diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-agn-eeprom.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-agn-eeprom.c | 264 |
1 files changed, 1 insertions, 263 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-eeprom.c b/drivers/net/wireless/iwlwifi/iwl-agn-eeprom.c index cf9194baadac..3ea006d73988 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-eeprom.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-eeprom.c @@ -75,109 +75,6 @@ #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 @@ -344,157 +241,6 @@ static s8 iwl_get_max_txpower_avg(struct iwl_priv *priv, 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) -{ - 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; - 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 */ - 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; -} - -/** - * iwlcore_eeprom_enhanced_txpower: process enhanced tx power info - */ -static void iwlcore_eeprom_enhanced_txpower_old(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); - - /* - * 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 - */ - if (!(enhanced_txpower->flags || enhanced_txpower->channel) || - enhanced_txpower->delta_20_in_40) - continue; - - 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; - } - } -} - static void iwlcore_eeprom_enh_txp_read_element(struct iwl_priv *priv, struct iwl_eeprom_enhanced_txpwr *txp, @@ -533,7 +279,7 @@ iwlcore_eeprom_enh_txp_read_element(struct iwl_priv *priv, #define EEPROM_TXP_ENTRY_LEN sizeof(struct iwl_eeprom_enhanced_txpwr) #define EEPROM_TXP_SZ_OFFS (0x00 | INDIRECT_ADDRESS | INDIRECT_TXP_LIMIT_SIZE) -static void iwlcore_eeprom_enhanced_txpower_new(struct iwl_priv *priv) +void iwlcore_eeprom_enhanced_txpower(struct iwl_priv *priv) { struct iwl_eeprom_enhanced_txpwr *txp_array, *txp; int idx, entries; @@ -569,11 +315,3 @@ static void iwlcore_eeprom_enhanced_txpower_new(struct iwl_priv *priv) iwlcore_eeprom_enh_txp_read_element(priv, txp, max_txp_avg); } } - -void iwlcore_eeprom_enhanced_txpower(struct iwl_priv *priv) -{ - if (priv->cfg->use_new_eeprom_reading) - iwlcore_eeprom_enhanced_txpower_new(priv); - else - iwlcore_eeprom_enhanced_txpower_old(priv); -} |