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/memstick.h>
21 #define DRIVER_NAME "mspro_block"
24 module_param(major, int, 0644);
26 #define MSPRO_BLOCK_MAX_SEGS 32
27 #define MSPRO_BLOCK_MAX_PAGES ((2 << 16) - 1)
29 #define MSPRO_BLOCK_SIGNATURE 0xa5c3
30 #define MSPRO_BLOCK_MAX_ATTRIBUTES 41
33 MSPRO_BLOCK_ID_SYSINFO = 0x10,
34 MSPRO_BLOCK_ID_MODELNAME = 0x15,
35 MSPRO_BLOCK_ID_MBR = 0x20,
36 MSPRO_BLOCK_ID_PBR16 = 0x21,
37 MSPRO_BLOCK_ID_PBR32 = 0x22,
38 MSPRO_BLOCK_ID_SPECFILEVALUES1 = 0x25,
39 MSPRO_BLOCK_ID_SPECFILEVALUES2 = 0x26,
40 MSPRO_BLOCK_ID_DEVINFO = 0x30
43 struct mspro_sys_attr {
48 struct device_attribute dev_attr;
51 struct mspro_attr_entry {
55 unsigned char reserved[3];
56 } __attribute__((packed));
58 struct mspro_attribute {
59 unsigned short signature;
60 unsigned short version;
62 unsigned char reserved[11];
63 struct mspro_attr_entry entries[];
64 } __attribute__((packed));
66 struct mspro_sys_info {
68 unsigned char reserved0;
69 unsigned short block_size;
70 unsigned short block_count;
71 unsigned short user_block_count;
72 unsigned short page_size;
73 unsigned char reserved1[2];
74 unsigned char assembly_date[8];
75 unsigned int serial_number;
76 unsigned char assembly_maker_code;
77 unsigned char assembly_model_code[3];
78 unsigned short memory_maker_code;
79 unsigned short memory_model_code;
80 unsigned char reserved2[4];
83 unsigned short controller_number;
84 unsigned short controller_function;
85 unsigned short start_sector;
86 unsigned short unit_size;
87 unsigned char ms_sub_class;
88 unsigned char reserved3[4];
89 unsigned char interface_type;
90 unsigned short controller_code;
91 unsigned char format_type;
92 unsigned char reserved4;
93 unsigned char device_type;
94 unsigned char reserved5[7];
95 unsigned char mspro_id[16];
96 unsigned char reserved6[16];
97 } __attribute__((packed));
100 unsigned char boot_partition;
101 unsigned char start_head;
102 unsigned char start_sector;
103 unsigned char start_cylinder;
104 unsigned char partition_type;
105 unsigned char end_head;
106 unsigned char end_sector;
107 unsigned char end_cylinder;
108 unsigned int start_sectors;
109 unsigned int sectors_per_partition;
110 } __attribute__((packed));
112 struct mspro_specfile {
116 unsigned char reserved[10];
119 unsigned short cluster;
121 } __attribute__((packed));
123 struct mspro_devinfo {
124 unsigned short cylinders;
125 unsigned short heads;
126 unsigned short bytes_per_track;
127 unsigned short bytes_per_sector;
128 unsigned short sectors_per_track;
129 unsigned char reserved[6];
130 } __attribute__((packed));
132 struct mspro_block_data {
133 struct memstick_dev *card;
134 unsigned int usage_count;
135 struct gendisk *disk;
136 struct request_queue *queue;
138 wait_queue_head_t q_wait;
139 struct task_struct *q_thread;
141 unsigned short page_size;
142 unsigned short cylinders;
143 unsigned short heads;
144 unsigned short sectors_per_track;
146 unsigned char system;
147 unsigned char read_only:1,
151 unsigned char transfer_cmd;
153 int (*mrq_handler)(struct memstick_dev *card,
154 struct memstick_request **mrq);
156 struct attribute_group attr_group;
158 struct scatterlist req_sg[MSPRO_BLOCK_MAX_SEGS];
159 unsigned int seg_count;
160 unsigned int current_seg;
161 unsigned short current_page;
164 static DEFINE_IDR(mspro_block_disk_idr);
165 static DEFINE_MUTEX(mspro_block_disk_lock);
167 /*** Block device ***/
169 static int mspro_block_bd_open(struct inode *inode, struct file *filp)
171 struct gendisk *disk = inode->i_bdev->bd_disk;
172 struct mspro_block_data *msb = disk->private_data;
175 mutex_lock(&mspro_block_disk_lock);
177 if (msb && msb->card) {
179 if ((filp->f_mode & FMODE_WRITE) && msb->read_only)
185 mutex_unlock(&mspro_block_disk_lock);
191 static int mspro_block_disk_release(struct gendisk *disk)
193 struct mspro_block_data *msb = disk->private_data;
194 int disk_id = disk->first_minor >> MEMSTICK_PART_SHIFT;
196 mutex_lock(&mspro_block_disk_lock);
198 if (msb->usage_count) {
200 if (!msb->usage_count) {
202 disk->private_data = NULL;
203 idr_remove(&mspro_block_disk_idr, disk_id);
208 mutex_unlock(&mspro_block_disk_lock);
213 static int mspro_block_bd_release(struct inode *inode, struct file *filp)
215 struct gendisk *disk = inode->i_bdev->bd_disk;
216 return mspro_block_disk_release(disk);
219 static int mspro_block_bd_getgeo(struct block_device *bdev,
220 struct hd_geometry *geo)
