Merge "ath: Reduce ETSI type4 radar detection thresh to 30%" (be8b7b26) · Commits · e / devices / android_kernel_sony_msm8998

drivers/net/wireless/ath/dfs_pattern_detector.c

+14 −1

Original line number	Diff line number	Diff line
		@@ -37,6 +37,11 @@ struct radar_types {
		#define MIN_PPB_THRESH 50
		#define PPB_THRESH_RATE(PPB, RATE) ((PPB * RATE + 100 - RATE) / 100)
		#define PPB_THRESH(PPB) PPB_THRESH_RATE(PPB, MIN_PPB_THRESH)
		/* percentage on ppb threshold, for ETSI type4, to trigger detection */
		#define MIN_PPB_THRESH_TYPE4 30
		#define PPB_THRESH_RATE_TYPE4(PPB, RATE) ((PPB * RATE + 100 - RATE) / 100)
		#define PPB_THRESH_TYPE4(PPB) PPB_THRESH_RATE_TYPE4(PPB, MIN_PPB_THRESH_TYPE4)

		#define PRF2PRI(PRF) ((1000000 + PRF / 2) / PRF)
		/* percentage of pulse width tolerance */
		#define WIDTH_TOLERANCE 5
		@@ -51,13 +56,21 @@ struct radar_types {
		PPB_THRESH(PPB), PRI_TOLERANCE, CHIRP \
		}

		#define ETSI_PATTERN_TYPE4(ID, WMIN, WMAX, PMIN, PMAX, PRF, PPB, CHIRP) \
		{ \
		ID, WIDTH_LOWER(WMIN), WIDTH_UPPER(WMAX), \
		(PRF2PRI(PMAX) - PRI_TOLERANCE), \
		(PRF2PRI(PMIN) * PRF + PRI_TOLERANCE), PRF, PPB * PRF, \
		PPB_THRESH_TYPE4(PPB), PRI_TOLERANCE, CHIRP \
		}

		/* radar types as defined by ETSI EN-301-893 v1.5.1 */
		static const struct radar_detector_specs etsi_radar_ref_types_v15[] = {
		ETSI_PATTERN(0, 0, 1, 700, 700, 1, 18, false),
		ETSI_PATTERN(1, 0, 5, 200, 1000, 1, 10, false),
		ETSI_PATTERN(2, 0, 15, 200, 1600, 1, 15, false),
		ETSI_PATTERN(3, 0, 15, 2300, 4000, 1, 25, false),
		ETSI_PATTERN(4, 20, 30, 2000, 4000, 1, 20, false),
		ETSI_PATTERN_TYPE4(4, 20, 30, 2000, 4000, 1, 20, false),
		ETSI_PATTERN(5, 0, 2, 300, 400, 3, 10, false),
		ETSI_PATTERN(6, 0, 2, 400, 1200, 3, 15, false),
		};