1984 lines
46 KiB
C
1984 lines
46 KiB
C
/*
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* Copyright (c) 2007 The DragonFly Project. All rights reserved.
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*
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* This code is derived from software contributed to The DragonFly Project
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* by Sepherosa Ziehau <sepherosa@gmail.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name of The DragonFly Project nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific, prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $DragonFly: src/sys/dev/netif/bwi/bwimac.c,v 1.13 2008/02/15 11:15:38 sephe Exp $
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_inet.h"
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#include "opt_bwi.h"
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#include "opt_wlan.h"
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#include <sys/param.h>
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#include <sys/endian.h>
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#include <sys/kernel.h>
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#include <sys/bus.h>
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#include <sys/malloc.h>
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#include <sys/proc.h>
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#include <sys/rman.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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#include <sys/sysctl.h>
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#include <sys/systm.h>
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#include <sys/linker.h>
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#include <sys/firmware.h>
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#include <net/if.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <net/if_types.h>
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#include <net/if_arp.h>
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#include <net/ethernet.h>
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#include <net/if_llc.h>
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#include <net80211/ieee80211_var.h>
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#include <net80211/ieee80211_radiotap.h>
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#include <net80211/ieee80211_amrr.h>
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#include <net80211/ieee80211_phy.h>
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#include <machine/bus.h>
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#include <dev/bwi/bitops.h>
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#include <dev/bwi/if_bwireg.h>
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#include <dev/bwi/if_bwivar.h>
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#include <dev/bwi/bwimac.h>
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#include <dev/bwi/bwirf.h>
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#include <dev/bwi/bwiphy.h>
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struct bwi_retry_lim {
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uint16_t shretry;
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uint16_t shretry_fb;
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uint16_t lgretry;
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uint16_t lgretry_fb;
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};
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static int bwi_mac_test(struct bwi_mac *);
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static int bwi_mac_get_property(struct bwi_mac *);
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static void bwi_mac_set_retry_lim(struct bwi_mac *,
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const struct bwi_retry_lim *);
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static void bwi_mac_set_ackrates(struct bwi_mac *,
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const struct ieee80211_rate_table *rt,
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const struct ieee80211_rateset *);
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static int bwi_mac_gpio_init(struct bwi_mac *);
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static int bwi_mac_gpio_fini(struct bwi_mac *);
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static void bwi_mac_opmode_init(struct bwi_mac *);
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static void bwi_mac_hostflags_init(struct bwi_mac *);
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static void bwi_mac_bss_param_init(struct bwi_mac *);
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static int bwi_mac_fw_alloc(struct bwi_mac *);
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static void bwi_mac_fw_free(struct bwi_mac *);
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static int bwi_mac_fw_load(struct bwi_mac *);
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static int bwi_mac_fw_init(struct bwi_mac *);
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static int bwi_mac_fw_load_iv(struct bwi_mac *, const struct firmware *);
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static void bwi_mac_setup_tpctl(struct bwi_mac *);
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static void bwi_mac_adjust_tpctl(struct bwi_mac *, int, int);
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static void bwi_mac_lock(struct bwi_mac *);
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static void bwi_mac_unlock(struct bwi_mac *);
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static const uint8_t bwi_sup_macrev[] = { 2, 4, 5, 6, 7, 9, 10 };
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void
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bwi_tmplt_write_4(struct bwi_mac *mac, uint32_t ofs, uint32_t val)
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{
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struct bwi_softc *sc = mac->mac_sc;
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if (mac->mac_flags & BWI_MAC_F_BSWAP)
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val = bswap32(val);
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CSR_WRITE_4(sc, BWI_MAC_TMPLT_CTRL, ofs);
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CSR_WRITE_4(sc, BWI_MAC_TMPLT_DATA, val);
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}
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void
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bwi_hostflags_write(struct bwi_mac *mac, uint64_t flags)
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{
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uint64_t val;
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val = flags & 0xffff;
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MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_HFLAGS_LO, val);
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val = (flags >> 16) & 0xffff;
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MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_HFLAGS_MI, val);
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/* HI has unclear meaning, so leave it as it is */
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}
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uint64_t
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bwi_hostflags_read(struct bwi_mac *mac)
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{
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uint64_t flags, val;
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/* HI has unclear meaning, so don't touch it */
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flags = 0;
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val = MOBJ_READ_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_HFLAGS_MI);
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flags |= val << 16;
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val = MOBJ_READ_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_HFLAGS_LO);
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flags |= val;
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return flags;
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}
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uint16_t
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bwi_memobj_read_2(struct bwi_mac *mac, uint16_t obj_id, uint16_t ofs0)
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{
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struct bwi_softc *sc = mac->mac_sc;
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uint32_t data_reg;
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int ofs;
