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138173d4e8
linux-next/arch/mips/bcm47xx/sprom.c
Rafał Miłecki 138173d4e8 MIPS: BCM47xx: Move NVRAM header to the include/linux/. 
There are two reasons for having this header in the common place:
1) Simplifying drivers that read NVRAM entries. We will be able to
   safely call bcm47xx_nvram_* functions without #ifdef-s.
2) Getting NVRAM driver out of MIPS arch code. This is needed to support
   BCM5301X arch which also requires this NVRAM driver. Patch for that
   will follow once we get is reviewed.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: linux-soc@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/8619/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01 17:22:00 +02:00

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/*
* Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
* Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
* Copyright (C) 2006 Michael Buesch <m@bues.ch>
* Copyright (C) 2010 Waldemar Brodkorb <wbx@openadk.org>
* Copyright (C) 2010-2012 Hauke Mehrtens <hauke@hauke-m.de>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* THIS SOFTWARE IS PROVIDED ``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 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.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <bcm47xx.h>
#include <linux/if_ether.h>
#include <linux/etherdevice.h>
static void create_key(const char *prefix, const char *postfix,
const char *name, char *buf, int len)
{
if (prefix && postfix)
snprintf(buf, len, "%s%s%s", prefix, name, postfix);
else if (prefix)
snprintf(buf, len, "%s%s", prefix, name);
else if (postfix)
snprintf(buf, len, "%s%s", name, postfix);
else
snprintf(buf, len, "%s", name);
}
static int get_nvram_var(const char *prefix, const char *postfix,
const char *name, char *buf, int len, bool fallback)
{
char key[40];
int err;
create_key(prefix, postfix, name, key, sizeof(key));
err = bcm47xx_nvram_getenv(key, buf, len);
if (fallback && err == -ENOENT && prefix) {
create_key(NULL, postfix, name, key, sizeof(key));
err = bcm47xx_nvram_getenv(key, buf, len);
}
return err;
}
#define NVRAM_READ_VAL(type) \
static void nvram_read_ ## type (const char *prefix, \
const char *postfix, const char *name, \
type *val, type allset, bool fallback) \
{ \
char buf[100]; \
int err; \
type var; \
\
err = get_nvram_var(prefix, postfix, name, buf, sizeof(buf), \
fallback); \
if (err < 0) \
return; \
err = kstrto ## type(strim(buf), 0, &var); \
if (err) { \
pr_warn("can not parse nvram name %s%s%s with value %s got %i\n", \
prefix, name, postfix, buf, err); \
return; \
} \
if (allset && var == allset) \
return; \
*val = var; \
}
NVRAM_READ_VAL(u8)
NVRAM_READ_VAL(s8)
NVRAM_READ_VAL(u16)
NVRAM_READ_VAL(u32)
#undef NVRAM_READ_VAL
static void nvram_read_u32_2(const char *prefix, const char *name,
u16 *val_lo, u16 *val_hi, bool fallback)
{
char buf[100];
int err;
u32 val;
err = get_nvram_var(prefix, NULL, name, buf, sizeof(buf), fallback);
if (err < 0)
return;
err = kstrtou32(strim(buf), 0, &val);
if (err) {
pr_warn("can not parse nvram name %s%s with value %s got %i\n",
prefix, name, buf, err);
return;
}
*val_lo = (val & 0x0000FFFFU);
*val_hi = (val & 0xFFFF0000U) >> 16;
}
static void nvram_read_leddc(const char *prefix, const char *name,
u8 *leddc_on_time, u8 *leddc_off_time,
bool fallback)
{
char buf[100];
int err;
u32 val;
err = get_nvram_var(prefix, NULL, name, buf, sizeof(buf), fallback);
if (err < 0)
return;
err = kstrtou32(strim(buf), 0, &val);
if (err) {
pr_warn("can not parse nvram name %s%s with value %s got %i\n",
prefix, name, buf, err);
return;
}
if (val == 0xffff || val == 0xffffffff)
return;
*leddc_on_time = val & 0xff;
*leddc_off_time = (val >> 16) & 0xff;
}
static void bcm47xx_nvram_parse_macaddr(char *buf, u8 macaddr[6])
{
if (strchr(buf, ':'))
sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", &macaddr[0],
&macaddr[1], &macaddr[2], &macaddr[3], &macaddr[4],
