2 * Copyright (c) 2012-2014 Qualcomm Atheros, Inc.
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.
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.
17 #include <linux/moduleparam.h>
18 #include <linux/etherdevice.h>
19 #include <linux/if_arp.h>
26 static uint max_assoc_sta = 1;
27 module_param(max_assoc_sta, uint, S_IRUGO | S_IWUSR);
28 MODULE_PARM_DESC(max_assoc_sta, " Max number of stations associated to the AP");
31 * WMI event receiving - theory of operations
33 * When firmware about to report WMI event, it fills memory area
34 * in the mailbox and raises misc. IRQ. Thread interrupt handler invoked for
35 * the misc IRQ, function @wmi_recv_cmd called by thread IRQ handler.
37 * @wmi_recv_cmd reads event, allocates memory chunk and attaches it to the
38 * event list @wil->pending_wmi_ev. Then, work queue @wil->wmi_wq wakes up
39 * and handles events within the @wmi_event_worker. Every event get detached
40 * from list, processed and deleted.
42 * Purpose for this mechanism is to release IRQ thread; otherwise,
43 * if WMI event handling involves another WMI command flow, this 2-nd flow
44 * won't be completed because of blocked IRQ thread.
48 * Addressing - theory of operations
50 * There are several buses present on the WIL6210 card.
51 * Same memory areas are visible at different address on
52 * the different busses. There are 3 main bus masters:
54 * - User CPU (firmware)
57 * On the PCI bus, there is one BAR (BAR0) of 2Mb size, exposing
58 * AHB addresses starting from 0x880000
60 * Internally, firmware uses addresses that allows faster access but
61 * are invisible from the host. To read from these addresses, alternative
62 * AHB address must be used.
65 * Linker address PCI/Host address
66 * 0x880000 .. 0xa80000 2Mb BAR0
67 * 0x800000 .. 0x807000 0x900000 .. 0x907000 28k DCCM
68 * 0x840000 .. 0x857000 0x908000 .. 0x91f000 92k PERIPH
72 * @fw_mapping provides memory remapping table
74 * array size should be in sync with the declaration in the wil6210.h
76 const struct fw_map fw_mapping[] = {
77 {0x000000, 0x040000, 0x8c0000, "fw_code"}, /* FW code RAM 256k */
78 {0x800000, 0x808000, 0x900000, "fw_data"}, /* FW data RAM 32k */
79 {0x840000, 0x860000, 0x908000, "fw_peri"}, /* periph. data RAM 128k */
80 {0x880000, 0x88a000, 0x880000, "rgf"}, /* various RGF 40k */
81 {0x88a000, 0x88b000, 0x88a000, "AGC_tbl"}, /* AGC table 4k */
82 {0x88b000, 0x88c000, 0x88b000, "rgf_ext"}, /* Pcie_ext_rgf 4k */
83 {0x8c0000, 0x949000, 0x8c0000, "upper"}, /* upper area 548k */
85 * 920000..930000 ucode code RAM
86 * 930000..932000 ucode data RAM
87 * 932000..949000 back-door debug data
92 * return AHB address for given firmware/ucode internal (linker) address
93 * @x - internal address
94 * If address have no valid AHB mapping, return 0
96 static u32 wmi_addr_remap(u32 x)
100 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) {
101 if ((x >= fw_mapping[i].from) && (x < fw_mapping[i].to))
102 return x + fw_mapping[i].host - fw_mapping[i].from;
109 * Check address validity for WMI buffer; remap if needed
110 * @ptr - internal (linker) fw/ucode address
112 * Valid buffer should be DWORD aligned
114 * return address for accessing buffer from the host;
115 * if buffer is not valid, return NULL.
