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 set_bit(wil_status_fwready
, &wil
->status
);
303 /* reuse wmi_ready for the firmware ready indication */
304 complete(&wil
->wmi_ready
);
307 static void wmi_evt_rx_mgmt(struct wil6210_priv
*wil
, int id
, void *d
, int len
)
309 struct wmi_rx_mgmt_packet_event
*data
= d
;
310 struct wiphy
*wiphy
= wil_to_wiphy(wil
);
311 struct ieee80211_mgmt
*rx_mgmt_frame
=
312 (struct ieee80211_mgmt
*)data
->payload
;
313 int ch_no
= data
->info
.channel
+1;
314 u32 freq
= ieee80211_channel_to_frequency(ch_no
,
315 IEEE80211_BAND_60GHZ
);
316 struct ieee80211_channel
*channel
= ieee80211_get_channel(wiphy
, freq
);
317 s32 signal
= data
->info
.sqi
;
318 __le16 fc
= rx_mgmt_frame
->frame_control
;
319 u32 d_len
= le32_to_cpu(data
->info
.len
);
320 u16 d_status
= le16_to_cpu(data
->info
.status
);
322 wil_dbg_wmi(wil
, "MGMT: channel %d MCS %d SNR %d SQI %d%%\n",
323 data
->info
.channel
, data
->info
.mcs
, data
->info
.snr
,
325 wil_dbg_wmi(wil
, "status 0x%04x len %d fc 0x%04x\n", d_status
, d_len
,
327 wil_dbg_wmi(wil
, "qid %d mid %d cid %d\n",
328 data
->info
.qid
, data
->info
.mid
, data
->info
.cid
);
331 wil_err(wil
, "Frame on unsupported channel\n");
335 if (ieee80211_is_beacon(fc
) || ieee80211_is_probe_resp(fc
)) {
336 struct cfg80211_bss
*bss
;
337 u64 tsf
= le64_to_cpu(rx_mgmt_frame
->u
.beacon
.timestamp
);
338 u16 cap
= le16_to_cpu(rx_mgmt_frame
->u
.beacon
.capab_info
);
339 u16 bi
= le16_to_cpu(rx_mgmt_frame
->u
.beacon
.beacon_int
);
340 const u8
*ie_buf
= rx_mgmt_frame
->u
.beacon
.variable
;
341 size_t ie_len
= d_len
- offsetof(struct ieee80211_mgmt
,
343 wil_dbg_wmi(wil
, "Capability info : 0x%04x\n", cap
);
344 wil_dbg_wmi(wil
, "TSF : 0x%016llx\n", tsf
);
345 wil_dbg_wmi(wil
, "Beacon interval : %d\n", bi
);
346 wil_hex_dump_wmi("IE ", DUMP_PREFIX_OFFSET
, 16, 1, ie_buf
,
349 bss
= cfg80211_inform_bss_frame(wiphy
, channel
, rx_mgmt_frame
,
350 d_len
, signal
, GFP_KERNEL
);
352 wil_dbg_wmi(wil
, "Added BSS %pM\n",
353 rx_mgmt_frame
->bssid
);
354 cfg80211_put_bss(wiphy
, bss
);
356 wil_err(wil
, "cfg80211_inform_bss_frame() failed\n");
359 cfg80211_rx_mgmt(wil
->wdev
, freq
, signal
,
360 (void *)rx_mgmt_frame
, d_len
, 0);
364 static void wmi_evt_scan_complete(struct wil6210_priv
*wil
, int id
,
367 if (wil
->scan_request
) {
368 struct wmi_scan_complete_event
*data
= d
;
369 bool aborted
= (data
->status
!= WMI_SCAN_SUCCESS
);
371 wil_dbg_wmi(wil
, "SCAN_COMPLETE(0x%08x)\n", data
->status
);
372 wil_dbg_misc(wil
, "Complete scan_request 0x%p aborted %d\n",
373 wil
->scan_request
, aborted
);
375 del_timer_sync(&wil
->scan_timer
);
376 cfg80211_scan_done(wil
->scan_request
, aborted
);
377 wil
->scan_request
= NULL
;
379 wil_err(wil
, "SCAN_COMPLETE while not scanning\n");
383 static void wmi_evt_connect(struct wil6210_priv
*wil
, int id
, void *d
, int len
)
385 struct net_device
*ndev
= wil_to_ndev(wil
);
386 struct wireless_dev
*wdev
= wil
->wdev
;
387 struct wmi_connect_event
*evt
= d
;
388 int ch
; /* channel number */
389 struct station_info sinfo
;
390 u8
*assoc_req_ie
, *assoc_resp_ie
;
391 size_t assoc_req_ielen
