2 *************************************************************************
4 * 5F., No.36, Taiyuan St., Jhubei City,
8 * (c) Copyright 2002-2007, Ralink Technology, Inc.
10 * This program is free software; you can redistribute it and/or modify *
11 * it under the terms of the GNU General Public License as published by *
12 * the Free Software Foundation; either version 2 of the License, or *
13 * (at your option) any later version. *
15 * This program is distributed in the hope that it will be useful, *
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
18 * GNU General Public License for more details. *
20 * You should have received a copy of the GNU General Public License *
21 * along with this program; if not, write to the *
22 * Free Software Foundation, Inc., *
23 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
25 *************************************************************************
35 -------- ---------- ----------------------------------------------
36 Fonchi 03-12-2007 created
39 #include "../rt_config.h"
41 typedef struct _RADAR_DURATION_TABLE
44 ULONG RadarSignalDuration;
46 } RADAR_DURATION_TABLE, *PRADAR_DURATION_TABLE;
49 static UCHAR RdIdleTimeTable[MAX_RD_REGION][4] =
51 {9, 250, 250, 250}, // CE
52 {4, 250, 250, 250}, // FCC
53 {4, 250, 250, 250}, // JAP
54 {15, 250, 250, 250}, // JAP_W53
55 {4, 250, 250, 250} // JAP_W56
59 ========================================================================
62 Bbp Radar detection routine
65 pAd Pointer to our adapter
69 ========================================================================
71 VOID BbpRadarDetectionStart(
76 RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, 114, 0x02);
77 RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, 121, 0x20);
78 RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, 122, 0x00);
79 RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, 123, 0x08/*0x80*/);
80 RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, 124, 0x28);
81 RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, 125, 0xff);
84 // toggle Rx enable bit for radar detection.
85 // it's Andy's recommand.
88 RTMP_IO_READ32(pAd, MAC_SYS_CTRL, &Value);
90 RTMP_IO_WRITE32(pAd, MAC_SYS_CTRL, Value);
92 RTMP_IO_WRITE32(pAd, MAC_SYS_CTRL, Value);
95 RadarPeriod = ((UINT)RdIdleTimeTable[pAd->CommonCfg.RadarDetect.RDDurRegion][0] + (UINT)pAd->CommonCfg.RadarDetect.DfsSessionTime) < 250 ?
96 (RdIdleTimeTable[pAd->CommonCfg.RadarDetect.RDDurRegion][0] + pAd->CommonCfg.RadarDetect.DfsSessionTime) : 250;
98 RTMP_IO_WRITE8(pAd, 0x7020, 0x1d);
99 RTMP_IO_WRITE8(pAd, 0x7021, 0x40);
101 RadarDetectionStart(pAd, 0, RadarPeriod);
106 ========================================================================
109 Bbp Radar detection routine
112 pAd Pointer to our adapter
116 ========================================================================
118 VOID BbpRadarDetectionStop(
119 IN PRTMP_ADAPTER pAd)
121 RTMP_IO_WRITE8(pAd, 0x7020, 0x1d);
122 RTMP_IO_WRITE8(pAd, 0x7021, 0x60);
124 RadarDetectionStop(pAd);
129 ========================================================================
132 Radar detection routine
135 pAd Pointer to our adapter
139 ========================================================================
141 VOID RadarDetectionStart(
142 IN PRTMP_ADAPTER pAd,
143 IN BOOLEAN CTSProtect,
146 UINT8 DfsActiveTime = (pAd->CommonCfg.RadarDetect.DfsSessionTime & 0x1f);
147 UINT8 CtsProtect = (CTSProtect == 1) ? 0x02 : 0x01; // CTS protect.
151 switch(pAd->CommonCfg.RadarDetect.RDDurRegion)
169 // send start-RD with CTS protection command to MCU
170 // highbyte [7] reserve
171 // highbyte [6:5] 0x: stop Carrier/Radar detection
172 // highbyte [10]: Start Carrier/Radar detection without CTS protection, 11: Start Carrier/Radar detection with CTS protection
173 // highbyte [4:0] Radar/carrier detection duration. In 1ms.
175 // lowbyte [7:0] Radar/carrier detection period, in 1ms.
