diff options
Diffstat (limited to 'package/bcm43xx-mac80211/src/bcm43xx/bcm43xx_lo.c')
| -rw-r--r-- | package/bcm43xx-mac80211/src/bcm43xx/bcm43xx_lo.c | 1112 |
1 files changed, 0 insertions, 1112 deletions
diff --git a/package/bcm43xx-mac80211/src/bcm43xx/bcm43xx_lo.c b/package/bcm43xx-mac80211/src/bcm43xx/bcm43xx_lo.c deleted file mode 100644 index aa1a298131..0000000000 --- a/package/bcm43xx-mac80211/src/bcm43xx/bcm43xx_lo.c +++ /dev/null @@ -1,1112 +0,0 @@ -/* - - Broadcom BCM43xx wireless driver - - G PHY LO (LocalOscillator) Measuring and Control routines - - Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>, - Copyright (c) 2005, 2006 Stefano Brivio <st3@riseup.net> - Copyright (c) 2005-2007 Michael Buesch <mb@bu3sch.de> - Copyright (c) 2005, 2006 Danny van Dyk <kugelfang@gentoo.org> - Copyright (c) 2005, 2006 Andreas Jaggi <andreas.jaggi@waterwave.ch> - - 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 "bcm43xx.h" -#include "bcm43xx_lo.h" -#include "bcm43xx_phy.h" -#include "bcm43xx_main.h" - -#include <linux/delay.h> -#include <linux/sched.h> - - -/* Write the LocalOscillator Control (adjust) value-pair. */ -static void bcm43xx_lo_write(struct bcm43xx_wldev *dev, - struct bcm43xx_loctl *control) -{ - struct bcm43xx_phy *phy = &dev->phy; - u16 value; - u16 reg; - - if (BCM43xx_DEBUG) { - if (unlikely(abs(control->i) > 16 || - abs(control->q) > 16)) { - printk(KERN_ERR PFX "ERROR: Invalid LO control pair " - "(I: %d, Q: %d)\n", - control->i, control->q); - dump_stack(); - return; - } - } - - value = (u8)(control->q); - value |= ((u8)(control->i)) << 8; - - reg = (phy->type == BCM43xx_PHYTYPE_B) ? 0x002F : BCM43xx_PHY_LO_CTL; - bcm43xx_phy_write(dev, reg, value); -} - -static inline -int assert_rfatt_and_bbatt(const struct bcm43xx_rfatt *rfatt, - const struct bcm43xx_bbatt *bbatt) -{ - int err = 0; - - /* Check the attenuation values against the LO control array sizes. */ -#if BCM43xx_DEBUG - if (rfatt->att >= BCM43xx_NR_RF) { - dprintk(KERN_ERR PFX - "ERROR: rfatt(%u) >= size of LO array\n", - rfatt->att); - err = -EINVAL; - } - if (bbatt->att >= BCM43xx_NR_BB) { - dprintk(KERN_ERR PFX - "ERROR: bbatt(%u) >= size of LO array\n", - bbatt->att); - err = -EINVAL; - } - if (err) - dump_stack(); -#endif /* BCM43xx_DEBUG */ - - return err; -} - -static -struct bcm43xx_loctl * bcm43xx_get_lo_g_ctl_nopadmix(struct bcm43xx_wldev *dev, - const struct bcm43xx_rfatt *rfatt, - const struct bcm43xx_bbatt *bbatt) -{ - struct bcm43xx_phy *phy = &dev->phy; - struct bcm43xx_txpower_lo_control *lo = phy->lo_control; - - if (assert_rfatt_and_bbatt(rfatt, bbatt)) - return &(lo->no_padmix[0][0]); /* Just prevent a crash */ - return &(lo->no_padmix[bbatt->att][rfatt->att]); -} - -struct bcm43xx_loctl * bcm43xx_get_lo_g_ctl(struct bcm43xx_wldev *dev, - const struct bcm43xx_rfatt *rfatt, - const struct bcm43xx_bbatt *bbatt) -{ - struct bcm43xx_phy *phy = &dev->phy; - struct bcm43xx_txpower_lo_control *lo = phy->lo_control; - - if (assert_rfatt_and_bbatt(rfatt, bbatt)) - return &(lo->no_padmix[0][0]); /* Just prevent a crash */ - if (rfatt->with_padmix) - return &(lo->with_padmix[bbatt->att][rfatt->att]); - return &(lo->no_padmix[bbatt->att][rfatt->att]); -} - -/* Call a function for every possible LO control value-pair. */ -static void bcm43xx_call_for_each_loctl(struct bcm43xx_wldev *dev, - void (*func)(struct bcm43xx_wldev *, - struct bcm43xx_loctl *)) -{ - struct bcm43xx_phy *phy = &dev->phy; - struct bcm43xx_txpower_lo_control *ctl = phy->lo_control; - int i, j; - - for (i = 0; i < BCM43xx_NR_BB; i++) { - for (j = 0; j < BCM43xx_NR_RF; j++) - func(dev, &(ctl->with_padmix[i][j])); - } - for (i = 0; i < BCM43xx_NR_BB; i++) { - for (j = 0; j < BCM43xx_NR_RF; j++) - func(dev, &(ctl->no_padmix[i][j])); - } -} - -static u16 lo_b_r15_loop(struct bcm43xx_wldev *dev) -{ - int i; - u16 ret = 0; - - for (i = 0; i < 10; i++){ - bcm43xx_phy_write(dev, 0x0015, 0xAFA0); - udelay(1); - bcm43xx_phy_write(dev, 0x0015, 0xEFA0); - udelay(10); - bcm43xx_phy_write(dev, 0x0015, 0xFFA0); - udelay(40); - ret += bcm43xx_phy_read(dev, 0x002C); - } - - return ret; -} - -void bcm43xx_lo_b_measure(struct bcm43xx_wldev *dev) -{ - struct bcm43xx_phy *phy = &dev->phy; - u16 regstack[12] = { 0 }; - u16 mls; - u16 fval; - int i, j; - - regstack[0] = bcm43xx_phy_read(dev, 0x0015); - regstack[1] = bcm43xx_radio_read16(dev, 0x0052) & 0xFFF0; - - if (phy->radio_ver == 0x2053) { - regstack[2] = bcm43xx_phy_read(dev, 0x000A); - regstack[3] = bcm43xx_phy_read(dev, 0x002A); - regstack[4] = bcm43xx_phy_read(dev, 0x0035); - regstack[5] = bcm43xx_phy_read(dev, 0x0003); - regstack[6] = bcm43xx_phy_read(dev, 0x0001); - regstack[7] = bcm43xx_phy_read(dev, 0x0030); - - regstack[8] = bcm43xx_radio_read16(dev, 0x0043); - regstack[9] = bcm43xx_radio_read16(dev, 0x007A); - regstack[10] = bcm43xx_read16(dev, 0x03EC); - regstack[11] = bcm43xx_radio_read16(dev, 0x0052) & 0x00F0; - - bcm43xx_phy_write(dev, 0x0030, 0x00FF); - bcm43xx_write16(dev, 0x03EC, 0x3F3F); - bcm43xx_phy_write(dev, 0x0035, regstack[4] & 0xFF7F); - bcm43xx_radio_write16(dev, 0x007A, regstack[9] & 0xFFF0); - } - bcm43xx_phy_write(dev, 0x0015, 0xB000); - bcm43xx_phy_write(dev, 0x002B, 0x0004); - - if (phy->radio_ver == 0x2053) { - bcm43xx_phy_write(dev, 0x002B, 0x0203); - bcm43xx_phy_write(dev, 0x002A, 0x08A3); - } - - phy->minlowsig[0] = 0xFFFF; - - for (i = 0; i < 4; i++) { - bcm43xx_radio_write16(dev, 0x0052, regstack[1] | i); - lo_b_r15_loop(dev); - } - for (i = 0; i < 10; i++) { - bcm43xx_radio_write16(dev, 0x0052, regstack[1] | i); - mls = lo_b_r15_loop(dev) / 10; - if (mls < phy->minlowsig[0]) { - phy->minlowsig[0] = mls; - phy->minlowsigpos[0] = i; - } - } - bcm43xx_radio_write16(dev, 0x0052, regstack[1] | phy->minlowsigpos[0]); - - phy->minlowsig[1] = 0xFFFF; - - for (i = -4; i < 5; i += 2) { - for (j = -4; j < 5; j += 2) { - if (j < 0) - fval = (0x0100 * i) + j + 0x0100; - else - fval = (0x0100 * i) + j; - bcm43xx_phy_write(dev, 0x002F, fval); - mls = lo_b_r15_loop(dev) / 10; - if (mls < phy->minlowsig[1]) { - phy->minlowsig[1] = mls; - phy->minlowsigpos[1] = fval; - } - } - } - phy->minlowsigpos[1] += 0x0101; - - bcm43xx_phy_write(dev, 0x002F, phy->minlowsigpos[1]); - if (phy->radio_ver == 0x2053) { - bcm43xx_phy_write(dev, 0x000A, regstack[2]); - bcm43xx_phy_write(dev, 0x002A, regstack[3]); - bcm43xx_phy_write(dev, 0x0035, regstack[4]); - bcm43xx_phy_write(dev, 0x0003, regstack[5]); - bcm43xx_phy_write(dev, 0x0001, regstack[6]); - bcm43xx_phy_write(dev, 0x0030, regstack[7]); - - bcm43xx_radio_write16(dev, 0x0043, regstack[8]); - bcm43xx_radio_write16(dev, 0x007A, regstack[9]); - - bcm43xx_radio_write16(dev, 0x0052, - (bcm43xx_radio_read16(dev, 0x0052) & 0x000F) - | regstack[11]); - - bcm43xx_write16(dev, 0x03EC, regstack[10]); - } - bcm43xx_phy_write(dev, 0x0015, regstack[0]); -} - -static u16 lo_measure_feedthrough(struct bcm43xx_wldev *dev, - u16 lna, u16 pga, u16 trsw_rx) -{ - struct bcm43xx_phy *phy = &dev->phy; - u16 rfover; - u16 feedthrough; - - if (phy->gmode) { - lna <<= BCM43xx_PHY_RFOVERVAL_LNA_SHIFT; - pga <<= BCM43xx_PHY_RFOVERVAL_PGA_SHIFT; - - assert((lna & ~BCM43xx_PHY_RFOVERVAL_LNA) == 0); - assert((pga & ~BCM43xx_PHY_RFOVERVAL_PGA) == 0); -/*FIXME This assertion fails assert((trsw_rx & ~(BCM43xx_PHY_RFOVERVAL_TRSWRX | - BCM43xx_PHY_RFOVERVAL_BW)) == 0); -*/ -trsw_rx &= (BCM43xx_PHY_RFOVERVAL_TRSWRX | BCM43xx_PHY_RFOVERVAL_BW); - - /* Construct the RF Override Value */ - rfover = BCM43xx_PHY_RFOVERVAL_UNK; - rfover |= pga; - rfover |= lna; - rfover |= trsw_rx; - if ((dev->dev->bus->sprom.r1.boardflags_lo & BCM43xx_BFL_EXTLNA) && - phy->rev > 6) - rfover |= BCM43xx_PHY_RFOVERVAL_EXTLNA; - - bcm43xx_phy_write(dev, BCM43xx_PHY_PGACTL, 0xE300); - bcm43xx_phy_write(dev, BCM43xx_PHY_RFOVERVAL, rfover); - udelay(10); - rfover |= BCM43xx_PHY_RFOVERVAL_BW_LBW; - bcm43xx_phy_write(dev, BCM43xx_PHY_RFOVERVAL, rfover); - udelay(10); - rfover |= BCM43xx_PHY_RFOVERVAL_BW_LPF; - bcm43xx_phy_write(dev, BCM43xx_PHY_RFOVERVAL, rfover); - udelay(10); - bcm43xx_phy_write(dev, BCM43xx_PHY_PGACTL, 0xF300); - } else { - pga |= BCM43xx_PHY_PGACTL_UNKNOWN; - bcm43xx_phy_write(dev, BCM43xx_PHY_PGACTL, pga); - udelay(10); - pga |= BCM43xx_PHY_PGACTL_LOWBANDW; - bcm43xx_phy_write(dev, BCM43xx_PHY_PGACTL, pga); - udelay(10); - pga |= BCM43xx_PHY_PGACTL_LPF; - bcm43xx_phy_write(dev, BCM43xx_PHY_PGACTL, pga); - } - udelay(21); - feedthrough = bcm43xx_phy_read(dev, BCM43xx_PHY_LO_LEAKAGE); - - /* This is a good place to check if we need to relax a bit, - * as this is the main function called regularly - * in the LO calibration. */ - cond_resched(); - - return feedthrough; -} - -/* TXCTL Register and Value Table. - * Returns the "TXCTL Register". - * "value" is the "TXCTL Value". - * "pad_mix_gain" is the PAD Mixer Gain. - */ -static u16 lo_txctl_register_table(struct bcm43xx_wldev *dev, - u16 *value, u16 *pad_mix_gain) -{ - struct bcm43xx_phy *phy = &dev->phy; - u16 reg, v, padmix; - - if (phy->type == BCM43xx_PHYTYPE_B) { - v = 0x30; - if (phy->radio_rev <= 5) { - reg = 0x43; - padmix = 0; - } else { - reg = 0x52; - padmix = 5; - } - } else { - if (phy->rev >= 2 && phy->radio_rev == 8) { - reg = 0x43; - v = 0x10; - padmix = 2; - } else { - reg = 0x52; - v = 0x30; - padmix = 5; - } - } - if (value) - *value = v; - if (pad_mix_gain) - *pad_mix_gain = padmix; - - return reg; -} - -static void lo_measure_txctl_values(struct bcm43xx_wldev *dev) -{ - struct bcm43xx_phy *phy = &dev->phy; - struct bcm43xx_txpower_lo_control *lo = phy->lo_control; - u16 reg, mask; - u16 trsw_rx, pga; - u16 radio_pctl_reg; - - static const u8 tx_bias_values[] = { - 0x09, 0x08, 0x0A, 0x01, 0x00, - 0x02, 0x05, 0x04, 0x06, - }; - static const u8 tx_magn_values[] = { - 0x70, 0x40, - }; - - if (!has_loopback_gain(phy)) { - radio_pctl_reg = 6; - trsw_rx = 2; - pga = 0; - } else { - int lb_gain; /* Loopback gain (in dB) */ - - trsw_rx = 0; - lb_gain = phy->max_lb_gain / 2; - if (lb_gain > 10) { - radio_pctl_reg = 0; - pga = abs(10 - lb_gain) / 6; - pga = limit_value(pga, 0, 15); - } else { - int cmp_val; - int tmp; - - pga = 0; - cmp_val = 0x24; - if ((phy->rev >= 2) && - (phy->radio_ver == 0x2050) && - (phy->radio_rev == 8)) - cmp_val = 0x3C; - tmp = lb_gain; - if ((10 - lb_gain) < cmp_val) - tmp = (10 - lb_gain); - if (tmp < 0) - tmp += 6; - else - tmp += 3; - cmp_val /= 4; - tmp /= 4; - if (tmp >= cmp_val) - radio_pctl_reg = cmp_val; - else - radio_pctl_reg = tmp; - } - } - bcm43xx_radio_write16(dev, 0x43, - (bcm43xx_radio_read16(dev, 0x43) - & 0xFFF0) | radio_pctl_reg); - bcm43xx_phy_set_baseband_attenuation(dev, 2); - - reg = lo_txctl_register_table(dev, &mask, NULL); - mask = ~mask; - bcm43xx_radio_write16(dev, reg, - bcm43xx_radio_read16(dev, reg) - & mask); - - if (has_tx_magnification(phy)) { - int i, j; - int feedthrough; - int min_feedth = 0xFFFF; - u8 tx_magn, tx_bias; - - for (i = 0; i < ARRAY_SIZE(tx_magn_values); i++) { - tx_magn = tx_magn_values[i]; - bcm43xx_radio_write16(dev, 0x52, - (bcm43xx_radio_read16(dev, 0x52) - & 0xFF0F) | tx_magn); - for (j = 0; j < ARRAY_SIZE(tx_bias_values); j++) { - tx_bias = tx_bias_values[j]; - bcm43xx_radio_write16(dev, 0x52, - (bcm43xx_radio_read16(dev, 0x52) - & 0xFFF0) | tx_bias); - feedthrough = lo_measure_feedthrough(dev, 0, pga, trsw_rx); - if (feedthrough < min_feedth) { - lo->tx_bias = tx_bias; - lo->tx_magn = tx_magn; - min_feedth = feedthrough; - } - if (lo->tx_bias == 0) - break; - } - bcm43xx_radio_write16(dev, 0x52, - (bcm43xx_radio_read16(dev, 0x52) - & 0xFF00) | lo->tx_bias | lo->tx_magn); - } - } else { - lo->tx_magn = 0; - lo->tx_bias = 0; - bcm43xx_radio_write16(dev, 0x52, - bcm43xx_radio_read16(dev, 0x52) - & 