1 /* 2 * Copyright (c) 2012-2016 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 doff_u8 = 4 41 }; 42 43 /* offset to "wil" */ 44 struct dbg_off { 45 const char *name; 46 umode_t mode; 47 ulong off; 48 enum dbg_off_type type; 49 }; 50 51 static void wil_print_vring(struct seq_file *s, struct wil6210_priv *wil, 52 const char *name, struct vring *vring, 53 char _s, char _h) 54 { 55 void __iomem *x = wmi_addr(wil, vring->hwtail); 56 u32 v; 57 58 seq_printf(s, "VRING %s = {\n", name); 59 seq_printf(s, " pa = %pad\n", &vring->pa); 60 seq_printf(s, " va = 0x%p\n", vring->va); 61 seq_printf(s, " size = %d\n", vring->size); 62 seq_printf(s, " swtail = %d\n", vring->swtail); 63 seq_printf(s, " swhead = %d\n", vring->swhead); 64 seq_printf(s, " hwtail = [0x%08x] -> ", vring->hwtail); 65 if (x) { 66 v = readl(x); 67 seq_printf(s, "0x%08x = %d\n", v, v); 68 } else { 69 seq_puts(s, "???\n"); 70 } 71 72 if (vring->va && (vring->size <= (1 << WIL_RING_SIZE_ORDER_MAX))) { 73 uint i; 74 75 for (i = 0; i < vring->size; i++) { 76 volatile struct vring_tx_desc *d = &vring->va[i].tx; 77 78 if ((i % 128) == 0 && (i != 0)) 79 seq_puts(s, "\n"); 80 seq_printf(s, "%c", (d->dma.status & BIT(0)) ? 81 _s : (vring->ctx[i].skb ? _h : 'h')); 82 } 83 seq_puts(s, "\n"); 84 } 85 seq_puts(s, "}\n"); 86 } 87 88 static int wil_vring_debugfs_show(struct seq_file *s, void *data) 89 { 90 uint i; 91 struct wil6210_priv *wil = s->private; 92 93 wil_print_vring(s, wil, "rx", &wil->vring_rx, 'S', '_'); 94 95 for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) { 96 struct vring *vring = &wil->vring_tx[i]; 97 struct vring_tx_data *txdata = &wil->vring_tx_data[i]; 98 99 if (vring->va) { 100 int cid = wil->vring2cid_tid[i][0]; 101 int tid = wil->vring2cid_tid[i][1]; 102 u32 swhead = vring->swhead; 103 u32 swtail = vring->swtail; 104 int used = (vring->size + swhead - swtail) 105 % vring->size; 106 int avail = vring->size - used - 1; 107 char name[10]; 108 char sidle[10]; 109 /* performance monitoring */ 110 cycles_t now = get_cycles(); 111 uint64_t idle = txdata->idle * 100; 112 uint64_t total = now - txdata->begin; 113 114 if (total != 0) { 115 do_div(idle, total); 116 snprintf(sidle, sizeof(sidle), "%3d%%", 117 (int)idle); 118 } else { 119 snprintf(sidle, sizeof(sidle), "N/A"); 120 } 121 txdata->begin = now; 122 txdata->idle = 0ULL; 123 124 snprintf(name, sizeof(name), "tx_%2d", i); 125 126 if (cid < WIL6210_MAX_CID) 127 seq_printf(s, 128 "\n%pM CID %d TID %d 1x%s BACK([%u] %u TU A%s) [%3d|%3d] idle %s\n", 129 wil->sta[cid].addr, cid, tid, 130 txdata->dot1x_open ? "+" : "-", 131 txdata->agg_wsize, 132 txdata->agg_timeout, 133 txdata->agg_amsdu ? "+" : "-", 134 used, avail, sidle); 135 else 136 seq_printf(s, 137 "\nBroadcast 1x%s [%3d|%3d] idle %s\n", 138 txdata->dot1x_open ? "+" : "-", 139 used, avail, sidle); 140 141 wil_print_vring(s, wil, name, vring, '_', 'H'); 142 } 143 } 144 145 return 0; 146 } 147 148 static int wil_vring_seq_open(struct inode *inode, struct file *file) 149 { 150 return single_open(file, wil_vring_debugfs_show, inode->i_private); 151 } 152 153 static const struct file_operations fops_vring = { 154 .open = wil_vring_seq_open, 155 .release = single_release, 156 .read = seq_read, 157 .llseek = seq_lseek, 158 }; 159 160 static void wil_seq_hexdump(struct seq_file *s, void *p, int len, 161 const char *prefix) 162 { 163 seq_hex_dump(s, prefix, DUMP_PREFIX_NONE, 16, 1, p, len, false); 164 } 165 166 static void wil_print_ring(struct seq_file *s, const char *prefix, 167 void __iomem *off) 168 { 169 struct wil6210_priv *wil = s->private; 170 struct wil6210_mbox_ring r; 171 int rsize; 172 uint i; 173 174 wil_halp_vote(wil); 175 176 wil_memcpy_fromio_32(&r, off, sizeof(r)); 177 wil_mbox_ring_le2cpus(&r); 178 /* 179 * we just read memory block from NIC. This memory may be 180 * garbage. Check validity before using it. 181 */ 182 rsize = r.size / sizeof(struct wil6210_mbox_ring_desc); 183 184 seq_printf(s, "ring %s = {\n", prefix); 185 seq_printf(s, " base = 0x%08x\n", r.base); 186 seq_printf(s, " size = 0x%04x bytes -> %d entries\n", r.size, rsize); 187 seq_printf(s, " tail = 0x%08x\n", r.tail); 188 seq_printf(s, " head = 0x%08x\n", r.head); 189 seq_printf(s, " entry size = %d\n", r.entry_size); 190 191 if (r.size % sizeof(struct wil6210_mbox_ring_desc)) { 192 seq_printf(s, " ??? size is not multiple of %zd, garbage?\n", 193 sizeof(struct wil6210_mbox_ring_desc)); 194 goto out; 195 } 196 197 if (!wmi_addr(wil, r.base) || 198 !wmi_addr(wil, r.tail) || 199 !wmi_addr(wil, r.head)) { 200 seq_puts(s, " ??? pointers are garbage?\n"); 201 goto out; 202 } 203 204 for (i = 0; i < rsize; i++) { 205 struct wil6210_mbox_ring_desc d; 206 struct wil6210_mbox_hdr hdr; 207 size_t delta = i * sizeof(d); 208 void __iomem *x = wil->csr + HOSTADDR(r.base) + delta; 209 210 wil_memcpy_fromio_32(&d, x, sizeof(d)); 211 212 seq_printf(s, " [%2x] %s %s%s 0x%08x", i, 213 d.sync ? "F" : "E", 214 (r.tail - r.base == delta) ? "t" : " ", 215 (r.head - r.base == delta) ? "h" : " ", 216 le32_to_cpu(d.addr)); 217 if (0 == wmi_read_hdr(wil, d.addr, &hdr)) { 218 u16 len = le16_to_cpu(hdr.len); 219 220 seq_printf(s, " -> %04x %04x %04x %02x\n", 221 le16_to_cpu(hdr.seq), len, 222 le16_to_cpu(hdr.type), hdr.flags); 223 if (len <= MAX_MBOXITEM_SIZE) { 224 unsigned char databuf[MAX_MBOXITEM_SIZE]; 225 void __iomem *src = wmi_buffer(wil, d.addr) + 226 sizeof(struct wil6210_mbox_hdr); 227 /* 228 * No need to check @src for validity - 229 * we already validated @d.addr while 230 * reading header 231 */ 232 wil_memcpy_fromio_32(databuf, src, len); 233 wil_seq_hexdump(s, databuf, len, " : "); 234 } 235 } else { 236 seq_puts(s, "\n"); 237 } 238 } 239 out: 240 seq_puts(s, "}\n"); 241 wil_halp_unvote(wil); 242 } 243 244 static int wil_mbox_debugfs_show(struct seq_file *s, void *data) 245 { 246 struct wil6210_priv *wil = s->private; 247 248 