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/******************************************************************************
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  Copyright(c) 2003 - 2005 Intel Corporation. All rights reserved.
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  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
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  published by the Free Software Foundation.
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  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
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  more details.
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  You should have received a copy of the GNU General Public License along with
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  this program; if not, write to the Free Software Foundation, Inc., 59
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  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
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  The full GNU General Public License is included in this distribution in the
  file called LICENSE.
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  Contact Information:
  James P. Ketrenos <ipw2100-admin@linux.intel.com>
  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497

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

#ifndef __ipw2200_h__
#define __ipw2200_h__

#define WEXT_USECHANNELS 1

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/config.h>
#include <linux/init.h>

#include <linux/version.h>
#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/ethtool.h>
#include <linux/skbuff.h>
#include <linux/etherdevice.h>
#include <linux/delay.h>
#include <linux/random.h>
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#include <linux/dma-mapping.h>
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#include <linux/firmware.h>
#include <linux/wireless.h>
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#include <linux/dma-mapping.h>
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#include <asm/io.h>

#include <net/ieee80211.h>
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#include <net/ieee80211_radiotap.h>
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#define DRV_NAME	"ipw2200"

#include <linux/workqueue.h>

/* Authentication  and Association States */
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enum connection_manager_assoc_states {
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	CMAS_INIT = 0,
	CMAS_TX_AUTH_SEQ_1,
	CMAS_RX_AUTH_SEQ_2,
	CMAS_AUTH_SEQ_1_PASS,
	CMAS_AUTH_SEQ_1_FAIL,
	CMAS_TX_AUTH_SEQ_3,
	CMAS_RX_AUTH_SEQ_4,
	CMAS_AUTH_SEQ_2_PASS,
	CMAS_AUTH_SEQ_2_FAIL,
	CMAS_AUTHENTICATED,
	CMAS_TX_ASSOC,
	CMAS_RX_ASSOC_RESP,
	CMAS_ASSOCIATED,
	CMAS_LAST
};

#define IPW_WAIT                     (1<<0)
#define IPW_QUIET                    (1<<1)
#define IPW_ROAMING                  (1<<2)

#define IPW_POWER_MODE_CAM           0x00	//(always on)
#define IPW_POWER_INDEX_1            0x01
#define IPW_POWER_INDEX_2            0x02
#define IPW_POWER_INDEX_3            0x03
#define IPW_POWER_INDEX_4            0x04
#define IPW_POWER_INDEX_5            0x05
#define IPW_POWER_AC                 0x06
#define IPW_POWER_BATTERY            0x07
#define IPW_POWER_LIMIT              0x07
#define IPW_POWER_MASK               0x0F
#define IPW_POWER_ENABLED            0x10
#define IPW_POWER_LEVEL(x)           ((x) & IPW_POWER_MASK)

#define IPW_CMD_HOST_COMPLETE                 2
#define IPW_CMD_POWER_DOWN                    4
#define IPW_CMD_SYSTEM_CONFIG                 6
#define IPW_CMD_MULTICAST_ADDRESS             7
#define IPW_CMD_SSID                          8
#define IPW_CMD_ADAPTER_ADDRESS              11
#define IPW_CMD_PORT_TYPE                    12
#define IPW_CMD_RTS_THRESHOLD                15
#define IPW_CMD_FRAG_THRESHOLD               16
#define IPW_CMD_POWER_MODE                   17
#define IPW_CMD_WEP_KEY                      18
#define IPW_CMD_TGI_TX_KEY                   19
#define IPW_CMD_SCAN_REQUEST                 20
#define IPW_CMD_ASSOCIATE                    21
#define IPW_CMD_SUPPORTED_RATES              22
#define IPW_CMD_SCAN_ABORT                   23
#define IPW_CMD_TX_FLUSH                     24
#define IPW_CMD_QOS_PARAMETERS               25
#define IPW_CMD_SCAN_REQUEST_EXT             26
#define IPW_CMD_DINO_CONFIG                  30
#define IPW_CMD_RSN_CAPABILITIES             31
#define IPW_CMD_RX_KEY                       32
#define IPW_CMD_CARD_DISABLE                 33
#define IPW_CMD_SEED_NUMBER                  34
#define IPW_CMD_TX_POWER                     35
#define IPW_CMD_COUNTRY_INFO                 36
#define IPW_CMD_AIRONET_INFO                 37
#define IPW_CMD_AP_TX_POWER                  38
#define IPW_CMD_CCKM_INFO                    39
#define IPW_CMD_CCX_VER_INFO                 40
#define IPW_CMD_SET_CALIBRATION              41
#define IPW_CMD_SENSITIVITY_CALIB            42
#define IPW_CMD_RETRY_LIMIT                  51
#define IPW_CMD_IPW_PRE_POWER_DOWN           58
#define IPW_CMD_VAP_BEACON_TEMPLATE          60
#define IPW_CMD_VAP_DTIM_PERIOD              61
#define IPW_CMD_EXT_SUPPORTED_RATES          62
#define IPW_CMD_VAP_LOCAL_TX_PWR_CONSTRAINT  63
#define IPW_CMD_VAP_QUIET_INTERVALS          64
#define IPW_CMD_VAP_CHANNEL_SWITCH           65
#define IPW_CMD_VAP_MANDATORY_CHANNELS       66
#define IPW_CMD_VAP_CELL_PWR_LIMIT           67
#define IPW_CMD_VAP_CF_PARAM_SET             68
#define IPW_CMD_VAP_SET_BEACONING_STATE      69
#define IPW_CMD_MEASUREMENT                  80
#define IPW_CMD_POWER_CAPABILITY             81
#define IPW_CMD_SUPPORTED_CHANNELS           82
#define IPW_CMD_TPC_REPORT                   83
#define IPW_CMD_WME_INFO                     84
#define IPW_CMD_PRODUCTION_COMMAND	     85
#define IPW_CMD_LINKSYS_EOU_INFO             90

#define RFD_SIZE                              4
#define NUM_TFD_CHUNKS                        6

#define TX_QUEUE_SIZE                        32
#define RX_QUEUE_SIZE                        32

