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linux/drivers/net/wireless/bcm43xx/bcm43xx_radio.c

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/*
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);
mmiowb();
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);
mmiowb();
}
u16 bcm43xx_radio_read16(struct bcm43xx_private *bcm, u16 offset)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
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);
mmiowb();
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 = bcm43xx_current_phy(bcm);
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_write(bcm, offset + i, first);
for (i = start; i < end; i++)
bcm43xx_ilt_write(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 = bcm43xx_current_phy(bcm);
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_write(bcm, offset + i, tmp);
}
for (i = start; i < end; i++)
bcm43xx_ilt_write(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 = bcm43xx_current_radio(bcm);
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 = bcm43xx_current_radio(bcm);
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 = bcm43xx_current_phy(bcm);
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
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);
mmiowb();
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)
{
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
s16 i, delta;
s32 tmp;
delta = 0x1F - radio->nrssi[0];
for (i = 0; i < 64; i++) {
tmp = (i - delta) * radio->nrssislope;
tmp /= 0x10000;
tmp += 0x3A;
tmp = limit_value(tmp, 0, 0x3F);
radio->nrssi_lt[i] = tmp;
}
}
static void bcm43xx_calc_nrssi_offset(struct bcm43xx_private *bcm)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
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->analog == 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_radio_write16(bcm, 0x007A,
bcm43xx_radio_read16(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 = bcm43xx_current_phy(bcm);
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
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->analog >= 2) {
bcm43xx_write16(bcm, 0x03E6, 0x0040);
} else if (phy->analog == 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->analog != 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:
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->analog >= 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, BCM43xx_PHY_G_CRS,
bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS) | 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 = bcm43xx_current_phy(bcm);
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
s32 threshold;
s32 a, b;
s16 tmp16;
u16 tmp_u16;
switch (phy->type) {
case BCM43xx_PHYTYPE_B: {
if (radio->version != 0x2050)
return;
if (!(bcm->sprom.boardflags & BCM43xx_BFL_RSSI))
return;
if (radio->revision >= 6) {
threshold = (radio->nrssi[1] - radio->nrssi[0]) * 32;
threshold += 20 * (radio->nrssi[0] + 1);
threshold /= 40;
} else
threshold = radio->nrssi[1] - 5;
threshold = limit_value(threshold, 0, 0x3E);
bcm43xx_phy_read(bcm, 0x0020); /* dummy read */
bcm43xx_phy_write(bcm, 0x0020, (((u16)threshold) << 8) | 0x001C);
if (radio->revision >= 6) {
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 {
if (radio->interfmode == BCM43xx_RADIO_INTERFMODE_NONWLAN) {
a = 0xE;
b = 0xA;
} else if (!radio->aci_wlan_automatic && radio->aci_enable) {
a = 0x13;
b = 0x12;
} else {
a = 0xE;
b = 0x11;
}
a = a * (radio->nrssi[1] - radio->nrssi[0]);
a += (radio->nrssi[0] << 6);
if (a < 32)
a += 31;
else
a += 32;
