGP(" fw_rev[0] = 0x%x\n", *(char *)&id[ATA_ID_FW_REV]); | |
1081 | US_DEBUGP(" model[0] = 0x%x\n", *(char *)&id[ATA_ID_PROD]); | |
1082 | US_DEBUGP(" max_multsect = 0x%x\n", id[ATA_ID_MAX_MULTSECT] & 0xff); | |
1083 | US_DEBUGP(" dword_io = 0x%x\n", id[ATA_ID_DWORD_IO]); | |
1084 | US_DEBUGP(" capability = 0x%x\n", id[ATA_ID_CAPABILITY] >> 8); | |
1085 | US_DEBUGP(" tPIO = 0x%x\n", id[ATA_ID_OLD_PIO_MODES] >> 8); | |
1086 | US_DEBUGP(" tDMA = 0x%x\n", id[ATA_ID_OLD_DMA_MODES] >> 8); | |
1087 | US_DEBUGP(" field_valid = 0x%x\n", id[ATA_ID_FIELD_VALID]); | |
1088 | US_DEBUGP(" cur_cyls = 0x%x\n", id[ATA_ID_CUR_CYLS]); | |
1089 | US_DEBUGP(" cur_heads = 0x%x\n", id[ATA_ID_CUR_HEADS]); | |
1090 | US_DEBUGP(" cur_sectors = 0x%x\n", id[ATA_ID_CUR_SECTORS]); | |
1091 | US_DEBUGP(" cur_capacity = 0x%x\n", ata_id_u32(id, 57)); | |
1092 | US_DEBUGP(" multsect = 0x%x\n", id[ATA_ID_MULTSECT] & 0xff); | |
1093 | US_DEBUGP(" lba_capacity = 0x%x\n", ata_id_u32(id, ATA_ID_LBA_CAPACITY)); | |
1094 | US_DEBUGP(" command_set_1 = 0x%x\n", id[ATA_ID_COMMAND_SET_1]); | |
1095 | US_DEBUGP(" command_set_2 = 0x%x\n", id[ATA_ID_COMMAND_SET_2]); | |
1096 | } | |
1da177e4 LT |
1097 | |
1098 | /************************************************************************** | |
1099 | * isd200_get_inquiry_data | |
1100 | * | |
1101 | * Get inquiry data | |
1102 | * | |
1103 | * RETURNS: | |
1104 | * ISD status code | |
1105 | */ | |
1106 | static int isd200_get_inquiry_data( struct us_data *us ) | |
1107 | { | |
1108 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
1109 | int retStatus = ISD200_GOOD; | |
d8881cda | 1110 | u16 *id = info->id; |
1da177e4 LT |
1111 | |
1112 | US_DEBUGP("Entering isd200_get_inquiry_data\n"); | |
1113 | ||
1114 | /* set default to Master */ | |
1115 | info->DeviceHead = ATA_ADDRESS_DEVHEAD_STD; | |
1116 | ||
1117 | /* attempt to manually enumerate this device */ | |
1118 | retStatus = isd200_manual_enum(us); | |
1119 | if (retStatus == ISD200_GOOD) { | |
1120 | int transferStatus; | |
1121 | ||
1122 | /* check for an ATA device */ | |
1123 | if (info->DeviceFlags & DF_ATA_DEVICE) { | |
1124 | /* this must be an ATA device */ | |
1125 | /* perform an ATA Command Identify */ | |
1126 | transferStatus = isd200_action( us, ACTION_IDENTIFY, | |
d8881cda | 1127 | id, ATA_ID_WORDS * 2); |
1da177e4 LT |
1128 | if (transferStatus != ISD200_TRANSPORT_GOOD) { |
1129 | /* Error issuing ATA Command Identify */ | |
1130 | US_DEBUGP(" Error issuing ATA Command Identify\n"); | |
1131 | retStatus = ISD200_ERROR; | |
1132 | } else { | |
1133 | /* ATA Command Identify successful */ | |
1134 | int i; | |
1135 | __be16 *src; | |
1136 | __u16 *dest; | |
1da177e4 | 1137 | |
d8881cda BZ |
1138 | isd200_fix_driveid(id); |
1139 | isd200_dump_driveid(id); | |
1da177e4 LT |
1140 | |
