Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 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> |
Alex Dubov | 5936725 | 2008-03-10 11:43:42 -0700 | [diff] [blame] | 19 | #include <linux/delay.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 20 | #include <linux/slab.h> |
Arnd Bergmann | 2a48fc0 | 2010-06-02 14:28:52 +0200 | [diff] [blame] | 21 | #include <linux/mutex.h> |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 22 | #include <linux/memstick.h> |
| 23 | |
| 24 | #define DRIVER_NAME "mspro_block" |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 25 | |
| 26 | static int major; |
| 27 | module_param(major, int, 0644); |
| 28 | |
| 29 | #define MSPRO_BLOCK_MAX_SEGS 32 |
| 30 | #define MSPRO_BLOCK_MAX_PAGES ((2 << 16) - 1) |
| 31 | |
| 32 | #define MSPRO_BLOCK_SIGNATURE 0xa5c3 |
| 33 | #define MSPRO_BLOCK_MAX_ATTRIBUTES 41 |
| 34 | |
Alex Dubov | 8e82f8c | 2008-09-13 02:33:26 -0700 | [diff] [blame] | 35 | #define MSPRO_BLOCK_PART_SHIFT 3 |
| 36 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 37 | enum { |
| 38 | MSPRO_BLOCK_ID_SYSINFO = 0x10, |
| 39 | MSPRO_BLOCK_ID_MODELNAME = 0x15, |
| 40 | MSPRO_BLOCK_ID_MBR = 0x20, |
| 41 | MSPRO_BLOCK_ID_PBR16 = 0x21, |
| 42 | MSPRO_BLOCK_ID_PBR32 = 0x22, |
| 43 | MSPRO_BLOCK_ID_SPECFILEVALUES1 = 0x25, |
| 44 | MSPRO_BLOCK_ID_SPECFILEVALUES2 = 0x26, |
| 45 | MSPRO_BLOCK_ID_DEVINFO = 0x30 |
| 46 | }; |
| 47 | |
| 48 | struct mspro_sys_attr { |
| 49 | size_t size; |
| 50 | void *data; |
| 51 | unsigned char id; |
| 52 | char name[32]; |
| 53 | struct device_attribute dev_attr; |
| 54 | }; |
| 55 | |
| 56 | struct mspro_attr_entry { |
Harvey Harrison | 69347a2 | 2009-01-09 16:40:56 -0800 | [diff] [blame] | 57 | __be32 address; |
| 58 | __be32 size; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 59 | unsigned char id; |
| 60 | unsigned char reserved[3]; |
| 61 | } __attribute__((packed)); |
| 62 | |
| 63 | struct mspro_attribute { |
Harvey Harrison | 69347a2 | 2009-01-09 16:40:56 -0800 | [diff] [blame] | 64 | __be16 signature; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 65 | unsigned short version; |
| 66 | unsigned char count; |
| 67 | unsigned char reserved[11]; |
| 68 | struct mspro_attr_entry entries[]; |
| 69 | } __attribute__((packed)); |
| 70 | |
| 71 | struct mspro_sys_info { |
| 72 | unsigned char class; |
| 73 | unsigned char reserved0; |
Harvey Harrison | 69347a2 | 2009-01-09 16:40:56 -0800 | [diff] [blame] | 74 | __be16 block_size; |
| 75 | __be16 block_count; |
| 76 | __be16 user_block_count; |
| 77 | __be16 page_size; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 78 | unsigned char reserved1[2]; |
| 79 | unsigned char assembly_date[8]; |
Harvey Harrison | 69347a2 | 2009-01-09 16:40:56 -0800 | [diff] [blame] | 80 | __be32 serial_number; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 81 | unsigned char assembly_maker_code; |
| 82 | unsigned char assembly_model_code[3]; |
Harvey Harrison | 69347a2 | 2009-01-09 16:40:56 -0800 | [diff] [blame] | 83 | __be16 memory_maker_code; |
| 84 | __be16 memory_model_code; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 85 | unsigned char reserved2[4]; |
| 86 | unsigned char vcc; |
| 87 | unsigned char vpp; |
Harvey Harrison | 69347a2 | 2009-01-09 16:40:56 -0800 | [diff] [blame] | 88 | __be16 controller_number; |
| 89 | __be16 controller_function; |
| 90 | __be16 start_sector; |
| 91 | __be16 unit_size; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 92 | unsigned char ms_sub_class; |
| 93 | unsigned char reserved3[4]; |
| 94 | unsigned char interface_type; |
Harvey Harrison | 69347a2 | 2009-01-09 16:40:56 -0800 | [diff] [blame] | 95 | __be16 controller_code; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 96 | unsigned char format_type; |
| 97 | unsigned char reserved4; |
| 98 | unsigned char device_type; |
| 99 | unsigned char reserved5[7]; |
| 100 | unsigned char mspro_id[16]; |
| 101 | unsigned char reserved6[16]; |
| 102 | } __attribute__((packed)); |
| 103 | |
| 104 | struct mspro_mbr { |
| 105 | unsigned char boot_partition; |
| 106 | unsigned char start_head; |
| 107 | unsigned char start_sector; |
| 108 | unsigned char start_cylinder; |
| 109 | unsigned char partition_type; |
| 110 | unsigned char end_head; |
| 111 | unsigned char end_sector; |
| 112 | unsigned char end_cylinder; |
| 113 | unsigned int start_sectors; |
| 114 | unsigned int sectors_per_partition; |
| 115 | } __attribute__((packed)); |
| 116 | |
Alex Dubov | efb2742 | 2008-03-10 11:43:41 -0700 | [diff] [blame] | 117 | struct mspro_specfile { |
| 118 | char name[8]; |
| 119 | char ext[3]; |
| 120 | unsigned char attr; |
| 121 | unsigned char reserved[10]; |
| 122 | unsigned short time; |
| 123 | unsigned short date; |
| 124 | unsigned short cluster; |
| 125 | unsigned int size; |
| 126 | } __attribute__((packed)); |
| 127 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 128 | struct mspro_devinfo { |
Harvey Harrison | 69347a2 | 2009-01-09 16:40:56 -0800 | [diff] [blame] | 129 | __be16 cylinders; |
| 130 | __be16 heads; |
| 131 | __be16 bytes_per_track; |
| 132 | __be16 bytes_per_sector; |
| 133 | __be16 sectors_per_track; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 134 | unsigned char reserved[6]; |
| 135 | } __attribute__((packed)); |
| 136 | |
| 137 | struct mspro_block_data { |
| 138 | struct memstick_dev *card; |
| 139 | unsigned int usage_count; |
Alex Dubov | ead7077 | 2008-03-19 17:01:06 -0700 | [diff] [blame] | 140 | unsigned int caps; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 141 | struct gendisk *disk; |
| 142 | struct request_queue *queue; |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 143 | struct request *block_req; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 144 | spinlock_t q_lock; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 145 | |
| 146 | unsigned short page_size; |
| 147 | unsigned short cylinders; |
| 148 | unsigned short heads; |
| 149 | unsigned short sectors_per_track; |
| 150 | |
| 151 | unsigned char system; |
| 152 | unsigned char read_only:1, |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 153 | eject:1, |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 154 | has_request:1, |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 155 | data_dir:1, |
| 156 | active:1; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 157 | unsigned char transfer_cmd; |
| 158 | |
| 159 | int (*mrq_handler)(struct memstick_dev *card, |
| 160 | struct memstick_request **mrq); |
| 161 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 162 | |
| 163 | /* Default request setup function for data access method preferred by |
| 164 | * this host instance. |
| 165 | */ |
| 166 | void (*setup_transfer)(struct memstick_dev *card, |
| 167 | u64 offset, size_t length); |
| 168 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 169 | struct attribute_group attr_group; |
| 170 | |
| 171 | struct scatterlist req_sg[MSPRO_BLOCK_MAX_SEGS]; |
| 172 | unsigned int seg_count; |
| 173 | unsigned int current_seg; |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 174 | unsigned int current_page; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 175 | }; |
| 176 | |
| 177 | static DEFINE_IDR(mspro_block_disk_idr); |
| 178 | static DEFINE_MUTEX(mspro_block_disk_lock); |
| 179 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 180 | static int mspro_block_complete_req(struct memstick_dev *card, int error); |
| 181 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 182 | /*** Block device ***/ |
| 183 | |
Al Viro | 5d9a54b | 2008-03-02 10:31:38 -0500 | [diff] [blame] | 184 | static int mspro_block_bd_open(struct block_device *bdev, fmode_t mode) |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 185 | { |
Al Viro | 5d9a54b | 2008-03-02 10:31:38 -0500 | [diff] [blame] | 186 | struct gendisk *disk = bdev->bd_disk; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 187 | struct mspro_block_data *msb = disk->private_data; |
| 188 | int rc = -ENXIO; |
| 189 | |
| 190 | mutex_lock(&mspro_block_disk_lock); |
| 191 | |
| 192 | if (msb && msb->card) { |
| 193 | msb->usage_count++; |
Al Viro | 5d9a54b | 2008-03-02 10:31:38 -0500 | [diff] [blame] | 194 | if ((mode & FMODE_WRITE) && msb->read_only) |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 195 | rc = -EROFS; |
| 196 | else |
| 197 | rc = 0; |
| 198 | } |
