1 /* Realtek PCI-Express Memstick Card Interface driver 2 * 3 * Copyright(c) 2009 Realtek Semiconductor Corp. All rights reserved. 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License as published by the 7 * Free Software Foundation; either version 2, or (at your option) any 8 * later version. 9 * 10 * This program is distributed in the hope that it will be useful, but 11 * WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License along 16 * with this program; if not, see <http://www.gnu.org/licenses/>. 17 * 18 * Author: 19 * Wei WANG <wei_wang@realsil.com.cn> 20 * No. 450, Shenhu Road, Suzhou Industry Park, Suzhou, China 21 */ 22 23 #include <linux/module.h> 24 #include <linux/highmem.h> 25 #include <linux/delay.h> 26 #include <linux/platform_device.h> 27 #include <linux/memstick.h> 28 #include <linux/mfd/rtsx_pci.h> 29 #include <asm/unaligned.h> 30 31 struct realtek_pci_ms { 32 struct platform_device *pdev; 33 struct rtsx_pcr *pcr; 34 struct memstick_host *msh; 35 struct memstick_request *req; 36 37 struct mutex host_mutex; 38 struct work_struct handle_req; 39 40 u8 ssc_depth; 41 unsigned int clock; 42 unsigned char ifmode; 43 bool eject; 44 }; 45 46 static inline struct device *ms_dev(struct realtek_pci_ms *host) 47 { 48 return &(host->pdev->dev); 49 } 50 51 static inline void ms_clear_error(struct realtek_pci_ms *host) 52 { 53 rtsx_pci_write_register(host->pcr, CARD_STOP, 54 MS_STOP | MS_CLR_ERR, MS_STOP | MS_CLR_ERR); 55 } 56 57 #ifdef DEBUG 58 59 static void ms_print_debug_regs(struct realtek_pci_ms *host) 60 { 61 struct rtsx_pcr *pcr = host->pcr; 62 u16 i; 63 u8 *ptr; 64 65 /* Print MS host internal registers */ 66 rtsx_pci_init_cmd(pcr); 67 for (i = 0xFD40; i <= 0xFD44; i++) 68 rtsx_pci_add_cmd(pcr, READ_REG_CMD, i, 0, 0); 69 for (i = 0xFD52; i <= 0xFD69; i++) 70 rtsx_pci_add_cmd(pcr, READ_REG_CMD, i, 0, 0); 71 rtsx_pci_send_cmd(pcr, 100); 72 73 ptr = rtsx_pci_get_cmd_data(pcr); 74 for (i = 0xFD40; i <= 0xFD44; i++) 75 dev_dbg(ms_dev(host), "0x%04X: 0x%02x\n", i, *(ptr++)); 76 for (i = 0xFD52; i <= 0xFD69; i++) 77 dev_dbg(ms_dev(host), "0x%04X: 0x%02x\n", i, *(ptr++)); 78 } 79 80 #else 81 82 #define ms_print_debug_regs(host) 83 84 #endif 85 86 static int ms_power_on(struct realtek_pci_ms *host) 87 { 88 struct rtsx_pcr *pcr = host->pcr; 89 int err; 90 91 rtsx_pci_init_cmd(pcr); 92 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_SELECT, 0x07, MS_MOD_SEL); 93 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_SHARE_MODE, 94 CARD_SHARE_MASK, CARD_SHARE_48_MS); 95 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_CLK_EN, 96 MS_CLK_EN, MS_CLK_EN); 97 err = rtsx_pci_send_cmd(pcr, 100); 98 if (err < 0) 99 return err; 100 101 err = rtsx_pci_card_pull_ctl_enable(pcr, RTSX_MS_CARD); 102 if (err < 0) 103 return err; 104 105 err = rtsx_pci_card_power_on(pcr, RTSX_MS_CARD); 106 if (err < 0) 107 return