1461 lines
40 KiB
C
1461 lines
40 KiB
C
/******************************************************************************
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2008 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
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* it 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
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
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* USA
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*
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* The full GNU General Public License is included in this distribution
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* in the file called LICENSE.GPL.
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*
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* Contact Information:
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* Tomas Winkler <tomas.winkler@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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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <net/mac80211.h>
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struct iwl_priv; /* FIXME: remove */
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#include "iwl-debug.h"
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#include "iwl-eeprom.h"
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#include "iwl-dev.h" /* FIXME: remove */
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#include "iwl-core.h"
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#include "iwl-io.h"
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#include "iwl-rfkill.h"
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#include "iwl-power.h"
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MODULE_DESCRIPTION("iwl core");
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MODULE_VERSION(IWLWIFI_VERSION);
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MODULE_AUTHOR(DRV_COPYRIGHT);
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MODULE_LICENSE("GPL");
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#define IWL_DECLARE_RATE_INFO(r, s, ip, in, rp, rn, pp, np) \
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[IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \
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IWL_RATE_SISO_##s##M_PLCP, \
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IWL_RATE_MIMO2_##s##M_PLCP,\
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IWL_RATE_MIMO3_##s##M_PLCP,\
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IWL_RATE_##r##M_IEEE, \
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IWL_RATE_##ip##M_INDEX, \
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IWL_RATE_##in##M_INDEX, \
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IWL_RATE_##rp##M_INDEX, \
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IWL_RATE_##rn##M_INDEX, \
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IWL_RATE_##pp##M_INDEX, \
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IWL_RATE_##np##M_INDEX }
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/*
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* Parameter order:
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* rate, ht rate, prev rate, next rate, prev tgg rate, next tgg rate
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*
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* If there isn't a valid next or previous rate then INV is used which
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* maps to IWL_RATE_INVALID
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*
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*/
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const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT] = {
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IWL_DECLARE_RATE_INFO(1, INV, INV, 2, INV, 2, INV, 2), /* 1mbps */
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IWL_DECLARE_RATE_INFO(2, INV, 1, 5, 1, 5, 1, 5), /* 2mbps */
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IWL_DECLARE_RATE_INFO(5, INV, 2, 6, 2, 11, 2, 11), /*5.5mbps */
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IWL_DECLARE_RATE_INFO(11, INV, 9, 12, 9, 12, 5, 18), /* 11mbps */
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IWL_DECLARE_RATE_INFO(6, 6, 5, 9, 5, 11, 5, 11), /* 6mbps */
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IWL_DECLARE_RATE_INFO(9, 6, 6, 11, 6, 11, 5, 11), /* 9mbps */
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IWL_DECLARE_RATE_INFO(12, 12, 11, 18, 11, 18, 11, 18), /* 12mbps */
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IWL_DECLARE_RATE_INFO(18, 18, 12, 24, 12, 24, 11, 24), /* 18mbps */
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IWL_DECLARE_RATE_INFO(24, 24, 18, 36, 18, 36, 18, 36), /* 24mbps */
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IWL_DECLARE_RATE_INFO(36, 36, 24, 48, 24, 48, 24, 48), /* 36mbps */
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IWL_DECLARE_RATE_INFO(48, 48, 36, 54, 36, 54, 36, 54), /* 48mbps */
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IWL_DECLARE_RATE_INFO(54, 54, 48, INV, 48, INV, 48, INV),/* 54mbps */
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IWL_DECLARE_RATE_INFO(60, 60, 48, INV, 48, INV, 48, INV),/* 60mbps */
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/* FIXME:RS: ^^ should be INV (legacy) */
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};
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EXPORT_SYMBOL(iwl_rates);
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/**
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* translate ucode response to mac80211 tx status control values
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*/
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void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
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struct ieee80211_tx_info *control)
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{
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int rate_index;
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control->antenna_sel_tx =
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((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS);
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if (rate_n_flags & RATE_MCS_HT_MSK)
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control->flags |= IEEE80211_TX_CTL_OFDM_HT;
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if (rate_n_flags & RATE_MCS_GF_MSK)
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control->flags |= IEEE80211_TX_CTL_GREEN_FIELD;
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if (rate_n_flags & RATE_MCS_FAT_MSK)
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control->flags |= IEEE80211_TX_CTL_40_MHZ_WIDTH;
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if (rate_n_flags & RATE_MCS_DUP_MSK)
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control->flags |= IEEE80211_TX_CTL_DUP_DATA;
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if (rate_n_flags & RATE_MCS_SGI_MSK)
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control->flags |= IEEE80211_TX_CTL_SHORT_GI;
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rate_index = iwl_hwrate_to_plcp_idx(rate_n_flags);
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if (control->band == IEEE80211_BAND_5GHZ)
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rate_index -= IWL_FIRST_OFDM_RATE;
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control->tx_rate_idx = rate_index;
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}
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EXPORT_SYMBOL(iwl_hwrate_to_tx_control);
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int iwl_hwrate_to_plcp_idx(u32 rate_n_flags)
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{
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int idx = 0;
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/* HT rate format */
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if (rate_n_flags & RATE_MCS_HT_MSK) {
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idx = (rate_n_flags & 0xff);
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if (idx >= IWL_RATE_MIMO2_6M_PLCP)
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idx = idx - IWL_RATE_MIMO2_6M_PLCP;
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idx += IWL_FIRST_OFDM_RATE;
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/* skip 9M not supported in ht*/
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if (idx >= IWL_RATE_9M_INDEX)
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idx += 1;
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if ((idx >= IWL_FIRST_OFDM_RATE) && (idx <= IWL_LAST_OFDM_RATE))
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return idx;
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/* legacy rate format, search for match in table */
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} else {
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for (idx = 0; idx < ARRAY_SIZE(iwl_rates); idx++)
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if (iwl_rates[idx].plcp == (rate_n_flags & 0xFF))
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return idx;
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}
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return -1;
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}
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EXPORT_SYMBOL(iwl_hwrate_to_plcp_idx);
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const u8 iwl_bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
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EXPORT_SYMBOL(iwl_bcast_addr);
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/* This function both allocates and initializes hw and priv. */
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struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg,
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struct ieee80211_ops *hw_ops)
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{
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struct iwl_priv *priv;
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/* mac80211 allocates memory for this device instance, including
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* space for this driver's private structure */
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struct ieee80211_hw *hw =
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ieee80211_alloc_hw(sizeof(struct iwl_priv), hw_ops);
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if (hw == NULL) {
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IWL_ERROR("Can not allocate network device\n");
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goto out;
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}
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priv = hw->priv;
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priv->hw = hw;
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out:
