1 /******************************************************************************
2 *
3 * Copyright(c) 2009-2010 Realtek Corporation.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17 *
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
20 *
21 * Contact Information:
22 * wlanfae <wlanfae@realtek.com>
23 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
24 * Hsinchu 300, Taiwan.
25 *
26 * Larry Finger <Larry.Finger@lwfinger.net>
27 *
28 *****************************************************************************/
29
30 #include <linux/export.h>
31 #include "core.h"
32 #include "wifi.h"
33 #include "pci.h"
34 #include "base.h"
35 #include "ps.h"
36 #include "efuse.h"
37
38 static const u16 pcibridge_vendors[PCI_BRIDGE_VENDOR_MAX] = {
39 PCI_VENDOR_ID_INTEL,
40 PCI_VENDOR_ID_ATI,
41 PCI_VENDOR_ID_AMD,
42 PCI_VENDOR_ID_SI
43 };
44
45 static const u8 ac_to_hwq[] = {
46 VO_QUEUE,
47 VI_QUEUE,
48 BE_QUEUE,
49 BK_QUEUE
50 };
51
_rtl_mac_to_hwqueue(struct ieee80211_hw * hw,struct sk_buff * skb)52 static u8 _rtl_mac_to_hwqueue(struct ieee80211_hw *hw,
53 struct sk_buff *skb)
54 {
55 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
56 __le16 fc = rtl_get_fc(skb);
57 u8 queue_index = skb_get_queue_mapping(skb);
58
59 if (unlikely(ieee80211_is_beacon(fc)))
60 return BEACON_QUEUE;
61 if (ieee80211_is_mgmt(fc))
62 return MGNT_QUEUE;
63 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE)
64 if (ieee80211_is_nullfunc(fc))
65 return HIGH_QUEUE;
66
67 return ac_to_hwq[queue_index];
68 }
69
70 /* Update PCI dependent default settings*/
_rtl_pci_update_default_setting(struct ieee80211_hw * hw)71 static void _rtl_pci_update_default_setting(struct ieee80211_hw *hw)
72 {
73 struct rtl_priv *rtlpriv = rtl_priv(hw);
74 struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
75 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
76 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
77 u8 pcibridge_vendor = pcipriv->ndis_adapter.pcibridge_vendor;
78 u8 init_aspm;
79
80 ppsc->reg_rfps_level = 0;
81 ppsc->support_aspm = false;
82
83 /*Update PCI ASPM setting */
84 ppsc->const_amdpci_aspm = rtlpci->const_amdpci_aspm;
85 switch (rtlpci->const_pci_aspm) {
86 case 0:
87 /*No ASPM */
88 break;
89
90 case 1:
91 /*ASPM dynamically enabled/disable. */
92 ppsc->reg_rfps_level |= RT_RF_LPS_LEVEL_ASPM;
93 break;
94
95 case 2:
96 /*ASPM with Clock Req dynamically enabled/disable. */
97 ppsc->reg_rfps_level |= (RT_RF_LPS_LEVEL_ASPM |
98 RT_RF_OFF_LEVL_CLK_REQ);
99 break;
100
101 case 3:
102 /*
103 * Always enable ASPM and Clock Req
104 * from initialization to halt.
105 * */
106 ppsc->reg_rfps_level &= ~(RT_RF_LPS_LEVEL_ASPM);
107 ppsc->reg_rfps_level |= (RT_RF_PS_LEVEL_ALWAYS_ASPM |
108 RT_RF_OFF_LEVL_CLK_REQ);
109 break;
110
111 case 4:
112 /*
113 * Always enable ASPM without Clock Req
114 * from initialization to halt.
115 * */
116 ppsc->reg_rfps_level &= ~(RT_RF_LPS_LEVEL_ASPM |
117 RT_RF_OFF_LEVL_CLK_REQ);
118 ppsc->reg_rfps_level |= RT_RF_PS_LEVEL_ALWAYS_ASPM;
119 break;
120 }
121
122 ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_HALT_NIC;
123
124 /*Update Radio OFF setting */
125 switch (rtlpci->const_hwsw_rfoff_d3) {
126 case 1:
127 if (ppsc->reg_rfps_level & RT_RF_LPS_LEVEL_ASPM)
128 ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_ASPM;
129 break;
130
131 case 2:
132 if (ppsc->reg_rfps_level & RT_RF_LPS_LEVEL_ASPM)
133 ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_ASPM;
134 ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_HALT_NIC;
135 break;
136
137 case 3:
138 ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_PCI_D3;
139 break;
140 }
141
142 /*Set HW definition to determine if it supports ASPM. */
143 switch (rtlpci->const_support_pciaspm) {
144 case 0:{
145 /*Not support ASPM. */
146 bool support_aspm = false;
147 ppsc->support_aspm = support_aspm;
148 break;
149 }
150 case 1:{
151 /*Support ASPM. */
152 bool support_aspm = true;
153 bool support_backdoor = true;
154 ppsc->support_aspm = support_aspm;
155
156 /*if (priv->oem_id == RT_CID_TOSHIBA &&
157 !priv->ndis_adapter.amd_l1_patch)
158 support_backdoor = false; */
159
160 ppsc->support_backdoor = support_backdoor;
161
162 break;
163 }
164 case 2:
165 /*ASPM value set by chipset. */
166 if (pcibridge_vendor == PCI_BRIDGE_VENDOR_INTEL) {
167 bool support_aspm = true;
168 ppsc->support_aspm = support_aspm;
169 }
170 break;
171 default:
172 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
173 ("switch case not process\n"));
174 break;
175 }
176
177 /* toshiba aspm issue, toshiba will set aspm selfly
178 * so we should not set aspm in driver */
179 pci_read_config_byte(rtlpci->pdev, 0x80, &init_aspm);
180 if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8192SE &&
181 init_aspm == 0x43)
182 ppsc->support_aspm = false;
183 }
184
_rtl_pci_platform_switch_device_pci_aspm(struct ieee80211_hw * hw,u8 value)185 static bool _rtl_pci_platform_switch_device_pci_aspm(
186 struct ieee80211_hw *hw,
187 u8 value)
188 {
189 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
190 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
191
192 if (rtlhal->hw_type != HARDWARE_TYPE_RTL8192SE)
193 value |= 0x40;
194
195 pci_write_config_byte(rtlpci->pdev, 0x80, value);
196
197 return false;
198 }
199
200 /*When we set 0x01 to enable clk request. Set 0x0 to disable clk req.*/
_rtl_pci_switch_clk_req(struct ieee80211_hw * hw,u8 value)201 static bool _rtl_pci_switch_clk_req(struct ieee80211_hw *hw, u8 value)
202 {
203 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
204 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
205
206 pci_write_config_byte(rtlpci->pdev, 0x81, value);
207
208 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE)
209 udelay(100);
210
211 return true;
212 }
213
214 /*Disable RTL8192SE ASPM & Disable Pci Bridge ASPM*/
rtl_pci_disable_aspm(struct ieee80211_hw * hw)215 static void rtl_pci_disable_aspm(struct ieee80211_hw *hw)
216 {
217 struct rtl_priv *rtlpriv = rtl_priv(hw);
218 struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
219 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
220 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
221 u8 pcibridge_vendor = pcipriv->ndis_adapter.pcibridge_vendor;
222 u8 num4bytes = pcipriv->ndis_adapter.num4bytes;
223 /*Retrieve original configuration settings. */
224 u8 linkctrl_reg = pcipriv->ndis_adapter.linkctrl_reg;
225 u16 pcibridge_linkctrlreg = pcipriv->ndis_adapter.
226 pcibridge_linkctrlreg;
227 u16 aspmlevel = 0;
228 u8 tmp_u1b = 0;
229
230 if (!ppsc->support_aspm)
231 return;
232
233 if (pcibridge_vendor == PCI_BRIDGE_VENDOR_UNKNOWN) {
234 RT_TRACE(rtlpriv, COMP_POWER, DBG_TRACE,
235 ("PCI(Bridge) UNKNOWN.\n"));
236
237 return;
238 }
239
240 if (ppsc->reg_rfps_level & RT_RF_OFF_LEVL_CLK_REQ) {
241 RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_CLK_REQ);
242 _rtl_pci_switch_clk_req(hw, 0x0);
243 }
244
245 /*for promising device will in L0 state after an I/O. */
246 pci_read_config_byte(rtlpci->pdev, 0x80, &tmp_u1b);
247
248 /*Set corresponding value. */
249 aspmlevel |= BIT(0) | BIT(1);
250 linkctrl_reg &= ~aspmlevel;
251 pcibridge_linkctrlreg &= ~(BIT(0) | BIT(1));
252
253 _rtl_pci_platform_switch_device_pci_aspm(hw, linkctrl_reg);
254 udelay(50);
255
256 /*4 Disable Pci Bridge ASPM */
257 pci_write_config_byte(rtlpci->pdev, (num4bytes << 2),
258 pcibridge_linkctrlreg);
259
260 udelay(50);
261 }
262
263 /*
264 *Enable RTL8192SE ASPM & Enable Pci Bridge ASPM for
265 *power saving We should follow the sequence to enable
266 *RTL8192SE first then enable Pci Bridge ASPM
267 *or the system will show bluescreen.
