Return-path: Received: from bu3sch.de ([62.75.166.246]:47959 "EHLO vs166246.vserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752586AbZH0UbY convert rfc822-to-8bit (ORCPT ); Thu, 27 Aug 2009 16:31:24 -0400 From: Michael Buesch To: =?utf-8?q?G=C3=A1bor_Stefanik?= Subject: Re: [PATCH] b43: Implement antenna diversity support for LP-PHY Date: Thu, 27 Aug 2009 22:31:17 +0200 Cc: John Linville , Larry Finger , Mark Huijgen , Broadcom Wireless , linux-wireless References: <4A96D6D6.3050201@gmail.com> In-Reply-To: <4A96D6D6.3050201@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Message-Id: <200908272231.19632.mb@bu3sch.de> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Thursday 27 August 2009 20:56:22 Gábor Stefanik wrote: > The A/G-PHY changes are fallout fixes from the enum change, > which in turn allows the LP-PHY code to be much simpler. > The antenna_to_phyctl change is a fix for a potential > existing bug that this patch may otherwise trigger. > > Signed-off-by: Gábor Stefanik > --- > Note that according to recent spec changes, the A/G-PHY > antenna diversity routines also need to be updated. > However, I'm not lumping those changes into this patch > (this is for LP-PHY). > > drivers/net/wireless/b43/main.c | 3 ++- > drivers/net/wireless/b43/phy_a.c | 2 +- > drivers/net/wireless/b43/phy_common.h | 10 +++++----- > drivers/net/wireless/b43/phy_g.c | 2 +- > drivers/net/wireless/b43/phy_lp.c | 11 ++++++++++- > 5 files changed, 19 insertions(+), 9 deletions(-) > > diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c > index 289e06c..3b038c9 100644 > --- a/drivers/net/wireless/b43/main.c > +++ b/drivers/net/wireless/b43/main.c > @@ -1456,7 +1456,8 @@ static u16 b43_antenna_to_phyctl(int antenna) > return B43_TXH_PHY_ANT2; > case B43_ANTENNA3: > return B43_TXH_PHY_ANT3; > - case B43_ANTENNA_AUTO: > + case B43_ANTENNA_AUTO0: > + case B43_ANTENNA_AUTO1: > return B43_TXH_PHY_ANT01AUTO; > } > B43_WARN_ON(1); > diff --git a/drivers/net/wireless/b43/phy_a.c b/drivers/net/wireless/b43/phy_a.c > index 816e028..809ec97 100644 > --- a/drivers/net/wireless/b43/phy_a.c > +++ b/drivers/net/wireless/b43/phy_a.c > @@ -531,7 +531,7 @@ static void b43_aphy_op_set_rx_antenna(struct b43_wldev *dev, int antenna) > > tmp = b43_phy_read(dev, B43_PHY_BBANDCFG); > tmp &= ~B43_PHY_BBANDCFG_RXANT; > - tmp |= (autodiv ? B43_ANTENNA_AUTO0 : antenna) > + tmp |= (autodiv ? B43_ANTENNA_AUTO1 : antenna) > << B43_PHY_BBANDCFG_RXANT_SHIFT; > b43_phy_write(dev, B43_PHY_BBANDCFG, tmp); > > diff --git a/drivers/net/wireless/b43/phy_common.h b/drivers/net/wireless/b43/phy_common.h > index b47a0f5..28e3846 100644 > --- a/drivers/net/wireless/b43/phy_common.h > +++ b/drivers/net/wireless/b43/phy_common.h > @@ -49,11 +49,11 @@ enum b43_interference_mitigation { > > /* Antenna identifiers */ > enum { > - B43_ANTENNA0, /* Antenna 0 */ > - B43_ANTENNA1, /* Antenna 0 */ > - B43_ANTENNA_AUTO1, /* Automatic, starting with antenna 1 */ > - B43_ANTENNA_AUTO0, /* Automatic, starting with antenna 0 */ > - B43_ANTENNA2, > + B43_ANTENNA0 = 0, /* Antenna 0 */ > + B43_ANTENNA1 = 1, /* Antenna 1 */ > + B43_ANTENNA_AUTO0 = 2, /* Automatic, starting with antenna 0 */ > + B43_ANTENNA_AUTO1 = 3, /* Automatic, starting with antenna 1 */ > + B43_ANTENNA2 = 4, > B43_ANTENNA3 = 8, > > B43_ANTENNA_AUTO = B43_ANTENNA_AUTO0, > diff --git a/drivers/net/wireless/b43/phy_g.c b/drivers/net/wireless/b43/phy_g.c > index c6c9d2f..c6d639d 100644 > --- a/drivers/net/wireless/b43/phy_g.c > +++ b/drivers/net/wireless/b43/phy_g.c > @@ -2651,7 +2651,7 @@ static void b43_gphy_op_set_rx_antenna(struct b43_wldev *dev, int antenna) > > tmp = b43_phy_read(dev, B43_PHY_BBANDCFG); > tmp &= ~B43_PHY_BBANDCFG_RXANT; > - tmp |= (autodiv ? B43_ANTENNA_AUTO0 : antenna) > + tmp |= (autodiv ? B43_ANTENNA_AUTO1 : antenna) > << B43_PHY_BBANDCFG_RXANT_SHIFT; > b43_phy_write(dev, B43_PHY_BBANDCFG, tmp); > > diff --git a/drivers/net/wireless/b43/phy_lp.c b/drivers/net/wireless/b43/phy_lp.c > index 837d952..055c0f7 100644 > --- a/drivers/net/wireless/b43/phy_lp.c > +++ b/drivers/net/wireless/b43/phy_lp.c > @@ -2204,7 +2204,16 @@ static int b43_lpphy_op_init(struct b43_wldev *dev) > > static void b43_lpphy_op_set_rx_antenna(struct b43_wldev *dev, int antenna) > { > - //TODO > + int autodiv = ; Does this compile? > + > + if (dev->phy.rev >= 2) > + return; // rev2+ doesn't support antenna diversity > + > + if (B43_WARN_ON(antenna > B43_ANTENNA_AUTO1)) > + return; > + > + b43_phy_maskset(dev, B43_LPPHY_CRSGAIN_CTL, 0xFFFD, antenna & 0x2); > + b43_phy_maskset(dev, B43_LPPHY_CRSGAIN_CTL, 0xFFFE, antenna & 0x1); > } > > static void b43_lpphy_op_adjust_txpower(struct b43_wldev *dev) -- Greetings, Michael.