diff options
Diffstat (limited to 'target/linux/package/ieee80211-dscape/src/include/net/ieee80211.h')
| -rw-r--r-- | target/linux/package/ieee80211-dscape/src/include/net/ieee80211.h | 872 |
1 files changed, 0 insertions, 872 deletions
diff --git a/target/linux/package/ieee80211-dscape/src/include/net/ieee80211.h b/target/linux/package/ieee80211-dscape/src/include/net/ieee80211.h deleted file mode 100644 index 5d8975527a..0000000000 --- a/target/linux/package/ieee80211-dscape/src/include/net/ieee80211.h +++ /dev/null @@ -1,872 +0,0 @@ -/* - * Low-level hardware driver -- IEEE 802.11 driver (80211.o) interface - * Copyright 2002-2005, Devicescape Software, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef IEEE80211_H -#define IEEE80211_H - -#include "ieee80211_shared.h" - -/* Note! Only ieee80211_tx_status_irqsafe() and ieee80211_rx_irqsave() can be - * called in hardware interrupt context. The low-level driver must not call any - * other functions in hardware interrupt context. If there is a need for such - * call, the low-level driver should first ACK the interrupt and perform the - * IEEE 802.11 code call after this, e.g., from a scheduled tasklet (in - * software interrupt context). - */ - -/* - * Frame format used when passing frame between low-level hardware drivers - * and IEEE 802.11 driver the same as used in the wireless media, i.e., - * buffers start with IEEE 802.11 header and include the same octets that - * are sent over air. - * - * If hardware uses IEEE 802.3 headers (and perform 802.3 <-> 802.11 - * conversion in firmware), upper layer 802.11 code needs to be changed to - * support this. - * - * If the receive frame format is not the same as the real frame sent - * on the wireless media (e.g., due to padding etc.), upper layer 802.11 code - * could be updated to provide support for such format assuming this would - * optimize the performance, e.g., by removing need to re-allocation and - * copying of the data. - */ - -/* Interface version (used for compatibility verification) */ -#define IEEE80211_VERSION 2 - - -/* Channel information structure. Low-level driver is expected to fill in chan, - * freq, and val fields. Other fields will be filled in by 80211.o based on - * hostapd information and low-level driver does not need to use them. The - * limits for each channel will be provided in 'struct ieee80211_conf' when - * configuring the low-level driver with hw->config callback. */ -struct ieee80211_channel { - short chan; /* channel number (IEEE 802.11) */ - short freq; /* frequency in MHz */ - int val; /* hw specific value for the channel */ - int flag; /* flag for hostapd use (IEEE80211_CHAN_*) */ - unsigned char power_level; - unsigned char antenna_max; -}; - -struct ieee80211_rate { - int rate; /* rate in 100 kbps */ - int val; /* hw specific value for the rate */ - int flags; /* IEEE80211_RATE_ flags */ - int val2; /* hw specific value for the rate when using short preamble - * (only when IEEE80211_RATE_PREAMBLE2 flag is set, i.e., for - * 2, 5.5, and 11 Mbps) */ - signed char min_rssi_ack; - unsigned char min_rssi_ack_delta; - - /* following fields are set by 80211.o and need not be filled by the - * low-level driver */ - int rate_inv; /* inverse of the rate (LCM(all rates) / rate) for - * optimizing channel utilization estimates */ -}; - -struct ieee80211_hw_modes { - int mode; - int num_channels; - struct ieee80211_channel *channels; - int num_rates; - struct ieee80211_rate *rates; - int xr_end; /* only used with Atheros XR */ -}; - -struct ieee80211_tx_queue_params { - int aifs; /* 0 .. 