Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1 | /* |
| 2 | |
| 3 | Broadcom B43 wireless driver |
| 4 | |
| 5 | G PHY LO (LocalOscillator) Measuring and Control routines |
| 6 | |
| 7 | Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>, |
Stefano Brivio | 1f21ad2 | 2007-11-06 22:49:20 +0100 | [diff] [blame] | 8 | Copyright (c) 2005, 2006 Stefano Brivio <stefano.brivio@polimi.it> |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 9 | Copyright (c) 2005-2007 Michael Buesch <mb@bu3sch.de> |
| 10 | Copyright (c) 2005, 2006 Danny van Dyk <kugelfang@gentoo.org> |
| 11 | Copyright (c) 2005, 2006 Andreas Jaggi <andreas.jaggi@waterwave.ch> |
| 12 | |
| 13 | This program is free software; you can redistribute it and/or modify |
| 14 | it under the terms of the GNU General Public License as published by |
| 15 | the Free Software Foundation; either version 2 of the License, or |
| 16 | (at your option) any later version. |
| 17 | |
| 18 | This program is distributed in the hope that it will be useful, |
| 19 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 21 | GNU General Public License for more details. |
| 22 | |
| 23 | You should have received a copy of the GNU General Public License |
| 24 | along with this program; see the file COPYING. If not, write to |
| 25 | the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, |
| 26 | Boston, MA 02110-1301, USA. |
| 27 | |
| 28 | */ |
| 29 | |
| 30 | #include "b43.h" |
| 31 | #include "lo.h" |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 32 | #include "phy_g.h" |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 33 | #include "main.h" |
| 34 | |
| 35 | #include <linux/delay.h> |
| 36 | #include <linux/sched.h> |
| 37 | |
| 38 | |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 39 | static struct b43_lo_calib * b43_find_lo_calib(struct b43_txpower_lo_control *lo, |
| 40 | const struct b43_bbatt *bbatt, |
| 41 | const struct b43_rfatt *rfatt) |
| 42 | { |
| 43 | struct b43_lo_calib *c; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 44 | |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 45 | list_for_each_entry(c, &lo->calib_list, list) { |
| 46 | if (!b43_compare_bbatt(&c->bbatt, bbatt)) |
| 47 | continue; |
| 48 | if (!b43_compare_rfatt(&c->rfatt, rfatt)) |
| 49 | continue; |
| 50 | return c; |
| 51 | } |
| 52 | |
| 53 | return NULL; |
| 54 | } |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 55 | |
| 56 | /* Write the LocalOscillator Control (adjust) value-pair. */ |
| 57 | static void b43_lo_write(struct b43_wldev *dev, struct b43_loctl *control) |
| 58 | { |
| 59 | struct b43_phy *phy = &dev->phy; |
| 60 | u16 value; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 61 | |
| 62 | if (B43_DEBUG) { |
| 63 | if (unlikely(abs(control->i) > 16 || abs(control->q) > 16)) { |
| 64 | b43dbg(dev->wl, "Invalid LO control pair " |
| 65 | "(I: %d, Q: %d)\n", control->i, control->q); |
| 66 | dump_stack(); |
| 67 | return; |
| 68 | } |
| 69 | } |
Michael Buesch | f4440e8 | 2008-04-20 16:23:26 +0200 | [diff] [blame] | 70 | B43_WARN_ON(phy->type != B43_PHYTYPE_G); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 71 | |
| 72 | value = (u8) (control->q); |
| 73 | value |= ((u8) (control->i)) << 8; |
Michael Buesch | f4440e8 | 2008-04-20 16:23:26 +0200 | [diff] [blame] | 74 | b43_phy_write(dev, B43_PHY_LO_CTL, value); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 75 | } |
| 76 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 77 | static u16 lo_measure_feedthrough(struct b43_wldev *dev, |
| 78 | u16 lna, u16 pga, u16 trsw_rx) |
| 79 | { |
| 80 | struct b43_phy *phy = &dev->phy; |
| 81 | u16 rfover; |
| 82 | u16 feedthrough; |
| 83 | |
| 84 | if (phy->gmode) { |
| 85 | lna <<= B43_PHY_RFOVERVAL_LNA_SHIFT; |
| 86 | pga <<= B43_PHY_RFOVERVAL_PGA_SHIFT; |
| 87 | |
| 88 | B43_WARN_ON(lna & ~B43_PHY_RFOVERVAL_LNA); |
| 89 | B43_WARN_ON(pga & ~B43_PHY_RFOVERVAL_PGA); |
| 90 | /*FIXME This assertion fails B43_WARN_ON(trsw_rx & ~(B43_PHY_RFOVERVAL_TRSWRX | |
| 91 | B43_PHY_RFOVERVAL_BW)); |
| 92 | */ |
| 93 | trsw_rx &= (B43_PHY_RFOVERVAL_TRSWRX | B43_PHY_RFOVERVAL_BW); |
| 94 | |
| 95 | /* Construct the RF Override Value */ |
| 96 | rfover = B43_PHY_RFOVERVAL_UNK; |
| 97 | rfover |= pga; |
| 98 | rfover |= lna; |
| 99 | rfover |= trsw_rx; |
Larry Finger | 95de284 | 2007-11-09 16:57:18 -0600 | [diff] [blame] | 100 | if ((dev->dev->bus->sprom.boardflags_lo & B43_BFL_EXTLNA) |
| 101 | && phy->rev > 6) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 102 | rfover |= B43_PHY_RFOVERVAL_EXTLNA; |
| 103 | |
| 104 | b43_phy_write(dev, B43_PHY_PGACTL, 0xE300); |
| 105 | b43_phy_write(dev, B43_PHY_RFOVERVAL, rfover); |
| 106 | udelay(10); |
| 107 | rfover |= B43_PHY_RFOVERVAL_BW_LBW; |
| 108 | b43_phy_write(dev, B43_PHY_RFOVERVAL, rfover); |
| 109 | udelay(10); |
| 110 | rfover |= B43_PHY_RFOVERVAL_BW_LPF; |
| 111 | b43_phy_write(dev, B43_PHY_RFOVERVAL, rfover); |
| 112 | udelay(10); |
| 113 | b43_phy_write(dev, B43_PHY_PGACTL, 0xF300); |
| 114 | } else { |
| 115 | pga |= B43_PHY_PGACTL_UNKNOWN; |
| 116 | b43_phy_write(dev, B43_PHY_PGACTL, pga); |
| 117 | udelay(10); |
| 118 | pga |= B43_PHY_PGACTL_LOWBANDW; |
| 119 | b43_phy_write(dev, B43_PHY_PGACTL, pga); |
| 120 | udelay(10); |
| 121 | pga |= B43_PHY_PGACTL_LPF; |
| 122 | b43_phy_write(dev, B43_PHY_PGACTL, pga); |
| 123 | } |
| 124 | udelay(21); |
| 125 | feedthrough = b43_phy_read(dev, B43_PHY_LO_LEAKAGE); |
| 126 | |
| 127 | /* This is a good place to check if we need to relax a bit, |
| 128 | * as this is the main function called regularly |
| 129 | * in the LO calibration. */ |
| 130 | cond_resched(); |
| 131 | |
| 132 | return feedthrough; |
| 133 | } |
| 134 | |
| 135 | /* TXCTL Register and Value Table. |
| 136 | * Returns the "TXCTL Register". |
| 137 | * "value" is the "TXCTL Value". |
| 138 | * "pad_mix_gain" is the PAD Mixer Gain. |
| 139 | */ |
| 140 | static u16 lo_txctl_register_table(struct b43_wldev *dev, |
| 141 | u16 * value, u16 * pad_mix_gain) |
| 142 | { |
| 143 | struct b43_phy *phy = &dev->phy; |
| 144 | u16 reg, v, padmix; |
| 145 | |
