diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/Makefile | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-agn-eeprom.c | 454 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-agn.h | 6 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-eeprom.c | 374 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-eeprom.h | 7 |
5 files changed, 476 insertions, 367 deletions
diff --git a/drivers/net/wireless/iwlwifi/Makefile b/drivers/net/wireless/iwlwifi/Makefile index b4b24b67892c..63edbe2e557f 100644 --- a/drivers/net/wireless/iwlwifi/Makefile +++ b/drivers/net/wireless/iwlwifi/Makefile @@ -12,7 +12,7 @@ obj-$(CONFIG_IWLAGN) += iwlagn.o iwlagn-objs := iwl-agn.o iwl-agn-rs.o iwl-agn-led.o iwl-agn-ict.o iwlagn-objs += iwl-agn-ucode.o iwl-agn-hcmd.o iwl-agn-tx.o iwlagn-objs += iwl-agn-lib.o iwl-agn-rx.o iwl-agn-calib.o -iwlagn-objs += iwl-agn-tt.o iwl-agn-sta.o +iwlagn-objs += iwl-agn-tt.o iwl-agn-sta.o iwl-agn-eeprom.o iwlagn-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-agn-debugfs.o iwlagn-$(CONFIG_IWL4965) += iwl-4965.o diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-eeprom.c b/drivers/net/wireless/iwlwifi/iwl-agn-eeprom.c new file mode 100644 index 000000000000..a650baba0809 --- /dev/null +++ b/drivers/net/wireless/iwlwifi/iwl-agn-eeprom.c @@ -0,0 +1,454 @@ +/****************************************************************************** + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2008 - 2010 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, + * USA + * + * The full GNU General Public License is included in this distribution + * in the file called LICENSE.GPL. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + * BSD LICENSE + * + * Copyright(c) 2005 - 2010 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + *****************************************************************************/ + + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/init.h> + +#include <net/mac80211.h> + +#include "iwl-commands.h" +#include "iwl-dev.h" +#include "iwl-core.h" +#include "iwl-debug.h" +#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 + * +******************************************************************************/ + +/* + * The device's EEPROM semaphore prevents conflicts between driver and uCode + * when accessing the EEPROM; each access is a series of pulses to/from the + * EEPROM chip, not a single event, so even reads could conflict if they + * weren't arbitrated by the semaphore. + */ +int iwlcore_eeprom_acquire_semaphore(struct iwl_priv *priv) +{ + u16 count; + int ret; + + for (count = 0; count < EEPROM_SEM_RETRY_LIMIT; count++) { + /* Request semaphore */ + iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, + CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM); + + /* See if we got it */ + ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG, + CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM, + CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM, + EEPROM_SEM_TIMEOUT); + if (ret >= 0) { + IWL_DEBUG_IO(priv, + "Acquired semaphore after %d tries.