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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 | ||
33 | enum { | |
34 | MSPRO_BLOCK_ID_SYSINFO = 0x10, | |
35 | MSPRO_BLOCK_ID_MODELNAME = 0x15, | |
36 | MSPRO_BLOCK_ID_MBR = 0x20, | |
37 | MSPRO_BLOCK_ID_PBR16 = 0x21, | |
38 | MSPRO_BLOCK_ID_PBR32 = 0x22, | |
39 | MSPRO_BLOCK_ID_SPECFILEVALUES1 = 0x25, | |
40 | MSPRO_BLOCK_ID_SPECFILEVALUES2 = 0x26, | |
41 | MSPRO_BLOCK_ID_DEVINFO = 0x30 | |
42 | }; | |
43 | ||
44 | struct mspro_sys_attr { | |
45 | size_t size; | |
46 | void *data; | |
47 | unsigned char id; | |
48 | char name[32]; | |
49 | struct device_attribute dev_attr; | |
50 | }; | |
51 | ||
52 | struct mspro_attr_entry { | |
53 | unsigned int address; | |
54 | unsigned int size; | |
55 | unsigned char id; | |
56 | unsigned char reserved[3]; | |
57 | } __attribute__((packed)); | |
58 | ||
59 | struct mspro_attribute { | |
60 | unsigned short signature; | |
61 | unsigned short version; | |
62 | unsigned char count; | |
63 | unsigned char reserved[11]; | |
64 | struct mspro_attr_entry entries[]; | |
65 | } __attribute__((packed)); | |
66 | ||
67 | struct mspro_sys_info { | |
68 | unsigned char class; | |
69 | unsigned char reserved0; | |
70 | unsigned short block_size; | |
71 | unsigned short block_count; | |
72 | unsigned short user_block_count; | |
73 | unsigned short page_size; | |
74 | unsigned char reserved1[2]; | |
75 | unsigned char assembly_date[8]; | |
76 | unsigned int serial_number; | |
77 | unsigned char assembly_maker_code; | |
78 | unsigned char assembly_model_code[3]; | |
79 | unsigned short memory_maker_code; | |
80 | unsigned short memory_model_code; | |
81 | unsigned char reserved2[4]; | |
82 | unsigned char vcc; | |
83 | unsigned char vpp; | |
84 | unsigned short controller_number; | |
85 | unsigned short controller_function; | |
86 | unsigned short start_sector; | |
87 | unsigned short unit_size; | |
88 | unsigned char ms_sub_class; | |
89 | unsigned char reserved3[4]; | |
90 | unsigned char interface_type; | |
91 | unsigned short controller_code; | |
92 | unsigned char format_type; | |
93 | unsigned char reserved4; | |
94 | unsigned char device_type; | |
95 | unsigned char reserved5[7]; | |
96 | unsigned char mspro_id[16]; | |
97 | unsigned char reserved6[16]; | |
98 | } __attribute__((packed)); | |
99 | ||
100 | struct mspro_mbr { | |
101 | unsigned char boot_partition; | |
102 | unsigned char start_head; | |
103 | unsigned char start_sector; | |
104 | unsigned char start_cylinder; | |
105 | unsigned char partition_type; | |
106 | unsigned char end_head; | |
107 | unsigned char end_sector; | |
108 | unsigned char end_cylinder; | |
109 | unsigned int start_sectors; | |
110 | unsigned int sectors_per_partition; | |
111 | } __attribute__((packed)); | |
112 | ||
efb2742e AD |
113 | struct mspro_specfile { |
114 | char name[8]; | |
115 | char ext[3]; | |
116 | unsigned char attr; | |
117 | unsigned char reserved[10]; | |
118 | unsigned short time; | |
119 | unsigned short date; | |
120 | unsigned short cluster; | |
121 | unsigned int size; | |
122 | } __attribute__((packed)); | |
123 | ||
baf8532a AD |
124 | struct mspro_devinfo { |
125 | unsigned short cylinders; | |
126 | unsigned short heads; | |
127 | unsigned short bytes_per_track; | |
128 | unsigned short bytes_per_sector; | |
129 | unsigned short sectors_per_track; | |
130 | unsigned char reserved[6]; | |
131 | } __attribute__((packed)); | |
132 | ||
133 | struct mspro_block_data { | |
134 | struct memstick_dev *card; | |
135 | unsigned int usage_count; | |
ead70773 | 136 | unsigned int caps; |
baf8532a AD |
137 | struct gendisk *disk; |
138 | struct request_queue *queue; | |
f1d82698 | 139 | struct request *block_req; |
baf8532a | 140 | spinlock_t q_lock; |
baf8532a AD |
141 | |
142 | unsigned short page_size; | |
143 | unsigned short cylinders; | |
144 | unsigned short heads; | |
145 | unsigned short sectors_per_track; | |
146 | ||
147 | unsigned char system; | |
148 | unsigned char read_only:1, | |
f1d82698 | 149 | eject:1, |
baf8532a | 150 | has_request:1, |
f1d82698 AD |
151 | data_dir:1, |
152 | active:1; | |
baf8532a AD |
153 | unsigned char transfer_cmd; |
154 | ||
155 | int (*mrq_handler)(struct memstick_dev *card, | |
156 | struct memstick_request **mrq); | |
157 | ||
158 | struct attribute_group attr_group; | |
159 | ||
160 | struct scatterlist req_sg[MSPRO_BLOCK_MAX_SEGS]; | |
161 | unsigned int seg_count; | |
162 | unsigned int current_seg; | |
f1d82698 | 163 | unsigned int current_page; |
baf8532a AD |
164 | }; |
165 | ||
166 | static DEFINE_IDR(mspro_block_disk_idr); | |
167 | static DEFINE_MUTEX(mspro_block_disk_lock); | |
168 | ||
f1d82698 AD |
