1 /* Driver for Realtek RTS51xx USB card reader
3 * Copyright(c) 2009 Realtek Semiconductor Corp. All rights reserved.
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
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.
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/>.
19 * wwang (wei_wang@realsil.com.cn)
20 * No. 450, Shenhu Road, Suzhou Industry Park, Suzhou, China
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>
29 #include <scsi/scsi.h>
30 #include <scsi/scsi_cmnd.h>
31 #include <scsi/scsi_device.h>
32 #include <linux/cdrom.h>
34 #include <linux/usb.h>
35 #include <linux/slab.h>
36 #include <linux/usb_usual.h>
39 #include "transport.h"
43 MODULE_DESCRIPTION("Driver for Realtek USB Card Reader");
44 MODULE_AUTHOR("wwang <wei_wang@realsil.com.cn>");
45 MODULE_LICENSE("GPL");
46 MODULE_VERSION("1.03");
48 static int auto_delink_en = 1;
49 module_param(auto_delink_en, int, S_IRUGO | S_IWUSR);
50 MODULE_PARM_DESC(auto_delink_en, "enable auto delink");
52 #ifdef CONFIG_REALTEK_AUTOPM
54 module_param(ss_en, int, S_IRUGO | S_IWUSR);
55 MODULE_PARM_DESC(ss_en, "enable selective suspend");
57 static int ss_delay = 50;
58 module_param(ss_delay, int, S_IRUGO | S_IWUSR);
59 MODULE_PARM_DESC(ss_delay,
60 "seconds to delay before entering selective suspend");
69 #define POLLING_INTERVAL 50
71 #define rts51x_set_stat(chip, stat) \
72 ((chip)->state = (enum RTS51X_STAT)(stat))
73 #define rts51x_get_stat(chip) ((chip)->state)
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)))
81 struct rts51x_status {
104 struct rts51x_status *status;
108 #ifdef CONFIG_REALTEK_AUTOPM
110 struct timer_list rts51x_suspend_timer;
111 unsigned long timer_expires;
114 enum RTS51X_STAT state;
115 int support_auto_delink;
117 /* used to back up the protocal choosen in probe1 phase */
118 proto_cmnd proto_handler_backup;
121 /* flag definition */
122 #define FLIDX_AUTO_DELINK 0x01
124 #define SCSI_LUN(srb) ((srb)->device->lun)
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)))
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)
135 #define RTS51X_GET_VID(chip) ((chip)->vendor_id)
136 #define RTS51X_GET_PID(chip) ((chip)->product_id)
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)
143 #define STATUS_SUCCESS 0
144 #define STATUS_FAIL 1
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)
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)))
165 static int init_realtek_cr(struct us_data *us);
168 * The table of devices
170 #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
171 vendorName, productName, useProtocol, useTransport, \
172 initFunction, flags) \
174 USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
175 .driver_info = (flags)|(USB_US_TYPE_STOR<<24)\
178 static const struct usb_device_id realtek_cr_ids[] = {
179 # include "unusual_realtek.h"
180 {} /* Terminating entry */
183 MODULE_DEVICE_TABLE(usb, realtek_cr_ids);
190 #define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \
191 vendor_name, product_name, use_protocol, use_transport, \
192 init_function, Flags) \
194 .vendorName = vendor_name, \
195 .productName = product_name, \
196 .useProtocol = use_protocol, \
197 .useTransport = use_transport, \
198 .initFunction = init_function, \
