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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> |
5a0e3ad6 | 20 | #include <linux/slab.h> |
2a48fc0a | 21 | #include <linux/mutex.h> |
baf8532a | 22 | #include <linux/memstick.h> |
c47e7893 | 23 | #include <linux/module.h> |
baf8532a AD |
24 | |
25 | #define DRIVER_NAME "mspro_block" | |
baf8532a AD |
26 | |
27 | static int major; | |
28 | module_param(major, int, 0644); | |
29 | ||
30 | #define MSPRO_BLOCK_MAX_SEGS 32 | |
31 | #define MSPRO_BLOCK_MAX_PAGES ((2 << 16) - 1) | |
32 | ||
33 | #define MSPRO_BLOCK_SIGNATURE 0xa5c3 | |
34 | #define MSPRO_BLOCK_MAX_ATTRIBUTES 41 | |
35 | ||
8e82f8c3 AD |
36 | #define MSPRO_BLOCK_PART_SHIFT 3 |
37 | ||
baf8532a AD |
38 | enum { |
39 | MSPRO_BLOCK_ID_SYSINFO = 0x10, | |
40 | MSPRO_BLOCK_ID_MODELNAME = 0x15, | |
41 | MSPRO_BLOCK_ID_MBR = 0x20, | |
42 | MSPRO_BLOCK_ID_PBR16 = 0x21, | |
43 | MSPRO_BLOCK_ID_PBR32 = 0x22, | |
44 | MSPRO_BLOCK_ID_SPECFILEVALUES1 = 0x25, | |
45 | MSPRO_BLOCK_ID_SPECFILEVALUES2 = 0x26, | |
46 | MSPRO_BLOCK_ID_DEVINFO = 0x30 | |
47 | }; | |
48 | ||
49 | struct mspro_sys_attr { | |
50 | size_t size; | |
51 | void *data; | |
52 | unsigned char id; | |
53 | char name[32]; | |
54 | struct device_attribute dev_attr; | |
55 | }; | |
56 | ||
57 | struct mspro_attr_entry { | |
69347a23 HH |
58 | __be32 address; |
59 | __be32 size; | |
baf8532a AD |
60 | unsigned char id; |
61 | unsigned char reserved[3]; | |
62 | } __attribute__((packed)); | |
63 | ||
64 | struct mspro_attribute { | |
69347a23 | 65 | __be16 signature; |
baf8532a AD |
66 | unsigned short version; |
67 | unsigned char count; | |
68 | unsigned char reserved[11]; | |
69 | struct mspro_attr_entry entries[]; | |
70 | } __attribute__((packed)); | |
71 | ||
72 | struct mspro_sys_info { | |
73 | unsigned char class; | |
74 | unsigned char reserved0; | |
69347a23 HH |
75 | __be16 block_size; |
76 | __be16 block_count; | |
77 | __be16 user_block_count; | |
78 | __be16 page_size; | |
baf8532a AD |
79 | unsigned char reserved1[2]; |
80 | unsigned char assembly_date[8]; | |
69347a23 | 81 | __be32 serial_number; |
baf8532a AD |
82 | unsigned char assembly_maker_code; |
83 | unsigned char assembly_model_code[3]; | |
69347a23 HH |
84 | __be16 memory_maker_code; |
85 | __be16 memory_model_code; | |
baf8532a AD |
86 | unsigned char reserved2[4]; |
87 | unsigned char vcc; | |
88 | unsigned char vpp; | |
69347a23 HH |
89 | __be16 controller_number; |
90 | __be16 controller_function; | |
91 | __be16 start_sector; | |
92 | __be16 unit_size; | |
baf8532a AD |
93 | unsigned char ms_sub_class; |
94 | unsigned char reserved3[4]; | |
95 | unsigned char interface_type; | |
69347a23 | 96 | __be16 controller_code; |
baf8532a AD |
97 | unsigned char format_type; |
98 | unsigned char reserved4; | |
99 | unsigned char device_type; | |
100 | unsigned char reserved5[7]; | |
101 | unsigned char mspro_id[16]; | |
102 | unsigned char reserved6[16]; | |
103 | } __attribute__((packed)); | |
104 | ||
105 | struct mspro_mbr { | |
106 | unsigned char boot_partition; | |
107 | unsigned char start_head; | |
108 | unsigned char start_sector; | |
109 | unsigned char start_cylinder; | |
110 | unsigned char partition_type; | |
111 | unsigned char end_head; | |
112 | unsigned char end_sector; | |
113 | unsigned char end_cylinder; | |
114 | unsigned int start_sectors; | |
115 | unsigned int sectors_per_partition; | |
116 | } __attribute__((packed)); | |
117 | ||
efb2742e AD |
118 | struct mspro_specfile { |
119 | char name[8]; | |
120 | char ext[3]; | |
121 | unsigned char attr; | |
122 | unsigned char reserved[10]; | |
123 | unsigned short time; | |
124 | unsigned short date; | |
125 | unsigned short cluster; | |
126 | unsigned int size; | |
127 | } __attribute__((packed)); | |
128 | ||
baf8532a | 129 | struct mspro_devinfo { |
69347a23 HH |
130 | __be16 cylinders; |
131 | __be16 heads; | |
132 | __be16 bytes_per_track; | |
133 | __be16 bytes_per_sector; | |
134 | __be16 sectors_per_track; | |
baf8532a AD |
135 | unsigned char reserved[6]; |
136 | } __attribute__((packed)); | |
137 | ||
138 | struct mspro_block_data { | |
139 | struct memstick_dev *card; | |
140 | unsigned int usage_count; | |
ead70773 | 141 | unsigned int caps; |
baf8532a AD |
142 | struct gendisk *disk; |
143 | struct request_queue *queue; | |
f1d82698 | 144 | struct request *block_req; |
baf8532a | 145 | spinlock_t q_lock; |
baf8532a AD |
146 | |
147 | unsigned short page_size; | |
148 | unsigned short cylinders; | |
149 | unsigned short heads; | |
150 | unsigned short sectors_per_track; | |
151 | ||
152 | unsigned char system; | |
153 | unsigned char read_only:1, | |
f1d82698 | 154 | eject:1, |
baf8532a | 155 | has_request:1, |
f1d82698 AD |
156 | data_dir:1, |
157 | active:1; | |
baf8532a AD |
158 | unsigned char transfer_cmd; |
159 | ||
160 | int (*mrq_handler)(struct memstick_dev *card, | |
161 | struct memstick_request **mrq); | |
162 | ||
496fc1a6 AD |
163 | |
164 | /* Default request setup function for data access method preferred by | |
165 | * this host instance. | |
166 | */ | |
167 | void (*setup_transfer)(struct memstick_dev *card, | |
168 | u64 offset, size_t length); | |
169 | ||
baf8532a AD |
170 | struct attribute_group attr_group; |
171 | ||
172 | struct scatterlist req_sg[MSPRO_BLOCK_MAX_SEGS]; | |
173 | unsigned int seg_count; | |
174 | unsigned int current_seg; | |
f1d82698 | 175 | unsigned int current_page; |
baf8532a AD |
176 | }; |
177 | ||
178 | static DEFINE_IDR(mspro_block_disk_idr); | |
179 | static DEFINE_MUTEX(mspro_block_disk_lock); | |
180 | ||
f1d82698 AD |
181 | static int mspro_block_complete_req(struct memstick_dev *card, int error); |
182 | ||
baf8532a AD |
183 | /*** Block device ***/ |
184 | ||
5d9a54b6 | 185 | static int mspro_block_bd_open(struct block_device *bdev, fmode_t mode) |
baf8532a | 186 | { |
5d9a54b6 | 187 | struct gendisk *disk = bdev->bd_disk; |
baf8532a AD |
188 | struct mspro_block_data *msb = disk->private_data; |
189 | int rc = -ENXIO; | |
190 | ||
191 | mutex_lock(&mspro_block_disk_lock); | |
192 | ||
193 | if (msb && msb->card) { | |
194 | msb->usage_count++; | |
5d9a54b6 | 195 | if ((mode & FMODE_WRITE) && msb->read_only) |
baf8532a AD |
196 | rc = -EROFS; |
197 | else | |
198 | rc = 0; | |
199 | } | |
200 | ||
201 | mutex_unlock(&mspro_block_disk_lock); | |
202 | ||
203 | return rc; | |
204 | } | |
205 | ||
206 | ||
db2a144b | 207 | static void mspro_block_disk_release(struct gendisk *disk) |
baf8532a AD |
208 | { |
209 | struct mspro_block_data *msb = disk->private_data; | |
f331c029 | 210 | int disk_id = MINOR(disk_devt(disk)) >> MSPRO_BLOCK_PART_SHIFT; |
baf8532a AD |
211 | |
212 | mutex_lock(&mspro_block_disk_lock); | |
213 | ||
f1d82698 AD |
214 | if (msb) { |
215 | if (msb->usage_count) | |
216 | msb->usage_count--; | |
217 | ||