255; -1 = use default */ - int cw_min; /* 2^n-1: 1, 3, 7, .. , 1023; 0 = use default */ - int cw_max; /* 2^n-1: 1, 3, 7, .. , 1023; 0 = use default */ - int burst_time; /* maximum burst time in 0.1 ms (i.e., 10 = 1 ms); - * 0 = disabled */ -}; - -#define NUM_TX_DATA_QUEUES 6 - -struct ieee80211_tx_queue_stats_data { - unsigned int len; /* num packets in queue */ - unsigned int limit; /* queue len (soft) limit */ - unsigned int count; /* total num frames sent */ -}; - -struct ieee80211_tx_queue_stats { - struct ieee80211_tx_queue_stats_data data[NUM_TX_DATA_QUEUES]; -}; - -#ifndef IEEE80211_TX_QUEUE_NUMS -#define IEEE80211_TX_QUEUE_NUMS -/* TODO: these need to be synchronized with hostapd_ioctl.h; make a shared - * header file that can be included into low-level drivers, 80211.o, and - * hostapd */ -enum { - IEEE80211_TX_QUEUE_DATA0 = 0, - IEEE80211_TX_QUEUE_DATA1 = 1, - IEEE80211_TX_QUEUE_DATA2 = 2, - IEEE80211_TX_QUEUE_DATA3 = 3, - IEEE80211_TX_QUEUE_DATA4 = 4, - IEEE80211_TX_QUEUE_SVP = 5, - IEEE80211_TX_QUEUE_AFTER_BEACON = 6, - IEEE80211_TX_QUEUE_BEACON = 7 -}; -#endif /* IEEE80211_TX_QUEUE_NUMS */ - - -struct ieee80211_low_level_stats { - unsigned int dot11ACKFailureCount; - unsigned int dot11RTSFailureCount; - unsigned int dot11FCSErrorCount; - unsigned int dot11RTSSuccessCount; -}; - -/* Transmit control fields. This data structure is passed to low-level driver - * with each TX frame. The low-level driver is responsible of configuring - * hardware to use given values (depending on what is supported). */ -#define HW_KEY_IDX_INVALID -1 - -struct ieee80211_tx_control { - enum { PKT_NORMAL = 0, PKT_PROBE_RESP } pkt_type; - int tx_rate; /* Transmit rate, given as the hw specific value for the - * rate (from struct ieee80211_rate) */ - int rts_cts_rate; /* Transmit rate for RTS/CTS frame, given as the hw - * specific value for the rate (from - * struct ieee80211_rate) */ - /* 1 = only first attempt, 2 = one retry, .. */ - unsigned int retry_limit:8; - /* duration field for RTS/CTS frame */ - unsigned int rts_cts_duration:16; - /* TODO: change these bit flags to use one unsigned int variable and - * defines with BIT(n). These are copied to TX status structure and - * this will make the code faster and smaller. */ - unsigned int req_tx_status:1; /* request TX status callback for this - * frame */ - unsigned int do_not_encrypt:1; /* send this frame without encryption; - * e.g., for EAPOL frames */ - unsigned int use_rts_cts:1; /* Use RTS-CTS before sending frame. */ - unsigned int use_cts_protect:1; /* Use CTS protection for the frame - * (e.g., for combined 802.11g / - * 802.11b networks) */ - unsigned int no_ack:1; /* Tell the low level not to wait for an ack */ - unsigned int rate_ctrl_probe:1; - unsigned int clear_dst_mask:1; - unsigned int requeue:1; - /* following three flags are only used with Atheros Super A/G */ - unsigned int compress:1; - unsigned int turbo_prime_notify:1; /* notify HostaAPd after frame - * transmission */ - unsigned int fast_frame:1; - - unsigned int atheros_xr:1; /* only used with Atheros XR */ - - unsigned int power_level:8; /* per-packet transmit power level, in dBm - */ - unsigned int antenna_sel:4; /* 0 = default/diversity, - * 1 = Ant0, 2 = Ant1 */ - int key_idx:8; /* -1 = do not encrypt, >= 0 keyidx from hw->set_key() - */ - int icv_len:8; /* Length of the ICV/MIC field in octets */ - int iv_len:8; /* Length of the IV field in octets */ - unsigned int queue:4; /* hardware queue to use for this frame; - * 0 = highest, hw->queues-1 = lowest */ - unsigned int sw_retry_attempt:4; /* no. of times hw has tried to - * transmit frame (not incl. hw retries) */ - -#if 0 - int rateidx; /* internal 80211.o rateidx, to be copied to tx_status */ - int alt_retry_rate; /* retry rate for the last retries, given as the - * hw specific value for the rate (from - * struct ieee80211_rate). To be used to limit - * packet dropping when probing higher rates, if hw - * supports multiple retry rates. -1 = not used */ -#endif -}; - -#define IEEE80211_CB_MAGIC 0xAAB80211 - -struct ieee80211_tx_packet_data { - unsigned int magic; - struct ieee80211_tx_control control; - unsigned long jiffies; - struct ieee80211_sub_if_data *sdata; -}; - -#define RX_FLAG_MMIC_ERROR 0x1 -#define RX_FLAG_DECRYPTED 0x2 -#define RX_FLAG_XR_DOUBLE_CHIRP 0x4 - -/* Receive status. The low-level driver should provide this information - * (the subset supported by hardware) to the 802.11 code with each received - * frame. - * Current implementation copies this into skb->cb, so