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linux/drivers/net/wireless/b43legacy/phy.c

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/*
Broadcom B43legacy wireless driver
Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
Stefano Brivio <stefano.brivio@polimi.it>
Michael Buesch <mbuesch@freenet.de>
Danny van Dyk <kugelfang@gentoo.org>
Andreas Jaggi <andreas.jaggi@waterwave.ch>
Copyright (c) 2007 Larry Finger <Larry.Finger@lwfinger.net>
Some parts of the code in this file are derived from the ipw2200
driver Copyright(c) 2003 - 2004 Intel Corporation.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/types.h>
#include "b43legacy.h"
#include "phy.h"
#include "main.h"
#include "radio.h"
#include "ilt.h"
static const s8 b43legacy_tssi2dbm_b_table[] = {
0x4D, 0x4C, 0x4B, 0x4A,
0x4A, 0x49, 0x48, 0x47,
0x47, 0x46, 0x45, 0x45,
0x44, 0x43, 0x42, 0x42,
0x41, 0x40, 0x3F, 0x3E,
0x3D, 0x3C, 0x3B, 0x3A,
0x39, 0x38, 0x37, 0x36,
0x35, 0x34, 0x32, 0x31,
0x30, 0x2F, 0x2D, 0x2C,
0x2B, 0x29, 0x28, 0x26,
0x25, 0x23, 0x21, 0x1F,
0x1D, 0x1A, 0x17, 0x14,
0x10, 0x0C, 0x06, 0x00,
-7, -7, -7, -7,
-7, -7, -7, -7,
-7, -7, -7, -7,
};
static const s8 b43legacy_tssi2dbm_g_table[] = {
77, 77, 77, 76,
76, 76, 75, 75,
74, 74, 73, 73,
73, 72, 72, 71,
71, 70, 70, 69,
68, 68, 67, 67,
66, 65, 65, 64,
63, 63, 62, 61,
60, 59, 58, 57,
56, 55, 54, 53,
52, 50, 49, 47,
45, 43, 40, 37,
33, 28, 22, 14,
5, -7, -20, -20,
-20, -20, -20, -20,
-20, -20, -20, -20,
};
static void b43legacy_phy_initg(struct b43legacy_wldev *dev);
static inline
void b43legacy_voluntary_preempt(void)
{
B43legacy_BUG_ON(!(!in_atomic() && !in_irq() &&
!in_interrupt() && !irqs_disabled()));
#ifndef CONFIG_PREEMPT
cond_resched();
#endif /* CONFIG_PREEMPT */
}
/* Lock the PHY registers against concurrent access from the microcode.
* This lock is nonrecursive. */
void b43legacy_phy_lock(struct b43legacy_wldev *dev)
{
#if B43legacy_DEBUG
B43legacy_WARN_ON(dev->phy.phy_locked);
dev->phy.phy_locked = 1;
#endif
if (dev->dev->id.revision < 3) {
b43legacy_mac_suspend(dev);
} else {
if (!b43legacy_is_mode(dev->wl, NL80211_IFTYPE_AP))
b43legacy_power_saving_ctl_bits(dev, -1, 1);
}
}
void b43legacy_phy_unlock(struct b43legacy_wldev *dev)
{
#if B43legacy_DEBUG
B43legacy_WARN_ON(!dev->phy.phy_locked);
dev->phy.phy_locked = 0;
#endif
if (dev->dev->id.revision < 3) {
b43legacy_mac_enable(dev);
} else {
if (!b43legacy_is_mode(dev->wl, NL80211_IFTYPE_AP))
b43legacy_power_saving_ctl_bits(dev, -1, -1);
}
}
u16 b43legacy_phy_read(struct b43legacy_wldev *dev, u16 offset)
{
b43legacy_write16(dev, B43legacy_MMIO_PHY_CONTROL, offset);
return b43legacy_read16(dev, B43legacy_MMIO_PHY_DATA);
}
void b43legacy_phy_write(struct b43legacy_wldev *dev, u16 offset, u16 val)
{
b43legacy_write16(dev, B43legacy_MMIO_PHY_CONTROL, offset);
mmiowb();
b43legacy_write16(dev, B43legacy_MMIO_PHY_DATA, val);
}
void b43legacy_phy_calibrate(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
b43legacy_read32(dev, B43legacy_MMIO_MACCTL); /* Dummy read. */
if (phy->calibrated)
return;
if (phy->type == B43legacy_PHYTYPE_G && phy->rev == 1) {
b43legacy_wireless_core_reset(dev, 0);
b43legacy_phy_initg(dev);
b43legacy_wireless_core_reset(dev, B43legacy_TMSLOW_GMODE);
}
phy->calibrated = 1;
}
/* intialize B PHY power control
* as described in http://bcm-specs.sipsolutions.net/InitPowerControl
*/
static void b43legacy_phy_init_pctl(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
u16 saved_batt = 0;
u16 saved_ratt = 0;
u16 saved_txctl1 = 0;
int must_reset_txpower = 0;
B43legacy_BUG_ON(!(phy->type == B43legacy_PHYTYPE_B ||
phy->type == B43legacy_PHYTYPE_G));
if (is_bcm_board_vendor(dev) &&
(dev->dev->bus->boardinfo.type == 0x0416))
return;
b43legacy_phy_write(dev, 0x0028, 0x8018);
b43legacy_write16(dev, 0x03E6, b43legacy_read16(dev, 0x03E6) & 0xFFDF);
if (phy->type == B43legacy_PHYTYPE_G) {
if (!phy->gmode)
return;
b43legacy_phy_write(dev, 0x047A, 0xC111);
}
if (phy->savedpctlreg != 0xFFFF)
return;
#ifdef CONFIG_B43LEGACY_DEBUG
if (phy->manual_txpower_control)
return;
#endif
if (phy->type == B43legacy_PHYTYPE_B &&
phy->rev >= 2 &&
phy->radio_ver == 0x2050)
b43legacy_radio_write16(dev, 0x0076,
b43legacy_radio_read16(dev, 0x0076)
| 0x0084);
else {
saved_batt = phy->bbatt;
saved_ratt = phy->rfatt;
saved_txctl1 = phy->txctl1;
if ((phy->radio_rev >= 6) && (phy->radio_rev <= 8)
&& /*FIXME: incomplete specs for 5 < revision < 9 */ 0)
b43legacy_radio_set_txpower_bg(dev, 0xB, 0x1F, 0);
else
b43legacy_radio_set_txpower_bg(dev, 0xB, 9, 0);
must_reset_txpower = 1;
}
b43legacy_dummy_transmission(dev);
phy->savedpctlreg = b43legacy_phy_read(dev, B43legacy_PHY_G_PCTL);
if (must_reset_txpower)
b43legacy_radio_set_txpower_bg(dev, saved_batt, saved_ratt,
saved_txctl1);
else
b43legacy_radio_write16(dev, 0x0076, b43legacy_radio_read16(dev,
0x0076) & 0xFF7B);
b43legacy_radio_clear_tssi(dev);
}
static void b43legacy_phy_agcsetup(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
u16 offset = 0x0000;
if (phy->rev == 1)
offset = 0x4C00;
b43legacy_ilt_write(dev, offset, 0x00FE);
b43legacy_ilt_write(dev, offset + 1, 0x000D);
b43legacy_ilt_write(dev, offset + 2, 0x0013);
b43legacy_ilt_write(dev, offset + 3, 0x0019);
if (phy->rev == 1) {
b43legacy_ilt_write(dev, 0x1800, 0x2710);
b43legacy_ilt_write(dev, 0x1801, 0x9B83);
b43legacy_ilt_write(dev, 0x1802, 0x9B83);
b43legacy_ilt_write(dev, 0x1803, 0x0F8D);
b43legacy_phy_write(dev, 0x0455, 0x0004);
}
b43legacy_phy_write(dev, 0x04A5, (b43legacy_phy_read(dev, 0x04A5)
& 0x00FF) | 0x5700);
b43legacy_phy_write(dev, 0x041A, (b43legacy_phy_read(dev, 0x041A)
& 0xFF80) | 0x000F);
b43legacy_phy_write(dev, 0x041A, (b43legacy_phy_read(dev, 0x041A)
& 0xC07F) | 0x2B80);
b43legacy_phy_write(dev, 0x048C, (b43legacy_phy_read(dev, 0x048C)
& 0xF0FF) | 0x0300);
b43legacy_radio_write16(dev, 0x007A,
b43legacy_radio_read16(dev, 0x007A)
| 0x0008);
b43legacy_phy_write(dev, 0x04A0, (b43legacy_phy_read(dev, 0x04A0)
& 0xFFF0) | 0x0008);
b43legacy_phy_write(dev, 0x04A1, (b43legacy_phy_read(dev, 0x04A1)
& 0xF0FF) | 0x0600);
b43legacy_phy_write(dev, 0x04A2, (b43legacy_phy_read(dev, 0x04A2)
& 0xF0FF) | 0x0700);
b43legacy_phy_write(dev, 0x04A0, (b43legacy_phy_read(dev, 0x04A0)
& 0xF0FF) | 0x0100);
if (phy->rev == 1)
b43legacy_phy_write(dev, 0x04A2,
(b43legacy_phy_read(dev, 0x04A2)
& 0xFFF0) | 0x0007);
b43legacy_phy_write(dev, 0x0488, (b43legacy_phy_read(dev, 0x0488)
& 0xFF00) | 0x001C);
b43legacy_phy_write(dev, 0x0488, (b43legacy_phy_read(dev, 0x0488)
& 0xC0FF) | 0x0200);
b43legacy_phy_write(dev, 0x0496, (b43legacy_phy_read(dev, 0x0496)
& 0xFF00) | 0x001C);
b43legacy_phy_write(dev, 0x0489, (b43legacy_phy_read(dev, 0x0489)
& 0xFF00) | 0x0020);
b43legacy_phy_write(dev, 0x0489, (b43legacy_phy_read(dev, 0x0489)
& 0xC0FF) | 0x0200);
b43legacy_phy_write(dev, 0x0482, (b43legacy_phy_read(dev, 0x0482)
& 0xFF00) | 0x002E);
b43legacy_phy_write(dev, 0x0496, (b43legacy_phy_read(dev, 0x0496)
& 0x00FF) | 0x1A00);
b43legacy_phy_write(dev, 0x0481, (b43legacy_phy_read(dev, 0x0481)
& 0xFF00) | 0x0028);
b43legacy_phy_write(dev, 0x0481, (b43legacy_phy_read(dev, 0x0481)
& 0x00FF) | 0x2C00);
if (phy->rev == 1) {
b43legacy_phy_write(dev, 0x0430, 0x092B);
b43legacy_phy_write(dev, 0x041B,
(b43legacy_phy_read(dev, 0x041B)
& 0xFFE1) | 0x0002);
} else {
b43legacy_phy_write(dev, 0x041B,
b43legacy_phy_read(dev, 0x041B) & 0xFFE1);
b43legacy_phy_write(dev, 0x041F, 0x287A);
b43legacy_phy_write(dev, 0x0420,
(b43legacy_phy_read(dev, 0x0420)
& 0xFFF0) | 0x0004);
}
if (phy->rev > 2) {
b43legacy_phy_write(dev, 0x0422, 0x287A);
b43legacy_phy_write(dev, 0x0420,
(b43legacy_phy_read(dev, 0x0420)
& 0x0FFF) | 0x3000);
}
b43legacy_phy_write(dev, 0x04A8, (b43legacy_phy_read(dev, 0x04A8)
& 0x8080) | 0x7874);
