freebsd-skq/sys/dev/rtwn/rtl8821a/r21a_calib.c
Andriy Voskoboinyk 7453645f2a rtwn(4), urtwn(4): merge common code, add support for 11ac devices.
All devices:
- add support for rate adaptation via ieee80211_amrr(9);
- use short preamble for transmitted frames when needed;
- multi-bss support:
 * for RTL8821AU: 2 VAPs at the same time;
 * other: 1 any VAP + 1 sta VAP.
RTL8188CE:
- fix IQ calibration bug (reason of significant speed degradation);
- add h/w crypto acceleration support.
USB:
- A-MPDU Tx support;
- short GI support;
Other:
- add support for RTL8812AU / RTL8821AU chipsets
(a/b/g/n only; no ac yet);
- split merged code into subparts:
 * bus glue (usb/*, pci/*, rtl*/usb/*, rtl*/pci/*)
 * common (if_rtwn*)
 * chip-specific (rtl*/*)
- various other bugfixes.

Due to code reorganization, module names / requirements were changed too:
urtwn urtwnfw -> rtwn rtwn_usb rtwnfw
rtwn  rtwnfw  -> rtwn rtwn_pci rtwnfw

Tested with RTL8188CE, RTL8188CUS, RTL8188EU and RTL8821AU.

Tested by:	kevlo, garga,
		Peter Garshtja <peter.garshtja@ambient-md.com>,
		Kevin McAleavey <kevin.mcaleavey@knosproject.com>,
		Ilias-Dimitrios Vrachnis <id@vrachnis.com>,
		<otacilio.neto@bsd.com.br>
Relnotes:	yes
2016-10-17 20:38:24 +00:00

127 lines
3.8 KiB
C

/*-
* 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 "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/if_rtwn_debug.h>
#include <dev/rtwn/rtl8812a/r12a.h>
#include <dev/rtwn/rtl8821a/r21a.h>
#include <dev/rtwn/rtl8821a/r21a_reg.h>
#include <dev/rtwn/rtl8821a/r21a_priv.h>
#ifndef RTWN_WITHOUT_UCODE
int
r21a_iq_calib_fw_supported(struct rtwn_softc *sc)
{
if (sc->fwver == 0x16)
return (1);
return (0);
}
#endif
void
r21a_iq_calib_sw(struct rtwn_softc *sc)
{
#define R21A_MAX_NRXCHAINS 2
uint32_t saved_bb_vals[nitems(r21a_iq_bb_regs)];
uint32_t saved_afe_vals[nitems(r21a_iq_afe_regs)];
uint32_t saved_rf_vals[nitems(r21a_iq_rf_regs) * R21A_MAX_NRXCHAINS];
KASSERT(sc->nrxchains <= R21A_MAX_NRXCHAINS,
("nrxchains > %d (%d)\n", R21A_MAX_NRXCHAINS, sc->nrxchains));
RTWN_DPRINTF(sc, RTWN_DEBUG_CALIB, "%s: SW IQ calibration: TODO\n",
__func__);
/* Save registers. */
r12a_save_bb_afe_vals(sc, saved_bb_vals, r21a_iq_bb_regs,
nitems(r21a_iq_bb_regs));
r12a_save_bb_afe_vals(sc, saved_afe_vals, r21a_iq_afe_regs,
nitems(r21a_iq_afe_regs));
r12a_save_rf_vals(sc, saved_rf_vals, r21a_iq_rf_regs,
nitems(r21a_iq_rf_regs));
#ifdef RTWN_TODO
/* Configure MAC. */
r12a_iq_config_mac(sc);
r21a_iq_tx(sc);
#endif
/* Restore registers. */
r12a_restore_rf_vals(sc, saved_rf_vals, r21a_iq_rf_regs,
nitems(r21a_iq_rf_regs));
r12a_restore_bb_afe_vals(sc, saved_afe_vals, r21a_iq_afe_regs,
nitems(r21a_iq_afe_regs));
/* Select page C1. */
rtwn_bb_setbits(sc, R12A_TXAGC_TABLE_SELECT, 0, 0x80000000);
rtwn_bb_write(sc, R12A_SLEEP_NAV(0), 0);
rtwn_bb_write(sc, R12A_PMPD(0), 0);
rtwn_bb_write(sc, 0xc88, 0);
rtwn_bb_write(sc, 0xc8c, 0x3c000000);
rtwn_bb_write(sc, 0xc90, 0x80);
rtwn_bb_write(sc, 0xc94, 0);
rtwn_bb_write(sc, 0xcc4, 0x20040000);
rtwn_bb_write(sc, 0xcc8, 0x20000000);
rtwn_bb_write(sc, 0xcb8, 0);
r12a_restore_bb_afe_vals(sc, saved_bb_vals, r21a_iq_bb_regs,
nitems(r21a_iq_bb_regs));
#undef R21A_MAX_NRXCHAINS
}