| /* |
| * mac80211 <-> driver interface |
| * |
| * Copyright 2002-2005, Devicescape Software, Inc. |
| * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> |
| * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> |
| * |
| * 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 MAC80211_H |
| #define MAC80211_H |
| |
| #include <linux/kernel.h> |
| #include <linux/if_ether.h> |
| #include <linux/skbuff.h> |
| #include <linux/wireless.h> |
| #include <linux/device.h> |
| #include <linux/ieee80211.h> |
| #include <net/wireless.h> |
| #include <net/cfg80211.h> |
| |
| /* Note! Only ieee80211_tx_status_irqsafe() and ieee80211_rx_irqsafe() 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. |
| */ |
| |
| #define IEEE80211_CHAN_W_SCAN 0x00000001 |
| #define IEEE80211_CHAN_W_ACTIVE_SCAN 0x00000002 |
| #define IEEE80211_CHAN_W_IBSS 0x00000004 |
| |
| /* 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. If a device has |
| * a default regulatory domain, IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED |
| * can be set to let the driver configure all fields */ |
| 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; |
| }; |
| |
| #define IEEE80211_RATE_ERP 0x00000001 |
| #define IEEE80211_RATE_BASIC 0x00000002 |
| #define IEEE80211_RATE_PREAMBLE2 0x00000004 |
| #define IEEE80211_RATE_SUPPORTED 0x00000010 |
| #define IEEE80211_RATE_OFDM 0x00000020 |
| #define IEEE80211_RATE_CCK 0x00000040 |
| #define IEEE80211_RATE_MANDATORY 0x00000100 |
| |
| #define IEEE80211_RATE_CCK_2 (IEEE80211_RATE_CCK | IEEE80211_RATE_PREAMBLE2) |
| #define IEEE80211_RATE_MODULATION(f) \ |
| (f & (IEEE80211_RATE_CCK | IEEE80211_RATE_OFDM)) |
| |
| /* Low-level driver should set PREAMBLE2, OFDM and CCK flags. |
| * BASIC, SUPPORTED, ERP, and MANDATORY flags are set in 80211.o based on the |
| * configuration. */ |
| 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 */ |
| }; |
| |
| /** |
| * enum ieee80211_phymode - PHY modes |
| * |
| * @MODE_IEEE80211A: 5GHz as defined by 802.11a/802.11h |
| * @MODE_IEEE80211B: 2.4 GHz as defined by 802.11b |
| * @MODE_IEEE80211G: 2.4 GHz as defined by 802.11g (with OFDM), |
| * backwards compatible with 11b mode |
| * @NUM_IEEE80211_MODES: internal |
| */ |
| enum ieee80211_phymode { |
| MODE_IEEE80211A, |
| MODE_IEEE80211B, |
| MODE_IEEE80211G, |
| |
| /* keep last */ |
| NUM_IEEE80211_MODES |
| }; |
| |
| /** |
| * struct ieee80211_hw_mode - PHY mode definition |
| * |
| * This structure describes the capabilities supported by the device |
| * in a single PHY mode. |
| * |
| * @mode: the PHY mode for this definition |
| * @num_channels: number of supported channels |
| * @channels: pointer to array of supported channels |
| * @num_rates: number of supported bitrates |
| * @rates: pointer to array of supported bitrates |
| * @list: internal |
| */ |
| struct ieee80211_hw_mode { |
| struct list_head list; |
| struct ieee80211_channel *channels; |
| struct ieee80211_rate *rates; |
| enum ieee80211_phymode mode; |
| int num_channels; |
| int num_rates; |
| }; |
| |
| /** |
| * struct ieee80211_tx_queue_params - transmit queue configuration |
| * |
| * The information provided in this structure is required for QoS |
| * transmit queue configuration. |
| * |
| * @aifs: arbitration interface space [0..255, -1: use default] |
| * @cw_min: minimum contention window [will be a value of the form |
| * 2^n-1 in the range 1..1023; 0: use default] |
| * @cw_max: maximum contention window [like @cw_min] |
| * @burst_time: maximum burst time in units of 0.1ms, 0 meaning disabled |
| */ |
| struct ieee80211_tx_queue_params { |
| int aifs; |
| int cw_min; |
| int cw_max; |
| int burst_time; |
| }; |
| |
| /** |
| * struct ieee80211_tx_queue_stats_data - transmit queue statistics |
| * |
| * @len: number of packets in queue |
| * @limit: queue length limit |
| * @count: number of frames sent |
| */ |
| struct ieee80211_tx_queue_stats_data { |
| unsigned int len; |
| unsigned int limit; |
| unsigned int count; |
| }; |
| |
| /** |
| * enum ieee80211_tx_queue - transmit queue number |
| * |
| * These constants are used with some callbacks that take a |
| * queue number to set parameters for a queue. |
| * |
| * @IEEE80211_TX_QUEUE_DATA0: data queue 0 |
| * @IEEE80211_TX_QUEUE_DATA1: data queue 1 |
| * @IEEE80211_TX_QUEUE_DATA2: data queue 2 |
| * @IEEE80211_TX_QUEUE_DATA3: data queue 3 |
| * @IEEE80211_TX_QUEUE_DATA4: data queue 4 |
| * @IEEE80211_TX_QUEUE_SVP: ?? |
| * @NUM_TX_DATA_QUEUES: number of data queues |
| * @IEEE80211_TX_QUEUE_AFTER_BEACON: transmit queue for frames to be |
| * sent after a beacon |
| * @IEEE80211_TX_QUEUE_BEACON: transmit queue for beacon frames |
| */ |
| enum ieee80211_tx_queue { |
| IEEE80211_TX_QUEUE_DATA0, |
| IEEE80211_TX_QUEUE_DATA1, |
| IEEE80211_TX_QUEUE_DATA2, |
| IEEE80211_TX_QUEUE_DATA3, |
