drivers/net/wireless/at76c50x-usb.h - arm/linux - Git at Google


            
            /*

            
             * Copyright (c) 2002,2003 Oliver Kurth

            
             *	     (c) 2003,2004 Joerg Albert <joerg.albert@gmx.de>

            
             *	     (c) 2007 Guido Guenther <agx@sigxcpu.org>

            
             *

            
             * This program is free software; you can redistribute it and/or

            
             * modify it under the terms of the GNU General Public License as

            
             * published by the Free Software Foundation; either version 2 of

            
             * the License, or (at your option) any later version.

            
             *

            
             * This driver was based on information from the Sourceforge driver

            
             * released and maintained by Atmel:

            
             *

            
             *  http://sourceforge.net/projects/atmelwlandriver/

            
             *

            
             * Although the code was completely re-written,

            
             * it would have been impossible without Atmel's decision to

            
             * release an Open Source driver (unfortunately the firmware was

            
             * kept binary only). Thanks for that decision to Atmel!

            
             */


            #ifndef _AT76_USB_H

            
            #define _AT76_USB_H


            /* Board types */

            
            enum board_type {

            
            	BOARD_503_ISL3861 = 1,

            
            	BOARD_503_ISL3863 = 2,

            
            	BOARD_503 = 3,

            
            	BOARD_503_ACC = 4,

            
            	BOARD_505 = 5,

            
            	BOARD_505_2958 = 6,

            
            	BOARD_505A = 7,

            
            	BOARD_505AMX = 8

            
            };


            #define CMD_STATUS_IDLE				0x00

            
            #define CMD_STATUS_COMPLETE			0x01

            
            #define CMD_STATUS_UNKNOWN			0x02

            
            #define CMD_STATUS_INVALID_PARAMETER		0x03

            
            #define CMD_STATUS_FUNCTION_NOT_SUPPORTED	0x04

            
            #define CMD_STATUS_TIME_OUT			0x07

            
            #define CMD_STATUS_IN_PROGRESS			0x08

            
            #define CMD_STATUS_HOST_FAILURE			0xff

            
            #define CMD_STATUS_SCAN_FAILED			0xf0


            /* answers to get op mode */

            
            #define OPMODE_NONE				0x00

            
            #define OPMODE_NORMAL_NIC_WITH_FLASH		0x01

            
            #define OPMODE_HW_CONFIG_MODE			0x02

            
            #define OPMODE_DFU_MODE_WITH_FLASH		0x03

            
            #define OPMODE_NORMAL_NIC_WITHOUT_FLASH		0x04


            #define CMD_SET_MIB		0x01

            
            #define CMD_GET_MIB		0x02

            
            #define CMD_SCAN		0x03

            
            #define CMD_JOIN		0x04

            
            #define CMD_START_IBSS		0x05

            
            #define CMD_RADIO_ON		0x06

            
            #define CMD_RADIO_OFF		0x07

            
            #define CMD_STARTUP		0x0B


            #define MIB_LOCAL		0x01

            
            #define MIB_MAC_ADDR		0x02

            
            #define MIB_MAC			0x03

            
            #define MIB_MAC_MGMT		0x05

            
            #define MIB_MAC_WEP		0x06

            
            #define MIB_PHY			0x07

            
            #define MIB_FW_VERSION		0x08

            
            #define MIB_MDOMAIN		0x09


            #define ADHOC_MODE		1

            
            #define INFRASTRUCTURE_MODE	2


            /* values for struct mib_local, field preamble_type */

            
            #define PREAMBLE_TYPE_LONG	0

            
            #define PREAMBLE_TYPE_SHORT	1

            
            #define PREAMBLE_TYPE_AUTO	2


            /* values for tx_rate */

            
            #define TX_RATE_1MBIT		0

            
            #define TX_RATE_2MBIT		1

            
            #define TX_RATE_5_5MBIT 	2

            
            #define TX_RATE_11MBIT		3

            
            #define TX_RATE_AUTO		4


            /* power management modes */

            
            #define AT76_PM_OFF		1

            
            #define AT76_PM_ON		2

            
            #define AT76_PM_SMART		3


            struct hwcfg_r505 {

            
            	u8 cr39_values[14];

            
            	u8 reserved1[14];

            
            	u8 bb_cr[14];

            
            	u8 pidvid[4];

