Merge branch 'for-linus' of git://git.kernel.dk/linux-block
[linux-2.6.git] / drivers / net / wireless / rtlwifi / pci.c
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 "core.h"
31 #include "wifi.h"
32 #include "pci.h"
33 #include "base.h"
34 #include "ps.h"
35 #include "efuse.h"
36
37 static const u16 pcibridge_vendors[PCI_BRIDGE_VENDOR_MAX] = {
38         INTEL_VENDOR_ID,
39         ATI_VENDOR_ID,
40         AMD_VENDOR_ID,
41         SIS_VENDOR_ID
42 };
43
44 static const u8 ac_to_hwq[] = {
45         VO_QUEUE,
46         VI_QUEUE,
47         BE_QUEUE,
48         BK_QUEUE
49 };
50
51 static u8 _rtl_mac_to_hwqueue(struct ieee80211_hw *hw,
52                        struct sk_buff *skb)
53 {
54         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
55         __le16 fc = rtl_get_fc(skb);
56         u8 queue_index = skb_get_queue_mapping(skb);
57
58         if (unlikely(ieee80211_is_beacon(fc)))
59                 return BEACON_QUEUE;
60         if (ieee80211_is_mgmt(fc))
61                 return MGNT_QUEUE;
62         if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE)
63                 if (ieee80211_is_nullfunc(fc))
64                         return HIGH_QUEUE;
65
66         return ac_to_hwq[queue_index];
67 }
68
69 /* Update PCI dependent default settings*/
70 static void _rtl_pci_update_default_setting(struct ieee80211_hw *hw)
71 {
72         struct rtl_priv *rtlpriv = rtl_priv(hw);
73         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
74         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
75         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
76         u8 pcibridge_vendor = pcipriv->ndis_adapter.pcibridge_vendor;
77         u8 init_aspm;
78
79         ppsc->reg_rfps_level = 0;
80         ppsc->support_aspm = 0;
81
82         /*Update PCI ASPM setting */
83         ppsc->const_amdpci_aspm = rtlpci->const_amdpci_aspm;
84         switch (rtlpci->const_pci_aspm) {
85         case 0:
86                 /*No ASPM */
87                 break;
88
89         case 1:
90                 /*ASPM dynamically enabled/disable. */
91                 ppsc->reg_rfps_level |= RT_RF_LPS_LEVEL_ASPM;
92                 break;
93
94         case 2:
95                 /*ASPM with Clock Req dynamically enabled/disable. */
96                 ppsc->reg_rfps_level |= (RT_RF_LPS_LEVEL_ASPM |
97                                          RT_RF_OFF_LEVL_CLK_REQ);
98                 break;
99
100         case 3:
101                 /*
102                  * Always enable ASPM and Clock Req
103                  * from initialization to halt.
104                  * */
105                 ppsc->reg_rfps_level &= ~(RT_RF_LPS_LEVEL_ASPM);
106                 ppsc->reg_rfps_level |= (RT_RF_PS_LEVEL_ALWAYS_ASPM |
107                                          RT_RF_OFF_LEVL_CLK_REQ);
108                 break;
109
110         case 4:
111                 /*
112                  * Always enable ASPM without Clock Req
113                  * from initialization to halt.
114                  * */
115                 ppsc->reg_rfps_level &= ~(RT_RF_LPS_LEVEL_ASPM |
116                                           RT_RF_OFF_LEVL_CLK_REQ);
117                 ppsc->reg_rfps_level |= RT_RF_PS_LEVEL_ALWAYS_ASPM;
118                 break;
119         }
120
121         ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_HALT_NIC;
122
123         /*Update Radio OFF setting */
124         switch (rtlpci->const_hwsw_rfoff_d3) {
125         case 1:
126                 if (ppsc->reg_rfps_level & RT_RF_LPS_LEVEL_ASPM)
127                         ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_ASPM;
128                 break;
129
130         case 2:
131                 if (ppsc->reg_rfps_level & RT_RF_LPS_LEVEL_ASPM)
132                         ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_ASPM;
133                 ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_HALT_NIC;
134                 break;
135
136         case 3:
137                 ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_PCI_D3;
138                 break;
139         }
140
141         /*Set HW definition to determine if it supports ASPM. */
142         switch (rtlpci->const_support_pciaspm) {
143         case 0:{
144                         /*Not support ASPM. */
145                         bool support_aspm = false;
146                         ppsc->support_aspm = support_aspm;
147                         break;
148                 }
149         case 1:{
150                         /*Support ASPM. */
151                         bool support_aspm = true;
152                         bool support_backdoor = true;
153                         ppsc->support_aspm = support_aspm;
154
155                         /*if (priv->oem_id == RT_CID_TOSHIBA &&
156                            !priv->ndis_adapter.amd_l1_patch)
157                            support_backdoor = false; */
158
159                         ppsc->support_backdoor = support_backdoor;
160
161                         break;
162                 }
163         case 2:
164                 /*ASPM value set by chipset. */
165                 if (pcibridge_vendor == PCI_BRIDGE_VENDOR_INTEL) {
166                         bool support_aspm = true;
167                         ppsc->support_aspm = support_aspm;
168                 }
169                 break;
170         default:
171                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
172                          ("switch case not process\n"));
173                 break;
174         }
175
176         /* toshiba aspm issue, toshiba will set aspm selfly
177          * so we should not set aspm in driver */
178         pci_read_config_byte(rtlpci->pdev, 0x80, &init_aspm);
179         if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8192SE &&
180                 init_aspm == 0x43)
181                 ppsc->support_aspm = false;
182 }
183
184 static bool _rtl_pci_platform_switch_device_pci_aspm(
185                         struct ieee80211_hw *hw,
186                         u8 value)
187 {
188         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
189         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
190
191         if (rtlhal->hw_type != HARDWARE_TYPE_RTL8192SE)
192                 value |= 0x40;
193
194         pci_write_config_byte(rtlpci->pdev, 0x80, value);
195
196         return false;
197 }
198
199 /*When we set 0x01 to enable clk request. Set 0x0 to disable clk req.*/
200 static bool _rtl_pci_switch_clk_req(struct ieee80211_hw *hw, u8 value)
201 {
202         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
203         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
204
205         pci_write_config_byte(rtlpci->pdev, 0x81, value);
206
207         if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE)
208                 udelay(100);
209
210         return true;
211 }
212
213 /*Disable RTL8192SE ASPM & Disable Pci Bridge ASPM*/
214 static void rtl_pci_disable_aspm(struct ieee80211_hw *hw)
215 {
216         struct rtl_priv *rtlpriv = rtl_priv(hw);
217         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
218         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
219         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
220         u8 pcibridge_vendor = pcipriv->ndis_adapter.pcibridge_vendor;
221         u32 pcicfg_addrport = pcipriv->ndis_adapter.pcicfg_addrport;
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         rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS,
258                                      pcicfg_addrport + (num4bytes << 2));
259         rtl_pci_raw_write_port_uchar(PCI_CONF_DATA, pcibridge_linkctrlreg);
260
261         udelay(50);
262 }
263
264 /*
265  *Enable RTL8192SE ASPM & Enable Pci Bridge ASPM for
266  *power saving We should follow the sequence to enable
267  *RTL8192SE first then enable Pci Bridge ASPM
268  *or the system will show bluescreen.
