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linux/drivers/net/wireless/bcm43xx/bcm43xx_radio.c
Larry Finger fc8fd3400b [PATCH] Convert bcm43xx-softmac to use the ieee80211_is_valid_channel routine 
The current version of bcm43xx-softmac uses local routines to check
if a channel is valid. As noted in the comments, these routines do
not take any regulatory information into account. This patch converts
the code to use the equivalent routine in ieee80211, which is being
converted to know about regulatory information.

Signed-Off-By: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-07-05 13:42:57 -04:00

2023 lines
58 KiB
C
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/*
Broadcom BCM43xx wireless driver
Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
Stefano Brivio <st3@riseup.net>
Michael Buesch <mbuesch@freenet.de>
Danny van Dyk <kugelfang@gentoo.org>
Andreas Jaggi <andreas.jaggi@waterwave.ch>
Some parts of the code in this file are derived from the ipw2200
driver Copyright(c) 2003 - 2004 Intel Corporation.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <linux/delay.h>
#include "bcm43xx.h"
#include "bcm43xx_main.h"
#include "bcm43xx_phy.h"
#include "bcm43xx_radio.h"
#include "bcm43xx_ilt.h"
/* Table for bcm43xx_radio_calibrationvalue() */
static const u16 rcc_table[16] = {
0x0002, 0x0003, 0x0001, 0x000F,
0x0006, 0x0007, 0x0005, 0x000F,
0x000A, 0x000B, 0x0009, 0x000F,
0x000E, 0x000F, 0x000D, 0x000F,
};
/* Reverse the bits of a 4bit value.
* Example: 1101 is flipped 1011
*/
static u16 flip_4bit(u16 value)
{
u16 flipped = 0x0000;
assert((value & ~0x000F) == 0x0000);
flipped |= (value & 0x0001) << 3;
flipped |= (value & 0x0002) << 1;
flipped |= (value & 0x0004) >> 1;
flipped |= (value & 0x0008) >> 3;
return flipped;
}
/* Get the freq, as it has to be written to the device. */
static inline
u16 channel2freq_bg(u8 channel)
{
/* Frequencies are given as frequencies_bg[index] + 2.4GHz
* Starting with channel 1
*/
static const u16 frequencies_bg[14] = {
12, 17, 22, 27,
32, 37, 42, 47,
52, 57, 62, 67,
72, 84,
};
assert(channel >= 1 && channel <= 14);
return frequencies_bg[channel - 1];
}
/* Get the freq, as it has to be written to the device. */
static inline
u16 channel2freq_a(u8 channel)
{
assert(channel <= 200);
return (5000 + 5 * channel);
}
void bcm43xx_radio_lock(struct bcm43xx_private *bcm)
{
u32 status;
status = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD);
status |= BCM43xx_SBF_RADIOREG_LOCK;
bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, status);
mmiowb();
udelay(10);
}
void bcm43xx_radio_unlock(struct bcm43xx_private *bcm)
{
u32 status;
bcm43xx_read16(bcm, BCM43xx_MMIO_PHY_VER); /* dummy read */
status = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD);
status &= ~BCM43xx_SBF_RADIOREG_LOCK;
bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, status);
mmiowb();
}
u16 bcm43xx_radio_read16(struct bcm43xx_private *bcm, u16 offset)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
switch (phy->type) {
case BCM43xx_PHYTYPE_A:
offset |= 0x0040;
break;
case BCM43xx_PHYTYPE_B:
if (radio->version == 0x2053) {
if (offset < 0x70)
offset += 0x80;
else if (offset < 0x80)
offset += 0x70;
} else if (radio->version == 0x2050) {
offset |= 0x80;
} else
assert(0);
break;
case BCM43xx_PHYTYPE_G:
offset |= 0x80;
break;
}
bcm43xx_write16(bcm, BCM43xx_MMIO_RADIO_CONTROL, offset);
return bcm43xx_read16(bcm, BCM43xx_MMIO_RADIO_DATA_LOW);
}
void bcm43xx_radio_write16(struct bcm43xx_private *bcm, u16 offset, u16 val)
{
bcm43xx_write16(bcm, BCM43xx_MMIO_RADIO_CONTROL, offset);
mmiowb();
bcm43xx_write16(bcm, BCM43xx_MMIO_RADIO_DATA_LOW, val);
}
static void bcm43xx_set_all_gains(struct bcm43xx_private *bcm,
s16 first, s16 second, s16 third)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
u16 i;
u16 start = 0x08, end = 0x18;
u16 offset = 0x0400;
u16 tmp;
if (phy->rev <= 1) {
offset = 0x5000;
start = 0x10;
end = 0x20;
}
for (i = 0; i < 4; i++)
bcm43xx_ilt_write(bcm, offset + i, first);
for (i = start; i < end; i++)
bcm43xx_ilt_write(bcm, offset + i, second);
if (third != -1) {
tmp = ((u16)third << 14) | ((u16)third << 6);
bcm43xx_phy_write(bcm, 0x04A0,
(bcm43xx_phy_read(bcm, 0x04A0) & 0xBFBF) | tmp);
bcm43xx_phy_write(bcm, 0x04A1,
(bcm43xx_phy_read(bcm, 0x04A1) & 0xBFBF) | tmp);
bcm43xx_phy_write(bcm, 0x04A2,
(bcm43xx_phy_read(bcm, 0x04A2) & 0xBFBF) | tmp);
}
bcm43xx_dummy_transmission(bcm);
}
static void bcm43xx_set_original_gains(struct bcm43xx_private *bcm)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
u16 i, tmp;
u16 offset = 0x0400;
u16 start = 0x0008, end = 0x0018;
if (phy->rev <= 1) {
offset = 0x5000;
start = 0x0010;
end = 0x0020;
}
for (i = 0; i < 4; i++) {
tmp = (i & 0xFFFC);
tmp |= (i & 0x0001) << 1;
tmp |= (i & 0x0002) >> 1;
bcm43xx_ilt_write(bcm, offset + i, tmp);
}
for (i = start; i < end; i++)
bcm43xx_ilt_write(bcm, offset + i, i - start);
bcm43xx_phy_write(bcm, 0x04A0,
(bcm43xx_phy_read(bcm, 0x04A0) & 0xBFBF) | 0x4040);
bcm43xx_phy_write(bcm, 0x04A1,
(bcm43xx_phy_read(bcm, 0x04A1) & 0xBFBF) | 0x4040);
bcm43xx_phy_write(bcm, 0x04A2,
(bcm43xx_phy_read(bcm, 0x04A2) & 0xBFBF) | 0x4000);
bcm43xx_dummy_transmission(bcm);
}
/* Synthetic PU workaround */
static void bcm43xx_synth_pu_workaround(struct bcm43xx_private *bcm, u8 channel)
{
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
if (radio->version != 0x2050 || radio->revision >= 6) {
/* We do not need the workaround. */
return;
}
if (channel <= 10) {
bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL,
channel2freq_bg(channel + 4));
} else {
bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL,
channel2freq_bg(1));
}
udelay(100);
bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL,
channel2freq_bg(channel));
}
u8 bcm43xx_radio_aci_detect(struct bcm43xx_private *bcm, u8 channel)
{
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
u8 ret = 0;
u16 saved, rssi, temp;
int i, j = 0;
saved = bcm43xx_phy_read(bcm, 0x0403);
bcm43xx_radio_selectchannel(bcm, channel, 0);
bcm43xx_phy_write(bcm, 0x0403, (saved & 0xFFF8) | 5);
if (radio->aci_hw_rssi)
rssi = bcm43xx_phy_read(bcm, 0x048A) & 0x3F;
else
rssi = saved & 0x3F;
/* clamp temp to signed 5bit */
if (rssi > 32)
rssi -= 64;
for (i = 0;i < 100; i++) {
temp = (bcm43xx_phy_read(bcm, 0x047F) >> 8) & 0x3F;
if (temp > 32)
temp -= 64;
if (temp < rssi)
j++;
if (j >= 20)
ret = 1;
}
bcm43xx_phy_write(bcm, 0x0403, saved);
return ret;
}
u8 bcm43xx_radio_aci_scan(struct bcm43xx_private *bcm)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
u8 ret[13];
