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7#include <linux/irq.h>
8#include <linux/kthread.h>
9#include <linux/firmware.h>
10#include <linux/netdevice.h>
11#include <linux/inetdevice.h>
12
13#include "wilc_wfi_cfgoperations.h"
14
15#define WILC_MULTICAST_TABLE_SIZE 8
16
17static irqreturn_t isr_uh_routine(int irq, void *user_data)
18{
19 struct net_device *dev = user_data;
20 struct wilc_vif *vif = netdev_priv(dev);
21 struct wilc *wilc = vif->wilc;
22
23 if (wilc->close) {
24 netdev_err(dev, "Can't handle UH interrupt\n");
25 return IRQ_HANDLED;
26 }
27 return IRQ_WAKE_THREAD;
28}
29
30static irqreturn_t isr_bh_routine(int irq, void *userdata)
31{
32 struct net_device *dev = userdata;
33 struct wilc_vif *vif = netdev_priv(userdata);
34 struct wilc *wilc = vif->wilc;
35
36 if (wilc->close) {
37 netdev_err(dev, "Can't handle BH interrupt\n");
38 return IRQ_HANDLED;
39 }
40
41 wilc_handle_isr(wilc);
42
43 return IRQ_HANDLED;
44}
45
46static int init_irq(struct net_device *dev)
47{
48 int ret = 0;
49 struct wilc_vif *vif = netdev_priv(dev);
50 struct wilc *wl = vif->wilc;
51
52 ret = gpiod_direction_input(wl->gpio_irq);
53 if (ret) {
54 netdev_err(dev, "could not obtain gpio for WILC_INTR\n");
55 return ret;
56 }
57
58 wl->dev_irq_num = gpiod_to_irq(wl->gpio_irq);
59
60 ret = request_threaded_irq(wl->dev_irq_num, isr_uh_routine,
61 isr_bh_routine,
62 IRQF_TRIGGER_LOW | IRQF_ONESHOT,
63 "WILC_IRQ", dev);
64 if (ret < 0)
65 netdev_err(dev, "Failed to request IRQ\n");
66 else
67 netdev_dbg(dev, "IRQ request succeeded IRQ-NUM= %d\n",
68 wl->dev_irq_num);
69
70 return ret;
71}
72
73static void deinit_irq(struct net_device *dev)
74{
75 struct wilc_vif *vif = netdev_priv(dev);
76 struct wilc *wilc = vif->wilc;
77
78
79 if (wilc->dev_irq_num)
80 free_irq(wilc->dev_irq_num, wilc);
81}
82
83void wilc_mac_indicate(struct wilc *wilc)
84{
85 s8 status;
86
87 wilc_wlan_cfg_get_val(wilc, WID_STATUS, &status, 1);
88 if (wilc->mac_status == WILC_MAC_STATUS_INIT) {
89 wilc->mac_status = status;
90 complete(&wilc->sync_event);
91 } else {
92 wilc->mac_status = status;
93 }
94}
95
96static struct net_device *get_if_handler(struct wilc *wilc, u8 *mac_header)
97{
98 u8 *bssid, *bssid1;
99 int i = 0;
100
101 bssid = mac_header + 10;
102 bssid1 = mac_header + 4;
103
104 for (i = 0; i < wilc->vif_num; i++) {
105 if (wilc->vif[i]->mode == WILC_STATION_MODE)
106 if (ether_addr_equal_unaligned(bssid,
107 wilc->vif[i]->bssid))
108 return wilc->vif[i]->ndev;
109 if (wilc->vif[i]->mode == WILC_AP_MODE)
110 if (ether_addr_equal_unaligned(bssid1,
111 wilc->vif[i]->bssid))
112 return wilc->vif[i]->ndev;
113 }
114
115 return NULL;
116}
117
118void wilc_wlan_set_bssid(struct net_device *wilc_netdev, u8 *bssid, u8 mode)
119{
120 struct wilc_vif *vif = netdev_priv(wilc_netdev);
121
122 if (bssid)
123 ether_addr_copy(vif->bssid, bssid);
124 else
125 eth_zero_addr(vif->bssid);
126
127 vif->mode = mode;
128}
129
130int wilc_wlan_get_num_conn_ifcs(struct wilc *wilc)
131{
132 u8 i = 0;
133 u8 ret_val = 0;
134
135 for (i = 0; i < wilc->vif_num; i++)
136 if (!is_zero_ether_addr(wilc->vif[i]->bssid))
137 ret_val++;
138
139 return ret_val;
140}
141
142static int wilc_txq_task(void *vp)
143{
144 int ret;
145 u32 txq_count;
