Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * sisusb - usb kernel driver for SiS315(E) based USB2VGA dongles |
| 3 | * |
| 4 | * Copyright (C) 2005 by Thomas Winischhofer, Vienna, Austria |
| 5 | * |
| 6 | * If distributed as part of the Linux kernel, this code is licensed under the |
| 7 | * terms of the GPL v2. |
| 8 | * |
| 9 | * Otherwise, the following license terms apply: |
| 10 | * |
| 11 | * * Redistribution and use in source and binary forms, with or without |
| 12 | * * modification, are permitted provided that the following conditions |
| 13 | * * are met: |
| 14 | * * 1) Redistributions of source code must retain the above copyright |
| 15 | * * notice, this list of conditions and the following disclaimer. |
| 16 | * * 2) Redistributions in binary form must reproduce the above copyright |
| 17 | * * notice, this list of conditions and the following disclaimer in the |
| 18 | * * documentation and/or other materials provided with the distribution. |
| 19 | * * 3) The name of the author may not be used to endorse or promote products |
| 20 | * * derived from this software without specific psisusbr written permission. |
| 21 | * * |
| 22 | * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESSED OR |
| 23 | * * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 24 | * * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 25 | * * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 26 | * * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 27 | * * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 28 | * * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 29 | * * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 30 | * * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 31 | * * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 32 | * |
| 33 | * Author: Thomas Winischhofer <thomas@winischhofer.net> |
| 34 | * |
| 35 | */ |
| 36 | |
| 37 | #include <linux/config.h> |
| 38 | #include <linux/version.h> |
| 39 | #include <linux/module.h> |
| 40 | #include <linux/kernel.h> |
| 41 | #include <linux/signal.h> |
| 42 | #include <linux/sched.h> |
| 43 | #include <linux/errno.h> |
| 44 | #include <linux/poll.h> |
| 45 | #include <linux/init.h> |
| 46 | #include <linux/slab.h> |
| 47 | #include <linux/spinlock.h> |
| 48 | #include <linux/kref.h> |
| 49 | #include <linux/usb.h> |
| 50 | #include <linux/smp_lock.h> |
| 51 | |
| 52 | #include "sisusb.h" |
| 53 | |
| 54 | #define SISUSB_DONTSYNC |
| 55 | |
| 56 | /* Forward declarations / clean-up routines */ |
| 57 | |
| 58 | static struct usb_driver sisusb_driver; |
| 59 | |
| 60 | static DECLARE_MUTEX(disconnect_sem); |
| 61 | |
| 62 | static void |
| 63 | sisusb_free_buffers(struct sisusb_usb_data *sisusb) |
| 64 | { |
| 65 | int i; |
| 66 | |
| 67 | for (i = 0; i < NUMOBUFS; i++) { |
| 68 | if (sisusb->obuf[i]) { |
| 69 | usb_buffer_free(sisusb->sisusb_dev, sisusb->obufsize, |
| 70 | sisusb->obuf[i], sisusb->transfer_dma_out[i]); |
| 71 | sisusb->obuf[i] = NULL; |
| 72 | } |
| 73 | } |
| 74 | if (sisusb->ibuf) { |
| 75 | usb_buffer_free(sisusb->sisusb_dev, sisusb->ibufsize, |
| 76 | sisusb->ibuf, sisusb->transfer_dma_in); |
| 77 | sisusb->ibuf = NULL; |
| 78 | } |
| 79 | } |
| 80 | |
| 81 | static void |
| 82 | sisusb_free_urbs(struct sisusb_usb_data *sisusb) |
| 83 | { |
| 84 | int i; |
| 85 | |
| 86 | for (i = 0; i < NUMOBUFS; i++) { |
| 87 | usb_free_urb(sisusb->sisurbout[i]); |
| 88 | sisusb->sisurbout[i] = NULL; |
| 89 | } |
| 90 | usb_free_urb(sisusb->sisurbin); |
| 91 | sisusb->sisurbin = NULL; |
| 92 | } |
| 93 | |
| 94 | /* Level 0: USB transport layer */ |
| 95 | |
| 96 | /* 1. out-bulks */ |
| 97 | |
| 98 | /* out-urb management */ |
| 99 | |
| 100 | /* Return 1 if all free, 0 otherwise */ |
| 101 | static int |
| 102 | sisusb_all_free(struct sisusb_usb_data *sisusb) |
| 103 | { |
| 104 | int i; |
| 105 | |
| 106 | for (i = 0; i < sisusb->numobufs; i++) { |
| 107 | |
| 108 | if (sisusb->urbstatus[i] & SU_URB_BUSY) |
| 109 | return 0; |
| 110 | |
| 111 | } |
| 112 | |
| 113 | return 1; |
| 114 | } |
| 115 | |
| 116 | /* Kill all busy URBs */ |
| 117 | static void |
| 118 | sisusb_kill_all_busy(struct sisusb_usb_data *sisusb) |
| 119 | { |
| 120 | int i; |
| 121 | |
| 122 | if (sisusb_all_free(sisusb)) |
| 123 | return; |
| 124 | |
| 125 | for (i = 0; i < sisusb->numobufs; i++) { |
| 126 | |
| 127 | if (sisusb->urbstatus[i] & SU_URB_BUSY) |
| 128 | usb_kill_urb(sisusb->sisurbout[i]); |
| 129 | |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | /* Return 1 if ok, 0 if error (not all complete within timeout) */ |
| 134 | static int |
| 135 | sisusb_wait_all_out_complete(struct sisusb_usb_data *sisusb) |
| 136 | { |
| 137 | int timeout = 5 * HZ, i = 1; |
| 138 | |
| 139 | wait_event_timeout(sisusb->wait_q, |
| 140 | (i = sisusb_all_free(sisusb)), |
| 141 | timeout); |
| 142 | |
| 143 | return i; |
| 144 | } |
| 145 | |
| 146 | static int |
| 147 | sisusb_outurb_available(struct sisusb_usb_data *sisusb) |
| 148 | { |
| 149 | int i; |
| 150 | |
| 151 | for (i = 0; i < sisusb->numobufs; i++) { |
| 152 | |
| 153 | if ((sisusb->urbstatus[i] & (SU_URB_BUSY|SU_URB_ALLOC)) == 0) |
| 154 | return i; |
| 155 | |
| 156 | } |
| 157 | |
| 158 | return -1; |
| 159 | } |
| 160 | |
| 161 | static int |
| 162 | sisusb_get_free_outbuf(struct sisusb_usb_data *sisusb) |
| 163 | { |
| 164 | int i, timeout = 5 * HZ; |
| 165 | |
| 166 | wait_event_timeout(sisusb->wait_q, |
| 167 | ((i = sisusb_outurb_available(sisusb)) >= 0), |
| 168 | timeout); |
| 169 | |
| 170 | return i; |
| 171 | } |
| 172 | |
| 173 | static int |
| 174 | sisusb_alloc_outbuf(struct sisusb_usb_data *sisusb) |
| 175 | { |
| 176 | int i; |
| 177 | |
| 178 | i = sisusb_outurb_available(sisusb); |
| 179 | |
| 180 | if (i >= 0) |
| 181 | sisusb->urbstatus[i] |= SU_URB_ALLOC; |
| 182 | |
| 183 | return i; |
| 184 | } |
| 185 | |
| 186 | static void |
| 187 | sisusb_free_outbuf(struct sisusb_usb_data *sisusb, int index) |
| 188 | { |
| 189 | if ((index >= 0) && (index < sisusb->numobufs)) |
| 190 | sisusb->urbstatus[index] &= ~SU_URB_ALLOC; |
| 191 | } |
| 192 | |
| 193 | /* completion callback */ |
| 194 | |
| 195 | static void |
| 196 | sisusb_bulk_completeout(struct urb *urb, struct pt_regs *regs) |
| 197 | { |
| 198 | struct sisusb_urb_context *context = urb->context; |
| 199 | struct sisusb_usb_data *sisusb; |
| 200 | |
| 201 | if (!context) |
| 202 | return; |
| 203 | |
| 204 | sisusb = context->sisusb; |
| 205 | |
| 206 | if (!sisusb || !sisusb->sisusb_dev || !sisusb->present) |
| 207 | return; |
| 208 | |
| 209 | #ifndef SISUSB_DONTSYNC |
| 210 | if (context->actual_length) |
| 211 | *(context->actual_length) += urb->actual_length; |
| 212 | #endif |
| 213 | |
| 214 | sisusb->urbstatus[context->urbindex] &= ~SU_URB_BUSY; |
| 215 | wake_up(&sisusb->wait_q); |
| 216 | } |
| 217 | |
| 218 | static int |
| 219 | sisusb_bulkout_msg(struct sisusb_usb_data *sisusb, int index, unsigned int pipe, void *data, |
| 220 | int len, int *actual_length, int timeout, unsigned int tflags, |
| 221 | dma_addr_t transfer_dma) |
| 222 | { |
| 223 | struct urb *urb = sisusb->sisurbout[index]; |
| 224 | int retval, byteswritten = 0; |
| 225 | |
| 226 | /* Set up URB */ |
| 227 | urb->transfer_flags = 0; |
| 228 | |
| 229 | usb_fill_bulk_urb(urb, sisusb->sisusb_dev, pipe, data, len, |
| 230 | sisusb_bulk_completeout, &sisusb->urbout_context[index]); |
| 231 | |
| 232 | urb->transfer_flags |= (tflags | URB_ASYNC_UNLINK); |
| 233 | urb->actual_length = 0; |
| 234 | |
| 235 | if ((urb->transfer_dma = transfer_dma)) |
| 236 | urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; |
| 237 | |
| 238 | /* Set up context */ |
| 239 | sisusb->urbout_context[index].actual_length = (timeout) ? |
| 240 | NULL : actual_length; |
| 241 | |
| 242 | /* Declare this urb/buffer in use */ |
| 243 | sisusb->urbstatus[index] |= SU_URB_BUSY; |
| 244 | |
| 245 | /* Submit URB */ |
| 246 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
| 247 | |
| 248 | /* If OK, and if timeout > 0, wait for completion */ |
| 249 | if ((retval == 0) && timeout) { |
| 250 | wait_event_timeout(sisusb->wait_q, |
| 251 | (!(sisusb->urbstatus[index] & SU_URB_BUSY)), |
| 252 | timeout); |
| 253 | if (sisusb->urbstatus[index] & SU_URB_BUSY) { |
| 254 | /* URB timed out... kill it and report error */ |
| 255 | usb_kill_urb(urb); |
| 256 | retval = -ETIMEDOUT; |
| 257 | } else { |
| 258 | /* Otherwise, report urb status */ |
| 259 | retval = urb->status; |
| 260 | byteswritten = urb->actual_length; |
| 261 | } |
| 262 | } |
| 263 | |
| 264 | if (actual_length) |
| 265 | *actual_length = byteswritten; |
| 266 | |
| 267 | return retval; |
| 268 | } |
| 269 | |
| 270 | /* 2. in-bulks */ |
| 271 | |
| 272 | /* completion callback */ |
| 273 | |
| 274 | static void |
| 275 | sisusb_bulk_completein(struct urb *urb, struct pt_regs *regs) |
| 276 | { |
| 277 | struct sisusb_usb_data *sisusb = urb->context; |
| 278 | |
| 279 | if (!sisusb || !sisusb->sisusb_dev || !sisusb->present) |
| 280 | return; |
| 281 | |
| 282 | sisusb->completein = 1; |
| 283 | wake_up(&sisusb->wait_q); |
| 284 | } |
| 285 | |
| 286 | static int |
| 287 | sisusb_bulkin_msg(struct sisusb_usb_data *sisusb, unsigned int pipe, void *data, int len, |
| 288 | int *actual_length, int timeout, unsigned int tflags, dma_addr_t transfer_dma) |
| 289 | { |
| 290 | struct urb *urb = sisusb->sisurbin; |
| 291 | int retval, readbytes = 0; |
| 292 | |
| 293 | urb->transfer_flags = 0; |
| 294 | |
| 295 | usb_fill_bulk_urb(urb, sisusb->sisusb_dev, pipe, data, len, |
| 296 | sisusb_bulk_completein, sisusb); |
| 297 | |
| 298 | urb->transfer_flags |= (tflags | URB_ASYNC_UNLINK); |
| 299 | urb->actual_length = 0; |
| 300 | |
| 301 | if ((urb->transfer_dma = transfer_dma)) |
| 302 | urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; |
| 303 | |
| 304 | sisusb->completein = 0; |
| 305 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
| 306 | if (retval == 0) { |
| 307 | wait_event_timeout(sisusb->wait_q, sisusb->completein, timeout); |
| 308 | if (!sisusb->completein) { |
| 309 | /* URB timed out... kill it and report error */ |
| 310 | usb_kill_urb(urb); |
| 311 | retval = -ETIMEDOUT; |
| 312 | } else { |
| 313 | /* URB completed within timout */ |
| 314 | retval = urb->status; |
| 315 | readbytes = urb->actual_length; |
| 316 | } |
| 317 | } |
| 318 | |
| 319 | if (actual_length) |
| 320 | *actual_length = readbytes; |
| 321 | |
| 322 | return retval; |
| 323 | } |
| 324 | |
| 325 | |
| 326 | /* Level 1: */ |
| 327 | |
| 328 | /* Send a bulk message of variable size |
| 329 | * |
| 330 | * To copy the data from userspace, give pointer to "userbuffer", |
| 331 | * to copy from (non-DMA) kernel memory, give "kernbuffer". If |
| 332 | * both of these are NULL, it is assumed, that the transfer |
| 333 | * buffer "sisusb->obuf[index]" is set up with the data to send. |
| 334 | * Index is ignored if either kernbuffer or userbuffer is set. |
| 335 | * If async is nonzero, URBs will be sent without waiting for |
| 336 | * completion of the previous URB. |
| 337 | * |
| 338 | * (return 0 on success) |
| 339 | */ |
| 340 | |
| 341 | static int sisusb_send_bulk_msg(struct sisusb_usb_data *sisusb, int ep, int len, |
| 342 | char *kernbuffer, const char __user *userbuffer, int index, |
| 343 | ssize_t *bytes_written, unsigned int tflags, int async) |
| 344 | { |
| 345 | int result = 0, retry, count = len; |
| 346 | int passsize, thispass, transferred_len = 0; |
| 347 | int fromuser = (userbuffer != NULL) ? 1 : 0; |
| 348 | int fromkern = (kernbuffer != NULL) ? 1 : 0; |
| 349 | unsigned int pipe; |
| 350 | char *buffer; |
| 351 | |
| 352 | (*bytes_written) = 0; |
| 353 | |
| 354 | /* Sanity check */ |
| 355 | if (!sisusb || !sisusb->present || !sisusb->sisusb_dev) |
| 356 | return -ENODEV; |
| 357 | |
| 358 | /* If we copy data from kernel or userspace, force the |
| 359 | * allocation of a buffer/urb. If we have the data in |
| 360 | * the transfer buffer[index] already, reuse the buffer/URB |
| 361 | * if the length is > buffer size. (So, transmitting |
| 362 | * large data amounts directly from the transfer buffer |
| 363 | * treats the buffer as a ring buffer. However, we need |
| 364 | * to sync in this case.) |
| 365 | */ |
| 366 | if (fromuser || fromkern) |
| 367 | index = -1; |
| 368 | else if (len > sisusb->obufsize) |
| 369 | async = 0; |
| 370 | |
| 371 | pipe = usb_sndbulkpipe(sisusb->sisusb_dev, ep); |
| 372 | |
| 373 | do { |
| 374 | passsize = thispass = (sisusb->obufsize < count) ? |
| 375 | sisusb->obufsize : count; |
| 376 | |
| 377 | if (index < 0) |
| 378 | index = sisusb_get_free_outbuf(sisusb); |
| 379 | |
| 380 | if (index < 0) |
