ath9k: Cleanup spectral scan code
* Move definitions to spectral.h * Move processing/debug code to spectral.c Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith Manoharan
John W. Linville
parent
f726ee65ae
commit
f65c082551
@ -11,12 +11,14 @@ ath9k-$(CONFIG_ATH9K_BTCOEX_SUPPORT) += mci.o
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ath9k-$(CONFIG_ATH9K_LEGACY_RATE_CONTROL) += rc.o
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ath9k-$(CONFIG_ATH9K_LEGACY_RATE_CONTROL) += rc.o
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ath9k-$(CONFIG_ATH9K_PCI) += pci.o
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ath9k-$(CONFIG_ATH9K_PCI) += pci.o
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ath9k-$(CONFIG_ATH9K_AHB) += ahb.o
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ath9k-$(CONFIG_ATH9K_AHB) += ahb.o
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ath9k-$(CONFIG_ATH9K_DEBUGFS) += debug.o
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ath9k-$(CONFIG_ATH9K_DFS_DEBUGFS) += dfs_debug.o
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ath9k-$(CONFIG_ATH9K_DFS_DEBUGFS) += dfs_debug.o
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ath9k-$(CONFIG_ATH9K_DFS_CERTIFIED) += dfs.o
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ath9k-$(CONFIG_ATH9K_DFS_CERTIFIED) += dfs.o
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ath9k-$(CONFIG_ATH9K_TX99) += tx99.o
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ath9k-$(CONFIG_ATH9K_TX99) += tx99.o
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ath9k-$(CONFIG_ATH9K_WOW) += wow.o
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ath9k-$(CONFIG_ATH9K_WOW) += wow.o
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ath9k-$(CONFIG_ATH9K_DEBUGFS) += debug.o \
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spectral.o
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obj-$(CONFIG_ATH9K) += ath9k.o
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obj-$(CONFIG_ATH9K) += ath9k.o
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ath9k_hw-y:= \
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ath9k_hw-y:= \
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@ -27,6 +27,7 @@
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#include "common.h"
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#include "common.h"
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#include "mci.h"
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#include "mci.h"
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#include "dfs.h"
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#include "dfs.h"
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#include "spectral.h"
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/*
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/*
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* Header for the ath9k.ko driver core *only* -- hw code nor any other driver
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* Header for the ath9k.ko driver core *only* -- hw code nor any other driver
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@ -716,23 +717,6 @@ struct ath9k_vif_iter_data {
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int nadhocs; /* number of adhoc vifs */
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int nadhocs; /* number of adhoc vifs */
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};
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};
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/* enum spectral_mode:
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*
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* @SPECTRAL_DISABLED: spectral mode is disabled
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* @SPECTRAL_BACKGROUND: hardware sends samples when it is not busy with
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* something else.
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* @SPECTRAL_MANUAL: spectral scan is enabled, triggering for samples
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* is performed manually.
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* @SPECTRAL_CHANSCAN: Like manual, but also triggered when changing channels
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* during a channel scan.
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*/
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enum spectral_mode {
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SPECTRAL_DISABLED = 0,
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SPECTRAL_BACKGROUND,
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SPECTRAL_MANUAL,
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SPECTRAL_CHANSCAN,
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};
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struct ath_softc {
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struct ath_softc {
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struct ieee80211_hw *hw;
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struct ieee80211_hw *hw;
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struct device *dev;
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struct device *dev;
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@ -822,162 +806,6 @@ struct ath_softc {
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#endif
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#endif
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};
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};
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#define SPECTRAL_SCAN_BITMASK 0x10
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/* Radar info packet format, used for DFS and spectral formats. */
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struct ath_radar_info {
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u8 pulse_length_pri;
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u8 pulse_length_ext;
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u8 pulse_bw_info;
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} __packed;
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/* The HT20 spectral data has 4 bytes of additional information at it's end.
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*
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* [7:0]: all bins {max_magnitude[1:0], bitmap_weight[5:0]}
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* [7:0]: all bins max_magnitude[9:2]
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* [7:0]: all bins {max_index[5:0], max_magnitude[11:10]}
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* [3:0]: max_exp (shift amount to size max bin to 8-bit unsigned)
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*/
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struct ath_ht20_mag_info {
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u8 all_bins[3];
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u8 max_exp;
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} __packed;
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#define SPECTRAL_HT20_NUM_BINS 56
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/* WARNING: don't actually use this struct! MAC may vary the amount of
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* data by -1/+2. This struct is for reference only.
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*/
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struct ath_ht20_fft_packet {
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u8 data[SPECTRAL_HT20_NUM_BINS];
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struct ath_ht20_mag_info mag_info;
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struct ath_radar_info radar_info;
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} __packed;
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#define SPECTRAL_HT20_TOTAL_DATA_LEN (sizeof(struct ath_ht20_fft_packet))
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/* Dynamic 20/40 mode:
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*
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* [7:0]: lower bins {max_magnitude[1:0], bitmap_weight[5:0]}
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* [7:0]: lower bins max_magnitude[9:2]
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* [7:0]: lower bins {max_index[5:0], max_magnitude[11:10]}
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* [7:0]: upper bins {max_magnitude[1:0], bitmap_weight[5:0]}
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* [7:0]: upper bins max_magnitude[9:2]
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* [7:0]: upper bins {max_index[5:0], max_magnitude[11:10]}
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* [3:0]: max_exp (shift amount to size max bin to 8-bit unsigned)
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*/
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struct ath_ht20_40_mag_info {
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u8 lower_bins[3];
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u8 upper_bins[3];
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u8 max_exp;
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} __packed;
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#define SPECTRAL_HT20_40_NUM_BINS 128
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/* WARNING: don't actually use this struct! MAC may vary the amount of
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* data. This struct is for reference only.
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*/
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struct ath_ht20_40_fft_packet {
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u8 data[SPECTRAL_HT20_40_NUM_BINS];
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struct ath_ht20_40_mag_info mag_info;
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struct ath_radar_info radar_info;
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} __packed;
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#define SPECTRAL_HT20_40_TOTAL_DATA_LEN (sizeof(struct ath_ht20_40_fft_packet))
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/* grabs the max magnitude from the all/upper/lower bins */
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static inline u16 spectral_max_magnitude(u8 *bins)
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{
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return (bins[0] & 0xc0) >> 6 |
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(bins[1] & 0xff) << 2 |
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(bins[2] & 0x03) << 10;
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}
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/* return the max magnitude from the all/upper/lower bins */
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static inline u8 spectral_max_index(u8 *bins)
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{
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s8 m = (bins[2] & 0xfc) >> 2;
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/* TODO: this still doesn't always report the right values ... */
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if (m > 32)
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m |= 0xe0;
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else
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m &= ~0xe0;
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return m + 29;
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}
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/* return the bitmap weight from the all/upper/lower bins */
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static inline u8 spectral_bitmap_weight(u8 *bins)
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{
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return bins[0] & 0x3f;
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}
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/* FFT sample format given to userspace via debugfs.
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*
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* Please keep the type/length at the front position and change
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* other fields after adding another sample type
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*
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* TODO: this might need rework when switching to nl80211-based
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* interface.
