Commit | Line | Data |
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f0183a33 FB |
1 | /* |
2 | * Driver for SCM Microsystems (a.k.a. Shuttle) USB-ATAPI cable | |
1da177e4 LT |
3 | * |
4 | * Current development and maintenance by: | |
5 | * (c) 2000, 2001 Robert Baruch (autophile@starband.net) | |
6 | * (c) 2004, 2005 Daniel Drake <dsd@gentoo.org> | |
7 | * | |
8 | * Developed with the assistance of: | |
9 | * (c) 2002 Alan Stern <stern@rowland.org> | |
10 | * | |
11 | * Flash support based on earlier work by: | |
12 | * (c) 2002 Thomas Kreiling <usbdev@sm04.de> | |
13 | * | |
14 | * Many originally ATAPI devices were slightly modified to meet the USB | |
15 | * market by using some kind of translation from ATAPI to USB on the host, | |
16 | * and the peripheral would translate from USB back to ATAPI. | |
17 | * | |
18 | * SCM Microsystems (www.scmmicro.com) makes a device, sold to OEM's only, | |
19 | * which does the USB-to-ATAPI conversion. By obtaining the data sheet on | |
20 | * their device under nondisclosure agreement, I have been able to write | |
21 | * this driver for Linux. | |
22 | * | |
23 | * The chip used in the device can also be used for EPP and ISA translation | |
24 | * as well. This driver is only guaranteed to work with the ATAPI | |
25 | * translation. | |
26 | * | |
27 | * See the Kconfig help text for a list of devices known to be supported by | |
28 | * this driver. | |
29 | * | |
30 | * This program is free software; you can redistribute it and/or modify it | |
31 | * under the terms of the GNU General Public License as published by the | |
32 | * Free Software Foundation; either version 2, or (at your option) any | |
33 | * later version. | |
34 | * | |
35 | * This program is distributed in the hope that it will be useful, but | |
36 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
37 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
38 | * General Public License for more details. | |
39 | * | |
40 | * You should have received a copy of the GNU General Public License along | |
41 | * with this program; if not, write to the Free Software Foundation, Inc., | |
42 | * 675 Mass Ave, Cambridge, MA 02139, USA. | |
43 | */ | |
44 | ||
1da177e4 | 45 | #include <linux/errno.h> |
26d6818f | 46 | #include <linux/module.h> |
1da177e4 LT |
47 | #include <linux/slab.h> |
48 | #include <linux/cdrom.h> | |
49 | ||
50 | #include <scsi/scsi.h> | |
51 | #include <scsi/scsi_cmnd.h> | |
52 | ||
53 | #include "usb.h" | |
54 | #include "transport.h" | |
55 | #include "protocol.h" | |
56 | #include "debug.h" | |
aa519be3 AM |
57 | #include "scsiglue.h" |
58 | ||
59 | #define DRV_NAME "ums-usbat" | |
26d6818f | 60 | |
4246b06a MG |
61 | MODULE_DESCRIPTION("Driver for SCM Microsystems (a.k.a. Shuttle) USB-ATAPI cable"); |
62 | MODULE_AUTHOR("Daniel Drake <dsd@gentoo.org>, Robert Baruch <autophile@starband.net>"); | |
63 | MODULE_LICENSE("GPL"); | |
26d6818f AS |
64 | |
65 | /* Supported device types */ | |
66 | #define USBAT_DEV_HP8200 0x01 | |
67 | #define USBAT_DEV_FLASH 0x02 | |
68 | ||
69 | #define USBAT_EPP_PORT 0x10 | |
70 | #define USBAT_EPP_REGISTER 0x30 | |
71 | #define USBAT_ATA 0x40 | |
72 | #define USBAT_ISA 0x50 | |
73 | ||
74 | /* Commands (need to be logically OR'd with an access type */ | |
75 | #define USBAT_CMD_READ_REG 0x00 | |
76 | #define USBAT_CMD_WRITE_REG 0x01 | |
77 | #define USBAT_CMD_READ_BLOCK 0x02 | |
78 | #define USBAT_CMD_WRITE_BLOCK 0x03 | |
79 | #define USBAT_CMD_COND_READ_BLOCK 0x04 | |
80 | #define USBAT_CMD_COND_WRITE_BLOCK 0x05 | |
81 | #define USBAT_CMD_WRITE_REGS 0x07 | |
82 | ||
83 | /* Commands (these don't need an access type) */ | |
84 | #define USBAT_CMD_EXEC_CMD 0x80 | |
85 | #define USBAT_CMD_SET_FEAT 0x81 | |
86 | #define USBAT_CMD_UIO 0x82 | |
87 | ||
88 | /* Methods of accessing UIO register */ | |
89 | #define USBAT_UIO_READ 1 | |
90 | #define USBAT_UIO_WRITE 0 | |
91 | ||
92 | /* Qualifier bits */ | |
93 | #define USBAT_QUAL_FCQ 0x20 /* full compare */ | |
94 | #define USBAT_QUAL_ALQ 0x10 /* auto load subcount */ | |
95 | ||
96 | /* USBAT Flash Media status types */ | |
97 | #define USBAT_FLASH_MEDIA_NONE 0 | |
98 | #define USBAT_FLASH_MEDIA_CF 1 | |
99 | ||
100 | /* USBAT Flash Media change types */ | |
101 | #define USBAT_FLASH_MEDIA_SAME 0 | |
102 | #define USBAT_FLASH_MEDIA_CHANGED 1 | |
103 | ||
104 | /* USBAT ATA registers */ | |
105 | #define USBAT_ATA_DATA 0x10 /* read/write data (R/W) */ | |
106 | #define USBAT_ATA_FEATURES 0x11 /* set features (W) */ | |
107 | #define USBAT_ATA_ERROR 0x11 /* error (R) */ | |
108 | #define USBAT_ATA_SECCNT 0x12 /* sector count (R/W) */ | |
109 | #define USBAT_ATA_SECNUM 0x13 /* sector number (R/W) */ | |
110 | #define USBAT_ATA_LBA_ME 0x14 /* cylinder low (R/W) */ | |
111 | #define USBAT_ATA_LBA_HI 0x15 /* cylinder high (R/W) */ | |
112 | #define USBAT_ATA_DEVICE 0x16 /* head/device selection (R/W) */ | |
113 | #define USBAT_ATA_STATUS 0x17 /* device status (R) */ | |
114 | #define USBAT_ATA_CMD 0x17 /* device command (W) */ | |
115 | #define USBAT_ATA_ALTSTATUS 0x0E /* status (no clear IRQ) (R) */ | |
116 | ||
117 | /* USBAT User I/O Data registers */ | |
118 | #define USBAT_UIO_EPAD 0x80 /* Enable Peripheral Control Signals */ | |
119 | #define USBAT_UIO_CDT 0x40 /* Card Detect (Read Only) */ | |
120 | /* CDT = ACKD & !UI1 & !UI0 */ | |
121 | #define USBAT_UIO_1 0x20 /* I/O 1 */ | |
122 | #define USBAT_UIO_0 0x10 /* I/O 0 */ | |
123 | #define USBAT_UIO_EPP_ATA 0x08 /* 1=EPP mode, 0=ATA mode */ | |
124 | #define USBAT_UIO_UI1 0x04 /* Input 1 */ | |
125 | #define USBAT_UIO_UI0 0x02 /* Input 0 */ | |
126 | #define USBAT_UIO_INTR_ACK 0x01 /* Interrupt (ATA/ISA)/Acknowledge (EPP) */ | |
127 | ||
128 | /* USBAT User I/O Enable registers */ | |
129 | #define USBAT_UIO_DRVRST 0x80 /* Reset Peripheral */ | |
130 | #define USBAT_UIO_ACKD 0x40 /* Enable Card Detect */ | |
131 | #define USBAT_UIO_OE1 0x20 /* I/O 1 set=output/clr=input */ | |
132 | /* If ACKD=1, set OE1 to 1 also. */ | |
133 | #define USBAT_UIO_OE0 0x10 /* I/O 0 set=output/clr=input */ | |
134 | #define USBAT_UIO_ADPRST 0x01 /* Reset SCM chip */ | |
135 | ||
136 | /* USBAT Features */ | |
137 | #define USBAT_FEAT_ETEN 0x80 /* External trigger enable */ | |
138 | #define USBAT_FEAT_U1 0x08 | |
139 | #define USBAT_FEAT_U0 0x04 | |
140 | #define USBAT_FEAT_ET1 0x02 | |
141 | #define USBAT_FEAT_ET2 0x01 | |
142 | ||
143 | struct usbat_info { | |
144 | int devicetype; | |
145 | ||
146 | /* Used for Flash readers only */ | |
147 | unsigned long sectors; /* total sector count */ | |
148 | unsigned long ssize; /* sector size in bytes */ | |
149 | ||
150 | unsigned char sense_key; | |
151 | unsigned long sense_asc; /* additional sense code */ | |
152 | unsigned long sense_ascq; /* additional sense code qualifier */ | |
153 | }; | |
1da177e4 LT |
154 | |
155 | #define short_pack(LSB,MSB) ( ((u16)(LSB)) | ( ((u16)(MSB))<<8 ) ) | |
156 | #define LSB_of(s) ((s)&0xFF) | |
157 | #define MSB_of(s) ((s)>>8) | |
158 | ||
159 | static int transferred = 0; | |
160 | ||
161 | static int usbat_flash_transport(struct scsi_cmnd * srb, struct us_data *us); | |
162 | static int usbat_hp8200e_transport(struct scsi_cmnd *srb, struct us_data *us); | |
163 | ||
26d6818f AS |
164 | static int init_usbat_cd(struct us_data *us); |
165 | static int init_usbat_flash(struct us_data *us); | |
166 | ||
167 | ||
168 | /* | |
169 | * The table of devices | |
170 | */ | |
171 | #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \ | |
172 | vendorName, productName, useProtocol, useTransport, \ | |
173 | initFunction, flags) \ | |
174 | { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ | |
f61870ee | 175 | .driver_info = (flags) } |
26d6818f | 176 | |
ce3af89e | 177 | static struct usb_device_id usbat_usb_ids[] = { |
26d6818f AS |
178 | # include "unusual_usbat.h" |
179 | { } /* Terminating entry */ | |
180 | }; | |
181 | MODULE_DEVICE_TABLE(usb, usbat_usb_ids); | |
182 | ||
183 | #undef UNUSUAL_DEV | |
184 | ||
185 | /* | |
186 | * The flags table | |
187 | */ | |
188 | #define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \ | |
189 | vendor_name, product_name, use_protocol, use_transport, \ | |
190 | init_function, Flags) \ | |
191 | { \ | |
192 | .vendorName = vendor_name, \ | |
193 | .productName = product_name, \ | |
194 | .useProtocol = use_protocol, \ | |
195 | .useTransport = use_transport, \ | |
196 | .initFunction = init_function, \ | |
197 | } | |
198 | ||
199 | static struct us_unusual_dev usbat_unusual_dev_list[] = { | |
200 | # include "unusual_usbat.h" | |
201 | { } /* Terminating entry */ | |
202 | }; | |
203 | ||
204 | #undef UNUSUAL_DEV | |
205 | ||
1da177e4 | 206 | /* |
b7b1e655 | 207 | * Convenience function to produce an ATA read/write sectors command |
1da177e4 LT |