err; 108 109 /* Wait ms power stable */ 110 msleep(150); 111 112 err = rtsx_pci_write_register(pcr, CARD_OE, 113 MS_OUTPUT_EN, MS_OUTPUT_EN); 114 if (err < 0) 115 return err; 116 117 return 0; 118 } 119 120 static int ms_power_off(struct realtek_pci_ms *host) 121 { 122 struct rtsx_pcr *pcr = host->pcr; 123 int err; 124 125 rtsx_pci_init_cmd(pcr); 126 127 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_CLK_EN, MS_CLK_EN, 0); 128 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_OE, MS_OUTPUT_EN, 0); 129 130 err = rtsx_pci_send_cmd(pcr, 100); 131 if (err < 0) 132 return err; 133 134 err = rtsx_pci_card_power_off(pcr, RTSX_MS_CARD); 135 if (err < 0) 136 return err; 137 138 return rtsx_pci_card_pull_ctl_disable(pcr, RTSX_MS_CARD); 139 } 140 141 static int ms_transfer_data(struct realtek_pci_ms *host, unsigned char data_dir, 142 u8 tpc, u8 cfg, struct scatterlist *sg) 143 { 144 struct rtsx_pcr *pcr = host->pcr; 145 int err; 146 unsigned int length = sg->length; 147 u16 sec_cnt = (u16)(length / 512); 148 u8 val, trans_mode, dma_dir; 149 150 dev_dbg(ms_dev(host), "%s: tpc = 0x%02x, data_dir = %s, length = %d\n", 151 __func__, tpc, (data_dir == READ) ? "READ" : "WRITE", 152 length); 153 154 if (data_dir == READ) { 155 dma_dir = DMA_DIR_FROM_CARD; 156 trans_mode = MS_TM_AUTO_READ; 157 } else { 158 dma_dir = DMA_DIR_TO_CARD; 159 trans_mode = MS_TM_AUTO_WRITE; 160 } 161 162 rtsx_pci_init_cmd(pcr); 163 164 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, MS_TPC, 0xFF, tpc); 165 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, MS_SECTOR_CNT_H, 166 0xFF, (u8)(sec_cnt >> 8)); 167 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, MS_SECTOR_CNT_L, 168 0xFF, (u8)sec_cnt); 169 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, MS_TRANS_CFG, 0xFF, cfg); 170 171 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, IRQSTAT0, 172 DMA_DONE_INT, DMA_DONE_INT); 173 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, DMATC3, 0xFF, (u8)(length >> 24)); 174 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, DMATC2, 0xFF, (u8)(length >> 16)); 175 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, DMATC1, 0xFF, (u8)(length >> 8)); 176 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, DMATC0, 0xFF, (u8)length); 177 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, DMACTL, 178 0x03 | DMA_PACK_SIZE_MASK, dma_dir | DMA_EN | DMA_512); 179 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_DATA_SOURCE, 180 0x01, RING_BUFFER); 181 182 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, MS_TRANSFER, 183 0xFF, MS_TRANSFER_START | trans_mode); 184 rtsx_pci_add_cmd(pcr, CHECK_REG_CMD, MS_TRANSFER, 185 MS_TRANSFER_END, MS_TRANSFER_END); 186 187 rtsx_pci_send_cmd_no_wait(pcr); 188 189 err = rtsx_pci_transfer_data(pcr, sg, 1, data_dir == READ, 10000); 190 if (err < 0) { 191 ms_clear_error(host); 192 return err; 