baf8532a AD |
218 | if (!msb->usage_count) { |
219 | kfree(msb); | |
220 | disk->private_data = NULL; | |
221 | idr_remove(&mspro_block_disk_idr, disk_id); | |
222 | put_disk(disk); | |
223 | } | |
224 | } | |
225 | ||
226 | mutex_unlock(&mspro_block_disk_lock); | |
baf8532a AD |
227 | } |
228 | ||
db2a144b | 229 | static void mspro_block_bd_release(struct gendisk *disk, fmode_t mode) |
baf8532a | 230 | { |
db2a144b | 231 | mspro_block_disk_release(disk); |
baf8532a AD |
232 | } |
233 | ||
234 | static int mspro_block_bd_getgeo(struct block_device *bdev, | |
235 | struct hd_geometry *geo) | |
236 | { | |
237 | struct mspro_block_data *msb = bdev->bd_disk->private_data; | |
238 | ||
239 | geo->heads = msb->heads; | |
240 | geo->sectors = msb->sectors_per_track; | |
241 | geo->cylinders = msb->cylinders; | |
242 | ||
243 | return 0; | |
244 | } | |
245 | ||
83d5cde4 | 246 | static const struct block_device_operations ms_block_bdops = { |
5d9a54b6 AV |
247 | .open = mspro_block_bd_open, |
248 | .release = mspro_block_bd_release, | |
baf8532a AD |
249 | .getgeo = mspro_block_bd_getgeo, |
250 | .owner = THIS_MODULE | |
251 | }; | |
252 | ||
253 | /*** Information ***/ | |
254 | ||
255 | static struct mspro_sys_attr *mspro_from_sysfs_attr(struct attribute *attr) | |
256 | { | |
257 | struct device_attribute *dev_attr | |
258 | = container_of(attr, struct device_attribute, attr); | |
259 | return container_of(dev_attr, struct mspro_sys_attr, dev_attr); | |
260 | } | |
261 | ||
262 | static const char *mspro_block_attr_name(unsigned char tag) | |
263 | { | |
264 | switch (tag) { | |
265 | case MSPRO_BLOCK_ID_SYSINFO: | |
266 | return "attr_sysinfo"; | |
267 | case MSPRO_BLOCK_ID_MODELNAME: | |
268 | return "attr_modelname"; | |
269 | case MSPRO_BLOCK_ID_MBR: | |
270 | return "attr_mbr"; | |
271 | case MSPRO_BLOCK_ID_PBR16: | |
272 | return "attr_pbr16"; | |
273 | case MSPRO_BLOCK_ID_PBR32: | |
274 | return "attr_pbr32"; | |
275 | case MSPRO_BLOCK_ID_SPECFILEVALUES1: | |
276 | return "attr_specfilevalues1"; | |
277 | case MSPRO_BLOCK_ID_SPECFILEVALUES2: | |
278 | return "attr_specfilevalues2"; | |
279 | case MSPRO_BLOCK_ID_DEVINFO: | |
280 | return "attr_devinfo"; | |
281 | default: | |
282 | return NULL; | |
283 | }; | |
284 | } | |
285 | ||
286 | typedef ssize_t (*sysfs_show_t)(struct device *dev, | |
287 | struct device_attribute *attr, | |
288 | char *buffer); | |
289 | ||
290 | static ssize_t mspro_block_attr_show_default(struct device *dev, | |
291 | struct device_attribute *attr, | |
292 | char *buffer) | |
293 | { | |
294 | struct mspro_sys_attr *s_attr = container_of(attr, | |
295 | struct mspro_sys_attr, | |
296 | dev_attr); | |
297 | ||
298 | ssize_t cnt, rc = 0; | |
299 | ||
300 | for (cnt = 0; cnt < s_attr->size; cnt++) { | |
301 | if (cnt && !(cnt % 16)) { | |
302 | if (PAGE_SIZE - rc) | |
303 | buffer[rc++] = '\n'; | |
304 | } | |
305 | ||
306 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "%02x ", | |
307 | ((unsigned char *)s_attr->data)[cnt]); | |
308 | } | |
309 | return rc; | |
310 | } | |
311 | ||
312 | static ssize_t mspro_block_attr_show_sysinfo(struct device *dev, | |
313 | struct device_attribute *attr, | |
314 | char *buffer) | |
315 | { | |
316 | struct mspro_sys_attr *x_attr = container_of(attr, | |
317 | struct mspro_sys_attr, | |
318 | dev_attr); | |
319 | struct mspro_sys_info *x_sys = x_attr->data; | |
320 | ssize_t rc = 0; | |
251cc9b9 AD |
321 | int date_tz = 0, date_tz_f = 0; |
322 | ||
323 | if (x_sys->assembly_date[0] > 0x80U) { | |
324 | date_tz = (~x_sys->assembly_date[0]) + 1; | |
325 | date_tz_f = date_tz & 3; | |
326 | date_tz >>= 2; | |
327 | date_tz = -date_tz; | |
328 | date_tz_f *= 15; | |
329 | } else if (x_sys->assembly_date[0] < 0x80U) { | |
330 | date_tz = x_sys->assembly_date[0]; | |
331 | date_tz_f = date_tz & 3; | |
332 | date_tz >>= 2; | |
333 | date_tz_f *= 15; | |
334 | } | |
baf8532a AD |
335 | |
336 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "class: %x\n", | |
337 | x_sys->class); | |
338 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "block size: %x\n", | |
339 | be16_to_cpu(x_sys->block_size)); | |
340 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "block count: %x\n", | |
341 | be16_to_cpu(x_sys->block_count)); | |
342 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "user block count: %x\n", | |
343 | be16_to_cpu(x_sys->user_block_count)); | |
344 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "page size: %x\n", | |
345 | be16_to_cpu(x_sys->page_size)); | |
346 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "assembly date: " | |
251cc9b9 AD |
347 | "GMT%+d:%d %04u-%02u-%02u %02u:%02u:%02u\n", |
348 | date_tz, date_tz_f, | |
69347a23 | 349 | be16_to_cpup((__be16 *)&x_sys->assembly_date[1]), |
baf8532a AD |
350 | x_sys->assembly_date[3], x_sys->assembly_date[4], |
351 | x_sys->assembly_date[5], x_sys->assembly_date[6], | |
352 | x_sys->assembly_date[7]); | |
353 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "serial number: %x\n", | |
354 | be32_to_cpu(x_sys->serial_number)); | |
355 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, | |
356 | "assembly maker code: %x\n", | |
357 | x_sys->assembly_maker_code); | |
358 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "assembly model code: " | |
359 | "%02x%02x%02x\n", x_sys->assembly_model_code[0], | |
360 | x_sys->assembly_model_code[1], | |
361 | x_sys->assembly_model_code[2]); | |
362 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "memory maker code: %x\n", | |
363 | be16_to_cpu(x_sys->memory_maker_code)); | |
364 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "memory model code: %x\n", | |
365 | be16_to_cpu(x_sys->memory_model_code)); | |
366 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "vcc: %x\n", | |
367 | x_sys->vcc); | |
368 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "vpp: %x\n", | |
369 | x_sys->vpp); | |
370 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "controller number: %x\n", | |
371 | be16_to_cpu(x_sys->controller_number)); | |
372 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, | |
373 | "controller function: %x\n", | |
374 | be16_to_cpu(x_sys->controller_function)); | |
375 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sector: %x\n", | |
376 | be16_to_cpu(x_sys->start_sector)); | |
377 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "unit size: %x\n", | |
378 | be16_to_cpu(x_sys->unit_size)); | |
379 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "sub class: %x\n", | |
380 | x_sys->ms_sub_class); | |
381 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "interface type: %x\n", | |
382 | x_sys->interface_type); | |
383 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "controller code: %x\n", | |
384 | be16_to_cpu(x_sys->controller_code)); | |