b43legacy_phy_write(dev, 0x048E, 0x1C00);
if (phy->rev == 1) {
b43legacy_phy_write(dev, 0x04AB,
(b43legacy_phy_read(dev, 0x04AB)
& 0xF0FF) | 0x0600);
b43legacy_phy_write(dev, 0x048B, 0x005E);
b43legacy_phy_write(dev, 0x048C,
(b43legacy_phy_read(dev, 0x048C) & 0xFF00)
| 0x001E);
b43legacy_phy_write(dev, 0x048D, 0x0002);
}
b43legacy_ilt_write(dev, offset + 0x0800, 0);
b43legacy_ilt_write(dev, offset + 0x0801, 7);
b43legacy_ilt_write(dev, offset + 0x0802, 16);
b43legacy_ilt_write(dev, offset + 0x0803, 28);
if (phy->rev >= 6) {
b43legacy_phy_write(dev, 0x0426,
(b43legacy_phy_read(dev, 0x0426) & 0xFFFC));
b43legacy_phy_write(dev, 0x0426,
(b43legacy_phy_read(dev, 0x0426) & 0xEFFF));
}
}
static void b43legacy_phy_setupg(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
u16 i;
B43legacy_BUG_ON(phy->type != B43legacy_PHYTYPE_G);
if (phy->rev == 1) {
b43legacy_phy_write(dev, 0x0406, 0x4F19);
b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
(b43legacy_phy_read(dev,
B43legacy_PHY_G_CRS) & 0xFC3F) | 0x0340);
b43legacy_phy_write(dev, 0x042C, 0x005A);
b43legacy_phy_write(dev, 0x0427, 0x001A);
for (i = 0; i < B43legacy_ILT_FINEFREQG_SIZE; i++)
b43legacy_ilt_write(dev, 0x5800 + i,
b43legacy_ilt_finefreqg[i]);
for (i = 0; i < B43legacy_ILT_NOISEG1_SIZE; i++)
b43legacy_ilt_write(dev, 0x1800 + i,
b43legacy_ilt_noiseg1[i]);
for (i = 0; i < B43legacy_ILT_ROTOR_SIZE; i++)
b43legacy_ilt_write32(dev, 0x2000 + i,
b43legacy_ilt_rotor[i]);
} else {
/* nrssi values are signed 6-bit values. Why 0x7654 here? */
b43legacy_nrssi_hw_write(dev, 0xBA98, (s16)0x7654);
if (phy->rev == 2) {
b43legacy_phy_write(dev, 0x04C0, 0x1861);
b43legacy_phy_write(dev, 0x04C1, 0x0271);
} else if (phy->rev > 2) {
b43legacy_phy_write(dev, 0x04C0, 0x0098);
b43legacy_phy_write(dev, 0x04C1, 0x0070);
b43legacy_phy_write(dev, 0x04C9, 0x0080);
}
b43legacy_phy_write(dev, 0x042B, b43legacy_phy_read(dev,
0x042B) | 0x800);
for (i = 0; i < 64; i++)
b43legacy_ilt_write(dev, 0x4000 + i, i);
for (i = 0; i < B43legacy_ILT_NOISEG2_SIZE; i++)
b43legacy_ilt_write(dev, 0x1800 + i,
b43legacy_ilt_noiseg2[i]);
}
if (phy->rev <= 2)
for (i = 0; i < B43legacy_ILT_NOISESCALEG_SIZE; i++)
b43legacy_ilt_write(dev, 0x1400 + i,
b43legacy_ilt_noisescaleg1[i]);
else if ((phy->rev >= 7) && (b43legacy_phy_read(dev, 0x0449) & 0x0200))
for (i = 0; i < B43legacy_ILT_NOISESCALEG_SIZE; i++)
b43legacy_ilt_write(dev, 0x1400 + i,
b43legacy_ilt_noisescaleg3[i]);
else
for (i = 0; i < B43legacy_ILT_NOISESCALEG_SIZE; i++)
b43legacy_ilt_write(dev, 0x1400 + i,
b43legacy_ilt_noisescaleg2[i]);
if (phy->rev == 2)
for (i = 0; i < B43legacy_ILT_SIGMASQR_SIZE; i++)
b43legacy_ilt_write(dev, 0x5000 + i,
b43legacy_ilt_sigmasqr1[i]);
else if ((phy->rev > 2) && (phy->rev <= 8))
for (i = 0; i < B43legacy_ILT_SIGMASQR_SIZE; i++)
b43legacy_ilt_write(dev, 0x5000 + i,
b43legacy_ilt_sigmasqr2[i]);
if (phy->rev == 1) {
for (i = 0; i < B43legacy_ILT_RETARD_SIZE; i++)
b43legacy_ilt_write32(dev, 0x2400 + i,
b43legacy_ilt_retard[i]);
for (i = 4; i < 20; i++)
b43legacy_ilt_write(dev, 0x5400 + i, 0x0020);
b43legacy_phy_agcsetup(dev);
if (is_bcm_board_vendor(dev) &&
(dev->dev->bus->boardinfo.type == 0x0416) &&
(dev->dev->bus->boardinfo.rev == 0x0017))
return;
b43legacy_ilt_write(dev, 0x5001, 0x0002);
b43legacy_ilt_write(dev, 0x5002, 0x0001);
} else {
for (i = 0; i <= 0x20; i++)
b43legacy_ilt_write(dev, 0x1000 + i, 0x0820);
b43legacy_phy_agcsetup(dev);
b43legacy_phy_read(dev, 0x0400); /* dummy read */
b43legacy_phy_write(dev, 0x0403, 0x1000);
b43legacy_ilt_write(dev, 0x3C02, 0x000F);
b43legacy_ilt_write(dev, 0x3C03, 0x0014);
if (is_bcm_board_vendor(dev) &&
(dev->dev->bus->boardinfo.type == 0x0416) &&
(dev->dev->bus->boardinfo.rev == 0x0017))
return;
b43legacy_ilt_write(dev, 0x0401, 0x0002);
b43legacy_ilt_write(dev, 0x0402, 0x0001);
}
}
/* Initialize the APHY portion of a GPHY. */
static void b43legacy_phy_inita(struct b43legacy_wldev *dev)
{
might_sleep();
b43legacy_phy_setupg(dev);
if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_PACTRL)
b43legacy_phy_write(dev, 0x046E, 0x03CF);
}
static void b43legacy_phy_initb2(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
u16 offset;
int val;
b43legacy_write16(dev, 0x03EC, 0x3F22);
b43legacy_phy_write(dev, 0x0020, 0x301C);
b43legacy_phy_write(dev, 0x0026, 0x0000);
b43legacy_phy_write(dev, 0x0030, 0x00C6);
b43legacy_phy_write(dev, 0x0088, 0x3E00);
val = 0x3C3D;
for (offset = 0x0089; offset < 0x00A7; offset++) {
b43legacy_phy_write(dev, offset, val);
val -= 0x0202;
}
b43legacy_phy_write(dev, 0x03E4, 0x3000);
b43legacy_radio_selectchannel(dev, phy->channel, 0);
if (phy->radio_ver != 0x2050) {
b43legacy_radio_write16(dev, 0x0075, 0x0080);
b43legacy_radio_write16(dev, 0x0079, 0x0081);
}
b43legacy_radio_write16(dev, 0x0050, 0x0020);
b43legacy_radio_write16(dev, 0x0050, 0x0023);
if (phy->radio_ver == 0x2050) {
b43legacy_radio_write16(dev, 0x0050, 0x0020);
b43legacy_radio_write16(dev, 0x005A, 0x0070);
b43legacy_radio_write16(dev, 0x005B, 0x007B);
b43legacy_radio_write16(dev, 0x005C, 0x00B0);
b43legacy_radio_write16(dev, 0x007A, 0x000F);
b43legacy_phy_write(dev, 0x0038, 0x0677);
b43legacy_radio_init2050(dev);
}
b43legacy_phy_write(dev, 0x0014, 0x0080);
b43legacy_phy_write(dev, 0x0032, 0x00CA);
b43legacy_phy_write(dev, 0x0032, 0x00CC);
b43legacy_phy_write(dev, 0x0035, 0x07C2);
b43legacy_phy_lo_b_measure(dev);
b43legacy_phy_write(dev, 0x0026, 0xCC00);
if (phy->radio_ver != 0x2050)
b43legacy_phy_write(dev, 0x0026, 0xCE00);
b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT, 0x1000);
b43legacy_phy_write(dev, 0x002A, 0x88A3);
if (phy->radio_ver != 0x2050)
b43legacy_phy_write(dev, 0x002A, 0x88C2);
b43legacy_radio_set_txpower_bg(dev, 0xFFFF, 0xFFFF, 0xFFFF);
b43legacy_phy_init_pctl(dev);
}
static void b43legacy_phy_initb4(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
u16 offset;
u16 val;
b43legacy_write16(dev, 0x03EC, 0x3F22);
b43legacy_phy_write(dev, 0x0020, 0x301C);
b43legacy_phy_write(dev, 0x0026, 0x0000);
b43legacy_phy_write(dev, 0x0030, 0x00C6);
b43legacy_phy_write(dev, 0x0088, 0x3E00);
val = 0x3C3D;
for (offset = 0x0089; offset < 0x00A7; offset++) {
b43legacy_phy_write(dev, offset, val);
val -= 0x0202;
}
b43legacy_phy_write(dev, 0x03E4, 0x3000);
b43legacy_radio_selectchannel(dev, phy->channel, 0);
if (phy->radio_ver != 0x2050) {
b43legacy_radio_write16(dev, 0x0075, 0x0080);
b43legacy_radio_write16(dev, 0x0079, 0x0081);
}
b43legacy_radio_write16(dev, 0x0050, 0x0020);
b43legacy_radio_write16(dev, 0x0050, 0x0023);
if (phy->radio_ver == 0x2050) {
b43legacy_radio_write16(dev, 0x0050, 0x0020);
b43legacy_radio_write16(dev, 0x005A, 0x0070);
b43legacy_radio_write16(dev, 0x005B, 0x007B);
b43legacy_radio_write16(dev, 0x005C, 0x00B0);
b43legacy_radio_write16(dev, 0x007A, 0x000F);
b43legacy_phy_write(dev, 0x0038, 0x0677);
b43legacy_radio_init2050(dev);
}
b43legacy_phy_write(dev, 0x0014, 0x0080);
b43legacy_phy_write(dev, 0x0032, 0x00CA);
if (phy->radio_ver == 0x2050)
b43legacy_phy_write(dev, 0x0032, 0x00E0);
b43legacy_phy_write(dev, 0x0035, 0x07C2);
b43legacy_phy_lo_b_measure(dev);
b43legacy_phy_write(dev, 0x0026, 0xCC00);
if (phy->radio_ver == 0x2050)
b43legacy_phy_write(dev, 0x0026, 0xCE00);
b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT, 0x1100);
b43legacy_phy_write(dev, 0x002A, 0x88A3);
if (phy->radio_ver == 0x2050)
b43legacy_phy_write(dev, 0x002A, 0x88C2);
b43legacy_radio_set_txpower_bg(dev, 0xFFFF, 0xFFFF, 0xFFFF);
if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_RSSI) {
b43legacy_calc_nrssi_slope(dev);
b43legacy_calc_nrssi_threshold(dev);
}
b43legacy_phy_init_pctl(dev);
}
static void b43legacy_phy_initb5(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
u16 offset;
u16 value;
u8 old_channel;