1141 | memset(&info->InquiryData, 0, sizeof(info->InquiryData)); | |
1142 | ||
1143 | /* Standard IDE interface only supports disks */ | |
1144 | info->InquiryData.DeviceType = DIRECT_ACCESS_DEVICE; | |
1145 | ||
1146 | /* The length must be at least 36 (5 + 31) */ | |
1147 | info->InquiryData.AdditionalLength = 0x1F; | |
1148 | ||
d8881cda | 1149 | if (id[ATA_ID_COMMAND_SET_1] & COMMANDSET_MEDIA_STATUS) { |
1da177e4 LT |
1150 | /* set the removable bit */ |
1151 | info->InquiryData.DeviceTypeModifier = DEVICE_REMOVABLE; | |
1152 | info->DeviceFlags |= DF_REMOVABLE_MEDIA; | |
1153 | } | |
1154 | ||
1155 | /* Fill in vendor identification fields */ | |
d8881cda | 1156 | src = (__be16 *)&id[ATA_ID_PROD]; |
1da177e4 LT |
1157 | dest = (__u16*)info->InquiryData.VendorId; |
1158 | for (i=0;i<4;i++) | |
1159 | dest[i] = be16_to_cpu(src[i]); | |
1160 | ||
d8881cda | 1161 | src = (__be16 *)&id[ATA_ID_PROD + 8/2]; |
1da177e4 LT |
1162 | dest = (__u16*)info->InquiryData.ProductId; |
1163 | for (i=0;i<8;i++) | |
1164 | dest[i] = be16_to_cpu(src[i]); | |
1165 | ||
d8881cda | 1166 | src = (__be16 *)&id[ATA_ID_FW_REV]; |
1da177e4 LT |
1167 | dest = (__u16*)info->InquiryData.ProductRevisionLevel; |
1168 | for (i=0;i<2;i++) | |
1169 | dest[i] = be16_to_cpu(src[i]); | |
1170 | ||
1171 | /* determine if it supports Media Status Notification */ | |
d8881cda | 1172 | if (id[ATA_ID_COMMAND_SET_2] & COMMANDSET_MEDIA_STATUS) { |
1da177e4 LT |
1173 | US_DEBUGP(" Device supports Media Status Notification\n"); |
1174 | ||
1175 | /* Indicate that it is enabled, even though it is not | |
1176 | * This allows the lock/unlock of the media to work | |
1177 | * correctly. | |
1178 | */ | |
1179 | info->DeviceFlags |= DF_MEDIA_STATUS_ENABLED; | |
1180 | } | |
1181 | else | |
1182 | info->DeviceFlags &= ~DF_MEDIA_STATUS_ENABLED; | |
1183 | ||
1184 | } | |
1185 | } else { | |
1186 | /* | |
1187 | * this must be an ATAPI device | |
1188 | * use an ATAPI protocol (Transparent SCSI) | |
1189 | */ | |
1190 | us->protocol_name = "Transparent SCSI"; | |
1191 | us->proto_handler = usb_stor_transparent_scsi_command; | |
1192 | ||
1193 | US_DEBUGP("Protocol changed to: %s\n", us->protocol_name); | |
1194 | ||
1195 | /* Free driver structure */ | |
1196 | us->extra_destructor(info); | |
ba2ef3b3 | 1197 | kfree(info); |
1da177e4 LT |
1198 | us->extra = NULL; |
1199 | us->extra_destructor = NULL; | |
1200 | } | |
1201 | } | |
1202 | ||
1203 | US_DEBUGP("Leaving isd200_get_inquiry_data %08X\n", retStatus); | |
1204 | ||
1205 | return(retStatus); | |
1206 | } | |
1207 | ||
1da177e4 LT |
1208 | /************************************************************************** |
1209 | * isd200_scsi_to_ata | |
1210 | * | |
1211 | * Translate SCSI commands to ATA commands. | |
1212 | * | |
1213 | * RETURNS: | |
1214 | * 1 if the command needs to be sent to the transport layer | |
