diff options
Diffstat (limited to 'at76_usb.h')
| -rw-r--r-- | at76_usb.h | 841 |
1 files changed, 841 insertions, 0 deletions
diff --git a/at76_usb.h b/at76_usb.h new file mode 100644 index 0000000..8af15aa --- /dev/null +++ b/at76_usb.h @@ -0,0 +1,841 @@ +/* + * Copyright (c) 2002,2003 Oliver Kurth + * (c) 2003,2004 Jörg 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 _AT76C503_H +#define _AT76C503_H + +#include <net/ieee80211.h> + +/* current driver version */ +#define DRIVER_VERSION "0.15dev" + +/* our private ioctl's */ +/* set preamble length*/ +#define PRIV_IOCTL_SET_SHORT_PREAMBLE (SIOCIWFIRSTPRIV + 0x0) +/* set debug parameter */ +#define PRIV_IOCTL_SET_DEBUG (SIOCIWFIRSTPRIV + 0x2) +/* set power save mode (incl. the Atmel proprietary smart save mode */ +#define PRIV_IOCTL_SET_POWERSAVE_MODE (SIOCIWFIRSTPRIV + 0x4) +/* set min and max channel times for scan */ +#define PRIV_IOCTL_SET_SCAN_TIMES (SIOCIWFIRSTPRIV + 0x6) +/* set scan mode */ +#define PRIV_IOCTL_SET_SCAN_MODE (SIOCIWFIRSTPRIV + 0x8) +/* set international roaming */ +#define PRIV_IOCTL_SET_INTL_ROAMING (SIOCIWFIRSTPRIV + 0x10) +/* set monitor mode */ +#define PRIV_IOCTL_SET_MONITOR_MODE (SIOCIWFIRSTPRIV + 0x12) + +#define DEVICE_VENDOR_REQUEST_OUT 0x40 +#define DEVICE_VENDOR_REQUEST_IN 0xc0 +#define INTERFACE_VENDOR_REQUEST_OUT 0x41 +#define INTERFACE_VENDOR_REQUEST_IN 0xc1 +#define CLASS_REQUEST_OUT 0x21 +#define CLASS_REQUEST_IN 0xa1 + +#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 0x06 +#define CMD_STARTUP 0x0B +#define CMD_GETOPMODE 0x33 + +#define MIB_LOCAL 0x01 +#define MIB_MAC_ADD 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_SHORT 1 +#define PREAMBLE_TYPE_LONG 0 + +/* 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 PM_ACTIVE 1 +#define PM_SAVE 2 +#define PM_SMART_SAVE 3 + +/* international roaming state */ +#define IR_OFF 0 +#define IR_ON 1 + +/* monitor mode - param of private ioctl */ +#define MM_OFF 0 +#define MM_ON 1 +#define MM_ON_NO_PRISM 2 + + +/* offsets into the MIBs we use to configure the device */ +#define TX_AUTORATE_FALLBACK_OFFSET offsetof(struct mib_local,txautorate_fallback) +#define FRAGMENTATION_OFFSET offsetof(struct mib_mac,frag_threshold) +#define PREAMBLE_TYPE_OFFSET offsetof(struct mib_local,preamble_type) +#define RTS_OFFSET offsetof(struct mib_mac, rts_threshold) + +/* valid only for rfmd and 505 !*/ +#define IBSS_CHANGE_OK_OFFSET offsetof(struct mib_mac_mgmt, ibss_change) +#define IROAMING_IMPL_OFFSET offsetof(struct mib_mac_mgmt, multi_domain_capability_implemented) +#define IROAMING_OFFSET \ + offsetof(struct mib_mac_mgmt, multi_domain_capability_enabled) +/* the AssocID */ +#define STATION_ID_OFFSET offsetof(struct mib_mac_mgmt, station_id) +#define POWER_MGMT_MODE_OFFSET offsetof(struct mib_mac_mgmt, power_mgmt_mode) +#define LISTEN_INTERVAL_OFFSET offsetof(struct mib_mac, listen_interval) + +#define PRIVACY_OPT_IMPL offsetof(struct mib_mac_mgmt, privacy_option_implemented) + +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]; +} __attribute__ ((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]; +} __attribute__ ((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]; +} __attribute__ ((packed)); + +#define WEP_SMALL_KEY_LEN (40/8) +#define WEP_LARGE_KEY_LEN (104/8) + +struct at76c503_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_KEY_LEN]; + u8 ssid_len; + u8 short_preamble; + __le16 beacon_period; +} __attribute__ ((packed)); + +struct at76c503_command{ + u8 cmd; + u8 reserved; + __le16 size; +} __attribute__ ((packed)); + +/* the length of the Atmel firmware specific rx header before IEEE 802.11 starts */ +#define AT76C503_RX_HDRLEN offsetof(struct at76c503_rx_buffer, packet) + +struct at76c503_rx_buffer { + __le16 wlength; + u8 rx_rate; + u8 newbss; + u8 fragmentation; + u8 rssi; + u8 link_quality; + u8 noise_level; + u8 rx_time[4]; + u8 packet[IEEE80211_FRAME_LEN + IEEE80211_FCS_LEN]; +} __attribute__ ((packed)); + +/* the length of the Atmel firmware specific tx header before IEEE 802.11 starts */ +#define AT76C503_TX_HDRLEN offsetof(struct at76c503_tx_buffer, packet) + +struct at76c503_tx_buffer { + __le16 wlength; + u8 tx_rate; + u8 padding; + u8 reserved[4]; + u8 packet[IEEE80211_FRAME_LEN + IEEE80211_FCS_LEN]; +} __attribute__ ((packed)); + +/* defines for scan_type below */ +#define SCAN_TYPE_ACTIVE 0 +#define SCAN_TYPE_PASSIVE 1 + +struct at76c503_start_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; +} __attribute__ ((packed)); + +struct at76c503_start_bss { + u8 bssid[ETH_ALEN]; + u8 essid[32]; + u8 bss_type; + u8 channel; + u8 essid_size; + u8 reserved[3]; +} __attribute__ ((packed)); + +struct at76c503_join { + u8 bssid[ETH_ALEN]; + u8 essid[32]; + u8 bss_type; + u8 channel; + __le16 timeout; + u8 essid_size; + u8 reserved; +} __attribute__ ((packed)); + +struct set_mib_buffer { + u8 type; + u8 size; + u8 index; + u8 reserved; + u8 data[72]; +} __attribute__ ((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; +} __attribute__ ((packed)); + +struct mib_mac_addr { + u8 mac_addr[ETH_ALEN]; + u8 res[2]; /* ??? */ + u8 group_addr[4][ETH_ALEN]; + u8 group_addr_status[4]; +} __attribute__ ((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 sending a 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; +} __attribute__ ((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[3]; + u8 reserved[3]; +} __attribute__ ((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_KEY_LEN]; + u8 encryption_level; /* 1 for 40bit, 2 for 104bit encryption */ +} __attribute__ ((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; +} __attribute__ ((packed)); + +struct mib_fw_version { + u8 major; + u8 minor; + u8 patch; + u8 build; +} __attribute__ ((packed)); + +struct mib_mdomain { + u8 tx_powerlevel[14]; + u8 channel_list[14]; /* 0 for invalid channels */ +} __attribute__ ((packed)); + +static u8 snapsig[] = {0xaa, 0xaa, 0x03}; +/* RFC 1042 encapsulates Ethernet frames in 802.2 SNAP (0xaa, 0xaa, 0x03) with + * a SNAP OID of 0 (0x00, 0x00, 0x00) */ +static u8 rfc1042sig[] = {0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00}; + +/* states in infrastructure mode */ +enum infra_state { + INIT, + SCANNING, + AUTHENTICATING, + ASSOCIATING, + REASSOCIATING, + DISASSOCIATING, + JOINING, + CONNECTED, + STARTIBSS, + INTFW_DOWNLOAD, + EXTFW_DOWNLOAD, + WAIT_FOR_DISCONNECT, + MONITORING, +}; + +#define