if (phy->analog == 1)
b43legacy_radio_write16(dev, 0x007A,
b43legacy_radio_read16(dev, 0x007A)
| 0x0050);
if (!is_bcm_board_vendor(dev) &&
(dev->dev->bus->boardinfo.type != 0x0416)) {
value = 0x2120;
for (offset = 0x00A8 ; offset < 0x00C7; offset++) {
b43legacy_phy_write(dev, offset, value);
value += 0x0202;
}
}
b43legacy_phy_write(dev, 0x0035,
(b43legacy_phy_read(dev, 0x0035) & 0xF0FF)
| 0x0700);
if (phy->radio_ver == 0x2050)
b43legacy_phy_write(dev, 0x0038, 0x0667);
if (phy->gmode) {
if (phy->radio_ver == 0x2050) {
b43legacy_radio_write16(dev, 0x007A,
b43legacy_radio_read16(dev, 0x007A)
| 0x0020);
b43legacy_radio_write16(dev, 0x0051,
b43legacy_radio_read16(dev, 0x0051)
| 0x0004);
}
b43legacy_write16(dev, B43legacy_MMIO_PHY_RADIO, 0x0000);
b43legacy_phy_write(dev, 0x0802, b43legacy_phy_read(dev, 0x0802)
| 0x0100);
b43legacy_phy_write(dev, 0x042B, b43legacy_phy_read(dev, 0x042B)
| 0x2000);
b43legacy_phy_write(dev, 0x001C, 0x186A);
b43legacy_phy_write(dev, 0x0013, (b43legacy_phy_read(dev,
0x0013) & 0x00FF) | 0x1900);
b43legacy_phy_write(dev, 0x0035, (b43legacy_phy_read(dev,
0x0035) & 0xFFC0) | 0x0064);
b43legacy_phy_write(dev, 0x005D, (b43legacy_phy_read(dev,
0x005D) & 0xFF80) | 0x000A);
b43legacy_phy_write(dev, 0x5B, 0x0000);
b43legacy_phy_write(dev, 0x5C, 0x0000);
}
if (dev->bad_frames_preempt)
b43legacy_phy_write(dev, B43legacy_PHY_RADIO_BITFIELD,
b43legacy_phy_read(dev,
B43legacy_PHY_RADIO_BITFIELD) | (1 << 12));
if (phy->analog == 1) {
b43legacy_phy_write(dev, 0x0026, 0xCE00);
b43legacy_phy_write(dev, 0x0021, 0x3763);
b43legacy_phy_write(dev, 0x0022, 0x1BC3);
b43legacy_phy_write(dev, 0x0023, 0x06F9);
b43legacy_phy_write(dev, 0x0024, 0x037E);
} else
b43legacy_phy_write(dev, 0x0026, 0xCC00);
b43legacy_phy_write(dev, 0x0030, 0x00C6);
b43legacy_write16(dev, 0x03EC, 0x3F22);
if (phy->analog == 1)
b43legacy_phy_write(dev, 0x0020, 0x3E1C);
else
b43legacy_phy_write(dev, 0x0020, 0x301C);
if (phy->analog == 0)
b43legacy_write16(dev, 0x03E4, 0x3000);
old_channel = (phy->channel == 0xFF) ? 1 : phy->channel;
/* Force to channel 7, even if not supported. */
b43legacy_radio_selectchannel(dev, 7, 0);
if (phy->radio_ver != 0x2050) {
b43legacy_radio_write16(dev, 0x0075, 0x0080);
b43legacy_radio_write16(dev, 0x0079, 0x0081);
}
b43legacy_radio_write16(dev, 0x0050, 0x0020);
b43legacy_radio_write16(dev, 0x0050, 0x0023);
if (phy->radio_ver == 0x2050) {
b43legacy_radio_write16(dev, 0x0050, 0x0020);
b43legacy_radio_write16(dev, 0x005A, 0x0070);
}
b43legacy_radio_write16(dev, 0x005B, 0x007B);
b43legacy_radio_write16(dev, 0x005C, 0x00B0);
b43legacy_radio_write16(dev, 0x007A, b43legacy_radio_read16(dev,
0x007A) | 0x0007);
b43legacy_radio_selectchannel(dev, old_channel, 0);
b43legacy_phy_write(dev, 0x0014, 0x0080);
b43legacy_phy_write(dev, 0x0032, 0x00CA);
b43legacy_phy_write(dev, 0x002A, 0x88A3);
b43legacy_radio_set_txpower_bg(dev, 0xFFFF, 0xFFFF, 0xFFFF);
if (phy->radio_ver == 0x2050)
b43legacy_radio_write16(dev, 0x005D, 0x000D);
b43legacy_write16(dev, 0x03E4, (b43legacy_read16(dev, 0x03E4) &
0xFFC0) | 0x0004);
}
static void b43legacy_phy_initb6(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
u16 offset;
u16 val;
u8 old_channel;
b43legacy_phy_write(dev, 0x003E, 0x817A);
b43legacy_radio_write16(dev, 0x007A,
(b43legacy_radio_read16(dev, 0x007A) | 0x0058));
if (phy->radio_rev == 4 ||
phy->radio_rev == 5) {
b43legacy_radio_write16(dev, 0x0051, 0x0037);
b43legacy_radio_write16(dev, 0x0052, 0x0070);
b43legacy_radio_write16(dev, 0x0053, 0x00B3);
b43legacy_radio_write16(dev, 0x0054, 0x009B);
b43legacy_radio_write16(dev, 0x005A, 0x0088);
b43legacy_radio_write16(dev, 0x005B, 0x0088);
b43legacy_radio_write16(dev, 0x005D, 0x0088);
b43legacy_radio_write16(dev, 0x005E, 0x0088);
b43legacy_radio_write16(dev, 0x007D, 0x0088);
b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
B43legacy_UCODEFLAGS_OFFSET,
(b43legacy_shm_read32(dev,
B43legacy_SHM_SHARED,
B43legacy_UCODEFLAGS_OFFSET)
| 0x00000200));
}
if (phy->radio_rev == 8) {
b43legacy_radio_write16(dev, 0x0051, 0x0000);
b43legacy_radio_write16(dev, 0x0052, 0x0040);
b43legacy_radio_write16(dev, 0x0053, 0x00B7);
b43legacy_radio_write16(dev, 0x0054, 0x0098);
b43legacy_radio_write16(dev, 0x005A, 0x0088);
b43legacy_radio_write16(dev, 0x005B, 0x006B);
b43legacy_radio_write16(dev, 0x005C, 0x000F);
if (dev->dev->bus->sprom.boardflags_lo & 0x8000) {
b43legacy_radio_write16(dev, 0x005D, 0x00FA);
b43legacy_radio_write16(dev, 0x005E, 0x00D8);
} else {
b43legacy_radio_write16(dev, 0x005D, 0x00F5);
b43legacy_radio_write16(dev, 0x005E, 0x00B8);
}
b43legacy_radio_write16(dev, 0x0073, 0x0003);
b43legacy_radio_write16(dev, 0x007D, 0x00A8);
b43legacy_radio_write16(dev, 0x007C, 0x0001);
b43legacy_radio_write16(dev, 0x007E, 0x0008);
}
val = 0x1E1F;
for (offset = 0x0088; offset < 0x0098; offset++) {
b43legacy_phy_write(dev, offset, val);
val -= 0x0202;
}
val = 0x3E3F;
for (offset = 0x0098; offset < 0x00A8; offset++) {
b43legacy_phy_write(dev, offset, val);
val -= 0x0202;
}
val = 0x2120;
for (offset = 0x00A8; offset < 0x00C8; offset++) {
b43legacy_phy_write(dev, offset, (val & 0x3F3F));
val += 0x0202;
}
if (phy->type == B43legacy_PHYTYPE_G) {
b43legacy_radio_write16(dev, 0x007A,
b43legacy_radio_read16(dev, 0x007A) |
0x0020);
b43legacy_radio_write16(dev, 0x0051,
b43legacy_radio_read16(dev, 0x0051) |
0x0004);
b43legacy_phy_write(dev, 0x0802,
b43legacy_phy_read(dev, 0x0802) | 0x0100);
b43legacy_phy_write(dev, 0x042B,
b43legacy_phy_read(dev, 0x042B) | 0x2000);
b43legacy_phy_write(dev, 0x5B, 0x0000);
b43legacy_phy_write(dev, 0x5C, 0x0000);
}
old_channel = phy->channel;
if (old_channel >= 8)
b43legacy_radio_selectchannel(dev, 1, 0);
else
b43legacy_radio_selectchannel(dev, 13, 0);
b43legacy_radio_write16(dev, 0x0050, 0x0020);
b43legacy_radio_write16(dev, 0x0050, 0x0023);
udelay(40);
if (phy->radio_rev < 6 || phy->radio_rev == 8) {
b43legacy_radio_write16(dev, 0x007C,
(b43legacy_radio_read16(dev, 0x007C)
| 0x0002));
b43legacy_radio_write16(dev, 0x0050, 0x0020);
}
if (phy->radio_rev <= 2) {
b43legacy_radio_write16(dev, 0x0050, 0x0020);
b43legacy_radio_write16(dev, 0x005A, 0x0070);
b43legacy_radio_write16(dev, 0x005B, 0x007B);
b43legacy_radio_write16(dev, 0x005C, 0x00B0);
}
b43legacy_radio_write16(dev, 0x007A,
(b43legacy_radio_read16(dev,
0x007A) & 0x00F8) | 0x0007);
b43legacy_radio_selectchannel(dev, old_channel, 0);
b43legacy_phy_write(dev, 0x0014, 0x0200);
if (phy->radio_rev >= 6)
b43legacy_phy_write(dev, 0x002A, 0x88C2);
else
b43legacy_phy_write(dev, 0x002A, 0x8AC0);
b43legacy_phy_write(dev, 0x0038, 0x0668);
b43legacy_radio_set_txpower_bg(dev, 0xFFFF, 0xFFFF, 0xFFFF);
if (phy->radio_rev == 4 || phy->radio_rev == 5)
b43legacy_phy_write(dev, 0x005D, (b43legacy_phy_read(dev,
0x005D) & 0xFF80) | 0x0003);
if (phy->radio_rev <= 2)
b43legacy_radio_write16(dev, 0x005D, 0x000D);
if (phy->analog == 4) {
b43legacy_write16(dev, 0x03E4, 0x0009);
b43legacy_phy_write(dev, 0x61, b43legacy_phy_read(dev, 0x61)
& 0xFFF);
} else
b43legacy_phy_write(dev, 0x0002, (b43legacy_phy_read(dev,
0x0002) & 0xFFC0) | 0x0004);
if (phy->type == B43legacy_PHYTYPE_G)
b43legacy_write16(dev, 0x03E6, 0x0);
if (phy->type == B43legacy_PHYTYPE_B) {
b43legacy_write16(dev, 0x03E6, 0x8140);
b43legacy_phy_write(dev, 0x0016, 0x0410);
b43legacy_phy_write(dev, 0x0017, 0x0820);
b43legacy_phy_write(dev, 0x0062, 0x0007);
b43legacy_radio_init2050(dev);
b43legacy_phy_lo_g_measure(dev);
if (dev->dev->bus->sprom.boardflags_lo &
B43legacy_BFL_RSSI) {
b43legacy_calc_nrssi_slope(dev);
b43legacy_calc_nrssi_threshold(dev);
}
b43legacy_phy_init_pctl(dev);
}
}
static void b43legacy_calc_loopback_gain(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
u16 backup_phy[15] = {0};
u16 backup_radio[3];
u16 backup_bband;
u16 i;