117 void __iomem *wmi_buffer(struct wil6210_priv *wil, __le32 ptr_)
120 u32 ptr = le32_to_cpu(ptr_);
125 ptr = wmi_addr_remap(ptr);
126 if (ptr < WIL6210_FW_HOST_OFF)
130 if (off > WIL6210_MEM_SIZE - 4)
133 return wil->csr + off;
137 * Check address validity
139 void __iomem *wmi_addr(struct wil6210_priv *wil, u32 ptr)
146 if (ptr < WIL6210_FW_HOST_OFF)
150 if (off > WIL6210_MEM_SIZE - 4)
153 return wil->csr + off;
156 int wmi_read_hdr(struct wil6210_priv *wil, __le32 ptr,
157 struct wil6210_mbox_hdr *hdr)
159 void __iomem *src = wmi_buffer(wil, ptr);
164 wil_memcpy_fromio_32(hdr, src, sizeof(*hdr));
169 static int __wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len)
172 struct wil6210_mbox_hdr hdr;
173 struct wil6210_mbox_hdr_wmi wmi;
176 .type = WIL_MBOX_HDR_TYPE_WMI,
178 .len = cpu_to_le16(sizeof(cmd.wmi) + len),
182 .id = cpu_to_le16(cmdid),
185 struct wil6210_mbox_ring *r = &wil->mbox_ctl.tx;
186 struct wil6210_mbox_ring_desc d_head;
189 void __iomem *head = wmi_addr(wil, r->head);
192 if (sizeof(cmd) + len > r->entry_size) {
193 wil_err(wil, "WMI size too large: %d bytes, max is %d\n",
194 (int)(sizeof(cmd) + len), r->entry_size);
200 if (!test_bit(wil_status_fwready, &wil->status)) {
201 wil_err(wil, "WMI: cannot send command while FW not ready\n");
206 wil_err(wil, "WMI head is garbage: 0x%08x\n", r->head);
209 /* read Tx head till it is not busy */
210 for (retry = 5; retry > 0; retry--) {
211 wil_memcpy_fromio_32(&d_head, head, sizeof(d_head));
212 if (d_head.sync == 0)
216 if (d_head.sync != 0) {
217 wil_err(wil, "WMI head busy\n");
221 next_head = r->base + ((r->head - r->base + sizeof(d_head)) % r->size);
222 wil_dbg_wmi(wil, "Head 0x%08x -> 0x%08x\n", r->head, next_head);
223 /* wait till FW finish with previous command */
224 for (retry = 5; retry > 0; retry--) {
225 r->tail = ioread32(wil->csr + HOST_MBOX +
226 offsetof(struct wil6210_mbox_ctl, tx.tail));
227 if (next_head != r->tail)
231 if (next_head == r->tail) {
232 wil_err(wil, "WMI ring full\n");
235 dst = wmi_buffer(wil, d_head.addr);
237 wil_err(wil, "invalid WMI buffer: 0x%08x\n",
238 le32_to_cpu(d_head.addr));
241 cmd.hdr.seq = cpu_to_le16(++wil->wmi_seq);
243 wil_dbg_wmi(wil, "WMI command 0x%04x [%d]\n", cmdid, len);
244 wil_hex_dump_wmi("Cmd ", DUMP_PREFIX_OFFSET, 16, 1, &cmd,
246 wil_hex_dump_wmi("cmd ", DUMP_PREFIX_OFFSET, 16, 1, buf,
248 wil_memcpy_toio_32(dst, &cmd, sizeof(cmd));
249 wil_memcpy_toio_32(dst + sizeof(cmd), buf, len);
250 /* mark entry as full */
251 iowrite32(1, wil->csr + HOSTADDR(r->head) +
252 offsetof(struct wil6210_mbox_ring_desc, sync));
253 /* advance next ptr */
254 iowrite32(r->head = next_head, wil->csr + HOST_MBOX +
255 offsetof(struct wil6210_mbox_ctl, tx.head));
257 trace_wil6210_wmi_cmd(&cmd.wmi, buf, len);
259 /* interrupt to FW */
260 iowrite32(SW_INT_MBOX, wil->csr + HOST_SW_INT);
265 int wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len)
269 mutex_lock(&wil->wmi_mutex);
270 rc = __wmi_send(wil, cmdid, buf, len);
271 mutex_unlock(&wil->wmi_mutex);
276 /*=== Event handlers ===*/
277 static void wmi_evt_ready(struct wil6210_priv *wil, int id, void *d, int len)
279 struct net_device *ndev = wil_to_ndev(wil);
280 struct wireless_dev *wdev = wil->wdev;
281 struct wmi_ready_event *evt = d;
283 wil->fw_version = le32_to_cpu(evt->sw_version);
284 wil->n_mids = evt->numof_additional_mids;
286 wil_info(wil, "FW ver. %d; MAC %pM; %d MID's\n", wil->fw_version,
287 evt->mac, wil->n_mids);
289 if (!is_valid_ether_addr(ndev->dev_addr)) {
290 memcpy(ndev->dev_addr, evt->mac, ETH_ALEN);
291 memcpy(ndev->perm_addr, evt->mac, ETH_ALEN);
293 snprintf(wdev->wiphy->fw_version, sizeof(wdev->wiphy->fw_version),
294 "%d", wil->fw_version);
297 static void wmi_evt_fw_ready(struct wil6210_priv *wil, int id, void *d,
300 wil_dbg_wmi(wil, "WMI: got FW ready event\n");
302 wil_set_recovery_state(wil, fw_recovery_idle);