wil_print_ring(s, "tx", wil->csr + HOST_MBOX + 249 offsetof(struct wil6210_mbox_ctl, tx)); 250 wil_print_ring(s, "rx", wil->csr + HOST_MBOX + 251 offsetof(struct wil6210_mbox_ctl, rx)); 252 253 return 0; 254 } 255 256 static int wil_mbox_seq_open(struct inode *inode, struct file *file) 257 { 258 return single_open(file, wil_mbox_debugfs_show, inode->i_private); 259 } 260 261 static const struct file_operations fops_mbox = { 262 .open = wil_mbox_seq_open, 263 .release = single_release, 264 .read = seq_read, 265 .llseek = seq_lseek, 266 }; 267 268 static int wil_debugfs_iomem_x32_set(void *data, u64 val) 269 { 270 writel(val, (void __iomem *)data); 271 wmb(); /* make sure write propagated to HW */ 272 273 return 0; 274 } 275 276 static int wil_debugfs_iomem_x32_get(void *data, u64 *val) 277 { 278 *val = readl((void __iomem *)data); 279 280 return 0; 281 } 282 283 DEFINE_SIMPLE_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get, 284 wil_debugfs_iomem_x32_set, "0x%08llx\n"); 285 286 static struct dentry *wil_debugfs_create_iomem_x32(const char *name, 287 umode_t mode, 288 struct dentry *parent, 289 void *value) 290 { 291 return debugfs_create_file(name, mode, parent, value, 292 &fops_iomem_x32); 293 } 294 295 static int wil_debugfs_ulong_set(void *data, u64 val) 296 { 297 *(ulong *)data = val; 298 return 0; 299 } 300 301 static int wil_debugfs_ulong_get(void *data, u64 *val) 302 { 303 *val = *(ulong *)data; 304 return 0; 305 } 306 307 DEFINE_SIMPLE_ATTRIBUTE(wil_fops_ulong, wil_debugfs_ulong_get, 308 wil_debugfs_ulong_set, "0x%llx\n"); 309 310 static struct dentry *wil_debugfs_create_ulong(const char *name, umode_t mode, 311 struct dentry *parent, 312 ulong *value) 313 { 314 return debugfs_create_file(name, mode, parent, value, &wil_fops_ulong); 315 } 316 317 /** 318 * wil6210_debugfs_init_offset - create set of debugfs files 319 * @wil - driver's context, used for printing 320 * @dbg - directory on the debugfs, where files will be created 321 * @base - base address used in address calculation 322 * @tbl - table with file descriptions. Should be terminated with empty element. 323 * 324 * Creates files accordingly to the @tbl. 325 */ 326 static void wil6210_debugfs_init_offset(struct wil6210_priv *wil, 327 struct dentry *dbg, void *base, 328 const struct dbg_off * const tbl) 329 { 330 int i; 331 332 for (i = 0; tbl[i].name; i++) { 333 struct dentry *f; 334 335 switch (tbl[i].type) { 336 case doff_u32: 337 f = debugfs_create_u32(tbl[i].name, tbl[i].mode, dbg, 338 base + tbl[i].off); 339 break; 340 case doff_x32: 341 f = debugfs_create_x32(tbl[i].name, tbl[i].mode, dbg, 342 base + tbl[i].off); 343 break; 344 case doff_ulong: 345 f = wil_debugfs_create_ulong(tbl[i].name, tbl[i].mode, 346 dbg, base + tbl[i].off); 347 break; 348 case doff_io32: 349 f = wil_debugfs_create_iomem_x32(tbl[i].name, 350 tbl[i].mode, dbg, 351 base + tbl[i].off); 352 break; 353 case doff_u8: 354 f = debugfs_create_u8(tbl[i].name, tbl[i].mode, dbg, 355 base + tbl[i].off); 356 break; 357 default: 358 f = ERR_PTR(-EINVAL); 359 } 360 if (IS_ERR_OR_NULL(f)) 361 wil_err(wil, "Create file \"%s\": err %ld\n", 362 tbl[i].name, PTR_ERR(f)); 363 } 364 } 365 366 static const struct dbg_off isr_off[] = { 367 {"ICC", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICC), doff_io32}, 368 {"ICR", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICR), doff_io32}, 369 {"ICM", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, ICM), doff_io32}, 370 {"ICS", S_IWUSR, offsetof(struct RGF_ICR, ICS), doff_io32}, 371 {"IMV", S_IRUGO | S_IWUSR, offsetof(struct RGF_ICR, IMV), doff_io32}, 372 {"IMS", S_IWUSR, offsetof(struct RGF_ICR, IMS), doff_io32}, 373 {"IMC", S_IWUSR, offsetof(struct RGF_ICR, IMC), doff_io32}, 374 {}, 375 }; 376 377 static int wil6210_debugfs_create_ISR(struct wil6210_priv *wil, 378 const char *name, 379 struct dentry *parent, u32 off) 380 { 381 struct dentry *d = debugfs_create_dir(name, parent); 382 383 if (IS_ERR_OR_NULL(d)) 384 return -ENODEV; 385 386 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr + off, 387 isr_off); 388 389 return 0; 390 } 391 392 static const struct dbg_off pseudo_isr_off[] = { 393 {"CAUSE", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE), doff_io32}, 394 {"MASK_SW", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_SW), doff_io32}, 395 {"MASK_FW", S_IRUGO, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_FW), doff_io32}, 396 {}, 397 }; 398 399 static int wil6210_debugfs_create_pseudo_ISR(struct wil6210_priv *wil, 400 struct dentry *parent) 401 { 402 struct dentry *d = debugfs_create_dir("PSEUDO_ISR", parent); 403 404 if (IS_ERR_OR_NULL(d)) 405 return -ENODEV; 406 407 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr, 408 pseudo_isr_off); 409 410 return 0; 411 } 412 413 static const struct dbg_off lgc_itr_cnt_off[] = { 414 {"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_TRSH), doff_io32}, 415 {"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_DATA), doff_io32}, 416 {"CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_CNT_CRL), doff_io32}, 417 {}, 418 }; 419 420 static const struct dbg_off tx_itr_cnt_off[] = { 421 {"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_CNT_TRSH), 422 doff_io32}, 423 {"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_CNT_DATA), 424 doff_io32}, 425 {"CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_CNT_CTL), 426 doff_io32}, 427 {"IDL_TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_TRSH), 428 doff_io32}, 429 {"IDL_DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_DATA), 430 doff_io32}, 431 {"IDL_CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_CTL), 432 doff_io32}, 433 {}, 434 }; 435 436 static const struct dbg_off rx_itr_cnt_off[] = { 437 {"TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_CNT_TRSH), 438 doff_io32}, 439 {"DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_CNT_DATA), 