Loading...
1/* Driver for Realtek RTS51xx USB card reader
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 * wwang (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/blkdev.h>
25#include <linux/kthread.h>
26#include <linux/sched.h>
27#include <linux/kernel.h>
28#include <linux/version.h>
29
30#include <scsi/scsi.h>
31#include <scsi/scsi_cmnd.h>
32#include <scsi/scsi_device.h>
33#include <linux/cdrom.h>
34
35#include <linux/usb.h>
36#include <linux/slab.h>
37#include <linux/usb_usual.h>
38
39#include "usb.h"
40#include "transport.h"
41#include "protocol.h"
42#include "debug.h"
43
44MODULE_DESCRIPTION("Driver for Realtek USB Card Reader");
45MODULE_AUTHOR("wwang <wei_wang@realsil.com.cn>");
46MODULE_LICENSE("GPL");
47MODULE_VERSION("1.03");
48
49static int auto_delink_en = 1;
50module_param(auto_delink_en, int, S_IRUGO | S_IWUSR);
51MODULE_PARM_DESC(auto_delink_en, "enable auto delink");
52
53#ifdef CONFIG_REALTEK_AUTOPM
54static int ss_en = 1;
55module_param(ss_en, int, S_IRUGO | S_IWUSR);
56MODULE_PARM_DESC(ss_en, "enable selective suspend");
57
58static int ss_delay = 50;
59module_param(ss_delay, int, S_IRUGO | S_IWUSR);
60MODULE_PARM_DESC(ss_delay,
61 "seconds to delay before entering selective suspend");
62
63enum RTS51X_STAT {
64 RTS51X_STAT_INIT,
65 RTS51X_STAT_IDLE,
66 RTS51X_STAT_RUN,
67 RTS51X_STAT_SS
68};
69
70#define POLLING_INTERVAL 50
71
72#define rts51x_set_stat(chip, stat) \
73 ((chip)->state = (enum RTS51X_STAT)(stat))
74#define rts51x_get_stat(chip) ((chip)->state)
75
76#define SET_LUN_READY(chip, lun) ((chip)->lun_ready |= ((u8)1 << (lun)))
77#define CLR_LUN_READY(chip, lun) ((chip)->lun_ready &= ~((u8)1 << (lun)))
78#define TST_LUN_READY(chip, lun) ((chip)->lun_ready & ((u8)1 << (lun)))
79
80#endif
81
82struct rts51x_status {
83 u16 vid;
84 u16 pid;
85 u8 cur_lun;
86 u8 card_type;
87 u8 total_lun;
88 u16 fw_ver;
89 u8 phy_exist;
90 u8 multi_flag;
91 u8 multi_card;
92 u8 log_exist;
93 union {
94 u8 detailed_type1;
95 u8 detailed_type2;
96 } detailed_type;
97 u8 function[2];
98};
99
100struct rts51x_chip {
101 u16 vendor_id;
102 u16 product_id;
103 char max_lun;
104
105 struct rts51x_status *status;
106 int status_len;
107
108 u32 flag;
109#ifdef CONFIG_REALTEK_AUTOPM
110 struct us_data *us;
111 struct timer_list rts51x_suspend_timer;
112 unsigned long timer_expires;
113 int pwr_state;
114 u8 lun_ready;
115 enum RTS51X_STAT state;
116 int support_auto_delink;
117#endif
118 /* used to back up the protocal choosen in probe1 phase */
119 proto_cmnd proto_handler_backup;
120};
121
122/* flag definition */
123#define FLIDX_AUTO_DELINK 0x01
124
125#define SCSI_LUN(srb) ((srb)->device->lun)
126
127/* Bit Operation */
128#define SET_BIT(data, idx) ((data) |= 1 << (idx))
129#define CLR_BIT(data, idx) ((data) &= ~(1 << (idx)))
130#define CHK_BIT(data, idx) ((data) & (1 << (idx)))
131
132#define SET_AUTO_DELINK(chip) ((chip)->flag |= FLIDX_AUTO_DELINK)
133#define CLR_AUTO_DELINK(chip) ((chip)->flag &= ~FLIDX_AUTO_DELINK)
134#define CHK_AUTO_DELINK(chip) ((chip)->flag & FLIDX_AUTO_DELINK)
135
136#define RTS51X_GET_VID(chip) ((chip)->vendor_id)
137#define RTS51X_GET_PID(chip) ((chip)->product_id)
138
139#define VENDOR_ID(chip) ((chip)->status[0].vid)
140#define PRODUCT_ID(chip) ((chip)->status[0].pid)
141#define FW_VERSION(chip) ((chip)->status[0].fw_ver)
142#define STATUS_LEN(chip) ((chip)->status_len)
143
144#define STATUS_SUCCESS 0
145#define STATUS_FAIL 1
146
147/* Check card reader function */
148#define SUPPORT_DETAILED_TYPE1(chip) \
149 CHK_BIT((chip)->status[0].function[0], 1)
150#define SUPPORT_OT(chip) \
151 CHK_BIT((chip)->status[0].function[0], 2)
152#define SUPPORT_OC(chip) \
153 CHK_BIT((chip)->status[0].function[0], 3)
154#define SUPPORT_AUTO_DELINK(chip) \
155 CHK_BIT((chip)->status[0].function[0], 4)
156#define SUPPORT_SDIO(chip) \
157 CHK_BIT((chip)->status[0].function[1], 0)
158#define SUPPORT_DETAILED_TYPE2(chip) \
159 CHK_BIT((chip)->status[0].function[1], 1)
160
161#define CHECK_PID(chip, pid) (RTS51X_GET_PID(chip) == (pid))
162#define CHECK_FW_VER(chip, fw_ver) (FW_VERSION(chip) == (fw_ver))
163#define CHECK_ID(chip, pid, fw_ver) \
164 (CHECK_PID((chip), (pid)) && CHECK_FW_VER((chip), (fw_ver)))
165
166static int init_realtek_cr(struct us_data *us);
167
168/*
169 * The table of devices
170 */
171#define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
172 vendorName, productName, useProtocol, useTransport, \
173 initFunction, flags) \
174{\
175 USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
176 .driver_info = (flags)|(USB_US_TYPE_STOR<<24)\
177}
178
179static const struct usb_device_id realtek_cr_ids[] = {
180# include "unusual_realtek.h"
181 {} /* Terminating entry */
182};
183
184MODULE_DEVICE_TABLE(usb, realtek_cr_ids);
185
186#undef UNUSUAL_DEV
187
188/*
189 * The flags table
190 */
191#define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \
192 vendor_name, product_name, use_protocol, use_transport, \
193 init_function, Flags) \
194{ \
195 .vendorName = vendor_name, \
196 .productName = product_name, \
197 .useProtocol = use_protocol, \
198 .useTransport = use_transport, \
199 .initFunction = init_function, \
200}
201
202static struct us_unusual_dev realtek_cr_unusual_dev_list[] = {
203# include "unusual_realtek.h"
204 {} /* Terminating entry */
205};
206
207#undef UNUSUAL_DEV
208
209static int rts51x_bulk_transport(struct us_data *us, u8 lun,
210 u8 *cmd, int cmd_len, u8 *buf, int buf_len,
211 enum dma_data_direction dir, int *act_len)
212{
213 struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *)us->iobuf;
214 struct bulk_cs_wrap *bcs = (struct bulk_cs_wrap *)us->iobuf;
215 int result;
216 unsigned int residue;
217 unsigned int cswlen;
218 unsigned int cbwlen = US_BULK_CB_WRAP_LEN;
219
220 /* set up the command wrapper */
221 bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
222 bcb->DataTransferLength = cpu_to_le32(buf_len);
223 bcb->Flags = (dir == DMA_FROM_DEVICE) ? 1 << 7 : 0;
224 bcb->Tag = ++us->tag;
225 bcb->Lun = lun;
226 bcb->Length = cmd_len;
227
228 /* copy the command payload */
229 memset(bcb->CDB, 0, sizeof(bcb->CDB));
230 memcpy(bcb->CDB, cmd, bcb->Length);
231
232 /* send it to out endpoint */
233 result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,
234 bcb, cbwlen, NULL);
235 if (result != USB_STOR_XFER_GOOD)
236 return USB_STOR_TRANSPORT_ERROR;
237
238 /* DATA STAGE */
239 /* send/receive data payload, if there is any */
240
241 if (buf && buf_len) {
242 unsigned int pipe = (dir == DMA_FROM_DEVICE) ?