222 struct mspro_block_data *msb = bdev->bd_disk->private_data;
224 geo->heads = msb->heads;
225 geo->sectors = msb->sectors_per_track;
226 geo->cylinders = msb->cylinders;
231 static struct block_device_operations ms_block_bdops = {
232 .open = mspro_block_bd_open,
233 .release = mspro_block_bd_release,
234 .getgeo = mspro_block_bd_getgeo,
238 /*** Information ***/
240 static struct mspro_sys_attr *mspro_from_sysfs_attr(struct attribute *attr)
242 struct device_attribute *dev_attr
243 = container_of(attr, struct device_attribute, attr);
244 return container_of(dev_attr, struct mspro_sys_attr, dev_attr);
247 static const char *mspro_block_attr_name(unsigned char tag)
250 case MSPRO_BLOCK_ID_SYSINFO:
251 return "attr_sysinfo";
252 case MSPRO_BLOCK_ID_MODELNAME:
253 return "attr_modelname";
254 case MSPRO_BLOCK_ID_MBR:
256 case MSPRO_BLOCK_ID_PBR16:
258 case MSPRO_BLOCK_ID_PBR32:
260 case MSPRO_BLOCK_ID_SPECFILEVALUES1:
261 return "attr_specfilevalues1";
262 case MSPRO_BLOCK_ID_SPECFILEVALUES2:
263 return "attr_specfilevalues2";
264 case MSPRO_BLOCK_ID_DEVINFO:
265 return "attr_devinfo";
271 typedef ssize_t (*sysfs_show_t)(struct device *dev,
272 struct device_attribute *attr,
275 static ssize_t mspro_block_attr_show_default(struct device *dev,
276 struct device_attribute *attr,
279 struct mspro_sys_attr *s_attr = container_of(attr,
280 struct mspro_sys_attr,
285 for (cnt = 0; cnt < s_attr->size; cnt++) {
286 if (cnt && !(cnt % 16)) {
291 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "%02x ",
292 ((unsigned char *)s_attr->data)[cnt]);
297 static ssize_t mspro_block_attr_show_sysinfo(struct device *dev,
298 struct device_attribute *attr,
301 struct mspro_sys_attr *x_attr = container_of(attr,
302 struct mspro_sys_attr,
304 struct mspro_sys_info *x_sys = x_attr->data;
307 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "class: %x\n",
309 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "block size: %x\n",
310 be16_to_cpu(x_sys->block_size));
311 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "block count: %x\n",
312 be16_to_cpu(x_sys->block_count));
313 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "user block count: %x\n",
314 be16_to_cpu(x_sys->user_block_count));
315 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "page size: %x\n",
316 be16_to_cpu(x_sys->page_size));
317 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "assembly date: "
318 "%d %04u-%02u-%02u %02u:%02u:%02u\n",
319 x_sys->assembly_date[0],
320 be16_to_cpu(*(unsigned short *)
321 &x_sys->assembly_date[1]),
322 x_sys->assembly_date[3], x_sys->assembly_date[4],
323 x_sys->assembly_date[5], x_sys->assembly_date[6],
324 x_sys->assembly_date[7]);
325 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "serial number: %x\n",
326 be32_to_cpu(x_sys->serial_number));
327 rc += scnprintf(buffer + rc, PAGE_SIZE - rc,
328 "assembly maker code: %x\n",
329 x_sys->assembly_maker_code);
330 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "assembly model code: "
331 "%02x%02x%02x\n", x_sys->assembly_model_code[0],
332 x_sys->assembly_model_code[1],
333 x_sys->assembly_model_code[2]);
334 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "memory maker code: %x\n",
335 be16_to_cpu(x_sys->memory_maker_code));
336 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "memory model code: %x\n",
337 be16_to_cpu(x_sys->memory_model_code));
338 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "vcc: %x\n",
340 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "vpp: %x\n",
342 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "controller number: %x\n",
343 be16_to_cpu(x_sys->controller_number));
344 rc += scnprintf(buffer + rc, PAGE_SIZE - rc,
345 "controller function: %x\n",
346 be16_to_cpu(x_sys->controller_function));
347 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sector: %x\n",
348 be16_to_cpu(x_sys->start_sector));
349 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "unit size: %x\n",
350 be16_to_cpu(x_sys->unit_size));
351 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "sub class: %x\n",
352 x_sys->ms_sub_class);
353 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "interface type: %x\n",
354 x_sys->interface_type);
355 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "controller code: %x\n",
356 be16_to_cpu(x_sys->controller_code));
357 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "format type: %x\n",
