diff options
author | Luis R. Rodriguez <lrodriguez@atheros.com> | 2008-10-27 22:44:22 -0700 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-01-06 13:52:10 -0800 |
commit | 4bd43f507c7e2f225f58235226a8381fd6bbff1a (patch) | |
tree | a603a8ecc7fbb98ad06a1eda170532f301df01b3 /drivers/staging/otus/80211core/freqctrl.c | |
parent | e543c241412f5f68d6948968f1a6c2cbb5fad7ff (diff) | |
download | kernel_samsung_smdk4412-4bd43f507c7e2f225f58235226a8381fd6bbff1a.zip kernel_samsung_smdk4412-4bd43f507c7e2f225f58235226a8381fd6bbff1a.tar.gz kernel_samsung_smdk4412-4bd43f507c7e2f225f58235226a8381fd6bbff1a.tar.bz2 |
Staging: add otus Atheros wireless network driver
Initial dump of the otus USB wireless network driver.
It builds properly, but a lot of work needs to be done cleaning
it up before it can be merged into the wireless driver tree.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/otus/80211core/freqctrl.c')
-rw-r--r-- | drivers/staging/otus/80211core/freqctrl.c | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/drivers/staging/otus/80211core/freqctrl.c b/drivers/staging/otus/80211core/freqctrl.c new file mode 100644 index 0000000..bab0df0 --- /dev/null +++ b/drivers/staging/otus/80211core/freqctrl.c @@ -0,0 +1,259 @@ +/* + * Copyright (c) 2007-2008 Atheros Communications Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "cprecomp.h" + +/* zfAddFreqChangeReq should be called inside the critical section */ +static void zfAddFreqChangeReq(zdev_t* dev, u16_t frequency, u8_t bw40, + u8_t extOffset, zfpFreqChangeCompleteCb cb) +{ + zmw_get_wlan_dev(dev); + +//printk("zfAddFreqChangeReq freqReqQueueTail%d\n", wd->freqCtrl.freqReqQueueTail); + wd->freqCtrl.freqReqQueue[wd->freqCtrl.freqReqQueueTail] = frequency; + wd->freqCtrl.freqReqBw40[wd->freqCtrl.freqReqQueueTail] = bw40; + wd->freqCtrl.freqReqExtOffset[wd->freqCtrl.freqReqQueueTail] = extOffset; + wd->freqCtrl.freqChangeCompCb[wd->freqCtrl.freqReqQueueTail] = cb; + wd->freqCtrl.freqReqQueueTail++; + if ( wd->freqCtrl.freqReqQueueTail >= ZM_MAX_FREQ_REQ_QUEUE ) + { + wd->freqCtrl.freqReqQueueTail = 0; + } +} + +void zfCoreSetFrequencyV2(zdev_t* dev, u16_t frequency, zfpFreqChangeCompleteCb cb) +{ + zfCoreSetFrequencyEx(dev, frequency, 0, 0, cb); +} + +void zfCoreSetFrequencyExV2(zdev_t* dev, u16_t frequency, u8_t bw40, + u8_t extOffset, zfpFreqChangeCompleteCb cb, u8_t forceSetFreq) +{ + u8_t setFreqImmed = 0; + u8_t initRF = 0; + zmw_get_wlan_dev(dev); + zmw_declare_for_critical_section(); + + zm_msg1_scan(ZM_LV_1, "Freq=", frequency); + + zmw_enter_critical_section(dev); + if ((wd->sta.currentFrequency == frequency) + && (wd->sta.currentBw40 == bw40) + && (wd->sta.currentExtOffset == extOffset)) + { + if ( forceSetFreq == 0 && wd->sta.flagFreqChanging == 0 ) + { + goto done; + } + } +#ifdef ZM_FB50 + /*if(frequency!=2437) { + zmw_leave_critical_section(dev); + return; + }*/ +#endif + + zfAddFreqChangeReq(dev, frequency, bw40, extOffset, cb); + +// zm_assert( wd->sta.flagFreqChanging == 0 ); + //wd->sta.flagFreqChanging = 1; + if ( wd->sta.flagFreqChanging == 0 ) + { + if ((wd->sta.currentBw40 != bw40) || (wd->sta.currentExtOffset != extOffset)) + { + initRF = 1; + } + wd->sta.currentFrequency = frequency; + wd->sta.currentBw40 = bw40; + wd->sta.currentExtOffset = extOffset; + setFreqImmed = 1; + } + wd->sta.flagFreqChanging++; + + zmw_leave_critical_section(dev); + + if ( setFreqImmed ) + { + //zfHpSetFrequency(dev, frequency, 0); + if ( forceSetFreq ) + { // Cold reset to reset the frequency after scanning ! + zm_debug_msg0("#6_1 20070917"); + zm_debug_msg0("It is happen!!! No error message"); + zfHpSetFrequencyEx(dev, frequency, bw40, extOffset, 2); + } + else + { + zfHpSetFrequencyEx(dev, frequency, bw40, extOffset, initRF); + } + + if ( zfStaIsConnected(dev) + && (frequency == wd->frequency)) { + wd->sta.connPowerInHalfDbm = zfHpGetTransmitPower(dev); + } + } + return; + +done: + zmw_leave_critical_section(dev); + + if ( cb != NULL ) + { + cb(dev); + } + zfPushVtxq(dev); + return; +} + +void zfCoreSetFrequencyEx(zdev_t* dev, u16_t frequency, u8_t bw40, + u8_t extOffset, zfpFreqChangeCompleteCb cb) +{ + zfCoreSetFrequencyExV2(dev, frequency, bw40, extOffset, cb, 0); +} + +void zfCoreSetFrequency(zdev_t* dev, u16_t frequency) +{ + zfCoreSetFrequencyV2(dev, frequency, NULL); +} + +/* zfRemoveFreqChangeReq SHOULD NOT be called inside the critical section */ +static void zfRemoveFreqChangeReq(zdev_t* dev) +{ + zfpFreqChangeCompleteCb cb = NULL; + u16_t frequency; + u8_t bw40; + u8_t extOffset; + u16_t compFreq = 0; + u8_t compBw40 = 0; + u8_t compExtOffset = 0; + + zmw_get_wlan_dev(dev); + zmw_declare_for_critical_section(); + + zmw_enter_critical_section(dev); + + if (wd->freqCtrl.freqReqQueueHead != wd->freqCtrl.freqReqQueueTail) + { + zm_msg1_scan(ZM_LV_1, "Freq=", + wd->freqCtrl.freqReqQueue[wd->freqCtrl.freqReqQueueHead]); + compFreq = wd->freqCtrl.freqReqQueue[wd->freqCtrl.freqReqQueueHead]; + compBw40 = wd->freqCtrl.freqReqBw40[wd->freqCtrl.freqReqQueueHead]; + compExtOffset = wd->freqCtrl.freqReqExtOffset[wd->freqCtrl.freqReqQueueHead]; + + wd->freqCtrl.freqReqQueue[wd->freqCtrl.freqReqQueueHead] = 0; + cb = wd->freqCtrl.freqChangeCompCb[wd->freqCtrl.freqReqQueueHead]; + wd->freqCtrl.freqReqQueueHead++; + if ( wd->freqCtrl.freqReqQueueHead >= ZM_MAX_FREQ_REQ_QUEUE ) + { + wd->freqCtrl.freqReqQueueHead = 0; + } + } + zmw_leave_critical_section(dev); + + if ( cb != NULL ) + { + cb(dev); + } + + zmw_enter_critical_section(dev); + while (wd->freqCtrl.freqReqQueue[wd->freqCtrl.freqReqQueueHead] != 0) + { + frequency = wd->freqCtrl.freqReqQueue[wd->freqCtrl.freqReqQueueHead]; + bw40 = wd->freqCtrl.freqReqBw40[wd->freqCtrl.freqReqQueueHead]; + extOffset=wd->freqCtrl.freqReqExtOffset[wd->freqCtrl.freqReqQueueHead]; + if ((compFreq == frequency) + && (compBw40 == bw40) + && (compExtOffset == extOffset)) + { + /* Duplicated frequency command */ + zm_msg1_scan(ZM_LV_1, "Duplicated Freq=", frequency); + + cb = wd->freqCtrl.freqChangeCompCb[wd->freqCtrl.freqReqQueueHead]; + wd->freqCtrl.freqReqQueue[wd->freqCtrl.freqReqQueueHead] = 0; + wd->freqCtrl.freqReqQueueHead++; + + if ( wd->freqCtrl.freqReqQueueHead >= ZM_MAX_FREQ_REQ_QUEUE ) + { + wd->freqCtrl.freqReqQueueHead = 0; + } + + if ( wd->sta.flagFreqChanging != 0 ) + { + wd->sta.flagFreqChanging--; + } + + zmw_leave_critical_section(dev); + if ( cb != NULL ) + { + cb(dev); + } + zmw_enter_critical_section(dev); + } + else + { + u8_t initRF = 0; + if ((wd->sta.currentBw40 != bw40) || (wd->sta.currentExtOffset != extOffset)) + { + initRF = 1; + } + wd->sta.currentFrequency = frequency; + wd->sta.currentBw40 = bw40; + wd->sta.currentExtOffset = extOffset; + zmw_leave_critical_section(dev); + + zfHpSetFrequencyEx(dev, frequency, bw40, extOffset, initRF); + if ( zfStaIsConnected(dev) + && (frequency == wd->frequency)) { + wd->sta.connPowerInHalfDbm = zfHpGetTransmitPower(dev); + } + + return; + } + } + zmw_leave_critical_section(dev); + + return; +} + +void zfCoreSetFrequencyComplete(zdev_t* dev) +{ + zmw_get_wlan_dev(dev); + zmw_declare_for_critical_section(); + + zm_msg1_scan(ZM_LV_1, "flagFreqChanging=", wd->sta.flagFreqChanging); + + zmw_enter_critical_section(dev); + //wd->sta.flagFreqChanging = 0; + if ( wd->sta.flagFreqChanging != 0 ) + { + wd->sta.flagFreqChanging--; + } + + zmw_leave_critical_section(dev); + + zfRemoveFreqChangeReq(dev); + + zfPushVtxq(dev); + return; +} + +void zfReSetCurrentFrequency(zdev_t* dev) +{ + zmw_get_wlan_dev(dev); + + zm_debug_msg0("It is happen!!! No error message"); + + zfCoreSetFrequencyExV2(dev, wd->frequency, 0, 0, NULL, 1); +} |