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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 { | |
69347a23 HH |
55 | __be32 address; |
56 | __be32 size; | |
baf8532a AD |
57 | unsigned char id; |
58 | unsigned char reserved[3]; | |
59 | } __attribute__((packed)); | |
60 | ||
61 | struct mspro_attribute { | |
69347a23 | 62 | __be16 signature; |
baf8532a AD |
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; | |
69347a23 HH |
72 | __be16 block_size; |
73 | __be16 block_count; | |
74 | __be16 user_block_count; | |
75 | __be16 page_size; | |
baf8532a AD |
76 | unsigned char reserved1[2]; |
77 | unsigned char assembly_date[8]; | |
69347a23 | 78 | __be32 serial_number; |
baf8532a AD |
79 | unsigned char assembly_maker_code; |
80 | unsigned char assembly_model_code[3]; | |
69347a23 HH |
81 | __be16 memory_maker_code; |
82 | __be16 memory_model_code; | |
baf8532a AD |
83 | unsigned char reserved2[4]; |
84 | unsigned char vcc; | |
85 | unsigned char vpp; | |
69347a23 HH |
86 | __be16 controller_number; |
87 | __be16 controller_function; | |
88 | __be16 start_sector; | |
89 | __be16 unit_size; | |
baf8532a AD |
90 | unsigned char ms_sub_class; |
91 | unsigned char reserved3[4]; | |
92 | unsigned char interface_type; | |
69347a23 | 93 | __be16 controller_code; |
baf8532a AD |
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 | 126 | struct mspro_devinfo { |
69347a23 HH |
127 | __be16 cylinders; |
128 | __be16 heads; | |
129 | __be16 bytes_per_track; | |
130 | __be16 bytes_per_sector; | |
131 | __be16 sectors_per_track; | |
baf8532a AD |
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, | |
69347a23 | 341 | be16_to_cpup((__be16 *)&x_sys->assembly_date[1]), |
baf8532a AD |
342 | x_sys->assembly_date[3], x_sys->assembly_date[4], |
343 | x_sys->assembly_date[5], x_sys->assembly_date[6], | |
344 | x_sys->assembly_date[7]); | |
345 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "serial number: %x\n", | |
346 | be32_to_cpu(x_sys->serial_number)); | |
347 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, | |
348 | "assembly maker code: %x\n", | |
349 | x_sys->assembly_maker_code); | |
350 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "assembly model code: " | |
351 | "%02x%02x%02x\n", x_sys->assembly_model_code[0], | |
352 | x_sys->assembly_model_code[1], | |
353 | x_sys->assembly_model_code[2]); | |
354 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "memory maker code: %x\n", | |
355 | be16_to_cpu(x_sys->memory_maker_code)); | |
356 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "memory model code: %x\n", | |
357 | be16_to_cpu(x_sys->memory_model_code)); | |
358 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "vcc: %x\n", | |
359 | x_sys->vcc); | |
360 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "vpp: %x\n", | |
361 | x_sys->vpp); | |
362 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "controller number: %x\n", | |
363 | be16_to_cpu(x_sys->controller_number)); | |
364 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, | |
365 | "controller function: %x\n", | |
366 | be16_to_cpu(x_sys->controller_function)); | |
367 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sector: %x\n", | |
368 | be16_to_cpu(x_sys->start_sector)); | |
369 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "unit size: %x\n", | |
370 | be16_to_cpu(x_sys->unit_size)); | |
371 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "sub class: %x\n", | |
372 | x_sys->ms_sub_class); | |
373 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "interface type: %x\n", | |
374 | x_sys->interface_type); | |
375 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "controller code: %x\n", | |
376 | be16_to_cpu(x_sys->controller_code)); | |
377 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "format type: %x\n", | |
378 | x_sys->format_type); | |
379 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "device type: %x\n", | |
380 | x_sys->device_type); | |
381 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "mspro id: %s\n", | |
382 | x_sys->mspro_id); | |
383 | return rc; | |
384 | } | |
385 | ||
386 | static ssize_t mspro_block_attr_show_modelname(struct device *dev, | |
387 | struct device_attribute *attr, | |
388 | char *buffer) | |
389 | { | |
390 | struct mspro_sys_attr *s_attr = container_of(attr, | |
391 | struct mspro_sys_attr, | |
392 | dev_attr); | |
393 | ||
394 | return scnprintf(buffer, PAGE_SIZE, "%s", (char *)s_attr->data); | |
395 | } | |
396 | ||
397 | static ssize_t mspro_block_attr_show_mbr(struct device *dev, | |
398 | struct device_attribute *attr, | |
399 | char *buffer) | |
400 | { | |
401 | struct mspro_sys_attr *x_attr = container_of(attr, | |
402 | struct mspro_sys_attr, | |
403 | dev_attr); | |
404 | struct mspro_mbr *x_mbr = x_attr->data; | |
405 | ssize_t rc = 0; | |
406 | ||
407 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "boot partition: %x\n", | |
408 | x_mbr->boot_partition); | |
409 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start head: %x\n", | |
410 | x_mbr->start_head); | |
411 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sector: %x\n", | |
412 | x_mbr->start_sector); | |
413 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start cylinder: %x\n", | |
414 | x_mbr->start_cylinder); | |
415 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "partition type: %x\n", | |
416 | x_mbr->partition_type); | |
417 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end head: %x\n", | |
418 | x_mbr->end_head); | |