169 | static int mspro_block_complete_req(struct memstick_dev *card, int error); |
170 | ||
baf8532a AD |
171 | /*** Block device ***/ |
172 | ||
173 | static int mspro_block_bd_open(struct inode *inode, struct file *filp) | |
174 | { | |
175 | struct gendisk *disk = inode->i_bdev->bd_disk; | |
176 | struct mspro_block_data *msb = disk->private_data; | |
177 | int rc = -ENXIO; | |
178 | ||
179 | mutex_lock(&mspro_block_disk_lock); | |
180 | ||
181 | if (msb && msb->card) { | |
182 | msb->usage_count++; | |
183 | if ((filp->f_mode & FMODE_WRITE) && msb->read_only) | |
184 | rc = -EROFS; | |
185 | else | |
186 | rc = 0; | |
187 | } | |
188 | ||
189 | mutex_unlock(&mspro_block_disk_lock); | |
190 | ||
191 | return rc; | |
192 | } | |
193 | ||
194 | ||
195 | static int mspro_block_disk_release(struct gendisk *disk) | |
196 | { | |
197 | struct mspro_block_data *msb = disk->private_data; | |
198 | int disk_id = disk->first_minor >> MEMSTICK_PART_SHIFT; | |
199 | ||
200 | mutex_lock(&mspro_block_disk_lock); | |
201 | ||
f1d82698 AD |
202 | if (msb) { |
203 | if (msb->usage_count) | |
204 | msb->usage_count--; | |
205 | ||
baf8532a AD |
206 | if (!msb->usage_count) { |
207 | kfree(msb); | |
208 | disk->private_data = NULL; | |
209 | idr_remove(&mspro_block_disk_idr, disk_id); | |
210 | put_disk(disk); | |
211 | } | |
212 | } | |
213 | ||
214 | mutex_unlock(&mspro_block_disk_lock); | |
215 | ||
216 | return 0; | |
217 | } | |
218 | ||
219 | static int mspro_block_bd_release(struct inode *inode, struct file *filp) | |
220 | { | |
221 | struct gendisk *disk = inode->i_bdev->bd_disk; | |
222 | return mspro_block_disk_release(disk); | |
223 | } | |
224 | ||
225 | static int mspro_block_bd_getgeo(struct block_device *bdev, | |
226 | struct hd_geometry *geo) | |
227 | { | |
228 | struct mspro_block_data *msb = bdev->bd_disk->private_data; | |
229 | ||
230 | geo->heads = msb->heads; | |
231 | geo->sectors = msb->sectors_per_track; | |
232 | geo->cylinders = msb->cylinders; | |
233 | ||
234 | return 0; | |
235 | } | |
236 | ||
237 | static struct block_device_operations ms_block_bdops = { | |
238 | .open = mspro_block_bd_open, | |
239 | .release = mspro_block_bd_release, | |
240 | .getgeo = mspro_block_bd_getgeo, | |
241 | .owner = THIS_MODULE | |
242 | }; | |
243 | ||
244 | /*** Information ***/ | |
245 | ||
246 | static struct mspro_sys_attr *mspro_from_sysfs_attr(struct attribute *attr) | |
247 | { | |
248 | struct device_attribute *dev_attr | |
249 | = container_of(attr, struct device_attribute, attr); | |
250 | return container_of(dev_attr, struct mspro_sys_attr, dev_attr); | |
251 | } | |
252 | ||
253 | static const char *mspro_block_attr_name(unsigned char tag) | |
254 | { | |
255 | switch (tag) { | |
256 | case MSPRO_BLOCK_ID_SYSINFO: | |
257 | return "attr_sysinfo"; | |
258 | case MSPRO_BLOCK_ID_MODELNAME: | |
259 | return "attr_modelname"; | |
260 | case MSPRO_BLOCK_ID_MBR: | |
261 | return "attr_mbr"; | |
262 | case MSPRO_BLOCK_ID_PBR16: | |
263 | return "attr_pbr16"; | |
264 | case MSPRO_BLOCK_ID_PBR32: | |
265 | return "attr_pbr32"; | |
266 | case MSPRO_BLOCK_ID_SPECFILEVALUES1: | |
267 | return "attr_specfilevalues1"; | |
268 | case MSPRO_BLOCK_ID_SPECFILEVALUES2: | |
269 | return "attr_specfilevalues2"; | |
270 | case MSPRO_BLOCK_ID_DEVINFO: | |
271 | return "attr_devinfo"; | |
272 | default: | |
273 | return NULL; | |
274 | }; | |
275 | } | |
276 | ||
277 | typedef ssize_t (*sysfs_show_t)(struct device *dev, | |
278 | struct device_attribute *attr, | |
279 | char *buffer); | |
280 | ||
281 | static ssize_t mspro_block_attr_show_default(struct device *dev, | |
282 | struct device_attribute *attr, | |
283 | char *buffer) | |
284 | { | |
285 | struct mspro_sys_attr *s_attr = container_of(attr, | |
286 | struct mspro_sys_attr, | |
287 | dev_attr); | |
288 | ||
289 | ssize_t cnt, rc = 0; | |
290 | ||
291 | for (cnt = 0; cnt < s_attr->size; cnt++) { | |
292 | if (cnt && !(cnt % 16)) { | |
293 | if (PAGE_SIZE - rc) | |
294 | buffer[rc++] = '\n'; | |
295 | } | |
296 | ||
297 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "%02x ", | |
298 | ((unsigned char *)s_attr->data)[cnt]); | |
299 | } | |
300 | return rc; | |
301 | } | |
302 | ||
303 | static ssize_t mspro_block_attr_show_sysinfo(struct device *dev, | |
304 | struct device_attribute *attr, | |
305 | char *buffer) | |
306 | { | |
307 | struct mspro_sys_attr *x_attr = container_of(attr, | |
308 | struct mspro_sys_attr, | |
309 | dev_attr); | |
310 | struct mspro_sys_info *x_sys = x_attr->data; | |
311 | ssize_t rc = 0; | |
251cc9b9 AD |
312 | int date_tz = 0, date_tz_f = 0; |
313 | ||
314 | if (x_sys->assembly_date[0] > 0x80U) { | |
315 | date_tz = (~x_sys->assembly_date[0]) + 1; | |