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return hw;
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}
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EXPORT_SYMBOL(iwl_alloc_all);
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void iwl_hw_detect(struct iwl_priv *priv)
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{
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priv->hw_rev = _iwl_read32(priv, CSR_HW_REV);
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priv->hw_wa_rev = _iwl_read32(priv, CSR_HW_REV_WA_REG);
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pci_read_config_byte(priv->pci_dev, PCI_REVISION_ID, &priv->rev_id);
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}
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EXPORT_SYMBOL(iwl_hw_detect);
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/* Tell nic where to find the "keep warm" buffer */
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int iwl_kw_init(struct iwl_priv *priv)
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{
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unsigned long flags;
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int ret;
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spin_lock_irqsave(&priv->lock, flags);
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ret = iwl_grab_nic_access(priv);
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if (ret)
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goto out;
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iwl_write_direct32(priv, FH_KW_MEM_ADDR_REG,
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priv->kw.dma_addr >> 4);
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iwl_release_nic_access(priv);
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out:
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spin_unlock_irqrestore(&priv->lock, flags);
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return ret;
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}
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int iwl_kw_alloc(struct iwl_priv *priv)
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{
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struct pci_dev *dev = priv->pci_dev;
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struct iwl_kw *kw = &priv->kw;
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kw->size = IWL_KW_SIZE;
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kw->v_addr = pci_alloc_consistent(dev, kw->size, &kw->dma_addr);
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if (!kw->v_addr)
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return -ENOMEM;
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return 0;
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}
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/**
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* iwl_kw_free - Free the "keep warm" buffer
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*/
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void iwl_kw_free(struct iwl_priv *priv)
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{
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struct pci_dev *dev = priv->pci_dev;
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struct iwl_kw *kw = &priv->kw;
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if (kw->v_addr) {
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pci_free_consistent(dev, kw->size, kw->v_addr, kw->dma_addr);
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memset(kw, 0, sizeof(*kw));
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}
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}
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int iwl_hw_nic_init(struct iwl_priv *priv)
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{
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unsigned long flags;
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struct iwl_rx_queue *rxq = &priv->rxq;
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int ret;
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/* nic_init */
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spin_lock_irqsave(&priv->lock, flags);
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priv->cfg->ops->lib->apm_ops.init(priv);
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iwl_write32(priv, CSR_INT_COALESCING, 512 / 32);
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spin_unlock_irqrestore(&priv->lock, flags);
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ret = priv->cfg->ops->lib->apm_ops.set_pwr_src(priv, IWL_PWR_SRC_VMAIN);
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priv->cfg->ops->lib->apm_ops.config(priv);
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/* Allocate the RX queue, or reset if it is already allocated */
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if (!rxq->bd) {
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ret = iwl_rx_queue_alloc(priv);
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if (ret) {
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IWL_ERROR("Unable to initialize Rx queue\n");
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return -ENOMEM;
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}
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} else
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iwl_rx_queue_reset(priv, rxq);
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iwl_rx_replenish(priv);
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iwl_rx_init(priv, rxq);
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spin_lock_irqsave(&priv->lock, flags);
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rxq->need_update = 1;
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iwl_rx_queue_update_write_ptr(priv, rxq);
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spin_unlock_irqrestore(&priv->lock, flags);
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/* Allocate and init all Tx and Command queues */
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ret = iwl_txq_ctx_reset(priv);
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if (ret)
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return ret;
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set_bit(STATUS_INIT, &priv->status);
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return 0;
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}
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EXPORT_SYMBOL(iwl_hw_nic_init);
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/**
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* iwl_clear_stations_table - Clear the driver's station table
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*
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* NOTE: This does not clear or otherwise alter the device's station table.
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*/
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void iwl_clear_stations_table(struct iwl_priv *priv)
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{
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unsigned long flags;
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spin_lock_irqsave(&priv->sta_lock, flags);
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if (iwl_is_alive(priv) &&
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!test_bit(STATUS_EXIT_PENDING, &priv->status) &&
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iwl_send_cmd_pdu_async(priv, REPLY_REMOVE_ALL_STA, 0, NULL, NULL))
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IWL_ERROR("Couldn't clear the station table\n");
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priv->num_stations = 0;
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memset(priv->stations, 0, sizeof(priv->stations));
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spin_unlock_irqrestore(&priv->sta_lock, flags);
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}
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EXPORT_SYMBOL(iwl_clear_stations_table);
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void iwl_reset_qos(struct iwl_priv *priv)
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{
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u16 cw_min = 15;
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u16 cw_max = 1023;
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u8 aifs = 2;
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u8 is_legacy = 0;
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unsigned long flags;
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int i;
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spin_lock_irqsave(&priv->lock, flags);
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priv->qos_data.qos_active = 0;
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if (priv->iw_mode == NL80211_IFTYPE_ADHOC) {
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if (priv->qos_data.qos_enable)
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priv->qos_data.qos_active = 1;
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if (!(priv->active_rate & 0xfff0)) {
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cw_min = 31;
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is_legacy = 1;
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}
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} else if (priv->iw_mode == NL80211_IFTYPE_AP) {
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if (priv->qos_data.qos_enable)
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priv->qos_data.qos_active = 1;
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} else if (!(priv->staging_rxon.flags & RXON_FLG_SHORT_SLOT_MSK)) {
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cw_min = 31;
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is_legacy = 1;
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}
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if (priv->qos_data.qos_active)
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aifs = 3;
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priv->qos_data.def_qos_parm.ac[0].cw_min = cpu_to_le16(cw_min);
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priv->qos_data.def_qos_parm.ac[0].cw_max = cpu_to_le16(cw_max);
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priv->qos_data.def_qos_parm.ac[0].aifsn = aifs;
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priv->qos_data.def_qos_parm.ac[0].edca_txop = 0;
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priv->qos_data.def_qos_parm.ac[0].reserved1 = 0;
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if (priv->qos_data.qos_active) {
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i = 1;
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priv->qos_data.def_qos_parm.ac[i].cw_min = cpu_to_le16(cw_min);
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priv->qos_data.def_qos_parm.ac[i].cw_max = cpu_to_le16(cw_max);
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priv->qos_data.def_qos_parm.ac[i].aifsn = 7;
