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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> | |
59367258 | 19 | #include <linux/delay.h> |
baf8532a AD |
20 | #include <linux/memstick.h> |
21 | ||
22 | #define DRIVER_NAME "mspro_block" | |
baf8532a AD |
23 | |
24 | static int major; | |
25 | module_param(major, int, 0644); | |
26 | ||
27 | #define MSPRO_BLOCK_MAX_SEGS 32 | |
28 | #define MSPRO_BLOCK_MAX_PAGES ((2 << 16) - 1) | |
29 | ||
30 | #define MSPRO_BLOCK_SIGNATURE 0xa5c3 | |
31 | #define MSPRO_BLOCK_MAX_ATTRIBUTES 41 | |
32 | ||
8e82f8c3 AD |
33 | #define MSPRO_BLOCK_PART_SHIFT 3 |
34 | ||
baf8532a AD |
35 | enum { |
36 | MSPRO_BLOCK_ID_SYSINFO = 0x10, | |
37 | MSPRO_BLOCK_ID_MODELNAME = 0x15, | |
38 | MSPRO_BLOCK_ID_MBR = 0x20, | |
39 | MSPRO_BLOCK_ID_PBR16 = 0x21, | |
40 | MSPRO_BLOCK_ID_PBR32 = 0x22, | |
41 | MSPRO_BLOCK_ID_SPECFILEVALUES1 = 0x25, | |
42 | MSPRO_BLOCK_ID_SPECFILEVALUES2 = 0x26, | |
43 | MSPRO_BLOCK_ID_DEVINFO = 0x30 | |
44 | }; | |
45 | ||
46 | struct mspro_sys_attr { | |
47 | size_t size; | |
48 | void *data; | |
49 | unsigned char id; | |
50 | char name[32]; | |
51 | struct device_attribute dev_attr; | |
52 | }; | |
53 | ||
54 | struct mspro_attr_entry { | |
55 | unsigned int address; | |
56 | unsigned int size; | |
57 | unsigned char id; | |
58 | unsigned char reserved[3]; | |
59 | } __attribute__((packed)); | |
60 | ||
61 | struct mspro_attribute { | |
62 | unsigned short signature; | |
63 | unsigned short version; | |
64 | unsigned char count; | |
65 | unsigned char reserved[11]; | |
66 | struct mspro_attr_entry entries[]; | |
67 | } __attribute__((packed)); | |
68 | ||
69 | struct mspro_sys_info { | |
70 | unsigned char class; | |
71 | unsigned char reserved0; | |
72 | unsigned short block_size; | |
73 | unsigned short block_count; | |
74 | unsigned short user_block_count; | |
75 | unsigned short page_size; | |
76 | unsigned char reserved1[2]; | |
77 | unsigned char assembly_date[8]; | |
78 | unsigned int serial_number; | |
79 | unsigned char assembly_maker_code; | |
80 | unsigned char assembly_model_code[3]; | |
81 | unsigned short memory_maker_code; | |
82 | unsigned short memory_model_code; | |
83 | unsigned char reserved2[4]; | |
84 | unsigned char vcc; | |
85 | unsigned char vpp; | |
86 | unsigned short controller_number; | |
87 | unsigned short controller_function; | |
88 | unsigned short start_sector; | |
89 | unsigned short unit_size; | |
90 | unsigned char ms_sub_class; | |
91 | unsigned char reserved3[4]; | |
92 | unsigned char interface_type; | |
93 | unsigned short controller_code; | |
94 | unsigned char format_type; | |
95 | unsigned char reserved4; | |
96 | unsigned char device_type; | |
97 | unsigned char reserved5[7]; | |
98 | unsigned char mspro_id[16]; | |
99 | unsigned char reserved6[16]; | |
100 | } __attribute__((packed)); | |
101 | ||
102 | struct mspro_mbr { | |
103 | unsigned char boot_partition; | |
104 | unsigned char start_head; | |
105 | unsigned char start_sector; | |
106 | unsigned char start_cylinder; | |
107 | unsigned char partition_type; | |
108 | unsigned char end_head; | |
109 | unsigned char end_sector; | |
110 | unsigned char end_cylinder; | |
111 | unsigned int start_sectors; | |
112 | unsigned int sectors_per_partition; | |
113 | } __attribute__((packed)); | |
114 | ||
efb2742e AD |
115 | struct mspro_specfile { |
116 | char name[8]; | |
117 | char ext[3]; | |
118 | unsigned char attr; | |
119 | unsigned char reserved[10]; | |
120 | unsigned short time; | |
121 | unsigned short date; | |
122 | unsigned short cluster; | |
123 | unsigned int size; | |
124 | } __attribute__((packed)); | |
125 | ||
baf8532a AD |
126 | struct mspro_devinfo { |
127 | unsigned short cylinders; | |
128 | unsigned short heads; | |
129 | unsigned short bytes_per_track; | |
130 | unsigned short bytes_per_sector; | |
131 | unsigned short sectors_per_track; | |
132 | unsigned char reserved[6]; | |
133 | } __attribute__((packed)); | |
134 | ||
135 | struct mspro_block_data { | |
136 | struct memstick_dev *card; | |
137 | unsigned int usage_count; | |
ead70773 | 138 | unsigned int caps; |
baf8532a AD |
139 | struct gendisk *disk; |
140 | struct request_queue *queue; | |
f1d82698 | 141 | struct request *block_req; |
baf8532a | 142 | spinlock_t q_lock; |
baf8532a AD |
143 | |
144 | unsigned short page_size; | |
145 | unsigned short cylinders; | |
146 | unsigned short heads; | |
147 | unsigned short sectors_per_track; | |
148 | ||
149 | unsigned char system; | |
150 | unsigned char read_only:1, | |
f1d82698 | 151 | eject:1, |
baf8532a | 152 | has_request:1, |
f1d82698 AD |
153 | data_dir:1, |
154 | active:1; | |
baf8532a AD |
155 | unsigned char transfer_cmd; |
156 | ||
157 | int (*mrq_handler)(struct memstick_dev *card, | |
158 | struct memstick_request **mrq); | |
159 | ||
160 | struct attribute_group attr_group; | |
161 | ||
162 | struct scatterlist req_sg[MSPRO_BLOCK_MAX_SEGS]; | |
163 | unsigned int seg_count; | |
164 | unsigned int current_seg; | |
f1d82698 | 165 | unsigned int current_page; |
baf8532a AD |
166 | }; |
167 | ||
168 | static DEFINE_IDR(mspro_block_disk_idr); | |
169 | static DEFINE_MUTEX(mspro_block_disk_lock); | |
170 | ||
f1d82698 AD |
171 | static int mspro_block_complete_req(struct memstick_dev *card, int error); |
172 | ||
baf8532a AD |
173 | /*** Block device ***/ |
174 | ||
5d9a54b6 | 175 | static int mspro_block_bd_open(struct block_device *bdev, fmode_t mode) |
baf8532a | 176 | { |
5d9a54b6 | 177 | struct gendisk *disk = bdev->bd_disk; |
baf8532a AD |
178 | struct mspro_block_data *msb = disk->private_data; |
179 | int rc = -ENXIO; | |
180 | ||
181 | mutex_lock(&mspro_block_disk_lock); | |
182 | ||
183 | if (msb && msb->card) { | |
184 | msb->usage_count++; | |
5d9a54b6 | 185 | if ((mode & FMODE_WRITE) && msb->read_only) |
baf8532a AD |
186 | rc = -EROFS; |
187 | else | |
188 | rc = 0; | |
189 | } | |
190 | ||
191 | mutex_unlock(&mspro_block_disk_lock); | |
192 | ||
193 | return rc; | |
194 | } | |
195 | ||
196 | ||
197 | static int mspro_block_disk_release(struct gendisk *disk) | |
198 | { | |
199 | struct mspro_block_data *msb = disk->private_data; | |
f331c029 | 200 | int disk_id = MINOR(disk_devt(disk)) >> MSPRO_BLOCK_PART_SHIFT; |
baf8532a AD |
201 | |
202 | mutex_lock(&mspro_block_disk_lock); | |
203 | ||
f1d82698 AD |
204 | if (msb) { |
205 | if (msb->usage_count) | |
206 | msb->usage_count--; | |
207 | ||
baf8532a AD |
208 | if (!msb->usage_count) { |
209 | kfree(msb); | |
210 | disk->private_data = NULL; | |
211 | idr_remove(&mspro_block_disk_idr, disk_id); | |
212 | put_disk(disk); | |
213 | } | |
214 | } | |
215 | ||
