diff options
| -rw-r--r-- | drivers/net/wireless/iwlwifi/Makefile | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-1000.c | 4 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-5000.c | 244 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-6000.c | 8 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c | 274 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-agn.h | 2 |
6 files changed, 287 insertions, 247 deletions
diff --git a/drivers/net/wireless/iwlwifi/Makefile b/drivers/net/wireless/iwlwifi/Makefile index cc4fe20c45e..46fad2d7226 100644 --- a/drivers/net/wireless/iwlwifi/Makefile +++ b/drivers/net/wireless/iwlwifi/Makefile @@ -10,7 +10,7 @@ CFLAGS_iwl-devtrace.o := -I$(src) # AGN obj-$(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 +iwlagn-objs += iwl-agn-ucode.o iwl-agn-hcmd.o iwlagn-$(CONFIG_IWL4965) += iwl-4965.o iwlagn-$(CONFIG_IWL5000) += iwl-5000.o diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c index 283c4ed1170..67d8513cff3 100644 --- a/drivers/net/wireless/iwlwifi/iwl-1000.c +++ b/drivers/net/wireless/iwlwifi/iwl-1000.c @@ -220,8 +220,8 @@ static struct iwl_lib_ops iwl1000_lib = { static const struct iwl_ops iwl1000_ops = { .ucode = &iwlagn_ucode, .lib = &iwl1000_lib, - .hcmd = &iwl5000_hcmd, - .utils = &iwl5000_hcmd_utils, + .hcmd = &iwlagn_hcmd, + .utils = &iwlagn_hcmd_utils, .led = &iwlagn_led_ops, }; diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index bea2f46ef26..8aa382e370f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -165,108 +165,6 @@ u16 iwl5000_eeprom_calib_version(struct iwl_priv *priv) } -static void iwl5000_gain_computation(struct iwl_priv *priv, - u32 average_noise[NUM_RX_CHAINS], - u16 min_average_noise_antenna_i, - u32 min_average_noise, - u8 default_chain) -{ - int i; - s32 delta_g; - struct iwl_chain_noise_data *data = &priv->chain_noise_data; - - /* - * Find Gain Code for the chains based on "default chain" - */ - for (i = default_chain + 1; i < NUM_RX_CHAINS; i++) { - if ((data->disconn_array[i])) { - data->delta_gain_code[i] = 0; - continue; - } - - delta_g = (priv->cfg->chain_noise_scale * - ((s32)average_noise[default_chain] - - (s32)average_noise[i])) / 1500; - - /* bound gain by 2 bits value max, 3rd bit is sign */ - data->delta_gain_code[i] = - min(abs(delta_g), (long) CHAIN_NOISE_MAX_DELTA_GAIN_CODE); - - if (delta_g < 0) - /* - * set negative sign ... - * note to Intel developers: This is uCode API format, - * not the format of any internal device registers. - * Do not change this format for e.g. 6050 or similar - * devices. Change format only if more resolution - * (i.e. more than 2 bits magnitude) is needed. - */ - data->delta_gain_code[i] |= (1 << 2); - } - - IWL_DEBUG_CALIB(priv, "Delta gains: ANT_B = %d ANT_C = %d\n", - data->delta_gain_code[1], data->delta_gain_code[2]); - - if (!data->radio_write) { - struct iwl_calib_chain_noise_gain_cmd cmd; - - memset(&cmd, 0, sizeof(cmd)); - - cmd.hdr.op_code = IWL_PHY_CALIBRATE_CHAIN_NOISE_GAIN_CMD; - cmd.hdr.first_group = 0; - cmd.hdr.groups_num = 1; - cmd.hdr.data_valid = 1; - cmd.delta_gain_1 = data->delta_gain_code[1]; - cmd.delta_gain_2 = data->delta_gain_code[2]; - iwl_send_cmd_pdu_async(priv, REPLY_PHY_CALIBRATION_CMD, - sizeof(cmd), &cmd, NULL); - - data->radio_write = 1; - data->state = IWL_CHAIN_NOISE_CALIBRATED; - } - - data->chain_noise_a = 0; - data->chain_noise_b = 0; - data->chain_noise_c = 0; - data->chain_signal_a = 0; - data->chain_signal_b = 0; - data->chain_signal_c = 0; - data->beacon_count = 0; -} - -static void iwl5000_chain_noise_reset(struct iwl_priv *priv) -{ - struct iwl_chain_noise_data *data = &priv->chain_noise_data; - int ret; - - if ((data->state == IWL_CHAIN_NOISE_ALIVE) && iwl_is_associated(priv)) { - struct iwl_calib_chain_noise_reset_cmd cmd; - memset(&cmd, 0, sizeof(cmd)); - - cmd.hdr.op_code = IWL_PHY_CALIBRATE_CHAIN_NOISE_RESET_CMD; - cmd.hdr.first_group = 0; - cmd.hdr.groups_num = 1; - cmd.hdr.data_valid = 1; - ret = iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD, - sizeof(cmd), &cmd); - if (ret) - IWL_ERR(priv, - "Could not send REPLY_PHY_CALIBRATION_CMD\n"); - data->state = IWL_CHAIN_NOISE_ACCUMULATE; - IWL_DEBUG_CALIB(priv, "Run chain_noise_calibrate\n"); - } -} - -void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info *info, - __le32 *tx_flags) -{ - if ((info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) || - (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)) - *tx_flags |= TX_CMD_FLG_RTS_CTS_MSK; - else - *tx_flags &= ~TX_CMD_FLG_RTS_CTS_MSK; -} - static struct iwl_sensitivity_ranges iwl5000_sensitivity = { .min_nrg_cck = 95, .max_nrg_cck = 0, /* not used, set to 0 */ @@ -832,17 +730,6 @@ int iwl5000_txq_agg_disable(struct iwl_priv *priv, u16 txq_id, return 0; } -u16 iwl5000_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd, u8 *data) -{ - u16 size = (u16)sizeof(struct iwl_addsta_cmd); - struct iwl_addsta_cmd *addsta = (struct iwl_addsta_cmd *)data; - memcpy(addsta, cmd, size); - /* resrved in 5000 */ - addsta->rate_n_flags = cpu_to_le16(0); - return size; -} - - /* * Activate/Deactivate Tx DMA/FIFO channels according tx fifos mask * must be called under priv->lock and mac access @@ -1064,12 +951,6 @@ static void iwl5000_rx_reply_tx(struct iwl_priv *priv, IWL_ERR(priv, "TODO: Implement Tx ABORT REQUIRED!!!\n"); } -/* Currently 5000 is the superset of everything */ -u16 iwl5000_get_hcmd_size(u8 cmd_id, u16 len) -{ - return len; -} - void iwl5000_setup_deferred_work(struct iwl_priv *priv) { /* in 5000 the tx power calibration is done in uCode */ @@ -1093,52 +974,6 @@ int iwl5000_hw_valid_rtc_data_addr(u32 addr) (addr < IWL50_RTC_DATA_UPPER_BOUND); } -static int iwl5000_send_rxon_assoc(struct iwl_priv *priv) -{ - int ret = 0; - struct iwl5000_rxon_assoc_cmd rxon_assoc; - const struct iwl_rxon_cmd *rxon1 = &priv->staging_rxon; - const struct iwl_rxon_cmd *rxon2 = &priv->active_rxon; - - if ((rxon1->flags == rxon2->flags) && - (rxon1->filter_flags == rxon2->filter_flags) && - (rxon1->cck_basic_rates == rxon2->cck_basic_rates) && - (rxon1->ofdm_ht_single_stream_basic_rates == - rxon2->ofdm_ht_single_stream_basic_rates) && - (rxon1->ofdm_ht_dual_stream_basic_rates == - rxon2->ofdm_ht_dual_stream_basic_rates) && - (rxon1->ofdm_ht_triple_stream_basic_rates == - rxon2->ofdm_ht_triple_stream_basic_rates) && - (rxon1->acquisition_data == rxon2->acquisition_data) && - (rxon1->rx_chain == rxon2->rx_chain) && - (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) { - IWL_DEBUG_INFO(priv, "Using current RXON_ASSOC. Not resending.\n"); - return 0; - } - - rxon_assoc.flags = priv->staging_rxon.flags; - rxon_assoc.filter_flags = priv->staging_rxon.filter_flags; - rxon_assoc.ofdm_basic_rates = priv->staging_rxon.ofdm_basic_rates; - rxon_assoc.cck_basic_rates = priv->staging_rxon.cck_basic_rates; - rxon_assoc.reserved1 = 0; - rxon_assoc.reserved2 = 0; - rxon_assoc.reserved3 = 0; - rxon_assoc.ofdm_ht_single_stream_basic_rates = - priv->staging_rxon.ofdm_ht_single_stream_basic_rates; - rxon_assoc.ofdm_ht_dual_stream_basic_rates = - priv->staging_rxon.ofdm_ht_dual_stream_basic_rates; - rxon_assoc.rx_chain_select_flags = priv->staging_rxon.rx_chain; - rxon_assoc.ofdm_ht_triple_stream_basic_rates = - priv->staging_rxon.ofdm_ht_triple_stream_basic_rates; - rxon_assoc.acquisition_data = priv->staging_rxon.acquisition_data; - - ret = iwl_send_cmd_pdu_async(priv, REPLY_RXON_ASSOC, - sizeof(rxon_assoc), &rxon_assoc, NULL); - if (ret) - return ret; - - return ret; -} int iwl5000_send_tx_power(struct iwl_priv *priv) { struct iwl5000_tx_power_dbm_cmd tx_power_cmd; @@ -1194,61 +1029,6 @@ static void iwl5150_temperature(struct iwl_priv *priv) iwl_tt_handler(priv); } -/* Calc max signal level (dBm) among 3 possible receivers */ -int iwl5000_calc_rssi(struct iwl_priv *priv, - struct iwl_rx_phy_res *rx_resp) -{ - /* data from PHY/DSP regarding signal strength, etc., - * contents are always there, not configurable by host - */ - struct iwl5000_non_cfg_phy *ncphy = - (struct iwl5000_non_cfg_phy *)rx_resp->non_cfg_phy_buf; - u32 val, rssi_a, rssi_b, rssi_c, max_rssi; - u8 agc; - - val = le32_to_cpu(ncphy->non_cfg_phy[IWL50_RX_RES_AGC_IDX]); - agc = (val & IWL50_OFDM_AGC_MSK) >> IWL50_OFDM_AGC_BIT_POS; - - /* Find max rssi among 3 possible receivers. - * These values are measured by the digital signal processor (DSP). - * They should stay fairly constant even as the signal strength varies, - * if the radio's automatic gain control (AGC) is working right. - * AGC value (see below) will provide the "interesting" info. - */ - val = le32_to_cpu(ncphy->non_cfg_phy[IWL50_RX_RES_RSSI_AB_IDX]); - rssi_a = (val & IWL50_OFDM_RSSI_A_MSK) >> IWL50_OFDM_RSSI_A_BIT_POS; - rssi_b = (val & IWL50_OFDM_RSSI_B_MSK) >> IWL50_OFDM_RSSI_B_BIT_POS; - val = le32_to_cpu(ncphy->non_cfg_phy[IWL50_RX_RES_RSSI_C_IDX]); - rssi_c = (val & IWL50_OFDM_RSSI_C_MSK) >> IWL50_OFDM_RSSI_C_BIT_POS; - - max_rssi = max_t(u32, rssi_a, rssi_b); - max_rssi = max_t(u32, max_rssi, rssi_c); - - IWL_DEBUG_STATS(priv, "Rssi In A %d B %d C %d Max %d AGC dB %d\n", - rssi_a, rssi_b, rssi_c, max_rssi, agc); - - /* dBm = max_rssi dB - agc dB - constant. - * Higher AGC (higher radio gain) means lower signal. */ - return max_rssi - agc - IWL49_RSSI_OFFSET; -} - -static int iwl5000_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant) -{ - struct iwl_tx_ant_config_cmd tx_ant_cmd = { - .valid = cpu_to_le32(valid_tx_ant), - }; - - if (IWL_UCODE_API(priv->ucode_ver) > 1) { - IWL_DEBUG_HC(priv, "select valid tx ant: %u\n", valid_tx_ant); - return iwl_send_cmd_pdu(priv, TX_ANT_CONFIGURATION_CMD, - sizeof(struct iwl_tx_ant_config_cmd), - &tx_ant_cmd); - } else { - IWL_DEBUG_HC(priv, "TX_ANT_CONFIGURATION_CMD not supported\n"); - return -EOPNOTSUPP; - } -} - static int iwl5000_hw_channel_switch(struct iwl_priv *priv, u16 channel) { struct iwl5000_channel_switch_cmd cmd; @@ -1281,22 +1061,6 @@ static int iwl5000_hw_channel_switch(struct iwl_priv *priv, u16 channel) return iwl_send_cmd_sync(priv, &hcmd); } -struct iwl_hcmd_ops iwl5000_hcmd = { - .rxon_assoc = iwl5000_send_rxon_assoc, - .commit_rxon = iwl_commit_rxon, - .set_rxon_chain = iwl_set_rxon_chain, - .set_tx_ant = iwl5000_send_tx_ant_config, -}; - -struct iwl_hcmd_utils_ops iwl5000_hcmd_utils = { - .get_hcmd_size = iwl5000_get_hcmd_size, - .build_addsta_hcmd = iwl5000_build_addsta_hcmd, - .gain_computation = iwl5000_gain_computation, - .chain_noise_reset = iwl5000_chain_noise_reset, - .rts_tx_cmd_flag = iwl5000_rts_tx_cmd_flag, - .calc_rssi = iwl5000_calc_rssi, -}; - struct iwl_lib_ops iwl5000_lib = { .set_hw_params = iwl5000_hw_set_hw_params, .txq_update_byte_cnt_tbl = iwl5000_txq_update_byte_cnt_tbl, @@ -1415,16 +1179,16 @@ static struct iwl_lib_ops iwl5150_lib = { static const struct iwl_ops iwl5000_ops = { .ucode = &iwlagn_ucode, .lib = &iwl5000_lib, - .hcmd = &iwl5000_hcmd, - .utils = &iwl5000_hcmd_utils, + .hcmd = &iwlagn_hcmd, + .utils = &iwlagn_hcmd_utils, .led = &iwlagn_led_ops, }; static const struct iwl_ops iwl5150_ops = { .ucode = &iwlagn_ucode, .lib = &iwl5150_lib, - .hcmd = &iwl5000_hcmd, - .utils = &iwl5000_hcmd_utils, + .hcmd = &iwlagn_hcmd, + .utils = &iwlagn_hcmd_utils, .led = &iwlagn_led_ops, }; diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c index b7297177c05..aff46b08703 100644 --- a/drivers/net/wireless/iwlwifi/iwl-6000.c +++ b/drivers/net/wireless/iwlwifi/iwl-6000.c @@ -286,8 +286,8 @@ static struct iwl_lib_ops iwl6000_lib = { static const struct iwl_ops iwl6000_ops = { .ucode = &iwlagn_ucode, .lib = &iwl6000_lib, - .hcmd = &iwl5000_hcmd, - .utils = &iwl5000_hcmd_utils, + .hcmd = &iwlagn_hcmd, + .utils = &iwlagn_hcmd_utils, .led = &iwlagn_led_ops, }; @@ -354,8 +354,8 @@ static struct iwl_lib_ops iwl6050_lib = { static const struct iwl_ops iwl6050_ops = { .ucode = &iwlagn_ucode, .lib = &iwl6050_lib, - .hcmd = &iwl5000_hcmd, - .utils = &iwl5000_hcmd_utils, + .hcmd = &iwlagn_hcmd, + .utils = &iwlagn_hcmd_utils, .led = &iwlagn_led_ops, }; diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c b/drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c new file mode 100644 index 00000000000..3ac010b1b1c --- /dev/null +++ b/drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c @@ -0,0 +1,274 @@ +/****************************************************************************** + * + * 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 + * + *****************************************************************************/ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/sched.h> + +#include "iwl-dev.h" +#include "iwl-core.h" +#include "iwl-io.h" +#include "iwl-5000-hw.h" + +static int iwlagn_send_rxon_assoc(struct iwl_priv *priv) +{ + int ret = 0; + struct iwl5000_rxon_assoc_cmd rxon_assoc; + const struct iwl_rxon_cmd *rxon1 = &priv->staging_rxon; + const struct iwl_rxon_cmd *rxon2 = &priv->active_rxon; + + if ((rxon1->flags == rxon2->flags) && + (rxon1->filter_flags == rxon2->filter_flags) && + (rxon1->cck_basic_rates == rxon2->cck_basic_rates) && + (rxon1->ofdm_ht_single_stream_basic_rates == + rxon2->ofdm_ht_single_stream_basic_rates) && + (rxon1->ofdm_ht_dual_stream_basic_rates == + rxon2->ofdm_ht_dual_stream_basic_rates) && + (rxon1->ofdm_ht_triple_stream_basic_rates == + rxon2->ofdm_ht_triple_stream_basic_rates) && + (rxon1->acquisition_data == rxon2->acquisition_data) && + (rxon1->rx_chain == rxon2->rx_chain) && + (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) { + IWL_DEBUG_INFO(priv, "Using current RXON_ASSOC. Not resending.\n"); + return 0; + } + + rxon_assoc.flags = priv->staging_rxon.flags; + rxon_assoc.filter_flags = priv->staging_rxon.filter_flags; + rxon_assoc.ofdm_basic_rates = priv->staging_rxon.ofdm_basic_rates; + rxon_assoc.cck_basic_rates = priv->staging_rxon.cck_basic_rates; + rxon_assoc.reserved1 = 0; + rxon_assoc.reserved2 = 0; + rxon_assoc.reserved3 = 0; + rxon_assoc.ofdm_ht_single_stream_basic_rates = + priv->staging_rxon.ofdm_ht_single_stream_basic_rates; + rxon_assoc.ofdm_ht_dual_stream_basic_rates = + priv->staging_rxon.ofdm_ht_dual_stream_basic_rates; + rxon_assoc.rx_chain_select_flags = priv->staging_rxon.rx_chain; + rxon_assoc.ofdm_ht_triple_stream_basic_rates = + priv->staging_rxon.ofdm_ht_triple_stream_basic_rates; + rxon_assoc.acquisition_data = priv->staging_rxon.acquisition_data; + + ret = iwl_send_cmd_pdu_async(priv, REPLY_RXON_ASSOC, + sizeof(rxon_assoc), &rxon_assoc, NULL); + if (ret) + return ret; + + return ret; +} + +static int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant) +{ + struct iwl_tx_ant_config_cmd tx_ant_cmd = { + .valid = cpu_to_le32(valid_tx_ant), + }; + + if (IWL_UCODE_API(priv->ucode_ver) > 1) { + IWL_DEBUG_HC(priv, "select valid tx ant: %u\n", valid_tx_ant); + return iwl_send_cmd_pdu(priv, TX_ANT_CONFIGURATION_CMD, + sizeof(struct iwl_tx_ant_config_cmd), + &tx_ant_cmd); + } else { + IWL_DEBUG_HC(priv, "TX_ANT_CONFIGURATION_CMD not supported\n"); + return -EOPNOTSUPP; + } +} + +/* Currently