From 8ac3a2aa7224a7d05f1a71240663c80532969791 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Sun, 22 Jun 2014 23:18:22 +0200 Subject: [PATCH] b43: N-PHY: update low-pass filter setup MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Add support for external PA and clean code a bit. Signed-off-by: Rafał Miłecki Signed-off-by: John W. Linville --- drivers/net/wireless/b43/phy_n.c | 31 +++++++++++++++++++------------ 1 file 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) { -- 2.20.1