146 struct net_device *dev = vp;
147 struct wilc_vif *vif = netdev_priv(dev);
148 struct wilc *wl = vif->wilc;
149
150 complete(&wl->txq_thread_started);
151 while (1) {
152 wait_for_completion(&wl->txq_event);
153
154 if (wl->close) {
155 complete(&wl->txq_thread_started);
156
157 while (!kthread_should_stop())
158 schedule();
159 break;
160 }
161 do {
162 ret = wilc_wlan_handle_txq(dev, &txq_count);
163 if (txq_count < FLOW_CONTROL_LOWER_THRESHOLD) {
164 if (wl->vif[0]->mac_opened &&
165 netif_queue_stopped(wl->vif[0]->ndev))
166 netif_wake_queue(wl->vif[0]->ndev);
167 if (wl->vif[1]->mac_opened &&
168 netif_queue_stopped(wl->vif[1]->ndev))
169 netif_wake_queue(wl->vif[1]->ndev);
170 }
171 } while (ret == -ENOBUFS && !wl->close);
172 }
173 return 0;
174}
175
176static int wilc_wlan_get_firmware(struct net_device *dev)
177{
178 struct wilc_vif *vif = netdev_priv(dev);
179 struct wilc *wilc = vif->wilc;
180 int chip_id, ret = 0;
181 const struct firmware *wilc_firmware;
182 char *firmware;
183
184 chip_id = wilc_get_chipid(wilc, false);
185
186 if (chip_id < 0x1003a0)
187 firmware = FIRMWARE_1002;
188 else
189 firmware = FIRMWARE_1003;
190
191 netdev_info(dev, "loading firmware %s\n", firmware);
192
193 if (request_firmware(&wilc_firmware, firmware, wilc->dev) != 0) {
194 netdev_err(dev, "%s - firmware not available\n", firmware);
195 ret = -1;
196 goto fail;
197 }
198 wilc->firmware = wilc_firmware;
199
200fail:
201
202 return ret;
203}
204
205static int wilc_start_firmware(struct net_device *dev)
206{
207 struct wilc_vif *vif = netdev_priv(dev);
208 struct wilc *wilc = vif->wilc;
209 int ret = 0;
210
211 ret = wilc_wlan_start(wilc);
212 if (ret < 0)
213 return ret;
214
215 if (!wait_for_completion_timeout(&wilc->sync_event,
216 msecs_to_jiffies(5000)))
217 return -ETIME;
218
219 return 0;
220}
221
222static int wilc1000_firmware_download(struct net_device *dev)
223{
224 struct wilc_vif *vif = netdev_priv(dev);
225 struct wilc *wilc = vif->wilc;
226 int ret = 0;
227
228 if (!wilc->firmware) {
229 netdev_err(dev, "Firmware buffer is NULL\n");
230 return -ENOBUFS;
231 }
232
233 ret = wilc_wlan_firmware_download(wilc, wilc->firmware->data,
234 wilc->firmware->size);
235 if (ret < 0)
236 return ret;
237
238 release_firmware(wilc->firmware);
239 wilc->firmware = NULL;
240
241 netdev_dbg(dev, "Download Succeeded\n");
242
243 return 0;
244}
245
246static int wilc_init_fw_config(struct net_device *dev, struct wilc_vif *vif)
247{
248 struct wilc_priv *priv;
249 struct host_if_drv *hif_drv;
250 u8 b;
251 u16 hw;
252 u32 w;
253
254 netdev_dbg(dev, "Start configuring Firmware\n");
255 priv = wiphy_priv(dev->ieee80211_ptr->wiphy);
256 hif_drv = (struct host_if_drv *)priv->hif_drv;
257 netdev_dbg(dev, "Host = %p\n", hif_drv);
258
259 w = vif->iftype;
260 cpu_to_le32s(&w);
261 if (!wilc_wlan_cfg_set(vif, 1, WID_SET_OPERATION_MODE, (u8 *)&w, 4,
262 0, 0))
263 goto fail;
264
265 b = WILC_FW_BSS_TYPE_INFRA;
266 if (!wilc_wlan_cfg_set(vif, 0, WID_BSS_TYPE, &b, 1, 0, 0))
267 goto fail;
268
269 b = WILC_FW_TX_RATE_AUTO;
270 if (!wilc_wlan_cfg_set(vif, 0, WID_CURRENT_TX_RATE, &b, 1, 0, 0))
271 goto fail;
272
273 b = WILC_FW_OPER_MODE_G_MIXED_11B_2;
274 if (!wilc_wlan_cfg_set(vif, 0, WID_11G_OPERATING_MODE, &b, 1, 0, 0))
275 goto fail;
