Felipe Balbi | f0183a3 | 2016-04-18 13:09:11 +0300 | [diff] [blame] | 1 | /* |
| 2 | * Driver for Lexar "Jumpshot" Compact Flash reader |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | * jumpshot driver v0.1: |
| 5 | * |
| 6 | * First release |
| 7 | * |
| 8 | * Current development and maintenance by: |
| 9 | * (c) 2000 Jimmie Mayfield (mayfield+usb@sackheads.org) |
| 10 | * |
| 11 | * Many thanks to Robert Baruch for the SanDisk SmartMedia reader driver |
| 12 | * which I used as a template for this driver. |
| 13 | * |
| 14 | * Some bugfixes and scatter-gather code by Gregory P. Smith |
| 15 | * (greg-usb@electricrain.com) |
| 16 | * |
| 17 | * Fix for media change by Joerg Schneider (js@joergschneider.com) |
| 18 | * |
| 19 | * Developed with the assistance of: |
| 20 | * |
| 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 the Lexar Jumpshot USB CompactFlash |
| 40 | * reader. Like many other USB CompactFlash readers, the Jumpshot contains |
| 41 | * a USB-to-ATA chip. |
| 42 | * |
| 43 | * This driver supports reading and writing. If you're truly paranoid, |
| 44 | * however, you can force the driver into a write-protected state by setting |
| 45 | * the WP enable bits in jumpshot_handle_mode_sense. See the comments |
| 46 | * in that routine. |
| 47 | */ |
| 48 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | #include <linux/errno.h> |
Alan Stern | a9fb6d0 | 2009-02-12 14:48:19 -0500 | [diff] [blame] | 50 | #include <linux/module.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | #include <linux/slab.h> |
| 52 | |
| 53 | #include <scsi/scsi.h> |
| 54 | #include <scsi/scsi_cmnd.h> |
| 55 | |
| 56 | #include "usb.h" |
| 57 | #include "transport.h" |
| 58 | #include "protocol.h" |
| 59 | #include "debug.h" |
Akinobu Mita | aa519be | 2015-05-06 18:24:21 +0900 | [diff] [blame] | 60 | #include "scsiglue.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | |
Akinobu Mita | aa519be | 2015-05-06 18:24:21 +0900 | [diff] [blame] | 62 | #define DRV_NAME "ums-jumpshot" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | |
Maciej Grela | 4246b06 | 2009-02-28 12:39:20 -0800 | [diff] [blame] | 64 | MODULE_DESCRIPTION("Driver for Lexar \"Jumpshot\" Compact Flash reader"); |
| 65 | MODULE_AUTHOR("Jimmie Mayfield <mayfield+usb@sackheads.org>"); |
| 66 | MODULE_LICENSE("GPL"); |
| 67 | |
Alan Stern | a9fb6d0 | 2009-02-12 14:48:19 -0500 | [diff] [blame] | 68 | /* |
| 69 | * The table of devices |
| 70 | */ |
| 71 | #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \ |
| 72 | vendorName, productName, useProtocol, useTransport, \ |
| 73 | initFunction, flags) \ |
| 74 | { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ |
Sebastian Andrzej Siewior | f61870e | 2012-08-28 22:37:13 +0200 | [diff] [blame] | 75 | .driver_info = (flags) } |
Alan Stern | a9fb6d0 | 2009-02-12 14:48:19 -0500 | [diff] [blame] | 76 | |
Felipe Balbi | 9d35214 | 2011-11-15 09:53:34 +0200 | [diff] [blame] | 77 | static struct usb_device_id jumpshot_usb_ids[] = { |
Alan Stern | a9fb6d0 | 2009-02-12 14:48:19 -0500 | [diff] [blame] | 78 | # include "unusual_jumpshot.h" |
| 79 | { } /* Terminating entry */ |
| 80 | }; |
| 81 | MODULE_DEVICE_TABLE(usb, jumpshot_usb_ids); |
| 82 | |
| 83 | #undef UNUSUAL_DEV |
| 84 | |
| 85 | /* |
| 86 | * The flags table |
| 87 | */ |
| 88 | #define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \ |
| 89 | vendor_name, product_name, use_protocol, use_transport, \ |
| 90 | init_function, Flags) \ |
