TLDS
[LMAC]

TDLS module. More...

Collaboration diagram for TLDS:

Modules
	TDLS_TASK
	Task responsible for TDLS operations.
Defines
#define	TDLS_PTI_RSP_TOUT_US 5000000
	Peer Traffic Indication Response timeout, in us.
#define	TDLS_KEEP_ALIVE_US 10000000
	Keep-alive time, in us.
#define	TDLS_CHSW_SWITCH_TIME_US 5000
	Time spent to switch channel, in us.
#define	TDLS_CHSW_TX_FRAME_TIME_US 1000
	Time spent to transmit a frame included SIFS, in us.
#define	TDLS_MAX_CHSW_SWITCH_TIME_US 15000
	Max channel switch timeout, in us.
#define	TDLS_CHSW_REQ_DELAY_US 10000
	Delay of Channel Switch Request on TBTT time, in us.
#define	TDLS_KA_RETRIES 2
	Number of keep-alive frames transmitted before considering the TDLS peer unreachable.
#define	TDLS_CHSW_REQ_DELAY_AP_TRAFFIC_US 20000
	Delay of Channel Switch Request when there is traffic with AP, in us.
Functions
static void	tdls_keep_alive_frame_tx_cfm (void *env, uint32_t status)
	Callback function indicating the completion of the QoS Null Frame.
static void	tdls_chsw_null_frame_tx_cfm (void *env, uint32_t status)
	Callback function indicating the completion of the QoS NULL transmission on the off channel.
static void	tdls_chsw_req_tx_cfm (void *env, uint32_t status)
	Callback function indicating the completion of the TDLS Channel Switch Request frame transmission.
static void	tdls_chsw_rsp_tx_cfm (void *env, uint32_t status)
	Callback function indicating the completion of the TDLS Channel Switch Response frame transmission.
static void	tdls_chsw_unsol_rsp_tx_cfm (void *env, uint32_t status)
	Callback function indicating the completion of the unsolicited TDLS Channel Switch Response frame transmission.
static uint16_t	tdls_check_tdls_channel_switch_request (uint8_t frame, uint32_t offset, struct sta_info_tag sta_tdls, uint32_t next_tbtt)
	Handle the reception of a TDLS Channel Switch Request.
static uint32_t	tdls_check_tdls_channel_switch_response (uint8_t frame, uint32_t offset, struct sta_info_tag sta_tdls, struct mac_addr initiator_mac_addr, struct mac_addr responder_mac_addr, uint32_t next_tbtt)
	Handle the reception of a TDLS Channel Switch Response.
static uint32_t	tdls_check_tdls_peer_traffic_response (uint8_t frame, uint32_t offset, struct sta_info_tag sta_tdls, struct mac_addr initiator_mac_addr, struct mac_addr responder_mac_addr)
	Handle a received TDLS Peer Traffic Response.
static void	tdls_chsw_end_evt (void *env)
	Callback called upon end of off-channel period.
static void	tdls_chsw_time_evt (void *env)
	Callback called when considering that the channel switch is done on both sides.
static void	tdls_chsw_timeout_evt (void *env)
	Callback called upon TDLS channel switch timeout timer expiration.
static void	tdls_keep_alive_evt (void *env)
	Callback called upon TDLS keep-alive timer expiration.
static void	tdls_pti_timeout_evt (void *env)
	Callback called upon TDLS Peer Traffic Indication Request timeout expired.
static bool	tdls_check_frame_action (uint8_t frame, struct vif_info_tag vif, uint8_t sta_idx)
	Function checking whether a received frame is a TDLS action frame or not.
static void	tdls_check_peer_ps (uint8_t frame, struct vif_info_tag vif, uint8_t sta_idx)
	This function checks if the received frame is a NULL function indicating that the TDLS peer is going to sleep and informs the host.
void	tdls_chsw_req_evt (void *env)
	Callback called upon TDLS channel switch request timer expiration.
bool	tdls_check_frame (uint8_t frame, struct vif_info_tag vif, uint8_t sta_idx)
	This function processes the received TDLS frames.
void	tdls_send_chan_switch_base_ind (struct chan_ctxt_tag *roc_chan_ctxt)
	TDLS channel switch to base channel indication.
void	tdls_send_peer_ps_ind (struct vif_info_tag *vif, bool ps_on, uint8_t sta_idx)
	TDLS peer power save indication.
void	tdls_add_sta (struct sta_info_tag *sta, bool initiator, bool chsw_allowed)
	Add TDLS station.
void	tdls_del_sta (struct sta_info_tag *sta)
	Del TDLS station.
void	tdls_peer_traffic_ind_tx_cfm (void *env, uint32_t status)
	Callback function indicating the completion of the TDLS Peer Traffic Indication Request frame transmission.
__INLINE uint32_t	tdls_get_dt_us (uint32_t next_tbtt, uint32_t now)
	This function is used to compute the time to the next TBTT.

