diff options
Diffstat (limited to 'drivers/net/wireless/bcm43xx/bcm43xx_radio.c')
| -rw-r--r-- | drivers/net/wireless/bcm43xx/bcm43xx_radio.c | 1766 |
1 files changed, 1766 insertions, 0 deletions
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_radio.c b/drivers/net/wireless/bcm43xx/bcm43xx_radio.c new file mode 100644 index 00000000000..1e65658552b --- /dev/null +++ b/drivers/net/wireless/bcm43xx/bcm43xx_radio.c @@ -0,0 +1,1766 @@ +/* + + Broadcom BCM43xx wireless driver + + Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>, + Stefano Brivio <st3@riseup.net> + Michael Buesch <mbuesch@freenet.de> + Danny van Dyk <kugelfang@gentoo.org> + Andreas Jaggi <andreas.jaggi@waterwave.ch> + + Some parts of the code in this file are derived from the ipw2200 + driver Copyright(c) 2003 - 2004 Intel Corporation. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING. If not, write to + the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, + Boston, MA 02110-1301, USA. + +*/ + +#include <linux/delay.h> + +#include "bcm43xx.h" +#include "bcm43xx_main.h" +#include "bcm43xx_phy.h" +#include "bcm43xx_radio.h" +#include "bcm43xx_ilt.h" + + +/* Table for bcm43xx_radio_calibrationvalue() */ +static const u16 rcc_table[16] = { + 0x0002, 0x0003, 0x0001, 0x000F, + 0x0006, 0x0007, 0x0005, 0x000F, + 0x000A, 0x000B, 0x0009, 0x000F, + 0x000E, 0x000F, 0x000D, 0x000F, +}; + +/* Reverse the bits of a 4bit value. + * Example: 1101 is flipped 1011 + */ +static u16 flip_4bit(u16 value) +{ + u16 flipped = 0x0000; + + assert((value & ~0x000F) == 0x0000); + + flipped |= (value & 0x0001) << 3; + flipped |= (value & 0x0002) << 1; + flipped |= (value & 0x0004) >> 1; + flipped |= (value & 0x0008) >> 3; + + return flipped; +} + +/* Get the freq, as it has to be written to the device. */ +static inline +u16 channel2freq_bg(u8 channel) +{ + /* Frequencies are given as frequencies_bg[index] + 2.4GHz + * Starting with channel 1 + */ + static const u16 frequencies_bg[14] = { + 12, 17, 22, 27, + 32, 37, 42, 47, + 52, 57, 62, 67, + 72, 84, + }; + + assert(channel >= 1 && channel <= 14); + + return frequencies_bg[channel - 1]; +} + +/* Get the freq, as it has to be written to the device. */ +static inline +u16 channel2freq_a(u8 channel) +{ + assert(channel <= 200); + + return (5000 + 5 * channel); +} + +void bcm43xx_radio_lock(struct bcm43xx_private *bcm) +{ + u32 status; + + status = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD); + status |= BCM43xx_SBF_RADIOREG_LOCK; + bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, status); + udelay(10); +} + +void bcm43xx_radio_unlock(struct bcm43xx_private *bcm) +{ + u32 status; + + bcm43xx_read16(bcm, BCM43xx_MMIO_PHY_VER); /* dummy read */ + status = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD); + status &= ~BCM43xx_SBF_RADIOREG_LOCK; + bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, status); +} + +u16 bcm43xx_radio_read16(struct bcm43xx_private *bcm, u16 offset) +{ + struct bcm43xx_phyinfo *phy = bcm->current_core->phy; + struct bcm43xx_radioinfo *radio = bcm->current_core->radio; + + switch (phy->type) { + case BCM43xx_PHYTYPE_A: + offset |= 0x0040; + break; + case BCM43xx_PHYTYPE_B: + if (radio->version == 0x2053) { + if (offset < 0x70) + offset += 0x80; + else if (offset < 0x80) + offset += 0x70; + } else if (radio->version == 0x2050) { + offset |= 0x80; + } else + assert(0); + break; + case BCM43xx_PHYTYPE_G: + offset |= 0x80; + break; + } + + bcm43xx_write16(bcm, BCM43xx_MMIO_RADIO_CONTROL, offset); + return bcm43xx_read16(bcm, BCM43xx_MMIO_RADIO_DATA_LOW); +} + +void bcm43xx_radio_write16(struct bcm43xx_private *bcm, u16 offset, u16 val) +{ + bcm43xx_write16(bcm, BCM43xx_MMIO_RADIO_CONTROL, offset); + bcm43xx_write16(bcm, BCM43xx_MMIO_RADIO_DATA_LOW, val); +} + +static void bcm43xx_set_all_gains(struct bcm43xx_private *bcm, + s16 first, s16 second, s16 third) +{ + struct bcm43xx_phyinfo *phy = bcm->current_core->phy; + u16 i; + u16 start = 0x08, end = 0x18; + u16 offset = 0x0400; + u16 tmp; + + if (phy->rev <= 1) { + offset = 0x5000; + start = 0x10; + end = 0x20; + } + + for (i = 0; i < 4; i++) + bcm43xx_ilt_write16(bcm, offset + i, first); + + for (i = start; i < end; i++) + bcm43xx_ilt_write16(bcm, offset + i, second); + + if (third != -1) { + tmp = ((u16)third << 14) | ((u16)third << 6); + bcm43xx_phy_write(bcm, 0x04A0, + (bcm43xx_phy_read(bcm, 0x04A0) & 0xBFBF) | tmp); + bcm43xx_phy_write(bcm, 0x04A1, + (bcm43xx_phy_read(bcm, 0x04A1) & 0xBFBF) | tmp); + bcm43xx_phy_write(bcm, 0x04A2, + (bcm43xx_phy_read(bcm, 0x04A2) & 0xBFBF) | tmp); + } + bcm43xx_dummy_transmission(bcm); +} + +static void bcm43xx_set_original_gains(struct bcm43xx_private *bcm) +{ + struct bcm43xx_phyinfo *phy = bcm->current_core->phy; + u16 i, tmp; + u16 offset = 0x0400; + u16 start = 0x0008, end = 0x0018; + + if (phy->rev <= 1) { + offset = 0x5000; + start = 0x0010; + end = 0x0020; + } + + for (i = 0; i < 4; i++) { + tmp = (i & 0xFFFC); + tmp |= (i & 0x0001) << 1; + tmp |= (i & 0x0002) >> 1; + + bcm43xx_ilt_write16(bcm, offset + i, tmp); + } + + for (i = start; i < end; i++) + bcm43xx_ilt_write16(bcm, offset + i, i - start); + + bcm43xx_phy_write(bcm, 0x04A0, + (bcm43xx_phy_read(bcm, 0x04A0) & 0xBFBF) | 0x4040); + bcm43xx_phy_write(bcm, 0x04A1, + (bcm43xx_phy_read(bcm, 0x04A1) & 0xBFBF) | 0x4040); + bcm43xx_phy_write(bcm, 0x04A2, + (bcm43xx_phy_read(bcm, 0x04A2) & 0xBFBF) | 0x4000); + bcm43xx_dummy_transmission(bcm); +} + +/* Synthetic PU workaround */ +static void bcm43xx_synth_pu_workaround(struct bcm43xx_private *bcm, u8 channel) +{ + struct bcm43xx_radioinfo *radio = bcm->current_core->radio; + + if (radio->version != 0x2050 || radio->revision >= 6) { + /* We do not need the workaround. */ + return; + } + + if (channel <= 10) { + bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL, + channel2freq_bg(channel + 4)); + } else { + bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL, + channel2freq_bg(1)); + } + udelay(100); + bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL, + channel2freq_bg(channel)); +} + +u8 bcm43xx_radio_aci_detect(struct bcm43xx_private *bcm, u8 channel) +{ + struct bcm43xx_radioinfo *radio = bcm->current_core->radio; + u8 ret = 0; + u16 saved, rssi, temp; + int i, j = 0; + + saved = bcm43xx_phy_read(bcm, 0x0403); + bcm43xx_radio_selectchannel(bcm, channel, 0); + bcm43xx_phy_write(bcm, 0x0403, (saved & 0xFFF8) | 5); + if (radio->aci_hw_rssi) + rssi = bcm43xx_phy_read(bcm, 0x048A) & 0x3F; + else + rssi = saved & 0x3F; + /* clamp temp to signed 5bit */ + if (rssi > 32) + rssi -= 64; + for (i = 0;i < 100; i++) { + temp = (bcm43xx_phy_read(bcm, 0x047F) >> 8) & 0x3F; + if (temp > 32) + temp -= 64; + if (temp < rssi) + j++; + if (j >= 20) + ret = 1; + } + bcm43xx_phy_write(bcm, 0x0403, saved); + + return ret; +} + +u8 bcm43xx_radio_aci_scan(struct bcm43xx_private *bcm) +{ + struct bcm43xx_phyinfo *phy = bcm->current_core->phy; + struct bcm43xx_radioinfo *radio = bcm->current_core->radio; + u8 ret[13]; + unsigned int channel = radio->channel; + unsigned int i, j, start, end; + unsigned long phylock_flags; + + if (!