            
            	u8 mac_addr[ETH_ALEN];

            
            	u8 regulatory_domain;

            
            	u8 reserved2[14];

            
            	u8 cr15_values[14];

            
            	u8 reserved3[3];

            
            } __packed;


            struct hwcfg_rfmd {

            
            	u8 cr20_values[14];

            
            	u8 cr21_values[14];

            
            	u8 bb_cr[14];

            
            	u8 pidvid[4];

            
            	u8 mac_addr[ETH_ALEN];

            
            	u8 regulatory_domain;

            
            	u8 low_power_values[14];

            
            	u8 normal_power_values[14];

            
            	u8 reserved1[3];

            
            } __packed;


            struct hwcfg_intersil {

            
            	u8 mac_addr[ETH_ALEN];

            
            	u8 cr31_values[14];

            
            	u8 cr58_values[14];

            
            	u8 pidvid[4];

            
            	u8 regulatory_domain;

            
            	u8 reserved[1];

            
            } __packed;


            union at76_hwcfg {

            
            	struct hwcfg_intersil i;

            
            	struct hwcfg_rfmd r3;

            
            	struct hwcfg_r505 r5;

            
            };


            #define WEP_SMALL_KEY_LEN	(40 / 8)

            
            #define WEP_LARGE_KEY_LEN	(104 / 8)

            
            #define WEP_KEYS		(4)


            struct at76_card_config {

            
            	u8 exclude_unencrypted;

            
            	u8 promiscuous_mode;

            
            	u8 short_retry_limit;

            
            	u8 encryption_type;

            
            	__le16 rts_threshold;

            
            	__le16 fragmentation_threshold;	/* 256..2346 */

            
            	u8 basic_rate_set[4];

            
            	u8 auto_rate_fallback;	/* 0,1 */

            
            	u8 channel;

            
            	u8 privacy_invoked;

            
            	u8 wep_default_key_id;	/* 0..3 */

            
            	u8 current_ssid[32];

            
            	u8 wep_default_key_value[4][WEP_LARGE_KEY_LEN];

            
            	u8 ssid_len;

            
            	u8 short_preamble;

            
            	__le16 beacon_period;

            
            } __packed;


            struct at76_command {

            
            	u8 cmd;

            
            	u8 reserved;

            
            	__le16 size;

            
            	u8 data[0];

            
            } __packed;


            /* Length of Atmel-specific Rx header before 802.11 frame */

            
            #define AT76_RX_HDRLEN offsetof(struct at76_rx_buffer, packet)


            struct at76_rx_buffer {

            
            	__le16 wlength;

            
            	u8 rx_rate;

            
            	u8 newbss;

            
            	u8 fragmentation;

            
            	u8 rssi;

            
            	u8 link_quality;

            
            	u8 noise_level;

            
            	__le32 rx_time;

            
            	u8 packet[IEEE80211_MAX_FRAG_THRESHOLD];

            
            } __packed;


            /* Length of Atmel-specific Tx header before 802.11 frame */

            
            #define AT76_TX_HDRLEN offsetof(struct at76_tx_buffer, packet)


            struct at76_tx_buffer {

            
            	__le16 wlength;

            
            	u8 tx_rate;

            
            	u8 padding;

            
            	u8 reserved[4];

            
            	u8 packet[IEEE80211_MAX_FRAG_THRESHOLD];

            
            } __packed;


            /* defines for scan_type below */

            
            #define SCAN_TYPE_ACTIVE	0

            
            #define SCAN_TYPE_PASSIVE	1


            struct at76_req_scan {

            
            	u8 bssid[ETH_ALEN];

            
            	u8 essid[32];

            
            	u8 scan_type;

            
            	u8 channel;

            
            	__le16 probe_delay;

            
            	__le16 min_channel_time;

            
            	__le16 max_channel_time;

            
            	u8 essid_size;

            
            	u8 international_scan;

            
            } __packed;


            struct at76_req_ibss {

            
            	u8 bssid[ETH_ALEN];

            
            	u8 essid[32];

            
            	u8 bss_type;

            
            	u8 channel;

            
            	u8 essid_size;

            
            	u8 reserved[3];

            
            } __packed;


            struct at76_req_join {

            
            	u8 bssid[ETH_ALEN];

            
            	u8 essid[32];

            
            	u8 bss_type;