KEVENT_CTRL_HALT 1 +#define KEVENT_NEW_BSS 2 +#define KEVENT_SET_PROMISC 3 +#define KEVENT_MGMT_TIMEOUT 4 +#define KEVENT_SCAN 5 +#define KEVENT_JOIN 6 +#define KEVENT_STARTIBSS 7 +#define KEVENT_SUBMIT_RX 8 +#define KEVENT_RESTART 9 /* restart the device */ +#define KEVENT_ASSOC_DONE 10 /* execute the power save settings: + listen interval, pm mode, assoc id */ +#define KEVENT_EXTERNAL_FW 11 +#define KEVENT_INTERNAL_FW 12 +#define KEVENT_RESET_DEVICE 13 + +/* 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 */ +}; + +/* how long do we keep a (I)BSS in the bss_list in jiffies + this should be long enough for the user to retrieve the table + (by iwlist ?) after the device started, because all entries from + other channels than the one the device locks on get removed, too */ +#define BSS_LIST_TIMEOUT (120*HZ) +/* struct to store BSS info found during scan */ +#define BSS_LIST_MAX_RATE_LEN 32 /* 32 rates should be enough ... */ + +struct bss_info{ + struct list_head list; + + u8 mac[ETH_ALEN]; /* real mac address, differs + for ad-hoc from bssid */ + u8 bssid[ETH_ALEN]; /* bssid */ + u8 ssid[IW_ESSID_MAX_SIZE+1]; /* ssid, +1 for trailing \0 + to make it printable */ + u8 ssid_len; /* length of ssid above */ + u8 channel; + u16 capa; /* the capabilities of the BSS (in original endianess - + we only check IEEE802_11 bits in it) */ + u16 beacon_interval; /* the beacon interval in units of TU (1.024 ms) + (in CPU endianess - we must calc. values from it) */ + u8 rates[BSS_LIST_MAX_RATE_LEN]; /* supported rates (list of bytes: + (basic_rate ? 0x80 : 0) + rate/(500 Kbit/s); e.g. + x82,x84,x8b,x96 for basic rates 1,2,5.5,11 MBit/s) */ + u8 rates_len; + + /* quality of received beacon */ + u8 rssi; + u8 link_qual; + u8 noise_level; + + unsigned long last_rx; /* time (jiffies) of last beacon received */ + u16 assoc_id; /* if this is dev->curr_bss this is the assoc id we got + in a successful AssocResponse */ +}; + +/* a rx data buffer to collect rx fragments */ +struct rx_data_buf { + u8 sender[ETH_ALEN]; /* sender address */ + u16 seqnr; /* sequence number */ + u16 fragnr; /* last fragment received */ + unsigned long last_rx; /* jiffies of last rx */ + struct sk_buff *skb; /* == NULL if entry is free */ +}; + +#define NR_RX_DATA_BUF 8 +/* how often do we try to submit a rx urb until giving up */ +#define NR_SUBMIT_RX_TRIES 8 + +struct at76c503 { + struct usb_device *udev; /* USB device pointer */ + struct net_device *netdev; /* net device pointer */ + struct net_device_stats stats; + struct iw_statistics wstats; + struct usb_interface *interface; /* the interface for this device */ + + struct sk_buff * rx_skb; /* skbuff for receiving packets */ + __u8 bulk_in_endpointAddr; /* the address of the bulk in endpoint */ + + unsigned char * bulk_out_buffer; /* the buffer to send data */ + int bulk_out_size; /* the size of the send buffer */ + struct urb * write_urb; /* the urb used to send data */ + struct urb * read_urb; + __u8 bulk_out_endpointAddr; /* the address of the bulk out endpoint */ + + int open_count; /* number of times this port has been opened */ + struct semaphore sem; /* locks this