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a6c5c731c3
Invoke workaround to avoid instability in L0->L0S->L1 transition on PCIe bus. Workaround disables L0S state so device moves directly from L0->L1. Workaround needed on all devices since and including 4965; add to 6000/1000. Describe bug and workaround better in comments. Signed-off-by: Ben Cahill <ben.m.cahill@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
204 lines
6.7 KiB
C
204 lines
6.7 KiB
C
/******************************************************************************
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*
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* Copyright(c) 2008-2009 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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* The full GNU General Public License is included in this distribution in the
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* file called LICENSE.
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*
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* Contact Information:
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* Intel Linux Wireless <ilw@linux.intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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*****************************************************************************/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <linux/dma-mapping.h>
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#include <linux/delay.h>
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#include <linux/skbuff.h>
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#include <linux/netdevice.h>
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#include <linux/wireless.h>
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#include <net/mac80211.h>
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#include <linux/etherdevice.h>
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#include <asm/unaligned.h>
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#include "iwl-eeprom.h"
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#include "iwl-dev.h"
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#include "iwl-core.h"
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#include "iwl-io.h"
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#include "iwl-sta.h"
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#include "iwl-helpers.h"
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#include "iwl-5000-hw.h"
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#include "iwl-agn-led.h"
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/* Highest firmware API version supported */
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#define IWL1000_UCODE_API_MAX 3
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/* Lowest firmware API version supported */
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#define IWL1000_UCODE_API_MIN 1
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#define IWL1000_FW_PRE "iwlwifi-1000-"
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#define _IWL1000_MODULE_FIRMWARE(api) IWL1000_FW_PRE #api ".ucode"
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#define IWL1000_MODULE_FIRMWARE(api) _IWL1000_MODULE_FIRMWARE(api)
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/*
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* For 1000, use advance thermal throttling critical temperature threshold,
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* but legacy thermal management implementation for now.
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* This is for the reason of 1000 uCode using advance thermal throttling API
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* but not implement ct_kill_exit based on ct_kill exit temperature
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* so the thermal throttling will still based on legacy thermal throttling
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* management.
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* The code here need to be modified once 1000 uCode has the advanced thermal
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* throttling algorithm in place
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*/
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static void iwl1000_set_ct_threshold(struct iwl_priv *priv)
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{
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/* want Celsius */
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priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD_LEGACY;
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priv->hw_params.ct_kill_exit_threshold = CT_KILL_EXIT_THRESHOLD;
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}
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/* NIC configuration for 1000 series */
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static void iwl1000_nic_config(struct iwl_priv *priv)
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{
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/* set CSR_HW_CONFIG_REG for uCode use */
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iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
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CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
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CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
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/* Setting digital SVR for 1000 card to 1.32V */
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/* locking is acquired in iwl_set_bits_mask_prph() function */
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iwl_set_bits_mask_prph(priv, APMG_DIGITAL_SVR_REG,
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APMG_SVR_DIGITAL_VOLTAGE_1_32,
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~APMG_SVR_VOLTAGE_CONFIG_BIT_MSK);
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}
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static struct iwl_lib_ops iwl1000_lib = {
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.set_hw_params = iwl5000_hw_set_hw_params,
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.txq_update_byte_cnt_tbl = iwl5000_txq_update_byte_cnt_tbl,
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.txq_inval_byte_cnt_tbl = iwl5000_txq_inval_byte_cnt_tbl,
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.txq_set_sched = iwl5000_txq_set_sched,
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.txq_agg_enable = iwl5000_txq_agg_enable,
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.txq_agg_disable = iwl5000_txq_agg_disable,
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.txq_attach_buf_to_tfd = iwl_hw_txq_attach_buf_to_tfd,
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.txq_free_tfd = iwl_hw_txq_free_tfd,
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.txq_init = iwl_hw_tx_queue_init,
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.rx_handler_setup = iwl5000_rx_handler_setup,
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.setup_deferred_work = iwl5000_setup_deferred_work,
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.is_valid_rtc_data_addr = iwl5000_hw_valid_rtc_data_addr,
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.load_ucode = iwl5000_load_ucode,
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.dump_nic_event_log = iwl_dump_nic_event_log,
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.dump_nic_error_log = iwl_dump_nic_error_log,
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.init_alive_start = iwl5000_init_alive_start,