#define DINO_CMD_WEP_KEY                   0x08
#define DINO_CMD_TX                        0x0B
#define DCT_ANTENNA_A                      0x01
#define DCT_ANTENNA_B                      0x02

#define IPW_A_MODE                         0
#define IPW_B_MODE                         1
#define IPW_G_MODE                         2

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/*
 * TX Queue Flag Definitions
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 */

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/* tx wep key definition */
#define DCT_WEP_KEY_NOT_IMMIDIATE	0x00
#define DCT_WEP_KEY_64Bit		0x40
#define DCT_WEP_KEY_128Bit		0x80
#define DCT_WEP_KEY_128bitIV		0xC0
#define DCT_WEP_KEY_SIZE_MASK		0xC0

#define DCT_WEP_KEY_INDEX_MASK		0x0F
#define DCT_WEP_INDEX_USE_IMMEDIATE	0x20

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/* abort attempt if mgmt frame is rx'd */
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#define DCT_FLAG_ABORT_MGMT                0x01

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/* require CTS */
#define DCT_FLAG_CTS_REQUIRED              0x02

/* use short preamble */
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#define DCT_FLAG_LONG_PREAMBLE             0x00
#define DCT_FLAG_SHORT_PREAMBLE            0x04
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/* RTS/CTS first */
#define DCT_FLAG_RTS_REQD                  0x08

/* dont calculate duration field */
#define DCT_FLAG_DUR_SET                   0x10

/* even if MAC WEP set (allows pre-encrypt) */
#define DCT_FLAG_NO_WEP              0x20
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/* overwrite TSF field */
#define DCT_FLAG_TSF_REQD                  0x40

/* ACK rx is expected to follow */
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#define DCT_FLAG_ACK_REQD                  0x80
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/* TX flags extension */
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#define DCT_FLAG_EXT_MODE_CCK  0x01
#define DCT_FLAG_EXT_MODE_OFDM 0x00

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#define DCT_FLAG_EXT_SECURITY_WEP     0x00
#define DCT_FLAG_EXT_SECURITY_NO      DCT_FLAG_EXT_SECURITY_WEP
#define DCT_FLAG_EXT_SECURITY_CKIP    0x04
#define DCT_FLAG_EXT_SECURITY_CCM     0x08
#define DCT_FLAG_EXT_SECURITY_TKIP    0x0C
#define DCT_FLAG_EXT_SECURITY_MASK    0x0C

#define DCT_FLAG_EXT_QOS_ENABLED      0x10

#define DCT_FLAG_EXT_HC_NO_SIFS_PIFS  0x00
#define DCT_FLAG_EXT_HC_SIFS          0x20
#define DCT_FLAG_EXT_HC_PIFS          0x40

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#define TX_RX_TYPE_MASK                    0xFF
#define TX_FRAME_TYPE                      0x00
#define TX_HOST_COMMAND_TYPE               0x01
#define RX_FRAME_TYPE                      0x09
#define RX_HOST_NOTIFICATION_TYPE          0x03
#define RX_HOST_CMD_RESPONSE_TYPE          0x04
#define RX_TX_FRAME_RESPONSE_TYPE          0x05
#define TFD_NEED_IRQ_MASK                  0x04

#define HOST_CMD_DINO_CONFIG               30

#define HOST_NOTIFICATION_STATUS_ASSOCIATED             10
#define HOST_NOTIFICATION_STATUS_AUTHENTICATE           11
#define HOST_NOTIFICATION_STATUS_SCAN_CHANNEL_RESULT    12
#define HOST_NOTIFICATION_STATUS_SCAN_COMPLETED         13
#define HOST_NOTIFICATION_STATUS_FRAG_LENGTH            14
#define HOST_NOTIFICATION_STATUS_LINK_DETERIORATION     15
#define HOST_NOTIFICATION_DINO_CONFIG_RESPONSE          16
#define HOST_NOTIFICATION_STATUS_BEACON_STATE           17
#define HOST_NOTIFICATION_STATUS_TGI_TX_KEY             18
#define HOST_NOTIFICATION_TX_STATUS                     19
#define HOST_NOTIFICATION_CALIB_KEEP_RESULTS            20
#define HOST_NOTIFICATION_MEASUREMENT_STARTED           21
#define HOST_NOTIFICATION_MEASUREMENT_ENDED             22
#define HOST_NOTIFICATION_CHANNEL_SWITCHED              23
#define HOST_NOTIFICATION_RX_DURING_QUIET_PERIOD        24
#define HOST_NOTIFICATION_NOISE_STATS			25
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#define HOST_NOTIFICATION_S36_MEASUREMENT_ACCEPTED      30
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#define HOST_NOTIFICATION_S36_MEASUREMENT_REFUSED       31

#define HOST_NOTIFICATION_STATUS_BEACON_MISSING         1
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#define IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT           24
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#define IPW_MB_ROAMING_THRESHOLD_DEFAULT                8
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#define IPW_REAL_RATE_RX_PACKET_THRESHOLD               300
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#define MACADRR_BYTE_LEN                     6

#define DCR_TYPE_AP                       0x01
#define DCR_TYPE_WLAP                     0x02
#define DCR_TYPE_MU_ESS                   0x03
#define DCR_TYPE_MU_IBSS                  0x04
#define DCR_TYPE_MU_PIBSS                 0x05
#define DCR_TYPE_SNIFFER                  0x06
#define DCR_TYPE_MU_BSS        DCR_TYPE_MU_ESS

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/* QoS  definitions */

#define CW_MIN_OFDM          15
#define CW_MAX_OFDM          1023
#define CW_MIN_CCK           31
#define CW_MAX_CCK           1023

#define QOS_TX0_CW_MIN_OFDM      CW_MIN_OFDM
#define QOS_TX1_CW_MIN_OFDM      CW_MIN_OFDM
#define QOS_TX2_CW_MIN_OFDM      ( (CW_MIN_OFDM + 1) / 2 - 1 )
#define QOS_TX3_CW_MIN_OFDM      ( (CW_MIN_OFDM + 1) / 4 - 1 )