385 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "format type: %x\n", | |
386 | x_sys->format_type); | |
387 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "device type: %x\n", | |
388 | x_sys->device_type); | |
389 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "mspro id: %s\n", | |
390 | x_sys->mspro_id); | |
391 | return rc; | |
392 | } | |
393 | ||
394 | static ssize_t mspro_block_attr_show_modelname(struct device *dev, | |
395 | struct device_attribute *attr, | |
396 | char *buffer) | |
397 | { | |
398 | struct mspro_sys_attr *s_attr = container_of(attr, | |
399 | struct mspro_sys_attr, | |
400 | dev_attr); | |
401 | ||
402 | return scnprintf(buffer, PAGE_SIZE, "%s", (char *)s_attr->data); | |
403 | } | |
404 | ||
405 | static ssize_t mspro_block_attr_show_mbr(struct device *dev, | |
406 | struct device_attribute *attr, | |
407 | char *buffer) | |
408 | { | |
409 | struct mspro_sys_attr *x_attr = container_of(attr, | |
410 | struct mspro_sys_attr, | |
411 | dev_attr); | |
412 | struct mspro_mbr *x_mbr = x_attr->data; | |
413 | ssize_t rc = 0; | |
414 | ||
415 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "boot partition: %x\n", | |
416 | x_mbr->boot_partition); | |
417 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start head: %x\n", | |
418 | x_mbr->start_head); | |
419 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sector: %x\n", | |
420 | x_mbr->start_sector); | |
421 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start cylinder: %x\n", | |
422 | x_mbr->start_cylinder); | |
423 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "partition type: %x\n", | |
424 | x_mbr->partition_type); | |
425 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end head: %x\n", | |
426 | x_mbr->end_head); | |
427 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end sector: %x\n", | |
428 | x_mbr->end_sector); | |
429 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end cylinder: %x\n", | |
430 | x_mbr->end_cylinder); | |
431 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sectors: %x\n", | |
432 | x_mbr->start_sectors); | |
433 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, | |
434 | "sectors per partition: %x\n", | |
435 | x_mbr->sectors_per_partition); | |
436 | return rc; | |
437 | } | |
438 | ||
efb2742e AD |
439 | static ssize_t mspro_block_attr_show_specfile(struct device *dev, |
440 | struct device_attribute *attr, | |
441 | char *buffer) | |
442 | { | |
443 | struct mspro_sys_attr *x_attr = container_of(attr, | |
444 | struct mspro_sys_attr, | |
445 | dev_attr); | |
446 | struct mspro_specfile *x_spfile = x_attr->data; | |
447 | char name[9], ext[4]; | |
448 | ssize_t rc = 0; | |
449 | ||
450 | memcpy(name, x_spfile->name, 8); | |
451 | name[8] = 0; | |
452 | memcpy(ext, x_spfile->ext, 3); | |
453 | ext[3] = 0; | |
454 | ||
455 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "name: %s\n", name); | |
456 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "ext: %s\n", ext); | |
457 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "attribute: %x\n", | |
458 | x_spfile->attr); | |
459 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "time: %d:%d:%d\n", | |
460 | x_spfile->time >> 11, | |
461 | (x_spfile->time >> 5) & 0x3f, | |
462 | (x_spfile->time & 0x1f) * 2); | |
463 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "date: %d-%d-%d\n", | |
464 | (x_spfile->date >> 9) + 1980, | |
465 | (x_spfile->date >> 5) & 0xf, | |
466 | x_spfile->date & 0x1f); | |
467 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start cluster: %x\n", | |
468 | x_spfile->cluster); | |
469 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "size: %x\n", | |
470 | x_spfile->size); | |
471 | return rc; | |
472 | } | |
473 | ||
baf8532a AD |
474 | static ssize_t mspro_block_attr_show_devinfo(struct device *dev, |
475 | struct device_attribute *attr, | |
476 | char *buffer) | |
477 | { | |
478 | struct mspro_sys_attr *x_attr = container_of(attr, | |
479 | struct mspro_sys_attr, | |
480 | dev_attr); | |
481 | struct mspro_devinfo *x_devinfo = x_attr->data; | |
482 | ssize_t rc = 0; | |
483 | ||
484 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "cylinders: %x\n", | |
485 | be16_to_cpu(x_devinfo->cylinders)); | |
486 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "heads: %x\n", | |
487 | be16_to_cpu(x_devinfo->heads)); | |
488 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "bytes per track: %x\n", | |
489 | be16_to_cpu(x_devinfo->bytes_per_track)); | |
490 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "bytes per sector: %x\n", | |
491 | be16_to_cpu(x_devinfo->bytes_per_sector)); | |
492 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "sectors per track: %x\n", | |
493 | be16_to_cpu(x_devinfo->sectors_per_track)); | |
494 | return rc; | |
495 | } | |
496 | ||
497 | static sysfs_show_t mspro_block_attr_show(unsigned char tag) | |
498 | { | |
499 | switch (tag) { | |
500 | case MSPRO_BLOCK_ID_SYSINFO: | |
501 | return mspro_block_attr_show_sysinfo; | |
502 | case MSPRO_BLOCK_ID_MODELNAME: | |
503 | return mspro_block_attr_show_modelname; | |
504 | case MSPRO_BLOCK_ID_MBR: | |
505 | return mspro_block_attr_show_mbr; | |
efb2742e AD |
506 | case MSPRO_BLOCK_ID_SPECFILEVALUES1: |
507 | case MSPRO_BLOCK_ID_SPECFILEVALUES2: | |
508 | return mspro_block_attr_show_specfile; | |
baf8532a AD |
509 | case MSPRO_BLOCK_ID_DEVINFO: |
510 | return mspro_block_attr_show_devinfo; | |
511 | default: | |
512 | return mspro_block_attr_show_default; | |
513 | } | |
514 | } | |
515 | ||
516 | /*** Protocol handlers ***/ | |
517 | ||
518 | /* | |
519 | * Functions prefixed with "h_" are protocol callbacks. They can be called from | |
520 | * interrupt context. Return value of 0 means that request processing is still | |
521 | * ongoing, while special error value of -EAGAIN means that current request is | |
522 | * finished (and request processor should come back some time later). | |
523 | */ | |
524 | ||
525 | static int h_mspro_block_req_init(struct memstick_dev *card, | |
526 | struct memstick_request **mrq) | |
527 | { | |
528 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
529 | ||
530 | *mrq = &card->current_mrq; | |
531 | card->next_request = msb->mrq_handler; | |
532 | return 0; | |
533 | } | |
534 | ||
535 | static int h_mspro_block_default(struct memstick_dev *card, | |
536 | struct memstick_request **mrq) | |
537 | { | |
f1d82698 AD |
538 | return mspro_block_complete_req(card, (*mrq)->error); |
539 | } | |
540 | ||
541 | static int h_mspro_block_default_bad(struct memstick_dev *card, | |
542 | struct memstick_request **mrq) | |
543 | { | |
544 | return -ENXIO; | |
baf8532a AD |
545 | } |
546 | ||
547 | static int h_mspro_block_get_ro(struct memstick_dev *card, | |
548 | struct memstick_request **mrq) | |
549 | { | |
550 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