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.alive_notify = iwl5000_alive_notify,
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.send_tx_power = iwl5000_send_tx_power,
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.update_chain_flags = iwl_update_chain_flags,
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.apm_ops = {
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.init = iwl_apm_init,
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.stop = iwl_apm_stop,
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.config = iwl1000_nic_config,
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.set_pwr_src = iwl_set_pwr_src,
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},
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.eeprom_ops = {
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.regulatory_bands = {
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EEPROM_5000_REG_BAND_1_CHANNELS,
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EEPROM_5000_REG_BAND_2_CHANNELS,
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EEPROM_5000_REG_BAND_3_CHANNELS,
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EEPROM_5000_REG_BAND_4_CHANNELS,
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EEPROM_5000_REG_BAND_5_CHANNELS,
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EEPROM_5000_REG_BAND_24_HT40_CHANNELS,
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EEPROM_5000_REG_BAND_52_HT40_CHANNELS
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},
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.verify_signature = iwlcore_eeprom_verify_signature,
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.acquire_semaphore = iwlcore_eeprom_acquire_semaphore,
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.release_semaphore = iwlcore_eeprom_release_semaphore,
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.calib_version = iwl5000_eeprom_calib_version,
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.query_addr = iwl5000_eeprom_query_addr,
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},
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.post_associate = iwl_post_associate,
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.isr = iwl_isr_ict,
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.config_ap = iwl_config_ap,
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.temp_ops = {
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.temperature = iwl5000_temperature,
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.set_ct_kill = iwl1000_set_ct_threshold,
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},
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};
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static struct iwl_ops iwl1000_ops = {
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.ucode = &iwl5000_ucode,
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.lib = &iwl1000_lib,
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.hcmd = &iwl5000_hcmd,
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.utils = &iwl5000_hcmd_utils,
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.led = &iwlagn_led_ops,
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};
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struct iwl_cfg iwl1000_bgn_cfg = {
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.name = "1000 Series BGN",
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.fw_name_pre = IWL1000_FW_PRE,
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.ucode_api_max = IWL1000_UCODE_API_MAX,
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.ucode_api_min = IWL1000_UCODE_API_MIN,
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.sku = IWL_SKU_G|IWL_SKU_N,
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.ops = &iwl1000_ops,
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.eeprom_size = OTP_LOW_IMAGE_SIZE,
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.eeprom_ver = EEPROM_1000_EEPROM_VERSION,
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.eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
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.num_of_queues = IWL50_NUM_QUEUES,
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.num_of_ampdu_queues = IWL50_NUM_AMPDU_QUEUES,
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.mod_params = &iwl50_mod_params,
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.valid_tx_ant = ANT_A,
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.valid_rx_ant = ANT_AB,
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.pll_cfg_val = CSR50_ANA_PLL_CFG_VAL,
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.set_l0s = true,
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.use_bsm = false,
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.max_ll_items = OTP_MAX_LL_ITEMS_1000,
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.shadow_ram_support = false,
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.ht_greenfield_support = true,
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.led_compensation = 51,
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.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
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.support_ct_kill_exit = true,
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};
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struct iwl_cfg iwl1000_bg_cfg = {
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.name = "1000 Series BG",
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.fw_name_pre = IWL1000_FW_PRE,
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.ucode_api_max = IWL1000_UCODE_API_MAX,
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.ucode_api_min = IWL1000_UCODE_API_MIN,
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.sku = IWL_SKU_G,
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.ops = &iwl1000_ops,
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.eeprom_size = OTP_LOW_IMAGE_SIZE,
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.eeprom_ver = EEPROM_1000_EEPROM_VERSION,
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.eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
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.num_of_queues = IWL50_NUM_QUEUES,
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.num_of_ampdu_queues = IWL50_NUM_AMPDU_QUEUES,
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.mod_params = &iwl50_mod_params,
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.valid_tx_ant = ANT_A,
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.valid_rx_ant = ANT_AB,
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.pll_cfg_val = CSR50_ANA_PLL_CFG_VAL,
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.set_l0s = true,
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.use_bsm = false,
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.max_ll_items = OTP_MAX_LL_ITEMS_1000,
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.shadow_ram_support = false,
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.ht_greenfield_support = true,
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.led_compensation = 51,
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.chain_noise_num_beacons = IWL_CAL_NUM_BEACONS,
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.support_ct_kill_exit = true,
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};
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MODULE_FIRMWARE(IWL1000_MODULE_FIRMWARE(IWL1000_UCODE_API_MAX));
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