419 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end sector: %x\n", | |
420 | x_mbr->end_sector); | |
421 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end cylinder: %x\n", | |
422 | x_mbr->end_cylinder); | |
423 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sectors: %x\n", | |
424 | x_mbr->start_sectors); | |
425 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, | |
426 | "sectors per partition: %x\n", | |
427 | x_mbr->sectors_per_partition); | |
428 | return rc; | |
429 | } | |
430 | ||
efb2742e AD |
431 | static ssize_t mspro_block_attr_show_specfile(struct device *dev, |
432 | struct device_attribute *attr, | |
433 | char *buffer) | |
434 | { | |
435 | struct mspro_sys_attr *x_attr = container_of(attr, | |
436 | struct mspro_sys_attr, | |
437 | dev_attr); | |
438 | struct mspro_specfile *x_spfile = x_attr->data; | |
439 | char name[9], ext[4]; | |
440 | ssize_t rc = 0; | |
441 | ||
442 | memcpy(name, x_spfile->name, 8); | |
443 | name[8] = 0; | |
444 | memcpy(ext, x_spfile->ext, 3); | |
445 | ext[3] = 0; | |
446 | ||
447 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "name: %s\n", name); | |
448 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "ext: %s\n", ext); | |
449 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "attribute: %x\n", | |
450 | x_spfile->attr); | |
451 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "time: %d:%d:%d\n", | |
452 | x_spfile->time >> 11, | |
453 | (x_spfile->time >> 5) & 0x3f, | |
454 | (x_spfile->time & 0x1f) * 2); | |
455 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "date: %d-%d-%d\n", | |
456 | (x_spfile->date >> 9) + 1980, | |
457 | (x_spfile->date >> 5) & 0xf, | |
458 | x_spfile->date & 0x1f); | |
459 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start cluster: %x\n", | |
460 | x_spfile->cluster); | |
461 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "size: %x\n", | |
462 | x_spfile->size); | |
463 | return rc; | |
464 | } | |
465 | ||
baf8532a AD |
466 | static ssize_t mspro_block_attr_show_devinfo(struct device *dev, |
467 | struct device_attribute *attr, | |
468 | char *buffer) | |
469 | { | |
470 | struct mspro_sys_attr *x_attr = container_of(attr, | |
471 | struct mspro_sys_attr, | |
472 | dev_attr); | |
473 | struct mspro_devinfo *x_devinfo = x_attr->data; | |
474 | ssize_t rc = 0; | |
475 | ||
476 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "cylinders: %x\n", | |
477 | be16_to_cpu(x_devinfo->cylinders)); | |
478 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "heads: %x\n", | |
479 | be16_to_cpu(x_devinfo->heads)); | |
480 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "bytes per track: %x\n", | |
481 | be16_to_cpu(x_devinfo->bytes_per_track)); | |
482 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "bytes per sector: %x\n", | |
483 | be16_to_cpu(x_devinfo->bytes_per_sector)); | |
484 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "sectors per track: %x\n", | |
485 | be16_to_cpu(x_devinfo->sectors_per_track)); | |
486 | return rc; | |
487 | } | |
488 | ||
489 | static sysfs_show_t mspro_block_attr_show(unsigned char tag) | |
490 | { | |
491 | switch (tag) { | |
492 | case MSPRO_BLOCK_ID_SYSINFO: | |
493 | return mspro_block_attr_show_sysinfo; | |
494 | case MSPRO_BLOCK_ID_MODELNAME: | |
495 | return mspro_block_attr_show_modelname; | |
496 | case MSPRO_BLOCK_ID_MBR: | |
497 | return mspro_block_attr_show_mbr; | |
efb2742e AD |
498 | case MSPRO_BLOCK_ID_SPECFILEVALUES1: |
499 | case MSPRO_BLOCK_ID_SPECFILEVALUES2: | |
500 | return mspro_block_attr_show_specfile; | |
baf8532a AD |
501 | case MSPRO_BLOCK_ID_DEVINFO: |
502 | return mspro_block_attr_show_devinfo; | |
503 | default: | |
504 | return mspro_block_attr_show_default; | |
505 | } | |
506 | } | |
507 | ||
508 | /*** Protocol handlers ***/ | |
509 | ||
510 | /* | |
511 | * Functions prefixed with "h_" are protocol callbacks. They can be called from | |
512 | * interrupt context. Return value of 0 means that request processing is still | |
513 | * ongoing, while special error value of -EAGAIN means that current request is | |
514 | * finished (and request processor should come back some time later). | |
515 | */ | |
516 | ||
517 | static int h_mspro_block_req_init(struct memstick_dev *card, | |
518 | struct memstick_request **mrq) | |
519 | { | |
520 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
521 | ||
522 | *mrq = &card->current_mrq; | |
523 | card->next_request = msb->mrq_handler; | |
524 | return 0; | |
525 | } | |
526 | ||
527 | static int h_mspro_block_default(struct memstick_dev *card, | |
528 | struct memstick_request **mrq) | |
529 | { | |
f1d82698 AD |
530 | return mspro_block_complete_req(card, (*mrq)->error); |
531 | } | |
532 | ||
533 | static int h_mspro_block_default_bad(struct memstick_dev *card, | |
534 | struct memstick_request **mrq) | |
535 | { | |
536 | return -ENXIO; | |
baf8532a AD |
537 | } |
538 | ||
539 | static int h_mspro_block_get_ro(struct memstick_dev *card, | |
540 | struct memstick_request **mrq) | |
541 | { | |
542 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
543 | ||
f1d82698 AD |
544 | if (!(*mrq)->error) { |
545 | if ((*mrq)->data[offsetof(struct ms_status_register, status0)] | |
546 | & MEMSTICK_STATUS0_WP) | |
547 | msb->read_only = 1; | |
548 | else | |
549 | msb->read_only = 0; | |
baf8532a AD |
550 | } |
551 | ||
f1d82698 | 552 | return mspro_block_complete_req(card, (*mrq)->error); |
baf8532a AD |
553 | } |
554 | ||
555 | static int h_mspro_block_wait_for_ced(struct memstick_dev *card, | |
