1 /* 2 * Copyright (c) 2012 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 "txrx.h" 26 27 /* Nasty hack. Better have per device instances */ 28 static u32 mem_addr; 29 static u32 dbg_txdesc_index; 30 static u32 dbg_vring_index; /* 24+ for Rx, 0..23 for Tx */ 31 32 static void wil_print_vring(struct seq_file *s, struct wil6210_priv *wil, 33 const char *name, struct vring *vring, 34 char _s, char _h) 35 { 36 void __iomem *x = wmi_addr(wil, vring->hwtail); 37 38 seq_printf(s, "VRING %s = {\n", name); 39 seq_printf(s, " pa = %pad\n", &vring->pa); 40 seq_printf(s, " va = 0x%p\n", vring->va); 41 seq_printf(s, " size = %d\n", vring->size); 42 seq_printf(s, " swtail = %d\n", vring->swtail); 43 seq_printf(s, " swhead = %d\n", vring->swhead); 44 seq_printf(s, " hwtail = [0x%08x] -> ", vring->hwtail); 45 if (x) 46 seq_printf(s, "0x%08x\n", ioread32(x)); 47 else 48 seq_printf(s, "???\n"); 49 50 if (vring->va && (vring->size < 1025)) { 51 uint i; 52 for (i = 0; i < vring->size; i++) { 53 volatile struct vring_tx_desc *d = &vring->va[i].tx; 54 if ((i % 64) == 0 && (i != 0)) 55 seq_printf(s, "\n"); 56 seq_printf(s, "%c", (d->dma.status & BIT(0)) ? 57 _s : (vring->ctx[i].skb ? _h : 'h')); 58 } 59 seq_printf(s, "\n"); 60 } 61 seq_printf(s, "}\n"); 62 } 63 64 static int wil_vring_debugfs_show(struct seq_file *s, void *data) 65 { 66 uint i; 67 struct wil6210_priv *wil = s->private; 68 69 wil_print_vring(s, wil, "rx", &wil->vring_rx, 'S', '_'); 70 71 for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) { 72 struct vring *vring = &(wil->vring_tx[i]); 73 struct vring_tx_data *txdata = &wil->vring_tx_data[i]; 74 75 if (vring->va) { 76 int cid = wil->vring2cid_tid[i][0]; 77 int tid = wil->vring2cid_tid[i][1]; 78 u32 swhead = vring->swhead; 79 u32 swtail = vring->swtail; 80 int used = (vring->size + swhead - swtail) 81 % vring->size; 82 int avail = vring->size - used - 1; 83 char name[10]; 84 /* performance monitoring */ 85 cycles_t now = get_cycles(); 86 cycles_t idle = txdata->idle * 100; 87 cycles_t total = now - txdata->begin; 88 89 do_div(idle, total); 90 txdata->begin = now; 91 txdata->idle = 0ULL; 92 93 snprintf(name, sizeof(name), "tx_%2d", i); 94 95 seq_printf(s, "\n%pM CID %d TID %d [%3d|%3d] idle %3d%%\n", 96 wil->sta[cid].addr, cid, tid, used, avail, 97 (int)idle); 98 99 wil_print_vring(s, wil, name, vring, '_', 'H'); 100 } 101 } 102 103 return 0; 104 } 105 106 static int wil_vring_seq_open(struct inode *inode, struct file *file) 107 { 108 return single_open(file, wil_vring_debugfs_show, inode->i_private); 109 } 110 111 static const struct file_operations fops_vring = { 112 .open = wil_vring_seq_open, 113 .release = single_release, 114 .read = seq_read, 115 .llseek = seq_lseek, 116 }; 117 118 static void wil_print_ring(struct seq_file *s, const char *prefix, 119 void __iomem *off) 120 { 121 struct wil6210_priv *wil = s->private; 122 struct wil6210_mbox_ring r; 123 int rsize; 124 uint i; 125 126 wil_memcpy_fromio_32(&r, off, sizeof(r)); 127 wil_mbox_ring_le2cpus(&r); 128 /* 129 * we just read memory block from NIC. This memory may be 130 * garbage. Check validity before using it. 131 */ 132 rsize = r.size / sizeof(struct wil6210_mbox_ring_desc); 133 134 seq_printf(s, "ring %s = {\n", prefix); 135 seq_printf(s, " base = 0x%08x\n", r.base); 136 seq_printf(s, " size = 0x%04x bytes -> %d entries\n", r.size, rsize); 137 seq_printf(s, " tail = 0x%08x\n", r.tail); 138 seq_printf(s, " head = 0x%08x\n", r.head); 139 seq_printf(s, " entry size = %d\n", r.entry_size); 140 141 if (r.size % sizeof(struct wil6210_mbox_ring_desc)) { 142 seq_printf(s, " ??? size is not multiple of %zd, garbage?