193 } 194 195 rtsx_pci_read_register(pcr, MS_TRANS_CFG, &val); 196 if (val & (MS_INT_CMDNK | MS_INT_ERR | MS_CRC16_ERR | MS_RDY_TIMEOUT)) 197 return -EIO; 198 199 return 0; 200 } 201 202 static int ms_write_bytes(struct realtek_pci_ms *host, u8 tpc, 203 u8 cfg, u8 cnt, u8 *data, u8 *int_reg) 204 { 205 struct rtsx_pcr *pcr = host->pcr; 206 int err, i; 207 208 dev_dbg(ms_dev(host), "%s: tpc = 0x%02x\n", __func__, tpc); 209 210 if (!data) 211 return -EINVAL; 212 213 rtsx_pci_init_cmd(pcr); 214 215 for (i = 0; i < cnt; i++) 216 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, 217 PPBUF_BASE2 + i, 0xFF, data[i]); 218 if (cnt % 2) 219 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, 220 PPBUF_BASE2 + i, 0xFF, 0xFF); 221 222 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, MS_TPC, 0xFF, tpc); 223 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, MS_BYTE_CNT, 0xFF, cnt); 224 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, MS_TRANS_CFG, 0xFF, cfg); 225 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_DATA_SOURCE, 226 0x01, PINGPONG_BUFFER); 227 228 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, MS_TRANSFER, 229 0xFF, MS_TRANSFER_START | MS_TM_WRITE_BYTES); 230 rtsx_pci_add_cmd(pcr, CHECK_REG_CMD, MS_TRANSFER, 231 MS_TRANSFER_END, MS_TRANSFER_END); 232 if (int_reg) 233 rtsx_pci_add_cmd(pcr, READ_REG_CMD, MS_TRANS_CFG, 0, 0); 234 235 err = rtsx_pci_send_cmd(pcr, 5000); 236 if (err < 0) { 237 u8 val; 238 239 rtsx_pci_read_register(pcr, MS_TRANS_CFG, &val); 240 dev_dbg(ms_dev(host), "MS_TRANS_CFG: 0x%02x\n", val); 241 242 if (int_reg) 243 *int_reg = val & 0x0F; 244 245 ms_print_debug_regs(host); 246 247 ms_clear_error(host); 248 249 if (!(tpc & 0x08)) { 250 if (val & MS_CRC16_ERR) 251 return -EIO; 252 } else { 253 if (!(val & 0x80)) { 254 if (val & (MS_INT_ERR | MS_INT_CMDNK)) 255 return -EIO; 256 } 257 } 258 259 return -ETIMEDOUT; 260 } 261 262 if (int_reg) { 263 u8 *ptr = rtsx_pci_get_cmd_data(pcr) + 1; 264 *int_reg = *ptr & 0x0F; 265 } 266 267 return 0; 268 } 269 270 static int ms_read_bytes(struct realtek_pci_ms *host, u8 tpc, 271 u8 cfg, u8 cnt, u8 *data, u8 *int_reg) 272 { 273 struct rtsx_pcr *pcr = host->pcr; 274 int err, i; 275 u8 *ptr; 276 277 dev_dbg(ms_dev(host), "%s: tpc = 0x%02x\n", __func__, tpc); 278 279 if (!data) 280 return -EINVAL; 281 282 rtsx_pci_init_cmd(pcr); 283 284 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, MS_TPC, 0xFF, tpc); 285 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, MS_BYTE_CNT, 0xFF, cnt); 286 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, MS_TRANS_CFG, 0xFF, cfg); 287 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_DATA_SOURCE, 288 0x01, PINGPONG_BUFFER); 289 290 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, MS_TRANSFER, 291 0xFF, MS_TRANSFER_START | MS_TM_READ_BYTES); 292 rtsx_pci_add_cmd(pcr, CHECK_REG_CMD, MS_TRANSFER, 