| IEEE80211_TX_QUEUE_DATA4, |
| IEEE80211_TX_QUEUE_SVP, |
| |
| NUM_TX_DATA_QUEUES, |
| |
| /* due to stupidity in the sub-ioctl userspace interface, the items in |
| * this struct need to have fixed values. As soon as it is removed, we can |
| * fix these entries. */ |
| IEEE80211_TX_QUEUE_AFTER_BEACON = 6, |
| IEEE80211_TX_QUEUE_BEACON = 7 |
| }; |
| |
| struct ieee80211_tx_queue_stats { |
| struct ieee80211_tx_queue_stats_data data[NUM_TX_DATA_QUEUES]; |
| }; |
| |
| 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 for configuring |
| * the hardware to use given values (depending on what is supported). */ |
| |
| struct ieee80211_tx_control { |
| 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) */ |
| |
| #define IEEE80211_TXCTL_REQ_TX_STATUS (1<<0)/* request TX status callback for |
| * this frame */ |
| #define IEEE80211_TXCTL_DO_NOT_ENCRYPT (1<<1) /* send this frame without |
| * encryption; e.g., for EAPOL |
| * frames */ |
| #define IEEE80211_TXCTL_USE_RTS_CTS (1<<2) /* use RTS-CTS before sending |
| * frame */ |
| #define IEEE80211_TXCTL_USE_CTS_PROTECT (1<<3) /* use CTS protection for the |
| * frame (e.g., for combined |
| * 802.11g / 802.11b networks) */ |
| #define IEEE80211_TXCTL_NO_ACK (1<<4) /* tell the low level not to |
| * wait for an ack */ |
| #define IEEE80211_TXCTL_RATE_CTRL_PROBE (1<<5) |
| #define IEEE80211_TXCTL_CLEAR_DST_MASK (1<<6) |
| #define IEEE80211_TXCTL_REQUEUE (1<<7) |
| #define IEEE80211_TXCTL_FIRST_FRAGMENT (1<<8) /* this is a first fragment of |
| * the frame */ |
| #define IEEE80211_TXCTL_LONG_RETRY_LIMIT (1<<10) /* this frame should be send |
| * using the through |
| * set_retry_limit configured |
| * long retry value */ |
| u32 flags; /* tx control flags defined |
| * above */ |
| u8 key_idx; /* keyidx from hw->set_key(), undefined if |
| * IEEE80211_TXCTL_DO_NOT_ENCRYPT is set */ |
| u8 retry_limit; /* 1 = only first attempt, 2 = one retry, .. |
| * This could be used when set_retry_limit |
| * is not implemented by the driver */ |
| u8 power_level; /* per-packet transmit power level, in dBm */ |
| u8 antenna_sel_tx; /* 0 = default/diversity, 1 = Ant0, 2 = Ant1 */ |
| u8 icv_len; /* length of the ICV/MIC field in octets */ |
| u8 iv_len; /* length of the IV field in octets */ |
| u8 queue; /* hardware queue to use for this frame; |
| * 0 = highest, hw->queues-1 = lowest */ |
| struct ieee80211_rate *rate; /* internal 80211.o rate */ |
| struct ieee80211_rate *rts_rate; /* internal 80211.o rate |
| * for RTS/CTS */ |
| 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 */ |
| int type; /* internal */ |
| int ifindex; /* internal */ |
| }; |
| |
| |
| /** |
| * enum mac80211_rx_flags - receive flags |
| * |
| * These flags are used with the @flag member of &struct ieee80211_rx_status. |
| * @RX_FLAG_MMIC_ERROR: Michael MIC error was reported on this frame. |
| * Use together with %RX_FLAG_MMIC_STRIPPED. |
| * @RX_FLAG_DECRYPTED: This frame was decrypted in hardware. |
| * @RX_FLAG_RADIOTAP: This frame starts with a radiotap header. |
| * @RX_FLAG_MMIC_STRIPPED: the Michael MIC is stripped off this frame, |
| * verification has been done by the hardware. |
| * @RX_FLAG_IV_STRIPPED: The IV/ICV are stripped from this frame. |
| * If this flag is set, the stack cannot do any replay detection |
| * hence the driver or hardware will have to do that. |
| * @RX_FLAG_FAILED_FCS_CRC: Set this flag if the FCS check failed on |
| * the frame. |
| * @RX_FLAG_FAILED_PLCP_CRC: Set this flag if the PCLP check failed on |
| * the frame. |
| */ |
| enum mac80211_rx_flags { |
| RX_FLAG_MMIC_ERROR = 1<<0, |
| RX_FLAG_DECRYPTED = 1<<1, |
| RX_FLAG_RADIOTAP = 1<<2, |
| RX_FLAG_MMIC_STRIPPED = 1<<3, |
| RX_FLAG_IV_STRIPPED = 1<<4, |
| RX_FLAG_FAILED_FCS_CRC = 1<<5, |
| RX_FLAG_FAILED_PLCP_CRC = 1<<6, |
| }; |
| |
| /** |
| * struct ieee80211_rx_status - receive status |
| * |
| * The low-level driver should provide this information (the subset |
| * supported by hardware) to the 802.11 code with each received |
| * frame. |
| * @mactime: MAC timestamp as defined by 802.11 |
| * @freq: frequency the radio was tuned to when receiving this frame, in MHz |
| * @channel: channel the radio was tuned to |
| * @phymode: active PHY mode |
| * @ssi: signal strength when receiving this frame |
| * @signal: used as 'qual' in statistics reporting |
| * @noise: PHY noise when receiving this frame |
| * @antenna: antenna used |
| * @rate: data rate |
| * @flag: %RX_FLAG_* |
| */ |
| struct ieee80211_rx_status { |
| u64 mactime; |
| int freq; |
| int channel; |
| enum ieee80211_phymode phymode; |
| int ssi; |
| int signal; |
| int noise; |
| int antenna; |
| int rate; |
| int flag; |
| }; |
| |
| /** |
| * enum ieee80211_tx_status_flags - transmit status flags |
| * |
| * Status flags to indicate various transmit conditions. |
| * |
