| 1 | #include <linux/dcache.h> |
| 2 | #include <linux/debugfs.h> |
| 3 | #include <linux/delay.h> |
| 4 | #include <linux/hardirq.h> |
| 5 | #include <linux/mm.h> |
| 6 | #include <linux/string.h> |
| 7 | #include <linux/slab.h> |
| 8 | #include <linux/export.h> |
| 9 | |
| 10 | #include "decl.h" |
| 11 | #include "cmd.h" |
| 12 | #include "debugfs.h" |
| 13 | |
| 14 | static struct dentry *lbs_dir; |
| 15 | static char *szStates[] = { |
| 16 | "Connected", |
| 17 | "Disconnected" |
| 18 | }; |
| 19 | |
| 20 | #ifdef PROC_DEBUG |
| 21 | static void lbs_debug_init(struct lbs_private *priv); |
| 22 | #endif |
| 23 | |
| 24 | static ssize_t write_file_dummy(struct file *file, const char __user *buf, |
| 25 | size_t count, loff_t *ppos) |
| 26 | { |
| 27 | return -EINVAL; |
| 28 | } |
| 29 | |
| 30 | static const size_t len = PAGE_SIZE; |
| 31 | |
| 32 | static ssize_t lbs_dev_info(struct file *file, char __user *userbuf, |
| 33 | size_t count, loff_t *ppos) |
| 34 | { |
| 35 | struct lbs_private *priv = file->private_data; |
| 36 | size_t pos = 0; |
| 37 | unsigned long addr = get_zeroed_page(GFP_KERNEL); |
| 38 | char *buf = (char *)addr; |
| 39 | ssize_t res; |
| 40 | if (!buf) |
| 41 | return -ENOMEM; |
| 42 | |
| 43 | pos += snprintf(buf+pos, len-pos, "state = %s\n", |
| 44 | szStates[priv->connect_status]); |
| 45 | pos += snprintf(buf+pos, len-pos, "region_code = %02x\n", |
| 46 | (u32) priv->regioncode); |
| 47 | |
| 48 | res = simple_read_from_buffer(userbuf, count, ppos, buf, pos); |
| 49 | |
| 50 | free_page(addr); |
| 51 | return res; |
| 52 | } |
| 53 | |
| 54 | static ssize_t lbs_sleepparams_write(struct file *file, |
| 55 | const char __user *user_buf, size_t count, |
| 56 | loff_t *ppos) |
| 57 | { |
| 58 | struct lbs_private *priv = file->private_data; |
| 59 | ssize_t buf_size, ret; |
| 60 | struct sleep_params sp; |
| 61 | int p1, p2, p3, p4, p5, p6; |
| 62 | unsigned long addr = get_zeroed_page(GFP_KERNEL); |
| 63 | char *buf = (char *)addr; |
| 64 | if (!buf) |
| 65 | return -ENOMEM; |
| 66 | |
| 67 | buf_size = min(count, len - 1); |
| 68 | if (copy_from_user(buf, user_buf, buf_size)) { |
| 69 | ret = -EFAULT; |
| 70 | goto out_unlock; |
| 71 | } |
| 72 | ret = sscanf(buf, "%d %d %d %d %d %d", &p1, &p2, &p3, &p4, &p5, &p6); |
| 73 | if (ret != 6) { |
| 74 | ret = -EINVAL; |
| 75 | goto out_unlock; |
| 76 | } |
| 77 | sp.sp_error = p1; |
| 78 | sp.sp_offset = p2; |
| 79 | sp.sp_stabletime = p3; |
| 80 | sp.sp_calcontrol = p4; |
| 81 | sp.sp_extsleepclk = p5; |
| 82 | sp.sp_reserved = p6; |
| 83 | |
| 84 | ret = lbs_cmd_802_11_sleep_params(priv, CMD_ACT_SET, &sp); |
| 85 | if (!ret) |
| 86 | ret = count; |
| 87 | else if (ret > 0) |
| 88 | ret = -EINVAL; |
| 89 | |
| 90 | out_unlock: |
| 91 | free_page(addr); |
| 92 | return ret; |
| 93 | } |
| 94 | |
| 95 | static ssize_t lbs_sleepparams_read(struct file *file, char __user *userbuf, |
| 96 | size_t count, loff_t *ppos) |
| 97 | { |
| 98 | struct lbs_private *priv = file->private_data; |
| 99 | ssize_t ret; |
| 100 | size_t pos = 0; |
| 101 | struct sleep_params sp; |
| 102 | unsigned long addr = get_zeroed_page(GFP_KERNEL); |
| 103 | char *buf = (char *)addr; |
| 104 | if (!buf) |
| 105 | return -ENOMEM; |
| 106 | |
| 107 | ret = lbs_cmd_802_11_sleep_params(priv, CMD_ACT_GET, &sp); |
| 108 | if (ret) |
| 109 | goto out_unlock; |
| 110 | |
| 111 | pos += snprintf(buf, len, "%d %d %d %d %d %d\n", sp.sp_error, |
| 112 | sp.sp_offset, sp.sp_stabletime, |
| 113 | sp.sp_calcontrol, sp.sp_extsleepclk, |
| 114 | sp.sp_reserved); |
| 115 | |
| 116 | ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos); |
| 117 | |
| 118 | out_unlock: |
| 119 | free_page(addr); |
| 120 | return ret; |
| 121 | } |
| 122 | |
| 123 | static ssize_t lbs_host_sleep_write(struct file *file, |
| 124 | const char __user *user_buf, size_t count, |
| 125 | loff_t *ppos) |
| 126 | { |
| 127 | struct lbs_private *priv = file->private_data; |
