1 /* 2 * Copyright (c) 2012-2015 Qualcomm Atheros, Inc. 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #include <linux/module.h> 18 #include <linux/debugfs.h> 19 #include <linux/seq_file.h> 20 #include <linux/pci.h> 21 #include <linux/rtnetlink.h> 22 #include <linux/power_supply.h> 23 24 #include "wil6210.h" 25 #include "wmi.h" 26 #include "txrx.h" 27 #include "pmc.h" 28 29 /* Nasty hack. Better have per device instances */ 30 static u32 mem_addr; 31 static u32 dbg_txdesc_index; 32 static u32 dbg_vring_index; /* 24+ for Rx, 0..23 for Tx */ 33 u32 vring_idle_trsh = 16; /* HW fetches up to 16 descriptors at once */ 34 35 enum dbg_off_type { 36 doff_u32 = 0, 37 doff_x32 = 1, 38 doff_ulong = 2, 39 doff_io32 = 3, 40 }; 41 42 /* offset to "wil" */ 43 struct dbg_off { 44 const char *name; 45 umode_t mode; 46 ulong off; 47 enum dbg_off_type type; 48 }; 49 50 static void wil_print_vring(struct seq_file *s, struct wil6210_priv *wil, 51 const char *name, struct vring *vring, 52 char _s, char _h) 53 { 54 void __iomem *x = wmi_addr(wil, vring->hwtail); 55 u32 v; 56 57 seq_printf(s, "VRING %s = {\n", name); 58 seq_printf(s, " pa = %pad\n", &vring->pa); 59 seq_printf(s, " va = 0x%p\n", vring->va); 60 seq_printf(s, " size = %d\n", vring->size); 61 seq_printf(s, " swtail = %d\n", vring->swtail); 62 seq_printf(s, " swhead = %d\n", vring->swhead); 63 seq_printf(s, " hwtail = [0x%08x] -> ", vring->hwtail); 64 if (x) { 65 v = ioread32(x); 66 seq_printf(s, "0x%08x = %d\n", v, v); 67 } else { 68 seq_puts(s, "???\n"); 69 } 70 71 if (vring->va && (vring->size < 1025)) { 72 uint i; 73 74 for (i = 0; i < vring->size; i++) { 75 volatile struct vring_tx_desc *d = &vring->va[i].tx; 76 77 if ((i % 64) == 0 && (i != 0)) 78 seq_puts(s, "\n"); 79 seq_printf(s, "%c", (d->dma.status & BIT(0)) ? 80 _s : (vring->ctx[i].skb ? _h : 'h')); 81 } 82 seq_puts(s, "\n"); 83 } 84 seq_puts(s, "}\n"); 85 } 86 87 static int wil_vring_debugfs_show(struct seq_file *s, void *data) 88 { 89 uint i; 90 struct wil6210_priv *wil = s->private; 91 92 wil_print_vring(s, wil, "rx", &wil->vring_rx, 'S', '_'); 93 94 for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) { 95 struct vring *vring = &wil->vring_tx[i]; 96 struct vring_tx_data *txdata = &wil->vring_tx_data[i]; 97 98 if (vring->va) { 99 int cid = wil->vring2cid_tid[i][0]; 100 int tid = wil->vring2cid_tid[i][1]; 101 u32 swhead = vring->swhead; 102 u32 swtail = vring->swtail; 103 int used = (vring->size + swhead - swtail) 104 % vring->size; 105 int avail = vring->size - used - 1; 106 char name[10]; 107 char sidle[10]; 108 /* performance monitoring */ 109 cycles_t now = get_cycles(); 110 uint64_t idle = txdata->idle * 100; 111 uint64_t total = now - txdata->begin; 112 113 if (total != 0) { 114 do_div(idle, total); 115 snprintf(sidle, sizeof(sidle), "%3d%%", 116 (int)idle); 117 } else { 118 snprintf(sidle, sizeof(sidle), "N/A"); 119 } 120 txdata->begin = now; 121 txdata->idle = 0ULL; 122 123 snprintf(name, sizeof(name), "tx_%2d", i); 124 125 if (cid < WIL6210_MAX_CID) 126 seq_printf(s, 127 "\n%pM CID %d TID %d 1x%s BACK([%u] %u TU A%s) [%3d|%3d] idle %s\n", 128 wil->sta[cid].addr, cid, tid, 129 txdata->dot1x_open ? "+" : "-", 130 txdata->agg_wsize, 131 txdata->agg_timeout, 132 txdata->agg_amsdu ? "+" : "-", 133 used, avail, sidle); 134 else 135 seq_printf(s, 136 "\nBroadcast 1x%s [%3d|%3d] idle %s\n", 137 txdata->dot1x_open ? "+" : "-", 138 used, avail, sidle); 139 140 wil_print_vring(s, wil, name, vring, '_', 'H'); 141 } 142 } 143 144 return 0; 145 } 146 147 static int wil_vring_seq_open(struct inode *inode, struct file *file) 148 { 149 return single_open(file, wil_vring_debugfs_show, inode->i_private); 150 } 151 152 static const struct file_operations fops_vring = { 153 .open = wil_vring_seq_open, 154 .release = single_release, 155 .read = seq_read, 156 .llseek = seq_lseek, 157 }; 158 159 static void wil_print_ring(struct seq_file *s, const char *prefix, 160 void __iomem *off) 161 { 162 struct wil6210_priv *wil = s->private; 163 struct wil6210_mbox_ring r; 164 int rsize; 165 uint i; 166 167 wil_memcpy_fromio_32(&r, off, sizeof(r)); 168 wil_mbox_ring_le2cpus(&r); 169 /* 170 * we just read memory block from NIC. This memory may be 171 * garbage. Check validity before using it. 172 */ 173 rsize = r.size / sizeof(struct wil6210_mbox_ring_desc); 174 175 seq_printf(s, "ring %s = {\n", prefix); 176 seq_printf(s, " base = 0x%08x\n", r.base); 177 seq_printf(s, " size = 0x%04x bytes -> %d entries\n", r.size, rsize); 178 seq_printf(s, " tail = 0x%08x\n", r.tail); 179 seq_printf(s, " head = 0x%08x\n", r.head); 180 seq_printf(s, " entry size = %d\n", r.entry_size); 181 182 if (r.size % sizeof(struct wil6210_mbox_ring_desc)) { 183 seq_printf(s, " ??? size is not multiple of %zd, garbage?\n", 184 sizeof(struct wil6210_mbox_ring_desc)); 185 goto out; 186 } 187 188 if (!wmi_addr(wil, r.base) || 189 !wmi_addr(wil, r.tail) || 190 !wmi_addr(wil, r.head)) { 191 seq_puts(s, " ??? pointers are garbage?