293 MS_TRANSFER_END, MS_TRANSFER_END); 294 for (i = 0; i < cnt - 1; i++) 295 rtsx_pci_add_cmd(pcr, READ_REG_CMD, PPBUF_BASE2 + i, 0, 0); 296 if (cnt % 2) 297 rtsx_pci_add_cmd(pcr, READ_REG_CMD, PPBUF_BASE2 + cnt, 0, 0); 298 else 299 rtsx_pci_add_cmd(pcr, READ_REG_CMD, 300 PPBUF_BASE2 + cnt - 1, 0, 0); 301 if (int_reg) 302 rtsx_pci_add_cmd(pcr, READ_REG_CMD, MS_TRANS_CFG, 0, 0); 303 304 err = rtsx_pci_send_cmd(pcr, 5000); 305 if (err < 0) { 306 u8 val; 307 308 rtsx_pci_read_register(pcr, MS_TRANS_CFG, &val); 309 dev_dbg(ms_dev(host), "MS_TRANS_CFG: 0x%02x\n", val); 310 311 if (int_reg) 312 *int_reg = val & 0x0F; 313 314 ms_print_debug_regs(host); 315 316 ms_clear_error(host); 317 318 if (!(tpc & 0x08)) { 319 if (val & MS_CRC16_ERR) 320 return -EIO; 321 } else { 322 if (!(val & 0x80)) { 323 if (val & (MS_INT_ERR | MS_INT_CMDNK)) 324 return -EIO; 325 } 326 } 327 328 return -ETIMEDOUT; 329 } 330 331 ptr = rtsx_pci_get_cmd_data(pcr) + 1; 332 for (i = 0; i < cnt; i++) 333 data[i] = *ptr++; 334 335 if (int_reg) 336 *int_reg = *ptr & 0x0F; 337 338 return 0; 339 } 340 341 static int rtsx_pci_ms_issue_cmd(struct realtek_pci_ms *host) 342 { 343 struct memstick_request *req = host->req; 344 int err = 0; 345 u8 cfg = 0, int_reg; 346 347 dev_dbg(ms_dev(host), "%s\n", __func__); 348 349 if (req->need_card_int) { 350 if (host->ifmode != MEMSTICK_SERIAL) 351 cfg = WAIT_INT; 352 } 353 354 if (req->long_data) { 355 err = ms_transfer_data(host, req->data_dir, 356 req->tpc, cfg, &(req->sg)); 357 } else { 358 if (req->data_dir == READ) { 359 err = ms_read_bytes(host, req->tpc, cfg, 360 req->data_len, req->data, &int_reg); 361 } else { 362 err = ms_write_bytes(host, req->tpc, cfg, 363 req->data_len, req->data, &int_reg); 364 } 365 } 366 if (err < 0) 367 return err; 368 369 if (req->need_card_int && (host->ifmode == MEMSTICK_SERIAL)) { 370 err = ms_read_bytes(host, MS_TPC_GET_INT, 371 NO_WAIT_INT, 1, &int_reg, NULL); 372 if (err < 0) 373 return err; 374 } 375 376 if (req->need_card_int) { 377 dev_dbg(ms_dev(host), "int_reg: 0x%02x\n", int_reg); 378 379 if (int_reg & MS_INT_CMDNK) 380 req->int_reg |= MEMSTICK_INT_CMDNAK; 381 if (int_reg & MS_INT_BREQ) 382 req->int_reg |= MEMSTICK_INT_BREQ; 383 if (int_reg & MS_INT_ERR) 384 req->int_reg |= MEMSTICK_INT_ERR; 385 if (int_reg & MS_INT_CED) 386 req->int_reg |= MEMSTICK_INT_CED; 387 } 388 389 return 0; 390 } 391 392 static void rtsx_pci_ms_handle_req(struct work_struct *work) 393 { 394 struct realtek_pci_ms *host = container_of(work, 395 struct realtek_pci_ms, handle_req); 396 struct rtsx_pcr *pcr = host->pcr; 397 struct memstick_host *msh = host->msh; 398 int rc; 399 400 mutex_lock(&pcr->pcr_mutex); 401 402 rtsx_pci_start_run(pcr); 403 404 rtsx_pci_switch_clock(host->pcr, host->clock, host->ssc_depth, 405 false, true, false); 406 rtsx_pci_write_register(pcr, CARD_SELECT, 0x07, MS_MOD_SEL); 