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 = WIL6210_MAX_CID;
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");
30 int agg_wsize; /* = 0; */
31 module_param(agg_wsize, int, S_IRUGO | S_IWUSR);
32 MODULE_PARM_DESC(agg_wsize, " Window size for Tx Block Ack after connect;"
33 " 0 - use default; < 0 - don't auto-establish");
36 * WMI event receiving - theory of operations
38 * When firmware about to report WMI event, it fills memory area
39 * in the mailbox and raises misc. IRQ. Thread interrupt handler invoked for
40 * the misc IRQ, function @wmi_recv_cmd called by thread IRQ handler.
42 * @wmi_recv_cmd reads event, allocates memory chunk and attaches it to the
43 * event list @wil->pending_wmi_ev. Then, work queue @wil->wmi_wq wakes up
44 * and handles events within the @wmi_event_worker. Every event get detached
45 * from list, processed and deleted.
47 * Purpose for this mechanism is to release IRQ thread; otherwise,
48 * if WMI event handling involves another WMI command flow, this 2-nd flow
49 * won't be completed because of blocked IRQ thread.
53 * Addressing - theory of operations
55 * There are several buses present on the WIL6210 card.
56 * Same memory areas are visible at different address on
57 * the different busses. There are 3 main bus masters:
59 * - User CPU (firmware)
62 * On the PCI bus, there is one BAR (BAR0) of 2Mb size, exposing
63 * AHB addresses starting from 0x880000
65 * Internally, firmware uses addresses that allows faster access but
66 * are invisible from the host. To read from these addresses, alternative
67 * AHB address must be used.
70 * Linker address PCI/Host address
71 * 0x880000 .. 0xa80000 2Mb BAR0
72 * 0x800000 .. 0x807000 0x900000 .. 0x907000 28k DCCM
73 * 0x840000 .. 0x857000 0x908000 .. 0x91f000 92k PERIPH
77 * @fw_mapping provides memory remapping table
79 * array size should be in sync with the declaration in the wil6210.h
81 const struct fw_map fw_mapping[] = {
82 {0x000000, 0x040000, 0x8c0000, "fw_code"}, /* FW code RAM 256k */
83 {0x800000, 0x808000, 0x900000, "fw_data"}, /* FW data RAM 32k */
84 {0x840000, 0x860000, 0x908000, "fw_peri"}, /* periph. data RAM 128k */
85 {0x880000, 0x88a000, 0x880000, "rgf"}, /* various RGF 40k */
86 {0x88a000, 0x88b000, 0x88a000, "AGC_tbl"}, /* AGC table 4k */
87 {0x88b000, 0x88c000, 0x88b000, "rgf_ext"}, /* Pcie_ext_rgf 4k */
88 {0x8c0000, 0x949000, 0x8c0000, "upper"}, /* upper area 548k */
90 * 920000..930000 ucode code RAM
91 * 930000..932000 ucode data RAM
92 * 932000..949000 back-door debug data
97 * return AHB address for given firmware/ucode internal (linker) address
98 * @x - internal address
99 * If address have no valid AHB mapping, return 0
101 static u32 wmi_addr_remap(u32 x)
105 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) {
106 if ((x >= fw_mapping[i].from) && (x < fw_mapping[i].to))
107 return x + fw_mapping[i].host - fw_mapping[i].from;
114 * Check address validity for WMI buffer; remap if needed
115 * @ptr - internal (linker) fw/ucode address
117 * Valid buffer should be DWORD aligned
119 * return address for accessing buffer from the host;
120 * if buffer is not valid, return NULL.
