[IWLWIFI]: add iwlwifi wireless drivers

This patch adds the mac80211 based wireless drivers for the Intel
PRO/Wireless 3945ABG/BG Network Connection and Intel Wireless WiFi
Link AGN (4965) adapters.

[ Move driver into it's own directory -DaveM ]

Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 713 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwlwifi.h b/drivers/net/wireless/iwlwifi/iwlwifi.h
new file mode 100644
index 000000000000..00c79e200c68
--- /dev/null
+++ b/drivers/net/wireless/iwlwifi/iwlwifi.h
@@ -0,0 +1,713 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2003 - 2007 Intel Corporation. All rights reserved.
+ *
+ * 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:
+ * James P. Ketrenos <ipw2100-admin@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ *****************************************************************************/
+
+#ifndef __iwlwifi_h__
+#define __iwlwifi_h__
+
+#include <linux/pci.h> /* for struct pci_device_id */
+#include <linux/kernel.h>
+#include <net/ieee80211_radiotap.h>
+
+struct iwl_priv;
+
+/* Hardware specific file defines the PCI IDs table for that hardware module */
+extern struct pci_device_id iwl_hw_card_ids[];
+
+#if IWL == 3945
+
+#define DRV_NAME        "iwl3945"
+#include "iwl-hw.h"
+#include "iwl-3945-hw.h"
+
+#elif IWL == 4965
+
+#define DRV_NAME        "iwl4965"
+#include "iwl-hw.h"
+#include "iwl-4965-hw.h"
+
+#endif
+
+#include "iwl-prph.h"
+
+/*
+ * Driver implementation data structures, constants, inline
+ * functions
+ *
+ * NOTE:  DO NOT PUT HARDWARE/UCODE SPECIFIC DECLRATIONS HERE
+ *
+ * Hardware specific declrations go into iwl-*hw.h
+ *
+ */
+
+#include "iwl-debug.h"
+
+/* Default noise level to report when noise measurement is not available.
+ *   This may be because we're:
+ *   1)  Not associated (4965, no beacon statistics being sent to driver)
+ *   2)  Scanning (noise measurement does not apply to associated channel)
+ *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
+ * Use default noise value of -127 ... this is below the range of measurable
+ *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
+ *   Also, -127 works better than 0 when averaging frames with/without
+ *   noise info (e.g. averaging might be done in app); measured dBm values are
+ *   always negative ... using a negative value as the default keeps all
+ *   averages within an s8's (used in some apps) range of negative values. */
+#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
+
+/* Module parameters accessible from iwl-*.c */
+extern int iwl_param_disable_hw_scan;
+extern int iwl_param_debug;
+extern int iwl_param_mode;
+extern int iwl_param_disable;
+extern int iwl_param_antenna;
+extern int iwl_param_hwcrypto;
+extern int iwl_param_qos_enable;
+extern int iwl_param_queues_num;
+
+enum iwl_antenna {
+        IWL_ANTENNA_DIVERSITY,
+        IWL_ANTENNA_MAIN,
+        IWL_ANTENNA_AUX
+};
+
+/*
+ * RTS threshold here is total size [2347] minus 4 FCS bytes
+ * Per spec:
+ *   a value of 0 means RTS on all data/management packets
+ *   a value > max MSDU size means no RTS
+ * else RTS for data/management frames where MPDU is larger
+ *   than RTS value.
