iwlwifi: keep 3945 and 4965 headers separate

The iwl3945 and iwl4965 devices share some common structure, but with a
lot of difference split all over.  Currently the two drivers share a lot
of headers and use ugly preprocessor magic to manage the difference.

This patch keeps two entirely separate copies of the headers to get rid
of these hacks an ease future development.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 960 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.h b/drivers/net/wireless/iwlwifi/iwl-3945.h
index adb5d672e711..ab8412270f6f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.h
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.h
@@ -27,6 +27,684 @@
 #ifndef __iwl_3945_h__
 #define __iwl_3945_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[];
+
+#define DRV_NAME        "iwl3945"
+#include "iwl-3945-hw.h"
+#include "iwl-prph.h"
+#include "iwl-3945-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_hwcrypto;
+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 write_ptr;       /* 1-st empty entry (index) host_w*/
+        int read_ptr;         /* 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;
+};
+
+#define IWL_NUM_SCAN_RATES         (2)
+
+struct iwl_channel_tgd_info {
+        u8 type;
+        s8 max_power;
+};
+
+struct iwl_channel_tgh_info {
+        s64 last_radar_time;
+};
+
+/* current Tx power values to use, one for each rate for each channel.
+ * requested power is limited by:
+ * -- regulatory EEPROM limits for this channel
+ * -- hardware capabilities (clip-powers)
+ * -- spectrum management
+ * -- user preference (e.g. iwconfig)
+ * when requested power is set, base power index must also be set. */
+struct iwl_channel_power_info {
+        struct iwl_tx_power tpc;        /* actual radio and DSP gain settings */
+        s8 power_table_index;   /* actual (compenst'd) index into gain table */
+        s8 base_power_index;    /* gain index for power at factory temp. */
+        s8 requested_power;     /* power (dBm) requested for this chnl/rate */
+};
+
+/* current scan Tx power values to use, one for each scan rate for each
+ * channel. */
+struct iwl_scan_power_info {
+        struct iwl_tx_power tpc;        /* actual radio and DSP gain settings */
+        s8 power_table_index;   /* actual (compenst'd) index into gain table */
+        s8 requested_power;     /* scan pwr (dBm) requested for chnl/rate */
+};
+
+/* Channel unlock period is 15 seconds. If no beacon or probe response
+ * has been received within 15 seconds on a locked channel then the channel
+ * remains locked. */
+#define TX_UNLOCK_PERIOD 15
+
+/* CSA lock period is 15 seconds.  If a CSA has been received on a channel in
+ * the last 15 seconds, the channel is locked */
+#define CSA_LOCK_PERIOD 15
+/*
+ * One for each channel, holds all channel setup data
+ * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
+ *     with one another!
+ */
+#define IWL4965_MAX_RATE (33)
+
+struct iwl_channel_info {
+        struct iwl_channel_tgd_info tgd;
+        struct iwl_channel_tgh_info tgh;
+        struct iwl_eeprom_channel eeprom;       /* EEPROM regulatory limit */
+        struct iwl_eeprom_channel fat_eeprom;   /* EEPROM regulatory limit for
+                                                 * FAT channel */
+
+        u8 channel;       /* channel number */
+        u8 flags;         /* flags copied from EEPROM */
+        s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
+        s8 curr_txpow;    /* (dBm) regulatory/spectrum/user (not h/w) */
+        s8 min_power;     /* always 0 */
+        s8 scan_power;    /* (dBm) regul. eeprom, direct scans, any rate */
+
+        u8 group_index;   /* 0-4, maps channel to group1/2/3/4/5 */
+        u8 band_index;    /* 0-4, maps channel to band1/2/3/4/5 */
+        u8 phymode;       /* MODE_IEEE80211{A,B,G} */
+
+        /* Radio/DSP gain settings for each "normal" data Tx rate.