359 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "device type: %x\n",
361 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "mspro id: %s\n",
366 static ssize_t mspro_block_attr_show_modelname(struct device *dev,
367 struct device_attribute *attr,
370 struct mspro_sys_attr *s_attr = container_of(attr,
371 struct mspro_sys_attr,
374 return scnprintf(buffer, PAGE_SIZE, "%s", (char *)s_attr->data);
377 static ssize_t mspro_block_attr_show_mbr(struct device *dev,
378 struct device_attribute *attr,
381 struct mspro_sys_attr *x_attr = container_of(attr,
382 struct mspro_sys_attr,
384 struct mspro_mbr *x_mbr = x_attr->data;
387 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "boot partition: %x\n",
388 x_mbr->boot_partition);
389 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start head: %x\n",
391 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sector: %x\n",
392 x_mbr->start_sector);
393 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start cylinder: %x\n",
394 x_mbr->start_cylinder);
395 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "partition type: %x\n",
396 x_mbr->partition_type);
397 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end head: %x\n",
399 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end sector: %x\n",
401 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end cylinder: %x\n",
402 x_mbr->end_cylinder);
403 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sectors: %x\n",
404 x_mbr->start_sectors);
405 rc += scnprintf(buffer + rc, PAGE_SIZE - rc,
406 "sectors per partition: %x\n",
407 x_mbr->sectors_per_partition);
411 static ssize_t mspro_block_attr_show_specfile(struct device *dev,
412 struct device_attribute *attr,
415 struct mspro_sys_attr *x_attr = container_of(attr,
416 struct mspro_sys_attr,
418 struct mspro_specfile *x_spfile = x_attr->data;
419 char name[9], ext[4];
422 memcpy(name, x_spfile->name, 8);
424 memcpy(ext, x_spfile->ext, 3);
427 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "name: %s\n", name);
428 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "ext: %s\n", ext);
429 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "attribute: %x\n",
431 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "time: %d:%d:%d\n",
432 x_spfile->time >> 11,
433 (x_spfile->time >> 5) & 0x3f,
434 (x_spfile->time & 0x1f) * 2);
435 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "date: %d-%d-%d\n",
436 (x_spfile->date >> 9) + 1980,
437 (x_spfile->date >> 5) & 0xf,
438 x_spfile->date & 0x1f);
439 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start cluster: %x\n",
441 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "size: %x\n",
446 static ssize_t mspro_block_attr_show_devinfo(struct device *dev,
447 struct device_attribute *attr,
450 struct mspro_sys_attr *x_attr = container_of(attr,
451 struct mspro_sys_attr,
453 struct mspro_devinfo *x_devinfo = x_attr->data;
456 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "cylinders: %x\n",
457 be16_to_cpu(x_devinfo->cylinders));
458 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "heads: %x\n",
459 be16_to_cpu(x_devinfo->heads));
460 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "bytes per track: %x\n",
461 be16_to_cpu(x_devinfo->bytes_per_track));
462 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "bytes per sector: %x\n",
463 be16_to_cpu(x_devinfo->bytes_per_sector));
464 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "sectors per track: %x\n",
465 be16_to_cpu(x_devinfo->sectors_per_track));
469 static sysfs_show_t mspro_block_attr_show(unsigned char tag)
472 case MSPRO_BLOCK_ID_SYSINFO:
473 return mspro_block_attr_show_sysinfo;
474 case MSPRO_BLOCK_ID_MODELNAME:
475 return mspro_block_attr_show_modelname;
476 case MSPRO_BLOCK_ID_MBR:
477 return mspro_block_attr_show_mbr;
478 case MSPRO_BLOCK_ID_SPECFILEVALUES1:
479 case MSPRO_BLOCK_ID_SPECFILEVALUES2:
480 return mspro_block_attr_show_specfile;
481 case MSPRO_BLOCK_ID_DEVINFO:
482 return mspro_block_attr_show_devinfo;
484 return mspro_block_attr_show_default;
488 /*** Protocol handlers ***/
491 * Functions prefixed with "h_" are protocol callbacks. They can be called from
492 * interrupt context. Return value of 0 means that request processing is still
493 * ongoing, while special error value of -EAGAIN means that current request is
494 * finished (and request processor should come back some time later).
