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 | /* Internal noise floor can vary by about 6db depending on the frequency */ |
25 | #define ATH9K_NF_CAL_NOISE_THRESH 6 |
26 | |
27 | #define NUM_NF_READINGS 6 |
28 | #define ATH9K_NF_CAL_HIST_MAX 5 |
29 | |
30 | struct ar5416IniArray { |
31 | u32 *ia_array; |
32 | u32 ia_rows; |
33 | u32 ia_columns; |
34 | }; |
35 | |
36 | #define STATIC_INI_ARRAY(array) { \ |
37 | .ia_array = (u32 *)(array), \ |
38 | .ia_rows = ARRAY_SIZE(array), \ |
39 | .ia_columns = ARRAY_SIZE(array[0]), \ |
40 | } |
41 | |
42 | #define INIT_INI_ARRAY(iniarray, array) do { \ |
43 | (iniarray)->ia_array = (u32 *)(array); \ |
44 | (iniarray)->ia_rows = ARRAY_SIZE(array); \ |
45 | (iniarray)->ia_columns = ARRAY_SIZE(array[0]); \ |
46 | } while (0) |
47 | |
48 | #define INI_RA(iniarray, row, column) \ |
49 | (((iniarray)->ia_array)[(row) * ((iniarray)->ia_columns) + (column)]) |
50 | |
51 | #define INIT_CAL(_perCal) do { \ |
52 | (_perCal)->calState = CAL_WAITING; \ |
53 | (_perCal)->calNext = NULL; \ |
54 | } while (0) |
55 | |
56 | #define INSERT_CAL(_ahp, _perCal) \ |
57 | do { \ |
58 | if ((_ahp)->cal_list_last == NULL) { \ |
59 | (_ahp)->cal_list = \ |
60 | (_ahp)->cal_list_last = (_perCal); \ |
61 | ((_ahp)->cal_list_last)->calNext = (_perCal); \ |
62 | } else { \ |
63 | ((_ahp)->cal_list_last)->calNext = (_perCal); \ |
64 | (_ahp)->cal_list_last = (_perCal); \ |
65 | (_perCal)->calNext = (_ahp)->cal_list; \ |
66 | } \ |
67 | } while (0) |
68 | |
69 | enum ath9k_cal_state { |
70 | CAL_INACTIVE, |
71 | CAL_WAITING, |
72 | CAL_RUNNING, |
73 | CAL_DONE |
74 | }; |
75 | |
76 | #define MIN_CAL_SAMPLES 1 |
77 | #define MAX_CAL_SAMPLES 64 |
78 | #define INIT_LOG_COUNT 5 |
79 | #define PER_MIN_LOG_COUNT 2 |
80 | #define PER_MAX_LOG_COUNT 10 |
81 | |
82 | struct ath9k_percal_data { |
83 | u32 calType; |
84 | u32 calNumSamples; |
85 | u32 calCountMax; |
86 | void (*calCollect) (struct ath_hw *); |
87 | void (*calPostProc) (struct ath_hw *, u8); |
88 | }; |
89 | |
90 | struct ath9k_cal_list { |
91 | const struct ath9k_percal_data *calData; |
92 | enum ath9k_cal_state calState; |
93 | struct ath9k_cal_list *calNext; |
94 | }; |
95 | |
96 | struct ath9k_nfcal_hist { |
97 | int16_t nfCalBuffer[ATH9K_NF_CAL_HIST_MAX]; |
98 | u8 currIndex; |
99 | int16_t privNF; |
100 | u8 invalidNFcount; |
101 | }; |
102 | |
103 | #define MAX_PACAL_SKIPCOUNT 8 |
104 | struct ath9k_pacal_info{ |
105 | int32_t prev_offset; /* Previous value of PA offset value */ |
106 | int8_t max_skipcount; /* Max No. of times PACAL can be skipped */ |
107 | int8_t skipcount; /* No. of times the PACAL to be skipped */ |
108 | }; |
109 | |
110 | bool ath9k_hw_reset_calvalid(struct ath_hw *ah); |
111 | void ath9k_hw_start_nfcal(struct ath_hw *ah, bool update); |
112 | int ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan); |
113 | bool ath9k_hw_getnf(struct ath_hw *ah, struct ath9k_channel *chan); |
114 | void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah, |
115 | struct ath9k_channel *chan); |
116 | void ath9k_hw_bstuck_nfcal(struct ath_hw *ah); |
117 | void ath9k_hw_reset_calibration(struct ath_hw *ah, |
118 | struct ath9k_cal_list *currCal); |
119 | s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan, |
120 | s16 nf); |
121 | |
122 | |
123 | #endif /* CALIB_H */ |
124 | |