2 * Sony MemoryStick Pro storage support
4 * Copyright (C) 2007 Alex Dubov <oakad@yahoo.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
10 * Special thanks to Carlos Corbacho for providing various MemoryStick cards
11 * that made this driver possible.
15 #include <linux/blkdev.h>
16 #include <linux/idr.h>
17 #include <linux/hdreg.h>
18 #include <linux/kthread.h>
19 #include <linux/delay.h>
20 #include <linux/slab.h>
21 #include <linux/mutex.h>
22 #include <linux/memstick.h>
24 #define DRIVER_NAME "mspro_block"
27 module_param(major, int, 0644);
29 #define MSPRO_BLOCK_MAX_SEGS 32
30 #define MSPRO_BLOCK_MAX_PAGES ((2 << 16) - 1)
32 #define MSPRO_BLOCK_SIGNATURE 0xa5c3
33 #define MSPRO_BLOCK_MAX_ATTRIBUTES 41
35 #define MSPRO_BLOCK_PART_SHIFT 3
38 MSPRO_BLOCK_ID_SYSINFO = 0x10,
39 MSPRO_BLOCK_ID_MODELNAME = 0x15,
40 MSPRO_BLOCK_ID_MBR = 0x20,
41 MSPRO_BLOCK_ID_PBR16 = 0x21,
42 MSPRO_BLOCK_ID_PBR32 = 0x22,
43 MSPRO_BLOCK_ID_SPECFILEVALUES1 = 0x25,
44 MSPRO_BLOCK_ID_SPECFILEVALUES2 = 0x26,
45 MSPRO_BLOCK_ID_DEVINFO = 0x30
48 struct mspro_sys_attr {
53 struct device_attribute dev_attr;
56 struct mspro_attr_entry {
60 unsigned char reserved[3];
61 } __attribute__((packed));
63 struct mspro_attribute {
65 unsigned short version;
67 unsigned char reserved[11];
68 struct mspro_attr_entry entries[];
69 } __attribute__((packed));
71 struct mspro_sys_info {
73 unsigned char reserved0;
76 __be16 user_block_count;
78 unsigned char reserved1[2];
79 unsigned char assembly_date[8];
81 unsigned char assembly_maker_code;
82 unsigned char assembly_model_code[3];
83 __be16 memory_maker_code;
84 __be16 memory_model_code;
85 unsigned char reserved2[4];
88 __be16 controller_number;
89 __be16 controller_function;
92 unsigned char ms_sub_class;
93 unsigned char reserved3[4];
94 unsigned char interface_type;
95 __be16 controller_code;
96 unsigned char format_type;
97 unsigned char reserved4;
98 unsigned char device_type;
99 unsigned char reserved5[7];
100 unsigned char mspro_id[16];
101 unsigned char reserved6[16];
102 } __attribute__((packed));
105 unsigned char boot_partition;
106 unsigned char start_head;
107 unsigned char start_sector;
108 unsigned char start_cylinder;
109 unsigned char partition_type;
110 unsigned char end_head;
111 unsigned char end_sector;
112 unsigned char end_cylinder;
113 unsigned int start_sectors;
114 unsigned int sectors_per_partition;
115 } __attribute__((packed));
117 struct mspro_specfile {
121 unsigned char reserved[10];
124 unsigned short cluster;
126 } __attribute__((packed));
128 struct mspro_devinfo {
131 __be16 bytes_per_track;
132 __be16 bytes_per_sector;
133 __be16 sectors_per_track;
134 unsigned char reserved[6];
135 } __attribute__((packed));
137 struct mspro_block_data {
138 struct memstick_dev *card;
139 unsigned int usage_count;
141 struct gendisk *disk;
142 struct request_queue *queue;
143 struct request *block_req;
146 unsigned short page_size;
147 unsigned short cylinders;
148 unsigned short heads;
149 unsigned short sectors_per_track;
151 unsigned char system;
152 unsigned char read_only:1,
157 unsigned char transfer_cmd;
159 int (*mrq_handler)(struct memstick_dev *card,
160 struct memstick_request **mrq);
162 struct attribute_group attr_group;
164 struct scatterlist req_sg[MSPRO_BLOCK_MAX_SEGS];
165 unsigned int seg_count;
166 unsigned int current_seg;
167 unsigned int current_page;
170 static DEFINE_IDR(mspro_block_disk_idr);
171 static DEFINE_MUTEX(mspro_block_disk_lock);
173 static int mspro_block_complete_req(struct memstick_dev *card, int error);
175 /*** Block device ***/
177 static int mspro_block_bd_open(struct block_device *bdev, fmode_t mode)
179 struct gendisk *disk = bdev->bd_disk;
180 struct mspro_block_data *msb = disk->private_data;
183 mutex_lock(&mspro_block_disk_lock);
185 if (msb && msb->card) {
187 if ((mode & FMODE_WRITE) && msb->read_only)
193 mutex_unlock(&mspro_block_disk_lock);
199 static int mspro_block_disk_release(struct gendisk *disk)
201 struct mspro_block_data *msb = disk->private_data;
202 int disk_id = MINOR(disk_devt(disk)) >> MSPRO_BLOCK_PART_SHIFT;
204 mutex_lock(&mspro_block_disk_lock);
207 if (msb->usage_count)
210 if (!msb->usage_count) {
212 disk->private_data = NULL;
213 idr_remove(&mspro_block_disk_idr, disk_id);
218 mutex_unlock(&mspro_block_disk_lock);
223 static int mspro_block_bd_release(struct gendisk *disk, fmode_t mode)
225 return mspro_block_disk_release(disk);
228 static int mspro_block_bd_getgeo(struct block_device *bdev,
229 struct hd_geometry *geo)
