diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/calib.h')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/calib.h | 123 |
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 new file mode 100644 index 00000000000..fe5367f1414 --- /dev/null +++ b/drivers/net/wireless/ath/ath9k/calib.h @@ -0,0 +1,123 @@ +/* + * 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 ath9k_percal_data iq_cal_multi_sample; +extern const struct ath9k_percal_data iq_cal_single_sample; +extern const struct ath9k_percal_data adc_gain_cal_multi_sample; +extern const struct ath9k_percal_data adc_gain_cal_single_sample; +extern const struct ath9k_percal_data adc_dc_cal_multi_sample; +extern const struct ath9k_percal_data adc_dc_cal_single_sample; +extern const struct ath9k_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 ath9k_cal_types { + ADC_DC_INIT_CAL = 0x1, + ADC_GAIN_CAL = 0x2, + ADC_DC_CAL = 0x4, + IQ_MISMATCH_CAL = 0x8 +}; + +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 { + enum ath9k_cal_types 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; +}; + +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 ath9k_hw_init_cal(struct ath_hw *ah, + struct ath9k_channel *chan); + +#endif /* CALIB_H */ |