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priv->qos_data.def_qos_parm.ac[i].edca_txop = 0;
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priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
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i = 2;
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priv->qos_data.def_qos_parm.ac[i].cw_min =
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cpu_to_le16((cw_min + 1) / 2 - 1);
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priv->qos_data.def_qos_parm.ac[i].cw_max =
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cpu_to_le16(cw_max);
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priv->qos_data.def_qos_parm.ac[i].aifsn = 2;
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if (is_legacy)
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priv->qos_data.def_qos_parm.ac[i].edca_txop =
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cpu_to_le16(6016);
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else
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priv->qos_data.def_qos_parm.ac[i].edca_txop =
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cpu_to_le16(3008);
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priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
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i = 3;
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priv->qos_data.def_qos_parm.ac[i].cw_min =
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cpu_to_le16((cw_min + 1) / 4 - 1);
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priv->qos_data.def_qos_parm.ac[i].cw_max =
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cpu_to_le16((cw_max + 1) / 2 - 1);
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priv->qos_data.def_qos_parm.ac[i].aifsn = 2;
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priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
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if (is_legacy)
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priv->qos_data.def_qos_parm.ac[i].edca_txop =
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cpu_to_le16(3264);
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else
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priv->qos_data.def_qos_parm.ac[i].edca_txop =
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cpu_to_le16(1504);
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} else {
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for (i = 1; i < 4; i++) {
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priv->qos_data.def_qos_parm.ac[i].cw_min =
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cpu_to_le16(cw_min);
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priv->qos_data.def_qos_parm.ac[i].cw_max =
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cpu_to_le16(cw_max);
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priv->qos_data.def_qos_parm.ac[i].aifsn = aifs;
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priv->qos_data.def_qos_parm.ac[i].edca_txop = 0;
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priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
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}
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}
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IWL_DEBUG_QOS("set QoS to default \n");
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spin_unlock_irqrestore(&priv->lock, flags);
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}
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EXPORT_SYMBOL(iwl_reset_qos);
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#define MAX_BIT_RATE_40_MHZ 0x96 /* 150 Mbps */
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#define MAX_BIT_RATE_20_MHZ 0x48 /* 72 Mbps */
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static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv,
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struct ieee80211_ht_info *ht_info,
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enum ieee80211_band band)
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{
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u16 max_bit_rate = 0;
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u8 rx_chains_num = priv->hw_params.rx_chains_num;
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u8 tx_chains_num = priv->hw_params.tx_chains_num;
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ht_info->cap = 0;
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memset(ht_info->supp_mcs_set, 0, 16);
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ht_info->ht_supported = 1;
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ht_info->cap |= (u16)IEEE80211_HT_CAP_GRN_FLD;
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ht_info->cap |= (u16)IEEE80211_HT_CAP_SGI_20;
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ht_info->cap |= (u16)(IEEE80211_HT_CAP_SM_PS &
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(WLAN_HT_CAP_SM_PS_DISABLED << 2));
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max_bit_rate = MAX_BIT_RATE_20_MHZ;
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if (priv->hw_params.fat_channel & BIT(band)) {
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ht_info->cap |= (u16)IEEE80211_HT_CAP_SUP_WIDTH;
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ht_info->cap |= (u16)IEEE80211_HT_CAP_SGI_40;
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ht_info->supp_mcs_set[4] = 0x01;
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max_bit_rate = MAX_BIT_RATE_40_MHZ;
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}
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if (priv->cfg->mod_params->amsdu_size_8K)
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ht_info->cap |= (u16)IEEE80211_HT_CAP_MAX_AMSDU;
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ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF;
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ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF;
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ht_info->supp_mcs_set[0] = 0xFF;
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if (rx_chains_num >= 2)
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ht_info->supp_mcs_set[1] = 0xFF;
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if (rx_chains_num >= 3)
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ht_info->supp_mcs_set[2] = 0xFF;
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/* Highest supported Rx data rate */
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max_bit_rate *= rx_chains_num;
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ht_info->supp_mcs_set[10] = (u8)(max_bit_rate & 0x00FF);
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ht_info->supp_mcs_set[11] = (u8)((max_bit_rate & 0xFF00) >> 8);
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/* Tx MCS capabilities */
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ht_info->supp_mcs_set[12] = IEEE80211_HT_CAP_MCS_TX_DEFINED;
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if (tx_chains_num != rx_chains_num) {
|
|
ht_info->supp_mcs_set[12] |= IEEE80211_HT_CAP_MCS_TX_RX_DIFF;
|
|
ht_info->supp_mcs_set[12] |= ((tx_chains_num - 1) << 2);
|
|
}
|
|
}
|
|
|
|
static void iwlcore_init_hw_rates(struct iwl_priv *priv,
|
|
struct ieee80211_rate *rates)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < IWL_RATE_COUNT; i++) {
|
|
rates[i].bitrate = iwl_rates[i].ieee * 5;
|
|
rates[i].hw_value = i; /* Rate scaling will work on indexes */
|
|
rates[i].hw_value_short = i;
|
|
rates[i].flags = 0;
|
|
if ((i > IWL_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) {
|
|
/*
|
|
* If CCK != 1M then set short preamble rate flag.
|
|
*/
|
|
rates[i].flags |=
|
|
(iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ?
|
|
0 : IEEE80211_RATE_SHORT_PREAMBLE;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* iwlcore_init_geos - Initialize mac80211's geo/channel info based from eeprom
|
|
*/
|
|
static int iwlcore_init_geos(struct iwl_priv *priv)
|
|
{
|
|
struct iwl_channel_info *ch;
|
|
struct ieee80211_supported_band *sband;
|
|
struct ieee80211_channel *channels;
|
|
struct ieee80211_channel *geo_ch;
|
|
struct ieee80211_rate *rates;
|
|
int i = 0;
|
|
|
|
if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates ||
|
|
priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) {
|
|
IWL_DEBUG_INFO("Geography modes already initialized.\n");
|
|
set_bit(STATUS_GEO_CONFIGURED, &priv->status);
|
|
return 0;
|
|
}
|
|
|
|
channels = kzalloc(sizeof(struct ieee80211_channel) *
|
|
priv->channel_count, GFP_KERNEL);
|
|
if (!channels)
|
|
return -ENOMEM;
|
|
|
|
rates = kzalloc((sizeof(struct ieee80211_rate) * (IWL_RATE_COUNT + 1)),
|
|
GFP_KERNEL);
|
|
if (!rates) {
|
|
kfree(channels);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* 5.2GHz channels start after the 2.4GHz channels */
|
|
sband = &priv->bands[IEEE80211_BAND_5GHZ];
|
|
sband->channels = &channels[ARRAY_SIZE(iwl_eeprom_band_1)];
|
|
/* just OFDM */
|
|
sband->bitrates = &rates[IWL_FIRST_OFDM_RATE];
|
|
sband->n_bitrates = IWL_RATE_COUNT - IWL_FIRST_OFDM_RATE;
|
|
|
|
if (priv->cfg->sku & IWL_SKU_N)
|
|
iwlcore_init_ht_hw_capab(priv, &sband->ht_info,
|
|
IEEE80211_BAND_5GHZ);
|
|
|
|
sband = &priv->bands[IEEE80211_BAND_2GHZ];
|
|
sband->channels = channels;
|
|
/* OFDM & CCK */
|
|
sband->bitrates = rates;
|
|
sband->n_bitrates = IWL_RATE_COUNT;
|
|
|
|
if (priv->cfg->sku & IWL_SKU_N)
|
|
iwlcore_init_ht_hw_capab(priv, &sband->ht_info,
|
|
IEEE80211_BAND_2GHZ);
|
|
|
|
priv->ieee_channels = channels;
|
|
priv->ieee_rates = rates;
|
|
|
|
iwlcore_init_hw_rates(priv, rates);
|
|
|
|
for (i = 0; i < priv->channel_count; i++) {
|
|
ch = &priv->channel_info[i];
|
|
|
|
/* FIXME: might be removed if scan is OK */
|
|
if (!is_channel_valid(ch))
|
|
continue;
|
|
|
|
if (is_channel_a_band(ch))
|
|
sband = &priv->bands[IEEE80211_BAND_5GHZ];
|
|
else
|
|
sband = &priv->bands[IEEE80211_BAND_2GHZ];
|
|
|
|
geo_ch = &sband->channels[sband->n_channels++];
|
|
|
|
geo_ch->center_freq =
|
|
ieee80211_channel_to_frequency(ch->channel);
|
|
geo_ch->max_power = ch->max_power_avg;
|
|
geo_ch->max_antenna_gain = 0xff;
|
|
geo_ch->hw_value = ch->channel;
|
|
|
|
if (is_channel_valid(ch)) {
|
|
if (!(ch->flags & EEPROM_CHANNEL_IBSS))
|
|
geo_ch->flags |= IEEE80211_CHAN_NO_IBSS;
|
|
|
|
if (!(ch->flags & EEPROM_CHANNEL_ACTIVE))
|
|
geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN;
|
|
|
|
if (ch->flags & EEPROM_CHANNEL_RADAR)
|
|
geo_ch->flags |= IEEE80211_CHAN_RADAR;
|
|
|
|
geo_ch->flags |= ch->fat_extension_channel;
|
|
|
|
if (ch->max_power_avg > priv->tx_power_channel_lmt)
|
|
priv->tx_power_channel_lmt = ch->max_power_avg;
|
|
} else {
|
|
geo_ch->flags |= IEEE80211_CHAN_DISABLED;
|
|
}
|
|
|
|
/* Save flags for reg domain usage */
|
|
geo_ch->orig_flags = geo_ch->flags;
|
|
|
|
IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0x%X\n",
|
|
ch->channel, geo_ch->center_freq,
|
|
is_channel_a_band(ch) ? "5.2" : "2.4",
|
|
geo_ch->flags & IEEE80211_CHAN_DISABLED ?
