From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from fg-out-1718.google.com ([72.14.220.153]:58012 "EHLO fg-out-1718.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757231Ab0BDLXj (ORCPT ); Thu, 4 Feb 2010 06:23:39 -0500 Received: by fg-out-1718.google.com with SMTP id 19so27494fgg.1 for ; Thu, 04 Feb 2010 03:23:39 -0800 (PST) From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= To: linux-wireless@vger.kernel.org, "John W. Linville" Cc: bcm43xx-dev@lists.berlios.de, =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Subject: [PATCH 5/5] b43: N-PHY: partly implement SPUR workaround Date: Thu, 4 Feb 2010 12:23:12 +0100 Message-Id: <1265282592-25491-5-git-send-email-zajec5@gmail.com> In-Reply-To: <1265282592-25491-1-git-send-email-zajec5@gmail.com> References: <1265282592-25491-1-git-send-email-zajec5@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: Signed-off-by: Rafał Miłecki --- drivers/net/wireless/b43/phy_n.c | 64 +++++++++++++++++++++++++++++++++++++- drivers/net/wireless/b43/phy_n.h | 3 ++ 2 files changed, 66 insertions(+), 1 deletions(-) diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c index f632494..6f56844 100644 --- a/drivers/net/wireless/b43/phy_n.c +++ b/drivers/net/wireless/b43/phy_n.c @@ -717,6 +717,67 @@ static void b43_nphy_stop_playback(struct b43_wldev *dev) b43_nphy_stay_in_carrier_search(dev, 0); } +/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/SpurWar */ +static void b43_nphy_spur_workaround(struct b43_wldev *dev) +{ + struct b43_phy_n *nphy = dev->phy.n; + + unsigned int channel; + int tone[2] = { 57, 58 }; + u32 noise[2] = { 0x3FF, 0x3FF }; + + B43_WARN_ON(dev->phy.rev < 3); + + if (nphy->hang_avoid) + b43_nphy_stay_in_carrier_search(dev, 1); + + /* FIXME: channel = radio_chanspec */ + + if (nphy->gband_spurwar_en) { + /* TODO: N PHY Adjust Analog Pfbw (7) */ + if (channel == 11 && dev->phy.is_40mhz) + ; /* TODO: N PHY Adjust Min Noise Var(2, tone, noise)*/ + else + ; /* TODO: N PHY Adjust Min Noise Var(0, NULL, NULL)*/ + /* TODO: N PHY Adjust CRS Min Power (0x1E) */ + } + + if (nphy->aband_spurwar_en) { + if (channel == 54) { + tone[0] = 0x20; + noise[0] = 0x25F; + } else if (channel == 38 || channel == 102 || channel == 118) { + if (0 /* FIXME */) { + tone[0] = 0x20; + noise[0] = 0x21F; + } else { + tone[0] = 0; + noise[0] = 0; + } + } else if (channel == 134) { + tone[0] = 0x20; + noise[0] = 0x21F; + } else if (channel == 151) { + tone[0] = 0x10; + noise[0] = 0x23F; + } else if (channel == 153 || channel == 161) { + tone[0] = 0x30; + noise[0] = 0x23F; + } else { + tone[0] = 0; + noise[0] = 0; + } + + if (!tone[0] && !noise[0]) + ; /* TODO: N PHY Adjust Min Noise Var(1, tone, noise)*/ + else + ; /* TODO: N PHY Adjust Min Noise Var(0, NULL, NULL)*/ + } + + if (nphy->hang_avoid) + b43_nphy_stay_in_carrier_search(dev, 0); +} + /* http://bcm-v4.sipsolutions.net/802.11/PHY/N/WorkaroundsGainCtrl */ static void b43_nphy_gain_crtl_workarounds(struct b43_wldev *dev) { @@ -3079,7 +3140,8 @@ int b43_phy_initn(struct b43_wldev *dev) if (phy->rev >= 3 && phy->rev <= 6) b43_phy_write(dev, B43_NPHY_PLOAD_CSENSE_EXTLEN, 0x0014); b43_nphy_tx_lp_fbw(dev); - /* TODO N PHY Spur Workaround */ + if (phy->rev >= 3) + b43_nphy_spur_workaround(dev); b43err(dev->wl, "IEEE 802.11n devices are not supported, yet.\n"); return 0; diff --git a/drivers/net/wireless/b43/phy_n.h b/drivers/net/wireless/b43/phy_n.h index 0400a2c..403aad3 100644 --- a/drivers/net/wireless/b43/phy_n.h +++ b/drivers/net/wireless/b43/phy_n.h @@ -1002,6 +1002,9 @@ struct b43_phy_n { u16 classifier_state; u16 clip_state[2]; + bool aband_spurwar_en; + bool gband_spurwar_en; + bool ipa2g_on; u8 iqcal_chanspec_2G; u8 rssical_chanspec_2G; -- 1.6.4.2