122 void __iomem *wmi_buffer(struct wil6210_priv *wil, __le32 ptr_)
125 u32 ptr = le32_to_cpu(ptr_);
130 ptr = wmi_addr_remap(ptr);
131 if (ptr < WIL6210_FW_HOST_OFF)
135 if (off > WIL6210_MEM_SIZE - 4)
138 return wil->csr + off;
142 * Check address validity
144 void __iomem *wmi_addr(struct wil6210_priv *wil, u32 ptr)
151 if (ptr < WIL6210_FW_HOST_OFF)
155 if (off > WIL6210_MEM_SIZE - 4)
158 return wil->csr + off;
161 int wmi_read_hdr(struct wil6210_priv *wil, __le32 ptr,
162 struct wil6210_mbox_hdr *hdr)
164 void __iomem *src = wmi_buffer(wil, ptr);
169 wil_memcpy_fromio_32(hdr, src, sizeof(*hdr));
174 static int __wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len)
177 struct wil6210_mbox_hdr hdr;
178 struct wil6210_mbox_hdr_wmi wmi;
181 .type = WIL_MBOX_HDR_TYPE_WMI,
183 .len = cpu_to_le16(sizeof(cmd.wmi) + len),
187 .id = cpu_to_le16(cmdid),
190 struct wil6210_mbox_ring *r = &wil->mbox_ctl.tx;
191 struct wil6210_mbox_ring_desc d_head;
194 void __iomem *head = wmi_addr(wil, r->head);
197 if (sizeof(cmd) + len > r->entry_size) {
198 wil_err(wil, "WMI size too large: %d bytes, max is %d\n",
199 (int)(sizeof(cmd) + len), r->entry_size);
205 if (!test_bit(wil_status_fwready, wil->status)) {
206 wil_err(wil, "WMI: cannot send command while FW not ready\n");
211 wil_err(wil, "WMI head is garbage: 0x%08x\n", r->head);
214 /* read Tx head till it is not busy */
215 for (retry = 5; retry > 0; retry--) {
216 wil_memcpy_fromio_32(&d_head, head, sizeof(d_head));
217 if (d_head.sync == 0)
221 if (d_head.sync != 0) {
222 wil_err(wil, "WMI head busy\n");
226 next_head = r->base + ((r->head - r->base + sizeof(d_head)) % r->size);
227 wil_dbg_wmi(wil, "Head 0x%08x -> 0x%08x\n", r->head, next_head);
228 /* wait till FW finish with previous command */
229 for (retry = 5; retry > 0; retry--) {
230 r->tail = ioread32(wil->csr + HOST_MBOX +
231 offsetof(struct wil6210_mbox_ctl, tx.tail));
232 if (next_head != r->tail)
236 if (next_head == r->tail) {
237 wil_err(wil, "WMI ring full\n");
240 dst = wmi_buffer(wil, d_head.addr);
242 wil_err(wil, "invalid WMI buffer: 0x%08x\n",
243 le32_to_cpu(d_head.addr));
246 cmd.hdr.seq = cpu_to_le16(++wil->wmi_seq);
248 wil_dbg_wmi(wil, "WMI command 0x%04x [%d]\n", cmdid, len);
249 wil_hex_dump_wmi("Cmd ", DUMP_PREFIX_OFFSET, 16, 1, &cmd,
251 wil_hex_dump_wmi("cmd ", DUMP_PREFIX_OFFSET, 16, 1, buf,
253 wil_memcpy_toio_32(dst, &cmd, sizeof(cmd));
254 wil_memcpy_toio_32(dst + sizeof(cmd), buf, len);
255 /* mark entry as full */
256 iowrite32(1, wil->csr + HOSTADDR(r->head) +
257 offsetof(struct wil6210_mbox_ring_desc, sync));
258 /* advance next ptr */
259 iowrite32(r->head = next_head, wil->csr + HOST_MBOX +
260 offsetof(struct wil6210_mbox_ctl, tx.head));
262 trace_wil6210_wmi_cmd(&cmd.wmi, buf, len);
264 /* interrupt to FW */
265 iowrite32(SW_INT_MBOX, wil->csr + HOST_SW_INT);
270 int wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len)
274 mutex_lock(&wil->wmi_mutex);
275 rc = __wmi_send(wil, cmdid, buf, len);
276 mutex_unlock(&wil->wmi_mutex);
281 /*=== Event handlers ===*/
282 static void wmi_evt_ready(struct wil6210_priv *wil, int id, void *d, int len)
284 struct net_device *ndev = wil_to_ndev(wil);
285 struct wireless_dev *wdev = wil->wdev;
286 struct wmi_ready_event *evt = d;
288 wil->fw_version = le32_to_cpu(evt->sw_version);
289 wil->n_mids = evt->numof_additional_mids;
291 wil_info(wil, "FW ver. %d; MAC %pM; %d MID's\n", wil->fw_version,
292 evt->mac, wil->n_mids);
294 if (!is_valid_ether_addr(ndev->dev_addr)) {
295 memcpy(ndev->dev_addr, evt->mac, ETH_ALEN);
296 memcpy(ndev->perm_addr, evt->mac, ETH_ALEN);
298 snprintf(wdev->wiphy->fw_version, sizeof(wdev->wiphy->fw_version),
299 "%d", wil->fw_version);
302 static void wmi_evt_fw_ready(struct wil6210_priv *wil, int id, void *d,
305 wil_dbg_wmi(wil, "WMI: got FW ready event\n");
307 wil_set_recovery_state(wil, fw_recovery_idle);
308 set_bit(wil_status_fwready, wil->status);
309 /* let the reset sequence continue */
310 complete(&wil->wmi_ready);
313 static void wmi_evt_rx_mgmt(struct wil6210_priv *wil, int id, void *d, int len)
315 struct wmi_rx_mgmt_packet_event *data = d;
316 struct wiphy *wiphy = wil_to_wiphy(wil);
317 struct ieee80211_mgmt *rx_mgmt_frame =
318 (struct ieee80211_mgmt *)data->payload;
319 int ch_no = data->info.channel+1;
320 u32 freq = ieee80211_channel_to_frequency(ch_no,
321 IEEE80211_BAND_60GHZ);
322 struct ieee80211_channel *channel = ieee80211_get_channel(wiphy, freq);
323 s32 signal = data->info.sqi;
324 __le16 fc = rx_mgmt_frame->frame_control;
325 u32 d_len = le32_to_cpu(data->info.len);