#define QOS_TX0_CW_MIN_CCK       CW_MIN_CCK
#define QOS_TX1_CW_MIN_CCK       CW_MIN_CCK
#define QOS_TX2_CW_MIN_CCK       ( (CW_MIN_CCK + 1) / 2 - 1 )
#define QOS_TX3_CW_MIN_CCK       ( (CW_MIN_CCK + 1) / 4 - 1 )

#define QOS_TX0_CW_MAX_OFDM      CW_MAX_OFDM
#define QOS_TX1_CW_MAX_OFDM      CW_MAX_OFDM
#define QOS_TX2_CW_MAX_OFDM      CW_MIN_OFDM
#define QOS_TX3_CW_MAX_OFDM      ( (CW_MIN_OFDM + 1) / 2 - 1 )

#define QOS_TX0_CW_MAX_CCK       CW_MAX_CCK
#define QOS_TX1_CW_MAX_CCK       CW_MAX_CCK
#define QOS_TX2_CW_MAX_CCK       CW_MIN_CCK
#define QOS_TX3_CW_MAX_CCK       ( (CW_MIN_CCK + 1) / 2 - 1 )

#define QOS_TX0_AIFS            (3 - QOS_AIFSN_MIN_VALUE)
#define QOS_TX1_AIFS            (7 - QOS_AIFSN_MIN_VALUE)
#define QOS_TX2_AIFS            (2 - QOS_AIFSN_MIN_VALUE)
#define QOS_TX3_AIFS            (2 - QOS_AIFSN_MIN_VALUE)

#define QOS_TX0_ACM             0
#define QOS_TX1_ACM             0
#define QOS_TX2_ACM             0
#define QOS_TX3_ACM             0

#define QOS_TX0_TXOP_LIMIT_CCK          0
#define QOS_TX1_TXOP_LIMIT_CCK          0
#define QOS_TX2_TXOP_LIMIT_CCK          6016
#define QOS_TX3_TXOP_LIMIT_CCK          3264

#define QOS_TX0_TXOP_LIMIT_OFDM      0
#define QOS_TX1_TXOP_LIMIT_OFDM      0
#define QOS_TX2_TXOP_LIMIT_OFDM      3008
#define QOS_TX3_TXOP_LIMIT_OFDM      1504

#define DEF_TX0_CW_MIN_OFDM      CW_MIN_OFDM
#define DEF_TX1_CW_MIN_OFDM      CW_MIN_OFDM
#define DEF_TX2_CW_MIN_OFDM      CW_MIN_OFDM
#define DEF_TX3_CW_MIN_OFDM      CW_MIN_OFDM

#define DEF_TX0_CW_MIN_CCK       CW_MIN_CCK
#define DEF_TX1_CW_MIN_CCK       CW_MIN_CCK
#define DEF_TX2_CW_MIN_CCK       CW_MIN_CCK
#define DEF_TX3_CW_MIN_CCK       CW_MIN_CCK

#define DEF_TX0_CW_MAX_OFDM      CW_MAX_OFDM
#define DEF_TX1_CW_MAX_OFDM      CW_MAX_OFDM
#define DEF_TX2_CW_MAX_OFDM      CW_MAX_OFDM
#define DEF_TX3_CW_MAX_OFDM      CW_MAX_OFDM

#define DEF_TX0_CW_MAX_CCK       CW_MAX_CCK
#define DEF_TX1_CW_MAX_CCK       CW_MAX_CCK
#define DEF_TX2_CW_MAX_CCK       CW_MAX_CCK
#define DEF_TX3_CW_MAX_CCK       CW_MAX_CCK

#define DEF_TX0_AIFS            0
#define DEF_TX1_AIFS            0
#define DEF_TX2_AIFS            0
#define DEF_TX3_AIFS            0

#define DEF_TX0_ACM             0
#define DEF_TX1_ACM             0
#define DEF_TX2_ACM             0
#define DEF_TX3_ACM             0

#define DEF_TX0_TXOP_LIMIT_CCK        0
#define DEF_TX1_TXOP_LIMIT_CCK        0
#define DEF_TX2_TXOP_LIMIT_CCK        0
#define DEF_TX3_TXOP_LIMIT_CCK        0

#define DEF_TX0_TXOP_LIMIT_OFDM       0
#define DEF_TX1_TXOP_LIMIT_OFDM       0
#define DEF_TX2_TXOP_LIMIT_OFDM       0
#define DEF_TX3_TXOP_LIMIT_OFDM       0

#define QOS_QOS_SETS                  3
#define QOS_PARAM_SET_ACTIVE          0
#define QOS_PARAM_SET_DEF_CCK         1
#define QOS_PARAM_SET_DEF_OFDM        2

#define CTRL_QOS_NO_ACK               (0x0020)

#define IPW_TX_QUEUE_1        1
#define IPW_TX_QUEUE_2        2
#define IPW_TX_QUEUE_3        3
#define IPW_TX_QUEUE_4        4

/* QoS sturctures */
struct ipw_qos_info {
	int qos_enable;
	struct ieee80211_qos_parameters *def_qos_parm_OFDM;
	struct ieee80211_qos_parameters *def_qos_parm_CCK;
	u32 burst_duration_CCK;
	u32 burst_duration_OFDM;
	u16 qos_no_ack_mask;
	int burst_enable;
};

/**************************************************************/
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/**
 * Generic queue structure
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 *
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 * Contains common data for Rx and Tx queues
 */
struct clx2_queue {
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	int n_bd;		       /**< number of BDs in this queue */
	int first_empty;	       /**< 1-st empty entry (index) */
	int last_used;		       /**< last used entry (index) */
	u32 reg_w;		     /**< 'write' reg (queue head), addr in domain 1 */
	u32 reg_r;		     /**< 'read' reg (queue tail), addr in domain 1 */
	dma_addr_t dma_addr;		/**< physical addr for BD's */
	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 */
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} __attribute__ ((packed));