, assoc_resp_ielen
;
392 /* capinfo(u16) + listen_interval(u16) + IEs */
393 const size_t assoc_req_ie_offset
= sizeof(u16
) * 2;
394 /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */
395 const size_t assoc_resp_ie_offset
= sizeof(u16
) * 3;
397 if (len
< sizeof(*evt
)) {
398 wil_err(wil
, "Connect event too short : %d bytes\n", len
);
401 if (len
!= sizeof(*evt
) + evt
->beacon_ie_len
+ evt
->assoc_req_len
+
402 evt
->assoc_resp_len
) {
404 "Connect event corrupted : %d != %d + %d + %d + %d\n",
405 len
, (int)sizeof(*evt
), evt
->beacon_ie_len
,
406 evt
->assoc_req_len
, evt
->assoc_resp_len
);
409 if (evt
->cid
>= WIL6210_MAX_CID
) {
410 wil_err(wil
, "Connect CID invalid : %d\n", evt
->cid
);
414 ch
= evt
->channel
+ 1;
415 wil_dbg_wmi(wil
, "Connect %pM channel [%d] cid %d\n",
416 evt
->bssid
, ch
, evt
->cid
);
417 wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET
, 16, 1,
418 evt
->assoc_info
, len
- sizeof(*evt
), true);
420 /* figure out IE's */
421 assoc_req_ie
= &evt
->assoc_info
[evt
->beacon_ie_len
+
422 assoc_req_ie_offset
];
423 assoc_req_ielen
= evt
->assoc_req_len
- assoc_req_ie_offset
;
424 if (evt
->assoc_req_len
<= assoc_req_ie_offset
) {
429 assoc_resp_ie
= &evt
->assoc_info
[evt
->beacon_ie_len
+
431 assoc_resp_ie_offset
];
432 assoc_resp_ielen
= evt
->assoc_resp_len
- assoc_resp_ie_offset
;
433 if (evt
->assoc_resp_len
<= assoc_resp_ie_offset
) {
434 assoc_resp_ie
= NULL
;
435 assoc_resp_ielen
= 0;
438 if ((wdev
->iftype
== NL80211_IFTYPE_STATION
) ||
439 (wdev
->iftype
== NL80211_IFTYPE_P2P_CLIENT
)) {
440 if (!test_bit(wil_status_fwconnecting
, &wil
->status
)) {
441 wil_err(wil
, "Not in connecting state\n");
444 del_timer_sync(&wil
->connect_timer
);
445 cfg80211_connect_result(ndev
, evt
->bssid
,
446 assoc_req_ie
, assoc_req_ielen
,
447 assoc_resp_ie
, assoc_resp_ielen
,
448 WLAN_STATUS_SUCCESS
, GFP_KERNEL
);
450 } else if ((wdev
->iftype
== NL80211_IFTYPE_AP
) ||
451 (wdev
->iftype
== NL80211_IFTYPE_P2P_GO
)) {
452 memset(&sinfo
, 0, sizeof(sinfo
));
454 sinfo
.generation
= wil
->sinfo_gen
++;
457 sinfo
.assoc_req_ies
= assoc_req_ie
;
458 sinfo
.assoc_req_ies_len
= assoc_req_ielen
;
459 sinfo
.filled
|= STATION_INFO_ASSOC_REQ_IES
;
462 cfg80211_new_sta(ndev
, evt
->bssid
, &sinfo
, GFP_KERNEL
);
464 clear_bit(wil_status_fwconnecting
, &wil
->status
);
465 set_bit(wil_status_fwconnected
, &wil
->status
);
467 /* FIXME FW can transmit only ucast frames to peer */
468 /* FIXME real ring_id instead of hard coded 0 */
469 memcpy(wil
->sta
[evt
->cid
].addr
, evt
->bssid
, ETH_ALEN
);
470 wil
->sta
[evt
->cid
].status
= wil_sta_conn_pending
;
472 wil
->pending_connect_cid
= evt
->cid
;
473 queue_work(wil
->wmi_wq_conn
, &wil
->connect_worker
);
476 static void wmi_evt_disconnect(struct wil6210_priv
*wil
, int id
,
479 struct wmi_disconnect_event
*evt
= d
;
481 wil_dbg_wmi(wil
, "Disconnect %pM reason %d proto %d wmi\n",
483 evt
->protocol_reason_status
, evt
->disconnect_reason
);
487 mutex_lock(&wil
->mutex
);
488 wil6210_disconnect(wil
, evt
->bssid
);
489 mutex_unlock(&wil
->mutex
);
493 * Firmware reports EAPOL frame using WME event.