Detailed Description

TDLS module.

Function Documentation

void tdls_add_sta	(	struct sta_info_tag *	sta,
		bool	initiator,
		bool	chsw_allowed
	)

Add TDLS station.

This function initialises the TDLS station parameters.

Parameters:

`[in]`	sta	Pointer to TDLS station entry
`[in]`	initiator	The STA is the TDLS link initiator
`[in]`	chsw_allowed	TDLS Channel Switch is allowed with this STA

bool tdls_check_frame	(	uint8_t *	frame,
		struct vif_info_tag *	vif,
		uint8_t	sta_idx
	)

This function processes the received TDLS frames.

Parameters:

`[in]`	frame	Pointer to the frame
`[in]`	vif	Pointer to the VIF entry
`[in]`	sta_idx	Index of the TDLS sender station

Returns:: A boolean indicating if the frame is handled internally, or needs to be forwarded to the host.

Referenced by rxl_frame_handle().

static bool tdls_check_frame_action	(	uint8_t *	frame,
		struct vif_info_tag *	vif,
		uint8_t	sta_idx
	)			`[static]`

Function checking whether a received frame is a TDLS action frame or not.

Subsequent functions depending on the action to be performed are then called.

Parameters:

`[in]`	frame	Pointer the TDLS frame
`[in]`	vif	Pointer the VIF entry
`[in]`	sta_idx	Index of the transmitting station

Returns:: Whether the frame shall be uploaded by the RX path or not

Definition at line 696 of file tdls.c.

