cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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spectral.h (1939B)

      1/* SPDX-License-Identifier: BSD-3-Clause-Clear */
      2/*
      3 * Copyright (c) 2019-2020 The Linux Foundation. All rights reserved.
      4 */
      5
      6#ifndef ATH11K_SPECTRAL_H
      7#define ATH11K_SPECTRAL_H
      8
      9#include "../spectral_common.h"
     10#include "dbring.h"
     11
     12/* enum ath11k_spectral_mode:
     13 *
     14 * @SPECTRAL_DISABLED: spectral mode is disabled
     15 * @SPECTRAL_BACKGROUND: hardware sends samples when it is not busy with
     16 *	something else.
     17 * @SPECTRAL_MANUAL: spectral scan is enabled, triggering for samples
     18 *	is performed manually.
     19 */
     20enum ath11k_spectral_mode {
     21	ATH11K_SPECTRAL_DISABLED = 0,
     22	ATH11K_SPECTRAL_BACKGROUND,
     23	ATH11K_SPECTRAL_MANUAL,
     24};
     25
     26struct ath11k_spectral {
     27	struct ath11k_dbring rx_ring;
     28	/* Protects enabled */
     29	spinlock_t lock;
     30	struct rchan *rfs_scan;	/* relay(fs) channel for spectral scan */
     31	struct dentry *scan_ctl;
     32	struct dentry *scan_count;
     33	struct dentry *scan_bins;
     34	enum ath11k_spectral_mode mode;
     35	u16 count;
     36	u8 fft_size;
     37	bool enabled;
     38};
     39
     40#ifdef CONFIG_ATH11K_SPECTRAL
     41
     42int ath11k_spectral_init(struct ath11k_base *ab);
     43void ath11k_spectral_deinit(struct ath11k_base *ab);
     44int ath11k_spectral_vif_stop(struct ath11k_vif *arvif);
     45void ath11k_spectral_reset_buffer(struct ath11k *ar);
     46enum ath11k_spectral_mode ath11k_spectral_get_mode(struct ath11k *ar);
     47struct ath11k_dbring *ath11k_spectral_get_dbring(struct ath11k *ar);
     48
     49#else
     50
     51static inline int ath11k_spectral_init(struct ath11k_base *ab)
     52{
     53	return 0;
     54}
     55
     56static inline void ath11k_spectral_deinit(struct ath11k_base *ab)
     57{
     58}
     59
     60static inline int ath11k_spectral_vif_stop(struct ath11k_vif *arvif)
     61{
     62	return 0;
     63}
     64
     65static inline void ath11k_spectral_reset_buffer(struct ath11k *ar)
     66{
     67}
     68
     69static inline
     70enum ath11k_spectral_mode ath11k_spectral_get_mode(struct ath11k *ar)
     71{
     72	return ATH11K_SPECTRAL_DISABLED;
     73}
     74
     75static inline
     76struct ath11k_dbring *ath11k_spectral_get_dbring(struct ath11k *ar)
     77{
     78	return NULL;
     79}
     80
     81#endif /* CONFIG_ATH11K_SPECTRAL */
     82#endif /* ATH11K_SPECTRAL_H */