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/*
Broadcom B43 wireless driver
IEEE 802.11n PHY support
Copyright (c) 2008 Michael Buesch <mb@bu3sch.de>
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/types.h>
#include "b43.h"
#include "nphy.h"
#include "tables_nphy.h"
void b43_nphy_set_rxantenna(struct b43_wldev *dev, int antenna)
{//TODO
}
void b43_nphy_xmitpower(struct b43_wldev *dev)
{//TODO
}
static void b43_chantab_radio_upload(struct b43_wldev *dev,
const struct b43_nphy_channeltab_entry *e)
{
b43_radio_write16(dev, B2055_PLL_REF, e->radio_pll_ref);
b43_radio_write16(dev, B2055_RF_PLLMOD0, e->radio_rf_pllmod0);
b43_radio_write16(dev, B2055_RF_PLLMOD1, e->radio_rf_pllmod1);
b43_radio_write16(dev, B2055_VCO_CAPTAIL, e->radio_vco_captail);
b43_radio_write16(dev, B2055_VCO_CAL1, e->radio_vco_cal1);
b43_radio_write16(dev, B2055_VCO_CAL2, e->radio_vco_cal2);
b43_radio_write16(dev, B2055_PLL_LFC1, e->radio_pll_lfc1);
b43_radio_write16(dev, B2055_PLL_LFR1, e->radio_pll_lfr1);
b43_radio_write16(dev, B2055_PLL_LFC2, e->radio_pll_lfc2);
b43_radio_write16(dev, B2055_LGBUF_CENBUF, e->radio_lgbuf_cenbuf);
b43_radio_write16(dev, B2055_LGEN_TUNE1, e->radio_lgen_tune1);
b43_radio_write16(dev, B2055_LGEN_TUNE2, e->radio_lgen_tune2);
b43_radio_write16(dev, B2055_C1_LGBUF_ATUNE, e->radio_c1_lgbuf_atune);
b43_radio_write16(dev, B2055_C1_LGBUF_GTUNE, e->radio_c1_lgbuf_gtune);
b43_radio_write16(dev, B2055_C1_RX_RFR1, e->radio_c1_rx_rfr1);
b43_radio_write16(dev, B2055_C1_TX_PGAPADTN, e->radio_c1_tx_pgapadtn);
b43_radio_write16(dev, B2055_C1_TX_MXBGTRIM, e->radio_c1_tx_mxbgtrim);
b43_radio_write16(dev, B2055_C2_LGBUF_ATUNE, e->radio_c2_lgbuf_atune);
b43_radio_write16(dev, B2055_C2_LGBUF_GTUNE, e->radio_c2_lgbuf_gtune);
b43_radio_write16(dev, B2055_C2_RX_RFR1, e->radio_c2_rx_rfr1);
b43_radio_write16(dev, B2055_C2_TX_PGAPADTN, e->radio_c2_tx_pgapadtn);
b43_radio_write16(dev, B2055_C2_TX_MXBGTRIM, e->radio_c2_tx_mxbgtrim);
}
static void b43_chantab_phy_upload(struct b43_wldev *dev,
const struct b43_nphy_channeltab_entry *e)
{
b43_phy_write(dev, B43_NPHY_BW1A, e->phy_bw1a);
b43_phy_write(dev, B43_NPHY_BW2, e->phy_bw2);
b43_phy_write(dev, B43_NPHY_BW3, e->phy_bw3);
b43_phy_write(dev, B43_NPHY_BW4, e->phy_bw4);
b43_phy_write(dev, B43_NPHY_BW5, e->phy_bw5);
b43_phy_write(dev, B43_NPHY_BW6, e->phy_bw6);
}
static void b43_nphy_tx_power_fix(struct b43_wldev *dev)
{
//TODO
}
/* Tune the hardware to a new channel. Don't call this directly.