231 struct mspro_block_data *msb = bdev->bd_disk->private_data;
233 geo->heads = msb->heads;
234 geo->sectors = msb->sectors_per_track;
235 geo->cylinders = msb->cylinders;
240 static const struct block_device_operations ms_block_bdops = {
241 .open = mspro_block_bd_open,
242 .release = mspro_block_bd_release,
243 .getgeo = mspro_block_bd_getgeo,
247 /*** Information ***/
249 static struct mspro_sys_attr *mspro_from_sysfs_attr(struct attribute *attr)
251 struct device_attribute *dev_attr
252 = container_of(attr, struct device_attribute, attr);
253 return container_of(dev_attr, struct mspro_sys_attr, dev_attr);
256 static const char *mspro_block_attr_name(unsigned char tag)
259 case MSPRO_BLOCK_ID_SYSINFO:
260 return "attr_sysinfo";
261 case MSPRO_BLOCK_ID_MODELNAME:
262 return "attr_modelname";
263 case MSPRO_BLOCK_ID_MBR:
265 case MSPRO_BLOCK_ID_PBR16:
267 case MSPRO_BLOCK_ID_PBR32:
269 case MSPRO_BLOCK_ID_SPECFILEVALUES1:
270 return "attr_specfilevalues1";
271 case MSPRO_BLOCK_ID_SPECFILEVALUES2:
272 return "attr_specfilevalues2";
273 case MSPRO_BLOCK_ID_DEVINFO:
274 return "attr_devinfo";
280 typedef ssize_t (*sysfs_show_t)(struct device *dev,
281 struct device_attribute *attr,
284 static ssize_t mspro_block_attr_show_default(struct device *dev,
285 struct device_attribute *attr,
288 struct mspro_sys_attr *s_attr = container_of(attr,
289 struct mspro_sys_attr,
294 for (cnt = 0; cnt < s_attr->size; cnt++) {
295 if (cnt && !(cnt % 16)) {
300 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "%02x ",
301 ((unsigned char *)s_attr->data)[cnt]);
306 static ssize_t mspro_block_attr_show_sysinfo(struct device *dev,
307 struct device_attribute *attr,
310 struct mspro_sys_attr *x_attr = container_of(attr,
311 struct mspro_sys_attr,
313 struct mspro_sys_info *x_sys = x_attr->data;
315 int date_tz = 0, date_tz_f = 0;
317 if (x_sys->assembly_date[0] > 0x80U) {
318 date_tz = (~x_sys->assembly_date[0]) + 1;
319 date_tz_f = date_tz & 3;
323 } else if (x_sys->assembly_date[0] < 0x80U) {
324 date_tz = x_sys->assembly_date[0];
325 date_tz_f = date_tz & 3;
330 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "class: %x\n",
332 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "block size: %x\n",
333 be16_to_cpu(x_sys->block_size));
334 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "block count: %x\n",
335 be16_to_cpu(x_sys->block_count));
336 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "user block count: %x\n",
337 be16_to_cpu(x_sys->user_block_count));
338 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "page size: %x\n",
339 be16_to_cpu(x_sys->page_size));
340 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "assembly date: "
341 "GMT%+d:%d %04u-%02u-%02u %02u:%02u:%02u\n",
343 be16_to_cpup((__be16 *)&x_sys->assembly_date[1]),
344 x_sys->assembly_date[3], x_sys->assembly_date[4],
345 x_sys->assembly_date[5], x_sys->assembly_date[6],
346 x_sys->assembly_date[7]);
347 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "serial number: %x\n",
348 be32_to_cpu(x_sys->serial_number));
349 rc += scnprintf(buffer + rc, PAGE_SIZE - rc,
350 "assembly maker code: %x\n",
351 x_sys->assembly_maker_code);
352 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "assembly model code: "
353 "%02x%02x%02x\n", x_sys->assembly_model_code[0],
354 x_sys->assembly_model_code[1],
355 x_sys->assembly_model_code[2]);
356 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "memory maker code: %x\n",
357 be16_to_cpu(x_sys->memory_maker_code));
358 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "memory model code: %x\n",
359 be16_to_cpu(x_sys->memory_model_code));
360 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "vcc: %x\n",
362 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "vpp: %x\n",
364 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "controller number: %x\n",
365 be16_to_cpu(x_sys->controller_number));
366 rc += scnprintf(buffer + rc, PAGE_SIZE - rc,
367 "controller function: %x\n",
368 be16_to_cpu(x_sys->controller_function));
369 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sector: %x\n",
370 be16_to_cpu(x_sys->start_sector));
371 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "unit size: %x\n",
372 be16_to_cpu(x_sys->unit_size));
373 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "sub class: %x\n",
374 x_sys->ms_sub_class);
375 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "interface type: %x\n",
376 x_sys->interface_type);
377 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "controller code: %x\n",