References mac_chan_op::band, mm_timer_tag::cb, mm_remain_on_channel_req::chan, vif_info_tag::chan_ctxt, chan_roc_req(), chan_ctxt_tag::channel, tdls_info_tag::chsw, tdls_info_tag::chsw_allowed, tdls_info_tag::chsw_end_timer, tdls_info_tag::chsw_initiator, tdls_info_tag::chsw_time, tdls_info_tag::chsw_time_timer, tdls_info_tag::chsw_timeout_timer, CO_OK, co_read16(), co_read32p(), co_read8p(), CPU2HW, mm_remain_on_channel_req::duration_ms, EIV_LEN, mm_timer_tag::env, FRAME_BODY_LLC_H, FRAME_BODY_LLC_L, hal_machw_time_past(), vif_info_tag::index, tdls_info_tag::initiator, INVALID_STA_IDX, IV_LEN, tdls_info_tag::ka_tx_req, ke_state_get(), ke_state_set(), ke_time(), MAC_ACTION_ACTION_OFT, vif_info_tag::mac_addr, sta_info_tag::mac_addr, MAC_ENCAPSULATED_LLC_L_OFT, MAC_ENCAPSULATED_PAYLOAD_OFT, MAC_ENCAPSULATED_PAYLOAD_TYPE_OFT, MAC_FCTRL_DATA_T, MAC_FCTRL_ORDER, MAC_FCTRL_PROTECTEDFRAME, MAC_FCTRL_TYPE_MASK, MAC_HTC_LEN, MAC_QOS_ST_BIT, MAC_QOSCTRL_EOSP, MAC_QOSCTRL_UP_OFT, MAC_SHORT_QOS_MAC_HDR_LEN, MAC_TDLS_ACTION_CATEGORY, MAC_TDLS_ACTION_CHANSW_REQ, MAC_TDLS_ACTION_CHANSW_RSP, MAC_TDLS_ACTION_PEER_TRAFFIC_RSP, mm_timer_clear(), mm_timer_set(), mm_remain_on_channel_req::op_code, PAYLOAD_TYPE_TDLS, mac_chan_op::prim20_freq, PROF_TDLS_CHSW_END_TIMER_CLR, PROF_TDLS_CHSW_REQ_RX_CLR, PROF_TDLS_CHSW_REQ_RX_SET, PROF_TDLS_CHSW_RESP_RX_CLR, PROF_TDLS_CHSW_RESP_RX_SET, PROF_TDLS_CHSW_TIME_TIMER_CLR, PROF_TDLS_CHSW_TIME_TIMER_SET, PROF_TDLS_CHSW_TIMEOUT_TIMER_CLR, PROF_TDLS_SWITCH_TO_BASECH_CLR, PROF_TDLS_SWITCH_TO_BASECH_SET, PROF_TDLS_SWITCH_TO_OFFCH_CLR, PROF_TDLS_SWITCH_TO_OFFCH_SET, sta_info_tag::ps_state, tdls_info_tag::pti_timeout_timer, tdls_info_tag::pti_timer_running, vif_info_tag::sta, sta_info_tab, sta_info_tag::staid, TASK_TDLS, vif_info_tag::tbtt_timer, td_sta_has_traffic(), sta_info_tag::tdls, TDLS_BASE_CHANNEL, TDLS_CHANSW_REQUEST_ACCEPTED, TDLS_CHANSW_REQUEST_DECLINED, tdls_check_tdls_channel_switch_request(), tdls_check_tdls_channel_switch_response(), tdls_check_tdls_peer_traffic_response(), TDLS_CHSW_REQ_RX, TDLS_CHSW_REQ_TX, tdls_chsw_rsp_tx_cfm(), tdls_chsw_time_evt(), tdls_chsw_timeout_evt(), tdls_get_dt_us(), tdls_keep_alive_frame_tx_cfm(), TDLS_OFF_CHANNEL, tdls_send_peer_ps_ind(), TDLS_TRAFFIC_IND_TX, mm_timer_tag::time, TRACE_TDLS, tdls_info_tag::traffic_available, vif_info_tag::tx_power, mac_chan_op::tx_power, txl_frame_send_qosnull_frame(), txl_frame_send_tdls_channel_switch_rsp_frame(), mac_chan_op::type, vif_info_tag::u, and mm_remain_on_channel_req::vif_index.

static void tdls_check_peer_ps	(	uint8_t *	frame,
		struct vif_info_tag *	vif,
		uint8_t	sta_idx
	)			`[static]`

This function checks if the received frame is a NULL function indicating that the TDLS peer is going to sleep and informs the host.

Parameters:

`[in]`	frame	Pointer to the frame
`[in]`	vif	Pointer to the VIF entry
`[in]`	sta_idx	Index of the transmitting STA

Definition at line 969 of file tdls.c.

References mac_hdr::fctl, ke_state_get(), MAC_FCTRL_PWRMGT, MAC_FCTRL_TODS_FROMDS, MAC_QOS_ST_BIT, sta_info_tag::ps_state, sta_info_tab, TASK_TDLS, tdls_chsw_unsol_rsp_tx_cfm(), TDLS_OFF_CHANNEL, tdls_send_peer_ps_ind(), and txl_frame_send_tdls_channel_switch_rsp_frame().

static uint16_t tdls_check_tdls_channel_switch_request	(	uint8_t *	frame,
		uint32_t	offset,
		struct sta_info_tag *	sta_tdls,
		uint32_t	next_tbtt
	)			`[static]`

Handle the reception of a TDLS Channel Switch Request.