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data_reg = BWI_MOBJ_DATA;
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ofs = ofs0 / 4;
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if (ofs0 % 4 != 0)
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data_reg = BWI_MOBJ_DATA_UNALIGN;
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CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(obj_id, ofs));
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return CSR_READ_2(sc, data_reg);
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}
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uint32_t
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bwi_memobj_read_4(struct bwi_mac *mac, uint16_t obj_id, uint16_t ofs0)
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{
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struct bwi_softc *sc = mac->mac_sc;
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int ofs;
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ofs = ofs0 / 4;
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if (ofs0 % 4 != 0) {
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uint32_t ret;
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CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(obj_id, ofs));
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ret = CSR_READ_2(sc, BWI_MOBJ_DATA_UNALIGN);
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ret <<= 16;
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CSR_WRITE_4(sc, BWI_MOBJ_CTRL,
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BWI_MOBJ_CTRL_VAL(obj_id, ofs + 1));
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ret |= CSR_READ_2(sc, BWI_MOBJ_DATA);
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return ret;
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} else {
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CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(obj_id, ofs));
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return CSR_READ_4(sc, BWI_MOBJ_DATA);
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}
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}
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void
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bwi_memobj_write_2(struct bwi_mac *mac, uint16_t obj_id, uint16_t ofs0,
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uint16_t v)
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{
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struct bwi_softc *sc = mac->mac_sc;
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uint32_t data_reg;
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int ofs;
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data_reg = BWI_MOBJ_DATA;
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ofs = ofs0 / 4;
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if (ofs0 % 4 != 0)
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data_reg = BWI_MOBJ_DATA_UNALIGN;
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CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(obj_id, ofs));
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CSR_WRITE_2(sc, data_reg, v);
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}
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void
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bwi_memobj_write_4(struct bwi_mac *mac, uint16_t obj_id, uint16_t ofs0,
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uint32_t v)
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{
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struct bwi_softc *sc = mac->mac_sc;
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int ofs;
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ofs = ofs0 / 4;
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if (ofs0 % 4 != 0) {
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CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(obj_id, ofs));
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CSR_WRITE_2(sc, BWI_MOBJ_DATA_UNALIGN, v >> 16);
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CSR_WRITE_4(sc, BWI_MOBJ_CTRL,
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BWI_MOBJ_CTRL_VAL(obj_id, ofs + 1));
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CSR_WRITE_2(sc, BWI_MOBJ_DATA, v & 0xffff);
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} else {
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CSR_WRITE_4(sc, BWI_MOBJ_CTRL, BWI_MOBJ_CTRL_VAL(obj_id, ofs));
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CSR_WRITE_4(sc, BWI_MOBJ_DATA, v);
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}
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}
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int
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bwi_mac_lateattach(struct bwi_mac *mac)
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{
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int error;
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if (mac->mac_rev >= 5)
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CSR_READ_4(mac->mac_sc, BWI_STATE_HI); /* dummy read */
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bwi_mac_reset(mac, 1);
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error = bwi_phy_attach(mac);
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if (error)
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return error;
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error = bwi_rf_attach(mac);
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if (error)
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return error;
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/* Link 11B/G PHY, unlink 11A PHY */
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if (mac->mac_phy.phy_mode == IEEE80211_MODE_11A)
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bwi_mac_reset(mac, 0);
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else
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bwi_mac_reset(mac, 1);
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error = bwi_mac_test(mac);
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if (error)
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return error;
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error = bwi_mac_get_property(mac);
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if (error)
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return error;
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error = bwi_rf_map_txpower(mac);
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if (error)
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return error;
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bwi_rf_off(mac);
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CSR_WRITE_2(mac->mac_sc, BWI_BBP_ATTEN, BWI_BBP_ATTEN_MAGIC);
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bwi_regwin_disable(mac->mac_sc, &mac->mac_regwin, 0);
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return 0;
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}
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int
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bwi_mac_init(struct bwi_mac *mac)
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{
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struct bwi_softc *sc = mac->mac_sc;
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int error, i;
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/* Clear MAC/PHY/RF states */
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bwi_mac_setup_tpctl(mac);
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bwi_rf_clear_state(&mac->mac_rf);
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bwi_phy_clear_state(&mac->mac_phy);
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/* Enable MAC and linked it to PHY */
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if (!bwi_regwin_is_enabled(sc, &mac->mac_regwin))
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bwi_mac_reset(mac, 1);
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/* Initialize backplane */
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error = bwi_bus_init(sc, mac);
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if (error)
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return error;
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/* do timeout fixup */
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if (sc->sc_bus_regwin.rw_rev <= 5 &&
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sc->sc_bus_regwin.rw_type != BWI_REGWIN_T_BUSPCIE) {
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CSR_SETBITS_4(sc, BWI_CONF_LO,
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__SHIFTIN(BWI_CONF_LO_SERVTO, BWI_CONF_LO_SERVTO_MASK) |