| 128 | ssize_t buf_size, ret; |
| 129 | int host_sleep; |
| 130 | unsigned long addr = get_zeroed_page(GFP_KERNEL); |
| 131 | char *buf = (char *)addr; |
| 132 | if (!buf) |
| 133 | return -ENOMEM; |
| 134 | |
| 135 | buf_size = min(count, len - 1); |
| 136 | if (copy_from_user(buf, user_buf, buf_size)) { |
| 137 | ret = -EFAULT; |
| 138 | goto out_unlock; |
| 139 | } |
| 140 | ret = sscanf(buf, "%d", &host_sleep); |
| 141 | if (ret != 1) { |
| 142 | ret = -EINVAL; |
| 143 | goto out_unlock; |
| 144 | } |
| 145 | |
| 146 | if (host_sleep == 0) |
| 147 | ret = lbs_set_host_sleep(priv, 0); |
| 148 | else if (host_sleep == 1) { |
| 149 | if (priv->wol_criteria == EHS_REMOVE_WAKEUP) { |
| 150 | netdev_info(priv->dev, |
| 151 | "wake parameters not configured\n"); |
| 152 | ret = -EINVAL; |
| 153 | goto out_unlock; |
| 154 | } |
| 155 | ret = lbs_set_host_sleep(priv, 1); |
| 156 | } else { |
| 157 | netdev_err(priv->dev, "invalid option\n"); |
| 158 | ret = -EINVAL; |
| 159 | } |
| 160 | |
| 161 | if (!ret) |
| 162 | ret = count; |
| 163 | |
| 164 | out_unlock: |
| 165 | free_page(addr); |
| 166 | return ret; |
| 167 | } |
| 168 | |
| 169 | static ssize_t lbs_host_sleep_read(struct file *file, char __user *userbuf, |
| 170 | size_t count, loff_t *ppos) |
| 171 | { |
| 172 | struct lbs_private *priv = file->private_data; |
| 173 | ssize_t ret; |
| 174 | size_t pos = 0; |
| 175 | unsigned long addr = get_zeroed_page(GFP_KERNEL); |
| 176 | char *buf = (char *)addr; |
| 177 | if (!buf) |
| 178 | return -ENOMEM; |
| 179 | |
| 180 | pos += snprintf(buf, len, "%d\n", priv->is_host_sleep_activated); |
| 181 | |
| 182 | ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos); |
| 183 | |
| 184 | free_page(addr); |
| 185 | return ret; |
| 186 | } |
| 187 | |
| 188 | /* |
| 189 | * When calling CMD_802_11_SUBSCRIBE_EVENT with CMD_ACT_GET, me might |
| 190 | * get a bunch of vendor-specific TLVs (a.k.a. IEs) back from the |
| 191 | * firmware. Here's an example: |
| 192 | * 04 01 02 00 00 00 05 01 02 00 00 00 06 01 02 00 |
| 193 | * 00 00 07 01 02 00 3c 00 00 00 00 00 00 00 03 03 |
| 194 | * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |
| 195 | * |
| 196 | * The 04 01 is the TLV type (here TLV_TYPE_RSSI_LOW), 02 00 is the length, |
| 197 | * 00 00 are the data bytes of this TLV. For this TLV, their meaning is |
| 198 | * defined in mrvlietypes_thresholds |
| 199 | * |
| 200 | * This function searches in this TLV data chunk for a given TLV type |
| 201 | * and returns a pointer to the first data byte of the TLV, or to NULL |
| 202 | * if the TLV hasn't been found. |
| 203 | */ |
| 204 | static void *lbs_tlv_find(uint16_t tlv_type, const uint8_t *tlv, uint16_t size) |
| 205 | { |
| 206 | struct mrvl_ie_header *tlv_h; |
| 207 | uint16_t length; |
| 208 | ssize_t pos = 0; |
| 209 | |
| 210 | while (pos < size) { |
| 211 | tlv_h = (struct mrvl_ie_header *) tlv; |
| 212 | if (!tlv_h->len) |
| 213 | return NULL; |
| 214 | if (tlv_h->type == cpu_to_le16(tlv_type)) |
| 215 | return tlv_h; |
| 216 | length = le16_to_cpu(tlv_h->len) + sizeof(*tlv_h); |
| 217 | pos += length; |
| 218 | tlv += length; |
| 219 | } |
| 220 | return NULL; |
| 221 | } |
| 222 | |
| 223 | |
| 224 | static ssize_t lbs_threshold_read(uint16_t tlv_type, uint16_t event_mask, |
| 225 | struct file *file, char __user *userbuf, |
| 226 | size_t count, loff_t *ppos) |
| 227 | { |
| 228 | struct cmd_ds_802_11_subscribe_event *subscribed; |
| 229 | struct mrvl_ie_thresholds *got; |
| 230 | struct lbs_private *priv = file->private_data; |
| 231 | ssize_t ret = 0; |
| 232 | size_t pos = 0; |
| 233 | char *buf; |
| 234 | u8 value; |
| 235 | u8 freq; |
| 236 | int events = 0; |
| 237 | |
| 238 | buf = (char *)get_zeroed_page(GFP_KERNEL); |
| 239 | if (!buf) |
| 240 | return -ENOMEM; |
| 241 | |
| 242 | subscribed = kzalloc(sizeof(*subscribed), GFP_KERNEL); |
| 243 | if (!subscribed) { |
