| Start/ | End/ | |||
| True | False | - | Line | Source |
| 1 | /* Driver for Datafab USB Compact Flash reader | |||
| 2 | * | |||
| 3 | * $Id: datafab.c,v 1.7 2002/02/25 00:40:13 mdharm Exp $ | |||
| 4 | * | |||
| 5 | * datafab driver v0.1: | |||
| 6 | * | |||
| 7 | * First release | |||
| 8 | * | |||
| 9 | * Current development and maintenance by: | |||
| 10 | * (c) 2000 Jimmie Mayfield (mayfield+datafab@sackheads.org) | |||
| 11 | * | |||
| 12 | * Many thanks to Robert Baruch for the SanDisk SmartMedia reader driver | |||
| 13 | * which I used as a template for this driver. | |||
| 14 | * | |||
| 15 | * Some bugfixes and scatter-gather code by Gregory P. Smith | |||
| 16 | * (greg-usb@electricrain.com) | |||
| 17 | * | |||
| 18 | * Fix for media change by Joerg Schneider (js@joergschneider.com) | |||
| 19 | * | |||
| 20 | * Other contributors: | |||
| 21 | * (c) 2002 Alan Stern <stern@rowland.org> | |||
| 22 | * | |||
| 23 | * This program is free software; you can redistribute it and/or modify it | |||
| 24 | * under the terms of the GNU General Public License as published by the | |||
| 25 | * Free Software Foundation; either version 2, or (at your option) any | |||
| 26 | * later version. | |||
| 27 | * | |||
| 28 | * This program is distributed in the hope that it will be useful, but | |||
| 29 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |||
| 30 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |||
| 31 | * General Public License for more details. | |||
| 32 | * | |||
| 33 | * You should have received a copy of the GNU General Public License along | |||
| 34 | * with this program; if not, write to the Free Software Foundation, Inc., | |||
| 35 | * 675 Mass Ave, Cambridge, MA 02139, USA. | |||
| 36 | */ | |||
| 37 | ||||
| 38 | /* | |||
| 39 | * This driver attempts to support USB CompactFlash reader/writer devices | |||
| 40 | * based on Datafab USB-to-ATA chips. It was specifically developed for the | |||
| 41 | * Datafab MDCFE-B USB CompactFlash reader but has since been found to work | |||
| 42 | * with a variety of Datafab-based devices from a number of manufacturers. | |||
| 43 | * I've received a report of this driver working with a Datafab-based | |||
| 44 | * SmartMedia device though please be aware that I'm personally unable to | |||
| 45 | * test SmartMedia support. | |||
| 46 | * | |||
| 47 | * This driver supports reading and writing. If you're truly paranoid, | |||
| 48 | * however, you can force the driver into a write-protected state by setting | |||
| 49 | * the WP enable bits in datafab_handle_mode_sense(). See the comments | |||
| 50 | * in that routine. | |||
| 51 | */ | |||
| 52 | ||||
| 53 | #include <linux/sched.h> | |||
| 54 | #include <linux/errno.h> | |||
| 55 | #include <linux/slab.h> | |||
| 56 | ||||
| 57 | #include <scsi/scsi.h> | |||
| 58 | #include <scsi/scsi_cmnd.h> | |||
| 59 | ||||
| 60 | #include "usb.h" | |||
| 61 | #include "transport.h" | |||
| 62 | #include "protocol.h" | |||