243 us->recv_bulk_pipe : us->send_bulk_pipe;
244 result = usb_stor_bulk_transfer_buf(us, pipe,
245 buf, buf_len, NULL);
246 if (result == USB_STOR_XFER_ERROR)
247 return USB_STOR_TRANSPORT_ERROR;
248 }
249
250 /* get CSW for device status */
251 result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
252 bcs, US_BULK_CS_WRAP_LEN, &cswlen);
253 if (result != USB_STOR_XFER_GOOD)
254 return USB_STOR_TRANSPORT_ERROR;
255
256 /* check bulk status */
257 if (bcs->Signature != cpu_to_le32(US_BULK_CS_SIGN)) {
258 US_DEBUGP("Signature mismatch: got %08X, expecting %08X\n",
259 le32_to_cpu(bcs->Signature), US_BULK_CS_SIGN);
260 return USB_STOR_TRANSPORT_ERROR;
261 }
262
263 residue = bcs->Residue;
264 if (bcs->Tag != us->tag)
265 return USB_STOR_TRANSPORT_ERROR;
266
267 /* try to compute the actual residue, based on how much data
268 * was really transferred and what the device tells us */
269 if (residue)
270 residue = residue < buf_len ? residue : buf_len;
271
272 if (act_len)
273 *act_len = buf_len - residue;
274
275 /* based on the status code, we report good or bad */
276 switch (bcs->Status) {
277 case US_BULK_STAT_OK:
278 /* command good -- note that data could be short */
279 return USB_STOR_TRANSPORT_GOOD;
280
281 case US_BULK_STAT_FAIL:
282 /* command failed */
283 return USB_STOR_TRANSPORT_FAILED;
284
285 case US_BULK_STAT_PHASE:
286 /* phase error -- note that a transport reset will be
287 * invoked by the invoke_transport() function
288 */
289 return USB_STOR_TRANSPORT_ERROR;
290 }
291
292 /* we should never get here, but if we do, we're in trouble */
293 return USB_STOR_TRANSPORT_ERROR;
294}
295
296/* Determine what the maximum LUN supported is */
297static int rts51x_get_max_lun(struct us_data *us)
298{
299 int result;
300
301 /* issue the command */
302 us->iobuf[0] = 0;
303 result = usb_stor_control_msg(us, us->recv_ctrl_pipe,
304 US_BULK_GET_MAX_LUN,
305 USB_DIR_IN | USB_TYPE_CLASS |
306 USB_RECIP_INTERFACE,
307 0, us->ifnum, us->iobuf, 1, 10 * HZ);
308
309 US_DEBUGP("GetMaxLUN command result is %d, data is %d\n",
310 result, us->iobuf[0]);
311
312 /* if we have a successful request, return the result */
313 if (result > 0)
314 return us->iobuf[0];
315
316 return 0;
317}
318
319static int rts51x_read_mem(struct us_data *us, u16 addr, u8 *data, u16 len)
320{
321 int retval;
322 u8 cmnd[12] = { 0 };
323
324 US_DEBUGP("%s, addr = 0x%x, len = %d\n", __func__, addr, len);
325
326 cmnd[0] = 0xF0;
327 cmnd[1] = 0x0D;
328 cmnd[2] = (u8) (addr >> 8);
329 cmnd[3] = (u8) addr;
330 cmnd[4] = (u8) (len >> 8);
331 cmnd[5] = (u8) len;
332
333 retval = rts51x_bulk_transport(us, 0, cmnd, 12,
334 data, len, DMA_FROM_DEVICE, NULL);
335 if (retval != USB_STOR_TRANSPORT_GOOD)
336 return -EIO;
337
338 return 0;
339}
340
341static int rts51x_write_mem(struct us_data *us, u16 addr, u8 *data, u16 len)
342{
343 int retval;
344 u8 cmnd[12] = { 0 };
345
346 US_DEBUGP("%s, addr = 0x%x, len = %d\n", __func__, addr, len);
347
348 cmnd[0] = 0xF0;
349 cmnd[1] = 0x0E;
350 cmnd[2] = (u8) (addr >> 8);
351 cmnd[3] = (u8) addr;
352 cmnd[4] = (u8) (len >> 8);
353 cmnd[5] = (u8) len;
354
355 retval = rts51x_bulk_transport(us, 0, cmnd, 12,
356 data, len, DMA_TO_DEVICE, NULL);
357 if (retval != USB_STOR_TRANSPORT_GOOD)
358 return -EIO;
359
360 return 0;
361}
362
363static int rts51x_read_status(struct us_data *us,
364 u8 lun, u8 *status, int len, int *actlen)
365{
366 int retval;
367 u8 cmnd[12] = { 0 };
368
369 US_DEBUGP("%s, lun = %d\n", __func__, lun);
370
371 cmnd[0] = 0xF0;
372 cmnd[1] = 0x09;
373
374 retval = rts51x_bulk_transport(us, lun, cmnd, 12,
375 status, len, DMA_FROM_DEVICE, actlen);
376 if (retval != USB_STOR_TRANSPORT_GOOD)
377 return -EIO;
378
379 return 0;
380}
381
382static int rts51x_check_status(struct us_data *us, u8 lun)
383{
384 struct rts51x_chip *chip = (struct rts51x_chip *)(us->extra);
385 int retval;
386 u8 buf[16];
387
388 retval = rts51x_read_status(us, lun, buf, 16, &(chip->status_len));
389 if (retval < 0)
390 return -EIO;
391
392 US_DEBUGP("chip->status_len = %d\n", chip->status_len);
393
394 chip->status[lun].vid = ((u16) buf[0] << 8) | buf[1];
395 chip->status[lun].pid = ((u16) buf[2] << 8) | buf[3];
396 chip->status[lun].cur_lun = buf[4];
397 chip->status[lun].card_type = buf[5];
398 chip->status[lun].total_lun = buf[6];
399 chip->status[lun].fw_ver = ((u16) buf[7] << 8) | buf[8];
400 chip->status[lun].phy_exist = buf[9];
401 chip->status[lun].multi_flag = buf[10];
402 chip->status[lun].multi_card = buf[11];
403 chip->status[lun].log_exist = buf[12];
404 if (chip->status_len == 16) {
405 chip->status[lun].detailed_type.detailed_type1 = buf[13];
406 chip->status[lun].function[0] = buf[14];
407 chip->status[lun].function[1] = buf[15];
408 }
409
410 return 0;
411}
412
413static int enable_oscillator(struct us_data *us)
414{
415 int retval;
416 u8 value;
417
418 retval = rts51x_read_mem(us, 0xFE77, &value, 1);
419 if (retval < 0)
420 return -EIO;
421
422 value |= 0x04;
423 retval = rts51x_write_mem(us, 0xFE77, &value, 1);
424 if (retval < 0)
425 return -EIO;
426
427 retval = rts51x_read_mem(us, 0xFE77, &value, 1);
428 if (retval < 0)
429 return -EIO;
430
431 if (!(value & 0x04))
432 return -EIO;
433
434 return 0;
435}
436
437static int do_config_autodelink(struct us_data *us, int enable, int force)
438{
439 int retval;
440 u8 value;
441
442 retval = rts51x_read_mem(us, 0xFE47, &value, 1);
443 if (retval < 0)
444 return -EIO;
445
446 if (enable) {
447 if (force)
448 value |= 0x03;
449 else
450 value |= 0x01;
451 } else {
452 value &= ~0x03;
453 }
454
455 US_DEBUGP("In %s,set 0xfe47 to 0x%x\n", __func__, value);
456
457 retval = rts51x_write_mem(us, 0xFE47, &value, 1);
458 if (retval < 0)
459 return -EIO;
460
461 return 0;
462}
463
464static int config_autodelink_after_power_on(struct us_data *us)
465{
466 struct rts51x_chip *chip = (struct rts51x_chip *)(us->extra);
467 int retval;
468 u8 value;
469
470 US_DEBUGP("%s: <---\n", __func__);
471
472 if (!CHK_AUTO_DELINK(chip))
473 return 0;
474
475 retval = rts51x_read_mem(us, 0xFE47, &value, 1);
476 if (retval < 0)
477 return -EIO;
478
479 if (auto_delink_en) {
480 CLR_BIT(value, 0);
481 CLR_BIT(value, 1);
482 SET_BIT(value, 2);
483
484 if (CHECK_ID(chip, 0x0138, 0x3882))
485 CLR_BIT(value, 2);
486
487 SET_BIT(value, 7);
488
489 retval = rts51x_write_mem(us, 0xFE47, &value, 1);
490 if (retval < 0)
491 return -EIO;
492
493 retval = enable_oscillator(us);
494 if (retval == 0)
495 (void)do_config_autodelink(us, 1, 0);
496 } else {
497 /* Autodelink controlled by firmware */
498
499 SET_BIT(value, 2);
500
501 if (CHECK_ID(chip, 0x0138, 0x3882))
502 CLR_BIT(value, 2);
503
504 if (CHECK_ID(chip, 0x0159, 0x5889) ||
505 CHECK_ID(chip, 0x0138, 0x3880)) {
506 CLR_BIT(value, 0);
507 CLR_BIT(value, 7);
508 }
509
510 retval = rts51x_write_mem(us, 0xFE47, &value, 1);
511 if (retval < 0)
512 return -EIO;
513
514 if (CHECK_ID(chip, 0x0159, 0x5888)) {
515 value = 0xFF;
516 retval = rts51x_write_mem(us, 0xFE79, &value, 1);
517 if (retval < 0)
518 return -EIO;
519
520 value = 0x01;
521 retval = rts51x_write_mem(us, 0x48, &value, 1);
522 if (retval < 0)
523 return -EIO;
524 }
525 }
526
527 US_DEBUGP("%s: --->\n", __func__);
528
529 return 0;
530}
531
532static int config_autodelink_before_power_down(struct us_data *us)
533{
534 struct rts51x_chip *chip = (struct rts51x_chip *)(us->extra);
535 int retval;
536 u8 value;
537
538 US_DEBUGP("%s: <---\n", __func__);
539