| 91 | { \ |
| 92 | .vendorName = vendor_name, \ |
| 93 | .productName = product_name, \ |
| 94 | .useProtocol = use_protocol, \ |
| 95 | .useTransport = use_transport, \ |
| 96 | .initFunction = init_function, \ |
| 97 | } |
| 98 | |
| 99 | static struct us_unusual_dev jumpshot_unusual_dev_list[] = { |
| 100 | # include "unusual_jumpshot.h" |
| 101 | { } /* Terminating entry */ |
| 102 | }; |
| 103 | |
| 104 | #undef UNUSUAL_DEV |
| 105 | |
| 106 | |
| 107 | struct jumpshot_info { |
| 108 | unsigned long sectors; /* total sector count */ |
| 109 | unsigned long ssize; /* sector size in bytes */ |
| 110 | |
| 111 | /* the following aren't used yet */ |
| 112 | unsigned char sense_key; |
| 113 | unsigned long sense_asc; /* additional sense code */ |
| 114 | unsigned long sense_ascq; /* additional sense code qualifier */ |
| 115 | }; |
| 116 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 117 | static inline int jumpshot_bulk_read(struct us_data *us, |
| 118 | unsigned char *data, |
| 119 | unsigned int len) |
| 120 | { |
| 121 | if (len == 0) |
| 122 | return USB_STOR_XFER_GOOD; |
| 123 | |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 124 | usb_stor_dbg(us, "len = %d\n", len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | return usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, |
| 126 | data, len, NULL); |
| 127 | } |
| 128 | |
| 129 | |
| 130 | static inline int jumpshot_bulk_write(struct us_data *us, |
| 131 | unsigned char *data, |
| 132 | unsigned int len) |
| 133 | { |
| 134 | if (len == 0) |
| 135 | return USB_STOR_XFER_GOOD; |
| 136 | |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 137 | usb_stor_dbg(us, "len = %d\n", len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | return usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe, |
| 139 | data, len, NULL); |
| 140 | } |
| 141 | |
| 142 | |
| 143 | static int jumpshot_get_status(struct us_data *us) |
| 144 | { |
| 145 | int rc; |
| 146 | |
| 147 | if (!us) |
| 148 | return USB_STOR_TRANSPORT_ERROR; |
| 149 | |
| 150 | // send the setup |
| 151 | rc = usb_stor_ctrl_transfer(us, us->recv_ctrl_pipe, |
| 152 | 0, 0xA0, 0, 7, us->iobuf, 1); |
| 153 | |
| 154 | if (rc != USB_STOR_XFER_GOOD) |
| 155 | return USB_STOR_TRANSPORT_ERROR; |
| 156 | |
| 157 | if (us->iobuf[0] != 0x50) { |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 158 | usb_stor_dbg(us, "0x%2x\n", us->iobuf[0]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | return USB_STOR_TRANSPORT_ERROR; |
| 160 | } |
| 161 | |
| 162 | return USB_STOR_TRANSPORT_GOOD; |
| 163 | } |
| 164 | |
| 165 | static int jumpshot_read_data(struct us_data *us, |
| 166 | struct jumpshot_info *info, |
| 167 | u32 sector, |
| 168 | u32 sectors) |
| 169 | { |
| 170 | unsigned char *command = us->iobuf; |
| 171 | unsigned char *buffer; |
| 172 | unsigned char thistime; |
| 173 | unsigned int totallen, alloclen; |
| 174 | int len, result; |
Jens Axboe | 1f6f31a | 2007-05-11 12:33:09 +0200 | [diff] [blame] | 175 | unsigned int sg_offset = 0; |
| 176 | struct scatterlist *sg = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | |
| 178 | // we're working in LBA mode. according to the ATA spec, |
| 179 | // we can support up to 28-bit addressing. I don't know if Jumpshot |
| 180 | // supports beyond 24-bit addressing. It's kind of hard to test |
| 181 | // since it requires > 8GB CF card. |
| 182 | |
| 183 | if (sector > 0x0FFFFFFF) |
| 184 | return USB_STOR_TRANSPORT_ERROR; |
| 185 | |
