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247e9cff SA |
1 | /* |
2 | * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved. | |
3 | * | |
4 | * This software is licensed under the terms of the GNU General Public | |
5 | * License version 2, as published by the Free Software Foundation, and | |
6 | * may be copied, distributed, and modified under those terms. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | */ | |
13 | ||
247e9cff SA |
14 | #include <linux/etherdevice.h> |
15 | #include <asm/byteorder.h> | |
16 | #include <linux/ip.h> | |
17 | #include <linux/ipv6.h> | |
18 | #include <linux/udp.h> | |
19 | #include <linux/in.h> | |
20 | ||
21 | #include "gdm_wimax.h" | |
22 | #include "hci.h" | |
23 | #include "wm_ioctl.h" | |
24 | #include "netlink_k.h" | |
25 | ||
26 | #define gdm_wimax_send(n, d, l) \ | |
27 | (n->phy_dev->send_func)(n->phy_dev->priv_dev, d, l, NULL, NULL) | |
28 | #define gdm_wimax_send_with_cb(n, d, l, c, b) \ | |
29 | (n->phy_dev->send_func)(n->phy_dev->priv_dev, d, l, c, b) | |
30 | #define gdm_wimax_rcv_with_cb(n, c, b) \ | |
31 | (n->phy_dev->rcv_func)(n->phy_dev->priv_dev, c, b) | |
32 | ||
33 | #define EVT_MAX_SIZE 2048 | |
34 | ||
35 | struct evt_entry { | |
36 | struct list_head list; | |
37 | struct net_device *dev; | |
38 | char evt_data[EVT_MAX_SIZE]; | |
39 | int size; | |
40 | }; | |
41 | ||
42 | static void __gdm_wimax_event_send(struct work_struct *work); | |
43 | static inline struct evt_entry *alloc_event_entry(void); | |
44 | static inline void free_event_entry(struct evt_entry *e); | |
45 | static struct evt_entry *get_event_entry(void); | |
46 | static void put_event_entry(struct evt_entry *e); | |
47 | ||
48 | static struct { | |
49 | int ref_cnt; | |
50 | struct sock *sock; | |
51 | struct list_head evtq; | |
52 | spinlock_t evt_lock; | |
53 | ||
54 | struct list_head freeq; | |
55 | struct work_struct ws; | |
56 | } wm_event; | |
57 | ||
58 | static u8 gdm_wimax_macaddr[6] = {0x00, 0x0a, 0x3b, 0xf0, 0x01, 0x30}; | |
59 | ||
60 | static void gdm_wimax_ind_fsm_update(struct net_device *dev, struct fsm_s *fsm); | |
61 | static void gdm_wimax_ind_if_updown(struct net_device *dev, int if_up); | |
62 | ||
63 | #if defined(DEBUG_SDU) | |
64 | static void printk_hex(u8 *buf, u32 size) | |
65 | { | |
66 | int i; | |
67 | ||
68 | for (i = 0; i < size; i++) { | |
69 | if (i && i % 16 == 0) | |
70 | printk(KERN_DEBUG "\n%02x ", *buf++); | |
71 | else | |
72 | printk(KERN_DEBUG "%02x ", *buf++); | |
73 | } | |
74 | ||
75 | printk(KERN_DEBUG "\n"); | |
76 | } | |
77 | ||
78 | static const char *get_protocol_name(u16 protocol) | |
79 | { | |
80 | static char buf[32]; | |
81 | const char *name = "-"; | |
82 | ||
83 | switch (protocol) { | |
84 | case ETH_P_ARP: | |
85 | name = "ARP"; | |
86 | break; | |
87 | case ETH_P_IP: | |
88 | name = "IP"; | |
89 | break; | |
90 | case ETH_P_IPV6: | |
91 | name = "IPv6"; | |
92 | break; | |
93 | } | |
94 | ||
95 | sprintf(buf, "0x%04x(%s)", protocol, name); | |
96 | return buf; | |
97 | } | |
98 | ||
99 | static const char *get_ip_protocol_name(u8 ip_protocol) | |
100 | { | |
101 | static char buf[32]; | |
102 | const char *name = "-"; | |
103 | ||
104 | switch (ip_protocol) { | |
105 | case IPPROTO_TCP: | |
106 | name = "TCP"; | |
107 | break; | |
108 | case IPPROTO_UDP: | |
109 | name = "UDP"; | |
110 | break; | |
111 | case IPPROTO_ICMP: | |
112 | name = "ICMP"; | |
113 | break; | |
114 | } | |
115 | ||
116 | sprintf(buf, "%u(%s)", ip_protocol, name); | |
117 | return buf; | |
118 | } | |
119 | ||
120 | static const char *get_port_name(u16 port) | |
121 | { | |
122 | static char buf[32]; | |
123 | const char *name = "-"; | |
124 | ||
125 | switch (port) { | |
126 | case 67: | |
127 | name = "DHCP-Server"; | |
128 | break; | |
129 | case 68: | |
130 | name = "DHCP-Client"; | |
131 | break; | |
132 | case 69: | |
133 | name = "TFTP"; | |
134 | break; | |
135 | } | |
