1 /* 2 * Copyright (c) 2008-2011 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 #define AR_PHY_CCA_FILTERWINDOW_LENGTH_INIT 3 23 #define AR_PHY_CCA_FILTERWINDOW_LENGTH 5 24 25 #define NUM_NF_READINGS 6 26 #define ATH9K_NF_CAL_HIST_MAX 5 27 28 struct ar5416IniArray { 29 u32 *ia_array; 30 u32 ia_rows; 31 u32 ia_columns; 32 }; 33 34 #define INIT_INI_ARRAY(iniarray, array, rows, columns) do { \ 35 (iniarray)->ia_array = (u32 *)(array); \ 36 (iniarray)->ia_rows = (rows); \ 37 (iniarray)->ia_columns = (columns); \ 38 } while (0) 39 40 #define INI_RA(iniarray, row, column) \ 41 (((iniarray)->ia_array)[(row) * ((iniarray)->ia_columns) + (column)]) 42 43 #define INIT_CAL(_perCal) do { \ 44 (_perCal)->calState = CAL_WAITING; \ 45 (_perCal)->calNext = NULL; \ 46 } while (0) 47 48 #define INSERT_CAL(_ahp, _perCal) \ 49 do { \ 50 if ((_ahp)->cal_list_last == NULL) { \ 51 (_ahp)->cal_list = \ 52 (_ahp)->cal_list_last = (_perCal); \ 53 ((_ahp)->cal_list_last)->calNext = (_perCal); \ 54 } else { \ 55 ((_ahp)->cal_list_last)->calNext = (_perCal); \ 56 (_ahp)->cal_list_last = (_perCal); \ 57 (_perCal)->calNext = (_ahp)->cal_list; \ 58 } \ 59 } while (0) 60 61 enum ath9k_cal_state { 62 CAL_INACTIVE, 63 CAL_WAITING, 64 CAL_RUNNING, 65 CAL_DONE 66 }; 67 68 #define MIN_CAL_SAMPLES 1 69 #define MAX_CAL_SAMPLES 64 70 #define INIT_LOG_COUNT 5 71 #define PER_MIN_LOG_COUNT 2 72 #define PER_MAX_LOG_COUNT 10 73 74 struct ath9k_percal_data { 75 u32 calType; 76 u32 calNumSamples; 77 u32 calCountMax; 78 void (*calCollect) (struct ath_hw *); 79 void (*calPostProc) (struct ath_hw *, u8); 80 }; 81 82 struct ath9k_cal_list { 83 const struct ath9k_percal_data *calData; 84 enum ath9k_cal_state calState; 85 struct ath9k_cal_list *calNext; 86 }; 87 88 struct ath9k_nfcal_hist { 89 int16_t nfCalBuffer[ATH9K_NF_CAL_HIST_MAX]; 90 u8 currIndex; 91 int16_t privNF; 92 u8 invalidNFcount; 93 }; 94 95 #define MAX_PACAL_SKIPCOUNT 8 96 struct ath9k_pacal_info{ 97 int32_t prev_offset; /* Previous value of PA offset value */ 98 int8_t max_skipcount; /* Max No. of times PACAL can be skipped */ 99 int8_t skipcount; /* No. of times the PACAL to be skipped */ 100 }; 101 102 bool ath9k_hw_reset_calvalid(struct ath_hw *ah); 103 void ath9k_hw_start_nfcal(struct ath_hw *ah, bool update); 104 void ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan); 105 bool ath9k_hw_getnf(struct ath_hw *ah, struct ath9k_channel *chan); 106 void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah, 107 struct ath9k_channel *chan); 108 void ath9k_hw_bstuck_nfcal(struct ath_hw *ah); 109 void ath9k_hw_reset_calibration(struct ath_hw *ah, 110 struct ath9k_cal_list *currCal); 111 112 113 #endif /* CALIB_H */ 114