\n"); 192 goto out; 193 } 194 195 for (i = 0; i < rsize; i++) { 196 struct wil6210_mbox_ring_desc d; 197 struct wil6210_mbox_hdr hdr; 198 size_t delta = i * sizeof(d); 199 void __iomem *x = wil->csr + HOSTADDR(r.base) + delta; 200 201 wil_memcpy_fromio_32(&d, x, sizeof(d)); 202 203 seq_printf(s, " [%2x] %s %s%s 0x%08x", i, 204 d.sync ? "F" : "E", 205 (r.tail - r.base == delta) ? "t" : " ", 206 (r.head - r.base == delta) ? "h" : " ", 207 le32_to_cpu(d.addr)); 208 if (0 == wmi_read_hdr(wil, d.addr, &hdr)) { 209 u16 len = le16_to_cpu(hdr.len); 210 211 seq_printf(s, " -> %04x %04x %04x %02x\n", 212 le16_to_cpu(hdr.seq), len, 213 le16_to_cpu(hdr.type), hdr.flags); 214 if (len <= MAX_MBOXITEM_SIZE) { 215 int n = 0; 216 char printbuf[16 * 3 + 2]; 217 unsigned char databuf[MAX_MBOXITEM_SIZE]; 218 void __iomem *src = wmi_buffer(wil, d.addr) + 219 sizeof(struct wil6210_mbox_hdr); 220 /* 221 * No need to check @src for validity - 222 * we already validated @d.addr while 223 * reading header 224 */ 225 wil_memcpy_fromio_32(databuf, src, len); 226 while (n < len) { 227 int l = min(len - n, 16); 228 229 hex_dump_to_buffer(databuf + n, l, 230 16, 1, printbuf, 231 sizeof(printbuf), 232 false); 233 seq_printf(s, " : %s\n", printbuf); 234 n += l; 235 } 236 } 237 } else { 238 seq_puts(s, "\n"); 239 } 240 } 241 out: 242 seq_puts(s, "}\n"); 243 } 244 245 static int wil_mbox_debugfs_show(struct seq_file *s, void *data) 246 { 247 struct wil6210_priv *wil = s->private; 248 249 wil_print_ring(s, "tx", wil->csr + HOST_MBOX + 250 offsetof(struct wil6210_mbox_ctl, tx)); 251 wil_print_ring(s, "rx", wil->csr + HOST_MBOX + 252 offsetof(struct wil6210_mbox_ctl, rx)); 253 254 return 0; 255 } 256 257 static int wil_mbox_seq_open(struct inode *inode, struct file *file) 258 { 259 return single_open(file, wil_mbox_debugfs_show, inode->i_private); 260 } 261 262 static const struct file_operations fops_mbox = { 263 .open = wil_mbox_seq_open, 264 .release = single_release, 265 .read = seq_read, 266 .llseek = seq_lseek, 267 }; 268 269 static int wil_debugfs_iomem_x32_set(void *data, u64 val) 270 { 271 iowrite32(val, (void __iomem *)data); 272 wmb(); /* make sure write propagated to HW */ 273 274 return 0; 275 } 276 277 static int wil_debugfs_iomem_x32_get(void *data, u64 *val) 278 { 279 *val = ioread32((void __iomem *)data); 280 281 return 0; 282 } 283 284 DEFINE_SIMPLE_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get, 285 wil_debugfs_iomem_x32_set, "0x%08llx\n"); 286 287 static struct dentry *wil_debugfs_create_iomem_x32(const char *name, 288 umode_t mode, 289 struct dentry *parent, 290 void *value) 291 { 292 return debugfs_create_file(name, mode, parent, value, 293 &fops_iomem_x32); 294 } 295 296 static int wil_debugfs_ulong_set(void *data, u64 val) 297 { 298 *(ulong *)data = val; 299 return 0; 300 } 301 302 static int wil_debugfs_ulong_get(void *data, u64 *val) 303 { 304 *val = *(ulong *)data; 305 return 0; 306 } 307 308 DEFINE_SIMPLE_ATTRIBUTE(wil_fops_ulong, wil_debugfs_ulong_get, 309 wil_debugfs_ulong_set, "%llu\n"); 310 311 static struct dentry *wil_debugfs_create_ulong(const char *name, umode_t mode, 312 struct dentry *parent, 313 ulong *value) 314 { 315 return debugfs_create_file(name, mode, parent, value, &wil_fops_ulong); 316 } 317 318 /** 319 * wil6210_debugfs_init_offset - create set of debugfs files 320 * @wil - driver's context, used for printing 321 * @dbg - directory on the debugfs, where files will be created 322 * @base - base address used in address calculation 323 * @tbl - table with file descriptions. Should be terminated with empty element. 324 * 325 * Creates files accordingly to the @tbl. 326 */ 327 static void wil6210_debugfs_init_offset(struct wil6210_priv *wil, 328 struct dentry *dbg, void *base, 329 const struct dbg_off * const tbl) 330 { 331 int i; 332 333 for (i = 0; tbl[i].name; i++) { 334 struct dentry *f; 335 336 switch (tbl[i].type) { 337 case doff_u32: 338 f = debugfs_create_u32(tbl[i].name, tbl[i].mode, dbg, 339 base + tbl[i].off); 340 break; 341 case doff_x32: 342 f = debugfs_create_x32(tbl[i].name, tbl[i].mode, dbg, 343 base + tbl[i].off); 344 break; 345 case doff_ulong: 346 f = wil_debugfs_create_ulong(tbl[i].name, tbl[i].mode, 347 dbg, base + tbl[i].off); 348 break; 349 case doff_io32: 350 f = wil_debugfs_create_iomem_x32(tbl[i].name, 351 tbl[i].mode, dbg, 352 base + tbl[i].off); 353 break; 354 default: 355 f = ERR_PTR(-EINVAL); 356 } 357 if (IS_ERR_OR_NULL(f)) 358 wil_err(wil, "Create file \"%s\": err %ld\n", 359 tbl[i].name, PTR_ERR(f)); 360 } 361 } 362 363 static const struct dbg_off isr_off[] = { 364 {"ICC", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICC), doff_io32}, 365 {"ICR", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICR), doff_io32}, 366 {"ICM", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICM), doff_io32}, 367 {"ICS", S_IWUSR, offsetof(struct RGF_ICR, ICS), doff_io32}, 368 {"IMV", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, IMV), doff_io32}, 369 {"IMS", S_IWUSR, offsetof(struct RGF_ICR, IMS), doff_io32}, 370 {"IMC", S_IWUSR, offsetof(struct RGF_ICR, IMC), doff_io32}, 371 {}, 372 }; 373 374 static int wil6210_debugfs_create_ISR(struct wil6210_priv *wil, 375 const char *name, 376 struct dentry *parent, u32 off) 377 { 378 struct dentry *d = debugfs_create_dir(name, parent); 379 380 if (IS_ERR_OR_NULL(d)) 381 return -ENODEV; 382 383 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr + off, 384 isr_off); 385 386 return 0; 387 } 388 389 static const struct dbg_off pseudo_isr_off[] = { 390 {"CAUSE", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE), doff_io32}, 391 {"MASK_SW", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_SW), doff_io32}, 392 {"MASK_FW", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_FW), doff_io32}, 393 {}, 394 }; 395 396 static int