556 | struct memstick_request **mrq) | |
557 | { | |
baf8532a AD |
558 | dev_dbg(&card->dev, "wait for ced: value %x\n", (*mrq)->data[0]); |
559 | ||
f1d82698 AD |
560 | if (!(*mrq)->error) { |
561 | if ((*mrq)->data[0] & (MEMSTICK_INT_CMDNAK | MEMSTICK_INT_ERR)) | |
562 | (*mrq)->error = -EFAULT; | |
563 | else if (!((*mrq)->data[0] & MEMSTICK_INT_CED)) | |
564 | return 0; | |
baf8532a AD |
565 | } |
566 | ||
f1d82698 | 567 | return mspro_block_complete_req(card, (*mrq)->error); |
baf8532a AD |
568 | } |
569 | ||
570 | static int h_mspro_block_transfer_data(struct memstick_dev *card, | |
571 | struct memstick_request **mrq) | |
572 | { | |
baf8532a AD |
573 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
574 | unsigned char t_val = 0; | |
575 | struct scatterlist t_sg = { 0 }; | |
576 | size_t t_offset; | |
577 | ||
f1d82698 AD |
578 | if ((*mrq)->error) |
579 | return mspro_block_complete_req(card, (*mrq)->error); | |
baf8532a AD |
580 | |
581 | switch ((*mrq)->tpc) { | |
582 | case MS_TPC_WRITE_REG: | |
583 | memstick_init_req(*mrq, MS_TPC_SET_CMD, &msb->transfer_cmd, 1); | |
ead70773 | 584 | (*mrq)->need_card_int = 1; |
baf8532a AD |
585 | return 0; |
586 | case MS_TPC_SET_CMD: | |
587 | t_val = (*mrq)->int_reg; | |
588 | memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1); | |
ead70773 | 589 | if (msb->caps & MEMSTICK_CAP_AUTO_GET_INT) |
baf8532a AD |
590 | goto has_int_reg; |
591 | return 0; | |
592 | case MS_TPC_GET_INT: | |
593 | t_val = (*mrq)->data[0]; | |
594 | has_int_reg: | |
595 | if (t_val & (MEMSTICK_INT_CMDNAK | MEMSTICK_INT_ERR)) { | |
596 | t_val = MSPRO_CMD_STOP; | |
597 | memstick_init_req(*mrq, MS_TPC_SET_CMD, &t_val, 1); | |
598 | card->next_request = h_mspro_block_default; | |
599 | return 0; | |
600 | } | |
601 | ||
602 | if (msb->current_page | |
603 | == (msb->req_sg[msb->current_seg].length | |
604 | / msb->page_size)) { | |
605 | msb->current_page = 0; | |
606 | msb->current_seg++; | |
607 | ||
608 | if (msb->current_seg == msb->seg_count) { | |
609 | if (t_val & MEMSTICK_INT_CED) { | |
f1d82698 AD |
610 | return mspro_block_complete_req(card, |
611 | 0); | |
baf8532a AD |
612 | } else { |
613 | card->next_request | |
614 | = h_mspro_block_wait_for_ced; | |
615 | memstick_init_req(*mrq, MS_TPC_GET_INT, | |
616 | NULL, 1); | |
617 | return 0; | |
618 | } | |
619 | } | |
620 | } | |
621 | ||
622 | if (!(t_val & MEMSTICK_INT_BREQ)) { | |
623 | memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1); | |
624 | return 0; | |
625 | } | |
626 | ||
627 | t_offset = msb->req_sg[msb->current_seg].offset; | |
628 | t_offset += msb->current_page * msb->page_size; | |
629 | ||
630 | sg_set_page(&t_sg, | |
631 | nth_page(sg_page(&(msb->req_sg[msb->current_seg])), | |
632 | t_offset >> PAGE_SHIFT), | |
633 | msb->page_size, offset_in_page(t_offset)); | |
634 | ||
635 | memstick_init_req_sg(*mrq, msb->data_dir == READ | |
636 | ? MS_TPC_READ_LONG_DATA | |
637 | : MS_TPC_WRITE_LONG_DATA, | |
638 | &t_sg); | |
ead70773 | 639 | (*mrq)->need_card_int = 1; |
baf8532a AD |
640 | return 0; |
641 | case MS_TPC_READ_LONG_DATA: | |
642 | case MS_TPC_WRITE_LONG_DATA: | |
643 | msb->current_page++; | |
ead70773 | 644 | if (msb->caps & MEMSTICK_CAP_AUTO_GET_INT) { |
baf8532a AD |
645 | t_val = (*mrq)->int_reg; |
646 | goto has_int_reg; | |
647 | } else { | |
648 | memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1); | |
649 | return 0; | |
650 | } | |
651 | ||
652 | default: | |
653 | BUG(); | |
654 | } | |
655 | } | |
656 | ||
657 | /*** Data transfer ***/ | |
658 | ||
f1d82698 | 659 | static int mspro_block_issue_req(struct memstick_dev *card, int chunk) |
baf8532a AD |
660 | { |
661 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
baf8532a | 662 | sector_t t_sec; |
f1d82698 AD |
663 | unsigned int count; |
664 | struct mspro_param_register param; | |
baf8532a | 665 | |
f1d82698 AD |
666 | try_again: |
667 | while (chunk) { | |
668 | msb->current_page = 0; | |
baf8532a | 669 | msb->current_seg = 0; |
f1d82698 AD |
670 | msb->seg_count = blk_rq_map_sg(msb->block_req->q, |
671 | msb->block_req, | |
672 | msb->req_sg); | |
baf8532a | 673 | |
f1d82698 | 674 | if (!msb->seg_count) { |
296b2f6a | 675 | chunk = __blk_end_request_cur(msb->block_req, -ENOMEM); |
f1d82698 AD |
676 | continue; |
677 | } | |
baf8532a | 678 | |
83096ebf | 679 | t_sec = blk_rq_pos(msb->block_req) << 9; |
f1d82698 | 680 | sector_div(t_sec, msb->page_size); |
baf8532a | 681 | |
1011c1b9 | 682 | count = blk_rq_bytes(msb->block_req); |
f1d82698 | 683 | count /= msb->page_size; |
baf8532a | 684 | |
f1d82698 AD |
685 | param.system = msb->system; |
686 | param.data_count = cpu_to_be16(count); | |
687 | param.data_address = cpu_to_be32((uint32_t)t_sec); | |
688 | param.tpc_param = 0; | |
689 | ||
690 | msb->data_dir = rq_data_dir(msb->block_req); | |
691 | msb->transfer_cmd = msb->data_dir == READ | |
692 | ? MSPRO_CMD_READ_DATA | |
693 | : MSPRO_CMD_WRITE_DATA; | |
694 | ||
695 | dev_dbg(&card->dev, "data transfer: cmd %x, " | |
696 | "lba %x, count %x\n", msb->transfer_cmd, | |
697 | be32_to_cpu(param.data_address), count); | |
698 | ||
699 | card->next_request = h_mspro_block_req_init; | |
700 | msb->mrq_handler = h_mspro_block_transfer_data; | |
701 | memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, | |
702 | ¶m, sizeof(param)); | |
703 | memstick_new_req(card->host); | |
704 | return 0; | |
705 | } | |
706 | ||
9934c8c0 TH |
707 | dev_dbg(&card->dev, "blk_fetch\n"); |