u16 loop1_cnt;
u16 loop1_done;
u16 loop1_omitted;
u16 loop2_done;
backup_phy[0] = b43legacy_phy_read(dev, 0x0429);
backup_phy[1] = b43legacy_phy_read(dev, 0x0001);
backup_phy[2] = b43legacy_phy_read(dev, 0x0811);
backup_phy[3] = b43legacy_phy_read(dev, 0x0812);
if (phy->rev != 1) {
backup_phy[4] = b43legacy_phy_read(dev, 0x0814);
backup_phy[5] = b43legacy_phy_read(dev, 0x0815);
}
backup_phy[6] = b43legacy_phy_read(dev, 0x005A);
backup_phy[7] = b43legacy_phy_read(dev, 0x0059);
backup_phy[8] = b43legacy_phy_read(dev, 0x0058);
backup_phy[9] = b43legacy_phy_read(dev, 0x000A);
backup_phy[10] = b43legacy_phy_read(dev, 0x0003);
backup_phy[11] = b43legacy_phy_read(dev, 0x080F);
backup_phy[12] = b43legacy_phy_read(dev, 0x0810);
backup_phy[13] = b43legacy_phy_read(dev, 0x002B);
backup_phy[14] = b43legacy_phy_read(dev, 0x0015);
b43legacy_phy_read(dev, 0x002D); /* dummy read */
backup_bband = phy->bbatt;
backup_radio[0] = b43legacy_radio_read16(dev, 0x0052);
backup_radio[1] = b43legacy_radio_read16(dev, 0x0043);
backup_radio[2] = b43legacy_radio_read16(dev, 0x007A);
b43legacy_phy_write(dev, 0x0429,
b43legacy_phy_read(dev, 0x0429) & 0x3FFF);
b43legacy_phy_write(dev, 0x0001,
b43legacy_phy_read(dev, 0x0001) & 0x8000);
b43legacy_phy_write(dev, 0x0811,
b43legacy_phy_read(dev, 0x0811) | 0x0002);
b43legacy_phy_write(dev, 0x0812,
b43legacy_phy_read(dev, 0x0812) & 0xFFFD);
b43legacy_phy_write(dev, 0x0811,
b43legacy_phy_read(dev, 0x0811) | 0x0001);
b43legacy_phy_write(dev, 0x0812,
b43legacy_phy_read(dev, 0x0812) & 0xFFFE);
if (phy->rev != 1) {
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, 0x0814,
b43legacy_phy_read(dev, 0x0814) | 0x0002);
b43legacy_phy_write(dev, 0x0815,
b43legacy_phy_read(dev, 0x0815) & 0xFFFD);
}
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)
& 0xFFCF) | 0x0030);
b43legacy_phy_write(dev, 0x0812, (b43legacy_phy_read(dev, 0x0812)
& 0xFFCF) | 0x0010);
b43legacy_phy_write(dev, 0x005A, 0x0780);
b43legacy_phy_write(dev, 0x0059, 0xC810);
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);
if (phy->rev != 1) {
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);
if (phy->radio_ver == 0x2050 && phy->radio_rev == 2) {
b43legacy_radio_write16(dev, 0x0052, 0x0000);
b43legacy_radio_write16(dev, 0x0043,
(b43legacy_radio_read16(dev, 0x0043)
& 0xFFF0) | 0x0009);
loop1_cnt = 9;
} else if (phy->radio_rev == 8) {
b43legacy_radio_write16(dev, 0x0043, 0x000F);
loop1_cnt = 15;
} else
loop1_cnt = 0;
b43legacy_phy_set_baseband_attenuation(dev, 11);
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, 0x002B,
(b43legacy_phy_read(dev, 0x002B)
& 0xFFC0) | 0x0001);
b43legacy_phy_write(dev, 0x002B,
(b43legacy_phy_read(dev, 0x002B)
& 0xC0FF) | 0x0800);
b43legacy_phy_write(dev, 0x0811,
b43legacy_phy_read(dev, 0x0811) | 0x0100);
b43legacy_phy_write(dev, 0x0812,
b43legacy_phy_read(dev, 0x0812) & 0xCFFF);
if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_EXTLNA) {
if (phy->rev >= 7) {
b43legacy_phy_write(dev, 0x0811,
b43legacy_phy_read(dev, 0x0811)
| 0x0800);
b43legacy_phy_write(dev, 0x0812,
b43legacy_phy_read(dev, 0x0812)
| 0x8000);
}
}
b43legacy_radio_write16(dev, 0x007A,
b43legacy_radio_read16(dev, 0x007A)
& 0x00F7);
for (i = 0; i < loop1_cnt; i++) {
b43legacy_radio_write16(dev, 0x0043, loop1_cnt);
b43legacy_phy_write(dev, 0x0812,
(b43legacy_phy_read(dev, 0x0812)
& 0xF0FF) | (i << 8));
b43legacy_phy_write(dev, 0x0015,
(b43legacy_phy_read(dev, 0x0015)
& 0x0FFF) | 0xA000);
b43legacy_phy_write(dev, 0x0015,
(b43legacy_phy_read(dev, 0x0015)
& 0x0FFF) | 0xF000);
udelay(20);
if (b43legacy_phy_read(dev, 0x002D) >= 0x0DFC)
break;
}
loop1_done = i;
loop1_omitted = loop1_cnt - loop1_done;
loop2_done = 0;
if (loop1_done >= 8) {
b43legacy_phy_write(dev, 0x0812,
b43legacy_phy_read(dev, 0x0812)
| 0x0030);
for (i = loop1_done - 8; i < 16; i++) {
b43legacy_phy_write(dev, 0x0812,
(b43legacy_phy_read(dev, 0x0812)
& 0xF0FF) | (i << 8));
b43legacy_phy_write(dev, 0x0015,
(b43legacy_phy_read(dev, 0x0015)
& 0x0FFF) | 0xA000);
b43legacy_phy_write(dev, 0x0015,
(b43legacy_phy_read(dev, 0x0015)
& 0x0FFF) | 0xF000);
udelay(20);
if (b43legacy_phy_read(dev, 0x002D) >= 0x0DFC)
break;
}
}
if (phy->rev != 1) {
b43legacy_phy_write(dev, 0x0814, backup_phy[4]);
b43legacy_phy_write(dev, 0x0815, backup_phy[5]);
}
b43legacy_phy_write(dev, 0x005A, backup_phy[6]);
b43legacy_phy_write(dev, 0x0059, backup_phy[7]);
b43legacy_phy_write(dev, 0x0058, backup_phy[8]);
b43legacy_phy_write(dev, 0x000A, backup_phy[9]);
b43legacy_phy_write(dev, 0x0003, backup_phy[10]);
b43legacy_phy_write(dev, 0x080F, backup_phy[11]);
b43legacy_phy_write(dev, 0x0810, backup_phy[12]);
b43legacy_phy_write(dev, 0x002B, backup_phy[13]);
b43legacy_phy_write(dev, 0x0015, backup_phy[14]);
b43legacy_phy_set_baseband_attenuation(dev, backup_bband);
b43legacy_radio_write16(dev, 0x0052, backup_radio[0]);
b43legacy_radio_write16(dev, 0x0043, backup_radio[1]);
b43legacy_radio_write16(dev, 0x007A, backup_radio[2]);
b43legacy_phy_write(dev, 0x0811, backup_phy[2] | 0x0003);
udelay(10);
b43legacy_phy_write(dev, 0x0811, backup_phy[2]);
b43legacy_phy_write(dev, 0x0812, backup_phy[3]);
b43legacy_phy_write(dev, 0x0429, backup_phy[0]);
b43legacy_phy_write(dev, 0x0001, backup_phy[1]);
phy->loopback_gain[0] = ((loop1_done * 6) - (loop1_omitted * 4)) - 11;
phy->loopback_gain[1] = (24 - (3 * loop2_done)) * 2;
}
static void b43legacy_phy_initg(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
u16 tmp;
if (phy->rev == 1)
b43legacy_phy_initb5(dev);
else
b43legacy_phy_initb6(dev);
if (phy->rev >= 2 && phy->gmode)
b43legacy_phy_inita(dev);
if (phy->rev >= 2) {
b43legacy_phy_write(dev, 0x0814, 0x0000);
b43legacy_phy_write(dev, 0x0815, 0x0000);
}
if (phy->rev == 2) {
b43legacy_phy_write(dev, 0x0811, 0x0000);
b43legacy_phy_write(dev, 0x0015, 0x00C0);
}
if (phy->rev > 5) {
b43legacy_phy_write(dev, 0x0811, 0x0400);
b43legacy_phy_write(dev, 0x0015, 0x00C0);
}
if (phy->gmode) {
tmp = b43legacy_phy_read(dev, 0x0400) & 0xFF;
if (tmp == 3) {
b43legacy_phy_write(dev, 0x04C2, 0x1816);
b43legacy_phy_write(dev, 0x04C3, 0x8606);
}
if (tmp == 4 || tmp == 5) {
b43legacy_phy_write(dev, 0x04C2, 0x1816);
b43legacy_phy_write(dev, 0x04C3, 0x8006);
b43legacy_phy_write(dev, 0x04CC,
(b43legacy_phy_read(dev,
0x04CC) & 0x00FF) |
0x1F00);
}
if (phy->rev >= 2)
b43legacy_phy_write(dev, 0x047E, 0x0078);
}
if (phy->radio_rev == 8) {
b43legacy_phy_write(dev, 0x0801, b43legacy_phy_read(dev, 0x0801)
| 0x0080);
b43legacy_phy_write(dev, 0x043E, b43legacy_phy_read(dev, 0x043E)
| 0x0004);
}
if (phy->rev >= 2 && phy->gmode)
b43legacy_calc_loopback_gain(dev);
if (phy->radio_rev != 8) {
if (phy->initval == 0xFFFF)
phy->initval = b43legacy_radio_init2050(dev);
else
b43legacy_radio_write16(dev, 0x0078, phy->initval);
}
if (phy->txctl2 == 0xFFFF)
b43legacy_phy_lo_g_measure(dev);
else {
if (phy->radio_ver == 0x2050 && phy->radio_rev == 8)
b43legacy_radio_write16(dev, 0x0052,
(phy->txctl1 << 4) |
phy->txctl2);
else
b43legacy_radio_write16(dev, 0x0052,
(b43legacy_radio_read16(dev,
0x0052) & 0xFFF0) |
phy->txctl1);
if (phy->rev >= 6)
b43legacy_phy_write(dev, 0x0036,
(b43legacy_phy_read(dev, 0x0036)
& 0x0FFF) | (phy->txctl2 << 12));
if (dev->dev->bus->sprom.boardflags_lo &
B43legacy_BFL_PACTRL)
b43legacy_phy_write(dev, 0x002E, 0x8075);
else
b43legacy_phy_write(dev, 0x002E, 0x807F);
if (phy->rev < 2)
b43legacy_phy_write(dev, 0x002F, 0x0101);
else
b43legacy_phy_write(dev, 0x002F, 0x0202);
}
if (phy->gmode) {
b43legacy_phy_lo_adjust(dev, 0);
b43legacy_phy_write(dev, 0x080F, 0x8078);
}
if (!(dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_RSSI)) {
/* The specs state to update the NRSSI LT with
* the value 0x7FFFFFFF here. I think that is some weird
* compiler optimization in the original driver.