structure */ + + + unsigned long kevent_flags; + struct work_struct kevent; + int nr_submit_rx_tries; /* number of tries to submit an rx urb left */ + struct tasklet_struct tasklet; + struct urb *rx_urb; /* tmp urb pointer for rx_tasklet */ + + unsigned char *ctrl_buffer; + struct urb *ctrl_urb; + + u8 op_mode; + + /* 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_KEY_LEN]; /* the four WEP keys, + 5 or 13 bytes are used */ + u8 wep_keys_len[WEP_KEYS]; /* the length of the above keys */ + + int channel; + int iw_mode; + int curr_ap; + u8 bssid[ETH_ALEN]; + u8 essid[IW_ESSID_MAX_SIZE]; + char nickn[IW_ESSID_MAX_SIZE+1]; /* nickname, only used in the iwconfig i/f */ + int essid_size; + int radio_on; + int promisc; + + int preamble_type; /* 0 - long preamble, 1 - short preamble */ + int auth_mode; /* authentication type: 0 open, 1 shared key */ + int txrate; /* 0,1,2,3 = 1,2,5.5,11 MBit, 4 is auto-fallback */ + 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_runs; /* counts how many scans are started */ + + /* the list we got from scanning */ + spinlock_t bss_list_spinlock; /* protects bss_list operations and setting + curr_bss and new_bss */ + struct list_head bss_list; /* the list of bss we received beacons from */ + struct timer_list bss_list_timer; /* a timer removing old entries from + the bss_list. It must acquire bss_list_spinlock + before and must not remove curr_bss nor + new_bss ! */ + struct bss_info *curr_bss; /* if istate == AUTH, ASSOC, REASSOC, JOIN or CONN + dev->bss[curr_bss] is the currently selected BSS + we operate on */ + struct bss_info *new_bss; /* if istate == REASSOC dev->new_bss + is the new bss we want to reassoc to */ + + u8 wanted_bssid[ETH_ALEN]; + int wanted_bssid_valid; /* != 0 if wanted_bssid is to be used */ + + /* some data for infrastructure mode only */ + spinlock_t mgmt_spinlock; /* this spinlock protects access to + next_mgmt_bulk */ + spinlock_t istate_spinlock;/* this spinlock protects access to + istate */ + + + struct at76c503_tx_buffer *next_mgmt_bulk; /* pending management msg to + send via bulk out */ + enum infra_state istate; + enum { + SITE_SURVEY_IDLE, + SITE_SURVEY_IN_PROGRESS, + SITE_SURVEY_COMPLETED + } site_survey_state; + time_t last_survey; + + struct timer_list restart_timer; /* the timer we use to delay the restart a bit */ + + struct timer_list mgmt_timer; /* the timer we use to repeat auth_req etc. */ + int retries; /* counts backwards while re-trying to send auth/assoc_req's */ + u16 assoc_id; /* the assoc_id for states JOINING, REASSOCIATING, CONNECTED */ + u8 pm_mode ; /* power management mode: ACTIVE, SAVE, SMART_SAVE */ + u32 pm_period_us; /* power manag. period (in us ?) - set by iwconfig */ + u32 pm_period_beacon; /* power manag. period (in beacon intervals + of the curr_bss) */ + u32 board_type; /* BOARDTYPE_* defined above */ + + struct reg_domain const *domain; /* the description of the regulatory domain */ + + /* iwspy support */ + spinlock_t spy_spinlock; + struct iw_spy_data spy_data; + + struct iw_public_data wireless_data; + + /* 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 bb_cr[14]; + u8 pidvid[4]; + u8 regulatory_domain; + u8 