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*/
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enum ath_fft_sample_type {
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ATH_FFT_SAMPLE_HT20 = 1,
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ATH_FFT_SAMPLE_HT20_40,
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};
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struct fft_sample_tlv {
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u8 type; /* see ath_fft_sample */
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__be16 length;
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/* type dependent data follows */
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} __packed;
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struct fft_sample_ht20 {
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struct fft_sample_tlv tlv;
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u8 max_exp;
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__be16 freq;
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s8 rssi;
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s8 noise;
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__be16 max_magnitude;
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u8 max_index;
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u8 bitmap_weight;
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__be64 tsf;
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u8 data[SPECTRAL_HT20_NUM_BINS];
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} __packed;
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struct fft_sample_ht20_40 {
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struct fft_sample_tlv tlv;
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u8 channel_type;
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__be16 freq;
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s8 lower_rssi;
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s8 upper_rssi;
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__be64 tsf;
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s8 lower_noise;
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s8 upper_noise;
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__be16 lower_max_magnitude;
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__be16 upper_max_magnitude;
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u8 lower_max_index;
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u8 upper_max_index;
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u8 lower_bitmap_weight;
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u8 upper_bitmap_weight;
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u8 max_exp;
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u8 data[SPECTRAL_HT20_40_NUM_BINS];
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} __packed;
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/********/
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/********/
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/* TX99 */
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/* TX99 */
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/********/
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/********/
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@ -1022,11 +850,6 @@ void ath9k_deinit_device(struct ath_softc *sc);
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void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw);
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void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw);
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void ath9k_reload_chainmask_settings(struct ath_softc *sc);
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void ath9k_reload_chainmask_settings(struct ath_softc *sc);
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void ath9k_spectral_scan_trigger(struct ieee80211_hw *hw);
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int ath9k_spectral_scan_config(struct ieee80211_hw *hw,
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enum spectral_mode spectral_mode);
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#ifdef CONFIG_ATH9K_PCI
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#ifdef CONFIG_ATH9K_PCI
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int ath_pci_init(void);
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int ath_pci_init(void);
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void ath_pci_exit(void);
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void ath_pci_exit(void);
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@ -17,7 +17,6 @@
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#include <linux/slab.h>
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#include <linux/slab.h>
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#include <linux/vmalloc.h>
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#include <linux/vmalloc.h>
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#include <linux/export.h>
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#include <linux/export.h>
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#include <linux/relay.h>
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#include <asm/unaligned.h>
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#include <asm/unaligned.h>
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#include "ath9k.h"
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#include "ath9k.h"
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@ -1016,293 +1015,6 @@ static const struct file_operations fops_recv = {
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.llseek = default_llseek,
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.llseek = default_llseek,
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};
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};
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static ssize_t read_file_spec_scan_ctl(struct file *file, char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath_softc *sc = file->private_data;
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char *mode = "";
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unsigned int len;
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switch (sc->spectral_mode) {
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case SPECTRAL_DISABLED:
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mode = "disable";
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break;
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case SPECTRAL_BACKGROUND:
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mode = "background";
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break;
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case SPECTRAL_CHANSCAN:
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mode = "chanscan";
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break;
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case SPECTRAL_MANUAL:
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mode = "manual";
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break;
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}
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len = strlen(mode);
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return simple_read_from_buffer(user_buf, count, ppos, mode, len);
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}
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static ssize_t write_file_spec_scan_ctl(struct file *file,
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const char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath_softc *sc = file->private_data;
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struct ath_common *common = ath9k_hw_common(sc->sc_ah);
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char buf[32];
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ssize_t len;
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if (config_enabled(CONFIG_ATH9K_TX99))
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return -EOPNOTSUPP;
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len = min(count, sizeof(buf) - 1);
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if (copy_from_user(buf, user_buf, len))
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return -EFAULT;
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buf[len] = '\0';
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if (strncmp("trigger", buf, 7) == 0) {
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ath9k_spectral_scan_trigger(sc->hw);
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} else if (strncmp("background", buf, 9) == 0) {
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ath9k_spectral_scan_config(sc->hw, SPECTRAL_BACKGROUND);
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ath_dbg(common, CONFIG, "spectral scan: background mode enabled\n");
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} else if (strncmp("chanscan", buf, 8) == 0) {
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ath9k_spectral_scan_config(sc->hw, SPECTRAL_CHANSCAN);
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ath_dbg(common, CONFIG, "spectral scan: channel scan mode enabled\n");
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} else if (strncmp("manual", buf, 6) == 0) {
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ath9k_spectral_scan_config(sc->hw, SPECTRAL_MANUAL);
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ath_dbg(common, CONFIG, "spectral scan: manual mode enabled\n");
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} else if (strncmp("disable", buf, 7) == 0) {
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ath9k_spectral_scan_config(sc->hw, SPECTRAL_DISABLED);
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ath_dbg(common, CONFIG, "spectral scan: disabled\n");
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} else {
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return -EINVAL;
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}
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return count;
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}
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static const struct file_operations fops_spec_scan_ctl = {
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.read = read_file_spec_scan_ctl,
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.write = write_file_spec_scan_ctl,
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.open = simple_open,
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.owner = THIS_MODULE,
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.llseek = default_llseek,
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};
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static ssize_t read_file_spectral_short_repeat(struct file *file,
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char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath_softc *sc = file->private_data;
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char buf[32];
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unsigned int len;
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len = sprintf(buf, "%d\n", sc->spec_config.short_repeat);
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return simple_read_from_buffer(user_buf, count, ppos, buf, len);
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}
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static ssize_t write_file_spectral_short_repeat(struct file *file,
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const char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath_softc *sc = file->private_data;
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unsigned long val;
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char buf[32];
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ssize_t len;
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len = min(count, sizeof(buf) - 1);
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if (copy_from_user(buf, user_buf, len))
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return -EFAULT;
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buf[len] = '\0';
