1 files changed, 140 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_dfs.h b/drivers/net/wireless/mediatek/mt76/mt76x02_dfs.h
new file mode 100644
index 000000000000..7e177c934592
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt76x02_dfs.h
@@ -0,0 +1,140 @@
+/*
+ * Copyright (C) 2016 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef __MT76x02_DFS_H
+#define __MT76x02_DFS_H
+
+#include <linux/types.h>
+#include <linux/nl80211.h>
+
+#define MT_DFS_GP_INTERVAL		(10 << 4) /* 64 us unit */
+#define MT_DFS_NUM_ENGINES		4
+
+/* bbp params */
+#define MT_DFS_SYM_ROUND		0
+#define MT_DFS_DELTA_DELAY		2
+#define MT_DFS_VGA_MASK			0
+#define MT_DFS_PWR_GAIN_OFFSET		3
+#define MT_DFS_PWR_DOWN_TIME		0xf
+#define MT_DFS_RX_PE_MASK		0xff
+#define MT_DFS_PKT_END_MASK		0
+#define MT_DFS_CH_EN			0xf
+
+/* sw detector params */
+#define MT_DFS_EVENT_LOOP		64
+#define MT_DFS_SW_TIMEOUT		(HZ / 20)
+#define MT_DFS_EVENT_WINDOW		(HZ / 5)
+#define MT_DFS_SEQUENCE_WINDOW		(200 * (1 << 20))
+#define MT_DFS_EVENT_TIME_MARGIN	2000
+#define MT_DFS_PRI_MARGIN		4
+#define MT_DFS_SEQUENCE_TH		6
+
+#define MT_DFS_FCC_MAX_PRI		((28570 << 1) + 1000)
+#define MT_DFS_FCC_MIN_PRI		(3000 - 2)
+#define MT_DFS_JP_MAX_PRI		((80000 << 1) + 1000)
+#define MT_DFS_JP_MIN_PRI		(28500 - 2)
+#define MT_DFS_ETSI_MAX_PRI		(133333 + 125000 + 117647 + 1000)
+#define MT_DFS_ETSI_MIN_PRI		(4500 - 20)
+
+struct mt76x02_radar_specs {
+	u8 mode;
+	u16 avg_len;
+	u16 e_low;
+	u16 e_high;
+	u16 w_low;
+	u16 w_high;
+	u16 w_margin;
+	u32 t_low;
+	u32 t_high;
+	u16 t_margin;
+	u32 b_low;
+	u32 b_high;
+	u32 event_expiration;
+	u16 pwr_jmp;
+};
+
+#define MT_DFS_CHECK_EVENT(x)		((x) != GENMASK(31, 0))
+#define MT_DFS_EVENT_ENGINE(x)		(((x) & BIT(31)) ? 2 : 0)
+#define MT_DFS_EVENT_TIMESTAMP(x)	((x) & GENMASK(21, 0))
+#define MT_DFS_EVENT_WIDTH(x)		((x) & GENMASK(11, 0))
+struct mt76x02_dfs_event {
+	unsigned long fetch_ts;
+	u32 ts;
+	u16 width;
+	u8 engine;
+};
+
+#define MT_DFS_EVENT_BUFLEN		256
+struct mt76x02_dfs_event_rb {
+	struct mt76x02_dfs_event data[MT_DFS_EVENT_BUFLEN];
+	int h_rb, t_rb;
+};
+
+struct mt76x02_dfs_sequence {
+	struct list_head head;
+	u32 first_ts;
+	u32 last_ts;
+	u32 pri;
+	u16 count;
+	u8 engine;
+};
+
+struct mt76x02_dfs_hw_pulse {
+	u8 engine;
+	u32 period;
+	u32 w1;
+	u32 w2;
+	u32 burst;
+};
+
+struct mt76x02_dfs_sw_detector_params {
+	u32 min_pri;
+	u32 max_pri;
+	u32 pri_margin;
+};
+
+struct mt76x02_dfs_engine_stats {
+	u32 hw_pattern;
+	u32 hw_pulse_discarded;
+	u32 sw_pattern;
+};
+
+struct mt76x02_dfs_seq_stats {
+	u32 seq_pool_len;
+	u32 seq_len;
+};
+
+struct mt76x02_dfs_pattern_detector {
+	enum nl80211_dfs_regions region;
+
+	u8 chirp_pulse_cnt;
+	u32 chirp_pulse_ts;
+
+	struct mt76x02_dfs_sw_detector_params sw_dpd_params;
+	struct mt76x02_dfs_event_rb event_rb[2];
+
+	struct list_head sequences;
+	struct list_head seq_pool;
+	struct mt76x02_dfs_seq_stats seq_stats;
+
+	unsigned long last_sw_check;
+	u32 last_event_ts;
+
+	struct mt76x02_dfs_engine_stats stats[MT_DFS_NUM_ENGINES];
+	struct tasklet_struct dfs_tasklet;
+};
+
+#endif /* __MT76x02_DFS_H */