551 | ||
f1d82698 AD |
552 | if (!(*mrq)->error) { |
553 | if ((*mrq)->data[offsetof(struct ms_status_register, status0)] | |
554 | & MEMSTICK_STATUS0_WP) | |
555 | msb->read_only = 1; | |
556 | else | |
557 | msb->read_only = 0; | |
baf8532a AD |
558 | } |
559 | ||
f1d82698 | 560 | return mspro_block_complete_req(card, (*mrq)->error); |
baf8532a AD |
561 | } |
562 | ||
563 | static int h_mspro_block_wait_for_ced(struct memstick_dev *card, | |
564 | struct memstick_request **mrq) | |
565 | { | |
baf8532a AD |
566 | dev_dbg(&card->dev, "wait for ced: value %x\n", (*mrq)->data[0]); |
567 | ||
f1d82698 AD |
568 | if (!(*mrq)->error) { |
569 | if ((*mrq)->data[0] & (MEMSTICK_INT_CMDNAK | MEMSTICK_INT_ERR)) | |
570 | (*mrq)->error = -EFAULT; | |
571 | else if (!((*mrq)->data[0] & MEMSTICK_INT_CED)) | |
572 | return 0; | |
baf8532a AD |
573 | } |
574 | ||
f1d82698 | 575 | return mspro_block_complete_req(card, (*mrq)->error); |
baf8532a AD |
576 | } |
577 | ||
578 | static int h_mspro_block_transfer_data(struct memstick_dev *card, | |
579 | struct memstick_request **mrq) | |
580 | { | |
baf8532a AD |
581 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
582 | unsigned char t_val = 0; | |
583 | struct scatterlist t_sg = { 0 }; | |
584 | size_t t_offset; | |
585 | ||
f1d82698 AD |
586 | if ((*mrq)->error) |
587 | return mspro_block_complete_req(card, (*mrq)->error); | |
baf8532a AD |
588 | |
589 | switch ((*mrq)->tpc) { | |
590 | case MS_TPC_WRITE_REG: | |
591 | memstick_init_req(*mrq, MS_TPC_SET_CMD, &msb->transfer_cmd, 1); | |
ead70773 | 592 | (*mrq)->need_card_int = 1; |
baf8532a AD |
593 | return 0; |
594 | case MS_TPC_SET_CMD: | |
595 | t_val = (*mrq)->int_reg; | |
596 | memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1); | |
ead70773 | 597 | if (msb->caps & MEMSTICK_CAP_AUTO_GET_INT) |
baf8532a AD |
598 | goto has_int_reg; |
599 | return 0; | |
600 | case MS_TPC_GET_INT: | |
601 | t_val = (*mrq)->data[0]; | |
602 | has_int_reg: | |
603 | if (t_val & (MEMSTICK_INT_CMDNAK | MEMSTICK_INT_ERR)) { | |
604 | t_val = MSPRO_CMD_STOP; | |
605 | memstick_init_req(*mrq, MS_TPC_SET_CMD, &t_val, 1); | |
606 | card->next_request = h_mspro_block_default; | |
607 | return 0; | |
608 | } | |
609 | ||
610 | if (msb->current_page | |
611 | == (msb->req_sg[msb->current_seg].length | |
612 | / msb->page_size)) { | |
613 | msb->current_page = 0; | |
614 | msb->current_seg++; | |
615 | ||
616 | if (msb->current_seg == msb->seg_count) { | |
617 | if (t_val & MEMSTICK_INT_CED) { | |
f1d82698 AD |
618 | return mspro_block_complete_req(card, |
619 | 0); | |
baf8532a AD |
620 | } else { |
621 | card->next_request | |
622 | = h_mspro_block_wait_for_ced; | |
623 | memstick_init_req(*mrq, MS_TPC_GET_INT, | |
624 | NULL, 1); | |
625 | return 0; | |
626 | } | |
627 | } | |
628 | } | |
629 | ||
630 | if (!(t_val & MEMSTICK_INT_BREQ)) { | |
631 | memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1); | |
632 | return 0; | |
633 | } | |
634 | ||
635 | t_offset = msb->req_sg[msb->current_seg].offset; | |
636 | t_offset += msb->current_page * msb->page_size; | |
637 | ||
638 | sg_set_page(&t_sg, | |
639 | nth_page(sg_page(&(msb->req_sg[msb->current_seg])), | |
640 | t_offset >> PAGE_SHIFT), | |
641 | msb->page_size, offset_in_page(t_offset)); | |
642 | ||
643 | memstick_init_req_sg(*mrq, msb->data_dir == READ | |
644 | ? MS_TPC_READ_LONG_DATA | |
645 | : MS_TPC_WRITE_LONG_DATA, | |
646 | &t_sg); | |
ead70773 | 647 | (*mrq)->need_card_int = 1; |
baf8532a AD |
648 | return 0; |
649 | case MS_TPC_READ_LONG_DATA: | |
650 | case MS_TPC_WRITE_LONG_DATA: | |
651 | msb->current_page++; | |
ead70773 | 652 | if (msb->caps & MEMSTICK_CAP_AUTO_GET_INT) { |
baf8532a AD |
653 | t_val = (*mrq)->int_reg; |
654 | goto has_int_reg; | |
655 | } else { | |
656 | memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1); | |
657 | return 0; | |
658 | } | |
659 | ||
660 | default: | |
661 | BUG(); | |
662 | } | |
663 | } | |
664 | ||
496fc1a6 AD |
665 | /*** Transfer setup functions for different access methods. ***/ |
666 | ||
667 | /** Setup data transfer request for SET_CMD TPC with arguments in card | |
668 | * registers. | |
669 | * | |
670 | * @card Current media instance | |
671 | * @offset Target data offset in bytes | |
672 | * @length Required transfer length in bytes. | |
673 | */ | |
674 | static void h_mspro_block_setup_cmd(struct memstick_dev *card, u64 offset, | |
675 | size_t length) | |
676 | { | |
677 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
678 | struct mspro_param_register param = { | |
679 | .system = msb->system, | |
680 | .data_count = cpu_to_be16((uint16_t)(length / msb->page_size)), | |
681 | /* ISO C90 warning precludes direct initialization for now. */ | |
682 | .data_address = 0, | |
683 | .tpc_param = 0 | |
684 | }; | |
685 | ||
686 | do_div(offset, msb->page_size); | |
687 | param.data_address = cpu_to_be32((uint32_t)offset); | |
688 | ||
689 | card->next_request = h_mspro_block_req_init; | |
690 | msb->mrq_handler = h_mspro_block_transfer_data; | |
691 | memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, | |
692 | ¶m, sizeof(param)); | |
693 | } | |
694 | ||
baf8532a AD |
695 | /*** Data transfer ***/ |
696 | ||
f1d82698 | 697 | static int mspro_block_issue_req(struct memstick_dev *card, int chunk) |
baf8532a AD |
698 | { |
699 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
496fc1a6 | 700 | u64 t_off; |
f1d82698 | 701 | unsigned int count; |
baf8532a | 702 | |
f1d82698 AD |
703 | try_again: |
704 | while (chunk) { | |
705 | msb->current_page = 0; | |
baf8532a | 706 | msb->current_seg = 0; |
f1d82698 AD |
707 | msb->seg_count = blk_rq_map_sg(msb->block_req->q, |
708 | msb->block_req, | |
709 | msb->req_sg); | |
baf8532a | 710 | |
f1d82698 | 711 | if (!msb->seg_count) { |
296b2f6a | 712 | chunk = __blk_end_request_cur(msb->block_req, -ENOMEM); |
f1d82698 AD |
713 | continue; |
714 | } | |
baf8532a | 715 | |
496fc1a6 AD |
716 | t_off = blk_rq_pos(msb->block_req); |
717 | t_off <<= 9; | |
1011c1b9 | 718 | count = blk_rq_bytes(msb->block_req); |
baf8532a | 719 | |
496fc1a6 | 720 | msb->setup_transfer(card, t_off, count); |
f1d82698 AD |
721 | |
722 | msb->data_dir = rq_data_dir(msb->block_req); | |
723 | msb->transfer_cmd = msb->data_dir == READ | |
724 | ? MSPRO_CMD_READ_DATA | |
725 | : MSPRO_CMD_WRITE_DATA; | |
726 | ||
f1d82698 AD |
727 | memstick_new_req(card->host); |
728 | return 0; | |
729 | } | |
730 | ||
9934c8c0 TH |
731 | dev_dbg(&card->dev, "blk_fetch\n"); |
732 | msb->block_req = blk_fetch_request(msb->queue); | |
f1d82698 AD |
733 | if (!msb->block_req) { |
734 | dev_dbg(&card->dev, "issue end\n"); | |
735 | return -EAGAIN; | |
736 | } | |
737 | ||
738 | dev_dbg(&card->dev, "trying again\n"); | |
739 | chunk = 1; | |
740 | goto try_again; | |
baf8532a AD |