1215 | * 0 otherwise | |
1216 | */ | |
1217 | static int isd200_scsi_to_ata(struct scsi_cmnd *srb, struct us_data *us, | |
1218 | union ata_cdb * ataCdb) | |
1219 | { | |
1220 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
d8881cda | 1221 | u16 *id = info->id; |
1da177e4 LT |
1222 | int sendToTransport = 1; |
1223 | unsigned char sectnum, head; | |
1224 | unsigned short cylinder; | |
1225 | unsigned long lba; | |
1226 | unsigned long blockCount; | |
1227 | unsigned char senseData[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; | |
1228 | ||
1229 | memset(ataCdb, 0, sizeof(union ata_cdb)); | |
1230 | ||
1231 | /* SCSI Command */ | |
1232 | switch (srb->cmnd[0]) { | |
1233 | case INQUIRY: | |
1234 | US_DEBUGP(" ATA OUT - INQUIRY\n"); | |
1235 | ||
1236 | /* copy InquiryData */ | |
1237 | usb_stor_set_xfer_buf((unsigned char *) &info->InquiryData, | |
1238 | sizeof(info->InquiryData), srb); | |
1239 | srb->result = SAM_STAT_GOOD; | |
1240 | sendToTransport = 0; | |
1241 | break; | |
1242 | ||
1243 | case MODE_SENSE: | |
1244 | US_DEBUGP(" ATA OUT - SCSIOP_MODE_SENSE\n"); | |
1245 | ||
1246 | /* Initialize the return buffer */ | |
1247 | usb_stor_set_xfer_buf(senseData, sizeof(senseData), srb); | |
1248 | ||
1249 | if (info->DeviceFlags & DF_MEDIA_STATUS_ENABLED) | |
1250 | { | |
1251 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1252 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1253 | ataCdb->generic.TransferBlockSize = 1; | |
1254 | ataCdb->generic.RegisterSelect = REG_COMMAND; | |
1255 | ataCdb->write.CommandByte = ATA_COMMAND_GET_MEDIA_STATUS; | |
48c23d3e | 1256 | isd200_srb_set_bufflen(srb, 0); |
1da177e4 LT |
1257 | } else { |
1258 | US_DEBUGP(" Media Status not supported, just report okay\n"); | |
1259 | srb->result = SAM_STAT_GOOD; | |
1260 | sendToTransport = 0; | |
1261 | } | |
1262 | break; | |
1263 | ||
1264 | case TEST_UNIT_READY: | |
1265 | US_DEBUGP(" ATA OUT - SCSIOP_TEST_UNIT_READY\n"); | |
1266 | ||
1267 | if (info->DeviceFlags & DF_MEDIA_STATUS_ENABLED) | |
1268 | { | |
1269 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1270 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1271 | ataCdb->generic.TransferBlockSize = 1; | |
1272 | ataCdb->generic.RegisterSelect = REG_COMMAND; | |
1273 | ataCdb->write.CommandByte = ATA_COMMAND_GET_MEDIA_STATUS; | |
48c23d3e | 1274 | isd200_srb_set_bufflen(srb, 0); |
1da177e4 LT |
1275 | } else { |
1276 | US_DEBUGP(" Media Status not supported, just report okay\n"); | |
1277 | srb->result = SAM_STAT_GOOD; | |
1278 | sendToTransport = 0; | |
1279 | } | |
1280 | break; | |
1281 | ||
1282 | case READ_CAPACITY: | |
1283 | { | |
1284 | unsigned long capacity; | |
1285 | struct read_capacity_data readCapacityData; | |
1286 | ||
1287 | US_DEBUGP(" ATA OUT - SCSIOP_READ_CAPACITY\n"); | |
1288 | ||