268 */
rtl_pci_enable_aspm(struct ieee80211_hw * hw)269 static void rtl_pci_enable_aspm(struct ieee80211_hw *hw)
270 {
271 struct rtl_priv *rtlpriv = rtl_priv(hw);
272 struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
273 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
274 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
275 u8 pcibridge_busnum = pcipriv->ndis_adapter.pcibridge_busnum;
276 u8 pcibridge_devnum = pcipriv->ndis_adapter.pcibridge_devnum;
277 u8 pcibridge_funcnum = pcipriv->ndis_adapter.pcibridge_funcnum;
278 u8 pcibridge_vendor = pcipriv->ndis_adapter.pcibridge_vendor;
279 u8 num4bytes = pcipriv->ndis_adapter.num4bytes;
280 u16 aspmlevel;
281 u8 u_pcibridge_aspmsetting;
282 u8 u_device_aspmsetting;
283
284 if (!ppsc->support_aspm)
285 return;
286
287 if (pcibridge_vendor == PCI_BRIDGE_VENDOR_UNKNOWN) {
288 RT_TRACE(rtlpriv, COMP_POWER, DBG_TRACE,
289 ("PCI(Bridge) UNKNOWN.\n"));
290 return;
291 }
292
293 /*4 Enable Pci Bridge ASPM */
294
295 u_pcibridge_aspmsetting =
296 pcipriv->ndis_adapter.pcibridge_linkctrlreg |
297 rtlpci->const_hostpci_aspm_setting;
298
299 if (pcibridge_vendor == PCI_BRIDGE_VENDOR_INTEL)
300 u_pcibridge_aspmsetting &= ~BIT(0);
301
302 pci_write_config_byte(rtlpci->pdev, (num4bytes << 2),
303 u_pcibridge_aspmsetting);
304
305 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
306 ("PlatformEnableASPM():PciBridge busnumber[%x], "
307 "DevNumbe[%x], funcnumber[%x], Write reg[%x] = %x\n",
308 pcibridge_busnum, pcibridge_devnum, pcibridge_funcnum,
309 (pcipriv->ndis_adapter.pcibridge_pciehdr_offset + 0x10),
310 u_pcibridge_aspmsetting));
311
312 udelay(50);
313
314 /*Get ASPM level (with/without Clock Req) */
315 aspmlevel = rtlpci->const_devicepci_aspm_setting;
316 u_device_aspmsetting = pcipriv->ndis_adapter.linkctrl_reg;
317
318 /*_rtl_pci_platform_switch_device_pci_aspm(dev,*/
319 /*(priv->ndis_adapter.linkctrl_reg | ASPMLevel)); */
320
321 u_device_aspmsetting |= aspmlevel;
322
323 _rtl_pci_platform_switch_device_pci_aspm(hw, u_device_aspmsetting);
324
325 if (ppsc->reg_rfps_level & RT_RF_OFF_LEVL_CLK_REQ) {
326 _rtl_pci_switch_clk_req(hw, (ppsc->reg_rfps_level &
327 RT_RF_OFF_LEVL_CLK_REQ) ? 1 : 0);
328 RT_SET_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_CLK_REQ);
329 }
330 udelay(100);
331 }
332
rtl_pci_get_amd_l1_patch(struct ieee80211_hw * hw)333 static bool rtl_pci_get_amd_l1_patch(struct ieee80211_hw *hw)
334 {
335 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
336
337 bool status = false;
338 u8 offset_e0;
339 unsigned offset_e4;
340
341 pci_write_config_byte(rtlpci->pdev, 0xe0, 0xa0);
342
343 pci_read_config_byte(rtlpci->pdev, 0xe0, &offset_e0);
344
345 if (offset_e0 == 0xA0) {
346 pci_read_config_dword(rtlpci->pdev, 0xe4, &offset_e4);
347 if (offset_e4 & BIT(23))
348 status = true;
349 }
350
351 return status;
352 }
353
rtl_pci_get_linkcontrol_field(struct ieee80211_hw * hw)354 static void rtl_pci_get_linkcontrol_field(struct ieee80211_hw *hw)
355 {
356 struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
357 struct rtl_pci *rtlpci = rtl_pcidev(pcipriv);
358 u8 capabilityoffset = pcipriv->ndis_adapter.pcibridge_pciehdr_offset;
359 u8 linkctrl_reg;
360 u8 num4bbytes;
361
362 num4bbytes = (capabilityoffset + 0x10) / 4;
363
364 /*Read Link Control Register */
365 pci_read_config_byte(rtlpci->pdev, (num4bbytes << 2), &linkctrl_reg);
366
367 pcipriv->ndis_adapter.pcibridge_linkctrlreg = linkctrl_reg;
368 }
369
rtl_pci_parse_configuration(struct pci_dev * pdev,struct ieee80211_hw * hw)370 static void rtl_pci_parse_configuration(struct pci_dev *pdev,
371 struct ieee80211_hw *hw)
372 {
373 struct rtl_priv *rtlpriv = rtl_priv(hw);
374 struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
375
376 u8 tmp;
377 int pos;
378 u8 linkctrl_reg;
379
380 /*Link Control Register */
381 pos = pci_pcie_cap(pdev);
382 pci_read_config_byte(pdev, pos + PCI_EXP_LNKCTL, &linkctrl_reg);
383 pcipriv->ndis_adapter.linkctrl_reg = linkctrl_reg;
384
385 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
386 ("Link Control Register =%x\n",
387 pcipriv->ndis_adapter.linkctrl_reg));
388
389 pci_read_config_byte(pdev, 0x98, &tmp);
390 tmp |= BIT(4);
391 pci_write_config_byte(pdev, 0x98, tmp);
392
393 tmp = 0x17;
394 pci_write_config_byte(pdev, 0x70f, tmp);
395 }
396
rtl_pci_init_aspm(struct ieee80211_hw * hw)397 static void rtl_pci_init_aspm(struct ieee80211_hw *hw)
398 {
399 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
400
401 _rtl_pci_update_default_setting(hw);
402
403 if (ppsc->reg_rfps_level & RT_RF_PS_LEVEL_ALWAYS_ASPM) {
404 /*Always enable ASPM & Clock Req. */
405 rtl_pci_enable_aspm(hw);
406 RT_SET_PS_LEVEL(ppsc, RT_RF_PS_LEVEL_ALWAYS_ASPM);
407 }
408
409 }
410
_rtl_pci_io_handler_init(struct device * dev,struct ieee80211_hw * hw)411 static void _rtl_pci_io_handler_init(struct device *dev,
412 struct ieee80211_hw *hw)
413 {
414 struct rtl_priv *rtlpriv = rtl_priv(hw);
415
416 rtlpriv->io.dev = dev;
417
418 rtlpriv->io.write8_async = pci_write8_async;
419 rtlpriv->io.write16_async = pci_write16_async;
420 rtlpriv->io.write32_async = pci_write32_async;
421
422 rtlpriv->io.read8_sync = pci_read8_sync;
423 rtlpriv->io.read16_sync = pci_read16_sync;
424 rtlpriv->io.read32_sync = pci_read32_sync;
425
426 }
427
_rtl_pci_io_handler_release(struct ieee80211_hw * hw)428 static void _rtl_pci_io_handler_release(struct ieee80211_hw *hw)
429 {
430 }
431
_rtl_update_earlymode_info(struct ieee80211_hw * hw,struct sk_buff * skb,struct rtl_tcb_desc * tcb_desc,u8 tid)432 static bool _rtl_update_earlymode_info(struct ieee80211_hw *hw,
433 struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc, u8 tid)
434 {
435 struct rtl_priv *rtlpriv = rtl_priv(hw);
436 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
437 u8 additionlen = FCS_LEN;
438 struct sk_buff *next_skb;
439
440 /* here open is 4, wep/tkip is 8, aes is 12*/
441 if (info->control.hw_key)
442 additionlen += info->control.hw_key->icv_len;
443
444 /* The most skb num is 6 */
445 tcb_desc->empkt_num = 0;
446 spin_lock_bh(&rtlpriv->locks.waitq_lock);
447 skb_queue_walk(&rtlpriv->mac80211.skb_waitq[tid], next_skb) {
448 struct ieee80211_tx_info *next_info;
449
450 next_info = IEEE80211_SKB_CB(next_skb);
451 if (next_info->flags & IEEE80211_TX_CTL_AMPDU) {
452 tcb_desc->empkt_len[tcb_desc->empkt_num] =
453 next_skb->len + additionlen;
454 tcb_desc->empkt_num++;
455 } else {
456 break;
457 }
458
459 if (skb_queue_is_last(&rtlpriv->mac80211.skb_waitq[tid],
460 next_skb))
461 break;
462
463 if (tcb_desc->empkt_num >= 5)
464 break;
465 }
466 spin_unlock_bh(&rtlpriv->locks.waitq_lock);
467
468 return true;
469 }
470
471 /* just for early mode now */
_rtl_pci_tx_chk_waitq(struct ieee80211_hw * hw)472 static void _rtl_pci_tx_chk_waitq(struct ieee80211_hw *hw)
473 {
474 struct rtl_priv *rtlpriv = rtl_priv(hw);
475 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
476 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
477 struct sk_buff *skb = NULL;
478 struct ieee80211_tx_info *info = NULL;
479 int tid;
480
481 if (!rtlpriv->rtlhal.earlymode_enable)
482 return;
483
484 /* we juse use em for BE/BK/VI/VO */
485 for (tid = 7; tid >= 0; tid--) {
486 u8 hw_queue = ac_to_hwq[rtl_tid_to_ac(hw, tid)];
487 struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue];
488 while (!mac->act_scanning &&
489 rtlpriv->psc.rfpwr_state == ERFON) {
490 struct rtl_tcb_desc tcb_desc;
491 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
492
493 spin_lock_bh(&rtlpriv->locks.waitq_lock);
494 if (!skb_queue_empty(&mac->skb_waitq[tid]) &&
495 (ring->entries - skb_queue_len(&ring->queue) > 5)) {
496 skb = skb_dequeue(&mac->skb_waitq[tid]);
497 } else {
498 spin_unlock_bh(&rtlpriv->locks.waitq_lock);
499 break;
500 }
501 spin_unlock_bh(&rtlpriv->locks.waitq_lock);
502
503 /* Some macaddr can't do early mode. like
504 * multicast/broadcast/no_qos data */
505 info = IEEE80211_SKB_CB(skb);
506 if (info->flags & IEEE80211_TX_CTL_AMPDU)
507 _rtl_update_earlymode_info(hw, skb,
508 &tcb_desc, tid);
509
510 rtlpriv->intf_ops->adapter_tx(hw, skb, &tcb_desc);
511 }
512 }
513 }
514
515
_rtl_pci_tx_isr(struct ieee80211_hw * hw,int prio)516 static void _rtl_pci_tx_isr(struct ieee80211_hw *hw, int prio)
517 {
518 struct rtl_priv *rtlpriv = rtl_priv(hw);
519 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
520
