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Merge remote-tracking branches 'spi/fix/img-spfi' and 'spi/fix/msiof' into spi-linus
[mirror_ubuntu-artful-kernel.git] / drivers / staging / vt6655 / device_main.c
1 /*
2 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * File: device_main.c
20 *
21 * Purpose: driver entry for initial, open, close, tx and rx.
22 *
23 * Author: Lyndon Chen
24 *
25 * Date: Jan 8, 2003
26 *
27 * Functions:
28 *
29 * vt6655_probe - module initial (insmod) driver entry
30 * vt6655_remove - module remove entry
31 * vt6655_init_info - device structure resource allocation function
32 * device_free_info - device structure resource free function
33 * device_get_pci_info - get allocated pci io/mem resource
34 * device_print_info - print out resource
35 * device_intr - interrupt handle function
36 * device_rx_srv - rx service function
37 * device_alloc_rx_buf - rx buffer pre-allocated function
38 * device_free_tx_buf - free tx buffer function
39 * device_init_rd0_ring- initial rd dma0 ring
40 * device_init_rd1_ring- initial rd dma1 ring
41 * device_init_td0_ring- initial tx dma0 ring buffer
42 * device_init_td1_ring- initial tx dma1 ring buffer
43 * device_init_registers- initial MAC & BBP & RF internal registers.
44 * device_init_rings- initial tx/rx ring buffer
45 * device_free_rings- free all allocated ring buffer
46 * device_tx_srv- tx interrupt service function
47 *
48 * Revision History:
49 */
50 #undef __NO_VERSION__
51
52 #include <linux/file.h>
53 #include "device.h"
54 #include "card.h"
55 #include "channel.h"
56 #include "baseband.h"
57 #include "mac.h"
58 #include "power.h"
59 #include "rxtx.h"
60 #include "dpc.h"
61 #include "rf.h"
62 #include <linux/delay.h>
63 #include <linux/kthread.h>
64 #include <linux/slab.h>
65
66 /*--------------------- Static Definitions -------------------------*/
67 //
68 // Define module options
69 //
70 MODULE_AUTHOR("VIA Networking Technologies, Inc., <lyndonchen@vntek.com.tw>");
71 MODULE_LICENSE("GPL");
72 MODULE_DESCRIPTION("VIA Networking Solomon-A/B/G Wireless LAN Adapter Driver");
73
74 #define DEVICE_PARAM(N, D)
75
76 #define RX_DESC_MIN0 16
77 #define RX_DESC_MAX0 128
78 #define RX_DESC_DEF0 32
79 DEVICE_PARAM(RxDescriptors0, "Number of receive descriptors0");
80
81 #define RX_DESC_MIN1 16
82 #define RX_DESC_MAX1 128
83 #define RX_DESC_DEF1 32
84 DEVICE_PARAM(RxDescriptors1, "Number of receive descriptors1");
85
86 #define TX_DESC_MIN0 16
87 #define TX_DESC_MAX0 128
88 #define TX_DESC_DEF0 32
89 DEVICE_PARAM(TxDescriptors0, "Number of transmit descriptors0");
90
91 #define TX_DESC_MIN1 16
92 #define TX_DESC_MAX1 128
93 #define TX_DESC_DEF1 64
94 DEVICE_PARAM(TxDescriptors1, "Number of transmit descriptors1");
95
96 #define INT_WORKS_DEF 20
97 #define INT_WORKS_MIN 10
98 #define INT_WORKS_MAX 64
99
100 DEVICE_PARAM(int_works, "Number of packets per interrupt services");
101
102 #define RTS_THRESH_DEF 2347
103
104 #define FRAG_THRESH_DEF 2346
105
106 #define SHORT_RETRY_MIN 0
107 #define SHORT_RETRY_MAX 31
108 #define SHORT_RETRY_DEF 8
109
110 DEVICE_PARAM(ShortRetryLimit, "Short frame retry limits");
111
112 #define LONG_RETRY_MIN 0
113 #define LONG_RETRY_MAX 15
114 #define LONG_RETRY_DEF 4
115
116 DEVICE_PARAM(LongRetryLimit, "long frame retry limits");
117
118 /* BasebandType[] baseband type selected
119 0: indicate 802.11a type
120 1: indicate 802.11b type
121 2: indicate 802.11g type
122 */
123 #define BBP_TYPE_MIN 0
124 #define BBP_TYPE_MAX 2
125 #define BBP_TYPE_DEF 2
126
127 DEVICE_PARAM(BasebandType, "baseband type");
128
129 #define DIVERSITY_ANT_DEF 0
130
131 DEVICE_PARAM(bDiversityANTEnable, "ANT diversity mode");
132
133 //
134 // Static vars definitions
135 //
136 static CHIP_INFO chip_info_table[] = {
137 { VT3253, "VIA Networking Solomon-A/B/G Wireless LAN Adapter ",
138 256, 1, DEVICE_FLAGS_IP_ALIGN|DEVICE_FLAGS_TX_ALIGN },
139 {0, NULL}
140 };
141
142 static const struct pci_device_id vt6655_pci_id_table[] = {
143 { PCI_VDEVICE(VIA, 0x3253), (kernel_ulong_t)chip_info_table},
144 { 0, }
145 };
146
147 /*--------------------- Static Functions --------------------------*/
148
149 static int vt6655_probe(struct pci_dev *pcid, const struct pci_device_id *ent);
150 static void vt6655_init_info(struct pci_dev *pcid,
151 struct vnt_private **ppDevice, PCHIP_INFO);
152 static void device_free_info(struct vnt_private *pDevice);
153 static bool device_get_pci_info(struct vnt_private *, struct pci_dev *pcid);
154 static void device_print_info(struct vnt_private *pDevice);
155 static void device_init_diversity_timer(struct vnt_private *pDevice);
156 static irqreturn_t device_intr(int irq, void *dev_instance);
157
158 #ifdef CONFIG_PM
159 static int device_notify_reboot(struct notifier_block *, unsigned long event, void *ptr);
160 static struct notifier_block device_notifier = {
161 .notifier_call = device_notify_reboot,
162 .next = NULL,
163 .priority = 0,
164 };
165 #endif
166
167 static void device_init_rd0_ring(struct vnt_private *pDevice);
168 static void device_init_rd1_ring(struct vnt_private *pDevice);
169 static void device_init_td0_ring(struct vnt_private *pDevice);
170 static void device_init_td1_ring(struct vnt_private *pDevice);
171
172 static int device_rx_srv(struct vnt_private *pDevice, unsigned int uIdx);
173 static int device_tx_srv(struct vnt_private *pDevice, unsigned int uIdx);
174 static bool device_alloc_rx_buf(struct vnt_private *pDevice, PSRxDesc pDesc);
175 static void device_init_registers(struct vnt_private *pDevice);
176 static void device_free_tx_buf(struct vnt_private *pDevice, PSTxDesc pDesc);
177 static void device_free_td0_ring(struct vnt_private *pDevice);
178 static void device_free_td1_ring(struct vnt_private *pDevice);
179 static void device_free_rd0_ring(struct vnt_private *pDevice);
180 static void device_free_rd1_ring(struct vnt_private *pDevice);
181 static void device_free_rings(struct vnt_private *pDevice);
182
183 /*--------------------- Export Variables --------------------------*/
184
185 /*--------------------- Export Functions --------------------------*/
186
187 static char *get_chip_name(int chip_id)
188 {
189 int i;
190
191 for (i = 0; chip_info_table[i].name != NULL; i++)
192 if (chip_info_table[i].chip_id == chip_id)
193 break;
194 return chip_info_table[i].name;
195 }
196
197 static void vt6655_remove(struct pci_dev *pcid)
198 {
199 struct vnt_private *pDevice = pci_get_drvdata(pcid);
200
201 if (pDevice == NULL)
202 return;
203 device_free_info(pDevice);
204 }
205
206 static void device_get_options(struct vnt_private *pDevice)
207 {
208 POPTIONS pOpts = &(pDevice->sOpts);
209
210 pOpts->nRxDescs0 = RX_DESC_DEF0;
211 pOpts->nRxDescs1 = RX_DESC_DEF1;
212 pOpts->nTxDescs[0] = TX_DESC_DEF0;