216 | mutex_unlock(&mspro_block_disk_lock); | |
217 | ||
218 | return 0; | |
219 | } | |
220 | ||
5d9a54b6 | 221 | static int mspro_block_bd_release(struct gendisk *disk, fmode_t mode) |
baf8532a | 222 | { |
baf8532a AD |
223 | return mspro_block_disk_release(disk); |
224 | } | |
225 | ||
226 | static int mspro_block_bd_getgeo(struct block_device *bdev, | |
227 | struct hd_geometry *geo) | |
228 | { | |
229 | struct mspro_block_data *msb = bdev->bd_disk->private_data; | |
230 | ||
231 | geo->heads = msb->heads; | |
232 | geo->sectors = msb->sectors_per_track; | |
233 | geo->cylinders = msb->cylinders; | |
234 | ||
235 | return 0; | |
236 | } | |
237 | ||
238 | static struct block_device_operations ms_block_bdops = { | |
5d9a54b6 AV |
239 | .open = mspro_block_bd_open, |
240 | .release = mspro_block_bd_release, | |
baf8532a AD |
241 | .getgeo = mspro_block_bd_getgeo, |
242 | .owner = THIS_MODULE | |
243 | }; | |
244 | ||
245 | /*** Information ***/ | |
246 | ||
247 | static struct mspro_sys_attr *mspro_from_sysfs_attr(struct attribute *attr) | |
248 | { | |
249 | struct device_attribute *dev_attr | |
250 | = container_of(attr, struct device_attribute, attr); | |
251 | return container_of(dev_attr, struct mspro_sys_attr, dev_attr); | |
252 | } | |
253 | ||
254 | static const char *mspro_block_attr_name(unsigned char tag) | |
255 | { | |
256 | switch (tag) { | |
257 | case MSPRO_BLOCK_ID_SYSINFO: | |
258 | return "attr_sysinfo"; | |
259 | case MSPRO_BLOCK_ID_MODELNAME: | |
260 | return "attr_modelname"; | |
261 | case MSPRO_BLOCK_ID_MBR: | |
262 | return "attr_mbr"; | |
263 | case MSPRO_BLOCK_ID_PBR16: | |
264 | return "attr_pbr16"; | |
265 | case MSPRO_BLOCK_ID_PBR32: | |
266 | return "attr_pbr32"; | |
267 | case MSPRO_BLOCK_ID_SPECFILEVALUES1: | |
268 | return "attr_specfilevalues1"; | |
269 | case MSPRO_BLOCK_ID_SPECFILEVALUES2: | |
270 | return "attr_specfilevalues2"; | |
271 | case MSPRO_BLOCK_ID_DEVINFO: | |
272 | return "attr_devinfo"; | |
273 | default: | |
274 | return NULL; | |
275 | }; | |
276 | } | |
277 | ||
278 | typedef ssize_t (*sysfs_show_t)(struct device *dev, | |
279 | struct device_attribute *attr, | |
280 | char *buffer); | |
281 | ||
282 | static ssize_t mspro_block_attr_show_default(struct device *dev, | |
283 | struct device_attribute *attr, | |
284 | char *buffer) | |
285 | { | |
286 | struct mspro_sys_attr *s_attr = container_of(attr, | |
287 | struct mspro_sys_attr, | |
288 | dev_attr); | |
289 | ||
290 | ssize_t cnt, rc = 0; | |
291 | ||
292 | for (cnt = 0; cnt < s_attr->size; cnt++) { | |
293 | if (cnt && !(cnt % 16)) { | |
294 | if (PAGE_SIZE - rc) | |
295 | buffer[rc++] = '\n'; | |
296 | } | |
297 | ||
298 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "%02x ", | |
299 | ((unsigned char *)s_attr->data)[cnt]); | |
300 | } | |
301 | return rc; | |
302 | } | |
303 | ||
304 | static ssize_t mspro_block_attr_show_sysinfo(struct device *dev, | |
305 | struct device_attribute *attr, | |
306 | char *buffer) | |
307 | { | |
308 | struct mspro_sys_attr *x_attr = container_of(attr, | |
309 | struct mspro_sys_attr, | |
310 | dev_attr); | |
311 | struct mspro_sys_info *x_sys = x_attr->data; | |
312 | ssize_t rc = 0; | |
251cc9b9 AD |
313 | int date_tz = 0, date_tz_f = 0; |
314 | ||
315 | if (x_sys->assembly_date[0] > 0x80U) { | |
316 | date_tz = (~x_sys->assembly_date[0]) + 1; | |
317 | date_tz_f = date_tz & 3; | |
318 | date_tz >>= 2; | |
319 | date_tz = -date_tz; | |
320 | date_tz_f *= 15; | |
321 | } else if (x_sys->assembly_date[0] < 0x80U) { | |
322 | date_tz = x_sys->assembly_date[0]; | |
323 | date_tz_f = date_tz & 3; | |
324 | date_tz >>= 2; | |
325 | date_tz_f *= 15; | |
326 | } | |
baf8532a AD |
327 | |
328 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "class: %x\n", | |
329 | x_sys->class); | |
330 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "block size: %x\n", | |
331 | be16_to_cpu(x_sys->block_size)); | |
332 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "block count: %x\n", | |
333 | be16_to_cpu(x_sys->block_count)); | |
334 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "user block count: %x\n", | |
335 | be16_to_cpu(x_sys->user_block_count)); | |
336 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "page size: %x\n", | |
337 | be16_to_cpu(x_sys->page_size)); | |
338 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "assembly date: " | |
251cc9b9 AD |
339 | "GMT%+d:%d %04u-%02u-%02u %02u:%02u:%02u\n", |
340 | date_tz, date_tz_f, | |
baf8532a AD |
341 | be16_to_cpu(*(unsigned short *) |
342 | &x_sys->assembly_date[1]), | |
343 | x_sys->assembly_date[3], x_sys->assembly_date[4], | |
344 | x_sys->assembly_date[5], x_sys->assembly_date[6], | |
345 | x_sys->assembly_date[7]); | |
346 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "serial number: %x\n", | |
347 | be32_to_cpu(x_sys->serial_number)); | |
348 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, | |
349 | "assembly maker code: %x\n", | |
350 | x_sys->assembly_maker_code); | |
351 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "assembly model code: " | |
352 | "%02x%02x%02x\n", x_sys->assembly_model_code[0], | |
353 | x_sys->assembly_model_code[1], | |
354 | x_sys->assembly_model_code[2]); | |
355 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "memory maker code: %x\n", | |
356 | be16_to_cpu(x_sys->memory_maker_code)); | |
357 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "memory model code: %x\n", | |
358 | be16_to_cpu(x_sys->memory_model_code)); | |
359 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "vcc: %x\n", | |
360 | x_sys->vcc); | |
361 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "vpp: %x\n", | |
362 | x_sys->vpp); | |
363 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "controller number: %x\n", | |
364 | be16_to_cpu(x_sys->controller_number)); | |
365 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, | |
366 | "controller function: %x\n", | |
367 | be16_to_cpu(x_sys->controller_function)); | |
368 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sector: %x\n", | |
369 | be16_to_cpu(x_sys->start_sector)); | |
370 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "unit size: %x\n", | |
371 | be16_to_cpu(x_sys->unit_size)); | |
372 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "sub class: %x\n", | |
373 | x_sys->ms_sub_class); | |
374 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "interface type: %x\n", | |
375 | x_sys->interface_type); | |
376 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "controller code: %x\n", | |
377 | be16_to_cpu(x_sys->controller_code)); | |