&macaddr[5]);
else if (strchr(buf, '-'))
sscanf(buf, "%hhx-%hhx-%hhx-%hhx-%hhx-%hhx", &macaddr[0],
&macaddr[1], &macaddr[2], &macaddr[3], &macaddr[4],
&macaddr[5]);
else
pr_warn("Can not parse mac address: %s\n", buf);
}
static void nvram_read_macaddr(const char *prefix, const char *name,
u8 val[6], bool fallback)
{
char buf[100];
int err;
err = get_nvram_var(prefix, NULL, name, buf, sizeof(buf), fallback);
if (err < 0)
return;
bcm47xx_nvram_parse_macaddr(buf, val);
}
static void nvram_read_alpha2(const char *prefix, const char *name,
char val[2], bool fallback)
{
char buf[10];
int err;
err = get_nvram_var(prefix, NULL, name, buf, sizeof(buf), fallback);
if (err < 0)
return;
if (buf[0] == '0')
return;
if (strlen(buf) > 2) {
pr_warn("alpha2 is too long %s\n", buf);
return;
}
memcpy(val, buf, 2);
}
static void bcm47xx_fill_sprom_r1234589(struct ssb_sprom *sprom,
const char *prefix, bool fallback)
{
nvram_read_u16(prefix, NULL, "devid", &sprom->dev_id, 0, fallback);
nvram_read_u8(prefix, NULL, "ledbh0", &sprom->gpio0, 0xff, fallback);
nvram_read_u8(prefix, NULL, "ledbh1", &sprom->gpio1, 0xff, fallback);
nvram_read_u8(prefix, NULL, "ledbh2", &sprom->gpio2, 0xff, fallback);
nvram_read_u8(prefix, NULL, "ledbh3", &sprom->gpio3, 0xff, fallback);
nvram_read_u8(prefix, NULL, "aa2g", &sprom->ant_available_bg, 0,
fallback);
nvram_read_u8(prefix, NULL, "aa5g", &sprom->ant_available_a, 0,
fallback);
nvram_read_s8(prefix, NULL, "ag0", &sprom->antenna_gain.a0, 0,
fallback);
nvram_read_s8(prefix, NULL, "ag1", &sprom->antenna_gain.a1, 0,
fallback);
nvram_read_alpha2(prefix, "ccode", sprom->alpha2, fallback);
}
static void bcm47xx_fill_sprom_r12389(struct ssb_sprom *sprom,
const char *prefix, bool fallback)
{
nvram_read_u16(prefix, NULL, "pa0b0", &sprom->pa0b0, 0, fallback);
nvram_read_u16(prefix, NULL, "pa0b1", &sprom->pa0b1, 0, fallback);
nvram_read_u16(prefix, NULL, "pa0b2", &sprom->pa0b2, 0, fallback);
nvram_read_u8(prefix, NULL, "pa0itssit", &sprom->itssi_bg, 0, fallback);
nvram_read_u8(prefix, NULL, "pa0maxpwr", &sprom->maxpwr_bg, 0,
fallback);
nvram_read_u16(prefix, NULL, "pa1b0", &sprom->pa1b0, 0, fallback);
nvram_read_u16(prefix, NULL, "pa1b1", &sprom->pa1b1, 0, fallback);
nvram_read_u16(prefix, NULL, "pa1b2", &sprom->pa1b2, 0, fallback);
nvram_read_u8(prefix, NULL, "pa1itssit", &sprom->itssi_a, 0, fallback);
nvram_read_u8(prefix, NULL, "pa1maxpwr", &sprom->maxpwr_a, 0, fallback);
}
static void bcm47xx_fill_sprom_r1(struct ssb_sprom *sprom, const char *prefix,
bool fallback)
{
nvram_read_u16(prefix, NULL, "boardflags", &sprom->boardflags_lo, 0,
fallback);
nvram_read_u8(prefix, NULL, "cc", &sprom->country_code, 0, fallback);
}
static void bcm47xx_fill_sprom_r2389(struct ssb_sprom *sprom,
const char *prefix, bool fallback)
{
nvram_read_u8(prefix, NULL, "opo", &sprom->opo, 0, fallback);
nvram_read_u16(prefix, NULL, "pa1lob0", &sprom->pa1lob0, 0, fallback);
nvram_read_u16(prefix, NULL, "pa1lob1", &sprom->pa1lob1, 0, fallback);
nvram_read_u16(prefix, NULL, "pa1lob2", &sprom->pa1lob2, 0, fallback);
nvram_read_u16(prefix, NULL, "pa1hib0", &sprom->pa1hib0, 0, fallback);
nvram_read_u16(prefix, NULL, "pa1hib1", &sprom->pa1hib1, 0, fallback);
nvram_read_u16(prefix, NULL, "pa1hib2", &sprom->pa1hib2, 0, fallback);
nvram_read_u8(prefix, NULL, "pa1lomaxpwr", &sprom->maxpwr_al, 0,
fallback);
nvram_read_u8(prefix, NULL, "pa1himaxpwr", &sprom->maxpwr_ah, 0,
fallback);
}
static void bcm47xx_fill_sprom_r389(struct ssb_sprom *sprom, const char *prefix,
bool fallback)
{
nvram_read_u8(prefix, NULL, "bxa2g", &sprom->bxa2g, 0, fallback);
nvram_read_u8(prefix, NULL, "rssisav2g", &sprom->rssisav2g, 0,
fallback);
nvram_read_u8(prefix, NULL, "rssismc2g", &sprom->rssismc2g, 0,
fallback);
nvram_read_u8(prefix, NULL, "rssismf2g", &sprom->rssismf2g, 0,
fallback);
nvram_read_u8(prefix, NULL, "bxa5g", &sprom->bxa5g, 0, fallback);
nvram_read_u8(prefix, NULL, "rssisav5g", &sprom->rssisav5g, 0,
fallback);