| 146 | if (phy->type == B43_PHYTYPE_B) { |
| 147 | v = 0x30; |
| 148 | if (phy->radio_rev <= 5) { |
| 149 | reg = 0x43; |
| 150 | padmix = 0; |
| 151 | } else { |
| 152 | reg = 0x52; |
| 153 | padmix = 5; |
| 154 | } |
| 155 | } else { |
| 156 | if (phy->rev >= 2 && phy->radio_rev == 8) { |
| 157 | reg = 0x43; |
| 158 | v = 0x10; |
| 159 | padmix = 2; |
| 160 | } else { |
| 161 | reg = 0x52; |
| 162 | v = 0x30; |
| 163 | padmix = 5; |
| 164 | } |
| 165 | } |
| 166 | if (value) |
| 167 | *value = v; |
| 168 | if (pad_mix_gain) |
| 169 | *pad_mix_gain = padmix; |
| 170 | |
| 171 | return reg; |
| 172 | } |
| 173 | |
| 174 | static void lo_measure_txctl_values(struct b43_wldev *dev) |
| 175 | { |
| 176 | struct b43_phy *phy = &dev->phy; |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 177 | struct b43_phy_g *gphy = phy->g; |
| 178 | struct b43_txpower_lo_control *lo = gphy->lo_control; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 179 | u16 reg, mask; |
| 180 | u16 trsw_rx, pga; |
| 181 | u16 radio_pctl_reg; |
| 182 | |
| 183 | static const u8 tx_bias_values[] = { |
| 184 | 0x09, 0x08, 0x0A, 0x01, 0x00, |
| 185 | 0x02, 0x05, 0x04, 0x06, |
| 186 | }; |
| 187 | static const u8 tx_magn_values[] = { |
| 188 | 0x70, 0x40, |
| 189 | }; |
| 190 | |
| 191 | if (!has_loopback_gain(phy)) { |
| 192 | radio_pctl_reg = 6; |
| 193 | trsw_rx = 2; |
| 194 | pga = 0; |
| 195 | } else { |
| 196 | int lb_gain; /* Loopback gain (in dB) */ |
| 197 | |
| 198 | trsw_rx = 0; |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 199 | lb_gain = gphy->max_lb_gain / 2; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 200 | if (lb_gain > 10) { |
| 201 | radio_pctl_reg = 0; |
| 202 | pga = abs(10 - lb_gain) / 6; |
Harvey Harrison | cdbf084 | 2008-05-02 13:47:48 -0700 | [diff] [blame] | 203 | pga = clamp_val(pga, 0, 15); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 204 | } else { |
| 205 | int cmp_val; |
| 206 | int tmp; |
| 207 | |
| 208 | pga = 0; |
| 209 | cmp_val = 0x24; |
| 210 | if ((phy->rev >= 2) && |
| 211 | (phy->radio_ver == 0x2050) && (phy->radio_rev == 8)) |
| 212 | cmp_val = 0x3C; |
| 213 | tmp = lb_gain; |
| 214 | if ((10 - lb_gain) < cmp_val) |
| 215 | tmp = (10 - lb_gain); |
| 216 | if (tmp < 0) |
| 217 | tmp += 6; |
| 218 | else |
| 219 | tmp += 3; |
| 220 | cmp_val /= 4; |
| 221 | tmp /= 4; |
| 222 | if (tmp >= cmp_val) |
| 223 | radio_pctl_reg = cmp_val; |
| 224 | else |
| 225 | radio_pctl_reg = tmp; |
| 226 | } |
| 227 | } |
Michael Buesch | 5f9724d | 2009-02-20 19:31:21 +0100 | [diff] [blame^] | 228 | b43_radio_maskset(dev, 0x43, 0xFFF0, radio_pctl_reg); |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 229 | b43_gphy_set_baseband_attenuation(dev, 2); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 230 | |
| 231 | reg = lo_txctl_register_table(dev, &mask, NULL); |
| 232 | mask = ~mask; |
Michael Buesch | 3718582 | 2009-02-20 19:30:10 +0100 | [diff] [blame] | 233 | b43_radio_mask(dev, reg, mask); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 234 | |
| 235 | if (has_tx_magnification(phy)) { |
| 236 | int i, j; |
| 237 | int feedthrough; |
| 238 | int min_feedth = 0xFFFF; |
| 239 | u8 tx_magn, tx_bias; |
| 240 | |
| 241 | for (i = 0; i < ARRAY_SIZE(tx_magn_values); i++) { |
| 242 | tx_magn = tx_magn_values[i]; |
Michael Buesch | 5f9724d | 2009-02-20 19:31:21 +0100 | [diff] [blame^] | 243 | b43_radio_maskset(dev, 0x52, 0xFF0F, tx_magn); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 244 | for (j = 0; j < ARRAY_SIZE(tx_bias_values); j++) { |
| 245 | tx_bias = tx_bias_values[j]; |
Michael Buesch | 5f9724d | 2009-02-20 19:31:21 +0100 | [diff] [blame^] | 246 | b43_radio_maskset(dev, 0x52, 0xFFF0, tx_bias); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 247 | feedthrough = |
| 248 | lo_measure_feedthrough(dev, 0, pga, |
| 249 | trsw_rx); |
| 250 | if (feedthrough < min_feedth) { |
| 251 | lo->tx_bias = tx_bias; |
| 252 | lo->tx_magn = tx_magn; |
| 253 | min_feedth = feedthrough; |
| 254 | } |
| 255 | if (lo->tx_bias == 0) |
| 256 | break; |
| 257 | } |
| 258 | b43_radio_write16(dev, 0x52, |
| 259 | (b43_radio_read16(dev, 0x52) |
| 260 | & 0xFF00) | lo->tx_bias | lo-> |
| 261 | tx_magn); |
| 262 | } |
| 263 | } else { |
| 264 | lo->tx_magn = 0; |
| 265 | lo->tx_bias = 0; |
Michael Buesch | 3718582 | 2009-02-20 19:30:10 +0100 | [diff] [blame] | 266 | b43_radio_mask(dev, 0x52, 0xFFF0); /* TX bias == 0 */ |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 267 | } |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 268 | lo->txctl_measured_time = jiffies; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 269 | } |
| 270 | |
| 271 | static void lo_read_power_vector(struct b43_wldev *dev) |
| 272 | { |
| 273 | struct b43_phy *phy = &dev->phy; |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 274 | struct b43_phy_g *gphy = phy->g; |
| 275 | struct b43_txpower_lo_control *lo = gphy->lo_control; |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 276 | int i; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 277 | u64 tmp; |
| 278 | u64 power_vector = 0; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 279 | |
| 280 | for (i = 0; i < 8; i += 2) { |
| 281 | tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x310 + i); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 282 | power_vector |= (tmp << (i * 8)); |
| 283 | /* Clear the vector on the device. */ |
| 284 | b43_shm_write16(dev, B43_SHM_SHARED, 0x310 + i, 0); |
| 285 | } |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 286 | if (power_vector) |
| 287 | lo->power_vector = power_vector; |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 288 | lo->pwr_vec_read_time = jiffies; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 289 | } |
| 290 | |
| 291 | /* 802.11/LO/GPHY/MeasuringGains */ |
| 292 | static void lo_measure_gain_values(struct b43_wldev *dev, |
| 293 | s16 max_rx_gain, int use_trsw_rx) |
| 294 | { |
| 295 | struct b43_phy *phy = &dev->phy; |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 296 | struct b43_phy_g *gphy = phy->g; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 297 | u16 tmp; |