326 u16 d_status = le16_to_cpu(data->info.status);
328 wil_dbg_wmi(wil, "MGMT: channel %d MCS %d SNR %d SQI %d%%\n",
329 data->info.channel, data->info.mcs, data->info.snr,
331 wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len,
333 wil_dbg_wmi(wil, "qid %d mid %d cid %d\n",
334 data->info.qid, data->info.mid, data->info.cid);
337 wil_err(wil, "Frame on unsupported channel\n");
341 if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) {
342 struct cfg80211_bss *bss;
343 u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp);
344 u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info);
345 u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int);
346 const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable;
347 size_t ie_len = d_len - offsetof(struct ieee80211_mgmt,
349 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap);
350 wil_dbg_wmi(wil, "TSF : 0x%016llx\n", tsf);
351 wil_dbg_wmi(wil, "Beacon interval : %d\n", bi);
352 wil_hex_dump_wmi("IE ", DUMP_PREFIX_OFFSET, 16, 1, ie_buf,
355 bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame,
356 d_len, signal, GFP_KERNEL);
358 wil_dbg_wmi(wil, "Added BSS %pM\n",
359 rx_mgmt_frame->bssid);
360 cfg80211_put_bss(wiphy, bss);
362 wil_err(wil, "cfg80211_inform_bss_frame() failed\n");
365 cfg80211_rx_mgmt(wil->wdev, freq, signal,
366 (void *)rx_mgmt_frame, d_len, 0);
370 static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id,
373 if (wil->scan_request) {
374 struct wmi_scan_complete_event *data = d;
375 bool aborted = (data->status != WMI_SCAN_SUCCESS);
377 wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", data->status);
378 wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n",
379 wil->scan_request, aborted);
381 del_timer_sync(&wil->scan_timer);
382 cfg80211_scan_done(wil->scan_request, aborted);
383 wil->scan_request = NULL;
385 wil_err(wil, "SCAN_COMPLETE while not scanning\n");
389 static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len)
391 struct net_device *ndev = wil_to_ndev(wil);
392 struct wireless_dev *wdev = wil->wdev;
393 struct wmi_connect_event *evt = d;
394 int ch; /* channel number */
395 struct station_info sinfo;
396 u8 *assoc_req_ie, *assoc_resp_ie;
397 size_t assoc_req_ielen, assoc_resp_ielen;
398 /* capinfo(u16) + listen_interval(u16) + IEs */
399 const size_t assoc_req_ie_offset = sizeof(u16) * 2;
400 /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */
401 const size_t assoc_resp_ie_offset = sizeof(u16) * 3;
403 if (len < sizeof(*evt)) {
404 wil_err(wil, "Connect event too short : %d bytes\n", len);
407 if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len +
408 evt->assoc_resp_len) {
410 "Connect event corrupted : %d != %d + %d + %d + %d\n",
411 len, (int)sizeof(*evt), evt->beacon_ie_len,
412 evt->assoc_req_len, evt->assoc_resp_len);
415 if (evt->cid >= WIL6210_MAX_CID) {
416 wil_err(wil, "Connect CID invalid : %d\n", evt->cid);
420 ch = evt->channel + 1;
421 wil_dbg_wmi(wil, "Connect %pM channel [%d] cid %d\n",
422 evt->bssid, ch, evt->cid);
423 wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1,
424 evt->assoc_info, len - sizeof(*evt), true);
426 /* figure out IE's */
427 assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len +
428 assoc_req_ie_offset];
429 assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset;
430 if (evt->assoc_req_len <= assoc_req_ie_offset) {
435 assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len +
437 assoc_resp_ie_offset];
438 assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset;
439 if (evt->assoc_resp_len <= assoc_resp_ie_offset) {
440 assoc_resp_ie = NULL;
441 assoc_resp_ielen = 0;
444 if ((wdev->iftype == NL80211_IFTYPE_STATION) ||
445 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) {
446 if (!test_bit(wil_status_fwconnecting, wil->status)) {
447 wil_err(wil, "Not in connecting state\n");
450 del_timer_sync(&wil->connect_timer);
451 cfg80211_connect_result(ndev, evt->bssid,
452 assoc_req_ie, assoc_req_ielen,
453 assoc_resp_ie, assoc_resp_ielen,
454 WLAN_STATUS_SUCCESS, GFP_KERNEL);
456 } else if ((wdev->iftype == NL80211_IFTYPE_AP) ||
457 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) {
458 memset(&sinfo, 0, sizeof(sinfo));
460 sinfo.generation = wil->sinfo_gen++;
463 sinfo.assoc_req_ies = assoc_req_ie;
464 sinfo.assoc_req_ies_len = assoc_req_ielen;
465 sinfo.filled |= STATION_INFO_ASSOC_REQ_IES;
468 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL);
470 clear_bit(wil_status_fwconnecting, wil->status);
471 set_bit(wil_status_fwconnected, wil->status);
