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#include <machine/rtems-bsd-kernel-space.h>
/*-
* Copyright (c) 2016 Andriy Voskoboinyk <avos@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#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_rtwnvar.h>
#include <dev/rtwn/if_rtwn_ridx.h>
#include <dev/rtwn/if_rtwn_rx.h>
#include <dev/rtwn/rtl8812a/r12a_var.h>
#include <dev/rtwn/rtl8821a/r21a.h>
#include <dev/rtwn/rtl8821a/r21a_reg.h>
static void
r21a_bypass_ext_lna_2ghz(struct rtwn_softc *sc)
{
rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x00100000, 0);
rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x00400000, 0);
rtwn_bb_setbits(sc, R12A_RFE_PINMUX(0), 0, 0x07);
rtwn_bb_setbits(sc, R12A_RFE_PINMUX(0), 0, 0x0700);
}
void
r21a_set_band_2ghz(struct rtwn_softc *sc, uint32_t basicrates)
{
struct r12a_softc *rs = sc->sc_priv;
/* Enable CCK / OFDM. */
rtwn_bb_setbits(sc, R12A_OFDMCCK_EN,
0, R12A_OFDMCCK_EN_CCK | R12A_OFDMCCK_EN_OFDM);
/* Turn off RF PA and LNA. */
rtwn_bb_setbits(sc, R12A_RFE_PINMUX(0),
R12A_RFE_PINMUX_LNA_MASK, 0x7000);
rtwn_bb_setbits(sc, R12A_RFE_PINMUX(0),
R12A_RFE_PINMUX_PA_A_MASK, 0x70);
if (rs->ext_lna_2g) {
/* Turn on 2.4 GHz external LNA. */
rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0, 0x00100000);
rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x00400000, 0);
rtwn_bb_setbits(sc, R12A_RFE_PINMUX(0), 0x05, 0x02);
rtwn_bb_setbits(sc, R12A_RFE_PINMUX(0), 0x0500, 0x0200);
} else {
/* Bypass 2.4 GHz external LNA. */
r21a_bypass_ext_lna_2ghz(sc);
}
/* Select AGC table. */
rtwn_bb_setbits(sc, R12A_TX_SCALE(0), 0x0f00, 0);
rtwn_bb_setbits(sc, R12A_TX_PATH, 0xf0, 0x10);
rtwn_bb_setbits(sc, R12A_CCK_RX_PATH, 0x0f000000, 0x01000000);
/* Write basic rates. */
rtwn_set_basicrates(sc, basicrates);
rtwn_write_1(sc, R12A_CCK_CHECK, 0);
}
void
r21a_set_band_5ghz(struct rtwn_softc *sc, uint32_t basicrates)
{
struct r12a_softc *rs = sc->sc_priv;
int ntries;
rtwn_bb_setbits(sc, R12A_RFE_PINMUX(0),
R12A_RFE_PINMUX_LNA_MASK, 0x5000);
rtwn_bb_setbits(sc, R12A_RFE_PINMUX(0),
R12A_RFE_PINMUX_PA_A_MASK, 0x40);
if (rs->ext_lna_2g) {
/* Bypass 2.4 GHz external LNA. */
r21a_bypass_ext_lna_2ghz(sc);
}
rtwn_write_1(sc, R12A_CCK_CHECK, R12A_CCK_CHECK_5GHZ);
for (ntries = 0; ntries < 100; ntries++) {
if ((rtwn_read_2(sc, R12A_TXPKT_EMPTY) & 0x30) == 0x30)
break;
rtwn_delay(sc, 25);
}
if (ntries == 100) {
device_printf(sc->sc_dev,
"%s: TXPKT_EMPTY check failed (%04X)\n",
__func__, rtwn_read_2(sc, R12A_TXPKT_EMPTY));
}
/* Enable OFDM. */
rtwn_bb_setbits(sc, R12A_OFDMCCK_EN, R12A_OFDMCCK_EN_CCK,
R12A_OFDMCCK_EN_OFDM);
/* Select AGC table. */
rtwn_bb_setbits(sc, R12A_TX_SCALE(0), 0x0f00, 0x0100);
rtwn_bb_setbits(sc, R12A_TX_PATH, 0xf0, 0);
rtwn_bb_setbits(sc, R12A_CCK_RX_PATH, 0, 0x0f000000);
/* Write basic rates. */
rtwn_set_basicrates(sc, basicrates);
}
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