Parameters:

`[in]`	frame	Pointer to the received frame
`[in]`	offset	Offset of the encapsulated payload inside the frame buffer
`[in]`	sta_tdls	Pointer to the TDLS station
`[in]`	next_tbtt	Time in us of the next TBTT

Returns:: The status to be put back in the response (TDLS_CHANSW_REQUEST_ACCEPTED or TDLS_CHANSW_REQUEST_DECLINED)

Definition at line 222 of file tdls.c.

References mac_chan_op::band, mac_chan_op::center1_freq, mac_chan_op::center2_freq, tdls_info_tag::chsw, tdls_info_tag::chsw_num, tdls_info_tag::chsw_op_class, tdls_info_tag::chsw_time, tdls_info_tag::chsw_timeout, co_read16p(), co_read8p(), CPU2HW, ke_time(), MAC_ELTID_CHANNEL_SWITCH_TIMING, MAC_ELTID_LINK_IDENTIFIER, MAC_ELTID_SEC_CH_OFFSET, MAC_ELTID_WIDE_BANDWIDTH_CHAN_SWITCH, MAC_INFOELT_CH_SWITCH_TIMING_SWTIME_OFT, MAC_INFOELT_CH_SWITCH_TIMING_SWTOUT_OFT, MAC_INFOELT_SEC_CH_OFFSET_SEC_ABOVE, MAC_INFOELT_SEC_CH_OFFSET_SEC_CH_OFT, MAC_INFOELT_WIDE_BW_CHAN_SWITCH_NEW_CENTER1_OFT, MAC_INFOELT_WIDE_BW_CHAN_SWITCH_NEW_CENTER2_OFT, MAC_INFOELT_WIDE_BW_CHAN_SWITCH_NEW_CW_OFT, PHY_BAND_2G4, PHY_BAND_5G, phy_channel_to_freq(), PHY_CHNL_BW_20, PHY_CHNL_BW_40, mac_chan_op::prim20_freq, sta_info_tag::tdls, TDLS_CHANSW_REQ_IE_CH_SWITCH_TIMING_LEN, TDLS_CHANSW_REQ_IE_LINK_ID_LEN, TDLS_CHANSW_REQ_IE_SEC_CH_OFT_LEN, TDLS_CHANSW_REQ_IES_OFFSET, TDLS_CHANSW_REQ_OP_CLASS, TDLS_CHANSW_REQ_TARGET_CH_OFFSET, TDLS_CHANSW_REQUEST_ACCEPTED, TDLS_CHANSW_REQUEST_DECLINED, TDLS_CHSW_SWITCH_TIME_US, TDLS_CHSW_TX_FRAME_TIME_US, tdls_get_dt_us(), TDLS_MAX_CHSW_SWITCH_TIME_US, TRACE_TDLS, and mac_chan_op::type.

Referenced by tdls_check_frame_action().

static uint32_t tdls_check_tdls_channel_switch_response	(	uint8_t *	frame,
		uint32_t	offset,
		struct sta_info_tag *	sta_tdls,
		struct mac_addr *	initiator_mac_addr,
		struct mac_addr *	responder_mac_addr,
		uint32_t	next_tbtt
	)			`[static]`

Handle the reception of a TDLS Channel Switch Response.

Parameters:

`[in]`	frame	Pointer to the received frame
`[in]`	offset	Offset of the encapsulated payload inside the frame buffer
`[in]`	sta_tdls	Pointer to the TDLS station
`[in]`	initiator_mac_addr	MAC address of the TDLS initiator
`[in]`	responder_mac_addr	MAC address of the TDLS responder
`[in]`	next_tbtt	Time in us of the next TBTT

Returns:: CO_OK if the frame is correct, CO_FAIL otherwise

Definition at line 343 of file tdls.c.