| 63 | #include "debug.h" | |||
| 64 | #include "datafab.h" | |||
| 65 | ||||
| 66 | static int datafab_determine_lun(struct us_data *us, | |||
| 67 | struct datafab_info *info); | |||
| 68 | ||||
| 69 | ||||
| 70 | static inline int | |||
| 0 | 0 | - | 71 | datafab_bulk_read(struct us_data *us, unsigned char *data, unsigned int len) { |
| 0 | 0 | - | 72 | if (len == 0) |
| 0 | - | 73 | return USB_STOR_XFER_GOOD; | |
| 74 | ||||
| 75 | US_DEBUGP("datafab_bulk_read: len = %d\n", len); | |||
| 76 | return usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, | |||
| 0 | - | 77 | data, len, NULL); | |
| 78 | } | |||
| 79 | ||||
| 80 | ||||
| 81 | static inline int | |||
| 0 | 0 | - | 82 | datafab_bulk_write(struct us_data *us, unsigned char *data, unsigned int len) { |
| 0 | 0 | - | 83 | if (len == 0) |
| 0 | - | 84 | return USB_STOR_XFER_GOOD; | |
| 85 | ||||
| 86 | US_DEBUGP("datafab_bulk_write: len = %d\n", len); | |||
| 87 | return usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe, | |||
| 0 | - | 88 | data, len, NULL); | |
| 89 | } | |||
| 90 | ||||
| 91 | ||||
| 0 | 0 | - | 92 | static int datafab_read_data(struct us_data *us, |
| 93 | struct datafab_info *info, | |||
| 94 | u32 sector, | |||
| 95 | u32 sectors) | |||
| 96 | { | |||
| 97 | unsigned char *command = us->iobuf; | |||
| 98 | unsigned char *buffer; | |||
| 99 | unsigned char thistime; | |||
| 100 | unsigned int totallen, alloclen; | |||
| 101 | int len, result; | |||
| 102 | unsigned int sg_idx = 0, sg_offset = 0; | |||
| 103 | ||||
| 104 | // we're working in LBA mode. according to the ATA spec, | |||
| 105 | // we can support up to 28-bit addressing. I don't know if Datafab | |||
| 106 | // supports beyond 24-bit addressing. It's kind of hard to test | |||
| 107 | // since it requires > 8GB CF card. | |||
| 108 | // | |||
| 0 | 0 | - | 109 | if (sectors > 0x0FFFFFFF) |
| 0 | - | 110 | return USB_STOR_TRANSPORT_ERROR; | |
| 111 | ||||
| 0 | 0 | - | 112 | if (info->lun == -1) { |
| 113 | result = datafab_determine_lun(us, info); | |||
| 0 | 0 | - | 114 | if (result != USB_STOR_TRANSPORT_GOOD) |
| 0 | - | 115 | return result; | |
| 116 | } | |||
| 117 | ||||
| 118 | totallen = sectors * info->ssize; | |||
| 119 | ||||
| 120 | // Since we don't read more than 64 KB at a time, we have to create | |||
| 121 | // a bounce buffer and move the data a piece at a time between the | |||
| 122 | // bounce buffer and the actual transfer buffer. | |||
| 123 | ||||
| 124 | alloclen = min(totallen, 65536u); | |||
| 125 | buffer = kmalloc(alloclen, GFP_NOIO); | |||
| 0 | 0 | - | 126 | if (buffer == NULL) |
| 0 | - | 127 | return USB_STOR_TRANSPORT_ERROR; | |
| 128 | ||||
| 129 | do { | |||
| 130 | // loop, never allocate or transfer more than 64k at once | |||
| 131 | // (min(128k, 255*info->ssize) is the real limit) | |||
| 132 | ||||
| 133 | len = min(totallen, alloclen); | |||
| 134 | thistime = (len / info->ssize) & 0xff; | |||
| 135 | ||||
| 136 | command[0] = 0; | |||
| 137 | command[1] = thistime; | |||