213 pOpts->nTxDescs[1] = TX_DESC_DEF1;
214 pOpts->int_works = INT_WORKS_DEF;
215
216 pOpts->short_retry = SHORT_RETRY_DEF;
217 pOpts->long_retry = LONG_RETRY_DEF;
218 pOpts->bbp_type = BBP_TYPE_DEF;
219 pOpts->flags |= DEVICE_FLAGS_DiversityANT;
220 }
221
222 static void
223 device_set_options(struct vnt_private *pDevice)
224 {
225 pDevice->byShortRetryLimit = pDevice->sOpts.short_retry;
226 pDevice->byLongRetryLimit = pDevice->sOpts.long_retry;
227 pDevice->bDiversityRegCtlON = (pDevice->sOpts.flags & DEVICE_FLAGS_DiversityANT) ? 1 : 0;
228 pDevice->byBBType = pDevice->sOpts.bbp_type;
229 pDevice->byPacketType = pDevice->byBBType;
230 pDevice->byAutoFBCtrl = AUTO_FB_0;
231 pDevice->bUpdateBBVGA = true;
232 pDevice->byPreambleType = 0;
233
234 pr_debug(" byShortRetryLimit= %d\n", (int)pDevice->byShortRetryLimit);
235 pr_debug(" byLongRetryLimit= %d\n", (int)pDevice->byLongRetryLimit);
236 pr_debug(" byPreambleType= %d\n", (int)pDevice->byPreambleType);
237 pr_debug(" byShortPreamble= %d\n", (int)pDevice->byShortPreamble);
238 pr_debug(" byBBType= %d\n", (int)pDevice->byBBType);
239 pr_debug(" pDevice->bDiversityRegCtlON= %d\n",
240 (int)pDevice->bDiversityRegCtlON);
241 }
242
243 //
244 // Initialisation of MAC & BBP registers
245 //
246
247 static void device_init_registers(struct vnt_private *pDevice)
248 {
249 unsigned long flags;
250 unsigned int ii;
251 unsigned char byValue;
252 unsigned char byValue1;
253 unsigned char byCCKPwrdBm = 0;
254 unsigned char byOFDMPwrdBm = 0;
255
256 MACbShutdown(pDevice->PortOffset);
257 BBvSoftwareReset(pDevice);
258
259 /* Do MACbSoftwareReset in MACvInitialize */
260 MACbSoftwareReset(pDevice->PortOffset);
261
262 pDevice->bAES = false;
263
264 /* Only used in 11g type, sync with ERP IE */
265 pDevice->bProtectMode = false;
266
267 pDevice->bNonERPPresent = false;
268 pDevice->bBarkerPreambleMd = false;
269 pDevice->wCurrentRate = RATE_1M;
270 pDevice->byTopOFDMBasicRate = RATE_24M;
271 pDevice->byTopCCKBasicRate = RATE_1M;
272
273 /* Target to IF pin while programming to RF chip. */
274 pDevice->byRevId = 0;
275
276 /* init MAC */
277 MACvInitialize(pDevice->PortOffset);
278
279 /* Get Local ID */
280 VNSvInPortB(pDevice->PortOffset + MAC_REG_LOCALID, &pDevice->byLocalID);
281
282 spin_lock_irqsave(&pDevice->lock, flags);
283
284 SROMvReadAllContents(pDevice->PortOffset, pDevice->abyEEPROM);
285
286 spin_unlock_irqrestore(&pDevice->lock, flags);
287
288 /* Get Channel range */
289 pDevice->byMinChannel = 1;
290 pDevice->byMaxChannel = CB_MAX_CHANNEL;
291
292 /* Get Antena */
293 byValue = SROMbyReadEmbedded(pDevice->PortOffset, EEP_OFS_ANTENNA);
294 if (byValue & EEP_ANTINV)
295 pDevice->bTxRxAntInv = true;
296 else
297 pDevice->bTxRxAntInv = false;
298
299 byValue &= (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN);
300 /* if not set default is All */
301 if (byValue == 0)
302 byValue = (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN);
303
304 pDevice->ulDiversityNValue = 100*260;
305 pDevice->ulDiversityMValue = 100*16;
306 pDevice->byTMax = 1;
307 pDevice->byTMax2 = 4;
308 pDevice->ulSQ3TH = 0;
309 pDevice->byTMax3 = 64;
310
311 if (byValue == (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN)) {
312 pDevice->byAntennaCount = 2;
313 pDevice->byTxAntennaMode = ANT_B;
314 pDevice->dwTxAntennaSel = 1;
315 pDevice->dwRxAntennaSel = 1;
316
317 if (pDevice->bTxRxAntInv)
318 pDevice->byRxAntennaMode = ANT_A;
319 else
320 pDevice->byRxAntennaMode = ANT_B;
321
322 byValue1 = SROMbyReadEmbedded(pDevice->PortOffset,
323 EEP_OFS_ANTENNA);
324
325 if ((byValue1 & 0x08) == 0)
326 pDevice->bDiversityEnable = false;
327 else
328 pDevice->bDiversityEnable = true;
329 } else {
330 pDevice->bDiversityEnable = false;
331 pDevice->byAntennaCount = 1;
332 pDevice->dwTxAntennaSel = 0;
333 pDevice->dwRxAntennaSel = 0;
334
335 if (byValue & EEP_ANTENNA_AUX) {
336 pDevice->byTxAntennaMode = ANT_A;
337
338 if (pDevice->bTxRxAntInv)
339 pDevice->byRxAntennaMode = ANT_B;
340 else
341 pDevice->byRxAntennaMode = ANT_A;
342 } else {
343 pDevice->byTxAntennaMode = ANT_B;
344
345 if (pDevice->bTxRxAntInv)
346 pDevice->byRxAntennaMode = ANT_A;
347 else
348 pDevice->byRxAntennaMode = ANT_B;
349 }
350 }
351
352 pr_debug("bDiversityEnable=[%d],NValue=[%d],MValue=[%d],TMax=[%d],TMax2=[%d]\n",
353 pDevice->bDiversityEnable, (int)pDevice->ulDiversityNValue,
354 (int)pDevice->ulDiversityMValue, pDevice->byTMax,
355 pDevice->byTMax2);
356
357 /* zonetype initial */
358 pDevice->byOriginalZonetype = pDevice->abyEEPROM[EEP_OFS_ZONETYPE];
359
360 /* Get RFType */
361 pDevice->byRFType = SROMbyReadEmbedded(pDevice->PortOffset, EEP_OFS_RFTYPE);
362
363 /* force change RevID for VT3253 emu */
364 if ((pDevice->byRFType & RF_EMU) != 0)
365 pDevice->byRevId = 0x80;
366
367 pDevice->byRFType &= RF_MASK;
368 pr_debug("pDevice->byRFType = %x\n", pDevice->byRFType);
369
370 if (!pDevice->bZoneRegExist)
371 pDevice->byZoneType = pDevice->abyEEPROM[EEP_OFS_ZONETYPE];
372
373 pr_debug("pDevice->byZoneType = %x\n", pDevice->byZoneType);
374
375 /* Init RF module */
376 RFbInit(pDevice);
377
378 /* Get Desire Power Value */
379 pDevice->byCurPwr = 0xFF;
380 pDevice->byCCKPwr = SROMbyReadEmbedded(pDevice->PortOffset, EEP_OFS_PWR_CCK);
381 pDevice->byOFDMPwrG = SROMbyReadEmbedded(pDevice->PortOffset, EEP_OFS_PWR_OFDMG);
382
383 /* Load power Table */
384 for (ii = 0; ii < CB_MAX_CHANNEL_24G; ii++) {
385 pDevice->abyCCKPwrTbl[ii + 1] =
386 SROMbyReadEmbedded(pDevice->PortOffset,
387 (unsigned char)(ii + EEP_OFS_CCK_PWR_TBL));
388 if (pDevice->abyCCKPwrTbl[ii + 1] == 0)
389 pDevice->abyCCKPwrTbl[ii+1] = pDevice->byCCKPwr;
390
391 pDevice->abyOFDMPwrTbl[ii + 1] =
392 SROMbyReadEmbedded(pDevice->PortOffset,
393 (unsigned char)(ii + EEP_OFS_OFDM_PWR_TBL));
394 if (pDevice->abyOFDMPwrTbl[ii + 1] == 0)
395 pDevice->abyOFDMPwrTbl[ii + 1] = pDevice->byOFDMPwrG;
396
397 pDevice->abyCCKDefaultPwr[ii + 1] = byCCKPwrdBm;
398 pDevice->abyOFDMDefaultPwr[ii + 1] = byOFDMPwrdBm;
399 }
400
401 /* recover 12,13 ,14channel for EUROPE by 11 channel */
402 for (ii = 11; ii < 14; ii++) {
403 pDevice->abyCCKPwrTbl[ii] = pDevice->abyCCKPwrTbl[10];
404 pDevice->abyOFDMPwrTbl[ii] = pDevice->abyOFDMPwrTbl[10];
405 }
406
407 /* Load OFDM A Power Table */
408 for (ii = 0; ii < CB_MAX_CHANNEL_5G; ii++) {
409 pDevice->abyOFDMPwrTbl[ii + CB_MAX_CHANNEL_24G + 1] =
410 SROMbyReadEmbedded(pDevice->PortOffset,
411 (unsigned char)(ii + EEP_OFS_OFDMA_PWR_TBL));
412
413 pDevice->abyOFDMDefaultPwr[ii + CB_MAX_CHANNEL_24G + 1] =
414 SROMbyReadEmbedded(pDevice->PortOffset,
415 (unsigned char)(ii + EEP_OFS_OFDMA_PWR_dBm));
416 }
417
418 if (pDevice->byLocalID > REV_ID_VT3253_B1) {
419 MACvSelectPage1(pDevice->PortOffset);
420
421 VNSvOutPortB(pDevice->PortOffset + MAC_REG_MSRCTL + 1,
