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authorDavid S. Miller <davem@davemloft.net>2015-05-24 23:23:01 -0400
committerDavid S. Miller <davem@davemloft.net>2015-05-24 23:23:01 -0400
commitd98c3edcbbbfae903f138edd7855544cd8d09bc2 (patch)
treefcb688aac52e657fea157377c9142ddaacda13d8 /drivers/net/wireless/ath/dfs_pattern_detector.c
parent4029685acc45a0b75c582932788e09bde16e0c65 (diff)
parent6e65104504feaff41848defcef9c2c16c119f90c (diff)
Merge tag 'wireless-drivers-next-for-davem-2015-05-21' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next
Kalle Valo says: ==================== ath10k: * enable channel 144 on 5 GHz * enable Adaptive Noise Immunity (ANI) by default * add Wake on Wireless LAN (WOW) patterns support * add basic Tunneled Direct Link Setup (TDLS) support * add multi-channel support for QCA6174 * enable IBSS RSN support * enable Bluetooth Coexistance whenever firmware supports it * add more versatile way to set bitrates used by the firmware ath9k: * spectral scan: add support for multiple FFT frames per report iwlwifi: * major rework of the scan code (Luca) * some work on the thermal code (Chaya Rachel) * some work on the firwmare debugging infrastructure brcmfmac: * SDIO suspend and resume fixes * wiphy band info and changes in regulatory settings * add support for BCM4324 SDIO and BCM4358 PCIe * enable support of PCIe devices on router platforms (Hante) ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/wireless/ath/dfs_pattern_detector.c')
-rw-r--r--drivers/net/wireless/ath/dfs_pattern_detector.c72
1 files changed, 44 insertions, 28 deletions
diff --git a/drivers/net/wireless/ath/dfs_pattern_detector.c b/drivers/net/wireless/ath/dfs_pattern_detector.c
index c657ca26a71a..656ce42b339a 100644
--- a/drivers/net/wireless/ath/dfs_pattern_detector.c
+++ b/drivers/net/wireless/ath/dfs_pattern_detector.c
@@ -41,30 +41,31 @@ struct radar_types {
/* percentage on ppb threshold to trigger detection */
#define MIN_PPB_THRESH 50
-#define PPB_THRESH(PPB) ((PPB * MIN_PPB_THRESH + 50) / 100)
+#define PPB_THRESH_RATE(PPB, RATE) ((PPB * RATE + 100 - RATE) / 100)
+#define PPB_THRESH(PPB) PPB_THRESH_RATE(PPB, MIN_PPB_THRESH)
#define PRF2PRI(PRF) ((1000000 + PRF / 2) / PRF)
/* percentage of pulse width tolerance */
#define WIDTH_TOLERANCE 5
#define WIDTH_LOWER(X) ((X*(100-WIDTH_TOLERANCE)+50)/100)
#define WIDTH_UPPER(X) ((X*(100+WIDTH_TOLERANCE)+50)/100)
-#define ETSI_PATTERN(ID, WMIN, WMAX, PMIN, PMAX, PRF, PPB) \
+#define ETSI_PATTERN(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(PPB), PRI_TOLERANCE, \
+ PPB_THRESH(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),
- ETSI_PATTERN(1, 0, 5, 200, 1000, 1, 10),
- ETSI_PATTERN(2, 0, 15, 200, 1600, 1, 15),
- ETSI_PATTERN(3, 0, 15, 2300, 4000, 1, 25),
- ETSI_PATTERN(4, 20, 30, 2000, 4000, 1, 20),
- ETSI_PATTERN(5, 0, 2, 300, 400, 3, 10),
- ETSI_PATTERN(6, 0, 2, 400, 1200, 3, 15),
+ 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(5, 0, 2, 300, 400, 3, 10, false),
+ ETSI_PATTERN(6, 0, 2, 400, 1200, 3, 15, false),
};
static const struct radar_types etsi_radar_types_v15 = {
@@ -73,21 +74,30 @@ static const struct radar_types etsi_radar_types_v15 = {
.radar_types = etsi_radar_ref_types_v15,
};
-#define FCC_PATTERN(ID, WMIN, WMAX, PMIN, PMAX, PRF, PPB) \
+#define FCC_PATTERN(ID, WMIN, WMAX, PMIN, PMAX, PRF, PPB, CHIRP) \
{ \
ID, WIDTH_LOWER(WMIN), WIDTH_UPPER(WMAX), \
PMIN - PRI_TOLERANCE, \
PMAX * PRF + PRI_TOLERANCE, PRF, PPB * PRF, \
- PPB_THRESH(PPB), PRI_TOLERANCE, \
+ PPB_THRESH(PPB), PRI_TOLERANCE, CHIRP \
}
+/* radar types released on August 14, 2014
+ * type 1 PRI values randomly selected within the range of 518 and 3066.