| 138 | command[2] = sector & 0xFF; | |||
| 139 | command[3] = (sector >> 8) & 0xFF; | |||
| 140 | command[4] = (sector >> 16) & 0xFF; | |||
| 141 | ||||
| 142 | command[5] = 0xE0 + (info->lun << 4); | |||
| 143 | command[5] |= (sector >> 24) & 0x0F; | |||
| 144 | command[6] = 0x20; | |||
| 145 | command[7] = 0x01; | |||
| 146 | ||||
| 147 | // send the read command | |||
| 148 | result = datafab_bulk_write(us, command, 8); | |||
| 0 | 0 | - | 149 | if (result != USB_STOR_XFER_GOOD) |
| 0 | - | 150 | goto leave; | |
| 151 | ||||
| 152 | // read the result | |||
| 153 | result = datafab_bulk_read(us, buffer, len); | |||
| 0 | 0 | - | 154 | if (result != USB_STOR_XFER_GOOD) |
| 0 | - | 155 | goto leave; | |
| 156 | ||||
| 157 | // Store the data in the transfer buffer | |||
| 158 | usb_stor_access_xfer_buf(buffer, len, us->srb, | |||
| 159 | &sg_idx, &sg_offset, TO_XFER_BUF); | |||
| 160 | ||||
| 161 | sector += thistime; | |||
| 162 | totallen -= len; | |||
| 0 | 0 | - | 163 | } while (totallen > 0); |
| 164 | ||||
| 165 | kfree(buffer); | |||
| 0 | - | 166 | return USB_STOR_TRANSPORT_GOOD; | |
| 167 | ||||
| 168 | leave: | |||
| 169 | kfree(buffer); | |||
| 0 | - | 170 | return USB_STOR_TRANSPORT_ERROR; | |
| 171 | } | |||
| 172 | ||||
| 173 | ||||
| 0 | 0 | - | 174 | static int datafab_write_data(struct us_data *us, |
| 175 | struct datafab_info *info, | |||
| 176 | u32 sector, | |||
| 177 | u32 sectors) | |||
| 178 | { | |||
| 179 | unsigned char *command = us->iobuf; | |||
| 180 | unsigned char *reply = us->iobuf; | |||
| 181 | unsigned char *buffer; | |||
| 182 | unsigned char thistime; | |||
| 183 | unsigned int totallen, alloclen; | |||
| 184 | int len, result; | |||
| 185 | unsigned int sg_idx = 0, sg_offset = 0; | |||
| 186 | ||||
| 187 | // we're working in LBA mode. according to the ATA spec, | |||
| 188 | // we can support up to 28-bit addressing. I don't know if Datafab | |||
| 189 | // supports beyond 24-bit addressing. It's kind of hard to test | |||
| 190 | // since it requires > 8GB CF card. | |||
| 191 | // | |||
| 0 | 0 | - | 192 | if (sectors > 0x0FFFFFFF) |
| 0 | - | 193 | return USB_STOR_TRANSPORT_ERROR; | |
| 194 | ||||
| 0 | 0 | - | 195 | if (info->lun == -1) { |
| 196 | result = datafab_determine_lun(us, info); | |||
| 0 | 0 | - | 197 | if (result != USB_STOR_TRANSPORT_GOOD) |
| 0 | - | 198 | return result; | |
| 199 | } | |||
| 200 | ||||
| 201 | totallen = sectors * info->ssize; | |||
| 202 | ||||
| 203 | // Since we don't write more than 64 KB at a time, we have to create | |||
| 204 | // a bounce buffer and move the data a piece at a time between the | |||
| 205 | // bounce buffer and the actual transfer buffer. | |||
| 206 | ||||
| 207 | alloclen = min(totallen, 65536u); | |||
| 208 | buffer = kmalloc(alloclen, GFP_NOIO); | |||
| 0 | 0 | - | 209 | if (buffer == NULL) |
| 0 | - | 210 | return USB_STOR_TRANSPORT_ERROR; | |
| 211 | ||||
| 212 | do { | |||
| 213 | // loop, never allocate or transfer more than 64k at once | |||
