1#include "wilc_wfi_cfgoperations.h"
2#include "wilc_wlan_if.h"
3#include "wilc_wlan.h"
4
5#include <linux/slab.h>
6#include <linux/sched.h>
7#include <linux/delay.h>
8#include <linux/workqueue.h>
9#include <linux/interrupt.h>
10#include <linux/irq.h>
11#include <linux/gpio.h>
12
13#include <linux/kthread.h>
14#include <linux/firmware.h>
15
16#include <linux/init.h>
17#include <linux/netdevice.h>
18#include <linux/inetdevice.h>
19#include <linux/etherdevice.h>
20#include <linux/module.h>
21#include <linux/kernel.h>
22#include <linux/skbuff.h>
23#include <linux/mutex.h>
24#include <linux/completion.h>
25
26static int dev_state_ev_handler(struct notifier_block *this,
27 unsigned long event, void *ptr);
28
29static struct notifier_block g_dev_notifier = {
30 .notifier_call = dev_state_ev_handler
31};
32
33static int wlan_deinit_locks(struct net_device *dev);
34static void wlan_deinitialize_threads(struct net_device *dev);
35
36static void linux_wlan_tx_complete(void *priv, int status);
37static int mac_init_fn(struct net_device *ndev);
38static struct net_device_stats *mac_stats(struct net_device *dev);
39static int mac_ioctl(struct net_device *ndev, struct ifreq *req, int cmd);
40static int wilc_mac_open(struct net_device *ndev);
41static int wilc_mac_close(struct net_device *ndev);
42static void wilc_set_multicast_list(struct net_device *dev);
43
44bool wilc_enable_ps = true;
45
46static const struct net_device_ops wilc_netdev_ops = {
47 .ndo_init = mac_init_fn,
48 .ndo_open = wilc_mac_open,
49 .ndo_stop = wilc_mac_close,
50 .ndo_start_xmit = wilc_mac_xmit,
51 .ndo_do_ioctl = mac_ioctl,
52 .ndo_get_stats = mac_stats,
53 .ndo_set_rx_mode = wilc_set_multicast_list,
54
55};
56
57static int dev_state_ev_handler(struct notifier_block *this,
58 unsigned long event, void *ptr)
59{
60 struct in_ifaddr *dev_iface = ptr;
61 struct wilc_priv *priv;
62 struct host_if_drv *hif_drv;
63 struct net_device *dev;
64 u8 *ip_addr_buf;
65 struct wilc_vif *vif;
66 u8 null_ip[4] = {0};
67 char wlan_dev_name[5] = "wlan0";
68
69 if (!dev_iface || !dev_iface->ifa_dev || !dev_iface->ifa_dev->dev)
70 return NOTIFY_DONE;
71
72 if (memcmp(dev_iface->ifa_label, "wlan0", 5) &&
73 memcmp(dev_iface->ifa_label, "p2p0", 4))
74 return NOTIFY_DONE;
75
76 dev = (struct net_device *)dev_iface->ifa_dev->dev;
77 if (!dev->ieee80211_ptr || !dev->ieee80211_ptr->wiphy)
78 return NOTIFY_DONE;
79
80 priv = wiphy_priv(dev->ieee80211_ptr->wiphy);
81 if (!priv)
82 return NOTIFY_DONE;
83
84 hif_drv = (struct host_if_drv *)priv->hif_drv;
85 vif = netdev_priv(dev);
86 if (!vif || !hif_drv)
87 return NOTIFY_DONE;
88
89 switch (event) {
90 case NETDEV_UP:
91 if (vif->iftype == STATION_MODE || vif->iftype == CLIENT_MODE) {
92 hif_drv->IFC_UP = 1;
93 wilc_optaining_ip = false;
94 del_timer(&wilc_during_ip_timer);
95 }
96
97 if (wilc_enable_ps)
98 wilc_set_power_mgmt(vif, 1, 0);
99
100 netdev_dbg(dev, "[%s] Up IP\n", dev_iface->ifa_label);
101
102 ip_addr_buf = (char *)&dev_iface->ifa_address;
103 netdev_dbg(dev, "IP add=%d:%d:%d:%d\n",
104 ip_addr_buf[0], ip_addr_buf[1],
105 ip_addr_buf[2], ip_addr_buf[3]);
106 wilc_setup_ipaddress(vif, ip_addr_buf, vif->idx);
107
108 break;
109
110 case NETDEV_DOWN:
111 if (vif->iftype == STATION_MODE || vif->iftype == CLIENT_MODE) {
112 hif_drv->IFC_UP = 0;
113 wilc_optaining_ip = false;
114 }
115
116 if (memcmp(dev_iface->ifa_label, wlan_dev_name, 5) == 0)
117 wilc_set_power_mgmt(vif, 0, 0);
118
119 wilc_resolve_disconnect_aberration(vif);
120
121 netdev_dbg(dev, "[%s] Down IP\n", dev_iface->ifa_label);
122
123 ip_addr_buf = null_ip;
124 netdev_dbg(dev, "IP add=%d:%d:%d:%d\n",
125 ip_addr_buf[0], ip_addr_buf[1],
126 ip_addr_buf[2], ip_addr_buf[3]);
127
128 wilc_setup_ipaddress(vif, ip_addr_buf, vif->idx);
129
130 break;
131
132 default:
133 break;
134 }
135
136 return NOTIFY_DONE;
137}
138
139static irqreturn_t isr_uh_routine(int irq, void *user_data)
140{