it must be less than - * 48 bytes. */ -struct ieee80211_rx_status { -#if 0 - u64 hosttime; - u64 mactime; -#endif - int freq; /* receive frequency in Mhz */ - int channel; - int phymode; - int ssi; - int antenna; - int rate; - int flag; -}; - -/* Transmit status. The low-level driver should provide this information - * (the subset supported by hardware) to the 802.11 code for each transmit - * frame. */ -struct ieee80211_tx_status { - /* flags copied from struct ieee80211_tx_control) */ - unsigned int req_tx_status:1; /* whether TX status was explicitly - * requested */ - unsigned int rate_ctrl_probe:1; /* whether this was a probe packet from - * rate control */ - unsigned int tx_filtered:1; - - /* following three fields are only used with Atheros Super A/G */ - unsigned int turbo_prime_notify:1; /* notify HostAPd - CTS for Turbo - * Prime is sent */ - int queue_length; /* information about TX queue */ - int queue_number; - - int ack; /* whether the TX frame was ACKed */ - int ack_signal; /* measured signal strength of the ACK frame */ - int excessive_retries; - int retry_count; - int rateidx; /* internal 80211.o rateidx, to be copied to tx_status */ -}; - - -struct ieee80211_conf { - int channel; /* IEEE 802.11 channel number */ - int freq; /* MHz */ - int channel_val; /* hw specific value for the channel */ - - int mode; /* IW_MODE_ */ - - int phymode; /* MODE_IEEE80211A, .. */ - unsigned int regulatory_domain; - int adm_status; - - int beacon_int; - - /* Bitfields, grouped together */ - - int sw_encrypt:1; - int sw_decrypt:1; - int short_slot_time:1; /* use IEEE 802.11g Short Slot Time */ - int ssid_hidden:1; /* do not broadcast the ssid */ - - /* these fields are used by low level drivers for hardware - * that generate beacons independently */ - u8 *ssid; - size_t ssid_len; - u8 *generic_elem; - size_t generic_elem_len; - - u8 power_level; /* transmit power limit for current - * regulatory domain; in dBm */ - u8 antenna_max; /* maximum antenna gain */ - short tx_power_reduction; /* in 0.1 dBm */ - - int antenna_sel; /* default antenna conf: - * 0 = default/diversity, - * 1 = Ant0, - * 2 = Ant1 */ - - int calib_int; /* hw/radio calibration interval in - * seconds */ - int antenna_def; - int antenna_mode; - - u8 bssid_mask[ETH_ALEN]; /* ff:ff:ff:ff:ff:ff = 1 BSSID */ - int bss_count; - - int atheros_super_ag_compression; - int atheros_super_ag_fast_frame; - int atheros_super_ag_burst; - int atheros_super_ag_wme_ele; - int atheros_super_ag_turbo_g; - int atheros_super_ag_turbo_prime; - - int atheros_xr; - - u8 client_bssid[ETH_ALEN]; - - /* Following five fields are used for IEEE 802.11H */ - unsigned int radar_detect; - unsigned int spect_mgmt; - unsigned int quiet_duration; /* duration of quiet period */ - unsigned int quiet_offset; /* how far into the beacon is the quiet - * period */ - unsigned int quiet_period; -}; - - -typedef enum { ALG_NONE, ALG_WEP, ALG_TKIP, ALG_CCMP, ALG_NULL } -ieee80211_key_alg; - - -struct ieee80211_key_conf { - - int hw_key_idx; /* filled + used by low-level driver */ - ieee80211_key_alg alg; - int keylen; - - int force_sw_encrypt:1; /* to be cleared by low-level driver */ - int keyidx:8; /* WEP key index */ - int default_tx_key:1; /* This key is the new default TX key - * (used only for broadcast keys). */ - int default_wep_only:1; /* static WEP is the only configured security - * policy; this allows some low-level drivers - * to determine when hwaccel can be used */ - u8 key[0]; -}; - -#define IEEE80211_SCAN_START 1 -#define IEEE80211_SCAN_END 2 - -struct ieee80211_scan_conf { - int scan_channel; /* IEEE 802.11 channel number to do passive scan - * on */ - int scan_freq; /* new freq in MHz to switch to for passive scan - */ - int scan_channel_val; /* hw specific value for the channel */ - int scan_phymode; /* MODE_IEEE80211A, .. */ - unsigned char scan_power_level; - unsigned char scan_antenna_max; - - - int running_channel; /* IEEE 802.11 channel number we operate on - * normally */ - int running_freq; /* freq in MHz we're operating on normally */ - int running_channel_val; /* hw specific value for the channel */ - int running_phymode; - unsigned char running_power_level; - unsigned char running_antenna_max; - - int scan_time; /* time a scan will take in us */ - int tries; - - struct sk_buff *skb; /* skb to transmit before changing channels, maybe - * NULL for none */ - struct ieee80211_tx_control *tx_control; - -}; - -#ifndef IW_MODE_ADHOC -#define IW_MODE_ADHOC 1 -#endif - -#ifndef IW_MODE_INFRA -#define IW_MODE_INFRA 2 -#endif - -#ifndef IW_MODE_MASTER -#define IW_MODE_MASTER 3 -#endif - -#ifndef IW_MODE_MONITOR -#define IW_MODE_MONITOR 6 -#endif - -#define IEEE80211_SEQ_COUNTER_RX 0 -#define IEEE80211_SEQ_COUNTER_TX 1 - -typedef enum { - SET_KEY, DISABLE_KEY, REMOVE_ALL_KEYS, - ENABLE_COMPRESSION, DISABLE_COMPRESSION -} set_key_cmd; - -/* Configuration block used by the low-level driver to tell 802.11 code about - * supported hardware features and to pass function pointers for callback - * functions. */ -struct ieee80211_hw { - int version; /* IEEE80211_VERSION */ - - /* Driver name */ - char *name; - - /* TODO: frame_type 802.11/802.3, sw_encryption requirements */ - - /* Some wireless LAN chipsets generate beacons in the hardware/firmware - * and others rely on host generated beacons. This option is used to - * configure upper layer IEEE 802.11 module to generate beacons. The - * low-level driver can use ieee80211_beacon_get() to fetch next - * beacon frame. */ - int host_gen_beacon:1; - - - /* Some devices handle decryption internally and do not - * indicate whether the frame was encrypted (unencrypted frames - * will be dropped by the hardware, unless specifically allowed - * through) */ - int device_hides_wep:1; - - /* Whether RX frames passed to ieee80211_rx() include FCS in the end - */ - int rx_includes_fcs:1; - - /* Some wireless LAN chipsets buffer broadcast/multicast frames for - * power saving stations in the hardware/firmware and others rely on - * the host system for such buffering. This option is used to - * configure upper layer IEEE 802.11 to buffer broadcast/multicast - * frames when there are power saving stations so that low-level driver - * can fetch them with ieee80211_get_buffered_bc(). */ - int host_broadcast_ps_buffering:1; - - int wep_include_iv:1; - int data_nullfunc_ack:1; /* will data nullfunc frames get proper - * TX status callback */ - - /* Force sw version of encryption for TKIP packets if WMM is enabled. - */ - int no_tkip_wmm_hwaccel:1; - - /* 1 if the payload needs to be padded at even boundaries after the - * header */ - unsigned int extra_hdr_room:1; - - /* Some devices handle Michael MIC internally and do not include MIC in - * the received packets given to 80211.o. device_strips_mic must be set - * for such devices. ISWEP bit is still expected to be set in the IEEE - * 802.11 header with this option unlike with device_hides_wep option. - */ - unsigned int device_strips_mic:1; - - /* 1 = low-level driver supports skb fraglist (NETIF_F_FRAGLIST), i.e., - * more than one skb per frame */ - unsigned int fraglist; - - /* This is the time in us to change channels - */ - int channel_change_time; - - int num_modes; - struct ieee80211_hw_modes *modes; - - /* Handler that 802.11 module calls for each transmitted frame. - * skb contains the buffer starting from the IEEE 802.11 header. - * The low-level driver should send the frame out based on - * configuration in the TX control data. */ - int (*tx)(struct net_device *dev, struct sk_buff *skb, - struct ieee80211_tx_control *control); - - /* Handler for performing hardware reset. */ - int (*reset)(struct net_device *dev); - - /* Handler that is called when any netdevice attached to the hardware - * device is set UP for the first time. This can be used, e.g., to - * enable interrupts and beacon sending. */ - int (*open)(struct net_device *dev); - - /* Handler that is called when the last netdevice attached to the - * hardware device is set DOWN. This can be used, e.g., to disable - * interrupts and beacon sending. */ - int (*stop)(struct