--- /dev/null
+/*
+
+ Broadcom B43legacy wireless driver
+
+ Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
+ Stefano Brivio <stefano.brivio@polimi.it>
+ Michael Buesch <m@bues.ch>
+ Danny van Dyk <kugelfang@gentoo.org>
+ Andreas Jaggi <andreas.jaggi@waterwave.ch>
+ Copyright (c) 2007 Larry Finger <Larry.Finger@lwfinger.net>
+
+ Some parts of the code in this file are derived from the ipw2200
+ driver Copyright(c) 2003 - 2004 Intel Corporation.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+
+*/
+
+#include <linux/delay.h>
+
+#include "b43legacy.h"
+#include "main.h"
+#include "phy.h"
+#include "radio.h"
+#include "ilt.h"
+
+
+/* Table for b43legacy_radio_calibrationvalue() */
+static const u16 rcc_table[16] = {
+ 0x0002, 0x0003, 0x0001, 0x000F,
+ 0x0006, 0x0007, 0x0005, 0x000F,
+ 0x000A, 0x000B, 0x0009, 0x000F,
+ 0x000E, 0x000F, 0x000D, 0x000F,
+};
+
+/* Reverse the bits of a 4bit value.
+ * Example: 1101 is flipped 1011
+ */
+static u16 flip_4bit(u16 value)
+{
+ u16 flipped = 0x0000;
+
+ B43legacy_BUG_ON(!((value & ~0x000F) == 0x0000));
+
+ flipped |= (value & 0x0001) << 3;
+ flipped |= (value & 0x0002) << 1;
+ flipped |= (value & 0x0004) >> 1;
+ flipped |= (value & 0x0008) >> 3;
+
+ return flipped;
+}
+
+/* Get the freq, as it has to be written to the device. */
+static inline
+u16 channel2freq_bg(u8 channel)
+{
+ /* Frequencies are given as frequencies_bg[index] + 2.4GHz
+ * Starting with channel 1
+ */
+ static const u16 frequencies_bg[14] = {
+ 12, 17, 22, 27,
+ 32, 37, 42, 47,
+ 52, 57, 62, 67,
+ 72, 84,
+ };
+
+ if (unlikely(channel < 1 || channel > 14)) {
+ printk(KERN_INFO "b43legacy: Channel %d is out of range\n",
+ channel);
+ dump_stack();
+ return 2412;
+ }
+
+ return frequencies_bg[channel - 1];
+}
+
+void b43legacy_radio_lock(struct b43legacy_wldev *dev)
+{
+ u32 status;
+
+ status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
+ B43legacy_WARN_ON(status & B43legacy_MACCTL_RADIOLOCK);
+ status |= B43legacy_MACCTL_RADIOLOCK;
+ b43legacy_write32(dev, B43legacy_MMIO_MACCTL, status);
+ mmiowb();
+ udelay(10);
+}
+
+void b43legacy_radio_unlock(struct b43legacy_wldev *dev)
+{
+ u32 status;
+
+ b43legacy_read16(dev, B43legacy_MMIO_PHY_VER); /* dummy read */
+ status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
+ B43legacy_WARN_ON(!(status & B43legacy_MACCTL_RADIOLOCK));
+ status &= ~B43legacy_MACCTL_RADIOLOCK;
+ b43legacy_write32(dev, B43legacy_MMIO_MACCTL, status);
+ mmiowb();
+}
+
+u16 b43legacy_radio_read16(struct b43legacy_wldev *dev, u16 offset)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+
+ switch (phy->type) {
+ case B43legacy_PHYTYPE_B:
+ if (phy->radio_ver == 0x2053) {
+ if (offset < 0x70)
+ offset += 0x80;
+ else if (offset < 0x80)
+ offset += 0x70;
+ } else if (phy->radio_ver == 0x2050)
+ offset |= 0x80;
+ else
+ B43legacy_WARN_ON(1);
+ break;
+ case B43legacy_PHYTYPE_G:
+ offset |= 0x80;
+ break;
+ default:
+ B43legacy_BUG_ON(1);
+ }
+
+ b43legacy_write16(dev, B43legacy_MMIO_RADIO_CONTROL, offset);
+ return b43legacy_read16(dev, B43legacy_MMIO_RADIO_DATA_LOW);
+}
+
+void b43legacy_radio_write16(struct b43legacy_wldev *dev, u16 offset, u16 val)
+{
+ b43legacy_write16(dev, B43legacy_MMIO_RADIO_CONTROL, offset);
+ mmiowb();
+ b43legacy_write16(dev, B43legacy_MMIO_RADIO_DATA_LOW, val);
+}
+
+static void b43legacy_set_all_gains(struct b43legacy_wldev *dev,
+ s16 first, s16 second, s16 third)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 i;
+ u16 start = 0x08;
+ u16 end = 0x18;
+ u16 offset = 0x0400;
+ u16 tmp;
+
+ if (phy->rev <= 1) {
+ offset = 0x5000;
+ start = 0x10;
+ end = 0x20;
+ }
+
+ for (i = 0; i < 4; i++)
+ b43legacy_ilt_write(dev, offset + i, first);
+
+ for (i = start; i < end; i++)
+ b43legacy_ilt_write(dev, offset + i, second);
+
+ if (third != -1) {
+ tmp = ((u16)third << 14) | ((u16)third << 6);
+ b43legacy_phy_write(dev, 0x04A0,
+ (b43legacy_phy_read(dev, 0x04A0) & 0xBFBF)
+ | tmp);
+ b43legacy_phy_write(dev, 0x04A1,
+ (b43legacy_phy_read(dev, 0x04A1) & 0xBFBF)
+ | tmp);
+ b43legacy_phy_write(dev, 0x04A2,
+ (b43legacy_phy_read(dev, 0x04A2) & 0xBFBF)
+ | tmp);
+ }
+ b43legacy_dummy_transmission(dev);
+}
+
+static void b43legacy_set_original_gains(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 i;
+ u16 tmp;
+ u16 offset = 0x0400;
+ u16 start = 0x0008;
+ u16 end = 0x0018;
+
+ if (phy->rev <= 1) {
+ offset = 0x5000;
+ start = 0x0010;
+ end = 0x0020;
+ }
+
+ for (i = 0; i < 4; i++) {
+ tmp = (i & 0xFFFC);
+ tmp |= (i & 0x0001) << 1;
+ tmp |= (i & 0x0002) >> 1;
+
+ b43legacy_ilt_write(dev, offset + i, tmp);
+ }
+
+ for (i = start; i < end; i++)
+ b43legacy_ilt_write(dev, offset + i, i - start);
+
+ b43legacy_phy_write(dev, 0x04A0,
+ (b43legacy_phy_read(dev, 0x04A0) & 0xBFBF)
+ | 0x4040);
+ b43legacy_phy_write(dev, 0x04A1,
+ (b43legacy_phy_read(dev, 0x04A1) & 0xBFBF)
+ | 0x4040);
+ b43legacy_phy_write(dev, 0x04A2,
+ (b43legacy_phy_read(dev, 0x04A2) & 0xBFBF)
+ | 0x4000);
+ b43legacy_dummy_transmission(dev);
+}
+
+/* Synthetic PU workaround */
+static void b43legacy_synth_pu_workaround(struct b43legacy_wldev *dev,
+ u8 channel)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+
+ might_sleep();
+
+ if (phy->radio_ver != 0x2050 || phy->radio_rev >= 6)
+ /* We do not need the workaround. */
+ return;
+
+ if (channel <= 10)
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL,
+ channel2freq_bg(channel + 4));
+ else
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL,
+ channel2freq_bg(channel));
+ msleep(1);
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL,
+ channel2freq_bg(channel));
+}
+
+u8 b43legacy_radio_aci_detect(struct b43legacy_wldev *dev, u8 channel)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u8 ret = 0;
+ u16 saved;
+ u16 rssi;
+ u16 temp;
+ int i;
+ int j = 0;
+
+ saved = b43legacy_phy_read(dev, 0x0403);
+ b43legacy_radio_selectchannel(dev, channel, 0);
+ b43legacy_phy_write(dev, 0x0403, (saved & 0xFFF8) | 5);
+ if (phy->aci_hw_rssi)
+ rssi = b43legacy_phy_read(dev, 0x048A) & 0x3F;
+ else
+ rssi = saved & 0x3F;
+ /* clamp temp to signed 5bit */
+ if (rssi > 32)
+ rssi -= 64;
+ for (i = 0; i < 100; i++) {
+ temp = (b43legacy_phy_read(dev, 0x047F) >> 8) & 0x3F;
+ if (temp > 32)
+ temp -= 64;
+ if (temp < rssi)
+ j++;
+ if (j >= 20)
+ ret = 1;
+ }
+ b43legacy_phy_write(dev, 0x0403, saved);
+
+ return ret;
+}
+
+u8 b43legacy_radio_aci_scan(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u8 ret[13];
+ unsigned int channel = phy->channel;
+ unsigned int i;
+ unsigned int j;
+ unsigned int start;
+ unsigned int end;
+
+ if (!((phy->type == B43legacy_PHYTYPE_G) && (phy->rev > 0)))
+ return 0;
+
+ b43legacy_phy_lock(dev);
+ b43legacy_radio_lock(dev);
+ b43legacy_phy_write(dev, 0x0802,
+ b43legacy_phy_read(dev, 0x0802) & 0xFFFC);
+ b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
+ b43legacy_phy_read(dev, B43legacy_PHY_G_CRS)
+ & 0x7FFF);
+ b43legacy_set_all_gains(dev, 3, 8, 1);
+
+ start = (channel - 5 > 0) ? channel - 5 : 1;
+ end = (channel + 5 < 14) ? channel + 5 : 13;
+
+ for (i = start; i <= end; i++) {
+ if (abs(channel - i) > 2)
+ ret[i-1] = b43legacy_radio_aci_detect(dev, i);
+ }
+ b43legacy_radio_selectchannel(dev, channel, 0);
