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1da177e4 LT |
1 | /* Transport & Protocol Driver for In-System Design, Inc. ISD200 ASIC |
2 | * | |
3 | * $Id: isd200.c,v 1.16 2002/04/22 03:39:43 mdharm Exp $ | |
4 | * | |
5 | * Current development and maintenance: | |
96de0e25 | 6 | * (C) 2001-2002 Björn Stenberg (bjorn@haxx.se) |
1da177e4 LT |
7 | * |
8 | * Developed with the assistance of: | |
9 | * (C) 2002 Alan Stern <stern@rowland.org> | |
10 | * | |
11 | * Initial work: | |
12 | * (C) 2000 In-System Design, Inc. (support@in-system.com) | |
13 | * | |
14 | * The ISD200 ASIC does not natively support ATA devices. The chip | |
15 | * does implement an interface, the ATA Command Block (ATACB) which provides | |
16 | * a means of passing ATA commands and ATA register accesses to a device. | |
17 | * | |
18 | * This program is free software; you can redistribute it and/or modify it | |
19 | * under the terms of the GNU General Public License as published by the | |
20 | * Free Software Foundation; either version 2, or (at your option) any | |
21 | * later version. | |
22 | * | |
23 | * This program is distributed in the hope that it will be useful, but | |
24 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
25 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
26 | * General Public License for more details. | |
27 | * | |
28 | * You should have received a copy of the GNU General Public License along | |
29 | * with this program; if not, write to the Free Software Foundation, Inc., | |
30 | * 675 Mass Ave, Cambridge, MA 02139, USA. | |
31 | * | |
32 | * History: | |
33 | * | |
34 | * 2002-10-19: Removed the specialized transfer routines. | |
35 | * (Alan Stern <stern@rowland.harvard.edu>) | |
36 | * 2001-02-24: Removed lots of duplicate code and simplified the structure. | |
37 | * (bjorn@haxx.se) | |
38 | * 2002-01-16: Fixed endianness bug so it works on the ppc arch. | |
39 | * (Luc Saillard <luc@saillard.org>) | |
40 | * 2002-01-17: All bitfields removed. | |
41 | * (bjorn@haxx.se) | |
42 | */ | |
43 | ||
44 | ||
45 | /* Include files */ | |
46 | ||
47 | #include <linux/jiffies.h> | |
48 | #include <linux/errno.h> | |
49 | #include <linux/slab.h> | |
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" | |
62 | #include "isd200.h" | |
63 | ||
64 | ||
65 | /* Timeout defines (in Seconds) */ | |
66 | ||
67 | #define ISD200_ENUM_BSY_TIMEOUT 35 | |
68 | #define ISD200_ENUM_DETECT_TIMEOUT 30 | |
69 | #define ISD200_DEFAULT_TIMEOUT 30 | |
70 | ||
71 | /* device flags */ | |
72 | #define DF_ATA_DEVICE 0x0001 | |
73 | #define DF_MEDIA_STATUS_ENABLED 0x0002 | |
74 | #define DF_REMOVABLE_MEDIA 0x0004 | |
75 | ||
76 | /* capability bit definitions */ | |
77 | #define CAPABILITY_DMA 0x01 | |
78 | #define CAPABILITY_LBA 0x02 | |
79 | ||
80 | /* command_setX bit definitions */ | |
81 | #define COMMANDSET_REMOVABLE 0x02 | |
82 | #define COMMANDSET_MEDIA_STATUS 0x10 | |
83 | ||
84 | /* ATA Vendor Specific defines */ | |
85 | #define ATA_ADDRESS_DEVHEAD_STD 0xa0 | |
86 | #define ATA_ADDRESS_DEVHEAD_LBA_MODE 0x40 | |
87 | #define ATA_ADDRESS_DEVHEAD_SLAVE 0x10 | |
88 | ||
89 | /* Action Select bits */ | |
90 | #define ACTION_SELECT_0 0x01 | |
91 | #define ACTION_SELECT_1 0x02 | |
92 | #define ACTION_SELECT_2 0x04 | |
93 | #define ACTION_SELECT_3 0x08 | |
94 | #define ACTION_SELECT_4 0x10 | |
95 | #define ACTION_SELECT_5 0x20 | |
96 | #define ACTION_SELECT_6 0x40 | |
97 | #define ACTION_SELECT_7 0x80 | |
98 | ||
99 | /* Register Select bits */ | |
100 | #define REG_ALTERNATE_STATUS 0x01 | |
101 | #define REG_DEVICE_CONTROL 0x01 | |
102 | #define REG_ERROR 0x02 | |
103 | #define REG_FEATURES 0x02 | |
104 | #define REG_SECTOR_COUNT 0x04 | |
105 | #define REG_SECTOR_NUMBER 0x08 | |
106 | #define REG_CYLINDER_LOW 0x10 | |
107 | #define REG_CYLINDER_HIGH 0x20 | |
108 | #define REG_DEVICE_HEAD 0x40 | |
109 | #define REG_STATUS 0x80 | |
110 | #define REG_COMMAND 0x80 | |
111 | ||
c74e8095 BZ |
112 | /* ATA registers offset definitions */ |
113 | #define ATA_REG_ERROR_OFFSET 1 | |
114 | #define ATA_REG_LCYL_OFFSET 4 | |
115 | #define ATA_REG_HCYL_OFFSET 5 | |
116 | #define ATA_REG_STATUS_OFFSET 7 | |
117 | ||
1da177e4 LT |
118 | /* ATA error definitions not in <linux/hdreg.h> */ |
119 | #define ATA_ERROR_MEDIA_CHANGE 0x20 | |
120 | ||
121 | /* ATA command definitions not in <linux/hdreg.h> */ | |
122 | #define ATA_COMMAND_GET_MEDIA_STATUS 0xDA | |
123 | #define ATA_COMMAND_MEDIA_EJECT 0xED | |
124 | ||
125 | /* ATA drive control definitions */ | |
126 | #define ATA_DC_DISABLE_INTERRUPTS 0x02 | |
127 | #define ATA_DC_RESET_CONTROLLER 0x04 | |
128 | #define ATA_DC_REENABLE_CONTROLLER 0x00 | |
129 | ||
130 | /* | |
131 | * General purpose return codes | |
132 | */ | |
133 | ||
134 | #define ISD200_ERROR -1 | |
135 | #define ISD200_GOOD 0 | |
136 | ||
137 | /* | |
138 | * Transport return codes | |
139 | */ | |
140 | ||
141 | #define ISD200_TRANSPORT_GOOD 0 /* Transport good, command good */ | |
142 | #define ISD200_TRANSPORT_FAILED 1 /* Transport good, command failed */ | |
143 | #define ISD200_TRANSPORT_ERROR 2 /* Transport bad (i.e. device dead) */ | |
144 | ||
145 | /* driver action codes */ | |
146 | #define ACTION_READ_STATUS 0 | |
147 | #define ACTION_RESET 1 | |
148 | #define ACTION_REENABLE 2 | |
149 | #define ACTION_SOFT_RESET 3 | |
150 | #define ACTION_ENUM 4 | |
151 | #define ACTION_IDENTIFY 5 | |
152 | ||
153 | ||
154 | /* | |
155 | * ata_cdb struct | |
156 | */ | |
157 | ||
158 | ||
159 | union ata_cdb { | |
160 | struct { | |
161 | unsigned char SignatureByte0; | |
162 | unsigned char SignatureByte1; | |
163 | unsigned char ActionSelect; | |
164 | unsigned char RegisterSelect; | |
165 | unsigned char TransferBlockSize; | |
166 | unsigned char WriteData3F6; | |
167 | unsigned char WriteData1F1; | |
168 | unsigned char WriteData1F2; | |
169 | unsigned char WriteData1F3; | |
170 | unsigned char WriteData1F4; | |
171 | unsigned char WriteData1F5; | |
172 | unsigned char WriteData1F6; | |
173 | unsigned char WriteData1F7; | |
174 | unsigned char Reserved[3]; | |
175 | } generic; | |
176 | ||
177 | struct { | |
178 | unsigned char SignatureByte0; | |
179 | unsigned char SignatureByte1; | |
180 | unsigned char ActionSelect; | |
181 | unsigned char RegisterSelect; | |
182 | unsigned char TransferBlockSize; | |
183 | unsigned char AlternateStatusByte; | |
184 | unsigned char ErrorByte; | |
185 | unsigned char SectorCountByte; | |
186 | unsigned char SectorNumberByte; | |
187 | unsigned char CylinderLowByte; | |
188 | unsigned char CylinderHighByte; | |
189 | unsigned char DeviceHeadByte; | |
190 | unsigned char StatusByte; | |
191 | unsigned char Reserved[3]; | |
192 | } read; | |
193 | ||
194 | struct { | |
195 | unsigned char SignatureByte0; | |
196 | unsigned char SignatureByte1; | |
197 | unsigned char ActionSelect; | |
198 | unsigned char RegisterSelect; | |
199 | unsigned char TransferBlockSize; | |
200 | unsigned char DeviceControlByte; | |
201 | unsigned char FeaturesByte; | |
202 | unsigned char SectorCountByte; | |
203 | unsigned char SectorNumberByte; | |
204 | unsigned char CylinderLowByte; | |
205 | unsigned char CylinderHighByte; | |
206 | unsigned char DeviceHeadByte; | |
207 | unsigned char CommandByte; | |
208 | unsigned char Reserved[3]; | |
209 | } write; | |
210 | }; | |
211 | ||
212 | ||
213 | /* | |
214 | * Inquiry data structure. This is the data returned from the target | |
215 | * after it receives an inquiry. | |
216 | * | |