References mac_addr::array, tdls_info_tag::chsw_time, tdls_info_tag::chsw_timeout, CO_BAD_PARAM, CO_FAIL, CO_NOT_FOUND, CO_OK, co_read16p(), co_read8p(), CPU2HW, ke_state_get(), ke_time(), MAC_ADDR_CMP, MAC_ADDR_LEN, MAC_ELTID_CHANNEL_SWITCH_TIMING, MAC_ELTID_LINK_IDENTIFIER, MAC_INFOELT_CH_SWITCH_TIMING_SWTIME_OFT, MAC_INFOELT_CH_SWITCH_TIMING_SWTOUT_OFT, MAC_INFOELT_LINK_ID_INIT_STA_OFT, MAC_INFOELT_LINK_ID_RESP_STA_OFT, TASK_TDLS, sta_info_tag::tdls, TDLS_CHANSW_REQ_IE_CH_SWITCH_TIMING_LEN, TDLS_CHANSW_REQ_IE_LINK_ID_LEN, TDLS_CHANSW_REQUEST_ACCEPTED, TDLS_CHANSW_RSP_IES_OFFSET, TDLS_CHANSW_RSP_STATUS_OFFSET, TDLS_CHSW_REQ_TX, TDLS_CHSW_TX_FRAME_TIME_US, tdls_get_dt_us(), and TRACE_TDLS.

Referenced by tdls_check_frame_action().

static uint32_t tdls_check_tdls_peer_traffic_response	(	uint8_t *	frame,
		uint32_t	offset,
		struct sta_info_tag *	sta_tdls,
		struct mac_addr *	initiator_mac_addr,
		struct mac_addr *	responder_mac_addr
	)			`[static]`

Handle a received TDLS Peer Traffic Response.

Parameters:

`[in]`	frame	Pointer to the received frame
`[in]`	offset	Offset of the encapsulated payload inside the frame buffer
`[in]`	sta_tdls	Pointer to the TDLS station
`[in]`	initiator_mac_addr	MAC address of the TDLS initiator
`[in]`	responder_mac_addr	MAC address of the TDLS responder

Returns:: CO_OK if the frame is correct, CO_FAIL otherwise

Definition at line 433 of file tdls.c.

References mac_addr::array, CO_BAD_PARAM, CO_FAIL, CO_NOT_FOUND, CO_OK, co_read16p(), co_read8p(), CPU2HW, D_CRT, dbg, tdls_info_tag::dialog_token, MAC_ACTION_TOKEN_OFT, MAC_ADDR_CMP, MAC_ADDR_LEN, MAC_ELTID_LINK_IDENTIFIER, MAC_INFOELT_LINK_ID_INIT_STA_OFT, MAC_INFOELT_LINK_ID_RESP_STA_OFT, sta_info_tag::tdls, and TDLS_PEER_TRAFFIC_RSP_IES_OFFSET.

Referenced by tdls_check_frame_action().

static void tdls_chsw_end_evt ( void * env ) [static]

Callback called upon end of off-channel period.

This timer is started as soon as a first frame exchange has occured on the off-channel. Upon this timer expiry an unsolicited TDLS channel switch response is transmitted to indicate to the peer that we are moving back to the base channel.

Parameters:

[in] env Pointer the VIF entry

Definition at line 494 of file tdls.c.

References PROF_TDLS_CHSW_END_TIMER_CLR, tdls_chsw_unsol_rsp_tx_cfm(), and txl_frame_send_tdls_channel_switch_rsp_frame().

Referenced by tdls_chsw_time_evt().

static void tdls_chsw_null_frame_tx_cfm	(	void *	env,
		uint32_t	status
	)			`[static]`

Callback function indicating the completion of the QoS NULL transmission on the off channel.

If this is successful, we move back to the base channel.

Parameters:

`[in]`	env	Pointer to the TDLS STA entry
`[in]`	status	Status of the transmission

Definition at line 108 of file tdls.c.

References tdls_info_tag::chsw_timeout_timer, FRAME_SUCCESSFUL_TX_BIT, sta_info_tag::inst_nbr, mm_timer_clear(), PROF_TDLS_CHSW_TIMEOUT_TIMER_CLR, sta_mgmt_send_postponed_frame(), sta_info_tag::tdls, and vif_info_tab.

Referenced by tdls_chsw_time_evt().

void tdls_chsw_req_evt ( void * env )

Callback called upon TDLS channel switch request timer expiration.