+ b43legacy_phy_write(dev, 0x0802,
+ (b43legacy_phy_read(dev, 0x0802) & 0xFFFC)
+ | 0x0003);
+ b43legacy_phy_write(dev, 0x0403,
+ b43legacy_phy_read(dev, 0x0403) & 0xFFF8);
+ b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
+ b43legacy_phy_read(dev, B43legacy_PHY_G_CRS)
+ | 0x8000);
+ b43legacy_set_original_gains(dev);
+ for (i = 0; i < 13; i++) {
+ if (!ret[i])
+ continue;
+ end = (i + 5 < 13) ? i + 5 : 13;
+ for (j = i; j < end; j++)
+ ret[j] = 1;
+ }
+ b43legacy_radio_unlock(dev);
+ b43legacy_phy_unlock(dev);
+
+ return ret[channel - 1];
+}
+
+/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
+void b43legacy_nrssi_hw_write(struct b43legacy_wldev *dev, u16 offset, s16 val)
+{
+ b43legacy_phy_write(dev, B43legacy_PHY_NRSSILT_CTRL, offset);
+ mmiowb();
+ b43legacy_phy_write(dev, B43legacy_PHY_NRSSILT_DATA, (u16)val);
+}
+
+/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
+s16 b43legacy_nrssi_hw_read(struct b43legacy_wldev *dev, u16 offset)
+{
+ u16 val;
+
+ b43legacy_phy_write(dev, B43legacy_PHY_NRSSILT_CTRL, offset);
+ val = b43legacy_phy_read(dev, B43legacy_PHY_NRSSILT_DATA);
+
+ return (s16)val;
+}
+
+/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
+void b43legacy_nrssi_hw_update(struct b43legacy_wldev *dev, u16 val)
+{
+ u16 i;
+ s16 tmp;
+
+ for (i = 0; i < 64; i++) {
+ tmp = b43legacy_nrssi_hw_read(dev, i);
+ tmp -= val;
+ tmp = clamp_val(tmp, -32, 31);
+ b43legacy_nrssi_hw_write(dev, i, tmp);
+ }
+}
+
+/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
+void b43legacy_nrssi_mem_update(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ s16 i;
+ s16 delta;
+ s32 tmp;
+
+ delta = 0x1F - phy->nrssi[0];
+ for (i = 0; i < 64; i++) {
+ tmp = (i - delta) * phy->nrssislope;
+ tmp /= 0x10000;
+ tmp += 0x3A;
+ tmp = clamp_val(tmp, 0, 0x3F);
+ phy->nrssi_lt[i] = tmp;
+ }
+}
+
+static void b43legacy_calc_nrssi_offset(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 backup[20] = { 0 };
+ s16 v47F;
+ u16 i;
+ u16 saved = 0xFFFF;
+
+ backup[0] = b43legacy_phy_read(dev, 0x0001);
+ backup[1] = b43legacy_phy_read(dev, 0x0811);
+ backup[2] = b43legacy_phy_read(dev, 0x0812);
+ backup[3] = b43legacy_phy_read(dev, 0x0814);
+ backup[4] = b43legacy_phy_read(dev, 0x0815);
+ backup[5] = b43legacy_phy_read(dev, 0x005A);
+ backup[6] = b43legacy_phy_read(dev, 0x0059);
+ backup[7] = b43legacy_phy_read(dev, 0x0058);
+ backup[8] = b43legacy_phy_read(dev, 0x000A);
+ backup[9] = b43legacy_phy_read(dev, 0x0003);
+ backup[10] = b43legacy_radio_read16(dev, 0x007A);
+ backup[11] = b43legacy_radio_read16(dev, 0x0043);
+
+ b43legacy_phy_write(dev, 0x0429,
+ b43legacy_phy_read(dev, 0x0429) & 0x7FFF);
+ b43legacy_phy_write(dev, 0x0001,
+ (b43legacy_phy_read(dev, 0x0001) & 0x3FFF)
+ | 0x4000);
+ b43legacy_phy_write(dev, 0x0811,
+ b43legacy_phy_read(dev, 0x0811) | 0x000C);
+ b43legacy_phy_write(dev, 0x0812,
+ (b43legacy_phy_read(dev, 0x0812) & 0xFFF3)
+ | 0x0004);
+ b43legacy_phy_write(dev, 0x0802,
+ b43legacy_phy_read(dev, 0x0802) & ~(0x1 | 0x2));
+ if (phy->rev >= 6) {
+ backup[12] = b43legacy_phy_read(dev, 0x002E);
+ backup[13] = b43legacy_phy_read(dev, 0x002F);
+ backup[14] = b43legacy_phy_read(dev, 0x080F);
+ backup[15] = b43legacy_phy_read(dev, 0x0810);
+ backup[16] = b43legacy_phy_read(dev, 0x0801);
+ backup[17] = b43legacy_phy_read(dev, 0x0060);
+ backup[18] = b43legacy_phy_read(dev, 0x0014);
+ backup[19] = b43legacy_phy_read(dev, 0x0478);
+
+ b43legacy_phy_write(dev, 0x002E, 0);
+ b43legacy_phy_write(dev, 0x002F, 0);
+ b43legacy_phy_write(dev, 0x080F, 0);
+ b43legacy_phy_write(dev, 0x0810, 0);
+ b43legacy_phy_write(dev, 0x0478,
+ b43legacy_phy_read(dev, 0x0478) | 0x0100);
+ b43legacy_phy_write(dev, 0x0801,
+ b43legacy_phy_read(dev, 0x0801) | 0x0040);
+ b43legacy_phy_write(dev, 0x0060,
+ b43legacy_phy_read(dev, 0x0060) | 0x0040);
+ b43legacy_phy_write(dev, 0x0014,
+ b43legacy_phy_read(dev, 0x0014) | 0x0200);
+ }
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A) | 0x0070);
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A) | 0x0080);
+ udelay(30);
+
+ v47F = (s16)((b43legacy_phy_read(dev, 0x047F) >> 8) & 0x003F);
+ if (v47F >= 0x20)
+ v47F -= 0x40;
+ if (v47F == 31) {
+ for (i = 7; i >= 4; i--) {
+ b43legacy_radio_write16(dev, 0x007B, i);
+ udelay(20);
+ v47F = (s16)((b43legacy_phy_read(dev, 0x047F) >> 8)
+ & 0x003F);
+ if (v47F >= 0x20)
+ v47F -= 0x40;
+ if (v47F < 31 && saved == 0xFFFF)
+ saved = i;
+ }
+ if (saved == 0xFFFF)
+ saved = 4;
+ } else {
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A)
+ & 0x007F);
+ b43legacy_phy_write(dev, 0x0814,
+ b43legacy_phy_read(dev, 0x0814) | 0x0001);
+ b43legacy_phy_write(dev, 0x0815,
+ b43legacy_phy_read(dev, 0x0815) & 0xFFFE);
+ b43legacy_phy_write(dev, 0x0811,
+ b43legacy_phy_read(dev, 0x0811) | 0x000C);
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_phy_read(dev, 0x0812) | 0x000C);
+ b43legacy_phy_write(dev, 0x0811,
+ b43legacy_phy_read(dev, 0x0811) | 0x0030);
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_phy_read(dev, 0x0812) | 0x0030);
+ b43legacy_phy_write(dev, 0x005A, 0x0480);
+ b43legacy_phy_write(dev, 0x0059, 0x0810);
+ b43legacy_phy_write(dev, 0x0058, 0x000D);
+ if (phy->analog == 0)
+ b43legacy_phy_write(dev, 0x0003, 0x0122);
+ else
+ b43legacy_phy_write(dev, 0x000A,
+ b43legacy_phy_read(dev, 0x000A)
+ | 0x2000);
+ b43legacy_phy_write(dev, 0x0814,
+ b43legacy_phy_read(dev, 0x0814) | 0x0004);
+ b43legacy_phy_write(dev, 0x0815,
+ b43legacy_phy_read(dev, 0x0815) & 0xFFFB);
+ b43legacy_phy_write(dev, 0x0003,
+ (b43legacy_phy_read(dev, 0x0003) & 0xFF9F)
+ | 0x0040);
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A)
+ | 0x000F);
+ b43legacy_set_all_gains(dev, 3, 0, 1);
+ b43legacy_radio_write16(dev, 0x0043,
+ (b43legacy_radio_read16(dev, 0x0043)
+ & 0x00F0) | 0x000F);
+ udelay(30);
+ v47F = (s16)((b43legacy_phy_read(dev, 0x047F) >> 8) & 0x003F);
+ if (v47F >= 0x20)
+ v47F -= 0x40;
+ if (v47F == -32) {
+ for (i = 0; i < 4; i++) {
+ b43legacy_radio_write16(dev, 0x007B, i);
+ udelay(20);
+ v47F = (s16)((b43legacy_phy_read(dev, 0x047F) >>
+ 8) & 0x003F);
+ if (v47F >= 0x20)
+ v47F -= 0x40;
+ if (v47F > -31 && saved == 0xFFFF)
+ saved = i;
+ }
+ if (saved == 0xFFFF)
+ saved = 3;
+ } else
+ saved = 0;
+ }
+ b43legacy_radio_write16(dev, 0x007B, saved);
+
+ if (phy->rev >= 6) {
+ b43legacy_phy_write(dev, 0x002E, backup[12]);
+ b43legacy_phy_write(dev, 0x002F, backup[13]);
+ b43legacy_phy_write(dev, 0x080F, backup[14]);
+ b43legacy_phy_write(dev, 0x0810, backup[15]);
+ }
+ b43legacy_phy_write(dev, 0x0814, backup[3]);
+ b43legacy_phy_write(dev, 0x0815, backup[4]);
+ b43legacy_phy_write(dev, 0x005A, backup[5]);
+ b43legacy_phy_write(dev, 0x0059, backup[6]);
+ b43legacy_phy_write(dev, 0x0058, backup[7]);
+ b43legacy_phy_write(dev, 0x000A, backup[8]);
+ b43legacy_phy_write(dev, 0x0003, backup[9]);
+ b43legacy_radio_write16(dev, 0x0043, backup[11]);
+ b43legacy_radio_write16(dev, 0x007A, backup[10]);
+ b43legacy_phy_write(dev, 0x0802,
+ b43legacy_phy_read(dev, 0x0802) | 0x1 | 0x2);
+ b43legacy_phy_write(dev, 0x0429,
+ b43legacy_phy_read(dev, 0x0429) | 0x8000);
+ b43legacy_set_original_gains(dev);
+ if (phy->rev >= 6) {
+ b43legacy_phy_write(dev, 0x0801, backup[16]);