| 186 | totallen = sectors * info->ssize; |
| 187 | |
| 188 | // Since we don't read more than 64 KB at a time, we have to create |
| 189 | // a bounce buffer and move the data a piece at a time between the |
| 190 | // bounce buffer and the actual transfer buffer. |
| 191 | |
| 192 | alloclen = min(totallen, 65536u); |
| 193 | buffer = kmalloc(alloclen, GFP_NOIO); |
| 194 | if (buffer == NULL) |
| 195 | return USB_STOR_TRANSPORT_ERROR; |
| 196 | |
| 197 | do { |
| 198 | // loop, never allocate or transfer more than 64k at once |
| 199 | // (min(128k, 255*info->ssize) is the real limit) |
| 200 | len = min(totallen, alloclen); |
| 201 | thistime = (len / info->ssize) & 0xff; |
| 202 | |
| 203 | command[0] = 0; |
| 204 | command[1] = thistime; |
| 205 | command[2] = sector & 0xFF; |
| 206 | command[3] = (sector >> 8) & 0xFF; |
| 207 | command[4] = (sector >> 16) & 0xFF; |
| 208 | |
| 209 | command[5] = 0xE0 | ((sector >> 24) & 0x0F); |
| 210 | command[6] = 0x20; |
| 211 | |
| 212 | // send the setup + command |
| 213 | result = usb_stor_ctrl_transfer(us, us->send_ctrl_pipe, |
| 214 | 0, 0x20, 0, 1, command, 7); |
| 215 | if (result != USB_STOR_XFER_GOOD) |
| 216 | goto leave; |
| 217 | |
| 218 | // read the result |
| 219 | result = jumpshot_bulk_read(us, buffer, len); |
| 220 | if (result != USB_STOR_XFER_GOOD) |
| 221 | goto leave; |
| 222 | |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 223 | usb_stor_dbg(us, "%d bytes\n", len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | |
| 225 | // Store the data in the transfer buffer |
| 226 | usb_stor_access_xfer_buf(buffer, len, us->srb, |
Jens Axboe | 1f6f31a | 2007-05-11 12:33:09 +0200 | [diff] [blame] | 227 | &sg, &sg_offset, TO_XFER_BUF); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | |
| 229 | sector += thistime; |
| 230 | totallen -= len; |
| 231 | } while (totallen > 0); |
| 232 | |
| 233 | kfree(buffer); |
| 234 | return USB_STOR_TRANSPORT_GOOD; |
| 235 | |
| 236 | leave: |
| 237 | kfree(buffer); |
| 238 | return USB_STOR_TRANSPORT_ERROR; |
| 239 | } |
| 240 | |
| 241 | |
| 242 | static int jumpshot_write_data(struct us_data *us, |
| 243 | struct jumpshot_info *info, |
| 244 | u32 sector, |
| 245 | u32 sectors) |
| 246 | { |
| 247 | unsigned char *command = us->iobuf; |
| 248 | unsigned char *buffer; |
| 249 | unsigned char thistime; |
| 250 | unsigned int totallen, alloclen; |
| 251 | int len, result, waitcount; |
Jens Axboe | 1f6f31a | 2007-05-11 12:33:09 +0200 | [diff] [blame] | 252 | unsigned int sg_offset = 0; |
| 253 | struct scatterlist *sg = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | |
| 255 | // we're working in LBA mode. according to the ATA spec, |
| 256 | // we can support up to 28-bit addressing. I don't know if Jumpshot |
| 257 | // supports beyond 24-bit addressing. It's kind of hard to test |
| 258 | // since it requires > 8GB CF card. |
| 259 | // |
| 260 | if (sector > 0x0FFFFFFF) |
| 261 | return USB_STOR_TRANSPORT_ERROR; |
| 262 | |
| 263 | totallen = sectors * info->ssize; |
| 264 | |
| 265 | // Since we don't write more than 64 KB at a time, we have to create |
| 266 | // a bounce buffer and move the data a piece at a time between the |
| 267 | // bounce buffer and the actual transfer buffer. |
| 268 | |
| 269 | alloclen = min(totallen, 65536u); |
| 270 | buffer = kmalloc(alloclen, GFP_NOIO); |
| 271 | if (buffer == NULL) |
| 272 | return USB_STOR_TRANSPORT_ERROR; |
| 273 | |
| 274 | do { |