497 static int h_mspro_block_req_init(struct memstick_dev *card,
498 struct memstick_request **mrq)
500 struct mspro_block_data *msb = memstick_get_drvdata(card);
502 *mrq = &card->current_mrq;
503 card->next_request = msb->mrq_handler;
507 static int h_mspro_block_default(struct memstick_dev *card,
508 struct memstick_request **mrq)
510 complete(&card->mrq_complete);
514 return (*mrq)->error;
517 static int h_mspro_block_get_ro(struct memstick_dev *card,
518 struct memstick_request **mrq)
520 struct mspro_block_data *msb = memstick_get_drvdata(card);
523 complete(&card->mrq_complete);
524 return (*mrq)->error;
527 if ((*mrq)->data[offsetof(struct ms_status_register, status0)]
528 & MEMSTICK_STATUS0_WP)
533 complete(&card->mrq_complete);
537 static int h_mspro_block_wait_for_ced(struct memstick_dev *card,
538 struct memstick_request **mrq)
541 complete(&card->mrq_complete);
542 return (*mrq)->error;
545 dev_dbg(&card->dev, "wait for ced: value %x\n", (*mrq)->data[0]);
547 if ((*mrq)->data[0] & (MEMSTICK_INT_CMDNAK | MEMSTICK_INT_ERR)) {
548 card->current_mrq.error = -EFAULT;
549 complete(&card->mrq_complete);
550 return card->current_mrq.error;
553 if (!((*mrq)->data[0] & MEMSTICK_INT_CED))
556 card->current_mrq.error = 0;
557 complete(&card->mrq_complete);
562 static int h_mspro_block_transfer_data(struct memstick_dev *card,
563 struct memstick_request **mrq)
565 struct memstick_host *host = card->host;
566 struct mspro_block_data *msb = memstick_get_drvdata(card);
567 unsigned char t_val = 0;
568 struct scatterlist t_sg = { 0 };
572 complete(&card->mrq_complete);
573 return (*mrq)->error;
576 switch ((*mrq)->tpc) {
577 case MS_TPC_WRITE_REG:
578 memstick_init_req(*mrq, MS_TPC_SET_CMD, &msb->transfer_cmd, 1);
579 (*mrq)->get_int_reg = 1;
582 t_val = (*mrq)->int_reg;
583 memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1);
584 if (host->caps & MEMSTICK_CAP_AUTO_GET_INT)
588 t_val = (*mrq)->data[0];
590 if (t_val & (MEMSTICK_INT_CMDNAK | MEMSTICK_INT_ERR)) {
591 t_val = MSPRO_CMD_STOP;
592 memstick_init_req(*mrq, MS_TPC_SET_CMD, &t_val, 1);
593 card->next_request = h_mspro_block_default;
597 if (msb->current_page
598 == (msb->req_sg[msb->current_seg].length
600 msb->current_page = 0;
603 if (msb->current_seg == msb->seg_count) {
604 if (t_val & MEMSTICK_INT_CED) {
605 complete(&card->mrq_complete);
609 = h_mspro_block_wait_for_ced;
610 memstick_init_req(*mrq, MS_TPC_GET_INT,
617 if (!(t_val & MEMSTICK_INT_BREQ)) {
618 memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1);
622 t_offset = msb->req_sg[msb->current_seg].offset;
623 t_offset += msb->current_page * msb->page_size;
626 nth_page(sg_page(&(msb->req_sg[msb->current_seg])),
627 t_offset >> PAGE_SHIFT),
628 msb->page_size, offset_in_page(t_offset));
630 memstick_init_req_sg(*mrq, msb->data_dir == READ
631 ? MS_TPC_READ_LONG_DATA
632 : MS_TPC_WRITE_LONG_DATA,
634 (*mrq)->get_int_reg = 1;
636 case MS_TPC_READ_LONG_DATA:
637 case MS_TPC_WRITE_LONG_DATA:
639 if (host->caps & MEMSTICK_CAP_AUTO_GET_INT) {
640 t_val = (*mrq)->int_reg;
643 memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1);
652 /*** Data transfer ***/
654 static void mspro_block_process_request(struct memstick_dev *card,
657 struct mspro_block_data *msb = memstick_get_drvdata(card);
658 struct mspro_param_register param;
660 unsigned short page_count;
666 msb->current_seg = 0;
667 msb->seg_count = blk_rq_map_sg(req->q, req, msb->req_sg);
669 if (msb->seg_count) {
670 msb->current_page = 0;
671 for (rc = 0; rc < msb->seg_count; rc++)
672 page_count += msb->req_sg[rc].length
676 sector_div(t_sec, msb->page_size >> 9);
677 param.system = msb->system;
678 param.data_count = cpu_to_be16(page_count);
679 param.data_address = cpu_to_be32((uint32_t)t_sec);
682 msb->data_dir = rq_data_dir(req);
683 msb->transfer_cmd = msb->data_dir == READ
684 ? MSPRO_CMD_READ_DATA
685 : MSPRO_CMD_WRITE_DATA;
687 dev_dbg(&card->dev, "data transfer: cmd %x, "
688 "lba %x, count %x\n", msb->transfer_cmd,
689 be32_to_cpu(param.data_address),
692 card->next_request = h_mspro_block_req_init;
693 msb->mrq_handler = h_mspro_block_transfer_data;