+ b43legacy_phy_write(dev, 0x0060, backup[17]);
+ b43legacy_phy_write(dev, 0x0014, backup[18]);
+ b43legacy_phy_write(dev, 0x0478, backup[19]);
+ }
+ b43legacy_phy_write(dev, 0x0001, backup[0]);
+ b43legacy_phy_write(dev, 0x0812, backup[2]);
+ b43legacy_phy_write(dev, 0x0811, backup[1]);
+}
+
+void b43legacy_calc_nrssi_slope(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 backup[18] = { 0 };
+ u16 tmp;
+ s16 nrssi0;
+ s16 nrssi1;
+
+ switch (phy->type) {
+ case B43legacy_PHYTYPE_B:
+ backup[0] = b43legacy_radio_read16(dev, 0x007A);
+ backup[1] = b43legacy_radio_read16(dev, 0x0052);
+ backup[2] = b43legacy_radio_read16(dev, 0x0043);
+ backup[3] = b43legacy_phy_read(dev, 0x0030);
+ backup[4] = b43legacy_phy_read(dev, 0x0026);
+ backup[5] = b43legacy_phy_read(dev, 0x0015);
+ backup[6] = b43legacy_phy_read(dev, 0x002A);
+ backup[7] = b43legacy_phy_read(dev, 0x0020);
+ backup[8] = b43legacy_phy_read(dev, 0x005A);
+ backup[9] = b43legacy_phy_read(dev, 0x0059);
+ backup[10] = b43legacy_phy_read(dev, 0x0058);
+ backup[11] = b43legacy_read16(dev, 0x03E2);
+ backup[12] = b43legacy_read16(dev, 0x03E6);
+ backup[13] = b43legacy_read16(dev, B43legacy_MMIO_CHANNEL_EXT);
+
+ tmp = b43legacy_radio_read16(dev, 0x007A);
+ tmp &= (phy->rev >= 5) ? 0x007F : 0x000F;
+ b43legacy_radio_write16(dev, 0x007A, tmp);
+ b43legacy_phy_write(dev, 0x0030, 0x00FF);
+ b43legacy_write16(dev, 0x03EC, 0x7F7F);
+ b43legacy_phy_write(dev, 0x0026, 0x0000);
+ b43legacy_phy_write(dev, 0x0015,
+ b43legacy_phy_read(dev, 0x0015) | 0x0020);
+ b43legacy_phy_write(dev, 0x002A, 0x08A3);
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A)
+ | 0x0080);
+
+ nrssi0 = (s16)b43legacy_phy_read(dev, 0x0027);
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A)
+ & 0x007F);
+ if (phy->analog >= 2)
+ b43legacy_write16(dev, 0x03E6, 0x0040);
+ else if (phy->analog == 0)
+ b43legacy_write16(dev, 0x03E6, 0x0122);
+ else
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT,
+ b43legacy_read16(dev,
+ B43legacy_MMIO_CHANNEL_EXT) & 0x2000);
+ b43legacy_phy_write(dev, 0x0020, 0x3F3F);
+ b43legacy_phy_write(dev, 0x0015, 0xF330);
+ b43legacy_radio_write16(dev, 0x005A, 0x0060);
+ b43legacy_radio_write16(dev, 0x0043,
+ b43legacy_radio_read16(dev, 0x0043)
+ & 0x00F0);
+ b43legacy_phy_write(dev, 0x005A, 0x0480);
+ b43legacy_phy_write(dev, 0x0059, 0x0810);
+ b43legacy_phy_write(dev, 0x0058, 0x000D);
+ udelay(20);
+
+ nrssi1 = (s16)b43legacy_phy_read(dev, 0x0027);
+ b43legacy_phy_write(dev, 0x0030, backup[3]);
+ b43legacy_radio_write16(dev, 0x007A, backup[0]);
+ b43legacy_write16(dev, 0x03E2, backup[11]);
+ b43legacy_phy_write(dev, 0x0026, backup[4]);
+ b43legacy_phy_write(dev, 0x0015, backup[5]);
+ b43legacy_phy_write(dev, 0x002A, backup[6]);
+ b43legacy_synth_pu_workaround(dev, phy->channel);
+ if (phy->analog != 0)
+ b43legacy_write16(dev, 0x03F4, backup[13]);
+
+ b43legacy_phy_write(dev, 0x0020, backup[7]);
+ b43legacy_phy_write(dev, 0x005A, backup[8]);
+ b43legacy_phy_write(dev, 0x0059, backup[9]);
+ b43legacy_phy_write(dev, 0x0058, backup[10]);
+ b43legacy_radio_write16(dev, 0x0052, backup[1]);
+ b43legacy_radio_write16(dev, 0x0043, backup[2]);
+
+ if (nrssi0 == nrssi1)
+ phy->nrssislope = 0x00010000;
+ else
+ phy->nrssislope = 0x00400000 / (nrssi0 - nrssi1);
+
+ if (nrssi0 <= -4) {
+ phy->nrssi[0] = nrssi0;
+ phy->nrssi[1] = nrssi1;
+ }
+ break;
+ case B43legacy_PHYTYPE_G:
+ if (phy->radio_rev >= 9)
+ return;
+ if (phy->radio_rev == 8)
+ b43legacy_calc_nrssi_offset(dev);
+
+ b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
+ b43legacy_phy_read(dev, B43legacy_PHY_G_CRS)
+ & 0x7FFF);
+ b43legacy_phy_write(dev, 0x0802,
+ b43legacy_phy_read(dev, 0x0802) & 0xFFFC);
+ backup[7] = b43legacy_read16(dev, 0x03E2);
+ b43legacy_write16(dev, 0x03E2,
+ b43legacy_read16(dev, 0x03E2) | 0x8000);
+ backup[0] = b43legacy_radio_read16(dev, 0x007A);
+ backup[1] = b43legacy_radio_read16(dev, 0x0052);
+ backup[2] = b43legacy_radio_read16(dev, 0x0043);
+ backup[3] = b43legacy_phy_read(dev, 0x0015);
+ backup[4] = b43legacy_phy_read(dev, 0x005A);
+ backup[5] = b43legacy_phy_read(dev, 0x0059);
+ backup[6] = b43legacy_phy_read(dev, 0x0058);
+ backup[8] = b43legacy_read16(dev, 0x03E6);
+ backup[9] = b43legacy_read16(dev, B43legacy_MMIO_CHANNEL_EXT);
+ if (phy->rev >= 3) {
+ backup[10] = b43legacy_phy_read(dev, 0x002E);
+ backup[11] = b43legacy_phy_read(dev, 0x002F);
+ backup[12] = b43legacy_phy_read(dev, 0x080F);
+ backup[13] = b43legacy_phy_read(dev,
+ B43legacy_PHY_G_LO_CONTROL);
+ backup[14] = b43legacy_phy_read(dev, 0x0801);
+ backup[15] = b43legacy_phy_read(dev, 0x0060);
+ backup[16] = b43legacy_phy_read(dev, 0x0014);
+ backup[17] = b43legacy_phy_read(dev, 0x0478);
+ b43legacy_phy_write(dev, 0x002E, 0);
+ b43legacy_phy_write(dev, B43legacy_PHY_G_LO_CONTROL, 0);
+ switch (phy->rev) {
+ case 4: case 6: case 7:
+ b43legacy_phy_write(dev, 0x0478,
+ b43legacy_phy_read(dev,
+ 0x0478) | 0x0100);
+ b43legacy_phy_write(dev, 0x0801,
+ b43legacy_phy_read(dev,
+ 0x0801) | 0x0040);
+ break;
+ case 3: case 5:
+ b43legacy_phy_write(dev, 0x0801,
+ b43legacy_phy_read(dev,
+ 0x0801) & 0xFFBF);
+ break;
+ }
+ b43legacy_phy_write(dev, 0x0060,
+ b43legacy_phy_read(dev, 0x0060)
+ | 0x0040);
+ b43legacy_phy_write(dev, 0x0014,
+ b43legacy_phy_read(dev, 0x0014)
+ | 0x0200);
+ }
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A)
+ | 0x0070);
+ b43legacy_set_all_gains(dev, 0, 8, 0);
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A)
+ & 0x00F7);
+ if (phy->rev >= 2) {
+ b43legacy_phy_write(dev, 0x0811,
+ (b43legacy_phy_read(dev, 0x0811)
+ & 0xFFCF) | 0x0030);
+ b43legacy_phy_write(dev, 0x0812,
+ (b43legacy_phy_read(dev, 0x0812)
+ & 0xFFCF) | 0x0010);
+ }
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A)
+ | 0x0080);
+ udelay(20);
+
+ nrssi0 = (s16)((b43legacy_phy_read(dev, 0x047F) >> 8) & 0x003F);
+ if (nrssi0 >= 0x0020)
+ nrssi0 -= 0x0040;
+
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A)
+ & 0x007F);
+ if (phy->analog >= 2)
+ b43legacy_phy_write(dev, 0x0003,
+ (b43legacy_phy_read(dev, 0x0003)
+ & 0xFF9F) | 0x0040);
+
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT,
+ b43legacy_read16(dev,
+ B43legacy_MMIO_CHANNEL_EXT) | 0x2000);
+ b43legacy_radio_write16(dev, 0x007A,
+ b43legacy_radio_read16(dev, 0x007A)
+ | 0x000F);
+ b43legacy_phy_write(dev, 0x0015, 0xF330);
+ if (phy->rev >= 2) {
+ b43legacy_phy_write(dev, 0x0812,
+ (b43legacy_phy_read(dev, 0x0812)
+ & 0xFFCF) | 0x0020);
+ b43legacy_phy_write(dev, 0x0811,
+ (b43legacy_phy_read(dev, 0x0811)
+ & 0xFFCF) | 0x0020);
+ }
+
+ b43legacy_set_all_gains(dev, 3, 0, 1);
+ if (phy->radio_rev == 8)
+ b43legacy_radio_write16(dev, 0x0043, 0x001F);
+ else {
+ tmp = b43legacy_radio_read16(dev, 0x0052) & 0xFF0F;
+ b43legacy_radio_write16(dev, 0x0052, tmp | 0x0060);
+ tmp = b43legacy_radio_read16(dev, 0x0043) & 0xFFF0;
+ b43legacy_radio_write16(dev, 0x0043, tmp | 0x0009);
+ }
+ b43legacy_phy_write(dev, 0x005A, 0x0480);
+ b43legacy_phy_write(dev, 0x0059, 0x0810);
+ b43legacy_phy_write(dev, 0x0058, 0x000D);
+ udelay(20);
+ nrssi1 = (s16)((b43legacy_phy_read(dev, 0x047F) >> 8) & 0x003F);
+ if (nrssi1 >= 0x0020)
+ nrssi1 -= 0x0040;
+ if (nrssi0 == nrssi1)
+ phy->nrssislope = 0x00010000;
