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 5 23 24 #define NUM_NF_READINGS 6 25 #define ATH9K_NF_CAL_HIST_MAX 5 26 27 struct ar5416IniArray { 28 u32 *ia_array; 29 u32 ia_rows; 30 u32 ia_columns; 31 }; 32 33 #define INIT_INI_ARRAY(iniarray, array, rows, columns) do { \ 34 (iniarray)->ia_array = (u32 *)(array); \ 35 (iniarray)->ia_rows = (rows); \ 36 (iniarray)->ia_columns = (columns); \ 37 } while (0) 38 39 #define INI_RA(iniarray, row, column) \ 40 (((iniarray)->ia_array)[(row) * ((iniarray)->ia_columns) + (column)]) 41 42 #define INIT_CAL(_perCal) do { \ 43 (_perCal)->calState = CAL_WAITING; \ 44 (_perCal)->calNext = NULL; \ 45 } while (0) 46 47 #define INSERT_CAL(_ahp, _perCal) \ 48 do { \ 49 if ((_ahp)->cal_list_last == NULL) { \ 50 (_ahp)->cal_list = \ 51 (_ahp)->cal_list_last = (_perCal); \ 52 ((_ahp)->cal_list_last)->calNext = (_perCal); \ 53 } else { \ 54 ((_ahp)->cal_list_last)->calNext = (_perCal); \ 55 (_ahp)->cal_list_last = (_perCal); \ 56 (_perCal)->calNext = (_ahp)->cal_list; \ 57 } \ 58 } while (0) 59 60 enum ath9k_cal_state { 61 CAL_INACTIVE, 62 CAL_WAITING, 63 CAL_RUNNING, 64 CAL_DONE 65 }; 66 67 #define MIN_CAL_SAMPLES 1 68 #define MAX_CAL_SAMPLES 64 69 #define INIT_LOG_COUNT 5 70 #define PER_MIN_LOG_COUNT 2 71 #define PER_MAX_LOG_COUNT 10 72 73 struct ath9k_percal_data { 74 u32 calType; 75 u32 calNumSamples; 76 u32 calCountMax; 77 void (*calCollect) (struct ath_hw *); 78 void (*calPostProc) (struct ath_hw *, u8); 79 }; 80 81 struct ath9k_cal_list { 82 const struct ath9k_percal_data *calData; 83 enum ath9k_cal_state calState; 84 struct ath9k_cal_list *calNext; 85 }; 86 87 struct ath9k_nfcal_hist { 88 int16_t nfCalBuffer[ATH9K_NF_CAL_HIST_MAX]; 89 u8 currIndex; 90 int16_t privNF; 91 u8 invalidNFcount; 92 }; 93 94 #define MAX_PACAL_SKIPCOUNT 8 95 struct ath9k_pacal_info{ 96 int32_t prev_offset; /* Previous value of PA offset value */ 97 int8_t max_skipcount; /* Max No. of times PACAL can be skipped */ 98 int8_t skipcount; /* No. of times the PACAL to be skipped */ 99 }; 100 101 bool ath9k_hw_reset_calvalid(struct ath_hw *ah); 102 void ath9k_hw_start_nfcal(struct ath_hw *ah, bool update); 103 void ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan); 104 bool ath9k_hw_getnf(struct ath_hw *ah, struct ath9k_channel *chan); 105 void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah, 106 struct ath9k_channel *chan); 107 void ath9k_hw_bstuck_nfcal(struct ath_hw *ah); 108 void ath9k_hw_reset_calibration(struct ath_hw *ah, 109 struct ath9k_cal_list *currCal); 110 s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan); 111 112 113 #endif /* CALIB_H */ 114