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tifm: clear interrupt mask bits before setting them on adapter init
[mirror_ubuntu-artful-kernel.git] / drivers / memstick / core / mspro_block.c
CommitLineData
baf8532a
AD		 1/*
2 * Sony MemoryStick Pro storage support
3 *
4 * Copyright (C) 2007 Alex Dubov <oakad@yahoo.com>
5 *
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.
9 *
10 * Special thanks to Carlos Corbacho for providing various MemoryStick cards
11 * that made this driver possible.
12 *
13 */
14
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>
20
21#define DRIVER_NAME "mspro_block"
baf8532a
AD		 22
23static int major;
24module_param(major, int, 0644);
25
26#define MSPRO_BLOCK_MAX_SEGS 32
27#define MSPRO_BLOCK_MAX_PAGES ((2 << 16) - 1)
28
29#define MSPRO_BLOCK_SIGNATURE 0xa5c3
30#define MSPRO_BLOCK_MAX_ATTRIBUTES 41
31
32enum {
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
41};
42
43struct mspro_sys_attr {
44 size_t size;
45 void *data;
46 unsigned char id;
47 char name[32];
48 struct device_attribute dev_attr;
49};
50
51struct mspro_attr_entry {
52 unsigned int address;
53 unsigned int size;
54 unsigned char id;
55 unsigned char reserved[3];
56} __attribute__((packed));
57
58struct mspro_attribute {
59 unsigned short signature;
60 unsigned short version;
61 unsigned char count;
62 unsigned char reserved[11];
63 struct mspro_attr_entry entries[];
64} __attribute__((packed));
65
66struct mspro_sys_info {
67 unsigned char class;
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];
81 unsigned char vcc;
82 unsigned char vpp;
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));
98
99struct mspro_mbr {
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));
111
112struct mspro_devinfo {
113 unsigned short cylinders;
114 unsigned short heads;
115 unsigned short bytes_per_track;
116 unsigned short bytes_per_sector;
117 unsigned short sectors_per_track;
118 unsigned char reserved[6];
119} __attribute__((packed));
120
121struct mspro_block_data {
122 struct memstick_dev *card;
123 unsigned int usage_count;
124 struct gendisk *disk;
125 struct request_queue *queue;
126 spinlock_t q_lock;
127 wait_queue_head_t q_wait;
128 struct task_struct *q_thread;
129
130 unsigned short page_size;
131 unsigned short cylinders;
132 unsigned short heads;
133 unsigned short sectors_per_track;
134
135 unsigned char system;
136 unsigned char read_only:1,
137 active:1,
138 has_request:1,
139 data_dir:1;
140 unsigned char transfer_cmd;
141
142 int (*mrq_handler)(struct memstick_dev *card,
143 struct memstick_request **mrq);
144
145 struct attribute_group attr_group;
146
147 struct scatterlist req_sg[MSPRO_BLOCK_MAX_SEGS];
148 unsigned int seg_count;
149 unsigned int current_seg;
150 unsigned short current_page;
151};
152
153static DEFINE_IDR(mspro_block_disk_idr);
154static DEFINE_MUTEX(mspro_block_disk_lock);
155
156/*** Block device ***/
157
158static int mspro_block_bd_open(struct inode *inode, struct file *filp)
159{
160 struct gendisk *disk = inode->i_bdev->bd_disk;
161 struct mspro_block_data *msb = disk->private_data;
162 int rc = -ENXIO;
163
164 mutex_lock(&mspro_block_disk_lock);
165
166 if (msb && msb->card) {
167 msb->usage_count++;
168 if ((filp->f_mode & FMODE_WRITE) && msb->read_only)
169 rc = -EROFS;
170 else
171 rc = 0;
172 }
173
174 mutex_unlock(&mspro_block_disk_lock);
175
176 return rc;
177}
178
179
180static int mspro_block_disk_release(struct gendisk *disk)
181{
182 struct mspro_block_data *msb = disk->private_data;
183 int disk_id = disk->first_minor >> MEMSTICK_PART_SHIFT;
184
185 mutex_lock(&mspro_block_disk_lock);
186
187 if (msb->usage_count) {
188 msb->usage_count--;
189 if (!msb->usage_count) {
190 kfree(msb);
191 disk->private_data = NULL;
192 idr_remove(&mspro_block_disk_idr, disk_id);
193 put_disk(disk);
194 }
195 }
196
197 mutex_unlock(&mspro_block_disk_lock);
198
199 return 0;
200}
201
202static int mspro_block_bd_release(struct inode *inode, struct file *filp)
203{
204 struct gendisk *disk = inode->i_bdev->bd_disk;
205 return mspro_block_disk_release(disk);
206}
207
208static int mspro_block_bd_getgeo(struct block_device *bdev,
209 struct hd_geometry *geo)
210{
211 struct mspro_block_data *msb = bdev->bd_disk->private_data;
212
213 geo->heads = msb->heads;
214 geo->sectors = msb->sectors_per_track;
215 geo->cylinders = msb->cylinders;
216
217 return 0;
218}
219
220static struct block_device_operations ms_block_bdops = {
221 .open = mspro_block_bd_open,
222 .release = mspro_block_bd_release,
223 .getgeo = mspro_block_bd_getgeo,
224 .owner = THIS_MODULE
225};
226
227/*** Information ***/
228
229static struct mspro_sys_attr *mspro_from_sysfs_attr(struct attribute *attr)
230{
231 struct device_attribute *dev_attr
232 = container_of(attr, struct device_attribute, attr);
233 return container_of(dev_attr, struct mspro_sys_attr, dev_attr);
234}
235
236static const char *mspro_block_attr_name(unsigned char tag)
237{
238 switch (tag) {
239 case MSPRO_BLOCK_ID_SYSINFO:
240 return "attr_sysinfo";
241 case MSPRO_BLOCK_ID_MODELNAME:
242 return "attr_modelname";
243 case MSPRO_BLOCK_ID_MBR:
244 return "attr_mbr";
245 case MSPRO_BLOCK_ID_PBR16:
246 return "attr_pbr16";
247 case MSPRO_BLOCK_ID_PBR32:
248 return "attr_pbr32";
249 case MSPRO_BLOCK_ID_SPECFILEVALUES1:
250 return "attr_specfilevalues1";
251 case MSPRO_BLOCK_ID_SPECFILEVALUES2:
252 return "attr_specfilevalues2";
253 case MSPRO_BLOCK_ID_DEVINFO:
254 return "attr_devinfo";
255 default:
256 return NULL;
257 };
258}
259
260typedef ssize_t (*sysfs_show_t)(struct device *dev,
261 struct device_attribute *attr,
262 char *buffer);
263
264static ssize_t mspro_block_attr_show_default(struct device *dev,
265 struct device_attribute *attr,
266 char *buffer)
267{
268 struct mspro_sys_attr *s_attr = container_of(attr,
269 struct mspro_sys_attr,
270 dev_attr);
271
272 ssize_t cnt, rc = 0;
273
274 for (cnt = 0; cnt < s_attr->size; cnt++) {
275 if (cnt && !(cnt % 16)) {
276 if (PAGE_SIZE - rc)
277 buffer[rc++] = '\n';
278 }
279
280 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "%02x ",
281 ((unsigned char *)s_attr->data)[cnt]);
282 }
283 return rc;
284}
285
286static ssize_t mspro_block_attr_show_sysinfo(struct device *dev,
287 struct device_attribute *attr,
288 char *buffer)
289{
290 struct mspro_sys_attr *x_attr = container_of(attr,
291 struct mspro_sys_attr,
292 dev_attr);