276
277 b = WILC_FW_PREAMBLE_SHORT;
278 if (!wilc_wlan_cfg_set(vif, 0, WID_PREAMBLE, &b, 1, 0, 0))
279 goto fail;
280
281 b = WILC_FW_11N_PROT_AUTO;
282 if (!wilc_wlan_cfg_set(vif, 0, WID_11N_PROT_MECH, &b, 1, 0, 0))
283 goto fail;
284
285 b = WILC_FW_ACTIVE_SCAN;
286 if (!wilc_wlan_cfg_set(vif, 0, WID_SCAN_TYPE, &b, 1, 0, 0))
287 goto fail;
288
289 b = WILC_FW_SITE_SURVEY_OFF;
290 if (!wilc_wlan_cfg_set(vif, 0, WID_SITE_SURVEY, &b, 1, 0, 0))
291 goto fail;
292
293 hw = 0xffff;
294 cpu_to_le16s(&hw);
295 if (!wilc_wlan_cfg_set(vif, 0, WID_RTS_THRESHOLD, (u8 *)&hw, 2, 0, 0))
296 goto fail;
297
298 hw = 2346;
299 cpu_to_le16s(&hw);
300 if (!wilc_wlan_cfg_set(vif, 0, WID_FRAG_THRESHOLD, (u8 *)&hw, 2, 0, 0))
301 goto fail;
302
303 b = 0;
304 if (!wilc_wlan_cfg_set(vif, 0, WID_BCAST_SSID, &b, 1, 0, 0))
305 goto fail;
306
307 b = 1;
308 if (!wilc_wlan_cfg_set(vif, 0, WID_QOS_ENABLE, &b, 1, 0, 0))
309 goto fail;
310
311 b = WILC_FW_NO_POWERSAVE;
312 if (!wilc_wlan_cfg_set(vif, 0, WID_POWER_MANAGEMENT, &b, 1, 0, 0))
313 goto fail;
314
315 b = WILC_FW_SEC_NO;
316 if (!wilc_wlan_cfg_set(vif, 0, WID_11I_MODE, &b, 1, 0, 0))
317 goto fail;
318
319 b = WILC_FW_AUTH_OPEN_SYSTEM;
320 if (!wilc_wlan_cfg_set(vif, 0, WID_AUTH_TYPE, &b, 1, 0, 0))
321 goto fail;
322
323 b = 3;
324 if (!wilc_wlan_cfg_set(vif, 0, WID_LISTEN_INTERVAL, &b, 1, 0, 0))
325 goto fail;
326
327 b = 3;
328 if (!wilc_wlan_cfg_set(vif, 0, WID_DTIM_PERIOD, &b, 1, 0, 0))
329 goto fail;
330
331 b = WILC_FW_ACK_POLICY_NORMAL;
332 if (!wilc_wlan_cfg_set(vif, 0, WID_ACK_POLICY, &b, 1, 0, 0))
333 goto fail;
334
335 b = 0;
336 if (!wilc_wlan_cfg_set(vif, 0, WID_USER_CONTROL_ON_TX_POWER, &b, 1,
337 0, 0))
338 goto fail;
339
340 b = 48;
341 if (!wilc_wlan_cfg_set(vif, 0, WID_TX_POWER_LEVEL_11A, &b, 1, 0, 0))
342 goto fail;
343
344 b = 28;
345 if (!wilc_wlan_cfg_set(vif, 0, WID_TX_POWER_LEVEL_11B, &b, 1, 0, 0))
346 goto fail;
347
348 hw = 100;
349 cpu_to_le16s(&hw);
350 if (!wilc_wlan_cfg_set(vif, 0, WID_BEACON_INTERVAL, (u8 *)&hw, 2, 0, 0))
351 goto fail;
352
353 b = WILC_FW_REKEY_POLICY_DISABLE;
354 if (!wilc_wlan_cfg_set(vif, 0, WID_REKEY_POLICY, &b, 1, 0, 0))
355 goto fail;
356
357 w = 84600;
358 cpu_to_le32s(&w);
359 if (!wilc_wlan_cfg_set(vif, 0, WID_REKEY_PERIOD, (u8 *)&w, 4, 0, 0))
360 goto fail;
361
362 w = 500;
363 cpu_to_le32s(&w);
364 if (!wilc_wlan_cfg_set(vif, 0, WID_REKEY_PACKET_COUNT, (u8 *)&w, 4, 0,
365 0))
366 goto fail;
367
368 b = 1;
369 if (!wilc_wlan_cfg_set(vif, 0, WID_SHORT_SLOT_ALLOWED, &b, 1, 0,
370 0))
371 goto fail;
372
373 b = WILC_FW_ERP_PROT_SELF_CTS;
374 if (!wilc_wlan_cfg_set(vif, 0, WID_11N_ERP_PROT_TYPE, &b, 1, 0, 0))
375 goto fail;
376
377 b = 1;
378 if (!wilc_wlan_cfg_set(vif, 0, WID_11N_ENABLE, &b, 1, 0, 0))
379 goto fail;
380
381 b = WILC_FW_11N_OP_MODE_HT_MIXED;
382 if (!wilc_wlan_cfg_set(vif, 0, WID_11N_OPERATING_MODE, &b, 1, 0, 0))
383 goto fail;
384
385 b = 1;
386 if (!wilc_wlan_cfg_set(vif, 0, WID_11N_TXOP_PROT_DISABLE, &b, 1, 0, 0))
387 goto fail;
388
389 b = WILC_FW_OBBS_NONHT_DETECT_PROTECT_REPORT;
390 if (!wilc_wlan_cfg_set(vif, 0, WID_11N_OBSS_NONHT_DETECTION, &b, 1,
391 0, 0))
392 goto fail;
393
394 b = WILC_FW_HT_PROT_RTS_CTS_NONHT;
395 if (!wilc_wlan_cfg_set(vif, 0, WID_11N_HT_PROT_TYPE, &b, 1, 0, 0))
