Franky Lin | e3b919d | 2013-04-11 13:28:49 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2013 Broadcom Corporation |
| 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 ANY |
| 11 | * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| 13 | * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| 14 | * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 15 | */ |
| 16 | /*********************channel spec common functions*********************/ |
| 17 | |
| 18 | #include <linux/module.h> |
| 19 | |
| 20 | #include <brcmu_utils.h> |
| 21 | #include <brcmu_wifi.h> |
| 22 | #include <brcmu_d11.h> |
| 23 | |
Arend van Spriel | 4439cbc | 2014-05-12 10:47:34 +0200 | [diff] [blame] | 24 | static u16 d11n_sb(enum brcmu_chan_sb sb) |
| 25 | { |
| 26 | switch (sb) { |
| 27 | case BRCMU_CHAN_SB_NONE: |
| 28 | return BRCMU_CHSPEC_D11N_SB_N; |
| 29 | case BRCMU_CHAN_SB_L: |
| 30 | return BRCMU_CHSPEC_D11N_SB_L; |
| 31 | case BRCMU_CHAN_SB_U: |
| 32 | return BRCMU_CHSPEC_D11N_SB_U; |
| 33 | default: |
| 34 | WARN_ON(1); |
| 35 | } |
| 36 | return 0; |
| 37 | } |
| 38 | |
| 39 | static u16 d11n_bw(enum brcmu_chan_bw bw) |
| 40 | { |
| 41 | switch (bw) { |
| 42 | case BRCMU_CHAN_BW_20: |
| 43 | return BRCMU_CHSPEC_D11N_BW_20; |
| 44 | case BRCMU_CHAN_BW_40: |
| 45 | return BRCMU_CHSPEC_D11N_BW_40; |
| 46 | default: |
| 47 | WARN_ON(1); |
| 48 | } |
| 49 | return 0; |
| 50 | } |
| 51 | |
Franky Lin | e3b919d | 2013-04-11 13:28:49 +0200 | [diff] [blame] | 52 | static void brcmu_d11n_encchspec(struct brcmu_chan *ch) |
| 53 | { |
Arend van Spriel | 4439cbc | 2014-05-12 10:47:34 +0200 | [diff] [blame] | 54 | if (ch->bw == BRCMU_CHAN_BW_20) |
| 55 | ch->sb = BRCMU_CHAN_SB_NONE; |
Franky Lin | e3b919d | 2013-04-11 13:28:49 +0200 | [diff] [blame] | 56 | |
Arend van Spriel | 6833965 | 2014-05-27 12:56:25 +0200 | [diff] [blame] | 57 | ch->chspec = 0; |
Arend van Spriel | 4439cbc | 2014-05-12 10:47:34 +0200 | [diff] [blame] | 58 | brcmu_maskset16(&ch->chspec, BRCMU_CHSPEC_CH_MASK, |
| 59 | BRCMU_CHSPEC_CH_SHIFT, ch->chnum); |
| 60 | brcmu_maskset16(&ch->chspec, BRCMU_CHSPEC_D11N_SB_MASK, |
| 61 | 0, d11n_sb(ch->sb)); |
| 62 | brcmu_maskset16(&ch->chspec, BRCMU_CHSPEC_D11N_BW_MASK, |
| 63 | 0, d11n_bw(ch->bw)); |
Franky Lin | e3b919d | 2013-04-11 13:28:49 +0200 | [diff] [blame] | 64 | |
| 65 | if (ch->chnum <= CH_MAX_2G_CHANNEL) |
| 66 | ch->chspec |= BRCMU_CHSPEC_D11N_BND_2G; |
| 67 | else |
| 68 | ch->chspec |= BRCMU_CHSPEC_D11N_BND_5G; |
