diff options
author | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-11 10:41:07 +0300 |
---|---|---|
committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-13 08:17:18 +0300 |
commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/net/wireless/ath/ath9k/common-spectral.h | |
parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/net/wireless/ath/ath9k/common-spectral.h')
-rw-r--r-- | kernel/drivers/net/wireless/ath/ath9k/common-spectral.h | 35 |
1 files changed, 28 insertions, 7 deletions
diff --git a/kernel/drivers/net/wireless/ath/ath9k/common-spectral.h b/kernel/drivers/net/wireless/ath/ath9k/common-spectral.h index 82d9dd296..998743be9 100644 --- a/kernel/drivers/net/wireless/ath/ath9k/common-spectral.h +++ b/kernel/drivers/net/wireless/ath/ath9k/common-spectral.h @@ -66,6 +66,8 @@ struct ath_ht20_fft_packet { } __packed; #define SPECTRAL_HT20_TOTAL_DATA_LEN (sizeof(struct ath_ht20_fft_packet)) +#define SPECTRAL_HT20_SAMPLE_LEN (sizeof(struct ath_ht20_mag_info) +\ + SPECTRAL_HT20_NUM_BINS) /* Dynamic 20/40 mode: * @@ -101,6 +103,10 @@ struct ath_spec_scan_priv { }; #define SPECTRAL_HT20_40_TOTAL_DATA_LEN (sizeof(struct ath_ht20_40_fft_packet)) +#define SPECTRAL_HT20_40_SAMPLE_LEN (sizeof(struct ath_ht20_40_mag_info) +\ + SPECTRAL_HT20_40_NUM_BINS) + +#define SPECTRAL_SAMPLE_MAX_LEN SPECTRAL_HT20_40_SAMPLE_LEN /* grabs the max magnitude from the all/upper/lower bins */ static inline u16 spectral_max_magnitude(u8 *bins) @@ -111,17 +117,32 @@ 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) +static inline u8 spectral_max_index(u8 *bins, int num_bins) { s8 m = (bins[2] & 0xfc) >> 2; - - /* TODO: this still doesn't always report the right values ... */ - if (m > 32) + u8 zero_idx = num_bins / 2; + + /* It's a 5 bit signed int, remove its sign and use one's + * complement interpretation to add the sign back to the 8 + * bit int + */ + if (m & 0x20) { + m &= ~0x20; m |= 0xe0; - else - m &= ~0xe0; + } + + /* Bring the zero point to the beginning + * instead of the middle so that we can use + * it for array lookup and that we don't deal + * with negative values later + */ + m += zero_idx; + + /* Sanity check to make sure index is within bounds */ + if (m < 0 || m > num_bins - 1) + m = 0; - return m + 29; + return m; } /* return the bitmap weight from the all/upper/lower bins */ |