/*
Broadcom B43legacy wireless driver
Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
Stefano Brivio <stefano.brivio@polimi.it>
Michael Buesch <m@bues.ch>
Danny van Dyk <kugelfang@gentoo.org>
Andreas Jaggi <andreas.jaggi@waterwave.ch>
Copyright (c) 2007 Larry Finger <Larry.Finger@lwfinger.net>
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 "b43legacy.h"
#include "main.h"
#include "phy.h"
#include "radio.h"
#include "ilt.h"
/* Table for b43legacy_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;
B43legacy_BUG_ON(!((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,
};
if (unlikely(channel < 1 || channel > 14)) {
printk(KERN_INFO "b43legacy: Channel %d is out of range\n",
channel);
dump_stack();
return 2412;
}
return frequencies_bg[channel - 1];
}
void b43legacy_radio_lock(struct b43legacy_wldev *dev)
{
u32 status;
status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
B43legacy_WARN_ON(status & B43legacy_MACCTL_RADIOLOCK);
status |= B43legacy_MACCTL_RADIOLOCK;
b43legacy_write32(dev, B43legacy_MMIO_MACCTL, status);
mmiowb();
udelay(10);
}
void b43legacy_radio_unlock(struct b43legacy_wldev *dev)
{
u32 status;
b43legacy_read16(dev, B43legacy_MMIO_PHY_VER); /* dummy read */
status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
B43legacy_WARN_ON(!(status & B43legacy_MACCTL_RADIOLOCK));
status &= ~B43legacy_MACCTL_RADIOLOCK;
b43legacy_write32(dev, B43legacy_MMIO_MACCTL, status);
mmiowb();
}
u16 b43legacy_radio_read16(struct b43legacy_wldev *dev, u16 offset)
{
struct b43legacy_phy *phy = &dev->phy;
switch (phy->type) {
case B43legacy_PHYTYPE_B:
if (phy->radio_ver == 0x2053) {
if (offset < 0x70)
offset += 0x80;
else if (offset < 0x80)
offset += 0x70;
} else if (phy->radio_ver == 0x2050)
offset |= 0x80;
else
B43legacy_WARN_ON(1);
break;
case B43legacy_PHYTYPE_G:
offset |= 0x80;
break;
default:
B43legacy_BUG_ON(1);
}
b43legacy_write16(dev, B43legacy_MMIO_RADIO_CONTROL, offset);
return b43legacy_read16(dev, B43legacy_MMIO_RADIO_DATA_LOW);
}
void b43legacy_radio_write16(struct b43legacy_wldev *dev, u16 offset, u16 val)
{
b43legacy_write16(dev, B43legacy_MMIO_RADIO_CONTROL, offset);
mmiowb();
b43legacy_write16(dev, B43legacy_MMIO_RADIO_DATA_LOW, val);
}
static void b43legacy_set_all_gains(struct b43legacy_wldev *dev,
s16 first, s16 second, s16 third)
{
struct b43legacy_phy *phy = &dev->phy;
u16 i;
u16 start = 0x08;
u16 end = 0x18;
u16 offset = 0x0400;
u16 tmp;
if (phy->rev <= 1) {
offset = 0x5000;
start = 0x10;
end = 0x20;
}
for (i = 0; i < 4; i++)
b43legacy_ilt_write(dev, offset + i, first);
for (i = start; i < end; i++)
b43legacy_ilt_write(dev, offset + i, second);
if (third != -1) {
tmp = ((u16)third << 14) | ((u16)third << 6);
b43legacy_phy_write(dev, 0x04A0,
(b43legacy_phy_read(dev, 0x04A0) & 0xBFBF)
| tmp);
b43legacy_phy_write(dev, 0x04A1,
(b43legacy_phy_read(dev, 0x04A1) & 0xBFBF)
| tmp);
b43legacy_phy_write(dev, 0x04A2,
(b43legacy_phy_read(dev, 0x04A2) & 0xBFBF)
| tmp);
}
b43legacy_dummy_transmission(dev);
}
static void b43legacy_set_original_gains(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
u16 i;
u16 tmp;
u16 offset = 0x0400;
u16 start = 0x0008;
u16 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;
b43legacy_ilt_write(dev, offset + i, tmp);
}
for (i = start; i < end; i++)
b43legacy_ilt_write(dev, offset + i, i - start);
b43legacy_phy_write(dev, 0x04A0,
(b43legacy_phy_read(dev, 0x04A0) & 0xBFBF)
| 0x4040);
b43legacy_phy_write(dev, 0x04A1,
(b43legacy_phy_read(dev, 0x04A1) & 0xBFBF)
| 0x4040);
b43legacy_phy_write(dev, 0x04A2,
(b43legacy_phy_read(dev, 0x04A2) & 0xBFBF)
| 0x4000);
b43legacy_dummy_transmission(dev);
}
/* Synthetic PU workaround */
static void b43legacy_synth_pu_workaround(struct b43legacy_wldev *dev,
u8 channel)
{
struct b43legacy_phy *phy = &dev->phy;
might_sleep();
if (phy->radio_ver != 0x2050 || phy->radio_rev >= 6)
/* We do not need the workaround. */
return;
if (channel <= 10)
b43legacy_write16(dev, B43legacy_MMIO_CHANNEL,
channel2freq_bg(channel + 4));
else
b43legacy_write16(dev, B43legacy_MMIO_CHANNEL,
channel2freq_bg(channel));
msleep(1);
b43legacy_write16(dev, B43legacy_MMIO_CHANNEL,
channel2freq_bg(channel));
}
u8 b43legacy_radio_aci_detect(struct b43legacy_wldev *dev, u8 channel)
{
struct b43legacy_phy *phy = &dev->phy;
u8 ret = 0;
u16 saved;
u16 rssi;
u16 temp;
int i;
int j = 0;
saved = b43legacy_phy_read(dev, 0x0403);
b43legacy_radio_selectchannel(dev, channel, 0);
b43legacy_phy_write(dev, 0x0403, (saved & 0xFFF8) | 5);
if (phy->aci_hw_rssi)
rssi = b43legacy_phy_read(dev, 0x048A) & 0x3F;
else
rssi = saved & 0x3F;
/* clamp temp to signed 5bit */
if (rssi > 32)
rssi -= 64;
for (i = 0; i < 100; i++) {
temp = (b43legacy_phy_read(dev, 0x047F) >> 8) & 0x3F;
if (temp > 32)
temp -= 64;
if (temp < rssi)
j++;
if (j >= 20)
ret = 1;
}
b43legacy_phy_write(dev, 0x0403, saved);
return ret;
}
u8 b43legacy_radio_aci_scan(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
u8 ret[13];
unsigned int channel = phy->channel;
unsigned int i;
unsigned int j;
unsigned int start;
unsigned int end;
if (!((phy->type == B43legacy_PHYTYPE_G) && (phy->rev > 0)))
return 0;
b43legacy_phy_lock(dev);
b43legacy_radio_lock(dev);
b43legacy_phy_write(dev, 0x0802,
b43legacy_phy_read(dev, 0x0802) & 0xFFFC);
b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
b43legacy_phy_read(dev, B43legacy_PHY_G_CRS)
& 0x7FFF);
b43legacy_set_all_gains(dev, 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] = b43legacy_radio_aci_detect(dev, i);
}
b43legacy_radio_selectchannel(dev, channel, 0);
b43legacy_phy_write(dev, 0x0802,
(b43legacy_phy_read(dev, 0x0802) & 0xFFFC)
| 0x0003);
b43legacy_phy_write(dev, 0x0403,
b43legacy_phy_read(dev, 0x0403) & 0xFFF8);
b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
b43legacy_phy_read(dev, B43legacy_PHY_G_CRS)
| 0x8000);
b43legacy_set_original_gains(dev);
for (i = 0; i < 13; i++) {
if (!ret[i])
continue;
end = (i + 5 < 13) ? i + 5 : 13;
for (j = i; j < end; j++)
ret[j] = 1;
}
b43legacy_radio_unlock(dev);
b43legacy_phy_unlock(dev);
return ret[channel - 1];
}
/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