136 | ||
137 | sprintf(buf, "%u(%s)", port, name); | |
138 | return buf; | |
139 | } | |
140 | ||
141 | static void dump_eth_packet(const char *title, u8 *data, int len) | |
142 | { | |
143 | struct iphdr *ih = NULL; | |
144 | struct udphdr *uh = NULL; | |
145 | u16 protocol = 0; | |
146 | u8 ip_protocol = 0; | |
147 | u16 port = 0; | |
148 | ||
149 | protocol = (data[12]<<8) | data[13]; | |
150 | ih = (struct iphdr *) (data+ETH_HLEN); | |
151 | ||
152 | if (protocol == ETH_P_IP) { | |
153 | uh = (struct udphdr *) ((char *)ih + sizeof(struct iphdr)); | |
154 | ip_protocol = ih->protocol; | |
155 | port = ntohs(uh->dest); | |
156 | } else if (protocol == ETH_P_IPV6) { | |
157 | struct ipv6hdr *i6h = (struct ipv6hdr *) data; | |
158 | uh = (struct udphdr *) ((char *)i6h + sizeof(struct ipv6hdr)); | |
159 | ip_protocol = i6h->nexthdr; | |
160 | port = ntohs(uh->dest); | |
161 | } | |
162 | ||
163 | printk(KERN_DEBUG "[%s] len=%d, %s, %s, %s\n", | |
164 | title, len, | |
165 | get_protocol_name(protocol), | |
166 | get_ip_protocol_name(ip_protocol), | |
167 | get_port_name(port)); | |
168 | ||
169 | #if 1 | |
170 | if (!(data[0] == 0xff && data[1] == 0xff)) { | |
171 | if (protocol == ETH_P_IP) { | |
172 | printk(KERN_DEBUG " src=%u.%u.%u.%u\n", | |
173 | NIPQUAD(ih->saddr)); | |
174 | } else if (protocol == ETH_P_IPV6) { | |
175 | #ifdef NIP6 | |
176 | printk(KERN_DEBUG " src=%x:%x:%x:%x:%x:%x:%x:%x\n", | |
177 | NIP6(ih->saddr)); | |
178 | #else | |
179 | printk(KERN_DEBUG " src=%pI6\n", &ih->saddr); | |
180 | #endif | |
181 | } | |
182 | } | |
183 | #endif | |
184 | ||
185 | #if (DUMP_PACKET & DUMP_SDU_ALL) | |
186 | printk_hex(data, len); | |
187 | #else | |
188 | #if (DUMP_PACKET & DUMP_SDU_ARP) | |
189 | if (protocol == ETH_P_ARP) | |
190 | printk_hex(data, len); | |
191 | #endif | |
192 | #if (DUMP_PACKET & DUMP_SDU_IP) | |
193 | if (protocol == ETH_P_IP || protocol == ETH_P_IPV6) | |
194 | printk_hex(data, len); | |
195 | #else | |
196 | #if (DUMP_PACKET & DUMP_SDU_IP_TCP) | |
197 | if (ip_protocol == IPPROTO_TCP) | |
198 | printk_hex(data, len); | |
199 | #endif | |
200 | #if (DUMP_PACKET & DUMP_SDU_IP_UDP) | |
201 | if (ip_protocol == IPPROTO_UDP) | |
202 | printk_hex(data, len); | |
203 | #endif | |
204 | #if (DUMP_PACKET & DUMP_SDU_IP_ICMP) | |
205 | if (ip_protocol == IPPROTO_ICMP) | |
206 | printk_hex(data, len); | |
207 | #endif | |
208 | #endif | |
209 | #endif | |
210 | } | |
211 | #endif | |
212 | ||
213 | ||
214 | static inline int gdm_wimax_header(struct sk_buff **pskb) | |
215 | { | |
216 | u16 buf[HCI_HEADER_SIZE / sizeof(u16)]; | |
217 | struct sk_buff *skb = *pskb; | |
218 | int ret = 0; | |
219 | ||
220 | if (unlikely(skb_headroom(skb) < HCI_HEADER_SIZE)) { | |
221 | struct sk_buff *skb2; | |
222 | ||
223 | skb2 = skb_realloc_headroom(skb, HCI_HEADER_SIZE); | |
224 | if (skb2 == NULL) | |
225 | return -ENOMEM; | |
226 | if (skb->sk) | |
227 | skb_set_owner_w(skb2, skb->sk); | |
228 | kfree_skb(skb); | |
229 | skb = skb2; | |
230 | } | |
231 | ||
232 | skb_push(skb, HCI_HEADER_SIZE); | |
233 | buf[0] = H2B(WIMAX_TX_SDU); | |
234 | buf[1] = H2B(skb->len - HCI_HEADER_SIZE); | |
235 | memcpy(skb->data, buf, HCI_HEADER_SIZE); | |
236 | ||
237 | *pskb = skb; | |
238 | return ret; | |
239 | } | |
240 | ||
241 | static void gdm_wimax_event_rcv(struct net_device *dev, u16 type, void *msg, | |
242 | int len) | |
243 | { | |
244 | struct nic *nic = netdev_priv(dev); | |
245 | ||
246 | #if defined(DEBUG_HCI) | |
247 | u8 *buf = (u8 *) msg; | |
248 | u16 hci_cmd = (buf[0]<<8) | buf[1]; | |
249 | u16 hci_len = (buf[2]<<8) | buf[3]; | |
250 | printk(KERN_DEBUG "H=>D: 0x%04x(%d)\n", hci_cmd, hci_len); | |
251 | #endif | |
252 | ||
253 | gdm_wimax_send(nic, msg, len); | |
254 | } | |
255 | ||
256 | static int gdm_wimax_event_init(void) | |
257 | { | |
8df858ea | 258 | if (!wm_event.ref_cnt) { |
247e9cff SA |
259 | wm_event.sock = netlink_init(NETLINK_WIMAX, |
