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Staging: rtl8187se: fixed space style issues in r8180_core.c
[net-next-2.6.git] / drivers / staging / rtl8187se / r8180_core.c
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CommitLineData
1/*
2 This is part of rtl818x pci OpenSource driver - v 0.1
3 Copyright (C) Andrea Merello 2004-2005 <andreamrl@tiscali.it>
4 Released under the terms of GPL (General Public License)
5
6 Parts of this driver are based on the GPL part of the official
7 Realtek driver.
8
9 Parts of this driver are based on the rtl8180 driver skeleton
10 from Patric Schenke & Andres Salomon.
11
12 Parts of this driver are based on the Intel Pro Wireless 2100 GPL driver.
13
14 Parts of BB/RF code are derived from David Young rtl8180 netbsd driver.
15
16 RSSI calc function from 'The Deuce'
17
18 Some ideas borrowed from the 8139too.c driver included in linux kernel.
19
20 We (I?) want to thanks the Authors of those projecs and also the
21 Ndiswrapper's project Authors.
22
23 A big big thanks goes also to Realtek corp. for their help in my attempt to
24 add RTL8185 and RTL8225 support, and to David Young also.
25
26 Power management interface routines.
27 Written by Mariusz Matuszek.
28*/
29
30#undef RX_DONT_PASS_UL
31#undef DUMMY_RX
32
33#include <linux/slab.h>
34#include <linux/syscalls.h>
35#include <linux/eeprom_93cx6.h>
36
37#include "r8180_hw.h"
38#include "r8180.h"
39#include "r8180_rtl8225.h" /* RTL8225 Radio frontend */
40#include "r8180_93cx6.h" /* Card EEPROM */
41#include "r8180_wx.h"
42#include "r8180_dm.h"
43
44#include "ieee80211/dot11d.h"
45
46static struct pci_device_id rtl8180_pci_id_tbl[] __devinitdata = {
47 {
48 .vendor = PCI_VENDOR_ID_REALTEK,
49 .device = 0x8199,
50 .subvendor = PCI_ANY_ID,
51 .subdevice = PCI_ANY_ID,
52 .driver_data = 0,
53 },
54 {
55 .vendor = 0,
56 .device = 0,
57 .subvendor = 0,
58 .subdevice = 0,
59 .driver_data = 0,
60 }
61};
62
63
64static char *ifname = "wlan%d";
65static int hwseqnum = 0;
66static int hwwep = 0;
67static int channels = 0x3fff;
68
69#define eqMacAddr(a, b) (((a)[0] == (b)[0] && (a)[1] == (b)[1] && (a)[2] == (b)[2] && (a)[3] == (b)[3] && (a)[4] == (b)[4] && (a)[5] == (b)[5]) ? 1 : 0)
70#define cpMacAddr(des, src) ((des)[0] = (src)[0], (des)[1] = (src)[1], (des)[2] = (src)[2], (des)[3] = (src)[3], (des)[4] = (src)[4], (des)[5] = (src)[5])
71MODULE_LICENSE("GPL");
72MODULE_DEVICE_TABLE(pci, rtl8180_pci_id_tbl);
73MODULE_AUTHOR("Andrea Merello <andreamrl@tiscali.it>");
74MODULE_DESCRIPTION("Linux driver for Realtek RTL8180 / RTL8185 WiFi cards");
75
76
77module_param(ifname, charp, S_IRUGO|S_IWUSR);
78module_param(hwseqnum, int, S_IRUGO|S_IWUSR);
79module_param(hwwep, int, S_IRUGO|S_IWUSR);
80module_param(channels, int, S_IRUGO|S_IWUSR);
81
82MODULE_PARM_DESC(devname, " Net interface name, wlan%d=default");
83MODULE_PARM_DESC(hwseqnum, " Try to use hardware 802.11 header sequence numbers. Zero=default");
84MODULE_PARM_DESC(hwwep, " Try to use hardware WEP support. Still broken and not available on all cards");
85MODULE_PARM_DESC(channels, " Channel bitmask for specific locales. NYI");
86
87
88static int __devinit rtl8180_pci_probe(struct pci_dev *pdev,
89 const struct pci_device_id *id);
90
91static void __devexit rtl8180_pci_remove(struct pci_dev *pdev);
92
93static void rtl8180_shutdown(struct pci_dev *pdev)
94{
95 struct net_device *dev = pci_get_drvdata(pdev);
96 if (dev->netdev_ops->ndo_stop)
97 dev->netdev_ops->ndo_stop(dev);
98 pci_disable_device(pdev);
99}
100
101static int rtl8180_suspend(struct pci_dev *pdev, pm_message_t state)
102{
103 struct net_device *dev = pci_get_drvdata(pdev);
104
105 if (!netif_running(dev))
106 goto out_pci_suspend;
107
108 if (dev->netdev_ops->ndo_stop)
109 dev->netdev_ops->ndo_stop(dev);
110
111 netif_device_detach(dev);
112
113out_pci_suspend:
114 pci_save_state(pdev);
115 pci_disable_device(pdev);
116 pci_set_power_state(pdev, pci_choose_state(pdev, state));
117 return 0;
118}
119
120static int rtl8180_resume(struct pci_dev *pdev)
121{
122 struct net_device *dev = pci_get_drvdata(pdev);
123 int err;
124 u32 val;
125
126 pci_set_power_state(pdev, PCI_D0);
127
128 err = pci_enable_device(pdev);
129 if (err) {
130 printk(KERN_ERR "%s: pci_enable_device failed on resume\n",
131 dev->name);
132
133 return err;
134 }
135
136 pci_restore_state(pdev);
137
138 /*
139 * Suspend/Resume resets the PCI configuration space, so we have to
140 * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
141 * from interfering with C3 CPU state. pci_restore_state won't help
142 * here since it only restores the first 64 bytes pci config header.
143 */
144 pci_read_config_dword(pdev, 0x40, &val);
145 if ((val & 0x0000ff00) != 0)
146 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
147
148 if (!netif_running(dev))
149 goto out;
150
151 if (dev->netdev_ops->ndo_open)
152 dev->netdev_ops->ndo_open(dev);
153
154 netif_device_attach(dev);
155out:
156 return 0;
157}
158
159static struct pci_driver rtl8180_pci_driver = {
160 .name = RTL8180_MODULE_NAME,
161 .id_table = rtl8180_pci_id_tbl,
162 .probe = rtl8180_pci_probe,
163 .remove = __devexit_p(rtl8180_pci_remove),
164 .suspend = rtl8180_suspend,
165 .resume = rtl8180_resume,
166 .shutdown = rtl8180_shutdown,
167};
168
169u8 read_nic_byte(struct net_device *dev, int x)
170{
171 return 0xff&readb((u8 *)dev->mem_start + x);
172}
173
174u32 read_nic_dword(struct net_device *dev, int x)
175{
176 return readl((u8 *)dev->mem_start + x);
177}
178
179u16 read_nic_word(struct net_device *dev, int x)
180{
181 return readw((u8 *)dev->mem_start + x);
182}
183
184void write_nic_byte(struct net_device *dev, int x, u8 y)
185{
186 writeb(y, (u8 *)dev->mem_start + x);
187 udelay(20);
188}
189
190void write_nic_dword(struct net_device *dev, int x, u32 y)
191{
192 writel(y, (u8 *)dev->mem_start + x);
193 udelay(20);
194}
195
196void write_nic_word(struct net_device *dev, int x, u16 y)
197{
198 writew(y, (u8 *)dev->mem_start + x);
199 udelay(20);
200}
201
202inline void force_pci_posting(struct net_device *dev)
203{
204 read_nic_byte(dev, EPROM_CMD);
205 mb();
206}
207
208irqreturn_t rtl8180_interrupt(int irq, void *netdev, struct pt_regs *regs);
209void set_nic_rxring(struct net_device *dev);
210void set_nic_txring(struct net_device *dev);
211static struct net_device_stats *rtl8180_stats(struct net_device *dev);
212void rtl8180_commit(struct net_device *dev);
213void rtl8180_start_tx_beacon(struct net_device *dev);
214
215static struct proc_dir_entry *rtl8180_proc = NULL;
216
217static int proc_get_registers(char *page, char **start,
218 off_t offset, int count,
219 int *eof, void *data)
220{
221 struct net_device *dev = data;
222 int len = 0;
223 int i, n;
224 int max = 0xff;
225
226 /* This dump the current register page */
227 for (n = 0; n <= max;) {
228 len += snprintf(page + len, count - len, "\nD: %2x > ", n);
229
230 for (i = 0; i < 16 && n <= max; i++, n++)
231 len += snprintf(page + len, count - len, "%2x ",
232 read_nic_byte(dev, n));
233 }
234 len += snprintf(page + len, count - len, "\n");
235
236 *eof = 1;
237 return len;
238}
239
240int get_curr_tx_free_desc(struct net_device *dev, int priority);
241
242static int proc_get_stats_hw(char *page, char **start,
243 off_t offset, int count,
244 int *eof, void *data)
245{
246 int len = 0;
247
248 *eof = 1;
249 return len;
250}
251
252static int proc_get_stats_rx(char *page, char **start,
253 off_t offset, int count,
254 int *eof, void *data)
255{
256 struct net_device *dev = data;
257 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
258
259 int len = 0;
260
261 len += snprintf(page + len, count - len,
262 "RX OK: %lu\n"
263 "RX Retry: %lu\n"
264 "RX CRC Error(0-500): %lu\n"
265 "RX CRC Error(500-1000): %lu\n"
266 "RX CRC Error(>1000): %lu\n"
267 "RX ICV Error: %lu\n",
268 priv->stats.rxint,
269 priv->stats.rxerr,
270 priv->stats.rxcrcerrmin,
271 priv->stats.rxcrcerrmid,
272 priv->stats.rxcrcerrmax,
273 priv->stats.rxicverr
274 );
275
276 *eof = 1;
277 return len;
278}
279
280static int proc_get_stats_tx(char *page, char **start,
281 off_t offset, int count,
282 int *eof, void *data)
283{
284 struct net_device *dev = data;
285 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
286
287 int len = 0;
288 unsigned long totalOK;
289
290 totalOK = priv->stats.txnpokint+priv->stats.txhpokint+priv->stats.txlpokint;
291 len += snprintf(page + len, count - len,
292 "TX OK: %lu\n"
293 "TX Error: %lu\n"
294 "TX Retry: %lu\n"
295 "TX beacon OK: %lu\n"
296 "TX beacon error: %lu\n",
297 totalOK,
298 priv->stats.txnperr+priv->stats.txhperr+priv->stats.txlperr,
299 priv->stats.txretry,
300 priv->stats.txbeacon,
301 priv->stats.txbeaconerr
302 );
303
304 *eof = 1;
305 return len;
306}
307
308void rtl8180_proc_module_init(void)
309{
310 DMESG("Initializing proc filesystem");
311 rtl8180_proc = create_proc_entry(RTL8180_MODULE_NAME, S_IFDIR, init_net.proc_net);
312}
313
314void rtl8180_proc_module_remove(void)
315{
316 remove_proc_entry(RTL8180_MODULE_NAME, init_net.proc_net);
317}
318
319void rtl8180_proc_remove_one(struct net_device *dev)
320{
321 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
322 if (priv->dir_dev) {
323 remove_proc_entry("stats-hw", priv->dir_dev);
324 remove_proc_entry("stats-tx", priv->dir_dev);
325 remove_proc_entry("stats-rx", priv->dir_dev);
326 remove_proc_entry("registers", priv->dir_dev);
327 remove_proc_entry(dev->name, rtl8180_proc);
328 priv->dir_dev = NULL;
329 }
330}
331
332void rtl8180_proc_init_one(struct net_device *dev)
333{
334 struct proc_dir_entry *e;
335 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
336
337 priv->dir_dev = rtl8180_proc;
338 if (!priv->dir_dev) {
339 DMESGE("Unable to initialize /proc/net/r8180/%s\n",
340 dev->name);
341 return;
342 }
343
344 e = create_proc_read_entry("stats-hw", S_IFREG | S_IRUGO,
345 priv->dir_dev, proc_get_stats_hw, dev);
346 if (!e) {
347 DMESGE("Unable to initialize "
348 "/proc/net/r8180/%s/stats-hw\n",
349 dev->name);
350 }
351
352 e = create_proc_read_entry("stats-rx", S_IFREG | S_IRUGO,
353 priv->dir_dev, proc_get_stats_rx, dev);
354 if (!e) {
355 DMESGE("Unable to initialize "
356 "/proc/net/r8180/%s/stats-rx\n",
357 dev->name);
358 }
359
360
361 e = create_proc_read_entry("stats-tx", S_IFREG | S_IRUGO,
362 priv->dir_dev, proc_get_stats_tx, dev);
363 if (!e) {
364 DMESGE("Unable to initialize "
365 "/proc/net/r8180/%s/stats-tx\n",
366 dev->name);
367 }
368
369 e = create_proc_read_entry("registers", S_IFREG | S_IRUGO,
370 priv->dir_dev, proc_get_registers, dev);
371 if (!e) {
372 DMESGE("Unable to initialize "
373 "/proc/net/r8180/%s/registers\n",
374 dev->name);
375 }
376}
377
378/*
379 FIXME: check if we can use some standard already-existent
380 data type+functions in kernel
381*/
382
383short buffer_add(struct buffer **buffer, u32 *buf, dma_addr_t dma,
384 struct buffer **bufferhead)
385{
386 struct buffer *tmp;
387
388 if (!*buffer) {
389
390 *buffer = kmalloc(sizeof(struct buffer), GFP_KERNEL);
391
392 if (*buffer == NULL) {
393 DMESGE("Failed to kmalloc head of TX/RX struct");
394 return -1;
395 }
396 (*buffer)->next = *buffer;
397 (*buffer)->buf = buf;
398 (*buffer)->dma = dma;
399 if (bufferhead != NULL)
400 (*bufferhead) = (*buffer);
401 return 0;
402 }
403 tmp = *buffer;
404
405 while (tmp->next != (*buffer))
406 tmp = tmp->next;
407 tmp->next = kmalloc(sizeof(struct buffer), GFP_KERNEL);
408 if (tmp->next == NULL) {
409 DMESGE("Failed to kmalloc TX/RX struct");
410 return -1;
411 }
412 tmp->next->buf = buf;
413 tmp->next->dma = dma;
414 tmp->next->next = *buffer;
415
416 return 0;
417}
418
419void buffer_free(struct net_device *dev, struct buffer **buffer, int len, short consistent)
420{
421
422 struct buffer *tmp, *next;
423 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
424 struct pci_dev *pdev = priv->pdev;
425
426 if (!*buffer)
427 return;
428
429 tmp = *buffer;
430
431 do {
432 next = tmp->next;
433 if (consistent) {
434 pci_free_consistent(pdev, len,
435 tmp->buf, tmp->dma);
436 } else {
437 pci_unmap_single(pdev, tmp->dma,
438 len, PCI_DMA_FROMDEVICE);
439 kfree(tmp->buf);
440 }
441 kfree(tmp);
442 tmp = next;
443 }
444 while (next != *buffer);
445
446 *buffer = NULL;
447}
448
449void print_buffer(u32 *buffer, int len)
450{
451 int i;
452 u8 *buf = (u8 *)buffer;
453
454 printk("ASCII BUFFER DUMP (len: %x):\n", len);
455
456 for (i = 0; i < len; i++)
457 printk("%c", buf[i]);
458
459 printk("\nBINARY BUFFER DUMP (len: %x):\n", len);
460
461 for (i = 0; i < len; i++)
462 printk("%02x", buf[i]);
463
464 printk("\n");
465}
466
467int get_curr_tx_free_desc(struct net_device *dev, int priority)
468{
469 struct r8180_priv *priv = ieee80211_priv(dev);
470 u32 *tail;
471 u32 *head;
472 int ret;
473
474 switch (priority) {
475 case MANAGE_PRIORITY:
476 head = priv->txmapringhead;
477 tail = priv->txmapringtail;
478 break;
479 case BK_PRIORITY:
480 head = priv->txbkpringhead;
481 tail = priv->txbkpringtail;
482 break;
483 case BE_PRIORITY:
484 head = priv->txbepringhead;
485 tail = priv->txbepringtail;
486 break;
487 case VI_PRIORITY:
488 head = priv->txvipringhead;
489 tail = priv->txvipringtail;
490 break;
491 case VO_PRIORITY:
492 head = priv->txvopringhead;
493 tail = priv->txvopringtail;
494 break;
495 case HI_PRIORITY:
496 head = priv->txhpringhead;
497 tail = priv->txhpringtail;
498 break;
499 default:
500 return -1;
501 }
502
503 if (head <= tail)
504 ret = priv->txringcount - (tail - head)/8;
505 else
506 ret = (head - tail)/8;
507
508 if (ret > priv->txringcount)
509 DMESG("BUG");
510
511 return ret;
512}
513
514short check_nic_enought_desc(struct net_device *dev, int priority)
515{
516 struct r8180_priv *priv = ieee80211_priv(dev);
517 struct ieee80211_device *ieee = netdev_priv(dev);
518 int requiredbyte, required;
519
520 requiredbyte = priv->ieee80211->fts + sizeof(struct ieee80211_header_data);
521
522 if (ieee->current_network.QoS_Enable)
523 requiredbyte += 2;
524
525 required = requiredbyte / (priv->txbuffsize-4);
526
527 if (requiredbyte % priv->txbuffsize)
528 required++;
529
530 /* for now we keep two free descriptor as a safety boundary
531 * between the tail and the head
532 */
533
534 return (required+2 < get_curr_tx_free_desc(dev, priority));
535}
536
537void fix_tx_fifo(struct net_device *dev)
538{
539 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
540 u32 *tmp;
541 int i;
542
543 for (tmp = priv->txmapring, i = 0;
544 i < priv->txringcount;
545 tmp += 8, i++) {
546 *tmp = *tmp & ~(1<<31);
547 }
548
549 for (tmp = priv->txbkpring, i = 0;
550 i < priv->txringcount;
551 tmp += 8, i++) {
552 *tmp = *tmp & ~(1<<31);
553 }
554
555 for (tmp = priv->txbepring, i = 0;
556 i < priv->txringcount;
557 tmp += 8, i++) {
558 *tmp = *tmp & ~(1<<31);
559 }
560 for (tmp = priv->txvipring, i = 0;
561 i < priv->txringcount;
562 tmp += 8, i++) {
563 *tmp = *tmp & ~(1<<31);
564 }
565
566 for (tmp = priv->txvopring, i = 0;
567 i < priv->txringcount;
568 tmp += 8, i++) {
569 *tmp = *tmp & ~(1<<31);
570 }
571
572 for (tmp = priv->txhpring, i = 0;
573 i < priv->txringcount;
574 tmp += 8, i++) {
575 *tmp = *tmp & ~(1<<31);
576 }
577
578 for (tmp = priv->txbeaconring, i = 0;
579 i < priv->txbeaconcount;
580 tmp += 8, i++) {
581 *tmp = *tmp & ~(1<<31);
582 }
583
584 priv->txmapringtail = priv->txmapring;
585 priv->txmapringhead = priv->txmapring;
586 priv->txmapbufstail = priv->txmapbufs;
587
588 priv->txbkpringtail = priv->txbkpring;
589 priv->txbkpringhead = priv->txbkpring;
590 priv->txbkpbufstail = priv->txbkpbufs;
591
592 priv->txbepringtail = priv->txbepring;
593 priv->txbepringhead = priv->txbepring;
594 priv->txbepbufstail = priv->txbepbufs;
595
596 priv->txvipringtail = priv->txvipring;
597 priv->txvipringhead = priv->txvipring;
598 priv->txvipbufstail = priv->txvipbufs;
599
600 priv->txvopringtail = priv->txvopring;
601 priv->txvopringhead = priv->txvopring;
602 priv->txvopbufstail = priv->txvopbufs;
603
604 priv->txhpringtail = priv->txhpring;
605 priv->txhpringhead = priv->txhpring;
606 priv->txhpbufstail = priv->txhpbufs;
607
608 priv->txbeaconringtail = priv->txbeaconring;
609 priv->txbeaconbufstail = priv->txbeaconbufs;
610 set_nic_txring(dev);
611
612 ieee80211_reset_queue(priv->ieee80211);
613 priv->ack_tx_to_ieee = 0;
614}
615
616void fix_rx_fifo(struct net_device *dev)
617{
618 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
619 u32 *tmp;
620 struct buffer *rxbuf;
621 u8 rx_desc_size;
622
623 rx_desc_size = 8; // 4*8 = 32 bytes
624
625 for (tmp = priv->rxring, rxbuf = priv->rxbufferhead;
626 (tmp < (priv->rxring)+(priv->rxringcount)*rx_desc_size);
627 tmp += rx_desc_size, rxbuf = rxbuf->next) {
628 *(tmp+2) = rxbuf->dma;
629 *tmp = *tmp & ~0xfff;
630 *tmp = *tmp | priv->rxbuffersize;
631 *tmp |= (1<<31);
632 }
633
634 priv->rxringtail = priv->rxring;
635 priv->rxbuffer = priv->rxbufferhead;
636 priv->rx_skb_complete = 1;
637 set_nic_rxring(dev);
638}
639
640unsigned char QUALITY_MAP[] = {
641 0x64, 0x64, 0x64, 0x63, 0x63, 0x62, 0x62, 0x61,
642 0x61, 0x60, 0x60, 0x5f, 0x5f, 0x5e, 0x5d, 0x5c,
643 0x5b, 0x5a, 0x59, 0x57, 0x56, 0x54, 0x52, 0x4f,
644 0x4c, 0x49, 0x45, 0x41, 0x3c, 0x37, 0x31, 0x29,
645 0x24, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22,
646 0x22, 0x22, 0x21, 0x21, 0x21, 0x21, 0x21, 0x20,
647 0x20, 0x20, 0x20, 0x1f, 0x1f, 0x1e, 0x1e, 0x1e,
648 0x1d, 0x1d, 0x1c, 0x1c, 0x1b, 0x1a, 0x19, 0x19,
649 0x18, 0x17, 0x16, 0x15, 0x14, 0x12, 0x11, 0x0f,
650 0x0e, 0x0c, 0x0a, 0x08, 0x06, 0x04, 0x01, 0x00
651};
652
653unsigned char STRENGTH_MAP[] = {
654 0x64, 0x64, 0x63, 0x62, 0x61, 0x60, 0x5f, 0x5e,
655 0x5d, 0x5c, 0x5b, 0x5a, 0x57, 0x54, 0x52, 0x50,
656 0x4e, 0x4c, 0x4a, 0x48, 0x46, 0x44, 0x41, 0x3f,
657 0x3c, 0x3a, 0x37, 0x36, 0x36, 0x1c, 0x1c, 0x1b,
658 0x1b, 0x1a, 0x1a, 0x19, 0x19, 0x18, 0x18, 0x17,
659 0x17, 0x16, 0x16, 0x15, 0x15, 0x14, 0x14, 0x13,
660 0x13, 0x12, 0x12, 0x11, 0x11, 0x10, 0x10, 0x0f,
661 0x0f, 0x0e, 0x0e, 0x0d, 0x0d, 0x0c, 0x0c, 0x0b,
662 0x0b, 0x0a, 0x0a, 0x09, 0x09, 0x08, 0x08, 0x07,
663 0x07, 0x06, 0x06, 0x05, 0x04, 0x03, 0x02, 0x00
664};
665
666void rtl8180_RSSI_calc(struct net_device *dev, u8 *rssi, u8 *qual)
667{
668 u32 temp;
669 u32 temp2;
670 u32 q;
671 u32 orig_qual;
672 u8 _rssi;
673
674 q = *qual;
675 orig_qual = *qual;
676 _rssi = 0; // avoid gcc complains..