\n", 143 sizeof(struct wil6210_mbox_ring_desc)); 144 goto out; 145 } 146 147 if (!wmi_addr(wil, r.base) || 148 !wmi_addr(wil, r.tail) || 149 !wmi_addr(wil, r.head)) { 150 seq_printf(s, " ??? pointers are garbage?\n"); 151 goto out; 152 } 153 154 for (i = 0; i < rsize; i++) { 155 struct wil6210_mbox_ring_desc d; 156 struct wil6210_mbox_hdr hdr; 157 size_t delta = i * sizeof(d); 158 void __iomem *x = wil->csr + HOSTADDR(r.base) + delta; 159 160 wil_memcpy_fromio_32(&d, x, sizeof(d)); 161 162 seq_printf(s, " [%2x] %s %s%s 0x%08x", i, 163 d.sync ? "F" : "E", 164 (r.tail - r.base == delta) ? "t" : " ", 165 (r.head - r.base == delta) ? "h" : " ", 166 le32_to_cpu(d.addr)); 167 if (0 == wmi_read_hdr(wil, d.addr, &hdr)) { 168 u16 len = le16_to_cpu(hdr.len); 169 seq_printf(s, " -> %04x %04x %04x %02x\n", 170 le16_to_cpu(hdr.seq), len, 171 le16_to_cpu(hdr.type), hdr.flags); 172 if (len <= MAX_MBOXITEM_SIZE) { 173 int n = 0; 174 char printbuf[16 * 3 + 2]; 175 unsigned char databuf[MAX_MBOXITEM_SIZE]; 176 void __iomem *src = wmi_buffer(wil, d.addr) + 177 sizeof(struct wil6210_mbox_hdr); 178 /* 179 * No need to check @src for validity - 180 * we already validated @d.addr while 181 * reading header 182 */ 183 wil_memcpy_fromio_32(databuf, src, len); 184 while (n < len) { 185 int l = min(len - n, 16); 186 hex_dump_to_buffer(databuf + n, l, 187 16, 1, printbuf, 188 sizeof(printbuf), 189 false); 190 seq_printf(s, " : %s\n", printbuf); 191 n += l; 192 } 193 } 194 } else { 195 seq_printf(s, "\n"); 196 } 197 } 198 out: 199 seq_printf(s, "}\n"); 200 } 201 202 static int wil_mbox_debugfs_show(struct seq_file *s, void *data) 203 { 204 struct wil6210_priv *wil = s->private; 205 206 wil_print_ring(s, "tx", wil->csr + HOST_MBOX + 207 offsetof(struct wil6210_mbox_ctl, tx)); 208 wil_print_ring(s, "rx", wil->csr + HOST_MBOX + 209 offsetof(struct wil6210_mbox_ctl, rx)); 210 211 return 0; 212 } 213 214 static int wil_mbox_seq_open(struct inode *inode, struct file *file) 215 { 216 return single_open(file, wil_mbox_debugfs_show, inode->i_private); 217 } 218 219 static const struct file_operations fops_mbox = { 220 .open = wil_mbox_seq_open, 221 .release = single_release, 222 .read = seq_read, 223 .llseek = seq_lseek, 224 }; 225 226 static int wil_debugfs_iomem_x32_set(void *data, u64 val) 227 { 228 iowrite32(val, (void __iomem *)data); 229 wmb(); /* make sure write propagated to HW */ 230 231 return 0; 232 } 233 234 static int wil_debugfs_iomem_x32_get(void *data, u64 *val) 235 { 236 *val = ioread32((void __iomem *)data); 237 238 return 0; 239 } 240 241 DEFINE_SIMPLE_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get, 242 wil_debugfs_iomem_x32_set, "0x%08llx\n"); 243 244 static struct dentry *wil_debugfs_create_iomem_x32(const char *name, 245 umode_t mode, 246 struct dentry *parent, 247 void __iomem *value) 248 { 249 return debugfs_create_file(name, mode, parent, (void * __force)value, 250 &fops_iomem_x32); 251 } 252 253 static int wil_debugfs_ulong_set(void *data, u64 val) 254 { 255 *(ulong *)data = val; 256 return 0; 257 } 258 static int wil_debugfs_ulong_get(void *data, u64 *val) 259 { 260 *val = *(ulong *)data; 261 return 0; 262 } 263 DEFINE_SIMPLE_ATTRIBUTE(wil_fops_ulong, wil_debugfs_ulong_get, 264 wil_debugfs_ulong_set, "%llu\n"); 265 266 static struct dentry *wil_debugfs_create_ulong(const char *name, umode_t mode, 267 struct dentry *parent, 268 ulong *value) 269 { 270 return debugfs_create_file(name, mode, parent, value, &wil_fops_ulong); 271 } 272 273 static int wil6210_debugfs_create_ISR(struct wil6210_priv *wil, 274 const char *name, 275 struct dentry *parent, u32 off) 276 { 277 struct dentry *d = debugfs_create_dir(name, parent); 278 279 if (IS_ERR_OR_NULL(d)) 280 return -ENODEV; 281 282 wil_debugfs_create_iomem_x32("ICC", S_IRUGO | S_IWUSR, d, 283 wil->csr + off); 284 wil_debugfs_create_iomem_x32("ICR", S_IRUGO | S_IWUSR, d, 285 wil->csr + off + 4); 286 wil_debugfs_create_iomem_x32("ICM", S_IRUGO | S_IWUSR, d, 287 wil->csr + off + 8); 288 wil_debugfs_create_iomem_x32("ICS", S_IWUSR, d, 289 wil->csr + off + 12); 290 wil_debugfs_create_iomem_x32("IMV", S_IRUGO | S_IWUSR, d, 291 wil->csr + off + 16); 292 wil_debugfs_create_iomem_x32("IMS", S_IWUSR, d, 293 wil->csr + off + 20); 294 wil_debugfs_create_iomem_x32("IMC", S_IWUSR, d, 295 wil->csr + off + 24); 296 297 return 0; 298 } 299 300 static int wil6210_debugfs_create_pseudo_ISR(struct wil6210_priv *wil, 301 struct dentry *parent) 302 { 303 struct dentry *d = debugfs_create_dir("PSEUDO_ISR", parent); 304 305 if (IS_ERR_OR_NULL(d)) 306 return -ENODEV; 307 308 wil_debugfs_create_iomem_x32("CAUSE", S_IRUGO, d, wil->csr + 309 HOSTADDR(RGF_DMA_PSEUDO_CAUSE)); 310 wil_debugfs_create_iomem_x32("MASK_SW", S_IRUGO, d, wil->csr + 311 HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_SW)); 312 wil_debugfs_create_iomem_x32("MASK_FW", S_IRUGO, d, wil->csr + 313 HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_FW)); 314 315 return 0; 316 } 317 318 static int wil6210_debugfs_create_ITR_CNT(struct wil6210_priv *wil, 319 struct dentry *parent) 320 { 321 struct dentry *d = debugfs_create_dir("ITR_CNT", parent); 322 323 if (IS_ERR_OR_NULL(d)) 324 return -ENODEV; 325 326 wil_debugfs_create_iomem_x32("TRSH", S_IRUGO | S_IWUSR, d, wil->csr + 327 HOSTADDR(RGF_DMA_ITR_CNT_TRSH)); 328 wil_debugfs_create_iomem_x32("DATA", S_IRUGO | S_IWUSR, d, wil->csr + 329 HOSTADDR(RGF_DMA_ITR_CNT_DATA)); 330 wil_debugfs_create_iomem_x32("CTL", S_IRUGO | S_IWUSR, d, wil->csr + 331 HOSTADDR(RGF_DMA_ITR_CNT_CRL)); 332 333 return 0; 334 } 335 336 static int wil_memread_debugfs_show(struct seq_file *s, void *data) 337 { 338 struct wil6210_priv *wil = s->private; 339 void __iomem *a = wmi_buffer(wil, cpu_to_le32(mem_addr)); 340 341 if (a) 342 seq_printf(s, "[0x%08x] = 0x%08x\n", mem_addr, ioread32(a)); 343 else 344 seq_printf(s, "[0x%08x] = INVALID\n", mem_addr); 345 346 return 0; 347 } 348 349 static int wil_memread_seq_open(struct inode *inode, struct file *file) 350 { 351 return single_open(file, wil_memread_debugfs_show, inode->i_private); 352 } 353 354 static const struct file_operations fops_memread = { 355 .open = wil_memread_seq_open, 356 .release = single_release, 357 .read = seq_read, 358 .llseek = seq_lseek, 359 }; 360 361 static ssize_t wil_read_file_ioblob(struct file *file, char __user *user_buf, 362 size_t count, loff_t *ppos) 363 { 364 enum { max_count = 4096 }; 365 struct debugfs_blob_wrapper *blob = file->private_data; 366 loff_t pos = *ppos; 367 size_t available = blob->size; 368 void *buf; 369 size_t ret; 370 371 if (pos < 0) 372 return -EINVAL; 373 374 if (pos >= available || !count) 375 return 0; 376 377 if (count > available - pos) 378 count = available - pos; 379 if (count > max_count) 380 count = max_count; 381 382 buf = kmalloc(count, GFP_KERNEL); 383 if (!buf) 384 return -ENOMEM; 385 386 wil_memcpy_fromio_32(buf, (const volatile void __iomem *)blob->data + 387 pos, count); 388 389 ret = copy_to_user(user_buf, buf, count); 390 kfree(buf); 391 if (ret == count) 392 return -EFAULT; 393 394 count -= ret; 395 *ppos = pos + count; 396 397 return count; 398 } 399 400 static const struct file_operations fops_ioblob = { 401 .read = wil_read_file_ioblob, 402 .open = simple_open, 403 .llseek = default_llseek, 404 }; 405 406 static 407 struct dentry *wil_debugfs_create_ioblob(const char *name, 408 umode_t mode, 409 struct dentry *parent, 410 struct debugfs_blob_wrapper *blob) 411 { 412 return debugfs_create_file(name, mode, parent, blob, &fops_ioblob); 413 } 414 /*---reset---*/ 415 static ssize_t wil_write_file_reset(struct file *file, const char __user *buf, 416 size_t len, loff_t *ppos) 417 { 418 struct wil6210_priv *wil = file->private_data; 419 struct net_device *ndev = wil_to_ndev(wil); 420 421 /** 422 * BUG: 423 * this code does NOT sync device state with the rest of system 424 * use with care, debug only!!! 425 */ 426 rtnl_lock(); 427 dev_close(ndev); 428 ndev->flags &= ~IFF_UP; 429 rtnl_unlock(); 430 wil_reset(wil); 431 432 return len; 433 } 434 435 static const struct file_operations fops_reset = { 436 .write = wil_write_file_reset, 437 .open = simple_open, 438 }; 439 /*---write channel 1..4 to rxon for it, 0 to rxoff---*/ 440 static ssize_t wil_write_file_rxon(struct file *file, const char __user *buf, 441 size_t len, loff_t *ppos) 442 { 443 struct wil6210_priv *wil = file->private_data; 444 int rc; 445 long channel; 446 bool on; 447 448 char *kbuf = kmalloc(len + 1, GFP_KERNEL); 449 if (!kbuf) 450 return -ENOMEM; 451 if (copy_from_user(kbuf, buf, len)) { 452 kfree(kbuf); 453 return -EIO; 454 } 455 456 kbuf[len] = '\0'; 457 rc = kstrtol(kbuf, 0, &channel); 458 kfree(kbuf); 459 if (rc) 460 return rc; 461 462 if ((channel < 0) || (channel > 4)) { 463 wil_err(wil, "Invalid channel %ld\n", channel); 464 return -EINVAL; 465 } 466 on = !!channel; 467 468 if (on) { 469 rc = wmi_set_channel(wil, (int)channel); 470 if (rc) 471 return rc; 472 } 473 474 rc = wmi_rxon(wil, on); 475 if (rc) 476 return rc; 477 478 return len; 479 } 480 481 static const struct file_operations fops_rxon = { 482 .write = wil_write_file_rxon, 483 .open = simple_open, 484 }; 485 /*---tx_mgmt---*/ 486 /* Write mgmt frame to this file to send it */ 487 static ssize_t wil_write_file_txmgmt(struct file *file, const char __user *buf, 488 size_t len, loff_t *ppos) 489 { 490 struct wil6210_priv *wil = file->private_data; 491 struct wiphy *wiphy = wil_to_wiphy(wil); 492 struct wireless_dev *wdev = wil_to_wdev(wil); 493 struct cfg80211_mgmt_tx_params params; 494 int rc; 495 496 void *frame = kmalloc(len, GFP_KERNEL); 497 if (!frame) 498 return -ENOMEM; 499 500 if (copy_from_user(frame, buf, len)) 501 return -EIO; 502 503 params.buf = frame; 504 params.len = len; 505 params.chan = wdev->preset_chandef.chan; 506 507 rc = wil_cfg80211_mgmt_tx(wiphy, wdev, ¶ms, NULL); 508 509 kfree(frame); 510 wil_info(wil, "%s() -> %d\n", __func__, rc); 511 512 return len; 513 } 514 515 static const struct file_operations fops_txmgmt = { 516 .write = wil_write_file_txmgmt, 517 .open = simple_open, 518 }; 519 520 /* Write WMI command (w/o mbox header) to this file to send it 521 * WMI starts from wil6210_mbox_hdr_wmi header 522 */ 523 static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf, 524 size_t len, loff_t *ppos) 525 { 526 struct wil6210_priv *wil = file->private_data; 527 struct wil6210_mbox_hdr_wmi *wmi; 528 void *cmd; 529 int cmdlen = len - sizeof(struct wil6210_mbox_hdr_wmi); 530 u16 cmdid; 531 int rc, rc1; 532 533 if (cmdlen <= 0) 534 return -EINVAL; 535 536 wmi = kmalloc(len, GFP_KERNEL); 537 if (!wmi) 538 return -ENOMEM; 539 540 rc = simple_write_to_buffer(wmi, len, ppos, buf, len); 541 if (rc < 0) 542 return rc; 543 544 cmd = &wmi[1]; 545 cmdid = le16_to_cpu(wmi->id); 546 547 rc1 = wmi_send(wil, cmdid, cmd, cmdlen); 548 kfree(wmi); 549 550 wil_info(wil, "%s(0x%04x[%d]) -> %d\n", __func__, cmdid, cmdlen, rc1); 551 552 return rc; 553 } 554 555 static const struct