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5fd54ace | 1 | // SPDX-License-Identifier: GPL-2.0+ |
f0183a33 FB |
2 | /* |
3 | * Transport & Protocol Driver for In-System Design, Inc. ISD200 ASIC | |
1da177e4 LT |
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 | * | |
1da177e4 LT |
18 | * History: |
19 | * | |
20 | * 2002-10-19: Removed the specialized transfer routines. | |
21 | * (Alan Stern <stern@rowland.harvard.edu>) | |
22 | * 2001-02-24: Removed lots of duplicate code and simplified the structure. | |
23 | * (bjorn@haxx.se) | |
24 | * 2002-01-16: Fixed endianness bug so it works on the ppc arch. | |
25 | * (Luc Saillard <luc@saillard.org>) | |
26 | * 2002-01-17: All bitfields removed. | |
27 | * (bjorn@haxx.se) | |
28 | */ | |
29 | ||
30 | ||
31 | /* Include files */ | |
32 | ||
33 | #include <linux/jiffies.h> | |
34 | #include <linux/errno.h> | |
32d5493e | 35 | #include <linux/module.h> |
1da177e4 | 36 | #include <linux/slab.h> |
d8881cda | 37 | #include <linux/ata.h> |
1da177e4 | 38 | #include <linux/hdreg.h> |
48c23d3e | 39 | #include <linux/scatterlist.h> |
1da177e4 LT |
40 | |
41 | #include <scsi/scsi.h> | |
42 | #include <scsi/scsi_cmnd.h> | |
43 | #include <scsi/scsi_device.h> | |
44 | ||
45 | #include "usb.h" | |
46 | #include "transport.h" | |
47 | #include "protocol.h" | |
48 | #include "debug.h" | |
49 | #include "scsiglue.h" | |
32d5493e | 50 | |
aa519be3 AM |
51 | #define DRV_NAME "ums-isd200" |
52 | ||
4246b06a | 53 | MODULE_DESCRIPTION("Driver for In-System Design, Inc. ISD200 ASIC"); |
d36b6910 | 54 | MODULE_AUTHOR("Björn Stenberg <bjorn@haxx.se>"); |
4246b06a | 55 | MODULE_LICENSE("GPL"); |
32d5493e AS |
56 | |
57 | static int isd200_Initialization(struct us_data *us); | |
58 | ||
59 | ||
60 | /* | |
61 | * The table of devices | |
62 | */ | |
63 | #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \ | |
64 | vendorName, productName, useProtocol, useTransport, \ | |
65 | initFunction, flags) \ | |
66 | { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ | |
f61870ee | 67 | .driver_info = (flags) } |
32d5493e | 68 | |
e7724baf | 69 | static struct usb_device_id isd200_usb_ids[] = { |
32d5493e AS |
70 | # include "unusual_isd200.h" |
71 | { } /* Terminating entry */ | |
72 | }; | |
73 | MODULE_DEVICE_TABLE(usb, isd200_usb_ids); | |
74 | ||
75 | #undef UNUSUAL_DEV | |
32d5493e AS |
76 | |
77 | /* | |
78 | * The flags table | |
79 | */ | |
80 | #define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \ | |
81 | vendor_name, product_name, use_protocol, use_transport, \ | |
82 | init_function, Flags) \ | |
83 | { \ | |
84 | .vendorName = vendor_name, \ | |
85 | .productName = product_name, \ | |
86 | .useProtocol = use_protocol, \ | |
87 | .useTransport = use_transport, \ | |
88 | .initFunction = init_function, \ | |
89 | } | |
90 | ||
91 | static struct us_unusual_dev isd200_unusual_dev_list[] = { | |
92 | # include "unusual_isd200.h" | |
93 | { } /* Terminating entry */ | |
94 | }; | |
95 | ||
96 | #undef UNUSUAL_DEV | |
1da177e4 LT |
97 | |
98 | /* Timeout defines (in Seconds) */ | |
99 | ||
100 | #define ISD200_ENUM_BSY_TIMEOUT 35 | |
101 | #define ISD200_ENUM_DETECT_TIMEOUT 30 | |
102 | #define ISD200_DEFAULT_TIMEOUT 30 | |
103 | ||
104 | /* device flags */ | |
105 | #define DF_ATA_DEVICE 0x0001 | |
106 | #define DF_MEDIA_STATUS_ENABLED 0x0002 | |
107 | #define DF_REMOVABLE_MEDIA 0x0004 | |
108 | ||
109 | /* capability bit definitions */ | |
110 | #define CAPABILITY_DMA 0x01 | |
111 | #define CAPABILITY_LBA 0x02 | |
112 | ||
113 | /* command_setX bit definitions */ | |
114 | #define COMMANDSET_REMOVABLE 0x02 | |
115 | #define COMMANDSET_MEDIA_STATUS 0x10 | |
116 | ||
117 | /* ATA Vendor Specific defines */ | |
118 | #define ATA_ADDRESS_DEVHEAD_STD 0xa0 | |
119 | #define ATA_ADDRESS_DEVHEAD_LBA_MODE 0x40 | |
120 | #define ATA_ADDRESS_DEVHEAD_SLAVE 0x10 | |
121 | ||
122 | /* Action Select bits */ | |
123 | #define ACTION_SELECT_0 0x01 | |
124 | #define ACTION_SELECT_1 0x02 | |
125 | #define ACTION_SELECT_2 0x04 | |
126 | #define ACTION_SELECT_3 0x08 | |
127 | #define ACTION_SELECT_4 0x10 | |
128 | #define ACTION_SELECT_5 0x20 | |
129 | #define ACTION_SELECT_6 0x40 | |
130 | #define ACTION_SELECT_7 0x80 | |
131 | ||
132 | /* Register Select bits */ | |
133 | #define REG_ALTERNATE_STATUS 0x01 | |
134 | #define REG_DEVICE_CONTROL 0x01 | |
135 | #define REG_ERROR 0x02 | |
136 | #define REG_FEATURES 0x02 | |
137 | #define REG_SECTOR_COUNT 0x04 | |
138 | #define REG_SECTOR_NUMBER 0x08 | |
139 | #define REG_CYLINDER_LOW 0x10 | |
140 | #define REG_CYLINDER_HIGH 0x20 | |
141 | #define REG_DEVICE_HEAD 0x40 | |
142 | #define REG_STATUS 0x80 | |
143 | #define REG_COMMAND 0x80 | |
144 | ||
c74e8095 BZ |
145 | /* ATA registers offset definitions */ |
146 | #define ATA_REG_ERROR_OFFSET 1 | |
147 | #define ATA_REG_LCYL_OFFSET 4 | |
148 | #define ATA_REG_HCYL_OFFSET 5 | |
149 | #define ATA_REG_STATUS_OFFSET 7 | |
150 | ||
1da177e4 LT |
151 | /* ATA error definitions not in <linux/hdreg.h> */ |
152 | #define ATA_ERROR_MEDIA_CHANGE 0x20 | |
153 | ||
154 | /* ATA command definitions not in <linux/hdreg.h> */ | |
155 | #define ATA_COMMAND_GET_MEDIA_STATUS 0xDA | |
156 | #define ATA_COMMAND_MEDIA_EJECT 0xED | |
157 | ||
158 | /* ATA drive control definitions */ | |
159 | #define ATA_DC_DISABLE_INTERRUPTS 0x02 | |
160 | #define ATA_DC_RESET_CONTROLLER 0x04 | |
161 | #define ATA_DC_REENABLE_CONTROLLER 0x00 | |
162 | ||
163 | /* | |
164 | * General purpose return codes | |
165 | */ | |
166 | ||
167 | #define ISD200_ERROR -1 | |
168 | #define ISD200_GOOD 0 | |
169 | ||
170 | /* | |
171 | * Transport return codes | |
172 | */ | |
173 | ||
174 | #define ISD200_TRANSPORT_GOOD 0 /* Transport good, command good */ | |
175 | #define ISD200_TRANSPORT_FAILED 1 /* Transport good, command failed */ | |
176 | #define ISD200_TRANSPORT_ERROR 2 /* Transport bad (i.e. device dead) */ | |
177 | ||
178 | /* driver action codes */ | |
179 | #define ACTION_READ_STATUS 0 | |
180 | #define ACTION_RESET 1 | |
181 | #define ACTION_REENABLE 2 | |
182 | #define ACTION_SOFT_RESET 3 | |
183 | #define ACTION_ENUM 4 | |
184 | #define ACTION_IDENTIFY 5 | |
185 | ||
186 | ||
187 | /* | |
188 | * ata_cdb struct | |
189 | */ | |
190 | ||
191 | ||
192 | union ata_cdb { | |
193 | struct { | |
194 | unsigned char SignatureByte0; | |
195 | unsigned char SignatureByte1; | |
196 | unsigned char ActionSelect; | |
197 | unsigned char RegisterSelect; | |
198 | unsigned char TransferBlockSize; | |
199 | unsigned char WriteData3F6; | |
200 | unsigned char WriteData1F1; | |
201 | unsigned char WriteData1F2; | |
202 | unsigned char WriteData1F3; | |
203 | unsigned char WriteData1F4; | |
204 | unsigned char WriteData1F5; | |
205 | unsigned char WriteData1F6; | |
206 | unsigned char WriteData1F7; | |
207 | unsigned char Reserved[3]; | |
208 | } generic; | |
209 | ||
210 | struct { | |
211 | unsigned char SignatureByte0; | |
212 | unsigned char SignatureByte1; | |
213 | unsigned char ActionSelect; | |
214 | unsigned char RegisterSelect; | |
215 | unsigned char TransferBlockSize; | |
216 | unsigned char AlternateStatusByte; | |
217 | unsigned char ErrorByte; | |
218 | unsigned char SectorCountByte; | |
219 | unsigned char SectorNumberByte; | |
220 | unsigned char CylinderLowByte; | |
221 | unsigned char CylinderHighByte; | |
222 | unsigned char DeviceHeadByte; | |
223 | unsigned char StatusByte; | |
224 | unsigned char Reserved[3]; | |
225 | } read; | |
226 | ||
227 | struct { | |
228 | unsigned char SignatureByte0; | |
229 | unsigned char SignatureByte1; | |
230 | unsigned char ActionSelect; | |