| 381 | return -EIO; |
| 382 | |
| 383 | buffer = sisusb->obuf[index]; |
| 384 | |
| 385 | if (fromuser) { |
| 386 | |
| 387 | if (copy_from_user(buffer, userbuffer, passsize)) |
| 388 | return -EFAULT; |
| 389 | |
| 390 | userbuffer += passsize; |
| 391 | |
| 392 | } else if (fromkern) { |
| 393 | |
| 394 | memcpy(buffer, kernbuffer, passsize); |
| 395 | kernbuffer += passsize; |
| 396 | |
| 397 | } |
| 398 | |
| 399 | retry = 5; |
| 400 | while (thispass) { |
| 401 | |
| 402 | if (!sisusb->sisusb_dev) |
| 403 | return -ENODEV; |
| 404 | |
| 405 | result = sisusb_bulkout_msg(sisusb, |
| 406 | index, |
| 407 | pipe, |
| 408 | buffer, |
| 409 | thispass, |
| 410 | &transferred_len, |
| 411 | async ? 0 : 5 * HZ, |
| 412 | tflags, |
| 413 | sisusb->transfer_dma_out[index]); |
| 414 | |
| 415 | if (result == -ETIMEDOUT) { |
| 416 | |
| 417 | /* Will not happen if async */ |
| 418 | if (!retry--) |
| 419 | return -ETIME; |
| 420 | |
| 421 | continue; |
| 422 | |
| 423 | } else if ((result == 0) && !async && transferred_len) { |
| 424 | |
| 425 | thispass -= transferred_len; |
| 426 | if (thispass) { |
| 427 | if (sisusb->transfer_dma_out) { |
| 428 | /* If DMA, copy remaining |
| 429 | * to beginning of buffer |
| 430 | */ |
| 431 | memcpy(buffer, |
| 432 | buffer + transferred_len, |
| 433 | thispass); |
| 434 | } else { |
| 435 | /* If not DMA, simply increase |
| 436 | * the pointer |
| 437 | */ |
| 438 | buffer += transferred_len; |
| 439 | } |
| 440 | } |
| 441 | |
| 442 | } else |
| 443 | break; |
| 444 | }; |
| 445 | |
| 446 | if (result) |
| 447 | return result; |
| 448 | |
| 449 | (*bytes_written) += passsize; |
| 450 | count -= passsize; |
| 451 | |
| 452 | /* Force new allocation in next iteration */ |
| 453 | if (fromuser || fromkern) |
| 454 | index = -1; |
| 455 | |
| 456 | } while (count > 0); |
| 457 | |
| 458 | if (async) { |
| 459 | #ifdef SISUSB_DONTSYNC |
| 460 | (*bytes_written) = len; |
| 461 | /* Some URBs/buffers might be busy */ |
| 462 | #else |
| 463 | sisusb_wait_all_out_complete(sisusb); |
| 464 | (*bytes_written) = transferred_len; |
| 465 | /* All URBs and all buffers are available */ |
| 466 | #endif |
| 467 | } |
| 468 | |
| 469 | return ((*bytes_written) == len) ? 0 : -EIO; |
| 470 | } |
| 471 | |
| 472 | /* Receive a bulk message of variable size |
| 473 | * |
| 474 | * To copy the data to userspace, give pointer to "userbuffer", |
| 475 | * to copy to kernel memory, give "kernbuffer". One of them |
| 476 | * MUST be set. (There is no technique for letting the caller |
| 477 | * read directly from the ibuf.) |
| 478 | * |
| 479 | */ |
| 480 | |
| 481 | static int sisusb_recv_bulk_msg(struct sisusb_usb_data *sisusb, int ep, int len, |
| 482 | void *kernbuffer, char __user *userbuffer, ssize_t *bytes_read, |
| 483 | unsigned int tflags) |
| 484 | { |
| 485 | int result = 0, retry, count = len; |
| 486 | int bufsize, thispass, transferred_len; |
| 487 | unsigned int pipe; |
| 488 | char *buffer; |
| 489 | |
| 490 | (*bytes_read) = 0; |
| 491 | |
| 492 | /* Sanity check */ |
| 493 | if (!sisusb || !sisusb->present || !sisusb->sisusb_dev) |
| 494 | return -ENODEV; |
| 495 | |
| 496 | pipe = usb_rcvbulkpipe(sisusb->sisusb_dev, ep); |
| 497 | buffer = sisusb->ibuf; |
| 498 | bufsize = sisusb->ibufsize; |
| 499 | |
| 500 | retry = 5; |
| 501 | |
| 502 | #ifdef SISUSB_DONTSYNC |
| 503 | if (!(sisusb_wait_all_out_complete(sisusb))) |
| 504 | return -EIO; |
| 505 | #endif |
| 506 | |
| 507 | while (count > 0) { |
| 508 | |
| 509 | if (!sisusb->sisusb_dev) |
| 510 | return -ENODEV; |
| 511 | |
| 512 | thispass = (bufsize < count) ? bufsize : count; |
| 513 | |
| 514 | result = sisusb_bulkin_msg(sisusb, |
| 515 | pipe, |
| 516 | buffer, |
| 517 | thispass, |
| 518 | &transferred_len, |
| 519 | 5 * HZ, |
| 520 | tflags, |
| 521 | sisusb->transfer_dma_in); |
| 522 | |
| 523 | if (transferred_len) |
| 524 | thispass = transferred_len; |
| 525 | |
| 526 | else if (result == -ETIMEDOUT) { |
| 527 | |
| 528 | if (!retry--) |
| 529 | return -ETIME; |
| 530 | |
| 531 | continue; |
| 532 | |
| 533 | } else |
| 534 | return -EIO; |
| 535 | |
| 536 | |
| 537 | if (thispass) { |
| 538 | |
| 539 | (*bytes_read) += thispass; |
| 540 | count -= thispass; |
| 541 | |
| 542 | if (userbuffer) { |
| 543 | |
| 544 | if (copy_to_user(userbuffer, buffer, thispass)) |
| 545 | return -EFAULT; |
| 546 | |
| 547 | userbuffer += thispass; |
| 548 | |
| 549 | } else { |
| 550 | |
| 551 | memcpy(kernbuffer, buffer, thispass); |
| 552 | kernbuffer += thispass; |
| 553 | |
| 554 | } |
| 555 | |
| 556 | } |
| 557 | |
| 558 | } |
| 559 | |
| 560 | return ((*bytes_read) == len) ? 0 : -EIO; |
| 561 | } |
| 562 | |
| 563 | static int sisusb_send_packet(struct sisusb_usb_data *sisusb, int len, |
| 564 | struct sisusb_packet *packet) |
| 565 | { |
| 566 | int ret; |
| 567 | ssize_t bytes_transferred = 0; |
| 568 | __le32 tmp; |
| 569 | |
| 570 | if (len == 6) |
| 571 | packet->data = 0; |
| 572 | |
| 573 | #ifdef SISUSB_DONTSYNC |
| 574 | if (!(sisusb_wait_all_out_complete(sisusb))) |
| 575 | return 1; |
| 576 | #endif |
| 577 | |
| 578 | /* Eventually correct endianness */ |
| 579 | SISUSB_CORRECT_ENDIANNESS_PACKET(packet); |
| 580 | |
| 581 | /* 1. send the packet */ |
| 582 | ret = sisusb_send_bulk_msg(sisusb, SISUSB_EP_GFX_OUT, len, |
| 583 | (char *)packet, NULL, 0, &bytes_transferred, 0, 0); |
| 584 | |
| 585 | if ((ret == 0) && (len == 6)) { |
| 586 | |
| 587 | /* 2. if packet len == 6, it means we read, so wait for 32bit |
| 588 | * return value and write it to packet->data |
| 589 | */ |
| 590 | ret = sisusb_recv_bulk_msg(sisusb, SISUSB_EP_GFX_IN, 4, |
| 591 | (char *)&tmp, NULL, &bytes_transferred, 0); |
| 592 | |
| 593 | packet->data = le32_to_cpu(tmp); |
| 594 | } |
| 595 | |
| 596 | return ret; |
| 597 | } |
| 598 | |
| 599 | static int sisusb_send_bridge_packet(struct sisusb_usb_data *sisusb, int len, |
| 600 | struct sisusb_packet *packet, |
| 601 | unsigned int tflags) |
| 602 | { |
| 603 | int ret; |
| 604 | ssize_t bytes_transferred = 0; |
| 605 | __le32 tmp; |
| 606 | |
| 607 | if (len == 6) |
| 608 | packet->data = 0; |
| 609 | |
| 610 | #ifdef SISUSB_DONTSYNC |
| 611 | if (!(sisusb_wait_all_out_complete(sisusb))) |
| 612 | return 1; |
| 613 | #endif |
| 614 | |
| 615 | /* Eventually correct endianness */ |
| 616 | SISUSB_CORRECT_ENDIANNESS_PACKET(packet); |
| 617 | |
| 618 | /* 1. send the packet */ |
| 619 | ret = sisusb_send_bulk_msg(sisusb, SISUSB_EP_BRIDGE_OUT, len, |
| 620 | (char *)packet, NULL, 0, &bytes_transferred, tflags, 0); |
| 621 | |
| 622 | if ((ret == 0) && (len == 6)) { |
| 623 | |
| 624 | /* 2. if packet len == 6, it means we read, so wait for 32bit |
| 625 | * return value and write it to packet->data |
| 626 | */ |
| 627 | ret = sisusb_recv_bulk_msg(sisusb, SISUSB_EP_BRIDGE_IN, 4, |
| 628 | (char *)&tmp, NULL, &bytes_transferred, 0); |
| 629 | |
| 630 | packet->data = le32_to_cpu(tmp); |
| 631 | } |
| 632 | |
| 633 | return ret; |
| 634 | } |
| 635 | |
| 636 | /* access video memory and mmio (return 0 on success) */ |
| 637 | |
| 638 | /* Low level */ |
| 639 | |
| 640 | /* The following routines assume being used to transfer byte, word, |
| 641 | * long etc. |
| 642 | * This means that they assume "data" in machine endianness format. |
| 643 | */ |
| 644 | |
| 645 | static int sisusb_write_memio_byte(struct sisusb_usb_data *sisusb, int type, |
| 646 | u32 addr, u8 data) |
| 647 | { |
| 648 | struct sisusb_packet packet; |
| 649 | int ret; |
| 650 | |
| 651 | packet.header = (1 << (addr & 3)) | (type << 6); |
| 652 | packet.address = addr & ~3; |
| 653 | packet.data = data << ((addr & 3) << 3); |
| 654 | ret = sisusb_send_packet(sisusb, 10, &packet); |
| 655 | return ret; |
| 656 | } |
| 657 | |
| 658 | static int sisusb_write_memio_word(struct sisusb_usb_data *sisusb, int type, |
| 659 | u32 addr, u16 data) |
| 660 | { |
| 661 | struct sisusb_packet packet; |
| 662 | int ret = 0; |
| 663 | |
| 664 | packet.address = addr & ~3; |
| 665 | |
| 666 | switch (addr & 3) { |
| 667 | case 0: |
| 668 | packet.header = (type << 6) | 0x0003; |
| 669 | packet.data = (u32)data; |
| 670 | ret = sisusb_send_packet(sisusb, 10, &packet); |
| 671 | break; |
| 672 | case 1: |
| 673 | packet.header = (type << 6) | 0x0006; |
| 674 | packet.data = (u32)data << 8; |
| 675 | ret = sisusb_send_packet(sisusb, 10, &packet); |
| 676 | break; |
| 677 | case 2: |
| 678 | packet.header = (type << 6) | 0x000c; |
| 679 | packet.data = (u32)data << 16; |
| 680 | ret = sisusb_send_packet(sisusb, 10, &packet); |
| 681 | break; |
| 682 | case 3: |
| 683 | packet.header = (type << 6) | 0x0008; |
| 684 | packet.data = (u32)data << 24; |
| 685 | ret = sisusb_send_packet(sisusb, 10, &packet); |
| 686 | packet.header = (type << 6) | 0x0001; |
| 687 | packet.address = (addr & ~3) + 4; |
| 688 | packet.data = (u32)data >> 8; |
| 689 | ret |= sisusb_send_packet(sisusb, 10, &packet); |
| 690 | } |
| 691 | |
| 692 | return ret; |
| 693 | } |
| 694 | |
| 695 | static int sisusb_write_memio_24bit(struct sisusb_usb_data *sisusb, int type, |
| 696 | u32 addr, u32 data) |
| 697 | { |
| 698 | struct sisusb_packet packet; |
| 699 | int ret = 0; |
| 700 | |
| 701 | packet.address = addr & ~3; |
| 702 | |
| 703 | switch (addr & 3) { |
| 704 | case 0: |
| 705 | packet.header = (type << 6) | 0x0007; |
| 706 | packet.data = data & 0x00ffffff; |
| 707 | ret = sisusb_send_packet(sisusb, 10, &packet); |
| 708 | break; |
| 709 | case 1: |
| 710 | packet.header = (type << 6) | 0x000e; |
| 711 | packet.data = data << 8; |
| 712 | ret = sisusb_send_packet(sisusb, 10, &packet); |
| 713 | break; |
| 714 | case 2: |
| 715 | packet.header = (type << 6) | 0x000c; |
| 716 | packet.data = data << 16; |
| 717 | ret = sisusb_send_packet(sisusb, 10, &packet); |
| 718 | packet.header = (type << 6) | 0x0001; |
| 719 | packet.address = (addr & ~3) + 4; |
| 720 | packet.data = (data >> 16) & 0x00ff; |
| 721 | ret |= sisusb_send_packet(sisusb, 10, &packet); |
| 722 | break; |
| 723 | case 3: |
| 724 | packet.header = (type << 6) | 0x0008; |
| 725 | packet.data = data << 24; |
| 726 | ret = sisusb_send_packet(sisusb, 10, &packet); |
| 727 | packet.header = (type << 6) | 0x0003; |
| 728 | packet.address = (addr & ~3) + 4; |
| 729 | packet.data = (data >> 8) & 0xffff; |
| 730 | ret |= sisusb_send_packet(sisusb, 10, &packet); |
| 731 | } |
| 732 | |
| 733 | return ret; |
| 734 | } |
| 735 | |
| 736 | static int sisusb_write_memio_long(struct sisusb_usb_data *sisusb, int type, |
| 737 | u32 addr, u32 data) |
| 738 | { |
| 739 | struct sisusb_packet packet; |
| 740 | int ret = 0; |
| 741 | |
| 742 | packet.address = addr & ~3; |
| 743 | |
| 744 | switch (addr & 3) { |
| 745 | case 0: |
| 746 | packet.header = (type << 6) | 0x000f; |
| 747 | packet.data = data; |
| 748 | ret = sisusb_send_packet(sisusb, 10, &packet); |
| 749 | break; |
| 750 | case 1: |
| 751 | packet.header = (type << 6) | 0x000e; |
| 752 | packet.data = data << 8; |
| 753 | ret = sisusb_send_packet(sisusb, 10, &packet); |
| 754 | packet.header = (type << 6) | 0x0001; |
| 755 | packet.address = (addr & ~3) + 4; |
| 756 | packet.data = data >> 24; |
| 757 | ret |= sisusb_send_packet(sisusb, 10, &packet); |
| 758 | break; |
| 759 | case 2: |
| 760 | packet.header = (type << 6) | 0x000c; |
| 761 | packet.data = data << 16; |
| 762 | ret = sisusb_send_packet(sisusb, 10, &packet); |
| 763 | packet.header = (type << 6) | 0x0003; |
| 764 | packet.address = (addr & ~3) + 4; |
| 765 | packet.data = data >> 16; |
| 766 | ret |= sisusb_send_packet(sisusb, 10, &packet); |
| 767 | break; |
| 768 | case 3: |
| 769 | packet.header = (type << 6) | 0x0008; |
| 770 | packet.data = data << 24; |
| 771 | ret = sisusb_send_packet(sisusb, 10, &packet); |
| 772 | packet.header = (type << 6) | 0x0007; |
| 773 | packet.address = (addr & ~3) + 4; |
| 774 | packet.data = data >> 8; |
| 775 | ret |= sisusb_send_packet(sisusb, 10, &packet); |
| 776 | } |
| 777 | |
| 778 | return ret; |
| 779 | } |
| 780 | |
| 781 | /* The xxx_bulk routines copy a buffer of variable size. They treat the |
| 782 | * buffer as chars, therefore lsb/msb has to be corrected if using the |
| 783 | * byte/word/long/etc routines for speed-up |
| 784 | * |
| 785 | * If data is from userland, set "userbuffer" (and clear "kernbuffer"), |
| 786 | * if data is in kernel space, set "kernbuffer" (and clear "userbuffer"); |
| 787 | * if neither "kernbuffer" nor "userbuffer" are given, it is assumed |
| 788 | * that the data already is in the transfer buffer "sisusb->obuf[index]". |
| 789 | */ |
| 790 | |
| 791 | static int sisusb_write_mem_bulk(struct sisusb_usb_data *sisusb, u32 addr, |
| 792 | char *kernbuffer, int length, |