wil6210_debugfs_create_pseudo_ISR(struct wil6210_priv *wil, 397 struct dentry *parent) 398 { 399 struct dentry *d = debugfs_create_dir("PSEUDO_ISR", parent); 400 401 if (IS_ERR_OR_NULL(d)) 402 return -ENODEV; 403 404 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr, 405 pseudo_isr_off); 406 407 return 0; 408 } 409 410 static const struct dbg_off lgc_itr_cnt_off[] = { 411 {"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_TRSH), doff_io32}, 412 {"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_DATA), doff_io32}, 413 {"CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_CRL), doff_io32}, 414 {}, 415 }; 416 417 static const struct dbg_off tx_itr_cnt_off[] = { 418 {"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_CNT_TRSH), 419 doff_io32}, 420 {"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_CNT_DATA), 421 doff_io32}, 422 {"CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_CNT_CTL), 423 doff_io32}, 424 {"IDL_TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_TRSH), 425 doff_io32}, 426 {"IDL_DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_DATA), 427 doff_io32}, 428 {"IDL_CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_CTL), 429 doff_io32}, 430 {}, 431 }; 432 433 static const struct dbg_off rx_itr_cnt_off[] = { 434 {"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_CNT_TRSH), 435 doff_io32}, 436 {"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_CNT_DATA), 437 doff_io32}, 438 {"CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_CNT_CTL), 439 doff_io32}, 440 {"IDL_TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_TRSH), 441 doff_io32}, 442 {"IDL_DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_DATA), 443 doff_io32}, 444 {"IDL_CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_CTL), 445 doff_io32}, 446 {}, 447 }; 448 449 static int wil6210_debugfs_create_ITR_CNT(struct wil6210_priv *wil, 450 struct dentry *parent) 451 { 452 struct dentry *d, *dtx, *drx; 453 454 d = debugfs_create_dir("ITR_CNT", parent); 455 if (IS_ERR_OR_NULL(d)) 456 return -ENODEV; 457 458 dtx = debugfs_create_dir("TX", d); 459 drx = debugfs_create_dir("RX", d); 460 if (IS_ERR_OR_NULL(dtx) || IS_ERR_OR_NULL(drx)) 461 return -ENODEV; 462 463 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr, 464 lgc_itr_cnt_off); 465 466 wil6210_debugfs_init_offset(wil, dtx, (void * __force)wil->csr, 467 tx_itr_cnt_off); 468 469 wil6210_debugfs_init_offset(wil, drx, (void * __force)wil->csr, 470 rx_itr_cnt_off); 471 return 0; 472 } 473 474 static int wil_memread_debugfs_show(struct seq_file *s, void *data) 475 { 476 struct wil6210_priv *wil = s->private; 477 void __iomem *a = wmi_buffer(wil, cpu_to_le32(mem_addr)); 478 479 if (a) 480 seq_printf(s, "[0x%08x] = 0x%08x\n", mem_addr, ioread32(a)); 481 else 482 seq_printf(s, "[0x%08x] = INVALID\n", mem_addr); 483 484 return 0; 485 } 486 487 static int wil_memread_seq_open(struct inode *inode, struct file *file) 488 { 489 return single_open(file, wil_memread_debugfs_show, inode->i_private); 490 } 491 492 static const struct file_operations fops_memread = { 493 .open = wil_memread_seq_open, 494 .release = single_release, 495 .read = seq_read, 496 .llseek = seq_lseek, 497 }; 498 499 static ssize_t wil_read_file_ioblob(struct file *file, char __user *user_buf, 500 size_t count, loff_t *ppos) 501 { 502 enum { max_count = 4096 }; 503 struct debugfs_blob_wrapper *blob = file->private_data; 504 loff_t pos = *ppos; 505 size_t available = blob->size; 506 void *buf; 507 size_t ret; 508 509 if (pos < 0) 510 return -EINVAL; 511 512 if (pos >= available || !count) 513 return 0; 514 515 if (count > available - pos) 516 count = available - pos; 517 if (count > max_count) 518 count = max_count; 519 520 buf = kmalloc(count, GFP_KERNEL); 521 if (!buf) 522 return -ENOMEM; 523 524 wil_memcpy_fromio_32(buf, (const volatile void __iomem *)blob->data + 525 pos, count); 526 527 ret = copy_to_user(user_buf, buf, count); 528 kfree(buf); 529 if (ret == count) 530 return -EFAULT; 531 532 count -= ret; 533 *ppos = pos + count; 534 535 return count; 536 } 537 538 static const struct file_operations fops_ioblob = { 539 .read = wil_read_file_ioblob, 540 .open = simple_open, 541 .llseek = default_llseek, 542 }; 543 544 static 545 struct dentry *wil_debugfs_create_ioblob(const char *name, 546 umode_t mode, 547 struct dentry *parent, 548 struct debugfs_blob_wrapper *blob) 549 { 550 return debugfs_create_file(name, mode, parent, blob, &fops_ioblob); 551 } 552 553 /*---reset---*/ 554 static ssize_t wil_write_file_reset(struct file *file, const char __user *buf, 555 size_t len, loff_t *ppos) 556 { 557 struct wil6210_priv *wil = file->private_data; 558 struct net_device *ndev = wil_to_ndev(wil); 559 560 /** 561 * BUG: 562 * this code does NOT sync device state with the rest of system 563 * use with care, debug only!!! 564 */ 565 rtnl_lock(); 566 dev_close(ndev); 567 ndev->flags &= ~IFF_UP; 568 rtnl_unlock(); 569 wil_reset(wil, true); 570 571 return len; 572 } 573 574 static const struct file_operations fops_reset = { 575 .write = wil_write_file_reset, 576 .open = simple_open, 577 }; 578 579 /*---write channel 1..4 to rxon for it, 0 to rxoff---*/ 580 static ssize_t wil_write_file_rxon(struct file *file, const char __user *buf, 581 size_t len, loff_t *ppos) 582 { 583 struct wil6210_priv *wil = file->private_data; 584 int rc; 585 long channel; 586 bool on; 587 588 