231 | unsigned char RegisterSelect; | |
232 | unsigned char TransferBlockSize; | |
233 | unsigned char DeviceControlByte; | |
234 | unsigned char FeaturesByte; | |
235 | unsigned char SectorCountByte; | |
236 | unsigned char SectorNumberByte; | |
237 | unsigned char CylinderLowByte; | |
238 | unsigned char CylinderHighByte; | |
239 | unsigned char DeviceHeadByte; | |
240 | unsigned char CommandByte; | |
241 | unsigned char Reserved[3]; | |
242 | } write; | |
243 | }; | |
244 | ||
245 | ||
246 | /* | |
247 | * Inquiry data structure. This is the data returned from the target | |
248 | * after it receives an inquiry. | |
249 | * | |
250 | * This structure may be extended by the number of bytes specified | |
251 | * in the field AdditionalLength. The defined size constant only | |
252 | * includes fields through ProductRevisionLevel. | |
253 | */ | |
254 | ||
255 | /* | |
256 | * DeviceType field | |
257 | */ | |
258 | #define DIRECT_ACCESS_DEVICE 0x00 /* disks */ | |
259 | #define DEVICE_REMOVABLE 0x80 | |
260 | ||
261 | struct inquiry_data { | |
262 | unsigned char DeviceType; | |
263 | unsigned char DeviceTypeModifier; | |
264 | unsigned char Versions; | |
265 | unsigned char Format; | |
266 | unsigned char AdditionalLength; | |
267 | unsigned char Reserved[2]; | |
268 | unsigned char Capability; | |
269 | unsigned char VendorId[8]; | |
270 | unsigned char ProductId[16]; | |
271 | unsigned char ProductRevisionLevel[4]; | |
272 | unsigned char VendorSpecific[20]; | |
273 | unsigned char Reserved3[40]; | |
274 | } __attribute__ ((packed)); | |
275 | ||
276 | /* | |
277 | * INQUIRY data buffer size | |
278 | */ | |
279 | ||
280 | #define INQUIRYDATABUFFERSIZE 36 | |
281 | ||
282 | ||
283 | /* | |
284 | * ISD200 CONFIG data struct | |
285 | */ | |
286 | ||
287 | #define ATACFG_TIMING 0x0f | |
288 | #define ATACFG_ATAPI_RESET 0x10 | |
289 | #define ATACFG_MASTER 0x20 | |
290 | #define ATACFG_BLOCKSIZE 0xa0 | |
291 | ||
292 | #define ATACFGE_LAST_LUN 0x07 | |
293 | #define ATACFGE_DESC_OVERRIDE 0x08 | |
294 | #define ATACFGE_STATE_SUSPEND 0x10 | |
295 | #define ATACFGE_SKIP_BOOT 0x20 | |
296 | #define ATACFGE_CONF_DESC2 0x40 | |
297 | #define ATACFGE_INIT_STATUS 0x80 | |
298 | ||
299 | #define CFG_CAPABILITY_SRST 0x01 | |
300 | ||
301 | struct isd200_config { | |
302 | unsigned char EventNotification; | |
303 | unsigned char ExternalClock; | |
304 | unsigned char ATAInitTimeout; | |
305 | unsigned char ATAConfig; | |
306 | unsigned char ATAMajorCommand; | |
307 | unsigned char ATAMinorCommand; | |
308 | unsigned char ATAExtraConfig; | |
309 | unsigned char Capability; | |
310 | }__attribute__ ((packed)); | |
311 | ||
312 | ||
313 | /* | |
314 | * ISD200 driver information struct | |
315 | */ | |
316 | ||
317 | struct isd200_info { | |
318 | struct inquiry_data InquiryData; | |
d8881cda | 319 | u16 *id; |
1da177e4 LT |
320 | struct isd200_config ConfigData; |
321 | unsigned char *RegsBuf; | |
322 | unsigned char ATARegs[8]; | |
323 | unsigned char DeviceHead; | |
324 | unsigned char DeviceFlags; | |
325 | ||
326 | /* maximum number of LUNs supported */ | |
327 | unsigned char MaxLUNs; | |
64a87b24 | 328 | unsigned char cmnd[BLK_MAX_CDB]; |
1da177e4 | 329 | struct scsi_cmnd srb; |
48c23d3e | 330 | struct scatterlist sg; |
1da177e4 LT |
331 | }; |
332 | ||
333 | ||
334 | /* | |
335 | * Read Capacity Data - returned in Big Endian format | |
336 | */ | |
337 | ||
338 | struct read_capacity_data { | |
339 | __be32 LogicalBlockAddress; | |
340 | __be32 BytesPerBlock; | |
341 | }; | |
342 | ||
343 | /* | |
344 | * Read Block Limits Data - returned in Big Endian format | |
345 | * This structure returns the maximum and minimum block | |
346 | * size for a TAPE device. | |
347 | */ | |
348 | ||
349 | struct read_block_limits { | |
350 | unsigned char Reserved; | |
351 | unsigned char BlockMaximumSize[3]; | |
352 | unsigned char BlockMinimumSize[2]; | |
353 | }; | |
354 | ||
355 | ||
356 | /* | |
357 | * Sense Data Format | |
358 | */ | |
359 | ||
360 | #define SENSE_ERRCODE 0x7f | |
361 | #define SENSE_ERRCODE_VALID 0x80 | |
362 | #define SENSE_FLAG_SENSE_KEY 0x0f | |
363 | #define SENSE_FLAG_BAD_LENGTH 0x20 | |
364 | #define SENSE_FLAG_END_OF_MEDIA 0x40 | |
365 | #define SENSE_FLAG_FILE_MARK 0x80 | |
366 | struct sense_data { | |
367 | unsigned char ErrorCode; | |
368 | unsigned char SegmentNumber; | |
369 | unsigned char Flags; | |
370 | unsigned char Information[4]; | |
371 | unsigned char AdditionalSenseLength; | |
372 | unsigned char CommandSpecificInformation[4]; | |
373 | unsigned char AdditionalSenseCode; | |
374 | unsigned char AdditionalSenseCodeQualifier; | |
375 | unsigned char FieldReplaceableUnitCode; | |
376 | unsigned char SenseKeySpecific[3]; | |
377 | } __attribute__ ((packed)); | |
378 | ||
379 | /* | |
380 | * Default request sense buffer size | |
381 | */ | |
382 | ||
383 | #define SENSE_BUFFER_SIZE 18 | |
384 | ||
385 | /*********************************************************************** | |
386 | * Helper routines | |
387 | ***********************************************************************/ | |
388 | ||
389 | /************************************************************************** | |
390 | * isd200_build_sense | |
391 | * | |
392 | * Builds an artificial sense buffer to report the results of a | |
393 | * failed command. | |
394 | * | |
395 | * RETURNS: | |
396 | * void | |
397 | */ | |
398 | static void isd200_build_sense(struct us_data *us, struct scsi_cmnd *srb) | |
399 | { | |
400 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
401 | struct sense_data *buf = (struct sense_data *) &srb->sense_buffer[0]; | |
c74e8095 | 402 | unsigned char error = info->ATARegs[ATA_REG_ERROR_OFFSET]; |
1da177e4 LT |
403 | |
404 | if(error & ATA_ERROR_MEDIA_CHANGE) { | |
405 | buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID; | |
406 | buf->AdditionalSenseLength = 0xb; | |
407 | buf->Flags = UNIT_ATTENTION; | |
408 | buf->AdditionalSenseCode = 0; | |
409 | buf->AdditionalSenseCodeQualifier = 0; | |
fcd3ec69 | 410 | } else if (error & ATA_MCR) { |
1da177e4 LT |
411 | buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID; |
412 | buf->AdditionalSenseLength = 0xb; | |
413 | buf->Flags = UNIT_ATTENTION; | |
414 | buf->AdditionalSenseCode = 0; | |
415 | buf->AdditionalSenseCodeQualifier = 0; | |
fcd3ec69 | 416 | } else if (error & ATA_TRK0NF) { |
1da177e4 LT |
417 | buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID; |
418 | buf->AdditionalSenseLength = 0xb; | |
419 | buf->Flags = NOT_READY; | |
420 | buf->AdditionalSenseCode = 0; | |
421 | buf->AdditionalSenseCodeQualifier = 0; | |
fcd3ec69 | 422 | } else if (error & ATA_UNC) { |
1da177e4 LT |
423 | buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID; |
424 | buf->AdditionalSenseLength = 0xb; | |
425 | buf->Flags = DATA_PROTECT; | |
426 | buf->AdditionalSenseCode = 0; | |
427 | buf->AdditionalSenseCodeQualifier = 0; | |
428 | } else { | |
429 | buf->ErrorCode = 0; | |
430 | buf->AdditionalSenseLength = 0; | |
431 | buf->Flags = 0; | |
432 | buf->AdditionalSenseCode = 0; | |
433 | buf->AdditionalSenseCodeQualifier = 0; | |
434 | } | |
435 | } | |
436 | ||
437 | ||
438 | /*********************************************************************** | |
439 | * Transport routines | |
440 | ***********************************************************************/ | |
441 | ||
48c23d3e BH |
442 | /************************************************************************** |
443 | * isd200_set_srb(), isd200_srb_set_bufflen() | |
444 | * | |
445 | * Two helpers to facilitate in initialization of scsi_cmnd structure | |
