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rtw_rf.c
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/******************************************************************************
*
* Copyright(c) 2007 - 2017 Realtek Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
*****************************************************************************/
#define _RTW_RF_C_
#include <drv_types.h>
#include <hal_data.h>
u8 center_ch_2g[CENTER_CH_2G_NUM] = {
/* G00 */1, 2,
/* G01 */3, 4, 5,
/* G02 */6, 7, 8,
/* G03 */9, 10, 11,
/* G04 */12, 13,
/* G05 */14
};
#define ch_to_cch_2g_idx(ch) ((ch) - 1)
u8 center_ch_2g_40m[CENTER_CH_2G_40M_NUM] = {
3,
4,
5,
6,
7,
8,
9,
10,
11,
};
u8 op_chs_of_cch_2g_40m[CENTER_CH_2G_40M_NUM][2] = {
{1, 5}, /* 3 */
{2, 6}, /* 4 */
{3, 7}, /* 5 */
{4, 8}, /* 6 */
{5, 9}, /* 7 */
{6, 10}, /* 8 */
{7, 11}, /* 9 */
{8, 12}, /* 10 */
{9, 13}, /* 11 */
};
u8 center_ch_5g_all[CENTER_CH_5G_ALL_NUM] = {
/* G00 */36, 38, 40,
42,
/* G01 */44, 46, 48,
/* 50, */
/* G02 */52, 54, 56,
58,
/* G03 */60, 62, 64,
/* G04 */100, 102, 104,
106,
/* G05 */108, 110, 112,
/* 114, */
/* G06 */116, 118, 120,
122,
/* G07 */124, 126, 128,
/* G08 */132, 134, 136,
138,
/* G09 */140, 142, 144,
/* G10 */149, 151, 153,
155,
/* G11 */157, 159, 161,
/* 163, */
/* G12 */165, 167, 169,
171,
/* G13 */173, 175, 177
};
u8 center_ch_5g_20m[CENTER_CH_5G_20M_NUM] = {
/* G00 */36, 40,
/* G01 */44, 48,
/* G02 */52, 56,
/* G03 */60, 64,
/* G04 */100, 104,
/* G05 */108, 112,
/* G06 */116, 120,
/* G07 */124, 128,
/* G08 */132, 136,
/* G09 */140, 144,
/* G10 */149, 153,
/* G11 */157, 161,
/* G12 */165, 169,
/* G13 */173, 177
};
#define ch_to_cch_5g_20m_idx(ch) \
( \
((ch) >= 36 && (ch) <= 64) ? (((ch) - 36) >> 2) : \
((ch) >= 100 && (ch) <= 144) ? 8 + (((ch) - 100) >> 2) : \
((ch) >= 149 && (ch) <= 177) ? 20 + (((ch) - 149) >> 2) : 255 \
)
u8 center_ch_5g_40m[CENTER_CH_5G_40M_NUM] = {
/* G00 */38,
/* G01 */46,
/* G02 */54,
/* G03 */62,
/* G04 */102,
/* G05 */110,
/* G06 */118,
/* G07 */126,
/* G08 */134,
/* G09 */142,
/* G10 */151,
/* G11 */159,
/* G12 */167,
/* G13 */175
};
u8 center_ch_5g_20m_40m[CENTER_CH_5G_20M_NUM + CENTER_CH_5G_40M_NUM] = {
/* G00 */36, 38, 40,
/* G01 */44, 46, 48,
/* G02 */52, 54, 56,
/* G03 */60, 62, 64,
/* G04 */100, 102, 104,
/* G05 */108, 110, 112,
/* G06 */116, 118, 120,
/* G07 */124, 126, 128,
/* G08 */132, 134, 136,
/* G09 */140, 142, 144,
/* G10 */149, 151, 153,
/* G11 */157, 159, 161,
/* G12 */165, 167, 169,
/* G13 */173, 175, 177
};
u8 op_chs_of_cch_5g_40m[CENTER_CH_5G_40M_NUM][2] = {
{36, 40}, /* 38 */
{44, 48}, /* 46 */
{52, 56}, /* 54 */
{60, 64}, /* 62 */
{100, 104}, /* 102 */
