182 lines
5.2 KiB
C
182 lines
5.2 KiB
C
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/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2016 Landon Fuller <landonf@FreeBSD.org>
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* Copyright (c) 2017 The FreeBSD Foundation
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* All rights reserved.
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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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* 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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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
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* redistribution must be conditioned upon including a substantially
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* similar Disclaimer requirement for further binary redistribution.
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*
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* NO WARRANTY
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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 NONINFRINGEMENT, MERCHANTIBILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGES.
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*
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* $FreeBSD$
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h>
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#include <sys/socket.h>
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#include <net/ethernet.h>
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#include <net/if.h>
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#include <net/if_var.h>
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#include <net/if_arp.h>
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#include <net/if_dl.h>
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#include <net/if_llc.h>
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#include <net/if_media.h>
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#include <net/if_types.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_regdomain.h>
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#include <net80211/ieee80211_phy.h>
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#include <net80211/ieee80211_ratectl.h>
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#include <dev/bhnd/bhnd.h>
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#include <dev/bwn/if_bwnvar.h>
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#include "if_bwn_phy_n_sprom.h"
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#include "bhnd_nvram_map.h"
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/* Core power NVRAM variables, indexed by D11 core unit number */
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static const struct bwn_nphy_power_vars {
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const char *itt2ga;
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const char *itt5ga;
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const char *maxp2ga;
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const char *pa2ga;
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const char *pa5ga;
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} bwn_nphy_power_vars[BWN_NPHY_NUM_CORE_PWR] = {
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#define BHND_POWER_NVAR(_idx) \
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{ BHND_NVAR_ITT2GA ## _idx, BHND_NVAR_ITT5GA ## _idx, \
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BHND_NVAR_MAXP2GA ## _idx, BHND_NVAR_PA2GA ## _idx, \
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BHND_NVAR_PA5GA ## _idx }
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BHND_POWER_NVAR(0),
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BHND_POWER_NVAR(1),
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BHND_POWER_NVAR(2),
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BHND_POWER_NVAR(3)
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#undef BHND_POWER_NVAR
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};
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static int
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bwn_nphy_get_core_power_info_r11(struct bwn_softc *sc,
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const struct bwn_nphy_power_vars *v, struct bwn_phy_n_core_pwr_info *c)
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{
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int16_t pa5ga[12];
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int error;
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/* BHND_NVAR_PA2GA[core] */
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error = bhnd_nvram_getvar_array(sc->sc_dev, v->pa2ga, c->pa_2g,
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sizeof(c->pa_2g), BHND_NVRAM_TYPE_INT16);
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if (error)
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return (error);
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/*
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* BHND_NVAR_PA5GA
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*
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* The NVRAM variable is defined as a single pa5ga[12] array; we have
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* to split this into pa_5gl[4], pa_5g[4], and pa_5gh[4] for use
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* by bwn(4);
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*/
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_Static_assert(nitems(pa5ga) == nitems(c->pa_5g) + nitems(c->pa_5gh) +
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nitems(c->pa_5gl), "cannot split pa5ga into pa_5gl/pa_5g/pa_5gh");
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error = bhnd_nvram_getvar_array(sc->sc_dev, v->pa5ga, pa5ga,
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sizeof(pa5ga), BHND_NVRAM_TYPE_INT16);
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if (error)
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return (error);
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memcpy(c->pa_5gl, &pa5ga[0], sizeof(c->pa_5gl));
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memcpy(c->pa_5g, &pa5ga[4], sizeof(c->pa_5g));
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memcpy(c->pa_5gh, &pa5ga[8], sizeof(c->pa_5gh));
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return (0);
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}
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static int
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bwn_nphy_get_core_power_info_r4_r10(struct bwn_softc *sc,
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const struct bwn_nphy_power_vars *v, struct bwn_phy_n_core_pwr_info *c)
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{
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int error;
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/* BHND_NVAR_ITT2GA[core] */
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error = bhnd_nvram_getvar_uint8(sc->sc_dev, v->itt2ga, &c->itssi_2g);
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if (error)
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return (error);
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/* BHND_NVAR_ITT5GA[core] */
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error = bhnd_nvram_getvar_uint8(sc->sc_dev, v->itt5ga, &c->itssi_5g);
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if (error)
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return (error);
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return (0);
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}
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/*
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* siba_sprom_get_core_power_info()
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*
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* Referenced by:
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* bwn_nphy_tx_power_ctl_setup()
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* bwn_ppr_load_max_from_sprom()
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*/
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int
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bwn_nphy_get_core_power_info(struct bwn_mac *mac, int core,
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struct bwn_phy_n_core_pwr_info *c)
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{
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struct bwn_softc *sc;
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const struct bwn_nphy_power_vars *v;
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uint8_t sromrev;
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int error;
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sc = mac->mac_sc;
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if (core < 0 || core >= nitems(bwn_nphy_power_vars))
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return (EINVAL);
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sromrev = sc->sc_board_info.board_srom_rev;
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if (sromrev < 4)
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return (ENXIO);
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v = &bwn_nphy_power_vars[core];
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/* Any power variables not found in NVRAM (or returning a
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* shorter array for a particular NVRAM revision) should be zero
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* initialized */
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memset(c, 0x0, sizeof(*c));
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/* Populate SPROM revision-independent values */
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error = bhnd_nvram_getvar_uint8(sc->sc_dev, v->maxp2ga, &c->maxpwr_2g);
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if (error)
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return (error);
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/* Populate SPROM revision-specific values */
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if (sromrev >= 4 && sromrev <= 10)
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return (bwn_nphy_get_core_power_info_r4_r10(sc, v, c));
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else
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return (bwn_nphy_get_core_power_info_r11(sc, v, c));
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}
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