+ */
+#define DEFAULT_RTS_THRESHOLD     2347U
+#define MIN_RTS_THRESHOLD         0U
+#define MAX_RTS_THRESHOLD         2347U
+#define MAX_MSDU_SIZE             2304U
+#define MAX_MPDU_SIZE             2346U
+#define DEFAULT_BEACON_INTERVAL   100U
+#define DEFAULT_SHORT_RETRY_LIMIT 7U
+#define DEFAULT_LONG_RETRY_LIMIT  4U
+
+struct iwl_rx_mem_buffer {
+        dma_addr_t dma_addr;
+        struct sk_buff *skb;
+        struct list_head list;
+};
+
+struct iwl_rt_rx_hdr {
+        struct ieee80211_radiotap_header rt_hdr;
+        __le64 rt_tsf;          /* TSF */
+        u8 rt_flags;            /* radiotap packet flags */
+        u8 rt_rate;             /* rate in 500kb/s */
+        __le16 rt_channelMHz;   /* channel in MHz */
+        __le16 rt_chbitmask;    /* channel bitfield */
+        s8 rt_dbmsignal;        /* signal in dBm, kluged to signed */
+        s8 rt_dbmnoise;
+        u8 rt_antenna;          /* antenna number */
+        u8 payload[0];          /* payload... */
+} __attribute__ ((packed));
+
+struct iwl_rt_tx_hdr {
+        struct ieee80211_radiotap_header rt_hdr;
+        u8 rt_rate;             /* rate in 500kb/s */
+        __le16 rt_channel;      /* channel in mHz */
+        __le16 rt_chbitmask;    /* channel bitfield */
+        s8 rt_dbmsignal;        /* signal in dBm, kluged to signed */
+        u8 rt_antenna;          /* antenna number */
+        u8 payload[0];          /* payload... */
+} __attribute__ ((packed));
+
+/*
+ * Generic queue structure
+ *
+ * Contains common data for Rx and Tx queues
+ */
+struct iwl_queue {
+        int n_bd;              /* number of BDs in this queue */
+        int first_empty;       /* 1-st empty entry (index) host_w*/
+        int last_used;         /* last used entry (index) host_r*/
+        dma_addr_t dma_addr;   /* physical addr for BD's */
+        int n_window;          /* safe queue window */
+        u32 id;
+        int low_mark;          /* low watermark, resume queue if free
+                                * space more than this */
+        int high_mark;         /* high watermark, stop queue if free
+                                * space less than this */
+} __attribute__ ((packed));
+
+#define MAX_NUM_OF_TBS          (20)
+
+struct iwl_tx_info {
+        struct ieee80211_tx_status status;
+        struct sk_buff *skb[MAX_NUM_OF_TBS];
+};
+
+/**
+ * struct iwl_tx_queue - Tx Queue for DMA
+ * @need_update: need to update read/write index
+ * @shed_retry: queue is HT AGG enabled
+ *
+ * Queue consists of circular buffer of BD's and required locking structures.
+ */
+struct iwl_tx_queue {
+        struct iwl_queue q;
+        struct iwl_tfd_frame *bd;
+        struct iwl_cmd *cmd;
+        dma_addr_t dma_addr_cmd;
+        struct iwl_tx_info *txb;
+        int need_update;
+        int sched_retry;
+        int active;
+};
+
+#include "iwl-channel.h"
+
+#if IWL == 3945
+#include "iwl-3945-rs.h"
+#else
+#include "iwl-4965-rs.h"
+#endif
+
+#define IWL_TX_FIFO_AC0 0
+#define IWL_TX_FIFO_AC1 1
+#define IWL_TX_FIFO_AC2 2
+#define IWL_TX_FIFO_AC3 3
+#define IWL_TX_FIFO_HCCA_1      5
+#define IWL_TX_FIFO_HCCA_2      6
+#define IWL_TX_FIFO_NONE        7
+
+/* Minimum number of queues. MAX_NUM is defined in hw specific files */
+#define IWL_MIN_NUM_QUEUES      4
+
+/* Power management (not Tx power) structures */
+
+struct iwl_power_vec_entry {
+        struct iwl_powertable_cmd cmd;
+        u8 no_dtim;
+};
+#define IWL_POWER_RANGE_0  (0)
+#define IWL_POWER_RANGE_1  (1)
+
+#define IWL_POWER_MODE_CAM      0x00    /* Continuously Aware Mode, always on */
+#define IWL_POWER_INDEX_3       0x03
+#define IWL_POWER_INDEX_5       0x05