303 set_bit(wil_status_fwready, &wil->status);
304 /* let the reset sequence continue */
305 complete(&wil->wmi_ready);
308 static void wmi_evt_rx_mgmt(struct wil6210_priv *wil, int id, void *d, int len)
310 struct wmi_rx_mgmt_packet_event *data = d;
311 struct wiphy *wiphy = wil_to_wiphy(wil);
312 struct ieee80211_mgmt *rx_mgmt_frame =
313 (struct ieee80211_mgmt *)data->payload;
314 int ch_no = data->info.channel+1;
315 u32 freq = ieee80211_channel_to_frequency(ch_no,
316 IEEE80211_BAND_60GHZ);
317 struct ieee80211_channel *channel = ieee80211_get_channel(wiphy, freq);
318 s32 signal = data->info.sqi;
319 __le16 fc = rx_mgmt_frame->frame_control;
320 u32 d_len = le32_to_cpu(data->info.len);
321 u16 d_status = le16_to_cpu(data->info.status);
323 wil_dbg_wmi(wil, "MGMT: channel %d MCS %d SNR %d SQI %d%%\n",
324 data->info.channel, data->info.mcs, data->info.snr,
326 wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len,
328 wil_dbg_wmi(wil, "qid %d mid %d cid %d\n",
329 data->info.qid, data->info.mid, data->info.cid);
332 wil_err(wil, "Frame on unsupported channel\n");
336 if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) {
337 struct cfg80211_bss *bss;
338 u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp);
339 u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info);
340 u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int);
341 const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable;
342 size_t ie_len = d_len - offsetof(struct ieee80211_mgmt,
344 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap);
345 wil_dbg_wmi(wil, "TSF : 0x%016llx\n", tsf);
346 wil_dbg_wmi(wil, "Beacon interval : %d\n", bi);
347 wil_hex_dump_wmi("IE ", DUMP_PREFIX_OFFSET, 16, 1, ie_buf,
350 bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame,
351 d_len, signal, GFP_KERNEL);
353 wil_dbg_wmi(wil, "Added BSS %pM\n",
354 rx_mgmt_frame->bssid);
355 cfg80211_put_bss(wiphy, bss);
357 wil_err(wil, "cfg80211_inform_bss_frame() failed\n");
360 cfg80211_rx_mgmt(wil->wdev, freq, signal,
361 (void *)rx_mgmt_frame, d_len, 0);
365 static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id,
368 if (wil->scan_request) {
369 struct wmi_scan_complete_event *data = d;
370 bool aborted = (data->status != WMI_SCAN_SUCCESS);
372 wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", data->status);
373 wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n",
374 wil->scan_request, aborted);
376 del_timer_sync(&wil->scan_timer);
377 cfg80211_scan_done(wil->scan_request, aborted);
378 wil->scan_request = NULL;
380 wil_err(wil, "SCAN_COMPLETE while not scanning\n");
384 static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len)
386 struct net_device *ndev = wil_to_ndev(wil);
387 struct wireless_dev *wdev = wil->wdev;
388 struct wmi_connect_event *evt = d;
389 int ch; /* channel number */
390 struct station_info sinfo;
391 u8 *assoc_req_ie, *assoc_resp_ie;
392 size_t assoc_req_ielen, assoc_resp_ielen;
393 /* capinfo(u16) + listen_interval(u16) + IEs */
394 const size_t assoc_req_ie_offset = sizeof(u16) * 2;
395 /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */
396 const size_t assoc_resp_ie_offset = sizeof(u16) * 3;
398 if (len < sizeof(*evt)) {
399 wil_err(wil, "Connect event too short : %d bytes\n", len);
402 if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len +
403 evt->assoc_resp_len) {
405 "Connect event corrupted : %d != %d + %d + %d + %d\n",
406 len, (int)sizeof(*evt), evt->beacon_ie_len,
407 evt->assoc_req_len, evt->assoc_resp_len);
410 if (evt->cid >= WIL6210_MAX_CID) {
411 wil_err(wil, "Connect CID invalid : %d\n", evt->cid);
415 ch = evt->channel + 1;
416 wil_dbg_wmi(wil, "Connect %pM channel [%d] cid %d\n",
417 evt->bssid, ch, evt->cid);
418 wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1,
419 evt->assoc_info, len - sizeof(*evt), true);
