summaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/brcm80211/brcmutil/d11.c
blob: 30e54e2c6c9b6f87ccfe618553c94cf1b2cedee4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
/*
 * Copyright (c) 2013 Broadcom Corporation
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
/*********************channel spec common functions*********************/

#include <linux/module.h>

#include <brcmu_utils.h>
#include <brcmu_wifi.h>
#include <brcmu_d11.h>

static void brcmu_d11n_encchspec(struct brcmu_chan *ch)
{
	ch->chspec = ch->chnum & BRCMU_CHSPEC_CH_MASK;

	switch (ch->bw) {
	case BRCMU_CHAN_BW_20:
		ch->chspec |= BRCMU_CHSPEC_D11N_BW_20 | BRCMU_CHSPEC_D11N_SB_N;
		break;
	case BRCMU_CHAN_BW_40:
	default:
		WARN_ON_ONCE(1);
		break;
	}

	if (ch->chnum <= CH_MAX_2G_CHANNEL)
		ch->chspec |= BRCMU_CHSPEC_D11N_BND_2G;
	else
		ch->chspec |= BRCMU_CHSPEC_D11N_BND_5G;
}

static void brcmu_d11ac_encchspec(struct brcmu_chan *ch)
{
	ch->chspec = ch->chnum & BRCMU_CHSPEC_CH_MASK;

	switch (ch->bw) {
	case BRCMU_CHAN_BW_20:
		ch->chspec |= BRCMU_CHSPEC_D11AC_BW_20;
		break;
	case BRCMU_CHAN_BW_40:
	case BRCMU_CHAN_BW_80:
	case BRCMU_CHAN_BW_80P80:
	case BRCMU_CHAN_BW_160:
	default:
		WARN_ON_ONCE(1);
		break;
	}

	if (ch->chnum <= CH_MAX_2G_CHANNEL)
		ch->chspec |= BRCMU_CHSPEC_D11AC_BND_2G;
	else
		ch->chspec |= BRCMU_CHSPEC_D11AC_BND_5G;
}

static void brcmu_d11n_decchspec(struct brcmu_chan *ch)
{
	u16 val;

	ch->chnum = (u8)(ch->chspec & BRCMU_CHSPEC_CH_MASK);

	switch (ch->chspec & BRCMU_CHSPEC_D11N_BW_MASK) {
	case BRCMU_CHSPEC_D11N_BW_20:
		ch->bw = BRCMU_CHAN_BW_20;
		break;
	case BRCMU_CHSPEC_D11N_BW_40:
		ch->bw = BRCMU_CHAN_BW_40;
		val = ch->chspec & BRCMU_CHSPEC_D11N_SB_MASK;
		if (val == BRCMU_CHSPEC_D11N_SB_L) {
			ch->sb = BRCMU_CHAN_SB_L;
			ch->chnum -= CH_10MHZ_APART;
		} else {
			ch->sb = BRCMU_CHAN_SB_U;
			ch->chnum += CH_10MHZ_APART;
		}
		break;
	default:
		WARN_ON_ONCE(1);
		break;
	}

	switch (ch->chspec & BRCMU_CHSPEC_D11N_BND_MASK) {
	case BRCMU_CHSPEC_D11N_BND_5G:
		ch->band = BRCMU_CHAN_BAND_5G;
		break;
	case BRCMU_CHSPEC_D11N_BND_2G:
		ch->band = BRCMU_CHAN_BAND_2G;
		break;
	default:
		WARN_ON_ONCE(1);
		break;
	}
}

static void brcmu_d11ac_decchspec(struct brcmu_chan *ch)
{
	u16 val;

	ch->chnum = (u8)(ch->chspec & BRCMU_CHSPEC_CH_MASK);

	switch (ch->chspec & BRCMU_CHSPEC_D11AC_BW_MASK) {
	case BRCMU_CHSPEC_D11AC_BW_20:
		ch->bw = BRCMU_CHAN_BW_20;
		break;
	case BRCMU_CHSPEC_D11AC_BW_40:
		ch->bw = BRCMU_CHAN_BW_40;
		val = ch->chspec & BRCMU_CHSPEC_D11AC_SB_MASK;
		if (val == BRCMU_CHSPEC_D11AC_SB_L) {
			ch->sb = BRCMU_CHAN_SB_L;
			ch->chnum -= CH_10MHZ_APART;
		} else if (val == BRCMU_CHSPEC_D11AC_SB_U) {
			ch->sb = BRCMU_CHAN_SB_U;
			ch->chnum += CH_10MHZ_APART;
		} else {
			WARN_ON_ONCE(1);
		}
		break;
	case BRCMU_CHSPEC_D11AC_BW_80:
		ch->bw = BRCMU_CHAN_BW_80;
		break;
	case BRCMU_CHSPEC_D11AC_BW_8080:
	case BRCMU_CHSPEC_D11AC_BW_160:
	default:
		WARN_ON_ONCE(1);
		break;
	}

	switch (ch->chspec & BRCMU_CHSPEC_D11AC_BND_MASK) {
	case BRCMU_CHSPEC_D11AC_BND_5G:
		ch->band = BRCMU_CHAN_BAND_5G;
		break;
	case BRCMU_CHSPEC_D11AC_BND_2G:
		ch->band = BRCMU_CHAN_BAND_2G;
		break;
	default:
		WARN_ON_ONCE(1);
		break;
	}
}

void brcmu_d11_attach(struct brcmu_d11inf *d11inf)
{
	if (d11inf->io_type == BRCMU_D11N_IOTYPE) {
		d11inf->encchspec = brcmu_d11n_encchspec;
		d11inf->decchspec = brcmu_d11n_decchspec;
	} else {
		d11inf->encchspec = brcmu_d11ac_encchspec;
		d11inf->decchspec = brcmu_d11ac_decchspec;
	}
}
EXPORT_SYMBOL(brcmu_d11_attach);
OpenPOWER on IntegriCloud