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__SHIFTIN(BWI_CONF_LO_REQTO, BWI_CONF_LO_REQTO_MASK));
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}
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/* Calibrate PHY */
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error = bwi_phy_calibrate(mac);
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if (error) {
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device_printf(sc->sc_dev, "PHY calibrate failed\n");
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return error;
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}
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/* Prepare to initialize firmware */
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CSR_WRITE_4(sc, BWI_MAC_STATUS,
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BWI_MAC_STATUS_UCODE_JUMP0 |
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BWI_MAC_STATUS_IHREN);
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/*
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* Load and initialize firmwares
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*/
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error = bwi_mac_fw_alloc(mac);
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if (error)
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return error;
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error = bwi_mac_fw_load(mac);
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if (error)
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return error;
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error = bwi_mac_gpio_init(mac);
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if (error)
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return error;
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error = bwi_mac_fw_init(mac);
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if (error)
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return error;
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/*
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* Turn on RF
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*/
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bwi_rf_on(mac);
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/* TODO: LED, hardware rf enabled is only related to LED setting */
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/*
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* Initialize PHY
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*/
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CSR_WRITE_2(sc, BWI_BBP_ATTEN, 0);
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bwi_phy_init(mac);
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/* TODO: interference mitigation */
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/*
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* Setup antenna mode
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*/
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bwi_rf_set_ant_mode(mac, mac->mac_rf.rf_ant_mode);
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/*
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* Initialize operation mode (RX configuration)
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*/
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bwi_mac_opmode_init(mac);
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/* set up Beacon interval */
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if (mac->mac_rev < 3) {
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CSR_WRITE_2(sc, 0x60e, 0);
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CSR_WRITE_2(sc, 0x610, 0x8000);
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CSR_WRITE_2(sc, 0x604, 0);
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CSR_WRITE_2(sc, 0x606, 0x200);
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} else {
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CSR_WRITE_4(sc, 0x188, 0x80000000);
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CSR_WRITE_4(sc, 0x18c, 0x2000000);
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}
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/*
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* Initialize TX/RX interrupts' mask
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*/
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CSR_WRITE_4(sc, BWI_MAC_INTR_STATUS, BWI_INTR_TIMER1);
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for (i = 0; i < BWI_TXRX_NRING; ++i) {
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uint32_t intrs;
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if (BWI_TXRX_IS_RX(i))
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intrs = BWI_TXRX_RX_INTRS;
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else
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intrs = BWI_TXRX_TX_INTRS;
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CSR_WRITE_4(sc, BWI_TXRX_INTR_MASK(i), intrs);
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}
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/* allow the MAC to control the PHY clock (dynamic on/off) */
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CSR_SETBITS_4(sc, BWI_STATE_LO, 0x100000);
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/* Setup MAC power up delay */
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CSR_WRITE_2(sc, BWI_MAC_POWERUP_DELAY, sc->sc_pwron_delay);
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/* Set MAC regwin revision */
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MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_MACREV, mac->mac_rev);
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/*
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* Initialize host flags
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*/
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bwi_mac_hostflags_init(mac);
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/*
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* Initialize BSS parameters
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*/
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bwi_mac_bss_param_init(mac);
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/*
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* Initialize TX rings
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*/
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for (i = 0; i < BWI_TX_NRING; ++i) {
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error = sc->sc_init_tx_ring(sc, i);
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if (error) {
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device_printf(sc->sc_dev,
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"can't initialize %dth TX ring\n", i);
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return error;
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}
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}
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/*
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* Initialize RX ring
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*/
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error = sc->sc_init_rx_ring(sc);
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if (error) {
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device_printf(sc->sc_dev, "can't initialize RX ring\n");
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return error;
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}
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/*
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* Initialize TX stats if the current MAC uses that
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*/
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if (mac->mac_flags & BWI_MAC_F_HAS_TXSTATS) {
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error = sc->sc_init_txstats(sc);
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if (error) {
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device_printf(sc->sc_dev,
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"can't initialize TX stats ring\n");
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return error;
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}
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}
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/* update PRETBTT */
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CSR_WRITE_2(sc, 0x612, 0x50); /* Force Pre-TBTT to 80? */
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MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, 0x416, 0x50);
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MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, 0x414, 0x1f4);
