1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
3  * Copyright (C) 2005-2014, 2018-2020 Intel Corporation
9 #include "iwl-drv.h"
10 #include "iwl-modparams.h"
11 #include "iwl-eeprom-parse.h"
29 /* corresponding link offsets in EEPROM */
75 #define EEPROM_RF_CFG_TYPE_MSK(x)   (x & 0x3)         /* bits 0-1   */
76 #define EEPROM_RF_CFG_STEP_MSK(x)   ((x >> 2)  & 0x3) /* bits 2-3   */
77 #define EEPROM_RF_CFG_DASH_MSK(x)   ((x >> 4)  & 0x3) /* bits 4-5   */
78 #define EEPROM_RF_CFG_PNUM_MSK(x)   ((x >> 6)  & 0x3) /* bits 6-7   */
79 #define EEPROM_RF_CFG_TX_ANT_MSK(x) ((x >> 8)  & 0xF) /* bits 8-11  */
80 #define EEPROM_RF_CFG_RX_ANT_MSK(x) ((x >> 12) & 0xF) /* bits 12-15 */
85  * These are the channel numbers from each band in the order
86  * that they are stored in the EEPROM band information. Note
88  * there are even special "ht40 bands" in the EEPROM.
94 static const u8 iwl_eeprom_band_2[] = {	/* 4915-5080MHz */
98 static const u8 iwl_eeprom_band_3[] = {	/* 5170-5320MHz */
102 static const u8 iwl_eeprom_band_4[] = {	/* 5500-5700MHz */
106 static const u8 iwl_eeprom_band_5[] = {	/* 5725-5825MHz */
145 #define N_RATES_52	(N_RATES_24 - RATES_52_OFFS)
225 		return -ENODATA;  in iwl_eeprom_read_calib()
226 	data->calib_version = hdr->version;  in iwl_eeprom_read_calib()
227 	data->calib_voltage = hdr->voltage;  in iwl_eeprom_read_calib()
233  * enum iwl_eeprom_channel_flags - channel flags in EEPROM
251  * struct iwl_eeprom_channel - EEPROM channel data
253  * @max_power_avg: max power (in dBm) on this channel, at most 31 dBm
276  * @chain_a_max: chain a max power in 1/2 dBm
277  * @chain_b_max: chain b max power in 1/2 dBm
278  * @chain_c_max: chain c max power in 1/2 dBm
279  * @delta_20_in_40: 20-in-40 deltas (hi/lo)
280  * @mimo2_max: mimo2 max power in 1/2 dBm
281  * @mimo3_max: mimo3 max power in 1/2 dBm
284  * in an EEPROM image.
303 	if (data->valid_tx_ant & ANT_A && txp->chain_a_max > result)  in iwl_get_max_txpwr_half_dbm()
304 		result = txp->chain_a_max;  in iwl_get_max_txpwr_half_dbm()
306 	if (data->valid_tx_ant & ANT_B && txp->chain_b_max > result)  in iwl_get_max_txpwr_half_dbm()
307 		result = txp->chain_b_max;  in iwl_get_max_txpwr_half_dbm()
309 	if (data->valid_tx_ant & ANT_C && txp->chain_c_max > result)  in iwl_get_max_txpwr_half_dbm()
310 		result = txp->chain_c_max;  in iwl_get_max_txpwr_half_dbm()
312 	if ((data->valid_tx_ant == ANT_AB ||  in iwl_get_max_txpwr_half_dbm()
313 	     data->valid_tx_ant == ANT_BC ||  in iwl_get_max_txpwr_half_dbm()
314 	     data->valid_tx_ant == ANT_AC) && txp->mimo2_max > result)  in iwl_get_max_txpwr_half_dbm()
315 		result = txp->mimo2_max;  in iwl_get_max_txpwr_half_dbm()
317 	if (data->valid_tx_ant == ANT_ABC && txp->mimo3_max > result)  in iwl_get_max_txpwr_half_dbm()
318 		result = txp->mimo3_max;  in iwl_get_max_txpwr_half_dbm()
328 	((txp->flags & IWL_EEPROM_ENH_TXP_FL_##x) ? # x " " : "")
336 	enum nl80211_band band;  in iwl_eeprom_enh_txp_read_element()  local