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 589 590 if (!kbuf) 591 return -ENOMEM; 592 if (copy_from_user(kbuf, buf, len)) { 593 kfree(kbuf); 594 return -EIO; 595 } 596 597 kbuf[len] = '\0'; 598 rc = kstrtol(kbuf, 0, &channel); 599 kfree(kbuf); 600 if (rc) 601 return rc; 602 603 if ((channel < 0) || (channel > 4)) { 604 wil_err(wil, "Invalid channel %ld\n", channel); 605 return -EINVAL; 606 } 607 on = !!channel; 608 609 if (on) { 610 rc = wmi_set_channel(wil, (int)channel); 611 if (rc) 612 return rc; 613 } 614 615 rc = wmi_rxon(wil, on); 616 if (rc) 617 return rc; 618 619 return len; 620 } 621 622 static const struct file_operations fops_rxon = { 623 .write = wil_write_file_rxon, 624 .open = simple_open, 625 }; 626 627 /* block ack control, write: 628 * - "add <ringid> <agg_size> <timeout>" to trigger ADDBA 629 * - "del_tx <ringid> <reason>" to trigger DELBA for Tx side 630 * - "del_rx <CID> <TID> <reason>" to trigger DELBA for Rx side 631 */ 632 static ssize_t wil_write_back(struct file *file, const char __user *buf, 633 size_t len, loff_t *ppos) 634 { 635 struct wil6210_priv *wil = file->private_data; 636 int rc; 637 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 638 char cmd[9]; 639 int p1, p2, p3; 640 641 if (!kbuf) 642 return -ENOMEM; 643 644 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len); 645 if (rc != len) { 646 kfree(kbuf); 647 return rc >= 0 ? -EIO : rc; 648 } 649 650 kbuf[len] = '\0'; 651 rc = sscanf(kbuf, "%8s %d %d %d", cmd, &p1, &p2, &p3); 652 kfree(kbuf); 653 654 if (rc < 0) 655 return rc; 656 if (rc < 2) 657 return -EINVAL; 658 659 if (0 == strcmp(cmd, "add")) { 660 if (rc < 3) { 661 wil_err(wil, "BACK: add require at least 2 params\n"); 662 return -EINVAL; 663 } 664 if (rc < 4) 665 p3 = 0; 666 wmi_addba(wil, p1, p2, p3); 667 } else if (0 == strcmp(cmd, "del_tx")) { 668 if (rc < 3) 669 p2 = WLAN_REASON_QSTA_LEAVE_QBSS; 670 wmi_delba_tx(wil, p1, p2); 671 } else if (0 == strcmp(cmd, "del_rx")) { 672 if (rc < 3) { 673 wil_err(wil, 674 "BACK: del_rx require at least 2 params\n"); 675 return -EINVAL; 676 } 677 if (rc < 4) 678 p3 = WLAN_REASON_QSTA_LEAVE_QBSS; 679 wmi_delba_rx(wil, mk_cidxtid(p1, p2), p3); 680 } else { 681 wil_err(wil, "BACK: Unrecognized command \"%s\"\n", cmd); 682 return -EINVAL; 683 } 684 685 return len; 686 } 687 688 static ssize_t wil_read_back(struct file *file, char __user *user_buf, 689 size_t count, loff_t *ppos) 690 { 691 static const char text[] = "block ack control, write:\n" 692 " - \"add <ringid> <agg_size> <timeout>\" to trigger ADDBA\n" 693 "If missing, <timeout> defaults to 0\n" 694 " - \"del_tx <ringid> <reason>\" to trigger DELBA for Tx side\n" 695 " - \"del_rx <CID> <TID> <reason>\" to trigger DELBA for Rx side\n" 696 "If missing, <reason> set to \"STA_LEAVING\" (36)\n"; 697 698 return simple_read_from_buffer(user_buf, count, ppos, text, 699 sizeof(text)); 700 } 701 702 static const struct file_operations fops_back = { 703 .read = wil_read_back, 704 .write = wil_write_back, 705 .open = simple_open, 706 }; 707 708 /* pmc control, write: 709 * - "alloc <num descriptors> <descriptor_size>" to allocate PMC 710 * - "free" to release memory allocated for PMC 711 */ 712 static ssize_t wil_write_pmccfg(struct file *file, const char __user *buf, 713 size_t len, loff_t *ppos) 714 { 715 struct wil6210_priv *wil = file->private_data; 716 int rc; 717 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 718 char cmd[9]; 719 int num_descs, desc_size; 720 721 if (!kbuf) 722 return -ENOMEM; 723 724 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len); 725 if (rc != len) { 726 kfree(kbuf); 727 return rc >= 0 ? -EIO : rc; 728 } 729 730 kbuf[len] = '\0'; 731 rc = sscanf(kbuf, "%8s %d %d", cmd, &num_descs, &desc_size); 732 kfree(kbuf); 733 734 if (rc < 0) 735 return rc; 736 737 if (rc < 1) { 738 wil_err(wil, "pmccfg: no params given\n"); 739 return -EINVAL; 740 } 741 742 if (0 == strcmp(cmd, "alloc")) { 743 if (rc != 3) { 744 wil_err(wil, "pmccfg: alloc requires 2 params\n"); 745 return -EINVAL; 746 } 747 wil_pmc_alloc(wil, num_descs, desc_size); 748 } else if (0 == strcmp(cmd, "free")) { 749 if (rc != 1) { 750 wil_err(wil, "pmccfg: free does not have any params\n"); 751 return -EINVAL; 752 } 753 wil_pmc_free(wil, true); 754 } else { 755 wil_err(wil, "pmccfg: Unrecognized command \"%s\"\n", cmd); 756 return -EINVAL; 757 } 758 759 return len; 760 } 761 762 static ssize_t wil_read_pmccfg(struct file *file, char __user *user_buf, 763 size_t count, loff_t *ppos) 764 { 765 struct wil6210_priv *wil = file->private_data; 766 char text[256]; 767 char help[] = "pmc control, write:\n" 768 " - \"alloc <num descriptors> <descriptor_size>\" to allocate pmc\n" 769 " - \"free\" to free memory allocated for pmc\n"; 770 771 sprintf(text, "Last command status: %d\n\n%s", 772 wil_pmc_last_cmd_status(wil), 773 help); 774 775 return simple_read_from_buffer(user_buf, count, ppos, text, 776 strlen(text) + 1); 777 } 778 779 static const struct file_operations fops_pmccfg = { 780 .read = wil_read_pmccfg, 781 .write = wil_write_pmccfg, 782 .open = simple_open, 783 }; 784 785 static const struct file_operations fops_pmcdata = { 786 .open = simple_open, 787 .read = wil_pmc_read, 788 .llseek = wil_pmc_llseek, 789 }; 790 791 /*---tx_mgmt---*/ 792 /* Write mgmt frame to this file to send it */ 793 static ssize_t wil_write_file_txmgmt(struct file *file, const char __user *buf, 794 size_t