201 static struct us_unusual_dev realtek_cr_unusual_dev_list[] = {
202 # include "unusual_realtek.h"
203 {} /* Terminating entry */
208 static 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)
212 struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *)us->iobuf;
213 struct bulk_cs_wrap *bcs = (struct bulk_cs_wrap *)us->iobuf;
215 unsigned int residue;
217 unsigned int cbwlen = US_BULK_CB_WRAP_LEN;
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) ? 1 << 7 : 0;
223 bcb->Tag = ++us->tag;
225 bcb->Length = cmd_len;
227 /* copy the command payload */
228 memset(bcb->CDB, 0, sizeof(bcb->CDB));
229 memcpy(bcb->CDB, cmd, bcb->Length);
231 /* send it to out endpoint */
232 result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,
234 if (result != USB_STOR_XFER_GOOD)
235 return USB_STOR_TRANSPORT_ERROR;
238 /* send/receive data payload, if there is any */
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,
245 if (result == USB_STOR_XFER_ERROR)
246 return USB_STOR_TRANSPORT_ERROR;
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;
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;
262 residue = bcs->Residue;
263 if (bcs->Tag != us->tag)
264 return USB_STOR_TRANSPORT_ERROR;
266 /* try to compute the actual residue, based on how much data
267 * was really transferred and what the device tells us */
269 residue = residue < buf_len ? residue : buf_len;
272 *act_len = buf_len - residue;
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;
280 case US_BULK_STAT_FAIL:
282 return USB_STOR_TRANSPORT_FAILED;
284 case US_BULK_STAT_PHASE:
285 /* phase error -- note that a transport reset will be
286 * invoked by the invoke_transport() function
288 return USB_STOR_TRANSPORT_ERROR;
291 /* we should never get here, but if we do, we're in trouble */
292 return USB_STOR_TRANSPORT_ERROR;
295 /* Determine what the maximum LUN supported is */
296 static int rts51x_get_max_lun(struct us_data *us)
300 /* issue the command */
302 result = usb_stor_control_msg(us, us->recv_ctrl_pipe,
304 USB_DIR_IN | USB_TYPE_CLASS |
306 0, us->ifnum, us->iobuf, 1, 10 * HZ);
308 US_DEBUGP("GetMaxLUN command result is %d, data is %d\n",
309 result, us->iobuf[0]);
311 /* if we have a successful request, return the result */
318 static int rts51x_read_mem(struct us_data *us, u16 addr, u8 *data, u16 len)
323 US_DEBUGP("%s, addr = 0x%x, len = %d\n", __func__, addr, len);
327 cmnd[2] = (u8) (addr >> 8);
329 cmnd[4] = (u8) (len >> 8);
332 retval = rts51x_bulk_transport(us, 0, cmnd, 12,
333 data, len, DMA_FROM_DEVICE, NULL);
334 if (retval != USB_STOR_TRANSPORT_GOOD)
340 static int rts51x_write_mem(struct us_data *us, u16 addr, u8 *data, u16 len)
345 US_DEBUGP("%s, addr = 0x%x, len = %d\n", __func__, addr, len);
349 cmnd[2] = (u8) (addr >> 8);
351 cmnd[4] = (u8) (len >> 8);
354 retval = rts51x_bulk_transport(us, 0, cmnd, 12,
355 data, len, DMA_TO_DEVICE, NULL);
356 if (retval != USB_STOR_TRANSPORT_GOOD)
362 static int rts51x_read_status(struct us_data *us,
363 u8 lun, u8 *status, int len, int *actlen)
368 US_DEBUGP("%s, lun = %d\n", __func__, lun);
373 retval = rts51x_bulk_transport(us, lun, cmnd, 12,
374 status, len, DMA_FROM_DEVICE, actlen);
375 if (retval != USB_STOR_TRANSPORT_GOOD)