494 * Reconstruct Ethernet frame and deliver it via normal Rx
496 static void wmi_evt_eapol_rx(struct wil6210_priv
*wil
, int id
,
499 struct net_device
*ndev
= wil_to_ndev(wil
);
500 struct wmi_eapol_rx_event
*evt
= d
;
501 u16 eapol_len
= le16_to_cpu(evt
->eapol_len
);
502 int sz
= eapol_len
+ ETH_HLEN
;
506 struct wil_net_stats
*stats
= NULL
;
508 wil_dbg_wmi(wil
, "EAPOL len %d from %pM\n", eapol_len
,
511 cid
= wil_find_cid(wil
, evt
->src_mac
);
513 stats
= &wil
->sta
[cid
].stats
;
515 if (eapol_len
> 196) { /* TODO: revisit size limit */
516 wil_err(wil
, "EAPOL too large\n");
520 skb
= alloc_skb(sz
, GFP_KERNEL
);
522 wil_err(wil
, "Failed to allocate skb\n");
526 eth
= (struct ethhdr
*)skb_put(skb
, ETH_HLEN
);
527 memcpy(eth
->h_dest
, ndev
->dev_addr
, ETH_ALEN
);
528 memcpy(eth
->h_source
, evt
->src_mac
, ETH_ALEN
);
529 eth
->h_proto
= cpu_to_be16(ETH_P_PAE
);
530 memcpy(skb_put(skb
, eapol_len
), evt
->eapol
, eapol_len
);
531 skb
->protocol
= eth_type_trans(skb
, ndev
);
532 if (likely(netif_rx_ni(skb
) == NET_RX_SUCCESS
)) {
533 ndev
->stats
.rx_packets
++;
534 ndev
->stats
.rx_bytes
+= sz
;
537 stats
->rx_bytes
+= sz
;
540 ndev
->stats
.rx_dropped
++;
546 static void wmi_evt_linkup(struct wil6210_priv
*wil
, int id
, void *d
, int len
)
548 struct net_device
*ndev
= wil_to_ndev(wil
);
549 struct wmi_data_port_open_event
*evt
= d
;
552 wil_dbg_wmi(wil
, "Link UP for CID %d\n", cid
);
554 if (cid
>= ARRAY_SIZE(wil
->sta
)) {
555 wil_err(wil
, "Link UP for invalid CID %d\n", cid
);
559 wil
->sta
[cid
].data_port_open
= true;
560 netif_carrier_on(ndev
);
563 static void wmi_evt_linkdown(struct wil6210_priv
*wil
, int id
, void *d
, int len
)
565 struct net_device
*ndev
= wil_to_ndev(wil
);
566 struct wmi_wbe_link_down_event
*evt
= d
;
569 wil_dbg_wmi(wil
, "Link DOWN for CID %d, reason %d\n",
570 cid
, le32_to_cpu(evt
->reason
));
572 if (cid
>= ARRAY_SIZE(wil
->sta
)) {
573 wil_err(wil
, "Link DOWN for invalid CID %d\n", cid
);
577 wil
->sta
[cid
].data_port_open
= false;
578 netif_carrier_off(ndev
);
581 static void wmi_evt_ba_status(struct wil6210_priv
*wil
, int id
, void *d
,
584 struct wmi_vring_ba_status_event
*evt
= d
;
585 struct wil_sta_info
*sta
;
588 /* TODO: use Rx BA status, not Tx one */
590 wil_dbg_wmi(wil
, "BACK[%d] %s {%d} timeout %d\n",
592 evt
->status
== WMI_BA_AGREED
? "OK" : "N/A",
593 evt
->agg_wsize
, __le16_to_cpu(evt
->ba_timeout
));
595 if (evt
->ringid
>= WIL6210_MAX_TX_RINGS
) {
596 wil_err(wil
, "invalid ring id %d\n", evt
->ringid
);
600 mutex_lock(&wil
->mutex
);
602 cid
= wil
->vring2cid_tid
[evt
->ringid
][0];
603 if (cid
>= WIL6210_MAX_CID
) {
604 wil_err(wil
, "invalid CID %d for vring %d\n", cid
, evt
->ringid
);
608 sta
= &wil
->sta
[cid
];
609 if (sta
->status
== wil_sta_unused
) {
610 wil_err(wil
, "CID %d unused\n", cid
);
614 wil_dbg_wmi(wil
, "BACK for CID %d %pM\n", cid
, sta
->addr
);
615 for (i
= 0; i
< WIL_STA_TID_NUM
; i
++) {
616 struct wil_tid_ampdu_rx
*r
;