396 goto fail;
397
398 b = 0;
399 if (!wilc_wlan_cfg_set(vif, 0, WID_11N_RIFS_PROT_ENABLE, &b, 1, 0,
400 0))
401 goto fail;
402
403 b = 7;
404 if (!wilc_wlan_cfg_set(vif, 0, WID_11N_CURRENT_TX_MCS, &b, 1, 0, 0))
405 goto fail;
406
407 b = 1;
408 if (!wilc_wlan_cfg_set(vif, 0, WID_11N_IMMEDIATE_BA_ENABLED, &b, 1,
409 1, 1))
410 goto fail;
411
412 return 0;
413
414fail:
415 return -1;
416}
417
418static void wlan_deinit_locks(struct net_device *dev)
419{
420 struct wilc_vif *vif = netdev_priv(dev);
421 struct wilc *wilc = vif->wilc;
422
423 mutex_destroy(&wilc->hif_cs);
424 mutex_destroy(&wilc->rxq_cs);
425 mutex_destroy(&wilc->cfg_cmd_lock);
426 mutex_destroy(&wilc->txq_add_to_head_cs);
427}
428
429static void wlan_deinitialize_threads(struct net_device *dev)
430{
431 struct wilc_vif *vif = netdev_priv(dev);
432 struct wilc *wl = vif->wilc;
433
434 wl->close = 1;
435
436 complete(&wl->txq_event);
437
438 if (wl->txq_thread) {
439 kthread_stop(wl->txq_thread);
440 wl->txq_thread = NULL;
441 }
442}
443
444static void wilc_wlan_deinitialize(struct net_device *dev)
445{
446 struct wilc_vif *vif = netdev_priv(dev);
447 struct wilc *wl = vif->wilc;
448
449 if (!wl) {
450 netdev_err(dev, "wl is NULL\n");
451 return;
452 }
453
454 if (wl->initialized) {
455 netdev_info(dev, "Deinitializing wilc1000...\n");
456
457 if (!wl->dev_irq_num &&
458 wl->hif_func->disable_interrupt) {
459 mutex_lock(&wl->hif_cs);
460 wl->hif_func->disable_interrupt(wl);
461 mutex_unlock(&wl->hif_cs);
462 }
463 complete(&wl->txq_event);
464
465 wlan_deinitialize_threads(dev);
466 deinit_irq(dev);
467
468 wilc_wlan_stop(wl);
469 wilc_wlan_cleanup(dev);
470 wlan_deinit_locks(dev);
471
472 wl->initialized = false;
473
474 netdev_dbg(dev, "wilc1000 deinitialization Done\n");
475 } else {
476 netdev_dbg(dev, "wilc1000 is not initialized\n");
477 }
478}
479
480static void wlan_init_locks(struct net_device *dev)
481{
482 struct wilc_vif *vif = netdev_priv(dev);
483 struct wilc *wl = vif->wilc;
484
485 mutex_init(&wl->hif_cs);
486 mutex_init(&wl->rxq_cs);
487 mutex_init(&wl->cfg_cmd_lock);
488
489 spin_lock_init(&wl->txq_spinlock);
490 mutex_init(&wl->txq_add_to_head_cs);
491
492 init_completion(&wl->txq_event);
493
494 init_completion(&wl->cfg_event);
495 init_completion(&wl->sync_event);
496 init_completion(&wl->txq_thread_started);
497}
498
499static int wlan_initialize_threads(struct net_device *dev)
500{
501 struct wilc_vif *vif = netdev_priv(dev);
502 struct wilc *wilc = vif->wilc;
503
504 wilc->txq_thread = kthread_run(wilc_txq_task, (void *)dev,
505 "K_TXQ_TASK");
506 if (IS_ERR(wilc->txq_thread)) {
507 netdev_err(dev, "couldn't create TXQ thread\n");
508 wilc->close = 0;
509 return PTR_ERR(wilc->txq_thread);
510 }
511 wait_for_completion(&wilc->txq_thread_started);
512
513 return 0;
514}
515
516static int wilc_wlan_initialize(struct net_device *dev, struct wilc_vif *vif)
517{
518 int ret = 0;
519 struct wilc *wl = vif->wilc;
520
521 if (!wl->initialized) {
522 wl->mac_status = WILC_MAC_STATUS_INIT;
523 wl->close = 0;
524
525 wlan_init_locks(dev);
526
527 ret = wilc_wlan_init(dev);
528 if (ret < 0) {
529 ret = -EIO;
530 goto fail_locks;
531 }
532
533 if (wl->gpio_irq && init_irq(dev)) {
534 ret = -EIO;
535 goto fail_locks;
536 }
537
