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b43: LCN-PHY: init TX power control

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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rafał Miłecki 2011-09-16 12:34:02 +02:00 committed by John W. Linville
parent ac78a52f49
commit 1b0a69c1ff
2 changed files with 93 additions and 1 deletions
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92
drivers/net/wireless/b43/phy_lcn.c
View File

@ -37,6 +37,13 @@
#include "tables_phy_lcn.h"
#include "main.h"
struct lcn_tx_gains {
u16 gm_gain;
u16 pga_gain;
u16 pad_gain;
u16 dac_gain;
};
struct lcn_tx_iir_filter {
u8 type;
u16 values[16];
@ -198,6 +205,29 @@ static void b43_phy_lcn_afe_set_unset(struct b43_wldev *dev)
b43_phy_write(dev, B43_PHY_LCN_AFE_CTL1, afe_ctl1);
}
/* wlc_lcnphy_get_pa_gain */
static u16 b43_phy_lcn_get_pa_gain(struct b43_wldev *dev)
{
return (b43_phy_read(dev, 0x4fb) & 0x7f00) >> 8;
}
/* wlc_lcnphy_set_dac_gain */
static void b43_phy_lcn_set_dac_gain(struct b43_wldev *dev, u16 dac_gain)
{
u16 dac_ctrl;
dac_ctrl = b43_phy_read(dev, 0x439);
dac_ctrl = dac_ctrl & 0xc7f;
dac_ctrl = dac_ctrl | (dac_gain << 7);
b43_phy_maskset(dev, 0x439, ~0xfff, dac_ctrl);
}
/* wlc_lcnphy_set_bbmult */
static void b43_phy_lcn_set_bbmult(struct b43_wldev *dev, u8 m0)
{
b43_lcntab_write(dev, B43_LCNTAB16(0x00, 0x57), m0 << 8);
}
/* wlc_lcnphy_clear_tx_power_offsets */
static void b43_phy_lcn_clear_tx_power_offsets(struct b43_wldev *dev)
{
@ -400,6 +430,65 @@ static bool b43_phy_lcn_load_tx_iir_ofdm_filter(struct b43_wldev *dev,
return false;
}
/* wlc_lcnphy_set_tx_gain_override */
static void b43_phy_lcn_set_tx_gain_override(struct b43_wldev *dev, bool enable)
{
b43_phy_maskset(dev, 0x4b0, ~(0x1 << 7), enable << 7);
b43_phy_maskset(dev, 0x4b0, ~(0x1 << 14), enable << 14);
b43_phy_maskset(dev, 0x43b, ~(0x1 << 6), enable << 6);
}
/* wlc_lcnphy_set_tx_gain */
static void b43_phy_lcn_set_tx_gain(struct b43_wldev *dev,
struct lcn_tx_gains *target_gains)
{
u16 pa_gain = b43_phy_lcn_get_pa_gain(dev);
b43_phy_write(dev, 0x4b5,
(target_gains->gm_gain | (target_gains->pga_gain << 8)));
b43_phy_maskset(dev, 0x4fb, ~0x7fff,
(target_gains->pad_gain | (pa_gain << 8)));
b43_phy_write(dev, 0x4fc,
(target_gains->gm_gain | (target_gains->pga_gain << 8)));
b43_phy_maskset(dev, 0x4fd, ~0x7fff,
(target_gains->pad_gain | (pa_gain << 8)));
b43_phy_lcn_set_dac_gain(dev, target_gains->dac_gain);
b43_phy_lcn_set_tx_gain_override(dev, true);
}
/* wlc_lcnphy_tx_pwr_ctrl_init */
static void b43_phy_lcn_tx_pwr_ctl_init(struct b43_wldev *dev)
{
struct lcn_tx_gains tx_gains;
u8 bbmult;
b43_mac_suspend(dev);
if (!dev->phy.lcn->hw_pwr_ctl_capable) {
if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
tx_gains.gm_gain = 4;
tx_gains.pga_gain = 12;
tx_gains.pad_gain = 12;
tx_gains.dac_gain = 0;
bbmult = 150;
} else {
tx_gains.gm_gain = 7;
tx_gains.pga_gain = 15;
tx_gains.pad_gain = 14;
tx_gains.dac_gain = 0;
bbmult = 150;
}
b43_phy_lcn_set_tx_gain(dev, &tx_gains);
b43_phy_lcn_set_bbmult(dev, bbmult);
b43_phy_lcn_sense_setup(dev); /* TODO: TEMPSENSE as arg */
} else {
b43err(dev->wl, "TX power control not supported for this HW\n");
}
b43_mac_enable(dev);
}
/* wlc_lcnphy_txrx_spur_avoidance_mode */
static void b43_phy_lcn_txrx_spur_avoidance_mode(struct b43_wldev *dev,
bool enable)
@ -562,7 +651,8 @@ static int b43_phy_lcn_op_init(struct b43_wldev *dev)
else
B43_WARN_ON(1);
b43_phy_lcn_sense_setup(dev);
if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ)
b43_phy_lcn_tx_pwr_ctl_init(dev);
b43_switch_channel(dev, dev->phy.channel);

2
drivers/net/wireless/b43/phy_lcn.h
View File

@ -19,6 +19,8 @@
struct b43_phy_lcn {
bool hw_pwr_ctl;
bool hw_pwr_ctl_capable;
};