378 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "format type: %x\n", | |
379 | x_sys->format_type); | |
380 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "device type: %x\n", | |
381 | x_sys->device_type); | |
382 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "mspro id: %s\n", | |
383 | x_sys->mspro_id); | |
384 | return rc; | |
385 | } | |
386 | ||
387 | static ssize_t mspro_block_attr_show_modelname(struct device *dev, | |
388 | struct device_attribute *attr, | |
389 | char *buffer) | |
390 | { | |
391 | struct mspro_sys_attr *s_attr = container_of(attr, | |
392 | struct mspro_sys_attr, | |
393 | dev_attr); | |
394 | ||
395 | return scnprintf(buffer, PAGE_SIZE, "%s", (char *)s_attr->data); | |
396 | } | |
397 | ||
398 | static ssize_t mspro_block_attr_show_mbr(struct device *dev, | |
399 | struct device_attribute *attr, | |
400 | char *buffer) | |
401 | { | |
402 | struct mspro_sys_attr *x_attr = container_of(attr, | |
403 | struct mspro_sys_attr, | |
404 | dev_attr); | |
405 | struct mspro_mbr *x_mbr = x_attr->data; | |
406 | ssize_t rc = 0; | |
407 | ||
408 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "boot partition: %x\n", | |
409 | x_mbr->boot_partition); | |
410 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start head: %x\n", | |
411 | x_mbr->start_head); | |
412 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sector: %x\n", | |
413 | x_mbr->start_sector); | |
414 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start cylinder: %x\n", | |
415 | x_mbr->start_cylinder); | |
416 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "partition type: %x\n", | |
417 | x_mbr->partition_type); | |
418 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end head: %x\n", | |
419 | x_mbr->end_head); | |
420 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end sector: %x\n", | |
421 | x_mbr->end_sector); | |
422 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end cylinder: %x\n", | |
423 | x_mbr->end_cylinder); | |
424 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sectors: %x\n", | |
425 | x_mbr->start_sectors); | |
426 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, | |
427 | "sectors per partition: %x\n", | |
428 | x_mbr->sectors_per_partition); | |
429 | return rc; | |
430 | } | |
431 | ||
efb2742e AD |
432 | static ssize_t mspro_block_attr_show_specfile(struct device *dev, |
433 | struct device_attribute *attr, | |
434 | char *buffer) | |
435 | { | |
436 | struct mspro_sys_attr *x_attr = container_of(attr, | |
437 | struct mspro_sys_attr, | |
438 | dev_attr); | |
439 | struct mspro_specfile *x_spfile = x_attr->data; | |
440 | char name[9], ext[4]; | |
441 | ssize_t rc = 0; | |
442 | ||
443 | memcpy(name, x_spfile->name, 8); | |
444 | name[8] = 0; | |
445 | memcpy(ext, x_spfile->ext, 3); | |
446 | ext[3] = 0; | |
447 | ||
448 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "name: %s\n", name); | |
449 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "ext: %s\n", ext); | |
450 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "attribute: %x\n", | |
451 | x_spfile->attr); | |
452 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "time: %d:%d:%d\n", | |
453 | x_spfile->time >> 11, | |
454 | (x_spfile->time >> 5) & 0x3f, | |
455 | (x_spfile->time & 0x1f) * 2); | |
456 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "date: %d-%d-%d\n", | |
457 | (x_spfile->date >> 9) + 1980, | |
458 | (x_spfile->date >> 5) & 0xf, | |
459 | x_spfile->date & 0x1f); | |
460 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start cluster: %x\n", | |
461 | x_spfile->cluster); | |
462 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "size: %x\n", | |
463 | x_spfile->size); | |
464 | return rc; | |
465 | } | |
466 | ||
baf8532a AD |
467 | static ssize_t mspro_block_attr_show_devinfo(struct device *dev, |
468 | struct device_attribute *attr, | |
469 | char *buffer) | |
470 | { | |
471 | struct mspro_sys_attr *x_attr = container_of(attr, | |
472 | struct mspro_sys_attr, | |
473 | dev_attr); | |
474 | struct mspro_devinfo *x_devinfo = x_attr->data; | |
475 | ssize_t rc = 0; | |
476 | ||
477 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "cylinders: %x\n", | |
478 | be16_to_cpu(x_devinfo->cylinders)); | |
479 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "heads: %x\n", | |
480 | be16_to_cpu(x_devinfo->heads)); | |
481 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "bytes per track: %x\n", | |
482 | be16_to_cpu(x_devinfo->bytes_per_track)); | |
483 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "bytes per sector: %x\n", | |
484 | be16_to_cpu(x_devinfo->bytes_per_sector)); | |
485 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "sectors per track: %x\n", | |
486 | be16_to_cpu(x_devinfo->sectors_per_track)); | |
487 | return rc; | |
488 | } | |
489 | ||
490 | static sysfs_show_t mspro_block_attr_show(unsigned char tag) | |
491 | { | |
492 | switch (tag) { | |
493 | case MSPRO_BLOCK_ID_SYSINFO: | |
494 | return mspro_block_attr_show_sysinfo; | |
495 | case MSPRO_BLOCK_ID_MODELNAME: | |
496 | return mspro_block_attr_show_modelname; | |
497 | case MSPRO_BLOCK_ID_MBR: | |
498 | return mspro_block_attr_show_mbr; | |
efb2742e AD |
499 | case MSPRO_BLOCK_ID_SPECFILEVALUES1: |
500 | case MSPRO_BLOCK_ID_SPECFILEVALUES2: | |
501 | return mspro_block_attr_show_specfile; | |
baf8532a AD |
502 | case MSPRO_BLOCK_ID_DEVINFO: |
503 | return mspro_block_attr_show_devinfo; | |
504 | default: | |
505 | return mspro_block_attr_show_default; | |
506 | } | |
507 | } | |
508 | ||
509 | /*** Protocol handlers ***/ | |
510 | ||
511 | /* | |
512 | * Functions prefixed with "h_" are protocol callbacks. They can be called from | |
513 | * interrupt context. Return value of 0 means that request processing is still | |
514 | * ongoing, while special error value of -EAGAIN means that current request is | |
515 | * finished (and request processor should come back some time later). | |
516 | */ | |
517 | ||
518 | static int h_mspro_block_req_init(struct memstick_dev *card, | |
519 | struct memstick_request **mrq) | |
520 | { | |
521 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
522 | ||
523 | *mrq = &card->current_mrq; | |
524 | card->next_request = msb->mrq_handler; | |
525 | return 0; | |
526 | } | |
527 | ||
528 | static int h_mspro_block_default(struct memstick_dev *card, | |
529 | struct memstick_request **mrq) | |
530 | { | |
f1d82698 AD |
531 | return mspro_block_complete_req(card, (*mrq)->error); |
532 | } | |
533 | ||
534 | static int h_mspro_block_default_bad(struct memstick_dev *card, | |
535 | struct memstick_request **mrq) | |
536 | { | |
537 | return -ENXIO; | |
baf8532a AD |