378 be16_to_cpu(x_sys->controller_code));
379 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "format type: %x\n",
381 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "device type: %x\n",
383 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "mspro id: %s\n",
388 static ssize_t mspro_block_attr_show_modelname(struct device *dev,
389 struct device_attribute *attr,
392 struct mspro_sys_attr *s_attr = container_of(attr,
393 struct mspro_sys_attr,
396 return scnprintf(buffer, PAGE_SIZE, "%s", (char *)s_attr->data);
399 static ssize_t mspro_block_attr_show_mbr(struct device *dev,
400 struct device_attribute *attr,
403 struct mspro_sys_attr *x_attr = container_of(attr,
404 struct mspro_sys_attr,
406 struct mspro_mbr *x_mbr = x_attr->data;
409 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "boot partition: %x\n",
410 x_mbr->boot_partition);
411 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start head: %x\n",
413 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sector: %x\n",
414 x_mbr->start_sector);
415 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start cylinder: %x\n",
416 x_mbr->start_cylinder);
417 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "partition type: %x\n",
418 x_mbr->partition_type);
419 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end head: %x\n",
421 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end sector: %x\n",
423 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end cylinder: %x\n",
424 x_mbr->end_cylinder);
425 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sectors: %x\n",
426 x_mbr->start_sectors);
427 rc += scnprintf(buffer + rc, PAGE_SIZE - rc,
428 "sectors per partition: %x\n",
429 x_mbr->sectors_per_partition);
433 static ssize_t mspro_block_attr_show_specfile(struct device *dev,
434 struct device_attribute *attr,
437 struct mspro_sys_attr *x_attr = container_of(attr,
438 struct mspro_sys_attr,
440 struct mspro_specfile *x_spfile = x_attr->data;
441 char name[9], ext[4];
444 memcpy(name, x_spfile->name, 8);
446 memcpy(ext, x_spfile->ext, 3);
449 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "name: %s\n", name);
450 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "ext: %s\n", ext);
451 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "attribute: %x\n",
453 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "time: %d:%d:%d\n",
454 x_spfile->time >> 11,
455 (x_spfile->time >> 5) & 0x3f,
456 (x_spfile->time & 0x1f) * 2);
457 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "date: %d-%d-%d\n",
458 (x_spfile->date >> 9) + 1980,
459 (x_spfile->date >> 5) & 0xf,
460 x_spfile->date & 0x1f);
461 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start cluster: %x\n",
463 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "size: %x\n",
468 static ssize_t mspro_block_attr_show_devinfo(struct device *dev,
469 struct device_attribute *attr,
472 struct mspro_sys_attr *x_attr = container_of(attr,
473 struct mspro_sys_attr,
475 struct mspro_devinfo *x_devinfo = x_attr->data;
478 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "cylinders: %x\n",
479 be16_to_cpu(x_devinfo->cylinders));
480 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "heads: %x\n",
481 be16_to_cpu(x_devinfo->heads));
482 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "bytes per track: %x\n",
483 be16_to_cpu(x_devinfo->bytes_per_track));
484 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "bytes per sector: %x\n",
485 be16_to_cpu(x_devinfo->bytes_per_sector));
486 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "sectors per track: %x\n",
487 be16_to_cpu(x_devinfo->sectors_per_track));
491 static sysfs_show_t mspro_block_attr_show(unsigned char tag)
494 case MSPRO_BLOCK_ID_SYSINFO:
495 return mspro_block_attr_show_sysinfo;
496 case MSPRO_BLOCK_ID_MODELNAME:
497 return mspro_block_attr_show_modelname;
498 case MSPRO_BLOCK_ID_MBR:
499 return mspro_block_attr_show_mbr;
500 case MSPRO_BLOCK_ID_SPECFILEVALUES1:
501 case MSPRO_BLOCK_ID_SPECFILEVALUES2:
502 return mspro_block_attr_show_specfile;
503 case MSPRO_BLOCK_ID_DEVINFO:
504 return mspro_block_attr_show_devinfo;
506 return mspro_block_attr_show_default;
510 /*** Protocol handlers ***/
513 * Functions prefixed with "h_" are protocol callbacks. They can be called from
514 * interrupt context. Return value of 0 means that request processing is still
515 * ongoing, while special error value of -EAGAIN means that current request is
516 * finished (and request processor should come back some time later).