538 ret = wlan_initialize_threads(dev);
539 if (ret < 0) {
540 ret = -EIO;
541 goto fail_wilc_wlan;
542 }
543
544 if (!wl->dev_irq_num &&
545 wl->hif_func->enable_interrupt &&
546 wl->hif_func->enable_interrupt(wl)) {
547 ret = -EIO;
548 goto fail_irq_init;
549 }
550
551 if (wilc_wlan_get_firmware(dev)) {
552 ret = -EIO;
553 goto fail_irq_enable;
554 }
555
556 ret = wilc1000_firmware_download(dev);
557 if (ret < 0) {
558 ret = -EIO;
559 goto fail_irq_enable;
560 }
561
562 ret = wilc_start_firmware(dev);
563 if (ret < 0) {
564 ret = -EIO;
565 goto fail_irq_enable;
566 }
567
568 if (wilc_wlan_cfg_get(vif, 1, WID_FIRMWARE_VERSION, 1, 0)) {
569 int size;
570 char firmware_ver[20];
571
572 size = wilc_wlan_cfg_get_val(wl, WID_FIRMWARE_VERSION,
573 firmware_ver,
574 sizeof(firmware_ver));
575 firmware_ver[size] = '\0';
576 netdev_dbg(dev, "Firmware Ver = %s\n", firmware_ver);
577 }
578 ret = wilc_init_fw_config(dev, vif);
579
580 if (ret < 0) {
581 netdev_err(dev, "Failed to configure firmware\n");
582 ret = -EIO;
583 goto fail_fw_start;
584 }
585
586 wl->initialized = true;
587 return 0;
588
589fail_fw_start:
590 wilc_wlan_stop(wl);
591
592fail_irq_enable:
593 if (!wl->dev_irq_num &&
594 wl->hif_func->disable_interrupt)
595 wl->hif_func->disable_interrupt(wl);
596fail_irq_init:
597 if (wl->dev_irq_num)
598 deinit_irq(dev);
599
600 wlan_deinitialize_threads(dev);
601fail_wilc_wlan:
602 wilc_wlan_cleanup(dev);
603fail_locks:
604 wlan_deinit_locks(dev);
605 netdev_err(dev, "WLAN initialization FAILED\n");
606 } else {
607 netdev_dbg(dev, "wilc1000 already initialized\n");
608 }
609 return ret;
610}
611
612static int mac_init_fn(struct net_device *ndev)
613{
614 netif_start_queue(ndev);
615 netif_stop_queue(ndev);
616
617 return 0;
618}
619
620static int wilc_mac_open(struct net_device *ndev)
621{
622 struct wilc_vif *vif = netdev_priv(ndev);
623 struct wilc *wl = vif->wilc;
624 struct wilc_priv *priv = wdev_priv(vif->ndev->ieee80211_ptr);
625 unsigned char mac_add[ETH_ALEN] = {0};
626 int ret = 0;
627 int i = 0;
628
629 if (!wl || !wl->dev) {
630 netdev_err(ndev, "device not ready\n");
631 return -ENODEV;
632 }
633
634 netdev_dbg(ndev, "MAC OPEN[%p]\n", ndev);
635
636 ret = wilc_init_host_int(ndev);
637 if (ret < 0)
638 return ret;
639
640 ret = wilc_wlan_initialize(ndev, vif);
641 if (ret < 0) {
642 wilc_deinit_host_int(ndev);
643 return ret;
644 }
645
646 for (i = 0; i < wl->vif_num; i++) {
647 if (ndev == wl->vif[i]->ndev) {
648 wilc_set_wfi_drv_handler(vif, wilc_get_vif_idx(vif),
649 vif->iftype, vif->ifc_id);
650 wilc_set_operation_mode(vif, vif->iftype);
651 break;
652 }
653 }
654
655 wilc_get_mac_address(vif, mac_add);
656 netdev_dbg(ndev, "Mac address: %pM\n", mac_add);
657 memcpy(wl->vif[i]->src_addr, mac_add, ETH_ALEN);
658 memcpy(ndev->dev_addr, wl->vif[i]->src_addr, ETH_ALEN);
659
660 if (!is_valid_ether_addr(ndev->dev_addr)) {
661 netdev_err(ndev, "Wrong MAC address\n");
662 wilc_deinit_host_int(ndev);
663 wilc_wlan_deinitialize(ndev);
664 return -EINVAL;
665 }
666
667 wilc_mgmt_frame_register(vif->ndev->ieee80211_ptr->wiphy,
668 vif->ndev->ieee80211_ptr,
669 vif->frame_reg[0].type,
670 vif->frame_reg[0].reg);
671 wilc_mgmt_frame_register(vif->ndev->ieee80211_ptr->wiphy,
672 vif->ndev->ieee80211_ptr,