141 struct wilc_vif *vif;
142 struct wilc *wilc;
143 struct net_device *dev = user_data;
144
145 vif = netdev_priv(dev);
146 wilc = vif->wilc;
147
148 if (wilc->close) {
149 netdev_err(dev, "Can't handle UH interrupt\n");
150 return IRQ_HANDLED;
151 }
152 return IRQ_WAKE_THREAD;
153}
154
155static irqreturn_t isr_bh_routine(int irq, void *userdata)
156{
157 struct wilc_vif *vif;
158 struct wilc *wilc;
159 struct net_device *dev = userdata;
160
161 vif = netdev_priv(userdata);
162 wilc = vif->wilc;
163
164 if (wilc->close) {
165 netdev_err(dev, "Can't handle BH interrupt\n");
166 return IRQ_HANDLED;
167 }
168
169 wilc_handle_isr(wilc);
170
171 return IRQ_HANDLED;
172}
173
174static int init_irq(struct net_device *dev)
175{
176 int ret = 0;
177 struct wilc_vif *vif;
178 struct wilc *wl;
179
180 vif = netdev_priv(dev);
181 wl = vif->wilc;
182
183 if ((gpio_request(wl->gpio, "WILC_INTR") == 0) &&
184 (gpio_direction_input(wl->gpio) == 0)) {
185 wl->dev_irq_num = gpio_to_irq(wl->gpio);
186 } else {
187 ret = -1;
188 netdev_err(dev, "could not obtain gpio for WILC_INTR\n");
189 }
190
191 if (ret != -1 && request_threaded_irq(wl->dev_irq_num,
192 isr_uh_routine,
193 isr_bh_routine,
194 IRQF_TRIGGER_LOW | IRQF_ONESHOT,
195 "WILC_IRQ", dev) < 0) {
196 netdev_err(dev, "Failed to request IRQ GPIO: %d\n", wl->gpio);
197 gpio_free(wl->gpio);
198 ret = -1;
199 } else {
200 netdev_dbg(dev,
201 "IRQ request succeeded IRQ-NUM= %d on GPIO: %d\n",
202 wl->dev_irq_num, wl->gpio);
203 }
204
205 return ret;
206}
207
208static void deinit_irq(struct net_device *dev)
209{
210 struct wilc_vif *vif;
211 struct wilc *wilc;
212
213 vif = netdev_priv(dev);
214 wilc = vif->wilc;
215
216
217 if (wilc->dev_irq_num) {
218 free_irq(wilc->dev_irq_num, wilc);
219 gpio_free(wilc->gpio);
220 }
221}
222
223void wilc_mac_indicate(struct wilc *wilc, int flag)
224{
225 int status;
226
227 if (flag == WILC_MAC_INDICATE_STATUS) {
228 wilc_wlan_cfg_get_val(WID_STATUS,
229 (unsigned char *)&status, 4);
230 if (wilc->mac_status == WILC_MAC_STATUS_INIT) {
231 wilc->mac_status = status;
232 complete(&wilc->sync_event);
233 } else {
234 wilc->mac_status = status;
235 }
236 }
237}
238
239static struct net_device *get_if_handler(struct wilc *wilc, u8 *mac_header)
240{
241 u8 *bssid, *bssid1;
242 int i = 0;
243
244 bssid = mac_header + 10;
245 bssid1 = mac_header + 4;
246
247 for (i = 0; i < wilc->vif_num; i++) {
248 if (wilc->vif[i]->mode == STATION_MODE)
249 if (ether_addr_equal_unaligned(bssid,
250 wilc->vif[i]->bssid))
251 return wilc->vif[i]->ndev;
252 if (wilc->vif[i]->mode == AP_MODE)
253 if (ether_addr_equal_unaligned(bssid1,
254 wilc->vif[i]->bssid))
255 return wilc->vif[i]->ndev;
256 }
257
258 return NULL;
259}
260
261int wilc_wlan_set_bssid(struct net_device *wilc_netdev, u8 *bssid, u8 mode)
262{
263 struct wilc_vif *vif = netdev_priv(wilc_netdev);
264
265 memcpy(vif->bssid, bssid, 6);
266 vif->mode = mode;
267
268 return 0;
269}
270
271int wilc_wlan_get_num_conn_ifcs(struct wilc *wilc)
272{
273 u8 i = 0;
274 u8 null_bssid[6] = {0};
275 u8 ret_val = 0;
276
277 for (i = 0; i < wilc->vif_num; i++)
278 if (memcmp(wilc->vif[i]->bssid, null_bssid, 6))
279 ret_val++;
280
281 return ret_val;
282}
283
284static int linux_wlan_txq_task(void *vp)
285{
286 int ret, txq_count;
287 struct wilc_vif *vif;
288 struct wilc *wl;
289 struct net_device *dev = vp;
290
291 vif = netdev_priv(dev);
292 wl = vif->wilc;
293
294 complete(&wl->txq_thread_started);
295 while (1) {
296 wait_for_completion(&wl->txq_event);
297
298 if (wl->close) {
299 complete(&wl->txq_thread_started);
300
301 while (!kthread_should_stop())
302 schedule();
303 break;
304 }
305 do {
306 ret = wilc_wlan_handle_txq(dev, &txq_count);
307 if (txq_count < FLOW_CONTROL_LOWER_THRESHOLD) {
308 if (netif_queue_stopped(wl->vif[0]->ndev))
309 netif_wake_queue(wl->vif[0]->ndev);
310 if (netif_queue_stopped(wl->vif[1]->ndev))
311 netif_wake_queue(wl->vif[1]->ndev);