316 | date_tz_f = date_tz & 3; | |
317 | date_tz >>= 2; | |
318 | date_tz = -date_tz; | |
319 | date_tz_f *= 15; | |
320 | } else if (x_sys->assembly_date[0] < 0x80U) { | |
321 | date_tz = x_sys->assembly_date[0]; | |
322 | date_tz_f = date_tz & 3; | |
323 | date_tz >>= 2; | |
324 | date_tz_f *= 15; | |
325 | } | |
baf8532a AD |
326 | |
327 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "class: %x\n", | |
328 | x_sys->class); | |
329 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "block size: %x\n", | |
330 | be16_to_cpu(x_sys->block_size)); | |
331 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "block count: %x\n", | |
332 | be16_to_cpu(x_sys->block_count)); | |
333 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "user block count: %x\n", | |
334 | be16_to_cpu(x_sys->user_block_count)); | |
335 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "page size: %x\n", | |
336 | be16_to_cpu(x_sys->page_size)); | |
337 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "assembly date: " | |
251cc9b9 AD |
338 | "GMT%+d:%d %04u-%02u-%02u %02u:%02u:%02u\n", |
339 | date_tz, date_tz_f, | |
baf8532a AD |
340 | be16_to_cpu(*(unsigned short *) |
341 | &x_sys->assembly_date[1]), | |
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 AD |
674 | if (!msb->seg_count) { |
675 | chunk = __blk_end_request(msb->block_req, -ENOMEM, | |
676 | blk_rq_cur_bytes(msb->block_req)); | |
677 | continue; | |
678 | } | |
baf8532a | 679 | |
f1d82698 AD |
680 | t_sec = msb->block_req->sector << 9; |
681 | sector_div(t_sec, msb->page_size); | |
baf8532a | 682 | |
f1d82698 AD |
683 | count = msb->block_req->nr_sectors << 9; |
684 | count /= msb->page_size; | |
baf8532a | 685 | |
f1d82698 AD |
686 | param.system = msb->system; |
687 | param.data_count = cpu_to_be16(count); | |
688 | param.data_address = cpu_to_be32((uint32_t)t_sec); | |
689 | param.tpc_param = 0; | |
690 | ||
691 | msb->data_dir = rq_data_dir(msb->block_req); | |
692 | msb->transfer_cmd = msb->data_dir == READ | |
693 | ? MSPRO_CMD_READ_DATA | |
694 | : MSPRO_CMD_WRITE_DATA; | |
695 | ||
696 | dev_dbg(&card->dev, "data transfer: cmd %x, " | |
697 | "lba %x, count %x\n", msb->transfer_cmd, | |
698 | be32_to_cpu(param.data_address), count); | |
699 | ||
700 | card->next_request = h_mspro_block_req_init; | |
701 | msb->mrq_handler = h_mspro_block_transfer_data; | |
702 | memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, | |
703 | ¶m, sizeof(param)); | |
704 | memstick_new_req(card->host); | |
705 | return 0; | |
706 | } | |
707 | ||
708 | dev_dbg(&card->dev, "elv_next\n"); | |
709 | msb->block_req = elv_next_request(msb->queue); | |
710 | if (!msb->block_req) { | |
711 | dev_dbg(&card->dev, "issue end\n"); | |
712 | return -EAGAIN; | |
713 | } | |
714 | ||
715 | dev_dbg(&card->dev, "trying again\n"); | |
716 | chunk = 1; | |
717 | goto try_again; | |
baf8532a AD |
718 | } |
719 | ||
f1d82698 | 720 | static int mspro_block_complete_req(struct memstick_dev *card, int error) |
baf8532a | 721 | { |
f1d82698 AD |
722 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
723 | int chunk, cnt; | |
724 | unsigned int t_len = 0; | |
baf8532a AD |
725 | unsigned long flags; |
726 | ||
727 | spin_lock_irqsave(&msb->q_lock, flags); | |
f1d82698 AD |
728 | dev_dbg(&card->dev, "complete %d, %d\n", msb->has_request ? 1 : 0, |
729 | error); | |
730 | ||
731 | if (msb->has_request) { | |
732 | /* Nothing to do - not really an error */ | |
733 | if (error == -EAGAIN) | |
734 | error = 0; | |
735 | ||
736 | if (error || (card->current_mrq.tpc == MSPRO_CMD_STOP)) { | |
737 | if (msb->data_dir == READ) { | |
738 | for (cnt = 0; cnt < msb->current_seg; cnt++) | |
739 | t_len += msb->req_sg[cnt].length | |
740 | / msb->page_size; | |
741 | ||
742 | if (msb->current_page) | |
743 | t_len += msb->current_page - 1; | |
744 | ||
745 | t_len *= msb->page_size; | |
746 | } | |
747 | } else | |
748 | t_len = msb->block_req->nr_sectors << 9; | |
749 | ||
750 | dev_dbg(&card->dev, "transferred %x (%d)\n", t_len, error); | |
751 | ||
752 | if (error && !t_len) | |
753 | t_len = blk_rq_cur_bytes(msb->block_req); | |
754 | ||
755 | chunk = __blk_end_request(msb->block_req, error, t_len); | |
756 | ||
757 | error = mspro_block_issue_req(card, chunk); | |
758 | ||
759 | if (!error) | |
760 | goto out; | |
761 | else | |
762 | msb->has_request = 0; | |
763 | } else { | |
764 | if (!error) | |
765 | error = -EAGAIN; | |
766 | } | |
767 | ||
768 | card->next_request = h_mspro_block_default_bad; | |
769 | complete_all(&card->mrq_complete); | |
770 | out: | |
baf8532a | 771 | spin_unlock_irqrestore(&msb->q_lock, flags); |
f1d82698 | 772 | return error; |
baf8532a AD |
773 | } |
774 | ||