0xFFF0); /* TX bias == 0 */ - } -} - -static void lo_read_power_vector(struct bcm43xx_wldev *dev) -{ - struct bcm43xx_phy *phy = &dev->phy; - struct bcm43xx_txpower_lo_control *lo = phy->lo_control; - u16 i; - u64 tmp; - u64 power_vector = 0; - int rf_offset, bb_offset; - struct bcm43xx_loctl *loctl; - - for (i = 0; i < 8; i += 2) { - tmp = bcm43xx_shm_read16(dev, BCM43xx_SHM_SHARED, - 0x310 + i); - /* Clear the top byte. We get holes in the bitmap... */ - tmp &= 0xFF; - power_vector |= (tmp << (i * 8)); - /* Clear the vector on the device. */ - bcm43xx_shm_write16(dev, BCM43xx_SHM_SHARED, - 0x310 + i, 0); - } - - if (power_vector) - lo->power_vector = power_vector; - power_vector = lo->power_vector; - - for (i = 0; i < 64; i++) { - if (power_vector & ((u64)1ULL << i)) { - /* Now figure out which bcm43xx_loctl corresponds - * to this bit. - */ - rf_offset = i / lo->rfatt_list.len; - bb_offset = i % lo->rfatt_list.len;//FIXME? - loctl = bcm43xx_get_lo_g_ctl(dev, &lo->rfatt_list.list[rf_offset], - &lo->bbatt_list.list[bb_offset]); - /* And mark it as "used", as the device told us - * through the bitmap it is using it. - */ - loctl->used = 1; - } - } -} - -/* 802.11/LO/GPHY/MeasuringGains */ -static void lo_measure_gain_values(struct bcm43xx_wldev *dev, - s16 max_rx_gain, - int use_trsw_rx) -{ - struct bcm43xx_phy *phy = &dev->phy; - u16 tmp; - - if (max_rx_gain < 0) - max_rx_gain = 0; - - if (has_loopback_gain(phy)) { - int trsw_rx = 0; - int trsw_rx_gain; - - if (use_trsw_rx) { - trsw_rx_gain = phy->trsw_rx_gain / 2; - if (max_rx_gain >= trsw_rx_gain) { - trsw_rx_gain = max_rx_gain - trsw_rx_gain; - trsw_rx = 0x20; - } - } else - trsw_rx_gain = max_rx_gain; - if (trsw_rx_gain < 9) { - phy->lna_lod_gain = 0; - } else { - phy->lna_lod_gain = 1; - trsw_rx_gain -= 8; - } - trsw_rx_gain = limit_value(trsw_rx_gain, 0, 0x2D); - phy->pga_gain = trsw_rx_gain / 3; - if (phy->pga_gain >= 5) { - phy->pga_gain -= 5; - phy->lna_gain = 2; - } else - phy->lna_gain = 0; - } else { - phy->lna_gain = 0; - phy->trsw_rx_gain = 0x20; - if (max_rx_gain >= 0x14) { - phy->lna_lod_gain = 1; - phy->pga_gain = 2; - } else if (max_rx_gain >= 0x12) { - phy->lna_lod_gain = 1; - phy->pga_gain = 1; - } else if (max_rx_gain >= 0xF) { - phy->lna_lod_gain = 1; - phy->pga_gain = 0; - } else { - phy->lna_lod_gain = 0; - phy->pga_gain = 0; - } - } - - tmp = bcm43xx_radio_read16(dev, 0x7A); - if (phy->lna_lod_gain == 0) - tmp &= ~0x0008; - else - tmp |= 0x0008; - bcm43xx_radio_write16(dev, 0x7A, tmp); -} - -struct lo_g_saved_values { - u8 old_channel; - - /* Core registers */ - u16 reg_3F4; - u16 reg_3E2; - - /* PHY registers */ - u16 phy_lo_mask; - u16 phy_extg_01; - u16 phy_dacctl_hwpctl; - u16 phy_dacctl; - u16 phy_base_14; - u16 phy_hpwr_tssictl; - u16 phy_analogover; - u16 phy_analogoverval; - u16 phy_rfover; - u16 phy_rfoverval; - u16 phy_classctl; - u16 phy_base_3E; - u16 phy_crs0; - u16 phy_pgactl; - u16 phy_base_2A; - u16 phy_syncctl; - u16 phy_base_30; - u16 phy_base_06; - - /* Radio registers */ - u16 radio_43; - u16 radio_7A; - u16 radio_52; -}; - -static void lo_measure_setup(struct bcm43xx_wldev *dev, - struct lo_g_saved_values *sav) -{ - struct ssb_sprom *sprom = &dev->dev->bus->sprom; - struct bcm43xx_phy *phy = &dev->phy; - struct bcm43xx_txpower_lo_control *lo = phy->lo_control; - u16 tmp; - - if (has_hardware_pctl(phy)) { - sav->phy_lo_mask = bcm43xx_phy_read(dev, BCM43xx_PHY_LO_MASK); - sav->phy_extg_01 = bcm43xx_phy_read(dev, BCM43xx_PHY_EXTG(0x01)); - sav->phy_dacctl_hwpctl = bcm43xx_phy_read(dev, BCM43xx_PHY_DACCTL); - sav->phy_base_14 = bcm43xx_phy_read(dev, BCM43xx_PHY_BASE(0x14)); - sav->phy_hpwr_tssictl = bcm43xx_phy_read(dev, BCM43xx_PHY_HPWR_TSSICTL); - - bcm43xx_phy_write(dev, BCM43xx_PHY_HPWR_TSSICTL, - bcm43xx_phy_read(dev, BCM43xx_PHY_HPWR_TSSICTL) - | 0x100); - bcm43xx_phy_write(dev, BCM43xx_PHY_EXTG(0x01), - bcm43xx_phy_read(dev, BCM43xx_PHY_EXTG(0x01)) - | 