208 | * Use cmd=0x20 for read, cmd=0x30 for write |
209 | */ | |
b7b1e655 | 210 | static void usbat_pack_ata_sector_cmd(unsigned char *buf, |
1da177e4 LT |
211 | unsigned char thistime, |
212 | u32 sector, unsigned char cmd) | |
213 | { | |
214 | buf[0] = 0; | |
215 | buf[1] = thistime; | |
216 | buf[2] = sector & 0xFF; | |
217 | buf[3] = (sector >> 8) & 0xFF; | |
218 | buf[4] = (sector >> 16) & 0xFF; | |
219 | buf[5] = 0xE0 | ((sector >> 24) & 0x0F); | |
220 | buf[6] = cmd; | |
221 | } | |
222 | ||
223 | /* | |
224 | * Convenience function to get the device type (flash or hp8200) | |
225 | */ | |
226 | static int usbat_get_device_type(struct us_data *us) | |
227 | { | |
228 | return ((struct usbat_info*)us->extra)->devicetype; | |
229 | } | |
230 | ||
231 | /* | |
232 | * Read a register from the device | |
233 | */ | |
234 | static int usbat_read(struct us_data *us, | |
235 | unsigned char access, | |
236 | unsigned char reg, | |
237 | unsigned char *content) | |
238 | { | |
239 | return usb_stor_ctrl_transfer(us, | |
240 | us->recv_ctrl_pipe, | |
241 | access | USBAT_CMD_READ_REG, | |
242 | 0xC0, | |
243 | (u16)reg, | |
244 | 0, | |
245 | content, | |
246 | 1); | |
247 | } | |
248 | ||
249 | /* | |
250 | * Write to a register on the device | |
251 | */ | |
252 | static int usbat_write(struct us_data *us, | |
253 | unsigned char access, | |
254 | unsigned char reg, | |
255 | unsigned char content) | |
256 | { | |
257 | return usb_stor_ctrl_transfer(us, | |
258 | us->send_ctrl_pipe, | |
259 | access | USBAT_CMD_WRITE_REG, | |
260 | 0x40, | |
261 | short_pack(reg, content), | |
262 | 0, | |
263 | NULL, | |
264 | 0); | |
265 | } | |
266 | ||
267 | /* | |
268 | * Convenience function to perform a bulk read | |
269 | */ | |
270 | static int usbat_bulk_read(struct us_data *us, | |
4776e99e | 271 | void* buf, |
141804d4 PC |
272 | unsigned int len, |
273 | int use_sg) | |
1da177e4 LT |
274 | { |
275 | if (len == 0) | |
276 | return USB_STOR_XFER_GOOD; | |
277 | ||
191648d0 | 278 | usb_stor_dbg(us, "len = %d\n", len); |
4776e99e | 279 | return usb_stor_bulk_transfer_sg(us, us->recv_bulk_pipe, buf, len, use_sg, NULL); |
1da177e4 LT |
280 | } |
281 | ||
282 | /* | |
283 | * Convenience function to perform a bulk write | |
284 | */ | |
285 | static int usbat_bulk_write(struct us_data *us, | |
4776e99e | 286 | void* buf, |
141804d4 PC |
287 | unsigned int len, |
288 | int use_sg) | |
1da177e4 LT |
289 | { |
290 | if (len == 0) | |
291 | return USB_STOR_XFER_GOOD; | |
292 | ||
191648d0 | 293 | usb_stor_dbg(us, "len = %d\n", len); |
4776e99e | 294 | return usb_stor_bulk_transfer_sg(us, us->send_bulk_pipe, buf, len, use_sg, NULL); |
1da177e4 LT |
295 | } |
296 | ||
297 | /* | |
298 | * Some USBAT-specific commands can only be executed over a command transport | |
299 | * This transport allows one (len=8) or two (len=16) vendor-specific commands | |
300 | * to be executed. | |
301 | */ | |
302 | static int usbat_execute_command(struct us_data *us, | |
303 | unsigned char *commands, | |
304 | unsigned int len) | |
305 | { | |
306 | return usb_stor_ctrl_transfer(us, us->send_ctrl_pipe, | |
307 | USBAT_CMD_EXEC_CMD, 0x40, 0, 0, | |
308 | commands, len); | |
309 | } | |
310 | ||
311 | /* | |
312 | * Read the status register | |
313 | */ | |
314 | static int usbat_get_status(struct us_data *us, unsigned char *status) | |
315 | { | |
316 | int rc; | |
317 | rc = usbat_read(us, USBAT_ATA, USBAT_ATA_STATUS, status); | |
318 | ||
191648d0 | 319 | usb_stor_dbg(us, "0x%02X\n", *status); |
1da177e4 LT |
320 | return rc; |
321 | } | |
322 | ||
323 | /* | |
324 | * Check the device status | |
325 | */ | |
326 | static int usbat_check_status(struct us_data *us) | |
327 | { | |
328 | unsigned char *reply = us->iobuf; | |
329 | int rc; | |
330 | ||
1da177e4 LT |
331 | rc = usbat_get_status(us, reply); |
332 | if (rc != USB_STOR_XFER_GOOD) | |
333 | return USB_STOR_TRANSPORT_FAILED; | |
334 | ||
b7b1e655 DD |
335 | /* error/check condition (0x51 is ok) */ |
336 | if (*reply & 0x01 && *reply != 0x51) | |
1da177e4 LT |
337 | return USB_STOR_TRANSPORT_FAILED; |
338 | ||
b7b1e655 DD |
339 | /* device fault */ |
340 | if (*reply & 0x20) | |
1da177e4 LT |
341 | return USB_STOR_TRANSPORT_FAILED; |
342 | ||
343 | return USB_STOR_TRANSPORT_GOOD; | |
344 | } | |
345 | ||
346 | /* | |
25985edc | 347 | * Stores critical information in internal registers in preparation for the execution |
1da177e4 LT |
348 | * of a conditional usbat_read_blocks or usbat_write_blocks call. |
349 | */ | |
350 | static int usbat_set_shuttle_features(struct us_data *us, | |
351 | unsigned char external_trigger, | |
352 | unsigned char epp_control, | |
353 | unsigned char mask_byte, | |
354 | unsigned char test_pattern, | |
355 | unsigned char subcountH, | |
356 | unsigned char subcountL) | |
357 | { | |
358 | unsigned char *command = us->iobuf; | |
359 | ||
360 | command[0] = 0x40; | |
361 | command[1] = USBAT_CMD_SET_FEAT; | |
362 | ||
b7b1e655 DD |
363 | /* |
364 | * The only bit relevant to ATA access is bit 6 | |
365 | * which defines 8 bit data access (set) or 16 bit (unset) | |
366 | */ | |
1da177e4 LT |
367 | command[2] = epp_control; |
368 | ||
b7b1e655 DD |
369 | /* |
370 | * If FCQ is set in the qualifier (defined in R/W cmd), then bits U0, U1, | |
371 | * ET1 and ET2 define an external event to be checked for on event of a | |
372 | * _read_blocks or _write_blocks operation. The read/write will not take | |
373 | * place unless the defined trigger signal is active. | |
374 | */ | |
1da177e4 LT |
375 | command[3] = external_trigger; |
376 | ||
b7b1e655 DD |
377 | /* |
378 | * The resultant byte of the mask operation (see mask_byte) is compared for | |
379 | * equivalence with this test pattern. If equal, the read/write will take | |
380 | * place. | |
381 | */ | |
1da177e4 LT |
382 | command[4] = test_pattern; |
383 | ||
b7b1e655 DD |
384 | /* |
385 | * This value is logically ANDed with the status register field specified | |
386 | * in the read/write command. | |
387 | */ | |
1da177e4 LT |
388 | command[5] = mask_byte; |
389 | ||
b7b1e655 DD |
390 | /* |
391 | * If ALQ is set in the qualifier, this field contains the address of the | |
392 | * registers where the byte count should be read for transferring the data. | |
393 | * If ALQ is not set, then this field contains the number of bytes to be | |
394 | * transferred. | |
395 | */ | |
1da177e4 LT |
396 | command[6] = subcountL; |
397 | command[7] = subcountH; | |
398 | ||
399 | return usbat_execute_command(us, command, 8); | |
400 | } | |
401 | ||
402 | /* | |
403 | * Block, waiting for an ATA device to become not busy or to report | |
404 | * an error condition. | |
405 | */ | |
406 | static int usbat_wait_not_busy(struct us_data *us, int minutes) | |
407 | { | |
408 | int i; | |
409 | int result; | |
410 | unsigned char *status = us->iobuf; | |
411 | ||
f0183a33 FB |
412 | /* |
413 | * Synchronizing cache on a CDR could take a heck of a long time, | |
1da177e4 LT |
414 | * but probably not more than 10 minutes or so. On the other hand, |
415 | * doing a full blank on a CDRW at speed 1 will take about 75 | |
416 | * minutes! | |
417 | */ | |
418 | ||
419 | for (i=0; i<1200+minutes*60; i++) { | |
420 | ||
421 | result = usbat_get_status(us, status); | |
422 | ||
423 | if (result!=USB_STOR_XFER_GOOD) | |
424 | return USB_STOR_TRANSPORT_ERROR; | |
b7b1e655 | 425 | if (*status & 0x01) { /* check condition */ |
1da177e4 LT |
426 | result = usbat_read(us, USBAT_ATA, 0x10, status); |
427 | return USB_STOR_TRANSPORT_FAILED; | |
428 | } | |
b7b1e655 | 429 | if (*status & 0x20) /* device fault */ |
1da177e4 LT |
430 | return USB_STOR_TRANSPORT_FAILED; |
431 | ||
b7b1e655 | 432 | if ((*status & 0x80)==0x00) { /* not busy */ |
191648d0 | 433 | usb_stor_dbg(us, "Waited not busy for %d steps\n", i); |
1da177e4 LT |
434 | return USB_STOR_TRANSPORT_GOOD; |
435 | } | |
436 | ||
437 | if (i<500) | |
b7b1e655 | 438 | msleep(10); /* 5 seconds */ |
1da177e4 | 439 | else if (i<700) |
b7b1e655 | 440 | msleep(50); /* 10 seconds */ |
1da177e4 | 441 | else if (i<1200) |
b7b1e655 | 442 | msleep(100); /* 50 seconds */ |
1da177e4 | 443 | else |
b7b1e655 | 444 | msleep(1000); /* X minutes */ |
1da177e4 LT |
445 | } |
446 | ||
191648d0 JP |
447 | usb_stor_dbg(us, "Waited not busy for %d minutes, timing out\n", |
448 | minutes); | |
1da177e4 LT |
449 | return USB_STOR_TRANSPORT_FAILED; |
450 | } | |
451 | ||
452 | /* | |
453 | * Read block data from the data register | |
454 | */ | |
455 | static int usbat_read_block(struct us_data *us, | |
4776e99e | 456 | void* buf, |
141804d4 PC |
457 | unsigned short len, |
458 | int use_sg) | |
1da177e4 LT |
459 | { |
460 | int result; | |
461 | unsigned char *command = us->iobuf; | |
462 | ||
463 | if (!len) | |