| 298 | |
| 299 | if (max_rx_gain < 0) |
| 300 | max_rx_gain = 0; |
| 301 | |
| 302 | if (has_loopback_gain(phy)) { |
| 303 | int trsw_rx = 0; |
| 304 | int trsw_rx_gain; |
| 305 | |
| 306 | if (use_trsw_rx) { |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 307 | trsw_rx_gain = gphy->trsw_rx_gain / 2; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 308 | if (max_rx_gain >= trsw_rx_gain) { |
| 309 | trsw_rx_gain = max_rx_gain - trsw_rx_gain; |
| 310 | trsw_rx = 0x20; |
| 311 | } |
| 312 | } else |
| 313 | trsw_rx_gain = max_rx_gain; |
| 314 | if (trsw_rx_gain < 9) { |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 315 | gphy->lna_lod_gain = 0; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 316 | } else { |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 317 | gphy->lna_lod_gain = 1; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 318 | trsw_rx_gain -= 8; |
| 319 | } |
Harvey Harrison | cdbf084 | 2008-05-02 13:47:48 -0700 | [diff] [blame] | 320 | trsw_rx_gain = clamp_val(trsw_rx_gain, 0, 0x2D); |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 321 | gphy->pga_gain = trsw_rx_gain / 3; |
| 322 | if (gphy->pga_gain >= 5) { |
| 323 | gphy->pga_gain -= 5; |
| 324 | gphy->lna_gain = 2; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 325 | } else |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 326 | gphy->lna_gain = 0; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 327 | } else { |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 328 | gphy->lna_gain = 0; |
| 329 | gphy->trsw_rx_gain = 0x20; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 330 | if (max_rx_gain >= 0x14) { |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 331 | gphy->lna_lod_gain = 1; |
| 332 | gphy->pga_gain = 2; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 333 | } else if (max_rx_gain >= 0x12) { |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 334 | gphy->lna_lod_gain = 1; |
| 335 | gphy->pga_gain = 1; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 336 | } else if (max_rx_gain >= 0xF) { |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 337 | gphy->lna_lod_gain = 1; |
| 338 | gphy->pga_gain = 0; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 339 | } else { |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 340 | gphy->lna_lod_gain = 0; |
| 341 | gphy->pga_gain = 0; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 342 | } |
| 343 | } |
| 344 | |
| 345 | tmp = b43_radio_read16(dev, 0x7A); |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 346 | if (gphy->lna_lod_gain == 0) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 347 | tmp &= ~0x0008; |
| 348 | else |
| 349 | tmp |= 0x0008; |
| 350 | b43_radio_write16(dev, 0x7A, tmp); |
| 351 | } |
| 352 | |
| 353 | struct lo_g_saved_values { |
| 354 | u8 old_channel; |
| 355 | |
| 356 | /* Core registers */ |
| 357 | u16 reg_3F4; |
| 358 | u16 reg_3E2; |
| 359 | |
| 360 | /* PHY registers */ |
| 361 | u16 phy_lo_mask; |
| 362 | u16 phy_extg_01; |
| 363 | u16 phy_dacctl_hwpctl; |
| 364 | u16 phy_dacctl; |
Michael Buesch | 5250703 | 2008-01-09 18:39:09 +0100 | [diff] [blame] | 365 | u16 phy_cck_14; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 366 | u16 phy_hpwr_tssictl; |
| 367 | u16 phy_analogover; |
| 368 | u16 phy_analogoverval; |
| 369 | u16 phy_rfover; |
| 370 | u16 phy_rfoverval; |
| 371 | u16 phy_classctl; |
Michael Buesch | 5250703 | 2008-01-09 18:39:09 +0100 | [diff] [blame] | 372 | u16 phy_cck_3E; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 373 | u16 phy_crs0; |
| 374 | u16 phy_pgactl; |
Michael Buesch | 5250703 | 2008-01-09 18:39:09 +0100 | [diff] [blame] | 375 | u16 phy_cck_2A; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 376 | u16 phy_syncctl; |
Michael Buesch | 5250703 | 2008-01-09 18:39:09 +0100 | [diff] [blame] | 377 | u16 phy_cck_30; |
| 378 | u16 phy_cck_06; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 379 | |
| 380 | /* Radio registers */ |
| 381 | u16 radio_43; |
| 382 | u16 radio_7A; |
| 383 | u16 radio_52; |
| 384 | }; |
| 385 | |
| 386 | static void lo_measure_setup(struct b43_wldev *dev, |
| 387 | struct lo_g_saved_values *sav) |
| 388 | { |
| 389 | struct ssb_sprom *sprom = &dev->dev->bus->sprom; |
| 390 | struct b43_phy *phy = &dev->phy; |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 391 | struct b43_phy_g *gphy = phy->g; |
| 392 | struct b43_txpower_lo_control *lo = gphy->lo_control; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 393 | u16 tmp; |
| 394 | |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 395 | if (b43_has_hardware_pctl(dev)) { |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 396 | sav->phy_lo_mask = b43_phy_read(dev, B43_PHY_LO_MASK); |
| 397 | sav->phy_extg_01 = b43_phy_read(dev, B43_PHY_EXTG(0x01)); |
| 398 | sav->phy_dacctl_hwpctl = b43_phy_read(dev, B43_PHY_DACCTL); |
Michael Buesch | 5250703 | 2008-01-09 18:39:09 +0100 | [diff] [blame] | 399 | sav->phy_cck_14 = b43_phy_read(dev, B43_PHY_CCK(0x14)); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 400 | sav->phy_hpwr_tssictl = b43_phy_read(dev, B43_PHY_HPWR_TSSICTL); |
| 401 | |
Michael Buesch | e59be0b | 2009-02-20 19:22:36 +0100 | [diff] [blame] | 402 | b43_phy_set(dev, B43_PHY_HPWR_TSSICTL, 0x100); |
| 403 | b43_phy_set(dev, B43_PHY_EXTG(0x01), 0x40); |
| 404 | b43_phy_set(dev, B43_PHY_DACCTL, 0x40); |
| 405 | b43_phy_set(dev, B43_PHY_CCK(0x14), 0x200); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 406 | } |
| 407 | if (phy->type == B43_PHYTYPE_B && |
| 408 | phy->radio_ver == 0x2050 && phy->radio_rev < 6) { |
Michael Buesch | 5250703 | 2008-01-09 18:39:09 +0100 | [diff] [blame] | 409 | b43_phy_write(dev, B43_PHY_CCK(0x16), 0x410); |
| 410 | b43_phy_write(dev, B43_PHY_CCK(0x17), 0x820); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 411 | } |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 412 | if (phy->rev >= 2) { |
| 413 | sav->phy_analogover = b43_phy_read(dev, B43_PHY_ANALOGOVER); |
| 414 | sav->phy_analogoverval = |
| 415 | b43_phy_read(dev, B43_PHY_ANALOGOVERVAL); |