269  */
270 static void rtl_pci_enable_aspm(struct ieee80211_hw *hw)
271 {
272         struct rtl_priv *rtlpriv = rtl_priv(hw);
273         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
274         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
275         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
276         u8 pcibridge_busnum = pcipriv->ndis_adapter.pcibridge_busnum;
277         u8 pcibridge_devnum = pcipriv->ndis_adapter.pcibridge_devnum;
278         u8 pcibridge_funcnum = pcipriv->ndis_adapter.pcibridge_funcnum;
279         u8 pcibridge_vendor = pcipriv->ndis_adapter.pcibridge_vendor;
280         u32 pcicfg_addrport = pcipriv->ndis_adapter.pcicfg_addrport;
281         u8 num4bytes = pcipriv->ndis_adapter.num4bytes;
282         u16 aspmlevel;
283         u8 u_pcibridge_aspmsetting;
284         u8 u_device_aspmsetting;
285
286         if (!ppsc->support_aspm)
287                 return;
288
289         if (pcibridge_vendor == PCI_BRIDGE_VENDOR_UNKNOWN) {
290                 RT_TRACE(rtlpriv, COMP_POWER, DBG_TRACE,
291                          ("PCI(Bridge) UNKNOWN.\n"));
292                 return;
293         }
294
295         /*4 Enable Pci Bridge ASPM */
296         rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS,
297                                      pcicfg_addrport + (num4bytes << 2));
298
299         u_pcibridge_aspmsetting =
300             pcipriv->ndis_adapter.pcibridge_linkctrlreg |
301             rtlpci->const_hostpci_aspm_setting;
302
303         if (pcibridge_vendor == PCI_BRIDGE_VENDOR_INTEL)
304                 u_pcibridge_aspmsetting &= ~BIT(0);
305
306         rtl_pci_raw_write_port_uchar(PCI_CONF_DATA, u_pcibridge_aspmsetting);
307
308         RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
309                  ("PlatformEnableASPM():PciBridge busnumber[%x], "
310                   "DevNumbe[%x], funcnumber[%x], Write reg[%x] = %x\n",
311                   pcibridge_busnum, pcibridge_devnum, pcibridge_funcnum,
312                   (pcipriv->ndis_adapter.pcibridge_pciehdr_offset + 0x10),
313                   u_pcibridge_aspmsetting));
314
315         udelay(50);
316
317         /*Get ASPM level (with/without Clock Req) */
318         aspmlevel = rtlpci->const_devicepci_aspm_setting;
319         u_device_aspmsetting = pcipriv->ndis_adapter.linkctrl_reg;
320
321         /*_rtl_pci_platform_switch_device_pci_aspm(dev,*/
322         /*(priv->ndis_adapter.linkctrl_reg | ASPMLevel)); */
323
324         u_device_aspmsetting |= aspmlevel;
325
326         _rtl_pci_platform_switch_device_pci_aspm(hw, u_device_aspmsetting);
327
328         if (ppsc->reg_rfps_level & RT_RF_OFF_LEVL_CLK_REQ) {
329                 _rtl_pci_switch_clk_req(hw, (ppsc->reg_rfps_level &
330                                              RT_RF_OFF_LEVL_CLK_REQ) ? 1 : 0);
331                 RT_SET_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_CLK_REQ);
332         }
333         udelay(100);
334 }
335
336 static bool rtl_pci_get_amd_l1_patch(struct ieee80211_hw *hw)
337 {
338         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
339         u32 pcicfg_addrport = pcipriv->ndis_adapter.pcicfg_addrport;
340
341         bool status = false;
342         u8 offset_e0;
343         unsigned offset_e4;
344
345         rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS,
346                         pcicfg_addrport + 0xE0);
347         rtl_pci_raw_write_port_uchar(PCI_CONF_DATA, 0xA0);
348
349         rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS,
350                         pcicfg_addrport + 0xE0);
351         rtl_pci_raw_read_port_uchar(PCI_CONF_DATA, &offset_e0);
352
353         if (offset_e0 == 0xA0) {
354                 rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS,
355                                              pcicfg_addrport + 0xE4);
356                 rtl_pci_raw_read_port_ulong(PCI_CONF_DATA, &offset_e4);
357                 if (offset_e4 & BIT(23))
358                         status = true;
359         }
360
361         return status;
362 }
363
364 static void rtl_pci_get_linkcontrol_field(struct ieee80211_hw *hw)
365 {
366         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
367         u8 capabilityoffset = pcipriv->ndis_adapter.pcibridge_pciehdr_offset;
368         u32 pcicfg_addrport = pcipriv->ndis_adapter.pcicfg_addrport;
369         u8 linkctrl_reg;
370         u8 num4bbytes;
371
372         num4bbytes = (capabilityoffset + 0x10) / 4;
373
374         /*Read  Link Control Register */
375         rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS,
376                                      pcicfg_addrport + (num4bbytes << 2));
377         rtl_pci_raw_read_port_uchar(PCI_CONF_DATA, &linkctrl_reg);
378
379         pcipriv->ndis_adapter.pcibridge_linkctrlreg = linkctrl_reg;
380 }
381
382 static void rtl_pci_parse_configuration(struct pci_dev *pdev,
383                 struct ieee80211_hw *hw)
384 {
385         struct rtl_priv *rtlpriv = rtl_priv(hw);
386         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
387
388         u8 tmp;
389         int pos;
390         u8 linkctrl_reg;
391
392         /*Link Control Register */
393         pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
394         pci_read_config_byte(pdev, pos + PCI_EXP_LNKCTL, &linkctrl_reg);
395         pcipriv->ndis_adapter.linkctrl_reg = linkctrl_reg;
396
397         RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
398                  ("Link Control Register =%x\n",
399                   pcipriv->ndis_adapter.linkctrl_reg));
400
401         pci_read_config_byte(pdev, 0x98, &tmp);
402         tmp |= BIT(4);
403         pci_write_config_byte(pdev, 0x98, tmp);
404
405         tmp = 0x17;
406         pci_write_config_byte(pdev, 0x70f, tmp);
407 }
408
409 static void rtl_pci_init_aspm(struct ieee80211_hw *hw)
410 {
411         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
412
413         _rtl_pci_update_default_setting(hw);
414
415         if (ppsc->reg_rfps_level & RT_RF_PS_LEVEL_ALWAYS_ASPM) {
416                 /*Always enable ASPM & Clock Req. */
417                 rtl_pci_enable_aspm(hw);
418                 RT_SET_PS_LEVEL(ppsc, RT_RF_PS_LEVEL_ALWAYS_ASPM);
419         }
420
421 }
422
423 static void _rtl_pci_io_handler_init(struct device *dev,
424                                      struct ieee80211_hw *hw)
425 {
426         struct rtl_priv *rtlpriv = rtl_priv(hw);
427
428         rtlpriv->io.dev = dev;
429
430         rtlpriv->io.write8_async = pci_write8_async;
431         rtlpriv->io.write16_async = pci_write16_async;
432         rtlpriv->io.write32_async = pci_write32_async;
433
434         rtlpriv->io.read8_sync = pci_read8_sync;
435         rtlpriv->io.read16_sync = pci_read16_sync;
436         rtlpriv->io.read32_sync = pci_read32_sync;
437
438 }
439
440 static void _rtl_pci_io_handler_release(struct ieee80211_hw *hw)
441 {
442 }
443
444 static bool _rtl_update_earlymode_info(struct ieee80211_hw *hw,
445                 struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc, u8 tid)
446 {
447         struct rtl_priv *rtlpriv = rtl_priv(hw);
448         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
449         u8 additionlen = FCS_LEN;
450         struct sk_buff *next_skb;
451
452         /* here open is 4, wep/tkip is 8, aes is 12*/
453         if (info->control.hw_key)
454                 additionlen += info->control.hw_key->icv_len;
455
456         /* The most skb num is 6 */
457         tcb_desc->empkt_num = 0;
458         spin_lock_bh(&rtlpriv->locks.waitq_lock);
459         skb_queue_walk(&rtlpriv->mac80211.skb_waitq[tid], next_skb) {
460                 struct ieee80211_tx_info *next_info;
461
462                 next_info = IEEE80211_SKB_CB(next_skb);
463                 if (next_info->flags & IEEE80211_TX_CTL_AMPDU) {
464                         tcb_desc->empkt_len[tcb_desc->empkt_num] =
465                                 next_skb->len + additionlen;
466                         tcb_desc->empkt_num++;
467                 } else {
468                         break;
469                 }
470
471                 if (skb_queue_is_last(&rtlpriv->mac80211.skb_waitq[tid],
472                                       next_skb))
473                         break;
474
475                 if (tcb_desc->empkt_num >= 5)
476                         break;
477         }
478         spin_unlock_bh(&rtlpriv->locks.waitq_lock);
479
480         return true;
481 }
482
483 /* just for early mode now */
484 static void _rtl_pci_tx_chk_waitq(struct ieee80211_hw *hw)
485 {
486         struct rtl_priv *rtlpriv = rtl_priv(hw);
487         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
488         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
489         struct sk_buff *skb = NULL;
490         struct ieee80211_tx_info *info = NULL;
491         int tid; /* should be int */
492
493         if (!rtlpriv->rtlhal.earlymode_enable)
494                 return;
495
496         /* we juse use em for BE/BK/VI/VO */
497         for (tid = 7; tid >= 0; tid--) {
498                 u8 hw_queue = ac_to_hwq[rtl_tid_to_ac(hw, tid)];
499                 struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue];
500                 while (!mac->act_scanning &&
501                        rtlpriv->psc.rfpwr_state == ERFON) {
502                         struct rtl_tcb_desc tcb_desc;
503                         memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
504
505                         spin_lock_bh(&rtlpriv->locks.waitq_lock);
506                         if (!skb_queue_empty(&mac->skb_waitq[tid]) &&
507                            (ring->entries - skb_queue_len(&ring->queue) > 5)) {
508                                 skb = skb_dequeue(&mac->skb_waitq[tid]);
509                         } else {
510                                 spin_unlock_bh(&rtlpriv->locks.waitq_lock);
511                                 break;
512                         }
513                         spin_unlock_bh(&rtlpriv->locks.waitq_lock);
514
515                         /* Some macaddr can't do early mode. like
516                          * multicast/broadcast/no_qos data */
517                         info = IEEE80211_SKB_CB(skb);
518                         if (info->flags & IEEE80211_TX_CTL_AMPDU)
519                                 _rtl_update_earlymode_info(hw, skb,
520                                                            &tcb_desc, tid);
521
522                         rtlpriv->intf_ops->adapter_tx(hw, skb, &tcb_desc);
523                 }
524         }
525 }
526
527
528 static void _rtl_pci_tx_isr(struct ieee80211_hw *hw, int prio)
529 {
530         struct rtl_priv *rtlpriv = rtl_priv(hw);
531         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
532
533         struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[prio];
534
535         while (skb_queue_len(&ring->queue)) {
536                 struct rtl_tx_desc *entry = &ring->desc[ring->idx];
537                 struct sk_buff *skb;
538                 struct ieee80211_tx_info *info;
539                 __le16 fc;
540                 u8 tid;
541
542                 u8 own = (u8) rtlpriv->cfg->ops->get_desc((u8 *) entry, true,