| 199 | |
| 200 | mutex_unlock(&mspro_block_disk_lock); |
| 201 | |
| 202 | return rc; |
| 203 | } |
| 204 | |
| 205 | |
| 206 | static int mspro_block_disk_release(struct gendisk *disk) |
| 207 | { |
| 208 | struct mspro_block_data *msb = disk->private_data; |
Tejun Heo | f331c02 | 2008-09-03 09:01:48 +0200 | [diff] [blame] | 209 | int disk_id = MINOR(disk_devt(disk)) >> MSPRO_BLOCK_PART_SHIFT; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 210 | |
| 211 | mutex_lock(&mspro_block_disk_lock); |
| 212 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 213 | if (msb) { |
| 214 | if (msb->usage_count) |
| 215 | msb->usage_count--; |
| 216 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 217 | if (!msb->usage_count) { |
| 218 | kfree(msb); |
| 219 | disk->private_data = NULL; |
| 220 | idr_remove(&mspro_block_disk_idr, disk_id); |
| 221 | put_disk(disk); |
| 222 | } |
| 223 | } |
| 224 | |
| 225 | mutex_unlock(&mspro_block_disk_lock); |
| 226 | |
| 227 | return 0; |
| 228 | } |
| 229 | |
Al Viro | 5d9a54b | 2008-03-02 10:31:38 -0500 | [diff] [blame] | 230 | static int mspro_block_bd_release(struct gendisk *disk, fmode_t mode) |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 231 | { |
Alex Dubov | edb50b3 | 2011-01-12 17:01:04 -0800 | [diff] [blame] | 232 | return mspro_block_disk_release(disk); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 233 | } |
| 234 | |
| 235 | static int mspro_block_bd_getgeo(struct block_device *bdev, |
| 236 | struct hd_geometry *geo) |
| 237 | { |
| 238 | struct mspro_block_data *msb = bdev->bd_disk->private_data; |
| 239 | |
| 240 | geo->heads = msb->heads; |
| 241 | geo->sectors = msb->sectors_per_track; |
| 242 | geo->cylinders = msb->cylinders; |
| 243 | |
| 244 | return 0; |
| 245 | } |
| 246 | |
Alexey Dobriyan | 83d5cde | 2009-09-21 17:01:13 -0700 | [diff] [blame] | 247 | static const struct block_device_operations ms_block_bdops = { |
Al Viro | 5d9a54b | 2008-03-02 10:31:38 -0500 | [diff] [blame] | 248 | .open = mspro_block_bd_open, |
| 249 | .release = mspro_block_bd_release, |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 250 | .getgeo = mspro_block_bd_getgeo, |
| 251 | .owner = THIS_MODULE |
| 252 | }; |
| 253 | |
| 254 | /*** Information ***/ |
| 255 | |
| 256 | static struct mspro_sys_attr *mspro_from_sysfs_attr(struct attribute *attr) |
| 257 | { |
| 258 | struct device_attribute *dev_attr |
| 259 | = container_of(attr, struct device_attribute, attr); |
| 260 | return container_of(dev_attr, struct mspro_sys_attr, dev_attr); |
| 261 | } |
| 262 | |
| 263 | static const char *mspro_block_attr_name(unsigned char tag) |
| 264 | { |
| 265 | switch (tag) { |
| 266 | case MSPRO_BLOCK_ID_SYSINFO: |
| 267 | return "attr_sysinfo"; |
| 268 | case MSPRO_BLOCK_ID_MODELNAME: |
| 269 | return "attr_modelname"; |
| 270 | case MSPRO_BLOCK_ID_MBR: |
| 271 | return "attr_mbr"; |
| 272 | case MSPRO_BLOCK_ID_PBR16: |
| 273 | return "attr_pbr16"; |
| 274 | case MSPRO_BLOCK_ID_PBR32: |
| 275 | return "attr_pbr32"; |
| 276 | case MSPRO_BLOCK_ID_SPECFILEVALUES1: |
| 277 | return "attr_specfilevalues1"; |
| 278 | case MSPRO_BLOCK_ID_SPECFILEVALUES2: |
| 279 | return "attr_specfilevalues2"; |
| 280 | case MSPRO_BLOCK_ID_DEVINFO: |
| 281 | return "attr_devinfo"; |
| 282 | default: |
| 283 | return NULL; |
| 284 | }; |
| 285 | } |
| 286 | |
| 287 | typedef ssize_t (*sysfs_show_t)(struct device *dev, |
| 288 | struct device_attribute *attr, |
| 289 | char *buffer); |
| 290 | |
| 291 | static ssize_t mspro_block_attr_show_default(struct device *dev, |
| 292 | struct device_attribute *attr, |
| 293 | char *buffer) |
| 294 | { |
| 295 | struct mspro_sys_attr *s_attr = container_of(attr, |
| 296 | struct mspro_sys_attr, |
| 297 | dev_attr); |
| 298 | |
| 299 | ssize_t cnt, rc = 0; |
| 300 | |
| 301 | for (cnt = 0; cnt < s_attr->size; cnt++) { |
| 302 | if (cnt && !(cnt % 16)) { |
| 303 | if (PAGE_SIZE - rc) |
| 304 | buffer[rc++] = '\n'; |
| 305 | } |
| 306 | |
| 307 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "%02x ", |
| 308 | ((unsigned char *)s_attr->data)[cnt]); |
| 309 | } |
| 310 | return rc; |
| 311 | } |
| 312 | |
| 313 | static ssize_t mspro_block_attr_show_sysinfo(struct device *dev, |
| 314 | struct device_attribute *attr, |
| 315 | char *buffer) |
| 316 | { |
| 317 | struct mspro_sys_attr *x_attr = container_of(attr, |
| 318 | struct mspro_sys_attr, |
| 319 | dev_attr); |
| 320 | struct mspro_sys_info *x_sys = x_attr->data; |
| 321 | ssize_t rc = 0; |
Alex Dubov | 251cc9b | 2008-03-10 11:43:42 -0700 | [diff] [blame] | 322 | int date_tz = 0, date_tz_f = 0; |
| 323 | |
| 324 | if (x_sys->assembly_date[0] > 0x80U) { |
| 325 | date_tz = (~x_sys->assembly_date[0]) + 1; |
| 326 | date_tz_f = date_tz & 3; |
| 327 | date_tz >>= 2; |
| 328 | date_tz = -date_tz; |
| 329 | date_tz_f *= 15; |
| 330 | } else if (x_sys->assembly_date[0] < 0x80U) { |
| 331 | date_tz = x_sys->assembly_date[0]; |
| 332 | date_tz_f = date_tz & 3; |
| 333 | date_tz >>= 2; |
| 334 | date_tz_f *= 15; |
| 335 | } |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 336 | |
| 337 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "class: %x\n", |
| 338 | x_sys->class); |
| 339 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "block size: %x\n", |
| 340 | be16_to_cpu(x_sys->block_size)); |
| 341 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "block count: %x\n", |
| 342 | be16_to_cpu(x_sys->block_count)); |
| 343 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "user block count: %x\n", |
| 344 | be16_to_cpu(x_sys->user_block_count)); |
| 345 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "page size: %x\n", |
| 346 | be16_to_cpu(x_sys->page_size)); |
| 347 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "assembly date: " |
Alex Dubov | 251cc9b | 2008-03-10 11:43:42 -0700 | [diff] [blame] | 348 | "GMT%+d:%d %04u-%02u-%02u %02u:%02u:%02u\n", |
| 349 | date_tz, date_tz_f, |
Harvey Harrison | 69347a2 | 2009-01-09 16:40:56 -0800 | [diff] [blame] | 350 | be16_to_cpup((__be16 *)&x_sys->assembly_date[1]), |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 351 | x_sys->assembly_date[3], x_sys->assembly_date[4], |
| 352 | x_sys->assembly_date[5], x_sys->assembly_date[6], |
| 353 | x_sys->assembly_date[7]); |
| 354 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "serial number: %x\n", |
| 355 | be32_to_cpu(x_sys->serial_number)); |
| 356 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, |
| 357 | "assembly maker code: %x\n", |
| 358 | x_sys->assembly_maker_code); |
| 359 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "assembly model code: " |
| 360 | "%02x%02x%02x\n", x_sys->assembly_model_code[0], |
| 361 | x_sys->assembly_model_code[1], |
| 362 | x_sys->assembly_model_code[2]); |
| 363 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "memory maker code: %x\n", |
| 364 | be16_to_cpu(x_sys->memory_maker_code)); |
| 365 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "memory model code: %x\n", |
| 366 | be16_to_cpu(x_sys->memory_model_code)); |
| 367 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "vcc: %x\n", |
| 368 | x_sys->vcc); |
| 369 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "vpp: %x\n", |
| 370 | x_sys->vpp); |
| 371 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "controller number: %x\n", |
| 372 | be16_to_cpu(x_sys->controller_number)); |
| 373 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, |
| 374 | "controller function: %x\n", |
| 375 | be16_to_cpu(x_sys->controller_function)); |
| 376 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sector: %x\n", |
| 377 | be16_to_cpu(x_sys->start_sector)); |
| 378 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "unit size: %x\n", |
| 379 | be16_to_cpu(x_sys->unit_size)); |
| 380 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "sub class: %x\n", |
| 381 | x_sys->ms_sub_class); |
| 382 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "interface type: %x\n", |
| 383 | x_sys->interface_type); |
| 384 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "controller code: %x\n", |
| 385 | be16_to_cpu(x_sys->controller_code)); |
| 386 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "format type: %x\n", |
| 387 | x_sys->format_type); |
| 388 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "device type: %x\n", |
| 389 | x_sys->device_type); |