len, loff_t *ppos) 795 { 796 struct wil6210_priv *wil = file->private_data; 797 struct wiphy *wiphy = wil_to_wiphy(wil); 798 struct wireless_dev *wdev = wil_to_wdev(wil); 799 struct cfg80211_mgmt_tx_params params; 800 int rc; 801 void *frame = kmalloc(len, GFP_KERNEL); 802 803 if (!frame) 804 return -ENOMEM; 805 806 if (copy_from_user(frame, buf, len)) { 807 kfree(frame); 808 return -EIO; 809 } 810 811 params.buf = frame; 812 params.len = len; 813 params.chan = wdev->preset_chandef.chan; 814 815 rc = wil_cfg80211_mgmt_tx(wiphy, wdev, ¶ms, NULL); 816 817 kfree(frame); 818 wil_info(wil, "%s() -> %d\n", __func__, rc); 819 820 return len; 821 } 822 823 static const struct file_operations fops_txmgmt = { 824 .write = wil_write_file_txmgmt, 825 .open = simple_open, 826 }; 827 828 /* Write WMI command (w/o mbox header) to this file to send it 829 * WMI starts from wil6210_mbox_hdr_wmi header 830 */ 831 static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf, 832 size_t len, loff_t *ppos) 833 { 834 struct wil6210_priv *wil = file->private_data; 835 struct wil6210_mbox_hdr_wmi *wmi; 836 void *cmd; 837 int cmdlen = len - sizeof(struct wil6210_mbox_hdr_wmi); 838 u16 cmdid; 839 int rc, rc1; 840 841 if (cmdlen <= 0) 842 return -EINVAL; 843 844 wmi = kmalloc(len, GFP_KERNEL); 845 if (!wmi) 846 return -ENOMEM; 847 848 rc = simple_write_to_buffer(wmi, len, ppos, buf, len); 849 if (rc < 0) { 850 kfree(wmi); 851 return rc; 852 } 853 854 cmd = &wmi[1]; 855 cmdid = le16_to_cpu(wmi->id); 856 857 rc1 = wmi_send(wil, cmdid, cmd, cmdlen); 858 kfree(wmi); 859 860 wil_info(wil, "%s(0x%04x[%d]) -> %d\n", __func__, cmdid, cmdlen, rc1); 861 862 return rc; 863 } 864 865 static const struct file_operations fops_wmi = { 866 .write = wil_write_file_wmi, 867 .open = simple_open, 868 }; 869 870 static void wil_seq_hexdump(struct seq_file *s, void *p, int len, 871 const char *prefix) 872 { 873 char printbuf[16 * 3 + 2]; 874 int i = 0; 875 876 while (i < len) { 877 int l = min(len - i, 16); 878 879 hex_dump_to_buffer(p + i, l, 16, 1, printbuf, 880 sizeof(printbuf), false); 881 seq_printf(s, "%s%s\n", prefix, printbuf); 882 i += l; 883 } 884 } 885 886 static void wil_seq_print_skb(struct seq_file *s, struct sk_buff *skb) 887 { 888 int i = 0; 889 int len = skb_headlen(skb); 890 void *p = skb->data; 891 int nr_frags = skb_shinfo(skb)->nr_frags; 892 893 seq_printf(s, " len = %d\n", len); 894 wil_seq_hexdump(s, p, len, " : "); 895 896 if (nr_frags) { 897 seq_printf(s, " nr_frags = %d\n", nr_frags); 898 for (i = 0; i < nr_frags; i++) { 899 const struct skb_frag_struct *frag = 900 &skb_shinfo(skb)->frags[i]; 901 902 len = skb_frag_size(frag); 903 p = skb_frag_address_safe(frag); 904 seq_printf(s, " [%2d] : len = %d\n", i, len); 905 wil_seq_hexdump(s, p, len, " : "); 906 } 907 } 908 } 909 910 /*---------Tx/Rx descriptor------------*/ 911 static int wil_txdesc_debugfs_show(struct seq_file *s, void *data) 912 { 913 struct wil6210_priv *wil = s->private; 914 struct vring *vring; 915 bool tx = (dbg_vring_index < WIL6210_MAX_TX_RINGS); 916 917 vring = tx ? &wil->vring_tx[dbg_vring_index] : &wil->vring_rx; 918 919 if (!vring->va) { 920 if (tx) 921 seq_printf(s, "No Tx[%2d] VRING\n", dbg_vring_index); 922 else 923 seq_puts(s, "No Rx VRING\n"); 924 return 0; 925 } 926 927 if (dbg_txdesc_index < vring->size) { 928 /* use struct vring_tx_desc for Rx as well, 929 * only field used, .dma.length, is the same 930 */ 931 volatile struct vring_tx_desc *d = 932 &vring->va[dbg_txdesc_index].tx; 933 volatile u32 *u = (volatile u32 *)d; 934 struct sk_buff *skb = vring->ctx[dbg_txdesc_index].skb; 935 936 if (tx) 937 seq_printf(s, "Tx[%2d][%3d] = {\n", dbg_vring_index, 938 dbg_txdesc_index); 939 else 940 seq_printf(s, "Rx[%3d] = {\n", dbg_txdesc_index); 941 seq_printf(s, " MAC = 0x%08x 0x%08x 0x%08x 0x%08x\n", 942 u[0], u[1], u[2], u[3]); 943 seq_printf(s, " DMA = 0x%08x 0x%08x 0x%08x 0x%08x\n", 944 u[4], u[5], u[6], u[7]); 945 seq_printf(s, " SKB = 0x%p\n", skb); 946 947 if (skb) { 948 skb_get(skb); 949 wil_seq_print_skb(s, skb); 950 kfree_skb(skb); 951 } 952 seq_puts(s, "}\n"); 953 } else { 954 if (tx) 955 seq_printf(s, "[%2d] TxDesc index (%d) >= size (%d)\n", 956 dbg_vring_index, dbg_txdesc_index, 957 vring->size); 958 else 959 seq_printf(s, "RxDesc index (%d) >= size (%d)\n", 960 dbg_txdesc_index, vring->size); 961 } 962 963 return 0; 964 } 965 966 static int wil_txdesc_seq_open(struct inode *inode, struct file *file) 967 { 968 return single_open(file, wil_txdesc_debugfs_show, inode->i_private); 969 } 970 971 static const struct file_operations fops_txdesc = { 972 .open = wil_txdesc_seq_open, 973 .release = single_release, 974 .read = seq_read, 975 .llseek = seq_lseek, 976 }; 977 978 /*---------beamforming------------*/ 979 static char *wil_bfstatus_str(u32 status) 980 { 981 switch (status) { 982 case 0: 983 return "Failed"; 984 case 1: 985 return "OK"; 986 case 2: 987 return "Retrying"; 988 default: 989 return "??"; 990 } 991 } 992 993 static bool is_all_zeros(void * const x_, size_t sz) 994 { 995 /* if reply is all-0, ignore this CID */ 996 u32 *x = x_; 997 int n; 998 999 for (n = 0; n < sz / sizeof(*x); n++) 1000 if (x[n]) 1001 return false; 1002 1003 return true; 1004 } 1005 1006 static int wil_bf_debugfs_show(struct seq_file *s, void *data) 1007 { 1008 int rc; 1009 int i; 1010 struct wil6210_priv *wil = s->private; 1011 struct wmi_notify_req_cmd cmd = { 1012 .interval_usec = 0, 1013 }; 1014 struct { 1015 struct wil6210_mbox_hdr_wmi wmi; 1016 struct wmi_notify_req_done_event evt; 1017 } __packed reply; 1018 1019 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 1020 u32 status; 1021 1022 cmd.cid = i; 1023 rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, &cmd, sizeof(cmd), 1024 WMI_NOTIFY_REQ_DONE_EVENTID, &reply, 1025 sizeof(reply), 20); 1026 /* if reply is all-0, ignore this CID */ 1027 if (rc || is_all_zeros(&reply.evt, sizeof(reply.evt))) 1028 continue; 1029 1030 status = le32_to_cpu(reply.evt.status); 1031 seq_printf(s, "CID %d {\n" 1032 " TSF = 0x%016llx\n" 1033 " TxMCS = %2d TxTpt = %4d\n" 1034 " SQI = %4d\n" 1035 " Status = 0x%08x %s\n" 1036 " Sectors(rx:tx) my %2d:%2d peer %2d:%2d\n" 1037 " Goodput(rx:tx) %4d:%4d\n" 1038 "}\n", 1039 i, 1040 le64_to_cpu(reply.evt.tsf), 1041 le16_to_cpu(reply.evt.bf_mcs), 1042 le32_to_cpu(reply.evt.tx_tpt), 1043 reply.evt.sqi, 1044 status, wil_bfstatus_str(status), 1045 le16_to_cpu(reply.evt.my_rx_sector), 1046 le16_to_cpu(reply.evt.my_tx_sector), 1047 le16_to_cpu(reply.evt.other_rx_sector), 1048 le16_to_cpu(reply.evt.other_tx_sector), 1049 le32_to_cpu(reply.evt.rx_goodput), 1050 le32_to_cpu(reply.evt.tx_goodput)); 1051 } 1052 return 0; 1053 } 1054 1055 static int wil_bf_seq_open(struct inode *inode, struct file *file) 1056 { 1057 return single_open(file, wil_bf_debugfs_show, inode->i_private); 1058 } 1059 1060 static const struct file_operations fops_bf = { 1061 .open = wil_bf_seq_open, 1062 .release = single_release, 1063 .read = seq_read, 1064 .llseek = seq_lseek, 1065 }; 1066 1067 /*---------SSID------------*/ 1068 static ssize_t wil_read_file_ssid(struct file *file, char __user *user_buf, 1069 size_t count, loff_t *ppos) 1070 { 1071 struct wil6210_priv *wil = file->private_data; 1072 struct wireless_dev *wdev = wil_to_wdev(wil); 1073 1074 return simple_read_from_buffer(user_buf, count, ppos, 1075 wdev->ssid, wdev->ssid_len); 1076 } 1077 1078 static ssize_t wil_write_file_ssid(struct file *file, const char __user *buf, 1079 size_t count, loff_t *ppos) 1080 { 1081 struct wil6210_priv *wil = file->private_data; 1082 struct wireless_dev *wdev = wil_to_wdev(wil); 1083 struct net_device *ndev = wil_to_ndev(wil); 1084 1085 if (*ppos != 0) { 1086 wil_err(wil, "Unable to set SSID substring from [%d]\n", 1087 (int)*ppos); 1088 return -EINVAL; 1089 } 1090 1091 if (count > sizeof(wdev->ssid)) { 1092 wil_err(wil, "SSID too long, len = %d\n", (int)count); 1093 return -EINVAL; 1094 } 1095 if (netif_running(ndev)) { 1096 wil_err(wil, "Unable to change SSID on running interface\n"); 1097 return -EINVAL; 1098 } 1099 1100 wdev->ssid_len = count; 1101 return simple_write_to_buffer(wdev->ssid, wdev->ssid_len, ppos, 1102 buf, count); 1103 } 1104 1105 static const struct file_operations fops_ssid = { 1106 .read = wil_read_file_ssid, 1107 .write = wil_write_file_ssid, 1108 .open = simple_open, 1109 }; 1110 1111 /*---------temp------------*/ 1112 static void print_temp(struct seq_file *s, const char *prefix, u32 t) 1113 { 1114 switch (t) { 1115 case 0: 1116 case ~(u32)0: 1117 seq_printf(s, "%s N/A\n", prefix); 1118 break; 1119 default: 1120 seq_printf(s, "%s %d.%03d\n", prefix, t / 1000, t % 1000); 1121 break; 1122 } 1123 } 1124 1125 static int wil_temp_debugfs_show(struct seq_file *s, void *data) 1126 { 1127 struct wil6210_priv *wil = s->private; 1128 u32 t_m, t_r; 1129 int rc = wmi_get_temperature(wil, &t_m, &t_r); 1130 1131 if (rc) { 1132 seq_puts(s, "Failed\n"); 1133 return 0; 1134 } 1135 1136 print_temp(s, "T_mac =", t_m); 1137 print_temp(s, "T_radio =", t_r); 1138 1139 return 0; 1140 } 1141 1142 static int wil_temp_seq_open(struct inode *inode, struct file *file) 1143 { 1144 return single_open(file, wil_temp_debugfs_show, inode->i_private); 1145 } 1146 1147 static const struct file_operations fops_temp = { 1148 .open = wil_temp_seq_open, 1149 .release = single_release, 1150 .read = seq_read, 1151 .llseek = seq_lseek, 1152 }; 1153 1154 /*---------freq------------*/ 1155 static int wil_freq_debugfs_show(struct seq_file *s, void *data) 1156 { 1157 struct wil6210_priv *wil = s->private; 1158 struct wireless_dev *wdev = wil_to_wdev(wil); 1159 u16 freq = wdev->chandef.chan ? wdev->chandef.chan->center_freq : 0; 1160 1161 seq_printf(s, "Freq = %d\n", freq); 1162 1163 return 0; 1164 } 1165 1166 static int wil_freq_seq_open(struct inode *inode, struct file *file) 1167 { 1168 return single_open(file, wil_freq_debugfs_show, inode->i_private); 1169 } 1170 1171 static const struct file_operations fops_freq = { 1172 .open = wil_freq_seq_open, 1173 .release = single_release, 1174 .read = seq_read, 1175 .llseek = seq_lseek, 1176 }; 1177 1178 /*---------link------------*/ 1179 static int wil_link_debugfs_show(struct seq_file *s, void *data) 1180 { 1181 struct wil6210_priv *wil = s->private; 1182 struct station_info sinfo; 1183 int i, rc; 1184 1185 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 1186 struct wil_sta_info *p = &wil->sta[i]; 1187 char *status = "unknown"; 1188 1189 switch (p->status) { 1190 case wil_sta_unused: 1191 status = "unused "; 1192 break; 1193 case wil_sta_conn_pending: 1194 status = "pending "; 1195 break; 1196 case wil_sta_connected: 1197 status = "connected"; 1198 break; 1199 } 1200 seq_printf(s, "[%d] %pM %s\n", i, p->addr, status); 1201 1202 if (p->status == wil_sta_connected) { 1203 rc = wil_cid_fill_sinfo(wil, i, &sinfo); 