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struct machdr32 {
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	u16 frame_ctl;
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	u16 duration;		// watch out for endians!
	u8 addr1[MACADRR_BYTE_LEN];
	u8 addr2[MACADRR_BYTE_LEN];
	u8 addr3[MACADRR_BYTE_LEN];
	u16 seq_ctrl;		// more endians!
	u8 addr4[MACADRR_BYTE_LEN];
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	u16 qos_ctrl;
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} __attribute__ ((packed));
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struct machdr30 {
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	u16 frame_ctl;
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	u16 duration;		// watch out for endians!
	u8 addr1[MACADRR_BYTE_LEN];
	u8 addr2[MACADRR_BYTE_LEN];
	u8 addr3[MACADRR_BYTE_LEN];
	u16 seq_ctrl;		// more endians!
	u8 addr4[MACADRR_BYTE_LEN];
} __attribute__ ((packed));

struct machdr26 {
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	u16 frame_ctl;
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	u16 duration;		// watch out for endians!
	u8 addr1[MACADRR_BYTE_LEN];
	u8 addr2[MACADRR_BYTE_LEN];
	u8 addr3[MACADRR_BYTE_LEN];
	u16 seq_ctrl;		// more endians!
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	u16 qos_ctrl;
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} __attribute__ ((packed));
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struct machdr24 {
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	u16 frame_ctl;
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	u16 duration;		// watch out for endians!
	u8 addr1[MACADRR_BYTE_LEN];
	u8 addr2[MACADRR_BYTE_LEN];
	u8 addr3[MACADRR_BYTE_LEN];
	u16 seq_ctrl;		// more endians!
} __attribute__ ((packed));
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// TX TFD with 32 byte MAC Header
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struct tx_tfd_32 {
	struct machdr32 mchdr;	// 32
	u32 uivplaceholder[2];	// 8
} __attribute__ ((packed));
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// TX TFD with 30 byte MAC Header
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struct tx_tfd_30 {
	struct machdr30 mchdr;	// 30
	u8 reserved[2];		// 2
	u32 uivplaceholder[2];	// 8
} __attribute__ ((packed));
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// tx tfd with 26 byte mac header
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struct tx_tfd_26 {
	struct machdr26 mchdr;	// 26
	u8 reserved1[2];	// 2
	u32 uivplaceholder[2];	// 8
	u8 reserved2[4];	// 4
} __attribute__ ((packed));
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// tx tfd with 24 byte mac header
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struct tx_tfd_24 {
	struct machdr24 mchdr;	// 24
	u32 uivplaceholder[2];	// 8
	u8 reserved[8];		// 8
} __attribute__ ((packed));
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#define DCT_WEP_KEY_FIELD_LENGTH 16

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struct tfd_command {
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	u8 index;
	u8 length;
	u16 reserved;
	u8 payload[0];
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} __attribute__ ((packed));
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struct tfd_data {
	/* Header */
	u32 work_area_ptr;
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	u8 station_number;	/* 0 for BSS */
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	u8 reserved1;
	u16 reserved2;

	/* Tx Parameters */
	u8 cmd_id;
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	u8 seq_num;
	u16 len;
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	u8 priority;
	u8 tx_flags;
	u8 tx_flags_ext;
	u8 key_index;
	u8 wepkey[DCT_WEP_KEY_FIELD_LENGTH];
	u8 rate;
	u8 antenna;
	u16 next_packet_duration;
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	u16 next_frag_len;
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	u16 back_off_counter;	//////txop;
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	u8 retrylimit;
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	u16 cwcurrent;
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	u8 reserved3;

	/* 802.11 MAC Header */
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	union {
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		struct tx_tfd_24 tfd_24;
		struct tx_tfd_26 tfd_26;
		struct tx_tfd_30 tfd_30;
		struct tx_tfd_32 tfd_32;
	} tfd;

	/* Payload DMA info */
	u32 num_chunks;
	u32 chunk_ptr[NUM_TFD_CHUNKS];
	u16 chunk_len[NUM_TFD_CHUNKS];
} __attribute__ ((packed));

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struct txrx_control_flags {
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	u8 message_type;
	u8 rx_seq_num;
	u8 control_bits;
	u8 reserved;
} __attribute__ ((packed));

#define  TFD_SIZE                           128
#define  TFD_CMD_IMMEDIATE_PAYLOAD_LENGTH   (TFD_SIZE - sizeof(struct txrx_control_flags))

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struct tfd_frame {
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	struct txrx_control_flags control_flags;
	union {
		struct tfd_data data;
		struct tfd_command cmd;
		u8 raw[TFD_CMD_IMMEDIATE_PAYLOAD_LENGTH];
	} u;
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} __attribute__ ((packed));
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typedef void destructor_func(const void *);
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/**
 * Tx Queue for DMA. Queue consists of circular buffer of
 * BD's and required locking structures.
 */
struct clx2_tx_queue {
	struct clx2_queue q;
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	struct tfd_frame *bd;
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	struct ieee80211_txb **txb;
};

/*
 * RX related structures and functions
 */
#define RX_FREE_BUFFERS 32
#define RX_LOW_WATERMARK 8

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#define SUP_RATE_11A_MAX_NUM_CHANNELS  8
#define SUP_RATE_11B_MAX_NUM_CHANNELS  4
#define SUP_RATE_11G_MAX_NUM_CHANNELS  12
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// Used for passing to driver number of successes and failures per rate
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struct rate_histogram {
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	union {
		u32 a[SUP_RATE_11A_MAX_NUM_CHANNELS];
		u32 b[SUP_RATE_11B_MAX_NUM_CHANNELS];
		u32 g[SUP_RATE_11G_MAX_NUM_CHANNELS];
	} success;
	union {
		u32 a[SUP_RATE_11A_MAX_NUM_CHANNELS];
		u32 b[SUP_RATE_11B_MAX_NUM_CHANNELS];
		u32 g[SUP_RATE_11G_MAX_NUM_CHANNELS];
	} failed;
} __attribute__ ((packed));

