1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
3  * Copyright (C) 2005-2014, 2018-2019, 2021, 2024 Intel Corporation
9 #include "iwl-drv.h"
10 #include "iwl-debug.h"
11 #include "iwl-io.h"
12 #include "iwl-prph.h"
13 #include "iwl-csr.h"
77 #define EEPROM_RF_CFG_TYPE_MSK(x)   (x & 0x3)         /* bits 0-1   */
78 #define EEPROM_RF_CFG_STEP_MSK(x)   ((x >> 2)  & 0x3) /* bits 2-3   */
79 #define EEPROM_RF_CFG_DASH_MSK(x)   ((x >> 4)  & 0x3) /* bits 4-5   */
80 #define EEPROM_RF_CFG_PNUM_MSK(x)   ((x >> 6)  & 0x3) /* bits 6-7   */
81 #define EEPROM_RF_CFG_TX_ANT_MSK(x) ((x >> 8)  & 0xF) /* bits 8-11  */
82 #define EEPROM_RF_CFG_RX_ANT_MSK(x) ((x >> 12) & 0xF) /* bits 12-15 */
95 static const u8 iwl_eeprom_band_2[] = {	/* 4915-5080MHz */
99 static const u8 iwl_eeprom_band_3[] = {	/* 5170-5320MHz */
103 static const u8 iwl_eeprom_band_4[] = {	/* 5500-5700MHz */
107 static const u8 iwl_eeprom_band_5[] = {	/* 5725-5825MHz */
146 #define N_RATES_52	(N_RATES_24 - RATES_52_OFFS)
226 		return -ENODATA;  in iwl_eeprom_read_calib()
227 	data->calib_version = hdr->version;  in iwl_eeprom_read_calib()
228 	data->calib_voltage = hdr->voltage;  in iwl_eeprom_read_calib()
234  * enum iwl_eeprom_channel_flags - channel flags in EEPROM
252  * struct iwl_eeprom_channel - EEPROM channel data
254  * @max_power_avg: max power (in dBm) on this channel, at most 31 dBm
273  * struct iwl_eeprom_enhanced_txpwr - enhanced regulatory TX power limits
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
300 	s8 result = 0; /* (.5 dBm) */  in iwl_get_max_txpwr_half_dbm()
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 " " : "")
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()
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()
468 	((eeprom_ch->flags & EEPROM_CHANNEL_##x) ? # x " " : "")
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()
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()
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()
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()
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()
635 			/* Set up driver's info for lower half */  in iwl_init_channel_map()
641 			/* Set up driver's info for upper half */  in iwl_init_channel_map()
657  * Driver reads 16-bit value from bits 31-16 of CSR_EEPROM_REG.
687 			IWL_DEBUG_EEPROM(trans->dev,  in iwl_eeprom_acquire_semaphore()
707 	IWL_DEBUG_EEPROM(trans->dev, "EEPROM signature=0x%08x\n", gp);  in iwl_eeprom_verify_signature()
714 			return -ENOENT;  in iwl_eeprom_verify_signature()
721 			return -ENOENT;  in iwl_eeprom_verify_signature()
729 		return -ENOENT;  in iwl_eeprom_verify_signature()
752 	switch (trans->hw_rev & CSR_HW_REV_TYPE_MSK) {  in iwl_nvm_is_otp()
755 		return -EIO;  in iwl_nvm_is_otp()
784 	 * CSR auto clock gate disable bit -  in iwl_init_otp_access()
787 	if (trans->trans_cfg->base_params->shadow_ram_support)  in iwl_init_otp_access()
820 		return -EINVAL;  in iwl_read_otp_word()
878 		return -EINVAL;  in iwl_find_otp_image()
891 		IWL_DEBUG_EEPROM(trans->dev, "OTP blocks %d addr 0x%x\n",  in iwl_find_otp_image()
894 			return -EINVAL;  in iwl_find_otp_image()
908 	} while (usedblocks <= trans->trans_cfg->base_params->max_ll_items);  in iwl_find_otp_image()
911 	IWL_DEBUG_EEPROM(trans->dev, "OTP has no valid blocks\n");  in iwl_find_otp_image()
912 	return -EINVAL;  in iwl_find_otp_image()
916  * iwl_read_eeprom - read EEPROM contents
921  * NOTE:  This routine uses the non-debug IO access functions.