260 | gdm_wimax_event_rcv); | |
472aba5f BC |
261 | if (wm_event.sock) { |
262 | INIT_LIST_HEAD(&wm_event.evtq); | |
263 | INIT_LIST_HEAD(&wm_event.freeq); | |
264 | INIT_WORK(&wm_event.ws, __gdm_wimax_event_send); | |
265 | spin_lock_init(&wm_event.evt_lock); | |
266 | } | |
267 | } | |
268 | ||
269 | if (wm_event.sock) { | |
270 | wm_event.ref_cnt++; | |
247e9cff SA |
271 | return 0; |
272 | } | |
273 | ||
274 | printk(KERN_ERR "Creating WiMax Event netlink is failed\n"); | |
275 | return -1; | |
276 | } | |
277 | ||
278 | static void gdm_wimax_event_exit(void) | |
279 | { | |
280 | if (wm_event.sock && --wm_event.ref_cnt == 0) { | |
281 | struct evt_entry *e, *temp; | |
282 | unsigned long flags; | |
283 | ||
284 | spin_lock_irqsave(&wm_event.evt_lock, flags); | |
285 | ||
286 | list_for_each_entry_safe(e, temp, &wm_event.evtq, list) { | |
287 | list_del(&e->list); | |
288 | free_event_entry(e); | |
289 | } | |
290 | list_for_each_entry_safe(e, temp, &wm_event.freeq, list) { | |
291 | list_del(&e->list); | |
292 | free_event_entry(e); | |
293 | } | |
294 | ||
295 | spin_unlock_irqrestore(&wm_event.evt_lock, flags); | |
296 | netlink_exit(wm_event.sock); | |
297 | wm_event.sock = NULL; | |
298 | } | |
299 | } | |
300 | ||
301 | static inline struct evt_entry *alloc_event_entry(void) | |
302 | { | |
303 | return kmalloc(sizeof(struct evt_entry), GFP_ATOMIC); | |
304 | } | |
305 | ||
306 | static inline void free_event_entry(struct evt_entry *e) | |
307 | { | |
308 | kfree(e); | |
309 | } | |
310 | ||
311 | static struct evt_entry *get_event_entry(void) | |
312 | { | |
313 | struct evt_entry *e; | |
314 | ||
315 | if (list_empty(&wm_event.freeq)) | |
316 | e = alloc_event_entry(); | |
317 | else { | |
318 | e = list_entry(wm_event.freeq.next, struct evt_entry, list); | |
319 | list_del(&e->list); | |
320 | } | |
321 | ||
322 | return e; | |
323 | } | |
324 | ||
325 | static void put_event_entry(struct evt_entry *e) | |
326 | { | |
327 | BUG_ON(!e); | |
328 | ||
329 | list_add_tail(&e->list, &wm_event.freeq); | |
330 | } | |
331 | ||
332 | static void __gdm_wimax_event_send(struct work_struct *work) | |
333 | { | |
334 | int idx; | |
335 | unsigned long flags; | |
336 | struct evt_entry *e; | |
337 | ||
338 | spin_lock_irqsave(&wm_event.evt_lock, flags); | |
339 | ||
340 | while (!list_empty(&wm_event.evtq)) { | |
341 | e = list_entry(wm_event.evtq.next, struct evt_entry, list); | |
342 | spin_unlock_irqrestore(&wm_event.evt_lock, flags); | |
343 | ||
344 | sscanf(e->dev->name, "wm%d", &idx); | |
345 | netlink_send(wm_event.sock, idx, 0, e->evt_data, e->size); | |
346 | ||
347 | spin_lock_irqsave(&wm_event.evt_lock, flags); | |
348 | list_del(&e->list); | |
349 | put_event_entry(e); | |
350 | } | |
351 | ||
352 | spin_unlock_irqrestore(&wm_event.evt_lock, flags); | |
353 | } | |
354 | ||
355 | static int gdm_wimax_event_send(struct net_device *dev, char *buf, int size) | |
356 | { | |
357 | struct evt_entry *e; | |
358 | unsigned long flags; | |
359 | ||
360 | #if defined(DEBUG_HCI) | |
361 | u16 hci_cmd = ((u8)buf[0]<<8) | (u8)buf[1]; | |
362 | u16 hci_len = ((u8)buf[2]<<8) | (u8)buf[3]; | |
363 | printk(KERN_DEBUG "D=>H: 0x%04x(%d)\n", hci_cmd, hci_len); | |
364 | #endif | |
365 | ||
366 | spin_lock_irqsave(&wm_event.evt_lock, flags); | |
367 | ||
368 | e = get_event_entry(); | |
369 | if (!e) { | |
370 | printk(KERN_ERR "%s: No memory for event\n", __func__); | |
371 | spin_unlock_irqrestore(&wm_event.evt_lock, flags); | |
372 | return -ENOMEM; | |
373 | } | |
374 | ||
375 | e->dev = dev; | |
376 | e->size = size; | |
377 | memcpy(e->evt_data, buf, size); | |
378 | ||
379 | list_add_tail(&e->list, &wm_event.evtq); | |
380 | spin_unlock_irqrestore(&wm_event.evt_lock, flags); | |
381 | ||
382 | schedule_work(&wm_event.ws); | |
383 | ||
384 | return 0; | |
385 | } | |
386 | ||
387 | static void tx_complete(void *arg) | |
388 | { | |