540 if (!CHK_AUTO_DELINK(chip))
541 return 0;
542
543 if (auto_delink_en) {
544 retval = rts51x_read_mem(us, 0xFE77, &value, 1);
545 if (retval < 0)
546 return -EIO;
547
548 SET_BIT(value, 2);
549 retval = rts51x_write_mem(us, 0xFE77, &value, 1);
550 if (retval < 0)
551 return -EIO;
552
553 if (CHECK_ID(chip, 0x0159, 0x5888)) {
554 value = 0x01;
555 retval = rts51x_write_mem(us, 0x48, &value, 1);
556 if (retval < 0)
557 return -EIO;
558 }
559
560 retval = rts51x_read_mem(us, 0xFE47, &value, 1);
561 if (retval < 0)
562 return -EIO;
563
564 SET_BIT(value, 0);
565 if (CHECK_ID(chip, 0x0138, 0x3882))
566 SET_BIT(value, 2);
567 retval = rts51x_write_mem(us, 0xFE77, &value, 1);
568 if (retval < 0)
569 return -EIO;
570 } else {
571 if (CHECK_ID(chip, 0x0159, 0x5889) ||
572 CHECK_ID(chip, 0x0138, 0x3880) ||
573 CHECK_ID(chip, 0x0138, 0x3882)) {
574 retval = rts51x_read_mem(us, 0xFE47, &value, 1);
575 if (retval < 0)
576 return -EIO;
577
578 if (CHECK_ID(chip, 0x0159, 0x5889) ||
579 CHECK_ID(chip, 0x0138, 0x3880)) {
580 SET_BIT(value, 0);
581 SET_BIT(value, 7);
582 }
583
584 if (CHECK_ID(chip, 0x0138, 0x3882))
585 SET_BIT(value, 2);
586
587 retval = rts51x_write_mem(us, 0xFE47, &value, 1);
588 if (retval < 0)
589 return -EIO;
590 }
591
592 if (CHECK_ID(chip, 0x0159, 0x5888)) {
593 value = 0x01;
594 retval = rts51x_write_mem(us, 0x48, &value, 1);
595 if (retval < 0)
596 return -EIO;
597 }
598 }
599
600 US_DEBUGP("%s: --->\n", __func__);
601
602 return 0;
603}
604
605static void fw5895_init(struct us_data *us)
606{
607 struct rts51x_chip *chip = (struct rts51x_chip *)(us->extra);
608 int retval;
609 u8 val;
610
611 US_DEBUGP("%s: <---\n", __func__);
612
613 if ((PRODUCT_ID(chip) != 0x0158) || (FW_VERSION(chip) != 0x5895)) {
614 US_DEBUGP("Not the specified device, return immediately!\n");
615 } else {
616 retval = rts51x_read_mem(us, 0xFD6F, &val, 1);
617 if (retval == STATUS_SUCCESS && (val & 0x1F) == 0) {
618 val = 0x1F;
619 retval = rts51x_write_mem(us, 0xFD70, &val, 1);
620 if (retval != STATUS_SUCCESS)
621 US_DEBUGP("Write memory fail\n");
622 } else {
623 US_DEBUGP("Read memory fail, OR (val & 0x1F) != 0\n");
624 }
625 }
626
627 US_DEBUGP("%s: --->\n", __func__);
628}
629
630#ifdef CONFIG_REALTEK_AUTOPM
631static void fw5895_set_mmc_wp(struct us_data *us)
632{
633 struct rts51x_chip *chip = (struct rts51x_chip *)(us->extra);
634 int retval;
635 u8 buf[13];
636
637 US_DEBUGP("%s: <---\n", __func__);
638
639 if ((PRODUCT_ID(chip) != 0x0158) || (FW_VERSION(chip) != 0x5895)) {
640 US_DEBUGP("Not the specified device, return immediately!\n");
641 } else {
642 retval = rts51x_read_mem(us, 0xFD6F, buf, 1);
643 if (retval == STATUS_SUCCESS && (buf[0] & 0x24) == 0x24) {
644 /* SD Exist and SD WP */
645 retval = rts51x_read_mem(us, 0xD04E, buf, 1);
646 if (retval == STATUS_SUCCESS) {
647 buf[0] |= 0x04;
648 retval = rts51x_write_mem(us, 0xFD70, buf, 1);
649 if (retval != STATUS_SUCCESS)
650 US_DEBUGP("Write memory fail\n");
651 } else {
652 US_DEBUGP("Read memory fail\n");
653 }
654 } else {
655 US_DEBUGP("Read memory fail, OR (buf[0]&0x24)!=0x24\n");
656 }
657 }
658
659 US_DEBUGP("%s: --->\n", __func__);
660}
661
662static void rts51x_modi_suspend_timer(struct rts51x_chip *chip)
663{
664 US_DEBUGP("%s: <---, state:%d\n", __func__, rts51x_get_stat(chip));
665
666 chip->timer_expires = jiffies + msecs_to_jiffies(1000*ss_delay);
667 mod_timer(&chip->rts51x_suspend_timer, chip->timer_expires);
668
669 US_DEBUGP("%s: --->\n", __func__);
670}
671
672static void rts51x_suspend_timer_fn(unsigned long data)
673{
674 struct rts51x_chip *chip = (struct rts51x_chip *)data;
675 struct us_data *us = chip->us;
676
677 US_DEBUGP("%s: <---\n", __func__);
678
679 switch (rts51x_get_stat(chip)) {
680 case RTS51X_STAT_INIT:
681 case RTS51X_STAT_RUN:
682 rts51x_modi_suspend_timer(chip);
683 break;
684 case RTS51X_STAT_IDLE:
685 case RTS51X_STAT_SS:
686 US_DEBUGP("%s: RTS51X_STAT_SS, intf->pm_usage_cnt:%d,"
687 "power.usage:%d\n", __func__,
688 atomic_read(&us->pusb_intf->pm_usage_cnt),
689 atomic_read(&us->pusb_intf->dev.power.usage_count));
690
691 if (atomic_read(&us->pusb_intf->pm_usage_cnt) > 0) {
692 US_DEBUGP("%s: Ready to enter SS state.\n",
693 __func__);
694 rts51x_set_stat(chip, RTS51X_STAT_SS);
695 /* ignore mass storage interface's children */
696 pm_suspend_ignore_children(&us->pusb_intf->dev, true);
697 usb_autopm_put_interface(us->pusb_intf);
698 US_DEBUGP("%s: RTS51X_STAT_SS 01,"
699 "intf->pm_usage_cnt:%d, power.usage:%d\n",
700 __func__,
701 atomic_read(&us->pusb_intf->pm_usage_cnt),
702 atomic_read(
703 &us->pusb_intf->dev.power.usage_count));
704 }
705 break;
706 default:
707 US_DEBUGP("%s: Unknonwn state !!!\n", __func__);
708 break;
709 }
710
711 US_DEBUGP("%s: --->\n", __func__);
712}
713
714static inline int working_scsi(struct scsi_cmnd *srb)
715{
716 if ((srb->cmnd[0] == TEST_UNIT_READY) ||
717 (srb->cmnd[0] == ALLOW_MEDIUM_REMOVAL)) {
718 return 0;
719 }
720
721 return 1;
722}
723
724void rts51x_invoke_transport(struct scsi_cmnd *srb, struct us_data *us)
725{
726 struct rts51x_chip *chip = (struct rts51x_chip *)(us->extra);
727 static int card_first_show = 1;
728 static u8 media_not_present[] = { 0x70, 0, 0x02, 0, 0, 0, 0,
729 10, 0, 0, 0, 0, 0x3A, 0, 0, 0, 0, 0
730 };
731 static u8 invalid_cmd_field[] = { 0x70, 0, 0x05, 0, 0, 0, 0,
732 10, 0, 0, 0, 0, 0x24, 0, 0, 0, 0, 0
733 };
734 int ret;
735
736 US_DEBUGP("%s: <---\n", __func__);
737
738 if (working_scsi(srb)) {
739 US_DEBUGP("%s: working scsi, intf->pm_usage_cnt:%d,"
740 "power.usage:%d\n", __func__,
741 atomic_read(&us->pusb_intf->pm_usage_cnt),
742 atomic_read(&us->pusb_intf->dev.power.usage_count));
743
744 if (atomic_read(&us->pusb_intf->pm_usage_cnt) <= 0) {
745 ret = usb_autopm_get_interface(us->pusb_intf);
746 US_DEBUGP("%s: working scsi, ret=%d\n", __func__, ret);
747 }
748 if (rts51x_get_stat(chip) != RTS51X_STAT_RUN)
749 rts51x_set_stat(chip, RTS51X_STAT_RUN);
750 chip->proto_handler_backup(srb, us);
751 } else {
752 if (rts51x_get_stat(chip) == RTS51X_STAT_SS) {
753 US_DEBUGP("%s: NOT working scsi\n", __func__);
754 if ((srb->cmnd[0] == TEST_UNIT_READY) &&
755 (chip->pwr_state == US_SUSPEND)) {
756 if (TST_LUN_READY(chip, srb->device->lun)) {
757 srb->result = SAM_STAT_GOOD;
758 } else {
759 srb->result = SAM_STAT_CHECK_CONDITION;
760 memcpy(srb->sense_buffer,
761 media_not_present,
762 US_SENSE_SIZE);
763 }
764 US_DEBUGP("%s: TEST_UNIT_READY--->\n",
765 __func__);
766 goto out;
767 }
768 if (srb->cmnd[0] == ALLOW_MEDIUM_REMOVAL) {
769 int prevent = srb->cmnd[4] & 0x1;
770 if (prevent) {
771 srb->result = SAM_STAT_CHECK_CONDITION;
772 memcpy(srb->sense_buffer,
773 invalid_cmd_field,
774 US_SENSE_SIZE);
775 } else {
776 srb->result = SAM_STAT_GOOD;
777 }
778 US_DEBUGP("%s: ALLOW_MEDIUM_REMOVAL--->\n",
779 __func__);
780 goto out;
781 }
782 } else {
783 US_DEBUGP("%s: NOT working scsi, not SS\n", __func__);
784 chip->proto_handler_backup(srb, us);
785 /* Check wether card is plugged in */
786 if (srb->cmnd[0] == TEST_UNIT_READY) {
787 if (srb->result == SAM_STAT_GOOD) {
788 SET_LUN_READY(chip, srb->device->lun);
789 if (card_first_show) {
790 card_first_show = 0;
791 fw5895_set_mmc_wp(us);
792 }
793 } else {
794 CLR_LUN_READY(chip, srb->device->lun);
795 card_first_show = 1;
796 }
797 }
798 if (rts51x_get_stat(chip) != RTS51X_STAT_IDLE)
799 rts51x_set_stat(chip, RTS51X_STAT_IDLE);
800 }
801 }
802out:
803 US_DEBUGP("%s: state:%d\n", __func__, rts51x_get_stat(chip));