net_device *dev); - - /* Handler for configuration requests. IEEE 802.11 code calls this - * function to change hardware configuration, e.g., channel. */ - int (*config)(struct net_device *dev, struct ieee80211_conf *conf); - - /* Set TIM bit handler. If the hardware/firmware takes care of beacon - * generation, IEEE 802.11 code uses this function to tell the - * low-level to set (or clear if set==0) TIM bit for the given aid. If - * host system is used to generate beacons, this handler is not used - * and low-level driver should set it to NULL. */ - int (*set_tim)(struct net_device *dev, int aid, int set); - - /* Set encryption key. IEEE 802.11 module calls this function to set - * encryption keys. addr is ff:ff:ff:ff:ff:ff for default keys and - * station hwaddr for individual keys. aid of the station is given - * to help low-level driver in selecting which key->hw_key_idx to use - * for this key. TX control data will use the hw_key_idx selected by - * the low-level driver. */ - int (*set_key)(struct net_device *dev, set_key_cmd cmd, u8 *addr, - struct ieee80211_key_conf *key, int aid); - - /* Set TX key index for default/broadcast keys. This is needed in cases - * where wlan card is doing full WEP/TKIP encapsulation (wep_include_iv - * is not set), in other cases, this function pointer can be set to - * NULL since 80211.o takes care of selecting the key index for each - * TX frame. */ - int (*set_key_idx)(struct net_device *dev, int idx); - - /* Enable/disable IEEE 802.1X. This item requests wlan card to pass - * unencrypted EAPOL-Key frames even when encryption is configured. - * If the wlan card does not require such a configuration, this - * function pointer can be set to NULL. 80211.o */ - int (*set_ieee8021x)(struct net_device *dev, int use_ieee8021x); - - /* Set port authorization state (IEEE 802.1X PAE) to be authorized - * (authorized=1) or unauthorized (authorized=0). This function can be - * used if the wlan hardware or low-level driver implements PAE. - * 80211.o module will anyway filter frames based on authorization - * state, so this function pointer can be NULL if low-level driver does - * not require event notification about port state changes. */ - int (*set_port_auth)(struct net_device *dev, u8 *addr, int authorized); - - /* Ask the hardware to do a passive scan on a new channel. The hardware - * will do what ever is required to nicely leave the current channel - * including transmit any CTS packets, etc. */ - int (*passive_scan)(struct net_device *dev, int state, - struct ieee80211_scan_conf *conf); - - /* return low-level statistics */ - int (*get_stats)(struct net_device *dev, - struct ieee80211_low_level_stats *stats); - - /* Enable/disable test modes; mode = IEEE80211_TEST_* */ - int (*test_mode)(struct net_device *dev, int mode); - - /* Configuration of test parameters */ - int (*test_param)(struct net_device *dev, int param, int value); - - /* Change MAC address. addr is pointer to struct sockaddr. */ - int (*set_mac_address)(struct net_device *dev, void *addr); - - /* For devices that generate their own beacons and probe response - * or association responses this updates the state of privacy_invoked - * returns 0 for success or an error number */ - - int (*set_privacy_invoked)(struct net_device *dev, - int privacy_invoked); - - /* For devices that have internal sequence counters, allow 802.11 - * code to access the current value of a counter */ - int (*get_sequence_counter)(struct net_device *dev, - u8* addr, u8 keyidx, u8 txrx, - u32* iv32, u16* iv16); - - /* Configuration of RTS threshold (if device needs it) */ - int (*set_rts_threshold)(struct net_device *dev, u32 value); - - /* Configuration of fragmentation threshold (if device needs it) */ - int (*set_frag_threshold)(struct net_device *dev, u32 value); - - /* Configuration of retry limits (if device needs it) */ - int (*set_retry_limit)(struct net_device *dev, u32 short_retry, - u32 long_retr); - - /* Number of STAs in STA table notification (NULL = disabled) */ - void (*sta_table_notification)(struct