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/*
Broadcom B43 wireless driver
IEEE 802.11n PHY support
Copyright (c) 2008 Michael Buesch <mb@bu3sch.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 program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/types.h>
#include "radio_2055.h"
#include "radio_2056.h"
#include "main.h"
struct nphy_txgains {
u16 txgm[2];
u16 pga[2];
u16 pad[2];
u16 ipa[2];
};
struct nphy_iqcal_params {
u16 txgm;
u16 pga;
u16 pad;
u16 ipa;
u16 cal_gain;
u16 ncorr[5];
};
struct nphy_iq_est {
s32 iq0_prod;
u32 i0_pwr;
u32 q0_pwr;
s32 iq1_prod;
u32 i1_pwr;
u32 q1_pwr;
};
enum b43_nphy_rf_sequence {
B43_RFSEQ_RX2TX,
B43_RFSEQ_TX2RX,
B43_RFSEQ_RESET2RX,
B43_RFSEQ_UPDATE_GAINH,
B43_RFSEQ_UPDATE_GAINL,
B43_RFSEQ_UPDATE_GAINU,
};
enum b43_nphy_rssi_type {
B43_NPHY_RSSI_X = 0,
B43_NPHY_RSSI_Y,
B43_NPHY_RSSI_Z,
B43_NPHY_RSSI_PWRDET,
B43_NPHY_RSSI_TSSI_I,
B43_NPHY_RSSI_TSSI_Q,
B43_NPHY_RSSI_TBD,
};
static void b43_nphy_stay_in_carrier_search(struct b43_wldev *dev,
bool enable);
static void b43_nphy_set_rf_sequence(struct b43_wldev *dev, u8 cmd,
u8 *events, u8 *delays, u8 length);
static void b43_nphy_force_rf_sequence(struct b43_wldev *dev,
enum b43_nphy_rf_sequence seq);
static void b43_nphy_rf_control_override(struct b43_wldev *dev, u16 field,
u16 value, u8 core, bool off);
static void b43_nphy_rf_control_intc_override(struct b43_wldev *dev, u8 field,
u16 value, u8 core);
void b43_nphy_set_rxantenna(struct b43_wldev *dev, int antenna)
{//TODO
}
static void b43_nphy_op_adjust_txpower(struct b43_wldev *dev)
static enum b43_txpwr_result b43_nphy_op_recalc_txpower(struct b43_wldev *dev,
bool ignore_tssi)
{//TODO
return B43_TXPWR_RES_DONE;
}
static void b43_chantab_radio_upload(struct b43_wldev *dev,
const struct b43_nphy_channeltab_entry_rev2 *e)
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b43_radio_write(dev, B2055_PLL_REF, e->radio_pll_ref);
b43_radio_write(dev, B2055_RF_PLLMOD0, e->radio_rf_pllmod0);
b43_radio_write(dev, B2055_RF_PLLMOD1, e->radio_rf_pllmod1);
b43_radio_write(dev, B2055_VCO_CAPTAIL, e->radio_vco_captail);
b43_read32(dev, B43_MMIO_MACCTL); /* flush writes */
b43_radio_write(dev, B2055_VCO_CAL1, e->radio_vco_cal1);
b43_radio_write(dev, B2055_VCO_CAL2, e->radio_vco_cal2);
b43_radio_write(dev, B2055_PLL_LFC1, e->radio_pll_lfc1);
b43_radio_write(dev, B2055_PLL_LFR1, e->radio_pll_lfr1);
b43_read32(dev, B43_MMIO_MACCTL); /* flush writes */
b43_radio_write(dev, B2055_PLL_LFC2, e->radio_pll_lfc2);
b43_radio_write(dev, B2055_LGBUF_CENBUF, e->radio_lgbuf_cenbuf);
b43_radio_write(dev, B2055_LGEN_TUNE1, e->radio_lgen_tune1);
b43_radio_write(dev, B2055_LGEN_TUNE2, e->radio_lgen_tune2);
b43_read32(dev, B43_MMIO_MACCTL); /* flush writes */
b43_radio_write(dev, B2055_C1_LGBUF_ATUNE, e->radio_c1_lgbuf_atune);
b43_radio_write(dev, B2055_C1_LGBUF_GTUNE, e->radio_c1_lgbuf_gtune);
b43_radio_write(dev, B2055_C1_RX_RFR1, e->radio_c1_rx_rfr1);
b43_radio_write(dev, B2055_C1_TX_PGAPADTN, e->radio_c1_tx_pgapadtn);
b43_read32(dev, B43_MMIO_MACCTL); /* flush writes */
b43_radio_write(dev, B2055_C1_TX_MXBGTRIM, e->radio_c1_tx_mxbgtrim);
b43_radio_write(dev, B2055_C2_LGBUF_ATUNE, e->radio_c2_lgbuf_atune);
b43_radio_write(dev, B2055_C2_LGBUF_GTUNE, e->radio_c2_lgbuf_gtune);
b43_radio_write(dev, B2055_C2_RX_RFR1, e->radio_c2_rx_rfr1);
b43_read32(dev, B43_MMIO_MACCTL); /* flush writes */
b43_radio_write(dev, B2055_C2_TX_PGAPADTN, e->radio_c2_tx_pgapadtn);
b43_radio_write(dev, B2055_C2_TX_MXBGTRIM, e->radio_c2_tx_mxbgtrim);
}
static void b43_chantab_phy_upload(struct b43_wldev *dev,