| 69 | } |
| 70 | |
Arend van Spriel | 4439cbc | 2014-05-12 10:47:34 +0200 | [diff] [blame] | 71 | static u16 d11ac_bw(enum brcmu_chan_bw bw) |
| 72 | { |
| 73 | switch (bw) { |
| 74 | case BRCMU_CHAN_BW_20: |
| 75 | return BRCMU_CHSPEC_D11AC_BW_20; |
| 76 | case BRCMU_CHAN_BW_40: |
| 77 | return BRCMU_CHSPEC_D11AC_BW_40; |
| 78 | case BRCMU_CHAN_BW_80: |
| 79 | return BRCMU_CHSPEC_D11AC_BW_80; |
| 80 | default: |
| 81 | WARN_ON(1); |
| 82 | } |
| 83 | return 0; |
| 84 | } |
| 85 | |
Franky Lin | e3b919d | 2013-04-11 13:28:49 +0200 | [diff] [blame] | 86 | static void brcmu_d11ac_encchspec(struct brcmu_chan *ch) |
| 87 | { |
Arend van Spriel | 4439cbc | 2014-05-12 10:47:34 +0200 | [diff] [blame] | 88 | if (ch->bw == BRCMU_CHAN_BW_20 || ch->sb == BRCMU_CHAN_SB_NONE) |
| 89 | ch->sb = BRCMU_CHAN_SB_L; |
Franky Lin | e3b919d | 2013-04-11 13:28:49 +0200 | [diff] [blame] | 90 | |
Arend van Spriel | 4439cbc | 2014-05-12 10:47:34 +0200 | [diff] [blame] | 91 | brcmu_maskset16(&ch->chspec, BRCMU_CHSPEC_CH_MASK, |
| 92 | BRCMU_CHSPEC_CH_SHIFT, ch->chnum); |
| 93 | brcmu_maskset16(&ch->chspec, BRCMU_CHSPEC_D11AC_SB_MASK, |
| 94 | BRCMU_CHSPEC_D11AC_SB_SHIFT, ch->sb); |
| 95 | brcmu_maskset16(&ch->chspec, BRCMU_CHSPEC_D11AC_BW_MASK, |
| 96 | 0, d11ac_bw(ch->bw)); |
Franky Lin | e3b919d | 2013-04-11 13:28:49 +0200 | [diff] [blame] | 97 | |
Arend van Spriel | 4439cbc | 2014-05-12 10:47:34 +0200 | [diff] [blame] | 98 | ch->chspec &= ~BRCMU_CHSPEC_D11AC_BND_MASK; |
Franky Lin | e3b919d | 2013-04-11 13:28:49 +0200 | [diff] [blame] | 99 | if (ch->chnum <= CH_MAX_2G_CHANNEL) |
| 100 | ch->chspec |= BRCMU_CHSPEC_D11AC_BND_2G; |
| 101 | else |
| 102 | ch->chspec |= BRCMU_CHSPEC_D11AC_BND_5G; |
| 103 | } |
| 104 | |
| 105 | static void brcmu_d11n_decchspec(struct brcmu_chan *ch) |
| 106 | { |
| 107 | u16 val; |
| 108 | |
| 109 | ch->chnum = (u8)(ch->chspec & BRCMU_CHSPEC_CH_MASK); |
Rafał Miłecki | 4712d88 | 2016-05-20 13:38:57 +0200 | [diff] [blame] | 110 | ch->control_ch_num = ch->chnum; |
Franky Lin | e3b919d | 2013-04-11 13:28:49 +0200 | [diff] [blame] | 111 | |
| 112 | switch (ch->chspec & BRCMU_CHSPEC_D11N_BW_MASK) { |
| 113 | case BRCMU_CHSPEC_D11N_BW_20: |
| 114 | ch->bw = BRCMU_CHAN_BW_20; |
Arend van Spriel | 4439cbc | 2014-05-12 10:47:34 +0200 | [diff] [blame] | 115 | ch->sb = BRCMU_CHAN_SB_NONE; |
Franky Lin | e3b919d | 2013-04-11 13:28:49 +0200 | [diff] [blame] | 116 | break; |