| * @IEEE80211_TX_STATUS_TX_FILTERED: The frame was not transmitted |
| * because the destination STA was in powersave mode. |
| * |
| * @IEEE80211_TX_STATUS_ACK: Frame was acknowledged |
| */ |
| enum ieee80211_tx_status_flags { |
| IEEE80211_TX_STATUS_TX_FILTERED = 1<<0, |
| IEEE80211_TX_STATUS_ACK = 1<<1, |
| }; |
| |
| /** |
| * struct ieee80211_tx_status - transmit status |
| * |
| * As much information as possible should be provided for each transmitted |
| * frame with ieee80211_tx_status(). |
| * |
| * @control: a copy of the &struct ieee80211_tx_control passed to the driver |
| * in the tx() callback. |
| * |
| * @flags: transmit status flags, defined above |
| * |
| * @ack_signal: signal strength of the ACK frame |
| * |
| * @excessive_retries: set to 1 if the frame was retried many times |
| * but not acknowledged |
| * |
| * @retry_count: number of retries |
| * |
| * @queue_length: ?? REMOVE |
| * @queue_number: ?? REMOVE |
| */ |
| struct ieee80211_tx_status { |
| struct ieee80211_tx_control control; |
| u8 flags; |
| bool excessive_retries; |
| u8 retry_count; |
| int ack_signal; |
| int queue_length; |
| int queue_number; |
| }; |
| |
| /** |
| * enum ieee80211_conf_flags - configuration flags |
| * |
| * Flags to define PHY configuration options |
| * |
| * @IEEE80211_CONF_SHORT_SLOT_TIME: use 802.11g short slot time |
| * @IEEE80211_CONF_RADIOTAP: add radiotap header at receive time (if supported) |
| * |
| */ |
| enum ieee80211_conf_flags { |
| IEEE80211_CONF_SHORT_SLOT_TIME = 1<<0, |
| IEEE80211_CONF_RADIOTAP = 1<<1, |
| }; |
| |
| /** |
| * struct ieee80211_conf - configuration of the device |
| * |
| * This struct indicates how the driver shall configure the hardware. |
| * |
| * @radio_enabled: when zero, driver is required to switch off the radio. |
| * TODO make a flag |
| * @channel: IEEE 802.11 channel number |
| * @freq: frequency in MHz |
| * @channel_val: hardware specific channel value for the channel |
| * @phymode: PHY mode to activate (REMOVE) |
| * @chan: channel to switch to, pointer to the channel information |
| * @mode: pointer to mode definition |
| * @regulatory_domain: ?? |
| * @beacon_int: beacon interval (TODO make interface config) |
| * @flags: configuration flags defined above |
| * @power_level: transmit power limit for current regulatory domain in dBm |
| * @antenna_max: maximum antenna gain |
| * @antenna_sel_tx: transmit antenna selection, 0: default/diversity, |
| * 1/2: antenna 0/1 |
| * @antenna_sel_rx: receive antenna selection, like @antenna_sel_tx |
| */ |
| struct ieee80211_conf { |
| int channel; /* IEEE 802.11 channel number */ |
| int freq; /* MHz */ |
| int channel_val; /* hw specific value for the channel */ |
| |
| enum ieee80211_phymode phymode; |
| struct ieee80211_channel *chan; |
| struct ieee80211_hw_mode *mode; |
| unsigned int regulatory_domain; |
| int radio_enabled; |
| |
| int beacon_int; |
| u32 flags; |
| u8 power_level; |
| u8 antenna_max; |
| u8 antenna_sel_tx; |
| u8 antenna_sel_rx; |
| }; |
| |
| /** |
| * enum ieee80211_if_types - types of 802.11 network interfaces |
| * |
| * @IEEE80211_IF_TYPE_AP: interface in AP mode. |
| * @IEEE80211_IF_TYPE_MGMT: special interface for communication with hostap |
| * daemon. Drivers should never see this type. |
| * @IEEE80211_IF_TYPE_STA: interface in STA (client) mode. |
| * @IEEE80211_IF_TYPE_IBSS: interface in IBSS (ad-hoc) mode. |
| * @IEEE80211_IF_TYPE_MNTR: interface in monitor (rfmon) mode. |
| * @IEEE80211_IF_TYPE_WDS: interface in WDS mode. |
| * @IEEE80211_IF_TYPE_VLAN: not used. |
| */ |
| enum ieee80211_if_types { |
| IEEE80211_IF_TYPE_AP = 0x00000000, |
| IEEE80211_IF_TYPE_MGMT = 0x00000001, |
| IEEE80211_IF_TYPE_STA = 0x00000002, |
| IEEE80211_IF_TYPE_IBSS = 0x00000003, |
| IEEE80211_IF_TYPE_MNTR = 0x00000004, |
| IEEE80211_IF_TYPE_WDS = 0x5A580211, |
| IEEE80211_IF_TYPE_VLAN = 0x00080211, |
| }; |
| |
| /** |
| * struct ieee80211_if_init_conf - initial configuration of an interface |
| * |
| * @if_id: internal interface ID. This number has no particular meaning to |
| * drivers and the only allowed usage is to pass it to |
| * ieee80211_beacon_get() and ieee80211_get_buffered_bc() functions. |
| * This field is not valid for monitor interfaces |
| * (interfaces of %IEEE80211_IF_TYPE_MNTR type). |
| * @type: one of &enum ieee80211_if_types constants. Determines the type of |
| * added/removed interface. |
| * @mac_addr: pointer to MAC address of the interface. This pointer is valid |
| * until the interface is removed (i.e. it cannot be used after |
| * remove_interface() callback was called for this interface). |
| * This pointer will be %NULL for monitor interfaces, be careful. |
| * |
| * This structure is used in add_interface() and remove_interface() |
| * callbacks of &struct ieee80211_hw. |
| * |
