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ath10k: add spectral scan feature

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Adds the spectral scan feature for ath10k. The spectral scan is triggered by
configuring a mode through a debugfs control file. Samples can be gathered via
another relay debugfs file.

Essentially, to try it out:

ip link set dev wlan0 up
echo background > /sys/kernel/debug/ieee80211/phy0/ath10k/spectral_scan_ctl
echo trigger > /sys/kernel/debug/ieee80211/phy0/ath10k/spectral_scan_ctl
iw dev wlan0 scan
echo disable > /sys/kernel/debug/ieee80211/phy0/ath10k/spectral_scan_ctl
cat /sys/kernel/debug/ieee80211/phy0/ath10k/spectral_scan0 > samples

This feature is still experimental. Based on the original RFC patch of
Sven Eckelmann.

Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Simon Wunderlich
2014-08-02 09:12:54 +03:00
committed by Kalle Valo
parent 95752b759e
commit 855aed1220
10 changed files with 908 additions and 1 deletions
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97
drivers/net/wireless/ath/ath10k/wmi.h
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@@ -2247,6 +2247,7 @@ struct wmi_comb_phyerr_rx_event {
#define PHYERR_TLV_SIG 0xBB
#define PHYERR_TLV_TAG_SEARCH_FFT_REPORT 0xFB
#define PHYERR_TLV_TAG_RADAR_PULSE_SUMMARY 0xF8
#define PHYERR_TLV_TAG_SPECTRAL_SUMMARY_REPORT 0xF9
struct phyerr_radar_report {
__le32 reg0; /* RADAR_REPORT_REG0_* */
@@ -3645,6 +3646,98 @@ struct wmi_vdev_simple_event {
/* unsupported VDEV combination */
#define WMI_INIFIED_VDEV_START_RESPONSE_NOT_SUPPORTED 0x2
/* TODO: please add more comments if you have in-depth information */
struct wmi_vdev_spectral_conf_cmd {
__le32 vdev_id;
/* number of fft samples to send (0 for infinite) */
__le32 scan_count;
__le32 scan_period;
__le32 scan_priority;
/* number of bins in the FFT: 2^(fft_size - bin_scale) */
__le32 scan_fft_size;
__le32 scan_gc_ena;
__le32 scan_restart_ena;
__le32 scan_noise_floor_ref;
__le32 scan_init_delay;
__le32 scan_nb_tone_thr;
__le32 scan_str_bin_thr;
__le32 scan_wb_rpt_mode;
__le32 scan_rssi_rpt_mode;
__le32 scan_rssi_thr;
__le32 scan_pwr_format;
/* rpt_mode: Format of FFT report to software for spectral scan
* triggered FFTs:
* 0: No FFT report (only spectral scan summary report)
* 1: 2-dword summary of metrics for each completed FFT + spectral
* scan summary report
* 2: 2-dword summary of metrics for each completed FFT +
* 1x- oversampled bins(in-band) per FFT + spectral scan summary
* report
* 3: 2-dword summary of metrics for each completed FFT +
* 2x- oversampled bins (all) per FFT + spectral scan summary
*/
__le32 scan_rpt_mode;
__le32 scan_bin_scale;
__le32 scan_dbm_adj;
__le32 scan_chn_mask;
} __packed;
struct wmi_vdev_spectral_conf_arg {
u32 vdev_id;
u32 scan_count;
u32 scan_period;
u32 scan_priority;
u32 scan_fft_size;
u32 scan_gc_ena;
u32 scan_restart_ena;
u32 scan_noise_floor_ref;
u32 scan_init_delay;
u32 scan_nb_tone_thr;
u32 scan_str_bin_thr;
u32 scan_wb_rpt_mode;
u32 scan_rssi_rpt_mode;
u32 scan_rssi_thr;
u32 scan_pwr_format;
u32 scan_rpt_mode;
u32 scan_bin_scale;
u32 scan_dbm_adj;
u32 scan_chn_mask;
};
#define WMI_SPECTRAL_ENABLE_DEFAULT 0
#define WMI_SPECTRAL_COUNT_DEFAULT 0
#define WMI_SPECTRAL_PERIOD_DEFAULT 35
#define WMI_SPECTRAL_PRIORITY_DEFAULT 1
#define WMI_SPECTRAL_FFT_SIZE_DEFAULT 7
#define WMI_SPECTRAL_GC_ENA_DEFAULT 1
#define WMI_SPECTRAL_RESTART_ENA_DEFAULT 0
#define WMI_SPECTRAL_NOISE_FLOOR_REF_DEFAULT -96
#define WMI_SPECTRAL_INIT_DELAY_DEFAULT 80
#define WMI_SPECTRAL_NB_TONE_THR_DEFAULT 12
#define WMI_SPECTRAL_STR_BIN_THR_DEFAULT 8
#define WMI_SPECTRAL_WB_RPT_MODE_DEFAULT 0
#define WMI_SPECTRAL_RSSI_RPT_MODE_DEFAULT 0
#define WMI_SPECTRAL_RSSI_THR_DEFAULT 0xf0
#define WMI_SPECTRAL_PWR_FORMAT_DEFAULT 0
#define WMI_SPECTRAL_RPT_MODE_DEFAULT 2
#define WMI_SPECTRAL_BIN_SCALE_DEFAULT 1
#define WMI_SPECTRAL_DBM_ADJ_DEFAULT 1
#define WMI_SPECTRAL_CHN_MASK_DEFAULT 1
struct wmi_vdev_spectral_enable_cmd {
__le32 vdev_id;
__le32 trigger_cmd;
__le32 enable_cmd;
} __packed;
#define WMI_SPECTRAL_TRIGGER_CMD_TRIGGER 1
#define WMI_SPECTRAL_TRIGGER_CMD_CLEAR 2
#define WMI_SPECTRAL_ENABLE_CMD_ENABLE 1
#define WMI_SPECTRAL_ENABLE_CMD_DISABLE 2
/* Beacon processing related command and event structures */
struct wmi_bcn_tx_hdr {
__le32 vdev_id;
@@ -4517,6 +4610,10 @@ int ath10k_wmi_vdev_set_param(struct ath10k *ar, u32 vdev_id,
u32 param_id, u32 param_value);
int ath10k_wmi_vdev_install_key(struct ath10k *ar,
const struct wmi_vdev_install_key_arg *arg);
int ath10k_wmi_vdev_spectral_conf(struct ath10k *ar,
const struct wmi_vdev_spectral_conf_arg *arg);
int ath10k_wmi_vdev_spectral_enable(struct ath10k *ar, u32 vdev_id, u32 trigger,
u32 enable);
int ath10k_wmi_peer_create(struct ath10k *ar, u32 vdev_id,
const u8 peer_addr[ETH_ALEN]);
int ath10k_wmi_peer_delete(struct ath10k *ar, u32 vdev_id,