nvram_read_u8(prefix, NULL, "rssismc5g", &sprom->rssismc5g, 0,
fallback);
nvram_read_u8(prefix, NULL, "rssismf5g", &sprom->rssismf5g, 0,
fallback);
nvram_read_u8(prefix, NULL, "tri2g", &sprom->tri2g, 0, fallback);
nvram_read_u8(prefix, NULL, "tri5g", &sprom->tri5g, 0, fallback);
nvram_read_u8(prefix, NULL, "tri5gl", &sprom->tri5gl, 0, fallback);
nvram_read_u8(prefix, NULL, "tri5gh", &sprom->tri5gh, 0, fallback);
nvram_read_s8(prefix, NULL, "rxpo2g", &sprom->rxpo2g, 0, fallback);
nvram_read_s8(prefix, NULL, "rxpo5g", &sprom->rxpo5g, 0, fallback);
}
static void bcm47xx_fill_sprom_r3(struct ssb_sprom *sprom, const char *prefix,
bool fallback)
{
nvram_read_u8(prefix, NULL, "regrev", &sprom->regrev, 0, fallback);
nvram_read_leddc(prefix, "leddc", &sprom->leddc_on_time,
&sprom->leddc_off_time, fallback);
}
static void bcm47xx_fill_sprom_r4589(struct ssb_sprom *sprom,
const char *prefix, bool fallback)
{
nvram_read_u8(prefix, NULL, "regrev", &sprom->regrev, 0, fallback);
nvram_read_s8(prefix, NULL, "ag2", &sprom->antenna_gain.a2, 0,
fallback);
nvram_read_s8(prefix, NULL, "ag3", &sprom->antenna_gain.a3, 0,
fallback);
nvram_read_u8(prefix, NULL, "txchain", &sprom->txchain, 0xf, fallback);
nvram_read_u8(prefix, NULL, "rxchain", &sprom->rxchain, 0xf, fallback);
nvram_read_u8(prefix, NULL, "antswitch", &sprom->antswitch, 0xff,
fallback);
nvram_read_leddc(prefix, "leddc", &sprom->leddc_on_time,
&sprom->leddc_off_time, fallback);
}
static void bcm47xx_fill_sprom_r458(struct ssb_sprom *sprom, const char *prefix,
bool fallback)
{
nvram_read_u16(prefix, NULL, "cck2gpo", &sprom->cck2gpo, 0, fallback);
nvram_read_u32(prefix, NULL, "ofdm2gpo", &sprom->ofdm2gpo, 0, fallback);
nvram_read_u32(prefix, NULL, "ofdm5gpo", &sprom->ofdm5gpo, 0, fallback);
nvram_read_u32(prefix, NULL, "ofdm5glpo", &sprom->ofdm5glpo, 0,
fallback);
nvram_read_u32(prefix, NULL, "ofdm5ghpo", &sprom->ofdm5ghpo, 0,
fallback);
nvram_read_u16(prefix, NULL, "cddpo", &sprom->cddpo, 0, fallback);
nvram_read_u16(prefix, NULL, "stbcpo", &sprom->stbcpo, 0, fallback);
nvram_read_u16(prefix, NULL, "bw40po", &sprom->bw40po, 0, fallback);
nvram_read_u16(prefix, NULL, "bwduppo", &sprom->bwduppo, 0, fallback);
nvram_read_u16(prefix, NULL, "mcs2gpo0", &sprom->mcs2gpo[0], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs2gpo1", &sprom->mcs2gpo[1], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs2gpo2", &sprom->mcs2gpo[2], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs2gpo3", &sprom->mcs2gpo[3], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs2gpo4", &sprom->mcs2gpo[4], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs2gpo5", &sprom->mcs2gpo[5], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs2gpo6", &sprom->mcs2gpo[6], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs2gpo7", &sprom->mcs2gpo[7], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs5gpo0", &sprom->mcs5gpo[0], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs5gpo1", &sprom->mcs5gpo[1], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs5gpo2", &sprom->mcs5gpo[2], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs5gpo3", &sprom->mcs5gpo[3], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs5gpo4", &sprom->mcs5gpo[4], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs5gpo5", &sprom->mcs5gpo[5], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs5gpo6", &sprom->mcs5gpo[6], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs5gpo7", &sprom->mcs5gpo[7], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs5glpo0", &sprom->mcs5glpo[0], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs5glpo1", &sprom->mcs5glpo[1], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs5glpo2", &sprom->mcs5glpo[2], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs5glpo3", &sprom->mcs5glpo[3], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs5glpo4", &sprom->mcs5glpo[4], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs5glpo5", &sprom->mcs5glpo[5], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs5glpo6", &sprom->mcs5glpo[6], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs5glpo7", &sprom->mcs5glpo[7], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs5ghpo0", &sprom->mcs5ghpo[0], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs5ghpo1", &sprom->mcs5ghpo[1], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs5ghpo2", &sprom->mcs5ghpo[2], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs5ghpo3", &sprom->mcs5ghpo[3], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs5ghpo4", &sprom->mcs5ghpo[4], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs5ghpo5", &sprom->mcs5ghpo[5], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs5ghpo6", &sprom->mcs5ghpo[6], 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs5ghpo7", &sprom->mcs5ghpo[7], 0,
fallback);
}
static void bcm47xx_fill_sprom_r45(struct ssb_sprom *sprom, const char *prefix,
bool fallback)
{
nvram_read_u8(prefix, NULL, "txpid2ga0", &sprom->txpid2g[0], 0,
fallback);
nvram_read_u8(prefix, NULL, "txpid2ga1", &sprom->txpid2g[1], 0,
fallback);
nvram_read_u8(prefix, NULL, "txpid2ga2", &sprom->txpid2g[2], 0,
fallback);
nvram_read_u8(prefix, NULL, "txpid2ga3", &sprom->txpid2g[3], 0,
fallback);
nvram_read_u8(prefix, NULL, "txpid5ga0", &sprom->txpid5g[0], 0,
fallback);
nvram_read_u8(prefix, NULL, "txpid5ga1", &sprom->txpid5g[1], 0,
fallback);
nvram_read_u8(prefix, NULL, "txpid5ga2", &sprom->txpid5g[2], 0,
fallback);
nvram_read_u8(prefix, NULL, "txpid5ga3", &sprom->txpid5g[3], 0,
fallback);
nvram_read_u8(prefix, NULL, "txpid5gla0", &sprom->txpid5gl[0], 0,
fallback);
nvram_read_u8(prefix, NULL, "txpid5gla1", &sprom->txpid5gl[1], 0,
fallback);
nvram_read_u8(prefix, NULL, "txpid5gla2", &sprom->txpid5gl[2], 0,
fallback);
nvram_read_u8(prefix, NULL, "txpid5gla3", &sprom->txpid5gl[3], 0,
fallback);
nvram_read_u8(prefix, NULL, "txpid5gha0", &sprom->txpid5gh[0], 0,
fallback);
nvram_read_u8(prefix, NULL, "txpid5gha1", &sprom->txpid5gh[1], 0,
fallback);
nvram_read_u8(prefix, NULL, "txpid5gha2", &sprom->txpid5gh[2], 0,
fallback);
nvram_read_u8(prefix, NULL, "txpid5gha3", &sprom->txpid5gh[3], 0,
fallback);
}
static void bcm47xx_fill_sprom_r89(struct ssb_sprom *sprom, const char *prefix,
bool fallback)
{
nvram_read_u8(prefix, NULL, "tssipos2g", &sprom->fem.ghz2.tssipos, 0,
fallback);
nvram_read_u8(prefix, NULL, "extpagain2g",
&sprom->fem.ghz2.extpa_gain, 0, fallback);
nvram_read_u8(prefix, NULL, "pdetrange2g",
&sprom->fem.ghz2.pdet_range, 0, fallback);
nvram_read_u8(prefix, NULL, "triso2g", &sprom->fem.ghz2.tr_iso, 0,
fallback);
nvram_read_u8(prefix, NULL, "antswctl2g", &sprom->fem.ghz2.antswlut, 0,
fallback);
nvram_read_u8(prefix, NULL, "tssipos5g", &sprom->fem.ghz5.tssipos, 0,
fallback);
nvram_read_u8(prefix, NULL, "extpagain5g",
&sprom->fem.ghz5.extpa_gain, 0, fallback);
nvram_read_u8(prefix, NULL, "pdetrange5g",
&sprom->fem.ghz5.pdet_range, 0, fallback);
nvram_read_u8(prefix, NULL, "triso5g", &sprom->fem.ghz5.tr_iso, 0,
fallback);
nvram_read_u8(prefix, NULL, "antswctl5g", &sprom->fem.ghz5.antswlut, 0,
fallback);
nvram_read_u8(prefix, NULL, "tempthresh", &sprom->tempthresh, 0,
fallback);
nvram_read_u8(prefix, NULL, "tempoffset", &sprom->tempoffset, 0,
fallback);
nvram_read_u16(prefix, NULL, "rawtempsense", &sprom->rawtempsense, 0,
fallback);
nvram_read_u8(prefix, NULL, "measpower", &sprom->measpower, 0,
fallback);
nvram_read_u8(prefix, NULL, "tempsense_slope",
&sprom->tempsense_slope, 0, fallback);
nvram_read_u8(prefix, NULL, "tempcorrx", &sprom->tempcorrx, 0,
fallback);
nvram_read_u8(prefix, NULL, "tempsense_option",
&sprom->tempsense_option, 0, fallback);
nvram_read_u8(prefix, NULL, "freqoffset_corr",
&sprom->freqoffset_corr, 0, fallback);
nvram_read_u8(prefix, NULL, "iqcal_swp_dis", &sprom->iqcal_swp_dis, 0,
fallback);
nvram_read_u8(prefix, NULL, "hw_iqcal_en", &sprom->hw_iqcal_en, 0,
fallback);
nvram_read_u8(prefix, NULL, "elna2g", &sprom->elna2g, 0, fallback);