677
678 if (q <= 0x4e) {
679 temp = QUALITY_MAP[q];
680 } else {
681 if (q & 0x80)
682 temp = 0x32;
683 else
684 temp = 1;
685 }
686
687 *qual = temp;
688 temp2 = *rssi;
689
690 if (_rssi < 0x64) {
691 if (_rssi == 0)
692 *rssi = 1;
693 } else {
694 *rssi = 0x64;
695 }
696
697 return;
698}
699
700void rtl8180_irq_enable(struct net_device *dev)
701{
702 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
703
704 priv->irq_enabled = 1;
705 write_nic_word(dev, INTA_MASK, priv->irq_mask);
706}
707
708void rtl8180_irq_disable(struct net_device *dev)
709{
710 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
711
712 write_nic_dword(dev, IMR, 0);
713 force_pci_posting(dev);
714 priv->irq_enabled = 0;
715}
716
717void rtl8180_set_mode(struct net_device *dev, int mode)
718{
719 u8 ecmd;
720
721 ecmd = read_nic_byte(dev, EPROM_CMD);
722 ecmd = ecmd & ~EPROM_CMD_OPERATING_MODE_MASK;
723 ecmd = ecmd | (mode<<EPROM_CMD_OPERATING_MODE_SHIFT);
724 ecmd = ecmd & ~(1<<EPROM_CS_SHIFT);
725 ecmd = ecmd & ~(1<<EPROM_CK_SHIFT);
726 write_nic_byte(dev, EPROM_CMD, ecmd);
727}
728
729void rtl8180_adapter_start(struct net_device *dev);
730void rtl8180_beacon_tx_enable(struct net_device *dev);
731
732void rtl8180_update_msr(struct net_device *dev)
733{
734 struct r8180_priv *priv = ieee80211_priv(dev);
735 u8 msr;
736 u32 rxconf;
737
738 msr = read_nic_byte(dev, MSR);
739 msr &= ~MSR_LINK_MASK;
740
741 rxconf = read_nic_dword(dev, RX_CONF);
742
743 if (priv->ieee80211->state == IEEE80211_LINKED) {
744 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
745 msr |= (MSR_LINK_ADHOC<<MSR_LINK_SHIFT);
746 else if (priv->ieee80211->iw_mode == IW_MODE_MASTER)
747 msr |= (MSR_LINK_MASTER<<MSR_LINK_SHIFT);
748 else if (priv->ieee80211->iw_mode == IW_MODE_INFRA)
749 msr |= (MSR_LINK_MANAGED<<MSR_LINK_SHIFT);
750 else
751 msr |= (MSR_LINK_NONE<<MSR_LINK_SHIFT);
752 rxconf |= (1<<RX_CHECK_BSSID_SHIFT);
753
754 } else {
755 msr |= (MSR_LINK_NONE<<MSR_LINK_SHIFT);
756 rxconf &= ~(1<<RX_CHECK_BSSID_SHIFT);
757 }
758
759 write_nic_byte(dev, MSR, msr);
760 write_nic_dword(dev, RX_CONF, rxconf);
761}
762
763void rtl8180_set_chan(struct net_device *dev, short ch)
764{
765 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
766
767 if ((ch > 14) || (ch < 1)) {
768 printk("In %s: Invalid chnanel %d\n", __func__, ch);
769 return;
770 }
771
772 priv->chan = ch;
773 priv->rf_set_chan(dev, priv->chan);
774}
775
776void rtl8180_rx_enable(struct net_device *dev)
777{
778 u8 cmd;
779 u32 rxconf;
780 /* for now we accept data, management & ctl frame*/
781 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
782
783 rxconf = read_nic_dword(dev, RX_CONF);
784 rxconf = rxconf & ~MAC_FILTER_MASK;
785 rxconf = rxconf | (1<<ACCEPT_MNG_FRAME_SHIFT);
786 rxconf = rxconf | (1<<ACCEPT_DATA_FRAME_SHIFT);
787 rxconf = rxconf | (1<<ACCEPT_BCAST_FRAME_SHIFT);
788 rxconf = rxconf | (1<<ACCEPT_MCAST_FRAME_SHIFT);
789 if (dev->flags & IFF_PROMISC)
790 DMESG("NIC in promisc mode");
791
792 if (priv->ieee80211->iw_mode == IW_MODE_MONITOR || \
793 dev->flags & IFF_PROMISC) {
794 rxconf = rxconf | (1<<ACCEPT_ALLMAC_FRAME_SHIFT);
795 } else {
796 rxconf = rxconf | (1<<ACCEPT_NICMAC_FRAME_SHIFT);
797 }
798
799 if (priv->ieee80211->iw_mode == IW_MODE_MONITOR) {
800 rxconf = rxconf | (1<<ACCEPT_CTL_FRAME_SHIFT);
801 rxconf = rxconf | (1<<ACCEPT_ICVERR_FRAME_SHIFT);
802 rxconf = rxconf | (1<<ACCEPT_PWR_FRAME_SHIFT);
803 }
804
805 if (priv->crcmon == 1 && priv->ieee80211->iw_mode == IW_MODE_MONITOR)
806 rxconf = rxconf | (1<<ACCEPT_CRCERR_FRAME_SHIFT);
807
808 rxconf = rxconf & ~RX_FIFO_THRESHOLD_MASK;
809 rxconf = rxconf | (RX_FIFO_THRESHOLD_NONE << RX_FIFO_THRESHOLD_SHIFT);
810
811 rxconf = rxconf | (1<<RX_AUTORESETPHY_SHIFT);
812 rxconf = rxconf & ~MAX_RX_DMA_MASK;
813 rxconf = rxconf | (MAX_RX_DMA_2048<<MAX_RX_DMA_SHIFT);
814
815 rxconf = rxconf | RCR_ONLYERLPKT;
816
817 rxconf = rxconf & ~RCR_CS_MASK;
818
819 write_nic_dword(dev, RX_CONF, rxconf);
820
821 fix_rx_fifo(dev);
822
823 cmd = read_nic_byte(dev, CMD);
824 write_nic_byte(dev, CMD, cmd | (1<<CMD_RX_ENABLE_SHIFT));
825}
826
827void set_nic_txring(struct net_device *dev)
828{
829 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
830
831 write_nic_dword(dev, TX_MANAGEPRIORITY_RING_ADDR, priv->txmapringdma);
832 write_nic_dword(dev, TX_BKPRIORITY_RING_ADDR, priv->txbkpringdma);
833 write_nic_dword(dev, TX_BEPRIORITY_RING_ADDR, priv->txbepringdma);
834 write_nic_dword(dev, TX_VIPRIORITY_RING_ADDR, priv->txvipringdma);
835 write_nic_dword(dev, TX_VOPRIORITY_RING_ADDR, priv->txvopringdma);
836 write_nic_dword(dev, TX_HIGHPRIORITY_RING_ADDR, priv->txhpringdma);
837 write_nic_dword(dev, TX_BEACON_RING_ADDR, priv->txbeaconringdma);
838}
839
840void rtl8180_conttx_enable(struct net_device *dev)
841{
842 u32 txconf;
843
844 txconf = read_nic_dword(dev, TX_CONF);
845 txconf = txconf & ~TX_LOOPBACK_MASK;
846 txconf = txconf | (TX_LOOPBACK_CONTINUE<<TX_LOOPBACK_SHIFT);
847 write_nic_dword(dev, TX_CONF, txconf);
848}
849
850void rtl8180_conttx_disable(struct net_device *dev)
851{
852 u32 txconf;
853
854 txconf = read_nic_dword(dev, TX_CONF);
855 txconf = txconf & ~TX_LOOPBACK_MASK;
856 txconf = txconf | (TX_LOOPBACK_NONE<<TX_LOOPBACK_SHIFT);
857 write_nic_dword(dev, TX_CONF, txconf);
858}
859
860void rtl8180_tx_enable(struct net_device *dev)
861{
862 u8 cmd;
863 u8 tx_agc_ctl;
864 u8 byte;
865 u32 txconf;
866 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
867
868 txconf = read_nic_dword(dev, TX_CONF);
869
870 byte = read_nic_byte(dev, CW_CONF);
871 byte &= ~(1<<CW_CONF_PERPACKET_CW_SHIFT);
872 byte &= ~(1<<CW_CONF_PERPACKET_RETRY_SHIFT);
873 write_nic_byte(dev, CW_CONF, byte);
874
875 tx_agc_ctl = read_nic_byte(dev, TX_AGC_CTL);
876 tx_agc_ctl &= ~(1<<TX_AGC_CTL_PERPACKET_GAIN_SHIFT);
877 tx_agc_ctl &= ~(1<<TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT);
878 tx_agc_ctl |= (1<<TX_AGC_CTL_FEEDBACK_ANT);
879 write_nic_byte(dev, TX_AGC_CTL, tx_agc_ctl);
880 write_nic_byte(dev, 0xec, 0x3f); /* Disable early TX */
881
882 txconf = txconf & ~(1<<TCR_PROBE_NOTIMESTAMP_SHIFT);
883
884 txconf = txconf & ~TX_LOOPBACK_MASK;
885 txconf = txconf | (TX_LOOPBACK_NONE<<TX_LOOPBACK_SHIFT);
886 txconf = txconf & ~TCR_DPRETRY_MASK;
887 txconf = txconf & ~TCR_RTSRETRY_MASK;
888 txconf = txconf | (priv->retry_data<<TX_DPRETRY_SHIFT);
889 txconf = txconf | (priv->retry_rts<<TX_RTSRETRY_SHIFT);
890 txconf = txconf & ~(1<<TX_NOCRC_SHIFT);
891
892 if (priv->hw_plcp_len)
893 txconf = txconf & ~TCR_PLCP_LEN;
894 else
895 txconf = txconf | TCR_PLCP_LEN;
896
897 txconf = txconf & ~TCR_MXDMA_MASK;
898 txconf = txconf | (TCR_MXDMA_2048<<TCR_MXDMA_SHIFT);
899 txconf = txconf | TCR_CWMIN;
900 txconf = txconf | TCR_DISCW;
901
902 txconf = txconf | (1 << TX_NOICV_SHIFT);
903
904 write_nic_dword(dev, TX_CONF, txconf);
905
906 fix_tx_fifo(dev);
907
908 cmd = read_nic_byte(dev, CMD);
909 write_nic_byte(dev, CMD, cmd | (1<<CMD_TX_ENABLE_SHIFT));
910
911 write_nic_dword(dev, TX_CONF, txconf);
912}
913
914void rtl8180_beacon_tx_enable(struct net_device *dev)
915{
916 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
917
918 rtl8180_set_mode(dev, EPROM_CMD_CONFIG);
919 priv->dma_poll_stop_mask &= ~(TPPOLLSTOP_BQ);
920 write_nic_byte(dev, TPPollStop, priv->dma_poll_mask);
921 rtl8180_set_mode(dev, EPROM_CMD_NORMAL);
922}
923
924void rtl8180_beacon_tx_disable(struct net_device *dev)
925{
926 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
927
928 rtl8180_set_mode(dev, EPROM_CMD_CONFIG);
929 priv->dma_poll_stop_mask |= TPPOLLSTOP_BQ;
930 write_nic_byte(dev, TPPollStop, priv->dma_poll_stop_mask);
931 rtl8180_set_mode(dev, EPROM_CMD_NORMAL);
932
933}
934
935void rtl8180_rtx_disable(struct net_device *dev)
936{
937 u8 cmd;
938 struct r8180_priv *priv = ieee80211_priv(dev);
939
940 cmd = read_nic_byte(dev, CMD);
941 write_nic_byte(dev, CMD, cmd & ~\
942 ((1<<CMD_RX_ENABLE_SHIFT)|(1<<CMD_TX_ENABLE_SHIFT)));
943 force_pci_posting(dev);
944 mdelay(10);
945
946 if (!priv->rx_skb_complete)
947 dev_kfree_skb_any(priv->rx_skb);
948}
949
950short alloc_tx_desc_ring(struct net_device *dev, int bufsize, int count,
951 int addr)
952{
953 int i;
954 u32 *desc;
955 u32 *tmp;
956 dma_addr_t dma_desc, dma_tmp;
957 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
958 struct pci_dev *pdev = priv->pdev;
959 void *buf;
960
961 if ((bufsize & 0xfff) != bufsize) {
962 DMESGE("TX buffer allocation too large");
963 return 0;
964 }
965 desc = (u32 *)pci_alloc_consistent(pdev,
966 sizeof(u32)*8*count+256, &dma_desc);
967 if (desc == NULL)
968 return -1;
969
970 if (dma_desc & 0xff)
971 /*
972 * descriptor's buffer must be 256 byte aligned
973 * we shouldn't be here, since we set DMA mask !
974 */
975 WARN(1, "DMA buffer is not aligned\n");
976
977 tmp = desc;
978
979 for (i = 0; i < count; i++) {
980 buf = (void *)pci_alloc_consistent(pdev, bufsize, &dma_tmp);
981 if (buf == NULL)
982 return -ENOMEM;
983
984 switch (addr) {
985 case TX_MANAGEPRIORITY_RING_ADDR:
986 if (-1 == buffer_add(&(priv->txmapbufs), buf, dma_tmp, NULL)) {
987 DMESGE("Unable to allocate mem for buffer NP");
988 return -ENOMEM;
989 }
990 break;
991 case TX_BKPRIORITY_RING_ADDR:
992 if (-1 == buffer_add(&(priv->txbkpbufs), buf, dma_tmp, NULL)) {
993 DMESGE("Unable to allocate mem for buffer LP");
994 return -ENOMEM;
995 }
996 break;
997 case TX_BEPRIORITY_RING_ADDR:
998 if (-1 == buffer_add(&(priv->txbepbufs), buf, dma_tmp, NULL)) {
999 DMESGE("Unable to allocate mem for buffer NP");
1000 return -ENOMEM;
1001 }
1002 break;
1003 case TX_VIPRIORITY_RING_ADDR:
1004 if (-1 == buffer_add(&(priv->txvipbufs), buf, dma_tmp, NULL)) {
1005 DMESGE("Unable to allocate mem for buffer LP");
1006 return -ENOMEM;
1007 }
1008 break;
1009 case TX_VOPRIORITY_RING_ADDR:
1010 if (-1 == buffer_add(&(priv->txvopbufs), buf, dma_tmp, NULL)) {
1011 DMESGE("Unable to allocate mem for buffer NP");
1012 return -ENOMEM;
1013 }
1014 break;
1015 case TX_HIGHPRIORITY_RING_ADDR:
1016 if (-1 == buffer_add(&(priv->txhpbufs), buf, dma_tmp, NULL)) {
1017 DMESGE("Unable to allocate mem for buffer HP");
1018 return -ENOMEM;
1019 }
1020 break;
1021 case TX_BEACON_RING_ADDR:
1022 if (-1 == buffer_add(&(priv->txbeaconbufs), buf, dma_tmp, NULL)) {
1023 DMESGE("Unable to allocate mem for buffer BP");
1024 return -ENOMEM;
1025 }
1026 break;
1027 }
1028 *tmp = *tmp & ~(1<<31); // descriptor empty, owned by the drv
1029 *(tmp+2) = (u32)dma_tmp;
1030 *(tmp+3) = bufsize;
1031
1032 if (i+1 < count)
1033 *(tmp+4) = (u32)dma_desc+((i+1)*8*4);
1034 else
1035 *(tmp+4) = (u32)dma_desc;
1036
1037 tmp = tmp+8;
1038 }
1039
1040 switch (addr) {
1041 case TX_MANAGEPRIORITY_RING_ADDR:
1042 priv->txmapringdma = dma_desc;
1043 priv->txmapring = desc;
1044 break;
1045 case TX_BKPRIORITY_RING_ADDR:
1046 priv->txbkpringdma = dma_desc;
1047 priv->txbkpring = desc;
1048 break;
1049 case TX_BEPRIORITY_RING_ADDR:
1050 priv->txbepringdma = dma_desc;
1051 priv->txbepring = desc;
1052 break;
1053 case TX_VIPRIORITY_RING_ADDR:
1054 priv->txvipringdma = dma_desc;
1055 priv->txvipring = desc;
1056 break;
1057 case TX_VOPRIORITY_RING_ADDR:
1058 priv->txvopringdma = dma_desc;
1059 priv->txvopring = desc;
1060 break;
1061 case TX_HIGHPRIORITY_RING_ADDR:
1062 priv->txhpringdma = dma_desc;
1063 priv->txhpring = desc;
1064 break;
1065 case TX_BEACON_RING_ADDR:
1066 priv->txbeaconringdma = dma_desc;
1067 priv->txbeaconring = desc;
1068 break;
1069
1070 }
1071
1072 return 0;
1073}
1074
1075void free_tx_desc_rings(struct net_device *dev)
1076{
1077 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
1078 struct pci_dev *pdev = priv->pdev;
1079 int count = priv->txringcount;
1080
1081 pci_free_consistent(pdev, sizeof(u32)*8*count+256,
1082 priv->txmapring, priv->txmapringdma);
1083 buffer_free(dev, &(priv->txmapbufs), priv->txbuffsize, 1);
1084
1085 pci_free_consistent(pdev, sizeof(u32)*8*count+256,
1086 priv->txbkpring, priv->txbkpringdma);
1087 buffer_free(dev, &(priv->txbkpbufs), priv->txbuffsize, 1);
1088
1089 pci_free_consistent(pdev, sizeof(u32)*8*count+256,
1090 priv->txbepring, priv->txbepringdma);
1091 buffer_free(dev, &(priv->txbepbufs), priv->txbuffsize, 1);
1092
1093 pci_free_consistent(pdev, sizeof(u32)*8*count+256,
1094 priv->txvipring, priv->txvipringdma);
1095 buffer_free(dev, &(priv->txvipbufs), priv->txbuffsize, 1);
1096
1097 pci_free_consistent(pdev, sizeof(u32)*8*count+256,
1098 priv->txvopring, priv->txvopringdma);
1099 buffer_free(dev, &(priv->txvopbufs), priv->txbuffsize, 1);
1100
1101 pci_free_consistent(pdev, sizeof(u32)*8*count+256,
1102 priv->txhpring, priv->txhpringdma);
1103 buffer_free(dev, &(priv->txhpbufs), priv->txbuffsize, 1);
1104
1105 count = priv->txbeaconcount;
1106 pci_free_consistent(pdev, sizeof(u32)*8*count+256,
1107 priv->txbeaconring, priv->txbeaconringdma);
1108 buffer_free(dev, &(priv->txbeaconbufs), priv->txbuffsize, 1);
1109}
1110
1111void free_rx_desc_ring(struct net_device *dev)
1112{
1113 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
1114 struct pci_dev *pdev = priv->pdev;
1115 int count = priv->rxringcount;
1116
1117 pci_free_consistent(pdev, sizeof(u32)*8*count+256,
1118 priv->rxring, priv->rxringdma);
1119
1120 buffer_free(dev, &(priv->rxbuffer), priv->rxbuffersize, 0);
1121}
1122
1123short alloc_rx_desc_ring(struct net_device *dev, u16 bufsize, int count)
1124{
1125 int i;
1126 u32 *desc;
1127 u32 *tmp;
1128 dma_addr_t dma_desc, dma_tmp;
1129 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
1130 struct pci_dev *pdev = priv->pdev;
1131 void *buf;
1132 u8 rx_desc_size;
1133
1134 rx_desc_size = 8; // 4*8 = 32 bytes
1135
1136 if ((bufsize & 0xfff) != bufsize) {
1137 DMESGE("RX buffer allocation too large");
1138 return -1;
1139 }
1140
1141 desc = (u32 *)pci_alloc_consistent(pdev, sizeof(u32)*rx_desc_size*count+256,
1142 &dma_desc);
1143
1144 if (dma_desc & 0xff)
1145 /*
1146 * descriptor's buffer must be 256 byte aligned
1147 * should never happen since we specify the DMA mask
1148 */
1149 WARN(1, "DMA buffer is not aligned\n");
1150
1151 priv->rxring = desc;
1152 priv->rxringdma = dma_desc;
1153 tmp = desc;
1154
1155 for (i = 0; i < count; i++) {
1156 buf = kmalloc(bufsize * sizeof(u8), GFP_ATOMIC);
1157 if (buf == NULL) {
1158 DMESGE("Failed to kmalloc RX buffer");
1159 return -1;
1160 }
1161
1162 dma_tmp = pci_map_single(pdev, buf, bufsize * sizeof(u8),
1163 PCI_DMA_FROMDEVICE);
1164
1165 if (-1 == buffer_add(&(priv->rxbuffer), buf, dma_tmp,
1166 &(priv->rxbufferhead))) {