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if (kstrtoul(buf, 0, &val))
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return -EINVAL;
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if (val < 0 || val > 1)
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return -EINVAL;
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sc->spec_config.short_repeat = val;
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return count;
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}
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static const struct file_operations fops_spectral_short_repeat = {
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.read = read_file_spectral_short_repeat,
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.write = write_file_spectral_short_repeat,
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.open = simple_open,
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.owner = THIS_MODULE,
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.llseek = default_llseek,
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};
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static ssize_t read_file_spectral_count(struct file *file,
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char __user *user_buf,
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size_t count, loff_t *ppos)
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||||||
{
|
|
||||||
struct ath_softc *sc = file->private_data;
|
|
||||||
char buf[32];
|
|
||||||
unsigned int len;
|
|
||||||
|
|
||||||
len = sprintf(buf, "%d\n", sc->spec_config.count);
|
|
||||||
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
|
|
||||||
}
|
|
||||||
|
|
||||||
static ssize_t write_file_spectral_count(struct file *file,
|
|
||||||
const char __user *user_buf,
|
|
||||||
size_t count, loff_t *ppos)
|
|
||||||
{
|
|
||||||
struct ath_softc *sc = file->private_data;
|
|
||||||
unsigned long val;
|
|
||||||
char buf[32];
|
|
||||||
ssize_t len;
|
|
||||||
|
|
||||||
len = min(count, sizeof(buf) - 1);
|
|
||||||
if (copy_from_user(buf, user_buf, len))
|
|
||||||
return -EFAULT;
|
|
||||||
|
|
||||||
buf[len] = '\0';
|
|
||||||
if (kstrtoul(buf, 0, &val))
|
|
||||||
return -EINVAL;
|
|
||||||
|
|
||||||
if (val < 0 || val > 255)
|
|
||||||
return -EINVAL;
|
|
||||||
|
|
||||||
sc->spec_config.count = val;
|
|
||||||
return count;
|
|
||||||
}
|
|
||||||
|
|
||||||
static const struct file_operations fops_spectral_count = {
|
|
||||||
.read = read_file_spectral_count,
|
|
||||||
.write = write_file_spectral_count,
|
|
||||||
.open = simple_open,
|
|
||||||
.owner = THIS_MODULE,
|
|
||||||
.llseek = default_llseek,
|
|
||||||
};
|
|
||||||
|
|
||||||
static ssize_t read_file_spectral_period(struct file *file,
|
|
||||||
char __user *user_buf,
|
|
||||||
size_t count, loff_t *ppos)
|
|
||||||
{
|
|
||||||
struct ath_softc *sc = file->private_data;
|
|
||||||
char buf[32];
|
|
||||||
unsigned int len;
|
|
||||||
|
|
||||||
len = sprintf(buf, "%d\n", sc->spec_config.period);
|
|
||||||
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
|
|
||||||
}
|
|
||||||
|
|
||||||
static ssize_t write_file_spectral_period(struct file *file,
|
|
||||||
const char __user *user_buf,
|
|
||||||
size_t count, loff_t *ppos)
|
|
||||||
{
|
|
||||||
struct ath_softc *sc = file->private_data;
|
|
||||||
unsigned long val;
|
|
||||||
char buf[32];
|
|
||||||
ssize_t len;
|
|
||||||
|
|
||||||
len = min(count, sizeof(buf) - 1);
|
|
||||||
if (copy_from_user(buf, user_buf, len))
|
|
||||||
return -EFAULT;
|
|
||||||
|
|
||||||
buf[len] = '\0';
|
|
||||||
if (kstrtoul(buf, 0, &val))
|
|
||||||
return -EINVAL;
|
|
||||||
|
|
||||||
if (val < 0 || val > 255)
|
|
||||||
return -EINVAL;
|
|
||||||
|
|
||||||
sc->spec_config.period = val;
|
|
||||||
return count;
|
|
||||||
}
|
|
||||||
|
|
||||||
static const struct file_operations fops_spectral_period = {
|
|
||||||
.read = read_file_spectral_period,
|
|
||||||
.write = write_file_spectral_period,
|
|
||||||
.open = simple_open,
|
|
||||||
.owner = THIS_MODULE,
|
|
||||||
.llseek = default_llseek,
|
|
||||||
};
|
|
||||||
|
|
||||||
static ssize_t read_file_spectral_fft_period(struct file *file,
|
|
||||||
char __user *user_buf,
|
|
||||||
size_t count, loff_t *ppos)
|
|
||||||
{
|
|
||||||
struct ath_softc *sc = file->private_data;
|
|
||||||
char buf[32];
|
|
||||||
unsigned int len;
|
|
||||||
|
|
||||||
len = sprintf(buf, "%d\n", sc->spec_config.fft_period);
|
|
||||||
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
|
|
||||||
}
|
|
||||||
|
|
||||||
static ssize_t write_file_spectral_fft_period(struct file *file,
|
|
||||||
const char __user *user_buf,
|
|
||||||
size_t count, loff_t *ppos)
|
|
||||||
{
|
|
||||||
struct ath_softc *sc = file->private_data;
|
|
||||||
unsigned long val;
|
|
||||||
char buf[32];
|
|
||||||
ssize_t len;
|
|
||||||
|
|
||||||
len = min(count, sizeof(buf) - 1);
|
|
||||||
if (copy_from_user(buf, user_buf, len))
|
|
||||||
return -EFAULT;
|
|
||||||
|
|
||||||
buf[len] = '\0';
|
|
||||||
if (kstrtoul(buf, 0, &val))
|
|
||||||
return -EINVAL;
|
|
||||||
|
|
||||||
if (val < 0 || val > 15)
|
|
||||||
return -EINVAL;
|
|
||||||
|
|
||||||
sc->spec_config.fft_period = val;
|
|
||||||
return count;
|
|
||||||
}
|
|
||||||
|
|
||||||
static const struct file_operations fops_spectral_fft_period = {
|
|
||||||
.read = read_file_spectral_fft_period,
|
|
||||||
.write = write_file_spectral_fft_period,
|
|
||||||
.open = simple_open,
|
|
||||||
.owner = THIS_MODULE,
|
|
||||||
.llseek = default_llseek,
|
|
||||||
};
|
|
||||||
|
|
||||||
static struct dentry *create_buf_file_handler(const char *filename,
|
|
||||||
struct dentry *parent,
|
|
||||||
umode_t mode,
|
|
||||||
struct rchan_buf *buf,
|
|
||||||
int *is_global)
|
|
||||||
{
|
|
||||||
struct dentry *buf_file;
|
|
||||||
|
|
||||||
buf_file = debugfs_create_file(filename, mode, parent, buf,
|
|
||||||
&relay_file_operations);
|
|
||||||
*is_global = 1;
|
|
||||||
return buf_file;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int remove_buf_file_handler(struct dentry *dentry)
|
|
||||||
{
|
|
||||||
debugfs_remove(dentry);
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
void ath_debug_send_fft_sample(struct ath_softc *sc,
|
|
||||||
struct fft_sample_tlv *fft_sample_tlv)
|
|
||||||
{
|
|
||||||
int length;
|
|
||||||
if (!sc->rfs_chan_spec_scan)
|
|
||||||
return;
|
|
||||||
|
|
||||||
length = __be16_to_cpu(fft_sample_tlv->length) +
|
|
||||||
sizeof(*fft_sample_tlv);
|
|
||||||
relay_write(sc->rfs_chan_spec_scan, fft_sample_tlv, length);
|
|
||||||
}
|
|
||||||
|
|
||||||
static struct rchan_callbacks rfs_spec_scan_cb = {
|
|
||||||
.create_buf_file = create_buf_file_handler,
|
|
||||||
.remove_buf_file = remove_buf_file_handler,
|
|
||||||
};
|
|
||||||
|
|
||||||
|
|
||||||
static ssize_t read_file_regidx(struct file *file, char __user *user_buf,
|
static ssize_t read_file_regidx(struct file *file, char __user *user_buf,
|
||||||
size_t count, loff_t *ppos)
|
size_t count, loff_t *ppos)
|
||||||
{
|
{
|
||||||
@ -1772,10 +1484,7 @@ void ath9k_get_et_stats(struct ieee80211_hw *hw,
|
|||||||
|
|
||||||
void ath9k_deinit_debug(struct ath_softc *sc)
|
void ath9k_deinit_debug(struct ath_softc *sc)
|
||||||
{
|
{
|
||||||
if (config_enabled(CONFIG_ATH9K_DEBUGFS) && sc->rfs_chan_spec_scan) {
|
ath9k_spectral_deinit_debug(sc);
|
||||||
relay_close(sc->rfs_chan_spec_scan);
|
|
||||||
sc->rfs_chan_spec_scan = NULL;
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
|
|
||||||
int ath9k_init_debug(struct ath_hw *ah)
|
int ath9k_init_debug(struct ath_hw *ah)
|
||||||
@ -1795,6 +1504,7 @@ int ath9k_init_debug(struct ath_hw *ah)
|
|||||||
|
|
||||||
ath9k_dfs_init_debug(sc);
|
ath9k_dfs_init_debug(sc);
|
||||||
ath9k_tx99_init_debug(sc);
|
ath9k_tx99_init_debug(sc);
|
||||||
|
ath9k_spectral_init_debug(sc);
|
||||||
|
|
||||||
debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy, sc,
|
debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy, sc,
|
||||||
&fops_dma);
|
&fops_dma);
|
||||||
@ -1841,23 +1551,6 @@ int ath9k_init_debug(struct ath_hw *ah)
|
|||||||
&fops_base_eeprom);
|
&fops_base_eeprom);
|
||||||
debugfs_create_file("modal_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
|
debugfs_create_file("modal_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
|
||||||
&fops_modal_eeprom);
|
&fops_modal_eeprom);
|
||||||
sc->rfs_chan_spec_scan = relay_open("spectral_scan",
|
|
||||||
sc->debug.debugfs_phy,
|
|
||||||
1024, 256, &rfs_spec_scan_cb,
|
|
||||||
NULL);
|
|
||||||
debugfs_create_file("spectral_scan_ctl", S_IRUSR | S_IWUSR,
|
|
||||||
sc->debug.debugfs_phy, sc,
|
|
||||||
&fops_spec_scan_ctl);
|
|
||||||
debugfs_create_file("spectral_short_repeat", S_IRUSR | S_IWUSR,
|
|
||||||
sc->debug.debugfs_phy, sc,
|
|
||||||
&fops_spectral_short_repeat);
|
|
||||||
debugfs_create_file("spectral_count", S_IRUSR | S_IWUSR,
|
|
||||||
sc->debug.debugfs_phy, sc, &fops_spectral_count);
|
|
||||||
debugfs_create_file("spectral_period", S_IRUSR | S_IWUSR,
|
|
||||||
sc->debug.debugfs_phy, sc, &fops_spectral_period);
|
|
||||||
debugfs_create_file("spectral_fft_period", S_IRUSR | S_IWUSR,
|
|
||||||
sc->debug.debugfs_phy, sc,
|
|
||||||
&fops_spectral_fft_period);
|
|
||||||
debugfs_create_u32("gpio_mask", S_IRUSR | S_IWUSR,
|
debugfs_create_u32("gpio_mask", S_IRUSR | S_IWUSR,
|
||||||
sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask);
|
sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask);
|
||||||
debugfs_create_u32("gpio_val", S_IRUSR | S_IWUSR,
|
debugfs_create_u32("gpio_val", S_IRUSR | S_IWUSR,
|
||||||
|
|||||||
@ -292,8 +292,6 @@ void ath9k_sta_add_debugfs(struct ieee80211_hw *hw,
|
|||||||
struct ieee80211_vif *vif,
|
struct ieee80211_vif *vif,
|
||||||
struct ieee80211_sta *sta,
|
struct ieee80211_sta *sta,
|
||||||
struct dentry *dir);
|
struct dentry *dir);
|
||||||
void ath_debug_send_fft_sample(struct ath_softc *sc,
|
|
||||||
struct fft_sample_tlv *fft_sample);
|
|
||||||
void ath9k_debug_stat_ant(struct ath_softc *sc,
|
void ath9k_debug_stat_ant(struct ath_softc *sc,
|
||||||
struct ath_hw_antcomb_conf *div_ant_conf,
|
struct ath_hw_antcomb_conf *div_ant_conf,
|
||||||
int main_rssi_avg, int alt_rssi_avg);
|
int main_rssi_avg, int alt_rssi_avg);
|
||||||
|
|||||||
@ -15,7 +15,6 @@
|
|||||||
*/
|
*/
|
||||||
|
|
||||||
#include <linux/dma-mapping.h>
|
#include <linux/dma-mapping.h>
|
||||||
#include <linux/relay.h>
|
|
||||||
#include "ath9k.h"
|
#include "ath9k.h"
|
||||||
#include "ar9003_mac.h"
|
#include "ar9003_mac.h"
|
||||||
|
|
||||||
@ -975,186 +974,6 @@ static void ath9k_process_tsf(struct ath_rx_status *rs,
|
|||||||
rxs->mactime += 0x100000000ULL;
|
rxs->mactime += 0x100000000ULL;
|
||||||
}
|
}
|
||||||
|
|
||||||
#ifdef CONFIG_ATH9K_DEBUGFS
|
|
||||||
static s8 fix_rssi_inv_only(u8 rssi_val)
|
|
||||||
{
|
|
||||||
if (rssi_val == 128)
|
|
||||||
rssi_val = 0;
|
|
||||||
return (s8) rssi_val;
|
|
||||||
}
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/* returns 1 if this was a spectral frame, even if not handled. */
|
|
||||||
static int ath_process_fft(struct ath_softc *sc, struct ieee80211_hdr *hdr,
|
|
||||||
struct ath_rx_status *rs, u64 tsf)
|
|
||||||
{
|
|
||||||
#ifdef CONFIG_ATH9K_DEBUGFS
|
|
||||||
struct ath_hw *ah = sc->sc_ah;
|
|
||||||
u8 num_bins, *bins, *vdata = (u8 *)hdr;
|
|
||||||
struct fft_sample_ht20 fft_sample_20;
|
|
||||||
struct fft_sample_ht20_40 fft_sample_40;
|
|
||||||
struct fft_sample_tlv *tlv;
|
|
||||||
struct ath_radar_info *radar_info;
|
|
||||||
int len = rs->rs_datalen;
|
|
||||||
int dc_pos;
|
|
||||||
u16 fft_len, length, freq = ah->curchan->chan->center_freq;
|
|
||||||
enum nl80211_channel_type chan_type;
|
|
||||||
|
|
||||||
/* AR9280 and before report via ATH9K_PHYERR_RADAR, AR93xx and newer
|
|
||||||
* via ATH9K_PHYERR_SPECTRAL. Haven't seen ATH9K_PHYERR_FALSE_RADAR_EXT
|
|
||||||
* yet, but this is supposed to be possible as well.
|
|
||||||
*/
|
|
||||||
if (rs->rs_phyerr != ATH9K_PHYERR_RADAR &&
|
|
||||||
rs->rs_phyerr != ATH9K_PHYERR_FALSE_RADAR_EXT &&
|
|
||||||
rs->rs_phyerr != ATH9K_PHYERR_SPECTRAL)
|
|
||||||
return 0;
|
|
||||||
|
|
||||||
/* check if spectral scan bit is set. This does not have to be checked
|
|
||||||
* if received through a SPECTRAL phy error, but shouldn't hurt.