421 /* figure out IE's */
422 assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len +
423 assoc_req_ie_offset];
424 assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset;
425 if (evt->assoc_req_len <= assoc_req_ie_offset) {
430 assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len +
432 assoc_resp_ie_offset];
433 assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset;
434 if (evt->assoc_resp_len <= assoc_resp_ie_offset) {
435 assoc_resp_ie = NULL;
436 assoc_resp_ielen = 0;
439 if ((wdev->iftype == NL80211_IFTYPE_STATION) ||
440 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) {
441 if (!test_bit(wil_status_fwconnecting, &wil->status)) {
442 wil_err(wil, "Not in connecting state\n");
445 del_timer_sync(&wil->connect_timer);
446 cfg80211_connect_result(ndev, evt->bssid,
447 assoc_req_ie, assoc_req_ielen,
448 assoc_resp_ie, assoc_resp_ielen,
449 WLAN_STATUS_SUCCESS, GFP_KERNEL);
451 } else if ((wdev->iftype == NL80211_IFTYPE_AP) ||
452 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) {
453 memset(&sinfo, 0, sizeof(sinfo));
455 sinfo.generation = wil->sinfo_gen++;
458 sinfo.assoc_req_ies = assoc_req_ie;
459 sinfo.assoc_req_ies_len = assoc_req_ielen;
460 sinfo.filled |= STATION_INFO_ASSOC_REQ_IES;
463 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL);
465 clear_bit(wil_status_fwconnecting, &wil->status);
466 set_bit(wil_status_fwconnected, &wil->status);
468 /* FIXME FW can transmit only ucast frames to peer */
469 /* FIXME real ring_id instead of hard coded 0 */
470 memcpy(wil->sta[evt->cid].addr, evt->bssid, ETH_ALEN);
471 wil->sta[evt->cid].status = wil_sta_conn_pending;
473 wil->pending_connect_cid = evt->cid;
474 queue_work(wil->wmi_wq_conn, &wil->connect_worker);
477 static void wmi_evt_disconnect(struct wil6210_priv *wil, int id,
480 struct wmi_disconnect_event *evt = d;
481 u16 reason_code = le16_to_cpu(evt->protocol_reason_status);
483 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n",
484 evt->bssid, reason_code, evt->disconnect_reason);
488 mutex_lock(&wil->mutex);
489 wil6210_disconnect(wil, evt->bssid, reason_code, true);
490 mutex_unlock(&wil->mutex);
494 * Firmware reports EAPOL frame using WME event.
495 * Reconstruct Ethernet frame and deliver it via normal Rx
497 static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id,
500 struct net_device *ndev = wil_to_ndev(wil);
501 struct wmi_eapol_rx_event *evt = d;
502 u16 eapol_len = le16_to_cpu(evt->eapol_len);
503 int sz = eapol_len + ETH_HLEN;
507 struct wil_net_stats *stats = NULL;
509 wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len,
512 cid = wil_find_cid(wil, evt->src_mac);
514 stats = &wil->sta[cid].stats;
516 if (eapol_len > 196) { /* TODO: revisit size limit */
517 wil_err(wil, "EAPOL too large\n");
521 skb = alloc_skb(sz, GFP_KERNEL);
523 wil_err(wil, "Failed to allocate skb\n");
527 eth = (struct ethhdr *)skb_put(skb, ETH_HLEN);
528 memcpy(eth->h_dest, ndev->dev_addr, ETH_ALEN);
529 memcpy(eth->h_source, evt->src_mac, ETH_ALEN);
530 eth->h_proto = cpu_to_be16(ETH_P_PAE);
531 memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len);
532 skb->protocol = eth_type_trans(skb, ndev);
533 if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) {
534 ndev->stats.rx_packets++;
535 ndev->stats.rx_bytes += sz;
538 stats->rx_bytes += sz;
541 ndev->stats.rx_dropped++;
547 static void wmi_evt_linkup(struct wil6210_priv *wil, int id, void *d, int len)
549 struct net_device *ndev = wil_to_ndev(wil);
550 struct wmi_data_port_open_event *evt = d;
553 wil_dbg_wmi(wil, "Link UP for CID %d\n", cid);
555 if (cid >= ARRAY_SIZE(wil->sta)) {
556 wil_err(wil, "Link UP for invalid CID %d\n", cid);
560 wil->sta[cid].data_port_open = true;
561 netif_carrier_on(ndev);
564 static void wmi_evt_linkdown(struct wil6210_priv *wil, int id, void *d, int len)
566 struct net_device *ndev = wil_to_ndev(wil);