619 spin_lock_irqsave(&sta
->tid_rx_lock
, flags
);
622 sta
->tid_rx
[i
] = NULL
;
623 wil_tid_ampdu_rx_free(wil
, r
);
625 spin_unlock_irqrestore(&sta
->tid_rx_lock
, flags
);
627 if ((evt
->status
== WMI_BA_AGREED
) && evt
->agg_wsize
)
628 sta
->tid_rx
[i
] = wil_tid_ampdu_rx_alloc(wil
,
633 mutex_unlock(&wil
->mutex
);
636 static const struct {
638 void (*handler
)(struct wil6210_priv
*wil
, int eventid
,
639 void *data
, int data_len
);
640 } wmi_evt_handlers
[] = {
641 {WMI_READY_EVENTID
, wmi_evt_ready
},
642 {WMI_FW_READY_EVENTID
, wmi_evt_fw_ready
},
643 {WMI_RX_MGMT_PACKET_EVENTID
, wmi_evt_rx_mgmt
},
644 {WMI_SCAN_COMPLETE_EVENTID
, wmi_evt_scan_complete
},
645 {WMI_CONNECT_EVENTID
, wmi_evt_connect
},
646 {WMI_DISCONNECT_EVENTID
, wmi_evt_disconnect
},
647 {WMI_EAPOL_RX_EVENTID
, wmi_evt_eapol_rx
},
648 {WMI_DATA_PORT_OPEN_EVENTID
, wmi_evt_linkup
},
649 {WMI_WBE_LINKDOWN_EVENTID
, wmi_evt_linkdown
},
650 {WMI_BA_STATUS_EVENTID
, wmi_evt_ba_status
},
655 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev
656 * that will be eventually handled by the @wmi_event_worker in the thread
657 * context of thread "wil6210_wmi"
659 void wmi_recv_cmd(struct wil6210_priv
*wil
)
661 struct wil6210_mbox_ring_desc d_tail
;
662 struct wil6210_mbox_hdr hdr
;
663 struct wil6210_mbox_ring
*r
= &wil
->mbox_ctl
.rx
;
664 struct pending_wmi_event
*evt
;
670 if (!test_bit(wil_status_reset_done
, &wil
->status
)) {
671 wil_err(wil
, "Reset in progress. Cannot handle WMI event\n");
679 r
->head
= ioread32(wil
->csr
+ HOST_MBOX
+
680 offsetof(struct wil6210_mbox_ctl
, rx
.head
));
681 if (r
->tail
== r
->head
)
684 wil_dbg_wmi(wil
, "Mbox head %08x tail %08x\n",
686 /* read cmd descriptor from tail */
687 wil_memcpy_fromio_32(&d_tail
, wil
->csr
+ HOSTADDR(r
->tail
),
688 sizeof(struct wil6210_mbox_ring_desc
));
689 if (d_tail
.sync
== 0) {
690 wil_err(wil
, "Mbox evt not owned by FW?\n");
694 /* read cmd header from descriptor */
695 if (0 != wmi_read_hdr(wil
, d_tail
.addr
, &hdr
)) {
696 wil_err(wil
, "Mbox evt at 0x%08x?\n",
697 le32_to_cpu(d_tail
.addr
));
700 len
= le16_to_cpu(hdr
.len
);
701 wil_dbg_wmi(wil
, "Mbox evt %04x %04x %04x %02x\n",
702 le16_to_cpu(hdr
.seq
), len
, le16_to_cpu(hdr
.type
),
705 /* read cmd buffer from descriptor */
706 src
= wmi_buffer(wil
, d_tail
.addr
) +
707 sizeof(struct wil6210_mbox_hdr
);
708 evt
= kmalloc(ALIGN(offsetof(struct pending_wmi_event
,
709 event
.wmi
) + len
, 4),
714 evt
->event
.hdr
= hdr
;
715 cmd
= (void *)&evt
->event
.wmi
;
716 wil_memcpy_fromio_32(cmd
, src
, len
);
717 /* mark entry as empty */
718 iowrite32(0, wil
->csr
+ HOSTADDR(r
->tail
) +
719 offsetof(struct wil6210_mbox_ring_desc
, sync
));
721 if ((hdr
.type
== WIL_MBOX_HDR_TYPE_WMI
) &&
722 (len
>= sizeof(struct wil6210_mbox_hdr_wmi
))) {
723 struct wil6210_mbox_hdr_wmi
*wmi
= &evt
->event
.wmi
;
724 u16 id
= le16_to_cpu(wmi
->id
);
725 u32 tstamp
= le32_to_cpu(wmi
->timestamp
);
727 wil_dbg_wmi(wil
, "WMI event 0x%04x MID %d @%d msec\n",