+#define IWL_POWER_AC            0x06
+#define IWL_POWER_BATTERY       0x07
+#define IWL_POWER_LIMIT         0x07
+#define IWL_POWER_MASK          0x0F
+#define IWL_POWER_ENABLED       0x10
+#define IWL_POWER_LEVEL(x)      ((x) & IWL_POWER_MASK)
+
+struct iwl_power_mgr {
+        spinlock_t lock;
+        struct iwl_power_vec_entry pwr_range_0[IWL_POWER_AC];
+        struct iwl_power_vec_entry pwr_range_1[IWL_POWER_AC];
+        u8 active_index;
+        u32 dtim_val;
+};
+
+#define IEEE80211_DATA_LEN              2304
+#define IEEE80211_4ADDR_LEN             30
+#define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
+#define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
+
+struct iwl_frame {
+        union {
+                struct ieee80211_hdr frame;
+                struct iwl_tx_beacon_cmd beacon;
+                u8 raw[IEEE80211_FRAME_LEN];
+                u8 cmd[360];
+        } u;
+        struct list_head list;
+};
+
+#define SEQ_TO_QUEUE(x)  ((x >> 8) & 0xbf)
+#define QUEUE_TO_SEQ(x)  ((x & 0xbf) << 8)
+#define SEQ_TO_INDEX(x) (x & 0xff)
+#define INDEX_TO_SEQ(x) (x & 0xff)
+#define SEQ_HUGE_FRAME  (0x4000)
+#define SEQ_RX_FRAME    __constant_cpu_to_le16(0x8000)
+#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
+#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
+#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
+
+enum {
+        /* CMD_SIZE_NORMAL = 0, */
+        CMD_SIZE_HUGE = (1 << 0),
+        /* CMD_SYNC = 0, */
+        CMD_ASYNC = (1 << 1),
+        /* CMD_NO_SKB = 0, */
+        CMD_WANT_SKB = (1 << 2),
+};
+
+struct iwl_cmd;
+struct iwl_priv;
+
+struct iwl_cmd_meta {
+        struct iwl_cmd_meta *source;
+        union {
+                struct sk_buff *skb;
+                int (*callback)(struct iwl_priv *priv,
+                                struct iwl_cmd *cmd, struct sk_buff *skb);
+        } __attribute__ ((packed)) u;
+
+        /* The CMD_SIZE_HUGE flag bit indicates that the command
+         * structure is stored at the end of the shared queue memory. */
+        u32 flags;
+
+} __attribute__ ((packed));
+
+struct iwl_cmd {
+        struct iwl_cmd_meta meta;
+        struct iwl_cmd_header hdr;
+        union {
+                struct iwl_addsta_cmd addsta;
+                struct iwl_led_cmd led;
+                u32 flags;
+                u8 val8;
+                u16 val16;
+                u32 val32;
+                struct iwl_bt_cmd bt;
+                struct iwl_rxon_time_cmd rxon_time;
+                struct iwl_powertable_cmd powertable;
+                struct iwl_qosparam_cmd qosparam;
+                struct iwl_tx_cmd tx;
+                struct iwl_tx_beacon_cmd tx_beacon;
+                struct iwl_rxon_assoc_cmd rxon_assoc;
+                u8 *indirect;
+                u8 payload[360];
+        } __attribute__ ((packed)) cmd;
+} __attribute__ ((packed));
+
+struct iwl_host_cmd {
+        u8 id;
+        u16 len;
+        struct iwl_cmd_meta meta;
+        const void *data;
+};
+
+#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_cmd) - \
+                              sizeof(struct iwl_cmd_meta))
+
+/*
+ * RX related structures and functions
+ */
+#define RX_FREE_BUFFERS 64
+#define RX_LOW_WATERMARK 8
+
+#define SUP_RATE_11A_MAX_NUM_CHANNELS  8
+#define SUP_RATE_11B_MAX_NUM_CHANNELS  4
+#define SUP_RATE_11G_MAX_NUM_CHANNELS  12
+
+/**
+ * struct iwl_rx_queue - Rx queue
+ * @processed: Internal index to last handled Rx packet
+ * @read: Shared index to newest available Rx buffer
+ * @write: Shared index to oldest written Rx packet
+ * @free_count: Number of pre-allocated buffers in rx_free