| 214 | // (min(128k, 255*info->ssize) is the real limit) | |||
| 215 | ||||
| 216 | len = min(totallen, alloclen); | |||
| 217 | thistime = (len / info->ssize) & 0xff; | |||
| 218 | ||||
| 219 | // Get the data from the transfer buffer | |||
| 220 | usb_stor_access_xfer_buf(buffer, len, us->srb, | |||
| 221 | &sg_idx, &sg_offset, FROM_XFER_BUF); | |||
| 222 | ||||
| 223 | command[0] = 0; | |||
| 224 | command[1] = thistime; | |||
| 225 | command[2] = sector & 0xFF; | |||
| 226 | command[3] = (sector >> 8) & 0xFF; | |||
| 227 | command[4] = (sector >> 16) & 0xFF; | |||
| 228 | ||||
| 229 | command[5] = 0xE0 + (info->lun << 4); | |||
| 230 | command[5] |= (sector >> 24) & 0x0F; | |||
| 231 | command[6] = 0x30; | |||
| 232 | command[7] = 0x02; | |||
| 233 | ||||
| 234 | // send the command | |||
| 235 | result = datafab_bulk_write(us, command, 8); | |||
| 0 | 0 | - | 236 | if (result != USB_STOR_XFER_GOOD) |
| 0 | - | 237 | goto leave; | |
| 238 | ||||
| 239 | // send the data | |||
| 240 | result = datafab_bulk_write(us, buffer, len); | |||
| 0 | 0 | - | 241 | if (result != USB_STOR_XFER_GOOD) |
| 0 | - | 242 | goto leave; | |
| 243 | ||||
| 244 | // read the result | |||
| 245 | result = datafab_bulk_read(us, reply, 2); | |||
| 0 | 0 | - | 246 | if (result != USB_STOR_XFER_GOOD) |
| 0 | - | 247 | goto leave; | |
| 248 | ||||
| 0 | 0 | - | 249 | if (reply[0] != 0x50 && reply[1] != 0) { |
| 0 | - | 249 | T && T | |
| 0 | - | 249 | T && F | |
| 0 | - | 249 | F && _ | |
| 250 | US_DEBUGP("datafab_write_data: Gah! " | |||
| 251 | "write return code: %02x %02x\n", | |||
| 252 | reply[0], reply[1]); | |||
| 253 | result = USB_STOR_TRANSPORT_ERROR; | |||
| 0 | - | 254 | goto leave; | |
| 255 | } | |||
| 256 | ||||
| 257 | sector += thistime; | |||
| 258 | totallen -= len; | |||
| 0 | 0 | - | 259 | } while (totallen > 0); |
| 260 | ||||
| 261 | kfree(buffer); | |||
| 0 | - | 262 | return USB_STOR_TRANSPORT_GOOD; | |
| 263 | ||||
| 264 | leave: | |||
| 265 | kfree(buffer); | |||
| 0 | - | 266 | return USB_STOR_TRANSPORT_ERROR; | |
| 267 | } | |||
| 268 | ||||
| 269 | ||||
| 0 | 0 | - | 270 | static int datafab_determine_lun(struct us_data *us, |
| 271 | struct datafab_info *info) | |||
| 272 | { | |||
| 273 | // Dual-slot readers can be thought of as dual-LUN devices. | |||
| 274 | // We need to determine which card slot is being used. | |||
| 275 | // We'll send an IDENTIFY DEVICE command and see which LUN responds... | |||
| 276 | // | |||
| 277 | // There might be a better way of doing this? | |||
| 278 | ||||
| 279 | static unsigned char scommand[8] = { 0, 1, 0, 0, 0, 0xa0, 0xec, 1 }; | |||
| 280 | unsigned char *command = us->iobuf; | |||
| 281 | unsigned char *buf; | |||
| 282 | int count = 0, rc; | |||
| 283 | ||||
| 0 | 0 | - | 284 | if (!us || !info) |
| 0 | - | 284 | T || _ | |
| 0 | - | 284 | F || T | |
| 0 | - | 284 | F || F | |
| 0 | - | 285 | return USB_STOR_TRANSPORT_ERROR; | |
| 286 | ||||
| 287 | memcpy(command, scommand, 8); | |||