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mac->mac_flags |= BWI_MAC_F_INITED;
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return 0;
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}
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void
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bwi_mac_reset(struct bwi_mac *mac, int link_phy)
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{
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struct bwi_softc *sc = mac->mac_sc;
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uint32_t flags, state_lo, status;
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flags = BWI_STATE_LO_FLAG_PHYRST | BWI_STATE_LO_FLAG_PHYCLKEN;
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if (link_phy)
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flags |= BWI_STATE_LO_FLAG_PHYLNK;
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bwi_regwin_enable(sc, &mac->mac_regwin, flags);
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DELAY(2000);
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state_lo = CSR_READ_4(sc, BWI_STATE_LO);
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state_lo |= BWI_STATE_LO_GATED_CLOCK;
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state_lo &= ~__SHIFTIN(BWI_STATE_LO_FLAG_PHYRST,
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BWI_STATE_LO_FLAGS_MASK);
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CSR_WRITE_4(sc, BWI_STATE_LO, state_lo);
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/* Flush pending bus write */
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CSR_READ_4(sc, BWI_STATE_LO);
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DELAY(1000);
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state_lo &= ~BWI_STATE_LO_GATED_CLOCK;
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CSR_WRITE_4(sc, BWI_STATE_LO, state_lo);
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/* Flush pending bus write */
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CSR_READ_4(sc, BWI_STATE_LO);
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DELAY(1000);
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CSR_WRITE_2(sc, BWI_BBP_ATTEN, 0);
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status = CSR_READ_4(sc, BWI_MAC_STATUS);
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status |= BWI_MAC_STATUS_IHREN;
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if (link_phy)
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status |= BWI_MAC_STATUS_PHYLNK;
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else
|
|
status &= ~BWI_MAC_STATUS_PHYLNK;
|
|
CSR_WRITE_4(sc, BWI_MAC_STATUS, status);
|
|
|
|
if (link_phy) {
|
|
DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_ATTACH | BWI_DBG_INIT,
|
|
"%s\n", "PHY is linked");
|
|
mac->mac_phy.phy_flags |= BWI_PHY_F_LINKED;
|
|
} else {
|
|
DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_ATTACH | BWI_DBG_INIT,
|
|
"%s\n", "PHY is unlinked");
|
|
mac->mac_phy.phy_flags &= ~BWI_PHY_F_LINKED;
|
|
}
|
|
}
|
|
|
|
void
|
|
bwi_mac_set_tpctl_11bg(struct bwi_mac *mac, const struct bwi_tpctl *new_tpctl)
|
|
{
|
|
struct bwi_rf *rf = &mac->mac_rf;
|
|
struct bwi_tpctl *tpctl = &mac->mac_tpctl;
|
|
|
|
if (new_tpctl != NULL) {
|
|
KASSERT(new_tpctl->bbp_atten <= BWI_BBP_ATTEN_MAX,
|
|
("bbp_atten %d", new_tpctl->bbp_atten));
|
|
KASSERT(new_tpctl->rf_atten <=
|
|
(rf->rf_rev < 6 ? BWI_RF_ATTEN_MAX0
|
|
: BWI_RF_ATTEN_MAX1),
|
|
("rf_atten %d", new_tpctl->rf_atten));
|
|
KASSERT(new_tpctl->tp_ctrl1 <= BWI_TPCTL1_MAX,
|
|
("tp_ctrl1 %d", new_tpctl->tp_ctrl1));
|
|
|
|
tpctl->bbp_atten = new_tpctl->bbp_atten;
|
|
tpctl->rf_atten = new_tpctl->rf_atten;
|
|
tpctl->tp_ctrl1 = new_tpctl->tp_ctrl1;
|
|
}
|
|
|
|
/* Set BBP attenuation */
|
|
bwi_phy_set_bbp_atten(mac, tpctl->bbp_atten);
|
|
|
|
/* Set RF attenuation */
|
|
RF_WRITE(mac, BWI_RFR_ATTEN, tpctl->rf_atten);
|
|
MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_RF_ATTEN,
|
|
tpctl->rf_atten);
|
|
|
|
/* Set TX power */
|
|
if (rf->rf_type == BWI_RF_T_BCM2050) {
|
|
RF_FILT_SETBITS(mac, BWI_RFR_TXPWR, ~BWI_RFR_TXPWR1_MASK,
|
|
__SHIFTIN(tpctl->tp_ctrl1, BWI_RFR_TXPWR1_MASK));
|
|
}
|
|
|
|
/* Adjust RF Local Oscillator */
|
|
if (mac->mac_phy.phy_mode == IEEE80211_MODE_11G)
|
|
bwi_rf_lo_adjust(mac, tpctl);
|
|
}
|
|
|
|
static int
|
|
bwi_mac_test(struct bwi_mac *mac)
|
|
{
|
|
struct bwi_softc *sc = mac->mac_sc;
|
|
uint32_t orig_val, val;
|
|
|
|
#define TEST_VAL1 0xaa5555aa
|
|
#define TEST_VAL2 0x55aaaa55
|
|
|
|
/* Save it for later restoring */
|
|
orig_val = MOBJ_READ_4(mac, BWI_COMM_MOBJ, 0);
|
|
|
|
/* Test 1 */
|
|
MOBJ_WRITE_4(mac, BWI_COMM_MOBJ, 0, TEST_VAL1);
|
|
val = MOBJ_READ_4(mac, BWI_COMM_MOBJ, 0);
|
|
if (val != TEST_VAL1) {
|
|
device_printf(sc->sc_dev, "TEST1 failed\n");
|
|
return ENXIO;
|
|
}
|
|
|
|
/* Test 2 */
|
|
MOBJ_WRITE_4(mac, BWI_COMM_MOBJ, 0, TEST_VAL2);
|
|
val = MOBJ_READ_4(mac, BWI_COMM_MOBJ, 0);
|
|
if (val != TEST_VAL2) {
|
|
device_printf(sc->sc_dev, "TEST2 failed\n");
|
|
return ENXIO;
|
|
}
|
|
|
|
/* Restore to the original value */
|
|
MOBJ_WRITE_4(mac, BWI_COMM_MOBJ, 0, orig_val);
|
|
|
|
val = CSR_READ_4(sc, BWI_MAC_STATUS);
|
|
if ((val & ~BWI_MAC_STATUS_PHYLNK) != BWI_MAC_STATUS_IHREN) {
|
|
device_printf(sc->sc_dev, "%s failed, MAC status 0x%08x\n",
|
|
__func__, val);
|
|
return ENXIO;
|
|
}
|
|
|
|
val = CSR_READ_4(sc, BWI_MAC_INTR_STATUS);
|
|
if (val != 0) {
|
|
device_printf(sc->sc_dev, "%s failed, intr status %08x\n",
|
|
__func__, val);
|
|
return ENXIO;
|
|
}
|
|
|
|
#undef TEST_VAL2
|
|
#undef TEST_VAL1
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
bwi_mac_setup_tpctl(struct bwi_mac *mac)
|
|
{
|
|
struct bwi_softc *sc = mac->mac_sc;
|
|
struct bwi_rf *rf = &mac->mac_rf;
|
|
struct bwi_phy *phy = &mac->mac_phy;
|
|
struct bwi_tpctl *tpctl = &mac->mac_tpctl;
|
|
|
|
/* Calc BBP attenuation */
|
|
if (rf->rf_type == BWI_RF_T_BCM2050 && rf->rf_rev < 6)
|
|
tpctl->bbp_atten = 0;
|
|
else
|
|
tpctl->bbp_atten = 2;
|
|
|
|
/* Calc TX power CTRL1?? */
|
|
tpctl->tp_ctrl1 = 0;
|
|
if (rf->rf_type == BWI_RF_T_BCM2050) {
|
|
if (rf->rf_rev == 1)
|
|
tpctl->tp_ctrl1 = 3;
|
|
else if (rf->rf_rev < 6)
|
|
tpctl->tp_ctrl1 = 2;
|
|
else if (rf->rf_rev == 8)
|
|
tpctl->tp_ctrl1 = 1;
|
|
}
|
|
|
|
/* Empty TX power CTRL2?? */
|
|
tpctl->tp_ctrl2 = 0xffff;
|
|
|
|
/*
|
|
* Calc RF attenuation
|
|
*/
|
|
if (phy->phy_mode == IEEE80211_MODE_11A) {
|
|
tpctl->rf_atten = 0x60;
|
|
goto back;
|
|
}
|
|
|
|
if (BWI_IS_BRCM_BCM4309G(sc) && sc->sc_pci_revid < 0x51) {
|
|
tpctl->rf_atten = sc->sc_pci_revid < 0x43 ? 2 : 3;
|
|
goto back;
|
|
}
|
|
|
|
tpctl->rf_atten = 5;
|
|
|
|
if (rf->rf_type != BWI_RF_T_BCM2050) {
|
|
if (rf->rf_type == BWI_RF_T_BCM2053 && rf->rf_rev == 1)
|
|
tpctl->rf_atten = 6;
|
|
goto back;
|
|
}
|
|
|
|
/*
|
|
* NB: If we reaches here and the card is BRCM_BCM4309G,
|
|
* then the card's PCI revision must >= 0x51
|
|
*/
|
|
|
|
/* BCM2050 RF */
|
|
switch (rf->rf_rev) {
|
|
case 1:
|
|
if (phy->phy_mode == IEEE80211_MODE_11G) {
|
|
if (BWI_IS_BRCM_BCM4309G(sc) || BWI_IS_BRCM_BU4306(sc))
|
|
tpctl->rf_atten = 3;
|
|
else
|
|
tpctl->rf_atten = 1;
|
|
} else {
|
|
if (BWI_IS_BRCM_BCM4309G(sc))
|
|
tpctl->rf_atten = 7;
|
|
else
|
|
tpctl->rf_atten = 6;
|
|
}
|
|
break;
|
|
case 2:
|
|
if (phy->phy_mode == IEEE80211_MODE_11G) {
|
|
/*
|
|
* NOTE: Order of following conditions is critical
|
|
*/
|
|
if (BWI_IS_BRCM_BCM4309G(sc))
|
|
tpctl->rf_atten = 3;
|
|
else if (BWI_IS_BRCM_BU4306(sc))
|
|
tpctl->rf_atten = 5;
|
|
else if (sc->sc_bbp_id == BWI_BBPID_BCM4320)
|
|
tpctl->rf_atten = 4;
|
|
else
|
|
tpctl->rf_atten = 3;
|
|
} else {
|
|
tpctl->rf_atten = 6;
|
|
}
|
|
break;
|
|
case 4:
|
|
case 5:
|
|
tpctl->rf_atten = 1;
|
|
break;
|
|
case 8:
|
|
tpctl->rf_atten = 0x1a;
|
|
break;
|
|
}
|
|
back:
|
|
DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_INIT | BWI_DBG_TXPOWER,
|
|
"bbp atten: %u, rf atten: %u, ctrl1: %u, ctrl2: %u\n",
|
|
tpctl->bbp_atten, tpctl->rf_atten,
|
|
tpctl->tp_ctrl1, tpctl->tp_ctrl2);
|
|
}
|
|
|
|
void
|
|
bwi_mac_dummy_xmit(struct bwi_mac *mac)
|
|
{
|
|
#define PACKET_LEN 5
|
|
static const uint32_t packet_11a[PACKET_LEN] =
|
|
{ 0x000201cc, 0x00d40000, 0x00000000, 0x01000000, 0x00000000 };
|
|
static const uint32_t packet_11bg[PACKET_LEN] =
|
|
{ 0x000b846e, 0x00d40000, 0x00000000, 0x01000000, 0x00000000 };
|
|
|
|
struct bwi_softc *sc = mac->mac_sc;
|
|
struct bwi_rf *rf = &mac->mac_rf;
|
|
const uint32_t *packet;
|
|
uint16_t val_50c;
|
|
int wait_max, i;
|
|
|
|
if (mac->mac_phy.phy_mode == IEEE80211_MODE_11A) {
|
|
wait_max = 30;
|
|
packet = packet_11a;
|
|
val_50c = 1;
|
|
} else {
|
|
wait_max = 250;
|
|
packet = packet_11bg;
|
|
val_50c = 0;
|
|
}
|
|
|
|