((phy->type == BCM43xx_PHYTYPE_G) && (phy->rev > 0))) + return 0; + + bcm43xx_phy_lock(bcm, phylock_flags); + bcm43xx_radio_lock(bcm); + bcm43xx_phy_write(bcm, 0x0802, + bcm43xx_phy_read(bcm, 0x0802) & 0xFFFC); + bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS, + bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS) & 0x7FFF); + bcm43xx_set_all_gains(bcm, 3, 8, 1); + + start = (channel - 5 > 0) ? channel - 5 : 1; + end = (channel + 5 < 14) ? channel + 5 : 13; + + for (i = start; i <= end; i++) { + if (abs(channel - i) > 2) + ret[i-1] = bcm43xx_radio_aci_detect(bcm, i); + } + bcm43xx_radio_selectchannel(bcm, channel, 0); + bcm43xx_phy_write(bcm, 0x0802, + (bcm43xx_phy_read(bcm, 0x0802) & 0xFFFC) | 0x0003); + bcm43xx_phy_write(bcm, 0x0403, + bcm43xx_phy_read(bcm, 0x0403) & 0xFFF8); + bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS, + bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS) | 0x8000); + bcm43xx_set_original_gains(bcm); + 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; + } + bcm43xx_radio_unlock(bcm); + bcm43xx_phy_unlock(bcm, phylock_flags); + + return ret[channel - 1]; +} + +/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */ +void bcm43xx_nrssi_hw_write(struct bcm43xx_private *bcm, u16 offset, s16 val) +{ + bcm43xx_phy_write(bcm, BCM43xx_PHY_NRSSILT_CTRL, offset); + bcm43xx_phy_write(bcm, BCM43xx_PHY_NRSSILT_DATA, (u16)val); +} + +/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */ +s16 bcm43xx_nrssi_hw_read(struct bcm43xx_private *bcm, u16 offset) +{ + u16 val; + + bcm43xx_phy_write(bcm, BCM43xx_PHY_NRSSILT_CTRL, offset); + val = bcm43xx_phy_read(bcm, BCM43xx_PHY_NRSSILT_DATA); + + return (s16)val; +} + +/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */ +void bcm43xx_nrssi_hw_update(struct bcm43xx_private *bcm, u16 val) +{ + u16 i; + s16 tmp; + + for (i = 0; i < 64; i++) { + tmp = bcm43xx_nrssi_hw_read(bcm, i); + tmp -= val; + tmp = limit_value(tmp, -32, 31); + bcm43xx_nrssi_hw_write(bcm, i, tmp); + } +} + +/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */ +void bcm43xx_nrssi_mem_update(struct bcm43xx_private *bcm) +{ + s16 i, delta; + s32 tmp; + + delta = 0x1F - bcm->current_core->radio->nrssi[0]; + for (i = 0; i < 64; i++) { + tmp = (i - delta) * bcm->current_core->radio->nrssislope; + tmp /= 0x10000; + tmp += 0x3A; + tmp = limit_value(tmp, 0, 0x3F); + bcm->current_core->radio->nrssi_lt[i] = tmp; + } +} + +static void bcm43xx_calc_nrssi_offset(struct bcm43xx_private *bcm) +{ + struct bcm43xx_phyinfo *phy = bcm->current_core->phy; + u16 backup[20] = { 0 }; + s16 v47F; + u16 i; + u16 saved = 0xFFFF; + + backup[0] = bcm43xx_phy_read(bcm, 0x0001); + backup[1] = bcm43xx_phy_read(bcm, 0x0811); + backup[2] = bcm43xx_phy_read(bcm, 0x0812); + backup[3] = bcm43xx_phy_read(bcm, 0x0814); + backup[4] = bcm43xx_phy_read(bcm, 0x0815); + backup[5] = bcm43xx_phy_read(bcm, 0x005A); + backup[6] = bcm43xx_phy_read(bcm, 0x0059); + backup[7] = bcm43xx_phy_read(bcm, 0x0058); + backup[8] = bcm43xx_phy_read(bcm, 0x000A); + backup[9] = bcm43xx_phy_read(bcm, 0x0003); + backup[10] = bcm43xx_radio_read16(bcm, 0x007A); + backup[11] = bcm43xx_radio_read16(bcm, 0x0043); + + bcm43xx_phy_write(bcm, 0x0429, + bcm43xx_phy_read(bcm, 0x0429) & 0x7FFF); + bcm43xx_phy_write(bcm, 0x0001, + (bcm43xx_phy_read(bcm, 0x0001) & 0x3FFF) | 0x4000); + bcm43xx_phy_write(bcm, 0x0811, + bcm43xx_phy_read(bcm, 0x0811) | 0x000C); + bcm43xx_phy_write(bcm, 0x0812, + (bcm43xx_phy_read(bcm, 0x0812) & 0xFFF3) | 0x0004); + bcm43xx_phy_write(bcm, 0x0802, + bcm43xx_phy_read(bcm, 0x0802) & ~(0x1 | 0x2)); + if (phy->rev >= 6) { + backup[12] = bcm43xx_phy_read(bcm, 0x002E); + backup[13] = bcm43xx_phy_read(bcm, 0x002F); + backup[14] = bcm43xx_phy_read(bcm, 0x080F); + backup[15] = bcm43xx_phy_read(bcm, 0x0810); + backup[16] = bcm43xx_phy_read(bcm, 0x0801); + backup[17] = bcm43xx_phy_read(bcm, 0x0060); + backup[18] = bcm43xx_phy_read(bcm, 0x0014); + backup[19] = bcm43xx_phy_read(bcm, 0x0478); + + bcm43xx_phy_write(bcm, 0x002E, 0); + bcm43xx_phy_write(bcm, 0x002F, 0); + bcm43xx_phy_write(bcm, 0x080F, 0); + bcm43xx_phy_write(bcm, 0x0810, 0); + bcm43xx_phy_write(bcm, 0x0478, + bcm43xx_phy_read(bcm, 0x0478) | 0x0100); + bcm43xx_phy_write(bcm, 0x0801, + bcm43xx_phy_read(bcm, 0x0801) | 0x0040); + bcm43xx_phy_write(bcm, 0x0060, + bcm43xx_phy_read(bcm, 0x0060) | 0x0040); + bcm43xx_phy_write(bcm, 0x0014, + bcm43xx_phy_read(bcm, 0x0014) | 0x0200); + } + bcm43xx_radio_write16(bcm, 0x007A, + bcm43xx_radio_read16(bcm, 0x007A) | 0x0070); + bcm43xx_radio_write16(bcm, 0x007A, + bcm43xx_radio_read16(bcm, 0x007A) | 0x0080); + udelay(30); + + v47F = (s16)((bcm43xx_phy_read(bcm, 0x047F) >> 8) & 0x003F); + if (v47F >= 0x20) + v47F -= 0x40; + if (v47F == 31) { + for (i = 7; i >= 4; i--) { + bcm43xx_radio_write16(bcm, 0x007B, i); + udelay(20); + v47F = (s16)((bcm43xx_phy_read(bcm, 0x047F) >> 8) & 0x003F); + if (v47F >= 0x20) + v47F -= 0x40; + if (v47F < 31 && saved == 0xFFFF) + saved = i; + } + if (saved == 0xFFFF) + saved = 4; + } else { + bcm43xx_radio_write16(bcm, 0x007A, + bcm43xx_radio_read16(bcm, 0x007A) & 0x007F); + bcm43xx_phy_write(bcm, 0x0814, + bcm43xx_phy_read(bcm, 0x0814) | 0x0001); + bcm43xx_phy_write(bcm, 0x0815, + bcm43xx_phy_read(bcm, 0x0815) & 0xFFFE); + bcm43xx_phy_write(bcm, 0x0811, + bcm43xx_phy_read(bcm, 0x0811) | 0x000C); + bcm43xx_phy_write(bcm, 0x0812, + bcm43xx_phy_read(bcm, 0x0812) | 0x000C); + bcm43xx_phy_write(bcm, 0x0811, + bcm43xx_phy_read(bcm, 0x0811) | 0x0030); + bcm43xx_phy_write(bcm, 0x0812, + bcm43xx_phy_read(bcm, 0x0812) | 0x0030); + bcm43xx_phy_write(bcm, 0x005A, 0x0480); + bcm43xx_phy_write(bcm, 0x0059, 0x0810); + bcm43xx_phy_write(bcm, 0x0058, 0x000D); + if (phy->rev == 0) { + bcm43xx_phy_write(bcm, 0x0003, 0x0122); + } else { + bcm43xx_phy_write(bcm, 0x000A, + bcm43xx_phy_read(bcm, 0x000A) + | 0x2000); + } + bcm43xx_phy_write(bcm, 0x0814, + bcm43xx_phy_read(bcm, 0x0814) | 0x0004); + bcm43xx_phy_write(bcm, 0x0815, + bcm43xx_phy_read(bcm, 0x0815) & 0xFFFB); + bcm43xx_phy_write(bcm, 0x0003, + (bcm43xx_phy_read(bcm, 0x0003) & 0xFF9F) + | 0x0040); + bcm43xx_phy_write(bcm, 0x007A, + bcm43xx_phy_read(bcm, 0x007A) | 0x000F); + bcm43xx_set_all_gains(bcm, 3, 0, 1); + bcm43xx_radio_write16(bcm, 0x0043, + (bcm43xx_radio_read16(bcm, 0x0043) + & 0x00F0) | 0x000F); + udelay(30); + v47F = (s16)((bcm43xx_phy_read(bcm, 0x047F) >> 8) & 0x003F); + if (v47F >= 0x20) + v47F -= 0x40; + if (v47F == -32) { + for (i = 0; i < 4; i++) { + bcm43xx_radio_write16(bcm, 0x007B, i); + udelay(20); + v47F = (s16)((bcm43xx_phy_read(bcm, 