iwl-agn.c 127.4 KB
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/******************************************************************************
 *
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 * Copyright(c) 2003 - 2010 Intel Corporation. All rights reserved.
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 *
 * Portions of this file are derived from the ipw3945 project, as well
 * as portions of the ieee80211 subsystem header files.
 *
 * 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.
 *
 * 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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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

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#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/pci.h>
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#include <linux/pci-aspm.h>
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#include <linux/slab.h>
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#include <linux/dma-mapping.h>
#include <linux/delay.h>
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#include <linux/sched.h>
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#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/wireless.h>
#include <linux/firmware.h>
#include <linux/etherdevice.h>
#include <linux/if_arp.h>

#include <net/mac80211.h>

#include <asm/div64.h>

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#define DRV_NAME        "iwlagn"

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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-helpers.h"
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#include "iwl-sta.h"
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#include "iwl-agn-calib.h"
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#include "iwl-agn.h"
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#include "iwl-agn-led.h"
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/******************************************************************************
 *
 * module boiler plate
 *
 ******************************************************************************/

/*
 * module name, copyright, version, etc.
 */
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#define DRV_DESCRIPTION	"Intel(R) Wireless WiFi Link AGN driver for Linux"
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#ifdef CONFIG_IWLWIFI_DEBUG
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#define VD "d"
#else
#define VD
#endif

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#define DRV_VERSION     IWLWIFI_VERSION VD
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MODULE_DESCRIPTION(DRV_DESCRIPTION);
MODULE_VERSION(DRV_VERSION);
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MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
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MODULE_LICENSE("GPL");

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static int iwlagn_ant_coupling;
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static bool iwlagn_bt_ch_announce = 1;
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void iwl_update_chain_flags(struct iwl_priv *priv)
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{
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	struct iwl_rxon_context *ctx;
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	if (priv->cfg->ops->hcmd->set_rxon_chain) {
		for_each_context(priv, ctx) {
			priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
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			if (ctx->active.rx_chain != ctx->staging.rx_chain)
				iwlcore_commit_rxon(priv, ctx);
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		}
	}
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}

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static void iwl_clear_free_frames(struct iwl_priv *priv)
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{
	struct list_head *element;

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	IWL_DEBUG_INFO(priv, "%d frames on pre-allocated heap on clear.\n",
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		       priv->frames_count);

	while (!list_empty(&priv->free_frames)) {
		element = priv->free_frames.next;
		list_del(element);
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		kfree(list_entry(element, struct iwl_frame, list));
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		priv->frames_count--;
	}

	if (priv->frames_count) {
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		IWL_WARN(priv, "%d frames still in use.  Did we lose one?\n",
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			    priv->frames_count);
		priv->frames_count = 0;
	}
}

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static struct iwl_frame *iwl_get_free_frame(struct iwl_priv *priv)
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{
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	struct iwl_frame *frame;
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	struct list_head *element;
	if (list_empty(&priv->free_frames)) {
		frame = kzalloc(sizeof(*frame), GFP_KERNEL);
		if (!frame) {
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			IWL_ERR(priv, "Could not allocate frame!\n");
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			return NULL;
		}

		priv->frames_count++;
		return frame;
	}

	element = priv->free_frames.next;
	list_del(element);
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	return list_entry(element, struct iwl_frame, list);
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}

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static void iwl_free_frame(struct iwl_priv *priv, struct iwl_frame *frame)
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{
	memset(frame, 0, sizeof(*frame));
	list_add(&frame->list, &priv->free_frames);
}

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static u32 iwl_fill_beacon_frame(struct iwl_priv *priv,
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				 struct ieee80211_hdr *hdr,
				 int left)
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{
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	lockdep_assert_held(&priv->mutex);

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	if (!priv->beacon_skb)
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		return 0;

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	if (priv->beacon_skb->len > left)
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		return 0;

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	memcpy(hdr, priv->beacon_skb->data, priv->beacon_skb->len);
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	return priv->beacon_skb->len;
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}

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/* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
static void iwl_set_beacon_tim(struct iwl_priv *priv,
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			       struct iwl_tx_beacon_cmd *tx_beacon_cmd,
			       u8 *beacon, u32 frame_size)
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{
	u16 tim_idx;
	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon;

	/*
	 * The index is relative to frame start but we start looking at the
	 * variable-length part of the beacon.
	 */
	tim_idx = mgmt->u.beacon.variable - beacon;

	/* Parse variable-length elements of beacon to find WLAN_EID_TIM */
	while ((tim_idx < (frame_size - 2)) &&
			(beacon[tim_idx] != WLAN_EID_TIM))
		tim_idx += beacon[tim_idx+1] + 2;

	/* If TIM field was found, set variables */
	if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) {
		tx_beacon_cmd->tim_idx = cpu_to_le16(tim_idx);
		tx_beacon_cmd->tim_size = beacon[tim_idx+1];
	} else
		IWL_WARN(priv, "Unable to find TIM Element in beacon\n");
}

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static unsigned int iwl_hw_get_beacon_cmd(struct iwl_priv *priv,
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				       struct iwl_frame *frame)
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{
	struct iwl_tx_beacon_cmd *tx_beacon_cmd;
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	u32 frame_size;
	u32 rate_flags;
	u32 rate;
	/*
	 * We have to set up the TX command, the TX Beacon command, and the
	 * beacon contents.
	 */
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	lockdep_assert_held(&priv->mutex);

	if (!priv->beacon_ctx) {
		IWL_ERR(priv, "trying to build beacon w/o beacon context!\n");
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		return 0;
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	}

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	/* Initialize memory */
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	tx_beacon_cmd = &frame->u.beacon;
	memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd));

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	/* Set up TX beacon contents */
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	frame_size = iwl_fill_beacon_frame(priv, tx_beacon_cmd->frame,
				sizeof(frame->u) - sizeof(*tx_beacon_cmd));
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	if (WARN_ON_ONCE(frame_size > MAX_MPDU_SIZE))
		return 0;
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	if (!frame_size)
		return 0;
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	/* Set up TX command fields */
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	tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
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	tx_beacon_cmd->tx.sta_id = priv->beacon_ctx->bcast_sta_id;
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	tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
	tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK |
		TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK;
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	/* Set up TX beacon command fields */
	iwl_set_beacon_tim(priv, tx_beacon_cmd, (u8 *)tx_beacon_cmd->frame,
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			   frame_size);
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	/* Set up packet rate and flags */
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	rate = iwl_rate_get_lowest_plcp(priv, priv->beacon_ctx);
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	priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant,
					      priv->hw_params.valid_tx_ant);
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	rate_flags = iwl_ant_idx_to_flags(priv->mgmt_tx_ant);
	if ((rate >= IWL_FIRST_CCK_RATE) && (rate <= IWL_LAST_CCK_RATE))
		rate_flags |= RATE_MCS_CCK_MSK;
	tx_beacon_cmd->tx.rate_n_flags = iwl_hw_set_rate_n_flags(rate,
			rate_flags);
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	return sizeof(*tx_beacon_cmd) + frame_size;
}
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int iwlagn_send_beacon_cmd(struct iwl_priv *priv)
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{
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	struct iwl_frame *frame;
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	unsigned int frame_size;
	int rc;

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	frame = iwl_get_free_frame(priv);
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	if (!frame) {
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		IWL_ERR(priv, "Could not obtain free frame buffer for beacon "
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			  "command.\n");
		return -ENOMEM;
	}

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	frame_size = iwl_hw_get_beacon_cmd(priv, frame);
	if (!frame_size) {
		IWL_ERR(priv, "Error configuring the beacon command\n");
		iwl_free_frame(priv, frame);
		return -EINVAL;
	}
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	rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
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			      &frame->u.cmd[0]);

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	iwl_free_frame(priv, frame);
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	return rc;
}

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static inline dma_addr_t iwl_tfd_tb_get_addr(struct iwl_tfd *tfd, u8 idx)
{
	struct iwl_tfd_tb *tb = &tfd->tbs[idx];

	dma_addr_t addr = get_unaligned_le32(&tb->lo);
	if (sizeof(dma_addr_t) > sizeof(u32))
		addr |=
		((dma_addr_t)(le16_to_cpu(tb->hi_n_len) & 0xF) << 16) << 16;

	return addr;
}

static inline u16 iwl_tfd_tb_get_len(struct iwl_tfd *tfd, u8 idx)
{
	struct iwl_tfd_tb *tb = &tfd->tbs[idx];

	return le16_to_cpu(tb->hi_n_len) >> 4;
}

static inline void iwl_tfd_set_tb(struct iwl_tfd *tfd, u8 idx,
				  dma_addr_t addr, u16 len)
{
	struct iwl_tfd_tb *tb = &tfd->tbs[idx];
	u16 hi_n_len = len << 4;

	put_unaligned_le32(addr, &tb->lo);
	if (sizeof(dma_addr_t) > sizeof(u32))
		hi_n_len |= ((addr >> 16) >> 16) & 0xF;

	tb->hi_n_len = cpu_to_le16(hi_n_len);

	tfd->num_tbs = idx + 1;
}

static inline u8 iwl_tfd_get_num_tbs(struct iwl_tfd *tfd)
{
	return tfd->num_tbs & 0x1f;
}

/**
 * iwl_hw_txq_free_tfd - Free all chunks referenced by TFD [txq->q.read_ptr]
 * @priv - driver private data
 * @txq - tx queue
 *
 * Does NOT advance any TFD circular buffer read/write indexes
 * Does NOT free the TFD itself (which is within circular buffer)
 */
void iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
{
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	struct iwl_tfd *tfd_tmp = (struct iwl_tfd *)txq->tfds;
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	struct iwl_tfd *tfd;
	struct pci_dev *dev = priv->pci_dev;
	int index = txq->q.read_ptr;
	int i;
	int num_tbs;

	tfd = &tfd_tmp[index];

	/* Sanity check on number of chunks */
	num_tbs = iwl_tfd_get_num_tbs(tfd);

	if (num_tbs >= IWL_NUM_OF_TBS) {
		IWL_ERR(priv, "Too many chunks: %i\n", num_tbs);
		/* @todo issue fatal error, it is quite serious situation */
		return;
	}

	/* Unmap tx_cmd */
	if (num_tbs)
		pci_unmap_single(dev,
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				dma_unmap_addr(&txq->meta[index], mapping),
				dma_unmap_len(&txq->meta[index], len),
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				PCI_DMA_BIDIRECTIONAL);
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	/* Unmap chunks, if any. */
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	for (i = 1; i < num_tbs; i++)
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		pci_unmap_single(dev, iwl_tfd_tb_get_addr(tfd, i),
				iwl_tfd_tb_get_len(tfd, i), PCI_DMA_TODEVICE);

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	/* free SKB */
	if (txq->txb) {
		struct sk_buff *skb;
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		skb = txq->txb[txq->q.read_ptr].skb;
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		/* can be called from irqs-disabled context */
		if (skb) {
			dev_kfree_skb_any(skb);
			txq->txb[txq->q.read_ptr].skb = NULL;
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		}
	}
}

int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
				 struct iwl_tx_queue *txq,
				 dma_addr_t addr, u16 len,
				 u8 reset, u8 pad)
{
	struct iwl_queue *q;
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	struct iwl_tfd *tfd, *tfd_tmp;
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	u32 num_tbs;

	q = &txq->q;
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	tfd_tmp = (struct iwl_tfd *)txq->tfds;
	tfd = &tfd_tmp[q->write_ptr];
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	if (reset)
		memset(tfd, 0, sizeof(*tfd));

	num_tbs = iwl_tfd_get_num_tbs(tfd);

	/* Each TFD can point to a maximum 20 Tx buffers */
	if (num_tbs >= IWL_NUM_OF_TBS) {
		IWL_ERR(priv, "Error can not send more than %d chunks\n",
			  IWL_NUM_OF_TBS);
		return -EINVAL;
	}

	BUG_ON(addr & ~DMA_BIT_MASK(36));
	if (unlikely(addr & ~IWL_TX_DMA_MASK))
		IWL_ERR(priv, "Unaligned address = %llx\n",
			  (unsigned long long)addr);

	iwl_tfd_set_tb(tfd, num_tbs, addr, len);

	return 0;
}

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/*
 * Tell nic where to find circular buffer of Tx Frame Descriptors for
 * given Tx queue, and enable the DMA channel used for that queue.
 *
 * 4965 supports up to 16 Tx queues in DRAM, mapped to up to 8 Tx DMA
 * channels supported in hardware.
 */
int iwl_hw_tx_queue_init(struct iwl_priv *priv,
			 struct iwl_tx_queue *txq)
{
	int txq_id = txq->q.id;

	/* Circular buffer (TFD queue in DRAM) physical base address */
	iwl_write_direct32(priv, FH_MEM_CBBC_QUEUE(txq_id),
			     txq->q.dma_addr >> 8);

	return 0;
}

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static void iwl_bg_beacon_update(struct work_struct *work)
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{
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	struct iwl_priv *priv =
		container_of(work, struct iwl_priv, beacon_update);
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	struct sk_buff *beacon;

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	mutex_lock(&priv->mutex);
	if (!priv->beacon_ctx) {
		IWL_ERR(priv, "updating beacon w/o beacon context!\n");
		goto out;
	}
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	if (priv->beacon_ctx->vif->type != NL80211_IFTYPE_AP) {
		/*
		 * The ucode will send beacon notifications even in
		 * IBSS mode, but we don't want to process them. But
		 * we need to defer the type check to here due to
		 * requiring locking around the beacon_ctx access.
		 */
		goto out;
	}

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	/* Pull updated AP beacon from mac80211. will fail if not in AP mode */
	beacon = ieee80211_beacon_get(priv->hw, priv->beacon_ctx->vif);
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	if (!beacon) {
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		IWL_ERR(priv, "update beacon failed -- keeping old\n");
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		goto out;
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	}

	/* new beacon skb is allocated every time; dispose previous.*/
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	dev_kfree_skb(priv->beacon_skb);
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	priv->beacon_skb = beacon;
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	iwlagn_send_beacon_cmd(priv);
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 out:
	mutex_unlock(&priv->mutex);
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}

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static void iwl_bg_bt_runtime_config(struct work_struct *work)
{
	struct iwl_priv *priv =
		container_of(work, struct iwl_priv, bt_runtime_config);

	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
		return;

	/* dont send host command if rf-kill is on */
	if (!iwl_is_ready_rf(priv))
		return;
	priv->cfg->ops->hcmd->send_bt_config(priv);
}

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static void iwl_bg_bt_full_concurrency(struct work_struct *work)
{
	struct iwl_priv *priv =
		container_of(work, struct iwl_priv, bt_full_concurrency);
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	struct iwl_rxon_context *ctx;
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	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
		return;

	/* dont send host command if rf-kill is on */
	if (!iwl_is_ready_rf(priv))
		return;

	IWL_DEBUG_INFO(priv, "BT coex in %s mode\n",
		       priv->bt_full_concurrent ?
		       "full concurrency" : "3-wire");

	/*
	 * LQ & RXON updated cmds must be sent before BT Config cmd
	 * to avoid 3-wire collisions
	 */
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	mutex_lock(&priv->mutex);
	for_each_context(priv, ctx) {
		if (priv->cfg->ops->hcmd->set_rxon_chain)
			priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
		iwlcore_commit_rxon(priv, ctx);
	}
	mutex_unlock(&priv->mutex);
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	priv->cfg->ops->hcmd->send_bt_config(priv);
}

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/**
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 * iwl_bg_statistics_periodic - Timer callback to queue statistics
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 *
 * This callback is provided in order to send a statistics request.
 *
 * This timer function is continually reset to execute within
 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
 * was received.  We need to ensure we receive the statistics in order
 * to update the temperature used for calibrating the TXPOWER.
 */
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static void iwl_bg_statistics_periodic(unsigned long data)
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{
	struct iwl_priv *priv = (struct iwl_priv *)data;

	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
		return;

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	/* dont send host command if rf-kill is on */
	if (!iwl_is_ready_rf(priv))
		return;

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	iwl_send_statistics_request(priv, CMD_ASYNC, false);
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}

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static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base,
					u32 start_idx, u32 num_events,
					u32 mode)
{
	u32 i;
	u32 ptr;        /* SRAM byte address of log data */
	u32 ev, time, data; /* event log data */
	unsigned long reg_flags;

	if (mode == 0)
		ptr = base + (4 * sizeof(u32)) + (start_idx * 2 * sizeof(u32));
	else
		ptr = base + (4 * sizeof(u32)) + (start_idx * 3 * sizeof(u32));

	/* Make sure device is powered up for SRAM reads */
	spin_lock_irqsave(&priv->reg_lock, reg_flags);
	if (iwl_grab_nic_access(priv)) {
		spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
		return;
	}

	/* Set starting address; reads will auto-increment */
	_iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, ptr);
	rmb();

	/*
	 * "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_direct32(priv, HBUS_TARG_MEM_RDAT);
		time = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
		if (mode == 0) {
			trace_iwlwifi_dev_ucode_cont_event(priv,
							0, time, ev);
		} else {
			data = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
			trace_iwlwifi_dev_ucode_cont_event(priv,
						time, data, ev);
		}
	}
	/* Allow device to power down */
	iwl_release_nic_access(priv);
	spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
}

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static void iwl_continuous_event_trace(struct iwl_priv *priv)
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{
	u32 capacity;   /* event log capacity in # entries */
	u32 base;       /* SRAM byte address of event log header */
	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 */

	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.log_event_table_ptr);
	if (priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
		capacity = iwl_read_targ_mem(priv, base);
		num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32)));
		mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32)));
		next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32)));
	} else
		return;

	if (num_wraps == priv->event_log.num_wraps) {
		iwl_print_cont_event_trace(priv,
				       base, priv->event_log.next_entry,
				       next_entry - priv->event_log.next_entry,
				       mode);
		priv->event_log.non_wraps_count++;
	} else {
		if ((num_wraps - priv->event_log.num_wraps) > 1)
			priv->event_log.wraps_more_count++;
		else
			priv->event_log.wraps_once_count++;
		trace_iwlwifi_dev_ucode_wrap_event(priv,
				num_wraps - priv->event_log.num_wraps,
				next_entry, priv->event_log.next_entry);
		if (next_entry < priv->event_log.next_entry) {
			iwl_print_cont_event_trace(priv, base,
			       priv->event_log.next_entry,
			       capacity - priv->event_log.next_entry,
			       mode);

			iwl_print_cont_event_trace(priv, base, 0,
				next_entry, mode);
		} else {
			iwl_print_cont_event_trace(priv, base,
			       next_entry, capacity - next_entry,
			       mode);

			iwl_print_cont_event_trace(priv, base, 0,
				next_entry, mode);
		}
	}
	priv->event_log.num_wraps = num_wraps;
	priv->event_log.next_entry = next_entry;
}

/**
 * iwl_bg_ucode_trace - Timer callback to log ucode event
 *
 * The timer is continually set to execute every
 * UCODE_TRACE_PERIOD milliseconds after the last timer expired
 * this function is to perform continuous uCode event logging operation
 * if enabled
 */
static void iwl_bg_ucode_trace(unsigned long data)
{
	struct iwl_priv *priv = (struct iwl_priv *)data;

	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
		return;

	if (priv->event_log.ucode_trace) {
		iwl_continuous_event_trace(priv);
		/* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
		mod_timer(&priv->ucode_trace,
			 jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
	}
}

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static void iwl_bg_tx_flush(struct work_struct *work)
{
	struct iwl_priv *priv =
		container_of(work, struct iwl_priv, tx_flush);

	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
		return;

	/* do nothing if rf-kill is on */
	if (!iwl_is_ready_rf(priv))
		return;

	if (priv->cfg->ops->lib->txfifo_flush) {
		IWL_DEBUG_INFO(priv, "device request: flush all tx frames\n");
		iwlagn_dev_txfifo_flush(priv, IWL_DROP_ALL);
	}
}

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/**
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 * iwl_rx_handle - Main entry function for receiving responses from uCode
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 *
 * Uses the priv->rx_handlers callback function array to invoke
 * the appropriate handlers, including command responses,
 * frame-received notifications, and other notifications.
 */
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static void iwl_rx_handle(struct iwl_priv *priv)
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{
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	struct iwl_rx_mem_buffer *rxb;
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	struct iwl_rx_packet *pkt;
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	struct iwl_rx_queue *rxq = &priv->rxq;
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	u32 r, i;
	int reclaim;
	unsigned long flags;
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	u8 fill_rx = 0;
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	u32 count = 8;
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	int total_empty;
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	/* uCode's read index (stored in shared DRAM) indicates the last Rx
	 * buffer that the driver may process (last buffer filled by ucode). */
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	r = le16_to_cpu(rxq->rb_stts->closed_rb_num) &  0x0FFF;
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	i = rxq->read;

	/* Rx interrupt, but nothing sent from uCode */
	if (i == r)
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		IWL_DEBUG_RX(priv, "r = %d, i = %d\n", r, i);
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	/* calculate total frames need to be restock after handling RX */
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	total_empty = r - rxq->write_actual;
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	if (total_empty < 0)
		total_empty += RX_QUEUE_SIZE;

	if (total_empty > (RX_QUEUE_SIZE / 2))
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		fill_rx = 1;

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	while (i != r) {
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		int len;

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		rxb = rxq->queue[i];

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		/* If an RXB doesn't have a Rx queue slot associated with it,
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		 * then a bug has been introduced in the queue refilling
		 * routines -- catch it here */
		BUG_ON(rxb == NULL);

		rxq->queue[i] = NULL;

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		pci_unmap_page(priv->pci_dev, rxb->page_dma,
			       PAGE_SIZE << priv->hw_params.rx_page_order,
			       PCI_DMA_FROMDEVICE);
		pkt = rxb_addr(rxb);
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		len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
		len += sizeof(u32); /* account for status word */
		trace_iwlwifi_dev_rx(priv, pkt, len);
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		/* Reclaim a command buffer only if this packet is a response
		 *   to a (driver-originated) command.
		 * If the packet (e.g. Rx frame) originated from uCode,
		 *   there is no command buffer to reclaim.
		 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
		 *   but apparently a few don't get set; catch them here. */
		reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
			(pkt->hdr.cmd != REPLY_RX_PHY_CMD) &&
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			(pkt->hdr.cmd != REPLY_RX) &&
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			(pkt->hdr.cmd != REPLY_RX_MPDU_CMD) &&
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			(pkt->hdr.cmd != REPLY_COMPRESSED_BA) &&
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			(pkt->hdr.cmd != STATISTICS_NOTIFICATION) &&
			(pkt->hdr.cmd != REPLY_TX);