| 416 | sav->phy_rfover = b43_phy_read(dev, B43_PHY_RFOVER); |
| 417 | sav->phy_rfoverval = b43_phy_read(dev, B43_PHY_RFOVERVAL); |
| 418 | sav->phy_classctl = b43_phy_read(dev, B43_PHY_CLASSCTL); |
Michael Buesch | 5250703 | 2008-01-09 18:39:09 +0100 | [diff] [blame] | 419 | sav->phy_cck_3E = b43_phy_read(dev, B43_PHY_CCK(0x3E)); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 420 | sav->phy_crs0 = b43_phy_read(dev, B43_PHY_CRS0); |
| 421 | |
Michael Buesch | ac1ea39 | 2009-02-20 19:25:05 +0100 | [diff] [blame] | 422 | b43_phy_mask(dev, B43_PHY_CLASSCTL, 0xFFFC); |
| 423 | b43_phy_mask(dev, B43_PHY_CRS0, 0x7FFF); |
Michael Buesch | e59be0b | 2009-02-20 19:22:36 +0100 | [diff] [blame] | 424 | b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0003); |
Michael Buesch | ac1ea39 | 2009-02-20 19:25:05 +0100 | [diff] [blame] | 425 | b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFC); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 426 | if (phy->type == B43_PHYTYPE_G) { |
| 427 | if ((phy->rev >= 7) && |
Larry Finger | 95de284 | 2007-11-09 16:57:18 -0600 | [diff] [blame] | 428 | (sprom->boardflags_lo & B43_BFL_EXTLNA)) { |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 429 | b43_phy_write(dev, B43_PHY_RFOVER, 0x933); |
| 430 | } else { |
| 431 | b43_phy_write(dev, B43_PHY_RFOVER, 0x133); |
| 432 | } |
| 433 | } else { |
| 434 | b43_phy_write(dev, B43_PHY_RFOVER, 0); |
| 435 | } |
Michael Buesch | 5250703 | 2008-01-09 18:39:09 +0100 | [diff] [blame] | 436 | b43_phy_write(dev, B43_PHY_CCK(0x3E), 0); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 437 | } |
| 438 | sav->reg_3F4 = b43_read16(dev, 0x3F4); |
| 439 | sav->reg_3E2 = b43_read16(dev, 0x3E2); |
| 440 | sav->radio_43 = b43_radio_read16(dev, 0x43); |
| 441 | sav->radio_7A = b43_radio_read16(dev, 0x7A); |
| 442 | sav->phy_pgactl = b43_phy_read(dev, B43_PHY_PGACTL); |
Michael Buesch | 5250703 | 2008-01-09 18:39:09 +0100 | [diff] [blame] | 443 | sav->phy_cck_2A = b43_phy_read(dev, B43_PHY_CCK(0x2A)); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 444 | sav->phy_syncctl = b43_phy_read(dev, B43_PHY_SYNCCTL); |
| 445 | sav->phy_dacctl = b43_phy_read(dev, B43_PHY_DACCTL); |
| 446 | |
| 447 | if (!has_tx_magnification(phy)) { |
| 448 | sav->radio_52 = b43_radio_read16(dev, 0x52); |
| 449 | sav->radio_52 &= 0x00F0; |
| 450 | } |
| 451 | if (phy->type == B43_PHYTYPE_B) { |
Michael Buesch | 5250703 | 2008-01-09 18:39:09 +0100 | [diff] [blame] | 452 | sav->phy_cck_30 = b43_phy_read(dev, B43_PHY_CCK(0x30)); |
| 453 | sav->phy_cck_06 = b43_phy_read(dev, B43_PHY_CCK(0x06)); |
| 454 | b43_phy_write(dev, B43_PHY_CCK(0x30), 0x00FF); |
| 455 | b43_phy_write(dev, B43_PHY_CCK(0x06), 0x3F3F); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 456 | } else { |
| 457 | b43_write16(dev, 0x3E2, b43_read16(dev, 0x3E2) |
| 458 | | 0x8000); |
| 459 | } |
| 460 | b43_write16(dev, 0x3F4, b43_read16(dev, 0x3F4) |
| 461 | & 0xF000); |
| 462 | |
| 463 | tmp = |
Michael Buesch | 5250703 | 2008-01-09 18:39:09 +0100 | [diff] [blame] | 464 | (phy->type == B43_PHYTYPE_G) ? B43_PHY_LO_MASK : B43_PHY_CCK(0x2E); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 465 | b43_phy_write(dev, tmp, 0x007F); |
| 466 | |
| 467 | tmp = sav->phy_syncctl; |
| 468 | b43_phy_write(dev, B43_PHY_SYNCCTL, tmp & 0xFF7F); |
| 469 | tmp = sav->radio_7A; |
| 470 | b43_radio_write16(dev, 0x007A, tmp & 0xFFF0); |
| 471 | |
Michael Buesch | 5250703 | 2008-01-09 18:39:09 +0100 | [diff] [blame] | 472 | b43_phy_write(dev, B43_PHY_CCK(0x2A), 0x8A3); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 473 | if (phy->type == B43_PHYTYPE_G || |
| 474 | (phy->type == B43_PHYTYPE_B && |
| 475 | phy->radio_ver == 0x2050 && phy->radio_rev >= 6)) { |
Michael Buesch | 5250703 | 2008-01-09 18:39:09 +0100 | [diff] [blame] | 476 | b43_phy_write(dev, B43_PHY_CCK(0x2B), 0x1003); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 477 | } else |
Michael Buesch | 5250703 | 2008-01-09 18:39:09 +0100 | [diff] [blame] | 478 | b43_phy_write(dev, B43_PHY_CCK(0x2B), 0x0802); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 479 | if (phy->rev >= 2) |
| 480 | b43_dummy_transmission(dev); |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 481 | b43_gphy_channel_switch(dev, 6, 0); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 482 | b43_radio_read16(dev, 0x51); /* dummy read */ |
| 483 | if (phy->type == B43_PHYTYPE_G) |
Michael Buesch | 5250703 | 2008-01-09 18:39:09 +0100 | [diff] [blame] | 484 | b43_phy_write(dev, B43_PHY_CCK(0x2F), 0); |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 485 | |
| 486 | /* Re-measure the txctl values, if needed. */ |
| 487 | if (time_before(lo->txctl_measured_time, |
| 488 | jiffies - B43_LO_TXCTL_EXPIRE)) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 489 | lo_measure_txctl_values(dev); |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 490 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 491 | if (phy->type == B43_PHYTYPE_G && phy->rev >= 3) { |
| 492 | b43_phy_write(dev, B43_PHY_LO_MASK, 0xC078); |
| 493 | } else { |
| 494 | if (phy->type == B43_PHYTYPE_B) |
Michael Buesch | 5250703 | 2008-01-09 18:39:09 +0100 | [diff] [blame] | 495 | b43_phy_write(dev, B43_PHY_CCK(0x2E), 0x8078); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 496 | else |
| 497 | b43_phy_write(dev, B43_PHY_LO_MASK, 0x8078); |
| 498 | } |
| 499 | } |
| 500 | |
| 501 | static void lo_measure_restore(struct b43_wldev *dev, |
| 502 | struct lo_g_saved_values *sav) |
| 503 | { |
| 504 | struct b43_phy *phy = &dev->phy; |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 505 | struct b43_phy_g *gphy = phy->g; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 506 | u16 tmp; |
| 507 | |
| 508 | if (phy->rev >= 2) { |
| 509 | b43_phy_write(dev, B43_PHY_PGACTL, 0xE300); |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 510 | tmp = (gphy->pga_gain << 8); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 511 | b43_phy_write(dev, B43_PHY_RFOVERVAL, tmp | 0xA0); |
| 512 | udelay(5); |
| 513 | b43_phy_write(dev, B43_PHY_RFOVERVAL, tmp | 0xA2); |
| 514 | udelay(2); |
