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/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2016 Landon Fuller <landonf@FreeBSD.org>
* Copyright (c) 2017 The FreeBSD Foundation
* 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,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
* redistribution must be conditioned upon including a substantially
* similar Disclaimer requirement for further binary redistribution.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
*
* $FreeBSD$
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <net/ethernet.h>
#include <net/if.h>
#include <net/if_var.h>
#include <net/if_arp.h>
#include <net/if_dl.h>
#include <net/if_llc.h>
#include <net/if_media.h>
#include <net/if_types.h>
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_radiotap.h>
#include <net80211/ieee80211_regdomain.h>
#include <net80211/ieee80211_phy.h>
#include <net80211/ieee80211_ratectl.h>
#include <dev/bhnd/bhnd.h>
#include <dev/bwn/if_bwnvar.h>
#include "if_bwn_phy_n_sprom.h"
#include "bhnd_nvram_map.h"
/* Core power NVRAM variables, indexed by D11 core unit number */
static const struct bwn_nphy_power_vars {
const char *itt2ga;
const char *itt5ga;
const char *maxp2ga;
const char *pa2ga;
const char *pa5ga;
} bwn_nphy_power_vars[BWN_NPHY_NUM_CORE_PWR] = {
#define BHND_POWER_NVAR(_idx) \
{ BHND_NVAR_ITT2GA ## _idx, BHND_NVAR_ITT5GA ## _idx, \
BHND_NVAR_MAXP2GA ## _idx, BHND_NVAR_PA2GA ## _idx, \
BHND_NVAR_PA5GA ## _idx }
BHND_POWER_NVAR(0),
BHND_POWER_NVAR(1),
BHND_POWER_NVAR(2),
BHND_POWER_NVAR(3)
#undef BHND_POWER_NVAR
};
static int
bwn_nphy_get_core_power_info_r11(struct bwn_softc *sc,
const struct bwn_nphy_power_vars *v, struct bwn_phy_n_core_pwr_info *c)
{
int16_t pa5ga[12];
int error;
/* BHND_NVAR_PA2GA[core] */
error = bhnd_nvram_getvar_array(sc->sc_dev, v->pa2ga, c->pa_2g,
sizeof(c->pa_2g), BHND_NVRAM_TYPE_INT16);
if (error)
return (error);
/*
* BHND_NVAR_PA5GA
*
* The NVRAM variable is defined as a single pa5ga[12] array; we have
* to split this into pa_5gl[4], pa_5g[4], and pa_5gh[4] for use
* by bwn(4);
*/
_Static_assert(nitems(pa5ga) == nitems(c->pa_5g) + nitems(c->pa_5gh) +
nitems(c->pa_5gl), "cannot split pa5ga into pa_5gl/pa_5g/pa_5gh");
error = bhnd_nvram_getvar_array(sc->sc_dev, v->pa5ga, pa5ga,
sizeof(pa5ga), BHND_NVRAM_TYPE_INT16);
if (error)
return (error);
memcpy(c->pa_5gl, &pa5ga[0], sizeof(c->pa_5gl));
memcpy(c->pa_5g, &pa5ga[4], sizeof(c->pa_5g));
memcpy(c->pa_5gh, &pa5ga[8], sizeof(c->pa_5gh));
return (0);
}
static int
bwn_nphy_get_core_power_info_r4_r10(struct bwn_softc *sc,
const struct bwn_nphy_power_vars *v, struct bwn_phy_n_core_pwr_info *c)
{
int error;
/* BHND_NVAR_ITT2GA[core] */
error = bhnd_nvram_getvar_uint8(sc->sc_dev, v->itt2ga, &c->itssi_2g);
if (error)
return (error);
/* BHND_NVAR_ITT5GA[core] */
error = bhnd_nvram_getvar_uint8(sc->sc_dev, v->itt5ga, &c->itssi_5g);
if (error)
return (error);
return (0);
}
/*
* siba_sprom_get_core_power_info()
*
* Referenced by:
* bwn_nphy_tx_power_ctl_setup()
* bwn_ppr_load_max_from_sprom()
*/
int
bwn_nphy_get_core_power_info(struct bwn_mac *mac, int core,
struct bwn_phy_n_core_pwr_info *c)
{
struct bwn_softc *sc;
const struct bwn_nphy_power_vars *v;
uint8_t sromrev;
int error;
sc = mac->mac_sc;
if (core < 0 || core >= nitems(bwn_nphy_power_vars))
return (EINVAL);
sromrev = sc->sc_board_info.board_srom_rev;
if (sromrev < 4)
return (ENXIO);
v = &bwn_nphy_power_vars[core];
/* Any power variables not found in NVRAM (or returning a
* shorter array for a particular NVRAM revision) should be zero
* initialized */
memset(c, 0x0, sizeof(*c));
/* Populate SPROM revision-independent values */
error = bhnd_nvram_getvar_uint8(sc->sc_dev, v->maxp2ga, &c->maxpwr_2g);
if (error)
return (error);
/* Populate SPROM revision-specific values */
if (sromrev >= 4 && sromrev <= 10)
return (bwn_nphy_get_core_power_info_r4_r10(sc, v, c));
else
return (bwn_nphy_get_core_power_info_r11(sc, v, c));
}
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