1167 DMESGE("Unable to allocate mem RX buf");
1168 return -1;
1169 }
1170 *tmp = 0; // zero pads the header of the descriptor
1171 *tmp = *tmp | (bufsize&0xfff);
1172 *(tmp+2) = (u32)dma_tmp;
1173 *tmp = *tmp | (1<<31); // descriptor void, owned by the NIC
1174
1175 tmp = tmp+rx_desc_size;
1176 }
1177
1178 *(tmp-rx_desc_size) = *(tmp-rx_desc_size) | (1<<30); // this is the last descriptor
1179
1180 return 0;
1181}
1182
1183
1184void set_nic_rxring(struct net_device *dev)
1185{
1186 u8 pgreg;
1187 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
1188
1189 pgreg = read_nic_byte(dev, PGSELECT);
1190 write_nic_byte(dev, PGSELECT, pgreg & ~(1<<PGSELECT_PG_SHIFT));
1191
1192 write_nic_dword(dev, RXRING_ADDR, priv->rxringdma);
1193}
1194
1195void rtl8180_reset(struct net_device *dev)
1196{
1197 u8 cr;
1198
1199 rtl8180_irq_disable(dev);
1200
1201 cr = read_nic_byte(dev, CMD);
1202 cr = cr & 2;
1203 cr = cr | (1<<CMD_RST_SHIFT);
1204 write_nic_byte(dev, CMD, cr);
1205
1206 force_pci_posting(dev);
1207
1208 mdelay(200);
1209
1210 if (read_nic_byte(dev, CMD) & (1<<CMD_RST_SHIFT))
1211 DMESGW("Card reset timeout!");
1212 else
1213 DMESG("Card successfully reset");
1214
1215 rtl8180_set_mode(dev, EPROM_CMD_LOAD);
1216 force_pci_posting(dev);
1217 mdelay(200);
1218}
1219
1220inline u16 ieeerate2rtlrate(int rate)
1221{
1222 switch (rate) {
1223 case 10:
1224 return 0;
1225 case 20:
1226 return 1;
1227 case 55:
1228 return 2;
1229 case 110:
1230 return 3;
1231 case 60:
1232 return 4;
1233 case 90:
1234 return 5;
1235 case 120:
1236 return 6;
1237 case 180:
1238 return 7;
1239 case 240:
1240 return 8;
1241 case 360:
1242 return 9;
1243 case 480:
1244 return 10;
1245 case 540:
1246 return 11;
1247 default:
1248 return 3;
1249 }
1250}
1251
1252static u16 rtl_rate[] = {10, 20, 55, 110, 60, 90, 120, 180, 240, 360, 480, 540, 720};
1253
1254inline u16 rtl8180_rate2rate(short rate)
1255{
1256 if (rate > 12)
1257 return 10;
1258 return rtl_rate[rate];
1259}
1260
1261inline u8 rtl8180_IsWirelessBMode(u16 rate)
1262{
1263 if (((rate <= 110) && (rate != 60) && (rate != 90)) || (rate == 220))
1264 return 1;
1265 else
1266 return 0;
1267}
1268
1269u16 N_DBPSOfRate(u16 DataRate);
1270
1271u16 ComputeTxTime(u16 FrameLength, u16 DataRate, u8 bManagementFrame,
1272 u8 bShortPreamble)
1273{
1274 u16 FrameTime;
1275 u16 N_DBPS;
1276 u16 Ceiling;
1277
1278 if (rtl8180_IsWirelessBMode(DataRate)) {
1279 if (bManagementFrame || !bShortPreamble || DataRate == 10)
1280 /* long preamble */
1281 FrameTime = (u16)(144+48+(FrameLength*8/(DataRate/10)));
1282 else
1283 /* short preamble */
1284 FrameTime = (u16)(72+24+(FrameLength*8/(DataRate/10)));
1285
1286 if ((FrameLength*8 % (DataRate/10)) != 0) /* get the ceilling */
1287 FrameTime++;
1288 } else { /* 802.11g DSSS-OFDM PLCP length field calculation. */
1289 N_DBPS = N_DBPSOfRate(DataRate);
1290 Ceiling = (16 + 8*FrameLength + 6) / N_DBPS
1291 + (((16 + 8*FrameLength + 6) % N_DBPS) ? 1 : 0);
1292 FrameTime = (u16)(16 + 4 + 4*Ceiling + 6);
1293 }
1294 return FrameTime;
1295}
1296
1297u16 N_DBPSOfRate(u16 DataRate)
1298{
1299 u16 N_DBPS = 24;
1300
1301 switch (DataRate) {
1302 case 60:
1303 N_DBPS = 24;
1304 break;
1305 case 90:
1306 N_DBPS = 36;
1307 break;
1308 case 120:
1309 N_DBPS = 48;
1310 break;
1311 case 180:
1312 N_DBPS = 72;
1313 break;
1314 case 240:
1315 N_DBPS = 96;
1316 break;
1317 case 360:
1318 N_DBPS = 144;
1319 break;
1320 case 480:
1321 N_DBPS = 192;
1322 break;
1323 case 540:
1324 N_DBPS = 216;
1325 break;
1326 default:
1327 break;
1328 }
1329
1330 return N_DBPS;
1331}
1332
1333//
1334// Description:
1335// For Netgear case, they want good-looking singal strength.
1336//
1337long NetgearSignalStrengthTranslate(long LastSS, long CurrSS)
1338{
1339 long RetSS;
1340
1341 // Step 1. Scale mapping.
1342 if (CurrSS >= 71 && CurrSS <= 100)
1343 RetSS = 90 + ((CurrSS - 70) / 3);
1344 else if (CurrSS >= 41 && CurrSS <= 70)
1345 RetSS = 78 + ((CurrSS - 40) / 3);
1346 else if (CurrSS >= 31 && CurrSS <= 40)
1347 RetSS = 66 + (CurrSS - 30);
1348 else if (CurrSS >= 21 && CurrSS <= 30)
1349 RetSS = 54 + (CurrSS - 20);
1350 else if (CurrSS >= 5 && CurrSS <= 20)
1351 RetSS = 42 + (((CurrSS - 5) * 2) / 3);
1352 else if (CurrSS == 4)
1353 RetSS = 36;
1354 else if (CurrSS == 3)
1355 RetSS = 27;
1356 else if (CurrSS == 2)
1357 RetSS = 18;
1358 else if (CurrSS == 1)
1359 RetSS = 9;
1360 else
1361 RetSS = CurrSS;
1362
1363 // Step 2. Smoothing.
1364 if (LastSS > 0)
1365 RetSS = ((LastSS * 5) + (RetSS) + 5) / 6;
1366
1367 return RetSS;
1368}
1369
1370//
1371// Description:
1372// Translate 0-100 signal strength index into dBm.
1373//
1374long TranslateToDbm8185(u8 SignalStrengthIndex)
1375{
1376 long SignalPower;
1377
1378 // Translate to dBm (x=0.5y-95).
1379 SignalPower = (long)((SignalStrengthIndex + 1) >> 1);
1380 SignalPower -= 95;
1381
1382 return SignalPower;
1383}
1384
1385//
1386// Description:
1387// Perform signal smoothing for dynamic mechanism.
1388// This is different with PerformSignalSmoothing8185 in smoothing fomula.
1389// No dramatic adjustion is apply because dynamic mechanism need some degree
1390// of correctness. Ported from 8187B.
1391//
1392void PerformUndecoratedSignalSmoothing8185(struct r8180_priv *priv,
1393 bool bCckRate)
1394{
1395 // Determin the current packet is CCK rate.
1396 priv->bCurCCKPkt = bCckRate;
1397
1398 if (priv->UndecoratedSmoothedSS >= 0)
1399 priv->UndecoratedSmoothedSS = ((priv->UndecoratedSmoothedSS * 5) + (priv->SignalStrength * 10)) / 6;
1400 else
1401 priv->UndecoratedSmoothedSS = priv->SignalStrength * 10;
1402
1403 priv->UndercorateSmoothedRxPower = ((priv->UndercorateSmoothedRxPower * 50) + (priv->RxPower * 11)) / 60;
1404
1405 if (bCckRate)
1406 priv->CurCCKRSSI = priv->RSSI;
1407 else
1408 priv->CurCCKRSSI = 0;
1409}
1410
1411
1412/* This is rough RX isr handling routine*/
1413void rtl8180_rx(struct net_device *dev)
1414{
1415 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
1416 struct sk_buff *tmp_skb;
1417 short first, last;
1418 u32 len;
1419 int lastlen;
1420 unsigned char quality, signal;
1421 u8 rate;
1422 u32 *tmp, *tmp2;
1423 u8 rx_desc_size;
1424 u8 padding;
1425 char rxpower = 0;
1426 u32 RXAGC = 0;
1427 long RxAGC_dBm = 0;
1428 u8 LNA = 0, BB = 0;
1429 u8 LNA_gain[4] = {02, 17, 29, 39};
1430 u8 Antenna = 0;
1431 struct ieee80211_hdr_4addr *hdr;
1432 u16 fc, type;
1433 u8 bHwError = 0, bCRC = 0, bICV = 0;
1434 bool bCckRate = false;
1435 u8 RSSI = 0;
1436 long SignalStrengthIndex = 0;
1437 struct ieee80211_rx_stats stats = {
1438 .signal = 0,
1439 .noise = -98,
1440 .rate = 0,
1441 .freq = IEEE80211_24GHZ_BAND,
1442 };
1443
1444 stats.nic_type = NIC_8185B;
1445 rx_desc_size = 8;
1446
1447 if ((*(priv->rxringtail)) & (1<<31)) {
1448 /* we have got an RX int, but the descriptor
1449 * we are pointing is empty*/
1450
1451 priv->stats.rxnodata++;
1452 priv->ieee80211->stats.rx_errors++;
1453
1454 tmp2 = NULL;
1455 tmp = priv->rxringtail;
1456 do {
1457 if (tmp == priv->rxring)
1458 tmp = priv->rxring + (priv->rxringcount - 1)*rx_desc_size;
1459 else
1460 tmp -= rx_desc_size;
1461
1462 if (!(*tmp & (1<<31)))
1463 tmp2 = tmp;
1464 } while (tmp != priv->rxring);
1465
1466 if (tmp2)
1467 priv->rxringtail = tmp2;
1468 }
1469
1470 /* while there are filled descriptors */
1471 while (!(*(priv->rxringtail) & (1<<31))) {
1472 if (*(priv->rxringtail) & (1<<26))
1473 DMESGW("RX buffer overflow");
1474 if (*(priv->rxringtail) & (1<<12))
1475 priv->stats.rxicverr++;
1476
1477 if (*(priv->rxringtail) & (1<<27)) {
1478 priv->stats.rxdmafail++;
1479 //DMESG("EE: RX DMA FAILED at buffer pointed by descriptor %x",(u32)priv->rxringtail);
1480 goto drop;
1481 }
1482
1483 pci_dma_sync_single_for_cpu(priv->pdev,
1484 priv->rxbuffer->dma,
1485 priv->rxbuffersize * \
1486 sizeof(u8),
1487 PCI_DMA_FROMDEVICE);
1488
1489 first = *(priv->rxringtail) & (1<<29) ? 1 : 0;
1490 if (first)
1491 priv->rx_prevlen = 0;
1492
1493 last = *(priv->rxringtail) & (1<<28) ? 1 : 0;
1494 if (last) {
1495 lastlen = ((*priv->rxringtail) & 0xfff);
1496
1497 /* if the last descriptor (that should
1498 * tell us the total packet len) tell
1499 * us something less than the descriptors
1500 * len we had until now, then there is some
1501 * problem..
1502 * workaround to prevent kernel panic
1503 */
1504 if (lastlen < priv->rx_prevlen)
1505 len = 0;
1506 else
1507 len = lastlen-priv->rx_prevlen;
1508
1509 if (*(priv->rxringtail) & (1<<13)) {
1510 if ((*(priv->rxringtail) & 0xfff) < 500)
1511 priv->stats.rxcrcerrmin++;
1512 else if ((*(priv->rxringtail) & 0x0fff) > 1000)
1513 priv->stats.rxcrcerrmax++;
1514 else
1515 priv->stats.rxcrcerrmid++;
1516
1517 }
1518
1519 } else {
1520 len = priv->rxbuffersize;
1521 }
1522
1523 if (first && last) {
1524 padding = ((*(priv->rxringtail+3))&(0x04000000))>>26;
1525 } else if (first) {
1526 padding = ((*(priv->rxringtail+3))&(0x04000000))>>26;
1527 if (padding)
1528 len -= 2;
1529 } else {
1530 padding = 0;
1531 }
1532 padding = 0;
1533 priv->rx_prevlen += len;
1534
1535 if (priv->rx_prevlen > MAX_FRAG_THRESHOLD + 100) {
1536 /* HW is probably passing several buggy frames
1537 * without FD or LD flag set.
1538 * Throw this garbage away to prevent skb
1539 * memory exausting
1540 */
1541 if (!priv->rx_skb_complete)
1542 dev_kfree_skb_any(priv->rx_skb);
1543 priv->rx_skb_complete = 1;
1544 }
1545
1546 signal = (unsigned char)(((*(priv->rxringtail+3)) & (0x00ff0000))>>16);
1547 signal = (signal & 0xfe) >> 1;
1548
1549 quality = (unsigned char)((*(priv->rxringtail+3)) & (0xff));
1550
1551 stats.mac_time[0] = *(priv->rxringtail+1);
1552 stats.mac_time[1] = *(priv->rxringtail+2);
1553 rxpower = ((char)(((*(priv->rxringtail+4)) & (0x00ff0000))>>16))/2 - 42;
1554 RSSI = ((u8)(((*(priv->rxringtail+3)) & (0x0000ff00))>>8)) & (0x7f);
1555
1556 rate = ((*(priv->rxringtail)) &
1557 ((1<<23)|(1<<22)|(1<<21)|(1<<20)))>>20;
1558
1559 stats.rate = rtl8180_rate2rate(rate);
1560 Antenna = (((*(priv->rxringtail+3)) & (0x00008000)) == 0) ? 0 : 1;
1561 if (!rtl8180_IsWirelessBMode(stats.rate)) { // OFDM rate.
1562 RxAGC_dBm = rxpower+1; //bias
1563 } else { // CCK rate.
1564 RxAGC_dBm = signal; //bit 0 discard
1565
1566 LNA = (u8) (RxAGC_dBm & 0x60) >> 5 ; //bit 6~ bit 5
1567 BB = (u8) (RxAGC_dBm & 0x1F); // bit 4 ~ bit 0
1568
1569 RxAGC_dBm = -(LNA_gain[LNA] + (BB*2)); //Pin_11b=-(LNA_gain+BB_gain) (dBm)
1570
1571 RxAGC_dBm += 4; //bias
1572 }
1573
1574 if (RxAGC_dBm & 0x80) //absolute value
1575 RXAGC = ~(RxAGC_dBm)+1;
1576 bCckRate = rtl8180_IsWirelessBMode(stats.rate);
1577 // Translate RXAGC into 1-100.
1578 if (!rtl8180_IsWirelessBMode(stats.rate)) { // OFDM rate.
1579 if (RXAGC > 90)
1580 RXAGC = 90;
1581 else if (RXAGC < 25)
1582 RXAGC = 25;
1583 RXAGC = (90-RXAGC)*100/65;
1584 } else { // CCK rate.
1585 if (RXAGC > 95)
1586 RXAGC = 95;
1587 else if (RXAGC < 30)
1588 RXAGC = 30;
1589 RXAGC = (95-RXAGC)*100/65;
1590 }
1591 priv->SignalStrength = (u8)RXAGC;
1592 priv->RecvSignalPower = RxAGC_dBm;
1593 priv->RxPower = rxpower;
1594 priv->RSSI = RSSI;
1595 /* SQ translation formula is provided by SD3 DZ. 2006.06.27 */
1596 if (quality >= 127)
1597 quality = 1;//0; //0 will cause epc to show signal zero , walk aroud now;
1598 else if (quality < 27)
1599 quality = 100;
1600 else
1601 quality = 127 - quality;
1602 priv->SignalQuality = quality;
1603
1604 stats.signal = (u8)quality;//priv->wstats.qual.level = priv->SignalStrength;
1605 stats.signalstrength = RXAGC;
1606 if (stats.signalstrength > 100)
1607 stats.signalstrength = 100;
1608 stats.signalstrength = (stats.signalstrength * 70)/100 + 30;
1609 // printk("==========================>rx : RXAGC is %d,signalstrength is %d\n",RXAGC,stats.signalstrength);
1610 stats.rssi = priv->wstats.qual.qual = priv->SignalQuality;
1611 stats.noise = priv->wstats.qual.noise = 100 - priv->wstats.qual.qual;
1612 bHwError = (((*(priv->rxringtail)) & (0x00000fff)) == 4080) | (((*(priv->rxringtail)) & (0x04000000)) != 0)
1613 | (((*(priv->rxringtail)) & (0x08000000)) != 0) | (((~(*(priv->rxringtail))) & (0x10000000)) != 0) | (((~(*(priv->rxringtail))) & (0x20000000)) != 0);
1614 bCRC = ((*(priv->rxringtail)) & (0x00002000)) >> 13;
1615 bICV = ((*(priv->rxringtail)) & (0x00001000)) >> 12;
1616 hdr = (struct ieee80211_hdr_4addr *)priv->rxbuffer->buf;
1617 fc = le16_to_cpu(hdr->frame_ctl);
1618 type = WLAN_FC_GET_TYPE(fc);
1619
1620 if ((IEEE80211_FTYPE_CTL != type) &&
1621 (eqMacAddr(priv->ieee80211->current_network.bssid, (fc & IEEE80211_FCTL_TODS) ? hdr->addr1 : (fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 : hdr->addr3))
1622 && (!bHwError) && (!bCRC) && (!bICV)) {
1623 /* Perform signal smoothing for dynamic
1624 * mechanism on demand. This is different
1625 * with PerformSignalSmoothing8185 in smoothing
1626 * fomula. No dramatic adjustion is apply
1627 * because dynamic mechanism need some degree
1628 * of correctness. */
1629 PerformUndecoratedSignalSmoothing8185(priv, bCckRate);
1630 //
1631 // For good-looking singal strength.
1632 //
1633 SignalStrengthIndex = NetgearSignalStrengthTranslate(
1634 priv->LastSignalStrengthInPercent,
1635 priv->SignalStrength);
1636
1637 priv->LastSignalStrengthInPercent = SignalStrengthIndex;
1638 priv->Stats_SignalStrength = TranslateToDbm8185((u8)SignalStrengthIndex);
1639 //
1640 // We need more correct power of received packets and the "SignalStrength" of RxStats is beautified,
1641 // so we record the correct power here.
1642 //
1643 priv->Stats_SignalQuality = (long)(priv->Stats_SignalQuality * 5 + (long)priv->SignalQuality + 5) / 6;
1644 priv->Stats_RecvSignalPower = (long)(priv->Stats_RecvSignalPower * 5 + priv->RecvSignalPower - 1) / 6;
1645
1646 // Figure out which antenna that received the lasted packet.
1647 priv->LastRxPktAntenna = Antenna ? 1 : 0; // 0: aux, 1: main.
1648 SwAntennaDiversityRxOk8185(dev, priv->SignalStrength);
1649 }
1650
1651 if (first) {
1652 if (!priv->rx_skb_complete) {
1653 /* seems that HW sometimes fails to reiceve and
1654 doesn't provide the last descriptor */
1655 dev_kfree_skb_any(priv->rx_skb);
1656 priv->stats.rxnolast++;
1657 }
1658 /* support for prism header has been originally added by Christian */
1659 if (priv->prism_hdr && priv->ieee80211->iw_mode == IW_MODE_MONITOR) {
1660
1661 } else {
1662 priv->rx_skb = dev_alloc_skb(len+2);
1663 if (!priv->rx_skb)
1664 goto drop;
1665 }
1666
1667 priv->rx_skb_complete = 0;
1668 priv->rx_skb->dev = dev;
1669 } else {
1670 /* if we are here we should have already RXed
1671 * the first frame.