net_device *dev, int num_sta); - - /* Configure TX queue parameters (EDCF (aifs, cw_min, cw_max), - * bursting) for a hardware TX queue. - * queue = IEEE80211_TX_QUEUE_*. */ - int (*conf_tx)(struct net_device *dev, int queue, - const struct ieee80211_tx_queue_params *params); - - /* Get statistics of the current TX queue status. This is used to get - * number of currently queued packets (queue length), maximum queue - * size (limit), and total number of packets sent using each TX queue - * (count). This information is used for WMM to find out which TX - * queues have room for more packets and by hostapd to provide - * statistics about the current queueing state to external programs. */ - int (*get_tx_stats)(struct net_device *dev, - struct ieee80211_tx_queue_stats *stats); - - /* Number of available hardware TX queues for data packets. - * WMM requires at least four queues. */ - int queues; - - /* Get the current TSF timer value from firmware/hardware. Currently, - * this is only used for IBSS mode debugging and, as such, is not a - * required function. */ - u64 (*get_tsf)(struct net_device *dev); - - /* Reset the TSF timer and allow firmware/hardware to synchronize with - * other STAs in the IBSS. This is only used in IBSS mode. This - * function is optional if the firmware/hardware takes full care of - * TSF synchronization. */ - void (*reset_tsf)(struct net_device *dev); - - /* Setup beacon data for IBSS beacons. Unlike access point (Master), - * IBSS uses a fixed beacon frame which is configured using this - * function. This handler is required only for IBSS mode. */ - int (*beacon_update)(struct net_device *dev, struct sk_buff *skb, - struct ieee80211_tx_control *control); - - /* Determine whether the last IBSS beacon was sent by us. This is - * needed only for IBSS mode and the result of this function is used to - * determine whether to reply to Probe Requests. */ - int (*tx_last_beacon)(struct net_device *dev); - - /* Optional handler for XR-in-use notification. */ - int (*atheros_xr_in_use)(struct net_device *dev, int in_use); -}; - -/* Allocate a new hardware device. This must be called once for each - * hardware device. The returned pointer must be used to refer to this - * device when calling other functions. 802.11 code allocates a private data - * area for the low-level driver. The size of this area is given as - * priv_data_len. ieee80211_dev_hw_data() is used to get a pointer to the - * private data area. - * - * Note: in this version of the interface the returned pointer is struct - * net_device *. This may change in the future and low-level driver should - * not refer the device data directly to remain compatible with the future - * versions of the interface. */ -struct net_device *ieee80211_alloc_hw(size_t priv_data_len, - void (*setup)(struct net_device *)); - -/* Register hardware device to the IEEE 802.11 code and kernel. Low-level - * drivers must call this function before using any other IEEE 802.11 - * function. */ -int ieee80211_register_hw(struct net_device *dev, struct ieee80211_hw *hw); - -/* This function is allowed to update hardware configuration (e.g., list of - * supported operation modes and rates). */ -int ieee80211_update_hw(struct net_device *dev, struct ieee80211_hw *hw); - -/* Unregister a hardware device. This function instructs 802.11 code to free - * allocated resources and unregister netdevices from the kernel. */ -void ieee80211_unregister_hw(struct net_device *dev); - -/* Free allocated net_device including private data of a driver. */ -void ieee80211_free_hw(struct net_device *dev); - -/* Receive frame callback function. The low-level driver uses this function to - * send received frames to the IEEE 802.11 code. Receive buffer (skb) must - * start with IEEE 802.11 header. */ -void ieee80211_rx(struct net_device *dev, struct sk_buff *skb, - struct ieee80211_rx_status *status); -void ieee80211_rx_irqsafe(struct net_device *dev, struct sk_buff *skb, - struct ieee80211_rx_status *status); - -/* Transmit status callback function. The low-level