521 struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[prio];
522
523 while (skb_queue_len(&ring->queue)) {
524 struct rtl_tx_desc *entry = &ring->desc[ring->idx];
525 struct sk_buff *skb;
526 struct ieee80211_tx_info *info;
527 __le16 fc;
528 u8 tid;
529
530 u8 own = (u8) rtlpriv->cfg->ops->get_desc((u8 *) entry, true,
531 HW_DESC_OWN);
532
533 /*
534 *beacon packet will only use the first
535 *descriptor defautly,and the own may not
536 *be cleared by the hardware
537 */
538 if (own)
539 return;
540 ring->idx = (ring->idx + 1) % ring->entries;
541
542 skb = __skb_dequeue(&ring->queue);
543 pci_unmap_single(rtlpci->pdev,
544 rtlpriv->cfg->ops->
545 get_desc((u8 *) entry, true,
546 HW_DESC_TXBUFF_ADDR),
547 skb->len, PCI_DMA_TODEVICE);
548
549 /* remove early mode header */
550 if (rtlpriv->rtlhal.earlymode_enable)
551 skb_pull(skb, EM_HDR_LEN);
552
553 RT_TRACE(rtlpriv, (COMP_INTR | COMP_SEND), DBG_TRACE,
554 ("new ring->idx:%d, "
555 "free: skb_queue_len:%d, free: seq:%x\n",
556 ring->idx,
557 skb_queue_len(&ring->queue),
558 *(u16 *) (skb->data + 22)));
559
560 if (prio == TXCMD_QUEUE) {
561 dev_kfree_skb(skb);
562 goto tx_status_ok;
563
564 }
565
566 /* for sw LPS, just after NULL skb send out, we can
567 * sure AP kown we are sleeped, our we should not let
568 * rf to sleep*/
569 fc = rtl_get_fc(skb);
570 if (ieee80211_is_nullfunc(fc)) {
571 if (ieee80211_has_pm(fc)) {
572 rtlpriv->mac80211.offchan_delay = true;
573 rtlpriv->psc.state_inap = true;
574 } else {
575 rtlpriv->psc.state_inap = false;
576 }
577 }
578
579 /* update tid tx pkt num */
580 tid = rtl_get_tid(skb);
581 if (tid <= 7)
582 rtlpriv->link_info.tidtx_inperiod[tid]++;
583
584 info = IEEE80211_SKB_CB(skb);
585 ieee80211_tx_info_clear_status(info);
586
587 info->flags |= IEEE80211_TX_STAT_ACK;
588 /*info->status.rates[0].count = 1; */
589
590 ieee80211_tx_status_irqsafe(hw, skb);
591
592 if ((ring->entries - skb_queue_len(&ring->queue))
593 == 2) {
594
595 RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
596 ("more desc left, wake"
597 "skb_queue@%d,ring->idx = %d,"
598 "skb_queue_len = 0x%d\n",
599 prio, ring->idx,
600 skb_queue_len(&ring->queue)));
601
602 ieee80211_wake_queue(hw,
603 skb_get_queue_mapping
604 (skb));
605 }
606 tx_status_ok:
607 skb = NULL;
608 }
609
610 if (((rtlpriv->link_info.num_rx_inperiod +
611 rtlpriv->link_info.num_tx_inperiod) > 8) ||
612 (rtlpriv->link_info.num_rx_inperiod > 2)) {
613 schedule_work(&rtlpriv->works.lps_leave_work);
614 }
615 }
616
_rtl_receive_one(struct ieee80211_hw * hw,struct sk_buff * skb,struct ieee80211_rx_status rx_status)617 static void _rtl_receive_one(struct ieee80211_hw *hw, struct sk_buff *skb,
618 struct ieee80211_rx_status rx_status)
619 {
620 struct rtl_priv *rtlpriv = rtl_priv(hw);
621 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
622 __le16 fc = rtl_get_fc(skb);
623 bool unicast = false;
624 struct sk_buff *uskb = NULL;
625 u8 *pdata;
626
627
628 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
629
630 if (is_broadcast_ether_addr(hdr->addr1)) {
631 ;/*TODO*/
632 } else if (is_multicast_ether_addr(hdr->addr1)) {
633 ;/*TODO*/
634 } else {
635 unicast = true;
636 rtlpriv->stats.rxbytesunicast += skb->len;
637 }
638
639 rtl_is_special_data(hw, skb, false);
640
641 if (ieee80211_is_data(fc)) {
642 rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX);
643
644 if (unicast)
645 rtlpriv->link_info.num_rx_inperiod++;
646 }
647
648 /* for sw lps */
649 rtl_swlps_beacon(hw, (void *)skb->data, skb->len);
650 rtl_recognize_peer(hw, (void *)skb->data, skb->len);
651 if ((rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP) &&
652 (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G) &&
653 (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)))
654 return;
655
656 if (unlikely(!rtl_action_proc(hw, skb, false)))
657 return;
658
659 uskb = dev_alloc_skb(skb->len + 128);
660 memcpy(IEEE80211_SKB_RXCB(uskb), &rx_status, sizeof(rx_status));
661 pdata = (u8 *)skb_put(uskb, skb->len);
662 memcpy(pdata, skb->data, skb->len);
663
664 ieee80211_rx_irqsafe(hw, uskb);
665 }
666
_rtl_pci_rx_interrupt(struct ieee80211_hw * hw)667 static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw)
668 {
669 struct rtl_priv *rtlpriv = rtl_priv(hw);
670 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
671 int rx_queue_idx = RTL_PCI_RX_MPDU_QUEUE;
672
673 struct ieee80211_rx_status rx_status = { 0 };
674 unsigned int count = rtlpci->rxringcount;
675 u8 own;
676 u8 tmp_one;
677 u32 bufferaddress;
678
679 struct rtl_stats stats = {
680 .signal = 0,
681 .noise = -98,
682 .rate = 0,
683 };
684 int index = rtlpci->rx_ring[rx_queue_idx].idx;
685
686 /*RX NORMAL PKT */
687 while (count--) {
688 /*rx descriptor */
689 struct rtl_rx_desc *pdesc = &rtlpci->rx_ring[rx_queue_idx].desc[
690 index];
691 /*rx pkt */
692 struct sk_buff *skb = rtlpci->rx_ring[rx_queue_idx].rx_buf[
693 index];
694 struct sk_buff *new_skb = NULL;
695
696 own = (u8) rtlpriv->cfg->ops->get_desc((u8 *) pdesc,
697 false, HW_DESC_OWN);
698
699 /*wait data to be filled by hardware */
700 if (own)
701 break;
702
703 rtlpriv->cfg->ops->query_rx_desc(hw, &stats,
704 &rx_status,
705 (u8 *) pdesc, skb);
706
707 if (stats.crc || stats.hwerror)
708 goto done;
709
710 new_skb = dev_alloc_skb(rtlpci->rxbuffersize);
711 if (unlikely(!new_skb)) {
712 RT_TRACE(rtlpriv, (COMP_INTR | COMP_RECV),
713 DBG_DMESG,
714 ("can't alloc skb for rx\n"));
715 goto done;
716 }
717
718 pci_unmap_single(rtlpci->pdev,
719 *((dma_addr_t *) skb->cb),
720 rtlpci->rxbuffersize,
721 PCI_DMA_FROMDEVICE);
722
723 skb_put(skb, rtlpriv->cfg->ops->get_desc((u8 *) pdesc, false,
724 HW_DESC_RXPKT_LEN));
725 skb_reserve(skb, stats.rx_drvinfo_size + stats.rx_bufshift);
726
727 /*
728 * NOTICE This can not be use for mac80211,
729 * this is done in mac80211 code,
730 * if you done here sec DHCP will fail
731 * skb_trim(skb, skb->len - 4);
732 */
733
734 _rtl_receive_one(hw, skb, rx_status);
735
736 if (((rtlpriv->link_info.num_rx_inperiod +
737 rtlpriv->link_info.num_tx_inperiod) > 8) ||
738 (rtlpriv->link_info.num_rx_inperiod > 2)) {
739 schedule_work(&rtlpriv->works.lps_leave_work);
740 }
741
742 dev_kfree_skb_any(skb);
743 skb = new_skb;
744
745 rtlpci->rx_ring[rx_queue_idx].rx_buf[index] = skb;
746 *((dma_addr_t *) skb->cb) =
747 pci_map_single(rtlpci->pdev, skb_tail_pointer(skb),
748 rtlpci->rxbuffersize,
749 PCI_DMA_FROMDEVICE);
750
751 done:
752 bufferaddress = (*((dma_addr_t *)skb->cb));
753 tmp_one = 1;
754 rtlpriv->cfg->ops->set_desc((u8 *) pdesc, false,
755 HW_DESC_RXBUFF_ADDR,
756 (u8 *)&bufferaddress);
757 rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false,
758 HW_DESC_RXPKT_LEN,
759 (u8 *)&rtlpci->rxbuffersize);
760
761 if (index == rtlpci->rxringcount - 1)
762 rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false,
763 HW_DESC_RXERO,
764 (u8 *)&tmp_one);
765
766 rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false, HW_DESC_RXOWN,
767 (u8 *)&tmp_one);
768
769 index = (index + 1) % rtlpci->rxringcount;
770 }
771
772 rtlpci->rx_ring[rx_queue_idx].idx = index;
773 }
774
_rtl_pci_interrupt(int irq,void * dev_id)775 static irqreturn_t _rtl_pci_interrupt(int irq, void *dev_id)
776 {
777 struct ieee80211_hw *hw = dev_id;
778 struct rtl_priv *rtlpriv = rtl_priv(hw);
779 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
780 unsigned long flags;
781 u32 inta = 0;
782 u32 intb = 0;
783 irqreturn_t ret = IRQ_HANDLED;
784
785 spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags);
786
787 /*read ISR: 4/8bytes */
788 rtlpriv->cfg->ops->interrupt_recognized(hw, &inta, &intb);
789
790 /*Shared IRQ or HW disappared */
791 if (!inta || inta == 0xffff) {
792 ret = IRQ_NONE;
793 goto done;
794 }
795
796 /*<1> beacon related */
797 if (inta & rtlpriv->cfg->maps[RTL_IMR_TBDOK]) {
798 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
799 ("beacon ok interrupt!\n"));
800 }
801
802 if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_TBDER])) {
803 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
804 ("beacon err interrupt!\n"));
805 }
806
807 if (inta & rtlpriv->cfg->maps[RTL_IMR_BDOK]) {
808 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
809 ("beacon interrupt!\n"));
810 }
811
812 if (inta & rtlpriv->cfg->maps[RTL_IMR_BcnInt]) {
813 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
814 ("prepare beacon for interrupt!\n"));