            
            	u8 channel;

            
            	__le16 timeout;

            
            	u8 essid_size;

            
            	u8 reserved;

            
            } __packed;


            struct mib_local {

            
            	u16 reserved0;

            
            	u8 beacon_enable;

            
            	u8 txautorate_fallback;

            
            	u8 reserved1;

            
            	u8 ssid_size;

            
            	u8 promiscuous_mode;

            
            	u16 reserved2;

            
            	u8 preamble_type;

            
            	u16 reserved3;

            
            } __packed;


            struct mib_mac_addr {

            
            	u8 mac_addr[ETH_ALEN];

            
            	u8 res[2];		/* ??? */

            
            	u8 group_addr[4][ETH_ALEN];

            
            	u8 group_addr_status[4];

            
            } __packed;


            struct mib_mac {

            
            	__le32 max_tx_msdu_lifetime;

            
            	__le32 max_rx_lifetime;

            
            	__le16 frag_threshold;

            
            	__le16 rts_threshold;

            
            	__le16 cwmin;

            
            	__le16 cwmax;

            
            	u8 short_retry_time;

            
            	u8 long_retry_time;

            
            	u8 scan_type;		/* active or passive */

            
            	u8 scan_channel;

            
            	__le16 probe_delay;	/* delay before ProbeReq in active scan, RO */

            
            	__le16 min_channel_time;

            
            	__le16 max_channel_time;

            
            	__le16 listen_interval;

            
            	u8 desired_ssid[32];

            
            	u8 desired_bssid[ETH_ALEN];

            
            	u8 desired_bsstype;	/* ad-hoc or infrastructure */

            
            	u8 reserved2;

            
            } __packed;


            struct mib_mac_mgmt {

            
            	__le16 beacon_period;

            
            	__le16 CFP_max_duration;

            
            	__le16 medium_occupancy_limit;

            
            	__le16 station_id;	/* assoc id */

            
            	__le16 ATIM_window;

            
            	u8 CFP_mode;

            
            	u8 privacy_option_implemented;

            
            	u8 DTIM_period;

            
            	u8 CFP_period;

            
            	u8 current_bssid[ETH_ALEN];

            
            	u8 current_essid[32];

            
            	u8 current_bss_type;

            
            	u8 power_mgmt_mode;

            
            	/* rfmd and 505 */

            
            	u8 ibss_change;

            
            	u8 res;

            
            	u8 multi_domain_capability_implemented;

            
            	u8 multi_domain_capability_enabled;

            
            	u8 country_string[IEEE80211_COUNTRY_STRING_LEN];

            
            	u8 reserved[3];

            
            } __packed;


            struct mib_mac_wep {

            
            	u8 privacy_invoked;	/* 0 disable encr., 1 enable encr */

            
            	u8 wep_default_key_id;

            
            	u8 wep_key_mapping_len;

            
            	u8 exclude_unencrypted;

            
            	__le32 wep_icv_error_count;

            
            	__le32 wep_excluded_count;

            
            	u8 wep_default_keyvalue[WEP_KEYS][WEP_LARGE_KEY_LEN];

            
            	u8 encryption_level;	/* 1 for 40bit, 2 for 104bit encryption */

            
            } __packed;


            struct mib_phy {

            
            	__le32 ed_threshold;


            	__le16 slot_time;

            
            	__le16 sifs_time;

            
            	__le16 preamble_length;

            
            	__le16 plcp_header_length;

            
            	__le16 mpdu_max_length;

            
            	__le16 cca_mode_supported;


            	u8 operation_rate_set[4];

            
            	u8 channel_id;

            
            	u8 current_cca_mode;

            
            	u8 phy_type;

            
            	u8 current_reg_domain;

            
            } __packed;


            struct mib_fw_version {

            
            	u8 major;

            
            	u8 minor;

            
            	u8 patch;

            
            	u8 build;

            
            } __packed;


            struct mib_mdomain {

            
            	u8 tx_powerlevel[14];

            
            	u8 channel_list[14];	/* 0 for invalid channels */

            
            } __packed;


            struct set_mib_buffer {

            
            	u8 type;

            
            	u8 size;

            
            	u8 index;

            
            	u8 reserved;

            
            	union {

            
            		u8 byte;

            
            		__le16 word;

            
            		u8 addr[ETH_ALEN];