217 | * This structure may be extended by the number of bytes specified | |
218 | * in the field AdditionalLength. The defined size constant only | |
219 | * includes fields through ProductRevisionLevel. | |
220 | */ | |
221 | ||
222 | /* | |
223 | * DeviceType field | |
224 | */ | |
225 | #define DIRECT_ACCESS_DEVICE 0x00 /* disks */ | |
226 | #define DEVICE_REMOVABLE 0x80 | |
227 | ||
228 | struct inquiry_data { | |
229 | unsigned char DeviceType; | |
230 | unsigned char DeviceTypeModifier; | |
231 | unsigned char Versions; | |
232 | unsigned char Format; | |
233 | unsigned char AdditionalLength; | |
234 | unsigned char Reserved[2]; | |
235 | unsigned char Capability; | |
236 | unsigned char VendorId[8]; | |
237 | unsigned char ProductId[16]; | |
238 | unsigned char ProductRevisionLevel[4]; | |
239 | unsigned char VendorSpecific[20]; | |
240 | unsigned char Reserved3[40]; | |
241 | } __attribute__ ((packed)); | |
242 | ||
243 | /* | |
244 | * INQUIRY data buffer size | |
245 | */ | |
246 | ||
247 | #define INQUIRYDATABUFFERSIZE 36 | |
248 | ||
249 | ||
250 | /* | |
251 | * ISD200 CONFIG data struct | |
252 | */ | |
253 | ||
254 | #define ATACFG_TIMING 0x0f | |
255 | #define ATACFG_ATAPI_RESET 0x10 | |
256 | #define ATACFG_MASTER 0x20 | |
257 | #define ATACFG_BLOCKSIZE 0xa0 | |
258 | ||
259 | #define ATACFGE_LAST_LUN 0x07 | |
260 | #define ATACFGE_DESC_OVERRIDE 0x08 | |
261 | #define ATACFGE_STATE_SUSPEND 0x10 | |
262 | #define ATACFGE_SKIP_BOOT 0x20 | |
263 | #define ATACFGE_CONF_DESC2 0x40 | |
264 | #define ATACFGE_INIT_STATUS 0x80 | |
265 | ||
266 | #define CFG_CAPABILITY_SRST 0x01 | |
267 | ||
268 | struct isd200_config { | |
269 | unsigned char EventNotification; | |
270 | unsigned char ExternalClock; | |
271 | unsigned char ATAInitTimeout; | |
272 | unsigned char ATAConfig; | |
273 | unsigned char ATAMajorCommand; | |
274 | unsigned char ATAMinorCommand; | |
275 | unsigned char ATAExtraConfig; | |
276 | unsigned char Capability; | |
277 | }__attribute__ ((packed)); | |
278 | ||
279 | ||
280 | /* | |
281 | * ISD200 driver information struct | |
282 | */ | |
283 | ||
284 | struct isd200_info { | |
285 | struct inquiry_data InquiryData; | |
286 | struct hd_driveid *id; | |
287 | struct isd200_config ConfigData; | |
288 | unsigned char *RegsBuf; | |
289 | unsigned char ATARegs[8]; | |
290 | unsigned char DeviceHead; | |
291 | unsigned char DeviceFlags; | |
292 | ||
293 | /* maximum number of LUNs supported */ | |
294 | unsigned char MaxLUNs; | |
64a87b24 | 295 | unsigned char cmnd[BLK_MAX_CDB]; |
1da177e4 | 296 | struct scsi_cmnd srb; |
48c23d3e | 297 | struct scatterlist sg; |
1da177e4 LT |
298 | }; |
299 | ||
300 | ||
301 | /* | |
302 | * Read Capacity Data - returned in Big Endian format | |
303 | */ | |
304 | ||
305 | struct read_capacity_data { | |
306 | __be32 LogicalBlockAddress; | |
307 | __be32 BytesPerBlock; | |
308 | }; | |
309 | ||
310 | /* | |
311 | * Read Block Limits Data - returned in Big Endian format | |
312 | * This structure returns the maximum and minimum block | |
313 | * size for a TAPE device. | |
314 | */ | |
315 | ||
316 | struct read_block_limits { | |
317 | unsigned char Reserved; | |
318 | unsigned char BlockMaximumSize[3]; | |
319 | unsigned char BlockMinimumSize[2]; | |
320 | }; | |
321 | ||
322 | ||
323 | /* | |
324 | * Sense Data Format | |
325 | */ | |
326 | ||
327 | #define SENSE_ERRCODE 0x7f | |
328 | #define SENSE_ERRCODE_VALID 0x80 | |
329 | #define SENSE_FLAG_SENSE_KEY 0x0f | |
330 | #define SENSE_FLAG_BAD_LENGTH 0x20 | |
331 | #define SENSE_FLAG_END_OF_MEDIA 0x40 | |
332 | #define SENSE_FLAG_FILE_MARK 0x80 | |
333 | struct sense_data { | |
334 | unsigned char ErrorCode; | |
335 | unsigned char SegmentNumber; | |
336 | unsigned char Flags; | |
337 | unsigned char Information[4]; | |
338 | unsigned char AdditionalSenseLength; | |
339 | unsigned char CommandSpecificInformation[4]; | |
340 | unsigned char AdditionalSenseCode; | |
341 | unsigned char AdditionalSenseCodeQualifier; | |
342 | unsigned char FieldReplaceableUnitCode; | |
343 | unsigned char SenseKeySpecific[3]; | |
344 | } __attribute__ ((packed)); | |
345 | ||
346 | /* | |
347 | * Default request sense buffer size | |
348 | */ | |
349 | ||
350 | #define SENSE_BUFFER_SIZE 18 | |
351 | ||
352 | /*********************************************************************** | |
353 | * Helper routines | |
354 | ***********************************************************************/ | |
355 | ||
356 | /************************************************************************** | |
357 | * isd200_build_sense | |
358 | * | |
359 | * Builds an artificial sense buffer to report the results of a | |
360 | * failed command. | |
361 | * | |
362 | * RETURNS: | |
363 | * void | |
364 | */ | |
365 | static void isd200_build_sense(struct us_data *us, struct scsi_cmnd *srb) | |
366 | { | |
367 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
368 | struct sense_data *buf = (struct sense_data *) &srb->sense_buffer[0]; | |
c74e8095 | 369 | unsigned char error = info->ATARegs[ATA_REG_ERROR_OFFSET]; |
1da177e4 LT |
370 | |
371 | if(error & ATA_ERROR_MEDIA_CHANGE) { | |
372 | buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID; | |
373 | buf->AdditionalSenseLength = 0xb; | |
374 | buf->Flags = UNIT_ATTENTION; | |
375 | buf->AdditionalSenseCode = 0; | |
376 | buf->AdditionalSenseCodeQualifier = 0; | |
377 | } else if(error & MCR_ERR) { | |
378 | buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID; | |
379 | buf->AdditionalSenseLength = 0xb; | |
380 | buf->Flags = UNIT_ATTENTION; | |
381 | buf->AdditionalSenseCode = 0; | |
382 | buf->AdditionalSenseCodeQualifier = 0; | |
383 | } else if(error & TRK0_ERR) { | |
384 | buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID; | |
385 | buf->AdditionalSenseLength = 0xb; | |
386 | buf->Flags = NOT_READY; | |
387 | buf->AdditionalSenseCode = 0; | |
388 | buf->AdditionalSenseCodeQualifier = 0; | |
389 | } else if(error & ECC_ERR) { | |
390 | buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID; | |
391 | buf->AdditionalSenseLength = 0xb; | |
392 | buf->Flags = DATA_PROTECT; | |
393 | buf->AdditionalSenseCode = 0; | |
394 | buf->AdditionalSenseCodeQualifier = 0; | |
395 | } else { | |
396 | buf->ErrorCode = 0; | |
397 | buf->AdditionalSenseLength = 0; | |
398 | buf->Flags = 0; | |
399 | buf->AdditionalSenseCode = 0; | |
400 | buf->AdditionalSenseCodeQualifier = 0; | |
401 | } | |
402 | } | |
403 | ||
404 | ||
405 | /*********************************************************************** | |
406 | * Transport routines | |
407 | ***********************************************************************/ | |
408 | ||
48c23d3e BH |
409 | /************************************************************************** |
410 | * isd200_set_srb(), isd200_srb_set_bufflen() | |
411 | * | |
412 | * Two helpers to facilitate in initialization of scsi_cmnd structure | |
413 | * Will need to change when struct scsi_cmnd changes | |
414 | */ | |
415 | static void isd200_set_srb(struct isd200_info *info, | |
416 | enum dma_data_direction dir, void* buff, unsigned bufflen) | |
417 | { | |
418 | struct scsi_cmnd *srb = &info->srb; | |
419 | ||
420 | if (buff) | |
421 | sg_init_one(&info->sg, buff, bufflen); | |
422 | ||
423 | srb->sc_data_direction = dir; | |
30b0c37b BH |
424 | srb->sdb.table.sgl = buff ? &info->sg : NULL; |
425 | srb->sdb.length = bufflen; | |
426 | srb->sdb.table.nents = buff ? 1 : 0; | |
48c23d3e BH |
427 | } |
428 | ||