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		/*
		 * Do the notification wait before RX handlers so
		 * even if the RX handler consumes the RXB we have
		 * access to it in the notification wait entry.
		 */
		if (!list_empty(&priv->_agn.notif_waits)) {
			struct iwl_notification_wait *w;

			spin_lock(&priv->_agn.notif_wait_lock);
			list_for_each_entry(w, &priv->_agn.notif_waits, list) {
				if (w->cmd == pkt->hdr.cmd) {
					w->triggered = true;
					if (w->fn)
						w->fn(priv, pkt);
				}
			}
			spin_unlock(&priv->_agn.notif_wait_lock);

			wake_up_all(&priv->_agn.notif_waitq);
		}

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		/* Based on type of command response or notification,
		 *   handle those that need handling via function in
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		 *   rx_handlers table.  See iwl_setup_rx_handlers() */
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		if (priv->rx_handlers[pkt->hdr.cmd]) {
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			IWL_DEBUG_RX(priv, "r = %d, i = %d, %s, 0x%02x\n", r,
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				i, get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
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			priv->isr_stats.rx_handlers[pkt->hdr.cmd]++;
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			priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
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		} else {
			/* No handling needed */
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			IWL_DEBUG_RX(priv,
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				"r %d i %d No handler needed for %s, 0x%02x\n",
				r, i, get_cmd_string(pkt->hdr.cmd),
				pkt->hdr.cmd);
		}

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		/*
		 * XXX: After here, we should always check rxb->page
		 * against NULL before touching it or its virtual
		 * memory (pkt). Because some rx_handler might have
		 * already taken or freed the pages.
		 */

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		if (reclaim) {
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			/* Invoke any callbacks, transfer the buffer to caller,
			 * and fire off the (possibly) blocking iwl_send_cmd()
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			 * as we reclaim the driver command queue */
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			if (rxb->page)
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				iwl_tx_cmd_complete(priv, rxb);
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			else
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				IWL_WARN(priv, "Claim null rxb?\n");
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		}

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		/* Reuse the page if possible. For notification packets and
		 * SKBs that fail to Rx correctly, add them back into the
		 * rx_free list for reuse later. */
		spin_lock_irqsave(&rxq->lock, flags);
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		if (rxb->page != NULL) {
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			rxb->page_dma = pci_map_page(priv->pci_dev, rxb->page,
				0, PAGE_SIZE << priv->hw_params.rx_page_order,
				PCI_DMA_FROMDEVICE);
			list_add_tail(&rxb->list, &rxq->rx_free);
			rxq->free_count++;
		} else
			list_add_tail(&rxb->list, &rxq->rx_used);
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		spin_unlock_irqrestore(&rxq->lock, flags);
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		i = (i + 1) & RX_QUEUE_MASK;
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		/* If there are a lot of unused frames,
		 * restock the Rx queue so ucode wont assert. */
		if (fill_rx) {
			count++;
			if (count >= 8) {
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				rxq->read = i;
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				iwlagn_rx_replenish_now(priv);
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				count = 0;
			}
		}
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	}

	/* Backtrack one entry */
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	rxq->read = i;
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	if (fill_rx)
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		iwlagn_rx_replenish_now(priv);
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	else
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		iwlagn_rx_queue_restock(priv);
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}

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/* call this function to flush any scheduled tasklet */
static inline void iwl_synchronize_irq(struct iwl_priv *priv)
{
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	/* wait to make sure we flush pending tasklet*/
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	synchronize_irq(priv->pci_dev->irq);
	tasklet_kill(&priv->irq_tasklet);
}

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/* tasklet for iwlagn interrupt */
static void iwl_irq_tasklet(struct iwl_priv *priv)
{
	u32 inta = 0;
	u32 handled = 0;
	unsigned long flags;
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	u32 i;
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#ifdef CONFIG_IWLWIFI_DEBUG
	u32 inta_mask;
#endif

	spin_lock_irqsave(&priv->lock, flags);

	/* Ack/clear/reset pending uCode interrupts.
	 * Note:  Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
	 */
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	/* There is a hardware bug in the interrupt mask function that some
	 * interrupts (i.e. CSR_INT_BIT_SCD) can still be generated even if
	 * they are disabled in the CSR_INT_MASK register. Furthermore the
	 * ICT interrupt handling mechanism has another bug that might cause
	 * these unmasked interrupts fail to be detected. We workaround the
	 * hardware bugs here by ACKing all the possible interrupts so that
	 * interrupt coalescing can still be achieved.
	 */
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	iwl_write32(priv, CSR_INT, priv->_agn.inta | ~priv->inta_mask);
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874
	inta = priv->_agn.inta;
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#ifdef CONFIG_IWLWIFI_DEBUG
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	if (iwl_get_debug_level(priv) & IWL_DL_ISR) {
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		/* just for debug */
		inta_mask = iwl_read32(priv, CSR_INT_MASK);
		IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x\n ",
				inta, inta_mask);
	}
#endif
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	spin_unlock_irqrestore(&priv->lock, flags);

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	/* saved interrupt in inta variable now we can reset priv->_agn.inta */
	priv->_agn.inta = 0;
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	/* Now service all interrupt bits discovered above. */
	if (inta & CSR_INT_BIT_HW_ERR) {
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		IWL_ERR(priv, "Hardware error detected.  Restarting.\n");
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		/* Tell the device to stop sending interrupts */
		iwl_disable_interrupts(priv);

		priv->isr_stats.hw++;
		iwl_irq_handle_error(priv);

		handled |= CSR_INT_BIT_HW_ERR;

		return;
	}

#ifdef CONFIG_IWLWIFI_DEBUG
906
	if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) {
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		/* NIC fires this, but we don't use it, redundant with WAKEUP */
		if (inta & CSR_INT_BIT_SCD) {
			IWL_DEBUG_ISR(priv, "Scheduler finished to transmit "
				      "the frame/frames.\n");
			priv->isr_stats.sch++;
		}

		/* Alive notification via Rx interrupt will do the real work */
		if (inta & CSR_INT_BIT_ALIVE) {
			IWL_DEBUG_ISR(priv, "Alive interrupt\n");
			priv->isr_stats.alive++;
		}
	}
#endif
	/* Safely ignore these bits for debug checks below */
	inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);

	/* HW RF KILL switch toggled */
	if (inta & CSR_INT_BIT_RF_KILL) {
		int hw_rf_kill = 0;
		if (!(iwl_read32(priv, CSR_GP_CNTRL) &
				CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
			hw_rf_kill = 1;

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		IWL_WARN(priv, "RF_KILL bit toggled to %s.\n",
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				hw_rf_kill ? "disable radio" : "enable radio");

		priv->isr_stats.rfkill++;

		/* driver only loads ucode once setting the interface up.
		 * the driver allows loading the ucode even if the radio
		 * is killed. Hence update the killswitch state here. The
		 * rfkill handler will care about restarting if needed.
		 */
		if (!test_bit(STATUS_ALIVE, &priv->status)) {
			if (hw_rf_kill)
				set_bit(STATUS_RF_KILL_HW, &priv->status);
			else
				clear_bit(STATUS_RF_KILL_HW, &priv->status);
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			wiphy_rfkill_set_hw_state(priv->hw->wiphy, hw_rf_kill);
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		}

		handled |= CSR_INT_BIT_RF_KILL;
	}

	/* Chip got too hot and stopped itself */
	if (inta & CSR_INT_BIT_CT_KILL) {
		IWL_ERR(priv, "Microcode CT kill error detected.\n");
		priv->isr_stats.ctkill++;
		handled |= CSR_INT_BIT_CT_KILL;
	}

	/* Error detected by uCode */
	if (inta & CSR_INT_BIT_SW_ERR) {
		IWL_ERR(priv, "Microcode SW error detected. "
			" Restarting 0x%X.\n", inta);
		priv->isr_stats.sw++;
		iwl_irq_handle_error(priv);
		handled |= CSR_INT_BIT_SW_ERR;
	}

	/* uCode wakes up after power-down sleep */
	if (inta & CSR_INT_BIT_WAKEUP) {
		IWL_DEBUG_ISR(priv, "Wakeup interrupt\n");
		iwl_rx_queue_update_write_ptr(priv, &priv->rxq);
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		for (i = 0; i < priv->hw_params.max_txq_num; i++)
			iwl_txq_update_write_ptr(priv, &priv->txq[i]);
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		priv->isr_stats.wakeup++;

		handled |= CSR_INT_BIT_WAKEUP;
	}

	/* All uCode command responses, including Tx command responses,
	 * Rx "responses" (frame-received notification), and other
	 * notifications from uCode come through here*/
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	if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX |
			CSR_INT_BIT_RX_PERIODIC)) {
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		IWL_DEBUG_ISR(priv, "Rx interrupt\n");
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		if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
			handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
			iwl_write32(priv, CSR_FH_INT_STATUS,
					CSR49_FH_INT_RX_MASK);
		}
		if (inta & CSR_INT_BIT_RX_PERIODIC) {
			handled |= CSR_INT_BIT_RX_PERIODIC;
			iwl_write32(priv, CSR_INT, CSR_INT_BIT_RX_PERIODIC);
		}
		/* Sending RX interrupt require many steps to be done in the
		 * the device:
		 * 1- write interrupt to current index in ICT table.
		 * 2- dma RX frame.
		 * 3- update RX shared data to indicate last write index.
		 * 4- send interrupt.
		 * This could lead to RX race, driver could receive RX interrupt
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		 * but the shared data changes does not reflect this;
		 * periodic interrupt will detect any dangling Rx activity.
1004
		 */
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		/* Disable periodic interrupt; we use it as just a one-shot. */
		iwl_write8(priv, CSR_INT_PERIODIC_REG,
1008
			    CSR_INT_PERIODIC_DIS);
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		iwl_rx_handle(priv);
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		/*
		 * Enable periodic interrupt in 8 msec only if we received
		 * real RX interrupt (instead of just periodic int), to catch
		 * any dangling Rx interrupt.  If it was just the periodic
		 * interrupt, there was no dangling Rx activity, and no need
		 * to extend the periodic interrupt; one-shot is enough.
		 */
1018
		if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX))
1019
			iwl_write8(priv, CSR_INT_PERIODIC_REG,
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				    CSR_INT_PERIODIC_ENA);

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		priv->isr_stats.rx++;
	}

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	/* This "Tx" DMA channel is used only for loading uCode */
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	if (inta & CSR_INT_BIT_FH_TX) {
		iwl_write32(priv, CSR_FH_INT_STATUS, CSR49_FH_INT_TX_MASK);
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		IWL_DEBUG_ISR(priv, "uCode load interrupt\n");
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		priv->isr_stats.tx++;
		handled |= CSR_INT_BIT_FH_TX;
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		/* Wake up uCode load routine, now that load is complete */
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		priv->ucode_write_complete = 1;
		wake_up_interruptible(&priv->wait_command_queue);
	}

	if (inta & ~handled) {
		IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled);
		priv->isr_stats.unhandled++;
	}

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	if (inta & ~(priv->inta_mask)) {
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		IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n",
1043
			 inta & ~priv->inta_mask);
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	}

	/* Re-enable all interrupts */
1047
	/* only Re-enable if disabled by irq */
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	if (test_bit(STATUS_INT_ENABLED, &priv->status))
		iwl_enable_interrupts(priv);
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	/* Re-enable RF_KILL if it occurred */
	else if (handled & CSR_INT_BIT_RF_KILL)
		iwl_enable_rfkill_int(priv);
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}

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/*****************************************************************************
 *
 * sysfs attributes
 *
 *****************************************************************************/

#ifdef CONFIG_IWLWIFI_DEBUG

/*
 * The following adds a new attribute to the sysfs representation
 * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/)
 * used for controlling the debug level.
 *
 * See the level definitions in iwl for details.
 *
 * The debug_level being managed using sysfs below is a per device debug
 * level that is used instead of the global debug level if it (the per
 * device debug level) is set.
 */
static ssize_t show_debug_level(struct device *d,
				struct device_attribute *attr, char *buf)
{
	struct iwl_priv *priv = dev_get_drvdata(d);
	return sprintf(buf, "0x%08X\n", iwl_get_debug_level(priv));
}
static ssize_t store_debug_level(struct device *d,
				struct device_attribute *attr,
				 const char *buf, size_t count)
{
	struct iwl_priv *priv = dev_get_drvdata(d);
	unsigned long val;
	int ret;

	ret = strict_strtoul(buf, 0, &val);
	if (ret)
		IWL_ERR(priv, "%s is not in hex or decimal form.\n", buf);
	else {
		priv->debug_level = val;
		if (iwl_alloc_traffic_mem(priv))
			IWL_ERR(priv,
				"Not enough memory to generate traffic log\n");
	}
	return strnlen(buf, count);
}

static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
			show_debug_level, store_debug_level);


#endif /* CONFIG_IWLWIFI_DEBUG */


static ssize_t show_temperature(struct device *d,
				struct device_attribute *attr, char *buf)
{
	struct iwl_priv *priv = dev_get_drvdata(d);

	if (!iwl_is_alive(priv))
		return -EAGAIN;

	return sprintf(buf, "%d\n", priv->temperature);
}

static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);

static ssize_t show_tx_power(struct device *d,
			     struct device_attribute *attr, char *buf)
{
	struct iwl_priv *priv = dev_get_drvdata(d);

	if (!iwl_is_ready_rf(priv))
		return sprintf(buf, "off\n");
	else
		return sprintf(buf, "%d\n", priv->tx_power_user_lmt);
}

static ssize_t store_tx_power(struct device *d,
			      struct device_attribute *attr,
			      const char *buf, size_t count)
{
	struct iwl_priv *priv = dev_get_drvdata(d);
	unsigned long val;
	int ret;

	ret = strict_strtoul(buf, 10, &val);
	if (ret)
		IWL_INFO(priv, "%s is not in decimal form.\n", buf);
	else {
		ret = iwl_set_tx_power(priv, val, false);
		if (ret)
			IWL_ERR(priv, "failed setting tx power (0x%d).\n",
				ret);
		else
			ret = count;
	}
	return ret;
}

static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);

static struct attribute *iwl_sysfs_entries[] = {
	&dev_attr_temperature.attr,
	&dev_attr_tx_power.attr,
#ifdef CONFIG_IWLWIFI_DEBUG
	&dev_attr_debug_level.attr,
#endif
	NULL
};

static struct attribute_group iwl_attribute_group = {
	.name = NULL,		/* put in device directory */
	.attrs = iwl_sysfs_entries,
};

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1169 1170 1171 1172 1173 1174
/******************************************************************************
 *
 * uCode download functions
 *
 ******************************************************************************/

1175
static void iwl_dealloc_ucode_pci(struct iwl_priv *priv)
Z
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1176
{
1177 1178 1179 1180 1181 1182
	iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code);
	iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data);
	iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
	iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init);
	iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data);
	iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot);
Z
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1183 1184
}

1185
static void iwl_nic_start(struct iwl_priv *priv)
1186 1187 1188 1189 1190
{
	/* Remove all resets to allow NIC to operate */
	iwl_write32(priv, CSR_RESET, 0);
}

1191 1192
struct iwlagn_ucode_capabilities {
	u32 max_probe_length;
1193
	u32 standard_phy_calibration_size;
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1194
	bool pan;
1195
};
1196

1197
static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context);
1198 1199
static int iwl_mac_setup_register(struct iwl_priv *priv,
				  struct iwlagn_ucode_capabilities *capa);
1200

1201 1202 1203
#define UCODE_EXPERIMENTAL_INDEX	100
#define UCODE_EXPERIMENTAL_TAG		"exp"

1204 1205 1206
static int __must_check iwl_request_firmware(struct iwl_priv *priv, bool first)
{
	const char *name_pre = priv->cfg->fw_name_pre;
1207
	char tag[8];
1208

1209 1210 1211 1212 1213 1214
	if (first) {
#ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
		priv->fw_index = UCODE_EXPERIMENTAL_INDEX;
		strcpy(tag, UCODE_EXPERIMENTAL_TAG);
	} else if (priv->fw_index == UCODE_EXPERIMENTAL_INDEX) {
#endif
1215
		priv->fw_index = priv->cfg->ucode_api_max;
1216 1217
		sprintf(tag, "%d", priv->fw_index);
	} else {
1218
		priv->fw_index--;
1219 1220
		sprintf(tag, "%d", priv->fw_index);
	}
1221 1222 1223 1224 1225 1226

	if (priv->fw_index < priv->cfg->ucode_api_min) {
		IWL_ERR(priv, "no suitable firmware found!\n");
		return -ENOENT;
	}

1227
	sprintf(priv->firmware_name, "%s%s%s", name_pre, tag, ".ucode");
1228

1229 1230 1231
	IWL_DEBUG_INFO(priv, "attempting to load firmware %s'%s'\n",
		       (priv->fw_index == UCODE_EXPERIMENTAL_INDEX)
				? "EXPERIMENTAL " : "",
1232 1233 1234 1235 1236 1237 1238
		       priv->firmware_name);

	return request_firmware_nowait(THIS_MODULE, 1, priv->firmware_name,
				       &priv->pci_dev->dev, GFP_KERNEL, priv,
				       iwl_ucode_callback);
}

1239 1240 1241 1242 1243
struct iwlagn_firmware_pieces {
	const void *inst, *data, *init, *init_data, *boot;
	size_t inst_size, data_size, init_size, init_data_size, boot_size;

	u32 build;
1244 1245 1246

	u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
	u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326
};

static int iwlagn_load_legacy_firmware(struct iwl_priv *priv,
				       const struct firmware *ucode_raw,
				       struct iwlagn_firmware_pieces *pieces)
{
	struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
	u32 api_ver, hdr_size;
	const u8 *src;

	priv->ucode_ver = le32_to_cpu(ucode->ver);
	api_ver = IWL_UCODE_API(priv->ucode_ver);

	switch (api_ver) {
	default:
		/*
		 * 4965 doesn't revision the firmware file format
		 * along with the API version, it always uses v1
		 * file format.
		 */
		if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) !=
				CSR_HW_REV_TYPE_4965) {
			hdr_size = 28;
			if (ucode_raw->size < hdr_size) {
				IWL_ERR(priv, "File size too small!\n");
				return -EINVAL;
			}
			pieces->build = le32_to_cpu(ucode->u.v2.build);
			pieces->inst_size = le32_to_cpu(ucode->u.v2.inst_size);
			pieces->data_size = le32_to_cpu(ucode->u.v2.data_size);
			pieces->init_size = le32_to_cpu(ucode->u.v2.init_size);
			pieces->init_data_size = le32_to_cpu(ucode->u.v2.init_data_size);
			pieces->boot_size = le32_to_cpu(ucode->u.v2.boot_size);
			src = ucode->u.v2.data;
			break;
		}
		/* fall through for 4965 */
	case 0:
	case 1:
	case 2:
		hdr_size = 24;
		if (ucode_raw->size < hdr_size) {
			IWL_ERR(priv, "File size too small!\n");
			return -EINVAL;
		}
		pieces->build = 0;
		pieces->inst_size = le32_to_cpu(ucode->u.v1.inst_size);
		pieces->data_size = le32_to_cpu(ucode->u.v1.data_size);
		pieces->init_size = le32_to_cpu(ucode->u.v1.init_size);
		pieces->init_data_size = le32_to_cpu(ucode->u.v1.init_data_size);
		pieces->boot_size = le32_to_cpu(ucode->u.v1.boot_size);
		src = ucode->u.v1.data;
		break;
	}

	/* Verify size of file vs. image size info in file's header */
	if (ucode_raw->size != hdr_size + pieces->inst_size +
				pieces->data_size + pieces->init_size +
				pieces->init_data_size + pieces->boot_size) {

		IWL_ERR(priv,
			"uCode file size %d does not match expected size\n",
			(int)ucode_raw->size);
		return -EINVAL;
	}

	pieces->inst = src;
	src += pieces->inst_size;
	pieces->data = src;
	src += pieces->data_size;
	pieces->init = src;
	src += pieces->init_size;
	pieces->init_data = src;
	src += pieces->init_data_size;
	pieces->boot = src;
	src += pieces->boot_size;

	return 0;
}

1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339
static int iwlagn_wanted_ucode_alternative = 1;

static int iwlagn_load_firmware(struct iwl_priv *priv,
				const struct firmware *ucode_raw,
				struct iwlagn_firmware_pieces *pieces,
				struct iwlagn_ucode_capabilities *capa)
{
	struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
	struct iwl_ucode_tlv *tlv;
	size_t len = ucode_raw->size;
	const u8 *data;
	int wanted_alternative = iwlagn_wanted_ucode_alternative, tmp;
	u64 alternatives;
1340 1341 1342
	u32 tlv_len;
	enum iwl_ucode_tlv_type tlv_type;
	const u8 *tlv_data;
1343

1344 1345
	if (len < sizeof(*ucode)) {
		IWL_ERR(priv, "uCode has invalid length: %zd\n", len);
1346
		return -EINVAL;
1347
	}
1348

1349 1350 1351
	if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
		IWL_ERR(priv, "invalid uCode magic: 0X%x\n",
			le32_to_cpu(ucode->magic));
1352
		return -EINVAL;
1353
	}
1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377

	/*
	 * Check which alternatives are present, and "downgrade"
	 * when the chosen alternative is not present, warning
	 * the user when that happens. Some files may not have
	 * any alternatives, so don't warn in that case.
	 */
	alternatives = le64_to_cpu(ucode->alternatives);
	tmp = wanted_alternative;
	if (wanted_alternative > 63)
		wanted_alternative = 63;
	while (wanted_alternative && !(alternatives & BIT(wanted_alternative)))
		wanted_alternative--;
	if (wanted_alternative && wanted_alternative != tmp)
		IWL_WARN(priv,
			 "uCode alternative %d not available, choosing %d\n",
			 tmp, wanted_alternative);

	priv->ucode_ver = le32_to_cpu(ucode->ver);
	pieces->build = le32_to_cpu(ucode->build);
	data = ucode->data;

	len -= sizeof(*ucode);

1378
	while (len >= sizeof(*tlv)) {
1379 1380 1381 1382 1383 1384 1385 1386 1387 1388
		u16 tlv_alt;

		len -= sizeof(*tlv);
		tlv = (void *)data;

		tlv_len = le32_to_cpu(tlv->length);
		tlv_type = le16_to_cpu(tlv->type);
		tlv_alt = le16_to_cpu(tlv->alternative);
		tlv_data = tlv->data;