void b43legacy_nrssi_hw_write(struct b43legacy_wldev *dev, u16 offset, s16 val)
{
b43legacy_phy_write(dev, B43legacy_PHY_NRSSILT_CTRL, offset);
mmiowb();
b43legacy_phy_write(dev, B43legacy_PHY_NRSSILT_DATA, (u16)val);
}
/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
s16 b43legacy_nrssi_hw_read(struct b43legacy_wldev *dev, u16 offset)
{
u16 val;
b43legacy_phy_write(dev, B43legacy_PHY_NRSSILT_CTRL, offset);
val = b43legacy_phy_read(dev, B43legacy_PHY_NRSSILT_DATA);
return (s16)val;
}
/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
void b43legacy_nrssi_hw_update(struct b43legacy_wldev *dev, u16 val)
{
u16 i;
s16 tmp;
for (i = 0; i < 64; i++) {
tmp = b43legacy_nrssi_hw_read(dev, i);
tmp -= val;
tmp = clamp_val(tmp, -32, 31);
b43legacy_nrssi_hw_write(dev, i, tmp);
}
}
/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
void b43legacy_nrssi_mem_update(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
s16 i;
s16 delta;
s32 tmp;
delta = 0x1F - phy->nrssi[0];
for (i = 0; i < 64; i++) {
tmp = (i - delta) * phy->nrssislope;
tmp /= 0x10000;
tmp += 0x3A;
tmp = clamp_val(tmp, 0, 0x3F);
phy->nrssi_lt[i] = tmp;
}
}
static void b43legacy_calc_nrssi_offset(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
u16 backup[20] = { 0 };
s16 v47F;
u16 i;
u16 saved = 0xFFFF;
backup[0] = b43legacy_phy_read(dev, 0x0001);
backup[1] = b43legacy_phy_read(dev, 0x0811);
backup[2] = b43legacy_phy_read(dev, 0x0812);
backup[3] = b43legacy_phy_read(dev, 0x0814);
backup[4] = b43legacy_phy_read(dev, 0x0815);
backup[5] = b43legacy_phy_read(dev, 0x005A);
backup[6] = b43legacy_phy_read(dev, 0x0059);
backup[7] = b43legacy_phy_read(dev, 0x0058);
backup[8] = b43legacy_phy_read(dev, 0x000A);
backup[9] = b43legacy_phy_read(dev, 0x0003);
backup[10] = b43legacy_radio_read16(dev, 0x007A);
backup[11] = b43legacy_radio_read16(dev, 0x0043);
b43legacy_phy_write(dev, 0x0429,
b43legacy_phy_read(dev, 0x0429) & 0x7FFF);
b43legacy_phy_write(dev, 0x0001,
(b43legacy_phy_read(dev, 0x0001) & 0x3FFF)
| 0x4000);
b43legacy_phy_write(dev, 0x0811,
b43legacy_phy_read(dev, 0x0811) | 0x000C);
b43legacy_phy_write(dev, 0x0812,
(b43legacy_phy_read(dev, 0x0812) & 0xFFF3)
| 0x0004);
b43legacy_phy_write(dev, 0x0802,
b43legacy_phy_read(dev, 0x0802) & ~(0x1 | 0x2));
if (phy->rev >= 6) {
backup[12] = b43legacy_phy_read(dev, 0x002E);
backup[13] = b43legacy_phy_read(dev, 0x002F);
backup[14] = b43legacy_phy_read(dev, 0x080F);
backup[15] = b43legacy_phy_read(dev, 0x0810);
backup[16] = b43legacy_phy_read(dev, 0x0801);
backup[17] = b43legacy_phy_read(dev, 0x0060);
backup[18] = b43legacy_phy_read(dev, 0x0014);
backup[19] = b43legacy_phy_read(dev, 0x0478);
b43legacy_phy_write(dev, 0x002E, 0);
b43legacy_phy_write(dev, 0x002F, 0);
b43legacy_phy_write(dev, 0x080F, 0);
b43legacy_phy_write(dev, 0x0810, 0);
b43legacy_phy_write(dev, 0x0478,
b43legacy_phy_read(dev, 0x0478) | 0x0100);
b43legacy_phy_write(dev, 0x0801,
b43legacy_phy_read(dev, 0x0801) | 0x0040);
b43legacy_phy_write(dev, 0x0060,
b43legacy_phy_read(dev, 0x0060) | 0x0040);
b43legacy_phy_write(dev, 0x0014,
b43legacy_phy_read(dev, 0x0014) | 0x0200);
}
b43legacy_radio_write16(dev, 0x007A,
b43legacy_radio_read16(dev, 0x007A) | 0x0070);
b43legacy_radio_write16(dev, 0x007A,
b43legacy_radio_read16(dev, 0x007A) | 0x0080);
udelay(30);
v47F = (s16)((b43legacy_phy_read(dev, 0x047F) >> 8) & 0x003F);
if (v47F >= 0x20)
v47F -= 0x40;
if (v47F == 31) {
for (i = 7; i >= 4; i--) {
b43legacy_radio_write16(dev, 0x007B, i);
udelay(20);
v47F = (s16)((b43legacy_phy_read(dev, 0x047F) >> 8)
& 0x003F);
if (v47F >= 0x20)
v47F -= 0x40;
if (v47F < 31 && saved == 0xFFFF)
saved = i;
}
if (saved == 0xFFFF)
saved = 4;
} else {
b43legacy_radio_write16(dev, 0x007A,
b43legacy_radio_read16(dev, 0x007A)
& 0x007F);
b43legacy_phy_write(dev, 0x0814,
b43legacy_phy_read(dev, 0x0814) | 0x0001);
b43legacy_phy_write(dev, 0x0815,
b43legacy_phy_read(dev, 0x0815) & 0xFFFE);
b43legacy_phy_write(dev, 0x0811,
b43legacy_phy_read(dev, 0x0811) | 0x000C);
b43legacy_phy_write(dev, 0x0812,
b43legacy_phy_read(dev, 0x0812) | 0x000C);
b43legacy_phy_write(dev, 0x0811,
b43legacy_phy_read(dev, 0x0811) | 0x0030);
b43legacy_phy_write(dev, 0x0812,
b43legacy_phy_read(dev, 0x0812) | 0x0030);
b43legacy_phy_write(dev, 0x005A, 0x0480);
b43legacy_phy_write(dev, 0x0059, 0x0810);
b43legacy_phy_write(dev, 0x0058, 0x000D);
if (phy->analog == 0)
b43legacy_phy_write(dev, 0x0003, 0x0122);
else
b43legacy_phy_write(dev, 0x000A,
b43legacy_phy_read(dev, 0x000A)
| 0x2000);
b43legacy_phy_write(dev, 0x0814,
b43legacy_phy_read(dev, 0x0814) | 0x0004);
b43legacy_phy_write(dev, 0x0815,
b43legacy_phy_read(dev, 0x0815) & 0xFFFB);
b43legacy_phy_write(dev, 0x0003,
(b43legacy_phy_read(dev, 0x0003) & 0xFF9F)
| 0x0040);
b43legacy_radio_write16(dev, 0x007A,
b43legacy_radio_read16(dev, 0x007A)
| 0x000F);
b43legacy_set_all_gains(dev, 3, 0, 1);
b43legacy_radio_write16(dev, 0x0043,
(b43legacy_radio_read16(dev, 0x0043)
& 0x00F0) | 0x000F);
udelay(30);
v47F = (s16)((b43legacy_phy_read(dev, 0x047F) >> 8) & 0x003F);
if (v47F >= 0x20)
v47F -= 0x40;
if (v47F == -32) {
for (i = 0; i < 4; i++) {
b43legacy_radio_write16(dev, 0x007B, i);
udelay(20);
v47F = (s16)((b43legacy_phy_read(dev, 0x047F) >>
8) & 0x003F);
if (v47F >= 0x20)
v47F -= 0x40;
if (v47F > -31 && saved == 0xFFFF)
saved = i;
}
if (saved == 0xFFFF)
saved = 3;
} else
saved = 0;
}
b43legacy_radio_write16(dev, 0x007B, saved);
if (phy->rev >= 6) {
b43legacy_phy_write(dev, 0x002E, backup[12]);
b43legacy_phy_write(dev, 0x002F, backup[13]);
b43legacy_phy_write(dev, 0x080F, backup[14]);
b43legacy_phy_write(dev, 0x0810, backup[15]);
}
b43legacy_phy_write(dev, 0x0814, backup[3]);
b43legacy_phy_write(dev, 0x0815, backup[4]);
b43legacy_phy_write(dev, 0x005A, backup[5]);
b43legacy_phy_write(dev, 0x0059, backup[6]);
b43legacy_phy_write(dev, 0x0058, backup[7]);
b43legacy_phy_write(dev, 0x000A, backup[8]);
b43legacy_phy_write(dev, 0x0003, backup[9]);
b43legacy_radio_write16(dev, 0x0043, backup[11]);
b43legacy_radio_write16(dev, 0x007A, backup[10]);
b43legacy_phy_write(dev, 0x0802,
b43legacy_phy_read(dev, 0x0802) | 0x1 | 0x2);