{108, 112}, /* 110 */
{116, 120}, /* 118 */
{124, 128}, /* 126 */
{132, 136}, /* 134 */
{140, 144}, /* 142 */
{149, 153}, /* 151 */
{157, 161}, /* 159 */
{165, 169}, /* 167 */
{173, 177}, /* 175 */
};
u8 center_ch_5g_80m[CENTER_CH_5G_80M_NUM] = {
/* G00 ~ G01*/42,
/* G02 ~ G03*/58,
/* G04 ~ G05*/106,
/* G06 ~ G07*/122,
/* G08 ~ G09*/138,
/* G10 ~ G11*/155,
/* G12 ~ G13*/171
};
u8 op_chs_of_cch_5g_80m[CENTER_CH_5G_80M_NUM][4] = {
{36, 40, 44, 48}, /* 42 */
{52, 56, 60, 64}, /* 58 */
{100, 104, 108, 112}, /* 106 */
{116, 120, 124, 128}, /* 122 */
{132, 136, 140, 144}, /* 138 */
{149, 153, 157, 161}, /* 155 */
{165, 169, 173, 177}, /* 171 */
};
u8 center_ch_5g_160m[CENTER_CH_5G_160M_NUM] = {
/* G00 ~ G03*/50,
/* G04 ~ G07*/114,
/* G10 ~ G13*/163
};
u8 op_chs_of_cch_5g_160m[CENTER_CH_5G_160M_NUM][8] = {
{36, 40, 44, 48, 52, 56, 60, 64}, /* 50 */
{100, 104, 108, 112, 116, 120, 124, 128}, /* 114 */
{149, 153, 157, 161, 165, 169, 173, 177}, /* 163 */
};
struct center_chs_ent_t {
u8 ch_num;
u8 *chs;
};
struct center_chs_ent_t center_chs_2g_by_bw[] = {
{CENTER_CH_2G_NUM, center_ch_2g},
{CENTER_CH_2G_40M_NUM, center_ch_2g_40m},
};
struct center_chs_ent_t center_chs_5g_by_bw[] = {
{CENTER_CH_5G_20M_NUM, center_ch_5g_20m},
{CENTER_CH_5G_40M_NUM, center_ch_5g_40m},
{CENTER_CH_5G_80M_NUM, center_ch_5g_80m},
{CENTER_CH_5G_160M_NUM, center_ch_5g_160m},
};
/*
* Get center channel of smaller bandwidth by @param cch, @param bw, @param offset
* @cch: the given center channel
* @bw: the given bandwidth
* @offset: the given primary SC offset of the given bandwidth
*
* return center channel of smaller bandiwdth if valid, or 0
*/
u8 rtw_get_scch_by_cch_offset(u8 cch, u8 bw, u8 offset)
{
u8 t_cch = 0;
if (bw == CHANNEL_WIDTH_20) {
t_cch = cch;
goto exit;
}
if (offset == HAL_PRIME_CHNL_OFFSET_DONT_CARE) {
rtw_warn_on(1);
goto exit;
}
/* 2.4G, 40MHz */
if (cch >= 3 && cch <= 11 && bw == CHANNEL_WIDTH_40) {
t_cch = (offset == HAL_PRIME_CHNL_OFFSET_UPPER) ? cch + 2 : cch - 2;
goto exit;
}
/* 5G, 160MHz */
if (cch >= 50 && cch <= 163 && bw == CHANNEL_WIDTH_160) {
t_cch = (offset == HAL_PRIME_CHNL_OFFSET_UPPER) ? cch + 8 : cch - 8;
goto exit;
/* 5G, 80MHz */
} else if (cch >= 42 && cch <= 171 && bw == CHANNEL_WIDTH_80) {
t_cch = (offset == HAL_PRIME_CHNL_OFFSET_UPPER) ? cch + 4 : cch - 4;
goto exit;
/* 5G, 40MHz */
} else if (cch >= 38 && cch <= 175 && bw == CHANNEL_WIDTH_40) {
t_cch = (offset == HAL_PRIME_CHNL_OFFSET_UPPER) ? cch + 2 : cch - 2;
goto exit;
} else {
rtw_warn_on(1);
goto exit;
}
exit:
return t_cch;
}
/*
* Get center channel of smaller bandwidth by @param cch, @param bw, @param opch