1672 * If we get here and the skb is not allocated then
1673 * we have just throw out garbage (skb not allocated)
1674 * and we are still rxing garbage....
1675 */
1676 if (!priv->rx_skb_complete) {
1677
1678 tmp_skb = dev_alloc_skb(priv->rx_skb->len+len+2);
1679
1680 if (!tmp_skb)
1681 goto drop;
1682
1683 tmp_skb->dev = dev;
1684
1685 memcpy(skb_put(tmp_skb, priv->rx_skb->len),
1686 priv->rx_skb->data,
1687 priv->rx_skb->len);
1688
1689 dev_kfree_skb_any(priv->rx_skb);
1690
1691 priv->rx_skb = tmp_skb;
1692 }
1693 }
1694
1695 if (!priv->rx_skb_complete) {
1696 if (padding) {
1697 memcpy(skb_put(priv->rx_skb, len),
1698 (((unsigned char *)priv->rxbuffer->buf) + 2), len);
1699 } else {
1700 memcpy(skb_put(priv->rx_skb, len),
1701 priv->rxbuffer->buf, len);
1702 }
1703 }
1704
1705 if (last && !priv->rx_skb_complete) {
1706 if (priv->rx_skb->len > 4)
1707 skb_trim(priv->rx_skb, priv->rx_skb->len-4);
1708 if (!ieee80211_rtl_rx(priv->ieee80211,
1709 priv->rx_skb, &stats))
1710 dev_kfree_skb_any(priv->rx_skb);
1711 priv->rx_skb_complete = 1;
1712 }
1713
1714 pci_dma_sync_single_for_device(priv->pdev,
1715 priv->rxbuffer->dma,
1716 priv->rxbuffersize * \
1717 sizeof(u8),
1718 PCI_DMA_FROMDEVICE);
1719
1720drop: // this is used when we have not enough mem
1721 /* restore the descriptor */
1722 *(priv->rxringtail+2) = priv->rxbuffer->dma;
1723 *(priv->rxringtail) = *(priv->rxringtail) & ~0xfff;
1724 *(priv->rxringtail) =
1725 *(priv->rxringtail) | priv->rxbuffersize;
1726
1727 *(priv->rxringtail) =
1728 *(priv->rxringtail) | (1<<31);
1729
1730 priv->rxringtail += rx_desc_size;
1731 if (priv->rxringtail >=
1732 (priv->rxring)+(priv->rxringcount)*rx_desc_size)
1733 priv->rxringtail = priv->rxring;
1734
1735 priv->rxbuffer = (priv->rxbuffer->next);
1736 }
1737}
1738
1739
1740void rtl8180_dma_kick(struct net_device *dev, int priority)
1741{
1742 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
1743
1744 rtl8180_set_mode(dev, EPROM_CMD_CONFIG);
1745 write_nic_byte(dev, TX_DMA_POLLING,
1746 (1 << (priority + 1)) | priv->dma_poll_mask);
1747 rtl8180_set_mode(dev, EPROM_CMD_NORMAL);
1748
1749 force_pci_posting(dev);
1750}
1751
1752void rtl8180_data_hard_stop(struct net_device *dev)
1753{
1754 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
1755
1756 rtl8180_set_mode(dev, EPROM_CMD_CONFIG);
1757 priv->dma_poll_stop_mask |= TPPOLLSTOP_AC_VIQ;
1758 write_nic_byte(dev, TPPollStop, priv->dma_poll_stop_mask);
1759 rtl8180_set_mode(dev, EPROM_CMD_NORMAL);
1760}
1761
1762void rtl8180_data_hard_resume(struct net_device *dev)
1763{
1764 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
1765
1766 rtl8180_set_mode(dev, EPROM_CMD_CONFIG);
1767 priv->dma_poll_stop_mask &= ~(TPPOLLSTOP_AC_VIQ);
1768 write_nic_byte(dev, TPPollStop, priv->dma_poll_stop_mask);
1769 rtl8180_set_mode(dev, EPROM_CMD_NORMAL);
1770}
1771
1772/* this function TX data frames when the ieee80211 stack requires this.
1773 * It checks also if we need to stop the ieee tx queue, eventually do it
1774 */
1775void rtl8180_hard_data_xmit(struct sk_buff *skb, struct net_device *dev, int
1776rate) {
1777 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
1778 int mode;
1779 struct ieee80211_hdr_3addr *h = (struct ieee80211_hdr_3addr *) skb->data;
1780 short morefrag = (h->frame_control) & IEEE80211_FCTL_MOREFRAGS;
1781 unsigned long flags;
1782 int priority;
1783
1784 mode = priv->ieee80211->iw_mode;
1785
1786 rate = ieeerate2rtlrate(rate);
1787 /*
1788 * This function doesn't require lock because we make
1789 * sure it's called with the tx_lock already acquired.
1790 * this come from the kernel's hard_xmit callback (through
1791 * the ieee stack, or from the try_wake_queue (again through
1792 * the ieee stack.
1793 */
1794 priority = AC2Q(skb->priority);
1795 spin_lock_irqsave(&priv->tx_lock, flags);
1796
1797 if (priv->ieee80211->bHwRadioOff) {
1798 spin_unlock_irqrestore(&priv->tx_lock, flags);
1799
1800 return;
1801 }
1802
1803 if (!check_nic_enought_desc(dev, priority)) {
1804 DMESGW("Error: no descriptor left by previous TX (avail %d) ",
1805 get_curr_tx_free_desc(dev, priority));
1806 ieee80211_rtl_stop_queue(priv->ieee80211);
1807 }
1808 rtl8180_tx(dev, skb->data, skb->len, priority, morefrag, 0, rate);
1809 if (!check_nic_enought_desc(dev, priority))
1810 ieee80211_rtl_stop_queue(priv->ieee80211);
1811
1812 spin_unlock_irqrestore(&priv->tx_lock, flags);
1813}
1814
1815/* This is a rough attempt to TX a frame
1816 * This is called by the ieee 80211 stack to TX management frames.
1817 * If the ring is full packet are dropped (for data frame the queue
1818 * is stopped before this can happen). For this reason it is better
1819 * if the descriptors are larger than the largest management frame
1820 * we intend to TX: i'm unsure what the HW does if it will not found
1821 * the last fragment of a frame because it has been dropped...
1822 * Since queues for Management and Data frames are different we
1823 * might use a different lock than tx_lock (for example mgmt_tx_lock)
1824 */
1825/* these function may loops if invoked with 0 descriptors or 0 len buffer*/
1826int rtl8180_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1827{
1828 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
1829 unsigned long flags;
1830 int priority;
1831
1832 priority = MANAGE_PRIORITY;
1833
1834 spin_lock_irqsave(&priv->tx_lock, flags);
1835
1836 if (priv->ieee80211->bHwRadioOff) {
1837 spin_unlock_irqrestore(&priv->tx_lock, flags);
1838 dev_kfree_skb_any(skb);
1839 return NETDEV_TX_OK;
1840 }
1841
1842 rtl8180_tx(dev, skb->data, skb->len, priority,
1843 0, 0, ieeerate2rtlrate(priv->ieee80211->basic_rate));
1844
1845 priv->ieee80211->stats.tx_bytes += skb->len;
1846 priv->ieee80211->stats.tx_packets++;
1847 spin_unlock_irqrestore(&priv->tx_lock, flags);
1848
1849 dev_kfree_skb_any(skb);
1850 return NETDEV_TX_OK;
1851}
1852
1853// longpre 144+48 shortpre 72+24
1854u16 rtl8180_len2duration(u32 len, short rate, short *ext)
1855{
1856 u16 duration;
1857 u16 drift;
1858 *ext = 0;
1859
1860 switch (rate) {
1861 case 0://1mbps
1862 *ext = 0;
1863 duration = ((len+4)<<4) / 0x2;
1864 drift = ((len+4)<<4) % 0x2;
1865 if (drift == 0)
1866 break;
1867 duration++;
1868 break;
1869 case 1://2mbps
1870 *ext = 0;
1871 duration = ((len+4)<<4) / 0x4;
1872 drift = ((len+4)<<4) % 0x4;
1873 if (drift == 0)
1874 break;
1875 duration++;
1876 break;
1877 case 2: //5.5mbps
1878 *ext = 0;
1879 duration = ((len+4)<<4) / 0xb;
1880 drift = ((len+4)<<4) % 0xb;
1881 if (drift == 0)
1882 break;
1883 duration++;
1884 break;
1885 default:
1886 case 3://11mbps
1887 *ext = 0;
1888 duration = ((len+4)<<4) / 0x16;
1889 drift = ((len+4)<<4) % 0x16;
1890 if (drift == 0)
1891 break;
1892 duration++;
1893 if (drift > 6)
1894 break;
1895 *ext = 1;
1896 break;
1897 }
1898
1899 return duration;
1900}
1901
1902void rtl8180_prepare_beacon(struct net_device *dev)
1903{
1904 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
1905 struct sk_buff *skb;
1906
1907 u16 word = read_nic_word(dev, BcnItv);
1908 word &= ~BcnItv_BcnItv; // clear Bcn_Itv
1909 word |= cpu_to_le16(priv->ieee80211->current_network.beacon_interval); //0x64;
1910 write_nic_word(dev, BcnItv, word);
1911
1912 skb = ieee80211_get_beacon(priv->ieee80211);
1913 if (skb) {
1914 rtl8180_tx(dev, skb->data, skb->len, BEACON_PRIORITY,
1915 0, 0, ieeerate2rtlrate(priv->ieee80211->basic_rate));
1916 dev_kfree_skb_any(skb);
1917 }
1918}
1919
1920/* This function do the real dirty work: it enqueues a TX command
1921 * descriptor in the ring buffer, copyes the frame in a TX buffer
1922 * and kicks the NIC to ensure it does the DMA transfer.
1923 */
1924short rtl8180_tx(struct net_device *dev, u8* txbuf, int len, int priority,
1925 short morefrag, short descfrag, int rate)
1926{
1927 struct r8180_priv *priv = ieee80211_priv(dev);
1928 u32 *tail, *temp_tail;
1929 u32 *begin;
1930 u32 *buf;
1931 int i;
1932 int remain;
1933 int buflen;
1934 int count;
1935 u16 duration;
1936 short ext;
1937 struct buffer *buflist;
1938 struct ieee80211_hdr_3addr *frag_hdr = (struct ieee80211_hdr_3addr *)txbuf;
1939 u8 dest[ETH_ALEN];
1940 u8 bUseShortPreamble = 0;
1941 u8 bCTSEnable = 0;
1942 u8 bRTSEnable = 0;
1943 u16 Duration = 0;
1944 u16 RtsDur = 0;
1945 u16 ThisFrameTime = 0;
1946 u16 TxDescDuration = 0;
1947 u8 ownbit_flag = false;
1948
1949 switch (priority) {
1950 case MANAGE_PRIORITY:
1951 tail = priv->txmapringtail;
1952 begin = priv->txmapring;
1953 buflist = priv->txmapbufstail;
1954 count = priv->txringcount;
1955 break;
1956 case BK_PRIORITY:
1957 tail = priv->txbkpringtail;
1958 begin = priv->txbkpring;
1959 buflist = priv->txbkpbufstail;
1960 count = priv->txringcount;
1961 break;
1962 case BE_PRIORITY:
1963 tail = priv->txbepringtail;
1964 begin = priv->txbepring;
1965 buflist = priv->txbepbufstail;
1966 count = priv->txringcount;
1967 break;
1968 case VI_PRIORITY:
1969 tail = priv->txvipringtail;
1970 begin = priv->txvipring;
1971 buflist = priv->txvipbufstail;
1972 count = priv->txringcount;
1973 break;
1974 case VO_PRIORITY:
1975 tail = priv->txvopringtail;
1976 begin = priv->txvopring;
1977 buflist = priv->txvopbufstail;
1978 count = priv->txringcount;
1979 break;
1980 case HI_PRIORITY:
1981 tail = priv->txhpringtail;
1982 begin = priv->txhpring;
1983 buflist = priv->txhpbufstail;
1984 count = priv->txringcount;
1985 break;
1986 case BEACON_PRIORITY:
1987 tail = priv->txbeaconringtail;
1988 begin = priv->txbeaconring;
1989 buflist = priv->txbeaconbufstail;
1990 count = priv->txbeaconcount;
1991 break;
1992 default:
1993 return -1;
1994 break;
1995 }
1996
1997 memcpy(&dest, frag_hdr->addr1, ETH_ALEN);
1998 if (is_multicast_ether_addr(dest) ||
1999 is_broadcast_ether_addr(dest)) {
2000 Duration = 0;
2001 RtsDur = 0;
2002 bRTSEnable = 0;
2003 bCTSEnable = 0;
2004
2005 ThisFrameTime = ComputeTxTime(len + sCrcLng, rtl8180_rate2rate(rate), 0, bUseShortPreamble);
2006 TxDescDuration = ThisFrameTime;
2007 } else {// Unicast packet
2008 u16 AckTime;
2009
2010 //YJ,add,080828,for Keep alive
2011 priv->NumTxUnicast++;
2012
2013 /* Figure out ACK rate according to BSS basic rate
2014 * and Tx rate. */
2015 AckTime = ComputeTxTime(14, 10, 0, 0); // AckCTSLng = 14 use 1M bps send
2016
2017 if (((len + sCrcLng) > priv->rts) && priv->rts) { // RTS/CTS.
2018 u16 RtsTime, CtsTime;
2019 //u16 CtsRate;
2020 bRTSEnable = 1;
2021 bCTSEnable = 0;
2022
2023 // Rate and time required for RTS.
2024 RtsTime = ComputeTxTime(sAckCtsLng/8, priv->ieee80211->basic_rate, 0, 0);
2025 // Rate and time required for CTS.
2026 CtsTime = ComputeTxTime(14, 10, 0, 0); // AckCTSLng = 14 use 1M bps send
2027
2028 // Figure out time required to transmit this frame.
2029 ThisFrameTime = ComputeTxTime(len + sCrcLng,
2030 rtl8180_rate2rate(rate),
2031 0,
2032 bUseShortPreamble);
2033
2034 // RTS-CTS-ThisFrame-ACK.
2035 RtsDur = CtsTime + ThisFrameTime + AckTime + 3*aSifsTime;
2036
2037 TxDescDuration = RtsTime + RtsDur;
2038 } else {// Normal case.
2039 bCTSEnable = 0;
2040 bRTSEnable = 0;
2041 RtsDur = 0;
2042
2043 ThisFrameTime = ComputeTxTime(len + sCrcLng, rtl8180_rate2rate(rate), 0, bUseShortPreamble);
2044 TxDescDuration = ThisFrameTime + aSifsTime + AckTime;
2045 }
2046
2047 if (!(frag_hdr->frame_control & IEEE80211_FCTL_MOREFRAGS)) {
2048 // ThisFrame-ACK.
2049 Duration = aSifsTime + AckTime;
2050 } else { // One or more fragments remained.
2051 u16 NextFragTime;
2052 NextFragTime = ComputeTxTime(len + sCrcLng, //pretend following packet length equal current packet
2053 rtl8180_rate2rate(rate),
2054 0,
2055 bUseShortPreamble);
2056
2057 //ThisFrag-ACk-NextFrag-ACK.
2058 Duration = NextFragTime + 3*aSifsTime + 2*AckTime;
2059 }
2060
2061 } // End of Unicast packet
2062
2063 frag_hdr->duration_id = Duration;
2064
2065 buflen = priv->txbuffsize;
2066 remain = len;
2067 temp_tail = tail;
2068
2069 while (remain != 0) {
2070 mb();
2071 if (!buflist) {
2072 DMESGE("TX buffer error, cannot TX frames. pri %d.", priority);
2073 return -1;
2074 }
2075 buf = buflist->buf;
2076
2077 if ((*tail & (1 << 31)) && (priority != BEACON_PRIORITY)) {
2078 DMESGW("No more TX desc, returning %x of %x",
2079 remain, len);
2080 priv->stats.txrdu++;
2081 return remain;
2082 }
2083
2084 *tail = 0; // zeroes header
2085 *(tail+1) = 0;
2086 *(tail+3) = 0;
2087 *(tail+5) = 0;
2088 *(tail+6) = 0;
2089 *(tail+7) = 0;
2090
2091 /*FIXME: this should be triggered by HW encryption parameters.*/
2092 *tail |= (1<<15); /* no encrypt */
2093
2094 if (remain == len && !descfrag) {
2095 ownbit_flag = false;
2096 *tail = *tail | (1<<29) ; //fist segment of the packet
2097 *tail = *tail | (len);
2098 } else {
2099 ownbit_flag = true;
2100 }
2101
2102 for (i = 0; i < buflen && remain > 0; i++, remain--) {
2103 ((u8 *)buf)[i] = txbuf[i]; //copy data into descriptor pointed DMAble buffer
2104 if (remain == 4 && i+4 >= buflen)
2105 break;
2106 /* ensure the last desc has at least 4 bytes payload */
2107
2108 }
2109 txbuf = txbuf + i;
2110 *(tail+3) = *(tail+3) & ~0xfff;
2111 *(tail+3) = *(tail+3) | i; // buffer lenght
2112 // Use short preamble or not
2113 if (priv->ieee80211->current_network.capability&WLAN_CAPABILITY_SHORT_PREAMBLE)
2114 if (priv->plcp_preamble_mode == 1 && rate != 0) // short mode now, not long!
2115 ;// *tail |= (1<<16); // enable short preamble mode.
2116
2117 if (bCTSEnable)
2118 *tail |= (1<<18);
2119
2120 if (bRTSEnable) { //rts enable
2121 *tail |= ((ieeerate2rtlrate(priv->ieee80211->basic_rate))<<19);//RTS RATE
2122 *tail |= (1<<23);//rts enable
2123 *(tail+1) |= (RtsDur&0xffff);//RTS Duration
2124 }
2125 *(tail+3) |= ((TxDescDuration&0xffff)<<16); //DURATION
2126// *(tail+3) |= (0xe6<<16);
2127 *(tail+5) |= (11<<8);//(priv->retry_data<<8); //retry lim ;
2128
2129 *tail = *tail | ((rate&0xf) << 24);
2130
2131 /* hw_plcp_len is not used for rtl8180 chip */
2132 /* FIXME */
2133 if (!priv->hw_plcp_len) {
2134 duration = rtl8180_len2duration(len, rate, &ext);
2135 *(tail+1) = *(tail+1) | ((duration & 0x7fff)<<16);
2136 if (ext)
2137 *(tail+1) = *(tail+1) | (1<<31); //plcp length extension
2138 }
2139
2140 if (morefrag)
2141 *tail = (*tail) | (1<<17); // more fragment
2142 if (!remain)
2143 *tail = (*tail) | (1<<28); // last segment of frame
2144
2145 *(tail+5) = *(tail+5)|(2<<27);
2146 *(tail+7) = *(tail+7)|(1<<4);
2147
2148 wmb();
2149 if (ownbit_flag)
2150 *tail = *tail | (1<<31); // descriptor ready to be txed
2151
2152 if ((tail - begin)/8 == count-1)
2153 tail = begin;
2154 else
2155 tail = tail+8;
2156
2157 buflist = buflist->next;
2158
2159 mb();
2160
2161 switch (priority) {
2162 case MANAGE_PRIORITY:
2163 priv->txmapringtail = tail;
2164 priv->txmapbufstail = buflist;
2165 break;
2166 case BK_PRIORITY:
2167 priv->txbkpringtail = tail;
2168 priv->txbkpbufstail = buflist;
2169 break;
2170 case BE_PRIORITY:
2171 priv->txbepringtail = tail;
2172 priv->txbepbufstail = buflist;
2173 break;
2174 case VI_PRIORITY:
2175 priv->txvipringtail = tail;
2176 priv->txvipbufstail = buflist;
2177 break;
2178 case VO_PRIORITY:
2179 priv->txvopringtail = tail;
2180 priv->txvopbufstail = buflist;
2181 break;
2182 case HI_PRIORITY:
2183 priv->txhpringtail = tail;
2184 priv->txhpbufstail = buflist;
2185 break;
2186 case BEACON_PRIORITY:
2187 /* the HW seems to be happy with the 1st
2188 * descriptor filled and the 2nd empty...
