Commit | Line | Data |
---|---|---|
92b96797 FB |
1 | /* |
2 | * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. | |
3 | * All rights reserved. | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License along | |
16 | * with this program; if not, write to the Free Software Foundation, Inc., | |
17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 | * | |
19 | * | |
20 | * File: power.c | |
21 | * | |
22 | * Purpose: Handles 802.11 power managment functions | |
23 | * | |
24 | * Author: Lyndon Chen | |
25 | * | |
26 | * Date: July 17, 2002 | |
27 | * | |
28 | * Functions: | |
29 | * PSvEnablePowerSaving - Enable Power Saving Mode | |
30 | * PSvDiasblePowerSaving - Disable Power Saving Mode | |
31 | * PSbConsiderPowerDown - Decide if we can Power Down | |
32 | * PSvSendPSPOLL - Send PS-POLL packet | |
33 | * PSbSendNullPacket - Send Null packet | |
34 | * PSbIsNextTBTTWakeUp - Decide if we need to wake up at next Beacon | |
35 | * | |
36 | * Revision History: | |
37 | * | |
38 | */ | |
39 | ||
92b96797 | 40 | #include "ttype.h" |
92b96797 | 41 | #include "mac.h" |
92b96797 | 42 | #include "device.h" |
92b96797 | 43 | #include "wmgr.h" |
92b96797 | 44 | #include "power.h" |
92b96797 | 45 | #include "wcmd.h" |
92b96797 | 46 | #include "rxtx.h" |
92b96797 | 47 | #include "card.h" |
92b96797 | 48 | #include "control.h" |
92b96797 | 49 | #include "rndis.h" |
92b96797 FB |
50 | |
51 | /*--------------------- Static Definitions -------------------------*/ | |
52 | ||
53 | ||
54 | ||
55 | ||
56 | /*--------------------- Static Classes ----------------------------*/ | |
57 | ||
58 | /*--------------------- Static Variables --------------------------*/ | |
59 | static int msglevel =MSG_LEVEL_INFO; | |
60 | /*--------------------- Static Functions --------------------------*/ | |
61 | ||
62 | ||
63 | /*--------------------- Export Variables --------------------------*/ | |
64 | ||
65 | ||
66 | /*--------------------- Export Functions --------------------------*/ | |
67 | ||
68 | /*+ | |
69 | * | |
70 | * Routine Description: | |
71 | * Enable hw power saving functions | |
72 | * | |
73 | * Return Value: | |
74 | * None. | |
75 | * | |
76 | -*/ | |
77 | ||
78 | ||
79 | VOID | |
80 | PSvEnablePowerSaving( | |
81 | IN HANDLE hDeviceContext, | |
82 | IN WORD wListenInterval | |
83 | ) | |
84 | { | |
85 | PSDevice pDevice = (PSDevice)hDeviceContext; | |
86 | PSMgmtObject pMgmt = &(pDevice->sMgmtObj); | |
87 | WORD wAID = pMgmt->wCurrAID | BIT14 | BIT15; | |
88 | ||
89 | // set period of power up before TBTT | |
90 | MACvWriteWord(pDevice, MAC_REG_PWBT, C_PWBT); | |
91 | ||
92 | if (pDevice->eOPMode != OP_MODE_ADHOC) { | |
93 | // set AID | |
94 | MACvWriteWord(pDevice, MAC_REG_AIDATIM, wAID); | |
95 | } else { | |
96 | // set ATIM Window | |
97 | //MACvWriteATIMW(pDevice->PortOffset, pMgmt->wCurrATIMWindow); | |
98 | } | |
99 | ||
100 | //Warren:06-18-2004,the sequence must follow PSEN->AUTOSLEEP->GO2DOZE | |
101 | // enable power saving hw function | |
102 | MACvRegBitsOn(pDevice, MAC_REG_PSCTL, PSCTL_PSEN); | |
103 | // Set AutoSleep | |
104 | MACvRegBitsOn(pDevice, MAC_REG_PSCFG, PSCFG_AUTOSLEEP); | |
105 | ||