* @cch: the given center channel
* @bw: the given bandwidth
* @opch: the given operating channel
*
* return center channel of smaller bandiwdth if valid, or 0
*/
u8 rtw_get_scch_by_cch_opch(u8 cch, u8 bw, u8 opch)
{
u8 offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
if (opch > cch)
offset = HAL_PRIME_CHNL_OFFSET_UPPER;
else if (opch < cch)
offset = HAL_PRIME_CHNL_OFFSET_LOWER;
return rtw_get_scch_by_cch_offset(cch, bw, offset);
}
struct op_chs_ent_t {
u8 ch_num;
u8 *chs;
};
struct op_chs_ent_t op_chs_of_cch_2g_by_bw[] = {
{1, center_ch_2g},
{2, (u8 *)op_chs_of_cch_2g_40m},
};
struct op_chs_ent_t op_chs_of_cch_5g_by_bw[] = {
{1, center_ch_5g_20m},
{2, (u8 *)op_chs_of_cch_5g_40m},
{4, (u8 *)op_chs_of_cch_5g_80m},
{8, (u8 *)op_chs_of_cch_5g_160m},
};
inline u8 center_chs_2g_num(u8 bw)
{
if (bw > CHANNEL_WIDTH_40)
return 0;
return center_chs_2g_by_bw[bw].ch_num;
}
inline u8 center_chs_2g(u8 bw, u8 id)
{
if (bw > CHANNEL_WIDTH_40)
return 0;
if (id >= center_chs_2g_num(bw))
return 0;
return center_chs_2g_by_bw[bw].chs[id];
}
inline u8 center_chs_5g_num(u8 bw)
{
if (bw > CHANNEL_WIDTH_160)
return 0;
return center_chs_5g_by_bw[bw].ch_num;
}
inline u8 center_chs_5g(u8 bw, u8 id)
{
if (bw > CHANNEL_WIDTH_160)
return 0;
if (id >= center_chs_5g_num(bw))
return 0;
return center_chs_5g_by_bw[bw].chs[id];
}
/*
* Get available op channels by @param cch, @param bw
* @cch: the given center channel
* @bw: the given bandwidth
* @op_chs: the pointer to return pointer of op channel array
* @op_ch_num: the pointer to return pointer of op channel number
*
* return valid (1) or not (0)
*/
u8 rtw_get_op_chs_by_cch_bw(u8 cch, u8 bw, u8 **op_chs, u8 *op_ch_num)
{
int i;
struct center_chs_ent_t *c_chs_ent = NULL;
struct op_chs_ent_t *op_chs_ent = NULL;
u8 valid = 1;
if (cch <= 14
&& bw <= CHANNEL_WIDTH_40
) {
c_chs_ent = ¢er_chs_2g_by_bw[bw];
op_chs_ent = &op_chs_of_cch_2g_by_bw[bw];
} else if (cch >= 36 && cch <= 177
&& bw <= CHANNEL_WIDTH_160
) {
c_chs_ent = ¢er_chs_5g_by_bw[bw];
op_chs_ent = &op_chs_of_cch_5g_by_bw[bw];
} else {
valid = 0;
goto exit;
}
for (i = 0; i < c_chs_ent->ch_num; i++)
if (cch == *(c_chs_ent->chs + i))
break;
if (i == c_chs_ent->ch_num) {
valid = 0;
goto exit;
}
*op_chs = op_chs_ent->chs + op_chs_ent->ch_num * i;
*op_ch_num = op_chs_ent->ch_num;
exit:
return valid;
}
u8 rtw_get_offset_by_chbw(u8 ch, u8 bw, u8 *r_offset)
{
u8 valid = 1;
u8 offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
if (bw == CHANNEL_WIDTH_20)
goto exit;
if (bw >= CHANNEL_WIDTH_80 && ch <= 14) {
valid = 0;
goto exit;
}
if (ch >= 1 && ch <= 4)
offset = HAL_PRIME_CHNL_OFFSET_LOWER;
else if (ch >= 5 && ch <= 9) {
