Felipe Balbi | f0183a3 | 2016-04-18 13:09:11 +0300 | [diff] [blame] | 1 | /* |
| 2 | * Driver for SanDisk SDDR-55 SmartMedia 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 | * SDDR55 driver v0.1: |
| 5 | * |
| 6 | * First release |
| 7 | * |
| 8 | * Current development and maintenance by: |
| 9 | * (c) 2002 Simon Munton |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify it |
| 12 | * under the terms of the GNU General Public License as published by the |
| 13 | * Free Software Foundation; either version 2, or (at your option) any |
| 14 | * later version. |
| 15 | * |
| 16 | * This program is distributed in the hope that it will be useful, but |
| 17 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 19 | * General Public License for more details. |
| 20 | * |
| 21 | * You should have received a copy of the GNU General Public License along |
| 22 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 23 | * 675 Mass Ave, Cambridge, MA 02139, USA. |
| 24 | */ |
| 25 | |
| 26 | #include <linux/jiffies.h> |
| 27 | #include <linux/errno.h> |
Alan Stern | 70fcc00 | 2009-02-12 14:47:59 -0500 | [diff] [blame] | 28 | #include <linux/module.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | #include <linux/slab.h> |
| 30 | |
| 31 | #include <scsi/scsi.h> |
| 32 | #include <scsi/scsi_cmnd.h> |
| 33 | |
| 34 | #include "usb.h" |
| 35 | #include "transport.h" |
| 36 | #include "protocol.h" |
| 37 | #include "debug.h" |
Akinobu Mita | aa519be | 2015-05-06 18:24:21 +0900 | [diff] [blame] | 38 | #include "scsiglue.h" |
| 39 | |
| 40 | #define DRV_NAME "ums-sddr55" |
Alan Stern | 70fcc00 | 2009-02-12 14:47:59 -0500 | [diff] [blame] | 41 | |
Maciej Grela | 4246b06 | 2009-02-28 12:39:20 -0800 | [diff] [blame] | 42 | MODULE_DESCRIPTION("Driver for SanDisk SDDR-55 SmartMedia reader"); |
| 43 | MODULE_AUTHOR("Simon Munton"); |
| 44 | MODULE_LICENSE("GPL"); |
Alan Stern | 70fcc00 | 2009-02-12 14:47:59 -0500 | [diff] [blame] | 45 | |
| 46 | /* |
| 47 | * The table of devices |
| 48 | */ |
| 49 | #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \ |
| 50 | vendorName, productName, useProtocol, useTransport, \ |
| 51 | initFunction, flags) \ |
| 52 | { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ |
Sebastian Andrzej Siewior | f61870e | 2012-08-28 22:37:13 +0200 | [diff] [blame] | 53 | .driver_info = (flags) } |
Alan Stern | 70fcc00 | 2009-02-12 14:47:59 -0500 | [diff] [blame] | 54 | |
Felipe Balbi | 566b8bb | 2011-11-15 09:53:39 +0200 | [diff] [blame] | 55 | static struct usb_device_id sddr55_usb_ids[] = { |
Alan Stern | 70fcc00 | 2009-02-12 14:47:59 -0500 | [diff] [blame] | 56 | # include "unusual_sddr55.h" |
| 57 | { } /* Terminating entry */ |
| 58 | }; |
| 59 | MODULE_DEVICE_TABLE(usb, sddr55_usb_ids); |
| 60 | |
| 61 | #undef UNUSUAL_DEV |
| 62 | |
| 63 | /* |
| 64 | * The flags table |
| 65 | */ |
| 66 | #define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \ |
| 67 | vendor_name, product_name, use_protocol, use_transport, \ |
| 68 | init_function, Flags) \ |
| 69 | { \ |
| 70 | .vendorName = vendor_name, \ |
| 71 | .productName = product_name, \ |
| 72 | .useProtocol = use_protocol, \ |
| 73 | .useTransport = use_transport, \ |
| 74 | .initFunction = init_function, \ |
| 75 | } |
| 76 | |
| 77 | static struct us_unusual_dev sddr55_unusual_dev_list[] = { |
| 78 | # include "unusual_sddr55.h" |
| 79 | { } /* Terminating entry */ |
| 80 | }; |
| 81 | |
| 82 | #undef UNUSUAL_DEV |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | |
| 84 | |
| 85 | #define short_pack(lsb,msb) ( ((u16)(lsb)) | ( ((u16)(msb))<<8 ) ) |
| 86 | #define LSB_of(s) ((s)&0xFF) |
| 87 | #define MSB_of(s) ((s)>>8) |
| 88 | #define PAGESIZE 512 |
| 89 | |
| 90 | #define set_sense_info(sk, asc, ascq) \ |
| 91 | do { \ |
| 92 | info->sense_data[2] = sk; \ |
| 93 | info->sense_data[12] = asc; \ |
| 94 | info->sense_data[13] = ascq; \ |
| 95 | } while (0) |
| 96 | |
| 97 | |
| 98 | struct sddr55_card_info { |
| 99 | unsigned long capacity; /* Size of card in bytes */ |
| 100 | int max_log_blks; /* maximum number of logical blocks */ |
| 101 | int pageshift; /* log2 of pagesize */ |
| 102 | int smallpageshift; /* 1 if pagesize == 256 */ |
| 103 | int blocksize; /* Size of block in pages */ |
| 104 | int blockshift; /* log2 of blocksize */ |
| 105 | int blockmask; /* 2^blockshift - 1 */ |
| 106 | int read_only; /* non zero if card is write protected */ |
| 107 | int force_read_only; /* non zero if we find a map error*/ |
| 108 | int *lba_to_pba; /* logical to physical map */ |
| 109 | int *pba_to_lba; /* physical to logical map */ |
| 110 | int fatal_error; /* set if we detect something nasty */ |
| 111 | unsigned long last_access; /* number of jiffies since we last talked to device */ |
| 112 | unsigned char sense_data[18]; |
| 113 | }; |
| 114 | |
| 115 | |
| 116 | #define NOT_ALLOCATED 0xffffffff |
| 117 | #define BAD_BLOCK 0xffff |
| 118 | #define CIS_BLOCK 0x400 |
| 119 | #define UNUSED_BLOCK 0x3ff |
| 120 | |
| 121 | static int |
