| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Michael Buesch | 18019 | 98.25% | 13 | 38.24% |
| Rafał Miłecki | 115 | 0.63% | 6 | 17.65% |
| Guenter Roeck | 99 | 0.54% | 1 | 2.94% |
| Gábor Stefanik | 59 | 0.32% | 3 | 8.82% |
| Rusty Russell | 17 | 0.09% | 1 | 2.94% |
| Hannes Eder | 8 | 0.04% | 1 | 2.94% |
| Alexander A. Klimov | 6 | 0.03% | 1 | 2.94% |
| Colin Ian King | 4 | 0.02% | 1 | 2.94% |
| Johannes Berg | 4 | 0.02% | 1 | 2.94% |
| Tejun Heo | 3 | 0.02% | 1 | 2.94% |
| Thomas Gleixner | 2 | 0.01% | 1 | 2.94% |
| Dan Carpenter | 1 | 0.01% | 1 | 2.94% |
| Nik Nyby | 1 | 0.01% | 1 | 2.94% |
| Uwe Kleine-König | 1 | 0.01% | 1 | 2.94% |
| John W. Linville | 1 | 0.01% | 1 | 2.94% |
| Total | 18340 | 34 |
// SPDX-License-Identifier: GPL-2.0-or-later /* Broadcom B43 wireless driver IEEE 802.11g PHY driver Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>, Copyright (c) 2005-2007 Stefano Brivio <stefano.brivio@polimi.it> Copyright (c) 2005-2008 Michael Buesch <m@bues.ch> Copyright (c) 2005, 2006 Danny van Dyk <kugelfang@gentoo.org> Copyright (c) 2005, 2006 Andreas Jaggi <andreas.jaggi@waterwave.ch> */ #include "b43.h" #include "phy_g.h" #include "phy_common.h" #include "lo.h" #include "main.h" #include "wa.h" #include <linux/bitrev.h> #include <linux/slab.h> static const s8 b43_tssi2dbm_g_table[] = { 77, 77, 77, 76, 76, 76, 75, 75, 74, 74, 73, 73, 73, 72, 72, 71, 71, 70, 70, 69, 68, 68, 67, 67, 66, 65, 65, 64, 63, 63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52, 50, 49, 47, 45, 43, 40, 37, 33, 28, 22, 14, 5, -7, -20, -20, -20, -20, -20, -20, -20, -20, -20, -20, }; static const u8 b43_radio_channel_codes_bg[] = { 12, 17, 22, 27, 32, 37, 42, 47, 52, 57, 62, 67, 72, 84, }; static void b43_calc_nrssi_threshold(struct b43_wldev *dev); #define bitrev4(tmp) (bitrev8(tmp) >> 4) /* Get the freq, as it has to be written to the device. */ static inline u16 channel2freq_bg(u8 channel) { B43_WARN_ON(!(channel >= 1 && channel <= 14)); return b43_radio_channel_codes_bg[channel - 1]; } static void generate_rfatt_list(struct b43_wldev *dev, struct b43_rfatt_list *list) { struct b43_phy *phy = &dev->phy; /* APHY.rev < 5 || GPHY.rev < 6 */ static const struct b43_rfatt rfatt_0[] = { {.att = 3,.with_padmix = 0,}, {.att = 1,.with_padmix = 0,}, {.att = 5,.with_padmix = 0,}, {.att = 7,.with_padmix = 0,}, {.att = 9,.with_padmix = 0,}, {.att = 2,.with_padmix = 0,}, {.att = 0,.with_padmix = 0,}, {.att = 4,.with_padmix = 0,}, {.att = 6,.with_padmix = 0,}, {.att = 8,.with_padmix = 0,}, {.att = 1,.with_padmix = 1,}, {.att = 2,.with_padmix = 1,}, {.att = 3,.with_padmix = 1,}, {.att = 4,.with_padmix = 1,}, }; /* Radio.rev == 8 && Radio.version == 0x2050 */ static const struct b43_rfatt rfatt_1[] = { {.att = 2,.with_padmix = 1,}, {.att = 4,.with_padmix = 1,}, {.att = 6,.with_padmix = 1,}, {.att = 8,.with_padmix = 1,}, {.att = 10,.with_padmix = 1,}, {.att = 12,.with_padmix = 1,}, {.att = 14,.with_padmix = 1,}, }; /* Otherwise */ static const struct b43_rfatt rfatt_2[] = { {.att = 0,.with_padmix = 1,}, {.att = 2,.with_padmix = 1,}, {.att = 4,.with_padmix = 1,}, {.att = 6,.with_padmix = 1,}, {.att = 8,.with_padmix = 1,}, {.att = 9,.with_padmix = 1,}, {.att = 9,.with_padmix = 1,}, }; if (!b43_has_hardware_pctl(dev)) { /* Software pctl */ list->list = rfatt_0; list->len = ARRAY_SIZE(rfatt_0); list->min_val = 0; list->max_val = 9; return; } if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) { /* Hardware pctl */ list->list = rfatt_1; list->len = ARRAY_SIZE(rfatt_1); list->min_val = 0; list->max_val = 14; return; } /* Hardware pctl */ list->list = rfatt_2; list->len = ARRAY_SIZE(rfatt_2); list->min_val = 0; list->max_val = 9; } static void generate_bbatt_list(struct b43_wldev *dev, struct b43_bbatt_list *list) { static const struct b43_bbatt bbatt_0[] = { {.att = 0,}, {.att = 1,}, {.att = 2,}, {.att = 3,}, {.att = 4,}, {.att = 5,}, {.att = 6,}, {.att = 7,}, {.att = 8,}, }; list->list = bbatt_0; list->len = ARRAY_SIZE(bbatt_0); list->min_val = 0; list->max_val = 8; } static void b43_shm_clear_tssi(struct b43_wldev *dev) { b43_shm_write16(dev, B43_SHM_SHARED, 0x0058, 0x7F7F); b43_shm_write16(dev, B43_SHM_SHARED, 0x005a, 0x7F7F); b43_shm_write16(dev, B43_SHM_SHARED, 0x0070, 0x7F7F); b43_shm_write16(dev, B43_SHM_SHARED, 0x0072, 0x7F7F); } /* Synthetic PU workaround */ static void b43_synth_pu_workaround(struct b43_wldev *dev, u8 channel) { struct b43_phy *phy = &dev->phy; might_sleep(); if (phy->radio_ver != 0x2050 || phy->radio_rev >= 6) { /* We do not need the workaround. */ return; } if (channel <= 10) { b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(channel + 4)); } else { b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(1)); } msleep(1); b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(channel)); } /* Set the baseband attenuation value on chip. */ void b43_gphy_set_baseband_attenuation(struct b43_wldev *dev, u16 baseband_attenuation) { struct b43_phy *phy = &dev->phy; if (phy->analog == 0) { b43_write16(dev, B43_MMIO_PHY0, (b43_read16(dev, B43_MMIO_PHY0) & 0xFFF0) | baseband_attenuation); } else if (phy->analog > 1) { b43_phy_maskset(dev, B43_PHY_DACCTL, 0xFFC3, (baseband_attenuation << 2)); } else { b43_phy_maskset(dev, B43_PHY_DACCTL, 0xFF87, (baseband_attenuation << 3)); } } /* Adjust the transmission power output (G-PHY) */ static void b43_set_txpower_g(struct b43_wldev *dev, const struct b43_bbatt *bbatt, const struct b43_rfatt *rfatt, u8 tx_control) { struct b43_phy *phy = &dev->phy; struct b43_phy_g *gphy = phy->g; struct b43_txpower_lo_control *lo = gphy->lo_control; u16 bb, rf; u16 tx_bias, tx_magn; bb = bbatt->att; rf = rfatt->att; tx_bias = lo->tx_bias; tx_magn = lo->tx_magn; if (unlikely(tx_bias == 0xFF)) tx_bias = 0; /* Save the values for later. Use memmove, because it's valid * to pass &gphy->rfatt as rfatt pointer argument. Same for bbatt. */ gphy->tx_control = tx_control; memmove(&gphy->rfatt, rfatt, sizeof(*rfatt)); gphy->rfatt.with_padmix = !!(tx_control & B43_TXCTL_TXMIX); memmove(&gphy->bbatt, bbatt, sizeof(*bbatt)); if (b43_debug(dev, B43_DBG_XMITPOWER)) { b43dbg(dev->wl, "Tuning TX-power to bbatt(%u), " "rfatt(%u), tx_control(0x%02X), " "tx_bias(0x%02X), tx_magn(0x%02X)\n", bb, rf, tx_control, tx_bias, tx_magn); } b43_gphy_set_baseband_attenuation(dev, bb); b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_RFATT, rf); if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) { b43_radio_write16(dev, 0x43, (rf & 0x000F) | (tx_control & 0x0070)); } else { b43_radio_maskset(dev, 0x43, 0xFFF0, (rf & 0x000F)); b43_radio_maskset(dev, 0x52, ~0x0070, (tx_control & 0x0070)); } if (has_tx_magnification(phy)) { b43_radio_write16(dev, 0x52, tx_magn | tx_bias); } else { b43_radio_maskset(dev, 0x52, 0xFFF0, (tx_bias & 0x000F)); } b43_lo_g_adjust(dev); } /* GPHY_TSSI_Power_Lookup_Table_Init */ static void b43_gphy_tssi_power_lt_init(struct b43_wldev *dev) { struct b43_phy_g *gphy = dev->phy.g; int i; u16 value; for (i = 0; i < 32; i++) b43_ofdmtab_write16(dev, 0x3C20, i, gphy->tssi2dbm[i]); for (i = 32; i < 64; i++) b43_ofdmtab_write16(dev, 0x3C00, i - 32, gphy->tssi2dbm[i]); for (i = 0; i < 64; i += 2) { value = (u16) gphy->tssi2dbm[i]; value |= ((u16) gphy->tssi2dbm[i + 1]) << 8; b43_phy_write(dev, 0x380 + (i / 2), value); } } /* GPHY_Gain_Lookup_Table_Init */ static void b43_gphy_gain_lt_init(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; struct b43_phy_g *gphy = phy->g; struct b43_txpower_lo_control *lo = gphy->lo_control; u16 nr_written = 0; u16 tmp; u8 rf, bb; for (rf = 0; rf < lo->rfatt_list.len; rf++) { for (bb = 0; bb < lo->bbatt_list.len; bb++) { if (nr_written >= 0x40) return; tmp = lo->bbatt_list.list[bb].att; tmp <<= 8; if (phy->radio_rev == 8) tmp |= 0x50; else tmp |= 0x40; tmp |= lo->rfatt_list.list[rf].att; b43_phy_write(dev, 0x3C0 + nr_written, tmp); nr_written++; } } } static void b43_set_all_gains(struct b43_wldev *dev, s16 first, s16 second, s16 third) { struct b43_phy *phy = &dev->phy; u16 i; u16 start = 0x08, end = 0x18; u16 tmp; u16 table; if (phy->rev <= 1) { start = 0x10; end = 0x20; } table = B43_OFDMTAB_GAINX; if (phy->rev <= 1) table = B43_OFDMTAB_GAINX_R1; for (i = 0; i < 4; i++) b43_ofdmtab_write16(dev, table, i, first); for (i = start; i < end; i++) b43_ofdmtab_write16(dev, table, i, second); if (third != -1) { tmp = ((u16) third << 14) | ((u16) third << 6); b43_phy_maskset(dev, 0x04A0, 0xBFBF, tmp); b43_phy_maskset(dev, 0x04A1, 0xBFBF, tmp); b43_phy_maskset(dev, 0x04A2, 0xBFBF, tmp); } b43_dummy_transmission(dev, false, true); } static void b43_set_original_gains(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; u16 i, tmp; u16 table; u16 start = 0x0008, end = 0x0018; if (phy->rev <= 1) { start = 0x0010; end = 0x0020; } table = B43_OFDMTAB_GAINX; if (phy->rev <= 1) table = B43_OFDMTAB_GAINX_R1; for (i = 0; i < 4; i++) { tmp = (i & 0xFFFC); tmp |= (i & 0x0001) << 1; tmp |= (i & 0x0002) >> 1; b43_ofdmtab_write16(dev, table, i, tmp); } for (i = start; i < end; i++) b43_ofdmtab_write16(dev, table, i, i - start); b43_phy_maskset(dev, 0x04A0, 0xBFBF, 0x4040); b43_phy_maskset(dev, 0x04A1, 0xBFBF, 0x4040); b43_phy_maskset(dev, 0x04A2, 0xBFBF, 0x4000); b43_dummy_transmission(dev, false, true); } /* https://bcm-specs.sipsolutions.net/NRSSILookupTable */ static void b43_nrssi_hw_write(struct b43_wldev *dev, u16 offset, s16 val) { b43_phy_write(dev, B43_PHY_NRSSILT_CTRL, offset); b43_phy_write(dev, B43_PHY_NRSSILT_DATA, (u16) val); } /* https://bcm-specs.sipsolutions.net/NRSSILookupTable */ static s16 b43_nrssi_hw_read(struct b43_wldev *dev, u16 offset) { u16 val; b43_phy_write(dev, B43_PHY_NRSSILT_CTRL, offset); val = b43_phy_read(dev, B43_PHY_NRSSILT_DATA); return (s16) val; } /* https://bcm-specs.sipsolutions.net/NRSSILookupTable */ static void b43_nrssi_hw_update(struct b43_wldev *dev, u16 val) { u16 i; s16 tmp; for (i = 0; i < 64; i++) { tmp = b43_nrssi_hw_read(dev, i); tmp -= val; tmp = clamp_val(tmp, -32, 31); b43_nrssi_hw_write(dev, i, tmp); } } /* https://bcm-specs.sipsolutions.net/NRSSILookupTable */ static void b43_nrssi_mem_update(struct b43_wldev *dev) { struct b43_phy_g *gphy = dev->phy.g; s16 i, delta; s32 tmp; delta = 0x1F - gphy->nrssi[0]; for (i = 0; i < 64; i++) { tmp = (i - delta) * gphy->nrssislope; tmp /= 0x10000; tmp += 0x3A; tmp = clamp_val(tmp, 0, 0x3F); gphy->nrssi_lt[i] = tmp; } } static void b43_calc_nrssi_offset(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; u16 backup[20] = { 0 }; s16 v47F; u16 i; u16 saved = 0xFFFF; backup[0] = b43_phy_read(dev, 0x0001); backup[1] = b43_phy_read(dev, 0x0811); backup[2] = b43_phy_read(dev, 0x0812); if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */ backup[3] = b43_phy_read(dev, 0x0814); backup[4] = b43_phy_read(dev, 0x0815); } backup[5] = b43_phy_read(dev, 0x005A); backup[6] = b43_phy_read(dev, 0x0059); backup[7] = b43_phy_read(dev, 0x0058); backup[8] = b43_phy_read(dev, 0x000A); backup[9] = b43_phy_read(dev, 0x0003); backup[10] = b43_radio_read16(dev, 0x007A); backup[11] = b43_radio_read16(dev, 0x0043); b43_phy_mask(dev, 0x0429, 0x7FFF); b43_phy_maskset(dev, 0x0001, 0x3FFF, 0x4000); b43_phy_set(dev, 0x0811, 0x000C); b43_phy_maskset(dev, 0x0812, 0xFFF3, 0x0004); b43_phy_mask(dev, 0x0802, ~(0x1 | 0x2)); if (phy->rev >= 6) { backup[12] = b43_phy_read(dev, 0x002E); backup[13] = b43_phy_read(dev, 0x002F); backup[14] = b43_phy_read(dev, 0x080F); backup[15] = b43_phy_read(dev, 0x0810); backup[16] = b43_phy_read(dev, 0x0801); backup[17] = b43_phy_read(dev, 0x0060); backup[18] = b43_phy_read(dev, 0x0014); backup[19] = b43_phy_read(dev, 0x0478); b43_phy_write(dev, 0x002E, 0); b43_phy_write(dev, 0x002F, 0); b43_phy_write(dev, 0x080F, 0); b43_phy_write(dev, 0x0810, 0); b43_phy_set(dev, 0x0478, 0x0100); b43_phy_set(dev, 0x0801, 0x0040); b43_phy_set(dev, 0x0060, 0x0040); b43_phy_set(dev, 0x0014, 0x0200); } b43_radio_set(dev, 0x007A, 0x0070); b43_radio_set(dev, 0x007A, 0x0080); udelay(30); v47F = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F); if (v47F >= 0x20) v47F -= 0x40; if (v47F == 31) { for (i = 7; i >= 4; i--) { b43_radio_write16(dev, 0x007B, i); udelay(20); v47F = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F); if (v47F >= 0x20) v47F -= 0x40; if (v47F < 31 && saved == 0xFFFF) saved = i; } if (saved == 0xFFFF) saved = 4; } else { b43_radio_mask(dev, 0x007A, 0x007F); if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */ b43_phy_set(dev, 0x0814, 0x0001); b43_phy_mask(dev, 0x0815, 0xFFFE); } b43_phy_set(dev, 0x0811, 0x000C); b43_phy_set(dev, 0x0812, 0x000C); b43_phy_set(dev, 0x0811, 0x0030); b43_phy_set(dev, 0x0812, 0x0030); b43_phy_write(dev, 0x005A, 0x0480); b43_phy_write(dev, 0x0059, 0x0810); b43_phy_write(dev, 0x0058, 0x000D); if (phy->rev == 0) { b43_phy_write(dev, 0x0003, 0x0122); } else { b43_phy_set(dev, 0x000A, 0x2000); } if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */ b43_phy_set(dev, 0x0814, 0x0004); b43_phy_mask(dev, 0x0815, 0xFFFB); } b43_phy_maskset(dev, 0x0003, 0xFF9F, 0x0040); b43_radio_set(dev, 0x007A, 0x000F); b43_set_all_gains(dev, 3, 0, 1); b43_radio_maskset(dev, 0x0043, 0x00F0, 0x000F); udelay(30); v47F = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F); if (v47F >= 0x20) v47F -= 0x40; if (v47F == -32) { for (i = 0; i < 4; i++) { b43_radio_write16(dev, 0x007B, i); udelay(20); v47F = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F); if (v47F >= 0x20) v47F -= 0x40; if (v47F > -31 && saved == 0xFFFF) saved = i; } if (saved == 0xFFFF) saved = 3; } else saved = 0; } b43_radio_write16(dev, 0x007B, saved); if (phy->rev >= 6) { b43_phy_write(dev, 0x002E, backup[12]); b43_phy_write(dev, 0x002F, backup[13]); b43_phy_write(dev, 0x080F, backup[14]); b43_phy_write(dev, 0x0810, backup[15]); } if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */ b43_phy_write(dev, 0x0814, backup[3]); b43_phy_write(dev, 0x0815, backup[4]); } b43_phy_write(dev, 0x005A, backup[5]); b43_phy_write(dev, 0x0059, backup[6]); b43_phy_write(dev, 0x0058, backup[7]); b43_phy_write(dev, 0x000A, backup[8]); b43_phy_write(dev, 0x0003, backup[9]); b43_radio_write16(dev, 0x0043, backup[11]); b43_radio_write16(dev, 0x007A, backup[10]); b43_phy_write(dev, 0x0802, b43_phy_read(dev, 0x0802) | 0x1 | 0x2); b43_phy_set(dev, 0x0429, 0x8000); b43_set_original_gains(dev); if (phy->rev >= 6) { b43_phy_write(dev, 0x0801, backup[16]); b43_phy_write(dev, 0x0060, backup[17]); b43_phy_write(dev, 0x0014, backup[18]); b43_phy_write(dev, 0x0478, backup[19]); } b43_phy_write(dev, 0x0001, backup[0]); b43_phy_write(dev, 0x0812, backup[2]); b43_phy_write(dev, 0x0811, backup[1]); } static void b43_calc_nrssi_slope(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; struct b43_phy_g *gphy = phy->g; u16 backup[18] = { 0 }; u16 tmp; s16 nrssi0, nrssi1; B43_WARN_ON(phy->type != B43_PHYTYPE_G); if (phy->radio_rev >= 9) return; if (phy->radio_rev == 8) b43_calc_nrssi_offset(dev); b43_phy_mask(dev, B43_PHY_G_CRS, 0x7FFF); b43_phy_mask(dev, 0x0802, 0xFFFC); backup[7] = b43_read16(dev, 0x03E2); b43_write16(dev, 0x03E2, b43_read16(dev, 0x03E2) | 0x8000); backup[0] = b43_radio_read16(dev, 0x007A); backup[1] = b43_radio_read16(dev, 0x0052); backup[2] = b43_radio_read16(dev, 0x0043); backup[3] = b43_phy_read(dev, 0x0015); backup[4] = b43_phy_read(dev, 0x005A); backup[5] = b43_phy_read(dev, 0x0059); backup[6] = b43_phy_read(dev, 0x0058); backup[8] = b43_read16(dev, 0x03E6); backup[9] = b43_read16(dev, B43_MMIO_CHANNEL_EXT); if (phy->rev >= 3) { backup[10] = b43_phy_read(dev, 0x002E); backup[11] = b43_phy_read(dev, 0x002F); backup[12] = b43_phy_read(dev, 0x080F); backup[13] = b43_phy_read(dev, B43_PHY_G_LO_CONTROL); backup[14] = b43_phy_read(dev, 0x0801); backup[15] = b43_phy_read(dev, 0x0060); backup[16] = b43_phy_read(dev, 0x0014); backup[17] = b43_phy_read(dev, 0x0478); b43_phy_write(dev, 0x002E, 0); b43_phy_write(dev, B43_PHY_G_LO_CONTROL, 0); switch (phy->rev) { case 4: case 6: case 7: b43_phy_set(dev, 0x0478, 0x0100); b43_phy_set(dev, 0x0801, 0x0040); break; case 3: case 5: b43_phy_mask(dev, 0x0801, 0xFFBF); break; } b43_phy_set(dev, 0x0060, 0x0040); b43_phy_set(dev, 0x0014, 0x0200); } b43_radio_set(dev, 0x007A, 0x0070); b43_set_all_gains(dev, 0, 8, 0); b43_radio_mask(dev, 0x007A, 0x00F7); if (phy->rev >= 2) { b43_phy_maskset(dev, 0x0811, 0xFFCF, 0x0030); b43_phy_maskset(dev, 0x0812, 0xFFCF, 0x0010); } b43_radio_set(dev, 0x007A, 0x0080); udelay(20); nrssi0 = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F); if (nrssi0 >= 0x0020) nrssi0 -= 0x0040; b43_radio_mask(dev, 0x007A, 0x007F); if (phy->rev >= 2) { b43_phy_maskset(dev, 0x0003, 0xFF9F, 0x0040); } b43_write16(dev, B43_MMIO_CHANNEL_EXT, b43_read16(dev, B43_MMIO_CHANNEL_EXT) | 0x2000); b43_radio_set(dev, 0x007A, 0x000F); b43_phy_write(dev, 0x0015, 0xF330); if (phy->rev >= 2) { b43_phy_maskset(dev, 0x0812, 0xFFCF, 0x0020); b43_phy_maskset(dev, 0x0811, 0xFFCF, 0x0020); } b43_set_all_gains(dev, 3, 0, 1); if (phy->radio_rev == 8) { b43_radio_write16(dev, 0x0043, 0x001F); } else { tmp = b43_radio_read16(dev, 0x0052) & 0xFF0F; b43_radio_write16(dev, 0x0052, tmp | 0x0060); tmp = b43_radio_read16(dev, 0x0043) & 0xFFF0; b43_radio_write16(dev, 0x0043, tmp | 0x0009); } b43_phy_write(dev, 0x005A, 0x0480); b43_phy_write(dev, 0x0059, 0x0810); b43_phy_write(dev, 0x0058, 0x000D); udelay(20); nrssi1 = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F); if (nrssi1 >= 0x0020) nrssi1 -= 0x0040; if (nrssi0 == nrssi1) gphy->nrssislope = 0x00010000; else gphy->nrssislope = 0x00400000 / (nrssi0 - nrssi1); if (nrssi0 >= -4) { gphy->nrssi[0] = nrssi1; gphy->nrssi[1] = nrssi0; } if (phy->rev >= 3) { b43_phy_write(dev, 0x002E, backup[10]); b43_phy_write(dev, 0x002F, backup[11]); b43_phy_write(dev, 0x080F, backup[12]); b43_phy_write(dev, B43_PHY_G_LO_CONTROL, backup[13]); } if (phy->rev >= 2) { b43_phy_mask(dev, 0x0812, 0xFFCF); b43_phy_mask(dev, 0x0811, 0xFFCF); } b43_radio_write16(dev, 0x007A, backup[0]); b43_radio_write16(dev, 0x0052, backup[1]); b43_radio_write16(dev, 0x0043, backup[2]); b43_write16(dev, 0x03E2, backup[7]); b43_write16(dev, 0x03E6, backup[8]); b43_write16(dev, B43_MMIO_CHANNEL_EXT, backup[9]); b43_phy_write(dev, 0x0015, backup[3]); b43_phy_write(dev, 0x005A, backup[4]); b43_phy_write(dev, 0x0059, backup[5]); b43_phy_write(dev, 0x0058, backup[6]); b43_synth_pu_workaround(dev, phy->channel); b43_phy_set(dev, 0x0802, (0x0001 | 0x0002)); b43_set_original_gains(dev); b43_phy_set(dev, B43_PHY_G_CRS, 0x8000); if (phy->rev >= 3) { b43_phy_write(dev, 0x0801, backup[14]); b43_phy_write(dev, 0x0060, backup[15]); b43_phy_write(dev, 0x0014, backup[16]); b43_phy_write(dev, 0x0478, backup[17]); } b43_nrssi_mem_update(dev); b43_calc_nrssi_threshold(dev); } static void b43_calc_nrssi_threshold(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; struct b43_phy_g *gphy = phy->g; s32 a, b; s16 tmp16; u16 tmp_u16; B43_WARN_ON(phy->type != B43_PHYTYPE_G); if (!phy->gmode || !