| * When you allow multiple interfaces to be added to your PHY, take care |
| * that the hardware can actually handle multiple MAC addresses. However, |
| * also take care that when there's no interface left with mac_addr != %NULL |
| * you remove the MAC address from the device to avoid acknowledging packets |
| * in pure monitor mode. |
| */ |
| struct ieee80211_if_init_conf { |
| int if_id; |
| int type; |
| void *mac_addr; |
| }; |
| |
| /** |
| * struct ieee80211_if_conf - configuration of an interface |
| * |
| * @type: type of the interface. This is always the same as was specified in |
| * &struct ieee80211_if_init_conf. The type of an interface never changes |
| * during the life of the interface; this field is present only for |
| * convenience. |
| * @bssid: BSSID of the network we are associated to/creating. |
| * @ssid: used (together with @ssid_len) by drivers for hardware that |
| * generate beacons independently. The pointer is valid only during the |
| * config_interface() call, so copy the value somewhere if you need |
| * it. |
| * @ssid_len: length of the @ssid field. |
| * @generic_elem: used (together with @generic_elem_len) by drivers for |
| * hardware that generate beacons independently. The pointer is valid |
| * only during the config_interface() call, so copy the value somewhere |
| * if you need it. |
| * @generic_elem_len: length of the generic element. |
| * @beacon: beacon template. Valid only if @host_gen_beacon_template in |
| * &struct ieee80211_hw is set. The driver is responsible of freeing |
| * the sk_buff. |
| * @beacon_control: tx_control for the beacon template, this field is only |
| * valid when the @beacon field was set. |
| * |
| * This structure is passed to the config_interface() callback of |
| * &struct ieee80211_hw. |
| */ |
| struct ieee80211_if_conf { |
| int type; |
| u8 *bssid; |
| u8 *ssid; |
| size_t ssid_len; |
| u8 *generic_elem; |
| size_t generic_elem_len; |
| struct sk_buff *beacon; |
| struct ieee80211_tx_control *beacon_control; |
| }; |
| |
| /** |
| * enum ieee80211_key_alg - key algorithm |
| * @ALG_NONE: Unset key algorithm, will never be passed to the driver |
| * @ALG_WEP: WEP40 or WEP104 |
| * @ALG_TKIP: TKIP |
| * @ALG_CCMP: CCMP (AES) |
| */ |
| typedef enum ieee80211_key_alg { |
| ALG_NONE, |
| ALG_WEP, |
| ALG_TKIP, |
| ALG_CCMP, |
| } ieee80211_key_alg; |
| |
| |
| /** |
| * enum ieee80211_key_flags - key flags |
| * |
| * These flags are used for communication about keys between the driver |
| * and mac80211, with the @flags parameter of &struct ieee80211_key_conf. |
| * |
| * @IEEE80211_KEY_FLAG_WMM_STA: Set by mac80211, this flag indicates |
| * that the STA this key will be used with could be using QoS. |
| * @IEEE80211_KEY_FLAG_GENERATE_IV: This flag should be set by the |
| * driver to indicate that it requires IV generation for this |
| * particular key. |
| * @IEEE80211_KEY_FLAG_GENERATE_MMIC: This flag should be set by |
| * the driver for a TKIP key if it requires Michael MIC |
| * generation in software. |
| */ |
| enum ieee80211_key_flags { |
| IEEE80211_KEY_FLAG_WMM_STA = 1<<0, |
| IEEE80211_KEY_FLAG_GENERATE_IV = 1<<1, |
| IEEE80211_KEY_FLAG_GENERATE_MMIC= 1<<2, |
| }; |
| |
| /** |
| * struct ieee80211_key_conf - key information |
| * |
| * This key information is given by mac80211 to the driver by |
| * the set_key() callback in &struct ieee80211_ops. |
| * |
| * @hw_key_idx: To be set by the driver, this is the key index the driver |
| * wants to be given when a frame is transmitted and needs to be |
| * encrypted in hardware. |
| * @alg: The key algorithm. |
| * @flags: key flags, see &enum ieee80211_key_flags. |
| * @keyidx: the key index (0-3) |
| * @keylen: key material length |
| * @key: key material |
| */ |
| struct ieee80211_key_conf { |
| ieee80211_key_alg alg; |
| u8 hw_key_idx; |
| u8 flags; |
| s8 keyidx; |
| u8 keylen; |
| u8 key[0]; |
| }; |
| |
| #define IEEE80211_SEQ_COUNTER_RX 0 |
| #define IEEE80211_SEQ_COUNTER_TX 1 |
| |
| /** |
| * enum set_key_cmd - key command |
| * |
| * Used with the set_key() callback in &struct ieee80211_ops, this |
| * indicates whether a key is being removed or added. |
| * |
| * @SET_KEY: a key is set |
| * @DISABLE_KEY: a key must be disabled |
| */ |
| typedef enum set_key_cmd { |
| SET_KEY, DISABLE_KEY, |
| } set_key_cmd; |
| |
| /** |
| * struct ieee80211_hw - hardware information and state |
| * TODO: move documentation into kernel-doc format |
| */ |
| struct ieee80211_hw { |
| /* points to the cfg80211 wiphy for this piece. Note |
| * that you must fill in the perm_addr and dev fields |
| * of this structure, use the macros provided below. */ |
| struct wiphy *wiphy; |
| |
| /* assigned by mac80211, don't write */ |
| struct ieee80211_conf conf; |
| |
| /* Single thread workqueue available for driver use |