429 | static void isd200_srb_set_bufflen(struct scsi_cmnd *srb, unsigned bufflen) | |
430 | { | |
30b0c37b | 431 | srb->sdb.length = bufflen; |
48c23d3e BH |
432 | } |
433 | ||
1da177e4 LT |
434 | |
435 | /************************************************************************** | |
436 | * isd200_action | |
437 | * | |
438 | * Routine for sending commands to the isd200 | |
439 | * | |
440 | * RETURNS: | |
441 | * ISD status code | |
442 | */ | |
443 | static int isd200_action( struct us_data *us, int action, | |
444 | void* pointer, int value ) | |
445 | { | |
446 | union ata_cdb ata; | |
447 | struct scsi_device srb_dev; | |
448 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
449 | struct scsi_cmnd *srb = &info->srb; | |
450 | int status; | |
451 | ||
452 | memset(&ata, 0, sizeof(ata)); | |
453 | memset(&srb_dev, 0, sizeof(srb_dev)); | |
64a87b24 | 454 | srb->cmnd = info->cmnd; |
1da177e4 LT |
455 | srb->device = &srb_dev; |
456 | ++srb->serial_number; | |
457 | ||
458 | ata.generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
459 | ata.generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
460 | ata.generic.TransferBlockSize = 1; | |
461 | ||
462 | switch ( action ) { | |
463 | case ACTION_READ_STATUS: | |
464 | US_DEBUGP(" isd200_action(READ_STATUS)\n"); | |
465 | ata.generic.ActionSelect = ACTION_SELECT_0|ACTION_SELECT_2; | |
466 | ata.generic.RegisterSelect = | |
467 | REG_CYLINDER_LOW | REG_CYLINDER_HIGH | | |
468 | REG_STATUS | REG_ERROR; | |
48c23d3e | 469 | isd200_set_srb(info, DMA_FROM_DEVICE, pointer, value); |
1da177e4 LT |
470 | break; |
471 | ||
472 | case ACTION_ENUM: | |
473 | US_DEBUGP(" isd200_action(ENUM,0x%02x)\n",value); | |
474 | ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_2| | |
475 | ACTION_SELECT_3|ACTION_SELECT_4| | |
476 | ACTION_SELECT_5; | |
477 | ata.generic.RegisterSelect = REG_DEVICE_HEAD; | |
478 | ata.write.DeviceHeadByte = value; | |
48c23d3e | 479 | isd200_set_srb(info, DMA_NONE, NULL, 0); |
1da177e4 LT |
480 | break; |
481 | ||
482 | case ACTION_RESET: | |
483 | US_DEBUGP(" isd200_action(RESET)\n"); | |
484 | ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_2| | |
485 | ACTION_SELECT_3|ACTION_SELECT_4; | |
486 | ata.generic.RegisterSelect = REG_DEVICE_CONTROL; | |
487 | ata.write.DeviceControlByte = ATA_DC_RESET_CONTROLLER; | |
48c23d3e | 488 | isd200_set_srb(info, DMA_NONE, NULL, 0); |
1da177e4 LT |
489 | break; |
490 | ||
491 | case ACTION_REENABLE: | |
492 | US_DEBUGP(" isd200_action(REENABLE)\n"); | |
493 | ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_2| | |
494 | ACTION_SELECT_3|ACTION_SELECT_4; | |
495 | ata.generic.RegisterSelect = REG_DEVICE_CONTROL; | |
496 | ata.write.DeviceControlByte = ATA_DC_REENABLE_CONTROLLER; | |
48c23d3e | 497 | isd200_set_srb(info, DMA_NONE, NULL, 0); |
1da177e4 LT |
498 | break; |
499 | ||
500 | case ACTION_SOFT_RESET: | |
501 | US_DEBUGP(" isd200_action(SOFT_RESET)\n"); | |
502 | ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_5; | |
503 | ata.generic.RegisterSelect = REG_DEVICE_HEAD | REG_COMMAND; | |
504 | ata.write.DeviceHeadByte = info->DeviceHead; | |
505 | ata.write.CommandByte = WIN_SRST; | |
48c23d3e | 506 | isd200_set_srb(info, DMA_NONE, NULL, 0); |
1da177e4 LT |
507 | break; |
508 | ||
509 | case ACTION_IDENTIFY: | |
510 | US_DEBUGP(" isd200_action(IDENTIFY)\n"); | |
511 | ata.generic.RegisterSelect = REG_COMMAND; | |
512 | ata.write.CommandByte = WIN_IDENTIFY; | |
48c23d3e BH |
513 | isd200_set_srb(info, DMA_FROM_DEVICE, info->id, |
514 | sizeof(struct hd_driveid)); | |
1da177e4 LT |
515 | break; |
516 | ||
517 | default: | |
518 | US_DEBUGP("Error: Undefined action %d\n",action); | |
48c23d3e | 519 | return ISD200_ERROR; |
1da177e4 LT |
520 | } |
521 | ||
522 | memcpy(srb->cmnd, &ata, sizeof(ata.generic)); | |
523 | srb->cmd_len = sizeof(ata.generic); | |
524 | status = usb_stor_Bulk_transport(srb, us); | |
525 | if (status == USB_STOR_TRANSPORT_GOOD) | |
526 | status = ISD200_GOOD; | |
527 | else { | |
528 | US_DEBUGP(" isd200_action(0x%02x) error: %d\n",action,status); | |
529 | status = ISD200_ERROR; | |
530 | /* need to reset device here */ | |
531 | } | |
532 | ||
533 | return status; | |
534 | } | |
535 | ||
536 | /************************************************************************** | |
537 | * isd200_read_regs | |
538 | * | |
539 | * Read ATA Registers | |
540 | * | |
541 | * RETURNS: | |
542 | * ISD status code | |
543 | */ | |
544 | static int isd200_read_regs( struct us_data *us ) | |
545 | { | |
546 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
547 | int retStatus = ISD200_GOOD; | |
548 | int transferStatus; | |
549 | ||
550 | US_DEBUGP("Entering isd200_IssueATAReadRegs\n"); | |
551 | ||
552 | transferStatus = isd200_action( us, ACTION_READ_STATUS, | |
553 | info->RegsBuf, sizeof(info->ATARegs) ); | |
554 | if (transferStatus != ISD200_TRANSPORT_GOOD) { | |
555 | US_DEBUGP(" Error reading ATA registers\n"); | |
556 | retStatus = ISD200_ERROR; | |
557 | } else { | |
558 | memcpy(info->ATARegs, info->RegsBuf, sizeof(info->ATARegs)); | |
c74e8095 BZ |
559 | US_DEBUGP(" Got ATA Register[ATA_REG_ERROR_OFFSET] = 0x%x\n", |
560 | info->ATARegs[ATA_REG_ERROR_OFFSET]); | |
1da177e4 LT |
561 | } |
562 | ||
563 | return retStatus; | |
564 | } | |
565 | ||
566 | ||
567 | /************************************************************************** | |
568 | * Invoke the transport and basic error-handling/recovery methods | |
569 | * | |
570 | * This is used by the protocol layers to actually send the message to | |
571 | * the device and receive the response. | |
572 | */ | |
573 | static void isd200_invoke_transport( struct us_data *us, | |
574 | struct scsi_cmnd *srb, | |
575 | union ata_cdb *ataCdb ) | |
576 | { | |
577 | int need_auto_sense = 0; | |
578 | int transferStatus; | |
579 | int result; | |
580 | ||
581 | /* send the command to the transport layer */ | |
582 | memcpy(srb->cmnd, ataCdb, sizeof(ataCdb->generic)); | |
583 | srb->cmd_len = sizeof(ataCdb->generic); | |
584 | transferStatus = usb_stor_Bulk_transport(srb, us); | |
585 | ||
586 | /* if the command gets aborted by the higher layers, we need to | |
587 | * short-circuit all other processing | |
588 | */ | |
589 | if (test_bit(US_FLIDX_TIMED_OUT, &us->flags)) { | |
590 | US_DEBUGP("-- command was aborted\n"); | |
591 | goto Handle_Abort; | |
592 | } | |
593 | ||
594 | switch (transferStatus) { | |
595 | ||
596 | case USB_STOR_TRANSPORT_GOOD: | |
597 | /* Indicate a good result */ | |
598 | srb->result = SAM_STAT_GOOD; | |
599 | break; | |
600 | ||
601 | case USB_STOR_TRANSPORT_NO_SENSE: | |
602 | US_DEBUGP("-- transport indicates protocol failure\n"); | |
603 | srb->result = SAM_STAT_CHECK_CONDITION; | |
604 | return; | |
605 | ||
606 | case USB_STOR_TRANSPORT_FAILED: | |
607 | US_DEBUGP("-- transport indicates command failure\n"); | |
608 | need_auto_sense = 1; | |
609 | break; | |
610 | ||
611 | case USB_STOR_TRANSPORT_ERROR: | |
612 | US_DEBUGP("-- transport indicates transport error\n"); | |
613 | srb->result = DID_ERROR << 16; | |
614 | /* Need reset here */ | |
615 | return; | |
616 | ||
617 | default: | |
618 | US_DEBUGP("-- transport indicates unknown error\n"); | |
619 | srb->result = DID_ERROR << 16; | |
620 | /* Need reset here */ | |
621 | return; | |
622 | } | |
623 | ||
48c23d3e | 624 | if ((scsi_get_resid(srb) > 0) && |
1da177e4 LT |
625 | !((srb->cmnd[0] == REQUEST_SENSE) || |
626 | (srb->cmnd[0] == INQUIRY) || | |
627 | (srb->cmnd[0] == MODE_SENSE) || | |
628 | (srb->cmnd[0] == LOG_SENSE) || | |