|
|
"restricted" : "valid",
|
|
geo_ch->flags);
|
|
}
|
|
|
|
if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) &&
|
|
priv->cfg->sku & IWL_SKU_A) {
|
|
printk(KERN_INFO DRV_NAME
|
|
": Incorrectly detected BG card as ABG. Please send "
|
|
"your PCI ID 0x%04X:0x%04X to maintainer.\n",
|
|
priv->pci_dev->device, priv->pci_dev->subsystem_device);
|
|
priv->cfg->sku &= ~IWL_SKU_A;
|
|
}
|
|
|
|
printk(KERN_INFO DRV_NAME
|
|
": Tunable channels: %d 802.11bg, %d 802.11a channels\n",
|
|
priv->bands[IEEE80211_BAND_2GHZ].n_channels,
|
|
priv->bands[IEEE80211_BAND_5GHZ].n_channels);
|
|
|
|
|
|
set_bit(STATUS_GEO_CONFIGURED, &priv->status);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* iwlcore_free_geos - undo allocations in iwlcore_init_geos
|
|
*/
|
|
static void iwlcore_free_geos(struct iwl_priv *priv)
|
|
{
|
|
kfree(priv->ieee_channels);
|
|
kfree(priv->ieee_rates);
|
|
clear_bit(STATUS_GEO_CONFIGURED, &priv->status);
|
|
}
|
|
|
|
static bool is_single_rx_stream(struct iwl_priv *priv)
|
|
{
|
|
return !priv->current_ht_config.is_ht ||
|
|
((priv->current_ht_config.supp_mcs_set[1] == 0) &&
|
|
(priv->current_ht_config.supp_mcs_set[2] == 0));
|
|
}
|
|
|
|
static u8 iwl_is_channel_extension(struct iwl_priv *priv,
|
|
enum ieee80211_band band,
|
|
u16 channel, u8 extension_chan_offset)
|
|
{
|
|
const struct iwl_channel_info *ch_info;
|
|
|
|
ch_info = iwl_get_channel_info(priv, band, channel);
|
|
if (!is_channel_valid(ch_info))
|
|
return 0;
|
|
|
|
if (extension_chan_offset == IEEE80211_HT_IE_CHA_SEC_ABOVE)
|
|
return !(ch_info->fat_extension_channel &
|
|
IEEE80211_CHAN_NO_FAT_ABOVE);
|
|
else if (extension_chan_offset == IEEE80211_HT_IE_CHA_SEC_BELOW)
|
|
return !(ch_info->fat_extension_channel &
|
|
IEEE80211_CHAN_NO_FAT_BELOW);
|
|
|
|
return 0;
|
|
}
|
|
|
|
u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv,
|
|
struct ieee80211_ht_info *sta_ht_inf)
|
|
{
|
|
struct iwl_ht_info *iwl_ht_conf = &priv->current_ht_config;
|
|
|
|
if ((!iwl_ht_conf->is_ht) ||
|
|
(iwl_ht_conf->supported_chan_width != IWL_CHANNEL_WIDTH_40MHZ) ||
|
|
(iwl_ht_conf->extension_chan_offset == IEEE80211_HT_IE_CHA_SEC_NONE))
|
|
return 0;
|
|
|
|
if (sta_ht_inf) {
|
|
if ((!sta_ht_inf->ht_supported) ||
|
|
(!(sta_ht_inf->cap & IEEE80211_HT_CAP_SUP_WIDTH)))
|
|
return 0;
|
|
}
|
|
|
|
return iwl_is_channel_extension(priv, priv->band,
|
|
iwl_ht_conf->control_channel,
|
|
iwl_ht_conf->extension_chan_offset);
|
|
}
|
|
EXPORT_SYMBOL(iwl_is_fat_tx_allowed);
|
|
|
|
void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info)
|
|
{
|
|
struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
|
|
u32 val;
|
|
|
|
if (!ht_info->is_ht)
|
|
return;
|
|
|
|
/* Set up channel bandwidth: 20 MHz only, or 20/40 mixed if fat ok */
|
|
if (iwl_is_fat_tx_allowed(priv, NULL))
|
|
rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED_MSK;
|
|
else
|
|
rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK |
|
|
RXON_FLG_CHANNEL_MODE_PURE_40_MSK);
|
|
|
|
if (le16_to_cpu(rxon->channel) != ht_info->control_channel) {
|
|
IWL_DEBUG_ASSOC("control diff than current %d %d\n",
|
|
le16_to_cpu(rxon->channel),
|
|
ht_info->control_channel);
|
|
return;
|
|
}
|
|
|
|
/* Note: control channel is opposite of extension channel */
|
|
switch (ht_info->extension_chan_offset) {
|
|
case IEEE80211_HT_IE_CHA_SEC_ABOVE:
|
|
rxon->flags &= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK);
|
|
break;
|
|
case IEEE80211_HT_IE_CHA_SEC_BELOW:
|
|
rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK;
|
|
break;
|
|
case IEEE80211_HT_IE_CHA_SEC_NONE:
|
|
default:
|
|
rxon->flags &= ~RXON_FLG_CHANNEL_MODE_MIXED_MSK;
|
|
break;
|
|
}
|
|
|
|
val = ht_info->ht_protection;
|
|
|
|
rxon->flags |= cpu_to_le32(val << RXON_FLG_HT_OPERATING_MODE_POS);
|
|
|
|
iwl_set_rxon_chain(priv);
|
|
|
|
IWL_DEBUG_ASSOC("supported HT rate 0x%X 0x%X 0x%X "
|
|
"rxon flags 0x%X operation mode :0x%X "
|
|
"extension channel offset 0x%x "
|
|
"control chan %d\n",
|
|
ht_info->supp_mcs_set[0],
|
|
ht_info->supp_mcs_set[1],
|
|
ht_info->supp_mcs_set[2],
|
|
le32_to_cpu(rxon->flags), ht_info->ht_protection,
|
|
ht_info->extension_chan_offset,
|
|
ht_info->control_channel);
|
|
return;
|
|
}
|
|
EXPORT_SYMBOL(iwl_set_rxon_ht);
|
|
|
|
/*
|
|
* Determine how many receiver/antenna chains to use.
|
|
* More provides better reception via diversity. Fewer saves power.
|
|
* MIMO (dual stream) requires at least 2, but works better with 3.
|
|
* This does not determine *which* chains to use, just how many.