293 struct mspro_sys_info *x_sys = x_attr->data;
294 ssize_t rc = 0;
295
296 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "class: %x\n",
297 x_sys->class);
298 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "block size: %x\n",
299 be16_to_cpu(x_sys->block_size));
300 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "block count: %x\n",
301 be16_to_cpu(x_sys->block_count));
302 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "user block count: %x\n",
303 be16_to_cpu(x_sys->user_block_count));
304 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "page size: %x\n",
305 be16_to_cpu(x_sys->page_size));
306 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "assembly date: "
307 "%d %04u-%02u-%02u %02u:%02u:%02u\n",
308 x_sys->assembly_date[0],
309 be16_to_cpu(*(unsigned short *)
310 &x_sys->assembly_date[1]),
311 x_sys->assembly_date[3], x_sys->assembly_date[4],
312 x_sys->assembly_date[5], x_sys->assembly_date[6],
313 x_sys->assembly_date[7]);
314 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "serial number: %x\n",
315 be32_to_cpu(x_sys->serial_number));
316 rc += scnprintf(buffer + rc, PAGE_SIZE - rc,
317 "assembly maker code: %x\n",
318 x_sys->assembly_maker_code);
319 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "assembly model code: "
320 "%02x%02x%02x\n", x_sys->assembly_model_code[0],
321 x_sys->assembly_model_code[1],
322 x_sys->assembly_model_code[2]);
323 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "memory maker code: %x\n",
324 be16_to_cpu(x_sys->memory_maker_code));
325 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "memory model code: %x\n",
326 be16_to_cpu(x_sys->memory_model_code));
327 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "vcc: %x\n",
328 x_sys->vcc);
329 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "vpp: %x\n",
330 x_sys->vpp);
331 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "controller number: %x\n",
332 be16_to_cpu(x_sys->controller_number));
333 rc += scnprintf(buffer + rc, PAGE_SIZE - rc,
334 "controller function: %x\n",
335 be16_to_cpu(x_sys->controller_function));
336 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sector: %x\n",
337 be16_to_cpu(x_sys->start_sector));
338 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "unit size: %x\n",
339 be16_to_cpu(x_sys->unit_size));
340 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "sub class: %x\n",
341 x_sys->ms_sub_class);
342 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "interface type: %x\n",
343 x_sys->interface_type);
344 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "controller code: %x\n",
345 be16_to_cpu(x_sys->controller_code));
346 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "format type: %x\n",
347 x_sys->format_type);
348 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "device type: %x\n",
349 x_sys->device_type);
350 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "mspro id: %s\n",
351 x_sys->mspro_id);
352 return rc;
353}
354
355static ssize_t mspro_block_attr_show_modelname(struct device *dev,
356 struct device_attribute *attr,
357 char *buffer)
358{
359 struct mspro_sys_attr *s_attr = container_of(attr,
360 struct mspro_sys_attr,
361 dev_attr);
362
363 return scnprintf(buffer, PAGE_SIZE, "%s", (char *)s_attr->data);
364}
365
366static ssize_t mspro_block_attr_show_mbr(struct device *dev,
367 struct device_attribute *attr,
368 char *buffer)
369{
370 struct mspro_sys_attr *x_attr = container_of(attr,
371 struct mspro_sys_attr,
372 dev_attr);
373 struct mspro_mbr *x_mbr = x_attr->data;
374 ssize_t rc = 0;
375
376 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "boot partition: %x\n",
377 x_mbr->boot_partition);
378 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start head: %x\n",
379 x_mbr->start_head);
380 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sector: %x\n",
381 x_mbr->start_sector);
382 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start cylinder: %x\n",
383 x_mbr->start_cylinder);
384 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "partition type: %x\n",
385 x_mbr->partition_type);
386 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end head: %x\n",
387 x_mbr->end_head);
388 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end sector: %x\n",
389 x_mbr->end_sector);
390 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end cylinder: %x\n",
391 x_mbr->end_cylinder);
392 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sectors: %x\n",
393 x_mbr->start_sectors);
394 rc += scnprintf(buffer + rc, PAGE_SIZE - rc,
395 "sectors per partition: %x\n",
396 x_mbr->sectors_per_partition);
397 return rc;
398}
399
400static ssize_t mspro_block_attr_show_devinfo(struct device *dev,
401 struct device_attribute *attr,
402 char *buffer)
403{
404 struct mspro_sys_attr *x_attr = container_of(attr,
405 struct mspro_sys_attr,
406 dev_attr);
407 struct mspro_devinfo *x_devinfo = x_attr->data;
408 ssize_t rc = 0;
409
410 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "cylinders: %x\n",
411 be16_to_cpu(x_devinfo->cylinders));
412 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "heads: %x\n",
413 be16_to_cpu(x_devinfo->heads));
414 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "bytes per track: %x\n",
415 be16_to_cpu(x_devinfo->bytes_per_track));
416 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "bytes per sector: %x\n",
417 be16_to_cpu(x_devinfo->bytes_per_sector));
418 rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "sectors per track: %x\n",
419 be16_to_cpu(x_devinfo->sectors_per_track));
420 return rc;
421}
422
423static sysfs_show_t mspro_block_attr_show(unsigned char tag)
424{
425 switch (tag) {
426 case MSPRO_BLOCK_ID_SYSINFO:
427 return mspro_block_attr_show_sysinfo;
428 case MSPRO_BLOCK_ID_MODELNAME:
429 return mspro_block_attr_show_modelname;
430 case MSPRO_BLOCK_ID_MBR:
431 return mspro_block_attr_show_mbr;
432 case MSPRO_BLOCK_ID_DEVINFO:
433 return mspro_block_attr_show_devinfo;
434 default:
435 return mspro_block_attr_show_default;
436 }
437}
438
439/*** Protocol handlers ***/
440
441/*
442 * Functions prefixed with "h_" are protocol callbacks. They can be called from
443 * interrupt context. Return value of 0 means that request processing is still
444 * ongoing, while special error value of -EAGAIN means that current request is
445 * finished (and request processor should come back some time later).
