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-rw-r--r--drivers/net/wireless/ath/ath9k/calib.h123
1 files changed, 123 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/calib.h b/drivers/net/wireless/ath/ath9k/calib.h
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+++ b/drivers/net/wireless/ath/ath9k/calib.h
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+/*
+ * Copyright (c) 2008-2011 Atheros Communications Inc.
+ *
+ * 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 5
+
+/* Internal noise floor can vary by about 6db depending on the frequency */
+#define ATH9K_NF_CAL_NOISE_THRESH 6
+
+#define NUM_NF_READINGS 6
+#define ATH9K_NF_CAL_HIST_MAX 5
+
+struct ar5416IniArray {
+ u32 *ia_array;
+ u32 ia_rows;
+ u32 ia_columns;
+};
+
+#define STATIC_INI_ARRAY(array) { \
+ .ia_array = (u32 *)(array), \
+ .ia_rows = ARRAY_SIZE(array), \
+ .ia_columns = ARRAY_SIZE(array[0]), \
+ }
+
+#define INIT_INI_ARRAY(iniarray, array) do { \
+ (iniarray)->ia_array = (u32 *)(array); \
+ (iniarray)->ia_rows = ARRAY_SIZE(array); \
+ (iniarray)->ia_columns = ARRAY_SIZE(array[0]); \
+ } 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 */
+};
+
+bool ath9k_hw_reset_calvalid(struct ath_hw *ah);
+void ath9k_hw_start_nfcal(struct ath_hw *ah, bool update);
+int ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan);
+bool 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_bstuck_nfcal(struct ath_hw *ah);
+void ath9k_hw_reset_calibration(struct ath_hw *ah,
+ struct ath9k_cal_list *currCal);
+s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan,
+ s16 nf);
+
+
+#endif /* CALIB_H */