543                                                           HW_DESC_OWN);
544
545                 /*
546                  *beacon packet will only use the first
547                  *descriptor defautly,and the own may not
548                  *be cleared by the hardware
549                  */
550                 if (own)
551                         return;
552                 ring->idx = (ring->idx + 1) % ring->entries;
553
554                 skb = __skb_dequeue(&ring->queue);
555                 pci_unmap_single(rtlpci->pdev,
556                                  rtlpriv->cfg->ops->
557                                              get_desc((u8 *) entry, true,
558                                                       HW_DESC_TXBUFF_ADDR),
559                                  skb->len, PCI_DMA_TODEVICE);
560
561                 /* remove early mode header */
562                 if (rtlpriv->rtlhal.earlymode_enable)
563                         skb_pull(skb, EM_HDR_LEN);
564
565                 RT_TRACE(rtlpriv, (COMP_INTR | COMP_SEND), DBG_TRACE,
566                          ("new ring->idx:%d, "
567                           "free: skb_queue_len:%d, free: seq:%x\n",
568                           ring->idx,
569                           skb_queue_len(&ring->queue),
570                           *(u16 *) (skb->data + 22)));
571
572                 if (prio == TXCMD_QUEUE) {
573                         dev_kfree_skb(skb);
574                         goto tx_status_ok;
575
576                 }
577
578                 /* for sw LPS, just after NULL skb send out, we can
579                  * sure AP kown we are sleeped, our we should not let
580                  * rf to sleep*/
581                 fc = rtl_get_fc(skb);
582                 if (ieee80211_is_nullfunc(fc)) {
583                         if (ieee80211_has_pm(fc)) {
584                                 rtlpriv->mac80211.offchan_deley = true;
585                                 rtlpriv->psc.state_inap = 1;
586                         } else {
587                                 rtlpriv->psc.state_inap = 0;
588                         }
589                 }
590
591                 /* update tid tx pkt num */
592                 tid = rtl_get_tid(skb);
593                 if (tid <= 7)
594                         rtlpriv->link_info.tidtx_inperiod[tid]++;
595
596                 info = IEEE80211_SKB_CB(skb);
597                 ieee80211_tx_info_clear_status(info);
598
599                 info->flags |= IEEE80211_TX_STAT_ACK;
600                 /*info->status.rates[0].count = 1; */
601
602                 ieee80211_tx_status_irqsafe(hw, skb);
603
604                 if ((ring->entries - skb_queue_len(&ring->queue))
605                                 == 2) {
606
607                         RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
608                                         ("more desc left, wake"
609                                          "skb_queue@%d,ring->idx = %d,"
610                                          "skb_queue_len = 0x%d\n",
611                                          prio, ring->idx,
612                                          skb_queue_len(&ring->queue)));
613
614                         ieee80211_wake_queue(hw,
615                                         skb_get_queue_mapping
616                                         (skb));
617                 }
618 tx_status_ok:
619                 skb = NULL;
620         }
621
622         if (((rtlpriv->link_info.num_rx_inperiod +
623                 rtlpriv->link_info.num_tx_inperiod) > 8) ||
624                 (rtlpriv->link_info.num_rx_inperiod > 2)) {
625                 rtl_lps_leave(hw);
626         }
627 }
628
629 static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw)
630 {
631         struct rtl_priv *rtlpriv = rtl_priv(hw);
632         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
633         int rx_queue_idx = RTL_PCI_RX_MPDU_QUEUE;
634
635         struct ieee80211_rx_status rx_status = { 0 };
636         unsigned int count = rtlpci->rxringcount;
637         u8 own;
638         u8 tmp_one;
639         u32 bufferaddress;
640         bool unicast = false;
641
642         struct rtl_stats stats = {
643                 .signal = 0,
644                 .noise = -98,
645                 .rate = 0,
646         };
647
648         /*RX NORMAL PKT */
649         while (count--) {
650                 /*rx descriptor */
651                 struct rtl_rx_desc *pdesc = &rtlpci->rx_ring[rx_queue_idx].desc[
652                                 rtlpci->rx_ring[rx_queue_idx].idx];
653                 /*rx pkt */
654                 struct sk_buff *skb = rtlpci->rx_ring[rx_queue_idx].rx_buf[
655                                 rtlpci->rx_ring[rx_queue_idx].idx];
656
657                 own = (u8) rtlpriv->cfg->ops->get_desc((u8 *) pdesc,
658                                                        false, HW_DESC_OWN);
659
660                 if (own) {
661                         /*wait data to be filled by hardware */
662                         return;
663                 } else {
664                         struct ieee80211_hdr *hdr;
665                         __le16 fc;
666                         struct sk_buff *new_skb = NULL;
667
668                         rtlpriv->cfg->ops->query_rx_desc(hw, &stats,
669                                                          &rx_status,
670                                                          (u8 *) pdesc, skb);
671
672                         pci_unmap_single(rtlpci->pdev,
673                                          *((dma_addr_t *) skb->cb),
674                                          rtlpci->rxbuffersize,
675                                          PCI_DMA_FROMDEVICE);
676
677                         skb_put(skb, rtlpriv->cfg->ops->get_desc((u8 *) pdesc,
678                                                          false,
679                                                          HW_DESC_RXPKT_LEN));
680                         skb_reserve(skb,
681                                     stats.rx_drvinfo_size + stats.rx_bufshift);
682
683                         /*
684                          *NOTICE This can not be use for mac80211,
685                          *this is done in mac80211 code,
686                          *if you done here sec DHCP will fail
687                          *skb_trim(skb, skb->len - 4);
688                          */
689
690                         hdr = rtl_get_hdr(skb);
691                         fc = rtl_get_fc(skb);
692
693                         if (!stats.crc || !stats.hwerror) {
694                                 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status,
695                                        sizeof(rx_status));
696
697                                 if (is_broadcast_ether_addr(hdr->addr1)) {
698                                         ;/*TODO*/
699                                 } else if (is_multicast_ether_addr(hdr->addr1)) {
700                                         ;/*TODO*/
701                                 } else {
702                                         unicast = true;
703                                         rtlpriv->stats.rxbytesunicast +=
704                                             skb->len;
705                                 }
706
707                                 rtl_is_special_data(hw, skb, false);
708
709                                 if (ieee80211_is_data(fc)) {
710                                         rtlpriv->cfg->ops->led_control(hw,
711                                                                LED_CTL_RX);
712
713                                         if (unicast)
714                                                 rtlpriv->link_info.
715                                                     num_rx_inperiod++;
716                                 }
717
718                                 /* for sw lps */
719                                 rtl_swlps_beacon(hw, (void *)skb->data,
720                                                  skb->len);
721                                 rtl_recognize_peer(hw, (void *)skb->data,
722                                                    skb->len);
723                                 if ((rtlpriv->mac80211.opmode ==
724                                      NL80211_IFTYPE_AP) &&
725                                     (rtlpriv->rtlhal.current_bandtype ==
726                                      BAND_ON_2_4G) &&
727                                      (ieee80211_is_beacon(fc) ||
728                                      ieee80211_is_probe_resp(fc))) {
729                                         dev_kfree_skb_any(skb);
730                                 } else {
731                                         if (unlikely(!rtl_action_proc(hw, skb,
732                                             false))) {
733                                                 dev_kfree_skb_any(skb);
734                                         } else {
735                                                 struct sk_buff *uskb = NULL;
736                                                 u8 *pdata;
737                                                 uskb = dev_alloc_skb(skb->len
738                                                                      + 128);
739                                                 memcpy(IEEE80211_SKB_RXCB(uskb),
740                                                        &rx_status,
741                                                        sizeof(rx_status));
742                                                 pdata = (u8 *)skb_put(uskb,
743                                                         skb->len);
744                                                 memcpy(pdata, skb->data,
745                                                        skb->len);
746                                                 dev_kfree_skb_any(skb);
747
748                                                 ieee80211_rx_irqsafe(hw, uskb);
749                                         }
750                                 }
751                         } else {
752                                 dev_kfree_skb_any(skb);
753                         }
754
755                         if (((rtlpriv->link_info.num_rx_inperiod +
756                                 rtlpriv->link_info.num_tx_inperiod) > 8) ||
757                                 (rtlpriv->link_info.num_rx_inperiod > 2)) {
758                                 rtl_lps_leave(hw);
759                         }
760
761                         new_skb = dev_alloc_skb(rtlpci->rxbuffersize);
762                         if (unlikely(!new_skb)) {
763                                 RT_TRACE(rtlpriv, (COMP_INTR | COMP_RECV),
764                                          DBG_DMESG,
765                                          ("can't alloc skb for rx\n"));
766                                 goto done;
767                         }
768                         skb = new_skb;
769                         /*skb->dev = dev; */
770
771                         rtlpci->rx_ring[rx_queue_idx].rx_buf[rtlpci->
772                                                              rx_ring
773                                                              [rx_queue_idx].