446 */
447
448static int h_mspro_block_req_init(struct memstick_dev *card,
449 struct memstick_request **mrq)
450{
451 struct mspro_block_data *msb = memstick_get_drvdata(card);
452
453 *mrq = &card->current_mrq;
454 card->next_request = msb->mrq_handler;
455 return 0;
456}
457
458static int h_mspro_block_default(struct memstick_dev *card,
459 struct memstick_request **mrq)
460{
461 complete(&card->mrq_complete);
462 if (!(*mrq)->error)
463 return -EAGAIN;
464 else
465 return (*mrq)->error;
466}
467
468static int h_mspro_block_get_ro(struct memstick_dev *card,
469 struct memstick_request **mrq)
470{
471 struct mspro_block_data *msb = memstick_get_drvdata(card);
472
473 if ((*mrq)->error) {
474 complete(&card->mrq_complete);
475 return (*mrq)->error;
476 }
477
478 if ((*mrq)->data[offsetof(struct ms_status_register, status0)]
479 & MEMSTICK_STATUS0_WP)
480 msb->read_only = 1;
481 else
482 msb->read_only = 0;
483
484 complete(&card->mrq_complete);
485 return -EAGAIN;
486}
487
488static int h_mspro_block_wait_for_ced(struct memstick_dev *card,
489 struct memstick_request **mrq)
490{
491 if ((*mrq)->error) {
492 complete(&card->mrq_complete);
493 return (*mrq)->error;
494 }
495
496 dev_dbg(&card->dev, "wait for ced: value %x\n", (*mrq)->data[0]);
497
498 if ((*mrq)->data[0] & (MEMSTICK_INT_CMDNAK | MEMSTICK_INT_ERR)) {
499 card->current_mrq.error = -EFAULT;
500 complete(&card->mrq_complete);
501 return card->current_mrq.error;
502 }
503
504 if (!((*mrq)->data[0] & MEMSTICK_INT_CED))
505 return 0;
506 else {
507 card->current_mrq.error = 0;
508 complete(&card->mrq_complete);
509 return -EAGAIN;
510 }
511}
512
513static int h_mspro_block_transfer_data(struct memstick_dev *card,
514 struct memstick_request **mrq)
515{
516 struct memstick_host *host = card->host;
517 struct mspro_block_data *msb = memstick_get_drvdata(card);
518 unsigned char t_val = 0;
519 struct scatterlist t_sg = { 0 };
520 size_t t_offset;
521
522 if ((*mrq)->error) {
523 complete(&card->mrq_complete);
524 return (*mrq)->error;
525 }
526
527 switch ((*mrq)->tpc) {
528 case MS_TPC_WRITE_REG:
529 memstick_init_req(*mrq, MS_TPC_SET_CMD, &msb->transfer_cmd, 1);
530 (*mrq)->get_int_reg = 1;
531 return 0;
532 case MS_TPC_SET_CMD:
533 t_val = (*mrq)->int_reg;
534 memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1);
535 if (host->caps & MEMSTICK_CAP_AUTO_GET_INT)
536 goto has_int_reg;
537 return 0;
538 case MS_TPC_GET_INT:
539 t_val = (*mrq)->data[0];
540has_int_reg:
541 if (t_val & (MEMSTICK_INT_CMDNAK | MEMSTICK_INT_ERR)) {
542 t_val = MSPRO_CMD_STOP;
543 memstick_init_req(*mrq, MS_TPC_SET_CMD, &t_val, 1);
544 card->next_request = h_mspro_block_default;
545 return 0;
546 }
547
548 if (msb->current_page
549 == (msb->req_sg[msb->current_seg].length
550 / msb->page_size)) {
551 msb->current_page = 0;
552 msb->current_seg++;
553
554 if (msb->current_seg == msb->seg_count) {
555 if (t_val & MEMSTICK_INT_CED) {
556 complete(&card->mrq_complete);
557 return -EAGAIN;
558 } else {
559 card->next_request
560 = h_mspro_block_wait_for_ced;
561 memstick_init_req(*mrq, MS_TPC_GET_INT,
562 NULL, 1);
563 return 0;
564 }
565 }
566 }
567
568 if (!(t_val & MEMSTICK_INT_BREQ)) {
569 memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1);
570 return 0;
571 }
572
573 t_offset = msb->req_sg[msb->current_seg].offset;
574 t_offset += msb->current_page * msb->page_size;
575
576 sg_set_page(&t_sg,
577 nth_page(sg_page(&(msb->req_sg[msb->current_seg])),
578 t_offset >> PAGE_SHIFT),
579 msb->page_size, offset_in_page(t_offset));
580
581 memstick_init_req_sg(*mrq, msb->data_dir == READ
582 ? MS_TPC_READ_LONG_DATA
583 : MS_TPC_WRITE_LONG_DATA,
584 &t_sg);
585 (*mrq)->get_int_reg = 1;
586 return 0;
587 case MS_TPC_READ_LONG_DATA:
588 case MS_TPC_WRITE_LONG_DATA:
589 msb->current_page++;
590 if (host->caps & MEMSTICK_CAP_AUTO_GET_INT) {
591 t_val = (*mrq)->int_reg;
592 goto has_int_reg;
593 } else {
594 memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1);
595 return 0;
596 }
597
598 default:
599 BUG();
600 }
601}
602
603/*** Data transfer ***/
604
605static void mspro_block_process_request(struct memstick_dev *card,
606 struct request *req)
607{
608 struct mspro_block_data *msb = memstick_get_drvdata(card);
609 struct mspro_param_register param;
610 int rc, chunk, cnt;