694 memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG,
695 ¶m, sizeof(param));
696 memstick_new_req(card->host);
697 wait_for_completion(&card->mrq_complete);
698 rc = card->current_mrq.error;
700 if (rc || (card->current_mrq.tpc == MSPRO_CMD_STOP)) {
701 for (cnt = 0; cnt < msb->current_seg; cnt++)
702 page_count += msb->req_sg[cnt].length
705 if (msb->current_page)
706 page_count += msb->current_page - 1;
708 if (page_count && (msb->data_dir == READ))
709 rc = msb->page_size * page_count;
713 rc = msb->page_size * page_count;
717 spin_lock_irqsave(&msb->q_lock, flags);
719 chunk = __blk_end_request(req, 0, rc);
721 chunk = __blk_end_request(req, rc, 0);
723 dev_dbg(&card->dev, "end chunk %d, %d\n", rc, chunk);
724 spin_unlock_irqrestore(&msb->q_lock, flags);
728 static int mspro_block_has_request(struct mspro_block_data *msb)
733 spin_lock_irqsave(&msb->q_lock, flags);
734 if (kthread_should_stop() || msb->has_request)
736 spin_unlock_irqrestore(&msb->q_lock, flags);
740 static int mspro_block_queue_thread(void *data)
742 struct memstick_dev *card = data;
743 struct memstick_host *host = card->host;
744 struct mspro_block_data *msb = memstick_get_drvdata(card);
749 wait_event(msb->q_wait, mspro_block_has_request(msb));
750 dev_dbg(&card->dev, "thread iter\n");
752 spin_lock_irqsave(&msb->q_lock, flags);
753 req = elv_next_request(msb->queue);
754 dev_dbg(&card->dev, "next req %p\n", req);
756 msb->has_request = 0;
757 if (kthread_should_stop()) {
758 spin_unlock_irqrestore(&msb->q_lock, flags);
762 msb->has_request = 1;
763 spin_unlock_irqrestore(&msb->q_lock, flags);
766 mutex_lock(&host->lock);
767 mspro_block_process_request(card, req);
768 mutex_unlock(&host->lock);
771 dev_dbg(&card->dev, "thread finished\n");
775 static void mspro_block_request(struct request_queue *q)
777 struct memstick_dev *card = q->queuedata;
778 struct mspro_block_data *msb = memstick_get_drvdata(card);
779 struct request *req = NULL;
782 msb->has_request = 1;
783 wake_up_all(&msb->q_wait);
785 while ((req = elv_next_request(q)) != NULL)
786 end_queued_request(req, -ENODEV);
790 /*** Initialization ***/
792 static int mspro_block_wait_for_ced(struct memstick_dev *card)
794 struct mspro_block_data *msb = memstick_get_drvdata(card);
796 card->next_request = h_mspro_block_req_init;
797 msb->mrq_handler = h_mspro_block_wait_for_ced;
798 memstick_init_req(&card->current_mrq, MS_TPC_GET_INT, NULL, 1);
799 memstick_new_req(card->host);
800 wait_for_completion(&card->mrq_complete);
801 return card->current_mrq.error;
804 static int mspro_block_switch_to_parallel(struct memstick_dev *card)
806 struct memstick_host *host = card->host;
807 struct mspro_block_data *msb = memstick_get_drvdata(card);
808 struct mspro_param_register param = {
815 card->next_request = h_mspro_block_req_init;
816 msb->mrq_handler = h_mspro_block_default;
817 memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, ¶m,
819 memstick_new_req(host);
820 wait_for_completion(&card->mrq_complete);
821 if (card->current_mrq.error)
822 return card->current_mrq.error;
824 msb->system = MEMSTICK_SYS_PAR4;
825 host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_PAR4);
827 card->next_request = h_mspro_block_req_init;
828 msb->mrq_handler = h_mspro_block_default;
829 memstick_init_req(&card->current_mrq, MS_TPC_GET_INT, NULL, 1);
830 memstick_new_req(card->host);
831 wait_for_completion(&card->mrq_complete);
833 if (card->current_mrq.error) {
835 host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_SERIAL);
842 /* Memory allocated for attributes by this function should be freed by
843 * mspro_block_data_clear, no matter if the initialization process succeded
846 static int mspro_block_read_attributes(struct memstick_dev *card)
848 struct mspro_block_data *msb = memstick_get_drvdata(card);
849 struct mspro_param_register param = {
850 .system = msb->system,
851 .data_count = cpu_to_be16(1),
855 struct mspro_attribute *attr = NULL;
856 struct mspro_sys_attr *s_attr = NULL;
857 unsigned char *buffer = NULL;
858 int cnt, rc, attr_count;
860 unsigned short page_count;
862 attr = kmalloc(msb->page_size, GFP_KERNEL);
866 sg_init_one(&msb->req_sg[0], attr, msb->page_size);