unsigned int channel = radio->channel;
unsigned int i, j, start, end;
unsigned long phylock_flags;
if (!((phy->type == BCM43xx_PHYTYPE_G) && (phy->rev > 0)))
return 0;
bcm43xx_phy_lock(bcm, phylock_flags);
bcm43xx_radio_lock(bcm);
bcm43xx_phy_write(bcm, 0x0802,
bcm43xx_phy_read(bcm, 0x0802) & 0xFFFC);
bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS,
bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS) & 0x7FFF);
bcm43xx_set_all_gains(bcm, 3, 8, 1);
start = (channel - 5 > 0) ? channel - 5 : 1;
end = (channel + 5 < 14) ? channel + 5 : 13;
for (i = start; i <= end; i++) {
if (abs(channel - i) > 2)
ret[i-1] = bcm43xx_radio_aci_detect(bcm, i);
}
bcm43xx_radio_selectchannel(bcm, channel, 0);
bcm43xx_phy_write(bcm, 0x0802,
(bcm43xx_phy_read(bcm, 0x0802) & 0xFFFC) | 0x0003);
bcm43xx_phy_write(bcm, 0x0403,
bcm43xx_phy_read(bcm, 0x0403) & 0xFFF8);
bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS,
bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS) | 0x8000);
bcm43xx_set_original_gains(bcm);
for (i = 0; i < 13; i++) {
if (!ret[i])
continue;
end = (i + 5 < 13) ? i + 5 : 13;
for (j = i; j < end; j++)
ret[j] = 1;
}
bcm43xx_radio_unlock(bcm);
bcm43xx_phy_unlock(bcm, phylock_flags);
return ret[channel - 1];
}
/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
void bcm43xx_nrssi_hw_write(struct bcm43xx_private *bcm, u16 offset, s16 val)
{
bcm43xx_phy_write(bcm, BCM43xx_PHY_NRSSILT_CTRL, offset);
mmiowb();
bcm43xx_phy_write(bcm, BCM43xx_PHY_NRSSILT_DATA, (u16)val);
}
/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
s16 bcm43xx_nrssi_hw_read(struct bcm43xx_private *bcm, u16 offset)
{
u16 val;
bcm43xx_phy_write(bcm, BCM43xx_PHY_NRSSILT_CTRL, offset);
val = bcm43xx_phy_read(bcm, BCM43xx_PHY_NRSSILT_DATA);
return (s16)val;
}
/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
void bcm43xx_nrssi_hw_update(struct bcm43xx_private *bcm, u16 val)
{
u16 i;
s16 tmp;
for (i = 0; i < 64; i++) {
tmp = bcm43xx_nrssi_hw_read(bcm, i);
tmp -= val;
tmp = limit_value(tmp, -32, 31);
bcm43xx_nrssi_hw_write(bcm, i, tmp);
}
}
/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
void bcm43xx_nrssi_mem_update(struct bcm43xx_private *bcm)
{
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
s16 i, delta;
s32 tmp;
delta = 0x1F - radio->nrssi[0];
for (i = 0; i < 64; i++) {
tmp = (i - delta) * radio->nrssislope;
tmp /= 0x10000;
tmp += 0x3A;
tmp = limit_value(tmp, 0, 0x3F);
radio->nrssi_lt[i] = tmp;
}
}
static void bcm43xx_calc_nrssi_offset(struct bcm43xx_private *bcm)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
u16 backup[20] = { 0 };
s16 v47F;
u16 i;
u16 saved = 0xFFFF;
backup[0] = bcm43xx_phy_read(bcm, 0x0001);
backup[1] = bcm43xx_phy_read(bcm, 0x0811);
backup[2] = bcm43xx_phy_read(bcm, 0x0812);
backup[3] = bcm43xx_phy_read(bcm, 0x0814);
backup[4] = bcm43xx_phy_read(bcm, 0x0815);
backup[5] = bcm43xx_phy_read(bcm, 0x005A);
backup[6] = bcm43xx_phy_read(bcm, 0x0059);
backup[7] = bcm43xx_phy_read(bcm, 0x0058);
backup[8] = bcm43xx_phy_read(bcm, 0x000A);
backup[9] = bcm43xx_phy_read(bcm, 0x0003);
backup[10] = bcm43xx_radio_read16(bcm, 0x007A);
backup[11] = bcm43xx_radio_read16(bcm, 0x0043);
bcm43xx_phy_write(bcm, 0x0429,
bcm43xx_phy_read(bcm, 0x0429) & 0x7FFF);
bcm43xx_phy_write(bcm, 0x0001,
(bcm43xx_phy_read(bcm, 0x0001) & 0x3FFF) | 0x4000);
bcm43xx_phy_write(bcm, 0x0811,
bcm43xx_phy_read(bcm, 0x0811) | 0x000C);
bcm43xx_phy_write(bcm, 0x0812,
(bcm43xx_phy_read(bcm, 0x0812) & 0xFFF3) | 0x0004);
bcm43xx_phy_write(bcm, 0x0802,
bcm43xx_phy_read(bcm, 0x0802) & ~(0x1 | 0x2));
if (phy->rev >= 6) {
backup[12] = bcm43xx_phy_read(bcm, 0x002E);
backup[13] = bcm43xx_phy_read(bcm, 0x002F);
backup[14] = bcm43xx_phy_read(bcm, 0x080F);
backup[15] = bcm43xx_phy_read(bcm, 0x0810);
backup[16] = bcm43xx_phy_read(bcm, 0x0801);
backup[17] = bcm43xx_phy_read(bcm, 0x0060);
backup[18] = bcm43xx_phy_read(bcm, 0x0014);
backup[19] = bcm43xx_phy_read(bcm, 0x0478);
bcm43xx_phy_write(bcm, 0x002E, 0);
bcm43xx_phy_write(bcm, 0x002F, 0);
bcm43xx_phy_write(bcm, 0x080F, 0);
bcm43xx_phy_write(bcm, 0x0810, 0);
bcm43xx_phy_write(bcm, 0x0478,
bcm43xx_phy_read(bcm, 0x0478) | 0x0100);
bcm43xx_phy_write(bcm, 0x0801,
bcm43xx_phy_read(bcm, 0x0801) | 0x0040);
bcm43xx_phy_write(bcm, 0x0060,
bcm43xx_phy_read(bcm, 0x0060) | 0x0040);
bcm43xx_phy_write(bcm, 0x0014,
bcm43xx_phy_read(bcm, 0x0014) | 0x0200);
}
bcm43xx_radio_write16(bcm, 0x007A,
bcm43xx_radio_read16(bcm, 0x007A) | 0x0070);
bcm43xx_radio_write16(bcm, 0x007A,
bcm43xx_radio_read16(bcm, 0x007A) | 0x0080);
udelay(30);
v47F = (s16)((bcm43xx_phy_read(bcm, 0x047F) >> 8) & 0x003F);
if (v47F >= 0x20)
v47F -= 0x40;
if (v47F == 31) {
for (i = 7; i >= 4; i--) {
bcm43xx_radio_write16(bcm, 0x007B, i);
udelay(20);
v47F = (s16)((bcm43xx_phy_read(bcm, 0x047F) >> 8) & 0x003F);
if (v47F >= 0x20)
v47F -= 0x40;
if (v47F < 31 && saved == 0xFFFF)
saved = i;
}
if (saved == 0xFFFF)
saved = 4;
} else {
bcm43xx_radio_write16(bcm, 0x007A,
bcm43xx_radio_read16(bcm, 0x007A) & 0x007F);
bcm43xx_phy_write(bcm, 0x0814,
bcm43xx_phy_read(bcm, 0x0814) | 0x0001);
bcm43xx_phy_write(bcm, 0x0815,
bcm43xx_phy_read(bcm, 0x0815) & 0xFFFE);
bcm43xx_phy_write(bcm, 0x0811,
bcm43xx_phy_read(bcm, 0x0811) | 0x000C);
bcm43xx_phy_write(bcm, 0x0812,
bcm43xx_phy_read(bcm, 0x0812) | 0x000C);
bcm43xx_phy_write(bcm, 0x0811,
bcm43xx_phy_read(bcm, 0x0811) | 0x0030);
bcm43xx_phy_write(bcm, 0x0812,
bcm43xx_phy_read(bcm, 0x0812) | 0x0030);
bcm43xx_phy_write(bcm, 0x005A, 0x0480);
bcm43xx_phy_write(bcm, 0x0059, 0x0810);
bcm43xx_phy_write(bcm, 0x0058, 0x000D);
if (phy->rev == 0) {
bcm43xx_phy_write(bcm, 0x0003, 0x0122);
} else {
bcm43xx_phy_write(bcm, 0x000A,
bcm43xx_phy_read(bcm, 0x000A)
| 0x2000);
}
bcm43xx_phy_write(bcm, 0x0814,
bcm43xx_phy_read(bcm, 0x0814) | 0x0004);
bcm43xx_phy_write(bcm, 0x0815,
bcm43xx_phy_read(bcm, 0x0815) & 0xFFFB);
bcm43xx_phy_write(bcm, 0x0003,
(bcm43xx_phy_read(bcm, 0x0003) & 0xFF9F)
| 0x0040);
bcm43xx_radio_write16(bcm, 0x007A,
bcm43xx_radio_read16(bcm, 0x007A) | 0x000F);
bcm43xx_set_all_gains(bcm, 3, 0, 1);
bcm43xx_radio_write16(bcm, 0x0043,
(bcm43xx_radio_read16(bcm, 0x0043)
& 0x00F0) | 0x000F);
udelay(30);
v47F = (s16)((bcm43xx_phy_read(bcm, 0x047F) >> 8) & 0x003F);
if (v47F >= 0x20)
v47F -= 0x40;
if (v47F == -32) {
for (i = 0; i < 4; i++) {
bcm43xx_radio_write16(bcm, 0x007B, i);
udelay(20);
v47F = (s16)((bcm43xx_phy_read(bcm, 0x047F) >> 8) & 0x003F);
if (v47F >= 0x20)
v47F -= 0x40;
if (v47F > -31 && saved == 0xFFFF)
saved = i;
}
if (saved == 0xFFFF)
saved = 3;
} else
saved = 0;
}
bcm43xx_radio_write16(bcm, 0x007B, saved);
if (phy->rev >= 6) {