611 unsigned short page_count;
612 sector_t t_sec;
613 unsigned long flags;
614
615 do {
616 page_count = 0;
617 msb->current_seg = 0;
618 msb->seg_count = blk_rq_map_sg(req->q, req, msb->req_sg);
619
620 if (msb->seg_count) {
621 msb->current_page = 0;
622 for (rc = 0; rc < msb->seg_count; rc++)
623 page_count += msb->req_sg[rc].length
624 / msb->page_size;
625
626 t_sec = req->sector;
627 sector_div(t_sec, msb->page_size >> 9);
628 param.system = msb->system;
629 param.data_count = cpu_to_be16(page_count);
630 param.data_address = cpu_to_be32((uint32_t)t_sec);
e1f19995 631 param.tpc_param = 0;
baf8532a
AD		 632
633 msb->data_dir = rq_data_dir(req);
634 msb->transfer_cmd = msb->data_dir == READ
635 ? MSPRO_CMD_READ_DATA
636 : MSPRO_CMD_WRITE_DATA;
637
638 dev_dbg(&card->dev, "data transfer: cmd %x, "
639 "lba %x, count %x\n", msb->transfer_cmd,
640 be32_to_cpu(param.data_address),
641 page_count);
642
643 card->next_request = h_mspro_block_req_init;
644 msb->mrq_handler = h_mspro_block_transfer_data;
645 memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG,
646 &param, sizeof(param));
647 memstick_new_req(card->host);
648 wait_for_completion(&card->mrq_complete);
649 rc = card->current_mrq.error;
650
651 if (rc || (card->current_mrq.tpc == MSPRO_CMD_STOP)) {
652 for (cnt = 0; cnt < msb->current_seg; cnt++)
653 page_count += msb->req_sg[cnt].length
654 / msb->page_size;
655
656 if (msb->current_page)
657 page_count += msb->current_page - 1;
658
659 if (page_count && (msb->data_dir == READ))
660 rc = msb->page_size * page_count;
661 else
662 rc = -EIO;
663 } else
664 rc = msb->page_size * page_count;
665 } else
666 rc = -EFAULT;
667
668 spin_lock_irqsave(&msb->q_lock, flags);
669 if (rc >= 0)
670 chunk = __blk_end_request(req, 0, rc);
671 else
672 chunk = __blk_end_request(req, rc, 0);
673
674 dev_dbg(&card->dev, "end chunk %d, %d\n", rc, chunk);
675 spin_unlock_irqrestore(&msb->q_lock, flags);
676 } while (chunk);
677}
678
679static int mspro_block_has_request(struct mspro_block_data *msb)
680{
681 int rc = 0;
682 unsigned long flags;
683
684 spin_lock_irqsave(&msb->q_lock, flags);
685 if (kthread_should_stop() || msb->has_request)
686 rc = 1;
687 spin_unlock_irqrestore(&msb->q_lock, flags);
688 return rc;
689}
690
691static int mspro_block_queue_thread(void *data)
692{
693 struct memstick_dev *card = data;
694 struct memstick_host *host = card->host;
695 struct mspro_block_data *msb = memstick_get_drvdata(card);
696 struct request *req;
697 unsigned long flags;
698
699 while (1) {
700 wait_event(msb->q_wait, mspro_block_has_request(msb));
701 dev_dbg(&card->dev, "thread iter\n");
702
703 spin_lock_irqsave(&msb->q_lock, flags);
704 req = elv_next_request(msb->queue);
705 dev_dbg(&card->dev, "next req %p\n", req);
706 if (!req) {
707 msb->has_request = 0;
708 if (kthread_should_stop()) {
709 spin_unlock_irqrestore(&msb->q_lock, flags);
710 break;
711 }
712 } else
713 msb->has_request = 1;
714 spin_unlock_irqrestore(&msb->q_lock, flags);
715
716 if (req) {
717 mutex_lock(&host->lock);
718 mspro_block_process_request(card, req);
719 mutex_unlock(&host->lock);
720 }
721 }
722 dev_dbg(&card->dev, "thread finished\n");
723 return 0;
724}
725
726static void mspro_block_request(struct request_queue *q)
727{
728 struct memstick_dev *card = q->queuedata;
729 struct mspro_block_data *msb = memstick_get_drvdata(card);
730 struct request *req = NULL;
731
732 if (msb->q_thread) {
733 msb->has_request = 1;
734 wake_up_all(&msb->q_wait);
735 } else {
736 while ((req = elv_next_request(q)) != NULL)
737 end_queued_request(req, -ENODEV);
738 }
739}
740
741/*** Initialization ***/
742
743static int mspro_block_wait_for_ced(struct memstick_dev *card)
744{
745 struct mspro_block_data *msb = memstick_get_drvdata(card);
746
747 card->next_request = h_mspro_block_req_init;
748 msb->mrq_handler = h_mspro_block_wait_for_ced;
749 memstick_init_req(&card->current_mrq, MS_TPC_GET_INT, NULL, 1);
750 memstick_new_req(card->host);
751 wait_for_completion(&card->mrq_complete);
752 return card->current_mrq.error;
753}
754
755static int mspro_block_switch_to_parallel(struct memstick_dev *card)
756{
757 struct memstick_host *host = card->host;
758 struct mspro_block_data *msb = memstick_get_drvdata(card);
759 struct mspro_param_register param = {
760 .system = 0,