708 | msb->block_req = blk_fetch_request(msb->queue); | |
f1d82698 AD |
709 | if (!msb->block_req) { |
710 | dev_dbg(&card->dev, "issue end\n"); | |
711 | return -EAGAIN; | |
712 | } | |
713 | ||
714 | dev_dbg(&card->dev, "trying again\n"); | |
715 | chunk = 1; | |
716 | goto try_again; | |
baf8532a AD |
717 | } |
718 | ||
f1d82698 | 719 | static int mspro_block_complete_req(struct memstick_dev *card, int error) |
baf8532a | 720 | { |
f1d82698 AD |
721 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
722 | int chunk, cnt; | |
723 | unsigned int t_len = 0; | |
baf8532a AD |
724 | unsigned long flags; |
725 | ||
726 | spin_lock_irqsave(&msb->q_lock, flags); | |
f1d82698 AD |
727 | dev_dbg(&card->dev, "complete %d, %d\n", msb->has_request ? 1 : 0, |
728 | error); | |
729 | ||
730 | if (msb->has_request) { | |
731 | /* Nothing to do - not really an error */ | |
732 | if (error == -EAGAIN) | |
733 | error = 0; | |
734 | ||
735 | if (error || (card->current_mrq.tpc == MSPRO_CMD_STOP)) { | |
736 | if (msb->data_dir == READ) { | |
737 | for (cnt = 0; cnt < msb->current_seg; cnt++) | |
738 | t_len += msb->req_sg[cnt].length | |
739 | / msb->page_size; | |
740 | ||
741 | if (msb->current_page) | |
742 | t_len += msb->current_page - 1; | |
743 | ||
744 | t_len *= msb->page_size; | |
745 | } | |
746 | } else | |
1011c1b9 | 747 | t_len = blk_rq_bytes(msb->block_req); |
f1d82698 AD |
748 | |
749 | dev_dbg(&card->dev, "transferred %x (%d)\n", t_len, error); | |
750 | ||
751 | if (error && !t_len) | |
752 | t_len = blk_rq_cur_bytes(msb->block_req); | |
753 | ||
754 | chunk = __blk_end_request(msb->block_req, error, t_len); | |
755 | ||
756 | error = mspro_block_issue_req(card, chunk); | |
757 | ||
758 | if (!error) | |
759 | goto out; | |
760 | else | |
761 | msb->has_request = 0; | |
762 | } else { | |
763 | if (!error) | |
764 | error = -EAGAIN; | |
765 | } | |
766 | ||
767 | card->next_request = h_mspro_block_default_bad; | |
768 | complete_all(&card->mrq_complete); | |
769 | out: | |
baf8532a | 770 | spin_unlock_irqrestore(&msb->q_lock, flags); |
f1d82698 | 771 | return error; |
baf8532a AD |
772 | } |
773 | ||
17017d8d AD |
774 | static void mspro_block_stop(struct memstick_dev *card) |
775 | { | |
776 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
777 | int rc = 0; | |
778 | unsigned long flags; | |
779 | ||
780 | while (1) { | |
781 | spin_lock_irqsave(&msb->q_lock, flags); | |
782 | if (!msb->has_request) { | |
783 | blk_stop_queue(msb->queue); | |
784 | rc = 1; | |
785 | } | |
786 | spin_unlock_irqrestore(&msb->q_lock, flags); | |
787 | ||
788 | if (rc) | |
789 | break; | |
790 | ||
791 | wait_for_completion(&card->mrq_complete); | |
792 | } | |
793 | } | |
794 | ||
795 | static void mspro_block_start(struct memstick_dev *card) | |
796 | { | |
797 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
798 | unsigned long flags; | |
799 | ||
800 | spin_lock_irqsave(&msb->q_lock, flags); | |
801 | blk_start_queue(msb->queue); | |
802 | spin_unlock_irqrestore(&msb->q_lock, flags); | |
803 | } | |
804 | ||
f1d82698 | 805 | static int mspro_block_prepare_req(struct request_queue *q, struct request *req) |
baf8532a | 806 | { |
f1d82698 AD |
807 | if (!blk_fs_request(req) && !blk_pc_request(req)) { |
808 | blk_dump_rq_flags(req, "MSPro unsupported request"); | |
809 | return BLKPREP_KILL; | |
810 | } | |
baf8532a | 811 | |
f1d82698 | 812 | req->cmd_flags |= REQ_DONTPREP; |
baf8532a | 813 | |
f1d82698 | 814 | return BLKPREP_OK; |
baf8532a AD |
815 | } |
816 | ||
f1d82698 | 817 | static void mspro_block_submit_req(struct request_queue *q) |
baf8532a AD |
818 | { |
819 | struct memstick_dev *card = q->queuedata; | |
820 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
821 | struct request *req = NULL; | |
822 | ||
f1d82698 AD |
823 | if (msb->has_request) |
824 | return; | |
825 | ||
826 | if (msb->eject) { | |
9934c8c0 | 827 | while ((req = blk_fetch_request(q)) != NULL) |
40cbbb78 | 828 | __blk_end_request_all(req, -ENODEV); |
f1d82698 AD |
829 | |
830 | return; | |
baf8532a | 831 | } |
f1d82698 AD |
832 | |
833 | msb->has_request = 1; | |
834 | if (mspro_block_issue_req(card, 0)) | |
835 | msb->has_request = 0; | |
baf8532a AD |
836 | } |
837 | ||
838 | /*** Initialization ***/ | |
839 | ||
840 | static int mspro_block_wait_for_ced(struct memstick_dev *card) | |
841 | { | |
842 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
843 | ||
844 | card->next_request = h_mspro_block_req_init; | |
845 | msb->mrq_handler = h_mspro_block_wait_for_ced; | |
846 | memstick_init_req(&card->current_mrq, MS_TPC_GET_INT, NULL, 1); | |
847 | memstick_new_req(card->host); | |
848 | wait_for_completion(&card->mrq_complete); | |
849 | return card->current_mrq.error; | |
850 | } | |
851 | ||
962ee1b1 AD |
852 | static int mspro_block_set_interface(struct memstick_dev *card, |
853 | unsigned char sys_reg) | |
baf8532a AD |
854 | { |
855 | struct memstick_host *host = card->host; | |
856 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
857 | struct mspro_param_register param = { | |
962ee1b1 | 858 | .system = sys_reg, |
baf8532a AD |
859 | .data_count = 0, |
860 | .data_address = 0, | |
e1f19995 | 861 | .tpc_param = 0 |
baf8532a AD |
862 | }; |
863 | ||
864 | card->next_request = h_mspro_block_req_init; | |
865 | msb->mrq_handler = h_mspro_block_default; | |
866 | memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, ¶m, | |
867 | sizeof(param)); | |
868 | memstick_new_req(host); | |
869 | wait_for_completion(&card->mrq_complete); | |
962ee1b1 AD |