464 | return USB_STOR_TRANSPORT_GOOD; | |
465 | ||
466 | command[0] = 0xC0; | |
467 | command[1] = USBAT_ATA | USBAT_CMD_READ_BLOCK; | |
468 | command[2] = USBAT_ATA_DATA; | |
469 | command[3] = 0; | |
470 | command[4] = 0; | |
471 | command[5] = 0; | |
472 | command[6] = LSB_of(len); | |
473 | command[7] = MSB_of(len); | |
474 | ||
475 | result = usbat_execute_command(us, command, 8); | |
476 | if (result != USB_STOR_XFER_GOOD) | |
477 | return USB_STOR_TRANSPORT_ERROR; | |
478 | ||
4776e99e | 479 | result = usbat_bulk_read(us, buf, len, use_sg); |
1da177e4 LT |
480 | return (result == USB_STOR_XFER_GOOD ? |
481 | USB_STOR_TRANSPORT_GOOD : USB_STOR_TRANSPORT_ERROR); | |
482 | } | |
483 | ||
484 | /* | |
485 | * Write block data via the data register | |
486 | */ | |
487 | static int usbat_write_block(struct us_data *us, | |
488 | unsigned char access, | |
4776e99e | 489 | void* buf, |
1da177e4 | 490 | unsigned short len, |
141804d4 PC |
491 | int minutes, |
492 | int use_sg) | |
1da177e4 LT |
493 | { |
494 | int result; | |
495 | unsigned char *command = us->iobuf; | |
496 | ||
497 | if (!len) | |
498 | return USB_STOR_TRANSPORT_GOOD; | |
499 | ||
500 | command[0] = 0x40; | |
501 | command[1] = access | USBAT_CMD_WRITE_BLOCK; | |
502 | command[2] = USBAT_ATA_DATA; | |
503 | command[3] = 0; | |
504 | command[4] = 0; | |
505 | command[5] = 0; | |
506 | command[6] = LSB_of(len); | |
507 | command[7] = MSB_of(len); | |
508 | ||
509 | result = usbat_execute_command(us, command, 8); | |
510 | ||
511 | if (result != USB_STOR_XFER_GOOD) | |
512 | return USB_STOR_TRANSPORT_ERROR; | |
513 | ||
4776e99e | 514 | result = usbat_bulk_write(us, buf, len, use_sg); |
1da177e4 LT |
515 | if (result != USB_STOR_XFER_GOOD) |
516 | return USB_STOR_TRANSPORT_ERROR; | |
517 | ||
518 | return usbat_wait_not_busy(us, minutes); | |
519 | } | |
520 | ||
521 | /* | |
522 | * Process read and write requests | |
523 | */ | |
524 | static int usbat_hp8200e_rw_block_test(struct us_data *us, | |
525 | unsigned char access, | |
526 | unsigned char *registers, | |
527 | unsigned char *data_out, | |
528 | unsigned short num_registers, | |
529 | unsigned char data_reg, | |
530 | unsigned char status_reg, | |
531 | unsigned char timeout, | |
532 | unsigned char qualifier, | |
533 | int direction, | |
4776e99e | 534 | void *buf, |
1da177e4 LT |
535 | unsigned short len, |
536 | int use_sg, | |
537 | int minutes) | |
538 | { | |
539 | int result; | |
540 | unsigned int pipe = (direction == DMA_FROM_DEVICE) ? | |
541 | us->recv_bulk_pipe : us->send_bulk_pipe; | |
542 | ||
543 | unsigned char *command = us->iobuf; | |
544 | int i, j; | |
545 | int cmdlen; | |
546 | unsigned char *data = us->iobuf; | |
547 | unsigned char *status = us->iobuf; | |
548 | ||
549 | BUG_ON(num_registers > US_IOBUF_SIZE/2); | |
550 | ||
551 | for (i=0; i<20; i++) { | |
552 | ||
553 | /* | |
554 | * The first time we send the full command, which consists | |
555 | * of downloading the SCSI command followed by downloading | |
556 | * the data via a write-and-test. Any other time we only | |
557 | * send the command to download the data -- the SCSI command | |
558 | * is still 'active' in some sense in the device. | |
559 | * | |
560 | * We're only going to try sending the data 10 times. After | |
561 | * that, we just return a failure. | |
562 | */ | |
563 | ||
564 | if (i==0) { | |
565 | cmdlen = 16; | |
b7b1e655 DD |
566 | /* |
567 | * Write to multiple registers | |
568 | * Not really sure the 0x07, 0x17, 0xfc, 0xe7 is | |
569 | * necessary here, but that's what came out of the | |
570 | * trace every single time. | |
571 | */ | |
1da177e4 LT |
572 | command[0] = 0x40; |
573 | command[1] = access | USBAT_CMD_WRITE_REGS; | |
574 | command[2] = 0x07; | |
575 | command[3] = 0x17; | |
576 | command[4] = 0xFC; | |
577 | command[5] = 0xE7; | |
578 | command[6] = LSB_of(num_registers*2); | |
579 | command[7] = MSB_of(num_registers*2); | |
580 | } else | |
581 | cmdlen = 8; | |
582 | ||
b7b1e655 | 583 | /* Conditionally read or write blocks */ |
1da177e4 LT |
584 | command[cmdlen-8] = (direction==DMA_TO_DEVICE ? 0x40 : 0xC0); |
585 | command[cmdlen-7] = access | | |
586 | (direction==DMA_TO_DEVICE ? | |
587 | USBAT_CMD_COND_WRITE_BLOCK : USBAT_CMD_COND_READ_BLOCK); | |
588 | command[cmdlen-6] = data_reg; | |
589 | command[cmdlen-5] = status_reg; | |
590 | command[cmdlen-4] = timeout; | |
591 | command[cmdlen-3] = qualifier; | |
592 | command[cmdlen-2] = LSB_of(len); | |
593 | command[cmdlen-1] = MSB_of(len); | |
594 | ||
595 | result = usbat_execute_command(us, command, cmdlen); | |
596 | ||
597 | if (result != USB_STOR_XFER_GOOD) | |
598 | return USB_STOR_TRANSPORT_ERROR; | |
599 | ||
600 | if (i==0) { | |
601 | ||
602 | for (j=0; j<num_registers; j++) { | |
603 | data[j<<1] = registers[j]; | |
604 | data[1+(j<<1)] = data_out[j]; | |
605 | } | |
606 | ||
141804d4 | 607 | result = usbat_bulk_write(us, data, num_registers*2, 0); |
1da177e4 LT |
608 | if (result != USB_STOR_XFER_GOOD) |
609 | return USB_STOR_TRANSPORT_ERROR; | |
610 | ||
611 | } | |
612 | ||
1da177e4 | 613 | result = usb_stor_bulk_transfer_sg(us, |
4776e99e | 614 | pipe, buf, len, use_sg, NULL); |
1da177e4 LT |
615 | |
616 | /* | |
617 | * If we get a stall on the bulk download, we'll retry | |
618 | * the bulk download -- but not the SCSI command because | |
619 | * in some sense the SCSI command is still 'active' and | |
620 | * waiting for the data. Don't ask me why this should be; | |
621 | * I'm only following what the Windoze driver did. | |
622 | * | |
623 | * Note that a stall for the test-and-read/write command means | |
624 | * that the test failed. In this case we're testing to make | |
625 | * sure that the device is error-free | |
626 | * (i.e. bit 0 -- CHK -- of status is 0). The most likely | |
627 | * hypothesis is that the USBAT chip somehow knows what | |
628 | * the device will accept, but doesn't give the device any | |
629 | * data until all data is received. Thus, the device would | |
630 | * still be waiting for the first byte of data if a stall | |
631 | * occurs, even if the stall implies that some data was | |
632 | * transferred. | |
633 | */ | |
634 | ||
635 | if (result == USB_STOR_XFER_SHORT || | |
636 | result == USB_STOR_XFER_STALLED) { | |
637 | ||
638 | /* | |
639 | * If we're reading and we stalled, then clear | |
640 | * the bulk output pipe only the first time. | |
641 | */ | |
642 | ||
643 | if (direction==DMA_FROM_DEVICE && i==0) { | |
644 | if (usb_stor_clear_halt(us, | |
645 | us->send_bulk_pipe) < 0) | |
646 | return USB_STOR_TRANSPORT_ERROR; | |
647 | } | |
648 | ||
649 | /* | |
650 | * Read status: is the device angry, or just busy? | |
651 | */ | |
652 | ||
653 | result = usbat_read(us, USBAT_ATA, | |
654 | direction==DMA_TO_DEVICE ? | |
655 | USBAT_ATA_STATUS : USBAT_ATA_ALTSTATUS, | |
656 | status); | |
657 | ||
658 | if (result!=USB_STOR_XFER_GOOD) | |
659 | return USB_STOR_TRANSPORT_ERROR; | |
b7b1e655 | 660 | if (*status & 0x01) /* check condition */ |
1da177e4 | 661 | return USB_STOR_TRANSPORT_FAILED; |
b7b1e655 | 662 | if (*status & 0x20) /* device fault */ |
1da177e4 LT |
663 | return USB_STOR_TRANSPORT_FAILED; |
664 | ||
191648d0 JP |
665 | usb_stor_dbg(us, "Redoing %s\n", |
666 | direction == DMA_TO_DEVICE | |
667 | ? "write" : "read"); | |
1da177e4 LT |
668 | |
669 | } else if (result != USB_STOR_XFER_GOOD) | |
670 | return USB_STOR_TRANSPORT_ERROR; | |
671 | else | |
672 | return usbat_wait_not_busy(us, minutes); | |
673 | ||
674 | } | |
675 | ||
191648d0 JP |
676 | usb_stor_dbg(us, "Bummer! %s bulk data 20 times failed\n", |
677 | direction == DMA_TO_DEVICE ? "Writing" : "Reading"); | |
1da177e4 LT |
678 | |
679 | return USB_STOR_TRANSPORT_FAILED; | |
680 | } | |
681 | ||
682 | /* | |
683 | * Write to multiple registers: | |
684 | * Allows us to write specific data to any registers. The data to be written | |
685 | * gets packed in this sequence: reg0, data0, reg1, data1, ..., regN, dataN | |
686 | * which gets sent through bulk out. | |
687 | * Not designed for large transfers of data! | |
688 | */ | |
689 | static int usbat_multiple_write(struct us_data *us, | |
690 | unsigned char *registers, | |
691 | unsigned char *data_out, | |
692 | unsigned short num_registers) | |
693 | { | |
694 | int i, result; | |
695 | unsigned char *data = us->iobuf; | |
696 | unsigned char *command = us->iobuf; | |
697 | ||
698 | BUG_ON(num_registers > US_IOBUF_SIZE/2); | |
699 | ||
b7b1e655 | 700 | /* Write to multiple registers, ATA access */ |
1da177e4 LT |
701 | command[0] = 0x40; |
702 | command[1] = USBAT_ATA | USBAT_CMD_WRITE_REGS; | |
703 | ||
b7b1e655 | 704 | /* No relevance */ |
1da177e4 LT |
705 | command[2] = 0; |
706 | command[3] = 0; | |
707 | command[4] = 0; | |