519 static int h_mspro_block_req_init(struct memstick_dev *card,
520 struct memstick_request **mrq)
522 struct mspro_block_data *msb = memstick_get_drvdata(card);
524 *mrq = &card->current_mrq;
525 card->next_request = msb->mrq_handler;
529 static int h_mspro_block_default(struct memstick_dev *card,
530 struct memstick_request **mrq)
532 return mspro_block_complete_req(card, (*mrq)->error);
535 static int h_mspro_block_default_bad(struct memstick_dev *card,
536 struct memstick_request **mrq)
541 static int h_mspro_block_get_ro(struct memstick_dev *card,
542 struct memstick_request **mrq)
544 struct mspro_block_data *msb = memstick_get_drvdata(card);
546 if (!(*mrq)->error) {
547 if ((*mrq)->data[offsetof(struct ms_status_register, status0)]
548 & MEMSTICK_STATUS0_WP)
554 return mspro_block_complete_req(card, (*mrq)->error);
557 static int h_mspro_block_wait_for_ced(struct memstick_dev *card,
558 struct memstick_request **mrq)
560 dev_dbg(&card->dev, "wait for ced: value %x\n", (*mrq)->data[0]);
562 if (!(*mrq)->error) {
563 if ((*mrq)->data[0] & (MEMSTICK_INT_CMDNAK | MEMSTICK_INT_ERR))
564 (*mrq)->error = -EFAULT;
565 else if (!((*mrq)->data[0] & MEMSTICK_INT_CED))
569 return mspro_block_complete_req(card, (*mrq)->error);
572 static int h_mspro_block_transfer_data(struct memstick_dev *card,
573 struct memstick_request **mrq)
575 struct mspro_block_data *msb = memstick_get_drvdata(card);
576 unsigned char t_val = 0;
577 struct scatterlist t_sg = { 0 };
581 return mspro_block_complete_req(card, (*mrq)->error);
583 switch ((*mrq)->tpc) {
584 case MS_TPC_WRITE_REG:
585 memstick_init_req(*mrq, MS_TPC_SET_CMD, &msb->transfer_cmd, 1);
586 (*mrq)->need_card_int = 1;
589 t_val = (*mrq)->int_reg;
590 memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1);
591 if (msb->caps & MEMSTICK_CAP_AUTO_GET_INT)
595 t_val = (*mrq)->data[0];
597 if (t_val & (MEMSTICK_INT_CMDNAK | MEMSTICK_INT_ERR)) {
598 t_val = MSPRO_CMD_STOP;
599 memstick_init_req(*mrq, MS_TPC_SET_CMD, &t_val, 1);
600 card->next_request = h_mspro_block_default;
604 if (msb->current_page
605 == (msb->req_sg[msb->current_seg].length
607 msb->current_page = 0;
610 if (msb->current_seg == msb->seg_count) {
611 if (t_val & MEMSTICK_INT_CED) {
612 return mspro_block_complete_req(card,
616 = h_mspro_block_wait_for_ced;
617 memstick_init_req(*mrq, MS_TPC_GET_INT,
624 if (!(t_val & MEMSTICK_INT_BREQ)) {
625 memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1);
629 t_offset = msb->req_sg[msb->current_seg].offset;
630 t_offset += msb->current_page * msb->page_size;
633 nth_page(sg_page(&(msb->req_sg[msb->current_seg])),
634 t_offset >> PAGE_SHIFT),
635 msb->page_size, offset_in_page(t_offset));
637 memstick_init_req_sg(*mrq, msb->data_dir == READ
638 ? MS_TPC_READ_LONG_DATA
639 : MS_TPC_WRITE_LONG_DATA,
641 (*mrq)->need_card_int = 1;
643 case MS_TPC_READ_LONG_DATA:
644 case MS_TPC_WRITE_LONG_DATA:
646 if (msb->caps & MEMSTICK_CAP_AUTO_GET_INT) {
647 t_val = (*mrq)->int_reg;
650 memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1);
659 /*** Data transfer ***/
661 static int mspro_block_issue_req(struct memstick_dev *card, int chunk)
663 struct mspro_block_data *msb = memstick_get_drvdata(card);
666 struct mspro_param_register param;
670 msb->current_page = 0;
671 msb->current_seg = 0;
672 msb->seg_count = blk_rq_map_sg(msb->block_req->q,
676 if (!msb->seg_count) {
677 chunk = __blk_end_request_cur(msb->block_req, -ENOMEM);
681 t_sec = blk_rq_pos(msb->block_req) << 9;
682 sector_div(t_sec, msb->page_size);
684 count = blk_rq_bytes(msb->block_req);
685 count /= msb->page_size;
687 param.system = msb->system;
688 param.data_count = cpu_to_be16(count);
689 param.data_address = cpu_to_be32((uint32_t)t_sec);
692 msb->data_dir = rq_data_dir(msb->block_req);
693 msb->transfer_cmd = msb->data_dir == READ
694 ? MSPRO_CMD_READ_DATA
695 : MSPRO_CMD_WRITE_DATA;
697 dev_dbg(&card->dev, "data transfer: cmd %x, "
698 "lba %x, count %x\n", msb->transfer_cmd,
699 be32_to_cpu(param.data_address), count);
701 card->next_request = h_mspro_block_req_init;
702 msb->mrq_handler = h_mspro_block_transfer_data;
703 memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG,
704 ¶m, sizeof(param));
705 memstick_new_req(card->host);
709 dev_dbg(&card->dev, "blk_fetch\n");
710 msb->block_req = blk_fetch_request(msb->queue);
711 if (!msb->block_req) {
712 dev_dbg(&card->dev, "issue end\n");
716 dev_dbg(&card->dev, "trying again\n");