| 122 | sddr55_bulk_transport(struct us_data *us, int direction, |
| 123 | unsigned char *data, unsigned int len) { |
| 124 | struct sddr55_card_info *info = (struct sddr55_card_info *)us->extra; |
| 125 | unsigned int pipe = (direction == DMA_FROM_DEVICE) ? |
| 126 | us->recv_bulk_pipe : us->send_bulk_pipe; |
| 127 | |
| 128 | if (!len) |
| 129 | return USB_STOR_XFER_GOOD; |
| 130 | info->last_access = jiffies; |
| 131 | return usb_stor_bulk_transfer_buf(us, pipe, data, len, NULL); |
| 132 | } |
| 133 | |
Felipe Balbi | f0183a3 | 2016-04-18 13:09:11 +0300 | [diff] [blame] | 134 | /* |
| 135 | * check if card inserted, if there is, update read_only status |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 136 | * return non zero if no card |
| 137 | */ |
| 138 | |
| 139 | static int sddr55_status(struct us_data *us) |
| 140 | { |
| 141 | int result; |
| 142 | unsigned char *command = us->iobuf; |
| 143 | unsigned char *status = us->iobuf; |
| 144 | struct sddr55_card_info *info = (struct sddr55_card_info *)us->extra; |
| 145 | |
| 146 | /* send command */ |
| 147 | memset(command, 0, 8); |
| 148 | command[5] = 0xB0; |
| 149 | command[7] = 0x80; |
| 150 | result = sddr55_bulk_transport(us, |
| 151 | DMA_TO_DEVICE, command, 8); |
| 152 | |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 153 | usb_stor_dbg(us, "Result for send_command in status %d\n", result); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | |
| 155 | if (result != USB_STOR_XFER_GOOD) { |
| 156 | set_sense_info (4, 0, 0); /* hardware error */ |
| 157 | return USB_STOR_TRANSPORT_ERROR; |
| 158 | } |
| 159 | |
| 160 | result = sddr55_bulk_transport(us, |
| 161 | DMA_FROM_DEVICE, status, 4); |
| 162 | |
| 163 | /* expect to get short transfer if no card fitted */ |
| 164 | if (result == USB_STOR_XFER_SHORT || result == USB_STOR_XFER_STALLED) { |
| 165 | /* had a short transfer, no card inserted, free map memory */ |
Jesper Juhl | 1bc3c9e | 2005-04-18 17:39:34 -0700 | [diff] [blame] | 166 | kfree(info->lba_to_pba); |
| 167 | kfree(info->pba_to_lba); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | info->lba_to_pba = NULL; |
| 169 | info->pba_to_lba = NULL; |
| 170 | |
| 171 | info->fatal_error = 0; |
| 172 | info->force_read_only = 0; |
| 173 | |
| 174 | set_sense_info (2, 0x3a, 0); /* not ready, medium not present */ |
| 175 | return USB_STOR_TRANSPORT_FAILED; |
| 176 | } |
| 177 | |
| 178 | if (result != USB_STOR_XFER_GOOD) { |
| 179 | set_sense_info (4, 0, 0); /* hardware error */ |
| 180 | return USB_STOR_TRANSPORT_FAILED; |
| 181 | } |
| 182 | |
| 183 | /* check write protect status */ |
| 184 | info->read_only = (status[0] & 0x20); |
| 185 | |
| 186 | /* now read status */ |
| 187 | result = sddr55_bulk_transport(us, |
| 188 | DMA_FROM_DEVICE, status, 2); |
| 189 | |
| 190 | if (result != USB_STOR_XFER_GOOD) { |
| 191 | set_sense_info (4, 0, 0); /* hardware error */ |
| 192 | } |
| 193 | |
| 194 | return (result == USB_STOR_XFER_GOOD ? |
| 195 | USB_STOR_TRANSPORT_GOOD : USB_STOR_TRANSPORT_FAILED); |
| 196 | } |
| 197 | |
| 198 | |
| 199 | static int sddr55_read_data(struct us_data *us, |
| 200 | unsigned int lba, |
| 201 | unsigned int page, |
| 202 | unsigned short sectors) { |
| 203 | |
| 204 | int result = USB_STOR_TRANSPORT_GOOD; |
| 205 | unsigned char *command = us->iobuf; |
| 206 | unsigned char *status = us->iobuf; |
| 207 | struct sddr55_card_info *info = (struct sddr55_card_info *)us->extra; |
| 208 | unsigned char *buffer; |
| 209 | |
| 210 | unsigned int pba; |
| 211 | unsigned long address; |
| 212 | |
| 213 | unsigned short pages; |
Jens Axboe | 1f6f31a | 2007-05-11 12:33:09 +0200 | [diff] [blame] | 214 | unsigned int len, offset; |
| 215 | struct scatterlist *sg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | |
| 217 | // Since we only read in one block at a time, we have to create |
| 218 | // a bounce buffer and move the data a piece at a time between the |
| 219 | // bounce buffer and the actual transfer buffer. |
| 220 | |
| 221 | len = min((unsigned int) sectors, (unsigned int) info->blocksize >> |
| 222 | info->smallpageshift) * PAGESIZE; |
| 223 | buffer = kmalloc(len, GFP_NOIO); |
| 224 | if (buffer == NULL) |
| 225 | return USB_STOR_TRANSPORT_ERROR; /* out of memory */ |
Jens Axboe | 1f6f31a | 2007-05-11 12:33:09 +0200 | [diff] [blame] | 226 | offset = 0; |
| 227 | sg = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | |
| 229 | while (sectors>0) { |
| 230 | |
| 231 | /* have we got to end? */ |
| 232 | if (lba >= info->max_log_blks) |
| 233 | break; |
| 234 | |
| 235 | pba = info->lba_to_pba[lba]; |
| 236 | |
| 237 | // Read as many sectors as possible in this block |
| 238 | |
| 239 | pages = min((unsigned int) sectors << info->smallpageshift, |
| 240 | info->blocksize - page); |
| 241 | len = pages << info->pageshift; |
| 242 | |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 243 | usb_stor_dbg(us, "Read %02X pages, from PBA %04X (LBA %04X) page %02X\n", |
| 244 | pages, pba, lba, page); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | |
| 246 | if (pba == NOT_ALLOCATED) { |
| 247 | /* no pba for this lba, fill with zeroes */ |
| 248 | memset (buffer, 0, len); |
| 249 | } else { |
| 250 | |
| 251 | address = (pba << info->blockshift) + page; |
| 252 | |
| 253 | command[0] = 0; |
| 254 | command[1] = LSB_of(address>>16); |
| 255 | command[2] = LSB_of(address>>8); |
| 256 | command[3] = LSB_of(address); |
| 257 | |
| 258 | command[4] = 0; |
| 259 | command[5] = 0xB0; |
| 260 | command[6] = LSB_of(pages << (1 - info->smallpageshift)); |
| 261 | command[7] = 0x85; |
| 262 | |
| 263 | /* send command */ |
| 264 | result = sddr55_bulk_transport(us, |
| 265 | DMA_TO_DEVICE, command, 8); |
| 266 | |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 267 | usb_stor_dbg(us, "Result for send_command in read_data %d\n", |
| 268 | result); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 269 | |
| 270 | if (result != USB_STOR_XFER_GOOD) { |
| 271 | result = USB_STOR_TRANSPORT_ERROR; |
| 272 | goto leave; |
| 273 | } |
| 274 | |
| 275 | /* read data */ |
| 276 | result = sddr55_bulk_transport(us, |
| 277 | DMA_FROM_DEVICE, buffer, len); |
| 278 | |
| 279 | if (result != USB_STOR_XFER_GOOD) { |
| 280 | result = USB_STOR_TRANSPORT_ERROR; |
| 281 | goto leave; |
| 282 | } |
| 283 | |
| 284 | /* now read status */ |
| 285 | result = sddr55_bulk_transport(us, |
| 286 | DMA_FROM_DEVICE, status, 2); |
| 287 | |
| 288 | if (result != USB_STOR_XFER_GOOD) { |
| 289 | result = USB_STOR_TRANSPORT_ERROR; |
| 290 | goto leave; |
| 291 | } |
| 292 | |
| 293 | /* check status for error */ |
| 294 | if (status[0] == 0xff && status[1] == 0x4) { |
| 295 | set_sense_info (3, 0x11, 0); |
| 296 | result = USB_STOR_TRANSPORT_FAILED; |
| 297 | goto leave; |
| 298 | } |
| 299 | } |
| 300 | |
| 301 | // Store the data in the transfer buffer |
| 302 | usb_stor_access_xfer_buf(buffer, len, us->srb, |
Jens Axboe | 1f6f31a | 2007-05-11 12:33:09 +0200 | [diff] [blame] | 303 | &sg, &offset, TO_XFER_BUF); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 304 | |
| 305 | page = 0; |
| 306 | lba++; |
| 307 | sectors -= pages >> info->smallpageshift; |
| 308 | } |
| 309 | |
| 310 | result = USB_STOR_TRANSPORT_GOOD; |
| 311 | |
| 312 | leave: |
| 313 | kfree(buffer); |
| 314 | |
| 315 | return result; |
| 316 | } |
| 317 | |
| 318 | static int sddr55_write_data(struct us_data *us, |
| 319 | unsigned int lba, |
| 320 | unsigned int page, |
| 321 | unsigned short sectors) { |
| 322 | |
| 323 | int result = USB_STOR_TRANSPORT_GOOD; |
| 324 | unsigned char *command = us->iobuf; |
| 325 | unsigned char *status = us->iobuf; |
| 326 | struct sddr55_card_info *info = (struct sddr55_card_info *)us->extra; |
| 327 | unsigned char *buffer; |
| 328 | |
| 329 | unsigned int pba; |
| 330 | unsigned int new_pba; |
| 331 | unsigned long address; |
| 332 | |
| 333 | unsigned short pages; |
| 334 | int i; |
Jens Axboe | 1f6f31a | 2007-05-11 12:33:09 +0200 | [diff] [blame] | 335 | unsigned int len, offset; |
| 336 | struct scatterlist *sg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | |
| 338 | /* check if we are allowed to write */ |
| 339 | if (info->read_only || info->force_read_only) { |
| 340 | set_sense_info (7, 0x27, 0); /* read only */ |
| 341 | return USB_STOR_TRANSPORT_FAILED; |
| 342 | } |
| 343 | |
| 344 | // Since we only write one block at a time, we have to create |
| 345 | // a bounce buffer and move the data a piece at a time between the |
| 346 | // bounce buffer and the actual transfer buffer. |
| 347 | |
| 348 | len = min((unsigned int) sectors, (unsigned int) info->blocksize >> |
| 349 | info->smallpageshift) * PAGESIZE; |
| 350 | buffer = kmalloc(len, GFP_NOIO); |
| 351 | if (buffer == NULL) |
| 352 | return USB_STOR_TRANSPORT_ERROR; |
Jens Axboe | 1f6f31a | 2007-05-11 12:33:09 +0200 | [diff] [blame] | 353 | offset = 0; |
| 354 | sg = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | |
| 356 | while (sectors > 0) { |
| 357 | |
| 358 | /* have we got to end? */ |
| 359 | if (lba >= info->max_log_blks) |
| 360 | break; |
| 361 | |
| 362 | pba = info->lba_to_pba[lba]; |
| 363 | |
| 364 | // Write as many sectors as possible in this block |
| 365 | |
| 366 | pages = min((unsigned int) sectors << info->smallpageshift, |
| 367 | info->blocksize - page); |
| 368 | len = pages << info->pageshift; |
| 369 | |
| 370 | // Get the data from the transfer buffer |
| 371 | usb_stor_access_xfer_buf(buffer, len, us->srb, |
Jens Axboe | 1f6f31a | 2007-05-11 12:33:09 +0200 | [diff] [blame] | 372 | &sg, &offset, FROM_XFER_BUF); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 374 | usb_stor_dbg(us, "Write %02X pages, to PBA %04X (LBA %04X) page %02X\n", |
| 375 | pages, pba, lba, page); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | |
| 377 | command[4] = 0; |
| 378 | |
| 379 | if (pba == NOT_ALLOCATED) { |
| 380 | /* no pba allocated for this lba, find a free pba to use */ |
| 381 | |
| 382 | int max_pba = (info->max_log_blks / 250 ) * 256; |
| 383 | int found_count = 0; |
| 384 | int found_pba = -1; |