cr15_values[14]; + u8 cr20_values[14]; + u8 cr21_values[14]; + u8 cr31_values[14]; + u8 cr39_values[14]; + u8 cr58_values[14]; + u8 low_power_values[14]; + u8 normal_power_values[14]; + + struct at76c503_card_config card_config; + struct mib_fw_version fw_version; + + int rx_data_fcs_len; /* length of the trailing FCS + (0 for fw <= 0.84.x, 4 otherwise) */ + + /* store rx fragments until complete */ + struct rx_data_buf rx_data[NR_RX_DATA_BUF]; + + /* firmware downloading stuff */ + struct timer_list fw_dl_timer; /* timer used to wait after REMAP + until device is reset */ + int extfw_size; + int intfw_size; + /* these point into a buffer managed by at76c503-xxx.o, no need to dealloc */ + u8 *extfw; /* points to external firmware part, extfw_size bytes long */ + u8 *intfw; /* points to internal firmware part, intfw_size bytes long */ + unsigned int device_unplugged:1; + unsigned int netdev_registered:1; + char obuf[2*256+1]; /* global debug output buffer to reduce stack usage */ + char obuf_s[3*32]; /* small global debug output buffer to reduce stack usage */ + struct set_mib_buffer mib_buf; /* global buffer for set_mib calls */ + + /* new whiz-bang feature flags */ + int international_roaming; + int monitor_prism_header; /* if iw_mode == IW_MODE_MONITOR, + use Prism header */ + int monitor_scan_min_time; + int monitor_scan_max_time; + + int beacon_period; /* period of mgmt beacons */ + int beacons_received; + unsigned long beacons_last_qual; /* last time we reset beacons_received = 0 */ +}; + +/* Quasi-monitor mode defs (copied from <kernel>/drivers/net/wireless/orinoco.h) */ + +/* message data item for INT, BOUNDEDINT, ENUMINT */ +typedef struct p80211item_uint32 +{ + uint32_t did __attribute__ ((packed)); + uint16_t status __attribute__ ((packed)); + uint16_t len __attribute__ ((packed)); + uint32_t data __attribute__ ((packed)); +} __attribute__ ((packed)) p80211item_uint32_t; + +typedef struct p80211msg +{ + uint32_t msgcode __attribute__ ((packed)); + uint32_t msglen __attribute__ ((packed)); + uint8_t devname[IFNAMSIZ]; +} __attribute__ ((packed)) p80211msg_t; + +#define P80211ENUM_msgitem_status_data_ok 0 +#define P80211ENUM_msgitem_status_no_value 1 +#define P80211ENUM_truth_false 0 +#define P80211ENUM_truth_true 1 + +#define DIDmsg_lnxind_wlansniffrm 0x0041 +#define DIDmsg_lnxind_wlansniffrm_hosttime 0x1041 +#define DIDmsg_lnxind_wlansniffrm_mactime 0x2041 +#define DIDmsg_lnxind_wlansniffrm_channel 0x3041 +#define DIDmsg_lnxind_wlansniffrm_rssi 0x4041 +#define DIDmsg_lnxind_wlansniffrm_sq 0x5041 +#define DIDmsg_lnxind_wlansniffrm_signal 0x6041 +#define DIDmsg_lnxind_wlansniffrm_noise 0x7041 +#define DIDmsg_lnxind_wlansniffrm_rate 0x8041 +#define DIDmsg_lnxind_wlansniffrm_istx 0x9041 +#define DIDmsg_lnxind_wlansniffrm_frmlen 0xA041 + +typedef struct p80211msg_lnxind_wlansniffrm +{ + uint32_t msgcode; + uint32_t msglen; + uint8_t devname[IFNAMSIZ]; + p80211item_uint32_t hosttime; + p80211item_uint32_t mactime; + p80211item_uint32_t channel; + p80211item_uint32_t rssi; + p80211item_uint32_t sq; + p80211item_uint32_t signal; + p80211item_uint32_t noise; + p80211item_uint32_t rate; + p80211item_uint32_t