629 | (srb->cmnd[0] == MODE_SENSE_10))) { | |
630 | US_DEBUGP("-- unexpectedly short transfer\n"); | |
631 | need_auto_sense = 1; | |
632 | } | |
633 | ||
634 | if (need_auto_sense) { | |
635 | result = isd200_read_regs(us); | |
636 | if (test_bit(US_FLIDX_TIMED_OUT, &us->flags)) { | |
637 | US_DEBUGP("-- auto-sense aborted\n"); | |
638 | goto Handle_Abort; | |
639 | } | |
640 | if (result == ISD200_GOOD) { | |
641 | isd200_build_sense(us, srb); | |
642 | srb->result = SAM_STAT_CHECK_CONDITION; | |
643 | ||
644 | /* If things are really okay, then let's show that */ | |
645 | if ((srb->sense_buffer[2] & 0xf) == 0x0) | |
646 | srb->result = SAM_STAT_GOOD; | |
647 | } else { | |
648 | srb->result = DID_ERROR << 16; | |
649 | /* Need reset here */ | |
650 | } | |
651 | } | |
652 | ||
653 | /* Regardless of auto-sense, if we _know_ we have an error | |
654 | * condition, show that in the result code | |
655 | */ | |
656 | if (transferStatus == USB_STOR_TRANSPORT_FAILED) | |
657 | srb->result = SAM_STAT_CHECK_CONDITION; | |
658 | return; | |
659 | ||
660 | /* abort processing: the bulk-only transport requires a reset | |
661 | * following an abort */ | |
662 | Handle_Abort: | |
663 | srb->result = DID_ABORT << 16; | |
664 | ||
665 | /* permit the reset transfer to take place */ | |
666 | clear_bit(US_FLIDX_ABORTING, &us->flags); | |
667 | /* Need reset here */ | |
668 | } | |
669 | ||
670 | #ifdef CONFIG_USB_STORAGE_DEBUG | |
671 | static void isd200_log_config( struct isd200_info* info ) | |
672 | { | |
673 | US_DEBUGP(" Event Notification: 0x%x\n", | |
674 | info->ConfigData.EventNotification); | |
675 | US_DEBUGP(" External Clock: 0x%x\n", | |
676 | info->ConfigData.ExternalClock); | |
677 | US_DEBUGP(" ATA Init Timeout: 0x%x\n", | |
678 | info->ConfigData.ATAInitTimeout); | |
679 | US_DEBUGP(" ATAPI Command Block Size: 0x%x\n", | |
680 | (info->ConfigData.ATAConfig & ATACFG_BLOCKSIZE) >> 6); | |
681 | US_DEBUGP(" Master/Slave Selection: 0x%x\n", | |
682 | info->ConfigData.ATAConfig & ATACFG_MASTER); | |
683 | US_DEBUGP(" ATAPI Reset: 0x%x\n", | |
684 | info->ConfigData.ATAConfig & ATACFG_ATAPI_RESET); | |
685 | US_DEBUGP(" ATA Timing: 0x%x\n", | |
686 | info->ConfigData.ATAConfig & ATACFG_TIMING); | |
687 | US_DEBUGP(" ATA Major Command: 0x%x\n", | |
688 | info->ConfigData.ATAMajorCommand); | |
689 | US_DEBUGP(" ATA Minor Command: 0x%x\n", | |
690 | info->ConfigData.ATAMinorCommand); | |
691 | US_DEBUGP(" Init Status: 0x%x\n", | |
692 | info->ConfigData.ATAExtraConfig & ATACFGE_INIT_STATUS); | |
693 | US_DEBUGP(" Config Descriptor 2: 0x%x\n", | |
694 | info->ConfigData.ATAExtraConfig & ATACFGE_CONF_DESC2); | |
695 | US_DEBUGP(" Skip Device Boot: 0x%x\n", | |
696 | info->ConfigData.ATAExtraConfig & ATACFGE_SKIP_BOOT); | |
697 | US_DEBUGP(" ATA 3 State Supsend: 0x%x\n", | |
698 | info->ConfigData.ATAExtraConfig & ATACFGE_STATE_SUSPEND); | |
699 | US_DEBUGP(" Descriptor Override: 0x%x\n", | |
700 | info->ConfigData.ATAExtraConfig & ATACFGE_DESC_OVERRIDE); | |
701 | US_DEBUGP(" Last LUN Identifier: 0x%x\n", | |
702 | info->ConfigData.ATAExtraConfig & ATACFGE_LAST_LUN); | |
703 | US_DEBUGP(" SRST Enable: 0x%x\n", | |
704 | info->ConfigData.ATAExtraConfig & CFG_CAPABILITY_SRST); | |
705 | } | |
706 | #endif | |
707 | ||
708 | /************************************************************************** | |
709 | * isd200_write_config | |
710 | * | |
711 | * Write the ISD200 Configuration data | |
712 | * | |
713 | * RETURNS: | |
714 | * ISD status code | |
715 | */ | |
716 | static int isd200_write_config( struct us_data *us ) | |
717 | { | |
718 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
719 | int retStatus = ISD200_GOOD; | |
720 | int result; | |
721 | ||
722 | #ifdef CONFIG_USB_STORAGE_DEBUG | |
723 | US_DEBUGP("Entering isd200_write_config\n"); | |
724 | US_DEBUGP(" Writing the following ISD200 Config Data:\n"); | |
725 | isd200_log_config(info); | |
726 | #endif | |
727 | ||
728 | /* let's send the command via the control pipe */ | |
729 | result = usb_stor_ctrl_transfer( | |
730 | us, | |
731 | us->send_ctrl_pipe, | |
732 | 0x01, | |
733 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, | |
734 | 0x0000, | |
735 | 0x0002, | |
736 | (void *) &info->ConfigData, | |
737 | sizeof(info->ConfigData)); | |
738 | ||
739 | if (result >= 0) { | |
740 | US_DEBUGP(" ISD200 Config Data was written successfully\n"); | |
741 | } else { | |
742 | US_DEBUGP(" Request to write ISD200 Config Data failed!\n"); | |
743 | retStatus = ISD200_ERROR; | |
744 | } | |
745 | ||
746 | US_DEBUGP("Leaving isd200_write_config %08X\n", retStatus); | |
747 | return retStatus; | |
748 | } | |
749 | ||
750 | ||
751 | /************************************************************************** | |
752 | * isd200_read_config | |
753 | * | |
754 | * Reads the ISD200 Configuration data | |
755 | * | |
756 | * RETURNS: | |
757 | * ISD status code | |
758 | */ | |
759 | static int isd200_read_config( struct us_data *us ) | |
760 | { | |
761 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
762 | int retStatus = ISD200_GOOD; | |
763 | int result; | |
764 | ||
765 | US_DEBUGP("Entering isd200_read_config\n"); | |
766 | ||
767 | /* read the configuration information from ISD200. Use this to */ | |
768 | /* determine what the special ATA CDB bytes are. */ | |
769 | ||
770 | result = usb_stor_ctrl_transfer( | |
771 | us, | |
772 | us->recv_ctrl_pipe, | |
773 | 0x02, | |
774 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, | |
775 | 0x0000, | |
776 | 0x0002, | |
777 | (void *) &info->ConfigData, | |
778 | sizeof(info->ConfigData)); | |
779 | ||
780 | ||
781 | if (result >= 0) { | |
782 | US_DEBUGP(" Retrieved the following ISD200 Config Data:\n"); | |
783 | #ifdef CONFIG_USB_STORAGE_DEBUG | |
784 | isd200_log_config(info); | |
785 | #endif | |
786 | } else { | |
787 | US_DEBUGP(" Request to get ISD200 Config Data failed!\n"); | |
788 | retStatus = ISD200_ERROR; | |
789 | } | |
790 | ||
791 | US_DEBUGP("Leaving isd200_read_config %08X\n", retStatus); | |
792 | return retStatus; | |
793 | } | |
794 | ||
795 | ||
796 | /************************************************************************** | |
797 | * isd200_atapi_soft_reset | |
798 | * | |
799 | * Perform an Atapi Soft Reset on the device | |
800 | * | |
801 | * RETURNS: | |
802 | * NT status code | |
803 | */ | |
804 | static int isd200_atapi_soft_reset( struct us_data *us ) | |
805 | { | |
806 | int retStatus = ISD200_GOOD; | |
807 | int transferStatus; | |
808 | ||
809 | US_DEBUGP("Entering isd200_atapi_soft_reset\n"); | |
810 | ||
811 | transferStatus = isd200_action( us, ACTION_SOFT_RESET, NULL, 0 ); | |
812 | if (transferStatus != ISD200_TRANSPORT_GOOD) { | |
813 | US_DEBUGP(" Error issuing Atapi Soft Reset\n"); | |
814 | retStatus = ISD200_ERROR; | |
815 | } | |
816 | ||
817 | US_DEBUGP("Leaving isd200_atapi_soft_reset %08X\n", retStatus); | |
818 | return retStatus; | |
819 | } | |
820 | ||
821 | ||
822 | /************************************************************************** | |
823 | * isd200_srst | |
824 | * | |
825 | * Perform an SRST on the device | |
826 | * | |
827 | * RETURNS: | |
828 | * ISD status code | |
829 | */ | |
830 | static int isd200_srst( struct us_data *us ) | |
831 | { | |
832 | int retStatus = ISD200_GOOD; | |
833 | int transferStatus; | |
834 | ||
835 | US_DEBUGP("Entering isd200_SRST\n"); | |
836 | ||
837 | transferStatus = isd200_action( us, ACTION_RESET, NULL, 0 ); | |
838 | ||