440 doff_io32}, 441 {"CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_CNT_CTL), 442 doff_io32}, 443 {"IDL_TRSH", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_TRSH), 444 doff_io32}, 445 {"IDL_DATA", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_DATA), 446 doff_io32}, 447 {"IDL_CTL", S_IRUGO | S_IWUSR, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_CTL), 448 doff_io32}, 449 {}, 450 }; 451 452 static int wil6210_debugfs_create_ITR_CNT(struct wil6210_priv *wil, 453 struct dentry *parent) 454 { 455 struct dentry *d, *dtx, *drx; 456 457 d = debugfs_create_dir("ITR_CNT", parent); 458 if (IS_ERR_OR_NULL(d)) 459 return -ENODEV; 460 461 dtx = debugfs_create_dir("TX", d); 462 drx = debugfs_create_dir("RX", d); 463 if (IS_ERR_OR_NULL(dtx) || IS_ERR_OR_NULL(drx)) 464 return -ENODEV; 465 466 wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr, 467 lgc_itr_cnt_off); 468 469 wil6210_debugfs_init_offset(wil, dtx, (void * __force)wil->csr, 470 tx_itr_cnt_off); 471 472 wil6210_debugfs_init_offset(wil, drx, (void * __force)wil->csr, 473 rx_itr_cnt_off); 474 return 0; 475 } 476 477 static int wil_memread_debugfs_show(struct seq_file *s, void *data) 478 { 479 struct wil6210_priv *wil = s->private; 480 void __iomem *a = wmi_buffer(wil, cpu_to_le32(mem_addr)); 481 482 if (a) 483 seq_printf(s, "[0x%08x] = 0x%08x\n", mem_addr, readl(a)); 484 else 485 seq_printf(s, "[0x%08x] = INVALID\n", mem_addr); 486 487 return 0; 488 } 489 490 static int wil_memread_seq_open(struct inode *inode, struct file *file) 491 { 492 return single_open(file, wil_memread_debugfs_show, inode->i_private); 493 } 494 495 static const struct file_operations fops_memread = { 496 .open = wil_memread_seq_open, 497 .release = single_release, 498 .read = seq_read, 499 .llseek = seq_lseek, 500 }; 501 502 static ssize_t wil_read_file_ioblob(struct file *file, char __user *user_buf, 503 size_t count, loff_t *ppos) 504 { 505 enum { max_count = 4096 }; 506 struct wil_blob_wrapper *wil_blob = file->private_data; 507 loff_t pos = *ppos; 508 size_t available = wil_blob->blob.size; 509 void *buf; 510 size_t ret; 511 512 if (pos < 0) 513 return -EINVAL; 514 515 if (pos >= available || !count) 516 return 0; 517 518 if (count > available - pos) 519 count = available - pos; 520 if (count > max_count) 521 count = max_count; 522 523 buf = kmalloc(count, GFP_KERNEL); 524 if (!buf) 525 return -ENOMEM; 526 527 wil_memcpy_fromio_halp_vote(wil_blob->wil, buf, 528 (const volatile void __iomem *) 529 wil_blob->blob.data + pos, count); 530 531 ret = copy_to_user(user_buf, buf, count); 532 kfree(buf); 533 if (ret == count) 534 return -EFAULT; 535 536 count -= ret; 537 *ppos = pos + count; 538 539 return count; 540 } 541 542 static const struct file_operations fops_ioblob = { 543 .read = wil_read_file_ioblob, 544 .open = simple_open, 545 .llseek = default_llseek, 546 }; 547 548 static 549 struct dentry *wil_debugfs_create_ioblob(const char *name, 550 umode_t mode, 551 struct dentry *parent, 552 struct wil_blob_wrapper *wil_blob) 553 { 554 return debugfs_create_file(name, mode, parent, wil_blob, &fops_ioblob); 555 } 556 557 /*---reset---*/ 558 static ssize_t wil_write_file_reset(struct file *file, const char __user *buf, 559 size_t len, loff_t *ppos) 560 { 561 struct wil6210_priv *wil = file->private_data; 562 struct net_device *ndev = wil_to_ndev(wil); 563 564 /** 565 * BUG: 566 * this code does NOT sync device state with the rest of system 567 * use with care, debug only!!! 568 */ 569 rtnl_lock(); 570 dev_close(ndev); 571 ndev->flags &= ~IFF_UP; 572 rtnl_unlock(); 573 wil_reset(wil, true); 574 575 return len; 576 } 577 578 static const struct file_operations fops_reset = { 579 .write = wil_write_file_reset, 580 .open = simple_open, 581 }; 582 583 /*---write channel 1..4 to rxon for it, 0 to rxoff---*/ 584 static ssize_t wil_write_file_rxon(struct file *file, const char __user *buf, 585 size_t len, loff_t *ppos) 586 { 587 struct wil6210_priv *wil = file->private_data; 588 int rc; 589 long channel; 590 bool on; 591 592 char *kbuf = memdup_user_nul(buf, len); 593 594 if (IS_ERR(kbuf)) 595 return PTR_ERR(kbuf); 596 rc = kstrtol(kbuf, 0, &channel); 597 kfree(kbuf); 598 if (rc) 599 return rc; 600 601 if ((channel < 0) || (channel > 4)) { 602 wil_err(wil, "Invalid channel %ld\n", channel); 603 return -EINVAL; 604 } 605 on = !!channel; 606 607 if (on) { 608 rc = wmi_set_channel(wil, (int)channel); 609 if (rc) 610 return rc; 611 } 612 613 rc = wmi_rxon(wil, on); 614 if (rc) 615 return rc; 616 617 return len; 618 } 619 620 static const struct file_operations fops_rxon = { 621 .write = wil_write_file_rxon, 622 .open = simple_open, 623 }; 624 625 /* block ack control, write: 626 * - "add <ringid> <agg_size> <timeout>" to trigger ADDBA 627 * - "del_tx <ringid> <reason>" to trigger DELBA for Tx side 628 * - "del_rx <CID> <TID> <reason>" to trigger DELBA for Rx side 629 */ 630 static ssize_t wil_write_back(struct file *file, const char __user *buf, 631 size_t len, loff_t *ppos) 632 { 633 struct wil6210_priv *wil = file->private_data; 634 int rc; 635 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 636 char cmd[9]; 637 int p1, p2, p3; 638 639 if (!kbuf) 640 return -ENOMEM; 641 642 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len); 643 if (rc != len) { 644 kfree(kbuf); 645 return rc >= 0 ? -EIO : rc; 646 } 647 648 kbuf[len] = '\0'; 649 rc = sscanf(kbuf, "%8s %d %d %d", cmd, &p1, &p2, &p3); 650 kfree(kbuf); 651 652 if (rc < 0) 653 return rc; 654 if (rc < 2) 655 return -EINVAL; 656 657 if (0 == strcmp(cmd, "add")) { 658 if (rc < 3) { 659 wil_err(wil, "BACK: add require at least 2 params\n"); 660 return -EINVAL; 661 } 662 if (rc < 4) 663 p3 = 0; 664 wmi_addba(wil, p1, p2, p3); 665 } else if (0 == strcmp(cmd, "del_tx")) { 666 if (rc < 3) 667 p2 = WLAN_REASON_QSTA_LEAVE_QBSS; 668 wmi_delba_tx(wil, p1, p2); 669 } else if (0 == strcmp(cmd, "del_rx")) { 