538 | } |
539 | ||
540 | static int h_mspro_block_get_ro(struct memstick_dev *card, | |
541 | struct memstick_request **mrq) | |
542 | { | |
543 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
544 | ||
f1d82698 AD |
545 | if (!(*mrq)->error) { |
546 | if ((*mrq)->data[offsetof(struct ms_status_register, status0)] | |
547 | & MEMSTICK_STATUS0_WP) | |
548 | msb->read_only = 1; | |
549 | else | |
550 | msb->read_only = 0; | |
baf8532a AD |
551 | } |
552 | ||
f1d82698 | 553 | return mspro_block_complete_req(card, (*mrq)->error); |
baf8532a AD |
554 | } |
555 | ||
556 | static int h_mspro_block_wait_for_ced(struct memstick_dev *card, | |
557 | struct memstick_request **mrq) | |
558 | { | |
baf8532a AD |
559 | dev_dbg(&card->dev, "wait for ced: value %x\n", (*mrq)->data[0]); |
560 | ||
f1d82698 AD |
561 | if (!(*mrq)->error) { |
562 | if ((*mrq)->data[0] & (MEMSTICK_INT_CMDNAK | MEMSTICK_INT_ERR)) | |
563 | (*mrq)->error = -EFAULT; | |
564 | else if (!((*mrq)->data[0] & MEMSTICK_INT_CED)) | |
565 | return 0; | |
baf8532a AD |
566 | } |
567 | ||
f1d82698 | 568 | return mspro_block_complete_req(card, (*mrq)->error); |
baf8532a AD |
569 | } |
570 | ||
571 | static int h_mspro_block_transfer_data(struct memstick_dev *card, | |
572 | struct memstick_request **mrq) | |
573 | { | |
baf8532a AD |
574 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
575 | unsigned char t_val = 0; | |
576 | struct scatterlist t_sg = { 0 }; | |
577 | size_t t_offset; | |
578 | ||
f1d82698 AD |
579 | if ((*mrq)->error) |
580 | return mspro_block_complete_req(card, (*mrq)->error); | |
baf8532a AD |
581 | |
582 | switch ((*mrq)->tpc) { | |
583 | case MS_TPC_WRITE_REG: | |
584 | memstick_init_req(*mrq, MS_TPC_SET_CMD, &msb->transfer_cmd, 1); | |
ead70773 | 585 | (*mrq)->need_card_int = 1; |
baf8532a AD |
586 | return 0; |
587 | case MS_TPC_SET_CMD: | |
588 | t_val = (*mrq)->int_reg; | |
589 | memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1); | |
ead70773 | 590 | if (msb->caps & MEMSTICK_CAP_AUTO_GET_INT) |
baf8532a AD |
591 | goto has_int_reg; |
592 | return 0; | |
593 | case MS_TPC_GET_INT: | |
594 | t_val = (*mrq)->data[0]; | |
595 | has_int_reg: | |
596 | if (t_val & (MEMSTICK_INT_CMDNAK | MEMSTICK_INT_ERR)) { | |
597 | t_val = MSPRO_CMD_STOP; | |
598 | memstick_init_req(*mrq, MS_TPC_SET_CMD, &t_val, 1); | |
599 | card->next_request = h_mspro_block_default; | |
600 | return 0; | |
601 | } | |
602 | ||
603 | if (msb->current_page | |
604 | == (msb->req_sg[msb->current_seg].length | |
605 | / msb->page_size)) { | |
606 | msb->current_page = 0; | |
607 | msb->current_seg++; | |
608 | ||
609 | if (msb->current_seg == msb->seg_count) { | |
610 | if (t_val & MEMSTICK_INT_CED) { | |
f1d82698 AD |
611 | return mspro_block_complete_req(card, |
612 | 0); | |
baf8532a AD |
613 | } else { |
614 | card->next_request | |
615 | = h_mspro_block_wait_for_ced; | |
616 | memstick_init_req(*mrq, MS_TPC_GET_INT, | |
617 | NULL, 1); | |
618 | return 0; | |
619 | } | |
620 | } | |
621 | } | |
622 | ||
623 | if (!(t_val & MEMSTICK_INT_BREQ)) { | |
624 | memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1); | |
625 | return 0; | |
626 | } | |
627 | ||
628 | t_offset = msb->req_sg[msb->current_seg].offset; | |
629 | t_offset += msb->current_page * msb->page_size; | |
630 | ||
631 | sg_set_page(&t_sg, | |
632 | nth_page(sg_page(&(msb->req_sg[msb->current_seg])), | |
633 | t_offset >> PAGE_SHIFT), | |
634 | msb->page_size, offset_in_page(t_offset)); | |
635 | ||
636 | memstick_init_req_sg(*mrq, msb->data_dir == READ | |
637 | ? MS_TPC_READ_LONG_DATA | |
638 | : MS_TPC_WRITE_LONG_DATA, | |
639 | &t_sg); | |
ead70773 | 640 | (*mrq)->need_card_int = 1; |
baf8532a AD |
641 | return 0; |
642 | case MS_TPC_READ_LONG_DATA: | |
643 | case MS_TPC_WRITE_LONG_DATA: | |
644 | msb->current_page++; | |
ead70773 | 645 | if (msb->caps & MEMSTICK_CAP_AUTO_GET_INT) { |
baf8532a AD |
646 | t_val = (*mrq)->int_reg; |
647 | goto has_int_reg; | |
648 | } else { | |
649 | memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1); | |
650 | return 0; | |
651 | } | |
652 | ||
653 | default: | |
654 | BUG(); | |
655 | } | |
656 | } | |
657 | ||
658 | /*** Data transfer ***/ | |
659 | ||
f1d82698 | 660 | static int mspro_block_issue_req(struct memstick_dev *card, int chunk) |
baf8532a AD |
661 | { |
662 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
baf8532a | 663 | sector_t t_sec; |
f1d82698 AD |
664 | unsigned int count; |
665 | struct mspro_param_register param; | |
baf8532a | 666 | |
f1d82698 AD |
667 | try_again: |
668 | while (chunk) { | |
669 | msb->current_page = 0; | |
baf8532a | 670 | msb->current_seg = 0; |
f1d82698 AD |
671 | msb->seg_count = blk_rq_map_sg(msb->block_req->q, |
672 | msb->block_req, | |
673 | msb->req_sg); | |
baf8532a | 674 | |
f1d82698 AD |
675 | if (!msb->seg_count) { |
676 | chunk = __blk_end_request(msb->block_req, -ENOMEM, | |
677 | blk_rq_cur_bytes(msb->block_req)); | |
678 | continue; | |
679 | } | |
baf8532a | 680 | |
f1d82698 AD |
681 | t_sec = msb->block_req->sector << 9; |
682 | sector_div(t_sec, msb->page_size); | |
baf8532a | 683 | |
f1d82698 AD |
684 | count = msb->block_req->nr_sectors << 9; |
685 | count /= msb->page_size; | |
baf8532a | 686 | |
f1d82698 AD |
687 | param.system = msb->system; |
688 | param.data_count = cpu_to_be16(count); | |
689 | param.data_address = cpu_to_be32((uint32_t)t_sec); | |
690 | param.tpc_param = 0; | |
691 | ||
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; | |
696 | ||
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); | |
700 | ||
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); | |
706 | return 0; | |
707 | } | |
708 | ||
709 | dev_dbg(&card->dev, "elv_next\n"); | |
710 | msb->block_req = elv_next_request(msb->queue); | |
711 | if (!msb->block_req) { | |
712 | dev_dbg(&card->dev, "issue end\n"); | |
713 | return -EAGAIN; | |
714 | } | |
715 | ||
716 | dev_dbg(&card->dev, "trying again\n"); | |
717 | chunk = 1; | |
718 | goto try_again; | |
baf8532a AD |
719 | } |
720 | ||
f1d82698 | 721 | static int mspro_block_complete_req(struct memstick_dev *card, int error) |
baf8532a | 722 | { |
f1d82698 AD |
723 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
724 | int chunk, cnt; | |
725 | unsigned int t_len = 0; | |
baf8532a AD |
726 | unsigned long flags; |
727 | ||
728 | spin_lock_irqsave(&msb->q_lock, flags); | |
f1d82698 AD |
729 | dev_dbg(&card->dev, "complete %d, %d\n", msb->has_request ? 1 : 0, |
730 | error); | |
731 | ||
732 | if (msb->has_request) { | |
733 | /* Nothing to do - not really an error */ | |
734 | if (error == -EAGAIN) | |
735 | error = 0; | |