(dev->dev->bus_sprom->boardflags_lo & B43_BFL_RSSI)) { tmp16 = b43_nrssi_hw_read(dev, 0x20); if (tmp16 >= 0x20) tmp16 -= 0x40; if (tmp16 < 3) { b43_phy_maskset(dev, 0x048A, 0xF000, 0x09EB); } else { b43_phy_maskset(dev, 0x048A, 0xF000, 0x0AED); } } else { if (gphy->interfmode == B43_INTERFMODE_NONWLAN) { a = 0xE; b = 0xA; } else if (!gphy->aci_wlan_automatic && gphy->aci_enable) { a = 0x13; b = 0x12; } else { a = 0xE; b = 0x11; } a = a * (gphy->nrssi[1] - gphy->nrssi[0]); a += (gphy->nrssi[0] << 6); if (a < 32) a += 31; else a += 32; a = a >> 6; a = clamp_val(a, -31, 31); b = b * (gphy->nrssi[1] - gphy->nrssi[0]); b += (gphy->nrssi[0] << 6); if (b < 32) b += 31; else b += 32; b = b >> 6; b = clamp_val(b, -31, 31); tmp_u16 = b43_phy_read(dev, 0x048A) & 0xF000; tmp_u16 |= ((u32) b & 0x0000003F); tmp_u16 |= (((u32) a & 0x0000003F) << 6); b43_phy_write(dev, 0x048A, tmp_u16); } } /* Stack implementation to save/restore values from the * interference mitigation code. * It is save to restore values in random order. */ static void _stack_save(u32 *_stackptr, size_t *stackidx, u8 id, u16 offset, u16 value) { u32 *stackptr = &(_stackptr[*stackidx]); B43_WARN_ON(offset & 0xF000); B43_WARN_ON(id & 0xF0); *stackptr = offset; *stackptr |= ((u32) id) << 12; *stackptr |= ((u32) value) << 16; (*stackidx)++; B43_WARN_ON(*stackidx >= B43_INTERFSTACK_SIZE); } static u16 _stack_restore(u32 *stackptr, u8 id, u16 offset) { size_t i; B43_WARN_ON(offset & 0xF000); B43_WARN_ON(id & 0xF0); for (i = 0; i < B43_INTERFSTACK_SIZE; i++, stackptr++) { if ((*stackptr & 0x00000FFF) != offset) continue; if (((*stackptr & 0x0000F000) >> 12) != id) continue; return ((*stackptr & 0xFFFF0000) >> 16); } B43_WARN_ON(1); return 0; } #define phy_stacksave(offset) \ do { \ _stack_save(stack, &stackidx, 0x1, (offset), \ b43_phy_read(dev, (offset))); \ } while (0) #define phy_stackrestore(offset) \ do { \ b43_phy_write(dev, (offset), \ _stack_restore(stack, 0x1, \ (offset))); \ } while (0) #define radio_stacksave(offset) \ do { \ _stack_save(stack, &stackidx, 0x2, (offset), \ b43_radio_read16(dev, (offset))); \ } while (0) #define radio_stackrestore(offset) \ do { \ b43_radio_write16(dev, (offset), \ _stack_restore(stack, 0x2, \ (offset))); \ } while (0) #define ofdmtab_stacksave(table, offset) \ do { \ _stack_save(stack, &stackidx, 0x3, (offset)|(table), \ b43_ofdmtab_read16(dev, (table), (offset))); \ } while (0) #define ofdmtab_stackrestore(table, offset) \ do { \ b43_ofdmtab_write16(dev, (table), (offset), \ _stack_restore(stack, 0x3, \ (offset)|(table))); \ } while (0) static void b43_radio_interference_mitigation_enable(struct b43_wldev *dev, int mode) { struct b43_phy *phy = &dev->phy; struct b43_phy_g *gphy = phy->g; u16 tmp, flipped; size_t stackidx = 0; u32 *stack = gphy->interfstack; switch (mode) { case B43_INTERFMODE_NONWLAN: if (phy->rev != 1) { b43_phy_set(dev, 0x042B, 0x0800); b43_phy_mask(dev, B43_PHY_G_CRS, ~0x4000); break; } radio_stacksave(0x0078); tmp = (b43_radio_read16(dev, 0x0078) & 0x001E); B43_WARN_ON(tmp > 15); flipped = bitrev4(tmp); if (flipped < 10 && flipped >= 8) flipped = 7; else if (flipped >= 10) flipped -= 3; flipped = (bitrev4(flipped) << 1) | 0x0020; b43_radio_write16(dev, 0x0078, flipped); b43_calc_nrssi_threshold(dev); phy_stacksave(0x0406); b43_phy_write(dev, 0x0406, 0x7E28); b43_phy_set(dev, 0x042B, 0x0800); b43_phy_set(dev, B43_PHY_RADIO_BITFIELD, 0x1000); phy_stacksave(0x04A0); b43_phy_maskset(dev, 0x04A0, 0xC0C0, 0x0008); phy_stacksave(0x04A1); b43_phy_maskset(dev, 0x04A1, 0xC0C0, 0x0605); phy_stacksave(0x04A2); b43_phy_maskset(dev, 0x04A2, 0xC0C0, 0x0204); phy_stacksave(0x04A8); b43_phy_maskset(dev, 0x04A8, 0xC0C0, 0x0803); phy_stacksave(0x04AB); b43_phy_maskset(dev, 0x04AB, 0xC0C0, 0x0605); phy_stacksave(0x04A7); b43_phy_write(dev, 0x04A7, 0x0002); phy_stacksave(0x04A3); b43_phy_write(dev, 0x04A3, 0x287A); phy_stacksave(0x04A9); b43_phy_write(dev, 0x04A9, 0x2027); phy_stacksave(0x0493); b43_phy_write(dev, 0x0493, 0x32F5); phy_stacksave(0x04AA); b43_phy_write(dev, 0x04AA, 0x2027); phy_stacksave(0x04AC); b43_phy_write(dev, 0x04AC, 0x32F5); break; case B43_INTERFMODE_MANUALWLAN: if (b43_phy_read(dev, 0x0033) & 0x0800) break; gphy->aci_enable = true; phy_stacksave(B43_PHY_RADIO_BITFIELD); phy_stacksave(B43_PHY_G_CRS); if (phy->rev < 2) { phy_stacksave(0x0406); } else { phy_stacksave(0x04C0); phy_stacksave(0x04C1); } phy_stacksave(0x0033); phy_stacksave(0x04A7); phy_stacksave(0x04A3); phy_stacksave(0x04A9); phy_stacksave(0x04AA); phy_stacksave(0x04AC); phy_stacksave(0x0493); phy_stacksave(0x04A1); phy_stacksave(0x04A0); phy_stacksave(0x04A2); phy_stacksave(0x048A); phy_stacksave(0x04A8); phy_stacksave(0x04AB); if (phy->rev == 2) { phy_stacksave(0x04AD); phy_stacksave(0x04AE); } else if (phy->rev >= 3) { phy_stacksave(0x04AD); phy_stacksave(0x0415); phy_stacksave(0x0416); phy_stacksave(0x0417); ofdmtab_stacksave(0x1A00, 0x2); ofdmtab_stacksave(0x1A00, 0x3); } phy_stacksave(0x042B); phy_stacksave(0x048C); b43_phy_mask(dev, B43_PHY_RADIO_BITFIELD, ~0x1000); b43_phy_maskset(dev, B43_PHY_G_CRS, 0xFFFC, 0x0002); b43_phy_write(dev, 0x0033, 0x0800); b43_phy_write(dev, 0x04A3, 0x2027); b43_phy_write(dev, 0x04A9, 0x1CA8); b43_phy_write(dev, 0x0493, 0x287A); b43_phy_write(dev, 0x04AA, 0x1CA8); b43_phy_write(dev, 0x04AC, 0x287A); b43_phy_maskset(dev, 0x04A0, 0xFFC0, 0x001A); b43_phy_write(dev, 0x04A7, 0x000D); if (phy->rev < 2) { b43_phy_write(dev, 0x0406, 0xFF0D); } else if (phy->rev == 2) { b43_phy_write(dev, 0x04C0, 0xFFFF); b43_phy_write(dev, 0x04C1, 0x00A9); } else { b43_phy_write(dev, 0x04C0, 0x00C1); b43_phy_write(dev, 0x04C1, 0x0059); } b43_phy_maskset(dev, 0x04A1, 0xC0FF, 0x1800); b43_phy_maskset(dev, 0x04A1, 0xFFC0, 0x0015); b43_phy_maskset(dev, 0x04A8, 0xCFFF, 0x1000); b43_phy_maskset(dev, 0x04A8, 0xF0FF, 0x0A00); b43_phy_maskset(dev, 0x04AB, 0xCFFF, 0x1000); b43_phy_maskset(dev, 0x04AB, 0xF0FF, 0x0800); b43_phy_maskset(dev, 0x04AB, 0xFFCF, 0x0010); b43_phy_maskset(dev, 0x04AB, 0xFFF0, 0x0005); b43_phy_maskset(dev, 0x04A8, 0xFFCF, 0x0010); b43_phy_maskset(dev, 0x04A8, 0xFFF0, 0x0006); b43_phy_maskset(dev, 0x04A2, 0xF0FF, 0x0800); b43_phy_maskset(dev, 0x04A0, 0xF0FF, 0x0500); b43_phy_maskset(dev, 0x04A2, 0xFFF0, 0x000B); if (phy->rev >= 3) { b43_phy_mask(dev, 0x048A, 0x7FFF); b43_phy_maskset(dev, 0x0415, 0x8000, 0x36D8); b43_phy_maskset(dev, 0x0416, 0x8000, 0x36D8); b43_phy_maskset(dev, 0x0417, 0xFE00, 0x016D); } else { b43_phy_set(dev, 0x048A, 0x1000); b43_phy_maskset(dev, 0x048A, 0x9FFF, 0x2000); b43_hf_write(dev, b43_hf_read(dev) | B43_HF_ACIW); } if (phy->rev >= 2) { b43_phy_set(dev, 0x042B, 0x0800); } b43_phy_maskset(dev, 0x048C, 0xF0FF, 0x0200); if (phy->rev == 2) { b43_phy_maskset(dev, 0x04AE, 0xFF00, 0x007F); b43_phy_maskset(dev, 0x04AD, 0x00FF, 0x1300); } else if (phy->rev >= 6) { b43_ofdmtab_write16(dev, 0x1A00, 0x3, 0x007F); b43_ofdmtab_write16(dev, 0x1A00, 0x2, 0x007F); b43_phy_mask(dev, 0x04AD, 0x00FF); } b43_calc_nrssi_slope(dev); break; default: B43_WARN_ON(1); } } static void b43_radio_interference_mitigation_disable(struct b43_wldev *dev, int mode) { struct b43_phy *phy = &dev->phy; struct b43_phy_g *gphy = phy->g; u32 *stack = gphy->interfstack; switch (mode) { case B43_INTERFMODE_NONWLAN: if (phy->rev != 1) { b43_phy_mask(dev, 0x042B, ~0x0800); b43_phy_set(dev, B43_PHY_G_CRS, 0x4000); break; } radio_stackrestore(0x0078); b43_calc_nrssi_threshold(dev); phy_stackrestore(0x0406); b43_phy_mask(dev, 0x042B, ~0x0800); if (!dev->bad_frames_preempt) { b43_phy_mask(dev, B43_PHY_RADIO_BITFIELD, ~(1 << 11)); } b43_phy_set(dev, B43_PHY_G_CRS, 0x4000); phy_stackrestore(0x04A0); phy_stackrestore(0x04A1); phy_stackrestore(0x04A2); phy_stackrestore(0x04A8); phy_stackrestore(0x04AB); phy_stackrestore(0x04A7); phy_stackrestore(0x04A3); phy_stackrestore(0x04A9); phy_stackrestore(0x0493); phy_stackrestore(0x04AA); phy_stackrestore(0x04AC); break; case B43_INTERFMODE_MANUALWLAN: if (!(b43_phy_read(dev, 0x0033) & 0x0800)) break; gphy->aci_enable = false; phy_stackrestore(B43_PHY_RADIO_BITFIELD); phy_stackrestore(B43_PHY_G_CRS); phy_stackrestore(0x0033); phy_stackrestore(0x04A3); phy_stackrestore(0x04A9); phy_stackrestore(0x0493); phy_stackrestore(0x04AA); phy_stackrestore(0x04AC); phy_stackrestore(0x04A0); phy_stackrestore(0x04A7); if (phy->rev >= 2) { phy_stackrestore(0x04C0); phy_stackrestore(0x04C1); } else phy_stackrestore(0x0406); phy_stackrestore(0x04A1); phy_stackrestore(0x04AB); phy_stackrestore(0x04A8); if (phy->rev == 2) { phy_stackrestore(0x04AD); phy_stackrestore(0x04AE); } else if (phy->rev >= 3) { phy_stackrestore(0x04AD); phy_stackrestore(0x0415); phy_stackrestore(0x0416); phy_stackrestore(0x0417); ofdmtab_stackrestore(0x1A00, 0x2); ofdmtab_stackrestore(0x1A00, 0x3); } phy_stackrestore(0x04A2); phy_stackrestore(0x048A); phy_stackrestore(0x042B); phy_stackrestore(0x048C); b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_ACIW); b43_calc_nrssi_slope(dev); break; default: B43_WARN_ON(1); } } #undef phy_stacksave #undef phy_stackrestore #undef radio_stacksave #undef radio_stackrestore #undef ofdmtab_stacksave #undef ofdmtab_stackrestore static u16 b43_radio_core_calibration_value(struct b43_wldev *dev) { u16 reg, index, ret; static const u8 rcc_table[] = { 0x02, 0x03, 0x01, 0x0F, 0x06, 0x07, 0x05, 0x0F, 0x0A, 0x0B, 0x09, 0x0F, 0x0E, 0x0F, 0x0D, 0x0F, }; reg = b43_radio_read16(dev, 0x60); index = (reg & 0x001E) >> 1; ret = rcc_table[index] << 1; ret |= (reg & 0x0001); ret |= 0x0020; return ret; } #define LPD(L, P, D) (((L) << 2) | ((P) << 1) | ((D) << 0)) static u16 radio2050_rfover_val(struct b43_wldev *dev, u16 phy_register, unsigned int lpd) { struct b43_phy *phy = &dev->phy; struct b43_phy_g *gphy = phy->g; struct ssb_sprom *sprom = dev->dev->bus_sprom; if (!phy->gmode) return 0; if (has_loopback_gain(phy)) { int max_lb_gain = gphy->max_lb_gain; u16 extlna; u16 i; if (phy->radio_rev == 8) max_lb_gain += 0x3E; else max_lb_gain += 0x26; if (max_lb_gain >= 0x46) { extlna = 0x3000; max_lb_gain -= 0x46; } else if (max_lb_gain >= 0x3A) { extlna = 0x1000; max_lb_gain -= 0x3A; } else if (max_lb_gain >= 0x2E) { extlna = 0x2000; max_lb_gain -= 0x2E; } else { extlna = 0; max_lb_gain -= 0x10; } for (i = 0; i < 16; i++) { max_lb_gain -= (i * 6); if (max_lb_gain < 6) break; } if ((phy->rev < 7) || !