b43legacy_phy_write(dev, 0x0429,
b43legacy_phy_read(dev, 0x0429) | 0x8000);
b43legacy_set_original_gains(dev);
if (phy->rev >= 6) {
b43legacy_phy_write(dev, 0x0801, backup[16]);
b43legacy_phy_write(dev, 0x0060, backup[17]);
b43legacy_phy_write(dev, 0x0014, backup[18]);
b43legacy_phy_write(dev, 0x0478, backup[19]);
}
b43legacy_phy_write(dev, 0x0001, backup[0]);
b43legacy_phy_write(dev, 0x0812, backup[2]);
b43legacy_phy_write(dev, 0x0811, backup[1]);
}
void b43legacy_calc_nrssi_slope(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
u16 backup[18] = { 0 };
u16 tmp;
s16 nrssi0;
s16 nrssi1;
switch (phy->type) {
case B43legacy_PHYTYPE_B:
backup[0] = b43legacy_radio_read16(dev, 0x007A);
backup[1] = b43legacy_radio_read16(dev, 0x0052);
backup[2] = b43legacy_radio_read16(dev, 0x0043);
backup[3] = b43legacy_phy_read(dev, 0x0030);
backup[4] = b43legacy_phy_read(dev, 0x0026);
backup[5] = b43legacy_phy_read(dev, 0x0015);
backup[6] = b43legacy_phy_read(dev, 0x002A);
backup[7] = b43legacy_phy_read(dev, 0x0020);
backup[8] = b43legacy_phy_read(dev, 0x005A);
backup[9] = b43legacy_phy_read(dev, 0x0059);
backup[10] = b43legacy_phy_read(dev, 0x0058);
backup[11] = b43legacy_read16(dev, 0x03E2);
backup[12] = b43legacy_read16(dev, 0x03E6);
backup[13] = b43legacy_read16(dev, B43legacy_MMIO_CHANNEL_EXT);
tmp = b43legacy_radio_read16(dev, 0x007A);
tmp &= (phy->rev >= 5) ? 0x007F : 0x000F;
b43legacy_radio_write16(dev, 0x007A, tmp);
b43legacy_phy_write(dev, 0x0030, 0x00FF);
b43legacy_write16(dev, 0x03EC, 0x7F7F);
b43legacy_phy_write(dev, 0x0026, 0x0000);
b43legacy_phy_write(dev, 0x0015,
b43legacy_phy_read(dev, 0x0015) | 0x0020);
b43legacy_phy_write(dev, 0x002A, 0x08A3);
b43legacy_radio_write16(dev, 0x007A,
b43legacy_radio_read16(dev, 0x007A)
| 0x0080);
nrssi0 = (s16)b43legacy_phy_read(dev, 0x0027);
b43legacy_radio_write16(dev, 0x007A,
b43legacy_radio_read16(dev, 0x007A)
& 0x007F);
if (phy->analog >= 2)
b43legacy_write16(dev, 0x03E6, 0x0040);
else if (phy->analog == 0)
b43legacy_write16(dev, 0x03E6, 0x0122);
else
b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT,
b43legacy_read16(dev,
B43legacy_MMIO_CHANNEL_EXT) & 0x2000);
b43legacy_phy_write(dev, 0x0020, 0x3F3F);
b43legacy_phy_write(dev, 0x0015, 0xF330);
b43legacy_radio_write16(dev, 0x005A, 0x0060);
b43legacy_radio_write16(dev, 0x0043,
b43legacy_radio_read16(dev, 0x0043)
& 0x00F0);
b43legacy_phy_write(dev, 0x005A, 0x0480);
b43legacy_phy_write(dev, 0x0059, 0x0810);
b43legacy_phy_write(dev, 0x0058, 0x000D);
udelay(20);
nrssi1 = (s16)b43legacy_phy_read(dev, 0x0027);
b43legacy_phy_write(dev, 0x0030, backup[3]);
b43legacy_radio_write16(dev, 0x007A, backup[0]);
b43legacy_write16(dev, 0x03E2, backup[11]);
b43legacy_phy_write(dev, 0x0026, backup[4]);
b43legacy_phy_write(dev, 0x0015, backup[5]);
b43legacy_phy_write(dev, 0x002A, backup[6]);
b43legacy_synth_pu_workaround(dev, phy->channel);
if (phy->analog != 0)
b43legacy_write16(dev, 0x03F4, backup[13]);
b43legacy_phy_write(dev, 0x0020, backup[7]);
b43legacy_phy_write(dev, 0x005A, backup[8]);
b43legacy_phy_write(dev, 0x0059, backup[9]);
b43legacy_phy_write(dev, 0x0058, backup[10]);
b43legacy_radio_write16(dev, 0x0052, backup[1]);
b43legacy_radio_write16(dev, 0x0043, backup[2]);
if (nrssi0 == nrssi1)
phy->nrssislope = 0x00010000;
else
phy->nrssislope = 0x00400000 / (nrssi0 - nrssi1);
if (nrssi0 <= -4) {
phy->nrssi[0] = nrssi0;
phy->nrssi[1] = nrssi1;
}
break;
case B43legacy_PHYTYPE_G:
if (phy->radio_rev >= 9)
return;
if (phy->radio_rev == 8)
b43legacy_calc_nrssi_offset(dev);
b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
b43legacy_phy_read(dev, B43legacy_PHY_G_CRS)
& 0x7FFF);
b43legacy_phy_write(dev, 0x0802,
b43legacy_phy_read(dev, 0x0802) & 0xFFFC);
backup[7] = b43legacy_read16(dev, 0x03E2);
b43legacy_write16(dev, 0x03E2,
b43legacy_read16(dev, 0x03E2) | 0x8000);
backup[0] = b43legacy_radio_read16(dev, 0x007A);
backup[1] = b43legacy_radio_read16(dev, 0x0052);
backup[2] = b43legacy_radio_read16(dev, 0x0043);
backup[3] = b43legacy_phy_read(dev, 0x0015);
backup[4] = b43legacy_phy_read(dev, 0x005A);
backup[5] = b43legacy_phy_read(dev, 0x0059);
backup[6] = b43legacy_phy_read(dev, 0x0058);
backup[8] = b43legacy_read16(dev, 0x03E6);
backup[9] = b43legacy_read16(dev, B43legacy_MMIO_CHANNEL_EXT);
if (phy->rev >= 3) {
backup[10] = b43legacy_phy_read(dev, 0x002E);
backup[11] = b43legacy_phy_read(dev, 0x002F);
backup[12] = b43legacy_phy_read(dev, 0x080F);
backup[13] = b43legacy_phy_read(dev,
B43legacy_PHY_G_LO_CONTROL);
backup[14] = b43legacy_phy_read(dev, 0x0801);
backup[15] = b43legacy_phy_read(dev, 0x0060);
backup[16] = b43legacy_phy_read(dev, 0x0014);
backup[17] = b43legacy_phy_read(dev, 0x0478);
b43legacy_phy_write(dev, 0x002E, 0);
b43legacy_phy_write(dev, B43legacy_PHY_G_LO_CONTROL, 0);
switch (phy->rev) {
case 4: case 6: case 7:
b43legacy_phy_write(dev, 0x0478,
b43legacy_phy_read(dev,
0x0478) | 0x0100);
b43legacy_phy_write(dev, 0x0801,
b43legacy_phy_read(dev,
0x0801) | 0x0040);
break;
case 3: case 5:
b43legacy_phy_write(dev, 0x0801,
b43legacy_phy_read(dev,
0x0801) & 0xFFBF);
break;
}
b43legacy_phy_write(dev, 0x0060,
b43legacy_phy_read(dev, 0x0060)
| 0x0040);
b43legacy_phy_write(dev, 0x0014,
b43legacy_phy_read(dev, 0x0014)
| 0x0200);
}
b43legacy_radio_write16(dev, 0x007A,
b43legacy_radio_read16(dev, 0x007A)
| 0x0070);
b43legacy_set_all_gains(dev, 0, 8, 0);
b43legacy_radio_write16(dev, 0x007A,
b43legacy_radio_read16(dev, 0x007A)
& 0x00F7);
if (phy->rev >= 2) {
b43legacy_phy_write(dev, 0x0811,
(b43legacy_phy_read(dev, 0x0811)
& 0xFFCF) | 0x0030);
b43legacy_phy_write(dev, 0x0812,
(b43legacy_phy_read(dev, 0x0812)
& 0xFFCF) | 0x0010);
}
b43legacy_radio_write16(dev, 0x007A,
b43legacy_radio_read16(dev, 0x007A)
| 0x0080);
udelay(20);
nrssi0 = (s16)((b43legacy_phy_read(dev, 0x047F) >> 8) & 0x003F);
if (nrssi0 >= 0x0020)
nrssi0 -= 0x0040;
b43legacy_radio_write16(dev, 0x007A,
b43legacy_radio_read16(dev, 0x007A)
& 0x007F);
if (phy->analog >= 2)
b43legacy_phy_write(dev, 0x0003,
(b43legacy_phy_read(dev, 0x0003)
& 0xFF9F) | 0x0040);
b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT,