868 msb->current_seg = 0;
869 msb->current_page = 0;
870 msb->data_dir = READ;
871 msb->transfer_cmd = MSPRO_CMD_READ_ATRB;
873 card->next_request = h_mspro_block_req_init;
874 msb->mrq_handler = h_mspro_block_transfer_data;
875 memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, ¶m,
877 memstick_new_req(card->host);
878 wait_for_completion(&card->mrq_complete);
879 if (card->current_mrq.error) {
880 rc = card->current_mrq.error;
884 if (be16_to_cpu(attr->signature) != MSPRO_BLOCK_SIGNATURE) {
885 printk(KERN_ERR "%s: unrecognized device signature %x\n",
886 card->dev.bus_id, be16_to_cpu(attr->signature));
891 if (attr->count > MSPRO_BLOCK_MAX_ATTRIBUTES) {
892 printk(KERN_WARNING "%s: way too many attribute entries\n",
894 attr_count = MSPRO_BLOCK_MAX_ATTRIBUTES;
896 attr_count = attr->count;
898 msb->attr_group.attrs = kzalloc((attr_count + 1)
899 * sizeof(struct attribute),
901 if (!msb->attr_group.attrs) {
905 msb->attr_group.name = "media_attributes";
907 buffer = kmalloc(msb->page_size, GFP_KERNEL);
912 memcpy(buffer, (char *)attr, msb->page_size);
915 for (cnt = 0; cnt < attr_count; ++cnt) {
916 s_attr = kzalloc(sizeof(struct mspro_sys_attr), GFP_KERNEL);
919 goto out_free_buffer;
922 msb->attr_group.attrs[cnt] = &s_attr->dev_attr.attr;
923 addr = be32_to_cpu(attr->entries[cnt].address);
924 rc = be32_to_cpu(attr->entries[cnt].size);
925 dev_dbg(&card->dev, "adding attribute %d: id %x, address %x, "
926 "size %x\n", cnt, attr->entries[cnt].id, addr, rc);
927 s_attr->id = attr->entries[cnt].id;
928 if (mspro_block_attr_name(s_attr->id))
929 snprintf(s_attr->name, sizeof(s_attr->name), "%s",
930 mspro_block_attr_name(attr->entries[cnt].id));
932 snprintf(s_attr->name, sizeof(s_attr->name),
933 "attr_x%02x", attr->entries[cnt].id);
935 s_attr->dev_attr.attr.name = s_attr->name;
936 s_attr->dev_attr.attr.mode = S_IRUGO;
937 s_attr->dev_attr.attr.owner = THIS_MODULE;
938 s_attr->dev_attr.show = mspro_block_attr_show(s_attr->id);
944 s_attr->data = kmalloc(rc, GFP_KERNEL);
947 goto out_free_buffer;
950 if (((addr / msb->page_size)
951 == be32_to_cpu(param.data_address))
952 && (((addr + rc - 1) / msb->page_size)
953 == be32_to_cpu(param.data_address))) {
954 memcpy(s_attr->data, buffer + addr % msb->page_size,
959 if (page_count <= (rc / msb->page_size)) {
961 page_count = (rc / msb->page_size) + 1;
962 buffer = kmalloc(page_count * msb->page_size,
970 param.system = msb->system;
971 param.data_count = cpu_to_be16((rc / msb->page_size) + 1);
972 param.data_address = cpu_to_be32(addr / msb->page_size);
975 sg_init_one(&msb->req_sg[0], buffer,
976 be16_to_cpu(param.data_count) * 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 dev_dbg(&card->dev, "reading attribute pages %x, %x\n",
984 be32_to_cpu(param.data_address),
985 be16_to_cpu(param.data_count));
987 card->next_request = h_mspro_block_req_init;
988 msb->mrq_handler = h_mspro_block_transfer_data;
989 memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG,
990 (char *)¶m, sizeof(param));
991 memstick_new_req(card->host);
992 wait_for_completion(&card->mrq_complete);
993 if (card->current_mrq.error) {
994 rc = card->current_mrq.error;
995 goto out_free_buffer;
998 memcpy(s_attr->data, buffer + addr % msb->page_size, rc);
1009 static int mspro_block_init_card(struct memstick_dev *card)
1011 struct mspro_block_data *msb = memstick_get_drvdata(card);
1012 struct memstick_host *host = card->host;
1015 msb->system = MEMSTICK_SYS_SERIAL;
1016 card->reg_addr.r_offset = offsetof(struct mspro_register, status);
1017 card->reg_addr.r_length = sizeof(struct ms_status_register);
1018 card->reg_addr.w_offset = offsetof(struct mspro_register, param);
1019 card->reg_addr.w_length = sizeof(struct mspro_param_register);
1021 if (memstick_set_rw_addr(card))
1024 if (host->caps & MEMSTICK_CAP_PAR4) {
1025 if (mspro_block_switch_to_parallel(card))
1026 printk(KERN_WARNING "%s: could not switch to "
1027 "parallel interface\n", card->dev.bus_id);
1030 rc = mspro_block_wait_for_ced(card);
1033 dev_dbg(&card->dev, "card activated\n");
1035 card->next_request = h_mspro_block_req_init;
1036 msb->mrq_handler = h_mspro_block_get_ro;