(sprom->boardflags_lo & B43_BFL_EXTLNA)) { if (phy_register == B43_PHY_RFOVER) { return 0x1B3; } else if (phy_register == B43_PHY_RFOVERVAL) { extlna |= (i << 8); switch (lpd) { case LPD(0, 1, 1): return 0x0F92; case LPD(0, 0, 1): case LPD(1, 0, 1): return (0x0092 | extlna); case LPD(1, 0, 0): return (0x0093 | extlna); } B43_WARN_ON(1); } B43_WARN_ON(1); } else { if (phy_register == B43_PHY_RFOVER) { return 0x9B3; } else if (phy_register == B43_PHY_RFOVERVAL) { if (extlna) extlna |= 0x8000; extlna |= (i << 8); switch (lpd) { case LPD(0, 1, 1): return 0x8F92; case LPD(0, 0, 1): return (0x8092 | extlna); case LPD(1, 0, 1): return (0x2092 | extlna); case LPD(1, 0, 0): return (0x2093 | extlna); } B43_WARN_ON(1); } B43_WARN_ON(1); } } else { if ((phy->rev < 7) || !(sprom->boardflags_lo & B43_BFL_EXTLNA)) { if (phy_register == B43_PHY_RFOVER) { return 0x1B3; } else if (phy_register == B43_PHY_RFOVERVAL) { switch (lpd) { case LPD(0, 1, 1): return 0x0FB2; case LPD(0, 0, 1): return 0x00B2; case LPD(1, 0, 1): return 0x30B2; case LPD(1, 0, 0): return 0x30B3; } B43_WARN_ON(1); } B43_WARN_ON(1); } else { if (phy_register == B43_PHY_RFOVER) { return 0x9B3; } else if (phy_register == B43_PHY_RFOVERVAL) { switch (lpd) { case LPD(0, 1, 1): return 0x8FB2; case LPD(0, 0, 1): return 0x80B2; case LPD(1, 0, 1): return 0x20B2; case LPD(1, 0, 0): return 0x20B3; } B43_WARN_ON(1); } B43_WARN_ON(1); } } return 0; } struct init2050_saved_values { /* Core registers */ u16 reg_3EC; u16 reg_3E6; u16 reg_3F4; /* Radio registers */ u16 radio_43; u16 radio_51; u16 radio_52; /* PHY registers */ u16 phy_pgactl; u16 phy_cck_5A; u16 phy_cck_59; u16 phy_cck_58; u16 phy_cck_30; u16 phy_rfover; u16 phy_rfoverval; u16 phy_analogover; u16 phy_analogoverval; u16 phy_crs0; u16 phy_classctl; u16 phy_lo_mask; u16 phy_lo_ctl; u16 phy_syncctl; }; static u16 b43_radio_init2050(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; struct init2050_saved_values sav; u16 rcc; u16 radio78; u16 ret; u16 i, j; u32 tmp1 = 0, tmp2 = 0; memset(&sav, 0, sizeof(sav)); /* get rid of "may be used uninitialized..." */ sav.radio_43 = b43_radio_read16(dev, 0x43); sav.radio_51 = b43_radio_read16(dev, 0x51); sav.radio_52 = b43_radio_read16(dev, 0x52); sav.phy_pgactl = b43_phy_read(dev, B43_PHY_PGACTL); sav.phy_cck_5A = b43_phy_read(dev, B43_PHY_CCK(0x5A)); sav.phy_cck_59 = b43_phy_read(dev, B43_PHY_CCK(0x59)); sav.phy_cck_58 = b43_phy_read(dev, B43_PHY_CCK(0x58)); if (phy->type == B43_PHYTYPE_B) { sav.phy_cck_30 = b43_phy_read(dev, B43_PHY_CCK(0x30)); sav.reg_3EC = b43_read16(dev, 0x3EC); b43_phy_write(dev, B43_PHY_CCK(0x30), 0xFF); b43_write16(dev, 0x3EC, 0x3F3F); } else if (phy->gmode || phy->rev >= 2) { sav.phy_rfover = b43_phy_read(dev, B43_PHY_RFOVER); sav.phy_rfoverval = b43_phy_read(dev, B43_PHY_RFOVERVAL); sav.phy_analogover = b43_phy_read(dev, B43_PHY_ANALOGOVER); sav.phy_analogoverval = b43_phy_read(dev, B43_PHY_ANALOGOVERVAL); sav.phy_crs0 = b43_phy_read(dev, B43_PHY_CRS0); sav.phy_classctl = b43_phy_read(dev, B43_PHY_CLASSCTL); b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0003); b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFC); b43_phy_mask(dev, B43_PHY_CRS0, 0x7FFF); b43_phy_mask(dev, B43_PHY_CLASSCTL, 0xFFFC); if (has_loopback_gain(phy)) { sav.phy_lo_mask = b43_phy_read(dev, B43_PHY_LO_MASK); sav.phy_lo_ctl = b43_phy_read(dev, B43_PHY_LO_CTL); if (phy->rev >= 3) b43_phy_write(dev, B43_PHY_LO_MASK, 0xC020); else b43_phy_write(dev, B43_PHY_LO_MASK, 0x8020); b43_phy_write(dev, B43_PHY_LO_CTL, 0); } b43_phy_write(dev, B43_PHY_RFOVERVAL, radio2050_rfover_val(dev, B43_PHY_RFOVERVAL, LPD(0, 1, 1))); b43_phy_write(dev, B43_PHY_RFOVER, radio2050_rfover_val(dev, B43_PHY_RFOVER, 0)); } b43_write16(dev, 0x3E2, b43_read16(dev, 0x3E2) | 0x8000); sav.phy_syncctl = b43_phy_read(dev, B43_PHY_SYNCCTL); b43_phy_mask(dev, B43_PHY_SYNCCTL, 0xFF7F); sav.reg_3E6 = b43_read16(dev, 0x3E6); sav.reg_3F4 = b43_read16(dev, 0x3F4); if (phy->analog == 0) { b43_write16(dev, 0x03E6, 0x0122); } else { if (phy->analog >= 2) { b43_phy_maskset(dev, B43_PHY_CCK(0x03), 0xFFBF, 0x40); } b43_write16(dev, B43_MMIO_CHANNEL_EXT, (b43_read16(dev, B43_MMIO_CHANNEL_EXT) | 0x2000)); } rcc = b43_radio_core_calibration_value(dev); if (phy->type == B43_PHYTYPE_B) b43_radio_write16(dev, 0x78, 0x26); if (phy->gmode || phy->rev >= 2) { b43_phy_write(dev, B43_PHY_RFOVERVAL, radio2050_rfover_val(dev, B43_PHY_RFOVERVAL, LPD(0, 1, 1))); } b43_phy_write(dev, B43_PHY_PGACTL, 0xBFAF); b43_phy_write(dev, B43_PHY_CCK(0x2B), 0x1403); if (phy->gmode || phy->rev >= 2) { b43_phy_write(dev, B43_PHY_RFOVERVAL, radio2050_rfover_val(dev, B43_PHY_RFOVERVAL, LPD(0, 0, 1))); } b43_phy_write(dev, B43_PHY_PGACTL, 0xBFA0); b43_radio_set(dev, 0x51, 0x0004); if (phy->radio_rev == 8) { b43_radio_write16(dev, 0x43, 0x1F); } else { b43_radio_write16(dev, 0x52, 0); b43_radio_maskset(dev, 0x43, 0xFFF0, 0x0009); } b43_phy_write(dev, B43_PHY_CCK(0x58), 0); for (i = 0; i < 16; i++) { b43_phy_write(dev, B43_PHY_CCK(0x5A), 0x0480); b43_phy_write(dev, B43_PHY_CCK(0x59), 0xC810); b43_phy_write(dev, B43_PHY_CCK(0x58), 0x000D); if (phy->gmode || phy->rev >= 2) { b43_phy_write(dev, B43_PHY_RFOVERVAL, radio2050_rfover_val(dev, B43_PHY_RFOVERVAL, LPD(1, 0, 1))); } b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0); udelay(10); if (phy->gmode || phy->rev >= 2) { b43_phy_write(dev, B43_PHY_RFOVERVAL, radio2050_rfover_val(dev, B43_PHY_RFOVERVAL, LPD(1, 0, 1))); } b43_phy_write(dev, B43_PHY_PGACTL, 0xEFB0); udelay(10); if (phy->gmode || phy->rev >= 2) { b43_phy_write(dev, B43_PHY_RFOVERVAL, radio2050_rfover_val(dev, B43_PHY_RFOVERVAL, LPD(1, 0, 0))); } b43_phy_write(dev, B43_PHY_PGACTL, 0xFFF0); udelay(20); tmp1 += b43_phy_read(dev, B43_PHY_LO_LEAKAGE); b43_phy_write(dev, B43_PHY_CCK(0x58), 0); if (phy->gmode || phy->rev >= 2) { b43_phy_write(dev, B43_PHY_RFOVERVAL, radio2050_rfover_val(dev, B43_PHY_RFOVERVAL, LPD(1, 0, 1))); } b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0); } udelay(10); b43_phy_write(dev, B43_PHY_CCK(0x58), 0); tmp1++; tmp1 >>= 9; for (i = 0; i < 16; i++) { radio78 = (bitrev4(i) << 1) | 0x0020; b43_radio_write16(dev, 0x78, radio78); udelay(10); for (j = 0; j < 16; j++) { b43_phy_write(dev, B43_PHY_CCK(0x5A), 0x0D80); b43_phy_write(dev, B43_PHY_CCK(0x59), 0xC810); b43_phy_write(dev, B43_PHY_CCK(0x58), 0x000D); if (phy->gmode || phy->rev >= 2) { b43_phy_write(dev, B43_PHY_RFOVERVAL, radio2050_rfover_val(dev, B43_PHY_RFOVERVAL, LPD(1, 0, 1))); } b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0); udelay(10); if (phy->gmode || phy->rev >= 2) { b43_phy_write(dev, B43_PHY_RFOVERVAL, radio2050_rfover_val(dev, B43_PHY_RFOVERVAL, LPD(1, 0, 1))); } b43_phy_write(dev, B43_PHY_PGACTL, 0xEFB0); udelay(10); if (phy->gmode || phy->rev >= 2) { b43_phy_write(dev, B43_PHY_RFOVERVAL, radio2050_rfover_val(dev, B43_PHY_RFOVERVAL, LPD(1, 0, 0))); } b43_phy_write(dev, B43_PHY_PGACTL, 0xFFF0); udelay(10); tmp2 += b43_phy_read(dev, B43_PHY_LO_LEAKAGE); b43_phy_write(dev, B43_PHY_CCK(0x58), 0); if (phy->gmode || phy->rev >= 2) { b43_phy_write(dev, B43_PHY_RFOVERVAL, radio2050_rfover_val(dev, B43_PHY_RFOVERVAL, LPD(1, 0, 1))); } b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0); } tmp2++; tmp2 >>= 8; if (tmp1 < tmp2) break; } /* Restore the registers */ b43_phy_write(dev, B43_PHY_PGACTL, sav.phy_pgactl); b43_radio_write16(dev, 0x51, sav.radio_51); b43_radio_write16(dev, 0x52, sav.radio_52); b43_radio_write16(dev, 0x43, sav.radio_43); b43_phy_write(dev, B43_PHY_CCK(0x5A), sav.phy_cck_5A); b43_phy_write(dev, B43_PHY_CCK(0x59), sav.phy_cck_59); b43_phy_write(dev, B43_PHY_CCK(0x58), sav.phy_cck_58); b43_write16(dev, 0x3E6, sav.reg_3E6); if (phy->analog != 0) b43_write16(dev, 0x3F4, sav.reg_3F4); b43_phy_write(dev, B43_PHY_SYNCCTL, sav.phy_syncctl); b43_synth_pu_workaround(dev, phy->channel); if (phy->type == B43_PHYTYPE_B) { b43_phy_write(dev, B43_PHY_CCK(0x30), sav.phy_cck_30); b43_write16(dev, 0x3EC, sav.reg_3EC); } else if (phy->gmode) { b43_write16(dev, B43_MMIO_PHY_RADIO, b43_read16(dev, B43_MMIO_PHY_RADIO) & 0x7FFF); b43_phy_write(dev, B43_PHY_RFOVER, sav.phy_rfover); b43_phy_write(dev, B43_PHY_RFOVERVAL, sav.phy_rfoverval); b43_phy_write(dev, B43_PHY_ANALOGOVER, sav.phy_analogover); b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, sav.phy_analogoverval); b43_phy_write(dev, B43_PHY_CRS0, sav.phy_crs0); b43_phy_write(dev, B43_PHY_CLASSCTL, sav.phy_classctl); if (has_loopback_gain(phy)) { b43_phy_write(dev, B43_PHY_LO_MASK, sav.phy_lo_mask); b43_phy_write(dev, B43_PHY_LO_CTL, sav.phy_lo_ctl); } } if (i > 15) ret = radio78; else ret = rcc; return ret; } static void b43_phy_initb5(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; struct b43_phy_g *gphy = phy->g; u16 offset, value; u8 old_channel; if (phy->analog == 1) { b43_radio_set(dev, 0x007A, 0x0050); } if ((dev->dev->board_vendor != SSB_BOARDVENDOR_BCM) && (dev->dev->board_type != SSB_BOARD_BU4306)) { value = 0x2120; for (offset = 0x00A8; offset < 0x00C7; offset++) { b43_phy_write(dev, offset, value); value += 0x202; } } b43_phy_maskset(dev, 0x0035, 0xF0FF, 0x0700); if (phy->radio_ver == 0x2050) b43_phy_write(dev, 0x0038, 0x0667); if (phy->gmode || phy->rev >= 2) { if (phy->radio_ver == 0x2050) { b43_radio_set(dev, 0x007A, 0x0020); b43_radio_set(dev, 0x0051, 0x0004); } b43_write16(dev, B43_MMIO_PHY_RADIO, 0x0000); b43_phy_set(dev, 0x0802, 0x0100); b43_phy_set(dev, 0x042B, 0x2000); b43_phy_write(dev, 0x001C, 0x186A); b43_phy_maskset(dev, 0x0013, 0x00FF, 0x1900); b43_phy_maskset(dev, 0x0035, 0xFFC0, 0x0064); b43_phy_maskset(dev, 0x005D, 0xFF80, 0x000A); } if (dev->bad_frames_preempt) { b43_phy_set(dev, B43_PHY_RADIO_BITFIELD, (1 << 11)); } if (phy->analog == 1) { b43_phy_write(dev, 0x0026, 0xCE00); b43_phy_write(dev, 0x0021, 0x3763); b43_phy_write(dev, 0x0022, 0x1BC3); b43_phy_write(dev, 0x0023, 0x06F9); b43_phy_write(dev, 