2189 * So always update descriptor 1 and never
2190 * touch 2nd
2191 */
2192 break;
2193 }
2194 }
2195 *temp_tail = *temp_tail | (1<<31); // descriptor ready to be txed
2196 rtl8180_dma_kick(dev, priority);
2197
2198 return 0;
2199}
2200
2201void rtl8180_irq_rx_tasklet(struct r8180_priv *priv);
2202
2203void rtl8180_link_change(struct net_device *dev)
2204{
2205 struct r8180_priv *priv = ieee80211_priv(dev);
2206 u16 beacon_interval;
2207 struct ieee80211_network *net = &priv->ieee80211->current_network;
2208
2209 rtl8180_update_msr(dev);
2210
2211 rtl8180_set_mode(dev, EPROM_CMD_CONFIG);
2212
2213 write_nic_dword(dev, BSSID, ((u32 *)net->bssid)[0]);
2214 write_nic_word(dev, BSSID+4, ((u16 *)net->bssid)[2]);
2215
2216 beacon_interval = read_nic_dword(dev, BEACON_INTERVAL);
2217 beacon_interval &= ~BEACON_INTERVAL_MASK;
2218 beacon_interval |= net->beacon_interval;
2219 write_nic_dword(dev, BEACON_INTERVAL, beacon_interval);
2220
2221 rtl8180_set_mode(dev, EPROM_CMD_NORMAL);
2222
2223 rtl8180_set_chan(dev, priv->chan);
2224}
2225
2226void rtl8180_rq_tx_ack(struct net_device *dev)
2227{
2228
2229 struct r8180_priv *priv = ieee80211_priv(dev);
2230
2231 write_nic_byte(dev, CONFIG4, read_nic_byte(dev, CONFIG4) | CONFIG4_PWRMGT);
2232 priv->ack_tx_to_ieee = 1;
2233}
2234
2235short rtl8180_is_tx_queue_empty(struct net_device *dev)
2236{
2237
2238 struct r8180_priv *priv = ieee80211_priv(dev);
2239 u32 *d;
2240
2241 for (d = priv->txmapring;
2242 d < priv->txmapring + priv->txringcount; d += 8)
2243 if (*d & (1<<31))
2244 return 0;
2245
2246 for (d = priv->txbkpring;
2247 d < priv->txbkpring + priv->txringcount; d += 8)
2248 if (*d & (1<<31))
2249 return 0;
2250
2251 for (d = priv->txbepring;
2252 d < priv->txbepring + priv->txringcount; d += 8)
2253 if (*d & (1<<31))
2254 return 0;
2255
2256 for (d = priv->txvipring;
2257 d < priv->txvipring + priv->txringcount; d += 8)
2258 if (*d & (1<<31))
2259 return 0;
2260
2261 for (d = priv->txvopring;
2262 d < priv->txvopring + priv->txringcount; d += 8)
2263 if (*d & (1<<31))
2264 return 0;
2265
2266 for (d = priv->txhpring;
2267 d < priv->txhpring + priv->txringcount; d += 8)
2268 if (*d & (1<<31))
2269 return 0;
2270 return 1;
2271}
2272/* FIXME FIXME 5msecs is random */
2273#define HW_WAKE_DELAY 5
2274
2275void rtl8180_hw_wakeup(struct net_device *dev)
2276{
2277 unsigned long flags;
2278 struct r8180_priv *priv = ieee80211_priv(dev);
2279
2280 spin_lock_irqsave(&priv->ps_lock, flags);
2281 write_nic_byte(dev, CONFIG4, read_nic_byte(dev, CONFIG4) & ~CONFIG4_PWRMGT);
2282 if (priv->rf_wakeup)
2283 priv->rf_wakeup(dev);
2284 spin_unlock_irqrestore(&priv->ps_lock, flags);
2285}
2286
2287void rtl8180_hw_sleep_down(struct net_device *dev)
2288{
2289 unsigned long flags;
2290 struct r8180_priv *priv = ieee80211_priv(dev);
2291
2292 spin_lock_irqsave(&priv->ps_lock, flags);
2293 if (priv->rf_sleep)
2294 priv->rf_sleep(dev);
2295 spin_unlock_irqrestore(&priv->ps_lock, flags);
2296}
2297
2298void rtl8180_hw_sleep(struct net_device *dev, u32 th, u32 tl)
2299{
2300 struct r8180_priv *priv = ieee80211_priv(dev);
2301 u32 rb = jiffies;
2302 unsigned long flags;
2303
2304 spin_lock_irqsave(&priv->ps_lock, flags);
2305
2306 /* Writing HW register with 0 equals to disable
2307 * the timer, that is not really what we want
2308 */
2309 tl -= MSECS(4+16+7);
2310
2311 /* If the interval in witch we are requested to sleep is too
2312 * short then give up and remain awake
2313 */
2314 if (((tl >= rb) && (tl-rb) <= MSECS(MIN_SLEEP_TIME))
2315 || ((rb > tl) && (rb-tl) < MSECS(MIN_SLEEP_TIME))) {
2316 spin_unlock_irqrestore(&priv->ps_lock, flags);
2317 printk("too short to sleep\n");
2318 return;
2319 }
2320
2321 {
2322 u32 tmp = (tl > rb) ? (tl-rb) : (rb-tl);
2323
2324 priv->DozePeriodInPast2Sec += jiffies_to_msecs(tmp);
2325
2326 queue_delayed_work(priv->ieee80211->wq, &priv->ieee80211->hw_wakeup_wq, tmp); //as tl may be less than rb
2327 }
2328 /* if we suspect the TimerInt is gone beyond tl
2329 * while setting it, then give up
2330 */
2331
2332 if (((tl > rb) && ((tl-rb) > MSECS(MAX_SLEEP_TIME))) ||
2333 ((tl < rb) && ((rb-tl) > MSECS(MAX_SLEEP_TIME)))) {
2334 spin_unlock_irqrestore(&priv->ps_lock, flags);
2335 return;
2336 }
2337
2338 queue_work(priv->ieee80211->wq, (void *)&priv->ieee80211->hw_sleep_wq);
2339 spin_unlock_irqrestore(&priv->ps_lock, flags);
2340}
2341
2342void rtl8180_wmm_param_update(struct work_struct *work)
2343{
2344 struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, wmm_param_update_wq);
2345 struct net_device *dev = ieee->dev;
2346 u8 *ac_param = (u8 *)(ieee->current_network.wmm_param);
2347 u8 mode = ieee->current_network.mode;
2348 AC_CODING eACI;
2349 AC_PARAM AcParam;
2350 PAC_PARAM pAcParam;
2351 u8 i;
2352
2353 if (!ieee->current_network.QoS_Enable) {
2354 //legacy ac_xx_param update
2355 AcParam.longData = 0;
2356 AcParam.f.AciAifsn.f.AIFSN = 2; // Follow 802.11 DIFS.
2357 AcParam.f.AciAifsn.f.ACM = 0;
2358 AcParam.f.Ecw.f.ECWmin = 3; // Follow 802.11 CWmin.
2359 AcParam.f.Ecw.f.ECWmax = 7; // Follow 802.11 CWmax.
2360 AcParam.f.TXOPLimit = 0;
2361 for (eACI = 0; eACI < AC_MAX; eACI++) {
2362 AcParam.f.AciAifsn.f.ACI = (u8)eACI;
2363 {
2364 u8 u1bAIFS;
2365 u32 u4bAcParam;
2366 pAcParam = (PAC_PARAM)(&AcParam);
2367 // Retrive paramters to udpate.
2368 u1bAIFS = pAcParam->f.AciAifsn.f.AIFSN * (((mode&IEEE_G) == IEEE_G) ? 9 : 20) + aSifsTime;
2369 u4bAcParam = ((((u32)(pAcParam->f.TXOPLimit))<<AC_PARAM_TXOP_LIMIT_OFFSET)|
2370 (((u32)(pAcParam->f.Ecw.f.ECWmax))<<AC_PARAM_ECW_MAX_OFFSET)|
2371 (((u32)(pAcParam->f.Ecw.f.ECWmin))<<AC_PARAM_ECW_MIN_OFFSET)|
2372 (((u32)u1bAIFS) << AC_PARAM_AIFS_OFFSET));
2373 switch (eACI) {
2374 case AC1_BK:
2375 write_nic_dword(dev, AC_BK_PARAM, u4bAcParam);
2376 break;
2377 case AC0_BE:
2378 write_nic_dword(dev, AC_BE_PARAM, u4bAcParam);
2379 break;
2380 case AC2_VI:
2381 write_nic_dword(dev, AC_VI_PARAM, u4bAcParam);
2382 break;
2383 case AC3_VO:
2384 write_nic_dword(dev, AC_VO_PARAM, u4bAcParam);
2385 break;
2386 default:
2387 printk(KERN_WARNING "SetHwReg8185():invalid ACI: %d!\n", eACI);
2388 break;
2389 }
2390 }
2391 }
2392 return;
2393 }
2394
2395 for (i = 0; i < AC_MAX; i++) {
2396 //AcParam.longData = 0;
2397 pAcParam = (AC_PARAM *)ac_param;
2398 {
2399 AC_CODING eACI;
2400 u8 u1bAIFS;
2401 u32 u4bAcParam;
2402
2403 // Retrive paramters to udpate.
2404 eACI = pAcParam->f.AciAifsn.f.ACI;
2405 //Mode G/A: slotTimeTimer = 9; Mode B: 20
2406 u1bAIFS = pAcParam->f.AciAifsn.f.AIFSN * (((mode&IEEE_G) == IEEE_G) ? 9 : 20) + aSifsTime;
2407 u4bAcParam = ((((u32)(pAcParam->f.TXOPLimit)) << AC_PARAM_TXOP_LIMIT_OFFSET) |
2408 (((u32)(pAcParam->f.Ecw.f.ECWmax)) << AC_PARAM_ECW_MAX_OFFSET) |
2409 (((u32)(pAcParam->f.Ecw.f.ECWmin)) << AC_PARAM_ECW_MIN_OFFSET) |
2410 (((u32)u1bAIFS) << AC_PARAM_AIFS_OFFSET));
2411
2412 switch (eACI) {
2413 case AC1_BK:
2414 write_nic_dword(dev, AC_BK_PARAM, u4bAcParam);
2415 break;
2416 case AC0_BE:
2417 write_nic_dword(dev, AC_BE_PARAM, u4bAcParam);
2418 break;
2419 case AC2_VI:
2420 write_nic_dword(dev, AC_VI_PARAM, u4bAcParam);
2421 break;
2422 case AC3_VO:
2423 write_nic_dword(dev, AC_VO_PARAM, u4bAcParam);
2424 break;
2425 default:
2426 printk(KERN_WARNING "SetHwReg8185(): invalid ACI: %d !\n", eACI);
2427 break;
2428 }
2429 }
2430 ac_param += (sizeof(AC_PARAM));
2431 }
2432}
2433
2434void rtl8180_tx_irq_wq(struct work_struct *work);
2435void rtl8180_restart_wq(struct work_struct *work);
2436//void rtl8180_rq_tx_ack(struct work_struct *work);
2437void rtl8180_watch_dog_wq(struct work_struct *work);
2438void rtl8180_hw_wakeup_wq(struct work_struct *work);
2439void rtl8180_hw_sleep_wq(struct work_struct *work);
2440void rtl8180_sw_antenna_wq(struct work_struct *work);
2441void rtl8180_watch_dog(struct net_device *dev);
2442
2443void watch_dog_adaptive(unsigned long data)
2444{
2445 struct r8180_priv* priv = ieee80211_priv((struct net_device *)data);
2446
2447 if (!priv->up) {
2448 DMESG("<----watch_dog_adaptive():driver is not up!\n");
2449 return;
2450 }
2451
2452 // Tx High Power Mechanism.
2453 if (CheckHighPower((struct net_device *)data))
2454 queue_work(priv->ieee80211->wq, (void *)&priv->ieee80211->tx_pw_wq);
2455
2456 // Tx Power Tracking on 87SE.
2457 if (CheckTxPwrTracking((struct net_device *)data))
2458 TxPwrTracking87SE((struct net_device *)data);
2459
2460 // Perform DIG immediately.
2461 if (CheckDig((struct net_device *)data) == true)
2462 queue_work(priv->ieee80211->wq, (void *)&priv->ieee80211->hw_dig_wq);
2463 rtl8180_watch_dog((struct net_device *)data);
2464
2465 queue_work(priv->ieee80211->wq, (void *)&priv->ieee80211->GPIOChangeRFWorkItem);
2466
2467 priv->watch_dog_timer.expires = jiffies + MSECS(IEEE80211_WATCH_DOG_TIME);
2468 add_timer(&priv->watch_dog_timer);
2469}
2470
2471static CHANNEL_LIST ChannelPlan[] = {
2472 {{1,2,3,4,5,6,7,8,9,10,11,36,40,44,48,52,56,60,64},19}, //FCC
2473 {{1,2,3,4,5,6,7,8,9,10,11},11}, //IC
2474 {{1,2,3,4,5,6,7,8,9,10,11,12,13,36,40,44,48,52,56,60,64},21}, //ETSI
2475 {{1,2,3,4,5,6,7,8,9,10,11,12,13,36,40,44,48,52,56,60,64},21}, //Spain. Change to ETSI.
2476 {{1,2,3,4,5,6,7,8,9,10,11,12,13,36,40,44,48,52,56,60,64},21}, //France. Change to ETSI.
2477 {{14,36,40,44,48,52,56,60,64},9}, //MKK
2478 {{1,2,3,4,5,6,7,8,9,10,11,12,13,14, 36,40,44,48,52,56,60,64},22},//MKK1
2479 {{1,2,3,4,5,6,7,8,9,10,11,12,13,36,40,44,48,52,56,60,64},21}, //Israel.
2480 {{1,2,3,4,5,6,7,8,9,10,11,12,13,34,38,42,46},17}, // For 11a , TELEC
2481 {{1,2,3,4,5,6,7,8,9,10,11,12,13,14},14}, //For Global Domain. 1-11:active scan, 12-14 passive scan. //+YJ, 080626
2482 {{1,2,3,4,5,6,7,8,9,10,11,12,13},13} //world wide 13: ch1~ch11 active scan, ch12~13 passive //lzm add 080826
2483};
2484
2485static void rtl8180_set_channel_map(u8 channel_plan, struct ieee80211_device *ieee)
2486{
2487 int i;
2488
2489 //lzm add 080826
2490 ieee->MinPassiveChnlNum = MAX_CHANNEL_NUMBER+1;
2491 ieee->IbssStartChnl = 0;
2492
2493 switch (channel_plan) {
2494 case COUNTRY_CODE_FCC:
2495 case COUNTRY_CODE_IC:
2496 case COUNTRY_CODE_ETSI:
2497 case COUNTRY_CODE_SPAIN:
2498 case COUNTRY_CODE_FRANCE:
2499 case COUNTRY_CODE_MKK:
2500 case COUNTRY_CODE_MKK1:
2501 case COUNTRY_CODE_ISRAEL:
2502 case COUNTRY_CODE_TELEC:
2503 {
2504 Dot11d_Init(ieee);
2505 ieee->bGlobalDomain = false;
2506 if (ChannelPlan[channel_plan].Len != 0) {
2507 // Clear old channel map
2508 memset(GET_DOT11D_INFO(ieee)->channel_map, 0, sizeof(GET_DOT11D_INFO(ieee)->channel_map));
2509 // Set new channel map
2510 for (i = 0; i < ChannelPlan[channel_plan].Len; i++) {
2511 if (ChannelPlan[channel_plan].Channel[i] <= 14)
2512 GET_DOT11D_INFO(ieee)->channel_map[ChannelPlan[channel_plan].Channel[i]] = 1;
2513 }
2514 }
2515 break;
2516 }
2517 case COUNTRY_CODE_GLOBAL_DOMAIN:
2518 {
2519 GET_DOT11D_INFO(ieee)->bEnabled = 0;
2520 Dot11d_Reset(ieee);
2521 ieee->bGlobalDomain = true;
2522 break;
2523 }
2524 case COUNTRY_CODE_WORLD_WIDE_13_INDEX://lzm add 080826
2525 {
2526 ieee->MinPassiveChnlNum = 12;
2527 ieee->IbssStartChnl = 10;
2528 break;
2529 }
2530 default:
2531 {
2532 Dot11d_Init(ieee);
2533 ieee->bGlobalDomain = false;
2534 memset(GET_DOT11D_INFO(ieee)->channel_map, 0, sizeof(GET_DOT11D_INFO(ieee)->channel_map));
2535 for (i = 1; i <= 14; i++)
2536 GET_DOT11D_INFO(ieee)->channel_map[i] = 1;
2537 break;
2538 }
2539 }
2540}
2541
2542void GPIOChangeRFWorkItemCallBack(struct work_struct *work);
2543
2544//YJ,add,080828
2545static void rtl8180_statistics_init(struct Stats *pstats)
2546{
2547 memset(pstats, 0, sizeof(struct Stats));
2548}
2549
2550static void rtl8180_link_detect_init(plink_detect_t plink_detect)
2551{
2552 memset(plink_detect, 0, sizeof(link_detect_t));
2553 plink_detect->SlotNum = DEFAULT_SLOT_NUM;
2554}
2555//YJ,add,080828,end
2556
2557static void rtl8187se_eeprom_register_read(struct eeprom_93cx6 *eeprom)
2558{
2559 struct net_device *dev = eeprom->data;
2560 u8 reg = read_nic_byte(dev, EPROM_CMD);
2561
2562 eeprom->reg_data_in = reg & RTL818X_EEPROM_CMD_WRITE;
2563 eeprom->reg_data_out = reg & RTL818X_EEPROM_CMD_READ;
2564 eeprom->reg_data_clock = reg & RTL818X_EEPROM_CMD_CK;
2565 eeprom->reg_chip_select = reg & RTL818X_EEPROM_CMD_CS;
2566}
2567
2568static void rtl8187se_eeprom_register_write(struct eeprom_93cx6 *eeprom)
2569{
2570 struct net_device *dev = eeprom->data;
2571 u8 reg = 2 << 6;
2572
2573 if (eeprom->reg_data_in)
2574 reg |= RTL818X_EEPROM_CMD_WRITE;
2575 if (eeprom->reg_data_out)
2576 reg |= RTL818X_EEPROM_CMD_READ;
2577 if (eeprom->reg_data_clock)
2578 reg |= RTL818X_EEPROM_CMD_CK;
2579 if (eeprom->reg_chip_select)
2580 reg |= RTL818X_EEPROM_CMD_CS;
2581
2582 write_nic_byte(dev, EPROM_CMD, reg);
2583 read_nic_byte(dev, EPROM_CMD);
2584 udelay(10);
2585}
2586
2587short rtl8180_init(struct net_device *dev)
2588{
2589 struct r8180_priv *priv = ieee80211_priv(dev);
2590 u16 word;
2591 u16 version;
2592 u32 usValue;
2593 u16 tmpu16;
2594 int i, j;
2595 struct eeprom_93cx6 eeprom;
2596 u16 eeprom_val;
2597
2598 eeprom.data = dev;
2599 eeprom.register_read = rtl8187se_eeprom_register_read;
2600 eeprom.register_write = rtl8187se_eeprom_register_write;
2601 eeprom.width = PCI_EEPROM_WIDTH_93C46;
2602
2603 eeprom_93cx6_read(&eeprom, EEPROM_COUNTRY_CODE>>1, &eeprom_val);
2604 priv->channel_plan = eeprom_val & 0xFF;
2605 if (priv->channel_plan > COUNTRY_CODE_GLOBAL_DOMAIN) {
2606 printk("rtl8180_init:Error channel plan! Set to default.\n");
2607 priv->channel_plan = 0;
2608 }
2609
2610 DMESG("Channel plan is %d\n", priv->channel_plan);
2611 rtl8180_set_channel_map(priv->channel_plan, priv->ieee80211);
2612
2613 //FIXME: these constants are placed in a bad pleace.
2614 priv->txbuffsize = 2048;//1024;
2615 priv->txringcount = 32;//32;
2616 priv->rxbuffersize = 2048;//1024;
2617 priv->rxringcount = 64;//32;
2618 priv->txbeaconcount = 2;
2619 priv->rx_skb_complete = 1;
2620
2621 priv->RFChangeInProgress = false;
2622 priv->SetRFPowerStateInProgress = false;
2623 priv->RFProgType = 0;
2624 priv->bInHctTest = false;
2625
2626 priv->irq_enabled = 0;
2627
2628 rtl8180_statistics_init(&priv->stats);
2629 rtl8180_link_detect_init(&priv->link_detect);
2630
2631 priv->ack_tx_to_ieee = 0;
2632 priv->ieee80211->current_network.beacon_interval = DEFAULT_BEACONINTERVAL;
2633 priv->ieee80211->iw_mode = IW_MODE_INFRA;
2634 priv->ieee80211->softmac_features = IEEE_SOFTMAC_SCAN |
2635 IEEE_SOFTMAC_ASSOCIATE | IEEE_SOFTMAC_PROBERQ |
2636 IEEE_SOFTMAC_PROBERS | IEEE_SOFTMAC_TX_QUEUE;
2637 priv->ieee80211->active_scan = 1;
2638 priv->ieee80211->rate = 110; //11 mbps
2639 priv->ieee80211->modulation = IEEE80211_CCK_MODULATION;
2640 priv->ieee80211->host_encrypt = 1;
2641 priv->ieee80211->host_decrypt = 1;
2642 priv->ieee80211->sta_wake_up = rtl8180_hw_wakeup;
2643 priv->ieee80211->ps_request_tx_ack = rtl8180_rq_tx_ack;
2644 priv->ieee80211->enter_sleep_state = rtl8180_hw_sleep;
2645 priv->ieee80211->ps_is_queue_empty = rtl8180_is_tx_queue_empty;
2646
2647 priv->hw_wep = hwwep;
2648 priv->prism_hdr = 0;
2649 priv->dev = dev;
2650 priv->retry_rts = DEFAULT_RETRY_RTS;
2651 priv->retry_data = DEFAULT_RETRY_DATA;
2652 priv->RFChangeInProgress = false;
2653 priv->SetRFPowerStateInProgress = false;
2654 priv->RFProgType = 0;
2655 priv->bInHctTest = false;
2656 priv->bInactivePs = true;//false;
2657 priv->ieee80211->bInactivePs = priv->bInactivePs;
2658 priv->bSwRfProcessing = false;
2659 priv->eRFPowerState = eRfOff;
2660 priv->RfOffReason = 0;
2661 priv->LedStrategy = SW_LED_MODE0;
2662 priv->TxPollingTimes = 0;//lzm add 080826
2663 priv->bLeisurePs = true;
2664 priv->dot11PowerSaveMode = eActive;
2665 priv->AdMinCheckPeriod = 5;
2666 priv->AdMaxCheckPeriod = 10;
2667 priv->AdMaxRxSsThreshold = 30;//60->30
2668 priv->AdRxSsThreshold = 20;//50->20
2669 priv->AdCheckPeriod = priv->AdMinCheckPeriod;
2670 priv->AdTickCount = 0;
2671 priv->AdRxSignalStrength = -1;
2672 priv->RegSwAntennaDiversityMechanism = 0;
2673 priv->RegDefaultAntenna = 0;
2674 priv->SignalStrength = 0;
2675 priv->AdRxOkCnt = 0;
2676 priv->CurrAntennaIndex = 0;
2677 priv->AdRxSsBeforeSwitched = 0;
2678 init_timer(&priv->SwAntennaDiversityTimer);
2679 priv->SwAntennaDiversityTimer.data = (unsigned long)dev;
2680 priv->SwAntennaDiversityTimer.function = (void *)SwAntennaDiversityTimerCallback;
2681 priv->bDigMechanism = 1;
2682 priv->InitialGain = 6;
2683 priv->bXtalCalibration = false;
2684 priv->XtalCal_Xin = 0;
2685 priv->XtalCal_Xout = 0;
2686 priv->bTxPowerTrack = false;
2687 priv->ThermalMeter = 0;
2688 priv->FalseAlarmRegValue = 0;
2689 priv->RegDigOfdmFaUpTh = 0xc; // Upper threhold of OFDM false alarm, which is used in DIG.