|
|
||||||
*/
|
|
||||||
radar_info = ((struct ath_radar_info *)&vdata[len]) - 1;
|
|
||||||
if (!(radar_info->pulse_bw_info & SPECTRAL_SCAN_BITMASK))
|
|
||||||
return 0;
|
|
||||||
|
|
||||||
chan_type = cfg80211_get_chandef_type(&sc->hw->conf.chandef);
|
|
||||||
if ((chan_type == NL80211_CHAN_HT40MINUS) ||
|
|
||||||
(chan_type == NL80211_CHAN_HT40PLUS)) {
|
|
||||||
fft_len = SPECTRAL_HT20_40_TOTAL_DATA_LEN;
|
|
||||||
num_bins = SPECTRAL_HT20_40_NUM_BINS;
|
|
||||||
bins = (u8 *)fft_sample_40.data;
|
|
||||||
} else {
|
|
||||||
fft_len = SPECTRAL_HT20_TOTAL_DATA_LEN;
|
|
||||||
num_bins = SPECTRAL_HT20_NUM_BINS;
|
|
||||||
bins = (u8 *)fft_sample_20.data;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Variation in the data length is possible and will be fixed later */
|
|
||||||
if ((len > fft_len + 2) || (len < fft_len - 1))
|
|
||||||
return 1;
|
|
||||||
|
|
||||||
switch (len - fft_len) {
|
|
||||||
case 0:
|
|
||||||
/* length correct, nothing to do. */
|
|
||||||
memcpy(bins, vdata, num_bins);
|
|
||||||
break;
|
|
||||||
case -1:
|
|
||||||
/* first byte missing, duplicate it. */
|
|
||||||
memcpy(&bins[1], vdata, num_bins - 1);
|
|
||||||
bins[0] = vdata[0];
|
|
||||||
break;
|
|
||||||
case 2:
|
|
||||||
/* MAC added 2 extra bytes at bin 30 and 32, remove them. */
|
|
||||||
memcpy(bins, vdata, 30);
|
|
||||||
bins[30] = vdata[31];
|
|
||||||
memcpy(&bins[31], &vdata[33], num_bins - 31);
|
|
||||||
break;
|
|
||||||
case 1:
|
|
||||||
/* MAC added 2 extra bytes AND first byte is missing. */
|
|
||||||
bins[0] = vdata[0];
|
|
||||||
memcpy(&bins[1], vdata, 30);
|
|
||||||
bins[31] = vdata[31];
|
|
||||||
memcpy(&bins[32], &vdata[33], num_bins - 32);
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
return 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* DC value (value in the middle) is the blind spot of the spectral
|
|
||||||
* sample and invalid, interpolate it.
|
|
||||||
*/
|
|
||||||
dc_pos = num_bins / 2;
|
|
||||||
bins[dc_pos] = (bins[dc_pos + 1] + bins[dc_pos - 1]) / 2;
|
|
||||||
|
|
||||||
if ((chan_type == NL80211_CHAN_HT40MINUS) ||
|
|
||||||
(chan_type == NL80211_CHAN_HT40PLUS)) {
|
|
||||||
s8 lower_rssi, upper_rssi;
|
|
||||||
s16 ext_nf;
|
|
||||||
u8 lower_max_index, upper_max_index;
|
|
||||||
u8 lower_bitmap_w, upper_bitmap_w;
|
|
||||||
u16 lower_mag, upper_mag;
|
|
||||||
struct ath9k_hw_cal_data *caldata = ah->caldata;
|
|
||||||
struct ath_ht20_40_mag_info *mag_info;
|
|
||||||
|
|
||||||
if (caldata)
|
|
||||||
ext_nf = ath9k_hw_getchan_noise(ah, ah->curchan,
|
|
||||||
caldata->nfCalHist[3].privNF);
|
|
||||||
else
|
|
||||||
ext_nf = ATH_DEFAULT_NOISE_FLOOR;
|
|
||||||
|
|
||||||
length = sizeof(fft_sample_40) - sizeof(struct fft_sample_tlv);
|
|
||||||
fft_sample_40.tlv.type = ATH_FFT_SAMPLE_HT20_40;
|
|
||||||
fft_sample_40.tlv.length = __cpu_to_be16(length);
|
|
||||||
fft_sample_40.freq = __cpu_to_be16(freq);
|
|
||||||
fft_sample_40.channel_type = chan_type;
|
|
||||||
|
|
||||||
if (chan_type == NL80211_CHAN_HT40PLUS) {
|
|
||||||
lower_rssi = fix_rssi_inv_only(rs->rs_rssi_ctl[0]);
|
|
||||||
upper_rssi = fix_rssi_inv_only(rs->rs_rssi_ext[0]);
|
|
||||||
|
|
||||||
fft_sample_40.lower_noise = ah->noise;
|
|
||||||
fft_sample_40.upper_noise = ext_nf;
|
|
||||||
} else {
|
|
||||||
lower_rssi = fix_rssi_inv_only(rs->rs_rssi_ext[0]);
|
|
||||||
upper_rssi = fix_rssi_inv_only(rs->rs_rssi_ctl[0]);
|
|
||||||
|
|
||||||
fft_sample_40.lower_noise = ext_nf;
|
|
||||||
fft_sample_40.upper_noise = ah->noise;
|
|
||||||
}
|
|
||||||
fft_sample_40.lower_rssi = lower_rssi;
|
|
||||||
fft_sample_40.upper_rssi = upper_rssi;
|
|
||||||
|
|
||||||
mag_info = ((struct ath_ht20_40_mag_info *)radar_info) - 1;
|
|
||||||
lower_mag = spectral_max_magnitude(mag_info->lower_bins);
|
|
||||||
upper_mag = spectral_max_magnitude(mag_info->upper_bins);
|
|
||||||
fft_sample_40.lower_max_magnitude = __cpu_to_be16(lower_mag);
|
|
||||||
fft_sample_40.upper_max_magnitude = __cpu_to_be16(upper_mag);
|
|
||||||
lower_max_index = spectral_max_index(mag_info->lower_bins);
|
|
||||||
upper_max_index = spectral_max_index(mag_info->upper_bins);
|
|
||||||
fft_sample_40.lower_max_index = lower_max_index;
|
|
||||||
fft_sample_40.upper_max_index = upper_max_index;
|
|
||||||
lower_bitmap_w = spectral_bitmap_weight(mag_info->lower_bins);
|
|
||||||
upper_bitmap_w = spectral_bitmap_weight(mag_info->upper_bins);
|
|
||||||
fft_sample_40.lower_bitmap_weight = lower_bitmap_w;
|
|
||||||
fft_sample_40.upper_bitmap_weight = upper_bitmap_w;
|
|
||||||
fft_sample_40.max_exp = mag_info->max_exp & 0xf;
|
|
||||||
|
|
||||||
fft_sample_40.tsf = __cpu_to_be64(tsf);
|
|
||||||
|
|
||||||
tlv = (struct fft_sample_tlv *)&fft_sample_40;
|
|
||||||
} else {
|
|
||||||
u8 max_index, bitmap_w;
|
|
||||||
u16 magnitude;
|
|
||||||
struct ath_ht20_mag_info *mag_info;
|
|
||||||
|
|
||||||
length = sizeof(fft_sample_20) - sizeof(struct fft_sample_tlv);
|
|
||||||
fft_sample_20.tlv.type = ATH_FFT_SAMPLE_HT20;
|
|
||||||
fft_sample_20.tlv.length = __cpu_to_be16(length);
|
|
||||||
fft_sample_20.freq = __cpu_to_be16(freq);
|
|
||||||
|
|
||||||
fft_sample_20.rssi = fix_rssi_inv_only(rs->rs_rssi_ctl[0]);
|
|
||||||
fft_sample_20.noise = ah->noise;
|
|
||||||
|
|
||||||
mag_info = ((struct ath_ht20_mag_info *)radar_info) - 1;
|
|
||||||
magnitude = spectral_max_magnitude(mag_info->all_bins);
|
|
||||||
fft_sample_20.max_magnitude = __cpu_to_be16(magnitude);
|
|
||||||
max_index = spectral_max_index(mag_info->all_bins);
|
|
||||||
fft_sample_20.max_index = max_index;
|
|
||||||
bitmap_w = spectral_bitmap_weight(mag_info->all_bins);
|
|
||||||
fft_sample_20.bitmap_weight = bitmap_w;
|
|
||||||
fft_sample_20.max_exp = mag_info->max_exp & 0xf;
|
|
||||||
|
|
||||||
fft_sample_20.tsf = __cpu_to_be64(tsf);
|
|
||||||
|
|
||||||
tlv = (struct fft_sample_tlv *)&fft_sample_20;
|
|
||||||
}
|
|
||||||
|
|
||||||
ath_debug_send_fft_sample(sc, tlv);
|
|
||||||
return 1;
|
|
||||||
#else
|
|
||||||
return 0;
|
|
||||||
#endif
|
|
||||||
}
|
|
||||||
|
|
||||||
static bool ath9k_is_mybeacon(struct ath_softc *sc, struct ieee80211_hdr *hdr)
|
static bool ath9k_is_mybeacon(struct ath_softc *sc, struct ieee80211_hdr *hdr)
|
||||||
{
|
{
|
||||||
struct ath_hw *ah = sc->sc_ah;
|
struct ath_hw *ah = sc->sc_ah;
|
||||||
|
|||||||
543
drivers/net/wireless/ath/ath9k/spectral.c
Normal file
543
drivers/net/wireless/ath/ath9k/spectral.c
Normal file
@ -0,0 +1,543 @@
|
|||||||
|
/*
|
||||||
|
* Copyright (c) 2013 Qualcomm Atheros, Inc.
