/* * 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 #include "../spectral_common.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 { … }; #define SPECTRAL_SCAN_BITMASK … /* Radar info packet format, used for DFS and spectral formats. */ struct ath_radar_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 { … } __packed; /* 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 { … } __packed; #define SPECTRAL_HT20_TOTAL_DATA_LEN … #define SPECTRAL_HT20_SAMPLE_LEN … /* 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 { … } __packed; /* 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 { … } __packed; struct ath_spec_scan_priv { … }; #define SPECTRAL_HT20_40_TOTAL_DATA_LEN … #define SPECTRAL_HT20_40_SAMPLE_LEN … #define SPECTRAL_SAMPLE_MAX_LEN … /* grabs the max magnitude from the all/upper/lower bins */ static inline u16 spectral_max_magnitude(u8 *bins) { … } /* return the max magnitude from the all/upper/lower bins */ static inline u8 spectral_max_index(u8 *bins, int num_bins) { … } static inline u8 spectral_max_index_ht40(u8 *bins) { … } static inline u8 spectral_max_index_ht20(u8 *bins) { … } /* return the bitmap weight from the all/upper/lower bins */ static inline u8 spectral_bitmap_weight(u8 *bins) { … } #ifdef CONFIG_ATH9K_COMMON_SPECTRAL void ath9k_cmn_spectral_init_debug(struct ath_spec_scan_priv *spec_priv, struct dentry *debugfs_phy); void ath9k_cmn_spectral_deinit_debug(struct ath_spec_scan_priv *spec_priv); void ath9k_cmn_spectral_scan_trigger(struct ath_common *common, struct ath_spec_scan_priv *spec_priv); int ath9k_cmn_spectral_scan_config(struct ath_common *common, struct ath_spec_scan_priv *spec_priv, enum spectral_mode spectral_mode); int ath_cmn_process_fft(struct ath_spec_scan_priv *spec_priv, struct ieee80211_hdr *hdr, struct ath_rx_status *rs, u64 tsf); #else static inline void ath9k_cmn_spectral_init_debug(struct ath_spec_scan_priv *spec_priv, struct dentry *debugfs_phy) { } static inline void ath9k_cmn_spectral_deinit_debug(struct ath_spec_scan_priv *spec_priv) { } static inline void ath9k_cmn_spectral_scan_trigger(struct ath_common *common, struct ath_spec_scan_priv *spec_priv) { } static inline int ath_cmn_process_fft(struct ath_spec_scan_priv *spec_priv, struct ieee80211_hdr *hdr, struct ath_rx_status *rs, u64 tsf) { return 0; } #endif /* CONFIG_ATH9K_COMMON_SPECTRAL */ #endif /* SPECTRAL_H */
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