[ath9k] Add ath9k driver

Signed-off-by: Michael Brown <mcb30@ipxe.org>

src/drivers/net/ath/ath9k/calib.h

@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2008-2011 Atheros Communications Inc.
+ *
+ * Modified for iPXE by Scott K Logan <logans@cottsay.net> July 2011
+ * Original from Linux kernel 3.0.1
+ *
+ * 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 CALIB_H
+#define CALIB_H
+
+#include "hw.h"
+
+#define AR_PHY_CCA_FILTERWINDOW_LENGTH_INIT     3
+#define AR_PHY_CCA_FILTERWINDOW_LENGTH          5
+
+#define NUM_NF_READINGS       6
+#define ATH9K_NF_CAL_HIST_MAX 5
+
+struct ar5416IniArray {
+	u32 *ia_array;
+	u32 ia_rows;
+	u32 ia_columns;
+};
+
+#define INIT_INI_ARRAY(iniarray, array, rows, columns) do {	\
+		(iniarray)->ia_array = (u32 *)(array);		\
+		(iniarray)->ia_rows = (rows);			\
+		(iniarray)->ia_columns = (columns);		\
+	} while (0)
+
+#define INI_RA(iniarray, row, column) \
+	(((iniarray)->ia_array)[(row) *	((iniarray)->ia_columns) + (column)])
+
+#define INIT_CAL(_perCal) do {				\
+		(_perCal)->calState = CAL_WAITING;	\
+		(_perCal)->calNext = NULL;		\
+	} while (0)
+
+#define INSERT_CAL(_ahp, _perCal)					\
+	do {								\
+		if ((_ahp)->cal_list_last == NULL) {			\
+			(_ahp)->cal_list =				\
+				(_ahp)->cal_list_last = (_perCal);	\
+			((_ahp)->cal_list_last)->calNext = (_perCal); \
+		} else {						\
+			((_ahp)->cal_list_last)->calNext = (_perCal); \
+			(_ahp)->cal_list_last = (_perCal);		\
+			(_perCal)->calNext = (_ahp)->cal_list;	\
+		}							\
+	} while (0)
+
+enum ath9k_cal_state {
+	CAL_INACTIVE,
+	CAL_WAITING,
+	CAL_RUNNING,
+	CAL_DONE
+};
+
+#define MIN_CAL_SAMPLES     1
+#define MAX_CAL_SAMPLES    64
+#define INIT_LOG_COUNT      5
+#define PER_MIN_LOG_COUNT   2
+#define PER_MAX_LOG_COUNT  10
+
+struct ath9k_percal_data {
+	u32 calType;
+	u32 calNumSamples;
+	u32 calCountMax;
+	void (*calCollect) (struct ath_hw *);
+	void (*calPostProc) (struct ath_hw *, u8);
+};
+
+struct ath9k_cal_list {
+	const struct ath9k_percal_data *calData;
+	enum ath9k_cal_state calState;
+	struct ath9k_cal_list *calNext;
+};
+
+struct ath9k_nfcal_hist {
+	int16_t nfCalBuffer[ATH9K_NF_CAL_HIST_MAX];
+	u8 currIndex;
+	int16_t privNF;
+	u8 invalidNFcount;
+};
+
+#define MAX_PACAL_SKIPCOUNT 8
+struct ath9k_pacal_info{
+	int32_t prev_offset;	/* Previous value of PA offset value */
+	int8_t max_skipcount;	/* Max No. of times PACAL can be skipped */
+	int8_t skipcount;	/* No. of times the PACAL to be skipped */
+};
+
+int ath9k_hw_reset_calvalid(struct ath_hw *ah);
+void ath9k_hw_start_nfcal(struct ath_hw *ah, int update);
+void ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan);
+int ath9k_hw_getnf(struct ath_hw *ah, struct ath9k_channel *chan);
+void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah,
+				  struct ath9k_channel *chan);
+void ath9k_hw_reset_calibration(struct ath_hw *ah,
+				struct ath9k_cal_list *currCal);
+
+
+#endif /* CALIB_H */