473 /* FIXME FW can transmit only ucast frames to peer */
474 /* FIXME real ring_id instead of hard coded 0 */
475 memcpy(wil->sta[evt->cid].addr, evt->bssid, ETH_ALEN);
476 wil->sta[evt->cid].status = wil_sta_conn_pending;
478 wil->pending_connect_cid = evt->cid;
479 queue_work(wil->wq_service, &wil->connect_worker);
482 static void wmi_evt_disconnect(struct wil6210_priv *wil, int id,
485 struct wmi_disconnect_event *evt = d;
486 u16 reason_code = le16_to_cpu(evt->protocol_reason_status);
488 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n",
489 evt->bssid, reason_code, evt->disconnect_reason);
493 mutex_lock(&wil->mutex);
494 wil6210_disconnect(wil, evt->bssid, reason_code, true);
495 mutex_unlock(&wil->mutex);
499 * Firmware reports EAPOL frame using WME event.
500 * Reconstruct Ethernet frame and deliver it via normal Rx
502 static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id,
505 struct net_device *ndev = wil_to_ndev(wil);
506 struct wmi_eapol_rx_event *evt = d;
507 u16 eapol_len = le16_to_cpu(evt->eapol_len);
508 int sz = eapol_len + ETH_HLEN;
512 struct wil_net_stats *stats = NULL;
514 wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len,
517 cid = wil_find_cid(wil, evt->src_mac);
519 stats = &wil->sta[cid].stats;
521 if (eapol_len > 196) { /* TODO: revisit size limit */
522 wil_err(wil, "EAPOL too large\n");
526 skb = alloc_skb(sz, GFP_KERNEL);
528 wil_err(wil, "Failed to allocate skb\n");
532 eth = (struct ethhdr *)skb_put(skb, ETH_HLEN);
533 memcpy(eth->h_dest, ndev->dev_addr, ETH_ALEN);
534 memcpy(eth->h_source, evt->src_mac, ETH_ALEN);
535 eth->h_proto = cpu_to_be16(ETH_P_PAE);
536 memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len);
537 skb->protocol = eth_type_trans(skb, ndev);
538 if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) {
539 ndev->stats.rx_packets++;
540 ndev->stats.rx_bytes += sz;
543 stats->rx_bytes += sz;
546 ndev->stats.rx_dropped++;
552 static void wil_addba_tx_cid(struct wil6210_priv *wil, u8 cid, u16 wsize)
554 struct vring_tx_data *t;
557 for (i = 0; i < WIL6210_MAX_TX_RINGS; i++) {
558 if (cid != wil->vring2cid_tid[i][0])
560 t = &wil->vring_tx_data[i];
564 wil_addba_tx_request(wil, i, wsize);
568 static void wmi_evt_linkup(struct wil6210_priv *wil, int id, void *d, int len)
570 struct net_device *ndev = wil_to_ndev(wil);
571 struct wmi_data_port_open_event *evt = d;
574 wil_dbg_wmi(wil, "Link UP for CID %d\n", cid);
576 if (cid >= ARRAY_SIZE(wil->sta)) {
577 wil_err(wil, "Link UP for invalid CID %d\n", cid);
581 wil->sta[cid].data_port_open = true;
583 wil_addba_tx_cid(wil, cid, agg_wsize);
584 netif_carrier_on(ndev);
587 static void wmi_evt_linkdown(struct wil6210_priv *wil, int id, void *d, int len)
589 struct net_device *ndev = wil_to_ndev(wil);
590 struct wmi_wbe_link_down_event *evt = d;
593 wil_dbg_wmi(wil, "Link DOWN for CID %d, reason %d\n",
594 cid, le32_to_cpu(evt->reason));
596 if (cid >= ARRAY_SIZE(wil->sta)) {
597 wil_err(wil, "Link DOWN for invalid CID %d\n", cid);
601 wil->sta[cid].data_port_open = false;
602 netif_carrier_off(ndev);
605 static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d,
608 struct wmi_vring_ba_status_event *evt = d;
609 struct vring_tx_data *txdata;
611 wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n",
613 evt->status == WMI_BA_AGREED ? "OK" : "N/A",
614 evt->agg_wsize, __le16_to_cpu(evt->ba_timeout),
615 evt->amsdu ? "+" : "-");
617 if (evt->ringid >= WIL6210_MAX_TX_RINGS) {
618 wil_err(wil, "invalid ring id %d\n", evt->ringid);
622 if (evt->status != WMI_BA_AGREED) {
628 txdata = &wil->vring_tx_data[evt->ringid];
630 txdata->agg_timeout = le16_to_cpu(evt->ba_timeout);
631 txdata->agg_wsize = evt->agg_wsize;
632 txdata->agg_amsdu = evt->amsdu;
633 txdata->addba_in_progress = false;
636 static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d,
639 struct wmi_rcp_addba_req_event *evt = d;
641 wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token,
642 evt->ba_param_set, evt->ba_timeout,
646 static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len)
647 __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock)
649 struct wmi_delba_event *evt = d;
651 u16 reason = __le16_to_cpu(evt->reason);
652 struct wil_sta_info *sta;
653 struct wil_tid_ampdu_rx *r;
656 parse_cidxtid(evt->cidxtid, &cid, &tid);
657 wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n",
659 evt->from_initiator ? "originator" : "recipient",
661 if (!evt->from_initiator) {
663 /* find Tx vring it belongs to */
664 for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) {