istx; + p80211item_uint32_t frmlen; +} __attribute__ ((packed)) p80211msg_lnxind_wlansniffrm_t; + +#define BEACON_MAX_DATA_LENGTH 1500 +/* beacon in ieee80211_hdr_3addr.payload */ +struct ieee802_11_beacon_data { + u8 timestamp[8]; /* TSFTIMER */ + __le16 beacon_interval; /* Kms between TBTTs (Target Beacon Transmission Times) */ + __le16 capability_information; + u8 data[BEACON_MAX_DATA_LENGTH]; /* contains: SSID (tag,length,value), + Supported Rates (tlv), channel */ +} __attribute__ ((packed)); + +/* disassoc frame in ieee80211_hdr_3addr.payload */ +struct ieee802_11_disassoc_frame { + __le16 reason; +} __attribute__ ((packed)); +#define DISASSOC_FRAME_SIZE \ + (AT76C503_TX_HDRLEN + IEEE802_11_MGMT_HEADER_SIZE +\ + sizeof(struct ieee802_11_disassoc_frame)) + +/* assoc request in ieee80211_hdr_3addr.payload */ +struct ieee802_11_assoc_req { + __le16 capability; + __le16 listen_interval; + u8 data[1]; /* variable number of bytes for SSID + and supported rates (tlv coded) */ +}; +/* the maximum size of an AssocReq packet */ +#define ASSOCREQ_MAX_SIZE \ + (AT76C503_TX_HDRLEN + IEEE802_11_MGMT_HEADER_SIZE +\ + offsetof(struct ieee802_11_assoc_req,data) +\ + 1+1+IW_ESSID_MAX_SIZE + 1+1+4) + +/* reassoc request in ieee80211_hdr_3addr.payload */ +struct ieee802_11_reassoc_req { + __le16 capability; + __le16 listen_interval; + u8 curr_ap[ETH_ALEN]; /* the bssid of the AP we are + currently associated to */ + u8 data[1]; /* variable number of bytes for SSID + and supported rates (tlv coded) */ +} __attribute__ ((packed)); + +/* the maximum size of an AssocReq packet */ +#define REASSOCREQ_MAX_SIZE \ + (AT76C503_TX_HDRLEN + IEEE802_11_MGMT_HEADER_SIZE +\ + offsetof(struct ieee802_11_reassoc_req,data) +\ + 1+1+IW_ESSID_MAX_SIZE + 1+1+4) + +/* assoc/reassoc response */ +struct ieee802_11_assoc_resp { + __le16 capability; + __le16 status; + __le16 assoc_id; + u8 data[1]; /* variable number of bytes for + supported rates (tlv coded) */ +} __attribute__ ((packed)); + +/* auth. request/response in ieee80211_hdr_3addr.payload */ +struct ieee802_11_auth_frame { + __le16 algorithm; + __le16 seq_nr; + __le16 status; + u8 challenge[0]; +} __attribute__ ((packed)); +/* for shared secret auth, add the challenge text size */ +#define AUTH_FRAME_SIZE \ + (AT76C503_TX_HDRLEN + IEEE802_11_MGMT_HEADER_SIZE +\ + sizeof(struct ieee802_11_auth_frame)) + +/* deauth frame in ieee80211_hdr_3addr.payload */ +struct ieee802_11_deauth_frame { + __le16 reason; +} __attribute__ ((packed)); +#define DEAUTH_FRAME_SIZE \ + (AT76C503_TX_HDRLEN + IEEE802_11_MGMT_HEADER_SIZE +\ + sizeof(struct ieee802_11_disauth_frame)) + +/* how often do we re-try these packets ? */ +#define AUTH_RETRIES 3 +#define ASSOC_RETRIES 3 +#define DISASSOC_RETRIES 3 + +/* the beacon timeout in infra mode when we are connected (in seconds) */ +#define BEACON_TIMEOUT 10 +/* the interval in ticks we poll if scan is completed */ +#define SCAN_POLL_INTERVAL (HZ/4) + +#define DEF_RTS_THRESHOLD 1536 +#define DEF_FRAG_THRESHOLD 1536 +#define DEF_SHORT_RETRY_LIMIT 8 +#define DEF_CHANNEL 10 + +#define MAX_RTS_THRESHOLD (MAX_FRAG_THRESHOLD + 1) + +/* The frequency of each channel in MHz */ +static const long