bcm43xx_phy_write(bcm, 0x002E, backup[12]);
bcm43xx_phy_write(bcm, 0x002F, backup[13]);
bcm43xx_phy_write(bcm, 0x080F, backup[14]);
bcm43xx_phy_write(bcm, 0x0810, backup[15]);
}
bcm43xx_phy_write(bcm, 0x0814, backup[3]);
bcm43xx_phy_write(bcm, 0x0815, backup[4]);
bcm43xx_phy_write(bcm, 0x005A, backup[5]);
bcm43xx_phy_write(bcm, 0x0059, backup[6]);
bcm43xx_phy_write(bcm, 0x0058, backup[7]);
bcm43xx_phy_write(bcm, 0x000A, backup[8]);
bcm43xx_phy_write(bcm, 0x0003, backup[9]);
bcm43xx_radio_write16(bcm, 0x0043, backup[11]);
bcm43xx_radio_write16(bcm, 0x007A, backup[10]);
bcm43xx_phy_write(bcm, 0x0802,
bcm43xx_phy_read(bcm, 0x0802) | 0x1 | 0x2);
bcm43xx_phy_write(bcm, 0x0429,
bcm43xx_phy_read(bcm, 0x0429) | 0x8000);
bcm43xx_set_original_gains(bcm);
if (phy->rev >= 6) {
bcm43xx_phy_write(bcm, 0x0801, backup[16]);
bcm43xx_phy_write(bcm, 0x0060, backup[17]);
bcm43xx_phy_write(bcm, 0x0014, backup[18]);
bcm43xx_phy_write(bcm, 0x0478, backup[19]);
}
bcm43xx_phy_write(bcm, 0x0001, backup[0]);
bcm43xx_phy_write(bcm, 0x0812, backup[2]);
bcm43xx_phy_write(bcm, 0x0811, backup[1]);
}
void bcm43xx_calc_nrssi_slope(struct bcm43xx_private *bcm)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
u16 backup[18] = { 0 };
u16 tmp;
s16 nrssi0, nrssi1;
switch (phy->type) {
case BCM43xx_PHYTYPE_B:
backup[0] = bcm43xx_radio_read16(bcm, 0x007A);
backup[1] = bcm43xx_radio_read16(bcm, 0x0052);
backup[2] = bcm43xx_radio_read16(bcm, 0x0043);
backup[3] = bcm43xx_phy_read(bcm, 0x0030);
backup[4] = bcm43xx_phy_read(bcm, 0x0026);
backup[5] = bcm43xx_phy_read(bcm, 0x0015);
backup[6] = bcm43xx_phy_read(bcm, 0x002A);
backup[7] = bcm43xx_phy_read(bcm, 0x0020);
backup[8] = bcm43xx_phy_read(bcm, 0x005A);
backup[9] = bcm43xx_phy_read(bcm, 0x0059);
backup[10] = bcm43xx_phy_read(bcm, 0x0058);
backup[11] = bcm43xx_read16(bcm, 0x03E2);
backup[12] = bcm43xx_read16(bcm, 0x03E6);
backup[13] = bcm43xx_read16(bcm, BCM43xx_MMIO_CHANNEL_EXT);
tmp = bcm43xx_radio_read16(bcm, 0x007A);
tmp &= (phy->rev >= 5) ? 0x007F : 0x000F;
bcm43xx_radio_write16(bcm, 0x007A, tmp);
bcm43xx_phy_write(bcm, 0x0030, 0x00FF);
bcm43xx_write16(bcm, 0x03EC, 0x7F7F);
bcm43xx_phy_write(bcm, 0x0026, 0x0000);
bcm43xx_phy_write(bcm, 0x0015,
bcm43xx_phy_read(bcm, 0x0015) | 0x0020);
bcm43xx_phy_write(bcm, 0x002A, 0x08A3);
bcm43xx_radio_write16(bcm, 0x007A,
bcm43xx_radio_read16(bcm, 0x007A) | 0x0080);
nrssi0 = (s16)bcm43xx_phy_read(bcm, 0x0027);
bcm43xx_radio_write16(bcm, 0x007A,
bcm43xx_radio_read16(bcm, 0x007A) & 0x007F);
if (phy->rev >= 2) {
bcm43xx_write16(bcm, 0x03E6, 0x0040);
} else if (phy->rev == 0) {
bcm43xx_write16(bcm, 0x03E6, 0x0122);
} else {
bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL_EXT,
bcm43xx_read16(bcm, BCM43xx_MMIO_CHANNEL_EXT) & 0x2000);
}
bcm43xx_phy_write(bcm, 0x0020, 0x3F3F);
bcm43xx_phy_write(bcm, 0x0015, 0xF330);
bcm43xx_radio_write16(bcm, 0x005A, 0x0060);
bcm43xx_radio_write16(bcm, 0x0043,
bcm43xx_radio_read16(bcm, 0x0043) & 0x00F0);
bcm43xx_phy_write(bcm, 0x005A, 0x0480);
bcm43xx_phy_write(bcm, 0x0059, 0x0810);
bcm43xx_phy_write(bcm, 0x0058, 0x000D);
udelay(20);
nrssi1 = (s16)bcm43xx_phy_read(bcm, 0x0027);
bcm43xx_phy_write(bcm, 0x0030, backup[3]);
bcm43xx_radio_write16(bcm, 0x007A, backup[0]);
bcm43xx_write16(bcm, 0x03E2, backup[11]);
bcm43xx_phy_write(bcm, 0x0026, backup[4]);
bcm43xx_phy_write(bcm, 0x0015, backup[5]);
bcm43xx_phy_write(bcm, 0x002A, backup[6]);
bcm43xx_synth_pu_workaround(bcm, radio->channel);
if (phy->rev != 0)
bcm43xx_write16(bcm, 0x03F4, backup[13]);
bcm43xx_phy_write(bcm, 0x0020, backup[7]);
bcm43xx_phy_write(bcm, 0x005A, backup[8]);
bcm43xx_phy_write(bcm, 0x0059, backup[9]);
bcm43xx_phy_write(bcm, 0x0058, backup[10]);
bcm43xx_radio_write16(bcm, 0x0052, backup[1]);
bcm43xx_radio_write16(bcm, 0x0043, backup[2]);
if (nrssi0 == nrssi1)
radio->nrssislope = 0x00010000;
else
radio->nrssislope = 0x00400000 / (nrssi0 - nrssi1);
if (nrssi0 <= -4) {
radio->nrssi[0] = nrssi0;
radio->nrssi[1] = nrssi1;
}
break;
case BCM43xx_PHYTYPE_G:
if (radio->revision >= 9)
return;
if (radio->revision == 8)
bcm43xx_calc_nrssi_offset(bcm);
bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS,
bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS) & 0x7FFF);
bcm43xx_phy_write(bcm, 0x0802,
bcm43xx_phy_read(bcm, 0x0802) & 0xFFFC);
backup[7] = bcm43xx_read16(bcm, 0x03E2);
bcm43xx_write16(bcm, 0x03E2,
bcm43xx_read16(bcm, 0x03E2) | 0x8000);
backup[0] = bcm43xx_radio_read16(bcm, 0x007A);
backup[1] = bcm43xx_radio_read16(bcm, 0x0052);
backup[2] = bcm43xx_radio_read16(bcm, 0x0043);
backup[3] = bcm43xx_phy_read(bcm, 0x0015);
backup[4] = bcm43xx_phy_read(bcm, 0x005A);
backup[5] = bcm43xx_phy_read(bcm, 0x0059);
backup[6] = bcm43xx_phy_read(bcm, 0x0058);
backup[8] = bcm43xx_read16(bcm, 0x03E6);
backup[9] = bcm43xx_read16(bcm, BCM43xx_MMIO_CHANNEL_EXT);
if (phy->rev >= 3) {
backup[10] = bcm43xx_phy_read(bcm, 0x002E);
backup[11] = bcm43xx_phy_read(bcm, 0x002F);
backup[12] = bcm43xx_phy_read(bcm, 0x080F);
backup[13] = bcm43xx_phy_read(bcm, BCM43xx_PHY_G_LO_CONTROL);
backup[14] = bcm43xx_phy_read(bcm, 0x0801);
backup[15] = bcm43xx_phy_read(bcm, 0x0060);
backup[16] = bcm43xx_phy_read(bcm, 0x0014);
backup[17] = bcm43xx_phy_read(bcm, 0x0478);
bcm43xx_phy_write(bcm, 0x002E, 0);
bcm43xx_phy_write(bcm, BCM43xx_PHY_G_LO_CONTROL, 0);
switch (phy->rev) {
case 4: case 6: case 7:
bcm43xx_phy_write(bcm, 0x0478,
bcm43xx_phy_read(bcm, 0x0478)
| 0x0100);
bcm43xx_phy_write(bcm, 0x0801,
bcm43xx_phy_read(bcm, 0x0801)
| 0x0040);
break;
case 3: case 5:
bcm43xx_phy_write(bcm, 0x0801,
bcm43xx_phy_read(bcm, 0x0801)
& 0xFFBF);
break;
}
bcm43xx_phy_write(bcm, 0x0060,
bcm43xx_phy_read(bcm, 0x0060)
| 0x0040);
bcm43xx_phy_write(bcm, 0x0014,
bcm43xx_phy_read(bcm, 0x0014)
| 0x0200);
}
bcm43xx_radio_write16(bcm, 0x007A,
bcm43xx_radio_read16(bcm, 0x007A) | 0x0070);
bcm43xx_set_all_gains(bcm, 0, 8, 0);
bcm43xx_radio_write16(bcm, 0x007A,
bcm43xx_radio_read16(bcm, 0x007A) & 0x00F7);
if (phy->rev >= 2) {
bcm43xx_phy_write(bcm, 0x0811,
(bcm43xx_phy_read(bcm, 0x0811) & 0xFFCF) | 0x0030);
bcm43xx_phy_write(bcm, 0x0812,
(bcm43xx_phy_read(bcm, 0x0812) & 0xFFCF) | 0x0010);
}
bcm43xx_radio_write16(bcm, 0x007A,
bcm43xx_radio_read16(bcm, 0x007A) | 0x0080);
udelay(20);
nrssi0 = (s16)((bcm43xx_phy_read(bcm, 0x047F) >> 8) & 0x003F);
if (nrssi0 >= 0x0020)
nrssi0 -= 0x0040;
bcm43xx_radio_write16(bcm, 0x007A,
bcm43xx_radio_read16(bcm, 0x007A) & 0x007F);
if (phy->rev >= 2) {
bcm43xx_phy_write(bcm, 0x0003,
(bcm43xx_phy_read(bcm, 0x0003)
& 0xFF9F) | 0x0040);
}
bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL_EXT,