+ else
+ phy->nrssislope = 0x00400000 / (nrssi0 - nrssi1);
+ if (nrssi0 >= -4) {
+ phy->nrssi[0] = nrssi1;
+ phy->nrssi[1] = nrssi0;
+ }
+ if (phy->rev >= 3) {
+ b43legacy_phy_write(dev, 0x002E, backup[10]);
+ b43legacy_phy_write(dev, 0x002F, backup[11]);
+ b43legacy_phy_write(dev, 0x080F, backup[12]);
+ b43legacy_phy_write(dev, B43legacy_PHY_G_LO_CONTROL,
+ backup[13]);
+ }
+ if (phy->rev >= 2) {
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_phy_read(dev, 0x0812)
+ & 0xFFCF);
+ b43legacy_phy_write(dev, 0x0811,
+ b43legacy_phy_read(dev, 0x0811)
+ & 0xFFCF);
+ }
+
+ b43legacy_radio_write16(dev, 0x007A, backup[0]);
+ b43legacy_radio_write16(dev, 0x0052, backup[1]);
+ b43legacy_radio_write16(dev, 0x0043, backup[2]);
+ b43legacy_write16(dev, 0x03E2, backup[7]);
+ b43legacy_write16(dev, 0x03E6, backup[8]);
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT, backup[9]);
+ b43legacy_phy_write(dev, 0x0015, backup[3]);
+ b43legacy_phy_write(dev, 0x005A, backup[4]);
+ b43legacy_phy_write(dev, 0x0059, backup[5]);
+ b43legacy_phy_write(dev, 0x0058, backup[6]);
+ b43legacy_synth_pu_workaround(dev, phy->channel);
+ b43legacy_phy_write(dev, 0x0802,
+ b43legacy_phy_read(dev, 0x0802) | 0x0003);
+ b43legacy_set_original_gains(dev);
+ b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
+ b43legacy_phy_read(dev, B43legacy_PHY_G_CRS)
+ | 0x8000);
+ if (phy->rev >= 3) {
+ b43legacy_phy_write(dev, 0x0801, backup[14]);
+ b43legacy_phy_write(dev, 0x0060, backup[15]);
+ b43legacy_phy_write(dev, 0x0014, backup[16]);
+ b43legacy_phy_write(dev, 0x0478, backup[17]);
+ }
+ b43legacy_nrssi_mem_update(dev);
+ b43legacy_calc_nrssi_threshold(dev);
+ break;
+ default:
+ B43legacy_BUG_ON(1);
+ }
+}
+
+void b43legacy_calc_nrssi_threshold(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ s32 threshold;
+ s32 a;
+ s32 b;
+ s16 tmp16;
+ u16 tmp_u16;
+
+ switch (phy->type) {
+ case B43legacy_PHYTYPE_B: {
+ if (phy->radio_ver != 0x2050)
+ return;
+ if (!(dev->dev->bus->sprom.boardflags_lo &
+ B43legacy_BFL_RSSI))
+ return;
+
+ if (phy->radio_rev >= 6) {
+ threshold = (phy->nrssi[1] - phy->nrssi[0]) * 32;
+ threshold += 20 * (phy->nrssi[0] + 1);
+ threshold /= 40;
+ } else
+ threshold = phy->nrssi[1] - 5;
+
+ threshold = clamp_val(threshold, 0, 0x3E);
+ b43legacy_phy_read(dev, 0x0020); /* dummy read */
+ b43legacy_phy_write(dev, 0x0020, (((u16)threshold) << 8)
+ | 0x001C);
+
+ if (phy->radio_rev >= 6) {
+ b43legacy_phy_write(dev, 0x0087, 0x0E0D);
+ b43legacy_phy_write(dev, 0x0086, 0x0C0B);
+ b43legacy_phy_write(dev, 0x0085, 0x0A09);
+ b43legacy_phy_write(dev, 0x0084, 0x0808);
+ b43legacy_phy_write(dev, 0x0083, 0x0808);
+ b43legacy_phy_write(dev, 0x0082, 0x0604);
+ b43legacy_phy_write(dev, 0x0081, 0x0302);
+ b43legacy_phy_write(dev, 0x0080, 0x0100);
+ }
+ break;
+ }
+ case B43legacy_PHYTYPE_G:
+ if (!phy->gmode ||
+ !(dev->dev->bus->sprom.boardflags_lo &
+ B43legacy_BFL_RSSI)) {
+ tmp16 = b43legacy_nrssi_hw_read(dev, 0x20);
+ if (tmp16 >= 0x20)
+ tmp16 -= 0x40;
+ if (tmp16 < 3)
+ b43legacy_phy_write(dev, 0x048A,
+ (b43legacy_phy_read(dev,
+ 0x048A) & 0xF000) | 0x09EB);
+ else
+ b43legacy_phy_write(dev, 0x048A,
+ (b43legacy_phy_read(dev,
+ 0x048A) & 0xF000) | 0x0AED);
+ } else {
+ if (phy->interfmode ==
+ B43legacy_RADIO_INTERFMODE_NONWLAN) {
+ a = 0xE;
+ b = 0xA;
+ } else if (!phy->aci_wlan_automatic &&
+ phy->aci_enable) {
+ a = 0x13;
+ b = 0x12;
+ } else {
+ a = 0xE;
+ b = 0x11;
+ }
+
+ a = a * (phy->nrssi[1] - phy->nrssi[0]);
+ a += (phy->nrssi[0] << 6);
+ if (a < 32)
+ a += 31;
+ else
+ a += 32;
+ a = a >> 6;
+ a = clamp_val(a, -31, 31);
+
+ b = b * (phy->nrssi[1] - phy->nrssi[0]);
+ b += (phy->nrssi[0] << 6);
+ if (b < 32)
+ b += 31;
+ else
+ b += 32;
+ b = b >> 6;
+ b = clamp_val(b, -31, 31);
+
+ tmp_u16 = b43legacy_phy_read(dev, 0x048A) & 0xF000;
+ tmp_u16 |= ((u32)b & 0x0000003F);
+ tmp_u16 |= (((u32)a & 0x0000003F) << 6);
+ b43legacy_phy_write(dev, 0x048A, tmp_u16);
+ }
+ break;
+ default:
+ B43legacy_BUG_ON(1);
+ }
+}
+
+/* Stack implementation to save/restore values from the
+ * interference mitigation code.
+ * It is save to restore values in random order.
+ */
+static void _stack_save(u32 *_stackptr, size_t *stackidx,
+ u8 id, u16 offset, u16 value)
+{
+ u32 *stackptr = &(_stackptr[*stackidx]);
+
+ B43legacy_WARN_ON(!((offset & 0xE000) == 0x0000));
+ B43legacy_WARN_ON(!((id & 0xF8) == 0x00));
+ *stackptr = offset;
+ *stackptr |= ((u32)id) << 13;
+ *stackptr |= ((u32)value) << 16;
+ (*stackidx)++;
+ B43legacy_WARN_ON(!(*stackidx < B43legacy_INTERFSTACK_SIZE));
+}
+
+static u16 _stack_restore(u32 *stackptr,
+ u8 id, u16 offset)
+{
+ size_t i;
+
+ B43legacy_WARN_ON(!((offset & 0xE000) == 0x0000));
+ B43legacy_WARN_ON(!((id & 0xF8) == 0x00));
+ for (i = 0; i < B43legacy_INTERFSTACK_SIZE; i++, stackptr++) {
+ if ((*stackptr & 0x00001FFF) != offset)
+ continue;
+ if (((*stackptr & 0x00007000) >> 13) != id)
+ continue;
+ return ((*stackptr & 0xFFFF0000) >> 16);
+ }
+ B43legacy_BUG_ON(1);
+
+ return 0;
+}
+
+#define phy_stacksave(offset) \
+ do { \
+ _stack_save(stack, &stackidx, 0x1, (offset), \
+ b43legacy_phy_read(dev, (offset))); \
+ } while (0)
+#define phy_stackrestore(offset) \
+ do { \
+ b43legacy_phy_write(dev, (offset), \
+ _stack_restore(stack, 0x1, \
+ (offset))); \
+ } while (0)
+#define radio_stacksave(offset) \
+ do { \
+ _stack_save(stack, &stackidx, 0x2, (offset), \
+ b43legacy_radio_read16(dev, (offset))); \
+ } while (0)
+#define radio_stackrestore(offset) \
+ do { \
+ b43legacy_radio_write16(dev, (offset), \
+ _stack_restore(stack, 0x2, \
+ (offset))); \
+ } while (0)
+#define ilt_stacksave(offset) \
+ do { \
+ _stack_save(stack, &stackidx, 0x3, (offset), \
+ b43legacy_ilt_read(dev, (offset))); \
+ } while (0)
+#define ilt_stackrestore(offset) \
+ do { \
+ b43legacy_ilt_write(dev, (offset), \
+ _stack_restore(stack, 0x3, \
+ (offset))); \
+ } while (0)
+
+static void
+b43legacy_radio_interference_mitigation_enable(struct b43legacy_wldev *dev,
+ int mode)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 tmp;
+ u16 flipped;
+ u32 tmp32;
+ size_t stackidx = 0;
+ u32 *stack = phy->interfstack;
+
+ switch (mode) {
+ case B43legacy_RADIO_INTERFMODE_NONWLAN:
+ if (phy->rev != 1) {
+ b43legacy_phy_write(dev, 0x042B,
+ b43legacy_phy_read(dev, 0x042B)
+ | 0x0800);
+ b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
+ b43legacy_phy_read(dev,
+ B43legacy_PHY_G_CRS) & ~0x4000);
+ break;
+ }
+ radio_stacksave(0x0078);
+ tmp = (b43legacy_radio_read16(dev, 0x0078) & 0x001E);
+ flipped = flip_4bit(tmp);
+ if (flipped < 10 && flipped >= 8)
+ flipped = 7;
+ else if (flipped >= 10)
+ flipped -= 3;
+ flipped = flip_4bit(flipped);
+ flipped = (flipped << 1) | 0x0020;
+ b43legacy_radio_write16(dev, 0x0078, flipped);
+
+ b43legacy_calc_nrssi_threshold(dev);
+
+ phy_stacksave(0x0406);
+ b43legacy_phy_write(dev, 0x0406, 0x7E28);
+
+ b43legacy_phy_write(dev, 0x042B,
+ b43legacy_phy_read(dev, 0x042B) | 0x0800);
+ b43legacy_phy_write(dev, B43legacy_PHY_RADIO_BITFIELD,
+ b43legacy_phy_read(dev,
+ B43legacy_PHY_RADIO_BITFIELD) | 0x1000);
+
+ phy_stacksave(0x04A0);
+ b43legacy_phy_write(dev, 0x04A0,
+ (b43legacy_phy_read(dev, 0x04A0) & 0xC0C0)
+ | 0x0008);
+ phy_stacksave(0x04A1);