| 244 | ret = -ENOMEM; |
| 245 | goto out_page; |
| 246 | } |
| 247 | |
| 248 | subscribed->hdr.size = cpu_to_le16(sizeof(*subscribed)); |
| 249 | subscribed->action = cpu_to_le16(CMD_ACT_GET); |
| 250 | |
| 251 | ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, subscribed); |
| 252 | if (ret) |
| 253 | goto out_cmd; |
| 254 | |
| 255 | got = lbs_tlv_find(tlv_type, subscribed->tlv, sizeof(subscribed->tlv)); |
| 256 | if (got) { |
| 257 | value = got->value; |
| 258 | freq = got->freq; |
| 259 | events = le16_to_cpu(subscribed->events); |
| 260 | |
| 261 | pos += snprintf(buf, len, "%d %d %d\n", value, freq, |
| 262 | !!(events & event_mask)); |
| 263 | } |
| 264 | |
| 265 | ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos); |
| 266 | |
| 267 | out_cmd: |
| 268 | kfree(subscribed); |
| 269 | |
| 270 | out_page: |
| 271 | free_page((unsigned long)buf); |
| 272 | return ret; |
| 273 | } |
| 274 | |
| 275 | |
| 276 | static ssize_t lbs_threshold_write(uint16_t tlv_type, uint16_t event_mask, |
| 277 | struct file *file, |
| 278 | const char __user *userbuf, size_t count, |
| 279 | loff_t *ppos) |
| 280 | { |
| 281 | struct cmd_ds_802_11_subscribe_event *events; |
| 282 | struct mrvl_ie_thresholds *tlv; |
| 283 | struct lbs_private *priv = file->private_data; |
| 284 | ssize_t buf_size; |
| 285 | int value, freq, new_mask; |
| 286 | uint16_t curr_mask; |
| 287 | char *buf; |
| 288 | int ret; |
| 289 | |
| 290 | buf = (char *)get_zeroed_page(GFP_KERNEL); |
| 291 | if (!buf) |
| 292 | return -ENOMEM; |
| 293 | |
| 294 | buf_size = min(count, len - 1); |
| 295 | if (copy_from_user(buf, userbuf, buf_size)) { |
| 296 | ret = -EFAULT; |
| 297 | goto out_page; |
| 298 | } |
| 299 | ret = sscanf(buf, "%d %d %d", &value, &freq, &new_mask); |
| 300 | if (ret != 3) { |
| 301 | ret = -EINVAL; |
| 302 | goto out_page; |
| 303 | } |
| 304 | events = kzalloc(sizeof(*events), GFP_KERNEL); |
| 305 | if (!events) { |
| 306 | ret = -ENOMEM; |
| 307 | goto out_page; |
| 308 | } |
| 309 | |
| 310 | events->hdr.size = cpu_to_le16(sizeof(*events)); |
| 311 | events->action = cpu_to_le16(CMD_ACT_GET); |
| 312 | |
| 313 | ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, events); |
| 314 | if (ret) |
| 315 | goto out_events; |
| 316 | |
| 317 | curr_mask = le16_to_cpu(events->events); |
| 318 | |
| 319 | if (new_mask) |
| 320 | new_mask = curr_mask | event_mask; |
| 321 | else |
| 322 | new_mask = curr_mask & ~event_mask; |
| 323 | |
| 324 | /* Now everything is set and we can send stuff down to the firmware */ |
| 325 | |
| 326 | tlv = (void *)events->tlv; |
| 327 | |
| 328 | events->action = cpu_to_le16(CMD_ACT_SET); |
| 329 | events->events = cpu_to_le16(new_mask); |
| 330 | tlv->header.type = cpu_to_le16(tlv_type); |
| 331 | tlv->header.len = cpu_to_le16(sizeof(*tlv) - sizeof(tlv->header)); |
| 332 | tlv->value = value; |
| 333 | if (tlv_type != TLV_TYPE_BCNMISS) |
| 334 | tlv->freq = freq; |
| 335 | |
| 336 | /* The command header, the action, the event mask, and one TLV */ |
| 337 | events->hdr.size = cpu_to_le16(sizeof(events->hdr) + 4 + sizeof(*tlv)); |
| 338 | |
| 339 | ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, events); |
| 340 | |
| 341 | if (!ret) |
| 342 | ret = count; |
| 343 | out_events: |
| 344 | kfree(events); |
| 345 | out_page: |
| 346 | free_page((unsigned long)buf); |
| 347 | return ret; |
| 348 | } |
| 349 | |
| 350 | |
| 351 | static ssize_t lbs_lowrssi_read(struct file *file, char __user *userbuf, |
| 352 | size_t count, loff_t *ppos) |
| 353 | { |
| 354 | return lbs_threshold_read(TLV_TYPE_RSSI_LOW, CMD_SUBSCRIBE_RSSI_LOW, |
| 355 | file, userbuf, count, ppos); |
| 356 | } |
| 357 | |
| 358 | |
| 359 | static ssize_t lbs_lowrssi_write(struct file *file, const char __user *userbuf, |
| 360 | size_t count, loff_t *ppos) |
| 361 | { |
| 362 | return lbs_threshold_write(TLV_TYPE_RSSI_LOW, CMD_SUBSCRIBE_RSSI_LOW, |