176 AsicSendCommandToMcu(pAd, 0x60, 0xff, CTSPeriod, DfsActiveTime | (CtsProtect << 5));
177 //AsicSendCommandToMcu(pAd, 0x63, 0xff, 10, 0);
183 ========================================================================
186 Radar detection routine
189 pAd Pointer to our adapter
192 TRUE Found radar signal
193 FALSE Not found radar signal
195 ========================================================================
197 VOID RadarDetectionStop(
198 IN PRTMP_ADAPTER pAd)
200 DBGPRINT(RT_DEBUG_TRACE,("RadarDetectionStop.\n"));
201 AsicSendCommandToMcu(pAd, 0x60, 0xff, 0x00, 0x00); // send start-RD with CTS protection command to MCU
207 ========================================================================
210 Radar channel check routine
213 pAd Pointer to our adapter
216 TRUE need to do radar detect
217 FALSE need not to do radar detect
219 ========================================================================
221 BOOLEAN RadarChannelCheck(
222 IN PRTMP_ADAPTER pAd,
227 BOOLEAN result = FALSE;
229 for (i=0; i<pAd->ChannelListNum; i++)
231 if (Ch == pAd->ChannelList[i].Channel)
233 result = pAd->ChannelList[i].DfsReq;
241 UCHAR Channel[15]={52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140};
245 if (Ch == Channel[i])
259 IN PRTMP_ADAPTER pAd)
262 const UCHAR Channel[15]={52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140};
264 if (pAd->CommonCfg.RadarDetect.RDDurRegion != JAP)
266 return pAd->CommonCfg.RadarDetect.RDDurRegion;
271 if (pAd->CommonCfg.Channel == Channel[i])
286 ULONG RTMPBbpReadRadarDuration(
287 IN PRTMP_ADAPTER pAd)
292 BBP_IO_READ8_BY_REG_ID(pAd, BBP_R115, &byteValue);
297 case 1: // radar signal detected by pulse mode.
298 case 2: // radar signal detected by width mode.
299 result = RTMPReadRadarDuration(pAd);
302 case 0: // No radar signal.
312 ULONG RTMPReadRadarDuration(
313 IN PRTMP_ADAPTER pAd)
318 UINT8 duration1 = 0, duration2 = 0, duration3 = 0;
320 BBP_IO_READ8_BY_REG_ID(pAd, BBP_R116, &duration1);
321 BBP_IO_READ8_BY_REG_ID(pAd, BBP_R117, &duration2);
322 BBP_IO_READ8_BY_REG_ID(pAd, BBP_R118, &duration3);
323 result = (duration1 << 16) + (duration2 << 8) + duration3;
324 #endif // DFS_SUPPORT //
330 VOID RTMPCleanRadarDuration(
331 IN PRTMP_ADAPTER pAd)
337 ========================================================================
339 Radar wave detection. The API should be invoke each second.
342 pAd - Adapter pointer
347 ========================================================================
349 VOID ApRadarDetectPeriodic(
350 IN PRTMP_ADAPTER pAd)
354 pAd->CommonCfg.RadarDetect.InServiceMonitorCount++;
356 for (i=0; i<pAd->ChannelListNum; i++)
358 if (pAd->ChannelList[i].RemainingTimeForUse > 0)
360 pAd->ChannelList[i].RemainingTimeForUse --;
361 if ((pAd->Mlme.PeriodicRound%5) == 0)
363 DBGPRINT(RT_DEBUG_TRACE, ("RadarDetectPeriodic - ch=%d, RemainingTimeForUse=%d\n", pAd->ChannelList[i].Channel, pAd->ChannelList[i].RemainingTimeForUse));
369 if ((pAd->CommonCfg.Channel > 14)
370 && (pAd->CommonCfg.bIEEE80211H == 1)
371 && RadarChannelCheck(pAd, pAd->CommonCfg.Channel))
373 RadarDetectPeriodic(pAd);
379 // Periodic Radar detection, switch channel will occur in RTMPHandleTBTTInterrupt()
380 // Before switch channel, driver needs doing channel switch announcement.
381 VOID RadarDetectPeriodic(
382 IN PRTMP_ADAPTER pAd)
384 // need to check channel availability, after switch channel
385 if (pAd->CommonCfg.RadarDetect.RDMode != RD_SILENCE_MODE)
388 // channel availability check time is 60sec, use 65 for assurance
389 if (pAd->CommonCfg.RadarDetect.RDCount++ > pAd->CommonCfg.RadarDetect.ChMovingTime)
391 DBGPRINT(RT_DEBUG_TRACE, ("Not found radar signal, start send beacon and radar detection in service monitor\n\n"));
392 BbpRadarDetectionStop(pAd);
393 AsicEnableBssSync(pAd);
394 pAd->CommonCfg.RadarDetect.RDMode = RD_NORMAL_MODE;
405 ==========================================================================
407 change channel moving time for DFS testing.
410 pAdapter Pointer to our adapter
411 wrq Pointer to the ioctl argument
418 1.) iwpriv ra0 set ChMovTime=[value]
419 ==========================================================================
421 INT Set_ChMovingTime_Proc(
422 IN PRTMP_ADAPTER pAd,
427 Value = simple_strtol(arg, 0, 10);
429 pAd->CommonCfg.RadarDetect.ChMovingTime = Value;
431 DBGPRINT(RT_DEBUG_TRACE, ("%s:: %d\n", __func__,
432 pAd->CommonCfg.RadarDetect.ChMovingTime));
437 INT Set_LongPulseRadarTh_Proc(
438 IN PRTMP_ADAPTER pAd,
443 Value = simple_strtol(arg, 0, 10) > 10 ? 10 : simple_strtol(arg, 0, 10);
445 pAd->CommonCfg.RadarDetect.LongPulseRadarTh = Value;
447 DBGPRINT(RT_DEBUG_TRACE, ("%s:: %d\n", __func__,
448 pAd->CommonCfg.RadarDetect.LongPulseRadarTh));