670 if (rc < 3) { 671 wil_err(wil, 672 "BACK: del_rx require at least 2 params\n"); 673 return -EINVAL; 674 } 675 if (rc < 4) 676 p3 = WLAN_REASON_QSTA_LEAVE_QBSS; 677 wmi_delba_rx(wil, mk_cidxtid(p1, p2), p3); 678 } else { 679 wil_err(wil, "BACK: Unrecognized command \"%s\"\n", cmd); 680 return -EINVAL; 681 } 682 683 return len; 684 } 685 686 static ssize_t wil_read_back(struct file *file, char __user *user_buf, 687 size_t count, loff_t *ppos) 688 { 689 static const char text[] = "block ack control, write:\n" 690 " - \"add <ringid> <agg_size> <timeout>\" to trigger ADDBA\n" 691 "If missing, <timeout> defaults to 0\n" 692 " - \"del_tx <ringid> <reason>\" to trigger DELBA for Tx side\n" 693 " - \"del_rx <CID> <TID> <reason>\" to trigger DELBA for Rx side\n" 694 "If missing, <reason> set to \"STA_LEAVING\" (36)\n"; 695 696 return simple_read_from_buffer(user_buf, count, ppos, text, 697 sizeof(text)); 698 } 699 700 static const struct file_operations fops_back = { 701 .read = wil_read_back, 702 .write = wil_write_back, 703 .open = simple_open, 704 }; 705 706 /* pmc control, write: 707 * - "alloc <num descriptors> <descriptor_size>" to allocate PMC 708 * - "free" to release memory allocated for PMC 709 */ 710 static ssize_t wil_write_pmccfg(struct file *file, const char __user *buf, 711 size_t len, loff_t *ppos) 712 { 713 struct wil6210_priv *wil = file->private_data; 714 int rc; 715 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 716 char cmd[9]; 717 int num_descs, desc_size; 718 719 if (!kbuf) 720 return -ENOMEM; 721 722 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len); 723 if (rc != len) { 724 kfree(kbuf); 725 return rc >= 0 ? -EIO : rc; 726 } 727 728 kbuf[len] = '\0'; 729 rc = sscanf(kbuf, "%8s %d %d", cmd, &num_descs, &desc_size); 730 kfree(kbuf); 731 732 if (rc < 0) 733 return rc; 734 735 if (rc < 1) { 736 wil_err(wil, "pmccfg: no params given\n"); 737 return -EINVAL; 738 } 739 740 if (0 == strcmp(cmd, "alloc")) { 741 if (rc != 3) { 742 wil_err(wil, "pmccfg: alloc requires 2 params\n"); 743 return -EINVAL; 744 } 745 wil_pmc_alloc(wil, num_descs, desc_size); 746 } else if (0 == strcmp(cmd, "free")) { 747 if (rc != 1) { 748 wil_err(wil, "pmccfg: free does not have any params\n"); 749 return -EINVAL; 750 } 751 wil_pmc_free(wil, true); 752 } else { 753 wil_err(wil, "pmccfg: Unrecognized command \"%s\"\n", cmd); 754 return -EINVAL; 755 } 756 757 return len; 758 } 759 760 static ssize_t wil_read_pmccfg(struct file *file, char __user *user_buf, 761 size_t count, loff_t *ppos) 762 { 763 struct wil6210_priv *wil = file->private_data; 764 char text[256]; 765 char help[] = "pmc control, write:\n" 766 " - \"alloc <num descriptors> <descriptor_size>\" to allocate pmc\n" 767 " - \"free\" to free memory allocated for pmc\n"; 768 769 sprintf(text, "Last command status: %d\n\n%s", 770 wil_pmc_last_cmd_status(wil), 771 help); 772 773 return simple_read_from_buffer(user_buf, count, ppos, text, 774 strlen(text) + 1); 775 } 776 777 static const struct file_operations fops_pmccfg = { 778 .read = wil_read_pmccfg, 779 .write = wil_write_pmccfg, 780 .open = simple_open, 781 }; 782 783 static const struct file_operations fops_pmcdata = { 784 .open = simple_open, 785 .read = wil_pmc_read, 786 .llseek = wil_pmc_llseek, 787 }; 788 789 /*---tx_mgmt---*/ 790 /* Write mgmt frame to this file to send it */ 791 static ssize_t wil_write_file_txmgmt(struct file *file, const char __user *buf, 792 size_t len, loff_t *ppos) 793 { 794 struct wil6210_priv *wil = file->private_data; 795 struct wiphy *wiphy = wil_to_wiphy(wil); 796 struct wireless_dev *wdev = wil_to_wdev(wil); 797 struct cfg80211_mgmt_tx_params params; 798 int rc; 799 void *frame = kmalloc(len, GFP_KERNEL); 800 801 if (!frame) 802 return -ENOMEM; 803 804 if (copy_from_user(frame, buf, len)) { 805 kfree(frame); 806 return -EIO; 807 } 808 809 params.buf = frame; 810 params.len = len; 811 params.chan = wdev->preset_chandef.chan; 812 813 rc = wil_cfg80211_mgmt_tx(wiphy, wdev, ¶ms, NULL); 814 815 kfree(frame); 816 wil_info(wil, "%s() -> %d\n", __func__, rc); 817 818 return len; 819 } 820 821 static const struct file_operations fops_txmgmt = { 822 .write = wil_write_file_txmgmt, 823 .open = simple_open, 824 }; 825 826 /* Write WMI command (w/o mbox header) to this file to send it 827 * WMI starts from wil6210_mbox_hdr_wmi header 828 */ 829 static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf, 830 size_t len, loff_t *ppos) 831 { 832 struct wil6210_priv *wil = file->private_data; 833 struct wmi_cmd_hdr *wmi; 834 void *cmd; 835 int cmdlen = len - sizeof(struct wmi_cmd_hdr); 836 u16 cmdid; 837 int rc, rc1; 838 839 if (cmdlen < 0) 840 return -EINVAL; 841 842 wmi = kmalloc(len, GFP_KERNEL); 843 if (!wmi) 844 return -ENOMEM; 845 846 rc = simple_write_to_buffer(wmi, len, ppos, buf, len); 847 if (rc < 0) { 848 kfree(wmi); 849 return rc; 850 } 851 852 cmd = (cmdlen > 0) ? &wmi[1] : NULL; 853 cmdid = le16_to_cpu(wmi->command_id); 854 855 rc1 = wmi_send(wil, cmdid, cmd, cmdlen); 856 kfree(wmi); 857 858 wil_info(wil, "%s(0x%04x[%d]) -> %d\n", __func__, cmdid, cmdlen, rc1); 859 860 return rc; 861 } 862 863 static const struct file_operations fops_wmi = { 864 .write = wil_write_file_wmi, 865 .open = simple_open, 866 }; 867 868 static void wil_seq_print_skb(struct seq_file *s, struct sk_buff *skb) 869 { 870 int i = 0; 871 int len = skb_headlen(skb); 872 void *p = skb->data; 873 int nr_frags = skb_shinfo(skb)->nr_frags; 874 875 seq_printf(s, " len = %d\n", len); 876 wil_seq_hexdump(s, p, len, " : "); 877 878 if (nr_frags) { 879 seq_printf(s, " nr_frags = %d\n", nr_frags); 880 for (i = 0; i < nr_frags; i++) { 881 const struct skb_frag_struct *frag = 882 &skb_shinfo(skb)->frags[i]; 883 884 len = skb_frag_size(frag); 885 p = skb_frag_address_safe(frag); 886 seq_printf(s, " [%2d] : len = %d\n", i, len); 887 wil_seq_hexdump(s, p, len, " : "); 888 } 889 } 890 } 891 892 /*---------Tx/Rx descriptor------------*/ 893 static int wil_txdesc_debugfs_show(struct seq_file *s, void *data) 894 { 895 struct wil6210_priv *wil = s->private; 896 struct vring *vring; 897 bool tx = (dbg_vring_index < WIL6210_MAX_TX_RINGS); 898 899 vring = tx ? &wil->vring_tx[dbg_vring_index] : &wil->vring_rx; 900 901 if (!vring->va) { 902 if (tx) 903 seq_printf(s, "No Tx[%2d] VRING\n", dbg_vring_index); 904 else 905 seq_puts(s, "No Rx VRING\n"); 906 return 0; 907 } 908 909 if (dbg_txdesc_index < vring->size) { 910 /* use struct vring_tx_desc for Rx as well, 911 * only field used, .dma.length, is the same 912 */ 913 volatile struct vring_tx_desc *d = 914 &vring->va[dbg_txdesc_index].tx; 915 volatile u32 *u = (volatile u32 *)d; 916 struct sk_buff *skb = vring->ctx[dbg_txdesc_index].skb; 917 918 if (tx) 919 seq_printf(s, "Tx[%2d][%3d] = {\n", dbg_vring_index, 920 dbg_txdesc_index); 921 else 922 seq_printf(s, "Rx[%3d] = {\n", dbg_txdesc_index); 923 seq_printf(s, " MAC = 0x%08x 0x%08x 0x%08x 0x%08x\n", 924 u[0], u[1], u[2], u[3]); 925 seq_printf(s, " DMA = 0x%08x 0x%08x 0x%08x 0x%08x\n", 926 u[4], u[5], u[6], u[7]); 927 seq_printf(s, " SKB = 0x%p\n", skb); 928 929 if (skb) { 930 skb_get(skb); 931 wil_seq_print_skb(s, skb); 932 kfree_skb(skb); 933 } 934 seq_puts(s, "}\n"); 935 } else { 936 if (tx) 937 seq_printf(s, "[%2d] TxDesc index (%d) >= size (%d)\n", 938 dbg_vring_index, dbg_txdesc_index, 939 vring->size); 940 else 941 seq_printf(s, "RxDesc index (%d) >= size (%d)\n", 942 dbg_txdesc_index, vring->size); 943 } 944 945 return 0; 946 } 947 948 static int wil_txdesc_seq_open(struct inode *inode, struct file *file) 949 { 950 return single_open(file, wil_txdesc_debugfs_show, inode->i_private); 951 } 952 953 static const struct file_operations fops_txdesc = { 954 .open = wil_txdesc_seq_open, 955 .release = single_release, 956 .read = seq_read, 957 .llseek = seq_lseek, 958 }; 959 960 /*---------beamforming------------*/ 961 static char *wil_bfstatus_str(u32 status) 962 { 963 switch (status) { 964 case 0: 965 return "Failed"; 966 case 1: 967 return "OK"; 968 case 2: 969 return "Retrying"; 970 default: 971 return "??"; 972 } 973 } 974 975 static bool is_all_zeros(void * const x_, size_t sz) 976 { 977 /* if reply is all-0, ignore this CID */ 978 u32 *x = x_; 979 int n; 980 981 for (n = 0; n < sz / sizeof(*x); n++) 982 if (x[n]) 983 return false; 984 985 return true; 986 } 987 988 static int wil_bf_debugfs_show(struct seq_file *s, void *data) 989 { 990 int rc; 991 int i; 992 struct wil6210_priv *wil = s->private; 993 struct wmi_notify_req_cmd cmd = { 994 .interval_usec = 0, 995 }; 996 struct { 997 struct wmi_cmd_hdr wmi; 998 struct wmi_notify_req_done_event evt; 999 } __packed reply; 1000 1001 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 1002 u32 status; 1003 1004 cmd.cid = i; 1005 rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, &cmd, sizeof(cmd), 1006 WMI_NOTIFY_REQ_DONE_EVENTID, &reply, 1007 sizeof(reply), 20); 1008 /* if reply is all-0, ignore this CID */ 1009 if (rc || is_all_zeros(&reply.evt, sizeof(reply.evt))) 1010 continue; 1011 1012 status = le32_to_cpu(reply.evt.status); 1013 seq_printf(s, "CID %d {\n" 1014 " TSF = 0x%016llx\n" 1015 " TxMCS = %2d TxTpt = %4d\n" 1016 " SQI = %4d\n" 1017 " Status = 0x%08x %s\n" 1018 " Sectors(rx:tx) my %2d:%2d peer %2d:%2d\n" 1019 " Goodput(rx:tx) %4d:%4d\n" 1020 "}\n", 1021 i, 1022 le64_to_cpu(reply.evt.tsf), 1023 le16_to_cpu(reply.evt.bf_mcs), 1024 le32_to_cpu(reply.evt.tx_tpt), 1025 reply.evt.sqi, 1026 status, wil_bfstatus_str(status), 1027 le16_to_cpu(reply.evt.my_rx_sector), 1028 le16_to_cpu(reply.evt.my_tx_sector), 1029 le16_to_cpu(reply.evt.other_rx_sector), 1030 le16_to_cpu(reply.evt.other_tx_sector), 1031 le32_to_cpu(reply.evt.rx_goodput), 1032 le32_to_cpu(reply.evt.tx_goodput)); 1033 } 1034 return 0; 1035 } 1036 1037 static int wil_bf_seq_open(struct inode *inode, struct file *file) 1038 { 1039 return single_open(file, wil_bf_debugfs_show, inode->i_private); 1040 } 1041 1042 static const struct file_operations fops_bf = { 1043 .open = wil_bf_seq_open, 1044 .release = single_release, 1045 .read = seq_read, 1046 .llseek = seq_lseek, 1047 }; 1048 1049 /*---------SSID------------*/ 1050 static ssize_t wil_read_file_ssid(struct file *file, char __user *user_buf, 1051 size_t count, loff_t *ppos) 1052 { 1053 struct wil6210_priv *wil = file->private_data; 1054 struct wireless_dev *wdev = wil_to_wdev(wil); 1055 1056 return simple_read_from_buffer(user_buf, count, ppos, 1057 wdev->ssid, wdev->ssid_len); 1058 } 1059 1060 static ssize_t wil_write_file_ssid(struct file *file, const char __user *buf, 1061 size_t count, loff_t *ppos) 1062 { 1063 struct wil6210_priv *wil = file->private_data; 1064 struct wireless_dev *wdev = wil_to_wdev(wil); 1065 struct net_device *ndev = wil_to_ndev(wil); 1066 1067 if (*ppos != 0) { 1068 wil_err(wil, "Unable to set SSID substring from [%d]\n", 1069 (int)*ppos); 1070 return -EINVAL; 1071 } 1072 1073 if (count > sizeof(wdev->ssid)) { 1074 wil_err(wil, "SSID too long, len = %d\n", (int)count); 1075 return -EINVAL; 1076 } 1077 if (netif_running(ndev)) { 1078 wil_err(wil, "Unable to change SSID on running interface\n"); 1079 return -EINVAL; 1080 } 1081 1082 wdev->ssid_len = count; 1083 return simple_write_to_buffer(wdev->ssid, wdev->ssid_len, ppos, 1084 buf, count); 1085 } 1086 1087 static const struct file_operations fops_ssid = { 1088 .read = wil_read_file_ssid, 1089 .write = wil_write_file_ssid, 1090 .open = simple_open, 1091 }; 1092 1093 /*---------temp------------*/ 1094 static void print_temp(struct seq_file *s, const char *prefix, u32 t) 1095 { 1096 switch (t) { 1097 case 0: 1098 case ~(u32)0: 1099 seq_printf(s, "%s N/A\n", prefix); 1100 break; 1101 default: 1102 seq_printf(s, "%s %d.