b43legacy_read16(dev,
B43legacy_MMIO_CHANNEL_EXT) | 0x2000);
b43legacy_radio_write16(dev, 0x007A,
b43legacy_radio_read16(dev, 0x007A)
| 0x000F);
b43legacy_phy_write(dev, 0x0015, 0xF330);
if (phy->rev >= 2) {
b43legacy_phy_write(dev, 0x0812,
(b43legacy_phy_read(dev, 0x0812)
& 0xFFCF) | 0x0020);
b43legacy_phy_write(dev, 0x0811,
(b43legacy_phy_read(dev, 0x0811)
& 0xFFCF) | 0x0020);
}
b43legacy_set_all_gains(dev, 3, 0, 1);
if (phy->radio_rev == 8)
b43legacy_radio_write16(dev, 0x0043, 0x001F);
else {
tmp = b43legacy_radio_read16(dev, 0x0052) & 0xFF0F;
b43legacy_radio_write16(dev, 0x0052, tmp | 0x0060);
tmp = b43legacy_radio_read16(dev, 0x0043) & 0xFFF0;
b43legacy_radio_write16(dev, 0x0043, tmp | 0x0009);
}
b43legacy_phy_write(dev, 0x005A, 0x0480);
b43legacy_phy_write(dev, 0x0059, 0x0810);
b43legacy_phy_write(dev, 0x0058, 0x000D);
udelay(20);
nrssi1 = (s16)((b43legacy_phy_read(dev, 0x047F) >> 8) & 0x003F);
if (nrssi1 >= 0x0020)
nrssi1 -= 0x0040;
if (nrssi0 == nrssi1)
phy->nrssislope = 0x00010000;
else
phy->nrssislope = 0x00400000 / (nrssi0 - nrssi1);
if (nrssi0 >= -4) {
phy->nrssi[0] = nrssi1;
phy->nrssi[1] = nrssi0;
}
if (phy->rev >= 3) {
b43legacy_phy_write(dev, 0x002E, backup[10]);
b43legacy_phy_write(dev, 0x002F, backup[11]);
b43legacy_phy_write(dev, 0x080F, backup[12]);
b43legacy_phy_write(dev, B43legacy_PHY_G_LO_CONTROL,
backup[13]);
}
if (phy->rev >= 2) {
b43legacy_phy_write(dev, 0x0812,
b43legacy_phy_read(dev, 0x0812)
& 0xFFCF);
b43legacy_phy_write(dev, 0x0811,
b43legacy_phy_read(dev, 0x0811)
& 0xFFCF);
}
b43legacy_radio_write16(dev, 0x007A, backup[0]);
b43legacy_radio_write16(dev, 0x0052, backup[1]);
b43legacy_radio_write16(dev, 0x0043, backup[2]);
b43legacy_write16(dev, 0x03E2, backup[7]);
b43legacy_write16(dev, 0x03E6, backup[8]);
b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT, backup[9]);
b43legacy_phy_write(dev, 0x0015, backup[3]);
b43legacy_phy_write(dev, 0x005A, backup[4]);
b43legacy_phy_write(dev, 0x0059, backup[5]);
b43legacy_phy_write(dev, 0x0058, backup[6]);
b43legacy_synth_pu_workaround(dev, phy->channel);
b43legacy_phy_write(dev, 0x0802,
b43legacy_phy_read(dev, 0x0802) | 0x0003);
b43legacy_set_original_gains(dev);
b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
b43legacy_phy_read(dev, B43legacy_PHY_G_CRS)
| 0x8000);
if (phy->rev >= 3) {
b43legacy_phy_write(dev, 0x0801, backup[14]);
b43legacy_phy_write(dev, 0x0060, backup[15]);
b43legacy_phy_write(dev, 0x0014, backup[16]);
b43legacy_phy_write(dev, 0x0478, backup[17]);
}
b43legacy_nrssi_mem_update(dev);
b43legacy_calc_nrssi_threshold(dev);
break;
default:
B43legacy_BUG_ON(1);
}
}
void b43legacy_calc_nrssi_threshold(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
s32 threshold;
s32 a;
s32 b;
s16 tmp16;
u16 tmp_u16;
switch (phy->type) {
case B43legacy_PHYTYPE_B: {
if (phy->radio_ver != 0x2050)
return;
if (!(dev->dev->bus->sprom.boardflags_lo &
B43legacy_BFL_RSSI))
return;
if (phy->radio_rev >= 6) {
threshold = (phy->nrssi[1] - phy->nrssi[0]) * 32;
threshold += 20 * (phy->nrssi[0] + 1);
threshold /= 40;
} else
threshold = phy->nrssi[1] - 5;
threshold = clamp_val(threshold, 0, 0x3E);
b43legacy_phy_read(dev, 0x0020); /* dummy read */
b43legacy_phy_write(dev, 0x0020, (((u16)threshold) << 8)
| 0x001C);
if (phy->radio_rev >= 6) {
b43legacy_phy_write(dev, 0x0087, 0x0E0D);
b43legacy_phy_write(dev, 0x0086, 0x0C0B);
b43legacy_phy_write(dev, 0x0085, 0x0A09);
b43legacy_phy_write(dev, 0x0084, 0x0808);
b43legacy_phy_write(dev, 0x0083, 0x0808);
b43legacy_phy_write(dev, 0x0082, 0x0604);
b43legacy_phy_write(dev, 0x0081, 0x0302);
b43legacy_phy_write(dev, 0x0080, 0x0100);
}
break;
}
case B43legacy_PHYTYPE_G:
if (!phy->gmode ||
!(dev->dev->bus->sprom.boardflags_lo &
B43legacy_BFL_RSSI)) {
tmp16 = b43legacy_nrssi_hw_read(dev, 0x20);
if (tmp16 >= 0x20)
tmp16 -= 0x40;
if (tmp16 < 3)
b43legacy_phy_write(dev, 0x048A,
(b43legacy_phy_read(dev,
0x048A) & 0xF000) | 0x09EB);
else
b43legacy_phy_write(dev, 0x048A,
(b43legacy_phy_read(dev,
0x048A) & 0xF000) | 0x0AED);
} else {
if (phy->interfmode ==
B43legacy_RADIO_INTERFMODE_NONWLAN) {
a = 0xE;
b = 0xA;
} else if (!phy->aci_wlan_automatic &&
phy->aci_enable) {
a = 0x13;
b = 0x12;
} else {
a = 0xE;
b = 0x11;
}
a = a * (phy->nrssi[1] - phy->nrssi[0]);
a += (phy->nrssi[0] << 6);
if (a < 32)
a += 31;
else
a += 32;
a = a >> 6;
a = clamp_val(a, -31, 31);
b = b * (phy->nrssi[1] - phy->nrssi[0]);
b += (phy->nrssi[0] << 6);
if (b < 32)
b += 31;
else
b += 32;
b = b >> 6;
b = clamp_val(b, -31, 31);
tmp_u16 = b43legacy_phy_read(dev, 0x048A) & 0xF000;
tmp_u16 |= ((u32)b & 0x0000003F);
tmp_u16 |= (((u32)a & 0x0000003F) << 6);
b43legacy_phy_write(dev, 0x048A, tmp_u16);
}
break;
default:
B43legacy_BUG_ON(1);
}
}
/* 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]);
B43legacy_WARN_ON(!((offset & 0xE000) == 0x0000));
B43legacy_WARN_ON(!((id & 0xF8) == 0x00));
*stackptr = offset;
*stackptr |= ((u32)id) << 13;
*stackptr |= ((u32)value) << 16;
(*stackidx)++;
B43legacy_WARN_ON(!(*stackidx < B43legacy_INTERFSTACK_SIZE));
}
static u16 _stack_restore(u32 *stackptr,
u8 id, u16 offset)
{
size_t i;
B43legacy_WARN_ON(!((offset & 0xE000) == 0x0000));
B43legacy_WARN_ON(!((id & 0xF8) == 0x00));
for (i = 0; i < B43legacy_INTERFSTACK_SIZE; i++, stackptr++) {
if ((*stackptr & 0x00001FFF) != offset)
continue;
if (((*stackptr & 0x00007000) >> 13) != id)
continue;
return ((*stackptr & 0xFFFF0000) >> 16);
}
B43legacy_BUG_ON(1);
return 0;
}
#define phy_stacksave(offset) \
do { \
_stack_save(stack, &stackidx, 0x1, (offset), \
b43legacy_phy_read(dev, (offset))); \
} while (0)
#define phy_stackrestore(offset) \
do { \
b43legacy_phy_write(dev, (offset), \
_stack_restore(stack, 0x1, \
(offset))); \
} while (0)
#define radio_stacksave(offset) \
do { \
_stack_save(stack, &stackidx, 0x2, (offset), \
b43legacy_radio_read16(dev, (offset))); \
} while (0)
#define radio_stackrestore(offset) \
do { \
b43legacy_radio_write16(dev, (offset), \
_stack_restore(stack, 0x2, \
(offset))); \
} while (0)
#define ilt_stacksave(offset) \
do { \
_stack_save(stack, &stackidx, 0x3, (offset), \