file_operations fops_wmi = { 556 .write = wil_write_file_wmi, 557 .open = simple_open, 558 }; 559 560 static void wil_seq_hexdump(struct seq_file *s, void *p, int len, 561 const char *prefix) 562 { 563 char printbuf[16 * 3 + 2]; 564 int i = 0; 565 while (i < len) { 566 int l = min(len - i, 16); 567 hex_dump_to_buffer(p + i, l, 16, 1, printbuf, 568 sizeof(printbuf), false); 569 seq_printf(s, "%s%s\n", prefix, printbuf); 570 i += l; 571 } 572 } 573 574 static void wil_seq_print_skb(struct seq_file *s, struct sk_buff *skb) 575 { 576 int i = 0; 577 int len = skb_headlen(skb); 578 void *p = skb->data; 579 int nr_frags = skb_shinfo(skb)->nr_frags; 580 581 seq_printf(s, " len = %d\n", len); 582 wil_seq_hexdump(s, p, len, " : "); 583 584 if (nr_frags) { 585 seq_printf(s, " nr_frags = %d\n", nr_frags); 586 for (i = 0; i < nr_frags; i++) { 587 const struct skb_frag_struct *frag = 588 &skb_shinfo(skb)->frags[i]; 589 590 len = skb_frag_size(frag); 591 p = skb_frag_address_safe(frag); 592 seq_printf(s, " [%2d] : len = %d\n", i, len); 593 wil_seq_hexdump(s, p, len, " : "); 594 } 595 } 596 } 597 598 /*---------Tx/Rx descriptor------------*/ 599 static int wil_txdesc_debugfs_show(struct seq_file *s, void *data) 600 { 601 struct wil6210_priv *wil = s->private; 602 struct vring *vring; 603 bool tx = (dbg_vring_index < WIL6210_MAX_TX_RINGS); 604 if (tx) 605 vring = &(wil->vring_tx[dbg_vring_index]); 606 else 607 vring = &wil->vring_rx; 608 609 if (!vring->va) { 610 if (tx) 611 seq_printf(s, "No Tx[%2d] VRING\n", dbg_vring_index); 612 else 613 seq_puts(s, "No Rx VRING\n"); 614 return 0; 615 } 616 617 if (dbg_txdesc_index < vring->size) { 618 /* use struct vring_tx_desc for Rx as well, 619 * only field used, .dma.length, is the same 620 */ 621 volatile struct vring_tx_desc *d = 622 &(vring->va[dbg_txdesc_index].tx); 623 volatile u32 *u = (volatile u32 *)d; 624 struct sk_buff *skb = vring->ctx[dbg_txdesc_index].skb; 625 626 if (tx) 627 seq_printf(s, "Tx[%2d][%3d] = {\n", dbg_vring_index, 628 dbg_txdesc_index); 629 else 630 seq_printf(s, "Rx[%3d] = {\n", dbg_txdesc_index); 631 seq_printf(s, " MAC = 0x%08x 0x%08x 0x%08x 0x%08x\n", 632 u[0], u[1], u[2], u[3]); 633 seq_printf(s, " DMA = 0x%08x 0x%08x 0x%08x 0x%08x\n", 634 u[4], u[5], u[6], u[7]); 635 seq_printf(s, " SKB = 0x%p\n", skb); 636 637 if (skb) { 638 skb_get(skb); 639 wil_seq_print_skb(s, skb); 640 kfree_skb(skb); 641 } 642 seq_printf(s, "}\n"); 643 } else { 644 if (tx) 645 seq_printf(s, "[%2d] TxDesc index (%d) >= size (%d)\n", 646 dbg_vring_index, dbg_txdesc_index, 647 vring->size); 648 else 649 seq_printf(s, "RxDesc index (%d) >= size (%d)\n", 650 dbg_txdesc_index, vring->size); 651 } 652 653 return 0; 654 } 655 656 static int wil_txdesc_seq_open(struct inode *inode, struct file *file) 657 { 658 return single_open(file, wil_txdesc_debugfs_show, inode->i_private); 659 } 660 661 static const struct file_operations fops_txdesc = { 662 .open = wil_txdesc_seq_open, 663 .release = single_release, 664 .read = seq_read, 665 .llseek = seq_lseek, 666 }; 667 668 /*---------beamforming------------*/ 669 static int wil_bf_debugfs_show(struct seq_file *s, void *data) 670 { 671 struct wil6210_priv *wil = s->private; 672 seq_printf(s, 673 "TSF : 0x%016llx\n" 674 "TxMCS : %d\n" 675 "Sectors(rx:tx) my %2d:%2d peer %2d:%2d\n", 676 wil->stats.tsf, wil->stats.bf_mcs, 677 wil->stats.my_rx_sector, wil->stats.my_tx_sector, 678 wil->stats.peer_rx_sector, wil->stats.peer_tx_sector); 679 return 0; 680 } 681 682 static int wil_bf_seq_open(struct inode *inode, struct file *file) 683 { 684 return single_open(file, wil_bf_debugfs_show, inode->i_private); 685 } 686 687 static