673 vif->frame_reg[1].type,
674 vif->frame_reg[1].reg);
675 netif_wake_queue(ndev);
676 wl->open_ifcs++;
677 priv->p2p.local_random = 0x01;
678 vif->mac_opened = 1;
679 return 0;
680}
681
682static struct net_device_stats *mac_stats(struct net_device *dev)
683{
684 struct wilc_vif *vif = netdev_priv(dev);
685
686 return &vif->netstats;
687}
688
689static void wilc_set_multicast_list(struct net_device *dev)
690{
691 struct netdev_hw_addr *ha;
692 struct wilc_vif *vif = netdev_priv(dev);
693 int i;
694 u8 *mc_list;
695 u8 *cur_mc;
696
697 if (dev->flags & IFF_PROMISC)
698 return;
699
700 if (dev->flags & IFF_ALLMULTI ||
701 dev->mc.count > WILC_MULTICAST_TABLE_SIZE) {
702 wilc_setup_multicast_filter(vif, 0, 0, NULL);
703 return;
704 }
705
706 if (dev->mc.count == 0) {
707 wilc_setup_multicast_filter(vif, 1, 0, NULL);
708 return;
709 }
710
711 mc_list = kmalloc_array(dev->mc.count, ETH_ALEN, GFP_ATOMIC);
712 if (!mc_list)
713 return;
714
715 cur_mc = mc_list;
716 i = 0;
717 netdev_for_each_mc_addr(ha, dev) {
718 memcpy(cur_mc, ha->addr, ETH_ALEN);
719 netdev_dbg(dev, "Entry[%d]: %pM\n", i, cur_mc);
720 i++;
721 cur_mc += ETH_ALEN;
722 }
723
724 if (wilc_setup_multicast_filter(vif, 1, dev->mc.count, mc_list))
725 kfree(mc_list);
726}
727
728static void wilc_tx_complete(void *priv, int status)
729{
730 struct tx_complete_data *pv_data = priv;
731
732 dev_kfree_skb(pv_data->skb);
733 kfree(pv_data);
734}
735
736netdev_tx_t wilc_mac_xmit(struct sk_buff *skb, struct net_device *ndev)
737{
738 struct wilc_vif *vif = netdev_priv(ndev);
739 struct wilc *wilc = vif->wilc;
740 struct tx_complete_data *tx_data = NULL;
741 int queue_count;
742
743 if (skb->dev != ndev) {
744 netdev_err(ndev, "Packet not destined to this device\n");
745 return 0;
746 }
747
748 tx_data = kmalloc(sizeof(*tx_data), GFP_ATOMIC);
749 if (!tx_data) {
750 dev_kfree_skb(skb);
751 netif_wake_queue(ndev);
752 return 0;
753 }
754
755 tx_data->buff = skb->data;
756 tx_data->size = skb->len;
757 tx_data->skb = skb;
758
759 vif->netstats.tx_packets++;
760 vif->netstats.tx_bytes += tx_data->size;
761 tx_data->bssid = wilc->vif[vif->idx]->bssid;
762 queue_count = wilc_wlan_txq_add_net_pkt(ndev, (void *)tx_data,
763 tx_data->buff, tx_data->size,
764 wilc_tx_complete);
765
766 if (queue_count > FLOW_CONTROL_UPPER_THRESHOLD) {
767 if (wilc->vif[0]->mac_opened)
768 netif_stop_queue(wilc->vif[0]->ndev);
769 if (wilc->vif[1]->mac_opened)
770 netif_stop_queue(wilc->vif[1]->ndev);
771 }
772
773 return 0;
774}
775
776static int wilc_mac_close(struct net_device *ndev)
777{
778 struct wilc_vif *vif = netdev_priv(ndev);
779 struct wilc *wl = vif->wilc;
780
781 netdev_dbg(ndev, "Mac close\n");
782
783 if (wl->open_ifcs > 0)
784 wl->open_ifcs--;
785 else
786 return 0;
787
788 if (vif->ndev) {
789 netif_stop_queue(vif->ndev);
790
791 wilc_deinit_host_int(vif->ndev);
792 }
793
794 if (wl->open_ifcs == 0) {
795 netdev_dbg(ndev, "Deinitializing wilc1000\n");
796 wl->close = 1;
797 wilc_wlan_deinitialize(ndev);
798 }
799
800 vif->mac_opened = 0;
801
802 return 0;
803}
804
805void wilc_frmw_to_host(struct wilc *wilc, u8 *buff, u32 size,
806 u32 pkt_offset)
807{
808 unsigned int frame_len = 0;
809 int stats;
810 unsigned char *buff_to_send = NULL;