+ * @rx_free: list of free SKBs for use
+ * @rx_used: List of Rx buffers with no SKB
+ * @need_update: flag to indicate we need to update read/write index
+ *
+ * NOTE:  rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
+ */
+struct iwl_rx_queue {
+        __le32 *bd;
+        dma_addr_t dma_addr;
+        struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
+        struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
+        u32 processed;
+        u32 read;
+        u32 write;
+        u32 free_count;
+        struct list_head rx_free;
+        struct list_head rx_used;
+        int need_update;
+        spinlock_t lock;
+};
+
+#define IWL_SUPPORTED_RATES_IE_LEN         8
+
+#define SCAN_INTERVAL 100
+
+#define MAX_A_CHANNELS  252
+#define MIN_A_CHANNELS  7
+
+#define MAX_B_CHANNELS  14
+#define MIN_B_CHANNELS  1
+
+#define STATUS_HCMD_ACTIVE      0       /* host command in progress */
+#define STATUS_INT_ENABLED      1
+#define STATUS_RF_KILL_HW       2
+#define STATUS_RF_KILL_SW       3
+#define STATUS_INIT             4
+#define STATUS_ALIVE            5
+#define STATUS_READY            6
+#define STATUS_TEMPERATURE      7
+#define STATUS_GEO_CONFIGURED   8
+#define STATUS_EXIT_PENDING     9
+#define STATUS_IN_SUSPEND       10
+#define STATUS_STATISTICS       11
+#define STATUS_SCANNING         12
+#define STATUS_SCAN_ABORTING    13
+#define STATUS_SCAN_HW          14
+#define STATUS_POWER_PMI        15
+#define STATUS_FW_ERROR         16
+
+#define MAX_TID_COUNT        9
+
+#define IWL_INVALID_RATE     0xFF
+#define IWL_INVALID_VALUE    -1
+
+#if IWL == 4965
+#ifdef CONFIG_IWLWIFI_HT
+#ifdef CONFIG_IWLWIFI_HT_AGG
+struct iwl_ht_agg {
+        u16 txq_id;
+        u16 frame_count;
+        u16 wait_for_ba;
+        u16 start_idx;
+        u32 bitmap0;
+        u32 bitmap1;
+        u32 rate_n_flags;
+};
+#endif /* CONFIG_IWLWIFI_HT_AGG */
+#endif /* CONFIG_IWLWIFI_HT */
+#endif
+
+struct iwl_tid_data {
+        u16 seq_number;
+#if IWL == 4965
+#ifdef CONFIG_IWLWIFI_HT
+#ifdef CONFIG_IWLWIFI_HT_AGG
+        struct iwl_ht_agg agg;
+#endif  /* CONFIG_IWLWIFI_HT_AGG */
+#endif /* CONFIG_IWLWIFI_HT */
+#endif
+};
+
+struct iwl_hw_key {
+        ieee80211_key_alg alg;
+        int keylen;
+        u8 key[32];
+};
+
+union iwl_ht_rate_supp {
+        u16 rates;
+        struct {
+                u8 siso_rate;
+                u8 mimo_rate;
+        };
+};
+
+#ifdef CONFIG_IWLWIFI_HT
+#define CFG_HT_RX_AMPDU_FACTOR_DEF  (0x3)
+#define HT_IE_MAX_AMSDU_SIZE_4K     (0)
+#define CFG_HT_MPDU_DENSITY_2USEC   (0x5)
+#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
+
+struct sta_ht_info {
+        u8 is_ht;
+        u16 rx_mimo_ps_mode;
+        u16 tx_mimo_ps_mode;
+        u16 control_channel;
+        u8 max_amsdu_size;
+        u8 ampdu_factor;
+        u8 mpdu_density;
+        u8 operating_mode;
+        u8 supported_chan_width;
+        u8 extension_chan_offset;
+        u8 is_green_field;
+        u8 sgf;
+        u8 supp_rates[16];
+        u8 tx_chan_width;
+        u8 chan_width_cap;
+};
+#endif                          /*CONFIG_IWLWIFI_HT */
+
+#ifdef CONFIG_IWLWIFI_QOS
+
+union iwl_qos_capabity {
+        struct {
+                u8 edca_count:4;        /* bit 0-3 */
+                u8 q_ack:1;             /* bit 4 */
+                u8 queue_request:1;     /* bit 5 */
+                u8 txop_request:1;      /* bit 6 */
+                u8 reserved:1;          /* bit 7 */
+        } q_AP;
+        struct {
+                u8 acvo_APSD:1;         /* bit 0 */
+                u8 acvi_APSD:1;         /* bit 1 */
+                u8 ac_bk_APSD:1;        /* bit 2 */