1389 1390 1391
		if (len < tlv_len) {
			IWL_ERR(priv, "invalid TLV len: %zd/%u\n",
				len, tlv_len);
1392
			return -EINVAL;
1393
		}
1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426
		len -= ALIGN(tlv_len, 4);
		data += sizeof(*tlv) + ALIGN(tlv_len, 4);

		/*
		 * Alternative 0 is always valid.
		 *
		 * Skip alternative TLVs that are not selected.
		 */
		if (tlv_alt != 0 && tlv_alt != wanted_alternative)
			continue;

		switch (tlv_type) {
		case IWL_UCODE_TLV_INST:
			pieces->inst = tlv_data;
			pieces->inst_size = tlv_len;
			break;
		case IWL_UCODE_TLV_DATA:
			pieces->data = tlv_data;
			pieces->data_size = tlv_len;
			break;
		case IWL_UCODE_TLV_INIT:
			pieces->init = tlv_data;
			pieces->init_size = tlv_len;
			break;
		case IWL_UCODE_TLV_INIT_DATA:
			pieces->init_data = tlv_data;
			pieces->init_data_size = tlv_len;
			break;
		case IWL_UCODE_TLV_BOOT:
			pieces->boot = tlv_data;
			pieces->boot_size = tlv_len;
			break;
		case IWL_UCODE_TLV_PROBE_MAX_LEN:
1427 1428 1429
			if (tlv_len != sizeof(u32))
				goto invalid_tlv_len;
			capa->max_probe_length =
1430
					le32_to_cpup((__le32 *)tlv_data);
1431
			break;
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Johannes Berg 已提交
1432 1433 1434 1435 1436
		case IWL_UCODE_TLV_PAN:
			if (tlv_len)
				goto invalid_tlv_len;
			capa->pan = true;
			break;
1437
		case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
1438 1439 1440
			if (tlv_len != sizeof(u32))
				goto invalid_tlv_len;
			pieces->init_evtlog_ptr =
1441
					le32_to_cpup((__le32 *)tlv_data);
1442 1443
			break;
		case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
1444 1445 1446
			if (tlv_len != sizeof(u32))
				goto invalid_tlv_len;
			pieces->init_evtlog_size =
1447
					le32_to_cpup((__le32 *)tlv_data);
1448 1449
			break;
		case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
1450 1451 1452
			if (tlv_len != sizeof(u32))
				goto invalid_tlv_len;
			pieces->init_errlog_ptr =
1453
					le32_to_cpup((__le32 *)tlv_data);
1454 1455
			break;
		case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
1456 1457 1458
			if (tlv_len != sizeof(u32))
				goto invalid_tlv_len;
			pieces->inst_evtlog_ptr =
1459
					le32_to_cpup((__le32 *)tlv_data);
1460 1461
			break;
		case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
1462 1463 1464
			if (tlv_len != sizeof(u32))
				goto invalid_tlv_len;
			pieces->inst_evtlog_size =
1465
					le32_to_cpup((__le32 *)tlv_data);
1466 1467
			break;
		case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
1468 1469 1470
			if (tlv_len != sizeof(u32))
				goto invalid_tlv_len;
			pieces->inst_errlog_ptr =
1471
					le32_to_cpup((__le32 *)tlv_data);
1472
			break;
1473 1474
		case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
			if (tlv_len)
1475 1476
				goto invalid_tlv_len;
			priv->enhance_sensitivity_table = true;
1477
			break;
1478
		case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
1479 1480 1481
			if (tlv_len != sizeof(u32))
				goto invalid_tlv_len;
			capa->standard_phy_calibration_size =
1482 1483
					le32_to_cpup((__le32 *)tlv_data);
			break;
1484
		default:
1485
			IWL_WARN(priv, "unknown TLV: %d\n", tlv_type);
1486 1487 1488 1489
			break;
		}
	}

1490 1491 1492
	if (len) {
		IWL_ERR(priv, "invalid TLV after parsing: %zd\n", len);
		iwl_print_hex_dump(priv, IWL_DL_FW, (u8 *)data, len);
1493
		return -EINVAL;
1494
	}
1495

1496 1497 1498 1499 1500 1501 1502
	return 0;

 invalid_tlv_len:
	IWL_ERR(priv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
	iwl_print_hex_dump(priv, IWL_DL_FW, tlv_data, tlv_len);

	return -EINVAL;
1503 1504
}

Z
Zhu Yi 已提交
1505
/**
1506
 * iwl_ucode_callback - callback when firmware was loaded
Z
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1507
 *
1508 1509
 * If loaded successfully, copies the firmware into buffers
 * for the card to fetch (via DMA).
Z
Zhu Yi 已提交
1510
 */
1511
static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
Z
Zhu Yi 已提交
1512
{
1513
	struct iwl_priv *priv = context;
1514
	struct iwl_ucode_header *ucode;
1515 1516
	int err;
	struct iwlagn_firmware_pieces pieces;
1517 1518
	const unsigned int api_max = priv->cfg->ucode_api_max;
	const unsigned int api_min = priv->cfg->ucode_api_min;
1519
	u32 api_ver;
1520
	char buildstr[25];
1521
	u32 build;
1522 1523
	struct iwlagn_ucode_capabilities ucode_capa = {
		.max_probe_length = 200,
1524
		.standard_phy_calibration_size =
1525
			IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE,
1526
	};
1527 1528

	memset(&pieces, 0, sizeof(pieces));
Z
Zhu Yi 已提交
1529

1530
	if (!ucode_raw) {
1531 1532 1533 1534
		if (priv->fw_index <= priv->cfg->ucode_api_max)
			IWL_ERR(priv,
				"request for firmware file '%s' failed.\n",
				priv->firmware_name);
1535
		goto try_again;
Z
Zhu Yi 已提交
1536 1537
	}

1538 1539
	IWL_DEBUG_INFO(priv, "Loaded firmware file '%s' (%zd bytes).\n",
		       priv->firmware_name, ucode_raw->size);
Z
Zhu Yi 已提交
1540

1541 1542
	/* Make sure that we got at least the API version number */
	if (ucode_raw->size < 4) {
1543
		IWL_ERR(priv, "File size way too small!\n");
1544
		goto try_again;
Z
Zhu Yi 已提交
1545 1546 1547
	}

	/* Data from ucode file:  header followed by uCode images */
1548
	ucode = (struct iwl_ucode_header *)ucode_raw->data;
Z
Zhu Yi 已提交
1549

1550 1551 1552
	if (ucode->ver)
		err = iwlagn_load_legacy_firmware(priv, ucode_raw, &pieces);
	else
1553 1554
		err = iwlagn_load_firmware(priv, ucode_raw, &pieces,
					   &ucode_capa);
1555

1556 1557
	if (err)
		goto try_again;
Z
Zhu Yi 已提交
1558

1559
	api_ver = IWL_UCODE_API(priv->ucode_ver);
1560
	build = pieces.build;
1561

1562 1563 1564 1565 1566
	/*
	 * api_ver should match the api version forming part of the
	 * firmware filename ... but we don't check for that and only rely
	 * on the API version read from firmware header from here on forward
	 */
1567 1568 1569 1570 1571 1572 1573 1574 1575
	/* no api version check required for experimental uCode */
	if (priv->fw_index != UCODE_EXPERIMENTAL_INDEX) {
		if (api_ver < api_min || api_ver > api_max) {
			IWL_ERR(priv,
				"Driver unable to support your firmware API. "
				"Driver supports v%u, firmware is v%u.\n",
				api_max, api_ver);
			goto try_again;
		}
1576

1577 1578 1579 1580 1581 1582 1583
		if (api_ver != api_max)
			IWL_ERR(priv,
				"Firmware has old API version. Expected v%u, "
				"got v%u. New firmware can be obtained "
				"from http://www.intellinuxwireless.org.\n",
				api_max, api_ver);
	}
1584

1585
	if (build)
1586 1587 1588
		sprintf(buildstr, " build %u%s", build,
		       (priv->fw_index == UCODE_EXPERIMENTAL_INDEX)
				? " (EXP)" : "");
1589 1590 1591 1592 1593 1594 1595 1596 1597
	else
		buildstr[0] = '\0';

	IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u%s\n",
		 IWL_UCODE_MAJOR(priv->ucode_ver),
		 IWL_UCODE_MINOR(priv->ucode_ver),
		 IWL_UCODE_API(priv->ucode_ver),
		 IWL_UCODE_SERIAL(priv->ucode_ver),
		 buildstr);
1598

1599 1600
	snprintf(priv->hw->wiphy->fw_version,
		 sizeof(priv->hw->wiphy->fw_version),
1601
		 "%u.%u.%u.%u%s",
1602 1603 1604
		 IWL_UCODE_MAJOR(priv->ucode_ver),
		 IWL_UCODE_MINOR(priv->ucode_ver),
		 IWL_UCODE_API(priv->ucode_ver),
1605 1606
		 IWL_UCODE_SERIAL(priv->ucode_ver),
		 buildstr);
Z
Zhu Yi 已提交
1607

1608 1609 1610 1611 1612 1613
	/*
	 * For any of the failures below (before allocating pci memory)
	 * we will try to load a version with a smaller API -- maybe the
	 * user just got a corrupted version of the latest API.
	 */

1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625
	IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n",
		       priv->ucode_ver);
	IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %Zd\n",
		       pieces.inst_size);
	IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %Zd\n",
		       pieces.data_size);
	IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %Zd\n",
		       pieces.init_size);
	IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %Zd\n",
		       pieces.init_data_size);
	IWL_DEBUG_INFO(priv, "f/w package hdr boot inst size = %Zd\n",
		       pieces.boot_size);
Z
Zhu Yi 已提交
1626 1627

	/* Verify that uCode images will fit in card's SRAM */
1628 1629 1630
	if (pieces.inst_size > priv->hw_params.max_inst_size) {
		IWL_ERR(priv, "uCode instr len %Zd too large to fit in\n",
			pieces.inst_size);
1631
		goto try_again;
Z
Zhu Yi 已提交
1632 1633
	}

1634 1635 1636
	if (pieces.data_size > priv->hw_params.max_data_size) {
		IWL_ERR(priv, "uCode data len %Zd too large to fit in\n",
			pieces.data_size);
1637
		goto try_again;
Z
Zhu Yi 已提交
1638
	}
1639 1640 1641 1642

	if (pieces.init_size > priv->hw_params.max_inst_size) {
		IWL_ERR(priv, "uCode init instr len %Zd too large to fit in\n",
			pieces.init_size);
1643
		goto try_again;
Z
Zhu Yi 已提交
1644
	}
1645 1646 1647 1648

	if (pieces.init_data_size > priv->hw_params.max_data_size) {
		IWL_ERR(priv, "uCode init data len %Zd too large to fit in\n",
			pieces.init_data_size);
1649
		goto try_again;
Z
Zhu Yi 已提交
1650
	}
1651 1652 1653 1654

	if (pieces.boot_size > priv->hw_params.max_bsm_size) {
		IWL_ERR(priv, "uCode boot instr len %Zd too large to fit in\n",
			pieces.boot_size);
1655
		goto try_again;
Z
Zhu Yi 已提交
1656 1657 1658 1659 1660 1661 1662
	}

	/* Allocate ucode buffers for card's bus-master loading ... */

	/* Runtime instructions and 2 copies of data:
	 * 1) unmodified from disk
	 * 2) backup cache for save/restore during power-downs */
1663
	priv->ucode_code.len = pieces.inst_size;
1664
	iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code);
Z
Zhu Yi 已提交
1665

1666
	priv->ucode_data.len = pieces.data_size;
1667
	iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data);
Z
Zhu Yi 已提交
1668

1669
	priv->ucode_data_backup.len = pieces.data_size;
1670
	iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
Z
Zhu Yi 已提交
1671

1672 1673 1674 1675
	if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr ||
	    !priv->ucode_data_backup.v_addr)
		goto err_pci_alloc;

Z
Zhu Yi 已提交
1676
	/* Initialization instructions and data */
1677 1678
	if (pieces.init_size && pieces.init_data_size) {
		priv->ucode_init.len = pieces.init_size;
1679
		iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init);
1680

1681
		priv->ucode_init_data.len = pieces.init_data_size;
1682
		iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data);
1683 1684 1685 1686

		if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr)
			goto err_pci_alloc;
	}
Z
Zhu Yi 已提交
1687 1688

	/* Bootstrap (instructions only, no data) */
1689 1690
	if (pieces.boot_size) {
		priv->ucode_boot.len = pieces.boot_size;
1691
		iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot);
Z
Zhu Yi 已提交
1692

1693 1694 1695
		if (!priv->ucode_boot.v_addr)
			goto err_pci_alloc;
	}
Z
Zhu Yi 已提交
1696

1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707
	/* Now that we can no longer fail, copy information */

	/*
	 * The (size - 16) / 12 formula is based on the information recorded
	 * for each event, which is of mode 1 (including timestamp) for all
	 * new microcodes that include this information.
	 */
	priv->_agn.init_evtlog_ptr = pieces.init_evtlog_ptr;
	if (pieces.init_evtlog_size)
		priv->_agn.init_evtlog_size = (pieces.init_evtlog_size - 16)/12;
	else
1708 1709
		priv->_agn.init_evtlog_size =
			priv->cfg->base_params->max_event_log_size;
1710 1711 1712 1713 1714
	priv->_agn.init_errlog_ptr = pieces.init_errlog_ptr;
	priv->_agn.inst_evtlog_ptr = pieces.inst_evtlog_ptr;
	if (pieces.inst_evtlog_size)
		priv->_agn.inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12;
	else
1715 1716
		priv->_agn.inst_evtlog_size =
			priv->cfg->base_params->max_event_log_size;
1717 1718
	priv->_agn.inst_errlog_ptr = pieces.inst_errlog_ptr;

J
Johannes Berg 已提交
1719 1720
	if (ucode_capa.pan) {
		priv->valid_contexts |= BIT(IWL_RXON_CTX_PAN);
1721
		priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN;
J
Johannes Berg 已提交
1722 1723
	} else
		priv->sta_key_max_num = STA_KEY_MAX_NUM;
1724

Z
Zhu Yi 已提交
1725 1726 1727
	/* Copy images into buffers for card's bus-master reads ... */

	/* Runtime instructions (first block of data in file) */
1728 1729 1730
	IWL_DEBUG_INFO(priv, "Copying (but not loading) uCode instr len %Zd\n",
			pieces.inst_size);
	memcpy(priv->ucode_code.v_addr, pieces.inst, pieces.inst_size);
1731

1732
	IWL_DEBUG_INFO(priv, "uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
Z
Zhu Yi 已提交
1733 1734
		priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr);

1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745
	/*
	 * Runtime data
	 * NOTE:  Copy into backup buffer will be done in iwl_up()
	 */
	IWL_DEBUG_INFO(priv, "Copying (but not loading) uCode data len %Zd\n",
			pieces.data_size);
	memcpy(priv->ucode_data.v_addr, pieces.data, pieces.data_size);
	memcpy(priv->ucode_data_backup.v_addr, pieces.data, pieces.data_size);

	/* Initialization instructions */
	if (pieces.init_size) {
1746
		IWL_DEBUG_INFO(priv, "Copying (but not loading) init instr len %Zd\n",
1747 1748
				pieces.init_size);
		memcpy(priv->ucode_init.v_addr, pieces.init, pieces.init_size);
Z
Zhu Yi 已提交
1749 1750
	}

1751 1752
	/* Initialization data */
	if (pieces.init_data_size) {
1753
		IWL_DEBUG_INFO(priv, "Copying (but not loading) init data len %Zd\n",
1754 1755 1756
			       pieces.init_data_size);
		memcpy(priv->ucode_init_data.v_addr, pieces.init_data,
		       pieces.init_data_size);
Z
Zhu Yi 已提交
1757 1758
	}

1759 1760 1761 1762
	/* Bootstrap instructions */
	IWL_DEBUG_INFO(priv, "Copying (but not loading) boot instr len %Zd\n",
			pieces.boot_size);
	memcpy(priv->ucode_boot.v_addr, pieces.boot, pieces.boot_size);
Z
Zhu Yi 已提交
1763

1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777
	/*
	 * figure out the offset of chain noise reset and gain commands
	 * base on the size of standard phy calibration commands table size
	 */
	if (ucode_capa.standard_phy_calibration_size >
	    IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
		ucode_capa.standard_phy_calibration_size =
			IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;

	priv->_agn.phy_calib_chain_noise_reset_cmd =
		ucode_capa.standard_phy_calibration_size;
	priv->_agn.phy_calib_chain_noise_gain_cmd =
		ucode_capa.standard_phy_calibration_size + 1;

1778 1779 1780 1781 1782
	/**************************************************
	 * This is still part of probe() in a sense...
	 *
	 * 9. Setup and register with mac80211 and debugfs
	 **************************************************/
1783
	err = iwl_mac_setup_register(priv, &ucode_capa);
1784 1785 1786 1787 1788 1789 1790
	if (err)
		goto out_unbind;

	err = iwl_dbgfs_register(priv, DRV_NAME);
	if (err)
		IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err);

1791 1792 1793 1794 1795 1796 1797
	err = sysfs_create_group(&priv->pci_dev->dev.kobj,
					&iwl_attribute_group);
	if (err) {
		IWL_ERR(priv, "failed to create sysfs device attributes\n");
		goto out_unbind;
	}

Z
Zhu Yi 已提交
1798 1799
	/* We have our copies now, allow OS release its copies */
	release_firmware(ucode_raw);
1800
	complete(&priv->_agn.firmware_loading_complete);
1801 1802 1803 1804 1805 1806 1807 1808
	return;

 try_again:
	/* try next, if any */
	if (iwl_request_firmware(priv, false))
		goto out_unbind;
	release_firmware(ucode_raw);
	return;
Z
Zhu Yi 已提交
1809 1810

 err_pci_alloc:
1811
	IWL_ERR(priv, "failed to allocate pci memory\n");
1812
	iwl_dealloc_ucode_pci(priv);
1813
 out_unbind:
1814
	complete(&priv->_agn.firmware_loading_complete);
1815
	device_release_driver(&priv->pci_dev->dev);
Z
Zhu Yi 已提交
1816 1817 1818
	release_firmware(ucode_raw);
}

1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849
static const char *desc_lookup_text[] = {
	"OK",
	"FAIL",
	"BAD_PARAM",
	"BAD_CHECKSUM",
	"NMI_INTERRUPT_WDG",
	"SYSASSERT",
	"FATAL_ERROR",
	"BAD_COMMAND",
	"HW_ERROR_TUNE_LOCK",
	"HW_ERROR_TEMPERATURE",
	"ILLEGAL_CHAN_FREQ",
	"VCC_NOT_STABLE",
	"FH_ERROR",
	"NMI_INTERRUPT_HOST",
	"NMI_INTERRUPT_ACTION_PT",
	"NMI_INTERRUPT_UNKNOWN",
	"UCODE_VERSION_MISMATCH",
	"HW_ERROR_ABS_LOCK",
	"HW_ERROR_CAL_LOCK_FAIL",
	"NMI_INTERRUPT_INST_ACTION_PT",
	"NMI_INTERRUPT_DATA_ACTION_PT",
	"NMI_TRM_HW_ER",
	"NMI_INTERRUPT_TRM",
	"NMI_INTERRUPT_BREAK_POINT"
	"DEBUG_0",
	"DEBUG_1",
	"DEBUG_2",
	"DEBUG_3",
};

1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869
static struct { char *name; u8 num; } advanced_lookup[] = {
	{ "NMI_INTERRUPT_WDG", 0x34 },
	{ "SYSASSERT", 0x35 },
	{ "UCODE_VERSION_MISMATCH", 0x37 },
	{ "BAD_COMMAND", 0x38 },
	{ "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C },
	{ "FATAL_ERROR", 0x3D },
	{ "NMI_TRM_HW_ERR", 0x46 },
	{ "NMI_INTERRUPT_TRM", 0x4C },
	{ "NMI_INTERRUPT_BREAK_POINT", 0x54 },
	{ "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C },
	{ "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 },
	{ "NMI_INTERRUPT_HOST", 0x66 },
	{ "NMI_INTERRUPT_ACTION_PT", 0x7C },
	{ "NMI_INTERRUPT_UNKNOWN", 0x84 },
	{ "NMI_INTERRUPT_INST_ACTION_PT", 0x86 },
	{ "ADVANCED_SYSASSERT", 0 },
};

static const char *desc_lookup(u32 num)
1870
{
1871 1872
	int i;
	int max = ARRAY_SIZE(desc_lookup_text);
1873

1874 1875
	if (num < max)
		return desc_lookup_text[num];
1876

1877 1878 1879 1880 1881 1882
	max = ARRAY_SIZE(advanced_lookup) - 1;
	for (i = 0; i < max; i++) {
		if (advanced_lookup[i].num == num)
			break;;
	}
	return advanced_lookup[i].name;
1883 1884 1885 1886 1887 1888 1889 1890 1891 1892
}

#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;
1893
	u32 pc, hcmd;
1894

1895
	if (priv->ucode_type == UCODE_INIT) {
1896
		base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr);
1897 1898 1899
		if (!base)
			base = priv->_agn.init_errlog_ptr;
	} else {
1900
		base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
1901 1902 1903
		if (!base)
			base = priv->_agn.inst_errlog_ptr;
	}
1904 1905

	if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
1906 1907 1908
		IWL_ERR(priv,
			"Not valid error log pointer 0x%08X for %s uCode\n",
			base, (priv->ucode_type == UCODE_INIT) ? "Init" : "RT");
1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920
		return;
	}

	count = iwl_read_targ_mem(priv, base);

	if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
		IWL_ERR(priv, "Start IWL Error Log Dump:\n");
		IWL_ERR(priv, "Status: 0x%08lX, count: %d\n",
			priv->status, count);
	}

	desc = iwl_read_targ_mem(priv, base + 1 * sizeof(u32));
1921
	priv->isr_stats.err_code = desc;
1922
	pc = iwl_read_targ_mem(priv, base + 2 * sizeof(u32));
1923 1924 1925 1926 1927 1928 1929 1930
	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));
1931
	hcmd = iwl_read_targ_mem(priv, base + 22 * sizeof(u32));
1932

J
Johannes Berg 已提交
1933 1934 1935
	trace_iwlwifi_dev_ucode_error(priv, desc, time, data1, data2, line,
				      blink1, blink2, ilink1, ilink2);

