diff options
Diffstat (limited to 'freebsd/sys/dev/rtwn/rtl8821a/r21a_chan.c')
| -rw-r--r-- | freebsd/sys/dev/rtwn/rtl8821a/r21a_chan.c | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/freebsd/sys/dev/rtwn/rtl8821a/r21a_chan.c b/freebsd/sys/dev/rtwn/rtl8821a/r21a_chan.c new file mode 100644 index 00000000..9277b6af --- /dev/null +++ b/freebsd/sys/dev/rtwn/rtl8821a/r21a_chan.c @@ -0,0 +1,155 @@ +#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 <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_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); +} |