721 static int mspro_block_complete_req(struct memstick_dev *card, int error)
723 struct mspro_block_data *msb = memstick_get_drvdata(card);
725 unsigned int t_len = 0;
728 spin_lock_irqsave(&msb->q_lock, flags);
729 dev_dbg(&card->dev, "complete %d, %d\n", msb->has_request ? 1 : 0,
732 if (msb->has_request) {
733 /* Nothing to do - not really an error */
734 if (error == -EAGAIN)
737 if (error || (card->current_mrq.tpc == MSPRO_CMD_STOP)) {
738 if (msb->data_dir == READ) {
739 for (cnt = 0; cnt < msb->current_seg; cnt++)
740 t_len += msb->req_sg[cnt].length
743 if (msb->current_page)
744 t_len += msb->current_page - 1;
746 t_len *= msb->page_size;
749 t_len = blk_rq_bytes(msb->block_req);
751 dev_dbg(&card->dev, "transferred %x (%d)\n", t_len, error);
754 t_len = blk_rq_cur_bytes(msb->block_req);
756 chunk = __blk_end_request(msb->block_req, error, t_len);
758 error = mspro_block_issue_req(card, chunk);
763 msb->has_request = 0;
769 card->next_request = h_mspro_block_default_bad;
770 complete_all(&card->mrq_complete);
772 spin_unlock_irqrestore(&msb->q_lock, flags);
776 static void mspro_block_stop(struct memstick_dev *card)
778 struct mspro_block_data *msb = memstick_get_drvdata(card);
783 spin_lock_irqsave(&msb->q_lock, flags);
784 if (!msb->has_request) {
785 blk_stop_queue(msb->queue);
788 spin_unlock_irqrestore(&msb->q_lock, flags);
793 wait_for_completion(&card->mrq_complete);
797 static void mspro_block_start(struct memstick_dev *card)
799 struct mspro_block_data *msb = memstick_get_drvdata(card);
802 spin_lock_irqsave(&msb->q_lock, flags);
803 blk_start_queue(msb->queue);
804 spin_unlock_irqrestore(&msb->q_lock, flags);
807 static int mspro_block_prepare_req(struct request_queue *q, struct request *req)
809 if (req->cmd_type != REQ_TYPE_FS &&
810 req->cmd_type != REQ_TYPE_BLOCK_PC) {
811 blk_dump_rq_flags(req, "MSPro unsupported request");
815 req->cmd_flags |= REQ_DONTPREP;
820 static void mspro_block_submit_req(struct request_queue *q)
822 struct memstick_dev *card = q->queuedata;
823 struct mspro_block_data *msb = memstick_get_drvdata(card);
824 struct request *req = NULL;
826 if (msb->has_request)
830 while ((req = blk_fetch_request(q)) != NULL)
831 __blk_end_request_all(req, -ENODEV);
836 msb->has_request = 1;
837 if (mspro_block_issue_req(card, 0))
838 msb->has_request = 0;
841 /*** Initialization ***/
843 static int mspro_block_wait_for_ced(struct memstick_dev *card)
845 struct mspro_block_data *msb = memstick_get_drvdata(card);
847 card->next_request = h_mspro_block_req_init;
848 msb->mrq_handler = h_mspro_block_wait_for_ced;
849 memstick_init_req(&card->current_mrq, MS_TPC_GET_INT, NULL, 1);
850 memstick_new_req(card->host);
851 wait_for_completion(&card->mrq_complete);
852 return card->current_mrq.error;
855 static int mspro_block_set_interface(struct memstick_dev *card,
856 unsigned char sys_reg)
858 struct memstick_host *host = card->host;
859 struct mspro_block_data *msb = memstick_get_drvdata(card);
860 struct mspro_param_register param = {
867 card->next_request = h_mspro_block_req_init;
868 msb->mrq_handler = h_mspro_block_default;
869 memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, ¶m,
871 memstick_new_req(host);
872 wait_for_completion(&card->mrq_complete);
873 return card->current_mrq.error;
876 static int mspro_block_switch_interface(struct memstick_dev *card)
878 struct memstick_host *host = card->host;
879 struct mspro_block_data *msb = memstick_get_drvdata(card);
883 if (msb->caps & MEMSTICK_CAP_PAR4)
884 rc = mspro_block_set_interface(card, MEMSTICK_SYS_PAR4);
890 "%s: could not switch to 4-bit mode, error %d\n",
891 dev_name(&card->dev), rc);
895 msb->system = MEMSTICK_SYS_PAR4;
896 host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_PAR4);
897 printk(KERN_INFO "%s: switching to 4-bit parallel mode\n",
898 dev_name(&card->dev));
900 if (msb->caps & MEMSTICK_CAP_PAR8) {
901 rc = mspro_block_set_interface(card, MEMSTICK_SYS_PAR8);
904 msb->system = MEMSTICK_SYS_PAR8;
905 host->set_param(host, MEMSTICK_INTERFACE,
908 "%s: switching to 8-bit parallel mode\n",
909 dev_name(&card->dev));
912 "%s: could not switch to 8-bit mode, error %d\n",
913 dev_name(&card->dev), rc);
916 card->next_request = h_mspro_block_req_init;
917 msb->mrq_handler = h_mspro_block_default;
918 memstick_init_req(&card->current_mrq, MS_TPC_GET_INT, NULL, 1);
919 memstick_new_req(card->host);
920 wait_for_completion(&card->mrq_complete);