a = a >> 6;
a = limit_value(a, -31, 31);
b = b * (radio->nrssi[1] - radio->nrssi[0]);
b += (radio->nrssi[0] << 6);
if (b < 32)
b += 31;
else
b += 32;
b = b >> 6;
b = limit_value(b, -31, 31);
tmp_u16 = bcm43xx_phy_read(bcm, 0x048A) & 0xF000;
tmp_u16 |= ((u32)b & 0x0000003F);
tmp_u16 |= (((u32)a & 0x0000003F) << 6);
bcm43xx_phy_write(bcm, 0x048A, tmp_u16);
}
break;
default:
assert(0);
}
}
/* 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]);
assert((offset & 0xE000) == 0x0000);
assert((id & 0xF8) == 0x00);
*stackptr = offset;
*stackptr |= ((u32)id) << 13;
*stackptr |= ((u32)value) << 16;
(*stackidx)++;
assert(*stackidx < BCM43xx_INTERFSTACK_SIZE);
}
static u16 _stack_restore(u32 *stackptr,
u8 id, u16 offset)
{
size_t i;
assert((offset & 0xE000) == 0x0000);
assert((id & 0xF8) == 0x00);
for (i = 0; i < BCM43xx_INTERFSTACK_SIZE; i++, stackptr++) {
if ((*stackptr & 0x00001FFF) != offset)
continue;
if (((*stackptr & 0x00007000) >> 13) != id)
continue;
return ((*stackptr & 0xFFFF0000) >> 16);
}
assert(0);
return 0;
}
#define phy_stacksave(offset) \
do { \
_stack_save(stack, &stackidx, 0x1, (offset), \
bcm43xx_phy_read(bcm, (offset))); \
} while (0)
#define phy_stackrestore(offset) \
do { \
bcm43xx_phy_write(bcm, (offset), \
_stack_restore(stack, 0x1, \
(offset))); \
} while (0)
#define radio_stacksave(offset) \
do { \
_stack_save(stack, &stackidx, 0x2, (offset), \
bcm43xx_radio_read16(bcm, (offset))); \
} while (0)
#define radio_stackrestore(offset) \
do { \
bcm43xx_radio_write16(bcm, (offset), \
_stack_restore(stack, 0x2, \
(offset))); \
} while (0)
#define ilt_stacksave(offset) \
do { \
_stack_save(stack, &stackidx, 0x3, (offset), \
bcm43xx_ilt_read(bcm, (offset))); \
} while (0)
#define ilt_stackrestore(offset) \
do { \
bcm43xx_ilt_write(bcm, (offset), \
_stack_restore(stack, 0x3, \
(offset))); \
} while (0)
static void
bcm43xx_radio_interference_mitigation_enable(struct bcm43xx_private *bcm,
int mode)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
u16 tmp, flipped;
u32 tmp32;
size_t stackidx = 0;
u32 *stack = radio->interfstack;
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;
}
radio_stacksave(0x0078);
tmp = (bcm43xx_radio_read16(bcm, 0x0078) & 0x001E);
flipped = flip_4bit(tmp);
if (flipped < 10 && flipped >= 8)
flipped = 7;
else if (flipped >= 10)
flipped -= 3;
flipped = flip_4bit(flipped);
flipped = (flipped << 1) | 0x0020;
bcm43xx_radio_write16(bcm, 0x0078, flipped);
bcm43xx_calc_nrssi_threshold(bcm);
phy_stacksave(0x0406);
bcm43xx_phy_write(bcm, 0x0406, 0x7E28);
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);
phy_stacksave(0x04A0);
bcm43xx_phy_write(bcm, 0x04A0,
(bcm43xx_phy_read(bcm, 0x04A0) & 0xC0C0) | 0x0008);
phy_stacksave(0x04A1);
bcm43xx_phy_write(bcm, 0x04A1,
(bcm43xx_phy_read(bcm, 0x04A1) & 0xC0C0) | 0x0605);
phy_stacksave(0x04A2);
bcm43xx_phy_write(bcm, 0x04A2,
(bcm43xx_phy_read(bcm, 0x04A2) & 0xC0C0) | 0x0204);
phy_stacksave(0x04A8);
bcm43xx_phy_write(bcm, 0x04A8,
(bcm43xx_phy_read(bcm, 0x04A8) & 0xC0C0) | 0x0803);
phy_stacksave(0x04AB);
bcm43xx_phy_write(bcm, 0x04AB,
(bcm43xx_phy_read(bcm, 0x04AB) & 0xC0C0) | 0x0605);
phy_stacksave(0x04A7);
bcm43xx_phy_write(bcm, 0x04A7, 0x0002);
phy_stacksave(0x04A3);
bcm43xx_phy_write(bcm, 0x04A3, 0x287A);
phy_stacksave(0x04A9);
bcm43xx_phy_write(bcm, 0x04A9, 0x2027);
phy_stacksave(0x0493);
bcm43xx_phy_write(bcm, 0x0493, 0x32F5);
phy_stacksave(0x04AA);
bcm43xx_phy_write(bcm, 0x04AA, 0x2027);
phy_stacksave(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;
phy_stacksave(BCM43xx_PHY_RADIO_BITFIELD);