338 	band = txp->flags & IWL_EEPROM_ENH_TXP_FL_BAND_52G ?  in iwl_eeprom_enh_txp_read_element()
342 		struct ieee80211_channel *chan = &data->channels[ch_idx];  in iwl_eeprom_enh_txp_read_element()
345 		if (txp->channel != 0 && chan->hw_value != txp->channel)  in iwl_eeprom_enh_txp_read_element()
348 		/* update matching band only */  in iwl_eeprom_enh_txp_read_element()
349 		if (band != chan->band)  in iwl_eeprom_enh_txp_read_element()
352 		if (chan->max_power < max_txpower_avg &&  in iwl_eeprom_enh_txp_read_element()
353 		    !(txp->flags & IWL_EEPROM_ENH_TXP_FL_40MHZ))  in iwl_eeprom_enh_txp_read_element()
354 			chan->max_power = max_txpower_avg;  in iwl_eeprom_enh_txp_read_element()
370 	/* the length is in 16-bit words, but we want entries */  in iwl_eeprom_enhanced_txpower()
381 		if (!(txp->flags & IWL_EEPROM_ENH_TXP_FL_VALID))  in iwl_eeprom_enhanced_txpower()
385 				 (txp->channel && (txp->flags &  in iwl_eeprom_enhanced_txpower()
387 					"Common " : (txp->channel) ?  in iwl_eeprom_enhanced_txpower()
389 				 (txp->channel),  in iwl_eeprom_enhanced_txpower()
398 				 txp->flags);  in iwl_eeprom_enhanced_txpower()
401 				 txp->chain_a_max, txp->chain_b_max,  in iwl_eeprom_enhanced_txpower()
402 				 txp->chain_c_max);  in iwl_eeprom_enhanced_txpower()
405 				 txp->mimo2_max, txp->mimo3_max,  in iwl_eeprom_enhanced_txpower()
406 				 ((txp->delta_20_in_40 & 0xf0) >> 4),  in iwl_eeprom_enhanced_txpower()
407 				 (txp->delta_20_in_40 & 0x0f));  in iwl_eeprom_enhanced_txpower()
414 		if (max_txp_avg_halfdbm > data->max_tx_pwr_half_dbm)  in iwl_eeprom_enhanced_txpower()
415 			data->max_tx_pwr_half_dbm = max_txp_avg_halfdbm;  in iwl_eeprom_enhanced_txpower()
425 	u32 offset = cfg->eeprom_params->regulatory_bands[eeprom_band - 1];  in iwl_init_band_reference()
432 	case 1:		/* 2.4GHz band */  in iwl_init_band_reference()
436 	case 2:		/* 4.9GHz band */  in iwl_init_band_reference()
440 	case 3:		/* 5.2GHz band */  in iwl_init_band_reference()
444 	case 4:		/* 5.5GHz band */  in iwl_init_band_reference()
448 	case 5:		/* 5.7GHz band */  in iwl_init_band_reference()
468 	((eeprom_ch->flags & EEPROM_CHANNEL_##x) ? # x " " : "")
472 				   enum nl80211_band band, u16 channel,  in iwl_mod_ht40_chan_info()  argument
480 		if (data->channels[i].band != band)  in iwl_mod_ht40_chan_info()
482 		if (data->channels[i].hw_value != channel)  in iwl_mod_ht40_chan_info()
484 		chan = &data->channels[i];  in iwl_mod_ht40_chan_info()
492 			 "HT40 Ch. %d [%sGHz] %s%s%s%s%s(0x%02x %ddBm): Ad-Hoc %ssupported\n",  in iwl_mod_ht40_chan_info()
494 			 band == NL80211_BAND_5GHZ ? "5.2" : "2.4",  in iwl_mod_ht40_chan_info()
500 			 eeprom_ch->flags,  in iwl_mod_ht40_chan_info()
501 			 eeprom_ch->max_power_avg,  in iwl_mod_ht40_chan_info()
502 			 ((eeprom_ch->flags & EEPROM_CHANNEL_IBSS) &&  in iwl_mod_ht40_chan_info()
503 			  !(eeprom_ch->flags & EEPROM_CHANNEL_RADAR)) ? ""  in iwl_mod_ht40_chan_info()
506 	if (eeprom_ch->flags & EEPROM_CHANNEL_VALID)  in iwl_mod_ht40_chan_info()