driver must call this - * function to report transmit status for all the TX frames that had - * req_tx_status set in the transmit control fields. In addition, this should - * be called at least for all unicast frames to provide information for TX rate - * control algorithm. In order to maintain all statistics, this function is - * recommended to be called after each frame, including multicast/broadcast, is - * sent. */ -void ieee80211_tx_status(struct net_device *dev, struct sk_buff *skb, - struct ieee80211_tx_status *status); -void ieee80211_tx_status_irqsafe(struct net_device *dev, struct sk_buff *skb, - struct ieee80211_tx_status *status); - -/* Beacon generation function. If the beacon frames are generated by the host - * system (i.e., not in hardware/firmware), the low-level driver uses this - * function to receive the next beacon frame from the 802.11 code. The - * low-level is responsible for calling this function before beacon data is - * needed (e.g., based on hardware interrupt). Returned skb is used only once - * and low-level driver is responsible of freeing it. */ -struct sk_buff * ieee80211_beacon_get(struct net_device *dev, int bss_idx, - struct ieee80211_tx_control *control); - -/* Function for accessing buffered broadcast and multicast frames. If - * hardware/firmware does not implement buffering of broadcast/multicast - * frames when power saving is used, 802.11 code buffers them in the host - * memory. The low-level driver uses this function to fetch next buffered - * frame. In most cases, this is used when generating beacon frame. This - * function returns a pointer to the next buffered skb or NULL if no more - * buffered frames are available. - * - * Note: buffered frames are returned only after DTIM beacon frame was - * generated with ieee80211_beacon_get() and the low-level driver must thus - * call ieee80211_beacon_get() first. ieee80211_get_buffered_bc() returns - * NULL if the previous generated beacon was not DTIM, so the low-level driver - * does not need to check for DTIM beacons separately and should be able to - * use common code for all beacons. */ -struct sk_buff * -ieee80211_get_buffered_bc(struct net_device *dev, int bss_idx, - struct ieee80211_tx_control *control); - -/* Low level drivers that have their own MLME and MAC indicate - * the aid for an associating station with this call */ -int ieee80211_set_aid_for_sta(struct net_device *dev, u8 *peer_address, - u16 aid); - - -/* Given an sk_buff with a raw 802.11 header at the data pointer this function - * returns the 802.11 header length in bytes (not including encryption - * headers). If the data in the sk_buff is too short to contain a valid 802.11 - * header the function returns 0. - */ -int ieee80211_get_hdrlen_from_skb(struct sk_buff *skb); - -/* Like ieee80211_get_hdrlen_from_skb() but takes a FC in CPU order. */ -int ieee80211_get_hdrlen(u16 fc); - -/* Function for net interface operation. IEEE 802.11 may use multiple kernel - * netdevices for each hardware device. The low-level driver does not "see" - * these interfaces, so it should use this function to perform netif - * operations on all interface. */ -typedef enum { - NETIF_ATTACH, NETIF_DETACH, NETIF_START, NETIF_STOP, NETIF_WAKE, - NETIF_IS_STOPPED, NETIF_UPDATE_TX_START -} Netif_Oper; -int ieee80211_netif_oper(struct net_device *dev, Netif_Oper op); - - -/* - * Function to get hardware configuration information - * by the low level driver should it need it. - */ -struct ieee80211_conf * -ieee80211_get_hw_conf(struct net_device *dev); - - -/* Return a pointer to the low-level private data area for the given device. */ -void * ieee80211_dev_hw_data(struct net_device *dev); -/* Return a pointer to network statistics data area for the given device. */ -void * ieee80211_dev_stats(struct net_device *dev); - -/* Function to indicate Radar Detection. The low level driver must call this - * function to indicate the presence of radar in the current channel. - * Additionally the radar type also could be sent */ -int ieee80211_radar_status(struct