diff options
Diffstat (limited to 'freebsd/sys/dev/rtwn/rtl8192c/r92c_calib.c')
| -rw-r--r-- | freebsd/sys/dev/rtwn/rtl8192c/r92c_calib.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/freebsd/sys/dev/rtwn/rtl8192c/r92c_calib.c b/freebsd/sys/dev/rtwn/rtl8192c/r92c_calib.c new file mode 100644 index 00000000..e7706b8d --- /dev/null +++ b/freebsd/sys/dev/rtwn/rtl8192c/r92c_calib.c @@ -0,0 +1,115 @@ +#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 <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/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)); +} |