this is the superset of everything */ +static u16 iwlagn_get_hcmd_size(u8 cmd_id, u16 len) +{ + return len; +} + +static u16 iwlagn_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd, u8 *data) +{ + u16 size = (u16)sizeof(struct iwl_addsta_cmd); + struct iwl_addsta_cmd *addsta = (struct iwl_addsta_cmd *)data; + memcpy(addsta, cmd, size); + /* resrved in 5000 */ + addsta->rate_n_flags = cpu_to_le16(0); + return size; +} + +static void iwlagn_gain_computation(struct iwl_priv *priv, + u32 average_noise[NUM_RX_CHAINS], + u16 min_average_noise_antenna_i, + u32 min_average_noise, + u8 default_chain) +{ + int i; + s32 delta_g; + struct iwl_chain_noise_data *data = &priv->chain_noise_data; + + /* + * Find Gain Code for the chains based on "default chain" + */ + for (i = default_chain + 1; i < NUM_RX_CHAINS; i++) { + if ((data->disconn_array[i])) { + data->delta_gain_code[i] = 0; + continue; + } + + delta_g = (priv->cfg->chain_noise_scale * + ((s32)average_noise[default_chain] - + (s32)average_noise[i])) / 1500; + + /* bound gain by 2 bits value max, 3rd bit is sign */ + data->delta_gain_code[i] = + min(abs(delta_g), (long) CHAIN_NOISE_MAX_DELTA_GAIN_CODE); + + if (delta_g < 0) + /* + * set negative sign ... + * note to Intel developers: This is uCode API format, + * not the format of any internal device registers. + * Do not change this format for e.g. 6050 or similar + * devices. Change format only if more resolution + * (i.e. more than 2 bits magnitude) is needed. + */ + data->delta_gain_code[i] |= (1 << 2); + } + + IWL_DEBUG_CALIB(priv, "Delta gains: ANT_B = %d ANT_C = %d\n", + data->delta_gain_code[1], data->delta_gain_code[2]); + + if (!data->radio_write) { + struct iwl_calib_chain_noise_gain_cmd cmd; + + memset(&cmd, 0, sizeof(cmd)); + + cmd.hdr.op_code = IWL_PHY_CALIBRATE_CHAIN_NOISE_GAIN_CMD; + cmd.hdr.first_group = 0; + cmd.hdr.groups_num = 1; + cmd.hdr.data_valid = 1; + cmd.delta_gain_1 = data->delta_gain_code[1]; + cmd.delta_gain_2 = data->delta_gain_code[2]; + iwl_send_cmd_pdu_async(priv, REPLY_PHY_CALIBRATION_CMD, + sizeof(cmd), &cmd, NULL); + + data->radio_write = 1; + data->state = IWL_CHAIN_NOISE_CALIBRATED; + } + + data->chain_noise_a = 0; + data->chain_noise_b = 0; + data->chain_noise_c = 0; + data->chain_signal_a = 0; + data->chain_signal_b = 0; + data->chain_signal_c = 0; + data->beacon_count = 0; +} + +static void iwlagn_chain_noise_reset(struct iwl_priv *priv) +{ + struct iwl_chain_noise_data *data = &priv->chain_noise_data; + int ret; + + if ((data->state == IWL_CHAIN_NOISE_ALIVE) && iwl_is_associated(priv)) { + struct iwl_calib_chain_noise_reset_cmd cmd; + memset(&cmd, 0, sizeof(cmd)); + + cmd.hdr.op_code = IWL_PHY_CALIBRATE_CHAIN_NOISE_RESET_CMD; + cmd.hdr.first_group = 0; + cmd.hdr.groups_num = 1; + cmd.hdr.data_valid = 1; + ret = iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD, + sizeof(cmd), &cmd); + if (ret) + IWL_ERR(priv, + "Could not send REPLY_PHY_CALIBRATION_CMD\n"); + data->state = IWL_CHAIN_NOISE_ACCUMULATE; + IWL_DEBUG_CALIB(priv, "Run chain_noise_calibrate\n"); + } +} + +static void iwlagn_rts_tx_cmd_flag(struct ieee80211_tx_info *info, + __le32 *tx_flags) +{ + if ((info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) || + (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)) + *tx_flags |= TX_CMD_FLG_RTS_CTS_MSK; + else + *tx_flags &= ~TX_CMD_FLG_RTS_CTS_MSK; +} + +/* Calc max signal level (dBm) among 3 possible receivers */ +static int iwlagn_calc_rssi(struct iwl_priv *priv, + struct iwl_rx_phy_res *rx_resp) +{ + /* data from PHY/DSP regarding signal strength, etc., + * contents are always there, not configurable by host + */ + struct iwl5000_non_cfg_phy *ncphy = + (struct iwl5000_non_cfg_phy *)rx_resp->non_cfg_phy_buf; + u32 val, rssi_a, rssi_b, rssi_c, max_rssi; + u8 agc; + + val = le32_to_cpu(ncphy->non_cfg_phy[IWL50_RX_RES_AGC_IDX]); + agc = (val & IWL50_OFDM_AGC_MSK) >> IWL50_OFDM_AGC_BIT_POS; + + /* Find max rssi among 3 possible receivers. + * These values are measured by the digital signal processor (DSP). + * They should stay fairly constant even as the signal strength varies, + * if the radio's automatic gain control (AGC) is working right. + * AGC value (see below) will provide the "interesting" info. + */ + val = le32_to_cpu(ncphy->non_cfg_phy[IWL50_RX_RES_RSSI_AB_IDX]); + rssi_a = (val & IWL50_OFDM_RSSI_A_MSK) >> IWL50_OFDM_RSSI_A_BIT_POS; + rssi_b = (val & IWL50_OFDM_RSSI_B_MSK) >> IWL50_OFDM_RSSI_B_BIT_POS; + val = le32_to_cpu(ncphy->non_cfg_phy[IWL50_RX_RES_RSSI_C_IDX]); + rssi_c = (val & IWL50_OFDM_RSSI_C_MSK) >> IWL50_OFDM_RSSI_C_BIT_POS; + + max_rssi = max_t(u32, rssi_a, rssi_b); + max_rssi = max_t(u32, max_rssi, rssi_c); + + IWL_DEBUG_STATS(priv, "Rssi In A %d B %d C %d Max %d AGC dB %d\n", + rssi_a, rssi_b, rssi_c, max_rssi, agc); + + /* dBm = max_rssi dB - agc dB - constant. + * Higher AGC (higher radio gain) means lower signal. */ + return max_rssi - agc - IWL49_RSSI_OFFSET; +} + +struct iwl_hcmd_ops iwlagn_hcmd = { + .rxon_assoc = iwlagn_send_rxon_assoc, + .commit_rxon = iwl_commit_rxon, + .set_rxon_chain = iwl_set_rxon_chain, + .set_tx_ant = iwlagn_send_tx_ant_config, +}; + +struct iwl_hcmd_utils_ops iwlagn_hcmd_utils = { + .get_hcmd_size = iwlagn_get_hcmd_size, + .build_addsta_hcmd = iwlagn_build_addsta_hcmd, + .gain_computation = iwlagn_gain_computation, + .chain_noise_reset = iwlagn_chain_noise_reset, + .rts_tx_cmd_flag = iwlagn_rts_tx_cmd_flag, + .calc_rssi = iwlagn_calc_rssi, +}; diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.h b/drivers/net/wireless/iwlwifi/iwl-agn.h index 5af528dd3c6..51e49df3644 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.h +++ b/drivers/net/wireless/iwlwifi/iwl-agn.h @@ -66,6 +66,8 @@ #include "iwl-dev.h" extern struct iwl_ucode_ops iwlagn_ucode; +extern struct iwl_hcmd_ops iwlagn_hcmd; +extern struct iwl_hcmd_utils_ops iwlagn_hcmd_utils; int iwl_reset_ict(struct iwl_priv *priv); void iwl_disable_ict(struct iwl_priv *priv); |