741 | } |
742 | ||
f1d82698 | 743 | static int mspro_block_complete_req(struct memstick_dev *card, int error) |
baf8532a | 744 | { |
f1d82698 AD |
745 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
746 | int chunk, cnt; | |
747 | unsigned int t_len = 0; | |
baf8532a AD |
748 | unsigned long flags; |
749 | ||
750 | spin_lock_irqsave(&msb->q_lock, flags); | |
f1d82698 AD |
751 | dev_dbg(&card->dev, "complete %d, %d\n", msb->has_request ? 1 : 0, |
752 | error); | |
753 | ||
754 | if (msb->has_request) { | |
755 | /* Nothing to do - not really an error */ | |
756 | if (error == -EAGAIN) | |
757 | error = 0; | |
758 | ||
759 | if (error || (card->current_mrq.tpc == MSPRO_CMD_STOP)) { | |
760 | if (msb->data_dir == READ) { | |
761 | for (cnt = 0; cnt < msb->current_seg; cnt++) | |
762 | t_len += msb->req_sg[cnt].length | |
763 | / msb->page_size; | |
764 | ||
765 | if (msb->current_page) | |
766 | t_len += msb->current_page - 1; | |
767 | ||
768 | t_len *= msb->page_size; | |
769 | } | |
770 | } else | |
1011c1b9 | 771 | t_len = blk_rq_bytes(msb->block_req); |
f1d82698 AD |
772 | |
773 | dev_dbg(&card->dev, "transferred %x (%d)\n", t_len, error); | |
774 | ||
775 | if (error && !t_len) | |
776 | t_len = blk_rq_cur_bytes(msb->block_req); | |
777 | ||
778 | chunk = __blk_end_request(msb->block_req, error, t_len); | |
779 | ||
780 | error = mspro_block_issue_req(card, chunk); | |
781 | ||
782 | if (!error) | |
783 | goto out; | |
784 | else | |
785 | msb->has_request = 0; | |
786 | } else { | |
787 | if (!error) | |
788 | error = -EAGAIN; | |
789 | } | |
790 | ||
791 | card->next_request = h_mspro_block_default_bad; | |
792 | complete_all(&card->mrq_complete); | |
793 | out: | |
baf8532a | 794 | spin_unlock_irqrestore(&msb->q_lock, flags); |
f1d82698 | 795 | return error; |
baf8532a AD |
796 | } |
797 | ||
17017d8d AD |
798 | static void mspro_block_stop(struct memstick_dev *card) |
799 | { | |
800 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
801 | int rc = 0; | |
802 | unsigned long flags; | |
803 | ||
804 | while (1) { | |
805 | spin_lock_irqsave(&msb->q_lock, flags); | |
806 | if (!msb->has_request) { | |
807 | blk_stop_queue(msb->queue); | |
808 | rc = 1; | |
809 | } | |
810 | spin_unlock_irqrestore(&msb->q_lock, flags); | |
811 | ||
812 | if (rc) | |
813 | break; | |
814 | ||
815 | wait_for_completion(&card->mrq_complete); | |
816 | } | |
817 | } | |
818 | ||
819 | static void mspro_block_start(struct memstick_dev *card) | |
820 | { | |
821 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
822 | unsigned long flags; | |
823 | ||
824 | spin_lock_irqsave(&msb->q_lock, flags); | |
825 | blk_start_queue(msb->queue); | |
826 | spin_unlock_irqrestore(&msb->q_lock, flags); | |
827 | } | |
828 | ||
f1d82698 | 829 | static int mspro_block_prepare_req(struct request_queue *q, struct request *req) |
baf8532a | 830 | { |
33659ebb CH |
831 | if (req->cmd_type != REQ_TYPE_FS && |
832 | req->cmd_type != REQ_TYPE_BLOCK_PC) { | |
f1d82698 AD |
833 | blk_dump_rq_flags(req, "MSPro unsupported request"); |
834 | return BLKPREP_KILL; | |
835 | } | |
baf8532a | 836 | |
f1d82698 | 837 | req->cmd_flags |= REQ_DONTPREP; |
baf8532a | 838 | |
f1d82698 | 839 | return BLKPREP_OK; |
baf8532a AD |
840 | } |
841 | ||
f1d82698 | 842 | static void mspro_block_submit_req(struct request_queue *q) |
baf8532a AD |
843 | { |
844 | struct memstick_dev *card = q->queuedata; | |
845 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
846 | struct request *req = NULL; | |
847 | ||
f1d82698 AD |
848 | if (msb->has_request) |
849 | return; | |
850 | ||
851 | if (msb->eject) { | |
9934c8c0 | 852 | while ((req = blk_fetch_request(q)) != NULL) |
40cbbb78 | 853 | __blk_end_request_all(req, -ENODEV); |
f1d82698 AD |
854 | |
855 | return; | |
baf8532a | 856 | } |
f1d82698 AD |
857 | |
858 | msb->has_request = 1; | |
859 | if (mspro_block_issue_req(card, 0)) | |
860 | msb->has_request = 0; | |
baf8532a AD |
861 | } |
862 | ||
863 | /*** Initialization ***/ | |
864 | ||
865 | static int mspro_block_wait_for_ced(struct memstick_dev *card) | |
866 | { | |
867 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
868 | ||
869 | card->next_request = h_mspro_block_req_init; | |
870 | msb->mrq_handler = h_mspro_block_wait_for_ced; | |
871 | memstick_init_req(&card->current_mrq, MS_TPC_GET_INT, NULL, 1); | |
872 | memstick_new_req(card->host); | |
873 | wait_for_completion(&card->mrq_complete); | |
874 | return card->current_mrq.error; | |
875 | } | |
876 | ||
962ee1b1 AD |
877 | static int mspro_block_set_interface(struct memstick_dev *card, |
878 | unsigned char sys_reg) | |
baf8532a AD |
879 | { |
880 | struct memstick_host *host = card->host; | |
881 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
882 | struct mspro_param_register param = { | |
962ee1b1 | 883 | .system = sys_reg, |
baf8532a AD |
884 | .data_count = 0, |
885 | .data_address = 0, | |
e1f19995 | 886 | .tpc_param = 0 |
baf8532a AD |
887 | }; |
888 | ||
889 | card->next_request = h_mspro_block_req_init; | |
890 | msb->mrq_handler = h_mspro_block_default; | |
891 | memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, ¶m, | |
892 | sizeof(param)); | |
893 | memstick_new_req(host); | |
894 | wait_for_completion(&card->mrq_complete); | |
962ee1b1 AD |
895 | return card->current_mrq.error; |
896 | } | |
897 | ||
898 | static int mspro_block_switch_interface(struct memstick_dev *card) | |
899 | { | |
900 | struct memstick_host *host = card->host; | |
901 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
902 | int rc = 0; | |
903 | ||
8e82f8c3 | 904 | try_again: |
962ee1b1 AD |
905 | if (msb->caps & MEMSTICK_CAP_PAR4) |
906 | rc = mspro_block_set_interface(card, MEMSTICK_SYS_PAR4); | |
907 | else | |
908 | return 0; | |
909 | ||
910 | if (rc) { | |
911 | printk(KERN_WARNING | |
912 | "%s: could not switch to 4-bit mode, error %d\n", | |
0252c3b4 | 913 | dev_name(&card->dev), rc); |
962ee1b1 AD |
914 | return 0; |
915 | } | |
baf8532a | 916 | |
e1f19995 AD |
917 | msb->system = MEMSTICK_SYS_PAR4; |
918 | host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_PAR4); | |
962ee1b1 | 919 | printk(KERN_INFO "%s: switching to 4-bit parallel mode\n", |
0252c3b4 | 920 | dev_name(&card->dev)); |
962ee1b1 AD |
921 | |
922 | if (msb->caps & MEMSTICK_CAP_PAR8) { | |
923 | rc = mspro_block_set_interface(card, MEMSTICK_SYS_PAR8); | |
924 | ||
925 | if (!rc) { | |
926 | msb->system = MEMSTICK_SYS_PAR8; | |
927 | host->set_param(host, MEMSTICK_INTERFACE, | |
928 | MEMSTICK_PAR8); | |
929 | printk(KERN_INFO | |
930 | "%s: switching to 8-bit parallel mode\n", | |
0252c3b4 | 931 | dev_name(&card->dev)); |
962ee1b1 AD |
932 | } else |
933 | printk(KERN_WARNING | |
934 | "%s: could not switch to 8-bit mode, error %d\n", | |
0252c3b4 | 935 | dev_name(&card->dev), rc); |
962ee1b1 | 936 | } |