839 | /* check to see if this request failed */ | |
840 | if (transferStatus != ISD200_TRANSPORT_GOOD) { | |
841 | US_DEBUGP(" Error issuing SRST\n"); | |
842 | retStatus = ISD200_ERROR; | |
843 | } else { | |
844 | /* delay 10ms to give the drive a chance to see it */ | |
845 | msleep(10); | |
846 | ||
847 | transferStatus = isd200_action( us, ACTION_REENABLE, NULL, 0 ); | |
848 | if (transferStatus != ISD200_TRANSPORT_GOOD) { | |
849 | US_DEBUGP(" Error taking drive out of reset\n"); | |
850 | retStatus = ISD200_ERROR; | |
851 | } else { | |
852 | /* delay 50ms to give the drive a chance to recover after SRST */ | |
853 | msleep(50); | |
854 | } | |
855 | } | |
856 | ||
857 | US_DEBUGP("Leaving isd200_srst %08X\n", retStatus); | |
858 | return retStatus; | |
859 | } | |
860 | ||
861 | ||
862 | /************************************************************************** | |
863 | * isd200_try_enum | |
864 | * | |
865 | * Helper function for isd200_manual_enum(). Does ENUM and READ_STATUS | |
866 | * and tries to analyze the status registers | |
867 | * | |
868 | * RETURNS: | |
869 | * ISD status code | |
870 | */ | |
871 | static int isd200_try_enum(struct us_data *us, unsigned char master_slave, | |
872 | int detect ) | |
873 | { | |
874 | int status = ISD200_GOOD; | |
875 | unsigned long endTime; | |
876 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
877 | unsigned char *regs = info->RegsBuf; | |
878 | int recheckAsMaster = 0; | |
879 | ||
880 | if ( detect ) | |
881 | endTime = jiffies + ISD200_ENUM_DETECT_TIMEOUT * HZ; | |
882 | else | |
883 | endTime = jiffies + ISD200_ENUM_BSY_TIMEOUT * HZ; | |
884 | ||
885 | /* loop until we detect !BSY or timeout */ | |
886 | while(1) { | |
887 | #ifdef CONFIG_USB_STORAGE_DEBUG | |
888 | char* mstr = master_slave == ATA_ADDRESS_DEVHEAD_STD ? | |
889 | "Master" : "Slave"; | |
890 | #endif | |
891 | ||
892 | status = isd200_action( us, ACTION_ENUM, NULL, master_slave ); | |
893 | if ( status != ISD200_GOOD ) | |
894 | break; | |
895 | ||
896 | status = isd200_action( us, ACTION_READ_STATUS, | |
897 | regs, 8 ); | |
898 | if ( status != ISD200_GOOD ) | |
899 | break; | |
900 | ||
901 | if (!detect) { | |
c74e8095 | 902 | if (regs[ATA_REG_STATUS_OFFSET] & BUSY_STAT) { |
1da177e4 LT |
903 | US_DEBUGP(" %s status is still BSY, try again...\n",mstr); |
904 | } else { | |
905 | US_DEBUGP(" %s status !BSY, continue with next operation\n",mstr); | |
906 | break; | |
907 | } | |
908 | } | |
909 | /* check for BUSY_STAT and */ | |
910 | /* WRERR_STAT (workaround ATA Zip drive) and */ | |
911 | /* ERR_STAT (workaround for Archos CD-ROM) */ | |
c74e8095 | 912 | else if (regs[ATA_REG_STATUS_OFFSET] & |
1da177e4 LT |
913 | (BUSY_STAT | WRERR_STAT | ERR_STAT )) { |
914 | US_DEBUGP(" Status indicates it is not ready, try again...\n"); | |
915 | } | |
916 | /* check for DRDY, ATA devices set DRDY after SRST */ | |
c74e8095 | 917 | else if (regs[ATA_REG_STATUS_OFFSET] & READY_STAT) { |
1da177e4 LT |
918 | US_DEBUGP(" Identified ATA device\n"); |
919 | info->DeviceFlags |= DF_ATA_DEVICE; | |
920 | info->DeviceHead = master_slave; | |
921 | break; | |
922 | } | |
923 | /* check Cylinder High/Low to | |
924 | determine if it is an ATAPI device | |
925 | */ | |
c74e8095 BZ |
926 | else if (regs[ATA_REG_HCYL_OFFSET] == 0xEB && |
927 | regs[ATA_REG_LCYL_OFFSET] == 0x14) { | |
1da177e4 LT |
928 | /* It seems that the RICOH |
929 | MP6200A CD/RW drive will | |
930 | report itself okay as a | |
931 | slave when it is really a | |
932 | master. So this check again | |
933 | as a master device just to | |
934 | make sure it doesn't report | |
935 | itself okay as a master also | |
936 | */ | |
937 | if ((master_slave & ATA_ADDRESS_DEVHEAD_SLAVE) && | |
938 | !recheckAsMaster) { | |
939 | US_DEBUGP(" Identified ATAPI device as slave. Rechecking again as master\n"); | |
940 | recheckAsMaster = 1; | |
941 | master_slave = ATA_ADDRESS_DEVHEAD_STD; | |
942 | } else { | |
943 | US_DEBUGP(" Identified ATAPI device\n"); | |
944 | info->DeviceHead = master_slave; | |
945 | ||
946 | status = isd200_atapi_soft_reset(us); | |
947 | break; | |
948 | } | |
949 | } else { | |
950 | US_DEBUGP(" Not ATA, not ATAPI. Weird.\n"); | |
951 | break; | |
952 | } | |
953 | ||
954 | /* check for timeout on this request */ | |
955 | if (time_after_eq(jiffies, endTime)) { | |
956 | if (!detect) | |
957 | US_DEBUGP(" BSY check timeout, just continue with next operation...\n"); | |
958 | else | |
959 | US_DEBUGP(" Device detect timeout!\n"); | |
960 | break; | |
961 | } | |
962 | } | |
963 | ||
964 | return status; | |
965 | } | |
966 | ||
967 | /************************************************************************** | |
968 | * isd200_manual_enum | |
969 | * | |
970 | * Determines if the drive attached is an ATA or ATAPI and if it is a | |
971 | * master or slave. | |
972 | * | |
973 | * RETURNS: | |
974 | * ISD status code | |
975 | */ | |
976 | static int isd200_manual_enum(struct us_data *us) | |
977 | { | |
978 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
979 | int retStatus = ISD200_GOOD; | |
980 | ||
981 | US_DEBUGP("Entering isd200_manual_enum\n"); | |
982 | ||
983 | retStatus = isd200_read_config(us); | |
984 | if (retStatus == ISD200_GOOD) { | |
985 | int isslave; | |
986 | /* master or slave? */ | |
987 | retStatus = isd200_try_enum( us, ATA_ADDRESS_DEVHEAD_STD, 0); | |
988 | if (retStatus == ISD200_GOOD) | |
989 | retStatus = isd200_try_enum( us, ATA_ADDRESS_DEVHEAD_SLAVE, 0); | |
990 | ||
991 | if (retStatus == ISD200_GOOD) { | |
992 | retStatus = isd200_srst(us); | |
993 | if (retStatus == ISD200_GOOD) | |
994 | /* ata or atapi? */ | |
995 | retStatus = isd200_try_enum( us, ATA_ADDRESS_DEVHEAD_STD, 1); | |
996 | } | |
997 | ||
998 | isslave = (info->DeviceHead & ATA_ADDRESS_DEVHEAD_SLAVE) ? 1 : 0; | |
999 | if (!(info->ConfigData.ATAConfig & ATACFG_MASTER)) { | |
1000 | US_DEBUGP(" Setting Master/Slave selection to %d\n", isslave); | |
1001 | info->ConfigData.ATAConfig &= 0x3f; | |
1002 | info->ConfigData.ATAConfig |= (isslave<<6); | |
1003 | retStatus = isd200_write_config(us); | |
1004 | } | |
1005 | } | |
1006 | ||
1007 | US_DEBUGP("Leaving isd200_manual_enum %08X\n", retStatus); | |
1008 | return(retStatus); | |
1009 | } | |
1010 | ||
3794ade5 AC |
1011 | static void isd200_fix_driveid (struct hd_driveid *id) |
1012 | { | |
1013 | #ifndef __LITTLE_ENDIAN | |
1014 | # ifdef __BIG_ENDIAN | |
1015 | int i; | |
1016 | u16 *stringcast; | |
1017 | ||
1018 | id->config = __le16_to_cpu(id->config); | |
1019 | id->cyls = __le16_to_cpu(id->cyls); | |
1020 | id->reserved2 = __le16_to_cpu(id->reserved2); | |
1021 | id->heads = __le16_to_cpu(id->heads); | |
1022 | id->track_bytes = __le16_to_cpu(id->track_bytes); | |
1023 | id->sector_bytes = __le16_to_cpu(id->sector_bytes); | |
1024 | id->sectors = __le16_to_cpu(id->sectors); | |
1025 | id->vendor0 = __le16_to_cpu(id->vendor0); | |
1026 | id->vendor1 = __le16_to_cpu(id->vendor1); | |
1027 | id->vendor2 = __le16_to_cpu(id->vendor2); | |
1028 | stringcast = (u16 *)&id->serial_no[0]; | |
1029 | for (i = 0; i < (20/2); i++) | |
1030 | stringcast[i] = __le16_to_cpu(stringcast[i]); | |
1031 | id->buf_type = __le16_to_cpu(id->buf_type); | |
1032 | id->buf_size = __le16_to_cpu(id->buf_size); | |
1033 | id->ecc_bytes = __le16_to_cpu(id->ecc_bytes); | |
1034 | stringcast = (u16 *)&id->fw_rev[0]; | |
1035 | for (i = 0; i < (8/2); i++) | |
1036 | stringcast[i] = __le16_to_cpu(stringcast[i]); | |
1037 | stringcast = (u16 *)&id->model[0]; | |
