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b43: N-PHY: implement chain selection

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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 2010-01-17 13:03:55 +01:00 committed by John W. Linville
parent 53ae8e8c92
commit 4f4ab6cd14
2 changed files with 30 additions and 1 deletions
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30
drivers/net/wireless/b43/phy_n.c
View File

@ -438,6 +438,34 @@ static void b43_nphy_update_mimo_config(struct b43_wldev *dev, s32 preamble)
b43_phy_write(dev, B43_NPHY_MIMOCFG, mimocfg);
}
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/Chains */
static void b43_nphy_update_txrx_chain(struct b43_wldev *dev)
{
struct b43_phy_n *nphy = dev->phy.n;
bool override = false;
u16 chain = 0x33;
if (nphy->txrx_chain == 0) {
chain = 0x11;
override = true;
} else if (nphy->txrx_chain == 1) {
chain = 0x22;
override = true;
}
b43_phy_maskset(dev, B43_NPHY_RFSEQCA,
~(B43_NPHY_RFSEQCA_TXEN | B43_NPHY_RFSEQCA_RXEN),
chain);
if (override)
b43_phy_set(dev, B43_NPHY_RFSEQMODE,
B43_NPHY_RFSEQMODE_CAOVER);
else
b43_phy_mask(dev, B43_NPHY_RFSEQMODE,
~B43_NPHY_RFSEQMODE_CAOVER);
}
/* 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)
@ -2223,7 +2251,7 @@ int b43_phy_initn(struct b43_wldev *dev)
b43_phy_write(dev, B43_NPHY_TXRIFS_FRDEL, 0x30);
b43_nphy_update_mimo_config(dev, nphy->preamble_override);
/* TODO Update TX/RX chain */
b43_nphy_update_txrx_chain(dev);
if (phy->rev < 2) {
b43_phy_write(dev, B43_NPHY_DUP40_GFBL, 0xAA8);

1
drivers/net/wireless/b43/phy_n.h
View File

@ -987,6 +987,7 @@ struct b43_phy_n {
bool txiqlocal_coeffsvalid;
struct b43_phy_n_txpwrindex txpwrindex[2];
u8 txrx_chain;
u16 tx_rx_cal_phy_saveregs[11];
u16 tx_rx_cal_radio_saveregs[22];