736 | ||
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 | |
741 | / msb->page_size; | |
742 | ||
743 | if (msb->current_page) | |
744 | t_len += msb->current_page - 1; | |
745 | ||
746 | t_len *= msb->page_size; | |
747 | } | |
748 | } else | |
749 | t_len = msb->block_req->nr_sectors << 9; | |
750 | ||
751 | dev_dbg(&card->dev, "transferred %x (%d)\n", t_len, error); | |
752 | ||
753 | if (error && !t_len) | |
754 | t_len = blk_rq_cur_bytes(msb->block_req); | |
755 | ||
756 | chunk = __blk_end_request(msb->block_req, error, t_len); | |
757 | ||
758 | error = mspro_block_issue_req(card, chunk); | |
759 | ||
760 | if (!error) | |
761 | goto out; | |
762 | else | |
763 | msb->has_request = 0; | |
764 | } else { | |
765 | if (!error) | |
766 | error = -EAGAIN; | |
767 | } | |
768 | ||
769 | card->next_request = h_mspro_block_default_bad; | |
770 | complete_all(&card->mrq_complete); | |
771 | out: | |
baf8532a | 772 | spin_unlock_irqrestore(&msb->q_lock, flags); |
f1d82698 | 773 | return error; |
baf8532a AD |
774 | } |
775 | ||
17017d8d AD |
776 | static void mspro_block_stop(struct memstick_dev *card) |
777 | { | |
778 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
779 | int rc = 0; | |
780 | unsigned long flags; | |
781 | ||
782 | while (1) { | |
783 | spin_lock_irqsave(&msb->q_lock, flags); | |
784 | if (!msb->has_request) { | |
785 | blk_stop_queue(msb->queue); | |
786 | rc = 1; | |
787 | } | |
788 | spin_unlock_irqrestore(&msb->q_lock, flags); | |
789 | ||
790 | if (rc) | |
791 | break; | |
792 | ||
793 | wait_for_completion(&card->mrq_complete); | |
794 | } | |
795 | } | |
796 | ||
797 | static void mspro_block_start(struct memstick_dev *card) | |
798 | { | |
799 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
800 | unsigned long flags; | |
801 | ||
802 | spin_lock_irqsave(&msb->q_lock, flags); | |
803 | blk_start_queue(msb->queue); | |
804 | spin_unlock_irqrestore(&msb->q_lock, flags); | |
805 | } | |
806 | ||
f1d82698 | 807 | static int mspro_block_prepare_req(struct request_queue *q, struct request *req) |
baf8532a | 808 | { |
f1d82698 AD |
809 | if (!blk_fs_request(req) && !blk_pc_request(req)) { |
810 | blk_dump_rq_flags(req, "MSPro unsupported request"); | |
811 | return BLKPREP_KILL; | |
812 | } | |
baf8532a | 813 | |
f1d82698 | 814 | req->cmd_flags |= REQ_DONTPREP; |
baf8532a | 815 | |
f1d82698 | 816 | return BLKPREP_OK; |
baf8532a AD |
817 | } |
818 | ||
f1d82698 | 819 | static void mspro_block_submit_req(struct request_queue *q) |
baf8532a AD |
820 | { |
821 | struct memstick_dev *card = q->queuedata; | |
822 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
823 | struct request *req = NULL; | |
824 | ||
f1d82698 AD |
825 | if (msb->has_request) |
826 | return; | |
827 | ||
828 | if (msb->eject) { | |
baf8532a | 829 | while ((req = elv_next_request(q)) != NULL) |
2a9df505 | 830 | __blk_end_request(req, -ENODEV, blk_rq_bytes(req)); |
f1d82698 AD |
831 | |
832 | return; | |
baf8532a | 833 | } |
f1d82698 AD |
834 | |
835 | msb->has_request = 1; | |
836 | if (mspro_block_issue_req(card, 0)) | |
837 | msb->has_request = 0; | |
baf8532a AD |
838 | } |
839 | ||
840 | /*** Initialization ***/ | |
841 | ||
842 | static int mspro_block_wait_for_ced(struct memstick_dev *card) | |
843 | { | |
844 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
845 | ||
846 | card->next_request = h_mspro_block_req_init; | |
847 | msb->mrq_handler = h_mspro_block_wait_for_ced; | |
848 | memstick_init_req(&card->current_mrq, MS_TPC_GET_INT, NULL, 1); | |
849 | memstick_new_req(card->host); | |
850 | wait_for_completion(&card->mrq_complete); | |
851 | return card->current_mrq.error; | |
852 | } | |
853 | ||
962ee1b1 AD |
854 | static int mspro_block_set_interface(struct memstick_dev *card, |
855 | unsigned char sys_reg) | |
baf8532a AD |
856 | { |
857 | struct memstick_host *host = card->host; | |
858 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
859 | struct mspro_param_register param = { | |
962ee1b1 | 860 | .system = sys_reg, |
baf8532a AD |
861 | .data_count = 0, |
862 | .data_address = 0, | |
e1f19995 | 863 | .tpc_param = 0 |
baf8532a AD |
864 | }; |
865 | ||
866 | card->next_request = h_mspro_block_req_init; | |
867 | msb->mrq_handler = h_mspro_block_default; | |
868 | memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, ¶m, | |
869 | sizeof(param)); | |
870 | memstick_new_req(host); | |
871 | wait_for_completion(&card->mrq_complete); | |
962ee1b1 AD |
872 | return card->current_mrq.error; |
873 | } | |
874 | ||
875 | static int mspro_block_switch_interface(struct memstick_dev *card) | |
876 | { | |
877 | struct memstick_host *host = card->host; | |
878 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
879 | int rc = 0; | |
880 | ||
8e82f8c3 | 881 | try_again: |
962ee1b1 AD |
882 | if (msb->caps & MEMSTICK_CAP_PAR4) |
883 | rc = mspro_block_set_interface(card, MEMSTICK_SYS_PAR4); | |
884 | else | |
885 | return 0; | |
886 | ||
887 | if (rc) { | |
888 | printk(KERN_WARNING | |
889 | "%s: could not switch to 4-bit mode, error %d\n", | |
0252c3b4 | 890 | dev_name(&card->dev), rc); |
962ee1b1 AD |
891 | return 0; |
892 | } | |
baf8532a | 893 | |
e1f19995 AD |
894 | msb->system = MEMSTICK_SYS_PAR4; |
895 | host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_PAR4); | |
962ee1b1 | 896 | printk(KERN_INFO "%s: switching to 4-bit parallel mode\n", |
0252c3b4 | 897 | dev_name(&card->dev)); |
962ee1b1 AD |
898 | |
899 | if (msb->caps & MEMSTICK_CAP_PAR8) { | |
900 | rc = mspro_block_set_interface(card, MEMSTICK_SYS_PAR8); | |
901 | ||
902 | if (!rc) { | |
903 | msb->system = MEMSTICK_SYS_PAR8; | |
904 | host->set_param(host, MEMSTICK_INTERFACE, | |
905 | MEMSTICK_PAR8); | |
906 | printk(KERN_INFO | |
907 | "%s: switching to 8-bit parallel mode\n", | |
0252c3b4 | 908 | dev_name(&card->dev)); |
962ee1b1 AD |
909 | } else |
910 | printk(KERN_WARNING | |
911 | "%s: could not switch to 8-bit mode, error %d\n", | |
0252c3b4 | 912 | dev_name(&card->dev), rc); |
962ee1b1 | 913 | } |
baf8532a AD |
914 | |
915 | card->next_request = h_mspro_block_req_init; | |
916 | msb->mrq_handler = h_mspro_block_default; | |
917 | memstick_init_req(&card->current_mrq, MS_TPC_GET_INT, NULL, 1); | |
918 | memstick_new_req(card->host); | |
919 | wait_for_completion(&card->mrq_complete); | |
962ee1b1 | 920 | rc = card->current_mrq.error; |
baf8532a | 921 | |
962ee1b1 AD |
922 | if (rc) { |
923 | printk(KERN_WARNING | |
924 | "%s: interface error, trying to fall back to serial\n", | |
0252c3b4 | 925 | dev_name(&card->dev)); |
59367258 AD |
926 | msb->system = MEMSTICK_SYS_SERIAL; |
927 | host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_OFF); | |