            
            		struct mib_mac_wep wep_mib;

            
            	} data;

            
            } __packed;


            struct at76_fw_header {

            
            	__le32 crc;		/* CRC32 of the whole image */

            
            	__le32 board_type;	/* firmware compatibility code */

            
            	u8 build;		/* firmware build number */

            
            	u8 patch;		/* firmware patch level */

            
            	u8 minor;		/* firmware minor version */

            
            	u8 major;		/* firmware major version */

            
            	__le32 str_offset;	/* offset of the copyright string */

            
            	__le32 int_fw_offset;	/* internal firmware image offset */

            
            	__le32 int_fw_len;	/* internal firmware image length */

            
            	__le32 ext_fw_offset;	/* external firmware image offset */

            
            	__le32 ext_fw_len;	/* external firmware image length */

            
            } __packed;


            /* a description of a regulatory domain and the allowed channels */

            
            struct reg_domain {

            
            	u16 code;

            
            	char const *name;

            
            	u32 channel_map;	/* if bit N is set, channel (N+1) is allowed */

            
            };


            /* Data for one loaded firmware file */

            
            struct fwentry {

            
            	const char *const fwname;

            
            	const struct firmware *fw;

            
            	int extfw_size;

            
            	int intfw_size;

            
            	/* pointer to loaded firmware, no need to free */

            
            	u8 *extfw;		/* external firmware, extfw_size bytes long */

            
            	u8 *intfw;		/* internal firmware, intfw_size bytes long */

            
            	enum board_type board_type;	/* board type */

            
            	struct mib_fw_version fw_version;

            
            	int loaded;		/* Loaded and parsed successfully */

            
            };


            struct at76_priv {

            
            	struct usb_device *udev;	/* USB device pointer */


            	struct sk_buff *rx_skb;	/* skbuff for receiving data */

            
            	struct sk_buff *tx_skb;	/* skbuff for transmitting data */

            
            	void *bulk_out_buffer;	/* buffer for sending data */


            	struct urb *tx_urb;	/* URB for sending data */

            
            	struct urb *rx_urb;	/* URB for receiving data */


            	unsigned int tx_pipe;	/* bulk out pipe */

            
            	unsigned int rx_pipe;	/* bulk in pipe */


            	struct mutex mtx;	/* locks this structure */


            	/* work queues */

            
            	struct work_struct work_set_promisc;

            
            	struct work_struct work_submit_rx;

            
            	struct work_struct work_join_bssid;

            
            	struct delayed_work dwork_hw_scan;


            	struct tasklet_struct rx_tasklet;


            	/* the WEP stuff */

            
            	int wep_enabled;	/* 1 if WEP is enabled */

            
            	int wep_key_id;		/* key id to be used */

            
            	u8 wep_keys[WEP_KEYS][WEP_LARGE_KEY_LEN];	/* WEP keys */

            
            	u8 wep_keys_len[WEP_KEYS];	/* length of WEP keys */


            	int channel;

            
            	int iw_mode;

            
            	u8 bssid[ETH_ALEN];

            
            	u8 essid[IW_ESSID_MAX_SIZE];

            
            	int essid_size;

            
            	int radio_on;

            
            	int promisc;


            	int preamble_type;	/* 0 - long, 1 - short, 2 - auto */

            
            	int auth_mode;		/* authentication type: 0 open, 1 shared key */

            
            	int txrate;		/* 0,1,2,3 = 1,2,5.5,11 Mbps, 4 is auto */

            
            	int frag_threshold;	/* threshold for fragmentation of tx packets */

            
            	int rts_threshold;	/* threshold for RTS mechanism */

            
            	int short_retry_limit;


            	int scan_min_time;	/* scan min channel time */

            
            	int scan_max_time;	/* scan max channel time */

            
            	int scan_mode;		/* SCAN_TYPE_ACTIVE, SCAN_TYPE_PASSIVE */

            
            	int scan_need_any;	/* if set, need to scan for any ESSID */

            
            	bool scanning;		/* if set, the scan is running */


            	u16 assoc_id;		/* current association ID, if associated */


            	u8 pm_mode;		/* power management mode */

            
            	u32 pm_period;		/* power management period in microseconds */


            	struct reg_domain const *domain;	/* reg domain description */


            	/* These fields contain HW config provided by the device (not all of

            
            	 * these fields are used by all board types) */

            
            	u8 mac_addr[ETH_ALEN];