446 | * Will need to change when struct scsi_cmnd changes | |
447 | */ | |
448 | static void isd200_set_srb(struct isd200_info *info, | |
449 | enum dma_data_direction dir, void* buff, unsigned bufflen) | |
450 | { | |
451 | struct scsi_cmnd *srb = &info->srb; | |
452 | ||
453 | if (buff) | |
454 | sg_init_one(&info->sg, buff, bufflen); | |
455 | ||
456 | srb->sc_data_direction = dir; | |
30b0c37b BH |
457 | srb->sdb.table.sgl = buff ? &info->sg : NULL; |
458 | srb->sdb.length = bufflen; | |
459 | srb->sdb.table.nents = buff ? 1 : 0; | |
48c23d3e BH |
460 | } |
461 | ||
462 | static void isd200_srb_set_bufflen(struct scsi_cmnd *srb, unsigned bufflen) | |
463 | { | |
30b0c37b | 464 | srb->sdb.length = bufflen; |
48c23d3e BH |
465 | } |
466 | ||
1da177e4 LT |
467 | |
468 | /************************************************************************** | |
469 | * isd200_action | |
470 | * | |
471 | * Routine for sending commands to the isd200 | |
472 | * | |
473 | * RETURNS: | |
474 | * ISD status code | |
475 | */ | |
476 | static int isd200_action( struct us_data *us, int action, | |
477 | void* pointer, int value ) | |
478 | { | |
479 | union ata_cdb ata; | |
0df4d8ef IM |
480 | /* static to prevent this large struct being placed on the valuable stack */ |
481 | static struct scsi_device srb_dev; | |
1da177e4 LT |
482 | struct isd200_info *info = (struct isd200_info *)us->extra; |
483 | struct scsi_cmnd *srb = &info->srb; | |
484 | int status; | |
485 | ||
486 | memset(&ata, 0, sizeof(ata)); | |
64a87b24 | 487 | srb->cmnd = info->cmnd; |
1da177e4 | 488 | srb->device = &srb_dev; |
1da177e4 LT |
489 | |
490 | ata.generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
491 | ata.generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
492 | ata.generic.TransferBlockSize = 1; | |
493 | ||
494 | switch ( action ) { | |
495 | case ACTION_READ_STATUS: | |
191648d0 | 496 | usb_stor_dbg(us, " isd200_action(READ_STATUS)\n"); |
1da177e4 LT |
497 | ata.generic.ActionSelect = ACTION_SELECT_0|ACTION_SELECT_2; |
498 | ata.generic.RegisterSelect = | |
499 | REG_CYLINDER_LOW | REG_CYLINDER_HIGH | | |
500 | REG_STATUS | REG_ERROR; | |
48c23d3e | 501 | isd200_set_srb(info, DMA_FROM_DEVICE, pointer, value); |
1da177e4 LT |
502 | break; |
503 | ||
504 | case ACTION_ENUM: | |
191648d0 | 505 | usb_stor_dbg(us, " isd200_action(ENUM,0x%02x)\n", value); |
1da177e4 LT |
506 | ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_2| |
507 | ACTION_SELECT_3|ACTION_SELECT_4| | |
508 | ACTION_SELECT_5; | |
509 | ata.generic.RegisterSelect = REG_DEVICE_HEAD; | |
510 | ata.write.DeviceHeadByte = value; | |
48c23d3e | 511 | isd200_set_srb(info, DMA_NONE, NULL, 0); |
1da177e4 LT |
512 | break; |
513 | ||
514 | case ACTION_RESET: | |
191648d0 | 515 | usb_stor_dbg(us, " isd200_action(RESET)\n"); |
1da177e4 LT |
516 | ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_2| |
517 | ACTION_SELECT_3|ACTION_SELECT_4; | |
518 | ata.generic.RegisterSelect = REG_DEVICE_CONTROL; | |
519 | ata.write.DeviceControlByte = ATA_DC_RESET_CONTROLLER; | |
48c23d3e | 520 | isd200_set_srb(info, DMA_NONE, NULL, 0); |
1da177e4 LT |
521 | break; |
522 | ||
523 | case ACTION_REENABLE: | |
191648d0 | 524 | usb_stor_dbg(us, " isd200_action(REENABLE)\n"); |
1da177e4 LT |
525 | ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_2| |
526 | ACTION_SELECT_3|ACTION_SELECT_4; | |
527 | ata.generic.RegisterSelect = REG_DEVICE_CONTROL; | |
528 | ata.write.DeviceControlByte = ATA_DC_REENABLE_CONTROLLER; | |
48c23d3e | 529 | isd200_set_srb(info, DMA_NONE, NULL, 0); |
1da177e4 LT |
530 | break; |
531 | ||
532 | case ACTION_SOFT_RESET: | |
191648d0 | 533 | usb_stor_dbg(us, " isd200_action(SOFT_RESET)\n"); |
1da177e4 LT |
534 | ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_5; |
535 | ata.generic.RegisterSelect = REG_DEVICE_HEAD | REG_COMMAND; | |
536 | ata.write.DeviceHeadByte = info->DeviceHead; | |
f08f31f7 | 537 | ata.write.CommandByte = ATA_CMD_DEV_RESET; |
48c23d3e | 538 | isd200_set_srb(info, DMA_NONE, NULL, 0); |
1da177e4 LT |
539 | break; |
540 | ||
541 | case ACTION_IDENTIFY: | |
191648d0 | 542 | usb_stor_dbg(us, " isd200_action(IDENTIFY)\n"); |
1da177e4 | 543 | ata.generic.RegisterSelect = REG_COMMAND; |
f08f31f7 | 544 | ata.write.CommandByte = ATA_CMD_ID_ATA; |
48c23d3e | 545 | isd200_set_srb(info, DMA_FROM_DEVICE, info->id, |
d8881cda | 546 | ATA_ID_WORDS * 2); |
1da177e4 LT |
547 | break; |
548 | ||
549 | default: | |
191648d0 | 550 | usb_stor_dbg(us, "Error: Undefined action %d\n", action); |
48c23d3e | 551 | return ISD200_ERROR; |
1da177e4 LT |
552 | } |
553 | ||
554 | memcpy(srb->cmnd, &ata, sizeof(ata.generic)); | |
555 | srb->cmd_len = sizeof(ata.generic); | |
556 | status = usb_stor_Bulk_transport(srb, us); | |
557 | if (status == USB_STOR_TRANSPORT_GOOD) | |
558 | status = ISD200_GOOD; | |
559 | else { | |
191648d0 JP |
560 | usb_stor_dbg(us, " isd200_action(0x%02x) error: %d\n", |
561 | action, status); | |
1da177e4 LT |
562 | status = ISD200_ERROR; |
563 | /* need to reset device here */ | |
564 | } | |
565 | ||
566 | return status; | |
567 | } | |
568 | ||
569 | /************************************************************************** | |
570 | * isd200_read_regs | |
571 | * | |
572 | * Read ATA Registers | |
573 | * | |
574 | * RETURNS: | |
575 | * ISD status code | |
576 | */ | |
577 | static int isd200_read_regs( struct us_data *us ) | |
578 | { | |
579 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
580 | int retStatus = ISD200_GOOD; | |
581 | int transferStatus; | |
582 | ||
191648d0 | 583 | usb_stor_dbg(us, "Entering isd200_IssueATAReadRegs\n"); |
1da177e4 LT |
584 | |
585 | transferStatus = isd200_action( us, ACTION_READ_STATUS, | |
586 | info->RegsBuf, sizeof(info->ATARegs) ); | |
587 | if (transferStatus != ISD200_TRANSPORT_GOOD) { | |
191648d0 | 588 | usb_stor_dbg(us, " Error reading ATA registers\n"); |
1da177e4 LT |
589 | retStatus = ISD200_ERROR; |
590 | } else { | |
591 | memcpy(info->ATARegs, info->RegsBuf, sizeof(info->ATARegs)); | |
191648d0 JP |
592 | usb_stor_dbg(us, " Got ATA Register[ATA_REG_ERROR_OFFSET] = 0x%x\n", |
593 | info->ATARegs[ATA_REG_ERROR_OFFSET]); | |
1da177e4 LT |
594 | } |
595 | ||
596 | return retStatus; | |
597 | } | |
598 | ||
599 | ||
600 | /************************************************************************** | |
601 | * Invoke the transport and basic error-handling/recovery methods | |
602 | * | |
603 | * This is used by the protocol layers to actually send the message to | |
604 | * the device and receive the response. | |
605 | */ | |
606 | static void isd200_invoke_transport( struct us_data *us, | |
607 | struct scsi_cmnd *srb, | |
608 | union ata_cdb *ataCdb ) | |
609 | { | |
610 | int need_auto_sense = 0; | |
611 | int transferStatus; | |
612 | int result; | |
613 | ||
614 | /* send the command to the transport layer */ | |
615 | memcpy(srb->cmnd, ataCdb, sizeof(ataCdb->generic)); | |
616 | srb->cmd_len = sizeof(ataCdb->generic); | |
617 | transferStatus = usb_stor_Bulk_transport(srb, us); | |
618 | ||
f0183a33 FB |
619 | /* |
620 | * if the command gets aborted by the higher layers, we need to | |
1da177e4 LT |
621 | * short-circuit all other processing |
622 | */ | |
7e4d6c38 | 623 | if (test_bit(US_FLIDX_TIMED_OUT, &us->dflags)) { |
191648d0 | 624 | usb_stor_dbg(us, "-- command was aborted\n"); |
1da177e4 LT |
625 | goto Handle_Abort; |
626 | } | |
627 | ||
628 | switch (transferStatus) { | |
629 | ||
630 | case USB_STOR_TRANSPORT_GOOD: | |
631 | /* Indicate a good result */ | |
632 | srb->result = SAM_STAT_GOOD; | |