728 id
, wmi
->mid
, tstamp
);
729 trace_wil6210_wmi_event(wmi
, &wmi
[1],
732 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET
, 16, 1,
733 &evt
->event
.hdr
, sizeof(hdr
) + len
, true);
736 r
->tail
= r
->base
+ ((r
->tail
- r
->base
+
737 sizeof(struct wil6210_mbox_ring_desc
)) % r
->size
);
738 iowrite32(r
->tail
, wil
->csr
+ HOST_MBOX
+
739 offsetof(struct wil6210_mbox_ctl
, rx
.tail
));
741 /* add to the pending list */
742 spin_lock_irqsave(&wil
->wmi_ev_lock
, flags
);
743 list_add_tail(&evt
->list
, &wil
->pending_wmi_ev
);
744 spin_unlock_irqrestore(&wil
->wmi_ev_lock
, flags
);
745 q
= queue_work(wil
->wmi_wq
, &wil
->wmi_event_worker
);
746 wil_dbg_wmi(wil
, "queue_work -> %d\n", q
);
748 /* normally, 1 event per IRQ should be processed */
749 wil_dbg_wmi(wil
, "%s -> %d events queued\n", __func__
, n
);
752 int wmi_call(struct wil6210_priv
*wil
, u16 cmdid
, void *buf
, u16 len
,
753 u16 reply_id
, void *reply
, u8 reply_size
, int to_msec
)
758 mutex_lock(&wil
->wmi_mutex
);
760 rc
= __wmi_send(wil
, cmdid
, buf
, len
);
764 wil
->reply_id
= reply_id
;
765 wil
->reply_buf
= reply
;
766 wil
->reply_size
= reply_size
;
767 remain
= wait_for_completion_timeout(&wil
->wmi_ready
,
768 msecs_to_jiffies(to_msec
));
770 wil_err(wil
, "wmi_call(0x%04x->0x%04x) timeout %d msec\n",
771 cmdid
, reply_id
, to_msec
);
775 "wmi_call(0x%04x->0x%04x) completed in %d msec\n",
777 to_msec
- jiffies_to_msecs(remain
));
780 wil
->reply_buf
= NULL
;
783 mutex_unlock(&wil
->wmi_mutex
);
788 int wmi_echo(struct wil6210_priv
*wil
)
790 struct wmi_echo_cmd cmd
= {
791 .value
= cpu_to_le32(0x12345678),
794 return wmi_call(wil
, WMI_ECHO_CMDID
, &cmd
, sizeof(cmd
),
795 WMI_ECHO_RSP_EVENTID
, NULL
, 0, 20);
798 int wmi_set_mac_address(struct wil6210_priv
*wil
, void *addr
)
800 struct wmi_set_mac_address_cmd cmd
;
802 memcpy(cmd
.mac
, addr
, ETH_ALEN
);
804 wil_dbg_wmi(wil
, "Set MAC %pM\n", addr
);
806 return wmi_send(wil
, WMI_SET_MAC_ADDRESS_CMDID
, &cmd
, sizeof(cmd
));
809 int wmi_pcp_start(struct wil6210_priv
*wil
, int bi
, u8 wmi_nettype
, u8 chan
)
813 struct wmi_pcp_start_cmd cmd
= {
814 .bcon_interval
= cpu_to_le16(bi
),
815 .network_type
= wmi_nettype
,
816 .disable_sec_offload
= 1,
818 .pcp_max_assoc_sta
= max_assoc_sta
,
821 struct wil6210_mbox_hdr_wmi wmi
;
822 struct wmi_pcp_started_event evt
;
825 if (!wil
->secure_pcp
)
828 if ((cmd
.pcp_max_assoc_sta
> WIL6210_MAX_CID
) ||
829 (cmd
.pcp_max_assoc_sta
<= 0)) {
831 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n",
832 max_assoc_sta
, WIL6210_MAX_CID
, WIL6210_MAX_CID
);
833 cmd
.pcp_max_assoc_sta
= WIL6210_MAX_CID
;
837 * Processing time may be huge, in case of secure AP it takes about
838 * 3500ms for FW to start AP
840 rc
= wmi_call(wil
, WMI_PCP_START_CMDID
, &cmd
, sizeof(cmd
),
841 WMI_PCP_STARTED_EVENTID
, &reply
, sizeof(reply
), 5000);
845 if (reply
.evt
.status
!= WMI_FW_STATUS_SUCCESS
)
851 int wmi_pcp_stop(struct wil6210_priv