| 515 | b43_phy_write(dev, B43_PHY_RFOVERVAL, tmp | 0xA3); |
| 516 | } else { |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 517 | tmp = (gphy->pga_gain | 0xEFA0); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 518 | b43_phy_write(dev, B43_PHY_PGACTL, tmp); |
| 519 | } |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 520 | if (phy->type == B43_PHYTYPE_G) { |
| 521 | if (phy->rev >= 3) |
Michael Buesch | 5250703 | 2008-01-09 18:39:09 +0100 | [diff] [blame] | 522 | b43_phy_write(dev, B43_PHY_CCK(0x2E), 0xC078); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 523 | else |
Michael Buesch | 5250703 | 2008-01-09 18:39:09 +0100 | [diff] [blame] | 524 | b43_phy_write(dev, B43_PHY_CCK(0x2E), 0x8078); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 525 | if (phy->rev >= 2) |
Michael Buesch | 5250703 | 2008-01-09 18:39:09 +0100 | [diff] [blame] | 526 | b43_phy_write(dev, B43_PHY_CCK(0x2F), 0x0202); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 527 | else |
Michael Buesch | 5250703 | 2008-01-09 18:39:09 +0100 | [diff] [blame] | 528 | b43_phy_write(dev, B43_PHY_CCK(0x2F), 0x0101); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 529 | } |
| 530 | b43_write16(dev, 0x3F4, sav->reg_3F4); |
| 531 | b43_phy_write(dev, B43_PHY_PGACTL, sav->phy_pgactl); |
Michael Buesch | 5250703 | 2008-01-09 18:39:09 +0100 | [diff] [blame] | 532 | b43_phy_write(dev, B43_PHY_CCK(0x2A), sav->phy_cck_2A); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 533 | b43_phy_write(dev, B43_PHY_SYNCCTL, sav->phy_syncctl); |
| 534 | b43_phy_write(dev, B43_PHY_DACCTL, sav->phy_dacctl); |
| 535 | b43_radio_write16(dev, 0x43, sav->radio_43); |
| 536 | b43_radio_write16(dev, 0x7A, sav->radio_7A); |
| 537 | if (!has_tx_magnification(phy)) { |
| 538 | tmp = sav->radio_52; |
Michael Buesch | 5f9724d | 2009-02-20 19:31:21 +0100 | [diff] [blame^] | 539 | b43_radio_maskset(dev, 0x52, 0xFF0F, tmp); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 540 | } |
| 541 | b43_write16(dev, 0x3E2, sav->reg_3E2); |
| 542 | if (phy->type == B43_PHYTYPE_B && |
| 543 | phy->radio_ver == 0x2050 && phy->radio_rev <= 5) { |
Michael Buesch | 5250703 | 2008-01-09 18:39:09 +0100 | [diff] [blame] | 544 | b43_phy_write(dev, B43_PHY_CCK(0x30), sav->phy_cck_30); |
| 545 | b43_phy_write(dev, B43_PHY_CCK(0x06), sav->phy_cck_06); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 546 | } |
| 547 | if (phy->rev >= 2) { |
| 548 | b43_phy_write(dev, B43_PHY_ANALOGOVER, sav->phy_analogover); |
| 549 | b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, |
| 550 | sav->phy_analogoverval); |
| 551 | b43_phy_write(dev, B43_PHY_CLASSCTL, sav->phy_classctl); |
| 552 | b43_phy_write(dev, B43_PHY_RFOVER, sav->phy_rfover); |
| 553 | b43_phy_write(dev, B43_PHY_RFOVERVAL, sav->phy_rfoverval); |
Michael Buesch | 5250703 | 2008-01-09 18:39:09 +0100 | [diff] [blame] | 554 | b43_phy_write(dev, B43_PHY_CCK(0x3E), sav->phy_cck_3E); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 555 | b43_phy_write(dev, B43_PHY_CRS0, sav->phy_crs0); |
| 556 | } |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 557 | if (b43_has_hardware_pctl(dev)) { |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 558 | tmp = (sav->phy_lo_mask & 0xBFFF); |
| 559 | b43_phy_write(dev, B43_PHY_LO_MASK, tmp); |
| 560 | b43_phy_write(dev, B43_PHY_EXTG(0x01), sav->phy_extg_01); |
| 561 | b43_phy_write(dev, B43_PHY_DACCTL, sav->phy_dacctl_hwpctl); |
Michael Buesch | 5250703 | 2008-01-09 18:39:09 +0100 | [diff] [blame] | 562 | b43_phy_write(dev, B43_PHY_CCK(0x14), sav->phy_cck_14); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 563 | b43_phy_write(dev, B43_PHY_HPWR_TSSICTL, sav->phy_hpwr_tssictl); |
| 564 | } |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 565 | b43_gphy_channel_switch(dev, sav->old_channel, 1); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 566 | } |
| 567 | |
| 568 | struct b43_lo_g_statemachine { |
| 569 | int current_state; |
| 570 | int nr_measured; |
| 571 | int state_val_multiplier; |
| 572 | u16 lowest_feedth; |
| 573 | struct b43_loctl min_loctl; |
| 574 | }; |
| 575 | |
| 576 | /* Loop over each possible value in this state. */ |
| 577 | static int lo_probe_possible_loctls(struct b43_wldev *dev, |
| 578 | struct b43_loctl *probe_loctl, |
| 579 | struct b43_lo_g_statemachine *d) |
| 580 | { |
| 581 | struct b43_phy *phy = &dev->phy; |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 582 | struct b43_phy_g *gphy = phy->g; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 583 | struct b43_loctl test_loctl; |
| 584 | struct b43_loctl orig_loctl; |
| 585 | struct b43_loctl prev_loctl = { |
| 586 | .i = -100, |
| 587 | .q = -100, |
| 588 | }; |
| 589 | int i; |
| 590 | int begin, end; |
| 591 | int found_lower = 0; |
| 592 | u16 feedth; |
| 593 | |
| 594 | static const struct b43_loctl modifiers[] = { |
| 595 | {.i = 1,.q = 1,}, |
| 596 | {.i = 1,.q = 0,}, |
| 597 | {.i = 1,.q = -1,}, |
| 598 | {.i = 0,.q = -1,}, |
| 599 | {.i = -1,.q = -1,}, |
| 600 | {.i = -1,.q = 0,}, |
| 601 | {.i = -1,.q = 1,}, |
| 602 | {.i = 0,.q = 1,}, |
| 603 | }; |
| 604 | |
| 605 | if (d->current_state == 0) { |
| 606 | begin = 1; |
| 607 | end = 8; |
| 608 | } else if (d->current_state % 2 == 0) { |
| 609 | begin = d->current_state - 1; |
| 610 | end = d->current_state + 1; |
| 611 | } else { |
| 612 | begin = d->current_state - 2; |
| 613 | end = d->current_state + 2; |
| 614 | } |
| 615 | if (begin < 1) |
| 616 | begin += 8; |
| 617 | if (end > 8) |
| 618 | end -= 8; |
| 619 | |
| 620 | memcpy(&orig_loctl, probe_loctl, sizeof(struct b43_loctl)); |
| 621 | i = begin; |
| 622 | d->current_state = i; |
| 623 | while (1) { |
| 624 | B43_WARN_ON(!(i >= 1 && i <= 8)); |
| 625 | memcpy(&test_loctl, &orig_loctl, sizeof(struct b43_loctl)); |
| 626 | test_loctl.i += modifiers[i - 1].i * d->state_val_multiplier; |
| 627 | test_loctl.q += modifiers[i - 1].q * d->state_val_multiplier; |
| 628 | if ((test_loctl.i != prev_loctl.i || |
| 629 | test_loctl.q != prev_loctl.q) && |
| 630 | (abs(test_loctl.i) <= 16 && abs(test_loctl.q) <= 16)) { |
