1 files changed, 104 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath5k/ani.h b/drivers/net/wireless/ath/ath5k/ani.h
new file mode 100644
index 00000000000..55cf26d8522
--- /dev/null
+++ b/drivers/net/wireless/ath/ath5k/ani.h
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2010 Bruno Randolf <br1@einfach.org>
+ *
+ * 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 ANI_H
+#define ANI_H
+
+/* these thresholds are relative to the ATH5K_ANI_LISTEN_PERIOD */
+#define ATH5K_ANI_LISTEN_PERIOD         100
+#define ATH5K_ANI_OFDM_TRIG_HIGH        500
+#define ATH5K_ANI_OFDM_TRIG_LOW         200
+#define ATH5K_ANI_CCK_TRIG_HIGH         200
+#define ATH5K_ANI_CCK_TRIG_LOW          100
+
+/* average beacon RSSI thresholds */
+#define ATH5K_ANI_RSSI_THR_HIGH         40
+#define ATH5K_ANI_RSSI_THR_LOW          7
+
+/* maximum availabe levels */
+#define ATH5K_ANI_MAX_FIRSTEP_LVL       2
+#define ATH5K_ANI_MAX_NOISE_IMM_LVL     1
+
+
+/**
+ * enum ath5k_ani_mode - mode for ANI / noise sensitivity
+ *
+ * @ATH5K_ANI_MODE_OFF: Turn ANI off. This can be useful to just stop the ANI
+ *      algorithm after it has been on auto mode.
+ * ATH5K_ANI_MODE_MANUAL_LOW: Manually set all immunity parameters to low,
+ *      maximizing sensitivity. ANI will not run.
+ * ATH5K_ANI_MODE_MANUAL_HIGH: Manually set all immunity parameters to high,
+ *      minimizing sensitivity. ANI will not run.
+ * ATH5K_ANI_MODE_AUTO: Automatically control immunity parameters based on the
+ *      amount of OFDM and CCK frame errors (default).
+ */
+enum ath5k_ani_mode {
+        ATH5K_ANI_MODE_OFF              = 0,
+        ATH5K_ANI_MODE_MANUAL_LOW       = 1,
+        ATH5K_ANI_MODE_MANUAL_HIGH      = 2,
+        ATH5K_ANI_MODE_AUTO             = 3
+};
+
+
+/**
+ * struct ath5k_ani_state - ANI state and associated counters
+ *
+ * @max_spur_level: the maximum spur level is chip dependent
+ */
+struct ath5k_ani_state {
+        enum ath5k_ani_mode     ani_mode;
+
+        /* state */
+        int                     noise_imm_level;
+        int                     spur_level;
+        int                     firstep_level;
+        bool                    ofdm_weak_sig;
+        bool                    cck_weak_sig;
+
+        int                     max_spur_level;
+
+        /* used by the algorithm */
+        unsigned int            listen_time;
+        unsigned int            ofdm_errors;
+        unsigned int            cck_errors;
+
+        /* debug/statistics only: numbers from last ANI calibration */
+        unsigned int            pfc_tx;
+        unsigned int            pfc_rx;
+        unsigned int            pfc_busy;
+        unsigned int            pfc_cycles;
+        unsigned int            last_listen;
+        unsigned int            last_ofdm_errors;
+        unsigned int            last_cck_errors;
+        unsigned int            sum_ofdm_errors;
+        unsigned int            sum_cck_errors;
+};
+
+void ath5k_ani_init(struct ath5k_hw *ah, enum ath5k_ani_mode mode);
+void ath5k_ani_mib_intr(struct ath5k_hw *ah);
+void ath5k_ani_calibration(struct ath5k_hw *ah);
+void ath5k_ani_phy_error_report(struct ath5k_hw *ah,
+                                enum ath5k_phy_error_code phyerr);
+
+/* for manual control */
+void ath5k_ani_set_noise_immunity_level(struct ath5k_hw *ah, int level);
+void ath5k_ani_set_spur_immunity_level(struct ath5k_hw *ah, int level);
+void ath5k_ani_set_firstep_level(struct ath5k_hw *ah, int level);
+void ath5k_ani_set_ofdm_weak_signal_detection(struct ath5k_hw *ah, bool on);
+void ath5k_ani_set_cck_weak_signal_detection(struct ath5k_hw *ah, bool on);
+
+void ath5k_ani_print_counters(struct ath5k_hw *ah);
+
+#endif /* ANI_H */