Added missing tegra files.HEADmaster

1 files changed, 299 insertions, 0 deletions

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 00000000000..b8347db850e
--- /dev/null
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-eeprom.c
@@ -0,0 +1,299 @@
+/******************************************************************************
+ *
+ * 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 - 2011 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 - 2011 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 related functions
+ *
+******************************************************************************/
+
+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 = iwlagn_eeprom_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;
+
+}
+
+int iwl_eeprom_check_sku(struct iwl_priv *priv)
+{
+        u16 radio_cfg;
+
+        if (!priv->cfg->sku) {
+                /* not using sku overwrite */
+                priv->cfg->sku = iwl_eeprom_query16(priv, EEPROM_SKU_CAP);
+                if (priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE &&
+                    !priv->cfg->ht_params) {
+                        IWL_ERR(priv, "Invalid 11n configuration\n");
+                        return -EINVAL;
+                }
+        }
+        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_RX_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 = iwl_eeprom_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) */
+
+        /* 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);
+}
+
+static void
+iwlcore_eeprom_enh_txp_read_element(struct iwl_priv *priv,
+                                    struct iwl_eeprom_enhanced_txpwr *txp,
+                                    s8 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 (is_ht40 && ch_info->ht40_max_power_avg < max_txpower_avg)
+                        ch_info->ht40_max_power_avg = 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 " " : "")
+
+void iwlcore_eeprom_enhanced_txpower(struct iwl_priv *priv)
+{
+        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 *) iwl_eeprom_query_addr(priv, EEPROM_TXP_SZ_OFFS);
+        entries = le16_to_cpup(txp_len) * 2 / EEPROM_TXP_ENTRY_LEN;
+
+        txp_array = (void *) iwl_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);
+
+                /*
+                 * Update the user limit values values to the highest
+                 * power supported by any channel
+                 */
+                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;
+
+                iwlcore_eeprom_enh_txp_read_element(priv, txp, max_txp_avg);
+        }
+}