diff options
41 files changed, 866 insertions, 301 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index 88ec0447a4f3..44620aebb369 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1087,7 +1087,6 @@ F: drivers/net/wireless/ath/ath5k/ ATHEROS ATH9K WIRELESS DRIVER M: "Luis R. Rodriguez" <lrodriguez@atheros.com> M: Jouni Malinen <jmalinen@atheros.com> -M: Sujith Manoharan <Sujith.Manoharan@atheros.com> M: Vasanthakumar Thiagarajan <vasanth@atheros.com> M: Senthil Balasubramanian <senthilkumar@atheros.com> L: linux-wireless@vger.kernel.org diff --git a/drivers/net/wireless/ath/ath9k/ar9002_calib.c b/drivers/net/wireless/ath/ath9k/ar9002_calib.c index dabafb874c36..fe7418aefc4a 100644 --- a/drivers/net/wireless/ath/ath9k/ar9002_calib.c +++ b/drivers/net/wireless/ath/ath9k/ar9002_calib.c @@ -63,6 +63,7 @@ static bool ar9002_hw_per_calibration(struct ath_hw *ah, u8 rxchainmask, struct ath9k_cal_list *currCal) { + struct ath9k_hw_cal_data *caldata = ah->caldata; bool iscaldone = false; if (currCal->calState == CAL_RUNNING) { @@ -81,14 +82,14 @@ static bool ar9002_hw_per_calibration(struct ath_hw *ah, } currCal->calData->calPostProc(ah, numChains); - ichan->CalValid |= currCal->calData->calType; + caldata->CalValid |= currCal->calData->calType; currCal->calState = CAL_DONE; iscaldone = true; } else { ar9002_hw_setup_calibration(ah, currCal); } } - } else if (!(ichan->CalValid & currCal->calData->calType)) { + } else if (!(caldata->CalValid & currCal->calData->calType)) { ath9k_hw_reset_calibration(ah, currCal); } @@ -686,8 +687,13 @@ static bool ar9002_hw_calibrate(struct ath_hw *ah, { bool iscaldone = true; struct ath9k_cal_list *currCal = ah->cal_list_curr; + bool nfcal, nfcal_pending = false; - if (currCal && + nfcal = !!(REG_READ(ah, AR_PHY_AGC_CONTROL) & AR_PHY_AGC_CONTROL_NF); + if (ah->caldata) + nfcal_pending = ah->caldata->nfcal_pending; + + if (currCal && !nfcal && (currCal->calState == CAL_RUNNING || currCal->calState == CAL_WAITING)) { iscaldone = ar9002_hw_per_calibration(ah, chan, @@ -703,7 +709,7 @@ static bool ar9002_hw_calibrate(struct ath_hw *ah, } /* Do NF cal only at longer intervals */ - if (longcal) { + if (longcal || nfcal_pending) { /* Do periodic PAOffset Cal */ ar9002_hw_pa_cal(ah, false); ar9002_hw_olc_temp_compensation(ah); @@ -712,16 +718,18 @@ static bool ar9002_hw_calibrate(struct ath_hw *ah, * Get the value from the previous NF cal and update * history buffer. */ - ath9k_hw_getnf(ah, chan); - - /* - * Load the NF from history buffer of the current channel. - * NF is slow time-variant, so it is OK to use a historical - * value. - */ - ath9k_hw_loadnf(ah, ah->curchan); + if (ath9k_hw_getnf(ah, chan)) { + /* + * Load the NF from history buffer of the current + * channel. + * NF is slow time-variant, so it is OK to use a + * historical value. + */ + ath9k_hw_loadnf(ah, ah->curchan); + } - ath9k_hw_start_nfcal(ah); + if (longcal) + ath9k_hw_start_nfcal(ah, false); } return iscaldone; @@ -869,8 +877,10 @@ static bool ar9002_hw_init_cal(struct ath_hw *ah, struct ath9k_channel *chan) ar9002_hw_pa_cal(ah, true); /* Do NF Calibration after DC offset and other calibrations */ - REG_WRITE(ah, AR_PHY_AGC_CONTROL, - REG_READ(ah, AR_PHY_AGC_CONTROL) | AR_PHY_AGC_CONTROL_NF); + ath9k_hw_start_nfcal(ah, true); + + if (ah->caldata) + ah->caldata->nfcal_pending = true; ah->cal_list = ah->cal_list_last = ah->cal_list_curr = NULL; @@ -901,7 +911,8 @@ static bool ar9002_hw_init_cal(struct ath_hw *ah, struct ath9k_channel *chan) ath9k_hw_reset_calibration(ah, ah->cal_list_curr); } - chan->CalValid = 0; + if (ah->caldata) + ah->caldata->CalValid = 0; return true; } diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c index 5a0650399136..4674ea8c9c99 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c @@ -68,6 +68,7 @@ static bool ar9003_hw_per_calibration(struct ath_hw *ah, u8 rxchainmask, struct ath9k_cal_list *currCal) { + struct ath9k_hw_cal_data *caldata = ah->caldata; /* Cal is assumed not done until explicitly set below */ bool iscaldone = false; @@ -95,7 +96,7 @@ static bool ar9003_hw_per_calibration(struct ath_hw *ah, currCal->calData->calPostProc(ah, numChains); /* Calibration has finished. */ - ichan->CalValid |= currCal->calData->calType; + caldata->CalValid |= currCal->calData->calType; currCal->calState = CAL_DONE; iscaldone = true; } else { @@ -106,7 +107,7 @@ static bool ar9003_hw_per_calibration(struct ath_hw *ah, ar9003_hw_setup_calibration(ah, currCal); } } - } else if (!(ichan->CalValid & currCal->calData->calType)) { + } else if (!(caldata->CalValid & currCal->calData->calType)) { /* If current cal is marked invalid in channel, kick it off */ ath9k_hw_reset_calibration(ah, currCal); } @@ -149,6 +150,12 @@ static bool ar9003_hw_calibrate(struct ath_hw *ah, /* Do NF cal only at longer intervals */ if (longcal) { /* + * Get the value from the previous NF cal and update + * history buffer. + */ + ath9k_hw_getnf(ah, chan); + + /* * Load the NF from history buffer of the current channel. * NF is slow time-variant, so it is OK to use a historical * value. @@ -156,7 +163,7 @@ static bool ar9003_hw_calibrate(struct ath_hw *ah, ath9k_hw_loadnf(ah, ah->curchan); /* start NF calibration, without updating BB NF register */ - ath9k_hw_start_nfcal(ah); + ath9k_hw_start_nfcal(ah, false); } return iscaldone; @@ -762,6 +769,8 @@ static bool ar9003_hw_init_cal(struct ath_hw *ah, /* Revert chainmasks to their original values before NF cal */ ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask); + ath9k_hw_start_nfcal(ah, true); + /* Initialize list pointers */ ah->cal_list = ah->cal_list_last = ah->cal_list_curr = NULL; @@ -785,7 +794,8 @@ static bool ar9003_hw_init_cal(struct ath_hw *ah, if (ah->cal_list_curr) ath9k_hw_reset_calibration(ah, ah->cal_list_curr); - chan->CalValid = 0; + if (ah->caldata) + ah->caldata->CalValid = 0; return true; } diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c index ace8d2678b18..b883b174385b 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c @@ -41,6 +41,20 @@ #define LE16(x) __constant_cpu_to_le16(x) #define LE32(x) __constant_cpu_to_le32(x) +/* Local defines to distinguish between extension and control CTL's */ +#define EXT_ADDITIVE (0x8000) +#define CTL_11A_EXT (CTL_11A | EXT_ADDITIVE) +#define CTL_11G_EXT (CTL_11G | EXT_ADDITIVE) +#define CTL_11B_EXT (CTL_11B | EXT_ADDITIVE) +#define REDUCE_SCALED_POWER_BY_TWO_CHAIN 6 /* 10*log10(2)*2 */ +#define REDUCE_SCALED_POWER_BY_THREE_CHAIN 9 /* 10*log10(3)*2 */ +#define PWRINCR_3_TO_1_CHAIN 9 /* 10*log(3)*2 */ +#define PWRINCR_3_TO_2_CHAIN 3 /* floor(10*log(3/2)*2) */ +#define PWRINCR_2_TO_1_CHAIN 6 /* 10*log(2)*2 */ + +#define SUB_NUM_CTL_MODES_AT_5G_40 2 /* excluding HT40, EXT-OFDM */ +#define SUB_NUM_CTL_MODES_AT_2G_40 3 /* excluding HT40, EXT-OFDM, EXT-CCK */ + static const struct ar9300_eeprom ar9300_default = { .eepromVersion = 2, .templateVersion = 2, @@ -609,6 +623,14 @@ static const struct ar9300_eeprom ar9300_default = { } }; +static u16 ath9k_hw_fbin2freq(u8 fbin, bool is2GHz) +{ + if (fbin == AR9300_BCHAN_UNUSED) + return fbin; + + return (u16) ((is2GHz) ? (2300 + fbin) : (4800 + 5 * fbin)); +} + static int ath9k_hw_ar9300_check_eeprom(struct ath_hw *ah) { return 0; @@ -1417,9 +1439,9 @@ static int ar9003_hw_tx_power_regwrite(struct ath_hw *ah, u8 * pPwrArray) #undef POW_SM } -static void ar9003_hw_set_target_power_eeprom(struct ath_hw *ah, u16 freq) +static void ar9003_hw_set_target_power_eeprom(struct ath_hw *ah, u16 freq, + u8 *targetPowerValT2) { - u8 targetPowerValT2[ar9300RateSize]; /* XXX: hard code for now, need to get from eeprom struct */ u8 ht40PowerIncForPdadc = 0; bool is2GHz = false; @@ -1553,9 +1575,6 @@ static void ar9003_hw_set_target_power_eeprom(struct ath_hw *ah, u16 freq) "TPC[%02d] 0x%08x\n", i, targetPowerValT2[i]); i++; } - - /* Write target power array to registers */ - ar9003_hw_tx_power_regwrite(ah, targetPowerValT2); } static int ar9003_hw_cal_pier_get(struct ath_hw *ah, @@ -1799,14 +1818,369 @@ static int ar9003_hw_calibration_apply(struct ath_hw *ah, int frequency) return 0; } +static u16 ar9003_hw_get_direct_edge_power(struct ar9300_eeprom *eep, + int idx, + int edge, + bool is2GHz) +{ + struct cal_ctl_data_2g *ctl_2g = eep->ctlPowerData_2G; + struct cal_ctl_data_5g *ctl_5g = eep->ctlPowerData_5G; + + if (is2GHz) + return ctl_2g[idx].ctlEdges[edge].tPower; + else + return ctl_5g[idx].ctlEdges[edge].tPower; +} + +static u16 ar9003_hw_get_indirect_edge_power(struct ar9300_eeprom *eep, + int idx, + unsigned int edge, + u16 freq, + bool is2GHz) +{ + struct cal_ctl_data_2g *ctl_2g = eep->ctlPowerData_2G; + struct cal_ctl_data_5g *ctl_5g = eep->ctlPowerData_5G; + + u8 *ctl_freqbin = is2GHz ? + &eep->ctl_freqbin_2G[idx][0] : + &eep->ctl_freqbin_5G[idx][0]; + + if (is2GHz) { + if (ath9k_hw_fbin2freq(ctl_freqbin[edge - 1], 1) < freq && + ctl_2g[idx].ctlEdges[edge - 1].flag) + return ctl_2g[idx].ctlEdges[edge - 1].tPower; + } else { + if (ath9k_hw_fbin2freq(ctl_freqbin[edge - 1], 0) < freq && + ctl_5g[idx].ctlEdges[edge - 