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b43: N-PHY: implement RSSI selection and offset scaling 

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rafał Miłecki 2010-01-15 14:38:32 +01:00 committed by John W. Linville
parent bbec398c1b
commit 3c95627d40
1 changed files with 121 additions and 0 deletions
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121
drivers/net/wireless/b43/phy_n.c
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@ -465,6 +465,127 @@ static void b43_nphy_bphy_init(struct b43_wldev *dev)
b43_phy_write(dev, B43_PHY_N_BMODE(0x38), 0x668);
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/ScaleOffsetRssi */
static void b43_nphy_scale_offset_rssi(struct b43_wldev *dev, u16 scale,
s8 offset, u8 core, u8 rail, u8 type)
{
u16 tmp;
bool core1or5 = (core == 1) || (core == 5);
bool core2or5 = (core == 2) || (core == 5);
offset = clamp_val(offset, -32, 31);
tmp = ((scale & 0x3F) << 8) | (offset & 0x3F);
if (core1or5 && (rail == 0) && (type == 2))
b43_phy_write(dev, B43_NPHY_RSSIMC_0I_RSSI_Z, tmp);
if (core1or5 && (rail == 1) && (type == 2))
b43_phy_write(dev, B43_NPHY_RSSIMC_0Q_RSSI_Z, tmp);
if (core2or5 && (rail == 0) && (type == 2))
b43_phy_write(dev, B43_NPHY_RSSIMC_1I_RSSI_Z, tmp);
if (core2or5 && (rail == 1) && (type == 2))
b43_phy_write(dev, B43_NPHY_RSSIMC_1Q_RSSI_Z, tmp);
if (core1or5 && (rail == 0) && (type == 0))
b43_phy_write(dev, B43_NPHY_RSSIMC_0I_RSSI_X, tmp);
if (core1or5 && (rail == 1) && (type == 0))
b43_phy_write(dev, B43_NPHY_RSSIMC_0Q_RSSI_X, tmp);
if (core2or5 && (rail == 0) && (type == 0))
b43_phy_write(dev, B43_NPHY_RSSIMC_1I_RSSI_X, tmp);
if (core2or5 && (rail == 1) && (type == 0))
b43_phy_write(dev, B43_NPHY_RSSIMC_1Q_RSSI_X, tmp);
if (core1or5 && (rail == 0) && (type == 1))
b43_phy_write(dev, B43_NPHY_RSSIMC_0I_RSSI_Y, tmp);
if (core1or5 && (rail == 1) && (type == 1))
b43_phy_write(dev, B43_NPHY_RSSIMC_0Q_RSSI_Y, tmp);
if (core2or5 && (rail == 0) && (type == 1))
b43_phy_write(dev, B43_NPHY_RSSIMC_1I_RSSI_Y, tmp);
if (core2or5 && (rail == 1) && (type == 1))
b43_phy_write(dev, B43_NPHY_RSSIMC_1Q_RSSI_Y, tmp);
if (core1or5 && (rail == 0) && (type == 6))
b43_phy_write(dev, B43_NPHY_RSSIMC_0I_TBD, tmp);
if (core1or5 && (rail == 1) && (type == 6))
b43_phy_write(dev, B43_NPHY_RSSIMC_0Q_TBD, tmp);
if (core2or5 && (rail == 0) && (type == 6))
b43_phy_write(dev, B43_NPHY_RSSIMC_1I_TBD, tmp);
if (core2or5 && (rail == 1) && (type == 6))
b43_phy_write(dev, B43_NPHY_RSSIMC_1Q_TBD, tmp);
if (core1or5 && (rail == 0) && (type == 3))
b43_phy_write(dev, B43_NPHY_RSSIMC_0I_PWRDET, tmp);
if (core1or5 && (rail == 1) && (type == 3))
b43_phy_write(dev, B43_NPHY_RSSIMC_0Q_PWRDET, tmp);
if (core2or5 && (rail == 0) && (type == 3))
b43_phy_write(dev, B43_NPHY_RSSIMC_1I_PWRDET, tmp);
if (core2or5 && (rail == 1) && (type == 3))
b43_phy_write(dev, B43_NPHY_RSSIMC_1Q_PWRDET, tmp);
if (core1or5 && (type == 4))
b43_phy_write(dev, B43_NPHY_RSSIMC_0I_TSSI, tmp);
if (core2or5 && (type == 4))
b43_phy_write(dev, B43_NPHY_RSSIMC_1I_TSSI, tmp);
if (core1or5 && (type == 5))
b43_phy_write(dev, B43_NPHY_RSSIMC_0Q_TSSI, tmp);
if (core2or5 && (type == 5))
b43_phy_write(dev, B43_NPHY_RSSIMC_1Q_TSSI, tmp);
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RSSISel */
static void b43_nphy_rssi_select(struct b43_wldev *dev, u8 code, u8 type)
{
u16 val;
if (dev->phy.rev >= 3) {
/* TODO */
} else {
if (type < 3)
val = 0;
else if (type == 6)
val = 1;
else if (type == 3)
val = 2;
else
val = 3;
val = (val << 12) | (val << 14);
b43_phy_maskset(dev, B43_NPHY_AFECTL_C1, 0x0FFF, val);
b43_phy_maskset(dev, B43_NPHY_AFECTL_C2, 0x0FFF, val);
if (type < 3) {
b43_phy_maskset(dev, B43_NPHY_RFCTL_RSSIO1, 0xFFCF,
(type + 1) << 4);
b43_phy_maskset(dev, B43_NPHY_RFCTL_RSSIO2, 0xFFCF,
(type + 1) << 4);
}
/* TODO use some definitions */
if (code == 0) {
b43_phy_maskset(dev, B43_NPHY_AFECTL_OVER, 0xCFFF, 0);
if (type < 3) {
b43_phy_maskset(dev, B43_NPHY_RFCTL_CMD,
0xFEC7, 0);
b43_phy_maskset(dev, B43_NPHY_RFCTL_OVER,
0xEFDC, 0);
b43_phy_maskset(dev, B43_NPHY_RFCTL_CMD,
0xFFFE, 0);
udelay(20);
b43_phy_maskset(dev, B43_NPHY_RFCTL_OVER,
0xFFFE, 0);
}
} else {
b43_phy_maskset(dev, B43_NPHY_AFECTL_OVER, 0xCFFF,
0x3000);
if (type < 3) {
b43_phy_maskset(dev, B43_NPHY_RFCTL_CMD,
0xFEC7, 0x0180);
b43_phy_maskset(dev, B43_NPHY_RFCTL_OVER,
0xEFDC, (code << 1 | 0x1021));
b43_phy_maskset(dev, B43_NPHY_RFCTL_CMD,
0xFFFE, 0x0001);
udelay(20);
b43_phy_maskset(dev, B43_NPHY_RFCTL_OVER,
0xFFFE, 0);
}
}
}
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RSSICal */
static void b43_nphy_rev2_rssi_cal(struct b43_wldev *dev, u8 type)
{