const struct b43_phy_n_sfo_cfg *e)
{
b43_phy_write(dev, B43_NPHY_BW1A, e->phy_bw1a);
b43_phy_write(dev, B43_NPHY_BW2, e->phy_bw2);
b43_phy_write(dev, B43_NPHY_BW3, e->phy_bw3);
b43_phy_write(dev, B43_NPHY_BW4, e->phy_bw4);
b43_phy_write(dev, B43_NPHY_BW5, e->phy_bw5);
b43_phy_write(dev, B43_NPHY_BW6, e->phy_bw6);
}
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/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/TxPwrCtrlEnable */
static void b43_nphy_tx_power_ctrl(struct b43_wldev *dev, bool enable)
{
struct b43_phy_n *nphy = dev->phy.n;
u8 i;
u16 tmp;
if (nphy->hang_avoid)
b43_nphy_stay_in_carrier_search(dev, 1);
nphy->txpwrctrl = enable;
if (!enable) {
if (dev->phy.rev >= 3)
; /* TODO */
b43_phy_write(dev, B43_NPHY_TABLE_ADDR, 0x6840);
for (i = 0; i < 84; i++)
b43_phy_write(dev, B43_NPHY_TABLE_DATALO, 0);
b43_phy_write(dev, B43_NPHY_TABLE_ADDR, 0x6C40);
for (i = 0; i < 84; i++)
b43_phy_write(dev, B43_NPHY_TABLE_DATALO, 0);
tmp = B43_NPHY_TXPCTL_CMD_COEFF | B43_NPHY_TXPCTL_CMD_HWPCTLEN;
if (dev->phy.rev >= 3)
tmp |= B43_NPHY_TXPCTL_CMD_PCTLEN;
b43_phy_mask(dev, B43_NPHY_TXPCTL_CMD, ~tmp);
if (dev->phy.rev >= 3) {
b43_phy_set(dev, B43_NPHY_AFECTL_OVER1, 0x0100);
b43_phy_set(dev, B43_NPHY_AFECTL_OVER, 0x0100);
} else {
b43_phy_set(dev, B43_NPHY_AFECTL_OVER, 0x4000);
}
if (dev->phy.rev == 2)
b43_phy_maskset(dev, B43_NPHY_BPHY_CTL3,
~B43_NPHY_BPHY_CTL3_SCALE, 0x53);
else if (dev->phy.rev < 2)
b43_phy_maskset(dev, B43_NPHY_BPHY_CTL3,
~B43_NPHY_BPHY_CTL3_SCALE, 0x5A);
if (dev->phy.rev < 2 && 0)
; /* TODO */
} else {
b43err(dev->wl, "enabling tx pwr ctrl not implemented yet\n");
}
if (nphy->hang_avoid)
b43_nphy_stay_in_carrier_search(dev, 0);
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/TxPwrFix */
static void b43_nphy_tx_power_fix(struct b43_wldev *dev)
{
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struct b43_phy_n *nphy = dev->phy.n;
struct ssb_sprom *sprom = &(dev->dev->bus->sprom);
u8 txpi[2], bbmult, i;
u16 tmp, radio_gain, dac_gain;
u16 freq = dev->phy.channel_freq;
u32 txgain;
/* u32 gaintbl; rev3+ */
if (nphy->hang_avoid)
b43_nphy_stay_in_carrier_search(dev, 1);
if (dev->phy.rev >= 3) {
txpi[0] = 40;
txpi[1] = 40;
} else if (sprom->revision < 4) {
txpi[0] = 72;
txpi[1] = 72;
} else {
if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
txpi[0] = sprom->txpid2g[0];
txpi[1] = sprom->txpid2g[1];
} else if (freq >= 4900 && freq < 5100) {
txpi[0] = sprom->txpid5gl[0];
txpi[1] = sprom->txpid5gl[1];
} else if (freq >= 5100 && freq < 5500) {
txpi[0] = sprom->txpid5g[0];
txpi[1] = sprom->txpid5g[1];
} else if (freq >= 5500) {
txpi[0] = sprom->txpid5gh[0];
txpi[1] = sprom->txpid5gh[1];
} else {
txpi[0] = 91;
txpi[1] = 91;
}
}
/*
for (i = 0; i < 2; i++) {
nphy->txpwrindex[i].index_internal = txpi[i];
nphy->txpwrindex[i].index_internal_save = txpi[i];
}
*/
for (i = 0; i < 2; i++) {
if (dev->phy.rev >= 3) {
/* FIXME: support 5GHz */
txgain = b43_ntab_tx_gain_rev3plus_2ghz[txpi[i]];
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radio_gain = (txgain >> 16) & 0x1FFFF;
} else {
txgain = b43_ntab_tx_gain_rev0_1_2[txpi[i]];
radio_gain = (txgain >> 16) & 0x1FFF;
}
dac_gain = (txgain >> 8) & 0x3F;
bbmult = txgain & 0xFF;
if (dev->phy.rev >= 3) {
if (i == 0)
b43_phy_set(dev, B43_NPHY_AFECTL_OVER1, 0x0100);
else
b43_phy_set(dev, B43_NPHY_AFECTL_OVER, 0x0100);
} else {
b43_phy_set(dev, B43_NPHY_AFECTL_OVER, 0x4000);
}
if (i == 0)
b43_phy_write(dev, B43_NPHY_AFECTL_DACGAIN1, dac_gain);
else
b43_phy_write(dev, B43_NPHY_AFECTL_DACGAIN2, dac_gain);
b43_phy_write(dev, B43_NPHY_TABLE_ADDR, 0x1D10 + i);