| 390 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "mspro id: %s\n", |
| 391 | x_sys->mspro_id); |
| 392 | return rc; |
| 393 | } |
| 394 | |
| 395 | static ssize_t mspro_block_attr_show_modelname(struct device *dev, |
| 396 | struct device_attribute *attr, |
| 397 | char *buffer) |
| 398 | { |
| 399 | struct mspro_sys_attr *s_attr = container_of(attr, |
| 400 | struct mspro_sys_attr, |
| 401 | dev_attr); |
| 402 | |
| 403 | return scnprintf(buffer, PAGE_SIZE, "%s", (char *)s_attr->data); |
| 404 | } |
| 405 | |
| 406 | static ssize_t mspro_block_attr_show_mbr(struct device *dev, |
| 407 | struct device_attribute *attr, |
| 408 | char *buffer) |
| 409 | { |
| 410 | struct mspro_sys_attr *x_attr = container_of(attr, |
| 411 | struct mspro_sys_attr, |
| 412 | dev_attr); |
| 413 | struct mspro_mbr *x_mbr = x_attr->data; |
| 414 | ssize_t rc = 0; |
| 415 | |
| 416 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "boot partition: %x\n", |
| 417 | x_mbr->boot_partition); |
| 418 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start head: %x\n", |
| 419 | x_mbr->start_head); |
| 420 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sector: %x\n", |
| 421 | x_mbr->start_sector); |
| 422 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start cylinder: %x\n", |
| 423 | x_mbr->start_cylinder); |
| 424 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "partition type: %x\n", |
| 425 | x_mbr->partition_type); |
| 426 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end head: %x\n", |
| 427 | x_mbr->end_head); |
| 428 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end sector: %x\n", |
| 429 | x_mbr->end_sector); |
| 430 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end cylinder: %x\n", |
| 431 | x_mbr->end_cylinder); |
| 432 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sectors: %x\n", |
| 433 | x_mbr->start_sectors); |
| 434 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, |
| 435 | "sectors per partition: %x\n", |
| 436 | x_mbr->sectors_per_partition); |
| 437 | return rc; |
| 438 | } |
| 439 | |
Alex Dubov | efb2742 | 2008-03-10 11:43:41 -0700 | [diff] [blame] | 440 | static ssize_t mspro_block_attr_show_specfile(struct device *dev, |
| 441 | struct device_attribute *attr, |
| 442 | char *buffer) |
| 443 | { |
| 444 | struct mspro_sys_attr *x_attr = container_of(attr, |
| 445 | struct mspro_sys_attr, |
| 446 | dev_attr); |
| 447 | struct mspro_specfile *x_spfile = x_attr->data; |
| 448 | char name[9], ext[4]; |
| 449 | ssize_t rc = 0; |
| 450 | |
| 451 | memcpy(name, x_spfile->name, 8); |
| 452 | name[8] = 0; |
| 453 | memcpy(ext, x_spfile->ext, 3); |
| 454 | ext[3] = 0; |
| 455 | |
| 456 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "name: %s\n", name); |
| 457 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "ext: %s\n", ext); |
| 458 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "attribute: %x\n", |
| 459 | x_spfile->attr); |
| 460 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "time: %d:%d:%d\n", |
| 461 | x_spfile->time >> 11, |
| 462 | (x_spfile->time >> 5) & 0x3f, |
| 463 | (x_spfile->time & 0x1f) * 2); |
| 464 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "date: %d-%d-%d\n", |
| 465 | (x_spfile->date >> 9) + 1980, |
| 466 | (x_spfile->date >> 5) & 0xf, |
| 467 | x_spfile->date & 0x1f); |
| 468 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start cluster: %x\n", |
| 469 | x_spfile->cluster); |
| 470 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "size: %x\n", |
| 471 | x_spfile->size); |
| 472 | return rc; |
| 473 | } |
| 474 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 475 | static ssize_t mspro_block_attr_show_devinfo(struct device *dev, |
| 476 | struct device_attribute *attr, |
| 477 | char *buffer) |
| 478 | { |
| 479 | struct mspro_sys_attr *x_attr = container_of(attr, |
| 480 | struct mspro_sys_attr, |
| 481 | dev_attr); |
| 482 | struct mspro_devinfo *x_devinfo = x_attr->data; |
| 483 | ssize_t rc = 0; |
| 484 | |
| 485 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "cylinders: %x\n", |
| 486 | be16_to_cpu(x_devinfo->cylinders)); |
| 487 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "heads: %x\n", |
| 488 | be16_to_cpu(x_devinfo->heads)); |
| 489 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "bytes per track: %x\n", |
| 490 | be16_to_cpu(x_devinfo->bytes_per_track)); |
| 491 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "bytes per sector: %x\n", |
| 492 | be16_to_cpu(x_devinfo->bytes_per_sector)); |
| 493 | rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "sectors per track: %x\n", |
| 494 | be16_to_cpu(x_devinfo->sectors_per_track)); |
| 495 | return rc; |
| 496 | } |
| 497 | |
| 498 | static sysfs_show_t mspro_block_attr_show(unsigned char tag) |
| 499 | { |
| 500 | switch (tag) { |
| 501 | case MSPRO_BLOCK_ID_SYSINFO: |
| 502 | return mspro_block_attr_show_sysinfo; |
| 503 | case MSPRO_BLOCK_ID_MODELNAME: |
| 504 | return mspro_block_attr_show_modelname; |
| 505 | case MSPRO_BLOCK_ID_MBR: |
| 506 | return mspro_block_attr_show_mbr; |
Alex Dubov | efb2742 | 2008-03-10 11:43:41 -0700 | [diff] [blame] | 507 | case MSPRO_BLOCK_ID_SPECFILEVALUES1: |
| 508 | case MSPRO_BLOCK_ID_SPECFILEVALUES2: |
| 509 | return mspro_block_attr_show_specfile; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 510 | case MSPRO_BLOCK_ID_DEVINFO: |
| 511 | return mspro_block_attr_show_devinfo; |
| 512 | default: |
| 513 | return mspro_block_attr_show_default; |
| 514 | } |
| 515 | } |
| 516 | |
| 517 | /*** Protocol handlers ***/ |
| 518 | |
| 519 | /* |
| 520 | * Functions prefixed with "h_" are protocol callbacks. They can be called from |
| 521 | * interrupt context. Return value of 0 means that request processing is still |
| 522 | * ongoing, while special error value of -EAGAIN means that current request is |
| 523 | * finished (and request processor should come back some time later). |
| 524 | */ |
| 525 | |
| 526 | static int h_mspro_block_req_init(struct memstick_dev *card, |
| 527 | struct memstick_request **mrq) |
| 528 | { |
| 529 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 530 | |
| 531 | *mrq = &card->current_mrq; |
| 532 | card->next_request = msb->mrq_handler; |
| 533 | return 0; |
| 534 | } |
| 535 | |
| 536 | static int h_mspro_block_default(struct memstick_dev *card, |
| 537 | struct memstick_request **mrq) |
| 538 | { |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 539 | return mspro_block_complete_req(card, (*mrq)->error); |
| 540 | } |
| 541 | |
| 542 | static int h_mspro_block_default_bad(struct memstick_dev *card, |
| 543 | struct memstick_request **mrq) |
| 544 | { |
| 545 | return -ENXIO; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 546 | } |
| 547 | |
| 548 | static int h_mspro_block_get_ro(struct memstick_dev *card, |
| 549 | struct memstick_request **mrq) |
| 550 | { |
| 551 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 552 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 553 | if (!(*mrq)->error) { |
| 554 | if ((*mrq)->data[offsetof(struct ms_status_register, status0)] |
| 555 | & MEMSTICK_STATUS0_WP) |
| 556 | msb->read_only = 1; |
| 557 | else |
| 558 | msb->read_only = 0; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 559 | } |
| 560 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 561 | return mspro_block_complete_req(card, (*mrq)->error); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 562 | } |
| 563 | |
| 564 | static int h_mspro_block_wait_for_ced(struct memstick_dev *card, |
| 565 | struct memstick_request **mrq) |
| 566 | { |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 567 | dev_dbg(&card->dev, "wait for ced: value %x\n", (*mrq)->data[0]); |
| 568 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 569 | if (!(*mrq)->error) { |
| 570 | if ((*mrq)->data[0] & (MEMSTICK_INT_CMDNAK | MEMSTICK_INT_ERR)) |
| 571 | (*mrq)->error = -EFAULT; |
| 572 | else if (!((*mrq)->data[0] & MEMSTICK_INT_CED)) |
| 573 | return 0; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 574 | } |
| 575 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 576 | return mspro_block_complete_req(card, (*mrq)->error); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 577 | } |
| 578 | |
| 579 | static int h_mspro_block_transfer_data(struct memstick_dev *card, |
| 580 | struct memstick_request **mrq) |