| 793 | const char __user *userbuffer, int index, |
| 794 | ssize_t *bytes_written) |
| 795 | { |
| 796 | struct sisusb_packet packet; |
| 797 | int ret = 0; |
| 798 | static int msgcount = 0; |
| 799 | u8 swap8, fromkern = kernbuffer ? 1 : 0; |
| 800 | u16 swap16; |
| 801 | u32 swap32, flag = (length >> 28) & 1; |
| 802 | char buf[4]; |
| 803 | |
| 804 | /* if neither kernbuffer not userbuffer are given, assume |
| 805 | * data in obuf |
| 806 | */ |
| 807 | if (!fromkern && !userbuffer) |
| 808 | kernbuffer = sisusb->obuf[index]; |
| 809 | |
| 810 | (*bytes_written = 0); |
| 811 | |
| 812 | length &= 0x00ffffff; |
| 813 | |
| 814 | while (length) { |
| 815 | |
| 816 | switch (length) { |
| 817 | |
| 818 | case 0: |
| 819 | return ret; |
| 820 | |
| 821 | case 1: |
| 822 | if (userbuffer) { |
| 823 | if (get_user(swap8, (u8 __user *)userbuffer)) |
| 824 | return -EFAULT; |
| 825 | } else |
| 826 | swap8 = kernbuffer[0]; |
| 827 | |
| 828 | ret = sisusb_write_memio_byte(sisusb, |
| 829 | SISUSB_TYPE_MEM, |
| 830 | addr, swap8); |
| 831 | |
| 832 | if (!ret) |
| 833 | (*bytes_written)++; |
| 834 | |
| 835 | return ret; |
| 836 | |
| 837 | case 2: |
| 838 | if (userbuffer) { |
| 839 | if (get_user(swap16, (u16 __user *)userbuffer)) |
| 840 | return -EFAULT; |
| 841 | } else |
| 842 | swap16 = (kernbuffer[0] << 8) | kernbuffer[1]; |
| 843 | |
| 844 | ret = sisusb_write_memio_word(sisusb, |
| 845 | SISUSB_TYPE_MEM, |
| 846 | addr, |
| 847 | swap16); |
| 848 | |
| 849 | if (!ret) |
| 850 | (*bytes_written) += 2; |
| 851 | |
| 852 | return ret; |
| 853 | |
| 854 | case 3: |
| 855 | if (userbuffer) { |
| 856 | if (copy_from_user(&buf, userbuffer, 3)) |
| 857 | return -EFAULT; |
| 858 | |
| 859 | swap32 = (buf[0] << 16) | |
| 860 | (buf[1] << 8) | |
| 861 | buf[2]; |
| 862 | } else |
| 863 | swap32 = (kernbuffer[0] << 16) | |
| 864 | (kernbuffer[1] << 8) | |
| 865 | kernbuffer[2]; |
| 866 | |
| 867 | ret = sisusb_write_memio_24bit(sisusb, |
| 868 | SISUSB_TYPE_MEM, |
| 869 | addr, |
| 870 | swap32); |
| 871 | |
| 872 | if (!ret) |
| 873 | (*bytes_written) += 3; |
| 874 | |
| 875 | return ret; |
| 876 | |
| 877 | case 4: |
| 878 | if (userbuffer) { |
| 879 | if (get_user(swap32, (u32 __user *)userbuffer)) |
| 880 | return -EFAULT; |
| 881 | } else |
| 882 | swap32 = (kernbuffer[0] << 24) | |
| 883 | (kernbuffer[1] << 16) | |
| 884 | (kernbuffer[2] << 8) | |
| 885 | kernbuffer[3]; |
| 886 | |
| 887 | ret = sisusb_write_memio_long(sisusb, |
| 888 | SISUSB_TYPE_MEM, |
| 889 | addr, |
| 890 | swap32); |
| 891 | if (!ret) |
| 892 | (*bytes_written) += 4; |
| 893 | |
| 894 | return ret; |
| 895 | |
| 896 | default: |
| 897 | if ((length & ~3) > 0x10000) { |
| 898 | |
| 899 | packet.header = 0x001f; |
| 900 | packet.address = 0x000001d4; |
| 901 | packet.data = addr; |
| 902 | ret = sisusb_send_bridge_packet(sisusb, 10, |
| 903 | &packet, 0); |
| 904 | packet.header = 0x001f; |
| 905 | packet.address = 0x000001d0; |
| 906 | packet.data = (length & ~3); |
| 907 | ret |= sisusb_send_bridge_packet(sisusb, 10, |
| 908 | &packet, 0); |
| 909 | packet.header = 0x001f; |
| 910 | packet.address = 0x000001c0; |
| 911 | packet.data = flag | 0x16; |
| 912 | ret |= sisusb_send_bridge_packet(sisusb, 10, |
| 913 | &packet, 0); |
| 914 | if (userbuffer) { |
| 915 | ret |= sisusb_send_bulk_msg(sisusb, |
| 916 | SISUSB_EP_GFX_LBULK_OUT, |
| 917 | (length & ~3), |
| 918 | NULL, userbuffer, 0, |
| 919 | bytes_written, 0, 1); |
| 920 | userbuffer += (*bytes_written); |
| 921 | } else if (fromkern) { |
| 922 | ret |= sisusb_send_bulk_msg(sisusb, |
| 923 | SISUSB_EP_GFX_LBULK_OUT, |
| 924 | (length & ~3), |
| 925 | kernbuffer, NULL, 0, |
| 926 | bytes_written, 0, 1); |
| 927 | kernbuffer += (*bytes_written); |
| 928 | } else { |
| 929 | ret |= sisusb_send_bulk_msg(sisusb, |
| 930 | SISUSB_EP_GFX_LBULK_OUT, |
| 931 | (length & ~3), |
| 932 | NULL, NULL, index, |
| 933 | bytes_written, 0, 1); |
| 934 | kernbuffer += ((*bytes_written) & |
| 935 | (sisusb->obufsize-1)); |
| 936 | } |
| 937 | |
| 938 | } else { |
| 939 | |
| 940 | packet.header = 0x001f; |
| 941 | packet.address = 0x00000194; |
| 942 | packet.data = addr; |
| 943 | ret = sisusb_send_bridge_packet(sisusb, 10, |
| 944 | &packet, 0); |
| 945 | packet.header = 0x001f; |
| 946 | packet.address = 0x00000190; |
| 947 | packet.data = (length & ~3); |
| 948 | ret |= sisusb_send_bridge_packet(sisusb, 10, |
| 949 | &packet, 0); |
| 950 | if (sisusb->flagb0 != 0x16) { |
| 951 | packet.header = 0x001f; |
| 952 | packet.address = 0x00000180; |
| 953 | packet.data = flag | 0x16; |
| 954 | ret |= sisusb_send_bridge_packet(sisusb, 10, |
| 955 | &packet, 0); |
| 956 | sisusb->flagb0 = 0x16; |
| 957 | } |
| 958 | if (userbuffer) { |
| 959 | ret |= sisusb_send_bulk_msg(sisusb, |
| 960 | SISUSB_EP_GFX_BULK_OUT, |
| 961 | (length & ~3), |
| 962 | NULL, userbuffer, 0, |
| 963 | bytes_written, 0, 1); |
| 964 | userbuffer += (*bytes_written); |
| 965 | } else if (fromkern) { |
| 966 | ret |= sisusb_send_bulk_msg(sisusb, |
| 967 | SISUSB_EP_GFX_BULK_OUT, |
| 968 | (length & ~3), |
| 969 | kernbuffer, NULL, 0, |
| 970 | bytes_written, 0, 1); |
| 971 | kernbuffer += (*bytes_written); |
| 972 | } else { |
| 973 | ret |= sisusb_send_bulk_msg(sisusb, |
| 974 | SISUSB_EP_GFX_BULK_OUT, |
| 975 | (length & ~3), |
| 976 | NULL, NULL, index, |
| 977 | bytes_written, 0, 1); |
| 978 | kernbuffer += ((*bytes_written) & |
| 979 | (sisusb->obufsize-1)); |
| 980 | } |
| 981 | } |
| 982 | if (ret) { |
| 983 | msgcount++; |
| 984 | if (msgcount < 500) |
| 985 | printk(KERN_ERR |
| 986 | "sisusbvga[%d]: Wrote %Zd of " |
| 987 | "%d bytes, error %d\n", |
| 988 | sisusb->minor, *bytes_written, |
| 989 | length, ret); |
| 990 | else if (msgcount == 500) |
| 991 | printk(KERN_ERR |
| 992 | "sisusbvga[%d]: Too many errors" |
| 993 | ", logging stopped\n", |
| 994 | sisusb->minor); |
| 995 | } |
| 996 | addr += (*bytes_written); |
| 997 | length -= (*bytes_written); |
| 998 | } |
| 999 | |
| 1000 | if (ret) |
| 1001 | break; |
| 1002 | |
| 1003 | } |
| 1004 | |
| 1005 | return ret ? -EIO : 0; |
| 1006 | } |
| 1007 | |
| 1008 | static int sisusb_read_memio_byte(struct sisusb_usb_data *sisusb, int type, |
| 1009 | u32 addr, u8 *data) |
| 1010 | { |
| 1011 | struct sisusb_packet packet; |
| 1012 | int ret; |
| 1013 | |
| 1014 | CLEARPACKET(&packet); |
| 1015 | packet.header = (1 << (addr & 3)) | (type << 6); |
| 1016 | packet.address = addr & ~3; |
| 1017 | ret = sisusb_send_packet(sisusb, 6, &packet); |
| 1018 | *data = (u8)(packet.data >> ((addr & 3) << 3)); |
| 1019 | return ret; |
| 1020 | } |
| 1021 | |
| 1022 | static int sisusb_read_memio_word(struct sisusb_usb_data *sisusb, int type, |
| 1023 | u32 addr, u16 *data) |
| 1024 | { |
| 1025 | struct sisusb_packet packet; |
| 1026 | int ret = 0; |
| 1027 | |
| 1028 | CLEARPACKET(&packet); |
| 1029 | |
| 1030 | packet.address = addr & ~3; |
| 1031 | |
| 1032 | switch (addr & 3) { |
| 1033 | case 0: |
| 1034 | packet.header = (type << 6) | 0x0003; |
| 1035 | ret = sisusb_send_packet(sisusb, 6, &packet); |
| 1036 | *data = (u16)(packet.data); |
| 1037 | break; |
| 1038 | case 1: |
| 1039 | packet.header = (type << 6) | 0x0006; |
| 1040 | ret = sisusb_send_packet(sisusb, 6, &packet); |
| 1041 | *data = (u16)(packet.data >> 8); |
| 1042 | break; |
| 1043 | case 2: |
| 1044 | packet.header = (type << 6) | 0x000c; |
| 1045 | ret = sisusb_send_packet(sisusb, 6, &packet); |
| 1046 | *data = (u16)(packet.data >> 16); |
| 1047 | break; |
| 1048 | case 3: |
| 1049 | packet.header = (type << 6) | 0x0008; |
| 1050 | ret = sisusb_send_packet(sisusb, 6, &packet); |
| 1051 | *data = (u16)(packet.data >> 24); |
| 1052 | packet.header = (type << 6) | 0x0001; |
| 1053 | packet.address = (addr & ~3) + 4; |
| 1054 | ret |= sisusb_send_packet(sisusb, 6, &packet); |
| 1055 | *data |= (u16)(packet.data << 8); |
| 1056 | } |
| 1057 | |
| 1058 | return ret; |
| 1059 | } |
| 1060 | |
| 1061 | static int sisusb_read_memio_24bit(struct sisusb_usb_data *sisusb, int type, |
| 1062 | u32 addr, u32 *data) |
| 1063 | { |
| 1064 | struct sisusb_packet packet; |
| 1065 | int ret = 0; |
| 1066 | |
| 1067 | packet.address = addr & ~3; |
| 1068 | |
| 1069 | switch (addr & 3) { |
| 1070 | case 0: |
| 1071 | packet.header = (type << 6) | 0x0007; |
| 1072 | ret = sisusb_send_packet(sisusb, 6, &packet); |
| 1073 | *data = packet.data & 0x00ffffff; |
| 1074 | break; |
| 1075 | case 1: |
| 1076 | packet.header = (type << 6) | 0x000e; |
| 1077 | ret = sisusb_send_packet(sisusb, 6, &packet); |
| 1078 | *data = packet.data >> 8; |
| 1079 | break; |
| 1080 | case 2: |
| 1081 | packet.header = (type << 6) | 0x000c; |
| 1082 | ret = sisusb_send_packet(sisusb, 6, &packet); |
| 1083 | *data = packet.data >> 16; |
| 1084 | packet.header = (type << 6) | 0x0001; |
| 1085 | packet.address = (addr & ~3) + 4; |
| 1086 | ret |= sisusb_send_packet(sisusb, 6, &packet); |
| 1087 | *data |= ((packet.data & 0xff) << 16); |
| 1088 | break; |
| 1089 | case 3: |
| 1090 | packet.header = (type << 6) | 0x0008; |
| 1091 | ret = sisusb_send_packet(sisusb, 6, &packet); |
| 1092 | *data = packet.data >> 24; |
| 1093 | packet.header = (type << 6) | 0x0003; |
| 1094 | packet.address = (addr & ~3) + 4; |
| 1095 | ret |= sisusb_send_packet(sisusb, 6, &packet); |
| 1096 | *data |= ((packet.data & 0xffff) << 8); |
| 1097 | } |
| 1098 | |
| 1099 | return ret; |
| 1100 | } |
| 1101 | |
| 1102 | static int sisusb_read_memio_long(struct sisusb_usb_data *sisusb, int type, |
| 1103 | u32 addr, u32 *data) |
| 1104 | { |
| 1105 | struct sisusb_packet packet; |
| 1106 | int ret = 0; |
| 1107 | |
| 1108 | packet.address = addr & ~3; |
| 1109 | |
| 1110 | switch (addr & 3) { |
| 1111 | case 0: |
| 1112 | packet.header = (type << 6) | 0x000f; |
| 1113 | ret = sisusb_send_packet(sisusb, 6, &packet); |
| 1114 | *data = packet.data; |
| 1115 | break; |
| 1116 | case 1: |
| 1117 | packet.header = (type << 6) | 0x000e; |
| 1118 | ret = sisusb_send_packet(sisusb, 6, &packet); |
| 1119 | *data = packet.data >> 8; |
| 1120 | packet.header = (type << 6) | 0x0001; |
| 1121 | packet.address = (addr & ~3) + 4; |
| 1122 | ret |= sisusb_send_packet(sisusb, 6, &packet); |
| 1123 | *data |= (packet.data << 24); |
| 1124 | break; |
| 1125 | case 2: |
| 1126 | packet.header = (type << 6) | 0x000c; |
| 1127 | ret = sisusb_send_packet(sisusb, 6, &packet); |
| 1128 | *data = packet.data >> 16; |
| 1129 | packet.header = (type << 6) | 0x0003; |
| 1130 | packet.address = (addr & ~3) + 4; |
| 1131 | ret |= sisusb_send_packet(sisusb, 6, &packet); |
| 1132 | *data |= (packet.data << 16); |
| 1133 | break; |
| 1134 | case 3: |
| 1135 | packet.header = (type << 6) | 0x0008; |
| 1136 | ret = sisusb_send_packet(sisusb, 6, &packet); |
| 1137 | *data = packet.data >> 24; |
| 1138 | packet.header = (type << 6) | 0x0007; |
| 1139 | packet.address = (addr & ~3) + 4; |
| 1140 | ret |= sisusb_send_packet(sisusb, 6, &packet); |
| 1141 | *data |= (packet.data << 8); |
| 1142 | } |
| 1143 | |
| 1144 | return ret; |
| 1145 | } |
| 1146 | |
| 1147 | static int sisusb_read_mem_bulk(struct sisusb_usb_data *sisusb, u32 addr, |
| 1148 | char *kernbuffer, int length, |
| 1149 | char __user *userbuffer, ssize_t *bytes_read) |
| 1150 | { |
| 1151 | int ret = 0; |
| 1152 | char buf[4]; |
| 1153 | u16 swap16; |
| 1154 | u32 swap32; |
| 1155 | |
| 1156 | (*bytes_read = 0); |
| 1157 | |
| 1158 | length &= 0x00ffffff; |
| 1159 | |
| 1160 | while (length) { |
| 1161 | |
| 1162 | switch (length) { |
| 1163 | |
| 1164 | case 0: |
| 1165 | return ret; |
| 1166 | |
| 1167 | case 1: |
| 1168 | |
| 1169 | ret |= sisusb_read_memio_byte(sisusb, SISUSB_TYPE_MEM, |
| 1170 | addr, &buf[0]); |
| 1171 | if (!ret) { |
| 1172 | (*bytes_read)++; |
| 1173 | if (userbuffer) { |
| 1174 | if (put_user(buf[0], |
| 1175 | (u8 __user *)userbuffer)) { |
| 1176 | return -EFAULT; |
| 1177 | } |
| 1178 | } else { |
| 1179 | kernbuffer[0] = buf[0]; |
| 1180 | } |
| 1181 | } |
| 1182 | return ret; |
| 1183 | |
| 1184 | case 2: |
| 1185 | ret |= sisusb_read_memio_word(sisusb, SISUSB_TYPE_MEM, |
| 1186 | addr, &swap16); |
| 1187 | if (!ret) { |
| 1188 | (*bytes_read) += 2; |
| 1189 | if (userbuffer) { |
| 1190 | if (put_user(swap16, |
| 1191 | (u16 __user *)userbuffer)) |
| 1192 | return -EFAULT; |
| 1193 | } else { |
| 1194 | kernbuffer[0] = swap16 >> 8; |
| 1195 | kernbuffer[1] = swap16 & 0xff; |
| 1196 | } |
| 1197 | } |
| 1198 | return ret; |
| 1199 | |
| 1200 | case 3: |
| 1201 | ret |= sisusb_read_memio_24bit(sisusb, SISUSB_TYPE_MEM, |
| 1202 | addr, &swap32); |
| 1203 | if (!ret) { |
| 1204 | (*bytes_read) += 3; |
| 1205 | buf[0] = (swap32 >> 16) & 0xff; |
| 1206 | buf[1] = (swap32 >> 8) & 0xff; |
| 1207 | buf[2] = swap32 & 0xff; |