*wil
)
853 return wmi_call(wil
, WMI_PCP_STOP_CMDID
, NULL
, 0,
854 WMI_PCP_STOPPED_EVENTID
, NULL
, 0, 20);
857 int wmi_set_ssid(struct wil6210_priv
*wil
, u8 ssid_len
, const void *ssid
)
859 struct wmi_set_ssid_cmd cmd
= {
860 .ssid_len
= cpu_to_le32(ssid_len
),
863 if (ssid_len
> sizeof(cmd
.ssid
))
866 memcpy(cmd
.ssid
, ssid
, ssid_len
);
868 return wmi_send(wil
, WMI_SET_SSID_CMDID
, &cmd
, sizeof(cmd
));
871 int wmi_get_ssid(struct wil6210_priv
*wil
, u8
*ssid_len
, void *ssid
)
875 struct wil6210_mbox_hdr_wmi wmi
;
876 struct wmi_set_ssid_cmd cmd
;
878 int len
; /* reply.cmd.ssid_len in CPU order */
880 rc
= wmi_call(wil
, WMI_GET_SSID_CMDID
, NULL
, 0, WMI_GET_SSID_EVENTID
,
881 &reply
, sizeof(reply
), 20);
885 len
= le32_to_cpu(reply
.cmd
.ssid_len
);
886 if (len
> sizeof(reply
.cmd
.ssid
))
890 memcpy(ssid
, reply
.cmd
.ssid
, len
);
895 int wmi_set_channel(struct wil6210_priv
*wil
, int channel
)
897 struct wmi_set_pcp_channel_cmd cmd
= {
898 .channel
= channel
- 1,
901 return wmi_send(wil
, WMI_SET_PCP_CHANNEL_CMDID
, &cmd
, sizeof(cmd
));
904 int wmi_get_channel(struct wil6210_priv
*wil
, int *channel
)
908 struct wil6210_mbox_hdr_wmi wmi
;
909 struct wmi_set_pcp_channel_cmd cmd
;
912 rc
= wmi_call(wil
, WMI_GET_PCP_CHANNEL_CMDID
, NULL
, 0,
913 WMI_GET_PCP_CHANNEL_EVENTID
, &reply
, sizeof(reply
), 20);
917 if (reply
.cmd
.channel
> 3)
920 *channel
= reply
.cmd
.channel
+ 1;
925 int wmi_p2p_cfg(struct wil6210_priv
*wil
, int channel
)
927 struct wmi_p2p_cfg_cmd cmd
= {
928 .discovery_mode
= WMI_DISCOVERY_MODE_NON_OFFLOAD
,
929 .channel
= channel
- 1,
932 return wmi_send(wil
, WMI_P2P_CFG_CMDID
, &cmd
, sizeof(cmd
));
935 int wmi_del_cipher_key(struct wil6210_priv
*wil
, u8 key_index
,
936 const void *mac_addr
)
938 struct wmi_delete_cipher_key_cmd cmd
= {
939 .key_index
= key_index
,
943 memcpy(cmd
.mac
, mac_addr
, WMI_MAC_LEN
);
945 return wmi_send(wil
, WMI_DELETE_CIPHER_KEY_CMDID
, &cmd
, sizeof(cmd
));
948 int wmi_add_cipher_key(struct wil6210_priv
*wil
, u8 key_index
,
949 const void *mac_addr
, int key_len
, const void *key
)
951 struct wmi_add_cipher_key_cmd cmd
= {
952 .key_index
= key_index
,
953 .key_usage
= WMI_KEY_USE_PAIRWISE
,
957 if (!key
|| (key_len
> sizeof(cmd
.key
)))
960 memcpy(cmd
.key
, key
, key_len
);
962 memcpy(cmd
.mac
, mac_addr
, WMI_MAC_LEN
);
964 return wmi_send(wil
, WMI_ADD_CIPHER_KEY_CMDID
, &cmd
, sizeof(cmd
));
967 int wmi_set_ie(struct wil6210_priv
*wil
, u8 type
, u16 ie_len
, const void *ie
)
970 u16 len
= sizeof(struct wmi_set_appie_cmd
) + ie_len
;
971 struct wmi_set_appie_cmd
*cmd
= kzalloc(len
, GFP_KERNEL
);
976 cmd
->mgmt_frm_type
= type
;
977 /* BUG: FW API define ieLen as u8. Will fix FW */
978 cmd
->ie_len
= cpu_to_le16(ie_len
);
979 memcpy(cmd
->ie_info
, ie
, ie_len
);
980 rc
= wmi_send(wil
, WMI_SET_APPIE_CMDID
, cmd
, len
);
987 * wmi_rxon - turn radio on/off
988 * @on: turn on if true, off otherwise
990 * Only switch radio. Channel should be set separately.