1038 | for (i = 0; i < (40/2); i++) | |
1039 | stringcast[i] = __le16_to_cpu(stringcast[i]); | |
1040 | id->dword_io = __le16_to_cpu(id->dword_io); | |
1041 | id->reserved50 = __le16_to_cpu(id->reserved50); | |
1042 | id->field_valid = __le16_to_cpu(id->field_valid); | |
1043 | id->cur_cyls = __le16_to_cpu(id->cur_cyls); | |
1044 | id->cur_heads = __le16_to_cpu(id->cur_heads); | |
1045 | id->cur_sectors = __le16_to_cpu(id->cur_sectors); | |
1046 | id->cur_capacity0 = __le16_to_cpu(id->cur_capacity0); | |
1047 | id->cur_capacity1 = __le16_to_cpu(id->cur_capacity1); | |
1048 | id->lba_capacity = __le32_to_cpu(id->lba_capacity); | |
1049 | id->dma_1word = __le16_to_cpu(id->dma_1word); | |
1050 | id->dma_mword = __le16_to_cpu(id->dma_mword); | |
1051 | id->eide_pio_modes = __le16_to_cpu(id->eide_pio_modes); | |
1052 | id->eide_dma_min = __le16_to_cpu(id->eide_dma_min); | |
1053 | id->eide_dma_time = __le16_to_cpu(id->eide_dma_time); | |
1054 | id->eide_pio = __le16_to_cpu(id->eide_pio); | |
1055 | id->eide_pio_iordy = __le16_to_cpu(id->eide_pio_iordy); | |
1056 | for (i = 0; i < 2; ++i) | |
1057 | id->words69_70[i] = __le16_to_cpu(id->words69_70[i]); | |
1058 | for (i = 0; i < 4; ++i) | |
1059 | id->words71_74[i] = __le16_to_cpu(id->words71_74[i]); | |
1060 | id->queue_depth = __le16_to_cpu(id->queue_depth); | |
1061 | for (i = 0; i < 4; ++i) | |
1062 | id->words76_79[i] = __le16_to_cpu(id->words76_79[i]); | |
1063 | id->major_rev_num = __le16_to_cpu(id->major_rev_num); | |
1064 | id->minor_rev_num = __le16_to_cpu(id->minor_rev_num); | |
1065 | id->command_set_1 = __le16_to_cpu(id->command_set_1); | |
1066 | id->command_set_2 = __le16_to_cpu(id->command_set_2); | |
1067 | id->cfsse = __le16_to_cpu(id->cfsse); | |
1068 | id->cfs_enable_1 = __le16_to_cpu(id->cfs_enable_1); | |
1069 | id->cfs_enable_2 = __le16_to_cpu(id->cfs_enable_2); | |
1070 | id->csf_default = __le16_to_cpu(id->csf_default); | |
1071 | id->dma_ultra = __le16_to_cpu(id->dma_ultra); | |
1072 | id->trseuc = __le16_to_cpu(id->trseuc); | |
1073 | id->trsEuc = __le16_to_cpu(id->trsEuc); | |
1074 | id->CurAPMvalues = __le16_to_cpu(id->CurAPMvalues); | |
1075 | id->mprc = __le16_to_cpu(id->mprc); | |
1076 | id->hw_config = __le16_to_cpu(id->hw_config); | |
1077 | id->acoustic = __le16_to_cpu(id->acoustic); | |
1078 | id->msrqs = __le16_to_cpu(id->msrqs); | |
1079 | id->sxfert = __le16_to_cpu(id->sxfert); | |
1080 | id->sal = __le16_to_cpu(id->sal); | |
1081 | id->spg = __le32_to_cpu(id->spg); | |
1082 | id->lba_capacity_2 = __le64_to_cpu(id->lba_capacity_2); | |
1083 | for (i = 0; i < 22; i++) | |
1084 | id->words104_125[i] = __le16_to_cpu(id->words104_125[i]); | |
1085 | id->last_lun = __le16_to_cpu(id->last_lun); | |
1086 | id->word127 = __le16_to_cpu(id->word127); | |
1087 | id->dlf = __le16_to_cpu(id->dlf); | |
1088 | id->csfo = __le16_to_cpu(id->csfo); | |
1089 | for (i = 0; i < 26; i++) | |
1090 | id->words130_155[i] = __le16_to_cpu(id->words130_155[i]); | |
1091 | id->word156 = __le16_to_cpu(id->word156); | |
1092 | for (i = 0; i < 3; i++) | |
1093 | id->words157_159[i] = __le16_to_cpu(id->words157_159[i]); | |
1094 | id->cfa_power = __le16_to_cpu(id->cfa_power); | |
1095 | for (i = 0; i < 14; i++) | |
1096 | id->words161_175[i] = __le16_to_cpu(id->words161_175[i]); | |
1097 | for (i = 0; i < 31; i++) | |
1098 | id->words176_205[i] = __le16_to_cpu(id->words176_205[i]); | |
1099 | for (i = 0; i < 48; i++) | |
1100 | id->words206_254[i] = __le16_to_cpu(id->words206_254[i]); | |
1101 | id->integrity_word = __le16_to_cpu(id->integrity_word); | |
1102 | # else | |
1103 | # error "Please fix <asm/byteorder.h>" | |
1104 | # endif | |
1105 | #endif | |
1106 | } | |
1107 | ||
1da177e4 LT |
1108 | |
1109 | /************************************************************************** | |
1110 | * isd200_get_inquiry_data | |
1111 | * | |
1112 | * Get inquiry data | |
1113 | * | |
1114 | * RETURNS: | |
1115 | * ISD status code | |
1116 | */ | |
1117 | static int isd200_get_inquiry_data( struct us_data *us ) | |
1118 | { | |
1119 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
1120 | int retStatus = ISD200_GOOD; | |
1121 | struct hd_driveid *id = info->id; | |
1122 | ||
1123 | US_DEBUGP("Entering isd200_get_inquiry_data\n"); | |
1124 | ||
1125 | /* set default to Master */ | |
1126 | info->DeviceHead = ATA_ADDRESS_DEVHEAD_STD; | |
1127 | ||
1128 | /* attempt to manually enumerate this device */ | |
1129 | retStatus = isd200_manual_enum(us); | |
1130 | if (retStatus == ISD200_GOOD) { | |
1131 | int transferStatus; | |
1132 | ||
1133 | /* check for an ATA device */ | |
1134 | if (info->DeviceFlags & DF_ATA_DEVICE) { | |
1135 | /* this must be an ATA device */ | |
1136 | /* perform an ATA Command Identify */ | |
1137 | transferStatus = isd200_action( us, ACTION_IDENTIFY, | |
1138 | id, | |
1139 | sizeof(struct hd_driveid) ); | |
1140 | if (transferStatus != ISD200_TRANSPORT_GOOD) { | |
1141 | /* Error issuing ATA Command Identify */ | |
1142 | US_DEBUGP(" Error issuing ATA Command Identify\n"); | |
1143 | retStatus = ISD200_ERROR; | |
1144 | } else { | |
1145 | /* ATA Command Identify successful */ | |
1146 | int i; | |
1147 | __be16 *src; | |
1148 | __u16 *dest; | |
3794ade5 | 1149 | isd200_fix_driveid(id); |
1da177e4 LT |
1150 | |
1151 | US_DEBUGP(" Identify Data Structure:\n"); | |
1152 | US_DEBUGP(" config = 0x%x\n", id->config); | |
1153 | US_DEBUGP(" cyls = 0x%x\n", id->cyls); | |
1154 | US_DEBUGP(" heads = 0x%x\n", id->heads); | |
1155 | US_DEBUGP(" track_bytes = 0x%x\n", id->track_bytes); | |
1156 | US_DEBUGP(" sector_bytes = 0x%x\n", id->sector_bytes); | |
1157 | US_DEBUGP(" sectors = 0x%x\n", id->sectors); | |
1158 | US_DEBUGP(" serial_no[0] = 0x%x\n", id->serial_no[0]); | |
1159 | US_DEBUGP(" buf_type = 0x%x\n", id->buf_type); | |
1160 | US_DEBUGP(" buf_size = 0x%x\n", id->buf_size); | |
1161 | US_DEBUGP(" ecc_bytes = 0x%x\n", id->ecc_bytes); | |
1162 | US_DEBUGP(" fw_rev[0] = 0x%x\n", id->fw_rev[0]); | |
1163 | US_DEBUGP(" model[0] = 0x%x\n", id->model[0]); | |
1164 | US_DEBUGP(" max_multsect = 0x%x\n", id->max_multsect); | |
1165 | US_DEBUGP(" dword_io = 0x%x\n", id->dword_io); | |
1166 | US_DEBUGP(" capability = 0x%x\n", id->capability); | |
1167 | US_DEBUGP(" tPIO = 0x%x\n", id->tPIO); | |
1168 | US_DEBUGP(" tDMA = 0x%x\n", id->tDMA); | |
1169 | US_DEBUGP(" field_valid = 0x%x\n", id->field_valid); | |
1170 | US_DEBUGP(" cur_cyls = 0x%x\n", id->cur_cyls); | |
1171 | US_DEBUGP(" cur_heads = 0x%x\n", id->cur_heads); | |
1172 | US_DEBUGP(" cur_sectors = 0x%x\n", id->cur_sectors); | |
1173 | US_DEBUGP(" cur_capacity = 0x%x\n", (id->cur_capacity1 << 16) + id->cur_capacity0 ); | |
1174 | US_DEBUGP(" multsect = 0x%x\n", id->multsect); | |
1175 | US_DEBUGP(" lba_capacity = 0x%x\n", id->lba_capacity); | |
1176 | US_DEBUGP(" command_set_1 = 0x%x\n", id->command_set_1); | |
1177 | US_DEBUGP(" command_set_2 = 0x%x\n", id->command_set_2); | |
1178 | ||
1179 | memset(&info->InquiryData, 0, sizeof(info->InquiryData)); | |
1180 | ||
1181 | /* Standard IDE interface only supports disks */ | |
1182 | info->InquiryData.DeviceType = DIRECT_ACCESS_DEVICE; | |
1183 | ||
1184 | /* The length must be at least 36 (5 + 31) */ | |
1185 | info->InquiryData.AdditionalLength = 0x1F; | |
1186 | ||
1187 | if (id->command_set_1 & COMMANDSET_MEDIA_STATUS) { | |
1188 | /* set the removable bit */ | |
1189 | info->InquiryData.DeviceTypeModifier = DEVICE_REMOVABLE; | |
1190 | info->DeviceFlags |= DF_REMOVABLE_MEDIA; | |