312 }
313 } while (ret == WILC_TX_ERR_NO_BUF && !wl->close);
314 }
315 return 0;
316}
317
318int wilc_wlan_get_firmware(struct net_device *dev)
319{
320 struct wilc_vif *vif;
321 struct wilc *wilc;
322 int chip_id, ret = 0;
323 const struct firmware *wilc_firmware;
324 char *firmware;
325
326 vif = netdev_priv(dev);
327 wilc = vif->wilc;
328
329 chip_id = wilc_get_chipid(wilc, false);
330
331 if (chip_id < 0x1003a0)
332 firmware = FIRMWARE_1002;
333 else
334 firmware = FIRMWARE_1003;
335
336 netdev_info(dev, "loading firmware %s\n", firmware);
337
338 if (!(&vif->ndev->dev))
339 goto _fail_;
340
341 if (request_firmware(&wilc_firmware, firmware, wilc->dev) != 0) {
342 netdev_err(dev, "%s - firmware not available\n", firmware);
343 ret = -1;
344 goto _fail_;
345 }
346 wilc->firmware = wilc_firmware;
347
348_fail_:
349
350 return ret;
351}
352
353static int linux_wlan_start_firmware(struct net_device *dev)
354{
355 struct wilc_vif *vif;
356 struct wilc *wilc;
357 int ret = 0;
358
359 vif = netdev_priv(dev);
360 wilc = vif->wilc;
361
362 ret = wilc_wlan_start(wilc);
363 if (ret < 0)
364 return ret;
365
366 if (!wait_for_completion_timeout(&wilc->sync_event,
367 msecs_to_jiffies(5000)))
368 return -ETIME;
369
370 return 0;
371}
372
373static int wilc1000_firmware_download(struct net_device *dev)
374{
375 struct wilc_vif *vif;
376 struct wilc *wilc;
377 int ret = 0;
378
379 vif = netdev_priv(dev);
380 wilc = vif->wilc;
381
382 if (!wilc->firmware) {
383 netdev_err(dev, "Firmware buffer is NULL\n");
384 return -ENOBUFS;
385 }
386
387 ret = wilc_wlan_firmware_download(wilc, wilc->firmware->data,
388 wilc->firmware->size);
389 if (ret < 0)
390 return ret;
391
392 release_firmware(wilc->firmware);
393 wilc->firmware = NULL;
394
395 netdev_dbg(dev, "Download Succeeded\n");
396
397 return 0;
398}
399
400static int linux_wlan_init_test_config(struct net_device *dev,
401 struct wilc_vif *vif)
402{
403 unsigned char c_val[64];
404 struct wilc *wilc = vif->wilc;
405 struct wilc_priv *priv;
406 struct host_if_drv *hif_drv;
407
408 netdev_dbg(dev, "Start configuring Firmware\n");
409 priv = wiphy_priv(dev->ieee80211_ptr->wiphy);
410 hif_drv = (struct host_if_drv *)priv->hif_drv;
411 netdev_dbg(dev, "Host = %p\n", hif_drv);
412 wilc_get_chipid(wilc, false);
413
414 *(int *)c_val = 1;
415
416 if (!wilc_wlan_cfg_set(vif, 1, WID_SET_DRV_HANDLER, c_val, 4, 0, 0))
417 goto _fail_;
418
419 c_val[0] = 0;
420 if (!wilc_wlan_cfg_set(vif, 0, WID_PC_TEST_MODE, c_val, 1, 0, 0))
421 goto _fail_;
422
423 c_val[0] = INFRASTRUCTURE;
424 if (!wilc_wlan_cfg_set(vif, 0, WID_BSS_TYPE, c_val, 1, 0, 0))
425 goto _fail_;
426
427 c_val[0] = RATE_AUTO;
428 if (!wilc_wlan_cfg_set(vif, 0, WID_CURRENT_TX_RATE, c_val, 1, 0, 0))
429 goto _fail_;
430
431 c_val[0] = G_MIXED_11B_2_MODE;
432 if (!wilc_wlan_cfg_set(vif, 0, WID_11G_OPERATING_MODE, c_val, 1, 0,
433 0))
434 goto _fail_;
435
436 c_val[0] = 1;
437 if (!wilc_wlan_cfg_set(vif, 0, WID_CURRENT_CHANNEL, c_val, 1, 0, 0))
438 goto _fail_;
439
440 c_val[0] = G_SHORT_PREAMBLE;
441 if (!wilc_wlan_cfg_set(vif, 0, WID_PREAMBLE, c_val, 1, 0, 0))
442 goto _fail_;
443
444 c_val[0] = AUTO_PROT;
445 if (!wilc_wlan_cfg_set(vif, 0, WID_11N_PROT_MECH, c_val, 1, 0, 0))
446 goto _fail_;
447
448 c_val[0] = ACTIVE_SCAN;
449 if (!wilc_wlan_cfg_set(vif, 0, WID_SCAN_TYPE, c_val, 1, 0, 0))
450 goto _fail_;
451
452 c_val[0] = SITE_SURVEY_OFF;
453 if (!wilc_wlan_cfg_set(vif, 0, WID_SITE_SURVEY, c_val, 1, 0, 0))
454 goto _fail_;
455
456 *((int *)c_val) = 0xffff;
457 if (!wilc_wlan_cfg_set(vif, 0, WID_RTS_THRESHOLD, c_val, 2, 0, 0))
458 goto _fail_;
459
460 *((int *)c_val) = 2346;
461 if (!wilc_wlan_cfg_set(vif, 0, WID_FRAG_THRESHOLD, c_val, 2, 0, 0))
462 goto _fail_;
463
464 c_val[0] = 0;
465 if (!wilc_wlan_cfg_set(vif, 0, WID_BCAST_SSID, c_val, 1, 0, 0))
466 goto _fail_;
467
468 c_val[0] = 1;
469 if (!wilc_wlan_cfg_set(vif, 0, WID_QOS_ENABLE, c_val, 1, 0, 0))