106 | //Warren:MUST turn on this once before turn on AUTOSLEEP ,or the AUTOSLEEP doesn't work | |
107 | MACvRegBitsOn(pDevice, MAC_REG_PSCTL, PSCTL_GO2DOZE); | |
108 | ||
109 | ||
110 | if (wListenInterval >= 2) { | |
111 | ||
112 | // clear always listen beacon | |
113 | MACvRegBitsOff(pDevice, MAC_REG_PSCTL, PSCTL_ALBCN); | |
114 | // first time set listen next beacon | |
115 | MACvRegBitsOn(pDevice, MAC_REG_PSCTL, PSCTL_LNBCN); | |
116 | ||
117 | pMgmt->wCountToWakeUp = wListenInterval; | |
118 | ||
119 | } | |
120 | else { | |
121 | ||
122 | // always listen beacon | |
123 | MACvRegBitsOn(pDevice, MAC_REG_PSCTL, PSCTL_ALBCN); | |
124 | pMgmt->wCountToWakeUp = 0; | |
125 | ||
126 | } | |
127 | ||
128 | pDevice->bEnablePSMode = TRUE; | |
129 | ||
130 | if (pDevice->eOPMode == OP_MODE_ADHOC) { | |
131 | // bMgrPrepareBeaconToSend((HANDLE)pDevice, pMgmt); | |
132 | } | |
133 | // We don't send null pkt in ad hoc mode since beacon will handle this. | |
134 | else if (pDevice->eOPMode == OP_MODE_INFRASTRUCTURE) { | |
135 | PSbSendNullPacket(pDevice); | |
136 | } | |
137 | pDevice->bPWBitOn = TRUE; | |
138 | DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "PS:Power Saving Mode Enable... \n"); | |
139 | return; | |
140 | } | |
141 | ||
142 | ||
143 | ||
144 | ||
145 | ||
146 | ||
147 | /*+ | |
148 | * | |
149 | * Routine Description: | |
150 | * Disable hw power saving functions | |
151 | * | |
152 | * Return Value: | |
153 | * None. | |
154 | * | |
155 | -*/ | |
156 | ||
157 | VOID | |
158 | PSvDisablePowerSaving( | |
159 | IN HANDLE hDeviceContext | |
160 | ) | |
161 | { | |
162 | PSDevice pDevice = (PSDevice)hDeviceContext; | |
163 | // PSMgmtObject pMgmt = &(pDevice->sMgmtObj); | |
164 | ||
165 | ||
166 | // disable power saving hw function | |
167 | CONTROLnsRequestOut(pDevice, | |
168 | MESSAGE_TYPE_DISABLE_PS, | |
169 | 0, | |
170 | 0, | |
171 | 0, | |
172 | NULL | |
173 | ); | |
174 | ||
175 | //clear AutoSleep | |
176 | MACvRegBitsOff(pDevice, MAC_REG_PSCFG, PSCFG_AUTOSLEEP); | |
177 | ||
178 | // set always listen beacon | |
179 | MACvRegBitsOn(pDevice, MAC_REG_PSCTL, PSCTL_ALBCN); | |
180 | ||
181 | pDevice->bEnablePSMode = FALSE; | |
182 | ||
183 | if (pDevice->eOPMode == OP_MODE_INFRASTRUCTURE) { | |
184 | PSbSendNullPacket(pDevice); | |
185 | } | |
186 | pDevice->bPWBitOn = FALSE; | |
187 | return; | |
188 | } | |
189 | ||
190 | ||
191 | /*+ | |
192 | * | |
193 | * Routine Description: | |
194 | * Consider to power down when no more packets to tx or rx. | |
195 | * | |
196 | * Return Value: | |
197 | * TRUE, if power down success | |
198 | * FALSE, if fail | |
199 | -*/ | |
200 | ||
201 | ||
202 | BOOL | |
203 | PSbConsiderPowerDown( | |
204 | IN HANDLE hDeviceContext, | |
205 | IN BOOL bCheckRxDMA, | |
206 | IN BOOL bCheckCountToWakeUp | |
207 | ) | |
208 | { | |
209 | PSDevice pDevice = (PSDevice)hDeviceContext; | |
210 | PSMgmtObject pMgmt = &(pDevice->sMgmtObj); | |
211 | BYTE byData; | |
212 | ||
213 | ||
214 | // check if already in Doze mode | |
215 | ControlvReadByte(pDevice, MESSAGE_REQUEST_MACREG, MAC_REG_PSCTL, &byData); | |
216 | if ( (byData & PSCTL_PS) != 0 ) | |
217 | return TRUE;; | |
218 | ||
219 | if (pMgmt->eCurrMode != WMAC_MODE_IBSS_STA) { | |
220 | // check if in TIM wake period | |