665 if ((wil->vring2cid_tid[i][0] == cid) &&
666 (wil->vring2cid_tid[i][1] == tid)) {
667 struct vring_tx_data *txdata =
668 &wil->vring_tx_data[i];
670 wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i);
671 txdata->agg_timeout = 0;
672 txdata->agg_wsize = 0;
673 txdata->addba_in_progress = false;
675 break; /* max. 1 matching ring */
678 if (i >= ARRAY_SIZE(wil->vring2cid_tid))
679 wil_err(wil, "DELBA: unable to find Tx vring\n");
683 sta = &wil->sta[cid];
685 spin_lock_bh(&sta->tid_rx_lock);
687 r = sta->tid_rx[tid];
688 sta->tid_rx[tid] = NULL;
689 wil_tid_ampdu_rx_free(wil, r);
691 spin_unlock_bh(&sta->tid_rx_lock);
694 static const struct {
696 void (*handler)(struct wil6210_priv *wil, int eventid,
697 void *data, int data_len);
698 } wmi_evt_handlers[] = {
699 {WMI_READY_EVENTID, wmi_evt_ready},
700 {WMI_FW_READY_EVENTID, wmi_evt_fw_ready},
701 {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt},
702 {WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete},
703 {WMI_CONNECT_EVENTID, wmi_evt_connect},
704 {WMI_DISCONNECT_EVENTID, wmi_evt_disconnect},
705 {WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx},
706 {WMI_DATA_PORT_OPEN_EVENTID, wmi_evt_linkup},
707 {WMI_WBE_LINKDOWN_EVENTID, wmi_evt_linkdown},
708 {WMI_BA_STATUS_EVENTID, wmi_evt_ba_status},
709 {WMI_RCP_ADDBA_REQ_EVENTID, wmi_evt_addba_rx_req},
710 {WMI_DELBA_EVENTID, wmi_evt_delba},
715 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev
716 * that will be eventually handled by the @wmi_event_worker in the thread
717 * context of thread "wil6210_wmi"
719 void wmi_recv_cmd(struct wil6210_priv *wil)
721 struct wil6210_mbox_ring_desc d_tail;
722 struct wil6210_mbox_hdr hdr;
723 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx;
724 struct pending_wmi_event *evt;
730 if (!test_bit(wil_status_reset_done, wil->status)) {
731 wil_err(wil, "Reset in progress. Cannot handle WMI event\n");
739 r->head = ioread32(wil->csr + HOST_MBOX +
740 offsetof(struct wil6210_mbox_ctl, rx.head));
741 if (r->tail == r->head)
744 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n",
746 /* read cmd descriptor from tail */
747 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail),
748 sizeof(struct wil6210_mbox_ring_desc));
749 if (d_tail.sync == 0) {
750 wil_err(wil, "Mbox evt not owned by FW?\n");
754 /* read cmd header from descriptor */
755 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) {
756 wil_err(wil, "Mbox evt at 0x%08x?\n",
757 le32_to_cpu(d_tail.addr));
760 len = le16_to_cpu(hdr.len);
761 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n",
762 le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type),
765 /* read cmd buffer from descriptor */
766 src = wmi_buffer(wil, d_tail.addr) +
767 sizeof(struct wil6210_mbox_hdr);
768 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event,
769 event.wmi) + len, 4),
774 evt->event.hdr = hdr;
775 cmd = (void *)&evt->event.wmi;
776 wil_memcpy_fromio_32(cmd, src, len);
777 /* mark entry as empty */
778 iowrite32(0, wil->csr + HOSTADDR(r->tail) +
779 offsetof(struct wil6210_mbox_ring_desc, sync));
781 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) &&
782 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) {
783 struct wil6210_mbox_hdr_wmi *wmi = &evt->event.wmi;
784 u16 id = le16_to_cpu(wmi->id);
785 u32 tstamp = le32_to_cpu(wmi->timestamp);
787 wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n",
788 id, wmi->mid, tstamp);
789 trace_wil6210_wmi_event(wmi, &wmi[1],
792 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1,
793 &evt->event.hdr, sizeof(hdr) + len, true);
796 r->tail = r->base + ((r->tail - r->base +
797 sizeof(struct wil6210_mbox_ring_desc)) % r->size);
798 iowrite32(r->tail, wil->csr + HOST_MBOX +
799 offsetof(struct wil6210_mbox_ctl, rx.tail));
801 /* add to the pending list */
802 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
803 list_add_tail(&evt->list, &wil->pending_wmi_ev);
804 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
805 q = queue_work(wil->wmi_wq, &wil->wmi_event_worker);
806 wil_dbg_wmi(wil, "queue_work -> %d\n", q);
808 /* normally, 1 event per IRQ should be processed */
809 wil_dbg_wmi(wil, "%s -> %d events queued\n", __func__, n);
812 int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len,
813 u16 reply_id, void *reply, u8 reply_size, int to_msec)
818 mutex_lock(&wil->wmi_mutex);
820 rc = __wmi_send(wil, cmdid, buf, len);
824 wil->reply_id = reply_id;
825 wil->reply_buf = reply;
826 wil->reply_size = reply_size;
827 remain = wait_for_completion_timeout(&wil->wmi_call,
828 msecs_to_jiffies(to_msec));