633 | break; | |
634 | ||
635 | case USB_STOR_TRANSPORT_NO_SENSE: | |
191648d0 | 636 | usb_stor_dbg(us, "-- transport indicates protocol failure\n"); |
1da177e4 LT |
637 | srb->result = SAM_STAT_CHECK_CONDITION; |
638 | return; | |
639 | ||
640 | case USB_STOR_TRANSPORT_FAILED: | |
191648d0 | 641 | usb_stor_dbg(us, "-- transport indicates command failure\n"); |
1da177e4 LT |
642 | need_auto_sense = 1; |
643 | break; | |
644 | ||
645 | case USB_STOR_TRANSPORT_ERROR: | |
191648d0 | 646 | usb_stor_dbg(us, "-- transport indicates transport error\n"); |
1da177e4 LT |
647 | srb->result = DID_ERROR << 16; |
648 | /* Need reset here */ | |
649 | return; | |
650 | ||
651 | default: | |
191648d0 | 652 | usb_stor_dbg(us, "-- transport indicates unknown error\n"); |
1da177e4 LT |
653 | srb->result = DID_ERROR << 16; |
654 | /* Need reset here */ | |
655 | return; | |
656 | } | |
657 | ||
48c23d3e | 658 | if ((scsi_get_resid(srb) > 0) && |
1da177e4 LT |
659 | !((srb->cmnd[0] == REQUEST_SENSE) || |
660 | (srb->cmnd[0] == INQUIRY) || | |
661 | (srb->cmnd[0] == MODE_SENSE) || | |
662 | (srb->cmnd[0] == LOG_SENSE) || | |
663 | (srb->cmnd[0] == MODE_SENSE_10))) { | |
191648d0 | 664 | usb_stor_dbg(us, "-- unexpectedly short transfer\n"); |
1da177e4 LT |
665 | need_auto_sense = 1; |
666 | } | |
667 | ||
668 | if (need_auto_sense) { | |
669 | result = isd200_read_regs(us); | |
7e4d6c38 | 670 | if (test_bit(US_FLIDX_TIMED_OUT, &us->dflags)) { |
191648d0 | 671 | usb_stor_dbg(us, "-- auto-sense aborted\n"); |
1da177e4 LT |
672 | goto Handle_Abort; |
673 | } | |
674 | if (result == ISD200_GOOD) { | |
675 | isd200_build_sense(us, srb); | |
676 | srb->result = SAM_STAT_CHECK_CONDITION; | |
677 | ||
678 | /* If things are really okay, then let's show that */ | |
679 | if ((srb->sense_buffer[2] & 0xf) == 0x0) | |
680 | srb->result = SAM_STAT_GOOD; | |
681 | } else { | |
682 | srb->result = DID_ERROR << 16; | |
683 | /* Need reset here */ | |
684 | } | |
685 | } | |
686 | ||
f0183a33 FB |
687 | /* |
688 | * Regardless of auto-sense, if we _know_ we have an error | |
1da177e4 LT |
689 | * condition, show that in the result code |
690 | */ | |
691 | if (transferStatus == USB_STOR_TRANSPORT_FAILED) | |
692 | srb->result = SAM_STAT_CHECK_CONDITION; | |
693 | return; | |
694 | ||
f0183a33 FB |
695 | /* |
696 | * abort processing: the bulk-only transport requires a reset | |
697 | * following an abort | |
698 | */ | |
1da177e4 LT |
699 | Handle_Abort: |
700 | srb->result = DID_ABORT << 16; | |
701 | ||
702 | /* permit the reset transfer to take place */ | |
7e4d6c38 | 703 | clear_bit(US_FLIDX_ABORTING, &us->dflags); |
1da177e4 LT |
704 | /* Need reset here */ |
705 | } | |
706 | ||
707 | #ifdef CONFIG_USB_STORAGE_DEBUG | |
191648d0 | 708 | static void isd200_log_config(struct us_data *us, struct isd200_info *info) |
1da177e4 | 709 | { |
191648d0 JP |
710 | usb_stor_dbg(us, " Event Notification: 0x%x\n", |
711 | info->ConfigData.EventNotification); | |
712 | usb_stor_dbg(us, " External Clock: 0x%x\n", | |
713 | info->ConfigData.ExternalClock); | |
714 | usb_stor_dbg(us, " ATA Init Timeout: 0x%x\n", | |
715 | info->ConfigData.ATAInitTimeout); | |
716 | usb_stor_dbg(us, " ATAPI Command Block Size: 0x%x\n", | |
717 | (info->ConfigData.ATAConfig & ATACFG_BLOCKSIZE) >> 6); | |
718 | usb_stor_dbg(us, " Master/Slave Selection: 0x%x\n", | |
719 | info->ConfigData.ATAConfig & ATACFG_MASTER); | |
720 | usb_stor_dbg(us, " ATAPI Reset: 0x%x\n", | |
721 | info->ConfigData.ATAConfig & ATACFG_ATAPI_RESET); | |
722 | usb_stor_dbg(us, " ATA Timing: 0x%x\n", | |
723 | info->ConfigData.ATAConfig & ATACFG_TIMING); | |
724 | usb_stor_dbg(us, " ATA Major Command: 0x%x\n", | |
725 | info->ConfigData.ATAMajorCommand); | |
726 | usb_stor_dbg(us, " ATA Minor Command: 0x%x\n", | |
727 | info->ConfigData.ATAMinorCommand); | |
728 | usb_stor_dbg(us, " Init Status: 0x%x\n", | |
729 | info->ConfigData.ATAExtraConfig & ATACFGE_INIT_STATUS); | |
730 | usb_stor_dbg(us, " Config Descriptor 2: 0x%x\n", | |
731 | info->ConfigData.ATAExtraConfig & ATACFGE_CONF_DESC2); | |
732 | usb_stor_dbg(us, " Skip Device Boot: 0x%x\n", | |
733 | info->ConfigData.ATAExtraConfig & ATACFGE_SKIP_BOOT); | |
333c65bc | 734 | usb_stor_dbg(us, " ATA 3 State Suspend: 0x%x\n", |
191648d0 JP |
735 | info->ConfigData.ATAExtraConfig & ATACFGE_STATE_SUSPEND); |
736 | usb_stor_dbg(us, " Descriptor Override: 0x%x\n", | |
737 | info->ConfigData.ATAExtraConfig & ATACFGE_DESC_OVERRIDE); | |
738 | usb_stor_dbg(us, " Last LUN Identifier: 0x%x\n", | |
739 | info->ConfigData.ATAExtraConfig & ATACFGE_LAST_LUN); | |
740 | usb_stor_dbg(us, " SRST Enable: 0x%x\n", | |
741 | info->ConfigData.ATAExtraConfig & CFG_CAPABILITY_SRST); | |
1da177e4 LT |
742 | } |
743 | #endif | |
744 | ||
745 | /************************************************************************** | |
746 | * isd200_write_config | |
747 | * | |
748 | * Write the ISD200 Configuration data | |
749 | * | |
750 | * RETURNS: | |
751 | * ISD status code | |
752 | */ | |
753 | static int isd200_write_config( struct us_data *us ) | |
754 | { | |
755 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
756 | int retStatus = ISD200_GOOD; | |
757 | int result; | |
758 | ||
759 | #ifdef CONFIG_USB_STORAGE_DEBUG | |
191648d0 JP |
760 | usb_stor_dbg(us, "Entering isd200_write_config\n"); |
761 | usb_stor_dbg(us, " Writing the following ISD200 Config Data:\n"); | |
762 | isd200_log_config(us, info); | |
1da177e4 LT |
763 | #endif |
764 | ||
765 | /* let's send the command via the control pipe */ | |
766 | result = usb_stor_ctrl_transfer( | |
767 | us, | |
768 | us->send_ctrl_pipe, | |
769 | 0x01, | |
770 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, | |
771 | 0x0000, | |
772 | 0x0002, | |
773 | (void *) &info->ConfigData, | |
774 | sizeof(info->ConfigData)); | |
775 | ||
776 | if (result >= 0) { | |
191648d0 | 777 | usb_stor_dbg(us, " ISD200 Config Data was written successfully\n"); |
1da177e4 | 778 | } else { |
191648d0 | 779 | usb_stor_dbg(us, " Request to write ISD200 Config Data failed!\n"); |
1da177e4 LT |
780 | retStatus = ISD200_ERROR; |
781 | } | |
782 | ||
191648d0 | 783 | usb_stor_dbg(us, "Leaving isd200_write_config %08X\n", retStatus); |
1da177e4 LT |
784 | return retStatus; |
785 | } | |
786 | ||
787 | ||
788 | /************************************************************************** | |
789 | * isd200_read_config | |
790 | * | |
791 | * Reads the ISD200 Configuration data | |
792 | * | |
793 | * RETURNS: | |
794 | * ISD status code | |
795 | */ | |
796 | static int isd200_read_config( struct us_data *us ) | |
797 | { | |
798 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
799 | int retStatus = ISD200_GOOD; | |
800 | int result; | |
801 | ||
191648d0 | 802 | usb_stor_dbg(us, "Entering isd200_read_config\n"); |
1da177e4 LT |
803 | |
804 | /* read the configuration information from ISD200. Use this to */ | |
805 | /* determine what the special ATA CDB bytes are. */ | |
806 | ||
807 | result = usb_stor_ctrl_transfer( | |
808 | us, | |
809 | us->recv_ctrl_pipe, | |
810 | 0x02, | |
811 | USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, | |
812 | 0x0000, | |
813 | 0x0002, | |
814 | (void *) &info->ConfigData, | |
815 | sizeof(info->ConfigData)); | |
816 | ||
817 | ||
818 | if (result >= 0) { | |
191648d0 | 819 | usb_stor_dbg(us, " Retrieved the following ISD200 Config Data:\n"); |
1da177e4 | 820 | #ifdef CONFIG_USB_STORAGE_DEBUG |
191648d0 | 821 | isd200_log_config(us, info); |
1da177e4 LT |
822 | #endif |
823 | } else { | |
191648d0 | 824 | usb_stor_dbg(us, " Request to get ISD200 Config Data failed!\n"); |
