b43: LCN-PHY: tweaks for channel switching

[deliverable/linux.git] / drivers / net / wireless / b43 / phy_common.c

diff --git a/drivers/net/wireless/b43/phy_common.c b/drivers/net/wireless/b43/phy_common.c
index 101957512bcce2842e351ddb1095c59f343383f9..3ea44bb036844ef4a5da47b91ffd80ec8a18ec31 100644 (file)
--- a/drivers/net/wireless/b43/phy_common.c
+++ b/drivers/net/wireless/b43/phy_common.c
@@ -5,7 +5,7 @@
 
   Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
   Copyright (c) 2005-2007 Stefano Brivio <stefano.brivio@polimi.it>
-  Copyright (c) 2005-2008 Michael Buesch <mb@bu3sch.de>
+  Copyright (c) 2005-2008 Michael Buesch <m@bues.ch>
   Copyright (c) 2005, 2006 Danny van Dyk <kugelfang@gentoo.org>
   Copyright (c) 2005, 2006 Andreas Jaggi <andreas.jaggi@waterwave.ch>
 
@@ -448,6 +448,38 @@ bool b43_channel_type_is_40mhz(enum nl80211_channel_type channel_type)
                channel_type == NL80211_CHAN_HT40PLUS);
 }
 
+/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/BmacPhyClkFgc */
+void b43_phy_force_clock(struct b43_wldev *dev, bool force)
+{
+       u32 tmp;
+
+       WARN_ON(dev->phy.type != B43_PHYTYPE_N &&
+               dev->phy.type != B43_PHYTYPE_HT);
+
+       switch (dev->dev->bus_type) {
+#ifdef CONFIG_B43_BCMA
+       case B43_BUS_BCMA:
+               tmp = bcma_aread32(dev->dev->bdev, BCMA_IOCTL);
+               if (force)
+                       tmp |= BCMA_IOCTL_FGC;
+               else
+                       tmp &= ~BCMA_IOCTL_FGC;
+               bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, tmp);
+               break;
+#endif
+#ifdef CONFIG_B43_SSB
+       case B43_BUS_SSB:
+               tmp = ssb_read32(dev->dev->sdev, SSB_TMSLOW);
+               if (force)
+                       tmp |= SSB_TMSLOW_FGC;
+               else
+                       tmp &= ~SSB_TMSLOW_FGC;
+               ssb_write32(dev->dev->sdev, SSB_TMSLOW, tmp);
+               break;
+#endif
+       }
+}
+
 /* http://bcm-v4.sipsolutions.net/802.11/PHY/Cordic */
 struct b43_c32 b43_cordic(int theta)
 {