221 | if (pMgmt->bInTIMWake) | |
222 | return FALSE; | |
223 | } | |
224 | ||
225 | // check scan state | |
226 | if (pDevice->bCmdRunning) | |
227 | return FALSE; | |
228 | ||
229 | //Tx Burst | |
230 | if ( pDevice->bPSModeTxBurst ) | |
231 | return FALSE; | |
232 | ||
233 | // Froce PSEN on | |
234 | MACvRegBitsOn(pDevice, MAC_REG_PSCTL, PSCTL_PSEN); | |
235 | ||
236 | if (pMgmt->eCurrMode != WMAC_MODE_IBSS_STA) { | |
237 | if (bCheckCountToWakeUp && | |
238 | (pMgmt->wCountToWakeUp == 0 || pMgmt->wCountToWakeUp == 1)) { | |
239 | return FALSE; | |
240 | } | |
241 | } | |
242 | ||
243 | pDevice->bPSRxBeacon = TRUE; | |
244 | // no Tx, no Rx isr, now go to Doze | |
245 | MACvRegBitsOn(pDevice, MAC_REG_PSCTL, PSCTL_GO2DOZE); | |
246 | ||
247 | DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Go to Doze ZZZZZZZZZZZZZZZ\n"); | |
248 | return TRUE; | |
249 | } | |
250 | ||
251 | ||
252 | ||
253 | /*+ | |
254 | * | |
255 | * Routine Description: | |
256 | * Send PS-POLL packet | |
257 | * | |
258 | * Return Value: | |
259 | * None. | |
260 | * | |
261 | -*/ | |
262 | ||
263 | ||
264 | ||
265 | VOID | |
266 | PSvSendPSPOLL( | |
267 | IN HANDLE hDeviceContext | |
268 | ) | |
269 | { | |
270 | PSDevice pDevice = (PSDevice)hDeviceContext; | |
271 | PSMgmtObject pMgmt = &(pDevice->sMgmtObj); | |
272 | PSTxMgmtPacket pTxPacket = NULL; | |
273 | ||
274 | ||
275 | memset(pMgmt->pbyPSPacketPool, 0, sizeof(STxMgmtPacket) + WLAN_HDR_ADDR2_LEN); | |
276 | pTxPacket = (PSTxMgmtPacket)pMgmt->pbyPSPacketPool; | |
277 | pTxPacket->p80211Header = (PUWLAN_80211HDR)((PBYTE)pTxPacket + sizeof(STxMgmtPacket)); | |
278 | pTxPacket->p80211Header->sA2.wFrameCtl = cpu_to_le16( | |
279 | ( | |
280 | WLAN_SET_FC_FTYPE(WLAN_TYPE_CTL) | | |
281 | WLAN_SET_FC_FSTYPE(WLAN_FSTYPE_PSPOLL) | | |
282 | WLAN_SET_FC_PWRMGT(0) | |
283 | )); | |
284 | pTxPacket->p80211Header->sA2.wDurationID = pMgmt->wCurrAID | BIT14 | BIT15; | |
285 | memcpy(pTxPacket->p80211Header->sA2.abyAddr1, pMgmt->abyCurrBSSID, WLAN_ADDR_LEN); | |
286 | memcpy(pTxPacket->p80211Header->sA2.abyAddr2, pMgmt->abyMACAddr, WLAN_ADDR_LEN); | |
287 | pTxPacket->cbMPDULen = WLAN_HDR_ADDR2_LEN; | |
288 | pTxPacket->cbPayloadLen = 0; | |
289 | // send the frame | |
290 | if (csMgmt_xmit(pDevice, pTxPacket) != CMD_STATUS_PENDING) { | |
291 | DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Send PS-Poll packet failed..\n"); | |
292 | } | |
293 | else { | |
294 | // DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Send PS-Poll packet success..\n"); | |
295 | }; | |
296 | ||
297 | return; | |
298 | } | |
299 | ||
300 | ||
301 | ||
302 | /*+ | |
303 | * | |
304 | * Routine Description: | |
305 | * Send NULL packet to AP for notification power state of STA | |
306 | * | |
307 | * Return Value: | |
308 | * None. | |
309 | * | |
310 | -*/ | |
311 | BOOL | |
312 | PSbSendNullPacket( | |
313 | IN HANDLE hDeviceContext | |
314 | ) | |
315 | { | |
316 | PSDevice pDevice = (PSDevice)hDeviceContext; | |
317 | PSTxMgmtPacket pTxPacket = NULL; | |
318 | PSMgmtObject pMgmt = &(pDevice->sMgmtObj); | |
319 | ||
320 | ||
321 | ||
322 | if (pDevice->bLinkPass == FALSE) { | |
323 | return FALSE; | |
324 | } | |
325 | ||