381 static int rts51x_check_status(struct us_data *us, u8 lun)
383 struct rts51x_chip *chip = (struct rts51x_chip *)(us->extra);
387 retval = rts51x_read_status(us, lun, buf, 16, &(chip->status_len));
391 US_DEBUGP("chip->status_len = %d\n", chip->status_len);
393 chip->status[lun].vid = ((u16) buf[0] << 8) | buf[1];
394 chip->status[lun].pid = ((u16) buf[2] << 8) | buf[3];
395 chip->status[lun].cur_lun = buf[4];
396 chip->status[lun].card_type = buf[5];
397 chip->status[lun].total_lun = buf[6];
398 chip->status[lun].fw_ver = ((u16) buf[7] << 8) | buf[8];
399 chip->status[lun].phy_exist = buf[9];
400 chip->status[lun].multi_flag = buf[10];
401 chip->status[lun].multi_card = buf[11];
402 chip->status[lun].log_exist = buf[12];
403 if (chip->status_len == 16) {
404 chip->status[lun].detailed_type.detailed_type1 = buf[13];
405 chip->status[lun].function[0] = buf[14];
406 chip->status[lun].function[1] = buf[15];
412 static int enable_oscillator(struct us_data *us)
417 retval = rts51x_read_mem(us, 0xFE77, &value, 1);
422 retval = rts51x_write_mem(us, 0xFE77, &value, 1);
426 retval = rts51x_read_mem(us, 0xFE77, &value, 1);
436 static int do_config_autodelink(struct us_data *us, int enable, int force)
441 retval = rts51x_read_mem(us, 0xFE47, &value, 1);
454 US_DEBUGP("In %s,set 0xfe47 to 0x%x\n", __func__, value);
456 retval = rts51x_write_mem(us, 0xFE47, &value, 1);
463 static int config_autodelink_after_power_on(struct us_data *us)
465 struct rts51x_chip *chip = (struct rts51x_chip *)(us->extra);
469 US_DEBUGP("%s: <---\n", __func__);
471 if (!CHK_AUTO_DELINK(chip))
474 retval = rts51x_read_mem(us, 0xFE47, &value, 1);
478 if (auto_delink_en) {
483 if (CHECK_ID(chip, 0x0138, 0x3882))
488 retval = rts51x_write_mem(us, 0xFE47, &value, 1);
492 retval = enable_oscillator(us);
494 (void)do_config_autodelink(us, 1, 0);
496 /* Autodelink controlled by firmware */
500 if (CHECK_ID(chip, 0x0138, 0x3882))
503 if (CHECK_ID(chip, 0x0159, 0x5889) ||
504 CHECK_ID(chip, 0x0138, 0x3880)) {
509 retval = rts51x_write_mem(us, 0xFE47, &value, 1);
513 if (CHECK_ID(chip, 0x0159, 0x5888)) {
515 retval = rts51x_write_mem(us, 0xFE79, &value, 1);
520 retval = rts51x_write_mem(us, 0x48, &value, 1);
526 US_DEBUGP("%s: --->\n", __func__);
531 static int config_autodelink_before_power_down(struct us_data *us)
533 struct rts51x_chip *chip = (struct rts51x_chip *)(us->extra);
537 US_DEBUGP("%s: <---\n", __func__);
539 if (!CHK_AUTO_DELINK(chip))
542 if (auto_delink_en) {
543 retval = rts51x_read_mem(us, 0xFE77, &value, 1);
548 retval = rts51x_write_mem(us, 0xFE77, &value, 1);
552 if (CHECK_ID(chip, 0x0159, 0x5888)) {
554 retval = rts51x_write_mem(us, 0x48, &value, 1);
559 retval = rts51x_read_mem(us, 0xFE47, &value, 1);
564 if (CHECK_ID(chip, 0x0138, 0x3882))
566 retval = rts51x_write_mem(us, 0xFE77, &value, 1);
570 if (CHECK_ID(chip, 0x0159, 0x5889) ||
571 CHECK_ID(chip, 0x0138, 0x3880) ||
572 CHECK_ID(chip, 0x0138, 0x3882)) {
573 retval = rts51x_read_mem(us, 0xFE47, &value, 1);
577 if (CHECK_ID(chip, 0x0159, 0x5889) ||
578 CHECK_ID(chip, 0x0138, 0x3880)) {
583 if (CHECK_ID(chip, 0x0138, 0x3882))
586 retval = rts51x_write_mem(us, 0xFE47, &value, 1);
591 if (CHECK_ID(chip, 0x0159, 0x5888)) {
593 retval = rts51x_write_mem(us, 0x48, &value, 1);
