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 #include "hw.h" 21 22 extern const struct ath9k_percal_data iq_cal_multi_sample; 23 extern const struct ath9k_percal_data iq_cal_single_sample; 24 extern const struct ath9k_percal_data adc_gain_cal_multi_sample; 25 extern const struct ath9k_percal_data adc_gain_cal_single_sample; 26 extern const struct ath9k_percal_data adc_dc_cal_multi_sample; 27 extern const struct ath9k_percal_data adc_dc_cal_single_sample; 28 extern const struct ath9k_percal_data adc_init_dc_cal; 29 30 #define AR_PHY_CCA_MAX_AR5416_GOOD_VALUE -85 31 #define AR_PHY_CCA_MAX_AR9280_GOOD_VALUE -112 32 #define AR_PHY_CCA_MAX_AR9285_GOOD_VALUE -118 33 #define AR_PHY_CCA_MAX_AR9287_GOOD_VALUE -118 34 #define AR_PHY_CCA_MAX_HIGH_VALUE -62 35 #define AR_PHY_CCA_MIN_BAD_VALUE -140 36 #define AR_PHY_CCA_FILTERWINDOW_LENGTH_INIT 3 37 #define AR_PHY_CCA_FILTERWINDOW_LENGTH 5 38 39 #define NUM_NF_READINGS 6 40 #define ATH9K_NF_CAL_HIST_MAX 5 41 42 struct ar5416IniArray { 43 u32 *ia_array; 44 u32 ia_rows; 45 u32 ia_columns; 46 }; 47 48 #define INIT_INI_ARRAY(iniarray, array, rows, columns) do { \ 49 (iniarray)->ia_array = (u32 *)(array); \ 50 (iniarray)->ia_rows = (rows); \ 51 (iniarray)->ia_columns = (columns); \ 52 } while (0) 53 54 #define INI_RA(iniarray, row, column) \ 55 (((iniarray)->ia_array)[(row) * ((iniarray)->ia_columns) + (column)]) 56 57 #define INIT_CAL(_perCal) do { \ 58 (_perCal)->calState = CAL_WAITING; \ 59 (_perCal)->calNext = NULL; \ 60 } while (0) 61 62 #define INSERT_CAL(_ahp, _perCal) \ 63 do { \ 64 if ((_ahp)->cal_list_last == NULL) { \ 65 (_ahp)->cal_list = \ 66 (_ahp)->cal_list_last = (_perCal); \ 67 ((_ahp)->cal_list_last)->calNext = (_perCal); \ 68 } else { \ 69 ((_ahp)->cal_list_last)->calNext = (_perCal); \ 70 (_ahp)->cal_list_last = (_perCal); \ 71 (_perCal)->calNext = (_ahp)->cal_list; \ 72 } \ 73 } while (0) 74 75 enum ath9k_cal_types { 76 ADC_DC_INIT_CAL = 0x1, 77 ADC_GAIN_CAL = 0x2, 78 ADC_DC_CAL = 0x4, 79 IQ_MISMATCH_CAL = 0x8 80 }; 81 82 enum ath9k_cal_state { 83 CAL_INACTIVE, 84 CAL_WAITING, 85 CAL_RUNNING, 86 CAL_DONE 87 }; 88 89 #define MIN_CAL_SAMPLES 1 90 #define MAX_CAL_SAMPLES 64 91 #define INIT_LOG_COUNT 5 92 #define PER_MIN_LOG_COUNT 2 93 #define PER_MAX_LOG_COUNT 10 94 95 struct ath9k_percal_data { 96 enum ath9k_cal_types calType; 97 u32 calNumSamples; 98 u32 calCountMax; 99 void (*calCollect) (struct ath_hw *); 100 void (*calPostProc) (struct ath_hw *, u8); 101 }; 102 103 struct ath9k_cal_list { 104 const struct ath9k_percal_data *calData; 105 enum ath9k_cal_state calState; 106 struct ath9k_cal_list *calNext; 107 }; 108 109 struct ath9k_nfcal_hist { 110 int16_t nfCalBuffer[ATH9K_NF_CAL_HIST_MAX]; 111 u8 currIndex; 112 int16_t privNF; 113 u8 invalidNFcount; 114 }; 115 116 #define MAX_PACAL_SKIPCOUNT 8 117 struct ath9k_pacal_info{ 118 int32_t prev_offset; /* Previous value of PA offset value */ 119 int8_t max_skipcount; /* Max No. of times PACAL can be skipped */ 120 int8_t skipcount; /* No. of times the PACAL to be skipped */ 121 }; 122 123 bool ath9k_hw_reset_calvalid(struct ath_hw *ah); 124 void ath9k_hw_start_nfcal(struct ath_hw *ah); 125 void ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan); 126 int16_t ath9k_hw_getnf(struct ath_hw *ah, 127 struct ath9k_channel *chan); 128 void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah); 129 s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan); 130 bool ath9k_hw_calibrate(struct ath_hw *ah, struct ath9k_channel *chan, 131 u8 rxchainmask, bool longcal); 132 bool ath9k_hw_init_cal(struct ath_hw *ah, 133 struct ath9k_channel *chan); 134 135 #endif /* CALIB_H */ 136