| 363 | file, userbuf, count, ppos); |
| 364 | } |
| 365 | |
| 366 | |
| 367 | static ssize_t lbs_lowsnr_read(struct file *file, char __user *userbuf, |
| 368 | size_t count, loff_t *ppos) |
| 369 | { |
| 370 | return lbs_threshold_read(TLV_TYPE_SNR_LOW, CMD_SUBSCRIBE_SNR_LOW, |
| 371 | file, userbuf, count, ppos); |
| 372 | } |
| 373 | |
| 374 | |
| 375 | static ssize_t lbs_lowsnr_write(struct file *file, const char __user *userbuf, |
| 376 | size_t count, loff_t *ppos) |
| 377 | { |
| 378 | return lbs_threshold_write(TLV_TYPE_SNR_LOW, CMD_SUBSCRIBE_SNR_LOW, |
| 379 | file, userbuf, count, ppos); |
| 380 | } |
| 381 | |
| 382 | |
| 383 | static ssize_t lbs_failcount_read(struct file *file, char __user *userbuf, |
| 384 | size_t count, loff_t *ppos) |
| 385 | { |
| 386 | return lbs_threshold_read(TLV_TYPE_FAILCOUNT, CMD_SUBSCRIBE_FAILCOUNT, |
| 387 | file, userbuf, count, ppos); |
| 388 | } |
| 389 | |
| 390 | |
| 391 | static ssize_t lbs_failcount_write(struct file *file, const char __user *userbuf, |
| 392 | size_t count, loff_t *ppos) |
| 393 | { |
| 394 | return lbs_threshold_write(TLV_TYPE_FAILCOUNT, CMD_SUBSCRIBE_FAILCOUNT, |
| 395 | file, userbuf, count, ppos); |
| 396 | } |
| 397 | |
| 398 | |
| 399 | static ssize_t lbs_highrssi_read(struct file *file, char __user *userbuf, |
| 400 | size_t count, loff_t *ppos) |
| 401 | { |
| 402 | return lbs_threshold_read(TLV_TYPE_RSSI_HIGH, CMD_SUBSCRIBE_RSSI_HIGH, |
| 403 | file, userbuf, count, ppos); |
| 404 | } |
| 405 | |
| 406 | |
| 407 | static ssize_t lbs_highrssi_write(struct file *file, const char __user *userbuf, |
| 408 | size_t count, loff_t *ppos) |
| 409 | { |
| 410 | return lbs_threshold_write(TLV_TYPE_RSSI_HIGH, CMD_SUBSCRIBE_RSSI_HIGH, |
| 411 | file, userbuf, count, ppos); |
| 412 | } |
| 413 | |
| 414 | |
| 415 | static ssize_t lbs_highsnr_read(struct file *file, char __user *userbuf, |
| 416 | size_t count, loff_t *ppos) |
| 417 | { |
| 418 | return lbs_threshold_read(TLV_TYPE_SNR_HIGH, CMD_SUBSCRIBE_SNR_HIGH, |
| 419 | file, userbuf, count, ppos); |
| 420 | } |
| 421 | |
| 422 | |
| 423 | static ssize_t lbs_highsnr_write(struct file *file, const char __user *userbuf, |
| 424 | size_t count, loff_t *ppos) |
| 425 | { |
| 426 | return lbs_threshold_write(TLV_TYPE_SNR_HIGH, CMD_SUBSCRIBE_SNR_HIGH, |
| 427 | file, userbuf, count, ppos); |
| 428 | } |
| 429 | |
| 430 | static ssize_t lbs_bcnmiss_read(struct file *file, char __user *userbuf, |
| 431 | size_t count, loff_t *ppos) |
| 432 | { |
| 433 | return lbs_threshold_read(TLV_TYPE_BCNMISS, CMD_SUBSCRIBE_BCNMISS, |
| 434 | file, userbuf, count, ppos); |
| 435 | } |
| 436 | |
| 437 | |
| 438 | static ssize_t lbs_bcnmiss_write(struct file *file, const char __user *userbuf, |
| 439 | size_t count, loff_t *ppos) |
| 440 | { |
| 441 | return lbs_threshold_write(TLV_TYPE_BCNMISS, CMD_SUBSCRIBE_BCNMISS, |
| 442 | file, userbuf, count, ppos); |
| 443 | } |
| 444 | |
| 445 | |
| 446 | static ssize_t lbs_rdmac_read(struct file *file, char __user *userbuf, |
| 447 | size_t count, loff_t *ppos) |
| 448 | { |
| 449 | struct lbs_private *priv = file->private_data; |
| 450 | ssize_t pos = 0; |
| 451 | int ret; |
| 452 | unsigned long addr = get_zeroed_page(GFP_KERNEL); |
| 453 | char *buf = (char *)addr; |
| 454 | u32 val = 0; |
| 455 | |
| 456 | if (!buf) |
| 457 | return -ENOMEM; |
| 458 | |
| 459 | ret = lbs_get_reg(priv, CMD_MAC_REG_ACCESS, priv->mac_offset, &val); |
| 460 | mdelay(10); |
| 461 | if (!ret) { |
| 462 | pos = snprintf(buf, len, "MAC[0x%x] = 0x%08x\n", |
| 463 | priv->mac_offset, val); |
| 464 | ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos); |
| 465 | } |
| 466 | free_page(addr); |
| 467 | return ret; |
| 468 | } |
| 469 | |
| 470 | static ssize_t lbs_rdmac_write(struct file *file, |
| 471 | const char __user *userbuf, |
| 472 | size_t count, loff_t *ppos) |
| 473 | { |
| 474 | struct lbs_private *priv = file->private_data; |