| 288 | buf = kmalloc(512, GFP_NOIO); | |||
| 0 | 0 | - | 289 | if (!buf) |
| 0 | - | 290 | return USB_STOR_TRANSPORT_ERROR; | |
| 291 | ||||
| 292 | US_DEBUGP("datafab_determine_lun: locating...\n"); | |||
| 293 | ||||
| 294 | // we'll try 3 times before giving up... | |||
| 295 | // | |||
| 0 | 0 | - | 296 | while (count++ < 3) { |
| 297 | command[5] = 0xa0; | |||
| 298 | ||||
| 299 | rc = datafab_bulk_write(us, command, 8); | |||
| 0 | 0 | - | 300 | if (rc != USB_STOR_XFER_GOOD) { |
| 301 | rc = USB_STOR_TRANSPORT_ERROR; | |||
| 0 | - | 302 | goto leave; | |
| 303 | } | |||
| 304 | ||||
| 305 | rc = datafab_bulk_read(us, buf, 512); | |||
| 0 | 0 | - | 306 | if (rc == USB_STOR_XFER_GOOD) { |
| 307 | info->lun = 0; | |||
| 308 | rc = USB_STOR_TRANSPORT_GOOD; | |||
| 0 | - | 309 | goto leave; | |
| 310 | } | |||
| 311 | ||||
| 312 | command[5] = 0xb0; | |||
| 313 | ||||
| 314 | rc = datafab_bulk_write(us, command, 8); | |||
| 0 | 0 | - | 315 | if (rc != USB_STOR_XFER_GOOD) { |
| 316 | rc = USB_STOR_TRANSPORT_ERROR; | |||
| 0 | - | 317 | goto leave; | |
| 318 | } | |||
| 319 | ||||
| 320 | rc = datafab_bulk_read(us, buf, 512); | |||
| 0 | 0 | - | 321 | if (rc == USB_STOR_XFER_GOOD) { |
| 322 | info->lun = 1; | |||
| 323 | rc = USB_STOR_TRANSPORT_GOOD; | |||
| 0 | - | 324 | goto leave; | |
| 325 | } | |||
| 326 | ||||
| 327 | msleep(20); | |||
| 328 | } | |||
| 329 | ||||
| 330 | rc = USB_STOR_TRANSPORT_ERROR; | |||
| 331 | ||||
| 332 | leave: | |||
| 333 | kfree(buf); | |||
| 0 | - | 334 | return rc; | |
| 335 | } | |||
| 336 | ||||
| 0 | 0 | - | 337 | static int datafab_id_device(struct us_data *us, |
| 338 | struct datafab_info *info) | |||
| 339 | { | |||
| 340 | // this is a variation of the ATA "IDENTIFY DEVICE" command...according | |||
| 341 | // to the ATA spec, 'Sector Count' isn't used but the Windows driver | |||
| 342 | // sets this bit so we do too... | |||
| 343 | // | |||
| 344 | static unsigned char scommand[8] = { 0, 1, 0, 0, 0, 0xa0, 0xec, 1 }; | |||
| 345 | unsigned char *command = us->iobuf; | |||
| 346 | unsigned char *reply; | |||
| 347 | int rc; | |||
| 348 | ||||
| 0 | 0 | - | 349 | if (!us || !info) |
| 0 | - | 349 | T || _ | |
| 0 | - | 349 | F || T | |
| 0 | - | 349 | F || F | |
| 0 | - | 350 | return USB_STOR_TRANSPORT_ERROR; | |
| 351 | ||||
| 0 | 0 | - | 352 | if (info->lun == -1) { |
| 353 | rc = datafab_determine_lun(us, info); | |||
| 0 | 0 | - | 354 | if (rc != USB_STOR_TRANSPORT_GOOD) |
| 0 | - | 355 | return rc; | |
| 356 | } | |||
| 357 | ||||
| 358 | memcpy(command, scommand, 8); | |||
| 359 | reply = kmalloc(512, GFP_NOIO); | |||
| 0 | 0 | - | 360 | if (!reply) |
| 0 | - | 361 | return USB_STOR_TRANSPORT_ERROR; | |
| 362 | ||||
| 363 | command[5] += (info->lun << 4); | |||
| 364 | ||||
| 365 | rc = datafab_bulk_write(us, command, 8); | |||
| 0 | 0 | - | 366 | if (rc != USB_STOR_XFER_GOOD) { |
| 367 | rc = USB_STOR_TRANSPORT_ERROR; | |||
| 0 | - | 368 | goto leave; | |
| 369 | } | |||
| 370 | ||||