1191 | } | |
1192 | ||
1193 | /* Fill in vendor identification fields */ | |
1194 | src = (__be16*)id->model; | |
1195 | dest = (__u16*)info->InquiryData.VendorId; | |
1196 | for (i=0;i<4;i++) | |
1197 | dest[i] = be16_to_cpu(src[i]); | |
1198 | ||
1199 | src = (__be16*)(id->model+8); | |
1200 | dest = (__u16*)info->InquiryData.ProductId; | |
1201 | for (i=0;i<8;i++) | |
1202 | dest[i] = be16_to_cpu(src[i]); | |
1203 | ||
1204 | src = (__be16*)id->fw_rev; | |
1205 | dest = (__u16*)info->InquiryData.ProductRevisionLevel; | |
1206 | for (i=0;i<2;i++) | |
1207 | dest[i] = be16_to_cpu(src[i]); | |
1208 | ||
1209 | /* determine if it supports Media Status Notification */ | |
1210 | if (id->command_set_2 & COMMANDSET_MEDIA_STATUS) { | |
1211 | US_DEBUGP(" Device supports Media Status Notification\n"); | |
1212 | ||
1213 | /* Indicate that it is enabled, even though it is not | |
1214 | * This allows the lock/unlock of the media to work | |
1215 | * correctly. | |
1216 | */ | |
1217 | info->DeviceFlags |= DF_MEDIA_STATUS_ENABLED; | |
1218 | } | |
1219 | else | |
1220 | info->DeviceFlags &= ~DF_MEDIA_STATUS_ENABLED; | |
1221 | ||
1222 | } | |
1223 | } else { | |
1224 | /* | |
1225 | * this must be an ATAPI device | |
1226 | * use an ATAPI protocol (Transparent SCSI) | |
1227 | */ | |
1228 | us->protocol_name = "Transparent SCSI"; | |
1229 | us->proto_handler = usb_stor_transparent_scsi_command; | |
1230 | ||
1231 | US_DEBUGP("Protocol changed to: %s\n", us->protocol_name); | |
1232 | ||
1233 | /* Free driver structure */ | |
1234 | us->extra_destructor(info); | |
ba2ef3b3 | 1235 | kfree(info); |
1da177e4 LT |
1236 | us->extra = NULL; |
1237 | us->extra_destructor = NULL; | |
1238 | } | |
1239 | } | |
1240 | ||
1241 | US_DEBUGP("Leaving isd200_get_inquiry_data %08X\n", retStatus); | |
1242 | ||
1243 | return(retStatus); | |
1244 | } | |
1245 | ||
1da177e4 LT |
1246 | /************************************************************************** |
1247 | * isd200_scsi_to_ata | |
1248 | * | |
1249 | * Translate SCSI commands to ATA commands. | |
1250 | * | |
1251 | * RETURNS: | |
1252 | * 1 if the command needs to be sent to the transport layer | |
1253 | * 0 otherwise | |
1254 | */ | |
1255 | static int isd200_scsi_to_ata(struct scsi_cmnd *srb, struct us_data *us, | |
1256 | union ata_cdb * ataCdb) | |
1257 | { | |
1258 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
1259 | struct hd_driveid *id = info->id; | |
1260 | int sendToTransport = 1; | |
1261 | unsigned char sectnum, head; | |
1262 | unsigned short cylinder; | |
1263 | unsigned long lba; | |
1264 | unsigned long blockCount; | |
1265 | unsigned char senseData[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; | |
1266 | ||
1267 | memset(ataCdb, 0, sizeof(union ata_cdb)); | |
1268 | ||
1269 | /* SCSI Command */ | |
1270 | switch (srb->cmnd[0]) { | |
1271 | case INQUIRY: | |
1272 | US_DEBUGP(" ATA OUT - INQUIRY\n"); | |
1273 | ||
1274 | /* copy InquiryData */ | |
1275 | usb_stor_set_xfer_buf((unsigned char *) &info->InquiryData, | |
1276 | sizeof(info->InquiryData), srb); | |
1277 | srb->result = SAM_STAT_GOOD; | |
1278 | sendToTransport = 0; | |
1279 | break; | |
1280 | ||
1281 | case MODE_SENSE: | |
1282 | US_DEBUGP(" ATA OUT - SCSIOP_MODE_SENSE\n"); | |
1283 | ||
1284 | /* Initialize the return buffer */ | |
1285 | usb_stor_set_xfer_buf(senseData, sizeof(senseData), srb); | |
1286 | ||
1287 | if (info->DeviceFlags & DF_MEDIA_STATUS_ENABLED) | |
1288 | { | |
1289 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1290 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1291 | ataCdb->generic.TransferBlockSize = 1; | |
1292 | ataCdb->generic.RegisterSelect = REG_COMMAND; | |
1293 | ataCdb->write.CommandByte = ATA_COMMAND_GET_MEDIA_STATUS; | |
48c23d3e | 1294 | isd200_srb_set_bufflen(srb, 0); |
1da177e4 LT |
1295 | } else { |
1296 | US_DEBUGP(" Media Status not supported, just report okay\n"); | |
1297 | srb->result = SAM_STAT_GOOD; | |
1298 | sendToTransport = 0; | |
1299 | } | |
1300 | break; | |
1301 | ||
1302 | case TEST_UNIT_READY: | |
1303 | US_DEBUGP(" ATA OUT - SCSIOP_TEST_UNIT_READY\n"); | |
1304 | ||
1305 | if (info->DeviceFlags & DF_MEDIA_STATUS_ENABLED) | |
1306 | { | |
1307 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1308 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1309 | ataCdb->generic.TransferBlockSize = 1; | |
1310 | ataCdb->generic.RegisterSelect = REG_COMMAND; | |
1311 | ataCdb->write.CommandByte = ATA_COMMAND_GET_MEDIA_STATUS; | |
48c23d3e | 1312 | isd200_srb_set_bufflen(srb, 0); |
1da177e4 LT |
1313 | } else { |
1314 | US_DEBUGP(" Media Status not supported, just report okay\n"); | |
1315 | srb->result = SAM_STAT_GOOD; | |
1316 | sendToTransport = 0; | |
1317 | } | |
1318 | break; | |
1319 | ||
1320 | case READ_CAPACITY: | |
1321 | { | |
1322 | unsigned long capacity; | |
1323 | struct read_capacity_data readCapacityData; | |
1324 | ||
1325 | US_DEBUGP(" ATA OUT - SCSIOP_READ_CAPACITY\n"); | |
1326 | ||
1327 | if (id->capability & CAPABILITY_LBA ) { | |
1328 | capacity = id->lba_capacity - 1; | |
1329 | } else { | |
1330 | capacity = (id->heads * | |
1331 | id->cyls * | |
1332 | id->sectors) - 1; | |
1333 | } | |
1334 | readCapacityData.LogicalBlockAddress = cpu_to_be32(capacity); | |
1335 | readCapacityData.BytesPerBlock = cpu_to_be32(0x200); | |
1336 | ||
1337 | usb_stor_set_xfer_buf((unsigned char *) &readCapacityData, | |
1338 | sizeof(readCapacityData), srb); | |
1339 | srb->result = SAM_STAT_GOOD; | |
1340 | sendToTransport = 0; | |
1341 | } | |
1342 | break; | |
1343 | ||
1344 | case READ_10: | |
1345 | US_DEBUGP(" ATA OUT - SCSIOP_READ\n"); | |
1346 | ||
1347 | lba = be32_to_cpu(*(__be32 *)&srb->cmnd[2]); | |
1348 | blockCount = (unsigned long)srb->cmnd[7]<<8 | (unsigned long)srb->cmnd[8]; | |
1349 | ||
1350 | if (id->capability & CAPABILITY_LBA) { | |
1351 | sectnum = (unsigned char)(lba); | |
1352 | cylinder = (unsigned short)(lba>>8); | |
1353 | head = ATA_ADDRESS_DEVHEAD_LBA_MODE | (unsigned char)(lba>>24 & 0x0F); | |
1354 | } else { | |
1355 | sectnum = (unsigned char)((lba % id->sectors) + 1); | |
1356 | cylinder = (unsigned short)(lba / (id->sectors * | |
1357 | id->heads)); | |
1358 | head = (unsigned char)((lba / id->sectors) % | |
1359 | id->heads); | |
1360 | } | |
1361 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1362 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1363 | ataCdb->generic.TransferBlockSize = 1; | |
1364 | ataCdb->generic.RegisterSelect = | |
1365 | REG_SECTOR_COUNT | REG_SECTOR_NUMBER | | |
1366 | REG_CYLINDER_LOW | REG_CYLINDER_HIGH | | |
1367 | REG_DEVICE_HEAD | REG_COMMAND; | |
1368 | ataCdb->write.SectorCountByte = (unsigned char)blockCount; | |
1369 | ataCdb->write.SectorNumberByte = sectnum; | |
1370 | ataCdb->write.CylinderHighByte = (unsigned char)(cylinder>>8); | |
1371 | ataCdb->write.CylinderLowByte = (unsigned char)cylinder; | |
1372 | ataCdb->write.DeviceHeadByte = (head | ATA_ADDRESS_DEVHEAD_STD); | |
1373 | ataCdb->write.CommandByte = WIN_READ; | |
1374 | break; | |
1375 | ||
1376 | case WRITE_10: | |
1377 | US_DEBUGP(" ATA OUT - SCSIOP_WRITE\n"); | |
1378 | ||
1379 | lba = be32_to_cpu(*(__be32 *)&srb->cmnd[2]); | |
1380 | blockCount = (unsigned long)srb->cmnd[7]<<8 | (unsigned long)srb->cmnd[8]; | |
1381 | ||
1382 | if (id->capability & CAPABILITY_LBA) { | |
1383 | sectnum = (unsigned char)(lba); | |
1384 | cylinder = (unsigned short)(lba>>8); | |
1385 | head = ATA_ADDRESS_DEVHEAD_LBA_MODE | (unsigned char)(lba>>24 & 0x0F); | |