+         * These include, in addition to RF and DSP gain, a few fields for
+         *   remembering/modifying gain settings (indexes). */
+        struct iwl_channel_power_info power_info[IWL4965_MAX_RATE];
+
+        /* Radio/DSP gain settings for each scan rate, for directed scans. */
+        struct iwl_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
+};
+
+struct iwl_clip_group {
+        /* maximum power level to prevent clipping for each rate, derived by
+         *   us from this band's saturation power in EEPROM */
+        const s8 clip_powers[IWL_MAX_RATES];
+};
+
+#include "iwl-3945-rs.h"
+
+#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
+
+struct iwl_tid_data {
+        u16 seq_number;
+};
+
+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 structures */
+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];
+        union {
+                struct {
+                        u8 rate;
+                        u8 flags;
+                } s;
+                u16 rate_n_flags;
+        } current_rate;
+        u8 used;
+        u8 ps_status;
+        struct iwl_hw_key keyinfo;
+};
+
+/* one for each uCode image (inst/data, boot/init/runtime) */
+struct fw_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;
+        u16 tx_cmd_len;
+        u16 max_rxq_size;
+        u32 rx_buffer_size;
+        u16 max_rxq_log;
+        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)
+
+
+#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 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 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 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 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(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 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);
+
+/******************************************************************************
+ *
+ * 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 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);
+
 /*
  * Forward declare iwl-3945.c functions for iwl-base.c
  */
@@ -37,4 +715,286 @@ extern void iwl3945_reg_txpower_periodic(struct iwl_priv *priv);
 extern int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv);
 extern u8 iwl3945_sync_sta(struct iwl_priv *priv, int sta_id,
                  u16 tx_rate, u8 flags);
+
+
+#ifdef CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT
+
+enum {
+        MEASUREMENT_READY = (1 << 0),
+        MEASUREMENT_ACTIVE = (1 << 1),
+};
+
+#endif
+
+struct iwl_priv {
+
+        /* ieee device used by generic ieee processing code */
+        struct ieee80211_hw *hw;
+        struct ieee80211_channel *ieee_channels;
+        struct ieee80211_rate *ieee_rates;
+
+        /* temporary frame storage list */
+        struct list_head free_frames;
+        int frames_count;
+
+        u8 phymode;
+        int alloc_rxb_skb;
+
+        void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
+                                       struct iwl_rx_mem_buffer *rxb);
+
+        const struct ieee80211_hw_mode *modes;
+
+#ifdef CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT
+        /* spectrum measurement report caching */
+        struct iwl_spectrum_notification measure_report;
+        u8 measurement_status;
+#endif
+        /* ucode beacon time */
+        u32 ucode_beacon_time;
+
+        /* we allocate array of iwl_channel_info for NIC's valid channels.
+         *    Access via channel # using indirect index array */
+        struct iwl_channel_info *channel_info;  /* channel info array */
+        u8 channel_count;       /* # of channels */
+
+        /* each calibration channel group in the EEPROM has a derived
+         * clip setting for each rate. */
+        const struct iwl_clip_group clip_groups[5];
+
+        /* thermal calibration */
+        s32 temperature;        /* degrees Kelvin */
+        s32 last_temperature;
+
+        /* Scan related variables */
+        unsigned long last_scan_jiffies;
+        unsigned long scan_start;
+        unsigned long scan_pass_start;
+        unsigned long scan_start_tsf;
+        int scan_bands;
+        int one_direct_scan;
+        u8 direct_ssid_len;
+        u8 direct_ssid[IW_ESSID_MAX_SIZE];
+        struct iwl_scan_cmd *scan;
+        u8 only_active_channel;
+
+        /* spinlock */
+        spinlock_t lock;        /* protect general shared data */
+        spinlock_t hcmd_lock;   /* protect hcmd */
+        struct mutex mutex;
+
+        /* basic pci-network driver stuff */
+        struct pci_dev *pci_dev;
+
+        /* pci hardware address support */
+        void __iomem *hw_base;
+
+        /* uCode images, save to reload in case of failure */
+        struct fw_desc ucode_code;      /* runtime inst */
+        struct fw_desc ucode_data;      /* runtime data original */
+        struct fw_desc ucode_data_backup;       /* runtime data save/restore */
+        struct fw_desc ucode_init;      /* initialization inst */
+        struct fw_desc ucode_init_data; /* initialization data */
+        struct fw_desc ucode_boot;      /* bootstrap inst */
+
+
+        struct iwl_rxon_time_cmd rxon_timing;
+
+        /* We declare this const so it can only be
+         * changed via explicit cast within the
+         * routines that actually update the physical
+         * hardware */
+        const struct iwl_rxon_cmd active_rxon;
+        struct iwl_rxon_cmd staging_rxon;
+
+        int error_recovering;
+        struct iwl_rxon_cmd recovery_rxon;
+
+        /* 1st responses from initialize and runtime uCode images.