830 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n",
831 cmdid, reply_id, to_msec);
835 "wmi_call(0x%04x->0x%04x) completed in %d msec\n",
837 to_msec - jiffies_to_msecs(remain));
840 wil->reply_buf = NULL;
843 mutex_unlock(&wil->wmi_mutex);
848 int wmi_echo(struct wil6210_priv *wil)
850 struct wmi_echo_cmd cmd = {
851 .value = cpu_to_le32(0x12345678),
854 return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd),
855 WMI_ECHO_RSP_EVENTID, NULL, 0, 20);
858 int wmi_set_mac_address(struct wil6210_priv *wil, void *addr)
860 struct wmi_set_mac_address_cmd cmd;
862 memcpy(cmd.mac, addr, ETH_ALEN);
864 wil_dbg_wmi(wil, "Set MAC %pM\n", addr);
866 return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd));
869 int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype, u8 chan)
873 struct wmi_pcp_start_cmd cmd = {
874 .bcon_interval = cpu_to_le16(bi),
875 .network_type = wmi_nettype,
876 .disable_sec_offload = 1,
878 .pcp_max_assoc_sta = max_assoc_sta,
881 struct wil6210_mbox_hdr_wmi wmi;
882 struct wmi_pcp_started_event evt;
885 if (!wil->secure_pcp)
888 if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) ||
889 (cmd.pcp_max_assoc_sta <= 0)) {
891 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n",
892 max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID);
893 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID;
897 * Processing time may be huge, in case of secure AP it takes about
898 * 3500ms for FW to start AP
900 rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd),
901 WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000);
905 if (reply.evt.status != WMI_FW_STATUS_SUCCESS)
911 int wmi_pcp_stop(struct wil6210_priv *wil)
913 return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0,
914 WMI_PCP_STOPPED_EVENTID, NULL, 0, 20);
917 int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid)
919 struct wmi_set_ssid_cmd cmd = {
920 .ssid_len = cpu_to_le32(ssid_len),
923 if (ssid_len > sizeof(cmd.ssid))
926 memcpy(cmd.ssid, ssid, ssid_len);
928 return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd));
931 int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid)
935 struct wil6210_mbox_hdr_wmi wmi;
936 struct wmi_set_ssid_cmd cmd;
938 int len; /* reply.cmd.ssid_len in CPU order */
940 rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID,
941 &reply, sizeof(reply), 20);
945 len = le32_to_cpu(reply.cmd.ssid_len);
946 if (len > sizeof(reply.cmd.ssid))
950 memcpy(ssid, reply.cmd.ssid, len);
955 int wmi_set_channel(struct wil6210_priv *wil, int channel)
957 struct wmi_set_pcp_channel_cmd cmd = {
958 .channel = channel - 1,
961 return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd));
964 int wmi_get_channel(struct wil6210_priv *wil, int *channel)
968 struct wil6210_mbox_hdr_wmi wmi;
969 struct wmi_set_pcp_channel_cmd cmd;
972 rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0,
973 WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20);
977 if (reply.cmd.channel > 3)
980 *channel = reply.cmd.channel + 1;
985 int wmi_p2p_cfg(struct wil6210_priv *wil, int channel)
987 struct wmi_p2p_cfg_cmd cmd = {
988 .discovery_mode = WMI_DISCOVERY_MODE_NON_OFFLOAD,
989 .channel = channel - 1,
992 return wmi_send(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd));
995 int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index,
996 const void *mac_addr)
998 struct wmi_delete_cipher_key_cmd cmd = {
999 .key_index = key_index,
1003 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
1005 return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
1008 int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index,
1009 const void *mac_addr, int key_len, const void *key)
1011 struct wmi_add_cipher_key_cmd cmd = {
1012 .key_index = key_index,
1013 .key_usage = WMI_KEY_USE_PAIRWISE,
1017 if (!key || (key_len > sizeof(cmd.key)))
1020 memcpy(cmd.key, key, key_len);
1022 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
1024 return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
1027 int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie)
1030 u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len;
1031 struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL);
1038 cmd->mgmt_frm_type = type;
1039 /* BUG: FW API define ieLen as u8. Will fix FW */
1040 cmd->ie_len = cpu_to_le16(ie_len);
1041 memcpy(cmd->ie_info, ie, ie_len);
1042 rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len);
1049 * wmi_rxon - turn radio on/off
1050 * @on: turn on if true, off otherwise
1052 * Only switch radio. Channel should be set separately.