|
||||||
|
*
|
||||||
|
* Permission to use, copy, modify, and/or distribute this software for any
|
||||||
|
* purpose with or without fee is hereby granted, provided that the above
|
||||||
|
* copyright notice and this permission notice appear in all copies.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||||
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||||
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||||
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||||
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||||
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||||
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <linux/relay.h>
|
||||||
|
#include "ath9k.h"
|
||||||
|
|
||||||
|
static s8 fix_rssi_inv_only(u8 rssi_val)
|
||||||
|
{
|
||||||
|
if (rssi_val == 128)
|
||||||
|
rssi_val = 0;
|
||||||
|
return (s8) rssi_val;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void ath_debug_send_fft_sample(struct ath_softc *sc,
|
||||||
|
struct fft_sample_tlv *fft_sample_tlv)
|
||||||
|
{
|
||||||
|
int length;
|
||||||
|
if (!sc->rfs_chan_spec_scan)
|
||||||
|
return;
|
||||||
|
|
||||||
|
length = __be16_to_cpu(fft_sample_tlv->length) +
|
||||||
|
sizeof(*fft_sample_tlv);
|
||||||
|
relay_write(sc->rfs_chan_spec_scan, fft_sample_tlv, length);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* returns 1 if this was a spectral frame, even if not handled. */
|
||||||
|
int ath_process_fft(struct ath_softc *sc, struct ieee80211_hdr *hdr,
|
||||||
|
struct ath_rx_status *rs, u64 tsf)
|
||||||
|
{
|
||||||
|
struct ath_hw *ah = sc->sc_ah;
|
||||||
|
u8 num_bins, *bins, *vdata = (u8 *)hdr;
|
||||||
|
struct fft_sample_ht20 fft_sample_20;
|
||||||
|
struct fft_sample_ht20_40 fft_sample_40;
|
||||||
|
struct fft_sample_tlv *tlv;
|
||||||
|
struct ath_radar_info *radar_info;
|
||||||
|
int len = rs->rs_datalen;
|
||||||
|
int dc_pos;
|
||||||
|
u16 fft_len, length, freq = ah->curchan->chan->center_freq;
|
||||||
|
enum nl80211_channel_type chan_type;
|
||||||
|
|
||||||
|
/* AR9280 and before report via ATH9K_PHYERR_RADAR, AR93xx and newer
|
||||||
|
* via ATH9K_PHYERR_SPECTRAL. Haven't seen ATH9K_PHYERR_FALSE_RADAR_EXT
|
||||||
|
* yet, but this is supposed to be possible as well.
|
||||||
|
*/
|
||||||
|
if (rs->rs_phyerr != ATH9K_PHYERR_RADAR &&
|
||||||
|
rs->rs_phyerr != ATH9K_PHYERR_FALSE_RADAR_EXT &&
|
||||||
|
rs->rs_phyerr != ATH9K_PHYERR_SPECTRAL)
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
/* check if spectral scan bit is set. This does not have to be checked
|
||||||
|
* if received through a SPECTRAL phy error, but shouldn't hurt.
|
||||||
|
*/
|
||||||
|
radar_info = ((struct ath_radar_info *)&vdata[len]) - 1;
|
||||||
|
if (!(radar_info->pulse_bw_info & SPECTRAL_SCAN_BITMASK))
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
chan_type = cfg80211_get_chandef_type(&sc->hw->conf.chandef);
|
||||||
|
if ((chan_type == NL80211_CHAN_HT40MINUS) ||
|
||||||
|
(chan_type == NL80211_CHAN_HT40PLUS)) {
|
||||||
|
fft_len = SPECTRAL_HT20_40_TOTAL_DATA_LEN;
|
||||||
|
num_bins = SPECTRAL_HT20_40_NUM_BINS;
|
||||||
|
bins = (u8 *)fft_sample_40.data;
|
||||||
|
} else {
|
||||||
|
fft_len = SPECTRAL_HT20_TOTAL_DATA_LEN;
|
||||||
|
num_bins = SPECTRAL_HT20_NUM_BINS;
|
||||||
|
bins = (u8 *)fft_sample_20.data;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Variation in the data length is possible and will be fixed later */
|
||||||
|
if ((len > fft_len + 2) || (len < fft_len - 1))
|
||||||
|
return 1;
|
||||||
|
|
||||||
|
switch (len - fft_len) {
|
||||||
|
case 0:
|
||||||
|
/* length correct, nothing to do. */
|
||||||
|
memcpy(bins, vdata, num_bins);
|
||||||
|
break;
|
||||||
|
case -1:
|
||||||
|
/* first byte missing, duplicate it. */
|
||||||
|
memcpy(&bins[1], vdata, num_bins - 1);
|
||||||
|
bins[0] = vdata[0];
|
||||||
|
break;
|
||||||
|
case 2:
|
||||||
|
/* MAC added 2 extra bytes at bin 30 and 32, remove them. */
|
||||||
|
memcpy(bins, vdata, 30);
|
||||||
|
bins[30] = vdata[31];
|
||||||
|
memcpy(&bins[31], &vdata[33], num_bins - 31);
|
||||||
|
break;
|
||||||
|
case 1:
|
||||||
|
/* MAC added 2 extra bytes AND first byte is missing. */
|
||||||
|
bins[0] = vdata[0];
|
||||||
|
memcpy(&bins[1], vdata, 30);
|
||||||
|
bins[31] = vdata[31];
|
||||||
|
memcpy(&bins[32], &vdata[33], num_bins - 32);
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* DC value (value in the middle) is the blind spot of the spectral
|
||||||
|
* sample and invalid, interpolate it.
|
||||||
|
*/
|
||||||
|
dc_pos = num_bins / 2;
|
||||||
|
bins[dc_pos] = (bins[dc_pos + 1] + bins[dc_pos - 1]) / 2;
|
||||||
|
|
||||||
|
if ((chan_type == NL80211_CHAN_HT40MINUS) ||
|
||||||
|
(chan_type == NL80211_CHAN_HT40PLUS)) {
|
||||||
|
s8 lower_rssi, upper_rssi;
|
||||||
|
s16 ext_nf;
|
||||||
|
u8 lower_max_index, upper_max_index;
|
||||||
|
u8 lower_bitmap_w, upper_bitmap_w;
|
||||||
|
u16 lower_mag, upper_mag;
|
||||||
|
struct ath9k_hw_cal_data *caldata = ah->caldata;
|
||||||
|
struct ath_ht20_40_mag_info *mag_info;
|
||||||
|
|
||||||
|
if (caldata)
|
||||||
|
ext_nf = ath9k_hw_getchan_noise(ah, ah->curchan,
|
||||||
|
caldata->nfCalHist[3].privNF);
|
||||||
|
else
|
||||||
|
ext_nf = ATH_DEFAULT_NOISE_FLOOR;
|
||||||
|
|
||||||
|
length = sizeof(fft_sample_40) - sizeof(struct fft_sample_tlv);
|
||||||
|
fft_sample_40.tlv.type = ATH_FFT_SAMPLE_HT20_40;
|
||||||
|
fft_sample_40.tlv.length = __cpu_to_be16(length);
|
||||||
|
fft_sample_40.freq = __cpu_to_be16(freq);
|
||||||
|
fft_sample_40.channel_type = chan_type;
|
||||||
|
|
||||||
|
if (chan_type == NL80211_CHAN_HT40PLUS) {
|
||||||
|
lower_rssi = fix_rssi_inv_only(rs->rs_rssi_ctl[0]);
|
||||||
|
upper_rssi = fix_rssi_inv_only(rs->rs_rssi_ext[0]);
|
||||||
|
|
||||||
|
fft_sample_40.lower_noise = ah->noise;
|
||||||
|
fft_sample_40.upper_noise = ext_nf;
|
||||||
|
} else {
|
||||||
|
lower_rssi = fix_rssi_inv_only(rs->rs_rssi_ext[0]);
|
||||||
|
upper_rssi = fix_rssi_inv_only(rs->rs_rssi_ctl[0]);
|
||||||
|
|
||||||
|
fft_sample_40.lower_noise = ext_nf;
|
||||||
|
fft_sample_40.upper_noise = ah->noise;
|
||||||
|
}
|
||||||
|
fft_sample_40.lower_rssi = lower_rssi;
|
||||||
|
fft_sample_40.upper_rssi = upper_rssi;
|
||||||
|
|
||||||
|
mag_info = ((struct ath_ht20_40_mag_info *)radar_info) - 1;
|
||||||
|
lower_mag = spectral_max_magnitude(mag_info->lower_bins);
|
||||||
|
upper_mag = spectral_max_magnitude(mag_info->upper_bins);
|
||||||
|
fft_sample_40.lower_max_magnitude = __cpu_to_be16(lower_mag);
|
||||||
|
fft_sample_40.upper_max_magnitude = __cpu_to_be16(upper_mag);
|
||||||
|
lower_max_index = spectral_max_index(mag_info->lower_bins);
|
||||||
|
upper_max_index = spectral_max_index(mag_info->upper_bins);
|
||||||
|
fft_sample_40.lower_max_index = lower_max_index;
|
||||||
|
fft_sample_40.upper_max_index = upper_max_index;
|
||||||
|
lower_bitmap_w = spectral_bitmap_weight(mag_info->lower_bins);
|
||||||
|
upper_bitmap_w = spectral_bitmap_weight(mag_info->upper_bins);
|
||||||
|
fft_sample_40.lower_bitmap_weight = lower_bitmap_w;