b43legacy_ilt_read(dev, (offset))); \
} while (0)
#define ilt_stackrestore(offset) \
do { \
b43legacy_ilt_write(dev, (offset), \
_stack_restore(stack, 0x3, \
(offset))); \
} while (0)
static void
b43legacy_radio_interference_mitigation_enable(struct b43legacy_wldev *dev,
int mode)
{
struct b43legacy_phy *phy = &dev->phy;
u16 tmp;
u16 flipped;
u32 tmp32;
size_t stackidx = 0;
u32 *stack = phy->interfstack;
switch (mode) {
case B43legacy_RADIO_INTERFMODE_NONWLAN:
if (phy->rev != 1) {
b43legacy_phy_write(dev, 0x042B,
b43legacy_phy_read(dev, 0x042B)
| 0x0800);
b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
b43legacy_phy_read(dev,
B43legacy_PHY_G_CRS) & ~0x4000);
break;
}
radio_stacksave(0x0078);
tmp = (b43legacy_radio_read16(dev, 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;
b43legacy_radio_write16(dev, 0x0078, flipped);
b43legacy_calc_nrssi_threshold(dev);
phy_stacksave(0x0406);
b43legacy_phy_write(dev, 0x0406, 0x7E28);
b43legacy_phy_write(dev, 0x042B,
b43legacy_phy_read(dev, 0x042B) | 0x0800);
b43legacy_phy_write(dev, B43legacy_PHY_RADIO_BITFIELD,
b43legacy_phy_read(dev,
B43legacy_PHY_RADIO_BITFIELD) | 0x1000);
phy_stacksave(0x04A0);
b43legacy_phy_write(dev, 0x04A0,
(b43legacy_phy_read(dev, 0x04A0) & 0xC0C0)
| 0x0008);
phy_stacksave(0x04A1);
b43legacy_phy_write(dev, 0x04A1,
(b43legacy_phy_read(dev, 0x04A1) & 0xC0C0)
| 0x0605);
phy_stacksave(0x04A2);
b43legacy_phy_write(dev, 0x04A2,
(b43legacy_phy_read(dev, 0x04A2) & 0xC0C0)
| 0x0204);
phy_stacksave(0x04A8);
b43legacy_phy_write(dev, 0x04A8,
(b43legacy_phy_read(dev, 0x04A8) & 0xC0C0)
| 0x0803);
phy_stacksave(0x04AB);
b43legacy_phy_write(dev, 0x04AB,
(b43legacy_phy_read(dev, 0x04AB) & 0xC0C0)
| 0x0605);
phy_stacksave(0x04A7);
b43legacy_phy_write(dev, 0x04A7, 0x0002);
phy_stacksave(0x04A3);
b43legacy_phy_write(dev, 0x04A3, 0x287A);
phy_stacksave(0x04A9);
b43legacy_phy_write(dev, 0x04A9, 0x2027);
phy_stacksave(0x0493);
b43legacy_phy_write(dev, 0x0493, 0x32F5);
phy_stacksave(0x04AA);
b43legacy_phy_write(dev, 0x04AA, 0x2027);
phy_stacksave(0x04AC);
b43legacy_phy_write(dev, 0x04AC, 0x32F5);
break;
case B43legacy_RADIO_INTERFMODE_MANUALWLAN:
if (b43legacy_phy_read(dev, 0x0033) & 0x0800)
break;
phy->aci_enable = true;
phy_stacksave(B43legacy_PHY_RADIO_BITFIELD);
phy_stacksave(B43legacy_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);
b43legacy_phy_write(dev, B43legacy_PHY_RADIO_BITFIELD,
b43legacy_phy_read(dev,
B43legacy_PHY_RADIO_BITFIELD) & ~0x1000);
b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
(b43legacy_phy_read(dev,
B43legacy_PHY_G_CRS)
& 0xFFFC) | 0x0002);
b43legacy_phy_write(dev, 0x0033, 0x0800);
b43legacy_phy_write(dev, 0x04A3, 0x2027);
b43legacy_phy_write(dev, 0x04A9, 0x1CA8);
b43legacy_phy_write(dev, 0x0493, 0x287A);
b43legacy_phy_write(dev, 0x04AA, 0x1CA8);
b43legacy_phy_write(dev, 0x04AC, 0x287A);
b43legacy_phy_write(dev, 0x04A0,
(b43legacy_phy_read(dev, 0x04A0)
& 0xFFC0) | 0x001A);
b43legacy_phy_write(dev, 0x04A7, 0x000D);
if (phy->rev < 2)
b43legacy_phy_write(dev, 0x0406, 0xFF0D);
else if (phy->rev == 2) {
b43legacy_phy_write(dev, 0x04C0, 0xFFFF);
b43legacy_phy_write(dev, 0x04C1, 0x00A9);
} else {
b43legacy_phy_write(dev, 0x04C0, 0x00C1);
b43legacy_phy_write(dev, 0x04C1, 0x0059);
}
b43legacy_phy_write(dev, 0x04A1,
(b43legacy_phy_read(dev, 0x04A1)
& 0xC0FF) | 0x1800);
b43legacy_phy_write(dev, 0x04A1,
(b43legacy_phy_read(dev, 0x04A1)
& 0xFFC0) | 0x0015);
b43legacy_phy_write(dev, 0x04A8,
(b43legacy_phy_read(dev, 0x04A8)
& 0xCFFF) | 0x1000);
b43legacy_phy_write(dev, 0x04A8,
(b43legacy_phy_read(dev, 0x04A8)
& 0xF0FF) | 0x0A00);
b43legacy_phy_write(dev, 0x04AB,
(b43legacy_phy_read(dev, 0x04AB)
& 0xCFFF) | 0x1000);
b43legacy_phy_write(dev, 0x04AB,
(b43legacy_phy_read(dev, 0x04AB)
& 0xF0FF) | 0x0800);
b43legacy_phy_write(dev, 0x04AB,
(b43legacy_phy_read(dev, 0x04AB)
& 0xFFCF) | 0x0010);
b43legacy_phy_write(dev, 0x04AB,
(b43legacy_phy_read(dev, 0x04AB)
& 0xFFF0) | 0x0005);
b43legacy_phy_write(dev, 0x04A8,
(b43legacy_phy_read(dev, 0x04A8)
& 0xFFCF) | 0x0010);
b43legacy_phy_write(dev, 0x04A8,
(b43legacy_phy_read(dev, 0x04A8)
& 0xFFF0) | 0x0006);
b43legacy_phy_write(dev, 0x04A2,
(b43legacy_phy_read(dev, 0x04A2)
& 0xF0FF) | 0x0800);
b43legacy_phy_write(dev, 0x04A0,
(b43legacy_phy_read(dev, 0x04A0)
& 0xF0FF) | 0x0500);
b43legacy_phy_write(dev, 0x04A2,
(b43legacy_phy_read(dev, 0x04A2)
& 0xFFF0) | 0x000B);
if (phy->rev >= 3) {
b43legacy_phy_write(dev, 0x048A,
b43legacy_phy_read(dev, 0x048A)
& ~0x8000);
b43legacy_phy_write(dev, 0x0415,
(b43legacy_phy_read(dev, 0x0415)
& 0x8000) | 0x36D8);
b43legacy_phy_write(dev, 0x0416,
(b43legacy_phy_read(dev, 0x0416)
& 0x8000) | 0x36D8);
b43legacy_phy_write(dev, 0x0417,
(b43legacy_phy_read(dev, 0x0417)
& 0xFE00) | 0x016D);
} else {
b43legacy_phy_write(dev, 0x048A,
b43legacy_phy_read(dev, 0x048A)
| 0x1000);
b43legacy_phy_write(dev, 0x048A,
(b43legacy_phy_read(dev, 0x048A)
& 0x9FFF) | 0x2000);
tmp32 = b43legacy_shm_read32(dev, B43legacy_SHM_SHARED,
B43legacy_UCODEFLAGS_OFFSET);
if (!(tmp32 & 0x800)) {
tmp32 |= 0x800;
b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
B43legacy_UCODEFLAGS_OFFSET,
tmp32);
}
}
if (phy->rev >= 2)
b43legacy_phy_write(dev, 0x042B,
b43legacy_phy_read(dev, 0x042B)
| 0x0800);
b43legacy_phy_write(dev, 0x048C,
(b43legacy_phy_read(dev, 0x048C)
& 0xF0FF) | 0x0200);
if (phy->rev == 2) {
b43legacy_phy_write(dev, 0x04AE,
(b43legacy_phy_read(dev, 0x04AE)
& 0xFF00) | 0x007F);
b43legacy_phy_write(dev, 0x04AD,
(b43legacy_phy_read(dev, 0x04AD)
& 0x00FF) | 0x1300);
} else if (phy->rev >= 6) {
b43legacy_ilt_write(dev, 0x1A00 + 0x3, 0x007F);
b43legacy_ilt_write(dev, 0x1A00 + 0x2, 0x007F);
b43legacy_phy_write(dev, 0x04AD,
b43legacy_phy_read(dev, 0x04AD)
& 0x00FF);
}
b43legacy_calc_nrssi_slope(dev);
break;
default:
B43legacy_BUG_ON(1);
}
}
static void
b43legacy_radio_interference_mitigation_disable(struct b43legacy_wldev *dev,
int mode)
{
struct b43legacy_phy *phy = &dev->phy;
u32 tmp32;
u32 *stack = phy->interfstack;
switch (mode) {
case B43legacy_RADIO_INTERFMODE_NONWLAN:
if (phy->rev != 1) {
b43legacy_phy_write(dev, 0x042B,
b43legacy_phy_read(dev, 0x042B)