const struct file_operations fops_bf = { 688 .open = wil_bf_seq_open, 689 .release = single_release, 690 .read = seq_read, 691 .llseek = seq_lseek, 692 }; 693 /*---------SSID------------*/ 694 static ssize_t wil_read_file_ssid(struct file *file, char __user *user_buf, 695 size_t count, loff_t *ppos) 696 { 697 struct wil6210_priv *wil = file->private_data; 698 struct wireless_dev *wdev = wil_to_wdev(wil); 699 700 return simple_read_from_buffer(user_buf, count, ppos, 701 wdev->ssid, wdev->ssid_len); 702 } 703 704 static ssize_t wil_write_file_ssid(struct file *file, const char __user *buf, 705 size_t count, loff_t *ppos) 706 { 707 struct wil6210_priv *wil = file->private_data; 708 struct wireless_dev *wdev = wil_to_wdev(wil); 709 struct net_device *ndev = wil_to_ndev(wil); 710 711 if (*ppos != 0) { 712 wil_err(wil, "Unable to set SSID substring from [%d]\n", 713 (int)*ppos); 714 return -EINVAL; 715 } 716 717 if (count > sizeof(wdev->ssid)) { 718 wil_err(wil, "SSID too long, len = %d\n", (int)count); 719 return -EINVAL; 720 } 721 if (netif_running(ndev)) { 722 wil_err(wil, "Unable to change SSID on running interface\n"); 723 return -EINVAL; 724 } 725 726 wdev->ssid_len = count; 727 return simple_write_to_buffer(wdev->ssid, wdev->ssid_len, ppos, 728 buf, count); 729 } 730 731 static const struct file_operations fops_ssid = { 732 .read = wil_read_file_ssid, 733 .write = wil_write_file_ssid, 734 .open = simple_open, 735 }; 736 737 /*---------temp------------*/ 738 static void print_temp(struct seq_file *s, const char *prefix, u32 t) 739 { 740 switch (t) { 741 case 0: 742 case ~(u32)0: 743 seq_printf(s, "%s N/A\n", prefix); 744 break; 745 default: 746 seq_printf(s, "%s %d.%03d\n", prefix, t / 1000, t % 1000); 747 break; 748 } 749 } 750 751 static int wil_temp_debugfs_show(struct seq_file *s, void *data) 752 { 753 struct wil6210_priv *wil = s->private; 754 u32 t_m, t_r; 755 756 int rc = wmi_get_temperature(wil, &t_m, &t_r); 757 if (rc) { 758 seq_printf(s, "Failed\n"); 759 return 0; 760 } 761 762 print_temp(s, "T_mac =", t_m); 763 print_temp(s, "T_radio =", t_r); 764 765 return 0; 766 } 767 768 static int wil_temp_seq_open(struct inode *inode, struct file *file) 769 { 770 return single_open(file, wil_temp_debugfs_show, inode->i_private); 771 } 772 773 static const struct file_operations fops_temp = { 774 .open = wil_temp_seq_open, 775 .release = single_release, 776 .read = seq_read, 777 .llseek = seq_lseek, 778 }; 779 780 /*---------freq------------*/ 781 static int wil_freq_debugfs_show(struct seq_file *s, void *data) 782 { 783 struct wil6210_priv *wil = s->private; 784 struct wireless_dev *wdev = wil_to_wdev(wil); 785 u16 freq = wdev->chandef.chan ? wdev->chandef.chan->center_freq : 0; 786 787 seq_printf(s, "Freq = %d\n", freq); 788 789 return 0; 790 } 791 792 static int wil_freq_seq_open(struct inode *inode, struct file *file) 793 { 794 return single_open(file, wil_freq_debugfs_show, inode->i_private); 795 } 796 797 static const struct file_operations fops_freq = { 798 .open = wil_freq_seq_open, 799 .release = single_release, 800 .read = seq_read, 801 .llseek = seq_lseek, 802 }; 803 804 /*---------link------------*/ 805 static int wil_link_debugfs_show(struct seq_file *s, void *data) 806 { 807 struct wil6210_priv *wil = s->private; 808 struct station_info sinfo; 809 int i, rc; 810 811 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 812 struct wil_sta_info *p = &wil->sta[i]; 813 char *status = "unknown"; 814 switch (p->status) { 815 case wil_sta_unused: 816 status = "unused "; 817 break; 818 case wil_sta_conn_pending: 819 status = "pending "; 820 break; 821 case wil_sta_connected: 