phy_stacksave(BCM43xx_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);
ilt_stacksave(0x1A00 + 0x2);
ilt_stacksave(0x1A00 + 0x3);
}
phy_stacksave(0x042B);
phy_stacksave(0x048C);
bcm43xx_phy_write(bcm, BCM43xx_PHY_RADIO_BITFIELD,
bcm43xx_phy_read(bcm, BCM43xx_PHY_RADIO_BITFIELD)
& ~0x1000);
bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS,
(bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS)
& 0xFFFC) | 0x0002);
bcm43xx_phy_write(bcm, 0x0033, 0x0800);
bcm43xx_phy_write(bcm, 0x04A3, 0x2027);
bcm43xx_phy_write(bcm, 0x04A9, 0x1CA8);
bcm43xx_phy_write(bcm, 0x0493, 0x287A);
bcm43xx_phy_write(bcm, 0x04AA, 0x1CA8);
bcm43xx_phy_write(bcm, 0x04AC, 0x287A);
bcm43xx_phy_write(bcm, 0x04A0,
(bcm43xx_phy_read(bcm, 0x04A0)
& 0xFFC0) | 0x001A);
bcm43xx_phy_write(bcm, 0x04A7, 0x000D);
if (phy->rev < 2) {
bcm43xx_phy_write(bcm, 0x0406, 0xFF0D);
} else if (phy->rev == 2) {
bcm43xx_phy_write(bcm, 0x04C0, 0xFFFF);
bcm43xx_phy_write(bcm, 0x04C1, 0x00A9);
} else {
bcm43xx_phy_write(bcm, 0x04C0, 0x00C1);
bcm43xx_phy_write(bcm, 0x04C1, 0x0059);
}
bcm43xx_phy_write(bcm, 0x04A1,
(bcm43xx_phy_read(bcm, 0x04A1)
& 0xC0FF) | 0x1800);
bcm43xx_phy_write(bcm, 0x04A1,
(bcm43xx_phy_read(bcm, 0x04A1)
& 0xFFC0) | 0x0015);
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) | 0x0005);
bcm43xx_phy_write(bcm, 0x04A8,
(bcm43xx_phy_read(bcm, 0x04A8)
& 0xFFCF) | 0x0010);
bcm43xx_phy_write(bcm, 0x04A8,
(bcm43xx_phy_read(bcm, 0x04A8)
& 0xFFF0) | 0x0006);
bcm43xx_phy_write(bcm, 0x04A2,
(bcm43xx_phy_read(bcm, 0x04A2)
& 0xF0FF) | 0x0800);
bcm43xx_phy_write(bcm, 0x04A0,
(bcm43xx_phy_read(bcm, 0x04A0)
& 0xF0FF) | 0x0500);
bcm43xx_phy_write(bcm, 0x04A2,
(bcm43xx_phy_read(bcm, 0x04A2)
& 0xFFF0) | 0x000B);
if (phy->rev >= 3) {
bcm43xx_phy_write(bcm, 0x048A,
bcm43xx_phy_read(bcm, 0x048A)
& ~0x8000);
bcm43xx_phy_write(bcm, 0x0415,
(bcm43xx_phy_read(bcm, 0x0415)
& 0x8000) | 0x36D8);
bcm43xx_phy_write(bcm, 0x0416,
(bcm43xx_phy_read(bcm, 0x0416)
& 0x8000) | 0x36D8);
bcm43xx_phy_write(bcm, 0x0417,
(bcm43xx_phy_read(bcm, 0x0417)
& 0xFE00) | 0x016D);
} else {
bcm43xx_phy_write(bcm, 0x048A,
bcm43xx_phy_read(bcm, 0x048A)
| 0x1000);
bcm43xx_phy_write(bcm, 0x048A,
(bcm43xx_phy_read(bcm, 0x048A)
& 0x9FFF) | 0x2000);
tmp32 = bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED,
BCM43xx_UCODEFLAGS_OFFSET);
if (!(tmp32 & 0x800)) {
tmp32 |= 0x800;
bcm43xx_shm_write32(bcm, BCM43xx_SHM_SHARED,
BCM43xx_UCODEFLAGS_OFFSET,
tmp32);
}
}
if (phy->rev >= 2) {
bcm43xx_phy_write(bcm, 0x042B,
bcm43xx_phy_read(bcm, 0x042B)
| 0x0800);
}
bcm43xx_phy_write(bcm, 0x048C,
(bcm43xx_phy_read(bcm, 0x048C)
& 0xF0FF) | 0x0200);
if (phy->rev == 2) {
bcm43xx_phy_write(bcm, 0x04AE,
(bcm43xx_phy_read(bcm, 0x04AE)
& 0xFF00) | 0x007F);
bcm43xx_phy_write(bcm, 0x04AD,
(bcm43xx_phy_read(bcm, 0x04AD)
& 0x00FF) | 0x1300);
} else if (phy->rev >= 6) {
bcm43xx_ilt_write(bcm, 0x1A00 + 0x3, 0x007F);
bcm43xx_ilt_write(bcm, 0x1A00 + 0x2, 0x007F);
bcm43xx_phy_write(bcm, 0x04AD,
bcm43xx_phy_read(bcm, 0x04AD)
& 0x00FF);
}
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 = bcm43xx_current_phy(bcm);
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
u32 tmp32;
u32 *stack = radio->interfstack;
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;
}
phy_stackrestore(0x0078);
bcm43xx_calc_nrssi_threshold(bcm);
phy_stackrestore(0x0406);
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);
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 BCM43xx_RADIO_INTERFMODE_MANUALWLAN:
if (!(bcm43xx_phy_read(bcm, 0x0033) & 0x0800))