for (i = 0; i < PACKET_LEN; ++i)
|
|
TMPLT_WRITE_4(mac, i * 4, packet[i]);
|
|
|
|
CSR_READ_4(sc, BWI_MAC_STATUS); /* dummy read */
|
|
|
|
CSR_WRITE_2(sc, 0x568, 0);
|
|
CSR_WRITE_2(sc, 0x7c0, 0);
|
|
CSR_WRITE_2(sc, 0x50c, val_50c);
|
|
CSR_WRITE_2(sc, 0x508, 0);
|
|
CSR_WRITE_2(sc, 0x50a, 0);
|
|
CSR_WRITE_2(sc, 0x54c, 0);
|
|
CSR_WRITE_2(sc, 0x56a, 0x14);
|
|
CSR_WRITE_2(sc, 0x568, 0x826);
|
|
CSR_WRITE_2(sc, 0x500, 0);
|
|
CSR_WRITE_2(sc, 0x502, 0x30);
|
|
|
|
if (rf->rf_type == BWI_RF_T_BCM2050 && rf->rf_rev <= 5)
|
|
RF_WRITE(mac, 0x51, 0x17);
|
|
|
|
for (i = 0; i < wait_max; ++i) {
|
|
if (CSR_READ_2(sc, 0x50e) & 0x80)
|
|
break;
|
|
DELAY(10);
|
|
}
|
|
for (i = 0; i < 10; ++i) {
|
|
if (CSR_READ_2(sc, 0x50e) & 0x400)
|
|
break;
|
|
DELAY(10);
|
|
}
|
|
for (i = 0; i < 10; ++i) {
|
|
if ((CSR_READ_2(sc, 0x690) & 0x100) == 0)
|
|
break;
|
|
DELAY(10);
|
|
}
|
|
|
|
if (rf->rf_type == BWI_RF_T_BCM2050 && rf->rf_rev <= 5)
|
|
RF_WRITE(mac, 0x51, 0x37);
|
|
#undef PACKET_LEN
|
|
}
|
|
|
|
void
|
|
bwi_mac_init_tpctl_11bg(struct bwi_mac *mac)
|
|
{
|
|
struct bwi_softc *sc = mac->mac_sc;
|
|
struct bwi_phy *phy = &mac->mac_phy;
|
|
struct bwi_rf *rf = &mac->mac_rf;
|
|
struct bwi_tpctl tpctl_orig;
|
|
int restore_tpctl = 0;
|
|
|
|
KASSERT(phy->phy_mode != IEEE80211_MODE_11A,
|
|
("phy_mode %d", phy->phy_mode));
|
|
|
|
if (BWI_IS_BRCM_BU4306(sc))
|
|
return;
|
|
|
|
PHY_WRITE(mac, 0x28, 0x8018);
|
|
CSR_CLRBITS_2(sc, BWI_BBP_ATTEN, 0x20);
|
|
|
|
if (phy->phy_mode == IEEE80211_MODE_11G) {
|
|
if ((phy->phy_flags & BWI_PHY_F_LINKED) == 0)
|
|
return;
|
|
PHY_WRITE(mac, 0x47a, 0xc111);
|
|
}
|
|
if (mac->mac_flags & BWI_MAC_F_TPCTL_INITED)
|
|
return;
|
|
|
|
if (phy->phy_mode == IEEE80211_MODE_11B && phy->phy_rev >= 2 &&
|
|
rf->rf_type == BWI_RF_T_BCM2050) {
|
|
RF_SETBITS(mac, 0x76, 0x84);
|
|
} else {
|
|
struct bwi_tpctl tpctl;
|
|
|
|
/* Backup original TX power control variables */
|
|
bcopy(&mac->mac_tpctl, &tpctl_orig, sizeof(tpctl_orig));
|
|
restore_tpctl = 1;
|
|
|
|
bcopy(&mac->mac_tpctl, &tpctl, sizeof(tpctl));
|
|
tpctl.bbp_atten = 11;
|
|
tpctl.tp_ctrl1 = 0;
|
|
#ifdef notyet
|
|
if (rf->rf_rev >= 6 && rf->rf_rev <= 8)
|
|
tpctl.rf_atten = 31;
|
|
else
|
|
#endif
|
|
tpctl.rf_atten = 9;
|
|
|
|
bwi_mac_set_tpctl_11bg(mac, &tpctl);
|
|
}
|
|
|
|
bwi_mac_dummy_xmit(mac);
|
|
|
|
mac->mac_flags |= BWI_MAC_F_TPCTL_INITED;
|
|
rf->rf_base_tssi = PHY_READ(mac, 0x29);
|
|
DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_INIT | BWI_DBG_TXPOWER,
|
|
"base tssi %d\n", rf->rf_base_tssi);
|
|
|
|
if (abs(rf->rf_base_tssi - rf->rf_idle_tssi) >= 20) {
|
|
device_printf(sc->sc_dev, "base tssi measure failed\n");
|
|
mac->mac_flags |= BWI_MAC_F_TPCTL_ERROR;
|
|
}
|
|
|
|
if (restore_tpctl)
|
|
bwi_mac_set_tpctl_11bg(mac, &tpctl_orig);
|
|
else
|
|
RF_CLRBITS(mac, 0x76, 0x84);
|
|
|
|
bwi_rf_clear_tssi(mac);
|
|
}
|
|
|
|
void
|
|
bwi_mac_detach(struct bwi_mac *mac)
|
|
{
|
|
bwi_mac_fw_free(mac);
|
|
}
|
|
|
|
static __inline int
|
|
bwi_fwimage_is_valid(struct bwi_softc *sc, const struct firmware *fw,
|
|
uint8_t fw_type)
|
|
{
|
|
const struct bwi_fwhdr *hdr;
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
|
|
if (fw->datasize < sizeof(*hdr)) {
|
|
if_printf(ifp, "invalid firmware (%s): invalid size %zu\n",
|
|
fw->name, fw->datasize);
|
|
return 0;
|
|
}
|
|
|
|
hdr = (const struct bwi_fwhdr *)fw->data;
|
|
|
|
if (fw_type != BWI_FW_T_IV) {
|
|
/*
|
|
* Don't verify IV's size, it has different meaning
|
|
*/
|
|
if (be32toh(hdr->fw_size) != fw->datasize - sizeof(*hdr)) {
|
|
if_printf(ifp, "invalid firmware (%s): size mismatch, "
|
|
"fw %u, real %zu\n", fw->name,
|
|
be32toh(hdr->fw_size),
|
|
fw->datasize - sizeof(*hdr));
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (hdr->fw_type != fw_type) {
|
|
if_printf(ifp, "invalid firmware (%s): type mismatch, "
|
|
"fw \'%c\', target \'%c\'\n", fw->name,
|
|
hdr->fw_type, fw_type);
|
|
return 0;
|
|
}
|
|
|
|
if (hdr->fw_gen != BWI_FW_GEN_1) {
|
|
if_printf(ifp, "invalid firmware (%s): wrong generation, "
|
|
"fw %d, target %d\n", fw->name,
|
|
hdr->fw_gen, BWI_FW_GEN_1);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* XXX Error cleanup
|
|
*/
|
|
static int
|
|
bwi_mac_fw_alloc(struct bwi_mac *mac)
|
|
{
|
|
struct bwi_softc *sc = mac->mac_sc;
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
char fwname[64];
|
|
int idx;
|
|
|
|
/*
|
|
* Try getting the firmware stub so firmware
|
|
* module would be loaded automatically
|
|
*/
|
|
if (mac->mac_stub == NULL) {
|
|
snprintf(fwname, sizeof(fwname), BWI_FW_STUB_PATH,
|
|
sc->sc_fw_version);
|
|
mac->mac_stub = firmware_get(fwname);
|
|
if (mac->mac_stub == NULL) {
|
|
if_printf(ifp, "request firmware %s failed\n", fwname);
|
|
return ENOMEM;
|
|
}
|
|
}
|
|
|
|
if (mac->mac_ucode == NULL) {
|
|
snprintf(fwname, sizeof(fwname), BWI_FW_UCODE_PATH,
|
|
sc->sc_fw_version,
|
|
mac->mac_rev >= 5 ? 5 : mac->mac_rev);
|
|
|
|
mac->mac_ucode = firmware_get(fwname);
|
|
if (mac->mac_ucode == NULL) {
|
|
if_printf(ifp, "request firmware %s failed\n", fwname);
|
|
return ENOMEM;
|
|
}
|
|
|
|
if (!bwi_fwimage_is_valid(sc, mac->mac_ucode, BWI_FW_T_UCODE))
|
|
return EINVAL;
|
|
}
|
|
|
|
if (mac->mac_pcm == NULL) {
|
|
snprintf(fwname, sizeof(fwname), BWI_FW_PCM_PATH,
|
|
sc->sc_fw_version,
|
|
mac->mac_rev < 5 ? 4 : 5);
|
|
|
|
mac->mac_pcm = firmware_get(fwname);
|
|
if (mac->mac_pcm == NULL) {
|
|
if_printf(ifp, "request firmware %s failed\n", fwname);
|
|
return ENOMEM;
|
|
}
|
|
|
|
if (!bwi_fwimage_is_valid(sc, mac->mac_pcm, BWI_FW_T_PCM))
|
|
return EINVAL;
|
|
}
|
|
|
|
if (mac->mac_iv == NULL) {
|
|
/* TODO: 11A */
|
|
if (mac->mac_rev == 2 || mac->mac_rev == 4) {
|
|
idx = 2;
|
|
} else if (mac->mac_rev >= 5 && mac->mac_rev <= 10) {
|
|
idx = 5;
|
|
} else {
|
|
if_printf(ifp, "no suitible IV for MAC rev %d\n",
|
|
mac->mac_rev);
|
|
return ENODEV;
|
|
}
|
|
|
|
snprintf(fwname, sizeof(fwname), BWI_FW_IV_PATH,
|
|
sc->sc_fw_version, idx);
|
|
|
|
mac->mac_iv = firmware_get(fwname);
|
|
if (mac->mac_iv == NULL) {
|
|
if_printf(ifp, "request firmware %s failed\n", fwname);
|
|
return ENOMEM;
|
|
}
|
|
if (!bwi_fwimage_is_valid(sc, mac->mac_iv, BWI_FW_T_IV))
|
|
return EINVAL;
|
|
}
|
|
|
|
if (mac->mac_iv_ext == NULL) {
|
|
/* TODO: 11A */
|
|
if (mac->mac_rev == 2 || mac->mac_rev == 4 ||
|
|
mac->mac_rev >= 11) {
|
|
/* No extended IV */
|
|
goto back;
|
|
} else if (mac->mac_rev >= 5 && mac->mac_rev <= 10) {
|
|
idx = 5;
|
|
} else {
|
|
if_printf(ifp, "no suitible ExtIV for MAC rev %d\n",
|
|
mac->mac_rev);
|
|
return ENODEV;
|
|
}
|
|
|
|
snprintf(fwname, sizeof(fwname), BWI_FW_IV_EXT_PATH,
|
|
sc->sc_fw_version, idx);
|
|
|
|
mac->mac_iv_ext = firmware_get(fwname);
|
|
if (mac->mac_iv_ext == NULL) {
|
|
if_printf(ifp, "request firmware %s failed\n", fwname);
|
|
return ENOMEM;
|
|
}
|
|
if (!bwi_fwimage_is_valid(sc, mac->mac_iv_ext, BWI_FW_T_IV))
|
|
return EINVAL;
|
|
}
|
|
back:
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
bwi_mac_fw_free(struct bwi_mac *mac)
|
|
{
|
|
if (mac->mac_ucode != NULL) {
|
|
firmware_put(mac->mac_ucode, FIRMWARE_UNLOAD);
|
|
mac->mac_ucode = NULL;
|
|
}
|
|
|
|
if (mac->mac_pcm != NULL) {
|
|
firmware_put(mac->mac_pcm, FIRMWARE_UNLOAD);
|
|
mac->mac_pcm = NULL;
|
|
}
|
|
|
|
if (mac->mac_iv != NULL) {
|
|
firmware_put(mac->mac_iv, FIRMWARE_UNLOAD);
|
|
mac->mac_iv = NULL;
|
|
}
|
|
|
|
if (mac->mac_iv_ext != NULL) {
|
|
firmware_put(mac->mac_iv_ext, FIRMWARE_UNLOAD);
|
|
mac->mac_iv_ext = NULL;
|
|
}
|
|
|
|
if (mac->mac_stub != NULL) {
|
|
firmware_put(mac->mac_stub, FIRMWARE_UNLOAD);
|
|
mac->mac_stub = NULL;
|
|
}
|
|
}
|
|
|
|
static int
|
|
bwi_mac_fw_load(struct bwi_mac *mac)
|
|
{
|
|
struct bwi_softc *sc = mac->mac_sc;
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
const uint32_t *fw;
|
|
uint16_t fw_rev;
|
|
int fw_len, i;
|
|
|
|
/*
|
|
* Load ucode image
|
|
*/
|
|
fw = (const uint32_t *)
|
|
((const uint8_t *)mac->mac_ucode->data + BWI_FWHDR_SZ);
|
|
fw_len = (mac->mac_ucode->datasize - BWI_FWHDR_SZ) / sizeof(uint32_t);
|
|
|
|
CSR_WRITE_4(sc, BWI_MOBJ_CTRL,
|
|
BWI_MOBJ_CTRL_VAL(
|
|
BWI_FW_UCODE_MOBJ | BWI_WR_MOBJ_AUTOINC, 0));
|
|
for (i = 0; i < fw_len; ++i) {
|
|
CSR_WRITE_4(sc, BWI_MOBJ_DATA, be32toh(fw[i]));
|
|
DELAY(10);
|
|
}
|
|
|
|
/*
|
|
* Load PCM image
|
|
*/
|
|
fw = (const uint32_t *)
|
|
((const uint8_t *)mac->mac_pcm->data + BWI_FWHDR_SZ);
|
|
fw_len = (mac->mac_pcm->datasize - BWI_FWHDR_SZ) / sizeof(uint32_t);
|
|
|
|
CSR_WRITE_4(sc, BWI_MOBJ_CTRL,
|
|
BWI_MOBJ_CTRL_VAL(BWI_FW_PCM_MOBJ, 0x01ea));
|
|
CSR_WRITE_4(sc, BWI_MOBJ_DATA, 0x4000);
|
|
|
|
CSR_WRITE_4(sc, BWI_MOBJ_CTRL,
|
|
BWI_MOBJ_CTRL_VAL(BWI_FW_PCM_MOBJ, 0x01eb));
|
|
for (i = 0; i < fw_len; ++i) {
|
|
CSR_WRITE_4(sc, BWI_MOBJ_DATA, be32toh(fw[i]));
|
|
DELAY(10);
|
|
}
|
|
|
|
CSR_WRITE_4(sc, BWI_MAC_INTR_STATUS, BWI_ALL_INTRS);