bcm43xx_read16(bcm, BCM43xx_MMIO_CHANNEL_EXT)
| 0x2000);
bcm43xx_radio_write16(bcm, 0x007A,
bcm43xx_radio_read16(bcm, 0x007A) | 0x000F);
bcm43xx_phy_write(bcm, 0x0015, 0xF330);
if (phy->rev >= 2) {
bcm43xx_phy_write(bcm, 0x0812,
(bcm43xx_phy_read(bcm, 0x0812) & 0xFFCF) | 0x0020);
bcm43xx_phy_write(bcm, 0x0811,
(bcm43xx_phy_read(bcm, 0x0811) & 0xFFCF) | 0x0020);
}
bcm43xx_set_all_gains(bcm, 3, 0, 1);
if (radio->revision == 8) {
bcm43xx_radio_write16(bcm, 0x0043, 0x001F);
} else {
tmp = bcm43xx_radio_read16(bcm, 0x0052) & 0xFF0F;
bcm43xx_radio_write16(bcm, 0x0052, tmp | 0x0060);
tmp = bcm43xx_radio_read16(bcm, 0x0043) & 0xFFF0;
bcm43xx_radio_write16(bcm, 0x0043, tmp | 0x0009);
}
bcm43xx_phy_write(bcm, 0x005A, 0x0480);
bcm43xx_phy_write(bcm, 0x0059, 0x0810);
bcm43xx_phy_write(bcm, 0x0058, 0x000D);
udelay(20);
nrssi1 = (s16)((bcm43xx_phy_read(bcm, 0x047F) >> 8) & 0x003F);
if (nrssi1 >= 0x0020)
nrssi1 -= 0x0040;
if (nrssi0 == nrssi1)
radio->nrssislope = 0x00010000;
else
radio->nrssislope = 0x00400000 / (nrssi0 - nrssi1);
if (nrssi0 >= -4) {
radio->nrssi[0] = nrssi1;
radio->nrssi[1] = nrssi0;
}
if (phy->rev >= 3) {
bcm43xx_phy_write(bcm, 0x002E, backup[10]);
bcm43xx_phy_write(bcm, 0x002F, backup[11]);
bcm43xx_phy_write(bcm, 0x080F, backup[12]);
bcm43xx_phy_write(bcm, BCM43xx_PHY_G_LO_CONTROL, backup[13]);
}
if (phy->rev >= 2) {
bcm43xx_phy_write(bcm, 0x0812,
bcm43xx_phy_read(bcm, 0x0812) & 0xFFCF);
bcm43xx_phy_write(bcm, 0x0811,
bcm43xx_phy_read(bcm, 0x0811) & 0xFFCF);
}
bcm43xx_radio_write16(bcm, 0x007A, backup[0]);
bcm43xx_radio_write16(bcm, 0x0052, backup[1]);
bcm43xx_radio_write16(bcm, 0x0043, backup[2]);
bcm43xx_write16(bcm, 0x03E2, backup[7]);
bcm43xx_write16(bcm, 0x03E6, backup[8]);
bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL_EXT, backup[9]);
bcm43xx_phy_write(bcm, 0x0015, backup[3]);
bcm43xx_phy_write(bcm, 0x005A, backup[4]);
bcm43xx_phy_write(bcm, 0x0059, backup[5]);
bcm43xx_phy_write(bcm, 0x0058, backup[6]);
bcm43xx_synth_pu_workaround(bcm, radio->channel);
bcm43xx_phy_write(bcm, 0x0802,
bcm43xx_phy_read(bcm, 0x0802) | (0x0001 | 0x0002));
bcm43xx_set_original_gains(bcm);
bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS,
bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS) | 0x8000);
if (phy->rev >= 3) {
bcm43xx_phy_write(bcm, 0x0801, backup[14]);
bcm43xx_phy_write(bcm, 0x0060, backup[15]);
bcm43xx_phy_write(bcm, 0x0014, backup[16]);
bcm43xx_phy_write(bcm, 0x0478, backup[17]);
}
bcm43xx_nrssi_mem_update(bcm);
bcm43xx_calc_nrssi_threshold(bcm);
break;
default:
assert(0);
}
}
void bcm43xx_calc_nrssi_threshold(struct bcm43xx_private *bcm)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
s32 threshold;
s32 a, b;
s16 tmp16;
u16 tmp_u16;
switch (phy->type) {
case BCM43xx_PHYTYPE_B: {
if (radio->version != 0x2050)
return;
if (!(bcm->sprom.boardflags & BCM43xx_BFL_RSSI))
return;
if (radio->revision >= 6) {
threshold = (radio->nrssi[1] - radio->nrssi[0]) * 32;
threshold += 20 * (radio->nrssi[0] + 1);
threshold /= 40;
} else
threshold = radio->nrssi[1] - 5;
threshold = limit_value(threshold, 0, 0x3E);
bcm43xx_phy_read(bcm, 0x0020); /* dummy read */
bcm43xx_phy_write(bcm, 0x0020, (((u16)threshold) << 8) | 0x001C);
if (radio->revision >= 6) {
bcm43xx_phy_write(bcm, 0x0087, 0x0E0D);
bcm43xx_phy_write(bcm, 0x0086, 0x0C0B);
bcm43xx_phy_write(bcm, 0x0085, 0x0A09);
bcm43xx_phy_write(bcm, 0x0084, 0x0808);
bcm43xx_phy_write(bcm, 0x0083, 0x0808);
bcm43xx_phy_write(bcm, 0x0082, 0x0604);
bcm43xx_phy_write(bcm, 0x0081, 0x0302);
bcm43xx_phy_write(bcm, 0x0080, 0x0100);
}
break;
}
case BCM43xx_PHYTYPE_G:
if (!phy->connected ||
!(bcm->sprom.boardflags & BCM43xx_BFL_RSSI)) {
tmp16 = bcm43xx_nrssi_hw_read(bcm, 0x20);
if (tmp16 >= 0x20)
tmp16 -= 0x40;
if (tmp16 < 3) {
bcm43xx_phy_write(bcm, 0x048A,
(bcm43xx_phy_read(bcm, 0x048A)
& 0xF000) | 0x09EB);
} else {
bcm43xx_phy_write(bcm, 0x048A,
(bcm43xx_phy_read(bcm, 0x048A)
& 0xF000) | 0x0AED);
}
} else {
if (radio->interfmode == BCM43xx_RADIO_INTERFMODE_NONWLAN) {
a = 0xE;
b = 0xA;
} else if (!radio->aci_wlan_automatic && radio->aci_enable) {
a = 0x13;
b = 0x12;
} else {
a = 0xE;
b = 0x11;
}
a = a * (radio->nrssi[1] - radio->nrssi[0]);
a += (radio->nrssi[0] << 6);
if (a < 32)
a += 31;
else
a += 32;
a = a >> 6;
a = limit_value(a, -31, 31);
b = b * (radio->nrssi[1] - radio->nrssi[0]);
b += (radio->nrssi[0] << 6);
if (b < 32)
b += 31;
else
b += 32;
b = b >> 6;
b = limit_value(b, -31, 31);
tmp_u16 = bcm43xx_phy_read(bcm, 0x048A) & 0xF000;
tmp_u16 |= ((u32)b & 0x0000003F);
tmp_u16 |= (((u32)a & 0x0000003F) << 6);
bcm43xx_phy_write(bcm, 0x048A, tmp_u16);
}
break;
default:
assert(0);
}
}
/* Stack implementation to save/restore values from the
* interference mitigation code.
* It is save to restore values in random order.
*/
static void _stack_save(u32 *_stackptr, size_t *stackidx,
u8 id, u16 offset, u16 value)
{
u32 *stackptr = &(_stackptr[*stackidx]);
assert((offset & 0xF000) == 0x0000);
assert((id & 0xF0) == 0x00);
*stackptr = offset;
*stackptr |= ((u32)id) << 12;
*stackptr |= ((u32)value) << 16;
(*stackidx)++;
assert(*stackidx < BCM43xx_INTERFSTACK_SIZE);
}
static u16 _stack_restore(u32 *stackptr,
u8 id, u16 offset)
{
size_t i;
assert((offset & 0xF000) == 0x0000);
assert((id & 0xF0) == 0x00);
for (i = 0; i < BCM43xx_INTERFSTACK_SIZE; i++, stackptr++) {
if ((*stackptr & 0x00000FFF) != offset)
continue;
if (((*stackptr & 0x0000F000) >> 12) != id)
continue;
return ((*stackptr & 0xFFFF0000) >> 16);
}
assert(0);
return 0;
}
#define phy_stacksave(offset) \
do { \
_stack_save(stack, &stackidx, 0x1, (offset), \
bcm43xx_phy_read(bcm, (offset))); \
} while (0)
#define phy_stackrestore(offset) \
do { \
bcm43xx_phy_write(bcm, (offset), \
_stack_restore(stack, 0x1, \
(offset))); \
} while (0)
#define radio_stacksave(offset) \
do { \
_stack_save(stack, &stackidx, 0x2, (offset), \
bcm43xx_radio_read16(bcm, (offset))); \
} while (0)
#define radio_stackrestore(offset) \
do { \
bcm43xx_radio_write16(bcm, (offset), \
_stack_restore(stack, 0x2, \
(offset))); \
} while (0)
#define ilt_stacksave(offset) \
do { \
_stack_save(stack, &stackidx, 0x3, (offset), \
bcm43xx_ilt_read(bcm, (offset))); \
} while (0)
#define ilt_stackrestore(offset) \
do { \
bcm43xx_ilt_write(bcm, (offset), \
_stack_restore(stack, 0x3, \
(offset))); \
} while (0)
static void
bcm43xx_radio_interference_mitigation_enable(struct bcm43xx_private *bcm,
int mode)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
u16 tmp, flipped;
u32 tmp32;
size_t stackidx = 0;
u32 *stack = radio->interfstack;
switch (mode) {