channel_frequency[] = { + 2412, 2417, 2422, 2427, 2432, 2437, 2442, + 2447, 2452, 2457, 2462, 2467, 2472, 2484 +}; +#define NUM_CHANNELS ( sizeof(channel_frequency) / sizeof(channel_frequency[0]) ) + +/* the broadcast address */ +static const u8 bc_addr[ETH_ALEN] = {0xff,0xff,0xff,0xff,0xff,0xff}; +static const u8 off_addr[ETH_ALEN] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; +/* the supported rates of this hardware, bit7 marks a basic rate */ +static const u8 hw_rates[4] = {0x82,0x84,0x0b,0x16}; + +/* the max padding size for tx in bytes (see calc_padding) */ +#define MAX_PADDING_SIZE 53 + +/* the size of the ieee802.11 header (excl. the at76c503 tx header) */ +#define IEEE802_11_MGMT_HEADER_SIZE offsetof(struct ieee80211_hdr_3addr, payload) + +/* at76_debug bits */ +#define DBG_PROGRESS 0x00000001 /* progress of scan-join-(auth-assoc)-connected */ +#define DBG_BSS_TABLE 0x00000002 /* show the bss table after scans */ +#define DBG_IOCTL 0x00000004 /* ioctl calls / settings */ +#define DBG_KEVENT 0x00000008 /* kevents */ +#define DBG_TX_DATA 0x00000010 /* tx header */ +#define DBG_TX_DATA_CONTENT 0x00000020 /* tx content */ +#define DBG_TX_MGMT 0x00000040 +#define DBG_RX_DATA 0x00000080 /* rx data header */ +#define DBG_RX_DATA_CONTENT 0x00000100 /* rx data content */ +#define DBG_RX_MGMT 0x00000200 /* rx mgmt header except beacon and probe responses */ +#define DBG_RX_BEACON 0x00000400 /* rx beacon */ +#define DBG_RX_CTRL 0x00000800 /* rx control */ +#define DBG_RX_MGMT_CONTENT 0x00001000 /* rx mgmt content */ +#define DBG_RX_FRAGS 0x00002000 /* rx data fragment handling */ +#define DBG_DEVSTART 0x00004000 /* fw download, device start */ +#define DBG_URB 0x00008000 /* rx urb status, ... */ +#define DBG_RX_ATMEL_HDR 0x00010000 /* the Atmel specific header of each rx packet */ +#define DBG_PROC_ENTRY 0x00020000 /* procedure entries and exits */ +#define DBG_PM 0x00040000 /* power management settings */ +#define DBG_BSS_MATCH 0x00080000 /* show why a certain bss did not match */ +#define DBG_PARAMS 0x00100000 /* show the configured parameters */ +#define DBG_WAIT_COMPLETE 0x00200000 /* show the wait_completion progress */ +#define DBG_RX_FRAGS_SKB 0x00400000 /* show skb header for incoming rx fragments */ +#define DBG_BSS_TABLE_RM 0x00800000 /* inform on removal of old bss table entries */ +#define DBG_MONITOR_MODE 0x01000000 /* debugs from monitor mode */ +#define DBG_MIB 0x02000000 /* dump all MIBs in startup_device */ +#define DBG_MGMT_TIMER 0x04000000 /* dump mgmt_timer ops */ +#define DBG_WE_EVENTS 0x08000000 /* dump wireless events */ +#define DBG_FW 0x10000000 /* firmware download */ +#define DBG_DFU 0x20000000 /* device firmware upgrade */ + +#define DBG_DEFAULTS 0 + +/* Use our own dbg macro */ +#undef dbg +#define dbg(bits, format, arg...) \ + do { \ + if (at76_debug & (bits)) \ + printk(KERN_DEBUG __FILE__ ": " format "\n" , ## arg);\ + } while (0) + +/* uncond. debug output */ +#define dbg_uc(format, arg...) \ + printk(KERN_DEBUG __FILE__ ": " format "\n" , ## arg) + +#define assert(x) \ + do {\ + if (!(x)) \ + err("%d: assertion " #x " failed", __LINE__);\ + } while (0) + +#endif /* _AT76C503_H */ |