0x047F) >> 8) & 0x003F); + if (v47F >= 0x20) + v47F -= 0x40; + if (v47F > -31 && saved == 0xFFFF) + saved = i; + } + if (saved == 0xFFFF) + saved = 3; + } else + saved = 0; + } + bcm43xx_radio_write16(bcm, 0x007B, saved); + + if (phy->rev >= 6) { + bcm43xx_phy_write(bcm, 0x002E, backup[12]); + bcm43xx_phy_write(bcm, 0x002F, backup[13]); + bcm43xx_phy_write(bcm, 0x080F, backup[14]); + bcm43xx_phy_write(bcm, 0x0810, backup[15]); + } + bcm43xx_phy_write(bcm, 0x0814, backup[3]); + bcm43xx_phy_write(bcm, 0x0815, backup[4]); + bcm43xx_phy_write(bcm, 0x005A, backup[5]); + bcm43xx_phy_write(bcm, 0x0059, backup[6]); + bcm43xx_phy_write(bcm, 0x0058, backup[7]); + bcm43xx_phy_write(bcm, 0x000A, backup[8]); + bcm43xx_phy_write(bcm, 0x0003, backup[9]); + bcm43xx_radio_write16(bcm, 0x0043, backup[11]); + bcm43xx_radio_write16(bcm, 0x007A, backup[10]); + bcm43xx_phy_write(bcm, 0x0802, + bcm43xx_phy_read(bcm, 0x0802) | 0x1 | 0x2); + bcm43xx_phy_write(bcm, 0x0429, + bcm43xx_phy_read(bcm, 0x0429) | 0x8000); + bcm43xx_set_original_gains(bcm); + if (phy->rev >= 6) { + bcm43xx_phy_write(bcm, 0x0801, backup[16]); + bcm43xx_phy_write(bcm, 0x0060, backup[17]); + bcm43xx_phy_write(bcm, 0x0014, backup[18]); + bcm43xx_phy_write(bcm, 0x0478, backup[19]); + } + bcm43xx_phy_write(bcm, 0x0001, backup[0]); + bcm43xx_phy_write(bcm, 0x0812, backup[2]); + bcm43xx_phy_write(bcm, 0x0811, backup[1]); +} + +void bcm43xx_calc_nrssi_slope(struct bcm43xx_private *bcm) +{ + struct bcm43xx_phyinfo *phy = bcm->current_core->phy; + struct bcm43xx_radioinfo *radio = bcm->current_core->radio; + u16 backup[18] = { 0 }; + u16 tmp; + s16 nrssi0, nrssi1; + + switch (phy->type) { + case BCM43xx_PHYTYPE_B: + backup[0] = bcm43xx_radio_read16(bcm, 0x007A); + backup[1] = bcm43xx_radio_read16(bcm, 0x0052); + backup[2] = bcm43xx_radio_read16(bcm, 0x0043); + backup[3] = bcm43xx_phy_read(bcm, 0x0030); + backup[4] = bcm43xx_phy_read(bcm, 0x0026); + backup[5] = bcm43xx_phy_read(bcm, 0x0015); + backup[6] = bcm43xx_phy_read(bcm, 0x002A); + backup[7] = bcm43xx_phy_read(bcm, 0x0020); + backup[8] = bcm43xx_phy_read(bcm, 0x005A); + backup[9] = bcm43xx_phy_read(bcm, 0x0059); + backup[10] = bcm43xx_phy_read(bcm, 0x0058); + backup[11] = bcm43xx_read16(bcm, 0x03E2); + backup[12] = bcm43xx_read16(bcm, 0x03E6); + backup[13] = bcm43xx_read16(bcm, BCM43xx_MMIO_CHANNEL_EXT); + + tmp = bcm43xx_radio_read16(bcm, 0x007A); + tmp &= (phy->rev >= 5) ? 0x007F : 0x000F; + bcm43xx_radio_write16(bcm, 0x007A, tmp); + bcm43xx_phy_write(bcm, 0x0030, 0x00FF); + bcm43xx_write16(bcm, 0x03EC, 0x7F7F); + bcm43xx_phy_write(bcm, 0x0026, 0x0000); + bcm43xx_phy_write(bcm, 0x0015, + bcm43xx_phy_read(bcm, 0x0015) | 0x0020); + bcm43xx_phy_write(bcm, 0x002A, 0x08A3); + bcm43xx_radio_write16(bcm, 0x007A, + bcm43xx_radio_read16(bcm, 0x007A) | 0x0080); + + nrssi0 = (s16)bcm43xx_phy_read(bcm, 0x0027); + bcm43xx_radio_write16(bcm, 0x007A, + bcm43xx_radio_read16(bcm, 0x007A) & 0x007F); + if (phy->rev >= 2) { + bcm43xx_write16(bcm, 0x03E6, 0x0040); + } else if (phy->rev == 0) { + bcm43xx_write16(bcm, 0x03E6, 0x0122); + } else { + bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL_EXT, + bcm43xx_read16(bcm, BCM43xx_MMIO_CHANNEL_EXT) & 0x2000); + } + bcm43xx_phy_write(bcm, 0x0020, 0x3F3F); + bcm43xx_phy_write(bcm, 0x0015, 0xF330); + bcm43xx_radio_write16(bcm, 0x005A, 0x0060); + bcm43xx_radio_write16(bcm, 0x0043, + bcm43xx_radio_read16(bcm, 0x0043) & 0x00F0); + bcm43xx_phy_write(bcm, 0x005A, 0x0480); + bcm43xx_phy_write(bcm, 0x0059, 0x0810); + bcm43xx_phy_write(bcm, 0x0058, 0x000D); + udelay(20); + + nrssi1 = (s16)bcm43xx_phy_read(bcm, 0x0027); + bcm43xx_phy_write(bcm, 0x0030, backup[3]); + bcm43xx_radio_write16(bcm, 0x007A, backup[0]); + bcm43xx_write16(bcm, 0x03E2, backup[11]); + bcm43xx_phy_write(bcm, 0x0026, backup[4]); + bcm43xx_phy_write(bcm, 0x0015, backup[5]); + bcm43xx_phy_write(bcm, 0x002A, backup[6]); + bcm43xx_synth_pu_workaround(bcm, radio->channel); + if (phy->rev != 0) + bcm43xx_write16(bcm, 0x03F4, backup[13]); + + bcm43xx_phy_write(bcm, 0x0020, backup[7]); + bcm43xx_phy_write(bcm, 0x005A, backup[8]); + bcm43xx_phy_write(bcm, 0x0059, backup[9]); + bcm43xx_phy_write(bcm, 0x0058, backup[10]); + bcm43xx_radio_write16(bcm, 0x0052, backup[1]); + bcm43xx_radio_write16(bcm, 0x0043, backup[2]); + + if (nrssi0 == nrssi1) + radio->nrssislope = 0x00010000; + else + radio->nrssislope = 0x00400000 / (nrssi0 - nrssi1); + + if (nrssi0 <= -4) { + radio->nrssi[0] = nrssi0; + radio->nrssi[1] = nrssi1; + } + break; + case BCM43xx_PHYTYPE_G: +//FIXME: Something is broken here. This is called when enabling WLAN interfmode. +// If this is done at runtime, I get an XMIT ERROR and transmission is +// broken. I guess some important register is overwritten by accident. +// The XMIT ERROR comes from the dummy_transmissions in set_gains. + if (radio->revision >= 9) + return; + if (radio->revision == 8) + bcm43xx_calc_nrssi_offset(bcm); + + bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS, + bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS) & 0x7FFF); + bcm43xx_phy_write(bcm, 0x0802, + bcm43xx_phy_read(bcm, 0x0802) & 0xFFFC); + backup[7] = bcm43xx_read16(bcm, 0x03E2); + bcm43xx_write16(bcm, 0x03E2, + bcm43xx_read16(bcm, 0x03E2) | 0x8000); + backup[0] = bcm43xx_radio_read16(bcm, 0x007A); + backup[1] = bcm43xx_radio_read16(bcm, 0x0052); + backup[2] = bcm43xx_radio_read16(bcm, 0x0043); + backup[3] = bcm43xx_phy_read(bcm, 0x0015); + backup[4] = bcm43xx_phy_read(bcm, 0x005A); + backup[5] = bcm43xx_phy_read(bcm, 0x0059); + backup[6] = bcm43xx_phy_read(bcm, 0x0058); + backup[8] = bcm43xx_read16(bcm, 0x03E6); + backup[9] = bcm43xx_read16(bcm, BCM43xx_MMIO_CHANNEL_EXT); + if (phy->rev >= 3) { + backup[10] = bcm43xx_phy_read(bcm, 0x002E); + backup[11] = bcm43xx_phy_read(bcm, 0x002F); + backup[12] = bcm43xx_phy_read(bcm, 0x080F); + backup[13] = bcm43xx_phy_read(bcm, BCM43xx_PHY_G_LO_CONTROL); + backup[14] = bcm43xx_phy_read(bcm, 0x0801); + backup[15] = bcm43xx_phy_read(bcm, 0x0060); + backup[16] = bcm43xx_phy_read(bcm, 0x0014); + backup[17] = bcm43xx_phy_read(bcm, 0x0478); + bcm43xx_phy_write(bcm, 0x002E, 0); + bcm43xx_phy_write(bcm, BCM43xx_PHY_G_LO_CONTROL, 0); + switch (phy->rev) { + case 4: case 6: case 7: + bcm43xx_phy_write(bcm, 0x0478, + bcm43xx_phy_read(bcm, 0x0478) + | 0x0100); + bcm43xx_phy_write(bcm, 0x0801, + bcm43xx_phy_read(bcm, 0x0801) + | 0x0040); + break; + case 3: case 5: + bcm43xx_phy_write(bcm, 0x0801, + bcm43xx_phy_read(bcm, 0x0801) + & 0xFFBF); + break; + } + bcm43xx_phy_write(bcm, 0x0060, + bcm43xx_phy_read(bcm, 0x0060) + | 0x0040); + bcm43xx_phy_write(bcm, 0x0014, + bcm43xx_phy_read(bcm, 0x0014) + | 0x0200); + } + bcm43xx_radio_write16(bcm, 0x007A, + bcm43xx_radio_read16(bcm, 0x007A) | 0x0070); + bcm43xx_set_all_gains(bcm, 0, 8, 0); + bcm43xx_radio_write16(bcm, 