567 struct wmi_wbe_link_down_event *evt = d;
570 wil_dbg_wmi(wil, "Link DOWN for CID %d, reason %d\n",
571 cid, le32_to_cpu(evt->reason));
573 if (cid >= ARRAY_SIZE(wil->sta)) {
574 wil_err(wil, "Link DOWN for invalid CID %d\n", cid);
578 wil->sta[cid].data_port_open = false;
579 netif_carrier_off(ndev);
582 static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d,
585 struct wmi_vring_ba_status_event *evt = d;
586 struct wil_sta_info *sta;
589 /* TODO: use Rx BA status, not Tx one */
591 wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d\n",
593 evt->status == WMI_BA_AGREED ? "OK" : "N/A",
594 evt->agg_wsize, __le16_to_cpu(evt->ba_timeout));
596 if (evt->ringid >= WIL6210_MAX_TX_RINGS) {
597 wil_err(wil, "invalid ring id %d\n", evt->ringid);
601 mutex_lock(&wil->mutex);
603 cid = wil->vring2cid_tid[evt->ringid][0];
604 if (cid >= WIL6210_MAX_CID) {
605 wil_err(wil, "invalid CID %d for vring %d\n", cid, evt->ringid);
609 sta = &wil->sta[cid];
610 if (sta->status == wil_sta_unused) {
611 wil_err(wil, "CID %d unused\n", cid);
615 wil_dbg_wmi(wil, "BACK for CID %d %pM\n", cid, sta->addr);
616 for (i = 0; i < WIL_STA_TID_NUM; i++) {
617 struct wil_tid_ampdu_rx *r;
620 spin_lock_irqsave(&sta->tid_rx_lock, flags);
623 sta->tid_rx[i] = NULL;
624 wil_tid_ampdu_rx_free(wil, r);
626 spin_unlock_irqrestore(&sta->tid_rx_lock, flags);
628 if ((evt->status == WMI_BA_AGREED) && evt->agg_wsize)
629 sta->tid_rx[i] = wil_tid_ampdu_rx_alloc(wil,
634 mutex_unlock(&wil->mutex);
637 static const struct {
639 void (*handler)(struct wil6210_priv *wil, int eventid,
640 void *data, int data_len);
641 } wmi_evt_handlers[] = {
642 {WMI_READY_EVENTID, wmi_evt_ready},
643 {WMI_FW_READY_EVENTID, wmi_evt_fw_ready},
644 {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt},
645 {WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete},
646 {WMI_CONNECT_EVENTID, wmi_evt_connect},
647 {WMI_DISCONNECT_EVENTID, wmi_evt_disconnect},
648 {WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx},
649 {WMI_DATA_PORT_OPEN_EVENTID, wmi_evt_linkup},
650 {WMI_WBE_LINKDOWN_EVENTID, wmi_evt_linkdown},
651 {WMI_BA_STATUS_EVENTID, wmi_evt_ba_status},
656 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev
657 * that will be eventually handled by the @wmi_event_worker in the thread
658 * context of thread "wil6210_wmi"
660 void wmi_recv_cmd(struct wil6210_priv *wil)
662 struct wil6210_mbox_ring_desc d_tail;
663 struct wil6210_mbox_hdr hdr;
664 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx;
665 struct pending_wmi_event *evt;
671 if (!test_bit(wil_status_reset_done, &wil->status)) {
672 wil_err(wil, "Reset in progress. Cannot handle WMI event\n");
680 r->head = ioread32(wil->csr + HOST_MBOX +
681 offsetof(struct wil6210_mbox_ctl, rx.head));
682 if (r->tail == r->head)
685 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n",
687 /* read cmd descriptor from tail */
688 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail),
689 sizeof(struct wil6210_mbox_ring_desc));
690 if (d_tail.sync == 0) {
691 wil_err(wil, "Mbox evt not owned by FW?\n");
695 /* read cmd header from descriptor */
696 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) {
697 wil_err(wil, "Mbox evt at 0x%08x?\n",
698 le32_to_cpu(d_tail.addr));
701 len = le16_to_cpu(hdr.len);
702 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n",
703 le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type),
706 /* read cmd buffer from descriptor */
707 src = wmi_buffer(wil, d_tail.addr) +
708 sizeof(struct wil6210_mbox_hdr);
709 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event,
710 event.wmi) + len, 4),
715 evt->event.hdr = hdr;
716 cmd = (void *)&evt->event.wmi;
717 wil_memcpy_fromio_32(cmd, src, len);
718 /* mark entry as empty */
719 iowrite32(0, wil->csr + HOSTADDR(r->tail) +
720 offsetof(struct wil6210_mbox_ring_desc, sync));