422 (MSRCTL1_TXPWR | MSRCTL1_CSAPAREN));
423
424 MACvSelectPage0(pDevice->PortOffset);
425 }
426
427 /* use relative tx timeout and 802.11i D4 */
428 MACvWordRegBitsOn(pDevice->PortOffset,
429 MAC_REG_CFG, (CFG_TKIPOPT | CFG_NOTXTIMEOUT));
430
431 /* set performance parameter by registry */
432 MACvSetShortRetryLimit(pDevice->PortOffset, pDevice->byShortRetryLimit);
433 MACvSetLongRetryLimit(pDevice->PortOffset, pDevice->byLongRetryLimit);
434
435 /* reset TSF counter */
436 VNSvOutPortB(pDevice->PortOffset + MAC_REG_TFTCTL, TFTCTL_TSFCNTRST);
437 /* enable TSF counter */
438 VNSvOutPortB(pDevice->PortOffset + MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
439
440 /* initialize BBP registers */
441 BBbVT3253Init(pDevice);
442
443 if (pDevice->bUpdateBBVGA) {
444 pDevice->byBBVGACurrent = pDevice->abyBBVGA[0];
445 pDevice->byBBVGANew = pDevice->byBBVGACurrent;
446 BBvSetVGAGainOffset(pDevice, pDevice->abyBBVGA[0]);
447 }
448
449 BBvSetRxAntennaMode(pDevice, pDevice->byRxAntennaMode);
450 BBvSetTxAntennaMode(pDevice, pDevice->byTxAntennaMode);
451
452 /* Set BB and packet type at the same time. */
453 /* Set Short Slot Time, xIFS, and RSPINF. */
454 pDevice->wCurrentRate = RATE_54M;
455
456 pDevice->bRadioOff = false;
457
458 pDevice->byRadioCtl = SROMbyReadEmbedded(pDevice->PortOffset,
459 EEP_OFS_RADIOCTL);
460 pDevice->bHWRadioOff = false;
461
462 if (pDevice->byRadioCtl & EEP_RADIOCTL_ENABLE) {
463 /* Get GPIO */
464 MACvGPIOIn(pDevice->PortOffset, &pDevice->byGPIO);
465
466 if (((pDevice->byGPIO & GPIO0_DATA) &&
467 !(pDevice->byRadioCtl & EEP_RADIOCTL_INV)) ||
468 (!(pDevice->byGPIO & GPIO0_DATA) &&
469 (pDevice->byRadioCtl & EEP_RADIOCTL_INV)))
470 pDevice->bHWRadioOff = true;
471 }
472
473 if (pDevice->bHWRadioOff || pDevice->bRadioControlOff)
474 CARDbRadioPowerOff(pDevice);
475
476 /* get Permanent network address */
477 SROMvReadEtherAddress(pDevice->PortOffset, pDevice->abyCurrentNetAddr);
478 pr_debug("Network address = %pM\n", pDevice->abyCurrentNetAddr);
479
480 /* reset Tx pointer */
481 CARDvSafeResetRx(pDevice);
482 /* reset Rx pointer */
483 CARDvSafeResetTx(pDevice);
484
485 if (pDevice->byLocalID <= REV_ID_VT3253_A1)
486 MACvRegBitsOn(pDevice->PortOffset, MAC_REG_RCR, RCR_WPAERR);
487
488 /* Turn On Rx DMA */
489 MACvReceive0(pDevice->PortOffset);
490 MACvReceive1(pDevice->PortOffset);
491
492 /* start the adapter */
493 MACvStart(pDevice->PortOffset);
494 }
495
496 static void device_init_diversity_timer(struct vnt_private *pDevice)
497 {
498 init_timer(&pDevice->TimerSQ3Tmax1);
499 pDevice->TimerSQ3Tmax1.data = (unsigned long) pDevice;
500 pDevice->TimerSQ3Tmax1.function = TimerSQ3CallBack;
501 pDevice->TimerSQ3Tmax1.expires = RUN_AT(HZ);
502
503 init_timer(&pDevice->TimerSQ3Tmax2);
504 pDevice->TimerSQ3Tmax2.data = (unsigned long) pDevice;
505 pDevice->TimerSQ3Tmax2.function = TimerSQ3CallBack;
506 pDevice->TimerSQ3Tmax2.expires = RUN_AT(HZ);
507
508 init_timer(&pDevice->TimerSQ3Tmax3);
509 pDevice->TimerSQ3Tmax3.data = (unsigned long) pDevice;
510 pDevice->TimerSQ3Tmax3.function = TimerState1CallBack;
511 pDevice->TimerSQ3Tmax3.expires = RUN_AT(HZ);
512 }
513
514 static void device_print_info(struct vnt_private *pDevice)
515 {
516 dev_info(&pDevice->pcid->dev, "%s\n", get_chip_name(pDevice->chip_id));
517
518 dev_info(&pDevice->pcid->dev, "MAC=%pM IO=0x%lx Mem=0x%lx IRQ=%d\n",
519 pDevice->abyCurrentNetAddr, (unsigned long)pDevice->ioaddr,
520 (unsigned long)pDevice->PortOffset, pDevice->pcid->irq);
521 }
522
523 static void vt6655_init_info(struct pci_dev *pcid,
524 struct vnt_private **ppDevice,
525 PCHIP_INFO pChip_info)
526 {
527 memset(*ppDevice, 0, sizeof(**ppDevice));
528
529 (*ppDevice)->pcid = pcid;
530 (*ppDevice)->chip_id = pChip_info->chip_id;
531 (*ppDevice)->io_size = pChip_info->io_size;
532 (*ppDevice)->nTxQueues = pChip_info->nTxQueue;
533 (*ppDevice)->multicast_limit = 32;
534
535 spin_lock_init(&((*ppDevice)->lock));
536 }
537
538 static bool device_get_pci_info(struct vnt_private *pDevice,
539 struct pci_dev *pcid)
540 {
541 u16 pci_cmd;
542 u8 b;
543 unsigned int cis_addr;
544
545 pci_read_config_byte(pcid, PCI_REVISION_ID, &pDevice->byRevId);
546 pci_read_config_word(pcid, PCI_SUBSYSTEM_ID, &pDevice->SubSystemID);
547 pci_read_config_word(pcid, PCI_SUBSYSTEM_VENDOR_ID, &pDevice->SubVendorID);
548 pci_read_config_word(pcid, PCI_COMMAND, (u16 *)&(pci_cmd));
549
550 pci_set_master(pcid);
551
552 pDevice->memaddr = pci_resource_start(pcid, 0);
553 pDevice->ioaddr = pci_resource_start(pcid, 1);
554
555 cis_addr = pci_resource_start(pcid, 2);
556
557 pDevice->pcid = pcid;
558
559 pci_read_config_byte(pcid, PCI_COMMAND, &b);
560 pci_write_config_byte(pcid, PCI_COMMAND, (b|PCI_COMMAND_MASTER));
561
562 return true;
563 }
564
565 static void device_free_info(struct vnt_private *pDevice)
566 {
567 if (!pDevice)
568 return;
569
570 if (pDevice->mac_hw)
571 ieee80211_unregister_hw(pDevice->hw);
572
573 if (pDevice->PortOffset)
574 iounmap(pDevice->PortOffset);
575
576 if (pDevice->pcid)
577 pci_release_regions(pDevice->pcid);
578
579 if (pDevice->hw)
580 ieee80211_free_hw(pDevice->hw);
581 }
582
583 static bool device_init_rings(struct vnt_private *pDevice)
584 {
585 void *vir_pool;
586
587 /*allocate all RD/TD rings a single pool*/
588 vir_pool = pci_zalloc_consistent(pDevice->pcid,
589 pDevice->sOpts.nRxDescs0 * sizeof(SRxDesc) +
590 pDevice->sOpts.nRxDescs1 * sizeof(SRxDesc) +
591 pDevice->sOpts.nTxDescs[0] * sizeof(STxDesc) +
592 pDevice->sOpts.nTxDescs[1] * sizeof(STxDesc),
593 &pDevice->pool_dma);
594 if (vir_pool == NULL) {
595 dev_err(&pDevice->pcid->dev, "allocate desc dma memory failed\n");
596 return false;
597 }
598
599 pDevice->aRD0Ring = vir_pool;
600 pDevice->aRD1Ring = vir_pool +
601 pDevice->sOpts.nRxDescs0 * sizeof(SRxDesc);
602
603 pDevice->rd0_pool_dma = pDevice->pool_dma;
604 pDevice->rd1_pool_dma = pDevice->rd0_pool_dma +
605 pDevice->sOpts.nRxDescs0 * sizeof(SRxDesc);
606
607 pDevice->tx0_bufs = pci_zalloc_consistent(pDevice->pcid,
608 pDevice->sOpts.nTxDescs[0] * PKT_BUF_SZ +
609 pDevice->sOpts.nTxDescs[1] * PKT_BUF_SZ +
610 CB_BEACON_BUF_SIZE +
611 CB_MAX_BUF_SIZE,
612 &pDevice->tx_bufs_dma0);
613 if (pDevice->tx0_bufs == NULL) {
614 dev_err(&pDevice->pcid->dev, "allocate buf dma memory failed\n");
615
616 pci_free_consistent(pDevice->pcid,
617 pDevice->sOpts.nRxDescs0 * sizeof(SRxDesc) +
618 pDevice->sOpts.nRxDescs1 * sizeof(SRxDesc) +
619 pDevice->sOpts.nTxDescs[0] * sizeof(STxDesc) +
620 pDevice->sOpts.nTxDescs[1] * sizeof(STxDesc),
621 vir_pool, pDevice->pool_dma
622 );
623 return false;
624 }
625
626 pDevice->td0_pool_dma = pDevice->rd1_pool_dma +
627 pDevice->sOpts.nRxDescs1 * sizeof(SRxDesc);
628
629 pDevice->td1_pool_dma = pDevice->td0_pool_dma +