if (*r_offset == HAL_PRIME_CHNL_OFFSET_LOWER || *r_offset == HAL_PRIME_CHNL_OFFSET_UPPER)
offset = *r_offset; /* both lower and upper is valid, obey input value */
else
offset = HAL_PRIME_CHNL_OFFSET_UPPER; /* default use upper */
} else if (ch >= 10 && ch <= 13)
offset = HAL_PRIME_CHNL_OFFSET_UPPER;
else if (ch == 14) {
valid = 0; /* ch14 doesn't support 40MHz bandwidth */
goto exit;
} else if (ch >= 36 && ch <= 177) {
switch (ch) {
case 36:
case 44:
case 52:
case 60:
case 100:
case 108:
case 116:
case 124:
case 132:
case 140:
case 149:
case 157:
case 165:
case 173:
offset = HAL_PRIME_CHNL_OFFSET_LOWER;
break;
case 40:
case 48:
case 56:
case 64:
case 104:
case 112:
case 120:
case 128:
case 136:
case 144:
case 153:
case 161:
case 169:
case 177:
offset = HAL_PRIME_CHNL_OFFSET_UPPER;
break;
default:
valid = 0;
break;
}
} else
valid = 0;
exit:
if (valid && r_offset)
*r_offset = offset;
return valid;
}
u8 rtw_get_center_ch(u8 ch, u8 bw, u8 offset)
{
u8 cch = ch;
if (bw == CHANNEL_WIDTH_160) {
if (ch % 4 == 0) {
if (ch >= 36 && ch <= 64)
cch = 50;
else if (ch >= 100 && ch <= 128)
cch = 114;
} else if (ch % 4 == 1) {
if (ch >= 149 && ch <= 177)
cch = 163;
}
} else if (bw == CHANNEL_WIDTH_80) {
if (ch <= 14)
cch = 7; /* special case for 2.4G */
else if (ch % 4 == 0) {
if (ch >= 36 && ch <= 48)
cch = 42;
else if (ch >= 52 && ch <= 64)
cch = 58;
else if (ch >= 100 && ch <= 112)
cch = 106;
else if (ch >= 116 && ch <= 128)
cch = 122;
else if (ch >= 132 && ch <= 144)
cch = 138;
} else if (ch % 4 == 1) {
if (ch >= 149 && ch <= 161)
cch = 155;
else if (ch >= 165 && ch <= 177)
cch = 171;
}
} else if (bw == CHANNEL_WIDTH_40) {
if (offset == HAL_PRIME_CHNL_OFFSET_LOWER)
cch = ch + 2;
else if (offset == HAL_PRIME_CHNL_OFFSET_UPPER)
cch = ch - 2;
} else if (bw == CHANNEL_WIDTH_20
|| bw == CHANNEL_WIDTH_10
|| bw == CHANNEL_WIDTH_5
)
; /* same as ch */
else
rtw_warn_on(1);
return cch;
}
u8 rtw_get_ch_group(u8 ch, u8 *group, u8 *cck_group)
{
BAND_TYPE band = BAND_MAX;
s8 gp = -1, cck_gp = -1;
if (ch <= 14) {
band = BAND_ON_2_4G;
if (1 <= ch && ch <= 2)
gp = 0;
else if (3 <= ch && ch <= 5)
gp = 1;
else if (6 <= ch && ch <= 8)
gp = 2;
else if (9 <= ch && ch <= 11)
gp = 3;
else if (12 <= ch && ch <= 14)
gp = 4;
else
band = BAND_MAX;
if (ch == 14)
cck_gp = 5;
else
cck_gp = gp;
} else {
band = BAND_ON_5G;
if (36 <= ch && ch <= 42)
gp = 0;
else if (44 <= ch && ch <= 48)
gp = 1;
else if (50 <= ch && ch <= 58)
gp = 2;
else if (60 <= ch && ch <= 64)
gp = 3;
else if (100 <= ch && ch <= 106)
gp = 4;
else if (108 <= ch && ch <= 114)
gp = 5;
else if (116 <= ch && ch <= 122)
gp = 6;
else if (124 <= ch && ch <= 130)
gp = 7;
