Add IEEE 802.11az support for legacy HAL
Bug: 295619650 Test: Run RTT with WifiRttScan app Change-Id: I22ea32e3845ae3e285ac29be8d5531018cd8c2b3
This commit is contained in:
maheshkkv
Mahesh KKV
parent
d961824689
commit
7ea8202556
2 changed files with 107 additions and 22 deletions
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@ -50,28 +50,34 @@ typedef enum {
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/* RTT Measurement Preamble */
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typedef enum {
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WIFI_RTT_PREAMBLE_LEGACY = 0x1,
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WIFI_RTT_PREAMBLE_HT = 0x2,
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WIFI_RTT_PREAMBLE_VHT = 0x4,
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WIFI_RTT_PREAMBLE_HE = 0x8,
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WIFI_RTT_PREAMBLE_EHT = 0x10,
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} wifi_rtt_preamble;
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WIFI_RTT_PREAMBLE_INVALID = 0x0,
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WIFI_RTT_PREAMBLE_LEGACY = 0x1,
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WIFI_RTT_PREAMBLE_HT = 0x2,
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WIFI_RTT_PREAMBLE_VHT = 0x4,
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WIFI_RTT_PREAMBLE_HE = 0x8,
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WIFI_RTT_PREAMBLE_EHT = 0x10,
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} wifi_rtt_preamble ;
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/* RTT Type */
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typedef enum {
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RTT_TYPE_1_SIDED = 0x1,
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RTT_TYPE_2_SIDED = 0x2,
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RTT_TYPE_1_SIDED = 0x1,
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/* Deprecated. Use RTT_TYPE_2_SIDED_11MC instead. */
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RTT_TYPE_2_SIDED = 0x2,
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RTT_TYPE_2_SIDED_11MC = RTT_TYPE_2_SIDED,
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RTT_TYPE_2_SIDED_11AZ_NTB = 0x3,
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} wifi_rtt_type;
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/* RTT configuration */
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typedef struct {
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mac_addr addr; // peer device mac address
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wifi_rtt_type type; // 1-sided or 2-sided RTT
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wifi_rtt_type type; // 1-sided or 2-sided RTT (11mc and 11az)
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rtt_peer_type peer; // optional - peer device hint (STA, P2P, AP)
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wifi_channel_info channel; // Required for STA-AP mode, optional for P2P, NBD etc.
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unsigned burst_period; // Time interval between bursts (units: 100 ms).
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// Applies to 1-sided and 2-sided RTT multi-burst requests.
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// Range: 0-31, 0: no preference by initiator (2-sided RTT)
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// Note: Applicable for 11mc only.
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unsigned num_burst; // Total number of RTT bursts to be executed. It will be
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// specified in the same way as the parameter "Number of
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// Burst Exponent" found in the FTM frame format. It
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@ -82,6 +88,7 @@ typedef struct {
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// number of RTT results is the following:
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// for 1-sided RTT: max num of RTT results = (2^num_burst)*(num_frames_per_burst)
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// for 2-sided RTT: max num of RTT results = (2^num_burst)*(num_frames_per_burst - 1)
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// Note: Applicable for 11mc only.
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unsigned num_frames_per_burst; // num of frames per burst.
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// Minimum value = 1, Maximum value = 31
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// For 2-sided this equals the number of FTM frames
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@ -89,6 +96,7 @@ typedef struct {
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// equals the number of FTM frames that the
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// initiator will request that the responder send
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// in a single frame.
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// Note: Applicable for 11mc only.
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unsigned num_retries_per_rtt_frame; // number of retries for a failed RTT frame. Applies
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// to 1-sided RTT only. Minimum value = 0, Maximum value = 3
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@ -98,7 +106,7 @@ typedef struct {
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// Minimum value = 0, Maximum value = 3
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byte LCI_request; // 1: request LCI, 0: do not request LCI
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byte LCR_request; // 1: request LCR, 0: do not request LCR
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unsigned burst_duration; // Applies to 1-sided and 2-sided RTT. Valid values will
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unsigned burst_duration; // Applies to 1-sided and 2-sided 11mc RTT. Valid values will
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// be 2-11 and 15 as specified by the 802.11mc std for
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// the FTM parameter burst duration. In a multi-burst
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// request, if responder overrides with larger value,
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@ -110,10 +118,22 @@ typedef struct {
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wifi_rtt_bw bw; // RTT BW to be used in the RTT frames
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} wifi_rtt_config;
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/* RTT configuration v3 (11az support)*/
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typedef struct {
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wifi_rtt_config rtt_config;
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byte ntb_min_measurement_time_millis; // 11az Non-Trigger-based (non-TB) minimum measurement
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// time in milliseconds
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byte ntb_max_measurement_time_millis; // 11az Non-Trigger-based (non-TB) maximum measurement
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// time in milliseconds
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byte tx_ltf_repetition_count; // Multiple transmissions of HE-LTF symbols in an HE
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// Ranging NDP. A value of 1 indicates no repetition.