822 status = "connected"; 823 break; 824 } 825 seq_printf(s, "[%d] %pM %s%s\n", i, p->addr, status, 826 (p->data_port_open ? " data_port_open" : "")); 827 828 if (p->status == wil_sta_connected) { 829 rc = wil_cid_fill_sinfo(wil, i, &sinfo); 830 if (rc) 831 return rc; 832 833 seq_printf(s, " Tx_mcs = %d\n", sinfo.txrate.mcs); 834 seq_printf(s, " Rx_mcs = %d\n", sinfo.rxrate.mcs); 835 seq_printf(s, " SQ = %d\n", sinfo.signal); 836 } 837 } 838 839 return 0; 840 } 841 842 static int wil_link_seq_open(struct inode *inode, struct file *file) 843 { 844 return single_open(file, wil_link_debugfs_show, inode->i_private); 845 } 846 847 static const struct file_operations fops_link = { 848 .open = wil_link_seq_open, 849 .release = single_release, 850 .read = seq_read, 851 .llseek = seq_lseek, 852 }; 853 854 /*---------info------------*/ 855 static int wil_info_debugfs_show(struct seq_file *s, void *data) 856 { 857 struct wil6210_priv *wil = s->private; 858 struct net_device *ndev = wil_to_ndev(wil); 859 int is_ac = power_supply_is_system_supplied(); 860 int rx = atomic_xchg(&wil->isr_count_rx, 0); 861 int tx = atomic_xchg(&wil->isr_count_tx, 0); 862 static ulong rxf_old, txf_old; 863 ulong rxf = ndev->stats.rx_packets; 864 ulong txf = ndev->stats.tx_packets; 865 unsigned int i; 866 867 /* >0 : AC; 0 : battery; <0 : error */ 868 seq_printf(s, "AC powered : %d\n", is_ac); 869 seq_printf(s, "Rx irqs:packets : %8d : %8ld\n", rx, rxf - rxf_old); 870 seq_printf(s, "Tx irqs:packets : %8d : %8ld\n", tx, txf - txf_old); 871 rxf_old = rxf; 872 txf_old = txf; 873 874 875 #define CHECK_QSTATE(x) (state & BIT(__QUEUE_STATE_ ## x)) ? \ 876 " " __stringify(x) : "" 877 878 for (i = 0; i < ndev->num_tx_queues; i++) { 879 struct netdev_queue *txq = netdev_get_tx_queue(ndev, i); 880 unsigned long state = txq->state; 881 882 seq_printf(s, "Tx queue[%i] state : 0x%lx%s%s%s\n", i, state, 883 CHECK_QSTATE(DRV_XOFF), 884 CHECK_QSTATE(STACK_XOFF), 885 CHECK_QSTATE(FROZEN) 886 ); 887 } 888 #undef CHECK_QSTATE 889 return 0; 890 } 891 892 static int wil_info_seq_open(struct inode *inode, struct file *file) 893 { 894 return single_open(file, wil_info_debugfs_show, inode->i_private); 895 } 896 897 static const struct file_operations fops_info = { 898 .open = wil_info_seq_open, 899 .release = single_release, 900 .read = seq_read, 901 .llseek = seq_lseek, 902 }; 903 904 /*---------Station matrix------------*/ 905 static void wil_print_rxtid(struct seq_file *s, struct wil_tid_ampdu_rx *r) 906 { 907 int i; 908 u16 index = ((r->head_seq_num - r->ssn) & 0xfff) % r->buf_size; 909 seq_printf(s, "0x%03x [", r->head_seq_num); 910 for (i = 0; i < r->buf_size; i++) { 911 if (i == index) 912 seq_printf(s, "%c", r->reorder_buf[i] ? 'O' : '|'); 913 else 914 seq_printf(s, "%c", r->reorder_buf[i] ? '*' : '_'); 915 } 916 seq_printf(s, "] last drop 0x%03x\n", r->ssn_last_drop); 917 } 918 919 static int wil_sta_debugfs_show(struct seq_file *s, void *data) 920 { 921 struct wil6210_priv *wil = s->private; 922 int i, tid; 923 924 for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 925 struct wil_sta_info *p = &wil->sta[i]; 926 char *status = "unknown"; 927 switch (p->status) { 928 case wil_sta_unused: 929 status = "unused "; 930 break; 931 case wil_sta_conn_pending: 932 status = "pending "; 933 break; 934 case wil_sta_connected: 935 status = "connected"; 936 break; 937 } 938 seq_printf(s, "[%d] %pM %s%s\n", i, p->addr, status, 939 (p->data_port_open ? " data_port_open" : "")); 940 941 if (p->status == wil_sta_connected) { 942 for (tid = 0; tid < WIL_STA_TID_NUM; tid++) { 943 struct wil_tid_ampdu_rx *r = p->tid_rx[tid]; 944 if (r) { 945 