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/* statistics command response */
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struct ipw_cmd_stats {
	u8 cmd_id;
	u8 seq_num;
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	u16 good_sfd;
	u16 bad_plcp;
	u16 wrong_bssid;
	u16 valid_mpdu;
	u16 bad_mac_header;
	u16 reserved_frame_types;
	u16 rx_ina;
	u16 bad_crc32;
	u16 invalid_cts;
	u16 invalid_acks;
	u16 long_distance_ina_fina;
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	u16 dsp_silence_unreachable;
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	u16 accumulated_rssi;
	u16 rx_ovfl_frame_tossed;
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	u16 rssi_silence_threshold;
	u16 rx_ovfl_frame_supplied;
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	u16 last_rx_frame_signal;
	u16 last_rx_frame_noise;
	u16 rx_autodetec_no_ofdm;
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	u16 rx_autodetec_no_barker;
	u16 reserved;
} __attribute__ ((packed));

struct notif_channel_result {
	u8 channel_num;
	struct ipw_cmd_stats stats;
	u8 uReserved;
} __attribute__ ((packed));

struct notif_scan_complete {
	u8 scan_type;
	u8 num_channels;
	u8 status;
	u8 reserved;
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} __attribute__ ((packed));
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struct notif_frag_length {
	u16 frag_length;
	u16 reserved;
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} __attribute__ ((packed));
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struct notif_beacon_state {
	u32 state;
	u32 number;
} __attribute__ ((packed));

struct notif_tgi_tx_key {
	u8 key_state;
	u8 security_type;
	u8 station_index;
	u8 reserved;
} __attribute__ ((packed));

struct notif_link_deterioration {
	struct ipw_cmd_stats stats;
	u8 rate;
	u8 modulation;
	struct rate_histogram histogram;
	u8 reserved1;
	u16 reserved2;
} __attribute__ ((packed));

struct notif_association {
	u8 state;
} __attribute__ ((packed));

struct notif_authenticate {
	u8 state;
	struct machdr24 addr;
	u16 status;
} __attribute__ ((packed));

struct notif_calibration {
	u8 data[104];
} __attribute__ ((packed));

struct notif_noise {
	u32 value;
} __attribute__ ((packed));

struct ipw_rx_notification {
	u8 reserved[8];
	u8 subtype;
	u8 flags;
	u16 size;
	union {
		struct notif_association assoc;
		struct notif_authenticate auth;
		struct notif_channel_result channel_result;
		struct notif_scan_complete scan_complete;
		struct notif_frag_length frag_len;
		struct notif_beacon_state beacon_state;
		struct notif_tgi_tx_key tgi_tx_key;
		struct notif_link_deterioration link_deterioration;
		struct notif_calibration calibration;
		struct notif_noise noise;
		u8 raw[0];
	} u;
} __attribute__ ((packed));

struct ipw_rx_frame {
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	u32 reserved1;
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	u8 parent_tsf[4];	// fw_use[0] is boolean for OUR_TSF_IS_GREATER
	u8 received_channel;	// The channel that this frame was received on.
	// Note that for .11b this does not have to be
	// the same as the channel that it was sent.
	// Filled by LMAC
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	u8 frameStatus;
	u8 rate;
	u8 rssi;
	u8 agc;
	u8 rssi_dbm;
	u16 signal;
	u16 noise;
	u8 antennaAndPhy;
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	u8 control;		// control bit should be on in bg
	u8 rtscts_rate;		// rate of rts or cts (in rts cts sequence rate
	// is identical)
	u8 rtscts_seen;		// 0x1 RTS seen ; 0x2 CTS seen
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	u16 length;
	u8 data[0];
} __attribute__ ((packed));
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struct ipw_rx_header {
	u8 message_type;
	u8 rx_seq_num;
	u8 control_bits;
	u8 reserved;
} __attribute__ ((packed));

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struct ipw_rx_packet {
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	struct ipw_rx_header header;
	union {
		struct ipw_rx_frame frame;
		struct ipw_rx_notification notification;
	} u;
} __attribute__ ((packed));

#define IPW_RX_NOTIFICATION_SIZE sizeof(struct ipw_rx_header) + 12
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#define IPW_RX_FRAME_SIZE        (unsigned int)(sizeof(struct ipw_rx_header) + \
                                 sizeof(struct ipw_rx_frame))
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struct ipw_rx_mem_buffer {
	dma_addr_t dma_addr;
	struct ipw_rx_buffer *rxb;
	struct sk_buff *skb;
	struct list_head list;
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};				/* Not transferred over network, so not  __attribute__ ((packed)) */
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struct ipw_rx_queue {
	struct ipw_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
	struct ipw_rx_mem_buffer *queue[RX_QUEUE_SIZE];
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	u32 processed;		/* Internal index to last handled Rx packet */
	u32 read;		/* Shared index to newest available Rx buffer */
	u32 write;		/* Shared index to oldest written Rx packet */
	u32 free_count;		/* Number of pre-allocated buffers in rx_free */
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	/* Each of these lists is used as a FIFO for ipw_rx_mem_buffers */
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	struct list_head rx_free;	/* Own an SKBs */
	struct list_head rx_used;	/* No SKB allocated */
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	spinlock_t lock;
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};				/* Not transferred over network, so not  __attribute__ ((packed)) */
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struct alive_command_responce {
	u8 alive_command;
	u8 sequence_number;
	u16 software_revision;
	u8 device_identifier;
	u8 reserved1[5];
	u16 reserved2;
	u16 reserved3;
	u16 clock_settle_time;
	u16 powerup_settle_time;
	u16 reserved4;
	u8 time_stamp[5];	/* month, day, year, hours, minutes */
	u8 ucode_valid;
} __attribute__ ((packed));

#define IPW_MAX_RATES 12

struct ipw_rates {
	u8 num_rates;
	u8 rates[IPW_MAX_RATES];
} __attribute__ ((packed));

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struct command_block {
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	unsigned int control;
	u32 source_addr;
	u32 dest_addr;
	unsigned int status;
} __attribute__ ((packed));

#define CB_NUMBER_OF_ELEMENTS_SMALL 64
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struct fw_image_desc {
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	unsigned long last_cb_index;
	unsigned long current_cb_index;
	struct command_block cb_list[CB_NUMBER_OF_ELEMENTS_SMALL];
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	void *v_addr;
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	unsigned long p_addr;
	unsigned long len;
};