This timer is started when channel switch is enabled and periodically transmits the TDLS Channel Switch Request frame. In case there is traffic with the AP, the transmission of TDLS Channel Switch Request frame is delayed. Next TDLS channel switch request timer time is set to 10 ms after next TBTT.

Parameters:

[in] env Pointer the VIF entry

Referenced by tdls_chan_switch_req_handler().

static void tdls_chsw_req_tx_cfm	(	void *	env,
		uint32_t	status
	)			`[static]`

Callback function indicating the completion of the TDLS Channel Switch Request frame transmission.

Parameters:

`[in]`	env	Pointer to the VIF entry
`[in]`	status	Status of the transmission

Definition at line 133 of file tdls.c.

References FRAME_SUCCESSFUL_TX_BIT, ke_state_set(), TASK_TDLS, and TDLS_BASE_CHANNEL.

static void tdls_chsw_rsp_tx_cfm	(	void *	env,
		uint32_t	status
	)			`[static]`

Callback function indicating the completion of the TDLS Channel Switch Response frame transmission.

Parameters:

`[in]`	env	Pointer to the VIF entry
`[in]`	status	Status of the transmission

Definition at line 151 of file tdls.c.

References mm_remain_on_channel_req::chan, chan_roc_req(), tdls_info_tag::chsw, tdls_info_tag::chsw_time, tdls_info_tag::chsw_time_timer, mm_remain_on_channel_req::duration_ms, FRAME_SUCCESSFUL_TX_BIT, hal_machw_time(), vif_info_tag::index, INVALID_STA_IDX, ke_state_set(), ke_time(), mm_timer_set(), mm_remain_on_channel_req::op_code, PROF_TDLS_CHSW_TIME_TIMER_SET, PROF_TDLS_SWITCH_TO_OFFCH_CLR, PROF_TDLS_SWITCH_TO_OFFCH_SET, vif_info_tag::sta, sta_info_tab, TASK_TDLS, vif_info_tag::tbtt_timer, sta_info_tag::tdls, TDLS_BASE_CHANNEL, tdls_get_dt_us(), TDLS_OFF_CHANNEL, mm_timer_tag::time, vif_info_tag::u, and mm_remain_on_channel_req::vif_index.

Referenced by tdls_check_frame_action().

static void tdls_chsw_time_evt ( void * env ) [static]

Callback called when considering that the channel switch is done on both sides.

This function programs the end of channel switch period timer and send a QoS NULL frame to indicate to the peer our presence on the off-channel.

Parameters:

[in] env Pointer the VIF entry

Definition at line 514 of file tdls.c.

References mm_timer_tag::cb, vif_info_tag::chan_ctxt, tdls_chan_switch_ind::chan_ctxt_index, chan_is_on_channel(), chan_roc_req(), tdls_info_tag::chsw, tdls_info_tag::chsw_end_timer, tdls_info_tag::chsw_timeout, tdls_info_tag::chsw_timeout_timer, CO_OK, mm_timer_tag::env, chan_ctxt_tag::idx, vif_info_tag::index, INVALID_STA_IDX, KE_MSG_ALLOC, ke_msg_send(), ke_state_get(), ke_state_set(), ke_time(), me_sta_bw_nss_max_upd(), mm_timer_clear(), mm_timer_set(), mm_remain_on_channel_req::op_code, PROF_TDLS_CHSW_END_TIMER_CLR, PROF_TDLS_CHSW_END_TIMER_SET, PROF_TDLS_CHSW_NULL_FRAME_TX_CLR, PROF_TDLS_CHSW_NULL_FRAME_TX_SET, PROF_TDLS_CHSW_TIME_TIMER_CLR, PROF_TDLS_CHSW_TIMEOUT_TIMER_SET, PROF_TDLS_SWITCH_TO_BASECH_CLR, PROF_TDLS_SWITCH_TO_BASECH_SET, vif_info_tag::sta, sta_info_tab, sta_info_tag::staid, tdls_chan_switch_ind::status, TASK_TDLS, vif_info_tag::tbtt_timer, sta_info_tag::tdls, TDLS_BASE_CHANNEL, TDLS_CHAN_SWITCH_IND, tdls_chsw_end_evt(), tdls_chsw_null_frame_tx_cfm(), TDLS_OFF_CHANNEL, mm_timer_tag::time, txl_frame_send_qosnull_frame(), mac_chan_op::type, vif_info_tag::u, mm_remain_on_channel_req::vif_index, and tdls_chan_switch_ind::vif_index.

