#include "iwl-agn.h"
#include "iwl-io.h"
-/************************** EEPROM BANDS ****************************
- *
- * The iwl_eeprom_band definitions below provide the mapping from the
- * EEPROM contents to the specific channel number supported for each
- * band.
- *
- * For example, iwl_priv->eeprom.band_3_channels[4] from the band_3
- * definition below maps to physical channel 42 in the 5.2GHz spectrum.
- * The specific geography and calibration information for that channel
- * is contained in the eeprom map itself.
- *
- * During init, we copy the eeprom information and channel map
- * information into priv->channel_info_24/52 and priv->channel_map_24/52
- *
- * channel_map_24/52 provides the index in the channel_info array for a
- * given channel. We have to have two separate maps as there is channel
- * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and
- * band_2
- *
- * A value of 0xff stored in the channel_map indicates that the channel
- * is not supported by the hardware at all.
- *
- * A value of 0xfe in the channel_map indicates that the channel is not
- * valid for Tx with the current hardware. This means that
- * while the system can tune and receive on a given channel, it may not
- * be able to associate or transmit any frames on that
- * channel. There is no corresponding channel information for that
- * entry.
- *
- *********************************************************************/
-
-/**
- * struct iwl_txpwr_section: eeprom section information
- * @offset: indirect address into eeprom image
- * @count: number of "struct iwl_eeprom_enhanced_txpwr" in this section
- * @band: band type for the section
- * @is_common - true: common section, false: channel section
- * @is_cck - true: cck section, false: not cck section
- * @is_ht_40 - true: all channel in the section are HT40 channel,
- * false: legacy or HT 20 MHz
- * ignore if it is common section
- * @iwl_eeprom_section_channel: channel array in the section,
- * ignore if common section
- */
-struct iwl_txpwr_section {
- u32 offset;
- u8 count;
- enum ieee80211_band band;
- bool is_common;
- bool is_cck;
- bool is_ht40;
- u8 iwl_eeprom_section_channel[EEPROM_MAX_TXPOWER_SECTION_ELEMENTS];
-};
-
-/**
- * section 1 - 3 are regulatory tx power apply to all channels based on
- * modulation: CCK, OFDM
- * Band: 2.4GHz, 5.2GHz
- * section 4 - 10 are regulatory tx power apply to specified channels
- * For example:
- * 1L - Channel 1 Legacy
- * 1HT - Channel 1 HT
- * (1,+1) - Channel 1 HT40 "_above_"
- *
- * Section 1: all CCK channels
- * Section 2: all 2.4 GHz OFDM (Legacy, HT and HT40) channels
- * Section 3: all 5.2 GHz OFDM (Legacy, HT and HT40) channels
- * Section 4: 2.4 GHz 20MHz channels: 1L, 1HT, 2L, 2HT, 10L, 10HT, 11L, 11HT
- * Section 5: 2.4 GHz 40MHz channels: (1,+1) (2,+1) (6,+1) (7,+1) (9,+1)
- * Section 6: 5.2 GHz 20MHz channels: 36L, 64L, 100L, 36HT, 64HT, 100HT
- * Section 7: 5.2 GHz 40MHz channels: (36,+1) (60,+1) (100,+1)
- * Section 8: 2.4 GHz channel: 13L, 13HT
- * Section 9: 2.4 GHz channel: 140L, 140HT
- * Section 10: 2.4 GHz 40MHz channels: (132,+1) (44,+1)
- *
- */
-static const struct iwl_txpwr_section enhinfo[] = {
- { EEPROM_LB_CCK_20_COMMON, 1, IEEE80211_BAND_2GHZ, true, true, false },
- { EEPROM_LB_OFDM_COMMON, 3, IEEE80211_BAND_2GHZ, true, false, false },
- { EEPROM_HB_OFDM_COMMON, 3, IEEE80211_BAND_5GHZ, true, false, false },
- { EEPROM_LB_OFDM_20_BAND, 8, IEEE80211_BAND_2GHZ,
- false, false, false,
- {1, 1, 2, 2, 10, 10, 11, 11 } },
- { EEPROM_LB_OFDM_HT40_BAND, 5, IEEE80211_BAND_2GHZ,
- false, false, true,
- { 1, 2, 6, 7, 9 } },
- { EEPROM_HB_OFDM_20_BAND, 6, IEEE80211_BAND_5GHZ,
- false, false, false,
- { 36, 64, 100, 36, 64, 100 } },
- { EEPROM_HB_OFDM_HT40_BAND, 3, IEEE80211_BAND_5GHZ,
- false, false, true,