1da177e4 LT |
825 | retStatus = ISD200_ERROR; |
826 | } | |
827 | ||
191648d0 | 828 | usb_stor_dbg(us, "Leaving isd200_read_config %08X\n", retStatus); |
1da177e4 LT |
829 | return retStatus; |
830 | } | |
831 | ||
832 | ||
833 | /************************************************************************** | |
834 | * isd200_atapi_soft_reset | |
835 | * | |
836 | * Perform an Atapi Soft Reset on the device | |
837 | * | |
838 | * RETURNS: | |
839 | * NT status code | |
840 | */ | |
841 | static int isd200_atapi_soft_reset( struct us_data *us ) | |
842 | { | |
843 | int retStatus = ISD200_GOOD; | |
844 | int transferStatus; | |
845 | ||
191648d0 | 846 | usb_stor_dbg(us, "Entering isd200_atapi_soft_reset\n"); |
1da177e4 LT |
847 | |
848 | transferStatus = isd200_action( us, ACTION_SOFT_RESET, NULL, 0 ); | |
849 | if (transferStatus != ISD200_TRANSPORT_GOOD) { | |
191648d0 | 850 | usb_stor_dbg(us, " Error issuing Atapi Soft Reset\n"); |
1da177e4 LT |
851 | retStatus = ISD200_ERROR; |
852 | } | |
853 | ||
191648d0 | 854 | usb_stor_dbg(us, "Leaving isd200_atapi_soft_reset %08X\n", retStatus); |
1da177e4 LT |
855 | return retStatus; |
856 | } | |
857 | ||
858 | ||
859 | /************************************************************************** | |
860 | * isd200_srst | |
861 | * | |
862 | * Perform an SRST on the device | |
863 | * | |
864 | * RETURNS: | |
865 | * ISD status code | |
866 | */ | |
867 | static int isd200_srst( struct us_data *us ) | |
868 | { | |
869 | int retStatus = ISD200_GOOD; | |
870 | int transferStatus; | |
871 | ||
191648d0 | 872 | usb_stor_dbg(us, "Entering isd200_SRST\n"); |
1da177e4 LT |
873 | |
874 | transferStatus = isd200_action( us, ACTION_RESET, NULL, 0 ); | |
875 | ||
876 | /* check to see if this request failed */ | |
877 | if (transferStatus != ISD200_TRANSPORT_GOOD) { | |
191648d0 | 878 | usb_stor_dbg(us, " Error issuing SRST\n"); |
1da177e4 LT |
879 | retStatus = ISD200_ERROR; |
880 | } else { | |
881 | /* delay 10ms to give the drive a chance to see it */ | |
882 | msleep(10); | |
883 | ||
884 | transferStatus = isd200_action( us, ACTION_REENABLE, NULL, 0 ); | |
885 | if (transferStatus != ISD200_TRANSPORT_GOOD) { | |
191648d0 | 886 | usb_stor_dbg(us, " Error taking drive out of reset\n"); |
1da177e4 LT |
887 | retStatus = ISD200_ERROR; |
888 | } else { | |
889 | /* delay 50ms to give the drive a chance to recover after SRST */ | |
890 | msleep(50); | |
891 | } | |
892 | } | |
893 | ||
191648d0 | 894 | usb_stor_dbg(us, "Leaving isd200_srst %08X\n", retStatus); |
1da177e4 LT |
895 | return retStatus; |
896 | } | |
897 | ||
898 | ||
899 | /************************************************************************** | |
900 | * isd200_try_enum | |
901 | * | |
902 | * Helper function for isd200_manual_enum(). Does ENUM and READ_STATUS | |
903 | * and tries to analyze the status registers | |
904 | * | |
905 | * RETURNS: | |
906 | * ISD status code | |
907 | */ | |
908 | static int isd200_try_enum(struct us_data *us, unsigned char master_slave, | |
909 | int detect ) | |
910 | { | |
911 | int status = ISD200_GOOD; | |
912 | unsigned long endTime; | |
913 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
914 | unsigned char *regs = info->RegsBuf; | |
915 | int recheckAsMaster = 0; | |
916 | ||
917 | if ( detect ) | |
918 | endTime = jiffies + ISD200_ENUM_DETECT_TIMEOUT * HZ; | |
919 | else | |
920 | endTime = jiffies + ISD200_ENUM_BSY_TIMEOUT * HZ; | |
921 | ||
922 | /* loop until we detect !BSY or timeout */ | |
923 | while(1) { | |
1da177e4 LT |
924 | |
925 | status = isd200_action( us, ACTION_ENUM, NULL, master_slave ); | |
926 | if ( status != ISD200_GOOD ) | |
927 | break; | |
928 | ||
929 | status = isd200_action( us, ACTION_READ_STATUS, | |
930 | regs, 8 ); | |
931 | if ( status != ISD200_GOOD ) | |
932 | break; | |
933 | ||
934 | if (!detect) { | |
fcd3ec69 | 935 | if (regs[ATA_REG_STATUS_OFFSET] & ATA_BUSY) { |
191648d0 JP |
936 | usb_stor_dbg(us, " %s status is still BSY, try again...\n", |
937 | master_slave == ATA_ADDRESS_DEVHEAD_STD ? | |
938 | "Master" : "Slave"); | |
1da177e4 | 939 | } else { |
191648d0 JP |
940 | usb_stor_dbg(us, " %s status !BSY, continue with next operation\n", |
941 | master_slave == ATA_ADDRESS_DEVHEAD_STD ? | |
942 | "Master" : "Slave"); | |
1da177e4 LT |
943 | break; |
944 | } | |
945 | } | |
fcd3ec69 BZ |
946 | /* check for ATA_BUSY and */ |
947 | /* ATA_DF (workaround ATA Zip drive) and */ | |
948 | /* ATA_ERR (workaround for Archos CD-ROM) */ | |
c74e8095 | 949 | else if (regs[ATA_REG_STATUS_OFFSET] & |
fcd3ec69 | 950 | (ATA_BUSY | ATA_DF | ATA_ERR)) { |
191648d0 | 951 | usb_stor_dbg(us, " Status indicates it is not ready, try again...\n"); |
1da177e4 LT |
952 | } |
953 | /* check for DRDY, ATA devices set DRDY after SRST */ | |
fcd3ec69 | 954 | else if (regs[ATA_REG_STATUS_OFFSET] & ATA_DRDY) { |
191648d0 | 955 | usb_stor_dbg(us, " Identified ATA device\n"); |
1da177e4 LT |
956 | info->DeviceFlags |= DF_ATA_DEVICE; |
957 | info->DeviceHead = master_slave; | |
958 | break; | |
959 | } | |
f0183a33 FB |
960 | /* |
961 | * check Cylinder High/Low to | |
962 | * determine if it is an ATAPI device | |
963 | */ | |
c74e8095 BZ |
964 | else if (regs[ATA_REG_HCYL_OFFSET] == 0xEB && |
965 | regs[ATA_REG_LCYL_OFFSET] == 0x14) { | |
f0183a33 FB |
966 | /* |
967 | * It seems that the RICOH | |
968 | * MP6200A CD/RW drive will | |
969 | * report itself okay as a | |
970 | * slave when it is really a | |
971 | * master. So this check again | |
972 | * as a master device just to | |
973 | * make sure it doesn't report | |
974 | * itself okay as a master also | |
975 | */ | |
1da177e4 LT |
976 | if ((master_slave & ATA_ADDRESS_DEVHEAD_SLAVE) && |
977 | !recheckAsMaster) { | |
191648d0 | 978 | usb_stor_dbg(us, " Identified ATAPI device as slave. Rechecking again as master\n"); |
1da177e4 LT |
979 | recheckAsMaster = 1; |
980 | master_slave = ATA_ADDRESS_DEVHEAD_STD; | |
981 | } else { | |
191648d0 | 982 | usb_stor_dbg(us, " Identified ATAPI device\n"); |
1da177e4 LT |
983 | info->DeviceHead = master_slave; |
984 | ||
985 | status = isd200_atapi_soft_reset(us); | |
986 | break; | |
987 | } | |
988 | } else { | |
191648d0 | 989 | usb_stor_dbg(us, " Not ATA, not ATAPI - Weird\n"); |
1da177e4 LT |
990 | break; |
991 | } | |
992 | ||
993 | /* check for timeout on this request */ | |
994 | if (time_after_eq(jiffies, endTime)) { | |
995 | if (!detect) | |
191648d0 | 996 | usb_stor_dbg(us, " BSY check timeout, just continue with next operation...\n"); |
1da177e4 | 997 | else |
191648d0 | 998 | usb_stor_dbg(us, " Device detect timeout!\n"); |
1da177e4 LT |
999 | break; |
1000 | } | |
1001 | } | |
1002 | ||
1003 | return status; | |
1004 | } | |
1005 | ||
1006 | /************************************************************************** | |
1007 | * isd200_manual_enum | |
1008 | * | |
1009 | * Determines if the drive attached is an ATA or ATAPI and if it is a | |
1010 | * master or slave. | |
1011 | * | |
1012 | * RETURNS: | |
1013 | * ISD status code | |
1014 | */ | |
1015 | static int isd200_manual_enum(struct us_data *us) | |
1016 | { | |
1017 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
1018 | int retStatus = ISD200_GOOD; | |
1019 | ||
191648d0 | 1020 | usb_stor_dbg(us, "Entering isd200_manual_enum\n"); |
1da177e4 LT |
1021 | |
1022 | retStatus = isd200_read_config(us); | |
1023 | if (retStatus == ISD200_GOOD) { | |
1024 | int isslave; | |
1025 | /* master or slave? */ | |
1026 | retStatus = isd200_try_enum( us, ATA_ADDRESS_DEVHEAD_STD, 0); | |
1027 | if (retStatus == ISD200_GOOD) | |