708 | command[5] = 0; | |
709 | ||
b7b1e655 | 710 | /* Number of bytes to be transferred (incl. addresses and data) */ |
1da177e4 LT |
711 | command[6] = LSB_of(num_registers*2); |
712 | command[7] = MSB_of(num_registers*2); | |
713 | ||
b7b1e655 | 714 | /* The setup command */ |
1da177e4 LT |
715 | result = usbat_execute_command(us, command, 8); |
716 | if (result != USB_STOR_XFER_GOOD) | |
717 | return USB_STOR_TRANSPORT_ERROR; | |
718 | ||
b7b1e655 | 719 | /* Create the reg/data, reg/data sequence */ |
1da177e4 LT |
720 | for (i=0; i<num_registers; i++) { |
721 | data[i<<1] = registers[i]; | |
722 | data[1+(i<<1)] = data_out[i]; | |
723 | } | |
724 | ||
b7b1e655 | 725 | /* Send the data */ |
141804d4 | 726 | result = usbat_bulk_write(us, data, num_registers*2, 0); |
1da177e4 LT |
727 | if (result != USB_STOR_XFER_GOOD) |
728 | return USB_STOR_TRANSPORT_ERROR; | |
729 | ||
730 | if (usbat_get_device_type(us) == USBAT_DEV_HP8200) | |
731 | return usbat_wait_not_busy(us, 0); | |
732 | else | |
733 | return USB_STOR_TRANSPORT_GOOD; | |
734 | } | |
735 | ||
736 | /* | |
737 | * Conditionally read blocks from device: | |
738 | * Allows us to read blocks from a specific data register, based upon the | |
739 | * condition that a status register can be successfully masked with a status | |
740 | * qualifier. If this condition is not initially met, the read will wait | |
741 | * up until a maximum amount of time has elapsed, as specified by timeout. | |
742 | * The read will start when the condition is met, otherwise the command aborts. | |
743 | * | |
744 | * The qualifier defined here is not the value that is masked, it defines | |
745 | * conditions for the write to take place. The actual masked qualifier (and | |
746 | * other related details) are defined beforehand with _set_shuttle_features(). | |
747 | */ | |
748 | static int usbat_read_blocks(struct us_data *us, | |
4776e99e | 749 | void* buffer, |
141804d4 PC |
750 | int len, |
751 | int use_sg) | |
1da177e4 LT |
752 | { |
753 | int result; | |
754 | unsigned char *command = us->iobuf; | |
755 | ||
756 | command[0] = 0xC0; | |
757 | command[1] = USBAT_ATA | USBAT_CMD_COND_READ_BLOCK; | |
758 | command[2] = USBAT_ATA_DATA; | |
759 | command[3] = USBAT_ATA_STATUS; | |
b7b1e655 | 760 | command[4] = 0xFD; /* Timeout (ms); */ |
1da177e4 LT |
761 | command[5] = USBAT_QUAL_FCQ; |
762 | command[6] = LSB_of(len); | |
763 | command[7] = MSB_of(len); | |
764 | ||
b7b1e655 | 765 | /* Multiple block read setup command */ |
1da177e4 LT |
766 | result = usbat_execute_command(us, command, 8); |
767 | if (result != USB_STOR_XFER_GOOD) | |
768 | return USB_STOR_TRANSPORT_FAILED; | |
769 | ||
b7b1e655 | 770 | /* Read the blocks we just asked for */ |
141804d4 | 771 | result = usbat_bulk_read(us, buffer, len, use_sg); |
1da177e4 LT |
772 | if (result != USB_STOR_XFER_GOOD) |
773 | return USB_STOR_TRANSPORT_FAILED; | |
774 | ||
775 | return USB_STOR_TRANSPORT_GOOD; | |
776 | } | |
777 | ||
778 | /* | |
779 | * Conditionally write blocks to device: | |
780 | * Allows us to write blocks to a specific data register, based upon the | |
781 | * condition that a status register can be successfully masked with a status | |
782 | * qualifier. If this condition is not initially met, the write will wait | |
783 | * up until a maximum amount of time has elapsed, as specified by timeout. | |
784 | * The read will start when the condition is met, otherwise the command aborts. | |
785 | * | |
786 | * The qualifier defined here is not the value that is masked, it defines | |
787 | * conditions for the write to take place. The actual masked qualifier (and | |
788 | * other related details) are defined beforehand with _set_shuttle_features(). | |
789 | */ | |
790 | static int usbat_write_blocks(struct us_data *us, | |
4776e99e | 791 | void* buffer, |
141804d4 PC |
792 | int len, |
793 | int use_sg) | |
1da177e4 LT |
794 | { |
795 | int result; | |
796 | unsigned char *command = us->iobuf; | |
797 | ||
798 | command[0] = 0x40; | |
799 | command[1] = USBAT_ATA | USBAT_CMD_COND_WRITE_BLOCK; | |
800 | command[2] = USBAT_ATA_DATA; | |
801 | command[3] = USBAT_ATA_STATUS; | |
b7b1e655 | 802 | command[4] = 0xFD; /* Timeout (ms) */ |
1da177e4 LT |
803 | command[5] = USBAT_QUAL_FCQ; |
804 | command[6] = LSB_of(len); | |
805 | command[7] = MSB_of(len); | |
806 | ||
b7b1e655 | 807 | /* Multiple block write setup command */ |
1da177e4 LT |
808 | result = usbat_execute_command(us, command, 8); |
809 | if (result != USB_STOR_XFER_GOOD) | |
810 | return USB_STOR_TRANSPORT_FAILED; | |
811 | ||
b7b1e655 | 812 | /* Write the data */ |
141804d4 | 813 | result = usbat_bulk_write(us, buffer, len, use_sg); |
1da177e4 LT |
814 | if (result != USB_STOR_XFER_GOOD) |
815 | return USB_STOR_TRANSPORT_FAILED; | |
816 | ||
817 | return USB_STOR_TRANSPORT_GOOD; | |
818 | } | |
819 | ||
820 | /* | |
821 | * Read the User IO register | |
822 | */ | |
823 | static int usbat_read_user_io(struct us_data *us, unsigned char *data_flags) | |
824 | { | |
825 | int result; | |
826 | ||
827 | result = usb_stor_ctrl_transfer(us, | |
828 | us->recv_ctrl_pipe, | |
829 | USBAT_CMD_UIO, | |
830 | 0xC0, | |
831 | 0, | |
832 | 0, | |
833 | data_flags, | |
834 | USBAT_UIO_READ); | |
835 | ||
191648d0 | 836 | usb_stor_dbg(us, "UIO register reads %02X\n", *data_flags); |
1da177e4 LT |
837 | |
838 | return result; | |
839 | } | |
840 | ||
841 | /* | |
842 | * Write to the User IO register | |
843 | */ | |
844 | static int usbat_write_user_io(struct us_data *us, | |
845 | unsigned char enable_flags, | |
846 | unsigned char data_flags) | |
847 | { | |
848 | return usb_stor_ctrl_transfer(us, | |
849 | us->send_ctrl_pipe, | |
850 | USBAT_CMD_UIO, | |
851 | 0x40, | |
852 | short_pack(enable_flags, data_flags), | |
853 | 0, | |
854 | NULL, | |
855 | USBAT_UIO_WRITE); | |
856 | } | |
857 | ||
858 | /* | |
859 | * Reset the device | |
860 | * Often needed on media change. | |
861 | */ | |
862 | static int usbat_device_reset(struct us_data *us) | |
863 | { | |
864 | int rc; | |
865 | ||
b7b1e655 DD |
866 | /* |
867 | * Reset peripheral, enable peripheral control signals | |
868 | * (bring reset signal up) | |
869 | */ | |
1da177e4 LT |
870 | rc = usbat_write_user_io(us, |
871 | USBAT_UIO_DRVRST | USBAT_UIO_OE1 | USBAT_UIO_OE0, | |
872 | USBAT_UIO_EPAD | USBAT_UIO_1); | |
873 | if (rc != USB_STOR_XFER_GOOD) | |
874 | return USB_STOR_TRANSPORT_ERROR; | |
875 | ||
b7b1e655 DD |
876 | /* |
877 | * Enable peripheral control signals | |
878 | * (bring reset signal down) | |
879 | */ | |
1da177e4 LT |
880 | rc = usbat_write_user_io(us, |
881 | USBAT_UIO_OE1 | USBAT_UIO_OE0, | |
882 | USBAT_UIO_EPAD | USBAT_UIO_1); | |
883 | if (rc != USB_STOR_XFER_GOOD) | |
884 | return USB_STOR_TRANSPORT_ERROR; | |
885 | ||
886 | return USB_STOR_TRANSPORT_GOOD; | |
887 | } | |
888 | ||
889 | /* | |
890 | * Enable card detect | |
891 | */ | |
892 | static int usbat_device_enable_cdt(struct us_data *us) | |
893 | { | |
894 | int rc; | |
895 | ||
b7b1e655 | 896 | /* Enable peripheral control signals and card detect */ |
1da177e4 LT |
897 | rc = usbat_write_user_io(us, |
898 | USBAT_UIO_ACKD | USBAT_UIO_OE1 | USBAT_UIO_OE0, | |
899 | USBAT_UIO_EPAD | USBAT_UIO_1); | |
900 | if (rc != USB_STOR_XFER_GOOD) | |
901 | return USB_STOR_TRANSPORT_ERROR; | |
902 | ||
903 | return USB_STOR_TRANSPORT_GOOD; | |
904 | } | |
905 | ||
906 | /* | |
907 | * Determine if media is present. | |
908 | */ | |
191648d0 JP |
909 | static int usbat_flash_check_media_present(struct us_data *us, |
910 | unsigned char *uio) | |
1da177e4 LT |
911 | { |
912 | if (*uio & USBAT_UIO_UI0) { | |
191648d0 | 913 | usb_stor_dbg(us, "no media detected\n"); |
1da177e4 LT |
914 | return USBAT_FLASH_MEDIA_NONE; |
915 | } | |
916 | ||
917 | return USBAT_FLASH_MEDIA_CF; | |
918 | } | |
919 | ||
920 | /* | |
921 | * Determine if media has changed since last operation | |
922 | */ | |
191648d0 JP |
923 | static int usbat_flash_check_media_changed(struct us_data *us, |
924 | unsigned char *uio) | |
1da177e4 LT |
925 | { |
926 | if (*uio & USBAT_UIO_0) { | |
191648d0 | 927 | usb_stor_dbg(us, "media change detected\n"); |
1da177e4 LT |
928 | return USBAT_FLASH_MEDIA_CHANGED; |
929 | } | |
930 | ||
931 | return USBAT_FLASH_MEDIA_SAME; | |
932 | } | |
933 | ||
934 | /* | |
935 | * Check for media change / no media and handle the situation appropriately | |
936 | */ | |
937 | static int usbat_flash_check_media(struct us_data *us, | |
938 | struct usbat_info *info) | |
939 | { | |
940 | int rc; | |
941 | unsigned char *uio = us->iobuf; | |
942 | ||
943 | rc = usbat_read_user_io(us, uio); | |
944 | if (rc != USB_STOR_XFER_GOOD) | |
945 | return USB_STOR_TRANSPORT_ERROR; | |
946 | ||
b7b1e655 | 947 | /* Check for media existence */ |