| 631 | b43_lo_write(dev, &test_loctl); |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 632 | feedth = lo_measure_feedthrough(dev, gphy->lna_gain, |
| 633 | gphy->pga_gain, |
| 634 | gphy->trsw_rx_gain); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 635 | if (feedth < d->lowest_feedth) { |
| 636 | memcpy(probe_loctl, &test_loctl, |
| 637 | sizeof(struct b43_loctl)); |
| 638 | found_lower = 1; |
| 639 | d->lowest_feedth = feedth; |
| 640 | if ((d->nr_measured < 2) && |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 641 | !has_loopback_gain(phy)) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 642 | break; |
| 643 | } |
| 644 | } |
| 645 | memcpy(&prev_loctl, &test_loctl, sizeof(prev_loctl)); |
| 646 | if (i == end) |
| 647 | break; |
| 648 | if (i == 8) |
| 649 | i = 1; |
| 650 | else |
| 651 | i++; |
| 652 | d->current_state = i; |
| 653 | } |
| 654 | |
| 655 | return found_lower; |
| 656 | } |
| 657 | |
| 658 | static void lo_probe_loctls_statemachine(struct b43_wldev *dev, |
| 659 | struct b43_loctl *loctl, |
| 660 | int *max_rx_gain) |
| 661 | { |
| 662 | struct b43_phy *phy = &dev->phy; |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 663 | struct b43_phy_g *gphy = phy->g; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 664 | struct b43_lo_g_statemachine d; |
| 665 | u16 feedth; |
| 666 | int found_lower; |
| 667 | struct b43_loctl probe_loctl; |
| 668 | int max_repeat = 1, repeat_cnt = 0; |
| 669 | |
| 670 | d.nr_measured = 0; |
| 671 | d.state_val_multiplier = 1; |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 672 | if (has_loopback_gain(phy)) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 673 | d.state_val_multiplier = 3; |
| 674 | |
| 675 | memcpy(&d.min_loctl, loctl, sizeof(struct b43_loctl)); |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 676 | if (has_loopback_gain(phy)) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 677 | max_repeat = 4; |
| 678 | do { |
| 679 | b43_lo_write(dev, &d.min_loctl); |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 680 | feedth = lo_measure_feedthrough(dev, gphy->lna_gain, |
| 681 | gphy->pga_gain, |
| 682 | gphy->trsw_rx_gain); |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 683 | if (feedth < 0x258) { |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 684 | if (feedth >= 0x12C) |
| 685 | *max_rx_gain += 6; |
| 686 | else |
| 687 | *max_rx_gain += 3; |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 688 | feedth = lo_measure_feedthrough(dev, gphy->lna_gain, |
| 689 | gphy->pga_gain, |
| 690 | gphy->trsw_rx_gain); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 691 | } |
| 692 | d.lowest_feedth = feedth; |
| 693 | |
| 694 | d.current_state = 0; |
| 695 | do { |
| 696 | B43_WARN_ON(! |
| 697 | (d.current_state >= 0 |
| 698 | && d.current_state <= 8)); |
| 699 | memcpy(&probe_loctl, &d.min_loctl, |
| 700 | sizeof(struct b43_loctl)); |
| 701 | found_lower = |
| 702 | lo_probe_possible_loctls(dev, &probe_loctl, &d); |
| 703 | if (!found_lower) |
| 704 | break; |
| 705 | if ((probe_loctl.i == d.min_loctl.i) && |
| 706 | (probe_loctl.q == d.min_loctl.q)) |
| 707 | break; |
| 708 | memcpy(&d.min_loctl, &probe_loctl, |
| 709 | sizeof(struct b43_loctl)); |
| 710 | d.nr_measured++; |
| 711 | } while (d.nr_measured < 24); |
| 712 | memcpy(loctl, &d.min_loctl, sizeof(struct b43_loctl)); |
| 713 | |
| 714 | if (has_loopback_gain(phy)) { |
| 715 | if (d.lowest_feedth > 0x1194) |
| 716 | *max_rx_gain -= 6; |
| 717 | else if (d.lowest_feedth < 0x5DC) |
| 718 | *max_rx_gain += 3; |
| 719 | if (repeat_cnt == 0) { |
| 720 | if (d.lowest_feedth <= 0x5DC) { |
| 721 | d.state_val_multiplier = 1; |
| 722 | repeat_cnt++; |
| 723 | } else |
| 724 | d.state_val_multiplier = 2; |
| 725 | } else if (repeat_cnt == 2) |
| 726 | d.state_val_multiplier = 1; |
| 727 | } |
| 728 | lo_measure_gain_values(dev, *max_rx_gain, |
| 729 | has_loopback_gain(phy)); |
| 730 | } while (++repeat_cnt < max_repeat); |
| 731 | } |
| 732 | |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 733 | static |
| 734 | struct b43_lo_calib * b43_calibrate_lo_setting(struct b43_wldev *dev, |
| 735 | const struct b43_bbatt *bbatt, |
| 736 | const struct b43_rfatt *rfatt) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 737 | { |
| 738 | struct b43_phy *phy = &dev->phy; |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 739 | struct b43_phy_g *gphy = phy->g; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 740 | struct b43_loctl loctl = { |
| 741 | .i = 0, |
| 742 | .q = 0, |
| 743 | }; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 744 | int max_rx_gain; |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 745 | struct b43_lo_calib *cal; |
| 746 | struct lo_g_saved_values uninitialized_var(saved_regs); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 747 | /* Values from the "TXCTL Register and Value Table" */ |
| 748 | u16 txctl_reg; |
| 749 | u16 txctl_value; |
| 750 | u16 pad_mix_gain; |
| 751 | |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 752 | saved_regs.old_channel = phy->channel; |
| 753 | b43_mac_suspend(dev); |
| 754 | lo_measure_setup(dev, &saved_regs); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 755 | |
| 756 | txctl_reg = lo_txctl_register_table(dev, &txctl_value, &pad_mix_gain); |
| 757 | |
Michael Buesch | 5f9724d | 2009-02-20 19:31:21 +0100 | [diff] [blame^] | 758 | b43_radio_maskset(dev, 0x43, 0xFFF0, rfatt->att); |
| 759 | b43_radio_maskset(dev, txctl_reg, ~txctl_value, (rfatt->with_padmix ? txctl_value :0)); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 760 | |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 761 | max_rx_gain = rfatt->att * 2; |
| 762 | max_rx_gain += bbatt->att / 2; |
| 763 | if (rfatt->with_padmix) |
| 764 | max_rx_gain -= pad_mix_gain; |
| 765 | if (has_loopback_gain(phy)) |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 766 | max_rx_gain += gphy->max_lb_gain; |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 767 | lo_measure_gain_values(dev, max_rx_gain, |