0x40); - bcm43xx_phy_write(dev, BCM43xx_PHY_DACCTL, - bcm43xx_phy_read(dev, BCM43xx_PHY_DACCTL) - | 0x40); - bcm43xx_phy_write(dev, BCM43xx_PHY_BASE(0x14), - bcm43xx_phy_read(dev, BCM43xx_PHY_BASE(0x14)) - | 0x200); - } - if (phy->type == BCM43xx_PHYTYPE_B && - phy->radio_ver == 0x2050 && - phy->radio_rev < 6) { - bcm43xx_phy_write(dev, BCM43xx_PHY_BASE(0x16), 0x410); - bcm43xx_phy_write(dev, BCM43xx_PHY_BASE(0x17), 0x820); - } - if (!lo->rebuild && has_hardware_pctl(phy)) - lo_read_power_vector(dev); - if (phy->rev >= 2) { - sav->phy_analogover = bcm43xx_phy_read(dev, BCM43xx_PHY_ANALOGOVER); - sav->phy_analogoverval = bcm43xx_phy_read(dev, BCM43xx_PHY_ANALOGOVERVAL); - sav->phy_rfover = bcm43xx_phy_read(dev, BCM43xx_PHY_RFOVER); - sav->phy_rfoverval = bcm43xx_phy_read(dev, BCM43xx_PHY_RFOVERVAL); - sav->phy_classctl = bcm43xx_phy_read(dev, BCM43xx_PHY_CLASSCTL); - sav->phy_base_3E = bcm43xx_phy_read(dev, BCM43xx_PHY_BASE(0x3E)); - sav->phy_crs0 = bcm43xx_phy_read(dev, BCM43xx_PHY_CRS0); - - bcm43xx_phy_write(dev, BCM43xx_PHY_CLASSCTL, - bcm43xx_phy_read(dev, BCM43xx_PHY_CLASSCTL) - & 0xFFFC); - bcm43xx_phy_write(dev, BCM43xx_PHY_CRS0, - bcm43xx_phy_read(dev, BCM43xx_PHY_CRS0) - & 0x7FFF); - bcm43xx_phy_write(dev, BCM43xx_PHY_ANALOGOVER, - bcm43xx_phy_read(dev, BCM43xx_PHY_ANALOGOVER) - | 0x0003); - bcm43xx_phy_write(dev, BCM43xx_PHY_ANALOGOVERVAL, - bcm43xx_phy_read(dev, BCM43xx_PHY_ANALOGOVERVAL) - & 0xFFFC); - if (phy->type == BCM43xx_PHYTYPE_G) { - if ((phy->rev >= 7) && - (sprom->r1.boardflags_lo & BCM43xx_BFL_EXTLNA)) { - bcm43xx_phy_write(dev, BCM43xx_PHY_RFOVER, 0x933); - } else { - bcm43xx_phy_write(dev, BCM43xx_PHY_RFOVER, 0x133); - } - } else { - bcm43xx_phy_write(dev, BCM43xx_PHY_RFOVER, 0); - } - bcm43xx_phy_write(dev, BCM43xx_PHY_BASE(0x3E), 0); - } - sav->reg_3F4 = bcm43xx_read16(dev, 0x3F4); - sav->reg_3E2 = bcm43xx_read16(dev, 0x3E2); - sav->radio_43 = bcm43xx_radio_read16(dev, 0x43); - sav->radio_7A = bcm43xx_radio_read16(dev, 0x7A); - sav->phy_pgactl = bcm43xx_phy_read(dev, BCM43xx_PHY_PGACTL); - sav->phy_base_2A = bcm43xx_phy_read(dev, BCM43xx_PHY_BASE(0x2A)); - sav->phy_syncctl = bcm43xx_phy_read(dev, BCM43xx_PHY_SYNCCTL); - sav->phy_dacctl = bcm43xx_phy_read(dev, BCM43xx_PHY_DACCTL); - - if (!has_tx_magnification(phy)) { - sav->radio_52 = bcm43xx_radio_read16(dev, 0x52); - sav->radio_52 &= 0x00F0; - } - if (phy->type == BCM43xx_PHYTYPE_B) { - sav->phy_base_30 = bcm43xx_phy_read(dev, BCM43xx_PHY_BASE(0x30)); - sav->phy_base_06 = bcm43xx_phy_read(dev, BCM43xx_PHY_BASE(0x06)); - bcm43xx_phy_write(dev, BCM43xx_PHY_BASE(0x30), 0x00FF); - bcm43xx_phy_write(dev, BCM43xx_PHY_BASE(0x06), 0x3F3F); - } else { - bcm43xx_write16(dev, 0x3E2, - bcm43xx_read16(dev, 0x3E2) - | 0x8000); - } - bcm43xx_write16(dev, 0x3F4, - bcm43xx_read16(dev, 0x3F4) - & 0xF000); - - tmp = (phy->type == BCM43xx_PHYTYPE_G) ? BCM43xx_PHY_LO_MASK : BCM43xx_PHY_BASE(0x2E); - bcm43xx_phy_write(dev, tmp, 0x007F); - - tmp = sav->phy_syncctl; - bcm43xx_phy_write(dev, BCM43xx_PHY_SYNCCTL, tmp & 0xFF7F); - tmp = sav->radio_7A; - bcm43xx_radio_write16(dev, 0x007A, tmp & 0xFFF0); - - bcm43xx_phy_write(dev, BCM43xx_PHY_BASE(0x2A), 0x8A3); - if (phy->type == BCM43xx_PHYTYPE_G || - (phy->type == BCM43xx_PHYTYPE_B && - phy->radio_ver == 0x2050 && - phy->radio_rev >= 6)) { - bcm43xx_phy_write(dev, BCM43xx_PHY_BASE(0x2B), 0x1003); - } else - bcm43xx_phy_write(dev, BCM43xx_PHY_BASE(0x2B), 0x0802); - if (phy->rev >= 2) - bcm43xx_dummy_transmission(dev); - bcm43xx_radio_selectchannel(dev, 6, 0); - bcm43xx_radio_read16(dev, 0x51); /* dummy read */ - if (phy->type == BCM43xx_PHYTYPE_G) - bcm43xx_phy_write(dev, BCM43xx_PHY_BASE(0x2F), 0); - if (lo->rebuild) - lo_measure_txctl_values(dev); - if (phy->type == BCM43xx_PHYTYPE_G && phy->rev >= 3) { - bcm43xx_phy_write(dev, BCM43xx_PHY_LO_MASK, 0xC078); - } else { - if (phy->type == BCM43xx_PHYTYPE_B) - bcm43xx_phy_write(dev, BCM43xx_PHY_BASE(0x2E), 0x8078); - else - bcm43xx_phy_write(dev, BCM43xx_PHY_LO_MASK, 0x8078); - } -} - -static void lo_measure_restore(struct bcm43xx_wldev *dev, - struct lo_g_saved_values *sav) -{ - struct bcm43xx_phy *phy = &dev->phy; - struct bcm43xx_txpower_lo_control *lo = phy->lo_control; - u16 tmp; - - if (phy->rev >= 2) { - bcm43xx_phy_write(dev, BCM43xx_PHY_PGACTL, 0xE300); - tmp = (phy->pga_gain << 8); - bcm43xx_phy_write(dev, BCM43xx_PHY_RFOVERVAL, tmp | 0xA0); - udelay(5); - bcm43xx_phy_write(dev, BCM43xx_PHY_RFOVERVAL, tmp | 0xA2); - udelay(2); - bcm43xx_phy_write(dev, BCM43xx_PHY_RFOVERVAL, tmp | 0xA3); - } else { - tmp = (phy->pga_gain | 0xEFA0); - bcm43xx_phy_write(dev, BCM43xx_PHY_PGACTL, tmp); - } - if (has_hardware_pctl(phy)) { - bcm43xx_gphy_dc_lt_init(dev); - } else { - if (lo->rebuild) - bcm43xx_lo_g_adjust_to(dev, 3, 2, 0); - else - bcm43xx_lo_g_adjust(dev); - } - if (phy->type == BCM43xx_PHYTYPE_G) { - if (phy->rev >= 3) - bcm43xx_phy_write(dev, BCM43xx_PHY_BASE(0x2E), 0xC078); - else - bcm43xx_phy_write(dev, BCM43xx_PHY_BASE(0x2E), 0x8078); - if (phy->rev >= 2) - bcm43xx_phy_write(dev, BCM43xx_PHY_BASE(0x2F), 0x0202); - else - bcm43xx_phy_write(dev, BCM43xx_PHY_BASE(0x2F), 0x0101); - } - bcm43xx_write16(dev, 0x3F4, sav->reg_3F4); - bcm43xx_phy_write(dev, BCM43xx_PHY_PGACTL, sav->phy_pgactl); - bcm43xx_phy_write(dev, BCM43xx_PHY_BASE(0x2A), sav->phy_base_2A); - bcm43xx_phy_write(dev, BCM43xx_PHY_SYNCCTL, sav->phy_syncctl); - bcm43xx_phy_write(dev, BCM43xx_PHY_DACCTL, sav->phy_dacctl); - bcm43xx_radio_write16(dev, 0x43, sav->radio_43); - bcm43xx_radio_write16(dev, 0x7A, sav->radio_7A); - if (!has_tx_magnification(phy)) { - tmp = sav->radio_52; - bcm43xx_radio_write16(dev, 0x52, - (bcm43xx_radio_read16(dev, 0x52) - & 0xFF0F) | tmp); - } - bcm43xx_write16(dev, 0x3E2, sav->reg_3E2); - if (phy->type == BCM43xx_PHYTYPE_B && - phy->radio_ver == 0x2050 && - phy->radio_rev <= 5) { - bcm43xx_phy_write(dev, BCM43xx_PHY_BASE(0x30), sav->phy_base_30); - bcm43xx_phy_write(dev, BCM43xx_PHY_BASE(0x06), sav->phy_base_06); - } - if (phy->rev >= 2) { - bcm43xx_phy_write(dev, BCM43xx_PHY_ANALOGOVER, sav->phy_analogover); - bcm43xx_phy_write(dev, BCM43xx_PHY_ANALOGOVERVAL, sav->phy_analogoverval); - bcm43xx_phy_write(dev, BCM43xx_PHY_CLASSCTL, sav->phy_classctl); - bcm43xx_phy_write(dev, BCM43xx_PHY_RFOVER, sav->phy_rfover); - bcm43xx_phy_write(dev, BCM43xx_PHY_RFOVERVAL, sav->phy_rfoverval); - bcm43xx_phy_write(dev, BCM43xx_PHY_BASE(0x3E), sav->phy_base_3E); - bcm43xx_phy_write(dev, BCM43xx_PHY_CRS0, sav->phy_crs0); - } - if (has_hardware_pctl(phy)) { - tmp = (sav->phy_lo_mask & 0xBFFF); - bcm43xx_phy_write(dev, BCM43xx_PHY_LO_MASK, tmp); - bcm43xx_phy_write(dev, BCM43xx_PHY_EXTG(0x01), sav->phy_extg_01); - bcm43xx_phy_write(dev, BCM43xx_PHY_DACCTL, sav->phy_dacctl_hwpctl); - bcm43xx_phy_write(dev, BCM43xx_PHY_BASE(0x14), sav->phy_base_14); - bcm43xx_phy_write(dev, BCM43xx_PHY_HPWR_TSSICTL, sav->phy_hpwr_tssictl); - } - bcm43xx_radio_selectchannel(dev, sav->old_channel, 1); -} - -struct bcm43xx_lo_g_statemachine { - int current_state; - int nr_measured; - int state_val_multiplier; - u16 lowest_feedth; - struct bcm43xx_loctl min_loctl; -}; - -/* Loop over each possible value in this state. */ -static int lo_probe_possible_loctls(struct bcm43xx_wldev *dev, - struct bcm43xx_loctl *probe_loctl, - struct bcm43xx_lo_g_statemachine *d) -{ - struct bcm43xx_phy *phy = &dev->phy; - struct bcm43xx_txpower_lo_control *lo = phy->lo_control; - struct bcm43xx_loctl test_loctl; - struct bcm43xx_loctl orig_loctl; - struct bcm43xx_loctl prev_loctl = { - .i = -100, - .q = -100, - }; - int i; - int begin, end; - int found_lower = 0; - u16 feedth; - - static const struct bcm43xx_loctl modifiers[] = { - { .i = 1, .q = 1, }, - { .i = 1, .q = 0, }, - { .i = 1, .q = -1, }, - { .i = 0, .q = -1, }, - { .i = -1, .q = -1, }, - { .i = -1, .q = 0, }, - { .i = -1, .q = 1, }, - { .i = 0, .q = 1, }, - }; - - if (d->current_state == 0) { - begin = 1; - end = 8; - } else if (d->current_state % 2 == 0) { - begin = d->current_state - 1; - end = d->current_state + 1; - } else { - begin = d->current_state - 2; - end = d->current_state + 2; - } - if (begin < 1) - begin += 8; - if (end > 8) - end -= 8; - - memcpy(&orig_loctl, probe_loctl, sizeof(struct bcm43xx_loctl)); - i = begin; - d->current_state = i; - while (1) { - assert(i >= 1 && i <= 8); - memcpy(&test_loctl, &orig_loctl, sizeof(struct bcm43xx_loctl)); - test_loctl.i += modifiers[i - 1].i * d->state_val_multiplier; - test_loctl.q += modifiers[i - 1].q * d->state_val_multiplier; - if ((test_loctl.i != prev_loctl.i || - test_loctl.q != prev_loctl.q) && - (abs(test_loctl.i) <= 16 && - abs(test_loctl.q) <= 16)) { - bcm43xx_lo_write(dev, &test_loctl); - feedth = lo_measure_feedthrough(dev, phy->lna_gain, - phy->pga_gain, - phy->trsw_rx_gain); - if (feedth < d->lowest_feedth) { - memcpy(probe_loctl, &test_loctl, sizeof(struct bcm43xx_loctl)); - found_lower = 1; - d->lowest_feedth = feedth; - if ((d->nr_measured < 2) && - (!has_loopback_gain(phy) || lo->rebuild)) - break; - } - } - memcpy(&prev_loctl, &test_loctl, sizeof(prev_loctl)); - if (i == end) - break; - if (i == 8) - i = 1; - else - i++; - d->current_state = i; - } - - return found_lower; -} - -static void lo_probe_loctls_statemachine(struct bcm43xx_wldev *dev, - struct bcm43xx_loctl *loctl, - int *max_rx_gain) -{ - struct bcm43xx_phy *phy = &dev->phy; - struct bcm43xx_txpower_lo_control *lo = phy->lo_control; - struct bcm43xx_lo_g_statemachine d; - u16 feedth; - int found_lower; - struct bcm43xx_loctl probe_loctl; - int max_repeat = 1, repeat_cnt = 0; - - d.nr_measured = 0; - d.state_val_multiplier = 1; - if (has_loopback_gain(phy) && !lo->rebuild) - d.state_val_multiplier = 3; - - memcpy(&d.min_loctl, loctl, sizeof(struct bcm43xx_loctl)); - if (has_loopback_gain(phy) && lo->rebuild) - max_repeat = 4; - do { - bcm43xx_lo_write(dev, &d.min_loctl); - feedth = lo_measure_feedthrough(dev, phy->lna_gain, - phy->pga_gain, - phy->trsw_rx_gain); - if (!lo->rebuild && feedth < 0x258) { - if (feedth >= 0x12C) - *max_rx_gain += 6; - else - *max_rx_gain += 3; - feedth = lo_measure_feedthrough(dev, phy->lna_gain, - phy->pga_gain, - phy->trsw_rx_gain); - } - d.lowest_feedth = feedth; - - d.current_state = 0; - do { - assert(d.current_state >= 0 && d.current_state <= 8); - memcpy(&probe_loctl, &d.min_loctl, sizeof(struct bcm43xx_loctl)); - found_lower = lo_probe_possible_loctls(dev, &probe_loctl, &d); - if (!found_lower) - break; - if ((probe_loctl.i == d.min_loctl.i) && - (probe_loctl.q == d.min_loctl.q)) - break; - memcpy(&d.min_loctl, &probe_loctl, sizeof(struct bcm43xx_loctl)); - d.nr_measured++; - } while (d.nr_measured < 24); - memcpy(loctl, &d.min_loctl, sizeof(struct bcm43xx_loctl)); - - if (has_loopback_gain(phy)) { - if (d.lowest_feedth > 0x1194) - *max_rx_gain -= 6; - else if (d.lowest_feedth < 0x5DC) - *max_rx_gain += 3; - if (repeat_cnt == 0) { - if (d.lowest_feedth <= 0x5DC) { - d.state_val_multiplier = 1; - repeat_cnt++; - } else - d.state_val_multiplier = 2; - } else if (repeat_cnt == 2) - d.state_val_multiplier = 1; - } - lo_measure_gain_values(dev, *max_rx_gain, has_loopback_gain(phy)); - } while (++repeat_cnt < max_repeat); -} - -static void lo_measure(struct bcm43xx_wldev *dev) -{ - struct bcm43xx_phy *phy = &dev->phy; - struct bcm43xx_txpower_lo_control *lo = phy->lo_control; - struct bcm43xx_loctl loctl = { - .i = 0, - .q = 0, - }; - struct bcm43xx_loctl *ploctl; - int max_rx_gain; - int rfidx, bbidx; - - /* Values from the "TXCTL Register and Value Table" */ - u16 txctl_reg; - u16 txctl_value; - u16 pad_mix_gain; - - txctl_reg = lo_txctl_register_table(dev, &txctl_value, &pad_mix_gain); - - for (rfidx = 0; rfidx < lo->rfatt_list.len; rfidx++) { - - bcm43xx_radio_write16(dev, 0x43, - (bcm43xx_radio_read16(dev, 0x43) - & 0xFFF0) | lo->rfatt_list.list[rfidx].att); - bcm43xx_radio_write16(dev, txctl_reg, - (bcm43xx_radio_read16(dev, txctl_reg) - & ~txctl_value) - | (lo->rfatt_list.list[rfidx].with_padmix ? txctl_value : 0)); - - for (bbidx = 0; bbidx < lo->bbatt_list.len; bbidx++) { - if (lo->rebuild) { - ploctl = bcm43xx_get_lo_g_ctl_nopadmix(dev, - &lo->rfatt_list.list[rfidx], - &lo->bbatt_list.list[bbidx]); - } else { - ploctl = bcm43xx_get_lo_g_ctl(dev, &lo->rfatt_list.list[rfidx], - &lo->bbatt_list.list[bbidx]); - if (!ploctl->used) - continue; - } - memcpy(&loctl, ploctl, sizeof(loctl)); - - max_rx_gain = lo->rfatt_list.list[rfidx].att * 2; - max_rx_gain += lo->bbatt_list.list[bbidx].att / 2; - if (lo->rfatt_list.list[rfidx].with_padmix) - max_rx_gain -= pad_mix_gain; - if (has_loopback_gain(phy)) - max_rx_gain += phy->max_lb_gain; - lo_measure_gain_values(dev, max_rx_gain, has_loopback_gain(phy)); - - bcm43xx_phy_set_baseband_attenuation(dev, lo->bbatt_list.list[bbidx].att); - lo_probe_loctls_statemachine(dev, &loctl, &max_rx_gain); - if (phy->type == BCM43xx_PHYTYPE_B) { - loctl.i++; - loctl.q++; - } - memcpy(ploctl, &loctl, sizeof(loctl)); - } - } -} - -#if BCM43xx_DEBUG -static void do_validate_loctl(struct bcm43xx_wldev *dev, - struct bcm43xx_loctl *control) -{ - const int is_initializing = (bcm43xx_status(dev) == BCM43xx_STAT_INITIALIZING); - - if (unlikely(abs(control->i) > 16 || - abs(control->q) > 16 || - (is_initializing && control->used))) { - printk(KERN_ERR PFX "ERROR: LO control pair validation failed " - "(first: %d, second: %d, used %u)\n", - control->i, control->q, control->used); - } -} -static void validate_all_loctls(struct bcm43xx_wldev *dev) -{ - bcm43xx_call_for_each_loctl(dev, do_validate_loctl); -} -#else /* BCM43xx_DEBUG */ -static inline void validate_all_loctls(struct bcm43xx_wldev *dev) { } -#endif /* BCM43xx_DEBUG */ - -void bcm43xx_lo_g_measure(struct bcm43xx_wldev *dev) -{ - struct bcm43xx_phy *phy = &dev->phy; - struct lo_g_saved_values sav; - - assert(phy->type == BCM43xx_PHYTYPE_B || - phy->type == BCM43xx_PHYTYPE_G); - - sav.old_channel = phy->channel; - lo_measure_setup(dev, &sav); - lo_measure(dev); - lo_measure_restore(dev, &sav); - - validate_all_loctls(dev); - - phy->lo_control->lo_measured = 1; - phy->lo_control->rebuild = 0; -} - -void bcm43xx_lo_g_adjust(struct bcm43xx_wldev *dev) -{ - bcm43xx_lo_write(dev, bcm43xx_lo_g_ctl_current(dev)); -} - -static inline void fixup_rfatt_for_txcontrol(struct bcm43xx_rfatt *rf, - u8 tx_control) -{ - if (tx_control & BCM43xx_TXCTL_TXMIX) { - if (rf->att < 5) - rf->att = 4; - } -} - -void bcm43xx_lo_g_adjust_to(struct bcm43xx_wldev *dev, - u16 rfatt, u16 bbatt, u16 tx_control) -{ - struct bcm43xx_rfatt rf; - struct bcm43xx_bbatt bb; - struct bcm43xx_loctl *loctl; - - memset(&rf, 0, sizeof(rf)); - memset(&bb, 0, sizeof(bb)); - rf.att = rfatt; - bb.att = bbatt; - fixup_rfatt_for_txcontrol(&rf, tx_control); - loctl = bcm43xx_get_lo_g_ctl(dev, &rf, &bb); - bcm43xx_lo_write(dev, loctl); -} - -struct bcm43xx_loctl * bcm43xx_lo_g_ctl_current(struct bcm43xx_wldev *dev) -{ - struct bcm43xx_phy *phy = &dev->phy; - struct bcm43xx_rfatt rf; - - memcpy(&rf, &phy->rfatt, sizeof(rf)); - fixup_rfatt_for_txcontrol(&rf, phy->tx_control); - - return bcm43xx_get_lo_g_ctl(dev, &rf, &phy->bbatt); -} - -static void do_mark_unused(struct bcm43xx_wldev *dev, - struct bcm43xx_loctl *control) -{ - control->used = 0; -} - -void bcm43xx_lo_g_ctl_mark_all_unused(struct bcm43xx_wldev *dev) -{ - struct bcm43xx_phy *phy = &dev->phy; - struct bcm43xx_txpower_lo_control *lo = phy->lo_control; - - bcm43xx_call_for_each_loctl(dev, do_mark_unused); - lo->rebuild = 1; -} - -void bcm43xx_lo_g_ctl_mark_cur_used(struct bcm43xx_wldev *dev) -{ - bcm43xx_lo_g_ctl_current(dev)->used = 1; -} |