921 rc = card->current_mrq.error;
925 "%s: interface error, trying to fall back to serial\n",
926 dev_name(&card->dev));
927 msb->system = MEMSTICK_SYS_SERIAL;
928 host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_OFF);
930 host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_ON);
931 host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_SERIAL);
933 rc = memstick_set_rw_addr(card);
935 rc = mspro_block_set_interface(card, msb->system);
939 rc = mspro_block_wait_for_ced(card);
943 if (msb->caps & MEMSTICK_CAP_PAR8) {
944 msb->caps &= ~MEMSTICK_CAP_PAR8;
952 /* Memory allocated for attributes by this function should be freed by
953 * mspro_block_data_clear, no matter if the initialization process succeded
956 static int mspro_block_read_attributes(struct memstick_dev *card)
958 struct mspro_block_data *msb = memstick_get_drvdata(card);
959 struct mspro_param_register param = {
960 .system = msb->system,
961 .data_count = cpu_to_be16(1),
965 struct mspro_attribute *attr = NULL;
966 struct mspro_sys_attr *s_attr = NULL;
967 unsigned char *buffer = NULL;
968 int cnt, rc, attr_count;
970 unsigned short page_count;
972 attr = kmalloc(msb->page_size, GFP_KERNEL);
976 sg_init_one(&msb->req_sg[0], attr, msb->page_size);
978 msb->current_seg = 0;
979 msb->current_page = 0;
980 msb->data_dir = READ;
981 msb->transfer_cmd = MSPRO_CMD_READ_ATRB;
983 card->next_request = h_mspro_block_req_init;
984 msb->mrq_handler = h_mspro_block_transfer_data;
985 memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, ¶m,
987 memstick_new_req(card->host);
988 wait_for_completion(&card->mrq_complete);
989 if (card->current_mrq.error) {
990 rc = card->current_mrq.error;
994 if (be16_to_cpu(attr->signature) != MSPRO_BLOCK_SIGNATURE) {
995 printk(KERN_ERR "%s: unrecognized device signature %x\n",
996 dev_name(&card->dev), be16_to_cpu(attr->signature));
1001 if (attr->count > MSPRO_BLOCK_MAX_ATTRIBUTES) {
1002 printk(KERN_WARNING "%s: way too many attribute entries\n",
1003 dev_name(&card->dev));
1004 attr_count = MSPRO_BLOCK_MAX_ATTRIBUTES;
1006 attr_count = attr->count;
1008 msb->attr_group.attrs = kzalloc((attr_count + 1)
1009 * sizeof(struct attribute),
1011 if (!msb->attr_group.attrs) {
1015 msb->attr_group.name = "media_attributes";
1017 buffer = kmalloc(msb->page_size, GFP_KERNEL);
1022 memcpy(buffer, (char *)attr, msb->page_size);
1025 for (cnt = 0; cnt < attr_count; ++cnt) {
1026 s_attr = kzalloc(sizeof(struct mspro_sys_attr), GFP_KERNEL);
1029 goto out_free_buffer;
1032 msb->attr_group.attrs[cnt] = &s_attr->dev_attr.attr;
1033 addr = be32_to_cpu(attr->entries[cnt].address);
1034 rc = be32_to_cpu(attr->entries[cnt].size);
1035 dev_dbg(&card->dev, "adding attribute %d: id %x, address %x, "
1036 "size %x\n", cnt, attr->entries[cnt].id, addr, rc);
1037 s_attr->id = attr->entries[cnt].id;
1038 if (mspro_block_attr_name(s_attr->id))
1039 snprintf(s_attr->name, sizeof(s_attr->name), "%s",
1040 mspro_block_attr_name(attr->entries[cnt].id));
1042 snprintf(s_attr->name, sizeof(s_attr->name),
1043 "attr_x%02x", attr->entries[cnt].id);
1045 sysfs_attr_init(&s_attr->dev_attr.attr);
1046 s_attr->dev_attr.attr.name = s_attr->name;
1047 s_attr->dev_attr.attr.mode = S_IRUGO;
1048 s_attr->dev_attr.show = mspro_block_attr_show(s_attr->id);
1054 s_attr->data = kmalloc(rc, GFP_KERNEL);
1055 if (!s_attr->data) {
1057 goto out_free_buffer;
1060 if (((addr / msb->page_size)
1061 == be32_to_cpu(param.data_address))
1062 && (((addr + rc - 1) / msb->page_size)
1063 == be32_to_cpu(param.data_address))) {
1064 memcpy(s_attr->data, buffer + addr % msb->page_size,
1069 if (page_count <= (rc / msb->page_size)) {
1071 page_count = (rc / msb->page_size) + 1;
1072 buffer = kmalloc(page_count * msb->page_size,
1080 param.system = msb->system;
1081 param.data_count = cpu_to_be16((rc / msb->page_size) + 1);
1082 param.data_address = cpu_to_be32(addr / msb->page_size);
1083 param.tpc_param = 0;
1085 sg_init_one(&msb->req_sg[0], buffer,
1086 be16_to_cpu(param.data_count) * msb->page_size);
1088 msb->current_seg = 0;
1089 msb->current_page = 0;
1090 msb->data_dir = READ;
1091 msb->transfer_cmd = MSPRO_CMD_READ_ATRB;
1093 dev_dbg(&card->dev, "reading attribute pages %x, %x\n",
1094 be32_to_cpu(param.data_address),
1095 be16_to_cpu(param.data_count));
1097 card->next_request = h_mspro_block_req_init;
1098 msb->mrq_handler = h_mspro_block_transfer_data;