| * Allocated by mac80211 on registration */ |
| struct workqueue_struct *workqueue; |
| |
| /* Pointer to the private area that was |
| * allocated with this struct for you. */ |
| void *priv; |
| |
| /* The rest is information about your hardware */ |
| |
| /* TODO: frame_type 802.11/802.3, sw_encryption requirements */ |
| |
| /* hole at 0 */ |
| |
| /* |
| * The device only needs to be supplied with a beacon template. |
| * If you need the host to generate each beacon then don't use |
| * this flag and use ieee80211_beacon_get(). |
| */ |
| #define IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE (1<<1) |
| |
| /* hole at 2 */ |
| |
| /* Whether RX frames passed to ieee80211_rx() include FCS in the end */ |
| #define IEEE80211_HW_RX_INCLUDES_FCS (1<<3) |
| |
| /* 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 the IEEE 802.11 upper layer to buffer broadcast/multicast |
| * frames when there are power saving stations so that low-level driver |
| * can fetch them with ieee80211_get_buffered_bc(). */ |
| #define IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING (1<<4) |
| |
| /* hole at 5 */ |
| |
| /* hole at 6 */ |
| |
| /* hole at 7 */ |
| |
| /* hole at 8 */ |
| |
| /* Device is capable of performing full monitor mode even during |
| * normal operation. */ |
| #define IEEE80211_HW_MONITOR_DURING_OPER (1<<9) |
| |
| /* Device does not need BSSID filter set to broadcast in order to |
| * receive all probe responses while scanning */ |
| #define IEEE80211_HW_NO_PROBE_FILTERING (1<<10) |
| |
| /* Channels are already configured to the default regulatory domain |
| * specified in the device's EEPROM */ |
| #define IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED (1<<11) |
| |
| u32 flags; /* hardware flags defined above */ |
| |
| /* Set to the size of a needed device specific skb headroom for TX skbs. */ |
| unsigned int extra_tx_headroom; |
| |
| /* This is the time in us to change channels |
| */ |
| int channel_change_time; |
| /* Maximum values for various statistics. |
| * Leave at 0 to indicate no support. Use negative numbers for dBm. */ |
| s8 max_rssi; |
| s8 max_signal; |
| s8 max_noise; |
| |
| /* Number of available hardware TX queues for data packets. |
| * WMM requires at least four queues. */ |
| int queues; |
| }; |
| |
| static inline void SET_IEEE80211_DEV(struct ieee80211_hw *hw, struct device *dev) |
| { |
| set_wiphy_dev(hw->wiphy, dev); |
| } |
| |
| static inline void SET_IEEE80211_PERM_ADDR(struct ieee80211_hw *hw, u8 *addr) |
| { |
| memcpy(hw->wiphy->perm_addr, addr, ETH_ALEN); |
| } |
| |
| /* Configuration block used by the low-level driver to tell the 802.11 code |
| * about supported hardware features and to pass function pointers to callback |
| * functions. */ |
| struct ieee80211_ops { |
| /* 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. |
| * Must be atomic. */ |
| int (*tx)(struct ieee80211_hw *hw, struct sk_buff *skb, |
| struct ieee80211_tx_control *control); |
| |
| /* 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 ieee80211_hw *hw); |
| |
| /* 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 ieee80211_hw *hw); |
| |
| /* Handler for asking a driver if a new interface can be added (or, |
| * more exactly, set UP). If the handler returns zero, the interface |
| * is added. Driver should perform any initialization it needs prior |
| * to returning zero. By returning non-zero addition of the interface |
| * is inhibited. Unless monitor_during_oper is set, it is guaranteed |
| * that monitor interfaces and normal interfaces are mutually |
| * exclusive. If assigned, the open() handler is called after |
| * add_interface() if this is the first device added. The |
| * add_interface() callback has to be assigned because it is the only |
| * way to obtain the requested MAC address for any interface. |
| */ |
| int (*add_interface)(struct ieee80211_hw *hw, |
| struct ieee80211_if_init_conf *conf); |
| |
| /* Notify a driver that an interface is going down. The stop() handler |
| * is called prior to this if this is a last interface. */ |
| void (*remove_interface)(struct ieee80211_hw *hw, |
| struct ieee80211_if_init_conf *conf); |
| |
| /* Handler for configuration requests. IEEE 802.11 code calls this |
| * function to change hardware configuration, e.g., channel. */ |
| int (*config)(struct ieee80211_hw *hw, struct ieee80211_conf *conf); |
| |
| /* Handler for configuration requests related to interfaces (e.g. |
| * BSSID). */ |
| int (*config_interface)(struct ieee80211_hw *hw, |
| int if_id, struct ieee80211_if_conf *conf); |
| |
| /* ieee80211 drivers do not have access to the &struct net_device |
| * that is (are) connected with their device. Hence (and because |
| * we need to combine the multicast lists and flags for multiple |
