1 /* 2 * Copyright (c) 2008-2009 Atheros Communications Inc. 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #ifndef CALIB_H 18 #define CALIB_H 19 20 extern const struct hal_percal_data iq_cal_multi_sample; 21 extern const struct hal_percal_data iq_cal_single_sample; 22 extern const struct hal_percal_data adc_gain_cal_multi_sample; 23 extern const struct hal_percal_data adc_gain_cal_single_sample; 24 extern const struct hal_percal_data adc_dc_cal_multi_sample; 25 extern const struct hal_percal_data adc_dc_cal_single_sample; 26 extern const struct hal_percal_data adc_init_dc_cal; 27 28 #define AR_PHY_CCA_MAX_GOOD_VALUE -85 29 #define AR_PHY_CCA_MAX_HIGH_VALUE -62 30 #define AR_PHY_CCA_MIN_BAD_VALUE -140 31 #define AR_PHY_CCA_FILTERWINDOW_LENGTH_INIT 3 32 #define AR_PHY_CCA_FILTERWINDOW_LENGTH 5 33 34 #define NUM_NF_READINGS 6 35 #define ATH9K_NF_CAL_HIST_MAX 5 36 37 struct ar5416IniArray { 38 u32 *ia_array; 39 u32 ia_rows; 40 u32 ia_columns; 41 }; 42 43 #define INIT_INI_ARRAY(iniarray, array, rows, columns) do { \ 44 (iniarray)->ia_array = (u32 *)(array); \ 45 (iniarray)->ia_rows = (rows); \ 46 (iniarray)->ia_columns = (columns); \ 47 } while (0) 48 49 #define INI_RA(iniarray, row, column) \ 50 (((iniarray)->ia_array)[(row) * ((iniarray)->ia_columns) + (column)]) 51 52 #define INIT_CAL(_perCal) do { \ 53 (_perCal)->calState = CAL_WAITING; \ 54 (_perCal)->calNext = NULL; \ 55 } while (0) 56 57 #define INSERT_CAL(_ahp, _perCal) \ 58 do { \ 59 if ((_ahp)->cal_list_last == NULL) { \ 60 (_ahp)->cal_list = \ 61 (_ahp)->cal_list_last = (_perCal); \ 62 ((_ahp)->cal_list_last)->calNext = (_perCal); \ 63 } else { \ 64 ((_ahp)->cal_list_last)->calNext = (_perCal); \ 65 (_ahp)->cal_list_last = (_perCal); \ 66 (_perCal)->calNext = (_ahp)->cal_list; \ 67 } \ 68 } while (0) 69 70 enum hal_cal_types { 71 ADC_DC_INIT_CAL = 0x1, 72 ADC_GAIN_CAL = 0x2, 73 ADC_DC_CAL = 0x4, 74 IQ_MISMATCH_CAL = 0x8 75 }; 76 77 enum hal_cal_state { 78 CAL_INACTIVE, 79 CAL_WAITING, 80 CAL_RUNNING, 81 CAL_DONE 82 }; 83 84 #define MIN_CAL_SAMPLES 1 85 #define MAX_CAL_SAMPLES 64 86 #define INIT_LOG_COUNT 5 87 #define PER_MIN_LOG_COUNT 2 88 #define PER_MAX_LOG_COUNT 10 89 90 struct hal_percal_data { 91 enum hal_cal_types calType; 92 u32 calNumSamples; 93 u32 calCountMax; 94 void (*calCollect) (struct ath_hw *); 95 void (*calPostProc) (struct ath_hw *, u8); 96 }; 97 98 struct hal_cal_list { 99 const struct hal_percal_data *calData; 100 enum hal_cal_state calState; 101 struct hal_cal_list *calNext; 102 }; 103 104 struct ath9k_nfcal_hist { 105 int16_t nfCalBuffer[ATH9K_NF_CAL_HIST_MAX]; 106 u8 currIndex; 107 int16_t privNF; 108 u8 invalidNFcount; 109 }; 110 111 bool ath9k_hw_reset_calvalid(struct ath_hw *ah); 112 void ath9k_hw_start_nfcal(struct ath_hw *ah); 113 void ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan); 114 int16_t ath9k_hw_getnf(struct ath_hw *ah, 115 struct ath9k_channel *chan); 116 void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah); 117 s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan); 118 bool ath9k_hw_calibrate(struct ath_hw *ah, struct ath9k_channel *chan, 119 u8 rxchainmask, bool longcal); 120 bool ath9k_hw_init_cal(struct ath_hw *ah, 121 struct ath9k_channel *chan); 122 123 #endif /* CALIB_H */ 124