b43_phy_write(dev, B43_NPHY_TABLE_DATALO, radio_gain);
b43_phy_write(dev, B43_NPHY_TABLE_ADDR, 0x3C57);
tmp = b43_phy_read(dev, B43_NPHY_TABLE_DATALO);
if (i == 0)
tmp = (tmp & 0x00FF) | (bbmult << 8);
else
tmp = (tmp & 0xFF00) | bbmult;
b43_phy_write(dev, B43_NPHY_TABLE_ADDR, 0x3C57);
b43_phy_write(dev, B43_NPHY_TABLE_DATALO, tmp);
if (0)
; /* TODO */
}
b43_phy_mask(dev, B43_NPHY_BPHY_CTL2, ~B43_NPHY_BPHY_CTL2_LUT);
if (nphy->hang_avoid)
b43_nphy_stay_in_carrier_search(dev, 0);
/* http://bcm-v4.sipsolutions.net/802.11/PHY/Radio/2055Setup */
static void b43_radio_2055_setup(struct b43_wldev *dev,
const struct b43_nphy_channeltab_entry_rev2 *e)
{
B43_WARN_ON(dev->phy.rev >= 3);
b43_chantab_radio_upload(dev, e);
udelay(50);
b43_radio_write(dev, B2055_VCO_CAL10, 0x05);
b43_radio_write(dev, B2055_VCO_CAL10, 0x45);
b43_read32(dev, B43_MMIO_MACCTL); /* flush writes */
b43_radio_write(dev, B2055_VCO_CAL10, 0x65);
static void b43_radio_init2055_pre(struct b43_wldev *dev)
{
b43_phy_mask(dev, B43_NPHY_RFCTL_CMD,
~B43_NPHY_RFCTL_CMD_PORFORCE);
b43_phy_set(dev, B43_NPHY_RFCTL_CMD,
B43_NPHY_RFCTL_CMD_CHIP0PU |
B43_NPHY_RFCTL_CMD_OEPORFORCE);
b43_phy_set(dev, B43_NPHY_RFCTL_CMD,
B43_NPHY_RFCTL_CMD_PORFORCE);
}
static void b43_radio_init2055_post(struct b43_wldev *dev)
{
struct b43_phy_n *nphy = dev->phy.n;
struct ssb_sprom *sprom = &(dev->dev->bus->sprom);
struct ssb_boardinfo *binfo = &(dev->dev->bus->boardinfo);
int i;
u16 val;
bool workaround = false;
if (sprom->revision < 4)
workaround = (binfo->vendor != PCI_VENDOR_ID_BROADCOM ||
binfo->type != 0x46D ||
binfo->rev < 0x41);
else
workaround =
!(sprom->boardflags2_lo & B43_BFL2_RXBB_INT_REG_DIS);
b43_radio_mask(dev, B2055_MASTER1, 0xFFF3);
if (workaround) {
b43_radio_mask(dev, B2055_C1_RX_BB_REG, 0x7F);
b43_radio_mask(dev, B2055_C2_RX_BB_REG, 0x7F);
b43_radio_maskset(dev, B2055_RRCCAL_NOPTSEL, 0xFFC0, 0x2C);
b43_radio_write(dev, B2055_CAL_MISC, 0x3C);
b43_radio_mask(dev, B2055_CAL_MISC, 0xFFBE);
b43_radio_set(dev, B2055_CAL_LPOCTL, 0x80);
b43_radio_set(dev, B2055_CAL_MISC, 0x1);
msleep(1);
b43_radio_set(dev, B2055_CAL_MISC, 0x40);
for (i = 0; i < 200; i++) {
val = b43_radio_read(dev, B2055_CAL_COUT2);
if (val & 0x80) {
i = 0;
if (i)
b43err(dev->wl, "radio post init timeout\n");
b43_radio_mask(dev, B2055_CAL_LPOCTL, 0xFF7F);
b43_switch_channel(dev, dev->phy.channel);
b43_radio_write(dev, B2055_C1_RX_BB_LPF, 0x9);
b43_radio_write(dev, B2055_C2_RX_BB_LPF, 0x9);
b43_radio_write(dev, B2055_C1_RX_BB_MIDACHP, 0x83);
b43_radio_write(dev, B2055_C2_RX_BB_MIDACHP, 0x83);
b43_radio_maskset(dev, B2055_C1_LNA_GAINBST, 0xFFF8, 0x6);
b43_radio_maskset(dev, B2055_C2_LNA_GAINBST, 0xFFF8, 0x6);
if (!nphy->gain_boost) {
b43_radio_set(dev, B2055_C1_RX_RFSPC1, 0x2);
b43_radio_set(dev, B2055_C2_RX_RFSPC1, 0x2);
} else {
b43_radio_mask(dev, B2055_C1_RX_RFSPC1, 0xFFFD);
b43_radio_mask(dev, B2055_C2_RX_RFSPC1, 0xFFFD);
}
udelay(2);
/*
* Initialize a Broadcom 2055 N-radio
* http://bcm-v4.sipsolutions.net/802.11/Radio/2055/Init
*/
static void b43_radio_init2055(struct b43_wldev *dev)
{
b43_radio_init2055_pre(dev);
if (b43_status(dev) < B43_STAT_INITIALIZED) {
/* Follow wl, not specs. Do not force uploading all regs */
b2055_upload_inittab(dev, 0, 0);
} else {
bool ghz5 = b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ;
b2055_upload_inittab(dev, ghz5, 0);
}
/*
* Initialize a Broadcom 2056 N-radio
* http://bcm-v4.sipsolutions.net/802.11/Radio/2056/Init
*/
static void b43_radio_init2056(struct b43_wldev *dev)
{
/* TODO */
}
/*
* Upload the N-PHY tables.
