diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath10k/spectral.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/spectral.c | 32 |
1 files changed, 20 insertions, 12 deletions
diff --git a/drivers/net/wireless/ath/ath10k/spectral.c b/drivers/net/wireless/ath/ath10k/spectral.c index c061d6958bd1..dd9cc0939ea8 100644 --- a/drivers/net/wireless/ath/ath10k/spectral.c +++ b/drivers/net/wireless/ath/ath10k/spectral.c @@ -56,6 +56,21 @@ static uint8_t get_max_exp(s8 max_index, u16 max_magnitude, size_t bin_len, return max_exp; } +static inline size_t ath10k_spectral_fix_bin_size(struct ath10k *ar, + size_t bin_len) +{ + /* some chipsets reports bin size as 2^n bytes + 'm' bytes in + * report mode 2. First 2^n bytes carries inband tones and last + * 'm' bytes carries band edge detection data mainly used in + * radar detection purpose. Strip last 'm' bytes to make bin size + * as a valid one. 'm' can take possible values of 4, 12. + */ + if (!is_power_of_2(bin_len)) + bin_len -= ar->hw_params.spectral_bin_discard; + + return bin_len; +} + int ath10k_spectral_process_fft(struct ath10k *ar, struct wmi_phyerr_ev_arg *phyerr, const struct phyerr_fft_report *fftr, @@ -70,18 +85,11 @@ int ath10k_spectral_process_fft(struct ath10k *ar, fft_sample = (struct fft_sample_ath10k *)&buf; + bin_len = ath10k_spectral_fix_bin_size(ar, bin_len); + if (bin_len < 64 || bin_len > SPECTRAL_ATH10K_MAX_NUM_BINS) return -EINVAL; - /* qca99x0 reports bin size as 68 bytes (64 bytes + 4 bytes) in - * report mode 2. First 64 bytes carries inband tones (-32 to +31) - * and last 4 byte carries band edge detection data (+32) mainly - * used in radar detection purpose. Strip last 4 byte to make bin - * size is valid one. - */ - if (bin_len == 68) - bin_len -= 4; - reg0 = __le32_to_cpu(fftr->reg0); reg1 = __le32_to_cpu(fftr->reg1); @@ -536,15 +544,15 @@ int ath10k_spectral_create(struct ath10k *ar) 1140, 2500, &rfs_spec_scan_cb, NULL); debugfs_create_file("spectral_scan_ctl", - S_IRUSR | S_IWUSR, + 0600, ar->debug.debugfs_phy, ar, &fops_spec_scan_ctl); debugfs_create_file("spectral_count", - S_IRUSR | S_IWUSR, + 0600, ar->debug.debugfs_phy, ar, &fops_spectral_count); debugfs_create_file("spectral_bins", - S_IRUSR | S_IWUSR, + 0600, ar->debug.debugfs_phy, ar, &fops_spectral_bins); |