1].flag) + return ctl_5g[idx].ctlEdges[edge - 1].tPower; + } + + return AR9300_MAX_RATE_POWER; +} + +/* + * Find the maximum conformance test limit for the given channel and CTL info + */ +static u16 ar9003_hw_get_max_edge_power(struct ar9300_eeprom *eep, + u16 freq, int idx, bool is2GHz) +{ + u16 twiceMaxEdgePower = AR9300_MAX_RATE_POWER; + u8 *ctl_freqbin = is2GHz ? + &eep->ctl_freqbin_2G[idx][0] : + &eep->ctl_freqbin_5G[idx][0]; + u16 num_edges = is2GHz ? + AR9300_NUM_BAND_EDGES_2G : AR9300_NUM_BAND_EDGES_5G; + unsigned int edge; + + /* Get the edge power */ + for (edge = 0; + (edge < num_edges) && (ctl_freqbin[edge] != AR9300_BCHAN_UNUSED); + edge++) { + /* + * If there's an exact channel match or an inband flag set + * on the lower channel use the given rdEdgePower + */ + if (freq == ath9k_hw_fbin2freq(ctl_freqbin[edge], is2GHz)) { + twiceMaxEdgePower = + ar9003_hw_get_direct_edge_power(eep, idx, + edge, is2GHz); + break; + } else if ((edge > 0) && + (freq < ath9k_hw_fbin2freq(ctl_freqbin[edge], + is2GHz))) { + twiceMaxEdgePower = + ar9003_hw_get_indirect_edge_power(eep, idx, + edge, freq, + is2GHz); + /* + * Leave loop - no more affecting edges possible in + * this monotonic increasing list + */ + break; + } + } + return twiceMaxEdgePower; +} + +static void ar9003_hw_set_power_per_rate_table(struct ath_hw *ah, + struct ath9k_channel *chan, + u8 *pPwrArray, u16 cfgCtl, + u8 twiceAntennaReduction, + u8 twiceMaxRegulatoryPower, + u16 powerLimit) +{ + struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah); + struct ath_common *common = ath9k_hw_common(ah); + struct ar9300_eeprom *pEepData = &ah->eeprom.ar9300_eep; + u16 twiceMaxEdgePower = AR9300_MAX_RATE_POWER; + static const u16 tpScaleReductionTable[5] = { + 0, 3, 6, 9, AR9300_MAX_RATE_POWER + }; + int i; + int16_t twiceLargestAntenna; + u16 scaledPower = 0, minCtlPower, maxRegAllowedPower; + u16 ctlModesFor11a[] = { + CTL_11A, CTL_5GHT20, CTL_11A_EXT, CTL_5GHT40 + }; + u16 ctlModesFor11g[] = { + CTL_11B, CTL_11G, CTL_2GHT20, CTL_11B_EXT, + CTL_11G_EXT, CTL_2GHT40 + }; + u16 numCtlModes, *pCtlMode, ctlMode, freq; + struct chan_centers centers; + u8 *ctlIndex; + u8 ctlNum; + u16 twiceMinEdgePower; + bool is2ghz = IS_CHAN_2GHZ(chan); + + ath9k_hw_get_channel_centers(ah, chan, ¢ers); + + /* Compute TxPower reduction due to Antenna Gain */ + if (is2ghz) + twiceLargestAntenna = pEepData->modalHeader2G.antennaGain; + else + twiceLargestAntenna = pEepData->modalHeader5G.antennaGain; + + twiceLargestAntenna = (int16_t)min((twiceAntennaReduction) - + twiceLargestAntenna, 0); + + /* + * scaledPower is the minimum of the user input power level + * and the regulatory allowed power level + */ + maxRegAllowedPower = twiceMaxRegulatoryPower + twiceLargestAntenna; + + if (regulatory->tp_scale != ATH9K_TP_SCALE_MAX) { + maxRegAllowedPower -= + (tpScaleReductionTable[(regulatory->tp_scale)] * 2); + } + + scaledPower = min(powerLimit, maxRegAllowedPower); + + /* + * Reduce scaled Power by number of chains active to get + * to per chain tx power level + */ + switch (ar5416_get_ntxchains(ah->txchainmask)) { + case 1: + break; + case 2: + scaledPower -= REDUCE_SCALED_POWER_BY_TWO_CHAIN; + break; + case 3: + scaledPower -= REDUCE_SCALED_POWER_BY_THREE_CHAIN; + break; + } + + scaledPower = max((u16)0, scaledPower); + + /* + * Get target powers from EEPROM - our baseline for TX Power + */ + if (is2ghz) { + /* Setup for CTL modes */ + /* CTL_11B, CTL_11G, CTL_2GHT20 */ + numCtlModes = + ARRAY_SIZE(ctlModesFor11g) - + SUB_NUM_CTL_MODES_AT_2G_40; + pCtlMode = ctlModesFor11g; + if (IS_CHAN_HT40(chan)) + /* All 2G CTL's */ + numCtlModes = ARRAY_SIZE(ctlModesFor11g); + } else { + /* Setup for CTL modes */ + /* CTL_11A, CTL_5GHT20 */ + numCtlModes = ARRAY_SIZE(ctlModesFor11a) - + SUB_NUM_CTL_MODES_AT_5G_40; + pCtlMode = ctlModesFor11a; + if (IS_CHAN_HT40(chan)) + /* All 5G CTL's */ + numCtlModes = ARRAY_SIZE(ctlModesFor11a); + } + + /* + * For MIMO, need to apply regulatory caps individually across + * dynamically running modes: CCK, OFDM, HT20, HT40 + * + * The outer loop walks through each possible applicable runtime mode. + * The inner loop walks through each ctlIndex entry in EEPROM. + * The ctl value is encoded as [7:4] == test group, [3:0] == test mode. + */ + for (ctlMode = 0; ctlMode < numCtlModes; ctlMode++) { + bool isHt40CtlMode = (pCtlMode[ctlMode] == CTL_5GHT40) || + (pCtlMode[ctlMode] == CTL_2GHT40); + if (isHt40CtlMode) + freq = centers.synth_center; + else if (pCtlMode[ctlMode] & EXT_ADDITIVE) + freq = centers.ext_center; + else + freq = centers.ctl_center; + + ath_print(common, ATH_DBG_REGULATORY, + "LOOP-Mode ctlMode %d < %d, isHt40CtlMode %d, " + "EXT_ADDITIVE %d\n", + ctlMode, numCtlModes, isHt40CtlMode, + (pCtlMode[ctlMode] & EXT_ADDITIVE)); + + /* walk through each CTL index stored in EEPROM */ + if (is2ghz) { + ctlIndex = pEepData->ctlIndex_2G; + ctlNum = AR9300_NUM_CTLS_2G; + } else { + ctlIndex = pEepData->ctlIndex_5G; + ctlNum = AR9300_NUM_CTLS_5G; + } + + for (i = 0; (i < ctlNum) && ctlIndex[i]; i++) { + ath_print(common, ATH_DBG_REGULATORY, + "LOOP-Ctlidx %d: cfgCtl 0x%2.2x " + "pCtlMode 0x%2.2x ctlIndex 0x%2.2x " + "chan %dn", + i, cfgCtl, pCtlMode[ctlMode], ctlIndex[i], + chan->channel); + + /* + * compare test group from regulatory + * channel list with test mode from pCtlMode + * list + */ + if ((((cfgCtl & ~CTL_MODE_M) | + (pCtlMode[ctlMode] & CTL_MODE_M)) == + ctlIndex[i]) || + (((cfgCtl & ~CTL_MODE_M) | + (pCtlMode[ctlMode] & CTL_MODE_M)) == + ((ctlIndex[i] & CTL_MODE_M) | + SD_NO_CTL))) { + twiceMinEdgePower = + ar9003_hw_get_max_edge_power(pEepData, + freq, i, + is2ghz); + + if ((cfgCtl & ~CTL_MODE_M) == SD_NO_CTL) + /* + * Find the minimum of all CTL + * edge powers that apply to + * this channel + */ + twiceMaxEdgePower = + min(twiceMaxEdgePower, + twiceMinEdgePower); + else { + /* specific */ + twiceMaxEdgePower = + twiceMinEdgePower; + break; + } + } + } + + minCtlPower = (u8)min(twiceMaxEdgePower, scaledPower); + + ath_print(common, ATH_DBG_REGULATORY, + "SEL-Min ctlMode %d pCtlMode %d 2xMaxEdge %d " + "sP %d minCtlPwr %d\n", + ctlMode, pCtlMode[ctlMode], twiceMaxEdgePower, + scaledPower, minCtlPower); + + /* Apply ctl mode to correct target power set */ + switch (pCtlMode[ctlMode]) { + case CTL_11B: + for (i = ALL_TARGET_LEGACY_1L_5L; + i <= ALL_TARGET_LEGACY_11S; i++) + pPwrArray[i] = + (u8)min((u16)pPwrArray[i], + minCtlPower); + break; + case CTL_11A: + case CTL_11G: + for (i = ALL_TARGET_LEGACY_6_24; + i <= ALL_TARGET_LEGACY_54; i++) + pPwrArray[i] = + (u8)min((u16)pPwrArray[i], + minCtlPower); + break; + case CTL_5GHT20: + case CTL_2GHT20: + for (i = ALL_TARGET_HT20_0_8_16; + i <= ALL_TARGET_HT20_21; i++) + pPwrArray[i] = + (u8)min((u16)pPwrArray[i], + minCtlPower); + pPwrArray[ALL_TARGET_HT20_22] = + (u8)min((u16)pPwrArray[ALL_TARGET_HT20_22], + minCtlPower); + pPwrArray[ALL_TARGET_HT20_23] = + (u8)min((u16)pPwrArray[ALL_TARGET_HT20_23], + minCtlPower); + break; + case CTL_5GHT40: + case CTL_2GHT40: + for (i = ALL_TARGET_HT40_0_8_16; + i <= ALL_TARGET_HT40_23; i++) + pPwrArray[i] = + (u8)min((u16)pPwrArray[i], + minCtlPower); + break; + default: + break; + } + } /* end ctl mode checking */ +} + static void ath9k_hw_ar9300_set_txpower(struct ath_hw *ah, struct ath9k_channel *chan, u16 cfgCtl, u8 twiceAntennaReduction, u8 twiceMaxRegulatoryPower, u8 powerLimit) { - ah->txpower_limit = powerLimit; - ar9003_hw_set_target_power_eeprom(ah, chan->channel); + struct ath_common *common = ath9k_hw_common(ah); + u8 targetPowerValT2[ar9300RateSize]; + unsigned int i = 0; + + ar9003_hw_set_target_power_eeprom(ah, chan->channel, targetPowerValT2); + ar9003_hw_set_power_per_rate_table(ah, chan, + targetPowerValT2, cfgCtl, + twiceAntennaReduction, + twiceMaxRegulatoryPower, + powerLimit); + + while (i < ar9300RateSize) { + ath_print(common, ATH_DBG_EEPROM, + "TPC[%02d] 0x%08x ", i, targetPowerValT2[i]); + i++; + ath_print(common, ATH_DBG_EEPROM, + "TPC[%02d] 0x%08x ", i, targetPowerValT2[i]); + i++; + ath_print(common, ATH_DBG_EEPROM, + "TPC[%02d] 0x%08x ", i, targetPowerValT2[i]); + i++; + ath_print(common, ATH_DBG_EEPROM, + "TPC[%02d] 0x%08x\n\n", i, targetPowerValT2[i]); + i++; + } + + /* Write target power array to registers */ + ar9003_hw_tx_power_regwrite(ah, targetPowerValT2); + + /* + * This is the TX power we send back to driver core, + * and it can use to pass to userspace to display our + * currently configured TX power setting. + * + * Since power is rate dependent, use one of the indices + * from the AR9300_Rates enum to select an entry from + * targetPowerValT2[] to report. Currently returns the + * power for HT40 MCS 0, HT20 MCS 0, or OFDM 6 Mbps + * as CCK power is less interesting (?). + */ + i = ALL_TARGET_LEGACY_6_24; /* legacy */ + if (IS_CHAN_HT40(chan)) + i = ALL_TARGET_HT40_0_8_16; /* ht40 */ + else if (IS_CHAN_HT20(chan)) + i = ALL_TARGET_HT20_0_8_16; /* ht20 */ + + ah->txpower_limit = targetPowerValT2[i]; + ar9003_hw_calibration_apply(ah, chan->channel); } diff --git