1028 | retStatus = isd200_try_enum( us, ATA_ADDRESS_DEVHEAD_SLAVE, 0); | |
1029 | ||
1030 | if (retStatus == ISD200_GOOD) { | |
1031 | retStatus = isd200_srst(us); | |
1032 | if (retStatus == ISD200_GOOD) | |
1033 | /* ata or atapi? */ | |
1034 | retStatus = isd200_try_enum( us, ATA_ADDRESS_DEVHEAD_STD, 1); | |
1035 | } | |
1036 | ||
1037 | isslave = (info->DeviceHead & ATA_ADDRESS_DEVHEAD_SLAVE) ? 1 : 0; | |
1038 | if (!(info->ConfigData.ATAConfig & ATACFG_MASTER)) { | |
191648d0 JP |
1039 | usb_stor_dbg(us, " Setting Master/Slave selection to %d\n", |
1040 | isslave); | |
1da177e4 LT |
1041 | info->ConfigData.ATAConfig &= 0x3f; |
1042 | info->ConfigData.ATAConfig |= (isslave<<6); | |
1043 | retStatus = isd200_write_config(us); | |
1044 | } | |
1045 | } | |
1046 | ||
191648d0 | 1047 | usb_stor_dbg(us, "Leaving isd200_manual_enum %08X\n", retStatus); |
1da177e4 LT |
1048 | return(retStatus); |
1049 | } | |
1050 | ||
d8881cda | 1051 | static void isd200_fix_driveid(u16 *id) |
3794ade5 AC |
1052 | { |
1053 | #ifndef __LITTLE_ENDIAN | |
1054 | # ifdef __BIG_ENDIAN | |
1055 | int i; | |
d8881cda BZ |
1056 | |
1057 | for (i = 0; i < ATA_ID_WORDS; i++) | |
1058 | id[i] = __le16_to_cpu(id[i]); | |
3794ade5 AC |
1059 | # else |
1060 | # error "Please fix <asm/byteorder.h>" | |
1061 | # endif | |
1062 | #endif | |
1063 | } | |
1064 | ||
191648d0 | 1065 | static void isd200_dump_driveid(struct us_data *us, u16 *id) |
d8881cda | 1066 | { |
191648d0 JP |
1067 | usb_stor_dbg(us, " Identify Data Structure:\n"); |
1068 | usb_stor_dbg(us, " config = 0x%x\n", id[ATA_ID_CONFIG]); | |
1069 | usb_stor_dbg(us, " cyls = 0x%x\n", id[ATA_ID_CYLS]); | |
1070 | usb_stor_dbg(us, " heads = 0x%x\n", id[ATA_ID_HEADS]); | |
1071 | usb_stor_dbg(us, " track_bytes = 0x%x\n", id[4]); | |
1072 | usb_stor_dbg(us, " sector_bytes = 0x%x\n", id[5]); | |
1073 | usb_stor_dbg(us, " sectors = 0x%x\n", id[ATA_ID_SECTORS]); | |
1074 | usb_stor_dbg(us, " serial_no[0] = 0x%x\n", *(char *)&id[ATA_ID_SERNO]); | |
1075 | usb_stor_dbg(us, " buf_type = 0x%x\n", id[20]); | |
1076 | usb_stor_dbg(us, " buf_size = 0x%x\n", id[ATA_ID_BUF_SIZE]); | |
1077 | usb_stor_dbg(us, " ecc_bytes = 0x%x\n", id[22]); | |
1078 | usb_stor_dbg(us, " fw_rev[0] = 0x%x\n", *(char *)&id[ATA_ID_FW_REV]); | |
1079 | usb_stor_dbg(us, " model[0] = 0x%x\n", *(char *)&id[ATA_ID_PROD]); | |
1080 | usb_stor_dbg(us, " max_multsect = 0x%x\n", id[ATA_ID_MAX_MULTSECT] & 0xff); | |
1081 | usb_stor_dbg(us, " dword_io = 0x%x\n", id[ATA_ID_DWORD_IO]); | |
1082 | usb_stor_dbg(us, " capability = 0x%x\n", id[ATA_ID_CAPABILITY] >> 8); | |
1083 | usb_stor_dbg(us, " tPIO = 0x%x\n", id[ATA_ID_OLD_PIO_MODES] >> 8); | |
1084 | usb_stor_dbg(us, " tDMA = 0x%x\n", id[ATA_ID_OLD_DMA_MODES] >> 8); | |
1085 | usb_stor_dbg(us, " field_valid = 0x%x\n", id[ATA_ID_FIELD_VALID]); | |
1086 | usb_stor_dbg(us, " cur_cyls = 0x%x\n", id[ATA_ID_CUR_CYLS]); | |
1087 | usb_stor_dbg(us, " cur_heads = 0x%x\n", id[ATA_ID_CUR_HEADS]); | |
1088 | usb_stor_dbg(us, " cur_sectors = 0x%x\n", id[ATA_ID_CUR_SECTORS]); | |
1089 | usb_stor_dbg(us, " cur_capacity = 0x%x\n", ata_id_u32(id, 57)); | |
1090 | usb_stor_dbg(us, " multsect = 0x%x\n", id[ATA_ID_MULTSECT] & 0xff); | |
1091 | usb_stor_dbg(us, " lba_capacity = 0x%x\n", ata_id_u32(id, ATA_ID_LBA_CAPACITY)); | |
1092 | usb_stor_dbg(us, " command_set_1 = 0x%x\n", id[ATA_ID_COMMAND_SET_1]); | |
1093 | usb_stor_dbg(us, " command_set_2 = 0x%x\n", id[ATA_ID_COMMAND_SET_2]); | |
d8881cda | 1094 | } |
1da177e4 LT |
1095 | |
1096 | /************************************************************************** | |
1097 | * isd200_get_inquiry_data | |
1098 | * | |
1099 | * Get inquiry data | |
1100 | * | |
1101 | * RETURNS: | |
1102 | * ISD status code | |
1103 | */ | |
1104 | static int isd200_get_inquiry_data( struct us_data *us ) | |
1105 | { | |
1106 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
1107 | int retStatus = ISD200_GOOD; | |
d8881cda | 1108 | u16 *id = info->id; |
1da177e4 | 1109 | |
191648d0 | 1110 | usb_stor_dbg(us, "Entering isd200_get_inquiry_data\n"); |
1da177e4 LT |
1111 | |
1112 | /* set default to Master */ | |
1113 | info->DeviceHead = ATA_ADDRESS_DEVHEAD_STD; | |
1114 | ||
1115 | /* attempt to manually enumerate this device */ | |
1116 | retStatus = isd200_manual_enum(us); | |
1117 | if (retStatus == ISD200_GOOD) { | |
1118 | int transferStatus; | |
1119 | ||
1120 | /* check for an ATA device */ | |
1121 | if (info->DeviceFlags & DF_ATA_DEVICE) { | |
1122 | /* this must be an ATA device */ | |
1123 | /* perform an ATA Command Identify */ | |
1124 | transferStatus = isd200_action( us, ACTION_IDENTIFY, | |
d8881cda | 1125 | id, ATA_ID_WORDS * 2); |
1da177e4 LT |
1126 | if (transferStatus != ISD200_TRANSPORT_GOOD) { |
1127 | /* Error issuing ATA Command Identify */ | |
191648d0 | 1128 | usb_stor_dbg(us, " Error issuing ATA Command Identify\n"); |
1da177e4 LT |
1129 | retStatus = ISD200_ERROR; |
1130 | } else { | |
1131 | /* ATA Command Identify successful */ | |
1132 | int i; | |
1133 | __be16 *src; | |
1134 | __u16 *dest; | |
1da177e4 | 1135 | |
d8881cda | 1136 | isd200_fix_driveid(id); |
191648d0 | 1137 | isd200_dump_driveid(us, id); |
1da177e4 LT |
1138 | |
1139 | memset(&info->InquiryData, 0, sizeof(info->InquiryData)); | |
1140 | ||
1141 | /* Standard IDE interface only supports disks */ | |
1142 | info->InquiryData.DeviceType = DIRECT_ACCESS_DEVICE; | |
1143 | ||
1144 | /* The length must be at least 36 (5 + 31) */ | |
1145 | info->InquiryData.AdditionalLength = 0x1F; | |
1146 | ||
d8881cda | 1147 | if (id[ATA_ID_COMMAND_SET_1] & COMMANDSET_MEDIA_STATUS) { |
1da177e4 LT |
1148 | /* set the removable bit */ |
1149 | info->InquiryData.DeviceTypeModifier = DEVICE_REMOVABLE; | |
1150 | info->DeviceFlags |= DF_REMOVABLE_MEDIA; | |
1151 | } | |
1152 | ||
1153 | /* Fill in vendor identification fields */ | |
d8881cda | 1154 | src = (__be16 *)&id[ATA_ID_PROD]; |
1da177e4 | 1155 | dest = (__u16*)info->InquiryData.VendorId; |
1906f64f | 1156 | for (i = 0; i < 4; i++) |
1da177e4 LT |
1157 | dest[i] = be16_to_cpu(src[i]); |
1158 | ||
d8881cda | 1159 | src = (__be16 *)&id[ATA_ID_PROD + 8/2]; |
1da177e4 LT |
1160 | dest = (__u16*)info->InquiryData.ProductId; |
1161 | for (i=0;i<8;i++) | |
1162 | dest[i] = be16_to_cpu(src[i]); | |
1163 | ||
d8881cda | 1164 | src = (__be16 *)&id[ATA_ID_FW_REV]; |
1da177e4 LT |
1165 | dest = (__u16*)info->InquiryData.ProductRevisionLevel; |
1166 | for (i=0;i<2;i++) | |
1167 | dest[i] = be16_to_cpu(src[i]); | |
1168 | ||
1169 | /* determine if it supports Media Status Notification */ | |
d8881cda | 1170 | if (id[ATA_ID_COMMAND_SET_2] & COMMANDSET_MEDIA_STATUS) { |
191648d0 | 1171 | usb_stor_dbg(us, " Device supports Media Status Notification\n"); |
1da177e4 | 1172 | |
f0183a33 FB |
1173 | /* |
1174 | * Indicate that it is enabled, even | |
1175 | * though it is not. | |
1176 | * This allows the lock/unlock of the | |
1177 | * media to work correctly. | |
1da177e4 LT |
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 | ||
191648d0 JP |
1193 | usb_stor_dbg(us, "Protocol changed to: %s\n", |
1194 | us->protocol_name); | |
1da177e4 | 1195 | |
f0183a33 | 1196 | /* Free driver structure */ |
1da177e4 | 1197 | us->extra_destructor(info); |
ba2ef3b3 | 1198 | kfree(info); |
1da177e4 LT |
1199 | us->extra = NULL; |
1200 | us->extra_destructor = NULL; | |
1201 | } | |
1202 | } | |
1203 | ||
191648d0 | 1204 | usb_stor_dbg(us, "Leaving isd200_get_inquiry_data %08X\n", retStatus); |
1da177e4 LT |
1205 | |
1206 | return(retStatus); | |
1207 | } | |
1208 | ||
1da177e4 LT |