0x0024, 0x037E); } else b43_phy_write(dev, 0x0026, 0xCC00); b43_phy_write(dev, 0x0030, 0x00C6); b43_write16(dev, 0x03EC, 0x3F22); if (phy->analog == 1) b43_phy_write(dev, 0x0020, 0x3E1C); else b43_phy_write(dev, 0x0020, 0x301C); if (phy->analog == 0) b43_write16(dev, 0x03E4, 0x3000); old_channel = phy->channel; /* Force to channel 7, even if not supported. */ b43_gphy_channel_switch(dev, 7, 0); if (phy->radio_ver != 0x2050) { b43_radio_write16(dev, 0x0075, 0x0080); b43_radio_write16(dev, 0x0079, 0x0081); } b43_radio_write16(dev, 0x0050, 0x0020); b43_radio_write16(dev, 0x0050, 0x0023); if (phy->radio_ver == 0x2050) { b43_radio_write16(dev, 0x0050, 0x0020); b43_radio_write16(dev, 0x005A, 0x0070); } b43_radio_write16(dev, 0x005B, 0x007B); b43_radio_write16(dev, 0x005C, 0x00B0); b43_radio_set(dev, 0x007A, 0x0007); b43_gphy_channel_switch(dev, old_channel, 0); b43_phy_write(dev, 0x0014, 0x0080); b43_phy_write(dev, 0x0032, 0x00CA); b43_phy_write(dev, 0x002A, 0x88A3); b43_set_txpower_g(dev, &gphy->bbatt, &gphy->rfatt, gphy->tx_control); if (phy->radio_ver == 0x2050) b43_radio_write16(dev, 0x005D, 0x000D); b43_write16(dev, 0x03E4, (b43_read16(dev, 0x03E4) & 0xFFC0) | 0x0004); } /* https://bcm-v4.sipsolutions.net/802.11/PHY/Init/B6 */ static void b43_phy_initb6(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; struct b43_phy_g *gphy = phy->g; u16 offset, val; u8 old_channel; b43_phy_write(dev, 0x003E, 0x817A); b43_radio_write16(dev, 0x007A, (b43_radio_read16(dev, 0x007A) | 0x0058)); if (phy->radio_rev == 4 || phy->radio_rev == 5) { b43_radio_write16(dev, 0x51, 0x37); b43_radio_write16(dev, 0x52, 0x70); b43_radio_write16(dev, 0x53, 0xB3); b43_radio_write16(dev, 0x54, 0x9B); b43_radio_write16(dev, 0x5A, 0x88); b43_radio_write16(dev, 0x5B, 0x88); b43_radio_write16(dev, 0x5D, 0x88); b43_radio_write16(dev, 0x5E, 0x88); b43_radio_write16(dev, 0x7D, 0x88); b43_hf_write(dev, b43_hf_read(dev) | B43_HF_TSSIRPSMW); } B43_WARN_ON(phy->radio_rev == 6 || phy->radio_rev == 7); /* We had code for these revs here... */ if (phy->radio_rev == 8) { b43_radio_write16(dev, 0x51, 0); b43_radio_write16(dev, 0x52, 0x40); b43_radio_write16(dev, 0x53, 0xB7); b43_radio_write16(dev, 0x54, 0x98); b43_radio_write16(dev, 0x5A, 0x88); b43_radio_write16(dev, 0x5B, 0x6B); b43_radio_write16(dev, 0x5C, 0x0F); if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_ALTIQ) { b43_radio_write16(dev, 0x5D, 0xFA); b43_radio_write16(dev, 0x5E, 0xD8); } else { b43_radio_write16(dev, 0x5D, 0xF5); b43_radio_write16(dev, 0x5E, 0xB8); } b43_radio_write16(dev, 0x0073, 0x0003); b43_radio_write16(dev, 0x007D, 0x00A8); b43_radio_write16(dev, 0x007C, 0x0001); b43_radio_write16(dev, 0x007E, 0x0008); } val = 0x1E1F; for (offset = 0x0088; offset < 0x0098; offset++) { b43_phy_write(dev, offset, val); val -= 0x0202; } val = 0x3E3F; for (offset = 0x0098; offset < 0x00A8; offset++) { b43_phy_write(dev, offset, val); val -= 0x0202; } val = 0x2120; for (offset = 0x00A8; offset < 0x00C8; offset++) { b43_phy_write(dev, offset, (val & 0x3F3F)); val += 0x0202; } if (phy->type == B43_PHYTYPE_G) { b43_radio_set(dev, 0x007A, 0x0020); b43_radio_set(dev, 0x0051, 0x0004); b43_phy_set(dev, 0x0802, 0x0100); b43_phy_set(dev, 0x042B, 0x2000); b43_phy_write(dev, 0x5B, 0); b43_phy_write(dev, 0x5C, 0); } old_channel = phy->channel; if (old_channel >= 8) b43_gphy_channel_switch(dev, 1, 0); else b43_gphy_channel_switch(dev, 13, 0); b43_radio_write16(dev, 0x0050, 0x0020); b43_radio_write16(dev, 0x0050, 0x0023); udelay(40); if (phy->radio_rev < 6 || phy->radio_rev == 8) { b43_radio_write16(dev, 0x7C, (b43_radio_read16(dev, 0x7C) | 0x0002)); b43_radio_write16(dev, 0x50, 0x20); } if (phy->radio_rev <= 2) { b43_radio_write16(dev, 0x50, 0x20); b43_radio_write16(dev, 0x5A, 0x70); b43_radio_write16(dev, 0x5B, 0x7B); b43_radio_write16(dev, 0x5C, 0xB0); } b43_radio_maskset(dev, 0x007A, 0x00F8, 0x0007); b43_gphy_channel_switch(dev, old_channel, 0); b43_phy_write(dev, 0x0014, 0x0200); if (phy->radio_rev >= 6) b43_phy_write(dev, 0x2A, 0x88C2); else b43_phy_write(dev, 0x2A, 0x8AC0); b43_phy_write(dev, 0x0038, 0x0668); b43_set_txpower_g(dev, &gphy->bbatt, &gphy->rfatt, gphy->tx_control); if (phy->radio_rev == 4 || phy->radio_rev == 5) b43_phy_maskset(dev, 0x5D, 0xFF80, 0x0003); if (phy->radio_rev <= 2) b43_radio_write16(dev, 0x005D, 0x000D); if (phy->analog == 4) { b43_write16(dev, 0x3E4, 9); b43_phy_mask(dev, 0x61, 0x0FFF); } else { b43_phy_maskset(dev, 0x0002, 0xFFC0, 0x0004); } if (phy->type == B43_PHYTYPE_B) B43_WARN_ON(1); else if (phy->type == B43_PHYTYPE_G) b43_write16(dev, 0x03E6, 0x0); } static void b43_calc_loopback_gain(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; struct b43_phy_g *gphy = phy->g; u16 backup_phy[16] = { 0 }; u16 backup_radio[3]; u16 backup_bband; u16 i, j, loop_i_max; u16 trsw_rx; u16 loop1_outer_done, loop1_inner_done; backup_phy[0] = b43_phy_read(dev, B43_PHY_CRS0); backup_phy[1] = b43_phy_read(dev, B43_PHY_CCKBBANDCFG); backup_phy[2] = b43_phy_read(dev, B43_PHY_RFOVER); backup_phy[3] = b43_phy_read(dev, B43_PHY_RFOVERVAL); if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */ backup_phy[4] = b43_phy_read(dev, B43_PHY_ANALOGOVER); backup_phy[5] = b43_phy_read(dev, B43_PHY_ANALOGOVERVAL); } backup_phy[6] = b43_phy_read(dev, B43_PHY_CCK(0x5A)); backup_phy[7] = b43_phy_read(dev, B43_PHY_CCK(0x59)); backup_phy[8] = b43_phy_read(dev, B43_PHY_CCK(0x58)); backup_phy[9] = b43_phy_read(dev, B43_PHY_CCK(0x0A)); backup_phy[10] = b43_phy_read(dev, B43_PHY_CCK(0x03)); backup_phy[11] = b43_phy_read(dev, B43_PHY_LO_MASK); backup_phy[12] = b43_phy_read(dev, B43_PHY_LO_CTL); backup_phy[13] = b43_phy_read(dev, B43_PHY_CCK(0x2B)); backup_phy[14] = b43_phy_read(dev, B43_PHY_PGACTL); backup_phy[15] = b43_phy_read(dev, B43_PHY_LO_LEAKAGE); backup_bband = gphy->bbatt.att; backup_radio[0] = b43_radio_read16(dev, 0x52); backup_radio[1] = b43_radio_read16(dev, 0x43); backup_radio[2] = b43_radio_read16(dev, 0x7A); b43_phy_mask(dev, B43_PHY_CRS0, 0x3FFF); b43_phy_set(dev, B43_PHY_CCKBBANDCFG, 0x8000); b43_phy_set(dev, B43_PHY_RFOVER, 0x0002); b43_phy_mask(dev, B43_PHY_RFOVERVAL, 0xFFFD); b43_phy_set(dev, B43_PHY_RFOVER, 0x0001); b43_phy_mask(dev, B43_PHY_RFOVERVAL, 0xFFFE); if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */ b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0001); b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFE); b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0002); b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFD); } b43_phy_set(dev, B43_PHY_RFOVER, 0x000C); b43_phy_set(dev, B43_PHY_RFOVERVAL, 0x000C); b43_phy_set(dev, B43_PHY_RFOVER, 0x0030); b43_phy_maskset(dev, B43_PHY_RFOVERVAL, 0xFFCF, 0x10); b43_phy_write(dev, B43_PHY_CCK(0x5A), 0x0780); b43_phy_write(dev, B43_PHY_CCK(0x59), 0xC810); b43_phy_write(dev, B43_PHY_CCK(0x58), 0x000D); b43_phy_set(dev, B43_PHY_CCK(0x0A), 0x2000); if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */ b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0004); b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFB); } b43_phy_maskset(dev, B43_PHY_CCK(0x03), 0xFF9F, 0x40); if (phy->radio_rev == 8) { b43_radio_write16(dev, 0x43, 0x000F); } else { b43_radio_write16(dev, 0x52, 0); b43_radio_maskset(dev, 0x43, 0xFFF0, 0x9); } b43_gphy_set_baseband_attenuation(dev, 11); if (phy->rev >= 3) b43_phy_write(dev, B43_PHY_LO_MASK, 0xC020); else b43_phy_write(dev, B43_PHY_LO_MASK, 0x8020); b43_phy_write(dev, B43_PHY_LO_CTL, 0); b43_phy_maskset(dev, B43_PHY_CCK(0x2B), 0xFFC0, 0x01); b43_phy_maskset(dev, B43_PHY_CCK(0x2B), 0xC0FF, 0x800); b43_phy_set(dev, B43_PHY_RFOVER, 0x0100); b43_phy_mask(dev, B43_PHY_RFOVERVAL, 0xCFFF); if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_EXTLNA) { if (phy->rev >= 7) { b43_phy_set(dev, B43_PHY_RFOVER, 0x0800); b43_phy_set(dev, B43_PHY_RFOVERVAL, 0x8000); } } b43_radio_mask(dev, 0x7A, 0x00F7); j = 0; loop_i_max = (phy->radio_rev == 8) ? 15 : 9; for (i = 0; i < loop_i_max; i++) { for (j = 0; j < 16; j++) { b43_radio_write16(dev, 0x43, i); b43_phy_maskset(dev, B43_PHY_RFOVERVAL, 0xF0FF, (j << 8)); b43_phy_maskset(dev, B43_PHY_PGACTL, 0x0FFF, 0xA000); b43_phy_set(dev, B43_PHY_PGACTL, 0xF000); udelay(20); if (b43_phy_read(dev, B43_PHY_LO_LEAKAGE) >= 0xDFC) goto exit_loop1; } } exit_loop1: loop1_outer_done = i; loop1_inner_done = j; if (j >= 8) { b43_phy_set(dev, B43_PHY_RFOVERVAL, 0x30); trsw_rx = 0x1B; for (j = j - 8; j < 16; j++) { b43_phy_maskset(dev, B43_PHY_RFOVERVAL, 0xF0FF, (j << 8)); b43_phy_maskset(dev, B43_PHY_PGACTL, 0x0FFF, 0xA000); b43_phy_set(dev, B43_PHY_PGACTL, 0xF000); udelay(20); trsw_rx -= 3; if (b43_phy_read(dev, B43_PHY_LO_LEAKAGE) >= 0xDFC) goto exit_loop2; } } else trsw_rx = 0x18; exit_loop2: if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */ b43_phy_write(dev, B43_PHY_ANALOGOVER, backup_phy[4]); b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, backup_phy[5]); } b43_phy_write(dev, B43_PHY_CCK(0x5A), backup_phy[6]); b43_phy_write(dev, B43_PHY_CCK(0x59), backup_phy[7]); b43_phy_write(dev, B43_PHY_CCK(0x58), backup_phy[8]); b43_phy_write(dev, B43_PHY_CCK(0x0A), backup_phy[9]); b43_phy_write(dev, B43_PHY_CCK(0x03), backup_phy[10]); b43_phy_write(dev, B43_PHY_LO_MASK, backup_phy[11]); b43_phy_write(dev, B43_PHY_LO_CTL, backup_phy[12]); b43_phy_write(dev, B43_PHY_CCK(0x2B), backup_phy[13]); b43_phy_write(dev, B43_PHY_PGACTL, backup_phy[14]); b43_gphy_set_baseband_attenuation(dev, backup_bband); b43_radio_write16(dev, 0x52, backup_radio[0]); b43_radio_write16(dev, 0x43, backup_radio[1]); b43_radio_write16(dev, 0x7A, backup_radio[2]); b43_phy_write(dev, B43_PHY_RFOVER, backup_phy[2] | 0x0003); udelay(10); b43_phy_write(dev, B43_PHY_RFOVER, backup_phy[2]); b43_phy_write(dev, B43_PHY_RFOVERVAL, backup_phy[3]); b43_phy_write(dev, B43_PHY_CRS0, backup_phy[0]); b43_phy_write(dev, B43_PHY_CCKBBANDCFG, backup_phy[1]); gphy->max_lb_gain = ((loop1_inner_done * 6) - (loop1_outer_done * 4)) - 11; gphy->trsw_rx_gain = trsw_rx * 2; } static void b43_hardware_pctl_early_init(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; if (!b43_has_hardware_pctl(dev)) { b43_phy_write(dev, 0x047A, 0xC111); return; } b43_phy_mask(dev, 0x0036, 0xFEFF); b43_phy_write(dev, 0x002F, 0x0202); b43_phy_set(dev, 0x047C, 0x0002); b43_phy_set(dev, 0x047A, 0xF000); if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) { b43_phy_maskset(dev, 0x047A, 0xFF0F, 0x0010); b43_phy_set(dev, 0x005D, 0x8000); b43_phy_maskset(dev, 0x004E, 0xFFC0, 0x0010); b43_phy_write(dev, 0x002E, 0xC07F); b43_phy_set(dev, 0x0036, 0x0400); } else { b43_phy_set(dev, 0x0036, 0x0200); b43_phy_set(dev, 0x0036, 0x0400); b43_phy_mask(dev, 0x005D, 0x7FFF); b43_phy_mask(dev, 0x004F, 0xFFFE); b43_phy_maskset(dev, 0x004E, 0xFFC0, 0x0010); b43_phy_write(dev, 0x002E, 0xC07F); b43_phy_maskset(dev, 0x047A, 0xFF0F, 0x0010); } } /* Hardware power control for G-PHY */ static void b43_hardware_pctl_init_gphy(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; struct b43_phy_g *gphy = phy->g; if (!b43_has_hardware_pctl(dev)) { /* No hardware power control */ b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_HWPCTL); return; } b43_phy_maskset(dev, 0x0036, 0xFFC0, (gphy->tgt_idle_tssi - gphy->cur_idle_tssi)); b43_phy_maskset(dev, 0x0478, 0xFF00, (gphy->tgt_idle_tssi - gphy->cur_idle_tssi)); b43_gphy_tssi_power_lt_init(dev); b43_gphy_gain_lt_init(dev); b43_phy_mask(dev, 0x0060, 0xFFBF); b43_phy_write(dev, 0x0014, 0x0000); B43_WARN_ON(phy->rev < 6); b43_phy_set(dev, 0x0478, 0x0800); b43_phy_mask(dev, 0x0478, 0xFEFF); b43_phy_mask(dev, 0x0801, 0xFFBF); b43_gphy_dc_lt_init(dev, 1); /* Enable hardware pctl in firmware. */ b43_hf_write(dev, b43_hf_read(dev) | B43_HF_HWPCTL); } /* Initialize B/G PHY power control */ static void b43_phy_init_pctl(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; struct b43_phy_g *gphy = phy->g; struct b43_rfatt old_rfatt; struct b43_bbatt old_bbatt; u8 old_tx_control = 0; B43_WARN_ON(phy->type != B43_PHYTYPE_G); if ((dev->dev->board_vendor == SSB_BOARDVENDOR_BCM) && (dev->dev->board_type == SSB_BOARD_BU4306)) return; b43_phy_write(dev, 0x0028, 0x8018); /* This does something with the Analog... */ b43_write16(dev, B43_MMIO_PHY0, b43_read16(dev, B43_MMIO_PHY0) & 0xFFDF); if (!phy->gmode) return; b43_hardware_pctl_early_init(dev); if (gphy->cur_idle_tssi == 0) { if (phy->radio_ver == 0x2050 && phy->analog == 0) { b43_radio_maskset(dev, 0x0076, 0x00F7, 0x0084); } else { struct b43_rfatt rfatt; struct b43_bbatt bbatt; memcpy(&old_rfatt, &gphy->rfatt, sizeof(old_rfatt)); memcpy(&old_bbatt, &gphy->bbatt, sizeof(old_bbatt)); old_tx_control = gphy->tx_control; bbatt.att = 11; if (phy->radio_rev == 8) { rfatt.att = 15; rfatt.with_padmix = true; } else { rfatt.att = 9; rfatt.with_padmix = false; } b43_set_txpower_g(dev, &bbatt, &rfatt, 0); } b43_dummy_transmission(dev, false, true); gphy->cur_idle_tssi = b43_phy_read(dev, B43_PHY_ITSSI); if (B43_DEBUG) { /* Current-Idle-TSSI sanity check. */ if (abs(gphy->cur_idle_tssi - gphy->tgt_idle_tssi) >= 20) { b43dbg(dev->wl, "!WARNING! Idle-TSSI phy->cur_idle_tssi " "measuring failed. (cur=%d, tgt=%d). Disabling TX power " "adjustment.\n", gphy->cur_idle_tssi, gphy->tgt_idle_tssi); gphy->cur_idle_tssi = 0; } } if (phy->radio_ver == 0x2050 && phy->analog == 0) { b43_radio_mask(dev, 0x0076, 0xFF7B); } else { b43_set_txpower_g(dev, &old_bbatt, &old_rfatt, old_tx_control); } } b43_hardware_pctl_init_gphy(dev); b43_shm_clear_tssi(dev); } static void b43_phy_inita(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; might_sleep(); if (phy->rev >= 6) { if (b43_phy_read(dev, B43_PHY_ENCORE) & B43_PHY_ENCORE_EN) b43_phy_set(dev, B43_PHY_ENCORE, 0x0010); else b43_phy_mask(dev, B43_PHY_ENCORE, ~0x1010); } b43_wa_all(dev); if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_PACTRL) b43_phy_maskset(dev, B43_PHY_OFDM(0x6E), 0xE000, 0x3CF); } static void b43_phy_initg(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; struct b43_phy_g *gphy = phy->g; u16 tmp; if (phy->rev == 1) b43_phy_initb5(dev); else b43_phy_initb6(dev); if (phy->rev >= 2 || phy->gmode) b43_phy_inita(dev); if (phy->rev >= 2) { b43_phy_write(dev, B43_PHY_ANALOGOVER, 0); b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, 0); } if (phy->rev == 2) { b43_phy_write(dev, B43_PHY_RFOVER, 0); b43_phy_write(dev, B43_PHY_PGACTL, 0xC0); } if (phy->rev > 5) { b43_phy_write(dev, B43_PHY_RFOVER, 0x400); b43_phy_write(dev, B43_PHY_PGACTL, 0xC0); } if (phy->gmode || phy->rev >= 2) { tmp = b43_phy_read(dev, B43_PHY_VERSION_OFDM); tmp &= B43_PHYVER_VERSION; if (tmp == 3 || tmp == 5) { b43_phy_write(dev, B43_PHY_OFDM(0xC2), 0x1816); b43_phy_write(dev, B43_PHY_OFDM(0xC3), 0x8006); } if (tmp == 5) { b43_phy_maskset(dev, B43_PHY_OFDM(0xCC), 0x00FF, 0x1F00); } } if ((phy->rev <= 2 && phy->gmode) || phy->rev >= 2) b43_phy_write(dev, B43_PHY_OFDM(0x7E), 0x78); if (phy->radio_rev == 8) { b43_phy_set(dev, B43_PHY_EXTG(0x01), 0x80); b43_phy_set(dev, B43_PHY_OFDM(0x3E), 0x4); } if (has_loopback_gain(phy)) b43_calc_loopback_gain(dev); if (phy->radio_rev != 8) { if (gphy->initval == 0xFFFF) gphy->initval = b43_radio_init2050(dev); else b43_radio_write16(dev, 0x0078, gphy->initval); } b43_lo_g_init(dev); if (has_tx_magnification(phy)) { b43_radio_write16(dev, 0x52, (b43_radio_read16(dev, 0x52) & 0xFF00) | gphy->lo_control->tx_bias | gphy-> lo_control->tx_magn); } else { b43_radio_maskset(dev, 0x52, 0xFFF0, gphy->lo_control->tx_bias); } if (phy->rev >= 6) { b43_phy_maskset(dev, B43_PHY_CCK(0x36), 0x0FFF, (gphy->lo_control->tx_bias << 12)); } if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_PACTRL) b43_phy_write(dev, B43_PHY_CCK(0x2E), 0x8075); else b43_phy_write(dev, B43_PHY_CCK(0x2E), 0x807F); if (phy->rev < 2) b43_phy_write(dev, B43_PHY_CCK(0x2F), 0x101); else b43_phy_write(dev, B43_PHY_CCK(0x2F), 0x202); if (phy->gmode || phy->rev >= 2) { b43_lo_g_adjust(dev); b43_phy_write(dev, B43_PHY_LO_MASK, 0x8078); } if (!(dev->dev->bus_sprom->boardflags_lo & B43_BFL_RSSI)) { /* The specs state to update the NRSSI LT with * the value 0x7FFFFFFF here. I think that is some weird * compiler optimization in the original driver. * Essentially, what we do here is resetting all NRSSI LT * entries to -32 (see the clamp_val() in nrssi_hw_update()) */ b43_nrssi_hw_update(dev, 0xFFFF); //FIXME? b43_calc_nrssi_threshold(dev); } else if (phy->gmode || phy->rev >= 2) { if (gphy->nrssi[0] == -1000) { B43_WARN_ON(gphy->nrssi[1] != -1000); b43_calc_nrssi_slope(dev); } else b43_calc_nrssi_threshold(dev); } if (phy->radio_rev == 8) b43_phy_write(dev, B43_PHY_EXTG(0x05), 0x3230); b43_phy_init_pctl(dev); /* FIXME: The spec says in the following if, the 0 should be replaced 'if OFDM may not be used in the current locale' but OFDM is legal everywhere */ if ((dev->dev->chip_id == 0x4306 && dev->dev->chip_pkg == 2) || 0) { b43_phy_mask(dev, B43_PHY_CRS0, 0xBFFF); b43_phy_mask(dev, B43_PHY_OFDM(0xC3), 0x7FFF); } } void b43_gphy_channel_switch(struct b43_wldev *dev, unsigned int channel, bool synthetic_pu_workaround) { if (synthetic_pu_workaround) b43_synth_pu_workaround(dev, channel); b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(channel)); if (channel == 14) { if (dev->dev->bus_sprom->country_code == SSB_SPROM1CCODE_JAPAN) b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_ACPR); else b43_hf_write(dev, b43_hf_read(dev) | B43_HF_ACPR); b43_write16(dev, B43_MMIO_CHANNEL_EXT, b43_read16(dev, B43_MMIO_CHANNEL_EXT) | (1 << 11)); } else { b43_write16(dev, B43_MMIO_CHANNEL_EXT, b43_read16(dev, B43_MMIO_CHANNEL_EXT) & 0xF7BF); } } static void default_baseband_attenuation(struct b43_wldev *dev, struct b43_bbatt *bb) { struct b43_phy *phy = &dev->phy; if (phy->radio_ver == 0x2050 && phy->radio_rev < 6) bb->att = 0; else bb->att = 2; } static void default_radio_attenuation(struct b43_wldev *dev, struct b43_rfatt *rf) { struct b43_bus_dev *bdev = dev->dev; struct b43_phy *phy = &dev->phy; rf->with_padmix = false; if (dev->dev->board_vendor == SSB_BOARDVENDOR_BCM && dev->dev->board_type == SSB_BOARD_BCM4309G) { if (dev->dev->board_rev < 0x43) { rf->att = 2; return; } else if (dev->dev->board_rev < 0x51) { rf->att = 3; return; } } switch (phy->radio_ver) { case 0x2053: switch (phy->radio_rev) { case 1: rf->att = 6; return; } break; case 0x2050: switch (phy->radio_rev) { case 0: rf->att = 5; return; case 1: if (phy->type == B43_PHYTYPE_G) { if (bdev->board_vendor == SSB_BOARDVENDOR_BCM && bdev->board_type == SSB_BOARD_BCM4309G && bdev->board_rev >= 30) rf->att = 3; else if (bdev->board_vendor == SSB_BOARDVENDOR_BCM && bdev->board_type == SSB_BOARD_BU4306) rf->att = 3; else rf->att = 1; } else { if (bdev->board_vendor == SSB_BOARDVENDOR_BCM && bdev->board_type == SSB_BOARD_BCM4309G && bdev->board_rev >= 30) rf->att = 7; else rf->att = 6; } return; case 2: if (phy->type == B43_PHYTYPE_G) { if (bdev->board_vendor == SSB_BOARDVENDOR_BCM && bdev->board_type == SSB_BOARD_BCM4309G && bdev->board_rev >= 30) rf->att = 3; else if (bdev->board_vendor == SSB_BOARDVENDOR_BCM && bdev->board_type == SSB_BOARD_BU4306) rf->att = 5; else if (bdev->chip_id == 0x4320) rf->att = 4; else rf->att = 3; } else rf->att = 6; return; case 3: rf->att = 5; return; case 4: case 5: rf->att = 1; return; case 6: case 7: rf->att = 5; return; case 8: rf->att = 0xA; rf->with_padmix = true; return; case 9: default: rf->att = 5; return; } } rf->att = 5; } static u16 default_tx_control(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; if (phy->radio_ver != 0x2050) return 0; if (phy->radio_rev == 1) return B43_TXCTL_PA2DB | B43_TXCTL_TXMIX; if (phy->radio_rev < 6) return B43_TXCTL_PA2DB; if (phy->radio_rev == 8) return B43_TXCTL_TXMIX; return 0; } static u8 b43_gphy_aci_detect(struct b43_wldev *dev, u8 channel) { struct b43_phy *phy = &dev->phy; struct b43_phy_g *gphy = phy->g; u8 ret = 0; u16 saved, rssi, temp; int i, j = 0; saved = b43_phy_read(dev, 0x0403); b43_switch_channel(dev, channel); b43_phy_write(dev, 0x0403, (saved & 0xFFF8) | 5); if (gphy->aci_hw_rssi) rssi = b43_phy_read(dev, 0x048A) & 0x3F; else rssi = saved & 0x3F; /* clamp temp to signed 5bit */ if (rssi > 32) rssi -= 64; for (i = 0; i < 100; i++) { temp = (b43_phy_read(dev, 0x047F) >> 8) & 0x3F; if (temp > 32) temp -= 64; if (temp < rssi) j++; if (j >= 20) ret = 1; } b43_phy_write(dev, 0x0403, saved); return ret; } static u8 b43_gphy_aci_scan(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; u8 ret[13] = { 0 }; unsigned int channel = phy->channel; unsigned int i, j, start, end; if (!