| 385 | |
| 386 | /* set pba to first block in zone lba is in */ |
| 387 | pba = (lba / 1000) * 1024; |
| 388 | |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 389 | usb_stor_dbg(us, "No PBA for LBA %04X\n", lba); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | |
| 391 | if (max_pba > 1024) |
| 392 | max_pba = 1024; |
| 393 | |
| 394 | /* |
| 395 | * Scan through the map looking for an unused block |
| 396 | * leave 16 unused blocks at start (or as many as |
| 397 | * possible) since the sddr55 seems to reuse a used |
| 398 | * block when it shouldn't if we don't leave space. |
| 399 | */ |
| 400 | for (i = 0; i < max_pba; i++, pba++) { |
| 401 | if (info->pba_to_lba[pba] == UNUSED_BLOCK) { |
| 402 | found_pba = pba; |
| 403 | if (found_count++ > 16) |
| 404 | break; |
| 405 | } |
| 406 | } |
| 407 | |
| 408 | pba = found_pba; |
| 409 | |
| 410 | if (pba == -1) { |
| 411 | /* oh dear */ |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 412 | usb_stor_dbg(us, "Couldn't find unallocated block\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 413 | |
| 414 | set_sense_info (3, 0x31, 0); /* medium error */ |
| 415 | result = USB_STOR_TRANSPORT_FAILED; |
| 416 | goto leave; |
| 417 | } |
| 418 | |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 419 | usb_stor_dbg(us, "Allocating PBA %04X for LBA %04X\n", |
| 420 | pba, lba); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 421 | |
| 422 | /* set writing to unallocated block flag */ |
| 423 | command[4] = 0x40; |
| 424 | } |
| 425 | |
| 426 | address = (pba << info->blockshift) + page; |
| 427 | |
| 428 | command[1] = LSB_of(address>>16); |
| 429 | command[2] = LSB_of(address>>8); |
| 430 | command[3] = LSB_of(address); |
| 431 | |
| 432 | /* set the lba into the command, modulo 1000 */ |
| 433 | command[0] = LSB_of(lba % 1000); |
| 434 | command[6] = MSB_of(lba % 1000); |
| 435 | |
| 436 | command[4] |= LSB_of(pages >> info->smallpageshift); |
| 437 | command[5] = 0xB0; |
| 438 | command[7] = 0x86; |
| 439 | |
| 440 | /* send command */ |
| 441 | result = sddr55_bulk_transport(us, |
| 442 | DMA_TO_DEVICE, command, 8); |
| 443 | |
| 444 | if (result != USB_STOR_XFER_GOOD) { |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 445 | usb_stor_dbg(us, "Result for send_command in write_data %d\n", |
| 446 | result); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 447 | |
| 448 | /* set_sense_info is superfluous here? */ |
| 449 | set_sense_info (3, 0x3, 0);/* peripheral write error */ |
| 450 | result = USB_STOR_TRANSPORT_FAILED; |
| 451 | goto leave; |
| 452 | } |
| 453 | |
| 454 | /* send the data */ |
| 455 | result = sddr55_bulk_transport(us, |
| 456 | DMA_TO_DEVICE, buffer, len); |
| 457 | |
| 458 | if (result != USB_STOR_XFER_GOOD) { |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 459 | usb_stor_dbg(us, "Result for send_data in write_data %d\n", |
| 460 | result); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | |
| 462 | /* set_sense_info is superfluous here? */ |
| 463 | set_sense_info (3, 0x3, 0);/* peripheral write error */ |
| 464 | result = USB_STOR_TRANSPORT_FAILED; |
| 465 | goto leave; |
| 466 | } |
| 467 | |
| 468 | /* now read status */ |
| 469 | result = sddr55_bulk_transport(us, DMA_FROM_DEVICE, status, 6); |
| 470 | |
| 471 | if (result != USB_STOR_XFER_GOOD) { |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 472 | usb_stor_dbg(us, "Result for get_status in write_data %d\n", |
| 473 | result); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 474 | |
| 475 | /* set_sense_info is superfluous here? */ |
| 476 | set_sense_info (3, 0x3, 0);/* peripheral write error */ |
| 477 | result = USB_STOR_TRANSPORT_FAILED; |
| 478 | goto leave; |
| 479 | } |
| 480 | |
| 481 | new_pba = (status[3] + (status[4] << 8) + (status[5] << 16)) |
| 482 | >> info->blockshift; |
| 483 | |
| 484 | /* check status for error */ |
| 485 | if (status[0] == 0xff && status[1] == 0x4) { |
| 486 | info->pba_to_lba[new_pba] = BAD_BLOCK; |
| 487 | |
| 488 | set_sense_info (3, 0x0c, 0); |
| 489 | result = USB_STOR_TRANSPORT_FAILED; |
| 490 | goto leave; |
| 491 | } |
| 492 | |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 493 | usb_stor_dbg(us, "Updating maps for LBA %04X: old PBA %04X, new PBA %04X\n", |
| 494 | lba, pba, new_pba); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | |
| 496 | /* update the lba<->pba maps, note new_pba might be the same as pba */ |
| 497 | info->lba_to_pba[lba] = new_pba; |
| 498 | info->pba_to_lba[pba] = UNUSED_BLOCK; |
| 499 | |
| 500 | /* check that new_pba wasn't already being used */ |
| 501 | if (info->pba_to_lba[new_pba] != UNUSED_BLOCK) { |
| 502 | printk(KERN_ERR "sddr55 error: new PBA %04X already in use for LBA %04X\n", |
| 503 | new_pba, info->pba_to_lba[new_pba]); |
| 504 | info->fatal_error = 1; |
| 505 | set_sense_info (3, 0x31, 0); |
| 506 | result = USB_STOR_TRANSPORT_FAILED; |
| 507 | goto leave; |
| 508 | } |
| 509 | |
| 510 | /* update the pba<->lba maps for new_pba */ |