else if (132 <= ch && ch <= 138)
gp = 8;
else if (140 <= ch && ch <= 144)
gp = 9;
else if (149 <= ch && ch <= 155)
gp = 10;
else if (157 <= ch && ch <= 161)
gp = 11;
else if (165 <= ch && ch <= 171)
gp = 12;
else if (173 <= ch && ch <= 177)
gp = 13;
else
band = BAND_MAX;
}
if (band == BAND_MAX
|| (band == BAND_ON_2_4G && cck_gp == -1)
|| gp == -1
) {
RTW_WARN("%s invalid channel:%u", __func__, ch);
rtw_warn_on(1);
goto exit;
}
if (group)
*group = gp;
if (cck_group && band == BAND_ON_2_4G)
*cck_group = cck_gp;
exit:
return band;
}
int rtw_ch2freq(int chan)
{
/* see 802.11 17.3.8.3.2 and Annex J
* there are overlapping channel numbers in 5GHz and 2GHz bands */
/*
* RTK: don't consider the overlapping channel numbers: 5G channel <= 14,
* because we don't support it. simply judge from channel number
*/
if (chan >= 1 && chan <= 14) {
if (chan == 14)
return 2484;
else if (chan < 14)
return 2407 + chan * 5;
} else if (chan >= 36 && chan <= 177)
return 5000 + chan * 5;
return 0; /* not supported */
}
int rtw_freq2ch(int freq)
{
/* see 802.11 17.3.8.3.2 and Annex J */
if (freq == 2484)
return 14;
else if (freq < 2484)
return (freq - 2407) / 5;
else if (freq >= 4910 && freq <= 4980)
return (freq - 4000) / 5;
else if (freq <= 45000) /* DMG band lower limit */
return (freq - 5000) / 5;
else if (freq >= 58320 && freq <= 64800)
return (freq - 56160) / 2160;
else
return 0;
}
bool rtw_chbw_to_freq_range(u8 ch, u8 bw, u8 offset, u32 *hi, u32 *lo)
{
u8 c_ch;
u32 freq;
u32 hi_ret = 0, lo_ret = 0;
bool valid = _FALSE;
if (hi)
*hi = 0;
if (lo)
*lo = 0;
c_ch = rtw_get_center_ch(ch, bw, offset);
freq = rtw_ch2freq(c_ch);
if (!freq) {
rtw_warn_on(1);
goto exit;
}
if (bw == CHANNEL_WIDTH_160) {
hi_ret = freq + 80;
lo_ret = freq - 80;
} else if (bw == CHANNEL_WIDTH_80) {
hi_ret = freq + 40;
lo_ret = freq - 40;
} else if (bw == CHANNEL_WIDTH_40) {
hi_ret = freq + 20;
lo_ret = freq - 20;
} else if (bw == CHANNEL_WIDTH_20) {
hi_ret = freq + 10;
lo_ret = freq - 10;
} else
rtw_warn_on(1);
if (hi)
*hi = hi_ret;
if (lo)
*lo = lo_ret;
valid = _TRUE;
exit:
return valid;
}
const char *const _ch_width_str[CHANNEL_WIDTH_MAX] = {
[CHANNEL_WIDTH_20] = "20MHz",
[CHANNEL_WIDTH_40] = "40MHz",
[CHANNEL_WIDTH_80] = "80MHz",
[CHANNEL_WIDTH_160] = "160MHz",
[CHANNEL_WIDTH_80_80] = "80_80MHz",
[CHANNEL_WIDTH_5] = "5MHz",
[CHANNEL_WIDTH_10] = "10MHz",
};
const u8 _ch_width_to_bw_cap[CHANNEL_WIDTH_MAX] = {
[CHANNEL_WIDTH_20] = BW_CAP_20M,
[CHANNEL_WIDTH_40] = BW_CAP_40M,
[CHANNEL_WIDTH_80] = BW_CAP_80M,
[CHANNEL_WIDTH_160] = BW_CAP_160M,
[CHANNEL_WIDTH_80_80] = BW_CAP_80_80M,
[CHANNEL_WIDTH_5] = BW_CAP_5M,
[CHANNEL_WIDTH_10] = BW_CAP_10M,