baf8532a AD |
937 | |
938 | card->next_request = h_mspro_block_req_init; | |
939 | msb->mrq_handler = h_mspro_block_default; | |
940 | memstick_init_req(&card->current_mrq, MS_TPC_GET_INT, NULL, 1); | |
941 | memstick_new_req(card->host); | |
942 | wait_for_completion(&card->mrq_complete); | |
962ee1b1 | 943 | rc = card->current_mrq.error; |
baf8532a | 944 | |
962ee1b1 AD |
945 | if (rc) { |
946 | printk(KERN_WARNING | |
947 | "%s: interface error, trying to fall back to serial\n", | |
0252c3b4 | 948 | dev_name(&card->dev)); |
59367258 AD |
949 | msb->system = MEMSTICK_SYS_SERIAL; |
950 | host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_OFF); | |
962ee1b1 | 951 | msleep(10); |
59367258 | 952 | host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_ON); |
baf8532a | 953 | host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_SERIAL); |
59367258 | 954 | |
962ee1b1 AD |
955 | rc = memstick_set_rw_addr(card); |
956 | if (!rc) | |
957 | rc = mspro_block_set_interface(card, msb->system); | |
8e82f8c3 AD |
958 | |
959 | if (!rc) { | |
960 | msleep(150); | |
961 | rc = mspro_block_wait_for_ced(card); | |
962 | if (rc) | |
963 | return rc; | |
964 | ||
965 | if (msb->caps & MEMSTICK_CAP_PAR8) { | |
966 | msb->caps &= ~MEMSTICK_CAP_PAR8; | |
967 | goto try_again; | |
968 | } | |
969 | } | |
baf8532a | 970 | } |
962ee1b1 | 971 | return rc; |
baf8532a AD |
972 | } |
973 | ||
974 | /* Memory allocated for attributes by this function should be freed by | |
25985edc | 975 | * mspro_block_data_clear, no matter if the initialization process succeeded |
baf8532a AD |
976 | * or failed. |
977 | */ | |
978 | static int mspro_block_read_attributes(struct memstick_dev *card) | |
979 | { | |
980 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
baf8532a AD |
981 | struct mspro_attribute *attr = NULL; |
982 | struct mspro_sys_attr *s_attr = NULL; | |
983 | unsigned char *buffer = NULL; | |
984 | int cnt, rc, attr_count; | |
496fc1a6 AD |
985 | /* While normally physical device offsets, represented here by |
986 | * attr_offset and attr_len will be of large numeric types, we can be | |
987 | * sure, that attributes are close enough to the beginning of the | |
988 | * device, to save ourselves some trouble. | |
989 | */ | |
990 | unsigned int addr, attr_offset = 0, attr_len = msb->page_size; | |
baf8532a AD |
991 | |
992 | attr = kmalloc(msb->page_size, GFP_KERNEL); | |
993 | if (!attr) | |
994 | return -ENOMEM; | |
995 | ||
996 | sg_init_one(&msb->req_sg[0], attr, msb->page_size); | |
997 | msb->seg_count = 1; | |
998 | msb->current_seg = 0; | |
999 | msb->current_page = 0; | |
1000 | msb->data_dir = READ; | |
1001 | msb->transfer_cmd = MSPRO_CMD_READ_ATRB; | |
1002 | ||
496fc1a6 AD |
1003 | msb->setup_transfer(card, attr_offset, attr_len); |
1004 | ||
baf8532a AD |
1005 | memstick_new_req(card->host); |
1006 | wait_for_completion(&card->mrq_complete); | |
1007 | if (card->current_mrq.error) { | |
1008 | rc = card->current_mrq.error; | |
1009 | goto out_free_attr; | |
1010 | } | |
1011 | ||
1012 | if (be16_to_cpu(attr->signature) != MSPRO_BLOCK_SIGNATURE) { | |
1013 | printk(KERN_ERR "%s: unrecognized device signature %x\n", | |
0252c3b4 | 1014 | dev_name(&card->dev), be16_to_cpu(attr->signature)); |
baf8532a AD |
1015 | rc = -ENODEV; |
1016 | goto out_free_attr; | |
1017 | } | |
1018 | ||
1019 | if (attr->count > MSPRO_BLOCK_MAX_ATTRIBUTES) { | |
1020 | printk(KERN_WARNING "%s: way too many attribute entries\n", | |
0252c3b4 | 1021 | dev_name(&card->dev)); |
baf8532a AD |
1022 | attr_count = MSPRO_BLOCK_MAX_ATTRIBUTES; |
1023 | } else | |
1024 | attr_count = attr->count; | |
1025 | ||
1026 | msb->attr_group.attrs = kzalloc((attr_count + 1) | |
1027 | * sizeof(struct attribute), | |
1028 | GFP_KERNEL); | |
1029 | if (!msb->attr_group.attrs) { | |
1030 | rc = -ENOMEM; | |
1031 | goto out_free_attr; | |
1032 | } | |
1033 | msb->attr_group.name = "media_attributes"; | |
1034 | ||
496fc1a6 | 1035 | buffer = kmalloc(attr_len, GFP_KERNEL); |
baf8532a AD |
1036 | if (!buffer) { |
1037 | rc = -ENOMEM; | |
1038 | goto out_free_attr; | |
1039 | } | |
496fc1a6 | 1040 | memcpy(buffer, (char *)attr, attr_len); |
baf8532a AD |
1041 | |
1042 | for (cnt = 0; cnt < attr_count; ++cnt) { | |
1043 | s_attr = kzalloc(sizeof(struct mspro_sys_attr), GFP_KERNEL); | |
1044 | if (!s_attr) { | |
1045 | rc = -ENOMEM; | |
1046 | goto out_free_buffer; | |
1047 | } | |
1048 | ||
1049 | msb->attr_group.attrs[cnt] = &s_attr->dev_attr.attr; | |
1050 | addr = be32_to_cpu(attr->entries[cnt].address); | |
496fc1a6 | 1051 | s_attr->size = be32_to_cpu(attr->entries[cnt].size); |
baf8532a | 1052 | dev_dbg(&card->dev, "adding attribute %d: id %x, address %x, " |
496fc1a6 AD |
1053 | "size %zx\n", cnt, attr->entries[cnt].id, addr, |
1054 | s_attr->size); | |
baf8532a AD |
1055 | s_attr->id = attr->entries[cnt].id; |
1056 | if (mspro_block_attr_name(s_attr->id)) | |
1057 | snprintf(s_attr->name, sizeof(s_attr->name), "%s", | |
1058 | mspro_block_attr_name(attr->entries[cnt].id)); | |
1059 | else | |
1060 | snprintf(s_attr->name, sizeof(s_attr->name), | |
1061 | "attr_x%02x", attr->entries[cnt].id); | |
1062 | ||
21fd0495 | 1063 | sysfs_attr_init(&s_attr->dev_attr.attr); |
baf8532a AD |
1064 | s_attr->dev_attr.attr.name = s_attr->name; |
1065 | s_attr->dev_attr.attr.mode = S_IRUGO; | |
baf8532a AD |
1066 | s_attr->dev_attr.show = mspro_block_attr_show(s_attr->id); |
1067 | ||
496fc1a6 | 1068 | if (!s_attr->size) |
baf8532a AD |
1069 | continue; |
1070 | ||
496fc1a6 | 1071 | s_attr->data = kmalloc(s_attr->size, GFP_KERNEL); |
baf8532a AD |
1072 | if (!s_attr->data) { |
1073 | rc = -ENOMEM; | |
1074 | goto out_free_buffer; | |
1075 | } | |
1076 | ||
496fc1a6 AD |
1077 | if (((addr / msb->page_size) == (attr_offset / msb->page_size)) |
1078 | && (((addr + s_attr->size - 1) / msb->page_size) | |
1079 | == (attr_offset / msb->page_size))) { | |
baf8532a | 1080 | memcpy(s_attr->data, buffer + addr % msb->page_size, |
496fc1a6 | 1081 | s_attr->size); |
baf8532a AD |
1082 | continue; |
1083 | } | |
1084 | ||
496fc1a6 AD |
1085 | attr_offset = (addr / msb->page_size) * msb->page_size; |
1086 | ||
1087 | if ((attr_offset + attr_len) < (addr + s_attr->size)) { | |
baf8532a | 1088 | kfree(buffer); |
496fc1a6 AD |
1089 | attr_len = (((addr + s_attr->size) / msb->page_size) |
1090 | + 1 ) * msb->page_size - attr_offset; | |
1091 | buffer = kmalloc(attr_len, GFP_KERNEL); | |
baf8532a AD |
1092 | if (!buffer) { |
1093 | rc = -ENOMEM; | |
1094 | goto out_free_attr; | |
1095 | } | |
1096 | } | |
1097 | ||
496fc1a6 | 1098 | sg_init_one(&msb->req_sg[0], buffer, attr_len); |
baf8532a AD |
1099 | msb->seg_count = 1; |
1100 | msb->current_seg = 0; | |
1101 | msb->current_page = 0; | |
1102 | msb->data_dir = READ; | |
1103 | msb->transfer_cmd = MSPRO_CMD_READ_ATRB; | |