804 if (rts51x_get_stat(chip) == RTS51X_STAT_RUN)
805 rts51x_modi_suspend_timer(chip);
806
807 US_DEBUGP("%s: --->\n", __func__);
808}
809
810static int realtek_cr_autosuspend_setup(struct us_data *us)
811{
812 struct rts51x_chip *chip;
813 struct rts51x_status *status = NULL;
814 u8 buf[16];
815 int retval;
816
817 chip = (struct rts51x_chip *)us->extra;
818 chip->support_auto_delink = 0;
819 chip->pwr_state = US_RESUME;
820 chip->lun_ready = 0;
821 rts51x_set_stat(chip, RTS51X_STAT_INIT);
822
823 retval = rts51x_read_status(us, 0, buf, 16, &(chip->status_len));
824 if (retval != STATUS_SUCCESS) {
825 US_DEBUGP("Read status fail\n");
826 return -EIO;
827 }
828 status = chip->status;
829 status->vid = ((u16) buf[0] << 8) | buf[1];
830 status->pid = ((u16) buf[2] << 8) | buf[3];
831 status->cur_lun = buf[4];
832 status->card_type = buf[5];
833 status->total_lun = buf[6];
834 status->fw_ver = ((u16) buf[7] << 8) | buf[8];
835 status->phy_exist = buf[9];
836 status->multi_flag = buf[10];
837 status->multi_card = buf[11];
838 status->log_exist = buf[12];
839 if (chip->status_len == 16) {
840 status->detailed_type.detailed_type1 = buf[13];
841 status->function[0] = buf[14];
842 status->function[1] = buf[15];
843 }
844
845 /* back up the proto_handler in us->extra */
846 chip = (struct rts51x_chip *)(us->extra);
847 chip->proto_handler_backup = us->proto_handler;
848 /* Set the autosuspend_delay to 0 */
849 pm_runtime_set_autosuspend_delay(&us->pusb_dev->dev, 0);
850 /* override us->proto_handler setted in get_protocol() */
851 us->proto_handler = rts51x_invoke_transport;
852
853 chip->timer_expires = 0;
854 setup_timer(&chip->rts51x_suspend_timer, rts51x_suspend_timer_fn,
855 (unsigned long)chip);
856 fw5895_init(us);
857
858 /* enable autosuspend funciton of the usb device */
859 usb_enable_autosuspend(us->pusb_dev);
860
861 return 0;
862}
863#endif
864
865static void realtek_cr_destructor(void *extra)
866{
867 struct rts51x_chip *chip = (struct rts51x_chip *)extra;
868
869 US_DEBUGP("%s: <---\n", __func__);
870
871 if (!chip)
872 return;
873#ifdef CONFIG_REALTEK_AUTOPM
874 if (ss_en) {
875 del_timer(&chip->rts51x_suspend_timer);
876 chip->timer_expires = 0;
877 }
878#endif
879 kfree(chip->status);
880}
881
882#ifdef CONFIG_PM
883int realtek_cr_suspend(struct usb_interface *iface, pm_message_t message)
884{
885 struct us_data *us = usb_get_intfdata(iface);
886
887 US_DEBUGP("%s: <---\n", __func__);
888
889 /* wait until no command is running */
890 mutex_lock(&us->dev_mutex);
891
892 config_autodelink_before_power_down(us);
893
894 mutex_unlock(&us->dev_mutex);
895
896 US_DEBUGP("%s: --->\n", __func__);
897
898 return 0;
899}
900
901static int realtek_cr_resume(struct usb_interface *iface)
902{
903 struct us_data *us = usb_get_intfdata(iface);
904
905 US_DEBUGP("%s: <---\n", __func__);
906
907 fw5895_init(us);
908 config_autodelink_after_power_on(us);
909
910 US_DEBUGP("%s: --->\n", __func__);
911
912 return 0;
913}
914#else
915#define realtek_cr_suspend NULL
916#define realtek_cr_resume NULL
917#endif
918
919static int init_realtek_cr(struct us_data *us)
920{
921 struct rts51x_chip *chip;
922 int size, i, retval;
923
924 chip = kzalloc(sizeof(struct rts51x_chip), GFP_KERNEL);
925 if (!chip)
926 return -ENOMEM;
927
928 us->extra = chip;
929 us->extra_destructor = realtek_cr_destructor;
930 us->max_lun = chip->max_lun = rts51x_get_max_lun(us);
931
932 US_DEBUGP("chip->max_lun = %d\n", chip->max_lun);
933
934 size = (chip->max_lun + 1) * sizeof(struct rts51x_status);
935 chip->status = kzalloc(size, GFP_KERNEL);
936 if (!chip->status)
937 goto INIT_FAIL;
938
939 for (i = 0; i <= (int)(chip->max_lun); i++) {
940 retval = rts51x_check_status(us, (u8) i);
941 if (retval < 0)
942 goto INIT_FAIL;
943 }
944
945 if (CHECK_FW_VER(chip, 0x5888) || CHECK_FW_VER(chip, 0x5889) ||
946 CHECK_FW_VER(chip, 0x5901))
947 SET_AUTO_DELINK(chip);
948 if (STATUS_LEN(chip) == 16) {
949 if (SUPPORT_AUTO_DELINK(chip))
950 SET_AUTO_DELINK(chip);
951 }
952#ifdef CONFIG_REALTEK_AUTOPM
953 if (ss_en) {
954 chip->us = us;
955 realtek_cr_autosuspend_setup(us);
956 }
957#endif
958
959 US_DEBUGP("chip->flag = 0x%x\n", chip->flag);
960
961 (void)config_autodelink_after_power_on(us);
962
963 return 0;
964
965INIT_FAIL:
966 if (us->extra) {
967 kfree(chip->status);
968 kfree(us->extra);
969 us->extra = NULL;
970 }
971
972 return -EIO;
973}
974
975static int realtek_cr_probe(struct usb_interface *intf,
976 const struct usb_device_id *id)
977{
978 struct us_data *us;
979 int result;
980
981 US_DEBUGP("Probe Realtek Card Reader!\n");
982
983 result = usb_stor_probe1(&us, intf, id,
984 (id - realtek_cr_ids) +
985 realtek_cr_unusual_dev_list);
986 if (result)
987 return result;
988
989 result = usb_stor_probe2(us);
990
991 return result;
992}
993
994static struct usb_driver realtek_cr_driver = {
995 .name = "ums-realtek",
996 .probe = realtek_cr_probe,
997 .disconnect = usb_stor_disconnect,
998 /* .suspend = usb_stor_suspend, */
999 /* .resume = usb_stor_resume, */
1000 .reset_resume = usb_stor_reset_resume,
1001 .suspend = realtek_cr_suspend,
1002 .resume = realtek_cr_resume,
1003 .pre_reset = usb_stor_pre_reset,
1004 .post_reset = usb_stor_post_reset,
1005 .id_table = realtek_cr_ids,
1006 .soft_unbind = 1,
1007 .supports_autosuspend = 1,
1008};
1009
1010static int __init realtek_cr_init(void)
1011{
1012 return usb_register(&realtek_cr_driver);
1013}
1014
1015static void __exit realtek_cr_exit(void)
1016{
1017 usb_deregister(&realtek_cr_driver);
1018}
1019
1020module_init(realtek_cr_init);
1021module_exit(realtek_cr_exit);
1/* Driver for Realtek RTS51xx USB card reader
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 * wwang (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/blkdev.h>
25#include <linux/kthread.h>
26#include <linux/sched.h>
27#include <linux/kernel.h>
28
29#include <scsi/scsi.h>
30#include <scsi/scsi_cmnd.h>
31#include <scsi/scsi_device.h>
32#include <linux/cdrom.h>
33
34#include <linux/usb.h>
35#include <linux/slab.h>
36#include <linux/usb_usual.h>
37
38#include "usb.h"
39#include "transport.h"
40#include "protocol.h"
41#include "debug.h"
42
43MODULE_DESCRIPTION("Driver for Realtek USB Card Reader");
44MODULE_AUTHOR("wwang <wei_wang@realsil.com.cn>");
45MODULE_LICENSE("GPL");
46MODULE_VERSION("1.03");
47
48static int auto_delink_en = 1;
49module_param(auto_delink_en, int, S_IRUGO | S_IWUSR);
50MODULE_PARM_DESC(auto_delink_en, "enable auto delink");
51
52#ifdef CONFIG_REALTEK_AUTOPM
53static int ss_en = 1;
54module_param(ss_en, int, S_IRUGO | S_IWUSR);
55MODULE_PARM_DESC(ss_en, "enable selective suspend");
56
57static int ss_delay = 50;
58module_param(ss_delay, int, S_IRUGO | S_IWUSR);
59MODULE_PARM_DESC(ss_delay,
60 "seconds to delay before entering selective suspend");
61
62enum RTS51X_STAT {
63 RTS51X_STAT_INIT,
64 RTS51X_STAT_IDLE,
65 RTS51X_STAT_RUN,
66 RTS51X_STAT_SS
67};
68
69#define POLLING_INTERVAL 50
70
71#define rts51x_set_stat(chip, stat) \
72 ((chip)->state = (enum RTS51X_STAT)(stat))
73#define rts51x_get_stat(chip) ((chip)->state)
74
75#define SET_LUN_READY(chip, lun) ((chip)->lun_ready |= ((u8)1 << (lun)))
76#define CLR_LUN_READY(chip, lun) ((chip)->lun_ready &= ~((u8)1 << (lun)))
77#define TST_LUN_READY(chip, lun) ((chip)->lun_ready & ((u8)1 << (lun)))
78
79#endif
80
81struct rts51x_status {
82 u16 vid;
83 u16 pid;
84 u8 cur_lun;
85 u8 card_type;
86 u8 total_lun;
87 u16 fw_ver;