* http://bcm-v4.sipsolutions.net/802.11/PHY/N/InitTables
*/
static void b43_nphy_tables_init(struct b43_wldev *dev)
{
if (dev->phy.rev < 3)
b43_nphy_rev0_1_2_tables_init(dev);
else
b43_nphy_rev3plus_tables_init(dev);
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/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/PA%20override */
static void b43_nphy_pa_override(struct b43_wldev *dev, bool enable)
{
struct b43_phy_n *nphy = dev->phy.n;
enum ieee80211_band band;
u16 tmp;
if (!enable) {
nphy->rfctrl_intc1_save = b43_phy_read(dev,
B43_NPHY_RFCTL_INTC1);
nphy->rfctrl_intc2_save = b43_phy_read(dev,
B43_NPHY_RFCTL_INTC2);
band = b43_current_band(dev->wl);
if (dev->phy.rev >= 3) {
if (band == IEEE80211_BAND_5GHZ)
tmp = 0x600;
else
tmp = 0x480;
} else {
if (band == IEEE80211_BAND_5GHZ)
tmp = 0x180;
else
tmp = 0x120;
}
b43_phy_write(dev, B43_NPHY_RFCTL_INTC1, tmp);
b43_phy_write(dev, B43_NPHY_RFCTL_INTC2, tmp);
} else {
b43_phy_write(dev, B43_NPHY_RFCTL_INTC1,
nphy->rfctrl_intc1_save);
b43_phy_write(dev, B43_NPHY_RFCTL_INTC2,
nphy->rfctrl_intc2_save);
}
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/TxLpFbw */
static void b43_nphy_tx_lp_fbw(struct b43_wldev *dev)
{
struct b43_phy_n *nphy = dev->phy.n;
u16 tmp;
enum ieee80211_band band = b43_current_band(dev->wl);
bool ipa = (nphy->ipa2g_on && band == IEEE80211_BAND_2GHZ) ||
(nphy->ipa5g_on && band == IEEE80211_BAND_5GHZ);
if (dev->phy.rev >= 3) {
if (ipa) {
tmp = 4;
b43_phy_write(dev, B43_NPHY_TXF_40CO_B32S2,
(((((tmp << 3) | tmp) << 3) | tmp) << 3) | tmp);
}
tmp = 1;
b43_phy_write(dev, B43_NPHY_TXF_40CO_B1S2,
(((((tmp << 3) | tmp) << 3) | tmp) << 3) | tmp);
}
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/BmacPhyClkFgc */
static void b43_nphy_bmac_clock_fgc(struct b43_wldev *dev, bool force)
{
u32 tmslow;
if (dev->phy.type != B43_PHYTYPE_N)
return;
tmslow = ssb_read32(dev->dev, SSB_TMSLOW);
if (force)
tmslow |= SSB_TMSLOW_FGC;
else
tmslow &= ~SSB_TMSLOW_FGC;
ssb_write32(dev->dev, SSB_TMSLOW, tmslow);
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/CCA */
static void b43_nphy_reset_cca(struct b43_wldev *dev)
{
u16 bbcfg;
bbcfg = b43_phy_read(dev, B43_NPHY_BBCFG);
b43_phy_write(dev, B43_NPHY_BBCFG, bbcfg | B43_NPHY_BBCFG_RSTCCA);
udelay(1);
b43_phy_write(dev, B43_NPHY_BBCFG, bbcfg & ~B43_NPHY_BBCFG_RSTCCA);
b43_nphy_bmac_clock_fgc(dev, 0);
b43_nphy_force_rf_sequence(dev, B43_RFSEQ_RESET2RX);
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/MIMOConfig */
static void b43_nphy_update_mimo_config(struct b43_wldev *dev, s32 preamble)
{
u16 mimocfg = b43_phy_read(dev, B43_NPHY_MIMOCFG);
mimocfg |= B43_NPHY_MIMOCFG_AUTO;
if (preamble == 1)
mimocfg |= B43_NPHY_MIMOCFG_GFMIX;
else
mimocfg &= ~B43_NPHY_MIMOCFG_GFMIX;
b43_phy_write(dev, B43_NPHY_MIMOCFG, mimocfg);
}
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/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/Chains */
static void b43_nphy_update_txrx_chain(struct b43_wldev *dev)
{
struct b43_phy_n *nphy = dev->phy.n;
bool override = false;
u16 chain = 0x33;
if (nphy->txrx_chain == 0) {
chain = 0x11;
override = true;
} else if (nphy->txrx_chain == 1) {
chain = 0x22;
override = true;
}