| 371 | // we'll go ahead and extract the media capacity while we're here... | |||
| 372 | // | |||
| 373 | rc = datafab_bulk_read(us, reply, 512); | |||
| 0 | 0 | - | 374 | if (rc == USB_STOR_XFER_GOOD) { |
| 375 | // capacity is at word offset 57-58 | |||
| 376 | // | |||
| 377 | info->sectors = ((u32)(reply[117]) << 24) | | |||
| 378 | ((u32)(reply[116]) << 16) | | |||
| 379 | ((u32)(reply[115]) << 8) | | |||
| 380 | ((u32)(reply[114]) ); | |||
| 381 | rc = USB_STOR_TRANSPORT_GOOD; | |||
| 0 | - | 382 | goto leave; | |
| 383 | } | |||
| 384 | ||||
| 385 | rc = USB_STOR_TRANSPORT_ERROR; | |||
| 386 | ||||
| 387 | leave: | |||
| 388 | kfree(reply); | |||
| 0 | - | 389 | return rc; | |
| 390 | } | |||
| 391 | ||||
| 392 | ||||
| 0 | 0 | - | 393 | static int datafab_handle_mode_sense(struct us_data *us, |
| 394 | struct scsi_cmnd * srb, | |||
| 395 | int sense_6) | |||
| 396 | { | |||
| 397 | static unsigned char rw_err_page[12] = { | |||
| 398 | 0x1, 0xA, 0x21, 1, 0, 0, 0, 0, 1, 0, 0, 0 | |||
| 399 | }; | |||
| 400 | static unsigned char cache_page[12] = { | |||
| 401 | 0x8, 0xA, 0x1, 0, 0, 0, 0, 0, 0, 0, 0, 0 | |||
| 402 | }; | |||
| 403 | static unsigned char rbac_page[12] = { | |||
| 404 | 0x1B, 0xA, 0, 0x81, 0, 0, 0, 0, 0, 0, 0, 0 | |||
| 405 | }; | |||
| 406 | static unsigned char timer_page[8] = { | |||
| 407 | 0x1C, 0x6, 0, 0, 0, 0 | |||
| 408 | }; | |||
| 409 | unsigned char pc, page_code; | |||
| 410 | unsigned int i = 0; | |||
| 411 | struct datafab_info *info = (struct datafab_info *) (us->extra); | |||
| 412 | unsigned char *ptr = us->iobuf; | |||
| 413 | ||||
| 414 | // most of this stuff is just a hack to get things working. the | |||
| 415 | // datafab reader doesn't present a SCSI interface so we | |||
| 416 | // fudge the SCSI commands... | |||
| 417 | // | |||
| 418 | ||||
| 419 | pc = srb->cmnd[2] >> 6; | |||
| 420 | page_code = srb->cmnd[2] & 0x3F; | |||
| 421 | ||||
| 422 | switch (pc) { | |||
| 0 | - | 423 | case 0x0: | |
| 424 | US_DEBUGP("datafab_handle_mode_sense: Current values\n"); | |||
| 0 | - | 425 | break; | |
| 0 | - | 426 | case 0x1: | |
| 427 | US_DEBUGP("datafab_handle_mode_sense: Changeable values\n"); | |||
| 0 | - | 428 | break; | |
| 0 | - | 429 | case 0x2: | |
| 430 | US_DEBUGP("datafab_handle_mode_sense: Default values\n"); | |||
| 0 | - | 431 | break; | |
| 0 | - | 432 | case 0x3: | |
| 433 | US_DEBUGP("datafab_handle_mode_sense: Saves values\n"); | |||
| 0 | - | 434 | break; | |
| 435 | } | |||
| 436 | ||||
| 437 | memset(ptr, 0, 8); | |||
| 0 | 0 | - | 438 | if (sense_6) { |
| 439 | ptr[2] = 0x00; // WP enable: 0x80 | |||
| 440 | i = 4; | |||
| 441 | } else { | |||
| 442 | ptr[3] = 0x00; // WP enable: 0x80 | |||
| 443 | i = 8; | |||
| 444 | } | |||
| 445 | ||||
| 446 | switch (page_code) { | |||
| 0 | - | 447 | default: | |
| 448 | // vendor-specific mode | |||
| 449 | info->sense_key = 0x05; | |||
| 450 | info->sense_asc = 0x24; | |||
| 451 | info->sense_ascq = 0x00; | |||
| 0 | - | 452 | return USB_STOR_TRANSPORT_FAILED; | |