            
            	u8 regulatory_domain;


            	struct at76_card_config card_config;


            	enum board_type board_type;

            
            	struct mib_fw_version fw_version;


            	unsigned int device_unplugged:1;

            
            	unsigned int netdev_registered:1;

            
            	struct set_mib_buffer mib_buf;	/* global buffer for set_mib calls */


            	int beacon_period;	/* period of mgmt beacons, Kus */


            	struct ieee80211_hw *hw;

            
            	int mac80211_registered;

            
            };


            #define AT76_SUPPORTED_FILTERS 0


            #define SCAN_POLL_INTERVAL	(HZ / 4)


            #define CMD_COMPLETION_TIMEOUT	(5 * HZ)


            #define DEF_RTS_THRESHOLD	1536

            
            #define DEF_FRAG_THRESHOLD	1536

            
            #define DEF_SHORT_RETRY_LIMIT	8

            
            #define DEF_CHANNEL		10

            
            #define DEF_SCAN_MIN_TIME	10

            
            #define DEF_SCAN_MAX_TIME	120


            /* the max padding size for tx in bytes (see calc_padding) */

            
            #define MAX_PADDING_SIZE	53


            #endif				/* _AT76_USB_H */
	/*
	* Copyright (c) 2002,2003 Oliver Kurth
	* (c) 2003,2004 Joerg Albert <joerg.albert@gmx.de>
	* (c) 2007 Guido Guenther <agx@sigxcpu.org>
	*
	* This program is free software; you can redistribute it and/or
	* modify it under the terms of the GNU General Public License as
	* published by the Free Software Foundation; either version 2 of
	* the License, or (at your option) any later version.
	*
	* This driver was based on information from the Sourceforge driver
	* released and maintained by Atmel:
	*
	* http://sourceforge.net/projects/atmelwlandriver/
	*
	* Although the code was completely re-written,
	* it would have been impossible without Atmel's decision to
	* release an Open Source driver (unfortunately the firmware was
	* kept binary only). Thanks for that decision to Atmel!
	*/

	#ifndef _AT76_USB_H
	#define _AT76_USB_H

	/* Board types */
	enum board_type {
	BOARD_503_ISL3861 = 1,
	BOARD_503_ISL3863 = 2,
	BOARD_503 = 3,
	BOARD_503_ACC = 4,
	BOARD_505 = 5,
	BOARD_505_2958 = 6,
	BOARD_505A = 7,
	BOARD_505AMX = 8
	};

	#define CMD_STATUS_IDLE 0x00
	#define CMD_STATUS_COMPLETE 0x01
	#define CMD_STATUS_UNKNOWN 0x02
	#define CMD_STATUS_INVALID_PARAMETER 0x03
	#define CMD_STATUS_FUNCTION_NOT_SUPPORTED 0x04
	#define CMD_STATUS_TIME_OUT 0x07
	#define CMD_STATUS_IN_PROGRESS 0x08
	#define CMD_STATUS_HOST_FAILURE 0xff
	#define CMD_STATUS_SCAN_FAILED 0xf0

	/* answers to get op mode */
	#define OPMODE_NONE 0x00
	#define OPMODE_NORMAL_NIC_WITH_FLASH 0x01
	#define OPMODE_HW_CONFIG_MODE 0x02
	#define OPMODE_DFU_MODE_WITH_FLASH 0x03
	#define OPMODE_NORMAL_NIC_WITHOUT_FLASH 0x04

	#define CMD_SET_MIB 0x01
	#define CMD_GET_MIB 0x02
	#define CMD_SCAN 0x03
	#define CMD_JOIN 0x04
	#define CMD_START_IBSS 0x05
	#define CMD_RADIO_ON 0x06
	#define CMD_RADIO_OFF 0x07
	#define CMD_STARTUP 0x0B

	#define MIB_LOCAL 0x01
	#define MIB_MAC_ADDR 0x02
	#define MIB_MAC 0x03
	#define MIB_MAC_MGMT 0x05
	#define MIB_MAC_WEP 0x06
	#define MIB_PHY 0x07
	#define MIB_FW_VERSION 0x08
	#define MIB_MDOMAIN 0x09