| 1208 | if (userbuffer) { |
| 1209 | if (copy_to_user(userbuffer, &buf[0], 3)) |
| 1210 | return -EFAULT; |
| 1211 | } else { |
| 1212 | kernbuffer[0] = buf[0]; |
| 1213 | kernbuffer[1] = buf[1]; |
| 1214 | kernbuffer[2] = buf[2]; |
| 1215 | } |
| 1216 | } |
| 1217 | return ret; |
| 1218 | |
| 1219 | default: |
| 1220 | ret |= sisusb_read_memio_long(sisusb, SISUSB_TYPE_MEM, |
| 1221 | addr, &swap32); |
| 1222 | if (!ret) { |
| 1223 | (*bytes_read) += 4; |
| 1224 | if (userbuffer) { |
| 1225 | if (put_user(swap32, |
| 1226 | (u32 __user *)userbuffer)) |
| 1227 | return -EFAULT; |
| 1228 | |
| 1229 | userbuffer += 4; |
| 1230 | } else { |
| 1231 | kernbuffer[0] = (swap32 >> 24) & 0xff; |
| 1232 | kernbuffer[1] = (swap32 >> 16) & 0xff; |
| 1233 | kernbuffer[2] = (swap32 >> 8) & 0xff; |
| 1234 | kernbuffer[3] = swap32 & 0xff; |
| 1235 | kernbuffer += 4; |
| 1236 | } |
| 1237 | addr += 4; |
| 1238 | length -= 4; |
| 1239 | } |
| 1240 | #if 0 /* That does not work, as EP 2 is an OUT EP! */ |
| 1241 | default: |
| 1242 | CLEARPACKET(&packet); |
| 1243 | packet.header = 0x001f; |
| 1244 | packet.address = 0x000001a0; |
| 1245 | packet.data = 0x00000006; |
| 1246 | ret |= sisusb_send_bridge_packet(sisusb, 10, |
| 1247 | &packet, 0); |
| 1248 | packet.header = 0x001f; |
| 1249 | packet.address = 0x000001b0; |
| 1250 | packet.data = (length & ~3) | 0x40000000; |
| 1251 | ret |= sisusb_send_bridge_packet(sisusb, 10, |
| 1252 | &packet, 0); |
| 1253 | packet.header = 0x001f; |
| 1254 | packet.address = 0x000001b4; |
| 1255 | packet.data = addr; |
| 1256 | ret |= sisusb_send_bridge_packet(sisusb, 10, |
| 1257 | &packet, 0); |
| 1258 | packet.header = 0x001f; |
| 1259 | packet.address = 0x000001a4; |
| 1260 | packet.data = 0x00000001; |
| 1261 | ret |= sisusb_send_bridge_packet(sisusb, 10, |
| 1262 | &packet, 0); |
| 1263 | if (userbuffer) { |
| 1264 | ret |= sisusb_recv_bulk_msg(sisusb, |
| 1265 | SISUSB_EP_GFX_BULK_IN, |
| 1266 | (length & ~3), |
| 1267 | NULL, userbuffer, |
| 1268 | bytes_read, 0); |
| 1269 | if (!ret) userbuffer += (*bytes_read); |
| 1270 | } else { |
| 1271 | ret |= sisusb_recv_bulk_msg(sisusb, |
| 1272 | SISUSB_EP_GFX_BULK_IN, |
| 1273 | (length & ~3), |
| 1274 | kernbuffer, NULL, |
| 1275 | bytes_read, 0); |
| 1276 | if (!ret) kernbuffer += (*bytes_read); |
| 1277 | } |
| 1278 | addr += (*bytes_read); |
| 1279 | length -= (*bytes_read); |
| 1280 | #endif |
| 1281 | } |
| 1282 | |
| 1283 | if (ret) |
| 1284 | break; |
| 1285 | } |
| 1286 | |
| 1287 | return ret; |
| 1288 | } |
| 1289 | |
| 1290 | /* High level: Gfx (indexed) register access */ |
| 1291 | |
| 1292 | static int |
| 1293 | sisusb_setidxreg(struct sisusb_usb_data *sisusb, int port, u8 index, u8 data) |
| 1294 | { |
| 1295 | int ret; |
| 1296 | ret = sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, port, index); |
| 1297 | ret |= sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, port + 1, data); |
| 1298 | return ret; |
| 1299 | } |
| 1300 | |
| 1301 | static int |
| 1302 | sisusb_getidxreg(struct sisusb_usb_data *sisusb, int port, u8 index, u8 *data) |
| 1303 | { |
| 1304 | int ret; |
| 1305 | ret = sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, port, index); |
| 1306 | ret |= sisusb_read_memio_byte(sisusb, SISUSB_TYPE_IO, port + 1, data); |
| 1307 | return ret; |
| 1308 | } |
| 1309 | |
| 1310 | static int |
| 1311 | sisusb_setidxregandor(struct sisusb_usb_data *sisusb, int port, u8 idx, |
| 1312 | u8 myand, u8 myor) |
| 1313 | { |
| 1314 | int ret; |
| 1315 | u8 tmp; |
| 1316 | |
| 1317 | ret = sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, port, idx); |
| 1318 | ret |= sisusb_read_memio_byte(sisusb, SISUSB_TYPE_IO, port + 1, &tmp); |
| 1319 | tmp &= myand; |
| 1320 | tmp |= myor; |
| 1321 | ret |= sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, port + 1, tmp); |
| 1322 | return ret; |
| 1323 | } |
| 1324 | |
| 1325 | static int |
| 1326 | sisusb_setidxregmask(struct sisusb_usb_data *sisusb, int port, u8 idx, |
| 1327 | u8 data, u8 mask) |
| 1328 | { |
| 1329 | int ret; |
| 1330 | u8 tmp; |
| 1331 | ret = sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, port, idx); |
| 1332 | ret |= sisusb_read_memio_byte(sisusb, SISUSB_TYPE_IO, port + 1, &tmp); |
| 1333 | tmp &= ~(mask); |
| 1334 | tmp |= (data & mask); |
| 1335 | ret |= sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, port + 1, tmp); |
| 1336 | return ret; |
| 1337 | } |
| 1338 | |
| 1339 | static int |
| 1340 | sisusb_setidxregor(struct sisusb_usb_data *sisusb, int port, u8 index, u8 myor) |
| 1341 | { |
| 1342 | return(sisusb_setidxregandor(sisusb, port, index, 0xff, myor)); |
| 1343 | } |
| 1344 | |
| 1345 | static int |
| 1346 | sisusb_setidxregand(struct sisusb_usb_data *sisusb, int port, u8 idx, u8 myand) |
| 1347 | { |
| 1348 | return(sisusb_setidxregandor(sisusb, port, idx, myand, 0x00)); |
| 1349 | } |
| 1350 | |
| 1351 | /* access pci config registers (reg numbers 0, 4, 8, etc) */ |
| 1352 | |
| 1353 | static int |
| 1354 | sisusb_write_pci_config(struct sisusb_usb_data *sisusb, int regnum, u32 data) |
| 1355 | { |
| 1356 | struct sisusb_packet packet; |
| 1357 | int ret; |
| 1358 | |
| 1359 | packet.header = 0x008f; |
| 1360 | packet.address = regnum | 0x10000; |
| 1361 | packet.data = data; |
| 1362 | ret = sisusb_send_packet(sisusb, 10, &packet); |
| 1363 | return ret; |
| 1364 | } |
| 1365 | |
| 1366 | static int |
| 1367 | sisusb_read_pci_config(struct sisusb_usb_data *sisusb, int regnum, u32 *data) |
| 1368 | { |
| 1369 | struct sisusb_packet packet; |
| 1370 | int ret; |
| 1371 | |
| 1372 | packet.header = 0x008f; |
| 1373 | packet.address = (u32)regnum | 0x10000; |
| 1374 | ret = sisusb_send_packet(sisusb, 6, &packet); |
| 1375 | *data = packet.data; |
| 1376 | return ret; |
| 1377 | } |
| 1378 | |
| 1379 | /* Clear video RAM */ |
| 1380 | |
| 1381 | static int |
| 1382 | sisusb_clear_vram(struct sisusb_usb_data *sisusb, u32 address, int length) |
| 1383 | { |
| 1384 | int ret, i; |
| 1385 | ssize_t j; |
| 1386 | |
| 1387 | if (address < sisusb->vrambase) |
| 1388 | return 1; |
| 1389 | |
| 1390 | if (address >= sisusb->vrambase + sisusb->vramsize) |
| 1391 | return 1; |
| 1392 | |
| 1393 | if (address + length > sisusb->vrambase + sisusb->vramsize) |
| 1394 | length = sisusb->vrambase + sisusb->vramsize - address; |
| 1395 | |
| 1396 | if (length <= 0) |
| 1397 | return 0; |
| 1398 | |
| 1399 | /* allocate free buffer/urb and clear the buffer */ |
| 1400 | if ((i = sisusb_alloc_outbuf(sisusb)) < 0) |
| 1401 | return -EBUSY; |
| 1402 | |
| 1403 | memset(sisusb->obuf[i], 0, sisusb->obufsize); |
| 1404 | |
| 1405 | /* We can write a length > buffer size here. The buffer |
| 1406 | * data will simply be re-used (like a ring-buffer). |
| 1407 | */ |
| 1408 | ret = sisusb_write_mem_bulk(sisusb, address, NULL, length, NULL, i, &j); |
| 1409 | |
| 1410 | /* Free the buffer/urb */ |
| 1411 | sisusb_free_outbuf(sisusb, i); |
| 1412 | |
| 1413 | return ret; |
| 1414 | } |
| 1415 | |
| 1416 | /* Initialize the graphics core (return 0 on success) |
| 1417 | * This resets the graphics hardware and puts it into |
| 1418 | * a defined mode (640x480@60Hz) |
| 1419 | */ |
| 1420 | |
| 1421 | #define GETREG(r,d) sisusb_read_memio_byte(sisusb, SISUSB_TYPE_IO, r, d) |
| 1422 | #define SETREG(r,d) sisusb_write_memio_byte(sisusb, SISUSB_TYPE_IO, r, d) |
| 1423 | #define SETIREG(r,i,d) sisusb_setidxreg(sisusb, r, i, d) |
| 1424 | #define GETIREG(r,i,d) sisusb_getidxreg(sisusb, r, i, d) |
| 1425 | #define SETIREGOR(r,i,o) sisusb_setidxregor(sisusb, r, i, o) |
| 1426 | #define SETIREGAND(r,i,a) sisusb_setidxregand(sisusb, r, i, a) |
| 1427 | #define SETIREGANDOR(r,i,a,o) sisusb_setidxregandor(sisusb, r, i, a, o) |
| 1428 | #define READL(a,d) sisusb_read_memio_long(sisusb, SISUSB_TYPE_MEM, a, d) |
| 1429 | #define WRITEL(a,d) sisusb_write_memio_long(sisusb, SISUSB_TYPE_MEM, a, d) |
| 1430 | #define READB(a,d) sisusb_read_memio_byte(sisusb, SISUSB_TYPE_MEM, a, d) |
| 1431 | #define WRITEB(a,d) sisusb_write_memio_byte(sisusb, SISUSB_TYPE_MEM, a, d) |
| 1432 | |
| 1433 | static int |
| 1434 | sisusb_triggersr16(struct sisusb_usb_data *sisusb, u8 ramtype) |
| 1435 | { |
| 1436 | int ret; |
| 1437 | u8 tmp8; |
| 1438 | |
| 1439 | ret = GETIREG(SISSR, 0x16, &tmp8); |
| 1440 | if (ramtype <= 1) { |
| 1441 | tmp8 &= 0x3f; |
| 1442 | ret |= SETIREG(SISSR, 0x16, tmp8); |
| 1443 | tmp8 |= 0x80; |
| 1444 | ret |= SETIREG(SISSR, 0x16, tmp8); |
| 1445 | } else { |
| 1446 | tmp8 |= 0xc0; |
| 1447 | ret |= SETIREG(SISSR, 0x16, tmp8); |
| 1448 | tmp8 &= 0x0f; |
| 1449 | ret |= SETIREG(SISSR, 0x16, tmp8); |
| 1450 | tmp8 |= 0x80; |
| 1451 | ret |= SETIREG(SISSR, 0x16, tmp8); |
| 1452 | tmp8 &= 0x0f; |
| 1453 | ret |= SETIREG(SISSR, 0x16, tmp8); |
| 1454 | tmp8 |= 0xd0; |
| 1455 | ret |= SETIREG(SISSR, 0x16, tmp8); |
| 1456 | tmp8 &= 0x0f; |
| 1457 | ret |= SETIREG(SISSR, 0x16, tmp8); |
| 1458 | tmp8 |= 0xa0; |
| 1459 | ret |= SETIREG(SISSR, 0x16, tmp8); |
| 1460 | } |
| 1461 | return ret; |
| 1462 | } |
| 1463 | |
| 1464 | static int |
| 1465 | sisusb_getbuswidth(struct sisusb_usb_data *sisusb, int *bw, int *chab) |
| 1466 | { |
| 1467 | int ret; |
| 1468 | u8 ramtype, done = 0; |
| 1469 | u32 t0, t1, t2, t3; |
| 1470 | u32 ramptr = SISUSB_PCI_MEMBASE; |
| 1471 | |
| 1472 | ret = GETIREG(SISSR, 0x3a, &ramtype); |
| 1473 | ramtype &= 3; |
| 1474 | |
| 1475 | ret |= SETIREG(SISSR, 0x13, 0x00); |
| 1476 | |
| 1477 | if (ramtype <= 1) { |
| 1478 | ret |= SETIREG(SISSR, 0x14, 0x12); |
| 1479 | ret |= SETIREGAND(SISSR, 0x15, 0xef); |
| 1480 | } else { |
| 1481 | ret |= SETIREG(SISSR, 0x14, 0x02); |
| 1482 | } |
| 1483 | |
| 1484 | ret |= sisusb_triggersr16(sisusb, ramtype); |
| 1485 | ret |= WRITEL(ramptr + 0, 0x01234567); |
| 1486 | ret |= WRITEL(ramptr + 4, 0x456789ab); |
| 1487 | ret |= WRITEL(ramptr + 8, 0x89abcdef); |
| 1488 | ret |= WRITEL(ramptr + 12, 0xcdef0123); |
| 1489 | ret |= WRITEL(ramptr + 16, 0x55555555); |
| 1490 | ret |= WRITEL(ramptr + 20, 0x55555555); |
| 1491 | ret |= WRITEL(ramptr + 24, 0xffffffff); |
| 1492 | ret |= WRITEL(ramptr + 28, 0xffffffff); |
| 1493 | ret |= READL(ramptr + 0, &t0); |
| 1494 | ret |= READL(ramptr + 4, &t1); |
| 1495 | ret |= READL(ramptr + 8, &t2); |
| 1496 | ret |= READL(ramptr + 12, &t3); |
| 1497 | |
| 1498 | if (ramtype <= 1) { |
| 1499 | |
| 1500 | *chab = 0; *bw = 64; |
| 1501 | |
| 1502 | if ((t3 != 0xcdef0123) || (t2 != 0x89abcdef)) { |
| 1503 | if ((t1 == 0x456789ab) && (t0 == 0x01234567)) { |
| 1504 | *chab = 0; *bw = 64; |
| 1505 | ret |= SETIREGAND(SISSR, 0x14, 0xfd); |
| 1506 | } |
| 1507 | } |
| 1508 | if ((t1 != 0x456789ab) || (t0 != 0x01234567)) { |
| 1509 | *chab = 1; *bw = 64; |
| 1510 | ret |= SETIREGANDOR(SISSR, 0x14, 0xfc,0x01); |
| 1511 | |
| 1512 | ret |= sisusb_triggersr16(sisusb, ramtype); |
| 1513 | ret |= WRITEL(ramptr + 0, 0x89abcdef); |
| 1514 | ret |= WRITEL(ramptr + 4, 0xcdef0123); |
| 1515 | ret |= WRITEL(ramptr + 8, 0x55555555); |
| 1516 | ret |= WRITEL(ramptr + 12, 0x55555555); |
| 1517 | ret |= WRITEL(ramptr + 16, 0xaaaaaaaa); |
| 1518 | ret |= WRITEL(ramptr + 20, 0xaaaaaaaa); |
| 1519 | ret |= READL(ramptr + 4, &t1); |
| 1520 | |
| 1521 | if (t1 != 0xcdef0123) { |
| 1522 | *bw = 32; |
| 1523 | ret |= SETIREGOR(SISSR, 0x15, 0x10); |
| 1524 | } |
| 1525 | } |
| 1526 | |
| 1527 | } else { |
| 1528 | |
| 1529 | *chab = 0; *bw = 64; /* default: cha, bw = 64 */ |
| 1530 | |
| 1531 | done = 0; |
| 1532 | |
| 1533 | if (t1 == 0x456789ab) { |
| 1534 | if (t0 == 0x01234567) { |
| 1535 | *chab = 0; *bw = 64; |
| 1536 | done = 1; |
| 1537 | } |
| 1538 | } else { |
| 1539 | if (t0 == 0x01234567) { |
| 1540 | *chab = 0; *bw = 32; |
| 1541 | ret |= SETIREG(SISSR, 0x14, 0x00); |
| 1542 | done = 1; |
| 1543 | } |
| 1544 | } |
| 1545 | |
| 1546 | if (!done) { |
| 1547 | ret |= SETIREG(SISSR, 0x14, 0x03); |
| 1548 | ret |= sisusb_triggersr16(sisusb, ramtype); |
| 1549 | |
| 1550 | ret |= WRITEL(ramptr + 0, 0x01234567); |
| 1551 | ret |= WRITEL(ramptr + 4, 0x456789ab); |
| 1552 | ret |= WRITEL(ramptr + 8, 0x89abcdef); |
| 1553 | ret |= WRITEL(ramptr + 12, 0xcdef0123); |
| 1554 | ret |= WRITEL(ramptr + 16, 0x55555555); |
| 1555 | ret |= WRITEL(ramptr + 20, 0x55555555); |
| 1556 | ret |= WRITEL(ramptr + 24, 0xffffffff); |
| 1557 | ret |= WRITEL(ramptr + 28, 0xffffffff); |
| 1558 | ret |= READL(ramptr + 0, &t0); |
| 1559 | ret |= READL(ramptr + 4, &t1); |
| 1560 | |
| 1561 | if (t1 == 0x456789ab) { |
| 1562 | if (t0 == 0x01234567) { |
| 1563 | *chab = 1; *bw = 64; |
| 1564 | return ret; |
| 1565 | } /* else error */ |
| 1566 | } else { |
| 1567 | if (t0 == 0x01234567) { |
| 1568 | *chab = 1; *bw = 32; |
| 1569 | ret |= SETIREG(SISSR, 0x14, 0x01); |
| 1570 | } /* else error */ |