470 goto _fail_;
471
472 c_val[0] = NO_POWERSAVE;
473 if (!wilc_wlan_cfg_set(vif, 0, WID_POWER_MANAGEMENT, c_val, 1, 0, 0))
474 goto _fail_;
475
476 c_val[0] = NO_SECURITY;
477 if (!wilc_wlan_cfg_set(vif, 0, WID_11I_MODE, c_val, 1, 0, 0))
478 goto _fail_;
479
480 c_val[0] = OPEN_SYSTEM;
481 if (!wilc_wlan_cfg_set(vif, 0, WID_AUTH_TYPE, c_val, 1, 0, 0))
482 goto _fail_;
483
484 strcpy(c_val, "123456790abcdef1234567890");
485 if (!wilc_wlan_cfg_set(vif, 0, WID_WEP_KEY_VALUE, c_val,
486 (strlen(c_val) + 1), 0, 0))
487 goto _fail_;
488
489 strcpy(c_val, "12345678");
490 if (!wilc_wlan_cfg_set(vif, 0, WID_11I_PSK, c_val, (strlen(c_val)), 0,
491 0))
492 goto _fail_;
493
494 strcpy(c_val, "password");
495 if (!wilc_wlan_cfg_set(vif, 0, WID_1X_KEY, c_val, (strlen(c_val) + 1),
496 0, 0))
497 goto _fail_;
498
499 c_val[0] = 192;
500 c_val[1] = 168;
501 c_val[2] = 1;
502 c_val[3] = 112;
503 if (!wilc_wlan_cfg_set(vif, 0, WID_1X_SERV_ADDR, c_val, 4, 0, 0))
504 goto _fail_;
505
506 c_val[0] = 3;
507 if (!wilc_wlan_cfg_set(vif, 0, WID_LISTEN_INTERVAL, c_val, 1, 0, 0))
508 goto _fail_;
509
510 c_val[0] = 3;
511 if (!wilc_wlan_cfg_set(vif, 0, WID_DTIM_PERIOD, c_val, 1, 0, 0))
512 goto _fail_;
513
514 c_val[0] = NORMAL_ACK;
515 if (!wilc_wlan_cfg_set(vif, 0, WID_ACK_POLICY, c_val, 1, 0, 0))
516 goto _fail_;
517
518 c_val[0] = 0;
519 if (!wilc_wlan_cfg_set(vif, 0, WID_USER_CONTROL_ON_TX_POWER, c_val, 1,
520 0, 0))
521 goto _fail_;
522
523 c_val[0] = 48;
524 if (!wilc_wlan_cfg_set(vif, 0, WID_TX_POWER_LEVEL_11A, c_val, 1, 0,
525 0))
526 goto _fail_;
527
528 c_val[0] = 28;
529 if (!wilc_wlan_cfg_set(vif, 0, WID_TX_POWER_LEVEL_11B, c_val, 1, 0,
530 0))
531 goto _fail_;
532
533 *((int *)c_val) = 100;
534 if (!wilc_wlan_cfg_set(vif, 0, WID_BEACON_INTERVAL, c_val, 2, 0, 0))
535 goto _fail_;
536
537 c_val[0] = REKEY_DISABLE;
538 if (!wilc_wlan_cfg_set(vif, 0, WID_REKEY_POLICY, c_val, 1, 0, 0))
539 goto _fail_;
540
541 *((int *)c_val) = 84600;
542 if (!wilc_wlan_cfg_set(vif, 0, WID_REKEY_PERIOD, c_val, 4, 0, 0))
543 goto _fail_;
544
545 *((int *)c_val) = 500;
546 if (!wilc_wlan_cfg_set(vif, 0, WID_REKEY_PACKET_COUNT, c_val, 4, 0,
547 0))
548 goto _fail_;
549
550 c_val[0] = 1;
551 if (!wilc_wlan_cfg_set(vif, 0, WID_SHORT_SLOT_ALLOWED, c_val, 1, 0,
552 0))
553 goto _fail_;
554
555 c_val[0] = G_SELF_CTS_PROT;
556 if (!wilc_wlan_cfg_set(vif, 0, WID_11N_ERP_PROT_TYPE, c_val, 1, 0, 0))
557 goto _fail_;
558
559 c_val[0] = 1;
560 if (!wilc_wlan_cfg_set(vif, 0, WID_11N_ENABLE, c_val, 1, 0, 0))
561 goto _fail_;
562
563 c_val[0] = HT_MIXED_MODE;
564 if (!wilc_wlan_cfg_set(vif, 0, WID_11N_OPERATING_MODE, c_val, 1, 0,
565 0))
566 goto _fail_;
567
568 c_val[0] = 1;
569 if (!wilc_wlan_cfg_set(vif, 0, WID_11N_TXOP_PROT_DISABLE, c_val, 1, 0,
570 0))
571 goto _fail_;
572
573 c_val[0] = DETECT_PROTECT_REPORT;
574 if (!wilc_wlan_cfg_set(vif, 0, WID_11N_OBSS_NONHT_DETECTION, c_val, 1,
575 0, 0))
576 goto _fail_;
577
578 c_val[0] = RTS_CTS_NONHT_PROT;
579 if (!wilc_wlan_cfg_set(vif, 0, WID_11N_HT_PROT_TYPE, c_val, 1, 0, 0))
580 goto _fail_;
581
582 c_val[0] = 0;
583 if (!wilc_wlan_cfg_set(vif, 0, WID_11N_RIFS_PROT_ENABLE, c_val, 1, 0,
584 0))
585 goto _fail_;
586
587 c_val[0] = MIMO_MODE;
588 if (!wilc_wlan_cfg_set(vif, 0, WID_11N_SMPS_MODE, c_val, 1, 0, 0))
589 goto _fail_;
590
591 c_val[0] = 7;
592 if (!wilc_wlan_cfg_set(vif, 0, WID_11N_CURRENT_TX_MCS, c_val, 1, 0,
593 0))
594 goto _fail_;
595
596 c_val[0] = 1;
597 if (!wilc_wlan_cfg_set(vif, 0, WID_11N_IMMEDIATE_BA_ENABLED, c_val, 1,
598 1, 1))
599 goto _fail_;
600
601 return 0;
602
603_fail_:
604 return -1;
605}
606
607void wilc1000_wlan_deinit(struct net_device *dev)
608{
609 struct wilc_vif *vif;
610 struct wilc *wl;
611
612 vif = netdev_priv(dev);
613 wl = vif->wilc;
614
615 if (!wl) {
616 netdev_err(dev, "wl is NULL\n");
617 return;
618 }
619
620 if (wl->initialized) {
621 netdev_info(dev, "Deinitializing wilc1000...\n");
622