| 453 | ||||
| 0 | - | 454 | case 0x1: | |
| 455 | memcpy(ptr + i, rw_err_page, sizeof(rw_err_page)); | |||
| 456 | i += sizeof(rw_err_page); | |||
| 0 | - | 457 | break; | |
| 458 | ||||
| 0 | - | 459 | case 0x8: | |
| 460 | memcpy(ptr + i, cache_page, sizeof(cache_page)); | |||
| 461 | i += sizeof(cache_page); | |||
| 0 | - | 462 | break; | |
| 463 | ||||
| 0 | - | 464 | case 0x1B: | |
| 465 | memcpy(ptr + i, rbac_page, sizeof(rbac_page)); | |||
| 466 | i += sizeof(rbac_page); | |||
| 0 | - | 467 | break; | |
| 468 | ||||
| 0 | - | 469 | case 0x1C: | |
| 470 | memcpy(ptr + i, timer_page, sizeof(timer_page)); | |||
| 471 | i += sizeof(timer_page); | |||
| 0 | - | 472 | break; | |
| 473 | ||||
| 0 | - | 474 | case 0x3F: // retrieve all pages | |
| 475 | memcpy(ptr + i, timer_page, sizeof(timer_page)); | |||
| 476 | i += sizeof(timer_page); | |||
| 477 | memcpy(ptr + i, rbac_page, sizeof(rbac_page)); | |||
| 478 | i += sizeof(rbac_page); | |||
| 479 | memcpy(ptr + i, cache_page, sizeof(cache_page)); | |||
| 480 | i += sizeof(cache_page); | |||
| 481 | memcpy(ptr + i, rw_err_page, sizeof(rw_err_page)); | |||
| 482 | i += sizeof(rw_err_page); | |||
| 0 | - | 483 | break; | |
| 484 | } | |||
| 485 | ||||
| 0 | 0 | - | 486 | if (sense_6) |
| 487 | ptr[0] = i - 1; | |||
| 488 | else | |||
| 489 | ((__be16 *) ptr)[0] = cpu_to_be16(i - 2); | |||
| 0 | 0 | - | 489 | ternary-?: __builtin_constant_p ( ( __u16 ) .. |
| 490 | usb_stor_set_xfer_buf(ptr, i, srb); | |||
| 491 | ||||
| 0 | - | 492 | return USB_STOR_TRANSPORT_GOOD; | |
| 493 | } | |||
| 494 | ||||
| 0 | 0 | - | 495 | static void datafab_info_destructor(void *extra) |
| 496 | { | |||
| 497 | // this routine is a placeholder... | |||
| 498 | // currently, we don't allocate any extra memory so we're okay | |||
| 499 | } | |||
| 500 | ||||
| 501 | ||||
| 502 | // Transport for the Datafab MDCFE-B | |||
| 503 | // | |||
| 0 | 0 | - | 504 | int datafab_transport(struct scsi_cmnd * srb, struct us_data *us) |
| 505 | { | |||
| 506 | struct datafab_info *info; | |||
| 507 | int rc; | |||
| 508 | unsigned long block, blocks; | |||
| 509 | unsigned char *ptr = us->iobuf; | |||
| 510 | static unsigned char inquiry_reply[8] = { | |||
| 511 | 0x00, 0x80, 0x00, 0x01, 0x1F, 0x00, 0x00, 0x00 | |||
| 512 | }; | |||
| 513 | ||||
| 0 | 0 | - | 514 | if (!us->extra) { |
| 515 | us->extra = kmalloc(sizeof(struct datafab_info), GFP_NOIO); | |||
| 0 | 0 | - | 516 | if (!us->extra) { |
| 517 | US_DEBUGP("datafab_transport: Gah! " | |||
| 518 | "Can't allocate storage for Datafab info struct!\n"); | |||
| 0 | - | 519 | return USB_STOR_TRANSPORT_ERROR; | |
| 520 | } | |||
| 521 | memset(us->extra, 0, sizeof(struct datafab_info)); | |||
| 522 | us->extra_destructor = datafab_info_destructor; | |||
| 523 | ((struct datafab_info *)us->extra)->lun = -1; | |||
| 524 | } | |||
| 525 | ||||
| 526 | info = (struct datafab_info *) (us->extra); | |||
| 527 | ||||
| 0 | 0 | - | 528 | if (srb->cmnd[0] == INQUIRY) { |
| 529 | ||||