630 pDevice->sOpts.nTxDescs[0] * sizeof(STxDesc);
631
632 // vir_pool: pvoid type
633 pDevice->apTD0Rings = vir_pool
634 + pDevice->sOpts.nRxDescs0 * sizeof(SRxDesc)
635 + pDevice->sOpts.nRxDescs1 * sizeof(SRxDesc);
636
637 pDevice->apTD1Rings = vir_pool
638 + pDevice->sOpts.nRxDescs0 * sizeof(SRxDesc)
639 + pDevice->sOpts.nRxDescs1 * sizeof(SRxDesc)
640 + pDevice->sOpts.nTxDescs[0] * sizeof(STxDesc);
641
642 pDevice->tx1_bufs = pDevice->tx0_bufs +
643 pDevice->sOpts.nTxDescs[0] * PKT_BUF_SZ;
644
645 pDevice->tx_beacon_bufs = pDevice->tx1_bufs +
646 pDevice->sOpts.nTxDescs[1] * PKT_BUF_SZ;
647
648 pDevice->pbyTmpBuff = pDevice->tx_beacon_bufs +
649 CB_BEACON_BUF_SIZE;
650
651 pDevice->tx_bufs_dma1 = pDevice->tx_bufs_dma0 +
652 pDevice->sOpts.nTxDescs[0] * PKT_BUF_SZ;
653
654 pDevice->tx_beacon_dma = pDevice->tx_bufs_dma1 +
655 pDevice->sOpts.nTxDescs[1] * PKT_BUF_SZ;
656
657 return true;
658 }
659
660 static void device_free_rings(struct vnt_private *pDevice)
661 {
662 pci_free_consistent(pDevice->pcid,
663 pDevice->sOpts.nRxDescs0 * sizeof(SRxDesc) +
664 pDevice->sOpts.nRxDescs1 * sizeof(SRxDesc) +
665 pDevice->sOpts.nTxDescs[0] * sizeof(STxDesc) +
666 pDevice->sOpts.nTxDescs[1] * sizeof(STxDesc)
667 ,
668 pDevice->aRD0Ring, pDevice->pool_dma
669 );
670
671 if (pDevice->tx0_bufs)
672 pci_free_consistent(pDevice->pcid,
673 pDevice->sOpts.nTxDescs[0] * PKT_BUF_SZ +
674 pDevice->sOpts.nTxDescs[1] * PKT_BUF_SZ +
675 CB_BEACON_BUF_SIZE +
676 CB_MAX_BUF_SIZE,
677 pDevice->tx0_bufs, pDevice->tx_bufs_dma0
678 );
679 }
680
681 static void device_init_rd0_ring(struct vnt_private *pDevice)
682 {
683 int i;
684 dma_addr_t curr = pDevice->rd0_pool_dma;
685 PSRxDesc pDesc;
686
687 /* Init the RD0 ring entries */
688 for (i = 0; i < pDevice->sOpts.nRxDescs0; i ++, curr += sizeof(SRxDesc)) {
689 pDesc = &(pDevice->aRD0Ring[i]);
690 pDesc->pRDInfo = alloc_rd_info();
691 ASSERT(pDesc->pRDInfo);
692 if (!device_alloc_rx_buf(pDevice, pDesc))
693 dev_err(&pDevice->pcid->dev, "can not alloc rx bufs\n");
694
695 pDesc->next = &(pDevice->aRD0Ring[(i+1) % pDevice->sOpts.nRxDescs0]);
696 pDesc->pRDInfo->curr_desc = cpu_to_le32(curr);
697 pDesc->next_desc = cpu_to_le32(curr + sizeof(SRxDesc));
698 }
699
700 if (i > 0)
701 pDevice->aRD0Ring[i-1].next_desc = cpu_to_le32(pDevice->rd0_pool_dma);
702 pDevice->pCurrRD[0] = &(pDevice->aRD0Ring[0]);
703 }
704
705 static void device_init_rd1_ring(struct vnt_private *pDevice)
706 {
707 int i;
708 dma_addr_t curr = pDevice->rd1_pool_dma;
709 PSRxDesc pDesc;
710
711 /* Init the RD1 ring entries */
712 for (i = 0; i < pDevice->sOpts.nRxDescs1; i ++, curr += sizeof(SRxDesc)) {
713 pDesc = &(pDevice->aRD1Ring[i]);
714 pDesc->pRDInfo = alloc_rd_info();
715 ASSERT(pDesc->pRDInfo);
716 if (!device_alloc_rx_buf(pDevice, pDesc))
717 dev_err(&pDevice->pcid->dev, "can not alloc rx bufs\n");
718
719 pDesc->next = &(pDevice->aRD1Ring[(i+1) % pDevice->sOpts.nRxDescs1]);
720 pDesc->pRDInfo->curr_desc = cpu_to_le32(curr);
721 pDesc->next_desc = cpu_to_le32(curr + sizeof(SRxDesc));
722 }
723
724 if (i > 0)
725 pDevice->aRD1Ring[i-1].next_desc = cpu_to_le32(pDevice->rd1_pool_dma);
726 pDevice->pCurrRD[1] = &(pDevice->aRD1Ring[0]);
727 }
728
729 static void device_free_rd0_ring(struct vnt_private *pDevice)
730 {
731 int i;
732
733 for (i = 0; i < pDevice->sOpts.nRxDescs0; i++) {
734 PSRxDesc pDesc = &(pDevice->aRD0Ring[i]);
735 PDEVICE_RD_INFO pRDInfo = pDesc->pRDInfo;
736
737 pci_unmap_single(pDevice->pcid, pRDInfo->skb_dma,
738 pDevice->rx_buf_sz, PCI_DMA_FROMDEVICE);
739
740 dev_kfree_skb(pRDInfo->skb);
741
742 kfree(pDesc->pRDInfo);
743 }
744 }
745
746 static void device_free_rd1_ring(struct vnt_private *pDevice)
747 {
748 int i;
749
750 for (i = 0; i < pDevice->sOpts.nRxDescs1; i++) {
751 PSRxDesc pDesc = &(pDevice->aRD1Ring[i]);
752 PDEVICE_RD_INFO pRDInfo = pDesc->pRDInfo;
753
754 pci_unmap_single(pDevice->pcid, pRDInfo->skb_dma,
755 pDevice->rx_buf_sz, PCI_DMA_FROMDEVICE);
756
757 dev_kfree_skb(pRDInfo->skb);
758
759 kfree(pDesc->pRDInfo);
760 }
761 }
762
763 static void device_init_td0_ring(struct vnt_private *pDevice)
764 {
765 int i;
766 dma_addr_t curr;
767 PSTxDesc pDesc;
768
769 curr = pDevice->td0_pool_dma;
770 for (i = 0; i < pDevice->sOpts.nTxDescs[0]; i++, curr += sizeof(STxDesc)) {
771 pDesc = &(pDevice->apTD0Rings[i]);
772 pDesc->pTDInfo = alloc_td_info();
773 ASSERT(pDesc->pTDInfo);
774 if (pDevice->flags & DEVICE_FLAGS_TX_ALIGN) {
775 pDesc->pTDInfo->buf = pDevice->tx0_bufs + (i)*PKT_BUF_SZ;
776 pDesc->pTDInfo->buf_dma = pDevice->tx_bufs_dma0 + (i)*PKT_BUF_SZ;
777 }
778 pDesc->next = &(pDevice->apTD0Rings[(i+1) % pDevice->sOpts.nTxDescs[0]]);
779 pDesc->pTDInfo->curr_desc = cpu_to_le32(curr);
780 pDesc->next_desc = cpu_to_le32(curr+sizeof(STxDesc));
781 }
782
783 if (i > 0)
784 pDevice->apTD0Rings[i-1].next_desc = cpu_to_le32(pDevice->td0_pool_dma);
785 pDevice->apTailTD[0] = pDevice->apCurrTD[0] = &(pDevice->apTD0Rings[0]);
786 }
787
788 static void device_init_td1_ring(struct vnt_private *pDevice)
789 {
790 int i;
791 dma_addr_t curr;
792 PSTxDesc pDesc;
793
794 /* Init the TD ring entries */
795 curr = pDevice->td1_pool_dma;
796 for (i = 0; i < pDevice->sOpts.nTxDescs[1]; i++, curr += sizeof(STxDesc)) {
797 pDesc = &(pDevice->apTD1Rings[i]);
798 pDesc->pTDInfo = alloc_td_info();
799 ASSERT(pDesc->pTDInfo);
800 if (pDevice->flags & DEVICE_FLAGS_TX_ALIGN) {
801 pDesc->pTDInfo->buf = pDevice->tx1_bufs + (i) * PKT_BUF_SZ;
802 pDesc->pTDInfo->buf_dma = pDevice->tx_bufs_dma1 + (i) * PKT_BUF_SZ;
803 }
804 pDesc->next = &(pDevice->apTD1Rings[(i + 1) % pDevice->sOpts.nTxDescs[1]]);
805 pDesc->pTDInfo->curr_desc = cpu_to_le32(curr);
806 pDesc->next_desc = cpu_to_le32(curr+sizeof(STxDesc));
807 }
808
809 if (i > 0)
810 pDevice->apTD1Rings[i-1].next_desc = cpu_to_le32(pDevice->td1_pool_dma);
811 pDevice->apTailTD[1] = pDevice->apCurrTD[1] = &(pDevice->apTD1Rings[0]);
812 }
813
814 static void device_free_td0_ring(struct vnt_private *pDevice)
815 {
816 int i;
817
818 for (i = 0; i < pDevice->sOpts.nTxDescs[0]; i++) {
819 PSTxDesc pDesc = &(pDevice->apTD0Rings[i]);
820 PDEVICE_TD_INFO pTDInfo = pDesc->pTDInfo;
821
822 if (pTDInfo->skb_dma && (pTDInfo->skb_dma != pTDInfo->buf_dma))
823 pci_unmap_single(pDevice->pcid, pTDInfo->skb_dma,
824 pTDInfo->skb->len, PCI_DMA_TODEVICE);
825
826 if (pTDInfo->skb)
827 dev_kfree_skb(pTDInfo->skb);
828
829 kfree(pDesc->pTDInfo);
830 }
831 }
832
833 static void device_free_td1_ring(struct vnt_private *pDevice)
834 {
835 int i;
836
837 for (i = 0; i < pDevice->sOpts.nTxDescs[1]; i++) {
838 PSTxDesc pDesc = &(pDevice->apTD1Rings[i]);
839 PDEVICE_TD_INFO pTDInfo = pDesc->pTDInfo;
840
841 if (pTDInfo->skb_dma && (pTDInfo->skb_dma != pTDInfo->buf_dma))
842 pci_unmap_single(pDevice->pcid, pTDInfo->skb_dma,