623 if (!wl->dev_irq_num &&
624 wl->hif_func->disable_interrupt) {
625 mutex_lock(&wl->hif_cs);
626 wl->hif_func->disable_interrupt(wl);
627 mutex_unlock(&wl->hif_cs);
628 }
629 if (&wl->txq_event)
630 complete(&wl->txq_event);
631
632 wlan_deinitialize_threads(dev);
633 deinit_irq(dev);
634
635 wilc_wlan_stop(wl);
636 wilc_wlan_cleanup(dev);
637 wlan_deinit_locks(dev);
638
639 wl->initialized = false;
640
641 netdev_dbg(dev, "wilc1000 deinitialization Done\n");
642 } else {
643 netdev_dbg(dev, "wilc1000 is not initialized\n");
644 }
645}
646
647static int wlan_init_locks(struct net_device *dev)
648{
649 struct wilc_vif *vif;
650 struct wilc *wl;
651
652 vif = netdev_priv(dev);
653 wl = vif->wilc;
654
655 mutex_init(&wl->hif_cs);
656 mutex_init(&wl->rxq_cs);
657
658 spin_lock_init(&wl->txq_spinlock);
659 mutex_init(&wl->txq_add_to_head_cs);
660
661 init_completion(&wl->txq_event);
662
663 init_completion(&wl->cfg_event);
664 init_completion(&wl->sync_event);
665 init_completion(&wl->txq_thread_started);
666
667 return 0;
668}
669
670static int wlan_deinit_locks(struct net_device *dev)
671{
672 struct wilc_vif *vif;
673 struct wilc *wilc;
674
675 vif = netdev_priv(dev);
676 wilc = vif->wilc;
677
678 if (&wilc->hif_cs)
679 mutex_destroy(&wilc->hif_cs);
680
681 if (&wilc->rxq_cs)
682 mutex_destroy(&wilc->rxq_cs);
683
684 return 0;
685}
686
687static int wlan_initialize_threads(struct net_device *dev)
688{
689 struct wilc_vif *vif;
690 struct wilc *wilc;
691
692 vif = netdev_priv(dev);
693 wilc = vif->wilc;
694
695 wilc->txq_thread = kthread_run(linux_wlan_txq_task, (void *)dev,
696 "K_TXQ_TASK");
697 if (IS_ERR(wilc->txq_thread)) {
698 netdev_err(dev, "couldn't create TXQ thread\n");
699 wilc->close = 0;
700 return PTR_ERR(wilc->txq_thread);
701 }
702 wait_for_completion(&wilc->txq_thread_started);
703
704 return 0;
705}
706
707static void wlan_deinitialize_threads(struct net_device *dev)
708{
709 struct wilc_vif *vif;
710 struct wilc *wl;
711
712 vif = netdev_priv(dev);
713 wl = vif->wilc;
714
715 wl->close = 1;
716
717 if (&wl->txq_event)
718 complete(&wl->txq_event);
719
720 if (wl->txq_thread) {
721 kthread_stop(wl->txq_thread);
722 wl->txq_thread = NULL;
723 }
724}
725
726int wilc1000_wlan_init(struct net_device *dev, struct wilc_vif *vif)
727{
728 int ret = 0;
729 struct wilc *wl = vif->wilc;
730
731 if (!wl->initialized) {
732 wl->mac_status = WILC_MAC_STATUS_INIT;
733 wl->close = 0;
734
735 wlan_init_locks(dev);
736
737 ret = wilc_wlan_init(dev);
738 if (ret < 0) {
739 ret = -EIO;
740 goto _fail_locks_;
741 }
742
743 if (wl->gpio >= 0 && init_irq(dev)) {
744 ret = -EIO;
745 goto _fail_locks_;
746 }
747
748 ret = wlan_initialize_threads(dev);
749 if (ret < 0) {
750 ret = -EIO;
751 goto _fail_wilc_wlan_;
752 }
753
754 if (!wl->dev_irq_num &&
755 wl->hif_func->enable_interrupt &&
756 wl->hif_func->enable_interrupt(wl)) {
757 ret = -EIO;
758 goto _fail_irq_init_;
759 }
760
761 if (wilc_wlan_get_firmware(dev)) {
762 ret = -EIO;
763 goto _fail_irq_enable_;
764 }
765
766 ret = wilc1000_firmware_download(dev);
767 if (ret < 0) {
768 ret = -EIO;
769 goto _fail_irq_enable_;
770 }
771
772 ret = linux_wlan_start_firmware(dev);
773 if (ret < 0) {
774 ret = -EIO;
775 goto _fail_irq_enable_;
776 }
777
778 if (wilc_wlan_cfg_get(vif, 1, WID_FIRMWARE_VERSION, 1, 0)) {
779 int size;
780 char firmware_ver[20];
781
782 size = wilc_wlan_cfg_get_val(WID_FIRMWARE_VERSION,
783 firmware_ver,
784 sizeof(firmware_ver));
785 firmware_ver[size] = '\0';
786 netdev_dbg(dev, "Firmware Ver = %s\n", firmware_ver);
787 }
788 ret = linux_wlan_init_test_config(dev, vif);
789
790 if (ret < 0) {
791 netdev_err(dev, "Failed to configure firmware\n");
792 ret = -EIO;
793 goto _fail_fw_start_;
794 }
795
796 wl->initialized = true;
797 return 0;
798
799_fail_fw_start_:
800 wilc_wlan_stop(wl);
801
802_fail_irq_enable_:
803 if (!wl->dev_irq_num &&
804 wl->hif_func->disable_interrupt)