+ * divide it to 3 groups is good enough for both of radar detection and
+ * avoiding false detection based on practical test results
+ * collected for more than a year.
+ */
static const struct radar_detector_specs fcc_radar_ref_types[] = {
- FCC_PATTERN(0, 0, 1, 1428, 1428, 1, 18),
- FCC_PATTERN(1, 0, 5, 150, 230, 1, 23),
- FCC_PATTERN(2, 6, 10, 200, 500, 1, 16),
- FCC_PATTERN(3, 11, 20, 200, 500, 1, 12),
- FCC_PATTERN(4, 50, 100, 1000, 2000, 1, 1),
- FCC_PATTERN(5, 0, 1, 333, 333, 1, 9),
+ FCC_PATTERN(0, 0, 1, 1428, 1428, 1, 18, false),
+ FCC_PATTERN(101, 0, 1, 518, 938, 1, 57, false),
+ FCC_PATTERN(102, 0, 1, 938, 2000, 1, 27, false),
+ FCC_PATTERN(103, 0, 1, 2000, 3066, 1, 18, false),
+ FCC_PATTERN(2, 0, 5, 150, 230, 1, 23, false),
+ FCC_PATTERN(3, 6, 10, 200, 500, 1, 16, false),
+ FCC_PATTERN(4, 11, 20, 200, 500, 1, 12, false),
+ FCC_PATTERN(5, 50, 100, 1000, 2000, 1, 1, true),
+ FCC_PATTERN(6, 0, 1, 333, 333, 1, 9, false),
};
static const struct radar_types fcc_radar_types = {
@@ -96,17 +106,23 @@ static const struct radar_types fcc_radar_types = {
.radar_types = fcc_radar_ref_types,
};
-#define JP_PATTERN FCC_PATTERN
+#define JP_PATTERN(ID, WMIN, WMAX, PMIN, PMAX, PRF, PPB, RATE, CHIRP) \
+{ \
+ ID, WIDTH_LOWER(WMIN), WIDTH_UPPER(WMAX), \
+ PMIN - PRI_TOLERANCE, \
+ PMAX * PRF + PRI_TOLERANCE, PRF, PPB * PRF, \
+ PPB_THRESH_RATE(PPB, RATE), PRI_TOLERANCE, CHIRP \
+}
static const struct radar_detector_specs jp_radar_ref_types[] = {
- JP_PATTERN(0, 0, 1, 1428, 1428, 1, 18),
- JP_PATTERN(1, 2, 3, 3846, 3846, 1, 18),
- JP_PATTERN(2, 0, 1, 1388, 1388, 1, 18),
- JP_PATTERN(3, 1, 2, 4000, 4000, 1, 18),
- JP_PATTERN(4, 0, 5, 150, 230, 1, 23),
- JP_PATTERN(5, 6, 10, 200, 500, 1, 16),
- JP_PATTERN(6, 11, 20, 200, 500, 1, 12),
- JP_PATTERN(7, 50, 100, 1000, 2000, 1, 20),
- JP_PATTERN(5, 0, 1, 333, 333, 1, 9),
+ JP_PATTERN(0, 0, 1, 1428, 1428, 1, 18, 29, false),
+ JP_PATTERN(1, 2, 3, 3846, 3846, 1, 18, 29, false),
+ JP_PATTERN(2, 0, 1, 1388, 1388, 1, 18, 50, false),
+ JP_PATTERN(3, 1, 2, 4000, 4000, 1, 18, 50, false),
+ JP_PATTERN(4, 0, 5, 150, 230, 1, 23, 50, false),
+ JP_PATTERN(5, 6, 10, 200, 500, 1, 16, 50, false),
+ JP_PATTERN(6, 11, 20, 200, 500, 1, 12, 50, false),
+ JP_PATTERN(7, 50, 100, 1000, 2000, 1, 20, 50, false),
+ JP_PATTERN(5, 0, 1, 333, 333, 1, 9, 50, false),
};
static const struct radar_types jp_radar_types = {