+                u8 ac_be_APSD:1;        /* bit 3 */
+                u8 q_ack:1;             /* bit 4 */
+                u8 max_len:2;           /* bit 5-6 */
+                u8 more_data_ack:1;     /* bit 7 */
+        } q_STA;
+        u8 val;
+};
+
+/* QoS sturctures */
+struct iwl_qos_info {
+        int qos_enable;
+        int qos_active;
+        union iwl_qos_capabity qos_cap;
+        struct iwl_qosparam_cmd def_qos_parm;
+};
+#endif /*CONFIG_IWLWIFI_QOS */
+
+#define STA_PS_STATUS_WAKE             0
+#define STA_PS_STATUS_SLEEP            1
+
+struct iwl_station_entry {
+        struct iwl_addsta_cmd sta;
+        struct iwl_tid_data tid[MAX_TID_COUNT];
+#if IWL == 3945
+        union {
+                struct {
+                        u8 rate;
+                        u8 flags;
+                } s;
+                u16 rate_n_flags;
+        } current_rate;
+#endif
+        u8 used;
+        u8 ps_status;
+        struct iwl_hw_key keyinfo;
+};
+
+/* one for each uCode image (inst/data, boot/init/runtime) */
+struct fw_image_desc {
+        void *v_addr;           /* access by driver */
+        dma_addr_t p_addr;      /* access by card's busmaster DMA */
+        u32 len;                /* bytes */
+};
+
+/* uCode file layout */
+struct iwl_ucode {
+        __le32 ver;             /* major/minor/subminor */
+        __le32 inst_size;       /* bytes of runtime instructions */
+        __le32 data_size;       /* bytes of runtime data */
+        __le32 init_size;       /* bytes of initialization instructions */
+        __le32 init_data_size;  /* bytes of initialization data */
+        __le32 boot_size;       /* bytes of bootstrap instructions */
+        u8 data[0];             /* data in same order as "size" elements */
+};
+
+#define IWL_IBSS_MAC_HASH_SIZE 32
+
+struct iwl_ibss_seq {
+        u8 mac[ETH_ALEN];
+        u16 seq_num;
+        u16 frag_num;
+        unsigned long packet_time;
+        struct list_head list;
+};
+
+struct iwl_driver_hw_info {
+        u16 max_txq_num;
+        u16 ac_queue_count;
+        u32 rx_buffer_size;
+        u16 tx_cmd_len;
+        u16 max_rxq_size;
+        u16 max_rxq_log;
+        u32 cck_flag;
+        u8  max_stations;
+        u8  bcast_sta_id;
+        void *shared_virt;
+        dma_addr_t shared_phys;
+};
+
+
+#define STA_FLG_RTS_MIMO_PROT_MSK       __constant_cpu_to_le32(1 << 17)
+#define STA_FLG_AGG_MPDU_8US_MSK        __constant_cpu_to_le32(1 << 18)
+#define STA_FLG_MAX_AGG_SIZE_POS        (19)
+#define STA_FLG_MAX_AGG_SIZE_MSK        __constant_cpu_to_le32(3 << 19)
+#define STA_FLG_FAT_EN_MSK              __constant_cpu_to_le32(1 << 21)
+#define STA_FLG_MIMO_DIS_MSK            __constant_cpu_to_le32(1 << 22)
+#define STA_FLG_AGG_MPDU_DENSITY_POS    (23)
+#define STA_FLG_AGG_MPDU_DENSITY_MSK    __constant_cpu_to_le32(7 << 23)
+#define HT_SHORT_GI_20MHZ_ONLY          (1 << 0)
+#define HT_SHORT_GI_40MHZ_ONLY          (1 << 1)
+
+
+#include "iwl-priv.h"
+
+/* Requires full declaration of iwl_priv before including */
+#include "iwl-io.h"
+
+#define IWL_RX_HDR(x) ((struct iwl_rx_frame_hdr *)(\
+                       x->u.rx_frame.stats.payload + \
+                       x->u.rx_frame.stats.phy_count))
+#define IWL_RX_END(x) ((struct iwl_rx_frame_end *)(\
+                       IWL_RX_HDR(x)->payload + \
+                       le16_to_cpu(IWL_RX_HDR(x)->len)))
+#define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
+#define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
+
+
+/******************************************************************************
+ *
+ * Functions implemented in iwl-base.c which are forward declared here