d8881cda BZ |
1289 | if (ata_id_has_lba(id)) |
1290 | capacity = ata_id_u32(id, ATA_ID_LBA_CAPACITY) - 1; | |
1291 | else | |
1292 | capacity = (id[ATA_ID_HEADS] * id[ATA_ID_CYLS] * | |
1293 | id[ATA_ID_SECTORS]) - 1; | |
1294 | ||
1da177e4 LT |
1295 | readCapacityData.LogicalBlockAddress = cpu_to_be32(capacity); |
1296 | readCapacityData.BytesPerBlock = cpu_to_be32(0x200); | |
1297 | ||
1298 | usb_stor_set_xfer_buf((unsigned char *) &readCapacityData, | |
1299 | sizeof(readCapacityData), srb); | |
1300 | srb->result = SAM_STAT_GOOD; | |
1301 | sendToTransport = 0; | |
1302 | } | |
1303 | break; | |
1304 | ||
1305 | case READ_10: | |
1306 | US_DEBUGP(" ATA OUT - SCSIOP_READ\n"); | |
1307 | ||
1308 | lba = be32_to_cpu(*(__be32 *)&srb->cmnd[2]); | |
1309 | blockCount = (unsigned long)srb->cmnd[7]<<8 | (unsigned long)srb->cmnd[8]; | |
1310 | ||
d8881cda | 1311 | if (ata_id_has_lba(id)) { |
1da177e4 LT |
1312 | sectnum = (unsigned char)(lba); |
1313 | cylinder = (unsigned short)(lba>>8); | |
1314 | head = ATA_ADDRESS_DEVHEAD_LBA_MODE | (unsigned char)(lba>>24 & 0x0F); | |
1315 | } else { | |
d8881cda BZ |
1316 | sectnum = (u8)((lba % id[ATA_ID_SECTORS]) + 1); |
1317 | cylinder = (u16)(lba / (id[ATA_ID_SECTORS] * | |
1318 | id[ATA_ID_HEADS])); | |
1319 | head = (u8)((lba / id[ATA_ID_SECTORS]) % | |
1320 | id[ATA_ID_HEADS]); | |
1da177e4 LT |
1321 | } |
1322 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1323 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1324 | ataCdb->generic.TransferBlockSize = 1; | |
1325 | ataCdb->generic.RegisterSelect = | |
1326 | REG_SECTOR_COUNT | REG_SECTOR_NUMBER | | |
1327 | REG_CYLINDER_LOW | REG_CYLINDER_HIGH | | |
1328 | REG_DEVICE_HEAD | REG_COMMAND; | |
1329 | ataCdb->write.SectorCountByte = (unsigned char)blockCount; | |
1330 | ataCdb->write.SectorNumberByte = sectnum; | |
1331 | ataCdb->write.CylinderHighByte = (unsigned char)(cylinder>>8); | |
1332 | ataCdb->write.CylinderLowByte = (unsigned char)cylinder; | |
1333 | ataCdb->write.DeviceHeadByte = (head | ATA_ADDRESS_DEVHEAD_STD); | |
f08f31f7 | 1334 | ataCdb->write.CommandByte = ATA_CMD_PIO_READ; |
1da177e4 LT |
1335 | break; |
1336 | ||
1337 | case WRITE_10: | |
1338 | US_DEBUGP(" ATA OUT - SCSIOP_WRITE\n"); | |
1339 | ||
1340 | lba = be32_to_cpu(*(__be32 *)&srb->cmnd[2]); | |
1341 | blockCount = (unsigned long)srb->cmnd[7]<<8 | (unsigned long)srb->cmnd[8]; | |
1342 | ||
d8881cda | 1343 | if (ata_id_has_lba(id)) { |
1da177e4 LT |
1344 | sectnum = (unsigned char)(lba); |
1345 | cylinder = (unsigned short)(lba>>8); | |
1346 | head = ATA_ADDRESS_DEVHEAD_LBA_MODE | (unsigned char)(lba>>24 & 0x0F); | |
1347 | } else { | |
d8881cda BZ |
1348 | sectnum = (u8)((lba % id[ATA_ID_SECTORS]) + 1); |
1349 | cylinder = (u16)(lba / (id[ATA_ID_SECTORS] * | |
1350 | id[ATA_ID_HEADS])); | |