net_device *dev, int channel, int radar, - int radar_type); - -/* Test modes */ -enum { - IEEE80211_TEST_DISABLE = 0 /* terminate testing */, - IEEE80211_TEST_UNMASK_CHANNELS = 1 /* allow all channels to be used */, - IEEE80211_TEST_CONTINUOUS_TX = 2, -}; - -/* Test parameters */ -enum { - /* TX power in hardware specific raw value */ - IEEE80211_TEST_PARAM_TX_POWER_RAW = 0, - /* TX rate in hardware specific raw value */ - IEEE80211_TEST_PARAM_TX_RATE_RAW = 1, - /* Continuous TX pattern (32-bit) */ - IEEE80211_TEST_PARAM_TX_PATTERN = 2, - /* TX power in 0.1 dBm, 100 = 10 dBm */ - IEEE80211_TEST_PARAM_TX_POWER = 3, - /* TX rate in 100 kbps, 540 = 54 Mbps */ - IEEE80211_TEST_PARAM_TX_RATE = 4, - IEEE80211_TEST_PARAM_TX_ANT_SEL_RAW = 5, -}; - -/* ieee80211_tx_led called with state == 1 when the first frame is queued - * with state == 0 when the last frame is transmitted and tx queue is empty - */ -void ieee80211_tx_led(int state, struct net_device *dev); -/* ieee80211_rx_led is called each time frame is received, state is not used - * (== 2) - */ -void ieee80211_rx_led(int state, struct net_device *dev); - - -/* IEEE 802.11 defines */ - -#define FCS_LEN 4 - -#define WLAN_FC_PVER 0x0003 -#define WLAN_FC_TODS 0x0100 -#define WLAN_FC_FROMDS 0x0200 -#define WLAN_FC_MOREFRAG 0x0400 -#define WLAN_FC_RETRY 0x0800 -#define WLAN_FC_PWRMGT 0x1000 -#define WLAN_FC_MOREDATA 0x2000 -#define WLAN_FC_ISWEP 0x4000 -#define WLAN_FC_ORDER 0x8000 - -#define WLAN_FC_GET_TYPE(fc) (((fc) & 0x000c) >> 2) -#define WLAN_FC_GET_STYPE(fc) (((fc) & 0x00f0) >> 4) - -#define WLAN_GET_SEQ_FRAG(seq) ((seq) & 0x000f) -#define WLAN_GET_SEQ_SEQ(seq) ((seq) >> 4) - -#define WLAN_FC_DATA_PRESENT(fc) (((fc) & 0x4c) == 0x08) - -#define WLAN_FC_TYPE_MGMT 0 -#define WLAN_FC_TYPE_CTRL 1 -#define WLAN_FC_TYPE_DATA 2 - -/* management */ -#define WLAN_FC_STYPE_ASSOC_REQ 0 -#define WLAN_FC_STYPE_ASSOC_RESP 1 -#define WLAN_FC_STYPE_REASSOC_REQ 2 -#define WLAN_FC_STYPE_REASSOC_RESP 3 -#define WLAN_FC_STYPE_PROBE_REQ 4 -#define WLAN_FC_STYPE_PROBE_RESP 5 -#define WLAN_FC_STYPE_BEACON 8 -#define WLAN_FC_STYPE_ATIM 9 -#define WLAN_FC_STYPE_DISASSOC 10 -#define WLAN_FC_STYPE_AUTH 11 -#define WLAN_FC_STYPE_DEAUTH 12 -#define WLAN_FC_STYPE_ACTION 13 - -/* control */ -#define WLAN_FC_STYPE_PSPOLL 10 -#define WLAN_FC_STYPE_RTS 11 -#define WLAN_FC_STYPE_CTS 12 -#define WLAN_FC_STYPE_ACK 13 -#define WLAN_FC_STYPE_CFEND 14 -#define WLAN_FC_STYPE_CFENDACK 15 - -/* data */ -#define WLAN_FC_STYPE_DATA 0 -#define WLAN_FC_STYPE_DATA_CFACK 1 -#define WLAN_FC_STYPE_DATA_CFPOLL 2 -#define WLAN_FC_STYPE_DATA_CFACKPOLL 3 -#define WLAN_FC_STYPE_NULLFUNC 4 -#define WLAN_FC_STYPE_CFACK 5 -#define WLAN_FC_STYPE_CFPOLL 6 -#define WLAN_FC_STYPE_CFACKPOLL 7 -#define WLAN_FC_STYPE_QOS_DATA 8 -#define WLAN_FC_STYPE_QOS_DATA_CFACK 9 -#define WLAN_FC_STYPE_QOS_DATA_CFPOLL 10 -#define WLAN_FC_STYPE_QOS_DATA_CFACKPOLL 11 -#define WLAN_FC_STYPE_QOS_NULLFUNC 12 -#define WLAN_FC_STYPE_QOS_CFACK 13 -#define WLAN_FC_STYPE_QOS_CFPOLL 14 -#define WLAN_FC_STYPE_QOS_CFACKPOLL 15 - - -#define IEEE80211_MAX_FRAG_THRESHOLD 2346 -#define IEEE80211_MAX_RTS_THRESHOLD 2347 - -struct ieee80211_hdr { - u16 frame_control; - u16 duration_id; - u8 addr1[6]; - u8 addr2[6]; - u8 addr3[6]; - u16 seq_ctrl; - u8 addr4[6]; -} __attribute__ ((packed)); - -/* return a pointer to the source address (SA) */ -static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr) -{ - u8 *raw = (u8 *) hdr; - u8 tofrom = (*(raw+1)) & 3; /* get the TODS and FROMDS bits */ - - switch (tofrom) { - case 2: - return hdr->addr3; - case 3: - return hdr->addr4; - } - return hdr->addr2; -} - -/* return a pointer to the destination address (DA) */ -static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr) -{ - u8 *raw = (u8 *) hdr; - u8 to_ds = (*(raw+1)) & 1; /* get the TODS bit */ - - if (to_ds) - return hdr->addr3; - return hdr->addr1; -} - -static inline int ieee80211_get_morefrag(struct ieee80211_hdr *hdr) -{ - return (le16_to_cpu(hdr->frame_control) & WLAN_FC_MOREFRAG) != 0; -} - -#endif /* IEEE80211_H */ |