407 rtsx_pci_write_register(pcr, CARD_SHARE_MODE, 408 CARD_SHARE_MASK, CARD_SHARE_48_MS); 409 410 if (!host->req) { 411 do { 412 rc = memstick_next_req(msh, &host->req); 413 dev_dbg(ms_dev(host), "next req %d\n", rc); 414 415 if (!rc) 416 host->req->error = rtsx_pci_ms_issue_cmd(host); 417 } while (!rc); 418 } 419 420 mutex_unlock(&pcr->pcr_mutex); 421 } 422 423 static void rtsx_pci_ms_request(struct memstick_host *msh) 424 { 425 struct realtek_pci_ms *host = memstick_priv(msh); 426 427 dev_dbg(ms_dev(host), "--> %s\n", __func__); 428 429 schedule_work(&host->handle_req); 430 } 431 432 static int rtsx_pci_ms_set_param(struct memstick_host *msh, 433 enum memstick_param param, int value) 434 { 435 struct realtek_pci_ms *host = memstick_priv(msh); 436 struct rtsx_pcr *pcr = host->pcr; 437 unsigned int clock = 0; 438 u8 ssc_depth = 0; 439 int err; 440 441 dev_dbg(ms_dev(host), "%s: param = %d, value = %d\n", 442 __func__, param, value); 443 444 switch (param) { 445 case MEMSTICK_POWER: 446 if (value == MEMSTICK_POWER_ON) 447 err = ms_power_on(host); 448 else if (value == MEMSTICK_POWER_OFF) 449 err = ms_power_off(host); 450 else 451 return -EINVAL; 452 break; 453 454 case MEMSTICK_INTERFACE: 455 if (value == MEMSTICK_SERIAL) { 456 clock = 19000000; 457 ssc_depth = RTSX_SSC_DEPTH_500K; 458 459 err = rtsx_pci_write_register(pcr, MS_CFG, 460 0x18, MS_BUS_WIDTH_1); 461 if (err < 0) 462 return err; 463 } else if (value == MEMSTICK_PAR4) { 464 clock = 39000000; 465 ssc_depth = RTSX_SSC_DEPTH_1M; 466 467 err = rtsx_pci_write_register(pcr, MS_CFG, 468 0x58, MS_BUS_WIDTH_4 | PUSH_TIME_ODD); 469 if (err < 0) 470 return err; 471 } else { 472 return -EINVAL; 473 } 474 475 err = rtsx_pci_switch_clock(pcr, clock, 476 ssc_depth, false, true, false); 477 if (err < 0) 478 return err; 479 480 host->ssc_depth = ssc_depth; 481 host->clock = clock; 482 host->ifmode = value; 483 break; 484 } 485 486 return 0; 487 } 488 489 #ifdef CONFIG_PM 490 491 static int rtsx_pci_ms_suspend(struct platform_device *pdev, pm_message_t state) 492 { 493 struct realtek_pci_ms *host = platform_get_drvdata(pdev); 494 struct memstick_host *msh = host->msh; 495 496 dev_dbg(ms_dev(host), "--> %s\n", __func__); 497 498 memstick_suspend_host(msh); 499 return 0; 500 } 501 502 static int rtsx_pci_ms_resume(struct platform_device *pdev) 503 { 504 struct realtek_pci_ms *host = platform_get_drvdata(pdev); 505 struct memstick_host *msh = host->msh; 506 507 dev_dbg(ms_dev(host), "--> %s\n", __func__); 508 509 memstick_resume_host(msh); 510 return 0; 511 } 512 513 #else /* CONFIG_PM */ 514 515 #define rtsx_pci_ms_suspend NULL 516 #define rtsx_pci_ms_resume NULL 517 518 #endif /* CONFIG_PM */ 519 520 static void rtsx_pci_ms_card_event(struct platform_device *pdev) 521 { 522 struct realtek_pci_ms *host = platform_get_drvdata(pdev); 523 524 memstick_detect_change(host->msh); 525 } 526 