| 275 | // loop, never allocate or transfer more than 64k at once |
| 276 | // (min(128k, 255*info->ssize) is the real limit) |
| 277 | |
| 278 | len = min(totallen, alloclen); |
| 279 | thistime = (len / info->ssize) & 0xff; |
| 280 | |
| 281 | // Get the data from the transfer buffer |
| 282 | usb_stor_access_xfer_buf(buffer, len, us->srb, |
Jens Axboe | 1f6f31a | 2007-05-11 12:33:09 +0200 | [diff] [blame] | 283 | &sg, &sg_offset, FROM_XFER_BUF); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | |
| 285 | command[0] = 0; |
| 286 | command[1] = thistime; |
| 287 | command[2] = sector & 0xFF; |
| 288 | command[3] = (sector >> 8) & 0xFF; |
| 289 | command[4] = (sector >> 16) & 0xFF; |
| 290 | |
| 291 | command[5] = 0xE0 | ((sector >> 24) & 0x0F); |
| 292 | command[6] = 0x30; |
| 293 | |
| 294 | // send the setup + command |
| 295 | result = usb_stor_ctrl_transfer(us, us->send_ctrl_pipe, |
| 296 | 0, 0x20, 0, 1, command, 7); |
| 297 | if (result != USB_STOR_XFER_GOOD) |
| 298 | goto leave; |
| 299 | |
| 300 | // send the data |
| 301 | result = jumpshot_bulk_write(us, buffer, len); |
| 302 | if (result != USB_STOR_XFER_GOOD) |
| 303 | goto leave; |
| 304 | |
| 305 | // read the result. apparently the bulk write can complete |
| 306 | // before the jumpshot drive is finished writing. so we loop |
| 307 | // here until we get a good return code |
| 308 | waitcount = 0; |
| 309 | do { |
| 310 | result = jumpshot_get_status(us); |
| 311 | if (result != USB_STOR_TRANSPORT_GOOD) { |
| 312 | // I have not experimented to find the smallest value. |
| 313 | // |
| 314 | msleep(50); |
| 315 | } |
| 316 | } while ((result != USB_STOR_TRANSPORT_GOOD) && (waitcount < 10)); |
| 317 | |
| 318 | if (result != USB_STOR_TRANSPORT_GOOD) |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 319 | usb_stor_dbg(us, "Gah! Waitcount = 10. Bad write!?\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | |
| 321 | sector += thistime; |
| 322 | totallen -= len; |
| 323 | } while (totallen > 0); |
| 324 | |
| 325 | kfree(buffer); |
| 326 | return result; |
| 327 | |
| 328 | leave: |
| 329 | kfree(buffer); |
| 330 | return USB_STOR_TRANSPORT_ERROR; |
| 331 | } |
| 332 | |
| 333 | static int jumpshot_id_device(struct us_data *us, |
| 334 | struct jumpshot_info *info) |
| 335 | { |
| 336 | unsigned char *command = us->iobuf; |
| 337 | unsigned char *reply; |
| 338 | int rc; |
| 339 | |
Julia Lawall | 64aebe7 | 2009-07-19 17:29:57 +0200 | [diff] [blame] | 340 | if (!info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | return USB_STOR_TRANSPORT_ERROR; |
| 342 | |
| 343 | command[0] = 0xE0; |
| 344 | command[1] = 0xEC; |
| 345 | reply = kmalloc(512, GFP_NOIO); |
| 346 | if (!reply) |
| 347 | return USB_STOR_TRANSPORT_ERROR; |
| 348 | |
| 349 | // send the setup |
| 350 | rc = usb_stor_ctrl_transfer(us, us->send_ctrl_pipe, |
| 351 | 0, 0x20, 0, 6, command, 2); |
| 352 | |
| 353 | if (rc != USB_STOR_XFER_GOOD) { |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 354 | usb_stor_dbg(us, "Gah! send_control for read_capacity failed\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | rc = USB_STOR_TRANSPORT_ERROR; |
| 356 | goto leave; |
| 357 | } |
| 358 | |
| 359 | // read the reply |
| 360 | rc = jumpshot_bulk_read(us, reply, 512); |
| 361 | if (rc != USB_STOR_XFER_GOOD) { |
| 362 | rc = USB_STOR_TRANSPORT_ERROR; |
| 363 | goto leave; |
| 364 | } |
| 365 | |
| 366 | info->sectors = ((u32)(reply[117]) << 24) | |
| 367 | ((u32)(reply[116]) << 16) | |
| 368 | ((u32)(reply[115]) << 8) | |