& ~0x0800);
b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
b43legacy_phy_read(dev,
B43legacy_PHY_G_CRS) | 0x4000);
break;
}
phy_stackrestore(0x0078);
b43legacy_calc_nrssi_threshold(dev);
phy_stackrestore(0x0406);
b43legacy_phy_write(dev, 0x042B,
b43legacy_phy_read(dev, 0x042B) & ~0x0800);
if (!dev->bad_frames_preempt)
b43legacy_phy_write(dev, B43legacy_PHY_RADIO_BITFIELD,
b43legacy_phy_read(dev,
B43legacy_PHY_RADIO_BITFIELD)
& ~(1 << 11));
b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
b43legacy_phy_read(dev, B43legacy_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 B43legacy_RADIO_INTERFMODE_MANUALWLAN:
if (!(b43legacy_phy_read(dev, 0x0033) & 0x0800))
break;
phy->aci_enable = false;
phy_stackrestore(B43legacy_PHY_RADIO_BITFIELD);
phy_stackrestore(B43legacy_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 = b43legacy_shm_read32(dev, B43legacy_SHM_SHARED,
B43legacy_UCODEFLAGS_OFFSET);
if (tmp32 & 0x800) {
tmp32 &= ~0x800;
b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
B43legacy_UCODEFLAGS_OFFSET,
tmp32);
}
b43legacy_calc_nrssi_slope(dev);
break;
default:
B43legacy_BUG_ON(1);
}
}
#undef phy_stacksave
#undef phy_stackrestore
#undef radio_stacksave
#undef radio_stackrestore
#undef ilt_stacksave
#undef ilt_stackrestore
int b43legacy_radio_set_interference_mitigation(struct b43legacy_wldev *dev,
int mode)
{
struct b43legacy_phy *phy = &dev->phy;
int currentmode;
if ((phy->type != B43legacy_PHYTYPE_G) ||
(phy->rev == 0) || (!phy->gmode))
return -ENODEV;
phy->aci_wlan_automatic = false;
switch (mode) {
case B43legacy_RADIO_INTERFMODE_AUTOWLAN:
phy->aci_wlan_automatic = true;
if (phy->aci_enable)
mode = B43legacy_RADIO_INTERFMODE_MANUALWLAN;
else
mode = B43legacy_RADIO_INTERFMODE_NONE;
break;
case B43legacy_RADIO_INTERFMODE_NONE:
case B43legacy_RADIO_INTERFMODE_NONWLAN:
case B43legacy_RADIO_INTERFMODE_MANUALWLAN:
break;
default:
return -EINVAL;
}
currentmode = phy->interfmode;
if (currentmode == mode)
return 0;
if (currentmode != B43legacy_RADIO_INTERFMODE_NONE)
b43legacy_radio_interference_mitigation_disable(dev,
currentmode);
if (mode == B43legacy_RADIO_INTERFMODE_NONE) {
phy->aci_enable = false;
phy->aci_hw_rssi = false;
} else
b43legacy_radio_interference_mitigation_enable(dev, mode);
phy->interfmode = mode;
return 0;
}
u16 b43legacy_radio_calibrationvalue(struct b43legacy_wldev *dev)
{
u16 reg;
u16 index;
u16 ret;
reg = b43legacy_radio_read16(dev, 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 b43legacy_get_812_value(struct b43legacy_wldev *dev, u8 lpd)
{
struct b43legacy_phy *phy = &dev->phy;
u16 loop_or = 0;
u16 adj_loopback_gain = phy->loopback_gain[0];
u8 loop;
u16 extern_lna_control;
if (!phy->gmode)
return 0;
if (!has_loopback_gain(phy)) {
if (phy->rev < 7 || !(dev->dev->bus->sprom.boardflags_lo
& B43legacy_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:
B43legacy_BUG_ON(1);
}
} 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:
B43legacy_BUG_ON(1);
}
}
} else {
if (phy->radio_rev == 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 && dev->dev->bus->sprom.boardflags_lo
& B43legacy_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:
B43legacy_BUG_ON(1);
}
} 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:
B43legacy_BUG_ON(1);
}
}
}
return 0;
}
u16 b43legacy_radio_init2050(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
u16 backup[21] = { 0 };
u16 ret;
u16 i;
u16 j;
u32 tmp1 = 0;
u32 tmp2 = 0;
backup[0] = b43legacy_radio_read16(dev, 0x0043);
backup[14] = b43legacy_radio_read16(dev, 0x0051);
backup[15] = b43legacy_radio_read16(dev, 0x0052);
backup[1] = b43legacy_phy_read(dev, 0x0015);
backup[16] = b43legacy_phy_read(dev, 0x005A);
backup[17] = b43legacy_phy_read(dev, 0x0059);
backup[18] = b43legacy_phy_read(dev, 0x0058);
if (phy->type == B43legacy_PHYTYPE_B) {
backup[2] = b43legacy_phy_read(dev, 0x0030);
backup[3] = b43legacy_read16(dev, 0x03EC);
b43legacy_phy_write(dev, 0x0030, 0x00FF);
b43legacy_write16(dev, 0x03EC, 0x3F3F);
} else {
if (phy->gmode) {
backup[4] = b43legacy_phy_read(dev, 0x0811);
backup[5] = b43legacy_phy_read(dev, 0x0812);
backup[6] = b43legacy_phy_read(dev, 0x0814);
backup[7] = b43legacy_phy_read(dev, 0x0815);
backup[8] = b43legacy_phy_read(dev,
B43legacy_PHY_G_CRS);
backup[9] = b43legacy_phy_read(dev, 0x0802);
b43legacy_phy_write(dev, 0x0814,
(b43legacy_phy_read(dev, 0x0814)
| 0x0003));
b43legacy_phy_write(dev, 0x0815,
(b43legacy_phy_read(dev, 0x0815)
& 0xFFFC));
b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
(b43legacy_phy_read(dev,
B43legacy_PHY_G_CRS) & 0x7FFF));
b43legacy_phy_write(dev, 0x0802,
(b43legacy_phy_read(dev, 0x0802)
& 0xFFFC));
if (phy->rev > 1) { /* loopback gain enabled */
backup[19] = b43legacy_phy_read(dev, 0x080F);
backup[20] = b43legacy_phy_read(dev, 0x0810);
if (phy->rev >= 3)
b43legacy_phy_write(dev, 0x080F,
0xC020);
else
b43legacy_phy_write(dev, 0x080F,
0x8020);
b43legacy_phy_write(dev, 0x0810, 0x0000);
}
b43legacy_phy_write(dev, 0x0812,
b43legacy_get_812_value(dev,
LPD(0, 1, 1)));
if (phy->rev < 7 ||
!(dev->dev->bus->sprom.boardflags_lo
& B43legacy_BFL_EXTLNA))
b43legacy_phy_write(dev, 0x0811, 0x01B3);
else
b43legacy_phy_write(dev, 0x0811, 0x09B3);
}
}
b43legacy_write16(dev, B43legacy_MMIO_PHY_RADIO,
(b43legacy_read16(dev, B43legacy_MMIO_PHY_RADIO)
| 0x8000));
backup[10] = b43legacy_phy_read(dev, 0x0035);
b43legacy_phy_write(dev, 0x0035,
(b43legacy_phy_read(dev, 0x0035) & 0xFF7F));
backup[11] = b43legacy_read16(dev, 0x03E6);
backup[12] = b43legacy_read16(dev, B43legacy_MMIO_CHANNEL_EXT);
/* Initialization */
if (phy->analog == 0)
b43legacy_write16(dev, 0x03E6, 0x0122);
else {
if (phy->analog >= 2)
b43legacy_phy_write(dev, 0x0003,
(b43legacy_phy_read(dev, 0x0003)
& 0xFFBF) | 0x0040);
b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT,
(b43legacy_read16(dev,
B43legacy_MMIO_CHANNEL_EXT) | 0x2000));
}
ret = b43legacy_radio_calibrationvalue(dev);
if (phy->type == B43legacy_PHYTYPE_B)
b43legacy_radio_write16(dev, 0x0078, 0x0026);
if (phy->gmode)
b43legacy_phy_write(dev, 0x0812,
b43legacy_get_812_value(dev,
LPD(0, 1, 1)));