326 | //2007-0115-03<Add>by MikeLiu | |
327 | #ifdef TxInSleep | |
328 | if ((pDevice->bEnablePSMode == FALSE) && | |
329 | (pDevice->fTxDataInSleep == FALSE)){ | |
330 | return FALSE; | |
331 | } | |
332 | #else | |
333 | if (pDevice->bEnablePSMode == FALSE) { | |
334 | return FALSE; | |
335 | } | |
336 | #endif | |
337 | memset(pMgmt->pbyPSPacketPool, 0, sizeof(STxMgmtPacket) + WLAN_NULLDATA_FR_MAXLEN); | |
338 | pTxPacket = (PSTxMgmtPacket)pMgmt->pbyPSPacketPool; | |
339 | pTxPacket->p80211Header = (PUWLAN_80211HDR)((PBYTE)pTxPacket + sizeof(STxMgmtPacket)); | |
340 | ||
341 | if (pDevice->bEnablePSMode) { | |
342 | ||
343 | pTxPacket->p80211Header->sA3.wFrameCtl = cpu_to_le16( | |
344 | ( | |
345 | WLAN_SET_FC_FTYPE(WLAN_TYPE_DATA) | | |
346 | WLAN_SET_FC_FSTYPE(WLAN_FSTYPE_NULL) | | |
347 | WLAN_SET_FC_PWRMGT(1) | |
348 | )); | |
349 | } | |
350 | else { | |
351 | pTxPacket->p80211Header->sA3.wFrameCtl = cpu_to_le16( | |
352 | ( | |
353 | WLAN_SET_FC_FTYPE(WLAN_TYPE_DATA) | | |
354 | WLAN_SET_FC_FSTYPE(WLAN_FSTYPE_NULL) | | |
355 | WLAN_SET_FC_PWRMGT(0) | |
356 | )); | |
357 | } | |
358 | ||
359 | if(pMgmt->eCurrMode != WMAC_MODE_IBSS_STA) { | |
360 | pTxPacket->p80211Header->sA3.wFrameCtl |= cpu_to_le16((WORD)WLAN_SET_FC_TODS(1)); | |
361 | } | |
362 | ||
363 | memcpy(pTxPacket->p80211Header->sA3.abyAddr1, pMgmt->abyCurrBSSID, WLAN_ADDR_LEN); | |
364 | memcpy(pTxPacket->p80211Header->sA3.abyAddr2, pMgmt->abyMACAddr, WLAN_ADDR_LEN); | |
365 | memcpy(pTxPacket->p80211Header->sA3.abyAddr3, pMgmt->abyCurrBSSID, WLAN_BSSID_LEN); | |
366 | pTxPacket->cbMPDULen = WLAN_HDR_ADDR3_LEN; | |
367 | pTxPacket->cbPayloadLen = 0; | |
368 | // send the frame | |
369 | if (csMgmt_xmit(pDevice, pTxPacket) != CMD_STATUS_PENDING) { | |
370 | DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Send Null Packet failed !\n"); | |
371 | return FALSE; | |
372 | } | |
373 | else { | |
374 | // DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Send Null Packet success....\n"); | |
375 | } | |
376 | ||
377 | ||
378 | return TRUE ; | |
379 | } | |
380 | ||
381 | /*+ | |
382 | * | |
383 | * Routine Description: | |
384 | * Check if Next TBTT must wake up | |
385 | * | |
386 | * Return Value: | |
387 | * None. | |
388 | * | |
389 | -*/ | |
390 | ||
391 | BOOL | |
392 | PSbIsNextTBTTWakeUp( | |
393 | IN HANDLE hDeviceContext | |
394 | ) | |
395 | { | |
396 | ||
397 | PSDevice pDevice = (PSDevice)hDeviceContext; | |
398 | PSMgmtObject pMgmt = &(pDevice->sMgmtObj); | |
399 | BOOL bWakeUp = FALSE; | |
400 | ||
401 | if (pMgmt->wListenInterval >= 2) { | |
402 | if (pMgmt->wCountToWakeUp == 0) { | |
403 | pMgmt->wCountToWakeUp = pMgmt->wListenInterval; | |
404 | } | |
405 | ||
406 | pMgmt->wCountToWakeUp --; | |
407 | ||
408 | if (pMgmt->wCountToWakeUp == 1) { | |
409 | ||
410 | // Turn on wake up to listen next beacon | |
411 | MACvRegBitsOn(pDevice, MAC_REG_PSCTL, PSCTL_LNBCN); | |
412 | pDevice->bPSRxBeacon = FALSE; | |
413 | bWakeUp = TRUE; | |
414 | ||
415 | } else if ( !pDevice->bPSRxBeacon ) { | |
416 | //Listen until RxBeacon | |
417 | MACvRegBitsOn(pDevice, MAC_REG_PSCTL, PSCTL_LNBCN); | |
418 | } | |
419 | ||
420 | } | |
421 | ||
422 | return bWakeUp; | |
423 | } | |
424 |