((phy->type == B43_PHYTYPE_G) && (phy->rev > 0))) return 0; b43_phy_lock(dev); b43_radio_lock(dev); b43_phy_mask(dev, 0x0802, 0xFFFC); b43_phy_mask(dev, B43_PHY_G_CRS, 0x7FFF); b43_set_all_gains(dev, 3, 8, 1); start = (channel > 5) ? channel - 5 : 1; end = (channel + 5 < 14) ? channel + 5 : 13; for (i = start; i <= end; i++) { if (abs(channel - i) > 2) ret[i - 1] = b43_gphy_aci_detect(dev, i); } b43_switch_channel(dev, channel); b43_phy_maskset(dev, 0x0802, 0xFFFC, 0x0003); b43_phy_mask(dev, 0x0403, 0xFFF8); b43_phy_set(dev, B43_PHY_G_CRS, 0x8000); b43_set_original_gains(dev); for (i = 0; i < 13; i++) { if (!ret[i]) continue; end = (i + 5 < 13) ? i + 5 : 13; for (j = i; j < end; j++) ret[j] = 1; } b43_radio_unlock(dev); b43_phy_unlock(dev); return ret[channel - 1]; } static s32 b43_tssi2dbm_ad(s32 num, s32 den) { if (num < 0) return num / den; else return (num + den / 2) / den; } static s8 b43_tssi2dbm_entry(s8 entry[], u8 index, s16 pab0, s16 pab1, s16 pab2) { s32 m1, m2, f = 256, q, delta; s8 i = 0; m1 = b43_tssi2dbm_ad(16 * pab0 + index * pab1, 32); m2 = max(b43_tssi2dbm_ad(32768 + index * pab2, 256), 1); do { if (i > 15) return -EINVAL; q = b43_tssi2dbm_ad(f * 4096 - b43_tssi2dbm_ad(m2 * f, 16) * f, 2048); delta = abs(q - f); f = q; i++; } while (delta >= 2); entry[index] = clamp_val(b43_tssi2dbm_ad(m1 * f, 8192), -127, 128); return 0; } u8 *b43_generate_dyn_tssi2dbm_tab(struct b43_wldev *dev, s16 pab0, s16 pab1, s16 pab2) { unsigned int i; u8 *tab; int err; tab = kmalloc(64, GFP_KERNEL); if (!tab) { b43err(dev->wl, "Could not allocate memory " "for tssi2dbm table\n"); return NULL; } for (i = 0; i < 64; i++) { err = b43_tssi2dbm_entry(tab, i, pab0, pab1, pab2); if (err) { b43err(dev->wl, "Could not generate " "tssi2dBm table\n"); kfree(tab); return NULL; } } return tab; } /* Initialise the TSSI->dBm lookup table */ static int b43_gphy_init_tssi2dbm_table(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; struct b43_phy_g *gphy = phy->g; s16 pab0, pab1, pab2; pab0 = (s16) (dev->dev->bus_sprom->pa0b0); pab1 = (s16) (dev->dev->bus_sprom->pa0b1); pab2 = (s16) (dev->dev->bus_sprom->pa0b2); B43_WARN_ON((dev->dev->chip_id == 0x4301) && (phy->radio_ver != 0x2050)); /* Not supported anymore */ gphy->dyn_tssi_tbl = false; if (pab0 != 0 && pab1 != 0 && pab2 != 0 && pab0 != -1 && pab1 != -1 && pab2 != -1) { /* The pabX values are set in SPROM. Use them. */ if ((s8) dev->dev->bus_sprom->itssi_bg != 0 && (s8) dev->dev->bus_sprom->itssi_bg != -1) { gphy->tgt_idle_tssi = (s8) (dev->dev->bus_sprom->itssi_bg); } else gphy->tgt_idle_tssi = 62; gphy->tssi2dbm = b43_generate_dyn_tssi2dbm_tab(dev, pab0, pab1, pab2); if (!gphy->tssi2dbm) return -ENOMEM; gphy->dyn_tssi_tbl = true; } else { /* pabX values not set in SPROM. */ gphy->tgt_idle_tssi = 52; gphy->tssi2dbm = b43_tssi2dbm_g_table; } return 0; } static int b43_gphy_op_allocate(struct b43_wldev *dev) { struct b43_phy_g *gphy; struct b43_txpower_lo_control *lo; int err; gphy = kzalloc(sizeof(*gphy), GFP_KERNEL); if (!gphy) { err = -ENOMEM; goto error; } dev->phy.g = gphy; lo = kzalloc(sizeof(*lo), GFP_KERNEL); if (!lo) { err = -ENOMEM; goto err_free_gphy; } gphy->lo_control = lo; err = b43_gphy_init_tssi2dbm_table(dev); if (err) goto err_free_lo; return 0; err_free_lo: kfree(lo); err_free_gphy: kfree(gphy); error: return err; } static void b43_gphy_op_prepare_structs(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; struct b43_phy_g *gphy = phy->g; const void *tssi2dbm; int tgt_idle_tssi; struct b43_txpower_lo_control *lo; unsigned int i; /* tssi2dbm table is constant, so it is initialized at alloc time. * Save a copy of the pointer. */ tssi2dbm = gphy->tssi2dbm; tgt_idle_tssi = gphy->tgt_idle_tssi; /* Save the LO pointer. */ lo = gphy->lo_control; /* Zero out the whole PHY structure. */ memset(gphy, 0, sizeof(*gphy)); /* Restore pointers. */ gphy->tssi2dbm = tssi2dbm; gphy->tgt_idle_tssi = tgt_idle_tssi; gphy->lo_control = lo; memset(gphy->minlowsig, 0xFF, sizeof(gphy->minlowsig)); /* NRSSI */ for (i = 0; i < ARRAY_SIZE(gphy->nrssi); i++) gphy->nrssi[i] = -1000; for (i = 0; i < ARRAY_SIZE(gphy->nrssi_lt); i++) gphy->nrssi_lt[i] = i; gphy->lofcal = 0xFFFF; gphy->initval = 0xFFFF; gphy->interfmode = B43_INTERFMODE_NONE; /* OFDM-table address caching. */ gphy->ofdmtab_addr_direction = B43_OFDMTAB_DIRECTION_UNKNOWN; gphy->average_tssi = 0xFF; /* Local Osciallator structure */ lo->tx_bias = 0xFF; INIT_LIST_HEAD(&lo->calib_list); } static void b43_gphy_op_free(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; struct b43_phy_g *gphy = phy->g; kfree(gphy->lo_control); if (gphy->dyn_tssi_tbl) kfree(gphy->tssi2dbm); gphy->dyn_tssi_tbl = false; gphy->tssi2dbm = NULL; kfree(gphy); dev->phy.g = NULL; } static int b43_gphy_op_prepare_hardware(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; struct b43_phy_g *gphy = phy->g; struct b43_txpower_lo_control *lo = gphy->lo_control; B43_WARN_ON(phy->type != B43_PHYTYPE_G); default_baseband_attenuation(dev, &gphy->bbatt); default_radio_attenuation(dev, &gphy->rfatt); gphy->tx_control = (default_tx_control(dev) << 4); generate_rfatt_list(dev, &lo->rfatt_list); generate_bbatt_list(dev, &lo->bbatt_list); /* Commit previous writes */ b43_read32(dev, B43_MMIO_MACCTL); if (phy->rev == 1) { /* Workaround: Temporarly disable gmode through the early init * phase, as the gmode stuff is not needed for phy rev 1 */ phy->gmode = false; b43_wireless_core_reset(dev, 0); b43_phy_initg(dev); phy->gmode = true; b43_wireless_core_reset(dev, 1); } return 0; } static int b43_gphy_op_init(struct b43_wldev *dev) { b43_phy_initg(dev); return 0; } static void b43_gphy_op_exit(struct b43_wldev *dev) { b43_lo_g_cleanup(dev); } static u16 b43_gphy_op_read(struct b43_wldev *dev, u16 reg) { b43_write16f(dev, B43_MMIO_PHY_CONTROL, reg); return b43_read16(dev, B43_MMIO_PHY_DATA); } static void b43_gphy_op_write(struct b43_wldev *dev, u16 reg, u16 value) { b43_write16f(dev, B43_MMIO_PHY_CONTROL, reg); b43_write16(dev, B43_MMIO_PHY_DATA, value); } static u16 b43_gphy_op_radio_read(struct b43_wldev *dev, u16 reg) { /* Register 1 is a 32-bit register. */ B43_WARN_ON(reg == 1); /* G-PHY needs 0x80 for read access. */ reg |= 0x80; b43_write16f(dev, B43_MMIO_RADIO_CONTROL, reg); return b43_read16(dev, B43_MMIO_RADIO_DATA_LOW); } static void b43_gphy_op_radio_write(struct b43_wldev *dev, u16 reg, u16 value) { /* Register 1 is a 32-bit register. */ B43_WARN_ON(reg == 1); b43_write16f(dev, B43_MMIO_RADIO_CONTROL, reg); b43_write16(dev, B43_MMIO_RADIO_DATA_LOW, value); } static bool b43_gphy_op_supports_hwpctl(struct b43_wldev *dev) { return (dev->phy.rev >= 6); } static void b43_gphy_op_software_rfkill(struct b43_wldev *dev, bool blocked) { struct b43_phy *phy = &dev->phy; struct b43_phy_g *gphy = phy->g; unsigned int channel; might_sleep(); if (!blocked) { /* Turn radio ON */ if (phy->radio_on) return; b43_phy_write(dev, 0x0015, 0x8000); b43_phy_write(dev, 0x0015, 0xCC00); b43_phy_write(dev, 0x0015, (phy->gmode ? 0x00C0 : 0x0000)); if (gphy->radio_off_context.valid) { /* Restore the RFover values. */ b43_phy_write(dev, B43_PHY_RFOVER, gphy->radio_off_context.rfover); b43_phy_write(dev, B43_PHY_RFOVERVAL, gphy->radio_off_context.rfoverval); gphy->radio_off_context.valid = false; } channel = phy->channel; b43_gphy_channel_switch(dev, 6, 1); b43_gphy_channel_switch(dev, channel, 0); } else { /* Turn radio OFF */ u16 rfover, rfoverval; rfover = b43_phy_read(dev, B43_PHY_RFOVER); rfoverval = b43_phy_read(dev, B43_PHY_RFOVERVAL); gphy->radio_off_context.rfover = rfover; gphy->radio_off_context.rfoverval = rfoverval; gphy->radio_off_context.valid = true; b43_phy_write(dev, B43_PHY_RFOVER, rfover | 0x008C); b43_phy_write(dev, B43_PHY_RFOVERVAL, rfoverval & 0xFF73); } } static int b43_gphy_op_switch_channel(struct b43_wldev *dev, unsigned int new_channel) { if ((new_channel < 1) || (new_channel > 14)) return -EINVAL; b43_gphy_channel_switch(dev, new_channel, 0); return 0; } static unsigned int b43_gphy_op_get_default_chan(struct b43_wldev *dev) { return 1; /* Default to channel 1 */ } static void b43_gphy_op_set_rx_antenna(struct b43_wldev *dev, int antenna) { struct b43_phy *phy = &dev->phy; u16 tmp; int autodiv = 0; if (antenna == B43_ANTENNA_AUTO0 || antenna == B43_ANTENNA_AUTO1) autodiv = 1; b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_ANTDIVHELP); b43_phy_maskset(dev, B43_PHY_BBANDCFG, ~B43_PHY_BBANDCFG_RXANT, (autodiv ? B43_ANTENNA_AUTO1 : antenna) << B43_PHY_BBANDCFG_RXANT_SHIFT); if (autodiv) { tmp = b43_phy_read(dev, B43_PHY_ANTDWELL); if (antenna == B43_ANTENNA_AUTO1) tmp &= ~B43_PHY_ANTDWELL_AUTODIV1; else tmp |= B43_PHY_ANTDWELL_AUTODIV1; b43_phy_write(dev, B43_PHY_ANTDWELL, tmp); } tmp = b43_phy_read(dev, B43_PHY_ANTWRSETT); if (autodiv) tmp |= B43_PHY_ANTWRSETT_ARXDIV; else