761 .data_count = 0,
762 .data_address = 0,
e1f19995 763 .tpc_param = 0
baf8532a
AD		 764 };
765
766 card->next_request = h_mspro_block_req_init;
767 msb->mrq_handler = h_mspro_block_default;
768 memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, &param,
769 sizeof(param));
770 memstick_new_req(host);
771 wait_for_completion(&card->mrq_complete);
772 if (card->current_mrq.error)
773 return card->current_mrq.error;
774
e1f19995
AD		 775 msb->system = MEMSTICK_SYS_PAR4;
776 host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_PAR4);
baf8532a
AD		 777
778 card->next_request = h_mspro_block_req_init;
779 msb->mrq_handler = h_mspro_block_default;
780 memstick_init_req(&card->current_mrq, MS_TPC_GET_INT, NULL, 1);
781 memstick_new_req(card->host);
782 wait_for_completion(&card->mrq_complete);
783
784 if (card->current_mrq.error) {
785 msb->system = 0x80;
786 host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_SERIAL);
787 return -EFAULT;
788 }
789
790 return 0;
791}
792
793/* Memory allocated for attributes by this function should be freed by
794 * mspro_block_data_clear, no matter if the initialization process succeded
795 * or failed.
796 */
797static int mspro_block_read_attributes(struct memstick_dev *card)
798{
799 struct mspro_block_data *msb = memstick_get_drvdata(card);
800 struct mspro_param_register param = {
801 .system = msb->system,
802 .data_count = cpu_to_be16(1),
803 .data_address = 0,
e1f19995 804 .tpc_param = 0
baf8532a
AD		 805 };
806 struct mspro_attribute *attr = NULL;
807 struct mspro_sys_attr *s_attr = NULL;
808 unsigned char *buffer = NULL;
809 int cnt, rc, attr_count;
810 unsigned int addr;
811 unsigned short page_count;
812
813 attr = kmalloc(msb->page_size, GFP_KERNEL);
814 if (!attr)
815 return -ENOMEM;
816
817 sg_init_one(&msb->req_sg[0], attr, msb->page_size);
818 msb->seg_count = 1;
819 msb->current_seg = 0;
820 msb->current_page = 0;
821 msb->data_dir = READ;
822 msb->transfer_cmd = MSPRO_CMD_READ_ATRB;
823
824 card->next_request = h_mspro_block_req_init;
825 msb->mrq_handler = h_mspro_block_transfer_data;
826 memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, &param,
827 sizeof(param));
828 memstick_new_req(card->host);
829 wait_for_completion(&card->mrq_complete);
830 if (card->current_mrq.error) {
831 rc = card->current_mrq.error;
832 goto out_free_attr;
833 }
834
835 if (be16_to_cpu(attr->signature) != MSPRO_BLOCK_SIGNATURE) {
836 printk(KERN_ERR "%s: unrecognized device signature %x\n",
837 card->dev.bus_id, be16_to_cpu(attr->signature));
838 rc = -ENODEV;
839 goto out_free_attr;
840 }
841
842 if (attr->count > MSPRO_BLOCK_MAX_ATTRIBUTES) {
843 printk(KERN_WARNING "%s: way too many attribute entries\n",
844 card->dev.bus_id);
845 attr_count = MSPRO_BLOCK_MAX_ATTRIBUTES;
846 } else
847 attr_count = attr->count;
848
849 msb->attr_group.attrs = kzalloc((attr_count + 1)
850 * sizeof(struct attribute),
851 GFP_KERNEL);
852 if (!msb->attr_group.attrs) {
853 rc = -ENOMEM;
854 goto out_free_attr;
855 }
856 msb->attr_group.name = "media_attributes";
857
858 buffer = kmalloc(msb->page_size, GFP_KERNEL);
859 if (!buffer) {
860 rc = -ENOMEM;
861 goto out_free_attr;
862 }
863 memcpy(buffer, (char *)attr, msb->page_size);
864 page_count = 1;
865
866 for (cnt = 0; cnt < attr_count; ++cnt) {
867 s_attr = kzalloc(sizeof(struct mspro_sys_attr), GFP_KERNEL);
868 if (!s_attr) {
869 rc = -ENOMEM;
870 goto out_free_buffer;
871 }
872
873 msb->attr_group.attrs[cnt] = &s_attr->dev_attr.attr;
874 addr = be32_to_cpu(attr->entries[cnt].address);
875 rc = be32_to_cpu(attr->entries[cnt].size);
876 dev_dbg(&card->dev, "adding attribute %d: id %x, address %x, "
877 "size %x\n", cnt, attr->entries[cnt].id, addr, rc);
878 s_attr->id = attr->entries[cnt].id;
879 if (mspro_block_attr_name(s_attr->id))
880 snprintf(s_attr->name, sizeof(s_attr->name), "%s",
881 mspro_block_attr_name(attr->entries[cnt].id));
882 else
883 snprintf(s_attr->name, sizeof(s_attr->name),
884 "attr_x%02x", attr->entries[cnt].id);
885
886 s_attr->dev_attr.attr.name = s_attr->name;
887 s_attr->dev_attr.attr.mode = S_IRUGO;
888 s_attr->dev_attr.attr.owner = THIS_MODULE;
889 s_attr->dev_attr.show = mspro_block_attr_show(s_attr->id);
890
891 if (!rc)
892 continue;
893
894 s_attr->size = rc;
895 s_attr->data = kmalloc(rc, GFP_KERNEL);