+ * for use by iwl-*.c
+ *
+ *****************************************************************************/
+struct iwl_addsta_cmd;
+extern int iwl_send_add_station(struct iwl_priv *priv,
+                                struct iwl_addsta_cmd *sta, u8 flags);
+extern const char *iwl_get_tx_fail_reason(u32 status);
+extern u8 iwl_add_station(struct iwl_priv *priv, const u8 *bssid,
+                          int is_ap, u8 flags);
+extern int iwl_is_network_packet(struct iwl_priv *priv,
+                                 struct ieee80211_hdr *header);
+extern int iwl_power_init_handle(struct iwl_priv *priv);
+extern int iwl_eeprom_init(struct iwl_priv *priv);
+#ifdef CONFIG_IWLWIFI_DEBUG
+extern void iwl_report_frame(struct iwl_priv *priv,
+                             struct iwl_rx_packet *pkt,
+                             struct ieee80211_hdr *header, int group100);
+#else
+static inline void iwl_report_frame(struct iwl_priv *priv,
+                                    struct iwl_rx_packet *pkt,
+                                    struct ieee80211_hdr *header,
+                                    int group100) {}
+#endif
+extern int iwl_tx_queue_update_write_ptr(struct iwl_priv *priv,
+                                         struct iwl_tx_queue *txq);
+extern void iwl_handle_data_packet_monitor(struct iwl_priv *priv,
+                                           struct iwl_rx_mem_buffer *rxb,
+                                           void *data, short len,
+                                           struct ieee80211_rx_status *stats,
+                                           u16 phy_flags);
+extern int is_duplicate_packet(struct iwl_priv *priv, struct ieee80211_hdr
+                               *header);
+extern void iwl_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
+extern int iwl_rx_queue_alloc(struct iwl_priv *priv);
+extern void iwl_rx_queue_reset(struct iwl_priv *priv,
+                               struct iwl_rx_queue *rxq);
+extern int iwl_calc_db_from_ratio(int sig_ratio);
+extern int iwl_calc_sig_qual(int rssi_dbm, int noise_dbm);
+extern int iwl_tx_queue_init(struct iwl_priv *priv,
+                             struct iwl_tx_queue *txq, int count, u32 id);
+extern int iwl_rx_queue_restock(struct iwl_priv *priv);
+extern void iwl_rx_replenish(void *data);
+extern void iwl_tx_queue_free(struct iwl_priv *priv, struct iwl_tx_queue *txq);
+extern int iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id, u16 len,
+                            const void *data);
+extern int __must_check iwl_send_cmd_async(struct iwl_priv *priv,
+                struct iwl_host_cmd *cmd);
+extern int __must_check iwl_send_cmd_sync(struct iwl_priv *priv,
+                struct iwl_host_cmd *cmd);
+extern int __must_check iwl_send_cmd(struct iwl_priv *priv,
+                struct iwl_host_cmd *cmd);
+extern unsigned int iwl_fill_beacon_frame(struct iwl_priv *priv,
+                                        struct ieee80211_hdr *hdr,
+                                        const u8 *dest, int left);
+extern int iwl_rx_queue_update_write_ptr(struct iwl_priv *priv,
+                                         struct iwl_rx_queue *q);
+extern int iwl_send_statistics_request(struct iwl_priv *priv);
+extern void iwl_set_decrypted_flag(struct iwl_priv *priv, struct sk_buff *skb,
+                                   u32 decrypt_res,
+                                   struct ieee80211_rx_status *stats);
+extern __le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr);
+
+extern const u8 BROADCAST_ADDR[ETH_ALEN];
+
+/*
+ * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
+ * call this... todo... fix that.