+         * 4965's initialize alive response contains some calibration data. */
+        struct iwl_init_alive_resp card_alive_init;
+        struct iwl_alive_resp card_alive;
+
+#ifdef LED
+        /* LED related variables */
+        struct iwl_activity_blink activity;
+        unsigned long led_packets;
+        int led_state;
+#endif
+
+        u16 active_rate;
+        u16 active_rate_basic;
+
+        u8 call_post_assoc_from_beacon;
+        u8 assoc_station_added;
+        /* Rate scaling data */
+        s8 data_retry_limit;
+        u8 retry_rate;
+
+        wait_queue_head_t wait_command_queue;
+
+        int activity_timer_active;
+
+        /* Rx and Tx DMA processing queues */
+        struct iwl_rx_queue rxq;
+        struct iwl_tx_queue txq[IWL_MAX_NUM_QUEUES];
+
+        unsigned long status;
+        u32 config;
+
+        int last_rx_rssi;       /* From Rx packet statisitics */
+        int last_rx_noise;      /* From beacon statistics */
+
+        struct iwl_power_mgr power_data;
+
+        struct iwl_notif_statistics statistics;
+        unsigned long last_statistics_time;
+
+        /* context information */
+        u8 essid[IW_ESSID_MAX_SIZE];
+        u8 essid_len;
+        u16 rates_mask;
+
+        u32 power_mode;
+        u32 antenna;
+        u8 bssid[ETH_ALEN];
+        u16 rts_threshold;
+        u8 mac_addr[ETH_ALEN];
+
+        /*station table variables */
+        spinlock_t sta_lock;
+        int num_stations;
+        struct iwl_station_entry stations[IWL_STATION_COUNT];
+
+        /* Indication if ieee80211_ops->open has been called */
+        int is_open;
+
+        u8 mac80211_registered;
+        int is_abg;
+
+        u32 notif_missed_beacons;
+
+        /* Rx'd packet timing information */
+        u32 last_beacon_time;
+        u64 last_tsf;
+
+        /* Duplicate packet detection */
+        u16 last_seq_num;
+        u16 last_frag_num;
+        unsigned long last_packet_time;
+        struct list_head ibss_mac_hash[IWL_IBSS_MAC_HASH_SIZE];
+
+        /* eeprom */
+        struct iwl_eeprom eeprom;
+
+        int iw_mode;
+
+        struct sk_buff *ibss_beacon;
+
+        /* Last Rx'd beacon timestamp */
+        u32 timestamp0;
+        u32 timestamp1;
+        u16 beacon_int;
+        struct iwl_driver_hw_info hw_setting;
+        int interface_id;
+
+        /* Current association information needed to configure the
+         * hardware */
+        u16 assoc_id;
+        u16 assoc_capability;
+        u8 ps_mode;
+
+#ifdef CONFIG_IWLWIFI_QOS
+        struct iwl_qos_info qos_data;
+#endif /*CONFIG_IWLWIFI_QOS */
+
+        struct workqueue_struct *workqueue;
+
+        struct work_struct up;
+        struct work_struct restart;
+        struct work_struct calibrated_work;
+        struct work_struct scan_completed;
+        struct work_struct rx_replenish;
+        struct work_struct rf_kill;
+        struct work_struct abort_scan;
+        struct work_struct update_link_led;
+        struct work_struct auth_work;
+        struct work_struct report_work;
+        struct work_struct request_scan;
+        struct work_struct beacon_update;
+
+        struct tasklet_struct irq_tasklet;
+
+        struct delayed_work init_alive_start;
+        struct delayed_work alive_start;
+        struct delayed_work activity_timer;
+        struct delayed_work thermal_periodic;
+        struct delayed_work gather_stats;
+        struct delayed_work scan_check;
+        struct delayed_work post_associate;
+
+#define IWL_DEFAULT_TX_POWER 0x0F
+        s8 user_txpower_limit;
+        s8 max_channel_txpower_limit;
+
+#ifdef CONFIG_PM
+        u32 pm_state[16];
+#endif
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+        /* debugging info */
+        u32 framecnt_to_us;
+        atomic_t restrict_refcnt;
+#endif
+};                              /*iwl_priv */
+
+static inline int iwl_is_associated(struct iwl_priv *priv)
+{
+        return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
+}
+
+static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
+{
+        if (ch_info == NULL)
+                return 0;
+        return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
+}
+
+static inline int is_channel_narrow(const struct iwl_channel_info *ch_info)
+{
+        return (ch_info->flags & EEPROM_CHANNEL_NARROW) ? 1 : 0;
+}
+
+static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
+{
+        return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
+}
+
+static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
+{
+        return ch_info->phymode == MODE_IEEE80211A;
+}
+
+static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
+{
+        return ((ch_info->phymode == MODE_IEEE80211B) ||
+                (ch_info->phymode == MODE_IEEE80211G));
+}
+
+static inline int is_channel_passive(const struct iwl_channel_info *ch)
+{
+        return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
+}
+
+static inline int is_channel_ibss(const struct iwl_channel_info *ch)
+{
+        return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
+}
+
+extern const struct iwl_channel_info *iwl_get_channel_info(
+        const struct iwl_priv *priv, int phymode, u16 channel);
+
+/* Requires full declaration of iwl_priv before including */
+#include "iwl-3945-io.h"
+
 #endif