17017d8d AD |
775 | static void mspro_block_stop(struct memstick_dev *card) |
776 | { | |
777 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
778 | int rc = 0; | |
779 | unsigned long flags; | |
780 | ||
781 | while (1) { | |
782 | spin_lock_irqsave(&msb->q_lock, flags); | |
783 | if (!msb->has_request) { | |
784 | blk_stop_queue(msb->queue); | |
785 | rc = 1; | |
786 | } | |
787 | spin_unlock_irqrestore(&msb->q_lock, flags); | |
788 | ||
789 | if (rc) | |
790 | break; | |
791 | ||
792 | wait_for_completion(&card->mrq_complete); | |
793 | } | |
794 | } | |
795 | ||
796 | static void mspro_block_start(struct memstick_dev *card) | |
797 | { | |
798 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
799 | unsigned long flags; | |
800 | ||
801 | spin_lock_irqsave(&msb->q_lock, flags); | |
802 | blk_start_queue(msb->queue); | |
803 | spin_unlock_irqrestore(&msb->q_lock, flags); | |
804 | } | |
805 | ||
f1d82698 | 806 | static int mspro_block_prepare_req(struct request_queue *q, struct request *req) |
baf8532a | 807 | { |
f1d82698 AD |
808 | if (!blk_fs_request(req) && !blk_pc_request(req)) { |
809 | blk_dump_rq_flags(req, "MSPro unsupported request"); | |
810 | return BLKPREP_KILL; | |
811 | } | |
baf8532a | 812 | |
f1d82698 | 813 | req->cmd_flags |= REQ_DONTPREP; |
baf8532a | 814 | |
f1d82698 | 815 | return BLKPREP_OK; |
baf8532a AD |
816 | } |
817 | ||
f1d82698 | 818 | static void mspro_block_submit_req(struct request_queue *q) |
baf8532a AD |
819 | { |
820 | struct memstick_dev *card = q->queuedata; | |
821 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
822 | struct request *req = NULL; | |
823 | ||
f1d82698 AD |
824 | if (msb->has_request) |
825 | return; | |
826 | ||
827 | if (msb->eject) { | |
baf8532a AD |
828 | while ((req = elv_next_request(q)) != NULL) |
829 | end_queued_request(req, -ENODEV); | |
f1d82698 AD |
830 | |
831 | return; | |
baf8532a | 832 | } |
f1d82698 AD |
833 | |
834 | msb->has_request = 1; | |
835 | if (mspro_block_issue_req(card, 0)) | |
836 | msb->has_request = 0; | |
baf8532a AD |
837 | } |
838 | ||
839 | /*** Initialization ***/ | |
840 | ||
841 | static int mspro_block_wait_for_ced(struct memstick_dev *card) | |
842 | { | |
843 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
844 | ||
845 | card->next_request = h_mspro_block_req_init; | |
846 | msb->mrq_handler = h_mspro_block_wait_for_ced; | |
847 | memstick_init_req(&card->current_mrq, MS_TPC_GET_INT, NULL, 1); | |
848 | memstick_new_req(card->host); | |
849 | wait_for_completion(&card->mrq_complete); | |
850 | return card->current_mrq.error; | |
851 | } | |
852 | ||
962ee1b1 AD |
853 | static int mspro_block_set_interface(struct memstick_dev *card, |
854 | unsigned char sys_reg) | |
baf8532a AD |
855 | { |
856 | struct memstick_host *host = card->host; | |
857 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
858 | struct mspro_param_register param = { | |
962ee1b1 | 859 | .system = sys_reg, |
baf8532a AD |
860 | .data_count = 0, |
861 | .data_address = 0, | |
e1f19995 | 862 | .tpc_param = 0 |
baf8532a AD |
863 | }; |
864 | ||
865 | card->next_request = h_mspro_block_req_init; | |
866 | msb->mrq_handler = h_mspro_block_default; | |
867 | memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, ¶m, | |
868 | sizeof(param)); | |
869 | memstick_new_req(host); | |
870 | wait_for_completion(&card->mrq_complete); | |
962ee1b1 AD |
871 | return card->current_mrq.error; |
872 | } | |
873 | ||
874 | static int mspro_block_switch_interface(struct memstick_dev *card) | |
875 | { | |
876 | struct memstick_host *host = card->host; | |
877 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
878 | int rc = 0; | |
879 | ||
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", | |
888 | card->dev.bus_id, rc); | |
889 | return 0; | |
890 | } | |
baf8532a | 891 | |
e1f19995 AD |
892 | msb->system = MEMSTICK_SYS_PAR4; |
893 | host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_PAR4); | |
962ee1b1 AD |
894 | printk(KERN_INFO "%s: switching to 4-bit parallel mode\n", |
895 | card->dev.bus_id); | |
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", | |
906 | card->dev.bus_id); | |
907 | } else | |
908 | printk(KERN_WARNING | |
909 | "%s: could not switch to 8-bit mode, error %d\n", | |
910 | card->dev.bus_id, rc); | |
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", | |
923 | card->dev.bus_id); | |
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); | |
baf8532a | 933 | } |
962ee1b1 | 934 | return rc; |
baf8532a AD |
935 | } |
936 | ||
937 | /* Memory allocated for attributes by this function should be freed by | |
938 | * mspro_block_data_clear, no matter if the initialization process succeded | |
939 | * or failed. | |
