Commit 2faa6b83 authored by Rafał Miłecki's avatar Rafał Miłecki Committed by John W. Linville

b43: N-PHY: implement RX IQ estimation

Signed-off-by: default avatarRafał Miłecki <zajec5@gmail.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 2f258b74
...@@ -408,6 +408,45 @@ static void b43_nphy_reset_cca(struct b43_wldev *dev) ...@@ -408,6 +408,45 @@ static void b43_nphy_reset_cca(struct b43_wldev *dev)
/* TODO: N PHY Force RF Seq with argument 2 */ /* TODO: N PHY Force RF Seq with argument 2 */
} }
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RxIqEst */
static void b43_nphy_rx_iq_est(struct b43_wldev *dev, struct nphy_iq_est *est,
u16 samps, u8 time, bool wait)
{
int i;
u16 tmp;
b43_phy_write(dev, B43_NPHY_IQEST_SAMCNT, samps);
b43_phy_maskset(dev, B43_NPHY_IQEST_WT, ~B43_NPHY_IQEST_WT_VAL, time);
if (wait)
b43_phy_set(dev, B43_NPHY_IQEST_CMD, B43_NPHY_IQEST_CMD_MODE);
else
b43_phy_mask(dev, B43_NPHY_IQEST_CMD, ~B43_NPHY_IQEST_CMD_MODE);
b43_phy_set(dev, B43_NPHY_IQEST_CMD, B43_NPHY_IQEST_CMD_START);
for (i = 1000; i; i--) {
tmp = b43_phy_read(dev, B43_NPHY_IQEST_CMD);
if (!(tmp & B43_NPHY_IQEST_CMD_START)) {
est->i0_pwr = (b43_phy_read(dev, B43_NPHY_IQEST_IPACC_HI0) << 16) |
b43_phy_read(dev, B43_NPHY_IQEST_IPACC_LO0);
est->q0_pwr = (b43_phy_read(dev, B43_NPHY_IQEST_QPACC_HI0) << 16) |
b43_phy_read(dev, B43_NPHY_IQEST_QPACC_LO0);
est->iq0_prod = (b43_phy_read(dev, B43_NPHY_IQEST_IQACC_HI0) << 16) |
b43_phy_read(dev, B43_NPHY_IQEST_IQACC_LO0);
est->i1_pwr = (b43_phy_read(dev, B43_NPHY_IQEST_IPACC_HI1) << 16) |
b43_phy_read(dev, B43_NPHY_IQEST_IPACC_LO1);
est->q1_pwr = (b43_phy_read(dev, B43_NPHY_IQEST_QPACC_HI1) << 16) |
b43_phy_read(dev, B43_NPHY_IQEST_QPACC_LO1);
est->iq1_prod = (b43_phy_read(dev, B43_NPHY_IQEST_IQACC_HI1) << 16) |
b43_phy_read(dev, B43_NPHY_IQEST_IQACC_LO1);
return;
}
udelay(10);
}
memset(est, 0, sizeof(*est));
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RxIqCoeffs */ /* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RxIqCoeffs */
static void b43_nphy_rx_iq_coeffs(struct b43_wldev *dev, bool write, static void b43_nphy_rx_iq_coeffs(struct b43_wldev *dev, bool write,
struct b43_phy_n_iq_comp *pcomp) struct b43_phy_n_iq_comp *pcomp)
......
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