1936
	IWL_ERR(priv, "Desc                                  Time       "
1937
		"data1      data2      line\n");
1938
	IWL_ERR(priv, "%-28s (0x%04X) %010u 0x%08X 0x%08X %u\n",
1939
		desc_lookup(desc), desc, time, data1, data2, line);
1940 1941 1942
	IWL_ERR(priv, "pc      blink1  blink2  ilink1  ilink2  hcmd\n");
	IWL_ERR(priv, "0x%05X 0x%05X 0x%05X 0x%05X 0x%05X 0x%05X\n",
		pc, blink1, blink2, ilink1, ilink2, hcmd);
1943 1944 1945 1946 1947 1948 1949 1950
}

#define EVENT_START_OFFSET  (4 * sizeof(u32))

/**
 * iwl_print_event_log - Dump error event log to syslog
 *
 */
W
Wey-Yi Guy 已提交
1951 1952 1953
static int iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
			       u32 num_events, u32 mode,
			       int pos, char **buf, size_t bufsz)
1954 1955 1956 1957 1958 1959
{
	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 */
B
Ben Cahill 已提交
1960
	unsigned long reg_flags;
1961 1962

	if (num_events == 0)
W
Wey-Yi Guy 已提交
1963
		return pos;
1964 1965

	if (priv->ucode_type == UCODE_INIT) {
1966
		base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
1967 1968 1969
		if (!base)
			base = priv->_agn.init_evtlog_ptr;
	} else {
1970
		base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
1971 1972 1973
		if (!base)
			base = priv->_agn.inst_evtlog_ptr;
	}
1974 1975 1976 1977 1978 1979 1980 1981

	if (mode == 0)
		event_size = 2 * sizeof(u32);
	else
		event_size = 3 * sizeof(u32);

	ptr = base + EVENT_START_OFFSET + (start_idx * event_size);

B
Ben Cahill 已提交
1982 1983 1984 1985 1986 1987 1988 1989
	/* Make sure device is powered up for SRAM reads */
	spin_lock_irqsave(&priv->reg_lock, reg_flags);
	iwl_grab_nic_access(priv);

	/* Set starting address; reads will auto-increment */
	_iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, ptr);
	rmb();

1990 1991 1992
	/* "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++) {
B
Ben Cahill 已提交
1993 1994
		ev = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
		time = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
1995 1996
		if (mode == 0) {
			/* data, ev */
W
Wey-Yi Guy 已提交
1997 1998 1999 2000 2001 2002 2003 2004 2005 2006
			if (bufsz) {
				pos += scnprintf(*buf + pos, bufsz - pos,
						"EVT_LOG:0x%08x:%04u\n",
						time, ev);
			} else {
				trace_iwlwifi_dev_ucode_event(priv, 0,
					time, ev);
				IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n",
					time, ev);
			}
2007
		} else {
B
Ben Cahill 已提交
2008
			data = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
W
Wey-Yi Guy 已提交
2009 2010 2011 2012 2013 2014
			if (bufsz) {
				pos += scnprintf(*buf + pos, bufsz - pos,
						"EVT_LOGT:%010u:0x%08x:%04u\n",
						 time, data, ev);
			} else {
				IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n",
2015
					time, data, ev);
W
Wey-Yi Guy 已提交
2016 2017 2018
				trace_iwlwifi_dev_ucode_event(priv, time,
					data, ev);
			}
2019 2020
		}
	}
B
Ben Cahill 已提交
2021 2022 2023 2024

	/* Allow device to power down */
	iwl_release_nic_access(priv);
	spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
W
Wey-Yi Guy 已提交
2025
	return pos;
2026 2027
}

2028 2029 2030
/**
 * iwl_print_last_event_logs - Dump the newest # of event log to syslog
 */
W
Wey-Yi Guy 已提交
2031 2032 2033 2034
static int iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
				    u32 num_wraps, u32 next_entry,
				    u32 size, u32 mode,
				    int pos, char **buf, size_t bufsz)
2035 2036 2037 2038 2039 2040 2041
{
	/*
	 * display the newest DEFAULT_LOG_ENTRIES entries
	 * i.e the entries just before the next ont that uCode would fill.
	 */
	if (num_wraps) {
		if (next_entry < size) {
W
Wey-Yi Guy 已提交
2042 2043 2044 2045 2046 2047 2048
			pos = iwl_print_event_log(priv,
						capacity - (size - next_entry),
						size - next_entry, mode,
						pos, buf, bufsz);
			pos = iwl_print_event_log(priv, 0,
						  next_entry, mode,
						  pos, buf, bufsz);
2049
		} else
W
Wey-Yi Guy 已提交
2050 2051
			pos = iwl_print_event_log(priv, next_entry - size,
						  size, mode, pos, buf, bufsz);
2052
	} else {
W
Wey-Yi Guy 已提交
2053 2054 2055 2056 2057 2058 2059
		if (next_entry < size) {
			pos = iwl_print_event_log(priv, 0, next_entry,
						  mode, pos, buf, bufsz);
		} else {
			pos = iwl_print_event_log(priv, next_entry - size,
						  size, mode, pos, buf, bufsz);
		}
2060
	}
W
Wey-Yi Guy 已提交
2061
	return pos;
2062 2063 2064 2065
}

#define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20)

W
Wey-Yi Guy 已提交
2066 2067
int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
			    char **buf, bool display)
2068 2069 2070 2071 2072 2073 2074
{
	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 */
2075
	u32 logsize;
W
Wey-Yi Guy 已提交
2076 2077
	int pos = 0;
	size_t bufsz = 0;
2078

2079
	if (priv->ucode_type == UCODE_INIT) {
2080
		base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
2081 2082 2083 2084
		logsize = priv->_agn.init_evtlog_size;
		if (!base)
			base = priv->_agn.init_evtlog_ptr;
	} else {
2085
		base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
2086 2087 2088 2089
		logsize = priv->_agn.inst_evtlog_size;
		if (!base)
			base = priv->_agn.inst_evtlog_ptr;
	}
2090 2091

	if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
2092 2093 2094
		IWL_ERR(priv,
			"Invalid event log pointer 0x%08X for %s uCode\n",
			base, (priv->ucode_type == UCODE_INIT) ? "Init" : "RT");
2095
		return -EINVAL;
2096 2097 2098 2099 2100 2101 2102 2103
	}

	/* 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)));

2104
	if (capacity > logsize) {
B
Ben Cahill 已提交
2105
		IWL_ERR(priv, "Log capacity %d is bogus, limit to %d entries\n",
2106 2107
			capacity, logsize);
		capacity = logsize;
B
Ben Cahill 已提交
2108 2109
	}

2110
	if (next_entry > logsize) {
B
Ben Cahill 已提交
2111
		IWL_ERR(priv, "Log write index %d is bogus, limit to %d\n",
2112 2113
			next_entry, logsize);
		next_entry = logsize;
B
Ben Cahill 已提交
2114 2115
	}

2116 2117 2118 2119 2120
	size = num_wraps ? capacity : next_entry;

	/* bail out if nothing in log */
	if (size == 0) {
		IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n");
W
Wey-Yi Guy 已提交
2121
		return pos;
2122 2123
	}

2124
	/* enable/disable bt channel inhibition */
2125 2126
	priv->bt_ch_announce = iwlagn_bt_ch_announce;

2127
#ifdef CONFIG_IWLWIFI_DEBUG
2128
	if (!(iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) && !full_log)
2129 2130 2131 2132 2133 2134 2135 2136
		size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES)
			? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size;
#else
	size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES)
		? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size;
#endif
	IWL_ERR(priv, "Start IWL Event Log Dump: display last %u entries\n",
		size);
2137

2138
#ifdef CONFIG_IWLWIFI_DEBUG
W
Wey-Yi Guy 已提交
2139 2140 2141 2142 2143 2144 2145
	if (display) {
		if (full_log)
			bufsz = capacity * 48;
		else
			bufsz = size * 48;
		*buf = kmalloc(bufsz, GFP_KERNEL);
		if (!*buf)
2146
			return -ENOMEM;
W
Wey-Yi Guy 已提交
2147
	}
2148 2149 2150 2151 2152 2153 2154
	if ((iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) || full_log) {
		/*
		 * 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)
W
Wey-Yi Guy 已提交
2155 2156 2157
			pos = iwl_print_event_log(priv, next_entry,
						capacity - next_entry, mode,
						pos, buf, bufsz);
2158
		/* (then/else) start at top of log */
W
Wey-Yi Guy 已提交
2159 2160
		pos = iwl_print_event_log(priv, 0,
					  next_entry, mode, pos, buf, bufsz);
2161
	} else
W
Wey-Yi Guy 已提交
2162 2163 2164
		pos = iwl_print_last_event_logs(priv, capacity, num_wraps,
						next_entry, size, mode,
						pos, buf, bufsz);
2165
#else
W
Wey-Yi Guy 已提交
2166 2167 2168
	pos = iwl_print_last_event_logs(priv, capacity, num_wraps,
					next_entry, size, mode,
					pos, buf, bufsz);
2169
#endif
W
Wey-Yi Guy 已提交
2170
	return pos;
2171
}
2172

2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185
static void iwl_rf_kill_ct_config(struct iwl_priv *priv)
{
	struct iwl_ct_kill_config cmd;
	struct iwl_ct_kill_throttling_config adv_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);
	priv->thermal_throttle.ct_kill_toggle = false;

2186
	if (priv->cfg->base_params->support_ct_kill_exit) {
2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218
		adv_cmd.critical_temperature_enter =
			cpu_to_le32(priv->hw_params.ct_kill_threshold);
		adv_cmd.critical_temperature_exit =
			cpu_to_le32(priv->hw_params.ct_kill_exit_threshold);

		ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD,
				       sizeof(adv_cmd), &adv_cmd);
		if (ret)
			IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
		else
			IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
					"succeeded, "
					"critical temperature enter is %d,"
					"exit is %d\n",
				       priv->hw_params.ct_kill_threshold,
				       priv->hw_params.ct_kill_exit_threshold);
	} else {
		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_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
		else
			IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
					"succeeded, "
					"critical temperature is %d\n",
					priv->hw_params.ct_kill_threshold);
	}
}

2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229
static int iwlagn_send_calib_cfg_rt(struct iwl_priv *priv, u32 cfg)
{
	struct iwl_calib_cfg_cmd calib_cfg_cmd;
	struct iwl_host_cmd cmd = {
		.id = CALIBRATION_CFG_CMD,
		.len = sizeof(struct iwl_calib_cfg_cmd),
		.data = &calib_cfg_cmd,
	};

	memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
	calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
2230
	calib_cfg_cmd.ucd_calib_cfg.once.start = cpu_to_le32(cfg);
2231 2232 2233 2234 2235

	return iwl_send_cmd(priv, &cmd);
}


Z
Zhu Yi 已提交
2236
/**
2237
 * iwl_alive_start - called after REPLY_ALIVE notification received
Z
Zhu Yi 已提交
2238
 *                   from protocol/runtime uCode (initialization uCode's
2239
 *                   Alive gets handled by iwl_init_alive_start()).
Z
Zhu Yi 已提交
2240
 */
2241
static void iwl_alive_start(struct iwl_priv *priv)
Z
Zhu Yi 已提交
2242
{
2243
	int ret = 0;
2244
	struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
Z
Zhu Yi 已提交
2245

2246
	IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
Z
Zhu Yi 已提交
2247 2248 2249 2250

	/* Initialize uCode has loaded Runtime uCode ... verify inst image.
	 * This is a paranoid check, because we would not have gotten the
	 * "runtime" alive if code weren't properly loaded.  */
2251
	if (iwl_verify_ucode(priv)) {
Z
Zhu Yi 已提交
2252 2253
		/* Runtime instruction load was bad;
		 * take it all the way back down so we can try again */
2254
		IWL_DEBUG_INFO(priv, "Bad runtime uCode load.\n");
Z
Zhu Yi 已提交
2255 2256 2257
		goto restart;
	}

2258 2259
	ret = priv->cfg->ops->lib->alive_notify(priv);
	if (ret) {
2260 2261
		IWL_WARN(priv,
			"Could not complete ALIVE transition [ntf]: %d\n", ret);
Z
Zhu Yi 已提交
2262 2263 2264
		goto restart;
	}

2265

2266
	/* After the ALIVE response, we can send host commands to the uCode */
Z
Zhu Yi 已提交
2267 2268
	set_bit(STATUS_ALIVE, &priv->status);

2269 2270
	/* Enable watchdog to monitor the driver tx queues */
	iwl_setup_watchdog(priv);
2271

2272
	if (iwl_is_rfkill(priv))
Z
Zhu Yi 已提交
2273 2274
		return;

2275
	/* download priority table before any calibration request */
2276 2277
	if (priv->cfg->bt_params &&
	    priv->cfg->bt_params->advanced_bt_coexist) {
2278 2279 2280 2281 2282 2283
		/* Configure Bluetooth device coexistence support */
		priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
		priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
		priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
		priv->cfg->ops->hcmd->send_bt_config(priv);
		priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS;
2284
		iwlagn_send_prio_tbl(priv);
2285 2286 2287 2288 2289 2290 2291

		/* FIXME: w/a to force change uCode BT state machine */
		iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
			BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
		iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_CLOSE,
			BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
	}
2292 2293 2294
	if (priv->hw_params.calib_rt_cfg)
		iwlagn_send_calib_cfg_rt(priv, priv->hw_params.calib_rt_cfg);

2295
	ieee80211_wake_queues(priv->hw);
Z
Zhu Yi 已提交
2296

2297
	priv->active_rate = IWL_RATES_MASK;
Z
Zhu Yi 已提交
2298

2299 2300 2301 2302
	/* Configure Tx antenna selection based on H/W config */
	if (priv->cfg->ops->hcmd->set_tx_ant)
		priv->cfg->ops->hcmd->set_tx_ant(priv, priv->cfg->valid_tx_ant);

2303
	if (iwl_is_associated_ctx(ctx)) {
G
Gregory Greenman 已提交
2304
		struct iwl_rxon_cmd *active_rxon =
2305
				(struct iwl_rxon_cmd *)&ctx->active;
2306
		/* apply any changes in staging */
2307
		ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
Z
Zhu Yi 已提交
2308 2309
		active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
	} else {
2310
		struct iwl_rxon_context *tmp;
Z
Zhu Yi 已提交
2311
		/* Initialize our rx_config data */
2312 2313
		for_each_context(priv, tmp)
			iwl_connection_init_rx_config(priv, tmp);
2314 2315

		if (priv->cfg->ops->hcmd->set_rxon_chain)
2316
			priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
Z
Zhu Yi 已提交
2317 2318
	}

2319 2320 2321 2322 2323
	if (!priv->cfg->bt_params || (priv->cfg->bt_params &&
	    !priv->cfg->bt_params->advanced_bt_coexist)) {
		/*
		 * default is 2-wire BT coexexistence support
		 */
2324 2325
		priv->cfg->ops->hcmd->send_bt_config(priv);
	}
Z
Zhu Yi 已提交
2326

2327 2328
	iwl_reset_run_time_calib(priv);

2329 2330
	set_bit(STATUS_READY, &priv->status);

Z
Zhu Yi 已提交
2331
	/* Configure the adapter for unassociated operation */
2332
	iwlcore_commit_rxon(priv, ctx);
Z
Zhu Yi 已提交
2333 2334

	/* At this point, the NIC is initialized and operational */
2335
	iwl_rf_kill_ct_config(priv);
2336

2337
	IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n");
2338
	wake_up_interruptible(&priv->wait_command_queue);
Z
Zhu Yi 已提交
2339

2340
	iwl_power_update_mode(priv, true);
2341 2342
	IWL_DEBUG_INFO(priv, "Updated power mode\n");

2343

Z
Zhu Yi 已提交
2344 2345 2346 2347 2348 2349
	return;

 restart:
	queue_work(priv->workqueue, &priv->restart);
}

2350
static void iwl_cancel_deferred_work(struct iwl_priv *priv);
Z
Zhu Yi 已提交
2351

2352
static void __iwl_down(struct iwl_priv *priv)
Z
Zhu Yi 已提交
2353 2354 2355 2356
{
	unsigned long flags;
	int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status);

2357
	IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n");
Z
Zhu Yi 已提交
2358

2359 2360 2361
	iwl_scan_cancel_timeout(priv, 200);

	exit_pending = test_and_set_bit(STATUS_EXIT_PENDING, &priv->status);
Z
Zhu Yi 已提交
2362

2363 2364
	/* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
	 * to prevent rearm timer */
2365
	del_timer_sync(&priv->watchdog);
2366

2367
	iwl_clear_ucode_stations(priv, NULL);
2368
	iwl_dealloc_bcast_stations(priv);
2369
	iwl_clear_driver_stations(priv);
Z
Zhu Yi 已提交
2370

2371
	/* reset BT coex data */
2372
	priv->bt_status = 0;
2373 2374 2375 2376 2377
	if (priv->cfg->bt_params)
		priv->bt_traffic_load =
			 priv->cfg->bt_params->bt_init_traffic_load;
	else
		priv->bt_traffic_load = 0;
2378 2379
	priv->bt_full_concurrent = false;
	priv->bt_ci_compliance = 0;
2380

Z
Zhu Yi 已提交
2381 2382 2383 2384 2385 2386 2387 2388 2389
	/* Unblock any waiting calls */
	wake_up_interruptible_all(&priv->wait_command_queue);

	/* Wipe out the EXIT_PENDING status bit if we are not actually
	 * exiting the module */
	if (!exit_pending)
		clear_bit(STATUS_EXIT_PENDING, &priv->status);

	/* stop and reset the on-board processor */
2390
	iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
Z
Zhu Yi 已提交
2391 2392

	/* tell the device to stop sending interrupts */
2393
	spin_lock_irqsave(&priv->lock, flags);
2394
	iwl_disable_interrupts(priv);
2395 2396
	spin_unlock_irqrestore(&priv->lock, flags);
	iwl_synchronize_irq(priv);
Z
Zhu Yi 已提交
2397 2398 2399 2400

	if (priv->mac80211_registered)
		ieee80211_stop_queues(priv->hw);

2401
	/* If we have not previously called iwl_init() then
J
Johannes Berg 已提交
2402
	 * clear all bits but the RF Kill bit and return */
2403
	if (!iwl_is_init(priv)) {
Z
Zhu Yi 已提交
2404 2405
		priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) <<
					STATUS_RF_KILL_HW |
2406 2407
			       test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
					STATUS_GEO_CONFIGURED |
2408 2409
			       test_bit(STATUS_EXIT_PENDING, &priv->status) <<
					STATUS_EXIT_PENDING;
Z
Zhu Yi 已提交
2410 2411 2412
		goto exit;
	}

2413
	/* ...otherwise clear out all the status bits but the RF Kill
J
Johannes Berg 已提交
2414
	 * bit and continue taking the NIC down. */
Z
Zhu Yi 已提交
2415 2416
	priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
				STATUS_RF_KILL_HW |
2417 2418
			test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
				STATUS_GEO_CONFIGURED |
Z
Zhu Yi 已提交
2419
			test_bit(STATUS_FW_ERROR, &priv->status) <<
2420 2421 2422
				STATUS_FW_ERROR |
		       test_bit(STATUS_EXIT_PENDING, &priv->status) <<
				STATUS_EXIT_PENDING;
Z
Zhu Yi 已提交
2423

M
Mohamed Abbas 已提交
2424
	/* device going down, Stop using ICT table */
2425 2426
	if (priv->cfg->ops->lib->isr_ops.disable)
		priv->cfg->ops->lib->isr_ops.disable(priv);
Z
Zhu Yi 已提交
2427

2428
	iwlagn_txq_ctx_stop(priv);
2429
	iwlagn_rxq_stop(priv);
Z
Zhu Yi 已提交
2430

B
Ben Cahill 已提交
2431 2432
	/* Power-down device's busmaster DMA clocks */
	iwl_write_prph(priv, APMG_CLK_DIS_REG, APMG_CLK_VAL_DMA_CLK_RQT);
Z
Zhu Yi 已提交
2433 2434
	udelay(5);

B
Ben Cahill 已提交
2435 2436 2437
	/* Make sure (redundant) we've released our request to stay awake */
	iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);

2438
	/* Stop the device, and put it in low power state */
J
Johannes Berg 已提交
2439
	iwl_apm_stop(priv);
2440

Z
Zhu Yi 已提交
2441
 exit:
2442
	memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp));
Z
Zhu Yi 已提交
2443

2444
	dev_kfree_skb(priv->beacon_skb);
2445
	priv->beacon_skb = NULL;
Z
Zhu Yi 已提交
2446 2447

	/* clear out any free frames */
2448
	iwl_clear_free_frames(priv);
Z
Zhu Yi 已提交
2449 2450
}

2451
static void iwl_down(struct iwl_priv *priv)
Z
Zhu Yi 已提交
2452 2453
{
	mutex_lock(&priv->mutex);
2454
	__iwl_down(priv);
Z
Zhu Yi 已提交
2455
	mutex_unlock(&priv->mutex);
2456

2457
	iwl_cancel_deferred_work(priv);
Z
Zhu Yi 已提交
2458 2459
}

M
Mohamed Abbas 已提交
2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487
#define HW_READY_TIMEOUT (50)

static int iwl_set_hw_ready(struct iwl_priv *priv)
{
	int ret = 0;

	iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
		CSR_HW_IF_CONFIG_REG_BIT_NIC_READY);

	/* See if we got it */
	ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG,
				CSR_HW_IF_CONFIG_REG_BIT_NIC_READY,
				CSR_HW_IF_CONFIG_REG_BIT_NIC_READY,
				HW_READY_TIMEOUT);
	if (ret != -ETIMEDOUT)
		priv->hw_ready = true;
	else
		priv->hw_ready = false;

	IWL_DEBUG_INFO(priv, "hardware %s\n",
		      (priv->hw_ready == 1) ? "ready" : "not ready");
	return ret;
}

static int iwl_prepare_card_hw(struct iwl_priv *priv)
{
	int ret = 0;

2488
	IWL_DEBUG_INFO(priv, "iwl_prepare_card_hw enter\n");
M
Mohamed Abbas 已提交
2489

2490 2491 2492 2493 2494
	ret = iwl_set_hw_ready(priv);
	if (priv->hw_ready)
		return ret;

	/* If HW is not ready, prepare the conditions to check again */
M
Mohamed Abbas 已提交
2495 2496 2497 2498 2499 2500 2501
	iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
			CSR_HW_IF_CONFIG_REG_PREPARE);

	ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG,
			~CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE,
			CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE, 150000);