nvram_read_u8(prefix, NULL, "elna5g", &sprom->elna5g, 0, fallback);
nvram_read_u8(prefix, NULL, "phycal_tempdelta",
&sprom->phycal_tempdelta, 0, fallback);
nvram_read_u8(prefix, NULL, "temps_period", &sprom->temps_period, 0,
fallback);
nvram_read_u8(prefix, NULL, "temps_hysteresis",
&sprom->temps_hysteresis, 0, fallback);
nvram_read_u8(prefix, NULL, "measpower1", &sprom->measpower1, 0,
fallback);
nvram_read_u8(prefix, NULL, "measpower2", &sprom->measpower2, 0,
fallback);
nvram_read_u8(prefix, NULL, "rxgainerr2ga0",
&sprom->rxgainerr2ga[0], 0, fallback);
nvram_read_u8(prefix, NULL, "rxgainerr2ga1",
&sprom->rxgainerr2ga[1], 0, fallback);
nvram_read_u8(prefix, NULL, "rxgainerr2ga2",
&sprom->rxgainerr2ga[2], 0, fallback);
nvram_read_u8(prefix, NULL, "rxgainerr5gla0",
&sprom->rxgainerr5gla[0], 0, fallback);
nvram_read_u8(prefix, NULL, "rxgainerr5gla1",
&sprom->rxgainerr5gla[1], 0, fallback);
nvram_read_u8(prefix, NULL, "rxgainerr5gla2",
&sprom->rxgainerr5gla[2], 0, fallback);
nvram_read_u8(prefix, NULL, "rxgainerr5gma0",
&sprom->rxgainerr5gma[0], 0, fallback);
nvram_read_u8(prefix, NULL, "rxgainerr5gma1",
&sprom->rxgainerr5gma[1], 0, fallback);
nvram_read_u8(prefix, NULL, "rxgainerr5gma2",
&sprom->rxgainerr5gma[2], 0, fallback);
nvram_read_u8(prefix, NULL, "rxgainerr5gha0",
&sprom->rxgainerr5gha[0], 0, fallback);
nvram_read_u8(prefix, NULL, "rxgainerr5gha1",
&sprom->rxgainerr5gha[1], 0, fallback);
nvram_read_u8(prefix, NULL, "rxgainerr5gha2",
&sprom->rxgainerr5gha[2], 0, fallback);
nvram_read_u8(prefix, NULL, "rxgainerr5gua0",
&sprom->rxgainerr5gua[0], 0, fallback);
nvram_read_u8(prefix, NULL, "rxgainerr5gua1",
&sprom->rxgainerr5gua[1], 0, fallback);
nvram_read_u8(prefix, NULL, "rxgainerr5gua2",
&sprom->rxgainerr5gua[2], 0, fallback);
nvram_read_u8(prefix, NULL, "noiselvl2ga0", &sprom->noiselvl2ga[0], 0,
fallback);
nvram_read_u8(prefix, NULL, "noiselvl2ga1", &sprom->noiselvl2ga[1], 0,
fallback);
nvram_read_u8(prefix, NULL, "noiselvl2ga2", &sprom->noiselvl2ga[2], 0,
fallback);
nvram_read_u8(prefix, NULL, "noiselvl5gla0",
&sprom->noiselvl5gla[0], 0, fallback);
nvram_read_u8(prefix, NULL, "noiselvl5gla1",
&sprom->noiselvl5gla[1], 0, fallback);
nvram_read_u8(prefix, NULL, "noiselvl5gla2",
&sprom->noiselvl5gla[2], 0, fallback);
nvram_read_u8(prefix, NULL, "noiselvl5gma0",
&sprom->noiselvl5gma[0], 0, fallback);
nvram_read_u8(prefix, NULL, "noiselvl5gma1",
&sprom->noiselvl5gma[1], 0, fallback);
nvram_read_u8(prefix, NULL, "noiselvl5gma2",
&sprom->noiselvl5gma[2], 0, fallback);
nvram_read_u8(prefix, NULL, "noiselvl5gha0",
&sprom->noiselvl5gha[0], 0, fallback);
nvram_read_u8(prefix, NULL, "noiselvl5gha1",
&sprom->noiselvl5gha[1], 0, fallback);
nvram_read_u8(prefix, NULL, "noiselvl5gha2",
&sprom->noiselvl5gha[2], 0, fallback);
nvram_read_u8(prefix, NULL, "noiselvl5gua0",
&sprom->noiselvl5gua[0], 0, fallback);
nvram_read_u8(prefix, NULL, "noiselvl5gua1",
&sprom->noiselvl5gua[1], 0, fallback);
nvram_read_u8(prefix, NULL, "noiselvl5gua2",
&sprom->noiselvl5gua[2], 0, fallback);
nvram_read_u8(prefix, NULL, "pcieingress_war",
&sprom->pcieingress_war, 0, fallback);
}
static void bcm47xx_fill_sprom_r9(struct ssb_sprom *sprom, const char *prefix,
bool fallback)
{
nvram_read_u16(prefix, NULL, "cckbw202gpo", &sprom->cckbw202gpo, 0,
fallback);
nvram_read_u16(prefix, NULL, "cckbw20ul2gpo", &sprom->cckbw20ul2gpo, 0,
fallback);
nvram_read_u32(prefix, NULL, "legofdmbw202gpo",
&sprom->legofdmbw202gpo, 0, fallback);
nvram_read_u32(prefix, NULL, "legofdmbw20ul2gpo",
&sprom->legofdmbw20ul2gpo, 0, fallback);
nvram_read_u32(prefix, NULL, "legofdmbw205glpo",
&sprom->legofdmbw205glpo, 0, fallback);
nvram_read_u32(prefix, NULL, "legofdmbw20ul5glpo",
&sprom->legofdmbw20ul5glpo, 0, fallback);
nvram_read_u32(prefix, NULL, "legofdmbw205gmpo",
&sprom->legofdmbw205gmpo, 0, fallback);
nvram_read_u32(prefix, NULL, "legofdmbw20ul5gmpo",
&sprom->legofdmbw20ul5gmpo, 0, fallback);