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struct ipw_sys_config {
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	u8 bt_coexistence;
	u8 reserved1;
	u8 answer_broadcast_ssid_probe;
	u8 accept_all_data_frames;
	u8 accept_non_directed_frames;
	u8 exclude_unicast_unencrypted;
	u8 disable_unicast_decryption;
	u8 exclude_multicast_unencrypted;
	u8 disable_multicast_decryption;
	u8 antenna_diversity;
	u8 pass_crc_to_host;
	u8 dot11g_auto_detection;
	u8 enable_cts_to_self;
	u8 enable_multicast_filtering;
	u8 bt_coexist_collision_thr;
	u8 reserved2;
	u8 accept_all_mgmt_bcpr;
	u8 accept_all_mgtm_frames;
	u8 pass_noise_stats_to_host;
	u8 reserved3;
} __attribute__ ((packed));

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struct ipw_multicast_addr {
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	u8 num_of_multicast_addresses;
	u8 reserved[3];
	u8 mac1[6];
	u8 mac2[6];
	u8 mac3[6];
	u8 mac4[6];
} __attribute__ ((packed));

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#define DCW_WEP_KEY_INDEX_MASK		0x03	/* bits [0:1] */
#define DCW_WEP_KEY_SEC_TYPE_MASK	0x30	/* bits [4:5] */

#define DCW_WEP_KEY_SEC_TYPE_WEP	0x00
#define DCW_WEP_KEY_SEC_TYPE_CCM	0x20
#define DCW_WEP_KEY_SEC_TYPE_TKIP	0x30

#define DCW_WEP_KEY_INVALID_SIZE	0x00	/* 0 = Invalid key */
#define DCW_WEP_KEY64Bit_SIZE		0x05	/* 64-bit encryption */
#define DCW_WEP_KEY128Bit_SIZE		0x0D	/* 128-bit encryption */
#define DCW_CCM_KEY128Bit_SIZE		0x10	/* 128-bit key */
//#define DCW_WEP_KEY128BitIV_SIZE      0x10    /* 128-bit key and 128-bit IV */

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struct ipw_wep_key {
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	u8 cmd_id;
	u8 seq_num;
	u8 key_index;
	u8 key_size;
	u8 key[16];
} __attribute__ ((packed));

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struct ipw_tgi_tx_key {
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	u8 key_id;
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	u8 security_type;
	u8 station_index;
	u8 flags;
	u8 key[16];
	u32 tx_counter[2];
} __attribute__ ((packed));

#define IPW_SCAN_CHANNELS 54

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struct ipw_scan_request {
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	u8 scan_type;
	u16 dwell_time;
	u8 channels_list[IPW_SCAN_CHANNELS];
	u8 channels_reserved[3];
} __attribute__ ((packed));

enum {
	IPW_SCAN_PASSIVE_TILL_FIRST_BEACON_SCAN = 0,
	IPW_SCAN_PASSIVE_FULL_DWELL_SCAN,
	IPW_SCAN_ACTIVE_DIRECT_SCAN,
	IPW_SCAN_ACTIVE_BROADCAST_SCAN,
	IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN,
	IPW_SCAN_TYPES
};

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struct ipw_scan_request_ext {
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	u32 full_scan_index;
	u8 channels_list[IPW_SCAN_CHANNELS];
	u8 scan_type[IPW_SCAN_CHANNELS / 2];
	u8 reserved;
	u16 dwell_time[IPW_SCAN_TYPES];
} __attribute__ ((packed));

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extern inline u8 ipw_get_scan_type(struct ipw_scan_request_ext *scan, u8 index)
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{
	if (index % 2)
		return scan->scan_type[index / 2] & 0x0F;
	else
		return (scan->scan_type[index / 2] & 0xF0) >> 4;
}

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extern inline void ipw_set_scan_type(struct ipw_scan_request_ext *scan,
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				     u8 index, u8 scan_type)
{
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	if (index % 2)
		scan->scan_type[index / 2] =
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		    (scan->scan_type[index / 2] & 0xF0) | (scan_type & 0x0F);
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	else
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		scan->scan_type[index / 2] =
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		    (scan->scan_type[index / 2] & 0x0F) |
		    ((scan_type & 0x0F) << 4);
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}

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struct ipw_associate {
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	u8 channel;
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	u8 auth_type:4, auth_key:4;
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	u8 assoc_type;
	u8 reserved;
	u16 policy_support;
	u8 preamble_length;
	u8 ieee_mode;
	u8 bssid[ETH_ALEN];
	u32 assoc_tsf_msw;
	u32 assoc_tsf_lsw;
	u16 capability;
	u16 listen_interval;
	u16 beacon_interval;
	u8 dest[ETH_ALEN];
	u16 atim_window;
	u8 smr;
	u8 reserved1;
	u16 reserved2;
} __attribute__ ((packed));

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struct ipw_supported_rates {
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	u8 ieee_mode;
	u8 num_rates;
	u8 purpose;
	u8 reserved;
	u8 supported_rates[IPW_MAX_RATES];
} __attribute__ ((packed));

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struct ipw_rts_threshold {
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	u16 rts_threshold;
	u16 reserved;
} __attribute__ ((packed));

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struct ipw_frag_threshold {
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	u16 frag_threshold;
	u16 reserved;
} __attribute__ ((packed));

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struct ipw_retry_limit {
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	u8 short_retry_limit;
	u8 long_retry_limit;
	u16 reserved;
} __attribute__ ((packed));

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struct ipw_dino_config {
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	u32 dino_config_addr;
	u16 dino_config_size;
	u8 dino_response;
	u8 reserved;
} __attribute__ ((packed));

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struct ipw_aironet_info {
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	u8 id;
	u8 length;
	u16 reserved;
} __attribute__ ((packed));

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struct ipw_rx_key {
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	u8 station_index;
	u8 key_type;
	u8 key_id;
	u8 key_flag;
	u8 key[16];
	u8 station_address[6];
	u8 key_index;
	u8 reserved;
} __attribute__ ((packed));

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struct ipw_country_channel_info {
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	u8 first_channel;
	u8 no_channels;
	s8 max_tx_power;
} __attribute__ ((packed));

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struct ipw_country_info {
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	u8 id;
	u8 length;
	u8 country_str[3];
	struct ipw_country_channel_info groups[7];
} __attribute__ ((packed));

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struct ipw_channel_tx_power {
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	u8 channel_number;
	s8 tx_power;
} __attribute__ ((packed));