| 511 | info->pba_to_lba[new_pba] = lba % 1000; |
| 512 | |
| 513 | page = 0; |
| 514 | lba++; |
| 515 | sectors -= pages >> info->smallpageshift; |
| 516 | } |
| 517 | result = USB_STOR_TRANSPORT_GOOD; |
| 518 | |
| 519 | leave: |
| 520 | kfree(buffer); |
| 521 | return result; |
| 522 | } |
| 523 | |
| 524 | static int sddr55_read_deviceID(struct us_data *us, |
| 525 | unsigned char *manufacturerID, |
| 526 | unsigned char *deviceID) { |
| 527 | |
| 528 | int result; |
| 529 | unsigned char *command = us->iobuf; |
| 530 | unsigned char *content = us->iobuf; |
| 531 | |
| 532 | memset(command, 0, 8); |
| 533 | command[5] = 0xB0; |
| 534 | command[7] = 0x84; |
| 535 | result = sddr55_bulk_transport(us, DMA_TO_DEVICE, command, 8); |
| 536 | |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 537 | usb_stor_dbg(us, "Result of send_control for device ID is %d\n", |
| 538 | result); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 539 | |
| 540 | if (result != USB_STOR_XFER_GOOD) |
| 541 | return USB_STOR_TRANSPORT_ERROR; |
| 542 | |
| 543 | result = sddr55_bulk_transport(us, |
| 544 | DMA_FROM_DEVICE, content, 4); |
| 545 | |
| 546 | if (result != USB_STOR_XFER_GOOD) |
| 547 | return USB_STOR_TRANSPORT_ERROR; |
| 548 | |
| 549 | *manufacturerID = content[0]; |
| 550 | *deviceID = content[1]; |
| 551 | |
| 552 | if (content[0] != 0xff) { |
| 553 | result = sddr55_bulk_transport(us, |
| 554 | DMA_FROM_DEVICE, content, 2); |
| 555 | } |
| 556 | |
| 557 | return USB_STOR_TRANSPORT_GOOD; |
| 558 | } |
| 559 | |
| 560 | |
Alan Stern | 70fcc00 | 2009-02-12 14:47:59 -0500 | [diff] [blame] | 561 | static int sddr55_reset(struct us_data *us) |
| 562 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 563 | return 0; |
| 564 | } |
| 565 | |
| 566 | |
| 567 | static unsigned long sddr55_get_capacity(struct us_data *us) { |
| 568 | |
Andrew Morton | 8a20acc | 2008-03-04 15:25:08 -0800 | [diff] [blame] | 569 | unsigned char uninitialized_var(manufacturerID); |
| 570 | unsigned char uninitialized_var(deviceID); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 571 | int result; |
| 572 | struct sddr55_card_info *info = (struct sddr55_card_info *)us->extra; |
| 573 | |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 574 | usb_stor_dbg(us, "Reading capacity...\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 575 | |
| 576 | result = sddr55_read_deviceID(us, |
| 577 | &manufacturerID, |
| 578 | &deviceID); |
| 579 | |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 580 | usb_stor_dbg(us, "Result of read_deviceID is %d\n", result); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 581 | |
| 582 | if (result != USB_STOR_XFER_GOOD) |
| 583 | return 0; |
| 584 | |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 585 | usb_stor_dbg(us, "Device ID = %02X\n", deviceID); |
| 586 | usb_stor_dbg(us, "Manuf ID = %02X\n", manufacturerID); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | |
| 588 | info->pageshift = 9; |
| 589 | info->smallpageshift = 0; |
| 590 | info->blocksize = 16; |
| 591 | info->blockshift = 4; |
| 592 | info->blockmask = 15; |
| 593 | |
| 594 | switch (deviceID) { |
| 595 | |
| 596 | case 0x6e: // 1MB |
| 597 | case 0xe8: |
| 598 | case 0xec: |
| 599 | info->pageshift = 8; |
| 600 | info->smallpageshift = 1; |
| 601 | return 0x00100000; |
| 602 | |
| 603 | case 0xea: // 2MB |
| 604 | case 0x64: |
| 605 | info->pageshift = 8; |
| 606 | info->smallpageshift = 1; |
| 607 | case 0x5d: // 5d is a ROM card with pagesize 512. |
| 608 | return 0x00200000; |
| 609 | |
| 610 | case 0xe3: // 4MB |
| 611 | case 0xe5: |
| 612 | case 0x6b: |
| 613 | case 0xd5: |
| 614 | return 0x00400000; |
| 615 | |
| 616 | case 0xe6: // 8MB |
| 617 | case 0xd6: |
| 618 | return 0x00800000; |
| 619 | |
| 620 | case 0x73: // 16MB |
| 621 | info->blocksize = 32; |
| 622 | info->blockshift = 5; |
| 623 | info->blockmask = 31; |
| 624 | return 0x01000000; |
| 625 | |
| 626 | case 0x75: // 32MB |
| 627 | info->blocksize = 32; |
| 628 | info->blockshift = 5; |
| 629 | info->blockmask = 31; |
| 630 | return 0x02000000; |
| 631 | |
| 632 | case 0x76: // 64MB |
| 633 | info->blocksize = 32; |
| 634 | info->blockshift = 5; |
| 635 | info->blockmask = 31; |
| 636 | return 0x04000000; |
| 637 | |
| 638 | case 0x79: // 128MB |
| 639 | info->blocksize = 32; |
| 640 | info->blockshift = 5; |
| 641 | info->blockmask = 31; |
| 642 | return 0x08000000; |
| 643 | |
| 644 | default: // unknown |
| 645 | return 0; |
| 646 | |
| 647 | } |
| 648 | } |
| 649 | |
| 650 | static int sddr55_read_map(struct us_data *us) { |
| 651 | |
| 652 | struct sddr55_card_info *info = (struct sddr55_card_info *)(us->extra); |
| 653 | int numblocks; |
| 654 | unsigned char *buffer; |
| 655 | unsigned char *command = us->iobuf; |
| 656 | int i; |
| 657 | unsigned short lba; |
| 658 | unsigned short max_lba; |
| 659 | int result; |
| 660 | |
| 661 | if (!info->capacity) |
| 662 | return -1; |
| 663 | |
| 664 | numblocks = info->capacity >> (info->blockshift + info->pageshift); |
| 665 | |