| 768 | has_loopback_gain(phy)); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 769 | |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 770 | b43_gphy_set_baseband_attenuation(dev, bbatt->att); |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 771 | lo_probe_loctls_statemachine(dev, &loctl, &max_rx_gain); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 772 | |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 773 | lo_measure_restore(dev, &saved_regs); |
| 774 | b43_mac_enable(dev); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 775 | |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 776 | if (b43_debug(dev, B43_DBG_LO)) { |
| 777 | b43dbg(dev->wl, "LO: Calibrated for BB(%u), RF(%u,%u) " |
| 778 | "=> I=%d Q=%d\n", |
| 779 | bbatt->att, rfatt->att, rfatt->with_padmix, |
| 780 | loctl.i, loctl.q); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 781 | } |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 782 | |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 783 | cal = kmalloc(sizeof(*cal), GFP_KERNEL); |
| 784 | if (!cal) { |
| 785 | b43warn(dev->wl, "LO calib: out of memory\n"); |
| 786 | return NULL; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 787 | } |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 788 | memcpy(&cal->bbatt, bbatt, sizeof(*bbatt)); |
| 789 | memcpy(&cal->rfatt, rfatt, sizeof(*rfatt)); |
| 790 | memcpy(&cal->ctl, &loctl, sizeof(loctl)); |
| 791 | cal->calib_time = jiffies; |
| 792 | INIT_LIST_HEAD(&cal->list); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 793 | |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 794 | return cal; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 795 | } |
| 796 | |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 797 | /* Get a calibrated LO setting for the given attenuation values. |
| 798 | * Might return a NULL pointer under OOM! */ |
| 799 | static |
| 800 | struct b43_lo_calib * b43_get_calib_lo_settings(struct b43_wldev *dev, |
| 801 | const struct b43_bbatt *bbatt, |
| 802 | const struct b43_rfatt *rfatt) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 803 | { |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 804 | struct b43_txpower_lo_control *lo = dev->phy.g->lo_control; |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 805 | struct b43_lo_calib *c; |
| 806 | |
| 807 | c = b43_find_lo_calib(lo, bbatt, rfatt); |
| 808 | if (c) |
| 809 | return c; |
| 810 | /* Not in the list of calibrated LO settings. |
| 811 | * Calibrate it now. */ |
| 812 | c = b43_calibrate_lo_setting(dev, bbatt, rfatt); |
| 813 | if (!c) |
| 814 | return NULL; |
| 815 | list_add(&c->list, &lo->calib_list); |
| 816 | |
| 817 | return c; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 818 | } |
| 819 | |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 820 | void b43_gphy_dc_lt_init(struct b43_wldev *dev, bool update_all) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 821 | { |
| 822 | struct b43_phy *phy = &dev->phy; |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 823 | struct b43_phy_g *gphy = phy->g; |
| 824 | struct b43_txpower_lo_control *lo = gphy->lo_control; |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 825 | int i; |
| 826 | int rf_offset, bb_offset; |
| 827 | const struct b43_rfatt *rfatt; |
| 828 | const struct b43_bbatt *bbatt; |
| 829 | u64 power_vector; |
| 830 | bool table_changed = 0; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 831 | |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 832 | BUILD_BUG_ON(B43_DC_LT_SIZE != 32); |
| 833 | B43_WARN_ON(lo->rfatt_list.len * lo->bbatt_list.len > 64); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 834 | |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 835 | power_vector = lo->power_vector; |
| 836 | if (!update_all && !power_vector) |
| 837 | return; /* Nothing to do. */ |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 838 | |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 839 | /* Suspend the MAC now to avoid continuous suspend/enable |
| 840 | * cycles in the loop. */ |
| 841 | b43_mac_suspend(dev); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 842 | |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 843 | for (i = 0; i < B43_DC_LT_SIZE * 2; i++) { |
| 844 | struct b43_lo_calib *cal; |
| 845 | int idx; |
| 846 | u16 val; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 847 | |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 848 | if (!update_all && !(power_vector & (((u64)1ULL) << i))) |
| 849 | continue; |
| 850 | /* Update the table entry for this power_vector bit. |
| 851 | * The table rows are RFatt entries and columns are BBatt. */ |
| 852 | bb_offset = i / lo->rfatt_list.len; |
| 853 | rf_offset = i % lo->rfatt_list.len; |
| 854 | bbatt = &(lo->bbatt_list.list[bb_offset]); |
| 855 | rfatt = &(lo->rfatt_list.list[rf_offset]); |
| 856 | |
| 857 | cal = b43_calibrate_lo_setting(dev, bbatt, rfatt); |
| 858 | if (!cal) { |
| 859 | b43warn(dev->wl, "LO: Could not " |
| 860 | "calibrate DC table entry\n"); |
| 861 | continue; |
| 862 | } |
| 863 | /*FIXME: Is Q really in the low nibble? */ |
| 864 | val = (u8)(cal->ctl.q); |
| 865 | val |= ((u8)(cal->ctl.i)) << 4; |
| 866 | kfree(cal); |
| 867 | |
| 868 | /* Get the index into the hardware DC LT. */ |
| 869 | idx = i / 2; |
| 870 | /* Change the table in memory. */ |
| 871 | if (i % 2) { |
| 872 | /* Change the high byte. */ |
| 873 | lo->dc_lt[idx] = (lo->dc_lt[idx] & 0x00FF) |
| 874 | | ((val & 0x00FF) << 8); |
| 875 | } else { |
| 876 | /* Change the low byte. */ |
| 877 | lo->dc_lt[idx] = (lo->dc_lt[idx] & 0xFF00) |
| 878 | | (val & 0x00FF); |
| 879 | } |
| 880 | table_changed = 1; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 881 | } |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 882 | if (table_changed) { |
| 883 | /* The table changed in memory. Update the hardware table. */ |
| 884 | for (i = 0; i < B43_DC_LT_SIZE; i++) |
| 885 | b43_phy_write(dev, 0x3A0 + i, lo->dc_lt[i]); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 886 | } |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 887 | b43_mac_enable(dev); |
| 888 | } |
| 889 | |
| 890 | /* Fixup the RF attenuation value for the case where we are |
