1 /* 2 * Copyright (c) 2008-2011 Atheros Communications Inc. 3 * 4 * Modified for iPXE by Scott K Logan <logans@cottsay.net> July 2011 5 * Original from Linux kernel 3.0.1 6 * 7 * Permission to use, copy, modify, and/or distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 #ifndef CALIB_H 21 #define CALIB_H 22 23 FILE_LICENCE ( BSD2 ); 24 25 #include "hw.h" 26 27 #define AR_PHY_CCA_FILTERWINDOW_LENGTH_INIT 3 28 #define AR_PHY_CCA_FILTERWINDOW_LENGTH 5 29 30 #define NUM_NF_READINGS 6 31 #define ATH9K_NF_CAL_HIST_MAX 5 32 33 struct ar5416IniArray { 34 u32 *ia_array; 35 u32 ia_rows; 36 u32 ia_columns; 37 }; 38 39 #define INIT_INI_ARRAY(iniarray, array, rows, columns) do { \ 40 (iniarray)->ia_array = (u32 *)(array); \ 41 (iniarray)->ia_rows = (rows); \ 42 (iniarray)->ia_columns = (columns); \ 43 } while (0) 44 45 #define INI_RA(iniarray, row, column) \ 46 (((iniarray)->ia_array)[(row) * ((iniarray)->ia_columns) + (column)]) 47 48 #define INIT_CAL(_perCal) do { \ 49 (_perCal)->calState = CAL_WAITING; \ 50 (_perCal)->calNext = NULL; \ 51 } while (0) 52 53 #define INSERT_CAL(_ahp, _perCal) \ 54 do { \ 55 if ((_ahp)->cal_list_last == NULL) { \ 56 (_ahp)->cal_list = \ 57 (_ahp)->cal_list_last = (_perCal); \ 58 ((_ahp)->cal_list_last)->calNext = (_perCal); \ 59 } else { \ 60 ((_ahp)->cal_list_last)->calNext = (_perCal); \ 61 (_ahp)->cal_list_last = (_perCal); \ 62 (_perCal)->calNext = (_ahp)->cal_list; \ 63 } \ 64 } while (0) 65 66 enum ath9k_cal_state { 67 CAL_INACTIVE, 68 CAL_WAITING, 69 CAL_RUNNING, 70 CAL_DONE 71 }; 72 73 #define MIN_CAL_SAMPLES 1 74 #define MAX_CAL_SAMPLES 64 75 #define INIT_LOG_COUNT 5 76 #define PER_MIN_LOG_COUNT 2 77 #define PER_MAX_LOG_COUNT 10 78 79 struct ath9k_percal_data { 80 u32 calType; 81 u32 calNumSamples; 82 u32 calCountMax; 83 void (*calCollect) (struct ath_hw *); 84 void (*calPostProc) (struct ath_hw *, u8); 85 }; 86 87 struct ath9k_cal_list { 88 const struct ath9k_percal_data *calData; 89 enum ath9k_cal_state calState; 90 struct ath9k_cal_list *calNext; 91 }; 92 93 struct ath9k_nfcal_hist { 94 int16_t nfCalBuffer[ATH9K_NF_CAL_HIST_MAX]; 95 u8 currIndex; 96 int16_t privNF; 97 u8 invalidNFcount; 98 }; 99 100 #define MAX_PACAL_SKIPCOUNT 8 101 struct ath9k_pacal_info{ 102 int32_t prev_offset; /* Previous value of PA offset value */ 103 int8_t max_skipcount; /* Max No. of times PACAL can be skipped */ 104 int8_t skipcount; /* No. of times the PACAL to be skipped */ 105 }; 106 107 int ath9k_hw_reset_calvalid(struct ath_hw *ah); 108 void ath9k_hw_start_nfcal(struct ath_hw *ah, int update); 109 void ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan); 110 int ath9k_hw_getnf(struct ath_hw *ah, struct ath9k_channel *chan); 111 void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah, 112 struct ath9k_channel *chan); 113 void ath9k_hw_reset_calibration(struct ath_hw *ah, 114 struct ath9k_cal_list *currCal); 115 116 117 #endif /* CALIB_H */ 118