2502
	/* HW should be ready by now, check again. */
M
Mohamed Abbas 已提交
2503 2504 2505 2506 2507 2508
	if (ret != -ETIMEDOUT)
		iwl_set_hw_ready(priv);

	return ret;
}

Z
Zhu Yi 已提交
2509 2510
#define MAX_HW_RESTARTS 5

2511
static int __iwl_up(struct iwl_priv *priv)
Z
Zhu Yi 已提交
2512
{
2513
	struct iwl_rxon_context *ctx;
2514 2515
	int i;
	int ret;
Z
Zhu Yi 已提交
2516 2517

	if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
2518
		IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
Z
Zhu Yi 已提交
2519 2520 2521
		return -EIO;
	}

2522
	if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) {
2523
		IWL_ERR(priv, "ucode not available for device bringup\n");
2524 2525 2526
		return -EIO;
	}

2527
	for_each_context(priv, ctx) {
2528
		ret = iwlagn_alloc_bcast_station(priv, ctx);
2529 2530 2531 2532 2533
		if (ret) {
			iwl_dealloc_bcast_stations(priv);
			return ret;
		}
	}
2534

M
Mohamed Abbas 已提交
2535 2536 2537 2538 2539 2540 2541
	iwl_prepare_card_hw(priv);

	if (!priv->hw_ready) {
		IWL_WARN(priv, "Exit HW not ready\n");
		return -EIO;
	}

2542
	/* If platform's RF_KILL switch is NOT set to KILL */
2543
	if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
2544
		clear_bit(STATUS_RF_KILL_HW, &priv->status);
2545
	else
2546
		set_bit(STATUS_RF_KILL_HW, &priv->status);
2547

2548
	if (iwl_is_rfkill(priv)) {
J
Johannes Berg 已提交
2549 2550
		wiphy_rfkill_set_hw_state(priv->hw->wiphy, true);

2551
		iwl_enable_interrupts(priv);
J
Johannes Berg 已提交
2552
		IWL_WARN(priv, "Radio disabled by HW RF Kill switch\n");
2553
		return 0;
Z
Zhu Yi 已提交
2554 2555
	}

2556
	iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
Z
Zhu Yi 已提交
2557

2558
	/* must be initialised before iwl_hw_nic_init */
J
Johannes Berg 已提交
2559 2560 2561 2562
	if (priv->valid_contexts != BIT(IWL_RXON_CTX_BSS))
		priv->cmd_queue = IWL_IPAN_CMD_QUEUE_NUM;
	else
		priv->cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM;
2563

2564
	ret = iwlagn_hw_nic_init(priv);
2565
	if (ret) {
2566
		IWL_ERR(priv, "Unable to init nic\n");
2567
		return ret;
Z
Zhu Yi 已提交
2568 2569 2570
	}

	/* make sure rfkill handshake bits are cleared */
2571 2572
	iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
	iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
Z
Zhu Yi 已提交
2573 2574 2575
		    CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);

	/* clear (again), then enable host interrupts */
2576
	iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
2577
	iwl_enable_interrupts(priv);
Z
Zhu Yi 已提交
2578 2579

	/* really make sure rfkill handshake bits are cleared */
2580 2581
	iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
	iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
Z
Zhu Yi 已提交
2582 2583 2584 2585 2586

	/* Copy original ucode data image from disk into backup cache.
	 * This will be used to initialize the on-board processor's
	 * data SRAM for a clean start when the runtime program first loads. */
	memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr,
2587
	       priv->ucode_data.len);
Z
Zhu Yi 已提交
2588 2589 2590 2591 2592 2593

	for (i = 0; i < MAX_HW_RESTARTS; i++) {

		/* load bootstrap state machine,
		 * load bootstrap program into processor's memory,
		 * prepare to load the "initialize" uCode */
2594
		ret = priv->cfg->ops->lib->load_ucode(priv);
Z
Zhu Yi 已提交
2595

2596
		if (ret) {
2597 2598
			IWL_ERR(priv, "Unable to set up bootstrap uCode: %d\n",
				ret);
Z
Zhu Yi 已提交
2599 2600 2601 2602
			continue;
		}

		/* start card; "initialize" will load runtime ucode */
2603
		iwl_nic_start(priv);
Z
Zhu Yi 已提交
2604

2605
		IWL_DEBUG_INFO(priv, DRV_NAME " is coming up\n");
Z
Zhu Yi 已提交
2606 2607 2608 2609 2610

		return 0;
	}

	set_bit(STATUS_EXIT_PENDING, &priv->status);
2611
	__iwl_down(priv);
M
Mohamed Abbas 已提交
2612
	clear_bit(STATUS_EXIT_PENDING, &priv->status);
Z
Zhu Yi 已提交
2613 2614 2615

	/* tried to restart and config the device for as long as our
	 * patience could withstand */
2616
	IWL_ERR(priv, "Unable to initialize device after %d attempts.\n", i);
Z
Zhu Yi 已提交
2617 2618 2619 2620 2621 2622 2623 2624 2625 2626
	return -EIO;
}


/*****************************************************************************
 *
 * Workqueue callbacks
 *
 *****************************************************************************/

2627
static void iwl_bg_init_alive_start(struct work_struct *data)
Z
Zhu Yi 已提交
2628
{
2629 2630
	struct iwl_priv *priv =
	    container_of(data, struct iwl_priv, init_alive_start.work);
Z
Zhu Yi 已提交
2631 2632 2633 2634 2635

	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
		return;

	mutex_lock(&priv->mutex);
2636
	priv->cfg->ops->lib->init_alive_start(priv);
Z
Zhu Yi 已提交
2637 2638 2639
	mutex_unlock(&priv->mutex);
}

2640
static void iwl_bg_alive_start(struct work_struct *data)
Z
Zhu Yi 已提交
2641
{
2642 2643
	struct iwl_priv *priv =
	    container_of(data, struct iwl_priv, alive_start.work);
Z
Zhu Yi 已提交
2644 2645 2646 2647

	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
		return;

M
Mohamed Abbas 已提交
2648
	/* enable dram interrupt */
2649 2650
	if (priv->cfg->ops->lib->isr_ops.reset)
		priv->cfg->ops->lib->isr_ops.reset(priv);
M
Mohamed Abbas 已提交
2651

Z
Zhu Yi 已提交
2652
	mutex_lock(&priv->mutex);
2653
	iwl_alive_start(priv);
Z
Zhu Yi 已提交
2654 2655 2656
	mutex_unlock(&priv->mutex);
}

2657 2658 2659 2660 2661 2662 2663 2664 2665 2666 2667 2668 2669 2670
static void iwl_bg_run_time_calib_work(struct work_struct *work)
{
	struct iwl_priv *priv = container_of(work, struct iwl_priv,
			run_time_calib_work);

	mutex_lock(&priv->mutex);

	if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
	    test_bit(STATUS_SCANNING, &priv->status)) {
		mutex_unlock(&priv->mutex);
		return;
	}

	if (priv->start_calib) {
2671
		if (iwl_bt_statistics(priv)) {
2672 2673 2674 2675 2676 2677 2678 2679 2680 2681
			iwl_chain_noise_calibration(priv,
					(void *)&priv->_agn.statistics_bt);
			iwl_sensitivity_calibration(priv,
					(void *)&priv->_agn.statistics_bt);
		} else {
			iwl_chain_noise_calibration(priv,
					(void *)&priv->_agn.statistics);
			iwl_sensitivity_calibration(priv,
					(void *)&priv->_agn.statistics);
		}
2682 2683 2684 2685 2686
	}

	mutex_unlock(&priv->mutex);
}

2687
static void iwl_bg_restart(struct work_struct *data)
Z
Zhu Yi 已提交
2688
{
2689
	struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
Z
Zhu Yi 已提交
2690 2691 2692 2693

	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
		return;

J
Johannes Berg 已提交
2694
	if (test_and_clear_bit(STATUS_FW_ERROR, &priv->status)) {
2695
		struct iwl_rxon_context *ctx;
2696
		bool bt_full_concurrent;
2697
		u8 bt_ci_compliance;
2698
		u8 bt_load;
2699
		u8 bt_status;
2700

J
Johannes Berg 已提交
2701
		mutex_lock(&priv->mutex);
2702 2703
		for_each_context(priv, ctx)
			ctx->vif = NULL;
J
Johannes Berg 已提交
2704
		priv->is_open = 0;
2705 2706 2707 2708 2709 2710 2711 2712 2713 2714

		/*
		 * __iwl_down() will clear the BT status variables,
		 * which is correct, but when we restart we really
		 * want to keep them so restore them afterwards.
		 *
		 * The restart process will later pick them up and
		 * re-configure the hw when we reconfigure the BT
		 * command.
		 */
2715 2716
		bt_full_concurrent = priv->bt_full_concurrent;
		bt_ci_compliance = priv->bt_ci_compliance;
2717
		bt_load = priv->bt_traffic_load;
2718
		bt_status = priv->bt_status;
2719

2720
		__iwl_down(priv);
2721

2722 2723
		priv->bt_full_concurrent = bt_full_concurrent;
		priv->bt_ci_compliance = bt_ci_compliance;
2724
		priv->bt_traffic_load = bt_load;
2725
		priv->bt_status = bt_status;
2726

J
Johannes Berg 已提交
2727
		mutex_unlock(&priv->mutex);
2728
		iwl_cancel_deferred_work(priv);
J
Johannes Berg 已提交
2729 2730 2731
		ieee80211_restart_hw(priv->hw);
	} else {
		iwl_down(priv);
J
Johannes Berg 已提交
2732 2733 2734 2735 2736 2737 2738

		if (test_bit(STATUS_EXIT_PENDING, &priv->status))
			return;

		mutex_lock(&priv->mutex);
		__iwl_up(priv);
		mutex_unlock(&priv->mutex);
J
Johannes Berg 已提交
2739
	}
Z
Zhu Yi 已提交
2740 2741
}

2742
static void iwl_bg_rx_replenish(struct work_struct *data)
Z
Zhu Yi 已提交
2743
{
2744 2745
	struct iwl_priv *priv =
	    container_of(data, struct iwl_priv, rx_replenish);
Z
Zhu Yi 已提交
2746 2747 2748 2749 2750

	if (test_bit(STATUS_EXIT_PENDING, &priv->status))
		return;

	mutex_lock(&priv->mutex);
2751
	iwlagn_rx_replenish(priv);
Z
Zhu Yi 已提交
2752 2753 2754
	mutex_unlock(&priv->mutex);
}

J
Johannes Berg 已提交
2755 2756 2757 2758 2759 2760 2761 2762 2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 2773 2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 2817 2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839
static int iwl_mac_offchannel_tx(struct ieee80211_hw *hw, struct sk_buff *skb,
				 struct ieee80211_channel *chan,
				 enum nl80211_channel_type channel_type,
				 unsigned int wait)
{
	struct iwl_priv *priv = hw->priv;
	int ret;

	/* Not supported if we don't have PAN */
	if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN))) {
		ret = -EOPNOTSUPP;
		goto free;
	}

	/* Not supported on pre-P2P firmware */
	if (!(priv->contexts[IWL_RXON_CTX_PAN].interface_modes &
					BIT(NL80211_IFTYPE_P2P_CLIENT))) {
		ret = -EOPNOTSUPP;
		goto free;
	}

	mutex_lock(&priv->mutex);

	if (!priv->contexts[IWL_RXON_CTX_PAN].is_active) {
		/*
		 * If the PAN context is free, use the normal
		 * way of doing remain-on-channel offload + TX.
		 */
		ret = 1;
		goto out;
	}

	/* TODO: queue up if scanning? */
	if (test_bit(STATUS_SCANNING, &priv->status) ||
	    priv->_agn.offchan_tx_skb) {
		ret = -EBUSY;
		goto out;
	}

	/*
	 * max_scan_ie_len doesn't include the blank SSID or the header,
	 * so need to add that again here.
	 */
	if (skb->len > hw->wiphy->max_scan_ie_len + 24 + 2) {
		ret = -ENOBUFS;
		goto out;
	}

	priv->_agn.offchan_tx_skb = skb;
	priv->_agn.offchan_tx_timeout = wait;
	priv->_agn.offchan_tx_chan = chan;

	ret = iwl_scan_initiate(priv, priv->contexts[IWL_RXON_CTX_PAN].vif,
				IWL_SCAN_OFFCH_TX, chan->band);
	if (ret)
		priv->_agn.offchan_tx_skb = NULL;
 out:
	mutex_unlock(&priv->mutex);
 free:
	if (ret < 0)
		kfree_skb(skb);

	return ret;
}

static int iwl_mac_offchannel_tx_cancel_wait(struct ieee80211_hw *hw)
{
	struct iwl_priv *priv = hw->priv;
	int ret;

	mutex_lock(&priv->mutex);

	if (!priv->_agn.offchan_tx_skb)
		return -EINVAL;

	priv->_agn.offchan_tx_skb = NULL;

	ret = iwl_scan_cancel_timeout(priv, 200);
	if (ret)
		ret = -EIO;
	mutex_unlock(&priv->mutex);

	return ret;
}

Z
Zhu Yi 已提交
2840 2841 2842 2843 2844 2845
/*****************************************************************************
 *
 * mac80211 entry point functions
 *
 *****************************************************************************/

2846
#define UCODE_READY_TIMEOUT	(4 * HZ)
2847

2848 2849 2850 2851
/*
 * Not a mac80211 entry point function, but it fits in with all the
 * other mac80211 functions grouped here.
 */
2852 2853
static int iwl_mac_setup_register(struct iwl_priv *priv,
				  struct iwlagn_ucode_capabilities *capa)
2854 2855 2856
{
	int ret;
	struct ieee80211_hw *hw = priv->hw;
2857 2858
	struct iwl_rxon_context *ctx;

2859 2860 2861 2862 2863
	hw->rate_control_algorithm = "iwl-agn-rs";

	/* Tell mac80211 our characteristics */
	hw->flags = IEEE80211_HW_SIGNAL_DBM |
		    IEEE80211_HW_AMPDU_AGGREGATION |
2864
		    IEEE80211_HW_NEED_DTIM_PERIOD |
2865 2866
		    IEEE80211_HW_SPECTRUM_MGMT |
		    IEEE80211_HW_REPORTS_TX_ACK_STATUS;
2867

2868 2869
	hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF;

2870
	if (!priv->cfg->base_params->broken_powersave)
2871 2872 2873
		hw->flags |= IEEE80211_HW_SUPPORTS_PS |
			     IEEE80211_HW_SUPPORTS_DYNAMIC_PS;

J
Johannes Berg 已提交
2874 2875 2876 2877
	if (priv->cfg->sku & IWL_SKU_N)
		hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
			     IEEE80211_HW_SUPPORTS_STATIC_SMPS;

2878
	hw->sta_data_size = sizeof(struct iwl_station_priv);
J
Johannes Berg 已提交
2879 2880
	hw->vif_data_size = sizeof(struct iwl_vif_priv);

2881 2882 2883 2884
	for_each_context(priv, ctx) {
		hw->wiphy->interface_modes |= ctx->interface_modes;
		hw->wiphy->interface_modes |= ctx->exclusive_interface_modes;
	}
2885

2886 2887
	hw->wiphy->max_remain_on_channel_duration = 1000;

R
Reinette Chatre 已提交
2888
	hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY |
J
Johannes Berg 已提交
2889 2890
			    WIPHY_FLAG_DISABLE_BEACON_HINTS |
			    WIPHY_FLAG_IBSS_RSN;
2891 2892 2893 2894 2895

	/*
	 * For now, disable PS by default because it affects
	 * RX performance significantly.
	 */
J
Johannes Berg 已提交
2896
	hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
2897

2898
	hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
2899
	/* we create the 802.11 header and a zero-length SSID element */
2900
	hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 2;
2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913

	/* Default value; 4 EDCA QOS priorities */
	hw->queues = 4;

	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];

2914 2915
	iwl_leds_init(priv);

2916 2917 2918 2919 2920 2921 2922 2923 2924 2925 2926
	ret = ieee80211_register_hw(priv->hw);
	if (ret) {
		IWL_ERR(priv, "Failed to register hw (error %d)\n", ret);
		return ret;
	}
	priv->mac80211_registered = 1;

	return 0;
}


2927
int iwlagn_mac_start(struct ieee80211_hw *hw)
Z
Zhu Yi 已提交
2928
{
2929
	struct iwl_priv *priv = hw->priv;
2930
	int ret;
Z
Zhu Yi 已提交
2931

2932
	IWL_DEBUG_MAC80211(priv, "enter\n");
Z
Zhu Yi 已提交
2933 2934 2935

	/* we should be verifying the device is ready to be opened */
	mutex_lock(&priv->mutex);
2936
	ret = __iwl_up(priv);
Z
Zhu Yi 已提交
2937
	mutex_unlock(&priv->mutex);
2938

2939
	if (ret)
2940
		return ret;
2941

2942 2943 2944
	if (iwl_is_rfkill(priv))
		goto out;

2945
	IWL_DEBUG_INFO(priv, "Start UP work done.\n");
2946

2947
	/* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from
2948
	 * mac80211 will not be run successfully. */
2949 2950 2951 2952 2953
	ret = wait_event_interruptible_timeout(priv->wait_command_queue,
			test_bit(STATUS_READY, &priv->status),
			UCODE_READY_TIMEOUT);
	if (!ret) {
		if (!test_bit(STATUS_READY, &priv->status)) {
2954
			IWL_ERR(priv, "START_ALIVE timeout after %dms.\n",
2955
				jiffies_to_msecs(UCODE_READY_TIMEOUT));
2956
			return -ETIMEDOUT;
2957
		}
2958
	}
T
Tomas Winkler 已提交
2959

2960
	iwlagn_led_enable(priv);
J
Johannes Berg 已提交
2961

2962
out:
T
Tomas Winkler 已提交
2963
	priv->is_open = 1;
2964
	IWL_DEBUG_MAC80211(priv, "leave\n");
Z
Zhu Yi 已提交
2965 2966 2967
	return 0;
}

2968
void iwlagn_mac_stop(struct ieee80211_hw *hw)
Z
Zhu Yi 已提交
2969
{
2970
	struct iwl_priv *priv = hw->priv;
Z
Zhu Yi 已提交
2971

2972
	IWL_DEBUG_MAC80211(priv, "enter\n");
M
Mohamed Abbas 已提交
2973

J
Johannes Berg 已提交
2974
	if (!priv->is_open)
2975 2976
		return;

Z
Zhu Yi 已提交
2977
	priv->is_open = 0;
2978

2979
	iwl_down(priv);
2980 2981

	flush_workqueue(priv->workqueue);
2982

2983 2984
	/* User space software may expect getting rfkill changes
	 * even if interface is down */
2985
	iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
2986
	iwl_enable_rfkill_int(priv);
M
Mohamed Abbas 已提交
2987

2988
	IWL_DEBUG_MAC80211(priv, "leave\n");
Z
Zhu Yi 已提交
2989 2990
}

2991
void iwlagn_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
Z
Zhu Yi 已提交
2992
{
2993
	struct iwl_priv *priv = hw->priv;
Z
Zhu Yi 已提交
2994

2995
	IWL_DEBUG_MACDUMP(priv, "enter\n");
Z
Zhu Yi 已提交
2996

2997
	IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
2998
		     ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
Z
Zhu Yi 已提交
2999

3000
	if (iwlagn_tx_skb(priv, skb))
Z
Zhu Yi 已提交
3001 3002
		dev_kfree_skb_any(skb);

3003
	IWL_DEBUG_MACDUMP(priv, "leave\n");
Z
Zhu Yi 已提交
3004 3005
}

3006 3007 3008 3009 3010
void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw,
				struct ieee80211_vif *vif,
				struct ieee80211_key_conf *keyconf,
				struct ieee80211_sta *sta,
				u32 iv32, u16 *phase1key)
3011
{
3012
	struct iwl_priv *priv = hw->priv;
3013 3014
	struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;

3015
	IWL_DEBUG_MAC80211(priv, "enter\n");
3016

3017
	iwl_update_tkip_key(priv, vif_priv->ctx, keyconf, sta,
3018
			    iv32, phase1key);
3019

3020
	IWL_DEBUG_MAC80211(priv, "leave\n");
3021 3022
}

3023 3024 3025
int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
		       struct ieee80211_vif *vif, struct ieee80211_sta *sta,
		       struct ieee80211_key_conf *key)
Z
Zhu Yi 已提交
3026
{
3027
	struct iwl_priv *priv = hw->priv;
3028
	struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
3029
	struct iwl_rxon_context *ctx = vif_priv->ctx;
3030 3031 3032
	int ret;
	u8 sta_id;
	bool is_default_wep_key = false;
Z
Zhu Yi 已提交
3033

3034
	IWL_DEBUG_MAC80211(priv, "enter\n");
Z
Zhu Yi 已提交
3035

3036
	if (priv->cfg->mod_params->sw_crypto) {
3037
		IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n");
Z
Zhu Yi 已提交
3038 3039 3040
		return -EOPNOTSUPP;
	}

J
Johannes Berg 已提交
3041 3042 3043 3044 3045 3046 3047 3048
	/*
	 * To support IBSS RSN, don't program group keys in IBSS, the
	 * hardware will then not attempt to decrypt the frames.
	 */
	if (vif->type == NL80211_IFTYPE_ADHOC &&
	    !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
		return -EOPNOTSUPP;

3049
	sta_id = iwl_sta_id_or_broadcast(priv, vif_priv->ctx, sta);
3050 3051
	if (sta_id == IWL_INVALID_STATION)
		return -EINVAL;
Z
Zhu Yi 已提交
3052

3053
	mutex_lock(&priv->mutex);
3054
	iwl_scan_cancel_timeout(priv, 100);
3055

J
Johannes Berg 已提交
3056 3057
	/*
	 * If we are getting WEP group key and we didn't receive any key mapping
3058 3059
	 * so far, we are in legacy wep mode (group key only), otherwise we are
	 * in 1X mode.
J
Johannes Berg 已提交
3060 3061
	 * In legacy wep mode, we use another host command to the uCode.
	 */
3062 3063
	if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
	     key->cipher == WLAN_CIPHER_SUITE_WEP104) &&
3064
	    !sta) {
3065
		if (cmd == SET_KEY)
3066
			is_default_wep_key = !ctx->key_mapping_keys;
3067
		else
3068 3069
			is_default_wep_key =
					(key->hw_key_idx == HW_KEY_DEFAULT);
3070
	}
3071

Z
Zhu Yi 已提交
3072
	switch (cmd) {
3073
	case SET_KEY:
3074
		if (is_default_wep_key)
3075
			ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key);
3076
		else
3077 3078
			ret = iwl_set_dynamic_key(priv, vif_priv->ctx,
						  key, sta_id);
3079