1204 if (rc) 1205 return rc; 1206 1207 seq_printf(s, " Tx_mcs = %d\n", sinfo.txrate.mcs); 1208 seq_printf(s, " Rx_mcs = %d\n", sinfo.rxrate.mcs); 1209 seq_printf(s, " SQ = %d\n", sinfo.signal); 1210 } 1211 } 1212 1213 return 0; 1214 } 1215 1216 static int wil_link_seq_open(struct inode *inode, struct file *file) 1217 { 1218 return single_open(file, wil_link_debugfs_show, inode->i_private); 1219 } 1220 1221 static const struct file_operations fops_link = { 1222 .open = wil_link_seq_open, 1223 .release = single_release, 1224 .read = seq_read, 1225 .llseek = seq_lseek, 1226 }; 1227 1228 /*---------info------------*/ 1229 static int wil_info_debugfs_show(struct seq_file *s, void *data) 1230 { 1231 struct wil6210_priv *wil = s->private; 1232 struct net_device *ndev = wil_to_ndev(wil); 1233 int is_ac = power_supply_is_system_supplied(); 1234 int rx = atomic_xchg(&wil->isr_count_rx, 0); 1235 int tx = atomic_xchg(&wil->isr_count_tx, 0); 1236 static ulong rxf_old, txf_old; 1237 ulong rxf = ndev->stats.rx_packets; 1238 ulong txf = ndev->stats.tx_packets; 1239 unsigned int i; 1240 1241 /* >0 : AC; 0 : battery; <0 : error */ 1242 seq_printf(s, "AC powered : %d\n", is_ac); 1243 seq_printf(s, "Rx irqs:packets : %8d : %8ld\n", rx, rxf - rxf_old); 1244 seq_printf(s, "Tx irqs:packets : %8d : %8ld\n", tx, txf - txf_old); 1245 rxf_old = rxf; 1246 txf_old = txf; 1247 1248 #define CHECK_QSTATE(x) (state & BIT(__QUEUE_STATE_ ## x)) ? \ 1249 " " __stringify(x) : "" 1250 1251 for (i = 0; i < ndev->num_tx_queues; i++) { 1252 struct netdev_queue *txq = netdev_get_tx_queue(ndev, i); 1253 unsigned long state = txq->state; 1254 1255 seq_printf(s, "Tx queue[%i] state : 0x%lx%s%s%s\n", i, state, 1256 CHECK_QSTATE(DRV_XOFF), 1257 CHECK_QSTATE(STACK_XOFF), 1258 CHECK_QSTATE(FROZEN) 1259 ); 1260 } 1261 #undef CHECK_QSTATE 1262 return 0; 1263 } 1264 1265 static int wil_info_seq_open(struct inode *inode, struct file *file) 1266 { 1267 return single_open(file, wil_info_debugfs_show, inode->i_private); 1268 } 1269 1270 static const struct file_operations fops_info = { 1271 .open = wil_info_seq_open, 1272 .release = single_release, 1273 .read = seq_read, 1274 .llseek = seq_lseek, 1275 }; 1276 1277 /*---------recovery------------*/ 1278 /* mode = [manual|auto] 1279 * state = [idle|pending|running] 1280 */ 1281 static ssize_t wil_read_file_recovery(struct file *file, char __user *user_buf, 1282 size_t count, loff_t *ppos) 1283 { 1284 struct wil6210_priv *wil = file->private_data; 1285 char buf[80]; 1286 int n; 1287 static const char * const sstate[] = {"idle", "pending", "running"}; 1288 1289 n = snprintf(buf, sizeof(buf), "mode = %s\nstate = %s\n", 1290 no_fw_recovery ? "manual" : "auto", 1291 sstate[wil->recovery_state]); 1292 1293 n = min_t(int, n, sizeof(buf)); 1294 1295 return simple_read_from_buffer(user_buf, count, ppos, 1296 buf, n); 1297 } 1298 1299 static ssize_t wil_write_file_recovery(struct file *file, 1300 const char __user *buf_, 1301 size_t count, loff_t *ppos) 1302 { 1303 struct wil6210_priv *wil = file->private_data; 1304 static const char run_command[] = "run"; 1305 char buf[sizeof(run_command) + 1]; /* to detect "runx" */ 1306 ssize_t rc; 1307 1308 if (wil->recovery_state != fw_recovery_pending) { 1309 wil_err(wil, "No recovery pending\n"); 1310 return -EINVAL; 1311 } 1312 1313 if (*ppos != 0) { 1314 wil_err(wil, "Offset [%d]\n", (int)*ppos); 1315 return -EINVAL; 1316 } 1317 1318 if (count > sizeof(buf)) { 1319 wil_err(wil, "Input too long, len = %d\n", (int)count); 1320 return -EINVAL; 1321 } 1322 1323 rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, buf_, count); 1324 if (rc < 0) 1325 return rc; 1326 1327 buf[rc] = '\0'; 1328 if (0 == strcmp(buf, run_command)) 1329 wil_set_recovery_state(wil, fw_recovery_running); 1330 else 1331 wil_err(wil, "Bad recovery command \"%s\"\n", buf); 1332 1333 return rc; 1334 } 1335 1336 static const struct file_operations fops_recovery = { 1337 .read = wil_read_file_recovery, 1338 .write = wil_write_file_recovery, 1339 .open = simple_open, 1340 }; 1341 1342 /*---------Station matrix------------*/ 1343 static void wil_print_rxtid(struct seq_file *s, struct wil_tid_ampdu_rx *r) 1344 { 1345 int i; 1346 u16 index = ((r->head_seq_num - r->ssn) & 0xfff) % r->buf_size; 1347 1348 seq_printf(s, "([%2d] %3d TU) 0x%03x [", r->buf_size, r->timeout, 1349 r->head_seq_num); 1350 for (i = 0; i < r->buf_size; i++) { 1351 if (i == index) 1352 seq_printf(s, "%c", r->reorder_buf[i] ? 'O' : '|'); 1353 else 1354 seq_printf(s, "%c", r->reorder_buf[i] ? '*' : '_'); 1355 } 1356 seq_printf(s, "] last drop 0x%03x\n", r->ssn_last_drop); 1357 } 1358 1359 static int wil_sta_debugfs_show(struct seq_file *s, void *data) 1360 __acquires(&p->tid_rx_lock) __releases(&p->tid_rx_lock) 1361 { 1362 struct wil6210_priv *wil = s->private; 1363 int i, tid, mcs; 1364 1365 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 1366 struct wil_sta_info *p = &wil->sta[i]; 1367 char *status = "unknown"; 1368 1369 switch (p->status) { 1370 case wil_sta_unused: 1371 status = "unused "; 1372 break; 1373 case wil_sta_conn_pending: 1374 status = "pending "; 1375 break; 1376 case wil_sta_connected: 1377 status = "connected"; 1378 break; 1379 } 1380 seq_printf(s, "[%d] %pM %s\n", i, p->addr, status); 1381 1382 if (p->status == wil_sta_connected) { 1383 spin_lock_bh(&p->tid_rx_lock); 1384 for (tid = 0; tid < WIL_STA_TID_NUM; tid++) { 