88 u8 phy_exist;
89 u8 multi_flag;
90 u8 multi_card;
91 u8 log_exist;
92 union {
93 u8 detailed_type1;
94 u8 detailed_type2;
95 } detailed_type;
96 u8 function[2];
97};
98
99struct rts51x_chip {
100 u16 vendor_id;
101 u16 product_id;
102 char max_lun;
103
104 struct rts51x_status *status;
105 int status_len;
106
107 u32 flag;
108#ifdef CONFIG_REALTEK_AUTOPM
109 struct us_data *us;
110 struct timer_list rts51x_suspend_timer;
111 unsigned long timer_expires;
112 int pwr_state;
113 u8 lun_ready;
114 enum RTS51X_STAT state;
115 int support_auto_delink;
116#endif
117 /* used to back up the protocal choosen in probe1 phase */
118 proto_cmnd proto_handler_backup;
119};
120
121/* flag definition */
122#define FLIDX_AUTO_DELINK 0x01
123
124#define SCSI_LUN(srb) ((srb)->device->lun)
125
126/* Bit Operation */
127#define SET_BIT(data, idx) ((data) |= 1 << (idx))
128#define CLR_BIT(data, idx) ((data) &= ~(1 << (idx)))
129#define CHK_BIT(data, idx) ((data) & (1 << (idx)))
130
131#define SET_AUTO_DELINK(chip) ((chip)->flag |= FLIDX_AUTO_DELINK)
132#define CLR_AUTO_DELINK(chip) ((chip)->flag &= ~FLIDX_AUTO_DELINK)
133#define CHK_AUTO_DELINK(chip) ((chip)->flag & FLIDX_AUTO_DELINK)
134
135#define RTS51X_GET_VID(chip) ((chip)->vendor_id)
136#define RTS51X_GET_PID(chip) ((chip)->product_id)
137
138#define VENDOR_ID(chip) ((chip)->status[0].vid)
139#define PRODUCT_ID(chip) ((chip)->status[0].pid)
140#define FW_VERSION(chip) ((chip)->status[0].fw_ver)
141#define STATUS_LEN(chip) ((chip)->status_len)
142
143#define STATUS_SUCCESS 0
144#define STATUS_FAIL 1
145
146/* Check card reader function */
147#define SUPPORT_DETAILED_TYPE1(chip) \
148 CHK_BIT((chip)->status[0].function[0], 1)
149#define SUPPORT_OT(chip) \
150 CHK_BIT((chip)->status[0].function[0], 2)
151#define SUPPORT_OC(chip) \
152 CHK_BIT((chip)->status[0].function[0], 3)
153#define SUPPORT_AUTO_DELINK(chip) \
154 CHK_BIT((chip)->status[0].function[0], 4)
155#define SUPPORT_SDIO(chip) \
156 CHK_BIT((chip)->status[0].function[1], 0)
157#define SUPPORT_DETAILED_TYPE2(chip) \
158 CHK_BIT((chip)->status[0].function[1], 1)
159
160#define CHECK_PID(chip, pid) (RTS51X_GET_PID(chip) == (pid))
161#define CHECK_FW_VER(chip, fw_ver) (FW_VERSION(chip) == (fw_ver))
162#define CHECK_ID(chip, pid, fw_ver) \
163 (CHECK_PID((chip), (pid)) && CHECK_FW_VER((chip), (fw_ver)))
164
165static int init_realtek_cr(struct us_data *us);
166
167/*
168 * The table of devices
169 */
170#define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
171 vendorName, productName, useProtocol, useTransport, \
172 initFunction, flags) \
173{\
174 USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
175 .driver_info = (flags)|(USB_US_TYPE_STOR<<24)\
176}
177
178static const struct usb_device_id realtek_cr_ids[] = {
179# include "unusual_realtek.h"
180 {} /* Terminating entry */
181};
182
183MODULE_DEVICE_TABLE(usb, realtek_cr_ids);
184
185#undef UNUSUAL_DEV
186
187/*
188 * The flags table
189 */
190#define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \
191 vendor_name, product_name, use_protocol, use_transport, \
192 init_function, Flags) \
193{ \
194 .vendorName = vendor_name, \
195 .productName = product_name, \
196 .useProtocol = use_protocol, \
197 .useTransport = use_transport, \
198 .initFunction = init_function, \
199}
200
201static struct us_unusual_dev realtek_cr_unusual_dev_list[] = {
202# include "unusual_realtek.h"
203 {} /* Terminating entry */
204};
205
206#undef UNUSUAL_DEV
207
208static int rts51x_bulk_transport(struct us_data *us, u8 lun,
209 u8 *cmd, int cmd_len, u8 *buf, int buf_len,
210 enum dma_data_direction dir, int *act_len)
211{
212 struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *)us->iobuf;
213 struct bulk_cs_wrap *bcs = (struct bulk_cs_wrap *)us->iobuf;
214 int result;
215 unsigned int residue;
216 unsigned int cswlen;
217 unsigned int cbwlen = US_BULK_CB_WRAP_LEN;
218
219 /* set up the command wrapper */
220 bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
221 bcb->DataTransferLength = cpu_to_le32(buf_len);
222 bcb->Flags = (dir == DMA_FROM_DEVICE) ? US_BULK_FLAG_IN : 0;
223 bcb->Tag = ++us->tag;
224 bcb->Lun = lun;
225 bcb->Length = cmd_len;
226
227 /* copy the command payload */
228 memset(bcb->CDB, 0, sizeof(bcb->CDB));
229 memcpy(bcb->CDB, cmd, bcb->Length);
230
231 /* send it to out endpoint */
232 result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,
233 bcb, cbwlen, NULL);
234 if (result != USB_STOR_XFER_GOOD)
235 return USB_STOR_TRANSPORT_ERROR;
236
237 /* DATA STAGE */
238 /* send/receive data payload, if there is any */
239
240 if (buf && buf_len) {
241 unsigned int pipe = (dir == DMA_FROM_DEVICE) ?
242 us->recv_bulk_pipe : us->send_bulk_pipe;
243 result = usb_stor_bulk_transfer_buf(us, pipe,
244 buf, buf_len, NULL);
245 if (result == USB_STOR_XFER_ERROR)
246 return USB_STOR_TRANSPORT_ERROR;
247 }
248
249 /* get CSW for device status */
250 result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
251 bcs, US_BULK_CS_WRAP_LEN, &cswlen);
252 if (result != USB_STOR_XFER_GOOD)
253 return USB_STOR_TRANSPORT_ERROR;
254
255 /* check bulk status */
256 if (bcs->Signature != cpu_to_le32(US_BULK_CS_SIGN)) {
257 US_DEBUGP("Signature mismatch: got %08X, expecting %08X\n",
258 le32_to_cpu(bcs->Signature), US_BULK_CS_SIGN);
259 return USB_STOR_TRANSPORT_ERROR;
260 }
261
262 residue = bcs->Residue;
263 if (bcs->Tag != us->tag)
264 return USB_STOR_TRANSPORT_ERROR;
265
266 /* try to compute the actual residue, based on how much data
267 * was really transferred and what the device tells us */
268 if (residue)
269 residue = residue < buf_len ? residue : buf_len;
270
271 if (act_len)
272 *act_len = buf_len - residue;
273
274 /* based on the status code, we report good or bad */
275 switch (bcs->Status) {
276 case US_BULK_STAT_OK:
277 /* command good -- note that data could be short */
278 return USB_STOR_TRANSPORT_GOOD;
279
280 case US_BULK_STAT_FAIL:
281 /* command failed */
282 return USB_STOR_TRANSPORT_FAILED;
283
284 case US_BULK_STAT_PHASE:
285 /* phase error -- note that a transport reset will be
286 * invoked by the invoke_transport() function
287 */
288 return USB_STOR_TRANSPORT_ERROR;
289 }
290
291 /* we should never get here, but if we do, we're in trouble */
292 return USB_STOR_TRANSPORT_ERROR;
293}
294
295static int rts51x_bulk_transport_special(struct us_data *us, u8 lun,
296 u8 *cmd, int cmd_len, u8 *buf, int buf_len,
297 enum dma_data_direction dir, int *act_len)
298{
299 struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
300 struct bulk_cs_wrap *bcs = (struct bulk_cs_wrap *) us->iobuf;
301 int result;
302 unsigned int cswlen;
303 unsigned int cbwlen = US_BULK_CB_WRAP_LEN;
304
305 /* set up the command wrapper */
306 bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
307 bcb->DataTransferLength = cpu_to_le32(buf_len);
308 bcb->Flags = (dir == DMA_FROM_DEVICE) ? US_BULK_FLAG_IN : 0;
309 bcb->Tag = ++us->tag;
310 bcb->Lun = lun;
311 bcb->Length = cmd_len;
312
313 /* copy the command payload */
314 memset(bcb->CDB, 0, sizeof(bcb->CDB));
315 memcpy(bcb->CDB, cmd, bcb->Length);
316
317 /* send it to out endpoint */
318 result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,
319 bcb, cbwlen, NULL);
320 if (result != USB_STOR_XFER_GOOD)
321 return USB_STOR_TRANSPORT_ERROR;
322
323 /* DATA STAGE */
324 /* send/receive data payload, if there is any */
325
326 if (buf && buf_len) {
327 unsigned int pipe = (dir == DMA_FROM_DEVICE) ?