2690 priv->DIG_NumberFallbackVote = 0;
2691 priv->DIG_NumberUpgradeVote = 0;
2692 priv->LastSignalStrengthInPercent = 0;
2693 priv->Stats_SignalStrength = 0;
2694 priv->LastRxPktAntenna = 0;
2695 priv->SignalQuality = 0; // in 0-100 index.
2696 priv->Stats_SignalQuality = 0;
2697 priv->RecvSignalPower = 0; // in dBm.
2698 priv->Stats_RecvSignalPower = 0;
2699 priv->AdMainAntennaRxOkCnt = 0;
2700 priv->AdAuxAntennaRxOkCnt = 0;
2701 priv->bHWAdSwitched = false;
2702 priv->bRegHighPowerMechanism = true;
2703 priv->RegHiPwrUpperTh = 77;
2704 priv->RegHiPwrLowerTh = 75;
2705 priv->RegRSSIHiPwrUpperTh = 70;
2706 priv->RegRSSIHiPwrLowerTh = 20;
2707 priv->bCurCCKPkt = false;
2708 priv->UndecoratedSmoothedSS = -1;
2709 priv->bToUpdateTxPwr = false;
2710 priv->CurCCKRSSI = 0;
2711 priv->RxPower = 0;
2712 priv->RSSI = 0;
2713 priv->NumTxOkTotal = 0;
2714 priv->NumTxUnicast = 0;
2715 priv->keepAliveLevel = DEFAULT_KEEP_ALIVE_LEVEL;
2716 priv->PowerProfile = POWER_PROFILE_AC;
2717 priv->CurrRetryCnt = 0;
2718 priv->LastRetryCnt = 0;
2719 priv->LastTxokCnt = 0;
2720 priv->LastRxokCnt = 0;
2721 priv->LastRetryRate = 0;
2722 priv->bTryuping = 0;
2723 priv->CurrTxRate = 0;
2724 priv->CurrRetryRate = 0;
2725 priv->TryupingCount = 0;
2726 priv->TryupingCountNoData = 0;
2727 priv->TryDownCountLowData = 0;
2728 priv->LastTxOKBytes = 0;
2729 priv->LastFailTxRate = 0;
2730 priv->LastFailTxRateSS = 0;
2731 priv->FailTxRateCount = 0;
2732 priv->LastTxThroughput = 0;
2733 priv->NumTxOkBytesTotal = 0;
2734 priv->ForcedDataRate = 0;
2735 priv->RegBModeGainStage = 1;
2736
2737 priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
2738 spin_lock_init(&priv->irq_lock);
2739 spin_lock_init(&priv->irq_th_lock);
2740 spin_lock_init(&priv->tx_lock);
2741 spin_lock_init(&priv->ps_lock);
2742 spin_lock_init(&priv->rf_ps_lock);
2743 sema_init(&priv->wx_sem, 1);
2744 sema_init(&priv->rf_state, 1);
2745 INIT_WORK(&priv->reset_wq, (void *)rtl8180_restart_wq);
2746 INIT_WORK(&priv->tx_irq_wq, (void *)rtl8180_tx_irq_wq);
2747 INIT_DELAYED_WORK(&priv->ieee80211->hw_wakeup_wq,
2748 (void *)rtl8180_hw_wakeup_wq);
2749 INIT_DELAYED_WORK(&priv->ieee80211->hw_sleep_wq,
2750 (void *)rtl8180_hw_sleep_wq);
2751 INIT_WORK(&priv->ieee80211->wmm_param_update_wq,
2752 (void *)rtl8180_wmm_param_update);
2753 INIT_DELAYED_WORK(&priv->ieee80211->rate_adapter_wq,
2754 (void *)rtl8180_rate_adapter);
2755 INIT_DELAYED_WORK(&priv->ieee80211->hw_dig_wq,
2756 (void *)rtl8180_hw_dig_wq);
2757 INIT_DELAYED_WORK(&priv->ieee80211->tx_pw_wq,
2758 (void *)rtl8180_tx_pw_wq);
2759 INIT_DELAYED_WORK(&priv->ieee80211->GPIOChangeRFWorkItem,
2760 (void *) GPIOChangeRFWorkItemCallBack);
2761 tasklet_init(&priv->irq_rx_tasklet,
2762 (void(*)(unsigned long)) rtl8180_irq_rx_tasklet,
2763 (unsigned long)priv);
2764
2765 init_timer(&priv->watch_dog_timer);
2766 priv->watch_dog_timer.data = (unsigned long)dev;
2767 priv->watch_dog_timer.function = watch_dog_adaptive;
2768
2769 init_timer(&priv->rateadapter_timer);
2770 priv->rateadapter_timer.data = (unsigned long)dev;
2771 priv->rateadapter_timer.function = timer_rate_adaptive;
2772 priv->RateAdaptivePeriod = RATE_ADAPTIVE_TIMER_PERIOD;
2773 priv->bEnhanceTxPwr = false;
2774
2775 priv->ieee80211->softmac_hard_start_xmit = rtl8180_hard_start_xmit;
2776 priv->ieee80211->set_chan = rtl8180_set_chan;
2777 priv->ieee80211->link_change = rtl8180_link_change;
2778 priv->ieee80211->softmac_data_hard_start_xmit = rtl8180_hard_data_xmit;
2779 priv->ieee80211->data_hard_stop = rtl8180_data_hard_stop;
2780 priv->ieee80211->data_hard_resume = rtl8180_data_hard_resume;
2781
2782 priv->ieee80211->init_wmmparam_flag = 0;
2783
2784 priv->ieee80211->start_send_beacons = rtl8180_start_tx_beacon;
2785 priv->ieee80211->stop_send_beacons = rtl8180_beacon_tx_disable;
2786 priv->ieee80211->fts = DEFAULT_FRAG_THRESHOLD;
2787
2788 priv->MWIEnable = 0;
2789
2790 priv->ShortRetryLimit = 7;
2791 priv->LongRetryLimit = 7;
2792 priv->EarlyRxThreshold = 7;
2793
2794 priv->CSMethod = (0x01 << 29);
2795
2796 priv->TransmitConfig = TCR_DurProcMode_OFFSET |
2797 (7<<TCR_MXDMA_OFFSET) |
2798 (priv->ShortRetryLimit<<TCR_SRL_OFFSET) |
2799 (priv->LongRetryLimit<<TCR_LRL_OFFSET) |
2800 (0 ? TCR_SAT : 0);
2801
2802 priv->ReceiveConfig = RCR_AMF | RCR_ADF | RCR_ACF |
2803 RCR_AB | RCR_AM | RCR_APM |
2804 (7<<RCR_MXDMA_OFFSET) |
2805 (priv->EarlyRxThreshold<<RCR_FIFO_OFFSET) |
2806 (priv->EarlyRxThreshold == 7 ?
2807 RCR_ONLYERLPKT : 0);
2808
2809 priv->IntrMask = IMR_TMGDOK | IMR_TBDER | IMR_THPDER |
2810 IMR_THPDER | IMR_THPDOK |
2811 IMR_TVODER | IMR_TVODOK |
2812 IMR_TVIDER | IMR_TVIDOK |
2813 IMR_TBEDER | IMR_TBEDOK |
2814 IMR_TBKDER | IMR_TBKDOK |
2815 IMR_RDU |
2816 IMR_RER | IMR_ROK |
2817 IMR_RQoSOK;
2818
2819 priv->InitialGain = 6;
2820
2821 DMESG("MAC controller is a RTL8187SE b/g");
2822 priv->phy_ver = 2;
2823
2824 priv->ieee80211->modulation |= IEEE80211_OFDM_MODULATION;
2825 priv->ieee80211->short_slot = 1;
2826
2827 // just for sync 85
2828 priv->enable_gpio0 = 0;
2829
2830 eeprom_93cx6_read(&eeprom, EEPROM_SW_REVD_OFFSET, &eeprom_val);
2831 usValue = eeprom_val;
2832 DMESG("usValue is 0x%x\n", usValue);
2833 //3Read AntennaDiversity
2834
2835 // SW Antenna Diversity.
2836 if ((usValue & EEPROM_SW_AD_MASK) != EEPROM_SW_AD_ENABLE)
2837 priv->EEPROMSwAntennaDiversity = false;
2838 else
2839 priv->EEPROMSwAntennaDiversity = true;
2840
2841 // Default Antenna to use.
2842 if ((usValue & EEPROM_DEF_ANT_MASK) != EEPROM_DEF_ANT_1)
2843 priv->EEPROMDefaultAntenna1 = false;
2844 else
2845 priv->EEPROMDefaultAntenna1 = true;
2846
2847 if (priv->RegSwAntennaDiversityMechanism == 0) // Auto
2848 /* 0: default from EEPROM. */
2849 priv->bSwAntennaDiverity = priv->EEPROMSwAntennaDiversity;
2850 else
2851 /* 1:disable antenna diversity, 2: enable antenna diversity. */
2852 priv->bSwAntennaDiverity = ((priv->RegSwAntennaDiversityMechanism == 1) ? false : true);
2853
2854 if (priv->RegDefaultAntenna == 0)
2855 /* 0: default from EEPROM. */
2856 priv->bDefaultAntenna1 = priv->EEPROMDefaultAntenna1;
2857 else
2858 /* 1: main, 2: aux. */
2859 priv->bDefaultAntenna1 = ((priv->RegDefaultAntenna == 2) ? true : false);
2860
2861 /* rtl8185 can calc plcp len in HW.*/
2862 priv->hw_plcp_len = 1;
2863
2864 priv->plcp_preamble_mode = 2;
2865 /*the eeprom type is stored in RCR register bit #6 */
2866 if (RCR_9356SEL & read_nic_dword(dev, RCR))
2867 priv->epromtype = EPROM_93c56;
2868 else
2869 priv->epromtype = EPROM_93c46;
2870
2871 eeprom_93cx6_multiread(&eeprom, 0x7, (__le16 *)
2872 dev->dev_addr, 3);
2873
2874 for (i = 1, j = 0; i < 14; i += 2, j++) {
2875 eeprom_93cx6_read(&eeprom, EPROM_TXPW_CH1_2 + j, &word);
2876 priv->chtxpwr[i] = word & 0xff;
2877 priv->chtxpwr[i+1] = (word & 0xff00)>>8;
2878 }
2879 for (i = 1, j = 0; i < 14; i += 2, j++) {
2880 eeprom_93cx6_read(&eeprom, EPROM_TXPW_OFDM_CH1_2 + j, &word);
2881 priv->chtxpwr_ofdm[i] = word & 0xff;
2882 priv->chtxpwr_ofdm[i+1] = (word & 0xff00) >> 8;
2883 }
2884
2885 /* 3Read crystal calibtration and thermal meter indication on 87SE. */
2886 eeprom_93cx6_read(&eeprom, EEPROM_RSV>>1, &tmpu16);
2887
2888 /* Crystal calibration for Xin and Xout resp. */
2889 priv->XtalCal_Xout = tmpu16 & EEPROM_XTAL_CAL_XOUT_MASK;
2890 priv->XtalCal_Xin = (tmpu16 & EEPROM_XTAL_CAL_XIN_MASK) >> 4;
2891 if ((tmpu16 & EEPROM_XTAL_CAL_ENABLE) >> 12)
2892 priv->bXtalCalibration = true;
2893
2894 /* Thermal meter reference indication. */
2895 priv->ThermalMeter = (u8)((tmpu16 & EEPROM_THERMAL_METER_MASK) >> 8);
2896 if ((tmpu16 & EEPROM_THERMAL_METER_ENABLE) >> 13)
2897 priv->bTxPowerTrack = true;
2898
2899 eeprom_93cx6_read(&eeprom, EPROM_TXPW_BASE, &word);
2900 priv->cck_txpwr_base = word & 0xf;
2901 priv->ofdm_txpwr_base = (word>>4) & 0xf;
2902
2903 eeprom_93cx6_read(&eeprom, EPROM_VERSION, &version);
2904 DMESG("EEPROM version %x", version);
2905 priv->rcr_csense = 3;
2906
2907 eeprom_93cx6_read(&eeprom, ENERGY_TRESHOLD, &eeprom_val);
2908 priv->cs_treshold = (eeprom_val & 0xff00) >> 8;
2909
2910 eeprom_93cx6_read(&eeprom, RFCHIPID, &eeprom_val);
2911 priv->rf_sleep = rtl8225z4_rf_sleep;
2912 priv->rf_wakeup = rtl8225z4_rf_wakeup;
2913 DMESGW("**PLEASE** REPORT SUCCESSFUL/UNSUCCESSFUL TO Realtek!");
2914
2915 priv->rf_close = rtl8225z2_rf_close;
2916 priv->rf_init = rtl8225z2_rf_init;
2917 priv->rf_set_chan = rtl8225z2_rf_set_chan;
2918 priv->rf_set_sens = NULL;
2919
2920 if (0 != alloc_rx_desc_ring(dev, priv->rxbuffersize, priv->rxringcount))
2921 return -ENOMEM;
2922
2923 if (0 != alloc_tx_desc_ring(dev, priv->txbuffsize, priv->txringcount,
2924 TX_MANAGEPRIORITY_RING_ADDR))
2925 return -ENOMEM;
2926
2927 if (0 != alloc_tx_desc_ring(dev, priv->txbuffsize, priv->txringcount,
2928 TX_BKPRIORITY_RING_ADDR))
2929 return -ENOMEM;
2930
2931 if (0 != alloc_tx_desc_ring(dev, priv->txbuffsize, priv->txringcount,
2932 TX_BEPRIORITY_RING_ADDR))
2933 return -ENOMEM;
2934
2935 if (0 != alloc_tx_desc_ring(dev, priv->txbuffsize, priv->txringcount,
2936 TX_VIPRIORITY_RING_ADDR))
2937 return -ENOMEM;
2938
2939 if (0 != alloc_tx_desc_ring(dev, priv->txbuffsize, priv->txringcount,
2940 TX_VOPRIORITY_RING_ADDR))
2941 return -ENOMEM;
2942
2943 if (0 != alloc_tx_desc_ring(dev, priv->txbuffsize, priv->txringcount,
2944 TX_HIGHPRIORITY_RING_ADDR))
2945 return -ENOMEM;
2946
2947 if (0 != alloc_tx_desc_ring(dev, priv->txbuffsize, priv->txbeaconcount,
2948 TX_BEACON_RING_ADDR))
2949 return -ENOMEM;
2950
2951 if (request_irq(dev->irq, (void *)rtl8180_interrupt, IRQF_SHARED, dev->name, dev)) {
2952 DMESGE("Error allocating IRQ %d", dev->irq);
2953 return -1;
2954 } else {
2955 priv->irq = dev->irq;
2956 DMESG("IRQ %d", dev->irq);
2957 }
2958
2959 return 0;
2960}
2961
2962void rtl8180_no_hw_wep(struct net_device *dev)
2963{
2964}
2965
2966void rtl8180_set_hw_wep(struct net_device *dev)
2967{
2968 struct r8180_priv *priv = ieee80211_priv(dev);
2969 u8 pgreg;
2970 u8 security;
2971 u32 key0_word4;
2972
2973 pgreg = read_nic_byte(dev, PGSELECT);
2974 write_nic_byte(dev, PGSELECT, pgreg & ~(1<<PGSELECT_PG_SHIFT));
2975
2976 key0_word4 = read_nic_dword(dev, KEY0+4+4+4);
2977 key0_word4 &= ~0xff;
2978 key0_word4 |= priv->key0[3] & 0xff;
2979 write_nic_dword(dev, KEY0, (priv->key0[0]));
2980 write_nic_dword(dev, KEY0+4, (priv->key0[1]));
2981 write_nic_dword(dev, KEY0+4+4, (priv->key0[2]));
2982 write_nic_dword(dev, KEY0+4+4+4, (key0_word4));
2983
2984 security = read_nic_byte(dev, SECURITY);
2985 security |= (1<<SECURITY_WEP_TX_ENABLE_SHIFT);
2986 security |= (1<<SECURITY_WEP_RX_ENABLE_SHIFT);
2987 security &= ~SECURITY_ENCRYP_MASK;
2988 security |= (SECURITY_ENCRYP_104<<SECURITY_ENCRYP_SHIFT);
2989
2990 write_nic_byte(dev, SECURITY, security);
2991
2992 DMESG("key %x %x %x %x", read_nic_dword(dev, KEY0+4+4+4),
2993 read_nic_dword(dev, KEY0+4+4), read_nic_dword(dev, KEY0+4),
2994 read_nic_dword(dev, KEY0));
2995}
2996
2997
2998void rtl8185_rf_pins_enable(struct net_device *dev)
2999{
3000// u16 tmp;
3001// tmp = read_nic_word(dev, RFPinsEnable);
3002 write_nic_word(dev, RFPinsEnable, 0x1fff);// | tmp);
3003}
3004
3005void rtl8185_set_anaparam2(struct net_device *dev, u32 a)
3006{
3007 u8 conf3;
3008
3009 rtl8180_set_mode(dev, EPROM_CMD_CONFIG);
3010
3011 conf3 = read_nic_byte(dev, CONFIG3);
3012 write_nic_byte(dev, CONFIG3, conf3 | (1<<CONFIG3_ANAPARAM_W_SHIFT));
3013 write_nic_dword(dev, ANAPARAM2, a);
3014
3015 conf3 = read_nic_byte(dev, CONFIG3);
3016 write_nic_byte(dev, CONFIG3, conf3 & ~(1<<CONFIG3_ANAPARAM_W_SHIFT));
3017 rtl8180_set_mode(dev, EPROM_CMD_NORMAL);
3018}
3019
3020void rtl8180_set_anaparam(struct net_device *dev, u32 a)
3021{
3022 u8 conf3;
3023
3024 rtl8180_set_mode(dev, EPROM_CMD_CONFIG);
3025
3026 conf3 = read_nic_byte(dev, CONFIG3);
3027 write_nic_byte(dev, CONFIG3, conf3 | (1<<CONFIG3_ANAPARAM_W_SHIFT));
3028 write_nic_dword(dev, ANAPARAM, a);
3029
3030 conf3 = read_nic_byte(dev, CONFIG3);
3031 write_nic_byte(dev, CONFIG3, conf3 & ~(1<<CONFIG3_ANAPARAM_W_SHIFT));
3032 rtl8180_set_mode(dev, EPROM_CMD_NORMAL);
3033}
3034
3035void rtl8185_tx_antenna(struct net_device *dev, u8 ant)
3036{
3037 write_nic_byte(dev, TX_ANTENNA, ant);
3038 force_pci_posting(dev);
3039 mdelay(1);
3040}
3041
3042void rtl8185_write_phy(struct net_device *dev, u8 adr, u32 data)
3043{
3044 u32 phyw;
3045
3046 adr |= 0x80;
3047
3048 phyw = ((data<<8) | adr);
3049
3050 // Note that, we must write 0xff7c after 0x7d-0x7f to write BB register.