| 1571 | } |
| 1572 | } |
| 1573 | } |
| 1574 | return ret; |
| 1575 | } |
| 1576 | |
| 1577 | static int |
| 1578 | sisusb_verify_mclk(struct sisusb_usb_data *sisusb) |
| 1579 | { |
| 1580 | int ret = 0; |
| 1581 | u32 ramptr = SISUSB_PCI_MEMBASE; |
| 1582 | u8 tmp1, tmp2, i, j; |
| 1583 | |
| 1584 | ret |= WRITEB(ramptr, 0xaa); |
| 1585 | ret |= WRITEB(ramptr + 16, 0x55); |
| 1586 | ret |= READB(ramptr, &tmp1); |
| 1587 | ret |= READB(ramptr + 16, &tmp2); |
| 1588 | if ((tmp1 != 0xaa) || (tmp2 != 0x55)) { |
| 1589 | for (i = 0, j = 16; i < 2; i++, j += 16) { |
| 1590 | ret |= GETIREG(SISSR, 0x21, &tmp1); |
| 1591 | ret |= SETIREGAND(SISSR, 0x21, (tmp1 & 0xfb)); |
| 1592 | ret |= SETIREGOR(SISSR, 0x3c, 0x01); /* not on 330 */ |
| 1593 | ret |= SETIREGAND(SISSR, 0x3c, 0xfe); /* not on 330 */ |
| 1594 | ret |= SETIREG(SISSR, 0x21, tmp1); |
| 1595 | ret |= WRITEB(ramptr + 16 + j, j); |
| 1596 | ret |= READB(ramptr + 16 + j, &tmp1); |
| 1597 | if (tmp1 == j) { |
| 1598 | ret |= WRITEB(ramptr + j, j); |
| 1599 | break; |
| 1600 | } |
| 1601 | } |
| 1602 | } |
| 1603 | return ret; |
| 1604 | } |
| 1605 | |
| 1606 | static int |
| 1607 | sisusb_set_rank(struct sisusb_usb_data *sisusb, int *iret, int index, |
| 1608 | u8 rankno, u8 chab, const u8 dramtype[][5], |
| 1609 | int bw) |
| 1610 | { |
| 1611 | int ret = 0, ranksize; |
| 1612 | u8 tmp; |
| 1613 | |
| 1614 | *iret = 0; |
| 1615 | |
| 1616 | if ((rankno == 2) && (dramtype[index][0] == 2)) |
| 1617 | return ret; |
| 1618 | |
| 1619 | ranksize = dramtype[index][3] / 2 * bw / 32; |
| 1620 | |
| 1621 | if ((ranksize * rankno) > 128) |
| 1622 | return ret; |
| 1623 | |
| 1624 | tmp = 0; |
| 1625 | while ((ranksize >>= 1) > 0) tmp += 0x10; |
| 1626 | tmp |= ((rankno - 1) << 2); |
| 1627 | tmp |= ((bw / 64) & 0x02); |
| 1628 | tmp |= (chab & 0x01); |
| 1629 | |
| 1630 | ret = SETIREG(SISSR, 0x14, tmp); |
| 1631 | ret |= sisusb_triggersr16(sisusb, 0); /* sic! */ |
| 1632 | |
| 1633 | *iret = 1; |
| 1634 | |
| 1635 | return ret; |
| 1636 | } |
| 1637 | |
| 1638 | static int |
| 1639 | sisusb_check_rbc(struct sisusb_usb_data *sisusb, int *iret, u32 inc, int testn) |
| 1640 | { |
| 1641 | int ret = 0, i; |
| 1642 | u32 j, tmp; |
| 1643 | |
| 1644 | *iret = 0; |
| 1645 | |
| 1646 | for (i = 0, j = 0; i < testn; i++) { |
| 1647 | ret |= WRITEL(sisusb->vrambase + j, j); |
| 1648 | j += inc; |
| 1649 | } |
| 1650 | |
| 1651 | for (i = 0, j = 0; i < testn; i++) { |
| 1652 | ret |= READL(sisusb->vrambase + j, &tmp); |
| 1653 | if (tmp != j) return ret; |
| 1654 | j += inc; |
| 1655 | } |
| 1656 | |
| 1657 | *iret = 1; |
| 1658 | return ret; |
| 1659 | } |
| 1660 | |
| 1661 | static int |
| 1662 | sisusb_check_ranks(struct sisusb_usb_data *sisusb, int *iret, int rankno, |
| 1663 | int idx, int bw, const u8 rtype[][5]) |
| 1664 | { |
| 1665 | int ret = 0, i, i2ret; |
| 1666 | u32 inc; |
| 1667 | |
| 1668 | *iret = 0; |
| 1669 | |
| 1670 | for (i = rankno; i >= 1; i--) { |
| 1671 | inc = 1 << (rtype[idx][2] + |
| 1672 | rtype[idx][1] + |
| 1673 | rtype[idx][0] + |
| 1674 | bw / 64 + i); |
| 1675 | ret |= sisusb_check_rbc(sisusb, &i2ret, inc, 2); |
| 1676 | if (!i2ret) |
| 1677 | return ret; |
| 1678 | } |
| 1679 | |
| 1680 | inc = 1 << (rtype[idx][2] + bw / 64 + 2); |
| 1681 | ret |= sisusb_check_rbc(sisusb, &i2ret, inc, 4); |
| 1682 | if (!i2ret) |
| 1683 | return ret; |
| 1684 | |
| 1685 | inc = 1 << (10 + bw / 64); |
| 1686 | ret |= sisusb_check_rbc(sisusb, &i2ret, inc, 2); |
| 1687 | if (!i2ret) |
| 1688 | return ret; |
| 1689 | |
| 1690 | *iret = 1; |
| 1691 | return ret; |
| 1692 | } |
| 1693 | |
| 1694 | static int |
| 1695 | sisusb_get_sdram_size(struct sisusb_usb_data *sisusb, int *iret, int bw, |
| 1696 | int chab) |
| 1697 | { |
| 1698 | int ret = 0, i2ret = 0, i, j; |
| 1699 | static const u8 sdramtype[13][5] = { |
| 1700 | { 2, 12, 9, 64, 0x35 }, |
| 1701 | { 1, 13, 9, 64, 0x44 }, |
| 1702 | { 2, 12, 8, 32, 0x31 }, |
| 1703 | { 2, 11, 9, 32, 0x25 }, |
| 1704 | { 1, 12, 9, 32, 0x34 }, |
| 1705 | { 1, 13, 8, 32, 0x40 }, |
| 1706 | { 2, 11, 8, 16, 0x21 }, |
| 1707 | { 1, 12, 8, 16, 0x30 }, |
| 1708 | { 1, 11, 9, 16, 0x24 }, |
| 1709 | { 1, 11, 8, 8, 0x20 }, |
| 1710 | { 2, 9, 8, 4, 0x01 }, |
| 1711 | { 1, 10, 8, 4, 0x10 }, |
| 1712 | { 1, 9, 8, 2, 0x00 } |
| 1713 | }; |
| 1714 | |
| 1715 | *iret = 1; /* error */ |
| 1716 | |
| 1717 | for (i = 0; i < 13; i++) { |
| 1718 | ret |= SETIREGANDOR(SISSR, 0x13, 0x80, sdramtype[i][4]); |
| 1719 | for (j = 2; j > 0; j--) { |
| 1720 | ret |= sisusb_set_rank(sisusb, &i2ret, i, j, |
| 1721 | chab, sdramtype, bw); |
| 1722 | if (!i2ret) |
| 1723 | continue; |
| 1724 | |
| 1725 | ret |= sisusb_check_ranks(sisusb, &i2ret, j, i, |
| 1726 | bw, sdramtype); |
| 1727 | if (i2ret) { |
| 1728 | *iret = 0; /* ram size found */ |
| 1729 | return ret; |
| 1730 | } |
| 1731 | } |
| 1732 | } |
| 1733 | |
| 1734 | return ret; |
| 1735 | } |
| 1736 | |
| 1737 | static int |
| 1738 | sisusb_setup_screen(struct sisusb_usb_data *sisusb, int clrall, int drwfr) |
| 1739 | { |
| 1740 | int ret = 0; |
| 1741 | u32 address; |
| 1742 | int i, length, modex, modey, bpp; |
| 1743 | |
| 1744 | modex = 640; modey = 480; bpp = 2; |
| 1745 | |
| 1746 | address = sisusb->vrambase; /* Clear video ram */ |
| 1747 | |
| 1748 | if (clrall) |
| 1749 | length = sisusb->vramsize; |
| 1750 | else |
| 1751 | length = modex * bpp * modey; |
| 1752 | |
| 1753 | ret = sisusb_clear_vram(sisusb, address, length); |
| 1754 | |
| 1755 | if (!ret && drwfr) { |
| 1756 | for (i = 0; i < modex; i++) { |
| 1757 | address = sisusb->vrambase + (i * bpp); |
| 1758 | ret |= sisusb_write_memio_word(sisusb, SISUSB_TYPE_MEM, |
| 1759 | address, 0xf100); |
| 1760 | address += (modex * (modey-1) * bpp); |
| 1761 | ret |= sisusb_write_memio_word(sisusb, SISUSB_TYPE_MEM, |
| 1762 | address, 0xf100); |
| 1763 | } |
| 1764 | for (i = 0; i < modey; i++) { |
| 1765 | address = sisusb->vrambase + ((i * modex) * bpp); |
| 1766 | ret |= sisusb_write_memio_word(sisusb, SISUSB_TYPE_MEM, |
| 1767 | address, 0xf100); |
| 1768 | address += ((modex - 1) * bpp); |
| 1769 | ret |= sisusb_write_memio_word(sisusb, SISUSB_TYPE_MEM, |
| 1770 | address, 0xf100); |
| 1771 | } |
| 1772 | } |
| 1773 | |
| 1774 | return ret; |
| 1775 | } |
| 1776 | |
| 1777 | static int |
| 1778 | sisusb_set_default_mode(struct sisusb_usb_data *sisusb, int touchengines) |
| 1779 | { |
| 1780 | int ret = 0, i, j, modex, modey, bpp, du; |
| 1781 | u8 sr31, cr63, tmp8; |
| 1782 | static const char attrdata[] = { |
| 1783 | 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07, |
| 1784 | 0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f, |
| 1785 | 0x01,0x00,0x00,0x00 |
| 1786 | }; |
| 1787 | static const char crtcrdata[] = { |
| 1788 | 0x5f,0x4f,0x50,0x82,0x54,0x80,0x0b,0x3e, |
| 1789 | 0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00, |
| 1790 | 0xea,0x8c,0xdf,0x28,0x40,0xe7,0x04,0xa3, |
| 1791 | 0xff |
| 1792 | }; |
| 1793 | static const char grcdata[] = { |
| 1794 | 0x00,0x00,0x00,0x00,0x00,0x40,0x05,0x0f, |
| 1795 | 0xff |
| 1796 | }; |
| 1797 | static const char crtcdata[] = { |
| 1798 | 0x5f,0x4f,0x4f,0x83,0x55,0x81,0x0b,0x3e, |
| 1799 | 0xe9,0x8b,0xdf,0xe8,0x0c,0x00,0x00,0x05, |
| 1800 | 0x00 |
| 1801 | }; |
| 1802 | |
| 1803 | modex = 640; modey = 480; bpp = 2; |
| 1804 | |
| 1805 | GETIREG(SISSR, 0x31, &sr31); |
| 1806 | GETIREG(SISCR, 0x63, &cr63); |
| 1807 | SETIREGOR(SISSR, 0x01, 0x20); |
| 1808 | SETIREG(SISCR, 0x63, cr63 & 0xbf); |
| 1809 | SETIREGOR(SISCR, 0x17, 0x80); |
| 1810 | SETIREGOR(SISSR, 0x1f, 0x04); |
| 1811 | SETIREGAND(SISSR, 0x07, 0xfb); |
| 1812 | SETIREG(SISSR, 0x00, 0x03); /* seq */ |
| 1813 | SETIREG(SISSR, 0x01, 0x21); |
| 1814 | SETIREG(SISSR, 0x02, 0x0f); |
| 1815 | SETIREG(SISSR, 0x03, 0x00); |
| 1816 | SETIREG(SISSR, 0x04, 0x0e); |
| 1817 | SETREG(SISMISCW, 0x23); /* misc */ |
| 1818 | for (i = 0; i <= 0x18; i++) { /* crtc */ |
| 1819 | SETIREG(SISCR, i, crtcrdata[i]); |
| 1820 | } |
| 1821 | for (i = 0; i <= 0x13; i++) { /* att */ |
| 1822 | GETREG(SISINPSTAT, &tmp8); |
| 1823 | SETREG(SISAR, i); |
| 1824 | SETREG(SISAR, attrdata[i]); |
| 1825 | } |
| 1826 | GETREG(SISINPSTAT, &tmp8); |
| 1827 | SETREG(SISAR, 0x14); |
| 1828 | SETREG(SISAR, 0x00); |
| 1829 | GETREG(SISINPSTAT, &tmp8); |
| 1830 | SETREG(SISAR, 0x20); |
| 1831 | GETREG(SISINPSTAT, &tmp8); |
| 1832 | for (i = 0; i <= 0x08; i++) { /* grc */ |
| 1833 | SETIREG(SISGR, i, grcdata[i]); |
| 1834 | } |
| 1835 | SETIREGAND(SISGR, 0x05, 0xbf); |
| 1836 | for (i = 0x0A; i <= 0x0E; i++) { /* clr ext */ |
| 1837 | SETIREG(SISSR, i, 0x00); |
| 1838 | } |
| 1839 | SETIREGAND(SISSR, 0x37, 0xfe); |
| 1840 | SETREG(SISMISCW, 0xef); /* sync */ |
| 1841 | SETIREG(SISCR, 0x11, 0x00); /* crtc */ |
| 1842 | for (j = 0x00, i = 0; i <= 7; i++, j++) { |
| 1843 | SETIREG(SISCR, j, crtcdata[i]); |
| 1844 | } |
| 1845 | for (j = 0x10; i <= 10; i++, j++) { |
| 1846 | SETIREG(SISCR, j, crtcdata[i]); |
| 1847 | } |
| 1848 | for (j = 0x15; i <= 12; i++, j++) { |
| 1849 | SETIREG(SISCR, j, crtcdata[i]); |
| 1850 | } |
| 1851 | for (j = 0x0A; i <= 15; i++, j++) { |
| 1852 | SETIREG(SISSR, j, crtcdata[i]); |
| 1853 | } |
| 1854 | SETIREG(SISSR, 0x0E, (crtcdata[16] & 0xE0)); |
| 1855 | SETIREGANDOR(SISCR, 0x09, 0x5f, ((crtcdata[16] & 0x01) << 5)); |
| 1856 | SETIREG(SISCR, 0x14, 0x4f); |
| 1857 | du = (modex / 16) * (bpp * 2); /* offset/pitch */ |
| 1858 | if (modex % 16) du += bpp; |
| 1859 | SETIREGANDOR(SISSR, 0x0e, 0xf0, ((du >> 8) & 0x0f)); |
| 1860 | SETIREG(SISCR, 0x13, (du & 0xff)); |
| 1861 | du <<= 5; |
| 1862 | tmp8 = du >> 8; |
| 1863 | if (du & 0xff) tmp8++; |
| 1864 | SETIREG(SISSR, 0x10, tmp8); |
| 1865 | SETIREG(SISSR, 0x31, 0x00); /* VCLK */ |
| 1866 | SETIREG(SISSR, 0x2b, 0x1b); |
| 1867 | SETIREG(SISSR, 0x2c, 0xe1); |
| 1868 | SETIREG(SISSR, 0x2d, 0x01); |
| 1869 | SETIREGAND(SISSR, 0x3d, 0xfe); /* FIFO */ |
| 1870 | SETIREG(SISSR, 0x08, 0xae); |
| 1871 | SETIREGAND(SISSR, 0x09, 0xf0); |
| 1872 | SETIREG(SISSR, 0x08, 0x34); |
| 1873 | SETIREGOR(SISSR, 0x3d, 0x01); |
| 1874 | SETIREGAND(SISSR, 0x1f, 0x3f); /* mode regs */ |
| 1875 | SETIREGANDOR(SISSR, 0x06, 0xc0, 0x0a); |
| 1876 | SETIREG(SISCR, 0x19, 0x00); |
| 1877 | SETIREGAND(SISCR, 0x1a, 0xfc); |
| 1878 | SETIREGAND(SISSR, 0x0f, 0xb7); |
| 1879 | SETIREGAND(SISSR, 0x31, 0xfb); |
| 1880 | SETIREGANDOR(SISSR, 0x21, 0x1f, 0xa0); |
| 1881 | SETIREGAND(SISSR, 0x32, 0xf3); |
| 1882 | SETIREGANDOR(SISSR, 0x07, 0xf8, 0x03); |
| 1883 | SETIREG(SISCR, 0x52, 0x6c); |
| 1884 | |
| 1885 | SETIREG(SISCR, 0x0d, 0x00); /* adjust frame */ |
| 1886 | SETIREG(SISCR, 0x0c, 0x00); |
| 1887 | SETIREG(SISSR, 0x0d, 0x00); |
| 1888 | SETIREGAND(SISSR, 0x37, 0xfe); |
| 1889 | |
| 1890 | SETIREG(SISCR, 0x32, 0x20); |
| 1891 | SETIREGAND(SISSR, 0x01, 0xdf); /* enable display */ |
| 1892 | SETIREG(SISCR, 0x63, (cr63 & 0xbf)); |
| 1893 | SETIREG(SISSR, 0x31, (sr31 & 0xfb)); |
| 1894 | |
| 1895 | if (touchengines) { |
| 1896 | SETIREG(SISSR, 0x20, 0xa1); /* enable engines */ |
| 1897 | SETIREGOR(SISSR, 0x1e, 0x5a); |
| 1898 | |
| 1899 | SETIREG(SISSR, 0x26, 0x01); /* disable cmdqueue */ |
| 1900 | SETIREG(SISSR, 0x27, 0x1f); |
| 1901 | SETIREG(SISSR, 0x26, 0x00); |
| 1902 | } |
| 1903 | |
| 1904 | SETIREG(SISCR, 0x34, 0x44); /* we just set std mode #44 */ |
| 1905 | |
| 1906 | return ret; |
| 1907 | } |
| 1908 | |
| 1909 | static int |
| 1910 | sisusb_init_gfxcore(struct sisusb_usb_data *sisusb) |
| 1911 | { |
| 1912 | int ret = 0, i, j, bw, chab, iret, retry = 3; |
| 1913 | u8 tmp8, ramtype; |
| 1914 | u32 tmp32; |
| 1915 | static const char mclktable[] = { |
| 1916 | 0x3b, 0x22, 0x01, 143, |
| 1917 | 0x3b, 0x22, 0x01, 143, |
| 1918 | 0x3b, 0x22, 0x01, 143, |
| 1919 | 0x3b, 0x22, 0x01, 143 |
| 1920 | }; |
| 1921 | static const char eclktable[] = { |
| 1922 | 0x3b, 0x22, 0x01, 143, |
| 1923 | 0x3b, 0x22, 0x01, 143, |
| 1924 | 0x3b, 0x22, 0x01, 143, |
| 1925 | 0x3b, 0x22, 0x01, 143 |
| 1926 | }; |
| 1927 | static const char ramtypetable1[] = { |
| 1928 | 0x00, 0x04, 0x60, 0x60, |
| 1929 | 0x0f, 0x0f, 0x1f, 0x1f, |
| 1930 | 0xba, 0xba, 0xba, 0xba, |
| 1931 | 0xa9, 0xa9, 0xac, 0xac, |
| 1932 | 0xa0, 0xa0, 0xa0, 0xa8, |
| 1933 | 0x00, 0x00, 0x02, 0x02, |
| 1934 | 0x30, 0x30, 0x40, 0x40 |
| 1935 | }; |
| 1936 | static const char ramtypetable2[] = { |
| 1937 | 0x77, 0x77, 0x44, 0x44, |
| 1938 | 0x77, 0x77, 0x44, 0x44, |
| 1939 | 0x00, 0x00, 0x00, 0x00, |
| 1940 | 0x5b, 0x5b, 0xab, 0xab, |
| 1941 | 0x00, 0x00, 0xf0, 0xf8 |
| 1942 | }; |
| 1943 | |
| 1944 | while (retry--) { |
| 1945 | |
| 1946 | /* Enable VGA */ |
| 1947 | ret = GETREG(SISVGAEN, &tmp8); |
| 1948 | ret |= SETREG(SISVGAEN, (tmp8 | 0x01)); |
| 1949 | |
| 1950 | /* Enable GPU access to VRAM */ |
| 1951 | ret |= GETREG(SISMISCR, &tmp8); |