940 | */ | |
941 | static int mspro_block_read_attributes(struct memstick_dev *card) | |
942 | { | |
943 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
944 | struct mspro_param_register param = { | |
945 | .system = msb->system, | |
946 | .data_count = cpu_to_be16(1), | |
947 | .data_address = 0, | |
e1f19995 | 948 | .tpc_param = 0 |
baf8532a AD |
949 | }; |
950 | struct mspro_attribute *attr = NULL; | |
951 | struct mspro_sys_attr *s_attr = NULL; | |
952 | unsigned char *buffer = NULL; | |
953 | int cnt, rc, attr_count; | |
954 | unsigned int addr; | |
955 | unsigned short page_count; | |
956 | ||
957 | attr = kmalloc(msb->page_size, GFP_KERNEL); | |
958 | if (!attr) | |
959 | return -ENOMEM; | |
960 | ||
961 | sg_init_one(&msb->req_sg[0], attr, msb->page_size); | |
962 | msb->seg_count = 1; | |
963 | msb->current_seg = 0; | |
964 | msb->current_page = 0; | |
965 | msb->data_dir = READ; | |
966 | msb->transfer_cmd = MSPRO_CMD_READ_ATRB; | |
967 | ||
968 | card->next_request = h_mspro_block_req_init; | |
969 | msb->mrq_handler = h_mspro_block_transfer_data; | |
970 | memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, ¶m, | |
971 | sizeof(param)); | |
972 | memstick_new_req(card->host); | |
973 | wait_for_completion(&card->mrq_complete); | |
974 | if (card->current_mrq.error) { | |
975 | rc = card->current_mrq.error; | |
976 | goto out_free_attr; | |
977 | } | |
978 | ||
979 | if (be16_to_cpu(attr->signature) != MSPRO_BLOCK_SIGNATURE) { | |
980 | printk(KERN_ERR "%s: unrecognized device signature %x\n", | |
981 | card->dev.bus_id, be16_to_cpu(attr->signature)); | |
982 | rc = -ENODEV; | |
983 | goto out_free_attr; | |
984 | } | |
985 | ||
986 | if (attr->count > MSPRO_BLOCK_MAX_ATTRIBUTES) { | |
987 | printk(KERN_WARNING "%s: way too many attribute entries\n", | |
988 | card->dev.bus_id); | |
989 | attr_count = MSPRO_BLOCK_MAX_ATTRIBUTES; | |
990 | } else | |
991 | attr_count = attr->count; | |
992 | ||
993 | msb->attr_group.attrs = kzalloc((attr_count + 1) | |
994 | * sizeof(struct attribute), | |
995 | GFP_KERNEL); | |
996 | if (!msb->attr_group.attrs) { | |
997 | rc = -ENOMEM; | |
998 | goto out_free_attr; | |
999 | } | |
1000 | msb->attr_group.name = "media_attributes"; | |
1001 | ||
1002 | buffer = kmalloc(msb->page_size, GFP_KERNEL); | |
1003 | if (!buffer) { | |
1004 | rc = -ENOMEM; | |
1005 | goto out_free_attr; | |
1006 | } | |
1007 | memcpy(buffer, (char *)attr, msb->page_size); | |
1008 | page_count = 1; | |
1009 | ||
1010 | for (cnt = 0; cnt < attr_count; ++cnt) { | |
1011 | s_attr = kzalloc(sizeof(struct mspro_sys_attr), GFP_KERNEL); | |
1012 | if (!s_attr) { | |
1013 | rc = -ENOMEM; | |
1014 | goto out_free_buffer; | |
1015 | } | |
1016 | ||
1017 | msb->attr_group.attrs[cnt] = &s_attr->dev_attr.attr; | |
1018 | addr = be32_to_cpu(attr->entries[cnt].address); | |
1019 | rc = be32_to_cpu(attr->entries[cnt].size); | |
1020 | dev_dbg(&card->dev, "adding attribute %d: id %x, address %x, " | |
1021 | "size %x\n", cnt, attr->entries[cnt].id, addr, rc); | |
1022 | s_attr->id = attr->entries[cnt].id; | |
1023 | if (mspro_block_attr_name(s_attr->id)) | |
1024 | snprintf(s_attr->name, sizeof(s_attr->name), "%s", | |
1025 | mspro_block_attr_name(attr->entries[cnt].id)); | |
1026 | else | |
1027 | snprintf(s_attr->name, sizeof(s_attr->name), | |
1028 | "attr_x%02x", attr->entries[cnt].id); | |
1029 | ||
1030 | s_attr->dev_attr.attr.name = s_attr->name; | |
1031 | s_attr->dev_attr.attr.mode = S_IRUGO; | |
1032 | s_attr->dev_attr.attr.owner = THIS_MODULE; | |
1033 | s_attr->dev_attr.show = mspro_block_attr_show(s_attr->id); | |
1034 | ||
1035 | if (!rc) | |
1036 | continue; | |
1037 | ||
1038 | s_attr->size = rc; | |
1039 | s_attr->data = kmalloc(rc, GFP_KERNEL); | |
1040 | if (!s_attr->data) { | |
1041 | rc = -ENOMEM; | |
1042 | goto out_free_buffer; | |
1043 | } | |
1044 | ||
1045 | if (((addr / msb->page_size) | |
1046 | == be32_to_cpu(param.data_address)) | |
1047 | && (((addr + rc - 1) / msb->page_size) | |
1048 | == be32_to_cpu(param.data_address))) { | |
1049 | memcpy(s_attr->data, buffer + addr % msb->page_size, | |
1050 | rc); | |
1051 | continue; | |
1052 | } | |
1053 | ||
1054 | if (page_count <= (rc / msb->page_size)) { | |
1055 | kfree(buffer); | |
1056 | page_count = (rc / msb->page_size) + 1; | |
1057 | buffer = kmalloc(page_count * msb->page_size, | |
1058 | GFP_KERNEL); | |
1059 | if (!buffer) { | |
1060 | rc = -ENOMEM; | |
1061 | goto out_free_attr; | |
1062 | } | |
1063 | } | |
1064 | ||
1065 | param.system = msb->system; | |
1066 | param.data_count = cpu_to_be16((rc / msb->page_size) + 1); | |
1067 | param.data_address = cpu_to_be32(addr / msb->page_size); | |