191648d0 | 948 | rc = usbat_flash_check_media_present(us, uio); |
1da177e4 LT |
949 | if (rc == USBAT_FLASH_MEDIA_NONE) { |
950 | info->sense_key = 0x02; | |
951 | info->sense_asc = 0x3A; | |
952 | info->sense_ascq = 0x00; | |
953 | return USB_STOR_TRANSPORT_FAILED; | |
954 | } | |
955 | ||
b7b1e655 | 956 | /* Check for media change */ |
191648d0 | 957 | rc = usbat_flash_check_media_changed(us, uio); |
1da177e4 LT |
958 | if (rc == USBAT_FLASH_MEDIA_CHANGED) { |
959 | ||
b7b1e655 | 960 | /* Reset and re-enable card detect */ |
1da177e4 LT |
961 | rc = usbat_device_reset(us); |
962 | if (rc != USB_STOR_TRANSPORT_GOOD) | |
963 | return rc; | |
964 | rc = usbat_device_enable_cdt(us); | |
965 | if (rc != USB_STOR_TRANSPORT_GOOD) | |
966 | return rc; | |
967 | ||
968 | msleep(50); | |
969 | ||
970 | rc = usbat_read_user_io(us, uio); | |
971 | if (rc != USB_STOR_XFER_GOOD) | |
972 | return USB_STOR_TRANSPORT_ERROR; | |
973 | ||
974 | info->sense_key = UNIT_ATTENTION; | |
975 | info->sense_asc = 0x28; | |
976 | info->sense_ascq = 0x00; | |
977 | return USB_STOR_TRANSPORT_FAILED; | |
978 | } | |
979 | ||
980 | return USB_STOR_TRANSPORT_GOOD; | |
981 | } | |
982 | ||
983 | /* | |
984 | * Determine whether we are controlling a flash-based reader/writer, | |
985 | * or a HP8200-based CD drive. | |
986 | * Sets transport functions as appropriate. | |
987 | */ | |
988 | static int usbat_identify_device(struct us_data *us, | |
989 | struct usbat_info *info) | |
990 | { | |
991 | int rc; | |
992 | unsigned char status; | |
993 | ||
994 | if (!us || !info) | |
995 | return USB_STOR_TRANSPORT_ERROR; | |
996 | ||
997 | rc = usbat_device_reset(us); | |
998 | if (rc != USB_STOR_TRANSPORT_GOOD) | |
999 | return rc; | |
8845add3 | 1000 | msleep(500); |
1da177e4 LT |
1001 | |
1002 | /* | |
68a6457e DD |
1003 | * In attempt to distinguish between HP CDRW's and Flash readers, we now |
1004 | * execute the IDENTIFY PACKET DEVICE command. On ATA devices (i.e. flash | |
1005 | * readers), this command should fail with error. On ATAPI devices (i.e. | |
1006 | * CDROM drives), it should succeed. | |
1da177e4 | 1007 | */ |
68a6457e DD |
1008 | rc = usbat_write(us, USBAT_ATA, USBAT_ATA_CMD, 0xA1); |
1009 | if (rc != USB_STOR_XFER_GOOD) | |
1010 | return USB_STOR_TRANSPORT_ERROR; | |
1da177e4 | 1011 | |
68a6457e DD |
1012 | rc = usbat_get_status(us, &status); |
1013 | if (rc != USB_STOR_XFER_GOOD) | |
1014 | return USB_STOR_TRANSPORT_ERROR; | |
1da177e4 | 1015 | |
b7b1e655 | 1016 | /* Check for error bit, or if the command 'fell through' */ |
a8798533 | 1017 | if (status == 0xA1 || !(status & 0x01)) { |
b7b1e655 | 1018 | /* Device is HP 8200 */ |
191648d0 | 1019 | usb_stor_dbg(us, "Detected HP8200 CDRW\n"); |
1da177e4 | 1020 | info->devicetype = USBAT_DEV_HP8200; |
a8798533 | 1021 | } else { |
b7b1e655 | 1022 | /* Device is a CompactFlash reader/writer */ |
191648d0 | 1023 | usb_stor_dbg(us, "Detected Flash reader/writer\n"); |
a8798533 | 1024 | info->devicetype = USBAT_DEV_FLASH; |
1da177e4 LT |
1025 | } |
1026 | ||
1027 | return USB_STOR_TRANSPORT_GOOD; | |
1028 | } | |
1029 | ||
1030 | /* | |
1031 | * Set the transport function based on the device type | |
1032 | */ | |
1033 | static int usbat_set_transport(struct us_data *us, | |
bdcfd9e3 PC |
1034 | struct usbat_info *info, |
1035 | int devicetype) | |
1da177e4 | 1036 | { |
1da177e4 | 1037 | |
bdcfd9e3 PC |
1038 | if (!info->devicetype) |
1039 | info->devicetype = devicetype; | |
1da177e4 | 1040 | |
bdcfd9e3 PC |
1041 | if (!info->devicetype) |
1042 | usbat_identify_device(us, info); | |
1043 | ||
1044 | switch (info->devicetype) { | |
1045 | default: | |
1046 | return USB_STOR_TRANSPORT_ERROR; | |
1047 | ||
1048 | case USBAT_DEV_HP8200: | |
1da177e4 | 1049 | us->transport = usbat_hp8200e_transport; |
bdcfd9e3 PC |
1050 | break; |
1051 | ||
1052 | case USBAT_DEV_FLASH: | |
1da177e4 | 1053 | us->transport = usbat_flash_transport; |
bdcfd9e3 PC |
1054 | break; |
1055 | } | |
1da177e4 LT |
1056 | |
1057 | return 0; | |
1058 | } | |
1059 | ||
1060 | /* | |
1061 | * Read the media capacity | |
1062 | */ | |
1063 | static int usbat_flash_get_sector_count(struct us_data *us, | |
1064 | struct usbat_info *info) | |
1065 | { | |
1066 | unsigned char registers[3] = { | |
1067 | USBAT_ATA_SECCNT, | |
1068 | USBAT_ATA_DEVICE, | |
1069 | USBAT_ATA_CMD, | |
1070 | }; | |
1071 | unsigned char command[3] = { 0x01, 0xA0, 0xEC }; | |
1072 | unsigned char *reply; | |
1073 | unsigned char status; | |
1074 | int rc; | |
1075 | ||
1076 | if (!us || !info) | |
1077 | return USB_STOR_TRANSPORT_ERROR; | |
1078 | ||
1079 | reply = kmalloc(512, GFP_NOIO); | |
1080 | if (!reply) | |
1081 | return USB_STOR_TRANSPORT_ERROR; | |
1082 | ||
b7b1e655 | 1083 | /* ATA command : IDENTIFY DEVICE */ |
1da177e4 LT |
1084 | rc = usbat_multiple_write(us, registers, command, 3); |
1085 | if (rc != USB_STOR_XFER_GOOD) { | |
191648d0 | 1086 | usb_stor_dbg(us, "Gah! identify_device failed\n"); |
1da177e4 LT |
1087 | rc = USB_STOR_TRANSPORT_ERROR; |
1088 | goto leave; | |
1089 | } | |
1090 | ||
b7b1e655 | 1091 | /* Read device status */ |
1da177e4 LT |
1092 | if (usbat_get_status(us, &status) != USB_STOR_XFER_GOOD) { |
1093 | rc = USB_STOR_TRANSPORT_ERROR; | |
1094 | goto leave; | |
1095 | } | |
1096 | ||
1097 | msleep(100); | |
1098 | ||
b7b1e655 | 1099 | /* Read the device identification data */ |
141804d4 | 1100 | rc = usbat_read_block(us, reply, 512, 0); |
1da177e4 LT |
1101 | if (rc != USB_STOR_TRANSPORT_GOOD) |
1102 | goto leave; | |
1103 | ||
1104 | info->sectors = ((u32)(reply[117]) << 24) | | |
1105 | ((u32)(reply[116]) << 16) | | |
1106 | ((u32)(reply[115]) << 8) | | |
1107 | ((u32)(reply[114]) ); | |
1108 | ||
1109 | rc = USB_STOR_TRANSPORT_GOOD; | |
1110 | ||
1111 | leave: | |
1112 | kfree(reply); | |
1113 | return rc; | |
1114 | } | |
1115 | ||
1116 | /* | |
1117 | * Read data from device | |
1118 | */ | |
1119 | static int usbat_flash_read_data(struct us_data *us, | |
1120 | struct usbat_info *info, | |
1121 | u32 sector, | |
1122 | u32 sectors) | |
1123 | { | |
1124 | unsigned char registers[7] = { | |
1125 | USBAT_ATA_FEATURES, | |
1126 | USBAT_ATA_SECCNT, | |
1127 | USBAT_ATA_SECNUM, | |
1128 | USBAT_ATA_LBA_ME, | |
1129 | USBAT_ATA_LBA_HI, | |
1130 | USBAT_ATA_DEVICE, | |
1131 | USBAT_ATA_STATUS, | |
1132 | }; | |
1133 | unsigned char command[7]; | |
1134 | unsigned char *buffer; | |
1135 | unsigned char thistime; | |
1136 | unsigned int totallen, alloclen; | |
1137 | int len, result; | |
1f6f31a0 JA |
1138 | unsigned int sg_offset = 0; |
1139 | struct scatterlist *sg = NULL; | |
1da177e4 LT |
1140 | |
1141 | result = usbat_flash_check_media(us, info); | |
1142 | if (result != USB_STOR_TRANSPORT_GOOD) | |
1143 | return result; | |
1144 | ||
b7b1e655 DD |
1145 | /* |
1146 | * we're working in LBA mode. according to the ATA spec, | |
1147 | * we can support up to 28-bit addressing. I don't know if Jumpshot | |
1148 | * supports beyond 24-bit addressing. It's kind of hard to test | |
1149 | * since it requires > 8GB CF card. | |
1150 | */ | |
1da177e4 LT |
1151 | |
1152 | if (sector > 0x0FFFFFFF) | |
1153 | return USB_STOR_TRANSPORT_ERROR; | |
1154 | ||
1155 | totallen = sectors * info->ssize; | |
1156 | ||
b7b1e655 DD |
1157 | /* |
1158 | * Since we don't read more than 64 KB at a time, we have to create | |
1159 | * a bounce buffer and move the data a piece at a time between the | |
1160 | * bounce buffer and the actual transfer buffer. | |
1161 | */ | |
1da177e4 LT |
1162 | |
1163 | alloclen = min(totallen, 65536u); | |
1164 | buffer = kmalloc(alloclen, GFP_NOIO); | |
1165 | if (buffer == NULL) | |
1166 | return USB_STOR_TRANSPORT_ERROR; | |
1167 | ||
1168 | do { | |
b7b1e655 DD |
1169 | /* |
1170 | * loop, never allocate or transfer more than 64k at once | |
1171 | * (min(128k, 255*info->ssize) is the real limit) | |
1172 | */ | |
1da177e4 LT |
1173 | len = min(totallen, alloclen); |
1174 | thistime = (len / info->ssize) & 0xff; | |
1175 | ||
b7b1e655 DD |
1176 | /* ATA command 0x20 (READ SECTORS) */ |
1177 | usbat_pack_ata_sector_cmd(command, thistime, sector, 0x20); | |
1da177e4 | 1178 | |
b7b1e655 | 1179 | /* Write/execute ATA read command */ |
1da177e4 LT |
1180 | result = usbat_multiple_write(us, registers, command, 7); |
1181 | if (result != USB_STOR_TRANSPORT_GOOD) | |
1182 | goto leave; | |
1183 | ||
b7b1e655 | 1184 | /* Read the data we just requested */ |
141804d4 | 1185 | result = usbat_read_blocks(us, buffer, len, 0); |
1da177e4 LT |
1186 | if (result != USB_STOR_TRANSPORT_GOOD) |
1187 | goto leave; | |
1188 | ||
191648d0 | 1189 | usb_stor_dbg(us, "%d bytes\n", len); |
1da177e4 | 1190 | |
b7b1e655 | 1191 | /* Store the data in the transfer buffer */ |
1da177e4 | 1192 | usb_stor_access_xfer_buf(buffer, len, us->srb, |