870 | return card->current_mrq.error; |
871 | } | |
872 | ||
873 | static int mspro_block_switch_interface(struct memstick_dev *card) | |
874 | { | |
875 | struct memstick_host *host = card->host; | |
876 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
877 | int rc = 0; | |
878 | ||
8e82f8c3 | 879 | try_again: |
962ee1b1 AD |
880 | if (msb->caps & MEMSTICK_CAP_PAR4) |
881 | rc = mspro_block_set_interface(card, MEMSTICK_SYS_PAR4); | |
882 | else | |
883 | return 0; | |
884 | ||
885 | if (rc) { | |
886 | printk(KERN_WARNING | |
887 | "%s: could not switch to 4-bit mode, error %d\n", | |
0252c3b4 | 888 | dev_name(&card->dev), rc); |
962ee1b1 AD |
889 | return 0; |
890 | } | |
baf8532a | 891 | |
e1f19995 AD |
892 | msb->system = MEMSTICK_SYS_PAR4; |
893 | host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_PAR4); | |
962ee1b1 | 894 | printk(KERN_INFO "%s: switching to 4-bit parallel mode\n", |
0252c3b4 | 895 | dev_name(&card->dev)); |
962ee1b1 AD |
896 | |
897 | if (msb->caps & MEMSTICK_CAP_PAR8) { | |
898 | rc = mspro_block_set_interface(card, MEMSTICK_SYS_PAR8); | |
899 | ||
900 | if (!rc) { | |
901 | msb->system = MEMSTICK_SYS_PAR8; | |
902 | host->set_param(host, MEMSTICK_INTERFACE, | |
903 | MEMSTICK_PAR8); | |
904 | printk(KERN_INFO | |
905 | "%s: switching to 8-bit parallel mode\n", | |
0252c3b4 | 906 | dev_name(&card->dev)); |
962ee1b1 AD |
907 | } else |
908 | printk(KERN_WARNING | |
909 | "%s: could not switch to 8-bit mode, error %d\n", | |
0252c3b4 | 910 | dev_name(&card->dev), rc); |
962ee1b1 | 911 | } |
baf8532a AD |
912 | |
913 | card->next_request = h_mspro_block_req_init; | |
914 | msb->mrq_handler = h_mspro_block_default; | |
915 | memstick_init_req(&card->current_mrq, MS_TPC_GET_INT, NULL, 1); | |
916 | memstick_new_req(card->host); | |
917 | wait_for_completion(&card->mrq_complete); | |
962ee1b1 | 918 | rc = card->current_mrq.error; |
baf8532a | 919 | |
962ee1b1 AD |
920 | if (rc) { |
921 | printk(KERN_WARNING | |
922 | "%s: interface error, trying to fall back to serial\n", | |
0252c3b4 | 923 | dev_name(&card->dev)); |
59367258 AD |
924 | msb->system = MEMSTICK_SYS_SERIAL; |
925 | host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_OFF); | |
962ee1b1 | 926 | msleep(10); |
59367258 | 927 | host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_ON); |
baf8532a | 928 | host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_SERIAL); |
59367258 | 929 | |
962ee1b1 AD |
930 | rc = memstick_set_rw_addr(card); |
931 | if (!rc) | |
932 | rc = mspro_block_set_interface(card, msb->system); | |
8e82f8c3 AD |
933 | |
934 | if (!rc) { | |
935 | msleep(150); | |
936 | rc = mspro_block_wait_for_ced(card); | |
937 | if (rc) | |
938 | return rc; | |
939 | ||
940 | if (msb->caps & MEMSTICK_CAP_PAR8) { | |
941 | msb->caps &= ~MEMSTICK_CAP_PAR8; | |
942 | goto try_again; | |
943 | } | |
944 | } | |
baf8532a | 945 | } |
962ee1b1 | 946 | return rc; |
baf8532a AD |
947 | } |
948 | ||
949 | /* Memory allocated for attributes by this function should be freed by | |
950 | * mspro_block_data_clear, no matter if the initialization process succeded | |
951 | * or failed. | |
952 | */ | |
953 | static int mspro_block_read_attributes(struct memstick_dev *card) | |
954 | { | |
955 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
956 | struct mspro_param_register param = { | |
957 | .system = msb->system, | |
958 | .data_count = cpu_to_be16(1), | |
959 | .data_address = 0, | |
e1f19995 | 960 | .tpc_param = 0 |
baf8532a AD |
961 | }; |
962 | struct mspro_attribute *attr = NULL; | |
963 | struct mspro_sys_attr *s_attr = NULL; | |
964 | unsigned char *buffer = NULL; | |
965 | int cnt, rc, attr_count; | |
966 | unsigned int addr; | |
967 | unsigned short page_count; | |
968 | ||
969 | attr = kmalloc(msb->page_size, GFP_KERNEL); | |
970 | if (!attr) | |
971 | return -ENOMEM; | |
972 | ||
973 | sg_init_one(&msb->req_sg[0], attr, msb->page_size); | |
974 | msb->seg_count = 1; | |
975 | msb->current_seg = 0; | |
976 | msb->current_page = 0; | |
977 | msb->data_dir = READ; | |
978 | msb->transfer_cmd = MSPRO_CMD_READ_ATRB; | |
979 | ||
980 | card->next_request = h_mspro_block_req_init; | |
981 | msb->mrq_handler = h_mspro_block_transfer_data; | |
982 | memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, ¶m, | |
983 | sizeof(param)); | |
984 | memstick_new_req(card->host); | |
985 | wait_for_completion(&card->mrq_complete); | |
986 | if (card->current_mrq.error) { | |
987 | rc = card->current_mrq.error; | |
988 | goto out_free_attr; | |
989 | } | |
990 | ||
991 | if (be16_to_cpu(attr->signature) != MSPRO_BLOCK_SIGNATURE) { | |
992 | printk(KERN_ERR "%s: unrecognized device signature %x\n", | |
0252c3b4 | 993 | dev_name(&card->dev), be16_to_cpu(attr->signature)); |
baf8532a AD |
994 | rc = -ENODEV; |
995 | goto out_free_attr; | |
996 | } | |
997 | ||
998 | if (attr->count > MSPRO_BLOCK_MAX_ATTRIBUTES) { | |
999 | printk(KERN_WARNING "%s: way too many attribute entries\n", | |
0252c3b4 | 1000 | dev_name(&card->dev)); |
baf8532a AD |
1001 | attr_count = MSPRO_BLOCK_MAX_ATTRIBUTES; |
1002 | } else | |
1003 | attr_count = attr->count; | |
1004 | ||
1005 | msb->attr_group.attrs = kzalloc((attr_count + 1) | |
1006 | * sizeof(struct attribute), | |
1007 | GFP_KERNEL); | |
1008 | if (!msb->attr_group.attrs) { | |
1009 | rc = -ENOMEM; | |
1010 | goto out_free_attr; | |
1011 | } | |
1012 | msb->attr_group.name = "media_attributes"; | |
1013 | ||
1014 | buffer = kmalloc(msb->page_size, GFP_KERNEL); | |
1015 | if (!buffer) { | |