328 us->recv_bulk_pipe : us->send_bulk_pipe;
329 result = usb_stor_bulk_transfer_buf(us, pipe,
330 buf, buf_len, NULL);
331 if (result == USB_STOR_XFER_ERROR)
332 return USB_STOR_TRANSPORT_ERROR;
333 }
334
335 /* get CSW for device status */
336 result = usb_bulk_msg(us->pusb_dev, us->recv_bulk_pipe, bcs,
337 US_BULK_CS_WRAP_LEN, &cswlen, 250);
338 return result;
339}
340
341/* Determine what the maximum LUN supported is */
342static int rts51x_get_max_lun(struct us_data *us)
343{
344 int result;
345
346 /* issue the command */
347 us->iobuf[0] = 0;
348 result = usb_stor_control_msg(us, us->recv_ctrl_pipe,
349 US_BULK_GET_MAX_LUN,
350 USB_DIR_IN | USB_TYPE_CLASS |
351 USB_RECIP_INTERFACE,
352 0, us->ifnum, us->iobuf, 1, 10 * HZ);
353
354 US_DEBUGP("GetMaxLUN command result is %d, data is %d\n",
355 result, us->iobuf[0]);
356
357 /* if we have a successful request, return the result */
358 if (result > 0)
359 return us->iobuf[0];
360
361 return 0;
362}
363
364static int rts51x_read_mem(struct us_data *us, u16 addr, u8 *data, u16 len)
365{
366 int retval;
367 u8 cmnd[12] = { 0 };
368 u8 *buf;
369
370 buf = kmalloc(len, GFP_NOIO);
371 if (buf == NULL)
372 return USB_STOR_TRANSPORT_ERROR;
373
374 US_DEBUGP("%s, addr = 0x%x, len = %d\n", __func__, addr, len);
375
376 cmnd[0] = 0xF0;
377 cmnd[1] = 0x0D;
378 cmnd[2] = (u8) (addr >> 8);
379 cmnd[3] = (u8) addr;
380 cmnd[4] = (u8) (len >> 8);
381 cmnd[5] = (u8) len;
382
383 retval = rts51x_bulk_transport(us, 0, cmnd, 12,
384 buf, len, DMA_FROM_DEVICE, NULL);
385 if (retval != USB_STOR_TRANSPORT_GOOD) {
386 kfree(buf);
387 return -EIO;
388 }
389
390 memcpy(data, buf, len);
391 kfree(buf);
392 return 0;
393}
394
395static int rts51x_write_mem(struct us_data *us, u16 addr, u8 *data, u16 len)
396{
397 int retval;
398 u8 cmnd[12] = { 0 };
399 u8 *buf;
400
401 buf = kmemdup(data, len, GFP_NOIO);
402 if (buf == NULL)
403 return USB_STOR_TRANSPORT_ERROR;
404
405 US_DEBUGP("%s, addr = 0x%x, len = %d\n", __func__, addr, len);
406
407 cmnd[0] = 0xF0;
408 cmnd[1] = 0x0E;
409 cmnd[2] = (u8) (addr >> 8);
410 cmnd[3] = (u8) addr;
411 cmnd[4] = (u8) (len >> 8);
412 cmnd[5] = (u8) len;
413
414 retval = rts51x_bulk_transport(us, 0, cmnd, 12,
415 buf, len, DMA_TO_DEVICE, NULL);
416 kfree(buf);
417 if (retval != USB_STOR_TRANSPORT_GOOD)
418 return -EIO;
419
420 return 0;
421}
422
423static int rts51x_read_status(struct us_data *us,
424 u8 lun, u8 *status, int len, int *actlen)
425{
426 int retval;
427 u8 cmnd[12] = { 0 };
428 u8 *buf;
429
430 buf = kmalloc(len, GFP_NOIO);
431 if (buf == NULL)
432 return USB_STOR_TRANSPORT_ERROR;
433
434 US_DEBUGP("%s, lun = %d\n", __func__, lun);
435
436 cmnd[0] = 0xF0;
437 cmnd[1] = 0x09;
438
439 retval = rts51x_bulk_transport(us, lun, cmnd, 12,
440 buf, len, DMA_FROM_DEVICE, actlen);
441 if (retval != USB_STOR_TRANSPORT_GOOD) {
442 kfree(buf);
443 return -EIO;
444 }
445
446 memcpy(status, buf, len);
447 kfree(buf);
448 return 0;
449}
450
451static int rts51x_check_status(struct us_data *us, u8 lun)
452{
453 struct rts51x_chip *chip = (struct rts51x_chip *)(us->extra);
454 int retval;
455 u8 buf[16];
456
457 retval = rts51x_read_status(us, lun, buf, 16, &(chip->status_len));
458 if (retval < 0)
459 return -EIO;
460
461 US_DEBUGP("chip->status_len = %d\n", chip->status_len);
462
463 chip->status[lun].vid = ((u16) buf[0] << 8) | buf[1];
464 chip->status[lun].pid = ((u16) buf[2] << 8) | buf[3];
465 chip->status[lun].cur_lun = buf[4];
466 chip->status[lun].card_type = buf[5];
467 chip->status[lun].total_lun = buf[6];
468 chip->status[lun].fw_ver = ((u16) buf[7] << 8) | buf[8];
469 chip->status[lun].phy_exist = buf[9];
470 chip->status[lun].multi_flag = buf[10];
471 chip->status[lun].multi_card = buf[11];
472 chip->status[lun].log_exist = buf[12];
473 if (chip->status_len == 16) {
474 chip->status[lun].detailed_type.detailed_type1 = buf[13];
475 chip->status[lun].function[0] = buf[14];
476 chip->status[lun].function[1] = buf[15];
477 }
478
479 return 0;
480}
481
482static int enable_oscillator(struct us_data *us)
483{
484 int retval;
485 u8 value;
486
487 retval = rts51x_read_mem(us, 0xFE77, &value, 1);
488 if (retval < 0)
489 return -EIO;
490
491 value |= 0x04;
492 retval = rts51x_write_mem(us, 0xFE77, &value, 1);
493 if (retval < 0)
494 return -EIO;
495
496 retval = rts51x_read_mem(us, 0xFE77, &value, 1);
497 if (retval < 0)
498 return -EIO;
499
500 if (!(value & 0x04))
501 return -EIO;
502
503 return 0;
504}
505
506static int __do_config_autodelink(struct us_data *us, u8 *data, u16 len)
507{
508 int retval;
509 u8 cmnd[12] = {0};
510 u8 *buf;
511
512 US_DEBUGP("%s, addr = 0xfe47, len = %d\n", __FUNCTION__, len);
513
514 buf = kmemdup(data, len, GFP_NOIO);
515 if (!buf)
516 return USB_STOR_TRANSPORT_ERROR;
517
518 cmnd[0] = 0xF0;
519 cmnd[1] = 0x0E;
520 cmnd[2] = 0xfe;
521 cmnd[3] = 0x47;
522 cmnd[4] = (u8)(len >> 8);
523 cmnd[5] = (u8)len;
524
525 retval = rts51x_bulk_transport_special(us, 0, cmnd, 12, buf, len, DMA_TO_DEVICE, NULL);
526 kfree(buf);
527 if (retval != USB_STOR_TRANSPORT_GOOD) {
528 return -EIO;
529 }
530
531 return 0;
532}
533
534static int do_config_autodelink(struct us_data *us, int enable, int force)
535{
536 int retval;
537 u8 value;
538
539 retval = rts51x_read_mem(us, 0xFE47, &value, 1);
540 if (retval < 0)
541 return -EIO;
542
543 if (enable) {
544 if (force)
545 value |= 0x03;
546 else
547 value |= 0x01;
548 } else {
549 value &= ~0x03;
550 }
551
552 US_DEBUGP("In %s,set 0xfe47 to 0x%x\n", __func__, value);
553
554 /* retval = rts51x_write_mem(us, 0xFE47, &value, 1); */
555 retval = __do_config_autodelink(us, &value, 1);
556 if (retval < 0)
557 return -EIO;
558
559 return 0;
560}
561
562static int config_autodelink_after_power_on(struct us_data *us)
563{
564 struct rts51x_chip *chip = (struct rts51x_chip *)(us->extra);
565 int retval;
566 u8 value;
567
568 US_DEBUGP("%s: <---\n", __func__);
569
570 if (!CHK_AUTO_DELINK(chip))
571 return 0;
572
573 retval = rts51x_read_mem(us, 0xFE47, &value, 1);
574 if (retval < 0)
575 return -EIO;
576
577 if (auto_delink_en) {
578 CLR_BIT(value, 0);
579 CLR_BIT(value, 1);
580 SET_BIT(value, 2);
581
582 if (CHECK_ID(chip, 0x0138, 0x3882))
583 CLR_BIT(value, 2);
584
585 SET_BIT(value, 7);
586
587 /* retval = rts51x_write_mem(us, 0xFE47, &value, 1); */
588 retval = __do_config_autodelink(us, &value, 1);
589 if (retval < 0)
590 return -EIO;
591
592 retval = enable_oscillator(us);
593 if (retval == 0)
594 (void)do_config_autodelink(us, 1, 0);
595 } else {
596 /* Autodelink controlled by firmware */
597
598 SET_BIT(value, 2);
599
600 if (CHECK_ID(chip, 0x0138, 0x3882))
601 CLR_BIT(value, 2);
602
603 if (CHECK_ID(chip, 0x0159, 0x5889) ||
604 CHECK_ID(chip, 0x0138, 0x3880)) {
605 CLR_BIT(value, 0);
606 CLR_BIT(value, 7);
607 }
608
609 /* retval = rts51x_write_mem(us, 0xFE47, &value, 1); */
