#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) 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/rtl8192c/r92c.h>
#include <dev/rtwn/rtl8192c/r92c_reg.h>


void
r92c_iq_calib(struct rtwn_softc *sc)
{
	/* XXX TODO */
}

void
r92c_lc_calib(struct rtwn_softc *sc)
{
	uint32_t rf_ac[2];
	uint8_t txmode;
	int i;

	txmode = rtwn_read_1(sc, R92C_OFDM1_LSTF + 3);
	if ((txmode & 0x70) != 0) {
		/* Disable all continuous Tx. */
		rtwn_write_1(sc, R92C_OFDM1_LSTF + 3, txmode & ~0x70);

		/* Set RF mode to standby mode. */
		for (i = 0; i < sc->nrxchains; i++) {
			rf_ac[i] = rtwn_rf_read(sc, i, R92C_RF_AC);
			rtwn_rf_write(sc, i, R92C_RF_AC,
			    RW(rf_ac[i], R92C_RF_AC_MODE,
				R92C_RF_AC_MODE_STANDBY));
		}
	} else {
		/* Block all Tx queues. */
		rtwn_write_1(sc, R92C_TXPAUSE, R92C_TX_QUEUE_ALL);
	}
	/* Start calibration. */
	rtwn_rf_setbits(sc, 0, R92C_RF_CHNLBW, 0, R92C_RF_CHNLBW_LCSTART);

	/* Give calibration the time to complete. */
	rtwn_delay(sc, 100000);	/* 100ms */

	/* Restore configuration. */
	if ((txmode & 0x70) != 0) {
		/* Restore Tx mode. */
		rtwn_write_1(sc, R92C_OFDM1_LSTF + 3, txmode);
		/* Restore RF mode. */
		for (i = 0; i < sc->nrxchains; i++)
			rtwn_rf_write(sc, i, R92C_RF_AC, rf_ac[i]);
	} else {
		/* Unblock all Tx queues. */
		rtwn_write_1(sc, R92C_TXPAUSE, 0x00);
	}
}

void
r92c_temp_measure(struct rtwn_softc *sc)
{
	rtwn_rf_write(sc, 0, R92C_RF_T_METER, R92C_RF_T_METER_START);
}

uint8_t
r92c_temp_read(struct rtwn_softc *sc)
{
	return (MS(rtwn_rf_read(sc, 0, R92C_RF_T_METER),
	    R92C_RF_T_METER_VAL));
}