774                                                              idx] = skb;
775                         *((dma_addr_t *) skb->cb) =
776                             pci_map_single(rtlpci->pdev, skb_tail_pointer(skb),
777                                            rtlpci->rxbuffersize,
778                                            PCI_DMA_FROMDEVICE);
779
780                 }
781 done:
782                 bufferaddress = (*((dma_addr_t *)skb->cb));
783                 tmp_one = 1;
784                 rtlpriv->cfg->ops->set_desc((u8 *) pdesc, false,
785                                             HW_DESC_RXBUFF_ADDR,
786                                             (u8 *)&bufferaddress);
787                 rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false, HW_DESC_RXOWN,
788                                             (u8 *)&tmp_one);
789                 rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false,
790                                             HW_DESC_RXPKT_LEN,
791                                             (u8 *)&rtlpci->rxbuffersize);
792
793                 if (rtlpci->rx_ring[rx_queue_idx].idx ==
794                     rtlpci->rxringcount - 1)
795                         rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false,
796                                                     HW_DESC_RXERO,
797                                                     (u8 *)&tmp_one);
798
799                 rtlpci->rx_ring[rx_queue_idx].idx =
800                     (rtlpci->rx_ring[rx_queue_idx].idx + 1) %
801                     rtlpci->rxringcount;
802         }
803
804 }
805
806 static irqreturn_t _rtl_pci_interrupt(int irq, void *dev_id)
807 {
808         struct ieee80211_hw *hw = dev_id;
809         struct rtl_priv *rtlpriv = rtl_priv(hw);
810         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
811         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
812         unsigned long flags;
813         u32 inta = 0;
814         u32 intb = 0;
815
816         if (rtlpci->irq_enabled == 0)
817                 return IRQ_HANDLED;
818
819         spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags);
820
821         /*read ISR: 4/8bytes */
822         rtlpriv->cfg->ops->interrupt_recognized(hw, &inta, &intb);
823
824         /*Shared IRQ or HW disappared */
825         if (!inta || inta == 0xffff)
826                 goto done;
827
828         /*<1> beacon related */
829         if (inta & rtlpriv->cfg->maps[RTL_IMR_TBDOK]) {
830                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
831                          ("beacon ok interrupt!\n"));
832         }
833
834         if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_TBDER])) {
835                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
836                          ("beacon err interrupt!\n"));
837         }
838
839         if (inta & rtlpriv->cfg->maps[RTL_IMR_BDOK]) {
840                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
841                          ("beacon interrupt!\n"));
842         }
843
844         if (inta & rtlpriv->cfg->maps[RTL_IMR_BcnInt]) {
845                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
846                          ("prepare beacon for interrupt!\n"));
847                 tasklet_schedule(&rtlpriv->works.irq_prepare_bcn_tasklet);
848         }
849
850         /*<3> Tx related */
851         if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_TXFOVW]))
852                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, ("IMR_TXFOVW!\n"));
853
854         if (inta & rtlpriv->cfg->maps[RTL_IMR_MGNTDOK]) {
855                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
856                          ("Manage ok interrupt!\n"));
857                 _rtl_pci_tx_isr(hw, MGNT_QUEUE);
858         }
859
860         if (inta & rtlpriv->cfg->maps[RTL_IMR_HIGHDOK]) {
861                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
862                          ("HIGH_QUEUE ok interrupt!\n"));
863                 _rtl_pci_tx_isr(hw, HIGH_QUEUE);
864         }
865
866         if (inta & rtlpriv->cfg->maps[RTL_IMR_BKDOK]) {
867                 rtlpriv->link_info.num_tx_inperiod++;
868
869                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
870                          ("BK Tx OK interrupt!\n"));
871                 _rtl_pci_tx_isr(hw, BK_QUEUE);
872         }
873
874         if (inta & rtlpriv->cfg->maps[RTL_IMR_BEDOK]) {
875                 rtlpriv->link_info.num_tx_inperiod++;
876
877                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
878                          ("BE TX OK interrupt!\n"));
879                 _rtl_pci_tx_isr(hw, BE_QUEUE);
880         }
881
882         if (inta & rtlpriv->cfg->maps[RTL_IMR_VIDOK]) {
883                 rtlpriv->link_info.num_tx_inperiod++;
884
885                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
886                          ("VI TX OK interrupt!\n"));
887                 _rtl_pci_tx_isr(hw, VI_QUEUE);
888         }
889
890         if (inta & rtlpriv->cfg->maps[RTL_IMR_VODOK]) {
891                 rtlpriv->link_info.num_tx_inperiod++;
892
893                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
894                          ("Vo TX OK interrupt!\n"));
895                 _rtl_pci_tx_isr(hw, VO_QUEUE);
896         }
897
898         if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE) {
899                 if (inta & rtlpriv->cfg->maps[RTL_IMR_COMDOK]) {
900                         rtlpriv->link_info.num_tx_inperiod++;
901
902                         RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
903                                         ("CMD TX OK interrupt!\n"));
904                         _rtl_pci_tx_isr(hw, TXCMD_QUEUE);
905                 }
906         }
907
908         /*<2> Rx related */
909         if (inta & rtlpriv->cfg->maps[RTL_IMR_ROK]) {
910                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, ("Rx ok interrupt!\n"));
911                 _rtl_pci_rx_interrupt(hw);
912         }
913
914         if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_RDU])) {
915                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
916                          ("rx descriptor unavailable!\n"));
917                 _rtl_pci_rx_interrupt(hw);
918         }
919
920         if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_RXFOVW])) {
921                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, ("rx overflow !\n"));
922                 _rtl_pci_rx_interrupt(hw);
923         }
924
925         if (rtlpriv->rtlhal.earlymode_enable)
926                 tasklet_schedule(&rtlpriv->works.irq_tasklet);
927
928         spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
929         return IRQ_HANDLED;
930
931 done:
932         spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
933         return IRQ_HANDLED;
934 }
935
936 static void _rtl_pci_irq_tasklet(struct ieee80211_hw *hw)
937 {
938         _rtl_pci_tx_chk_waitq(hw);
939 }
940
941 static void _rtl_pci_prepare_bcn_tasklet(struct ieee80211_hw *hw)
942 {
943         struct rtl_priv *rtlpriv = rtl_priv(hw);
944         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
945         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
946         struct rtl8192_tx_ring *ring = NULL;
947         struct ieee80211_hdr *hdr = NULL;
948         struct ieee80211_tx_info *info = NULL;
949         struct sk_buff *pskb = NULL;
950         struct rtl_tx_desc *pdesc = NULL;
951         struct rtl_tcb_desc tcb_desc;
952         u8 temp_one = 1;
953
954         memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
955         ring = &rtlpci->tx_ring[BEACON_QUEUE];
956         pskb = __skb_dequeue(&ring->queue);
957         if (pskb)
958                 kfree_skb(pskb);
959
960         /*NB: the beacon data buffer must be 32-bit aligned. */
961         pskb = ieee80211_beacon_get(hw, mac->vif);
962         if (pskb == NULL)
963                 return;
964         hdr = rtl_get_hdr(pskb);
965         info = IEEE80211_SKB_CB(pskb);
966         pdesc = &ring->desc[0];
967         rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *) pdesc,
968                 info, pskb, BEACON_QUEUE, &tcb_desc);
969
970         __skb_queue_tail(&ring->queue, pskb);
971
972         rtlpriv->cfg->ops->set_desc((u8 *) pdesc, true, HW_DESC_OWN,
973                                     (u8 *)&temp_one);
974
975         return;
976 }
977
978 static void _rtl_pci_init_trx_var(struct ieee80211_hw *hw)
979 {
980         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
981         u8 i;
982
983         for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++)
984                 rtlpci->txringcount[i] = RT_TXDESC_NUM;
985
986         /*
987          *we just alloc 2 desc for beacon queue,
988          *because we just need first desc in hw beacon.
989          */
990         rtlpci->txringcount[BEACON_QUEUE] = 2;
991
992         /*
993          *BE queue need more descriptor for performance
994          *consideration or, No more tx desc will happen,
995          *and may cause mac80211 mem leakage.
996          */
997         rtlpci->txringcount[BE_QUEUE] = RT_TXDESC_NUM_BE_QUEUE;
998
999         rtlpci->rxbuffersize = 9100;    /*2048/1024; */
1000         rtlpci->rxringcount = RTL_PCI_MAX_RX_COUNT;     /*64; */
1001 }
1002
1003 static void _rtl_pci_init_struct(struct ieee80211_hw *hw,
1004                 struct pci_dev *pdev)
1005 {
1006         struct rtl_priv *rtlpriv = rtl_priv(hw);
1007         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1008         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1009         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1010
1011         rtlpci->up_first_time = true;
1012         rtlpci->being_init_adapter = false;
1013
1014         rtlhal->hw = hw;
1015         rtlpci->pdev = pdev;
1016
1017         /*Tx/Rx related var */
1018         _rtl_pci_init_trx_var(hw);
1019
1020         /*IBSS*/ mac->beacon_interval = 100;
1021
1022         /*AMPDU*/
1023         mac->min_space_cfg = 0;
1024         mac->max_mss_density = 0;
1025         /*set sane AMPDU defaults */
1026         mac->current_ampdu_density = 7;
1027         mac->current_ampdu_factor = 3;
1028
1029         /*QOS*/
1030         rtlpci->acm_method = eAcmWay2_SW;
1031
1032         /*task */
1033         tasklet_init(&rtlpriv->works.irq_tasklet,
1034                      (void (*)(unsigned long))_rtl_pci_irq_tasklet,
1035                      (unsigned long)hw);
1036         tasklet_init(&rtlpriv->works.irq_prepare_bcn_tasklet,
1037                      (void (*)(unsigned long))_rtl_pci_prepare_bcn_tasklet,
1038                      (unsigned long)hw);
1039 }
1040
1041 static int _rtl_pci_init_tx_ring(struct ieee80211_hw *hw,
1042                                  unsigned int prio, unsigned int entries)
1043 {
1044         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1045         struct rtl_priv *rtlpriv = rtl_priv(hw);
1046         struct rtl_tx_desc *ring;
1047         dma_addr_t dma;
1048         u32 nextdescaddress;
1049         int i;
1050
1051         ring = pci_alloc_consistent(rtlpci->pdev,
1052                                     sizeof(*ring) * entries, &dma);
1053
1054         if (!ring || (unsigned long)ring & 0xFF) {
1055                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1056                          ("Cannot allocate TX ring (prio = %d)\n", prio));
1057                 return -ENOMEM;
1058         }
1059
1060         memset(ring, 0, sizeof(*ring) * entries);
1061         rtlpci->tx_ring[prio].desc = ring;
1062         rtlpci->tx_ring[prio].dma = dma;
1063         rtlpci->tx_ring[prio].idx = 0;
1064         rtlpci->tx_ring[prio].entries = entries;
1065         skb_queue_head_init(&rtlpci->tx_ring[prio].queue);
1066
1067         RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
1068                  ("queue:%d, ring_addr:%p\n", prio, ring));
1069
1070         for (i = 0; i < entries; i++) {
1071                 nextdescaddress = (u32) dma +
1072                                               ((i + 1) % entries) *
1073                                               sizeof(*ring);
1074
1075                 rtlpriv->cfg->ops->set_desc((u8 *)&(ring[i]),
1076                                             true, HW_DESC_TX_NEXTDESC_ADDR,
1077                                             (u8 *)&nextdescaddress);
1078         }
1079
1080         return 0;
1081 }
1082
1083 static int _rtl_pci_init_rx_ring(struct ieee80211_hw *hw)
1084 {
1085         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1086         struct rtl_priv *rtlpriv = rtl_priv(hw);
1087         struct rtl_rx_desc *entry = NULL;
1088         int i, rx_queue_idx;
1089         u8 tmp_one = 1;
1090
1091         /*
1092          *rx_queue_idx 0:RX_MPDU_QUEUE
1093          *rx_queue_idx 1:RX_CMD_QUEUE
1094          */
1095         for (rx_queue_idx = 0; rx_queue_idx < RTL_PCI_MAX_RX_QUEUE;
1096              rx_queue_idx++) {
1097                 rtlpci->rx_ring[rx_queue_idx].desc =
1098                     pci_alloc_consistent(rtlpci->pdev,
1099                                          sizeof(*rtlpci->rx_ring[rx_queue_idx].
