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 *
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18 * GNU General Public License for more details. *
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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);
83 RadarPeriod = ((UINT)RdIdleTimeTable[pAd->CommonCfg.RadarDetect.RDDurRegion][0] + (UINT)pAd->CommonCfg.RadarDetect.DfsSessionTime) < 250 ?
84 (RdIdleTimeTable[pAd->CommonCfg.RadarDetect.RDDurRegion][0] + pAd->CommonCfg.RadarDetect.DfsSessionTime) : 250;
86 RTMP_IO_WRITE8(pAd, 0x7020, 0x1d);
87 RTMP_IO_WRITE8(pAd, 0x7021, 0x40);
89 RadarDetectionStart(pAd, 0, RadarPeriod);
94 ========================================================================
97 Bbp Radar detection routine
100 pAd Pointer to our adapter
104 ========================================================================
106 VOID BbpRadarDetectionStop(
107 IN PRTMP_ADAPTER pAd)
109 RTMP_IO_WRITE8(pAd, 0x7020, 0x1d);
110 RTMP_IO_WRITE8(pAd, 0x7021, 0x60);
112 RadarDetectionStop(pAd);
117 ========================================================================
120 Radar detection routine
123 pAd Pointer to our adapter
127 ========================================================================
129 VOID RadarDetectionStart(
130 IN PRTMP_ADAPTER pAd,
131 IN BOOLEAN CTSProtect,
134 UINT8 DfsActiveTime = (pAd->CommonCfg.RadarDetect.DfsSessionTime & 0x1f);
135 UINT8 CtsProtect = (CTSProtect == 1) ? 0x02 : 0x01; // CTS protect.
139 switch(pAd->CommonCfg.RadarDetect.RDDurRegion)
157 // send start-RD with CTS protection command to MCU
158 // highbyte [7] reserve
159 // highbyte [6:5] 0x: stop Carrier/Radar detection
160 // highbyte [10]: Start Carrier/Radar detection without CTS protection, 11: Start Carrier/Radar detection with CTS protection
161 // highbyte [4:0] Radar/carrier detection duration. In 1ms.
163 // lowbyte [7:0] Radar/carrier detection period, in 1ms.
164 AsicSendCommandToMcu(pAd, 0x60, 0xff, CTSPeriod, DfsActiveTime | (CtsProtect << 5));
165 //AsicSendCommandToMcu(pAd, 0x63, 0xff, 10, 0);
171 ========================================================================
174 Radar detection routine
177 pAd Pointer to our adapter
180 TRUE Found radar signal
181 FALSE Not found radar signal
183 ========================================================================
185 VOID RadarDetectionStop(
186 IN PRTMP_ADAPTER pAd)
188 DBGPRINT(RT_DEBUG_TRACE,("RadarDetectionStop.\n"));
189 AsicSendCommandToMcu(pAd, 0x60, 0xff, 0x00, 0x00); // send start-RD with CTS protection command to MCU
195 ========================================================================
198 Radar channel check routine
201 pAd Pointer to our adapter
204 TRUE need to do radar detect
205 FALSE need not to do radar detect
207 ========================================================================
209 BOOLEAN RadarChannelCheck(
210 IN PRTMP_ADAPTER pAd,
215 BOOLEAN result = FALSE;
217 for (i=0; i<pAd->ChannelListNum; i++)
219 if (Ch == pAd->ChannelList[i].Channel)
221 result = pAd->ChannelList[i].DfsReq;
229 UCHAR Channel[15]={52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140};
233 if (Ch == Channel[i])
247 IN PRTMP_ADAPTER pAd)
250 const UCHAR Channel[15]={52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140};
252 if (pAd->CommonCfg.RadarDetect.RDDurRegion != JAP)
254 return pAd->CommonCfg.RadarDetect.RDDurRegion;
259 if (pAd->CommonCfg.Channel == Channel[i])
274 ULONG RTMPBbpReadRadarDuration(
275 IN PRTMP_ADAPTER pAd)
280 BBP_IO_READ8_BY_REG_ID(pAd, BBP_R115, &byteValue);
285 case 1: // radar signal detected by pulse mode.