507 		chan->flags &= ~clear_ht40_extension_channel;  in iwl_mod_ht40_chan_info()
517 	int band, ch_idx;  in iwl_init_channel_map()  local
526 	for (band = 1; band <= 5; band++) {  in iwl_init_channel_map()
529 		iwl_init_band_reference(cfg, eeprom, eeprom_size, band,  in iwl_init_channel_map()
533 		/* Loop through each band adding each of the channels */  in iwl_init_channel_map()
539 			if (!(eeprom_ch->flags & EEPROM_CHANNEL_VALID)) {  in iwl_init_channel_map()
541 						 "Ch. %d Flags %x [%sGHz] - No traffic\n",  in iwl_init_channel_map()
544 						 (band != 1) ? "5.2" : "2.4");  in iwl_init_channel_map()
548 			channel = &data->channels[n_channels];  in iwl_init_channel_map()
551 			channel->hw_value = eeprom_ch_array[ch_idx];  in iwl_init_channel_map()
552 			channel->band = (band == 1) ? NL80211_BAND_2GHZ  in iwl_init_channel_map()
554 			channel->center_freq =  in iwl_init_channel_map()
556 					channel->hw_value, channel->band);  in iwl_init_channel_map()
558 			/* set no-HT40, will enable as appropriate later */  in iwl_init_channel_map()
559 			channel->flags = IEEE80211_CHAN_NO_HT40;  in iwl_init_channel_map()
561 			if (!(eeprom_ch->flags & EEPROM_CHANNEL_IBSS))  in iwl_init_channel_map()
562 				channel->flags |= IEEE80211_CHAN_NO_IR;  in iwl_init_channel_map()
564 			if (!(eeprom_ch->flags & EEPROM_CHANNEL_ACTIVE))  in iwl_init_channel_map()
565 				channel->flags |= IEEE80211_CHAN_NO_IR;  in iwl_init_channel_map()
567 			if (eeprom_ch->flags & EEPROM_CHANNEL_RADAR)  in iwl_init_channel_map()
568 				channel->flags |= IEEE80211_CHAN_RADAR;  in iwl_init_channel_map()
570 			/* Initialize regulatory-based run-time data */  in iwl_init_channel_map()
571 			channel->max_power =  in iwl_init_channel_map()
574 					 "Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x %ddBm): Ad-Hoc %ssupported\n",  in iwl_init_channel_map()
575 					 channel->hw_value,  in iwl_init_channel_map()
576 					 (band != 1) ? "5.2" : "2.4",  in iwl_init_channel_map()
593 	if (cfg->eeprom_params->enhanced_txpower) {  in iwl_init_channel_map()
606 		data->max_tx_pwr_half_dbm = -128;  in iwl_init_channel_map()
609 			data->max_tx_pwr_half_dbm =  in iwl_init_channel_map()
610 				max_t(s8, data->max_tx_pwr_half_dbm,  in iwl_init_channel_map()
611 				      data->channels[i].max_power * 2);  in iwl_init_channel_map()
615 	if (cfg->eeprom_params->regulatory_bands[5] ==  in iwl_init_channel_map()
617 	    cfg->eeprom_params->regulatory_bands[6] ==  in iwl_init_channel_map()
622 	for (band = 6; band <= 7; band++) {  in iwl_init_channel_map()
625 		iwl_init_band_reference(cfg, eeprom, eeprom_size, band,  in iwl_init_channel_map()
629 		/* EEPROM band 6 is 2.4, band 7 is 5 GHz */  in iwl_init_channel_map()
630 		ieeeband = (band == 6) ? NL80211_BAND_2GHZ  in iwl_init_channel_map()
633 		/* Loop through each band adding each of the channels */  in iwl_init_channel_map()
655 			    int n_channels, enum nl80211_band band)  in iwl_init_sband_channels()  argument