| 117 | case BRCMU_CHSPEC_D11N_BW_40: |
| 118 | ch->bw = BRCMU_CHAN_BW_40; |
| 119 | val = ch->chspec & BRCMU_CHSPEC_D11N_SB_MASK; |
| 120 | if (val == BRCMU_CHSPEC_D11N_SB_L) { |
| 121 | ch->sb = BRCMU_CHAN_SB_L; |
Rafał Miłecki | 4712d88 | 2016-05-20 13:38:57 +0200 | [diff] [blame] | 122 | ch->control_ch_num -= CH_10MHZ_APART; |
Franky Lin | e3b919d | 2013-04-11 13:28:49 +0200 | [diff] [blame] | 123 | } else { |
| 124 | ch->sb = BRCMU_CHAN_SB_U; |
Rafał Miłecki | 4712d88 | 2016-05-20 13:38:57 +0200 | [diff] [blame] | 125 | ch->control_ch_num += CH_10MHZ_APART; |
Franky Lin | e3b919d | 2013-04-11 13:28:49 +0200 | [diff] [blame] | 126 | } |
| 127 | break; |
| 128 | default: |
| 129 | WARN_ON_ONCE(1); |
| 130 | break; |
| 131 | } |
| 132 | |
| 133 | switch (ch->chspec & BRCMU_CHSPEC_D11N_BND_MASK) { |
| 134 | case BRCMU_CHSPEC_D11N_BND_5G: |
| 135 | ch->band = BRCMU_CHAN_BAND_5G; |
| 136 | break; |
| 137 | case BRCMU_CHSPEC_D11N_BND_2G: |
| 138 | ch->band = BRCMU_CHAN_BAND_2G; |
| 139 | break; |
| 140 | default: |
| 141 | WARN_ON_ONCE(1); |
| 142 | break; |
| 143 | } |
| 144 | } |
| 145 | |
| 146 | static void brcmu_d11ac_decchspec(struct brcmu_chan *ch) |
| 147 | { |
| 148 | u16 val; |
| 149 | |
| 150 | ch->chnum = (u8)(ch->chspec & BRCMU_CHSPEC_CH_MASK); |
Rafał Miłecki | 4712d88 | 2016-05-20 13:38:57 +0200 | [diff] [blame] | 151 | ch->control_ch_num = ch->chnum; |
Franky Lin | e3b919d | 2013-04-11 13:28:49 +0200 | [diff] [blame] | 152 | |
| 153 | switch (ch->chspec & BRCMU_CHSPEC_D11AC_BW_MASK) { |
| 154 | case BRCMU_CHSPEC_D11AC_BW_20: |
| 155 | ch->bw = BRCMU_CHAN_BW_20; |
Arend van Spriel | 4439cbc | 2014-05-12 10:47:34 +0200 | [diff] [blame] | 156 | ch->sb = BRCMU_CHAN_SB_NONE; |
Franky Lin | e3b919d | 2013-04-11 13:28:49 +0200 | [diff] [blame] | 157 | break; |
| 158 | case BRCMU_CHSPEC_D11AC_BW_40: |
| 159 | ch->bw = BRCMU_CHAN_BW_40; |
| 160 | val = ch->chspec & BRCMU_CHSPEC_D11AC_SB_MASK; |
| 161 | if (val == BRCMU_CHSPEC_D11AC_SB_L) { |
| 162 | ch->sb = BRCMU_CHAN_SB_L; |
Rafał Miłecki | 4712d88 | 2016-05-20 13:38:57 +0200 | [diff] [blame] | 163 | ch->control_ch_num -= CH_10MHZ_APART; |
Franky Lin | e3b919d | 2013-04-11 13:28:49 +0200 | [diff] [blame] | 164 | } else if (val == BRCMU_CHSPEC_D11AC_SB_U) { |
| 165 | ch->sb = BRCMU_CHAN_SB_U; |
Rafał Miłecki | 4712d88 | 2016-05-20 13:38:57 +0200 | [diff] [blame] | 166 | ch->control_ch_num += CH_10MHZ_APART; |
Franky Lin | e3b919d | 2013-04-11 13:28:49 +0200 | [diff] [blame] | 167 | } else { |