b43_phy_maskset(dev, B43_NPHY_RFSEQCA,
~(B43_NPHY_RFSEQCA_TXEN | B43_NPHY_RFSEQCA_RXEN),
chain);
if (override)
b43_phy_set(dev, B43_NPHY_RFSEQMODE,
B43_NPHY_RFSEQMODE_CAOVER);
else
b43_phy_mask(dev, B43_NPHY_RFSEQMODE,
~B43_NPHY_RFSEQMODE_CAOVER);
}
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/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RxIqEst */
static void b43_nphy_rx_iq_est(struct b43_wldev *dev, struct nphy_iq_est *est,
u16 samps, u8 time, bool wait)
{
int i;
u16 tmp;
b43_phy_write(dev, B43_NPHY_IQEST_SAMCNT, samps);
b43_phy_maskset(dev, B43_NPHY_IQEST_WT, ~B43_NPHY_IQEST_WT_VAL, time);
if (wait)
b43_phy_set(dev, B43_NPHY_IQEST_CMD, B43_NPHY_IQEST_CMD_MODE);
else
b43_phy_mask(dev, B43_NPHY_IQEST_CMD, ~B43_NPHY_IQEST_CMD_MODE);
b43_phy_set(dev, B43_NPHY_IQEST_CMD, B43_NPHY_IQEST_CMD_START);
for (i = 1000; i; i--) {
tmp = b43_phy_read(dev, B43_NPHY_IQEST_CMD);
if (!(tmp & B43_NPHY_IQEST_CMD_START)) {
est->i0_pwr = (b43_phy_read(dev, B43_NPHY_IQEST_IPACC_HI0) << 16) |
b43_phy_read(dev, B43_NPHY_IQEST_IPACC_LO0);
est->q0_pwr = (b43_phy_read(dev, B43_NPHY_IQEST_QPACC_HI0) << 16) |
b43_phy_read(dev, B43_NPHY_IQEST_QPACC_LO0);
est->iq0_prod = (b43_phy_read(dev, B43_NPHY_IQEST_IQACC_HI0) << 16) |
b43_phy_read(dev, B43_NPHY_IQEST_IQACC_LO0);
est->i1_pwr = (b43_phy_read(dev, B43_NPHY_IQEST_IPACC_HI1) << 16) |
b43_phy_read(dev, B43_NPHY_IQEST_IPACC_LO1);
est->q1_pwr = (b43_phy_read(dev, B43_NPHY_IQEST_QPACC_HI1) << 16) |
b43_phy_read(dev, B43_NPHY_IQEST_QPACC_LO1);
est->iq1_prod = (b43_phy_read(dev, B43_NPHY_IQEST_IQACC_HI1) << 16) |
b43_phy_read(dev, B43_NPHY_IQEST_IQACC_LO1);
return;
}
udelay(10);
}
memset(est, 0, sizeof(*est));
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RxIqCoeffs */
static void b43_nphy_rx_iq_coeffs(struct b43_wldev *dev, bool write,
struct b43_phy_n_iq_comp *pcomp)
{
if (write) {
b43_phy_write(dev, B43_NPHY_C1_RXIQ_COMPA0, pcomp->a0);
b43_phy_write(dev, B43_NPHY_C1_RXIQ_COMPB0, pcomp->b0);
b43_phy_write(dev, B43_NPHY_C2_RXIQ_COMPA1, pcomp->a1);
b43_phy_write(dev, B43_NPHY_C2_RXIQ_COMPB1, pcomp->b1);
} else {
pcomp->a0 = b43_phy_read(dev, B43_NPHY_C1_RXIQ_COMPA0);
pcomp->b0 = b43_phy_read(dev, B43_NPHY_C1_RXIQ_COMPB0);
pcomp->a1 = b43_phy_read(dev, B43_NPHY_C2_RXIQ_COMPA1);
pcomp->b1 = b43_phy_read(dev, B43_NPHY_C2_RXIQ_COMPB1);
}
}
#if 0
/* Ready but not used anywhere */
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/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RxCalPhyCleanup */
static void b43_nphy_rx_cal_phy_cleanup(struct b43_wldev *dev, u8 core)
{
u16 *regs = dev->phy.n->tx_rx_cal_phy_saveregs;
b43_phy_write(dev, B43_NPHY_RFSEQCA, regs[0]);
if (core == 0) {
b43_phy_write(dev, B43_NPHY_AFECTL_C1, regs[1]);
b43_phy_write(dev, B43_NPHY_AFECTL_OVER1, regs[2]);
} else {
b43_phy_write(dev, B43_NPHY_AFECTL_C2, regs[1]);
b43_phy_write(dev, B43_NPHY_AFECTL_OVER, regs[2]);
}
b43_phy_write(dev, B43_NPHY_RFCTL_INTC1, regs[3]);
b43_phy_write(dev, B43_NPHY_RFCTL_INTC2, regs[4]);
b43_phy_write(dev, B43_NPHY_RFCTL_RSSIO1, regs[5]);
b43_phy_write(dev, B43_NPHY_RFCTL_RSSIO2, regs[6]);
b43_phy_write(dev, B43_NPHY_TXF_40CO_B1S1, regs[7]);
b43_phy_write(dev, B43_NPHY_RFCTL_OVER, regs[8]);