935 		return -EINVAL;  in iwl_read_eeprom()
941 	sz = trans->trans_cfg->base_params->eeprom_size;  in iwl_read_eeprom()
942 	IWL_DEBUG_EEPROM(trans->dev, "NVM size = %d\n", sz);  in iwl_read_eeprom()
946 		return -ENOMEM;  in iwl_read_eeprom()
976 		if (!trans->trans_cfg->base_params->shadow_ram_support) {  in iwl_read_eeprom()
1013 	IWL_DEBUG_EEPROM(trans->dev, "NVM Type: %s\n",  in iwl_read_eeprom()
1034 	struct device *dev = trans->dev;  in iwl_init_sbands()
1040 	sband = &data->bands[NL80211_BAND_2GHZ];  in iwl_init_sbands()
1041 	sband->band = NL80211_BAND_2GHZ;  in iwl_init_sbands()
1042 	sband->bitrates = &iwl_cfg80211_rates[RATES_24_OFFS];  in iwl_init_sbands()
1043 	sband->n_bitrates = N_RATES_24;  in iwl_init_sbands()
1046 	iwl_init_ht_hw_capab(trans, data, &sband->ht_cap, NL80211_BAND_2GHZ,  in iwl_init_sbands()
1047 			     data->valid_tx_ant, data->valid_rx_ant);  in iwl_init_sbands()
1049 	sband = &data->bands[NL80211_BAND_5GHZ];  in iwl_init_sbands()
1050 	sband->band = NL80211_BAND_5GHZ;  in iwl_init_sbands()
1051 	sband->bitrates = &iwl_cfg80211_rates[RATES_52_OFFS];  in iwl_init_sbands()
1052 	sband->n_bitrates = N_RATES_52;  in iwl_init_sbands()
1055 	iwl_init_ht_hw_capab(trans, data, &sband->ht_cap, NL80211_BAND_5GHZ,  in iwl_init_sbands()
1056 			     data->valid_tx_ant, data->valid_rx_ant);  in iwl_init_sbands()
1069 	struct device *dev = trans->dev;  in iwl_parse_eeprom_data()
1073 	if (WARN_ON(!cfg || !cfg->eeprom_params))  in iwl_parse_eeprom_data()
1085 	memcpy(data->hw_addr, tmp, ETH_ALEN);  in iwl_parse_eeprom_data()
1086 	data->n_hw_addrs = iwl_eeprom_query16(eeprom, eeprom_size,  in iwl_parse_eeprom_data()
1095 	memcpy(data->xtal_calib, tmp, sizeof(data->xtal_calib));  in iwl_parse_eeprom_data()
1101 	data->raw_temperature = *(__le16 *)tmp;  in iwl_parse_eeprom_data()
1107 	data->kelvin_temperature = *(__le16 *)tmp;  in iwl_parse_eeprom_data()
1108 	data->kelvin_voltage = *((__le16 *)tmp + 1);  in iwl_parse_eeprom_data()
1112 	data->radio_cfg_dash = EEPROM_RF_CFG_DASH_MSK(radio_cfg);  in iwl_parse_eeprom_data()
1113 	data->radio_cfg_pnum = EEPROM_RF_CFG_PNUM_MSK(radio_cfg);  in iwl_parse_eeprom_data()
1114 	data->radio_cfg_step = EEPROM_RF_CFG_STEP_MSK(radio_cfg);  in iwl_parse_eeprom_data()
1115 	data->radio_cfg_type = EEPROM_RF_CFG_TYPE_MSK(radio_cfg);  in iwl_parse_eeprom_data()
1116 	data->valid_rx_ant = EEPROM_RF_CFG_RX_ANT_MSK(radio_cfg);  in iwl_parse_eeprom_data()
1117 	data->valid_tx_ant = EEPROM_RF_CFG_TX_ANT_MSK(radio_cfg);  in iwl_parse_eeprom_data()
1121 	data->sku_cap_11n_enable = sku & EEPROM_SKU_CAP_11N_ENABLE;  in iwl_parse_eeprom_data()
1122 	data->sku_cap_amt_enable = sku & EEPROM_SKU_CAP_AMT_ENABLE;  in iwl_parse_eeprom_data()
1123 	data->sku_cap_band_24ghz_enable = sku & EEPROM_SKU_CAP_BAND_24GHZ;  in iwl_parse_eeprom_data()
1124 	data->sku_cap_band_52ghz_enable = sku & EEPROM_SKU_CAP_BAND_52GHZ;  in iwl_parse_eeprom_data()
1125 	data->sku_cap_ipan_enable = sku & EEPROM_SKU_CAP_IPAN_ENABLE;  in iwl_parse_eeprom_data()
1127 		data->sku_cap_11n_enable = false;  in iwl_parse_eeprom_data()
1129 	data->nvm_version = iwl_eeprom_query16(eeprom, eeprom_size,  in iwl_parse_eeprom_data()
1133 	if (cfg->valid_tx_ant)  in iwl_parse_eeprom_data()
1134 		data->valid_tx_ant = cfg->valid_tx_ant;  in iwl_parse_eeprom_data()
1135 	if (cfg->valid_rx_ant)  in iwl_parse_eeprom_data()
1136 		data->valid_rx_ant = cfg->valid_rx_ant;  in iwl_parse_eeprom_data()
1138 	if (!data->valid_tx_ant || !data->valid_rx_ant) {  in iwl_parse_eeprom_data()
1140 			    data->valid_tx_ant, data->valid_rx_ant);  in iwl_parse_eeprom_data()