815 tasklet_schedule(&rtlpriv->works.irq_prepare_bcn_tasklet);
816 }
817
818 /*<3> Tx related */
819 if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_TXFOVW]))
820 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, ("IMR_TXFOVW!\n"));
821
822 if (inta & rtlpriv->cfg->maps[RTL_IMR_MGNTDOK]) {
823 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
824 ("Manage ok interrupt!\n"));
825 _rtl_pci_tx_isr(hw, MGNT_QUEUE);
826 }
827
828 if (inta & rtlpriv->cfg->maps[RTL_IMR_HIGHDOK]) {
829 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
830 ("HIGH_QUEUE ok interrupt!\n"));
831 _rtl_pci_tx_isr(hw, HIGH_QUEUE);
832 }
833
834 if (inta & rtlpriv->cfg->maps[RTL_IMR_BKDOK]) {
835 rtlpriv->link_info.num_tx_inperiod++;
836
837 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
838 ("BK Tx OK interrupt!\n"));
839 _rtl_pci_tx_isr(hw, BK_QUEUE);
840 }
841
842 if (inta & rtlpriv->cfg->maps[RTL_IMR_BEDOK]) {
843 rtlpriv->link_info.num_tx_inperiod++;
844
845 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
846 ("BE TX OK interrupt!\n"));
847 _rtl_pci_tx_isr(hw, BE_QUEUE);
848 }
849
850 if (inta & rtlpriv->cfg->maps[RTL_IMR_VIDOK]) {
851 rtlpriv->link_info.num_tx_inperiod++;
852
853 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
854 ("VI TX OK interrupt!\n"));
855 _rtl_pci_tx_isr(hw, VI_QUEUE);
856 }
857
858 if (inta & rtlpriv->cfg->maps[RTL_IMR_VODOK]) {
859 rtlpriv->link_info.num_tx_inperiod++;
860
861 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
862 ("Vo TX OK interrupt!\n"));
863 _rtl_pci_tx_isr(hw, VO_QUEUE);
864 }
865
866 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE) {
867 if (inta & rtlpriv->cfg->maps[RTL_IMR_COMDOK]) {
868 rtlpriv->link_info.num_tx_inperiod++;
869
870 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
871 ("CMD TX OK interrupt!\n"));
872 _rtl_pci_tx_isr(hw, TXCMD_QUEUE);
873 }
874 }
875
876 /*<2> Rx related */
877 if (inta & rtlpriv->cfg->maps[RTL_IMR_ROK]) {
878 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, ("Rx ok interrupt!\n"));
879 _rtl_pci_rx_interrupt(hw);
880 }
881
882 if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_RDU])) {
883 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
884 ("rx descriptor unavailable!\n"));
885 _rtl_pci_rx_interrupt(hw);
886 }
887
888 if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_RXFOVW])) {
889 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, ("rx overflow !\n"));
890 _rtl_pci_rx_interrupt(hw);
891 }
892
893 if (rtlpriv->rtlhal.earlymode_enable)
894 tasklet_schedule(&rtlpriv->works.irq_tasklet);
895
896 done:
897 spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
898 return ret;
899 }
900
_rtl_pci_irq_tasklet(struct ieee80211_hw * hw)901 static void _rtl_pci_irq_tasklet(struct ieee80211_hw *hw)
902 {
903 _rtl_pci_tx_chk_waitq(hw);
904 }
905
_rtl_pci_prepare_bcn_tasklet(struct ieee80211_hw * hw)906 static void _rtl_pci_prepare_bcn_tasklet(struct ieee80211_hw *hw)
907 {
908 struct rtl_priv *rtlpriv = rtl_priv(hw);
909 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
910 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
911 struct rtl8192_tx_ring *ring = NULL;
912 struct ieee80211_hdr *hdr = NULL;
913 struct ieee80211_tx_info *info = NULL;
914 struct sk_buff *pskb = NULL;
915 struct rtl_tx_desc *pdesc = NULL;
916 struct rtl_tcb_desc tcb_desc;
917 u8 temp_one = 1;
918
919 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
920 ring = &rtlpci->tx_ring[BEACON_QUEUE];
921 pskb = __skb_dequeue(&ring->queue);
922 if (pskb)
923 kfree_skb(pskb);
924
925 /*NB: the beacon data buffer must be 32-bit aligned. */
926 pskb = ieee80211_beacon_get(hw, mac->vif);
927 if (pskb == NULL)
928 return;
929 hdr = rtl_get_hdr(pskb);
930 info = IEEE80211_SKB_CB(pskb);
931 pdesc = &ring->desc[0];
932 rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *) pdesc,
933 info, pskb, BEACON_QUEUE, &tcb_desc);
934
935 __skb_queue_tail(&ring->queue, pskb);
936
937 rtlpriv->cfg->ops->set_desc((u8 *) pdesc, true, HW_DESC_OWN,
938 (u8 *)&temp_one);
939
940 return;
941 }
942
rtl_lps_leave_work_callback(struct work_struct * work)943 static void rtl_lps_leave_work_callback(struct work_struct *work)
944 {
945 struct rtl_works *rtlworks =
946 container_of(work, struct rtl_works, lps_leave_work);
947 struct ieee80211_hw *hw = rtlworks->hw;
948
949 rtl_lps_leave(hw);
950 }
951
_rtl_pci_init_trx_var(struct ieee80211_hw * hw)952 static void _rtl_pci_init_trx_var(struct ieee80211_hw *hw)
953 {
954 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
955 u8 i;
956
957 for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++)
958 rtlpci->txringcount[i] = RT_TXDESC_NUM;
959
960 /*
961 *we just alloc 2 desc for beacon queue,
962 *because we just need first desc in hw beacon.
963 */
964 rtlpci->txringcount[BEACON_QUEUE] = 2;
965
966 /*
967 *BE queue need more descriptor for performance
968 *consideration or, No more tx desc will happen,
969 *and may cause mac80211 mem leakage.
970 */
971 rtlpci->txringcount[BE_QUEUE] = RT_TXDESC_NUM_BE_QUEUE;
972
973 rtlpci->rxbuffersize = 9100; /*2048/1024; */
974 rtlpci->rxringcount = RTL_PCI_MAX_RX_COUNT; /*64; */
975 }
976
_rtl_pci_init_struct(struct ieee80211_hw * hw,struct pci_dev * pdev)977 static void _rtl_pci_init_struct(struct ieee80211_hw *hw,
978 struct pci_dev *pdev)
979 {
980 struct rtl_priv *rtlpriv = rtl_priv(hw);
981 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
982 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
983 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
984
985 rtlpci->up_first_time = true;
986 rtlpci->being_init_adapter = false;
987
988 rtlhal->hw = hw;
989 rtlpci->pdev = pdev;
990
991 /*Tx/Rx related var */
992 _rtl_pci_init_trx_var(hw);
993
994 /*IBSS*/ mac->beacon_interval = 100;
995
996 /*AMPDU*/
997 mac->min_space_cfg = 0;
998 mac->max_mss_density = 0;
999 /*set sane AMPDU defaults */
1000 mac->current_ampdu_density = 7;
1001 mac->current_ampdu_factor = 3;
1002
1003 /*QOS*/
1004 rtlpci->acm_method = eAcmWay2_SW;
1005
1006 /*task */
1007 tasklet_init(&rtlpriv->works.irq_tasklet,
1008 (void (*)(unsigned long))_rtl_pci_irq_tasklet,
1009 (unsigned long)hw);
1010 tasklet_init(&rtlpriv->works.irq_prepare_bcn_tasklet,
1011 (void (*)(unsigned long))_rtl_pci_prepare_bcn_tasklet,
1012 (unsigned long)hw);
1013 INIT_WORK(&rtlpriv->works.lps_leave_work, rtl_lps_leave_work_callback);
1014 }
1015
_rtl_pci_init_tx_ring(struct ieee80211_hw * hw,unsigned int prio,unsigned int entries)1016 static int _rtl_pci_init_tx_ring(struct ieee80211_hw *hw,
1017 unsigned int prio, unsigned int entries)
1018 {
1019 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1020 struct rtl_priv *rtlpriv = rtl_priv(hw);
1021 struct rtl_tx_desc *ring;
1022 dma_addr_t dma;
1023 u32 nextdescaddress;
1024 int i;
1025
1026 ring = pci_alloc_consistent(rtlpci->pdev,
1027 sizeof(*ring) * entries, &dma);
1028
1029 if (!ring || (unsigned long)ring & 0xFF) {
1030 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1031 ("Cannot allocate TX ring (prio = %d)\n", prio));
1032 return -ENOMEM;
1033 }
1034
1035 memset(ring, 0, sizeof(*ring) * entries);
1036 rtlpci->tx_ring[prio].desc = ring;
1037 rtlpci->tx_ring[prio].dma = dma;
1038 rtlpci->tx_ring[prio].idx = 0;
1039 rtlpci->tx_ring[prio].entries = entries;
1040 skb_queue_head_init(&rtlpci->tx_ring[prio].queue);
1041
1042 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
1043 ("queue:%d, ring_addr:%p\n", prio, ring));
1044
1045 for (i = 0; i < entries; i++) {
1046 nextdescaddress = (u32) dma +
1047 ((i + 1) % entries) *
1048 sizeof(*ring);
1049
1050 rtlpriv->cfg->ops->set_desc((u8 *)&(ring[i]),
1051 true, HW_DESC_TX_NEXTDESC_ADDR,
1052 (u8 *)&nextdescaddress);
1053 }
1054
1055 return 0;
1056 }
1057
_rtl_pci_init_rx_ring(struct ieee80211_hw * hw)1058 static int _rtl_pci_init_rx_ring(struct ieee80211_hw *hw)
1059 {
1060 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1061 struct rtl_priv *rtlpriv = rtl_priv(hw);
1062 struct rtl_rx_desc *entry = NULL;
1063 int i, rx_queue_idx;
1064 u8 tmp_one = 1;
1065
1066 /*
1067 *rx_queue_idx 0:RX_MPDU_QUEUE
1068 *rx_queue_idx 1:RX_CMD_QUEUE
1069 */
1070 for (rx_queue_idx = 0; rx_queue_idx < RTL_PCI_MAX_RX_QUEUE;
1071 rx_queue_idx++) {
1072 rtlpci->rx_ring[rx_queue_idx].desc =
1073 pci_alloc_consistent(rtlpci->pdev,
1074 sizeof(*rtlpci->rx_ring[rx_queue_idx].