389 | struct nic *nic = arg; | |
390 | ||
391 | if (netif_queue_stopped(nic->netdev)) | |
392 | netif_wake_queue(nic->netdev); | |
393 | } | |
394 | ||
395 | int gdm_wimax_send_tx(struct sk_buff *skb, struct net_device *dev) | |
396 | { | |
397 | int ret = 0; | |
398 | struct nic *nic = netdev_priv(dev); | |
399 | ||
400 | ret = gdm_wimax_send_with_cb(nic, skb->data, skb->len, tx_complete, | |
401 | nic); | |
402 | if (ret == -ENOSPC) { | |
403 | netif_stop_queue(dev); | |
404 | ret = 0; | |
405 | } | |
406 | ||
407 | if (ret) { | |
408 | skb_pull(skb, HCI_HEADER_SIZE); | |
409 | return ret; | |
410 | } | |
411 | ||
412 | nic->stats.tx_packets++; | |
413 | nic->stats.tx_bytes += skb->len - HCI_HEADER_SIZE; | |
414 | kfree_skb(skb); | |
415 | return ret; | |
416 | } | |
417 | ||
418 | static int gdm_wimax_tx(struct sk_buff *skb, struct net_device *dev) | |
419 | { | |
420 | int ret = 0; | |
421 | struct nic *nic = netdev_priv(dev); | |
422 | struct fsm_s *fsm = (struct fsm_s *) nic->sdk_data[SIOC_DATA_FSM].buf; | |
423 | ||
424 | #if defined(DEBUG_SDU) | |
425 | dump_eth_packet("TX", skb->data, skb->len); | |
426 | #endif | |
427 | ||
428 | ret = gdm_wimax_header(&skb); | |
429 | if (ret < 0) { | |
430 | skb_pull(skb, HCI_HEADER_SIZE); | |
431 | return ret; | |
432 | } | |
433 | ||
434 | #if !defined(LOOPBACK_TEST) | |
435 | if (!fsm) | |
436 | printk(KERN_ERR "ASSERTION ERROR: fsm is NULL!!\n"); | |
437 | else if (fsm->m_status != M_CONNECTED) { | |
438 | printk(KERN_EMERG "ASSERTION ERROR: Device is NOT ready. status=%d\n", | |
439 | fsm->m_status); | |
440 | kfree_skb(skb); | |
441 | return 0; | |
442 | } | |
443 | #endif | |
444 | ||
445 | #if defined(CONFIG_WIMAX_GDM72XX_QOS) | |
446 | ret = gdm_qos_send_hci_pkt(skb, dev); | |
447 | #else | |
448 | ret = gdm_wimax_send_tx(skb, dev); | |
449 | #endif | |
450 | return ret; | |
451 | } | |
452 | ||
453 | static int gdm_wimax_set_config(struct net_device *dev, struct ifmap *map) | |
454 | { | |
455 | if (dev->flags & IFF_UP) | |
456 | return -EBUSY; | |
457 | ||
458 | return 0; | |
459 | } | |
460 | ||
461 | static void __gdm_wimax_set_mac_addr(struct net_device *dev, char *mac_addr) | |
462 | { | |
463 | u16 hci_pkt_buf[32 / sizeof(u16)]; | |
464 | u8 *pkt = (u8 *) &hci_pkt_buf[0]; | |
465 | struct nic *nic = netdev_priv(dev); | |
466 | ||
467 | /* Since dev is registered as a ethernet device, | |
468 | * ether_setup has made dev->addr_len to be ETH_ALEN | |
469 | */ | |
470 | memcpy(dev->dev_addr, mac_addr, dev->addr_len); | |
471 | ||
472 | /* Let lower layer know of this change by sending | |
473 | * SetInformation(MAC Address) | |
474 | */ | |
475 | hci_pkt_buf[0] = H2B(WIMAX_SET_INFO); /* cmd_evt */ | |
476 | hci_pkt_buf[1] = H2B(8); /* size */ | |
477 | pkt[4] = 0; /* T */ | |
478 | pkt[5] = 6; /* L */ | |
479 | memcpy(pkt + 6, mac_addr, dev->addr_len); /* V */ | |
480 | ||
481 | gdm_wimax_send(nic, pkt, HCI_HEADER_SIZE + 8); | |
482 | } | |
483 | ||
484 | /* A driver function */ | |
485 | static int gdm_wimax_set_mac_addr(struct net_device *dev, void *p) | |
486 | { | |
487 | struct sockaddr *addr = p; | |
488 | ||
489 | if (netif_running(dev)) | |
490 | return -EBUSY; | |
491 | ||
492 | if (!is_valid_ether_addr(addr->sa_data)) | |
493 | return -EADDRNOTAVAIL; | |
494 | ||
495 | __gdm_wimax_set_mac_addr(dev, addr->sa_data); | |
496 | ||
497 | return 0; | |
498 | } | |
499 | ||
500 | static struct net_device_stats *gdm_wimax_stats(struct net_device *dev) | |
501 | { | |
502 | struct nic *nic = netdev_priv(dev); | |
503 | ||
504 | return &nic->stats; | |
505 | } | |
506 | ||
507 | static int gdm_wimax_open(struct net_device *dev) | |
508 | { | |
509 | struct nic *nic = netdev_priv(dev); | |
510 | struct fsm_s *fsm = (struct fsm_s *) nic->sdk_data[SIOC_DATA_FSM].buf; | |
511 | ||
512 | netif_start_queue(dev); | |
513 | ||
514 | if (fsm && fsm->m_status != M_INIT) | |
515 | gdm_wimax_ind_if_updown(dev, 1); | |