#define SCAN_ASSOCIATED_INTERVAL (HZ)
#define SCAN_INTERVAL (HZ / 10)
#define MAX_A_CHANNELS  37
#define MAX_B_CHANNELS  14

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struct ipw_tx_power {
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	u8 num_channels;
	u8 ieee_mode;
	struct ipw_channel_tx_power channels_tx_power[MAX_A_CHANNELS];
} __attribute__ ((packed));

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struct ipw_rsn_capabilities {
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	u8 id;
	u8 length;
	u16 version;
} __attribute__ ((packed));

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struct ipw_sensitivity_calib {
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	u16 beacon_rssi_raw;
	u16 reserved;
} __attribute__ ((packed));

/**
 * Host command structure.
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 *
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 * On input, the following fields should be filled:
 * - cmd
 * - len
 * - status_len
 * - param (if needed)
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 *
 * On output,
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 * - \a status contains status;
 * - \a param filled with status parameters.
 */
struct ipw_cmd {
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	u32 cmd;   /**< Host command */
	u32 status;/**< Status */
	u32 status_len;
		   /**< How many 32 bit parameters in the status */
	u32 len;   /**< incoming parameters length, bytes */
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  /**
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   * command parameters.
   * There should be enough space for incoming and
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   * outcoming parameters.
   * Incoming parameters listed 1-st, followed by outcoming params.
   * nParams=(len+3)/4+status_len
   */
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	u32 param[0];
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} __attribute__ ((packed));

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#define STATUS_HCMD_ACTIVE      (1<<0)	/**< host command in progress */
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#define STATUS_INT_ENABLED      (1<<1)
#define STATUS_RF_KILL_HW       (1<<2)
#define STATUS_RF_KILL_SW       (1<<3)
#define STATUS_RF_KILL_MASK     (STATUS_RF_KILL_HW | STATUS_RF_KILL_SW)

#define STATUS_INIT             (1<<5)
#define STATUS_AUTH             (1<<6)
#define STATUS_ASSOCIATED       (1<<7)
#define STATUS_STATE_MASK       (STATUS_INIT | STATUS_AUTH | STATUS_ASSOCIATED)

#define STATUS_ASSOCIATING      (1<<8)
#define STATUS_DISASSOCIATING   (1<<9)
#define STATUS_ROAMING          (1<<10)
#define STATUS_EXIT_PENDING     (1<<11)
#define STATUS_DISASSOC_PENDING (1<<12)
#define STATUS_STATE_PENDING    (1<<13)

#define STATUS_SCAN_PENDING     (1<<20)
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#define STATUS_SCANNING         (1<<21)
#define STATUS_SCAN_ABORTING    (1<<22)
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#define STATUS_SCAN_FORCED      (1<<23)
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#define STATUS_LED_LINK_ON      (1<<24)
#define STATUS_LED_ACT_ON       (1<<25)

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#define STATUS_INDIRECT_BYTE    (1<<28)	/* sysfs entry configured for access */
#define STATUS_INDIRECT_DWORD   (1<<29)	/* sysfs entry configured for access */
#define STATUS_DIRECT_DWORD     (1<<30)	/* sysfs entry configured for access */
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#define STATUS_SECURITY_UPDATED (1<<31)	/* Security sync needed */
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#define CFG_STATIC_CHANNEL      (1<<0)	/* Restrict assoc. to single channel */
#define CFG_STATIC_ESSID        (1<<1)	/* Restrict assoc. to single SSID */
#define CFG_STATIC_BSSID        (1<<2)	/* Restrict assoc. to single BSSID */
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#define CFG_CUSTOM_MAC          (1<<3)
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#define CFG_PREAMBLE_LONG       (1<<4)
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#define CFG_ADHOC_PERSIST       (1<<5)
#define CFG_ASSOCIATE           (1<<6)
#define CFG_FIXED_RATE          (1<<7)
#define CFG_ADHOC_CREATE        (1<<8)
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#define CFG_NO_LED              (1<<9)
#define CFG_BACKGROUND_SCAN     (1<<10)
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#define CFG_SPEED_SCAN          (1<<11)
#define CFG_NET_STATS           (1<<12)
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#define CAP_SHARED_KEY          (1<<0)	/* Off = OPEN */
#define CAP_PRIVACY_ON          (1<<1)	/* Off = No privacy */
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#define MAX_STATIONS            32
#define IPW_INVALID_STATION     (0xff)

struct ipw_station_entry {
	u8 mac_addr[ETH_ALEN];
	u8 reserved;
	u8 support_mode;
};

#define AVG_ENTRIES 8
struct average {
	s16 entries[AVG_ENTRIES];
	u8 pos;
	u8 init;
	s32 sum;
};

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#define MAX_SPEED_SCAN 100
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#define IPW_IBSS_MAC_HASH_SIZE 31

struct ipw_ibss_seq {
	u8 mac[ETH_ALEN];
	u16 seq_num;
	u16 frag_num;
	unsigned long packet_time;
	struct list_head list;
};
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struct ipw_error_elem {
	u32 desc;
	u32 time;
	u32 blink1;
	u32 blink2;
	u32 link1;
	u32 link2;
	u32 data;
};

struct ipw_event {
	u32 event;
	u32 time;
	u32 data;
} __attribute__ ((packed));

struct ipw_fw_error {
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	unsigned long jiffies;
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	u32 status;
	u32 config;
	u32 elem_len;
	u32 log_len;
	struct ipw_error_elem *elem;
	struct ipw_event *log;
	u8 payload[0];
} __attribute__ ((packed));

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struct ipw_priv {
	/* ieee device used by generic ieee processing code */
	struct ieee80211_device *ieee;

	spinlock_t lock;
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	struct semaphore sem;
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	/* basic pci-network driver stuff */
	struct pci_dev *pci_dev;
	struct net_device *net_dev;

	/* pci hardware address support */
	void __iomem *hw_base;
	unsigned long hw_len;
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	struct fw_image_desc sram_desc;

	/* result of ucode download */
	struct alive_command_responce dino_alive;

