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https://git.rtems.org/rtems-libbsd/
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116 lines
3.0 KiB
C
116 lines
3.0 KiB
C
#include <machine/rtems-bsd-kernel-space.h>
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/* $OpenBSD: if_urtwn.c,v 1.16 2011/02/10 17:26:40 jakemsr Exp $ */
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/*-
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* Copyright (c) 2010 Damien Bergamini <damien.bergamini@free.fr>
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* Copyright (c) 2014 Kevin Lo <kevlo@FreeBSD.org>
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* Copyright (c) 2016 Andriy Voskoboinyk <avos@FreeBSD.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <rtems/bsd/local/opt_wlan.h>
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#include <sys/param.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/mbuf.h>
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#include <sys/kernel.h>
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#include <sys/socket.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <sys/queue.h>
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#include <sys/taskqueue.h>
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#include <sys/bus.h>
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#include <sys/endian.h>
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#include <sys/linker.h>
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#include <net/if.h>
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#include <net/ethernet.h>
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#include <net/if_media.h>
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#include <net80211/ieee80211_var.h>
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#include <net80211/ieee80211_radiotap.h>
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#include <dev/rtwn/if_rtwnreg.h>
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#include <dev/rtwn/if_rtwnvar.h>
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#include <dev/rtwn/rtl8192c/r92c.h>
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#include <dev/rtwn/rtl8192c/r92c_reg.h>
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void
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r92c_iq_calib(struct rtwn_softc *sc)
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{
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/* XXX TODO */
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}
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void
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r92c_lc_calib(struct rtwn_softc *sc)
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{
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uint32_t rf_ac[2];
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uint8_t txmode;
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int i;
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txmode = rtwn_read_1(sc, R92C_OFDM1_LSTF + 3);
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if ((txmode & 0x70) != 0) {
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/* Disable all continuous Tx. */
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rtwn_write_1(sc, R92C_OFDM1_LSTF + 3, txmode & ~0x70);
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/* Set RF mode to standby mode. */
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for (i = 0; i < sc->nrxchains; i++) {
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rf_ac[i] = rtwn_rf_read(sc, i, R92C_RF_AC);
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rtwn_rf_write(sc, i, R92C_RF_AC,
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RW(rf_ac[i], R92C_RF_AC_MODE,
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R92C_RF_AC_MODE_STANDBY));
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}
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} else {
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/* Block all Tx queues. */
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rtwn_write_1(sc, R92C_TXPAUSE, R92C_TX_QUEUE_ALL);
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}
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/* Start calibration. */
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rtwn_rf_setbits(sc, 0, R92C_RF_CHNLBW, 0, R92C_RF_CHNLBW_LCSTART);
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/* Give calibration the time to complete. */
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rtwn_delay(sc, 100000); /* 100ms */
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/* Restore configuration. */
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if ((txmode & 0x70) != 0) {
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/* Restore Tx mode. */
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rtwn_write_1(sc, R92C_OFDM1_LSTF + 3, txmode);
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/* Restore RF mode. */
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for (i = 0; i < sc->nrxchains; i++)
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rtwn_rf_write(sc, i, R92C_RF_AC, rf_ac[i]);
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} else {
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/* Unblock all Tx queues. */
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rtwn_write_1(sc, R92C_TXPAUSE, 0x00);
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}
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}
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void
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r92c_temp_measure(struct rtwn_softc *sc)
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{
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rtwn_rf_write(sc, 0, R92C_RF_T_METER, R92C_RF_T_METER_START);
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}
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uint8_t
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r92c_temp_read(struct rtwn_softc *sc)
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{
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return (MS(rtwn_rf_read(sc, 0, R92C_RF_T_METER),
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R92C_RF_T_METER_VAL));
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}
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