Referenced by tdls_check_frame_action().

static void tdls_chsw_timeout_evt ( void * env ) [static]

Callback called upon TDLS channel switch timeout timer expiration.

This timer is started when channel switch time timer is expired and the switch to the off channel has been done. This function is called only if no successful frame exchange is performed in the timeout timer time: in this case the switch to off channel is cancelled.

Parameters:

[in] env Pointer the VIF entry

Definition at line 593 of file tdls.c.

References chan_roc_req(), tdls_info_tag::chsw_end_timer, tdls_info_tag::chsw_time_timer, vif_info_tag::index, ke_state_set(), mm_timer_clear(), mm_remain_on_channel_req::op_code, PROF_TDLS_CHSW_END_TIMER_CLR, PROF_TDLS_CHSW_TIME_TIMER_CLR, PROF_TDLS_CHSW_TIMEOUT_TIMER_CLR, PROF_TDLS_SWITCH_TO_BASECH_CLR, PROF_TDLS_SWITCH_TO_BASECH_SET, vif_info_tag::sta, sta_info_tab, TASK_TDLS, sta_info_tag::tdls, TDLS_BASE_CHANNEL, vif_info_tag::u, and mm_remain_on_channel_req::vif_index.

Referenced by tdls_check_frame_action().

static void tdls_chsw_unsol_rsp_tx_cfm	(	void *	env,
		uint32_t	status
	)			`[static]`

Callback function indicating the completion of the unsolicited TDLS Channel Switch Response frame transmission.

Parameters:

`[in]`	env	Pointer to the VIF entry
`[in]`	status	Status of the transmission

Definition at line 193 of file tdls.c.

References chan_roc_req(), vif_info_tag::index, ke_state_set(), mm_remain_on_channel_req::op_code, PROF_TDLS_SWITCH_TO_BASECH_CLR, PROF_TDLS_SWITCH_TO_BASECH_SET, TASK_TDLS, TDLS_BASE_CHANNEL, and mm_remain_on_channel_req::vif_index.

Referenced by tdls_check_peer_ps(), and tdls_chsw_end_evt().

void tdls_del_sta ( struct sta_info_tag * sta )

Del TDLS station.

This function clears the TDLS station parameters.

Parameters:

[in] sta Pointer to TDLS station entry

__INLINE uint32_t tdls_get_dt_us	(	uint32_t	next_tbtt,
		uint32_t	now
	)

This function is used to compute the time to the next TBTT.

The actual TBTT time taken into account is actually next_tbtt - TDLS_CHSW_REQ_DELAY_US in order to consider the delay to send the channel switch request.

Parameters:

`[in]`	next_tbtt	Next TBTT time
`[in]`	now	Current time

Returns:: The time to the next TBTT.

Definition at line 95 of file tdls.h.

References TDLS_CHSW_REQ_DELAY_US.

Referenced by tdls_check_frame_action(), tdls_check_tdls_channel_switch_request(), tdls_check_tdls_channel_switch_response(), tdls_chsw_rsp_tx_cfm(), and txl_frame_send_tdls_channel_switch_req_frame().

static void tdls_keep_alive_evt ( void * env ) [static]

Callback called upon TDLS keep-alive timer expiration.

This timer is started when the TDLS link is set up to check if the TDLS station is still reacheable. To check the TDLS peer presence, a QoS Null frame is sent.

Parameters:

[in] env Pointer the TDLS STA entry

Definition at line 626 of file tdls.c.