1016 | rc = -ENOMEM; | |
1017 | goto out_free_attr; | |
1018 | } | |
1019 | memcpy(buffer, (char *)attr, msb->page_size); | |
1020 | page_count = 1; | |
1021 | ||
1022 | for (cnt = 0; cnt < attr_count; ++cnt) { | |
1023 | s_attr = kzalloc(sizeof(struct mspro_sys_attr), GFP_KERNEL); | |
1024 | if (!s_attr) { | |
1025 | rc = -ENOMEM; | |
1026 | goto out_free_buffer; | |
1027 | } | |
1028 | ||
1029 | msb->attr_group.attrs[cnt] = &s_attr->dev_attr.attr; | |
1030 | addr = be32_to_cpu(attr->entries[cnt].address); | |
1031 | rc = be32_to_cpu(attr->entries[cnt].size); | |
1032 | dev_dbg(&card->dev, "adding attribute %d: id %x, address %x, " | |
1033 | "size %x\n", cnt, attr->entries[cnt].id, addr, rc); | |
1034 | s_attr->id = attr->entries[cnt].id; | |
1035 | if (mspro_block_attr_name(s_attr->id)) | |
1036 | snprintf(s_attr->name, sizeof(s_attr->name), "%s", | |
1037 | mspro_block_attr_name(attr->entries[cnt].id)); | |
1038 | else | |
1039 | snprintf(s_attr->name, sizeof(s_attr->name), | |
1040 | "attr_x%02x", attr->entries[cnt].id); | |
1041 | ||
1042 | s_attr->dev_attr.attr.name = s_attr->name; | |
1043 | s_attr->dev_attr.attr.mode = S_IRUGO; | |
baf8532a AD |
1044 | s_attr->dev_attr.show = mspro_block_attr_show(s_attr->id); |
1045 | ||
1046 | if (!rc) | |
1047 | continue; | |
1048 | ||
1049 | s_attr->size = rc; | |
1050 | s_attr->data = kmalloc(rc, GFP_KERNEL); | |
1051 | if (!s_attr->data) { | |
1052 | rc = -ENOMEM; | |
1053 | goto out_free_buffer; | |
1054 | } | |
1055 | ||
1056 | if (((addr / msb->page_size) | |
1057 | == be32_to_cpu(param.data_address)) | |
1058 | && (((addr + rc - 1) / msb->page_size) | |
1059 | == be32_to_cpu(param.data_address))) { | |
1060 | memcpy(s_attr->data, buffer + addr % msb->page_size, | |
1061 | rc); | |
1062 | continue; | |
1063 | } | |
1064 | ||
1065 | if (page_count <= (rc / msb->page_size)) { | |
1066 | kfree(buffer); | |
1067 | page_count = (rc / msb->page_size) + 1; | |
1068 | buffer = kmalloc(page_count * msb->page_size, | |
1069 | GFP_KERNEL); | |
1070 | if (!buffer) { | |
1071 | rc = -ENOMEM; | |
1072 | goto out_free_attr; | |
1073 | } | |
1074 | } | |
1075 | ||
1076 | param.system = msb->system; | |
1077 | param.data_count = cpu_to_be16((rc / msb->page_size) + 1); | |
1078 | param.data_address = cpu_to_be32(addr / msb->page_size); | |
e1f19995 | 1079 | param.tpc_param = 0; |
baf8532a AD |
1080 | |
1081 | sg_init_one(&msb->req_sg[0], buffer, | |
1082 | be16_to_cpu(param.data_count) * msb->page_size); | |
1083 | msb->seg_count = 1; | |
1084 | msb->current_seg = 0; | |
1085 | msb->current_page = 0; | |
1086 | msb->data_dir = READ; | |
1087 | msb->transfer_cmd = MSPRO_CMD_READ_ATRB; | |
1088 | ||
1089 | dev_dbg(&card->dev, "reading attribute pages %x, %x\n", | |
1090 | be32_to_cpu(param.data_address), | |
1091 | be16_to_cpu(param.data_count)); | |
1092 | ||
1093 | card->next_request = h_mspro_block_req_init; | |
1094 | msb->mrq_handler = h_mspro_block_transfer_data; | |
1095 | memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, | |
1096 | (char *)¶m, sizeof(param)); | |
1097 | memstick_new_req(card->host); | |
1098 | wait_for_completion(&card->mrq_complete); | |
1099 | if (card->current_mrq.error) { | |
1100 | rc = card->current_mrq.error; | |
1101 | goto out_free_buffer; | |
1102 | } | |
1103 | ||
1104 | memcpy(s_attr->data, buffer + addr % msb->page_size, rc); | |
1105 | } | |
1106 | ||
1107 | rc = 0; | |
1108 | out_free_buffer: | |
1109 | kfree(buffer); | |
1110 | out_free_attr: | |
1111 | kfree(attr); | |
1112 | return rc; | |
1113 | } | |
1114 | ||
1115 | static int mspro_block_init_card(struct memstick_dev *card) | |
1116 | { | |
1117 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
1118 | struct memstick_host *host = card->host; | |
1119 | int rc = 0; | |
1120 | ||
e1f19995 | 1121 | msb->system = MEMSTICK_SYS_SERIAL; |
baf8532a AD |
1122 | card->reg_addr.r_offset = offsetof(struct mspro_register, status); |
1123 | card->reg_addr.r_length = sizeof(struct ms_status_register); | |
1124 | card->reg_addr.w_offset = offsetof(struct mspro_register, param); | |
1125 | card->reg_addr.w_length = sizeof(struct mspro_param_register); | |
1126 | ||
1127 | if (memstick_set_rw_addr(card)) | |
1128 | return -EIO; | |
1129 | ||
ead70773 | 1130 | msb->caps = host->caps; |
8e82f8c3 AD |
1131 | |
1132 | msleep(150); | |
1133 | rc = mspro_block_wait_for_ced(card); | |
962ee1b1 AD |
1134 | if (rc) |
1135 | return rc; | |
baf8532a | 1136 | |
8e82f8c3 | 1137 | rc = mspro_block_switch_interface(card); |
baf8532a AD |
1138 | if (rc) |
1139 | return rc; | |
8e82f8c3 | 1140 | |
baf8532a | 1141 | dev_dbg(&card->dev, "card activated\n"); |
ead70773 AD |
1142 | if (msb->system != MEMSTICK_SYS_SERIAL) |
1143 | msb->caps |= MEMSTICK_CAP_AUTO_GET_INT; | |
baf8532a AD |
1144 | |
1145 | card->next_request = h_mspro_block_req_init; | |
1146 | msb->mrq_handler = h_mspro_block_get_ro; | |
1147 | memstick_init_req(&card->current_mrq, MS_TPC_READ_REG, NULL, | |
1148 | sizeof(struct ms_status_register)); | |
1149 | memstick_new_req(card->host); | |
1150 | wait_for_completion(&card->mrq_complete); | |
1151 | if (card->current_mrq.error) | |
1152 | return card->current_mrq.error; | |
1153 | ||
1154 | dev_dbg(&card->dev, "card r/w status %d\n", msb->read_only ? 0 : 1); | |
1155 | ||
1156 | msb->page_size = 512; | |
1157 | rc = mspro_block_read_attributes(card); | |
1158 | if (rc) | |
1159 | return rc; | |
1160 | ||
1161 | dev_dbg(&card->dev, "attributes loaded\n"); | |
1162 | return 0; | |
1163 | ||
1164 | } | |