1037 memstick_init_req(&card->current_mrq, MS_TPC_READ_REG, NULL,
1038 sizeof(struct ms_status_register));
1039 memstick_new_req(card->host);
1040 wait_for_completion(&card->mrq_complete);
1041 if (card->current_mrq.error)
1042 return card->current_mrq.error;
1044 dev_dbg(&card->dev, "card r/w status %d\n", msb->read_only ? 0 : 1);
1046 msb->page_size = 512;
1047 rc = mspro_block_read_attributes(card);
1051 dev_dbg(&card->dev, "attributes loaded\n");
1056 static int mspro_block_init_disk(struct memstick_dev *card)
1058 struct mspro_block_data *msb = memstick_get_drvdata(card);
1059 struct memstick_host *host = card->host;
1060 struct mspro_devinfo *dev_info = NULL;
1061 struct mspro_sys_info *sys_info = NULL;
1062 struct mspro_sys_attr *s_attr = NULL;
1064 u64 limit = BLK_BOUNCE_HIGH;
1065 unsigned long capacity;
1067 if (host->cdev.dev->dma_mask && *(host->cdev.dev->dma_mask))
1068 limit = *(host->cdev.dev->dma_mask);
1070 for (rc = 0; msb->attr_group.attrs[rc]; ++rc) {
1071 s_attr = mspro_from_sysfs_attr(msb->attr_group.attrs[rc]);
1073 if (s_attr->id == MSPRO_BLOCK_ID_DEVINFO)
1074 dev_info = s_attr->data;
1075 else if (s_attr->id == MSPRO_BLOCK_ID_SYSINFO)
1076 sys_info = s_attr->data;
1079 if (!dev_info || !sys_info)
1082 msb->cylinders = be16_to_cpu(dev_info->cylinders);
1083 msb->heads = be16_to_cpu(dev_info->heads);
1084 msb->sectors_per_track = be16_to_cpu(dev_info->sectors_per_track);
1086 msb->page_size = be16_to_cpu(sys_info->unit_size);
1088 if (!idr_pre_get(&mspro_block_disk_idr, GFP_KERNEL))
1091 mutex_lock(&mspro_block_disk_lock);
1092 rc = idr_get_new(&mspro_block_disk_idr, card, &disk_id);
1093 mutex_unlock(&mspro_block_disk_lock);
1098 if ((disk_id << MEMSTICK_PART_SHIFT) > 255) {
1100 goto out_release_id;
1103 msb->disk = alloc_disk(1 << MEMSTICK_PART_SHIFT);
1106 goto out_release_id;
1109 spin_lock_init(&msb->q_lock);
1110 init_waitqueue_head(&msb->q_wait);
1112 msb->queue = blk_init_queue(mspro_block_request, &msb->q_lock);
1118 msb->queue->queuedata = card;
1120 blk_queue_bounce_limit(msb->queue, limit);
1121 blk_queue_max_sectors(msb->queue, MSPRO_BLOCK_MAX_PAGES);
1122 blk_queue_max_phys_segments(msb->queue, MSPRO_BLOCK_MAX_SEGS);
1123 blk_queue_max_hw_segments(msb->queue, MSPRO_BLOCK_MAX_SEGS);
1124 blk_queue_max_segment_size(msb->queue,
1125 MSPRO_BLOCK_MAX_PAGES * msb->page_size);
1127 msb->disk->major = major;
1128 msb->disk->first_minor = disk_id << MEMSTICK_PART_SHIFT;
1129 msb->disk->fops = &ms_block_bdops;
1130 msb->usage_count = 1;
1131 msb->disk->private_data = msb;
1132 msb->disk->queue = msb->queue;
1133 msb->disk->driverfs_dev = &card->dev;
1135 sprintf(msb->disk->disk_name, "mspblk%d", disk_id);
1137 blk_queue_hardsect_size(msb->queue, msb->page_size);
1139 capacity = be16_to_cpu(sys_info->user_block_count);
1140 capacity *= be16_to_cpu(sys_info->block_size);
1141 capacity *= msb->page_size >> 9;
1142 set_capacity(msb->disk, capacity);
1143 dev_dbg(&card->dev, "capacity set %ld\n", capacity);
1144 msb->q_thread = kthread_run(mspro_block_queue_thread, card,
1146 if (IS_ERR(msb->q_thread))
1149 mutex_unlock(&host->lock);
1150 add_disk(msb->disk);
1151 mutex_lock(&host->lock);
1156 put_disk(msb->disk);
1158 mutex_lock(&mspro_block_disk_lock);
1159 idr_remove(&mspro_block_disk_idr, disk_id);
1160 mutex_unlock(&mspro_block_disk_lock);
1164 static void mspro_block_data_clear(struct mspro_block_data *msb)
1167 struct mspro_sys_attr *s_attr;
1169 if (msb->attr_group.attrs) {
1170 for (cnt = 0; msb->attr_group.attrs[cnt]; ++cnt) {
1171 s_attr = mspro_from_sysfs_attr(msb->attr_group
1173 kfree(s_attr->data);
1176 kfree(msb->attr_group.attrs);
1182 static int mspro_block_check_card(struct memstick_dev *card)
1184 struct mspro_block_data *msb = memstick_get_drvdata(card);
1186 return (msb->active == 1);
1189 static int mspro_block_probe(struct memstick_dev *card)
1191 struct mspro_block_data *msb;
1194 msb = kzalloc(sizeof(struct mspro_block_data), GFP_KERNEL);
1197 memstick_set_drvdata(card, msb);
1200 rc = mspro_block_init_card(card);
1205 rc = sysfs_create_group(&card->dev.kobj, &msb->attr_group);
1209 rc = mspro_block_init_disk(card);
