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b43: LCN-PHY: implement SPUR avoidance mode

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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 12:34:01 +02:00 committed by John W. Linville
parent 0c5644b98b
commit ac78a52f49
1 changed files with 56 additions and 2 deletions
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58
drivers/net/wireless/b43/phy_lcn.c
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@ -42,6 +42,39 @@ struct lcn_tx_iir_filter {
u16 values[16];
};
/* In theory it's PHY common function, move if needed */
/* brcms_b_switch_macfreq */
static void b43_phy_switch_macfreq(struct b43_wldev *dev, u8 spurmode)
{
if (dev->dev->chip_id == 43224 || dev->dev->chip_id == 43225) {
switch (spurmode) {
case 2: /* 126 Mhz */
b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0x2082);
b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0x8);
break;
case 1: /* 123 Mhz */
b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0x5341);
b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0x8);
break;
default: /* 120 Mhz */
b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0x8889);
b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0x8);
break;
}
} else if (dev->phy.type == B43_PHYTYPE_LCN) {
switch (spurmode) {
case 1: /* 82 Mhz */
b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0x7CE0);
b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0xC);
break;
default: /* 80 Mhz */
b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0xCCCD);
b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0xC);
break;
}
}
}
/**************************************************
* Radio 2064.
**************************************************/
@ -367,6 +400,27 @@ static bool b43_phy_lcn_load_tx_iir_ofdm_filter(struct b43_wldev *dev,
return false;
}
/* wlc_lcnphy_txrx_spur_avoidance_mode */
static void b43_phy_lcn_txrx_spur_avoidance_mode(struct b43_wldev *dev,
bool enable)
{
if (enable) {
b43_phy_write(dev, 0x942, 0x7);
b43_phy_write(dev, 0x93b, ((1 << 13) + 23));
b43_phy_write(dev, 0x93c, ((1 << 13) + 1989));
b43_phy_write(dev, 0x44a, 0x084);
b43_phy_write(dev, 0x44a, 0x080);
b43_phy_write(dev, 0x6d3, 0x2222);
b43_phy_write(dev, 0x6d3, 0x2220);
} else {
b43_phy_write(dev, 0x942, 0x0);
b43_phy_write(dev, 0x93b, ((0 << 13) + 23));
b43_phy_write(dev, 0x93c, ((0 << 13) + 1989));
}
b43_phy_switch_macfreq(dev, enable);
}
/**************************************************
* Channel switching ops.
**************************************************/
@ -388,7 +442,7 @@ static void b43_phy_lcn_set_channel_tweaks(struct b43_wldev *dev, int channel)
b43_phy_write(dev, 0x942, 0);
/* b43_phy_lcn_txrx_spur_avoidance_mode(dev, false); */
b43_phy_lcn_txrx_spur_avoidance_mode(dev, false);
b43_phy_maskset(dev, 0x424, (u16) ~0xff00, 0x1b00);
b43_phy_write(dev, 0x425, 0x5907);
} else {
@ -400,7 +454,7 @@ static void b43_phy_lcn_set_channel_tweaks(struct b43_wldev *dev, int channel)
b43_phy_write(dev, 0x942, 0);
/* b43_phy_lcn_txrx_spur_avoidance_mode(dev, true); */
b43_phy_lcn_txrx_spur_avoidance_mode(dev, true);
b43_phy_maskset(dev, 0x424, (u16) ~0xff00, 0x1f00);
b43_phy_write(dev, 0x425, 0x590a);
}