1351 | head = (u8)((lba / id[ATA_ID_SECTORS]) % | |
1352 | id[ATA_ID_HEADS]); | |
1da177e4 LT |
1353 | } |
1354 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1355 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1356 | ataCdb->generic.TransferBlockSize = 1; | |
1357 | ataCdb->generic.RegisterSelect = | |
1358 | REG_SECTOR_COUNT | REG_SECTOR_NUMBER | | |
1359 | REG_CYLINDER_LOW | REG_CYLINDER_HIGH | | |
1360 | REG_DEVICE_HEAD | REG_COMMAND; | |
1361 | ataCdb->write.SectorCountByte = (unsigned char)blockCount; | |
1362 | ataCdb->write.SectorNumberByte = sectnum; | |
1363 | ataCdb->write.CylinderHighByte = (unsigned char)(cylinder>>8); | |
1364 | ataCdb->write.CylinderLowByte = (unsigned char)cylinder; | |
1365 | ataCdb->write.DeviceHeadByte = (head | ATA_ADDRESS_DEVHEAD_STD); | |
f08f31f7 | 1366 | ataCdb->write.CommandByte = ATA_CMD_PIO_WRITE; |
1da177e4 LT |
1367 | break; |
1368 | ||
1369 | case ALLOW_MEDIUM_REMOVAL: | |
1370 | US_DEBUGP(" ATA OUT - SCSIOP_MEDIUM_REMOVAL\n"); | |
1371 | ||
1372 | if (info->DeviceFlags & DF_REMOVABLE_MEDIA) { | |
1373 | US_DEBUGP(" srb->cmnd[4] = 0x%X\n", srb->cmnd[4]); | |
1374 | ||
1375 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1376 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1377 | ataCdb->generic.TransferBlockSize = 1; | |
1378 | ataCdb->generic.RegisterSelect = REG_COMMAND; | |
1379 | ataCdb->write.CommandByte = (srb->cmnd[4] & 0x1) ? | |
f08f31f7 | 1380 | ATA_CMD_MEDIA_LOCK : ATA_CMD_MEDIA_UNLOCK; |
48c23d3e | 1381 | isd200_srb_set_bufflen(srb, 0); |
1da177e4 LT |
1382 | } else { |
1383 | US_DEBUGP(" Not removeable media, just report okay\n"); | |
1384 | srb->result = SAM_STAT_GOOD; | |
1385 | sendToTransport = 0; | |
1386 | } | |
1387 | break; | |
1388 | ||
1389 | case START_STOP: | |
1390 | US_DEBUGP(" ATA OUT - SCSIOP_START_STOP_UNIT\n"); | |
1391 | US_DEBUGP(" srb->cmnd[4] = 0x%X\n", srb->cmnd[4]); | |
1392 | ||
1393 | if ((srb->cmnd[4] & 0x3) == 0x2) { | |
1394 | US_DEBUGP(" Media Eject\n"); | |
1395 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1396 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1397 | ataCdb->generic.TransferBlockSize = 0; | |
1398 | ataCdb->generic.RegisterSelect = REG_COMMAND; | |
1399 | ataCdb->write.CommandByte = ATA_COMMAND_MEDIA_EJECT; | |
1400 | } else if ((srb->cmnd[4] & 0x3) == 0x1) { | |
1401 | US_DEBUGP(" Get Media Status\n"); | |
1402 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1403 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1404 | ataCdb->generic.TransferBlockSize = 1; | |
1405 | ataCdb->generic.RegisterSelect = REG_COMMAND; | |
1406 | ataCdb->write.CommandByte = ATA_COMMAND_GET_MEDIA_STATUS; | |
48c23d3e | 1407 | isd200_srb_set_bufflen(srb, 0); |
1da177e4 LT |
1408 | } else { |
1409 | US_DEBUGP(" Nothing to do, just report okay\n"); | |
1410 | srb->result = SAM_STAT_GOOD; | |