1075 desc) * rtlpci->rxringcount,
1076 &rtlpci->rx_ring[rx_queue_idx].dma);
1077
1078 if (!rtlpci->rx_ring[rx_queue_idx].desc ||
1079 (unsigned long)rtlpci->rx_ring[rx_queue_idx].desc & 0xFF) {
1080 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1081 ("Cannot allocate RX ring\n"));
1082 return -ENOMEM;
1083 }
1084
1085 memset(rtlpci->rx_ring[rx_queue_idx].desc, 0,
1086 sizeof(*rtlpci->rx_ring[rx_queue_idx].desc) *
1087 rtlpci->rxringcount);
1088
1089 rtlpci->rx_ring[rx_queue_idx].idx = 0;
1090
1091 /* If amsdu_8k is disabled, set buffersize to 4096. This
1092 * change will reduce memory fragmentation.
1093 */
1094 if (rtlpci->rxbuffersize > 4096 &&
1095 rtlpriv->rtlhal.disable_amsdu_8k)
1096 rtlpci->rxbuffersize = 4096;
1097
1098 for (i = 0; i < rtlpci->rxringcount; i++) {
1099 struct sk_buff *skb =
1100 dev_alloc_skb(rtlpci->rxbuffersize);
1101 u32 bufferaddress;
1102 if (!skb)
1103 return 0;
1104 entry = &rtlpci->rx_ring[rx_queue_idx].desc[i];
1105
1106 /*skb->dev = dev; */
1107
1108 rtlpci->rx_ring[rx_queue_idx].rx_buf[i] = skb;
1109
1110 /*
1111 *just set skb->cb to mapping addr
1112 *for pci_unmap_single use
1113 */
1114 *((dma_addr_t *) skb->cb) =
1115 pci_map_single(rtlpci->pdev, skb_tail_pointer(skb),
1116 rtlpci->rxbuffersize,
1117 PCI_DMA_FROMDEVICE);
1118
1119 bufferaddress = (*((dma_addr_t *)skb->cb));
1120 rtlpriv->cfg->ops->set_desc((u8 *)entry, false,
1121 HW_DESC_RXBUFF_ADDR,
1122 (u8 *)&bufferaddress);
1123 rtlpriv->cfg->ops->set_desc((u8 *)entry, false,
1124 HW_DESC_RXPKT_LEN,
1125 (u8 *)&rtlpci->
1126 rxbuffersize);
1127 rtlpriv->cfg->ops->set_desc((u8 *) entry, false,
1128 HW_DESC_RXOWN,
1129 (u8 *)&tmp_one);
1130 }
1131
1132 rtlpriv->cfg->ops->set_desc((u8 *) entry, false,
1133 HW_DESC_RXERO, (u8 *)&tmp_one);
1134 }
1135 return 0;
1136 }
1137
_rtl_pci_free_tx_ring(struct ieee80211_hw * hw,unsigned int prio)1138 static void _rtl_pci_free_tx_ring(struct ieee80211_hw *hw,
1139 unsigned int prio)
1140 {
1141 struct rtl_priv *rtlpriv = rtl_priv(hw);
1142 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1143 struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[prio];
1144
1145 while (skb_queue_len(&ring->queue)) {
1146 struct rtl_tx_desc *entry = &ring->desc[ring->idx];
1147 struct sk_buff *skb = __skb_dequeue(&ring->queue);
1148
1149 pci_unmap_single(rtlpci->pdev,
1150 rtlpriv->cfg->
1151 ops->get_desc((u8 *) entry, true,
1152 HW_DESC_TXBUFF_ADDR),
1153 skb->len, PCI_DMA_TODEVICE);
1154 kfree_skb(skb);
1155 ring->idx = (ring->idx + 1) % ring->entries;
1156 }
1157
1158 pci_free_consistent(rtlpci->pdev,
1159 sizeof(*ring->desc) * ring->entries,
1160 ring->desc, ring->dma);
1161 ring->desc = NULL;
1162 }
1163
_rtl_pci_free_rx_ring(struct rtl_pci * rtlpci)1164 static void _rtl_pci_free_rx_ring(struct rtl_pci *rtlpci)
1165 {
1166 int i, rx_queue_idx;
1167
1168 /*rx_queue_idx 0:RX_MPDU_QUEUE */
1169 /*rx_queue_idx 1:RX_CMD_QUEUE */
1170 for (rx_queue_idx = 0; rx_queue_idx < RTL_PCI_MAX_RX_QUEUE;
1171 rx_queue_idx++) {
1172 for (i = 0; i < rtlpci->rxringcount; i++) {
1173 struct sk_buff *skb =
1174 rtlpci->rx_ring[rx_queue_idx].rx_buf[i];
1175 if (!skb)
1176 continue;
1177
1178 pci_unmap_single(rtlpci->pdev,
1179 *((dma_addr_t *) skb->cb),
1180 rtlpci->rxbuffersize,
1181 PCI_DMA_FROMDEVICE);
1182 kfree_skb(skb);
1183 }
1184
1185 pci_free_consistent(rtlpci->pdev,
1186 sizeof(*rtlpci->rx_ring[rx_queue_idx].
1187 desc) * rtlpci->rxringcount,
1188 rtlpci->rx_ring[rx_queue_idx].desc,
1189 rtlpci->rx_ring[rx_queue_idx].dma);
1190 rtlpci->rx_ring[rx_queue_idx].desc = NULL;
1191 }
1192 }
1193
_rtl_pci_init_trx_ring(struct ieee80211_hw * hw)1194 static int _rtl_pci_init_trx_ring(struct ieee80211_hw *hw)
1195 {
1196 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1197 int ret;
1198 int i;
1199
1200 ret = _rtl_pci_init_rx_ring(hw);
1201 if (ret)
1202 return ret;
1203
1204 for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++) {
1205 ret = _rtl_pci_init_tx_ring(hw, i,
1206 rtlpci->txringcount[i]);
1207 if (ret)
1208 goto err_free_rings;
1209 }
1210
1211 return 0;
1212
1213 err_free_rings:
1214 _rtl_pci_free_rx_ring(rtlpci);
1215
1216 for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++)
1217 if (rtlpci->tx_ring[i].desc)
1218 _rtl_pci_free_tx_ring(hw, i);
1219
1220 return 1;
1221 }
1222
_rtl_pci_deinit_trx_ring(struct ieee80211_hw * hw)1223 static int _rtl_pci_deinit_trx_ring(struct ieee80211_hw *hw)
1224 {
1225 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1226 u32 i;
1227
1228 /*free rx rings */
1229 _rtl_pci_free_rx_ring(rtlpci);
1230
1231 /*free tx rings */
1232 for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++)
1233 _rtl_pci_free_tx_ring(hw, i);
1234
1235 return 0;
1236 }
1237
rtl_pci_reset_trx_ring(struct ieee80211_hw * hw)1238 int rtl_pci_reset_trx_ring(struct ieee80211_hw *hw)
1239 {
1240 struct rtl_priv *rtlpriv = rtl_priv(hw);
1241 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1242 int i, rx_queue_idx;
1243 unsigned long flags;
1244 u8 tmp_one = 1;
1245
1246 /*rx_queue_idx 0:RX_MPDU_QUEUE */
1247 /*rx_queue_idx 1:RX_CMD_QUEUE */
1248 for (rx_queue_idx = 0; rx_queue_idx < RTL_PCI_MAX_RX_QUEUE;
1249 rx_queue_idx++) {
1250 /*
1251 *force the rx_ring[RX_MPDU_QUEUE/
1252 *RX_CMD_QUEUE].idx to the first one
1253 */
1254 if (rtlpci->rx_ring[rx_queue_idx].desc) {
1255 struct rtl_rx_desc *entry = NULL;
1256
1257 for (i = 0; i < rtlpci->rxringcount; i++) {
1258 entry = &rtlpci->rx_ring[rx_queue_idx].desc[i];
1259 rtlpriv->cfg->ops->set_desc((u8 *) entry,
1260 false,
1261 HW_DESC_RXOWN,
1262 (u8 *)&tmp_one);
1263 }
1264 rtlpci->rx_ring[rx_queue_idx].idx = 0;
1265 }
1266 }
1267
1268 /*
1269 *after reset, release previous pending packet,
1270 *and force the tx idx to the first one
1271 */
1272 spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags);
1273 for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++) {
1274 if (rtlpci->tx_ring[i].desc) {
1275 struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[i];
1276
1277 while (skb_queue_len(&ring->queue)) {
1278 struct rtl_tx_desc *entry =
1279 &ring->desc[ring->idx];
1280 struct sk_buff *skb =
1281 __skb_dequeue(&ring->queue);
1282
1283 pci_unmap_single(rtlpci->pdev,
1284 rtlpriv->cfg->ops->
1285 get_desc((u8 *)
1286 entry,
1287 true,
1288 HW_DESC_TXBUFF_ADDR),
1289 skb->len, PCI_DMA_TODEVICE);
1290 kfree_skb(skb);
1291 ring->idx = (ring->idx + 1) % ring->entries;
1292 }
1293 ring->idx = 0;
1294 }
1295 }
1296
1297 spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
1298
1299 return 0;
1300 }
1301
rtl_pci_tx_chk_waitq_insert(struct ieee80211_hw * hw,struct sk_buff * skb)1302 static bool rtl_pci_tx_chk_waitq_insert(struct ieee80211_hw *hw,
1303 struct sk_buff *skb)
1304 {
1305 struct rtl_priv *rtlpriv = rtl_priv(hw);
1306 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1307 struct ieee80211_sta *sta = info->control.sta;
1308 struct rtl_sta_info *sta_entry = NULL;
1309 u8 tid = rtl_get_tid(skb);
1310
1311 if (!sta)
1312 return false;
1313 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1314
1315 if (!rtlpriv->rtlhal.earlymode_enable)
1316 return false;
1317 if (sta_entry->tids[tid].agg.agg_state != RTL_AGG_OPERATIONAL)
1318 return false;
1319 if (_rtl_mac_to_hwqueue(hw, skb) > VO_QUEUE)
1320 return false;