| * virtual interfaces), they cannot assign set_multicast_list. |
| * The parameters here replace dev->flags and dev->mc_count, |
| * dev->mc_list is replaced by calling ieee80211_get_mc_list_item. |
| * Must be atomic. */ |
| void (*set_multicast_list)(struct ieee80211_hw *hw, |
| unsigned short flags, int mc_count); |
| |
| /* 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. |
| * Must be atomic. */ |
| int (*set_tim)(struct ieee80211_hw *hw, int aid, int set); |
| |
| /* |
| * Set encryption key. |
| * |
| * This is called to enable hardware acceleration of encryption and |
| * decryption. The address will be the broadcast address for default |
| * keys, the other station's hardware address for individual keys or |
| * the zero address for keys that will be used only for transmission. |
| * |
| * The local_address parameter will always be set to our own address, |
| * this is only relevant if you support multiple local addresses. |
| * |
| * When transmitting, the TX control data will use the hw_key_idx |
| * selected by the low-level driver. |
| * |
| * Return 0 if the key is now in use, -EOPNOTSUPP or -ENOSPC if it |
| * couldn't be added; if you return 0 then hw_key_idx must be assigned |
| * to the hardware key index, you are free to use the full u8 range. |
| * |
| * When the cmd is DISABLE_KEY then it must succeed. |
| * |
| * Note that it is permissible to not decrypt a frame even if a key |
| * for it has been uploaded to hardware, the stack will not make any |
| * decision based on whether a key has been uploaded or not but rather |
| * based on the receive flags. |
| * |
| * This callback can sleep, and is only called between add_interface |
| * and remove_interface calls, i.e. while the interface with the |
| * given local_address is enabled. |
| * |
| * The ieee80211_key_conf structure pointed to by the key parameter |
| * is guaranteed to be valid until another call to set_key removes |
| * it, but it can only be used as a cookie to differentiate keys. |
| */ |
| int (*set_key)(struct ieee80211_hw *hw, set_key_cmd cmd, |
| const u8 *local_address, const u8 *address, |
| struct ieee80211_key_conf *key); |
| |
| /* 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. */ |
| int (*set_ieee8021x)(struct ieee80211_hw *hw, 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. |
| * Currently unused. */ |
| int (*set_port_auth)(struct ieee80211_hw *hw, u8 *addr, |
| int authorized); |
| |
| /* Ask the hardware to service the scan request, no need to start |
| * the scan state machine in stack. */ |
| int (*hw_scan)(struct ieee80211_hw *hw, u8 *ssid, size_t len); |
| |
| /* return low-level statistics */ |
| int (*get_stats)(struct ieee80211_hw *hw, |
| struct ieee80211_low_level_stats *stats); |
| |
| /* 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 ieee80211_hw *hw, |
| 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 ieee80211_hw *hw, |
| u8* addr, u8 keyidx, u8 txrx, |
| u32* iv32, u16* iv16); |
| |
| /* Configuration of RTS threshold (if device needs it) */ |
| int (*set_rts_threshold)(struct ieee80211_hw *hw, u32 value); |
| |
| /* Configuration of fragmentation threshold. |
| * Assign this if the device does fragmentation by itself, |
| * if this method is assigned then the stack will not do |
| * fragmentation. */ |
| int (*set_frag_threshold)(struct ieee80211_hw *hw, u32 value); |
| |
| /* Configuration of retry limits (if device needs it) */ |
| int (*set_retry_limit)(struct ieee80211_hw *hw, |
| u32 short_retry, u32 long_retr); |
| |
| /* Number of STAs in STA table notification (NULL = disabled). |
| * Must be atomic. */ |
| void (*sta_table_notification)(struct ieee80211_hw *hw, |
| int num_sta); |
| |
| /* Handle ERP IE change notifications. Must be atomic. */ |
| void (*erp_ie_changed)(struct ieee80211_hw *hw, u8 changes, |
| int cts_protection, int preamble); |
| |
| /* Flags for the erp_ie_changed changes parameter */ |
| #define IEEE80211_ERP_CHANGE_PROTECTION (1<<0) /* protection flag changed */ |
| #define IEEE80211_ERP_CHANGE_PREAMBLE (1<<1) /* barker preamble mode changed */ |
| |
| /* Configure TX queue parameters (EDCF (aifs, cw_min, cw_max), |
| * bursting) for a hardware TX queue. |
| * queue = IEEE80211_TX_QUEUE_*. |
| * Must be atomic. */ |
| int (*conf_tx)(struct ieee80211_hw *hw, 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). |
| * Currently unused. */ |
| int (*get_tx_stats)(struct ieee80211_hw *hw, |
| struct ieee80211_tx_queue_stats *stats); |
| |
| /* 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. |
| * Must be atomic. */ |
| u64 (*get_tsf)(struct ieee80211_hw *hw); |
| |
| /* 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 ieee80211_hw *hw); |
| |
| /* 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 ieee80211_hw *hw, |
| 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 ieee80211_hw *hw); |