e1f19995 | 1068 | param.tpc_param = 0; |
baf8532a AD |
1069 | |
1070 | sg_init_one(&msb->req_sg[0], buffer, | |
1071 | be16_to_cpu(param.data_count) * msb->page_size); | |
1072 | msb->seg_count = 1; | |
1073 | msb->current_seg = 0; | |
1074 | msb->current_page = 0; | |
1075 | msb->data_dir = READ; | |
1076 | msb->transfer_cmd = MSPRO_CMD_READ_ATRB; | |
1077 | ||
1078 | dev_dbg(&card->dev, "reading attribute pages %x, %x\n", | |
1079 | be32_to_cpu(param.data_address), | |
1080 | be16_to_cpu(param.data_count)); | |
1081 | ||
1082 | card->next_request = h_mspro_block_req_init; | |
1083 | msb->mrq_handler = h_mspro_block_transfer_data; | |
1084 | memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, | |
1085 | (char *)¶m, sizeof(param)); | |
1086 | memstick_new_req(card->host); | |
1087 | wait_for_completion(&card->mrq_complete); | |
1088 | if (card->current_mrq.error) { | |
1089 | rc = card->current_mrq.error; | |
1090 | goto out_free_buffer; | |
1091 | } | |
1092 | ||
1093 | memcpy(s_attr->data, buffer + addr % msb->page_size, rc); | |
1094 | } | |
1095 | ||
1096 | rc = 0; | |
1097 | out_free_buffer: | |
1098 | kfree(buffer); | |
1099 | out_free_attr: | |
1100 | kfree(attr); | |
1101 | return rc; | |
1102 | } | |
1103 | ||
1104 | static int mspro_block_init_card(struct memstick_dev *card) | |
1105 | { | |
1106 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
1107 | struct memstick_host *host = card->host; | |
1108 | int rc = 0; | |
1109 | ||
e1f19995 | 1110 | msb->system = MEMSTICK_SYS_SERIAL; |
baf8532a AD |
1111 | card->reg_addr.r_offset = offsetof(struct mspro_register, status); |
1112 | card->reg_addr.r_length = sizeof(struct ms_status_register); | |
1113 | card->reg_addr.w_offset = offsetof(struct mspro_register, param); | |
1114 | card->reg_addr.w_length = sizeof(struct mspro_param_register); | |
1115 | ||
1116 | if (memstick_set_rw_addr(card)) | |
1117 | return -EIO; | |
1118 | ||
ead70773 | 1119 | msb->caps = host->caps; |
962ee1b1 AD |
1120 | rc = mspro_block_switch_interface(card); |
1121 | if (rc) | |
1122 | return rc; | |
baf8532a | 1123 | |
962ee1b1 | 1124 | msleep(200); |
baf8532a AD |
1125 | rc = mspro_block_wait_for_ced(card); |
1126 | if (rc) | |
1127 | return rc; | |
1128 | dev_dbg(&card->dev, "card activated\n"); | |
ead70773 AD |
1129 | if (msb->system != MEMSTICK_SYS_SERIAL) |
1130 | msb->caps |= MEMSTICK_CAP_AUTO_GET_INT; | |
baf8532a AD |
1131 | |
1132 | card->next_request = h_mspro_block_req_init; | |
1133 | msb->mrq_handler = h_mspro_block_get_ro; | |
1134 | memstick_init_req(&card->current_mrq, MS_TPC_READ_REG, NULL, | |
1135 | sizeof(struct ms_status_register)); | |
1136 | memstick_new_req(card->host); | |
1137 | wait_for_completion(&card->mrq_complete); | |
1138 | if (card->current_mrq.error) | |
1139 | return card->current_mrq.error; | |
1140 | ||
1141 | dev_dbg(&card->dev, "card r/w status %d\n", msb->read_only ? 0 : 1); | |
1142 | ||
1143 | msb->page_size = 512; | |
1144 | rc = mspro_block_read_attributes(card); | |
1145 | if (rc) | |
1146 | return rc; | |
1147 | ||
1148 | dev_dbg(&card->dev, "attributes loaded\n"); | |
1149 | return 0; | |
1150 | ||
1151 | } | |
1152 | ||
1153 | static int mspro_block_init_disk(struct memstick_dev *card) | |
1154 | { | |
1155 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
1156 | struct memstick_host *host = card->host; | |
1157 | struct mspro_devinfo *dev_info = NULL; | |
1158 | struct mspro_sys_info *sys_info = NULL; | |
1159 | struct mspro_sys_attr *s_attr = NULL; | |
1160 | int rc, disk_id; | |
1161 | u64 limit = BLK_BOUNCE_HIGH; | |
1162 | unsigned long capacity; | |
1163 | ||
c4c66cf1 GKH |
1164 | if (host->dev.dma_mask && *(host->dev.dma_mask)) |
1165 | limit = *(host->dev.dma_mask); | |
baf8532a AD |
1166 | |
1167 | for (rc = 0; msb->attr_group.attrs[rc]; ++rc) { | |
1168 | s_attr = mspro_from_sysfs_attr(msb->attr_group.attrs[rc]); | |
1169 | ||
1170 | if (s_attr->id == MSPRO_BLOCK_ID_DEVINFO) | |
1171 | dev_info = s_attr->data; | |
1172 | else if (s_attr->id == MSPRO_BLOCK_ID_SYSINFO) | |
1173 | sys_info = s_attr->data; | |
1174 | } | |
1175 | ||
1176 | if (!dev_info || !sys_info) | |
1177 | return -ENODEV; | |
1178 | ||
1179 | msb->cylinders = be16_to_cpu(dev_info->cylinders); | |
1180 | msb->heads = be16_to_cpu(dev_info->heads); | |
1181 | msb->sectors_per_track = be16_to_cpu(dev_info->sectors_per_track); | |
1182 | ||
1183 | msb->page_size = be16_to_cpu(sys_info->unit_size); | |
1184 | ||
1185 | if (!idr_pre_get(&mspro_block_disk_idr, GFP_KERNEL)) | |
1186 | return -ENOMEM; | |
1187 | ||
1188 | mutex_lock(&mspro_block_disk_lock); | |
1189 | rc = idr_get_new(&mspro_block_disk_idr, card, &disk_id); | |
1190 | mutex_unlock(&mspro_block_disk_lock); | |