722 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) &&
723 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) {
724 struct wil6210_mbox_hdr_wmi *wmi = &evt->event.wmi;
725 u16 id = le16_to_cpu(wmi->id);
726 u32 tstamp = le32_to_cpu(wmi->timestamp);
728 wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n",
729 id, wmi->mid, tstamp);
730 trace_wil6210_wmi_event(wmi, &wmi[1],
733 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1,
734 &evt->event.hdr, sizeof(hdr) + len, true);
737 r->tail = r->base + ((r->tail - r->base +
738 sizeof(struct wil6210_mbox_ring_desc)) % r->size);
739 iowrite32(r->tail, wil->csr + HOST_MBOX +
740 offsetof(struct wil6210_mbox_ctl, rx.tail));
742 /* add to the pending list */
743 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
744 list_add_tail(&evt->list, &wil->pending_wmi_ev);
745 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
746 q = queue_work(wil->wmi_wq, &wil->wmi_event_worker);
747 wil_dbg_wmi(wil, "queue_work -> %d\n", q);
749 /* normally, 1 event per IRQ should be processed */
750 wil_dbg_wmi(wil, "%s -> %d events queued\n", __func__, n);
753 int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len,
754 u16 reply_id, void *reply, u8 reply_size, int to_msec)
759 mutex_lock(&wil->wmi_mutex);
761 rc = __wmi_send(wil, cmdid, buf, len);
765 wil->reply_id = reply_id;
766 wil->reply_buf = reply;
767 wil->reply_size = reply_size;
768 remain = wait_for_completion_timeout(&wil->wmi_call,
769 msecs_to_jiffies(to_msec));
771 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n",
772 cmdid, reply_id, to_msec);
776 "wmi_call(0x%04x->0x%04x) completed in %d msec\n",
778 to_msec - jiffies_to_msecs(remain));
781 wil->reply_buf = NULL;
784 mutex_unlock(&wil->wmi_mutex);
789 int wmi_echo(struct wil6210_priv *wil)
791 struct wmi_echo_cmd cmd = {
792 .value = cpu_to_le32(0x12345678),
795 return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd),
796 WMI_ECHO_RSP_EVENTID, NULL, 0, 20);
799 int wmi_set_mac_address(struct wil6210_priv *wil, void *addr)
801 struct wmi_set_mac_address_cmd cmd;
803 memcpy(cmd.mac, addr, ETH_ALEN);
805 wil_dbg_wmi(wil, "Set MAC %pM\n", addr);
807 return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd));
810 int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype, u8 chan)
814 struct wmi_pcp_start_cmd cmd = {
815 .bcon_interval = cpu_to_le16(bi),
816 .network_type = wmi_nettype,
817 .disable_sec_offload = 1,
819 .pcp_max_assoc_sta = max_assoc_sta,
822 struct wil6210_mbox_hdr_wmi wmi;
823 struct wmi_pcp_started_event evt;
826 if (!wil->secure_pcp)
829 if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) ||
830 (cmd.pcp_max_assoc_sta <= 0)) {
832 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n",
833 max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID);
834 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID;
838 * Processing time may be huge, in case of secure AP it takes about
839 * 3500ms for FW to start AP
841 rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd),
842 WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000);
846 if (reply.evt.status != WMI_FW_STATUS_SUCCESS)
852 int wmi_pcp_stop(struct wil6210_priv *wil)
854 return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0,
855 WMI_PCP_STOPPED_EVENTID, NULL, 0, 20);
858 int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid)
860 struct wmi_set_ssid_cmd cmd = {
861 .ssid_len = cpu_to_le32(ssid_len),
864 if (ssid_len > sizeof(cmd.ssid))
867 memcpy(cmd.ssid, ssid, ssid_len);
869 return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd));
872 int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid)
876 struct wil6210_mbox_hdr_wmi wmi;
877 struct wmi_set_ssid_cmd cmd;
879 int len; /* reply.cmd.ssid_len in CPU order */
881 rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID,
882 &reply, sizeof(reply), 20);