1385 struct wil_tid_ampdu_rx *r = p->tid_rx[tid]; 1386 1387 if (r) { 1388 seq_printf(s, "[%2d] ", tid); 1389 wil_print_rxtid(s, r); 1390 } 1391 } 1392 spin_unlock_bh(&p->tid_rx_lock); 1393 seq_puts(s, "Rx/MCS:"); 1394 for (mcs = 0; mcs < ARRAY_SIZE(p->stats.rx_per_mcs); 1395 mcs++) 1396 seq_printf(s, " %lld", 1397 p->stats.rx_per_mcs[mcs]); 1398 seq_puts(s, "\n"); 1399 } 1400 } 1401 1402 return 0; 1403 } 1404 1405 static int wil_sta_seq_open(struct inode *inode, struct file *file) 1406 { 1407 return single_open(file, wil_sta_debugfs_show, inode->i_private); 1408 } 1409 1410 static const struct file_operations fops_sta = { 1411 .open = wil_sta_seq_open, 1412 .release = single_release, 1413 .read = seq_read, 1414 .llseek = seq_lseek, 1415 }; 1416 1417 /*----------------*/ 1418 static void wil6210_debugfs_init_blobs(struct wil6210_priv *wil, 1419 struct dentry *dbg) 1420 { 1421 int i; 1422 char name[32]; 1423 1424 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) { 1425 struct debugfs_blob_wrapper *blob = &wil->blobs[i]; 1426 const struct fw_map *map = &fw_mapping[i]; 1427 1428 if (!map->name) 1429 continue; 1430 1431 blob->data = (void * __force)wil->csr + HOSTADDR(map->host); 1432 blob->size = map->to - map->from; 1433 snprintf(name, sizeof(name), "blob_%s", map->name); 1434 wil_debugfs_create_ioblob(name, S_IRUGO, dbg, blob); 1435 } 1436 } 1437 1438 /* misc files */ 1439 static const struct { 1440 const char *name; 1441 umode_t mode; 1442 const struct file_operations *fops; 1443 } dbg_files[] = { 1444 {"mbox", S_IRUGO, &fops_mbox}, 1445 {"vrings", S_IRUGO, &fops_vring}, 1446 {"stations", S_IRUGO, &fops_sta}, 1447 {"desc", S_IRUGO, &fops_txdesc}, 1448 {"bf", S_IRUGO, &fops_bf}, 1449 {"ssid", S_IRUGO | S_IWUSR, &fops_ssid}, 1450 {"mem_val", S_IRUGO, &fops_memread}, 1451 {"reset", S_IWUSR, &fops_reset}, 1452 {"rxon", S_IWUSR, &fops_rxon}, 1453 {"tx_mgmt", S_IWUSR, &fops_txmgmt}, 1454 {"wmi_send", S_IWUSR, &fops_wmi}, 1455 {"back", S_IRUGO | S_IWUSR, &fops_back}, 1456 {"pmccfg", S_IRUGO | S_IWUSR, &fops_pmccfg}, 1457 {"pmcdata", S_IRUGO, &fops_pmcdata}, 1458 {"temp", S_IRUGO, &fops_temp}, 1459 {"freq", S_IRUGO, &fops_freq}, 1460 {"link", S_IRUGO, &fops_link}, 1461 {"info", S_IRUGO, &fops_info}, 1462 {"recovery", S_IRUGO | S_IWUSR, &fops_recovery}, 1463 }; 1464 1465 static void wil6210_debugfs_init_files(struct wil6210_priv *wil, 1466 struct dentry *dbg) 1467 { 1468 int i; 1469 1470 for (i = 0; i < ARRAY_SIZE(dbg_files); i++) 1471 debugfs_create_file(dbg_files[i].name, dbg_files[i].mode, dbg, 1472 wil, dbg_files[i].fops); 1473 } 1474 1475 /* interrupt control blocks */ 1476 static const struct { 1477 const char *name; 1478 u32 icr_off; 1479 } dbg_icr[] = { 1480 {"USER_ICR", HOSTADDR(RGF_USER_USER_ICR)}, 1481 {"DMA_EP_TX_ICR", HOSTADDR(RGF_DMA_EP_TX_ICR)}, 1482 {"DMA_EP_RX_ICR", HOSTADDR(RGF_DMA_EP_RX_ICR)}, 1483 {"DMA_EP_MISC_ICR", HOSTADDR(RGF_DMA_EP_MISC_ICR)}, 1484 }; 1485 1486 static void wil6210_debugfs_init_isr(struct wil6210_priv *wil, 1487 struct dentry *dbg) 1488 { 1489 int i; 1490 1491 for (i = 0; i < ARRAY_SIZE(dbg_icr); i++) 1492 wil6210_debugfs_create_ISR(wil, dbg_icr[i].name, dbg, 1493 dbg_icr[i].icr_off); 1494 } 1495 1496 #define WIL_FIELD(name, mode, type) { __stringify(name), mode, \ 1497 offsetof(struct wil6210_priv, name), type} 1498 1499 /* fields in struct wil6210_priv */ 1500 static const struct dbg_off dbg_wil_off[] = { 1501 WIL_FIELD(privacy, S_IRUGO, doff_u32), 1502 WIL_FIELD(status[0], S_IRUGO | S_IWUSR, doff_ulong), 1503 WIL_FIELD(fw_version, S_IRUGO, doff_u32), 1504 WIL_FIELD(hw_version, S_IRUGO, doff_x32), 1505 WIL_FIELD(recovery_count, S_IRUGO, doff_u32), 1506 WIL_FIELD(ap_isolate, S_IRUGO, doff_u32), 1507 {}, 1508 }; 1509 1510 static const struct dbg_off dbg_wil_regs[] = { 1511 {"RGF_MAC_MTRL_COUNTER_0", S_IRUGO, HOSTADDR(RGF_MAC_MTRL_COUNTER_0), 1512 doff_io32}, 1513 {"RGF_USER_USAGE_1", S_IRUGO, HOSTADDR(RGF_USER_USAGE_1), doff_io32}, 1514 {}, 1515 }; 1516 1517 /* static parameters */ 1518 static const struct dbg_off dbg_statics[] = { 1519 {"desc_index", S_IRUGO | S_IWUSR, (ulong)&dbg_txdesc_index, doff_u32}, 1520 {"vring_index", S_IRUGO | S_IWUSR, (ulong)&dbg_vring_index, doff_u32}, 1521 {"mem_addr", S_IRUGO | S_IWUSR, (ulong)&mem_addr, doff_u32}, 1522 {"vring_idle_trsh", S_IRUGO | S_IWUSR, (ulong)&vring_idle_trsh, 1523 doff_u32}, 1524 {}, 1525 }; 1526 1527 int wil6210_debugfs_init(struct wil6210_priv *wil) 1528 { 1529 struct dentry *dbg = wil->debug = debugfs_create_dir(WIL_NAME, 1530 wil_to_wiphy(wil)->debugfsdir); 1531 1532 if (IS_ERR_OR_NULL(dbg)) 1533 return -ENODEV; 1534 1535 wil_pmc_init(wil); 1536 1537 wil6210_debugfs_init_files(wil, dbg); 1538 wil6210_debugfs_init_isr(wil, dbg); 1539 wil6210_debugfs_init_blobs(wil, dbg); 1540 wil6210_debugfs_init_offset(wil, dbg, wil, dbg_wil_off); 1541 wil6210_debugfs_init_offset(wil, dbg, (void * __force)wil->csr, 1542 dbg_wil_regs); 1543 wil6210_debugfs_init_offset(wil, dbg, NULL, dbg_statics); 1544 1545 wil6210_debugfs_create_pseudo_ISR(wil, dbg); 1546 1547 wil6210_debugfs_create_ITR_CNT(wil, dbg); 1548 1549 return 0; 1550 } 1551 1552 void wil6210_debugfs_remove(struct wil6210_priv *wil) 1553 { 1554 debugfs_remove_recursive(wil->debug); 1555 wil->debug = NULL; 1556 1557 /* free pmc memory without sending command to fw, as it will 1558 * be reset on the way down anyway 1559 */ 1560 wil_pmc_free(wil, false); 1561 } 1562