0x007A, + bcm43xx_radio_read16(bcm, 0x007A) & 0x00F7); + if (phy->rev >= 2) { + bcm43xx_phy_write(bcm, 0x0811, + (bcm43xx_phy_read(bcm, 0x0811) & 0xFFCF) | 0x0030); + bcm43xx_phy_write(bcm, 0x0812, + (bcm43xx_phy_read(bcm, 0x0812) & 0xFFCF) | 0x0010); + } + bcm43xx_radio_write16(bcm, 0x007A, + bcm43xx_radio_read16(bcm, 0x007A) | 0x0080); + udelay(20); + + nrssi0 = (s16)((bcm43xx_phy_read(bcm, 0x047F) >> 8) & 0x003F); + if (nrssi0 >= 0x0020) + nrssi0 -= 0x0040; + + bcm43xx_radio_write16(bcm, 0x007A, + bcm43xx_radio_read16(bcm, 0x007A) & 0x007F); + if (phy->rev >= 2) { + bcm43xx_phy_write(bcm, 0x0003, + (bcm43xx_phy_read(bcm, 0x0003) + & 0xFF9F) | 0x0040); + } + + bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL_EXT, + bcm43xx_read16(bcm, BCM43xx_MMIO_CHANNEL_EXT) + | 0x2000); + bcm43xx_radio_write16(bcm, 0x007A, + bcm43xx_radio_read16(bcm, 0x007A) | 0x000F); + bcm43xx_phy_write(bcm, 0x0015, 0xF330); + if (phy->rev >= 2) { + bcm43xx_phy_write(bcm, 0x0812, + (bcm43xx_phy_read(bcm, 0x0812) & 0xFFCF) | 0x0020); + bcm43xx_phy_write(bcm, 0x0811, + (bcm43xx_phy_read(bcm, 0x0811) & 0xFFCF) | 0x0020); + } + + bcm43xx_set_all_gains(bcm, 3, 0, 1); + if (radio->revision == 8) { + bcm43xx_radio_write16(bcm, 0x0043, 0x001F); + } else { + tmp = bcm43xx_radio_read16(bcm, 0x0052) & 0xFF0F; + bcm43xx_radio_write16(bcm, 0x0052, tmp | 0x0060); + tmp = bcm43xx_radio_read16(bcm, 0x0043) & 0xFFF0; + bcm43xx_radio_write16(bcm, 0x0043, tmp | 0x0009); + } + bcm43xx_phy_write(bcm, 0x005A, 0x0480); + bcm43xx_phy_write(bcm, 0x0059, 0x0810); + bcm43xx_phy_write(bcm, 0x0058, 0x000D); + udelay(20); + nrssi1 = (s16)((bcm43xx_phy_read(bcm, 0x047F) >> 8) & 0x003F); + if (nrssi1 >= 0x0020) + nrssi1 -= 0x0040; + if (nrssi0 == nrssi1) + radio->nrssislope = 0x00010000; + else + radio->nrssislope = 0x00400000 / (nrssi0 - nrssi1); + if (nrssi0 >= -4) { + radio->nrssi[0] = nrssi1; + radio->nrssi[1] = nrssi0; + } + if (phy->rev >= 3) { + bcm43xx_phy_write(bcm, 0x002E, backup[10]); + bcm43xx_phy_write(bcm, 0x002F, backup[11]); + bcm43xx_phy_write(bcm, 0x080F, backup[12]); + bcm43xx_phy_write(bcm, BCM43xx_PHY_G_LO_CONTROL, backup[13]); + } + if (phy->rev >= 2) { + bcm43xx_phy_write(bcm, 0x0812, + bcm43xx_phy_read(bcm, 0x0812) & 0xFFCF); + bcm43xx_phy_write(bcm, 0x0811, + bcm43xx_phy_read(bcm, 0x0811) & 0xFFCF); + } + + bcm43xx_radio_write16(bcm, 0x007A, backup[0]); + bcm43xx_radio_write16(bcm, 0x0052, backup[1]); + bcm43xx_radio_write16(bcm, 0x0043, backup[2]); + bcm43xx_write16(bcm, 0x03E2, backup[7]); + bcm43xx_write16(bcm, 0x03E6, backup[8]); + bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL_EXT, backup[9]); + bcm43xx_phy_write(bcm, 0x0015, backup[3]); + bcm43xx_phy_write(bcm, 0x005A, backup[4]); + bcm43xx_phy_write(bcm, 0x0059, backup[5]); + bcm43xx_phy_write(bcm, 0x0058, backup[6]); + bcm43xx_synth_pu_workaround(bcm, radio->channel); + bcm43xx_phy_write(bcm, 0x0802, + bcm43xx_phy_read(bcm, 0x0802) | (0x0001 | 0x0002)); + bcm43xx_set_original_gains(bcm); + bcm43xx_phy_write(bcm, 0x0802, + bcm43xx_phy_read(bcm, 0x0802) | 0x8000); + if (phy->rev >= 3) { + bcm43xx_phy_write(bcm, 0x0801, backup[14]); + bcm43xx_phy_write(bcm, 0x0060, backup[15]); + bcm43xx_phy_write(bcm, 0x0014, backup[16]); + bcm43xx_phy_write(bcm, 0x0478, backup[17]); + } + bcm43xx_nrssi_mem_update(bcm); + bcm43xx_calc_nrssi_threshold(bcm); + break; + default: + assert(0); + } +} + +void bcm43xx_calc_nrssi_threshold(struct bcm43xx_private *bcm) +{ + struct bcm43xx_phyinfo *phy = bcm->current_core->phy; + struct bcm43xx_radioinfo *radio = bcm->current_core->radio; + s16 threshold; + s32 a, b; + int tmp; + s16 tmp16; + u16 tmp_u16; + + switch (phy->type) { + case BCM43xx_PHYTYPE_B: { + int radiotype = 0; + + if (phy->rev < 2) + return; + if (radio->version != 0x2050) + return; + if (!(bcm->sprom.boardflags & BCM43xx_BFL_RSSI)) + return; + + tmp = radio->revision; + if ((radio->manufact == 0x175 && tmp == 5) || + (radio->manufact == 0x17F && (tmp == 3 || tmp == 4))) + radiotype = 1; + + if (radiotype == 1) { + threshold = bcm->current_core->radio->nrssi[1] - 5; + } else { + threshold = 40 * radio->nrssi[0]; + threshold += 33 * (radio->nrssi[1] - radio->nrssi[0]); + threshold += 20; + threshold /= 10; + } + threshold = limit_value(threshold, 0, 0x3E); + bcm43xx_phy_read(bcm, 0x0020); /* dummy read */ + bcm43xx_phy_write(bcm, 0x0020, (((u16)threshold) << 8) | 0x001C); + + if (radiotype == 1) { + bcm43xx_phy_write(bcm, 0x0087, 0x0E0D); + bcm43xx_phy_write(bcm, 0x0086, 0x0C0B); + bcm43xx_phy_write(bcm, 0x0085, 0x0A09); + bcm43xx_phy_write(bcm, 0x0084, 0x0808); + bcm43xx_phy_write(bcm, 0x0083, 0x0808); + bcm43xx_phy_write(bcm, 0x0082, 0x0604); + bcm43xx_phy_write(bcm, 0x0081, 0x0302); + bcm43xx_phy_write(bcm, 0x0080, 0x0100); + } + break; + } + case BCM43xx_PHYTYPE_G: + if (!phy->connected || + !(bcm->sprom.boardflags & BCM43xx_BFL_RSSI)) { + tmp16 = bcm43xx_nrssi_hw_read(bcm, 0x20); + if (tmp16 >= 0x20) + tmp16 -= 0x40; + if (tmp16 < 3) { + bcm43xx_phy_write(bcm, 0x048A, + (bcm43xx_phy_read(bcm, 0x048A) + & 0xF000) | 0x09EB); + } else { + bcm43xx_phy_write(bcm, 0x048A, + (bcm43xx_phy_read(bcm, 0x048A) + & 0xF000) | 0x0AED); + } + } else { + tmp = radio->interfmode; + if (tmp == BCM43xx_RADIO_INTERFMODE_NONWLAN) { + a = -13; + b = -17; + } else if (tmp == BCM43xx_RADIO_INTERFMODE_NONE && + !radio->aci_enable) { + a = -13; + b = -10; + } else { + a = -8; + b = -9; + } + a += 0x1B; + a *= radio->nrssi[1] - radio->nrssi[0]; + a += radio->nrssi[0] * 0x40; + a /= 64; + b += 0x1B; + b *= radio->nrssi[1] - radio->nrssi[0]; + b += radio->nrssi[0] * 0x40; + b /= 64; + + a = limit_value(a, -31, 31); + b = limit_value(b, -31, 31); + + tmp_u16 = bcm43xx_phy_read(bcm, 0x048A) & 0xF000; + tmp_u16 |= ((u32)a & 0x003F); + tmp_u16 |= (((u32)b & 0x003F) << 6); + bcm43xx_phy_write(bcm, 0x048A, tmp_u16); + } + break; + default: + assert(0); + } +} + +/* Helper macros to save on and restore values from the radio->interfstack */ +#ifdef stack_save +# undef stack_save +#endif +#ifdef stack_restore +# undef stack_restore +#endif +#define stack_save(value) \ + do { \ + assert(i < ARRAY_SIZE(radio->interfstack)); \ + stack[i++] = (value); \ + } while (0) + +#define stack_restore() \ + ({ \ + assert(i < ARRAY_SIZE(radio->interfstack)); \ + stack[i++]; \ + }) + +static void +bcm43xx_radio_interference_mitigation_enable(struct bcm43xx_private *bcm, + int mode) +{ + struct bcm43xx_phyinfo *phy = bcm->current_core->phy; + struct bcm43xx_radioinfo *radio = bcm->current_core->radio; + int i = 0; + u16 *stack = radio->interfstack; + u16 tmp, flipped; + + switch (mode) { + case BCM43xx_RADIO_INTERFMODE_NONWLAN: + if (phy->rev != 1) { + bcm43xx_phy_write(bcm, 0x042B, + bcm43xx_phy_read(bcm, 0x042B) & 0x0800); + bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS, + bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS) & ~0x4000); + break; + } + tmp = (bcm43xx_radio_read16(bcm, 0x0078) & 0x001E); + flipped = flip_4bit(tmp); + if ((flipped >> 1) >= 4) + tmp = flipped - 3; + tmp = flip_4bit(tmp); + bcm43xx_radio_write16(bcm, 0x0078, tmp << 1); + + bcm43xx_calc_nrssi_threshold(bcm); + + if (bcm->current_core->rev < 5) { + stack_save(bcm43xx_phy_read(bcm, 0x0406)); + bcm43xx_phy_write(bcm, 0x0406, 0x7E28); + } else { + stack_save(bcm43xx_phy_read(bcm, 0x04C0)); + stack_save(bcm43xx_phy_read(bcm, 0x04C1)); + bcm43xx_phy_write(bcm, 0x04C0, 0x3E04); + bcm43xx_phy_write(bcm, 0x04C1, 0x0640); + } + + bcm43xx_phy_write(bcm, 0x042B, + bcm43xx_phy_read(bcm, 0x042B) | 0x0800); + bcm43xx_phy_write(bcm, BCM43xx_PHY_RADIO_BITFIELD, + bcm43xx_phy_read(bcm, BCM43xx_PHY_RADIO_BITFIELD) | 0x1000); + + stack_save(bcm43xx_phy_read(bcm, 0x04A0)); + bcm43xx_phy_write(bcm, 0x04A0, + (bcm43xx_phy_read(bcm, 0x04A0) & 0xC0C0) | 0x0008); + stack_save(bcm43xx_phy_read(bcm, 0x04A1)); + bcm43xx_phy_write(bcm, 0x04A1, + (bcm43xx_phy_read(bcm, 0x04A1) & 0xC0C0) | 0x0605); + stack_save(bcm43xx_phy_read(bcm, 0x04A2)); + bcm43xx_phy_write(bcm, 0x04A2, + (bcm43xx_phy_read(bcm, 0x04A2) & 0xC0C0) | 0x0204); + stack_save(bcm43xx_phy_read(bcm, 0x04A8)); + bcm43xx_phy_write(bcm, 0x04A8, + (bcm43xx_phy_read(bcm, 0x04A8) & 0xC0C0) | 0x0403); + stack_save(bcm43xx_phy_read(bcm, 0x04AB)); + bcm43xx_phy_write(bcm, 0x04AB, + (bcm43xx_phy_read(bcm, 0x04AB) & 0xC0C0) | 0x0504); + + stack_save(bcm43xx_phy_read(bcm, 0x04A7)); + bcm43xx_phy_write(bcm, 0x04A7, 0x0002); + stack_save(bcm43xx_phy_read(bcm, 0x04A3)); + bcm43xx_phy_write(bcm, 0x04A3, 0x287A); + stack_save(bcm43xx_phy_read(bcm, 0x04A9)); + bcm43xx_phy_write(bcm, 0x04A9, 0x2027); + stack_save(bcm43xx_phy_read(bcm, 0x0493)); + bcm43xx_phy_write(bcm, 0x0493, 0x32F5); + stack_save(bcm43xx_phy_read(bcm, 0x04AA)); + bcm43xx_phy_write(bcm, 0x04AA, 0x2027); + stack_save(bcm43xx_phy_read(bcm, 0x04AC)); + bcm43xx_phy_write(bcm, 0x04AC, 0x32F5); + break; + case BCM43xx_RADIO_INTERFMODE_MANUALWLAN: + if (bcm43xx_phy_read(bcm, 0x0033) == 0x0800) + break; + + radio->aci_enable = 1; + + stack_save(bcm43xx_phy_read(bcm, BCM43xx_PHY_RADIO_BITFIELD)); + stack_save(bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS)); + if (bcm->current_core->rev < 5) { + stack_save(bcm43xx_phy_read(bcm, 0x0406)); + } else { + stack_save(bcm43xx_phy_read(bcm, 0x04C0)); + stack_save(bcm43xx_phy_read(bcm, 0x04C1)); + } + stack_save(bcm43xx_phy_read(bcm, 0x0033)); + stack_save(bcm43xx_phy_read(bcm, 0x04A7)); + stack_save(bcm43xx_phy_read(bcm, 0x04A3)); + stack_save(bcm43xx_phy_read(bcm, 0x04A9)); + stack_save(bcm43xx_phy_read(bcm, 0x04AA)); + stack_save(bcm43xx_phy_read(bcm, 0x04AC)); + stack_save(bcm43xx_phy_read(bcm, 0x0493)); + stack_save(bcm43xx_phy_read(bcm, 0x04A1)); + stack_save(bcm43xx_phy_read(bcm, 0x04A0)); + stack_save(bcm43xx_phy_read(bcm, 0x04A2)); + stack_save(bcm43xx_phy_read(bcm, 0x048A)); + stack_save(bcm43xx_phy_read(bcm, 0x04A8)); + stack_save(bcm43xx_phy_read(bcm, 0x04AB)); + + bcm43xx_phy_write(bcm, BCM43xx_PHY_RADIO_BITFIELD, + bcm43xx_phy_read(bcm, BCM43xx_PHY_RADIO_BITFIELD) & 0xEFFF); + bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS, + (bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS) & 0xEFFF) | 0x0002); + + bcm43xx_phy_write(bcm, 0x04A7, 0x0800); + bcm43xx_phy_write(bcm, 0x04A3, 0x287A); + bcm43xx_phy_write(bcm, 0x04A9, 0x2027); + bcm43xx_phy_write(bcm, 0x0493, 0x32F5); + bcm43xx_phy_write(bcm, 0x04AA, 0x2027); + bcm43xx_phy_write(bcm, 0x04AC, 0x32F5); + + bcm43xx_phy_write(bcm, 0x04A0, + (bcm43xx_phy_read(bcm, 0x04A0) & 0xFFC0) | 0x001A); + if (bcm->current_core->rev < 5) { + bcm43xx_phy_write(bcm, 0x0406, 0x280D); + } else { + bcm43xx_phy_write(bcm, 0x04C0, 0x0640); + bcm43xx_phy_write(bcm, 0x04C1, 0x00A9); + } + + bcm43xx_phy_write(bcm, 0x04A1, + (bcm43xx_phy_read(bcm, 0x04A1) & 0xC0FF) | 0x1800); + bcm43xx_phy_write(bcm, 0x04A1, + (bcm43xx_phy_read(bcm, 0x04A1) & 0xFFC0) | 0x0016); + bcm43xx_phy_write(bcm, 0x04A2, + (bcm43xx_phy_read(bcm, 0x04A2) & 0xF0FF) | 0x0900); + bcm43xx_phy_write(bcm, 0x04A0, + (bcm43xx_phy_read(bcm, 0x04A0) & 0xF0FF) | 0x0700); + bcm43xx_phy_write(bcm, 0x04A2, + (bcm43xx_phy_read(bcm, 0x04A2) & 0xFFF0) | 0x000D); + bcm43xx_phy_write(bcm, 0x04A8, + (bcm43xx_phy_read(bcm, 0x04A8) & 0xCFFF) | 0x1000); + bcm43xx_phy_write(bcm, 0x04A8, + (bcm43xx_phy_read(bcm, 0x04A8) & 0xF0FF) | 0x0A00); + bcm43xx_phy_write(bcm, 0x04AB, + (bcm43xx_phy_read(bcm, 0x04AB) & 0xCFFF) | 0x1000); + bcm43xx_phy_write(bcm, 0x04AB, + (bcm43xx_phy_read(bcm, 0x04AB) & 0xF0FF) | 0x0800); + bcm43xx_phy_write(bcm, 0x04AB, + (bcm43xx_phy_read(bcm, 0x04AB) & 0xFFCF) | 0x0010); + bcm43xx_phy_write(bcm, 0x04AB, + (bcm43xx_phy_read(bcm, 0x04AB) & 0xFFF0) | 0x0006); + + bcm43xx_calc_nrssi_slope(bcm); + break; + default: + assert(0); + } +} + +static void +bcm43xx_radio_interference_mitigation_disable(struct bcm43xx_private *bcm, + int mode) +{ + struct bcm43xx_phyinfo *phy = bcm->current_core->phy; + struct bcm43xx_radioinfo *radio = bcm->current_core->radio; + int i = 0; + u16 *stack = radio->interfstack; + u16 tmp, flipped; + + switch (mode) { + case BCM43xx_RADIO_INTERFMODE_NONWLAN: + if (phy->rev != 1) { + bcm43xx_phy_write(bcm, 0x042B, + bcm43xx_phy_read(bcm, 0x042B) & ~0x0800); + bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS, + bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS) & 0x4000); + break; + } + tmp = (bcm43xx_radio_read16(bcm, 0x0078) & 0x001E); + flipped = flip_4bit(tmp); + if ((flipped >> 1) >= 0x000C) + tmp = flipped + 3; + tmp = flip_4bit(tmp); + bcm43xx_radio_write16(bcm, 0x0078, tmp << 1); + + bcm43xx_calc_nrssi_threshold(bcm); + + if (bcm->current_core->rev < 5) { + bcm43xx_phy_write(bcm, 0x0406, stack_restore()); + } else { + bcm43xx_phy_write(bcm, 0x04C0, stack_restore()); + bcm43xx_phy_write(bcm, 0x04C1, stack_restore()); + } + bcm43xx_phy_write(bcm, 0x042B, + bcm43xx_phy_read(bcm, 0x042B) & ~0x0800); + + if (!bcm->bad_frames_preempt) + bcm43xx_phy_write(bcm, BCM43xx_PHY_RADIO_BITFIELD, + bcm43xx_phy_read(bcm, BCM43xx_PHY_RADIO_BITFIELD) & ~(1 << 11)); + bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS, + bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS) & 0x4000); + bcm43xx_phy_write(bcm, 0x04A0, stack_restore()); + bcm43xx_phy_write(bcm, 0x04A1, stack_restore()); + bcm43xx_phy_write(bcm, 0x04A2, stack_restore()); + bcm43xx_phy_write(bcm, 0x04A8, stack_restore()); + bcm43xx_phy_write(bcm, 0x04AB, stack_restore()); + bcm43xx_phy_write(bcm, 0x04A7, stack_restore()); + bcm43xx_phy_write(bcm, 0x04A3, stack_restore()); + bcm43xx_phy_write(bcm, 0x04A9, stack_restore()); + bcm43xx_phy_write(bcm, 0x0493, stack_restore()); + bcm43xx_phy_write(bcm, 0x04AA, stack_restore()); + bcm43xx_phy_write(bcm, 0x04AC, stack_restore()); + break; + case