nvram_read_u32(prefix, NULL, "legofdmbw205ghpo",
&sprom->legofdmbw205ghpo, 0, fallback);
nvram_read_u32(prefix, NULL, "legofdmbw20ul5ghpo",
&sprom->legofdmbw20ul5ghpo, 0, fallback);
nvram_read_u32(prefix, NULL, "mcsbw202gpo", &sprom->mcsbw202gpo, 0,
fallback);
nvram_read_u32(prefix, NULL, "mcsbw20ul2gpo", &sprom->mcsbw20ul2gpo, 0,
fallback);
nvram_read_u32(prefix, NULL, "mcsbw402gpo", &sprom->mcsbw402gpo, 0,
fallback);
nvram_read_u32(prefix, NULL, "mcsbw205glpo", &sprom->mcsbw205glpo, 0,
fallback);
nvram_read_u32(prefix, NULL, "mcsbw20ul5glpo",
&sprom->mcsbw20ul5glpo, 0, fallback);
nvram_read_u32(prefix, NULL, "mcsbw405glpo", &sprom->mcsbw405glpo, 0,
fallback);
nvram_read_u32(prefix, NULL, "mcsbw205gmpo", &sprom->mcsbw205gmpo, 0,
fallback);
nvram_read_u32(prefix, NULL, "mcsbw20ul5gmpo",
&sprom->mcsbw20ul5gmpo, 0, fallback);
nvram_read_u32(prefix, NULL, "mcsbw405gmpo", &sprom->mcsbw405gmpo, 0,
fallback);
nvram_read_u32(prefix, NULL, "mcsbw205ghpo", &sprom->mcsbw205ghpo, 0,
fallback);
nvram_read_u32(prefix, NULL, "mcsbw20ul5ghpo",
&sprom->mcsbw20ul5ghpo, 0, fallback);
nvram_read_u32(prefix, NULL, "mcsbw405ghpo", &sprom->mcsbw405ghpo, 0,
fallback);
nvram_read_u16(prefix, NULL, "mcs32po", &sprom->mcs32po, 0, fallback);
nvram_read_u16(prefix, NULL, "legofdm40duppo",
&sprom->legofdm40duppo, 0, fallback);
nvram_read_u8(prefix, NULL, "sar2g", &sprom->sar2g, 0, fallback);
nvram_read_u8(prefix, NULL, "sar5g", &sprom->sar5g, 0, fallback);
}
static void bcm47xx_fill_sprom_path_r4589(struct ssb_sprom *sprom,
const char *prefix, bool fallback)
{
char postfix[2];
int i;
for (i = 0; i < ARRAY_SIZE(sprom->core_pwr_info); i++) {
struct ssb_sprom_core_pwr_info *pwr_info = &sprom->core_pwr_info[i];
snprintf(postfix, sizeof(postfix), "%i", i);
nvram_read_u8(prefix, postfix, "maxp2ga",
&pwr_info->maxpwr_2g, 0, fallback);
nvram_read_u8(prefix, postfix, "itt2ga",
&pwr_info->itssi_2g, 0, fallback);
nvram_read_u8(prefix, postfix, "itt5ga",
&pwr_info->itssi_5g, 0, fallback);
nvram_read_u16(prefix, postfix, "pa2gw0a",
&pwr_info->pa_2g[0], 0, fallback);
nvram_read_u16(prefix, postfix, "pa2gw1a",
&pwr_info->pa_2g[1], 0, fallback);
nvram_read_u16(prefix, postfix, "pa2gw2a",
&pwr_info->pa_2g[2], 0, fallback);
nvram_read_u8(prefix, postfix, "maxp5ga",
&pwr_info->maxpwr_5g, 0, fallback);
nvram_read_u8(prefix, postfix, "maxp5gha",
&pwr_info->maxpwr_5gh, 0, fallback);
nvram_read_u8(prefix, postfix, "maxp5gla",
&pwr_info->maxpwr_5gl, 0, fallback);
nvram_read_u16(prefix, postfix, "pa5gw0a",
&pwr_info->pa_5g[0], 0, fallback);
nvram_read_u16(prefix, postfix, "pa5gw1a",
&pwr_info->pa_5g[1], 0, fallback);
nvram_read_u16(prefix, postfix, "pa5gw2a",
&pwr_info->pa_5g[2], 0, fallback);
nvram_read_u16(prefix, postfix, "pa5glw0a",
&pwr_info->pa_5gl[0], 0, fallback);
nvram_read_u16(prefix, postfix, "pa5glw1a",
&pwr_info->pa_5gl[1], 0, fallback);
nvram_read_u16(prefix, postfix, "pa5glw2a",
&pwr_info->pa_5gl[2], 0, fallback);
nvram_read_u16(prefix, postfix, "pa5ghw0a",
&pwr_info->pa_5gh[0], 0, fallback);
nvram_read_u16(prefix, postfix, "pa5ghw1a",
&pwr_info->pa_5gh[1], 0, fallback);
nvram_read_u16(prefix, postfix, "pa5ghw2a",
&pwr_info->pa_5gh[2], 0, fallback);
}
}
static void bcm47xx_fill_sprom_path_r45(struct ssb_sprom *sprom,
const char *prefix, bool fallback)
{
char postfix[2];
int i;
for (i = 0; i < ARRAY_SIZE(sprom->core_pwr_info); i++) {
struct ssb_sprom_core_pwr_info *pwr_info = &sprom->core_pwr_info[i];
snprintf(postfix, sizeof(postfix), "%i", i);
nvram_read_u16(prefix, postfix, "pa2gw3a",
&pwr_info->pa_2g[3], 0, fallback);
nvram_read_u16(prefix, postfix, "pa5gw3a",
&pwr_info->pa_5g[3], 0, fallback);
nvram_read_u16(prefix, postfix, "pa5glw3a",
&pwr_info->pa_5gl[3], 0, fallback);
nvram_read_u16(prefix, postfix, "pa5ghw3a",
&pwr_info->pa_5gh[3], 0, fallback);
}
}
static bool bcm47xx_is_valid_mac(u8 *mac)
{
return mac && !(mac[0] == 0x00 && mac[1] == 0x90 && mac[2] == 0x4c);
}
static int bcm47xx_increase_mac_addr(u8 *mac, u8 num)