886 len = le32_to_cpu(reply.cmd.ssid_len);
887 if (len > sizeof(reply.cmd.ssid))
891 memcpy(ssid, reply.cmd.ssid, len);
896 int wmi_set_channel(struct wil6210_priv *wil, int channel)
898 struct wmi_set_pcp_channel_cmd cmd = {
899 .channel = channel - 1,
902 return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd));
905 int wmi_get_channel(struct wil6210_priv *wil, int *channel)
909 struct wil6210_mbox_hdr_wmi wmi;
910 struct wmi_set_pcp_channel_cmd cmd;
913 rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0,
914 WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20);
918 if (reply.cmd.channel > 3)
921 *channel = reply.cmd.channel + 1;
926 int wmi_p2p_cfg(struct wil6210_priv *wil, int channel)
928 struct wmi_p2p_cfg_cmd cmd = {
929 .discovery_mode = WMI_DISCOVERY_MODE_NON_OFFLOAD,
930 .channel = channel - 1,
933 return wmi_send(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd));
936 int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index,
937 const void *mac_addr)
939 struct wmi_delete_cipher_key_cmd cmd = {
940 .key_index = key_index,
944 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
946 return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
949 int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index,
950 const void *mac_addr, int key_len, const void *key)
952 struct wmi_add_cipher_key_cmd cmd = {
953 .key_index = key_index,
954 .key_usage = WMI_KEY_USE_PAIRWISE,
958 if (!key || (key_len > sizeof(cmd.key)))
961 memcpy(cmd.key, key, key_len);
963 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
965 return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
968 int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie)
971 u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len;
972 struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL);
979 cmd->mgmt_frm_type = type;
980 /* BUG: FW API define ieLen as u8. Will fix FW */
981 cmd->ie_len = cpu_to_le16(ie_len);
982 memcpy(cmd->ie_info, ie, ie_len);
983 rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len);
990 * wmi_rxon - turn radio on/off
991 * @on: turn on if true, off otherwise
993 * Only switch radio. Channel should be set separately.
994 * No timeout for rxon - radio turned on forever unless some other call
997 int wmi_rxon(struct wil6210_priv *wil, bool on)
1001 struct wil6210_mbox_hdr_wmi wmi;
1002 struct wmi_listen_started_event evt;
1005 wil_info(wil, "%s(%s)\n", __func__, on ? "on" : "off");
1008 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0,
1009 WMI_LISTEN_STARTED_EVENTID,
1010 &reply, sizeof(reply), 100);
1011 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS))
1014 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0,
1015 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20);
1021 int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring)
1023 struct wireless_dev *wdev = wil->wdev;
1024 struct net_device *ndev = wil_to_ndev(wil);
1025 struct wmi_cfg_rx_chain_cmd cmd = {
1026 .action = WMI_RX_CHAIN_ADD,
1028 .max_mpdu_size = cpu_to_le16(mtu_max + ETH_HLEN),
1029 .ring_mem_base = cpu_to_le64(vring->pa),
1030 .ring_size = cpu_to_le16(vring->size),
1032 .mid = 0, /* TODO - what is it? */
1033 .decap_trans_type = WMI_DECAP_TYPE_802_3,
1034 .reorder_type = WMI_RX_SW_REORDER,
1037 struct wil6210_mbox_hdr_wmi wmi;
1038 struct wmi_cfg_rx_chain_done_event evt;
1042 if (wdev->iftype == NL80211_IFTYPE_MONITOR) {
1043 struct ieee80211_channel *ch = wdev->preset_chandef.chan;
1045 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON);
1047 cmd.sniffer_cfg.channel = ch->hw_value - 1;
1048 cmd.sniffer_cfg.phy_info_mode =
1049 cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP);
1050 cmd.sniffer_cfg.phy_support =
1051 cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL)
1052 ? WMI_SNIFFER_CP : WMI_SNIFFER_DP);
1054 /* Initialize offload (in non-sniffer mode).