805 wl->hif_func->disable_interrupt(wl);
806_fail_irq_init_:
807 if (wl->dev_irq_num)
808 deinit_irq(dev);
809
810 wlan_deinitialize_threads(dev);
811_fail_wilc_wlan_:
812 wilc_wlan_cleanup(dev);
813_fail_locks_:
814 wlan_deinit_locks(dev);
815 netdev_err(dev, "WLAN Iinitialization FAILED\n");
816 } else {
817 netdev_dbg(dev, "wilc1000 already initialized\n");
818 }
819 return ret;
820}
821
822static int mac_init_fn(struct net_device *ndev)
823{
824 netif_start_queue(ndev);
825 netif_stop_queue(ndev);
826
827 return 0;
828}
829
830static int wilc_mac_open(struct net_device *ndev)
831{
832 struct wilc_vif *vif;
833
834 unsigned char mac_add[ETH_ALEN] = {0};
835 int ret = 0;
836 int i = 0;
837 struct wilc *wl;
838
839 vif = netdev_priv(ndev);
840 wl = vif->wilc;
841
842 if (!wl || !wl->dev) {
843 netdev_err(ndev, "device not ready\n");
844 return -ENODEV;
845 }
846
847 netdev_dbg(ndev, "MAC OPEN[%p]\n", ndev);
848
849 ret = wilc_init_host_int(ndev);
850 if (ret < 0)
851 return ret;
852
853 ret = wilc1000_wlan_init(ndev, vif);
854 if (ret < 0) {
855 wilc_deinit_host_int(ndev);
856 return ret;
857 }
858
859 for (i = 0; i < wl->vif_num; i++) {
860 if (ndev == wl->vif[i]->ndev) {
861 if (vif->iftype == AP_MODE) {
862 wilc_set_wfi_drv_handler(vif,
863 wilc_get_vif_idx(vif),
864 0);
865 } else if (!wilc_wlan_get_num_conn_ifcs(wl)) {
866 wilc_set_wfi_drv_handler(vif,
867 wilc_get_vif_idx(vif),
868 wl->open_ifcs);
869 } else {
870 if (memcmp(wl->vif[i ^ 1]->bssid,
871 wl->vif[i ^ 1]->src_addr, 6))
872 wilc_set_wfi_drv_handler(vif,
873 wilc_get_vif_idx(vif),
874 0);
875 else
876 wilc_set_wfi_drv_handler(vif,
877 wilc_get_vif_idx(vif),
878 1);
879 }
880 wilc_set_operation_mode(vif, vif->iftype);
881
882 wilc_get_mac_address(vif, mac_add);
883 netdev_dbg(ndev, "Mac address: %pM\n", mac_add);
884 memcpy(wl->vif[i]->src_addr, mac_add, ETH_ALEN);
885
886 break;
887 }
888 }
889
890 memcpy(ndev->dev_addr, wl->vif[i]->src_addr, ETH_ALEN);
891
892 if (!is_valid_ether_addr(ndev->dev_addr)) {
893 netdev_err(ndev, "Wrong MAC address\n");
894 wilc_deinit_host_int(ndev);
895 wilc1000_wlan_deinit(ndev);
896 return -EINVAL;
897 }
898
899 wilc_mgmt_frame_register(vif->ndev->ieee80211_ptr->wiphy,
900 vif->ndev->ieee80211_ptr,
901 vif->frame_reg[0].type,
902 vif->frame_reg[0].reg);
903 wilc_mgmt_frame_register(vif->ndev->ieee80211_ptr->wiphy,
904 vif->ndev->ieee80211_ptr,
905 vif->frame_reg[1].type,
906 vif->frame_reg[1].reg);
907 netif_wake_queue(ndev);
908 wl->open_ifcs++;
909 vif->mac_opened = 1;
910 return 0;
911}
912
913static struct net_device_stats *mac_stats(struct net_device *dev)
914{
915 struct wilc_vif *vif = netdev_priv(dev);
916
917 return &vif->netstats;
918}
919
920static void wilc_set_multicast_list(struct net_device *dev)
921{
922 struct netdev_hw_addr *ha;
923 struct wilc_vif *vif;
924 int i = 0;
925
926 vif = netdev_priv(dev);
927
928 if (dev->flags & IFF_PROMISC)
929 return;
930
931 if ((dev->flags & IFF_ALLMULTI) ||
932 (dev->mc.count) > WILC_MULTICAST_TABLE_SIZE) {
933 wilc_setup_multicast_filter(vif, false, 0);
934 return;
935 }
936
937 if ((dev->mc.count) == 0) {
938 wilc_setup_multicast_filter(vif, true, 0);
939 return;
940 }
941
942 netdev_for_each_mc_addr(ha, dev) {
943 memcpy(wilc_multicast_mac_addr_list[i], ha->addr, ETH_ALEN);
944 netdev_dbg(dev, "Entry[%d]: %x:%x:%x:%x:%x:%x\n", i,
945 wilc_multicast_mac_addr_list[i][0],
946 wilc_multicast_mac_addr_list[i][1],
947 wilc_multicast_mac_addr_list[i][2],
948 wilc_multicast_mac_addr_list[i][3],
949 wilc_multicast_mac_addr_list[i][4],
950 wilc_multicast_mac_addr_list[i][5]);
951 i++;
952 }
953
954 wilc_setup_multicast_filter(vif, true, (dev->mc.count));
955}
956
957static void linux_wlan_tx_complete(void *priv, int status)
958{
959 struct tx_complete_data *pv_data = priv;
960
961 dev_kfree_skb(pv_data->skb);
962 kfree(pv_data);
963}
964
965int wilc_mac_xmit(struct sk_buff *skb, struct net_device *ndev)