* Essentially, what we do here is resetting all NRSSI LT
* entries to -32 (see the clamp_val() in nrssi_hw_update())
*/
b43legacy_nrssi_hw_update(dev, 0xFFFF);
b43legacy_calc_nrssi_threshold(dev);
} else if (phy->gmode || phy->rev >= 2) {
if (phy->nrssi[0] == -1000) {
B43legacy_WARN_ON(phy->nrssi[1] != -1000);
b43legacy_calc_nrssi_slope(dev);
} else {
B43legacy_WARN_ON(phy->nrssi[1] == -1000);
b43legacy_calc_nrssi_threshold(dev);
}
}
if (phy->radio_rev == 8)
b43legacy_phy_write(dev, 0x0805, 0x3230);
b43legacy_phy_init_pctl(dev);
if (dev->dev->bus->chip_id == 0x4306
&& dev->dev->bus->chip_package == 2) {
b43legacy_phy_write(dev, 0x0429,
b43legacy_phy_read(dev, 0x0429) & 0xBFFF);
b43legacy_phy_write(dev, 0x04C3,
b43legacy_phy_read(dev, 0x04C3) & 0x7FFF);
}
}
static u16 b43legacy_phy_lo_b_r15_loop(struct b43legacy_wldev *dev)
{
int i;
u16 ret = 0;
unsigned long flags;
local_irq_save(flags);
for (i = 0; i < 10; i++) {
b43legacy_phy_write(dev, 0x0015, 0xAFA0);
udelay(1);
b43legacy_phy_write(dev, 0x0015, 0xEFA0);
udelay(10);
b43legacy_phy_write(dev, 0x0015, 0xFFA0);
udelay(40);
ret += b43legacy_phy_read(dev, 0x002C);
}
local_irq_restore(flags);
b43legacy_voluntary_preempt();
return ret;
}
void b43legacy_phy_lo_b_measure(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
u16 regstack[12] = { 0 };
u16 mls;
u16 fval;
int i;
int j;
regstack[0] = b43legacy_phy_read(dev, 0x0015);
regstack[1] = b43legacy_radio_read16(dev, 0x0052) & 0xFFF0;
if (phy->radio_ver == 0x2053) {
regstack[2] = b43legacy_phy_read(dev, 0x000A);
regstack[3] = b43legacy_phy_read(dev, 0x002A);
regstack[4] = b43legacy_phy_read(dev, 0x0035);
regstack[5] = b43legacy_phy_read(dev, 0x0003);
regstack[6] = b43legacy_phy_read(dev, 0x0001);
regstack[7] = b43legacy_phy_read(dev, 0x0030);
regstack[8] = b43legacy_radio_read16(dev, 0x0043);
regstack[9] = b43legacy_radio_read16(dev, 0x007A);
regstack[10] = b43legacy_read16(dev, 0x03EC);
regstack[11] = b43legacy_radio_read16(dev, 0x0052) & 0x00F0;
b43legacy_phy_write(dev, 0x0030, 0x00FF);
b43legacy_write16(dev, 0x03EC, 0x3F3F);
b43legacy_phy_write(dev, 0x0035, regstack[4] & 0xFF7F);
b43legacy_radio_write16(dev, 0x007A, regstack[9] & 0xFFF0);
}
b43legacy_phy_write(dev, 0x0015, 0xB000);
b43legacy_phy_write(dev, 0x002B, 0x0004);
if (phy->radio_ver == 0x2053) {
b43legacy_phy_write(dev, 0x002B, 0x0203);
b43legacy_phy_write(dev, 0x002A, 0x08A3);
}
phy->minlowsig[0] = 0xFFFF;
for (i = 0; i < 4; i++) {
b43legacy_radio_write16(dev, 0x0052, regstack[1] | i);
b43legacy_phy_lo_b_r15_loop(dev);
}
for (i = 0; i < 10; i++) {
b43legacy_radio_write16(dev, 0x0052, regstack[1] | i);
mls = b43legacy_phy_lo_b_r15_loop(dev) / 10;
if (mls < phy->minlowsig[0]) {
phy->minlowsig[0] = mls;
phy->minlowsigpos[0] = i;
}
}
b43legacy_radio_write16(dev, 0x0052, regstack[1]
| phy->minlowsigpos[0]);
phy->minlowsig[1] = 0xFFFF;
for (i = -4; i < 5; i += 2) {
for (j = -4; j < 5; j += 2) {
if (j < 0)
fval = (0x0100 * i) + j + 0x0100;
else
fval = (0x0100 * i) + j;
b43legacy_phy_write(dev, 0x002F, fval);
mls = b43legacy_phy_lo_b_r15_loop(dev) / 10;
if (mls < phy->minlowsig[1]) {
phy->minlowsig[1] = mls;
phy->minlowsigpos[1] = fval;
}
}
}
phy->minlowsigpos[1] += 0x0101;
b43legacy_phy_write(dev, 0x002F, phy->minlowsigpos[1]);
if (phy->radio_ver == 0x2053) {
b43legacy_phy_write(dev, 0x000A, regstack[2]);
b43legacy_phy_write(dev, 0x002A, regstack[3]);
b43legacy_phy_write(dev, 0x0035, regstack[4]);
b43legacy_phy_write(dev, 0x0003, regstack[5]);
b43legacy_phy_write(dev, 0x0001, regstack[6]);
b43legacy_phy_write(dev, 0x0030, regstack[7]);
b43legacy_radio_write16(dev, 0x0043, regstack[8]);
b43legacy_radio_write16(dev, 0x007A, regstack[9]);
b43legacy_radio_write16(dev, 0x0052,
(b43legacy_radio_read16(dev, 0x0052)
& 0x000F) | regstack[11]);
b43legacy_write16(dev, 0x03EC, regstack[10]);
}
b43legacy_phy_write(dev, 0x0015, regstack[0]);
}
static inline
u16 b43legacy_phy_lo_g_deviation_subval(struct b43legacy_wldev *dev,
u16 control)
{
struct b43legacy_phy *phy = &dev->phy;
u16 ret;
unsigned long flags;
local_irq_save(flags);
if (phy->gmode) {
b43legacy_phy_write(dev, 0x15, 0xE300);
control <<= 8;
b43legacy_phy_write(dev, 0x0812, control | 0x00B0);
udelay(5);
b43legacy_phy_write(dev, 0x0812, control | 0x00B2);
udelay(2);
b43legacy_phy_write(dev, 0x0812, control | 0x00B3);
udelay(4);
b43legacy_phy_write(dev, 0x0015, 0xF300);
udelay(8);
} else {
b43legacy_phy_write(dev, 0x0015, control | 0xEFA0);
udelay(2);
b43legacy_phy_write(dev, 0x0015, control | 0xEFE0);
udelay(4);
b43legacy_phy_write(dev, 0x0015, control | 0xFFE0);
udelay(8);
}
ret = b43legacy_phy_read(dev, 0x002D);
local_irq_restore(flags);
b43legacy_voluntary_preempt();
return ret;
}
static u32 b43legacy_phy_lo_g_singledeviation(struct b43legacy_wldev *dev,
u16 control)
{
int i;
u32 ret = 0;
for (i = 0; i < 8; i++)
ret += b43legacy_phy_lo_g_deviation_subval(dev, control);
return ret;
}
/* Write the LocalOscillator CONTROL */
static inline
void b43legacy_lo_write(struct b43legacy_wldev *dev,
struct b43legacy_lopair *pair)
{
u16 value;
value = (u8)(pair->low);
value |= ((u8)(pair->high)) << 8;
#ifdef CONFIG_B43LEGACY_DEBUG
/* Sanity check. */
if (pair->low < -8 || pair->low > 8 ||
pair->high < -8 || pair->high > 8) {
b43legacydbg(dev->wl,
"WARNING: Writing invalid LOpair "
"(low: %d, high: %d)\n",
pair->low, pair->high);
dump_stack();
}
#endif
b43legacy_phy_write(dev, B43legacy_PHY_G_LO_CONTROL, value);
}
static inline
struct b43legacy_lopair *b43legacy_find_lopair(struct b43legacy_wldev *dev,
u16 bbatt,
u16 rfatt,
u16 tx)
{
static const u8 dict[10] = { 11, 10, 11, 12, 13, 12, 13, 12, 13, 12 };
struct b43legacy_phy *phy = &dev->phy;
if (bbatt > 6)
bbatt = 6;
B43legacy_WARN_ON(rfatt >= 10);
if (tx == 3)
return b43legacy_get_lopair(phy, rfatt, bbatt);
return b43legacy_get_lopair(phy, dict[rfatt], bbatt);
}
static inline
struct b43legacy_lopair *b43legacy_current_lopair(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
return b43legacy_find_lopair(dev, phy->bbatt,
phy->rfatt, phy->txctl1);
}
/* Adjust B/G LO */
void b43legacy_phy_lo_adjust(struct b43legacy_wldev *dev, int fixed)
{
struct b43legacy_lopair *pair;
if (fixed) {
/* Use fixed values. Only for initialization. */
pair = b43legacy_find_lopair(dev, 2, 3, 0);
} else
pair = b43legacy_current_lopair(dev);
b43legacy_lo_write(dev, pair);
}
static void b43legacy_phy_lo_g_measure_txctl2(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
u16 txctl2 = 0;
u16 i;
u32 smallest;
u32 tmp;
b43legacy_radio_write16(dev, 0x0052, 0x0000);
udelay(10);
smallest = b43legacy_phy_lo_g_singledeviation(dev, 0);
for (i = 0; i < 16; i++) {
b43legacy_radio_write16(dev, 0x0052, i);
udelay(10);
tmp = b43legacy_phy_lo_g_singledeviation(dev, 0);
if (tmp < smallest) {
smallest = tmp;
txctl2 = i;
}
}
phy->txctl2 = txctl2;
}
static
void b43legacy_phy_lo_g_state(struct b43legacy_wldev *dev,
const struct b43legacy_lopair *in_pair,
struct b43legacy_lopair *out_pair,
u16 r27)
{
static const struct b43legacy_lopair transitions[8] = {
{ .high = 1, .low = 1, },
{ .high = 1, .low = 0, },
{ .high = 1, .low = -1, },
{ .high = 0, .low = -1, },
{ .high = -1, .low = -1, },
{ .high = -1, .low = 0, },
{ .high = -1, .low = 1, },
{ .high = 0, .low = 1, },
};
struct b43legacy_lopair lowest_transition = {
.high = in_pair->high,
.low = in_pair->low,
};
struct b43legacy_lopair tmp_pair;
struct b43legacy_lopair transition;
int i = 12;
int state = 0;
int found_lower;
int j;
int begin;
int end;
u32 lowest_deviation;
u32 tmp;
/* Note that in_pair and out_pair can point to the same pair.