- { 36, 60, 100 } },
- { EEPROM_LB_OFDM_20_CHANNEL_13, 2, IEEE80211_BAND_2GHZ,
- false, false, false,
- { 13, 13 } },
- { EEPROM_HB_OFDM_20_CHANNEL_140, 2, IEEE80211_BAND_5GHZ,
- false, false, false,
- { 140, 140 } },
- { EEPROM_HB_OFDM_HT40_BAND_1, 2, IEEE80211_BAND_5GHZ,
- false, false, true,
- { 132, 44 } },
-};
-
/******************************************************************************
*
* EEPROM related functions
}
+int iwl_eeprom_check_sku(struct iwl_priv *priv)
+{
+ u16 eeprom_sku;
+ u16 radio_cfg;
+
+ eeprom_sku = iwl_eeprom_query16(priv, EEPROM_SKU_CAP);
+
+ priv->cfg->sku = ((eeprom_sku & EEPROM_SKU_CAP_BAND_SELECTION) >>
+ EEPROM_SKU_CAP_BAND_POS);
+ if (eeprom_sku & EEPROM_SKU_CAP_11N_ENABLE)
+ priv->cfg->sku |= IWL_SKU_N;
+
+ if (!priv->cfg->sku) {
+ IWL_ERR(priv, "Invalid device sku\n");
+ return -EINVAL;
+ }
+
+ IWL_INFO(priv, "Device SKU: 0X%x\n", priv->cfg->sku);
+
+ if (!priv->cfg->valid_tx_ant && !priv->cfg->valid_rx_ant) {
+ /* not using .cfg overwrite */
+ radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG);
+ priv->cfg->valid_tx_ant = EEPROM_RF_CFG_TX_ANT_MSK(radio_cfg);
+ priv->cfg->valid_rx_ant = EEPROM_RF_CFG_TX_ANT_MSK(radio_cfg);
+ if (!priv->cfg->valid_tx_ant || !priv->cfg->valid_rx_ant) {
+ IWL_ERR(priv, "Invalid chain (0X%x, 0X%x)\n",
+ priv->cfg->valid_tx_ant,
+ priv->cfg->valid_rx_ant);
+ return -EINVAL;
+ }
+ IWL_INFO(priv, "Valid Tx ant: 0X%x, Valid Rx ant: 0X%x\n",
+ priv->cfg->valid_tx_ant, priv->cfg->valid_rx_ant);
+ }
+ /*
+ * for some special cases,
+ * EEPROM did not reflect the correct antenna setting
+ * so overwrite the valid tx/rx antenna from .cfg
+ */
+ return 0;
+}
+
void iwl_eeprom_get_mac(const struct iwl_priv *priv, u8 *mac)
{
const u8 *addr = priv->cfg->ops->lib->eeprom_ops.query_addr(priv,
{
s8 max_txpower_avg = 0; /* (dBm) */
- IWL_DEBUG_INFO(priv, "%d - "
- "chain_a: %d dB chain_b: %d dB "
- "chain_c: %d dB mimo2: %d dB mimo3: %d dB\n",
- element,
- enhanced_txpower[element].chain_a_max >> 1,
- enhanced_txpower[element].chain_b_max >> 1,
- enhanced_txpower[element].chain_c_max >> 1,
- enhanced_txpower[element].mimo2_max >> 1,
- enhanced_txpower[element].mimo3_max >> 1);
/* Take the highest tx power from any valid chains */
if ((priv->cfg->valid_tx_ant & ANT_A) &&
(enhanced_txpower[element].chain_a_max > max_txpower_avg))
return (max_txpower_avg & 0x01) + (max_txpower_avg >> 1);
}
-/**
- * iwl_update_common_txpower: update channel tx power
- * update tx power per band based on EEPROM enhanced tx power info.
- */
-static s8 iwl_update_common_txpower(struct iwl_priv *priv,
- struct iwl_eeprom_enhanced_txpwr *enhanced_txpower,
- int section, int element, s8 *max_txpower_in_half_dbm)
+static void
+iwlcore_eeprom_enh_txp_read_element(struct iwl_priv *priv,
+ struct iwl_eeprom_enhanced_txpwr *txp,
+ s8 max_txpower_avg)
{
- struct iwl_channel_info *ch_info;
- int ch;
- bool is_ht40 = false;
- s8 max_txpower_avg; /* (dBm) */
-
- /* it is common section, contain all type (Legacy, HT and HT40)
- * based on the element in the section to determine
- * is it HT 40 or not
- */
- if (element == EEPROM_TXPOWER_COMMON_HT40_INDEX)
- is_ht40 = true;
- max_txpower_avg =
- iwl_get_max_txpower_avg(priv, enhanced_txpower,
- element, max_txpower_in_half_dbm);
-
- ch_info = priv->channel_info;
-
- for (ch = 0; ch < priv->channel_count; ch++) {
- /* find matching band and update tx power if needed */
- if ((ch_info->band == enhinfo[section].band) &&
- (ch_info->max_power_avg < max_txpower_avg) &&
- (!is_ht40)) {
- /* Update regulatory-based run-time data */
- ch_info->max_power_avg = ch_info->curr_txpow =
- max_txpower_avg;
+ int ch_idx;
+ bool is_ht40 = txp->flags & IWL_EEPROM_ENH_TXP_FL_40MHZ;
+ enum ieee80211_band band;
+
+ band = txp->flags & IWL_EEPROM_ENH_TXP_FL_BAND_52G ?