1321 if (tid > 7)
1322 return false;
1323
1324 /* maybe every tid should be checked */
1325 if (!rtlpriv->link_info.higher_busytxtraffic[tid])
1326 return false;
1327
1328 spin_lock_bh(&rtlpriv->locks.waitq_lock);
1329 skb_queue_tail(&rtlpriv->mac80211.skb_waitq[tid], skb);
1330 spin_unlock_bh(&rtlpriv->locks.waitq_lock);
1331
1332 return true;
1333 }
1334
rtl_pci_tx(struct ieee80211_hw * hw,struct sk_buff * skb,struct rtl_tcb_desc * ptcb_desc)1335 static int rtl_pci_tx(struct ieee80211_hw *hw, struct sk_buff *skb,
1336 struct rtl_tcb_desc *ptcb_desc)
1337 {
1338 struct rtl_priv *rtlpriv = rtl_priv(hw);
1339 struct rtl_sta_info *sta_entry = NULL;
1340 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1341 struct ieee80211_sta *sta = info->control.sta;
1342 struct rtl8192_tx_ring *ring;
1343 struct rtl_tx_desc *pdesc;
1344 u8 idx;
1345 u8 hw_queue = _rtl_mac_to_hwqueue(hw, skb);
1346 unsigned long flags;
1347 struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1348 __le16 fc = rtl_get_fc(skb);
1349 u8 *pda_addr = hdr->addr1;
1350 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1351 /*ssn */
1352 u8 tid = 0;
1353 u16 seq_number = 0;
1354 u8 own;
1355 u8 temp_one = 1;
1356
1357 if (ieee80211_is_auth(fc)) {
1358 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, ("MAC80211_LINKING\n"));
1359 rtl_ips_nic_on(hw);
1360 }
1361
1362 if (rtlpriv->psc.sw_ps_enabled) {
1363 if (ieee80211_is_data(fc) && !ieee80211_is_nullfunc(fc) &&
1364 !ieee80211_has_pm(fc))
1365 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1366 }
1367
1368 rtl_action_proc(hw, skb, true);
1369
1370 if (is_multicast_ether_addr(pda_addr))
1371 rtlpriv->stats.txbytesmulticast += skb->len;
1372 else if (is_broadcast_ether_addr(pda_addr))
1373 rtlpriv->stats.txbytesbroadcast += skb->len;
1374 else
1375 rtlpriv->stats.txbytesunicast += skb->len;
1376
1377 spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags);
1378 ring = &rtlpci->tx_ring[hw_queue];
1379 if (hw_queue != BEACON_QUEUE)
1380 idx = (ring->idx + skb_queue_len(&ring->queue)) %
1381 ring->entries;
1382 else
1383 idx = 0;
1384
1385 pdesc = &ring->desc[idx];
1386 own = (u8) rtlpriv->cfg->ops->get_desc((u8 *) pdesc,
1387 true, HW_DESC_OWN);
1388
1389 if ((own == 1) && (hw_queue != BEACON_QUEUE)) {
1390 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
1391 ("No more TX desc@%d, ring->idx = %d,"
1392 "idx = %d, skb_queue_len = 0x%d\n",
1393 hw_queue, ring->idx, idx,
1394 skb_queue_len(&ring->queue)));
1395
1396 spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
1397 return skb->len;
1398 }
1399
1400 if (ieee80211_is_data_qos(fc)) {
1401 tid = rtl_get_tid(skb);
1402 if (sta) {
1403 sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1404 seq_number = (le16_to_cpu(hdr->seq_ctrl) &
1405 IEEE80211_SCTL_SEQ) >> 4;
1406 seq_number += 1;
1407
1408 if (!ieee80211_has_morefrags(hdr->frame_control))
1409 sta_entry->tids[tid].seq_number = seq_number;
1410 }
1411 }
1412
1413 if (ieee80211_is_data(fc))
1414 rtlpriv->cfg->ops->led_control(hw, LED_CTL_TX);
1415
1416 rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *)pdesc,
1417 info, skb, hw_queue, ptcb_desc);
1418
1419 __skb_queue_tail(&ring->queue, skb);
1420
1421 rtlpriv->cfg->ops->set_desc((u8 *)pdesc, true,
1422 HW_DESC_OWN, (u8 *)&temp_one);
1423
1424
1425 if ((ring->entries - skb_queue_len(&ring->queue)) < 2 &&
1426 hw_queue != BEACON_QUEUE) {
1427
1428 RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
1429 ("less desc left, stop skb_queue@%d, "
1430 "ring->idx = %d,"
1431 "idx = %d, skb_queue_len = 0x%d\n",
1432 hw_queue, ring->idx, idx,
1433 skb_queue_len(&ring->queue)));
1434
1435 ieee80211_stop_queue(hw, skb_get_queue_mapping(skb));
1436 }
1437
1438 spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
1439
1440 rtlpriv->cfg->ops->tx_polling(hw, hw_queue);
1441
1442 return 0;
1443 }
1444
rtl_pci_flush(struct ieee80211_hw * hw,bool drop)1445 static void rtl_pci_flush(struct ieee80211_hw *hw, bool drop)
1446 {
1447 struct rtl_priv *rtlpriv = rtl_priv(hw);
1448 struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
1449 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1450 u16 i = 0;
1451 int queue_id;
1452 struct rtl8192_tx_ring *ring;
1453
1454 for (queue_id = RTL_PCI_MAX_TX_QUEUE_COUNT - 1; queue_id >= 0;) {
1455 u32 queue_len;
1456 ring = &pcipriv->dev.tx_ring[queue_id];
1457 queue_len = skb_queue_len(&ring->queue);
1458 if (queue_len == 0 || queue_id == BEACON_QUEUE ||
1459 queue_id == TXCMD_QUEUE) {
1460 queue_id--;
1461 continue;
1462 } else {
1463 msleep(20);
1464 i++;
1465 }
1466
1467 /* we just wait 1s for all queues */
1468 if (rtlpriv->psc.rfpwr_state == ERFOFF ||
1469 is_hal_stop(rtlhal) || i >= 200)
1470 return;
1471 }
1472 }
1473
rtl_pci_deinit(struct ieee80211_hw * hw)1474 static void rtl_pci_deinit(struct ieee80211_hw *hw)
1475 {
1476 struct rtl_priv *rtlpriv = rtl_priv(hw);
1477 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1478
1479 _rtl_pci_deinit_trx_ring(hw);
1480
1481 synchronize_irq(rtlpci->pdev->irq);
1482 tasklet_kill(&rtlpriv->works.irq_tasklet);
1483 cancel_work_sync(&rtlpriv->works.lps_leave_work);
1484
1485 flush_workqueue(rtlpriv->works.rtl_wq);
1486 destroy_workqueue(rtlpriv->works.rtl_wq);
1487
1488 }
1489
rtl_pci_init(struct ieee80211_hw * hw,struct pci_dev * pdev)1490 static int rtl_pci_init(struct ieee80211_hw *hw, struct pci_dev *pdev)
1491 {
1492 struct rtl_priv *rtlpriv = rtl_priv(hw);
1493 int err;
1494
1495 _rtl_pci_init_struct(hw, pdev);
1496
1497 err = _rtl_pci_init_trx_ring(hw);
1498 if (err) {
1499 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1500 ("tx ring initialization failed"));
1501 return err;
1502 }
1503
1504 return 0;
1505 }
1506
rtl_pci_start(struct ieee80211_hw * hw)1507 static int rtl_pci_start(struct ieee80211_hw *hw)
1508 {
1509 struct rtl_priv *rtlpriv = rtl_priv(hw);
1510 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1511 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1512 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1513
1514 int err;
1515
1516 rtl_pci_reset_trx_ring(hw);
1517
1518 rtlpci->driver_is_goingto_unload = false;
1519 err = rtlpriv->cfg->ops->hw_init(hw);
1520 if (err) {
1521 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1522 ("Failed to config hardware!\n"));
1523 return err;
1524 }
1525
1526 rtlpriv->cfg->ops->enable_interrupt(hw);
1527 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, ("enable_interrupt OK\n"));
1528
1529 rtl_init_rx_config(hw);
1530
1531 /*should be after adapter start and interrupt enable. */
1532 set_hal_start(rtlhal);
1533
1534 RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC);
1535
1536 rtlpci->up_first_time = false;
1537
1538 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, ("OK\n"));
1539 return 0;
1540 }
1541
rtl_pci_stop(struct ieee80211_hw * hw)1542 static void rtl_pci_stop(struct ieee80211_hw *hw)
1543 {
1544 struct rtl_priv *rtlpriv = rtl_priv(hw);
1545 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1546 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1547 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1548 unsigned long flags;
1549 u8 RFInProgressTimeOut = 0;
1550
1551 /*
1552 *should be before disable interrupt&adapter
1553 *and will do it immediately.