1100                                                 desc) * rtlpci->rxringcount,
1101                                          &rtlpci->rx_ring[rx_queue_idx].dma);
1102
1103                 if (!rtlpci->rx_ring[rx_queue_idx].desc ||
1104                     (unsigned long)rtlpci->rx_ring[rx_queue_idx].desc & 0xFF) {
1105                         RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1106                                  ("Cannot allocate RX ring\n"));
1107                         return -ENOMEM;
1108                 }
1109
1110                 memset(rtlpci->rx_ring[rx_queue_idx].desc, 0,
1111                        sizeof(*rtlpci->rx_ring[rx_queue_idx].desc) *
1112                        rtlpci->rxringcount);
1113
1114                 rtlpci->rx_ring[rx_queue_idx].idx = 0;
1115
1116                 for (i = 0; i < rtlpci->rxringcount; i++) {
1117                         struct sk_buff *skb =
1118                             dev_alloc_skb(rtlpci->rxbuffersize);
1119                         u32 bufferaddress;
1120                         if (!skb)
1121                                 return 0;
1122                         entry = &rtlpci->rx_ring[rx_queue_idx].desc[i];
1123
1124                         /*skb->dev = dev; */
1125
1126                         rtlpci->rx_ring[rx_queue_idx].rx_buf[i] = skb;
1127
1128                         /*
1129                          *just set skb->cb to mapping addr
1130                          *for pci_unmap_single use
1131                          */
1132                         *((dma_addr_t *) skb->cb) =
1133                             pci_map_single(rtlpci->pdev, skb_tail_pointer(skb),
1134                                            rtlpci->rxbuffersize,
1135                                            PCI_DMA_FROMDEVICE);
1136
1137                         bufferaddress = (*((dma_addr_t *)skb->cb));
1138                         rtlpriv->cfg->ops->set_desc((u8 *)entry, false,
1139                                                     HW_DESC_RXBUFF_ADDR,
1140                                                     (u8 *)&bufferaddress);
1141                         rtlpriv->cfg->ops->set_desc((u8 *)entry, false,
1142                                                     HW_DESC_RXPKT_LEN,
1143                                                     (u8 *)&rtlpci->
1144                                                     rxbuffersize);
1145                         rtlpriv->cfg->ops->set_desc((u8 *) entry, false,
1146                                                     HW_DESC_RXOWN,
1147                                                     (u8 *)&tmp_one);
1148                 }
1149
1150                 rtlpriv->cfg->ops->set_desc((u8 *) entry, false,
1151                                             HW_DESC_RXERO, (u8 *)&tmp_one);
1152         }
1153         return 0;
1154 }
1155
1156 static void _rtl_pci_free_tx_ring(struct ieee80211_hw *hw,
1157                 unsigned int prio)
1158 {
1159         struct rtl_priv *rtlpriv = rtl_priv(hw);
1160         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1161         struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[prio];
1162
1163         while (skb_queue_len(&ring->queue)) {
1164                 struct rtl_tx_desc *entry = &ring->desc[ring->idx];
1165                 struct sk_buff *skb = __skb_dequeue(&ring->queue);
1166
1167                 pci_unmap_single(rtlpci->pdev,
1168                                  rtlpriv->cfg->
1169                                              ops->get_desc((u8 *) entry, true,
1170                                                    HW_DESC_TXBUFF_ADDR),
1171                                  skb->len, PCI_DMA_TODEVICE);
1172                 kfree_skb(skb);
1173                 ring->idx = (ring->idx + 1) % ring->entries;
1174         }
1175
1176         pci_free_consistent(rtlpci->pdev,
1177                             sizeof(*ring->desc) * ring->entries,
1178                             ring->desc, ring->dma);
1179         ring->desc = NULL;
1180 }
1181
1182 static void _rtl_pci_free_rx_ring(struct rtl_pci *rtlpci)
1183 {
1184         int i, rx_queue_idx;
1185
1186         /*rx_queue_idx 0:RX_MPDU_QUEUE */
1187         /*rx_queue_idx 1:RX_CMD_QUEUE */
1188         for (rx_queue_idx = 0; rx_queue_idx < RTL_PCI_MAX_RX_QUEUE;
1189              rx_queue_idx++) {
1190                 for (i = 0; i < rtlpci->rxringcount; i++) {
1191                         struct sk_buff *skb =
1192                             rtlpci->rx_ring[rx_queue_idx].rx_buf[i];
1193                         if (!skb)
1194                                 continue;
1195
1196                         pci_unmap_single(rtlpci->pdev,
1197                                          *((dma_addr_t *) skb->cb),
1198                                          rtlpci->rxbuffersize,
1199                                          PCI_DMA_FROMDEVICE);
1200                         kfree_skb(skb);
1201                 }
1202
1203                 pci_free_consistent(rtlpci->pdev,
1204                                     sizeof(*rtlpci->rx_ring[rx_queue_idx].
1205                                            desc) * rtlpci->rxringcount,
1206                                     rtlpci->rx_ring[rx_queue_idx].desc,
1207                                     rtlpci->rx_ring[rx_queue_idx].dma);
1208                 rtlpci->rx_ring[rx_queue_idx].desc = NULL;
1209         }
1210 }
1211
1212 static int _rtl_pci_init_trx_ring(struct ieee80211_hw *hw)
1213 {
1214         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1215         int ret;
1216         int i;
1217
1218         ret = _rtl_pci_init_rx_ring(hw);
1219         if (ret)
1220                 return ret;
1221
1222         for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++) {
1223                 ret = _rtl_pci_init_tx_ring(hw, i,
1224                                  rtlpci->txringcount[i]);
1225                 if (ret)
1226                         goto err_free_rings;
1227         }
1228
1229         return 0;
1230
1231 err_free_rings:
1232         _rtl_pci_free_rx_ring(rtlpci);
1233
1234         for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++)
1235                 if (rtlpci->tx_ring[i].desc)
1236                         _rtl_pci_free_tx_ring(hw, i);
1237
1238         return 1;
1239 }
1240
1241 static int _rtl_pci_deinit_trx_ring(struct ieee80211_hw *hw)
1242 {
1243         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1244         u32 i;
1245
1246         /*free rx rings */
1247         _rtl_pci_free_rx_ring(rtlpci);
1248
1249         /*free tx rings */
1250         for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++)
1251                 _rtl_pci_free_tx_ring(hw, i);
1252
1253         return 0;
1254 }
1255
1256 int rtl_pci_reset_trx_ring(struct ieee80211_hw *hw)
1257 {
1258         struct rtl_priv *rtlpriv = rtl_priv(hw);
1259         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1260         int i, rx_queue_idx;
1261         unsigned long flags;
1262         u8 tmp_one = 1;
1263
1264         /*rx_queue_idx 0:RX_MPDU_QUEUE */
1265         /*rx_queue_idx 1:RX_CMD_QUEUE */
1266         for (rx_queue_idx = 0; rx_queue_idx < RTL_PCI_MAX_RX_QUEUE;
1267              rx_queue_idx++) {
1268                 /*
1269                  *force the rx_ring[RX_MPDU_QUEUE/
1270                  *RX_CMD_QUEUE].idx to the first one
1271                  */
1272                 if (rtlpci->rx_ring[rx_queue_idx].desc) {
1273                         struct rtl_rx_desc *entry = NULL;
1274
1275                         for (i = 0; i < rtlpci->rxringcount; i++) {
1276                                 entry = &rtlpci->rx_ring[rx_queue_idx].desc[i];
1277                                 rtlpriv->cfg->ops->set_desc((u8 *) entry,
1278                                                             false,
1279                                                             HW_DESC_RXOWN,
1280                                                             (u8 *)&tmp_one);
1281                         }
1282                         rtlpci->rx_ring[rx_queue_idx].idx = 0;
1283                 }
1284         }
1285
1286         /*
1287          *after reset, release previous pending packet,
1288          *and force the  tx idx to the first one
1289          */
1290         spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags);
1291         for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++) {
1292                 if (rtlpci->tx_ring[i].desc) {
1293                         struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[i];
1294
1295                         while (skb_queue_len(&ring->queue)) {
1296                                 struct rtl_tx_desc *entry =
1297                                     &ring->desc[ring->idx];
1298                                 struct sk_buff *skb =
1299                                     __skb_dequeue(&ring->queue);
1300
1301                                 pci_unmap_single(rtlpci->pdev,
1302                                                  rtlpriv->cfg->ops->
1303                                                          get_desc((u8 *)
1304                                                          entry,
1305                                                          true,
1306                                                          HW_DESC_TXBUFF_ADDR),
1307                                                  skb->len, PCI_DMA_TODEVICE);
1308                                 kfree_skb(skb);
1309                                 ring->idx = (ring->idx + 1) % ring->entries;
1310                         }
1311                         ring->idx = 0;
1312                 }
1313         }
1314
1315         spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
1316
1317         return 0;
1318 }
1319
