2 * Copyright (c) 2008-2011 Atheros Communications Inc.
4 * Modified for iPXE by Scott K Logan <logans@cottsay.net> July 2011
5 * Original from Linux kernel 3.0.1
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.
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.
23 FILE_LICENCE ( BSD2 );
27 #define AR_PHY_CCA_FILTERWINDOW_LENGTH_INIT 3
28 #define AR_PHY_CCA_FILTERWINDOW_LENGTH 5
30 #define NUM_NF_READINGS 6
31 #define ATH9K_NF_CAL_HIST_MAX 5
33 struct ar5416IniArray {
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); \
45 #define INI_RA(iniarray, row, column) \
46 (((iniarray)->ia_array)[(row) * ((iniarray)->ia_columns) + (column)])
48 #define INIT_CAL(_perCal) do { \
49 (_perCal)->calState = CAL_WAITING; \
50 (_perCal)->calNext = NULL; \
53 #define INSERT_CAL(_ahp, _perCal) \
55 if ((_ahp)->cal_list_last == NULL) { \
57 (_ahp)->cal_list_last = (_perCal); \
58 ((_ahp)->cal_list_last)->calNext = (_perCal); \
60 ((_ahp)->cal_list_last)->calNext = (_perCal); \
61 (_ahp)->cal_list_last = (_perCal); \
62 (_perCal)->calNext = (_ahp)->cal_list; \
66 enum ath9k_cal_state {
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
79 struct ath9k_percal_data {
83 void (*calCollect) (struct ath_hw *);
84 void (*calPostProc) (struct ath_hw *, u8);
87 struct ath9k_cal_list {
88 const struct ath9k_percal_data *calData;
89 enum ath9k_cal_state calState;
90 struct ath9k_cal_list *calNext;
93 struct ath9k_nfcal_hist {
94 int16_t nfCalBuffer[ATH9K_NF_CAL_HIST_MAX];
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 */
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);