| 1952 | ret |= SETREG(SISMISCW, (tmp8 | 0x01)); |
| 1953 | |
| 1954 | if (ret) continue; |
| 1955 | |
| 1956 | /* Reset registers */ |
| 1957 | ret |= SETIREGAND(SISCR, 0x5b, 0xdf); |
| 1958 | ret |= SETIREG(SISSR, 0x05, 0x86); |
| 1959 | ret |= SETIREGOR(SISSR, 0x20, 0x01); |
| 1960 | |
| 1961 | ret |= SETREG(SISMISCW, 0x67); |
| 1962 | |
| 1963 | for (i = 0x06; i <= 0x1f; i++) { |
| 1964 | ret |= SETIREG(SISSR, i, 0x00); |
| 1965 | } |
| 1966 | for (i = 0x21; i <= 0x27; i++) { |
| 1967 | ret |= SETIREG(SISSR, i, 0x00); |
| 1968 | } |
| 1969 | for (i = 0x31; i <= 0x3d; i++) { |
| 1970 | ret |= SETIREG(SISSR, i, 0x00); |
| 1971 | } |
| 1972 | for (i = 0x12; i <= 0x1b; i++) { |
| 1973 | ret |= SETIREG(SISSR, i, 0x00); |
| 1974 | } |
| 1975 | for (i = 0x79; i <= 0x7c; i++) { |
| 1976 | ret |= SETIREG(SISCR, i, 0x00); |
| 1977 | } |
| 1978 | |
| 1979 | if (ret) continue; |
| 1980 | |
| 1981 | ret |= SETIREG(SISCR, 0x63, 0x80); |
| 1982 | |
| 1983 | ret |= GETIREG(SISSR, 0x3a, &ramtype); |
| 1984 | ramtype &= 0x03; |
| 1985 | |
| 1986 | ret |= SETIREG(SISSR, 0x28, mclktable[ramtype * 4]); |
| 1987 | ret |= SETIREG(SISSR, 0x29, mclktable[(ramtype * 4) + 1]); |
| 1988 | ret |= SETIREG(SISSR, 0x2a, mclktable[(ramtype * 4) + 2]); |
| 1989 | |
| 1990 | ret |= SETIREG(SISSR, 0x2e, eclktable[ramtype * 4]); |
| 1991 | ret |= SETIREG(SISSR, 0x2f, eclktable[(ramtype * 4) + 1]); |
| 1992 | ret |= SETIREG(SISSR, 0x30, eclktable[(ramtype * 4) + 2]); |
| 1993 | |
| 1994 | ret |= SETIREG(SISSR, 0x07, 0x18); |
| 1995 | ret |= SETIREG(SISSR, 0x11, 0x0f); |
| 1996 | |
| 1997 | if (ret) continue; |
| 1998 | |
| 1999 | for (i = 0x15, j = 0; i <= 0x1b; i++, j++) { |
| 2000 | ret |= SETIREG(SISSR, i, ramtypetable1[(j*4) + ramtype]); |
| 2001 | } |
| 2002 | for (i = 0x40, j = 0; i <= 0x44; i++, j++) { |
| 2003 | ret |= SETIREG(SISCR, i, ramtypetable2[(j*4) + ramtype]); |
| 2004 | } |
| 2005 | |
| 2006 | ret |= SETIREG(SISCR, 0x49, 0xaa); |
| 2007 | |
| 2008 | ret |= SETIREG(SISSR, 0x1f, 0x00); |
| 2009 | ret |= SETIREG(SISSR, 0x20, 0xa0); |
| 2010 | ret |= SETIREG(SISSR, 0x23, 0xf6); |
| 2011 | ret |= SETIREG(SISSR, 0x24, 0x0d); |
| 2012 | ret |= SETIREG(SISSR, 0x25, 0x33); |
| 2013 | |
| 2014 | ret |= SETIREG(SISSR, 0x11, 0x0f); |
| 2015 | |
| 2016 | ret |= SETIREGOR(SISPART1, 0x2f, 0x01); |
| 2017 | |
| 2018 | ret |= SETIREGAND(SISCAP, 0x3f, 0xef); |
| 2019 | |
| 2020 | if (ret) continue; |
| 2021 | |
| 2022 | ret |= SETIREG(SISPART1, 0x00, 0x00); |
| 2023 | |
| 2024 | ret |= GETIREG(SISSR, 0x13, &tmp8); |
| 2025 | tmp8 >>= 4; |
| 2026 | |
| 2027 | ret |= SETIREG(SISPART1, 0x02, 0x00); |
| 2028 | ret |= SETIREG(SISPART1, 0x2e, 0x08); |
| 2029 | |
| 2030 | ret |= sisusb_read_pci_config(sisusb, 0x50, &tmp32); |
| 2031 | tmp32 &= 0x00f00000; |
| 2032 | tmp8 = (tmp32 == 0x100000) ? 0x33 : 0x03; |
| 2033 | ret |= SETIREG(SISSR, 0x25, tmp8); |
| 2034 | tmp8 = (tmp32 == 0x100000) ? 0xaa : 0x88; |
| 2035 | ret |= SETIREG(SISCR, 0x49, tmp8); |
| 2036 | |
| 2037 | ret |= SETIREG(SISSR, 0x27, 0x1f); |
| 2038 | ret |= SETIREG(SISSR, 0x31, 0x00); |
| 2039 | ret |= SETIREG(SISSR, 0x32, 0x11); |
| 2040 | ret |= SETIREG(SISSR, 0x33, 0x00); |
| 2041 | |
| 2042 | if (ret) continue; |
| 2043 | |
| 2044 | ret |= SETIREG(SISCR, 0x83, 0x00); |
| 2045 | |
| 2046 | ret |= sisusb_set_default_mode(sisusb, 0); |
| 2047 | |
| 2048 | ret |= SETIREGAND(SISSR, 0x21, 0xdf); |
| 2049 | ret |= SETIREGOR(SISSR, 0x01, 0x20); |
| 2050 | ret |= SETIREGOR(SISSR, 0x16, 0x0f); |
| 2051 | |
| 2052 | ret |= sisusb_triggersr16(sisusb, ramtype); |
| 2053 | |
| 2054 | /* Disable refresh */ |
| 2055 | ret |= SETIREGAND(SISSR, 0x17, 0xf8); |
| 2056 | ret |= SETIREGOR(SISSR, 0x19, 0x03); |
| 2057 | |
| 2058 | ret |= sisusb_getbuswidth(sisusb, &bw, &chab); |
| 2059 | ret |= sisusb_verify_mclk(sisusb); |
| 2060 | |
| 2061 | if (ramtype <= 1) { |
| 2062 | ret |= sisusb_get_sdram_size(sisusb, &iret, bw, chab); |
| 2063 | if (iret) { |
| 2064 | printk(KERN_ERR "sisusbvga[%d]: RAM size " |
| 2065 | "detection failed, " |
| 2066 | "assuming 8MB video RAM\n", |
| 2067 | sisusb->minor); |
| 2068 | ret |= SETIREG(SISSR,0x14,0x31); |
| 2069 | /* TODO */ |
| 2070 | } |
| 2071 | } else { |
| 2072 | printk(KERN_ERR "sisusbvga[%d]: DDR RAM device found, " |
| 2073 | "assuming 8MB video RAM\n", |
| 2074 | sisusb->minor); |
| 2075 | ret |= SETIREG(SISSR,0x14,0x31); |
| 2076 | /* *** TODO *** */ |
| 2077 | } |
| 2078 | |
| 2079 | /* Enable refresh */ |
| 2080 | ret |= SETIREG(SISSR, 0x16, ramtypetable1[4 + ramtype]); |
| 2081 | ret |= SETIREG(SISSR, 0x17, ramtypetable1[8 + ramtype]); |
| 2082 | ret |= SETIREG(SISSR, 0x19, ramtypetable1[16 + ramtype]); |
| 2083 | |
| 2084 | ret |= SETIREGOR(SISSR, 0x21, 0x20); |
| 2085 | |
| 2086 | ret |= SETIREG(SISSR, 0x22, 0xfb); |
| 2087 | ret |= SETIREG(SISSR, 0x21, 0xa5); |
| 2088 | |
| 2089 | if (ret == 0) |
| 2090 | break; |
| 2091 | } |
| 2092 | |
| 2093 | return ret; |
| 2094 | } |
| 2095 | |
| 2096 | #undef SETREG |
| 2097 | #undef GETREG |
| 2098 | #undef SETIREG |
| 2099 | #undef GETIREG |
| 2100 | #undef SETIREGOR |
| 2101 | #undef SETIREGAND |
| 2102 | #undef SETIREGANDOR |
| 2103 | #undef READL |
| 2104 | #undef WRITEL |
| 2105 | |
| 2106 | static void |
| 2107 | sisusb_get_ramconfig(struct sisusb_usb_data *sisusb) |
| 2108 | { |
| 2109 | u8 tmp8, tmp82, ramtype; |
| 2110 | int bw = 0; |
| 2111 | char *ramtypetext1 = NULL; |
| 2112 | const char *ramtypetext2[] = { "SDR SDRAM", "SDR SGRAM", |
| 2113 | "DDR SDRAM", "DDR SGRAM" }; |
| 2114 | static const int busSDR[4] = {64, 64, 128, 128}; |
| 2115 | static const int busDDR[4] = {32, 32, 64, 64}; |
| 2116 | static const int busDDRA[4] = {64+32, 64+32 , (64+32)*2, (64+32)*2}; |
| 2117 | |
| 2118 | sisusb_getidxreg(sisusb, SISSR, 0x14, &tmp8); |
| 2119 | sisusb_getidxreg(sisusb, SISSR, 0x15, &tmp82); |
| 2120 | sisusb_getidxreg(sisusb, SISSR, 0x3a, &ramtype); |
| 2121 | sisusb->vramsize = (1 << ((tmp8 & 0xf0) >> 4)) * 1024 * 1024; |
| 2122 | ramtype &= 0x03; |
| 2123 | switch ((tmp8 >> 2) & 0x03) { |
| 2124 | case 0: ramtypetext1 = "1 ch/1 r"; |
| 2125 | if (tmp82 & 0x10) { |
| 2126 | bw = 32; |
| 2127 | } else { |
| 2128 | bw = busSDR[(tmp8 & 0x03)]; |
| 2129 | } |
| 2130 | break; |
| 2131 | case 1: ramtypetext1 = "1 ch/2 r"; |
| 2132 | sisusb->vramsize <<= 1; |
| 2133 | bw = busSDR[(tmp8 & 0x03)]; |
| 2134 | break; |
| 2135 | case 2: ramtypetext1 = "asymmeric"; |
| 2136 | sisusb->vramsize += sisusb->vramsize/2; |
| 2137 | bw = busDDRA[(tmp8 & 0x03)]; |
| 2138 | break; |
| 2139 | case 3: ramtypetext1 = "2 channel"; |
| 2140 | sisusb->vramsize <<= 1; |
| 2141 | bw = busDDR[(tmp8 & 0x03)]; |
| 2142 | break; |
| 2143 | } |
| 2144 | |
| 2145 | printk(KERN_INFO "sisusbvga[%d]: %dMB %s %s, bus width %d\n", |
| 2146 | sisusb->minor, (sisusb->vramsize >> 20), ramtypetext1, |
| 2147 | ramtypetext2[ramtype], bw); |
| 2148 | } |
| 2149 | |
| 2150 | static int |
| 2151 | sisusb_do_init_gfxdevice(struct sisusb_usb_data *sisusb) |
| 2152 | { |
| 2153 | struct sisusb_packet packet; |
| 2154 | int ret; |
| 2155 | u32 tmp32; |
| 2156 | |
| 2157 | /* Do some magic */ |
| 2158 | packet.header = 0x001f; |
| 2159 | packet.address = 0x00000324; |
| 2160 | packet.data = 0x00000004; |
| 2161 | ret = sisusb_send_bridge_packet(sisusb, 10, &packet, 0); |
| 2162 | |
| 2163 | packet.header = 0x001f; |
| 2164 | packet.address = 0x00000364; |
| 2165 | packet.data = 0x00000004; |
| 2166 | ret |= sisusb_send_bridge_packet(sisusb, 10, &packet, 0); |
| 2167 | |
| 2168 | packet.header = 0x001f; |
| 2169 | packet.address = 0x00000384; |
| 2170 | packet.data = 0x00000004; |
| 2171 | ret |= sisusb_send_bridge_packet(sisusb, 10, &packet, 0); |
| 2172 | |
| 2173 | packet.header = 0x001f; |
| 2174 | packet.address = 0x00000100; |
| 2175 | packet.data = 0x00000700; |
| 2176 | ret |= sisusb_send_bridge_packet(sisusb, 10, &packet, 0); |
| 2177 | |
| 2178 | packet.header = 0x000f; |
| 2179 | packet.address = 0x00000004; |
| 2180 | ret |= sisusb_send_bridge_packet(sisusb, 6, &packet, 0); |
| 2181 | packet.data |= 0x17; |
| 2182 | ret |= sisusb_send_bridge_packet(sisusb, 10, &packet, 0); |
| 2183 | |
| 2184 | /* Init BAR 0 (VRAM) */ |
| 2185 | ret |= sisusb_read_pci_config(sisusb, 0x10, &tmp32); |
| 2186 | ret |= sisusb_write_pci_config(sisusb, 0x10, 0xfffffff0); |
| 2187 | ret |= sisusb_read_pci_config(sisusb, 0x10, &tmp32); |
| 2188 | tmp32 &= 0x0f; |
| 2189 | tmp32 |= SISUSB_PCI_MEMBASE; |
| 2190 | ret |= sisusb_write_pci_config(sisusb, 0x10, tmp32); |
| 2191 | |
| 2192 | /* Init BAR 1 (MMIO) */ |
| 2193 | ret |= sisusb_read_pci_config(sisusb, 0x14, &tmp32); |
| 2194 | ret |= sisusb_write_pci_config(sisusb, 0x14, 0xfffffff0); |
| 2195 | ret |= sisusb_read_pci_config(sisusb, 0x14, &tmp32); |
| 2196 | tmp32 &= 0x0f; |
| 2197 | tmp32 |= SISUSB_PCI_MMIOBASE; |
| 2198 | ret |= sisusb_write_pci_config(sisusb, 0x14, tmp32); |
| 2199 | |
| 2200 | /* Init BAR 2 (i/o ports) */ |
| 2201 | ret |= sisusb_read_pci_config(sisusb, 0x18, &tmp32); |
| 2202 | ret |= sisusb_write_pci_config(sisusb, 0x18, 0xfffffff0); |
| 2203 | ret |= sisusb_read_pci_config(sisusb, 0x18, &tmp32); |
| 2204 | tmp32 &= 0x0f; |
| 2205 | tmp32 |= SISUSB_PCI_IOPORTBASE; |
| 2206 | ret |= sisusb_write_pci_config(sisusb, 0x18, tmp32); |
| 2207 | |
| 2208 | /* Enable memory and i/o access */ |
| 2209 | ret |= sisusb_read_pci_config(sisusb, 0x04, &tmp32); |
| 2210 | tmp32 |= 0x3; |
| 2211 | ret |= sisusb_write_pci_config(sisusb, 0x04, tmp32); |
| 2212 | |
| 2213 | if (ret == 0) { |
| 2214 | /* Some further magic */ |
| 2215 | packet.header = 0x001f; |
| 2216 | packet.address = 0x00000050; |
| 2217 | packet.data = 0x000000ff; |
| 2218 | ret |= sisusb_send_bridge_packet(sisusb, 10, &packet, 0); |
| 2219 | } |
| 2220 | |
| 2221 | return ret; |
| 2222 | } |
| 2223 | |
| 2224 | /* Initialize the graphics device (return 0 on success) |
| 2225 | * This initializes the net2280 as well as the PCI registers |
| 2226 | * of the graphics board. |
| 2227 | */ |
| 2228 | |
| 2229 | static int |
| 2230 | sisusb_init_gfxdevice(struct sisusb_usb_data *sisusb, int initscreen) |
| 2231 | { |
| 2232 | int ret = 0, test = 0; |
| 2233 | u32 tmp32; |
| 2234 | |
| 2235 | if (sisusb->devinit == 1) { |
| 2236 | /* Read PCI BARs and see if they have been set up */ |
| 2237 | ret |= sisusb_read_pci_config(sisusb, 0x10, &tmp32); |
| 2238 | if (ret) return ret; |
| 2239 | if ((tmp32 & 0xfffffff0) == SISUSB_PCI_MEMBASE) test++; |
| 2240 | |
| 2241 | ret |= sisusb_read_pci_config(sisusb, 0x14, &tmp32); |
| 2242 | if (ret) return ret; |
| 2243 | if ((tmp32 & 0xfffffff0) == SISUSB_PCI_MMIOBASE) test++; |
| 2244 | |
| 2245 | ret |= sisusb_read_pci_config(sisusb, 0x18, &tmp32); |
| 2246 | if (ret) return ret; |
| 2247 | if ((tmp32 & 0xfffffff0) == SISUSB_PCI_IOPORTBASE) test++; |
| 2248 | } |
| 2249 | |
| 2250 | /* No? So reset the device */ |
| 2251 | if ((sisusb->devinit == 0) || (test != 3)) { |
| 2252 | |
| 2253 | ret |= sisusb_do_init_gfxdevice(sisusb); |
| 2254 | |
| 2255 | if (ret == 0) |
| 2256 | sisusb->devinit = 1; |
| 2257 | |
| 2258 | } |
| 2259 | |
| 2260 | if (sisusb->devinit) { |
| 2261 | /* Initialize the graphics core */ |
| 2262 | if (sisusb_init_gfxcore(sisusb) == 0) { |
| 2263 | sisusb->gfxinit = 1; |
| 2264 | sisusb_get_ramconfig(sisusb); |
| 2265 | ret |= sisusb_set_default_mode(sisusb, 1); |
| 2266 | ret |= sisusb_setup_screen(sisusb, 1, initscreen); |
| 2267 | } |
| 2268 | } |
| 2269 | |
| 2270 | return ret; |
| 2271 | } |
| 2272 | |
| 2273 | /* fops */ |
| 2274 | |
| 2275 | static int |
| 2276 | sisusb_open(struct inode *inode, struct file *file) |
| 2277 | { |
| 2278 | struct sisusb_usb_data *sisusb; |
| 2279 | struct usb_interface *interface; |
| 2280 | int subminor = iminor(inode); |
| 2281 | |
| 2282 | down(&disconnect_sem); |
| 2283 | |
| 2284 | if (!(interface = usb_find_interface(&sisusb_driver, subminor))) { |
| 2285 | printk(KERN_ERR "sisusb[%d]: Failed to find interface\n", |
| 2286 | subminor); |
| 2287 | up(&disconnect_sem); |
| 2288 | return -ENODEV; |
| 2289 | } |
| 2290 | |
| 2291 | if (!(sisusb = usb_get_intfdata(interface))) { |
| 2292 | up(&disconnect_sem); |
| 2293 | return -ENODEV; |
| 2294 | } |
| 2295 | |
| 2296 | down(&sisusb->lock); |
| 2297 | |
| 2298 | if (!sisusb->present || !sisusb->ready) { |
| 2299 | up(&sisusb->lock); |
| 2300 | up(&disconnect_sem); |
| 2301 | return -ENODEV; |
| 2302 | } |
| 2303 | |
| 2304 | if (sisusb->isopen) { |
| 2305 | up(&sisusb->lock); |
| 2306 | up(&disconnect_sem); |
| 2307 | return -EBUSY; |
| 2308 | } |
| 2309 | |
| 2310 | if (!sisusb->devinit) { |
| 2311 | if (sisusb->sisusb_dev->speed == USB_SPEED_HIGH) { |
| 2312 | if (sisusb_init_gfxdevice(sisusb, 0)) { |
| 2313 | up(&sisusb->lock); |
| 2314 | up(&disconnect_sem); |