1104 | ||
496fc1a6 AD |
1105 | dev_dbg(&card->dev, "reading attribute range %x, %x\n", |
1106 | attr_offset, attr_len); | |
baf8532a | 1107 | |
496fc1a6 | 1108 | msb->setup_transfer(card, attr_offset, attr_len); |
baf8532a AD |
1109 | memstick_new_req(card->host); |
1110 | wait_for_completion(&card->mrq_complete); | |
1111 | if (card->current_mrq.error) { | |
1112 | rc = card->current_mrq.error; | |
1113 | goto out_free_buffer; | |
1114 | } | |
1115 | ||
496fc1a6 AD |
1116 | memcpy(s_attr->data, buffer + addr % msb->page_size, |
1117 | s_attr->size); | |
baf8532a AD |
1118 | } |
1119 | ||
1120 | rc = 0; | |
1121 | out_free_buffer: | |
1122 | kfree(buffer); | |
1123 | out_free_attr: | |
1124 | kfree(attr); | |
1125 | return rc; | |
1126 | } | |
1127 | ||
1128 | static int mspro_block_init_card(struct memstick_dev *card) | |
1129 | { | |
1130 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
1131 | struct memstick_host *host = card->host; | |
1132 | int rc = 0; | |
1133 | ||
e1f19995 | 1134 | msb->system = MEMSTICK_SYS_SERIAL; |
496fc1a6 AD |
1135 | msb->setup_transfer = h_mspro_block_setup_cmd; |
1136 | ||
baf8532a AD |
1137 | card->reg_addr.r_offset = offsetof(struct mspro_register, status); |
1138 | card->reg_addr.r_length = sizeof(struct ms_status_register); | |
1139 | card->reg_addr.w_offset = offsetof(struct mspro_register, param); | |
1140 | card->reg_addr.w_length = sizeof(struct mspro_param_register); | |
1141 | ||
1142 | if (memstick_set_rw_addr(card)) | |
1143 | return -EIO; | |
1144 | ||
ead70773 | 1145 | msb->caps = host->caps; |
8e82f8c3 AD |
1146 | |
1147 | msleep(150); | |
1148 | rc = mspro_block_wait_for_ced(card); | |
962ee1b1 AD |
1149 | if (rc) |
1150 | return rc; | |
baf8532a | 1151 | |
8e82f8c3 | 1152 | rc = mspro_block_switch_interface(card); |
baf8532a AD |
1153 | if (rc) |
1154 | return rc; | |
8e82f8c3 | 1155 | |
baf8532a | 1156 | dev_dbg(&card->dev, "card activated\n"); |
ead70773 AD |
1157 | if (msb->system != MEMSTICK_SYS_SERIAL) |
1158 | msb->caps |= MEMSTICK_CAP_AUTO_GET_INT; | |
baf8532a AD |
1159 | |
1160 | card->next_request = h_mspro_block_req_init; | |
1161 | msb->mrq_handler = h_mspro_block_get_ro; | |
1162 | memstick_init_req(&card->current_mrq, MS_TPC_READ_REG, NULL, | |
1163 | sizeof(struct ms_status_register)); | |
1164 | memstick_new_req(card->host); | |
1165 | wait_for_completion(&card->mrq_complete); | |
1166 | if (card->current_mrq.error) | |
1167 | return card->current_mrq.error; | |
1168 | ||
1169 | dev_dbg(&card->dev, "card r/w status %d\n", msb->read_only ? 0 : 1); | |
1170 | ||
1171 | msb->page_size = 512; | |
1172 | rc = mspro_block_read_attributes(card); | |
1173 | if (rc) | |
1174 | return rc; | |
1175 | ||
1176 | dev_dbg(&card->dev, "attributes loaded\n"); | |
1177 | return 0; | |
1178 | ||
1179 | } | |
1180 | ||
1181 | static int mspro_block_init_disk(struct memstick_dev *card) | |
1182 | { | |
1183 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
1184 | struct memstick_host *host = card->host; | |
1185 | struct mspro_devinfo *dev_info = NULL; | |
1186 | struct mspro_sys_info *sys_info = NULL; | |
1187 | struct mspro_sys_attr *s_attr = NULL; | |
1188 | int rc, disk_id; | |
1189 | u64 limit = BLK_BOUNCE_HIGH; | |
1190 | unsigned long capacity; | |
1191 | ||
c4c66cf1 GKH |
1192 | if (host->dev.dma_mask && *(host->dev.dma_mask)) |
1193 | limit = *(host->dev.dma_mask); | |
baf8532a AD |
1194 | |
1195 | for (rc = 0; msb->attr_group.attrs[rc]; ++rc) { | |
1196 | s_attr = mspro_from_sysfs_attr(msb->attr_group.attrs[rc]); | |
1197 | ||
1198 | if (s_attr->id == MSPRO_BLOCK_ID_DEVINFO) | |
1199 | dev_info = s_attr->data; | |
1200 | else if (s_attr->id == MSPRO_BLOCK_ID_SYSINFO) | |
1201 | sys_info = s_attr->data; | |
1202 | } | |
1203 | ||
1204 | if (!dev_info || !sys_info) | |
1205 | return -ENODEV; | |
1206 | ||
1207 | msb->cylinders = be16_to_cpu(dev_info->cylinders); | |
1208 | msb->heads = be16_to_cpu(dev_info->heads); | |
1209 | msb->sectors_per_track = be16_to_cpu(dev_info->sectors_per_track); | |
1210 | ||
1211 | msb->page_size = be16_to_cpu(sys_info->unit_size); | |
1212 | ||
d8256d48 | 1213 | mutex_lock(&mspro_block_disk_lock); |
7b51f478 | 1214 | disk_id = idr_alloc(&mspro_block_disk_idr, card, 0, 256, GFP_KERNEL); |
baf8532a | 1215 | mutex_unlock(&mspro_block_disk_lock); |
7b51f478 TH |
1216 | if (disk_id < 0) |
1217 | return disk_id; | |
baf8532a | 1218 | |
8e82f8c3 | 1219 | msb->disk = alloc_disk(1 << MSPRO_BLOCK_PART_SHIFT); |
baf8532a AD |
1220 | if (!msb->disk) { |
1221 | rc = -ENOMEM; | |
1222 | goto out_release_id; | |
1223 | } | |
1224 | ||
f1d82698 | 1225 | msb->queue = blk_init_queue(mspro_block_submit_req, &msb->q_lock); |
baf8532a AD |
1226 | if (!msb->queue) { |
1227 | rc = -ENOMEM; | |
1228 | goto out_put_disk; | |
1229 | } | |
1230 | ||
1231 | msb->queue->queuedata = card; | |
f1d82698 | 1232 | blk_queue_prep_rq(msb->queue, mspro_block_prepare_req); |
baf8532a AD |
1233 | |
1234 | blk_queue_bounce_limit(msb->queue, limit); | |
086fa5ff | 1235 | blk_queue_max_hw_sectors(msb->queue, MSPRO_BLOCK_MAX_PAGES); |
8a78362c | 1236 | blk_queue_max_segments(msb->queue, MSPRO_BLOCK_MAX_SEGS); |
baf8532a AD |
1237 | blk_queue_max_segment_size(msb->queue, |
1238 | MSPRO_BLOCK_MAX_PAGES * msb->page_size); | |
1239 | ||
1240 | msb->disk->major = major; | |
8e82f8c3 | 1241 | msb->disk->first_minor = disk_id << MSPRO_BLOCK_PART_SHIFT; |
baf8532a AD |
1242 | msb->disk->fops = &ms_block_bdops; |
1243 | msb->usage_count = 1; | |
1244 | msb->disk->private_data = msb; | |
1245 | msb->disk->queue = msb->queue; | |
1246 | msb->disk->driverfs_dev = &card->dev; | |
1247 | ||
1248 | sprintf(msb->disk->disk_name, "mspblk%d", disk_id); | |
1249 | ||
e1defc4f | 1250 | blk_queue_logical_block_size(msb->queue, msb->page_size); |
baf8532a AD |
1251 | |
1252 | capacity = be16_to_cpu(sys_info->user_block_count); | |
1253 | capacity *= be16_to_cpu(sys_info->block_size); | |
1254 | capacity *= msb->page_size >> 9; | |
1255 | set_capacity(msb->disk, capacity); | |
1256 | dev_dbg(&card->dev, "capacity set %ld\n", capacity); | |
baf8532a | 1257 | |
baf8532a | 1258 | add_disk(msb->disk); |
baf8532a AD |
1259 | msb->active = 1; |
1260 | return 0; | |
1261 | ||
1262 | out_put_disk: | |
1263 | put_disk(msb->disk); | |
1264 | out_release_id: | |
1265 | mutex_lock(&mspro_block_disk_lock); | |
1266 | idr_remove(&mspro_block_disk_idr, disk_id); | |
1267 | mutex_unlock(&mspro_block_disk_lock); | |
1268 | return rc; | |
1269 | } | |
1270 | ||
1271 | static void mspro_block_data_clear(struct mspro_block_data *msb) | |
1272 | { | |
1273 | int cnt; | |
1274 | struct mspro_sys_attr *s_attr; | |
1275 | ||
1276 | if (msb->attr_group.attrs) { | |
1277 | for (cnt = 0; msb->attr_group.attrs[cnt]; ++cnt) { | |
1278 | s_attr = mspro_from_sysfs_attr(msb->attr_group | |
1279 | .attrs[cnt]); | |