| 581 | { |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 582 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 583 | unsigned char t_val = 0; |
| 584 | struct scatterlist t_sg = { 0 }; |
| 585 | size_t t_offset; |
| 586 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 587 | if ((*mrq)->error) |
| 588 | return mspro_block_complete_req(card, (*mrq)->error); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 589 | |
| 590 | switch ((*mrq)->tpc) { |
| 591 | case MS_TPC_WRITE_REG: |
| 592 | memstick_init_req(*mrq, MS_TPC_SET_CMD, &msb->transfer_cmd, 1); |
Alex Dubov | ead7077 | 2008-03-19 17:01:06 -0700 | [diff] [blame] | 593 | (*mrq)->need_card_int = 1; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 594 | return 0; |
| 595 | case MS_TPC_SET_CMD: |
| 596 | t_val = (*mrq)->int_reg; |
| 597 | memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1); |
Alex Dubov | ead7077 | 2008-03-19 17:01:06 -0700 | [diff] [blame] | 598 | if (msb->caps & MEMSTICK_CAP_AUTO_GET_INT) |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 599 | goto has_int_reg; |
| 600 | return 0; |
| 601 | case MS_TPC_GET_INT: |
| 602 | t_val = (*mrq)->data[0]; |
| 603 | has_int_reg: |
| 604 | if (t_val & (MEMSTICK_INT_CMDNAK | MEMSTICK_INT_ERR)) { |
| 605 | t_val = MSPRO_CMD_STOP; |
| 606 | memstick_init_req(*mrq, MS_TPC_SET_CMD, &t_val, 1); |
| 607 | card->next_request = h_mspro_block_default; |
| 608 | return 0; |
| 609 | } |
| 610 | |
| 611 | if (msb->current_page |
| 612 | == (msb->req_sg[msb->current_seg].length |
| 613 | / msb->page_size)) { |
| 614 | msb->current_page = 0; |
| 615 | msb->current_seg++; |
| 616 | |
| 617 | if (msb->current_seg == msb->seg_count) { |
| 618 | if (t_val & MEMSTICK_INT_CED) { |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 619 | return mspro_block_complete_req(card, |
| 620 | 0); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 621 | } else { |
| 622 | card->next_request |
| 623 | = h_mspro_block_wait_for_ced; |
| 624 | memstick_init_req(*mrq, MS_TPC_GET_INT, |
| 625 | NULL, 1); |
| 626 | return 0; |
| 627 | } |
| 628 | } |
| 629 | } |
| 630 | |
| 631 | if (!(t_val & MEMSTICK_INT_BREQ)) { |
| 632 | memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1); |
| 633 | return 0; |
| 634 | } |
| 635 | |
| 636 | t_offset = msb->req_sg[msb->current_seg].offset; |
| 637 | t_offset += msb->current_page * msb->page_size; |
| 638 | |
| 639 | sg_set_page(&t_sg, |
| 640 | nth_page(sg_page(&(msb->req_sg[msb->current_seg])), |
| 641 | t_offset >> PAGE_SHIFT), |
| 642 | msb->page_size, offset_in_page(t_offset)); |
| 643 | |
| 644 | memstick_init_req_sg(*mrq, msb->data_dir == READ |
| 645 | ? MS_TPC_READ_LONG_DATA |
| 646 | : MS_TPC_WRITE_LONG_DATA, |
| 647 | &t_sg); |
Alex Dubov | ead7077 | 2008-03-19 17:01:06 -0700 | [diff] [blame] | 648 | (*mrq)->need_card_int = 1; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 649 | return 0; |
| 650 | case MS_TPC_READ_LONG_DATA: |
| 651 | case MS_TPC_WRITE_LONG_DATA: |
| 652 | msb->current_page++; |
Alex Dubov | ead7077 | 2008-03-19 17:01:06 -0700 | [diff] [blame] | 653 | if (msb->caps & MEMSTICK_CAP_AUTO_GET_INT) { |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 654 | t_val = (*mrq)->int_reg; |
| 655 | goto has_int_reg; |
| 656 | } else { |
| 657 | memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1); |
| 658 | return 0; |
| 659 | } |
| 660 | |
| 661 | default: |
| 662 | BUG(); |
| 663 | } |
| 664 | } |
| 665 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 666 | /*** Transfer setup functions for different access methods. ***/ |
| 667 | |
| 668 | /** Setup data transfer request for SET_CMD TPC with arguments in card |
| 669 | * registers. |
| 670 | * |
| 671 | * @card Current media instance |
| 672 | * @offset Target data offset in bytes |
| 673 | * @length Required transfer length in bytes. |
| 674 | */ |
| 675 | static void h_mspro_block_setup_cmd(struct memstick_dev *card, u64 offset, |
| 676 | size_t length) |
| 677 | { |
| 678 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 679 | struct mspro_param_register param = { |
| 680 | .system = msb->system, |
| 681 | .data_count = cpu_to_be16((uint16_t)(length / msb->page_size)), |
| 682 | /* ISO C90 warning precludes direct initialization for now. */ |
| 683 | .data_address = 0, |
| 684 | .tpc_param = 0 |
| 685 | }; |
| 686 | |
| 687 | do_div(offset, msb->page_size); |
| 688 | param.data_address = cpu_to_be32((uint32_t)offset); |
| 689 | |
| 690 | card->next_request = h_mspro_block_req_init; |
| 691 | msb->mrq_handler = h_mspro_block_transfer_data; |
| 692 | memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, |
| 693 | ¶m, sizeof(param)); |
| 694 | } |
| 695 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 696 | /*** Data transfer ***/ |
| 697 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 698 | static int mspro_block_issue_req(struct memstick_dev *card, int chunk) |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 699 | { |
| 700 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 701 | u64 t_off; |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 702 | unsigned int count; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 703 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 704 | try_again: |
| 705 | while (chunk) { |
| 706 | msb->current_page = 0; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 707 | msb->current_seg = 0; |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 708 | msb->seg_count = blk_rq_map_sg(msb->block_req->q, |
| 709 | msb->block_req, |
| 710 | msb->req_sg); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 711 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 712 | if (!msb->seg_count) { |
Tejun Heo | 296b2f6 | 2009-05-08 11:54:15 +0900 | [diff] [blame] | 713 | chunk = __blk_end_request_cur(msb->block_req, -ENOMEM); |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 714 | continue; |
| 715 | } |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 716 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 717 | t_off = blk_rq_pos(msb->block_req); |
| 718 | t_off <<= 9; |
Tejun Heo | 1011c1b | 2009-05-07 22:24:45 +0900 | [diff] [blame] | 719 | count = blk_rq_bytes(msb->block_req); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 720 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 721 | msb->setup_transfer(card, t_off, count); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 722 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 723 | msb->data_dir = rq_data_dir(msb->block_req); |
| 724 | msb->transfer_cmd = msb->data_dir == READ |
| 725 | ? MSPRO_CMD_READ_DATA |
| 726 | : MSPRO_CMD_WRITE_DATA; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 727 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 728 | memstick_new_req(card->host); |
| 729 | return 0; |
| 730 | } |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 731 | |
Tejun Heo | 9934c8c | 2009-05-08 11:54:16 +0900 | [diff] [blame] | 732 | dev_dbg(&card->dev, "blk_fetch\n"); |
| 733 | msb->block_req = blk_fetch_request(msb->queue); |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 734 | if (!msb->block_req) { |
| 735 | dev_dbg(&card->dev, "issue end\n"); |
| 736 | return -EAGAIN; |
| 737 | } |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 738 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 739 | dev_dbg(&card->dev, "trying again\n"); |
| 740 | chunk = 1; |
| 741 | goto try_again; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 742 | } |
| 743 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 744 | static int mspro_block_complete_req(struct memstick_dev *card, int error) |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 745 | { |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 746 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 747 | int chunk, cnt; |
| 748 | unsigned int t_len = 0; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 749 | unsigned long flags; |
| 750 | |
| 751 | spin_lock_irqsave(&msb->q_lock, flags); |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 752 | dev_dbg(&card->dev, "complete %d, %d\n", msb->has_request ? 1 : 0, |
| 753 | error); |
| 754 | |
| 755 | if (msb->has_request) { |
| 756 | /* Nothing to do - not really an error */ |
| 757 | if (error == -EAGAIN) |
| 758 | error = 0; |
| 759 | |
| 760 | if (error || (card->current_mrq.tpc == MSPRO_CMD_STOP)) { |