516 | return 0; | |
517 | } | |
518 | ||
519 | static int gdm_wimax_close(struct net_device *dev) | |
520 | { | |
521 | struct nic *nic = netdev_priv(dev); | |
522 | struct fsm_s *fsm = (struct fsm_s *) nic->sdk_data[SIOC_DATA_FSM].buf; | |
523 | ||
524 | netif_stop_queue(dev); | |
525 | ||
526 | if (fsm && fsm->m_status != M_INIT) | |
527 | gdm_wimax_ind_if_updown(dev, 0); | |
528 | return 0; | |
529 | } | |
530 | ||
531 | static void kdelete(void **buf) | |
532 | { | |
533 | if (buf && *buf) { | |
534 | kfree(*buf); | |
535 | *buf = NULL; | |
536 | } | |
537 | } | |
538 | ||
539 | static int gdm_wimax_ioctl_get_data(struct data_s *dst, struct data_s *src) | |
540 | { | |
541 | int size; | |
542 | ||
543 | size = dst->size < src->size ? dst->size : src->size; | |
544 | ||
545 | dst->size = size; | |
546 | if (src->size) { | |
547 | if (!dst->buf) | |
548 | return -EINVAL; | |
549 | if (copy_to_user(dst->buf, src->buf, size)) | |
550 | return -EFAULT; | |
551 | } | |
552 | return 0; | |
553 | } | |
554 | ||
555 | static int gdm_wimax_ioctl_set_data(struct data_s *dst, struct data_s *src) | |
556 | { | |
557 | if (!src->size) { | |
558 | dst->size = 0; | |
559 | return 0; | |
560 | } | |
561 | ||
562 | if (!src->buf) | |
563 | return -EINVAL; | |
564 | ||
565 | if (!(dst->buf && dst->size == src->size)) { | |
566 | kdelete(&dst->buf); | |
567 | dst->buf = kmalloc(src->size, GFP_KERNEL); | |
568 | if (dst->buf == NULL) | |
569 | return -ENOMEM; | |
570 | } | |
571 | ||
572 | if (copy_from_user(dst->buf, src->buf, src->size)) { | |
573 | kdelete(&dst->buf); | |
574 | return -EFAULT; | |
575 | } | |
576 | dst->size = src->size; | |
577 | return 0; | |
578 | } | |
579 | ||
580 | static void gdm_wimax_cleanup_ioctl(struct net_device *dev) | |
581 | { | |
582 | struct nic *nic = netdev_priv(dev); | |
583 | int i; | |
584 | ||
585 | for (i = 0; i < SIOC_DATA_MAX; i++) | |
586 | kdelete(&nic->sdk_data[i].buf); | |
587 | } | |
588 | ||
589 | static void gdm_update_fsm(struct net_device *dev, struct fsm_s *new_fsm) | |
590 | { | |
591 | struct nic *nic = netdev_priv(dev); | |
592 | struct fsm_s *cur_fsm = | |
593 | (struct fsm_s *) nic->sdk_data[SIOC_DATA_FSM].buf; | |
594 | ||
595 | if (!cur_fsm) | |
596 | return; | |
597 | ||
598 | if (cur_fsm->m_status != new_fsm->m_status || | |
599 | cur_fsm->c_status != new_fsm->c_status) { | |
600 | if (new_fsm->m_status == M_CONNECTED) | |
601 | netif_carrier_on(dev); | |
602 | else if (cur_fsm->m_status == M_CONNECTED) { | |
603 | netif_carrier_off(dev); | |
604 | #if defined(CONFIG_WIMAX_GDM72XX_QOS) | |
605 | gdm_qos_release_list(nic); | |
606 | #endif | |
607 | } | |
608 | gdm_wimax_ind_fsm_update(dev, new_fsm); | |
609 | } | |
610 | } | |
611 | ||
612 | static int gdm_wimax_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) | |
613 | { | |
614 | struct wm_req_s *req = (struct wm_req_s *) ifr; | |
615 | struct nic *nic = netdev_priv(dev); | |
616 | int ret; | |
617 | ||
618 | if (cmd != SIOCWMIOCTL) | |
619 | return -EOPNOTSUPP; | |
620 | ||
621 | switch (req->cmd) { | |
622 | case SIOCG_DATA: | |
623 | case SIOCS_DATA: | |
624 | if (req->data_id >= SIOC_DATA_MAX) { | |
625 | printk(KERN_ERR | |
626 | "%s error: data-index(%d) is invalid!!\n", | |
627 | __func__, req->data_id); | |
628 | return -EOPNOTSUPP; | |
629 | } | |
630 | if (req->cmd == SIOCG_DATA) { | |
631 | ret = gdm_wimax_ioctl_get_data(&req->data, | |
632 | &nic->sdk_data[req->data_id]); | |
633 | if (ret < 0) | |
634 | return ret; | |
635 | } else if (req->cmd == SIOCS_DATA) { | |
636 | if (req->data_id == SIOC_DATA_FSM) { | |
637 | /*NOTE: gdm_update_fsm should be called | |
638 | before gdm_wimax_ioctl_set_data is called*/ | |
639 | gdm_update_fsm(dev, | |
640 | (struct fsm_s *) req->data.buf); | |
641 | } | |
642 | ret = gdm_wimax_ioctl_set_data( | |
643 | &nic->sdk_data[req->data_id], &req->data); | |
644 | if (ret < 0) | |
645 | return ret; | |
