tequilaOS/platform_hardware_libhardware_legacy
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am "update rtt.h for 11mc double side RTT"

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merged from goog/mirror-m-wireless-internal-release
03c6b6f update rtt.h for 11mc double side RTT
This commit is contained in:
Vinit Deshpande 2015-03-14 22:10:17 -07:00
commit b2989ee273
1 changed files with 50 additions and 14 deletions
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64
include/hardware_legacy/rtt.h
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@ -1,5 +1,6 @@
#include "wifi_hal.h"
#include "gscan.h"
#ifndef __WIFI_HAL_RTT_H__
#define __WIFI_HAL_RTT_H__
@ -16,6 +17,7 @@ typedef enum {
RTT_STATUS_FAIL_TM_TIMEOUT,
RTT_STATUS_FAIL_AP_ON_DIFF_CHANNEL,
RTT_STATUS_FAIL_NO_CAPABILITY,
RTT_STATUS_FAIL_BUSY_TRY_LATER, //2 side RTT if other side temporarily busy
RTT_STATUS_ABORTED
} wifi_rtt_status;
@ -31,34 +33,54 @@ typedef enum {
/* RTT configuration */
typedef struct {
mac_addr addr; // peer device mac address
wifi_rtt_type type; // optional - rtt type hint. RTT_TYPE_INVALID implies best effort
wifi_rtt_type type; // optional - rtt type hint.
// RTT_TYPE_AUTO implies best effort
wifi_peer_type peer; // optional - peer device hint (STA, P2P, AP)
wifi_channel_info channel; // Required for STA-AP mode, optional for P2P, NBD etc.
byte continuous; // 0 = single shot or 1 = continuous ranging
unsigned interval; // interval of RTT measurement (unit ms) when continuous = true
unsigned num_measurements; // total number of RTT measurements when continuous = true
unsigned num_samples_per_measurement; // num of packets in each RTT measurement
unsigned num_retries_per_measurement; // num of retries if sampling fails
byte multi_burst; // 0 = single burst or 1 = multi burst ranging
unsigned interval; // interval between RTT burst (unit ms).
// Only valid when multi_burst = 1
unsigned num_burst; // total number of RTT bursts when multi_burst = 1
unsigned num_frames_per_burst; // num of frames in each RTT burst
// for single side, measurement result num = frame number
// for 2 side RTT, measurement result num = frame number - 1
unsigned num_retries_per_measurement_frame; // retry time for RTT MEASUREMENT frame
//following fields are only valid for 2 side RTT
unsigned num_retries_per_ftmr;
byte LCI_request; // request LCI or not
byte LCR_request; // request LCR or not
unsigned burst_timeout; // unit of 250 us
byte preamble; // 0- Legacy,1- HT, 2-VHT
byte bw; //5, 10, 20, 40, 80,160
} wifi_rtt_config;
/* RTT results */
/* RTT results*/
typedef struct {
mac_addr addr; // device mac address
unsigned measurement_num; // measurement number in case of continuous ranging
unsigned burst_num; // # of burst inside a multi-burst request
unsigned measurement_number; // total RTT measurement Frames
unsigned success_number; // total successful RTT measurement Frames
byte number_per_burst_peer; //Max number of FTM numbers per burst the other side support,
//11mc only
wifi_rtt_status status; // ranging status
byte retry_after_duration; // in s , 11mc only, only for RTT_STATUS_FAIL_BUSY_TRY_LATER, 1-31s
wifi_rtt_type type; // RTT type
wifi_peer_type peer; // peer device type (P2P, AP)
wifi_channel_info channel; // channel information
wifi_rssi rssi; // rssi in 0.5 dB steps e.g. 143 implies -71.5 dB
wifi_rssi rssi; // average rssi in 0.5 dB steps e.g. 143 implies -71.5 dB
wifi_rssi rssi_spread; // rssi spread in 0.5 dB steps e.g. 5 implies 2.5 dB spread (optional)
wifi_rate tx_rate; // TX rate
wifi_timespan rtt; // round trip time in nanoseconds
wifi_timespan rtt_sd; // rtt standard deviation in nanoseconds
wifi_rate rx_rate; // Rx rate
wifi_timespan rtt; // round trip time in 0.1 nanoseconds
wifi_timespan rtt_sd; // rtt standard deviation in 0.1 nanoseconds
wifi_timespan rtt_spread; // difference between max and min rtt times recorded
int distance; // distance in cm (optional)
int distance_sd; // standard deviation in cm (optional)
int distance_spread; // difference between max and min distance recorded (optional)
wifi_timestamp ts; // time of the measurement (in microseconds since boot)
int burst_duration; // in ms, How long the FW time is to finish one burst measurement
wifi_information_element LCI; // for 11mc only, optional
wifi_information_element LCR; // for 11mc only, optional
} wifi_rtt_result;
/* RTT result callback */
@ -94,11 +116,25 @@ wifi_error wifi_rtt_channel_map_set(wifi_request_id id,
DW interval and will also stop broadcasting NBD ranging attribute in SDF */
wifi_error wifi_rtt_channel_map_clear(wifi_request_id id, wifi_interface_handle iface);
#define PREAMBLE_LEGACY 0x1
#define PREAMBLE_HT 0x2
#define PREAMBLE_VHT 0x4
#define BW_5_SUPPORT 0x1
#define BW_10_SUPPORT 0x2
#define BW_20_SUPPORT 0x4
#define BW_40_SUPPORT 0x8
#define BW_80_SUPPORT 0x10
#define BW_160_SUPPORT 0x20
/* RTT Capabilities */
typedef struct {
byte rtt_one_sided_supported; // if 1-sided rtt data collection is supported
byte rtt_11v_supported; // if 11v rtt data collection is supported
byte rtt_ftm_supported; // if ftm rtt data collection is supported
byte lci_support;
byte lcr_support;
byte preamble_support; //bit mask indicate what preamble is supported
byte bw_support; //bit mask indicate what BW is supported
} wifi_rtt_capabilities;
/* RTT capabilities of the device */