| 761 | if (msb->data_dir == READ) { |
| 762 | for (cnt = 0; cnt < msb->current_seg; cnt++) |
| 763 | t_len += msb->req_sg[cnt].length |
| 764 | / msb->page_size; |
| 765 | |
| 766 | if (msb->current_page) |
| 767 | t_len += msb->current_page - 1; |
| 768 | |
| 769 | t_len *= msb->page_size; |
| 770 | } |
| 771 | } else |
Tejun Heo | 1011c1b | 2009-05-07 22:24:45 +0900 | [diff] [blame] | 772 | t_len = blk_rq_bytes(msb->block_req); |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 773 | |
| 774 | dev_dbg(&card->dev, "transferred %x (%d)\n", t_len, error); |
| 775 | |
| 776 | if (error && !t_len) |
| 777 | t_len = blk_rq_cur_bytes(msb->block_req); |
| 778 | |
| 779 | chunk = __blk_end_request(msb->block_req, error, t_len); |
| 780 | |
| 781 | error = mspro_block_issue_req(card, chunk); |
| 782 | |
| 783 | if (!error) |
| 784 | goto out; |
| 785 | else |
| 786 | msb->has_request = 0; |
| 787 | } else { |
| 788 | if (!error) |
| 789 | error = -EAGAIN; |
| 790 | } |
| 791 | |
| 792 | card->next_request = h_mspro_block_default_bad; |
| 793 | complete_all(&card->mrq_complete); |
| 794 | out: |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 795 | spin_unlock_irqrestore(&msb->q_lock, flags); |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 796 | return error; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 797 | } |
| 798 | |
Alex Dubov | 17017d8 | 2008-07-25 19:45:01 -0700 | [diff] [blame] | 799 | static void mspro_block_stop(struct memstick_dev *card) |
| 800 | { |
| 801 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 802 | int rc = 0; |
| 803 | unsigned long flags; |
| 804 | |
| 805 | while (1) { |
| 806 | spin_lock_irqsave(&msb->q_lock, flags); |
| 807 | if (!msb->has_request) { |
| 808 | blk_stop_queue(msb->queue); |
| 809 | rc = 1; |
| 810 | } |
| 811 | spin_unlock_irqrestore(&msb->q_lock, flags); |
| 812 | |
| 813 | if (rc) |
| 814 | break; |
| 815 | |
| 816 | wait_for_completion(&card->mrq_complete); |
| 817 | } |
| 818 | } |
| 819 | |
| 820 | static void mspro_block_start(struct memstick_dev *card) |
| 821 | { |
| 822 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 823 | unsigned long flags; |
| 824 | |
| 825 | spin_lock_irqsave(&msb->q_lock, flags); |
| 826 | blk_start_queue(msb->queue); |
| 827 | spin_unlock_irqrestore(&msb->q_lock, flags); |
| 828 | } |
| 829 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 830 | static int mspro_block_prepare_req(struct request_queue *q, struct request *req) |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 831 | { |
Christoph Hellwig | 33659eb | 2010-08-07 18:17:56 +0200 | [diff] [blame] | 832 | if (req->cmd_type != REQ_TYPE_FS && |
| 833 | req->cmd_type != REQ_TYPE_BLOCK_PC) { |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 834 | blk_dump_rq_flags(req, "MSPro unsupported request"); |
| 835 | return BLKPREP_KILL; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 836 | } |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 837 | |
| 838 | req->cmd_flags |= REQ_DONTPREP; |
| 839 | |
| 840 | return BLKPREP_OK; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 841 | } |
| 842 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 843 | static void mspro_block_submit_req(struct request_queue *q) |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 844 | { |
| 845 | struct memstick_dev *card = q->queuedata; |
| 846 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 847 | struct request *req = NULL; |
| 848 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 849 | if (msb->has_request) |
| 850 | return; |
| 851 | |
| 852 | if (msb->eject) { |
Tejun Heo | 9934c8c | 2009-05-08 11:54:16 +0900 | [diff] [blame] | 853 | while ((req = blk_fetch_request(q)) != NULL) |
Tejun Heo | 40cbbb7 | 2009-04-23 11:05:19 +0900 | [diff] [blame] | 854 | __blk_end_request_all(req, -ENODEV); |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 855 | |
| 856 | return; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 857 | } |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 858 | |
| 859 | msb->has_request = 1; |
| 860 | if (mspro_block_issue_req(card, 0)) |
| 861 | msb->has_request = 0; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 862 | } |
| 863 | |
| 864 | /*** Initialization ***/ |
| 865 | |
| 866 | static int mspro_block_wait_for_ced(struct memstick_dev *card) |
| 867 | { |
| 868 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 869 | |
| 870 | card->next_request = h_mspro_block_req_init; |
| 871 | msb->mrq_handler = h_mspro_block_wait_for_ced; |
| 872 | memstick_init_req(&card->current_mrq, MS_TPC_GET_INT, NULL, 1); |
| 873 | memstick_new_req(card->host); |
| 874 | wait_for_completion(&card->mrq_complete); |
| 875 | return card->current_mrq.error; |
| 876 | } |
| 877 | |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 878 | static int mspro_block_set_interface(struct memstick_dev *card, |
| 879 | unsigned char sys_reg) |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 880 | { |
| 881 | struct memstick_host *host = card->host; |
| 882 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 883 | struct mspro_param_register param = { |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 884 | .system = sys_reg, |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 885 | .data_count = 0, |
| 886 | .data_address = 0, |
Alex Dubov | e1f1999 | 2008-03-10 11:43:37 -0700 | [diff] [blame] | 887 | .tpc_param = 0 |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 888 | }; |
| 889 | |
| 890 | card->next_request = h_mspro_block_req_init; |
| 891 | msb->mrq_handler = h_mspro_block_default; |
| 892 | memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, ¶m, |
| 893 | sizeof(param)); |
| 894 | memstick_new_req(host); |
| 895 | wait_for_completion(&card->mrq_complete); |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 896 | return card->current_mrq.error; |
| 897 | } |
| 898 | |
| 899 | static int mspro_block_switch_interface(struct memstick_dev *card) |
| 900 | { |
| 901 | struct memstick_host *host = card->host; |
| 902 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 903 | int rc = 0; |
| 904 | |
Alex Dubov | 8e82f8c | 2008-09-13 02:33:26 -0700 | [diff] [blame] | 905 | try_again: |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 906 | if (msb->caps & MEMSTICK_CAP_PAR4) |
| 907 | rc = mspro_block_set_interface(card, MEMSTICK_SYS_PAR4); |
| 908 | else |
| 909 | return 0; |
| 910 | |
| 911 | if (rc) { |
| 912 | printk(KERN_WARNING |
| 913 | "%s: could not switch to 4-bit mode, error %d\n", |
Kay Sievers | 0252c3b | 2009-01-06 10:44:38 -0800 | [diff] [blame] | 914 | dev_name(&card->dev), rc); |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 915 | return 0; |
| 916 | } |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 917 | |
Alex Dubov | e1f1999 | 2008-03-10 11:43:37 -0700 | [diff] [blame] | 918 | msb->system = MEMSTICK_SYS_PAR4; |
| 919 | host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_PAR4); |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 920 | printk(KERN_INFO "%s: switching to 4-bit parallel mode\n", |
Kay Sievers | 0252c3b | 2009-01-06 10:44:38 -0800 | [diff] [blame] | 921 | dev_name(&card->dev)); |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 922 | |
| 923 | if (msb->caps & MEMSTICK_CAP_PAR8) { |
| 924 | rc = mspro_block_set_interface(card, MEMSTICK_SYS_PAR8); |
| 925 | |
| 926 | if (!rc) { |
| 927 | msb->system = MEMSTICK_SYS_PAR8; |
| 928 | host->set_param(host, MEMSTICK_INTERFACE, |
| 929 | MEMSTICK_PAR8); |
| 930 | printk(KERN_INFO |
| 931 | "%s: switching to 8-bit parallel mode\n", |
Kay Sievers | 0252c3b | 2009-01-06 10:44:38 -0800 | [diff] [blame] | 932 | dev_name(&card->dev)); |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 933 | } else |
| 934 | printk(KERN_WARNING |
| 935 | "%s: could not switch to 8-bit mode, error %d\n", |
Kay Sievers | 0252c3b | 2009-01-06 10:44:38 -0800 | [diff] [blame] | 936 | dev_name(&card->dev), rc); |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 937 | } |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 938 | |
| 939 | card->next_request = h_mspro_block_req_init; |
| 940 | msb->mrq_handler = h_mspro_block_default; |
| 941 | memstick_init_req(&card->current_mrq, MS_TPC_GET_INT, NULL, 1); |
| 942 | memstick_new_req(card->host); |