break;
radio->aci_enable = 0;
phy_stackrestore(BCM43xx_PHY_RADIO_BITFIELD);
phy_stackrestore(BCM43xx_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);
ilt_stackrestore(0x1A00 + 0x2);
ilt_stackrestore(0x1A00 + 0x3);
}
phy_stackrestore(0x04A2);
phy_stackrestore(0x04A8);
phy_stackrestore(0x042B);
phy_stackrestore(0x048C);
tmp32 = bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED,
BCM43xx_UCODEFLAGS_OFFSET);
if (tmp32 & 0x800) {
tmp32 &= ~0x800;
bcm43xx_shm_write32(bcm, BCM43xx_SHM_SHARED,
BCM43xx_UCODEFLAGS_OFFSET,
tmp32);
}
bcm43xx_calc_nrssi_slope(bcm);
break;
default:
assert(0);
}
}
#undef phy_stacksave
#undef phy_stackrestore
#undef radio_stacksave
#undef radio_stackrestore
#undef ilt_stacksave
#undef ilt_stackrestore
int bcm43xx_radio_set_interference_mitigation(struct bcm43xx_private *bcm,
int mode)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
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;
}
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;
}
#define LPD(L, P, D) (((L) << 2) | ((P) << 1) | ((D) << 0))
static u16 bcm43xx_get_812_value(struct bcm43xx_private *bcm, u8 lpd)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
u16 loop_or = 0;
u16 adj_loopback_gain = phy->loopback_gain[0];
u8 loop;
u16 extern_lna_control;
if (!phy->connected)
return 0;
if (!has_loopback_gain(phy)) {
if (phy->rev < 7 || !(bcm->sprom.boardflags
& BCM43xx_BFL_EXTLNA)) {
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;
default:
assert(0);
}
} else {
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;
default:
assert(0);
}
}
} else {
if (radio->revision == 8)
adj_loopback_gain += 0x003E;
else
adj_loopback_gain += 0x0026;
if (adj_loopback_gain >= 0x46) {
adj_loopback_gain -= 0x46;
extern_lna_control = 0x3000;
} else if (adj_loopback_gain >= 0x3A) {
adj_loopback_gain -= 0x3A;
extern_lna_control = 0x2000;
} else if (adj_loopback_gain >= 0x2E) {
adj_loopback_gain -= 0x2E;
extern_lna_control = 0x1000;
} else {
adj_loopback_gain -= 0x10;
extern_lna_control = 0x0000;
}
for (loop = 0; loop < 16; loop++) {
u16 tmp = adj_loopback_gain - 6 * loop;
if (tmp < 6)
break;
}
loop_or = (loop << 8) | extern_lna_control;
if (phy->rev >= 7 && bcm->sprom.boardflags
& BCM43xx_BFL_EXTLNA) {
if (extern_lna_control)
loop_or |= 0x8000;
switch (lpd) {
case LPD(0, 1, 1):
return 0x8F92;
case LPD(0, 0, 1):
return (0x8092 | loop_or);
case LPD(1, 0, 1):
return (0x2092 | loop_or);
case LPD(1, 0, 0):
return (0x2093 | loop_or);
default:
assert(0);
}
} else {
switch (lpd) {
case LPD(0, 1, 1):
return 0x0F92;
case LPD(0, 0, 1):
case LPD(1, 0, 1):
return (0x0092 | loop_or);
case LPD(1, 0, 0):
return (0x0093 | loop_or);
default:
assert(0);
}
}
}
return 0;
}
u16 bcm43xx_radio_init2050(struct bcm43xx_private *bcm)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
u16 backup[21] = { 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));
if (phy->rev > 1) { /* loopback gain enabled */
backup[19] = bcm43xx_phy_read(bcm, 0x080F);
backup[20] = bcm43xx_phy_read(bcm, 0x0810);
if (phy->rev >= 3)
bcm43xx_phy_write(bcm, 0x080F, 0xC020);
else
bcm43xx_phy_write(bcm, 0x080F, 0x8020);
bcm43xx_phy_write(bcm, 0x0810, 0x0000);
}
bcm43xx_phy_write(bcm, 0x0812,
bcm43xx_get_812_value(bcm, LPD(0, 1, 1)));
if (phy->rev < 7 || !(bcm->sprom.boardflags
& BCM43xx_BFL_EXTLNA))
bcm43xx_phy_write(bcm, 0x0811, 0x01B3);
else
bcm43xx_phy_write(bcm, 0x0811, 0x09B3);
}
}
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->analog == 0) {
bcm43xx_write16(bcm, 0x03E6, 0x0122);
} else {
if (phy->analog >= 2)