991 * No timeout for rxon - radio turned on forever unless some other call
994 int wmi_rxon(struct wil6210_priv
*wil
, bool on
)
998 struct wil6210_mbox_hdr_wmi wmi
;
999 struct wmi_listen_started_event evt
;
1002 wil_info(wil
, "%s(%s)\n", __func__
, on
? "on" : "off");
1005 rc
= wmi_call(wil
, WMI_START_LISTEN_CMDID
, NULL
, 0,
1006 WMI_LISTEN_STARTED_EVENTID
,
1007 &reply
, sizeof(reply
), 100);
1008 if ((rc
== 0) && (reply
.evt
.status
!= WMI_FW_STATUS_SUCCESS
))
1011 rc
= wmi_call(wil
, WMI_DISCOVERY_STOP_CMDID
, NULL
, 0,
1012 WMI_DISCOVERY_STOPPED_EVENTID
, NULL
, 0, 20);
1018 int wmi_rx_chain_add(struct wil6210_priv
*wil
, struct vring
*vring
)
1020 struct wireless_dev
*wdev
= wil
->wdev
;
1021 struct net_device
*ndev
= wil_to_ndev(wil
);
1022 struct wmi_cfg_rx_chain_cmd cmd
= {
1023 .action
= WMI_RX_CHAIN_ADD
,
1025 .max_mpdu_size
= cpu_to_le16(RX_BUF_LEN
),
1026 .ring_mem_base
= cpu_to_le64(vring
->pa
),
1027 .ring_size
= cpu_to_le16(vring
->size
),
1029 .mid
= 0, /* TODO - what is it? */
1030 .decap_trans_type
= WMI_DECAP_TYPE_802_3
,
1031 .reorder_type
= WMI_RX_SW_REORDER
,
1034 struct wil6210_mbox_hdr_wmi wmi
;
1035 struct wmi_cfg_rx_chain_done_event evt
;
1039 if (wdev
->iftype
== NL80211_IFTYPE_MONITOR
) {
1040 struct ieee80211_channel
*ch
= wdev
->preset_chandef
.chan
;
1042 cmd
.sniffer_cfg
.mode
= cpu_to_le32(WMI_SNIFFER_ON
);
1044 cmd
.sniffer_cfg
.channel
= ch
->hw_value
- 1;
1045 cmd
.sniffer_cfg
.phy_info_mode
=
1046 cpu_to_le32(ndev
->type
== ARPHRD_IEEE80211_RADIOTAP
);
1047 cmd
.sniffer_cfg
.phy_support
=
1048 cpu_to_le32((wil
->monitor_flags
& MONITOR_FLAG_CONTROL
)
1049 ? WMI_SNIFFER_CP
: WMI_SNIFFER_DP
);
1051 /* Initialize offload (in non-sniffer mode).
1052 * Linux IP stack always calculates IP checksum
1053 * HW always calculate TCP/UDP checksum
1055 cmd
.l3_l4_ctrl
|= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS
);
1057 /* typical time for secure PCP is 840ms */
1058 rc
= wmi_call(wil
, WMI_CFG_RX_CHAIN_CMDID
, &cmd
, sizeof(cmd
),
1059 WMI_CFG_RX_CHAIN_DONE_EVENTID
, &evt
, sizeof(evt
), 2000);
1063 vring
->hwtail
= le32_to_cpu(evt
.evt
.rx_ring_tail_ptr
);
1065 wil_dbg_misc(wil
, "Rx init: status %d tail 0x%08x\n",
1066 le32_to_cpu(evt
.evt
.status
), vring
->hwtail
);
1068 if (le32_to_cpu(evt
.evt
.status
) != WMI_CFG_RX_CHAIN_SUCCESS
)
1074 int wmi_get_temperature(struct wil6210_priv
*wil
, u32
*t_m
, u32
*t_r
)
1077 struct wmi_temp_sense_cmd cmd
= {
1078 .measure_marlon_m_en
= cpu_to_le32(!!t_m
),
1079 .measure_marlon_r_en
= cpu_to_le32(!!t_r
),
1082 struct wil6210_mbox_hdr_wmi wmi
;
1083 struct wmi_temp_sense_done_event evt
;
1086 rc
= wmi_call(wil
, WMI_TEMP_SENSE_CMDID
, &cmd
, sizeof(cmd
),
1087 WMI_TEMP_SENSE_DONE_EVENTID
, &reply
, sizeof(reply
), 100);
1092 *t_m
= le32_to_cpu(reply
.evt
.marlon_m_t1000
);
1094 *t_r
= le32_to_cpu(reply
.evt
.marlon_r_t1000