	#define ADHOC_MODE 1
	#define INFRASTRUCTURE_MODE 2

	/* values for struct mib_local, field preamble_type */
	#define PREAMBLE_TYPE_LONG 0
	#define PREAMBLE_TYPE_SHORT 1
	#define PREAMBLE_TYPE_AUTO 2

	/* values for tx_rate */
	#define TX_RATE_1MBIT 0
	#define TX_RATE_2MBIT 1
	#define TX_RATE_5_5MBIT 2
	#define TX_RATE_11MBIT 3
	#define TX_RATE_AUTO 4

	/* power management modes */
	#define AT76_PM_OFF 1
	#define AT76_PM_ON 2
	#define AT76_PM_SMART 3

	struct hwcfg_r505 {
	u8 cr39_values[14];
	u8 reserved1[14];
	u8 bb_cr[14];
	u8 pidvid[4];
	u8 mac_addr[ETH_ALEN];
	u8 regulatory_domain;
	u8 reserved2[14];
	u8 cr15_values[14];
	u8 reserved3[3];
	} __packed;

	struct hwcfg_rfmd {
	u8 cr20_values[14];
	u8 cr21_values[14];
	u8 bb_cr[14];
	u8 pidvid[4];
	u8 mac_addr[ETH_ALEN];
	u8 regulatory_domain;
	u8 low_power_values[14];
	u8 normal_power_values[14];
	u8 reserved1[3];
	} __packed;

	struct hwcfg_intersil {
	u8 mac_addr[ETH_ALEN];
	u8 cr31_values[14];
	u8 cr58_values[14];
	u8 pidvid[4];
	u8 regulatory_domain;
	u8 reserved[1];
	} __packed;

	union at76_hwcfg {
	struct hwcfg_intersil i;
	struct hwcfg_rfmd r3;
	struct hwcfg_r505 r5;
	};

	#define WEP_SMALL_KEY_LEN (40 / 8)
	#define WEP_LARGE_KEY_LEN (104 / 8)
	#define WEP_KEYS (4)

	struct at76_card_config {
	u8 exclude_unencrypted;
	u8 promiscuous_mode;
	u8 short_retry_limit;
	u8 encryption_type;
	__le16 rts_threshold;
	__le16 fragmentation_threshold; /* 256..2346 */
	u8 basic_rate_set[4];
	u8 auto_rate_fallback; /* 0,1 */
	u8 channel;
	u8 privacy_invoked;
	u8 wep_default_key_id; /* 0..3 */
	u8 current_ssid[32];
	u8 wep_default_key_value[4][WEP_LARGE_KEY_LEN];
	u8 ssid_len;
	u8 short_preamble;
	__le16 beacon_period;
	} __packed;

	struct at76_command {
	u8 cmd;
	u8 reserved;
	__le16 size;
	u8 data[0];
	} __packed;

	/* Length of Atmel-specific Rx header before 802.11 frame */
	#define AT76_RX_HDRLEN offsetof(struct at76_rx_buffer, packet)

	struct at76_rx_buffer {
	__le16 wlength;
	u8 rx_rate;
	u8 newbss;
	u8 fragmentation;
	u8 rssi;
	u8 link_quality;
	u8 noise_level;
	__le32 rx_time;
	u8 packet[IEEE80211_MAX_FRAG_THRESHOLD];
	} __packed;

	/* Length of Atmel-specific Tx header before 802.11 frame */
	#define AT76_TX_HDRLEN offsetof(struct at76_tx_buffer, packet)

	struct at76_tx_buffer {
	__le16 wlength;
	u8 tx_rate;
	u8 padding;
	u8 reserved[4];
	u8 packet[IEEE80211_MAX_FRAG_THRESHOLD];
	} __packed;