843 pTDInfo->skb->len, PCI_DMA_TODEVICE);
844
845 if (pTDInfo->skb)
846 dev_kfree_skb(pTDInfo->skb);
847
848 kfree(pDesc->pTDInfo);
849 }
850 }
851
852 /*-----------------------------------------------------------------*/
853
854 static int device_rx_srv(struct vnt_private *pDevice, unsigned int uIdx)
855 {
856 PSRxDesc pRD;
857 int works = 0;
858
859 for (pRD = pDevice->pCurrRD[uIdx];
860 pRD->m_rd0RD0.f1Owner == OWNED_BY_HOST;
861 pRD = pRD->next) {
862 if (works++ > 15)
863 break;
864 if (vnt_receive_frame(pDevice, pRD)) {
865 if (!device_alloc_rx_buf(pDevice, pRD)) {
866 dev_err(&pDevice->pcid->dev,
867 "can not allocate rx buf\n");
868 break;
869 }
870 }
871 pRD->m_rd0RD0.f1Owner = OWNED_BY_NIC;
872 }
873
874 pDevice->pCurrRD[uIdx] = pRD;
875
876 return works;
877 }
878
879 static bool device_alloc_rx_buf(struct vnt_private *pDevice, PSRxDesc pRD)
880 {
881 PDEVICE_RD_INFO pRDInfo = pRD->pRDInfo;
882
883 pRDInfo->skb = dev_alloc_skb((int)pDevice->rx_buf_sz);
884 if (pRDInfo->skb == NULL)
885 return false;
886 ASSERT(pRDInfo->skb);
887
888 pRDInfo->skb_dma =
889 pci_map_single(pDevice->pcid,
890 skb_put(pRDInfo->skb, skb_tailroom(pRDInfo->skb)),
891 pDevice->rx_buf_sz, PCI_DMA_FROMDEVICE);
892
893 *((unsigned int *)&(pRD->m_rd0RD0)) = 0; /* FIX cast */
894
895 pRD->m_rd0RD0.wResCount = cpu_to_le16(pDevice->rx_buf_sz);
896 pRD->m_rd0RD0.f1Owner = OWNED_BY_NIC;
897 pRD->m_rd1RD1.wReqCount = cpu_to_le16(pDevice->rx_buf_sz);
898 pRD->buff_addr = cpu_to_le32(pRDInfo->skb_dma);
899
900 return true;
901 }
902
903 static const u8 fallback_rate0[5][5] = {
904 {RATE_18M, RATE_18M, RATE_12M, RATE_12M, RATE_12M},
905 {RATE_24M, RATE_24M, RATE_18M, RATE_12M, RATE_12M},
906 {RATE_36M, RATE_36M, RATE_24M, RATE_18M, RATE_18M},
907 {RATE_48M, RATE_48M, RATE_36M, RATE_24M, RATE_24M},
908 {RATE_54M, RATE_54M, RATE_48M, RATE_36M, RATE_36M}
909 };
910
911 static const u8 fallback_rate1[5][5] = {
912 {RATE_18M, RATE_18M, RATE_12M, RATE_6M, RATE_6M},
913 {RATE_24M, RATE_24M, RATE_18M, RATE_6M, RATE_6M},
914 {RATE_36M, RATE_36M, RATE_24M, RATE_12M, RATE_12M},
915 {RATE_48M, RATE_48M, RATE_24M, RATE_12M, RATE_12M},
916 {RATE_54M, RATE_54M, RATE_36M, RATE_18M, RATE_18M}
917 };
918
919 static int vnt_int_report_rate(struct vnt_private *priv,
920 PDEVICE_TD_INFO context, u8 tsr0, u8 tsr1)
921 {
922 struct vnt_tx_fifo_head *fifo_head;
923 struct ieee80211_tx_info *info;
924 struct ieee80211_rate *rate;
925 u16 fb_option;
926 u8 tx_retry = (tsr0 & TSR0_NCR);
927 s8 idx;
928
929 if (!context)
930 return -ENOMEM;
931
932 if (!context->skb)
933 return -EINVAL;
934
935 fifo_head = (struct vnt_tx_fifo_head *)context->buf;
936 fb_option = (le16_to_cpu(fifo_head->fifo_ctl) &
937 (FIFOCTL_AUTO_FB_0 | FIFOCTL_AUTO_FB_1));
938
939 info = IEEE80211_SKB_CB(context->skb);
940 idx = info->control.rates[0].idx;
941
942 if (fb_option && !(tsr1 & TSR1_TERR)) {
943 u8 tx_rate;
944 u8 retry = tx_retry;
945
946 rate = ieee80211_get_tx_rate(priv->hw, info);
947 tx_rate = rate->hw_value - RATE_18M;
948
949 if (retry > 4)
950 retry = 4;
951
952 if (fb_option & FIFOCTL_AUTO_FB_0)
953 tx_rate = fallback_rate0[tx_rate][retry];
954 else if (fb_option & FIFOCTL_AUTO_FB_1)
955 tx_rate = fallback_rate1[tx_rate][retry];
956
957 if (info->band == IEEE80211_BAND_5GHZ)
958 idx = tx_rate - RATE_6M;
959 else
960 idx = tx_rate;
961 }
962
963 ieee80211_tx_info_clear_status(info);
964
965 info->status.rates[0].count = tx_retry;
966
967 if (!(tsr1 & TSR1_TERR)) {
968 info->status.rates[0].idx = idx;
969 info->flags |= IEEE80211_TX_STAT_ACK;
970 }
971
972 return 0;
973 }
974
975 static int device_tx_srv(struct vnt_private *pDevice, unsigned int uIdx)
976 {
977 PSTxDesc pTD;
978 int works = 0;
979 unsigned char byTsr0;
980 unsigned char byTsr1;
981
982 for (pTD = pDevice->apTailTD[uIdx]; pDevice->iTDUsed[uIdx] > 0; pTD = pTD->next) {
983 if (pTD->m_td0TD0.f1Owner == OWNED_BY_NIC)
984 break;
985 if (works++ > 15)
986 break;
987
988 byTsr0 = pTD->m_td0TD0.byTSR0;
989 byTsr1 = pTD->m_td0TD0.byTSR1;
990
991 //Only the status of first TD in the chain is correct
992 if (pTD->m_td1TD1.byTCR & TCR_STP) {
993 if ((pTD->pTDInfo->byFlags & TD_FLAGS_NETIF_SKB) != 0) {
994
995 vnt_int_report_rate(pDevice, pTD->pTDInfo, byTsr0, byTsr1);
996
997 if (!(byTsr1 & TSR1_TERR)) {
998 if (byTsr0 != 0) {
999 pr_debug(" Tx[%d] OK but has error. tsr1[%02X] tsr0[%02X]\n",
1000 (int)uIdx, byTsr1,
1001 byTsr0);
1002 }
1003 } else {
1004 pr_debug(" Tx[%d] dropped & tsr1[%02X] tsr0[%02X]\n",
1005 (int)uIdx, byTsr1, byTsr0);
1006 }
1007 }
1008
1009 if (byTsr1 & TSR1_TERR) {
1010 if ((pTD->pTDInfo->byFlags & TD_FLAGS_PRIV_SKB) != 0) {
1011 pr_debug(" Tx[%d] fail has error. tsr1[%02X] tsr0[%02X]\n",
1012 (int)uIdx, byTsr1, byTsr0);
1013 }
1014 }
1015 device_free_tx_buf(pDevice, pTD);
1016 pDevice->iTDUsed[uIdx]--;
1017 }
1018 }
1019
1020 pDevice->apTailTD[uIdx] = pTD;
1021
1022 return works;
1023 }
1024
1025 static void device_error(struct vnt_private *pDevice, unsigned short status)
1026 {
1027 if (status & ISR_FETALERR) {
1028 dev_err(&pDevice->pcid->dev, "Hardware fatal error\n");
1029
1030 MACbShutdown(pDevice->PortOffset);
1031 return;
1032 }
1033 }
1034
1035 static void device_free_tx_buf(struct vnt_private *pDevice, PSTxDesc pDesc)
1036 {
1037 PDEVICE_TD_INFO pTDInfo = pDesc->pTDInfo;
1038 struct sk_buff *skb = pTDInfo->skb;
1039
1040 // pre-allocated buf_dma can't be unmapped.
1041 if (pTDInfo->skb_dma && (pTDInfo->skb_dma != pTDInfo->buf_dma)) {
1042 pci_unmap_single(pDevice->pcid, pTDInfo->skb_dma, skb->len,
1043 PCI_DMA_TODEVICE);
1044 }
1045
1046 if (pTDInfo->byFlags & TD_FLAGS_NETIF_SKB)
1047 ieee80211_tx_status_irqsafe(pDevice->hw, skb);
1048 else
1049 dev_kfree_skb_irq(skb);
1050
1051 pTDInfo->skb_dma = 0;
1052 pTDInfo->skb = NULL;
1053 pTDInfo->byFlags = 0;
1054 }
1055
1056 static irqreturn_t device_intr(int irq, void *dev_instance)
1057 {
1058 struct vnt_private *pDevice = dev_instance;
1059 int max_count = 0;
1060 unsigned long dwMIBCounter = 0;
1061 unsigned char byOrgPageSel = 0;
1062 int handled = 0;
1063 int ii = 0;
1064 unsigned long flags;
1065
1066 MACvReadISR(pDevice->PortOffset, &pDevice->dwIsr);
1067
1068 if (pDevice->dwIsr == 0)
1069 return IRQ_RETVAL(handled);
1070
1071 if (pDevice->dwIsr == 0xffffffff) {
1072 pr_debug("dwIsr = 0xffff\n");
1073 return IRQ_RETVAL(handled);
1074 }
1075
1076 handled = 1;
1077 MACvIntDisable(pDevice->PortOffset);
1078
1079 spin_lock_irqsave(&pDevice->lock, flags);
1080
1081 //Make sure current page is 0
1082 VNSvInPortB(pDevice->PortOffset + MAC_REG_PAGE1SEL, &byOrgPageSel);
1083 if (byOrgPageSel == 1)
1084 MACvSelectPage0(pDevice->PortOffset);
1085 else
1086 byOrgPageSel = 0;
1087
1088 MACvReadMIBCounter(pDevice->PortOffset, &dwMIBCounter);
1089 // TBD....