1055 * Linux IP stack always calculates IP checksum
1056 * HW always calculate TCP/UDP checksum
1058 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS);
1060 /* typical time for secure PCP is 840ms */
1061 rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd),
1062 WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000);
1066 vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr);
1068 wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n",
1069 le32_to_cpu(evt.evt.status), vring->hwtail);
1071 if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS)
1077 int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_m, u32 *t_r)
1080 struct wmi_temp_sense_cmd cmd = {
1081 .measure_marlon_m_en = cpu_to_le32(!!t_m),
1082 .measure_marlon_r_en = cpu_to_le32(!!t_r),
1085 struct wil6210_mbox_hdr_wmi wmi;
1086 struct wmi_temp_sense_done_event evt;
1089 rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd),
1090 WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100);
1095 *t_m = le32_to_cpu(reply.evt.marlon_m_t1000);
1097 *t_r = le32_to_cpu(reply.evt.marlon_r_t1000);
1102 int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, u16 reason)
1104 struct wmi_disconnect_sta_cmd cmd = {
1105 .disconnect_reason = cpu_to_le16(reason),
1107 memcpy(cmd.dst_mac, mac, ETH_ALEN);
1109 wil_dbg_wmi(wil, "%s(%pM, reason %d)\n", __func__, mac, reason);
1111 return wmi_send(wil, WMI_DISCONNECT_STA_CMDID, &cmd, sizeof(cmd));
1114 void wmi_event_flush(struct wil6210_priv *wil)
1116 struct pending_wmi_event *evt, *t;
1118 wil_dbg_wmi(wil, "%s()\n", __func__);
1120 list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) {
1121 list_del(&evt->list);
1126 static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id,
1131 for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) {
1132 if (wmi_evt_handlers[i].eventid == id) {
1133 wmi_evt_handlers[i].handler(wil, id, d, len);
1141 static void wmi_event_handle(struct wil6210_priv *wil,
1142 struct wil6210_mbox_hdr *hdr)
1144 u16 len = le16_to_cpu(hdr->len);
1146 if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) &&
1147 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) {
1148 struct wil6210_mbox_hdr_wmi *wmi = (void *)(&hdr[1]);
1149 void *evt_data = (void *)(&wmi[1]);
1150 u16 id = le16_to_cpu(wmi->id);
1152 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n",
1154 /* check if someone waits for this event */
1155 if (wil->reply_id && wil->reply_id == id) {
1156 if (wil->reply_buf) {
1157 memcpy(wil->reply_buf, wmi,
1158 min(len, wil->reply_size));
1160 wmi_evt_call_handler(wil, id, evt_data,
1161 len - sizeof(*wmi));
1163 wil_dbg_wmi(wil, "Complete WMI 0x%04x\n", id);
1164 complete(&wil->wmi_call);
1167 /* unsolicited event */
1168 /* search for handler */
1169 if (!wmi_evt_call_handler(wil, id, evt_data,
1170 len - sizeof(*wmi))) {
1171 wil_err(wil, "Unhandled event 0x%04x\n", id);
1174 wil_err(wil, "Unknown event type\n");
1175 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1,
1176 hdr, sizeof(*hdr) + len, true);
1181 * Retrieve next WMI event from the pending list
1183 static struct list_head *next_wmi_ev(struct wil6210_priv *wil)
1186 struct list_head *ret = NULL;
1188 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
1190 if (!list_empty(&wil->pending_wmi_ev)) {
1191 ret = wil->pending_wmi_ev.next;
1195 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
1201 * Handler for the WMI events
1203 void wmi_event_worker(struct work_struct *work)
1205 struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
1207 struct pending_wmi_event *evt;
1208 struct list_head *lh;
1210 wil_dbg_wmi(wil, "Start %s\n", __func__);
1211 while ((lh = next_wmi_ev(wil)) != NULL) {
1212 evt = list_entry(lh, struct pending_wmi_event, list);
1213 wmi_event_handle(wil, &evt->event.hdr);
1216 wil_dbg_wmi(wil, "Finished %s\n", __func__);