527 static int rtsx_pci_ms_drv_probe(struct platform_device *pdev) 528 { 529 struct memstick_host *msh; 530 struct realtek_pci_ms *host; 531 struct rtsx_pcr *pcr; 532 struct pcr_handle *handle = pdev->dev.platform_data; 533 int rc; 534 535 if (!handle) 536 return -ENXIO; 537 538 pcr = handle->pcr; 539 if (!pcr) 540 return -ENXIO; 541 542 dev_dbg(&(pdev->dev), 543 ": Realtek PCI-E Memstick controller found\n"); 544 545 msh = memstick_alloc_host(sizeof(*host), &pdev->dev); 546 if (!msh) 547 return -ENOMEM; 548 549 host = memstick_priv(msh); 550 host->pcr = pcr; 551 host->msh = msh; 552 host->pdev = pdev; 553 platform_set_drvdata(pdev, host); 554 pcr->slots[RTSX_MS_CARD].p_dev = pdev; 555 pcr->slots[RTSX_MS_CARD].card_event = rtsx_pci_ms_card_event; 556 557 mutex_init(&host->host_mutex); 558 559 INIT_WORK(&host->handle_req, rtsx_pci_ms_handle_req); 560 msh->request = rtsx_pci_ms_request; 561 msh->set_param = rtsx_pci_ms_set_param; 562 msh->caps = MEMSTICK_CAP_PAR4; 563 564 rc = memstick_add_host(msh); 565 if (rc) { 566 memstick_free_host(msh); 567 return rc; 568 } 569 570 return 0; 571 } 572 573 static int rtsx_pci_ms_drv_remove(struct platform_device *pdev) 574 { 575 struct realtek_pci_ms *host = platform_get_drvdata(pdev); 576 struct rtsx_pcr *pcr; 577 struct memstick_host *msh; 578 int rc; 579 580 if (!host) 581 return 0; 582 583 pcr = host->pcr; 584 pcr->slots[RTSX_MS_CARD].p_dev = NULL; 585 pcr->slots[RTSX_MS_CARD].card_event = NULL; 586 msh = host->msh; 587 host->eject = true; 588 589 mutex_lock(&host->host_mutex); 590 if (host->req) { 591 dev_dbg(&(pdev->dev), 592 "%s: Controller removed during transfer\n", 593 dev_name(&msh->dev)); 594 595 rtsx_pci_complete_unfinished_transfer(pcr); 596 597 host->req->error = -ENOMEDIUM; 598 do { 599 rc = memstick_next_req(msh, &host->req); 600 if (!rc) 601 host->req->error = -ENOMEDIUM; 602 } while (!rc); 603 } 604 mutex_unlock(&host->host_mutex); 605 606 memstick_remove_host(msh); 607 memstick_free_host(msh); 608 609 platform_set_drvdata(pdev, NULL); 610 611 dev_dbg(&(pdev->dev), 612 ": Realtek PCI-E Memstick controller has been removed\n"); 613 614 return 0; 615 } 616 617 static struct platform_device_id rtsx_pci_ms_ids[] = { 618 { 619 .name = DRV_NAME_RTSX_PCI_MS, 620 }, { 621 /* sentinel */ 622 } 623 }; 624 MODULE_DEVICE_TABLE(platform, rtsx_pci_ms_ids); 625 626 static struct platform_driver rtsx_pci_ms_driver = { 627 .probe = rtsx_pci_ms_drv_probe, 628 .remove = rtsx_pci_ms_drv_remove, 629 .id_table = rtsx_pci_ms_ids, 630 .suspend = rtsx_pci_ms_suspend, 631 .resume = rtsx_pci_ms_resume, 632 .driver = { 633 .owner = THIS_MODULE, 634 .name = DRV_NAME_RTSX_PCI_MS, 635 }, 636 }; 637 module_platform_driver(rtsx_pci_ms_driver); 638 639 MODULE_LICENSE("GPL"); 640 MODULE_AUTHOR("Wei WANG <wei_wang@realsil.com.cn>"); 641 MODULE_DESCRIPTION("Realtek PCI-E Memstick Card Host Driver"); 642