1099 memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG,
1100 (char *)¶m, sizeof(param));
1101 memstick_new_req(card->host);
1102 wait_for_completion(&card->mrq_complete);
1103 if (card->current_mrq.error) {
1104 rc = card->current_mrq.error;
1105 goto out_free_buffer;
1108 memcpy(s_attr->data, buffer + addr % msb->page_size, rc);
1119 static int mspro_block_init_card(struct memstick_dev *card)
1121 struct mspro_block_data *msb = memstick_get_drvdata(card);
1122 struct memstick_host *host = card->host;
1125 msb->system = MEMSTICK_SYS_SERIAL;
1126 card->reg_addr.r_offset = offsetof(struct mspro_register, status);
1127 card->reg_addr.r_length = sizeof(struct ms_status_register);
1128 card->reg_addr.w_offset = offsetof(struct mspro_register, param);
1129 card->reg_addr.w_length = sizeof(struct mspro_param_register);
1131 if (memstick_set_rw_addr(card))
1134 msb->caps = host->caps;
1137 rc = mspro_block_wait_for_ced(card);
1141 rc = mspro_block_switch_interface(card);
1145 dev_dbg(&card->dev, "card activated\n");
1146 if (msb->system != MEMSTICK_SYS_SERIAL)
1147 msb->caps |= MEMSTICK_CAP_AUTO_GET_INT;
1149 card->next_request = h_mspro_block_req_init;
1150 msb->mrq_handler = h_mspro_block_get_ro;
1151 memstick_init_req(&card->current_mrq, MS_TPC_READ_REG, NULL,
1152 sizeof(struct ms_status_register));
1153 memstick_new_req(card->host);
1154 wait_for_completion(&card->mrq_complete);
1155 if (card->current_mrq.error)
1156 return card->current_mrq.error;
1158 dev_dbg(&card->dev, "card r/w status %d\n", msb->read_only ? 0 : 1);
1160 msb->page_size = 512;
1161 rc = mspro_block_read_attributes(card);
1165 dev_dbg(&card->dev, "attributes loaded\n");
1170 static int mspro_block_init_disk(struct memstick_dev *card)
1172 struct mspro_block_data *msb = memstick_get_drvdata(card);
1173 struct memstick_host *host = card->host;
1174 struct mspro_devinfo *dev_info = NULL;
1175 struct mspro_sys_info *sys_info = NULL;
1176 struct mspro_sys_attr *s_attr = NULL;
1178 u64 limit = BLK_BOUNCE_HIGH;
1179 unsigned long capacity;
1181 if (host->dev.dma_mask && *(host->dev.dma_mask))
1182 limit = *(host->dev.dma_mask);
1184 for (rc = 0; msb->attr_group.attrs[rc]; ++rc) {
1185 s_attr = mspro_from_sysfs_attr(msb->attr_group.attrs[rc]);
1187 if (s_attr->id == MSPRO_BLOCK_ID_DEVINFO)
1188 dev_info = s_attr->data;
1189 else if (s_attr->id == MSPRO_BLOCK_ID_SYSINFO)
1190 sys_info = s_attr->data;
1193 if (!dev_info || !sys_info)
1196 msb->cylinders = be16_to_cpu(dev_info->cylinders);
1197 msb->heads = be16_to_cpu(dev_info->heads);
1198 msb->sectors_per_track = be16_to_cpu(dev_info->sectors_per_track);
1200 msb->page_size = be16_to_cpu(sys_info->unit_size);
1202 mutex_lock(&mspro_block_disk_lock);
1203 if (!idr_pre_get(&mspro_block_disk_idr, GFP_KERNEL)) {
1204 mutex_unlock(&mspro_block_disk_lock);
1208 rc = idr_get_new(&mspro_block_disk_idr, card, &disk_id);
1209 mutex_unlock(&mspro_block_disk_lock);
1214 if ((disk_id << MSPRO_BLOCK_PART_SHIFT) > 255) {
1216 goto out_release_id;
1219 msb->disk = alloc_disk(1 << MSPRO_BLOCK_PART_SHIFT);
1222 goto out_release_id;
1225 msb->queue = blk_init_queue(mspro_block_submit_req, &msb->q_lock);
1231 msb->queue->queuedata = card;
1232 blk_queue_prep_rq(msb->queue, mspro_block_prepare_req);
1234 blk_queue_bounce_limit(msb->queue, limit);
1235 blk_queue_max_hw_sectors(msb->queue, MSPRO_BLOCK_MAX_PAGES);
1236 blk_queue_max_segments(msb->queue, MSPRO_BLOCK_MAX_SEGS);
1237 blk_queue_max_segment_size(msb->queue,
1238 MSPRO_BLOCK_MAX_PAGES * msb->page_size);
1240 msb->disk->major = major;
1241 msb->disk->first_minor = disk_id << MSPRO_BLOCK_PART_SHIFT;
1242 msb->disk->fops = &ms_block_bdops;
1243 msb->usage_count = 1;
1244 msb->disk->private_data = msb;
1245 msb->disk->queue = msb->queue;
1246 msb->disk->driverfs_dev = &card->dev;
1248 sprintf(msb->disk->disk_name, "mspblk%d", disk_id);
1250 blk_queue_logical_block_size(msb->queue, msb->page_size);
1252 capacity = be16_to_cpu(sys_info->user_block_count);
1253 capacity *= be16_to_cpu(sys_info->block_size);
1254 capacity *= msb->page_size >> 9;
1255 set_capacity(msb->disk, capacity);
1256 dev_dbg(&card->dev, "capacity set %ld\n", capacity);
1258 add_disk(msb->disk);
1263 put_disk(msb->disk);
1265 mutex_lock(&mspro_block_disk_lock);
1266 idr_remove(&mspro_block_disk_idr, disk_id);
1267 mutex_unlock(&mspro_block_disk_lock);
1271 static void mspro_block_data_clear(struct mspro_block_data *msb)
1274 struct mspro_sys_attr *s_attr;