657 	struct ieee80211_channel *chan = &data->channels[0];  in iwl_init_sband_channels()
660 	while (idx < n_channels && chan->band != band)  in iwl_init_sband_channels()
661 		chan = &data->channels[++idx];  in iwl_init_sband_channels()
663 	sband->channels = &data->channels[idx];  in iwl_init_sband_channels()
665 	while (idx < n_channels && chan->band == band) {  in iwl_init_sband_channels()
666 		chan = &data->channels[++idx];  in iwl_init_sband_channels()
670 	sband->n_channels = n;  in iwl_init_sband_channels()
681 			  enum nl80211_band band,  in iwl_init_ht_hw_capab()  argument
684 	const struct iwl_cfg *cfg = trans->cfg;  in iwl_init_ht_hw_capab()
688 	if (cfg->rx_with_siso_diversity)  in iwl_init_ht_hw_capab()
693 	if (!(data->sku_cap_11n_enable) ||  in iwl_init_ht_hw_capab()
695 	    !cfg->ht_params) {  in iwl_init_ht_hw_capab()
696 		ht_info->ht_supported = false;  in iwl_init_ht_hw_capab()
700 	if (data->sku_cap_mimo_disabled)  in iwl_init_ht_hw_capab()
703 	ht_info->ht_supported = true;  in iwl_init_ht_hw_capab()
704 	ht_info->cap = IEEE80211_HT_CAP_DSSSCCK40;  in iwl_init_ht_hw_capab()
706 	if (cfg->ht_params->stbc) {  in iwl_init_ht_hw_capab()
707 		ht_info->cap |= (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT);  in iwl_init_ht_hw_capab()
710 			ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;  in iwl_init_ht_hw_capab()
713 	if (cfg->ht_params->ldpc)  in iwl_init_ht_hw_capab()
714 		ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;  in iwl_init_ht_hw_capab()
716 	if (trans->trans_cfg->mq_rx_supported ||  in iwl_init_ht_hw_capab()
718 		ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU;  in iwl_init_ht_hw_capab()
720 	ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;  in iwl_init_ht_hw_capab()
721 	ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_4;  in iwl_init_ht_hw_capab()
723 	ht_info->mcs.rx_mask[0] = 0xFF;  in iwl_init_ht_hw_capab()
725 		ht_info->mcs.rx_mask[1] = 0xFF;  in iwl_init_ht_hw_capab()
727 		ht_info->mcs.rx_mask[2] = 0xFF;  in iwl_init_ht_hw_capab()
729 	if (cfg->ht_params->ht_greenfield_support)  in iwl_init_ht_hw_capab()
730 		ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;  in iwl_init_ht_hw_capab()
731 	ht_info->cap |= IEEE80211_HT_CAP_SGI_20;  in iwl_init_ht_hw_capab()
735 	if (cfg->ht_params->ht40_bands & BIT(band)) {  in iwl_init_ht_hw_capab()
736 		ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;  in iwl_init_ht_hw_capab()
737 		ht_info->cap |= IEEE80211_HT_CAP_SGI_40;  in iwl_init_ht_hw_capab()
744 	ht_info->mcs.rx_highest = cpu_to_le16(max_bit_rate);  in iwl_init_ht_hw_capab()
747 	ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;  in iwl_init_ht_hw_capab()
749 		ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;  in iwl_init_ht_hw_capab()
750 		ht_info->mcs.tx_params |= ((tx_chains - 1) <<  in iwl_init_ht_hw_capab()
760 	struct device *dev = trans->dev;  in iwl_init_sbands()
766 	sband = &data->bands[NL80211_BAND_2GHZ];  in iwl_init_sbands()
767 	sband->band = NL80211_BAND_2GHZ;  in iwl_init_sbands()