3080
		IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n");
Z
Zhu Yi 已提交
3081 3082
		break;
	case DISABLE_KEY:
3083
		if (is_default_wep_key)
3084
			ret = iwl_remove_default_wep_key(priv, ctx, key);
3085
		else
3086
			ret = iwl_remove_dynamic_key(priv, ctx, key, sta_id);
3087

3088
		IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n");
Z
Zhu Yi 已提交
3089 3090
		break;
	default:
3091
		ret = -EINVAL;
Z
Zhu Yi 已提交
3092 3093
	}

3094
	mutex_unlock(&priv->mutex);
3095
	IWL_DEBUG_MAC80211(priv, "leave\n");
Z
Zhu Yi 已提交
3096

3097
	return ret;
Z
Zhu Yi 已提交
3098 3099
}

3100 3101 3102
int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw,
			    struct ieee80211_vif *vif,
			    enum ieee80211_ampdu_mlme_action action,
3103 3104
			    struct ieee80211_sta *sta, u16 tid, u16 *ssn,
			    u8 buf_size)
3105 3106
{
	struct iwl_priv *priv = hw->priv;
3107
	int ret = -EINVAL;
3108
	struct iwl_station_priv *sta_priv = (void *) sta->drv_priv;
3109

3110
	IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n",
J
Johannes Berg 已提交
3111
		     sta->addr, tid);
3112 3113 3114 3115

	if (!(priv->cfg->sku & IWL_SKU_N))
		return -EACCES;

3116 3117
	mutex_lock(&priv->mutex);

3118 3119
	switch (action) {
	case IEEE80211_AMPDU_RX_START:
3120
		IWL_DEBUG_HT(priv, "start Rx\n");
3121 3122
		ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn);
		break;
3123
	case IEEE80211_AMPDU_RX_STOP:
3124
		IWL_DEBUG_HT(priv, "stop Rx\n");
3125
		ret = iwl_sta_rx_agg_stop(priv, sta, tid);
3126
		if (test_bit(STATUS_EXIT_PENDING, &priv->status))
3127 3128
			ret = 0;
		break;
3129
	case IEEE80211_AMPDU_TX_START:
3130
		IWL_DEBUG_HT(priv, "start Tx\n");
3131
		ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn);
W
Wey-Yi Guy 已提交
3132 3133 3134 3135 3136
		if (ret == 0) {
			priv->_agn.agg_tids_count++;
			IWL_DEBUG_HT(priv, "priv->_agn.agg_tids_count = %u\n",
				     priv->_agn.agg_tids_count);
		}
3137
		break;
3138
	case IEEE80211_AMPDU_TX_STOP:
3139
		IWL_DEBUG_HT(priv, "stop Tx\n");
3140
		ret = iwlagn_tx_agg_stop(priv, vif, sta, tid);
W
Wey-Yi Guy 已提交
3141 3142 3143 3144 3145
		if ((ret == 0) && (priv->_agn.agg_tids_count > 0)) {
			priv->_agn.agg_tids_count--;
			IWL_DEBUG_HT(priv, "priv->_agn.agg_tids_count = %u\n",
				     priv->_agn.agg_tids_count);
		}
3146
		if (test_bit(STATUS_EXIT_PENDING, &priv->status))
3147
			ret = 0;
3148 3149
		if (priv->cfg->ht_params &&
		    priv->cfg->ht_params->use_rts_for_aggregation) {
J
Johannes Berg 已提交
3150 3151 3152 3153 3154 3155 3156 3157
			struct iwl_station_priv *sta_priv =
				(void *) sta->drv_priv;
			/*
			 * switch off RTS/CTS if it was previously enabled
			 */

			sta_priv->lq_sta.lq.general_params.flags &=
				~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK;
3158 3159
			iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif),
					&sta_priv->lq_sta.lq, CMD_ASYNC, false);
J
Johannes Berg 已提交
3160
		}
3161
		break;
3162
	case IEEE80211_AMPDU_TX_OPERATIONAL:
3163 3164 3165 3166
		buf_size = min_t(int, buf_size, LINK_QUAL_AGG_FRAME_LIMIT_DEF);

		iwlagn_txq_agg_queue_setup(priv, sta, tid, buf_size);

3167 3168 3169 3170 3171 3172 3173 3174 3175 3176 3177 3178 3179 3180 3181 3182 3183 3184 3185 3186
		/*
		 * If the limit is 0, then it wasn't initialised yet,
		 * use the default. We can do that since we take the
		 * minimum below, and we don't want to go above our
		 * default due to hardware restrictions.
		 */
		if (sta_priv->max_agg_bufsize == 0)
			sta_priv->max_agg_bufsize =
				LINK_QUAL_AGG_FRAME_LIMIT_DEF;

		/*
		 * Even though in theory the peer could have different
		 * aggregation reorder buffer sizes for different sessions,
		 * our ucode doesn't allow for that and has a global limit
		 * for each station. Therefore, use the minimum of all the
		 * aggregation sessions and our default value.
		 */
		sta_priv->max_agg_bufsize =
			min(sta_priv->max_agg_bufsize, buf_size);

3187 3188
		if (priv->cfg->ht_params &&
		    priv->cfg->ht_params->use_rts_for_aggregation) {
3189 3190 3191 3192
			/*
			 * switch to RTS/CTS if it is the prefer protection
			 * method for HT traffic
			 */
J
Johannes Berg 已提交
3193 3194 3195

			sta_priv->lq_sta.lq.general_params.flags |=
				LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK;
3196
		}
3197 3198 3199 3200 3201 3202

		sta_priv->lq_sta.lq.agg_params.agg_frame_cnt_limit =
			sta_priv->max_agg_bufsize;

		iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif),
				&sta_priv->lq_sta.lq, CMD_ASYNC, false);
3203
		ret = 0;
3204 3205
		break;
	}
3206 3207 3208
	mutex_unlock(&priv->mutex);

	return ret;
3209
}
3210

3211 3212 3213
int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
		       struct ieee80211_vif *vif,
		       struct ieee80211_sta *sta)
3214 3215 3216
{
	struct iwl_priv *priv = hw->priv;
	struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
3217
	struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
3218
	bool is_ap = vif->type == NL80211_IFTYPE_STATION;
3219 3220 3221 3222 3223
	int ret;
	u8 sta_id;

	IWL_DEBUG_INFO(priv, "received request to add station %pM\n",
			sta->addr);
3224 3225 3226 3227
	mutex_lock(&priv->mutex);
	IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n",
			sta->addr);
	sta_priv->common.sta_id = IWL_INVALID_STATION;
3228 3229 3230 3231 3232

	atomic_set(&sta_priv->pending_frames, 0);
	if (vif->type == NL80211_IFTYPE_AP)
		sta_priv->client = true;

3233
	ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr,
3234
				     is_ap, sta, &sta_id);
3235 3236 3237 3238
	if (ret) {
		IWL_ERR(priv, "Unable to add station %pM (%d)\n",
			sta->addr, ret);
		/* Should we return success if return code is EEXIST ? */
3239
		mutex_unlock(&priv->mutex);
3240 3241 3242
		return ret;
	}

J
Johannes Berg 已提交
3243 3244
	sta_priv->common.sta_id = sta_id;

3245
	/* Initialize rate scaling */
3246
	IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n",
3247 3248
		       sta->addr);
	iwl_rs_rate_init(priv, sta, sta_id);
3249
	mutex_unlock(&priv->mutex);
3250

J
Johannes Berg 已提交
3251
	return 0;
3252 3253
}

3254 3255
void iwlagn_mac_channel_switch(struct ieee80211_hw *hw,
			       struct ieee80211_channel_switch *ch_switch)
3256 3257 3258 3259
{
	struct iwl_priv *priv = hw->priv;
	const struct iwl_channel_info *ch_info;
	struct ieee80211_conf *conf = &hw->conf;
3260
	struct ieee80211_channel *channel = ch_switch->channel;
3261
	struct iwl_ht_config *ht_conf = &priv->current_ht_config;
3262 3263 3264 3265 3266 3267 3268 3269 3270
	/*
	 * MULTI-FIXME
	 * When we add support for multiple interfaces, we need to
	 * revisit this. The channel switch command in the device
	 * only affects the BSS context, but what does that really
	 * mean? And what if we get a CSA on the second interface?
	 * This needs a lot of work.
	 */
	struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
3271 3272 3273 3274 3275 3276 3277 3278 3279 3280 3281 3282
	u16 ch;
	unsigned long flags = 0;

	IWL_DEBUG_MAC80211(priv, "enter\n");

	if (iwl_is_rfkill(priv))
		goto out_exit;

	if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
	    test_bit(STATUS_SCANNING, &priv->status))
		goto out_exit;

3283
	if (!iwl_is_associated_ctx(ctx))
3284 3285 3286 3287 3288 3289 3290 3291 3292
		goto out_exit;

	/* channel switch in progress */
	if (priv->switch_rxon.switch_in_progress == true)
		goto out_exit;

	mutex_lock(&priv->mutex);
	if (priv->cfg->ops->lib->set_channel_switch) {

3293
		ch = channel->hw_value;
3294
		if (le16_to_cpu(ctx->active.channel) != ch) {
3295
			ch_info = iwl_get_channel_info(priv,
3296
						       channel->band,
3297 3298 3299 3300 3301 3302 3303 3304 3305 3306
						       ch);
			if (!is_channel_valid(ch_info)) {
				IWL_DEBUG_MAC80211(priv, "invalid channel\n");
				goto out;
			}
			spin_lock_irqsave(&priv->lock, flags);

			priv->current_ht_config.smps = conf->smps_mode;

			/* Configure HT40 channels */
3307 3308
			ctx->ht.enabled = conf_is_ht(conf);
			if (ctx->ht.enabled) {
3309
				if (conf_is_ht40_minus(conf)) {
3310
					ctx->ht.extension_chan_offset =
3311
						IEEE80211_HT_PARAM_CHA_SEC_BELOW;
3312
					ctx->ht.is_40mhz = true;
3313
				} else if (conf_is_ht40_plus(conf)) {
3314
					ctx->ht.extension_chan_offset =
3315
						IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
3316
					ctx->ht.is_40mhz = true;
3317
				} else {
3318
					ctx->ht.extension_chan_offset =
3319
						IEEE80211_HT_PARAM_CHA_SEC_NONE;
3320
					ctx->ht.is_40mhz = false;
3321 3322
				}
			} else
3323
				ctx->ht.is_40mhz = false;
3324

3325 3326
			if ((le16_to_cpu(ctx->staging.channel) != ch))
				ctx->staging.flags = 0;
3327

3328
			iwl_set_rxon_channel(priv, channel, ctx);
3329
			iwl_set_rxon_ht(priv, ht_conf);
3330
			iwl_set_flags_for_band(priv, ctx, channel->band,
3331
					       ctx->vif);
3332 3333 3334 3335 3336 3337 3338 3339 3340 3341 3342 3343 3344 3345 3346 3347
			spin_unlock_irqrestore(&priv->lock, flags);

			iwl_set_rate(priv);
			/*
			 * at this point, staging_rxon has the
			 * configuration for channel switch
			 */
			if (priv->cfg->ops->lib->set_channel_switch(priv,
								    ch_switch))
				priv->switch_rxon.switch_in_progress = false;
		}
	}
out:
	mutex_unlock(&priv->mutex);
out_exit:
	if (!priv->switch_rxon.switch_in_progress)
3348
		ieee80211_chswitch_done(ctx->vif, false);
3349 3350 3351
	IWL_DEBUG_MAC80211(priv, "leave\n");
}

3352 3353 3354 3355
void iwlagn_configure_filter(struct ieee80211_hw *hw,
			     unsigned int changed_flags,
			     unsigned int *total_flags,
			     u64 multicast)
J
Johannes Berg 已提交
3356 3357 3358
{
	struct iwl_priv *priv = hw->priv;
	__le32 filter_or = 0, filter_nand = 0;
3359
	struct iwl_rxon_context *ctx;
J
Johannes Berg 已提交
3360 3361 3362 3363 3364 3365 3366 3367 3368 3369 3370 3371

#define CHK(test, flag)	do { \
	if (*total_flags & (test))		\
		filter_or |= (flag);		\
	else					\
		filter_nand |= (flag);		\
	} while (0)

	IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n",
			changed_flags, *total_flags);

	CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK);
J
Johannes Berg 已提交
3372 3373
	/* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
	CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK);
J
Johannes Berg 已提交
3374 3375 3376 3377 3378 3379
	CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK);

#undef CHK

	mutex_lock(&priv->mutex);

3380 3381 3382
	for_each_context(priv, ctx) {
		ctx->staging.filter_flags &= ~filter_nand;
		ctx->staging.filter_flags |= filter_or;
3383 3384 3385 3386 3387

		/*
		 * Not committing directly because hardware can perform a scan,
		 * but we'll eventually commit the filter flags change anyway.
		 */
3388
	}
J
Johannes Berg 已提交
3389 3390 3391 3392 3393 3394 3395 3396 3397 3398 3399 3400 3401

	mutex_unlock(&priv->mutex);

	/*
	 * Receiving all multicast frames is always enabled by the
	 * default flags setup in iwl_connection_init_rx_config()
	 * since we currently do not support programming multicast
	 * filters into the device.
	 */
	*total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
			FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
}

3402
void iwlagn_mac_flush(struct ieee80211_hw *hw, bool drop)
3403 3404 3405 3406 3407 3408 3409 3410 3411 3412 3413 3414 3415 3416 3417 3418 3419 3420 3421 3422 3423 3424 3425 3426 3427 3428 3429 3430 3431 3432 3433 3434 3435 3436 3437 3438 3439
{
	struct iwl_priv *priv = hw->priv;

	mutex_lock(&priv->mutex);
	IWL_DEBUG_MAC80211(priv, "enter\n");

	/* do not support "flush" */
	if (!priv->cfg->ops->lib->txfifo_flush)
		goto done;

	if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
		IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n");
		goto done;
	}
	if (iwl_is_rfkill(priv)) {
		IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n");
		goto done;
	}

	/*
	 * mac80211 will not push any more frames for transmit
	 * until the flush is completed
	 */
	if (drop) {
		IWL_DEBUG_MAC80211(priv, "send flush command\n");
		if (priv->cfg->ops->lib->txfifo_flush(priv, IWL_DROP_ALL)) {
			IWL_ERR(priv, "flush request fail\n");
			goto done;
		}
	}
	IWL_DEBUG_MAC80211(priv, "wait transmit/flush all frames\n");
	iwlagn_wait_tx_queue_empty(priv);
done:
	mutex_unlock(&priv->mutex);
	IWL_DEBUG_MAC80211(priv, "leave\n");
}

3440 3441 3442 3443 3444 3445 3446 3447 3448 3449 3450 3451 3452 3453 3454 3455 3456
static void iwlagn_disable_roc(struct iwl_priv *priv)
{
	struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN];
	struct ieee80211_channel *chan = ACCESS_ONCE(priv->hw->conf.channel);

	lockdep_assert_held(&priv->mutex);

	if (!ctx->is_active)
		return;

	ctx->staging.dev_type = RXON_DEV_TYPE_2STA;
	ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
	iwl_set_rxon_channel(priv, chan, ctx);
	iwl_set_flags_for_band(priv, ctx, chan->band, NULL);

	priv->_agn.hw_roc_channel = NULL;

3457
	iwlcore_commit_rxon(priv, ctx);
3458 3459 3460 3461 3462 3463 3464 3465 3466 3467 3468 3469 3470 3471 3472 3473 3474 3475 3476 3477 3478 3479 3480 3481 3482 3483 3484 3485 3486 3487 3488 3489 3490 3491 3492 3493 3494 3495 3496 3497 3498 3499

	ctx->is_active = false;
}

static void iwlagn_bg_roc_done(struct work_struct *work)
{
	struct iwl_priv *priv = container_of(work, struct iwl_priv,
					     _agn.hw_roc_work.work);

	mutex_lock(&priv->mutex);
	ieee80211_remain_on_channel_expired(priv->hw);
	iwlagn_disable_roc(priv);
	mutex_unlock(&priv->mutex);
}

static int iwl_mac_remain_on_channel(struct ieee80211_hw *hw,
				     struct ieee80211_channel *channel,
				     enum nl80211_channel_type channel_type,
				     int duration)
{
	struct iwl_priv *priv = hw->priv;
	int err = 0;

	if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN)))
		return -EOPNOTSUPP;

	if (!(priv->contexts[IWL_RXON_CTX_PAN].interface_modes &
					BIT(NL80211_IFTYPE_P2P_CLIENT)))
		return -EOPNOTSUPP;

	mutex_lock(&priv->mutex);

	if (priv->contexts[IWL_RXON_CTX_PAN].is_active ||
	    test_bit(STATUS_SCAN_HW, &priv->status)) {
		err = -EBUSY;
		goto out;
	}

	priv->contexts[IWL_RXON_CTX_PAN].is_active = true;
	priv->_agn.hw_roc_channel = channel;
	priv->_agn.hw_roc_chantype = channel_type;
	priv->_agn.hw_roc_duration = DIV_ROUND_UP(duration * 1000, 1024);
3500
	iwlcore_commit_rxon(priv, &priv->contexts[IWL_RXON_CTX_PAN]);
3501 3502 3503
	queue_delayed_work(priv->workqueue, &priv->_agn.hw_roc_work,
			   msecs_to_jiffies(duration + 20));

3504
	msleep(IWL_MIN_SLOT_TIME); /* TU is almost ms */
3505 3506 3507 3508 3509 3510 3511 3512 3513 3514 3515 3516 3517 3518 3519 3520 3521 3522 3523 3524 3525 3526 3527 3528
	ieee80211_ready_on_channel(priv->hw);

 out:
	mutex_unlock(&priv->mutex);

	return err;
}

static int iwl_mac_cancel_remain_on_channel(struct ieee80211_hw *hw)
{
	struct iwl_priv *priv = hw->priv;

	if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN)))
		return -EOPNOTSUPP;

	cancel_delayed_work_sync(&priv->_agn.hw_roc_work);

	mutex_lock(&priv->mutex);
	iwlagn_disable_roc(priv);
	mutex_unlock(&priv->mutex);

	return 0;
}

Z
Zhu Yi 已提交
3529 3530 3531 3532 3533 3534
/*****************************************************************************
 *
 * driver setup and teardown
 *
 *****************************************************************************/

3535
static void iwl_setup_deferred_work(struct iwl_priv *priv)
Z
Zhu Yi 已提交
3536
{
3537
	priv->workqueue = create_singlethread_workqueue(DRV_NAME);
Z
Zhu Yi 已提交
3538 3539 3540

	init_waitqueue_head(&priv->wait_command_queue);

3541 3542 3543
	INIT_WORK(&priv->restart, iwl_bg_restart);
	INIT_WORK(&priv->rx_replenish, iwl_bg_rx_replenish);
	INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update);
3544
	INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work);
3545
	INIT_WORK(&priv->tx_flush, iwl_bg_tx_flush);
3546
	INIT_WORK(&priv->bt_full_concurrency, iwl_bg_bt_full_concurrency);
3547
	INIT_WORK(&priv->bt_runtime_config, iwl_bg_bt_runtime_config);
3548 3549
	INIT_DELAYED_WORK(&priv->init_alive_start, iwl_bg_init_alive_start);
	INIT_DELAYED_WORK(&priv->alive_start, iwl_bg_alive_start);
3550
	INIT_DELAYED_WORK(&priv->_agn.hw_roc_work, iwlagn_bg_roc_done);
3551 3552

	iwl_setup_scan_deferred_work(priv);
C
Christoph Hellwig 已提交
3553

3554 3555 3556 3557 3558
	if (priv->cfg->ops->lib->setup_deferred_work)
		priv->cfg->ops->lib->setup_deferred_work(priv);

	init_timer(&priv->statistics_periodic);
	priv->statistics_periodic.data = (unsigned long)priv;
3559
	priv->statistics_periodic.function = iwl_bg_statistics_periodic;
Z
Zhu Yi 已提交
3560

3561 3562 3563 3564
	init_timer(&priv->ucode_trace);
	priv->ucode_trace.data = (unsigned long)priv;
	priv->ucode_trace.function = iwl_bg_ucode_trace;

3565 3566 3567
	init_timer(&priv->watchdog);
	priv->watchdog.data = (unsigned long)priv;
	priv->watchdog.function = iwl_bg_watchdog;
3568

W
Wey-Yi Guy 已提交
3569 3570
	tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
		iwl_irq_tasklet, (unsigned long)priv);
Z
Zhu Yi 已提交
3571 3572
}

3573
static void iwl_cancel_deferred_work(struct iwl_priv *priv)
Z
Zhu Yi 已提交
3574
{
3575 3576
	if (priv->cfg->ops->lib->cancel_deferred_work)
		priv->cfg->ops->lib->cancel_deferred_work(priv);
Z
Zhu Yi 已提交
3577

3578
	cancel_delayed_work_sync(&priv->init_alive_start);
Z
Zhu Yi 已提交
3579
	cancel_delayed_work(&priv->alive_start);
3580
	cancel_work_sync(&priv->run_time_calib_work);
Z
Zhu Yi 已提交
3581
	cancel_work_sync(&priv->beacon_update);
3582 3583 3584

	iwl_cancel_scan_deferred_work(priv);

3585
	cancel_work_sync(&priv->bt_full_concurrency);
3586
	cancel_work_sync(&priv->bt_runtime_config);
3587

3588
	del_timer_sync(&priv->statistics_periodic);
3589
	del_timer_sync(&priv->ucode_trace);
Z
Zhu Yi 已提交
3590 3591
}

3592 3593 3594 3595 3596 3597 3598 3599 3600 3601 3602 3603 3604 3605 3606 3607 3608 3609 3610 3611 3612 3613 3614 3615 3616 3617 3618 3619 3620 3621 3622
static void iwl_init_hw_rates(struct iwl_priv *priv,
			      struct ieee80211_rate *rates)
{
	int i;

	for (i = 0; i < IWL_RATE_COUNT_LEGACY; 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_FIRST_CCK_RATE) && (i <= IWL_LAST_CCK_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;
		}
	}
}

static int iwl_init_drv(struct iwl_priv *priv)
{
	int ret;

	spin_lock_init(&priv->sta_lock);
	spin_lock_init(&priv->hcmd_lock);