b43legacy_phy_write(dev, 0x0015, 0xBFAF);
b43legacy_phy_write(dev, 0x002B, 0x1403);
if (phy->gmode)
b43legacy_phy_write(dev, 0x0812,
b43legacy_get_812_value(dev,
LPD(0, 0, 1)));
b43legacy_phy_write(dev, 0x0015, 0xBFA0);
b43legacy_radio_write16(dev, 0x0051,
(b43legacy_radio_read16(dev, 0x0051)
| 0x0004));
if (phy->radio_rev == 8)
b43legacy_radio_write16(dev, 0x0043, 0x001F);
else {
b43legacy_radio_write16(dev, 0x0052, 0x0000);
b43legacy_radio_write16(dev, 0x0043,
(b43legacy_radio_read16(dev, 0x0043)
& 0xFFF0) | 0x0009);
}
b43legacy_phy_write(dev, 0x0058, 0x0000);
for (i = 0; i < 16; i++) {
b43legacy_phy_write(dev, 0x005A, 0x0480);
b43legacy_phy_write(dev, 0x0059, 0xC810);
b43legacy_phy_write(dev, 0x0058, 0x000D);
if (phy->gmode)
b43legacy_phy_write(dev, 0x0812,
b43legacy_get_812_value(dev,
LPD(1, 0, 1)));
b43legacy_phy_write(dev, 0x0015, 0xAFB0);
udelay(10);
if (phy->gmode)
b43legacy_phy_write(dev, 0x0812,
b43legacy_get_812_value(dev,
LPD(1, 0, 1)));
b43legacy_phy_write(dev, 0x0015, 0xEFB0);
udelay(10);
if (phy->gmode)
b43legacy_phy_write(dev, 0x0812,
b43legacy_get_812_value(dev,
LPD(1, 0, 0)));
b43legacy_phy_write(dev, 0x0015, 0xFFF0);
udelay(20);
tmp1 += b43legacy_phy_read(dev, 0x002D);
b43legacy_phy_write(dev, 0x0058, 0x0000);
if (phy->gmode)
b43legacy_phy_write(dev, 0x0812,
b43legacy_get_812_value(dev,
LPD(1, 0, 1)));
b43legacy_phy_write(dev, 0x0015, 0xAFB0);
}
tmp1++;
tmp1 >>= 9;
udelay(10);
b43legacy_phy_write(dev, 0x0058, 0x0000);
for (i = 0; i < 16; i++) {
b43legacy_radio_write16(dev, 0x0078, (flip_4bit(i) << 1)
| 0x0020);
backup[13] = b43legacy_radio_read16(dev, 0x0078);
udelay(10);
for (j = 0; j < 16; j++) {
b43legacy_phy_write(dev, 0x005A, 0x0D80);
b43legacy_phy_write(dev, 0x0059, 0xC810);
b43legacy_phy_write(dev, 0x0058, 0x000D);
if (phy->gmode)
b43legacy_phy_write(dev, 0x0812,
b43legacy_get_812_value(dev,
LPD(1, 0, 1)));
b43legacy_phy_write(dev, 0x0015, 0xAFB0);
udelay(10);
if (phy->gmode)
b43legacy_phy_write(dev, 0x0812,
b43legacy_get_812_value(dev,
LPD(1, 0, 1)));
b43legacy_phy_write(dev, 0x0015, 0xEFB0);
udelay(10);
if (phy->gmode)
b43legacy_phy_write(dev, 0x0812,
b43legacy_get_812_value(dev,
LPD(1, 0, 0)));
b43legacy_phy_write(dev, 0x0015, 0xFFF0);
udelay(10);
tmp2 += b43legacy_phy_read(dev, 0x002D);
b43legacy_phy_write(dev, 0x0058, 0x0000);
if (phy->gmode)
b43legacy_phy_write(dev, 0x0812,
b43legacy_get_812_value(dev,
LPD(1, 0, 1)));
b43legacy_phy_write(dev, 0x0015, 0xAFB0);
}
tmp2++;
tmp2 >>= 8;
if (tmp1 < tmp2)
break;
}
/* Restore the registers */
b43legacy_phy_write(dev, 0x0015, backup[1]);
b43legacy_radio_write16(dev, 0x0051, backup[14]);
b43legacy_radio_write16(dev, 0x0052, backup[15]);
b43legacy_radio_write16(dev, 0x0043, backup[0]);
b43legacy_phy_write(dev, 0x005A, backup[16]);
b43legacy_phy_write(dev, 0x0059, backup[17]);
b43legacy_phy_write(dev, 0x0058, backup[18]);
b43legacy_write16(dev, 0x03E6, backup[11]);
if (phy->analog != 0)
b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT, backup[12]);
b43legacy_phy_write(dev, 0x0035, backup[10]);
b43legacy_radio_selectchannel(dev, phy->channel, 1);
if (phy->type == B43legacy_PHYTYPE_B) {
b43legacy_phy_write(dev, 0x0030, backup[2]);
b43legacy_write16(dev, 0x03EC, backup[3]);
} else {
if (phy->gmode) {
b43legacy_write16(dev, B43legacy_MMIO_PHY_RADIO,
(b43legacy_read16(dev,
B43legacy_MMIO_PHY_RADIO) & 0x7FFF));
b43legacy_phy_write(dev, 0x0811, backup[4]);
b43legacy_phy_write(dev, 0x0812, backup[5]);
b43legacy_phy_write(dev, 0x0814, backup[6]);
b43legacy_phy_write(dev, 0x0815, backup[7]);
b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
backup[8]);
b43legacy_phy_write(dev, 0x0802, backup[9]);
if (phy->rev > 1) {
b43legacy_phy_write(dev, 0x080F, backup[19]);
b43legacy_phy_write(dev, 0x0810, backup[20]);
}
}
}
if (i >= 15)
ret = backup[13];
return ret;
}
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 b43legacy_radio_set_tx_iq(struct b43legacy_wldev *dev)
{
static const u8 data_high[5] = { 0x00, 0x40, 0x80, 0x90, 0xD0 };
static const u8 data_low[5] = { 0x00, 0x01, 0x05, 0x06, 0x0A };
u16 tmp = b43legacy_radio_read16(dev, 0x001E);
int i;
int j;
for (i = 0; i < 5; i++) {
for (j = 0; j < 5; j++) {
if (tmp == (data_high[i] | data_low[j])) {
b43legacy_phy_write(dev, 0x0069, (i - j) << 8 |
0x00C0);
return;
}
}
}
}
int b43legacy_radio_selectchannel(struct b43legacy_wldev *dev,
u8 channel,
int synthetic_pu_workaround)
{
struct b43legacy_phy *phy = &dev->phy;
if (channel == 0xFF) {
switch (phy->type) {
case B43legacy_PHYTYPE_B:
case B43legacy_PHYTYPE_G:
channel = B43legacy_RADIO_DEFAULT_CHANNEL_BG;
break;
default:
B43legacy_WARN_ON(1);
}
}
/* TODO: Check if channel is valid - return -EINVAL if not */
if (synthetic_pu_workaround)
b43legacy_synth_pu_workaround(dev, channel);
b43legacy_write16(dev, B43legacy_MMIO_CHANNEL,
channel2freq_bg(channel));
if (channel == 14) {
if (dev->dev->bus->sprom.country_code == 5) /* JAPAN) */
b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
B43legacy_UCODEFLAGS_OFFSET,
b43legacy_shm_read32(dev,
B43legacy_SHM_SHARED,
B43legacy_UCODEFLAGS_OFFSET)
& ~(1 << 7));
else
b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
B43legacy_UCODEFLAGS_OFFSET,
b43legacy_shm_read32(dev,
B43legacy_SHM_SHARED,
B43legacy_UCODEFLAGS_OFFSET)
| (1 << 7));
b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT,
b43legacy_read16(dev,
B43legacy_MMIO_CHANNEL_EXT) | (1 << 11));
} else
b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT,
b43legacy_read16(dev,
B43legacy_MMIO_CHANNEL_EXT) & 0xF7BF);
phy->channel = channel;
/*XXX: Using the longer of 2 timeouts (8000 vs 2000 usecs). Specs states
* that 2000 usecs might suffice. */
msleep(8);
return 0;
}
void b43legacy_radio_set_txantenna(struct b43legacy_wldev *dev, u32 val)
{
u16 tmp;
val <<= 8;
tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x0022) & 0xFCFF;
b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0022, tmp | val);
tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x03A8) & 0xFCFF;
b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x03A8, tmp | val);
tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x0054) & 0xFCFF;
