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/******************************************************************************

 *

 * 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[];

#include "iwl-hw.h"

#if IWL == 3945

#define DRV_NAME        "iwl3945"

#include "iwl-3945-hw.h"

#elif IWL == 4965

#define DRV_NAME        "iwl4965"

#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 {

        enum 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