bcm43xx_phy_write(bcm, 0x0003,
(bcm43xx_phy_read(bcm, 0x0003)
& 0xFFBF) | 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, 0x0026);
if (phy->connected)
bcm43xx_phy_write(bcm, 0x0812,
bcm43xx_get_812_value(bcm, LPD(0, 1, 1)));
bcm43xx_phy_write(bcm, 0x0015, 0xBFAF);
bcm43xx_phy_write(bcm, 0x002B, 0x1403);
if (phy->connected)
bcm43xx_phy_write(bcm, 0x0812,
bcm43xx_get_812_value(bcm, LPD(0, 0, 1)));
bcm43xx_phy_write(bcm, 0x0015, 0xBFA0);
bcm43xx_radio_write16(bcm, 0x0051,
(bcm43xx_radio_read16(bcm, 0x0051) | 0x0004));
if (radio->revision == 8)
bcm43xx_radio_write16(bcm, 0x0043, 0x001F);
else {
bcm43xx_radio_write16(bcm, 0x0052, 0x0000);
bcm43xx_radio_write16(bcm, 0x0043,
(bcm43xx_radio_read16(bcm, 0x0043) & 0xFFF0)
| 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,
bcm43xx_get_812_value(bcm, LPD(1, 0, 1)));
bcm43xx_phy_write(bcm, 0x0015, 0xAFB0);
udelay(10);
if (phy->connected)
bcm43xx_phy_write(bcm, 0x0812,
bcm43xx_get_812_value(bcm, LPD(1, 0, 1)));
bcm43xx_phy_write(bcm, 0x0015, 0xEFB0);
udelay(10);
if (phy->connected)
bcm43xx_phy_write(bcm, 0x0812,
bcm43xx_get_812_value(bcm, LPD(1, 0, 0)));
bcm43xx_phy_write(bcm, 0x0015, 0xFFF0);
udelay(20);
tmp1 += bcm43xx_phy_read(bcm, 0x002D);
bcm43xx_phy_write(bcm, 0x0058, 0x0000);
if (phy->connected)
bcm43xx_phy_write(bcm, 0x0812,
bcm43xx_get_812_value(bcm, LPD(1, 0, 1)));
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,
bcm43xx_get_812_value(bcm,
LPD(1, 0, 1)));
bcm43xx_phy_write(bcm, 0x0015, 0xAFB0);
udelay(10);
if (phy->connected)
bcm43xx_phy_write(bcm, 0x0812,
bcm43xx_get_812_value(bcm,
LPD(1, 0, 1)));
bcm43xx_phy_write(bcm, 0x0015, 0xEFB0);
udelay(10);
if (phy->connected)
bcm43xx_phy_write(bcm, 0x0812,
bcm43xx_get_812_value(bcm,
LPD(1, 0, 0)));
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,
bcm43xx_get_812_value(bcm,
LPD(1, 0, 1)));
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->analog != 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 {
if (phy->connected) {
bcm43xx_write16(bcm, BCM43xx_MMIO_PHY_RADIO,
(bcm43xx_read16(bcm,
BCM43xx_MMIO_PHY_RADIO) & 0x7FFF));
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 (phy->rev > 1) {
bcm43xx_phy_write(bcm, 0x080F, backup[19]);
bcm43xx_phy_write(bcm, 0x0810, backup[20]);
}
}
}
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] | 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 = bcm43xx_current_radio(bcm);
u16 r8, tmp;
u16 freq;
if (!ieee80211_is_valid_channel(bcm->ieee, channel))
return -EINVAL;
if ((radio->manufact == 0x17F) &&
(radio->version == 0x2060) &&
(radio->revision == 1)) {
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 (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)
{
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
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_read(bcm, 0x3001);
ilt &= 0x0007;
dac = bcm43xx_get_txgain_dac(txpower);
dac <<= 3;
dac |= ilt;
bcm43xx_ilt_write(bcm, 0x3001, dac);
radio->txpwr_offset = 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 = bcm43xx_current_radio(bcm);
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
if (baseband_attenuation == 0xFFFF)
baseband_attenuation = radio->baseband_atten;
if (radio_attenuation == 0xFFFF)
radio_attenuation = radio->radio_atten;
if (txpower == 0xFFFF)
txpower = radio->txctl1;
radio->baseband_atten = baseband_attenuation;
radio->radio_atten = radio_attenuation;
radio->txctl1 = 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) & ~0x0070)
| ((txpower << 4) & 0x0070));
}
//FIXME: The spec is very weird and unclear here.