599 US_DEBUGP("%s: --->\n", __func__);
604 static void fw5895_init(struct us_data *us)
606 struct rts51x_chip *chip = (struct rts51x_chip *)(us->extra);
610 US_DEBUGP("%s: <---\n", __func__);
612 if ((PRODUCT_ID(chip) != 0x0158) || (FW_VERSION(chip) != 0x5895)) {
613 US_DEBUGP("Not the specified device, return immediately!\n");
615 retval = rts51x_read_mem(us, 0xFD6F, &val, 1);
616 if (retval == STATUS_SUCCESS && (val & 0x1F) == 0) {
618 retval = rts51x_write_mem(us, 0xFD70, &val, 1);
619 if (retval != STATUS_SUCCESS)
620 US_DEBUGP("Write memory fail\n");
622 US_DEBUGP("Read memory fail, OR (val & 0x1F) != 0\n");
626 US_DEBUGP("%s: --->\n", __func__);
629 #ifdef CONFIG_REALTEK_AUTOPM
630 static void fw5895_set_mmc_wp(struct us_data *us)
632 struct rts51x_chip *chip = (struct rts51x_chip *)(us->extra);
636 US_DEBUGP("%s: <---\n", __func__);
638 if ((PRODUCT_ID(chip) != 0x0158) || (FW_VERSION(chip) != 0x5895)) {
639 US_DEBUGP("Not the specified device, return immediately!\n");
641 retval = rts51x_read_mem(us, 0xFD6F, buf, 1);
642 if (retval == STATUS_SUCCESS && (buf[0] & 0x24) == 0x24) {
643 /* SD Exist and SD WP */
644 retval = rts51x_read_mem(us, 0xD04E, buf, 1);
645 if (retval == STATUS_SUCCESS) {
647 retval = rts51x_write_mem(us, 0xFD70, buf, 1);
648 if (retval != STATUS_SUCCESS)
649 US_DEBUGP("Write memory fail\n");
651 US_DEBUGP("Read memory fail\n");
654 US_DEBUGP("Read memory fail, OR (buf[0]&0x24)!=0x24\n");
658 US_DEBUGP("%s: --->\n", __func__);
661 static void rts51x_modi_suspend_timer(struct rts51x_chip *chip)
663 US_DEBUGP("%s: <---, state:%d\n", __func__, rts51x_get_stat(chip));
665 chip->timer_expires = jiffies + msecs_to_jiffies(1000*ss_delay);
666 mod_timer(&chip->rts51x_suspend_timer, chip->timer_expires);
668 US_DEBUGP("%s: --->\n", __func__);
671 static void rts51x_suspend_timer_fn(unsigned long data)
673 struct rts51x_chip *chip = (struct rts51x_chip *)data;
674 struct us_data *us = chip->us;
676 US_DEBUGP("%s: <---\n", __func__);
678 switch (rts51x_get_stat(chip)) {
679 case RTS51X_STAT_INIT:
680 case RTS51X_STAT_RUN:
681 rts51x_modi_suspend_timer(chip);
683 case RTS51X_STAT_IDLE:
685 US_DEBUGP("%s: RTS51X_STAT_SS, intf->pm_usage_cnt:%d,"
686 "power.usage:%d\n", __func__,
687 atomic_read(&us->pusb_intf->pm_usage_cnt),
688 atomic_read(&us->pusb_intf->dev.power.usage_count));
690 if (atomic_read(&us->pusb_intf->pm_usage_cnt) > 0) {
691 US_DEBUGP("%s: Ready to enter SS state.\n",
693 rts51x_set_stat(chip, RTS51X_STAT_SS);
694 /* ignore mass storage interface's children */
695 pm_suspend_ignore_children(&us->pusb_intf->dev, true);
696 usb_autopm_put_interface(us->pusb_intf);
697 US_DEBUGP("%s: RTS51X_STAT_SS 01,"
698 "intf->pm_usage_cnt:%d, power.usage:%d\n",
700 atomic_read(&us->pusb_intf->pm_usage_cnt),
702 &us->pusb_intf->dev.power.usage_count));
706 US_DEBUGP("%s: Unknonwn state !!!\n", __func__);
710 US_DEBUGP("%s: --->\n", __func__);
713 static inline int working_scsi(struct scsi_cmnd *srb)
715 if ((srb->cmnd[0] == TEST_UNIT_READY) ||
716 (srb->cmnd[0] == ALLOW_MEDIUM_REMOVAL)) {
723 void rts51x_invoke_transport(struct scsi_cmnd *srb, struct us_data *us)
725 struct rts51x_chip *chip = (struct rts51x_chip *)(us->extra);
726 static int card_first_show = 1;