| 369 | ((u32)(reply[114]) ); |
| 370 | |
| 371 | rc = USB_STOR_TRANSPORT_GOOD; |
| 372 | |
| 373 | leave: |
| 374 | kfree(reply); |
| 375 | return rc; |
| 376 | } |
| 377 | |
| 378 | static int jumpshot_handle_mode_sense(struct us_data *us, |
| 379 | struct scsi_cmnd * srb, |
| 380 | int sense_6) |
| 381 | { |
| 382 | static unsigned char rw_err_page[12] = { |
| 383 | 0x1, 0xA, 0x21, 1, 0, 0, 0, 0, 1, 0, 0, 0 |
| 384 | }; |
| 385 | static unsigned char cache_page[12] = { |
| 386 | 0x8, 0xA, 0x1, 0, 0, 0, 0, 0, 0, 0, 0, 0 |
| 387 | }; |
| 388 | static unsigned char rbac_page[12] = { |
| 389 | 0x1B, 0xA, 0, 0x81, 0, 0, 0, 0, 0, 0, 0, 0 |
| 390 | }; |
| 391 | static unsigned char timer_page[8] = { |
| 392 | 0x1C, 0x6, 0, 0, 0, 0 |
| 393 | }; |
| 394 | unsigned char pc, page_code; |
| 395 | unsigned int i = 0; |
| 396 | struct jumpshot_info *info = (struct jumpshot_info *) (us->extra); |
| 397 | unsigned char *ptr = us->iobuf; |
| 398 | |
| 399 | pc = srb->cmnd[2] >> 6; |
| 400 | page_code = srb->cmnd[2] & 0x3F; |
| 401 | |
| 402 | switch (pc) { |
| 403 | case 0x0: |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 404 | usb_stor_dbg(us, "Current values\n"); |
| 405 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 406 | case 0x1: |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 407 | usb_stor_dbg(us, "Changeable values\n"); |
| 408 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | case 0x2: |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 410 | usb_stor_dbg(us, "Default values\n"); |
| 411 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 412 | case 0x3: |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 413 | usb_stor_dbg(us, "Saves values\n"); |
| 414 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | } |
| 416 | |
| 417 | memset(ptr, 0, 8); |
| 418 | if (sense_6) { |
| 419 | ptr[2] = 0x00; // WP enable: 0x80 |
| 420 | i = 4; |
| 421 | } else { |
| 422 | ptr[3] = 0x00; // WP enable: 0x80 |
| 423 | i = 8; |
| 424 | } |
| 425 | |
| 426 | switch (page_code) { |
| 427 | case 0x0: |
| 428 | // vendor-specific mode |
| 429 | info->sense_key = 0x05; |
| 430 | info->sense_asc = 0x24; |
| 431 | info->sense_ascq = 0x00; |
| 432 | return USB_STOR_TRANSPORT_FAILED; |
| 433 | |
| 434 | case 0x1: |
| 435 | memcpy(ptr + i, rw_err_page, sizeof(rw_err_page)); |
| 436 | i += sizeof(rw_err_page); |
| 437 | break; |
| 438 | |
| 439 | case 0x8: |
| 440 | memcpy(ptr + i, cache_page, sizeof(cache_page)); |
| 441 | i += sizeof(cache_page); |
| 442 | break; |
| 443 | |
| 444 | case 0x1B: |
| 445 | memcpy(ptr + i, rbac_page, sizeof(rbac_page)); |
| 446 | i += sizeof(rbac_page); |
| 447 | break; |
| 448 | |
| 449 | case 0x1C: |
| 450 | memcpy(ptr + i, timer_page, sizeof(timer_page)); |
| 451 | i += sizeof(timer_page); |
| 452 | break; |
| 453 | |
| 454 | case 0x3F: |
| 455 | memcpy(ptr + i, timer_page, sizeof(timer_page)); |
| 456 | i += sizeof(timer_page); |
| 457 | memcpy(ptr + i, rbac_page, sizeof(rbac_page)); |
| 458 | i += sizeof(rbac_page); |
| 459 | memcpy(ptr + i, cache_page, sizeof(cache_page)); |
| 460 | i += sizeof(cache_page); |
| 461 | memcpy(ptr + i, rw_err_page, sizeof(rw_err_page)); |
| 462 | i += sizeof(rw_err_page); |
| 463 | break; |
| 464 | } |
| 465 | |
| 466 | if (sense_6) |
| 467 | ptr[0] = i - 1; |
| 468 | else |
| 469 | ((__be16 *) ptr)[0] = cpu_to_be16(i - 2); |
| 470 | usb_stor_set_xfer_buf(ptr, i, srb); |
| 471 | |
| 472 | return USB_STOR_TRANSPORT_GOOD; |
| 473 | } |