a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c index 49e0c865ce5c..7c38229ba670 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c @@ -577,10 +577,11 @@ static bool create_pa_curve(u32 *data_L, u32 *data_U, u32 *pa_table, u16 *gain) } void ar9003_paprd_populate_single_table(struct ath_hw *ah, - struct ath9k_channel *chan, int chain) + struct ath9k_hw_cal_data *caldata, + int chain) { - u32 *paprd_table_val = chan->pa_table[chain]; - u32 small_signal_gain = chan->small_signal_gain[chain]; + u32 *paprd_table_val = caldata->pa_table[chain]; + u32 small_signal_gain = caldata->small_signal_gain[chain]; u32 training_power; u32 reg = 0; int i; @@ -654,17 +655,17 @@ int ar9003_paprd_setup_gain_table(struct ath_hw *ah, int chain) } EXPORT_SYMBOL(ar9003_paprd_setup_gain_table); -int ar9003_paprd_create_curve(struct ath_hw *ah, struct ath9k_channel *chan, - int chain) +int ar9003_paprd_create_curve(struct ath_hw *ah, + struct ath9k_hw_cal_data *caldata, int chain) { - u16 *small_signal_gain = &chan->small_signal_gain[chain]; - u32 *pa_table = chan->pa_table[chain]; + u16 *small_signal_gain = &caldata->small_signal_gain[chain]; + u32 *pa_table = caldata->pa_table[chain]; u32 *data_L, *data_U; int i, status = 0; u32 *buf; u32 reg; - memset(chan->pa_table[chain], 0, sizeof(chan->pa_table[chain])); + memset(caldata->pa_table[chain], 0, sizeof(caldata->pa_table[chain])); buf = kmalloc(2 * 48 * sizeof(u32), GFP_ATOMIC); if (!buf) diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c index a753a431bb13..a491854fa38a 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c @@ -542,7 +542,11 @@ static void ar9003_hw_prog_ini(struct ath_hw *ah, u32 reg = INI_RA(iniArr, i, 0); u32 val = INI_RA(iniArr, i, column); - REG_WRITE(ah, reg, val); + if (reg >= 0x16000 && reg < 0x17000) + ath9k_hw_analog_shift_regwrite(ah, reg, val); + else + REG_WRITE(ah, reg, val); + DO_DELAY(regWrites); } } diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 998ae2c49ed2..07f26ee7a723 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -510,7 +510,7 @@ void ath_deinit_leds(struct ath_softc *sc); #define SC_OP_BEACONS BIT(1) #define SC_OP_RXAGGR BIT(2) #define SC_OP_TXAGGR BIT(3) -#define SC_OP_FULL_RESET BIT(4) +#define SC_OP_OFFCHANNEL BIT(4) #define SC_OP_PREAMBLE_SHORT BIT(5) #define SC_OP_PROTECT_ENABLE BIT(6) #define SC_OP_RXFLUSH BIT(7) @@ -609,6 +609,7 @@ struct ath_softc { struct ath_wiphy { struct ath_softc *sc; /* shared for all virtual wiphys */ struct ieee80211_hw *hw; + struct ath9k_hw_cal_data caldata; enum ath_wiphy_state { ATH_WIPHY_INACTIVE, ATH_WIPHY_ACTIVE, diff --git a/drivers/net/wireless/ath/ath9k/calib.c b/drivers/net/wireless/ath/ath9k/calib.c index 139289e4e933..45208690c0ec 100644 --- a/drivers/net/wireless/ath/ath9k/calib.c +++ b/drivers/net/wireless/ath/ath9k/calib.c @@ -22,23 +22,6 @@ /* We can tune this as we go by monitoring really low values */ #define ATH9K_NF_TOO_LOW -60 -/* AR5416 may return very high value (like -31 dBm), in those cases the nf - * is incorrect and we should use the static NF value. Later we can try to - * find out why they are reporting these values */ - -static bool ath9k_hw_nf_in_range(struct ath_hw *ah, s16 nf) -{ - if (nf > ATH9K_NF_TOO_LOW) { - ath_print(ath9k_hw_common(ah), ATH_DBG_CALIBRATE, - "noise floor value detected (%d) is " - "lower than what we think is a " - "reasonable value (%d)\n", - nf, ATH9K_NF_TOO_LOW); - return false; - } - return true; -} - static int16_t ath9k_hw_get_nf_hist_mid(int16_t *nfCalBuffer) { int16_t nfval; @@ -121,6 +104,19 @@ void ath9k_hw_reset_calibration(struct ath_hw *ah, ah->cal_samples = 0; } +static s16 ath9k_hw_get_default_nf(struct ath_hw *ah, + struct ath9k_channel *chan) +{ + struct ath_nf_limits *limit; + + if (!chan || IS_CHAN_2GHZ(chan)) + limit = &ah->nf_2g; + else + limit = &ah->nf_5g; + + return limit->nominal; +} + /* This is done for the currently configured channel */ bool ath9k_hw_reset_calvalid(struct ath_hw *ah) { @@ -128,7 +124,7 @@ bool ath9k_hw_reset_calvalid(struct ath_hw *ah) struct ieee80211_conf *conf = &common->hw->conf; struct ath9k_cal_list *currCal = ah->cal_list_curr; - if (!ah->curchan) + if (!ah->caldata) return true; if (!AR_SREV_9100(ah) && !AR_SREV_9160_10_OR_LATER(ah)) @@ -151,37 +147,55 @@ bool ath9k_hw_reset_calvalid(struct ath_hw *ah) "Resetting Cal %d state for channel %u\n", currCal->calData->calType, conf->channel->center_freq); - ah->curchan->CalValid &= ~currCal->calData->calType; + ah->caldata->CalValid &= ~currCal->calData->calType; currCal->calState = CAL_WAITING; return false; } EXPORT_SYMBOL(ath9k_hw_reset_calvalid); -void ath9k_hw_start_nfcal(struct ath_hw *ah) +void ath9k_hw_start_nfcal(struct ath_hw *ah, bool update) { + if (ah->caldata) + ah->caldata->nfcal_pending = true; + REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_ENABLE_NF); - REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, + + if (update) + REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL, + AR_PHY_AGC_CONTROL_NO_UPDATE_NF); + else + REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_NO_UPDATE_NF); + REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_NF); } void ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan) { - struct ath9k_nfcal_hist *h; + struct ath9k_nfcal_hist *h = NULL; unsigned i, j; int32_t val; u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask; struct ath_common *common = ath9k_hw_common(ah); + s16 default_nf = ath9k_hw_get_default_nf(ah, chan); - h = ah->nfCalHist; + if (ah->caldata) + h = ah->caldata->nfCalHist; for (i = 0; i < NUM_NF_READINGS; i++) { if (chainmask & (1 << i)) { + s16 nfval; + + if (h) + nfval = h[i].privNF; + else + nfval = default_nf; + val = REG_READ(ah, ah->nf_regs[i]); val &= 0xFFFFFE00; - val |= (((u32) (h[i].privNF) << 1) & 0x1ff); + val |= (((u32) nfval << 1) & 0x1ff); REG_WRITE(ah, ah->nf_regs[i], val); } } @@ -277,22 +291,25 @@ static void ath9k_hw_nf_sanitize(struct ath_hw *ah, s16 *nf) } } -int16_t ath9k_hw_getnf(struct ath_hw *ah, - struct ath9k_channel *chan) +bool ath9k_hw_getnf(struct ath_hw *ah, struct ath9k_channel *chan) { struct ath_common *common = ath9k_hw_common(ah); int16_t nf, nfThresh; int16_t nfarray[NUM_NF_READINGS] = { 0 }; struct ath9k_nfcal_hist *h; struct ieee80211_channel *c = chan->chan; + struct ath9k_hw_cal_data *caldata = ah->caldata; + + if (!caldata) + return false; chan->channelFlags &= (~CHANNEL_CW_INT); if (REG_READ(ah, AR_PHY_AGC_CONTROL) & AR_PHY_AGC_CONTROL_NF) { ath_print(common, ATH_DBG_CALIBRATE, "NF did not complete in calibration window\n"); nf = 0; - chan->rawNoiseFloor = nf; - return chan->rawNoiseFloor; + caldata->rawNoiseFloor = nf; + return false; } else { ath9k_hw_do_getnf(ah, nfarray); ath9k_hw_nf_sanitize(ah, nfarray); @@ -307,47 +324,40 @@ int16_t ath9k_hw_getnf(struct ath_hw *ah, } } - h = ah->nfCalHist; - + h = caldata->nfCalHist; + caldata->nfcal_pending = false; ath9k_hw_update_nfcal_hist_buffer(h, nfarray); - chan->rawNoiseFloor = h[0].privNF; - - return chan->rawNoiseFloor; + caldata->rawNoiseFloor = h[0].privNF; + return true; } -void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah) +void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah, + struct ath9k_channel *chan) { - struct ath_nf_limits *limit; + struct ath9k_nfcal_hist *h; + s16 default_nf; int i, j; - if (!ah->curchan || IS_CHAN_2GHZ(ah->curchan)) - limit = &ah->nf_2g; - else - limit = &ah->nf_5g; + if (!ah->caldata) + return; + h = ah->caldata->nfCalHist; + default_nf = ath9k_hw_get_default_nf(ah, chan); for (i = 0; i < NUM_NF_READINGS; i++) { - ah->nfCalHist[i].currIndex = 0; - ah->nfCalHist[i].privNF = limit->nominal; - ah->nfCalHist[i].invalidNFcount = - AR_PHY_CCA_FILTERWINDOW_LENGTH; + h[i].currIndex = 0; + h[i].privNF = default_nf; + h[i].invalidNFcount = AR_PHY_CCA_FILTERWINDOW_LENGTH; for (j = 0; j < ATH9K_NF_CAL_HIST_MAX; j++) { - ah->nfCalHist[i].nfCalBuffer[j] = limit->nominal; + h[i].nfCalBuffer[j] = default_nf; } } } s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan) { - s16 nf; - - if (chan->rawNoiseFloor == 0) - nf = -96; - else - nf = chan->rawNoiseFloor; - - if (!ath9k_hw_nf_in_range(ah, nf)) - nf = ATH_DEFAULT_NOISE_FLOOR; + if (!ah->caldata || !ah->caldata->rawNoiseFloor) + return ath9k_hw_get_default_nf(ah, chan); - return nf; + return ah->caldata->rawNoiseFloor; } EXPORT_SYMBOL(ath9k_hw_getchan_noise); diff --git a/drivers/net/wireless/ath/ath9k/calib.h b/drivers/net/wireless/ath/ath9k/calib.h index cd60d09cdda7..0a304b3eeeb6 100644 --- a/drivers/net/wireless/ath/ath9k/calib.h +++ b/drivers/net/wireless/ath/ath9k/calib.h @@ -108,11 +108,11 @@ struct ath9k_pacal_info{ }; bool ath9k_hw_reset_calvalid(struct ath_hw *ah); -void ath9k_hw_start_nfcal(struct ath_hw *ah); +void ath9k_hw_start_nfcal(struct ath_hw *ah, bool update); void ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan); -int16_t ath9k_hw_getnf(struct ath_hw *ah, - struct ath9k_channel *chan); -void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah); +bool ath9k_hw_getnf(struct ath_hw *ah, struct