646 | } | |
647 | break; | |
648 | default: | |
649 | printk(KERN_ERR "%s: %x unknown ioctl\n", __func__, cmd); | |
650 | return -EOPNOTSUPP; | |
651 | } | |
652 | ||
653 | return 0; | |
654 | } | |
655 | ||
656 | static void gdm_wimax_prepare_device(struct net_device *dev) | |
657 | { | |
658 | struct nic *nic = netdev_priv(dev); | |
659 | u16 buf[32 / sizeof(u16)]; | |
660 | struct hci_s *hci = (struct hci_s *) buf; | |
661 | u16 len = 0; | |
662 | u32 val = 0; | |
663 | ||
664 | #define BIT_MULTI_CS 0 | |
665 | #define BIT_WIMAX 1 | |
666 | #define BIT_QOS 2 | |
667 | #define BIT_AGGREGATION 3 | |
668 | ||
669 | /* GetInformation mac address */ | |
670 | len = 0; | |
671 | hci->cmd_evt = H2B(WIMAX_GET_INFO); | |
672 | hci->data[len++] = TLV_T(T_MAC_ADDRESS); | |
673 | hci->length = H2B(len); | |
674 | gdm_wimax_send(nic, hci, HCI_HEADER_SIZE+len); | |
675 | ||
676 | val = (1<<BIT_WIMAX) | (1<<BIT_MULTI_CS); | |
677 | #if defined(CONFIG_WIMAX_GDM72XX_QOS) | |
678 | val |= (1<<BIT_QOS); | |
679 | #endif | |
680 | #if defined(CONFIG_WIMAX_GDM72XX_WIMAX2) | |
681 | val |= (1<<BIT_AGGREGATION); | |
682 | #endif | |
683 | ||
684 | /* Set capability */ | |
685 | len = 0; | |
686 | hci->cmd_evt = H2B(WIMAX_SET_INFO); | |
687 | hci->data[len++] = TLV_T(T_CAPABILITY); | |
688 | hci->data[len++] = TLV_L(T_CAPABILITY); | |
689 | val = DH2B(val); | |
690 | memcpy(&hci->data[len], &val, TLV_L(T_CAPABILITY)); | |
691 | len += TLV_L(T_CAPABILITY); | |
692 | hci->length = H2B(len); | |
693 | gdm_wimax_send(nic, hci, HCI_HEADER_SIZE+len); | |
694 | ||
695 | printk(KERN_INFO "GDM WiMax Set CAPABILITY: 0x%08X\n", DB2H(val)); | |
696 | } | |
697 | ||
698 | static int gdm_wimax_hci_get_tlv(u8 *buf, u8 *T, u16 *L, u8 **V) | |
699 | { | |
700 | #define __U82U16(b) ((u16)((u8 *)(b))[0] | ((u16)((u8 *)(b))[1] << 8)) | |
701 | int next_pos; | |
702 | ||
703 | *T = buf[0]; | |
704 | if (buf[1] == 0x82) { | |
705 | *L = B2H(__U82U16(&buf[2])); | |
706 | next_pos = 1/*type*/+3/*len*/; | |
707 | } else { | |
708 | *L = buf[1]; | |
709 | next_pos = 1/*type*/+1/*len*/; | |
710 | } | |
711 | *V = &buf[next_pos]; | |
712 | ||
713 | next_pos += *L/*length of val*/; | |
714 | return next_pos; | |
715 | } | |
716 | ||
717 | static int gdm_wimax_get_prepared_info(struct net_device *dev, char *buf, | |
718 | int len) | |
719 | { | |
720 | u8 T, *V; | |
721 | u16 L; | |
722 | u16 cmd_evt, cmd_len; | |
723 | int pos = HCI_HEADER_SIZE; | |
724 | ||
725 | cmd_evt = B2H(*(u16 *)&buf[0]); | |
726 | cmd_len = B2H(*(u16 *)&buf[2]); | |
727 | ||
728 | if (len < cmd_len + HCI_HEADER_SIZE) { | |
729 | printk(KERN_ERR "%s: invalid length [%d/%d]\n", __func__, | |
730 | cmd_len + HCI_HEADER_SIZE, len); | |
731 | return -1; | |
732 | } | |
733 | ||
734 | if (cmd_evt == WIMAX_GET_INFO_RESULT) { | |
735 | if (cmd_len < 2) { | |
736 | printk(KERN_ERR "%s: len is too short [%x/%d]\n", | |
737 | __func__, cmd_evt, len); | |
738 | return -1; | |
739 | } | |
740 | ||
741 | pos += gdm_wimax_hci_get_tlv(&buf[pos], &T, &L, &V); | |
742 | if (T == TLV_T(T_MAC_ADDRESS)) { | |
743 | if (L != dev->addr_len) { | |
744 | printk(KERN_ERR | |
745 | "%s Invalid inofrmation result T/L " | |
746 | "[%x/%d]\n", __func__, T, L); | |
747 | return -1; | |
748 | } | |
e7ecb0fb AS |
749 | printk(KERN_INFO "MAC change [%pM]->[%pM]\n", |
750 | dev->dev_addr, V); | |
247e9cff SA |
751 | memcpy(dev->dev_addr, V, dev->addr_len); |
752 | return 1; | |
753 | } | |
754 | } | |
755 | ||
756 | gdm_wimax_event_send(dev, buf, len); | |
757 | return 0; | |
758 | } | |
759 | ||
760 | static void gdm_wimax_netif_rx(struct net_device *dev, char *buf, int len) | |
761 | { | |
762 | struct nic *nic = netdev_priv(dev); | |
763 | struct sk_buff *skb; | |
764 | int ret; | |
765 | ||
766 | #if defined(DEBUG_SDU) | |
767 | dump_eth_packet("RX", buf, len); | |
768 | #endif | |
769 | ||
770 | skb = dev_alloc_skb(len + 2); | |
771 | if (!skb) { | |