1554 */
1555 set_hal_stop(rtlhal);
1556
1557 rtlpriv->cfg->ops->disable_interrupt(hw);
1558 cancel_work_sync(&rtlpriv->works.lps_leave_work);
1559
1560 spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags);
1561 while (ppsc->rfchange_inprogress) {
1562 spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flags);
1563 if (RFInProgressTimeOut > 100) {
1564 spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags);
1565 break;
1566 }
1567 mdelay(1);
1568 RFInProgressTimeOut++;
1569 spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags);
1570 }
1571 ppsc->rfchange_inprogress = true;
1572 spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flags);
1573
1574 rtlpci->driver_is_goingto_unload = true;
1575 rtlpriv->cfg->ops->hw_disable(hw);
1576 rtlpriv->cfg->ops->led_control(hw, LED_CTL_POWER_OFF);
1577
1578 spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags);
1579 ppsc->rfchange_inprogress = false;
1580 spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flags);
1581
1582 rtl_pci_enable_aspm(hw);
1583 }
1584
_rtl_pci_find_adapter(struct pci_dev * pdev,struct ieee80211_hw * hw)1585 static bool _rtl_pci_find_adapter(struct pci_dev *pdev,
1586 struct ieee80211_hw *hw)
1587 {
1588 struct rtl_priv *rtlpriv = rtl_priv(hw);
1589 struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
1590 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1591 struct pci_dev *bridge_pdev = pdev->bus->self;
1592 u16 venderid;
1593 u16 deviceid;
1594 u8 revisionid;
1595 u16 irqline;
1596 u8 tmp;
1597
1598 pcipriv->ndis_adapter.pcibridge_vendor = PCI_BRIDGE_VENDOR_UNKNOWN;
1599 venderid = pdev->vendor;
1600 deviceid = pdev->device;
1601 pci_read_config_byte(pdev, 0x8, &revisionid);
1602 pci_read_config_word(pdev, 0x3C, &irqline);
1603
1604 /* PCI ID 0x10ec:0x8192 occurs for both RTL8192E, which uses
1605 * r8192e_pci, and RTL8192SE, which uses this driver. If the
1606 * revision ID is RTL_PCI_REVISION_ID_8192PCIE (0x01), then
1607 * the correct driver is r8192e_pci, thus this routine should
1608 * return false.
1609 */
1610 if (deviceid == RTL_PCI_8192SE_DID &&
1611 revisionid == RTL_PCI_REVISION_ID_8192PCIE)
1612 return false;
1613
1614 if (deviceid == RTL_PCI_8192_DID ||
1615 deviceid == RTL_PCI_0044_DID ||
1616 deviceid == RTL_PCI_0047_DID ||
1617 deviceid == RTL_PCI_8192SE_DID ||
1618 deviceid == RTL_PCI_8174_DID ||
1619 deviceid == RTL_PCI_8173_DID ||
1620 deviceid == RTL_PCI_8172_DID ||
1621 deviceid == RTL_PCI_8171_DID) {
1622 switch (revisionid) {
1623 case RTL_PCI_REVISION_ID_8192PCIE:
1624 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1625 ("8192 PCI-E is found - "
1626 "vid/did=%x/%x\n", venderid, deviceid));
1627 rtlhal->hw_type = HARDWARE_TYPE_RTL8192E;
1628 break;
1629 case RTL_PCI_REVISION_ID_8192SE:
1630 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1631 ("8192SE is found - "
1632 "vid/did=%x/%x\n", venderid, deviceid));
1633 rtlhal->hw_type = HARDWARE_TYPE_RTL8192SE;
1634 break;
1635 default:
1636 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
1637 ("Err: Unknown device - "
1638 "vid/did=%x/%x\n", venderid, deviceid));
1639 rtlhal->hw_type = HARDWARE_TYPE_RTL8192SE;
1640 break;
1641
1642 }
1643 } else if (deviceid == RTL_PCI_8192CET_DID ||
1644 deviceid == RTL_PCI_8192CE_DID ||
1645 deviceid == RTL_PCI_8191CE_DID ||
1646 deviceid == RTL_PCI_8188CE_DID) {
1647 rtlhal->hw_type = HARDWARE_TYPE_RTL8192CE;
1648 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1649 ("8192C PCI-E is found - "
1650 "vid/did=%x/%x\n", venderid, deviceid));
1651 } else if (deviceid == RTL_PCI_8192DE_DID ||
1652 deviceid == RTL_PCI_8192DE_DID2) {
1653 rtlhal->hw_type = HARDWARE_TYPE_RTL8192DE;
1654 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1655 ("8192D PCI-E is found - "
1656 "vid/did=%x/%x\n", venderid, deviceid));
1657 } else {
1658 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
1659 ("Err: Unknown device -"
1660 " vid/did=%x/%x\n", venderid, deviceid));
1661
1662 rtlhal->hw_type = RTL_DEFAULT_HARDWARE_TYPE;
1663 }
1664
1665 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192DE) {
1666 if (revisionid == 0 || revisionid == 1) {
1667 if (revisionid == 0) {
1668 RT_TRACE(rtlpriv, COMP_INIT,
1669 DBG_LOUD, ("Find 92DE MAC0.\n"));
1670 rtlhal->interfaceindex = 0;
1671 } else if (revisionid == 1) {
1672 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
1673 ("Find 92DE MAC1.\n"));
1674 rtlhal->interfaceindex = 1;
1675 }
1676 } else {
1677 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
1678 ("Unknown device - "
1679 "VendorID/DeviceID=%x/%x, Revision=%x\n",
1680 venderid, deviceid, revisionid));
1681 rtlhal->interfaceindex = 0;
1682 }
1683 }
1684 /*find bus info */
1685 pcipriv->ndis_adapter.busnumber = pdev->bus->number;
1686 pcipriv->ndis_adapter.devnumber = PCI_SLOT(pdev->devfn);
1687 pcipriv->ndis_adapter.funcnumber = PCI_FUNC(pdev->devfn);
1688
1689 if (bridge_pdev) {
1690 /*find bridge info if available */
1691 pcipriv->ndis_adapter.pcibridge_vendorid = bridge_pdev->vendor;
1692 for (tmp = 0; tmp < PCI_BRIDGE_VENDOR_MAX; tmp++) {
1693 if (bridge_pdev->vendor == pcibridge_vendors[tmp]) {
1694 pcipriv->ndis_adapter.pcibridge_vendor = tmp;
1695 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1696 ("Pci Bridge Vendor is found index:"
1697 " %d\n", tmp));
1698 break;
1699 }
1700 }
1701 }
1702
1703 if (pcipriv->ndis_adapter.pcibridge_vendor !=
1704 PCI_BRIDGE_VENDOR_UNKNOWN) {
1705 pcipriv->ndis_adapter.pcibridge_busnum =
1706 bridge_pdev->bus->number;
1707 pcipriv->ndis_adapter.pcibridge_devnum =
1708 PCI_SLOT(bridge_pdev->devfn);
1709 pcipriv->ndis_adapter.pcibridge_funcnum =
1710 PCI_FUNC(bridge_pdev->devfn);
1711 pcipriv->ndis_adapter.pcibridge_pciehdr_offset =
1712 pci_pcie_cap(bridge_pdev);
1713 pcipriv->ndis_adapter.num4bytes =
1714 (pcipriv->ndis_adapter.pcibridge_pciehdr_offset + 0x10) / 4;
1715
1716 rtl_pci_get_linkcontrol_field(hw);
1717
1718 if (pcipriv->ndis_adapter.pcibridge_vendor ==
1719 PCI_BRIDGE_VENDOR_AMD) {
1720 pcipriv->ndis_adapter.amd_l1_patch =
1721 rtl_pci_get_amd_l1_patch(hw);
1722 }
1723 }
1724
1725 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1726 ("pcidev busnumber:devnumber:funcnumber:"
1727 "vendor:link_ctl %d:%d:%d:%x:%x\n",
1728 pcipriv->ndis_adapter.busnumber,
1729 pcipriv->ndis_adapter.devnumber,
1730 pcipriv->ndis_adapter.funcnumber,
1731 pdev->vendor, pcipriv->ndis_adapter.linkctrl_reg));
1732
1733 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1734 ("pci_bridge busnumber:devnumber:funcnumber:vendor:"
1735 "pcie_cap:link_ctl_reg:amd %d:%d:%d:%x:%x:%x:%x\n",
1736 pcipriv->ndis_adapter.pcibridge_busnum,
1737 pcipriv->ndis_adapter.pcibridge_devnum,
1738 pcipriv->ndis_adapter.pcibridge_funcnum,
1739 pcibridge_vendors[pcipriv->ndis_adapter.pcibridge_vendor],
1740 pcipriv->ndis_adapter.pcibridge_pciehdr_offset,
1741 pcipriv->ndis_adapter.pcibridge_linkctrlreg,
1742 pcipriv->ndis_adapter.amd_l1_patch));
1743
1744 rtl_pci_parse_configuration(pdev, hw);
1745
1746 return true;
1747 }
1748
rtl_pci_probe(struct pci_dev * pdev,const struct pci_device_id * id)1749 int __devinit rtl_pci_probe(struct pci_dev *pdev,
1750 const struct pci_device_id *id)
1751 {
1752 struct ieee80211_hw *hw = NULL;
1753
1754 struct rtl_priv *rtlpriv = NULL;
1755 struct rtl_pci_priv *pcipriv = NULL;
1756 struct rtl_pci *rtlpci;
1757 unsigned long pmem_start, pmem_len, pmem_flags;
1758 int err;
1759
1760 err = pci_enable_device(pdev);
1761 if (err) {
1762 RT_ASSERT(false,
1763 ("%s : Cannot enable new PCI device\n",
1764 pci_name(pdev)));
1765 return err;
1766 }
1767
1768 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