	INIT_LIST_HEAD(&priv->free_frames);

	mutex_init(&priv->mutex);
3623
	mutex_init(&priv->sync_cmd_mutex);
3624 3625 3626 3627 3628 3629

	priv->ieee_channels = NULL;
	priv->ieee_rates = NULL;
	priv->band = IEEE80211_BAND_2GHZ;

	priv->iw_mode = NL80211_IFTYPE_STATION;
J
Johannes Berg 已提交
3630
	priv->current_ht_config.smps = IEEE80211_SMPS_STATIC;
3631
	priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF;
W
Wey-Yi Guy 已提交
3632
	priv->_agn.agg_tids_count = 0;
3633

3634 3635 3636 3637 3638
	/* initialize force reset */
	priv->force_reset[IWL_RF_RESET].reset_duration =
		IWL_DELAY_NEXT_FORCE_RF_RESET;
	priv->force_reset[IWL_FW_RESET].reset_duration =
		IWL_DELAY_NEXT_FORCE_FW_RELOAD;
3639

3640 3641
	priv->rx_statistics_jiffies = jiffies;

3642 3643
	/* Choose which receivers/antennas to use */
	if (priv->cfg->ops->hcmd->set_rxon_chain)
3644 3645
		priv->cfg->ops->hcmd->set_rxon_chain(priv,
					&priv->contexts[IWL_RXON_CTX_BSS]);
3646 3647 3648

	iwl_init_scan_params(priv);

3649
	/* init bt coex */
3650 3651
	if (priv->cfg->bt_params &&
	    priv->cfg->bt_params->advanced_bt_coexist) {
W
Wey-Yi Guy 已提交
3652 3653 3654
		priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
		priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
		priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
3655 3656 3657 3658 3659
		priv->bt_on_thresh = BT_ON_THRESHOLD_DEF;
		priv->bt_duration = BT_DURATION_LIMIT_DEF;
		priv->dynamic_frag_thresh = BT_FRAG_THRESHOLD_DEF;
	}

3660 3661 3662
	/* Set the tx_power_user_lmt to the lowest power level
	 * this value will get overwritten by channel max power avg
	 * from eeprom */
3663
	priv->tx_power_user_lmt = IWLAGN_TX_POWER_TARGET_POWER_MIN;
3664
	priv->tx_power_next = IWLAGN_TX_POWER_TARGET_POWER_MIN;
3665 3666 3667 3668 3669 3670 3671 3672 3673 3674 3675 3676 3677 3678 3679 3680 3681 3682 3683 3684 3685 3686 3687 3688 3689 3690 3691

	ret = iwl_init_channel_map(priv);
	if (ret) {
		IWL_ERR(priv, "initializing regulatory failed: %d\n", ret);
		goto err;
	}

	ret = iwlcore_init_geos(priv);
	if (ret) {
		IWL_ERR(priv, "initializing geos failed: %d\n", ret);
		goto err_free_channel_map;
	}
	iwl_init_hw_rates(priv, priv->ieee_rates);

	return 0;

err_free_channel_map:
	iwl_free_channel_map(priv);
err:
	return ret;
}

static void iwl_uninit_drv(struct iwl_priv *priv)
{
	iwl_calib_free_results(priv);
	iwlcore_free_geos(priv);
	iwl_free_channel_map(priv);
3692
	kfree(priv->scan_cmd);
3693 3694
}

3695
struct ieee80211_ops iwlagn_hw_ops = {
3696 3697 3698
	.tx = iwlagn_mac_tx,
	.start = iwlagn_mac_start,
	.stop = iwlagn_mac_stop,
3699 3700
	.add_interface = iwl_mac_add_interface,
	.remove_interface = iwl_mac_remove_interface,
3701
	.change_interface = iwl_mac_change_interface,
3702
	.config = iwlagn_mac_config,
J
Johannes Berg 已提交
3703
	.configure_filter = iwlagn_configure_filter,
3704 3705
	.set_key = iwlagn_mac_set_key,
	.update_tkip_key = iwlagn_mac_update_tkip_key,
3706
	.conf_tx = iwl_mac_conf_tx,
3707 3708
	.bss_info_changed = iwlagn_bss_info_changed,
	.ampdu_action = iwlagn_mac_ampdu_action,
3709
	.hw_scan = iwl_mac_hw_scan,
3710
	.sta_notify = iwlagn_mac_sta_notify,
3711 3712
	.sta_add = iwlagn_mac_sta_add,
	.sta_remove = iwl_mac_sta_remove,
3713 3714
	.channel_switch = iwlagn_mac_channel_switch,
	.flush = iwlagn_mac_flush,
3715
	.tx_last_beacon = iwl_mac_tx_last_beacon,
3716 3717
	.remain_on_channel = iwl_mac_remain_on_channel,
	.cancel_remain_on_channel = iwl_mac_cancel_remain_on_channel,
J
Johannes Berg 已提交
3718 3719
	.offchannel_tx = iwl_mac_offchannel_tx,
	.offchannel_tx_cancel_wait = iwl_mac_offchannel_tx_cancel_wait,
Z
Zhu Yi 已提交
3720 3721
};

3722 3723 3724 3725 3726
static void iwl_hw_detect(struct iwl_priv *priv)
{
	priv->hw_rev = _iwl_read32(priv, CSR_HW_REV);
	priv->hw_wa_rev = _iwl_read32(priv, CSR_HW_REV_WA_REG);
	pci_read_config_byte(priv->pci_dev, PCI_REVISION_ID, &priv->rev_id);
W
Wey-Yi Guy 已提交
3727
	IWL_DEBUG_INFO(priv, "HW Revision ID = 0x%X\n", priv->rev_id);
3728 3729
}

3730 3731 3732 3733 3734 3735 3736 3737 3738 3739 3740 3741 3742 3743 3744 3745 3746 3747
static int iwl_set_hw_params(struct iwl_priv *priv)
{
	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_page_order = get_order(IWL_RX_BUF_SIZE_8K);
	else
		priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_4K);

	priv->hw_params.max_beacon_itrvl = IWL_MAX_UCODE_BEACON_INTERVAL;

	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);
}

3748 3749 3750 3751 3752 3753 3754 3755 3756 3757 3758 3759 3760 3761 3762 3763 3764 3765 3766 3767 3768 3769
static const u8 iwlagn_bss_ac_to_fifo[] = {
	IWL_TX_FIFO_VO,
	IWL_TX_FIFO_VI,
	IWL_TX_FIFO_BE,
	IWL_TX_FIFO_BK,
};

static const u8 iwlagn_bss_ac_to_queue[] = {
	0, 1, 2, 3,
};

static const u8 iwlagn_pan_ac_to_fifo[] = {
	IWL_TX_FIFO_VO_IPAN,
	IWL_TX_FIFO_VI_IPAN,
	IWL_TX_FIFO_BE_IPAN,
	IWL_TX_FIFO_BK_IPAN,
};

static const u8 iwlagn_pan_ac_to_queue[] = {
	7, 6, 5, 4,
};

3770
static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
Z
Zhu Yi 已提交
3771
{
3772
	int err = 0, i;
3773
	struct iwl_priv *priv;
Z
Zhu Yi 已提交
3774
	struct ieee80211_hw *hw;
T
Tomas Winkler 已提交
3775
	struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data);
3776
	unsigned long flags;
3777
	u16 pci_cmd, num_mac;
Z
Zhu Yi 已提交
3778

3779 3780 3781 3782
	/************************
	 * 1. Allocating HW data
	 ************************/

3783 3784
	/* Disabling hardware scan means that mac80211 will perform scans
	 * "the hard way", rather than using device's scan. */
3785
	if (cfg->mod_params->disable_hw_scan) {
3786 3787
		dev_printk(KERN_DEBUG, &(pdev->dev),
			"sw scan support is deprecated\n");
3788
		iwlagn_hw_ops.hw_scan = NULL;
Z
Zhu Yi 已提交
3789 3790
	}

3791
	hw = iwl_alloc_all(cfg);
3792
	if (!hw) {
Z
Zhu Yi 已提交
3793 3794 3795
		err = -ENOMEM;
		goto out;
	}
3796 3797 3798
	priv = hw->priv;
	/* At this point both hw and priv are allocated. */

3799 3800 3801 3802 3803 3804 3805 3806 3807 3808
	/*
	 * The default context is always valid,
	 * more may be discovered when firmware
	 * is loaded.
	 */
	priv->valid_contexts = BIT(IWL_RXON_CTX_BSS);

	for (i = 0; i < NUM_IWL_RXON_CTX; i++)
		priv->contexts[i].ctxid = i;

3809 3810
	priv->contexts[IWL_RXON_CTX_BSS].always_active = true;
	priv->contexts[IWL_RXON_CTX_BSS].is_active = true;
3811 3812 3813
	priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON;
	priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING;
	priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC;
J
Johannes Berg 已提交
3814
	priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM;
3815
	priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID;
3816
	priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY;
3817 3818
	priv->contexts[IWL_RXON_CTX_BSS].ac_to_fifo = iwlagn_bss_ac_to_fifo;
	priv->contexts[IWL_RXON_CTX_BSS].ac_to_queue = iwlagn_bss_ac_to_queue;
3819 3820 3821 3822
	priv->contexts[IWL_RXON_CTX_BSS].exclusive_interface_modes =
		BIT(NL80211_IFTYPE_ADHOC);
	priv->contexts[IWL_RXON_CTX_BSS].interface_modes =
		BIT(NL80211_IFTYPE_STATION);
3823
	priv->contexts[IWL_RXON_CTX_BSS].ap_devtype = RXON_DEV_TYPE_AP;
3824 3825 3826
	priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS;
	priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS;
	priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS;
J
Johannes Berg 已提交
3827 3828 3829 3830 3831 3832 3833 3834 3835

	priv->contexts[IWL_RXON_CTX_PAN].rxon_cmd = REPLY_WIPAN_RXON;
	priv->contexts[IWL_RXON_CTX_PAN].rxon_timing_cmd = REPLY_WIPAN_RXON_TIMING;
	priv->contexts[IWL_RXON_CTX_PAN].rxon_assoc_cmd = REPLY_WIPAN_RXON_ASSOC;
	priv->contexts[IWL_RXON_CTX_PAN].qos_cmd = REPLY_WIPAN_QOS_PARAM;
	priv->contexts[IWL_RXON_CTX_PAN].ap_sta_id = IWL_AP_ID_PAN;
	priv->contexts[IWL_RXON_CTX_PAN].wep_key_cmd = REPLY_WIPAN_WEPKEY;
	priv->contexts[IWL_RXON_CTX_PAN].bcast_sta_id = IWLAGN_PAN_BCAST_ID;
	priv->contexts[IWL_RXON_CTX_PAN].station_flags = STA_FLG_PAN_STATION;
3836 3837 3838
	priv->contexts[IWL_RXON_CTX_PAN].ac_to_fifo = iwlagn_pan_ac_to_fifo;
	priv->contexts[IWL_RXON_CTX_PAN].ac_to_queue = iwlagn_pan_ac_to_queue;
	priv->contexts[IWL_RXON_CTX_PAN].mcast_queue = IWL_IPAN_MCAST_QUEUE;
3839 3840
	priv->contexts[IWL_RXON_CTX_PAN].interface_modes =
		BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP);
W
Wey-Yi Guy 已提交
3841 3842 3843 3844
#ifdef CONFIG_IWL_P2P
	priv->contexts[IWL_RXON_CTX_PAN].interface_modes |=
		BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_P2P_GO);
#endif
3845 3846 3847
	priv->contexts[IWL_RXON_CTX_PAN].ap_devtype = RXON_DEV_TYPE_CP;
	priv->contexts[IWL_RXON_CTX_PAN].station_devtype = RXON_DEV_TYPE_2STA;
	priv->contexts[IWL_RXON_CTX_PAN].unused_devtype = RXON_DEV_TYPE_P2P;
J
Johannes Berg 已提交
3848 3849

	BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
3850

Z
Zhu Yi 已提交
3851 3852
	SET_IEEE80211_DEV(hw, &pdev->dev);

3853
	IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
T
Tomas Winkler 已提交
3854
	priv->cfg = cfg;
Z
Zhu Yi 已提交
3855
	priv->pci_dev = pdev;
3856
	priv->inta_mask = CSR_INI_SET_MASK;
3857

3858 3859 3860 3861 3862
	/* is antenna coupling more than 35dB ? */
	priv->bt_ant_couple_ok =
		(iwlagn_ant_coupling > IWL_BT_ANTENNA_COUPLING_THRESHOLD) ?
		true : false;

3863
	/* enable/disable bt channel inhibition */
3864
	priv->bt_ch_announce = iwlagn_bt_ch_announce;
3865 3866
	IWL_DEBUG_INFO(priv, "BT channel inhibition is %s\n",
		       (priv->bt_ch_announce) ? "On" : "Off");
3867

3868 3869
	if (iwl_alloc_traffic_mem(priv))
		IWL_ERR(priv, "Not enough memory to generate traffic log\n");
Z
Zhu Yi 已提交
3870

3871 3872 3873
	/**************************
	 * 2. Initializing PCI bus
	 **************************/
3874 3875 3876
	pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
				PCIE_LINK_STATE_CLKPM);

3877 3878 3879 3880 3881 3882 3883
	if (pci_enable_device(pdev)) {
		err = -ENODEV;
		goto out_ieee80211_free_hw;
	}

	pci_set_master(pdev);

W
Winkler, Tomas 已提交
3884
	err = pci_set_dma_mask(pdev, DMA_BIT_MASK(36));
3885
	if (!err)
W
Winkler, Tomas 已提交
3886
		err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(36));
3887
	if (err) {
W
Winkler, Tomas 已提交
3888
		err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
3889
		if (!err)
W
Winkler, Tomas 已提交
3890
			err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
3891
		/* both attempts failed: */
3892
		if (err) {
T
Tomas Winkler 已提交
3893
			IWL_WARN(priv, "No suitable DMA available.\n");
3894
			goto out_pci_disable_device;
3895
		}
3896 3897 3898 3899 3900 3901 3902 3903 3904 3905 3906 3907 3908 3909 3910 3911 3912 3913
	}

	err = pci_request_regions(pdev, DRV_NAME);
	if (err)
		goto out_pci_disable_device;

	pci_set_drvdata(pdev, priv);


	/***********************
	 * 3. Read REV register
	 ***********************/
	priv->hw_base = pci_iomap(pdev, 0, 0);
	if (!priv->hw_base) {
		err = -ENODEV;
		goto out_pci_release_regions;
	}

3914
	IWL_DEBUG_INFO(priv, "pci_resource_len = 0x%08llx\n",
3915
		(unsigned long long) pci_resource_len(pdev, 0));
3916
	IWL_DEBUG_INFO(priv, "pci_resource_base = %p\n", priv->hw_base);
3917

3918
	/* these spin locks will be used in apm_ops.init and EEPROM access
M
Mohamed Abbas 已提交
3919 3920 3921
	 * we should init now
	 */
	spin_lock_init(&priv->reg_lock);
3922
	spin_lock_init(&priv->lock);
3923 3924 3925 3926 3927 3928 3929 3930

	/*
	 * stop and reset the on-board processor just in case it is in a
	 * strange state ... like being left stranded by a primary kernel
	 * and this is now the kdump kernel trying to start up
	 */
	iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);

3931
	iwl_hw_detect(priv);
3932
	IWL_INFO(priv, "Detected %s, REV=0x%X\n",
3933
		priv->cfg->name, priv->hw_rev);
3934

3935 3936 3937 3938
	/* We disable the RETRY_TIMEOUT register (0x41) to keep
	 * PCI Tx retries from interfering with C3 CPU state */
	pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00);

M
Mohamed Abbas 已提交
3939 3940 3941 3942 3943 3944
	iwl_prepare_card_hw(priv);
	if (!priv->hw_ready) {
		IWL_WARN(priv, "Failed, HW not ready\n");
		goto out_iounmap;
	}

T
Tomas Winkler 已提交
3945 3946 3947
	/*****************
	 * 4. Read EEPROM
	 *****************/
3948 3949 3950
	/* Read the EEPROM */
	err = iwl_eeprom_init(priv);
	if (err) {
3951
		IWL_ERR(priv, "Unable to init EEPROM\n");
3952 3953
		goto out_iounmap;
	}
3954 3955
	err = iwl_eeprom_check_version(priv);
	if (err)
3956
		goto out_free_eeprom;
3957

3958 3959 3960 3961
	err = iwl_eeprom_check_sku(priv);
	if (err)
		goto out_free_eeprom;

3962
	/* extract MAC Address */
3963 3964 3965 3966 3967 3968 3969 3970 3971 3972 3973
	iwl_eeprom_get_mac(priv, priv->addresses[0].addr);
	IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->addresses[0].addr);
	priv->hw->wiphy->addresses = priv->addresses;
	priv->hw->wiphy->n_addresses = 1;
	num_mac = iwl_eeprom_query16(priv, EEPROM_NUM_MAC_ADDRESS);
	if (num_mac > 1) {
		memcpy(priv->addresses[1].addr, priv->addresses[0].addr,
		       ETH_ALEN);
		priv->addresses[1].addr[5]++;
		priv->hw->wiphy->n_addresses++;
	}
3974 3975 3976 3977

	/************************
	 * 5. Setup HW constants
	 ************************/
3978
	if (iwl_set_hw_params(priv)) {
3979
		IWL_ERR(priv, "failed to set hw parameters\n");
3980
		goto out_free_eeprom;
3981 3982 3983
	}

	/*******************
T
Tomas Winkler 已提交
3984
	 * 6. Setup priv
3985
	 *******************/
Z
Zhu Yi 已提交
3986

T
Tomas Winkler 已提交
3987
	err = iwl_init_drv(priv);
3988
	if (err)
R
Ron Rindjunsky 已提交
3989
		goto out_free_eeprom;
3990
	/* At this point both hw and priv are initialized. */
3991 3992

	/********************
3993
	 * 7. Setup services
3994
	 ********************/
3995
	spin_lock_irqsave(&priv->lock, flags);
3996
	iwl_disable_interrupts(priv);
3997
	spin_unlock_irqrestore(&priv->lock, flags);
3998

3999 4000
	pci_enable_msi(priv->pci_dev);

4001 4002 4003 4004
	if (priv->cfg->ops->lib->isr_ops.alloc)
		priv->cfg->ops->lib->isr_ops.alloc(priv);

	err = request_irq(priv->pci_dev->irq, priv->cfg->ops->lib->isr_ops.isr,
M
Mohamed Abbas 已提交
4005
			  IRQF_SHARED, DRV_NAME, priv);
4006 4007 4008 4009
	if (err) {
		IWL_ERR(priv, "Error allocating IRQ %d\n", priv->pci_dev->irq);
		goto out_disable_msi;
	}
4010

4011
	iwl_setup_deferred_work(priv);
4012
	iwl_setup_rx_handlers(priv);
4013

J
Johannes Berg 已提交
4014 4015 4016
	/*********************************************
	 * 8. Enable interrupts and read RFKILL state
	 *********************************************/
T
Tomas Winkler 已提交
4017

4018
	/* enable rfkill interrupt: hw bug w/a */
4019 4020 4021 4022 4023 4024
	pci_read_config_word(priv->pci_dev, PCI_COMMAND, &pci_cmd);
	if (pci_cmd & PCI_COMMAND_INTX_DISABLE) {
		pci_cmd &= ~PCI_COMMAND_INTX_DISABLE;
		pci_write_config_word(priv->pci_dev, PCI_COMMAND, pci_cmd);
	}

4025
	iwl_enable_rfkill_int(priv);
4026 4027 4028 4029 4030 4031

	/* If platform's RF_KILL switch is NOT set to KILL */
	if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
		clear_bit(STATUS_RF_KILL_HW, &priv->status);
	else
		set_bit(STATUS_RF_KILL_HW, &priv->status);
T
Tomas Winkler 已提交
4032

J
Johannes Berg 已提交
4033 4034
	wiphy_rfkill_set_hw_state(priv->hw->wiphy,
		test_bit(STATUS_RF_KILL_HW, &priv->status));
4035

4036
	iwl_power_initialize(priv);
4037
	iwl_tt_initialize(priv);
J
Johannes Berg 已提交
4038

4039
	init_completion(&priv->_agn.firmware_loading_complete);
4040

4041
	err = iwl_request_firmware(priv, true);
J
Johannes Berg 已提交
4042
	if (err)
4043
		goto out_destroy_workqueue;
J
Johannes Berg 已提交
4044

Z
Zhu Yi 已提交
4045 4046
	return 0;

4047
 out_destroy_workqueue:
4048 4049
	destroy_workqueue(priv->workqueue);
	priv->workqueue = NULL;
4050
	free_irq(priv->pci_dev->irq, priv);
4051 4052
	if (priv->cfg->ops->lib->isr_ops.free)
		priv->cfg->ops->lib->isr_ops.free(priv);
4053 4054
 out_disable_msi:
	pci_disable_msi(priv->pci_dev);
T
Tomas Winkler 已提交
4055
	iwl_uninit_drv(priv);
4056 4057
 out_free_eeprom:
	iwl_eeprom_free(priv);
Z
Zhu Yi 已提交
4058 4059 4060
 out_iounmap:
	pci_iounmap(pdev, priv->hw_base);
 out_pci_release_regions:
4061
	pci_set_drvdata(pdev, NULL);
4062
	pci_release_regions(pdev);
Z
Zhu Yi 已提交
4063 4064 4065
 out_pci_disable_device:
	pci_disable_device(pdev);
 out_ieee80211_free_hw:
4066
	iwl_free_traffic_mem(priv);
4067
	ieee80211_free_hw(priv->hw);
Z
Zhu Yi 已提交
4068 4069 4070 4071
 out:
	return err;
}

4072
static void __devexit iwl_pci_remove(struct pci_dev *pdev)
Z
Zhu Yi 已提交
4073
{
4074
	struct iwl_priv *priv = pci_get_drvdata(pdev);
4075
	unsigned long flags;
Z
Zhu Yi 已提交
4076 4077 4078 4079

	if (!priv)
		return;

4080
	wait_for_completion(&priv->_agn.firmware_loading_complete);
4081

4082
	IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n");
Z
Zhu Yi 已提交
4083

4084
	iwl_dbgfs_unregister(priv);
4085
	sysfs_remove_group(&pdev->dev.kobj, &iwl_attribute_group);
4086

4087 4088
	/* ieee80211_unregister_hw call wil cause iwl_mac_stop to
	 * to be called and iwl_down since we are removing the device
4089 4090 4091
	 * we need to set STATUS_EXIT_PENDING bit.
	 */
	set_bit(STATUS_EXIT_PENDING, &priv->status);
4092 4093 4094

	iwl_leds_exit(priv);