* Be careful. */
b43legacy_lo_write(dev, &lowest_transition);
lowest_deviation = b43legacy_phy_lo_g_singledeviation(dev, r27);
do {
found_lower = 0;
B43legacy_WARN_ON(!(state >= 0 && state <= 8));
if (state == 0) {
begin = 1;
end = 8;
} else if (state % 2 == 0) {
begin = state - 1;
end = state + 1;
} else {
begin = state - 2;
end = state + 2;
}
if (begin < 1)
begin += 8;
if (end > 8)
end -= 8;
j = begin;
tmp_pair.high = lowest_transition.high;
tmp_pair.low = lowest_transition.low;
while (1) {
B43legacy_WARN_ON(!(j >= 1 && j <= 8));
transition.high = tmp_pair.high +
transitions[j - 1].high;
transition.low = tmp_pair.low + transitions[j - 1].low;
if ((abs(transition.low) < 9)
&& (abs(transition.high) < 9)) {
b43legacy_lo_write(dev, &transition);
tmp = b43legacy_phy_lo_g_singledeviation(dev,
r27);
if (tmp < lowest_deviation) {
lowest_deviation = tmp;
state = j;
found_lower = 1;
lowest_transition.high =
transition.high;
lowest_transition.low = transition.low;
}
}
if (j == end)
break;
if (j == 8)
j = 1;
else
j++;
}
} while (i-- && found_lower);
out_pair->high = lowest_transition.high;
out_pair->low = lowest_transition.low;
}
/* Set the baseband attenuation value on chip. */
void b43legacy_phy_set_baseband_attenuation(struct b43legacy_wldev *dev,
u16 bbatt)
{
struct b43legacy_phy *phy = &dev->phy;
u16 value;
if (phy->analog == 0) {
value = (b43legacy_read16(dev, 0x03E6) & 0xFFF0);
value |= (bbatt & 0x000F);
b43legacy_write16(dev, 0x03E6, value);
return;
}
if (phy->analog > 1) {
value = b43legacy_phy_read(dev, 0x0060) & 0xFFC3;
value |= (bbatt << 2) & 0x003C;
} else {
value = b43legacy_phy_read(dev, 0x0060) & 0xFF87;
value |= (bbatt << 3) & 0x0078;
}
b43legacy_phy_write(dev, 0x0060, value);
}
/* http://bcm-specs.sipsolutions.net/LocalOscillator/Measure */
void b43legacy_phy_lo_g_measure(struct b43legacy_wldev *dev)
{
static const u8 pairorder[10] = { 3, 1, 5, 7, 9, 2, 0, 4, 6, 8 };
const int is_initializing = (b43legacy_status(dev)
< B43legacy_STAT_STARTED);
struct b43legacy_phy *phy = &dev->phy;
u16 h;
u16 i;
u16 oldi = 0;
u16 j;
struct b43legacy_lopair control;
struct b43legacy_lopair *tmp_control;
u16 tmp;
u16 regstack[16] = { 0 };
u8 oldchannel;
/* XXX: What are these? */
u8 r27 = 0;
u16 r31;
oldchannel = phy->channel;
/* Setup */
if (phy->gmode) {
regstack[0] = b43legacy_phy_read(dev, B43legacy_PHY_G_CRS);
regstack[1] = b43legacy_phy_read(dev, 0x0802);
b43legacy_phy_write(dev, B43legacy_PHY_G_CRS, regstack[0]
& 0x7FFF);
b43legacy_phy_write(dev, 0x0802, regstack[1] & 0xFFFC);
}
regstack[3] = b43legacy_read16(dev, 0x03E2);
b43legacy_write16(dev, 0x03E2, regstack[3] | 0x8000);
regstack[4] = b43legacy_read16(dev, B43legacy_MMIO_CHANNEL_EXT);
regstack[5] = b43legacy_phy_read(dev, 0x15);
regstack[6] = b43legacy_phy_read(dev, 0x2A);
regstack[7] = b43legacy_phy_read(dev, 0x35);
regstack[8] = b43legacy_phy_read(dev, 0x60);
regstack[9] = b43legacy_radio_read16(dev, 0x43);
regstack[10] = b43legacy_radio_read16(dev, 0x7A);
regstack[11] = b43legacy_radio_read16(dev, 0x52);
if (phy->gmode) {
regstack[12] = b43legacy_phy_read(dev, 0x0811);
regstack[13] = b43legacy_phy_read(dev, 0x0812);
regstack[14] = b43legacy_phy_read(dev, 0x0814);
regstack[15] = b43legacy_phy_read(dev, 0x0815);
}
b43legacy_radio_selectchannel(dev, 6, 0);
if (phy->gmode) {
b43legacy_phy_write(dev, B43legacy_PHY_G_CRS, regstack[0]
& 0x7FFF);
b43legacy_phy_write(dev, 0x0802, regstack[1] & 0xFFFC);
b43legacy_dummy_transmission(dev);
}
b43legacy_radio_write16(dev, 0x0043, 0x0006);
b43legacy_phy_set_baseband_attenuation(dev, 2);
b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT, 0x0000);
b43legacy_phy_write(dev, 0x002E, 0x007F);
b43legacy_phy_write(dev, 0x080F, 0x0078);
b43legacy_phy_write(dev, 0x0035, regstack[7] & ~(1 << 7));
b43legacy_radio_write16(dev, 0x007A, regstack[10] & 0xFFF0);
b43legacy_phy_write(dev, 0x002B, 0x0203);
b43legacy_phy_write(dev, 0x002A, 0x08A3);
if (phy->gmode) {
b43legacy_phy_write(dev, 0x0814, regstack[14] | 0x0003);
b43legacy_phy_write(dev, 0x0815, regstack[15] & 0xFFFC);
b43legacy_phy_write(dev, 0x0811, 0x01B3);
b43legacy_phy_write(dev, 0x0812, 0x00B2);
}
if (is_initializing)
b43legacy_phy_lo_g_measure_txctl2(dev);
b43legacy_phy_write(dev, 0x080F, 0x8078);
/* Measure */
control.low = 0;
control.high = 0;
for (h = 0; h < 10; h++) {
/* Loop over each possible RadioAttenuation (0-9) */
i = pairorder[h];
if (is_initializing) {
if (i == 3) {
control.low = 0;
control.high = 0;
} else if (((i % 2 == 1) && (oldi % 2 == 1)) ||
((i % 2 == 0) && (oldi % 2 == 0))) {
tmp_control = b43legacy_get_lopair(phy, oldi,
0);
memcpy(&control, tmp_control, sizeof(control));
} else {
tmp_control = b43legacy_get_lopair(phy, 3, 0);
memcpy(&control, tmp_control, sizeof(control));
}
}
/* Loop over each possible BasebandAttenuation/2 */
for (j = 0; j < 4; j++) {
if (is_initializing) {
tmp = i * 2 + j;
r27 = 0;
r31 = 0;
if (tmp > 14) {
r31 = 1;
if (tmp > 17)
r27 = 1;
if (tmp > 19)
r27 = 2;
}
} else {
tmp_control = b43legacy_get_lopair(phy, i,
j * 2);
if (!tmp_control->used)
continue;
memcpy(&control, tmp_control, sizeof(control));
r27 = 3;
r31 = 0;
}
b43legacy_radio_write16(dev, 0x43, i);
b43legacy_radio_write16(dev, 0x52, phy->txctl2);
udelay(10);
b43legacy_voluntary_preempt();
b43legacy_phy_set_baseband_attenuation(dev, j * 2);
tmp = (regstack[10] & 0xFFF0);
if (r31)
tmp |= 0x0008;
b43legacy_radio_write16(dev, 0x007A, tmp);
tmp_control = b43legacy_get_lopair(phy, i, j * 2);
b43legacy_phy_lo_g_state(dev, &control, tmp_control,
r27);
}
oldi = i;
}
/* Loop over each possible RadioAttenuation (10-13) */
for (i = 10; i < 14; i++) {
/* Loop over each possible BasebandAttenuation/2 */
for (j = 0; j < 4; j++) {
if (is_initializing) {
tmp_control = b43legacy_get_lopair(phy, i - 9,
j * 2);
memcpy(&control, tmp_control, sizeof(control));
/* FIXME: The next line is wrong, as the
* following if statement can never trigger. */
tmp = (i - 9) * 2 + j - 5;
r27 = 0;
r31 = 0;
if (tmp > 14) {
r31 = 1;
if (tmp > 17)
r27 = 1;
if (tmp > 19)
r27 = 2;
}
} else {
tmp_control = b43legacy_get_lopair(phy, i - 9,
j * 2);
if (!tmp_control->used)
continue;
memcpy(&control, tmp_control, sizeof(control));
r27 = 3;
r31 = 0;
}
b43legacy_radio_write16(dev, 0x43, i - 9);
/* FIXME: shouldn't txctl1 be zero in the next line
* and 3 in the loop above? */
b43legacy_radio_write16(dev, 0x52,
phy->txctl2
| (3/*txctl1*/ << 4));
udelay(10);
b43legacy_voluntary_preempt();
b43legacy_phy_set_baseband_attenuation(dev, j * 2);
tmp = (regstack[10] & 0xFFF0);
if (r31)
tmp |= 0x0008;
b43legacy_radio_write16(dev, 0x7A, tmp);