| 474 | |
| 475 | |
| 476 | static void jumpshot_info_destructor(void *extra) |
| 477 | { |
| 478 | // this routine is a placeholder... |
| 479 | // currently, we don't allocate any extra blocks so we're okay |
| 480 | } |
| 481 | |
| 482 | |
| 483 | |
| 484 | // Transport for the Lexar 'Jumpshot' |
| 485 | // |
Alan Stern | a9fb6d0 | 2009-02-12 14:48:19 -0500 | [diff] [blame] | 486 | static int jumpshot_transport(struct scsi_cmnd *srb, struct us_data *us) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 487 | { |
| 488 | struct jumpshot_info *info; |
| 489 | int rc; |
| 490 | unsigned long block, blocks; |
| 491 | unsigned char *ptr = us->iobuf; |
| 492 | static unsigned char inquiry_response[8] = { |
| 493 | 0x00, 0x80, 0x00, 0x01, 0x1F, 0x00, 0x00, 0x00 |
| 494 | }; |
| 495 | |
| 496 | if (!us->extra) { |
Oliver Neukum | 887c256 | 2006-01-08 12:33:45 +0100 | [diff] [blame] | 497 | us->extra = kzalloc(sizeof(struct jumpshot_info), GFP_NOIO); |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 498 | if (!us->extra) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 499 | return USB_STOR_TRANSPORT_ERROR; |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 500 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 501 | us->extra_destructor = jumpshot_info_destructor; |
| 502 | } |
| 503 | |
| 504 | info = (struct jumpshot_info *) (us->extra); |
| 505 | |
| 506 | if (srb->cmnd[0] == INQUIRY) { |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 507 | usb_stor_dbg(us, "INQUIRY - Returning bogus response\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 508 | memcpy(ptr, inquiry_response, sizeof(inquiry_response)); |
| 509 | fill_inquiry_response(us, ptr, 36); |
| 510 | return USB_STOR_TRANSPORT_GOOD; |
| 511 | } |
| 512 | |
| 513 | if (srb->cmnd[0] == READ_CAPACITY) { |
| 514 | info->ssize = 0x200; // hard coded 512 byte sectors as per ATA spec |
| 515 | |
| 516 | rc = jumpshot_get_status(us); |
| 517 | if (rc != USB_STOR_TRANSPORT_GOOD) |
| 518 | return rc; |
| 519 | |
| 520 | rc = jumpshot_id_device(us, info); |
| 521 | if (rc != USB_STOR_TRANSPORT_GOOD) |
| 522 | return rc; |
| 523 | |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 524 | usb_stor_dbg(us, "READ_CAPACITY: %ld sectors, %ld bytes per sector\n", |
| 525 | info->sectors, info->ssize); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | |
| 527 | // build the reply |
| 528 | // |
| 529 | ((__be32 *) ptr)[0] = cpu_to_be32(info->sectors - 1); |
| 530 | ((__be32 *) ptr)[1] = cpu_to_be32(info->ssize); |
| 531 | usb_stor_set_xfer_buf(ptr, 8, srb); |
| 532 | |
| 533 | return USB_STOR_TRANSPORT_GOOD; |
| 534 | } |
| 535 | |
| 536 | if (srb->cmnd[0] == MODE_SELECT_10) { |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 537 | usb_stor_dbg(us, "Gah! MODE_SELECT_10\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | return USB_STOR_TRANSPORT_ERROR; |
| 539 | } |
| 540 | |
| 541 | if (srb->cmnd[0] == READ_10) { |
| 542 | block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) | |
| 543 | ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5])); |
| 544 | |
| 545 | blocks = ((u32)(srb->cmnd[7]) << 8) | ((u32)(srb->cmnd[8])); |
| 546 | |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 547 | usb_stor_dbg(us, "READ_10: read block 0x%04lx count %ld\n", |
| 548 | block, blocks); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 549 | return jumpshot_read_data(us, info, block, blocks); |
| 550 | } |
| 551 | |