| 475 | ssize_t res, buf_size; |
| 476 | unsigned long addr = get_zeroed_page(GFP_KERNEL); |
| 477 | char *buf = (char *)addr; |
| 478 | if (!buf) |
| 479 | return -ENOMEM; |
| 480 | |
| 481 | buf_size = min(count, len - 1); |
| 482 | if (copy_from_user(buf, userbuf, buf_size)) { |
| 483 | res = -EFAULT; |
| 484 | goto out_unlock; |
| 485 | } |
| 486 | priv->mac_offset = simple_strtoul((char *)buf, NULL, 16); |
| 487 | res = count; |
| 488 | out_unlock: |
| 489 | free_page(addr); |
| 490 | return res; |
| 491 | } |
| 492 | |
| 493 | static ssize_t lbs_wrmac_write(struct file *file, |
| 494 | const char __user *userbuf, |
| 495 | size_t count, loff_t *ppos) |
| 496 | { |
| 497 | |
| 498 | struct lbs_private *priv = file->private_data; |
| 499 | ssize_t res, buf_size; |
| 500 | u32 offset, value; |
| 501 | unsigned long addr = get_zeroed_page(GFP_KERNEL); |
| 502 | char *buf = (char *)addr; |
| 503 | if (!buf) |
| 504 | return -ENOMEM; |
| 505 | |
| 506 | buf_size = min(count, len - 1); |
| 507 | if (copy_from_user(buf, userbuf, buf_size)) { |
| 508 | res = -EFAULT; |
| 509 | goto out_unlock; |
| 510 | } |
| 511 | res = sscanf(buf, "%x %x", &offset, &value); |
| 512 | if (res != 2) { |
| 513 | res = -EFAULT; |
| 514 | goto out_unlock; |
| 515 | } |
| 516 | |
| 517 | res = lbs_set_reg(priv, CMD_MAC_REG_ACCESS, offset, value); |
| 518 | mdelay(10); |
| 519 | |
| 520 | if (!res) |
| 521 | res = count; |
| 522 | out_unlock: |
| 523 | free_page(addr); |
| 524 | return res; |
| 525 | } |
| 526 | |
| 527 | static ssize_t lbs_rdbbp_read(struct file *file, char __user *userbuf, |
| 528 | size_t count, loff_t *ppos) |
| 529 | { |
| 530 | struct lbs_private *priv = file->private_data; |
| 531 | ssize_t pos = 0; |
| 532 | int ret; |
| 533 | unsigned long addr = get_zeroed_page(GFP_KERNEL); |
| 534 | char *buf = (char *)addr; |
| 535 | u32 val; |
| 536 | |
| 537 | if (!buf) |
| 538 | return -ENOMEM; |
| 539 | |
| 540 | ret = lbs_get_reg(priv, CMD_BBP_REG_ACCESS, priv->bbp_offset, &val); |
| 541 | mdelay(10); |
| 542 | if (!ret) { |
| 543 | pos = snprintf(buf, len, "BBP[0x%x] = 0x%08x\n", |
| 544 | priv->bbp_offset, val); |
| 545 | ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos); |
| 546 | } |
| 547 | free_page(addr); |
| 548 | |
| 549 | return ret; |
| 550 | } |
| 551 | |
| 552 | static ssize_t lbs_rdbbp_write(struct file *file, |
| 553 | const char __user *userbuf, |
| 554 | size_t count, loff_t *ppos) |
| 555 | { |
| 556 | struct lbs_private *priv = file->private_data; |
| 557 | ssize_t res, buf_size; |
| 558 | unsigned long addr = get_zeroed_page(GFP_KERNEL); |
| 559 | char *buf = (char *)addr; |
| 560 | if (!buf) |
| 561 | return -ENOMEM; |
| 562 | |
| 563 | buf_size = min(count, len - 1); |
| 564 | if (copy_from_user(buf, userbuf, buf_size)) { |
| 565 | res = -EFAULT; |
| 566 | goto out_unlock; |
| 567 | } |
| 568 | priv->bbp_offset = simple_strtoul((char *)buf, NULL, 16); |
| 569 | res = count; |
| 570 | out_unlock: |
| 571 | free_page(addr); |
| 572 | return res; |
| 573 | } |
| 574 | |
| 575 | static ssize_t lbs_wrbbp_write(struct file *file, |
| 576 | const char __user *userbuf, |
| 577 | size_t count, loff_t *ppos) |
| 578 | { |
| 579 | |
| 580 | struct lbs_private *priv = file->private_data; |
| 581 | ssize_t res, buf_size; |
| 582 | u32 offset, value; |
| 583 | unsigned long addr = get_zeroed_page(GFP_KERNEL); |
| 584 | char *buf = (char *)addr; |
| 585 | if (!buf) |
| 586 | return -ENOMEM; |
| 587 | |
| 588 | buf_size = min(count, len - 1); |
| 589 | if (copy_from_user(buf, userbuf, buf_size)) { |
| 590 | res = -EFAULT; |
| 591 | goto out_unlock; |
| 592 | } |
| 593 | res = sscanf(buf, "%x %x", &offset, &value); |
| 594 | if (res != 2) { |
| 595 | res = -EFAULT; |
| 596 | goto out_unlock; |
| 597 | } |
| 598 | |
| 599 | res = lbs_set_reg(priv, CMD_BBP_REG_ACCESS, offset, value); |
| 600 | mdelay(10); |
| 601 | |
| 602 | if (!res) |