tmp_control = b43legacy_get_lopair(phy, i, j * 2);
b43legacy_phy_lo_g_state(dev, &control, tmp_control,
r27);
}
}
/* Restoration */
if (phy->gmode) {
b43legacy_phy_write(dev, 0x0015, 0xE300);
b43legacy_phy_write(dev, 0x0812, (r27 << 8) | 0xA0);
udelay(5);
b43legacy_phy_write(dev, 0x0812, (r27 << 8) | 0xA2);
udelay(2);
b43legacy_phy_write(dev, 0x0812, (r27 << 8) | 0xA3);
b43legacy_voluntary_preempt();
} else
b43legacy_phy_write(dev, 0x0015, r27 | 0xEFA0);
b43legacy_phy_lo_adjust(dev, is_initializing);
b43legacy_phy_write(dev, 0x002E, 0x807F);
if (phy->gmode)
b43legacy_phy_write(dev, 0x002F, 0x0202);
else
b43legacy_phy_write(dev, 0x002F, 0x0101);
b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT, regstack[4]);
b43legacy_phy_write(dev, 0x0015, regstack[5]);
b43legacy_phy_write(dev, 0x002A, regstack[6]);
b43legacy_phy_write(dev, 0x0035, regstack[7]);
b43legacy_phy_write(dev, 0x0060, regstack[8]);
b43legacy_radio_write16(dev, 0x0043, regstack[9]);
b43legacy_radio_write16(dev, 0x007A, regstack[10]);
regstack[11] &= 0x00F0;
regstack[11] |= (b43legacy_radio_read16(dev, 0x52) & 0x000F);
b43legacy_radio_write16(dev, 0x52, regstack[11]);
b43legacy_write16(dev, 0x03E2, regstack[3]);
if (phy->gmode) {
b43legacy_phy_write(dev, 0x0811, regstack[12]);
b43legacy_phy_write(dev, 0x0812, regstack[13]);
b43legacy_phy_write(dev, 0x0814, regstack[14]);
b43legacy_phy_write(dev, 0x0815, regstack[15]);
b43legacy_phy_write(dev, B43legacy_PHY_G_CRS, regstack[0]);
b43legacy_phy_write(dev, 0x0802, regstack[1]);
}
b43legacy_radio_selectchannel(dev, oldchannel, 1);
#ifdef CONFIG_B43LEGACY_DEBUG
{
/* Sanity check for all lopairs. */
for (i = 0; i < B43legacy_LO_COUNT; i++) {
tmp_control = phy->_lo_pairs + i;
if (tmp_control->low < -8 || tmp_control->low > 8 ||
tmp_control->high < -8 || tmp_control->high > 8)
b43legacywarn(dev->wl,
"WARNING: Invalid LOpair (low: %d, high:"
" %d, index: %d)\n",
tmp_control->low, tmp_control->high, i);
}
}
#endif /* CONFIG_B43LEGACY_DEBUG */
}
static
void b43legacy_phy_lo_mark_current_used(struct b43legacy_wldev *dev)
{
struct b43legacy_lopair *pair;
pair = b43legacy_current_lopair(dev);
pair->used = 1;
}
void b43legacy_phy_lo_mark_all_unused(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
struct b43legacy_lopair *pair;
int i;
for (i = 0; i < B43legacy_LO_COUNT; i++) {
pair = phy->_lo_pairs + i;
pair->used = 0;
}
}
/* http://bcm-specs.sipsolutions.net/EstimatePowerOut
* This function converts a TSSI value to dBm in Q5.2
*/
static s8 b43legacy_phy_estimate_power_out(struct b43legacy_wldev *dev, s8 tssi)
{
struct b43legacy_phy *phy = &dev->phy;
s8 dbm = 0;
s32 tmp;
tmp = phy->idle_tssi;
tmp += tssi;
tmp -= phy->savedpctlreg;
switch (phy->type) {
case B43legacy_PHYTYPE_B:
case B43legacy_PHYTYPE_G:
tmp = clamp_val(tmp, 0x00, 0x3F);
dbm = phy->tssi2dbm[tmp];
break;
default:
B43legacy_BUG_ON(1);
}
return dbm;
}
/* http://bcm-specs.sipsolutions.net/RecalculateTransmissionPower */
void b43legacy_phy_xmitpower(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
u16 tmp;
u16 txpower;
s8 v0;
s8 v1;
s8 v2;
s8 v3;
s8 average;
int max_pwr;
s16 desired_pwr;
s16 estimated_pwr;
s16 pwr_adjust;
s16 radio_att_delta;
s16 baseband_att_delta;
s16 radio_attenuation;
s16 baseband_attenuation;
if (phy->savedpctlreg == 0xFFFF)
return;
if ((dev->dev->bus->boardinfo.type == 0x0416) &&
is_bcm_board_vendor(dev))
return;
#ifdef CONFIG_B43LEGACY_DEBUG
if (phy->manual_txpower_control)
return;
#endif
B43legacy_BUG_ON(!(phy->type == B43legacy_PHYTYPE_B ||
phy->type == B43legacy_PHYTYPE_G));
tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x0058);
v0 = (s8)(tmp & 0x00FF);
v1 = (s8)((tmp & 0xFF00) >> 8);
tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x005A);
v2 = (s8)(tmp & 0x00FF);
v3 = (s8)((tmp & 0xFF00) >> 8);
tmp = 0;
if (v0 == 0x7F || v1 == 0x7F || v2 == 0x7F || v3 == 0x7F) {
tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
0x0070);
v0 = (s8)(tmp & 0x00FF);
v1 = (s8)((tmp & 0xFF00) >> 8);
tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
0x0072);
v2 = (s8)(tmp & 0x00FF);
v3 = (s8)((tmp & 0xFF00) >> 8);
if (v0 == 0x7F || v1 == 0x7F || v2 == 0x7F || v3 == 0x7F)
return;
v0 = (v0 + 0x20) & 0x3F;
v1 = (v1 + 0x20) & 0x3F;
v2 = (v2 + 0x20) & 0x3F;
v3 = (v3 + 0x20) & 0x3F;
tmp = 1;
}
b43legacy_radio_clear_tssi(dev);
average = (v0 + v1 + v2 + v3 + 2) / 4;
if (tmp && (b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x005E)
& 0x8))
average -= 13;
estimated_pwr = b43legacy_phy_estimate_power_out(dev, average);
max_pwr = dev->dev->bus->sprom.maxpwr_bg;
if ((dev->dev->bus->sprom.boardflags_lo
& B43legacy_BFL_PACTRL) &&
(phy->type == B43legacy_PHYTYPE_G))
max_pwr -= 0x3;
if (unlikely(max_pwr <= 0)) {
b43legacywarn(dev->wl, "Invalid max-TX-power value in SPROM."
"\n");
max_pwr = 74; /* fake it */
dev->dev->bus->sprom.maxpwr_bg = max_pwr;
}
/* Use regulatory information to get the maximum power.
* In the absence of such data from mac80211, we will use 20 dBm, which
* is the value for the EU, US, Canada, and most of the world.
* The regulatory maximum is reduced by the antenna gain (from sprom)
* and 1.5 dBm (a safety factor??). The result is in Q5.2 format
* which accounts for the factor of 4 */
#define REG_MAX_PWR 20
max_pwr = min(REG_MAX_PWR * 4
- dev->dev->bus->sprom.antenna_gain.ghz24.a0
- 0x6, max_pwr);
/* find the desired power in Q5.2 - power_level is in dBm
* and limit it - max_pwr is already in Q5.2 */
desired_pwr = clamp_val(phy->power_level << 2, 0, max_pwr);
if (b43legacy_debug(dev, B43legacy_DBG_XMITPOWER))
b43legacydbg(dev->wl, "Current TX power output: " Q52_FMT
" dBm, Desired TX power output: " Q52_FMT
" dBm\n", Q52_ARG(estimated_pwr),
Q52_ARG(desired_pwr));
/* Check if we need to adjust the current power. The factor of 2 is
* for damping */
pwr_adjust = (desired_pwr - estimated_pwr) / 2;
/* RF attenuation delta
* The minus sign is because lower attenuation => more power */
radio_att_delta = -(pwr_adjust + 7) >> 3;
/* Baseband attenuation delta */
baseband_att_delta = -(pwr_adjust >> 1) - (4 * radio_att_delta);
/* Do we need to adjust anything? */
if ((radio_att_delta == 0) && (baseband_att_delta == 0)) {
b43legacy_phy_lo_mark_current_used(dev);
return;
}
/* Calculate the new attenuation values. */
baseband_attenuation = phy->bbatt;
baseband_attenuation += baseband_att_delta;
radio_attenuation = phy->rfatt;
radio_attenuation += radio_att_delta;
/* Get baseband and radio attenuation values into permitted ranges.
* baseband 0-11, radio 0-9.
* Radio attenuation affects power level 4 times as much as baseband.