1211 card->check = mspro_block_check_card;
1215 sysfs_remove_group(&card->dev.kobj, &msb->attr_group);
1217 memstick_set_drvdata(card, NULL);
1218 mspro_block_data_clear(msb);
1223 static void mspro_block_remove(struct memstick_dev *card)
1225 struct mspro_block_data *msb = memstick_get_drvdata(card);
1226 struct task_struct *q_thread = NULL;
1227 unsigned long flags;
1229 del_gendisk(msb->disk);
1230 dev_dbg(&card->dev, "mspro block remove\n");
1231 spin_lock_irqsave(&msb->q_lock, flags);
1232 q_thread = msb->q_thread;
1233 msb->q_thread = NULL;
1235 spin_unlock_irqrestore(&msb->q_lock, flags);
1238 mutex_unlock(&card->host->lock);
1239 kthread_stop(q_thread);
1240 mutex_lock(&card->host->lock);
1243 dev_dbg(&card->dev, "queue thread stopped\n");
1245 blk_cleanup_queue(msb->queue);
1247 sysfs_remove_group(&card->dev.kobj, &msb->attr_group);
1249 mutex_lock(&mspro_block_disk_lock);
1250 mspro_block_data_clear(msb);
1251 mutex_unlock(&mspro_block_disk_lock);
1253 mspro_block_disk_release(msb->disk);
1254 memstick_set_drvdata(card, NULL);
1259 static int mspro_block_suspend(struct memstick_dev *card, pm_message_t state)
1261 struct mspro_block_data *msb = memstick_get_drvdata(card);
1262 struct task_struct *q_thread = NULL;
1263 unsigned long flags;
1265 spin_lock_irqsave(&msb->q_lock, flags);
1266 q_thread = msb->q_thread;
1267 msb->q_thread = NULL;
1269 blk_stop_queue(msb->queue);
1270 spin_unlock_irqrestore(&msb->q_lock, flags);
1273 kthread_stop(q_thread);
1278 static int mspro_block_resume(struct memstick_dev *card)
1280 struct mspro_block_data *msb = memstick_get_drvdata(card);
1281 unsigned long flags;
1284 #ifdef CONFIG_MEMSTICK_UNSAFE_RESUME
1286 struct mspro_block_data *new_msb;
1287 struct memstick_host *host = card->host;
1288 struct mspro_sys_attr *s_attr, *r_attr;
1291 mutex_lock(&host->lock);
1292 new_msb = kzalloc(sizeof(struct mspro_block_data), GFP_KERNEL);
1298 new_msb->card = card;
1299 memstick_set_drvdata(card, new_msb);
1300 if (mspro_block_init_card(card))
1303 for (cnt = 0; new_msb->attr_group.attrs[cnt]
1304 && msb->attr_group.attrs[cnt]; ++cnt) {
1305 s_attr = mspro_from_sysfs_attr(new_msb->attr_group.attrs[cnt]);
1306 r_attr = mspro_from_sysfs_attr(msb->attr_group.attrs[cnt]);
1308 if (s_attr->id == MSPRO_BLOCK_ID_SYSINFO
1309 && r_attr->id == s_attr->id) {
1310 if (memcmp(s_attr->data, r_attr->data, s_attr->size))
1313 memstick_set_drvdata(card, msb);
1314 msb->q_thread = kthread_run(mspro_block_queue_thread,
1315 card, DRIVER_NAME"d");
1316 if (IS_ERR(msb->q_thread))
1317 msb->q_thread = NULL;
1326 memstick_set_drvdata(card, msb);
1327 mspro_block_data_clear(new_msb);
1330 mutex_unlock(&host->lock);
1332 #endif /* CONFIG_MEMSTICK_UNSAFE_RESUME */
1334 spin_lock_irqsave(&msb->q_lock, flags);
1335 blk_start_queue(msb->queue);
1336 spin_unlock_irqrestore(&msb->q_lock, flags);
1342 #define mspro_block_suspend NULL
1343 #define mspro_block_resume NULL
1345 #endif /* CONFIG_PM */
1347 static struct memstick_device_id mspro_block_id_tbl[] = {
1348 {MEMSTICK_MATCH_ALL, MEMSTICK_TYPE_PRO, MEMSTICK_CATEGORY_STORAGE_DUO,
1349 MEMSTICK_CLASS_GENERIC_DUO},
1354 static struct memstick_driver mspro_block_driver = {
1356 .name = DRIVER_NAME,
1357 .owner = THIS_MODULE
1359 .id_table = mspro_block_id_tbl,
1360 .probe = mspro_block_probe,
1361 .remove = mspro_block_remove,
1362 .suspend = mspro_block_suspend,
1363 .resume = mspro_block_resume
1366 static int __init mspro_block_init(void)
1370 rc = register_blkdev(major, DRIVER_NAME);
1372 printk(KERN_ERR DRIVER_NAME ": failed to register "
1373 "major %d, error %d\n", major, rc);
1379 rc = memstick_register_driver(&mspro_block_driver);
1381 unregister_blkdev(major, DRIVER_NAME);
1385 static void __exit mspro_block_exit(void)
1387 memstick_unregister_driver(&mspro_block_driver);
1388 unregister_blkdev(major, DRIVER_NAME);
1389 idr_destroy(&mspro_block_disk_idr);
1392 module_init(mspro_block_init);
1393 module_exit(mspro_block_exit);
1395 MODULE_LICENSE("GPL");
1396 MODULE_AUTHOR("Alex Dubov");
1397 MODULE_DESCRIPTION("Sony MemoryStickPro block device driver");
1398 MODULE_DEVICE_TABLE(memstick, mspro_block_id_tbl);