b43_phy_write(dev, B43_NPHY_PAPD_EN0, regs[9]);
b43_phy_write(dev, B43_NPHY_PAPD_EN1, regs[10]);
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RxCalPhySetup */
static void b43_nphy_rx_cal_phy_setup(struct b43_wldev *dev, u8 core)
{
u8 rxval, txval;
u16 *regs = dev->phy.n->tx_rx_cal_phy_saveregs;
regs[0] = b43_phy_read(dev, B43_NPHY_RFSEQCA);
if (core == 0) {
regs[1] = b43_phy_read(dev, B43_NPHY_AFECTL_C1);
regs[2] = b43_phy_read(dev, B43_NPHY_AFECTL_OVER1);
} else {
regs[1] = b43_phy_read(dev, B43_NPHY_AFECTL_C2);
regs[2] = b43_phy_read(dev, B43_NPHY_AFECTL_OVER);
}
regs[3] = b43_phy_read(dev, B43_NPHY_RFCTL_INTC1);
regs[4] = b43_phy_read(dev, B43_NPHY_RFCTL_INTC2);
regs[5] = b43_phy_read(dev, B43_NPHY_RFCTL_RSSIO1);
regs[6] = b43_phy_read(dev, B43_NPHY_RFCTL_RSSIO2);
regs[7] = b43_phy_read(dev, B43_NPHY_TXF_40CO_B1S1);
regs[8] = b43_phy_read(dev, B43_NPHY_RFCTL_OVER);
regs[9] = b43_phy_read(dev, B43_NPHY_PAPD_EN0);
regs[10] = b43_phy_read(dev, B43_NPHY_PAPD_EN1);
b43_phy_mask(dev, B43_NPHY_PAPD_EN0, ~0x0001);
b43_phy_mask(dev, B43_NPHY_PAPD_EN1, ~0x0001);
b43_phy_maskset(dev, B43_NPHY_RFSEQCA,
~B43_NPHY_RFSEQCA_RXDIS & 0xFFFF,
((1 - core) << B43_NPHY_RFSEQCA_RXDIS_SHIFT));
b43_phy_maskset(dev, B43_NPHY_RFSEQCA, ~B43_NPHY_RFSEQCA_TXEN,
((1 - core) << B43_NPHY_RFSEQCA_TXEN_SHIFT));
b43_phy_maskset(dev, B43_NPHY_RFSEQCA, ~B43_NPHY_RFSEQCA_RXEN,
(core << B43_NPHY_RFSEQCA_RXEN_SHIFT));
b43_phy_maskset(dev, B43_NPHY_RFSEQCA, ~B43_NPHY_RFSEQCA_TXDIS,
(core << B43_NPHY_RFSEQCA_TXDIS_SHIFT));
if (core == 0) {
b43_phy_mask(dev, B43_NPHY_AFECTL_C1, ~0x0007);
b43_phy_set(dev, B43_NPHY_AFECTL_OVER1, 0x0007);
} else {
b43_phy_mask(dev, B43_NPHY_AFECTL_C2, ~0x0007);
b43_phy_set(dev, B43_NPHY_AFECTL_OVER, 0x0007);
}
b43_nphy_rf_control_intc_override(dev, 2, 0, 3);
b43_nphy_rf_control_override(dev, 8, 0, 3, false);
b43_nphy_force_rf_sequence(dev, B43_RFSEQ_RX2TX);
if (core == 0) {
rxval = 1;
txval = 8;
} else {
rxval = 4;
txval = 2;
}
b43_nphy_rf_control_intc_override(dev, 1, rxval, (core + 1));
b43_nphy_rf_control_intc_override(dev, 1, txval, (2 - core));
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/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/CalcRxIqComp */
static void b43_nphy_calc_rx_iq_comp(struct b43_wldev *dev, u8 mask)
{
int i;
s32 iq;
u32 ii;
u32 qq;
int iq_nbits, qq_nbits;
int arsh, brsh;
u16 tmp, a, b;
struct nphy_iq_est est;
struct b43_phy_n_iq_comp old;
struct b43_phy_n_iq_comp new = { };
bool error = false;
if (mask == 0)
return;
b43_nphy_rx_iq_coeffs(dev, false, &old);
b43_nphy_rx_iq_coeffs(dev, true, &new);
b43_nphy_rx_iq_est(dev, &est, 0x4000, 32, false);
new = old;
for (i = 0; i < 2; i++) {
if (i == 0 && (mask & 1)) {
iq = est.iq0_prod;
ii = est.i0_pwr;
qq = est.q0_pwr;
} else if (i == 1 && (mask & 2)) {
iq = est.iq1_prod;
ii = est.i1_pwr;
qq = est.q1_pwr;
} else {
continue;
}
if (ii + qq < 2) {
error = true;
break;
}
iq_nbits = fls(abs(iq));
qq_nbits = fls(qq);
arsh = iq_nbits - 20;
if (arsh >= 0) {
a = -((iq << (30 - iq_nbits)) + (ii >> (1 + arsh)));
tmp = ii >> arsh;
} else {
a = -((iq << (30 - iq_nbits)) + (ii << (-1 - arsh)));
tmp = ii << -arsh;
}
if (tmp == 0) {
