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#include <machine/rtems-bsd-kernel-space.h>
/* $OpenBSD: if_urtwn.c,v 1.16 2011/02/10 17:26:40 jakemsr Exp $ */
/*-
* Copyright (c) 2010 Damien Bergamini <damien.bergamini@free.fr>
* Copyright (c) 2014 Kevin Lo <kevlo@FreeBSD.org>
* Copyright (c) 2015-2016 Andriy Voskoboinyk <avos@FreeBSD.org>
*
* Permission to use, copy, modify, and 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <rtems/bsd/local/opt_wlan.h>
#include <sys/param.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/mbuf.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/queue.h>
#include <sys/taskqueue.h>
#include <sys/bus.h>
#include <sys/endian.h>
#include <sys/linker.h>
#include <net/if.h>
#include <net/ethernet.h>
#include <net/if_media.h>
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_radiotap.h>
#include <dev/rtwn/if_rtwnreg.h>
#include <dev/rtwn/if_rtwnvar.h>
#include <dev/rtwn/if_rtwn_debug.h>
#include <dev/rtwn/if_rtwn_ridx.h>
#include <dev/rtwn/rtl8192c/r92c_var.h>
#include <dev/rtwn/rtl8188e/r88e.h>
#include <dev/rtwn/rtl8188e/r88e_priv.h>
#include <dev/rtwn/rtl8188e/r88e_reg.h>
static int
r88e_get_power_group(struct rtwn_softc *sc, struct ieee80211_channel *c)
{
uint8_t chan;
int group;
chan = rtwn_chan2centieee(c);
if (IEEE80211_IS_CHAN_2GHZ(c)) {
if (chan <= 2) group = 0;
else if (chan <= 5) group = 1;
else if (chan <= 8) group = 2;
else if (chan <= 11) group = 3;
else if (chan <= 13) group = 4;
else if (chan <= 14) group = 5;
else {
KASSERT(0, ("wrong 2GHz channel %d!\n", chan));
return (-1);
}
} else {
KASSERT(0, ("wrong channel band (flags %08X)\n", c->ic_flags));
return (-1);
}
return (group);
}
void
r88e_get_txpower(struct rtwn_softc *sc, int chain,
struct ieee80211_channel *c, uint16_t power[RTWN_RIDX_COUNT])
{
struct r92c_softc *rs = sc->sc_priv;
const struct rtwn_r88e_txpwr *rt = rs->rs_txpwr;
const struct rtwn_r88e_txagc *base = rs->rs_txagc;
uint16_t cckpow, ofdmpow, bw20pow, htpow;
int max_mcs, ridx, group;
/* Determine channel group. */
group = r88e_get_power_group(sc, c);
if (group == -1) { /* shouldn't happen */
device_printf(sc->sc_dev, "%s: incorrect channel\n", __func__);
return;
}
/* XXX net80211 regulatory */
max_mcs = RTWN_RIDX_MCS(sc->ntxchains * 8 - 1);
KASSERT(max_mcs <= RTWN_RIDX_COUNT, ("increase ridx limit\n"));
memset(power, 0, max_mcs * sizeof(power[0]));
if (rs->regulatory == 0) {
for (ridx = RTWN_RIDX_CCK1; ridx <= RTWN_RIDX_CCK11; ridx++)
power[ridx] = base->pwr[0][ridx];
}
for (ridx = RTWN_RIDX_OFDM6; ridx < RTWN_RIDX_COUNT; ridx++) {
if (rs->regulatory == 3)
power[ridx] = base->pwr[0][ridx];
else if (rs->regulatory == 1) {
if (!IEEE80211_IS_CHAN_HT40(c))
power[ridx] = base->pwr[group][ridx];
} else if (rs->regulatory != 2)
power[ridx] = base->pwr[0][ridx];
}
/* Compute per-CCK rate Tx power. */
cckpow = rt->cck_tx_pwr[group];
for (ridx = RTWN_RIDX_CCK1; ridx <= RTWN_RIDX_CCK11; ridx++)
power[ridx] += cckpow;
htpow = rt->ht40_tx_pwr[group];
/* Compute per-OFDM rate Tx power. */
ofdmpow = htpow + rt->ofdm_tx_pwr_diff;
for (ridx = RTWN_RIDX_OFDM6; ridx <= RTWN_RIDX_OFDM54; ridx++)
power[ridx] += ofdmpow;
bw20pow = htpow + rt->bw20_tx_pwr_diff;
for (ridx = RTWN_RIDX_MCS(0); ridx <= max_mcs; ridx++)
power[ridx] += bw20pow;
/* Apply max limit. */
for (ridx = RTWN_RIDX_CCK1; ridx <= max_mcs; ridx++) {
if (power[ridx] > R92C_MAX_TX_PWR)
power[ridx] = R92C_MAX_TX_PWR;
}
}
void
r88e_set_bw20(struct rtwn_softc *sc, uint8_t chan)
{
struct r92c_softc *rs = sc->sc_priv;
rtwn_setbits_1(sc, R92C_BWOPMODE, 0, R92C_BWOPMODE_20MHZ);
rtwn_bb_setbits(sc, R92C_FPGA0_RFMOD, R92C_RFMOD_40MHZ, 0);
rtwn_bb_setbits(sc, R92C_FPGA1_RFMOD, R92C_RFMOD_40MHZ, 0);
/* Select 20MHz bandwidth. */
rtwn_rf_write(sc, 0, R92C_RF_CHNLBW,
(rs->rf_chnlbw[0] & ~0xfff) | chan | R88E_RF_CHNLBW_BW20);
}
void
r88e_set_gain(struct rtwn_softc *sc, uint8_t gain)
{
rtwn_bb_setbits(sc, R92C_OFDM0_AGCCORE1(0),
R92C_OFDM0_AGCCORE1_GAIN_M, gain);
}
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