962ee1b1 | 928 | msleep(10); |
59367258 | 929 | host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_ON); |
baf8532a | 930 | host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_SERIAL); |
59367258 | 931 | |
962ee1b1 AD |
932 | rc = memstick_set_rw_addr(card); |
933 | if (!rc) | |
934 | rc = mspro_block_set_interface(card, msb->system); | |
8e82f8c3 AD |
935 | |
936 | if (!rc) { | |
937 | msleep(150); | |
938 | rc = mspro_block_wait_for_ced(card); | |
939 | if (rc) | |
940 | return rc; | |
941 | ||
942 | if (msb->caps & MEMSTICK_CAP_PAR8) { | |
943 | msb->caps &= ~MEMSTICK_CAP_PAR8; | |
944 | goto try_again; | |
945 | } | |
946 | } | |
baf8532a | 947 | } |
962ee1b1 | 948 | return rc; |
baf8532a AD |
949 | } |
950 | ||
951 | /* Memory allocated for attributes by this function should be freed by | |
952 | * mspro_block_data_clear, no matter if the initialization process succeded | |
953 | * or failed. | |
954 | */ | |
955 | static int mspro_block_read_attributes(struct memstick_dev *card) | |
956 | { | |
957 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
958 | struct mspro_param_register param = { | |
959 | .system = msb->system, | |
960 | .data_count = cpu_to_be16(1), | |
961 | .data_address = 0, | |
e1f19995 | 962 | .tpc_param = 0 |
baf8532a AD |
963 | }; |
964 | struct mspro_attribute *attr = NULL; | |
965 | struct mspro_sys_attr *s_attr = NULL; | |
966 | unsigned char *buffer = NULL; | |
967 | int cnt, rc, attr_count; | |
968 | unsigned int addr; | |
969 | unsigned short page_count; | |
970 | ||
971 | attr = kmalloc(msb->page_size, GFP_KERNEL); | |
972 | if (!attr) | |
973 | return -ENOMEM; | |
974 | ||
975 | sg_init_one(&msb->req_sg[0], attr, msb->page_size); | |
976 | msb->seg_count = 1; | |
977 | msb->current_seg = 0; | |
978 | msb->current_page = 0; | |
979 | msb->data_dir = READ; | |
980 | msb->transfer_cmd = MSPRO_CMD_READ_ATRB; | |
981 | ||
982 | card->next_request = h_mspro_block_req_init; | |
983 | msb->mrq_handler = h_mspro_block_transfer_data; | |
984 | memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, ¶m, | |
985 | sizeof(param)); | |
986 | memstick_new_req(card->host); | |
987 | wait_for_completion(&card->mrq_complete); | |
988 | if (card->current_mrq.error) { | |
989 | rc = card->current_mrq.error; | |
990 | goto out_free_attr; | |
991 | } | |
992 | ||
993 | if (be16_to_cpu(attr->signature) != MSPRO_BLOCK_SIGNATURE) { | |
994 | printk(KERN_ERR "%s: unrecognized device signature %x\n", | |
0252c3b4 | 995 | dev_name(&card->dev), be16_to_cpu(attr->signature)); |
baf8532a AD |
996 | rc = -ENODEV; |
997 | goto out_free_attr; | |
998 | } | |
999 | ||
1000 | if (attr->count > MSPRO_BLOCK_MAX_ATTRIBUTES) { | |
1001 | printk(KERN_WARNING "%s: way too many attribute entries\n", | |
0252c3b4 | 1002 | dev_name(&card->dev)); |
baf8532a AD |
1003 | attr_count = MSPRO_BLOCK_MAX_ATTRIBUTES; |
1004 | } else | |
1005 | attr_count = attr->count; | |
1006 | ||
1007 | msb->attr_group.attrs = kzalloc((attr_count + 1) | |
1008 | * sizeof(struct attribute), | |
1009 | GFP_KERNEL); | |
1010 | if (!msb->attr_group.attrs) { | |
1011 | rc = -ENOMEM; | |
1012 | goto out_free_attr; | |
1013 | } | |
1014 | msb->attr_group.name = "media_attributes"; | |
1015 | ||
1016 | buffer = kmalloc(msb->page_size, GFP_KERNEL); | |
1017 | if (!buffer) { | |
1018 | rc = -ENOMEM; | |
1019 | goto out_free_attr; | |
1020 | } | |
1021 | memcpy(buffer, (char *)attr, msb->page_size); | |
1022 | page_count = 1; | |
1023 | ||
1024 | for (cnt = 0; cnt < attr_count; ++cnt) { | |
1025 | s_attr = kzalloc(sizeof(struct mspro_sys_attr), GFP_KERNEL); | |
1026 | if (!s_attr) { | |
1027 | rc = -ENOMEM; | |
1028 | goto out_free_buffer; | |
1029 | } | |
1030 | ||
1031 | msb->attr_group.attrs[cnt] = &s_attr->dev_attr.attr; | |
1032 | addr = be32_to_cpu(attr->entries[cnt].address); | |
1033 | rc = be32_to_cpu(attr->entries[cnt].size); | |
1034 | dev_dbg(&card->dev, "adding attribute %d: id %x, address %x, " | |
1035 | "size %x\n", cnt, attr->entries[cnt].id, addr, rc); | |
1036 | s_attr->id = attr->entries[cnt].id; | |
1037 | if (mspro_block_attr_name(s_attr->id)) | |
1038 | snprintf(s_attr->name, sizeof(s_attr->name), "%s", | |
1039 | mspro_block_attr_name(attr->entries[cnt].id)); | |
1040 | else | |
1041 | snprintf(s_attr->name, sizeof(s_attr->name), | |
1042 | "attr_x%02x", attr->entries[cnt].id); | |
1043 | ||
1044 | s_attr->dev_attr.attr.name = s_attr->name; | |
1045 | s_attr->dev_attr.attr.mode = S_IRUGO; | |
baf8532a AD |
1046 | s_attr->dev_attr.show = mspro_block_attr_show(s_attr->id); |
1047 | ||
1048 | if (!rc) | |
1049 | continue; | |
1050 | ||
1051 | s_attr->size = rc; | |
1052 | s_attr->data = kmalloc(rc, GFP_KERNEL); | |
1053 | if (!s_attr->data) { | |
1054 | rc = -ENOMEM; | |
1055 | goto out_free_buffer; | |
1056 | } | |
1057 | ||
1058 | if (((addr / msb->page_size) | |
1059 | == be32_to_cpu(param.data_address)) | |
1060 | && (((addr + rc - 1) / msb->page_size) | |
1061 | == be32_to_cpu(param.data_address))) { | |
1062 | memcpy(s_attr->data, buffer + addr % msb->page_size, | |
1063 | rc); | |
1064 | continue; | |
1065 | } | |
1066 | ||
1067 | if (page_count <= (rc / msb->page_size)) { | |
1068 | kfree(buffer); | |
1069 | page_count = (rc / msb->page_size) + 1; | |
1070 | buffer = kmalloc(page_count * msb->page_size, | |
1071 | GFP_KERNEL); | |
1072 | if (!buffer) { | |
1073 | rc = -ENOMEM; | |
1074 | goto out_free_attr; | |
1075 | } | |
1076 | } | |
1077 | ||
1078 | param.system = msb->system; | |
1079 | param.data_count = cpu_to_be16((rc / msb->page_size) + 1); | |
1080 | param.data_address = cpu_to_be32(addr / msb->page_size); | |
e1f19995 | 1081 | param.tpc_param = 0; |
baf8532a AD |
1082 | |
1083 | sg_init_one(&msb->req_sg[0], buffer, | |
1084 | be16_to_cpu(param.data_count) * msb->page_size); | |
1085 | msb->seg_count = 1; | |
1086 | msb->current_seg = 0; | |
1087 | msb->current_page = 0; | |
1088 | msb->data_dir = READ; | |
1089 | msb->transfer_cmd = MSPRO_CMD_READ_ATRB; | |
1090 | ||
1091 | dev_dbg(&card->dev, "reading attribute pages %x, %x\n", | |
1092 | be32_to_cpu(param.data_address), | |
1093 | be16_to_cpu(param.data_count)); | |
1094 | ||
1095 | card->next_request = h_mspro_block_req_init; | |
1096 | msb->mrq_handler = h_mspro_block_transfer_data; | |
1097 | memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, | |
1098 | (char *)¶m, sizeof(param)); | |
1099 | memstick_new_req(card->host); | |
1100 | wait_for_completion(&card->mrq_complete); | |
1101 | if (card->current_mrq.error) { | |
1102 | rc = card->current_mrq.error; | |
1103 | goto out_free_buffer; | |
1104 | } | |