| }; |
| |
| /* 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. |
| */ |
| struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, |
| const struct ieee80211_ops *ops); |
| |
| /* 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 except ieee80211_register_hwmode. */ |
| int ieee80211_register_hw(struct ieee80211_hw *hw); |
| |
| /* driver can use this and ieee80211_get_rx_led_name to get the |
| * name of the registered LEDs after ieee80211_register_hw |
| * was called. |
| * This is useful to set the default trigger on the LED class |
| * device that your driver should export for each LED the device |
| * has, that way the default behaviour will be as expected but |
| * the user can still change it/turn off the LED etc. |
| */ |
| #ifdef CONFIG_MAC80211_LEDS |
| extern char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw); |
| extern char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw); |
| #endif |
| static inline char *ieee80211_get_tx_led_name(struct ieee80211_hw *hw) |
| { |
| #ifdef CONFIG_MAC80211_LEDS |
| return __ieee80211_get_tx_led_name(hw); |
| #else |
| return NULL; |
| #endif |
| } |
| |
| static inline char *ieee80211_get_rx_led_name(struct ieee80211_hw *hw) |
| { |
| #ifdef CONFIG_MAC80211_LEDS |
| return __ieee80211_get_rx_led_name(hw); |
| #else |
| return NULL; |
| #endif |
| } |
| |
| /* Register a new hardware PHYMODE capability to the stack. */ |
| int ieee80211_register_hwmode(struct ieee80211_hw *hw, |
| struct ieee80211_hw_mode *mode); |
| |
| /* 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 ieee80211_hw *hw); |
| |
| /* Free everything that was allocated including private data of a driver. */ |
| void ieee80211_free_hw(struct ieee80211_hw *hw); |
| |
| /* 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 ieee80211_hw *hw, struct sk_buff *skb, |
| struct ieee80211_rx_status *status); |
| void ieee80211_rx_irqsafe(struct ieee80211_hw *hw, |
| 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 ieee80211_hw *hw, |
| struct sk_buff *skb, |
| struct ieee80211_tx_status *status); |
| void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw, |
| struct sk_buff *skb, |
| struct ieee80211_tx_status *status); |
| |
| /** |
| * ieee80211_beacon_get - beacon generation function |
| * @hw: pointer obtained from ieee80211_alloc_hw(). |
| * @if_id: interface ID from &struct ieee80211_if_init_conf. |
| * @control: will be filled with information needed to send this beacon. |
| * |
| * 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 ieee80211_hw *hw, |
| int if_id, |
| struct ieee80211_tx_control *control); |
| |
| /** |
| * ieee80211_rts_get - RTS frame generation function |
| * @hw: pointer obtained from ieee80211_alloc_hw(). |
| * @if_id: interface ID from &struct ieee80211_if_init_conf. |
| * @frame: pointer to the frame that is going to be protected by the RTS. |
| * @frame_len: the frame length (in octets). |
| * @frame_txctl: &struct ieee80211_tx_control of the frame. |
| * @rts: The buffer where to store the RTS frame. |
| * |
| * If the RTS frames are generated by the host system (i.e., not in |
| * hardware/firmware), the low-level driver uses this function to receive |
| * the next RTS frame from the 802.11 code. The low-level is responsible |
| * for calling this function before and RTS frame is needed. |
| */ |
| void ieee80211_rts_get(struct ieee80211_hw *hw, int if_id, |
| const void *frame, size_t frame_len, |
| const struct ieee80211_tx_control *frame_txctl, |
| struct ieee80211_rts *rts); |
| |
| /** |
| * ieee80211_rts_duration - Get the duration field for an RTS frame |
| * @hw: pointer obtained from ieee80211_alloc_hw(). |
| * @if_id: interface ID from &struct ieee80211_if_init_conf. |
| * @frame_len: the length of the frame that is going to be protected by the RTS. |
| * @frame_txctl: &struct ieee80211_tx_control of the frame. |
| * |
| * If the RTS is generated in firmware, but the host system must provide |
| * the duration field, the low-level driver uses this function to receive |
| * the duration field value in little-endian byteorder. |
| */ |
| __le16 ieee80211_rts_duration(struct ieee80211_hw *hw, int if_id, |
| size_t frame_len, |
| const struct ieee80211_tx_control *frame_txctl); |
| |
| /** |
| * ieee80211_ctstoself_get - CTS-to-self frame generation function |
| * @hw: pointer obtained from ieee80211_alloc_hw(). |
| * @if_id: interface ID from &struct ieee80211_if_init_conf. |
| * @frame: pointer to the frame that is going to be protected by the CTS-to-self. |
| * @frame_len: the frame length (in octets). |
| * @frame_txctl: &struct ieee80211_tx_control of the frame. |
| * @cts: The buffer where to store the CTS-to-self frame. |
| * |
| * If the CTS-to-self frames are generated by the host system (i.e., not in |