b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0054, tmp | val);
}
/* http://bcm-specs.sipsolutions.net/TX_Gain_Base_Band */
static u16 b43legacy_get_txgain_base_band(u16 txpower)
{
u16 ret;
B43legacy_WARN_ON(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 b43legacy_get_txgain_freq_power_amp(u16 txpower)
{
u16 ret;
B43legacy_WARN_ON(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 b43legacy_get_txgain_dac(u16 txpower)
{
u16 ret;
B43legacy_WARN_ON(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 b43legacy_radio_set_txpower_a(struct b43legacy_wldev *dev, u16 txpower)
{
struct b43legacy_phy *phy = &dev->phy;
u16 pamp;
u16 base;
u16 dac;
u16 ilt;
txpower = clamp_val(txpower, 0, 63);
pamp = b43legacy_get_txgain_freq_power_amp(txpower);
pamp <<= 5;
pamp &= 0x00E0;
b43legacy_phy_write(dev, 0x0019, pamp);
base = b43legacy_get_txgain_base_band(txpower);
base &= 0x000F;
b43legacy_phy_write(dev, 0x0017, base | 0x0020);
ilt = b43legacy_ilt_read(dev, 0x3001);
ilt &= 0x0007;
dac = b43legacy_get_txgain_dac(txpower);
dac <<= 3;
dac |= ilt;
b43legacy_ilt_write(dev, 0x3001, dac);
phy->txpwr_offset = txpower;
/* TODO: FuncPlaceholder (Adjust BB loft cancel) */
}
void b43legacy_radio_set_txpower_bg(struct b43legacy_wldev *dev,
u16 baseband_attenuation,
u16 radio_attenuation,
u16 txpower)
{
struct b43legacy_phy *phy = &dev->phy;
if (baseband_attenuation == 0xFFFF)
baseband_attenuation = phy->bbatt;
if (radio_attenuation == 0xFFFF)
radio_attenuation = phy->rfatt;
if (txpower == 0xFFFF)
txpower = phy->txctl1;
phy->bbatt = baseband_attenuation;
phy->rfatt = radio_attenuation;
phy->txctl1 = txpower;
B43legacy_WARN_ON(baseband_attenuation > 11);
if (phy->radio_rev < 6)
B43legacy_WARN_ON(radio_attenuation > 9);
else
B43legacy_WARN_ON(radio_attenuation > 31);
B43legacy_WARN_ON(txpower > 7);
b43legacy_phy_set_baseband_attenuation(dev, baseband_attenuation);
b43legacy_radio_write16(dev, 0x0043, radio_attenuation);
b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0064,
radio_attenuation);
if (phy->radio_ver == 0x2050)
b43legacy_radio_write16(dev, 0x0052,
(b43legacy_radio_read16(dev, 0x0052)
& ~0x0070) | ((txpower << 4) & 0x0070));
/* FIXME: The spec is very weird and unclear here. */
if (phy->type == B43legacy_PHYTYPE_G)
b43legacy_phy_lo_adjust(dev, 0);
}
u16 b43legacy_default_baseband_attenuation(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
if (phy->radio_ver == 0x2050 && phy->radio_rev < 6)
return 0;
return 2;
}
u16 b43legacy_default_radio_attenuation(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
u16 att = 0xFFFF;
switch (phy->radio_ver) {
case 0x2053:
switch (phy->radio_rev) {
case 1:
att = 6;
break;
}
break;
case 0x2050:
switch (phy->radio_rev) {
case 0:
att = 5;
break;
case 1:
if (phy->type == B43legacy_PHYTYPE_G) {
if (is_bcm_board_vendor(dev) &&
dev->dev->bus->boardinfo.type == 0x421 &&
dev->dev->bus->sprom.board_rev >= 30)
att = 3;
else if (is_bcm_board_vendor(dev) &&
dev->dev->bus->boardinfo.type == 0x416)
att = 3;
else
att = 1;
} else {
if (is_bcm_board_vendor(dev) &&
dev->dev->bus->boardinfo.type == 0x421 &&
dev->dev->bus->sprom.board_rev >= 30)
att = 7;
else
att = 6;
}
break;
case 2:
if (phy->type == B43legacy_PHYTYPE_G) {
if (is_bcm_board_vendor(dev) &&
dev->dev->bus->boardinfo.type == 0x421 &&
dev->dev->bus->sprom.board_rev >= 30)
att = 3;
else if (is_bcm_board_vendor(dev) &&
dev->dev->bus->boardinfo.type ==
0x416)
att = 5;
else if (dev->dev->bus->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 (is_bcm_board_vendor(dev) &&
dev->dev->bus->boardinfo.type == 0x421) {
if (dev->dev->bus->sprom.board_rev < 0x43)
att = 2;
else if (dev->dev->bus->sprom.board_rev < 0x51)
att = 3;
}
if (att == 0xFFFF)
att = 5;
return att;
}
u16 b43legacy_default_txctl1(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
if (phy->radio_ver != 0x2050)
return 0;
if (phy->radio_rev == 1)
return 3;
if (phy->radio_rev < 6)
return 2;
if (phy->radio_rev == 8)
return 1;
return 0;
}
void b43legacy_radio_turn_on(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
int err;
u8 channel;
might_sleep();
if (phy->radio_on)
return;
switch (phy->type) {
case B43legacy_PHYTYPE_B:
case B43legacy_PHYTYPE_G:
b43legacy_phy_write(dev, 0x0015, 0x8000);
b43legacy_phy_write(dev, 0x0015, 0xCC00);
b43legacy_phy_write(dev, 0x0015,
(phy->gmode ? 0x00C0 : 0x0000));
if (phy->radio_off_context.valid) {
/* Restore the RFover values. */
b43legacy_phy_write(dev, B43legacy_PHY_RFOVER,
phy->radio_off_context.rfover);
b43legacy_phy_write(dev, B43legacy_PHY_RFOVERVAL,
phy->radio_off_context.rfoverval);
phy->radio_off_context.valid = false;
}
channel = phy->channel;
err = b43legacy_radio_selectchannel(dev,
B43legacy_RADIO_DEFAULT_CHANNEL_BG, 1);
err |= b43legacy_radio_selectchannel(dev, channel, 0);
B43legacy_WARN_ON(err);
break;
default:
B43legacy_BUG_ON(1);
}
phy->radio_on = true;
}
void b43legacy_radio_turn_off(struct b43legacy_wldev *dev, bool force)
{
struct b43legacy_phy *phy = &dev->phy;
if (!phy->radio_on && !force)
return;
if (phy->type == B43legacy_PHYTYPE_G && dev->dev->id.revision >= 5) {
u16 rfover, rfoverval;
rfover = b43legacy_phy_read(dev, B43legacy_PHY_RFOVER);
rfoverval = b43legacy_phy_read(dev, B43legacy_PHY_RFOVERVAL);
if (!force) {
phy->radio_off_context.rfover = rfover;
phy->radio_off_context.rfoverval = rfoverval;
phy->radio_off_context.valid = true;
}
b43legacy_phy_write(dev, B43legacy_PHY_RFOVER, rfover | 0x008C);
b43legacy_phy_write(dev, B43legacy_PHY_RFOVERVAL,
rfoverval & 0xFF73);
} else
b43legacy_phy_write(dev, 0x0015, 0xAA00);
phy->radio_on = false;
b43legacydbg(dev->wl, "Radio initialized\n");
}
void b43legacy_radio_clear_tssi(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
switch (phy->type) {
case B43legacy_PHYTYPE_B:
case B43legacy_PHYTYPE_G:
b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0058,
0x7F7F);
b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x005a,
0x7F7F);
b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0070,
0x7F7F);
b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0072,
0x7F7F);
break;
}
}