| 2315 | printk(KERN_ERR |
| 2316 | "sisusbvga[%d]: Failed to initialize " |
| 2317 | "device\n", |
| 2318 | sisusb->minor); |
| 2319 | return -EIO; |
| 2320 | } |
| 2321 | } else { |
| 2322 | up(&sisusb->lock); |
| 2323 | up(&disconnect_sem); |
| 2324 | printk(KERN_ERR |
| 2325 | "sisusbvga[%d]: Device not attached to " |
| 2326 | "USB 2.0 hub\n", |
| 2327 | sisusb->minor); |
| 2328 | return -EIO; |
| 2329 | } |
| 2330 | } |
| 2331 | |
| 2332 | /* increment usage count for the device */ |
| 2333 | kref_get(&sisusb->kref); |
| 2334 | |
| 2335 | sisusb->isopen = 1; |
| 2336 | |
| 2337 | file->private_data = sisusb; |
| 2338 | |
| 2339 | up(&sisusb->lock); |
| 2340 | |
| 2341 | up(&disconnect_sem); |
| 2342 | |
| 2343 | printk(KERN_DEBUG "sisusbvga[%d]: opened", sisusb->minor); |
| 2344 | |
| 2345 | return 0; |
| 2346 | } |
| 2347 | |
| 2348 | static void |
| 2349 | sisusb_delete(struct kref *kref) |
| 2350 | { |
| 2351 | struct sisusb_usb_data *sisusb = to_sisusb_dev(kref); |
| 2352 | |
| 2353 | if (!sisusb) |
| 2354 | return; |
| 2355 | |
| 2356 | if (sisusb->sisusb_dev) |
| 2357 | usb_put_dev(sisusb->sisusb_dev); |
| 2358 | |
| 2359 | sisusb->sisusb_dev = NULL; |
| 2360 | sisusb_free_buffers(sisusb); |
| 2361 | sisusb_free_urbs(sisusb); |
| 2362 | kfree(sisusb); |
| 2363 | } |
| 2364 | |
| 2365 | static int |
| 2366 | sisusb_release(struct inode *inode, struct file *file) |
| 2367 | { |
| 2368 | struct sisusb_usb_data *sisusb; |
| 2369 | int myminor; |
| 2370 | |
| 2371 | down(&disconnect_sem); |
| 2372 | |
| 2373 | if (!(sisusb = (struct sisusb_usb_data *)file->private_data)) { |
| 2374 | up(&disconnect_sem); |
| 2375 | return -ENODEV; |
| 2376 | } |
| 2377 | |
| 2378 | down(&sisusb->lock); |
| 2379 | |
| 2380 | if (sisusb->present) { |
| 2381 | /* Wait for all URBs to finish if device still present */ |
| 2382 | if (!sisusb_wait_all_out_complete(sisusb)) |
| 2383 | sisusb_kill_all_busy(sisusb); |
| 2384 | } |
| 2385 | |
| 2386 | myminor = sisusb->minor; |
| 2387 | |
| 2388 | sisusb->isopen = 0; |
| 2389 | file->private_data = NULL; |
| 2390 | |
| 2391 | up(&sisusb->lock); |
| 2392 | |
| 2393 | /* decrement the usage count on our device */ |
| 2394 | kref_put(&sisusb->kref, sisusb_delete); |
| 2395 | |
| 2396 | up(&disconnect_sem); |
| 2397 | |
| 2398 | printk(KERN_DEBUG "sisusbvga[%d]: released", myminor); |
| 2399 | |
| 2400 | return 0; |
| 2401 | } |
| 2402 | |
| 2403 | static ssize_t |
| 2404 | sisusb_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos) |
| 2405 | { |
| 2406 | struct sisusb_usb_data *sisusb; |
| 2407 | ssize_t bytes_read = 0; |
| 2408 | int errno = 0; |
| 2409 | u8 buf8; |
| 2410 | u16 buf16; |
| 2411 | u32 buf32, address; |
| 2412 | |
| 2413 | if (!(sisusb = (struct sisusb_usb_data *)file->private_data)) |
| 2414 | return -ENODEV; |
| 2415 | |
| 2416 | down(&sisusb->lock); |
| 2417 | |
| 2418 | /* Sanity check */ |
| 2419 | if (!sisusb->present || !sisusb->ready || !sisusb->sisusb_dev) { |
| 2420 | up(&sisusb->lock); |
| 2421 | return -ENODEV; |
| 2422 | } |
| 2423 | |
| 2424 | if ((*ppos) >= SISUSB_PCI_PSEUDO_IOPORTBASE && |
| 2425 | (*ppos) < SISUSB_PCI_PSEUDO_IOPORTBASE + 128) { |
| 2426 | |
| 2427 | address = (*ppos) - |
| 2428 | SISUSB_PCI_PSEUDO_IOPORTBASE + |
| 2429 | SISUSB_PCI_IOPORTBASE; |
| 2430 | |
| 2431 | /* Read i/o ports |
| 2432 | * Byte, word and long(32) can be read. As this |
| 2433 | * emulates inX instructions, the data returned is |
| 2434 | * in machine-endianness. |
| 2435 | */ |
| 2436 | switch (count) { |
| 2437 | |
| 2438 | case 1: |
| 2439 | if (sisusb_read_memio_byte(sisusb, |
| 2440 | SISUSB_TYPE_IO, |
| 2441 | address, &buf8)) |
| 2442 | errno = -EIO; |
| 2443 | else if (put_user(buf8, (u8 __user *)buffer)) |
| 2444 | errno = -EFAULT; |
| 2445 | else |
| 2446 | bytes_read = 1; |
| 2447 | |
| 2448 | break; |
| 2449 | |
| 2450 | case 2: |
| 2451 | if (sisusb_read_memio_word(sisusb, |
| 2452 | SISUSB_TYPE_IO, |
| 2453 | address, &buf16)) |
| 2454 | errno = -EIO; |
| 2455 | else if (put_user(buf16, (u16 __user *)buffer)) |
| 2456 | errno = -EFAULT; |
| 2457 | else |
| 2458 | bytes_read = 2; |
| 2459 | |
| 2460 | break; |
| 2461 | |
| 2462 | case 4: |
| 2463 | if (sisusb_read_memio_long(sisusb, |
| 2464 | SISUSB_TYPE_IO, |
| 2465 | address, &buf32)) |
| 2466 | errno = -EIO; |
| 2467 | else if (put_user(buf32, (u32 __user *)buffer)) |
| 2468 | errno = -EFAULT; |
| 2469 | else |
| 2470 | bytes_read = 4; |
| 2471 | |
| 2472 | break; |
| 2473 | |
| 2474 | default: |
| 2475 | errno = -EIO; |
| 2476 | |
| 2477 | } |
| 2478 | |
| 2479 | } else if ((*ppos) >= SISUSB_PCI_PSEUDO_MEMBASE && |
| 2480 | (*ppos) < SISUSB_PCI_PSEUDO_MEMBASE + sisusb->vramsize) { |
| 2481 | |
| 2482 | address = (*ppos) - |
| 2483 | SISUSB_PCI_PSEUDO_MEMBASE + |
| 2484 | SISUSB_PCI_MEMBASE; |
| 2485 | |
| 2486 | /* Read video ram |
| 2487 | * Remember: Data delivered is never endian-corrected |
| 2488 | */ |
| 2489 | errno = sisusb_read_mem_bulk(sisusb, address, |
| 2490 | NULL, count, buffer, &bytes_read); |
| 2491 | |
| 2492 | if (bytes_read) |
| 2493 | errno = bytes_read; |
| 2494 | |
| 2495 | } else if ((*ppos) >= SISUSB_PCI_PSEUDO_MMIOBASE && |
| 2496 | (*ppos) < SISUSB_PCI_PSEUDO_MMIOBASE + SISUSB_PCI_MMIOSIZE) { |
| 2497 | |
| 2498 | address = (*ppos) - |
| 2499 | SISUSB_PCI_PSEUDO_MMIOBASE + |
| 2500 | SISUSB_PCI_MMIOBASE; |
| 2501 | |
| 2502 | /* Read MMIO |
| 2503 | * Remember: Data delivered is never endian-corrected |
| 2504 | */ |
| 2505 | errno = sisusb_read_mem_bulk(sisusb, address, |
| 2506 | NULL, count, buffer, &bytes_read); |
| 2507 | |
| 2508 | if (bytes_read) |
| 2509 | errno = bytes_read; |
| 2510 | |
| 2511 | } else if ((*ppos) >= SISUSB_PCI_PSEUDO_PCIBASE && |
| 2512 | (*ppos) <= SISUSB_PCI_PSEUDO_PCIBASE + 0x5c) { |
| 2513 | |
| 2514 | if (count != 4) { |
| 2515 | up(&sisusb->lock); |
| 2516 | return -EINVAL; |
| 2517 | } |
| 2518 | |
| 2519 | address = (*ppos) - SISUSB_PCI_PSEUDO_PCIBASE; |
| 2520 | |
| 2521 | /* Read PCI config register |
| 2522 | * Return value delivered in machine endianness. |
| 2523 | */ |
| 2524 | if (sisusb_read_pci_config(sisusb, address, &buf32)) |
| 2525 | errno = -EIO; |
| 2526 | else if (put_user(buf32, (u32 __user *)buffer)) |
| 2527 | errno = -EFAULT; |
| 2528 | else |
| 2529 | bytes_read = 4; |
| 2530 | |
| 2531 | } else { |
| 2532 | |
| 2533 | errno = -EBADFD; |
| 2534 | |
| 2535 | } |
| 2536 | |
| 2537 | (*ppos) += bytes_read; |
| 2538 | |
| 2539 | up(&sisusb->lock); |
| 2540 | |
| 2541 | return errno ? errno : bytes_read; |
| 2542 | } |
| 2543 | |
| 2544 | static ssize_t |
| 2545 | sisusb_write(struct file *file, const char __user *buffer, size_t count, |
| 2546 | loff_t *ppos) |
| 2547 | { |
| 2548 | struct sisusb_usb_data *sisusb; |
| 2549 | int errno = 0; |
| 2550 | ssize_t bytes_written = 0; |
| 2551 | u8 buf8; |
| 2552 | u16 buf16; |
| 2553 | u32 buf32, address; |
| 2554 | |
| 2555 | if (!(sisusb = (struct sisusb_usb_data *)file->private_data)) |
| 2556 | return -ENODEV; |
| 2557 | |
| 2558 | down(&sisusb->lock); |
| 2559 | |
| 2560 | /* Sanity check */ |
| 2561 | if (!sisusb->present || !sisusb->ready || !sisusb->sisusb_dev) { |
| 2562 | up(&sisusb->lock); |
| 2563 | return -ENODEV; |
| 2564 | } |
| 2565 | |
| 2566 | if ((*ppos) >= SISUSB_PCI_PSEUDO_IOPORTBASE && |
| 2567 | (*ppos) < SISUSB_PCI_PSEUDO_IOPORTBASE + 128) { |
| 2568 | |
| 2569 | address = (*ppos) - |
| 2570 | SISUSB_PCI_PSEUDO_IOPORTBASE + |
| 2571 | SISUSB_PCI_IOPORTBASE; |
| 2572 | |
| 2573 | /* Write i/o ports |
| 2574 | * Byte, word and long(32) can be written. As this |
| 2575 | * emulates outX instructions, the data is expected |
| 2576 | * in machine-endianness. |
| 2577 | */ |
| 2578 | switch (count) { |
| 2579 | |
| 2580 | case 1: |
| 2581 | if (get_user(buf8, (u8 __user *)buffer)) |
| 2582 | errno = -EFAULT; |
| 2583 | else if (sisusb_write_memio_byte(sisusb, |
| 2584 | SISUSB_TYPE_IO, |
| 2585 | address, buf8)) |
| 2586 | errno = -EIO; |
| 2587 | else |
| 2588 | bytes_written = 1; |
| 2589 | |
| 2590 | break; |
| 2591 | |
| 2592 | case 2: |
| 2593 | if (get_user(buf16, (u16 __user *)buffer)) |
| 2594 | errno = -EFAULT; |
| 2595 | else if (sisusb_write_memio_word(sisusb, |
| 2596 | SISUSB_TYPE_IO, |
| 2597 | address, buf16)) |
| 2598 | errno = -EIO; |
| 2599 | else |
| 2600 | bytes_written = 2; |
| 2601 | |
| 2602 | break; |
| 2603 | |
| 2604 | case 4: |
| 2605 | if (get_user(buf32, (u32 __user *)buffer)) |
| 2606 | errno = -EFAULT; |
| 2607 | else if (sisusb_write_memio_long(sisusb, |
| 2608 | SISUSB_TYPE_IO, |
| 2609 | address, buf32)) |
| 2610 | errno = -EIO; |
| 2611 | else |
| 2612 | bytes_written = 4; |
| 2613 | |
| 2614 | break; |
| 2615 | |
| 2616 | default: |
| 2617 | errno = -EIO; |
| 2618 | } |
| 2619 | |
| 2620 | } else if ((*ppos) >= SISUSB_PCI_PSEUDO_MEMBASE && |
| 2621 | (*ppos) < SISUSB_PCI_PSEUDO_MEMBASE + sisusb->vramsize) { |
| 2622 | |
| 2623 | address = (*ppos) - |
| 2624 | SISUSB_PCI_PSEUDO_MEMBASE + |
| 2625 | SISUSB_PCI_MEMBASE; |
| 2626 | |
| 2627 | /* Write video ram. |
| 2628 | * Buffer is copied 1:1, therefore, on big-endian |
| 2629 | * machines, the data must be swapped by userland |
| 2630 | * in advance (if applicable; no swapping in 8bpp |
| 2631 | * mode or if YUV data is being transferred). |
| 2632 | */ |
| 2633 | errno = sisusb_write_mem_bulk(sisusb, address, NULL, |
| 2634 | count, buffer, 0, &bytes_written); |
| 2635 | |
| 2636 | if (bytes_written) |
| 2637 | errno = bytes_written; |
| 2638 | |
| 2639 | } else if ((*ppos) >= SISUSB_PCI_PSEUDO_MMIOBASE && |
| 2640 | (*ppos) < SISUSB_PCI_PSEUDO_MMIOBASE + SISUSB_PCI_MMIOSIZE) { |
| 2641 | |
| 2642 | address = (*ppos) - |
| 2643 | SISUSB_PCI_PSEUDO_MMIOBASE + |
| 2644 | SISUSB_PCI_MMIOBASE; |
| 2645 | |
| 2646 | /* Write MMIO. |
| 2647 | * Buffer is copied 1:1, therefore, on big-endian |
| 2648 | * machines, the data must be swapped by userland |
| 2649 | * in advance. |
| 2650 | */ |
| 2651 | errno = sisusb_write_mem_bulk(sisusb, address, NULL, |
| 2652 | count, buffer, 0, &bytes_written); |
| 2653 | |
| 2654 | if (bytes_written) |
| 2655 | errno = bytes_written; |
| 2656 | |
| 2657 | } else if ((*ppos) >= SISUSB_PCI_PSEUDO_PCIBASE && |
| 2658 | (*ppos) <= SISUSB_PCI_PSEUDO_PCIBASE + SISUSB_PCI_PCONFSIZE) { |
| 2659 | |
| 2660 | if (count != 4) { |
| 2661 | up(&sisusb->lock); |
| 2662 | return -EINVAL; |
| 2663 | } |
| 2664 | |
| 2665 | address = (*ppos) - SISUSB_PCI_PSEUDO_PCIBASE; |
| 2666 | |
| 2667 | /* Write PCI config register. |
| 2668 | * Given value expected in machine endianness. |
| 2669 | */ |
| 2670 | if (get_user(buf32, (u32 __user *)buffer)) |
| 2671 | errno = -EFAULT; |
| 2672 | else if (sisusb_write_pci_config(sisusb, address, buf32)) |
| 2673 | errno = -EIO; |
| 2674 | else |
| 2675 | bytes_written = 4; |
| 2676 | |
| 2677 | |
| 2678 | } else { |
| 2679 | |
| 2680 | /* Error */ |
| 2681 | errno = -EBADFD; |
| 2682 | |
| 2683 | } |
| 2684 | |
| 2685 | (*ppos) += bytes_written; |
| 2686 | |
| 2687 | up(&sisusb->lock); |
| 2688 | |
| 2689 | return errno ? errno : bytes_written; |
| 2690 | } |
| 2691 | |
| 2692 | static loff_t |
| 2693 | sisusb_lseek(struct file *file, loff_t offset, int orig) |
| 2694 | { |
| 2695 | struct sisusb_usb_data *sisusb; |
| 2696 | loff_t ret; |
| 2697 | |
| 2698 | if (!(sisusb = (struct sisusb_usb_data *)file->private_data)) |
| 2699 | return -ENODEV; |
| 2700 | |
| 2701 | down(&sisusb->lock); |
| 2702 | |
| 2703 | /* Sanity check */ |
| 2704 | if (!sisusb->present || !sisusb->ready || !sisusb->sisusb_dev) { |
| 2705 | up(&sisusb->lock); |
| 2706 | return -ENODEV; |
| 2707 | } |
| 2708 | |
| 2709 | switch (orig) { |
| 2710 | case 0: |
| 2711 | file->f_pos = offset; |
| 2712 | ret = file->f_pos; |
| 2713 | /* never negative, no force_successful_syscall needed */ |
| 2714 | break; |
| 2715 | case 1: |
| 2716 | file->f_pos += offset; |
| 2717 | ret = file->f_pos; |
| 2718 | /* never negative, no force_successful_syscall needed */ |
| 2719 | break; |
| 2720 | default: |
| 2721 | /* seeking relative to "end of file" is not supported */ |
| 2722 | ret = -EINVAL; |
| 2723 | } |
| 2724 | |
| 2725 | up(&sisusb->lock); |
| 2726 | return ret; |
| 2727 | } |
| 2728 | |
| 2729 | static int |
| 2730 | sisusb_handle_command(struct sisusb_usb_data *sisusb, struct sisusb_command *y, |
| 2731 | unsigned long arg) |
| 2732 | { |
| 2733 | int retval, port, length; |
| 2734 | u32 address; |
| 2735 | |
| 2736 | port = y->data3 - |
| 2737 | SISUSB_PCI_PSEUDO_IOPORTBASE + |
| 2738 | SISUSB_PCI_IOPORTBASE; |
| 2739 | |
| 2740 | switch (y->operation) { |
| 2741 | case SUCMD_GET: |
| 2742 | retval = sisusb_getidxreg(sisusb, port, |
| 2743 | y->data0, &y->data1); |
| 2744 | if (!retval) { |