References CO_OK, tdls_info_tag::dialog_token, tdls_peer_traffic_ind_req::dialog_token, vif_info_tag::index, sta_info_tag::inst_nbr, tdls_info_tag::ka_retries, tdls_info_tag::ka_tx_req, ke_state_set(), ke_time(), tdls_info_tag::keep_alive_timer, tdls_peer_traffic_ind_req::last_sn, tdls_peer_traffic_ind_req::last_tid, sta_info_tag::mac_addr, MAC_ADDR_CPY, mm_timer_set(), tdls_peer_traffic_ind_req::peer_mac_addr, PS_MODE_ON, sta_info_tag::ps_state, tdls_info_tag::pti_timer_running, tdls_peer_traffic_ind_req::sta_idx, sta_info_tag::staid, TASK_TDLS, sta_info_tag::tdls, TDLS_KA_RETRIES, tdls_keep_alive_frame_tx_cfm(), TDLS_KEEP_ALIVE_US, tdls_peer_traffic_ind_tx_cfm(), TDLS_TRAFFIC_IND_TX, txl_frame_send_qosnull_frame(), txl_frame_send_tdls_peer_traffic_ind_frame(), tdls_peer_traffic_ind_req::vif_index, and vif_info_tab.

static void tdls_keep_alive_frame_tx_cfm	(	void *	env,
		uint32_t	status
	)			`[static]`

Callback function indicating the completion of the QoS Null Frame.

Parameters:

`[in]`	env	Pointer to the TDLS station entry
`[in]`	status	Status of the transmission

Definition at line 74 of file tdls.c.

References FRAME_SUCCESSFUL_TX_BIT, sta_info_tag::inst_nbr, tdls_info_tag::ka_retries, mm_send_pktloss_ind(), RATE_CONTROL_STEPS, RC_MAX_NUM_RETRY, sta_info_tag::staid, sta_info_tag::tdls, TDLS_KA_RETRIES, tdls_info_tag::traffic_available, txl_frame_send_qosnull_frame(), and vif_info_tab.

Referenced by tdls_check_frame_action(), and tdls_keep_alive_evt().

void tdls_peer_traffic_ind_tx_cfm	(	void *	env,
		uint32_t	status
	)

Callback function indicating the completion of the TDLS Peer Traffic Indication Request frame transmission.

Parameters:

`[in]`	env	TX callback parameter (in this case, pointer to TDLS peer)
`[in]`	status	status of the transmission

Referenced by tdls_keep_alive_evt(), and tdls_peer_traffic_ind_req_handler().

static void tdls_pti_timeout_evt ( void * env ) [static]

Callback called upon TDLS Peer Traffic Indication Request timeout expired.

This timer is started when the TDLS Peer Traffic Indication Request is sent. If no TDLS Peer Traffic Indication Response is received, the packet loss indication is sent to the host.

Parameters:

[in] env Pointer the TDLS STA entry

Definition at line 676 of file tdls.c.

References sta_info_tag::inst_nbr, mm_send_pktloss_ind(), RATE_CONTROL_STEPS, RC_MAX_NUM_RETRY, sta_info_tag::staid, and vif_info_tab.

void tdls_send_chan_switch_base_ind ( struct chan_ctxt_tag * roc_chan_ctxt )

TDLS channel switch to base channel indication.

This function sends the TDLS_CHAN_SWITCH_BASE_IND message and sets the new state of TDLS task as TDLS_BASE_CHANNEL.

Parameters:

[in] roc_chan_ctxt pointer to the context allocated for the remain of channel operation

Referenced by chan_conn_less_ctxt_end().

void tdls_send_peer_ps_ind	(	struct vif_info_tag *	vif,
		bool	ps_on,
		uint8_t	sta_idx
	)

TDLS peer power save indication.

This function sends the TDLS_PEER_PS_IND message.

Parameters:

`[in]`	vif	pointer to VIF entry
`[in]`	ps_on	Power save status
`[in]`	sta_idx	Index of the TDLS sender station

Referenced by tdls_check_frame_action(), and tdls_check_peer_ps().

TLDS [LMAC]

Modules

Defines

Functions

Detailed Description

Function Documentation

TLDS
[LMAC]