case BCM43xx_RADIO_INTERFMODE_NONWLAN:
if (phy->rev != 1) {
bcm43xx_phy_write(bcm, 0x042B,
bcm43xx_phy_read(bcm, 0x042B) | 0x0800);
bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS,
bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS) & ~0x4000);
break;
}
radio_stacksave(0x0078);
tmp = (bcm43xx_radio_read16(bcm, 0x0078) & 0x001E);
flipped = flip_4bit(tmp);
if (flipped < 10 && flipped >= 8)
flipped = 7;
else if (flipped >= 10)
flipped -= 3;
flipped = flip_4bit(flipped);
flipped = (flipped << 1) | 0x0020;
bcm43xx_radio_write16(bcm, 0x0078, flipped);
bcm43xx_calc_nrssi_threshold(bcm);
phy_stacksave(0x0406);
bcm43xx_phy_write(bcm, 0x0406, 0x7E28);
bcm43xx_phy_write(bcm, 0x042B,
bcm43xx_phy_read(bcm, 0x042B) | 0x0800);
bcm43xx_phy_write(bcm, BCM43xx_PHY_RADIO_BITFIELD,
bcm43xx_phy_read(bcm, BCM43xx_PHY_RADIO_BITFIELD) | 0x1000);
phy_stacksave(0x04A0);
bcm43xx_phy_write(bcm, 0x04A0,
(bcm43xx_phy_read(bcm, 0x04A0) & 0xC0C0) | 0x0008);
phy_stacksave(0x04A1);
bcm43xx_phy_write(bcm, 0x04A1,
(bcm43xx_phy_read(bcm, 0x04A1) & 0xC0C0) | 0x0605);
phy_stacksave(0x04A2);
bcm43xx_phy_write(bcm, 0x04A2,
(bcm43xx_phy_read(bcm, 0x04A2) & 0xC0C0) | 0x0204);
phy_stacksave(0x04A8);
bcm43xx_phy_write(bcm, 0x04A8,
(bcm43xx_phy_read(bcm, 0x04A8) & 0xC0C0) | 0x0803);
phy_stacksave(0x04AB);
bcm43xx_phy_write(bcm, 0x04AB,
(bcm43xx_phy_read(bcm, 0x04AB) & 0xC0C0) | 0x0605);
phy_stacksave(0x04A7);
bcm43xx_phy_write(bcm, 0x04A7, 0x0002);
phy_stacksave(0x04A3);
bcm43xx_phy_write(bcm, 0x04A3, 0x287A);
phy_stacksave(0x04A9);
bcm43xx_phy_write(bcm, 0x04A9, 0x2027);
phy_stacksave(0x0493);
bcm43xx_phy_write(bcm, 0x0493, 0x32F5);
phy_stacksave(0x04AA);
bcm43xx_phy_write(bcm, 0x04AA, 0x2027);
phy_stacksave(0x04AC);
bcm43xx_phy_write(bcm, 0x04AC, 0x32F5);
break;
case BCM43xx_RADIO_INTERFMODE_MANUALWLAN:
if (bcm43xx_phy_read(bcm, 0x0033) & 0x0800)
break;
radio->aci_enable = 1;
phy_stacksave(BCM43xx_PHY_RADIO_BITFIELD);
phy_stacksave(BCM43xx_PHY_G_CRS);
if (phy->rev < 2) {
phy_stacksave(0x0406);
} else {
phy_stacksave(0x04C0);
phy_stacksave(0x04C1);
}
phy_stacksave(0x0033);
phy_stacksave(0x04A7);
phy_stacksave(0x04A3);
phy_stacksave(0x04A9);
phy_stacksave(0x04AA);
phy_stacksave(0x04AC);
phy_stacksave(0x0493);
phy_stacksave(0x04A1);
phy_stacksave(0x04A0);
phy_stacksave(0x04A2);
phy_stacksave(0x048A);
phy_stacksave(0x04A8);
phy_stacksave(0x04AB);
if (phy->rev == 2) {
phy_stacksave(0x04AD);
phy_stacksave(0x04AE);
} else if (phy->rev >= 3) {
phy_stacksave(0x04AD);
phy_stacksave(0x0415);
phy_stacksave(0x0416);
phy_stacksave(0x0417);
ilt_stacksave(0x1A00 + 0x2);
ilt_stacksave(0x1A00 + 0x3);
}
phy_stacksave(0x042B);
phy_stacksave(0x048C);
bcm43xx_phy_write(bcm, BCM43xx_PHY_RADIO_BITFIELD,
bcm43xx_phy_read(bcm, BCM43xx_PHY_RADIO_BITFIELD)
& ~0x1000);
bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS,
(bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS)
& 0xFFFC) | 0x0002);
bcm43xx_phy_write(bcm, 0x0033, 0x0800);
bcm43xx_phy_write(bcm, 0x04A3, 0x2027);
bcm43xx_phy_write(bcm, 0x04A9, 0x1CA8);
bcm43xx_phy_write(bcm, 0x0493, 0x287A);
bcm43xx_phy_write(bcm, 0x04AA, 0x1CA8);
bcm43xx_phy_write(bcm, 0x04AC, 0x287A);
bcm43xx_phy_write(bcm, 0x04A0,
(bcm43xx_phy_read(bcm, 0x04A0)
& 0xFFC0) | 0x001A);
bcm43xx_phy_write(bcm, 0x04A7, 0x000D);
if (phy->rev < 2) {
bcm43xx_phy_write(bcm, 0x0406, 0xFF0D);
} else if (phy->rev == 2) {
bcm43xx_phy_write(bcm, 0x04C0, 0xFFFF);
bcm43xx_phy_write(bcm, 0x04C1, 0x00A9);
} else {
bcm43xx_phy_write(bcm, 0x04C0, 0x00C1);
bcm43xx_phy_write(bcm, 0x04C1, 0x0059);
}
bcm43xx_phy_write(bcm, 0x04A1,
(bcm43xx_phy_read(bcm, 0x04A1)
& 0xC0FF) | 0x1800);
bcm43xx_phy_write(bcm, 0x04A1,
(bcm43xx_phy_read(bcm, 0x04A1)
& 0xFFC0) | 0x0015);
bcm43xx_phy_write(bcm, 0x04A8,
(bcm43xx_phy_read(bcm, 0x04A8)
& 0xCFFF) | 0x1000);
bcm43xx_phy_write(bcm, 0x04A8,
(bcm43xx_phy_read(bcm, 0x04A8)
& 0xF0FF) | 0x0A00);
bcm43xx_phy_write(bcm, 0x04AB,
(bcm43xx_phy_read(bcm, 0x04AB)
& 0xCFFF) | 0x1000);
bcm43xx_phy_write(bcm, 0x04AB,
(bcm43xx_phy_read(bcm, 0x04AB)
& 0xF0FF) | 0x0800);
bcm43xx_phy_write(bcm, 0x04AB,
(bcm43xx_phy_read(bcm, 0x04AB)
& 0xFFCF) | 0x0010);
bcm43xx_phy_write(bcm, 0x04AB,
(bcm43xx_phy_read(bcm, 0x04AB)
& 0xFFF0) | 0x0005);
bcm43xx_phy_write(bcm, 0x04A8,
(bcm43xx_phy_read(bcm, 0x04A8)
& 0xFFCF) | 0x0010);
bcm43xx_phy_write(bcm, 0x04A8,
(bcm43xx_phy_read(bcm, 0x04A8)
& 0xFFF0) | 0x0006);
bcm43xx_phy_write(bcm, 0x04A2,
(bcm43xx_phy_read(bcm, 0x04A2)
& 0xF0FF) | 0x0800);
bcm43xx_phy_write(bcm, 0x04A0,
(bcm43xx_phy_read(bcm, 0x04A0)
& 0xF0FF) | 0x0500);
bcm43xx_phy_write(bcm, 0x04A2,
(bcm43xx_phy_read(bcm, 0x04A2)
& 0xFFF0) | 0x000B);
if (phy->rev >= 3) {
bcm43xx_phy_write(bcm, 0x048A,
bcm43xx_phy_read(bcm, 0x048A)
& ~0x8000);
bcm43xx_phy_write(bcm, 0x0415,
(bcm43xx_phy_read(bcm, 0x0415)
& 0x8000) | 0x36D8);
bcm43xx_phy_write(bcm, 0x0416,
(bcm43xx_phy_read(bcm, 0x0416)
& 0x8000) | 0x36D8);
bcm43xx_phy_write(bcm, 0x0417,
(bcm43xx_phy_read(bcm, 0x0417)
& 0xFE00) | 0x016D);
} else {
bcm43xx_phy_write(bcm, 0x048A,
bcm43xx_phy_read(bcm, 0x048A)
| 0x1000);
bcm43xx_phy_write(bcm, 0x048A,
(bcm43xx_phy_read(bcm, 0x048A)
& 0x9FFF) | 0x2000);
tmp32 = bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED,
BCM43xx_UCODEFLAGS_OFFSET);
if (!(tmp32 & 0x800)) {
tmp32 |= 0x800;
bcm43xx_shm_write32(bcm, BCM43xx_SHM_SHARED,
BCM43xx_UCODEFLAGS_OFFSET,
tmp32);
}
}
if (phy->rev >= 2) {
bcm43xx_phy_write(bcm, 0x042B,
bcm43xx_phy_read(bcm, 0x042B)
| 0x0800);
}
bcm43xx_phy_write(bcm, 0x048C,
(bcm43xx_phy_read(bcm, 0x048C)
& 0xF0FF) | 0x0200);
if (phy->rev == 2) {
bcm43xx_phy_write(bcm, 0x04AE,
(bcm43xx_phy_read(bcm, 0x04AE)
& 0xFF00) | 0x007F);
bcm43xx_phy_write(bcm, 0x04AD,
(bcm43xx_phy_read(bcm, 0x04AD)
& 0x00FF) | 0x1300);
} else if (phy->rev >= 6) {
bcm43xx_ilt_write(bcm, 0x1A00 + 0x3, 0x007F);
bcm43xx_ilt_write(bcm, 0x1A00 + 0x2, 0x007F);
bcm43xx_phy_write(bcm, 0x04AD,
bcm43xx_phy_read(bcm, 0x04AD)
& 0x00FF);
}
bcm43xx_calc_nrssi_slope(bcm);
break;
default:
assert(0);
}
}
static void
bcm43xx_radio_interference_mitigation_disable(struct bcm43xx_private *bcm,
int mode)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
u32 tmp32;
u32 *stack = radio->interfstack;
switch (mode) {
case BCM43xx_RADIO_INTERFMODE_NONWLAN:
if (phy->rev != 1) {
bcm43xx_phy_write(bcm, 0x042B,
bcm43xx_phy_read(bcm, 0x042B) & ~0x0800);
bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS,
bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS) | 0x4000);
break;
}
phy_stackrestore(0x0078);
bcm43xx_calc_nrssi_threshold(bcm);
phy_stackrestore(0x0406);
bcm43xx_phy_write(bcm, 0x042B,