| 891 | * using the PAD mixer. */ |
| 892 | static inline void b43_lo_fixup_rfatt(struct b43_rfatt *rf) |
| 893 | { |
| 894 | if (!rf->with_padmix) |
| 895 | return; |
| 896 | if ((rf->att != 1) && (rf->att != 2) && (rf->att != 3)) |
| 897 | rf->att = 4; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 898 | } |
| 899 | |
| 900 | void b43_lo_g_adjust(struct b43_wldev *dev) |
| 901 | { |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 902 | struct b43_phy_g *gphy = dev->phy.g; |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 903 | struct b43_lo_calib *cal; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 904 | struct b43_rfatt rf; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 905 | |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 906 | memcpy(&rf, &gphy->rfatt, sizeof(rf)); |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 907 | b43_lo_fixup_rfatt(&rf); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 908 | |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 909 | cal = b43_get_calib_lo_settings(dev, &gphy->bbatt, &rf); |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 910 | if (!cal) |
| 911 | return; |
| 912 | b43_lo_write(dev, &cal->ctl); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 913 | } |
| 914 | |
| 915 | void b43_lo_g_adjust_to(struct b43_wldev *dev, |
| 916 | u16 rfatt, u16 bbatt, u16 tx_control) |
| 917 | { |
| 918 | struct b43_rfatt rf; |
| 919 | struct b43_bbatt bb; |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 920 | struct b43_lo_calib *cal; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 921 | |
| 922 | memset(&rf, 0, sizeof(rf)); |
| 923 | memset(&bb, 0, sizeof(bb)); |
| 924 | rf.att = rfatt; |
| 925 | bb.att = bbatt; |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 926 | b43_lo_fixup_rfatt(&rf); |
| 927 | cal = b43_get_calib_lo_settings(dev, &bb, &rf); |
| 928 | if (!cal) |
| 929 | return; |
| 930 | b43_lo_write(dev, &cal->ctl); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 931 | } |
| 932 | |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 933 | /* Periodic LO maintanance work */ |
| 934 | void b43_lo_g_maintanance_work(struct b43_wldev *dev) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 935 | { |
| 936 | struct b43_phy *phy = &dev->phy; |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 937 | struct b43_phy_g *gphy = phy->g; |
| 938 | struct b43_txpower_lo_control *lo = gphy->lo_control; |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 939 | unsigned long now; |
| 940 | unsigned long expire; |
| 941 | struct b43_lo_calib *cal, *tmp; |
| 942 | bool current_item_expired = 0; |
| 943 | bool hwpctl; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 944 | |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 945 | if (!lo) |
| 946 | return; |
| 947 | now = jiffies; |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 948 | hwpctl = b43_has_hardware_pctl(dev); |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 949 | |
| 950 | if (hwpctl) { |
| 951 | /* Read the power vector and update it, if needed. */ |
| 952 | expire = now - B43_LO_PWRVEC_EXPIRE; |
| 953 | if (time_before(lo->pwr_vec_read_time, expire)) { |
| 954 | lo_read_power_vector(dev); |
| 955 | b43_gphy_dc_lt_init(dev, 0); |
| 956 | } |
| 957 | //FIXME Recalc the whole DC table from time to time? |
| 958 | } |
| 959 | |
| 960 | if (hwpctl) |
| 961 | return; |
| 962 | /* Search for expired LO settings. Remove them. |
| 963 | * Recalibrate the current setting, if expired. */ |
| 964 | expire = now - B43_LO_CALIB_EXPIRE; |
| 965 | list_for_each_entry_safe(cal, tmp, &lo->calib_list, list) { |
| 966 | if (!time_before(cal->calib_time, expire)) |
| 967 | continue; |
| 968 | /* This item expired. */ |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 969 | if (b43_compare_bbatt(&cal->bbatt, &gphy->bbatt) && |
| 970 | b43_compare_rfatt(&cal->rfatt, &gphy->rfatt)) { |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 971 | B43_WARN_ON(current_item_expired); |
| 972 | current_item_expired = 1; |
| 973 | } |
| 974 | if (b43_debug(dev, B43_DBG_LO)) { |
| 975 | b43dbg(dev->wl, "LO: Item BB(%u), RF(%u,%u), " |
| 976 | "I=%d, Q=%d expired\n", |
| 977 | cal->bbatt.att, cal->rfatt.att, |
| 978 | cal->rfatt.with_padmix, |
| 979 | cal->ctl.i, cal->ctl.q); |
| 980 | } |
| 981 | list_del(&cal->list); |
| 982 | kfree(cal); |
| 983 | } |
| 984 | if (current_item_expired || unlikely(list_empty(&lo->calib_list))) { |
| 985 | /* Recalibrate currently used LO setting. */ |
| 986 | if (b43_debug(dev, B43_DBG_LO)) |
| 987 | b43dbg(dev->wl, "LO: Recalibrating current LO setting\n"); |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 988 | cal = b43_calibrate_lo_setting(dev, &gphy->bbatt, &gphy->rfatt); |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 989 | if (cal) { |
| 990 | list_add(&cal->list, &lo->calib_list); |
| 991 | b43_lo_write(dev, &cal->ctl); |
| 992 | } else |
| 993 | b43warn(dev->wl, "Failed to recalibrate current LO setting\n"); |
| 994 | } |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 995 | } |
| 996 | |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 997 | void b43_lo_g_cleanup(struct b43_wldev *dev) |
| 998 | { |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 999 | struct b43_txpower_lo_control *lo = dev->phy.g->lo_control; |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 1000 | struct b43_lo_calib *cal, *tmp; |
| 1001 | |
| 1002 | if (!lo) |
| 1003 | return; |
| 1004 | list_for_each_entry_safe(cal, tmp, &lo->calib_list, list) { |
| 1005 | list_del(&cal->list); |
| 1006 | kfree(cal); |
| 1007 | } |
| 1008 | } |
| 1009 | |
| 1010 | /* LO Initialization */ |
| 1011 | void b43_lo_g_init(struct b43_wldev *dev) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1012 | { |
Michael Buesch | ef1a628 | 2008-08-27 18:53:02 +0200 | [diff] [blame] | 1013 | if (b43_has_hardware_pctl(dev)) { |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 1014 | lo_read_power_vector(dev); |
| 1015 | b43_gphy_dc_lt_init(dev, 1); |
| 1016 | } |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1017 | } |