|
||||||
|
fft_sample_40.upper_bitmap_weight = upper_bitmap_w;
|
||||||
|
fft_sample_40.max_exp = mag_info->max_exp & 0xf;
|
||||||
|
|
||||||
|
fft_sample_40.tsf = __cpu_to_be64(tsf);
|
||||||
|
|
||||||
|
tlv = (struct fft_sample_tlv *)&fft_sample_40;
|
||||||
|
} else {
|
||||||
|
u8 max_index, bitmap_w;
|
||||||
|
u16 magnitude;
|
||||||
|
struct ath_ht20_mag_info *mag_info;
|
||||||
|
|
||||||
|
length = sizeof(fft_sample_20) - sizeof(struct fft_sample_tlv);
|
||||||
|
fft_sample_20.tlv.type = ATH_FFT_SAMPLE_HT20;
|
||||||
|
fft_sample_20.tlv.length = __cpu_to_be16(length);
|
||||||
|
fft_sample_20.freq = __cpu_to_be16(freq);
|
||||||
|
|
||||||
|
fft_sample_20.rssi = fix_rssi_inv_only(rs->rs_rssi_ctl[0]);
|
||||||
|
fft_sample_20.noise = ah->noise;
|
||||||
|
|
||||||
|
mag_info = ((struct ath_ht20_mag_info *)radar_info) - 1;
|
||||||
|
magnitude = spectral_max_magnitude(mag_info->all_bins);
|
||||||
|
fft_sample_20.max_magnitude = __cpu_to_be16(magnitude);
|
||||||
|
max_index = spectral_max_index(mag_info->all_bins);
|
||||||
|
fft_sample_20.max_index = max_index;
|
||||||
|
bitmap_w = spectral_bitmap_weight(mag_info->all_bins);
|
||||||
|
fft_sample_20.bitmap_weight = bitmap_w;
|
||||||
|
fft_sample_20.max_exp = mag_info->max_exp & 0xf;
|
||||||
|
|
||||||
|
fft_sample_20.tsf = __cpu_to_be64(tsf);
|
||||||
|
|
||||||
|
tlv = (struct fft_sample_tlv *)&fft_sample_20;
|
||||||
|
}
|
||||||
|
|
||||||
|
ath_debug_send_fft_sample(sc, tlv);
|
||||||
|
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*********************/
|
||||||
|
/* spectral_scan_ctl */
|
||||||
|
/*********************/
|
||||||
|
|
||||||
|
static ssize_t read_file_spec_scan_ctl(struct file *file, char __user *user_buf,
|
||||||
|
size_t count, loff_t *ppos)
|
||||||
|
{
|
||||||
|
struct ath_softc *sc = file->private_data;
|
||||||
|
char *mode = "";
|
||||||
|
unsigned int len;
|
||||||
|
|
||||||
|
switch (sc->spectral_mode) {
|
||||||
|
case SPECTRAL_DISABLED:
|
||||||
|
mode = "disable";
|
||||||
|
break;
|
||||||
|
case SPECTRAL_BACKGROUND:
|
||||||
|
mode = "background";
|
||||||
|
break;
|
||||||
|
case SPECTRAL_CHANSCAN:
|
||||||
|
mode = "chanscan";
|
||||||
|
break;
|
||||||
|
case SPECTRAL_MANUAL:
|
||||||
|
mode = "manual";
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
len = strlen(mode);
|
||||||
|
return simple_read_from_buffer(user_buf, count, ppos, mode, len);
|
||||||
|
}
|
||||||
|
|
||||||
|
static ssize_t write_file_spec_scan_ctl(struct file *file,
|
||||||
|
const char __user *user_buf,
|
||||||
|
size_t count, loff_t *ppos)
|
||||||
|
{
|
||||||
|
struct ath_softc *sc = file->private_data;
|
||||||
|
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
|
||||||
|
char buf[32];
|
||||||
|
ssize_t len;
|
||||||
|
|
||||||
|
if (config_enabled(CONFIG_ATH9K_TX99))
|
||||||
|
return -EOPNOTSUPP;
|
||||||
|
|
||||||
|
len = min(count, sizeof(buf) - 1);
|
||||||
|
if (copy_from_user(buf, user_buf, len))
|
||||||
|
return -EFAULT;
|
||||||
|
|
||||||
|
buf[len] = '\0';
|
||||||
|
|
||||||
|
if (strncmp("trigger", buf, 7) == 0) {
|
||||||
|
ath9k_spectral_scan_trigger(sc->hw);
|
||||||
|
} else if (strncmp("background", buf, 9) == 0) {
|
||||||
|
ath9k_spectral_scan_config(sc->hw, SPECTRAL_BACKGROUND);
|
||||||
|
ath_dbg(common, CONFIG, "spectral scan: background mode enabled\n");
|
||||||
|
} else if (strncmp("chanscan", buf, 8) == 0) {
|
||||||
|
ath9k_spectral_scan_config(sc->hw, SPECTRAL_CHANSCAN);
|
||||||
|
ath_dbg(common, CONFIG, "spectral scan: channel scan mode enabled\n");
|
||||||
|
} else if (strncmp("manual", buf, 6) == 0) {
|
||||||
|
ath9k_spectral_scan_config(sc->hw, SPECTRAL_MANUAL);
|
||||||
|
ath_dbg(common, CONFIG, "spectral scan: manual mode enabled\n");
|
||||||
|
} else if (strncmp("disable", buf, 7) == 0) {
|
||||||
|
ath9k_spectral_scan_config(sc->hw, SPECTRAL_DISABLED);
|
||||||
|
ath_dbg(common, CONFIG, "spectral scan: disabled\n");
|
||||||
|
} else {
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
|
||||||
|
return count;
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct file_operations fops_spec_scan_ctl = {
|
||||||
|
.read = read_file_spec_scan_ctl,
|
||||||
|
.write = write_file_spec_scan_ctl,
|
||||||
|
.open = simple_open,
|
||||||
|
.owner = THIS_MODULE,
|
||||||
|
.llseek = default_llseek,
|
||||||
|
};
|
||||||
|
|
||||||
|
/*************************/
|
||||||
|
/* spectral_short_repeat */
|
||||||
|
/*************************/
|
||||||
|
|
||||||
|
static ssize_t read_file_spectral_short_repeat(struct file *file,
|
||||||
|
char __user *user_buf,
|
||||||
|
size_t count, loff_t *ppos)
|
||||||
|
{
|
||||||
|
struct ath_softc *sc = file->private_data;
|
||||||
|
char buf[32];
|
||||||
|
unsigned int len;
|
||||||
|
|
||||||
|
len = sprintf(buf, "%d\n", sc->spec_config.short_repeat);
|
||||||
|
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
|
||||||
|
}
|
||||||
|
|
||||||
|
static ssize_t write_file_spectral_short_repeat(struct file *file,
|
||||||
|
const char __user *user_buf,
|
||||||
|
size_t count, loff_t *ppos)
|
||||||
|
{
|
||||||
|
struct ath_softc *sc = file->private_data;
|
||||||
|
unsigned long val;
|
||||||
|
char buf[32];
|
||||||
|
ssize_t len;
|
||||||
|
|
||||||
|
len = min(count, sizeof(buf) - 1);
|
||||||
|
if (copy_from_user(buf, user_buf, len))
|
||||||
|
return -EFAULT;
|
||||||
|
|
||||||
|
buf[len] = '\0';
|
||||||
|
if (kstrtoul(buf, 0, &val))
|
||||||
|
return -EINVAL;
|
||||||
|
|
||||||
|
if (val < 0 || val > 1)
|
||||||
|
return -EINVAL;
|
||||||
|
|
||||||
|
sc->spec_config.short_repeat = val;
|
||||||
|
return count;
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct file_operations fops_spectral_short_repeat = {
|
||||||
|
.read = read_file_spectral_short_repeat,
|
||||||
|
.write = write_file_spectral_short_repeat,
|
||||||
|
.open = simple_open,
|
||||||
|
.owner = THIS_MODULE,
|
||||||
|
.llseek = default_llseek,
|
||||||
|
};
|
||||||
|
|
||||||
|
/******************/
|
||||||
|
/* spectral_count */
|
||||||
|
/******************/
|
||||||
|
|
||||||
|
static ssize_t read_file_spectral_count(struct file *file,
|
||||||
|
char __user *user_buf,
|
||||||
|
size_t count, loff_t *ppos)
|
||||||
|
{
|
||||||
|
struct ath_softc *sc = file->private_data;
|
||||||
|
char buf[32];
|
||||||
|
unsigned int len;
|
||||||
|
|
||||||
|
len = sprintf(buf, "%d\n", sc->spec_config.count);
|
||||||
|
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
|
||||||
|
}
|
||||||
|
|
||||||
|
static ssize_t write_file_spectral_count(struct file *file,
|
||||||
|
const char __user *user_buf,
|
||||||
|
size_t count, loff_t *ppos)
|
||||||
|
{
|
||||||
|
struct ath_softc *sc = file->private_data;
|
||||||
|
unsigned long val;
|
||||||
|
char buf[32];
|
||||||
|
ssize_t len;
|
||||||
|
|
||||||
|
len = min(count, sizeof(buf) - 1);
|
||||||
|
if (copy_from_user(buf, user_buf, len))
|
||||||
|
return -EFAULT;
|
||||||
|
|
||||||
|
buf[len] = '\0';
|
||||||
|
if (kstrtoul(buf, 0, &val))
|
||||||
|
return -EINVAL;
|
||||||
|
|
||||||
|
if (val < 0 || val > 255)