896 if (!s_attr->data) {
897 rc = -ENOMEM;
898 goto out_free_buffer;
899 }
900
901 if (((addr / msb->page_size)
902 == be32_to_cpu(param.data_address))
903 && (((addr + rc - 1) / msb->page_size)
904 == be32_to_cpu(param.data_address))) {
905 memcpy(s_attr->data, buffer + addr % msb->page_size,
906 rc);
907 continue;
908 }
909
910 if (page_count <= (rc / msb->page_size)) {
911 kfree(buffer);
912 page_count = (rc / msb->page_size) + 1;
913 buffer = kmalloc(page_count * msb->page_size,
914 GFP_KERNEL);
915 if (!buffer) {
916 rc = -ENOMEM;
917 goto out_free_attr;
918 }
919 }
920
921 param.system = msb->system;
922 param.data_count = cpu_to_be16((rc / msb->page_size) + 1);
923 param.data_address = cpu_to_be32(addr / msb->page_size);
e1f19995 924 param.tpc_param = 0;
baf8532a
AD		 925
926 sg_init_one(&msb->req_sg[0], buffer,
927 be16_to_cpu(param.data_count) * msb->page_size);
928 msb->seg_count = 1;
929 msb->current_seg = 0;
930 msb->current_page = 0;
931 msb->data_dir = READ;
932 msb->transfer_cmd = MSPRO_CMD_READ_ATRB;
933
934 dev_dbg(&card->dev, "reading attribute pages %x, %x\n",
935 be32_to_cpu(param.data_address),
936 be16_to_cpu(param.data_count));
937
938 card->next_request = h_mspro_block_req_init;
939 msb->mrq_handler = h_mspro_block_transfer_data;
940 memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG,
941 (char *)&param, sizeof(param));
942 memstick_new_req(card->host);
943 wait_for_completion(&card->mrq_complete);
944 if (card->current_mrq.error) {
945 rc = card->current_mrq.error;
946 goto out_free_buffer;
947 }
948
949 memcpy(s_attr->data, buffer + addr % msb->page_size, rc);
950 }
951
952 rc = 0;
953out_free_buffer:
954 kfree(buffer);
955out_free_attr:
956 kfree(attr);
957 return rc;
958}
959
960static int mspro_block_init_card(struct memstick_dev *card)
961{
962 struct mspro_block_data *msb = memstick_get_drvdata(card);
963 struct memstick_host *host = card->host;
964 int rc = 0;
965
e1f19995 966 msb->system = MEMSTICK_SYS_SERIAL;
baf8532a
AD		 967 card->reg_addr.r_offset = offsetof(struct mspro_register, status);
968 card->reg_addr.r_length = sizeof(struct ms_status_register);
969 card->reg_addr.w_offset = offsetof(struct mspro_register, param);
970 card->reg_addr.w_length = sizeof(struct mspro_param_register);
971
972 if (memstick_set_rw_addr(card))
973 return -EIO;
974
e1f19995 975 if (host->caps & MEMSTICK_CAP_PAR4) {
baf8532a
AD		 976 if (mspro_block_switch_to_parallel(card))
977 printk(KERN_WARNING "%s: could not switch to "
978 "parallel interface\n", card->dev.bus_id);
979 }
980
981 rc = mspro_block_wait_for_ced(card);
982 if (rc)
983 return rc;
984 dev_dbg(&card->dev, "card activated\n");
985
986 card->next_request = h_mspro_block_req_init;
987 msb->mrq_handler = h_mspro_block_get_ro;
988 memstick_init_req(&card->current_mrq, MS_TPC_READ_REG, NULL,
989 sizeof(struct ms_status_register));
990 memstick_new_req(card->host);
991 wait_for_completion(&card->mrq_complete);
992 if (card->current_mrq.error)
993 return card->current_mrq.error;
994
995 dev_dbg(&card->dev, "card r/w status %d\n", msb->read_only ? 0 : 1);
996
997 msb->page_size = 512;
998 rc = mspro_block_read_attributes(card);
999 if (rc)
1000 return rc;
1001
1002 dev_dbg(&card->dev, "attributes loaded\n");
1003 return 0;
1004
1005}
1006
1007static int mspro_block_init_disk(struct memstick_dev *card)
1008{
1009 struct mspro_block_data *msb = memstick_get_drvdata(card);
1010 struct memstick_host *host = card->host;
1011 struct mspro_devinfo *dev_info = NULL;
1012 struct mspro_sys_info *sys_info = NULL;
1013 struct mspro_sys_attr *s_attr = NULL;
1014 int rc, disk_id;
1015 u64 limit = BLK_BOUNCE_HIGH;
1016 unsigned long capacity;
1017
1018 if (host->cdev.dev->dma_mask && *(host->cdev.dev->dma_mask))
1019 limit = *(host->cdev.dev->dma_mask);
1020
1021 for (rc = 0; msb->attr_group.attrs[rc]; ++rc) {
1022 s_attr = mspro_from_sysfs_attr(msb->attr_group.attrs[rc]);
1023
1024 if (s_attr->id == MSPRO_BLOCK_ID_DEVINFO)
1025 dev_info = s_attr->data;
1026 else if (s_attr->id == MSPRO_BLOCK_ID_SYSINFO)
1027 sys_info = s_attr->data;
1028 }
1029
1030 if (!dev_info || !sys_info)
1031 return -ENODEV;
1032
1033 msb->cylinders = be16_to_cpu(dev_info->cylinders);
1034 msb->heads = be16_to_cpu(dev_info->heads);
1035 msb->sectors_per_track = be16_to_cpu(dev_info->sectors_per_track);