	/* defines for scan_type below */
	#define SCAN_TYPE_ACTIVE 0
	#define SCAN_TYPE_PASSIVE 1

	struct at76_req_scan {
	u8 bssid[ETH_ALEN];
	u8 essid[32];
	u8 scan_type;
	u8 channel;
	__le16 probe_delay;
	__le16 min_channel_time;
	__le16 max_channel_time;
	u8 essid_size;
	u8 international_scan;
	} __packed;

	struct at76_req_ibss {
	u8 bssid[ETH_ALEN];
	u8 essid[32];
	u8 bss_type;
	u8 channel;
	u8 essid_size;
	u8 reserved[3];
	} __packed;

	struct at76_req_join {
	u8 bssid[ETH_ALEN];
	u8 essid[32];
	u8 bss_type;
	u8 channel;
	__le16 timeout;
	u8 essid_size;
	u8 reserved;
	} __packed;

	struct mib_local {
	u16 reserved0;
	u8 beacon_enable;
	u8 txautorate_fallback;
	u8 reserved1;
	u8 ssid_size;
	u8 promiscuous_mode;
	u16 reserved2;
	u8 preamble_type;
	u16 reserved3;
	} __packed;

	struct mib_mac_addr {
	u8 mac_addr[ETH_ALEN];
	u8 res[2]; /* ??? */
	u8 group_addr[4][ETH_ALEN];
	u8 group_addr_status[4];
	} __packed;

	struct mib_mac {
	__le32 max_tx_msdu_lifetime;
	__le32 max_rx_lifetime;
	__le16 frag_threshold;
	__le16 rts_threshold;
	__le16 cwmin;
	__le16 cwmax;
	u8 short_retry_time;
	u8 long_retry_time;
	u8 scan_type; /* active or passive */
	u8 scan_channel;
	__le16 probe_delay; /* delay before ProbeReq in active scan, RO */
	__le16 min_channel_time;
	__le16 max_channel_time;
	__le16 listen_interval;
	u8 desired_ssid[32];
	u8 desired_bssid[ETH_ALEN];
	u8 desired_bsstype; /* ad-hoc or infrastructure */
	u8 reserved2;
	} __packed;

	struct mib_mac_mgmt {
	__le16 beacon_period;
	__le16 CFP_max_duration;
	__le16 medium_occupancy_limit;
	__le16 station_id; /* assoc id */
	__le16 ATIM_window;
	u8 CFP_mode;
	u8 privacy_option_implemented;
	u8 DTIM_period;
	u8 CFP_period;
	u8 current_bssid[ETH_ALEN];
	u8 current_essid[32];
	u8 current_bss_type;
	u8 power_mgmt_mode;
	/* rfmd and 505 */
	u8 ibss_change;
	u8 res;
	u8 multi_domain_capability_implemented;
	u8 multi_domain_capability_enabled;
	u8 country_string[IEEE80211_COUNTRY_STRING_LEN];
	u8 reserved[3];
	} __packed;

	struct mib_mac_wep {
	u8 privacy_invoked; /* 0 disable encr., 1 enable encr */
	u8 wep_default_key_id;
	u8 wep_key_mapping_len;
	u8 exclude_unencrypted;
	__le32 wep_icv_error_count;
	__le32 wep_excluded_count;
	u8 wep_default_keyvalue[WEP_KEYS][WEP_LARGE_KEY_LEN];
	u8 encryption_level; /* 1 for 40bit, 2 for 104bit encryption */
	} __packed;

	struct mib_phy {
	__le32 ed_threshold;

	__le16 slot_time;
	__le16 sifs_time;
	__le16 preamble_length;
	__le16 plcp_header_length;
	__le16 mpdu_max_length;
	__le16 cca_mode_supported;

	u8 operation_rate_set[4];
	u8 channel_id;
	u8 current_cca_mode;
	u8 phy_type;
	u8 current_reg_domain;
	} __packed;

	struct mib_fw_version {
	u8 major;
	u8 minor;
	u8 patch;
	u8 build;
	} __packed;

	struct mib_mdomain {
	u8 tx_powerlevel[14];
	u8 channel_list[14]; /* 0 for invalid channels */
	} __packed;

	struct set_mib_buffer {
	u8 type;
	u8 size;
	u8 index;
	u8 reserved;
	union {
	u8 byte;
	__le16 word;
	u8 addr[ETH_ALEN];
	struct mib_mac_wep wep_mib;
	} data;
	} __packed;

	struct at76_fw_header {
	__le32 crc; /* CRC32 of the whole image */
	__le32 board_type; /* firmware compatibility code */
	u8 build; /* firmware build number */
	u8 patch; /* firmware patch level */
	u8 minor; /* firmware minor version */
	u8 major; /* firmware major version */
	__le32 str_offset; /* offset of the copyright string */
	__le32 int_fw_offset; /* internal firmware image offset */
	__le32 int_fw_len; /* internal firmware image length */
	__le32 ext_fw_offset; /* external firmware image offset */
	__le32 ext_fw_len; /* external firmware image length */
	} __packed;