1090 // Must do this after doing rx/tx, cause ISR bit is slow
1091 // than RD/TD write back
1092 // update ISR counter
1093 STAvUpdate802_11Counter(&pDevice->s802_11Counter, &pDevice->scStatistic , dwMIBCounter);
1094 while (pDevice->dwIsr != 0) {
1095 STAvUpdateIsrStatCounter(&pDevice->scStatistic, pDevice->dwIsr);
1096 MACvWriteISR(pDevice->PortOffset, pDevice->dwIsr);
1097
1098 if (pDevice->dwIsr & ISR_FETALERR) {
1099 pr_debug(" ISR_FETALERR\n");
1100 VNSvOutPortB(pDevice->PortOffset + MAC_REG_SOFTPWRCTL, 0);
1101 VNSvOutPortW(pDevice->PortOffset + MAC_REG_SOFTPWRCTL, SOFTPWRCTL_SWPECTI);
1102 device_error(pDevice, pDevice->dwIsr);
1103 }
1104
1105 if (pDevice->dwIsr & ISR_TBTT) {
1106 if (pDevice->vif &&
1107 pDevice->op_mode != NL80211_IFTYPE_ADHOC) {
1108 if (pDevice->bUpdateBBVGA &&
1109 !(pDevice->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) &&
1110 pDevice->vif->bss_conf.assoc &&
1111 pDevice->uCurrRSSI) {
1112 long ldBm;
1113
1114 RFvRSSITodBm(pDevice, (unsigned char) pDevice->uCurrRSSI, &ldBm);
1115 for (ii = 0; ii < BB_VGA_LEVEL; ii++) {
1116 if (ldBm < pDevice->ldBmThreshold[ii]) {
1117 pDevice->byBBVGANew = pDevice->abyBBVGA[ii];
1118 break;
1119 }
1120 }
1121 if (pDevice->byBBVGANew != pDevice->byBBVGACurrent) {
1122 pDevice->uBBVGADiffCount++;
1123 if (pDevice->uBBVGADiffCount == 1) {
1124 // first VGA diff gain
1125 BBvSetVGAGainOffset(pDevice, pDevice->byBBVGANew);
1126 pr_debug("First RSSI[%d] NewGain[%d] OldGain[%d] Count[%d]\n",
1127 (int)ldBm,
1128 pDevice->byBBVGANew,
1129 pDevice->byBBVGACurrent,
1130 (int)pDevice->uBBVGADiffCount);
1131 }
1132 if (pDevice->uBBVGADiffCount >= BB_VGA_CHANGE_THRESHOLD) {
1133 pr_debug("RSSI[%d] NewGain[%d] OldGain[%d] Count[%d]\n",
1134 (int)ldBm,
1135 pDevice->byBBVGANew,
1136 pDevice->byBBVGACurrent,
1137 (int)pDevice->uBBVGADiffCount);
1138 BBvSetVGAGainOffset(pDevice, pDevice->byBBVGANew);
1139 }
1140 } else {
1141 pDevice->uBBVGADiffCount = 1;
1142 }
1143 }
1144 }
1145
1146 pDevice->bBeaconSent = false;
1147 if (pDevice->bEnablePSMode)
1148 PSbIsNextTBTTWakeUp((void *)pDevice);
1149
1150 if ((pDevice->op_mode == NL80211_IFTYPE_AP ||
1151 pDevice->op_mode == NL80211_IFTYPE_ADHOC) &&
1152 pDevice->vif->bss_conf.enable_beacon) {
1153 MACvOneShotTimer1MicroSec(pDevice->PortOffset,
1154 (pDevice->vif->bss_conf.beacon_int - MAKE_BEACON_RESERVED) << 10);
1155 }
1156
1157 /* TODO: adhoc PS mode */
1158
1159 }
1160
1161 if (pDevice->dwIsr & ISR_BNTX) {
1162 if (pDevice->op_mode == NL80211_IFTYPE_ADHOC) {
1163 pDevice->bIsBeaconBufReadySet = false;
1164 pDevice->cbBeaconBufReadySetCnt = 0;
1165 }
1166
1167 pDevice->bBeaconSent = true;
1168 }
1169
1170 if (pDevice->dwIsr & ISR_RXDMA0)
1171 max_count += device_rx_srv(pDevice, TYPE_RXDMA0);
1172
1173 if (pDevice->dwIsr & ISR_RXDMA1)
1174 max_count += device_rx_srv(pDevice, TYPE_RXDMA1);
1175
1176 if (pDevice->dwIsr & ISR_TXDMA0)
1177 max_count += device_tx_srv(pDevice, TYPE_TXDMA0);
1178
1179 if (pDevice->dwIsr & ISR_AC0DMA)
1180 max_count += device_tx_srv(pDevice, TYPE_AC0DMA);
1181
1182 if (pDevice->dwIsr & ISR_SOFTTIMER1) {
1183 if (pDevice->vif) {
1184 if (pDevice->vif->bss_conf.enable_beacon)
1185 vnt_beacon_make(pDevice, pDevice->vif);
1186 }
1187 }
1188
1189 /* If both buffers available wake the queue */
1190 if (pDevice->vif) {
1191 if (AVAIL_TD(pDevice, TYPE_TXDMA0) &&
1192 AVAIL_TD(pDevice, TYPE_AC0DMA) &&
1193 ieee80211_queue_stopped(pDevice->hw, 0))
1194 ieee80211_wake_queues(pDevice->hw);
1195 }
1196
1197 MACvReadISR(pDevice->PortOffset, &pDevice->dwIsr);
1198
1199 MACvReceive0(pDevice->PortOffset);
1200 MACvReceive1(pDevice->PortOffset);
1201
1202 if (max_count > pDevice->sOpts.int_works)
1203 break;
1204 }
1205
1206 if (byOrgPageSel == 1)
1207 MACvSelectPage1(pDevice->PortOffset);
1208
1209 spin_unlock_irqrestore(&pDevice->lock, flags);
1210
1211 MACvIntEnable(pDevice->PortOffset, IMR_MASK_VALUE);
1212
1213 return IRQ_RETVAL(handled);
1214 }
1215
1216 static int vnt_tx_packet(struct vnt_private *priv, struct sk_buff *skb)
1217 {
1218 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1219 PSTxDesc head_td;
1220 u32 dma_idx = TYPE_AC0DMA;
1221 unsigned long flags;
1222
1223 spin_lock_irqsave(&priv->lock, flags);
1224
1225 if (!ieee80211_is_data(hdr->frame_control))
1226 dma_idx = TYPE_TXDMA0;
1227
1228 if (AVAIL_TD(priv, dma_idx) < 1) {
1229 spin_unlock_irqrestore(&priv->lock, flags);
1230 return -ENOMEM;
1231 }
1232
1233 head_td = priv->apCurrTD[dma_idx];
1234
1235 head_td->m_td1TD1.byTCR = (TCR_EDP|TCR_STP);
1236
1237 head_td->pTDInfo->skb = skb;
1238
1239 priv->iTDUsed[dma_idx]++;
1240
1241 /* Take ownership */
1242 wmb();
1243 head_td->m_td0TD0.f1Owner = OWNED_BY_NIC;
1244
1245 /* get Next */
1246 wmb();
1247 priv->apCurrTD[dma_idx] = head_td->next;
1248
1249 spin_unlock_irqrestore(&priv->lock, flags);
1250
1251 vnt_generate_fifo_header(priv, dma_idx, head_td, skb);
1252
1253 if (MACbIsRegBitsOn(priv->PortOffset, MAC_REG_PSCTL, PSCTL_PS))
1254 MACbPSWakeup(priv->PortOffset);
1255
1256 spin_lock_irqsave(&priv->lock, flags);
1257
1258 priv->bPWBitOn = false;
1259
1260 head_td->pTDInfo->byFlags = TD_FLAGS_NETIF_SKB;
1261
1262 if (dma_idx == TYPE_AC0DMA)
1263 MACvTransmitAC0(priv->PortOffset);
1264 else
1265 MACvTransmit0(priv->PortOffset);
1266
1267 spin_unlock_irqrestore(&priv->lock, flags);
1268
1269 return 0;
1270 }
1271
1272 static void vnt_tx_80211(struct ieee80211_hw *hw,
1273 struct ieee80211_tx_control *control,
1274 struct sk_buff *skb)
1275 {
1276 struct vnt_private *priv = hw->priv;
1277
1278 ieee80211_stop_queues(hw);
1279
1280 if (vnt_tx_packet(priv, skb)) {
1281 ieee80211_free_txskb(hw, skb);
1282
1283 ieee80211_wake_queues(hw);
1284 }
1285 }
1286
1287 static int vnt_start(struct ieee80211_hw *hw)
1288 {
1289 struct vnt_private *priv = hw->priv;
1290 int ret;
1291
1292 priv->rx_buf_sz = PKT_BUF_SZ;
1293 if (!device_init_rings(priv))
1294 return -ENOMEM;
1295
1296 ret = request_irq(priv->pcid->irq, &device_intr,
1297 IRQF_SHARED, "vt6655", priv);
1298 if (ret) {
1299 dev_dbg(&priv->pcid->dev, "failed to start irq\n");
1300 return ret;
1301 }
1302
1303 dev_dbg(&priv->pcid->dev, "call device init rd0 ring\n");
1304 device_init_rd0_ring(priv);
1305 device_init_rd1_ring(priv);
1306 device_init_td0_ring(priv);
1307 device_init_td1_ring(priv);
1308
1309 device_init_registers(priv);
1310
1311 dev_dbg(&priv->pcid->dev, "call MACvIntEnable\n");
1312 MACvIntEnable(priv->PortOffset, IMR_MASK_VALUE);
1313
1314 ieee80211_wake_queues(hw);
1315
1316 return 0;
1317 }
1318
1319 static void vnt_stop(struct ieee80211_hw *hw)
1320 {
1321 struct vnt_private *priv = hw->priv;
1322
1323 ieee80211_stop_queues(hw);
1324
1325 MACbShutdown(priv->PortOffset);
1326 MACbSoftwareReset(priv->PortOffset);
1327 CARDbRadioPowerOff(priv);
1328
1329 device_free_td0_ring(priv);
1330 device_free_td1_ring(priv);
1331 device_free_rd0_ring(priv);
1332 device_free_rd1_ring(priv);
1333 device_free_rings(priv);
1334
1335 free_irq(priv->pcid->irq, priv);
1336 }
1337
1338 static int vnt_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1339 {
1340 struct vnt_private *priv = hw->priv;
1341
1342 priv->vif = vif;
1343
1344 switch (vif->type) {
1345 case NL80211_IFTYPE_STATION:
1346 if (priv->bDiversityRegCtlON)
1347 device_init_diversity_timer(priv);
1348 break;
1349 case NL80211_IFTYPE_ADHOC:
1350 MACvRegBitsOff(priv->PortOffset, MAC_REG_RCR, RCR_UNICAST);
1351
1352 MACvRegBitsOn(priv->PortOffset, MAC_REG_HOSTCR, HOSTCR_ADHOC);
1353
1354 break;
1355 case NL80211_IFTYPE_AP:
1356 MACvRegBitsOff(priv->PortOffset, MAC_REG_RCR, RCR_UNICAST);