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} wifi_rtt_config_v3;
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/* RTT results */
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typedef struct {
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mac_addr addr; // device mac address
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unsigned burst_num; // burst number in a multi-burst request
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unsigned burst_num; // burst number in a multi-burst request. Note: Applicable to
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// 1-sided RTT and 2-sided IEEE 802.11mc only.
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unsigned measurement_number; // Total RTT measurement frames attempted
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unsigned success_number; // Total successful RTT measurement frames
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byte number_per_burst_peer; // Maximum number of "FTM frames per burst" supported by
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@ -139,6 +159,7 @@ typedef struct {
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wifi_timespan rtt; // round trip time in picoseconds
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wifi_timespan rtt_sd; // rtt standard deviation in picoseconds
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wifi_timespan rtt_spread; // difference between max and min rtt times recorded in picoseconds
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// Note: Only applicable for IEEE 802.11mc
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int distance_mm; // distance in mm (optional)
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int distance_sd_mm; // standard deviation in mm (optional)
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int distance_spread_mm; // difference between max and min distance recorded in mm (optional)
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@ -146,9 +167,9 @@ typedef struct {
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int burst_duration; // in ms, actual time taken by the FW to finish one burst
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// measurement. Applies to 1-sided and 2-sided RTT.
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int negotiated_burst_num; // Number of bursts allowed by the responder. Applies
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// to 2-sided RTT only.
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wifi_information_element *LCI; // for 11mc only
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wifi_information_element *LCR; // for 11mc only
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// to 2-sided 11mc RTT only.
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wifi_information_element *LCI; // for 11mc and 11az only
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wifi_information_element *LCR; // for 11mc and 11az only
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} wifi_rtt_result;
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/* RTT results version 2 */
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@ -160,21 +181,61 @@ typedef struct {
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// Cap the average close to a specific valid RttBw.
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} wifi_rtt_result_v2;
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/* RTT results v3 (11az support)*/
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typedef struct {
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wifi_rtt_result_v2 rtt_result;
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int tx_ltf_repetition_count; // 11az Transmit LTF repetitions used to get this result.
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int ntb_min_measurement_time_millis; // Minimum non-trigger based (non-TB) dynamic measurement
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// time in milliseconds assigned by the 11az responder.
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int ntb_max_measurement_time_millis; // Maximum non-trigger based (non-TB) dynamic measurement
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// time in milliseconds assigned by the 11az responder.
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} wifi_rtt_result_v3;
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/* RTT result callbacks */
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typedef struct {
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/*
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* This callback is deprecated on Android 14 and onwards.
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* Newer implementations should support on_rtt_results_v2 callback
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* This callback is deprecated on Android 14 and onwards. Newer implementations should support
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* on_rtt_results_v2 callback.
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*/
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void (*on_rtt_results) (wifi_request_id id, unsigned num_results, wifi_rtt_result *rtt_result[]);
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/* Called when vendor implementation supports sending RTT results version 2 */
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void (*on_rtt_results_v2) (wifi_request_id id, unsigned num_results, wifi_rtt_result_v2 *rtt_result_v2[]);
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void (*on_rtt_results) (wifi_request_id id,
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unsigned num_results,
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wifi_rtt_result *rtt_result[]);
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/*
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* Called when vendor implementation supports sending RTT results version 2.
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*
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* Note: This callback is deprecated on Android 15 onwards. Newer implementation should support
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* on_rtt_results_v3.