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	wait_queue_head_t wait_command_queue;
	wait_queue_head_t wait_state;
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	/* Rx and Tx DMA processing queues */
	struct ipw_rx_queue *rxq;
	struct clx2_tx_queue txq_cmd;
	struct clx2_tx_queue txq[4];
	u32 status;
	u32 config;
	u32 capability;

	u8 last_rx_rssi;
	u8 last_noise;
	struct average average_missed_beacons;
	struct average average_rssi;
	struct average average_noise;
	u32 port_type;
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	int rx_bufs_min;	  /**< minimum number of bufs in Rx queue */
	int rx_pend_max;	  /**< maximum pending buffers for one IRQ */
	u32 hcmd_seq;		  /**< sequence number for hcmd */
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	u32 disassociate_threshold;
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	u32 roaming_threshold;
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	struct ipw_associate assoc_request;
	struct ieee80211_network *assoc_network;

	unsigned long ts_scan_abort;
	struct ipw_supported_rates rates;
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	struct ipw_rates phy[3];	   /**< PHY restrictions, per band */
	struct ipw_rates supp;		   /**< software defined */
	struct ipw_rates extended;	   /**< use for corresp. IE, AP only */
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	struct notif_link_deterioration last_link_deterioration; /** for statistics */
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	struct ipw_cmd *hcmd; /**< host command currently executed */
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	wait_queue_head_t hcmd_wq;     /**< host command waits for execution */
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	u32 tsf_bcn[2];		     /**< TSF from latest beacon */
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	struct notif_calibration calib;	/**< last calibration */
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	/* ordinal interface with firmware */
	u32 table0_addr;
	u32 table0_len;
	u32 table1_addr;
	u32 table1_len;
	u32 table2_addr;
	u32 table2_len;

	/* context information */
	u8 essid[IW_ESSID_MAX_SIZE];
	u8 essid_len;
	u8 nick[IW_ESSID_MAX_SIZE];
	u16 rates_mask;
	u8 channel;
	struct ipw_sys_config sys_config;
	u32 power_mode;
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	u8 bssid[ETH_ALEN];
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	u16 rts_threshold;
	u8 mac_addr[ETH_ALEN];
	u8 num_stations;
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	u8 stations[MAX_STATIONS][ETH_ALEN];
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	u8 short_retry_limit;
	u8 long_retry_limit;
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	u32 notif_missed_beacons;

	/* Statistics and counters normalized with each association */
	u32 last_missed_beacons;
	u32 last_tx_packets;
	u32 last_rx_packets;
	u32 last_tx_failures;
	u32 last_rx_err;
	u32 last_rate;

	u32 missed_adhoc_beacons;
	u32 missed_beacons;
	u32 rx_packets;
	u32 tx_packets;
	u32 quality;

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	u8 speed_scan[MAX_SPEED_SCAN];
	u8 speed_scan_pos;

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	u16 last_seq_num;
	u16 last_frag_num;
	unsigned long last_packet_time;
	struct list_head ibss_mac_hash[IPW_IBSS_MAC_HASH_SIZE];

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	/* eeprom */
	u8 eeprom[0x100];	/* 256 bytes of eeprom */
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	u8 country[4];
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	int eeprom_delay;

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	struct iw_statistics wstats;
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	struct iw_public_data wireless_data;

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	struct workqueue_struct *workqueue;
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	struct work_struct adhoc_check;
	struct work_struct associate;
	struct work_struct disassociate;
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	struct work_struct system_config;
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	struct work_struct rx_replenish;
	struct work_struct request_scan;
	struct work_struct adapter_restart;
	struct work_struct rf_kill;
	struct work_struct up;
	struct work_struct down;
	struct work_struct gather_stats;
	struct work_struct abort_scan;
	struct work_struct roam;
	struct work_struct scan_check;
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	struct work_struct link_up;
	struct work_struct link_down;
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	struct tasklet_struct irq_tasklet;

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	/* LED related variables and work_struct */
	u8 nic_type;
	u32 led_activity_on;
	u32 led_activity_off;
	u32 led_association_on;
	u32 led_association_off;
	u32 led_ofdm_on;
	u32 led_ofdm_off;

	struct work_struct led_link_on;
	struct work_struct led_link_off;
	struct work_struct led_act_off;
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	struct work_struct merge_networks;
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	struct ipw_cmd_log *cmdlog;
	int cmdlog_len;
	int cmdlog_pos;

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#define IPW_2200BG  1
#define IPW_2915ABG 2
	u8 adapter;

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	s8 tx_power;
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#ifdef CONFIG_PM
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	u32 pm_state[16];
#endif

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	struct ipw_fw_error *error;

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	/* network state */

	/* Used to pass the current INTA value from ISR to Tasklet */
	u32 isr_inta;

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	/* QoS */
	struct ipw_qos_info qos_data;
	struct work_struct qos_activate;
	/*********************************/

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	/* debugging info */
	u32 indirect_dword;
	u32 direct_dword;
	u32 indirect_byte;
};				/*ipw_priv */

/* debug macros */

#ifdef CONFIG_IPW_DEBUG
#define IPW_DEBUG(level, fmt, args...) \
do { if (ipw_debug_level & (level)) \
  printk(KERN_DEBUG DRV_NAME": %c %s " fmt, \
         in_interrupt() ? 'I' : 'U', __FUNCTION__ , ## args); } while (0)
#else
#define IPW_DEBUG(level, fmt, args...) do {} while (0)
#endif				/* CONFIG_IPW_DEBUG */

/*
 * To use the debug system;
 *
 * If you are defining a new debug classification, simply add it to the #define
 * list here in the form of:
 *
 * #define IPW_DL_xxxx VALUE
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 *
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 * shifting value to the left one bit from the previous entry.  xxxx should be
 * the name of the classification (for example, WEP)
 *
 * You then need to either add a IPW_xxxx_DEBUG() macro definition for your
 * classification, or use IPW_DEBUG(IPW_DL_xxxx, ...) whenever you want
 * to send output to that classification.
 *
 * To add your debug level to the list of levels seen when you perform
 *
 * % cat /proc/net/ipw/debug_level
 *
 * you simply need to add your entry to the ipw_debug_levels array.
 *
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 * If you do not see debug_level in /proc/net/ipw then you do not