1357
1358 MACvRegBitsOn(priv->PortOffset, MAC_REG_HOSTCR, HOSTCR_AP);
1359
1360 break;
1361 default:
1362 return -EOPNOTSUPP;
1363 }
1364
1365 priv->op_mode = vif->type;
1366
1367 return 0;
1368 }
1369
1370 static void vnt_remove_interface(struct ieee80211_hw *hw,
1371 struct ieee80211_vif *vif)
1372 {
1373 struct vnt_private *priv = hw->priv;
1374
1375 switch (vif->type) {
1376 case NL80211_IFTYPE_STATION:
1377 if (priv->bDiversityRegCtlON) {
1378 del_timer(&priv->TimerSQ3Tmax1);
1379 del_timer(&priv->TimerSQ3Tmax2);
1380 del_timer(&priv->TimerSQ3Tmax3);
1381 }
1382 break;
1383 case NL80211_IFTYPE_ADHOC:
1384 MACvRegBitsOff(priv->PortOffset, MAC_REG_TCR, TCR_AUTOBCNTX);
1385 MACvRegBitsOff(priv->PortOffset,
1386 MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
1387 MACvRegBitsOff(priv->PortOffset, MAC_REG_HOSTCR, HOSTCR_ADHOC);
1388 break;
1389 case NL80211_IFTYPE_AP:
1390 MACvRegBitsOff(priv->PortOffset, MAC_REG_TCR, TCR_AUTOBCNTX);
1391 MACvRegBitsOff(priv->PortOffset,
1392 MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
1393 MACvRegBitsOff(priv->PortOffset, MAC_REG_HOSTCR, HOSTCR_AP);
1394 break;
1395 default:
1396 break;
1397 }
1398
1399 priv->op_mode = NL80211_IFTYPE_UNSPECIFIED;
1400 }
1401
1402
1403 static int vnt_config(struct ieee80211_hw *hw, u32 changed)
1404 {
1405 struct vnt_private *priv = hw->priv;
1406 struct ieee80211_conf *conf = &hw->conf;
1407 u8 bb_type;
1408
1409 if (changed & IEEE80211_CONF_CHANGE_PS) {
1410 if (conf->flags & IEEE80211_CONF_PS)
1411 PSvEnablePowerSaving(priv, conf->listen_interval);
1412 else
1413 PSvDisablePowerSaving(priv);
1414 }
1415
1416 if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) ||
1417 (conf->flags & IEEE80211_CONF_OFFCHANNEL)) {
1418 set_channel(priv, conf->chandef.chan->hw_value);
1419
1420 if (conf->chandef.chan->band == IEEE80211_BAND_5GHZ)
1421 bb_type = BB_TYPE_11A;
1422 else
1423 bb_type = BB_TYPE_11G;
1424
1425 if (priv->byBBType != bb_type) {
1426 priv->byBBType = bb_type;
1427
1428 CARDbSetPhyParameter(priv, priv->byBBType);
1429 }
1430 }
1431
1432 if (changed & IEEE80211_CONF_CHANGE_POWER) {
1433 if (priv->byBBType == BB_TYPE_11B)
1434 priv->wCurrentRate = RATE_1M;
1435 else
1436 priv->wCurrentRate = RATE_54M;
1437
1438 RFbSetPower(priv, priv->wCurrentRate,
1439 conf->chandef.chan->hw_value);
1440 }
1441
1442 return 0;
1443 }
1444
1445 static void vnt_bss_info_changed(struct ieee80211_hw *hw,
1446 struct ieee80211_vif *vif, struct ieee80211_bss_conf *conf,
1447 u32 changed)
1448 {
1449 struct vnt_private *priv = hw->priv;
1450
1451 priv->current_aid = conf->aid;
1452
1453 if (changed & BSS_CHANGED_BSSID)
1454 MACvWriteBSSIDAddress(priv->PortOffset, (u8 *)conf->bssid);
1455
1456 if (changed & BSS_CHANGED_BASIC_RATES) {
1457 priv->basic_rates = conf->basic_rates;
1458
1459 CARDvUpdateBasicTopRate(priv);
1460
1461 dev_dbg(&priv->pcid->dev,
1462 "basic rates %x\n", conf->basic_rates);
1463 }
1464
1465 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
1466 if (conf->use_short_preamble) {
1467 MACvEnableBarkerPreambleMd(priv->PortOffset);
1468 priv->byPreambleType = true;
1469 } else {
1470 MACvDisableBarkerPreambleMd(priv->PortOffset);
1471 priv->byPreambleType = false;
1472 }
1473 }
1474
1475 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
1476 if (conf->use_cts_prot)
1477 MACvEnableProtectMD(priv->PortOffset);
1478 else
1479 MACvDisableProtectMD(priv->PortOffset);
1480 }
1481
1482 if (changed & BSS_CHANGED_ERP_SLOT) {
1483 if (conf->use_short_slot)
1484 priv->bShortSlotTime = true;
1485 else
1486 priv->bShortSlotTime = false;
1487
1488 CARDbSetPhyParameter(priv, priv->byBBType);
1489 BBvSetVGAGainOffset(priv, priv->abyBBVGA[0]);
1490 }
1491
1492 if (changed & BSS_CHANGED_TXPOWER)
1493 RFbSetPower(priv, priv->wCurrentRate,
1494 conf->chandef.chan->hw_value);
1495
1496 if (changed & BSS_CHANGED_BEACON_ENABLED) {
1497 dev_dbg(&priv->pcid->dev,
1498 "Beacon enable %d\n", conf->enable_beacon);
1499
1500 if (conf->enable_beacon) {
1501 vnt_beacon_enable(priv, vif, conf);
1502
1503 MACvRegBitsOn(priv, MAC_REG_TCR, TCR_AUTOBCNTX);
1504 } else {
1505 MACvRegBitsOff(priv, MAC_REG_TCR, TCR_AUTOBCNTX);
1506 }
1507 }
1508
1509 if (changed & BSS_CHANGED_ASSOC && priv->op_mode != NL80211_IFTYPE_AP) {
1510 if (conf->assoc) {
1511 CARDbUpdateTSF(priv, conf->beacon_rate->hw_value,
1512 conf->sync_device_ts, conf->sync_tsf);
1513
1514 CARDbSetBeaconPeriod(priv, conf->beacon_int);
1515
1516 CARDvSetFirstNextTBTT(priv, conf->beacon_int);
1517 } else {
1518 VNSvOutPortB(priv->PortOffset + MAC_REG_TFTCTL,
1519 TFTCTL_TSFCNTRST);
1520 VNSvOutPortB(priv->PortOffset + MAC_REG_TFTCTL,
1521 TFTCTL_TSFCNTREN);
1522 }
1523 }
1524 }
1525
1526 static u64 vnt_prepare_multicast(struct ieee80211_hw *hw,
1527 struct netdev_hw_addr_list *mc_list)
1528 {
1529 struct vnt_private *priv = hw->priv;
1530 struct netdev_hw_addr *ha;
1531 u64 mc_filter = 0;
1532 u32 bit_nr = 0;
1533
1534 netdev_hw_addr_list_for_each(ha, mc_list) {
1535 bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
1536
1537 mc_filter |= 1ULL << (bit_nr & 0x3f);
1538 }
1539
1540 priv->mc_list_count = mc_list->count;
1541
1542 return mc_filter;
1543 }
1544
1545 static void vnt_configure(struct ieee80211_hw *hw,
1546 unsigned int changed_flags, unsigned int *total_flags, u64 multicast)
1547 {
1548 struct vnt_private *priv = hw->priv;
1549 u8 rx_mode = 0;
1550
1551 *total_flags &= FIF_ALLMULTI | FIF_OTHER_BSS | FIF_PROMISC_IN_BSS |
1552 FIF_BCN_PRBRESP_PROMISC;
1553
1554 VNSvInPortB(priv->PortOffset + MAC_REG_RCR, &rx_mode);
1555
1556 dev_dbg(&priv->pcid->dev, "rx mode in = %x\n", rx_mode);
1557
1558 if (changed_flags & FIF_PROMISC_IN_BSS) {
1559 /* unconditionally log net taps */
1560 if (*total_flags & FIF_PROMISC_IN_BSS)
1561 rx_mode |= RCR_UNICAST;
1562 else
1563 rx_mode &= ~RCR_UNICAST;
1564 }
1565
1566 if (changed_flags & FIF_ALLMULTI) {
1567 if (*total_flags & FIF_ALLMULTI) {
1568 if (priv->mc_list_count > 2) {
1569 MACvSelectPage1(priv->PortOffset);
1570
1571 VNSvOutPortD(priv->PortOffset +
1572 MAC_REG_MAR0, 0xffffffff);
1573 VNSvOutPortD(priv->PortOffset +
1574 MAC_REG_MAR0 + 4, 0xffffffff);
1575
1576 MACvSelectPage0(priv->PortOffset);
1577 } else {
1578 MACvSelectPage1(priv->PortOffset);
1579
1580 VNSvOutPortD(priv->PortOffset +
1581 MAC_REG_MAR0, (u32)multicast);
1582 VNSvOutPortD(priv->PortOffset +
1583 MAC_REG_MAR0 + 4,
1584 (u32)(multicast >> 32));
1585
1586 MACvSelectPage0(priv->PortOffset);
1587 }
1588
1589 rx_mode |= RCR_MULTICAST | RCR_BROADCAST;
1590 } else {
1591 rx_mode &= ~(RCR_MULTICAST | RCR_BROADCAST);
1592 }
1593 }
1594
1595 if (changed_flags & (FIF_OTHER_BSS | FIF_BCN_PRBRESP_PROMISC)) {
1596 rx_mode |= RCR_MULTICAST | RCR_BROADCAST;
1597
1598 if (*total_flags & (FIF_OTHER_BSS | FIF_BCN_PRBRESP_PROMISC))
1599 rx_mode &= ~RCR_BSSID;
1600 else
1601 rx_mode |= RCR_BSSID;
1602 }
1603
1604 VNSvOutPortB(priv->PortOffset + MAC_REG_RCR, rx_mode);
1605
1606 dev_dbg(&priv->pcid->dev, "rx mode out= %x\n", rx_mode);
1607 }
1608
1609 static int vnt_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
1610 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
1611 struct ieee80211_key_conf *key)
1612 {
1613 struct vnt_private *priv = hw->priv;
1614
1615 switch (cmd) {
1616 case SET_KEY:
1617 if (vnt_set_keys(hw, sta, vif, key))
1618 return -EOPNOTSUPP;
1619 break;
1620 case DISABLE_KEY:
1621 if (test_bit(key->hw_key_idx, &priv->key_entry_inuse))
1622 clear_bit(key->hw_key_idx, &priv->key_entry_inuse);
1623 default:
1624 break;
1625 }
1626
1627 return 0;
1628 }
1629