|
||||||
|
return -EINVAL;
|
||||||
|
|
||||||
|
sc->spec_config.count = val;
|
||||||
|
return count;
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct file_operations fops_spectral_count = {
|
||||||
|
.read = read_file_spectral_count,
|
||||||
|
.write = write_file_spectral_count,
|
||||||
|
.open = simple_open,
|
||||||
|
.owner = THIS_MODULE,
|
||||||
|
.llseek = default_llseek,
|
||||||
|
};
|
||||||
|
|
||||||
|
/*******************/
|
||||||
|
/* spectral_period */
|
||||||
|
/*******************/
|
||||||
|
|
||||||
|
static ssize_t read_file_spectral_period(struct file *file,
|
||||||
|
char __user *user_buf,
|
||||||
|
size_t count, loff_t *ppos)
|
||||||
|
{
|
||||||
|
struct ath_softc *sc = file->private_data;
|
||||||
|
char buf[32];
|
||||||
|
unsigned int len;
|
||||||
|
|
||||||
|
len = sprintf(buf, "%d\n", sc->spec_config.period);
|
||||||
|
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
|
||||||
|
}
|
||||||
|
|
||||||
|
static ssize_t write_file_spectral_period(struct file *file,
|
||||||
|
const char __user *user_buf,
|
||||||
|
size_t count, loff_t *ppos)
|
||||||
|
{
|
||||||
|
struct ath_softc *sc = file->private_data;
|
||||||
|
unsigned long val;
|
||||||
|
char buf[32];
|
||||||
|
ssize_t len;
|
||||||
|
|
||||||
|
len = min(count, sizeof(buf) - 1);
|
||||||
|
if (copy_from_user(buf, user_buf, len))
|
||||||
|
return -EFAULT;
|
||||||
|
|
||||||
|
buf[len] = '\0';
|
||||||
|
if (kstrtoul(buf, 0, &val))
|
||||||
|
return -EINVAL;
|
||||||
|
|
||||||
|
if (val < 0 || val > 255)
|
||||||
|
return -EINVAL;
|
||||||
|
|
||||||
|
sc->spec_config.period = val;
|
||||||
|
return count;
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct file_operations fops_spectral_period = {
|
||||||
|
.read = read_file_spectral_period,
|
||||||
|
.write = write_file_spectral_period,
|
||||||
|
.open = simple_open,
|
||||||
|
.owner = THIS_MODULE,
|
||||||
|
.llseek = default_llseek,
|
||||||
|
};
|
||||||
|
|
||||||
|
/***********************/
|
||||||
|
/* spectral_fft_period */
|
||||||
|
/***********************/
|
||||||
|
|
||||||
|
static ssize_t read_file_spectral_fft_period(struct file *file,
|
||||||
|
char __user *user_buf,
|
||||||
|
size_t count, loff_t *ppos)
|
||||||
|
{
|
||||||
|
struct ath_softc *sc = file->private_data;
|
||||||
|
char buf[32];
|
||||||
|
unsigned int len;
|
||||||
|
|
||||||
|
len = sprintf(buf, "%d\n", sc->spec_config.fft_period);
|
||||||
|
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
|
||||||
|
}
|
||||||
|
|
||||||
|
static ssize_t write_file_spectral_fft_period(struct file *file,
|
||||||
|
const char __user *user_buf,
|
||||||
|
size_t count, loff_t *ppos)
|
||||||
|
{
|
||||||
|
struct ath_softc *sc = file->private_data;
|
||||||
|
unsigned long val;
|
||||||
|
char buf[32];
|
||||||
|
ssize_t len;
|
||||||
|
|
||||||
|
len = min(count, sizeof(buf) - 1);
|
||||||
|
if (copy_from_user(buf, user_buf, len))
|
||||||
|
return -EFAULT;
|
||||||
|
|
||||||
|
buf[len] = '\0';
|
||||||
|
if (kstrtoul(buf, 0, &val))
|
||||||
|
return -EINVAL;
|
||||||
|
|
||||||
|
if (val < 0 || val > 15)
|
||||||
|
return -EINVAL;
|
||||||
|
|
||||||
|
sc->spec_config.fft_period = val;
|
||||||
|
return count;
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct file_operations fops_spectral_fft_period = {
|
||||||
|
.read = read_file_spectral_fft_period,
|
||||||
|
.write = write_file_spectral_fft_period,
|
||||||
|
.open = simple_open,
|
||||||
|
.owner = THIS_MODULE,
|
||||||
|
.llseek = default_llseek,
|
||||||
|
};
|
||||||
|
|
||||||
|
/*******************/
|
||||||
|
/* Relay interface */
|
||||||
|
/*******************/
|
||||||
|
|
||||||
|
static struct dentry *create_buf_file_handler(const char *filename,
|
||||||
|
struct dentry *parent,
|
||||||
|
umode_t mode,
|
||||||
|
struct rchan_buf *buf,
|
||||||
|
int *is_global)
|
||||||
|
{
|
||||||
|
struct dentry *buf_file;
|
||||||
|
|
||||||
|
buf_file = debugfs_create_file(filename, mode, parent, buf,
|
||||||
|
&relay_file_operations);
|
||||||
|
*is_global = 1;
|
||||||
|
return buf_file;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int remove_buf_file_handler(struct dentry *dentry)
|
||||||
|
{
|
||||||
|
debugfs_remove(dentry);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
struct rchan_callbacks rfs_spec_scan_cb = {
|
||||||
|
.create_buf_file = create_buf_file_handler,
|
||||||
|
.remove_buf_file = remove_buf_file_handler,
|
||||||
|
};
|
||||||
|
|
||||||
|
/*********************/
|
||||||
|
/* Debug Init/Deinit */
|
||||||
|
/*********************/
|
||||||
|
|
||||||
|
void ath9k_spectral_deinit_debug(struct ath_softc *sc)
|
||||||
|
{
|
||||||
|
if (config_enabled(CONFIG_ATH9K_DEBUGFS) && sc->rfs_chan_spec_scan) {
|
||||||
|
relay_close(sc->rfs_chan_spec_scan);
|
||||||
|
sc->rfs_chan_spec_scan = NULL;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void ath9k_spectral_init_debug(struct ath_softc *sc)
|
||||||
|
{
|
||||||
|
sc->rfs_chan_spec_scan = relay_open("spectral_scan",
|
||||||
|
sc->debug.debugfs_phy,
|
||||||
|
1024, 256, &rfs_spec_scan_cb,
|
||||||
|
NULL);
|
||||||
|
debugfs_create_file("spectral_scan_ctl",
|
||||||
|
S_IRUSR | S_IWUSR,
|
||||||
|
sc->debug.debugfs_phy, sc,
|
||||||
|
&fops_spec_scan_ctl);
|
||||||
|
debugfs_create_file("spectral_short_repeat",
|
||||||
|
S_IRUSR | S_IWUSR,
|
||||||
|
sc->debug.debugfs_phy, sc,
|
||||||
|
&fops_spectral_short_repeat);
|
||||||
|
debugfs_create_file("spectral_count",
|
||||||
|
S_IRUSR | S_IWUSR,
|
||||||
|
sc->debug.debugfs_phy, sc,
|
||||||
|
&fops_spectral_count);
|
||||||
|
debugfs_create_file("spectral_period",
|
||||||
|
S_IRUSR | S_IWUSR,
|
||||||
|
sc->debug.debugfs_phy, sc,
|
||||||
|
&fops_spectral_period);
|
||||||
|
debugfs_create_file("spectral_fft_period",
|
||||||
|
S_IRUSR | S_IWUSR,
|
||||||
|
sc->debug.debugfs_phy, sc,
|
||||||
|
&fops_spectral_fft_period);
|
||||||
|
}
|
||||||
212
drivers/net/wireless/ath/ath9k/spectral.h
Normal file
212
drivers/net/wireless/ath/ath9k/spectral.h
Normal file
@ -0,0 +1,212 @@
|
|||||||
|
/*
|
||||||
|
* Copyright (c) 2013 Qualcomm Atheros, Inc.
|
||||||
|
*
|
||||||
|
* Permission to use, copy, modify, and/or distribute this software for any
|
||||||
|
* purpose with or without fee is hereby granted, provided that the above
|
||||||
|
* copyright notice and this permission notice appear in all copies.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||||
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||||
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||||
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||||
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||||
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||||
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef SPECTRAL_H
|
||||||
|
#define SPECTRAL_H
|
||||||
|
|
||||||
|
/* enum spectral_mode:
|
||||||
|
*
|
||||||
|
* @SPECTRAL_DISABLED: spectral mode is disabled
|
||||||
|
* @SPECTRAL_BACKGROUND: hardware sends samples when it is not busy with
|
||||||
|
* something else.