768 	sband->bitrates = &iwl_cfg80211_rates[RATES_24_OFFS];  in iwl_init_sbands()
769 	sband->n_bitrates = N_RATES_24;  in iwl_init_sbands()
772 	iwl_init_ht_hw_capab(trans, data, &sband->ht_cap, NL80211_BAND_2GHZ,  in iwl_init_sbands()
773 			     data->valid_tx_ant, data->valid_rx_ant);  in iwl_init_sbands()
775 	sband = &data->bands[NL80211_BAND_5GHZ];  in iwl_init_sbands()
776 	sband->band = NL80211_BAND_5GHZ;  in iwl_init_sbands()
777 	sband->bitrates = &iwl_cfg80211_rates[RATES_52_OFFS];  in iwl_init_sbands()
778 	sband->n_bitrates = N_RATES_52;  in iwl_init_sbands()
781 	iwl_init_ht_hw_capab(trans, data, &sband->ht_cap, NL80211_BAND_5GHZ,  in iwl_init_sbands()
782 			     data->valid_tx_ant, data->valid_rx_ant);  in iwl_init_sbands()
796 	struct device *dev = trans->dev;  in iwl_parse_eeprom_data()
800 	if (WARN_ON(!cfg || !cfg->eeprom_params))  in iwl_parse_eeprom_data()
812 	memcpy(data->hw_addr, tmp, ETH_ALEN);  in iwl_parse_eeprom_data()
813 	data->n_hw_addrs = iwl_eeprom_query16(eeprom, eeprom_size,  in iwl_parse_eeprom_data()
822 	memcpy(data->xtal_calib, tmp, sizeof(data->xtal_calib));  in iwl_parse_eeprom_data()
828 	data->raw_temperature = *(__le16 *)tmp;  in iwl_parse_eeprom_data()
834 	data->kelvin_temperature = *(__le16 *)tmp;  in iwl_parse_eeprom_data()
835 	data->kelvin_voltage = *((__le16 *)tmp + 1);  in iwl_parse_eeprom_data()
839 	data->radio_cfg_dash = EEPROM_RF_CFG_DASH_MSK(radio_cfg);  in iwl_parse_eeprom_data()
840 	data->radio_cfg_pnum = EEPROM_RF_CFG_PNUM_MSK(radio_cfg);  in iwl_parse_eeprom_data()
841 	data->radio_cfg_step = EEPROM_RF_CFG_STEP_MSK(radio_cfg);  in iwl_parse_eeprom_data()
842 	data->radio_cfg_type = EEPROM_RF_CFG_TYPE_MSK(radio_cfg);  in iwl_parse_eeprom_data()
843 	data->valid_rx_ant = EEPROM_RF_CFG_RX_ANT_MSK(radio_cfg);  in iwl_parse_eeprom_data()
844 	data->valid_tx_ant = EEPROM_RF_CFG_TX_ANT_MSK(radio_cfg);  in iwl_parse_eeprom_data()
848 	data->sku_cap_11n_enable = sku & EEPROM_SKU_CAP_11N_ENABLE;  in iwl_parse_eeprom_data()
849 	data->sku_cap_amt_enable = sku & EEPROM_SKU_CAP_AMT_ENABLE;  in iwl_parse_eeprom_data()
850 	data->sku_cap_band_24ghz_enable = sku & EEPROM_SKU_CAP_BAND_24GHZ;  in iwl_parse_eeprom_data()
851 	data->sku_cap_band_52ghz_enable = sku & EEPROM_SKU_CAP_BAND_52GHZ;  in iwl_parse_eeprom_data()
852 	data->sku_cap_ipan_enable = sku & EEPROM_SKU_CAP_IPAN_ENABLE;  in iwl_parse_eeprom_data()
854 		data->sku_cap_11n_enable = false;  in iwl_parse_eeprom_data()
856 	data->nvm_version = iwl_eeprom_query16(eeprom, eeprom_size,  in iwl_parse_eeprom_data()
860 	if (cfg->valid_tx_ant)  in iwl_parse_eeprom_data()
861 		data->valid_tx_ant = cfg->valid_tx_ant;  in iwl_parse_eeprom_data()
862 	if (cfg->valid_rx_ant)  in iwl_parse_eeprom_data()
863 		data->valid_rx_ant = cfg->valid_rx_ant;  in iwl_parse_eeprom_data()
865 	if (!data->valid_tx_ant || !data->valid_rx_ant) {  in iwl_parse_eeprom_data()
867 			    data->valid_tx_ant, data->valid_rx_ant);  in iwl_parse_eeprom_data()