| 943 | wait_for_completion(&card->mrq_complete); |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 944 | rc = card->current_mrq.error; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 945 | |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 946 | if (rc) { |
| 947 | printk(KERN_WARNING |
| 948 | "%s: interface error, trying to fall back to serial\n", |
Kay Sievers | 0252c3b | 2009-01-06 10:44:38 -0800 | [diff] [blame] | 949 | dev_name(&card->dev)); |
Alex Dubov | 5936725 | 2008-03-10 11:43:42 -0700 | [diff] [blame] | 950 | msb->system = MEMSTICK_SYS_SERIAL; |
| 951 | host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_OFF); |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 952 | msleep(10); |
Alex Dubov | 5936725 | 2008-03-10 11:43:42 -0700 | [diff] [blame] | 953 | host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_ON); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 954 | host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_SERIAL); |
Alex Dubov | 5936725 | 2008-03-10 11:43:42 -0700 | [diff] [blame] | 955 | |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 956 | rc = memstick_set_rw_addr(card); |
| 957 | if (!rc) |
| 958 | rc = mspro_block_set_interface(card, msb->system); |
Alex Dubov | 8e82f8c | 2008-09-13 02:33:26 -0700 | [diff] [blame] | 959 | |
| 960 | if (!rc) { |
| 961 | msleep(150); |
| 962 | rc = mspro_block_wait_for_ced(card); |
| 963 | if (rc) |
| 964 | return rc; |
| 965 | |
| 966 | if (msb->caps & MEMSTICK_CAP_PAR8) { |
| 967 | msb->caps &= ~MEMSTICK_CAP_PAR8; |
| 968 | goto try_again; |
| 969 | } |
| 970 | } |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 971 | } |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 972 | return rc; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 973 | } |
| 974 | |
| 975 | /* Memory allocated for attributes by this function should be freed by |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame^] | 976 | * mspro_block_data_clear, no matter if the initialization process succeeded |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 977 | * or failed. |
| 978 | */ |
| 979 | static int mspro_block_read_attributes(struct memstick_dev *card) |
| 980 | { |
| 981 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 982 | struct mspro_attribute *attr = NULL; |
| 983 | struct mspro_sys_attr *s_attr = NULL; |
| 984 | unsigned char *buffer = NULL; |
| 985 | int cnt, rc, attr_count; |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 986 | /* While normally physical device offsets, represented here by |
| 987 | * attr_offset and attr_len will be of large numeric types, we can be |
| 988 | * sure, that attributes are close enough to the beginning of the |
| 989 | * device, to save ourselves some trouble. |
| 990 | */ |
| 991 | unsigned int addr, attr_offset = 0, attr_len = msb->page_size; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 992 | |
| 993 | attr = kmalloc(msb->page_size, GFP_KERNEL); |
| 994 | if (!attr) |
| 995 | return -ENOMEM; |
| 996 | |
| 997 | sg_init_one(&msb->req_sg[0], attr, msb->page_size); |
| 998 | msb->seg_count = 1; |
| 999 | msb->current_seg = 0; |
| 1000 | msb->current_page = 0; |
| 1001 | msb->data_dir = READ; |
| 1002 | msb->transfer_cmd = MSPRO_CMD_READ_ATRB; |
| 1003 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1004 | msb->setup_transfer(card, attr_offset, attr_len); |
| 1005 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1006 | memstick_new_req(card->host); |
| 1007 | wait_for_completion(&card->mrq_complete); |
| 1008 | if (card->current_mrq.error) { |
| 1009 | rc = card->current_mrq.error; |
| 1010 | goto out_free_attr; |
| 1011 | } |
| 1012 | |
| 1013 | if (be16_to_cpu(attr->signature) != MSPRO_BLOCK_SIGNATURE) { |
| 1014 | printk(KERN_ERR "%s: unrecognized device signature %x\n", |
Kay Sievers | 0252c3b | 2009-01-06 10:44:38 -0800 | [diff] [blame] | 1015 | dev_name(&card->dev), be16_to_cpu(attr->signature)); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1016 | rc = -ENODEV; |
| 1017 | goto out_free_attr; |
| 1018 | } |
| 1019 | |
| 1020 | if (attr->count > MSPRO_BLOCK_MAX_ATTRIBUTES) { |
| 1021 | printk(KERN_WARNING "%s: way too many attribute entries\n", |
Kay Sievers | 0252c3b | 2009-01-06 10:44:38 -0800 | [diff] [blame] | 1022 | dev_name(&card->dev)); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1023 | attr_count = MSPRO_BLOCK_MAX_ATTRIBUTES; |
| 1024 | } else |
| 1025 | attr_count = attr->count; |
| 1026 | |
| 1027 | msb->attr_group.attrs = kzalloc((attr_count + 1) |
| 1028 | * sizeof(struct attribute), |
| 1029 | GFP_KERNEL); |
| 1030 | if (!msb->attr_group.attrs) { |
| 1031 | rc = -ENOMEM; |
| 1032 | goto out_free_attr; |
| 1033 | } |
| 1034 | msb->attr_group.name = "media_attributes"; |
| 1035 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1036 | buffer = kmalloc(attr_len, GFP_KERNEL); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1037 | if (!buffer) { |
| 1038 | rc = -ENOMEM; |
| 1039 | goto out_free_attr; |
| 1040 | } |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1041 | memcpy(buffer, (char *)attr, attr_len); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1042 | |
| 1043 | for (cnt = 0; cnt < attr_count; ++cnt) { |
| 1044 | s_attr = kzalloc(sizeof(struct mspro_sys_attr), GFP_KERNEL); |
| 1045 | if (!s_attr) { |
| 1046 | rc = -ENOMEM; |
| 1047 | goto out_free_buffer; |
| 1048 | } |
| 1049 | |
| 1050 | msb->attr_group.attrs[cnt] = &s_attr->dev_attr.attr; |
| 1051 | addr = be32_to_cpu(attr->entries[cnt].address); |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1052 | s_attr->size = be32_to_cpu(attr->entries[cnt].size); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1053 | dev_dbg(&card->dev, "adding attribute %d: id %x, address %x, " |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1054 | "size %zx\n", cnt, attr->entries[cnt].id, addr, |
| 1055 | s_attr->size); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1056 | s_attr->id = attr->entries[cnt].id; |
| 1057 | if (mspro_block_attr_name(s_attr->id)) |
| 1058 | snprintf(s_attr->name, sizeof(s_attr->name), "%s", |
| 1059 | mspro_block_attr_name(attr->entries[cnt].id)); |
| 1060 | else |
| 1061 | snprintf(s_attr->name, sizeof(s_attr->name), |
| 1062 | "attr_x%02x", attr->entries[cnt].id); |
| 1063 | |
Maxim Levitsky | 21fd049 | 2010-08-11 14:17:52 -0700 | [diff] [blame] | 1064 | sysfs_attr_init(&s_attr->dev_attr.attr); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1065 | s_attr->dev_attr.attr.name = s_attr->name; |
| 1066 | s_attr->dev_attr.attr.mode = S_IRUGO; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1067 | s_attr->dev_attr.show = mspro_block_attr_show(s_attr->id); |
| 1068 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1069 | if (!s_attr->size) |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1070 | continue; |
| 1071 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1072 | s_attr->data = kmalloc(s_attr->size, GFP_KERNEL); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1073 | if (!s_attr->data) { |
| 1074 | rc = -ENOMEM; |
| 1075 | goto out_free_buffer; |
| 1076 | } |
| 1077 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1078 | if (((addr / msb->page_size) == (attr_offset / msb->page_size)) |
| 1079 | && (((addr + s_attr->size - 1) / msb->page_size) |
| 1080 | == (attr_offset / msb->page_size))) { |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1081 | memcpy(s_attr->data, buffer + addr % msb->page_size, |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1082 | s_attr->size); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1083 | continue; |
| 1084 | } |
| 1085 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1086 | attr_offset = (addr / msb->page_size) * msb->page_size; |
| 1087 | |
| 1088 | if ((attr_offset + attr_len) < (addr + s_attr->size)) { |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1089 | kfree(buffer); |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1090 | attr_len = (((addr + s_attr->size) / msb->page_size) |
| 1091 | + 1 ) * msb->page_size - attr_offset; |
| 1092 | buffer = kmalloc(attr_len, GFP_KERNEL); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1093 | if (!buffer) { |
| 1094 | rc = -ENOMEM; |
| 1095 | goto out_free_attr; |
| 1096 | } |
| 1097 | } |
| 1098 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1099 | sg_init_one(&msb->req_sg[0], buffer, attr_len); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1100 | msb->seg_count = 1; |