{
u8 *oui = mac + ETH_ALEN/2 - 1;
u8 *p = mac + ETH_ALEN - 1;
do {
(*p) += num;
if (*p > num)
break;
p--;
num = 1;
} while (p != oui);
if (p == oui) {
pr_err("unable to fetch mac address\n");
return -ENOENT;
}
return 0;
}
static int mac_addr_used = 2;
static void bcm47xx_fill_sprom_ethernet(struct ssb_sprom *sprom,
const char *prefix, bool fallback)
{
nvram_read_macaddr(prefix, "et0macaddr", sprom->et0mac, fallback);
nvram_read_u8(prefix, NULL, "et0mdcport", &sprom->et0mdcport, 0,
fallback);
nvram_read_u8(prefix, NULL, "et0phyaddr", &sprom->et0phyaddr, 0,
fallback);
nvram_read_macaddr(prefix, "et1macaddr", sprom->et1mac, fallback);
nvram_read_u8(prefix, NULL, "et1mdcport", &sprom->et1mdcport, 0,
fallback);
nvram_read_u8(prefix, NULL, "et1phyaddr", &sprom->et1phyaddr, 0,
fallback);
nvram_read_macaddr(prefix, "macaddr", sprom->il0mac, fallback);
nvram_read_macaddr(prefix, "il0macaddr", sprom->il0mac, fallback);
/* The address prefix 00:90:4C is used by Broadcom in their initial
configuration. When a mac address with the prefix 00:90:4C is used
all devices from the same series are sharing the same mac address.
To prevent mac address collisions we replace them with a mac address
based on the base address. */
if (!bcm47xx_is_valid_mac(sprom->il0mac)) {
u8 mac[6];
nvram_read_macaddr(NULL, "et0macaddr", mac, false);
if (bcm47xx_is_valid_mac(mac)) {
int err = bcm47xx_increase_mac_addr(mac, mac_addr_used);
if (!err) {
ether_addr_copy(sprom->il0mac, mac);
mac_addr_used++;
}
}
}
}
static void bcm47xx_fill_board_data(struct ssb_sprom *sprom, const char *prefix,
bool fallback)
{
nvram_read_u16(prefix, NULL, "boardrev", &sprom->board_rev, 0, true);
nvram_read_u16(prefix, NULL, "boardnum", &sprom->board_num, 0,
fallback);
nvram_read_u16(prefix, NULL, "boardtype", &sprom->board_type, 0, true);
nvram_read_u32_2(prefix, "boardflags", &sprom->boardflags_lo,
&sprom->boardflags_hi, fallback);
nvram_read_u32_2(prefix, "boardflags2", &sprom->boardflags2_lo,
&sprom->boardflags2_hi, fallback);
}
void bcm47xx_fill_sprom(struct ssb_sprom *sprom, const char *prefix,
bool fallback)
{
bcm47xx_fill_sprom_ethernet(sprom, prefix, fallback);
bcm47xx_fill_board_data(sprom, prefix, fallback);
nvram_read_u8(prefix, NULL, "sromrev", &sprom->revision, 0, fallback);
switch (sprom->revision) {
case 1:
bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
bcm47xx_fill_sprom_r12389(sprom, prefix, fallback);
bcm47xx_fill_sprom_r1(sprom, prefix, fallback);
break;
case 2:
bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
bcm47xx_fill_sprom_r12389(sprom, prefix, fallback);
bcm47xx_fill_sprom_r2389(sprom, prefix, fallback);
break;
case 3:
bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
bcm47xx_fill_sprom_r12389(sprom, prefix, fallback);
bcm47xx_fill_sprom_r2389(sprom, prefix, fallback);
bcm47xx_fill_sprom_r389(sprom, prefix, fallback);
bcm47xx_fill_sprom_r3(sprom, prefix, fallback);
break;
case 4:
case 5:
bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
bcm47xx_fill_sprom_r4589(sprom, prefix, fallback);
bcm47xx_fill_sprom_r458(sprom, prefix, fallback);
bcm47xx_fill_sprom_r45(sprom, prefix, fallback);
bcm47xx_fill_sprom_path_r4589(sprom, prefix, fallback);
bcm47xx_fill_sprom_path_r45(sprom, prefix, fallback);
break;
case 8:
bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
bcm47xx_fill_sprom_r12389(sprom, prefix, fallback);
bcm47xx_fill_sprom_r2389(sprom, prefix, fallback);
bcm47xx_fill_sprom_r389(sprom, prefix, fallback);
bcm47xx_fill_sprom_r4589(sprom, prefix, fallback);
bcm47xx_fill_sprom_r458(sprom, prefix, fallback);
bcm47xx_fill_sprom_r89(sprom, prefix, fallback);
bcm47xx_fill_sprom_path_r4589(sprom, prefix, fallback);
break;
case 9:
bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
bcm47xx_fill_sprom_r12389(sprom, prefix, fallback);
bcm47xx_fill_sprom_r2389(sprom, prefix, fallback);
bcm47xx_fill_sprom_r389(sprom, prefix, fallback);
bcm47xx_fill_sprom_r4589(sprom, prefix, fallback);