1053 * No timeout for rxon - radio turned on forever unless some other call
1056 int wmi_rxon(struct wil6210_priv *wil, bool on)
1060 struct wil6210_mbox_hdr_wmi wmi;
1061 struct wmi_listen_started_event evt;
1064 wil_info(wil, "%s(%s)\n", __func__, on ? "on" : "off");
1067 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0,
1068 WMI_LISTEN_STARTED_EVENTID,
1069 &reply, sizeof(reply), 100);
1070 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS))
1073 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0,
1074 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20);
1080 int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring)
1082 struct wireless_dev *wdev = wil->wdev;
1083 struct net_device *ndev = wil_to_ndev(wil);
1084 struct wmi_cfg_rx_chain_cmd cmd = {
1085 .action = WMI_RX_CHAIN_ADD,
1087 .max_mpdu_size = cpu_to_le16(wil_mtu2macbuf(mtu_max)),
1088 .ring_mem_base = cpu_to_le64(vring->pa),
1089 .ring_size = cpu_to_le16(vring->size),
1091 .mid = 0, /* TODO - what is it? */
1092 .decap_trans_type = WMI_DECAP_TYPE_802_3,
1093 .reorder_type = WMI_RX_SW_REORDER,
1094 .host_thrsh = cpu_to_le16(rx_ring_overflow_thrsh),
1097 struct wil6210_mbox_hdr_wmi wmi;
1098 struct wmi_cfg_rx_chain_done_event evt;
1102 if (wdev->iftype == NL80211_IFTYPE_MONITOR) {
1103 struct ieee80211_channel *ch = wdev->preset_chandef.chan;
1105 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON);
1107 cmd.sniffer_cfg.channel = ch->hw_value - 1;
1108 cmd.sniffer_cfg.phy_info_mode =
1109 cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP);
1110 cmd.sniffer_cfg.phy_support =
1111 cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL)
1112 ? WMI_SNIFFER_CP : WMI_SNIFFER_DP);
1114 /* Initialize offload (in non-sniffer mode).
1115 * Linux IP stack always calculates IP checksum
1116 * HW always calculate TCP/UDP checksum
1118 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS);
1120 /* typical time for secure PCP is 840ms */
1121 rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd),
1122 WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000);
1126 vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr);
1128 wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n",
1129 le32_to_cpu(evt.evt.status), vring->hwtail);
1131 if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS)
1137 int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_m, u32 *t_r)
1140 struct wmi_temp_sense_cmd cmd = {
1141 .measure_marlon_m_en = cpu_to_le32(!!t_m),
1142 .measure_marlon_r_en = cpu_to_le32(!!t_r),
1145 struct wil6210_mbox_hdr_wmi wmi;
1146 struct wmi_temp_sense_done_event evt;
1149 rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd),
1150 WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100);
1155 *t_m = le32_to_cpu(reply.evt.marlon_m_t1000);
1157 *t_r = le32_to_cpu(reply.evt.marlon_r_t1000);
1162 int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, u16 reason)
1164 struct wmi_disconnect_sta_cmd cmd = {
1165 .disconnect_reason = cpu_to_le16(reason),
1167 memcpy(cmd.dst_mac, mac, ETH_ALEN);
1169 wil_dbg_wmi(wil, "%s(%pM, reason %d)\n", __func__, mac, reason);
1171 return wmi_send(wil, WMI_DISCONNECT_STA_CMDID, &cmd, sizeof(cmd));
1174 int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout)
1176 struct wmi_vring_ba_en_cmd cmd = {
1178 .agg_max_wsize = size,
1179 .ba_timeout = cpu_to_le16(timeout),
1183 wil_dbg_wmi(wil, "%s(ring %d size %d timeout %d)\n", __func__,
1184 ringid, size, timeout);
1186 return wmi_send(wil, WMI_VRING_BA_EN_CMDID, &cmd, sizeof(cmd));
1189 int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason)
1191 struct wmi_vring_ba_dis_cmd cmd = {
1193 .reason = cpu_to_le16(reason),
1196 wil_dbg_wmi(wil, "%s(ring %d reason %d)\n", __func__,