| 1101 | msb->current_seg = 0; |
| 1102 | msb->current_page = 0; |
| 1103 | msb->data_dir = READ; |
| 1104 | msb->transfer_cmd = MSPRO_CMD_READ_ATRB; |
| 1105 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1106 | dev_dbg(&card->dev, "reading attribute range %x, %x\n", |
| 1107 | attr_offset, attr_len); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1108 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1109 | msb->setup_transfer(card, attr_offset, attr_len); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1110 | memstick_new_req(card->host); |
| 1111 | wait_for_completion(&card->mrq_complete); |
| 1112 | if (card->current_mrq.error) { |
| 1113 | rc = card->current_mrq.error; |
| 1114 | goto out_free_buffer; |
| 1115 | } |
| 1116 | |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1117 | memcpy(s_attr->data, buffer + addr % msb->page_size, |
| 1118 | s_attr->size); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1119 | } |
| 1120 | |
| 1121 | rc = 0; |
| 1122 | out_free_buffer: |
| 1123 | kfree(buffer); |
| 1124 | out_free_attr: |
| 1125 | kfree(attr); |
| 1126 | return rc; |
| 1127 | } |
| 1128 | |
| 1129 | static int mspro_block_init_card(struct memstick_dev *card) |
| 1130 | { |
| 1131 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 1132 | struct memstick_host *host = card->host; |
| 1133 | int rc = 0; |
| 1134 | |
Alex Dubov | e1f1999 | 2008-03-10 11:43:37 -0700 | [diff] [blame] | 1135 | msb->system = MEMSTICK_SYS_SERIAL; |
Alex Dubov | 496fc1a | 2011-01-12 17:01:05 -0800 | [diff] [blame] | 1136 | msb->setup_transfer = h_mspro_block_setup_cmd; |
| 1137 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1138 | card->reg_addr.r_offset = offsetof(struct mspro_register, status); |
| 1139 | card->reg_addr.r_length = sizeof(struct ms_status_register); |
| 1140 | card->reg_addr.w_offset = offsetof(struct mspro_register, param); |
| 1141 | card->reg_addr.w_length = sizeof(struct mspro_param_register); |
| 1142 | |
| 1143 | if (memstick_set_rw_addr(card)) |
| 1144 | return -EIO; |
| 1145 | |
Alex Dubov | ead7077 | 2008-03-19 17:01:06 -0700 | [diff] [blame] | 1146 | msb->caps = host->caps; |
Alex Dubov | 8e82f8c | 2008-09-13 02:33:26 -0700 | [diff] [blame] | 1147 | |
| 1148 | msleep(150); |
| 1149 | rc = mspro_block_wait_for_ced(card); |
| 1150 | if (rc) |
| 1151 | return rc; |
| 1152 | |
Alex Dubov | 962ee1b | 2008-03-19 17:01:07 -0700 | [diff] [blame] | 1153 | rc = mspro_block_switch_interface(card); |
| 1154 | if (rc) |
| 1155 | return rc; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1156 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1157 | dev_dbg(&card->dev, "card activated\n"); |
Alex Dubov | ead7077 | 2008-03-19 17:01:06 -0700 | [diff] [blame] | 1158 | if (msb->system != MEMSTICK_SYS_SERIAL) |
| 1159 | msb->caps |= MEMSTICK_CAP_AUTO_GET_INT; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1160 | |
| 1161 | card->next_request = h_mspro_block_req_init; |
| 1162 | msb->mrq_handler = h_mspro_block_get_ro; |
| 1163 | memstick_init_req(&card->current_mrq, MS_TPC_READ_REG, NULL, |
| 1164 | sizeof(struct ms_status_register)); |
| 1165 | memstick_new_req(card->host); |
| 1166 | wait_for_completion(&card->mrq_complete); |
| 1167 | if (card->current_mrq.error) |
| 1168 | return card->current_mrq.error; |
| 1169 | |
| 1170 | dev_dbg(&card->dev, "card r/w status %d\n", msb->read_only ? 0 : 1); |
| 1171 | |
| 1172 | msb->page_size = 512; |
| 1173 | rc = mspro_block_read_attributes(card); |
| 1174 | if (rc) |
| 1175 | return rc; |
| 1176 | |
| 1177 | dev_dbg(&card->dev, "attributes loaded\n"); |
| 1178 | return 0; |
| 1179 | |
| 1180 | } |
| 1181 | |
| 1182 | static int mspro_block_init_disk(struct memstick_dev *card) |
| 1183 | { |
| 1184 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 1185 | struct memstick_host *host = card->host; |
| 1186 | struct mspro_devinfo *dev_info = NULL; |
| 1187 | struct mspro_sys_info *sys_info = NULL; |
| 1188 | struct mspro_sys_attr *s_attr = NULL; |
| 1189 | int rc, disk_id; |
| 1190 | u64 limit = BLK_BOUNCE_HIGH; |
| 1191 | unsigned long capacity; |
| 1192 | |
Greg Kroah-Hartman | c4c66cf | 2008-03-04 00:13:36 +0100 | [diff] [blame] | 1193 | if (host->dev.dma_mask && *(host->dev.dma_mask)) |
| 1194 | limit = *(host->dev.dma_mask); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1195 | |
| 1196 | for (rc = 0; msb->attr_group.attrs[rc]; ++rc) { |
| 1197 | s_attr = mspro_from_sysfs_attr(msb->attr_group.attrs[rc]); |
| 1198 | |
| 1199 | if (s_attr->id == MSPRO_BLOCK_ID_DEVINFO) |
| 1200 | dev_info = s_attr->data; |
| 1201 | else if (s_attr->id == MSPRO_BLOCK_ID_SYSINFO) |
| 1202 | sys_info = s_attr->data; |
| 1203 | } |
| 1204 | |
| 1205 | if (!dev_info || !sys_info) |
| 1206 | return -ENODEV; |
| 1207 | |
| 1208 | msb->cylinders = be16_to_cpu(dev_info->cylinders); |
| 1209 | msb->heads = be16_to_cpu(dev_info->heads); |
| 1210 | msb->sectors_per_track = be16_to_cpu(dev_info->sectors_per_track); |
| 1211 | |
| 1212 | msb->page_size = be16_to_cpu(sys_info->unit_size); |
| 1213 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1214 | mutex_lock(&mspro_block_disk_lock); |
Alex Dubov | d8256d4 | 2011-01-12 17:01:04 -0800 | [diff] [blame] | 1215 | if (!idr_pre_get(&mspro_block_disk_idr, GFP_KERNEL)) { |
| 1216 | mutex_unlock(&mspro_block_disk_lock); |
| 1217 | return -ENOMEM; |
| 1218 | } |
| 1219 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1220 | rc = idr_get_new(&mspro_block_disk_idr, card, &disk_id); |
| 1221 | mutex_unlock(&mspro_block_disk_lock); |
| 1222 | |
| 1223 | if (rc) |
| 1224 | return rc; |
| 1225 | |
Alex Dubov | 8e82f8c | 2008-09-13 02:33:26 -0700 | [diff] [blame] | 1226 | if ((disk_id << MSPRO_BLOCK_PART_SHIFT) > 255) { |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1227 | rc = -ENOSPC; |
| 1228 | goto out_release_id; |
| 1229 | } |
| 1230 | |
Alex Dubov | 8e82f8c | 2008-09-13 02:33:26 -0700 | [diff] [blame] | 1231 | msb->disk = alloc_disk(1 << MSPRO_BLOCK_PART_SHIFT); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1232 | if (!msb->disk) { |
| 1233 | rc = -ENOMEM; |
| 1234 | goto out_release_id; |
| 1235 | } |
| 1236 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 1237 | msb->queue = blk_init_queue(mspro_block_submit_req, &msb->q_lock); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1238 | if (!msb->queue) { |
| 1239 | rc = -ENOMEM; |
| 1240 | goto out_put_disk; |
| 1241 | } |
| 1242 | |
| 1243 | msb->queue->queuedata = card; |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 1244 | blk_queue_prep_rq(msb->queue, mspro_block_prepare_req); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1245 | |
| 1246 | blk_queue_bounce_limit(msb->queue, limit); |
Martin K. Petersen | 086fa5f | 2010-02-26 00:20:38 -0500 | [diff] [blame] | 1247 | blk_queue_max_hw_sectors(msb->queue, MSPRO_BLOCK_MAX_PAGES); |
Martin K. Petersen | 8a78362 | 2010-02-26 00:20:39 -0500 | [diff] [blame] | 1248 | blk_queue_max_segments(msb->queue, MSPRO_BLOCK_MAX_SEGS); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1249 | blk_queue_max_segment_size(msb->queue, |
| 1250 | MSPRO_BLOCK_MAX_PAGES * msb->page_size); |
| 1251 | |
| 1252 | msb->disk->major = major; |
Alex Dubov | 8e82f8c | 2008-09-13 02:33:26 -0700 | [diff] [blame] | 1253 | msb->disk->first_minor = disk_id << MSPRO_BLOCK_PART_SHIFT; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1254 | msb->disk->fops = &ms_block_bdops; |
| 1255 | msb->usage_count = 1; |
| 1256 | msb->disk->private_data = msb; |
| 1257 | msb->disk->queue = msb->queue; |
| 1258 | msb->disk->driverfs_dev = &card->dev; |
| 1259 | |
| 1260 | sprintf(msb->disk->disk_name, "mspblk%d", disk_id); |
| 1261 | |
Martin K. Petersen | e1defc4 | 2009-05-22 17:17:49 -0400 | [diff] [blame] | 1262 | blk_queue_logical_block_size(msb->queue, msb->page_size); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1263 | |
| 1264 | capacity = be16_to_cpu(sys_info->user_block_count); |
| 1265 | capacity *= be16_to_cpu(sys_info->block_size); |
| 1266 | capacity *= msb->page_size >> 9; |
| 1267 | set_capacity(msb->disk, capacity); |
| 1268 | dev_dbg(&card->dev, "capacity set %ld\n", capacity); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1269 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1270 | add_disk(msb->disk); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1271 | msb->active = 1; |