1276 if (msb->attr_group.attrs) {
1277 for (cnt = 0; msb->attr_group.attrs[cnt]; ++cnt) {
1278 s_attr = mspro_from_sysfs_attr(msb->attr_group
1280 kfree(s_attr->data);
1283 kfree(msb->attr_group.attrs);
1289 static int mspro_block_check_card(struct memstick_dev *card)
1291 struct mspro_block_data *msb = memstick_get_drvdata(card);
1293 return (msb->active == 1);
1296 static int mspro_block_probe(struct memstick_dev *card)
1298 struct mspro_block_data *msb;
1301 msb = kzalloc(sizeof(struct mspro_block_data), GFP_KERNEL);
1304 memstick_set_drvdata(card, msb);
1306 spin_lock_init(&msb->q_lock);
1308 rc = mspro_block_init_card(card);
1313 rc = sysfs_create_group(&card->dev.kobj, &msb->attr_group);
1317 rc = mspro_block_init_disk(card);
1319 card->check = mspro_block_check_card;
1320 card->stop = mspro_block_stop;
1321 card->start = mspro_block_start;
1325 sysfs_remove_group(&card->dev.kobj, &msb->attr_group);
1327 memstick_set_drvdata(card, NULL);
1328 mspro_block_data_clear(msb);
1333 static void mspro_block_remove(struct memstick_dev *card)
1335 struct mspro_block_data *msb = memstick_get_drvdata(card);
1336 unsigned long flags;
1338 spin_lock_irqsave(&msb->q_lock, flags);
1340 blk_start_queue(msb->queue);
1341 spin_unlock_irqrestore(&msb->q_lock, flags);
1343 del_gendisk(msb->disk);
1344 dev_dbg(&card->dev, "mspro block remove\n");
1346 blk_cleanup_queue(msb->queue);
1349 sysfs_remove_group(&card->dev.kobj, &msb->attr_group);
1351 mutex_lock(&mspro_block_disk_lock);
1352 mspro_block_data_clear(msb);
1353 mutex_unlock(&mspro_block_disk_lock);
1355 mspro_block_disk_release(msb->disk);
1356 memstick_set_drvdata(card, NULL);
1361 static int mspro_block_suspend(struct memstick_dev *card, pm_message_t state)
1363 struct mspro_block_data *msb = memstick_get_drvdata(card);
1364 unsigned long flags;
1366 spin_lock_irqsave(&msb->q_lock, flags);
1367 blk_stop_queue(msb->queue);
1369 spin_unlock_irqrestore(&msb->q_lock, flags);
1374 static int mspro_block_resume(struct memstick_dev *card)
1376 struct mspro_block_data *msb = memstick_get_drvdata(card);
1377 unsigned long flags;
1380 #ifdef CONFIG_MEMSTICK_UNSAFE_RESUME
1382 struct mspro_block_data *new_msb;
1383 struct memstick_host *host = card->host;
1384 struct mspro_sys_attr *s_attr, *r_attr;
1387 mutex_lock(&host->lock);
1388 new_msb = kzalloc(sizeof(struct mspro_block_data), GFP_KERNEL);
1394 new_msb->card = card;
1395 memstick_set_drvdata(card, new_msb);
1396 if (mspro_block_init_card(card))
1399 for (cnt = 0; new_msb->attr_group.attrs[cnt]
1400 && msb->attr_group.attrs[cnt]; ++cnt) {
1401 s_attr = mspro_from_sysfs_attr(new_msb->attr_group.attrs[cnt]);
1402 r_attr = mspro_from_sysfs_attr(msb->attr_group.attrs[cnt]);
1404 if (s_attr->id == MSPRO_BLOCK_ID_SYSINFO
1405 && r_attr->id == s_attr->id) {
1406 if (memcmp(s_attr->data, r_attr->data, s_attr->size))
1415 memstick_set_drvdata(card, msb);
1416 mspro_block_data_clear(new_msb);
1419 mutex_unlock(&host->lock);
1421 #endif /* CONFIG_MEMSTICK_UNSAFE_RESUME */
1423 spin_lock_irqsave(&msb->q_lock, flags);
1424 blk_start_queue(msb->queue);
1425 spin_unlock_irqrestore(&msb->q_lock, flags);
1431 #define mspro_block_suspend NULL
1432 #define mspro_block_resume NULL
1434 #endif /* CONFIG_PM */
1436 static struct memstick_device_id mspro_block_id_tbl[] = {
1437 {MEMSTICK_MATCH_ALL, MEMSTICK_TYPE_PRO, MEMSTICK_CATEGORY_STORAGE_DUO,
1438 MEMSTICK_CLASS_DUO},
1443 static struct memstick_driver mspro_block_driver = {
1445 .name = DRIVER_NAME,
1446 .owner = THIS_MODULE
1448 .id_table = mspro_block_id_tbl,
1449 .probe = mspro_block_probe,
1450 .remove = mspro_block_remove,
1451 .suspend = mspro_block_suspend,
1452 .resume = mspro_block_resume
1455 static int __init mspro_block_init(void)
1459 rc = register_blkdev(major, DRIVER_NAME);
1461 printk(KERN_ERR DRIVER_NAME ": failed to register "
1462 "major %d, error %d\n", major, rc);
1468 rc = memstick_register_driver(&mspro_block_driver);
1470 unregister_blkdev(major, DRIVER_NAME);
1474 static void __exit mspro_block_exit(void)
1476 memstick_unregister_driver(&mspro_block_driver);
1477 unregister_blkdev(major, DRIVER_NAME);
1478 idr_destroy(&mspro_block_disk_idr);
1481 module_init(mspro_block_init);
1482 module_exit(mspro_block_exit);
1484 MODULE_LICENSE("GPL");
1485 MODULE_AUTHOR("Alex Dubov");
1486 MODULE_DESCRIPTION("Sony MemoryStickPro block device driver");
1487 MODULE_DEVICE_TABLE(memstick, mspro_block_id_tbl);