811 struct sk_buff *skb;
812 struct net_device *wilc_netdev;
813 struct wilc_vif *vif;
814
815 if (!wilc)
816 return;
817
818 wilc_netdev = get_if_handler(wilc, buff);
819 if (!wilc_netdev)
820 return;
821
822 buff += pkt_offset;
823 vif = netdev_priv(wilc_netdev);
824
825 if (size > 0) {
826 frame_len = size;
827 buff_to_send = buff;
828
829 skb = dev_alloc_skb(frame_len);
830 if (!skb)
831 return;
832
833 skb->dev = wilc_netdev;
834
835 skb_put_data(skb, buff_to_send, frame_len);
836
837 skb->protocol = eth_type_trans(skb, wilc_netdev);
838 vif->netstats.rx_packets++;
839 vif->netstats.rx_bytes += frame_len;
840 skb->ip_summed = CHECKSUM_UNNECESSARY;
841 stats = netif_rx(skb);
842 netdev_dbg(wilc_netdev, "netif_rx ret value is: %d\n", stats);
843 }
844}
845
846void wilc_wfi_mgmt_rx(struct wilc *wilc, u8 *buff, u32 size)
847{
848 int i = 0;
849 struct wilc_vif *vif;
850
851 for (i = 0; i < wilc->vif_num; i++) {
852 vif = netdev_priv(wilc->vif[i]->ndev);
853 if (vif->monitor_flag) {
854 wilc_wfi_monitor_rx(wilc->monitor_dev, buff, size);
855 return;
856 }
857 }
858
859 vif = netdev_priv(wilc->vif[1]->ndev);
860 if ((buff[0] == vif->frame_reg[0].type && vif->frame_reg[0].reg) ||
861 (buff[0] == vif->frame_reg[1].type && vif->frame_reg[1].reg))
862 wilc_wfi_p2p_rx(wilc->vif[1]->ndev, buff, size);
863}
864
865static const struct net_device_ops wilc_netdev_ops = {
866 .ndo_init = mac_init_fn,
867 .ndo_open = wilc_mac_open,
868 .ndo_stop = wilc_mac_close,
869 .ndo_start_xmit = wilc_mac_xmit,
870 .ndo_get_stats = mac_stats,
871 .ndo_set_rx_mode = wilc_set_multicast_list,
872};
873
874static int dev_state_ev_handler(struct notifier_block *this,
875 unsigned long event, void *ptr)
876{
877 struct in_ifaddr *dev_iface = ptr;
878 struct wilc_priv *priv;
879 struct host_if_drv *hif_drv;
880 struct net_device *dev;
881 struct wilc_vif *vif;
882
883 if (!dev_iface || !dev_iface->ifa_dev || !dev_iface->ifa_dev->dev)
884 return NOTIFY_DONE;
885
886 dev = (struct net_device *)dev_iface->ifa_dev->dev;
887 if (dev->netdev_ops != &wilc_netdev_ops)
888 return NOTIFY_DONE;
889
890 if (!dev->ieee80211_ptr || !dev->ieee80211_ptr->wiphy)
891 return NOTIFY_DONE;
892
893 priv = wiphy_priv(dev->ieee80211_ptr->wiphy);
894 if (!priv)
895 return NOTIFY_DONE;
896
897 hif_drv = (struct host_if_drv *)priv->hif_drv;
898 vif = netdev_priv(dev);
899 if (!vif || !hif_drv)
900 return NOTIFY_DONE;
901
902 switch (event) {
903 case NETDEV_UP:
904 if (vif->iftype == WILC_STATION_MODE ||
905 vif->iftype == WILC_CLIENT_MODE) {
906 hif_drv->ifc_up = 1;
907 vif->obtaining_ip = false;
908 del_timer(&vif->during_ip_timer);
909 }
910
911 if (vif->wilc->enable_ps)
912 wilc_set_power_mgmt(vif, 1, 0);
913
914 break;
915
916 case NETDEV_DOWN:
917 if (vif->iftype == WILC_STATION_MODE ||
918 vif->iftype == WILC_CLIENT_MODE) {
919 hif_drv->ifc_up = 0;
920 vif->obtaining_ip = false;
921 wilc_set_power_mgmt(vif, 0, 0);
922 }
923
924 wilc_resolve_disconnect_aberration(vif);
925
926 break;
927
928 default:
929 break;
930 }
931
932 return NOTIFY_DONE;
933}
934
935static struct notifier_block g_dev_notifier = {
936 .notifier_call = dev_state_ev_handler
937};
938
939void wilc_netdev_cleanup(struct wilc *wilc)
940{
941 int i;
942
943 if (!wilc)
944 return;
945