bcm43xx_phy_read(bcm, 0x042B) & ~0x0800);
if (!bcm->bad_frames_preempt) {
bcm43xx_phy_write(bcm, BCM43xx_PHY_RADIO_BITFIELD,
bcm43xx_phy_read(bcm, BCM43xx_PHY_RADIO_BITFIELD)
& ~(1 << 11));
}
bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS,
bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS) | 0x4000);
phy_stackrestore(0x04A0);
phy_stackrestore(0x04A1);
phy_stackrestore(0x04A2);
phy_stackrestore(0x04A8);
phy_stackrestore(0x04AB);
phy_stackrestore(0x04A7);
phy_stackrestore(0x04A3);
phy_stackrestore(0x04A9);
phy_stackrestore(0x0493);
phy_stackrestore(0x04AA);
phy_stackrestore(0x04AC);
break;
case BCM43xx_RADIO_INTERFMODE_MANUALWLAN:
if (!(bcm43xx_phy_read(bcm, 0x0033) & 0x0800))
break;
radio->aci_enable = 0;
phy_stackrestore(BCM43xx_PHY_RADIO_BITFIELD);
phy_stackrestore(BCM43xx_PHY_G_CRS);
phy_stackrestore(0x0033);
phy_stackrestore(0x04A3);
phy_stackrestore(0x04A9);
phy_stackrestore(0x0493);
phy_stackrestore(0x04AA);
phy_stackrestore(0x04AC);
phy_stackrestore(0x04A0);
phy_stackrestore(0x04A7);
if (phy->rev >= 2) {
phy_stackrestore(0x04C0);
phy_stackrestore(0x04C1);
} else
phy_stackrestore(0x0406);
phy_stackrestore(0x04A1);
phy_stackrestore(0x04AB);
phy_stackrestore(0x04A8);
if (phy->rev == 2) {
phy_stackrestore(0x04AD);
phy_stackrestore(0x04AE);
} else if (phy->rev >= 3) {
phy_stackrestore(0x04AD);
phy_stackrestore(0x0415);
phy_stackrestore(0x0416);
phy_stackrestore(0x0417);
ilt_stackrestore(0x1A00 + 0x2);
ilt_stackrestore(0x1A00 + 0x3);
}
phy_stackrestore(0x04A2);
phy_stackrestore(0x04A8);
phy_stackrestore(0x042B);
phy_stackrestore(0x048C);
tmp32 = bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED,
BCM43xx_UCODEFLAGS_OFFSET);
if (tmp32 & 0x800) {
tmp32 &= ~0x800;
bcm43xx_shm_write32(bcm, BCM43xx_SHM_SHARED,
BCM43xx_UCODEFLAGS_OFFSET,
tmp32);
}
bcm43xx_calc_nrssi_slope(bcm);
break;
default:
assert(0);
}
}
#undef phy_stacksave
#undef phy_stackrestore
#undef radio_stacksave
#undef radio_stackrestore
#undef ilt_stacksave
#undef ilt_stackrestore
int bcm43xx_radio_set_interference_mitigation(struct bcm43xx_private *bcm,
int mode)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
int currentmode;
if ((phy->type != BCM43xx_PHYTYPE_G) ||
(phy->rev == 0) ||
(!phy->connected))
return -ENODEV;
radio->aci_wlan_automatic = 0;
switch (mode) {
case BCM43xx_RADIO_INTERFMODE_AUTOWLAN:
radio->aci_wlan_automatic = 1;
if (radio->aci_enable)
mode = BCM43xx_RADIO_INTERFMODE_MANUALWLAN;
else
mode = BCM43xx_RADIO_INTERFMODE_NONE;
break;
case BCM43xx_RADIO_INTERFMODE_NONE:
case BCM43xx_RADIO_INTERFMODE_NONWLAN:
case BCM43xx_RADIO_INTERFMODE_MANUALWLAN:
break;
default:
return -EINVAL;
}
currentmode = radio->interfmode;
if (currentmode == mode)
return 0;
if (currentmode != BCM43xx_RADIO_INTERFMODE_NONE)
bcm43xx_radio_interference_mitigation_disable(bcm, currentmode);
if (mode == BCM43xx_RADIO_INTERFMODE_NONE) {
radio->aci_enable = 0;
radio->aci_hw_rssi = 0;
} else
bcm43xx_radio_interference_mitigation_enable(bcm, mode);
radio->interfmode = mode;
return 0;
}
u16 bcm43xx_radio_calibrationvalue(struct bcm43xx_private *bcm)
{
u16 reg, index, ret;
reg = bcm43xx_radio_read16(bcm, 0x0060);
index = (reg & 0x001E) >> 1;
ret = rcc_table[index] << 1;
ret |= (reg & 0x0001);
ret |= 0x0020;
return ret;
}
u16 bcm43xx_radio_init2050(struct bcm43xx_private *bcm)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
u16 backup[19] = { 0 };
u16 ret;
u16 i, j;
u32 tmp1 = 0, tmp2 = 0;
backup[0] = bcm43xx_radio_read16(bcm, 0x0043);
backup[14] = bcm43xx_radio_read16(bcm, 0x0051);
backup[15] = bcm43xx_radio_read16(bcm, 0x0052);
backup[1] = bcm43xx_phy_read(bcm, 0x0015);
backup[16] = bcm43xx_phy_read(bcm, 0x005A);
backup[17] = bcm43xx_phy_read(bcm, 0x0059);
backup[18] = bcm43xx_phy_read(bcm, 0x0058);
if (phy->type == BCM43xx_PHYTYPE_B) {
backup[2] = bcm43xx_phy_read(bcm, 0x0030);
backup[3] = bcm43xx_read16(bcm, 0x03EC);
bcm43xx_phy_write(bcm, 0x0030, 0x00FF);
bcm43xx_write16(bcm, 0x03EC, 0x3F3F);
} else {
if (phy->connected) {
backup[4] = bcm43xx_phy_read(bcm, 0x0811);
backup[5] = bcm43xx_phy_read(bcm, 0x0812);
backup[6] = bcm43xx_phy_read(bcm, 0x0814);
backup[7] = bcm43xx_phy_read(bcm, 0x0815);
backup[8] = bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS);
backup[9] = bcm43xx_phy_read(bcm, 0x0802);
bcm43xx_phy_write(bcm, 0x0814,
(bcm43xx_phy_read(bcm, 0x0814) | 0x0003));
bcm43xx_phy_write(bcm, 0x0815,
(bcm43xx_phy_read(bcm, 0x0815) & 0xFFFC));
bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS,
(bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS) & 0x7FFF));
bcm43xx_phy_write(bcm, 0x0802,
(bcm43xx_phy_read(bcm, 0x0802) & 0xFFFC));
bcm43xx_phy_write(bcm, 0x0811, 0x01B3);
bcm43xx_phy_write(bcm, 0x0812, 0x0FB2);
}
bcm43xx_write16(bcm, BCM43xx_MMIO_PHY_RADIO,
(bcm43xx_read16(bcm, BCM43xx_MMIO_PHY_RADIO) | 0x8000));
}
backup[10] = bcm43xx_phy_read(bcm, 0x0035);
bcm43xx_phy_write(bcm, 0x0035,
(bcm43xx_phy_read(bcm, 0x0035) & 0xFF7F));
backup[11] = bcm43xx_read16(bcm, 0x03E6);
backup[12] = bcm43xx_read16(bcm, BCM43xx_MMIO_CHANNEL_EXT);
// Initialization
if (phy->version == 0) {
bcm43xx_write16(bcm, 0x03E6, 0x0122);
} else {
if (phy->version >= 2)
bcm43xx_write16(bcm, 0x03E6, 0x0040);
bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL_EXT,
(bcm43xx_read16(bcm, BCM43xx_MMIO_CHANNEL_EXT) | 0x2000));
}
ret = bcm43xx_radio_calibrationvalue(bcm);
if (phy->type == BCM43xx_PHYTYPE_B)
bcm43xx_radio_write16(bcm, 0x0078, 0x0003);
bcm43xx_phy_write(bcm, 0x0015, 0xBFAF);
bcm43xx_phy_write(bcm, 0x002B, 0x1403);
if (phy->connected)
bcm43xx_phy_write(bcm, 0x0812, 0x00B2);
bcm43xx_phy_write(bcm, 0x0015, 0xBFA0);
bcm43xx_radio_write16(bcm, 0x0051,
(bcm43xx_radio_read16(bcm, 0x0051) | 0x0004));
bcm43xx_radio_write16(bcm, 0x0052, 0x0000);
bcm43xx_radio_write16(bcm, 0x0043,
bcm43xx_radio_read16(bcm, 0x0043) | 0x0009);
bcm43xx_phy_write(bcm, 0x0058, 0x0000);
for (i = 0; i < 16; i++) {
bcm43xx_phy_write(bcm, 0x005A, 0x0480);
bcm43xx_phy_write(bcm, 0x0059, 0xC810);
bcm43xx_phy_write(bcm, 0x0058, 0x000D);
if (phy->connected)
bcm43xx_phy_write(bcm, 0x0812, 0x30B2);
bcm43xx_phy_write(bcm, 0x0015, 0xAFB0);
udelay(10);
if (phy->connected)
bcm43xx_phy_write(bcm, 0x0812, 0x30B2);
bcm43xx_phy_write(bcm, 0x0015, 0xEFB0);
udelay(10);
if (phy->connected)
bcm43xx_phy_write(bcm, 0x0812, 0x30B2);
bcm43xx_phy_write(bcm, 0x0015, 0xFFF0);
udelay(10);
tmp1 += bcm43xx_phy_read(bcm, 0x002D);
bcm43xx_phy_write(bcm, 0x0058, 0x0000);
if (phy->connected)
bcm43xx_phy_write(bcm, 0x0812, 0x30B2);
bcm43xx_phy_write(bcm, 0x0015, 0xAFB0);
}
tmp1++;
tmp1 >>= 9;
udelay(10);