| 168 | WARN_ON_ONCE(1); |
| 169 | } |
| 170 | break; |
| 171 | case BRCMU_CHSPEC_D11AC_BW_80: |
| 172 | ch->bw = BRCMU_CHAN_BW_80; |
Arend van Spriel | 4439cbc | 2014-05-12 10:47:34 +0200 | [diff] [blame] | 173 | ch->sb = brcmu_maskget16(ch->chspec, BRCMU_CHSPEC_D11AC_SB_MASK, |
| 174 | BRCMU_CHSPEC_D11AC_SB_SHIFT); |
| 175 | switch (ch->sb) { |
| 176 | case BRCMU_CHAN_SB_LL: |
Rafał Miłecki | 4712d88 | 2016-05-20 13:38:57 +0200 | [diff] [blame] | 177 | ch->control_ch_num -= CH_30MHZ_APART; |
Arend van Spriel | 4439cbc | 2014-05-12 10:47:34 +0200 | [diff] [blame] | 178 | break; |
| 179 | case BRCMU_CHAN_SB_LU: |
Rafał Miłecki | 4712d88 | 2016-05-20 13:38:57 +0200 | [diff] [blame] | 180 | ch->control_ch_num -= CH_10MHZ_APART; |
Arend van Spriel | 4439cbc | 2014-05-12 10:47:34 +0200 | [diff] [blame] | 181 | break; |
| 182 | case BRCMU_CHAN_SB_UL: |
Rafał Miłecki | 4712d88 | 2016-05-20 13:38:57 +0200 | [diff] [blame] | 183 | ch->control_ch_num += CH_10MHZ_APART; |
Arend van Spriel | 4439cbc | 2014-05-12 10:47:34 +0200 | [diff] [blame] | 184 | break; |
| 185 | case BRCMU_CHAN_SB_UU: |
Rafał Miłecki | 4712d88 | 2016-05-20 13:38:57 +0200 | [diff] [blame] | 186 | ch->control_ch_num += CH_30MHZ_APART; |
Arend van Spriel | 4439cbc | 2014-05-12 10:47:34 +0200 | [diff] [blame] | 187 | break; |
| 188 | default: |
| 189 | WARN_ON_ONCE(1); |
| 190 | break; |
| 191 | } |
Franky Lin | e3b919d | 2013-04-11 13:28:49 +0200 | [diff] [blame] | 192 | break; |
| 193 | case BRCMU_CHSPEC_D11AC_BW_8080: |
| 194 | case BRCMU_CHSPEC_D11AC_BW_160: |
| 195 | default: |
| 196 | WARN_ON_ONCE(1); |
| 197 | break; |
| 198 | } |
| 199 | |
| 200 | switch (ch->chspec & BRCMU_CHSPEC_D11AC_BND_MASK) { |
| 201 | case BRCMU_CHSPEC_D11AC_BND_5G: |
| 202 | ch->band = BRCMU_CHAN_BAND_5G; |
| 203 | break; |
| 204 | case BRCMU_CHSPEC_D11AC_BND_2G: |
| 205 | ch->band = BRCMU_CHAN_BAND_2G; |
| 206 | break; |
| 207 | default: |
| 208 | WARN_ON_ONCE(1); |
| 209 | break; |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | void brcmu_d11_attach(struct brcmu_d11inf *d11inf) |
| 214 | { |
| 215 | if (d11inf->io_type == BRCMU_D11N_IOTYPE) { |
| 216 | d11inf->encchspec = brcmu_d11n_encchspec; |
| 217 | d11inf->decchspec = brcmu_d11n_decchspec; |
| 218 | } else { |
| 219 | d11inf->encchspec = brcmu_d11ac_encchspec; |
| 220 | d11inf->decchspec = brcmu_d11ac_decchspec; |
| 221 | } |
| 222 | } |
| 223 | EXPORT_SYMBOL(brcmu_d11_attach); |