diff options
Diffstat (limited to 'freebsd/sys/dev/rtwn/rtl8188e/r88e_chan.c')
| -rw-r--r-- | freebsd/sys/dev/rtwn/rtl8188e/r88e_chan.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/freebsd/sys/dev/rtwn/rtl8188e/r88e_chan.c b/freebsd/sys/dev/rtwn/rtl8188e/r88e_chan.c new file mode 100644 index 00000000..405edb2b --- /dev/null +++ b/freebsd/sys/dev/rtwn/rtl8188e/r88e_chan.c @@ -0,0 +1,169 @@ +#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 <rtems/bsd/sys/param.h> +#include <rtems/bsd/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); +} |