%03d\n", prefix, t / 1000, t % 1000); 1103 break; 1104 } 1105 } 1106 1107 static int wil_temp_debugfs_show(struct seq_file *s, void *data) 1108 { 1109 struct wil6210_priv *wil = s->private; 1110 u32 t_m, t_r; 1111 int rc = wmi_get_temperature(wil, &t_m, &t_r); 1112 1113 if (rc) { 1114 seq_puts(s, "Failed\n"); 1115 return 0; 1116 } 1117 1118 print_temp(s, "T_mac =", t_m); 1119 print_temp(s, "T_radio =", t_r); 1120 1121 return 0; 1122 } 1123 1124 static int wil_temp_seq_open(struct inode *inode, struct file *file) 1125 { 1126 return single_open(file, wil_temp_debugfs_show, inode->i_private); 1127 } 1128 1129 static const struct file_operations fops_temp = { 1130 .open = wil_temp_seq_open, 1131 .release = single_release, 1132 .read = seq_read, 1133 .llseek = seq_lseek, 1134 }; 1135 1136 /*---------freq------------*/ 1137 static int wil_freq_debugfs_show(struct seq_file *s, void *data) 1138 { 1139 struct wil6210_priv *wil = s->private; 1140 struct wireless_dev *wdev = wil_to_wdev(wil); 1141 u16 freq = wdev->chandef.chan ? wdev->chandef.chan->center_freq : 0; 1142 1143 seq_printf(s, "Freq = %d\n", freq); 1144 1145 return 0; 1146 } 1147 1148 static int wil_freq_seq_open(struct inode *inode, struct file *file) 1149 { 1150 return single_open(file, wil_freq_debugfs_show, inode->i_private); 1151 } 1152 1153 static const struct file_operations fops_freq = { 1154 .open = wil_freq_seq_open, 1155 .release = single_release, 1156 .read = seq_read, 1157 .llseek = seq_lseek, 1158 }; 1159 1160 /*---------link------------*/ 1161 static int wil_link_debugfs_show(struct seq_file *s, void *data) 1162 { 1163 struct wil6210_priv *wil = s->private; 1164 struct station_info sinfo; 1165 int i, rc; 1166 1167 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 1168 struct wil_sta_info *p = &wil->sta[i]; 1169 char *status = "unknown"; 1170 1171 switch (p->status) { 1172 case wil_sta_unused: 1173 status = "unused "; 1174 break; 1175 case wil_sta_conn_pending: 1176 status = "pending "; 1177 break; 1178 case wil_sta_connected: 1179 status = "connected"; 1180 break; 1181 } 1182 seq_printf(s, "[%d] %pM %s\n", i, p->addr, status); 1183 1184 if (p->status == wil_sta_connected) { 1185 rc = wil_cid_fill_sinfo(wil, i, &sinfo); 1186 if (rc) 1187 return rc; 1188 1189 seq_printf(s, " Tx_mcs = %d\n", sinfo.txrate.mcs); 1190 seq_printf(s, " Rx_mcs = %d\n", sinfo.rxrate.mcs); 1191 seq_printf(s, " SQ = %d\n", sinfo.signal); 1192 } 1193 } 1194 1195 return 0; 1196 } 1197 1198 static int wil_link_seq_open(struct inode *inode, struct file *file) 1199 { 1200 return single_open(file, wil_link_debugfs_show, inode->i_private); 1201 } 1202 1203 static const struct file_operations fops_link = { 1204 .open = wil_link_seq_open, 1205 .release = single_release, 1206 .read = seq_read, 1207 .llseek = seq_lseek, 1208 }; 1209 1210 /*---------info------------*/ 1211 static int wil_info_debugfs_show(struct seq_file *s, void *data) 1212 { 1213 struct wil6210_priv *wil = s->private; 1214 struct net_device *ndev = wil_to_ndev(wil); 1215 int is_ac = power_supply_is_system_supplied(); 1216 int rx = atomic_xchg(&wil->isr_count_rx, 0); 1217 int tx = atomic_xchg(&wil->isr_count_tx, 0); 1218 static ulong rxf_old, txf_old; 1219 ulong rxf = ndev->stats.rx_packets; 1220 ulong txf = ndev->stats.tx_packets; 1221 unsigned int i; 1222 1223 /* >0 : AC; 0 : battery; <0 : error */ 1224 seq_printf(s, "AC powered : %d\n", is_ac); 1225 seq_printf(s, "Rx irqs:packets : %8d : %8ld\n", rx, rxf - rxf_old); 1226 seq_printf(s, "Tx irqs:packets : %8d : %8ld\n", tx, txf - txf_old); 1227 rxf_old = rxf; 1228 txf_old = txf; 1229 1230 #define CHECK_QSTATE(x) (state & BIT(__QUEUE_STATE_ ## x)) ? \ 1231 " " __stringify(x) : "" 1232 1233 for (i = 0; i < ndev->num_tx_queues; i++) { 1234 struct netdev_queue *txq = netdev_get_tx_queue(ndev, i); 1235 unsigned long state = txq->state; 1236 1237 seq_printf(s, "Tx queue[%i] state : 0x%lx%s%s%s\n", i, state, 1238 CHECK_QSTATE(DRV_XOFF), 1239 CHECK_QSTATE(STACK_XOFF), 1240 CHECK_QSTATE(FROZEN) 1241 ); 1242 } 1243 #undef CHECK_QSTATE 1244 return 0; 1245 } 1246 1247 static int wil_info_seq_open(struct inode *inode, struct file *file) 1248 { 1249 return single_open(file, wil_info_debugfs_show, inode->i_private); 1250 } 1251 1252 static const struct file_operations fops_info = { 1253 .open = wil_info_seq_open, 1254 .release = single_release, 1255 .read = seq_read, 1256 .llseek = seq_lseek, 1257 }; 1258 1259 /*---------recovery------------*/ 1260 /* mode = [manual|auto] 1261 * state = [idle|pending|running] 1262 */ 1263 static ssize_t wil_read_file_recovery(struct file *file, char __user *user_buf, 1264 size_t count, loff_t *ppos) 1265 { 1266 struct wil6210_priv *wil = file->private_data; 1267 char buf[80]; 1268 int n; 1269 static const char * const sstate[] = {"idle", "pending", "running"}; 1270 1271 n = snprintf(buf, sizeof(buf), "mode = %s\nstate = %s\n", 1272 no_fw_recovery ? "manual" : "auto", 1273 sstate[wil->recovery_state]); 1274 1275 n = min_t(int, n, sizeof(buf)); 1276 1277 return simple_read_from_buffer(user_buf, count, ppos, 1278 buf, n); 1279 } 1280 1281 static ssize_t wil_write_file_recovery(struct file *file, 1282 const char __user *buf_, 1283 size_t count, loff_t *ppos) 1284 { 1285 struct wil6210_priv *wil = file->private_data; 1286 static const char run_command[] = "run"; 1287 char buf[sizeof(run_command) + 1]; /* to detect "runx" */ 1288 ssize_t rc; 1289 1290 if (wil->recovery_state != fw_recovery_pending) { 1291 wil_err(wil, "No recovery pending\n"); 1292 return -EINVAL; 1293 } 1294 1295 if (*ppos != 0) { 1296 wil_err(wil, "Offset [%d]\n", (int)*ppos); 1297 return -EINVAL; 1298 } 1299 1300 if (count > sizeof(buf)) { 1301 wil_err(wil, "Input too long, len = %d\n", (int)count); 1302 return -EINVAL; 1303 } 1304 1305 rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, buf_, count); 1306 if (rc < 0) 1307 return rc; 1308 1309 buf[rc] = '\0'; 1310 if (0 == strcmp(buf, run_command)) 1311 wil_set_recovery_state(wil, fw_recovery_running); 1312 else 1313 wil_err(wil, "Bad recovery command \"%s\"\n", buf); 1314 1315 return rc; 1316 } 1317 1318 static const struct file_operations fops_recovery = { 1319 .read = wil_read_file_recovery, 1320 .write = wil_write_file_recovery, 1321 .open = simple_open, 1322 }; 1323 1324 /*---------Station matrix------------*/ 1325 static void wil_print_rxtid(struct seq_file *s, struct wil_tid_ampdu_rx *r) 1326 { 1327 int i; 1328 u16 index = ((r->head_seq_num - r->ssn) & 0xfff) % r->buf_size; 1329 unsigned long long drop_dup = r->drop_dup, drop_old = r->drop_old; 1330 1331 seq_printf(s, "([%2d] %3d TU) 0x%03x [", r->buf_size, r->timeout, 1332 r->head_seq_num); 1333 for (i = 0; i < r->buf_size; i++) { 1334 if (i == index) 1335 seq_printf(s, "%c", r->reorder_buf[i] ? 