*/
if (radio_attenuation < 0) {
baseband_attenuation -= (4 * -radio_attenuation);
radio_attenuation = 0;
} else if (radio_attenuation > 9) {
baseband_attenuation += (4 * (radio_attenuation - 9));
radio_attenuation = 9;
} else {
while (baseband_attenuation < 0 && radio_attenuation > 0) {
baseband_attenuation += 4;
radio_attenuation--;
}
while (baseband_attenuation > 11 && radio_attenuation < 9) {
baseband_attenuation -= 4;
radio_attenuation++;
}
}
baseband_attenuation = clamp_val(baseband_attenuation, 0, 11);
txpower = phy->txctl1;
if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 2)) {
if (radio_attenuation <= 1) {
if (txpower == 0) {
txpower = 3;
radio_attenuation += 2;
baseband_attenuation += 2;
} else if (dev->dev->bus->sprom.boardflags_lo
& B43legacy_BFL_PACTRL) {
baseband_attenuation += 4 *
(radio_attenuation - 2);
radio_attenuation = 2;
}
} else if (radio_attenuation > 4 && txpower != 0) {
txpower = 0;
if (baseband_attenuation < 3) {
radio_attenuation -= 3;
baseband_attenuation += 2;
} else {
radio_attenuation -= 2;
baseband_attenuation -= 2;
}
}
}
/* Save the control values */
phy->txctl1 = txpower;
baseband_attenuation = clamp_val(baseband_attenuation, 0, 11);
radio_attenuation = clamp_val(radio_attenuation, 0, 9);
phy->rfatt = radio_attenuation;
phy->bbatt = baseband_attenuation;
/* Adjust the hardware */
b43legacy_phy_lock(dev);
b43legacy_radio_lock(dev);
b43legacy_radio_set_txpower_bg(dev, baseband_attenuation,
radio_attenuation, txpower);
b43legacy_phy_lo_mark_current_used(dev);
b43legacy_radio_unlock(dev);
b43legacy_phy_unlock(dev);
}
static inline
s32 b43legacy_tssi2dbm_ad(s32 num, s32 den)
{
if (num < 0)
return num/den;
else
return (num+den/2)/den;
}
static inline
s8 b43legacy_tssi2dbm_entry(s8 entry [], u8 index, s16 pab0, s16 pab1, s16 pab2)
{
s32 m1;
s32 m2;
s32 f = 256;
s32 q;
s32 delta;
s8 i = 0;
m1 = b43legacy_tssi2dbm_ad(16 * pab0 + index * pab1, 32);
m2 = max(b43legacy_tssi2dbm_ad(32768 + index * pab2, 256), 1);
do {
if (i > 15)
return -EINVAL;
q = b43legacy_tssi2dbm_ad(f * 4096 -
b43legacy_tssi2dbm_ad(m2 * f, 16) *
f, 2048);
delta = abs(q - f);
f = q;
i++;
} while (delta >= 2);
entry[index] = clamp_val(b43legacy_tssi2dbm_ad(m1 * f, 8192),
-127, 128);
return 0;
}
/* http://bcm-specs.sipsolutions.net/TSSI_to_DBM_Table */
int b43legacy_phy_init_tssi2dbm_table(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
s16 pab0;
s16 pab1;
s16 pab2;
u8 idx;
s8 *dyn_tssi2dbm;
B43legacy_WARN_ON(!(phy->type == B43legacy_PHYTYPE_B ||
phy->type == B43legacy_PHYTYPE_G));
pab0 = (s16)(dev->dev->bus->sprom.pa0b0);
pab1 = (s16)(dev->dev->bus->sprom.pa0b1);
pab2 = (s16)(dev->dev->bus->sprom.pa0b2);
if ((dev->dev->bus->chip_id == 0x4301) && (phy->radio_ver != 0x2050)) {
phy->idle_tssi = 0x34;
phy->tssi2dbm = b43legacy_tssi2dbm_b_table;
return 0;
}
if (pab0 != 0 && pab1 != 0 && pab2 != 0 &&
pab0 != -1 && pab1 != -1 && pab2 != -1) {
/* The pabX values are set in SPROM. Use them. */
if ((s8)dev->dev->bus->sprom.itssi_bg != 0 &&
(s8)dev->dev->bus->sprom.itssi_bg != -1)
phy->idle_tssi = (s8)(dev->dev->bus->sprom.
itssi_bg);
else
phy->idle_tssi = 62;
dyn_tssi2dbm = kmalloc(64, GFP_KERNEL);
if (dyn_tssi2dbm == NULL) {
b43legacyerr(dev->wl, "Could not allocate memory "
"for tssi2dbm table\n");
return -ENOMEM;
}
for (idx = 0; idx < 64; idx++)
if (b43legacy_tssi2dbm_entry(dyn_tssi2dbm, idx, pab0,
pab1, pab2)) {
phy->tssi2dbm = NULL;
b43legacyerr(dev->wl, "Could not generate "
"tssi2dBm table\n");
kfree(dyn_tssi2dbm);
return -ENODEV;
}
phy->tssi2dbm = dyn_tssi2dbm;
phy->dyn_tssi_tbl = 1;
} else {
/* pabX values not set in SPROM. */
switch (phy->type) {
case B43legacy_PHYTYPE_B:
phy->idle_tssi = 0x34;
phy->tssi2dbm = b43legacy_tssi2dbm_b_table;
break;
case B43legacy_PHYTYPE_G:
phy->idle_tssi = 0x34;
phy->tssi2dbm = b43legacy_tssi2dbm_g_table;
break;
}
}
return 0;
}
int b43legacy_phy_init(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
int err = -ENODEV;
switch (phy->type) {
case B43legacy_PHYTYPE_B:
switch (phy->rev) {
case 2:
b43legacy_phy_initb2(dev);
err = 0;
break;
case 4:
b43legacy_phy_initb4(dev);
err = 0;
break;
case 5:
b43legacy_phy_initb5(dev);
err = 0;
break;
case 6:
b43legacy_phy_initb6(dev);
err = 0;
break;
}
break;
case B43legacy_PHYTYPE_G:
b43legacy_phy_initg(dev);
err = 0;
break;
}
if (err)
b43legacyerr(dev->wl, "Unknown PHYTYPE found\n");
return err;
}
void b43legacy_phy_set_antenna_diversity(struct b43legacy_wldev *dev)
{
struct b43legacy_phy *phy = &dev->phy;
u16 antennadiv;
u16 offset;
u16 value;
u32 ucodeflags;
antennadiv = phy->antenna_diversity;
if (antennadiv == 0xFFFF)
antennadiv = 3;
B43legacy_WARN_ON(antennadiv > 3);
ucodeflags = b43legacy_shm_read32(dev, B43legacy_SHM_SHARED,
B43legacy_UCODEFLAGS_OFFSET);
b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
B43legacy_UCODEFLAGS_OFFSET,
ucodeflags & ~B43legacy_UCODEFLAG_AUTODIV);
switch (phy->type) {
case B43legacy_PHYTYPE_G:
offset = 0x0400;
if (antennadiv == 2)
value = (3/*automatic*/ << 7);
else
value = (antennadiv << 7);
b43legacy_phy_write(dev, offset + 1,
(b43legacy_phy_read(dev, offset + 1)
& 0x7E7F) | value);
if (antennadiv >= 2) {
if (antennadiv == 2)
value = (antennadiv << 7);
else
value = (0/*force0*/ << 7);
b43legacy_phy_write(dev, offset + 0x2B,
(b43legacy_phy_read(dev,
offset + 0x2B)
& 0xFEFF) | value);
}
if (phy->type == B43legacy_PHYTYPE_G) {
if (antennadiv >= 2)
b43legacy_phy_write(dev, 0x048C,
b43legacy_phy_read(dev,
0x048C) | 0x2000);
else
b43legacy_phy_write(dev, 0x048C,
b43legacy_phy_read(dev,
0x048C) & ~0x2000);
if (phy->rev >= 2) {
b43legacy_phy_write(dev, 0x0461,
b43legacy_phy_read(dev,
0x0461) | 0x0010);
b43legacy_phy_write(dev, 0x04AD,
(b43legacy_phy_read(dev,
0x04AD)
& 0x00FF) | 0x0015);
if (phy->rev == 2)
b43legacy_phy_write(dev, 0x0427,
0x0008);
else
b43legacy_phy_write(dev, 0x0427,
(b43legacy_phy_read(dev, 0x0427)
& 0x00FF) | 0x0008);
} else if (phy->rev >= 6)
b43legacy_phy_write(dev, 0x049B, 0x00DC);
} else {
if (phy->rev < 3)
b43legacy_phy_write(dev, 0x002B,
(b43legacy_phy_read(dev,
0x002B) & 0x00FF)
| 0x0024);
else {
b43legacy_phy_write(dev, 0x0061,
b43legacy_phy_read(dev,
0x0061) | 0x0010);
if (phy->rev == 3) {
b43legacy_phy_write(dev, 0x0093,
0x001D);
b43legacy_phy_write(dev, 0x0027,
0x0008);
} else {
b43legacy_phy_write(dev, 0x0093,
0x003A);
b43legacy_phy_write(dev, 0x0027,
(b43legacy_phy_read(dev, 0x0027)
& 0x00FF) | 0x0008);
}
}
}
break;
case B43legacy_PHYTYPE_B:
if (dev->dev->id.revision == 2)
value = (3/*automatic*/ << 7);
else
value = (antennadiv << 7);
b43legacy_phy_write(dev, 0x03E2,
(b43legacy_phy_read(dev, 0x03E2)
& 0xFE7F) | value);
break;
default:
B43legacy_WARN_ON(1);
}
if (antennadiv >= 2) {
ucodeflags = b43legacy_shm_read32(dev, B43legacy_SHM_SHARED,
B43legacy_UCODEFLAGS_OFFSET);
b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
B43legacy_UCODEFLAGS_OFFSET,
ucodeflags | B43legacy_UCODEFLAG_AUTODIV);
}
phy->antenna_diversity = antennadiv;
}
/* Set the PowerSavingControlBits.
* Bitvalues:
* 0 => unset the bit
* 1 => set the bit
* -1 => calculate the bit
*/
void b43legacy_power_saving_ctl_bits(struct b43legacy_wldev *dev,
int bit25, int bit26)
{
int i;
u32 status;
/* FIXME: Force 25 to off and 26 to on for now: */
bit25 = 0;
bit26 = 1;
if (bit25 == -1) {
/* TODO: If powersave is not off and FIXME is not set and we
* are not in adhoc and thus is not an AP and we arei
* associated, set bit 25 */
}
if (bit26 == -1) {
/* TODO: If the device is awake or this is an AP, or we are
* scanning, or FIXME, or we are associated, or FIXME,
* or the latest PS-Poll packet sent was successful,
* set bit26 */
}
status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
if (bit25)
status |= B43legacy_MACCTL_HWPS;
else
status &= ~B43legacy_MACCTL_HWPS;
if (bit26)
status |= B43legacy_MACCTL_AWAKE;
else
status &= ~B43legacy_MACCTL_AWAKE;
b43legacy_write32(dev, B43legacy_MMIO_MACCTL, status);
if (bit26 && dev->dev->id.revision >= 5) {
for (i = 0; i < 100; i++) {
if (b43legacy_shm_read32(dev, B43legacy_SHM_SHARED,
0x0040) != 4)
break;
udelay(10);
}
}
}
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