bcm43xx_phy_write(bcm, 0x0058, 0x0000);
for (i = 0; i < 16; i++) {
bcm43xx_radio_write16(bcm, 0x0078, (flip_4bit(i) << 1) | 0x0020);
backup[13] = bcm43xx_radio_read16(bcm, 0x0078);
udelay(10);
for (j = 0; j < 16; j++) {
bcm43xx_phy_write(bcm, 0x005A, 0x0D80);
bcm43xx_phy_write(bcm, 0x0059, 0xC810);
bcm43xx_phy_write(bcm, 0x0058, 0x000D);
if (phy->connected)
bcm43xx_phy_write(bcm, 0x0812, 0x30B2);
bcm43xx_phy_write(bcm, 0x0015, 0xAFB0);
udelay(10);
if (phy->connected)
bcm43xx_phy_write(bcm, 0x0812, 0x30B2);
bcm43xx_phy_write(bcm, 0x0015, 0xEFB0);
udelay(10);
if (phy->connected)
bcm43xx_phy_write(bcm, 0x0812, 0x30B3); /* 0x30B3 is not a typo */
bcm43xx_phy_write(bcm, 0x0015, 0xFFF0);
udelay(10);
tmp2 += bcm43xx_phy_read(bcm, 0x002D);
bcm43xx_phy_write(bcm, 0x0058, 0x0000);
if (phy->connected)
bcm43xx_phy_write(bcm, 0x0812, 0x30B2);
bcm43xx_phy_write(bcm, 0x0015, 0xAFB0);
}
tmp2++;
tmp2 >>= 8;
if (tmp1 < tmp2)
break;
}
/* Restore the registers */
bcm43xx_phy_write(bcm, 0x0015, backup[1]);
bcm43xx_radio_write16(bcm, 0x0051, backup[14]);
bcm43xx_radio_write16(bcm, 0x0052, backup[15]);
bcm43xx_radio_write16(bcm, 0x0043, backup[0]);
bcm43xx_phy_write(bcm, 0x005A, backup[16]);
bcm43xx_phy_write(bcm, 0x0059, backup[17]);
bcm43xx_phy_write(bcm, 0x0058, backup[18]);
bcm43xx_write16(bcm, 0x03E6, backup[11]);
if (phy->version != 0)
bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL_EXT, backup[12]);
bcm43xx_phy_write(bcm, 0x0035, backup[10]);
bcm43xx_radio_selectchannel(bcm, radio->channel, 1);
if (phy->type == BCM43xx_PHYTYPE_B) {
bcm43xx_phy_write(bcm, 0x0030, backup[2]);
bcm43xx_write16(bcm, 0x03EC, backup[3]);
} else {
bcm43xx_write16(bcm, BCM43xx_MMIO_PHY_RADIO,
(bcm43xx_read16(bcm, BCM43xx_MMIO_PHY_RADIO) & 0x7FFF));
if (phy->connected) {
bcm43xx_phy_write(bcm, 0x0811, backup[4]);
bcm43xx_phy_write(bcm, 0x0812, backup[5]);
bcm43xx_phy_write(bcm, 0x0814, backup[6]);
bcm43xx_phy_write(bcm, 0x0815, backup[7]);
bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS, backup[8]);
bcm43xx_phy_write(bcm, 0x0802, backup[9]);
}
}
if (i >= 15)
ret = backup[13];
return ret;
}
void bcm43xx_radio_init2060(struct bcm43xx_private *bcm)
{
int err;
bcm43xx_radio_write16(bcm, 0x0004, 0x00C0);
bcm43xx_radio_write16(bcm, 0x0005, 0x0008);
bcm43xx_radio_write16(bcm, 0x0009, 0x0040);
bcm43xx_radio_write16(bcm, 0x0005, 0x00AA);
bcm43xx_radio_write16(bcm, 0x0032, 0x008F);
bcm43xx_radio_write16(bcm, 0x0006, 0x008F);
bcm43xx_radio_write16(bcm, 0x0034, 0x008F);
bcm43xx_radio_write16(bcm, 0x002C, 0x0007);
bcm43xx_radio_write16(bcm, 0x0082, 0x0080);
bcm43xx_radio_write16(bcm, 0x0080, 0x0000);
bcm43xx_radio_write16(bcm, 0x003F, 0x00DA);
bcm43xx_radio_write16(bcm, 0x0005, bcm43xx_radio_read16(bcm, 0x0005) & ~0x0008);
bcm43xx_radio_write16(bcm, 0x0081, bcm43xx_radio_read16(bcm, 0x0081) & ~0x0010);
bcm43xx_radio_write16(bcm, 0x0081, bcm43xx_radio_read16(bcm, 0x0081) & ~0x0020);
bcm43xx_radio_write16(bcm, 0x0081, bcm43xx_radio_read16(bcm, 0x0081) & ~0x0020);
udelay(400);
bcm43xx_radio_write16(bcm, 0x0081, (bcm43xx_radio_read16(bcm, 0x0081) & ~0x0020) | 0x0010);
udelay(400);
bcm43xx_radio_write16(bcm, 0x0005, (bcm43xx_radio_read16(bcm, 0x0005) & ~0x0008) | 0x0008);
bcm43xx_radio_write16(bcm, 0x0085, bcm43xx_radio_read16(bcm, 0x0085) & ~0x0010);
bcm43xx_radio_write16(bcm, 0x0005, bcm43xx_radio_read16(bcm, 0x0005) & ~0x0008);
bcm43xx_radio_write16(bcm, 0x0081, bcm43xx_radio_read16(bcm, 0x0081) & ~0x0040);
bcm43xx_radio_write16(bcm, 0x0081, (bcm43xx_radio_read16(bcm, 0x0081) & ~0x0040) | 0x0040);
bcm43xx_radio_write16(bcm, 0x0005, (bcm43xx_radio_read16(bcm, 0x0081) & ~0x0008) | 0x0008);
bcm43xx_phy_write(bcm, 0x0063, 0xDDC6);
bcm43xx_phy_write(bcm, 0x0069, 0x07BE);
bcm43xx_phy_write(bcm, 0x006A, 0x0000);
err = bcm43xx_radio_selectchannel(bcm, BCM43xx_RADIO_DEFAULT_CHANNEL_A, 0);
assert(err == 0);
udelay(1000);
}
static inline
u16 freq_r3A_value(u16 frequency)
{
u16 value;
if (frequency < 5091)
value = 0x0040;
else if (frequency < 5321)
value = 0x0000;
else if (frequency < 5806)
value = 0x0080;
else
value = 0x0040;
return value;
}
void bcm43xx_radio_set_tx_iq(struct bcm43xx_private *bcm)
{
static const u8 data_high[5] = { 0x00, 0x40, 0x80, 0x90, 0xD0 };
static const u8 data_low[5] = { 0x00, 0x01, 0x05, 0x06, 0x0A };
u16 tmp = bcm43xx_radio_read16(bcm, 0x001E);
int i, j;
for (i = 0; i < 5; i++) {
for (j = 0; j < 5; j++) {
if (tmp == (data_high[i] << 4 | data_low[j])) {
bcm43xx_phy_write(bcm, 0x0069, (i - j) << 8 | 0x00C0);
return;
}
}
}
}
int bcm43xx_radio_selectchannel(struct bcm43xx_private *bcm,
u8 channel,
int synthetic_pu_workaround)
{
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
u16 r8, tmp;
u16 freq;
if (!ieee80211_is_valid_channel(bcm->ieee, channel))
return -EINVAL;
if ((radio->manufact == 0x17F) &&
(radio->version == 0x2060) &&
(radio->revision == 1)) {
freq = channel2freq_a(channel);
r8 = bcm43xx_radio_read16(bcm, 0x0008);
bcm43xx_write16(bcm, 0x03F0, freq);
bcm43xx_radio_write16(bcm, 0x0008, r8);
TODO();//TODO: write max channel TX power? to Radio 0x2D
tmp = bcm43xx_radio_read16(bcm, 0x002E);
tmp &= 0x0080;
TODO();//TODO: OR tmp with the Power out estimation for this channel?
bcm43xx_radio_write16(bcm, 0x002E, tmp);
if (freq >= 4920 && freq <= 5500) {
/*
* r8 = (((freq * 15 * 0xE1FC780F) >> 32) / 29) & 0x0F;
* = (freq * 0.025862069
*/
r8 = 3 * freq / 116; /* is equal to r8 = freq * 0.025862 */
}
bcm43xx_radio_write16(bcm, 0x0007, (r8 << 4) | r8);
bcm43xx_radio_write16(bcm, 0x0020, (r8 << 4) | r8);
bcm43xx_radio_write16(bcm, 0x0021, (r8 << 4) | r8);
bcm43xx_radio_write16(bcm, 0x0022,
(bcm43xx_radio_read16(bcm, 0x0022)
& 0x000F) | (r8 << 4));
bcm43xx_radio_write16(bcm, 0x002A, (r8 << 4));
bcm43xx_radio_write16(bcm, 0x002B, (r8 << 4));
bcm43xx_radio_write16(bcm, 0x0008,
(bcm43xx_radio_read16(bcm, 0x0008)
& 0x00F0) | (r8 << 4));
bcm43xx_radio_write16(bcm, 0x0029,
(bcm43xx_radio_read16(bcm, 0x0029)
& 0xFF0F) | 0x00B0);
bcm43xx_radio_write16(bcm, 0x0035, 0x00AA);
bcm43xx_radio_write16(bcm, 0x0036, 0x0085);
bcm43xx_radio_write16(bcm, 0x003A,
(bcm43xx_radio_read16(bcm, 0x003A)
& 0xFF20) | freq_r3A_value(freq));
bcm43xx_radio_write16(bcm, 0x003D,
bcm43xx_radio_read16(bcm, 0x003D) & 0x00FF);
bcm43xx_radio_write16(bcm, 0x0081,
(bcm43xx_radio_read16(bcm, 0x0081)
& 0xFF7F) | 0x0080);
bcm43xx_radio_write16(bcm, 0x0035,
bcm43xx_radio_read16(bcm, 0x0035) & 0xFFEF);
bcm43xx_radio_write16(bcm, 0x0035,
(bcm43xx_radio_read16(bcm, 0x0035)
& 0xFFEF) | 0x0010);
bcm43xx_radio_set_tx_iq(bcm);
TODO(); //TODO: TSSI2dbm workaround
bcm43xx_phy_xmitpower(bcm);//FIXME correct?