1105 | ||
1106 | memcpy(s_attr->data, buffer + addr % msb->page_size, rc); | |
1107 | } | |
1108 | ||
1109 | rc = 0; | |
1110 | out_free_buffer: | |
1111 | kfree(buffer); | |
1112 | out_free_attr: | |
1113 | kfree(attr); | |
1114 | return rc; | |
1115 | } | |
1116 | ||
1117 | static int mspro_block_init_card(struct memstick_dev *card) | |
1118 | { | |
1119 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
1120 | struct memstick_host *host = card->host; | |
1121 | int rc = 0; | |
1122 | ||
e1f19995 | 1123 | msb->system = MEMSTICK_SYS_SERIAL; |
baf8532a AD |
1124 | card->reg_addr.r_offset = offsetof(struct mspro_register, status); |
1125 | card->reg_addr.r_length = sizeof(struct ms_status_register); | |
1126 | card->reg_addr.w_offset = offsetof(struct mspro_register, param); | |
1127 | card->reg_addr.w_length = sizeof(struct mspro_param_register); | |
1128 | ||
1129 | if (memstick_set_rw_addr(card)) | |
1130 | return -EIO; | |
1131 | ||
ead70773 | 1132 | msb->caps = host->caps; |
8e82f8c3 AD |
1133 | |
1134 | msleep(150); | |
1135 | rc = mspro_block_wait_for_ced(card); | |
962ee1b1 AD |
1136 | if (rc) |
1137 | return rc; | |
baf8532a | 1138 | |
8e82f8c3 | 1139 | rc = mspro_block_switch_interface(card); |
baf8532a AD |
1140 | if (rc) |
1141 | return rc; | |
8e82f8c3 | 1142 | |
baf8532a | 1143 | dev_dbg(&card->dev, "card activated\n"); |
ead70773 AD |
1144 | if (msb->system != MEMSTICK_SYS_SERIAL) |
1145 | msb->caps |= MEMSTICK_CAP_AUTO_GET_INT; | |
baf8532a AD |
1146 | |
1147 | card->next_request = h_mspro_block_req_init; | |
1148 | msb->mrq_handler = h_mspro_block_get_ro; | |
1149 | memstick_init_req(&card->current_mrq, MS_TPC_READ_REG, NULL, | |
1150 | sizeof(struct ms_status_register)); | |
1151 | memstick_new_req(card->host); | |
1152 | wait_for_completion(&card->mrq_complete); | |
1153 | if (card->current_mrq.error) | |
1154 | return card->current_mrq.error; | |
1155 | ||
1156 | dev_dbg(&card->dev, "card r/w status %d\n", msb->read_only ? 0 : 1); | |
1157 | ||
1158 | msb->page_size = 512; | |
1159 | rc = mspro_block_read_attributes(card); | |
1160 | if (rc) | |
1161 | return rc; | |
1162 | ||
1163 | dev_dbg(&card->dev, "attributes loaded\n"); | |
1164 | return 0; | |
1165 | ||
1166 | } | |
1167 | ||
1168 | static int mspro_block_init_disk(struct memstick_dev *card) | |
1169 | { | |
1170 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
1171 | struct memstick_host *host = card->host; | |
1172 | struct mspro_devinfo *dev_info = NULL; | |
1173 | struct mspro_sys_info *sys_info = NULL; | |
1174 | struct mspro_sys_attr *s_attr = NULL; | |
1175 | int rc, disk_id; | |
1176 | u64 limit = BLK_BOUNCE_HIGH; | |
1177 | unsigned long capacity; | |
1178 | ||
c4c66cf1 GKH |
1179 | if (host->dev.dma_mask && *(host->dev.dma_mask)) |
1180 | limit = *(host->dev.dma_mask); | |
baf8532a AD |
1181 | |
1182 | for (rc = 0; msb->attr_group.attrs[rc]; ++rc) { | |
1183 | s_attr = mspro_from_sysfs_attr(msb->attr_group.attrs[rc]); | |
1184 | ||
1185 | if (s_attr->id == MSPRO_BLOCK_ID_DEVINFO) | |
1186 | dev_info = s_attr->data; | |
1187 | else if (s_attr->id == MSPRO_BLOCK_ID_SYSINFO) | |
1188 | sys_info = s_attr->data; | |
1189 | } | |
1190 | ||
1191 | if (!dev_info || !sys_info) | |
1192 | return -ENODEV; | |
1193 | ||
1194 | msb->cylinders = be16_to_cpu(dev_info->cylinders); | |
1195 | msb->heads = be16_to_cpu(dev_info->heads); | |
1196 | msb->sectors_per_track = be16_to_cpu(dev_info->sectors_per_track); | |
1197 | ||
1198 | msb->page_size = be16_to_cpu(sys_info->unit_size); | |
1199 | ||
1200 | if (!idr_pre_get(&mspro_block_disk_idr, GFP_KERNEL)) | |
1201 | return -ENOMEM; | |
1202 | ||
1203 | mutex_lock(&mspro_block_disk_lock); | |
1204 | rc = idr_get_new(&mspro_block_disk_idr, card, &disk_id); | |
1205 | mutex_unlock(&mspro_block_disk_lock); | |
1206 | ||
1207 | if (rc) | |
1208 | return rc; | |
1209 | ||
8e82f8c3 | 1210 | if ((disk_id << MSPRO_BLOCK_PART_SHIFT) > 255) { |
baf8532a AD |
1211 | rc = -ENOSPC; |
1212 | goto out_release_id; | |
1213 | } | |
1214 | ||
8e82f8c3 | 1215 | msb->disk = alloc_disk(1 << MSPRO_BLOCK_PART_SHIFT); |
baf8532a AD |
1216 | if (!msb->disk) { |
1217 | rc = -ENOMEM; | |
1218 | goto out_release_id; | |
1219 | } | |
1220 | ||
f1d82698 | 1221 | msb->queue = blk_init_queue(mspro_block_submit_req, &msb->q_lock); |
baf8532a AD |
1222 | if (!msb->queue) { |
1223 | rc = -ENOMEM; | |
1224 | goto out_put_disk; | |
1225 | } | |
1226 | ||
1227 | msb->queue->queuedata = card; | |
f1d82698 | 1228 | blk_queue_prep_rq(msb->queue, mspro_block_prepare_req); |
baf8532a AD |
1229 | |
1230 | blk_queue_bounce_limit(msb->queue, limit); | |
1231 | blk_queue_max_sectors(msb->queue, MSPRO_BLOCK_MAX_PAGES); | |
1232 | blk_queue_max_phys_segments(msb->queue, MSPRO_BLOCK_MAX_SEGS); | |
1233 | blk_queue_max_hw_segments(msb->queue, MSPRO_BLOCK_MAX_SEGS); | |
1234 | blk_queue_max_segment_size(msb->queue, | |
1235 | MSPRO_BLOCK_MAX_PAGES * msb->page_size); | |
1236 | ||
1237 | msb->disk->major = major; | |
8e82f8c3 | 1238 | msb->disk->first_minor = disk_id << MSPRO_BLOCK_PART_SHIFT; |
baf8532a AD |
1239 | msb->disk->fops = &ms_block_bdops; |
1240 | msb->usage_count = 1; | |
1241 | msb->disk->private_data = msb; | |
1242 | msb->disk->queue = msb->queue; | |
1243 | msb->disk->driverfs_dev = &card->dev; | |
1244 | ||
1245 | sprintf(msb->disk->disk_name, "mspblk%d", disk_id); | |
1246 | ||
1247 | blk_queue_hardsect_size(msb->queue, msb->page_size); | |
1248 | ||
1249 | capacity = be16_to_cpu(sys_info->user_block_count); | |
1250 | capacity *= be16_to_cpu(sys_info->block_size); | |
1251 | capacity *= msb->page_size >> 9; | |
1252 | set_capacity(msb->disk, capacity); | |
1253 | dev_dbg(&card->dev, "capacity set %ld\n", capacity); | |
baf8532a | 1254 | |
baf8532a | 1255 | add_disk(msb->disk); |
baf8532a AD |
1256 | msb->active = 1; |
1257 | return 0; | |
1258 | ||
1259 | out_put_disk: | |
1260 | put_disk(msb->disk); | |
1261 | out_release_id: | |
1262 | mutex_lock(&mspro_block_disk_lock); | |
1263 | idr_remove(&mspro_block_disk_idr, disk_id); | |
1264 | mutex_unlock(&mspro_block_disk_lock); | |
1265 | return rc; | |
1266 | } | |
1267 | ||
1268 | static void mspro_block_data_clear(struct mspro_block_data *msb) | |
1269 | { | |
1270 | int cnt; | |
1271 | struct mspro_sys_attr *s_attr; | |
1272 | ||
1273 | if (msb->attr_group.attrs) { | |
1274 | for (cnt = 0; msb->attr_group.attrs[cnt]; ++cnt) { | |
1275 | s_attr = mspro_from_sysfs_attr(msb->attr_group | |
1276 | .attrs[cnt]); | |
1277 | kfree(s_attr->data); | |
1278 | kfree(s_attr); | |
1279 | } | |
1280 | kfree(msb->attr_group.attrs); | |
1281 | } | |
1282 | ||
1283 | msb->card = NULL; | |