946 if (wilc->vif[0]->ndev || wilc->vif[1]->ndev)
947 unregister_inetaddr_notifier(&g_dev_notifier);
948
949 if (wilc->firmware) {
950 release_firmware(wilc->firmware);
951 wilc->firmware = NULL;
952 }
953
954 for (i = 0; i < WILC_NUM_CONCURRENT_IFC; i++) {
955 if (wilc->vif[i] && wilc->vif[i]->ndev) {
956 unregister_netdev(wilc->vif[i]->ndev);
957 wilc_free_wiphy(wilc->vif[i]->ndev);
958 free_netdev(wilc->vif[i]->ndev);
959 }
960 }
961
962 wilc_wfi_deinit_mon_interface(wilc);
963 flush_workqueue(wilc->hif_workqueue);
964 destroy_workqueue(wilc->hif_workqueue);
965 wilc_wlan_cfg_deinit(wilc);
966 kfree(wilc->bus_data);
967 kfree(wilc);
968}
969EXPORT_SYMBOL_GPL(wilc_netdev_cleanup);
970
971int wilc_netdev_init(struct wilc **wilc, struct device *dev, int io_type,
972 const struct wilc_hif_func *ops)
973{
974 int i, ret;
975 struct wilc_vif *vif;
976 struct net_device *ndev;
977 struct wilc *wl;
978
979 wl = kzalloc(sizeof(*wl), GFP_KERNEL);
980 if (!wl)
981 return -ENOMEM;
982
983 ret = wilc_wlan_cfg_init(wl);
984 if (ret)
985 goto free_wl;
986
987 *wilc = wl;
988 wl->io_type = io_type;
989 wl->hif_func = ops;
990 wl->enable_ps = true;
991 wl->chip_ps_state = WILC_CHIP_WAKEDUP;
992 INIT_LIST_HEAD(&wl->txq_head.list);
993 INIT_LIST_HEAD(&wl->rxq_head.list);
994
995 wl->hif_workqueue = create_singlethread_workqueue("WILC_wq");
996 if (!wl->hif_workqueue) {
997 ret = -ENOMEM;
998 goto free_cfg;
999 }
1000
1001 register_inetaddr_notifier(&g_dev_notifier);
1002
1003 for (i = 0; i < WILC_NUM_CONCURRENT_IFC; i++) {
1004 struct wireless_dev *wdev;
1005
1006 ndev = alloc_etherdev(sizeof(struct wilc_vif));
1007 if (!ndev) {
1008 ret = -ENOMEM;
1009 goto free_ndev;
1010 }
1011
1012 vif = netdev_priv(ndev);
1013 memset(vif, 0, sizeof(struct wilc_vif));
1014
1015 if (i == 0) {
1016 strcpy(ndev->name, "wlan%d");
1017 vif->ifc_id = 1;
1018 } else {
1019 strcpy(ndev->name, "p2p%d");
1020 vif->ifc_id = 0;
1021 }
1022 vif->wilc = *wilc;
1023 vif->ndev = ndev;
1024 wl->vif[i] = vif;
1025 wl->vif_num = i + 1;
1026 vif->idx = i;
1027
1028 ndev->netdev_ops = &wilc_netdev_ops;
1029
1030 wdev = wilc_create_wiphy(ndev, dev);
1031 if (!wdev) {
1032 netdev_err(ndev, "Can't register WILC Wiphy\n");
1033 ret = -ENOMEM;
1034 goto free_ndev;
1035 }
1036
1037 SET_NETDEV_DEV(ndev, dev);
1038
1039 vif->ndev->ieee80211_ptr = wdev;
1040 vif->ndev->ml_priv = vif;
1041 wdev->netdev = vif->ndev;
1042 vif->netstats.rx_packets = 0;
1043 vif->netstats.tx_packets = 0;
1044 vif->netstats.rx_bytes = 0;
1045 vif->netstats.tx_bytes = 0;
1046
1047 ret = register_netdev(ndev);
1048 if (ret)
1049 goto free_ndev;
1050
1051 vif->iftype = WILC_STATION_MODE;
1052 vif->mac_opened = 0;
1053 }
1054
1055 return 0;
1056
1057free_ndev:
1058 for (; i >= 0; i--) {
1059 if (wl->vif[i]) {
1060 if (wl->vif[i]->iftype == WILC_STATION_MODE)
1061 unregister_netdev(wl->vif[i]->ndev);
1062
1063 if (wl->vif[i]->ndev) {
1064 wilc_free_wiphy(wl->vif[i]->ndev);
1065 free_netdev(wl->vif[i]->ndev);
1066 }
1067 }
1068 }
1069 unregister_inetaddr_notifier(&g_dev_notifier);
1070 destroy_workqueue(wl->hif_workqueue);
1071free_cfg:
1072 wilc_wlan_cfg_deinit(wl);
1073free_wl:
1074 kfree(wl);
1075 return ret;
1076}
1077EXPORT_SYMBOL_GPL(wilc_netdev_init);
1078
1079MODULE_LICENSE("GPL");
1080