BCM43xx_RADIO_INTERFMODE_MANUALWLAN: + if (bcm43xx_phy_read(bcm, 0x0033) != 0x0800) + break; + + radio->aci_enable = 0; + + bcm43xx_phy_write(bcm, BCM43xx_PHY_RADIO_BITFIELD, stack_restore()); + bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS, stack_restore()); + if (bcm->current_core->rev < 5) { + bcm43xx_phy_write(bcm, 0x0406, stack_restore()); + } else { + bcm43xx_phy_write(bcm, 0x04C0, stack_restore()); + bcm43xx_phy_write(bcm, 0x04C1, stack_restore()); + } + bcm43xx_phy_write(bcm, 0x0033, stack_restore()); + bcm43xx_phy_write(bcm, 0x04A7, stack_restore()); + bcm43xx_phy_write(bcm, 0x04A3, stack_restore()); + bcm43xx_phy_write(bcm, 0x04A9, stack_restore()); + bcm43xx_phy_write(bcm, 0x04AA, stack_restore()); + bcm43xx_phy_write(bcm, 0x04AC, stack_restore()); + bcm43xx_phy_write(bcm, 0x0493, stack_restore()); + bcm43xx_phy_write(bcm, 0x04A1, stack_restore()); + bcm43xx_phy_write(bcm, 0x04A0, stack_restore()); + bcm43xx_phy_write(bcm, 0x04A2, stack_restore()); + bcm43xx_phy_write(bcm, 0x04A8, stack_restore()); + bcm43xx_phy_write(bcm, 0x04AB, stack_restore()); + + bcm43xx_calc_nrssi_slope(bcm); + break; + default: + assert(0); + } +} + +#undef stack_save +#undef stack_restore + +int bcm43xx_radio_set_interference_mitigation(struct bcm43xx_private *bcm, + int mode) +{ + struct bcm43xx_phyinfo *phy = bcm->current_core->phy; + struct bcm43xx_radioinfo *radio = bcm->current_core->radio; + int currentmode; + + if ((phy->type != BCM43xx_PHYTYPE_G) || + (phy->rev == 0) || + (!phy->connected)) + return -ENODEV; + + radio->aci_wlan_automatic = 0; + switch (mode) { + case BCM43xx_RADIO_INTERFMODE_AUTOWLAN: + radio->aci_wlan_automatic = 1; + if (radio->aci_enable) + mode = BCM43xx_RADIO_INTERFMODE_MANUALWLAN; + else + mode = BCM43xx_RADIO_INTERFMODE_NONE; + break; + case BCM43xx_RADIO_INTERFMODE_NONE: + case BCM43xx_RADIO_INTERFMODE_NONWLAN: + case BCM43xx_RADIO_INTERFMODE_MANUALWLAN: + break; + default: + return -EINVAL; + } + + currentmode = radio->interfmode; + if (currentmode == mode) + return 0; + if (currentmode != BCM43xx_RADIO_INTERFMODE_NONE) + bcm43xx_radio_interference_mitigation_disable(bcm, currentmode); + + if (mode == BCM43xx_RADIO_INTERFMODE_NONE) { + radio->aci_enable = 0; + radio->aci_hw_rssi = 0; + } else + bcm43xx_radio_interference_mitigation_enable(bcm, mode); + radio->interfmode = mode; + + return 0; +} + +static u16 bcm43xx_radio_calibrationvalue(struct bcm43xx_private *bcm) +{ + u16 reg, index, ret; + + reg = bcm43xx_radio_read16(bcm, 0x0060); + index = (reg & 0x001E) >> 1; + ret = rcc_table[index] << 1; + ret |= (reg & 0x0001); + ret |= 0x0020; + + return ret; +} + +u16 bcm43xx_radio_init2050(struct bcm43xx_private *bcm) +{ + struct bcm43xx_phyinfo *phy = bcm->current_core->phy; + struct bcm43xx_radioinfo *radio = bcm->current_core->radio; + u16 backup[19] = { 0 }; + u16 ret; + u16 i, j; + u32 tmp1 = 0, tmp2 = 0; + + backup[0] = bcm43xx_radio_read16(bcm, 0x0043); + backup[14] = bcm43xx_radio_read16(bcm, 0x0051); + backup[15] = bcm43xx_radio_read16(bcm, 0x0052); + backup[1] = bcm43xx_phy_read(bcm, 0x0015); + backup[16] = bcm43xx_phy_read(bcm, 0x005A); + backup[17] = bcm43xx_phy_read(bcm, 0x0059); + backup[18] = bcm43xx_phy_read(bcm, 0x0058); + if (phy->type == BCM43xx_PHYTYPE_B) { + backup[2] = bcm43xx_phy_read(bcm, 0x0030); + backup[3] = bcm43xx_read16(bcm, 0x03EC); + bcm43xx_phy_write(bcm, 0x0030, 0x00FF); + bcm43xx_write16(bcm, 0x03EC, 0x3F3F); + } else { + if (phy->connected) { + backup[4] = bcm43xx_phy_read(bcm, 0x0811); + backup[5] = bcm43xx_phy_read(bcm, 0x0812); + backup[6] = bcm43xx_phy_read(bcm, 0x0814); + backup[7] = bcm43xx_phy_read(bcm, 0x0815); + backup[8] = bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS); + backup[9] = bcm43xx_phy_read(bcm, 0x0802); + bcm43xx_phy_write(bcm, 0x0814, + (bcm43xx_phy_read(bcm, 0x0814) | 0x0003)); + bcm43xx_phy_write(bcm, 0x0815, + (bcm43xx_phy_read(bcm, 0x0815) & 0xFFFC)); + bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS, + (bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS) & 0x7FFF)); + bcm43xx_phy_write(bcm, 0x0802, + (bcm43xx_phy_read(bcm, 0x0802) & 0xFFFC)); + bcm43xx_phy_write(bcm, 0x0811, 0x01B3); + bcm43xx_phy_write(bcm, 0x0812, 0x0FB2); + } + bcm43xx_write16(bcm, BCM43xx_MMIO_PHY_RADIO, + (bcm43xx_read16(bcm, BCM43xx_MMIO_PHY_RADIO) | 0x8000)); + } + backup[10] = bcm43xx_phy_read(bcm, 0x0035); + bcm43xx_phy_write(bcm, 0x0035, + (bcm43xx_phy_read(bcm, 0x0035) & 0xFF7F)); + backup[11] = bcm43xx_read16(bcm, 0x03E6); + backup[12] = bcm43xx_read16(bcm, BCM43xx_MMIO_CHANNEL_EXT); + + // Initialization + if (phy->version == 0) { + bcm43xx_write16(bcm, 0x03E6, 0x0122); + } else { + if (phy->version >= 2) + bcm43xx_write16(bcm, 0x03E6, 0x0040); + bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL_EXT, + (bcm43xx_read16(bcm, BCM43xx_MMIO_CHANNEL_EXT) | 0x2000)); + } + + ret = bcm43xx_radio_calibrationvalue(bcm); + + if (phy->type == BCM43xx_PHYTYPE_B) + bcm43xx_radio_write16(bcm, 0x0078, 0x0003); + + bcm43xx_phy_write(bcm, 0x0015, 0xBFAF); + bcm43xx_phy_write(bcm, 0x002B, 0x1403); + if (phy->connected) + bcm43xx_phy_write(bcm, 0x0812, 0x00B2); + bcm43xx_phy_write(bcm, 0x0015, 0xBFA0); + bcm43xx_radio_write16(bcm, 0x0051, + (bcm43xx_radio_read16(bcm, 0x0051) | 0x0004)); + bcm43xx_radio_write16(bcm, 0x0052, 0x0000); + bcm43xx_radio_write16(bcm, 0x0043, + bcm43xx_radio_read16(bcm, 0x0043) | 0x0009); + bcm43xx_phy_write(bcm, 0x0058, 0x0000); + + for (i = 0; i < 16; i++) { + bcm43xx_phy_write(bcm, 0x005A, 0x0480); + bcm43xx_phy_write(bcm, 0x0059, 0xC810); + bcm43xx_phy_write(bcm, 0x0058, 0x000D); + if (phy->connected) + bcm43xx_phy_write(bcm, 0x0812, 0x30B2); + bcm43xx_phy_write(bcm, 0x0015, 0xAFB0); + udelay(10); + if (phy->connected) + bcm43xx_phy_write(bcm, 0x0812, 0x30B2); + bcm43xx_phy_write(bcm, 0x0015, 0xEFB0); + udelay(10); + if (phy->connected) + bcm43xx_phy_write(bcm, 0x0812, 0x30B2); + bcm43xx_phy_write(bcm, 0x0015, 0xFFF0); + udelay(10); + tmp1 += bcm43xx_phy_read(bcm, 0x002D); + bcm43xx_phy_write(bcm, 0x0058, 0x0000); + if (phy->connected) + bcm43xx_phy_write(bcm, 0x0812, 0x30B2); + bcm43xx_phy_write(bcm, 0x0015, 0xAFB0); + } + + tmp1++; + tmp1 >>= 9; + udelay(10); + bcm43xx_phy_write(bcm, 0x0058, 0x0000); + + for (i = 0; i < 16; i++) { + bcm43xx_radio_write16(bcm, 0x0078, (flip_4bit(i) << 1) | 0x0020); + backup[13] = bcm43xx_radio_read16(bcm, 0x0078); + udelay(10); + for (j = 0; j < 16; j++) { + bcm43xx_phy_write(bcm, 0x005A, 0x0D80); + bcm43xx_phy_write(bcm, 0x0059, 0xC810); + bcm43xx_phy_write(bcm, 0x0058, 0x000D); + if (phy->connected) + bcm43xx_phy_write(bcm, 0x0812, 0x30B2); + bcm43xx_phy_write(bcm, 0x0015, 0xAFB0); + udelay(10); + if (phy->connected) + bcm43xx_phy_write(bcm, 0x0812, 0x30B2); + bcm43xx_phy_write(bcm, 0x0015, 0xEFB0); + udelay(10); + if (phy->connected) + bcm43xx_phy_write(bcm, 0x0812, 0x30B3); /* 0x30B3 is not a typo */ + bcm43xx_phy_write(bcm, 0x0015, 0xFFF0); + udelay(10); + tmp2 += bcm43xx_phy_read(bcm, 0x002D); + bcm43xx_phy_write(bcm, 0x0058, 0x0000); + if (phy->connected) + bcm43xx_phy_write(bcm, 0x0812, 0x30B2); + bcm43xx_phy_write(bcm, 0x0015, 0xAFB0); + } + tmp2++; + tmp2 >>= 8; + if (tmp1 < tmp2) + break; + } + + /* Restore the registers */ + bcm43xx_phy_write(bcm, 0x0015, backup[1]); + bcm43xx_radio_write16(bcm, 0x0051, backup[14]); + bcm43xx_radio_write16(bcm, 0x0052, backup[15]); + bcm43xx_radio_write16(bcm, 0x0043, backup[0]); + bcm43xx_phy_write(bcm, 0x005A, backup[16]); + bcm43xx_phy_write(bcm, 0x0059, backup[17]); + bcm43xx_phy_write(bcm, 0x0058, backup[18]); + bcm43xx_write16(bcm, 0x03E6, backup[11]); + if (phy->version != 0) + bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL_EXT, backup[12]); + bcm43xx_phy_write(bcm, 0x0035, backup[10]); + bcm43xx_radio_selectchannel(bcm, radio->channel, 1); + if (phy->type == BCM43xx_PHYTYPE_B) { + bcm43xx_phy_write(bcm, 0x0030, backup[2]); + bcm43xx_write16(bcm, 0x03EC, backup[3]); + } else { + bcm43xx_write16(bcm, BCM43xx_MMIO_PHY_RADIO, + (bcm43xx_read16(bcm, BCM43xx_MMIO_PHY_RADIO) & 0x7FFF)); + if (phy->connected) { + bcm43xx_phy_write(bcm, 0x0811, backup[4]); + bcm43xx_phy_write(bcm, 0x0812, backup[5]); + bcm43xx_phy_write(bcm, 0x0814, backup[6]); + bcm43xx_phy_write(bcm, 0x0815, backup[7]); + bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS, backup[8]); + bcm43xx_phy_write(bcm, 0x0802, backup[9]); + } + } + if (i >= 15) + ret = backup[13]; + + return ret; +} + +void bcm43xx_radio_init2060(struct bcm43xx_private *bcm) +{ + int err; + + bcm43xx_radio_write16(bcm, 0x0004, 0x00C0); + bcm43xx_radio_write16(bcm, 0x0005, 0x0008); + bcm43xx_radio_write16(bcm, 0x0009, 0x0040); + bcm43xx_radio_write16(bcm, 0x0005, 0x00AA); + bcm43xx_radio_write16(bcm, 0x0032, 0x008F); + bcm43xx_radio_write16(bcm, 0x0006, 0x008F); + bcm43xx_radio_write16(bcm, 0x0034, 0x008F); + bcm43xx_radio_write16(bcm, 0x002C, 0x0007); + bcm43xx_radio_write16(bcm, 0x0082, 0x0080); + bcm43xx_radio_write16(bcm, 0x0080, 0x0000); + bcm43xx_radio_write16(bcm, 0x003F, 0x00DA); + bcm43xx_radio_write16(bcm, 0x0005, bcm43xx_radio_read16(bcm, 0x0005) & ~0x0008); + bcm43xx_radio_write16(bcm, 0x0081, bcm43xx_radio_read16(bcm, 0x0081) & ~0x0010); + bcm43xx_radio_write16(bcm, 0x0081, bcm43xx_radio_read16(bcm, 0x0081) & ~0x0020); + bcm43xx_radio_write16(bcm, 0x0081, bcm43xx_radio_read16(bcm, 0x0081) & ~0x0020); + udelay(400); + + bcm43xx_radio_write16(bcm, 0x0081, (bcm43xx_radio_read16(bcm, 0x0081) & ~0x0020) | 0x0010); + udelay(400); + + bcm43xx_radio_write16(bcm, 0x0005, (bcm43xx_radio_read16(bcm, 0x0005) & ~0x0008) | 0x0008); + bcm43xx_radio_write16(bcm, 0x0085, bcm43xx_radio_read16(bcm, 0x0085) & ~0x0010); + bcm43xx_radio_write16(bcm, 0x0005, bcm43xx_radio_read16(bcm, 0x0005) & ~0x0008); + bcm43xx_radio_write16(bcm, 0x0081, bcm43xx_radio_read16(bcm, 0x0081) & ~0x0040); + bcm43xx_radio_write16(bcm, 0x0081, (bcm43xx_radio_read16(bcm, 0x0081) & ~0x0040) | 0x0040); + bcm43xx_radio_write16(bcm, 0x0005, (bcm43xx_radio_read16(bcm, 0x0081) & ~0x0008) | 0x0008); + bcm43xx_phy_write(bcm, 0x0063, 0xDDC6); + bcm43xx_phy_write(bcm, 0x0069, 0x07BE); + bcm43xx_phy_write(bcm, 0x006A, 0x0000); + + err = bcm43xx_radio_selectchannel(bcm, BCM43xx_RADIO_DEFAULT_CHANNEL_A, 0); + assert(err == 0); + udelay(1000); +} + +static inline +u16 freq_r3A_value(u16 frequency) +{ + u16 value; + + if (frequency < 5091) + value = 0x0040; + else if (frequency < 5321) + value = 0x0000; + else if (frequency < 5806) + value = 0x0080; + else + value = 0x0040; + + return value; +} + +void bcm43xx_radio_set_tx_iq(struct bcm43xx_private *bcm) +{ + static const u8 data_high[5] = { 0x00, 0x40, 0x80, 0x90, 0xD0 }; + static const u8 data_low[5] = { 0x00, 0x01, 0x05, 0x06, 0x0A }; + u16 tmp = bcm43xx_radio_read16(bcm, 0x001E); + int i, j; + + for (i = 0; i < 5; i++) { + for (j = 0; j < 5; j++) { + if (tmp == (data_high[i] << 4 | data_low[j])) { + bcm43xx_phy_write(bcm, 0x0069, (i - j) << 8 | 0x00C0); + return; + } + } + } +} + +int bcm43xx_radio_selectchannel(struct bcm43xx_private *bcm, + u8 channel, + int synthetic_pu_workaround) +{ + struct bcm43xx_radioinfo *radio = bcm->current_core->radio; + u16 r8, tmp; + u16 freq; + + if ((radio->manufact == 0x17F) && + (radio->version == 0x2060) && + (radio->revision == 1)) { + if (channel > 200) + return -EINVAL; + freq = channel2freq_a(channel); + + r8 = bcm43xx_radio_read16(bcm, 0x0008); + bcm43xx_write16(bcm, 0x03F0, freq); + bcm43xx_radio_write16(bcm, 0x0008, r8); + + TODO();//TODO: write max channel TX power? to Radio 0x2D + tmp = bcm43xx_radio_read16(bcm, 0x002E); + tmp &= 0x0080; + TODO();//TODO: OR tmp with the Power out estimation for this channel? + bcm43xx_radio_write16(bcm, 0x002E, tmp); + + if (freq >= 4920 && freq <= 5500) { + /* + * r8 = (((freq * 15 * 0xE1FC780F) >> 32) / 29) & 0x0F; + * = (freq * 0.025862069 + */ + r8 = 3 * freq / 116; /* is equal to r8 = freq * 0.025862 */ + } + bcm43xx_radio_write16(bcm, 0x0007, (r8 << 4) | r8); + bcm43xx_radio_write16(bcm, 0x0020, (r8 << 4) | r8); + bcm43xx_radio_write16(bcm, 0x0021, (r8 << 4) | r8); + bcm43xx_radio_write16(bcm, 0x0022, + (bcm43xx_radio_read16(bcm, 0x0022) + & 0x000F) | (r8 << 4)); + bcm43xx_radio_write16(bcm, 0x002A, (r8 << 4)); + bcm43xx_radio_write16(bcm, 0x002B, (r8 << 4)); + bcm43xx_radio_write16(bcm, 0x0008, + (bcm43xx_radio_read16(bcm, 0x0008) + & 0x00F0) | (r8 << 4)); + bcm43xx_radio_write16(bcm, 0x0029, + (bcm43xx_radio_read16(bcm, 0x0029) + & 0xFF0F) | 0x00B0); + bcm43xx_radio_write16(bcm, 0x0035, 0x00AA); + bcm43xx_radio_write16(bcm, 0x0036, 0x0085); + bcm43xx_radio_write16(bcm, 0x003A, + (bcm43xx_radio_read16(bcm, 0x003A) + & 0xFF20) | freq_r3A_value(freq)); + bcm43xx_radio_write16(bcm, 0x003D, + bcm43xx_radio_read16(bcm, 0x003D) & 0x00FF); + bcm43xx_radio_write16(bcm, 0x0081, + (bcm43xx_radio_read16(bcm, 0x0081) + & 0xFF7F) | 0x0080); + bcm43xx_radio_write16(bcm, 0x0035, + bcm43xx_radio_read16(bcm, 0x0035) & 0xFFEF); + bcm43xx_radio_write16(bcm, 0x0035, + (bcm43xx_radio_read16(bcm, 0x0035) + & 0xFFEF) | 0x0010); + bcm43xx_radio_set_tx_iq(bcm); + TODO(); //TODO: TSSI2dbm workaround + bcm43xx_phy_xmitpower(bcm);//FIXME correct? + } else { + if ((channel < 1) || (channel > 14)) + return -EINVAL; + + if (synthetic_pu_workaround) + bcm43xx_synth_pu_workaround(bcm, channel); + + bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL, + channel2freq_bg(channel)); + + if (channel == 14) { + if (bcm->sprom.locale == BCM43xx_LOCALE_JAPAN) { + bcm43xx_shm_write32(bcm, BCM43xx_SHM_SHARED, + BCM43xx_UCODEFLAGS_OFFSET, + bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED, + BCM43xx_UCODEFLAGS_OFFSET) + & ~(1 << 7)); + } else { + bcm43xx_shm_write32(bcm, BCM43xx_SHM_SHARED, + BCM43xx_UCODEFLAGS_OFFSET, + bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED, + BCM43xx_UCODEFLAGS_OFFSET) + | (1 << 7)); + } + bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL_EXT, + bcm43xx_read16(bcm, BCM43xx_MMIO_CHANNEL_EXT) + | (1 << 11)); + } else { + bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL_EXT, + bcm43xx_read16(bcm, BCM43xx_MMIO_CHANNEL_EXT) + & 0xF7BF); + } + } + + radio->channel = channel; + //XXX: Using the longer of 2 timeouts (8000 vs 2000 usecs). Specs states + // that 2000 usecs might suffice. + udelay(8000); + + return 0; +} + +void bcm43xx_radio_set_txantenna(struct bcm43xx_private *bcm, u32 val) +{ + u16 tmp; + + val <<= 8; + tmp = bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED, 0x0022) & 0xFCFF; + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0022, tmp | val); + tmp = bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED, 0x03A8) & 0xFCFF; + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x03A8, tmp | val); + tmp = bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED, 0x0054) & 0xFCFF; + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0054, tmp | val); +} + +/* http://bcm-specs.sipsolutions.net/TX_Gain_Base_Band */ +static u16 bcm43xx_get_txgain_base_band(u16 txpower) +{ + u16 ret; + + assert(txpower <= 63); + + if (txpower >= 54) + ret = 2; + else if (txpower >= 49) + ret = 4; + else if (txpower >= 44) + ret = 5; + else + ret = 6; + + return ret; +} + +/* http://bcm-specs.sipsolutions.net/TX_Gain_Radio_Frequency_Power_Amplifier */ +static u16 bcm43xx_get_txgain_freq_power_amp(u16 txpower) +{ + u16 ret; + + assert(txpower <= 63); + + if (txpower >= 32) + ret = 0; + else if (txpower >= 25) + ret = 1; + else if (txpower >= 20) + ret = 2; + else if (txpower >= 12) + ret = 3; + else + ret = 4; + + return ret; +} + +/* http://bcm-specs.sipsolutions.net/TX_Gain_Digital_Analog_Converter */ +static u16 bcm43xx_get_txgain_dac(u16 txpower) +{ + u16 ret; + + assert(txpower <= 63); + + if (txpower >= 54) + ret = txpower - 53; + else if (txpower >= 49) + ret = txpower - 42; + else if (txpower >= 44) + ret = txpower - 37; + else if (txpower >= 32) + ret = txpower - 32; + else if (txpower >= 25) + ret = txpower - 20; + else if (txpower >= 20) + ret = txpower - 13; + else if (txpower >= 12) + ret = txpower - 8; + else + ret = txpower; + + return ret; +} + +void bcm43xx_radio_set_txpower_a(struct bcm43xx_private *bcm, u16 txpower) +{ + u16 pamp, base, dac, ilt; + + txpower = limit_value(txpower, 0, 63); + + pamp = bcm43xx_get_txgain_freq_power_amp(txpower); + pamp <<= 5; + pamp &= 0x00E0; + bcm43xx_phy_write(bcm, 0x0019, pamp); + + base = bcm43xx_get_txgain_base_band(txpower); + base &= 0x000F; + bcm43xx_phy_write(bcm, 0x0017, base | 0x0020); + + ilt = bcm43xx_ilt_read16(bcm, 0x3001); + ilt &= 0x0007; + + dac = bcm43xx_get_txgain_dac(txpower); + dac <<= 3; + dac |= ilt; + + bcm43xx_ilt_write16(bcm, 0x3001, dac); + + bcm->current_core->radio->txpower[0] = txpower; + + TODO(); + //TODO: FuncPlaceholder (Adjust BB loft cancel) +} + +void bcm43xx_radio_set_txpower_bg(struct bcm43xx_private *bcm, + u16 baseband_attenuation, u16 radio_attenuation, + u16 txpower) +{ + struct bcm43xx_radioinfo *radio = bcm->current_core->radio; + struct bcm43xx_phyinfo *phy = bcm->current_core->phy; + + if (baseband_attenuation == 0xFFFF) + baseband_attenuation = radio->txpower[0]; + else + radio->txpower[0] = baseband_attenuation; + if (radio_attenuation == 0xFFFF) + radio_attenuation = radio->txpower[1]; + else + radio->txpower[1] = radio_attenuation; + if (txpower == 0xFFFF) + txpower = radio->txpower[2]; + else + radio->txpower[2] = txpower; + + assert(/*baseband_attenuation >= 0 &&*/ baseband_attenuation <= 11); + if (radio->revision < 6) + assert(/*radio_attenuation >= 0 &&*/ radio_attenuation <= 9); + else + assert(/* radio_attenuation >= 0 &&*/ radio_attenuation <= 31); + assert(/*txpower >= 0 &&*/ txpower <= 7); + + bcm43xx_phy_set_baseband_attenuation(bcm, baseband_attenuation); + bcm43xx_radio_write16(bcm, 0x0043, radio_attenuation); + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0064, radio_attenuation); + if (radio->version == 0x2050) { + bcm43xx_radio_write16(bcm, 0x0052, + (bcm43xx_radio_read16(bcm, 0x0052) & 0xFF8F) + | (txpower << 4)); + } + if (phy->type == BCM43xx_PHYTYPE_G) + bcm43xx_phy_lo_adjust(bcm, 0); +} + + +void bcm43xx_radio_turn_on(struct bcm43xx_private *bcm) +{ + struct bcm43xx_phyinfo *phy = bcm->current_core->phy; + struct bcm43xx_radioinfo *radio = bcm->current_core->radio; + int err; + + if (radio->enabled) + return; + + switch (phy->type) { + case BCM43xx_PHYTYPE_A: + bcm43xx_radio_write16(bcm, 0x0004, 0x00C0); + bcm43xx_radio_write16(bcm, 0x0005, 0x0008); + bcm43xx_phy_write(bcm, 0x0010, bcm43xx_phy_read(bcm, 0x0010) & 0xFFF7); + bcm43xx_phy_write(bcm, 0x0011, bcm43xx_phy_read(bcm, 0x0011) & 0xFFF7); + bcm43xx_radio_init2060(bcm); + break; + case BCM43xx_PHYTYPE_B: + case BCM43xx_PHYTYPE_G: + bcm43xx_phy_write(bcm, 0x0015, 0x8000); + bcm43xx_phy_write(bcm, 0x0015, 0xCC00); + bcm43xx_phy_write(bcm, 0x0015, (phy->connected ? 0x00C0 : 0x0000)); + err = bcm43xx_radio_selectchannel(bcm, BCM43xx_RADIO_DEFAULT_CHANNEL_BG, 1); + assert(err == 0); + break; + default: + assert(0); + } + radio->enabled = 1; + dprintk(KERN_INFO PFX "Radio turned on\n"); +} + +void bcm43xx_radio_turn_off(struct bcm43xx_private *bcm) +{ + struct bcm43xx_phyinfo *phy = bcm->current_core->phy; + struct bcm43xx_radioinfo *radio = bcm->current_core->radio; + + if (phy->type == BCM43xx_PHYTYPE_A) { + bcm43xx_radio_write16(bcm, 0x0004, 0x00FF); + bcm43xx_radio_write16(bcm, 0x0005, 0x00FB); + bcm43xx_phy_write(bcm, 0x0010, bcm43xx_phy_read(bcm, 0x0010) | 0x0008); + bcm43xx_phy_write(bcm, 0x0011, bcm43xx_phy_read(bcm, 0x0011) | 0x0008); + } + if (phy->type == BCM43xx_PHYTYPE_G && bcm->current_core->rev >= 5) { + bcm43xx_phy_write(bcm, 0x0811, bcm43xx_phy_read(bcm, 0x0811) | 0x008C); + bcm43xx_phy_write(bcm, 0x0812, bcm43xx_phy_read(bcm, 0x0812) & 0xFF73); + } else + bcm43xx_phy_write(bcm, 0x0015, 0xAA00); + radio->enabled = 0; + dprintk(KERN_INFO PFX "Radio turned off\n"); +} + +void bcm43xx_radio_clear_tssi(struct bcm43xx_private *bcm) +{ + switch (bcm->current_core->phy->type) { + case BCM43xx_PHYTYPE_A: + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0068, 0x7F7F); + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x006a, 0x7F7F); + break; + case BCM43xx_PHYTYPE_B: + case BCM43xx_PHYTYPE_G: + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0058, 0x7F7F); + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x005a, 0x7F7F); + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0070, 0x7F7F); + bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0072, 0x7F7F); + break; + } +} |