4095 4096 4097
	if (priv->mac80211_registered) {
		ieee80211_unregister_hw(priv->hw);
		priv->mac80211_registered = 0;
4098
	} else {
4099
		iwl_down(priv);
4100 4101
	}

4102 4103 4104 4105 4106 4107 4108
	/*
	 * Make sure device is reset to low power before unloading driver.
	 * This may be redundant with iwl_down(), but there are paths to
	 * run iwl_down() without calling apm_ops.stop(), and there are
	 * paths to avoid running iwl_down() at all before leaving driver.
	 * This (inexpensive) call *makes sure* device is reset.
	 */
J
Johannes Berg 已提交
4109
	iwl_apm_stop(priv);
4110

4111 4112
	iwl_tt_exit(priv);

4113 4114 4115 4116
	/* make sure we flush any pending irq or
	 * tasklet for the driver
	 */
	spin_lock_irqsave(&priv->lock, flags);
4117
	iwl_disable_interrupts(priv);
4118 4119 4120 4121
	spin_unlock_irqrestore(&priv->lock, flags);

	iwl_synchronize_irq(priv);

4122
	iwl_dealloc_ucode_pci(priv);
Z
Zhu Yi 已提交
4123 4124

	if (priv->rxq.bd)
4125
		iwlagn_rx_queue_free(priv, &priv->rxq);
4126
	iwlagn_hw_txq_ctx_free(priv);
Z
Zhu Yi 已提交
4127

4128
	iwl_eeprom_free(priv);
Z
Zhu Yi 已提交
4129 4130


M
Mohamed Abbas 已提交
4131 4132 4133
	/*netif_stop_queue(dev); */
	flush_workqueue(priv->workqueue);

4134
	/* ieee80211_unregister_hw calls iwl_mac_stop, which flushes
Z
Zhu Yi 已提交
4135 4136 4137 4138
	 * priv->workqueue... so we can't take down the workqueue
	 * until now... */
	destroy_workqueue(priv->workqueue);
	priv->workqueue = NULL;
4139
	iwl_free_traffic_mem(priv);
Z
Zhu Yi 已提交
4140

4141 4142
	free_irq(priv->pci_dev->irq, priv);
	pci_disable_msi(priv->pci_dev);
Z
Zhu Yi 已提交
4143 4144 4145 4146 4147
	pci_iounmap(pdev, priv->hw_base);
	pci_release_regions(pdev);
	pci_disable_device(pdev);
	pci_set_drvdata(pdev, NULL);

T
Tomas Winkler 已提交
4148
	iwl_uninit_drv(priv);
Z
Zhu Yi 已提交
4149

4150 4151
	if (priv->cfg->ops->lib->isr_ops.free)
		priv->cfg->ops->lib->isr_ops.free(priv);
M
Mohamed Abbas 已提交
4152

4153
	dev_kfree_skb(priv->beacon_skb);
Z
Zhu Yi 已提交
4154 4155 4156 4157 4158 4159 4160 4161 4162 4163 4164

	ieee80211_free_hw(priv->hw);
}


/*****************************************************************************
 *
 * driver and module entry point
 *
 *****************************************************************************/

4165
/* Hardware specific file defines the PCI IDs table for that hardware module */
4166
static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = {
4167 4168 4169 4170 4171 4172 4173 4174 4175 4176 4177 4178 4179 4180 4181 4182 4183 4184 4185 4186 4187 4188 4189 4190 4191 4192 4193 4194 4195 4196 4197 4198 4199 4200 4201 4202 4203 4204 4205 4206 4207 4208 4209 4210 4211 4212 4213 4214 4215 4216 4217 4218 4219 4220 4221 4222
	{IWL_PCI_DEVICE(0x4232, 0x1201, iwl5100_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1301, iwl5100_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1204, iwl5100_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1304, iwl5100_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1205, iwl5100_bgn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1305, iwl5100_bgn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1206, iwl5100_abg_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1306, iwl5100_abg_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1221, iwl5100_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1321, iwl5100_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1224, iwl5100_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1324, iwl5100_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1225, iwl5100_bgn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1325, iwl5100_bgn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1226, iwl5100_abg_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4232, 0x1326, iwl5100_abg_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4237, 0x1211, iwl5100_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4237, 0x1311, iwl5100_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4237, 0x1214, iwl5100_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4237, 0x1314, iwl5100_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4237, 0x1215, iwl5100_bgn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4237, 0x1315, iwl5100_bgn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4237, 0x1216, iwl5100_abg_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4237, 0x1316, iwl5100_abg_cfg)}, /* Half Mini Card */

/* 5300 Series WiFi */
	{IWL_PCI_DEVICE(0x4235, 0x1021, iwl5300_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4235, 0x1121, iwl5300_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4235, 0x1024, iwl5300_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4235, 0x1124, iwl5300_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4235, 0x1001, iwl5300_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4235, 0x1101, iwl5300_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4235, 0x1004, iwl5300_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4235, 0x1104, iwl5300_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4236, 0x1011, iwl5300_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4236, 0x1111, iwl5300_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x4236, 0x1014, iwl5300_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x4236, 0x1114, iwl5300_agn_cfg)}, /* Half Mini Card */

/* 5350 Series WiFi/WiMax */
	{IWL_PCI_DEVICE(0x423A, 0x1001, iwl5350_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x423A, 0x1021, iwl5350_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x423B, 0x1011, iwl5350_agn_cfg)}, /* Mini Card */

/* 5150 Series Wifi/WiMax */
	{IWL_PCI_DEVICE(0x423C, 0x1201, iwl5150_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x423C, 0x1301, iwl5150_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x423C, 0x1206, iwl5150_abg_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x423C, 0x1306, iwl5150_abg_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x423C, 0x1221, iwl5150_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x423C, 0x1321, iwl5150_agn_cfg)}, /* Half Mini Card */

	{IWL_PCI_DEVICE(0x423D, 0x1211, iwl5150_agn_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x423D, 0x1311, iwl5150_agn_cfg)}, /* Half Mini Card */
	{IWL_PCI_DEVICE(0x423D, 0x1216, iwl5150_abg_cfg)}, /* Mini Card */
	{IWL_PCI_DEVICE(0x423D, 0x1316, iwl5150_abg_cfg)}, /* Half Mini Card */
4223 4224 4225 4226 4227 4228 4229 4230 4231 4232 4233 4234

/* 6x00 Series */
	{IWL_PCI_DEVICE(0x422B, 0x1101, iwl6000_3agn_cfg)},
	{IWL_PCI_DEVICE(0x422B, 0x1121, iwl6000_3agn_cfg)},
	{IWL_PCI_DEVICE(0x422C, 0x1301, iwl6000i_2agn_cfg)},
	{IWL_PCI_DEVICE(0x422C, 0x1306, iwl6000i_2abg_cfg)},
	{IWL_PCI_DEVICE(0x422C, 0x1307, iwl6000i_2bg_cfg)},
	{IWL_PCI_DEVICE(0x422C, 0x1321, iwl6000i_2agn_cfg)},
	{IWL_PCI_DEVICE(0x422C, 0x1326, iwl6000i_2abg_cfg)},
	{IWL_PCI_DEVICE(0x4238, 0x1111, iwl6000_3agn_cfg)},
	{IWL_PCI_DEVICE(0x4239, 0x1311, iwl6000i_2agn_cfg)},
	{IWL_PCI_DEVICE(0x4239, 0x1316, iwl6000i_2abg_cfg)},
4235

W
Wey-Yi Guy 已提交
4236
/* 6x05 Series */
4237 4238 4239 4240 4241 4242 4243
	{IWL_PCI_DEVICE(0x0082, 0x1301, iwl6005_2agn_cfg)},
	{IWL_PCI_DEVICE(0x0082, 0x1306, iwl6005_2abg_cfg)},
	{IWL_PCI_DEVICE(0x0082, 0x1307, iwl6005_2bg_cfg)},
	{IWL_PCI_DEVICE(0x0082, 0x1321, iwl6005_2agn_cfg)},
	{IWL_PCI_DEVICE(0x0082, 0x1326, iwl6005_2abg_cfg)},
	{IWL_PCI_DEVICE(0x0085, 0x1311, iwl6005_2agn_cfg)},
	{IWL_PCI_DEVICE(0x0085, 0x1316, iwl6005_2abg_cfg)},
4244

W
Wey-Yi Guy 已提交
4245
/* 6x30 Series */
4246 4247 4248 4249 4250 4251 4252 4253 4254 4255 4256 4257 4258 4259 4260 4261
	{IWL_PCI_DEVICE(0x008A, 0x5305, iwl1030_bgn_cfg)},
	{IWL_PCI_DEVICE(0x008A, 0x5307, iwl1030_bg_cfg)},
	{IWL_PCI_DEVICE(0x008A, 0x5325, iwl1030_bgn_cfg)},
	{IWL_PCI_DEVICE(0x008A, 0x5327, iwl1030_bg_cfg)},
	{IWL_PCI_DEVICE(0x008B, 0x5315, iwl1030_bgn_cfg)},
	{IWL_PCI_DEVICE(0x008B, 0x5317, iwl1030_bg_cfg)},
	{IWL_PCI_DEVICE(0x0090, 0x5211, iwl6030_2agn_cfg)},
	{IWL_PCI_DEVICE(0x0090, 0x5215, iwl6030_2bgn_cfg)},
	{IWL_PCI_DEVICE(0x0090, 0x5216, iwl6030_2abg_cfg)},
	{IWL_PCI_DEVICE(0x0091, 0x5201, iwl6030_2agn_cfg)},
	{IWL_PCI_DEVICE(0x0091, 0x5205, iwl6030_2bgn_cfg)},
	{IWL_PCI_DEVICE(0x0091, 0x5206, iwl6030_2abg_cfg)},
	{IWL_PCI_DEVICE(0x0091, 0x5207, iwl6030_2bg_cfg)},
	{IWL_PCI_DEVICE(0x0091, 0x5221, iwl6030_2agn_cfg)},
	{IWL_PCI_DEVICE(0x0091, 0x5225, iwl6030_2bgn_cfg)},
	{IWL_PCI_DEVICE(0x0091, 0x5226, iwl6030_2abg_cfg)},
4262 4263 4264 4265 4266 4267 4268 4269 4270

/* 6x50 WiFi/WiMax Series */
	{IWL_PCI_DEVICE(0x0087, 0x1301, iwl6050_2agn_cfg)},
	{IWL_PCI_DEVICE(0x0087, 0x1306, iwl6050_2abg_cfg)},
	{IWL_PCI_DEVICE(0x0087, 0x1321, iwl6050_2agn_cfg)},
	{IWL_PCI_DEVICE(0x0087, 0x1326, iwl6050_2abg_cfg)},
	{IWL_PCI_DEVICE(0x0089, 0x1311, iwl6050_2agn_cfg)},
	{IWL_PCI_DEVICE(0x0089, 0x1316, iwl6050_2abg_cfg)},

W
Wey-Yi Guy 已提交
4271
/* 6150 WiFi/WiMax Series */
4272 4273 4274 4275 4276 4277
	{IWL_PCI_DEVICE(0x0885, 0x1305, iwl6150_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0885, 0x1306, iwl6150_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0885, 0x1325, iwl6150_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0885, 0x1326, iwl6150_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0886, 0x1315, iwl6150_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0886, 0x1316, iwl6150_bgn_cfg)},
4278

4279
/* 1000 Series WiFi */
4280 4281 4282 4283 4284 4285 4286 4287 4288 4289 4290 4291
	{IWL_PCI_DEVICE(0x0083, 0x1205, iwl1000_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0083, 0x1305, iwl1000_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0083, 0x1225, iwl1000_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0083, 0x1325, iwl1000_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0084, 0x1215, iwl1000_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0084, 0x1315, iwl1000_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0083, 0x1206, iwl1000_bg_cfg)},
	{IWL_PCI_DEVICE(0x0083, 0x1306, iwl1000_bg_cfg)},
	{IWL_PCI_DEVICE(0x0083, 0x1226, iwl1000_bg_cfg)},
	{IWL_PCI_DEVICE(0x0083, 0x1326, iwl1000_bg_cfg)},
	{IWL_PCI_DEVICE(0x0084, 0x1216, iwl1000_bg_cfg)},
	{IWL_PCI_DEVICE(0x0084, 0x1316, iwl1000_bg_cfg)},
J
Jay Sternberg 已提交
4292

4293
/* 100 Series WiFi */
J
Jay Sternberg 已提交
4294
	{IWL_PCI_DEVICE(0x08AE, 0x1005, iwl100_bgn_cfg)},
4295
	{IWL_PCI_DEVICE(0x08AE, 0x1007, iwl100_bg_cfg)},
J
Jay Sternberg 已提交
4296
	{IWL_PCI_DEVICE(0x08AF, 0x1015, iwl100_bgn_cfg)},
4297
	{IWL_PCI_DEVICE(0x08AF, 0x1017, iwl100_bg_cfg)},
J
Jay Sternberg 已提交
4298
	{IWL_PCI_DEVICE(0x08AE, 0x1025, iwl100_bgn_cfg)},
4299
	{IWL_PCI_DEVICE(0x08AE, 0x1027, iwl100_bg_cfg)},
4300 4301 4302 4303 4304 4305 4306 4307 4308

/* 130 Series WiFi */
	{IWL_PCI_DEVICE(0x0896, 0x5005, iwl130_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0896, 0x5007, iwl130_bg_cfg)},
	{IWL_PCI_DEVICE(0x0897, 0x5015, iwl130_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0897, 0x5017, iwl130_bg_cfg)},
	{IWL_PCI_DEVICE(0x0896, 0x5025, iwl130_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0896, 0x5027, iwl130_bg_cfg)},

W
Wey-Yi Guy 已提交
4309 4310 4311 4312 4313 4314 4315 4316 4317 4318 4319 4320 4321 4322 4323 4324 4325 4326 4327 4328 4329 4330 4331 4332 4333 4334 4335 4336 4337 4338 4339 4340 4341 4342 4343 4344 4345 4346 4347 4348 4349 4350 4351
/* 2x00 Series */
	{IWL_PCI_DEVICE(0x0890, 0x4022, iwl2000_2bgn_cfg)},
	{IWL_PCI_DEVICE(0x0891, 0x4222, iwl2000_2bgn_cfg)},
	{IWL_PCI_DEVICE(0x0890, 0x4422, iwl2000_2bgn_cfg)},
	{IWL_PCI_DEVICE(0x0890, 0x4026, iwl2000_2bg_cfg)},
	{IWL_PCI_DEVICE(0x0891, 0x4226, iwl2000_2bg_cfg)},
	{IWL_PCI_DEVICE(0x0890, 0x4426, iwl2000_2bg_cfg)},

/* 2x30 Series */
	{IWL_PCI_DEVICE(0x0887, 0x4062, iwl2030_2bgn_cfg)},
	{IWL_PCI_DEVICE(0x0888, 0x4262, iwl2030_2bgn_cfg)},
	{IWL_PCI_DEVICE(0x0887, 0x4462, iwl2030_2bgn_cfg)},
	{IWL_PCI_DEVICE(0x0887, 0x4066, iwl2030_2bg_cfg)},
	{IWL_PCI_DEVICE(0x0888, 0x4266, iwl2030_2bg_cfg)},
	{IWL_PCI_DEVICE(0x0887, 0x4466, iwl2030_2bg_cfg)},

/* 6x35 Series */
	{IWL_PCI_DEVICE(0x088E, 0x4060, iwl6035_2agn_cfg)},
	{IWL_PCI_DEVICE(0x088F, 0x4260, iwl6035_2agn_cfg)},
	{IWL_PCI_DEVICE(0x088E, 0x4460, iwl6035_2agn_cfg)},
	{IWL_PCI_DEVICE(0x088E, 0x4064, iwl6035_2abg_cfg)},
	{IWL_PCI_DEVICE(0x088F, 0x4264, iwl6035_2abg_cfg)},
	{IWL_PCI_DEVICE(0x088E, 0x4464, iwl6035_2abg_cfg)},
	{IWL_PCI_DEVICE(0x088E, 0x4066, iwl6035_2bg_cfg)},
	{IWL_PCI_DEVICE(0x088F, 0x4266, iwl6035_2bg_cfg)},
	{IWL_PCI_DEVICE(0x088E, 0x4466, iwl6035_2bg_cfg)},

/* 200 Series */
	{IWL_PCI_DEVICE(0x0894, 0x0022, iwl200_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0895, 0x0222, iwl200_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0894, 0x0422, iwl200_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0894, 0x0026, iwl200_bg_cfg)},
	{IWL_PCI_DEVICE(0x0895, 0x0226, iwl200_bg_cfg)},
	{IWL_PCI_DEVICE(0x0894, 0x0426, iwl200_bg_cfg)},

/* 230 Series */
	{IWL_PCI_DEVICE(0x0892, 0x0062, iwl230_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0893, 0x0262, iwl230_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0892, 0x0462, iwl230_bgn_cfg)},
	{IWL_PCI_DEVICE(0x0892, 0x0066, iwl230_bg_cfg)},
	{IWL_PCI_DEVICE(0x0893, 0x0266, iwl230_bg_cfg)},
	{IWL_PCI_DEVICE(0x0892, 0x0466, iwl230_bg_cfg)},

4352 4353 4354 4355 4356
	{0}
};
MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids);

static struct pci_driver iwl_driver = {
Z
Zhu Yi 已提交
4357
	.name = DRV_NAME,
4358
	.id_table = iwl_hw_card_ids,
4359 4360
	.probe = iwl_pci_probe,
	.remove = __devexit_p(iwl_pci_remove),
4361
	.driver.pm = IWL_PM_OPS,
Z
Zhu Yi 已提交
4362 4363
};

4364
static int __init iwl_init(void)
Z
Zhu Yi 已提交
4365 4366 4367
{

	int ret;
4368 4369
	pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n");
	pr_info(DRV_COPYRIGHT "\n");
4370

4371
	ret = iwlagn_rate_control_register();
4372
	if (ret) {
4373
		pr_err("Unable to register rate control algorithm: %d\n", ret);
4374 4375 4376
		return ret;
	}

4377
	ret = pci_register_driver(&iwl_driver);
Z
Zhu Yi 已提交
4378
	if (ret) {
4379
		pr_err("Unable to initialize PCI module\n");
4380
		goto error_register;
Z
Zhu Yi 已提交
4381 4382 4383
	}

	return ret;
4384 4385

error_register:
4386
	iwlagn_rate_control_unregister();
4387
	return ret;
Z
Zhu Yi 已提交
4388 4389
}

4390
static void __exit iwl_exit(void)
Z
Zhu Yi 已提交
4391
{
4392
	pci_unregister_driver(&iwl_driver);
4393
	iwlagn_rate_control_unregister();
Z
Zhu Yi 已提交
4394 4395
}

4396 4397
module_exit(iwl_exit);
module_init(iwl_init);
4398 4399

#ifdef CONFIG_IWLWIFI_DEBUG
4400
module_param_named(debug50, iwl_debug_level, uint, S_IRUGO);
4401
MODULE_PARM_DESC(debug50, "50XX debug output mask (deprecated)");
4402
module_param_named(debug, iwl_debug_level, uint, S_IRUGO | S_IWUSR);
4403 4404 4405
MODULE_PARM_DESC(debug, "debug output mask");
#endif

4406 4407 4408 4409 4410 4411 4412 4413 4414 4415 4416 4417 4418 4419 4420 4421 4422 4423 4424 4425 4426 4427 4428 4429 4430 4431 4432 4433 4434
module_param_named(swcrypto50, iwlagn_mod_params.sw_crypto, bool, S_IRUGO);
MODULE_PARM_DESC(swcrypto50,
		 "using crypto in software (default 0 [hardware]) (deprecated)");
module_param_named(swcrypto, iwlagn_mod_params.sw_crypto, int, S_IRUGO);
MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
module_param_named(queues_num50,
		   iwlagn_mod_params.num_of_queues, int, S_IRUGO);
MODULE_PARM_DESC(queues_num50,
		 "number of hw queues in 50xx series (deprecated)");
module_param_named(queues_num, iwlagn_mod_params.num_of_queues, int, S_IRUGO);
MODULE_PARM_DESC(queues_num, "number of hw queues.");
module_param_named(11n_disable50, iwlagn_mod_params.disable_11n, int, S_IRUGO);
MODULE_PARM_DESC(11n_disable50, "disable 50XX 11n functionality (deprecated)");
module_param_named(11n_disable, iwlagn_mod_params.disable_11n, int, S_IRUGO);
MODULE_PARM_DESC(11n_disable, "disable 11n functionality");
module_param_named(amsdu_size_8K50, iwlagn_mod_params.amsdu_size_8K,
		   int, S_IRUGO);
MODULE_PARM_DESC(amsdu_size_8K50,
		 "enable 8K amsdu size in 50XX series (deprecated)");
module_param_named(amsdu_size_8K, iwlagn_mod_params.amsdu_size_8K,
		   int, S_IRUGO);
MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size");
module_param_named(fw_restart50, iwlagn_mod_params.restart_fw, int, S_IRUGO);
MODULE_PARM_DESC(fw_restart50,
		 "restart firmware in case of error (deprecated)");
module_param_named(fw_restart, iwlagn_mod_params.restart_fw, int, S_IRUGO);
MODULE_PARM_DESC(fw_restart, "restart firmware in case of error");
module_param_named(
	disable_hw_scan, iwlagn_mod_params.disable_hw_scan, int, S_IRUGO);
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MODULE_PARM_DESC(disable_hw_scan,
		 "disable hardware scanning (default 0) (deprecated)");
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module_param_named(ucode_alternative, iwlagn_wanted_ucode_alternative, int,
		   S_IRUGO);
MODULE_PARM_DESC(ucode_alternative,
		 "specify ucode alternative to use from ucode file");
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module_param_named(antenna_coupling, iwlagn_ant_coupling, int, S_IRUGO);
MODULE_PARM_DESC(antenna_coupling,
		 "specify antenna coupling in dB (defualt: 0 dB)");
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module_param_named(bt_ch_inhibition, iwlagn_bt_ch_announce, bool, S_IRUGO);
MODULE_PARM_DESC(bt_ch_inhibition,
		 "Disable BT channel inhibition (default: enable)");
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module_param_named(plcp_check, iwlagn_mod_params.plcp_check, bool, S_IRUGO);
MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])");

module_param_named(ack_check, iwlagn_mod_params.ack_check, bool, S_IRUGO);
MODULE_PARM_DESC(ack_check, "Check ack health (default: 0 [disabled])");