+ b43legacy_phy_write(dev, 0x04A1,
+ (b43legacy_phy_read(dev, 0x04A1) & 0xC0C0)
+ | 0x0605);
+ phy_stacksave(0x04A2);
+ b43legacy_phy_write(dev, 0x04A2,
+ (b43legacy_phy_read(dev, 0x04A2) & 0xC0C0)
+ | 0x0204);
+ phy_stacksave(0x04A8);
+ b43legacy_phy_write(dev, 0x04A8,
+ (b43legacy_phy_read(dev, 0x04A8) & 0xC0C0)
+ | 0x0803);
+ phy_stacksave(0x04AB);
+ b43legacy_phy_write(dev, 0x04AB,
+ (b43legacy_phy_read(dev, 0x04AB) & 0xC0C0)
+ | 0x0605);
+
+ phy_stacksave(0x04A7);
+ b43legacy_phy_write(dev, 0x04A7, 0x0002);
+ phy_stacksave(0x04A3);
+ b43legacy_phy_write(dev, 0x04A3, 0x287A);
+ phy_stacksave(0x04A9);
+ b43legacy_phy_write(dev, 0x04A9, 0x2027);
+ phy_stacksave(0x0493);
+ b43legacy_phy_write(dev, 0x0493, 0x32F5);
+ phy_stacksave(0x04AA);
+ b43legacy_phy_write(dev, 0x04AA, 0x2027);
+ phy_stacksave(0x04AC);
+ b43legacy_phy_write(dev, 0x04AC, 0x32F5);
+ break;
+ case B43legacy_RADIO_INTERFMODE_MANUALWLAN:
+ if (b43legacy_phy_read(dev, 0x0033) & 0x0800)
+ break;
+
+ phy->aci_enable = true;
+
+ phy_stacksave(B43legacy_PHY_RADIO_BITFIELD);
+ phy_stacksave(B43legacy_PHY_G_CRS);
+ if (phy->rev < 2)
+ phy_stacksave(0x0406);
+ else {
+ phy_stacksave(0x04C0);
+ phy_stacksave(0x04C1);
+ }
+ phy_stacksave(0x0033);
+ phy_stacksave(0x04A7);
+ phy_stacksave(0x04A3);
+ phy_stacksave(0x04A9);
+ phy_stacksave(0x04AA);
+ phy_stacksave(0x04AC);
+ phy_stacksave(0x0493);
+ phy_stacksave(0x04A1);
+ phy_stacksave(0x04A0);
+ phy_stacksave(0x04A2);
+ phy_stacksave(0x048A);
+ phy_stacksave(0x04A8);
+ phy_stacksave(0x04AB);
+ if (phy->rev == 2) {
+ phy_stacksave(0x04AD);
+ phy_stacksave(0x04AE);
+ } else if (phy->rev >= 3) {
+ phy_stacksave(0x04AD);
+ phy_stacksave(0x0415);
+ phy_stacksave(0x0416);
+ phy_stacksave(0x0417);
+ ilt_stacksave(0x1A00 + 0x2);
+ ilt_stacksave(0x1A00 + 0x3);
+ }
+ phy_stacksave(0x042B);
+ phy_stacksave(0x048C);
+
+ b43legacy_phy_write(dev, B43legacy_PHY_RADIO_BITFIELD,
+ b43legacy_phy_read(dev,
+ B43legacy_PHY_RADIO_BITFIELD) & ~0x1000);
+ b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
+ (b43legacy_phy_read(dev,
+ B43legacy_PHY_G_CRS)
+ & 0xFFFC) | 0x0002);
+
+ b43legacy_phy_write(dev, 0x0033, 0x0800);
+ b43legacy_phy_write(dev, 0x04A3, 0x2027);
+ b43legacy_phy_write(dev, 0x04A9, 0x1CA8);
+ b43legacy_phy_write(dev, 0x0493, 0x287A);
+ b43legacy_phy_write(dev, 0x04AA, 0x1CA8);
+ b43legacy_phy_write(dev, 0x04AC, 0x287A);
+
+ b43legacy_phy_write(dev, 0x04A0,
+ (b43legacy_phy_read(dev, 0x04A0)
+ & 0xFFC0) | 0x001A);
+ b43legacy_phy_write(dev, 0x04A7, 0x000D);
+
+ if (phy->rev < 2)
+ b43legacy_phy_write(dev, 0x0406, 0xFF0D);
+ else if (phy->rev == 2) {
+ b43legacy_phy_write(dev, 0x04C0, 0xFFFF);
+ b43legacy_phy_write(dev, 0x04C1, 0x00A9);
+ } else {
+ b43legacy_phy_write(dev, 0x04C0, 0x00C1);
+ b43legacy_phy_write(dev, 0x04C1, 0x0059);
+ }
+
+ b43legacy_phy_write(dev, 0x04A1,
+ (b43legacy_phy_read(dev, 0x04A1)
+ & 0xC0FF) | 0x1800);
+ b43legacy_phy_write(dev, 0x04A1,
+ (b43legacy_phy_read(dev, 0x04A1)
+ & 0xFFC0) | 0x0015);
+ b43legacy_phy_write(dev, 0x04A8,
+ (b43legacy_phy_read(dev, 0x04A8)
+ & 0xCFFF) | 0x1000);
+ b43legacy_phy_write(dev, 0x04A8,
+ (b43legacy_phy_read(dev, 0x04A8)
+ & 0xF0FF) | 0x0A00);
+ b43legacy_phy_write(dev, 0x04AB,
+ (b43legacy_phy_read(dev, 0x04AB)
+ & 0xCFFF) | 0x1000);
+ b43legacy_phy_write(dev, 0x04AB,
+ (b43legacy_phy_read(dev, 0x04AB)
+ & 0xF0FF) | 0x0800);
+ b43legacy_phy_write(dev, 0x04AB,
+ (b43legacy_phy_read(dev, 0x04AB)
+ & 0xFFCF) | 0x0010);
+ b43legacy_phy_write(dev, 0x04AB,
+ (b43legacy_phy_read(dev, 0x04AB)
+ & 0xFFF0) | 0x0005);
+ b43legacy_phy_write(dev, 0x04A8,
+ (b43legacy_phy_read(dev, 0x04A8)
+ & 0xFFCF) | 0x0010);
+ b43legacy_phy_write(dev, 0x04A8,
+ (b43legacy_phy_read(dev, 0x04A8)
+ & 0xFFF0) | 0x0006);
+ b43legacy_phy_write(dev, 0x04A2,
+ (b43legacy_phy_read(dev, 0x04A2)
+ & 0xF0FF) | 0x0800);
+ b43legacy_phy_write(dev, 0x04A0,
+ (b43legacy_phy_read(dev, 0x04A0)
+ & 0xF0FF) | 0x0500);
+ b43legacy_phy_write(dev, 0x04A2,
+ (b43legacy_phy_read(dev, 0x04A2)
+ & 0xFFF0) | 0x000B);
+
+ if (phy->rev >= 3) {
+ b43legacy_phy_write(dev, 0x048A,
+ b43legacy_phy_read(dev, 0x048A)
+ & ~0x8000);
+ b43legacy_phy_write(dev, 0x0415,
+ (b43legacy_phy_read(dev, 0x0415)
+ & 0x8000) | 0x36D8);
+ b43legacy_phy_write(dev, 0x0416,
+ (b43legacy_phy_read(dev, 0x0416)
+ & 0x8000) | 0x36D8);
+ b43legacy_phy_write(dev, 0x0417,
+ (b43legacy_phy_read(dev, 0x0417)
+ & 0xFE00) | 0x016D);
+ } else {
+ b43legacy_phy_write(dev, 0x048A,
+ b43legacy_phy_read(dev, 0x048A)
+ | 0x1000);
+ b43legacy_phy_write(dev, 0x048A,
+ (b43legacy_phy_read(dev, 0x048A)
+ & 0x9FFF) | 0x2000);
+ tmp32 = b43legacy_shm_read32(dev, B43legacy_SHM_SHARED,
+ B43legacy_UCODEFLAGS_OFFSET);
+ if (!(tmp32 & 0x800)) {
+ tmp32 |= 0x800;
+ b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
+ B43legacy_UCODEFLAGS_OFFSET,
+ tmp32);
+ }
+ }
+ if (phy->rev >= 2)
+ b43legacy_phy_write(dev, 0x042B,
+ b43legacy_phy_read(dev, 0x042B)
+ | 0x0800);
+ b43legacy_phy_write(dev, 0x048C,
+ (b43legacy_phy_read(dev, 0x048C)
+ & 0xF0FF) | 0x0200);
+ if (phy->rev == 2) {
+ b43legacy_phy_write(dev, 0x04AE,
+ (b43legacy_phy_read(dev, 0x04AE)
+ & 0xFF00) | 0x007F);
+ b43legacy_phy_write(dev, 0x04AD,
+ (b43legacy_phy_read(dev, 0x04AD)
+ & 0x00FF) | 0x1300);
+ } else if (phy->rev >= 6) {
+ b43legacy_ilt_write(dev, 0x1A00 + 0x3, 0x007F);
+ b43legacy_ilt_write(dev, 0x1A00 + 0x2, 0x007F);
+ b43legacy_phy_write(dev, 0x04AD,
+ b43legacy_phy_read(dev, 0x04AD)
+ & 0x00FF);
+ }
+ b43legacy_calc_nrssi_slope(dev);
+ break;
+ default:
+ B43legacy_BUG_ON(1);
+ }
+}
+
+static void
+b43legacy_radio_interference_mitigation_disable(struct b43legacy_wldev *dev,
+ int mode)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u32 tmp32;
+ u32 *stack = phy->interfstack;
+
+ switch (mode) {
+ case B43legacy_RADIO_INTERFMODE_NONWLAN:
+ if (phy->rev != 1) {
+ b43legacy_phy_write(dev, 0x042B,
+ b43legacy_phy_read(dev, 0x042B)
+ & ~0x0800);
+ b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
+ b43legacy_phy_read(dev,
+ B43legacy_PHY_G_CRS) | 0x4000);
+ break;
+ }
+ phy_stackrestore(0x0078);
+ b43legacy_calc_nrssi_threshold(dev);
+ phy_stackrestore(0x0406);
+ b43legacy_phy_write(dev, 0x042B,
+ b43legacy_phy_read(dev, 0x042B) & ~0x0800);
+ if (!dev->bad_frames_preempt)
+ b43legacy_phy_write(dev, B43legacy_PHY_RADIO_BITFIELD,
+ b43legacy_phy_read(dev,
+ B43legacy_PHY_RADIO_BITFIELD)
+ & ~(1 << 11));
+ b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
+ b43legacy_phy_read(dev, B43legacy_PHY_G_CRS)
+ | 0x4000);
+ phy_stackrestore(0x04A0);
+ phy_stackrestore(0x04A1);
+ phy_stackrestore(0x04A2);
+ phy_stackrestore(0x04A8);
+ phy_stackrestore(0x04AB);
+ phy_stackrestore(0x04A7);
+ phy_stackrestore(0x04A3);
+ phy_stackrestore(0x04A9);
+ phy_stackrestore(0x0493);
+ phy_stackrestore(0x04AA);
+ phy_stackrestore(0x04AC);
+ break;
+ case B43legacy_RADIO_INTERFMODE_MANUALWLAN:
+ if (!(b43legacy_phy_read(dev, 0x0033) & 0x0800))
+ break;
+
+ phy->aci_enable = false;
+
+ phy_stackrestore(B43legacy_PHY_RADIO_BITFIELD);
+ phy_stackrestore(B43legacy_PHY_G_CRS);
+ phy_stackrestore(0x0033);
+ phy_stackrestore(0x04A3);
+ phy_stackrestore(0x04A9);
+ phy_stackrestore(0x0493);
+ phy_stackrestore(0x04AA);