1209 | /************************************************************************** |
1210 | * isd200_scsi_to_ata | |
1211 | * | |
1212 | * Translate SCSI commands to ATA commands. | |
1213 | * | |
1214 | * RETURNS: | |
1215 | * 1 if the command needs to be sent to the transport layer | |
1216 | * 0 otherwise | |
1217 | */ | |
1218 | static int isd200_scsi_to_ata(struct scsi_cmnd *srb, struct us_data *us, | |
1219 | union ata_cdb * ataCdb) | |
1220 | { | |
1221 | struct isd200_info *info = (struct isd200_info *)us->extra; | |
d8881cda | 1222 | u16 *id = info->id; |
1da177e4 LT |
1223 | int sendToTransport = 1; |
1224 | unsigned char sectnum, head; | |
1225 | unsigned short cylinder; | |
1226 | unsigned long lba; | |
1227 | unsigned long blockCount; | |
1228 | unsigned char senseData[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; | |
1229 | ||
1230 | memset(ataCdb, 0, sizeof(union ata_cdb)); | |
1231 | ||
1232 | /* SCSI Command */ | |
1233 | switch (srb->cmnd[0]) { | |
1234 | case INQUIRY: | |
191648d0 | 1235 | usb_stor_dbg(us, " ATA OUT - INQUIRY\n"); |
1da177e4 LT |
1236 | |
1237 | /* copy InquiryData */ | |
1238 | usb_stor_set_xfer_buf((unsigned char *) &info->InquiryData, | |
1239 | sizeof(info->InquiryData), srb); | |
1240 | srb->result = SAM_STAT_GOOD; | |
1241 | sendToTransport = 0; | |
1242 | break; | |
1243 | ||
1244 | case MODE_SENSE: | |
191648d0 | 1245 | usb_stor_dbg(us, " ATA OUT - SCSIOP_MODE_SENSE\n"); |
1da177e4 LT |
1246 | |
1247 | /* Initialize the return buffer */ | |
1248 | usb_stor_set_xfer_buf(senseData, sizeof(senseData), srb); | |
1249 | ||
1250 | if (info->DeviceFlags & DF_MEDIA_STATUS_ENABLED) | |
1251 | { | |
1252 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1253 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1254 | ataCdb->generic.TransferBlockSize = 1; | |
1255 | ataCdb->generic.RegisterSelect = REG_COMMAND; | |
1256 | ataCdb->write.CommandByte = ATA_COMMAND_GET_MEDIA_STATUS; | |
48c23d3e | 1257 | isd200_srb_set_bufflen(srb, 0); |
1da177e4 | 1258 | } else { |
191648d0 | 1259 | usb_stor_dbg(us, " Media Status not supported, just report okay\n"); |
1da177e4 LT |
1260 | srb->result = SAM_STAT_GOOD; |
1261 | sendToTransport = 0; | |
1262 | } | |
1263 | break; | |
1264 | ||
1265 | case TEST_UNIT_READY: | |
191648d0 | 1266 | usb_stor_dbg(us, " ATA OUT - SCSIOP_TEST_UNIT_READY\n"); |
1da177e4 LT |
1267 | |
1268 | if (info->DeviceFlags & DF_MEDIA_STATUS_ENABLED) | |
1269 | { | |
1270 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1271 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1272 | ataCdb->generic.TransferBlockSize = 1; | |
1273 | ataCdb->generic.RegisterSelect = REG_COMMAND; | |
1274 | ataCdb->write.CommandByte = ATA_COMMAND_GET_MEDIA_STATUS; | |
48c23d3e | 1275 | isd200_srb_set_bufflen(srb, 0); |
1da177e4 | 1276 | } else { |
191648d0 | 1277 | usb_stor_dbg(us, " Media Status not supported, just report okay\n"); |
1da177e4 LT |
1278 | srb->result = SAM_STAT_GOOD; |
1279 | sendToTransport = 0; | |
1280 | } | |
1281 | break; | |
1282 | ||
1283 | case READ_CAPACITY: | |
1284 | { | |
1285 | unsigned long capacity; | |
1286 | struct read_capacity_data readCapacityData; | |
1287 | ||
191648d0 | 1288 | usb_stor_dbg(us, " ATA OUT - SCSIOP_READ_CAPACITY\n"); |
1da177e4 | 1289 | |
d8881cda BZ |
1290 | if (ata_id_has_lba(id)) |
1291 | capacity = ata_id_u32(id, ATA_ID_LBA_CAPACITY) - 1; | |
1292 | else | |
1293 | capacity = (id[ATA_ID_HEADS] * id[ATA_ID_CYLS] * | |
1294 | id[ATA_ID_SECTORS]) - 1; | |
1295 | ||
1da177e4 LT |
1296 | readCapacityData.LogicalBlockAddress = cpu_to_be32(capacity); |
1297 | readCapacityData.BytesPerBlock = cpu_to_be32(0x200); | |
1298 | ||
1299 | usb_stor_set_xfer_buf((unsigned char *) &readCapacityData, | |
1300 | sizeof(readCapacityData), srb); | |
1301 | srb->result = SAM_STAT_GOOD; | |
1302 | sendToTransport = 0; | |
1303 | } | |
1304 | break; | |
1305 | ||
1306 | case READ_10: | |
191648d0 | 1307 | usb_stor_dbg(us, " ATA OUT - SCSIOP_READ\n"); |
1da177e4 LT |
1308 | |
1309 | lba = be32_to_cpu(*(__be32 *)&srb->cmnd[2]); | |
1310 | blockCount = (unsigned long)srb->cmnd[7]<<8 | (unsigned long)srb->cmnd[8]; | |
1311 | ||
d8881cda | 1312 | if (ata_id_has_lba(id)) { |
1da177e4 LT |
1313 | sectnum = (unsigned char)(lba); |
1314 | cylinder = (unsigned short)(lba>>8); | |
1315 | head = ATA_ADDRESS_DEVHEAD_LBA_MODE | (unsigned char)(lba>>24 & 0x0F); | |
1316 | } else { | |
d8881cda BZ |
1317 | sectnum = (u8)((lba % id[ATA_ID_SECTORS]) + 1); |
1318 | cylinder = (u16)(lba / (id[ATA_ID_SECTORS] * | |
1319 | id[ATA_ID_HEADS])); | |
1320 | head = (u8)((lba / id[ATA_ID_SECTORS]) % | |
1321 | id[ATA_ID_HEADS]); | |
1da177e4 LT |
1322 | } |
1323 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1324 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1325 | ataCdb->generic.TransferBlockSize = 1; | |
1326 | ataCdb->generic.RegisterSelect = | |
1327 | REG_SECTOR_COUNT | REG_SECTOR_NUMBER | | |
1328 | REG_CYLINDER_LOW | REG_CYLINDER_HIGH | | |
1329 | REG_DEVICE_HEAD | REG_COMMAND; | |
1330 | ataCdb->write.SectorCountByte = (unsigned char)blockCount; | |
1331 | ataCdb->write.SectorNumberByte = sectnum; | |
1332 | ataCdb->write.CylinderHighByte = (unsigned char)(cylinder>>8); | |
1333 | ataCdb->write.CylinderLowByte = (unsigned char)cylinder; | |
1334 | ataCdb->write.DeviceHeadByte = (head | ATA_ADDRESS_DEVHEAD_STD); | |
f08f31f7 | 1335 | ataCdb->write.CommandByte = ATA_CMD_PIO_READ; |
1da177e4 LT |
1336 | break; |
1337 | ||
1338 | case WRITE_10: | |
191648d0 | 1339 | usb_stor_dbg(us, " ATA OUT - SCSIOP_WRITE\n"); |
1da177e4 LT |
1340 | |
1341 | lba = be32_to_cpu(*(__be32 *)&srb->cmnd[2]); | |
1342 | blockCount = (unsigned long)srb->cmnd[7]<<8 | (unsigned long)srb->cmnd[8]; | |
1343 | ||
d8881cda | 1344 | if (ata_id_has_lba(id)) { |
1da177e4 LT |
1345 | sectnum = (unsigned char)(lba); |
1346 | cylinder = (unsigned short)(lba>>8); | |
1347 | head = ATA_ADDRESS_DEVHEAD_LBA_MODE | (unsigned char)(lba>>24 & 0x0F); | |
1348 | } else { | |
d8881cda BZ |
1349 | sectnum = (u8)((lba % id[ATA_ID_SECTORS]) + 1); |
1350 | cylinder = (u16)(lba / (id[ATA_ID_SECTORS] * | |
1351 | id[ATA_ID_HEADS])); | |
1352 | head = (u8)((lba / id[ATA_ID_SECTORS]) % | |
1353 | id[ATA_ID_HEADS]); | |
1da177e4 LT |
1354 | } |
1355 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1356 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1357 | ataCdb->generic.TransferBlockSize = 1; | |
1358 | ataCdb->generic.RegisterSelect = | |
1359 | REG_SECTOR_COUNT | REG_SECTOR_NUMBER | | |
1360 | REG_CYLINDER_LOW | REG_CYLINDER_HIGH | | |
1361 | REG_DEVICE_HEAD | REG_COMMAND; | |
1362 | ataCdb->write.SectorCountByte = (unsigned char)blockCount; | |
1363 | ataCdb->write.SectorNumberByte = sectnum; | |
1364 | ataCdb->write.CylinderHighByte = (unsigned char)(cylinder>>8); | |
1365 | ataCdb->write.CylinderLowByte = (unsigned char)cylinder; | |
1366 | ataCdb->write.DeviceHeadByte = (head | ATA_ADDRESS_DEVHEAD_STD); | |
f08f31f7 | 1367 | ataCdb->write.CommandByte = ATA_CMD_PIO_WRITE; |
1da177e4 LT |
1368 | break; |
1369 | ||
1370 | case ALLOW_MEDIUM_REMOVAL: | |
191648d0 | 1371 | usb_stor_dbg(us, " ATA OUT - SCSIOP_MEDIUM_REMOVAL\n"); |
1da177e4 LT |
1372 | |
1373 | if (info->DeviceFlags & DF_REMOVABLE_MEDIA) { | |
191648d0 JP |
1374 | usb_stor_dbg(us, " srb->cmnd[4] = 0x%X\n", |
1375 | srb->cmnd[4]); | |
1da177e4 LT |
1376 | |
1377 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; | |
1378 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1379 | ataCdb->generic.TransferBlockSize = 1; | |
1380 | ataCdb->generic.RegisterSelect = REG_COMMAND; | |