	/* a description of a regulatory domain and the allowed channels */
	struct reg_domain {
	u16 code;
	char const *name;
	u32 channel_map; /* if bit N is set, channel (N+1) is allowed */
	};

	/* Data for one loaded firmware file */
	struct fwentry {
	const char *const fwname;
	const struct firmware *fw;
	int extfw_size;
	int intfw_size;
	/* pointer to loaded firmware, no need to free */
	u8 extfw; / external firmware, extfw_size bytes long */
	u8 intfw; / internal firmware, intfw_size bytes long */
	enum board_type board_type; /* board type */
	struct mib_fw_version fw_version;
	int loaded; /* Loaded and parsed successfully */
	};

	struct at76_priv {
	struct usb_device udev; / USB device pointer */

	struct sk_buff rx_skb; / skbuff for receiving data */
	struct sk_buff tx_skb; / skbuff for transmitting data */
	void bulk_out_buffer; / buffer for sending data */

	struct urb tx_urb; / URB for sending data */
	struct urb rx_urb; / URB for receiving data */

	unsigned int tx_pipe; /* bulk out pipe */
	unsigned int rx_pipe; /* bulk in pipe */

	struct mutex mtx; /* locks this structure */

	/* work queues */
	struct work_struct work_set_promisc;
	struct work_struct work_submit_rx;
	struct work_struct work_join_bssid;
	struct delayed_work dwork_hw_scan;

	struct tasklet_struct rx_tasklet;

	/* the WEP stuff */
	int wep_enabled; /* 1 if WEP is enabled */
	int wep_key_id; /* key id to be used */
	u8 wep_keys[WEP_KEYS][WEP_LARGE_KEY_LEN]; /* WEP keys */
	u8 wep_keys_len[WEP_KEYS]; /* length of WEP keys */

	int channel;
	int iw_mode;
	u8 bssid[ETH_ALEN];
	u8 essid[IW_ESSID_MAX_SIZE];
	int essid_size;
	int radio_on;
	int promisc;

	int preamble_type; /* 0 - long, 1 - short, 2 - auto */
	int auth_mode; /* authentication type: 0 open, 1 shared key */
	int txrate; /* 0,1,2,3 = 1,2,5.5,11 Mbps, 4 is auto */
	int frag_threshold; /* threshold for fragmentation of tx packets */
	int rts_threshold; /* threshold for RTS mechanism */
	int short_retry_limit;

	int scan_min_time; /* scan min channel time */
	int scan_max_time; /* scan max channel time */
	int scan_mode; /* SCAN_TYPE_ACTIVE, SCAN_TYPE_PASSIVE */
	int scan_need_any; /* if set, need to scan for any ESSID */
	bool scanning; /* if set, the scan is running */

	u16 assoc_id; /* current association ID, if associated */

	u8 pm_mode; /* power management mode */
	u32 pm_period; /* power management period in microseconds */

	struct reg_domain const domain; / reg domain description */

	/* These fields contain HW config provided by the device (not all of
	* these fields are used by all board types) */
	u8 mac_addr[ETH_ALEN];
	u8 regulatory_domain;

	struct at76_card_config card_config;

	enum board_type board_type;
	struct mib_fw_version fw_version;

	unsigned int device_unplugged:1;
	unsigned int netdev_registered:1;
	struct set_mib_buffer mib_buf; /* global buffer for set_mib calls */

	int beacon_period; /* period of mgmt beacons, Kus */

	struct ieee80211_hw *hw;
	int mac80211_registered;
	};

	#define AT76_SUPPORTED_FILTERS 0

	#define SCAN_POLL_INTERVAL (HZ / 4)

	#define CMD_COMPLETION_TIMEOUT (5 * HZ)

	#define DEF_RTS_THRESHOLD 1536
	#define DEF_FRAG_THRESHOLD 1536
	#define DEF_SHORT_RETRY_LIMIT 8
	#define DEF_CHANNEL 10
	#define DEF_SCAN_MIN_TIME 10
	#define DEF_SCAN_MAX_TIME 120

	/* the max padding size for tx in bytes (see calc_padding) */
	#define MAX_PADDING_SIZE 53

	#endif /* _AT76_USB_H */