+ phy_stackrestore(0x04AC);
+ phy_stackrestore(0x04A0);
+ phy_stackrestore(0x04A7);
+ if (phy->rev >= 2) {
+ phy_stackrestore(0x04C0);
+ phy_stackrestore(0x04C1);
+ } else
+ phy_stackrestore(0x0406);
+ phy_stackrestore(0x04A1);
+ phy_stackrestore(0x04AB);
+ phy_stackrestore(0x04A8);
+ if (phy->rev == 2) {
+ phy_stackrestore(0x04AD);
+ phy_stackrestore(0x04AE);
+ } else if (phy->rev >= 3) {
+ phy_stackrestore(0x04AD);
+ phy_stackrestore(0x0415);
+ phy_stackrestore(0x0416);
+ phy_stackrestore(0x0417);
+ ilt_stackrestore(0x1A00 + 0x2);
+ ilt_stackrestore(0x1A00 + 0x3);
+ }
+ phy_stackrestore(0x04A2);
+ phy_stackrestore(0x04A8);
+ phy_stackrestore(0x042B);
+ phy_stackrestore(0x048C);
+ tmp32 = b43legacy_shm_read32(dev, B43legacy_SHM_SHARED,
+ B43legacy_UCODEFLAGS_OFFSET);
+ if (tmp32 & 0x800) {
+ tmp32 &= ~0x800;
+ b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
+ B43legacy_UCODEFLAGS_OFFSET,
+ tmp32);
+ }
+ b43legacy_calc_nrssi_slope(dev);
+ break;
+ default:
+ B43legacy_BUG_ON(1);
+ }
+}
+
+#undef phy_stacksave
+#undef phy_stackrestore
+#undef radio_stacksave
+#undef radio_stackrestore
+#undef ilt_stacksave
+#undef ilt_stackrestore
+
+int b43legacy_radio_set_interference_mitigation(struct b43legacy_wldev *dev,
+ int mode)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ int currentmode;
+
+ if ((phy->type != B43legacy_PHYTYPE_G) ||
+ (phy->rev == 0) || (!phy->gmode))
+ return -ENODEV;
+
+ phy->aci_wlan_automatic = false;
+ switch (mode) {
+ case B43legacy_RADIO_INTERFMODE_AUTOWLAN:
+ phy->aci_wlan_automatic = true;
+ if (phy->aci_enable)
+ mode = B43legacy_RADIO_INTERFMODE_MANUALWLAN;
+ else
+ mode = B43legacy_RADIO_INTERFMODE_NONE;
+ break;
+ case B43legacy_RADIO_INTERFMODE_NONE:
+ case B43legacy_RADIO_INTERFMODE_NONWLAN:
+ case B43legacy_RADIO_INTERFMODE_MANUALWLAN:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ currentmode = phy->interfmode;
+ if (currentmode == mode)
+ return 0;
+ if (currentmode != B43legacy_RADIO_INTERFMODE_NONE)
+ b43legacy_radio_interference_mitigation_disable(dev,
+ currentmode);
+
+ if (mode == B43legacy_RADIO_INTERFMODE_NONE) {
+ phy->aci_enable = false;
+ phy->aci_hw_rssi = false;
+ } else
+ b43legacy_radio_interference_mitigation_enable(dev, mode);
+ phy->interfmode = mode;
+
+ return 0;
+}
+
+u16 b43legacy_radio_calibrationvalue(struct b43legacy_wldev *dev)
+{
+ u16 reg;
+ u16 index;
+ u16 ret;
+
+ reg = b43legacy_radio_read16(dev, 0x0060);
+ index = (reg & 0x001E) >> 1;
+ ret = rcc_table[index] << 1;
+ ret |= (reg & 0x0001);
+ ret |= 0x0020;
+
+ return ret;
+}
+
+#define LPD(L, P, D) (((L) << 2) | ((P) << 1) | ((D) << 0))
+static u16 b43legacy_get_812_value(struct b43legacy_wldev *dev, u8 lpd)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 loop_or = 0;
+ u16 adj_loopback_gain = phy->loopback_gain[0];
+ u8 loop;
+ u16 extern_lna_control;
+
+ if (!phy->gmode)
+ return 0;
+ if (!has_loopback_gain(phy)) {
+ if (phy->rev < 7 || !(dev->dev->bus->sprom.boardflags_lo
+ & B43legacy_BFL_EXTLNA)) {
+ switch (lpd) {
+ case LPD(0, 1, 1):
+ return 0x0FB2;
+ case LPD(0, 0, 1):
+ return 0x00B2;
+ case LPD(1, 0, 1):
+ return 0x30B2;
+ case LPD(1, 0, 0):
+ return 0x30B3;
+ default:
+ B43legacy_BUG_ON(1);
+ }
+ } else {
+ switch (lpd) {
+ case LPD(0, 1, 1):
+ return 0x8FB2;
+ case LPD(0, 0, 1):
+ return 0x80B2;
+ case LPD(1, 0, 1):
+ return 0x20B2;
+ case LPD(1, 0, 0):
+ return 0x20B3;
+ default:
+ B43legacy_BUG_ON(1);
+ }
+ }
+ } else {
+ if (phy->radio_rev == 8)
+ adj_loopback_gain += 0x003E;
+ else
+ adj_loopback_gain += 0x0026;
+ if (adj_loopback_gain >= 0x46) {
+ adj_loopback_gain -= 0x46;
+ extern_lna_control = 0x3000;
+ } else if (adj_loopback_gain >= 0x3A) {
+ adj_loopback_gain -= 0x3A;
+ extern_lna_control = 0x2000;
+ } else if (adj_loopback_gain >= 0x2E) {
+ adj_loopback_gain -= 0x2E;
+ extern_lna_control = 0x1000;
+ } else {
+ adj_loopback_gain -= 0x10;
+ extern_lna_control = 0x0000;
+ }
+ for (loop = 0; loop < 16; loop++) {
+ u16 tmp = adj_loopback_gain - 6 * loop;
+ if (tmp < 6)
+ break;
+ }
+
+ loop_or = (loop << 8) | extern_lna_control;
+ if (phy->rev >= 7 && dev->dev->bus->sprom.boardflags_lo
+ & B43legacy_BFL_EXTLNA) {
+ if (extern_lna_control)
+ loop_or |= 0x8000;
+ switch (lpd) {
+ case LPD(0, 1, 1):
+ return 0x8F92;
+ case LPD(0, 0, 1):
+ return (0x8092 | loop_or);
+ case LPD(1, 0, 1):
+ return (0x2092 | loop_or);
+ case LPD(1, 0, 0):
+ return (0x2093 | loop_or);
+ default:
+ B43legacy_BUG_ON(1);
+ }
+ } else {
+ switch (lpd) {
+ case LPD(0, 1, 1):
+ return 0x0F92;
+ case LPD(0, 0, 1):
+ case LPD(1, 0, 1):
+ return (0x0092 | loop_or);
+ case LPD(1, 0, 0):
+ return (0x0093 | loop_or);
+ default:
+ B43legacy_BUG_ON(1);
+ }
+ }
+ }
+ return 0;
+}
+
+u16 b43legacy_radio_init2050(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 backup[21] = { 0 };
+ u16 ret;
+ u16 i;
+ u16 j;
+ u32 tmp1 = 0;
+ u32 tmp2 = 0;
+
+ backup[0] = b43legacy_radio_read16(dev, 0x0043);
+ backup[14] = b43legacy_radio_read16(dev, 0x0051);
+ backup[15] = b43legacy_radio_read16(dev, 0x0052);
+ backup[1] = b43legacy_phy_read(dev, 0x0015);
+ backup[16] = b43legacy_phy_read(dev, 0x005A);
+ backup[17] = b43legacy_phy_read(dev, 0x0059);
+ backup[18] = b43legacy_phy_read(dev, 0x0058);
+ if (phy->type == B43legacy_PHYTYPE_B) {
+ backup[2] = b43legacy_phy_read(dev, 0x0030);
+ backup[3] = b43legacy_read16(dev, 0x03EC);
+ b43legacy_phy_write(dev, 0x0030, 0x00FF);
+ b43legacy_write16(dev, 0x03EC, 0x3F3F);
+ } else {
+ if (phy->gmode) {
+ backup[4] = b43legacy_phy_read(dev, 0x0811);
+ backup[5] = b43legacy_phy_read(dev, 0x0812);
+ backup[6] = b43legacy_phy_read(dev, 0x0814);
+ backup[7] = b43legacy_phy_read(dev, 0x0815);
+ backup[8] = b43legacy_phy_read(dev,
+ B43legacy_PHY_G_CRS);
+ backup[9] = b43legacy_phy_read(dev, 0x0802);
+ b43legacy_phy_write(dev, 0x0814,
+ (b43legacy_phy_read(dev, 0x0814)
+ | 0x0003));
+ b43legacy_phy_write(dev, 0x0815,
+ (b43legacy_phy_read(dev, 0x0815)
+ & 0xFFFC));
+ b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
+ (b43legacy_phy_read(dev,
+ B43legacy_PHY_G_CRS) & 0x7FFF));
+ b43legacy_phy_write(dev, 0x0802,
+ (b43legacy_phy_read(dev, 0x0802)
+ & 0xFFFC));
+ if (phy->rev > 1) { /* loopback gain enabled */
+ backup[19] = b43legacy_phy_read(dev, 0x080F);
+ backup[20] = b43legacy_phy_read(dev, 0x0810);
+ if (phy->rev >= 3)
+ b43legacy_phy_write(dev, 0x080F,
+ 0xC020);
+ else
+ b43legacy_phy_write(dev, 0x080F,
+ 0x8020);
+ b43legacy_phy_write(dev, 0x0810, 0x0000);
+ }
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_get_812_value(dev,
+ LPD(0, 1, 1)));
+ if (phy->rev < 7 ||
+ !(dev->dev->bus->sprom.boardflags_lo
+ & B43legacy_BFL_EXTLNA))
+ b43legacy_phy_write(dev, 0x0811, 0x01B3);
+ else
+ b43legacy_phy_write(dev, 0x0811, 0x09B3);
+ }
+ }
+ b43legacy_write16(dev, B43legacy_MMIO_PHY_RADIO,
+ (b43legacy_read16(dev, B43legacy_MMIO_PHY_RADIO)
+ | 0x8000));
+ backup[10] = b43legacy_phy_read(dev, 0x0035);
+ b43legacy_phy_write(dev, 0x0035,
+ (b43legacy_phy_read(dev, 0x0035) & 0xFF7F));
+ backup[11] = b43legacy_read16(dev, 0x03E6);
+ backup[12] = b43legacy_read16(dev, B43legacy_MMIO_CHANNEL_EXT);
+
+ /* Initialization */
+ if (phy->analog == 0)
+ b43legacy_write16(dev, 0x03E6, 0x0122);
+ else {
+ if (phy->analog >= 2)