};
const char *const _band_str[] = {
"2.4G",
"5G",
"BAND_MAX",
};
const u8 _band_to_band_cap[] = {
BAND_CAP_2G,
BAND_CAP_5G,
0,
};
const char *const _opc_bw_str[OPC_BW_NUM] = {
"20M ", /* OPC_BW20 */
"40M+", /* OPC_BW40PLUS */
"40M-", /* OPC_BW40MINUS */
"80M ", /* OPC_BW80 */
"160M ", /* OPC_BW160 */
"80+80M ", /* OPC_BW80P80 */
};
const u8 _opc_bw_to_ch_width[OPC_BW_NUM] = {
CHANNEL_WIDTH_20, /* OPC_BW20 */
CHANNEL_WIDTH_40, /* OPC_BW40PLUS */
CHANNEL_WIDTH_40, /* OPC_BW40MINUS */
CHANNEL_WIDTH_80, /* OPC_BW80 */
CHANNEL_WIDTH_160, /* OPC_BW160 */
CHANNEL_WIDTH_80_80, /* OPC_BW80P80 */
};
/* global operating class database */
struct op_class_t {
u8 class_id;
BAND_TYPE band;
enum opc_bw bw;
u8 *len_ch_attr;
};
#define OPC_CH_LIST_LEN(_opc) (_opc.len_ch_attr[0])
#define OPC_CH_LIST_CH(_opc, _i) (_opc.len_ch_attr[_i + 1])
#define OP_CLASS_ENT(_class, _band, _bw, _len, arg...) \
{.class_id = _class, .band = _band, .bw = _bw, .len_ch_attr = (uint8_t[_len + 1]) {_len, ##arg},}
/* 802.11-2016 Table E-4, partial */
static const struct op_class_t global_op_class[] = {
/* 2G ch1~13, 20M */
OP_CLASS_ENT(81, BAND_ON_2_4G, OPC_BW20, 13, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13),
/* 2G ch14, 20M */
OP_CLASS_ENT(82, BAND_ON_2_4G, OPC_BW20, 1, 14),
/* 2G, 40M */
OP_CLASS_ENT(83, BAND_ON_2_4G, OPC_BW40PLUS, 9, 1, 2, 3, 4, 5, 6, 7, 8, 9),
OP_CLASS_ENT(84, BAND_ON_2_4G, OPC_BW40MINUS, 9, 5, 6, 7, 8, 9, 10, 11, 12, 13),
/* 5G band 1, 20M & 40M */
OP_CLASS_ENT(115, BAND_ON_5G, OPC_BW20, 4, 36, 40, 44, 48),
OP_CLASS_ENT(116, BAND_ON_5G, OPC_BW40PLUS, 2, 36, 44),
OP_CLASS_ENT(117, BAND_ON_5G, OPC_BW40MINUS, 2, 40, 48),
/* 5G band 2, 20M & 40M */
OP_CLASS_ENT(118, BAND_ON_5G, OPC_BW20, 4, 52, 56, 60, 64),
OP_CLASS_ENT(119, BAND_ON_5G, OPC_BW40PLUS, 2, 52, 60),
OP_CLASS_ENT(120, BAND_ON_5G, OPC_BW40MINUS, 2, 56, 64),
/* 5G band 3, 20M & 40M */
OP_CLASS_ENT(121, BAND_ON_5G, OPC_BW20, 12, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144),
OP_CLASS_ENT(122, BAND_ON_5G, OPC_BW40PLUS, 6, 100, 108, 116, 124, 132, 140),
OP_CLASS_ENT(123, BAND_ON_5G, OPC_BW40MINUS, 6, 104, 112, 120, 128, 136, 144),
/* 5G band 4, 20M & 40M */
OP_CLASS_ENT(124, BAND_ON_5G, OPC_BW20, 4, 149, 153, 157, 161),
OP_CLASS_ENT(125, BAND_ON_5G, OPC_BW20, 6, 149, 153, 157, 161, 165, 169),
OP_CLASS_ENT(126, BAND_ON_5G, OPC_BW40PLUS, 2, 149, 157),
OP_CLASS_ENT(127, BAND_ON_5G, OPC_BW40MINUS, 2, 153, 161),
/* 5G, 80M & 160M */
OP_CLASS_ENT(128, BAND_ON_5G, OPC_BW80, 24, 36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144, 149, 153, 157, 161),
OP_CLASS_ENT(129, BAND_ON_5G, OPC_BW160, 16, 36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128),