1036
1037 msb->page_size = be16_to_cpu(sys_info->unit_size);
1038
1039 if (!idr_pre_get(&mspro_block_disk_idr, GFP_KERNEL))
1040 return -ENOMEM;
1041
1042 mutex_lock(&mspro_block_disk_lock);
1043 rc = idr_get_new(&mspro_block_disk_idr, card, &disk_id);
1044 mutex_unlock(&mspro_block_disk_lock);
1045
1046 if (rc)
1047 return rc;
1048
1049 if ((disk_id << MEMSTICK_PART_SHIFT) > 255) {
1050 rc = -ENOSPC;
1051 goto out_release_id;
1052 }
1053
1054 msb->disk = alloc_disk(1 << MEMSTICK_PART_SHIFT);
1055 if (!msb->disk) {
1056 rc = -ENOMEM;
1057 goto out_release_id;
1058 }
1059
1060 spin_lock_init(&msb->q_lock);
1061 init_waitqueue_head(&msb->q_wait);
1062
1063 msb->queue = blk_init_queue(mspro_block_request, &msb->q_lock);
1064 if (!msb->queue) {
1065 rc = -ENOMEM;
1066 goto out_put_disk;
1067 }
1068
1069 msb->queue->queuedata = card;
1070
1071 blk_queue_bounce_limit(msb->queue, limit);
1072 blk_queue_max_sectors(msb->queue, MSPRO_BLOCK_MAX_PAGES);
1073 blk_queue_max_phys_segments(msb->queue, MSPRO_BLOCK_MAX_SEGS);
1074 blk_queue_max_hw_segments(msb->queue, MSPRO_BLOCK_MAX_SEGS);
1075 blk_queue_max_segment_size(msb->queue,
1076 MSPRO_BLOCK_MAX_PAGES * msb->page_size);
1077
1078 msb->disk->major = major;
1079 msb->disk->first_minor = disk_id << MEMSTICK_PART_SHIFT;
1080 msb->disk->fops = &ms_block_bdops;
1081 msb->usage_count = 1;
1082 msb->disk->private_data = msb;
1083 msb->disk->queue = msb->queue;
1084 msb->disk->driverfs_dev = &card->dev;
1085
1086 sprintf(msb->disk->disk_name, "mspblk%d", disk_id);
1087
1088 blk_queue_hardsect_size(msb->queue, msb->page_size);
1089
1090 capacity = be16_to_cpu(sys_info->user_block_count);
1091 capacity *= be16_to_cpu(sys_info->block_size);
1092 capacity *= msb->page_size >> 9;
1093 set_capacity(msb->disk, capacity);
1094 dev_dbg(&card->dev, "capacity set %ld\n", capacity);
1095 msb->q_thread = kthread_run(mspro_block_queue_thread, card,
1096 DRIVER_NAME"d");
1097 if (IS_ERR(msb->q_thread))
1098 goto out_put_disk;
1099
1100 mutex_unlock(&host->lock);
1101 add_disk(msb->disk);
1102 mutex_lock(&host->lock);
1103 msb->active = 1;
1104 return 0;
1105
1106out_put_disk:
1107 put_disk(msb->disk);
1108out_release_id:
1109 mutex_lock(&mspro_block_disk_lock);
1110 idr_remove(&mspro_block_disk_idr, disk_id);
1111 mutex_unlock(&mspro_block_disk_lock);
1112 return rc;
1113}
1114
1115static void mspro_block_data_clear(struct mspro_block_data *msb)
1116{
1117 int cnt;
1118 struct mspro_sys_attr *s_attr;
1119
1120 if (msb->attr_group.attrs) {
1121 for (cnt = 0; msb->attr_group.attrs[cnt]; ++cnt) {
1122 s_attr = mspro_from_sysfs_attr(msb->attr_group
1123 .attrs[cnt]);
1124 kfree(s_attr->data);
1125 kfree(s_attr);
1126 }
1127 kfree(msb->attr_group.attrs);
1128 }
1129
1130 msb->card = NULL;
1131}
1132
1133static int mspro_block_check_card(struct memstick_dev *card)
1134{
1135 struct mspro_block_data *msb = memstick_get_drvdata(card);
1136
1137 return (msb->active == 1);
1138}
1139
1140static int mspro_block_probe(struct memstick_dev *card)
1141{
1142 struct mspro_block_data *msb;
1143 int rc = 0;
1144
1145 msb = kzalloc(sizeof(struct mspro_block_data), GFP_KERNEL);
1146 if (!msb)
1147 return -ENOMEM;
1148 memstick_set_drvdata(card, msb);
1149 msb->card = card;
1150
1151 rc = mspro_block_init_card(card);
1152
1153 if (rc)
1154 goto out_free;
1155
1156 rc = sysfs_create_group(&card->dev.kobj, &msb->attr_group);
1157 if (rc)
1158 goto out_free;
1159
1160 rc = mspro_block_init_disk(card);
1161 if (!rc) {
1162 card->check = mspro_block_check_card;
1163 return 0;
1164 }
1165
1166 sysfs_remove_group(&card->dev.kobj, &msb->attr_group);
1167out_free:
1168 memstick_set_drvdata(card, NULL);
1169 mspro_block_data_clear(msb);
1170 kfree(msb);
1171 return rc;
1172}
1173
1174static void mspro_block_remove(struct memstick_dev *card)
1175{
1176 struct mspro_block_data *msb = memstick_get_drvdata(card);
1177 struct task_struct *q_thread = NULL;
1178 unsigned long flags;
1179
1180 del_gendisk(msb->disk);
1181 dev_dbg(&card->dev, "mspro block remove\n");
1182 spin_lock_irqsave(&msb->q_lock, flags);
1183 q_thread = msb->q_thread;
1184 msb->q_thread = NULL;
1185 msb->active = 0;
1186 spin_unlock_irqrestore(&msb->q_lock, flags);
1187
1188 if (q_thread) {
1189 mutex_unlock(&card->host->lock);