610 retval = __do_config_autodelink(us, &value, 1);
611 if (retval < 0)
612 return -EIO;
613
614 if (CHECK_ID(chip, 0x0159, 0x5888)) {
615 value = 0xFF;
616 retval = rts51x_write_mem(us, 0xFE79, &value, 1);
617 if (retval < 0)
618 return -EIO;
619
620 value = 0x01;
621 retval = rts51x_write_mem(us, 0x48, &value, 1);
622 if (retval < 0)
623 return -EIO;
624 }
625 }
626
627 US_DEBUGP("%s: --->\n", __func__);
628
629 return 0;
630}
631
632static int config_autodelink_before_power_down(struct us_data *us)
633{
634 struct rts51x_chip *chip = (struct rts51x_chip *)(us->extra);
635 int retval;
636 u8 value;
637
638 US_DEBUGP("%s: <---\n", __func__);
639
640 if (!CHK_AUTO_DELINK(chip))
641 return 0;
642
643 if (auto_delink_en) {
644 retval = rts51x_read_mem(us, 0xFE77, &value, 1);
645 if (retval < 0)
646 return -EIO;
647
648 SET_BIT(value, 2);
649 retval = rts51x_write_mem(us, 0xFE77, &value, 1);
650 if (retval < 0)
651 return -EIO;
652
653 if (CHECK_ID(chip, 0x0159, 0x5888)) {
654 value = 0x01;
655 retval = rts51x_write_mem(us, 0x48, &value, 1);
656 if (retval < 0)
657 return -EIO;
658 }
659
660 retval = rts51x_read_mem(us, 0xFE47, &value, 1);
661 if (retval < 0)
662 return -EIO;
663
664 SET_BIT(value, 0);
665 if (CHECK_ID(chip, 0x0138, 0x3882))
666 SET_BIT(value, 2);
667 retval = rts51x_write_mem(us, 0xFE77, &value, 1);
668 if (retval < 0)
669 return -EIO;
670 } else {
671 if (CHECK_ID(chip, 0x0159, 0x5889) ||
672 CHECK_ID(chip, 0x0138, 0x3880) ||
673 CHECK_ID(chip, 0x0138, 0x3882)) {
674 retval = rts51x_read_mem(us, 0xFE47, &value, 1);
675 if (retval < 0)
676 return -EIO;
677
678 if (CHECK_ID(chip, 0x0159, 0x5889) ||
679 CHECK_ID(chip, 0x0138, 0x3880)) {
680 SET_BIT(value, 0);
681 SET_BIT(value, 7);
682 }
683
684 if (CHECK_ID(chip, 0x0138, 0x3882))
685 SET_BIT(value, 2);
686
687 /* retval = rts51x_write_mem(us, 0xFE47, &value, 1); */
688 retval = __do_config_autodelink(us, &value, 1);
689 if (retval < 0)
690 return -EIO;
691 }
692
693 if (CHECK_ID(chip, 0x0159, 0x5888)) {
694 value = 0x01;
695 retval = rts51x_write_mem(us, 0x48, &value, 1);
696 if (retval < 0)
697 return -EIO;
698 }
699 }
700
701 US_DEBUGP("%s: --->\n", __func__);
702
703 return 0;
704}
705
706static void fw5895_init(struct us_data *us)
707{
708 struct rts51x_chip *chip = (struct rts51x_chip *)(us->extra);
709 int retval;
710 u8 val;
711
712 US_DEBUGP("%s: <---\n", __func__);
713
714 if ((PRODUCT_ID(chip) != 0x0158) || (FW_VERSION(chip) != 0x5895)) {
715 US_DEBUGP("Not the specified device, return immediately!\n");
716 } else {
717 retval = rts51x_read_mem(us, 0xFD6F, &val, 1);
718 if (retval == STATUS_SUCCESS && (val & 0x1F) == 0) {
719 val = 0x1F;
720 retval = rts51x_write_mem(us, 0xFD70, &val, 1);
721 if (retval != STATUS_SUCCESS)
722 US_DEBUGP("Write memory fail\n");
723 } else {
724 US_DEBUGP("Read memory fail, OR (val & 0x1F) != 0\n");
725 }
726 }
727
728 US_DEBUGP("%s: --->\n", __func__);
729}
730
731#ifdef CONFIG_REALTEK_AUTOPM
732static void fw5895_set_mmc_wp(struct us_data *us)
733{
734 struct rts51x_chip *chip = (struct rts51x_chip *)(us->extra);
735 int retval;
736 u8 buf[13];
737
738 US_DEBUGP("%s: <---\n", __func__);
739
740 if ((PRODUCT_ID(chip) != 0x0158) || (FW_VERSION(chip) != 0x5895)) {
741 US_DEBUGP("Not the specified device, return immediately!\n");
742 } else {
743 retval = rts51x_read_mem(us, 0xFD6F, buf, 1);
744 if (retval == STATUS_SUCCESS && (buf[0] & 0x24) == 0x24) {
745 /* SD Exist and SD WP */
746 retval = rts51x_read_mem(us, 0xD04E, buf, 1);
747 if (retval == STATUS_SUCCESS) {
748 buf[0] |= 0x04;
749 retval = rts51x_write_mem(us, 0xFD70, buf, 1);
750 if (retval != STATUS_SUCCESS)
751 US_DEBUGP("Write memory fail\n");
752 } else {
753 US_DEBUGP("Read memory fail\n");
754 }
755 } else {
756 US_DEBUGP("Read memory fail, OR (buf[0]&0x24)!=0x24\n");
757 }
758 }
759
760 US_DEBUGP("%s: --->\n", __func__);
761}
762
763static void rts51x_modi_suspend_timer(struct rts51x_chip *chip)
764{
765 US_DEBUGP("%s: <---, state:%d\n", __func__, rts51x_get_stat(chip));
766
767 chip->timer_expires = jiffies + msecs_to_jiffies(1000*ss_delay);
768 mod_timer(&chip->rts51x_suspend_timer, chip->timer_expires);
769
770 US_DEBUGP("%s: --->\n", __func__);
771}
772
773static void rts51x_suspend_timer_fn(unsigned long data)
774{
775 struct rts51x_chip *chip = (struct rts51x_chip *)data;
776 struct us_data *us = chip->us;
777
778 US_DEBUGP("%s: <---\n", __func__);
779
780 switch (rts51x_get_stat(chip)) {
781 case RTS51X_STAT_INIT:
782 case RTS51X_STAT_RUN:
783 rts51x_modi_suspend_timer(chip);
784 break;
785 case RTS51X_STAT_IDLE:
786 case RTS51X_STAT_SS:
787 US_DEBUGP("%s: RTS51X_STAT_SS, intf->pm_usage_cnt:%d,"
788 "power.usage:%d\n", __func__,
789 atomic_read(&us->pusb_intf->pm_usage_cnt),
790 atomic_read(&us->pusb_intf->dev.power.usage_count));
791
792 if (atomic_read(&us->pusb_intf->pm_usage_cnt) > 0) {
793 US_DEBUGP("%s: Ready to enter SS state.\n",
794 __func__);
795 rts51x_set_stat(chip, RTS51X_STAT_SS);
796 /* ignore mass storage interface's children */
797 pm_suspend_ignore_children(&us->pusb_intf->dev, true);
798 usb_autopm_put_interface_async(us->pusb_intf);
799 US_DEBUGP("%s: RTS51X_STAT_SS 01,"
800 "intf->pm_usage_cnt:%d, power.usage:%d\n",
801 __func__,
802 atomic_read(&us->pusb_intf->pm_usage_cnt),
803 atomic_read(
804 &us->pusb_intf->dev.power.usage_count));
805 }
806 break;
807 default:
808 US_DEBUGP("%s: Unknonwn state !!!\n", __func__);
809 break;
810 }
811
812 US_DEBUGP("%s: --->\n", __func__);
813}
814
815static inline int working_scsi(struct scsi_cmnd *srb)
816{
817 if ((srb->cmnd[0] == TEST_UNIT_READY) ||
818 (srb->cmnd[0] == ALLOW_MEDIUM_REMOVAL)) {
819 return 0;
820 }
821
822 return 1;
823}
824
825static void rts51x_invoke_transport(struct scsi_cmnd *srb, struct us_data *us)
826{
827 struct rts51x_chip *chip = (struct rts51x_chip *)(us->extra);
828 static int card_first_show = 1;
829 static u8 media_not_present[] = { 0x70, 0, 0x02, 0, 0, 0, 0,
830 10, 0, 0, 0, 0, 0x3A, 0, 0, 0, 0, 0
831 };
832 static u8 invalid_cmd_field[] = { 0x70, 0, 0x05, 0, 0, 0, 0,
833 10, 0, 0, 0, 0, 0x24, 0, 0, 0, 0, 0
834 };
835 int ret;
836
837 US_DEBUGP("%s: <---\n", __func__);
838
839 if (working_scsi(srb)) {
840 US_DEBUGP("%s: working scsi, intf->pm_usage_cnt:%d,"
841 "power.usage:%d\n", __func__,
842 atomic_read(&us->pusb_intf->pm_usage_cnt),
843 atomic_read(&us->pusb_intf->dev.power.usage_count));
844
845 if (atomic_read(&us->pusb_intf->pm_usage_cnt) <= 0) {
846 ret = usb_autopm_get_interface(us->pusb_intf);
847 US_DEBUGP("%s: working scsi, ret=%d\n", __func__, ret);
848 }
849 if (rts51x_get_stat(chip) != RTS51X_STAT_RUN)
850 rts51x_set_stat(chip, RTS51X_STAT_RUN);
851 chip->proto_handler_backup(srb, us);
852 } else {
853 if (rts51x_get_stat(chip) == RTS51X_STAT_SS) {
854 US_DEBUGP("%s: NOT working scsi\n", __func__);
855 if ((srb->cmnd[0] == TEST_UNIT_READY) &&