286 case 2: // radar signal detected by width mode.
287 result = RTMPReadRadarDuration(pAd);
290 case 0: // No radar signal.
300 ULONG RTMPReadRadarDuration(
301 IN PRTMP_ADAPTER pAd)
306 UINT8 duration1 = 0, duration2 = 0, duration3 = 0;
308 BBP_IO_READ8_BY_REG_ID(pAd, BBP_R116, &duration1);
309 BBP_IO_READ8_BY_REG_ID(pAd, BBP_R117, &duration2);
310 BBP_IO_READ8_BY_REG_ID(pAd, BBP_R118, &duration3);
311 result = (duration1 << 16) + (duration2 << 8) + duration3;
312 #endif // DFS_SUPPORT //
318 VOID RTMPCleanRadarDuration(
319 IN PRTMP_ADAPTER pAd)
325 ========================================================================
327 Radar wave detection. The API should be invoke each second.
330 pAd - Adapter pointer
335 ========================================================================
337 VOID ApRadarDetectPeriodic(
338 IN PRTMP_ADAPTER pAd)
342 pAd->CommonCfg.RadarDetect.InServiceMonitorCount++;
344 for (i=0; i<pAd->ChannelListNum; i++)
346 if (pAd->ChannelList[i].RemainingTimeForUse > 0)
348 pAd->ChannelList[i].RemainingTimeForUse --;
349 if ((pAd->Mlme.PeriodicRound%5) == 0)
351 DBGPRINT(RT_DEBUG_TRACE, ("RadarDetectPeriodic - ch=%d, RemainingTimeForUse=%d\n", pAd->ChannelList[i].Channel, pAd->ChannelList[i].RemainingTimeForUse));
357 if ((pAd->CommonCfg.Channel > 14)
358 && (pAd->CommonCfg.bIEEE80211H == 1)
359 && RadarChannelCheck(pAd, pAd->CommonCfg.Channel))
361 RadarDetectPeriodic(pAd);
367 // Periodic Radar detection, switch channel will occur in RTMPHandleTBTTInterrupt()
368 // Before switch channel, driver needs doing channel switch announcement.
369 VOID RadarDetectPeriodic(
370 IN PRTMP_ADAPTER pAd)
372 // need to check channel availability, after switch channel
373 if (pAd->CommonCfg.RadarDetect.RDMode != RD_SILENCE_MODE)
376 // channel availability check time is 60sec, use 65 for assurance
377 if (pAd->CommonCfg.RadarDetect.RDCount++ > pAd->CommonCfg.RadarDetect.ChMovingTime)
379 DBGPRINT(RT_DEBUG_TRACE, ("Not found radar signal, start send beacon and radar detection in service monitor\n\n"));
380 BbpRadarDetectionStop(pAd);
381 AsicEnableBssSync(pAd);
382 pAd->CommonCfg.RadarDetect.RDMode = RD_NORMAL_MODE;
393 ==========================================================================
395 change channel moving time for DFS testing.
398 pAdapter Pointer to our adapter
399 wrq Pointer to the ioctl argument
406 1.) iwpriv ra0 set ChMovTime=[value]
407 ==========================================================================
409 INT Set_ChMovingTime_Proc(
410 IN PRTMP_ADAPTER pAd,
415 Value = simple_strtol(arg, 0, 10);
417 pAd->CommonCfg.RadarDetect.ChMovingTime = Value;
419 DBGPRINT(RT_DEBUG_TRACE, ("%s:: %d\n", __FUNCTION__,
420 pAd->CommonCfg.RadarDetect.ChMovingTime));
425 INT Set_LongPulseRadarTh_Proc(
426 IN PRTMP_ADAPTER pAd,
431 Value = simple_strtol(arg, 0, 10) > 10 ? 10 : simple_strtol(arg, 0, 10);
433 pAd->CommonCfg.RadarDetect.LongPulseRadarTh = Value;
435 DBGPRINT(RT_DEBUG_TRACE, ("%s:: %d\n", __FUNCTION__,
436 pAd->CommonCfg.RadarDetect.LongPulseRadarTh));