|
|
*/
|
|
static int iwl_get_active_rx_chain_count(struct iwl_priv *priv)
|
|
{
|
|
bool is_single = is_single_rx_stream(priv);
|
|
bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status);
|
|
|
|
/* # of Rx chains to use when expecting MIMO. */
|
|
if (is_single || (!is_cam && (priv->current_ht_config.sm_ps ==
|
|
WLAN_HT_CAP_SM_PS_STATIC)))
|
|
return 2;
|
|
else
|
|
return 3;
|
|
}
|
|
|
|
static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt)
|
|
{
|
|
int idle_cnt;
|
|
bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status);
|
|
/* # Rx chains when idling and maybe trying to save power */
|
|
switch (priv->current_ht_config.sm_ps) {
|
|
case WLAN_HT_CAP_SM_PS_STATIC:
|
|
case WLAN_HT_CAP_SM_PS_DYNAMIC:
|
|
idle_cnt = (is_cam) ? 2 : 1;
|
|
break;
|
|
case WLAN_HT_CAP_SM_PS_DISABLED:
|
|
idle_cnt = (is_cam) ? active_cnt : 1;
|
|
break;
|
|
case WLAN_HT_CAP_SM_PS_INVALID:
|
|
default:
|
|
IWL_ERROR("invalide mimo ps mode %d\n",
|
|
priv->current_ht_config.sm_ps);
|
|
WARN_ON(1);
|
|
idle_cnt = -1;
|
|
break;
|
|
}
|
|
return idle_cnt;
|
|
}
|
|
|
|
/* up to 4 chains */
|
|
static u8 iwl_count_chain_bitmap(u32 chain_bitmap)
|
|
{
|
|
u8 res;
|
|
res = (chain_bitmap & BIT(0)) >> 0;
|
|
res += (chain_bitmap & BIT(1)) >> 1;
|
|
res += (chain_bitmap & BIT(2)) >> 2;
|
|
res += (chain_bitmap & BIT(4)) >> 4;
|
|
return res;
|
|
}
|
|
|
|
/**
|
|
* iwl_set_rxon_chain - Set up Rx chain usage in "staging" RXON image
|
|
*
|
|
* Selects how many and which Rx receivers/antennas/chains to use.
|
|
* This should not be used for scan command ... it puts data in wrong place.
|
|
*/
|
|
void iwl_set_rxon_chain(struct iwl_priv *priv)
|
|
{
|
|
bool is_single = is_single_rx_stream(priv);
|
|
bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status);
|
|
u8 idle_rx_cnt, active_rx_cnt, valid_rx_cnt;
|
|
u32 active_chains;
|
|
u16 rx_chain;
|
|
|
|
/* Tell uCode which antennas are actually connected.
|
|
* Before first association, we assume all antennas are connected.
|
|
* Just after first association, iwl_chain_noise_calibration()
|
|
* checks which antennas actually *are* connected. */
|
|
if (priv->chain_noise_data.active_chains)
|
|
active_chains = priv->chain_noise_data.active_chains;
|
|
else
|
|
active_chains = priv->hw_params.valid_rx_ant;
|
|
|
|
rx_chain = active_chains << RXON_RX_CHAIN_VALID_POS;
|
|
|
|
/* How many receivers should we use? */
|
|
active_rx_cnt = iwl_get_active_rx_chain_count(priv);
|
|
idle_rx_cnt = iwl_get_idle_rx_chain_count(priv, active_rx_cnt);
|
|
|
|
|
|
/* correct rx chain count according hw settings
|
|
* and chain noise calibration
|
|
*/
|
|
valid_rx_cnt = iwl_count_chain_bitmap(active_chains);
|
|
if (valid_rx_cnt < active_rx_cnt)
|
|
active_rx_cnt = valid_rx_cnt;
|
|
|
|
if (valid_rx_cnt < idle_rx_cnt)
|
|
idle_rx_cnt = valid_rx_cnt;
|
|
|
|
rx_chain |= active_rx_cnt << RXON_RX_CHAIN_MIMO_CNT_POS;
|
|
rx_chain |= idle_rx_cnt << RXON_RX_CHAIN_CNT_POS;
|
|
|
|
priv->staging_rxon.rx_chain = cpu_to_le16(rx_chain);
|
|
|
|
if (!is_single && (active_rx_cnt >= 2) && is_cam)
|
|
priv->staging_rxon.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK;
|
|
else
|
|
priv->staging_rxon.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK;
|
|
|
|
IWL_DEBUG_ASSOC("rx_chain=0x%X active=%d idle=%d\n",
|
|
priv->staging_rxon.rx_chain,
|
|
active_rx_cnt, idle_rx_cnt);
|
|
|
|
WARN_ON(active_rx_cnt == 0 || idle_rx_cnt == 0 ||
|
|
active_rx_cnt < idle_rx_cnt);
|
|
}
|
|
EXPORT_SYMBOL(iwl_set_rxon_chain);
|
|
|
|
/**
|
|
* iwl_set_rxon_channel - Set the phymode and channel values in staging RXON
|
|
* @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz
|
|
* @channel: Any channel valid for the requested phymode
|
|
|
|
* In addition to setting the staging RXON, priv->phymode is also set.