| 2745 | if (copy_to_user((void __user *)arg, y, |
| 2746 | sizeof(*y))) |
| 2747 | retval = -EFAULT; |
| 2748 | } |
| 2749 | break; |
| 2750 | |
| 2751 | case SUCMD_SET: |
| 2752 | retval = sisusb_setidxreg(sisusb, port, |
| 2753 | y->data0, y->data1); |
| 2754 | break; |
| 2755 | |
| 2756 | case SUCMD_SETOR: |
| 2757 | retval = sisusb_setidxregor(sisusb, port, |
| 2758 | y->data0, y->data1); |
| 2759 | break; |
| 2760 | |
| 2761 | case SUCMD_SETAND: |
| 2762 | retval = sisusb_setidxregand(sisusb, port, |
| 2763 | y->data0, y->data1); |
| 2764 | break; |
| 2765 | |
| 2766 | case SUCMD_SETANDOR: |
| 2767 | retval = sisusb_setidxregandor(sisusb, port, |
| 2768 | y->data0, y->data1, y->data2); |
| 2769 | break; |
| 2770 | |
| 2771 | case SUCMD_SETMASK: |
| 2772 | retval = sisusb_setidxregmask(sisusb, port, |
| 2773 | y->data0, y->data1, y->data2); |
| 2774 | break; |
| 2775 | |
| 2776 | case SUCMD_CLRSCR: |
| 2777 | length = (y->data0 << 16) | (y->data1 << 8) | y->data2; |
| 2778 | address = y->data3 - |
| 2779 | SISUSB_PCI_PSEUDO_MEMBASE + |
| 2780 | SISUSB_PCI_MEMBASE; |
| 2781 | retval = sisusb_clear_vram(sisusb, address, length); |
| 2782 | break; |
| 2783 | |
| 2784 | default: |
| 2785 | retval = -EINVAL; |
| 2786 | } |
| 2787 | |
| 2788 | if(retval > 0) |
| 2789 | retval = -EIO; |
| 2790 | |
| 2791 | return retval; |
| 2792 | } |
| 2793 | |
| 2794 | static int |
| 2795 | sisusb_ioctl(struct inode *inode, struct file *file, unsigned int cmd, |
| 2796 | unsigned long arg) |
| 2797 | { |
| 2798 | struct sisusb_usb_data *sisusb; |
| 2799 | struct sisusb_info x; |
| 2800 | struct sisusb_command y; |
| 2801 | int retval = 0; |
| 2802 | u32 __user *argp = (u32 __user *)arg; |
| 2803 | |
| 2804 | if (!(sisusb = (struct sisusb_usb_data *)file->private_data)) |
| 2805 | return -ENODEV; |
| 2806 | |
| 2807 | down(&sisusb->lock); |
| 2808 | |
| 2809 | /* Sanity check */ |
| 2810 | if (!sisusb->present || !sisusb->ready || !sisusb->sisusb_dev) { |
| 2811 | retval = -ENODEV; |
| 2812 | goto err_out; |
| 2813 | } |
| 2814 | |
| 2815 | switch (cmd) { |
| 2816 | |
| 2817 | case SISUSB_GET_CONFIG_SIZE: |
| 2818 | |
| 2819 | if (put_user(sizeof(x), argp)) |
| 2820 | retval = -EFAULT; |
| 2821 | |
| 2822 | break; |
| 2823 | |
| 2824 | case SISUSB_GET_CONFIG: |
| 2825 | |
| 2826 | x.sisusb_id = SISUSB_ID; |
| 2827 | x.sisusb_version = SISUSB_VERSION; |
| 2828 | x.sisusb_revision = SISUSB_REVISION; |
| 2829 | x.sisusb_patchlevel = SISUSB_PATCHLEVEL; |
| 2830 | x.sisusb_gfxinit = sisusb->gfxinit; |
| 2831 | x.sisusb_vrambase = SISUSB_PCI_PSEUDO_MEMBASE; |
| 2832 | x.sisusb_mmiobase = SISUSB_PCI_PSEUDO_MMIOBASE; |
| 2833 | x.sisusb_iobase = SISUSB_PCI_PSEUDO_IOPORTBASE; |
| 2834 | x.sisusb_pcibase = SISUSB_PCI_PSEUDO_PCIBASE; |
| 2835 | x.sisusb_vramsize = sisusb->vramsize; |
| 2836 | x.sisusb_minor = sisusb->minor; |
| 2837 | x.sisusb_fbdevactive= 0; |
| 2838 | |
| 2839 | if (copy_to_user((void __user *)arg, &x, sizeof(x))) |
| 2840 | retval = -EFAULT; |
| 2841 | |
| 2842 | break; |
| 2843 | |
| 2844 | case SISUSB_COMMAND: |
| 2845 | |
| 2846 | if (copy_from_user(&y, (void __user *)arg, sizeof(y))) |
| 2847 | retval = -EFAULT; |
| 2848 | else |
| 2849 | retval = sisusb_handle_command(sisusb, &y, arg); |
| 2850 | |
| 2851 | break; |
| 2852 | |
| 2853 | default: |
| 2854 | retval = -EINVAL; |
| 2855 | break; |
| 2856 | } |
| 2857 | |
| 2858 | err_out: |
| 2859 | up(&sisusb->lock); |
| 2860 | return retval; |
| 2861 | } |
| 2862 | |
| 2863 | #ifdef SISUSB_NEW_CONFIG_COMPAT |
| 2864 | static long |
| 2865 | sisusb_compat_ioctl(struct file *f, unsigned int cmd, unsigned long arg) |
| 2866 | { |
| 2867 | long retval; |
| 2868 | |
| 2869 | switch (cmd) { |
| 2870 | case SISUSB_GET_CONFIG_SIZE: |
| 2871 | case SISUSB_GET_CONFIG: |
| 2872 | case SISUSB_COMMAND: |
| 2873 | lock_kernel(); |
| 2874 | retval = sisusb_ioctl(f->f_dentry->d_inode, f, cmd, arg); |
| 2875 | unlock_kernel(); |
| 2876 | return retval; |
| 2877 | |
| 2878 | default: |
| 2879 | return -ENOIOCTLCMD; |
| 2880 | } |
| 2881 | } |
| 2882 | #endif |
| 2883 | |
| 2884 | static struct file_operations usb_sisusb_fops = { |
| 2885 | .owner = THIS_MODULE, |
| 2886 | .open = sisusb_open, |
| 2887 | .release = sisusb_release, |
| 2888 | .read = sisusb_read, |
| 2889 | .write = sisusb_write, |
| 2890 | .llseek = sisusb_lseek, |
| 2891 | #ifdef SISUSB_NEW_CONFIG_COMPAT |
| 2892 | .compat_ioctl = sisusb_compat_ioctl, |
| 2893 | #endif |
| 2894 | .ioctl = sisusb_ioctl |
| 2895 | }; |
| 2896 | |
| 2897 | static struct usb_class_driver usb_sisusb_class = { |
| 2898 | .name = "usb/sisusbvga%d", |
| 2899 | .fops = &usb_sisusb_fops, |
| 2900 | .mode = S_IFCHR | S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP, |
| 2901 | .minor_base = SISUSB_MINOR |
| 2902 | }; |
| 2903 | |
| 2904 | static int sisusb_probe(struct usb_interface *intf, |
| 2905 | const struct usb_device_id *id) |
| 2906 | { |
| 2907 | struct usb_device *dev = interface_to_usbdev(intf); |
| 2908 | struct sisusb_usb_data *sisusb; |
| 2909 | int retval = 0, i; |
| 2910 | const char *memfail = |
| 2911 | KERN_ERR |
| 2912 | "sisusbvga[%d]: Failed to allocate memory for %s buffer\n"; |
| 2913 | |
| 2914 | printk(KERN_INFO "sisusb: USB2VGA dongle found at address %d\n", |
| 2915 | dev->devnum); |
| 2916 | |
| 2917 | /* Allocate memory for our private */ |
| 2918 | if (!(sisusb = kmalloc(sizeof(*sisusb), GFP_KERNEL))) { |
| 2919 | printk(KERN_ERR |
| 2920 | "sisusb: Failed to allocate memory for private data\n"); |
| 2921 | return -ENOMEM; |
| 2922 | } |
| 2923 | memset(sisusb, 0, sizeof(*sisusb)); |
| 2924 | kref_init(&sisusb->kref); |
| 2925 | |
| 2926 | init_MUTEX(&(sisusb->lock)); |
| 2927 | |
| 2928 | /* Register device */ |
| 2929 | if ((retval = usb_register_dev(intf, &usb_sisusb_class))) { |
| 2930 | printk(KERN_ERR |
| 2931 | "sisusb: Failed to get a minor for device %d\n", |
| 2932 | dev->devnum); |
| 2933 | retval = -ENODEV; |
| 2934 | goto error_1; |
| 2935 | } |
| 2936 | |
| 2937 | sisusb->sisusb_dev = dev; |
| 2938 | sisusb->minor = intf->minor; |
| 2939 | sisusb->vrambase = SISUSB_PCI_MEMBASE; |
| 2940 | sisusb->mmiobase = SISUSB_PCI_MMIOBASE; |
| 2941 | sisusb->mmiosize = SISUSB_PCI_MMIOSIZE; |
| 2942 | sisusb->ioportbase = SISUSB_PCI_IOPORTBASE; |
| 2943 | /* Everything else is zero */ |
| 2944 | |
| 2945 | /* Allocate buffers */ |
| 2946 | sisusb->ibufsize = SISUSB_IBUF_SIZE; |
| 2947 | if (!(sisusb->ibuf = usb_buffer_alloc(dev, SISUSB_IBUF_SIZE, |
| 2948 | GFP_KERNEL, &sisusb->transfer_dma_in))) { |
| 2949 | printk(memfail, "input", sisusb->minor); |
| 2950 | retval = -ENOMEM; |
| 2951 | goto error_2; |
| 2952 | } |
| 2953 | |
| 2954 | sisusb->numobufs = 0; |
| 2955 | sisusb->obufsize = SISUSB_OBUF_SIZE; |
| 2956 | for (i = 0; i < NUMOBUFS; i++) { |
| 2957 | if (!(sisusb->obuf[i] = usb_buffer_alloc(dev, SISUSB_OBUF_SIZE, |
| 2958 | GFP_KERNEL, |
| 2959 | &sisusb->transfer_dma_out[i]))) { |
| 2960 | if (i == 0) { |
| 2961 | printk(memfail, "output", sisusb->minor); |
| 2962 | retval = -ENOMEM; |
| 2963 | goto error_3; |
| 2964 | } |
| 2965 | break; |
| 2966 | } else |
| 2967 | sisusb->numobufs++; |
| 2968 | |
| 2969 | } |
| 2970 | |
| 2971 | /* Allocate URBs */ |
| 2972 | if (!(sisusb->sisurbin = usb_alloc_urb(0, GFP_KERNEL))) { |
| 2973 | printk(KERN_ERR |
| 2974 | "sisusbvga[%d]: Failed to allocate URBs\n", |
| 2975 | sisusb->minor); |
| 2976 | retval = -ENOMEM; |
| 2977 | goto error_3; |
| 2978 | } |
| 2979 | sisusb->completein = 1; |
| 2980 | |
| 2981 | for (i = 0; i < sisusb->numobufs; i++) { |
| 2982 | if (!(sisusb->sisurbout[i] = usb_alloc_urb(0, GFP_KERNEL))) { |
| 2983 | printk(KERN_ERR |
| 2984 | "sisusbvga[%d]: Failed to allocate URBs\n", |
| 2985 | sisusb->minor); |
| 2986 | retval = -ENOMEM; |
| 2987 | goto error_4; |
| 2988 | } |
| 2989 | sisusb->urbout_context[i].sisusb = (void *)sisusb; |
| 2990 | sisusb->urbout_context[i].urbindex = i; |
| 2991 | sisusb->urbstatus[i] = 0; |
| 2992 | } |
| 2993 | |
| 2994 | printk(KERN_INFO "sisusbvga[%d]: Allocated %d output buffers\n", |
| 2995 | sisusb->minor, sisusb->numobufs); |
| 2996 | |
| 2997 | /* Do remaining init stuff */ |
| 2998 | |
| 2999 | init_waitqueue_head(&sisusb->wait_q); |
| 3000 | |
| 3001 | usb_set_intfdata(intf, sisusb); |
| 3002 | |
| 3003 | #ifdef SISUSB_OLD_CONFIG_COMPAT |
| 3004 | { |
| 3005 | int ret; |
| 3006 | /* Our ioctls are all "32/64bit compatible" */ |
| 3007 | ret = register_ioctl32_conversion(SISUSB_GET_CONFIG_SIZE, NULL); |
| 3008 | ret |= register_ioctl32_conversion(SISUSB_GET_CONFIG, NULL); |
| 3009 | ret |= register_ioctl32_conversion(SISUSB_COMMAND, NULL); |
| 3010 | if (ret) |
| 3011 | printk(KERN_ERR |
| 3012 | "sisusbvga[%d]: Error registering ioctl32 " |
| 3013 | "translations\n", |
| 3014 | sisusb->minor); |
| 3015 | else |
| 3016 | sisusb->ioctl32registered = 1; |
| 3017 | |
| 3018 | } |
| 3019 | #endif |
| 3020 | |
| 3021 | sisusb->present = 1; |
| 3022 | |
| 3023 | if (dev->speed == USB_SPEED_HIGH) { |
| 3024 | if (sisusb_init_gfxdevice(sisusb, 1)) |
| 3025 | printk(KERN_ERR |
| 3026 | "sisusbvga[%d]: Failed to early " |
| 3027 | "initialize device\n", |
| 3028 | sisusb->minor); |
| 3029 | |
| 3030 | } else |
| 3031 | printk(KERN_INFO |
| 3032 | "sisusbvga[%d]: Not attached to USB 2.0 hub, " |
| 3033 | "deferring init\n", |
| 3034 | sisusb->minor); |
| 3035 | |
| 3036 | sisusb->ready = 1; |
| 3037 | |
| 3038 | return 0; |
| 3039 | |
| 3040 | error_4: |
| 3041 | sisusb_free_urbs(sisusb); |
| 3042 | error_3: |
| 3043 | sisusb_free_buffers(sisusb); |
| 3044 | error_2: |
| 3045 | usb_deregister_dev(intf, &usb_sisusb_class); |
| 3046 | error_1: |
| 3047 | kfree(sisusb); |
| 3048 | return retval; |
| 3049 | } |
| 3050 | |
| 3051 | static void sisusb_disconnect(struct usb_interface *intf) |
| 3052 | { |
| 3053 | struct sisusb_usb_data *sisusb; |
| 3054 | int minor; |
| 3055 | |
| 3056 | down(&disconnect_sem); |
| 3057 | |
| 3058 | /* This should *not* happen */ |
| 3059 | if (!(sisusb = usb_get_intfdata(intf))) { |
| 3060 | up(&disconnect_sem); |
| 3061 | return; |
| 3062 | } |
| 3063 | |
| 3064 | down(&sisusb->lock); |
| 3065 | |
| 3066 | /* Wait for all URBs to complete and kill them in case (MUST do) */ |
| 3067 | if (!sisusb_wait_all_out_complete(sisusb)) |
| 3068 | sisusb_kill_all_busy(sisusb); |
| 3069 | |
| 3070 | minor = sisusb->minor; |
| 3071 | |
| 3072 | usb_set_intfdata(intf, NULL); |
| 3073 | |
| 3074 | usb_deregister_dev(intf, &usb_sisusb_class); |
| 3075 | |
| 3076 | #ifdef SISUSB_OLD_CONFIG_COMPAT |
| 3077 | if (sisusb->ioctl32registered) { |
| 3078 | int ret; |
| 3079 | sisusb->ioctl32registered = 0; |
| 3080 | ret = unregister_ioctl32_conversion(SISUSB_GET_CONFIG_SIZE); |
| 3081 | ret |= unregister_ioctl32_conversion(SISUSB_GET_CONFIG); |
| 3082 | ret |= unregister_ioctl32_conversion(SISUSB_COMMAND); |
| 3083 | if (ret) { |
| 3084 | printk(KERN_ERR |
| 3085 | "sisusbvga[%d]: Error unregistering " |
| 3086 | "ioctl32 translations\n", |
| 3087 | minor); |
| 3088 | } |
| 3089 | } |
| 3090 | #endif |
| 3091 | |
| 3092 | sisusb->present = 0; |
| 3093 | sisusb->ready = 0; |
| 3094 | |
| 3095 | up(&sisusb->lock); |
| 3096 | |
| 3097 | /* decrement our usage count */ |
| 3098 | kref_put(&sisusb->kref, sisusb_delete); |
| 3099 | |
| 3100 | up(&disconnect_sem); |
| 3101 | |
| 3102 | printk(KERN_INFO "sisusbvga[%d]: Disconnected\n", minor); |
| 3103 | } |
| 3104 | |
| 3105 | static struct usb_device_id sisusb_table [] = { |
| 3106 | { USB_DEVICE(0x0711, 0x0900) }, |
| 3107 | { } |
| 3108 | }; |
| 3109 | |
| 3110 | MODULE_DEVICE_TABLE (usb, sisusb_table); |
| 3111 | |
| 3112 | static struct usb_driver sisusb_driver = { |
| 3113 | .owner = THIS_MODULE, |
| 3114 | .name = "sisusb", |
| 3115 | .probe = sisusb_probe, |
| 3116 | .disconnect = sisusb_disconnect, |
| 3117 | .id_table = sisusb_table |
| 3118 | }; |
| 3119 | |
| 3120 | static int __init usb_sisusb_init(void) |
| 3121 | { |
| 3122 | int retval; |
| 3123 | |
| 3124 | if (!(retval = usb_register(&sisusb_driver))) { |
| 3125 | printk(KERN_INFO "sisusb: Driver version %d.%d.%d\n", |
| 3126 | SISUSB_VERSION, SISUSB_REVISION, SISUSB_PATCHLEVEL); |
| 3127 | printk(KERN_INFO |
| 3128 | "sisusb: Copyright (C) 2005 Thomas Winischhofer\n"); |
| 3129 | } |
| 3130 | |
| 3131 | return retval; |
| 3132 | } |
| 3133 | |
| 3134 | static void __exit usb_sisusb_exit(void) |
| 3135 | { |
| 3136 | usb_deregister(&sisusb_driver); |
| 3137 | } |
| 3138 | |
| 3139 | module_init(usb_sisusb_init); |
| 3140 | module_exit(usb_sisusb_exit); |
| 3141 | |
| 3142 | MODULE_AUTHOR("Thomas Winischhofer <thomas@winischhofer.net>"); |
| 3143 | MODULE_DESCRIPTION("sisusb - Driver for Net2280/SiS315-based USB2VGA dongles"); |
| 3144 | MODULE_LICENSE("GPL"); |
| 3145 | |