1199 return wmi_send(wil, WMI_VRING_BA_DIS_CMDID, &cmd, sizeof(cmd));
1202 int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason)
1204 struct wmi_rcp_delba_cmd cmd = {
1206 .reason = cpu_to_le16(reason),
1209 wil_dbg_wmi(wil, "%s(CID %d TID %d reason %d)\n", __func__,
1210 cidxtid & 0xf, (cidxtid >> 4) & 0xf, reason);
1212 return wmi_send(wil, WMI_RCP_DELBA_CMDID, &cmd, sizeof(cmd));
1215 int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token,
1216 u16 status, bool amsdu, u16 agg_wsize, u16 timeout)
1219 struct wmi_rcp_addba_resp_cmd cmd = {
1220 .cidxtid = mk_cidxtid(cid, tid),
1221 .dialog_token = token,
1222 .status_code = cpu_to_le16(status),
1223 /* bit 0: A-MSDU supported
1224 * bit 1: policy (should be 0 for us)
1226 * bits 6..15: buffer size
1228 .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) |
1230 .ba_timeout = cpu_to_le16(timeout),
1233 struct wil6210_mbox_hdr_wmi wmi;
1234 struct wmi_rcp_addba_resp_sent_event evt;
1238 "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s\n",
1239 cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-");
1241 rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, &cmd, sizeof(cmd),
1242 WMI_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply), 100);
1246 if (reply.evt.status) {
1247 wil_err(wil, "ADDBA response failed with status %d\n",
1248 le16_to_cpu(reply.evt.status));
1255 void wmi_event_flush(struct wil6210_priv *wil)
1257 struct pending_wmi_event *evt, *t;
1259 wil_dbg_wmi(wil, "%s()\n", __func__);
1261 list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) {
1262 list_del(&evt->list);
1267 static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id,
1272 for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) {
1273 if (wmi_evt_handlers[i].eventid == id) {
1274 wmi_evt_handlers[i].handler(wil, id, d, len);
1282 static void wmi_event_handle(struct wil6210_priv *wil,
1283 struct wil6210_mbox_hdr *hdr)
1285 u16 len = le16_to_cpu(hdr->len);
1287 if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) &&
1288 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) {
1289 struct wil6210_mbox_hdr_wmi *wmi = (void *)(&hdr[1]);
1290 void *evt_data = (void *)(&wmi[1]);
1291 u16 id = le16_to_cpu(wmi->id);
1293 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n",
1295 /* check if someone waits for this event */
1296 if (wil->reply_id && wil->reply_id == id) {
1297 if (wil->reply_buf) {
1298 memcpy(wil->reply_buf, wmi,
1299 min(len, wil->reply_size));
1301 wmi_evt_call_handler(wil, id, evt_data,
1302 len - sizeof(*wmi));
1304 wil_dbg_wmi(wil, "Complete WMI 0x%04x\n", id);
1305 complete(&wil->wmi_call);
1308 /* unsolicited event */
1309 /* search for handler */
1310 if (!wmi_evt_call_handler(wil, id, evt_data,
1311 len - sizeof(*wmi))) {
1312 wil_err(wil, "Unhandled event 0x%04x\n", id);
1315 wil_err(wil, "Unknown event type\n");
1316 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1,
1317 hdr, sizeof(*hdr) + len, true);
1322 * Retrieve next WMI event from the pending list
1324 static struct list_head *next_wmi_ev(struct wil6210_priv *wil)
1327 struct list_head *ret = NULL;
1329 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
1331 if (!list_empty(&wil->pending_wmi_ev)) {
1332 ret = wil->pending_wmi_ev.next;
1336 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
1342 * Handler for the WMI events
1344 void wmi_event_worker(struct work_struct *work)
1346 struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
1348 struct pending_wmi_event *evt;
1349 struct list_head *lh;
1351 wil_dbg_wmi(wil, "Start %s\n", __func__);
1352 while ((lh = next_wmi_ev(wil)) != NULL) {
1353 evt = list_entry(lh, struct pending_wmi_event, list);
1354 wmi_event_handle(wil, &evt->event.hdr);
1357 wil_dbg_wmi(wil, "Finished %s\n", __func__);