ath9k_channel *chan); +void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah, + struct ath9k_channel *chan); s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan); void ath9k_hw_reset_calibration(struct ath_hw *ah, struct ath9k_cal_list *currCal); diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h index 3756400e6bf9..43b9e21bc562 100644 --- a/drivers/net/wireless/ath/ath9k/htc.h +++ b/drivers/net/wireless/ath/ath9k/htc.h @@ -353,6 +353,8 @@ struct ath9k_htc_priv { u16 seq_no; u32 bmiss_cnt; + struct ath9k_hw_cal_data caldata[38]; + spinlock_t beacon_lock; bool tx_queues_stop; diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c index cf9bcc67ade2..ebed9d1691a5 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c @@ -125,6 +125,7 @@ static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv, struct ieee80211_conf *conf = &common->hw->conf; bool fastcc = true; struct ieee80211_channel *channel = hw->conf.channel; + struct ath9k_hw_cal_data *caldata; enum htc_phymode mode; __be16 htc_mode; u8 cmd_rsp; @@ -149,7 +150,8 @@ static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv, priv->ah->curchan->channel, channel->center_freq, conf_is_ht(conf), conf_is_ht40(conf)); - ret = ath9k_hw_reset(ah, hchan, fastcc); + caldata = &priv->caldata[channel->hw_value]; + ret = ath9k_hw_reset(ah, hchan, caldata, fastcc); if (ret) { ath_print(common, ATH_DBG_FATAL, "Unable to reset channel (%u Mhz) " @@ -1028,7 +1030,7 @@ static void ath9k_htc_radio_enable(struct ieee80211_hw *hw) ah->curchan = ath9k_cmn_get_curchannel(hw, ah); /* Reset the HW */ - ret = ath9k_hw_reset(ah, ah->curchan, false); + ret = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false); if (ret) { ath_print(common, ATH_DBG_FATAL, "Unable to reset hardware; reset status %d " @@ -1091,7 +1093,7 @@ static void ath9k_htc_radio_disable(struct ieee80211_hw *hw) ah->curchan = ath9k_cmn_get_curchannel(hw, ah); /* Reset the HW */ - ret = ath9k_hw_reset(ah, ah->curchan, false); + ret = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false); if (ret) { ath_print(common, ATH_DBG_FATAL, "Unable to reset hardware; reset status %d " @@ -1179,7 +1181,7 @@ static int ath9k_htc_start(struct ieee80211_hw *hw) ath9k_hw_configpcipowersave(ah, 0, 0); ath9k_hw_htc_resetinit(ah); - ret = ath9k_hw_reset(ah, init_channel, false); + ret = ath9k_hw_reset(ah, init_channel, ah->caldata, false); if (ret) { ath_print(common, ATH_DBG_FATAL, "Unable to reset hardware; reset status %d " diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 8d291ccf5c88..3384ca164562 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -610,7 +610,6 @@ static int __ath9k_hw_init(struct ath_hw *ah) else ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S); - ath9k_init_nfcal_hist_buffer(ah); ah->bb_watchdog_timeout_ms = 25; common->state = ATH_HW_INITIALIZED; @@ -1183,9 +1182,6 @@ static bool ath9k_hw_channel_change(struct ath_hw *ah, ath9k_hw_spur_mitigate_freq(ah, chan); - if (!chan->oneTimeCalsDone) - chan->oneTimeCalsDone = true; - return true; } @@ -1218,7 +1214,7 @@ bool ath9k_hw_check_alive(struct ath_hw *ah) EXPORT_SYMBOL(ath9k_hw_check_alive); int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan, - bool bChannelChange) + struct ath9k_hw_cal_data *caldata, bool bChannelChange) { struct ath_common *common = ath9k_hw_common(ah); u32 saveLedState; @@ -1243,9 +1239,19 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan, if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) return -EIO; - if (curchan && !ah->chip_fullsleep) + if (curchan && !ah->chip_fullsleep && ah->caldata) ath9k_hw_getnf(ah, curchan); + ah->caldata = caldata; + if (caldata && + (chan->channel != caldata->channel || + (chan->channelFlags & ~CHANNEL_CW_INT) != + (caldata->channelFlags & ~CHANNEL_CW_INT))) { + /* Operating channel changed, reset channel calibration data */ + memset(caldata, 0, sizeof(*caldata)); + ath9k_init_nfcal_hist_buffer(ah, chan); + } + if (bChannelChange && (ah->chip_fullsleep != true) && (ah->curchan != NULL) && @@ -1256,7 +1262,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan, if (ath9k_hw_channel_change(ah, chan)) { ath9k_hw_loadnf(ah, ah->curchan); - ath9k_hw_start_nfcal(ah); + ath9k_hw_start_nfcal(ah, true); return 0; } } @@ -1461,11 +1467,8 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan, if (ah->btcoex_hw.enabled) ath9k_hw_btcoex_enable(ah); - if (AR_SREV_9300_20_OR_LATER(ah)) { - ath9k_hw_loadnf(ah, curchan); - ath9k_hw_start_nfcal(ah); + if (AR_SREV_9300_20_OR_LATER(ah)) ar9003_hw_bb_watchdog_config(ah); - } return 0; } diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h index 2d30efc0b94f..399f7c1283cd 100644 --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -346,19 +346,25 @@ enum ath9k_int { CHANNEL_HT40PLUS | \ CHANNEL_HT40MINUS) -struct ath9k_channel { - struct ieee80211_channel *chan; +struct ath9k_hw_cal_data { u16 channel; u32 channelFlags; - u32 chanmode; int32_t CalValid; - bool oneTimeCalsDone; int8_t iCoff; int8_t qCoff; int16_t rawNoiseFloor; bool paprd_done; + bool nfcal_pending; u16 small_signal_gain[AR9300_MAX_CHAINS]; u32 pa_table[AR9300_MAX_CHAINS][PAPRD_TABLE_SZ]; + struct ath9k_nfcal_hist nfCalHist[NUM_NF_READINGS]; +}; + +struct ath9k_channel { + struct ieee80211_channel *chan; + u16 channel; + u32 channelFlags; + u32 chanmode; }; #define IS_CHAN_G(_c) ((((_c)->channelFlags & (CHANNEL_G)) == CHANNEL_G) || \ @@ -669,7 +675,7 @@ struct ath_hw { enum nl80211_iftype opmode; enum ath9k_power_mode power_mode; - struct ath9k_nfcal_hist nfCalHist[NUM_NF_READINGS]; + struct ath9k_hw_cal_data *caldata; struct ath9k_pacal_info pacal_info; struct ar5416Stats stats; struct ath9k_tx_queue_info txq[ATH9K_NUM_TX_QUEUES]; @@ -863,7 +869,7 @@ const char *ath9k_hw_probe(u16 vendorid, u16 devid); void ath9k_hw_deinit(struct ath_hw *ah); int ath9k_hw_init(struct ath_hw *ah); int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan, - bool bChannelChange); + struct ath9k_hw_cal_data *caldata, bool bChannelChange); int ath9k_hw_fill_cap_info(struct ath_hw *ah); u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan); @@ -958,9 +964,10 @@ void ar9003_hw_bb_watchdog_read(struct ath_hw *ah); void ar9003_hw_bb_watchdog_dbg_info(struct ath_hw *ah); void ar9003_paprd_enable(struct ath_hw *ah, bool val); void ar9003_paprd_populate_single_table(struct ath_hw *ah, - struct ath9k_channel *chan, int chain); -int ar9003_paprd_create_curve(struct ath_hw *ah, struct ath9k_channel *chan, - int chain); + struct ath9k_hw_cal_data *caldata, + int chain); +int ar9003_paprd_create_curve(struct ath_hw *ah, + struct ath9k_hw_cal_data *caldata, int chain); int ar9003_paprd_setup_gain_table(struct ath_hw *ah, int chain); int ar9003_paprd_init_table(struct ath_hw *ah); bool ar9003_paprd_is_done(struct ath_hw *ah); diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 0429dda0961f..3caa32316e7b 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -154,6 +154,27 @@ void ath9k_ps_restore(struct ath_softc *sc) spin_unlock_irqrestore(&sc->sc_pm_lock, flags); } +static void ath_start_ani(struct ath_common *common) +{ + struct ath_hw *ah = common->ah; + unsigned long timestamp = jiffies_to_msecs(jiffies); + struct ath_softc *sc = (struct ath_softc *) common->priv; + + if (!(sc->sc_flags & SC_OP_ANI_RUN)) + return; + + if (sc->sc_flags & SC_OP_OFFCHANNEL) + return; + + common->ani.longcal_timer = timestamp; + common->ani.shortcal_timer = timestamp; + common->ani.checkani_timer = timestamp; + + mod_timer(&common->ani.timer, + jiffies + + msecs_to_jiffies((u32)ah->config.ani_poll_interval)); +} + /* * Set/change channels. If the channel is really being changed, it's done * by reseting the chip. To accomplish this we must first cleanup any pending @@ -162,16 +183,23 @@ void ath9k_ps_restore(struct ath_softc *sc) int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, struct ath9k_channel *hchan) { + struct ath_wiphy *aphy = hw->priv; struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(ah); struct ieee80211_conf *conf = &common->hw->conf; bool fastcc = true, stopped; struct ieee80211_channel *channel = hw->conf.channel; + struct ath9k_hw_cal_data *caldata = NULL; int r; if (sc->sc_flags & SC_OP_INVALID) return -EIO; + del_timer_sync(&common->ani.timer); + cancel_work_sync(&sc->paprd_work); + cancel_work_sync(&sc->hw_check_work); + cancel_delayed_work_sync(&sc->tx_complete_work); + ath9k_ps_wakeup(sc); /* @@ -191,9 +219,12 @@ int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, * to flush data frames already in queue because of * changing channel. */ - if (!stopped || (sc->sc_flags & SC_OP_FULL_RESET)) + if (!stopped || !(sc->sc_flags & SC_OP_OFFCHANNEL)) fastcc = false; + if (!