+ IEEE80211_BAND_5GHZ : IEEE80211_BAND_2GHZ;
+
+ for (ch_idx = 0; ch_idx < priv->channel_count; ch_idx++) {
+ struct iwl_channel_info *ch_info = &priv->channel_info[ch_idx];
+
+ /* update matching channel or from common data only */
+ if (txp->channel != 0 && ch_info->channel != txp->channel)
+ continue;
+
+ /* update matching band only */
+ if (band != ch_info->band)
+ continue;
+
+ if (ch_info->max_power_avg < max_txpower_avg && !is_ht40) {
+ ch_info->max_power_avg = max_txpower_avg;
+ ch_info->curr_txpow = max_txpower_avg;
ch_info->scan_power = max_txpower_avg;
}
- if ((ch_info->band == enhinfo[section].band) && is_ht40 &&
- (ch_info->ht40_max_power_avg < max_txpower_avg)) {
- /* Update regulatory-based run-time data */
+
+ if (is_ht40 && ch_info->ht40_max_power_avg < max_txpower_avg)
ch_info->ht40_max_power_avg = max_txpower_avg;
- }
- ch_info++;
}
- return max_txpower_avg;
}
-/**
- * iwl_update_channel_txpower: update channel tx power
- * update channel tx power based on EEPROM enhanced tx power info.
- */
-static s8 iwl_update_channel_txpower(struct iwl_priv *priv,
- struct iwl_eeprom_enhanced_txpwr *enhanced_txpower,
- int section, int element, s8 *max_txpower_in_half_dbm)
-{
- struct iwl_channel_info *ch_info;
- int ch;
- u8 channel;
- s8 max_txpower_avg; /* (dBm) */
-
- channel = enhinfo[section].iwl_eeprom_section_channel[element];
- max_txpower_avg =
- iwl_get_max_txpower_avg(priv, enhanced_txpower,
- element, max_txpower_in_half_dbm);
-
- ch_info = priv->channel_info;
- for (ch = 0; ch < priv->channel_count; ch++) {
- /* find matching channel and update tx power if needed */
- if (ch_info->channel == channel) {
- if ((ch_info->max_power_avg < max_txpower_avg) &&
- (!enhinfo[section].is_ht40)) {
- /* Update regulatory-based run-time data */
- ch_info->max_power_avg = max_txpower_avg;
- ch_info->curr_txpow = max_txpower_avg;
- ch_info->scan_power = max_txpower_avg;
- }
- if ((enhinfo[section].is_ht40) &&
- (ch_info->ht40_max_power_avg < max_txpower_avg)) {
- /* Update regulatory-based run-time data */
- ch_info->ht40_max_power_avg = max_txpower_avg;
- }
- break;
- }
- ch_info++;
- }
- return max_txpower_avg;
-}
+#define EEPROM_TXP_OFFS (0x00 | INDIRECT_ADDRESS | INDIRECT_TXP_LIMIT)
+#define EEPROM_TXP_ENTRY_LEN sizeof(struct iwl_eeprom_enhanced_txpwr)
+#define EEPROM_TXP_SZ_OFFS (0x00 | INDIRECT_ADDRESS | INDIRECT_TXP_LIMIT_SIZE)
+
+#define TXP_CHECK_AND_PRINT(x) ((txp->flags & IWL_EEPROM_ENH_TXP_FL_##x) \
+ ? # x " " : "")
-/**
- * iwlcore_eeprom_enhanced_txpower: process enhanced tx power info
- */
void iwlcore_eeprom_enhanced_txpower(struct iwl_priv *priv)
{
- int eeprom_section_count = 0;
- int section, element;
- struct iwl_eeprom_enhanced_txpwr *enhanced_txpower;
- u32 offset;
- s8 max_txpower_avg; /* (dBm) */
- s8 max_txpower_in_half_dbm; /* (half-dBm) */
-
- /* Loop through all the sections
- * adjust bands and channel's max tx power
- * Set the tx_power_user_lmt to the highest power
- * supported by any channels and chains
- */
- for (section = 0; section < ARRAY_SIZE(enhinfo); section++) {
- eeprom_section_count = enhinfo[section].count;