#if 0 /* TODO */
/* 5G, 80+80M */
{130, BAND_ON_5G, OPC_BW80P80, 0x0FFFFFF},
#endif
};
static const int global_op_class_num = sizeof(global_op_class) / sizeof(struct op_class_t);
static const struct op_class_t *get_global_op_class_by_id(u8 gid)
{
int i;
for (i = 0; i < global_op_class_num; i++)
if (global_op_class[i].class_id == gid)
break;
return i < global_op_class_num ? &global_op_class[i] : NULL;
}
bool is_valid_global_op_class_id(u8 gid)
{
return get_global_op_class_by_id(gid) ? 1 : 0;
}
static bool is_valid_global_op_class_ch(const struct op_class_t *opc, u8 ch)
{
int array_idx;
int i;
if (opc < global_op_class
|| (((u8 *)opc) - ((u8 *)global_op_class)) % sizeof(struct op_class_t)
) {
RTW_ERR("Invalid opc pointer:%p (global_op_class:%p, sizeof(struct op_class_t):%zu, %zu)\n"
, opc, global_op_class, sizeof(struct op_class_t), (((u8 *)opc) - ((u8 *)global_op_class)) % sizeof(struct op_class_t));
return 0;
}
array_idx = (((u8 *)opc) - ((u8 *)global_op_class)) / sizeof(struct op_class_t);
for (i = 0; i < OPC_CH_LIST_LEN(global_op_class[array_idx]); i++)
if (OPC_CH_LIST_CH(global_op_class[array_idx], i) == ch)
break;
return i < OPC_CH_LIST_LEN(global_op_class[array_idx]);
}
static enum opc_bw get_global_opc_bw_by_id(u8 gid)
{
int i;
for (i = 0; i < global_op_class_num; i++)
if (global_op_class[i].class_id == gid)
break;
return i < global_op_class_num ? global_op_class[i].bw : OPC_BW_NUM;
}
/* -2: logic error, -1: error, 0: is already BW20 */
s16 get_sub_op_class(u8 gid, u8 ch)
{
const struct op_class_t *opc = get_global_op_class_by_id(gid);
int i;
enum channel_width bw;
if (!opc)
return -1;
if (!is_valid_global_op_class_ch(opc, ch)) {
return -1;
}
if (opc->bw == OPC_BW20)
return 0;
bw = opc_bw_to_ch_width(opc->bw);
for (i = 0; i < global_op_class_num; i++) {
if (bw != opc_bw_to_ch_width(global_op_class[i].bw) + 1)
continue;
if (is_valid_global_op_class_ch(&global_op_class[i], ch))
break;
}
return i < global_op_class_num ? global_op_class[i].class_id : -2;
}
static void dump_op_class_ch_title(void *sel)
{
RTW_PRINT_SEL(sel, "%-5s %-4s %-7s ch_list\n"
, "class", "band", "bw");
}
static void dump_global_op_class_ch_single(void *sel, u8 gid)
{
u8 i;
char buf[100];
char *pos = buf;
for (i = 0; i < OPC_CH_LIST_LEN(global_op_class[gid]); i++)
pos += snprintf(pos, 100 - (pos - buf), " %u", OPC_CH_LIST_CH(global_op_class[gid], i));
RTW_PRINT_SEL(sel, "%5u %4s %7s%s\n"
, global_op_class[gid].class_id
, band_str(global_op_class[gid].band)
, opc_bw_str(global_op_class[gid].bw), buf);
}
#ifdef CONFIG_RTW_DEBUG
static bool dbg_global_op_class_validate(u8 gid)
{
u8 i;
