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-rw-r--r--drivers/net/wireless/ath/ath9k/calib.h124
1 files changed, 124 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) 2008-2009 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
+
+extern const struct hal_percal_data iq_cal_multi_sample;
+extern const struct hal_percal_data iq_cal_single_sample;
+extern const struct hal_percal_data adc_gain_cal_multi_sample;
+extern const struct hal_percal_data adc_gain_cal_single_sample;
+extern const struct hal_percal_data adc_dc_cal_multi_sample;
+extern const struct hal_percal_data adc_dc_cal_single_sample;
+extern const struct hal_percal_data adc_init_dc_cal;
+
+#define AR_PHY_CCA_MAX_GOOD_VALUE -85
+#define AR_PHY_CCA_MAX_HIGH_VALUE -62
+#define AR_PHY_CCA_MIN_BAD_VALUE -140
+#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 hal_cal_types {
+ ADC_DC_INIT_CAL = 0x1,
+ ADC_GAIN_CAL = 0x2,
+ ADC_DC_CAL = 0x4,
+ IQ_MISMATCH_CAL = 0x8
+};
+
+enum hal_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 hal_percal_data {
+ enum hal_cal_types calType;
+ u32 calNumSamples;
+ u32 calCountMax;
+ void (*calCollect) (struct ath_hw *);
+ void (*calPostProc) (struct ath_hw *, u8);
+};
+
+struct hal_cal_list {
+ const struct hal_percal_data *calData;
+ enum hal_cal_state calState;
+ struct hal_cal_list *calNext;
+};
+
+struct ath9k_nfcal_hist {
+ int16_t nfCalBuffer[ATH9K_NF_CAL_HIST_MAX];
+ u8 currIndex;
+ int16_t privNF;
+ u8 invalidNFcount;
+};
+
+bool ath9k_hw_reset_calvalid(struct ath_hw *ah);
+void ath9k_hw_start_nfcal(struct ath_hw *ah);
+void ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan);
+int16_t ath9k_hw_getnf(struct ath_hw *ah,
+ struct ath9k_channel *chan);
+void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah);
+s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan);
+bool ath9k_hw_calibrate(struct ath_hw *ah, struct ath9k_channel *chan,
+ u8 rxchainmask, bool longcal,
+ bool *isCalDone);
+bool ath9k_hw_init_cal(struct ath_hw *ah,
+ struct ath9k_channel *chan);
+
+#endif /* CALIB_H */