1411 | sendToTransport = 0; | |
1412 | } | |
1413 | break; | |
1414 | ||
1415 | default: | |
1416 | US_DEBUGP("Unsupported SCSI command - 0x%X\n", srb->cmnd[0]); | |
1417 | srb->result = DID_ERROR << 16; | |
1418 | sendToTransport = 0; | |
1419 | break; | |
1420 | } | |
1421 | ||
1422 | return(sendToTransport); | |
1423 | } | |
1424 | ||
1425 | ||
1426 | /************************************************************************** | |
1427 | * isd200_free_info | |
1428 | * | |
1429 | * Frees the driver structure. | |
1430 | */ | |
1431 | static void isd200_free_info_ptrs(void *info_) | |
1432 | { | |
1433 | struct isd200_info *info = (struct isd200_info *) info_; | |
1434 | ||
1435 | if (info) { | |
1436 | kfree(info->id); | |
1437 | kfree(info->RegsBuf); | |
e92e63aa | 1438 | kfree(info->srb.sense_buffer); |
1da177e4 LT |
1439 | } |
1440 | } | |
1441 | ||
1442 | /************************************************************************** | |
1443 | * isd200_init_info | |
1444 | * | |
1445 | * Allocates (if necessary) and initializes the driver structure. | |
1446 | * | |
1447 | * RETURNS: | |
1448 | * ISD status code | |
1449 | */ | |
1450 | static int isd200_init_info(struct us_data *us) | |
1451 | { | |
1452 | int retStatus = ISD200_GOOD; | |
1453 | struct isd200_info *info; | |
1454 | ||
a5cc8049 | 1455 | info = kzalloc(sizeof(struct isd200_info), GFP_KERNEL); |
1da177e4 LT |
1456 | if (!info) |
1457 | retStatus = ISD200_ERROR; | |
1458 | else { | |
d8881cda | 1459 | info->id = kzalloc(ATA_ID_WORDS * 2, GFP_KERNEL); |
5b2750d5 | 1460 | info->RegsBuf = kmalloc(sizeof(info->ATARegs), GFP_KERNEL); |
e92e63aa BH |
1461 | info->srb.sense_buffer = |
1462 | kmalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL); | |
1463 | if (!info->id || !info->RegsBuf || !info->srb.sense_buffer) { | |
1da177e4 LT |
1464 | isd200_free_info_ptrs(info); |
1465 | kfree(info); | |
1466 | retStatus = ISD200_ERROR; | |
887c2560 | 1467 | } |
1da177e4 LT |
1468 | } |
1469 | ||
1470 | if (retStatus == ISD200_GOOD) { | |
1471 | us->extra = info; | |
1472 | us->extra_destructor = isd200_free_info_ptrs; | |
1473 | } else | |
1474 | US_DEBUGP("ERROR - kmalloc failure\n"); | |
1475 | ||
80b6ca48 | 1476 | return retStatus; |
1da177e4 LT |
1477 | } |
1478 | ||
1479 | /************************************************************************** | |
1480 | * Initialization for the ISD200 | |
1481 | */ | |
1482 | ||
32d5493e | 1483 | static int isd200_Initialization(struct us_data *us) |
1da177e4 LT |
1484 | { |
1485 | US_DEBUGP("ISD200 Initialization...\n"); | |
1486 | ||
1487 | /* Initialize ISD200 info struct */ | |
1488 | ||
1489 | if (isd200_init_info(us) == ISD200_ERROR) { | |
1490 | US_DEBUGP("ERROR Initializing ISD200 Info struct\n"); | |
1491 | } else { | |
1492 | /* Get device specific data */ | |
1493 | ||