error = true;
break;
}
a /= tmp;
brsh = qq_nbits - 11;
if (brsh >= 0) {
b = (qq << (31 - qq_nbits));
tmp = ii >> brsh;
} else {
b = (qq << (31 - qq_nbits));
tmp = ii << -brsh;
}
if (tmp == 0) {
error = true;
break;
}
b = int_sqrt(b / tmp - a * a) - (1 << 10);
if (i == 0 && (mask & 0x1)) {
if (dev->phy.rev >= 3) {
new.a0 = a & 0x3FF;
new.b0 = b & 0x3FF;
} else {
new.a0 = b & 0x3FF;
new.b0 = a & 0x3FF;
}
} else if (i == 1 && (mask & 0x2)) {
if (dev->phy.rev >= 3) {
new.a1 = a & 0x3FF;
new.b1 = b & 0x3FF;
} else {
new.a1 = b & 0x3FF;
new.b1 = a & 0x3FF;
}
}
}
if (error)
new = old;
b43_nphy_rx_iq_coeffs(dev, true, &new);
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/TxIqWar */
static void b43_nphy_tx_iq_workaround(struct b43_wldev *dev)
{
u16 array[4];
int i;
b43_phy_write(dev, B43_NPHY_TABLE_ADDR, 0x3C50);
for (i = 0; i < 4; i++)
array[i] = b43_phy_read(dev, B43_NPHY_TABLE_DATALO);
b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_NPHY_TXIQW0, array[0]);
b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_NPHY_TXIQW1, array[1]);
b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_NPHY_TXIQW2, array[2]);
b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_NPHY_TXIQW3, array[3]);
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/clip-detection */
static void b43_nphy_write_clip_detection(struct b43_wldev *dev,
const u16 *clip_st)
{
b43_phy_write(dev, B43_NPHY_C1_CLIP1THRES, clip_st[0]);
b43_phy_write(dev, B43_NPHY_C2_CLIP1THRES, clip_st[1]);
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/clip-detection */
static void b43_nphy_read_clip_detection(struct b43_wldev *dev, u16 *clip_st)
{
clip_st[0] = b43_phy_read(dev, B43_NPHY_C1_CLIP1THRES);
clip_st[1] = b43_phy_read(dev, B43_NPHY_C2_CLIP1THRES);
}
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/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/SuperSwitchInit */
static void b43_nphy_superswitch_init(struct b43_wldev *dev, bool init)
{
if (dev->phy.rev >= 3) {
if (!init)
return;
if (0 /* FIXME */) {
b43_ntab_write(dev, B43_NTAB16(9, 2), 0x211);
b43_ntab_write(dev, B43_NTAB16(9, 3), 0x222);
b43_ntab_write(dev, B43_NTAB16(9, 8), 0x144);
b43_ntab_write(dev, B43_NTAB16(9, 12), 0x188);
}
} else {
b43_phy_write(dev, B43_NPHY_GPIO_LOOEN, 0);
b43_phy_write(dev, B43_NPHY_GPIO_HIOEN, 0);
ssb_chipco_gpio_control(&dev->dev->bus->chipco, 0xFC00,
0xFC00);
b43_write32(dev, B43_MMIO_MACCTL,
b43_read32(dev, B43_MMIO_MACCTL) &
~B43_MACCTL_GPOUTSMSK);
b43_write16(dev, B43_MMIO_GPIO_MASK,
b43_read16(dev, B43_MMIO_GPIO_MASK) | 0xFC00);
b43_write16(dev, B43_MMIO_GPIO_CONTROL,
b43_read16(dev, B43_MMIO_GPIO_CONTROL) & ~0xFC00);
if (init) {
b43_phy_write(dev, B43_NPHY_RFCTL_LUT_TRSW_LO1, 0x2D8);
b43_phy_write(dev, B43_NPHY_RFCTL_LUT_TRSW_UP1, 0x301);
b43_phy_write(dev, B43_NPHY_RFCTL_LUT_TRSW_LO2, 0x2D8);
b43_phy_write(dev, B43_NPHY_RFCTL_LUT_TRSW_UP2, 0x301);
}
}
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/classifier */
static u16 b43_nphy_classifier(struct b43_wldev *dev, u16 mask, u16 val)
{
u16 tmp;
if (dev->dev->id.revision == 16)
b43_mac_suspend(dev);
tmp = b43_phy_read(dev, B43_NPHY_CLASSCTL);
tmp &= (B43_NPHY_CLASSCTL_CCKEN | B43_NPHY_CLASSCTL_OFDMEN |