if (phy->type == BCM43xx_PHYTYPE_G)
bcm43xx_phy_lo_adjust(bcm, 0);
}
u16 bcm43xx_default_baseband_attenuation(struct bcm43xx_private *bcm)
{
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
if (radio->version == 0x2050 && radio->revision < 6)
return 0;
return 2;
}
u16 bcm43xx_default_radio_attenuation(struct bcm43xx_private *bcm)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
u16 att = 0xFFFF;
if (phy->type == BCM43xx_PHYTYPE_A)
return 0x60;
switch (radio->version) {
case 0x2053:
switch (radio->revision) {
case 1:
att = 6;
break;
}
break;
case 0x2050:
switch (radio->revision) {
case 0:
att = 5;
break;
case 1:
if (phy->type == BCM43xx_PHYTYPE_G) {
if (bcm->board_vendor == PCI_VENDOR_ID_BROADCOM &&
bcm->board_type == 0x421 &&
bcm->board_revision >= 30)
att = 3;
else if (bcm->board_vendor == PCI_VENDOR_ID_BROADCOM &&
bcm->board_type == 0x416)
att = 3;
else
att = 1;
} else {
if (bcm->board_vendor == PCI_VENDOR_ID_BROADCOM &&
bcm->board_type == 0x421 &&
bcm->board_revision >= 30)
att = 7;
else
att = 6;
}
break;
case 2:
if (phy->type == BCM43xx_PHYTYPE_G) {
if (bcm->board_vendor == PCI_VENDOR_ID_BROADCOM &&
bcm->board_type == 0x421 &&
bcm->board_revision >= 30)
att = 3;
else if (bcm->board_vendor == PCI_VENDOR_ID_BROADCOM &&
bcm->board_type == 0x416)
att = 5;
else if (bcm->chip_id == 0x4320)
att = 4;
else
att = 3;
} else
att = 6;
break;
case 3:
att = 5;
break;
case 4:
case 5:
att = 1;
break;
case 6:
case 7:
att = 5;
break;
case 8:
att = 0x1A;
break;
case 9:
default:
att = 5;
}
}
if (bcm->board_vendor == PCI_VENDOR_ID_BROADCOM &&
bcm->board_type == 0x421) {
if (bcm->board_revision < 0x43)
att = 2;
else if (bcm->board_revision < 0x51)
att = 3;
}
if (att == 0xFFFF)
att = 5;
return att;
}
u16 bcm43xx_default_txctl1(struct bcm43xx_private *bcm)
{
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
if (radio->version != 0x2050)
return 0;
if (radio->revision == 1)
return 3;
if (radio->revision < 6)
return 2;
if (radio->revision == 8)
return 1;
return 0;
}
void bcm43xx_radio_turn_on(struct bcm43xx_private *bcm)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
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");
bcm43xx_leds_update(bcm, 0);
}
void bcm43xx_radio_turn_off(struct bcm43xx_private *bcm)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
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 initialized\n");
bcm43xx_leds_update(bcm, 0);
}
void bcm43xx_radio_clear_tssi(struct bcm43xx_private *bcm)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
switch (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;
}
}
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