966{
967 struct wilc_vif *vif;
968 struct tx_complete_data *tx_data = NULL;
969 int queue_count;
970 char *udp_buf;
971 struct iphdr *ih;
972 struct ethhdr *eth_h;
973 struct wilc *wilc;
974
975 vif = netdev_priv(ndev);
976 wilc = vif->wilc;
977
978 if (skb->dev != ndev) {
979 netdev_err(ndev, "Packet not destined to this device\n");
980 return 0;
981 }
982
983 tx_data = kmalloc(sizeof(*tx_data), GFP_ATOMIC);
984 if (!tx_data) {
985 dev_kfree_skb(skb);
986 netif_wake_queue(ndev);
987 return 0;
988 }
989
990 tx_data->buff = skb->data;
991 tx_data->size = skb->len;
992 tx_data->skb = skb;
993
994 eth_h = (struct ethhdr *)(skb->data);
995 if (eth_h->h_proto == cpu_to_be16(0x8e88))
996 netdev_dbg(ndev, "EAPOL transmitted\n");
997
998 ih = (struct iphdr *)(skb->data + sizeof(struct ethhdr));
999
1000 udp_buf = (char *)ih + sizeof(struct iphdr);
1001 if ((udp_buf[1] == 68 && udp_buf[3] == 67) ||
1002 (udp_buf[1] == 67 && udp_buf[3] == 68))
1003 netdev_dbg(ndev, "DHCP Message transmitted, type:%x %x %x\n",
1004 udp_buf[248], udp_buf[249], udp_buf[250]);
1005
1006 vif->netstats.tx_packets++;
1007 vif->netstats.tx_bytes += tx_data->size;
1008 tx_data->bssid = wilc->vif[vif->idx]->bssid;
1009 queue_count = wilc_wlan_txq_add_net_pkt(ndev, (void *)tx_data,
1010 tx_data->buff, tx_data->size,
1011 linux_wlan_tx_complete);
1012
1013 if (queue_count > FLOW_CONTROL_UPPER_THRESHOLD) {
1014 netif_stop_queue(wilc->vif[0]->ndev);
1015 netif_stop_queue(wilc->vif[1]->ndev);
1016 }
1017
1018 return 0;
1019}
1020
1021static int wilc_mac_close(struct net_device *ndev)
1022{
1023 struct wilc_priv *priv;
1024 struct wilc_vif *vif;
1025 struct host_if_drv *hif_drv;
1026 struct wilc *wl;
1027
1028 vif = netdev_priv(ndev);
1029
1030 if (!vif || !vif->ndev || !vif->ndev->ieee80211_ptr ||
1031 !vif->ndev->ieee80211_ptr->wiphy)
1032 return 0;
1033
1034 priv = wiphy_priv(vif->ndev->ieee80211_ptr->wiphy);
1035 wl = vif->wilc;
1036
1037 if (!priv)
1038 return 0;
1039
1040 hif_drv = (struct host_if_drv *)priv->hif_drv;
1041
1042 netdev_dbg(ndev, "Mac close\n");
1043
1044 if (!wl)
1045 return 0;
1046
1047 if (!hif_drv)
1048 return 0;
1049
1050 if ((wl->open_ifcs) > 0)
1051 wl->open_ifcs--;
1052 else
1053 return 0;
1054
1055 if (vif->ndev) {
1056 netif_stop_queue(vif->ndev);
1057
1058 wilc_deinit_host_int(vif->ndev);
1059 }
1060
1061 if (wl->open_ifcs == 0) {
1062 netdev_dbg(ndev, "Deinitializing wilc1000\n");
1063 wl->close = 1;
1064 wilc1000_wlan_deinit(ndev);
1065 WILC_WFI_deinit_mon_interface();
1066 }
1067
1068 vif->mac_opened = 0;
1069
1070 return 0;
1071}
1072
1073static int mac_ioctl(struct net_device *ndev, struct ifreq *req, int cmd)
1074{
1075 u8 *buff = NULL;
1076 s8 rssi;
1077 u32 size = 0;
1078 struct wilc_vif *vif;
1079 s32 ret = 0;
1080 struct wilc *wilc;
1081
1082 vif = netdev_priv(ndev);
1083 wilc = vif->wilc;
1084
1085 if (!wilc->initialized)
1086 return 0;
1087
1088 switch (cmd) {
1089 case SIOCSIWPRIV:
1090 {
1091 struct iwreq *wrq = (struct iwreq *)req;
1092
1093 size = wrq->u.data.length;
1094
1095 if (size && wrq->u.data.pointer) {
1096 buff = memdup_user(wrq->u.data.pointer,
1097 wrq->u.data.length);
1098 if (IS_ERR(buff))
1099 return PTR_ERR(buff);
1100
1101 if (strncasecmp(buff, "RSSI", size) == 0) {
1102 ret = wilc_get_rssi(vif, &rssi);
1103 netdev_info(ndev, "RSSI :%d\n", rssi);
1104
1105 rssi += 5;
1106
1107 snprintf(buff, size, "rssi %d", rssi);
1108
1109 if (copy_to_user(wrq->u.data.pointer, buff, size)) {
1110 netdev_err(ndev, "failed to copy\n");
1111 ret = -EFAULT;
1112 goto done;
1113 }
1114 }
1115 }
1116 }
1117 break;
1118
1119 default:
1120 {
1121 netdev_info(ndev, "Command - %d - has been received\n", cmd);
1122 ret = -EOPNOTSUPP;
1123 goto done;
1124 }
1125 }
1126
1127done:
1128
1129 kfree(buff);
1130
1131 return ret;
1132}
1133
1134void wilc_frmw_to_linux(struct wilc *wilc, u8 *buff, u32 size, u32 pkt_offset)
1135{
1136 unsigned int frame_len = 0;