|
|
CSR_WRITE_4(sc, BWI_MAC_STATUS,
|
|
BWI_MAC_STATUS_UCODE_START |
|
|
BWI_MAC_STATUS_IHREN |
|
|
BWI_MAC_STATUS_INFRA);
|
|
|
|
#define NRETRY 200
|
|
|
|
for (i = 0; i < NRETRY; ++i) {
|
|
uint32_t intr_status;
|
|
|
|
intr_status = CSR_READ_4(sc, BWI_MAC_INTR_STATUS);
|
|
if (intr_status == BWI_INTR_READY)
|
|
break;
|
|
DELAY(10);
|
|
}
|
|
if (i == NRETRY) {
|
|
if_printf(ifp, "firmware (ucode&pcm) loading timed out\n");
|
|
return ETIMEDOUT;
|
|
}
|
|
|
|
#undef NRETRY
|
|
|
|
CSR_READ_4(sc, BWI_MAC_INTR_STATUS); /* dummy read */
|
|
|
|
fw_rev = MOBJ_READ_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_FWREV);
|
|
if (fw_rev > BWI_FW_VERSION3_REVMAX) {
|
|
if_printf(ifp, "firmware version 4 is not supported yet\n");
|
|
return ENODEV;
|
|
}
|
|
|
|
if_printf(ifp, "firmware rev 0x%04x, patch level 0x%04x\n", fw_rev,
|
|
MOBJ_READ_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_FWPATCHLV));
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
bwi_mac_gpio_init(struct bwi_mac *mac)
|
|
{
|
|
struct bwi_softc *sc = mac->mac_sc;
|
|
struct bwi_regwin *old, *gpio_rw;
|
|
uint32_t filt, bits;
|
|
int error;
|
|
|
|
CSR_CLRBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_GPOSEL_MASK);
|
|
/* TODO:LED */
|
|
|
|
CSR_SETBITS_2(sc, BWI_MAC_GPIO_MASK, 0xf);
|
|
|
|
filt = 0x1f;
|
|
bits = 0xf;
|
|
if (sc->sc_bbp_id == BWI_BBPID_BCM4301) {
|
|
filt |= 0x60;
|
|
bits |= 0x60;
|
|
}
|
|
if (sc->sc_card_flags & BWI_CARD_F_PA_GPIO9) {
|
|
CSR_SETBITS_2(sc, BWI_MAC_GPIO_MASK, 0x200);
|
|
filt |= 0x200;
|
|
bits |= 0x200;
|
|
}
|
|
|
|
gpio_rw = BWI_GPIO_REGWIN(sc);
|
|
error = bwi_regwin_switch(sc, gpio_rw, &old);
|
|
if (error)
|
|
return error;
|
|
|
|
CSR_FILT_SETBITS_4(sc, BWI_GPIO_CTRL, filt, bits);
|
|
|
|
return bwi_regwin_switch(sc, old, NULL);
|
|
}
|
|
|
|
static int
|
|
bwi_mac_gpio_fini(struct bwi_mac *mac)
|
|
{
|
|
struct bwi_softc *sc = mac->mac_sc;
|
|
struct bwi_regwin *old, *gpio_rw;
|
|
int error;
|
|
|
|
gpio_rw = BWI_GPIO_REGWIN(sc);
|
|
error = bwi_regwin_switch(sc, gpio_rw, &old);
|
|
if (error)
|
|
return error;
|
|
|
|
CSR_WRITE_4(sc, BWI_GPIO_CTRL, 0);
|
|
|
|
return bwi_regwin_switch(sc, old, NULL);
|
|
}
|
|
|
|
static int
|
|
bwi_mac_fw_load_iv(struct bwi_mac *mac, const struct firmware *fw)
|
|
{
|
|
struct bwi_softc *sc = mac->mac_sc;
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
const struct bwi_fwhdr *hdr;
|
|
const struct bwi_fw_iv *iv;
|
|
int n, i, iv_img_size;
|
|
|
|
/* Get the number of IVs in the IV image */
|
|
hdr = (const struct bwi_fwhdr *)fw->data;
|
|
n = be32toh(hdr->fw_iv_cnt);
|
|
DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_INIT | BWI_DBG_FIRMWARE,
|
|
"IV count %d\n", n);
|
|
|
|
/* Calculate the IV image size, for later sanity check */
|
|
iv_img_size = fw->datasize - sizeof(*hdr);
|
|
|
|
/* Locate the first IV */
|
|
iv = (const struct bwi_fw_iv *)
|
|
((const uint8_t *)fw->data + sizeof(*hdr));
|
|
|
|
for (i = 0; i < n; ++i) {
|
|
uint16_t iv_ofs, ofs;
|
|
int sz = 0;
|
|
|
|
if (iv_img_size < sizeof(iv->iv_ofs)) {
|
|
if_printf(ifp, "invalid IV image, ofs\n");
|
|
return EINVAL;
|
|
}
|
|
iv_img_size -= sizeof(iv->iv_ofs);
|
|
sz += sizeof(iv->iv_ofs);
|
|
|
|
iv_ofs = be16toh(iv->iv_ofs);
|
|
|
|
ofs = __SHIFTOUT(iv_ofs, BWI_FW_IV_OFS_MASK);
|
|
if (ofs >= 0x1000) {
|
|
if_printf(ifp, "invalid ofs (0x%04x) "
|
|
"for %dth iv\n", ofs, i);
|
|
return EINVAL;
|
|
}
|
|
|
|
if (iv_ofs & BWI_FW_IV_IS_32BIT) {
|
|
uint32_t val32;
|
|
|
|
if (iv_img_size < sizeof(iv->iv_val.val32)) {
|
|
if_printf(ifp, "invalid IV image, val32\n");
|
|
return EINVAL;
|
|
}
|
|
iv_img_size -= sizeof(iv->iv_val.val32);
|
|
sz += sizeof(iv->iv_val.val32);
|
|
|
|
val32 = be32toh(iv->iv_val.val32);
|
|
CSR_WRITE_4(sc, ofs, val32);
|
|
} else {
|
|
uint16_t val16;
|
|
|
|
if (iv_img_size < sizeof(iv->iv_val.val16)) {
|
|
if_printf(ifp, "invalid IV image, val16\n");
|
|
return EINVAL;
|
|
}
|
|
iv_img_size -= sizeof(iv->iv_val.val16);
|
|
sz += sizeof(iv->iv_val.val16);
|
|
|
|
val16 = be16toh(iv->iv_val.val16);
|
|
CSR_WRITE_2(sc, ofs, val16);
|
|
}
|
|
|
|
iv = (const struct bwi_fw_iv *)((const uint8_t *)iv + sz);
|
|
}
|
|
|
|
if (iv_img_size != 0) {
|
|
if_printf(ifp, "invalid IV image, size left %d\n", iv_img_size);
|
|
return EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
bwi_mac_fw_init(struct bwi_mac *mac)
|
|
{
|
|
struct ifnet *ifp = mac->mac_sc->sc_ifp;
|
|
int error;
|
|
|
|
error = bwi_mac_fw_load_iv(mac, mac->mac_iv);
|
|
if (error) {
|
|
if_printf(ifp, "load IV failed\n");
|
|
return error;
|
|
}
|
|
|
|
if (mac->mac_iv_ext != NULL) {
|
|
error = bwi_mac_fw_load_iv(mac, mac->mac_iv_ext);
|
|
if (error)
|
|
if_printf(ifp, "load ExtIV failed\n");
|
|
}
|
|
return error;
|
|
}
|
|
|
|
static void
|
|
bwi_mac_opmode_init(struct bwi_mac *mac)
|
|
{
|
|
struct bwi_softc *sc = mac->mac_sc;
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
uint32_t mac_status;
|
|
uint16_t pre_tbtt;
|
|
|
|
CSR_CLRBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_INFRA);
|
|
CSR_SETBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_INFRA);
|
|
|
|
/* Set probe resp timeout to infinite */
|
|
MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_PROBE_RESP_TO, 0);
|
|
|
|
/*
|
|
* TODO: factor out following part
|
|
*/
|
|
|
|
mac_status = CSR_READ_4(sc, BWI_MAC_STATUS);
|
|
mac_status &= ~(BWI_MAC_STATUS_OPMODE_HOSTAP |
|
|
BWI_MAC_STATUS_PASS_CTL |
|
|
BWI_MAC_STATUS_PASS_BCN |
|
|
BWI_MAC_STATUS_PASS_BADPLCP |
|
|
BWI_MAC_STATUS_PASS_BADFCS |
|
|
BWI_MAC_STATUS_PROMISC);
|
|
mac_status |= BWI_MAC_STATUS_INFRA;
|
|
|
|
/* Always turn on PROMISC on old hardware */
|
|
if (mac->mac_rev < 5)
|
|
mac_status |= BWI_MAC_STATUS_PROMISC;
|
|
|
|
switch (ic->ic_opmode) {
|
|
case IEEE80211_M_IBSS:
|
|
mac_status &= ~BWI_MAC_STATUS_INFRA;
|
|
break;
|
|
case IEEE80211_M_HOSTAP:
|
|
mac_status |= BWI_MAC_STATUS_OPMODE_HOSTAP;
|
|
break;
|
|
case IEEE80211_M_MONITOR:
|
|
#if 0
|
|
/* Do you want data from your microwave oven? */
|
|
mac_status |= BWI_MAC_STATUS_PASS_CTL |
|
|
BWI_MAC_STATUS_PASS_BADPLCP |
|
|
BWI_MAC_STATUS_PASS_BADFCS;
|
|
#else
|
|
mac_status |= BWI_MAC_STATUS_PASS_CTL;
|
|
#endif
|
|
/* Promisc? */
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (ic->ic_ifp->if_flags & IFF_PROMISC)
|
|
mac_status |= BWI_MAC_STATUS_PROMISC;
|
|
|
|
CSR_WRITE_4(sc, BWI_MAC_STATUS, mac_status);
|
|
|
|
if (ic->ic_opmode != IEEE80211_M_IBSS &&
|
|
ic->ic_opmode != IEEE80211_M_HOSTAP) {
|
|
if (sc->sc_bbp_id == BWI_BBPID_BCM4306 && sc->sc_bbp_rev == 3)
|
|
pre_tbtt = 100;
|
|
else
|
|
pre_tbtt = 50;
|
|
} else {
|
|
pre_tbtt = 2;
|
|
}
|
|
CSR_WRITE_2(sc, BWI_MAC_PRE_TBTT, pre_tbtt);
|
|
}
|
|
|
|
static void
|
|
bwi_mac_hostflags_init(struct bwi_mac *mac)
|
|
{
|
|
struct bwi_softc *sc = mac->mac_sc;
|
|
struct bwi_phy *phy = &mac->mac_phy;
|
|
struct bwi_rf *rf = &mac->mac_rf;
|
|
uint64_t host_flags;
|
|
|
|
if (phy->phy_mode == IEEE80211_MODE_11A)
|
|
return;
|
|
|
|
host_flags = HFLAGS_READ(mac);
|
|
host_flags |= BWI_HFLAG_SYM_WA;
|
|
|
|
if (phy->phy_mode == IEEE80211_MODE_11G) {
|
|
if (phy->phy_rev == 1)
|
|
host_flags |= BWI_HFLAG_GDC_WA;
|
|
if (sc->sc_card_flags & BWI_CARD_F_PA_GPIO9)
|
|
host_flags |= BWI_HFLAG_OFDM_PA;
|
|
} else if (phy->phy_mode == IEEE80211_MODE_11B) {
|
|
if (phy->phy_rev >= 2 && rf->rf_type == BWI_RF_T_BCM2050)
|
|
host_flags &= ~BWI_HFLAG_GDC_WA;
|
|
} else {
|
|
panic("unknown PHY mode %u\n", phy->phy_mode);
|
|
}
|
|
|
|
HFLAGS_WRITE(mac, host_flags);
|
|
}
|
|
|
|
static void
|
|
bwi_mac_bss_param_init(struct bwi_mac *mac)
|
|
{
|
|
struct bwi_softc *sc = mac->mac_sc;
|
|
struct bwi_phy *phy = &mac->mac_phy;
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
const struct ieee80211_rate_table *rt;
|
|
struct bwi_retry_lim lim;
|
|
uint16_t cw_min;
|
|
|
|
/*
|
|
* Set short/long retry limits
|
|
*/
|
|
bzero(&lim, sizeof(lim));
|
|
lim.shretry = BWI_SHRETRY;
|
|
lim.shretry_fb = BWI_SHRETRY_FB;
|
|
lim.lgretry = BWI_LGRETRY;
|
|
lim.lgretry_fb = BWI_LGRETRY_FB;
|
|
bwi_mac_set_retry_lim(mac, &lim);
|
|
|
|
/*
|
|
* Implicitly prevent firmware from sending probe response
|
|
* by setting its "probe response timeout" to 1us.
|
|
*/
|
|
MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_PROBE_RESP_TO, 1);
|
|
|
|
/*
|
|
* XXX MAC level acknowledge and CW min/max should depend
|
|
* on the char rateset of the IBSS/BSS to join.
|
|
* XXX this is all wrong; should be done on channel change
|
|
*/
|
|
if (phy->phy_mode == IEEE80211_MODE_11B) {
|
|
rt = ieee80211_get_ratetable(
|
|
ieee80211_find_channel(ic, 2412, IEEE80211_CHAN_B));
|
|
bwi_mac_set_ackrates(mac, rt,
|
|
&ic->ic_sup_rates[IEEE80211_MODE_11B]);
|
|
} else {
|
|
rt = ieee80211_get_ratetable(
|
|
ieee80211_find_channel(ic, 2412, IEEE80211_CHAN_G));
|
|
bwi_mac_set_ackrates(mac, rt,
|
|