3051 write_nic_byte(dev, 0x7f, ((phyw & 0xff000000) >> 24));
3052 write_nic_byte(dev, 0x7e, ((phyw & 0x00ff0000) >> 16));
3053 write_nic_byte(dev, 0x7d, ((phyw & 0x0000ff00) >> 8));
3054 write_nic_byte(dev, 0x7c, ((phyw & 0x000000ff)));
3055
3056 /* this is ok to fail when we write AGC table. check for AGC table might be
3057 * done by masking with 0x7f instead of 0xff
3058 */
3059 //if(phyr != (data&0xff)) DMESGW("Phy write timeout %x %x %x", phyr, data,adr);
3060}
3061
3062inline void write_phy_ofdm(struct net_device *dev, u8 adr, u32 data)
3063{
3064 data = data & 0xff;
3065 rtl8185_write_phy(dev, adr, data);
3066}
3067
3068void write_phy_cck(struct net_device *dev, u8 adr, u32 data)
3069{
3070 data = data & 0xff;
3071 rtl8185_write_phy(dev, adr, data | 0x10000);
3072}
3073
3074void rtl8185_set_rate(struct net_device *dev)
3075{
3076 int i;
3077 u16 word;
3078 int basic_rate, min_rr_rate, max_rr_rate;
3079
3080 basic_rate = ieeerate2rtlrate(240);
3081 min_rr_rate = ieeerate2rtlrate(60);
3082 max_rr_rate = ieeerate2rtlrate(240);
3083
3084 write_nic_byte(dev, RESP_RATE,
3085 max_rr_rate<<MAX_RESP_RATE_SHIFT | min_rr_rate<<MIN_RESP_RATE_SHIFT);
3086
3087 word = read_nic_word(dev, BRSR);
3088 word &= ~BRSR_MBR_8185;
3089
3090 for (i = 0; i <= basic_rate; i++)
3091 word |= (1<<i);
3092
3093 write_nic_word(dev, BRSR, word);
3094}
3095
3096void rtl8180_adapter_start(struct net_device *dev)
3097{
3098 struct r8180_priv *priv = ieee80211_priv(dev);
3099
3100 rtl8180_rtx_disable(dev);
3101 rtl8180_reset(dev);
3102
3103 /* enable beacon timeout, beacon TX ok and err
3104 * LP tx ok and err, HP TX ok and err, NP TX ok and err,
3105 * RX ok and ERR, and GP timer */
3106 priv->irq_mask = 0x6fcf;
3107
3108 priv->dma_poll_mask = 0;
3109
3110 rtl8180_beacon_tx_disable(dev);
3111
3112 rtl8180_set_mode(dev, EPROM_CMD_CONFIG);
3113 write_nic_dword(dev, MAC0, ((u32 *)dev->dev_addr)[0]);
3114 write_nic_word(dev, MAC4, ((u32 *)dev->dev_addr)[1] & 0xffff);
3115 rtl8180_set_mode(dev, EPROM_CMD_NORMAL);
3116
3117 rtl8180_update_msr(dev);
3118
3119 /* These might be unnecessary since we do in rx_enable / tx_enable */
3120 fix_rx_fifo(dev);
3121 fix_tx_fifo(dev);
3122
3123 rtl8180_set_mode(dev, EPROM_CMD_CONFIG);
3124
3125 /*
3126 The following is very strange. seems to be that 1 means test mode,
3127 but we need to acknolwledges the nic when a packet is ready
3128 although we set it to 0
3129 */
3130
3131 write_nic_byte(dev,
3132 CONFIG2, read_nic_byte(dev, CONFIG2) & ~\
3133 (1<<CONFIG2_DMA_POLLING_MODE_SHIFT));
3134 //^the nic isn't in test mode
3135 write_nic_byte(dev,
3136 CONFIG2, read_nic_byte(dev, CONFIG2)|(1<<4));
3137
3138 rtl8180_set_mode(dev, EPROM_CMD_NORMAL);
3139
3140 write_nic_dword(dev, INT_TIMEOUT, 0);
3141
3142 write_nic_byte(dev, WPA_CONFIG, 0);
3143
3144 rtl8180_no_hw_wep(dev);
3145
3146 rtl8185_set_rate(dev);
3147 write_nic_byte(dev, RATE_FALLBACK, 0x81);
3148
3149 write_nic_byte(dev, GP_ENABLE, read_nic_byte(dev, GP_ENABLE) & ~(1<<6));
3150
3151 /*FIXME cfg 3 ClkRun enable - isn't it ReadOnly ? */
3152 rtl8180_set_mode(dev, EPROM_CMD_CONFIG);
3153 write_nic_byte(dev, CONFIG3, read_nic_byte(dev, CONFIG3)
3154 | (1 << CONFIG3_CLKRUN_SHIFT));
3155 rtl8180_set_mode(dev, EPROM_CMD_NORMAL);
3156
3157 priv->rf_init(dev);
3158
3159 if (priv->rf_set_sens != NULL)
3160 priv->rf_set_sens(dev, priv->sens);
3161 rtl8180_irq_enable(dev);
3162
3163 netif_start_queue(dev);
3164}
3165
3166/* this configures registers for beacon tx and enables it via
3167 * rtl8180_beacon_tx_enable(). rtl8180_beacon_tx_disable() might
3168 * be used to stop beacon transmission
3169 */
3170void rtl8180_start_tx_beacon(struct net_device *dev)
3171{
3172 u16 word;
3173
3174 DMESG("Enabling beacon TX");
3175 rtl8180_prepare_beacon(dev);
3176 rtl8180_irq_disable(dev);
3177 rtl8180_beacon_tx_enable(dev);
3178
3179 word = read_nic_word(dev, AtimWnd) & ~AtimWnd_AtimWnd;
3180 write_nic_word(dev, AtimWnd, word); // word |=
3181
3182 word = read_nic_word(dev, BintrItv);
3183 word &= ~BintrItv_BintrItv;
3184 word |= 1000;/*priv->ieee80211->current_network.beacon_interval *
3185 ((priv->txbeaconcount > 1)?(priv->txbeaconcount-1):1);
3186 // FIXME: check if correct ^^ worked with 0x3e8;
3187 */
3188 write_nic_word(dev, BintrItv, word);
3189
3190 rtl8180_set_mode(dev, EPROM_CMD_NORMAL);
3191
3192 rtl8185b_irq_enable(dev);
3193}
3194
3195static struct net_device_stats *rtl8180_stats(struct net_device *dev)
3196{
3197 struct r8180_priv *priv = ieee80211_priv(dev);
3198
3199 return &priv->ieee80211->stats;
3200}
3201//
3202// Change current and default preamble mode.
3203//
3204bool
3205MgntActSet_802_11_PowerSaveMode(
3206 struct r8180_priv *priv,
3207 RT_PS_MODE rtPsMode
3208)
3209{
3210 // Currently, we do not change power save mode on IBSS mode.
3211 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3212 return false;
3213
3214 priv->ieee80211->ps = rtPsMode;
3215
3216 return true;
3217}
3218
3219void LeisurePSEnter(struct r8180_priv *priv)
3220{
3221 if (priv->bLeisurePs) {
3222 if (priv->ieee80211->ps == IEEE80211_PS_DISABLED)
3223 MgntActSet_802_11_PowerSaveMode(priv, IEEE80211_PS_MBCAST|IEEE80211_PS_UNICAST);//IEEE80211_PS_ENABLE
3224 }
3225}
3226
3227void LeisurePSLeave(struct r8180_priv *priv)
3228{
3229 if (priv->bLeisurePs) {
3230 if (priv->ieee80211->ps != IEEE80211_PS_DISABLED)
3231 MgntActSet_802_11_PowerSaveMode(priv, IEEE80211_PS_DISABLED);
3232 }
3233}
3234
3235void rtl8180_hw_wakeup_wq(struct work_struct *work)
3236{
3237 struct delayed_work *dwork = to_delayed_work(work);
3238 struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, hw_wakeup_wq);
3239 struct net_device *dev = ieee->dev;
3240
3241 rtl8180_hw_wakeup(dev);
3242}
3243
3244void rtl8180_hw_sleep_wq(struct work_struct *work)
3245{
3246 struct delayed_work *dwork = to_delayed_work(work);
3247 struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, hw_sleep_wq);
3248 struct net_device *dev = ieee->dev;
3249
3250 rtl8180_hw_sleep_down(dev);
3251}
3252
3253static void MgntLinkKeepAlive(struct r8180_priv *priv)
3254{
3255 if (priv->keepAliveLevel == 0)
3256 return;
3257
3258 if (priv->ieee80211->state == IEEE80211_LINKED) {
3259 //
3260 // Keep-Alive.
3261 //
3262
3263 if ((priv->keepAliveLevel == 2) ||
3264 (priv->link_detect.LastNumTxUnicast == priv->NumTxUnicast &&
3265 priv->link_detect.LastNumRxUnicast == priv->ieee80211->NumRxUnicast)
3266 ) {
3267 priv->link_detect.IdleCount++;
3268
3269 //
3270 // Send a Keep-Alive packet packet to AP if we had been idle for a while.
3271 //
3272 if (priv->link_detect.IdleCount >= ((KEEP_ALIVE_INTERVAL / CHECK_FOR_HANG_PERIOD)-1)) {
3273 priv->link_detect.IdleCount = 0;
3274 ieee80211_sta_ps_send_null_frame(priv->ieee80211, false);
3275 }
3276 } else {
3277 priv->link_detect.IdleCount = 0;
3278 }
3279 priv->link_detect.LastNumTxUnicast = priv->NumTxUnicast;
3280 priv->link_detect.LastNumRxUnicast = priv->ieee80211->NumRxUnicast;
3281 }
3282}
3283
3284static u8 read_acadapter_file(char *filename);
3285
3286void rtl8180_watch_dog(struct net_device *dev)
3287{
3288 struct r8180_priv *priv = ieee80211_priv(dev);
3289 bool bEnterPS = false;
3290 bool bBusyTraffic = false;
3291 u32 TotalRxNum = 0;
3292 u16 SlotIndex = 0;
3293 u16 i = 0;
3294 if (priv->ieee80211->actscanning == false) {
3295 if ((priv->ieee80211->iw_mode != IW_MODE_ADHOC) && (priv->ieee80211->state == IEEE80211_NOLINK) && (priv->ieee80211->beinretry == false) && (priv->eRFPowerState == eRfOn))
3296 IPSEnter(dev);
3297 }
3298 //YJ,add,080828,for link state check
3299 if ((priv->ieee80211->state == IEEE80211_LINKED) && (priv->ieee80211->iw_mode == IW_MODE_INFRA)) {
3300 SlotIndex = (priv->link_detect.SlotIndex++) % priv->link_detect.SlotNum;
3301 priv->link_detect.RxFrameNum[SlotIndex] = priv->ieee80211->NumRxDataInPeriod + priv->ieee80211->NumRxBcnInPeriod;
3302 for (i = 0; i < priv->link_detect.SlotNum; i++)
3303 TotalRxNum += priv->link_detect.RxFrameNum[i];
3304
3305 if (TotalRxNum == 0) {
3306 priv->ieee80211->state = IEEE80211_ASSOCIATING;
3307 queue_work(priv->ieee80211->wq, &priv->ieee80211->associate_procedure_wq);
3308 }
3309 }
3310
3311 //YJ,add,080828,for KeepAlive
3312 MgntLinkKeepAlive(priv);
3313
3314 //YJ,add,080828,for LPS
3315 if (priv->PowerProfile == POWER_PROFILE_BATTERY)
3316 priv->bLeisurePs = true;
3317 else if (priv->PowerProfile == POWER_PROFILE_AC) {
3318 LeisurePSLeave(priv);
3319 priv->bLeisurePs = false;
3320 }
3321
3322 if (priv->ieee80211->state == IEEE80211_LINKED) {
3323 priv->link_detect.NumRxOkInPeriod = priv->ieee80211->NumRxDataInPeriod;
3324 if (priv->link_detect.NumRxOkInPeriod > 666 ||
3325 priv->link_detect.NumTxOkInPeriod > 666) {
3326 bBusyTraffic = true;
3327 }
3328 if (((priv->link_detect.NumRxOkInPeriod + priv->link_detect.NumTxOkInPeriod) > 8)
3329 || (priv->link_detect.NumRxOkInPeriod > 2)) {
3330 bEnterPS = false;
3331 } else
3332 bEnterPS = true;
3333
3334 if (bEnterPS)
3335 LeisurePSEnter(priv);
3336 else
3337 LeisurePSLeave(priv);
3338 } else
3339 LeisurePSLeave(priv);
3340 priv->link_detect.bBusyTraffic = bBusyTraffic;
3341 priv->link_detect.NumRxOkInPeriod = 0;
3342 priv->link_detect.NumTxOkInPeriod = 0;
3343 priv->ieee80211->NumRxDataInPeriod = 0;
3344 priv->ieee80211->NumRxBcnInPeriod = 0;
3345}
3346
3347int _rtl8180_up(struct net_device *dev)
3348{
3349 struct r8180_priv *priv = ieee80211_priv(dev);
3350
3351 priv->up = 1;
3352
3353 DMESG("Bringing up iface");
3354 rtl8185b_adapter_start(dev);
3355 rtl8185b_rx_enable(dev);
3356 rtl8185b_tx_enable(dev);
3357 if (priv->bInactivePs) {
3358 if (priv->ieee80211->iw_mode == IW_MODE_ADHOC)
3359 IPSLeave(dev);
3360 }
3361 timer_rate_adaptive((unsigned long)dev);
3362 watch_dog_adaptive((unsigned long)dev);
3363 if (priv->bSwAntennaDiverity)
3364 SwAntennaDiversityTimerCallback(dev);
3365 ieee80211_softmac_start_protocol(priv->ieee80211);
3366 return 0;
3367}
3368
3369int rtl8180_open(struct net_device *dev)
3370{
3371 struct r8180_priv *priv = ieee80211_priv(dev);
3372 int ret;
3373
3374 down(&priv->wx_sem);
3375 ret = rtl8180_up(dev);
3376 up(&priv->wx_sem);
3377 return ret;
3378}
3379
3380int rtl8180_up(struct net_device *dev)
3381{
3382 struct r8180_priv *priv = ieee80211_priv(dev);
3383
3384 if (priv->up == 1)
3385 return -1;
3386
3387 return _rtl8180_up(dev);
3388}
3389
3390int rtl8180_close(struct net_device *dev)
3391{
3392 struct r8180_priv *priv = ieee80211_priv(dev);
3393 int ret;
3394
3395 down(&priv->wx_sem);
3396 ret = rtl8180_down(dev);
3397 up(&priv->wx_sem);
3398
3399 return ret;
3400}
3401
3402int rtl8180_down(struct net_device *dev)
3403{
3404 struct r8180_priv *priv = ieee80211_priv(dev);
3405
3406 if (priv->up == 0)
3407 return -1;
3408
3409 priv->up = 0;
3410
3411 ieee80211_softmac_stop_protocol(priv->ieee80211);
3412 /* FIXME */
3413 if (!netif_queue_stopped(dev))
3414 netif_stop_queue(dev);
3415 rtl8180_rtx_disable(dev);
3416 rtl8180_irq_disable(dev);
3417 del_timer_sync(&priv->watch_dog_timer);
3418 del_timer_sync(&priv->rateadapter_timer);
3419 cancel_delayed_work(&priv->ieee80211->rate_adapter_wq);
3420 cancel_delayed_work(&priv->ieee80211->hw_wakeup_wq);
3421 cancel_delayed_work(&priv->ieee80211->hw_sleep_wq);
3422 cancel_delayed_work(&priv->ieee80211->hw_dig_wq);
3423 cancel_delayed_work(&priv->ieee80211->tx_pw_wq);
3424 del_timer_sync(&priv->SwAntennaDiversityTimer);
3425 SetZebraRFPowerState8185(dev, eRfOff);
3426 memset(&(priv->ieee80211->current_network), 0, sizeof(struct ieee80211_network));
3427 priv->ieee80211->state = IEEE80211_NOLINK;
3428 return 0;
3429}
3430
3431void rtl8180_restart_wq(struct work_struct *work)
3432{
3433 struct r8180_priv *priv = container_of(work, struct r8180_priv, reset_wq);
3434 struct net_device *dev = priv->dev;
3435
3436 down(&priv->wx_sem);
3437
3438 rtl8180_commit(dev);
3439
3440 up(&priv->wx_sem);
3441}
3442
3443void rtl8180_restart(struct net_device *dev)
3444{
3445 struct r8180_priv *priv = ieee80211_priv(dev);
3446
3447 schedule_work(&priv->reset_wq);
3448}
3449
3450void rtl8180_commit(struct net_device *dev)
3451{
3452 struct r8180_priv *priv = ieee80211_priv(dev);
3453
3454 if (priv->up == 0)
3455 return ;
3456
3457 del_timer_sync(&priv->watch_dog_timer);
3458 del_timer_sync(&priv->rateadapter_timer);
3459 cancel_delayed_work(&priv->ieee80211->rate_adapter_wq);
3460 cancel_delayed_work(&priv->ieee80211->hw_wakeup_wq);
3461 cancel_delayed_work(&priv->ieee80211->hw_sleep_wq);
3462 cancel_delayed_work(&priv->ieee80211->hw_dig_wq);
3463 cancel_delayed_work(&priv->ieee80211->tx_pw_wq);
3464 del_timer_sync(&priv->SwAntennaDiversityTimer);
3465 ieee80211_softmac_stop_protocol(priv->ieee80211);
3466 rtl8180_irq_disable(dev);
3467 rtl8180_rtx_disable(dev);
3468 _rtl8180_up(dev);
3469}
3470
3471static void r8180_set_multicast(struct net_device *dev)
3472{
3473 struct r8180_priv *priv = ieee80211_priv(dev);
3474 short promisc;
3475
3476 promisc = (dev->flags & IFF_PROMISC) ? 1 : 0;
3477
3478 if (promisc != priv->promisc)
3479 rtl8180_restart(dev);
3480
3481 priv->promisc = promisc;
3482}
3483
3484int r8180_set_mac_adr(struct net_device *dev, void *mac)
3485{
3486 struct r8180_priv *priv = ieee80211_priv(dev);
3487 struct sockaddr *addr = mac;
3488
3489 down(&priv->wx_sem);
3490
3491 memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
3492
3493 if (priv->ieee80211->iw_mode == IW_MODE_MASTER)
3494 memcpy(priv->ieee80211->current_network.bssid, dev->dev_addr, ETH_ALEN);
3495
3496 if (priv->up) {
3497 rtl8180_down(dev);
3498 rtl8180_up(dev);
3499 }
3500
3501 up(&priv->wx_sem);
3502
3503 return 0;
3504}
3505
3506/* based on ipw2200 driver */
3507int rtl8180_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3508{
3509 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
3510 struct iwreq *wrq = (struct iwreq *) rq;
3511 int ret = -1;
3512
3513 switch (cmd) {
3514 case RTL_IOCTL_WPA_SUPPLICANT:
3515 ret = ieee80211_wpa_supplicant_ioctl(priv->ieee80211, &wrq->u.data);
3516 return ret;
3517 default:
3518 return -EOPNOTSUPP;
3519 }
3520
3521 return -EOPNOTSUPP;
3522}
3523
3524static const struct net_device_ops rtl8180_netdev_ops = {
3525 .ndo_open = rtl8180_open,
3526 .ndo_stop = rtl8180_close,
3527 .ndo_get_stats = rtl8180_stats,
3528 .ndo_tx_timeout = rtl8180_restart,
3529 .ndo_do_ioctl = rtl8180_ioctl,
3530 .ndo_set_multicast_list = r8180_set_multicast,
3531 .ndo_set_mac_address = r8180_set_mac_adr,
3532 .ndo_validate_addr = eth_validate_addr,
3533 .ndo_change_mtu = eth_change_mtu,
3534 .ndo_start_xmit = ieee80211_rtl_xmit,
3535};
3536
3537static int __devinit rtl8180_pci_probe(struct pci_dev *pdev,
3538 const struct pci_device_id *id)
3539{
3540 unsigned long ioaddr = 0;
3541 struct net_device *dev = NULL;
3542 struct r8180_priv *priv = NULL;
3543 u8 unit = 0;
3544
3545 unsigned long pmem_start, pmem_len, pmem_flags;
3546
3547 DMESG("Configuring chip resources");
3548
3549 if (pci_enable_device(pdev)) {
3550 DMESG("Failed to enable PCI device");
3551 return -EIO;
3552 }
3553
3554 pci_set_master(pdev);
3555 pci_set_dma_mask(pdev, 0xffffff00ULL);
3556 pci_set_consistent_dma_mask(pdev, 0xffffff00ULL);
3557 dev = alloc_ieee80211(sizeof(struct r8180_priv));
3558 if (!dev)
3559 return -ENOMEM;
3560 priv = ieee80211_priv(dev);
3561 priv->ieee80211 = netdev_priv(dev);
3562
3563 pci_set_drvdata(pdev, dev);
3564 SET_NETDEV_DEV(dev, &pdev->dev);
3565
3566 priv = ieee80211_priv(dev);
3567 priv->pdev = pdev;
3568
3569 pmem_start = pci_resource_start(pdev, 1);
3570 pmem_len = pci_resource_len(pdev, 1);
3571 pmem_flags = pci_resource_flags(pdev, 1);
3572
3573 if (!(pmem_flags & IORESOURCE_MEM)) {
3574 DMESG("region #1 not a MMIO resource, aborting");
3575 goto fail;
3576 }
3577
3578 if (!request_mem_region(pmem_start, pmem_len, RTL8180_MODULE_NAME)) {
3579 DMESG("request_mem_region failed!");
3580 goto fail;
3581 }
3582
3583 ioaddr = (unsigned long)ioremap_nocache(pmem_start, pmem_len);
3584 if (ioaddr == (unsigned long)NULL) {
3585 DMESG("ioremap failed!");
3586 goto fail1;
3587 }
3588
3589 dev->mem_start = ioaddr; // shared mem start