727 static u8 media_not_present[] = { 0x70, 0, 0x02, 0, 0, 0, 0,
728 10, 0, 0, 0, 0, 0x3A, 0, 0, 0, 0, 0
730 static u8 invalid_cmd_field[] = { 0x70, 0, 0x05, 0, 0, 0, 0,
731 10, 0, 0, 0, 0, 0x24, 0, 0, 0, 0, 0
735 US_DEBUGP("%s: <---\n", __func__);
737 if (working_scsi(srb)) {
738 US_DEBUGP("%s: working scsi, intf->pm_usage_cnt:%d,"
739 "power.usage:%d\n", __func__,
740 atomic_read(&us->pusb_intf->pm_usage_cnt),
741 atomic_read(&us->pusb_intf->dev.power.usage_count));
743 if (atomic_read(&us->pusb_intf->pm_usage_cnt) <= 0) {
744 ret = usb_autopm_get_interface(us->pusb_intf);
745 US_DEBUGP("%s: working scsi, ret=%d\n", __func__, ret);
747 if (rts51x_get_stat(chip) != RTS51X_STAT_RUN)
748 rts51x_set_stat(chip, RTS51X_STAT_RUN);
749 chip->proto_handler_backup(srb, us);
751 if (rts51x_get_stat(chip) == RTS51X_STAT_SS) {
752 US_DEBUGP("%s: NOT working scsi\n", __func__);
753 if ((srb->cmnd[0] == TEST_UNIT_READY) &&
754 (chip->pwr_state == US_SUSPEND)) {
755 if (TST_LUN_READY(chip, srb->device->lun)) {
756 srb->result = SAM_STAT_GOOD;
758 srb->result = SAM_STAT_CHECK_CONDITION;
759 memcpy(srb->sense_buffer,
763 US_DEBUGP("%s: TEST_UNIT_READY--->\n",
767 if (srb->cmnd[0] == ALLOW_MEDIUM_REMOVAL) {
768 int prevent = srb->cmnd[4] & 0x1;
770 srb->result = SAM_STAT_CHECK_CONDITION;
771 memcpy(srb->sense_buffer,
775 srb->result = SAM_STAT_GOOD;
777 US_DEBUGP("%s: ALLOW_MEDIUM_REMOVAL--->\n",
782 US_DEBUGP("%s: NOT working scsi, not SS\n", __func__);
783 chip->proto_handler_backup(srb, us);
784 /* Check wether card is plugged in */
785 if (srb->cmnd[0] == TEST_UNIT_READY) {
786 if (srb->result == SAM_STAT_GOOD) {
787 SET_LUN_READY(chip, srb->device->lun);
788 if (card_first_show) {
790 fw5895_set_mmc_wp(us);
793 CLR_LUN_READY(chip, srb->device->lun);
797 if (rts51x_get_stat(chip) != RTS51X_STAT_IDLE)
798 rts51x_set_stat(chip, RTS51X_STAT_IDLE);
802 US_DEBUGP("%s: state:%d\n", __func__, rts51x_get_stat(chip));
803 if (rts51x_get_stat(chip) == RTS51X_STAT_RUN)
804 rts51x_modi_suspend_timer(chip);
806 US_DEBUGP("%s: --->\n", __func__);
809 static int realtek_cr_autosuspend_setup(struct us_data *us)
811 struct rts51x_chip *chip;
812 struct rts51x_status *status = NULL;
816 chip = (struct rts51x_chip *)us->extra;
817 chip->support_auto_delink = 0;
818 chip->pwr_state = US_RESUME;
820 rts51x_set_stat(chip, RTS51X_STAT_INIT);
822 retval = rts51x_read_status(us, 0, buf, 16, &(chip->status_len));
823 if (retval != STATUS_SUCCESS) {
824 US_DEBUGP("Read status fail\n");
827 status = chip->status;
828 status->vid = ((u16) buf[0] << 8) | buf[1];
829 status->pid = ((u16) buf[2] << 8) | buf[3];
830 status->cur_lun = buf[4];
831 status->card_type = buf[5];
832 status->total_lun = buf[6];
833 status->fw_ver = ((u16) buf[7] << 8) | buf[8];
834 status->phy_exist = buf[9];
835 status->multi_flag = buf[10];
836 status->multi_card = buf[11];
837 status->log_exist = buf[12];
838 if (chip->status_len == 16) {
839 status->detailed_type.detailed_type1 = buf[13];
840 status->function[0] = buf[14];
841 status->function[1] = buf[15];
844 /* back up the proto_handler in us->extra */
845 chip = (struct rts51x_chip *)(us->extra);
846 chip->proto_handler_backup = us->proto_handler;
847 /* Set the autosuspend_delay to 0 */