1320 static bool rtl_pci_tx_chk_waitq_insert(struct ieee80211_hw *hw,
1321                                         struct sk_buff *skb)
1322 {
1323         struct rtl_priv *rtlpriv = rtl_priv(hw);
1324         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1325         struct ieee80211_sta *sta = info->control.sta;
1326         struct rtl_sta_info *sta_entry = NULL;
1327         u8 tid = rtl_get_tid(skb);
1328
1329         if (!sta)
1330                 return false;
1331         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1332
1333         if (!rtlpriv->rtlhal.earlymode_enable)
1334                 return false;
1335         if (sta_entry->tids[tid].agg.agg_state != RTL_AGG_OPERATIONAL)
1336                 return false;
1337         if (_rtl_mac_to_hwqueue(hw, skb) > VO_QUEUE)
1338                 return false;
1339         if (tid > 7)
1340                 return false;
1341
1342         /* maybe every tid should be checked */
1343         if (!rtlpriv->link_info.higher_busytxtraffic[tid])
1344                 return false;
1345
1346         spin_lock_bh(&rtlpriv->locks.waitq_lock);
1347         skb_queue_tail(&rtlpriv->mac80211.skb_waitq[tid], skb);
1348         spin_unlock_bh(&rtlpriv->locks.waitq_lock);
1349
1350         return true;
1351 }
1352
1353 static int rtl_pci_tx(struct ieee80211_hw *hw, struct sk_buff *skb,
1354                 struct rtl_tcb_desc *ptcb_desc)
1355 {
1356         struct rtl_priv *rtlpriv = rtl_priv(hw);
1357         struct rtl_sta_info *sta_entry = NULL;
1358         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1359         struct ieee80211_sta *sta = info->control.sta;
1360         struct rtl8192_tx_ring *ring;
1361         struct rtl_tx_desc *pdesc;
1362         u8 idx;
1363         u8 hw_queue = _rtl_mac_to_hwqueue(hw, skb);
1364         unsigned long flags;
1365         struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1366         __le16 fc = rtl_get_fc(skb);
1367         u8 *pda_addr = hdr->addr1;
1368         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1369         /*ssn */
1370         u8 tid = 0;
1371         u16 seq_number = 0;
1372         u8 own;
1373         u8 temp_one = 1;
1374
1375         if (ieee80211_is_auth(fc)) {
1376                 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, ("MAC80211_LINKING\n"));
1377                 rtl_ips_nic_on(hw);
1378         }
1379
1380         if (rtlpriv->psc.sw_ps_enabled) {
1381                 if (ieee80211_is_data(fc) && !ieee80211_is_nullfunc(fc) &&
1382                         !ieee80211_has_pm(fc))
1383                         hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1384         }
1385
1386         rtl_action_proc(hw, skb, true);
1387
1388         if (is_multicast_ether_addr(pda_addr))
1389                 rtlpriv->stats.txbytesmulticast += skb->len;
1390         else if (is_broadcast_ether_addr(pda_addr))
1391                 rtlpriv->stats.txbytesbroadcast += skb->len;
1392         else
1393                 rtlpriv->stats.txbytesunicast += skb->len;
1394
1395         spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags);
1396         ring = &rtlpci->tx_ring[hw_queue];
1397         if (hw_queue != BEACON_QUEUE)
1398                 idx = (ring->idx + skb_queue_len(&ring->queue)) %
1399                                 ring->entries;
1400         else
1401                 idx = 0;
1402
1403         pdesc = &ring->desc[idx];
1404         own = (u8) rtlpriv->cfg->ops->get_desc((u8 *) pdesc,
1405                         true, HW_DESC_OWN);
1406
1407         if ((own == 1) && (hw_queue != BEACON_QUEUE)) {
1408                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
1409                          ("No more TX desc@%d, ring->idx = %d,"
1410                           "idx = %d, skb_queue_len = 0x%d\n",
1411                           hw_queue, ring->idx, idx,
1412                           skb_queue_len(&ring->queue)));
1413
1414                 spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
1415                 return skb->len;
1416         }
1417
1418         if (ieee80211_is_data_qos(fc)) {
1419                 tid = rtl_get_tid(skb);
1420                 if (sta) {
1421                         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1422                         seq_number = (le16_to_cpu(hdr->seq_ctrl) &
1423                                       IEEE80211_SCTL_SEQ) >> 4;
1424                         seq_number += 1;
1425
1426                         if (!ieee80211_has_morefrags(hdr->frame_control))
1427                                 sta_entry->tids[tid].seq_number = seq_number;
1428                 }
1429         }
1430
1431         if (ieee80211_is_data(fc))
1432                 rtlpriv->cfg->ops->led_control(hw, LED_CTL_TX);
1433
1434         rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *)pdesc,
1435                         info, skb, hw_queue, ptcb_desc);
1436
1437         __skb_queue_tail(&ring->queue, skb);
1438
1439         rtlpriv->cfg->ops->set_desc((u8 *)pdesc, true,
1440                                     HW_DESC_OWN, (u8 *)&temp_one);
1441
1442
1443         if ((ring->entries - skb_queue_len(&ring->queue)) < 2 &&
1444             hw_queue != BEACON_QUEUE) {
1445
1446                 RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
1447                          ("less desc left, stop skb_queue@%d, "
1448                           "ring->idx = %d,"
1449                           "idx = %d, skb_queue_len = 0x%d\n",
1450                           hw_queue, ring->idx, idx,
1451                           skb_queue_len(&ring->queue)));
1452
1453                 ieee80211_stop_queue(hw, skb_get_queue_mapping(skb));
1454         }
1455
1456         spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
1457
1458         rtlpriv->cfg->ops->tx_polling(hw, hw_queue);
1459
1460         return 0;
1461 }
1462
1463 static void rtl_pci_flush(struct ieee80211_hw *hw, bool drop)
1464 {
1465         struct rtl_priv *rtlpriv = rtl_priv(hw);
1466         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
1467         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1468         u16 i = 0;
1469         int queue_id;
1470         struct rtl8192_tx_ring *ring;
1471
1472         for (queue_id = RTL_PCI_MAX_TX_QUEUE_COUNT - 1; queue_id >= 0;) {
1473                 u32 queue_len;
1474                 ring = &pcipriv->dev.tx_ring[queue_id];
1475                 queue_len = skb_queue_len(&ring->queue);
1476                 if (queue_len == 0 || queue_id == BEACON_QUEUE ||
1477                         queue_id == TXCMD_QUEUE) {
1478                         queue_id--;
1479                         continue;
1480                 } else {
1481                         msleep(20);
1482                         i++;
1483                 }
1484
1485                 /* we just wait 1s for all queues */
1486                 if (rtlpriv->psc.rfpwr_state == ERFOFF ||
1487                         is_hal_stop(rtlhal) || i >= 200)
1488                         return;
1489         }
1490 }
1491
1492 static void rtl_pci_deinit(struct ieee80211_hw *hw)
1493 {
1494         struct rtl_priv *rtlpriv = rtl_priv(hw);
1495         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1496
1497         _rtl_pci_deinit_trx_ring(hw);
1498
1499         synchronize_irq(rtlpci->pdev->irq);
1500         tasklet_kill(&rtlpriv->works.irq_tasklet);
1501
1502         flush_workqueue(rtlpriv->works.rtl_wq);
1503         destroy_workqueue(rtlpriv->works.rtl_wq);
1504
1505 }
1506
1507 static int rtl_pci_init(struct ieee80211_hw *hw, struct pci_dev *pdev)
1508 {
1509         struct rtl_priv *rtlpriv = rtl_priv(hw);
1510         int err;
1511
1512         _rtl_pci_init_struct(hw, pdev);
1513
1514         err = _rtl_pci_init_trx_ring(hw);
1515         if (err) {
1516                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1517                          ("tx ring initialization failed"));
1518                 return err;
1519         }
1520
1521         return 1;
1522 }
1523
1524 static int rtl_pci_start(struct ieee80211_hw *hw)
1525 {
1526         struct rtl_priv *rtlpriv = rtl_priv(hw);
1527         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1528         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1529         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1530
1531         int err;
1532
1533         rtl_pci_reset_trx_ring(hw);
1534
1535         rtlpci->driver_is_goingto_unload = false;
1536         err = rtlpriv->cfg->ops->hw_init(hw);
1537         if (err) {
1538                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1539                          ("Failed to config hardware!\n"));
1540                 return err;
1541         }
1542
1543         rtlpriv->cfg->ops->enable_interrupt(hw);
1544         RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, ("enable_interrupt OK\n"));
1545
1546         rtl_init_rx_config(hw);
1547
1548         /*should after adapter start and interrupt enable. */
1549         set_hal_start(rtlhal);
1550
1551         RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC);
1552
1553         rtlpci->up_first_time = false;
1554
1555         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, ("OK\n"));
1556         return 0;
1557 }
1558
1559 static void rtl_pci_stop(struct ieee80211_hw *hw)
1560 {
1561         struct rtl_priv *rtlpriv = rtl_priv(hw);
1562         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1563         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1564         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1565         unsigned long flags;
1566         u8 RFInProgressTimeOut = 0;
1567
1568         /*
1569          *should before disable interrrupt&adapter
1570          *and will do it immediately.