&ic->ic_sup_rates[IEEE80211_MODE_11G]);
|
|
}
|
|
|
|
/*
|
|
* Set CW min
|
|
*/
|
|
if (phy->phy_mode == IEEE80211_MODE_11B)
|
|
cw_min = IEEE80211_CW_MIN_0;
|
|
else
|
|
cw_min = IEEE80211_CW_MIN_1;
|
|
MOBJ_WRITE_2(mac, BWI_80211_MOBJ, BWI_80211_MOBJ_CWMIN, cw_min);
|
|
|
|
/*
|
|
* Set CW max
|
|
*/
|
|
MOBJ_WRITE_2(mac, BWI_80211_MOBJ, BWI_80211_MOBJ_CWMAX,
|
|
IEEE80211_CW_MAX);
|
|
}
|
|
|
|
static void
|
|
bwi_mac_set_retry_lim(struct bwi_mac *mac, const struct bwi_retry_lim *lim)
|
|
{
|
|
/* Short/Long retry limit */
|
|
MOBJ_WRITE_2(mac, BWI_80211_MOBJ, BWI_80211_MOBJ_SHRETRY,
|
|
lim->shretry);
|
|
MOBJ_WRITE_2(mac, BWI_80211_MOBJ, BWI_80211_MOBJ_LGRETRY,
|
|
lim->lgretry);
|
|
|
|
/* Short/Long retry fallback limit */
|
|
MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_SHRETRY_FB,
|
|
lim->shretry_fb);
|
|
MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_LGRETEY_FB,
|
|
lim->lgretry_fb);
|
|
}
|
|
|
|
static void
|
|
bwi_mac_set_ackrates(struct bwi_mac *mac, const struct ieee80211_rate_table *rt,
|
|
const struct ieee80211_rateset *rs)
|
|
{
|
|
int i;
|
|
|
|
/* XXX not standard conforming */
|
|
for (i = 0; i < rs->rs_nrates; ++i) {
|
|
enum ieee80211_phytype modtype;
|
|
uint16_t ofs;
|
|
|
|
modtype = ieee80211_rate2phytype(rt, rs->rs_rates[i]);
|
|
switch (modtype) {
|
|
case IEEE80211_T_DS:
|
|
ofs = 0x4c0;
|
|
break;
|
|
case IEEE80211_T_OFDM:
|
|
ofs = 0x480;
|
|
break;
|
|
default:
|
|
panic("unsupported modtype %u\n", modtype);
|
|
}
|
|
ofs += 2*(ieee80211_rate2plcp(rs->rs_rates[i], modtype) & 0xf);
|
|
|
|
MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, ofs + 0x20,
|
|
MOBJ_READ_2(mac, BWI_COMM_MOBJ, ofs));
|
|
}
|
|
}
|
|
|
|
int
|
|
bwi_mac_start(struct bwi_mac *mac)
|
|
{
|
|
struct bwi_softc *sc = mac->mac_sc;
|
|
|
|
CSR_SETBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_ENABLE);
|
|
CSR_WRITE_4(sc, BWI_MAC_INTR_STATUS, BWI_INTR_READY);
|
|
|
|
/* Flush pending bus writes */
|
|
CSR_READ_4(sc, BWI_MAC_STATUS);
|
|
CSR_READ_4(sc, BWI_MAC_INTR_STATUS);
|
|
|
|
return bwi_mac_config_ps(mac);
|
|
}
|
|
|
|
int
|
|
bwi_mac_stop(struct bwi_mac *mac)
|
|
{
|
|
struct bwi_softc *sc = mac->mac_sc;
|
|
int error, i;
|
|
|
|
error = bwi_mac_config_ps(mac);
|
|
if (error)
|
|
return error;
|
|
|
|
CSR_CLRBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_ENABLE);
|
|
|
|
/* Flush pending bus write */
|
|
CSR_READ_4(sc, BWI_MAC_STATUS);
|
|
|
|
#define NRETRY 10000
|
|
for (i = 0; i < NRETRY; ++i) {
|
|
if (CSR_READ_4(sc, BWI_MAC_INTR_STATUS) & BWI_INTR_READY)
|
|
break;
|
|
DELAY(1);
|
|
}
|
|
if (i == NRETRY) {
|
|
device_printf(sc->sc_dev, "can't stop MAC\n");
|
|
return ETIMEDOUT;
|
|
}
|
|
#undef NRETRY
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
bwi_mac_config_ps(struct bwi_mac *mac)
|
|
{
|
|
struct bwi_softc *sc = mac->mac_sc;
|
|
uint32_t status;
|
|
|
|
status = CSR_READ_4(sc, BWI_MAC_STATUS);
|
|
|
|
status &= ~BWI_MAC_STATUS_HW_PS;
|
|
status |= BWI_MAC_STATUS_WAKEUP;
|
|
CSR_WRITE_4(sc, BWI_MAC_STATUS, status);
|
|
|
|
/* Flush pending bus write */
|
|
CSR_READ_4(sc, BWI_MAC_STATUS);
|
|
|
|
if (mac->mac_rev >= 5) {
|
|
int i;
|
|
|
|
#define NRETRY 100
|
|
for (i = 0; i < NRETRY; ++i) {
|
|
if (MOBJ_READ_2(mac, BWI_COMM_MOBJ,
|
|
BWI_COMM_MOBJ_UCODE_STATE) != BWI_UCODE_STATE_PS)
|
|
break;
|
|
DELAY(10);
|
|
}
|
|
if (i == NRETRY) {
|
|
device_printf(sc->sc_dev, "config PS failed\n");
|
|
return ETIMEDOUT;
|
|
}
|
|
#undef NRETRY
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
bwi_mac_reset_hwkeys(struct bwi_mac *mac)
|
|
{
|
|
/* TODO: firmware crypto */
|
|
MOBJ_READ_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_KEYTABLE_OFS);
|
|
}
|
|
|
|
void
|
|
bwi_mac_shutdown(struct bwi_mac *mac)
|
|
{
|
|
struct bwi_softc *sc = mac->mac_sc;
|
|
int i;
|
|
|
|
if (mac->mac_flags & BWI_MAC_F_HAS_TXSTATS)
|
|
sc->sc_free_txstats(sc);
|
|
|
|
sc->sc_free_rx_ring(sc);
|
|
|
|
for (i = 0; i < BWI_TX_NRING; ++i)
|
|
sc->sc_free_tx_ring(sc, i);
|
|
|
|
bwi_rf_off(mac);
|
|
|
|
/* TODO:LED */
|
|
|
|
bwi_mac_gpio_fini(mac);
|
|
|
|
bwi_rf_off(mac); /* XXX again */
|
|
CSR_WRITE_2(sc, BWI_BBP_ATTEN, BWI_BBP_ATTEN_MAGIC);
|
|
bwi_regwin_disable(sc, &mac->mac_regwin, 0);
|
|
|
|
mac->mac_flags &= ~BWI_MAC_F_INITED;
|
|
}
|
|
|
|
static int
|
|
bwi_mac_get_property(struct bwi_mac *mac)
|
|
{
|
|
struct bwi_softc *sc = mac->mac_sc;
|
|
enum bwi_bus_space old_bus_space;
|
|
uint32_t val;
|
|
|
|
/*
|
|
* Byte swap
|
|
*/
|
|
val = CSR_READ_4(sc, BWI_MAC_STATUS);
|
|
if (val & BWI_MAC_STATUS_BSWAP) {
|
|
DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_ATTACH, "%s\n",
|
|
"need byte swap");
|
|
mac->mac_flags |= BWI_MAC_F_BSWAP;
|
|
}
|
|
|
|
/*
|
|
* DMA address space
|
|
*/
|
|
old_bus_space = sc->sc_bus_space;
|
|
|
|
val = CSR_READ_4(sc, BWI_STATE_HI);
|
|
if (__SHIFTOUT(val, BWI_STATE_HI_FLAGS_MASK) &
|
|
BWI_STATE_HI_FLAG_64BIT) {
|
|
/* 64bit address */
|
|
sc->sc_bus_space = BWI_BUS_SPACE_64BIT;
|
|
DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_ATTACH, "%s\n",
|
|
"64bit bus space");
|
|
} else {
|
|
uint32_t txrx_reg = BWI_TXRX_CTRL_BASE + BWI_TX32_CTRL;
|
|
|
|
CSR_WRITE_4(sc, txrx_reg, BWI_TXRX32_CTRL_ADDRHI_MASK);
|
|
if (CSR_READ_4(sc, txrx_reg) & BWI_TXRX32_CTRL_ADDRHI_MASK) {
|
|
/* 32bit address */
|
|
sc->sc_bus_space = BWI_BUS_SPACE_32BIT;
|
|
DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_ATTACH, "%s\n",
|
|
"32bit bus space");
|
|
} else {
|
|
/* 30bit address */
|
|
sc->sc_bus_space = BWI_BUS_SPACE_30BIT;
|
|
DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_ATTACH, "%s\n",
|
|
"30bit bus space");
|
|
}
|
|
}
|
|
|
|
if (old_bus_space != 0 && old_bus_space != sc->sc_bus_space) {
|
|
device_printf(sc->sc_dev, "MACs bus space mismatch!\n");
|
|
return ENXIO;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
bwi_mac_updateslot(struct bwi_mac *mac, int shslot)
|
|
{
|
|
uint16_t slot_time;
|
|
|
|
if (mac->mac_phy.phy_mode == IEEE80211_MODE_11B)
|
|
return;
|
|
|
|
if (shslot)
|
|
slot_time = IEEE80211_DUR_SHSLOT;
|
|
else
|
|
slot_time = IEEE80211_DUR_SLOT;
|
|
|
|
CSR_WRITE_2(mac->mac_sc, BWI_MAC_SLOTTIME,
|
|
slot_time + BWI_MAC_SLOTTIME_ADJUST);
|
|
MOBJ_WRITE_2(mac, BWI_COMM_MOBJ, BWI_COMM_MOBJ_SLOTTIME, slot_time);
|
|
}
|
|
|
|
int
|
|
bwi_mac_attach(struct bwi_softc *sc, int id, uint8_t rev)
|
|
{
|
|
struct bwi_mac *mac;
|
|
int i;
|
|
|
|
KASSERT(sc->sc_nmac <= BWI_MAC_MAX && sc->sc_nmac >= 0,
|
|
("sc_nmac %d", sc->sc_nmac));
|
|
|
|
if (sc->sc_nmac == BWI_MAC_MAX) {
|
|
device_printf(sc->sc_dev, "too many MACs\n");
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* More than one MAC is only supported by BCM4309
|
|
*/
|
|
if (sc->sc_nmac != 0 &&
|
|
sc->sc_pci_did != PCI_PRODUCT_BROADCOM_BCM4309) {
|
|
DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_ATTACH, "%s\n",
|
|
"ignore second MAC");
|
|
return 0;
|
|
}
|
|
|
|
mac = &sc->sc_mac[sc->sc_nmac];
|
|
|
|
/* XXX will this happen? */
|
|
if (BWI_REGWIN_EXIST(&mac->mac_regwin)) {
|
|
device_printf(sc->sc_dev, "%dth MAC already attached\n",
|
|
sc->sc_nmac);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Test whether the revision of this MAC is supported
|
|
*/
|
|
#define N(arr) (int)(sizeof(arr) / sizeof(arr[0]))
|
|
for (i = 0; i < N(bwi_sup_macrev); ++i) {
|
|
if (bwi_sup_macrev[i] == rev)
|
|
break;
|
|
}
|
|
if (i == N(bwi_sup_macrev)) {
|
|
device_printf(sc->sc_dev, "MAC rev %u is "
|
|
"not supported\n", rev);
|
|
return ENXIO;
|
|
}
|
|
#undef N
|
|
|
|
BWI_CREATE_MAC(mac, sc, id, rev);
|
|
sc->sc_nmac++;
|
|
|
|
if (mac->mac_rev < 5) {
|
|
mac->mac_flags |= BWI_MAC_F_HAS_TXSTATS;
|
|
DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_ATTACH, "%s\n",
|
|
"has TX stats");
|
|
} else {
|
|
mac->mac_flags |= BWI_MAC_F_PHYE_RESET;
|
|
}
|
|
|
|
device_printf(sc->sc_dev, "MAC: rev %u\n", rev);
|
|
return 0;
|
|
}
|
|
|
|
static __inline void
|
|
bwi_mac_balance_atten(int *bbp_atten0, int *rf_atten0)
|
|
{
|
|
int bbp_atten, rf_atten, rf_atten_lim = -1;
|
|
|
|
bbp_atten = *bbp_atten0;
|
|
rf_atten = *rf_atten0;
|
|
|
|
/*
|
|
* RF attenuation affects TX power BWI_RF_ATTEN_FACTOR times
|
|
* as much as BBP attenuation, so we try our best to keep RF
|
|
* attenuation within range. BBP attenuation will be clamped
|
|
* later if it is out of range during balancing.
|
|
*
|
|
* BWI_RF_ATTEN_MAX0 is used as RF attenuation upper limit.
|
|
*/
|
|
|
|
/*
|
|
* Use BBP attenuation to balance RF attenuation
|
|
*/
|
|
if (rf_atten < 0)
|
|
rf_atten_lim = 0;
|
|
else if (rf_atten > BWI_RF_ATTEN_MAX0)
|
|
rf_atten_lim = BWI_RF_ATTEN_MAX0;
|
|
|
|
if (rf_atten_lim >= 0) {
|
|
bbp_atten += (BWI_RF_ATTEN_FACTOR * (rf_atten - rf_atten_lim));
|
|
rf_atten = rf_atten_lim;
|
|
}
|
|
|
|
/*
|
|
* If possible, use RF attenuation to balance BBP attenuation
|
|
* NOTE: RF attenuation is still kept within range.
