// SPDX-License-Identifier: GPL-2.0-or-later
/*
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.
*/
#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);
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);
}
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);
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] = {
0 };
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) ? 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];
}
/* https://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);
b43legacy_phy_write(dev, B43legacy_PHY_NRSSILT_DATA, (u16)val);
}
/* https://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;
}
/* https://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);
}
}
/* https://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;
}
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;
}
}