--- /dev/null
+/******************************************************************************
+ *
+ * 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;
+ }
+ }
+}
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
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);
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
*
}
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,
#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.
*
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 " " : "")
return NULL;
}
EXPORT_SYMBOL(iwl_get_channel_info);
-
projects / deliverable / linux.git / commitdiff