B43_NPHY_CLASSCTL_WAITEDEN);
tmp &= ~mask;
tmp |= (val & mask);
b43_phy_maskset(dev, B43_NPHY_CLASSCTL, 0xFFF8, tmp);
if (dev->dev->id.revision == 16)
b43_mac_enable(dev);
return tmp;
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/carriersearch */
static void b43_nphy_stay_in_carrier_search(struct b43_wldev *dev, bool enable)
{
struct b43_phy *phy = &dev->phy;
struct b43_phy_n *nphy = phy->n;
if (enable) {
if (nphy->deaf_count++ == 0) {
nphy->classifier_state = b43_nphy_classifier(dev, 0, 0);
b43_nphy_classifier(dev, 0x7, 0);
b43_nphy_read_clip_detection(dev, nphy->clip_state);
b43_nphy_write_clip_detection(dev, clip);
}
b43_nphy_reset_cca(dev);
} else {
if (--nphy->deaf_count == 0) {
b43_nphy_classifier(dev, 0x7, nphy->classifier_state);
b43_nphy_write_clip_detection(dev, nphy->clip_state);
}
}
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/stop-playback */
static void b43_nphy_stop_playback(struct b43_wldev *dev)
{
struct b43_phy_n *nphy = dev->phy.n;
u16 tmp;
if (nphy->hang_avoid)
b43_nphy_stay_in_carrier_search(dev, 1);
tmp = b43_phy_read(dev, B43_NPHY_SAMP_STAT);
if (tmp & 0x1)
b43_phy_set(dev, B43_NPHY_SAMP_CMD, B43_NPHY_SAMP_CMD_STOP);
else if (tmp & 0x2)
b43_phy_mask(dev, B43_NPHY_IQLOCAL_CMDGCTL, 0x7FFF);
b43_phy_mask(dev, B43_NPHY_SAMP_CMD, ~0x0004);
if (nphy->bb_mult_save & 0x80000000) {
tmp = nphy->bb_mult_save & 0xFFFF;
b43_ntab_write(dev, B43_NTAB16(15, 87), tmp);
nphy->bb_mult_save = 0;
}
if (nphy->hang_avoid)
b43_nphy_stay_in_carrier_search(dev, 0);
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/SpurWar */
static void b43_nphy_spur_workaround(struct b43_wldev *dev)
{
struct b43_phy_n *nphy = dev->phy.n;
u8 channel = dev->phy.channel;
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int tone[2] = { 57, 58 };
u32 noise[2] = { 0x3FF, 0x3FF };
B43_WARN_ON(dev->phy.rev < 3);
if (nphy->hang_avoid)
b43_nphy_stay_in_carrier_search(dev, 1);
if (nphy->gband_spurwar_en) {
/* TODO: N PHY Adjust Analog Pfbw (7) */
if (channel == 11 && dev->phy.is_40mhz)
; /* TODO: N PHY Adjust Min Noise Var(2, tone, noise)*/
else
; /* TODO: N PHY Adjust Min Noise Var(0, NULL, NULL)*/
/* TODO: N PHY Adjust CRS Min Power (0x1E) */
}
if (nphy->aband_spurwar_en) {
if (channel == 54) {
tone[0] = 0x20;
noise[0] = 0x25F;
} else if (channel == 38 || channel == 102 || channel == 118) {
if (0 /* FIXME */) {
tone[0] = 0x20;
noise[0] = 0x21F;
} else {
tone[0] = 0;
noise[0] = 0;
}
} else if (channel == 134) {
tone[0] = 0x20;
noise[0] = 0x21F;
} else if (channel == 151) {
tone[0] = 0x10;
noise[0] = 0x23F;
} else if (channel == 153 || channel == 161) {
tone[0] = 0x30;
noise[0] = 0x23F;
} else {
tone[0] = 0;
noise[0] = 0;
}
if (!tone[0] && !noise[0])
; /* TODO: N PHY Adjust Min Noise Var(1, tone, noise)*/
else
; /* TODO: N PHY Adjust Min Noise Var(0, NULL, NULL)*/
}
if (nphy->hang_avoid)
b43_nphy_stay_in_carrier_search(dev, 0);
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/AdjustLnaGainTbl */
static void b43_nphy_adjust_lna_gain_table(struct b43_wldev *dev)
{
struct b43_phy_n *nphy = dev->phy.n;
u8 i;
s16 tmp;
u16 data[4];
s16 gain[2];
u16 minmax[2];
static const u16 lna_gain[4] = { -2, 10, 19, 25 };