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*/
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void (*on_rtt_results_v2) (wifi_request_id id,
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unsigned num_results,
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wifi_rtt_result_v2 *rtt_result_v2[]);
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} wifi_rtt_event_handler;
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/* API to request RTT measurement */
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wifi_error wifi_rtt_range_request(wifi_request_id id, wifi_interface_handle iface,
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unsigned num_rtt_config, wifi_rtt_config rtt_config[], wifi_rtt_event_handler handler);
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/* RTT result v3 callback (11az support) */
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typedef struct {
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/*
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* Called when vendor implementation supports sending RTT results version 3 (Added support for
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* 11az ranging)
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*/
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void (*on_rtt_results_v3) (wifi_request_id id,
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unsigned num_results,
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wifi_rtt_result_v3 *rtt_result_v3[]);
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} wifi_rtt_event_handler_v3;
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/* v3 API to request RTT measurement(11az support). */
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wifi_error wifi_rtt_range_request_v3(wifi_request_id id,
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wifi_interface_handle iface,
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unsigned num_rtt_config,
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wifi_rtt_config_v3 rtt_config_v3[],
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wifi_rtt_event_handler_v3 handler);
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/* API to cancel RTT measurements */
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wifi_error wifi_rtt_range_cancel(wifi_request_id id, wifi_interface_handle iface,
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unsigned num_devices, mac_addr addr[]);
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@ -220,16 +281,37 @@ typedef struct {
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byte rtt_one_sided_supported; // if 1-sided rtt data collection is supported
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byte rtt_ftm_supported; // if ftm rtt data collection is supported
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byte lci_support; // if initiator supports LCI request. Applies to 2-sided RTT
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// (applies to both 11mc and 11az).
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byte lcr_support; // if initiator supports LCR request. Applies to 2-sided RTT
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byte preamble_support; // bit mask indicates what preamble is supported by initiator
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byte bw_support; // bit mask indicates what BW is supported by initiator
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// (applies to both 11mc and 11az).
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byte preamble_support; // bit mask indicates what preamble is supported by 11mc
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// initiator
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byte bw_support; // bit mask indicates what BW is supported by 11mc initiator
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byte responder_supported; // if 11mc responder mode is supported
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byte mc_version; // draft 11mc spec version supported by chip. For instance,
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// version 4.0 should be 40 and version 4.3 should be 43 etc.
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} wifi_rtt_capabilities;
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/* RTT capabilities of the device */
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wifi_error wifi_get_rtt_capabilities(wifi_interface_handle iface, wifi_rtt_capabilities *capabilities);
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wifi_error wifi_get_rtt_capabilities(wifi_interface_handle iface,
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wifi_rtt_capabilities *capabilities);
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/* RTT Capabilities v3 (11az support) */
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typedef struct {
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wifi_rtt_capabilities rtt_capab;
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byte az_preamble_support; // bit mask indicates what preamble is supported by the 11az
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// initiator
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byte az_bw_support; // bit mask indicates what BW is supported by 11az initiator
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byte ntb_initiator_supported; // if 11az non-TB initiator is supported
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byte ntb_responder_supported; // if 11az non-TB responder is supported
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byte max_tx_ltf_repetition_count;// maximum HE LTF repetitions the 11az initiator is capable of
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// transmitting in the preamble of I2R NDP
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} wifi_rtt_capabilities_v3;
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/* RTT capabilities v3 of the device (11az support) */
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wifi_error wifi_get_rtt_capabilities_v3(wifi_interface_handle iface,
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wifi_rtt_capabilities_v3 *capabilities);
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/* debugging definitions */
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enum {
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@ -762,9 +762,12 @@ typedef struct {
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wifi_error (* wifi_get_valid_channels)(wifi_interface_handle,int, int, wifi_channel *, int *);
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wifi_error (* wifi_rtt_range_request)(wifi_request_id, wifi_interface_handle, unsigned,
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wifi_rtt_config[], wifi_rtt_event_handler);
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wifi_error (* wifi_rtt_range_request_v3)(wifi_request_id, wifi_interface_handle, unsigned,
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wifi_rtt_config_v3[], wifi_rtt_event_handler_v3);
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wifi_error (* wifi_rtt_range_cancel)(wifi_request_id, wifi_interface_handle, unsigned,
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mac_addr[]);
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wifi_error (* wifi_get_rtt_capabilities)(wifi_interface_handle, wifi_rtt_capabilities *);
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wifi_error (* wifi_get_rtt_capabilities_v3)(wifi_interface_handle, wifi_rtt_capabilities_v3 *);
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wifi_error (* wifi_rtt_get_responder_info)(wifi_interface_handle iface,
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wifi_rtt_responder *responder_info);
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wifi_error (* wifi_enable_responder)(wifi_request_id id, wifi_interface_handle iface,
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