1630 static u64 vnt_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1631 {
1632 struct vnt_private *priv = hw->priv;
1633 u64 tsf;
1634
1635 CARDbGetCurrentTSF(priv, &tsf);
1636
1637 return tsf;
1638 }
1639
1640 static void vnt_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1641 u64 tsf)
1642 {
1643 struct vnt_private *priv = hw->priv;
1644
1645 CARDvUpdateNextTBTT(priv, tsf, vif->bss_conf.beacon_int);
1646 }
1647
1648 static void vnt_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1649 {
1650 struct vnt_private *priv = hw->priv;
1651
1652 /* reset TSF counter */
1653 VNSvOutPortB(priv->PortOffset + MAC_REG_TFTCTL, TFTCTL_TSFCNTRST);
1654 }
1655
1656 static const struct ieee80211_ops vnt_mac_ops = {
1657 .tx = vnt_tx_80211,
1658 .start = vnt_start,
1659 .stop = vnt_stop,
1660 .add_interface = vnt_add_interface,
1661 .remove_interface = vnt_remove_interface,
1662 .config = vnt_config,
1663 .bss_info_changed = vnt_bss_info_changed,
1664 .prepare_multicast = vnt_prepare_multicast,
1665 .configure_filter = vnt_configure,
1666 .set_key = vnt_set_key,
1667 .get_tsf = vnt_get_tsf,
1668 .set_tsf = vnt_set_tsf,
1669 .reset_tsf = vnt_reset_tsf,
1670 };
1671
1672 int vnt_init(struct vnt_private *priv)
1673 {
1674 SET_IEEE80211_PERM_ADDR(priv->hw, priv->abyCurrentNetAddr);
1675
1676 vnt_init_bands(priv);
1677
1678 if (ieee80211_register_hw(priv->hw))
1679 return -ENODEV;
1680
1681 priv->mac_hw = true;
1682
1683 CARDbRadioPowerOff(priv);
1684
1685 return 0;
1686 }
1687
1688 static int
1689 vt6655_probe(struct pci_dev *pcid, const struct pci_device_id *ent)
1690 {
1691 PCHIP_INFO pChip_info = (PCHIP_INFO)ent->driver_data;
1692 struct vnt_private *priv;
1693 struct ieee80211_hw *hw;
1694 struct wiphy *wiphy;
1695 int rc;
1696
1697 dev_notice(&pcid->dev,
1698 "%s Ver. %s\n", DEVICE_FULL_DRV_NAM, DEVICE_VERSION);
1699
1700 dev_notice(&pcid->dev,
1701 "Copyright (c) 2003 VIA Networking Technologies, Inc.\n");
1702
1703 hw = ieee80211_alloc_hw(sizeof(*priv), &vnt_mac_ops);
1704 if (!hw) {
1705 dev_err(&pcid->dev, "could not register ieee80211_hw\n");
1706 return -ENOMEM;
1707 }
1708
1709 priv = hw->priv;
1710
1711 vt6655_init_info(pcid, &priv, pChip_info);
1712
1713 priv->hw = hw;
1714
1715 SET_IEEE80211_DEV(priv->hw, &pcid->dev);
1716
1717 if (pci_enable_device(pcid)) {
1718 device_free_info(priv);
1719 return -ENODEV;
1720 }
1721
1722 dev_dbg(&pcid->dev,
1723 "Before get pci_info memaddr is %x\n", priv->memaddr);
1724
1725 if (!device_get_pci_info(priv, pcid)) {
1726 dev_err(&pcid->dev, ": Failed to find PCI device.\n");
1727 device_free_info(priv);
1728 return -ENODEV;
1729 }
1730
1731 #ifdef DEBUG
1732 dev_dbg(&pcid->dev,
1733 "after get pci_info memaddr is %x, io addr is %x,io_size is %d\n",
1734 priv->memaddr, priv->ioaddr, priv->io_size);
1735 {
1736 int i;
1737 u32 bar, len;
1738 u32 address[] = {
1739 PCI_BASE_ADDRESS_0,
1740 PCI_BASE_ADDRESS_1,
1741 PCI_BASE_ADDRESS_2,
1742 PCI_BASE_ADDRESS_3,
1743 PCI_BASE_ADDRESS_4,
1744 PCI_BASE_ADDRESS_5,
1745 0};
1746 for (i = 0; address[i]; i++) {
1747 pci_read_config_dword(pcid, address[i], &bar);
1748
1749 dev_dbg(&pcid->dev, "bar %d is %x\n", i, bar);
1750
1751 if (!bar) {
1752 dev_dbg(&pcid->dev,
1753 "bar %d not implemented\n", i);
1754 continue;
1755 }
1756
1757 if (bar & PCI_BASE_ADDRESS_SPACE_IO) {
1758 /* This is IO */
1759
1760 len = bar & (PCI_BASE_ADDRESS_IO_MASK & 0xffff);
1761 len = len & ~(len - 1);
1762
1763 dev_dbg(&pcid->dev,
1764 "IO space: len in IO %x, BAR %d\n",
1765 len, i);
1766 } else {
1767 len = bar & 0xfffffff0;
1768 len = ~len + 1;
1769
1770 dev_dbg(&pcid->dev,
1771 "len in MEM %x, BAR %d\n", len, i);
1772 }
1773 }
1774 }
1775 #endif
1776
1777 priv->PortOffset = ioremap(priv->memaddr & PCI_BASE_ADDRESS_MEM_MASK,
1778 priv->io_size);
1779 if (!priv->PortOffset) {
1780 dev_err(&pcid->dev, ": Failed to IO remapping ..\n");
1781 device_free_info(priv);
1782 return -ENODEV;
1783 }
1784
1785 rc = pci_request_regions(pcid, DEVICE_NAME);
1786 if (rc) {
1787 dev_err(&pcid->dev, ": Failed to find PCI device\n");
1788 device_free_info(priv);
1789 return -ENODEV;
1790 }
1791
1792 /* do reset */
1793 if (!MACbSoftwareReset(priv->PortOffset)) {
1794 dev_err(&pcid->dev, ": Failed to access MAC hardware..\n");
1795 device_free_info(priv);
1796 return -ENODEV;
1797 }
1798 /* initial to reload eeprom */
1799 MACvInitialize(priv->PortOffset);
1800 MACvReadEtherAddress(priv->PortOffset, priv->abyCurrentNetAddr);
1801
1802 device_get_options(priv);
1803 device_set_options(priv);
1804 /* Mask out the options cannot be set to the chip */
1805 priv->sOpts.flags &= pChip_info->flags;
1806
1807 /* Enable the chip specified capabilities */
1808 priv->flags = priv->sOpts.flags | (pChip_info->flags & 0xff000000UL);
1809
1810 wiphy = priv->hw->wiphy;
1811
1812 wiphy->frag_threshold = FRAG_THRESH_DEF;
1813 wiphy->rts_threshold = RTS_THRESH_DEF;
1814 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1815 BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_AP);
1816
1817 priv->hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
1818 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
1819 IEEE80211_HW_SIGNAL_DBM |
1820 IEEE80211_HW_TIMING_BEACON_ONLY;
1821
1822 priv->hw->max_signal = 100;
1823
1824 if (vnt_init(priv))
1825 return -ENODEV;
1826
1827 device_print_info(priv);
1828 pci_set_drvdata(pcid, priv);
1829
1830 return 0;
1831 }
1832
1833 /*------------------------------------------------------------------*/
1834
1835 #ifdef CONFIG_PM
1836 static int vt6655_suspend(struct pci_dev *pcid, pm_message_t state)
1837 {
1838 struct vnt_private *priv = pci_get_drvdata(pcid);
1839 unsigned long flags;
1840
1841 spin_lock_irqsave(&priv->lock, flags);
1842
1843 pci_save_state(pcid);
1844
1845 MACbShutdown(priv->PortOffset);
1846
1847 pci_disable_device(pcid);
1848 pci_set_power_state(pcid, pci_choose_state(pcid, state));
1849
1850 spin_unlock_irqrestore(&priv->lock, flags);
1851
1852 return 0;
1853 }
1854
1855 static int vt6655_resume(struct pci_dev *pcid)
1856 {
1857
1858 pci_set_power_state(pcid, PCI_D0);
1859 pci_enable_wake(pcid, PCI_D0, 0);
1860 pci_restore_state(pcid);
1861
1862 return 0;
1863 }
1864 #endif
1865
1866 MODULE_DEVICE_TABLE(pci, vt6655_pci_id_table);
1867
1868 static struct pci_driver device_driver = {
1869 .name = DEVICE_NAME,
1870 .id_table = vt6655_pci_id_table,
1871 .probe = vt6655_probe,
1872 .remove = vt6655_remove,
1873 #ifdef CONFIG_PM
1874 .suspend = vt6655_suspend,
1875 .resume = vt6655_resume,
1876 #endif
1877 };
1878
1879 static int __init vt6655_init_module(void)
1880 {
1881 int ret;
1882
1883 ret = pci_register_driver(&device_driver);
1884 #ifdef CONFIG_PM
1885 if (ret >= 0)
1886 register_reboot_notifier(&device_notifier);
1887 #endif
1888
1889 return ret;
1890 }
1891
1892 static void __exit vt6655_cleanup_module(void)
1893 {
1894 #ifdef CONFIG_PM
1895 unregister_reboot_notifier(&device_notifier);
1896 #endif
1897 pci_unregister_driver(&device_driver);
1898 }
1899
1900 module_init(vt6655_init_module);
1901 module_exit(vt6655_cleanup_module);
1902
1903 #ifdef CONFIG_PM
1904 static int
1905 device_notify_reboot(struct notifier_block *nb, unsigned long event, void *p)
1906 {
1907 struct pci_dev *pdev = NULL;
1908
1909 switch (event) {
1910 case SYS_DOWN:
1911 case SYS_HALT:
1912 case SYS_POWER_OFF:
1913 for_each_pci_dev(pdev) {
1914 if (pci_dev_driver(pdev) == &device_driver) {
1915 if (pci_get_drvdata(pdev))
1916 vt6655_suspend(pdev, PMSG_HIBERNATE);
1917 }
1918 }
1919 }
1920 return NOTIFY_DONE;
1921 }
1922 #endif
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