1191 | ||
1192 | if (rc) | |
1193 | return rc; | |
1194 | ||
1195 | if ((disk_id << MEMSTICK_PART_SHIFT) > 255) { | |
1196 | rc = -ENOSPC; | |
1197 | goto out_release_id; | |
1198 | } | |
1199 | ||
1200 | msb->disk = alloc_disk(1 << MEMSTICK_PART_SHIFT); | |
1201 | if (!msb->disk) { | |
1202 | rc = -ENOMEM; | |
1203 | goto out_release_id; | |
1204 | } | |
1205 | ||
f1d82698 | 1206 | msb->queue = blk_init_queue(mspro_block_submit_req, &msb->q_lock); |
baf8532a AD |
1207 | if (!msb->queue) { |
1208 | rc = -ENOMEM; | |
1209 | goto out_put_disk; | |
1210 | } | |
1211 | ||
1212 | msb->queue->queuedata = card; | |
f1d82698 | 1213 | blk_queue_prep_rq(msb->queue, mspro_block_prepare_req); |
baf8532a AD |
1214 | |
1215 | blk_queue_bounce_limit(msb->queue, limit); | |
1216 | blk_queue_max_sectors(msb->queue, MSPRO_BLOCK_MAX_PAGES); | |
1217 | blk_queue_max_phys_segments(msb->queue, MSPRO_BLOCK_MAX_SEGS); | |
1218 | blk_queue_max_hw_segments(msb->queue, MSPRO_BLOCK_MAX_SEGS); | |
1219 | blk_queue_max_segment_size(msb->queue, | |
1220 | MSPRO_BLOCK_MAX_PAGES * msb->page_size); | |
1221 | ||
1222 | msb->disk->major = major; | |
1223 | msb->disk->first_minor = disk_id << MEMSTICK_PART_SHIFT; | |
1224 | msb->disk->fops = &ms_block_bdops; | |
1225 | msb->usage_count = 1; | |
1226 | msb->disk->private_data = msb; | |
1227 | msb->disk->queue = msb->queue; | |
1228 | msb->disk->driverfs_dev = &card->dev; | |
1229 | ||
1230 | sprintf(msb->disk->disk_name, "mspblk%d", disk_id); | |
1231 | ||
1232 | blk_queue_hardsect_size(msb->queue, msb->page_size); | |
1233 | ||
1234 | capacity = be16_to_cpu(sys_info->user_block_count); | |
1235 | capacity *= be16_to_cpu(sys_info->block_size); | |
1236 | capacity *= msb->page_size >> 9; | |
1237 | set_capacity(msb->disk, capacity); | |
1238 | dev_dbg(&card->dev, "capacity set %ld\n", capacity); | |
baf8532a | 1239 | |
baf8532a | 1240 | add_disk(msb->disk); |
baf8532a AD |
1241 | msb->active = 1; |
1242 | return 0; | |
1243 | ||
1244 | out_put_disk: | |
1245 | put_disk(msb->disk); | |
1246 | out_release_id: | |
1247 | mutex_lock(&mspro_block_disk_lock); | |
1248 | idr_remove(&mspro_block_disk_idr, disk_id); | |
1249 | mutex_unlock(&mspro_block_disk_lock); | |
1250 | return rc; | |
1251 | } | |
1252 | ||
1253 | static void mspro_block_data_clear(struct mspro_block_data *msb) | |
1254 | { | |
1255 | int cnt; | |
1256 | struct mspro_sys_attr *s_attr; | |
1257 | ||
1258 | if (msb->attr_group.attrs) { | |
1259 | for (cnt = 0; msb->attr_group.attrs[cnt]; ++cnt) { | |
1260 | s_attr = mspro_from_sysfs_attr(msb->attr_group | |
1261 | .attrs[cnt]); | |
1262 | kfree(s_attr->data); | |
1263 | kfree(s_attr); | |
1264 | } | |
1265 | kfree(msb->attr_group.attrs); | |
1266 | } | |
1267 | ||
1268 | msb->card = NULL; | |
1269 | } | |
1270 | ||
1271 | static int mspro_block_check_card(struct memstick_dev *card) | |
1272 | { | |
1273 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
1274 | ||
1275 | return (msb->active == 1); | |
1276 | } | |
1277 | ||
1278 | static int mspro_block_probe(struct memstick_dev *card) | |
1279 | { | |
1280 | struct mspro_block_data *msb; | |
1281 | int rc = 0; | |
1282 | ||
1283 | msb = kzalloc(sizeof(struct mspro_block_data), GFP_KERNEL); | |
1284 | if (!msb) | |
1285 | return -ENOMEM; | |
1286 | memstick_set_drvdata(card, msb); | |
1287 | msb->card = card; | |
f1d82698 | 1288 | spin_lock_init(&msb->q_lock); |
baf8532a AD |
1289 | |
1290 | rc = mspro_block_init_card(card); | |
1291 | ||
1292 | if (rc) | |
1293 | goto out_free; | |
1294 | ||
1295 | rc = sysfs_create_group(&card->dev.kobj, &msb->attr_group); | |
1296 | if (rc) | |
1297 | goto out_free; | |
1298 | ||
1299 | rc = mspro_block_init_disk(card); | |
1300 | if (!rc) { | |
1301 | card->check = mspro_block_check_card; | |
17017d8d AD |
1302 | card->stop = mspro_block_stop; |
1303 | card->start = mspro_block_start; | |
baf8532a AD |
1304 | return 0; |
1305 | } | |
1306 | ||
1307 | sysfs_remove_group(&card->dev.kobj, &msb->attr_group); | |
1308 | out_free: | |
1309 | memstick_set_drvdata(card, NULL); | |
1310 | mspro_block_data_clear(msb); | |
1311 | kfree(msb); | |
1312 | return rc; | |
1313 | } | |
1314 | ||
1315 | static void mspro_block_remove(struct memstick_dev *card) | |
1316 | { | |
1317 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
baf8532a AD |
1318 | unsigned long flags; |
1319 | ||
1320 | del_gendisk(msb->disk); | |
1321 | dev_dbg(&card->dev, "mspro block remove\n"); | |
1322 | spin_lock_irqsave(&msb->q_lock, flags); | |
f1d82698 AD |
1323 | msb->eject = 1; |
1324 | blk_start_queue(msb->queue); | |
baf8532a AD |
1325 | spin_unlock_irqrestore(&msb->q_lock, flags); |
1326 | ||
baf8532a | 1327 | blk_cleanup_queue(msb->queue); |