1494 | if (isd200_get_inquiry_data(us) != ISD200_GOOD) | |
1495 | US_DEBUGP("ISD200 Initialization Failure\n"); | |
1496 | else | |
1497 | US_DEBUGP("ISD200 Initialization complete\n"); | |
1498 | } | |
1499 | ||
1500 | return 0; | |
1501 | } | |
1502 | ||
1503 | ||
1504 | /************************************************************************** | |
1505 | * Protocol and Transport for the ISD200 ASIC | |
1506 | * | |
1507 | * This protocol and transport are for ATA devices connected to an ISD200 | |
25985edc | 1508 | * ASIC. An ATAPI device that is connected as a slave device will be |
1da177e4 LT |
1509 | * detected in the driver initialization function and the protocol will |
1510 | * be changed to an ATAPI protocol (Transparent SCSI). | |
1511 | * | |
1512 | */ | |
1513 | ||
32d5493e | 1514 | static void isd200_ata_command(struct scsi_cmnd *srb, struct us_data *us) |
1da177e4 | 1515 | { |
48c23d3e | 1516 | int sendToTransport = 1, orig_bufflen; |
1da177e4 LT |
1517 | union ata_cdb ataCdb; |
1518 | ||
1519 | /* Make sure driver was initialized */ | |
1520 | ||
1521 | if (us->extra == NULL) | |
1522 | US_DEBUGP("ERROR Driver not initialized\n"); | |
1523 | ||
48c23d3e BH |
1524 | scsi_set_resid(srb, 0); |
1525 | /* scsi_bufflen might change in protocol translation to ata */ | |
1526 | orig_bufflen = scsi_bufflen(srb); | |
1da177e4 LT |
1527 | sendToTransport = isd200_scsi_to_ata(srb, us, &ataCdb); |
1528 | ||
1529 | /* send the command to the transport layer */ | |
1530 | if (sendToTransport) | |
1531 | isd200_invoke_transport(us, srb, &ataCdb); | |
48c23d3e BH |
1532 | |
1533 | isd200_srb_set_bufflen(srb, orig_bufflen); | |
1da177e4 | 1534 | } |
32d5493e AS |
1535 | |
1536 | static int isd200_probe(struct usb_interface *intf, | |
1537 | const struct usb_device_id *id) | |
1538 | { | |
1539 | struct us_data *us; | |
1540 | int result; | |
1541 | ||
1542 | result = usb_stor_probe1(&us, intf, id, | |
1543 | (id - isd200_usb_ids) + isd200_unusual_dev_list); | |
1544 | if (result) | |
1545 | return result; | |
1546 | ||
1547 | us->protocol_name = "ISD200 ATA/ATAPI"; | |
1548 | us->proto_handler = isd200_ata_command; | |
1549 | ||
1550 | result = usb_stor_probe2(us); | |
1551 | return result; | |
1552 | } | |
1553 | ||
1554 | static struct usb_driver isd200_driver = { | |
1555 | .name = "ums-isd200", | |
1556 | .probe = isd200_probe, | |
1557 | .disconnect = usb_stor_disconnect, | |
1558 | .suspend = usb_stor_suspend, | |
1559 | .resume = usb_stor_resume, | |
1560 | .reset_resume = usb_stor_reset_resume, | |
1561 | .pre_reset = usb_stor_pre_reset, | |
1562 | .post_reset = usb_stor_post_reset, | |
1563 | .id_table = isd200_usb_ids, | |
1564 | .soft_unbind = 1, | |
e73b2db6 | 1565 | .no_dynamic_id = 1, |
32d5493e AS |
1566 | }; |
1567 | ||
65db4305 | 1568 | module_usb_driver(isd200_driver); |