3590 dev->mem_end = ioaddr + pci_resource_len(pdev, 0); // shared mem end
3591
3592 pci_read_config_byte(pdev, 0x05, &unit);
3593 pci_write_config_byte(pdev, 0x05, unit & (~0x04));
3594
3595 dev->irq = pdev->irq;
3596 priv->irq = 0;
3597
3598 dev->netdev_ops = &rtl8180_netdev_ops;
3599 dev->wireless_handlers = &r8180_wx_handlers_def;
3600
3601 dev->type = ARPHRD_ETHER;
3602 dev->watchdog_timeo = HZ*3;
3603
3604 if (dev_alloc_name(dev, ifname) < 0) {
3605 DMESG("Oops: devname already taken! Trying wlan%%d...\n");
3606 ifname = "wlan%d";
3607 dev_alloc_name(dev, ifname);
3608 }
3609
3610 if (rtl8180_init(dev) != 0) {
3611 DMESG("Initialization failed");
3612 goto fail1;
3613 }
3614
3615 netif_carrier_off(dev);
3616
3617 register_netdev(dev);
3618
3619 rtl8180_proc_init_one(dev);
3620
3621 DMESG("Driver probe completed\n");
3622 return 0;
3623fail1:
3624 if (dev->mem_start != (unsigned long)NULL) {
3625 iounmap((void *)dev->mem_start);
3626 release_mem_region(pci_resource_start(pdev, 1),
3627 pci_resource_len(pdev, 1));
3628 }
3629fail:
3630 if (dev) {
3631 if (priv->irq) {
3632 free_irq(dev->irq, dev);
3633 dev->irq = 0;
3634 }
3635 free_ieee80211(dev);
3636 }
3637
3638 pci_disable_device(pdev);
3639
3640 DMESG("wlan driver load failed\n");
3641 pci_set_drvdata(pdev, NULL);
3642 return -ENODEV;
3643}
3644
3645static void __devexit rtl8180_pci_remove(struct pci_dev *pdev)
3646{
3647 struct r8180_priv *priv;
3648 struct net_device *dev = pci_get_drvdata(pdev);
3649
3650 if (dev) {
3651 unregister_netdev(dev);
3652
3653 priv = ieee80211_priv(dev);
3654
3655 rtl8180_proc_remove_one(dev);
3656 rtl8180_down(dev);
3657 priv->rf_close(dev);
3658 rtl8180_reset(dev);
3659 mdelay(10);
3660
3661 if (priv->irq) {
3662 DMESG("Freeing irq %d", dev->irq);
3663 free_irq(dev->irq, dev);
3664 priv->irq = 0;
3665 }
3666
3667 free_rx_desc_ring(dev);
3668 free_tx_desc_rings(dev);
3669
3670 if (dev->mem_start != (unsigned long)NULL) {
3671 iounmap((void *)dev->mem_start);
3672 release_mem_region(pci_resource_start(pdev, 1),
3673 pci_resource_len(pdev, 1));
3674 }
3675
3676 free_ieee80211(dev);
3677 }
3678 pci_disable_device(pdev);
3679
3680 DMESG("wlan driver removed\n");
3681}
3682
3683/* fun with the built-in ieee80211 stack... */
3684extern int ieee80211_crypto_init(void);
3685extern void ieee80211_crypto_deinit(void);
3686extern int ieee80211_crypto_tkip_init(void);
3687extern void ieee80211_crypto_tkip_exit(void);
3688extern int ieee80211_crypto_ccmp_init(void);
3689extern void ieee80211_crypto_ccmp_exit(void);
3690extern int ieee80211_crypto_wep_init(void);
3691extern void ieee80211_crypto_wep_exit(void);
3692
3693static int __init rtl8180_pci_module_init(void)
3694{
3695 int ret;
3696
3697 ret = ieee80211_crypto_init();
3698 if (ret) {
3699 printk(KERN_ERR "ieee80211_crypto_init() failed %d\n", ret);
3700 return ret;
3701 }
3702 ret = ieee80211_crypto_tkip_init();
3703 if (ret) {
3704 printk(KERN_ERR "ieee80211_crypto_tkip_init() failed %d\n", ret);
3705 return ret;
3706 }
3707 ret = ieee80211_crypto_ccmp_init();
3708 if (ret) {
3709 printk(KERN_ERR "ieee80211_crypto_ccmp_init() failed %d\n", ret);
3710 return ret;
3711 }
3712 ret = ieee80211_crypto_wep_init();
3713 if (ret) {
3714 printk(KERN_ERR "ieee80211_crypto_wep_init() failed %d\n", ret);
3715 return ret;
3716 }
3717
3718 printk(KERN_INFO "\nLinux kernel driver for RTL8180 / RTL8185 based WLAN cards\n");
3719 printk(KERN_INFO "Copyright (c) 2004-2005, Andrea Merello\n");
3720 DMESG("Initializing module");
3721 DMESG("Wireless extensions version %d", WIRELESS_EXT);
3722 rtl8180_proc_module_init();
3723
3724 if (pci_register_driver(&rtl8180_pci_driver)) {
3725 DMESG("No device found");
3726 return -ENODEV;
3727 }
3728 return 0;
3729}
3730
3731static void __exit rtl8180_pci_module_exit(void)
3732{
3733 pci_unregister_driver(&rtl8180_pci_driver);
3734 rtl8180_proc_module_remove();
3735 ieee80211_crypto_tkip_exit();
3736 ieee80211_crypto_ccmp_exit();
3737 ieee80211_crypto_wep_exit();
3738 ieee80211_crypto_deinit();
3739 DMESG("Exiting");
3740}
3741
3742void rtl8180_try_wake_queue(struct net_device *dev, int pri)
3743{
3744 unsigned long flags;
3745 short enough_desc;
3746 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
3747
3748 spin_lock_irqsave(&priv->tx_lock, flags);
3749 enough_desc = check_nic_enought_desc(dev, pri);
3750 spin_unlock_irqrestore(&priv->tx_lock, flags);
3751
3752 if (enough_desc)
3753 ieee80211_rtl_wake_queue(priv->ieee80211);
3754}
3755
3756void rtl8180_tx_isr(struct net_device *dev, int pri, short error)
3757{
3758 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
3759 u32 *tail; //tail virtual addr
3760 u32 *head; //head virtual addr
3761 u32 *begin;//start of ring virtual addr
3762 u32 *nicv; //nic pointer virtual addr
3763 u32 nic; //nic pointer physical addr
3764 u32 nicbegin;// start of ring physical addr
3765 unsigned long flag;
3766 /* physical addr are ok on 32 bits since we set DMA mask*/
3767 int offs;
3768 int j, i;
3769 int hd;
3770 if (error)
3771 priv->stats.txretry++; //tony 20060601
3772 spin_lock_irqsave(&priv->tx_lock, flag);
3773 switch (pri) {
3774 case MANAGE_PRIORITY:
3775 tail = priv->txmapringtail;
3776 begin = priv->txmapring;
3777 head = priv->txmapringhead;
3778 nic = read_nic_dword(dev, TX_MANAGEPRIORITY_RING_ADDR);
3779 nicbegin = priv->txmapringdma;
3780 break;
3781 case BK_PRIORITY:
3782 tail = priv->txbkpringtail;
3783 begin = priv->txbkpring;
3784 head = priv->txbkpringhead;
3785 nic = read_nic_dword(dev, TX_BKPRIORITY_RING_ADDR);
3786 nicbegin = priv->txbkpringdma;
3787 break;
3788 case BE_PRIORITY:
3789 tail = priv->txbepringtail;
3790 begin = priv->txbepring;
3791 head = priv->txbepringhead;
3792 nic = read_nic_dword(dev, TX_BEPRIORITY_RING_ADDR);
3793 nicbegin = priv->txbepringdma;
3794 break;
3795 case VI_PRIORITY:
3796 tail = priv->txvipringtail;
3797 begin = priv->txvipring;
3798 head = priv->txvipringhead;
3799 nic = read_nic_dword(dev, TX_VIPRIORITY_RING_ADDR);
3800 nicbegin = priv->txvipringdma;
3801 break;
3802 case VO_PRIORITY:
3803 tail = priv->txvopringtail;
3804 begin = priv->txvopring;
3805 head = priv->txvopringhead;
3806 nic = read_nic_dword(dev, TX_VOPRIORITY_RING_ADDR);
3807 nicbegin = priv->txvopringdma;
3808 break;
3809 case HI_PRIORITY:
3810 tail = priv->txhpringtail;
3811 begin = priv->txhpring;
3812 head = priv->txhpringhead;
3813 nic = read_nic_dword(dev, TX_HIGHPRIORITY_RING_ADDR);
3814 nicbegin = priv->txhpringdma;
3815 break;
3816
3817 default:
3818 spin_unlock_irqrestore(&priv->tx_lock, flag);
3819 return ;
3820 }
3821
3822 nicv = (u32 *)((nic - nicbegin) + (u8*)begin);
3823 if ((head <= tail && (nicv > tail || nicv < head)) ||
3824 (head > tail && (nicv > tail && nicv < head))) {
3825 DMESGW("nic has lost pointer");
3826 spin_unlock_irqrestore(&priv->tx_lock, flag);
3827 rtl8180_restart(dev);
3828 return;
3829 }
3830
3831 /* we check all the descriptors between the head and the nic,
3832 * but not the currently pointed by the nic (the next to be txed)
3833 * and the previous of the pointed (might be in process ??)
3834 */
3835 offs = (nic - nicbegin);
3836 offs = offs / 8 / 4;
3837 hd = (head - begin) / 8;
3838
3839 if (offs >= hd)
3840 j = offs - hd;
3841 else
3842 j = offs + (priv->txringcount-1-hd);
3843
3844 j -= 2;
3845 if (j < 0)
3846 j = 0;
3847
3848 for (i = 0; i < j; i++) {
3849 if ((*head) & (1<<31))
3850 break;
3851 if (((*head)&(0x10000000)) != 0) {
3852 priv->CurrRetryCnt += (u16)((*head) & (0x000000ff));
3853 if (!error)
3854 priv->NumTxOkTotal++;
3855 }
3856
3857 if (!error)
3858 priv->NumTxOkBytesTotal += (*(head+3)) & (0x00000fff);
3859
3860 *head = *head & ~(1<<31);
3861
3862 if ((head - begin)/8 == priv->txringcount-1)
3863 head = begin;
3864 else
3865 head += 8;
3866 }
3867
3868 /* the head has been moved to the last certainly TXed
3869 * (or at least processed by the nic) packet.
3870 * The driver take forcefully owning of all these packets
3871 * If the packet previous of the nic pointer has been
3872 * processed this doesn't matter: it will be checked
3873 * here at the next round. Anyway if no more packet are
3874 * TXed no memory leak occour at all.
3875 */
3876
3877 switch (pri) {
3878 case MANAGE_PRIORITY:
3879 priv->txmapringhead = head;
3880
3881 if (priv->ack_tx_to_ieee) {
3882 if (rtl8180_is_tx_queue_empty(dev)) {
3883 priv->ack_tx_to_ieee = 0;
3884 ieee80211_ps_tx_ack(priv->ieee80211, !error);
3885 }
3886 }
3887 break;
3888 case BK_PRIORITY:
3889 priv->txbkpringhead = head;
3890 break;
3891 case BE_PRIORITY:
3892 priv->txbepringhead = head;
3893 break;
3894 case VI_PRIORITY:
3895 priv->txvipringhead = head;
3896 break;
3897 case VO_PRIORITY:
3898 priv->txvopringhead = head;
3899 break;
3900 case HI_PRIORITY:
3901 priv->txhpringhead = head;
3902 break;
3903 }
3904
3905 spin_unlock_irqrestore(&priv->tx_lock, flag);
3906}
3907
3908void rtl8180_tx_irq_wq(struct work_struct *work)
3909{
3910 struct delayed_work *dwork = to_delayed_work(work);
3911 struct ieee80211_device * ieee = (struct ieee80211_device *)
3912 container_of(dwork, struct ieee80211_device, watch_dog_wq);
3913 struct net_device *dev = ieee->dev;
3914
3915 rtl8180_tx_isr(dev, MANAGE_PRIORITY, 0);
3916}
3917irqreturn_t rtl8180_interrupt(int irq, void *netdev, struct pt_regs *regs)
3918{
3919 struct net_device *dev = (struct net_device *) netdev;
3920 struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
3921 unsigned long flags;
3922 u32 inta;
3923
3924 /* We should return IRQ_NONE, but for now let me keep this */
3925 if (priv->irq_enabled == 0)
3926 return IRQ_HANDLED;
3927
3928 spin_lock_irqsave(&priv->irq_th_lock, flags);
3929
3930 //ISR: 4bytes
3931 inta = read_nic_dword(dev, ISR);// & priv->IntrMask;
3932 write_nic_dword(dev, ISR, inta); // reset int situation
3933
3934 priv->stats.shints++;
3935
3936 if (!inta) {
3937 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
3938 return IRQ_HANDLED;
3939 /*
3940 most probably we can safely return IRQ_NONE,
3941 but for now is better to avoid problems
3942 */
3943 }
3944
3945 if (inta == 0xffff) {
3946 /* HW disappared */
3947 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
3948 return IRQ_HANDLED;
3949 }
3950
3951 priv->stats.ints++;
3952
3953 if (!netif_running(dev)) {
3954 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
3955 return IRQ_HANDLED;
3956 }
3957
3958 if (inta & ISR_TimeOut)
3959 write_nic_dword(dev, TimerInt, 0);
3960
3961 if (inta & ISR_TBDOK)
3962 priv->stats.txbeacon++;
3963
3964 if (inta & ISR_TBDER)
3965 priv->stats.txbeaconerr++;
3966
3967 if (inta & IMR_TMGDOK)
3968 rtl8180_tx_isr(dev, MANAGE_PRIORITY, 0);
3969
3970 if (inta & ISR_THPDER) {
3971 priv->stats.txhperr++;
3972 rtl8180_tx_isr(dev, HI_PRIORITY, 1);
3973 priv->ieee80211->stats.tx_errors++;
3974 }
3975
3976 if (inta & ISR_THPDOK) { //High priority tx ok
3977 priv->link_detect.NumTxOkInPeriod++; //YJ,add,080828
3978 priv->stats.txhpokint++;
3979 rtl8180_tx_isr(dev, HI_PRIORITY, 0);
3980 }
3981
3982 if (inta & ISR_RER)
3983 priv->stats.rxerr++;
3984
3985 if (inta & ISR_TBKDER) { //corresponding to BK_PRIORITY
3986 priv->stats.txbkperr++;
3987 priv->ieee80211->stats.tx_errors++;
3988 rtl8180_tx_isr(dev, BK_PRIORITY, 1);
3989 rtl8180_try_wake_queue(dev, BE_PRIORITY);
3990 }
3991
3992 if (inta & ISR_TBEDER) { //corresponding to BE_PRIORITY
3993 priv->stats.txbeperr++;
3994 priv->ieee80211->stats.tx_errors++;
3995 rtl8180_tx_isr(dev, BE_PRIORITY, 1);
3996 rtl8180_try_wake_queue(dev, BE_PRIORITY);
3997 }
3998 if (inta & ISR_TNPDER) { //corresponding to VO_PRIORITY
3999 priv->stats.txnperr++;
4000 priv->ieee80211->stats.tx_errors++;
4001 rtl8180_tx_isr(dev, NORM_PRIORITY, 1);
4002 rtl8180_try_wake_queue(dev, NORM_PRIORITY);
4003 }
4004
4005 if (inta & ISR_TLPDER) { //corresponding to VI_PRIORITY
4006 priv->stats.txlperr++;
4007 priv->ieee80211->stats.tx_errors++;
4008 rtl8180_tx_isr(dev, LOW_PRIORITY, 1);
4009 rtl8180_try_wake_queue(dev, LOW_PRIORITY);
4010 }
4011
4012 if (inta & ISR_ROK) {
4013 priv->stats.rxint++;
4014 tasklet_schedule(&priv->irq_rx_tasklet);
4015 }
4016
4017 if (inta & ISR_RQoSOK) {
4018 priv->stats.rxint++;
4019 tasklet_schedule(&priv->irq_rx_tasklet);
4020 }
4021
4022 if (inta & ISR_BcnInt)
4023 rtl8180_prepare_beacon(dev);
4024
4025 if (inta & ISR_RDU) {
4026 DMESGW("No RX descriptor available");
4027 priv->stats.rxrdu++;
4028 tasklet_schedule(&priv->irq_rx_tasklet);
4029 }
4030
4031 if (inta & ISR_RXFOVW) {
4032 priv->stats.rxoverflow++;
4033 tasklet_schedule(&priv->irq_rx_tasklet);
4034 }
4035
4036 if (inta & ISR_TXFOVW)
4037 priv->stats.txoverflow++;
4038
4039 if (inta & ISR_TNPDOK) { //Normal priority tx ok
4040 priv->link_detect.NumTxOkInPeriod++; //YJ,add,080828
4041 priv->stats.txnpokint++;
4042 rtl8180_tx_isr(dev, NORM_PRIORITY, 0);
4043 }
4044
4045 if (inta & ISR_TLPDOK) { //Low priority tx ok
4046 priv->link_detect.NumTxOkInPeriod++; //YJ,add,080828
4047 priv->stats.txlpokint++;
4048 rtl8180_tx_isr(dev, LOW_PRIORITY, 0);
4049 rtl8180_try_wake_queue(dev, LOW_PRIORITY);
4050 }
4051
4052 if (inta & ISR_TBKDOK) { //corresponding to BK_PRIORITY
4053 priv->stats.txbkpokint++;
4054 priv->link_detect.NumTxOkInPeriod++; //YJ,add,080828
4055 rtl8180_tx_isr(dev, BK_PRIORITY, 0);
4056 rtl8180_try_wake_queue(dev, BE_PRIORITY);
4057 }
4058
4059 if (inta & ISR_TBEDOK) { //corresponding to BE_PRIORITY
4060 priv->stats.txbeperr++;
4061 priv->link_detect.NumTxOkInPeriod++; //YJ,add,080828
4062 rtl8180_tx_isr(dev, BE_PRIORITY, 0);
4063 rtl8180_try_wake_queue(dev, BE_PRIORITY);
4064 }
4065 force_pci_posting(dev);
4066 spin_unlock_irqrestore(&priv->irq_th_lock, flags);
4067
4068 return IRQ_HANDLED;
4069}
4070
4071void rtl8180_irq_rx_tasklet(struct r8180_priv *priv)
4072{
4073 rtl8180_rx(priv->dev);
4074}
4075
4076void GPIOChangeRFWorkItemCallBack(struct work_struct *work)
4077{
4078 struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, GPIOChangeRFWorkItem.work);
4079 struct net_device *dev = ieee->dev;
4080 struct r8180_priv *priv = ieee80211_priv(dev);
4081 u8 btPSR;
4082 u8 btConfig0;
4083 RT_RF_POWER_STATE eRfPowerStateToSet;
4084 bool bActuallySet = false;
4085
4086 char *argv[3];
4087 static char *RadioPowerPath = "/etc/acpi/events/RadioPower.sh";
4088 static char *envp[] = {"HOME=/", "TERM=linux", "PATH=/usr/bin:/bin", NULL};
4089 static int readf_count = 0;
4090
4091 if (readf_count % 10 == 0)
4092 priv->PowerProfile = read_acadapter_file("/proc/acpi/ac_adapter/AC0/state");
4093
4094 readf_count = (readf_count+1)%0xffff;
4095 /* We should turn off LED before polling FF51[4]. */
4096
4097 /* Turn off LED. */
4098 btPSR = read_nic_byte(dev, PSR);
4099 write_nic_byte(dev, PSR, (btPSR & ~BIT3));
4100
4101 /* It need to delay 4us suggested by Jong, 2008-01-16 */
4102 udelay(4);
4103
4104 /* HW radio On/Off according to the value of FF51[4](config0) */
4105 btConfig0 = btPSR = read_nic_byte(dev, CONFIG0);
4106
4107 eRfPowerStateToSet = (btConfig0 & BIT4) ? eRfOn : eRfOff;
4108
4109 /* Turn LED back on when radio enabled */
4110 if (eRfPowerStateToSet == eRfOn)
4111 write_nic_byte(dev, PSR, btPSR | BIT3);
4112
4113 if ((priv->ieee80211->bHwRadioOff == true) &&
4114 (eRfPowerStateToSet == eRfOn)) {
4115 priv->ieee80211->bHwRadioOff = false;
4116 bActuallySet = true;
4117 } else if ((priv->ieee80211->bHwRadioOff == false) &&
4118 (eRfPowerStateToSet == eRfOff)) {
4119 priv->ieee80211->bHwRadioOff = true;
4120 bActuallySet = true;
4121 }
4122
4123 if (bActuallySet) {
4124 MgntActSet_RF_State(dev, eRfPowerStateToSet, RF_CHANGE_BY_HW);
4125
4126 /* To update the UI status for Power status changed */
4127 if (priv->ieee80211->bHwRadioOff == true)
4128 argv[1] = "RFOFF";
4129 else
4130 argv[1] = "RFON";
4131 argv[0] = RadioPowerPath;
4132 argv[2] = NULL;
4133
4134 call_usermodehelper(RadioPowerPath, argv, envp, 1);
4135 }
4136}
4137
4138static u8 read_acadapter_file(char *filename)
4139{
4140 return 0;
4141}
4142
4143module_init(rtl8180_pci_module_init);
4144module_exit(rtl8180_pci_module_exit);
Clone of davem's net-next-2.6 tree