| * hardware/firmware), the low-level driver uses this function to receive |
| * the next CTS-to-self frame from the 802.11 code. The low-level is responsible |
| * for calling this function before and CTS-to-self frame is needed. |
| */ |
| void ieee80211_ctstoself_get(struct ieee80211_hw *hw, int if_id, |
| const void *frame, size_t frame_len, |
| const struct ieee80211_tx_control *frame_txctl, |
| struct ieee80211_cts *cts); |
| |
| /** |
| * ieee80211_ctstoself_duration - Get the duration field for a CTS-to-self frame |
| * @hw: pointer obtained from ieee80211_alloc_hw(). |
| * @if_id: interface ID from &struct ieee80211_if_init_conf. |
| * @frame_len: the length of the frame that is going to be protected by the CTS-to-self. |
| * @frame_txctl: &struct ieee80211_tx_control of the frame. |
| * |
| * If the CTS-to-self is generated in firmware, but the host system must provide |
| * the duration field, the low-level driver uses this function to receive |
| * the duration field value in little-endian byteorder. |
| */ |
| __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, int if_id, |
| size_t frame_len, |
| const struct ieee80211_tx_control *frame_txctl); |
| |
| /** |
| * ieee80211_generic_frame_duration - Calculate the duration field for a frame |
| * @hw: pointer obtained from ieee80211_alloc_hw(). |
| * @if_id: interface ID from &struct ieee80211_if_init_conf. |
| * @frame_len: the length of the frame. |
| * @rate: the rate (in 100kbps) at which the frame is going to be transmitted. |
| * |
| * Calculate the duration field of some generic frame, given its |
| * length and transmission rate (in 100kbps). |
| */ |
| __le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw, int if_id, |
| size_t frame_len, |
| int rate); |
| |
| /** |
| * ieee80211_get_buffered_bc - accessing buffered broadcast and multicast frames |
| * @hw: pointer as obtained from ieee80211_alloc_hw(). |
| * @if_id: interface ID from &struct ieee80211_if_init_conf. |
| * @control: will be filled with information needed to send returned frame. |
| * |
| * 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 ieee80211_hw *hw, int if_id, |
| struct ieee80211_tx_control *control); |
| |
| /* 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(const struct sk_buff *skb); |
| |
| /* Like ieee80211_get_hdrlen_from_skb() but takes a FC in CPU order. */ |
| int ieee80211_get_hdrlen(u16 fc); |
| |
| /** |
| * ieee80211_wake_queue - wake specific queue |
| * @hw: pointer as obtained from ieee80211_alloc_hw(). |
| * @queue: queue number (counted from zero). |
| * |
| * Drivers should use this function instead of netif_wake_queue. |
| */ |
| void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue); |
| |
| /** |
| * ieee80211_stop_queue - stop specific queue |
| * @hw: pointer as obtained from ieee80211_alloc_hw(). |
| * @queue: queue number (counted from zero). |
| * |
| * Drivers should use this function instead of netif_stop_queue. |
| */ |
| void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue); |
| |
| /** |
| * ieee80211_start_queues - start all queues |
| * @hw: pointer to as obtained from ieee80211_alloc_hw(). |
| * |
| * Drivers should use this function instead of netif_start_queue. |
| */ |
| void ieee80211_start_queues(struct ieee80211_hw *hw); |
| |
| /** |
| * ieee80211_stop_queues - stop all queues |
| * @hw: pointer as obtained from ieee80211_alloc_hw(). |
| * |
| * Drivers should use this function instead of netif_stop_queue. |
| */ |
| void ieee80211_stop_queues(struct ieee80211_hw *hw); |
| |
| /** |
| * ieee80211_wake_queues - wake all queues |
| * @hw: pointer as obtained from ieee80211_alloc_hw(). |
| * |
| * Drivers should use this function instead of netif_wake_queue. |
| */ |
| void ieee80211_wake_queues(struct ieee80211_hw *hw); |
| |
| /** |
| * ieee80211_get_mc_list_item - iteration over items in multicast list |
| * @hw: pointer as obtained from ieee80211_alloc_hw(). |
| * @prev: value returned by previous call to ieee80211_get_mc_list_item() or |
| * NULL to start a new iteration. |
| * @ptr: pointer to buffer of void * type for internal usage of |
| * ieee80211_get_mc_list_item(). |
| * |
| * Iterates over items in multicast list of given device. To get the first |
| * item, pass NULL in @prev and in *@ptr. In subsequent calls, pass the |
| * value returned by previous call in @prev. Don't alter *@ptr during |
| * iteration. When there are no more items, NULL is returned. |
| */ |
| struct dev_mc_list * |
| ieee80211_get_mc_list_item(struct ieee80211_hw *hw, |
| struct dev_mc_list *prev, |
| void **ptr); |
| |
| /* called by driver to notify scan status completed */ |
| void ieee80211_scan_completed(struct ieee80211_hw *hw); |
| |
| /* 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) & |
| IEEE80211_FCTL_MOREFRAGS) != 0; |
| } |
| |
| #endif /* MAC80211_H */ |