+ b43legacy_phy_write(dev, 0x0003,
+ (b43legacy_phy_read(dev, 0x0003)
+ & 0xFFBF) | 0x0040);
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT,
+ (b43legacy_read16(dev,
+ B43legacy_MMIO_CHANNEL_EXT) | 0x2000));
+ }
+
+ ret = b43legacy_radio_calibrationvalue(dev);
+
+ if (phy->type == B43legacy_PHYTYPE_B)
+ b43legacy_radio_write16(dev, 0x0078, 0x0026);
+
+ if (phy->gmode)
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_get_812_value(dev,
+ LPD(0, 1, 1)));
+ b43legacy_phy_write(dev, 0x0015, 0xBFAF);
+ b43legacy_phy_write(dev, 0x002B, 0x1403);
+ if (phy->gmode)
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_get_812_value(dev,
+ LPD(0, 0, 1)));
+ b43legacy_phy_write(dev, 0x0015, 0xBFA0);
+ b43legacy_radio_write16(dev, 0x0051,
+ (b43legacy_radio_read16(dev, 0x0051)
+ | 0x0004));
+ if (phy->radio_rev == 8)
+ b43legacy_radio_write16(dev, 0x0043, 0x001F);
+ else {
+ b43legacy_radio_write16(dev, 0x0052, 0x0000);
+ b43legacy_radio_write16(dev, 0x0043,
+ (b43legacy_radio_read16(dev, 0x0043)
+ & 0xFFF0) | 0x0009);
+ }
+ b43legacy_phy_write(dev, 0x0058, 0x0000);
+
+ for (i = 0; i < 16; i++) {
+ b43legacy_phy_write(dev, 0x005A, 0x0480);
+ b43legacy_phy_write(dev, 0x0059, 0xC810);
+ b43legacy_phy_write(dev, 0x0058, 0x000D);
+ if (phy->gmode)
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_get_812_value(dev,
+ LPD(1, 0, 1)));
+ b43legacy_phy_write(dev, 0x0015, 0xAFB0);
+ udelay(10);
+ if (phy->gmode)
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_get_812_value(dev,
+ LPD(1, 0, 1)));
+ b43legacy_phy_write(dev, 0x0015, 0xEFB0);
+ udelay(10);
+ if (phy->gmode)
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_get_812_value(dev,
+ LPD(1, 0, 0)));
+ b43legacy_phy_write(dev, 0x0015, 0xFFF0);
+ udelay(20);
+ tmp1 += b43legacy_phy_read(dev, 0x002D);
+ b43legacy_phy_write(dev, 0x0058, 0x0000);
+ if (phy->gmode)
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_get_812_value(dev,
+ LPD(1, 0, 1)));
+ b43legacy_phy_write(dev, 0x0015, 0xAFB0);
+ }
+
+ tmp1++;
+ tmp1 >>= 9;
+ udelay(10);
+ b43legacy_phy_write(dev, 0x0058, 0x0000);
+
+ for (i = 0; i < 16; i++) {
+ b43legacy_radio_write16(dev, 0x0078, (flip_4bit(i) << 1)
+ | 0x0020);
+ backup[13] = b43legacy_radio_read16(dev, 0x0078);
+ udelay(10);
+ for (j = 0; j < 16; j++) {
+ b43legacy_phy_write(dev, 0x005A, 0x0D80);
+ b43legacy_phy_write(dev, 0x0059, 0xC810);
+ b43legacy_phy_write(dev, 0x0058, 0x000D);
+ if (phy->gmode)
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_get_812_value(dev,
+ LPD(1, 0, 1)));
+ b43legacy_phy_write(dev, 0x0015, 0xAFB0);
+ udelay(10);
+ if (phy->gmode)
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_get_812_value(dev,
+ LPD(1, 0, 1)));
+ b43legacy_phy_write(dev, 0x0015, 0xEFB0);
+ udelay(10);
+ if (phy->gmode)
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_get_812_value(dev,
+ LPD(1, 0, 0)));
+ b43legacy_phy_write(dev, 0x0015, 0xFFF0);
+ udelay(10);
+ tmp2 += b43legacy_phy_read(dev, 0x002D);
+ b43legacy_phy_write(dev, 0x0058, 0x0000);
+ if (phy->gmode)
+ b43legacy_phy_write(dev, 0x0812,
+ b43legacy_get_812_value(dev,
+ LPD(1, 0, 1)));
+ b43legacy_phy_write(dev, 0x0015, 0xAFB0);
+ }
+ tmp2++;
+ tmp2 >>= 8;
+ if (tmp1 < tmp2)
+ break;
+ }
+
+ /* Restore the registers */
+ b43legacy_phy_write(dev, 0x0015, backup[1]);
+ b43legacy_radio_write16(dev, 0x0051, backup[14]);
+ b43legacy_radio_write16(dev, 0x0052, backup[15]);
+ b43legacy_radio_write16(dev, 0x0043, backup[0]);
+ b43legacy_phy_write(dev, 0x005A, backup[16]);
+ b43legacy_phy_write(dev, 0x0059, backup[17]);
+ b43legacy_phy_write(dev, 0x0058, backup[18]);
+ b43legacy_write16(dev, 0x03E6, backup[11]);
+ if (phy->analog != 0)
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT, backup[12]);
+ b43legacy_phy_write(dev, 0x0035, backup[10]);
+ b43legacy_radio_selectchannel(dev, phy->channel, 1);
+ if (phy->type == B43legacy_PHYTYPE_B) {
+ b43legacy_phy_write(dev, 0x0030, backup[2]);
+ b43legacy_write16(dev, 0x03EC, backup[3]);
+ } else {
+ if (phy->gmode) {
+ b43legacy_write16(dev, B43legacy_MMIO_PHY_RADIO,
+ (b43legacy_read16(dev,
+ B43legacy_MMIO_PHY_RADIO) & 0x7FFF));
+ b43legacy_phy_write(dev, 0x0811, backup[4]);
+ b43legacy_phy_write(dev, 0x0812, backup[5]);
+ b43legacy_phy_write(dev, 0x0814, backup[6]);
+ b43legacy_phy_write(dev, 0x0815, backup[7]);
+ b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
+ backup[8]);
+ b43legacy_phy_write(dev, 0x0802, backup[9]);
+ if (phy->rev > 1) {
+ b43legacy_phy_write(dev, 0x080F, backup[19]);
+ b43legacy_phy_write(dev, 0x0810, backup[20]);
+ }
+ }
+ }
+ if (i >= 15)
+ ret = backup[13];
+
+ return ret;
+}
+
+static inline
+u16 freq_r3A_value(u16 frequency)
+{
+ u16 value;
+
+ if (frequency < 5091)
+ value = 0x0040;
+ else if (frequency < 5321)
+ value = 0x0000;
+ else if (frequency < 5806)
+ value = 0x0080;
+ else
+ value = 0x0040;
+
+ return value;
+}
+
+int b43legacy_radio_selectchannel(struct b43legacy_wldev *dev,
+ u8 channel,
+ int synthetic_pu_workaround)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+
+ if (channel == 0xFF) {
+ switch (phy->type) {
+ case B43legacy_PHYTYPE_B:
+ case B43legacy_PHYTYPE_G:
+ channel = B43legacy_RADIO_DEFAULT_CHANNEL_BG;
+ break;
+ default:
+ B43legacy_WARN_ON(1);
+ }
+ }
+
+/* TODO: Check if channel is valid - return -EINVAL if not */
+ if (synthetic_pu_workaround)
+ b43legacy_synth_pu_workaround(dev, channel);
+
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL,
+ channel2freq_bg(channel));
+
+ if (channel == 14) {
+ if (dev->dev->bus->sprom.country_code == 5) /* JAPAN) */
+ b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
+ B43legacy_UCODEFLAGS_OFFSET,
+ b43legacy_shm_read32(dev,
+ B43legacy_SHM_SHARED,
+ B43legacy_UCODEFLAGS_OFFSET)
+ & ~(1 << 7));
+ else
+ b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
+ B43legacy_UCODEFLAGS_OFFSET,
+ b43legacy_shm_read32(dev,
+ B43legacy_SHM_SHARED,
+ B43legacy_UCODEFLAGS_OFFSET)
+ | (1 << 7));
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT,
+ b43legacy_read16(dev,
+ B43legacy_MMIO_CHANNEL_EXT) | (1 << 11));
+ } else
+ b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT,
+ b43legacy_read16(dev,
+ B43legacy_MMIO_CHANNEL_EXT) & 0xF7BF);
+
+ phy->channel = channel;
+ /*XXX: Using the longer of 2 timeouts (8000 vs 2000 usecs). Specs states
+ * that 2000 usecs might suffice. */
+ msleep(8);
+
+ return 0;
+}
+
+void b43legacy_radio_set_txantenna(struct b43legacy_wldev *dev, u32 val)
+{
+ u16 tmp;
+
+ val <<= 8;
+ tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x0022) & 0xFCFF;
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0022, tmp | val);
+ tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x03A8) & 0xFCFF;
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x03A8, tmp | val);
+ tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x0054) & 0xFCFF;
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0054, tmp | val);
+}
+
+/* http://bcm-specs.sipsolutions.net/TX_Gain_Base_Band */
+static u16 b43legacy_get_txgain_base_band(u16 txpower)
+{
+ u16 ret;
+
+ B43legacy_WARN_ON(txpower > 63);
+
+ if (txpower >= 54)
+ ret = 2;
+ else if (txpower >= 49)
+ ret = 4;
+ else if (txpower >= 44)
+ ret = 5;
+ else
+ ret = 6;
+