| 552 | if (srb->cmnd[0] == READ_12) { |
| 553 | // I don't think we'll ever see a READ_12 but support it anyway... |
| 554 | // |
| 555 | block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) | |
| 556 | ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5])); |
| 557 | |
| 558 | blocks = ((u32)(srb->cmnd[6]) << 24) | ((u32)(srb->cmnd[7]) << 16) | |
| 559 | ((u32)(srb->cmnd[8]) << 8) | ((u32)(srb->cmnd[9])); |
| 560 | |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 561 | usb_stor_dbg(us, "READ_12: read block 0x%04lx count %ld\n", |
| 562 | block, blocks); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 563 | return jumpshot_read_data(us, info, block, blocks); |
| 564 | } |
| 565 | |
| 566 | if (srb->cmnd[0] == WRITE_10) { |
| 567 | block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) | |
| 568 | ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5])); |
| 569 | |
| 570 | blocks = ((u32)(srb->cmnd[7]) << 8) | ((u32)(srb->cmnd[8])); |
| 571 | |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 572 | usb_stor_dbg(us, "WRITE_10: write block 0x%04lx count %ld\n", |
| 573 | block, blocks); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | return jumpshot_write_data(us, info, block, blocks); |
| 575 | } |
| 576 | |
| 577 | if (srb->cmnd[0] == WRITE_12) { |
| 578 | // I don't think we'll ever see a WRITE_12 but support it anyway... |
| 579 | // |
| 580 | block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) | |
| 581 | ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5])); |
| 582 | |
| 583 | blocks = ((u32)(srb->cmnd[6]) << 24) | ((u32)(srb->cmnd[7]) << 16) | |
| 584 | ((u32)(srb->cmnd[8]) << 8) | ((u32)(srb->cmnd[9])); |
| 585 | |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 586 | usb_stor_dbg(us, "WRITE_12: write block 0x%04lx count %ld\n", |
| 587 | block, blocks); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 588 | return jumpshot_write_data(us, info, block, blocks); |
| 589 | } |
| 590 | |
| 591 | |
| 592 | if (srb->cmnd[0] == TEST_UNIT_READY) { |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 593 | usb_stor_dbg(us, "TEST_UNIT_READY\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 594 | return jumpshot_get_status(us); |
| 595 | } |
| 596 | |
| 597 | if (srb->cmnd[0] == REQUEST_SENSE) { |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 598 | usb_stor_dbg(us, "REQUEST_SENSE\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 599 | |
| 600 | memset(ptr, 0, 18); |
| 601 | ptr[0] = 0xF0; |
| 602 | ptr[2] = info->sense_key; |
| 603 | ptr[7] = 11; |
| 604 | ptr[12] = info->sense_asc; |
| 605 | ptr[13] = info->sense_ascq; |
| 606 | usb_stor_set_xfer_buf(ptr, 18, srb); |
| 607 | |
| 608 | return USB_STOR_TRANSPORT_GOOD; |
| 609 | } |
| 610 | |
| 611 | if (srb->cmnd[0] == MODE_SENSE) { |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 612 | usb_stor_dbg(us, "MODE_SENSE_6 detected\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 613 | return jumpshot_handle_mode_sense(us, srb, 1); |
| 614 | } |
| 615 | |
| 616 | if (srb->cmnd[0] == MODE_SENSE_10) { |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 617 | usb_stor_dbg(us, "MODE_SENSE_10 detected\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 618 | return jumpshot_handle_mode_sense(us, srb, 0); |
| 619 | } |
| 620 | |
| 621 | if (srb->cmnd[0] == ALLOW_MEDIUM_REMOVAL) { |
Felipe Balbi | f0183a3 | 2016-04-18 13:09:11 +0300 | [diff] [blame] | 622 | /* |
| 623 | * sure. whatever. not like we can stop the user from popping |
