From 0b5dd734d3545a9833c0bceeed5088ad9a1ca5e3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Mon, 18 Jul 2011 02:13:23 +0200 Subject: [PATCH] b43: HT-PHY: fix masks in radio ctl MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Old masks were causing ugly, delayed lock ups. Signed-off-by: Rafał Miłecki Signed-off-by: John W. Linville --- drivers/net/wireless/b43/phy_ht.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/b43/phy_ht.c b/drivers/net/wireless/b43/phy_ht.c index 21d1847a9117..7c40919651a7 100644 --- a/drivers/net/wireless/b43/phy_ht.c +++ b/drivers/net/wireless/b43/phy_ht.c @@ -276,13 +276,18 @@ static void b43_phy_ht_op_software_rfkill(struct b43_wldev *dev, if (b43_read32(dev, B43_MMIO_MACCTL) & B43_MACCTL_ENABLED) b43err(dev->wl, "MAC not suspended\n"); + /* In the following PHY ops we copy wl's dummy behaviour. + * TODO: Find out if reads (currently hidden in masks/masksets) are + * needed and replace following ops with just writes or w&r. + * Note: B43_PHY_HT_RF_CTL1 register is tricky, wrong operation can + * cause delayed (!) machine lock up. */ if (blocked) { - b43_phy_mask(dev, B43_PHY_HT_RF_CTL1, ~0); + b43_phy_mask(dev, B43_PHY_HT_RF_CTL1, 0); } else { - b43_phy_mask(dev, B43_PHY_HT_RF_CTL1, ~0); - b43_phy_maskset(dev, B43_PHY_HT_RF_CTL1, ~0, 0x1); - b43_phy_mask(dev, B43_PHY_HT_RF_CTL1, ~0); - b43_phy_maskset(dev, B43_PHY_HT_RF_CTL1, ~0, 0x2); + b43_phy_mask(dev, B43_PHY_HT_RF_CTL1, 0); + b43_phy_maskset(dev, B43_PHY_HT_RF_CTL1, 0, 0x1); + b43_phy_mask(dev, B43_PHY_HT_RF_CTL1, 0); + b43_phy_maskset(dev, B43_PHY_HT_RF_CTL1, 0, 0x2); if (dev->phy.radio_ver == 0x2059) b43_radio_2059_init(dev);