|
|
*
|
|
* NOTE: Does not commit to the hardware; it sets appropriate bit fields
|
|
* in the staging RXON flag structure based on the phymode
|
|
*/
|
|
int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch)
|
|
{
|
|
enum ieee80211_band band = ch->band;
|
|
u16 channel = ieee80211_frequency_to_channel(ch->center_freq);
|
|
|
|
if (!iwl_get_channel_info(priv, band, channel)) {
|
|
IWL_DEBUG_INFO("Could not set channel to %d [%d]\n",
|
|
channel, band);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if ((le16_to_cpu(priv->staging_rxon.channel) == channel) &&
|
|
(priv->band == band))
|
|
return 0;
|
|
|
|
priv->staging_rxon.channel = cpu_to_le16(channel);
|
|
if (band == IEEE80211_BAND_5GHZ)
|
|
priv->staging_rxon.flags &= ~RXON_FLG_BAND_24G_MSK;
|
|
else
|
|
priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
|
|
|
|
priv->band = band;
|
|
|
|
IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel, band);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(iwl_set_rxon_channel);
|
|
|
|
int iwl_setup_mac(struct iwl_priv *priv)
|
|
{
|
|
int ret;
|
|
struct ieee80211_hw *hw = priv->hw;
|
|
hw->rate_control_algorithm = "iwl-agn-rs";
|
|
|
|
/* Tell mac80211 our characteristics */
|
|
hw->flags = IEEE80211_HW_SIGNAL_DBM |
|
|
IEEE80211_HW_NOISE_DBM;
|
|
hw->wiphy->interface_modes =
|
|
BIT(NL80211_IFTYPE_AP) |
|
|
BIT(NL80211_IFTYPE_STATION) |
|
|
BIT(NL80211_IFTYPE_ADHOC);
|
|
/* Default value; 4 EDCA QOS priorities */
|
|
hw->queues = 4;
|
|
/* queues to support 11n aggregation */
|
|
if (priv->cfg->sku & IWL_SKU_N)
|
|
hw->ampdu_queues = priv->cfg->mod_params->num_of_ampdu_queues;
|
|
|
|
hw->conf.beacon_int = 100;
|
|
hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
|
|
|
|
if (priv->bands[IEEE80211_BAND_2GHZ].n_channels)
|
|
priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
|
|
&priv->bands[IEEE80211_BAND_2GHZ];
|
|
if (priv->bands[IEEE80211_BAND_5GHZ].n_channels)
|
|
priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
|
|
&priv->bands[IEEE80211_BAND_5GHZ];
|
|
|
|
ret = ieee80211_register_hw(priv->hw);
|
|
if (ret) {
|
|
IWL_ERROR("Failed to register hw (error %d)\n", ret);
|
|
return ret;
|
|
}
|
|
priv->mac80211_registered = 1;
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(iwl_setup_mac);
|
|
|
|
int iwl_set_hw_params(struct iwl_priv *priv)
|
|
{
|
|
priv->hw_params.sw_crypto = priv->cfg->mod_params->sw_crypto;
|
|
priv->hw_params.max_rxq_size = RX_QUEUE_SIZE;
|
|
priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG;
|
|
if (priv->cfg->mod_params->amsdu_size_8K)
|
|
priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_8K;
|
|
else
|
|
priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_4K;
|
|
priv->hw_params.max_pkt_size = priv->hw_params.rx_buf_size - 256;
|
|
|
|
if (priv->cfg->mod_params->disable_11n)
|
|
priv->cfg->sku &= ~IWL_SKU_N;
|
|
|
|
/* Device-specific setup */
|
|
return priv->cfg->ops->lib->set_hw_params(priv);
|
|
}
|
|
EXPORT_SYMBOL(iwl_set_hw_params);
|
|
|
|
int iwl_init_drv(struct iwl_priv *priv)
|
|
{
|
|
int ret;
|
|
|
|
priv->retry_rate = 1;
|
|
priv->ibss_beacon = NULL;
|
|
|
|
spin_lock_init(&priv->lock);
|
|
spin_lock_init(&priv->power_data.lock);
|
|
spin_lock_init(&priv->sta_lock);
|
|
spin_lock_init(&priv->hcmd_lock);
|
|
|
|
INIT_LIST_HEAD(&priv->free_frames);
|
|
|
|
mutex_init(&priv->mutex);
|
|
|
|
/* Clear the driver's (not device's) station table */
|
|
iwl_clear_stations_table(priv);
|
|
|
|
priv->data_retry_limit = -1;
|
|
priv->ieee_channels = NULL;
|
|
priv->ieee_rates = NULL;
|
|
priv->band = IEEE80211_BAND_2GHZ;
|
|
|
|
priv->iw_mode = NL80211_IFTYPE_STATION;
|
|
|
|
priv->use_ant_b_for_management_frame = 1; /* start with ant B */
|
|
priv->current_ht_config.sm_ps = WLAN_HT_CAP_SM_PS_DISABLED;
|
|
|
|
/* Choose which receivers/antennas to use */
|
|
iwl_set_rxon_chain(priv);
|
|
iwl_init_scan_params(priv);
|
|
|
|
if (priv->cfg->mod_params->enable_qos)
|
|
priv->qos_data.qos_enable = 1;
|
|
|
|
iwl_reset_qos(priv);
|
|
|
|
priv->qos_data.qos_active = 0;
|
|
priv->qos_data.qos_cap.val = 0;
|
|
|
|
priv->rates_mask = IWL_RATES_MASK;
|
|
/* If power management is turned on, default to AC mode */
|
|
priv->power_mode = IWL_POWER_AC;
|
|
priv->tx_power_user_lmt = IWL_TX_POWER_TARGET_POWER_MAX;
|
|
|
|
ret = iwl_init_channel_map(priv);
|
|
if (ret) {
|
|
IWL_ERROR("initializing regulatory failed: %d\n", ret);
|
|
goto err;
|
|
}
|
|
|
|
ret = iwlcore_init_geos(priv);
|
|
if (ret) {
|
|
IWL_ERROR("initializing geos failed: %d\n", ret);
|
|
goto err_free_channel_map;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_free_channel_map:
|
|
iwl_free_channel_map(priv);
|
|
err:
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(iwl_init_drv);
|
|
|
|
int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force)
|
|
{
|
|
int ret = 0;
|
|
if (tx_power < IWL_TX_POWER_TARGET_POWER_MIN) {
|
|
IWL_WARNING("Requested user TXPOWER %d below limit.\n",
|
|
priv->tx_power_user_lmt);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (tx_power > IWL_TX_POWER_TARGET_POWER_MAX) {
|
|
IWL_WARNING("Requested user TXPOWER %d above limit.\n",
|
|
priv->tx_power_user_lmt);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (priv->tx_power_user_lmt != tx_power)
|
|
force = true;
|
|
|
|
priv->tx_power_user_lmt = tx_power;
|
|
|
|
if (force && priv->cfg->ops->lib->send_tx_power)
|
|
ret = priv->cfg->ops->lib->send_tx_power(priv);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(iwl_set_tx_power);
|
|
|
|
void iwl_uninit_drv(struct iwl_priv *priv)
|
|
{
|
|
iwl_calib_free_results(priv);
|
|
iwlcore_free_geos(priv);
|
|
iwl_free_channel_map(priv);
|
|
kfree(priv->scan);
|
|
}
|
|
EXPORT_SYMBOL(iwl_uninit_drv);
|
|
|
|
int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags)
|
|
{
|
|
u32 stat_flags = 0;
|
|
struct iwl_host_cmd cmd = {
|
|
.id = REPLY_STATISTICS_CMD,
|
|
.meta.flags = flags,
|
|
.len = sizeof(stat_flags),
|
|
.data = (u8 *) &stat_flags,
|
|
};
|
|
return iwl_send_cmd(priv, &cmd);
|
|
}
|
|
EXPORT_SYMBOL(iwl_send_statistics_request);
|
|
|
|
/**
|
|
* iwl_verify_inst_sparse - verify runtime uCode image in card vs. host,
|
|
* using sample data 100 bytes apart. If these sample points are good,
|
|
* it's a pretty good bet that everything between them is good, too.
|
|
*/
|
|
static int iwlcore_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len)
|
|
{
|
|
u32 val;
|
|
int ret = 0;
|
|
u32 errcnt = 0;
|
|
u32 i;
|
|
|
|
IWL_DEBUG_INFO("ucode inst image size is %u\n", len);
|
|
|
|
ret = iwl_grab_nic_access(priv);
|
|
if (ret)
|
|
return ret;
|
|
|
|
for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
|
|
/* read data comes through single port, auto-incr addr */
|
|
/* NOTE: Use the debugless read so we don't flood kernel log
|
|
* if IWL_DL_IO is set */
|
|
iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
|
|
i + RTC_INST_LOWER_BOUND);
|
|
val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
|
|
if (val != le32_to_cpu(*image)) {
|
|
ret = -EIO;
|
|
errcnt++;
|
|
if (errcnt >= 3)
|
|
break;
|
|
}
|
|
}
|
|
|
|
iwl_release_nic_access(priv);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* iwlcore_verify_inst_full - verify runtime uCode image in card vs. host,
|
|
* looking at all data.