| 1272 | return 0; |
| 1273 | |
| 1274 | out_put_disk: |
| 1275 | put_disk(msb->disk); |
| 1276 | out_release_id: |
| 1277 | mutex_lock(&mspro_block_disk_lock); |
| 1278 | idr_remove(&mspro_block_disk_idr, disk_id); |
| 1279 | mutex_unlock(&mspro_block_disk_lock); |
| 1280 | return rc; |
| 1281 | } |
| 1282 | |
| 1283 | static void mspro_block_data_clear(struct mspro_block_data *msb) |
| 1284 | { |
| 1285 | int cnt; |
| 1286 | struct mspro_sys_attr *s_attr; |
| 1287 | |
| 1288 | if (msb->attr_group.attrs) { |
| 1289 | for (cnt = 0; msb->attr_group.attrs[cnt]; ++cnt) { |
| 1290 | s_attr = mspro_from_sysfs_attr(msb->attr_group |
| 1291 | .attrs[cnt]); |
| 1292 | kfree(s_attr->data); |
| 1293 | kfree(s_attr); |
| 1294 | } |
| 1295 | kfree(msb->attr_group.attrs); |
| 1296 | } |
| 1297 | |
| 1298 | msb->card = NULL; |
| 1299 | } |
| 1300 | |
| 1301 | static int mspro_block_check_card(struct memstick_dev *card) |
| 1302 | { |
| 1303 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 1304 | |
| 1305 | return (msb->active == 1); |
| 1306 | } |
| 1307 | |
| 1308 | static int mspro_block_probe(struct memstick_dev *card) |
| 1309 | { |
| 1310 | struct mspro_block_data *msb; |
| 1311 | int rc = 0; |
| 1312 | |
| 1313 | msb = kzalloc(sizeof(struct mspro_block_data), GFP_KERNEL); |
| 1314 | if (!msb) |
| 1315 | return -ENOMEM; |
| 1316 | memstick_set_drvdata(card, msb); |
| 1317 | msb->card = card; |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 1318 | spin_lock_init(&msb->q_lock); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1319 | |
| 1320 | rc = mspro_block_init_card(card); |
| 1321 | |
| 1322 | if (rc) |
| 1323 | goto out_free; |
| 1324 | |
| 1325 | rc = sysfs_create_group(&card->dev.kobj, &msb->attr_group); |
| 1326 | if (rc) |
| 1327 | goto out_free; |
| 1328 | |
| 1329 | rc = mspro_block_init_disk(card); |
| 1330 | if (!rc) { |
| 1331 | card->check = mspro_block_check_card; |
Alex Dubov | 17017d8 | 2008-07-25 19:45:01 -0700 | [diff] [blame] | 1332 | card->stop = mspro_block_stop; |
| 1333 | card->start = mspro_block_start; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1334 | return 0; |
| 1335 | } |
| 1336 | |
| 1337 | sysfs_remove_group(&card->dev.kobj, &msb->attr_group); |
| 1338 | out_free: |
| 1339 | memstick_set_drvdata(card, NULL); |
| 1340 | mspro_block_data_clear(msb); |
| 1341 | kfree(msb); |
| 1342 | return rc; |
| 1343 | } |
| 1344 | |
| 1345 | static void mspro_block_remove(struct memstick_dev *card) |
| 1346 | { |
| 1347 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1348 | unsigned long flags; |
| 1349 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1350 | spin_lock_irqsave(&msb->q_lock, flags); |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 1351 | msb->eject = 1; |
| 1352 | blk_start_queue(msb->queue); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1353 | spin_unlock_irqrestore(&msb->q_lock, flags); |
| 1354 | |
Maxim Levitsky | d862b13 | 2010-08-11 14:17:52 -0700 | [diff] [blame] | 1355 | del_gendisk(msb->disk); |
| 1356 | dev_dbg(&card->dev, "mspro block remove\n"); |
| 1357 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1358 | blk_cleanup_queue(msb->queue); |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 1359 | msb->queue = NULL; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1360 | |
| 1361 | sysfs_remove_group(&card->dev.kobj, &msb->attr_group); |
| 1362 | |
| 1363 | mutex_lock(&mspro_block_disk_lock); |
| 1364 | mspro_block_data_clear(msb); |
| 1365 | mutex_unlock(&mspro_block_disk_lock); |
| 1366 | |
| 1367 | mspro_block_disk_release(msb->disk); |
| 1368 | memstick_set_drvdata(card, NULL); |
| 1369 | } |
| 1370 | |
| 1371 | #ifdef CONFIG_PM |
| 1372 | |
| 1373 | static int mspro_block_suspend(struct memstick_dev *card, pm_message_t state) |
| 1374 | { |
| 1375 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1376 | unsigned long flags; |
| 1377 | |
| 1378 | spin_lock_irqsave(&msb->q_lock, flags); |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1379 | blk_stop_queue(msb->queue); |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 1380 | msb->active = 0; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1381 | spin_unlock_irqrestore(&msb->q_lock, flags); |
| 1382 | |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1383 | return 0; |
| 1384 | } |
| 1385 | |
| 1386 | static int mspro_block_resume(struct memstick_dev *card) |
| 1387 | { |
| 1388 | struct mspro_block_data *msb = memstick_get_drvdata(card); |
| 1389 | unsigned long flags; |
| 1390 | int rc = 0; |
| 1391 | |
| 1392 | #ifdef CONFIG_MEMSTICK_UNSAFE_RESUME |
| 1393 | |
| 1394 | struct mspro_block_data *new_msb; |
| 1395 | struct memstick_host *host = card->host; |
| 1396 | struct mspro_sys_attr *s_attr, *r_attr; |
| 1397 | unsigned char cnt; |
| 1398 | |
| 1399 | mutex_lock(&host->lock); |
| 1400 | new_msb = kzalloc(sizeof(struct mspro_block_data), GFP_KERNEL); |
| 1401 | if (!new_msb) { |
| 1402 | rc = -ENOMEM; |
| 1403 | goto out_unlock; |
| 1404 | } |
| 1405 | |
| 1406 | new_msb->card = card; |
| 1407 | memstick_set_drvdata(card, new_msb); |
| 1408 | if (mspro_block_init_card(card)) |
| 1409 | goto out_free; |
| 1410 | |
| 1411 | for (cnt = 0; new_msb->attr_group.attrs[cnt] |
| 1412 | && msb->attr_group.attrs[cnt]; ++cnt) { |
| 1413 | s_attr = mspro_from_sysfs_attr(new_msb->attr_group.attrs[cnt]); |
| 1414 | r_attr = mspro_from_sysfs_attr(msb->attr_group.attrs[cnt]); |
| 1415 | |
| 1416 | if (s_attr->id == MSPRO_BLOCK_ID_SYSINFO |
| 1417 | && r_attr->id == s_attr->id) { |
| 1418 | if (memcmp(s_attr->data, r_attr->data, s_attr->size)) |
| 1419 | break; |
| 1420 | |
Alex Dubov | f1d8269 | 2008-07-25 19:45:02 -0700 | [diff] [blame] | 1421 | msb->active = 1; |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1422 | break; |
| 1423 | } |
| 1424 | } |
| 1425 | |
| 1426 | out_free: |
| 1427 | memstick_set_drvdata(card, msb); |
| 1428 | mspro_block_data_clear(new_msb); |
| 1429 | kfree(new_msb); |
| 1430 | out_unlock: |
| 1431 | mutex_unlock(&host->lock); |
| 1432 | |
| 1433 | #endif /* CONFIG_MEMSTICK_UNSAFE_RESUME */ |
| 1434 | |
| 1435 | spin_lock_irqsave(&msb->q_lock, flags); |
| 1436 | blk_start_queue(msb->queue); |
| 1437 | spin_unlock_irqrestore(&msb->q_lock, flags); |
| 1438 | return rc; |
| 1439 | } |
| 1440 | |
| 1441 | #else |
| 1442 | |
| 1443 | #define mspro_block_suspend NULL |
| 1444 | #define mspro_block_resume NULL |
| 1445 | |
| 1446 | #endif /* CONFIG_PM */ |
| 1447 | |
| 1448 | static struct memstick_device_id mspro_block_id_tbl[] = { |
| 1449 | {MEMSTICK_MATCH_ALL, MEMSTICK_TYPE_PRO, MEMSTICK_CATEGORY_STORAGE_DUO, |
Alex Dubov | 8e82f8c | 2008-09-13 02:33:26 -0700 | [diff] [blame] | 1450 | MEMSTICK_CLASS_DUO}, |
Alex Dubov | baf8532 | 2008-02-09 10:20:54 -0800 | [diff] [blame] | 1451 | {} |
| 1452 | }; |
| 1453 | |
| 1454 | |
| 1455 | static struct memstick_driver mspro_block_driver = { |
| 1456 | .driver = { |
| 1457 | .name = DRIVER_NAME, |
| 1458 | .owner = THIS_MODULE |
| 1459 | }, |
| 1460 | .id_table = mspro_block_id_tbl, |
| 1461 | .probe = mspro_block_probe, |
| 1462 | .remove = mspro_block_remove, |
| 1463 | .suspend = mspro_block_suspend, |
| 1464 | .resume = mspro_block_resume |
| 1465 | }; |
| 1466 | |
| 1467 | static int __init mspro_block_init(void) |
| 1468 | { |
| 1469 | int rc = -ENOMEM; |
| 1470 | |
| 1471 | rc = register_blkdev(major, DRIVER_NAME); |
| 1472 | if (rc < 0) { |
| 1473 | printk(KERN_ERR DRIVER_NAME ": failed to register " |
| 1474 | "major %d, error %d\n", major, rc); |
| 1475 | return rc; |
| 1476 | } |
| 1477 | if (!major) |
| 1478 | major = rc; |
| 1479 | |
| 1480 | rc = memstick_register_driver(&mspro_block_driver); |
| 1481 | if (rc) |
| 1482 | unregister_blkdev(major, DRIVER_NAME); |
| 1483 | return rc; |
| 1484 | } |
| 1485 | |
| 1486 | static void __exit mspro_block_exit(void) |
| 1487 | { |
| 1488 | memstick_unregister_driver(&mspro_block_driver); |
| 1489 | unregister_blkdev(major, DRIVER_NAME); |
| 1490 | idr_destroy(&mspro_block_disk_idr); |
| 1491 | } |
| 1492 | |
| 1493 | module_init(mspro_block_init); |
| 1494 | module_exit(mspro_block_exit); |
| 1495 | |
| 1496 | MODULE_LICENSE("GPL"); |
| 1497 | MODULE_AUTHOR("Alex Dubov"); |
| 1498 | MODULE_DESCRIPTION("Sony MemoryStickPro block device driver"); |
| 1499 | MODULE_DEVICE_TABLE(memstick, mspro_block_id_tbl); |