1165 | ||
1166 | static int mspro_block_init_disk(struct memstick_dev *card) | |
1167 | { | |
1168 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
1169 | struct memstick_host *host = card->host; | |
1170 | struct mspro_devinfo *dev_info = NULL; | |
1171 | struct mspro_sys_info *sys_info = NULL; | |
1172 | struct mspro_sys_attr *s_attr = NULL; | |
1173 | int rc, disk_id; | |
1174 | u64 limit = BLK_BOUNCE_HIGH; | |
1175 | unsigned long capacity; | |
1176 | ||
c4c66cf1 GKH |
1177 | if (host->dev.dma_mask && *(host->dev.dma_mask)) |
1178 | limit = *(host->dev.dma_mask); | |
baf8532a AD |
1179 | |
1180 | for (rc = 0; msb->attr_group.attrs[rc]; ++rc) { | |
1181 | s_attr = mspro_from_sysfs_attr(msb->attr_group.attrs[rc]); | |
1182 | ||
1183 | if (s_attr->id == MSPRO_BLOCK_ID_DEVINFO) | |
1184 | dev_info = s_attr->data; | |
1185 | else if (s_attr->id == MSPRO_BLOCK_ID_SYSINFO) | |
1186 | sys_info = s_attr->data; | |
1187 | } | |
1188 | ||
1189 | if (!dev_info || !sys_info) | |
1190 | return -ENODEV; | |
1191 | ||
1192 | msb->cylinders = be16_to_cpu(dev_info->cylinders); | |
1193 | msb->heads = be16_to_cpu(dev_info->heads); | |
1194 | msb->sectors_per_track = be16_to_cpu(dev_info->sectors_per_track); | |
1195 | ||
1196 | msb->page_size = be16_to_cpu(sys_info->unit_size); | |
1197 | ||
1198 | if (!idr_pre_get(&mspro_block_disk_idr, GFP_KERNEL)) | |
1199 | return -ENOMEM; | |
1200 | ||
1201 | mutex_lock(&mspro_block_disk_lock); | |
1202 | rc = idr_get_new(&mspro_block_disk_idr, card, &disk_id); | |
1203 | mutex_unlock(&mspro_block_disk_lock); | |
1204 | ||
1205 | if (rc) | |
1206 | return rc; | |
1207 | ||
8e82f8c3 | 1208 | if ((disk_id << MSPRO_BLOCK_PART_SHIFT) > 255) { |
baf8532a AD |
1209 | rc = -ENOSPC; |
1210 | goto out_release_id; | |
1211 | } | |
1212 | ||
8e82f8c3 | 1213 | msb->disk = alloc_disk(1 << MSPRO_BLOCK_PART_SHIFT); |
baf8532a AD |
1214 | if (!msb->disk) { |
1215 | rc = -ENOMEM; | |
1216 | goto out_release_id; | |
1217 | } | |
1218 | ||
f1d82698 | 1219 | msb->queue = blk_init_queue(mspro_block_submit_req, &msb->q_lock); |
baf8532a AD |
1220 | if (!msb->queue) { |
1221 | rc = -ENOMEM; | |
1222 | goto out_put_disk; | |
1223 | } | |
1224 | ||
1225 | msb->queue->queuedata = card; | |
f1d82698 | 1226 | blk_queue_prep_rq(msb->queue, mspro_block_prepare_req); |
baf8532a AD |
1227 | |
1228 | blk_queue_bounce_limit(msb->queue, limit); | |
1229 | blk_queue_max_sectors(msb->queue, MSPRO_BLOCK_MAX_PAGES); | |
1230 | blk_queue_max_phys_segments(msb->queue, MSPRO_BLOCK_MAX_SEGS); | |
1231 | blk_queue_max_hw_segments(msb->queue, MSPRO_BLOCK_MAX_SEGS); | |
1232 | blk_queue_max_segment_size(msb->queue, | |
1233 | MSPRO_BLOCK_MAX_PAGES * msb->page_size); | |
1234 | ||
1235 | msb->disk->major = major; | |
8e82f8c3 | 1236 | msb->disk->first_minor = disk_id << MSPRO_BLOCK_PART_SHIFT; |
baf8532a AD |
1237 | msb->disk->fops = &ms_block_bdops; |
1238 | msb->usage_count = 1; | |
1239 | msb->disk->private_data = msb; | |
1240 | msb->disk->queue = msb->queue; | |
1241 | msb->disk->driverfs_dev = &card->dev; | |
1242 | ||
1243 | sprintf(msb->disk->disk_name, "mspblk%d", disk_id); | |
1244 | ||
1245 | blk_queue_hardsect_size(msb->queue, msb->page_size); | |
1246 | ||
1247 | capacity = be16_to_cpu(sys_info->user_block_count); | |
1248 | capacity *= be16_to_cpu(sys_info->block_size); | |
1249 | capacity *= msb->page_size >> 9; | |
1250 | set_capacity(msb->disk, capacity); | |
1251 | dev_dbg(&card->dev, "capacity set %ld\n", capacity); | |
baf8532a | 1252 | |
baf8532a | 1253 | add_disk(msb->disk); |
baf8532a AD |
1254 | msb->active = 1; |
1255 | return 0; | |
1256 | ||
1257 | out_put_disk: | |
1258 | put_disk(msb->disk); | |
1259 | out_release_id: | |
1260 | mutex_lock(&mspro_block_disk_lock); | |
1261 | idr_remove(&mspro_block_disk_idr, disk_id); | |
1262 | mutex_unlock(&mspro_block_disk_lock); | |
1263 | return rc; | |
1264 | } | |
1265 | ||
1266 | static void mspro_block_data_clear(struct mspro_block_data *msb) | |
1267 | { | |
1268 | int cnt; | |
1269 | struct mspro_sys_attr *s_attr; | |
1270 | ||
1271 | if (msb->attr_group.attrs) { | |
1272 | for (cnt = 0; msb->attr_group.attrs[cnt]; ++cnt) { | |
1273 | s_attr = mspro_from_sysfs_attr(msb->attr_group | |
1274 | .attrs[cnt]); | |
1275 | kfree(s_attr->data); | |
1276 | kfree(s_attr); | |
1277 | } | |
1278 | kfree(msb->attr_group.attrs); | |
1279 | } | |
1280 | ||
1281 | msb->card = NULL; | |
1282 | } | |
1283 | ||
1284 | static int mspro_block_check_card(struct memstick_dev *card) | |
1285 | { | |
1286 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
1287 | ||
1288 | return (msb->active == 1); | |
1289 | } | |
1290 | ||
1291 | static int mspro_block_probe(struct memstick_dev *card) | |
1292 | { | |
1293 | struct mspro_block_data *msb; | |
1294 | int rc = 0; | |
1295 | ||
1296 | msb = kzalloc(sizeof(struct mspro_block_data), GFP_KERNEL); | |
1297 | if (!msb) | |
1298 | return -ENOMEM; | |
1299 | memstick_set_drvdata(card, msb); | |
1300 | msb->card = card; | |
f1d82698 | 1301 | spin_lock_init(&msb->q_lock); |
baf8532a AD |
1302 | |
1303 | rc = mspro_block_init_card(card); | |
1304 | ||
1305 | if (rc) | |
1306 | goto out_free; | |
1307 | ||
1308 | rc = sysfs_create_group(&card->dev.kobj, &msb->attr_group); | |
1309 | if (rc) | |
1310 | goto out_free; | |
1311 | ||
1312 | rc = mspro_block_init_disk(card); | |
1313 | if (!rc) { | |
1314 | card->check = mspro_block_check_card; | |
17017d8d AD |
1315 | card->stop = mspro_block_stop; |
1316 | card->start = mspro_block_start; | |