bcm47xx_fill_sprom_r89(sprom, prefix, fallback);
bcm47xx_fill_sprom_r9(sprom, prefix, fallback);
bcm47xx_fill_sprom_path_r4589(sprom, prefix, fallback);
break;
default:
pr_warn("Unsupported SPROM revision %d detected. Will extract"
" v1\n", sprom->revision);
sprom->revision = 1;
bcm47xx_fill_sprom_r1234589(sprom, prefix, fallback);
bcm47xx_fill_sprom_r12389(sprom, prefix, fallback);
bcm47xx_fill_sprom_r1(sprom, prefix, fallback);
}
}
#ifdef CONFIG_BCM47XX_SSB
void bcm47xx_fill_ssb_boardinfo(struct ssb_boardinfo *boardinfo,
const char *prefix)
{
nvram_read_u16(prefix, NULL, "boardvendor", &boardinfo->vendor, 0,
true);
if (!boardinfo->vendor)
boardinfo->vendor = SSB_BOARDVENDOR_BCM;
nvram_read_u16(prefix, NULL, "boardtype", &boardinfo->type, 0, true);
}
#endif
#ifdef CONFIG_BCM47XX_BCMA
void bcm47xx_fill_bcma_boardinfo(struct bcma_boardinfo *boardinfo,
const char *prefix)
{
nvram_read_u16(prefix, NULL, "boardvendor", &boardinfo->vendor, 0,
true);
if (!boardinfo->vendor)
boardinfo->vendor = SSB_BOARDVENDOR_BCM;
nvram_read_u16(prefix, NULL, "boardtype", &boardinfo->type, 0, true);
}
#endif
#if defined(CONFIG_BCM47XX_SSB)
static int bcm47xx_get_sprom_ssb(struct ssb_bus *bus, struct ssb_sprom *out)
{
char prefix[10];
if (bus->bustype == SSB_BUSTYPE_PCI) {
memset(out, 0, sizeof(struct ssb_sprom));
snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
bus->host_pci->bus->number + 1,
PCI_SLOT(bus->host_pci->devfn));
bcm47xx_fill_sprom(out, prefix, false);
return 0;
} else {
pr_warn("bcm47xx: unable to fill SPROM for given bustype.\n");
return -EINVAL;
}
}
#endif
#if defined(CONFIG_BCM47XX_BCMA)
/*
* Having many NVRAM entries for PCI devices led to repeating prefixes like
* pci/1/1/ all the time and wasting flash space. So at some point Broadcom
* decided to introduce prefixes like 0: 1: 2: etc.
* If we find e.g. devpath0=pci/2/1 or devpath0=pci/2/1/ we should use 0:
* instead of pci/2/1/.
*/
static void bcm47xx_sprom_apply_prefix_alias(char *prefix, size_t prefix_size)
{
size_t prefix_len = strlen(prefix);
size_t short_len = prefix_len - 1;
char nvram_var[10];
char buf[20];
int i;
/* Passed prefix has to end with a slash */
if (prefix_len <= 0 || prefix[prefix_len - 1] != '/')
return;
for (i = 0; i < 3; i++) {
if (snprintf(nvram_var, sizeof(nvram_var), "devpath%d", i) <= 0)
continue;
if (bcm47xx_nvram_getenv(nvram_var, buf, sizeof(buf)) < 0)
continue;
if (!strcmp(buf, prefix) ||
(short_len && strlen(buf) == short_len && !strncmp(buf, prefix, short_len))) {
snprintf(prefix, prefix_size, "%d:", i);
return;
}
}
}
static int bcm47xx_get_sprom_bcma(struct bcma_bus *bus, struct ssb_sprom *out)
{
char prefix[10];
struct bcma_device *core;
switch (bus->hosttype) {
case BCMA_HOSTTYPE_PCI:
memset(out, 0, sizeof(struct ssb_sprom));
snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
bus->host_pci->bus->number + 1,
PCI_SLOT(bus->host_pci->devfn));
bcm47xx_sprom_apply_prefix_alias(prefix, sizeof(prefix));
bcm47xx_fill_sprom(out, prefix, false);
return 0;
case BCMA_HOSTTYPE_SOC:
memset(out, 0, sizeof(struct ssb_sprom));
core = bcma_find_core(bus, BCMA_CORE_80211);
if (core) {
snprintf(prefix, sizeof(prefix), "sb/%u/",
core->core_index);
bcm47xx_fill_sprom(out, prefix, true);
} else {
bcm47xx_fill_sprom(out, NULL, false);
}
return 0;
default:
pr_warn("bcm47xx: unable to fill SPROM for given bustype.\n");
return -EINVAL;
}
}
#endif
/*
* On bcm47xx we need to register SPROM fallback handler very early, so we can't
* use anything like platform device / driver for this.
*/
void bcm47xx_sprom_register_fallbacks(void)
{
#if defined(CONFIG_BCM47XX_SSB)
if (ssb_arch_register_fallback_sprom(&bcm47xx_get_sprom_ssb))
pr_warn("Failed to registered ssb SPROM handler\n");
#endif
#if defined(CONFIG_BCM47XX_BCMA)
if (bcma_arch_register_fallback_sprom(&bcm47xx_get_sprom_bcma))
pr_warn("Failed to registered bcma SPROM handler\n");
#endif
}
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