diff options
| author | Rafał Miłecki <zajec5@gmail.com> | 2014-06-23 01:18:22 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2014-06-25 23:32:48 +0400 |
| commit | 8ac3a2aa7224a7d05f1a71240663c80532969791 (patch) | |
| tree | e61c093b079e2201a9b950a92b0f623ce1824c76 /drivers/net/wireless/b43/phy_n.c | |
| parent | ed03033e3033c98e83d45bf4cdca1efdfd86e98e (diff) | |
| download | linux-8ac3a2aa7224a7d05f1a71240663c80532969791.tar.xz | |
b43: N-PHY: update low-pass filter setup
Add support for external PA and clean code a bit.
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 | 31 |
1 files changed, 19 insertions, 12 deletions
diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c index d9409b446ac1..0fb5e14a4554 100644 --- a/drivers/net/wireless/b43/phy_n.c +++ b/drivers/net/wireless/b43/phy_n.c @@ -3706,21 +3706,28 @@ static void b43_nphy_pa_override(struct b43_wldev *dev, bool enable) } } -/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/TxLpFbw */ -static void b43_nphy_tx_lp_fbw(struct b43_wldev *dev) +/* + * TX low-pass filter bandwidth setup + * http://bcm-v4.sipsolutions.net/802.11/PHY/N/TxLpFbw + */ +static void b43_nphy_tx_lpf_bw(struct b43_wldev *dev) { u16 tmp; - if (dev->phy.rev >= 3) { - if (b43_nphy_ipa(dev)) { - tmp = 4; - b43_phy_write(dev, B43_NPHY_TXF_40CO_B32S2, - (((((tmp << 3) | tmp) << 3) | tmp) << 3) | tmp); - } + if (dev->phy.rev < 3 || dev->phy.rev >= 7) + return; - tmp = 1; + if (b43_nphy_ipa(dev)) + tmp = b43_is_40mhz(dev) ? 5 : 4; + else + tmp = b43_is_40mhz(dev) ? 3 : 1; + b43_phy_write(dev, B43_NPHY_TXF_40CO_B32S2, + (tmp << 9) | (tmp << 6) | (tmp << 3) | tmp); + + if (b43_nphy_ipa(dev)) { + tmp = b43_is_40mhz(dev) ? 4 : 1; b43_phy_write(dev, B43_NPHY_TXF_40CO_B1S2, - (((((tmp << 3) | tmp) << 3) | tmp) << 3) | tmp); + (tmp << 9) | (tmp << 6) | (tmp << 3) | tmp); } } @@ -5347,7 +5354,7 @@ static int b43_phy_initn(struct b43_wldev *dev) b43_phy_write(dev, B43_NPHY_TXMACDELAY, 0x0320); if (phy->rev >= 3 && phy->rev <= 6) b43_phy_write(dev, B43_NPHY_PLOAD_CSENSE_EXTLEN, 0x0032); - b43_nphy_tx_lp_fbw(dev); + b43_nphy_tx_lpf_bw(dev); if (phy->rev >= 3) b43_nphy_spur_workaround(dev); @@ -5433,7 +5440,7 @@ static void b43_nphy_channel_setup(struct b43_wldev *dev, if (dev->phy.rev < 3) b43_nphy_adjust_lna_gain_table(dev); - b43_nphy_tx_lp_fbw(dev); + b43_nphy_tx_lpf_bw(dev); if (dev->phy.rev >= 3 && dev->phy.n->spur_avoid != B43_SPUR_AVOID_DISABLE) { |