baf8532a AD |
1317 | return 0; |
1318 | } | |
1319 | ||
1320 | sysfs_remove_group(&card->dev.kobj, &msb->attr_group); | |
1321 | out_free: | |
1322 | memstick_set_drvdata(card, NULL); | |
1323 | mspro_block_data_clear(msb); | |
1324 | kfree(msb); | |
1325 | return rc; | |
1326 | } | |
1327 | ||
1328 | static void mspro_block_remove(struct memstick_dev *card) | |
1329 | { | |
1330 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
baf8532a AD |
1331 | unsigned long flags; |
1332 | ||
1333 | del_gendisk(msb->disk); | |
1334 | dev_dbg(&card->dev, "mspro block remove\n"); | |
1335 | spin_lock_irqsave(&msb->q_lock, flags); | |
f1d82698 AD |
1336 | msb->eject = 1; |
1337 | blk_start_queue(msb->queue); | |
baf8532a AD |
1338 | spin_unlock_irqrestore(&msb->q_lock, flags); |
1339 | ||
baf8532a | 1340 | blk_cleanup_queue(msb->queue); |
f1d82698 | 1341 | msb->queue = NULL; |
baf8532a AD |
1342 | |
1343 | sysfs_remove_group(&card->dev.kobj, &msb->attr_group); | |
1344 | ||
1345 | mutex_lock(&mspro_block_disk_lock); | |
1346 | mspro_block_data_clear(msb); | |
1347 | mutex_unlock(&mspro_block_disk_lock); | |
1348 | ||
1349 | mspro_block_disk_release(msb->disk); | |
1350 | memstick_set_drvdata(card, NULL); | |
1351 | } | |
1352 | ||
1353 | #ifdef CONFIG_PM | |
1354 | ||
1355 | static int mspro_block_suspend(struct memstick_dev *card, pm_message_t state) | |
1356 | { | |
1357 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
baf8532a AD |
1358 | unsigned long flags; |
1359 | ||
1360 | spin_lock_irqsave(&msb->q_lock, flags); | |
baf8532a | 1361 | blk_stop_queue(msb->queue); |
f1d82698 | 1362 | msb->active = 0; |
baf8532a AD |
1363 | spin_unlock_irqrestore(&msb->q_lock, flags); |
1364 | ||
baf8532a AD |
1365 | return 0; |
1366 | } | |
1367 | ||
1368 | static int mspro_block_resume(struct memstick_dev *card) | |
1369 | { | |
1370 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
1371 | unsigned long flags; | |
1372 | int rc = 0; | |
1373 | ||
1374 | #ifdef CONFIG_MEMSTICK_UNSAFE_RESUME | |
1375 | ||
1376 | struct mspro_block_data *new_msb; | |
1377 | struct memstick_host *host = card->host; | |
1378 | struct mspro_sys_attr *s_attr, *r_attr; | |
1379 | unsigned char cnt; | |
1380 | ||
1381 | mutex_lock(&host->lock); | |
1382 | new_msb = kzalloc(sizeof(struct mspro_block_data), GFP_KERNEL); | |
1383 | if (!new_msb) { | |
1384 | rc = -ENOMEM; | |
1385 | goto out_unlock; | |
1386 | } | |
1387 | ||
1388 | new_msb->card = card; | |
1389 | memstick_set_drvdata(card, new_msb); | |
1390 | if (mspro_block_init_card(card)) | |
1391 | goto out_free; | |
1392 | ||
1393 | for (cnt = 0; new_msb->attr_group.attrs[cnt] | |
1394 | && msb->attr_group.attrs[cnt]; ++cnt) { | |
1395 | s_attr = mspro_from_sysfs_attr(new_msb->attr_group.attrs[cnt]); | |
1396 | r_attr = mspro_from_sysfs_attr(msb->attr_group.attrs[cnt]); | |
1397 | ||
1398 | if (s_attr->id == MSPRO_BLOCK_ID_SYSINFO | |
1399 | && r_attr->id == s_attr->id) { | |
1400 | if (memcmp(s_attr->data, r_attr->data, s_attr->size)) | |
1401 | break; | |
1402 | ||
f1d82698 | 1403 | msb->active = 1; |
baf8532a AD |
1404 | break; |
1405 | } | |
1406 | } | |
1407 | ||
1408 | out_free: | |
1409 | memstick_set_drvdata(card, msb); | |
1410 | mspro_block_data_clear(new_msb); | |
1411 | kfree(new_msb); | |
1412 | out_unlock: | |
1413 | mutex_unlock(&host->lock); | |
1414 | ||
1415 | #endif /* CONFIG_MEMSTICK_UNSAFE_RESUME */ | |
1416 | ||
1417 | spin_lock_irqsave(&msb->q_lock, flags); | |
1418 | blk_start_queue(msb->queue); | |
1419 | spin_unlock_irqrestore(&msb->q_lock, flags); | |
1420 | return rc; | |
1421 | } | |
1422 | ||
1423 | #else | |
1424 | ||
1425 | #define mspro_block_suspend NULL | |
1426 | #define mspro_block_resume NULL | |
1427 | ||
1428 | #endif /* CONFIG_PM */ | |
1429 | ||
1430 | static struct memstick_device_id mspro_block_id_tbl[] = { | |
1431 | {MEMSTICK_MATCH_ALL, MEMSTICK_TYPE_PRO, MEMSTICK_CATEGORY_STORAGE_DUO, | |
8e82f8c3 | 1432 | MEMSTICK_CLASS_DUO}, |
baf8532a AD |
1433 | {} |
1434 | }; | |
1435 | ||
1436 | ||
1437 | static struct memstick_driver mspro_block_driver = { | |
1438 | .driver = { | |
1439 | .name = DRIVER_NAME, | |
1440 | .owner = THIS_MODULE | |
1441 | }, | |
1442 | .id_table = mspro_block_id_tbl, | |
1443 | .probe = mspro_block_probe, | |
1444 | .remove = mspro_block_remove, | |
1445 | .suspend = mspro_block_suspend, | |
1446 | .resume = mspro_block_resume | |
1447 | }; | |
1448 | ||
1449 | static int __init mspro_block_init(void) | |
1450 | { | |
1451 | int rc = -ENOMEM; | |
1452 | ||
1453 | rc = register_blkdev(major, DRIVER_NAME); | |
1454 | if (rc < 0) { | |
1455 | printk(KERN_ERR DRIVER_NAME ": failed to register " | |
1456 | "major %d, error %d\n", major, rc); | |
1457 | return rc; | |
1458 | } | |
1459 | if (!major) | |
1460 | major = rc; | |
1461 | ||
1462 | rc = memstick_register_driver(&mspro_block_driver); | |
1463 | if (rc) | |
1464 | unregister_blkdev(major, DRIVER_NAME); | |
1465 | return rc; | |
1466 | } | |
1467 | ||
1468 | static void __exit mspro_block_exit(void) | |
1469 | { | |
1470 | memstick_unregister_driver(&mspro_block_driver); | |
1471 | unregister_blkdev(major, DRIVER_NAME); | |
1472 | idr_destroy(&mspro_block_disk_idr); | |
1473 | } | |
1474 | ||
1475 | module_init(mspro_block_init); | |
1476 | module_exit(mspro_block_exit); | |
1477 | ||
1478 | MODULE_LICENSE("GPL"); | |
1479 | MODULE_AUTHOR("Alex Dubov"); | |
1480 | MODULE_DESCRIPTION("Sony MemoryStickPro block device driver"); | |
1481 | MODULE_DEVICE_TABLE(memstick, mspro_block_id_tbl); |