(sc->sc_flags & SC_OP_OFFCHANNEL)) + caldata = &aphy->caldata; + ath_print(common, ATH_DBG_CONFIG, "(%u MHz) -> (%u MHz), conf_is_ht40: %d\n", sc->sc_ah->curchan->channel, @@ -201,7 +232,7 @@ int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, spin_lock_bh(&sc->sc_resetlock); - r = ath9k_hw_reset(ah, hchan, fastcc); + r = ath9k_hw_reset(ah, hchan, caldata, fastcc); if (r) { ath_print(common, ATH_DBG_FATAL, "Unable to reset channel (%u MHz), " @@ -212,8 +243,6 @@ int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, } spin_unlock_bh(&sc->sc_resetlock); - sc->sc_flags &= ~SC_OP_FULL_RESET; - if (ath_startrecv(sc) != 0) { ath_print(common, ATH_DBG_FATAL, "Unable to restart recv logic\n"); @@ -225,6 +254,12 @@ int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, ath_update_txpow(sc); ath9k_hw_set_interrupts(ah, ah->imask); + if (!(sc->sc_flags & (SC_OP_OFFCHANNEL | SC_OP_SCANNING))) { + ath_start_ani(common); + ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0); + ath_beacon_config(sc, NULL); + } + ps_restore: ath9k_ps_restore(sc); return r; @@ -233,17 +268,19 @@ int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, static void ath_paprd_activate(struct ath_softc *sc) { struct ath_hw *ah = sc->sc_ah; + struct ath9k_hw_cal_data *caldata = ah->caldata; int chain; - if (!ah->curchan->paprd_done) + if (!caldata || !caldata->paprd_done) return; ath9k_ps_wakeup(sc); + ar9003_paprd_enable(ah, false); for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) { if (!(ah->caps.tx_chainmask & BIT(chain))) continue; - ar9003_paprd_populate_single_table(ah, ah->curchan, chain); + ar9003_paprd_populate_single_table(ah, caldata, chain); } ar9003_paprd_enable(ah, true); @@ -261,6 +298,7 @@ void ath_paprd_calibrate(struct work_struct *work) int band = hw->conf.channel->band; struct ieee80211_supported_band *sband = &sc->sbands[band]; struct ath_tx_control txctl; + struct ath9k_hw_cal_data *caldata = ah->caldata; int qnum, ftype; int chain_ok = 0; int chain; @@ -268,6 +306,9 @@ void ath_paprd_calibrate(struct work_struct *work) int time_left; int i; + if (!caldata) + return; + skb = alloc_skb(len, GFP_KERNEL); if (!skb) return; @@ -322,7 +363,7 @@ void ath_paprd_calibrate(struct work_struct *work) if (!ar9003_paprd_is_done(ah)) break; - if (ar9003_paprd_create_curve(ah, ah->curchan, chain) != 0) + if (ar9003_paprd_create_curve(ah, caldata, chain) != 0) break; chain_ok = 1; @@ -330,7 +371,7 @@ void ath_paprd_calibrate(struct work_struct *work) kfree_skb(skb); if (chain_ok) { - ah->curchan->paprd_done = true; + caldata->paprd_done = true; ath_paprd_activate(sc); } @@ -439,33 +480,14 @@ set_timer: cal_interval = min(cal_interval, (u32)short_cal_interval); mod_timer(&common->ani.timer, jiffies + msecs_to_jiffies(cal_interval)); - if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_PAPRD) && - !(sc->sc_flags & SC_OP_SCANNING)) { - if (!sc->sc_ah->curchan->paprd_done) + if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_PAPRD) && ah->caldata) { + if (!ah->caldata->paprd_done) ieee80211_queue_work(sc->hw, &sc->paprd_work); else ath_paprd_activate(sc); } } -static void ath_start_ani(struct ath_common *common) -{ - struct ath_hw *ah = common->ah; - unsigned long timestamp = jiffies_to_msecs(jiffies); - struct ath_softc *sc = (struct ath_softc *) common->priv; - - if (!(sc->sc_flags & SC_OP_ANI_RUN)) - return; - - common->ani.longcal_timer = timestamp; - common->ani.shortcal_timer = timestamp; - common->ani.checkani_timer = timestamp; - - mod_timer(&common->ani.timer, - jiffies + - msecs_to_jiffies((u32)ah->config.ani_poll_interval)); -} - /* * Update tx/rx chainmask. For legacy association, * hard code chainmask to 1x1, for 11n association, use @@ -477,7 +499,7 @@ void ath_update_chainmask(struct ath_softc *sc, int is_ht) struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(ah); - if ((sc->sc_flags & SC_OP_SCANNING) || is_ht || + if ((sc->sc_flags & SC_OP_OFFCHANNEL) || is_ht || (ah->btcoex_hw.scheme != ATH_BTCOEX_CFG_NONE)) { common->tx_chainmask = ah->caps.tx_chainmask; common->rx_chainmask = ah->caps.rx_chainmask; @@ -817,7 +839,7 @@ void ath_radio_enable(struct ath_softc *sc, struct ieee80211_hw *hw) ah->curchan = ath_get_curchannel(sc, sc->hw); spin_lock_bh(&sc->sc_resetlock); - r = ath9k_hw_reset(ah, ah->curchan, false); + r = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false); if (r) { ath_print(common, ATH_DBG_FATAL, "Unable to reset channel (%u MHz), " @@ -877,7 +899,7 @@ void ath_radio_disable(struct ath_softc *sc, struct ieee80211_hw *hw) ah->curchan = ath_get_curchannel(sc, hw); spin_lock_bh(&sc->sc_resetlock); - r = ath9k_hw_reset(ah, ah->curchan, false); + r = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false); if (r) { ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_FATAL, "Unable to reset channel (%u MHz), " @@ -910,7 +932,7 @@ int ath_reset(struct ath_softc *sc, bool retry_tx) ath_flushrecv(sc); spin_lock_bh(&sc->sc_resetlock); - r = ath9k_hw_reset(ah, sc->sc_ah->curchan, false); + r = ath9k_hw_reset(ah, sc->sc_ah->curchan, ah->caldata, false); if (r) ath_print(common, ATH_DBG_FATAL, "Unable to reset hardware; reset status %d\n", r); @@ -1085,7 +1107,7 @@ static int ath9k_start(struct ieee80211_hw *hw) * and then setup of the interrupt mask. */ spin_lock_bh(&sc->sc_resetlock); - r = ath9k_hw_reset(ah, init_channel, false); + r = ath9k_hw_reset(ah, init_channel, ah->caldata, false); if (r) { ath_print(common, ATH_DBG_FATAL, "Unable to reset hardware; reset status %d " @@ -1579,6 +1601,10 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) aphy->chan_idx = pos; aphy->chan_is_ht = conf_is_ht(conf); + if (hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) + sc->sc_flags |= SC_OP_OFFCHANNEL; + else + sc->sc_flags &= ~SC_OP_OFFCHANNEL; if (aphy->state == ATH_WIPHY_SCAN || aphy->state == ATH_WIPHY_ACTIVE) @@ -1990,7 +2016,6 @@ static void ath9k_sw_scan_start(struct ieee80211_hw *hw) { struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; - struct ath_common *common = ath9k_hw_common(sc->sc_ah); mutex_lock(&sc->mutex); if (ath9k_wiphy_scanning(sc)) { @@ -2008,10 +2033,6 @@ static void ath9k_sw_scan_start(struct ieee80211_hw *hw) aphy->state = ATH_WIPHY_SCAN; ath9k_wiphy_pause_all_forced(sc, aphy); sc->sc_flags |= SC_OP_SCANNING; - del_timer_sync(&common->ani.timer); - cancel_work_sync(&sc->paprd_work); - cancel_work_sync(&sc->hw_check_work); - cancel_delayed_work_sync(&sc->tx_complete_work); mutex_unlock(&sc->mutex); } @@ -2023,15 +2044,10 @@ static void ath9k_sw_scan_complete(struct ieee80211_hw *hw) { struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; - struct ath_common *common = ath9k_hw_common(sc->sc_ah); mutex_lock(&sc->mutex); aphy->state = ATH_WIPHY_ACTIVE; sc->sc_flags &= ~SC_OP_SCANNING; - sc->sc_flags |= SC_OP_FULL_RESET; - ath_start_ani(common); - ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0); - ath_beacon_config(sc, NULL); mutex_unlock(&sc->mutex); } diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index da0cfe90c38a..a3fc987ebab0 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -1140,6 +1140,11 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp) if (flush) goto requeue; + retval = ath9k_rx_skb_preprocess(common, hw, hdr, &rs, + rxs, &decrypt_error); + if (retval) + goto requeue; + rxs->mactime = (tsf & ~0xffffffffULL) | rs.rs_tstamp; if (rs.rs_tstamp > tsf_lower && unlikely(rs.rs_tstamp - tsf_lower > 0x10000000)) @@ -1149,11 +1154,6 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp) unlikely(tsf_lower - rs.rs_tstamp > 0x10000000)) rxs->mactime += 0x100000000ULL; - retval = ath9k_rx_skb_preprocess(common, hw, hdr, &rs, - rxs, &decrypt_error); - if (retval) - goto requeue; - /* Ensure we always have an skb to requeue once we are done * processing the current buffer's skb */ requeue_skb = ath_rxbuf_alloc(common, common->rx_bufsize, GFP_ATOMIC); diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 501b72821b4d..4dda14e36227 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -120,26 +120,14 @@ static void ath_tx_queue_tid(struct ath_txq *txq, struct ath_atx_tid *tid) list_add_tail(&ac->list, &txq->axq_acq); } -static void ath_tx_pause_tid(struct ath_softc *sc, struct ath_atx_tid *tid) -{ - struct ath_txq *txq = &sc->tx.txq[tid->ac->qnum]; - - spin_lock_bh(&txq->axq_lock); - tid->paused++; - spin_unlock_bh(&txq->axq_lock); -} - static void ath_tx_resume_tid(struct ath_softc *sc, struct ath_atx_tid *tid) { struct ath_txq *txq = &sc->tx.txq[tid->ac->qnum]; - BUG_ON(tid->paused <= 0); - spin_lock_bh(&txq->axq_lock); - - tid->paused--; + WARN_ON(!tid->paused); - if (tid->paused > 0) - goto unlock; + spin_lock_bh(&txq->axq_lock); + tid->paused = false; if (list_empty(&tid->buf_q)) goto unlock; @@ -157,15 +145,10 @@ static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid) struct list_head bf_head; INIT_LIST_HEAD(&bf_head); - BUG_ON(tid->paused <= 0); - spin_lock_bh(&txq->axq_lock); + WARN_ON(!tid->paused); - tid->paused--; - - if (tid->paused > 0) { - spin_unlock_bh(&txq->axq_lock); - return; - } + spin_lock_bh(&txq->axq_lock); + tid->paused = false; while (!list_empty(&tid->buf_q)) { bf = list_first_entry(&tid->buf_q, struct ath_buf, list); @@ -811,7 +794,7 @@ void ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta, an = (struct ath_node *)sta->drv_priv; txtid = ATH_AN_2_TID(an, tid); txtid->state |= AGGR_ADDBA_PROGRESS; - ath_tx_pause_tid(sc, txtid); + txtid->paused = true; *ssn = txtid->seq_start; } @@ -835,10 +818,9 @@ void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid) return; } - ath_tx_pause_tid(sc, txtid); - /* drop all software retried frames and mark this TID */ spin_lock_bh(&txq->axq_lock); + txtid->paused = true; while (!list_empty(&txtid->buf_q)) { bf = list_first_entry(&txtid->buf_q, struct ath_buf, list); if (!bf_isretried(bf)) { @@ -1181,7 +1163,7 @@ void ath_drain_all_txq(struct ath_softc *sc, bool retry_tx) "Failed to stop TX DMA. Resetting hardware!