848 pm_runtime_set_autosuspend_delay(&us->pusb_dev->dev, 0);
849 /* override us->proto_handler setted in get_protocol() */
850 us->proto_handler = rts51x_invoke_transport;
852 chip->timer_expires = 0;
853 setup_timer(&chip->rts51x_suspend_timer, rts51x_suspend_timer_fn,
854 (unsigned long)chip);
857 /* enable autosuspend funciton of the usb device */
858 usb_enable_autosuspend(us->pusb_dev);
864 static void realtek_cr_destructor(void *extra)
866 struct rts51x_chip *chip = (struct rts51x_chip *)extra;
868 US_DEBUGP("%s: <---\n", __func__);
872 #ifdef CONFIG_REALTEK_AUTOPM
874 del_timer(&chip->rts51x_suspend_timer);
875 chip->timer_expires = 0;
882 int realtek_cr_suspend(struct usb_interface *iface, pm_message_t message)
884 struct us_data *us = usb_get_intfdata(iface);
886 US_DEBUGP("%s: <---\n", __func__);
888 /* wait until no command is running */
889 mutex_lock(&us->dev_mutex);
891 config_autodelink_before_power_down(us);
893 mutex_unlock(&us->dev_mutex);
895 US_DEBUGP("%s: --->\n", __func__);
900 static int realtek_cr_resume(struct usb_interface *iface)
902 struct us_data *us = usb_get_intfdata(iface);
904 US_DEBUGP("%s: <---\n", __func__);
907 config_autodelink_after_power_on(us);
909 US_DEBUGP("%s: --->\n", __func__);
914 #define realtek_cr_suspend NULL
915 #define realtek_cr_resume NULL
918 static int init_realtek_cr(struct us_data *us)
920 struct rts51x_chip *chip;
923 chip = kzalloc(sizeof(struct rts51x_chip), GFP_KERNEL);
928 us->extra_destructor = realtek_cr_destructor;
929 us->max_lun = chip->max_lun = rts51x_get_max_lun(us);
931 US_DEBUGP("chip->max_lun = %d\n", chip->max_lun);
933 size = (chip->max_lun + 1) * sizeof(struct rts51x_status);
934 chip->status = kzalloc(size, GFP_KERNEL);
938 for (i = 0; i <= (int)(chip->max_lun); i++) {
939 retval = rts51x_check_status(us, (u8) i);
944 if (CHECK_FW_VER(chip, 0x5888) || CHECK_FW_VER(chip, 0x5889) ||
945 CHECK_FW_VER(chip, 0x5901))
946 SET_AUTO_DELINK(chip);
947 if (STATUS_LEN(chip) == 16) {
948 if (SUPPORT_AUTO_DELINK(chip))
949 SET_AUTO_DELINK(chip);
951 #ifdef CONFIG_REALTEK_AUTOPM
954 realtek_cr_autosuspend_setup(us);
958 US_DEBUGP("chip->flag = 0x%x\n", chip->flag);
960 (void)config_autodelink_after_power_on(us);
974 static int realtek_cr_probe(struct usb_interface *intf,
975 const struct usb_device_id *id)
980 US_DEBUGP("Probe Realtek Card Reader!\n");
982 result = usb_stor_probe1(&us, intf, id,
983 (id - realtek_cr_ids) +
984 realtek_cr_unusual_dev_list);
988 result = usb_stor_probe2(us);
993 static struct usb_driver realtek_cr_driver = {
994 .name = "ums-realtek",
995 .probe = realtek_cr_probe,
996 .disconnect = usb_stor_disconnect,
997 /* .suspend = usb_stor_suspend, */
998 /* .resume = usb_stor_resume, */
999 .reset_resume = usb_stor_reset_resume,
1000 .suspend = realtek_cr_suspend,
1001 .resume = realtek_cr_resume,
1002 .pre_reset = usb_stor_pre_reset,
1003 .post_reset = usb_stor_post_reset,
1004 .id_table = realtek_cr_ids,
1006 .supports_autosuspend = 1,
1009 static int __init realtek_cr_init(void)
1011 return usb_register(&realtek_cr_driver);
1014 static void __exit realtek_cr_exit(void)
1016 usb_deregister(&realtek_cr_driver);
1019 module_init(realtek_cr_init);
1020 module_exit(realtek_cr_exit);