|
|
*/
|
|
static int iwl_verify_inst_full(struct iwl_priv *priv, __le32 *image,
|
|
u32 len)
|
|
{
|
|
u32 val;
|
|
u32 save_len = len;
|
|
int ret = 0;
|
|
u32 errcnt;
|
|
|
|
IWL_DEBUG_INFO("ucode inst image size is %u\n", len);
|
|
|
|
ret = iwl_grab_nic_access(priv);
|
|
if (ret)
|
|
return ret;
|
|
|
|
iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, RTC_INST_LOWER_BOUND);
|
|
|
|
errcnt = 0;
|
|
for (; len > 0; len -= sizeof(u32), image++) {
|
|
/* read data comes through single port, auto-incr addr */
|
|
/* NOTE: Use the debugless read so we don't flood kernel log
|
|
* if IWL_DL_IO is set */
|
|
val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
|
|
if (val != le32_to_cpu(*image)) {
|
|
IWL_ERROR("uCode INST section is invalid at "
|
|
"offset 0x%x, is 0x%x, s/b 0x%x\n",
|
|
save_len - len, val, le32_to_cpu(*image));
|
|
ret = -EIO;
|
|
errcnt++;
|
|
if (errcnt >= 20)
|
|
break;
|
|
}
|
|
}
|
|
|
|
iwl_release_nic_access(priv);
|
|
|
|
if (!errcnt)
|
|
IWL_DEBUG_INFO
|
|
("ucode image in INSTRUCTION memory is good\n");
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* iwl_verify_ucode - determine which instruction image is in SRAM,
|
|
* and verify its contents
|
|
*/
|
|
int iwl_verify_ucode(struct iwl_priv *priv)
|
|
{
|
|
__le32 *image;
|
|
u32 len;
|
|
int ret;
|
|
|
|
/* Try bootstrap */
|
|
image = (__le32 *)priv->ucode_boot.v_addr;
|
|
len = priv->ucode_boot.len;
|
|
ret = iwlcore_verify_inst_sparse(priv, image, len);
|
|
if (!ret) {
|
|
IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
|
|
return 0;
|
|
}
|
|
|
|
/* Try initialize */
|
|
image = (__le32 *)priv->ucode_init.v_addr;
|
|
len = priv->ucode_init.len;
|
|
ret = iwlcore_verify_inst_sparse(priv, image, len);
|
|
if (!ret) {
|
|
IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
|
|
return 0;
|
|
}
|
|
|
|
/* Try runtime/protocol */
|
|
image = (__le32 *)priv->ucode_code.v_addr;
|
|
len = priv->ucode_code.len;
|
|
ret = iwlcore_verify_inst_sparse(priv, image, len);
|
|
if (!ret) {
|
|
IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
|
|
return 0;
|
|
}
|
|
|
|
IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
|
|
|
|
/* Since nothing seems to match, show first several data entries in
|
|
* instruction SRAM, so maybe visual inspection will give a clue.
|
|
* Selection of bootstrap image (vs. other images) is arbitrary. */
|
|
image = (__le32 *)priv->ucode_boot.v_addr;
|
|
len = priv->ucode_boot.len;
|
|
ret = iwl_verify_inst_full(priv, image, len);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(iwl_verify_ucode);
|
|
|
|
static const char *desc_lookup(int i)
|
|
{
|
|
switch (i) {
|
|
case 1:
|
|
return "FAIL";
|
|
case 2:
|
|
return "BAD_PARAM";
|
|
case 3:
|
|
return "BAD_CHECKSUM";
|
|
case 4:
|
|
return "NMI_INTERRUPT";
|
|
case 5:
|
|
return "SYSASSERT";
|
|
case 6:
|
|
return "FATAL_ERROR";
|
|
}
|
|
|
|
return "UNKNOWN";
|
|
}
|
|
|
|
#define ERROR_START_OFFSET (1 * sizeof(u32))
|
|
#define ERROR_ELEM_SIZE (7 * sizeof(u32))
|
|
|
|
void iwl_dump_nic_error_log(struct iwl_priv *priv)
|
|
{
|
|
u32 data2, line;
|
|
u32 desc, time, count, base, data1;
|
|
u32 blink1, blink2, ilink1, ilink2;
|
|
int ret;
|
|
|
|
if (priv->ucode_type == UCODE_INIT)
|
|
base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr);
|
|
else
|
|
base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
|
|
|
|
if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
|
|
IWL_ERROR("Not valid error log pointer 0x%08X\n", base);
|
|
return;
|
|
}
|
|
|
|
ret = iwl_grab_nic_access(priv);
|
|
if (ret) {
|
|
IWL_WARNING("Can not read from adapter at this time.\n");
|
|
return;
|
|
}
|
|
|
|
count = iwl_read_targ_mem(priv, base);
|
|
|
|
if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
|
|
IWL_ERROR("Start IWL Error Log Dump:\n");
|
|
IWL_ERROR("Status: 0x%08lX, count: %d\n", priv->status, count);
|
|
}
|
|
|
|
desc = iwl_read_targ_mem(priv, base + 1 * sizeof(u32));
|
|
blink1 = iwl_read_targ_mem(priv, base + 3 * sizeof(u32));
|
|
blink2 = iwl_read_targ_mem(priv, base + 4 * sizeof(u32));
|
|
ilink1 = iwl_read_targ_mem(priv, base + 5 * sizeof(u32));
|
|
ilink2 = iwl_read_targ_mem(priv, base + 6 * sizeof(u32));
|
|
data1 = iwl_read_targ_mem(priv, base + 7 * sizeof(u32));
|
|
data2 = iwl_read_targ_mem(priv, base + 8 * sizeof(u32));
|
|
line = iwl_read_targ_mem(priv, base + 9 * sizeof(u32));
|
|
time = iwl_read_targ_mem(priv, base + 11 * sizeof(u32));
|
|
|
|
IWL_ERROR("Desc Time "
|
|
"data1 data2 line\n");
|
|
IWL_ERROR("%-13s (#%d) %010u 0x%08X 0x%08X %u\n",
|
|
desc_lookup(desc), desc, time, data1, data2, line);
|
|
IWL_ERROR("blink1 blink2 ilink1 ilink2\n");
|
|
IWL_ERROR("0x%05X 0x%05X 0x%05X 0x%05X\n", blink1, blink2,
|
|
ilink1, ilink2);
|
|
|
|
iwl_release_nic_access(priv);
|
|
}
|
|
EXPORT_SYMBOL(iwl_dump_nic_error_log);
|
|
|
|
#define EVENT_START_OFFSET (4 * sizeof(u32))
|
|
|
|
/**
|
|
* iwl_print_event_log - Dump error event log to syslog
|
|
*
|
|
* NOTE: Must be called with iwl_grab_nic_access() already obtained!
|
|
*/
|
|
static void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
|
|
u32 num_events, u32 mode)
|
|
{
|
|
u32 i;
|
|
u32 base; /* SRAM byte address of event log header */
|
|
u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */
|
|
u32 ptr; /* SRAM byte address of log data */
|
|
u32 ev, time, data; /* event log data */
|
|
|
|
if (num_events == 0)
|
|
return;
|
|
if (priv->ucode_type == UCODE_INIT)
|
|
base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
|
|
else
|
|
base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
|
|
|
|
if (mode == 0)
|
|
event_size = 2 * sizeof(u32);
|
|
else
|
|
event_size = 3 * sizeof(u32);
|
|
|
|
ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
|
|
|
|
/* "time" is actually "data" for mode 0 (no timestamp).