856 (chip->pwr_state == US_SUSPEND)) {
857 if (TST_LUN_READY(chip, srb->device->lun)) {
858 srb->result = SAM_STAT_GOOD;
859 } else {
860 srb->result = SAM_STAT_CHECK_CONDITION;
861 memcpy(srb->sense_buffer,
862 media_not_present,
863 US_SENSE_SIZE);
864 }
865 US_DEBUGP("%s: TEST_UNIT_READY--->\n",
866 __func__);
867 goto out;
868 }
869 if (srb->cmnd[0] == ALLOW_MEDIUM_REMOVAL) {
870 int prevent = srb->cmnd[4] & 0x1;
871 if (prevent) {
872 srb->result = SAM_STAT_CHECK_CONDITION;
873 memcpy(srb->sense_buffer,
874 invalid_cmd_field,
875 US_SENSE_SIZE);
876 } else {
877 srb->result = SAM_STAT_GOOD;
878 }
879 US_DEBUGP("%s: ALLOW_MEDIUM_REMOVAL--->\n",
880 __func__);
881 goto out;
882 }
883 } else {
884 US_DEBUGP("%s: NOT working scsi, not SS\n", __func__);
885 chip->proto_handler_backup(srb, us);
886 /* Check wether card is plugged in */
887 if (srb->cmnd[0] == TEST_UNIT_READY) {
888 if (srb->result == SAM_STAT_GOOD) {
889 SET_LUN_READY(chip, srb->device->lun);
890 if (card_first_show) {
891 card_first_show = 0;
892 fw5895_set_mmc_wp(us);
893 }
894 } else {
895 CLR_LUN_READY(chip, srb->device->lun);
896 card_first_show = 1;
897 }
898 }
899 if (rts51x_get_stat(chip) != RTS51X_STAT_IDLE)
900 rts51x_set_stat(chip, RTS51X_STAT_IDLE);
901 }
902 }
903out:
904 US_DEBUGP("%s: state:%d\n", __func__, rts51x_get_stat(chip));
905 if (rts51x_get_stat(chip) == RTS51X_STAT_RUN)
906 rts51x_modi_suspend_timer(chip);
907
908 US_DEBUGP("%s: --->\n", __func__);
909}
910
911static int realtek_cr_autosuspend_setup(struct us_data *us)
912{
913 struct rts51x_chip *chip;
914 struct rts51x_status *status = NULL;
915 u8 buf[16];
916 int retval;
917
918 chip = (struct rts51x_chip *)us->extra;
919 chip->support_auto_delink = 0;
920 chip->pwr_state = US_RESUME;
921 chip->lun_ready = 0;
922 rts51x_set_stat(chip, RTS51X_STAT_INIT);
923
924 retval = rts51x_read_status(us, 0, buf, 16, &(chip->status_len));
925 if (retval != STATUS_SUCCESS) {
926 US_DEBUGP("Read status fail\n");
927 return -EIO;
928 }
929 status = chip->status;
930 status->vid = ((u16) buf[0] << 8) | buf[1];
931 status->pid = ((u16) buf[2] << 8) | buf[3];
932 status->cur_lun = buf[4];
933 status->card_type = buf[5];
934 status->total_lun = buf[6];
935 status->fw_ver = ((u16) buf[7] << 8) | buf[8];
936 status->phy_exist = buf[9];
937 status->multi_flag = buf[10];
938 status->multi_card = buf[11];
939 status->log_exist = buf[12];
940 if (chip->status_len == 16) {
941 status->detailed_type.detailed_type1 = buf[13];
942 status->function[0] = buf[14];
943 status->function[1] = buf[15];
944 }
945
946 /* back up the proto_handler in us->extra */
947 chip = (struct rts51x_chip *)(us->extra);
948 chip->proto_handler_backup = us->proto_handler;
949 /* Set the autosuspend_delay to 0 */
950 pm_runtime_set_autosuspend_delay(&us->pusb_dev->dev, 0);
951 /* override us->proto_handler setted in get_protocol() */
952 us->proto_handler = rts51x_invoke_transport;
953
954 chip->timer_expires = 0;
955 setup_timer(&chip->rts51x_suspend_timer, rts51x_suspend_timer_fn,
956 (unsigned long)chip);
957 fw5895_init(us);
958
959 /* enable autosuspend funciton of the usb device */
960 usb_enable_autosuspend(us->pusb_dev);
961
962 return 0;
963}
964#endif
965
966static void realtek_cr_destructor(void *extra)
967{
968 struct rts51x_chip *chip = (struct rts51x_chip *)extra;
969
970 US_DEBUGP("%s: <---\n", __func__);
971
972 if (!chip)
973 return;
974#ifdef CONFIG_REALTEK_AUTOPM
975 if (ss_en) {
976 del_timer(&chip->rts51x_suspend_timer);
977 chip->timer_expires = 0;
978 }
979#endif
980 kfree(chip->status);
981}
982
983#ifdef CONFIG_PM
984static int realtek_cr_suspend(struct usb_interface *iface, pm_message_t message)
985{
986 struct us_data *us = usb_get_intfdata(iface);
987
988 US_DEBUGP("%s: <---\n", __func__);
989
990 /* wait until no command is running */
991 mutex_lock(&us->dev_mutex);
992
993 config_autodelink_before_power_down(us);
994
995 mutex_unlock(&us->dev_mutex);
996
997 US_DEBUGP("%s: --->\n", __func__);
998
999 return 0;
1000}
1001
1002static int realtek_cr_resume(struct usb_interface *iface)
1003{
1004 struct us_data *us = usb_get_intfdata(iface);
1005
1006 US_DEBUGP("%s: <---\n", __func__);
1007
1008 fw5895_init(us);
1009 config_autodelink_after_power_on(us);
1010
1011 US_DEBUGP("%s: --->\n", __func__);
1012
1013 return 0;
1014}
1015#else
1016#define realtek_cr_suspend NULL
1017#define realtek_cr_resume NULL
1018#endif
1019
1020static int init_realtek_cr(struct us_data *us)
1021{
1022 struct rts51x_chip *chip;
1023 int size, i, retval;
1024
1025 chip = kzalloc(sizeof(struct rts51x_chip), GFP_KERNEL);
1026 if (!chip)
1027 return -ENOMEM;
1028
1029 us->extra = chip;
1030 us->extra_destructor = realtek_cr_destructor;
1031 us->max_lun = chip->max_lun = rts51x_get_max_lun(us);
1032
1033 US_DEBUGP("chip->max_lun = %d\n", chip->max_lun);
1034
1035 size = (chip->max_lun + 1) * sizeof(struct rts51x_status);
1036 chip->status = kzalloc(size, GFP_KERNEL);
1037 if (!chip->status)
1038 goto INIT_FAIL;
1039
1040 for (i = 0; i <= (int)(chip->max_lun); i++) {
1041 retval = rts51x_check_status(us, (u8) i);
1042 if (retval < 0)
1043 goto INIT_FAIL;
1044 }
1045
1046 if (CHECK_FW_VER(chip, 0x5888) || CHECK_FW_VER(chip, 0x5889) ||
1047 CHECK_FW_VER(chip, 0x5901))
1048 SET_AUTO_DELINK(chip);
1049 if (STATUS_LEN(chip) == 16) {
1050 if (SUPPORT_AUTO_DELINK(chip))
1051 SET_AUTO_DELINK(chip);
1052 }
1053#ifdef CONFIG_REALTEK_AUTOPM
1054 if (ss_en) {
1055 chip->us = us;
1056 realtek_cr_autosuspend_setup(us);
1057 }
1058#endif
1059
1060 US_DEBUGP("chip->flag = 0x%x\n", chip->flag);
1061
1062 (void)config_autodelink_after_power_on(us);
1063
1064 return 0;
1065
1066INIT_FAIL:
1067 if (us->extra) {
1068 kfree(chip->status);
1069 kfree(us->extra);
1070 us->extra = NULL;
1071 }
1072
1073 return -EIO;
1074}
1075
1076static int realtek_cr_probe(struct usb_interface *intf,
1077 const struct usb_device_id *id)
1078{
1079 struct us_data *us;
1080 int result;
1081
1082 US_DEBUGP("Probe Realtek Card Reader!\n");
1083
1084 result = usb_stor_probe1(&us, intf, id,
1085 (id - realtek_cr_ids) +
1086 realtek_cr_unusual_dev_list);
1087 if (result)
1088 return result;
1089
1090 result = usb_stor_probe2(us);
1091
1092 return result;
1093}
1094
1095static struct usb_driver realtek_cr_driver = {
1096 .name = "ums-realtek",
1097 .probe = realtek_cr_probe,
1098 .disconnect = usb_stor_disconnect,
1099 /* .suspend = usb_stor_suspend, */
1100 /* .resume = usb_stor_resume, */
1101 .reset_resume = usb_stor_reset_resume,
1102 .suspend = realtek_cr_suspend,
1103 .resume = realtek_cr_resume,
1104 .pre_reset = usb_stor_pre_reset,
1105 .post_reset = usb_stor_post_reset,
1106 .id_table = realtek_cr_ids,
1107 .soft_unbind = 1,
1108 .supports_autosuspend = 1,
1109 .no_dynamic_id = 1,
1110};
1111
1112module_usb_driver(realtek_cr_driver);