1f6f31a0 | 1193 | &sg, &sg_offset, TO_XFER_BUF); |
1da177e4 LT |
1194 | |
1195 | sector += thistime; | |
1196 | totallen -= len; | |
1197 | } while (totallen > 0); | |
1198 | ||
1199 | kfree(buffer); | |
1200 | return USB_STOR_TRANSPORT_GOOD; | |
1201 | ||
1202 | leave: | |
1203 | kfree(buffer); | |
1204 | return USB_STOR_TRANSPORT_ERROR; | |
1205 | } | |
1206 | ||
1207 | /* | |
1208 | * Write data to device | |
1209 | */ | |
1210 | static int usbat_flash_write_data(struct us_data *us, | |
1211 | struct usbat_info *info, | |
1212 | u32 sector, | |
1213 | u32 sectors) | |
1214 | { | |
1215 | unsigned char registers[7] = { | |
1216 | USBAT_ATA_FEATURES, | |
1217 | USBAT_ATA_SECCNT, | |
1218 | USBAT_ATA_SECNUM, | |
1219 | USBAT_ATA_LBA_ME, | |
1220 | USBAT_ATA_LBA_HI, | |
1221 | USBAT_ATA_DEVICE, | |
1222 | USBAT_ATA_STATUS, | |
1223 | }; | |
1224 | unsigned char command[7]; | |
1225 | unsigned char *buffer; | |
1226 | unsigned char thistime; | |
1227 | unsigned int totallen, alloclen; | |
1228 | int len, result; | |
1f6f31a0 JA |
1229 | unsigned int sg_offset = 0; |
1230 | struct scatterlist *sg = NULL; | |
1da177e4 LT |
1231 | |
1232 | result = usbat_flash_check_media(us, info); | |
1233 | if (result != USB_STOR_TRANSPORT_GOOD) | |
1234 | return result; | |
1235 | ||
b7b1e655 DD |
1236 | /* |
1237 | * we're working in LBA mode. according to the ATA spec, | |
1238 | * we can support up to 28-bit addressing. I don't know if the device | |
1239 | * supports beyond 24-bit addressing. It's kind of hard to test | |
1240 | * since it requires > 8GB media. | |
1241 | */ | |
1da177e4 LT |
1242 | |
1243 | if (sector > 0x0FFFFFFF) | |
1244 | return USB_STOR_TRANSPORT_ERROR; | |
1245 | ||
1246 | totallen = sectors * info->ssize; | |
1247 | ||
b7b1e655 DD |
1248 | /* |
1249 | * Since we don't write more than 64 KB at a time, we have to create | |
1250 | * a bounce buffer and move the data a piece at a time between the | |
1251 | * bounce buffer and the actual transfer buffer. | |
1252 | */ | |
1da177e4 LT |
1253 | |
1254 | alloclen = min(totallen, 65536u); | |
1255 | buffer = kmalloc(alloclen, GFP_NOIO); | |
1256 | if (buffer == NULL) | |
1257 | return USB_STOR_TRANSPORT_ERROR; | |
1258 | ||
1259 | do { | |
b7b1e655 DD |
1260 | /* |
1261 | * loop, never allocate or transfer more than 64k at once | |
1262 | * (min(128k, 255*info->ssize) is the real limit) | |
1263 | */ | |
1da177e4 LT |
1264 | len = min(totallen, alloclen); |
1265 | thistime = (len / info->ssize) & 0xff; | |
1266 | ||
b7b1e655 | 1267 | /* Get the data from the transfer buffer */ |
1da177e4 | 1268 | usb_stor_access_xfer_buf(buffer, len, us->srb, |
1f6f31a0 | 1269 | &sg, &sg_offset, FROM_XFER_BUF); |
1da177e4 | 1270 | |
b7b1e655 DD |
1271 | /* ATA command 0x30 (WRITE SECTORS) */ |
1272 | usbat_pack_ata_sector_cmd(command, thistime, sector, 0x30); | |
1da177e4 | 1273 | |
b7b1e655 | 1274 | /* Write/execute ATA write command */ |
1da177e4 LT |
1275 | result = usbat_multiple_write(us, registers, command, 7); |
1276 | if (result != USB_STOR_TRANSPORT_GOOD) | |
1277 | goto leave; | |
1278 | ||
b7b1e655 | 1279 | /* Write the data */ |
141804d4 | 1280 | result = usbat_write_blocks(us, buffer, len, 0); |
1da177e4 LT |
1281 | if (result != USB_STOR_TRANSPORT_GOOD) |
1282 | goto leave; | |
1283 | ||
1284 | sector += thistime; | |
1285 | totallen -= len; | |
1286 | } while (totallen > 0); | |
1287 | ||
1288 | kfree(buffer); | |
1289 | return result; | |
1290 | ||
1291 | leave: | |
1292 | kfree(buffer); | |
1293 | return USB_STOR_TRANSPORT_ERROR; | |
1294 | } | |
1295 | ||
1296 | /* | |
1297 | * Squeeze a potentially huge (> 65535 byte) read10 command into | |
1298 | * a little ( <= 65535 byte) ATAPI pipe | |
1299 | */ | |
1300 | static int usbat_hp8200e_handle_read10(struct us_data *us, | |
1301 | unsigned char *registers, | |
1302 | unsigned char *data, | |
1303 | struct scsi_cmnd *srb) | |
1304 | { | |
1305 | int result = USB_STOR_TRANSPORT_GOOD; | |
1306 | unsigned char *buffer; | |
1307 | unsigned int len; | |
1308 | unsigned int sector; | |
1da177e4 | 1309 | unsigned int sg_offset = 0; |
1f6f31a0 | 1310 | struct scatterlist *sg = NULL; |
1da177e4 | 1311 | |
191648d0 | 1312 | usb_stor_dbg(us, "transfersize %d\n", srb->transfersize); |
1da177e4 | 1313 | |
4776e99e | 1314 | if (scsi_bufflen(srb) < 0x10000) { |
1da177e4 LT |
1315 | |
1316 | result = usbat_hp8200e_rw_block_test(us, USBAT_ATA, | |
1317 | registers, data, 19, | |
1318 | USBAT_ATA_DATA, USBAT_ATA_STATUS, 0xFD, | |
1319 | (USBAT_QUAL_FCQ | USBAT_QUAL_ALQ), | |
1320 | DMA_FROM_DEVICE, | |
4776e99e BH |
1321 | scsi_sglist(srb), |
1322 | scsi_bufflen(srb), scsi_sg_count(srb), 1); | |
1da177e4 LT |
1323 | |
1324 | return result; | |
1325 | } | |
1326 | ||
1327 | /* | |
1328 | * Since we're requesting more data than we can handle in | |
1329 | * a single read command (max is 64k-1), we will perform | |
1330 | * multiple reads, but each read must be in multiples of | |
1331 | * a sector. Luckily the sector size is in srb->transfersize | |
1332 | * (see linux/drivers/scsi/sr.c). | |
1333 | */ | |
1334 | ||
1335 | if (data[7+0] == GPCMD_READ_CD) { | |
1336 | len = short_pack(data[7+9], data[7+8]); | |
1337 | len <<= 16; | |
1338 | len |= data[7+7]; | |
191648d0 | 1339 | usb_stor_dbg(us, "GPCMD_READ_CD: len %d\n", len); |
4776e99e | 1340 | srb->transfersize = scsi_bufflen(srb)/len; |
1da177e4 LT |
1341 | } |
1342 | ||
1343 | if (!srb->transfersize) { | |
1344 | srb->transfersize = 2048; /* A guess */ | |
191648d0 JP |
1345 | usb_stor_dbg(us, "transfersize 0, forcing %d\n", |
1346 | srb->transfersize); | |
1da177e4 LT |
1347 | } |
1348 | ||
b7b1e655 DD |
1349 | /* |
1350 | * Since we only read in one block at a time, we have to create | |
1351 | * a bounce buffer and move the data a piece at a time between the | |
1352 | * bounce buffer and the actual transfer buffer. | |
1353 | */ | |
1da177e4 LT |
1354 | |
1355 | len = (65535/srb->transfersize) * srb->transfersize; | |
191648d0 | 1356 | usb_stor_dbg(us, "Max read is %d bytes\n", len); |
4776e99e | 1357 | len = min(len, scsi_bufflen(srb)); |
1da177e4 | 1358 | buffer = kmalloc(len, GFP_NOIO); |
b7b1e655 | 1359 | if (buffer == NULL) /* bloody hell! */ |
1da177e4 LT |
1360 | return USB_STOR_TRANSPORT_FAILED; |
1361 | sector = short_pack(data[7+3], data[7+2]); | |
1362 | sector <<= 16; | |
1363 | sector |= short_pack(data[7+5], data[7+4]); | |
1364 | transferred = 0; | |
1365 | ||
4776e99e | 1366 | while (transferred != scsi_bufflen(srb)) { |
1da177e4 | 1367 | |
4776e99e BH |
1368 | if (len > scsi_bufflen(srb) - transferred) |
1369 | len = scsi_bufflen(srb) - transferred; | |
1da177e4 | 1370 | |
b7b1e655 DD |
1371 | data[3] = len&0xFF; /* (cylL) = expected length (L) */ |
1372 | data[4] = (len>>8)&0xFF; /* (cylH) = expected length (H) */ | |
1da177e4 | 1373 | |
b7b1e655 | 1374 | /* Fix up the SCSI command sector and num sectors */ |
1da177e4 | 1375 | |
b7b1e655 | 1376 | data[7+2] = MSB_of(sector>>16); /* SCSI command sector */ |
1da177e4 LT |
1377 | data[7+3] = LSB_of(sector>>16); |
1378 | data[7+4] = MSB_of(sector&0xFFFF); | |
1379 | data[7+5] = LSB_of(sector&0xFFFF); | |
1380 | if (data[7+0] == GPCMD_READ_CD) | |
1381 | data[7+6] = 0; | |
b7b1e655 DD |
1382 | data[7+7] = MSB_of(len / srb->transfersize); /* SCSI command */ |
1383 | data[7+8] = LSB_of(len / srb->transfersize); /* num sectors */ | |
1da177e4 LT |
1384 | |
1385 | result = usbat_hp8200e_rw_block_test(us, USBAT_ATA, | |
1386 | registers, data, 19, | |
1387 | USBAT_ATA_DATA, USBAT_ATA_STATUS, 0xFD, | |
1388 | (USBAT_QUAL_FCQ | USBAT_QUAL_ALQ), | |
1389 | DMA_FROM_DEVICE, | |
1390 | buffer, | |
1391 | len, 0, 1); | |
1392 | ||
1393 | if (result != USB_STOR_TRANSPORT_GOOD) | |
1394 | break; | |
1395 | ||
b7b1e655 | 1396 | /* Store the data in the transfer buffer */ |
1da177e4 | 1397 | usb_stor_access_xfer_buf(buffer, len, srb, |
1f6f31a0 | 1398 | &sg, &sg_offset, TO_XFER_BUF); |
1da177e4 | 1399 | |
b7b1e655 | 1400 | /* Update the amount transferred and the sector number */ |
1da177e4 LT |
1401 | |
1402 | transferred += len; | |
1403 | sector += len / srb->transfersize; | |
1404 | ||
4776e99e | 1405 | } /* while transferred != scsi_bufflen(srb) */ |
1da177e4 LT |
1406 | |
1407 | kfree(buffer); | |
1408 | return result; | |
1409 | } | |
1410 | ||
1411 | static int usbat_select_and_test_registers(struct us_data *us) | |
1412 | { | |
1413 | int selector; | |
1414 | unsigned char *status = us->iobuf; | |
1da177e4 | 1415 | |
b7b1e655 | 1416 | /* try device = master, then device = slave. */ |
68a6457e DD |
1417 | for (selector = 0xA0; selector <= 0xB0; selector += 0x10) { |
1418 | if (usbat_write(us, USBAT_ATA, USBAT_ATA_DEVICE, selector) != | |
1da177e4 LT |
1419 | USB_STOR_XFER_GOOD) |
1420 | return USB_STOR_TRANSPORT_ERROR; | |
1421 | ||
