diff options
| author | Rafał Miłecki <zajec5@gmail.com> | 2010-01-17 13:03:55 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-01-19 16:39:08 -0500 |
| commit | 4f4ab6cd1486fcb0ab8d689d625ac7691198f36b (patch) | |
| tree | 64764c250791e5196ac32faf3c91afdb8cff8bc9 /drivers/net/wireless/b43/phy_n.c | |
| parent | 53ae8e8c92b2715f27c95e8e7169bca9a8909856 (diff) | |
b43: N-PHY: implement chain selection
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/b43/phy_n.c')
| -rw-r--r-- | drivers/net/wireless/b43/phy_n.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c index 229f2d0364f..90a49cfaa96 100644 --- a/drivers/net/wireless/b43/phy_n.c +++ b/drivers/net/wireless/b43/phy_n.c @@ -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); |