\n"); spin_lock_bh(&sc->sc_resetlock); - r = ath9k_hw_reset(ah, sc->sc_ah->curchan, false); + r = ath9k_hw_reset(ah, sc->sc_ah->curchan, ah->caldata, false); if (r) ath_print(common, ATH_DBG_FATAL, "Unable to reset hardware; reset status %d\n", diff --git a/drivers/net/wireless/ipw2x00/ipw2100.c b/drivers/net/wireless/ipw2x00/ipw2100.c index c24c5efeae1f..16bbfa3189a5 100644 --- a/drivers/net/wireless/ipw2x00/ipw2100.c +++ b/drivers/net/wireless/ipw2x00/ipw2100.c @@ -1924,6 +1924,10 @@ static int ipw2100_net_init(struct net_device *dev) bg_band->channels = kzalloc(geo->bg_channels * sizeof(struct ieee80211_channel), GFP_KERNEL); + if (!bg_band->channels) { + ipw2100_down(priv); + return -ENOMEM; + } /* translate geo->bg to bg_band.channels */ for (i = 0; i < geo->bg_channels; i++) { bg_band->channels[i].band = IEEE80211_BAND_2GHZ; diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c index f052c6d09b37..d706b8afbe5a 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c @@ -980,7 +980,7 @@ ssize_t iwl_ucode_bt_stats_read(struct file *file, le32_to_cpu(bt->lo_priority_tx_req_cnt), accum_bt->lo_priority_tx_req_cnt); pos += scnprintf(buf + pos, bufsz - pos, - "lo_priority_rx_denied_cnt:\t%u\t\t\t%u\n", + "lo_priority_tx_denied_cnt:\t%u\t\t\t%u\n", le32_to_cpu(bt->lo_priority_tx_denied_cnt), accum_bt->lo_priority_tx_denied_cnt); pos += scnprintf(buf + pos, bufsz - pos, diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c index a1b6d202d57c..9dd9e64c2b0b 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c @@ -1429,7 +1429,7 @@ int iwlagn_manage_ibss_station(struct iwl_priv *priv, void iwl_free_tfds_in_queue(struct iwl_priv *priv, int sta_id, int tid, int freed) { - WARN_ON(!spin_is_locked(&priv->sta_lock)); + lockdep_assert_held(&priv->sta_lock); if (priv->stations[sta_id].tid[tid].tfds_in_queue >= freed) priv->stations[sta_id].tid[tid].tfds_in_queue -= freed; diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c index 35c86d22b14b..23e5c42e7d7e 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c @@ -300,8 +300,9 @@ static int rs_tl_turn_on_agg_for_tid(struct iwl_priv *priv, struct ieee80211_sta *sta) { int ret = -EAGAIN; + u32 load = rs_tl_get_load(lq_data, tid); - if (rs_tl_get_load(lq_data, tid) > IWL_AGG_LOAD_THRESHOLD) { + if (load > IWL_AGG_LOAD_THRESHOLD) { IWL_DEBUG_HT(priv, "Starting Tx agg: STA: %pM tid: %d\n", sta->addr, tid); ret = ieee80211_start_tx_ba_session(sta, tid); @@ -311,12 +312,14 @@ static int rs_tl_turn_on_agg_for_tid(struct iwl_priv *priv, * this might be cause by reloading firmware * stop the tx ba session here */ - IWL_DEBUG_HT(priv, "Fail start Tx agg on tid: %d\n", + IWL_ERR(priv, "Fail start Tx agg on tid: %d\n", tid); ieee80211_stop_tx_ba_session(sta, tid); } - } else - IWL_ERR(priv, "Fail finding valid aggregation tid: %d\n", tid); + } else { + IWL_ERR(priv, "Aggregation not enabled for tid %d " + "because load = %u\n", tid, load); + } return ret; } diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c index 55a1b31fd09a..d04502d54df3 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c @@ -1117,7 +1117,7 @@ int iwlagn_txq_check_empty(struct iwl_priv *priv, u8 *addr = priv->stations[sta_id].sta.sta.addr; struct iwl_tid_data *tid_data = &priv->stations[sta_id].tid[tid]; - WARN_ON(!spin_is_locked(&priv->sta_lock)); + lockdep_assert_held(&priv->sta_lock); switch (priv->stations[sta_id].tid[tid].agg.state) { case IWL_EMPTYING_HW_QUEUE_DELBA: @@ -1331,7 +1331,14 @@ void iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv, tid = ba_resp->tid; agg = &priv->stations[sta_id].tid[tid].agg; if (unlikely(agg->txq_id != scd_flow)) { - IWL_ERR(priv, "BA scd_flow %d does not match txq_id %d\n", + /* + * FIXME: this is a uCode bug which need to be addressed, + * log the information and return for now! + * since it is possible happen very often and in order + * not to fill the syslog, don't enable the logging by default + */ + IWL_DEBUG_TX_REPLY(priv, + "BA scd_flow %d does not match txq_id %d\n", scd_flow, agg->txq_id); return; } diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index 8024d44ce4bb..8ccb6d205b6d 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -2000,6 +2000,7 @@ void iwl_mac_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { struct iwl_priv *priv = hw->priv; + bool scan_completed = false; IWL_DEBUG_MAC80211(priv, "enter\n"); @@ -2013,7 +2014,7 @@ void iwl_mac_remove_interface(struct ieee80211_hw *hw, if (priv->vif == vif) { priv->vif = NULL; if (priv->scan_vif == vif) { - ieee80211_scan_completed(priv->hw, true); + scan_completed = true; priv->scan_vif = NULL; priv->scan_request = NULL; } @@ -2021,6 +2022,9 @@ void iwl_mac_remove_interface(struct ieee80211_hw *hw, } mutex_unlock(&priv->mutex); + if (scan_completed) + ieee80211_scan_completed(priv->hw, true); + IWL_DEBUG_MAC80211(priv, "leave\n"); } diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h index 5c2bcef5df0c..0b961a353ff6 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debug.h +++ b/drivers/net/wireless/iwlwifi/iwl-debug.h @@ -71,7 +71,7 @@ do { \ #define IWL_DEBUG(__priv, level, fmt, args...) #define IWL_DEBUG_LIMIT(__priv, level, fmt, args...) static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level, - void *p, u32 len) + const void *p, u32 len) {} #endif /* CONFIG_IWLWIFI_DEBUG */ diff --git a/drivers/net/wireless/iwlwifi/iwl-devtrace.h b/drivers/net/wireless/iwlwifi/iwl-devtrace.h index ae7319bb3a99..4cf864c664ee 100644 --- a/drivers/net/wireless/iwlwifi/iwl-devtrace.h +++ b/drivers/net/wireless/iwlwifi/iwl-devtrace.h @@ -193,7 +193,7 @@ TRACE_EVENT(iwlwifi_dev_tx, __entry->framelen = buf0_len + buf1_len; memcpy(__get_dynamic_array(tfd), tfd, tfdlen); memcpy(__get_dynamic_array(buf0), buf0, buf0_len); - memcpy(__get_dynamic_array(buf1), buf1, buf0_len); + memcpy(__get_dynamic_array(buf1), buf1, buf1_len); ), TP_printk("[%p] TX %.2x (%zu bytes)", __entry->priv, diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c index b0c6b0473901..a4b3663a262f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-scan.c +++ b/drivers/net/wireless/iwlwifi/iwl-scan.c @@ -298,7 +298,7 @@ EXPORT_SYMBOL(iwl_init_scan_params); static int iwl_scan_initiate(struct iwl_priv *priv, struct ieee80211_vif *vif) { - WARN_ON(!mutex_is_locked(&priv->mutex)); + lockdep_assert_held(&priv->mutex); IWL_DEBUG_INFO(priv, "Starting scan...\n"); set_bit(STATUS_SCANNING, &priv->status); diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c index 9511f03f07e0..7e0829be5e78 100644 --- a/drivers/net/wireless/iwlwifi/iwl-sta.c +++ b/drivers/net/wireless/iwlwifi/iwl-sta.c @@ -773,7 +773,7 @@ static int iwl_send_static_wepkey_cmd(struct iwl_priv *priv, u8 send_if_empty) int iwl_restore_default_wep_keys(struct iwl_priv *priv) { - WARN_ON(!mutex_is_locked(&priv->mutex)); + lockdep_assert_held(&priv->mutex); return iwl_send_static_wepkey_cmd(priv, 0); } @@ -784,7 +784,7 @@ int iwl_remove_default_wep_key(struct iwl_priv *priv, { int ret; - WARN_ON(!mutex_is_locked(&priv->mutex)); + lockdep_assert_held(&priv->mutex); IWL_DEBUG_WEP(priv, "Removing default WEP key: idx=%d\n", keyconf->keyidx); @@ -808,7 +808,7 @@ int iwl_set_default_wep_key(struct iwl_priv *priv, { int ret; - WARN_ON(!mutex_is_locked(&priv->mutex)); + lockdep_assert_held(&priv->mutex); if (keyconf->keylen != WEP_KEY_LEN_128 && keyconf->keylen != WEP_KEY_LEN_64) { diff --git a/drivers/net/wireless/libertas/cfg.c b/drivers/net/wireless/libertas/cfg.c index 25f902760980..8e9fbfd804b6 100644 --- a/drivers/net/wireless/libertas/cfg.c +++ b/drivers/net/wireless/libertas/cfg.c @@ -257,6 +257,29 @@ static int lbs_add_supported_rates_tlv(u8 *tlv) return sizeof(rate_tlv->header) + i; } +/* Add common rates from a TLV and return the new end of the TLV */ +static u8 * +add_ie_rates(u8 *tlv, const u8 *ie, int *nrates) +{ + int hw, ap, ap_max = ie[1]; + u8 hw_rate; + + /* Advance past IE header */ + ie += 2; + + lbs_deb_hex(LBS_DEB_ASSOC, "AP IE Rates", (u8 *) ie, ap_max); + + for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) { + hw_rate = lbs_rates[hw].bitrate / 5; + for (ap = 0; ap < ap_max; ap++) { + if (hw_rate == (ie[ap] & 0x7f)) { + *tlv++ = ie[ap]; + *nrates = *nrates + 1; + } + } + } + return tlv; +} /* * Adds a TLV with all rates the hardware *and* BSS supports. @@ -264,8 +287,11 @@ static int lbs_add_supported_rates_tlv(u8 *tlv) static int lbs_add_common_rates_tlv(u8 *tlv, struct cfg80211_bss *bss) { struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv; - const u8 *rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES); - int n; + const u8 *rates_eid, *ext_rates_eid; + int n = 0; + + rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES); + ext_rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_EXT_SUPP_RATES); /* * 01 00 TLV_TYPE_RATES @@ -275,26 +301,21 @@ static int lbs_add_common_rates_tlv(u8 *tlv, struct cfg80211_bss *bss) rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES); tlv += sizeof(rate_tlv->header); - if (!rates_eid) { + /* Add basic rates */ + if (rates_eid) { + tlv = add_ie_rates(tlv, rates_eid, &n); + + /* Add extended rates, if any */ + if (ext_rates_eid) + tlv = add_ie_rates(tlv, ext_rates_eid, &n); + } else { + lbs_deb_assoc("assoc: bss had no basic rate IE\n"); /* Fallback: add basic 802.11b rates */ *tlv++ = 0x82; *tlv++ = 0x84; *tlv++ = 0x8b; *tlv++ = 0x96; n = 4; - } else { - int hw, ap; - u8 ap_max = rates_eid[1]; - n = 0; - for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) { - u8 hw_rate = lbs_rates[hw].bitrate / 5; - for (ap = 0; ap < ap_max; ap++) { - if (hw_rate == (rates_eid[ap+2] & 0x7f)) { - *tlv++ = rates_eid[ap+2]; - n++; - } - } - } } rate_tlv->header.len = cpu_to_le16(n); @@ -465,7 +486,15 @@ static int lbs_ret_scan(struct lbs_private *priv, unsigned long dummy, lbs_deb_enter(LBS_DEB_CFG80211); bsssize = get_unaligned_le16(&scanresp->bssdescriptsize); - nr_sets = le16_to_cpu(resp->size); + nr_sets = le16_to_cpu(scanresp->nr_sets); + + lbs_deb_scan("scan response: %d BSSs (%d bytes); resp size %d bytes\n", + nr_sets, bsssize, le16_to_cpu(resp->size)); + + if (nr_sets == 0) { + ret = 0; + goto done; + } /* * The general layout of the scan response is described in chapter @@ -670,8 +699,13 @@ static void lbs_scan_worker(struct work_struct *work) if (priv->scan_channel >= priv->scan_req->n_channels) { /* Mark scan done */ - cfg80211_scan_done(priv->scan_req, false); + if (priv->internal_scan) + kfree(priv->scan_req); + else + cfg80211_scan_done(priv->scan_req, false); + priv->scan_req = NULL; + priv->last_scan = jiffies; } /* Restart network */ @@ -682,10 +716,33 @@ static void lbs_scan_worker(struct work_struct *work) kfree(scan_cmd); + /* Wake up anything waiting on scan completion */ + if (priv->scan_req == NULL) { + lbs_deb_scan("scan: waking up waiters\n"); + wake_up_all(&priv->scan_q); + } + out_no_scan_cmd: lbs_deb_leave(LBS_DEB_SCAN); } +static void _internal_start_scan(struct lbs_private *priv, bool internal, + struct cfg80211_scan_request *request) +{ + lbs_deb_enter(LBS_DEB_CFG80211); + + lbs_deb_scan("scan: ssids %d, channels %d, ie_len %zd\n", + request->n_ssids, request->n_channels, request->ie_len); + + priv->scan_channel = 0; + queue_delayed_work(priv->work_thread, &priv->scan_work, + msecs_to_jiffies(50)); + + priv->scan_req = request; + priv->internal_scan = internal; + + lbs_deb_leave(LBS_DEB_CFG80211); +} static int lbs_cfg_scan(struct wiphy *wiphy, struct net_device *dev, @@ -702,18 +759,11 @@ static int lbs_cfg_scan(struct wiphy *wiphy, goto out; } - lbs_deb_scan("scan: ssids %d, channels %d, ie_len %zd\n", - request->n_ssids, request->n_channels, request->ie_len); - - priv->scan_channel = 0; - queue_delayed_work(priv->work_thread, &priv->scan_work, - msecs_to_jiffies(50)); + _internal_start_scan(priv, false, request); if (priv->surpriseremoved) ret = -EIO; - priv->scan_req = request; - out: lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); return ret; @@ -1000,6 +1050,7 @@ static int lbs_associate(struct lbs_private *priv, int status; int ret; u8 *pos = &(cmd->iebuf[0]); + u8 *tmp; lbs_deb_enter(LBS_DEB_CFG80211); @@ -1044,7 +1095,9 @@ static int lbs_associate(struct lbs_private *priv, pos += lbs_add_cf_param_tlv(pos); /* add rates TLV */ + tmp = pos + 4; /* skip Marvell IE header */ pos += lbs_add_common_rates_tlv(pos, bss); + lbs_deb_hex(LBS_DEB_ASSOC, "Common Rates", tmp, pos - tmp); /* add auth type TLV */ if (priv->fwrelease >= 0x09000000) @@ -1124,7 +1177,62 @@ done: return ret; } +static struct cfg80211_scan_request * +_new_connect_scan_req(struct wiphy *wiphy, struct cfg80211_connect_params *sme) +{ + struct cfg80211_scan_request *creq = NULL; + int i, n_channels = 0; + enum ieee80211_band band; + + for (band = 0; band < IEEE80211_NUM_BANDS; band++) { + if (wiphy->bands[band]) + n_channels += wiphy->bands[band]->n_channels; + } + + creq = kzalloc(sizeof(*creq) + sizeof(struct cfg80211_ssid) + + n_channels * sizeof(void *), + GFP_ATOMIC); + if (!creq) + return NULL; + + /* SSIDs come after channels */ + creq->ssids = (void *)&creq->channels[n_channels]; + creq->n_channels = n_channels; + creq->n_ssids = 1; + + /* Scan all available channels */ + i = 0; + for (band = 0; band < IEEE80211_NUM_BANDS; band++) { + int j; + + if (!wiphy->bands[band]) + continue; + + for (j = 0; j < wiphy->bands[band]->n_channels; j++) { + /* ignore disabled channels */ + if (wiphy->bands[band]->channels[j].flags & + IEEE80211_CHAN_DISABLED) + continue; + + creq->channels[i] = &wiphy->bands[band]->channels[j]; + i++; + } + } + if (i) { + /* Set real number of channels specified in creq->channels[] */ + creq->n_channels = i; + + /* Scan for the SSID we're going to connect to */ + memcpy(creq->ssids[0].ssid, sme->ssid, sme->ssid_len); + creq->ssids[0].ssid_len = sme->ssid_len; + } else { + /* No channels found... */ + kfree(creq); + creq = NULL; + } + return creq; +} static int lbs_cfg_connect(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_connect_params *sme) @@ -1136,37 +1244,43 @@ static int lbs_cfg_connect(struct wiphy *wiphy, struct net_device *dev, lbs_deb_enter(LBS_DEB_CFG80211); - if (sme->bssid) { - bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid, - sme->ssid, sme->ssid_len, - WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS); - } else { - /* - * Here we have an impedance mismatch. The firmware command - * CMD_802_11_ASSOCIATE always needs a BSSID, it cannot - * connect otherwise. However, for the connect-API of - * cfg80211 the bssid is purely optional. We don't get one, - * except the user specifies one on the "iw" command line. - * - * If we don't got one, we could initiate a scan and look - * for the best matching cfg80211_bss entry. - * - * Or, better yet, net/wireless/sme.c get's rewritten into - * something more generally useful. + if (!sme->bssid) { + /* Run a scan if one isn't in-progress already and if the last + * scan was done more than 2 seconds ago. */ - lbs_pr_err("TODO: no BSS specified\n"); - ret = -ENOTSUPP; - goto done; - } + if (priv->scan_req == NULL && + time_after(jiffies, priv->last_scan + (2 * HZ))) { + struct cfg80211_scan_request *creq; + creq = _new_connect_scan_req(wiphy, sme); + if (!creq) { + ret = -EINVAL; + goto done; + } + + lbs_deb_assoc("assoc: scanning for compatible AP\n"); + _internal_start_scan(priv, true, creq); + } + + /* Wait for any in-progress scan to complete */ + lbs_deb_assoc("assoc: waiting for scan to complete\n"); + wait_event_interruptible_timeout(priv->scan_q, + (priv->scan_req == NULL), + (15 * HZ)); + lbs_deb_assoc("assoc: scanning competed\n"); + } + /* Find the BSS we want using available scan results */ + bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid, + sme->ssid, sme->ssid_len, + WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS); if (!bss) { - lbs_pr_err("assicate: bss %pM not in scan results\n", + lbs_pr_err("assoc: bss %pM not in scan results\n", sme->bssid); ret = -ENOENT; goto done; } - lbs_deb_assoc("trying %pM", sme->bssid); + lbs_deb_assoc("trying %pM\n", bss->bssid); lbs_deb_assoc("cipher 0x%x, key index %d, key len %d\n", sme->crypto.cipher_group, sme->key_idx, sme->key_len); @@ -1229,7 +1343,7 @@ static int lbs_cfg_connect(struct wiphy *wiphy, struct net_device *dev, lbs_set_radio(priv, preamble, 1); /* Do the actual association */ - lbs_associate(priv, bss, sme); + ret = lbs_associate(priv, bss, sme); done: if (bss) diff --git a/drivers/net/wireless/libertas/dev.h b/drivers/net/wireless/libertas/dev.h index 3c7e255e18c7..f062ed583901 100644 --- a/drivers/net/wireless/libertas/dev.h +++ b/drivers/net/wireless/libertas/dev.h @@ -161,6 +161,11 @@ struct lbs_private { /** Scanning */ struct delayed_work scan_work; int scan_channel; + /* Queue of things waiting for scan completion */ + wait_queue_head_t scan_q; + /* Whether the scan was initiated internally and not by cfg80211 */ + bool internal_scan; + unsigned long last_scan; }; extern struct cmd_confirm_sleep confirm_sleep; diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c index 258967144b96..24958a86747b 100644 --- a/drivers/net/wireless/libertas/main.c +++ b/drivers/net/wireless/libertas/main.c @@ -719,6 +719,7 @@ static int lbs_init_adapter(struct lbs_private *priv) priv->deep_sleep_required = 0; priv->wakeup_dev_required = 0; init_waitqueue_head(&priv->ds_awake_q); + init_waitqueue_head(&priv->scan_q); priv->authtype_auto = 1; priv->is_host_sleep_configured = 0; priv->is_host_sleep_activated = 0; diff --git a/drivers/net/wireless/p54/p54pci.c b/drivers/net/wireless/p54/p54pci.c index 822f8dc26e9c..71a101fb2e4e 100644 --- a/drivers/net/wireless/p54/p54pci.c +++ b/drivers/net/wireless/p54/p54pci.c @@ -43,6 +43,8 @@ static DEFINE_PCI_DEVICE_TABLE(p54p_table) = { { PCI_DEVICE(0x1260, 0x3886) }, /* Intersil PRISM Xbow Wireless LAN adapter (Symbol AP-300) */ { PCI_DEVICE(0x1260, 0xffff) }, + /* Standard Microsystems Corp SMC2802W Wireless PCI */ + { PCI_DEVICE(0x10b8, 0x2802) }, { }, }; diff --git a/drivers/net/wireless/rt2x00/rt2x00pci.c b/drivers/net/wireless/rt2x00/rt2x00pci.c index 19b262e1ddbe..63c2cc408e15 100644 --- a/drivers/net/wireless/rt2x00/rt2x00pci.c +++ b/drivers/net/wireless/rt2x00/rt2x00pci.c @@ -240,16 +240,16 @@ int rt2x00pci_probe(struct pci_dev *pci_dev, const struct pci_device_id *id) struct rt2x00_dev *rt2x00dev; int retval; - retval = pci_request_regions(pci_dev, pci_name(pci_dev)); + retval = pci_enable_device(pci_dev); if (retval) { - ERROR_PROBE("PCI request regions failed.