772 | printk(KERN_ERR "%s: dev_alloc_skb failed!\n", __func__); | |
773 | return; | |
774 | } | |
775 | skb_reserve(skb, 2); | |
776 | ||
777 | nic->stats.rx_packets++; | |
778 | nic->stats.rx_bytes += len; | |
779 | ||
780 | memcpy(skb_put(skb, len), buf, len); | |
781 | ||
782 | skb->dev = dev; | |
783 | skb->protocol = eth_type_trans(skb, dev); /* what will happen? */ | |
784 | ||
785 | ret = in_interrupt() ? netif_rx(skb) : netif_rx_ni(skb); | |
786 | if (ret == NET_RX_DROP) | |
787 | printk(KERN_ERR "%s skb dropped\n", __func__); | |
788 | } | |
789 | ||
790 | static void gdm_wimax_transmit_aggr_pkt(struct net_device *dev, char *buf, | |
791 | int len) | |
792 | { | |
793 | #define HCI_PADDING_BYTE 4 | |
794 | #define HCI_RESERVED_BYTE 4 | |
795 | struct hci_s *hci; | |
796 | int length; | |
797 | ||
798 | while (len > 0) { | |
799 | hci = (struct hci_s *) buf; | |
800 | ||
801 | if (B2H(hci->cmd_evt) != WIMAX_RX_SDU) { | |
802 | printk(KERN_ERR "Wrong cmd_evt(0x%04X)\n", | |
803 | B2H(hci->cmd_evt)); | |
804 | break; | |
805 | } | |
806 | ||
807 | length = B2H(hci->length); | |
808 | gdm_wimax_netif_rx(dev, hci->data, length); | |
809 | ||
810 | if (length & 0x3) { | |
811 | /* Add padding size */ | |
812 | length += HCI_PADDING_BYTE - (length & 0x3); | |
813 | } | |
814 | ||
815 | length += HCI_HEADER_SIZE + HCI_RESERVED_BYTE; | |
816 | len -= length; | |
817 | buf += length; | |
818 | } | |
819 | } | |
820 | ||
821 | static void gdm_wimax_transmit_pkt(struct net_device *dev, char *buf, int len) | |
822 | { | |
823 | #if defined(CONFIG_WIMAX_GDM72XX_QOS) | |
824 | struct nic *nic = netdev_priv(dev); | |
825 | #endif | |
826 | u16 cmd_evt, cmd_len; | |
827 | ||
828 | /* This code is added for certain rx packet to be ignored. */ | |
829 | if (len == 0) | |
830 | return; | |
831 | ||
832 | cmd_evt = B2H(*(u16 *)&buf[0]); | |
833 | cmd_len = B2H(*(u16 *)&buf[2]); | |
834 | ||
835 | if (len < cmd_len + HCI_HEADER_SIZE) { | |
836 | if (len) | |
837 | printk(KERN_ERR "%s: invalid length [%d/%d]\n", | |
838 | __func__, cmd_len + HCI_HEADER_SIZE, len); | |
839 | return; | |
840 | } | |
841 | ||
842 | switch (cmd_evt) { | |
843 | case WIMAX_RX_SDU_AGGR: | |
844 | gdm_wimax_transmit_aggr_pkt(dev, &buf[HCI_HEADER_SIZE], | |
845 | cmd_len); | |
846 | break; | |
847 | case WIMAX_RX_SDU: | |
848 | gdm_wimax_netif_rx(dev, &buf[HCI_HEADER_SIZE], cmd_len); | |
849 | break; | |
850 | #if defined(CONFIG_WIMAX_GDM72XX_QOS) | |
851 | case WIMAX_EVT_MODEM_REPORT: | |
852 | gdm_recv_qos_hci_packet(nic, buf, len); | |
853 | break; | |
854 | #endif | |
855 | case WIMAX_SDU_TX_FLOW: | |
856 | if (buf[4] == 0) { | |
857 | if (!netif_queue_stopped(dev)) | |
858 | netif_stop_queue(dev); | |
859 | } else if (buf[4] == 1) { | |
860 | if (netif_queue_stopped(dev)) | |
861 | netif_wake_queue(dev); | |
862 | } | |
863 | break; | |
864 | default: | |
865 | gdm_wimax_event_send(dev, buf, len); | |
866 | break; | |
867 | } | |
868 | } | |
869 | ||
870 | static void gdm_wimax_ind_fsm_update(struct net_device *dev, struct fsm_s *fsm) | |
871 | { | |
872 | u16 buf[32 / sizeof(u16)]; | |
873 | u8 *hci_pkt_buf = (u8 *)&buf[0]; | |
874 | ||
875 | /* Indicate updating fsm */ | |
876 | buf[0] = H2B(WIMAX_FSM_UPDATE); | |
877 | buf[1] = H2B(sizeof(struct fsm_s)); | |
878 | memcpy(&hci_pkt_buf[HCI_HEADER_SIZE], fsm, sizeof(struct fsm_s)); | |
879 | ||
880 | gdm_wimax_event_send(dev, hci_pkt_buf, | |
881 | HCI_HEADER_SIZE + sizeof(struct fsm_s)); | |
882 | } | |
883 | ||
884 | static void gdm_wimax_ind_if_updown(struct net_device *dev, int if_up) | |
885 | { | |
886 | u16 buf[32 / sizeof(u16)]; | |
887 | struct hci_s *hci = (struct hci_s *) buf; | |
888 | unsigned char up_down; | |
889 | ||
890 | up_down = if_up ? WIMAX_IF_UP : WIMAX_IF_DOWN; | |
891 | ||
892 | /* Indicate updating fsm */ | |
893 | hci->cmd_evt = H2B(WIMAX_IF_UPDOWN); | |
894 | hci->length = H2B(sizeof(up_down)); | |