1280 | kfree(s_attr->data); | |
1281 | kfree(s_attr); | |
1282 | } | |
1283 | kfree(msb->attr_group.attrs); | |
1284 | } | |
1285 | ||
1286 | msb->card = NULL; | |
1287 | } | |
1288 | ||
1289 | static int mspro_block_check_card(struct memstick_dev *card) | |
1290 | { | |
1291 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
1292 | ||
1293 | return (msb->active == 1); | |
1294 | } | |
1295 | ||
1296 | static int mspro_block_probe(struct memstick_dev *card) | |
1297 | { | |
1298 | struct mspro_block_data *msb; | |
1299 | int rc = 0; | |
1300 | ||
1301 | msb = kzalloc(sizeof(struct mspro_block_data), GFP_KERNEL); | |
1302 | if (!msb) | |
1303 | return -ENOMEM; | |
1304 | memstick_set_drvdata(card, msb); | |
1305 | msb->card = card; | |
f1d82698 | 1306 | spin_lock_init(&msb->q_lock); |
baf8532a AD |
1307 | |
1308 | rc = mspro_block_init_card(card); | |
1309 | ||
1310 | if (rc) | |
1311 | goto out_free; | |
1312 | ||
1313 | rc = sysfs_create_group(&card->dev.kobj, &msb->attr_group); | |
1314 | if (rc) | |
1315 | goto out_free; | |
1316 | ||
1317 | rc = mspro_block_init_disk(card); | |
1318 | if (!rc) { | |
1319 | card->check = mspro_block_check_card; | |
17017d8d AD |
1320 | card->stop = mspro_block_stop; |
1321 | card->start = mspro_block_start; | |
baf8532a AD |
1322 | return 0; |
1323 | } | |
1324 | ||
1325 | sysfs_remove_group(&card->dev.kobj, &msb->attr_group); | |
1326 | out_free: | |
1327 | memstick_set_drvdata(card, NULL); | |
1328 | mspro_block_data_clear(msb); | |
1329 | kfree(msb); | |
1330 | return rc; | |
1331 | } | |
1332 | ||
1333 | static void mspro_block_remove(struct memstick_dev *card) | |
1334 | { | |
1335 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
baf8532a AD |
1336 | unsigned long flags; |
1337 | ||
baf8532a | 1338 | spin_lock_irqsave(&msb->q_lock, flags); |
f1d82698 AD |
1339 | msb->eject = 1; |
1340 | blk_start_queue(msb->queue); | |
baf8532a AD |
1341 | spin_unlock_irqrestore(&msb->q_lock, flags); |
1342 | ||
d862b13b ML |
1343 | del_gendisk(msb->disk); |
1344 | dev_dbg(&card->dev, "mspro block remove\n"); | |
1345 | ||
baf8532a | 1346 | blk_cleanup_queue(msb->queue); |
f1d82698 | 1347 | msb->queue = NULL; |
baf8532a AD |
1348 | |
1349 | sysfs_remove_group(&card->dev.kobj, &msb->attr_group); | |
1350 | ||
1351 | mutex_lock(&mspro_block_disk_lock); | |
1352 | mspro_block_data_clear(msb); | |
1353 | mutex_unlock(&mspro_block_disk_lock); | |
1354 | ||
1355 | mspro_block_disk_release(msb->disk); | |
1356 | memstick_set_drvdata(card, NULL); | |
1357 | } | |
1358 | ||
1359 | #ifdef CONFIG_PM | |
1360 | ||
1361 | static int mspro_block_suspend(struct memstick_dev *card, pm_message_t state) | |
1362 | { | |
1363 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
baf8532a AD |
1364 | unsigned long flags; |
1365 | ||
1366 | spin_lock_irqsave(&msb->q_lock, flags); | |
baf8532a | 1367 | blk_stop_queue(msb->queue); |
f1d82698 | 1368 | msb->active = 0; |
baf8532a AD |
1369 | spin_unlock_irqrestore(&msb->q_lock, flags); |
1370 | ||
baf8532a AD |
1371 | return 0; |
1372 | } | |
1373 | ||
1374 | static int mspro_block_resume(struct memstick_dev *card) | |
1375 | { | |
1376 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
1377 | unsigned long flags; | |
1378 | int rc = 0; | |
1379 | ||
1380 | #ifdef CONFIG_MEMSTICK_UNSAFE_RESUME | |
1381 | ||
1382 | struct mspro_block_data *new_msb; | |
1383 | struct memstick_host *host = card->host; | |
1384 | struct mspro_sys_attr *s_attr, *r_attr; | |
1385 | unsigned char cnt; | |
1386 | ||
1387 | mutex_lock(&host->lock); | |
1388 | new_msb = kzalloc(sizeof(struct mspro_block_data), GFP_KERNEL); | |
1389 | if (!new_msb) { | |
1390 | rc = -ENOMEM; | |
1391 | goto out_unlock; | |
1392 | } | |
1393 | ||
1394 | new_msb->card = card; | |
1395 | memstick_set_drvdata(card, new_msb); | |
1396 | if (mspro_block_init_card(card)) | |
1397 | goto out_free; | |
1398 | ||
1399 | for (cnt = 0; new_msb->attr_group.attrs[cnt] | |
1400 | && msb->attr_group.attrs[cnt]; ++cnt) { | |
1401 | s_attr = mspro_from_sysfs_attr(new_msb->attr_group.attrs[cnt]); | |
1402 | r_attr = mspro_from_sysfs_attr(msb->attr_group.attrs[cnt]); | |
1403 | ||
1404 | if (s_attr->id == MSPRO_BLOCK_ID_SYSINFO | |
1405 | && r_attr->id == s_attr->id) { | |
1406 | if (memcmp(s_attr->data, r_attr->data, s_attr->size)) | |
1407 | break; | |
1408 | ||
f1d82698 | 1409 | msb->active = 1; |
baf8532a AD |
1410 | break; |
1411 | } | |
1412 | } | |
1413 | ||
1414 | out_free: | |
1415 | memstick_set_drvdata(card, msb); | |
1416 | mspro_block_data_clear(new_msb); | |
1417 | kfree(new_msb); | |
1418 | out_unlock: | |
1419 | mutex_unlock(&host->lock); | |
1420 | ||
1421 | #endif /* CONFIG_MEMSTICK_UNSAFE_RESUME */ | |
1422 | ||
1423 | spin_lock_irqsave(&msb->q_lock, flags); | |
1424 | blk_start_queue(msb->queue); | |
1425 | spin_unlock_irqrestore(&msb->q_lock, flags); | |
1426 | return rc; | |
1427 | } | |
1428 | ||
1429 | #else | |
1430 | ||
1431 | #define mspro_block_suspend NULL | |
1432 | #define mspro_block_resume NULL | |
1433 | ||
1434 | #endif /* CONFIG_PM */ | |
1435 | ||
1436 | static struct memstick_device_id mspro_block_id_tbl[] = { | |
1437 | {MEMSTICK_MATCH_ALL, MEMSTICK_TYPE_PRO, MEMSTICK_CATEGORY_STORAGE_DUO, | |
8e82f8c3 | 1438 | MEMSTICK_CLASS_DUO}, |
baf8532a AD |
1439 | {} |
1440 | }; | |
1441 | ||
1442 | ||
1443 | static struct memstick_driver mspro_block_driver = { | |
1444 | .driver = { | |
1445 | .name = DRIVER_NAME, | |
1446 | .owner = THIS_MODULE | |
1447 | }, | |
1448 | .id_table = mspro_block_id_tbl, | |
1449 | .probe = mspro_block_probe, | |
1450 | .remove = mspro_block_remove, | |
1451 | .suspend = mspro_block_suspend, | |
1452 | .resume = mspro_block_resume | |
1453 | }; | |
1454 | ||
1455 | static int __init mspro_block_init(void) | |
1456 | { | |
1457 | int rc = -ENOMEM; | |
1458 | ||
1459 | rc = register_blkdev(major, DRIVER_NAME); | |
1460 | if (rc < 0) { | |
1461 | printk(KERN_ERR DRIVER_NAME ": failed to register " | |
1462 | "major %d, error %d\n", major, rc); | |
1463 | return rc; | |
1464 | } | |
1465 | if (!major) | |
1466 | major = rc; | |
1467 | ||
1468 | rc = memstick_register_driver(&mspro_block_driver); | |
1469 | if (rc) | |
1470 | unregister_blkdev(major, DRIVER_NAME); | |
1471 | return rc; | |
1472 | } | |
1473 | ||
1474 | static void __exit mspro_block_exit(void) | |
1475 | { | |
1476 | memstick_unregister_driver(&mspro_block_driver); | |
1477 | unregister_blkdev(major, DRIVER_NAME); | |
1478 | idr_destroy(&mspro_block_disk_idr); | |
1479 | } | |
1480 | ||
1481 | module_init(mspro_block_init); | |
1482 | module_exit(mspro_block_exit); | |
1483 | ||
1484 | MODULE_LICENSE("GPL"); | |
1485 | MODULE_AUTHOR("Alex Dubov"); | |
1486 | MODULE_DESCRIPTION("Sony MemoryStickPro block device driver"); | |
1487 | MODULE_DEVICE_TABLE(memstick, mspro_block_id_tbl); |