1571          */
1572         set_hal_stop(rtlhal);
1573
1574         rtlpriv->cfg->ops->disable_interrupt(hw);
1575
1576         spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags);
1577         while (ppsc->rfchange_inprogress) {
1578                 spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flags);
1579                 if (RFInProgressTimeOut > 100) {
1580                         spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags);
1581                         break;
1582                 }
1583                 mdelay(1);
1584                 RFInProgressTimeOut++;
1585                 spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags);
1586         }
1587         ppsc->rfchange_inprogress = true;
1588         spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flags);
1589
1590         rtlpci->driver_is_goingto_unload = true;
1591         rtlpriv->cfg->ops->hw_disable(hw);
1592         rtlpriv->cfg->ops->led_control(hw, LED_CTL_POWER_OFF);
1593
1594         spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags);
1595         ppsc->rfchange_inprogress = false;
1596         spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flags);
1597
1598         rtl_pci_enable_aspm(hw);
1599 }
1600
1601 static bool _rtl_pci_find_adapter(struct pci_dev *pdev,
1602                 struct ieee80211_hw *hw)
1603 {
1604         struct rtl_priv *rtlpriv = rtl_priv(hw);
1605         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
1606         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1607         struct pci_dev *bridge_pdev = pdev->bus->self;
1608         u16 venderid;
1609         u16 deviceid;
1610         u8 revisionid;
1611         u16 irqline;
1612         u8 tmp;
1613
1614         pcipriv->ndis_adapter.pcibridge_vendor = PCI_BRIDGE_VENDOR_UNKNOWN;
1615         venderid = pdev->vendor;
1616         deviceid = pdev->device;
1617         pci_read_config_byte(pdev, 0x8, &revisionid);
1618         pci_read_config_word(pdev, 0x3C, &irqline);
1619
1620         if (deviceid == RTL_PCI_8192_DID ||
1621             deviceid == RTL_PCI_0044_DID ||
1622             deviceid == RTL_PCI_0047_DID ||
1623             deviceid == RTL_PCI_8192SE_DID ||
1624             deviceid == RTL_PCI_8174_DID ||
1625             deviceid == RTL_PCI_8173_DID ||
1626             deviceid == RTL_PCI_8172_DID ||
1627             deviceid == RTL_PCI_8171_DID) {
1628                 switch (revisionid) {
1629                 case RTL_PCI_REVISION_ID_8192PCIE:
1630                         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1631                                  ("8192 PCI-E is found - "
1632                                   "vid/did=%x/%x\n", venderid, deviceid));
1633                         rtlhal->hw_type = HARDWARE_TYPE_RTL8192E;
1634                         break;
1635                 case RTL_PCI_REVISION_ID_8192SE:
1636                         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1637                                  ("8192SE is found - "
1638                                   "vid/did=%x/%x\n", venderid, deviceid));
1639                         rtlhal->hw_type = HARDWARE_TYPE_RTL8192SE;
1640                         break;
1641                 default:
1642                         RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
1643                                  ("Err: Unknown device - "
1644                                   "vid/did=%x/%x\n", venderid, deviceid));
1645                         rtlhal->hw_type = HARDWARE_TYPE_RTL8192SE;
1646                         break;
1647
1648                 }
1649         } else if (deviceid == RTL_PCI_8192CET_DID ||
1650                    deviceid == RTL_PCI_8192CE_DID ||
1651                    deviceid == RTL_PCI_8191CE_DID ||
1652                    deviceid == RTL_PCI_8188CE_DID) {
1653                 rtlhal->hw_type = HARDWARE_TYPE_RTL8192CE;
1654                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1655                          ("8192C PCI-E is found - "
1656                           "vid/did=%x/%x\n", venderid, deviceid));
1657         } else if (deviceid == RTL_PCI_8192DE_DID ||
1658                    deviceid == RTL_PCI_8192DE_DID2) {
1659                 rtlhal->hw_type = HARDWARE_TYPE_RTL8192DE;
1660                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1661                          ("8192D PCI-E is found - "
1662                           "vid/did=%x/%x\n", venderid, deviceid));
1663         } else {
1664                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
1665                          ("Err: Unknown device -"
1666                           " vid/did=%x/%x\n", venderid, deviceid));
1667
1668                 rtlhal->hw_type = RTL_DEFAULT_HARDWARE_TYPE;
1669         }
1670
1671         if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192DE) {
1672                 if (revisionid == 0 || revisionid == 1) {
1673                         if (revisionid == 0) {
1674                                 RT_TRACE(rtlpriv, COMP_INIT,
1675                                          DBG_LOUD, ("Find 92DE MAC0.\n"));
1676                                 rtlhal->interfaceindex = 0;
1677                         } else if (revisionid == 1) {
1678                                 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
1679                                         ("Find 92DE MAC1.\n"));
1680                                 rtlhal->interfaceindex = 1;
1681                         }
1682                 } else {
1683                         RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
1684                                 ("Unknown device - "
1685                                 "VendorID/DeviceID=%x/%x, Revision=%x\n",
1686                                 venderid, deviceid, revisionid));
1687                         rtlhal->interfaceindex = 0;
1688                 }
1689         }
1690         /*find bus info */
1691         pcipriv->ndis_adapter.busnumber = pdev->bus->number;
1692         pcipriv->ndis_adapter.devnumber = PCI_SLOT(pdev->devfn);
1693         pcipriv->ndis_adapter.funcnumber = PCI_FUNC(pdev->devfn);
1694
1695         /*find bridge info */
1696         pcipriv->ndis_adapter.pcibridge_vendorid = bridge_pdev->vendor;
1697         for (tmp = 0; tmp < PCI_BRIDGE_VENDOR_MAX; tmp++) {
1698                 if (bridge_pdev->vendor == pcibridge_vendors[tmp]) {
1699                         pcipriv->ndis_adapter.pcibridge_vendor = tmp;
1700                         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1701                                  ("Pci Bridge Vendor is found index: %d\n",
1702                                   tmp));
1703                         break;
1704                 }
1705         }
1706
1707         if (pcipriv->ndis_adapter.pcibridge_vendor !=
1708                 PCI_BRIDGE_VENDOR_UNKNOWN) {
1709                 pcipriv->ndis_adapter.pcibridge_busnum =
1710                     bridge_pdev->bus->number;
1711                 pcipriv->ndis_adapter.pcibridge_devnum =
1712                     PCI_SLOT(bridge_pdev->devfn);
1713                 pcipriv->ndis_adapter.pcibridge_funcnum =
1714                     PCI_FUNC(bridge_pdev->devfn);
1715                 pcipriv->ndis_adapter.pcicfg_addrport =
1716                     (pcipriv->ndis_adapter.pcibridge_busnum << 16) |
1717                     (pcipriv->ndis_adapter.pcibridge_devnum << 11) |
1718                     (pcipriv->ndis_adapter.pcibridge_funcnum << 8) | (1 << 31);
1719                 pcipriv->ndis_adapter.pcibridge_pciehdr_offset =
1720                     pci_pcie_cap(bridge_pdev);
1721                 pcipriv->ndis_adapter.num4bytes =
1722                     (pcipriv->ndis_adapter.pcibridge_pciehdr_offset + 0x10) / 4;
1723
1724                 rtl_pci_get_linkcontrol_field(hw);
1725
1726                 if (pcipriv->ndis_adapter.pcibridge_vendor ==
1727                     PCI_BRIDGE_VENDOR_AMD) {
1728                         pcipriv->ndis_adapter.amd_l1_patch =
1729                             rtl_pci_get_amd_l1_patch(hw);
1730                 }
1731         }
1732
1733         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1734                  ("pcidev busnumber:devnumber:funcnumber:"
1735                   "vendor:link_ctl %d:%d:%d:%x:%x\n",
1736                   pcipriv->ndis_adapter.busnumber,
1737                   pcipriv->ndis_adapter.devnumber,
1738                   pcipriv->ndis_adapter.funcnumber,
1739                   pdev->vendor, pcipriv->ndis_adapter.linkctrl_reg));
1740
1741         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1742                  ("pci_bridge busnumber:devnumber:funcnumber:vendor:"
1743                   "pcie_cap:link_ctl_reg:amd %d:%d:%d:%x:%x:%x:%x\n",
1744                   pcipriv->ndis_adapter.pcibridge_busnum,
1745                   pcipriv->ndis_adapter.pcibridge_devnum,
1746                   pcipriv->ndis_adapter.pcibridge_funcnum,
1747                   pcibridge_vendors[pcipriv->ndis_adapter.pcibridge_vendor],
1748                   pcipriv->ndis_adapter.pcibridge_pciehdr_offset,
1749                   pcipriv->ndis_adapter.pcibridge_linkctrlreg,
1750                   pcipriv->ndis_adapter.amd_l1_patch));
1751
1752         rtl_pci_parse_configuration(pdev, hw);
1753
1754         return true;
1755 }
1756
1757 int __devinit rtl_pci_probe(struct pci_dev *pdev,
1758                             const struct pci_device_id *id)
1759 {
1760         struct ieee80211_hw *hw = NULL;
1761
1762         struct rtl_priv *rtlpriv = NULL;
1763         struct rtl_pci_priv *pcipriv = NULL;
1764         struct rtl_pci *rtlpci;
1765         unsigned long pmem_start, pmem_len, pmem_flags;
1766         int err;
1767
1768         err = pci_enable_device(pdev);
1769         if (err) {
1770                 RT_ASSERT(false,
1771                           ("%s : Cannot enable new PCI device\n",
1772                            pci_name(pdev)));
1773                 return err;