| 603 | res = count; |
| 604 | out_unlock: |
| 605 | free_page(addr); |
| 606 | return res; |
| 607 | } |
| 608 | |
| 609 | static ssize_t lbs_rdrf_read(struct file *file, char __user *userbuf, |
| 610 | size_t count, loff_t *ppos) |
| 611 | { |
| 612 | struct lbs_private *priv = file->private_data; |
| 613 | ssize_t pos = 0; |
| 614 | int ret; |
| 615 | unsigned long addr = get_zeroed_page(GFP_KERNEL); |
| 616 | char *buf = (char *)addr; |
| 617 | u32 val; |
| 618 | |
| 619 | if (!buf) |
| 620 | return -ENOMEM; |
| 621 | |
| 622 | ret = lbs_get_reg(priv, CMD_RF_REG_ACCESS, priv->rf_offset, &val); |
| 623 | mdelay(10); |
| 624 | if (!ret) { |
| 625 | pos = snprintf(buf, len, "RF[0x%x] = 0x%08x\n", |
| 626 | priv->rf_offset, val); |
| 627 | ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos); |
| 628 | } |
| 629 | free_page(addr); |
| 630 | |
| 631 | return ret; |
| 632 | } |
| 633 | |
| 634 | static ssize_t lbs_rdrf_write(struct file *file, |
| 635 | const char __user *userbuf, |
| 636 | size_t count, loff_t *ppos) |
| 637 | { |
| 638 | struct lbs_private *priv = file->private_data; |
| 639 | ssize_t res, buf_size; |
| 640 | unsigned long addr = get_zeroed_page(GFP_KERNEL); |
| 641 | char *buf = (char *)addr; |
| 642 | if (!buf) |
| 643 | return -ENOMEM; |
| 644 | |
| 645 | buf_size = min(count, len - 1); |
| 646 | if (copy_from_user(buf, userbuf, buf_size)) { |
| 647 | res = -EFAULT; |
| 648 | goto out_unlock; |
| 649 | } |
| 650 | priv->rf_offset = simple_strtoul(buf, NULL, 16); |
| 651 | res = count; |
| 652 | out_unlock: |
| 653 | free_page(addr); |
| 654 | return res; |
| 655 | } |
| 656 | |
| 657 | static ssize_t lbs_wrrf_write(struct file *file, |
| 658 | const char __user *userbuf, |
| 659 | size_t count, loff_t *ppos) |
| 660 | { |
| 661 | |
| 662 | struct lbs_private *priv = file->private_data; |
| 663 | ssize_t res, buf_size; |
| 664 | u32 offset, value; |
| 665 | unsigned long addr = get_zeroed_page(GFP_KERNEL); |
| 666 | char *buf = (char *)addr; |
| 667 | if (!buf) |
| 668 | return -ENOMEM; |
| 669 | |
| 670 | buf_size = min(count, len - 1); |
| 671 | if (copy_from_user(buf, userbuf, buf_size)) { |
| 672 | res = -EFAULT; |
| 673 | goto out_unlock; |
| 674 | } |
| 675 | res = sscanf(buf, "%x %x", &offset, &value); |
| 676 | if (res != 2) { |
| 677 | res = -EFAULT; |
| 678 | goto out_unlock; |
| 679 | } |
| 680 | |
| 681 | res = lbs_set_reg(priv, CMD_RF_REG_ACCESS, offset, value); |
| 682 | mdelay(10); |
| 683 | |
| 684 | if (!res) |
| 685 | res = count; |
| 686 | out_unlock: |
| 687 | free_page(addr); |
| 688 | return res; |
| 689 | } |
| 690 | |
| 691 | #define FOPS(fread, fwrite) { \ |
| 692 | .owner = THIS_MODULE, \ |
| 693 | .open = simple_open, \ |
| 694 | .read = (fread), \ |
| 695 | .write = (fwrite), \ |
| 696 | .llseek = generic_file_llseek, \ |
| 697 | } |
| 698 | |
| 699 | struct lbs_debugfs_files { |
| 700 | const char *name; |
| 701 | umode_t perm; |
| 702 | struct file_operations fops; |
| 703 | }; |
| 704 | |
| 705 | static const struct lbs_debugfs_files debugfs_files[] = { |
| 706 | { "info", 0444, FOPS(lbs_dev_info, write_file_dummy), }, |
| 707 | { "sleepparams", 0644, FOPS(lbs_sleepparams_read, |
| 708 | lbs_sleepparams_write), }, |
| 709 | { "hostsleep", 0644, FOPS(lbs_host_sleep_read, |
| 710 | lbs_host_sleep_write), }, |
| 711 | }; |
| 712 | |
| 713 | static const struct lbs_debugfs_files debugfs_events_files[] = { |
| 714 | {"low_rssi", 0644, FOPS(lbs_lowrssi_read, |
| 715 | lbs_lowrssi_write), }, |
| 716 | {"low_snr", 0644, FOPS(lbs_lowsnr_read, |
| 717 | lbs_lowsnr_write), }, |
| 718 | {"failure_count", 0644, FOPS(lbs_failcount_read, |
| 719 | lbs_failcount_write), }, |
| 720 | {"beacon_missed", 0644, FOPS(lbs_bcnmiss_read, |
| 721 | lbs_bcnmiss_write), }, |
| 722 | {"high_rssi", 0644, FOPS(lbs_highrssi_read, |
| 723 | lbs_highrssi_write), }, |
| 724 | {"high_snr", 0644, FOPS(lbs_highsnr_read, |
| 725 | lbs_highsnr_write), }, |