} else {
if (synthetic_pu_workaround)
bcm43xx_synth_pu_workaround(bcm, channel);
bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL,
channel2freq_bg(channel));
if (channel == 14) {
if (bcm->sprom.locale == BCM43xx_LOCALE_JAPAN) {
bcm43xx_shm_write32(bcm, BCM43xx_SHM_SHARED,
BCM43xx_UCODEFLAGS_OFFSET,
bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED,
BCM43xx_UCODEFLAGS_OFFSET)
& ~(1 << 7));
} else {
bcm43xx_shm_write32(bcm, BCM43xx_SHM_SHARED,
BCM43xx_UCODEFLAGS_OFFSET,
bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED,
BCM43xx_UCODEFLAGS_OFFSET)
| (1 << 7));
}
bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL_EXT,
bcm43xx_read16(bcm, BCM43xx_MMIO_CHANNEL_EXT)
| (1 << 11));
} else {
bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL_EXT,
bcm43xx_read16(bcm, BCM43xx_MMIO_CHANNEL_EXT)
& 0xF7BF);
}
}
radio->channel = channel;
//XXX: Using the longer of 2 timeouts (8000 vs 2000 usecs). Specs states
// that 2000 usecs might suffice.
udelay(8000);
return 0;
}
void bcm43xx_radio_set_txantenna(struct bcm43xx_private *bcm, u32 val)
{
u16 tmp;
val <<= 8;
tmp = bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED, 0x0022) & 0xFCFF;
bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0022, tmp | val);
tmp = bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED, 0x03A8) & 0xFCFF;
bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x03A8, tmp | val);
tmp = bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED, 0x0054) & 0xFCFF;
bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0054, tmp | val);
}
/* http://bcm-specs.sipsolutions.net/TX_Gain_Base_Band */
static u16 bcm43xx_get_txgain_base_band(u16 txpower)
{
u16 ret;
assert(txpower <= 63);
if (txpower >= 54)
ret = 2;
else if (txpower >= 49)
ret = 4;
else if (txpower >= 44)
ret = 5;
else
ret = 6;
return ret;
}
/* http://bcm-specs.sipsolutions.net/TX_Gain_Radio_Frequency_Power_Amplifier */
static u16 bcm43xx_get_txgain_freq_power_amp(u16 txpower)
{
u16 ret;
assert(txpower <= 63);
if (txpower >= 32)
ret = 0;
else if (txpower >= 25)
ret = 1;
else if (txpower >= 20)
ret = 2;
else if (txpower >= 12)
ret = 3;
else
ret = 4;
return ret;
}
/* http://bcm-specs.sipsolutions.net/TX_Gain_Digital_Analog_Converter */
static u16 bcm43xx_get_txgain_dac(u16 txpower)
{
u16 ret;
assert(txpower <= 63);
if (txpower >= 54)
ret = txpower - 53;
else if (txpower >= 49)
ret = txpower - 42;
else if (txpower >= 44)
ret = txpower - 37;
else if (txpower >= 32)
ret = txpower - 32;
else if (txpower >= 25)
ret = txpower - 20;
else if (txpower >= 20)
ret = txpower - 13;
else if (txpower >= 12)
ret = txpower - 8;
else
ret = txpower;
return ret;
}
void bcm43xx_radio_set_txpower_a(struct bcm43xx_private *bcm, u16 txpower)
{
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
u16 pamp, base, dac, ilt;
txpower = limit_value(txpower, 0, 63);
pamp = bcm43xx_get_txgain_freq_power_amp(txpower);
pamp <<= 5;
pamp &= 0x00E0;
bcm43xx_phy_write(bcm, 0x0019, pamp);
base = bcm43xx_get_txgain_base_band(txpower);
base &= 0x000F;
bcm43xx_phy_write(bcm, 0x0017, base | 0x0020);
ilt = bcm43xx_ilt_read(bcm, 0x3001);
ilt &= 0x0007;
dac = bcm43xx_get_txgain_dac(txpower);
dac <<= 3;
dac |= ilt;
bcm43xx_ilt_write(bcm, 0x3001, dac);
radio->txpwr_offset = txpower;
TODO();
//TODO: FuncPlaceholder (Adjust BB loft cancel)
}
void bcm43xx_radio_set_txpower_bg(struct bcm43xx_private *bcm,
u16 baseband_attenuation, u16 radio_attenuation,
u16 txpower)
{
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
if (baseband_attenuation == 0xFFFF)
baseband_attenuation = radio->baseband_atten;
if (radio_attenuation == 0xFFFF)
radio_attenuation = radio->radio_atten;
if (txpower == 0xFFFF)
txpower = radio->txctl1;
radio->baseband_atten = baseband_attenuation;
radio->radio_atten = radio_attenuation;
radio->txctl1 = txpower;
assert(/*baseband_attenuation >= 0 &&*/ baseband_attenuation <= 11);
if (radio->revision < 6)
assert(/*radio_attenuation >= 0 &&*/ radio_attenuation <= 9);
else
assert(/* radio_attenuation >= 0 &&*/ radio_attenuation <= 31);
assert(/*txpower >= 0 &&*/ txpower <= 7);
bcm43xx_phy_set_baseband_attenuation(bcm, baseband_attenuation);
bcm43xx_radio_write16(bcm, 0x0043, radio_attenuation);
bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0064, radio_attenuation);
if (radio->version == 0x2050) {
bcm43xx_radio_write16(bcm, 0x0052,
(bcm43xx_radio_read16(bcm, 0x0052) & ~0x0070)
| ((txpower << 4) & 0x0070));
}
//FIXME: The spec is very weird and unclear here.
if (phy->type == BCM43xx_PHYTYPE_G)
bcm43xx_phy_lo_adjust(bcm, 0);
}
u16 bcm43xx_default_baseband_attenuation(struct bcm43xx_private *bcm)
{
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
if (radio->version == 0x2050 && radio->revision < 6)
return 0;
return 2;
}
u16 bcm43xx_default_radio_attenuation(struct bcm43xx_private *bcm)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
u16 att = 0xFFFF;
if (phy->type == BCM43xx_PHYTYPE_A)
return 0x60;
switch (radio->version) {
case 0x2053:
switch (radio->revision) {
case 1:
att = 6;
break;
}
break;
case 0x2050:
switch (radio->revision) {
case 0:
att = 5;
break;
case 1:
if (phy->type == BCM43xx_PHYTYPE_G) {
if (bcm->board_vendor == PCI_VENDOR_ID_BROADCOM &&
bcm->board_type == 0x421 &&
bcm->board_revision >= 30)
att = 3;
else if (bcm->board_vendor == PCI_VENDOR_ID_BROADCOM &&
bcm->board_type == 0x416)
att = 3;
else
att = 1;
} else {
if (bcm->board_vendor == PCI_VENDOR_ID_BROADCOM &&
bcm->board_type == 0x421 &&
bcm->board_revision >= 30)
att = 7;
else
att = 6;
}
break;
case 2:
if (phy->type == BCM43xx_PHYTYPE_G) {
if (bcm->board_vendor == PCI_VENDOR_ID_BROADCOM &&
bcm->board_type == 0x421 &&
bcm->board_revision >= 30)
att = 3;
else if (bcm->board_vendor == PCI_VENDOR_ID_BROADCOM &&
bcm->board_type == 0x416)
att = 5;
else if (bcm->chip_id == 0x4320)
att = 4;
else
att = 3;
} else
att = 6;
break;
case 3:
att = 5;
break;
case 4:
case 5:
att = 1;
break;
case 6:
case 7:
att = 5;
break;
case 8:
att = 0x1A;
break;
case 9:
default:
att = 5;
}
}
if (bcm->board_vendor == PCI_VENDOR_ID_BROADCOM &&
bcm->board_type == 0x421) {
if (bcm->board_revision < 0x43)
att = 2;
else if (bcm->board_revision < 0x51)
att = 3;
}
if (att == 0xFFFF)
att = 5;
return att;
}
u16 bcm43xx_default_txctl1(struct bcm43xx_private *bcm)
{
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
if (radio->version != 0x2050)
return 0;
if (radio->revision == 1)
return 3;
if (radio->revision < 6)
return 2;
if (radio->revision == 8)
return 1;
return 0;
}
void bcm43xx_radio_turn_on(struct bcm43xx_private *bcm)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
int err;
if (radio->enabled)
return;
switch (phy->type) {
case BCM43xx_PHYTYPE_A:
bcm43xx_radio_write16(bcm, 0x0004, 0x00C0);
bcm43xx_radio_write16(bcm, 0x0005, 0x0008);
bcm43xx_phy_write(bcm, 0x0010, bcm43xx_phy_read(bcm, 0x0010) & 0xFFF7);
bcm43xx_phy_write(bcm, 0x0011, bcm43xx_phy_read(bcm, 0x0011) & 0xFFF7);
bcm43xx_radio_init2060(bcm);
break;
case BCM43xx_PHYTYPE_B:
case BCM43xx_PHYTYPE_G:
bcm43xx_phy_write(bcm, 0x0015, 0x8000);
bcm43xx_phy_write(bcm, 0x0015, 0xCC00);
bcm43xx_phy_write(bcm, 0x0015, (phy->connected ? 0x00C0 : 0x0000));
err = bcm43xx_radio_selectchannel(bcm, BCM43xx_RADIO_DEFAULT_CHANNEL_BG, 1);
assert(err == 0);
break;
default:
assert(0);
}
radio->enabled = 1;
dprintk(KERN_INFO PFX "Radio turned on\n");
}
void bcm43xx_radio_turn_off(struct bcm43xx_private *bcm)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
if (phy->type == BCM43xx_PHYTYPE_A) {
bcm43xx_radio_write16(bcm, 0x0004, 0x00FF);
bcm43xx_radio_write16(bcm, 0x0005, 0x00FB);
bcm43xx_phy_write(bcm, 0x0010, bcm43xx_phy_read(bcm, 0x0010) | 0x0008);
bcm43xx_phy_write(bcm, 0x0011, bcm43xx_phy_read(bcm, 0x0011) | 0x0008);
}
if (phy->type == BCM43xx_PHYTYPE_G && bcm->current_core->rev >= 5) {
bcm43xx_phy_write(bcm, 0x0811, bcm43xx_phy_read(bcm, 0x0811) | 0x008C);
bcm43xx_phy_write(bcm, 0x0812, bcm43xx_phy_read(bcm, 0x0812) & 0xFF73);
} else
bcm43xx_phy_write(bcm, 0x0015, 0xAA00);
radio->enabled = 0;
dprintk(KERN_INFO PFX "Radio turned off\n");
}
void bcm43xx_radio_clear_tssi(struct bcm43xx_private *bcm)
{
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
switch (phy->type) {
case BCM43xx_PHYTYPE_A:
bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0068, 0x7F7F);
bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x006a, 0x7F7F);
break;
case BCM43xx_PHYTYPE_B:
case BCM43xx_PHYTYPE_G:
bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0058, 0x7F7F);
bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x005a, 0x7F7F);
bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0070, 0x7F7F);
bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0072, 0x7F7F);
break;
}
}
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