1422 | if (usbat_read(us, USBAT_ATA, USBAT_ATA_STATUS, status) != | |
1423 | USB_STOR_XFER_GOOD) | |
1424 | return USB_STOR_TRANSPORT_ERROR; | |
1425 | ||
1426 | if (usbat_read(us, USBAT_ATA, USBAT_ATA_DEVICE, status) != | |
1427 | USB_STOR_XFER_GOOD) | |
1428 | return USB_STOR_TRANSPORT_ERROR; | |
1429 | ||
1430 | if (usbat_read(us, USBAT_ATA, USBAT_ATA_LBA_ME, status) != | |
1431 | USB_STOR_XFER_GOOD) | |
1432 | return USB_STOR_TRANSPORT_ERROR; | |
1433 | ||
1434 | if (usbat_read(us, USBAT_ATA, USBAT_ATA_LBA_HI, status) != | |
1435 | USB_STOR_XFER_GOOD) | |
1436 | return USB_STOR_TRANSPORT_ERROR; | |
1437 | ||
1438 | if (usbat_write(us, USBAT_ATA, USBAT_ATA_LBA_ME, 0x55) != | |
1439 | USB_STOR_XFER_GOOD) | |
1440 | return USB_STOR_TRANSPORT_ERROR; | |
1441 | ||
1442 | if (usbat_write(us, USBAT_ATA, USBAT_ATA_LBA_HI, 0xAA) != | |
1443 | USB_STOR_XFER_GOOD) | |
1444 | return USB_STOR_TRANSPORT_ERROR; | |
1445 | ||
1446 | if (usbat_read(us, USBAT_ATA, USBAT_ATA_LBA_ME, status) != | |
1447 | USB_STOR_XFER_GOOD) | |
1448 | return USB_STOR_TRANSPORT_ERROR; | |
1449 | ||
1450 | if (usbat_read(us, USBAT_ATA, USBAT_ATA_LBA_ME, status) != | |
1451 | USB_STOR_XFER_GOOD) | |
1452 | return USB_STOR_TRANSPORT_ERROR; | |
1453 | } | |
1454 | ||
1455 | return USB_STOR_TRANSPORT_GOOD; | |
1456 | } | |
1457 | ||
1458 | /* | |
1459 | * Initialize the USBAT processor and the storage device | |
1460 | */ | |
bdcfd9e3 | 1461 | static int init_usbat(struct us_data *us, int devicetype) |
1da177e4 LT |
1462 | { |
1463 | int rc; | |
1464 | struct usbat_info *info; | |
1465 | unsigned char subcountH = USBAT_ATA_LBA_HI; | |
1466 | unsigned char subcountL = USBAT_ATA_LBA_ME; | |
1467 | unsigned char *status = us->iobuf; | |
1468 | ||
887c2560 | 1469 | us->extra = kzalloc(sizeof(struct usbat_info), GFP_NOIO); |
191648d0 | 1470 | if (!us->extra) |
1da177e4 | 1471 | return 1; |
191648d0 | 1472 | |
1da177e4 LT |
1473 | info = (struct usbat_info *) (us->extra); |
1474 | ||
b7b1e655 | 1475 | /* Enable peripheral control signals */ |
1da177e4 LT |
1476 | rc = usbat_write_user_io(us, |
1477 | USBAT_UIO_OE1 | USBAT_UIO_OE0, | |
1478 | USBAT_UIO_EPAD | USBAT_UIO_1); | |
1479 | if (rc != USB_STOR_XFER_GOOD) | |
1480 | return USB_STOR_TRANSPORT_ERROR; | |
1481 | ||
191648d0 | 1482 | usb_stor_dbg(us, "INIT 1\n"); |
1da177e4 LT |
1483 | |
1484 | msleep(2000); | |
1485 | ||
1486 | rc = usbat_read_user_io(us, status); | |
1487 | if (rc != USB_STOR_TRANSPORT_GOOD) | |
1488 | return rc; | |
1489 | ||
191648d0 | 1490 | usb_stor_dbg(us, "INIT 2\n"); |
1da177e4 LT |
1491 | |
1492 | rc = usbat_read_user_io(us, status); | |
1493 | if (rc != USB_STOR_XFER_GOOD) | |
1494 | return USB_STOR_TRANSPORT_ERROR; | |
1495 | ||
1496 | rc = usbat_read_user_io(us, status); | |
1497 | if (rc != USB_STOR_XFER_GOOD) | |
1498 | return USB_STOR_TRANSPORT_ERROR; | |
1499 | ||
191648d0 | 1500 | usb_stor_dbg(us, "INIT 3\n"); |
1da177e4 | 1501 | |
1da177e4 LT |
1502 | rc = usbat_select_and_test_registers(us); |
1503 | if (rc != USB_STOR_TRANSPORT_GOOD) | |
1504 | return rc; | |
1505 | ||
191648d0 | 1506 | usb_stor_dbg(us, "INIT 4\n"); |
1da177e4 LT |
1507 | |
1508 | rc = usbat_read_user_io(us, status); | |
1509 | if (rc != USB_STOR_XFER_GOOD) | |
1510 | return USB_STOR_TRANSPORT_ERROR; | |
1511 | ||
191648d0 | 1512 | usb_stor_dbg(us, "INIT 5\n"); |
1da177e4 | 1513 | |
b7b1e655 | 1514 | /* Enable peripheral control signals and card detect */ |
1da177e4 LT |
1515 | rc = usbat_device_enable_cdt(us); |
1516 | if (rc != USB_STOR_TRANSPORT_GOOD) | |
1517 | return rc; | |
1518 | ||
191648d0 | 1519 | usb_stor_dbg(us, "INIT 6\n"); |
1da177e4 LT |
1520 | |
1521 | rc = usbat_read_user_io(us, status); | |
1522 | if (rc != USB_STOR_XFER_GOOD) | |
1523 | return USB_STOR_TRANSPORT_ERROR; | |
1524 | ||
191648d0 | 1525 | usb_stor_dbg(us, "INIT 7\n"); |
1da177e4 LT |
1526 | |
1527 | msleep(1400); | |
1528 | ||
1529 | rc = usbat_read_user_io(us, status); | |
1530 | if (rc != USB_STOR_XFER_GOOD) | |
1531 | return USB_STOR_TRANSPORT_ERROR; | |
1532 | ||
191648d0 | 1533 | usb_stor_dbg(us, "INIT 8\n"); |
1da177e4 LT |
1534 | |
1535 | rc = usbat_select_and_test_registers(us); | |
1536 | if (rc != USB_STOR_TRANSPORT_GOOD) | |
1537 | return rc; | |
1538 | ||
191648d0 | 1539 | usb_stor_dbg(us, "INIT 9\n"); |
68a6457e | 1540 | |
b7b1e655 | 1541 | /* At this point, we need to detect which device we are using */ |
bdcfd9e3 | 1542 | if (usbat_set_transport(us, info, devicetype)) |
68a6457e DD |
1543 | return USB_STOR_TRANSPORT_ERROR; |
1544 | ||
191648d0 | 1545 | usb_stor_dbg(us, "INIT 10\n"); |
1da177e4 LT |
1546 | |
1547 | if (usbat_get_device_type(us) == USBAT_DEV_FLASH) { | |
1548 | subcountH = 0x02; | |
1549 | subcountL = 0x00; | |
1550 | } | |
1551 | rc = usbat_set_shuttle_features(us, (USBAT_FEAT_ETEN | USBAT_FEAT_ET2 | USBAT_FEAT_ET1), | |
1552 | 0x00, 0x88, 0x08, subcountH, subcountL); | |
1553 | if (rc != USB_STOR_XFER_GOOD) | |
1554 | return USB_STOR_TRANSPORT_ERROR; | |
1555 | ||
191648d0 | 1556 | usb_stor_dbg(us, "INIT 11\n"); |
1da177e4 LT |
1557 | |
1558 | return USB_STOR_TRANSPORT_GOOD; | |
1559 | } | |
1560 | ||
1561 | /* | |
1562 | * Transport for the HP 8200e | |
1563 | */ | |
1564 | static int usbat_hp8200e_transport(struct scsi_cmnd *srb, struct us_data *us) | |
1565 | { | |
1566 | int result; | |
1567 | unsigned char *status = us->iobuf; | |
1568 | unsigned char registers[32]; | |
1569 | unsigned char data[32]; | |
1570 | unsigned int len; | |
1571 | int i; | |
1da177e4 | 1572 | |
4776e99e | 1573 | len = scsi_bufflen(srb); |
1da177e4 | 1574 | |
f0183a33 FB |
1575 | /* |
1576 | * Send A0 (ATA PACKET COMMAND). | |
1577 | * Note: I guess we're never going to get any of the ATA | |
1578 | * commands... just ATA Packet Commands. | |
1da177e4 LT |
1579 | */ |
1580 | ||
1581 | registers[0] = USBAT_ATA_FEATURES; | |
1582 | registers[1] = USBAT_ATA_SECCNT; | |
1583 | registers[2] = USBAT_ATA_SECNUM; | |
1584 | registers[3] = USBAT_ATA_LBA_ME; | |
1585 | registers[4] = USBAT_ATA_LBA_HI; | |
1586 | registers[5] = USBAT_ATA_DEVICE; | |
1587 | registers[6] = USBAT_ATA_CMD; | |
1588 | data[0] = 0x00; | |
1589 | data[1] = 0x00; | |
1590 | data[2] = 0x00; | |
b7b1e655 DD |
1591 | data[3] = len&0xFF; /* (cylL) = expected length (L) */ |
1592 | data[4] = (len>>8)&0xFF; /* (cylH) = expected length (H) */ | |
1593 | data[5] = 0xB0; /* (device sel) = slave */ | |
1594 | data[6] = 0xA0; /* (command) = ATA PACKET COMMAND */ | |
1da177e4 LT |
1595 | |
1596 | for (i=7; i<19; i++) { | |
1597 | registers[i] = 0x10; | |
1598 | data[i] = (i-7 >= srb->cmd_len) ? 0 : srb->cmnd[i-7]; | |
1599 | } | |
1600 | ||
1601 | result = usbat_get_status(us, status); | |
191648d0 | 1602 | usb_stor_dbg(us, "Status = %02X\n", *status); |
1da177e4 LT |
1603 | if (result != USB_STOR_XFER_GOOD) |
1604 | return USB_STOR_TRANSPORT_ERROR; | |
1605 | if (srb->cmnd[0] == TEST_UNIT_READY) | |
1606 | transferred = 0; | |
1607 | ||
1608 | if (srb->sc_data_direction == DMA_TO_DEVICE) { | |
1609 | ||
1610 | result = usbat_hp8200e_rw_block_test(us, USBAT_ATA, | |
1611 | registers, data, 19, | |
1612 | USBAT_ATA_DATA, USBAT_ATA_STATUS, 0xFD, | |
1613 | (USBAT_QUAL_FCQ | USBAT_QUAL_ALQ), | |
1614 | DMA_TO_DEVICE, | |
4776e99e BH |
1615 | scsi_sglist(srb), |
1616 | len, scsi_sg_count(srb), 10); | |
1da177e4 LT |
1617 | |
1618 | if (result == USB_STOR_TRANSPORT_GOOD) { | |
1619 | transferred += len; | |
191648d0 | 1620 | usb_stor_dbg(us, "Wrote %08X bytes\n", transferred); |
1da177e4 LT |
1621 | } |
1622 | ||
1623 | return result; | |
1624 | ||
1625 | } else if (srb->cmnd[0] == READ_10 || | |
1626 | srb->cmnd[0] == GPCMD_READ_CD) { | |
1627 | ||
1628 | return usbat_hp8200e_handle_read10(us, registers, data, srb); | |
1629 | ||
1630 | } | |
1631 | ||
1632 | if (len > 0xFFFF) { | |
191648d0 JP |
1633 | usb_stor_dbg(us, "Error: len = %08X... what do I do now?\n", |
1634 | len); | |
1da177e4 LT |
1635 | return USB_STOR_TRANSPORT_ERROR; |
1636 | } | |
1637 | ||
5d3034ab RK |
1638 | result = usbat_multiple_write(us, registers, data, 7); |
1639 | ||
1640 | if (result != USB_STOR_TRANSPORT_GOOD) | |
1da177e4 | 1641 | return result; |
1da177e4 | 1642 | |
b7b1e655 DD |
1643 | /* |
1644 | * Write the 12-byte command header. | |
1645 | * | |
1646 | * If the command is BLANK then set the timer for 75 minutes. | |
1647 | * Otherwise set it for 10 minutes. | |
1648 | * | |
1649 | * NOTE: THE 8200 DOCUMENTATION STATES THAT BLANKING A CDRW | |
1650 | * AT SPEED 4 IS UNRELIABLE!!! | |
1651 | */ | |
1da177e4 | 1652 | |
5d3034ab RK |
1653 | result = usbat_write_block(us, USBAT_ATA, srb->cmnd, 12, |
1654 | srb->cmnd[0] == GPCMD_BLANK ? 75 : 10, 0); | |
1655 | ||
1656 | if (result != USB_STOR_TRANSPORT_GOOD) | |
1da177e4 | 1657 | return result; |
1da177e4 | 1658 | |