| 726 | }; |
| 727 | |
| 728 | static const struct lbs_debugfs_files debugfs_regs_files[] = { |
| 729 | {"rdmac", 0644, FOPS(lbs_rdmac_read, lbs_rdmac_write), }, |
| 730 | {"wrmac", 0600, FOPS(NULL, lbs_wrmac_write), }, |
| 731 | {"rdbbp", 0644, FOPS(lbs_rdbbp_read, lbs_rdbbp_write), }, |
| 732 | {"wrbbp", 0600, FOPS(NULL, lbs_wrbbp_write), }, |
| 733 | {"rdrf", 0644, FOPS(lbs_rdrf_read, lbs_rdrf_write), }, |
| 734 | {"wrrf", 0600, FOPS(NULL, lbs_wrrf_write), }, |
| 735 | }; |
| 736 | |
| 737 | void lbs_debugfs_init(void) |
| 738 | { |
| 739 | if (!lbs_dir) |
| 740 | lbs_dir = debugfs_create_dir("lbs_wireless", NULL); |
| 741 | } |
| 742 | |
| 743 | void lbs_debugfs_remove(void) |
| 744 | { |
| 745 | if (lbs_dir) |
| 746 | debugfs_remove(lbs_dir); |
| 747 | } |
| 748 | |
| 749 | void lbs_debugfs_init_one(struct lbs_private *priv, struct net_device *dev) |
| 750 | { |
| 751 | int i; |
| 752 | const struct lbs_debugfs_files *files; |
| 753 | if (!lbs_dir) |
| 754 | goto exit; |
| 755 | |
| 756 | priv->debugfs_dir = debugfs_create_dir(dev->name, lbs_dir); |
| 757 | if (!priv->debugfs_dir) |
| 758 | goto exit; |
| 759 | |
| 760 | for (i=0; i<ARRAY_SIZE(debugfs_files); i++) { |
| 761 | files = &debugfs_files[i]; |
| 762 | priv->debugfs_files[i] = debugfs_create_file(files->name, |
| 763 | files->perm, |
| 764 | priv->debugfs_dir, |
| 765 | priv, |
| 766 | &files->fops); |
| 767 | } |
| 768 | |
| 769 | priv->events_dir = debugfs_create_dir("subscribed_events", priv->debugfs_dir); |
| 770 | if (!priv->events_dir) |
| 771 | goto exit; |
| 772 | |
| 773 | for (i=0; i<ARRAY_SIZE(debugfs_events_files); i++) { |
| 774 | files = &debugfs_events_files[i]; |
| 775 | priv->debugfs_events_files[i] = debugfs_create_file(files->name, |
| 776 | files->perm, |
| 777 | priv->events_dir, |
| 778 | priv, |
| 779 | &files->fops); |
| 780 | } |
| 781 | |
| 782 | priv->regs_dir = debugfs_create_dir("registers", priv->debugfs_dir); |
| 783 | if (!priv->regs_dir) |
| 784 | goto exit; |
| 785 | |
| 786 | for (i=0; i<ARRAY_SIZE(debugfs_regs_files); i++) { |
| 787 | files = &debugfs_regs_files[i]; |
| 788 | priv->debugfs_regs_files[i] = debugfs_create_file(files->name, |
| 789 | files->perm, |
| 790 | priv->regs_dir, |
| 791 | priv, |
| 792 | &files->fops); |
| 793 | } |
| 794 | |
| 795 | #ifdef PROC_DEBUG |
| 796 | lbs_debug_init(priv); |
| 797 | #endif |
| 798 | exit: |
| 799 | return; |
| 800 | } |
| 801 | |
| 802 | void lbs_debugfs_remove_one(struct lbs_private *priv) |
| 803 | { |
| 804 | int i; |
| 805 | |
| 806 | for(i=0; i<ARRAY_SIZE(debugfs_regs_files); i++) |
| 807 | debugfs_remove(priv->debugfs_regs_files[i]); |
| 808 | |
| 809 | debugfs_remove(priv->regs_dir); |
| 810 | |
| 811 | for(i=0; i<ARRAY_SIZE(debugfs_events_files); i++) |
| 812 | debugfs_remove(priv->debugfs_events_files[i]); |
| 813 | |
| 814 | debugfs_remove(priv->events_dir); |
| 815 | #ifdef PROC_DEBUG |
| 816 | debugfs_remove(priv->debugfs_debug); |
| 817 | #endif |
| 818 | for(i=0; i<ARRAY_SIZE(debugfs_files); i++) |
| 819 | debugfs_remove(priv->debugfs_files[i]); |
| 820 | debugfs_remove(priv->debugfs_dir); |
| 821 | } |
| 822 | |
| 823 | |
| 824 | |
| 825 | /* debug entry */ |
| 826 | |
| 827 | #ifdef PROC_DEBUG |
| 828 | |
| 829 | #define item_size(n) (FIELD_SIZEOF(struct lbs_private, n)) |
| 830 | #define item_addr(n) (offsetof(struct lbs_private, n)) |
| 831 | |
| 832 | |
| 833 | struct debug_data { |
| 834 | char name[32]; |
| 835 | u32 size; |
| 836 | size_t addr; |
| 837 | }; |
| 838 | |
| 839 | /* To debug any member of struct lbs_private, simply add one line here. |
| 840 | */ |
| 841 | static struct debug_data items[] = { |
| 842 | {"psmode", item_size(psmode), item_addr(psmode)}, |
| 843 | {"psstate", item_size(psstate), item_addr(psstate)}, |
| 844 | }; |
| 845 | |
| 846 | static int num_of_items = ARRAY_SIZE(items); |
| 847 | |
| 848 | /** |
| 849 | * lbs_debugfs_read - proc read function |