);
1099 int wmi_disconnect_sta(struct wil6210_priv
*wil
, const u8
*mac
, u16 reason
)
1101 struct wmi_disconnect_sta_cmd cmd
= {
1102 .disconnect_reason
= cpu_to_le16(reason
),
1104 memcpy(cmd
.dst_mac
, mac
, ETH_ALEN
);
1106 wil_dbg_wmi(wil
, "%s(%pM, reason %d)\n", __func__
, mac
, reason
);
1108 return wmi_send(wil
, WMI_DISCONNECT_STA_CMDID
, &cmd
, sizeof(cmd
));
1111 void wmi_event_flush(struct wil6210_priv
*wil
)
1113 struct pending_wmi_event
*evt
, *t
;
1115 wil_dbg_wmi(wil
, "%s()\n", __func__
);
1117 list_for_each_entry_safe(evt
, t
, &wil
->pending_wmi_ev
, list
) {
1118 list_del(&evt
->list
);
1123 static bool wmi_evt_call_handler(struct wil6210_priv
*wil
, int id
,
1128 for (i
= 0; i
< ARRAY_SIZE(wmi_evt_handlers
); i
++) {
1129 if (wmi_evt_handlers
[i
].eventid
== id
) {
1130 wmi_evt_handlers
[i
].handler(wil
, id
, d
, len
);
1138 static void wmi_event_handle(struct wil6210_priv
*wil
,
1139 struct wil6210_mbox_hdr
*hdr
)
1141 u16 len
= le16_to_cpu(hdr
->len
);
1143 if ((hdr
->type
== WIL_MBOX_HDR_TYPE_WMI
) &&
1144 (len
>= sizeof(struct wil6210_mbox_hdr_wmi
))) {
1145 struct wil6210_mbox_hdr_wmi
*wmi
= (void *)(&hdr
[1]);
1146 void *evt_data
= (void *)(&wmi
[1]);
1147 u16 id
= le16_to_cpu(wmi
->id
);
1149 wil_dbg_wmi(wil
, "Handle WMI 0x%04x (reply_id 0x%04x)\n",
1151 /* check if someone waits for this event */
1152 if (wil
->reply_id
&& wil
->reply_id
== id
) {
1153 if (wil
->reply_buf
) {
1154 memcpy(wil
->reply_buf
, wmi
,
1155 min(len
, wil
->reply_size
));
1157 wmi_evt_call_handler(wil
, id
, evt_data
,
1158 len
- sizeof(*wmi
));
1160 wil_dbg_wmi(wil
, "Complete WMI 0x%04x\n", id
);
1161 complete(&wil
->wmi_ready
);
1164 /* unsolicited event */
1165 /* search for handler */
1166 if (!wmi_evt_call_handler(wil
, id
, evt_data
,
1167 len
- sizeof(*wmi
))) {
1168 wil_err(wil
, "Unhandled event 0x%04x\n", id
);
1171 wil_err(wil
, "Unknown event type\n");
1172 print_hex_dump(KERN_ERR
, "evt?? ", DUMP_PREFIX_OFFSET
, 16, 1,
1173 hdr
, sizeof(*hdr
) + len
, true);
1178 * Retrieve next WMI event from the pending list
1180 static struct list_head
*next_wmi_ev(struct wil6210_priv
*wil
)
1183 struct list_head
*ret
= NULL
;
1185 spin_lock_irqsave(&wil
->wmi_ev_lock
, flags
);
1187 if (!list_empty(&wil
->pending_wmi_ev
)) {
1188 ret
= wil
->pending_wmi_ev
.next
;
1192 spin_unlock_irqrestore(&wil
->wmi_ev_lock
, flags
);
1198 * Handler for the WMI events
1200 void wmi_event_worker(struct work_struct
*work
)
1202 struct wil6210_priv
*wil
= container_of(work
, struct wil6210_priv
,
1204 struct pending_wmi_event
*evt
;
1205 struct list_head
*lh
;
1207 wil_dbg_wmi(wil
, "Start %s\n", __func__
);
1208 while ((lh
= next_wmi_ev(wil
)) != NULL
) {
1209 evt
= list_entry(lh
, struct pending_wmi_event
, list
);
1210 wmi_event_handle(wil
, &evt
->event
.hdr
);
1213 wil_dbg_wmi(wil
, "Finished %s\n", __func__
);