b7b1e655 | 1659 | /* If there is response data to be read in then do it here. */ |
1da177e4 LT |
1660 | |
1661 | if (len != 0 && (srb->sc_data_direction == DMA_FROM_DEVICE)) { | |
1662 | ||
b7b1e655 | 1663 | /* How many bytes to read in? Check cylL register */ |
1da177e4 LT |
1664 | |
1665 | if (usbat_read(us, USBAT_ATA, USBAT_ATA_LBA_ME, status) != | |
1666 | USB_STOR_XFER_GOOD) { | |
1667 | return USB_STOR_TRANSPORT_ERROR; | |
1668 | } | |
1669 | ||
b7b1e655 | 1670 | if (len > 0xFF) { /* need to read cylH also */ |
1da177e4 LT |
1671 | len = *status; |
1672 | if (usbat_read(us, USBAT_ATA, USBAT_ATA_LBA_HI, status) != | |
1673 | USB_STOR_XFER_GOOD) { | |
1674 | return USB_STOR_TRANSPORT_ERROR; | |
1675 | } | |
1676 | len += ((unsigned int) *status)<<8; | |
1677 | } | |
1678 | else | |
1679 | len = *status; | |
1680 | ||
1681 | ||
4776e99e BH |
1682 | result = usbat_read_block(us, scsi_sglist(srb), len, |
1683 | scsi_sg_count(srb)); | |
1da177e4 LT |
1684 | } |
1685 | ||
1686 | return result; | |
1687 | } | |
1688 | ||
1689 | /* | |
1690 | * Transport for USBAT02-based CompactFlash and similar storage devices | |
1691 | */ | |
1692 | static int usbat_flash_transport(struct scsi_cmnd * srb, struct us_data *us) | |
1693 | { | |
1694 | int rc; | |
1695 | struct usbat_info *info = (struct usbat_info *) (us->extra); | |
1696 | unsigned long block, blocks; | |
1697 | unsigned char *ptr = us->iobuf; | |
1698 | static unsigned char inquiry_response[36] = { | |
1699 | 0x00, 0x80, 0x00, 0x01, 0x1F, 0x00, 0x00, 0x00 | |
1700 | }; | |
1701 | ||
1702 | if (srb->cmnd[0] == INQUIRY) { | |
191648d0 | 1703 | usb_stor_dbg(us, "INQUIRY - Returning bogus response\n"); |
1da177e4 LT |
1704 | memcpy(ptr, inquiry_response, sizeof(inquiry_response)); |
1705 | fill_inquiry_response(us, ptr, 36); | |
1706 | return USB_STOR_TRANSPORT_GOOD; | |
1707 | } | |
1708 | ||
1709 | if (srb->cmnd[0] == READ_CAPACITY) { | |
1710 | rc = usbat_flash_check_media(us, info); | |
1711 | if (rc != USB_STOR_TRANSPORT_GOOD) | |
1712 | return rc; | |
1713 | ||
1714 | rc = usbat_flash_get_sector_count(us, info); | |
1715 | if (rc != USB_STOR_TRANSPORT_GOOD) | |
1716 | return rc; | |
1717 | ||
b7b1e655 DD |
1718 | /* hard coded 512 byte sectors as per ATA spec */ |
1719 | info->ssize = 0x200; | |
191648d0 JP |
1720 | usb_stor_dbg(us, "READ_CAPACITY: %ld sectors, %ld bytes per sector\n", |
1721 | info->sectors, info->ssize); | |
1da177e4 | 1722 | |
b7b1e655 DD |
1723 | /* |
1724 | * build the reply | |
1725 | * note: must return the sector number of the last sector, | |
1726 | * *not* the total number of sectors | |
1727 | */ | |
1da177e4 LT |
1728 | ((__be32 *) ptr)[0] = cpu_to_be32(info->sectors - 1); |
1729 | ((__be32 *) ptr)[1] = cpu_to_be32(info->ssize); | |
1730 | usb_stor_set_xfer_buf(ptr, 8, srb); | |
1731 | ||
1732 | return USB_STOR_TRANSPORT_GOOD; | |
1733 | } | |
1734 | ||
1735 | if (srb->cmnd[0] == MODE_SELECT_10) { | |
191648d0 | 1736 | usb_stor_dbg(us, "Gah! MODE_SELECT_10\n"); |
1da177e4 LT |
1737 | return USB_STOR_TRANSPORT_ERROR; |
1738 | } | |
1739 | ||
1740 | if (srb->cmnd[0] == READ_10) { | |
1741 | block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) | | |
1742 | ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5])); | |
1743 | ||
1744 | blocks = ((u32)(srb->cmnd[7]) << 8) | ((u32)(srb->cmnd[8])); | |
1745 | ||
191648d0 JP |
1746 | usb_stor_dbg(us, "READ_10: read block 0x%04lx count %ld\n", |
1747 | block, blocks); | |
1da177e4 LT |
1748 | return usbat_flash_read_data(us, info, block, blocks); |
1749 | } | |
1750 | ||
1751 | if (srb->cmnd[0] == READ_12) { | |
b7b1e655 DD |
1752 | /* |
1753 | * I don't think we'll ever see a READ_12 but support it anyway | |
1754 | */ | |
1da177e4 LT |
1755 | block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) | |
1756 | ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5])); | |
1757 | ||
1758 | blocks = ((u32)(srb->cmnd[6]) << 24) | ((u32)(srb->cmnd[7]) << 16) | | |
1759 | ((u32)(srb->cmnd[8]) << 8) | ((u32)(srb->cmnd[9])); | |
1760 | ||
191648d0 JP |
1761 | usb_stor_dbg(us, "READ_12: read block 0x%04lx count %ld\n", |
1762 | block, blocks); | |
1da177e4 LT |
1763 | return usbat_flash_read_data(us, info, block, blocks); |
1764 | } | |
1765 | ||
1766 | if (srb->cmnd[0] == WRITE_10) { | |
1767 | block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) | | |
1768 | ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5])); | |
1769 | ||
1770 | blocks = ((u32)(srb->cmnd[7]) << 8) | ((u32)(srb->cmnd[8])); | |
1771 | ||
191648d0 JP |
1772 | usb_stor_dbg(us, "WRITE_10: write block 0x%04lx count %ld\n", |
1773 | block, blocks); | |
1da177e4 LT |
1774 | return usbat_flash_write_data(us, info, block, blocks); |
1775 | } | |
1776 | ||
1777 | if (srb->cmnd[0] == WRITE_12) { | |
b7b1e655 DD |
1778 | /* |
1779 | * I don't think we'll ever see a WRITE_12 but support it anyway | |
1780 | */ | |
1da177e4 LT |
1781 | block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) | |
1782 | ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5])); | |
1783 | ||
1784 | blocks = ((u32)(srb->cmnd[6]) << 24) | ((u32)(srb->cmnd[7]) << 16) | | |
1785 | ((u32)(srb->cmnd[8]) << 8) | ((u32)(srb->cmnd[9])); | |
1786 | ||
191648d0 JP |
1787 | usb_stor_dbg(us, "WRITE_12: write block 0x%04lx count %ld\n", |
1788 | block, blocks); | |
1da177e4 LT |
1789 | return usbat_flash_write_data(us, info, block, blocks); |
1790 | } | |
1791 | ||
1792 | ||
1793 | if (srb->cmnd[0] == TEST_UNIT_READY) { | |
191648d0 | 1794 | usb_stor_dbg(us, "TEST_UNIT_READY\n"); |
1da177e4 LT |
1795 | |
1796 | rc = usbat_flash_check_media(us, info); | |
1797 | if (rc != USB_STOR_TRANSPORT_GOOD) | |
1798 | return rc; | |
1799 | ||
1800 | return usbat_check_status(us); | |
1801 | } | |
1802 | ||
1803 | if (srb->cmnd[0] == REQUEST_SENSE) { | |
191648d0 | 1804 | usb_stor_dbg(us, "REQUEST_SENSE\n"); |
1da177e4 LT |
1805 | |
1806 | memset(ptr, 0, 18); | |
1807 | ptr[0] = 0xF0; | |
1808 | ptr[2] = info->sense_key; | |
1809 | ptr[7] = 11; | |
1810 | ptr[12] = info->sense_asc; | |
1811 | ptr[13] = info->sense_ascq; | |
1812 | usb_stor_set_xfer_buf(ptr, 18, srb); | |
1813 | ||
1814 | return USB_STOR_TRANSPORT_GOOD; | |
1815 | } | |
1816 | ||
1817 | if (srb->cmnd[0] == ALLOW_MEDIUM_REMOVAL) { | |
b7b1e655 DD |
1818 | /* |
1819 | * sure. whatever. not like we can stop the user from popping | |
1820 | * the media out of the device (no locking doors, etc) | |
1821 | */ | |
1da177e4 LT |
1822 | return USB_STOR_TRANSPORT_GOOD; |
1823 | } | |
1824 | ||
191648d0 JP |
1825 | usb_stor_dbg(us, "Gah! Unknown command: %d (0x%x)\n", |
1826 | srb->cmnd[0], srb->cmnd[0]); | |
1da177e4 LT |
1827 | info->sense_key = 0x05; |
1828 | info->sense_asc = 0x20; | |
1829 | info->sense_ascq = 0x00; | |
1830 | return USB_STOR_TRANSPORT_FAILED; | |
1831 | } | |
1832 | ||
26d6818f | 1833 | static int init_usbat_cd(struct us_data *us) |
bdcfd9e3 PC |
1834 | { |
1835 | return init_usbat(us, USBAT_DEV_HP8200); | |
1836 | } | |
1837 | ||
26d6818f | 1838 | static int init_usbat_flash(struct us_data *us) |
bdcfd9e3 PC |
1839 | { |
1840 | return init_usbat(us, USBAT_DEV_FLASH); | |
1841 | } | |
1842 | ||
aa519be3 AM |
1843 | static struct scsi_host_template usbat_host_template; |
1844 | ||
26d6818f AS |
1845 | static int usbat_probe(struct usb_interface *intf, |
1846 | const struct usb_device_id *id) | |
bdcfd9e3 | 1847 | { |
26d6818f AS |
1848 | struct us_data *us; |
1849 | int result; | |
1850 | ||
1851 | result = usb_stor_probe1(&us, intf, id, | |
aa519be3 AM |
1852 | (id - usbat_usb_ids) + usbat_unusual_dev_list, |
1853 | &usbat_host_template); | |
26d6818f AS |
1854 | if (result) |
1855 | return result; | |
1856 | ||
f0183a33 FB |
1857 | /* |
1858 | * The actual transport will be determined later by the | |
26d6818f AS |
1859 | * initialization routine; this is just a placeholder. |
1860 | */ | |
1861 | us->transport_name = "Shuttle USBAT"; | |
1862 | us->transport = usbat_flash_transport; | |
1863 | us->transport_reset = usb_stor_CB_reset; | |
df602c2d | 1864 | us->max_lun = 0; |
26d6818f AS |
1865 | |
1866 | result = usb_stor_probe2(us); | |
1867 | return result; | |
bdcfd9e3 PC |
1868 | } |
1869 | ||
26d6818f | 1870 | static struct usb_driver usbat_driver = { |
aa519be3 | 1871 | .name = DRV_NAME, |
26d6818f AS |
1872 | .probe = usbat_probe, |
1873 | .disconnect = usb_stor_disconnect, | |
1874 | .suspend = usb_stor_suspend, | |
1875 | .resume = usb_stor_resume, | |
1876 | .reset_resume = usb_stor_reset_resume, | |
1877 | .pre_reset = usb_stor_pre_reset, | |
1878 | .post_reset = usb_stor_post_reset, | |
1879 | .id_table = usbat_usb_ids, | |
1880 | .soft_unbind = 1, | |
e73b2db6 | 1881 | .no_dynamic_id = 1, |
26d6818f AS |
1882 | }; |
1883 | ||
aa519be3 | 1884 | module_usb_stor_driver(usbat_driver, usbat_host_template, DRV_NAME); |