| 850 | * |
| 851 | * @file: file to read |
| 852 | * @userbuf: pointer to buffer |
| 853 | * @count: number of bytes to read |
| 854 | * @ppos: read data starting position |
| 855 | * |
| 856 | * returns: amount of data read or negative error code |
| 857 | */ |
| 858 | static ssize_t lbs_debugfs_read(struct file *file, char __user *userbuf, |
| 859 | size_t count, loff_t *ppos) |
| 860 | { |
| 861 | int val = 0; |
| 862 | size_t pos = 0; |
| 863 | ssize_t res; |
| 864 | char *p; |
| 865 | int i; |
| 866 | struct debug_data *d; |
| 867 | unsigned long addr = get_zeroed_page(GFP_KERNEL); |
| 868 | char *buf = (char *)addr; |
| 869 | if (!buf) |
| 870 | return -ENOMEM; |
| 871 | |
| 872 | p = buf; |
| 873 | |
| 874 | d = file->private_data; |
| 875 | |
| 876 | for (i = 0; i < num_of_items; i++) { |
| 877 | if (d[i].size == 1) |
| 878 | val = *((u8 *) d[i].addr); |
| 879 | else if (d[i].size == 2) |
| 880 | val = *((u16 *) d[i].addr); |
| 881 | else if (d[i].size == 4) |
| 882 | val = *((u32 *) d[i].addr); |
| 883 | else if (d[i].size == 8) |
| 884 | val = *((u64 *) d[i].addr); |
| 885 | |
| 886 | pos += sprintf(p + pos, "%s=%d\n", d[i].name, val); |
| 887 | } |
| 888 | |
| 889 | res = simple_read_from_buffer(userbuf, count, ppos, p, pos); |
| 890 | |
| 891 | free_page(addr); |
| 892 | return res; |
| 893 | } |
| 894 | |
| 895 | /** |
| 896 | * lbs_debugfs_write - proc write function |
| 897 | * |
| 898 | * @f: file pointer |
| 899 | * @buf: pointer to data buffer |
| 900 | * @cnt: data number to write |
| 901 | * @ppos: file position |
| 902 | * |
| 903 | * returns: amount of data written |
| 904 | */ |
| 905 | static ssize_t lbs_debugfs_write(struct file *f, const char __user *buf, |
| 906 | size_t cnt, loff_t *ppos) |
| 907 | { |
| 908 | int r, i; |
| 909 | char *pdata; |
| 910 | char *p; |
| 911 | char *p0; |
| 912 | char *p1; |
| 913 | char *p2; |
| 914 | struct debug_data *d = f->private_data; |
| 915 | |
| 916 | pdata = kmalloc(cnt, GFP_KERNEL); |
| 917 | if (pdata == NULL) |
| 918 | return 0; |
| 919 | |
| 920 | if (copy_from_user(pdata, buf, cnt)) { |
| 921 | lbs_deb_debugfs("Copy from user failed\n"); |
| 922 | kfree(pdata); |
| 923 | return 0; |
| 924 | } |
| 925 | |
| 926 | p0 = pdata; |
| 927 | for (i = 0; i < num_of_items; i++) { |
| 928 | do { |
| 929 | p = strstr(p0, d[i].name); |
| 930 | if (p == NULL) |
| 931 | break; |
| 932 | p1 = strchr(p, '\n'); |
| 933 | if (p1 == NULL) |
| 934 | break; |
| 935 | p0 = p1++; |
| 936 | p2 = strchr(p, '='); |
| 937 | if (!p2) |
| 938 | break; |
| 939 | p2++; |
| 940 | r = simple_strtoul(p2, NULL, 0); |
| 941 | if (d[i].size == 1) |
| 942 | *((u8 *) d[i].addr) = (u8) r; |
| 943 | else if (d[i].size == 2) |
| 944 | *((u16 *) d[i].addr) = (u16) r; |
| 945 | else if (d[i].size == 4) |
| 946 | *((u32 *) d[i].addr) = (u32) r; |
| 947 | else if (d[i].size == 8) |
| 948 | *((u64 *) d[i].addr) = (u64) r; |
| 949 | break; |
| 950 | } while (1); |
| 951 | } |
| 952 | kfree(pdata); |
| 953 | |
| 954 | return (ssize_t)cnt; |
| 955 | } |
| 956 | |
| 957 | static const struct file_operations lbs_debug_fops = { |
| 958 | .owner = THIS_MODULE, |
| 959 | .open = simple_open, |
| 960 | .write = lbs_debugfs_write, |
| 961 | .read = lbs_debugfs_read, |
| 962 | .llseek = default_llseek, |
| 963 | }; |
| 964 | |
| 965 | /** |
| 966 | * lbs_debug_init - create debug proc file |
| 967 | * |
| 968 | * @priv: pointer to &struct lbs_private |
| 969 | * |
| 970 | * returns: N/A |
| 971 | */ |
| 972 | static void lbs_debug_init(struct lbs_private *priv) |
| 973 | { |
| 974 | int i; |
| 975 | |
| 976 | if (!priv->debugfs_dir) |
| 977 | return; |
| 978 | |
| 979 | for (i = 0; i < num_of_items; i++) |
| 980 | items[i].addr += (size_t) priv; |
| 981 | |
| 982 | priv->debugfs_debug = debugfs_create_file("debug", 0644, |
| 983 | priv->debugfs_dir, &items[0], |
| 984 | &lbs_debug_fops); |
| 985 | } |
| 986 | #endif |