|
|
* place event id # at far right for easier visual parsing. */
|
|
for (i = 0; i < num_events; i++) {
|
|
ev = iwl_read_targ_mem(priv, ptr);
|
|
ptr += sizeof(u32);
|
|
time = iwl_read_targ_mem(priv, ptr);
|
|
ptr += sizeof(u32);
|
|
if (mode == 0) {
|
|
/* data, ev */
|
|
IWL_ERROR("EVT_LOG:0x%08x:%04u\n", time, ev);
|
|
} else {
|
|
data = iwl_read_targ_mem(priv, ptr);
|
|
ptr += sizeof(u32);
|
|
IWL_ERROR("EVT_LOGT:%010u:0x%08x:%04u\n",
|
|
time, data, ev);
|
|
}
|
|
}
|
|
}
|
|
|
|
void iwl_dump_nic_event_log(struct iwl_priv *priv)
|
|
{
|
|
int ret;
|
|
u32 base; /* SRAM byte address of event log header */
|
|
u32 capacity; /* event log capacity in # entries */
|
|
u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
|
|
u32 num_wraps; /* # times uCode wrapped to top of log */
|
|
u32 next_entry; /* index of next entry to be written by uCode */
|
|
u32 size; /* # entries that we'll print */
|
|
|
|
if (priv->ucode_type == UCODE_INIT)
|
|
base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
|
|
else
|
|
base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
|
|
|
|
if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
|
|
IWL_ERROR("Invalid event log pointer 0x%08X\n", base);
|
|
return;
|
|
}
|
|
|
|
ret = iwl_grab_nic_access(priv);
|
|
if (ret) {
|
|
IWL_WARNING("Can not read from adapter at this time.\n");
|
|
return;
|
|
}
|
|
|
|
/* event log header */
|
|
capacity = iwl_read_targ_mem(priv, base);
|
|
mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32)));
|
|
num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32)));
|
|
next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32)));
|
|
|
|
size = num_wraps ? capacity : next_entry;
|
|
|
|
/* bail out if nothing in log */
|
|
if (size == 0) {
|
|
IWL_ERROR("Start IWL Event Log Dump: nothing in log\n");
|
|
iwl_release_nic_access(priv);
|
|
return;
|
|
}
|
|
|
|
IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n",
|
|
size, num_wraps);
|
|
|
|
/* if uCode has wrapped back to top of log, start at the oldest entry,
|
|
* i.e the next one that uCode would fill. */
|
|
if (num_wraps)
|
|
iwl_print_event_log(priv, next_entry,
|
|
capacity - next_entry, mode);
|
|
/* (then/else) start at top of log */
|
|
iwl_print_event_log(priv, 0, next_entry, mode);
|
|
|
|
iwl_release_nic_access(priv);
|
|
}
|
|
EXPORT_SYMBOL(iwl_dump_nic_event_log);
|
|
|
|
void iwl_rf_kill_ct_config(struct iwl_priv *priv)
|
|
{
|
|
struct iwl_ct_kill_config cmd;
|
|
unsigned long flags;
|
|
int ret = 0;
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
|
|
CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
cmd.critical_temperature_R =
|
|
cpu_to_le32(priv->hw_params.ct_kill_threshold);
|
|
|
|
ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD,
|
|
sizeof(cmd), &cmd);
|
|
if (ret)
|
|
IWL_ERROR("REPLY_CT_KILL_CONFIG_CMD failed\n");
|
|
else
|
|
IWL_DEBUG_INFO("REPLY_CT_KILL_CONFIG_CMD succeeded, "
|
|
"critical temperature is %d\n",
|
|
cmd.critical_temperature_R);
|
|
}
|
|
EXPORT_SYMBOL(iwl_rf_kill_ct_config);
|
|
|
|
/*
|
|
* CARD_STATE_CMD
|
|
*
|
|
* Use: Sets the device's internal card state to enable, disable, or halt
|
|
*
|
|
* When in the 'enable' state the card operates as normal.
|
|
* When in the 'disable' state, the card enters into a low power mode.
|
|
* When in the 'halt' state, the card is shut down and must be fully
|
|
* restarted to come back on.
|
|
*/
|
|
static int iwl_send_card_state(struct iwl_priv *priv, u32 flags, u8 meta_flag)
|
|
{
|
|
struct iwl_host_cmd cmd = {
|
|
.id = REPLY_CARD_STATE_CMD,
|
|
.len = sizeof(u32),
|
|
.data = &flags,
|
|
.meta.flags = meta_flag,
|
|
};
|
|
|
|
return iwl_send_cmd(priv, &cmd);
|
|
}
|
|
|
|
void iwl_radio_kill_sw_disable_radio(struct iwl_priv *priv)
|
|
{
|
|
unsigned long flags;
|
|
|
|
if (test_bit(STATUS_RF_KILL_SW, &priv->status))
|
|
return;
|
|
|
|
IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO OFF\n");
|
|
|
|
iwl_scan_cancel(priv);
|
|
/* FIXME: This is a workaround for AP */
|
|
if (priv->iw_mode != NL80211_IFTYPE_AP) {
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
|
|
CSR_UCODE_SW_BIT_RFKILL);
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
/* call the host command only if no hw rf-kill set */
|
|
if (!test_bit(STATUS_RF_KILL_HW, &priv->status) &&
|
|
iwl_is_ready(priv))
|
|
iwl_send_card_state(priv,
|
|
CARD_STATE_CMD_DISABLE, 0);
|
|
set_bit(STATUS_RF_KILL_SW, &priv->status);
|
|
/* make sure mac80211 stop sending Tx frame */
|
|
if (priv->mac80211_registered)
|
|
ieee80211_stop_queues(priv->hw);
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(iwl_radio_kill_sw_disable_radio);
|
|
|
|
int iwl_radio_kill_sw_enable_radio(struct iwl_priv *priv)
|
|
{
|
|
unsigned long flags;
|
|
|
|
if (!test_bit(STATUS_RF_KILL_SW, &priv->status))
|
|
return 0;
|
|
|
|
IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO ON\n");
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
|
|
|
|
/* If the driver is up it will receive CARD_STATE_NOTIFICATION
|
|
* notification where it will clear SW rfkill status.
|
|
* Setting it here would break the handler. Only if the
|
|
* interface is down we can set here since we don't
|
|
* receive any further notification.
|
|
*/
|
|
if (!priv->is_open)
|
|
clear_bit(STATUS_RF_KILL_SW, &priv->status);
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
/* wake up ucode */
|
|
msleep(10);
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
iwl_read32(priv, CSR_UCODE_DRV_GP1);
|
|
if (!iwl_grab_nic_access(priv))
|
|
iwl_release_nic_access(priv);
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
|
|
IWL_DEBUG_RF_KILL("Can not turn radio back on - "
|
|
"disabled by HW switch\n");
|
|
return 0;
|
|
}
|
|
|
|
/* If the driver is already loaded, it will receive
|
|
* CARD_STATE_NOTIFICATION notifications and the handler will
|
|
* call restart to reload the driver.
|
|
*/
|
|
return 1;
|
|
}
|
|
EXPORT_SYMBOL(iwl_radio_kill_sw_enable_radio);
|