| 666 | buffer = kmalloc( numblocks * 2, GFP_NOIO ); |
| 667 | |
| 668 | if (!buffer) |
| 669 | return -1; |
| 670 | |
| 671 | memset(command, 0, 8); |
| 672 | command[5] = 0xB0; |
| 673 | command[6] = numblocks * 2 / 256; |
| 674 | command[7] = 0x8A; |
| 675 | |
| 676 | result = sddr55_bulk_transport(us, DMA_TO_DEVICE, command, 8); |
| 677 | |
| 678 | if ( result != USB_STOR_XFER_GOOD) { |
| 679 | kfree (buffer); |
| 680 | return -1; |
| 681 | } |
| 682 | |
| 683 | result = sddr55_bulk_transport(us, DMA_FROM_DEVICE, buffer, numblocks * 2); |
| 684 | |
| 685 | if ( result != USB_STOR_XFER_GOOD) { |
| 686 | kfree (buffer); |
| 687 | return -1; |
| 688 | } |
| 689 | |
| 690 | result = sddr55_bulk_transport(us, DMA_FROM_DEVICE, command, 2); |
| 691 | |
| 692 | if ( result != USB_STOR_XFER_GOOD) { |
| 693 | kfree (buffer); |
| 694 | return -1; |
| 695 | } |
| 696 | |
Jesper Juhl | 1bc3c9e | 2005-04-18 17:39:34 -0700 | [diff] [blame] | 697 | kfree(info->lba_to_pba); |
| 698 | kfree(info->pba_to_lba); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 699 | info->lba_to_pba = kmalloc(numblocks*sizeof(int), GFP_NOIO); |
| 700 | info->pba_to_lba = kmalloc(numblocks*sizeof(int), GFP_NOIO); |
| 701 | |
| 702 | if (info->lba_to_pba == NULL || info->pba_to_lba == NULL) { |
Jesper Juhl | 1bc3c9e | 2005-04-18 17:39:34 -0700 | [diff] [blame] | 703 | kfree(info->lba_to_pba); |
| 704 | kfree(info->pba_to_lba); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 705 | info->lba_to_pba = NULL; |
| 706 | info->pba_to_lba = NULL; |
| 707 | kfree(buffer); |
| 708 | return -1; |
| 709 | } |
| 710 | |
| 711 | memset(info->lba_to_pba, 0xff, numblocks*sizeof(int)); |
| 712 | memset(info->pba_to_lba, 0xff, numblocks*sizeof(int)); |
| 713 | |
| 714 | /* set maximum lba */ |
| 715 | max_lba = info->max_log_blks; |
| 716 | if (max_lba > 1000) |
| 717 | max_lba = 1000; |
| 718 | |
Felipe Balbi | f0183a3 | 2016-04-18 13:09:11 +0300 | [diff] [blame] | 719 | /* |
| 720 | * Each block is 64 bytes of control data, so block i is located in |
| 721 | * scatterlist block i*64/128k = i*(2^6)*(2^-17) = i*(2^-11) |
| 722 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 723 | |
| 724 | for (i=0; i<numblocks; i++) { |
| 725 | int zone = i / 1024; |
| 726 | |
| 727 | lba = short_pack(buffer[i * 2], buffer[i * 2 + 1]); |
| 728 | |
Felipe Balbi | f0183a3 | 2016-04-18 13:09:11 +0300 | [diff] [blame] | 729 | /* |
| 730 | * Every 1024 physical blocks ("zone"), the LBA numbers |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 731 | * go back to zero, but are within a higher |
| 732 | * block of LBA's. Also, there is a maximum of |
| 733 | * 1000 LBA's per zone. In other words, in PBA |
| 734 | * 1024-2047 you will find LBA 0-999 which are |
| 735 | * really LBA 1000-1999. Yes, this wastes 24 |
| 736 | * physical blocks per zone. Go figure. |
| 737 | * These devices can have blocks go bad, so there |
| 738 | * are 24 spare blocks to use when blocks do go bad. |
| 739 | */ |
| 740 | |
Felipe Balbi | f0183a3 | 2016-04-18 13:09:11 +0300 | [diff] [blame] | 741 | /* |
| 742 | * SDDR55 returns 0xffff for a bad block, and 0x400 for the |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 743 | * CIS block. (Is this true for cards 8MB or less??) |
| 744 | * Record these in the physical to logical map |
| 745 | */ |
| 746 | |
| 747 | info->pba_to_lba[i] = lba; |
| 748 | |
| 749 | if (lba >= max_lba) { |
| 750 | continue; |
| 751 | } |
| 752 | |
| 753 | if (info->lba_to_pba[lba + zone * 1000] != NOT_ALLOCATED && |
| 754 | !info->force_read_only) { |
Frank Seidel | 6f8aa65 | 2009-02-05 16:16:24 +0100 | [diff] [blame] | 755 | printk(KERN_WARNING |
| 756 | "sddr55: map inconsistency at LBA %04X\n", |
| 757 | lba + zone * 1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 758 | info->force_read_only = 1; |
| 759 | } |
| 760 | |
| 761 | if (lba<0x10 || (lba>=0x3E0 && lba<0x3EF)) |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 762 | usb_stor_dbg(us, "LBA %04X <-> PBA %04X\n", lba, i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 763 | |
| 764 | info->lba_to_pba[lba + zone * 1000] = i; |
| 765 | } |
| 766 | |
| 767 | kfree(buffer); |
| 768 | return 0; |
| 769 | } |
| 770 | |
| 771 | |
| 772 | static void sddr55_card_info_destructor(void *extra) { |
| 773 | struct sddr55_card_info *info = (struct sddr55_card_info *)extra; |
| 774 | |
| 775 | if (!extra) |
| 776 | return; |
| 777 | |
Jesper Juhl | 1bc3c9e | 2005-04-18 17:39:34 -0700 | [diff] [blame] | 778 | kfree(info->lba_to_pba); |
| 779 | kfree(info->pba_to_lba); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 780 | } |
| 781 | |
| 782 | |
| 783 | /* |
| 784 | * Transport for the Sandisk SDDR-55 |
| 785 | */ |
Alan Stern | 70fcc00 | 2009-02-12 14:47:59 -0500 | [diff] [blame] | 786 | static int sddr55_transport(struct scsi_cmnd *srb, struct us_data *us) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 787 | { |
| 788 | int result; |
| 789 | static unsigned char inquiry_response[8] = { |
| 790 | 0x00, 0x80, 0x00, 0x02, 0x1F, 0x00, 0x00, 0x00 |