f1d82698 | 1328 | msb->queue = NULL; |
baf8532a AD |
1329 | |
1330 | sysfs_remove_group(&card->dev.kobj, &msb->attr_group); | |
1331 | ||
1332 | mutex_lock(&mspro_block_disk_lock); | |
1333 | mspro_block_data_clear(msb); | |
1334 | mutex_unlock(&mspro_block_disk_lock); | |
1335 | ||
1336 | mspro_block_disk_release(msb->disk); | |
1337 | memstick_set_drvdata(card, NULL); | |
1338 | } | |
1339 | ||
1340 | #ifdef CONFIG_PM | |
1341 | ||
1342 | static int mspro_block_suspend(struct memstick_dev *card, pm_message_t state) | |
1343 | { | |
1344 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
baf8532a AD |
1345 | unsigned long flags; |
1346 | ||
1347 | spin_lock_irqsave(&msb->q_lock, flags); | |
baf8532a | 1348 | blk_stop_queue(msb->queue); |
f1d82698 | 1349 | msb->active = 0; |
baf8532a AD |
1350 | spin_unlock_irqrestore(&msb->q_lock, flags); |
1351 | ||
baf8532a AD |
1352 | return 0; |
1353 | } | |
1354 | ||
1355 | static int mspro_block_resume(struct memstick_dev *card) | |
1356 | { | |
1357 | struct mspro_block_data *msb = memstick_get_drvdata(card); | |
1358 | unsigned long flags; | |
1359 | int rc = 0; | |
1360 | ||
1361 | #ifdef CONFIG_MEMSTICK_UNSAFE_RESUME | |
1362 | ||
1363 | struct mspro_block_data *new_msb; | |
1364 | struct memstick_host *host = card->host; | |
1365 | struct mspro_sys_attr *s_attr, *r_attr; | |
1366 | unsigned char cnt; | |
1367 | ||
1368 | mutex_lock(&host->lock); | |
1369 | new_msb = kzalloc(sizeof(struct mspro_block_data), GFP_KERNEL); | |
1370 | if (!new_msb) { | |
1371 | rc = -ENOMEM; | |
1372 | goto out_unlock; | |
1373 | } | |
1374 | ||
1375 | new_msb->card = card; | |
1376 | memstick_set_drvdata(card, new_msb); | |
1377 | if (mspro_block_init_card(card)) | |
1378 | goto out_free; | |
1379 | ||
1380 | for (cnt = 0; new_msb->attr_group.attrs[cnt] | |
1381 | && msb->attr_group.attrs[cnt]; ++cnt) { | |
1382 | s_attr = mspro_from_sysfs_attr(new_msb->attr_group.attrs[cnt]); | |
1383 | r_attr = mspro_from_sysfs_attr(msb->attr_group.attrs[cnt]); | |
1384 | ||
1385 | if (s_attr->id == MSPRO_BLOCK_ID_SYSINFO | |
1386 | && r_attr->id == s_attr->id) { | |
1387 | if (memcmp(s_attr->data, r_attr->data, s_attr->size)) | |
1388 | break; | |
1389 | ||
f1d82698 | 1390 | msb->active = 1; |
baf8532a AD |
1391 | break; |
1392 | } | |
1393 | } | |
1394 | ||
1395 | out_free: | |
1396 | memstick_set_drvdata(card, msb); | |
1397 | mspro_block_data_clear(new_msb); | |
1398 | kfree(new_msb); | |
1399 | out_unlock: | |
1400 | mutex_unlock(&host->lock); | |
1401 | ||
1402 | #endif /* CONFIG_MEMSTICK_UNSAFE_RESUME */ | |
1403 | ||
1404 | spin_lock_irqsave(&msb->q_lock, flags); | |
1405 | blk_start_queue(msb->queue); | |
1406 | spin_unlock_irqrestore(&msb->q_lock, flags); | |
1407 | return rc; | |
1408 | } | |
1409 | ||
1410 | #else | |
1411 | ||
1412 | #define mspro_block_suspend NULL | |
1413 | #define mspro_block_resume NULL | |
1414 | ||
1415 | #endif /* CONFIG_PM */ | |
1416 | ||
1417 | static struct memstick_device_id mspro_block_id_tbl[] = { | |
1418 | {MEMSTICK_MATCH_ALL, MEMSTICK_TYPE_PRO, MEMSTICK_CATEGORY_STORAGE_DUO, | |
1419 | MEMSTICK_CLASS_GENERIC_DUO}, | |
1420 | {} | |
1421 | }; | |
1422 | ||
1423 | ||
1424 | static struct memstick_driver mspro_block_driver = { | |
1425 | .driver = { | |
1426 | .name = DRIVER_NAME, | |
1427 | .owner = THIS_MODULE | |
1428 | }, | |
1429 | .id_table = mspro_block_id_tbl, | |
1430 | .probe = mspro_block_probe, | |
1431 | .remove = mspro_block_remove, | |
1432 | .suspend = mspro_block_suspend, | |
1433 | .resume = mspro_block_resume | |
1434 | }; | |
1435 | ||
1436 | static int __init mspro_block_init(void) | |
1437 | { | |
1438 | int rc = -ENOMEM; | |
1439 | ||
1440 | rc = register_blkdev(major, DRIVER_NAME); | |
1441 | if (rc < 0) { | |
1442 | printk(KERN_ERR DRIVER_NAME ": failed to register " | |
1443 | "major %d, error %d\n", major, rc); | |
1444 | return rc; | |
1445 | } | |
1446 | if (!major) | |
1447 | major = rc; | |
1448 | ||
1449 | rc = memstick_register_driver(&mspro_block_driver); | |
1450 | if (rc) | |
1451 | unregister_blkdev(major, DRIVER_NAME); | |
1452 | return rc; | |
1453 | } | |
1454 | ||
1455 | static void __exit mspro_block_exit(void) | |
1456 | { | |
1457 | memstick_unregister_driver(&mspro_block_driver); | |
1458 | unregister_blkdev(major, DRIVER_NAME); | |
1459 | idr_destroy(&mspro_block_disk_idr); | |
1460 | } | |
1461 | ||
1462 | module_init(mspro_block_init); | |
1463 | module_exit(mspro_block_exit); | |
1464 | ||
1465 | MODULE_LICENSE("GPL"); | |
1466 | MODULE_AUTHOR("Alex Dubov"); | |
1467 | MODULE_DESCRIPTION("Sony MemoryStickPro block device driver"); | |
1468 | MODULE_DEVICE_TABLE(memstick, mspro_block_id_tbl); |