+ return ret;
+}
+
+/* http://bcm-specs.sipsolutions.net/TX_Gain_Radio_Frequency_Power_Amplifier */
+static u16 b43legacy_get_txgain_freq_power_amp(u16 txpower)
+{
+ u16 ret;
+
+ B43legacy_WARN_ON(txpower > 63);
+
+ if (txpower >= 32)
+ ret = 0;
+ else if (txpower >= 25)
+ ret = 1;
+ else if (txpower >= 20)
+ ret = 2;
+ else if (txpower >= 12)
+ ret = 3;
+ else
+ ret = 4;
+
+ return ret;
+}
+
+/* http://bcm-specs.sipsolutions.net/TX_Gain_Digital_Analog_Converter */
+static u16 b43legacy_get_txgain_dac(u16 txpower)
+{
+ u16 ret;
+
+ B43legacy_WARN_ON(txpower > 63);
+
+ if (txpower >= 54)
+ ret = txpower - 53;
+ else if (txpower >= 49)
+ ret = txpower - 42;
+ else if (txpower >= 44)
+ ret = txpower - 37;
+ else if (txpower >= 32)
+ ret = txpower - 32;
+ else if (txpower >= 25)
+ ret = txpower - 20;
+ else if (txpower >= 20)
+ ret = txpower - 13;
+ else if (txpower >= 12)
+ ret = txpower - 8;
+ else
+ ret = txpower;
+
+ return ret;
+}
+
+void b43legacy_radio_set_txpower_a(struct b43legacy_wldev *dev, u16 txpower)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 pamp;
+ u16 base;
+ u16 dac;
+ u16 ilt;
+
+ txpower = clamp_val(txpower, 0, 63);
+
+ pamp = b43legacy_get_txgain_freq_power_amp(txpower);
+ pamp <<= 5;
+ pamp &= 0x00E0;
+ b43legacy_phy_write(dev, 0x0019, pamp);
+
+ base = b43legacy_get_txgain_base_band(txpower);
+ base &= 0x000F;
+ b43legacy_phy_write(dev, 0x0017, base | 0x0020);
+
+ ilt = b43legacy_ilt_read(dev, 0x3001);
+ ilt &= 0x0007;
+
+ dac = b43legacy_get_txgain_dac(txpower);
+ dac <<= 3;
+ dac |= ilt;
+
+ b43legacy_ilt_write(dev, 0x3001, dac);
+
+ phy->txpwr_offset = txpower;
+
+ /* TODO: FuncPlaceholder (Adjust BB loft cancel) */
+}
+
+void b43legacy_radio_set_txpower_bg(struct b43legacy_wldev *dev,
+ u16 baseband_attenuation,
+ u16 radio_attenuation,
+ u16 txpower)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+
+ if (baseband_attenuation == 0xFFFF)
+ baseband_attenuation = phy->bbatt;
+ if (radio_attenuation == 0xFFFF)
+ radio_attenuation = phy->rfatt;
+ if (txpower == 0xFFFF)
+ txpower = phy->txctl1;
+ phy->bbatt = baseband_attenuation;
+ phy->rfatt = radio_attenuation;
+ phy->txctl1 = txpower;
+
+ B43legacy_WARN_ON(baseband_attenuation > 11);
+ if (phy->radio_rev < 6)
+ B43legacy_WARN_ON(radio_attenuation > 9);
+ else
+ B43legacy_WARN_ON(radio_attenuation > 31);
+ B43legacy_WARN_ON(txpower > 7);
+
+ b43legacy_phy_set_baseband_attenuation(dev, baseband_attenuation);
+ b43legacy_radio_write16(dev, 0x0043, radio_attenuation);
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0064,
+ radio_attenuation);
+ if (phy->radio_ver == 0x2050)
+ b43legacy_radio_write16(dev, 0x0052,
+ (b43legacy_radio_read16(dev, 0x0052)
+ & ~0x0070) | ((txpower << 4) & 0x0070));
+ /* FIXME: The spec is very weird and unclear here. */
+ if (phy->type == B43legacy_PHYTYPE_G)
+ b43legacy_phy_lo_adjust(dev, 0);
+}
+
+u16 b43legacy_default_baseband_attenuation(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+
+ if (phy->radio_ver == 0x2050 && phy->radio_rev < 6)
+ return 0;
+ return 2;
+}
+
+u16 b43legacy_default_radio_attenuation(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ u16 att = 0xFFFF;
+
+ switch (phy->radio_ver) {
+ case 0x2053:
+ switch (phy->radio_rev) {
+ case 1:
+ att = 6;
+ break;
+ }
+ break;
+ case 0x2050:
+ switch (phy->radio_rev) {
+ case 0:
+ att = 5;
+ break;
+ case 1:
+ if (phy->type == B43legacy_PHYTYPE_G) {
+ if (is_bcm_board_vendor(dev) &&
+ dev->dev->bus->boardinfo.type == 0x421 &&
+ dev->dev->bus->sprom.board_rev >= 30)
+ att = 3;
+ else if (is_bcm_board_vendor(dev) &&
+ dev->dev->bus->boardinfo.type == 0x416)
+ att = 3;
+ else
+ att = 1;
+ } else {
+ if (is_bcm_board_vendor(dev) &&
+ dev->dev->bus->boardinfo.type == 0x421 &&
+ dev->dev->bus->sprom.board_rev >= 30)
+ att = 7;
+ else
+ att = 6;
+ }
+ break;
+ case 2:
+ if (phy->type == B43legacy_PHYTYPE_G) {
+ if (is_bcm_board_vendor(dev) &&
+ dev->dev->bus->boardinfo.type == 0x421 &&
+ dev->dev->bus->sprom.board_rev >= 30)
+ att = 3;
+ else if (is_bcm_board_vendor(dev) &&
+ dev->dev->bus->boardinfo.type ==
+ 0x416)
+ att = 5;
+ else if (dev->dev->bus->chip_id == 0x4320)
+ att = 4;
+ else
+ att = 3;
+ } else
+ att = 6;
+ break;
+ case 3:
+ att = 5;
+ break;
+ case 4:
+ case 5:
+ att = 1;
+ break;
+ case 6:
+ case 7:
+ att = 5;
+ break;
+ case 8:
+ att = 0x1A;
+ break;
+ case 9:
+ default:
+ att = 5;
+ }
+ }
+ if (is_bcm_board_vendor(dev) &&
+ dev->dev->bus->boardinfo.type == 0x421) {
+ if (dev->dev->bus->sprom.board_rev < 0x43)
+ att = 2;
+ else if (dev->dev->bus->sprom.board_rev < 0x51)
+ att = 3;
+ }
+ if (att == 0xFFFF)
+ att = 5;
+
+ return att;
+}
+
+u16 b43legacy_default_txctl1(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+
+ if (phy->radio_ver != 0x2050)
+ return 0;
+ if (phy->radio_rev == 1)
+ return 3;
+ if (phy->radio_rev < 6)
+ return 2;
+ if (phy->radio_rev == 8)
+ return 1;
+ return 0;
+}
+
+void b43legacy_radio_turn_on(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ int err;
+ u8 channel;
+
+ might_sleep();
+
+ if (phy->radio_on)
+ return;
+
+ switch (phy->type) {
+ case B43legacy_PHYTYPE_B:
+ case B43legacy_PHYTYPE_G:
+ b43legacy_phy_write(dev, 0x0015, 0x8000);
+ b43legacy_phy_write(dev, 0x0015, 0xCC00);
+ b43legacy_phy_write(dev, 0x0015,
+ (phy->gmode ? 0x00C0 : 0x0000));
+ if (phy->radio_off_context.valid) {
+ /* Restore the RFover values. */
+ b43legacy_phy_write(dev, B43legacy_PHY_RFOVER,
+ phy->radio_off_context.rfover);
+ b43legacy_phy_write(dev, B43legacy_PHY_RFOVERVAL,
+ phy->radio_off_context.rfoverval);
+ phy->radio_off_context.valid = false;
+ }
+ channel = phy->channel;
+ err = b43legacy_radio_selectchannel(dev,
+ B43legacy_RADIO_DEFAULT_CHANNEL_BG, 1);
+ err |= b43legacy_radio_selectchannel(dev, channel, 0);
+ B43legacy_WARN_ON(err);
+ break;
+ default:
+ B43legacy_BUG_ON(1);
+ }
+ phy->radio_on = true;
+}
+
+void b43legacy_radio_turn_off(struct b43legacy_wldev *dev, bool force)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+
+ if (!phy->radio_on && !force)
+ return;
+
+ if (phy->type == B43legacy_PHYTYPE_G && dev->dev->id.revision >= 5) {
+ u16 rfover, rfoverval;
+
+ rfover = b43legacy_phy_read(dev, B43legacy_PHY_RFOVER);
+ rfoverval = b43legacy_phy_read(dev, B43legacy_PHY_RFOVERVAL);
+ if (!force) {
+ phy->radio_off_context.rfover = rfover;
+ phy->radio_off_context.rfoverval = rfoverval;
+ phy->radio_off_context.valid = true;
+ }
+ b43legacy_phy_write(dev, B43legacy_PHY_RFOVER, rfover | 0x008C);
+ b43legacy_phy_write(dev, B43legacy_PHY_RFOVERVAL,
+ rfoverval & 0xFF73);
+ } else
+ b43legacy_phy_write(dev, 0x0015, 0xAA00);
+ phy->radio_on = false;
+ b43legacydbg(dev->wl, "Radio initialized\n");
+}
+
+void b43legacy_radio_clear_tssi(struct b43legacy_wldev *dev)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+
+ switch (phy->type) {
+ case B43legacy_PHYTYPE_B:
+ case B43legacy_PHYTYPE_G:
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0058,
+ 0x7F7F);
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x005a,
+ 0x7F7F);
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0070,
+ 0x7F7F);
+ b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0072,
+ 0x7F7F);
+ break;
+ }
+}
Code Review / kvmfornfv.git / blobdiff