| 791 | }; |
| 792 | // write-protected for now, no block descriptor support |
| 793 | static unsigned char mode_page_01[20] = { |
| 794 | 0x0, 0x12, 0x00, 0x80, 0x0, 0x0, 0x0, 0x0, |
| 795 | 0x01, 0x0A, |
| 796 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 |
| 797 | }; |
| 798 | unsigned char *ptr = us->iobuf; |
| 799 | unsigned long capacity; |
| 800 | unsigned int lba; |
| 801 | unsigned int pba; |
| 802 | unsigned int page; |
| 803 | unsigned short pages; |
| 804 | struct sddr55_card_info *info; |
| 805 | |
| 806 | if (!us->extra) { |
Oliver Neukum | 887c256 | 2006-01-08 12:33:45 +0100 | [diff] [blame] | 807 | us->extra = kzalloc( |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 808 | sizeof(struct sddr55_card_info), GFP_NOIO); |
| 809 | if (!us->extra) |
| 810 | return USB_STOR_TRANSPORT_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 811 | us->extra_destructor = sddr55_card_info_destructor; |
| 812 | } |
| 813 | |
| 814 | info = (struct sddr55_card_info *)(us->extra); |
| 815 | |
| 816 | if (srb->cmnd[0] == REQUEST_SENSE) { |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 817 | usb_stor_dbg(us, "request sense %02x/%02x/%02x\n", |
| 818 | info->sense_data[2], |
| 819 | info->sense_data[12], |
| 820 | info->sense_data[13]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 821 | |
| 822 | memcpy (ptr, info->sense_data, sizeof info->sense_data); |
| 823 | ptr[0] = 0x70; |
| 824 | ptr[7] = 11; |
| 825 | usb_stor_set_xfer_buf (ptr, sizeof info->sense_data, srb); |
| 826 | memset (info->sense_data, 0, sizeof info->sense_data); |
| 827 | |
| 828 | return USB_STOR_TRANSPORT_GOOD; |
| 829 | } |
| 830 | |
| 831 | memset (info->sense_data, 0, sizeof info->sense_data); |
| 832 | |
Felipe Balbi | f0183a3 | 2016-04-18 13:09:11 +0300 | [diff] [blame] | 833 | /* |
| 834 | * Dummy up a response for INQUIRY since SDDR55 doesn't |
| 835 | * respond to INQUIRY commands |
| 836 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 837 | |
| 838 | if (srb->cmnd[0] == INQUIRY) { |
| 839 | memcpy(ptr, inquiry_response, 8); |
| 840 | fill_inquiry_response(us, ptr, 36); |
| 841 | return USB_STOR_TRANSPORT_GOOD; |
| 842 | } |
| 843 | |
Felipe Balbi | f0183a3 | 2016-04-18 13:09:11 +0300 | [diff] [blame] | 844 | /* |
| 845 | * only check card status if the map isn't allocated, ie no card seen yet |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 846 | * or if it's been over half a second since we last accessed it |
| 847 | */ |
| 848 | if (info->lba_to_pba == NULL || time_after(jiffies, info->last_access + HZ/2)) { |
| 849 | |
| 850 | /* check to see if a card is fitted */ |
| 851 | result = sddr55_status (us); |
| 852 | if (result) { |
| 853 | result = sddr55_status (us); |
| 854 | if (!result) { |
| 855 | set_sense_info (6, 0x28, 0); /* new media, set unit attention, not ready to ready */ |
| 856 | } |
| 857 | return USB_STOR_TRANSPORT_FAILED; |
| 858 | } |
| 859 | } |
| 860 | |
Felipe Balbi | f0183a3 | 2016-04-18 13:09:11 +0300 | [diff] [blame] | 861 | /* |
| 862 | * if we detected a problem with the map when writing, |
| 863 | * don't allow any more access |
| 864 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 865 | if (info->fatal_error) { |
| 866 | |
| 867 | set_sense_info (3, 0x31, 0); |
| 868 | return USB_STOR_TRANSPORT_FAILED; |
| 869 | } |
| 870 | |
| 871 | if (srb->cmnd[0] == READ_CAPACITY) { |
| 872 | |
| 873 | capacity = sddr55_get_capacity(us); |
| 874 | |
| 875 | if (!capacity) { |
| 876 | set_sense_info (3, 0x30, 0); /* incompatible medium */ |
| 877 | return USB_STOR_TRANSPORT_FAILED; |
| 878 | } |
| 879 | |
| 880 | info->capacity = capacity; |
| 881 | |
Felipe Balbi | f0183a3 | 2016-04-18 13:09:11 +0300 | [diff] [blame] | 882 | /* |
| 883 | * figure out the maximum logical block number, allowing for |
| 884 | * the fact that only 250 out of every 256 are used |
| 885 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 886 | info->max_log_blks = ((info->capacity >> (info->pageshift + info->blockshift)) / 256) * 250; |
| 887 | |
Felipe Balbi | f0183a3 | 2016-04-18 13:09:11 +0300 | [diff] [blame] | 888 | /* |
| 889 | * Last page in the card, adjust as we only use 250 out of |
| 890 | * every 256 pages |
| 891 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 892 | capacity = (capacity / 256) * 250; |
| 893 | |
| 894 | capacity /= PAGESIZE; |
| 895 | capacity--; |
| 896 | |
| 897 | ((__be32 *) ptr)[0] = cpu_to_be32(capacity); |
| 898 | ((__be32 *) ptr)[1] = cpu_to_be32(PAGESIZE); |
| 899 | usb_stor_set_xfer_buf(ptr, 8, srb); |
| 900 | |
| 901 | sddr55_read_map(us); |
| 902 | |
| 903 | return USB_STOR_TRANSPORT_GOOD; |
| 904 | } |
| 905 | |
| 906 | if (srb->cmnd[0] == MODE_SENSE_10) { |
| 907 | |
| 908 | memcpy(ptr, mode_page_01, sizeof mode_page_01); |
| 909 | ptr[3] = (info->read_only || info->force_read_only) ? 0x80 : 0; |
| 910 | usb_stor_set_xfer_buf(ptr, sizeof(mode_page_01), srb); |
| 911 | |