|
|
*/
|
|
while (rf_atten < BWI_RF_ATTEN_MAX0 && bbp_atten > BWI_BBP_ATTEN_MAX) {
|
|
bbp_atten -= BWI_RF_ATTEN_FACTOR;
|
|
++rf_atten;
|
|
}
|
|
while (rf_atten > 0 && bbp_atten < 0) {
|
|
bbp_atten += BWI_RF_ATTEN_FACTOR;
|
|
--rf_atten;
|
|
}
|
|
|
|
/* RF attenuation MUST be within range */
|
|
KASSERT(rf_atten >= 0 && rf_atten <= BWI_RF_ATTEN_MAX0,
|
|
("rf_atten %d", rf_atten));
|
|
|
|
/*
|
|
* Clamp BBP attenuation
|
|
*/
|
|
if (bbp_atten < 0)
|
|
bbp_atten = 0;
|
|
else if (bbp_atten > BWI_BBP_ATTEN_MAX)
|
|
bbp_atten = BWI_BBP_ATTEN_MAX;
|
|
|
|
*rf_atten0 = rf_atten;
|
|
*bbp_atten0 = bbp_atten;
|
|
}
|
|
|
|
static void
|
|
bwi_mac_adjust_tpctl(struct bwi_mac *mac, int rf_atten_adj, int bbp_atten_adj)
|
|
{
|
|
struct bwi_softc *sc = mac->mac_sc;
|
|
struct bwi_rf *rf = &mac->mac_rf;
|
|
struct bwi_tpctl tpctl;
|
|
int bbp_atten, rf_atten, tp_ctrl1;
|
|
|
|
bcopy(&mac->mac_tpctl, &tpctl, sizeof(tpctl));
|
|
|
|
/* NOTE: Use signed value to do calulation */
|
|
bbp_atten = tpctl.bbp_atten;
|
|
rf_atten = tpctl.rf_atten;
|
|
tp_ctrl1 = tpctl.tp_ctrl1;
|
|
|
|
bbp_atten += bbp_atten_adj;
|
|
rf_atten += rf_atten_adj;
|
|
|
|
bwi_mac_balance_atten(&bbp_atten, &rf_atten);
|
|
|
|
if (rf->rf_type == BWI_RF_T_BCM2050 && rf->rf_rev == 2) {
|
|
if (rf_atten <= 1) {
|
|
if (tp_ctrl1 == 0) {
|
|
tp_ctrl1 = 3;
|
|
bbp_atten += 2;
|
|
rf_atten += 2;
|
|
} else if (sc->sc_card_flags & BWI_CARD_F_PA_GPIO9) {
|
|
bbp_atten +=
|
|
(BWI_RF_ATTEN_FACTOR * (rf_atten - 2));
|
|
rf_atten = 2;
|
|
}
|
|
} else if (rf_atten > 4 && tp_ctrl1 != 0) {
|
|
tp_ctrl1 = 0;
|
|
if (bbp_atten < 3) {
|
|
bbp_atten += 2;
|
|
rf_atten -= 3;
|
|
} else {
|
|
bbp_atten -= 2;
|
|
rf_atten -= 2;
|
|
}
|
|
}
|
|
bwi_mac_balance_atten(&bbp_atten, &rf_atten);
|
|
}
|
|
|
|
tpctl.bbp_atten = bbp_atten;
|
|
tpctl.rf_atten = rf_atten;
|
|
tpctl.tp_ctrl1 = tp_ctrl1;
|
|
|
|
bwi_mac_lock(mac);
|
|
bwi_mac_set_tpctl_11bg(mac, &tpctl);
|
|
bwi_mac_unlock(mac);
|
|
}
|
|
|
|
/*
|
|
* http://bcm-specs.sipsolutions.net/RecalculateTransmissionPower
|
|
*/
|
|
void
|
|
bwi_mac_calibrate_txpower(struct bwi_mac *mac, enum bwi_txpwrcb_type type)
|
|
{
|
|
struct bwi_softc *sc = mac->mac_sc;
|
|
struct bwi_rf *rf = &mac->mac_rf;
|
|
int8_t tssi[4], tssi_avg, cur_txpwr;
|
|
int error, i, ofdm_tssi;
|
|
int txpwr_diff, rf_atten_adj, bbp_atten_adj;
|
|
|
|
if (!sc->sc_txpwr_calib)
|
|
return;
|
|
|
|
if (mac->mac_flags & BWI_MAC_F_TPCTL_ERROR) {
|
|
DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_TXPOWER, "%s\n",
|
|
"tpctl error happened, can't set txpower");
|
|
return;
|
|
}
|
|
|
|
if (BWI_IS_BRCM_BU4306(sc)) {
|
|
DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_TXPOWER, "%s\n",
|
|
"BU4306, can't set txpower");
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Save latest TSSI and reset the related memory objects
|
|
*/
|
|
ofdm_tssi = 0;
|
|
error = bwi_rf_get_latest_tssi(mac, tssi, BWI_COMM_MOBJ_TSSI_DS);
|
|
if (error) {
|
|
DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_TXPOWER, "%s\n",
|
|
"no DS tssi");
|
|
|
|
if (mac->mac_phy.phy_mode == IEEE80211_MODE_11B) {
|
|
if (type == BWI_TXPWR_FORCE) {
|
|
rf_atten_adj = 0;
|
|
bbp_atten_adj = 1;
|
|
goto calib;
|
|
} else {
|
|
return;
|
|
}
|
|
}
|
|
|
|
error = bwi_rf_get_latest_tssi(mac, tssi,
|
|
BWI_COMM_MOBJ_TSSI_OFDM);
|
|
if (error) {
|
|
DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_TXPOWER, "%s\n",
|
|
"no OFDM tssi");
|
|
if (type == BWI_TXPWR_FORCE) {
|
|
rf_atten_adj = 0;
|
|
bbp_atten_adj = 1;
|
|
goto calib;
|
|
} else {
|
|
return;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < 4; ++i) {
|
|
tssi[i] += 0x20;
|
|
tssi[i] &= 0x3f;
|
|
}
|
|
ofdm_tssi = 1;
|
|
}
|
|
bwi_rf_clear_tssi(mac);
|
|
|
|
DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_TXPOWER,
|
|
"tssi0 %d, tssi1 %d, tssi2 %d, tssi3 %d\n",
|
|
tssi[0], tssi[1], tssi[2], tssi[3]);
|
|
|
|
/*
|
|
* Calculate RF/BBP attenuation adjustment based on
|
|
* the difference between desired TX power and sampled
|
|
* TX power.
|
|
*/
|
|
/* +8 == "each incremented by 1/2" */
|
|
tssi_avg = (tssi[0] + tssi[1] + tssi[2] + tssi[3] + 8) / 4;
|
|
if (ofdm_tssi && (HFLAGS_READ(mac) & BWI_HFLAG_PWR_BOOST_DS))
|
|
tssi_avg -= 13;
|
|
|
|
DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_TXPOWER, "tssi avg %d\n", tssi_avg);
|
|
|
|
error = bwi_rf_tssi2dbm(mac, tssi_avg, &cur_txpwr);
|
|
if (error)
|
|
return;
|
|
DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_TXPOWER, "current txpower %d\n",
|
|
cur_txpwr);
|
|
|
|
txpwr_diff = rf->rf_txpower_max - cur_txpwr; /* XXX ni_txpower */
|
|
|
|
rf_atten_adj = -howmany(txpwr_diff, 8);
|
|
if (type == BWI_TXPWR_INIT) {
|
|
/*
|
|
* Move toward EEPROM max TX power as fast as we can
|
|
*/
|
|
bbp_atten_adj = -txpwr_diff;
|
|
} else {
|
|
bbp_atten_adj = -(txpwr_diff / 2);
|
|
}
|
|
bbp_atten_adj -= (BWI_RF_ATTEN_FACTOR * rf_atten_adj);
|
|
|
|
if (rf_atten_adj == 0 && bbp_atten_adj == 0) {
|
|
DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_TXPOWER, "%s\n",
|
|
"no need to adjust RF/BBP attenuation");
|
|
/* TODO: LO */
|
|
return;
|
|
}
|
|
|
|
calib:
|
|
DPRINTF(sc, BWI_DBG_MAC | BWI_DBG_TXPOWER,
|
|
"rf atten adjust %d, bbp atten adjust %d\n",
|
|
rf_atten_adj, bbp_atten_adj);
|
|
bwi_mac_adjust_tpctl(mac, rf_atten_adj, bbp_atten_adj);
|
|
/* TODO: LO */
|
|
}
|
|
|
|
static void
|
|
bwi_mac_lock(struct bwi_mac *mac)
|
|
{
|
|
struct bwi_softc *sc = mac->mac_sc;
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
|
|
KASSERT((mac->mac_flags & BWI_MAC_F_LOCKED) == 0,
|
|
("mac_flags 0x%x", mac->mac_flags));
|
|
|
|
if (mac->mac_rev < 3)
|
|
bwi_mac_stop(mac);
|
|
else if (ic->ic_opmode != IEEE80211_M_HOSTAP)
|
|
bwi_mac_config_ps(mac);
|
|
|
|
CSR_SETBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_RFLOCK);
|
|
|
|
/* Flush pending bus write */
|
|
CSR_READ_4(sc, BWI_MAC_STATUS);
|
|
DELAY(10);
|
|
|
|
mac->mac_flags |= BWI_MAC_F_LOCKED;
|
|
}
|
|
|
|
static void
|
|
bwi_mac_unlock(struct bwi_mac *mac)
|
|
{
|
|
struct bwi_softc *sc = mac->mac_sc;
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ieee80211com *ic = ifp->if_l2com;
|
|
|
|
KASSERT(mac->mac_flags & BWI_MAC_F_LOCKED,
|
|
("mac_flags 0x%x", mac->mac_flags));
|
|
|
|
CSR_READ_2(sc, BWI_PHYINFO); /* dummy read */
|
|
|
|
CSR_CLRBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_RFLOCK);
|
|
|
|
if (mac->mac_rev < 3)
|
|
bwi_mac_start(mac);
|
|
else if (ic->ic_opmode != IEEE80211_M_HOSTAP)
|
|
bwi_mac_config_ps(mac);
|
|
|
|
mac->mac_flags &= ~BWI_MAC_F_LOCKED;
|
|
}
|
|
|
|
void
|
|
bwi_mac_set_promisc(struct bwi_mac *mac, int promisc)
|
|
{
|
|
struct bwi_softc *sc = mac->mac_sc;
|
|
|
|
if (mac->mac_rev < 5) /* Promisc is always on */
|
|
return;
|
|
|
|
if (promisc)
|
|
CSR_SETBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_PROMISC);
|
|
else
|
|
CSR_CLRBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_PROMISC);
|
|
}
|