\n", + count+1); + return ret; + } + } + + return ret; +} + +void iwlcore_eeprom_release_semaphore(struct iwl_priv *priv) +{ + iwl_clear_bit(priv, CSR_HW_IF_CONFIG_REG, + CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM); + +} + +int iwl_eeprom_check_version(struct iwl_priv *priv) +{ + u16 eeprom_ver; + u16 calib_ver; + + eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION); + calib_ver = priv->cfg->ops->lib->eeprom_ops.calib_version(priv); + + if (eeprom_ver < priv->cfg->eeprom_ver || + calib_ver < priv->cfg->eeprom_calib_ver) + goto err; + + IWL_INFO(priv, "device EEPROM VER=0x%x, CALIB=0x%x\n", + eeprom_ver, calib_ver); + + return 0; +err: + IWL_ERR(priv, "Unsupported (too old) EEPROM VER=0x%x < 0x%x " + "CALIB=0x%x < 0x%x\n", + eeprom_ver, priv->cfg->eeprom_ver, + calib_ver, priv->cfg->eeprom_calib_ver); + return -EINVAL; + +} + +void iwl_eeprom_get_mac(const struct iwl_priv *priv, u8 *mac) +{ + const u8 *addr = priv->cfg->ops->lib->eeprom_ops.query_addr(priv, + EEPROM_MAC_ADDRESS); + memcpy(mac, addr, ETH_ALEN); +} + +/** + * iwl_get_max_txpower_avg - get the highest tx power from all chains. + * find the highest tx power from all chains for the channel + */ +static s8 iwl_get_max_txpower_avg(struct iwl_priv *priv, + struct iwl_eeprom_enhanced_txpwr *enhanced_txpower, + int element, s8 *max_txpower_in_half_dbm) +{ + 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)) + max_txpower_avg = enhanced_txpower[element].chain_a_max; + if ((priv->cfg->valid_tx_ant & ANT_B) && + (enhanced_txpower[element].chain_b_max > max_txpower_avg)) + max_txpower_avg = enhanced_txpower[element].chain_b_max; + if ((priv->cfg->valid_tx_ant & ANT_C) && + (enhanced_txpower[element].chain_c_max > max_txpower_avg)) + max_txpower_avg = enhanced_txpower[element].chain_c_max; + if (((priv->cfg->valid_tx_ant == ANT_AB) | + (priv->cfg->valid_tx_ant == ANT_BC) | + (priv->cfg->valid_tx_ant == ANT_AC)) && + (enhanced_txpower[element].mimo2_max > max_txpower_avg)) + max_txpower_avg = enhanced_txpower[element].mimo2_max; + if ((priv->cfg->valid_tx_ant == ANT_ABC) && + (enhanced_txpower[element].mimo3_max > max_txpower_avg)) + max_txpower_avg = enhanced_txpower[element].mimo3_max; + + /* + * max. tx power in EEPROM is in 1/2 dBm format + * convert from 1/2 dBm to dBm (round-up convert) + * but we also do not want to loss 1/2 dBm resolution which + * will impact performance + */ + *max_txpower_in_half_dbm = 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) +{ + 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 + */ +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); + + /* + * 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->common || enhanced_txpower->reserved) + 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; + } + } +} diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.h b/drivers/net/wireless/iwlwifi/iwl-agn.h index b4deef4e91db..f525d55f2c0f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.h +++ b/drivers/net/wireless/iwlwifi/iwl-agn.h @@ -312,4 +312,10 @@ static inline __le32 iwl_hw_set_rate_n_flags(u8 rate, u32 flags) return cpu_to_le32(flags|(u32)rate); } +/* eeprom */ +void iwlcore_eeprom_enhanced_txpower(struct iwl_priv *priv); +void iwl_eeprom_get_mac(const struct iwl_priv *priv, u8 *mac); +int iwlcore_eeprom_acquire_semaphore(struct iwl_priv *priv); +void iwlcore_eeprom_release_semaphore(struct iwl_priv *priv); + #endif /* __iwl_agn_h__ */ diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.c b/drivers/net/wireless/iwlwifi/iwl-eeprom.c index 66eccb12159d..87cd10ff285d 100644 --- a/drivers/net/wireless/iwlwifi/iwl-eeprom.c +++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.c @@ -136,78 +136,6 @@ static const u8 iwl_eeprom_band_7[] = { /* 5.2 ht40 channel */ 36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157 }; -/** - * 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 @@ -289,46 +217,6 @@ static int iwlcore_get_nvm_type(struct iwl_priv *priv) return nvm_type; } -/* - * The device's EEPROM semaphore prevents conflicts between driver and uCode - * when accessing the EEPROM; each access is a series of pulses to/from the - * EEPROM chip, not a single event, so even reads could conflict if they - * weren't arbitrated by the semaphore. - */ -int iwlcore_eeprom_acquire_semaphore(struct iwl_priv *priv) -{ - u16 count; - int ret; - - for (count = 0; count < EEPROM_SEM_RETRY_LIMIT; count++) { - /* Request semaphore */ - iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM); - - /* See if we got it */ - ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM, - CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM, - EEPROM_SEM_TIMEOUT); - if (ret >= 0) { - IWL_DEBUG_IO(priv, "Acquired semaphore after %d tries.\n", - count+1); - return ret; - } - } - - return ret; -} -EXPORT_SYMBOL(iwlcore_eeprom_acquire_semaphore); - -void iwlcore_eeprom_release_semaphore(struct iwl_priv *priv) -{ - iwl_clear_bit(priv, CSR_HW_IF_CONFIG_REG, - CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM); - -} -EXPORT_SYMBOL(iwlcore_eeprom_release_semaphore); - const u8 *iwlcore_eeprom_query_addr(const struct iwl_priv *priv, size_t offset) { BUG_ON(offset >= priv->cfg->base_params->eeprom_size); @@ -490,6 +378,20 @@ static int iwl_find_otp_image(struct iwl_priv *priv, return -EINVAL; } +const u8 *iwl_eeprom_query_addr(const struct iwl_priv *priv, size_t offset) +{ + return priv->cfg->ops->lib->eeprom_ops.query_addr(priv, offset); +} +EXPORT_SYMBOL(iwl_eeprom_query_addr); + +u16 iwl_eeprom_query16(const struct iwl_priv *priv, size_t offset) +{ + if (!priv->eeprom) + return 0; + return (u16)priv->eeprom[offset] | ((u16)priv->eeprom[offset + 1] << 8); +} +EXPORT_SYMBOL(iwl_eeprom_query16); + /** * iwl_eeprom_init - read EEPROM contents * @@ -616,53 +518,6 @@ void iwl_eeprom_free(struct iwl_priv *priv) } EXPORT_SYMBOL(iwl_eeprom_free); -int iwl_eeprom_check_version(struct iwl_priv *priv) -{ - u16 eeprom_ver; - u16 calib_ver; - - eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION); - calib_ver = priv->cfg->ops->lib->eeprom_ops.calib_version(priv); - - if (eeprom_ver < priv->cfg->eeprom_ver || - calib_ver < priv->cfg->eeprom_calib_ver) - goto err; - - IWL_INFO(priv, "device EEPROM VER=0x%x, CALIB=0x%x\n", - eeprom_ver, calib_ver); - - return 0; -err: - IWL_ERR(priv, "Unsupported (too old) EEPROM VER=0x%x < 0x%x CALIB=0x%x < 0x%x\n", - eeprom_ver, priv->cfg->eeprom_ver, - calib_ver, priv->cfg->eeprom_calib_ver); - return -EINVAL; - -} -EXPORT_SYMBOL(iwl_eeprom_check_version); - -const u8 *iwl_eeprom_query_addr(const struct iwl_priv *priv, size_t offset) -{ - return priv->cfg->ops->lib->eeprom_ops.query_addr(priv, offset); -} -EXPORT_SYMBOL(iwl_eeprom_query_addr); - -u16 iwl_eeprom_query16(const struct iwl_priv *priv, size_t offset) -{ - if (!priv->eeprom) - return 0; - return (u16)priv->eeprom[offset] | ((u16)priv->eeprom[offset + 1] << 8); -} -EXPORT_SYMBOL(iwl_eeprom_query16); - -void iwl_eeprom_get_mac(const struct iwl_priv *priv, u8 *mac) -{ - const u8 *addr = priv->cfg->ops->lib->eeprom_ops.query_addr(priv, - EEPROM_MAC_ADDRESS); - memcpy(mac, addr, ETH_ALEN); -} -EXPORT_SYMBOL(iwl_eeprom_get_mac); - static void iwl_init_band_reference(const struct iwl_priv *priv, int eep_band, int *eeprom_ch_count, const struct iwl_eeprom_channel **eeprom_ch_info, @@ -721,7 +576,6 @@ static void iwl_init_band_reference(const struct iwl_priv *priv, #define CHECK_AND_PRINT(x) ((eeprom_ch->flags & EEPROM_CHANNEL_##x) \ ? # x " " : "") - /** * iwl_mod_ht40_chan_info - Copy ht40 channel info into driver's priv. * @@ -765,205 +619,6 @@ static int iwl_mod_ht40_chan_info(struct iwl_priv *priv, return 0; } -/** - * iwl_get_max_txpower_avg - get the highest tx power from all chains. - * find the highest tx power from all chains for the channel - */ -static s8 iwl_get_max_txpower_avg(struct iwl_priv *priv, - struct iwl_eeprom_enhanced_txpwr *enhanced_txpower, - int element, s8 *max_txpower_in_half_dbm) -{ - 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)) - max_txpower_avg = enhanced_txpower[element].chain_a_max; - if ((priv->cfg->valid_tx_ant & ANT_B) && - (enhanced_txpower[element].chain_b_max > max_txpower_avg)) - max_txpower_avg = enhanced_txpower[element].chain_b_max; - if ((priv->cfg->valid_tx_ant & ANT_C) && - (enhanced_txpower[element].chain_c_max > max_txpower_avg)) - max_txpower_avg = enhanced_txpower[element].chain_c_max; - if (((priv->cfg->valid_tx_ant == ANT_AB) | - (priv->cfg->valid_tx_ant == ANT_BC) | - (priv->cfg->valid_tx_ant == ANT_AC)) && - (enhanced_txpower[element].mimo2_max > max_txpower_avg)) - max_txpower_avg = enhanced_txpower[element].mimo2_max; - if ((priv->cfg->valid_tx_ant == ANT_ABC) && - (enhanced_txpower[element].mimo3_max > max_txpower_avg)) - max_txpower_avg = enhanced_txpower[element].mimo3_max; - - /* - * max. tx power in EEPROM is in 1/2 dBm format - * convert from 1/2 dBm to dBm (round-up convert) - * but we also do not want to loss 1/2 dBm resolution which - * will impact performance - */ - *max_txpower_in_half_dbm = 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) -{ - 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 - */ -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); - - /* - * 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->common || enhanced_txpower->reserved) - 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; - } - } -} -EXPORT_SYMBOL(iwlcore_eeprom_enhanced_txpower); - #define CHECK_AND_PRINT_I(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \ ? # x " " : "") @@ -1161,4 +816,3 @@ const struct iwl_channel_info *iwl_get_channel_info(const struct iwl_priv *priv, return NULL; } EXPORT_SYMBOL(iwl_get_channel_info); - diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.h b/drivers/net/wireless/iwlwifi/iwl-eeprom.h index 2ae0a11e523b..d9b590625ae4 100644 --- a/drivers/net/wireless/iwlwifi/iwl-eeprom.h +++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.h @@ -501,18 +501,13 @@ struct iwl_eeprom_ops { }; -void iwl_eeprom_get_mac(const struct iwl_priv *priv, u8 *mac); int iwl_eeprom_init(struct iwl_priv *priv); void iwl_eeprom_free(struct iwl_priv *priv); int iwl_eeprom_check_version(struct iwl_priv *priv); const u8 *iwl_eeprom_query_addr(const struct iwl_priv *priv, size_t offset); -u16 iwl_eeprom_query16(const struct iwl_priv *priv, size_t offset); - int iwlcore_eeprom_verify_signature(struct iwl_priv *priv); -int iwlcore_eeprom_acquire_semaphore(struct iwl_priv *priv); -void iwlcore_eeprom_release_semaphore(struct iwl_priv *priv); +u16 iwl_eeprom_query16(const struct iwl_priv *priv, size_t offset); const u8 *iwlcore_eeprom_query_addr(const struct iwl_priv *priv, size_t offset); -void iwlcore_eeprom_enhanced_txpower(struct iwl_priv *priv); int iwl_init_channel_map(struct iwl_priv *priv); void iwl_free_channel_map(struct iwl_priv *priv); const struct iwl_channel_info *iwl_get_channel_info( |