1381 | ataCdb->write.CommandByte = (srb->cmnd[4] & 0x1) ? | |
f08f31f7 | 1382 | ATA_CMD_MEDIA_LOCK : ATA_CMD_MEDIA_UNLOCK; |
48c23d3e | 1383 | isd200_srb_set_bufflen(srb, 0); |
1da177e4 | 1384 | } else { |
191648d0 | 1385 | usb_stor_dbg(us, " Not removeable media, just report okay\n"); |
1da177e4 LT |
1386 | srb->result = SAM_STAT_GOOD; |
1387 | sendToTransport = 0; | |
1388 | } | |
1389 | break; | |
1390 | ||
1391 | case START_STOP: | |
191648d0 JP |
1392 | usb_stor_dbg(us, " ATA OUT - SCSIOP_START_STOP_UNIT\n"); |
1393 | usb_stor_dbg(us, " srb->cmnd[4] = 0x%X\n", srb->cmnd[4]); | |
1da177e4 LT |
1394 | |
1395 | if ((srb->cmnd[4] & 0x3) == 0x2) { | |
191648d0 | 1396 | usb_stor_dbg(us, " Media Eject\n"); |
1da177e4 LT |
1397 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; |
1398 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1399 | ataCdb->generic.TransferBlockSize = 0; | |
1400 | ataCdb->generic.RegisterSelect = REG_COMMAND; | |
1401 | ataCdb->write.CommandByte = ATA_COMMAND_MEDIA_EJECT; | |
1402 | } else if ((srb->cmnd[4] & 0x3) == 0x1) { | |
191648d0 | 1403 | usb_stor_dbg(us, " Get Media Status\n"); |
1da177e4 LT |
1404 | ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; |
1405 | ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; | |
1406 | ataCdb->generic.TransferBlockSize = 1; | |
1407 | ataCdb->generic.RegisterSelect = REG_COMMAND; | |
1408 | ataCdb->write.CommandByte = ATA_COMMAND_GET_MEDIA_STATUS; | |
48c23d3e | 1409 | isd200_srb_set_bufflen(srb, 0); |
1da177e4 | 1410 | } else { |
191648d0 | 1411 | usb_stor_dbg(us, " Nothing to do, just report okay\n"); |
1da177e4 LT |
1412 | srb->result = SAM_STAT_GOOD; |
1413 | sendToTransport = 0; | |
1414 | } | |
1415 | break; | |
1416 | ||
1417 | default: | |
191648d0 JP |
1418 | usb_stor_dbg(us, "Unsupported SCSI command - 0x%X\n", |
1419 | srb->cmnd[0]); | |
1da177e4 LT |
1420 | srb->result = DID_ERROR << 16; |
1421 | sendToTransport = 0; | |
1422 | break; | |
1423 | } | |
1424 | ||
1425 | return(sendToTransport); | |
1426 | } | |
1427 | ||
1428 | ||
1429 | /************************************************************************** | |
1430 | * isd200_free_info | |
1431 | * | |
1432 | * Frees the driver structure. | |
1433 | */ | |
1434 | static void isd200_free_info_ptrs(void *info_) | |
1435 | { | |
1436 | struct isd200_info *info = (struct isd200_info *) info_; | |
1437 | ||
1438 | if (info) { | |
1439 | kfree(info->id); | |
1440 | kfree(info->RegsBuf); | |
e92e63aa | 1441 | kfree(info->srb.sense_buffer); |
1da177e4 LT |
1442 | } |
1443 | } | |
1444 | ||
1445 | /************************************************************************** | |
1446 | * isd200_init_info | |
1447 | * | |
1448 | * Allocates (if necessary) and initializes the driver structure. | |
1449 | * | |
1450 | * RETURNS: | |
1451 | * ISD status code | |
1452 | */ | |
1453 | static int isd200_init_info(struct us_data *us) | |
1454 | { | |
1da177e4 LT |
1455 | struct isd200_info *info; |
1456 | ||
a5cc8049 | 1457 | info = kzalloc(sizeof(struct isd200_info), GFP_KERNEL); |
1da177e4 | 1458 | if (!info) |
8091e0ca | 1459 | return ISD200_ERROR; |
1da177e4 | 1460 | |
8091e0ca KB |
1461 | info->id = kzalloc(ATA_ID_WORDS * 2, GFP_KERNEL); |
1462 | info->RegsBuf = kmalloc(sizeof(info->ATARegs), GFP_KERNEL); | |
1463 | info->srb.sense_buffer = kmalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL); | |
1464 | ||
1465 | if (!info->id || !info->RegsBuf || !info->srb.sense_buffer) { | |
1466 | isd200_free_info_ptrs(info); | |
1467 | kfree(info); | |
1468 | return ISD200_ERROR; | |
191648d0 | 1469 | } |
1da177e4 | 1470 | |
8091e0ca KB |
1471 | us->extra = info; |
1472 | us->extra_destructor = isd200_free_info_ptrs; | |
1473 | ||
1474 | return ISD200_GOOD; | |
1da177e4 LT |
1475 | } |
1476 | ||
1477 | /************************************************************************** | |
1478 | * Initialization for the ISD200 | |
1479 | */ | |
1480 | ||
32d5493e | 1481 | static int isd200_Initialization(struct us_data *us) |
1da177e4 | 1482 | { |
191648d0 | 1483 | usb_stor_dbg(us, "ISD200 Initialization...\n"); |
1da177e4 LT |
1484 | |
1485 | /* Initialize ISD200 info struct */ | |
1486 | ||
1487 | if (isd200_init_info(us) == ISD200_ERROR) { | |
191648d0 | 1488 | usb_stor_dbg(us, "ERROR Initializing ISD200 Info struct\n"); |
1da177e4 LT |
1489 | } else { |
1490 | /* Get device specific data */ | |
1491 | ||
1492 | if (isd200_get_inquiry_data(us) != ISD200_GOOD) | |
191648d0 | 1493 | usb_stor_dbg(us, "ISD200 Initialization Failure\n"); |
1da177e4 | 1494 | else |
191648d0 | 1495 | usb_stor_dbg(us, "ISD200 Initialization complete\n"); |
1da177e4 LT |
1496 | } |
1497 | ||
1498 | return 0; | |
1499 | } | |
1500 | ||
1501 | ||
1502 | /************************************************************************** | |
1503 | * Protocol and Transport for the ISD200 ASIC | |
1504 | * | |
1505 | * This protocol and transport are for ATA devices connected to an ISD200 | |
25985edc | 1506 | * ASIC. An ATAPI device that is connected as a slave device will be |
1da177e4 LT |
1507 | * detected in the driver initialization function and the protocol will |
1508 | * be changed to an ATAPI protocol (Transparent SCSI). | |
1509 | * | |
1510 | */ | |
1511 | ||
32d5493e | 1512 | static void isd200_ata_command(struct scsi_cmnd *srb, struct us_data *us) |
1da177e4 | 1513 | { |
48c23d3e | 1514 | int sendToTransport = 1, orig_bufflen; |
1da177e4 LT |
1515 | union ata_cdb ataCdb; |
1516 | ||
1517 | /* Make sure driver was initialized */ | |
1518 | ||
446230f5 | 1519 | if (us->extra == NULL) { |
191648d0 | 1520 | usb_stor_dbg(us, "ERROR Driver not initialized\n"); |
446230f5 CIK |
1521 | srb->result = DID_ERROR << 16; |
1522 | return; | |
1523 | } | |
1da177e4 | 1524 | |
48c23d3e BH |
1525 | scsi_set_resid(srb, 0); |
1526 | /* scsi_bufflen might change in protocol translation to ata */ | |
1527 | orig_bufflen = scsi_bufflen(srb); | |
1da177e4 LT |
1528 | sendToTransport = isd200_scsi_to_ata(srb, us, &ataCdb); |
1529 | ||
1530 | /* send the command to the transport layer */ | |
1531 | if (sendToTransport) | |
1532 | isd200_invoke_transport(us, srb, &ataCdb); | |
48c23d3e BH |
1533 | |
1534 | isd200_srb_set_bufflen(srb, orig_bufflen); | |
1da177e4 | 1535 | } |
32d5493e | 1536 | |
aa519be3 AM |
1537 | static struct scsi_host_template isd200_host_template; |
1538 | ||
32d5493e AS |
1539 | static int isd200_probe(struct usb_interface *intf, |
1540 | const struct usb_device_id *id) | |
1541 | { | |
1542 | struct us_data *us; | |
1543 | int result; | |
1544 | ||
1545 | result = usb_stor_probe1(&us, intf, id, | |
aa519be3 AM |
1546 | (id - isd200_usb_ids) + isd200_unusual_dev_list, |
1547 | &isd200_host_template); | |
32d5493e AS |
1548 | if (result) |
1549 | return result; | |
1550 | ||
1551 | us->protocol_name = "ISD200 ATA/ATAPI"; | |
1552 | us->proto_handler = isd200_ata_command; | |
1553 | ||
1554 | result = usb_stor_probe2(us); | |
1555 | return result; | |
1556 | } | |
1557 | ||
1558 | static struct usb_driver isd200_driver = { | |
aa519be3 | 1559 | .name = DRV_NAME, |
32d5493e AS |
1560 | .probe = isd200_probe, |
1561 | .disconnect = usb_stor_disconnect, | |
1562 | .suspend = usb_stor_suspend, | |
1563 | .resume = usb_stor_resume, | |
1564 | .reset_resume = usb_stor_reset_resume, | |
1565 | .pre_reset = usb_stor_pre_reset, | |
1566 | .post_reset = usb_stor_post_reset, | |
1567 | .id_table = isd200_usb_ids, | |
1568 | .soft_unbind = 1, | |
e73b2db6 | 1569 | .no_dynamic_id = 1, |
32d5493e AS |
1570 | }; |
1571 | ||
aa519be3 | 1572 | module_usb_stor_driver(isd200_driver, isd200_host_template, DRV_NAME); |