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/*
* 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);
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