1774         }
1775
1776         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
1777                 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
1778                         RT_ASSERT(false, ("Unable to obtain 32bit DMA "
1779                                           "for consistent allocations\n"));
1780                         pci_disable_device(pdev);
1781                         return -ENOMEM;
1782                 }
1783         }
1784
1785         pci_set_master(pdev);
1786
1787         hw = ieee80211_alloc_hw(sizeof(struct rtl_pci_priv) +
1788                                 sizeof(struct rtl_priv), &rtl_ops);
1789         if (!hw) {
1790                 RT_ASSERT(false,
1791                           ("%s : ieee80211 alloc failed\n", pci_name(pdev)));
1792                 err = -ENOMEM;
1793                 goto fail1;
1794         }
1795
1796         SET_IEEE80211_DEV(hw, &pdev->dev);
1797         pci_set_drvdata(pdev, hw);
1798
1799         rtlpriv = hw->priv;
1800         pcipriv = (void *)rtlpriv->priv;
1801         pcipriv->dev.pdev = pdev;
1802
1803         /* init cfg & intf_ops */
1804         rtlpriv->rtlhal.interface = INTF_PCI;
1805         rtlpriv->cfg = (struct rtl_hal_cfg *)(id->driver_data);
1806         rtlpriv->intf_ops = &rtl_pci_ops;
1807
1808         /*
1809          *init dbgp flags before all
1810          *other functions, because we will
1811          *use it in other funtions like
1812          *RT_TRACE/RT_PRINT/RTL_PRINT_DATA
1813          *you can not use these macro
1814          *before this
1815          */
1816         rtl_dbgp_flag_init(hw);
1817
1818         /* MEM map */
1819         err = pci_request_regions(pdev, KBUILD_MODNAME);
1820         if (err) {
1821                 RT_ASSERT(false, ("Can't obtain PCI resources\n"));
1822                 return err;
1823         }
1824
1825         pmem_start = pci_resource_start(pdev, rtlpriv->cfg->bar_id);
1826         pmem_len = pci_resource_len(pdev, rtlpriv->cfg->bar_id);
1827         pmem_flags = pci_resource_flags(pdev, rtlpriv->cfg->bar_id);
1828
1829         /*shared mem start */
1830         rtlpriv->io.pci_mem_start =
1831                         (unsigned long)pci_iomap(pdev,
1832                         rtlpriv->cfg->bar_id, pmem_len);
1833         if (rtlpriv->io.pci_mem_start == 0) {
1834                 RT_ASSERT(false, ("Can't map PCI mem\n"));
1835                 goto fail2;
1836         }
1837
1838         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1839                  ("mem mapped space: start: 0x%08lx len:%08lx "
1840                   "flags:%08lx, after map:0x%08lx\n",
1841                   pmem_start, pmem_len, pmem_flags,
1842                   rtlpriv->io.pci_mem_start));
1843
1844         /* Disable Clk Request */
1845         pci_write_config_byte(pdev, 0x81, 0);
1846         /* leave D3 mode */
1847         pci_write_config_byte(pdev, 0x44, 0);
1848         pci_write_config_byte(pdev, 0x04, 0x06);
1849         pci_write_config_byte(pdev, 0x04, 0x07);
1850
1851         /* find adapter */
1852         _rtl_pci_find_adapter(pdev, hw);
1853
1854         /* Init IO handler */
1855         _rtl_pci_io_handler_init(&pdev->dev, hw);
1856
1857         /*like read eeprom and so on */
1858         rtlpriv->cfg->ops->read_eeprom_info(hw);
1859
1860         if (rtlpriv->cfg->ops->init_sw_vars(hw)) {
1861                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1862                          ("Can't init_sw_vars.\n"));
1863                 goto fail3;
1864         }
1865
1866         rtlpriv->cfg->ops->init_sw_leds(hw);
1867
1868         /*aspm */
1869         rtl_pci_init_aspm(hw);
1870
1871         /* Init mac80211 sw */
1872         err = rtl_init_core(hw);
1873         if (err) {
1874                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1875                          ("Can't allocate sw for mac80211.\n"));
1876                 goto fail3;
1877         }
1878
1879         /* Init PCI sw */
1880         err = !rtl_pci_init(hw, pdev);
1881         if (err) {
1882                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1883                          ("Failed to init PCI.\n"));
1884                 goto fail3;
1885         }
1886
1887         err = ieee80211_register_hw(hw);
1888         if (err) {
1889                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1890                          ("Can't register mac80211 hw.\n"));
1891                 goto fail3;
1892         } else {
1893                 rtlpriv->mac80211.mac80211_registered = 1;
1894         }
1895
1896         err = sysfs_create_group(&pdev->dev.kobj, &rtl_attribute_group);
1897         if (err) {
1898                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1899                          ("failed to create sysfs device attributes\n"));
1900                 goto fail3;
1901         }
1902
1903         /*init rfkill */
1904         rtl_init_rfkill(hw);
1905
1906         rtlpci = rtl_pcidev(pcipriv);
1907         err = request_irq(rtlpci->pdev->irq, &_rtl_pci_interrupt,
1908                           IRQF_SHARED, KBUILD_MODNAME, hw);
1909         if (err) {
1910                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1911                          ("%s: failed to register IRQ handler\n",
1912                           wiphy_name(hw->wiphy)));
1913                 goto fail3;
1914         } else {
1915                 rtlpci->irq_alloc = 1;
1916         }
1917
1918         set_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status);
1919         return 0;
1920
1921 fail3:
1922         pci_set_drvdata(pdev, NULL);
1923         rtl_deinit_core(hw);
1924         _rtl_pci_io_handler_release(hw);
1925         ieee80211_free_hw(hw);
1926
1927         if (rtlpriv->io.pci_mem_start != 0)
1928                 pci_iounmap(pdev, (void __iomem *)rtlpriv->io.pci_mem_start);
1929
1930 fail2:
1931         pci_release_regions(pdev);
1932
1933 fail1:
1934
1935         pci_disable_device(pdev);
1936
1937         return -ENODEV;
1938
1939 }
1940 EXPORT_SYMBOL(rtl_pci_probe);
1941
1942 void rtl_pci_disconnect(struct pci_dev *pdev)
1943 {
1944         struct ieee80211_hw *hw = pci_get_drvdata(pdev);
1945         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
1946         struct rtl_priv *rtlpriv = rtl_priv(hw);
1947         struct rtl_pci *rtlpci = rtl_pcidev(pcipriv);
1948         struct rtl_mac *rtlmac = rtl_mac(rtlpriv);
1949
1950         clear_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status);
1951
1952         sysfs_remove_group(&pdev->dev.kobj, &rtl_attribute_group);
1953
1954         /*ieee80211_unregister_hw will call ops_stop */
1955         if (rtlmac->mac80211_registered == 1) {
1956                 ieee80211_unregister_hw(hw);
1957                 rtlmac->mac80211_registered = 0;
1958         } else {
1959                 rtl_deinit_deferred_work(hw);
1960                 rtlpriv->intf_ops->adapter_stop(hw);
1961         }
1962
1963         /*deinit rfkill */
1964         rtl_deinit_rfkill(hw);
1965
1966         rtl_pci_deinit(hw);
1967         rtl_deinit_core(hw);
1968         _rtl_pci_io_handler_release(hw);
1969         rtlpriv->cfg->ops->deinit_sw_vars(hw);
1970
1971         if (rtlpci->irq_alloc) {
1972                 free_irq(rtlpci->pdev->irq, hw);
1973                 rtlpci->irq_alloc = 0;
1974         }
1975
1976         if (rtlpriv->io.pci_mem_start != 0) {
1977                 pci_iounmap(pdev, (void __iomem *)rtlpriv->io.pci_mem_start);
1978                 pci_release_regions(pdev);
1979         }
1980
1981         pci_disable_device(pdev);
1982
1983         rtl_pci_disable_aspm(hw);
1984
1985         pci_set_drvdata(pdev, NULL);
1986
1987         ieee80211_free_hw(hw);
1988 }
1989 EXPORT_SYMBOL(rtl_pci_disconnect);
1990
1991 /***************************************
1992 kernel pci power state define:
1993 PCI_D0         ((pci_power_t __force) 0)
1994 PCI_D1         ((pci_power_t __force) 1)
1995 PCI_D2         ((pci_power_t __force) 2)
1996 PCI_D3hot      ((pci_power_t __force) 3)
1997 PCI_D3cold     ((pci_power_t __force) 4)
1998 PCI_UNKNOWN    ((pci_power_t __force) 5)
1999
2000 This function is called when system
2001 goes into suspend state mac80211 will
2002 call rtl_mac_stop() from the mac80211
2003 suspend function first, So there is
2004 no need to call hw_disable here.
2005 ****************************************/
2006 int rtl_pci_suspend(struct pci_dev *pdev, pm_message_t state)
2007 {
2008         struct ieee80211_hw *hw = pci_get_drvdata(pdev);
2009         struct rtl_priv *rtlpriv = rtl_priv(hw);
2010
2011         rtlpriv->cfg->ops->hw_suspend(hw);
2012         rtl_deinit_rfkill(hw);
2013
2014         pci_save_state(pdev);
2015         pci_disable_device(pdev);
2016         pci_set_power_state(pdev, PCI_D3hot);
2017         return 0;
2018 }
2019 EXPORT_SYMBOL(rtl_pci_suspend);
2020
2021 int rtl_pci_resume(struct pci_dev *pdev)
2022 {
2023         int ret;
2024         struct ieee80211_hw *hw = pci_get_drvdata(pdev);
2025         struct rtl_priv *rtlpriv = rtl_priv(hw);
2026
2027         pci_set_power_state(pdev, PCI_D0);
2028         ret = pci_enable_device(pdev);
2029         if (ret) {
2030                 RT_ASSERT(false, ("ERR: <======\n"));
2031                 return ret;
2032         }
2033
2034         pci_restore_state(pdev);
2035
2036         rtlpriv->cfg->ops->hw_resume(hw);
2037         rtl_init_rfkill(hw);
2038         return 0;
2039 }
2040 EXPORT_SYMBOL(rtl_pci_resume);
2041
2042 struct rtl_intf_ops rtl_pci_ops = {
2043         .read_efuse_byte = read_efuse_byte,
2044         .adapter_start = rtl_pci_start,
2045         .adapter_stop = rtl_pci_stop,
2046         .adapter_tx = rtl_pci_tx,
2047         .flush = rtl_pci_flush,
2048         .reset_trx_ring = rtl_pci_reset_trx_ring,
2049         .waitq_insert = rtl_pci_tx_chk_waitq_insert,
2050
2051         .disable_aspm = rtl_pci_disable_aspm,
2052         .enable_aspm = rtl_pci_enable_aspm,
2053 };