1190 kthread_stop(q_thread);
1191 mutex_lock(&card->host->lock);
1192 }
1193
1194 dev_dbg(&card->dev, "queue thread stopped\n");
1195
1196 blk_cleanup_queue(msb->queue);
1197
1198 sysfs_remove_group(&card->dev.kobj, &msb->attr_group);
1199
1200 mutex_lock(&mspro_block_disk_lock);
1201 mspro_block_data_clear(msb);
1202 mutex_unlock(&mspro_block_disk_lock);
1203
1204 mspro_block_disk_release(msb->disk);
1205 memstick_set_drvdata(card, NULL);
1206}
1207
1208#ifdef CONFIG_PM
1209
1210static int mspro_block_suspend(struct memstick_dev *card, pm_message_t state)
1211{
1212 struct mspro_block_data *msb = memstick_get_drvdata(card);
1213 struct task_struct *q_thread = NULL;
1214 unsigned long flags;
1215
1216 spin_lock_irqsave(&msb->q_lock, flags);
1217 q_thread = msb->q_thread;
1218 msb->q_thread = NULL;
1219 msb->active = 0;
1220 blk_stop_queue(msb->queue);
1221 spin_unlock_irqrestore(&msb->q_lock, flags);
1222
1223 if (q_thread)
1224 kthread_stop(q_thread);
1225
1226 return 0;
1227}
1228
1229static int mspro_block_resume(struct memstick_dev *card)
1230{
1231 struct mspro_block_data *msb = memstick_get_drvdata(card);
1232 unsigned long flags;
1233 int rc = 0;
1234
1235#ifdef CONFIG_MEMSTICK_UNSAFE_RESUME
1236
1237 struct mspro_block_data *new_msb;
1238 struct memstick_host *host = card->host;
1239 struct mspro_sys_attr *s_attr, *r_attr;
1240 unsigned char cnt;
1241
1242 mutex_lock(&host->lock);
1243 new_msb = kzalloc(sizeof(struct mspro_block_data), GFP_KERNEL);
1244 if (!new_msb) {
1245 rc = -ENOMEM;
1246 goto out_unlock;
1247 }
1248
1249 new_msb->card = card;
1250 memstick_set_drvdata(card, new_msb);
1251 if (mspro_block_init_card(card))
1252 goto out_free;
1253
1254 for (cnt = 0; new_msb->attr_group.attrs[cnt]
1255 && msb->attr_group.attrs[cnt]; ++cnt) {
1256 s_attr = mspro_from_sysfs_attr(new_msb->attr_group.attrs[cnt]);
1257 r_attr = mspro_from_sysfs_attr(msb->attr_group.attrs[cnt]);
1258
1259 if (s_attr->id == MSPRO_BLOCK_ID_SYSINFO
1260 && r_attr->id == s_attr->id) {
1261 if (memcmp(s_attr->data, r_attr->data, s_attr->size))
1262 break;
1263
1264 memstick_set_drvdata(card, msb);
1265 msb->q_thread = kthread_run(mspro_block_queue_thread,
1266 card, DRIVER_NAME"d");
1267 if (IS_ERR(msb->q_thread))
1268 msb->q_thread = NULL;
1269 else
1270 msb->active = 1;
1271
1272 break;
1273 }
1274 }
1275
1276out_free:
1277 memstick_set_drvdata(card, msb);
1278 mspro_block_data_clear(new_msb);
1279 kfree(new_msb);
1280out_unlock:
1281 mutex_unlock(&host->lock);
1282
1283#endif /* CONFIG_MEMSTICK_UNSAFE_RESUME */
1284
1285 spin_lock_irqsave(&msb->q_lock, flags);
1286 blk_start_queue(msb->queue);
1287 spin_unlock_irqrestore(&msb->q_lock, flags);
1288 return rc;
1289}
1290
1291#else
1292
1293#define mspro_block_suspend NULL
1294#define mspro_block_resume NULL
1295
1296#endif /* CONFIG_PM */
1297
1298static struct memstick_device_id mspro_block_id_tbl[] = {
1299 {MEMSTICK_MATCH_ALL, MEMSTICK_TYPE_PRO, MEMSTICK_CATEGORY_STORAGE_DUO,
1300 MEMSTICK_CLASS_GENERIC_DUO},
1301 {}
1302};
1303
1304
1305static struct memstick_driver mspro_block_driver = {
1306 .driver = {
1307 .name = DRIVER_NAME,
1308 .owner = THIS_MODULE
1309 },
1310 .id_table = mspro_block_id_tbl,
1311 .probe = mspro_block_probe,
1312 .remove = mspro_block_remove,
1313 .suspend = mspro_block_suspend,
1314 .resume = mspro_block_resume
1315};
1316
1317static int __init mspro_block_init(void)
1318{
1319 int rc = -ENOMEM;
1320
1321 rc = register_blkdev(major, DRIVER_NAME);
1322 if (rc < 0) {
1323 printk(KERN_ERR DRIVER_NAME ": failed to register "
1324 "major %d, error %d\n", major, rc);
1325 return rc;
1326 }
1327 if (!major)
1328 major = rc;
1329
1330 rc = memstick_register_driver(&mspro_block_driver);
1331 if (rc)
1332 unregister_blkdev(major, DRIVER_NAME);
1333 return rc;
1334}
1335
1336static void __exit mspro_block_exit(void)
1337{
1338 memstick_unregister_driver(&mspro_block_driver);
1339 unregister_blkdev(major, DRIVER_NAME);
1340 idr_destroy(&mspro_block_disk_idr);
1341}
1342
1343module_init(mspro_block_init);
1344module_exit(mspro_block_exit);
1345
1346MODULE_LICENSE("GPL");
1347MODULE_AUTHOR("Alex Dubov");
1348MODULE_DESCRIPTION("Sony MemoryStickPro block device driver");
1349MODULE_DEVICE_TABLE(memstick, mspro_block_id_tbl);
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