1137 int stats;
1138 unsigned char *buff_to_send = NULL;
1139 struct sk_buff *skb;
1140 struct net_device *wilc_netdev;
1141 struct wilc_vif *vif;
1142
1143 if (!wilc)
1144 return;
1145
1146 wilc_netdev = get_if_handler(wilc, buff);
1147 if (!wilc_netdev)
1148 return;
1149
1150 buff += pkt_offset;
1151 vif = netdev_priv(wilc_netdev);
1152
1153 if (size > 0) {
1154 frame_len = size;
1155 buff_to_send = buff;
1156
1157 skb = dev_alloc_skb(frame_len);
1158 if (!skb)
1159 return;
1160
1161 skb->dev = wilc_netdev;
1162
1163 memcpy(skb_put(skb, frame_len), buff_to_send, frame_len);
1164
1165 skb->protocol = eth_type_trans(skb, wilc_netdev);
1166 vif->netstats.rx_packets++;
1167 vif->netstats.rx_bytes += frame_len;
1168 skb->ip_summed = CHECKSUM_UNNECESSARY;
1169 stats = netif_rx(skb);
1170 netdev_dbg(wilc_netdev, "netif_rx ret value is: %d\n", stats);
1171 }
1172}
1173
1174void WILC_WFI_mgmt_rx(struct wilc *wilc, u8 *buff, u32 size)
1175{
1176 int i = 0;
1177 struct wilc_vif *vif;
1178
1179 for (i = 0; i < wilc->vif_num; i++) {
1180 vif = netdev_priv(wilc->vif[i]->ndev);
1181 if (vif->monitor_flag) {
1182 WILC_WFI_monitor_rx(buff, size);
1183 return;
1184 }
1185 }
1186
1187 vif = netdev_priv(wilc->vif[1]->ndev);
1188 if ((buff[0] == vif->frame_reg[0].type && vif->frame_reg[0].reg) ||
1189 (buff[0] == vif->frame_reg[1].type && vif->frame_reg[1].reg))
1190 WILC_WFI_p2p_rx(wilc->vif[1]->ndev, buff, size);
1191}
1192
1193void wilc_netdev_cleanup(struct wilc *wilc)
1194{
1195 int i;
1196
1197 if (wilc && (wilc->vif[0]->ndev || wilc->vif[1]->ndev))
1198 unregister_inetaddr_notifier(&g_dev_notifier);
1199
1200 if (wilc && wilc->firmware) {
1201 release_firmware(wilc->firmware);
1202 wilc->firmware = NULL;
1203 }
1204
1205 if (wilc && (wilc->vif[0]->ndev || wilc->vif[1]->ndev)) {
1206 for (i = 0; i < NUM_CONCURRENT_IFC; i++)
1207 if (wilc->vif[i]->ndev)
1208 if (wilc->vif[i]->mac_opened)
1209 wilc_mac_close(wilc->vif[i]->ndev);
1210
1211 for (i = 0; i < NUM_CONCURRENT_IFC; i++) {
1212 unregister_netdev(wilc->vif[i]->ndev);
1213 wilc_free_wiphy(wilc->vif[i]->ndev);
1214 free_netdev(wilc->vif[i]->ndev);
1215 }
1216 }
1217
1218 kfree(wilc);
1219}
1220EXPORT_SYMBOL_GPL(wilc_netdev_cleanup);
1221
1222int wilc_netdev_init(struct wilc **wilc, struct device *dev, int io_type,
1223 int gpio, const struct wilc_hif_func *ops)
1224{
1225 int i, ret;
1226 struct wilc_vif *vif;
1227 struct net_device *ndev;
1228 struct wilc *wl;
1229
1230 wl = kzalloc(sizeof(*wl), GFP_KERNEL);
1231 if (!wl)
1232 return -ENOMEM;
1233
1234 *wilc = wl;
1235 wl->io_type = io_type;
1236 wl->gpio = gpio;
1237 wl->hif_func = ops;
1238
1239 register_inetaddr_notifier(&g_dev_notifier);
1240
1241 for (i = 0; i < NUM_CONCURRENT_IFC; i++) {
1242 ndev = alloc_etherdev(sizeof(struct wilc_vif));
1243 if (!ndev)
1244 return -ENOMEM;
1245
1246 vif = netdev_priv(ndev);
1247 memset(vif, 0, sizeof(struct wilc_vif));
1248
1249 if (i == 0)
1250 strcpy(ndev->name, "wlan%d");
1251 else
1252 strcpy(ndev->name, "p2p%d");
1253
1254 vif->wilc = *wilc;
1255 vif->ndev = ndev;
1256 wl->vif[i] = vif;
1257 wl->vif_num = i;
1258 vif->idx = wl->vif_num;
1259
1260 ndev->netdev_ops = &wilc_netdev_ops;
1261
1262 {
1263 struct wireless_dev *wdev;
1264
1265 wdev = wilc_create_wiphy(ndev, dev);
1266
1267 if (dev)
1268 SET_NETDEV_DEV(ndev, dev);
1269
1270 if (!wdev) {
1271 netdev_err(ndev, "Can't register WILC Wiphy\n");
1272 return -1;
1273 }
1274
1275 vif->ndev->ieee80211_ptr = wdev;
1276 vif->ndev->ml_priv = vif;
1277 wdev->netdev = vif->ndev;
1278 vif->netstats.rx_packets = 0;
1279 vif->netstats.tx_packets = 0;
1280 vif->netstats.rx_bytes = 0;
1281 vif->netstats.tx_bytes = 0;
1282 }
1283
1284 ret = register_netdev(ndev);
1285 if (ret)
1286 return ret;
1287
1288 vif->iftype = STATION_MODE;
1289 vif->mac_opened = 0;
1290 }
1291
1292 return 0;
1293}
1294EXPORT_SYMBOL_GPL(wilc_netdev_init);
1295
1296MODULE_LICENSE("GPL");
1297