\n"); + ERROR_PROBE("Enable device failed.\n"); return retval; } - retval = pci_enable_device(pci_dev); + retval = pci_request_regions(pci_dev, pci_name(pci_dev)); if (retval) { - ERROR_PROBE("Enable device failed.\n"); - goto exit_release_regions; + ERROR_PROBE("PCI request regions failed.\n"); + goto exit_disable_device; } pci_set_master(pci_dev); @@ -260,14 +260,14 @@ int rt2x00pci_probe(struct pci_dev *pci_dev, const struct pci_device_id *id) if (dma_set_mask(&pci_dev->dev, DMA_BIT_MASK(32))) { ERROR_PROBE("PCI DMA not supported.\n"); retval = -EIO; - goto exit_disable_device; + goto exit_release_regions; } hw = ieee80211_alloc_hw(sizeof(struct rt2x00_dev), ops->hw); if (!hw) { ERROR_PROBE("Failed to allocate hardware.\n"); retval = -ENOMEM; - goto exit_disable_device; + goto exit_release_regions; } pci_set_drvdata(pci_dev, hw); @@ -300,13 +300,12 @@ exit_free_reg: exit_free_device: ieee80211_free_hw(hw); -exit_disable_device: - if (retval != -EBUSY) - pci_disable_device(pci_dev); - exit_release_regions: pci_release_regions(pci_dev); +exit_disable_device: + pci_disable_device(pci_dev); + pci_set_drvdata(pci_dev, NULL); return retval; diff --git a/drivers/net/wireless/rtl818x/rtl8180_dev.c b/drivers/net/wireless/rtl818x/rtl8180_dev.c index 1d8178563d76..b50c39aaec05 100644 --- a/drivers/net/wireless/rtl818x/rtl8180_dev.c +++ b/drivers/net/wireless/rtl818x/rtl8180_dev.c @@ -695,6 +695,8 @@ static void rtl8180_beacon_work(struct work_struct *work) /* grab a fresh beacon */ skb = ieee80211_beacon_get(dev, vif); + if (!skb) + goto resched; /* * update beacon timestamp w/ TSF value diff --git a/drivers/net/wireless/wl12xx/wl1271_spi.c b/drivers/net/wireless/wl12xx/wl1271_spi.c index 96d25fb50495..4cb99c541e2a 100644 --- a/drivers/net/wireless/wl12xx/wl1271_spi.c +++ b/drivers/net/wireless/wl12xx/wl1271_spi.c @@ -160,9 +160,8 @@ static void wl1271_spi_init(struct wl1271 *wl) spi_message_add_tail(&t, &m); spi_sync(wl_to_spi(wl), &m); - kfree(cmd); - wl1271_dump(DEBUG_SPI, "spi init -> ", cmd, WSPI_INIT_CMD_LEN); + kfree(cmd); } #define WL1271_BUSY_WORD_TIMEOUT 1000 diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 8b28962e737e..4568b938ca35 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -132,7 +132,7 @@ struct hci_dev { struct inquiry_cache inq_cache; struct hci_conn_hash conn_hash; - struct bdaddr_list blacklist; + struct list_head blacklist; struct hci_dev_stats stat; diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 8303f1c9ef54..c52f091ee6de 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -924,7 +924,7 @@ int hci_register_dev(struct hci_dev *hdev) hci_conn_hash_init(hdev); - INIT_LIST_HEAD(&hdev->blacklist.list); + INIT_LIST_HEAD(&hdev->blacklist); memset(&hdev->stat, 0, sizeof(struct hci_dev_stats)); diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index 4f170a595934..83acd164d39e 100644 --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -168,9 +168,8 @@ static int hci_sock_release(struct socket *sock) struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr) { struct list_head *p; - struct bdaddr_list *blacklist = &hdev->blacklist; - list_for_each(p, &blacklist->list) { + list_for_each(p, &hdev->blacklist) { struct bdaddr_list *b; b = list_entry(p, struct bdaddr_list, list); @@ -202,7 +201,7 @@ static int hci_blacklist_add(struct hci_dev *hdev, void __user *arg) bacpy(&entry->bdaddr, &bdaddr); - list_add(&entry->list, &hdev->blacklist.list); + list_add(&entry->list, &hdev->blacklist); return 0; } @@ -210,9 +209,8 @@ static int hci_blacklist_add(struct hci_dev *hdev, void __user *arg) int hci_blacklist_clear(struct hci_dev *hdev) { struct list_head *p, *n; - struct bdaddr_list *blacklist = &hdev->blacklist; - list_for_each_safe(p, n, &blacklist->list) { + list_for_each_safe(p, n, &hdev->blacklist) { struct bdaddr_list *b; b = list_entry(p, struct bdaddr_list, list); diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c index ce44c47eeac1..8fb967beee80 100644 --- a/net/bluetooth/hci_sysfs.c +++ b/net/bluetooth/hci_sysfs.c @@ -439,12 +439,11 @@ static const struct file_operations inquiry_cache_fops = { static int blacklist_show(struct seq_file *f, void *p) { struct hci_dev *hdev = f->private; - struct bdaddr_list *blacklist = &hdev->blacklist; struct list_head *l; hci_dev_lock_bh(hdev); - list_for_each(l, &blacklist->list) { + list_for_each(l, &hdev->blacklist) { struct bdaddr_list *b; bdaddr_t bdaddr; diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c index 9ba1e8eee37c..3e3cd9d4e52c 100644 --- a/net/bluetooth/l2cap.c +++ b/net/bluetooth/l2cap.c @@ -2527,6 +2527,10 @@ done: if (pi->imtu != L2CAP_DEFAULT_MTU) l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, pi->imtu); + if (!(pi->conn->feat_mask & L2CAP_FEAT_ERTM) && + !(pi->conn->feat_mask & L2CAP_FEAT_STREAMING)) + break; + rfc.mode = L2CAP_MODE_BASIC; rfc.txwin_size = 0; rfc.max_transmit = 0; @@ -2534,6 +2538,8 @@ done: rfc.monitor_timeout = 0; rfc.max_pdu_size = 0; + l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC, sizeof(rfc), + (unsigned long) &rfc); break; case L2CAP_MODE_ERTM: @@ -2546,6 +2552,9 @@ done: if (L2CAP_DEFAULT_MAX_PDU_SIZE > pi->conn->mtu - 10) rfc.max_pdu_size = cpu_to_le16(pi->conn->mtu - 10); + l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC, sizeof(rfc), + (unsigned long) &rfc); + if (!(pi->conn->feat_mask & L2CAP_FEAT_FCS)) break; @@ -2566,6 +2575,9 @@ done: if (L2CAP_DEFAULT_MAX_PDU_SIZE > pi->conn->mtu - 10) rfc.max_pdu_size = cpu_to_le16(pi->conn->mtu - 10); + l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC, sizeof(rfc), + (unsigned long) &rfc); + if (!(pi->conn->feat_mask & L2CAP_FEAT_FCS)) break; @@ -2577,9 +2589,6 @@ done: break; } - l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC, sizeof(rfc), - (unsigned long) &rfc); - /* FIXME: Need actual value of the flush timeout */ //if (flush_to != L2CAP_DEFAULT_FLUSH_TO) // l2cap_add_conf_opt(&ptr, L2CAP_CONF_FLUSH_TO, 2, pi->flush_to); @@ -3339,6 +3348,15 @@ static inline int l2cap_information_rsp(struct l2cap_conn *conn, struct l2cap_cm del_timer(&conn->info_timer); + if (result != L2CAP_IR_SUCCESS) { + conn->info_state |= L2CAP_INFO_FEAT_MASK_REQ_DONE; + conn->info_ident = 0; + + l2cap_conn_start(conn); + + return 0; + } + if (type == L2CAP_IT_FEAT_MASK) { conn->feat_mask = get_unaligned_le32(rsp->data); diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c index 026205c18b78..befc3a52aa04 100644 --- a/net/bluetooth/rfcomm/tty.c +++ b/net/bluetooth/rfcomm/tty.c @@ -1183,7 +1183,7 @@ int __init rfcomm_init_ttys(void) return 0; } -void __exit rfcomm_cleanup_ttys(void) +void rfcomm_cleanup_ttys(void) { tty_unregister_driver(rfcomm_tty_driver); put_tty_driver(rfcomm_tty_driver); diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 7cc4f913a431..798a91b100cc 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -685,10 +685,12 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) return 0; +#ifdef CONFIG_INET fail_ifa: pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY, &local->network_latency_notifier); rtnl_lock(); +#endif fail_pm_qos: ieee80211_led_exit(local); ieee80211_remove_interfaces(local); diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index 41f20fb7e670..872d7b6ef6b3 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -400,19 +400,7 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata, else __set_bit(SCAN_SW_SCANNING, &local->scanning); - /* - * Kicking off the scan need not be protected, - * only the scan variable stuff, since now - * local->scan_req is assigned and other callers - * will abort their scan attempts. - * - * This avoids too many locking dependencies - * so that the scan completed calls have more - * locking freedom. - */ - ieee80211_recalc_idle(local); - mutex_unlock(&local->scan_mtx); if (local->ops->hw_scan) { WARN_ON(!ieee80211_prep_hw_scan(local)); @@ -420,8 +408,6 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata, } else rc = ieee80211_start_sw_scan(local); - mutex_lock(&local->scan_mtx); - if (rc) { kfree(local->hw_scan_req); local->hw_scan_req = NULL; |