+*/
+extern u8 iwl_sync_station(struct iwl_priv *priv, int sta_id,
+                           u16 tx_rate, u8 flags);
+
+static inline int iwl_is_associated(struct iwl_priv *priv)
+{
+        return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
+}
+
+/******************************************************************************
+ *
+ * Functions implemented in iwl-[34]*.c which are forward declared here
+ * for use by iwl-base.c
+ *
+ * NOTE:  The implementation of these functions are hardware specific
+ * which is why they are in the hardware specific files (vs. iwl-base.c)
+ *
+ * Naming convention --
+ * iwl_         <-- Its part of iwlwifi (should be changed to iwl_)
+ * iwl_hw_      <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
+ * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
+ * iwl_bg_      <-- Called from work queue context
+ * iwl_mac_     <-- mac80211 callback
+ *
+ ****************************************************************************/
+extern void iwl_hw_rx_handler_setup(struct iwl_priv *priv);
+extern void iwl_hw_setup_deferred_work(struct iwl_priv *priv);
+extern void iwl_hw_cancel_deferred_work(struct iwl_priv *priv);
+extern int iwl_hw_rxq_stop(struct iwl_priv *priv);
+extern int iwl_hw_set_hw_setting(struct iwl_priv *priv);
+extern int iwl_hw_nic_init(struct iwl_priv *priv);
+extern void iwl_hw_card_show_info(struct iwl_priv *priv);
+extern int iwl_hw_nic_stop_master(struct iwl_priv *priv);
+extern void iwl_hw_txq_ctx_free(struct iwl_priv *priv);
+extern void iwl_hw_txq_ctx_stop(struct iwl_priv *priv);
+extern int iwl_hw_nic_reset(struct iwl_priv *priv);
+extern int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *tfd,
+                                        dma_addr_t addr, u16 len);
+extern int iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq);
+extern int iwl_hw_get_temperature(struct iwl_priv *priv);
+extern int iwl_hw_tx_queue_init(struct iwl_priv *priv,
+                                struct iwl_tx_queue *txq);
+extern unsigned int iwl_hw_get_beacon_cmd(struct iwl_priv *priv,
+                                 struct iwl_frame *frame, u8 rate);
+extern int iwl_hw_get_rx_read(struct iwl_priv *priv);
+extern void iwl_hw_build_tx_cmd_rate(struct iwl_priv *priv,
+                                     struct iwl_cmd *cmd,
+                                     struct ieee80211_tx_control *ctrl,
+                                     struct ieee80211_hdr *hdr,
+                                     int sta_id, int tx_id);
+extern int iwl_hw_reg_send_txpower(struct iwl_priv *priv);
+extern int iwl_hw_reg_set_txpower(struct iwl_priv *priv, s8 power);
+extern void iwl_hw_rx_statistics(struct iwl_priv *priv,
+                                 struct iwl_rx_mem_buffer *rxb);
+extern void iwl_disable_events(struct iwl_priv *priv);
+extern int iwl4965_get_temperature(const struct iwl_priv *priv);
+
+/**
+ * iwl_hw_find_station - Find station id for a given BSSID
+ * @bssid: MAC address of station ID to find
+ *
+ * NOTE:  This should not be hardware specific but the code has
+ * not yet been merged into a single common layer for managing the
+ * station tables.
+ */
+extern u8 iwl_hw_find_station(struct iwl_priv *priv, const u8 *bssid);
+
+extern int iwl_hw_channel_switch(struct iwl_priv *priv, u16 channel);
+extern int iwl_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index);
+#endif