seq_printf(s, "[%2d] ", tid); 946 wil_print_rxtid(s, r); 947 } 948 } 949 } 950 } 951 952 return 0; 953 } 954 955 static int wil_sta_seq_open(struct inode *inode, struct file *file) 956 { 957 return single_open(file, wil_sta_debugfs_show, inode->i_private); 958 } 959 960 static const struct file_operations fops_sta = { 961 .open = wil_sta_seq_open, 962 .release = single_release, 963 .read = seq_read, 964 .llseek = seq_lseek, 965 }; 966 967 /*----------------*/ 968 static void wil6210_debugfs_init_blobs(struct wil6210_priv *wil, 969 struct dentry *dbg) 970 { 971 int i; 972 char name[32]; 973 974 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) { 975 struct debugfs_blob_wrapper *blob = &wil->blobs[i]; 976 const struct fw_map *map = &fw_mapping[i]; 977 978 if (!map->name) 979 continue; 980 981 blob->data = (void * __force)wil->csr + HOSTADDR(map->host); 982 blob->size = map->to - map->from; 983 snprintf(name, sizeof(name), "blob_%s", map->name); 984 wil_debugfs_create_ioblob(name, S_IRUGO, dbg, blob); 985 } 986 } 987 988 int wil6210_debugfs_init(struct wil6210_priv *wil) 989 { 990 struct dentry *dbg = wil->debug = debugfs_create_dir(WIL_NAME, 991 wil_to_wiphy(wil)->debugfsdir); 992 993 if (IS_ERR_OR_NULL(dbg)) 994 return -ENODEV; 995 996 debugfs_create_file("mbox", S_IRUGO, dbg, wil, &fops_mbox); 997 debugfs_create_file("vrings", S_IRUGO, dbg, wil, &fops_vring); 998 debugfs_create_file("stations", S_IRUGO, dbg, wil, &fops_sta); 999 debugfs_create_file("desc", S_IRUGO, dbg, wil, &fops_txdesc); 1000 debugfs_create_u32("desc_index", S_IRUGO | S_IWUSR, dbg, 1001 &dbg_txdesc_index); 1002 debugfs_create_u32("vring_index", S_IRUGO | S_IWUSR, dbg, 1003 &dbg_vring_index); 1004 1005 debugfs_create_file("bf", S_IRUGO, dbg, wil, &fops_bf); 1006 debugfs_create_file("ssid", S_IRUGO | S_IWUSR, dbg, wil, &fops_ssid); 1007 debugfs_create_u32("secure_pcp", S_IRUGO | S_IWUSR, dbg, 1008 &wil->secure_pcp); 1009 wil_debugfs_create_ulong("status", S_IRUGO | S_IWUSR, dbg, 1010 &wil->status); 1011 debugfs_create_u32("fw_version", S_IRUGO, dbg, &wil->fw_version); 1012 debugfs_create_x32("hw_version", S_IRUGO, dbg, &wil->hw_version); 1013 1014 wil6210_debugfs_create_ISR(wil, "USER_ICR", dbg, 1015 HOSTADDR(RGF_USER_USER_ICR)); 1016 wil6210_debugfs_create_ISR(wil, "DMA_EP_TX_ICR", dbg, 1017 HOSTADDR(RGF_DMA_EP_TX_ICR)); 1018 wil6210_debugfs_create_ISR(wil, "DMA_EP_RX_ICR", dbg, 1019 HOSTADDR(RGF_DMA_EP_RX_ICR)); 1020 wil6210_debugfs_create_ISR(wil, "DMA_EP_MISC_ICR", dbg, 1021 HOSTADDR(RGF_DMA_EP_MISC_ICR)); 1022 wil6210_debugfs_create_pseudo_ISR(wil, dbg); 1023 wil6210_debugfs_create_ITR_CNT(wil, dbg); 1024 1025 wil_debugfs_create_iomem_x32("RGF_USER_USAGE_1", S_IRUGO, dbg, 1026 wil->csr + 1027 HOSTADDR(RGF_USER_USAGE_1)); 1028 debugfs_create_u32("mem_addr", S_IRUGO | S_IWUSR, dbg, &mem_addr); 1029 debugfs_create_file("mem_val", S_IRUGO, dbg, wil, &fops_memread); 1030 1031 debugfs_create_file("reset", S_IWUSR, dbg, wil, &fops_reset); 1032 debugfs_create_file("rxon", S_IWUSR, dbg, wil, &fops_rxon); 1033 debugfs_create_file("tx_mgmt", S_IWUSR, dbg, wil, &fops_txmgmt); 1034 debugfs_create_file("wmi_send", S_IWUSR, dbg, wil, &fops_wmi); 1035 debugfs_create_file("temp", S_IRUGO, dbg, wil, &fops_temp); 1036 debugfs_create_file("freq", S_IRUGO, dbg, wil, &fops_freq); 1037 debugfs_create_file("link", S_IRUGO, dbg, wil, &fops_link); 1038 debugfs_create_file("info", S_IRUGO, dbg, wil, &fops_info); 1039 1040 wil6210_debugfs_init_blobs(wil, dbg); 1041 1042 return 0; 1043 } 1044 1045 void wil6210_debugfs_remove(struct wil6210_priv *wil) 1046 { 1047 debugfs_remove_recursive(wil->debug); 1048 wil->debug = NULL; 1049 } 1050