1769 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
1770 RT_ASSERT(false, ("Unable to obtain 32bit DMA "
1771 "for consistent allocations\n"));
1772 pci_disable_device(pdev);
1773 return -ENOMEM;
1774 }
1775 }
1776
1777 pci_set_master(pdev);
1778
1779 hw = ieee80211_alloc_hw(sizeof(struct rtl_pci_priv) +
1780 sizeof(struct rtl_priv), &rtl_ops);
1781 if (!hw) {
1782 RT_ASSERT(false,
1783 ("%s : ieee80211 alloc failed\n", pci_name(pdev)));
1784 err = -ENOMEM;
1785 goto fail1;
1786 }
1787
1788 SET_IEEE80211_DEV(hw, &pdev->dev);
1789 pci_set_drvdata(pdev, hw);
1790
1791 rtlpriv = hw->priv;
1792 pcipriv = (void *)rtlpriv->priv;
1793 pcipriv->dev.pdev = pdev;
1794
1795 /* init cfg & intf_ops */
1796 rtlpriv->rtlhal.interface = INTF_PCI;
1797 rtlpriv->cfg = (struct rtl_hal_cfg *)(id->driver_data);
1798 rtlpriv->intf_ops = &rtl_pci_ops;
1799
1800 /*
1801 *init dbgp flags before all
1802 *other functions, because we will
1803 *use it in other funtions like
1804 *RT_TRACE/RT_PRINT/RTL_PRINT_DATA
1805 *you can not use these macro
1806 *before this
1807 */
1808 rtl_dbgp_flag_init(hw);
1809
1810 /* MEM map */
1811 err = pci_request_regions(pdev, KBUILD_MODNAME);
1812 if (err) {
1813 RT_ASSERT(false, ("Can't obtain PCI resources\n"));
1814 return err;
1815 }
1816
1817 pmem_start = pci_resource_start(pdev, rtlpriv->cfg->bar_id);
1818 pmem_len = pci_resource_len(pdev, rtlpriv->cfg->bar_id);
1819 pmem_flags = pci_resource_flags(pdev, rtlpriv->cfg->bar_id);
1820
1821 /*shared mem start */
1822 rtlpriv->io.pci_mem_start =
1823 (unsigned long)pci_iomap(pdev,
1824 rtlpriv->cfg->bar_id, pmem_len);
1825 if (rtlpriv->io.pci_mem_start == 0) {
1826 RT_ASSERT(false, ("Can't map PCI mem\n"));
1827 goto fail2;
1828 }
1829
1830 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1831 ("mem mapped space: start: 0x%08lx len:%08lx "
1832 "flags:%08lx, after map:0x%08lx\n",
1833 pmem_start, pmem_len, pmem_flags,
1834 rtlpriv->io.pci_mem_start));
1835
1836 /* Disable Clk Request */
1837 pci_write_config_byte(pdev, 0x81, 0);
1838 /* leave D3 mode */
1839 pci_write_config_byte(pdev, 0x44, 0);
1840 pci_write_config_byte(pdev, 0x04, 0x06);
1841 pci_write_config_byte(pdev, 0x04, 0x07);
1842
1843 /* find adapter */
1844 if (!_rtl_pci_find_adapter(pdev, hw))
1845 goto fail3;
1846
1847 /* Init IO handler */
1848 _rtl_pci_io_handler_init(&pdev->dev, hw);
1849
1850 /*like read eeprom and so on */
1851 rtlpriv->cfg->ops->read_eeprom_info(hw);
1852
1853 if (rtlpriv->cfg->ops->init_sw_vars(hw)) {
1854 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1855 ("Can't init_sw_vars.\n"));
1856 goto fail3;
1857 }
1858
1859 rtlpriv->cfg->ops->init_sw_leds(hw);
1860
1861 /*aspm */
1862 rtl_pci_init_aspm(hw);
1863
1864 /* Init mac80211 sw */
1865 err = rtl_init_core(hw);
1866 if (err) {
1867 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1868 ("Can't allocate sw for mac80211.\n"));
1869 goto fail3;
1870 }
1871
1872 /* Init PCI sw */
1873 err = rtl_pci_init(hw, pdev);
1874 if (err) {
1875 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1876 ("Failed to init PCI.\n"));
1877 goto fail3;
1878 }
1879
1880 err = ieee80211_register_hw(hw);
1881 if (err) {
1882 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1883 ("Can't register mac80211 hw.\n"));
1884 goto fail3;
1885 } else {
1886 rtlpriv->mac80211.mac80211_registered = 1;
1887 }
1888
1889 err = sysfs_create_group(&pdev->dev.kobj, &rtl_attribute_group);
1890 if (err) {
1891 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1892 ("failed to create sysfs device attributes\n"));
1893 goto fail3;
1894 }
1895
1896 /*init rfkill */
1897 rtl_init_rfkill(hw);
1898
1899 rtlpci = rtl_pcidev(pcipriv);
1900 err = request_irq(rtlpci->pdev->irq, &_rtl_pci_interrupt,
1901 IRQF_SHARED, KBUILD_MODNAME, hw);
1902 if (err) {
1903 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1904 ("%s: failed to register IRQ handler\n",
1905 wiphy_name(hw->wiphy)));
1906 goto fail3;
1907 } else {
1908 rtlpci->irq_alloc = 1;
1909 }
1910
1911 set_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status);
1912 return 0;
1913
1914 fail3:
1915 pci_set_drvdata(pdev, NULL);
1916 rtl_deinit_core(hw);
1917 _rtl_pci_io_handler_release(hw);
1918 ieee80211_free_hw(hw);
1919
1920 if (rtlpriv->io.pci_mem_start != 0)
1921 pci_iounmap(pdev, (void __iomem *)rtlpriv->io.pci_mem_start);
1922
1923 fail2:
1924 pci_release_regions(pdev);
1925
1926 fail1:
1927
1928 pci_disable_device(pdev);
1929
1930 return -ENODEV;
1931
1932 }
1933 EXPORT_SYMBOL(rtl_pci_probe);
1934
rtl_pci_disconnect(struct pci_dev * pdev)1935 void rtl_pci_disconnect(struct pci_dev *pdev)
1936 {
1937 struct ieee80211_hw *hw = pci_get_drvdata(pdev);
1938 struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
1939 struct rtl_priv *rtlpriv = rtl_priv(hw);
1940 struct rtl_pci *rtlpci = rtl_pcidev(pcipriv);
1941 struct rtl_mac *rtlmac = rtl_mac(rtlpriv);
1942
1943 clear_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status);
1944
1945 sysfs_remove_group(&pdev->dev.kobj, &rtl_attribute_group);
1946
1947 /*ieee80211_unregister_hw will call ops_stop */
1948 if (rtlmac->mac80211_registered == 1) {
1949 ieee80211_unregister_hw(hw);
1950 rtlmac->mac80211_registered = 0;
1951 } else {
1952 rtl_deinit_deferred_work(hw);
1953 rtlpriv->intf_ops->adapter_stop(hw);
1954 }
1955
1956 /*deinit rfkill */
1957 rtl_deinit_rfkill(hw);
1958
1959 rtl_pci_deinit(hw);
1960 rtl_deinit_core(hw);
1961 _rtl_pci_io_handler_release(hw);
1962 rtlpriv->cfg->ops->deinit_sw_vars(hw);
1963
1964 if (rtlpci->irq_alloc) {
1965 free_irq(rtlpci->pdev->irq, hw);
1966 rtlpci->irq_alloc = 0;
1967 }
1968
1969 if (rtlpriv->io.pci_mem_start != 0) {
1970 pci_iounmap(pdev, (void __iomem *)rtlpriv->io.pci_mem_start);
1971 pci_release_regions(pdev);
1972 }
1973
1974 pci_disable_device(pdev);
1975
1976 rtl_pci_disable_aspm(hw);
1977
1978 pci_set_drvdata(pdev, NULL);
1979
1980 ieee80211_free_hw(hw);
1981 }
1982 EXPORT_SYMBOL(rtl_pci_disconnect);
1983
1984 /***************************************
1985 kernel pci power state define:
1986 PCI_D0 ((pci_power_t __force) 0)
1987 PCI_D1 ((pci_power_t __force) 1)
1988 PCI_D2 ((pci_power_t __force) 2)
1989 PCI_D3hot ((pci_power_t __force) 3)
1990 PCI_D3cold ((pci_power_t __force) 4)
1991 PCI_UNKNOWN ((pci_power_t __force) 5)
1992
1993 This function is called when system
1994 goes into suspend state mac80211 will
1995 call rtl_mac_stop() from the mac80211
1996 suspend function first, So there is
1997 no need to call hw_disable here.
1998 ****************************************/
rtl_pci_suspend(struct device * dev)1999 int rtl_pci_suspend(struct device *dev)
2000 {
2001 struct pci_dev *pdev = to_pci_dev(dev);
2002 struct ieee80211_hw *hw = pci_get_drvdata(pdev);
2003 struct rtl_priv *rtlpriv = rtl_priv(hw);
2004
2005 rtlpriv->cfg->ops->hw_suspend(hw);
2006 rtl_deinit_rfkill(hw);
2007
2008 return 0;
2009 }
2010 EXPORT_SYMBOL(rtl_pci_suspend);
2011
rtl_pci_resume(struct device * dev)2012 int rtl_pci_resume(struct device *dev)
2013 {
2014 struct pci_dev *pdev = to_pci_dev(dev);
2015 struct ieee80211_hw *hw = pci_get_drvdata(pdev);
2016 struct rtl_priv *rtlpriv = rtl_priv(hw);
2017
2018 rtlpriv->cfg->ops->hw_resume(hw);
2019 rtl_init_rfkill(hw);
2020 return 0;
2021 }
2022 EXPORT_SYMBOL(rtl_pci_resume);
2023
2024 struct rtl_intf_ops rtl_pci_ops = {
2025 .read_efuse_byte = read_efuse_byte,
2026 .adapter_start = rtl_pci_start,
2027 .adapter_stop = rtl_pci_stop,
2028 .adapter_tx = rtl_pci_tx,
2029 .flush = rtl_pci_flush,
2030 .reset_trx_ring = rtl_pci_reset_trx_ring,
2031 .waitq_insert = rtl_pci_tx_chk_waitq_insert,
2032
2033 .disable_aspm = rtl_pci_disable_aspm,
2034 .enable_aspm = rtl_pci_enable_aspm,
2035 };
2036