tmp &= ~B43_PHY_ANTWRSETT_ARXDIV; b43_phy_write(dev, B43_PHY_ANTWRSETT, tmp); if (autodiv) b43_phy_set(dev, B43_PHY_ANTWRSETT, B43_PHY_ANTWRSETT_ARXDIV); else { b43_phy_mask(dev, B43_PHY_ANTWRSETT, B43_PHY_ANTWRSETT_ARXDIV); } if (phy->rev >= 2) { b43_phy_set(dev, B43_PHY_OFDM61, B43_PHY_OFDM61_10); b43_phy_maskset(dev, B43_PHY_DIVSRCHGAINBACK, 0xFF00, 0x15); if (phy->rev == 2) b43_phy_write(dev, B43_PHY_ADIVRELATED, 8); else b43_phy_maskset(dev, B43_PHY_ADIVRELATED, 0xFF00, 8); } if (phy->rev >= 6) b43_phy_write(dev, B43_PHY_OFDM9B, 0xDC); b43_hf_write(dev, b43_hf_read(dev) | B43_HF_ANTDIVHELP); } static int b43_gphy_op_interf_mitigation(struct b43_wldev *dev, enum b43_interference_mitigation mode) { struct b43_phy *phy = &dev->phy; struct b43_phy_g *gphy = phy->g; int currentmode; B43_WARN_ON(phy->type != B43_PHYTYPE_G); if ((phy->rev == 0) || (!phy->gmode)) return -ENODEV; gphy->aci_wlan_automatic = false; switch (mode) { case B43_INTERFMODE_AUTOWLAN: gphy->aci_wlan_automatic = true; if (gphy->aci_enable) mode = B43_INTERFMODE_MANUALWLAN; else mode = B43_INTERFMODE_NONE; break; case B43_INTERFMODE_NONE: case B43_INTERFMODE_NONWLAN: case B43_INTERFMODE_MANUALWLAN: break; default: return -EINVAL; } currentmode = gphy->interfmode; if (currentmode == mode) return 0; if (currentmode != B43_INTERFMODE_NONE) b43_radio_interference_mitigation_disable(dev, currentmode); if (mode == B43_INTERFMODE_NONE) { gphy->aci_enable = false; gphy->aci_hw_rssi = false; } else b43_radio_interference_mitigation_enable(dev, mode); gphy->interfmode = mode; return 0; } /* https://bcm-specs.sipsolutions.net/EstimatePowerOut * This function converts a TSSI value to dBm in Q5.2 */ static s8 b43_gphy_estimate_power_out(struct b43_wldev *dev, s8 tssi) { struct b43_phy_g *gphy = dev->phy.g; s8 dbm; s32 tmp; tmp = (gphy->tgt_idle_tssi - gphy->cur_idle_tssi + tssi); tmp = clamp_val(tmp, 0x00, 0x3F); dbm = gphy->tssi2dbm[tmp]; return dbm; } static void b43_put_attenuation_into_ranges(struct b43_wldev *dev, int *_bbatt, int *_rfatt) { int rfatt = *_rfatt; int bbatt = *_bbatt; struct b43_txpower_lo_control *lo = dev->phy.g->lo_control; /* Get baseband and radio attenuation values into their permitted ranges. * Radio attenuation affects power level 4 times as much as baseband. */ /* Range constants */ const int rf_min = lo->rfatt_list.min_val; const int rf_max = lo->rfatt_list.max_val; const int bb_min = lo->bbatt_list.min_val; const int bb_max = lo->bbatt_list.max_val; while (1) { if (rfatt > rf_max && bbatt > bb_max - 4) break; /* Can not get it into ranges */ if (rfatt < rf_min && bbatt < bb_min + 4) break; /* Can not get it into ranges */ if (bbatt > bb_max && rfatt > rf_max - 1) break; /* Can not get it into ranges */ if (bbatt < bb_min && rfatt < rf_min + 1) break; /* Can not get it into ranges */ if (bbatt > bb_max) { bbatt -= 4; rfatt += 1; continue; } if (bbatt < bb_min) { bbatt += 4; rfatt -= 1; continue; } if (rfatt > rf_max) { rfatt -= 1; bbatt += 4; continue; } if (rfatt < rf_min) { rfatt += 1; bbatt -= 4; continue; } break; } *_rfatt = clamp_val(rfatt, rf_min, rf_max); *_bbatt = clamp_val(bbatt, bb_min, bb_max); } static void b43_gphy_op_adjust_txpower(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; struct b43_phy_g *gphy = phy->g; int rfatt, bbatt; u8 tx_control; b43_mac_suspend(dev); /* Calculate the new attenuation values. */ bbatt = gphy->bbatt.att; bbatt += gphy->bbatt_delta; rfatt = gphy->rfatt.att; rfatt += gphy->rfatt_delta; b43_put_attenuation_into_ranges(dev, &bbatt, &rfatt); tx_control = gphy->tx_control; if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 2)) { if (rfatt <= 1) { if (tx_control == 0) { tx_control = B43_TXCTL_PA2DB | B43_TXCTL_TXMIX; rfatt += 2; bbatt += 2; } else if (dev->dev->bus_sprom-> boardflags_lo & B43_BFL_PACTRL) { bbatt += 4 * (rfatt - 2); rfatt = 2; } } else if (rfatt > 4 && tx_control) { tx_control = 0; if (bbatt < 3) { rfatt -= 3; bbatt += 2; } else { rfatt -= 2; bbatt -= 2; } } } /* Save the control values */ gphy->tx_control = tx_control; b43_put_attenuation_into_ranges(dev, &bbatt, &rfatt); gphy->rfatt.att = rfatt; gphy->bbatt.att = bbatt; if (b43_debug(dev, B43_DBG_XMITPOWER)) b43dbg(dev->wl, "Adjusting TX power\n"); /* Adjust the hardware */ b43_phy_lock(dev); b43_radio_lock(dev); b43_set_txpower_g(dev, &gphy->bbatt, &gphy->rfatt, gphy->tx_control); b43_radio_unlock(dev); b43_phy_unlock(dev); b43_mac_enable(dev); } static enum b43_txpwr_result b43_gphy_op_recalc_txpower(struct b43_wldev *dev, bool ignore_tssi) { struct b43_phy *phy = &dev->phy; struct b43_phy_g *gphy = phy->g; unsigned int average_tssi; int cck_result, ofdm_result; int estimated_pwr, desired_pwr, pwr_adjust; int rfatt_delta, bbatt_delta; unsigned int max_pwr; /* First get the average TSSI */ cck_result = b43_phy_shm_tssi_read(dev, B43_SHM_SH_TSSI_CCK); ofdm_result = b43_phy_shm_tssi_read(dev, B43_SHM_SH_TSSI_OFDM_G); if ((cck_result < 0) && (ofdm_result < 0)) { /* No TSSI information available */ if (!ignore_tssi) goto no_adjustment_needed; cck_result = 0; ofdm_result = 0; } if (cck_result < 0) average_tssi = ofdm_result; else if (ofdm_result < 0) average_tssi = cck_result; else average_tssi = (cck_result + ofdm_result) / 2; /* Merge the average with the stored value. */ if (likely(gphy->average_tssi != 0xFF)) average_tssi = (average_tssi + gphy->average_tssi) / 2; gphy->average_tssi = average_tssi; B43_WARN_ON(average_tssi >= B43_TSSI_MAX); /* Estimate the TX power emission based on the TSSI */ estimated_pwr = b43_gphy_estimate_power_out(dev, average_tssi); B43_WARN_ON(phy->type != B43_PHYTYPE_G); max_pwr = dev->dev->bus_sprom->maxpwr_bg; if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_PACTRL) max_pwr -= 3; /* minus 0.75 */ if (unlikely(max_pwr >= INT_TO_Q52(30/*dBm*/))) { b43warn(dev->wl, "Invalid max-TX-power value in SPROM.\n"); max_pwr = INT_TO_Q52(20); /* fake it */ dev->dev->bus_sprom->maxpwr_bg = max_pwr; } /* Get desired power (in Q5.2) */ if (phy->desired_txpower < 0) desired_pwr = INT_TO_Q52(0); else desired_pwr = INT_TO_Q52(phy->desired_txpower); /* And limit it. max_pwr already is Q5.2 */ desired_pwr = clamp_val(desired_pwr, 0, max_pwr); if (b43_debug(dev, B43_DBG_XMITPOWER)) { b43dbg(dev->wl, "[TX power] current = " Q52_FMT " dBm, desired = " Q52_FMT " dBm, max = " Q52_FMT "\n", Q52_ARG(estimated_pwr), Q52_ARG(desired_pwr), Q52_ARG(max_pwr)); } /* Calculate the adjustment delta. */ pwr_adjust = desired_pwr - estimated_pwr; if (pwr_adjust == 0) goto no_adjustment_needed; /* RF attenuation delta. */ rfatt_delta = ((pwr_adjust + 7) / 8); /* Lower attenuation => Bigger power output. Negate it. */ rfatt_delta = -rfatt_delta; /* Baseband attenuation delta. */ bbatt_delta = pwr_adjust / 2; /* Lower attenuation => Bigger power output. Negate it. */ bbatt_delta = -bbatt_delta; /* RF att affects power level 4 times as much as * Baseband attennuation. Subtract it. */ bbatt_delta -= 4 * rfatt_delta; #if B43_DEBUG if (b43_debug(dev, B43_DBG_XMITPOWER)) { int dbm = pwr_adjust < 0 ? -pwr_adjust : pwr_adjust; b43dbg(dev->wl, "[TX power deltas] %s" Q52_FMT " dBm => " "bbatt-delta = %d, rfatt-delta = %d\n", (pwr_adjust < 0 ? "-" : ""), Q52_ARG(dbm), bbatt_delta, rfatt_delta); } #endif /* DEBUG */ /* So do we finally need to adjust something in hardware? */ if ((rfatt_delta == 0) && (bbatt_delta == 0)) goto no_adjustment_needed; /* Save the deltas for later when we adjust the power. */ gphy->bbatt_delta = bbatt_delta; gphy->rfatt_delta = rfatt_delta; /* We need to adjust the TX power on the device. */ return B43_TXPWR_RES_NEED_ADJUST; no_adjustment_needed: return B43_TXPWR_RES_DONE; } static void b43_gphy_op_pwork_15sec(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; struct b43_phy_g *gphy = phy->g; b43_mac_suspend(dev); //TODO: update_aci_moving_average if (gphy->aci_enable && gphy->aci_wlan_automatic) { if (!gphy->aci_enable && 1 /*TODO: not scanning? */ ) { if (0 /*TODO: bunch of conditions */ ) { phy->ops->interf_mitigation(dev, B43_INTERFMODE_MANUALWLAN); } } else if (0 /*TODO*/) { if (/*(aci_average > 1000) &&*/ !b43_gphy_aci_scan(dev)) phy->ops->interf_mitigation(dev, B43_INTERFMODE_NONE); } } else if (gphy->interfmode == B43_INTERFMODE_NONWLAN && phy->rev == 1) { //TODO: implement rev1 workaround } b43_lo_g_maintenance_work(dev); b43_mac_enable(dev); } static void b43_gphy_op_pwork_60sec(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; if (!(dev->dev->bus_sprom->boardflags_lo & B43_BFL_RSSI)) return; b43_mac_suspend(dev); b43_calc_nrssi_slope(dev); if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 8)) { u8 old_chan = phy->channel; /* VCO Calibration */ if (old_chan >= 8) b43_switch_channel(dev, 1); else b43_switch_channel(dev, 13); b43_switch_channel(dev, old_chan); } b43_mac_enable(dev); } const struct b43_phy_operations b43_phyops_g = { .allocate = b43_gphy_op_allocate, .free = b43_gphy_op_free, .prepare_structs = b43_gphy_op_prepare_structs, .prepare_hardware = b43_gphy_op_prepare_hardware, .init = b43_gphy_op_init, .exit = b43_gphy_op_exit, .phy_read = b43_gphy_op_read, .phy_write = b43_gphy_op_write, .radio_read = b43_gphy_op_radio_read, .radio_write = b43_gphy_op_radio_write, .supports_hwpctl = b43_gphy_op_supports_hwpctl, .software_rfkill = b43_gphy_op_software_rfkill, .switch_analog = b43_phyop_switch_analog_generic, .switch_channel = b43_gphy_op_switch_channel, .get_default_chan = b43_gphy_op_get_default_chan, .set_rx_antenna = b43_gphy_op_set_rx_antenna, .interf_mitigation = b43_gphy_op_interf_mitigation, .recalc_txpower = b43_gphy_op_recalc_txpower, .adjust_txpower = b43_gphy_op_adjust_txpower, .pwork_15sec = b43_gphy_op_pwork_15sec, .pwork_60sec = b43_gphy_op_pwork_60sec, };
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