u8 ch, bw, offset, cch;
bool ret = 1;
switch (global_op_class[gid].bw) {
case OPC_BW20:
bw = CHANNEL_WIDTH_20;
offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
break;
case OPC_BW40PLUS:
bw = CHANNEL_WIDTH_40;
offset = HAL_PRIME_CHNL_OFFSET_LOWER;
break;
case OPC_BW40MINUS:
bw = CHANNEL_WIDTH_40;
offset = HAL_PRIME_CHNL_OFFSET_UPPER;
break;
case OPC_BW80:
bw = CHANNEL_WIDTH_80;
offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
break;
case OPC_BW160:
bw = CHANNEL_WIDTH_160;
offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
break;
case OPC_BW80P80: /* TODO */
default:
RTW_ERR("%s class:%u unsupported opc_bw:%u\n"
, __func__, global_op_class[gid].class_id, global_op_class[gid].bw);
ret = 0;
goto exit;
}
for (i = 0; i < OPC_CH_LIST_LEN(global_op_class[gid]); i++) {
u8 *op_chs;
u8 op_ch_num;
u8 k;
ch = OPC_CH_LIST_CH(global_op_class[gid], i);
cch = rtw_get_center_ch(ch ,bw, offset);
if (!cch) {
RTW_ERR("%s can't get cch from class:%u ch:%u\n"
, __func__, global_op_class[gid].class_id, ch);
ret = 0;
continue;
}
if (!rtw_get_op_chs_by_cch_bw(cch, bw, &op_chs, &op_ch_num)) {
RTW_ERR("%s can't get op chs from class:%u cch:%u\n"
, __func__, global_op_class[gid].class_id, cch);
ret = 0;
continue;
}
for (k = 0; k < op_ch_num; k++) {
if (*(op_chs + k) == ch)
break;
}
if (k >= op_ch_num) {
RTW_ERR("%s can't get ch:%u from op_chs class:%u cch:%u\n"
, __func__, ch, global_op_class[i].class_id, cch);
ret = 0;
}
}
exit:
return ret;
}
#endif /* CONFIG_RTW_DEBUG */
void dump_global_op_class(void *sel)
{
u8 i;
dump_op_class_ch_title(sel);
for (i = 0; i < global_op_class_num; i++)
dump_global_op_class_ch_single(sel, i);
}
u8 rtw_get_op_class_by_chbw(u8 ch, u8 bw, u8 offset)
{
BAND_TYPE band = BAND_MAX;
int i;
u8 gid = 0; /* invalid */
if (rtw_is_2g_ch(ch))
band = BAND_ON_2_4G;
else if (rtw_is_5g_ch(ch))
band = BAND_ON_5G;
else
goto exit;
switch (bw) {
case CHANNEL_WIDTH_20:
case CHANNEL_WIDTH_40:
case CHANNEL_WIDTH_80:
case CHANNEL_WIDTH_160:
#if 0 /* TODO */
case CHANNEL_WIDTH_80_80:
#endif
break;
default:
goto exit;
}
for (i = 0; i < global_op_class_num; i++) {
if (band != global_op_class[i].band)
continue;
if (opc_bw_to_ch_width(global_op_class[i].bw) != bw)
continue;
if ((global_op_class[i].bw == OPC_BW40PLUS
&& offset != HAL_PRIME_CHNL_OFFSET_LOWER)
|| (global_op_class[i].bw == OPC_BW40MINUS
&& offset != HAL_PRIME_CHNL_OFFSET_UPPER)
)
continue;
if (is_valid_global_op_class_ch(&global_op_class[i], ch))
goto get;
}
get:
if (i < global_op_class_num) {
#if 0 /* TODO */
if (bw == CHANNEL_WIDTH_80_80) {
/* search another ch */
if (!is_valid_global_op_class_ch(&global_op_class[i], ch2))