diff options
Diffstat (limited to 'at76c503.h')
| -rw-r--r-- | at76c503.h | 180 |
1 files changed, 148 insertions, 32 deletions
@@ -1,26 +1,22 @@ -/* -*- linux-c -*- */ /* - * Copyright (c) 2002 - 2003 Oliver Kurth - * (c) 2003 - 2004 Jörg Albert <joerg.albert@gmx.de> + * 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 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: + * 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! - * - * For the latest version of this driver, mailinglists - * and other info, please check - * http://at76c503a.berlios.de/ + * 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 @@ -29,8 +25,7 @@ #include <net/ieee80211.h> /* current driver version */ -#define DRIVER_VERSION "0.14dev" - +#define DRIVER_VERSION "0.15dev" /* our private ioctl's */ /* set preamble length*/ @@ -137,15 +132,6 @@ #define PRIVACY_OPT_IMPL offsetof(struct mib_mac_mgmt, privacy_option_implemented) -#define BOARDTYPE_503_INTERSIL_3861 1 -#define BOARDTYPE_503_INTERSIL_3863 2 -#define BOARDTYPE_503_RFMD 3 -#define BOARDTYPE_503_RFMD_ACC 4 -#define BOARDTYPE_505_RFMD 5 -#define BOARDTYPE_505_RFMD_2958 6 -#define BOARDTYPE_505A_RFMD_2958 7 -#define BOARDTYPE_505AMX_RFMD 8 - struct hwcfg_r505 { u8 cr39_values[14]; u8 reserved1[14]; @@ -379,6 +365,11 @@ struct mib_mdomain { 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, @@ -396,6 +387,21 @@ enum infra_state { 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; @@ -408,7 +414,6 @@ struct reg_domain { (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 ... */ @@ -451,7 +456,6 @@ struct rx_data_buf { }; #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 @@ -636,8 +640,8 @@ typedef struct p80211msg uint8_t devname[IFNAMSIZ]; } __attribute__ ((packed)) p80211msg_t; -#define P80211ENUM_msgitem_status_data_ok 0 -#define P80211ENUM_msgitem_status_no_value 1 +#define P80211ENUM_msgitem_status_data_ok 0 +#define P80211ENUM_msgitem_status_no_value 1 #define P80211ENUM_truth_false 0 #define P80211ENUM_truth_true 1 @@ -670,6 +674,118 @@ typedef struct p80211msg_lnxind_wlansniffrm 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 */ |