| 912 | if ( (srb->cmnd[2] & 0x3F) == 0x01 ) { |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 913 | usb_stor_dbg(us, "Dummy up request for mode page 1\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 914 | return USB_STOR_TRANSPORT_GOOD; |
| 915 | |
| 916 | } else if ( (srb->cmnd[2] & 0x3F) == 0x3F ) { |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 917 | usb_stor_dbg(us, "Dummy up request for all mode pages\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 918 | return USB_STOR_TRANSPORT_GOOD; |
| 919 | } |
| 920 | |
| 921 | set_sense_info (5, 0x24, 0); /* invalid field in command */ |
| 922 | return USB_STOR_TRANSPORT_FAILED; |
| 923 | } |
| 924 | |
| 925 | if (srb->cmnd[0] == ALLOW_MEDIUM_REMOVAL) { |
| 926 | |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 927 | usb_stor_dbg(us, "%s medium removal. Not that I can do anything about it...\n", |
| 928 | (srb->cmnd[4]&0x03) ? "Prevent" : "Allow"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 929 | |
| 930 | return USB_STOR_TRANSPORT_GOOD; |
| 931 | |
| 932 | } |
| 933 | |
| 934 | if (srb->cmnd[0] == READ_10 || srb->cmnd[0] == WRITE_10) { |
| 935 | |
| 936 | page = short_pack(srb->cmnd[3], srb->cmnd[2]); |
| 937 | page <<= 16; |
| 938 | page |= short_pack(srb->cmnd[5], srb->cmnd[4]); |
| 939 | pages = short_pack(srb->cmnd[8], srb->cmnd[7]); |
| 940 | |
| 941 | page <<= info->smallpageshift; |
| 942 | |
| 943 | // convert page to block and page-within-block |
| 944 | |
| 945 | lba = page >> info->blockshift; |
| 946 | page = page & info->blockmask; |
| 947 | |
| 948 | // locate physical block corresponding to logical block |
| 949 | |
| 950 | if (lba >= info->max_log_blks) { |
| 951 | |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 952 | usb_stor_dbg(us, "Error: Requested LBA %04X exceeds maximum block %04X\n", |
| 953 | lba, info->max_log_blks - 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 954 | |
| 955 | set_sense_info (5, 0x24, 0); /* invalid field in command */ |
| 956 | |
| 957 | return USB_STOR_TRANSPORT_FAILED; |
| 958 | } |
| 959 | |
| 960 | pba = info->lba_to_pba[lba]; |
| 961 | |
| 962 | if (srb->cmnd[0] == WRITE_10) { |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 963 | usb_stor_dbg(us, "WRITE_10: write block %04X (LBA %04X) page %01X pages %d\n", |
| 964 | pba, lba, page, pages); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 965 | |
| 966 | return sddr55_write_data(us, lba, page, pages); |
| 967 | } else { |
Joe Perches | 191648d | 2013-04-19 11:44:00 -0700 | [diff] [blame] | 968 | usb_stor_dbg(us, "READ_10: read block %04X (LBA %04X) page %01X pages %d\n", |
| 969 | pba, lba, page, pages); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 970 | |
| 971 | return sddr55_read_data(us, lba, page, pages); |
| 972 | } |
| 973 | } |
| 974 | |
| 975 | |
| 976 | if (srb->cmnd[0] == TEST_UNIT_READY) { |
| 977 | return USB_STOR_TRANSPORT_GOOD; |
| 978 | } |
| 979 | |
| 980 | if (srb->cmnd[0] == START_STOP) { |
| 981 | return USB_STOR_TRANSPORT_GOOD; |
| 982 | } |
| 983 | |
| 984 | set_sense_info (5, 0x20, 0); /* illegal command */ |
| 985 | |
| 986 | return USB_STOR_TRANSPORT_FAILED; // FIXME: sense buffer? |
| 987 | } |
| 988 | |
Akinobu Mita | aa519be | 2015-05-06 18:24:21 +0900 | [diff] [blame] | 989 | static struct scsi_host_template sddr55_host_template; |
Alan Stern | 70fcc00 | 2009-02-12 14:47:59 -0500 | [diff] [blame] | 990 | |
| 991 | static int sddr55_probe(struct usb_interface *intf, |
| 992 | const struct usb_device_id *id) |
| 993 | { |
| 994 | struct us_data *us; |
| 995 | int result; |
| 996 | |
| 997 | result = usb_stor_probe1(&us, intf, id, |
Akinobu Mita | aa519be | 2015-05-06 18:24:21 +0900 | [diff] [blame] | 998 | (id - sddr55_usb_ids) + sddr55_unusual_dev_list, |
| 999 | &sddr55_host_template); |
Alan Stern | 70fcc00 | 2009-02-12 14:47:59 -0500 | [diff] [blame] | 1000 | if (result) |
| 1001 | return result; |
| 1002 | |
| 1003 | us->transport_name = "SDDR55"; |
| 1004 | us->transport = sddr55_transport; |
| 1005 | us->transport_reset = sddr55_reset; |
| 1006 | us->max_lun = 0; |
| 1007 | |
| 1008 | result = usb_stor_probe2(us); |
| 1009 | return result; |
| 1010 | } |
| 1011 | |
| 1012 | static struct usb_driver sddr55_driver = { |
Akinobu Mita | aa519be | 2015-05-06 18:24:21 +0900 | [diff] [blame] | 1013 | .name = DRV_NAME, |
Alan Stern | 70fcc00 | 2009-02-12 14:47:59 -0500 | [diff] [blame] | 1014 | .probe = sddr55_probe, |
| 1015 | .disconnect = usb_stor_disconnect, |
| 1016 | .suspend = usb_stor_suspend, |
| 1017 | .resume = usb_stor_resume, |
| 1018 | .reset_resume = usb_stor_reset_resume, |
| 1019 | .pre_reset = usb_stor_pre_reset, |
| 1020 | .post_reset = usb_stor_post_reset, |
| 1021 | .id_table = sddr55_usb_ids, |
| 1022 | .soft_unbind = 1, |
Huajun Li | e73b2db | 2012-01-14 10:15:21 +0800 | [diff] [blame] | 1023 | .no_dynamic_id = 1, |
Alan Stern | 70fcc00 | 2009-02-12 14:47:59 -0500 | [diff] [blame] | 1024 | }; |
| 1025 | |
Akinobu Mita | aa519be | 2015-05-06 18:24:21 +0900 | [diff] [blame] | 1026 | module_usb_stor_driver(sddr55_driver, sddr55_host_template, DRV_NAME); |