895 | hci->data[0] = up_down; | |
896 | ||
897 | gdm_wimax_event_send(dev, (char *)hci, HCI_HEADER_SIZE+sizeof(up_down)); | |
898 | } | |
899 | ||
900 | static void rx_complete(void *arg, void *data, int len) | |
901 | { | |
902 | struct nic *nic = arg; | |
903 | ||
904 | gdm_wimax_transmit_pkt(nic->netdev, data, len); | |
905 | gdm_wimax_rcv_with_cb(nic, rx_complete, nic); | |
906 | } | |
907 | ||
908 | static void prepare_rx_complete(void *arg, void *data, int len) | |
909 | { | |
910 | struct nic *nic = arg; | |
911 | int ret; | |
912 | ||
913 | ret = gdm_wimax_get_prepared_info(nic->netdev, data, len); | |
914 | if (ret == 1) | |
915 | gdm_wimax_rcv_with_cb(nic, rx_complete, nic); | |
916 | else { | |
917 | if (ret < 0) | |
918 | printk(KERN_ERR "get_prepared_info failed(%d)\n", ret); | |
919 | gdm_wimax_rcv_with_cb(nic, prepare_rx_complete, nic); | |
920 | #if 0 | |
921 | /* Re-prepare WiMax device */ | |
922 | gdm_wimax_prepare_device(nic->netdev); | |
923 | #endif | |
924 | } | |
925 | } | |
926 | ||
927 | static void start_rx_proc(struct nic *nic) | |
928 | { | |
929 | gdm_wimax_rcv_with_cb(nic, prepare_rx_complete, nic); | |
930 | } | |
931 | ||
932 | static struct net_device_ops gdm_netdev_ops = { | |
933 | .ndo_open = gdm_wimax_open, | |
934 | .ndo_stop = gdm_wimax_close, | |
935 | .ndo_set_config = gdm_wimax_set_config, | |
936 | .ndo_start_xmit = gdm_wimax_tx, | |
937 | .ndo_get_stats = gdm_wimax_stats, | |
938 | .ndo_set_mac_address = gdm_wimax_set_mac_addr, | |
939 | .ndo_do_ioctl = gdm_wimax_ioctl, | |
940 | }; | |
941 | ||
54bc1ff1 | 942 | int register_wimax_device(struct phy_dev *phy_dev, struct device *pdev) |
247e9cff SA |
943 | { |
944 | struct nic *nic = NULL; | |
945 | struct net_device *dev; | |
946 | int ret; | |
947 | ||
948 | dev = (struct net_device *)alloc_netdev(sizeof(*nic), | |
949 | "wm%d", ether_setup); | |
950 | ||
951 | if (dev == NULL) { | |
952 | printk(KERN_ERR "alloc_etherdev failed\n"); | |
953 | return -ENOMEM; | |
954 | } | |
955 | ||
54bc1ff1 | 956 | SET_NETDEV_DEV(dev, pdev); |
247e9cff SA |
957 | dev->mtu = 1400; |
958 | dev->netdev_ops = &gdm_netdev_ops; | |
959 | dev->flags &= ~IFF_MULTICAST; | |
960 | memcpy(dev->dev_addr, gdm_wimax_macaddr, sizeof(gdm_wimax_macaddr)); | |
961 | ||
962 | nic = netdev_priv(dev); | |
963 | memset(nic, 0, sizeof(*nic)); | |
964 | ||
965 | nic->netdev = dev; | |
966 | nic->phy_dev = phy_dev; | |
967 | phy_dev->netdev = dev; | |
968 | ||
969 | /* event socket init */ | |
970 | ret = gdm_wimax_event_init(); | |
971 | if (ret < 0) { | |
972 | printk(KERN_ERR "Cannot create event.\n"); | |
973 | goto cleanup; | |
974 | } | |
975 | ||
976 | ret = register_netdev(dev); | |
977 | if (ret) | |
978 | goto cleanup; | |
979 | ||
980 | #if defined(LOOPBACK_TEST) | |
981 | netif_start_queue(dev); | |
982 | netif_carrier_on(dev); | |
983 | #else | |
984 | netif_carrier_off(dev); | |
985 | #endif | |
986 | ||
987 | #ifdef CONFIG_WIMAX_GDM72XX_QOS | |
988 | gdm_qos_init(nic); | |
989 | #endif | |
990 | ||
991 | start_rx_proc(nic); | |
992 | ||
993 | /* Prepare WiMax device */ | |
994 | gdm_wimax_prepare_device(dev); | |
995 | ||
996 | return 0; | |
997 | ||
998 | cleanup: | |
999 | printk(KERN_ERR "register_netdev failed\n"); | |
1000 | free_netdev(dev); | |
1001 | return ret; | |
1002 | } | |
1003 | ||
1004 | void unregister_wimax_device(struct phy_dev *phy_dev) | |
1005 | { | |
1006 | struct nic *nic = netdev_priv(phy_dev->netdev); | |
1007 | struct fsm_s *fsm = (struct fsm_s *) nic->sdk_data[SIOC_DATA_FSM].buf; | |
1008 | ||
1009 | if (fsm) | |
1010 | fsm->m_status = M_INIT; | |
1011 | unregister_netdev(nic->netdev); | |
1012 | ||
1013 | gdm_wimax_event_exit(); | |
1014 | ||
1015 | #if defined(CONFIG_WIMAX_GDM72XX_QOS) | |
1016 | gdm_qos_release_list(nic); | |
1017 | #endif | |
1018 | ||
1019 | gdm_wimax_cleanup_ioctl(phy_dev->netdev); | |
1020 | ||
1021 | free_netdev(nic->netdev); | |
1022 | } |