* Use b43_radio_selectchannel() */
int b43_nphy_selectchannel(struct b43_wldev *dev, u8 channel)
{
const struct b43_nphy_channeltab_entry *tabent;
tabent = b43_nphy_get_chantabent(dev, channel);
if (!tabent)
return -ESRCH;
//FIXME enable/disable band select upper20 in RXCTL
if (0 /*FIXME 5Ghz*/)
b43_radio_maskset(dev, B2055_MASTER1, 0xFF8F, 0x20);
else
b43_radio_maskset(dev, B2055_MASTER1, 0xFF8F, 0x50);
b43_chantab_radio_upload(dev, tabent);
udelay(50);
b43_radio_write16(dev, B2055_VCO_CAL10, 5);
b43_radio_write16(dev, B2055_VCO_CAL10, 45);
b43_radio_write16(dev, B2055_VCO_CAL10, 65);
udelay(300);
if (0 /*FIXME 5Ghz*/)
b43_phy_set(dev, B43_NPHY_BANDCTL, B43_NPHY_BANDCTL_5GHZ);
else
b43_phy_mask(dev, B43_NPHY_BANDCTL, ~B43_NPHY_BANDCTL_5GHZ);
b43_chantab_phy_upload(dev, tabent);
b43_nphy_tx_power_fix(dev);
return 0;
}
static void b43_radio_init2055_pre(struct b43_wldev *dev)
{
b43_phy_mask(dev, B43_NPHY_RFCTL_CMD,
~B43_NPHY_RFCTL_CMD_PORFORCE);
b43_phy_set(dev, B43_NPHY_RFCTL_CMD,
B43_NPHY_RFCTL_CMD_CHIP0PU |
B43_NPHY_RFCTL_CMD_OEPORFORCE);
b43_phy_set(dev, B43_NPHY_RFCTL_CMD,
B43_NPHY_RFCTL_CMD_PORFORCE);
}
static void b43_radio_init2055_post(struct b43_wldev *dev)
{
struct ssb_sprom *sprom = &(dev->dev->bus->sprom);
struct ssb_boardinfo *binfo = &(dev->dev->bus->boardinfo);
int i;
u16 val;
b43_radio_mask(dev, B2055_MASTER1, 0xFFF3);
msleep(1);
if ((sprom->revision != 4) || !(sprom->boardflags_hi & 0x0002)) {
if ((binfo->vendor != PCI_VENDOR_ID_BROADCOM) ||
(binfo->type != 0x46D) ||
(binfo->rev < 0x41)) {
b43_radio_mask(dev, B2055_C1_RX_BB_REG, 0x7F);
b43_radio_mask(dev, B2055_C1_RX_BB_REG, 0x7F);
msleep(1);
}
}
b43_radio_maskset(dev, B2055_RRCCAL_NOPTSEL, 0x3F, 0x2C);
msleep(1);
b43_radio_write16(dev, B2055_CAL_MISC, 0x3C);
msleep(1);
b43_radio_mask(dev, B2055_CAL_MISC, 0xFFBE);
msleep(1);
b43_radio_set(dev, B2055_CAL_LPOCTL, 0x80);
msleep(1);
b43_radio_set(dev, B2055_CAL_MISC, 0x1);
msleep(1);
b43_radio_set(dev, B2055_CAL_MISC, 0x40);
msleep(1);
for (i = 0; i < 100; i++) {
val = b43_radio_read16(dev, B2055_CAL_COUT2);
if (val & 0x80)
break;
udelay(10);
}
msleep(1);
b43_radio_mask(dev, B2055_CAL_LPOCTL, 0xFF7F);
msleep(1);
b43_radio_selectchannel(dev, dev->phy.channel, 0);
b43_radio_write16(dev, B2055_C1_RX_BB_LPF, 0x9);
b43_radio_write16(dev, B2055_C2_RX_BB_LPF, 0x9);
b43_radio_write16(dev, B2055_C1_RX_BB_MIDACHP, 0x83);
b43_radio_write16(dev, B2055_C2_RX_BB_MIDACHP, 0x83);
}
/* Initialize a Broadcom 2055 N-radio */
static void b43_radio_init2055(struct b43_wldev *dev)
{
b43_radio_init2055_pre(dev);
if (b43_status(dev) < B43_STAT_INITIALIZED)
b2055_upload_inittab(dev, 0, 1);
else
b2055_upload_inittab(dev, 0/*FIXME on 5ghz band*/, 0);
b43_radio_init2055_post(dev);
}
void b43_nphy_radio_turn_on(struct b43_wldev *dev)
{
b43_radio_init2055(dev);
}
void b43_nphy_radio_turn_off(struct b43_wldev *dev)
{
b43_phy_mask(dev, B43_NPHY_RFCTL_CMD,
~B43_NPHY_RFCTL_CMD_EN);
}
int b43_phy_initn(struct b43_wldev *dev)
{
b43err(dev->wl, "IEEE 802.11n devices are not supported, yet.\n");
return 0;
}
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