'O' : '|'); 1336 else 1337 seq_printf(s, "%c", r->reorder_buf[i] ? '*' : '_'); 1338 } 1339 seq_printf(s, 1340 "] total %llu drop %llu (dup %llu + old %llu) last 0x%03x\n", 1341 r->total, drop_dup + drop_old, drop_dup, drop_old, 1342 r->ssn_last_drop); 1343 } 1344 1345 static void wil_print_rxtid_crypto(struct seq_file *s, int tid, 1346 struct wil_tid_crypto_rx *c) 1347 { 1348 int i; 1349 1350 for (i = 0; i < 4; i++) { 1351 struct wil_tid_crypto_rx_single *cc = &c->key_id[i]; 1352 1353 if (cc->key_set) 1354 goto has_keys; 1355 } 1356 return; 1357 1358 has_keys: 1359 if (tid < WIL_STA_TID_NUM) 1360 seq_printf(s, " [%2d] PN", tid); 1361 else 1362 seq_puts(s, " [GR] PN"); 1363 1364 for (i = 0; i < 4; i++) { 1365 struct wil_tid_crypto_rx_single *cc = &c->key_id[i]; 1366 1367 seq_printf(s, " [%i%s]%6phN", i, cc->key_set ? "+" : "-", 1368 cc->pn); 1369 } 1370 seq_puts(s, "\n"); 1371 } 1372 1373 static int wil_sta_debugfs_show(struct seq_file *s, void *data) 1374 __acquires(&p->tid_rx_lock) __releases(&p->tid_rx_lock) 1375 { 1376 struct wil6210_priv *wil = s->private; 1377 int i, tid, mcs; 1378 1379 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 1380 struct wil_sta_info *p = &wil->sta[i]; 1381 char *status = "unknown"; 1382 1383 switch (p->status) { 1384 case wil_sta_unused: 1385 status = "unused "; 1386 break; 1387 case wil_sta_conn_pending: 1388 status = "pending "; 1389 break; 1390 case wil_sta_connected: 1391 status = "connected"; 1392 break; 1393 } 1394 seq_printf(s, "[%d] %pM %s\n", i, p->addr, status); 1395 1396 if (p->status == wil_sta_connected) { 1397 spin_lock_bh(&p->tid_rx_lock); 1398 for (tid = 0; tid < WIL_STA_TID_NUM; tid++) { 1399 struct wil_tid_ampdu_rx *r = p->tid_rx[tid]; 1400 struct wil_tid_crypto_rx *c = 1401 &p->tid_crypto_rx[tid]; 1402 1403 if (r) { 1404 seq_printf(s, " [%2d] ", tid); 1405 wil_print_rxtid(s, r); 1406 } 1407 1408 wil_print_rxtid_crypto(s, tid, c); 1409 } 1410 wil_print_rxtid_crypto(s, WIL_STA_TID_NUM, 1411 &p->group_crypto_rx); 1412 spin_unlock_bh(&p->tid_rx_lock); 1413 seq_printf(s, 1414 "Rx invalid frame: non-data %lu, short %lu, large %lu, replay %lu\n", 1415 p->stats.rx_non_data_frame, 1416 p->stats.rx_short_frame, 1417 p->stats.rx_large_frame, 1418 p->stats.rx_replay); 1419 1420 seq_puts(s, "Rx/MCS:"); 1421 for (mcs = 0; mcs < ARRAY_SIZE(p->stats.rx_per_mcs); 1422 mcs++) 1423 seq_printf(s, " %lld", 1424 p->stats.rx_per_mcs[mcs]); 1425 seq_puts(s, "\n"); 1426 } 1427 } 1428 1429 return 0; 1430 } 1431 1432 static int wil_sta_seq_open(struct inode *inode, struct file *file) 1433 { 1434 return single_open(file, wil_sta_debugfs_show, inode->i_private); 1435 } 1436 1437 static const struct file_operations fops_sta = { 1438 .open = wil_sta_seq_open, 1439 .release = single_release, 1440 .read = seq_read, 1441 .llseek = seq_lseek, 1442 }; 1443 1444 static ssize_t wil_read_file_led_cfg(struct file *file, char __user *user_buf, 1445 size_t count, loff_t *ppos) 1446 { 1447 char buf[80]; 1448 int n; 1449 1450 n = snprintf(buf, sizeof(buf), 1451 "led_id is set to %d, echo 1 to enable, 0 to disable\n", 1452 led_id); 1453 1454 n = min_t(int, n, sizeof(buf)); 1455 1456 return simple_read_from_buffer(user_buf, count, ppos, 1457 buf, n); 1458 } 1459 1460 static ssize_t wil_write_file_led_cfg(struct file *file, 1461 const char __user *buf_, 1462 size_t count, loff_t *ppos) 1463 { 1464 struct wil6210_priv *wil = file->private_data; 1465 int val; 1466 int rc; 1467 1468 rc = kstrtoint_from_user(buf_, count, 0, &val); 1469 if (rc) { 1470 wil_err(wil, "Invalid argument\n"); 1471 return rc; 1472 } 1473 1474 wil_info(wil, "%s led %d\n", val ? "Enabling" : "Disabling", led_id); 1475 rc = wmi_led_cfg(wil, val); 1476 if (rc) { 1477 wil_info(wil, "%s led %d failed\n", 1478 val ? "Enabling" : "Disabling", led_id); 1479 return rc; 1480 } 1481 1482 return count; 1483 } 1484 1485 static const struct file_operations fops_led_cfg = { 1486 .read = wil_read_file_led_cfg, 1487 .write = wil_write_file_led_cfg, 1488 .open = simple_open, 1489 }; 1490 1491 /* led_blink_time, write: 1492 * "<blink_on_slow> <blink_off_slow> <blink_on_med> <blink_off_med> <blink_on_fast> <blink_off_fast> 1493 */ 1494 static ssize_t wil_write_led_blink_time(struct file *file, 1495 const char __user *buf, 1496 size_t len, loff_t *ppos) 1497 { 1498 int rc; 1499 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 1500 1501 if (!kbuf) 1502 return -ENOMEM; 1503 1504 rc = simple_write_to_buffer(kbuf, len, ppos, buf, len); 1505 if (rc != len) { 1506 kfree(kbuf); 1507 return rc >= 0 ? -EIO : rc; 1508 } 1509 1510 kbuf[len] = '\0'; 1511 rc = sscanf(kbuf, "%d %d %d %d %d %d", 1512 &led_blink_time[WIL_LED_TIME_SLOW].on_ms, 1513 &led_blink_time[WIL_LED_TIME_SLOW].off_ms, 1514 &led_blink_time[WIL_LED_TIME_MED].on_ms, 1515 &led_blink_time[WIL_LED_TIME_MED].off_ms, 1516 &led_blink_time[WIL_LED_TIME_FAST].on_ms, 1517 &led_blink_time[WIL_LED_TIME_FAST].off_ms); 1518 kfree(kbuf); 1519 1520 if (rc < 0) 1521 return rc; 1522 if (rc < 6) 1523 return -EINVAL; 1524 1525 return len; 1526 } 1527 1528 static ssize_t wil_read_led_blink_time(struct file *file, char __user *user_buf, 1529 size_t count, loff_t *ppos) 1530 { 1531 static char text[400]; 1532 1533 snprintf(text, sizeof(text), 1534 "To set led blink on/off time variables write:\n" 1535 "<blink_on_slow> <blink_off_slow> <blink_on_med> " 1536 "<blink_off_med> <blink_on_fast> <blink_off_fast>\n" 1537 "The current values are:\n" 1538 "%d %d %d %d %d %d\n", 1539 led_blink_time[WIL_LED_TIME_SLOW].on_ms, 1540 led_blink_time[WIL_LED_TIME_SLOW].off_ms, 1541 led_blink_time[WIL_LED_TIME_MED].on_ms, 1542 led_blink_time[WIL_LED_TIME_MED].off_ms, 1543 led_blink_time[WIL_LED_TIME_FAST].on_ms, 1544 led_blink_time[WIL_LED_TIME_FAST].off_ms); 1545 1546 return simple_read_from_buffer(user_buf, count, ppos, text, 1547 sizeof(text)); 1548 } 1549 1550 static const struct file_operations fops_led_blink_time = { 1551 .read = wil_read_led_blink_time, 1552 .write = wil_write_led_blink_time, 1553 .open = simple_open, 1554 }; 1555 1556 /*----------------*/ 1557 static void wil6210_debugfs_init_blobs(struct wil6210_priv *wil, 1558 struct dentry *dbg) 1559 { 1560 int i; 1561 char name[32]; 1562 1563 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) { 1564 struct wil_blob_wrapper *wil_blob = &wil->blobs[i]; 1565 struct debugfs_blob_wrapper *blob = &wil_blob->blob; 1566 const struct fw_map *map = &fw_mapping[i]; 1567 1568 if (!map->name) 1569 continue; 1570 1571 wil_blob->wil = wil; 1572 blob->data = (void * __force)wil->csr + HOSTADDR(map->host); 1573 blob->size = map->to - map->from; 1574 snprintf(name, sizeof(name), "blob_%s", map->name); 1575 wil_debugfs_create_ioblob(name, S_IRUGO, dbg, wil_blob); 1576 } 1577 } 1578 1579 /* misc files */ 1580 static const struct { 1581 const char *name; 1582 umode_t mode; 1583 const struct file_operations *fops; 1584 } dbg_files[] = { 1585 {"mbox", S_IRUGO, &fops_mbox}, 1586 {"vrings", S_IRUGO, &fops_vring}, 1587 {"stations", S_IRUGO, &fops_sta}, 1588 {"desc", S_IRUGO, &fops_txdesc}, 1589 {"bf", S_IRUGO, &fops_bf}, 1590 {"ssid", S_IRUGO | S_IWUSR, &fops_ssid}, 1591 {"mem_val", S_IRUGO, &fops_memread}, 1592 {"reset", S_IWUSR, &fops_reset}, 1593 {"rxon", S_IWUSR, &fops_rxon}, 1594 {"tx_mgmt", S_IWUSR, &fops_txmgmt}, 1595 {"wmi_send", S_IWUSR, &fops_wmi}, 1596 {"back", S_IRUGO | S_IWUSR, &fops_back}, 1597 {"pmccfg", S_IRUGO | S_IWUSR, &fops_pmccfg}, 1598 {"pmcdata", S_IRUGO, &fops_pmcdata}, 1599 {"temp", S_IRUGO, &fops_temp}, 1600 {"freq", S_IRUGO, &fops_freq}, 1601 {"link", S_IRUGO, &fops_link}, 1602 {"info", S_IRUGO, &fops_info}, 1603 {"recovery", S_IRUGO | S_IWUSR, &fops_recovery}, 1604 {"led_cfg", S_IRUGO | S_IWUSR, &fops_led_cfg}, 1605 {"led_blink_time", S_IRUGO | S_IWUSR, &fops_led_blink_time}, 1606 }; 1607 1608 static void wil6210_debugfs_init_files(struct wil6210_priv *wil, 1609 struct dentry *dbg) 1610 { 1611 int i; 1612 1613 for (i = 0; i < ARRAY_SIZE(dbg_files); i++) 1614 debugfs_create_file(dbg_files[i].name, dbg_files[i].mode, dbg, 1615 wil, dbg_files[i].fops); 1616 } 1617 1618 /* interrupt control blocks */ 1619 static const struct { 1620 const char *name; 1621 u32 icr_off; 1622 } dbg_icr[] = { 1623 {"USER_ICR", HOSTADDR(RGF_USER_USER_ICR)}, 1624 {"DMA_EP_TX_ICR", HOSTADDR(RGF_DMA_EP_TX_ICR)}, 1625 {"DMA_EP_RX_ICR", HOSTADDR(RGF_DMA_EP_RX_ICR)}, 1626 {"DMA_EP_MISC_ICR", HOSTADDR(RGF_DMA_EP_MISC_ICR)}, 1627 }; 1628 1629 static void wil6210_debugfs_init_isr(struct wil6210_priv *wil, 1630 struct dentry *dbg) 1631 { 1632 int i; 1633 1634 for (i = 0; i < ARRAY_SIZE(dbg_icr); i++) 1635 wil6210_debugfs_create_ISR(wil, dbg_icr[i].name, dbg, 1636 dbg_icr[i].icr_off); 1637 } 1638 1639 #define WIL_FIELD(name, mode, type) { __stringify(name), mode, \ 1640 offsetof(struct wil6210_priv, name), type} 1641 1642 /* fields in struct wil6210_priv */ 1643 static const struct dbg_off dbg_wil_off[] = { 1644 WIL_FIELD(privacy, S_IRUGO, doff_u32), 1645 WIL_FIELD(status[0], S_IRUGO | S_IWUSR, doff_ulong), 1646 WIL_FIELD(fw_version, S_IRUGO, doff_u32), 1647 WIL_FIELD(hw_version, S_IRUGO, doff_x32), 1648 WIL_FIELD(recovery_count, S_IRUGO, doff_u32), 1649 WIL_FIELD(ap_isolate, S_IRUGO, doff_u32), 1650 WIL_FIELD(discovery_mode, S_IRUGO | S_IWUSR, doff_u8), 1651 {}, 1652 }; 1653 1654 static const struct dbg_off dbg_wil_regs[] = { 1655 {"RGF_MAC_MTRL_COUNTER_0", S_IRUGO, HOSTADDR(RGF_MAC_MTRL_COUNTER_0), 1656 doff_io32}, 1657 {"RGF_USER_USAGE_1", S_IRUGO, HOSTADDR(RGF_USER_USAGE_1), doff_io32}, 1658 {}, 1659 }; 1660 1661 /* static parameters */ 1662 static const struct dbg_off dbg_statics[] = { 1663 {"desc_index", S_IRUGO | S_IWUSR, (ulong)&dbg_txdesc_index, doff_u32}, 1664 {"vring_index", S_IRUGO | S_IWUSR, (ulong)&dbg_vring_index, doff_u32}, 1665 {"mem_addr", S_IRUGO | S_IWUSR, (ulong)&mem_addr, doff_u32}, 1666 {"vring_idle_trsh", S_IRUGO | S_IWUSR, (ulong)&vring_idle_trsh, 1667 doff_u32}, 1668 {"led_polarity", S_IRUGO | S_IWUSR, (ulong)&led_polarity, doff_u8}, 1669 {}, 1670 }; 1671 1672 int wil6210_debugfs_init(struct wil6210_priv *wil) 1673 { 1674 struct dentry *dbg = wil->debug = debugfs_create_dir(WIL_NAME, 1675 wil_to_wiphy(wil)->debugfsdir); 1676 1677 if (IS_ERR_OR_NULL(dbg)) 1678 return -ENODEV; 1679 1680 wil_pmc_init(wil); 1681 1682 wil6210_debugfs_init_files(wil, dbg); 1683 wil6210_debugfs_init_isr(wil, dbg); 1684 wil6210_debugfs_init_blobs(wil, dbg); 1685 wil6210_debugfs_init_offset(wil, dbg, wil, dbg_wil_off); 1686 wil6210_debugfs_init_offset(wil, dbg, (void * __force)wil->csr, 1687 dbg_wil_regs); 1688 wil6210_debugfs_init_offset(wil, dbg, NULL, dbg_statics); 1689 1690 wil6210_debugfs_create_pseudo_ISR(wil, dbg); 1691 1692 wil6210_debugfs_create_ITR_CNT(wil, dbg); 1693 1694 return 0; 1695 } 1696 1697 void wil6210_debugfs_remove(struct wil6210_priv *wil) 1698 { 1699 debugfs_remove_recursive(wil->debug); 1700 wil->debug = NULL; 1701 1702 /* free pmc memory without sending command to fw, as it will 1703 * be reset on the way down anyway 1704 */ 1705 wil_pmc_free(wil, false); 1706 } 1707