|
||||||
|
* @SPECTRAL_MANUAL: spectral scan is enabled, triggering for samples
|
||||||
|
* is performed manually.
|
||||||
|
* @SPECTRAL_CHANSCAN: Like manual, but also triggered when changing channels
|
||||||
|
* during a channel scan.
|
||||||
|
*/
|
||||||
|
enum spectral_mode {
|
||||||
|
SPECTRAL_DISABLED = 0,
|
||||||
|
SPECTRAL_BACKGROUND,
|
||||||
|
SPECTRAL_MANUAL,
|
||||||
|
SPECTRAL_CHANSCAN,
|
||||||
|
};
|
||||||
|
|
||||||
|
#define SPECTRAL_SCAN_BITMASK 0x10
|
||||||
|
/* Radar info packet format, used for DFS and spectral formats. */
|
||||||
|
struct ath_radar_info {
|
||||||
|
u8 pulse_length_pri;
|
||||||
|
u8 pulse_length_ext;
|
||||||
|
u8 pulse_bw_info;
|
||||||
|
} __packed;
|
||||||
|
|
||||||
|
/* The HT20 spectral data has 4 bytes of additional information at it's end.
|
||||||
|
*
|
||||||
|
* [7:0]: all bins {max_magnitude[1:0], bitmap_weight[5:0]}
|
||||||
|
* [7:0]: all bins max_magnitude[9:2]
|
||||||
|
* [7:0]: all bins {max_index[5:0], max_magnitude[11:10]}
|
||||||
|
* [3:0]: max_exp (shift amount to size max bin to 8-bit unsigned)
|
||||||
|
*/
|
||||||
|
struct ath_ht20_mag_info {
|
||||||
|
u8 all_bins[3];
|
||||||
|
u8 max_exp;
|
||||||
|
} __packed;
|
||||||
|
|
||||||
|
#define SPECTRAL_HT20_NUM_BINS 56
|
||||||
|
|
||||||
|
/* WARNING: don't actually use this struct! MAC may vary the amount of
|
||||||
|
* data by -1/+2. This struct is for reference only.
|
||||||
|
*/
|
||||||
|
struct ath_ht20_fft_packet {
|
||||||
|
u8 data[SPECTRAL_HT20_NUM_BINS];
|
||||||
|
struct ath_ht20_mag_info mag_info;
|
||||||
|
struct ath_radar_info radar_info;
|
||||||
|
} __packed;
|
||||||
|
|
||||||
|
#define SPECTRAL_HT20_TOTAL_DATA_LEN (sizeof(struct ath_ht20_fft_packet))
|
||||||
|
|
||||||
|
/* Dynamic 20/40 mode:
|
||||||
|
*
|
||||||
|
* [7:0]: lower bins {max_magnitude[1:0], bitmap_weight[5:0]}
|
||||||
|
* [7:0]: lower bins max_magnitude[9:2]
|
||||||
|
* [7:0]: lower bins {max_index[5:0], max_magnitude[11:10]}
|
||||||
|
* [7:0]: upper bins {max_magnitude[1:0], bitmap_weight[5:0]}
|
||||||
|
* [7:0]: upper bins max_magnitude[9:2]
|
||||||
|
* [7:0]: upper bins {max_index[5:0], max_magnitude[11:10]}
|
||||||
|
* [3:0]: max_exp (shift amount to size max bin to 8-bit unsigned)
|
||||||
|
*/
|
||||||
|
struct ath_ht20_40_mag_info {
|
||||||
|
u8 lower_bins[3];
|
||||||
|
u8 upper_bins[3];
|
||||||
|
u8 max_exp;
|
||||||
|
} __packed;
|
||||||
|
|
||||||
|
#define SPECTRAL_HT20_40_NUM_BINS 128
|
||||||
|
|
||||||
|
/* WARNING: don't actually use this struct! MAC may vary the amount of
|
||||||
|
* data. This struct is for reference only.
|
||||||
|
*/
|
||||||
|
struct ath_ht20_40_fft_packet {
|
||||||
|
u8 data[SPECTRAL_HT20_40_NUM_BINS];
|
||||||
|
struct ath_ht20_40_mag_info mag_info;
|
||||||
|
struct ath_radar_info radar_info;
|
||||||
|
} __packed;
|
||||||
|
|
||||||
|
|
||||||
|
#define SPECTRAL_HT20_40_TOTAL_DATA_LEN (sizeof(struct ath_ht20_40_fft_packet))
|
||||||
|
|
||||||
|
/* grabs the max magnitude from the all/upper/lower bins */
|
||||||
|
static inline u16 spectral_max_magnitude(u8 *bins)
|
||||||
|
{
|
||||||
|
return (bins[0] & 0xc0) >> 6 |
|
||||||
|
(bins[1] & 0xff) << 2 |
|
||||||
|
(bins[2] & 0x03) << 10;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* return the max magnitude from the all/upper/lower bins */
|
||||||
|
static inline u8 spectral_max_index(u8 *bins)
|
||||||
|
{
|
||||||
|
s8 m = (bins[2] & 0xfc) >> 2;
|
||||||
|
|
||||||
|
/* TODO: this still doesn't always report the right values ... */
|
||||||
|
if (m > 32)
|
||||||
|
m |= 0xe0;
|
||||||
|
else
|
||||||
|
m &= ~0xe0;
|
||||||
|
|
||||||
|
return m + 29;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* return the bitmap weight from the all/upper/lower bins */
|
||||||
|
static inline u8 spectral_bitmap_weight(u8 *bins)
|
||||||
|
{
|
||||||
|
return bins[0] & 0x3f;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* FFT sample format given to userspace via debugfs.
|
||||||
|
*
|
||||||
|
* Please keep the type/length at the front position and change
|
||||||
|
* other fields after adding another sample type
|
||||||
|
*
|
||||||
|
* TODO: this might need rework when switching to nl80211-based
|
||||||
|
* interface.
|
||||||
|
*/
|
||||||
|
enum ath_fft_sample_type {
|
||||||
|
ATH_FFT_SAMPLE_HT20 = 1,
|
||||||
|
ATH_FFT_SAMPLE_HT20_40,
|
||||||
|
};
|
||||||
|
|
||||||
|
struct fft_sample_tlv {
|
||||||
|
u8 type; /* see ath_fft_sample */
|
||||||
|
__be16 length;
|
||||||
|
/* type dependent data follows */
|
||||||
|
} __packed;
|
||||||
|
|
||||||
|
struct fft_sample_ht20 {
|
||||||
|
struct fft_sample_tlv tlv;
|
||||||
|
|
||||||
|
u8 max_exp;
|
||||||
|
|
||||||
|
__be16 freq;
|
||||||
|
s8 rssi;
|
||||||
|
s8 noise;
|
||||||
|
|
||||||
|
__be16 max_magnitude;
|
||||||
|
u8 max_index;
|
||||||
|
u8 bitmap_weight;
|
||||||
|
|
||||||
|
__be64 tsf;
|
||||||
|
|
||||||
|
u8 data[SPECTRAL_HT20_NUM_BINS];
|
||||||
|
} __packed;
|
||||||
|
|
||||||
|
struct fft_sample_ht20_40 {
|
||||||
|
struct fft_sample_tlv tlv;
|
||||||
|
|
||||||
|
u8 channel_type;
|
||||||
|
__be16 freq;
|
||||||
|
|
||||||
|
s8 lower_rssi;
|
||||||
|
s8 upper_rssi;
|
||||||
|
|
||||||
|
__be64 tsf;
|
||||||
|
|
||||||
|
s8 lower_noise;
|
||||||
|
s8 upper_noise;
|
||||||
|
|
||||||
|
__be16 lower_max_magnitude;
|
||||||
|
__be16 upper_max_magnitude;
|
||||||
|
|
||||||
|
u8 lower_max_index;
|
||||||
|
u8 upper_max_index;
|
||||||
|
|
||||||
|
u8 lower_bitmap_weight;
|
||||||
|
u8 upper_bitmap_weight;
|
||||||
|
|
||||||
|
u8 max_exp;
|
||||||
|
|
||||||
|
u8 data[SPECTRAL_HT20_40_NUM_BINS];
|
||||||
|
} __packed;
|
||||||
|
|
||||||
|
void ath9k_spectral_init_debug(struct ath_softc *sc);
|
||||||
|
void ath9k_spectral_deinit_debug(struct ath_softc *sc);
|
||||||
|
|
||||||
|
void ath9k_spectral_scan_trigger(struct ieee80211_hw *hw);
|
||||||
|
int ath9k_spectral_scan_config(struct ieee80211_hw *hw,
|
||||||
|
enum spectral_mode spectral_mode);
|
||||||
|
|
||||||
|
#ifdef CONFIG_ATH9K_DEBUGFS
|
||||||
|
int ath_process_fft(struct ath_softc *sc, struct ieee80211_hdr *hdr,
|
||||||
|
struct ath_rx_status *rs, u64 tsf);
|
||||||
|
#else
|
||||||
|
static inline int ath_process_fft(struct ath_softc *sc,
|
||||||
|
struct ieee80211_hdr *hdr,
|
||||||
|
struct ath_rx_status *rs, u64 tsf)
|
||||||
|
{
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
#endif /* CONFIG_ATH9K_DEBUGFS */
|
||||||
|
|
||||||
|
#endif /* SPECTRAL_H */
|
||||||
Loading…
x
Reference in New Issue
Block a user