- offset = enhinfo[section].offset;
- enhanced_txpower = (struct iwl_eeprom_enhanced_txpwr *)
- iwl_eeprom_query_addr(priv, offset);
+ struct iwl_eeprom_enhanced_txpwr *txp_array, *txp;
+ int idx, entries;
+ __le16 *txp_len;
+ s8 max_txp_avg, max_txp_avg_halfdbm;
+
+ BUILD_BUG_ON(sizeof(struct iwl_eeprom_enhanced_txpwr) != 8);
+
+ /* the length is in 16-bit words, but we want entries */
+ txp_len = (__le16 *) iwlagn_eeprom_query_addr(priv, EEPROM_TXP_SZ_OFFS);
+ entries = le16_to_cpup(txp_len) * 2 / EEPROM_TXP_ENTRY_LEN;
+
+ txp_array = (void *) iwlagn_eeprom_query_addr(priv, EEPROM_TXP_OFFS);
+
+ for (idx = 0; idx < entries; idx++) {
+ txp = &txp_array[idx];
+ /* skip invalid entries */
+ if (!(txp->flags & IWL_EEPROM_ENH_TXP_FL_VALID))
+ continue;
+
+ IWL_DEBUG_EEPROM(priv, "%s %d:\t %s%s%s%s%s%s%s%s (0x%02x)\n",
+ (txp->channel && (txp->flags &
+ IWL_EEPROM_ENH_TXP_FL_COMMON_TYPE)) ?
+ "Common " : (txp->channel) ?
+ "Channel" : "Common",
+ (txp->channel),
+ TXP_CHECK_AND_PRINT(VALID),
+ TXP_CHECK_AND_PRINT(BAND_52G),
+ TXP_CHECK_AND_PRINT(OFDM),
+ TXP_CHECK_AND_PRINT(40MHZ),
+ TXP_CHECK_AND_PRINT(HT_AP),
+ TXP_CHECK_AND_PRINT(RES1),
+ TXP_CHECK_AND_PRINT(RES2),
+ TXP_CHECK_AND_PRINT(COMMON_TYPE),
+ txp->flags);
+ IWL_DEBUG_EEPROM(priv, "\t\t chain_A: 0x%02x "
+ "chain_B: 0X%02x chain_C: 0X%02x\n",
+ txp->chain_a_max, txp->chain_b_max,
+ txp->chain_c_max);
+ IWL_DEBUG_EEPROM(priv, "\t\t MIMO2: 0x%02x "
+ "MIMO3: 0x%02x High 20_on_40: 0x%02x "
+ "Low 20_on_40: 0x%02x\n",
+ txp->mimo2_max, txp->mimo3_max,
+ ((txp->delta_20_in_40 & 0xf0) >> 4),
+ (txp->delta_20_in_40 & 0x0f));
+
+ max_txp_avg = iwl_get_max_txpower_avg(priv, txp_array, idx,
+ &max_txp_avg_halfdbm);
/*
- * check for valid entry -
- * different version of EEPROM might contain different set
- * of enhanced tx power table
- * always check for valid entry before process
- * the information
+ * Update the user limit values values to the highest
+ * power supported by any channel
*/
- if (!enhanced_txpower->common || enhanced_txpower->reserved)
- continue;
+ if (max_txp_avg > priv->tx_power_user_lmt)
+ priv->tx_power_user_lmt = max_txp_avg;
+ if (max_txp_avg_halfdbm > priv->tx_power_lmt_in_half_dbm)
+ priv->tx_power_lmt_in_half_dbm = max_txp_avg_halfdbm;
- for (element = 0; element < eeprom_section_count; element++) {
- if (enhinfo[section].is_common)
- max_txpower_avg =
- iwl_update_common_txpower(priv,
- enhanced_txpower, section,
- element,
- &max_txpower_in_half_dbm);
- else
- max_txpower_avg =
- iwl_update_channel_txpower(priv,
- enhanced_txpower, section,
- element,
- &max_txpower_in_half_dbm);
-
- /* Update the tx_power_user_lmt to the highest power
- * supported by any channel */
- if (max_txpower_avg > priv->tx_power_user_lmt)
- priv->tx_power_user_lmt = max_txpower_avg;
-
- /*
- * Update the tx_power_lmt_in_half_dbm to
- * the highest power supported by any channel
- */
- if (max_txpower_in_half_dbm >
- priv->tx_power_lmt_in_half_dbm)
- priv->tx_power_lmt_in_half_dbm =
- max_txpower_in_half_dbm;
- }
+ iwlcore_eeprom_enh_txp_read_element(priv, txp, max_txp_avg);
}
}
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