1284 | } | |
1285 | ||
1286 | static int mspro_block_check_card(struct memstick_dev *card) | |
1287 | { | |
1288 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
1289 | ||
1290 | return (msb->active == 1); | |
1291 | } | |
1292 | ||
1293 | static int mspro_block_probe(struct memstick_dev *card) | |
1294 | { | |
1295 | struct mspro_block_data *msb; | |
1296 | int rc = 0; | |
1297 | ||
1298 | msb = kzalloc(sizeof(struct mspro_block_data), GFP_KERNEL); | |
1299 | if (!msb) | |
1300 | return -ENOMEM; | |
1301 | memstick_set_drvdata(card, msb); | |
1302 | msb->card = card; | |
f1d82698 | 1303 | spin_lock_init(&msb->q_lock); |
baf8532a AD |
1304 | |
1305 | rc = mspro_block_init_card(card); | |
1306 | ||
1307 | if (rc) | |
1308 | goto out_free; | |
1309 | ||
1310 | rc = sysfs_create_group(&card->dev.kobj, &msb->attr_group); | |
1311 | if (rc) | |
1312 | goto out_free; | |
1313 | ||
1314 | rc = mspro_block_init_disk(card); | |
1315 | if (!rc) { | |
1316 | card->check = mspro_block_check_card; | |
17017d8d AD |
1317 | card->stop = mspro_block_stop; |
1318 | card->start = mspro_block_start; | |
baf8532a AD |
1319 | return 0; |
1320 | } | |
1321 | ||
1322 | sysfs_remove_group(&card->dev.kobj, &msb->attr_group); | |
1323 | out_free: | |
1324 | memstick_set_drvdata(card, NULL); | |
1325 | mspro_block_data_clear(msb); | |
1326 | kfree(msb); | |
1327 | return rc; | |
1328 | } | |
1329 | ||
1330 | static void mspro_block_remove(struct memstick_dev *card) | |
1331 | { | |
1332 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
baf8532a AD |
1333 | unsigned long flags; |
1334 | ||
1335 | del_gendisk(msb->disk); | |
1336 | dev_dbg(&card->dev, "mspro block remove\n"); | |
1337 | spin_lock_irqsave(&msb->q_lock, flags); | |
f1d82698 AD |
1338 | msb->eject = 1; |
1339 | blk_start_queue(msb->queue); | |
baf8532a AD |
1340 | spin_unlock_irqrestore(&msb->q_lock, flags); |
1341 | ||
baf8532a | 1342 | blk_cleanup_queue(msb->queue); |
f1d82698 | 1343 | msb->queue = NULL; |
baf8532a AD |
1344 | |
1345 | sysfs_remove_group(&card->dev.kobj, &msb->attr_group); | |
1346 | ||
1347 | mutex_lock(&mspro_block_disk_lock); | |
1348 | mspro_block_data_clear(msb); | |
1349 | mutex_unlock(&mspro_block_disk_lock); | |
1350 | ||
1351 | mspro_block_disk_release(msb->disk); | |
1352 | memstick_set_drvdata(card, NULL); | |
1353 | } | |
1354 | ||
1355 | #ifdef CONFIG_PM | |
1356 | ||
1357 | static int mspro_block_suspend(struct memstick_dev *card, pm_message_t state) | |
1358 | { | |
1359 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
baf8532a AD |
1360 | unsigned long flags; |
1361 | ||
1362 | spin_lock_irqsave(&msb->q_lock, flags); | |
baf8532a | 1363 | blk_stop_queue(msb->queue); |
f1d82698 | 1364 | msb->active = 0; |
baf8532a AD |
1365 | spin_unlock_irqrestore(&msb->q_lock, flags); |
1366 | ||
baf8532a AD |
1367 | return 0; |
1368 | } | |
1369 | ||
1370 | static int mspro_block_resume(struct memstick_dev *card) | |
1371 | { | |
1372 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
1373 | unsigned long flags; | |
1374 | int rc = 0; | |
1375 | ||
1376 | #ifdef CONFIG_MEMSTICK_UNSAFE_RESUME | |
1377 | ||
1378 | struct mspro_block_data *new_msb; | |
1379 | struct memstick_host *host = card->host; | |
1380 | struct mspro_sys_attr *s_attr, *r_attr; | |
1381 | unsigned char cnt; | |
1382 | ||
1383 | mutex_lock(&host->lock); | |
1384 | new_msb = kzalloc(sizeof(struct mspro_block_data), GFP_KERNEL); | |
1385 | if (!new_msb) { | |
1386 | rc = -ENOMEM; | |
1387 | goto out_unlock; | |
1388 | } | |
1389 | ||
1390 | new_msb->card = card; | |
1391 | memstick_set_drvdata(card, new_msb); | |
1392 | if (mspro_block_init_card(card)) | |
1393 | goto out_free; | |
1394 | ||
1395 | for (cnt = 0; new_msb->attr_group.attrs[cnt] | |
1396 | && msb->attr_group.attrs[cnt]; ++cnt) { | |
1397 | s_attr = mspro_from_sysfs_attr(new_msb->attr_group.attrs[cnt]); | |
1398 | r_attr = mspro_from_sysfs_attr(msb->attr_group.attrs[cnt]); | |
1399 | ||
1400 | if (s_attr->id == MSPRO_BLOCK_ID_SYSINFO | |
1401 | && r_attr->id == s_attr->id) { | |
1402 | if (memcmp(s_attr->data, r_attr->data, s_attr->size)) | |
1403 | break; | |
1404 | ||
f1d82698 | 1405 | msb->active = 1; |
baf8532a AD |
1406 | break; |
1407 | } | |
1408 | } | |
1409 | ||
1410 | out_free: | |
1411 | memstick_set_drvdata(card, msb); | |
1412 | mspro_block_data_clear(new_msb); | |
1413 | kfree(new_msb); | |
1414 | out_unlock: | |
1415 | mutex_unlock(&host->lock); | |
1416 | ||
1417 | #endif /* CONFIG_MEMSTICK_UNSAFE_RESUME */ | |
1418 | ||
1419 | spin_lock_irqsave(&msb->q_lock, flags); | |
1420 | blk_start_queue(msb->queue); | |
1421 | spin_unlock_irqrestore(&msb->q_lock, flags); | |
1422 | return rc; | |
1423 | } | |
1424 | ||
1425 | #else | |
1426 | ||
1427 | #define mspro_block_suspend NULL | |
1428 | #define mspro_block_resume NULL | |
1429 | ||
1430 | #endif /* CONFIG_PM */ | |
1431 | ||
1432 | static struct memstick_device_id mspro_block_id_tbl[] = { | |
1433 | {MEMSTICK_MATCH_ALL, MEMSTICK_TYPE_PRO, MEMSTICK_CATEGORY_STORAGE_DUO, | |
8e82f8c3 | 1434 | MEMSTICK_CLASS_DUO}, |
baf8532a AD |
1435 | {} |
1436 | }; | |
1437 | ||
1438 | ||
1439 | static struct memstick_driver mspro_block_driver = { | |
1440 | .driver = { | |
1441 | .name = DRIVER_NAME, | |
1442 | .owner = THIS_MODULE | |
1443 | }, | |
1444 | .id_table = mspro_block_id_tbl, | |
1445 | .probe = mspro_block_probe, | |
1446 | .remove = mspro_block_remove, | |
1447 | .suspend = mspro_block_suspend, | |
1448 | .resume = mspro_block_resume | |
1449 | }; | |
1450 | ||
1451 | static int __init mspro_block_init(void) | |
1452 | { | |
1453 | int rc = -ENOMEM; | |
1454 | ||
1455 | rc = register_blkdev(major, DRIVER_NAME); | |
1456 | if (rc < 0) { | |
1457 | printk(KERN_ERR DRIVER_NAME ": failed to register " | |
1458 | "major %d, error %d\n", major, rc); | |
1459 | return rc; | |
1460 | } | |
1461 | if (!major) | |
1462 | major = rc; | |
1463 | ||
1464 | rc = memstick_register_driver(&mspro_block_driver); | |
1465 | if (rc) | |
1466 | unregister_blkdev(major, DRIVER_NAME); | |
1467 | return rc; | |
1468 | } | |
1469 | ||
1470 | static void __exit mspro_block_exit(void) | |
1471 | { | |
1472 | memstick_unregister_driver(&mspro_block_driver); | |
1473 | unregister_blkdev(major, DRIVER_NAME); | |
1474 | idr_destroy(&mspro_block_disk_idr); | |
1475 | } | |
1476 | ||
1477 | module_init(mspro_block_init); | |
1478 | module_exit(mspro_block_exit); | |
1479 | ||
1480 | MODULE_LICENSE("GPL"); | |
1481 | MODULE_AUTHOR("Alex Dubov"); | |
1482 | MODULE_DESCRIPTION("Sony MemoryStickPro block device driver"); | |
1483 | MODULE_DEVICE_TABLE(memstick, mspro_block_id_tbl); |