1386 | } else { | |
1387 | sectnum = (unsigned char)((lba % id->sectors) + 1); | |
1388 | cylinder = (unsigned short)(lba / (id->sectors * id->heads)); | |
1389 | head = (unsigned char)((lba / id->sectors) % id->heads); | |
1390 | } | |
1391 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1392 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1393 | ataCdb->generic.TransferBlockSize = 1; | |
1394 | ataCdb->generic.RegisterSelect = | |
1395 | REG_SECTOR_COUNT | REG_SECTOR_NUMBER | | |
1396 | REG_CYLINDER_LOW | REG_CYLINDER_HIGH | | |
1397 | REG_DEVICE_HEAD | REG_COMMAND; | |
1398 | ataCdb->write.SectorCountByte = (unsigned char)blockCount; | |
1399 | ataCdb->write.SectorNumberByte = sectnum; | |
1400 | ataCdb->write.CylinderHighByte = (unsigned char)(cylinder>>8); | |
1401 | ataCdb->write.CylinderLowByte = (unsigned char)cylinder; | |
1402 | ataCdb->write.DeviceHeadByte = (head | ATA_ADDRESS_DEVHEAD_STD); | |
1403 | ataCdb->write.CommandByte = WIN_WRITE; | |
1404 | break; | |
1405 | ||
1406 | case ALLOW_MEDIUM_REMOVAL: | |
1407 | US_DEBUGP(" ATA OUT - SCSIOP_MEDIUM_REMOVAL\n"); | |
1408 | ||
1409 | if (info->DeviceFlags & DF_REMOVABLE_MEDIA) { | |
1410 | US_DEBUGP(" srb->cmnd[4] = 0x%X\n", srb->cmnd[4]); | |
1411 | ||
1412 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1413 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1414 | ataCdb->generic.TransferBlockSize = 1; | |
1415 | ataCdb->generic.RegisterSelect = REG_COMMAND; | |
1416 | ataCdb->write.CommandByte = (srb->cmnd[4] & 0x1) ? | |
1417 | WIN_DOORLOCK : WIN_DOORUNLOCK; | |
48c23d3e | 1418 | isd200_srb_set_bufflen(srb, 0); |
1da177e4 LT |
1419 | } else { |
1420 | US_DEBUGP(" Not removeable media, just report okay\n"); | |
1421 | srb->result = SAM_STAT_GOOD; | |
1422 | sendToTransport = 0; | |
1423 | } | |
1424 | break; | |
1425 | ||
1426 | case START_STOP: | |
1427 | US_DEBUGP(" ATA OUT - SCSIOP_START_STOP_UNIT\n"); | |
1428 | US_DEBUGP(" srb->cmnd[4] = 0x%X\n", srb->cmnd[4]); | |
1429 | ||
1430 | if ((srb->cmnd[4] & 0x3) == 0x2) { | |
1431 | US_DEBUGP(" Media Eject\n"); | |
1432 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1433 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1434 | ataCdb->generic.TransferBlockSize = 0; | |
1435 | ataCdb->generic.RegisterSelect = REG_COMMAND; | |
1436 | ataCdb->write.CommandByte = ATA_COMMAND_MEDIA_EJECT; | |
1437 | } else if ((srb->cmnd[4] & 0x3) == 0x1) { | |
1438 | US_DEBUGP(" Get Media Status\n"); | |
1439 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1440 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1441 | ataCdb->generic.TransferBlockSize = 1; | |
1442 | ataCdb->generic.RegisterSelect = REG_COMMAND; | |
1443 | ataCdb->write.CommandByte = ATA_COMMAND_GET_MEDIA_STATUS; | |
48c23d3e | 1444 | isd200_srb_set_bufflen(srb, 0); |
1da177e4 LT |
1445 | } else { |
1446 | US_DEBUGP(" Nothing to do, just report okay\n"); | |
1447 | srb->result = SAM_STAT_GOOD; | |
1448 | sendToTransport = 0; | |
1449 | } | |
1450 | break; | |
1451 | ||
1452 | default: | |
1453 | US_DEBUGP("Unsupported SCSI command - 0x%X\n", srb->cmnd[0]); | |
1454 | srb->result = DID_ERROR << 16; | |
1455 | sendToTransport = 0; | |
1456 | break; | |
1457 | } | |
1458 | ||
1459 | return(sendToTransport); | |
1460 | } | |
1461 | ||
1462 | ||
1463 | /************************************************************************** | |
1464 | * isd200_free_info | |
1465 | * | |
1466 | * Frees the driver structure. | |
1467 | */ | |
1468 | static void isd200_free_info_ptrs(void *info_) | |
1469 | { | |
1470 | struct isd200_info *info = (struct isd200_info *) info_; | |
1471 | ||
1472 | if (info) { | |
1473 | kfree(info->id); | |
1474 | kfree(info->RegsBuf); | |
e92e63aa | 1475 | kfree(info->srb.sense_buffer); |
1da177e4 LT |
1476 | } |
1477 | } | |
1478 | ||
1479 | /************************************************************************** | |
1480 | * isd200_init_info | |
1481 | * | |
1482 | * Allocates (if necessary) and initializes the driver structure. | |
1483 | * | |
1484 | * RETURNS: | |
1485 | * ISD status code | |
1486 | */ | |
1487 | static int isd200_init_info(struct us_data *us) | |
1488 | { | |
1489 | int retStatus = ISD200_GOOD; | |
1490 | struct isd200_info *info; | |
1491 | ||
1492 | info = (struct isd200_info *) | |
887c2560 | 1493 | kzalloc(sizeof(struct isd200_info), GFP_KERNEL); |
1da177e4 LT |
1494 | if (!info) |
1495 | retStatus = ISD200_ERROR; | |
1496 | else { | |
1da177e4 | 1497 | info->id = (struct hd_driveid *) |
887c2560 | 1498 | kzalloc(sizeof(struct hd_driveid), GFP_KERNEL); |
1da177e4 LT |
1499 | info->RegsBuf = (unsigned char *) |
1500 | kmalloc(sizeof(info->ATARegs), GFP_KERNEL); | |
e92e63aa BH |
1501 | info->srb.sense_buffer = |
1502 | kmalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL); | |
1503 | if (!info->id || !info->RegsBuf || !info->srb.sense_buffer) { | |
1da177e4 LT |
1504 | isd200_free_info_ptrs(info); |
1505 | kfree(info); | |
1506 | retStatus = ISD200_ERROR; | |
887c2560 | 1507 | } |
1da177e4 LT |
1508 | } |
1509 | ||
1510 | if (retStatus == ISD200_GOOD) { | |
1511 | us->extra = info; | |
1512 | us->extra_destructor = isd200_free_info_ptrs; | |
1513 | } else | |
1514 | US_DEBUGP("ERROR - kmalloc failure\n"); | |
1515 | ||
80b6ca48 | 1516 | return retStatus; |
1da177e4 LT |
1517 | } |
1518 | ||
1519 | /************************************************************************** | |
1520 | * Initialization for the ISD200 | |
1521 | */ | |
1522 | ||
1523 | int isd200_Initialization(struct us_data *us) | |
1524 | { | |
1525 | US_DEBUGP("ISD200 Initialization...\n"); | |
1526 | ||
1527 | /* Initialize ISD200 info struct */ | |
1528 | ||
1529 | if (isd200_init_info(us) == ISD200_ERROR) { | |
1530 | US_DEBUGP("ERROR Initializing ISD200 Info struct\n"); | |
1531 | } else { | |
1532 | /* Get device specific data */ | |
1533 | ||
1534 | if (isd200_get_inquiry_data(us) != ISD200_GOOD) | |
1535 | US_DEBUGP("ISD200 Initialization Failure\n"); | |
1536 | else | |
1537 | US_DEBUGP("ISD200 Initialization complete\n"); | |
1538 | } | |
1539 | ||
1540 | return 0; | |
1541 | } | |
1542 | ||
1543 | ||
1544 | /************************************************************************** | |
1545 | * Protocol and Transport for the ISD200 ASIC | |
1546 | * | |
1547 | * This protocol and transport are for ATA devices connected to an ISD200 | |
1548 | * ASIC. An ATAPI device that is conected as a slave device will be | |
1549 | * detected in the driver initialization function and the protocol will | |
1550 | * be changed to an ATAPI protocol (Transparent SCSI). | |
1551 | * | |
1552 | */ | |
1553 | ||
1554 | void isd200_ata_command(struct scsi_cmnd *srb, struct us_data *us) | |
1555 | { | |
48c23d3e | 1556 | int sendToTransport = 1, orig_bufflen; |
1da177e4 LT |
1557 | union ata_cdb ataCdb; |
1558 | ||
1559 | /* Make sure driver was initialized */ | |
1560 | ||
1561 | if (us->extra == NULL) | |
1562 | US_DEBUGP("ERROR Driver not initialized\n"); | |
1563 | ||
48c23d3e BH |
1564 | scsi_set_resid(srb, 0); |
1565 | /* scsi_bufflen might change in protocol translation to ata */ | |
1566 | orig_bufflen = scsi_bufflen(srb); | |
1da177e4 LT |
1567 | sendToTransport = isd200_scsi_to_ata(srb, us, &ataCdb); |
1568 | ||
1569 | /* send the command to the transport layer */ | |
1570 | if (sendToTransport) | |
1571 | isd200_invoke_transport(us, srb, &ataCdb); | |
48c23d3e BH |
1572 | |
1573 | isd200_srb_set_bufflen(srb, orig_bufflen); | |
1da177e4 | 1574 | } |