| 624 | * the media out of the device (no locking doors, etc) |
| 625 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 626 | return USB_STOR_TRANSPORT_GOOD; |
| 627 | } |
| 628 | |
| 629 | if (srb->cmnd[0] == START_STOP) { |
Felipe Balbi | f0183a3 | 2016-04-18 13:09:11 +0300 | [diff] [blame] | 630 | /* |
| 631 | * this is used by sd.c'check_scsidisk_media_change to detect |
| 632 | * media change |
| 633 | */ |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 634 | usb_stor_dbg(us, "START_STOP\n"); |
Felipe Balbi | f0183a3 | 2016-04-18 13:09:11 +0300 | [diff] [blame] | 635 | /* |
| 636 | * the first jumpshot_id_device after a media change returns |
| 637 | * an error (determined experimentally) |
| 638 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 639 | rc = jumpshot_id_device(us, info); |
| 640 | if (rc == USB_STOR_TRANSPORT_GOOD) { |
| 641 | info->sense_key = NO_SENSE; |
| 642 | srb->result = SUCCESS; |
| 643 | } else { |
| 644 | info->sense_key = UNIT_ATTENTION; |
| 645 | srb->result = SAM_STAT_CHECK_CONDITION; |
| 646 | } |
| 647 | return rc; |
| 648 | } |
| 649 | |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 650 | usb_stor_dbg(us, "Gah! Unknown command: %d (0x%x)\n", |
| 651 | srb->cmnd[0], srb->cmnd[0]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 652 | info->sense_key = 0x05; |
| 653 | info->sense_asc = 0x20; |
| 654 | info->sense_ascq = 0x00; |
| 655 | return USB_STOR_TRANSPORT_FAILED; |
| 656 | } |
Alan Stern | a9fb6d0 | 2009-02-12 14:48:19 -0500 | [diff] [blame] | 657 | |
Akinobu Mita | aa519be | 2015-05-06 18:24:21 +0900 | [diff] [blame] | 658 | static struct scsi_host_template jumpshot_host_template; |
| 659 | |
Alan Stern | a9fb6d0 | 2009-02-12 14:48:19 -0500 | [diff] [blame] | 660 | static int jumpshot_probe(struct usb_interface *intf, |
| 661 | const struct usb_device_id *id) |
| 662 | { |
| 663 | struct us_data *us; |
| 664 | int result; |
| 665 | |
| 666 | result = usb_stor_probe1(&us, intf, id, |
Akinobu Mita | aa519be | 2015-05-06 18:24:21 +0900 | [diff] [blame] | 667 | (id - jumpshot_usb_ids) + jumpshot_unusual_dev_list, |
| 668 | &jumpshot_host_template); |
Alan Stern | a9fb6d0 | 2009-02-12 14:48:19 -0500 | [diff] [blame] | 669 | if (result) |
| 670 | return result; |
| 671 | |
| 672 | us->transport_name = "Lexar Jumpshot Control/Bulk"; |
| 673 | us->transport = jumpshot_transport; |
| 674 | us->transport_reset = usb_stor_Bulk_reset; |
| 675 | us->max_lun = 1; |
| 676 | |
| 677 | result = usb_stor_probe2(us); |
| 678 | return result; |
| 679 | } |
| 680 | |
| 681 | static struct usb_driver jumpshot_driver = { |
Akinobu Mita | aa519be | 2015-05-06 18:24:21 +0900 | [diff] [blame] | 682 | .name = DRV_NAME, |
Alan Stern | a9fb6d0 | 2009-02-12 14:48:19 -0500 | [diff] [blame] | 683 | .probe = jumpshot_probe, |
| 684 | .disconnect = usb_stor_disconnect, |
| 685 | .suspend = usb_stor_suspend, |
| 686 | .resume = usb_stor_resume, |
| 687 | .reset_resume = usb_stor_reset_resume, |
| 688 | .pre_reset = usb_stor_pre_reset, |
| 689 | .post_reset = usb_stor_post_reset, |
| 690 | .id_table = jumpshot_usb_ids, |
| 691 | .soft_unbind = 1, |
Huajun Li | e73b2db | 2012-01-14 10:15:21 +0800 | [diff] [blame] | 692 | .no_dynamic_id = 1, |
Alan Stern | a9fb6d0 | 2009-02-12 14:48:19 -0500 | [diff] [blame] | 693 | }; |
| 694 | |
Akinobu Mita | aa519be | 2015-05-06 18:24:21 +0900 | [diff] [blame] | 695 | module_usb_stor_driver(jumpshot_driver, jumpshot_host_template, DRV_NAME); |