b43: N-PHY: add RSSI selection for newer PHYs

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 83 insertions, 1 deletions

diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c
index 558d3c052d95..0e04a2668ea3 100644
--- a/drivers/net/wireless/b43/phy_n.c
+++ b/drivers/net/wireless/b43/phy_n.c
@@ -1367,7 +1367,89 @@ static void b43_nphy_rev2_rssi_select(struct b43_wldev *dev, u8 code, u8 type)
 
 static void b43_nphy_rev3_rssi_select(struct b43_wldev *dev, u8 code, u8 type)
 {
-        /* TODO */
+        struct b43_phy_n *nphy = dev->phy.n;
+        u8 i;
+        u16 reg, val;
+
+        if (code == 0) {
+                b43_phy_mask(dev, B43_NPHY_AFECTL_OVER1, 0xFDFF);
+                b43_phy_mask(dev, B43_NPHY_AFECTL_OVER, 0xFDFF);
+                b43_phy_mask(dev, B43_NPHY_AFECTL_C1, 0xFCFF);
+                b43_phy_mask(dev, B43_NPHY_AFECTL_C2, 0xFCFF);
+                b43_phy_mask(dev, B43_NPHY_TXF_40CO_B1S0, 0xFFDF);
+                b43_phy_mask(dev, B43_NPHY_TXF_40CO_B32S1, 0xFFDF);
+                b43_phy_mask(dev, B43_NPHY_RFCTL_LUT_TRSW_UP1, 0xFFC3);
+                b43_phy_mask(dev, B43_NPHY_RFCTL_LUT_TRSW_UP2, 0xFFC3);
+        } else {
+                for (i = 0; i < 2; i++) {
+                        if ((code == 1 && i == 1) || (code == 2 && !i))
+                                continue;
+
+                        reg = (i == 0) ?
+                                B43_NPHY_AFECTL_OVER1 : B43_NPHY_AFECTL_OVER;
+                        b43_phy_maskset(dev, reg, 0xFDFF, 0x0200);
+
+                        if (type < 3) {
+                                reg = (i == 0) ?
+                                        B43_NPHY_AFECTL_C1 :
+                                        B43_NPHY_AFECTL_C2;
+                                b43_phy_maskset(dev, reg, 0xFCFF, 0);
+
+                                reg = (i == 0) ?
+                                        B43_NPHY_RFCTL_LUT_TRSW_UP1 :
+                                        B43_NPHY_RFCTL_LUT_TRSW_UP2;
+                                b43_phy_maskset(dev, reg, 0xFFC3, 0);
+
+                                if (type == 0)
+                                        val = (b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ) ? 4 : 8;
+                                else if (type == 1)
+                                        val = 16;
+                                else
+                                        val = 32;
+                                b43_phy_set(dev, reg, val);
+
+                                reg = (i == 0) ?
+                                        B43_NPHY_TXF_40CO_B1S0 :
+                                        B43_NPHY_TXF_40CO_B32S1;
+                                b43_phy_set(dev, reg, 0x0020);
+                        } else {
+                                if (type == 6)
+                                        val = 0x0100;
+                                else if (type == 3)
+                                        val = 0x0200;
+                                else
+                                        val = 0x0300;
+
+                                reg = (i == 0) ?
+                                        B43_NPHY_AFECTL_C1 :
+                                        B43_NPHY_AFECTL_C2;
+
+                                b43_phy_maskset(dev, reg, 0xFCFF, val);
+                                b43_phy_maskset(dev, reg, 0xF3FF, val << 2);
+
+                                if (type != 3 && type != 6) {
+                                        enum ieee80211_band band =
+                                                b43_current_band(dev->wl);
+
+                                        if ((nphy->ipa2g_on &&
+                                                band == IEEE80211_BAND_2GHZ) ||
+                                                (nphy->ipa5g_on &&
+                                                band == IEEE80211_BAND_5GHZ))
+                                                val = (band == IEEE80211_BAND_5GHZ) ? 0xC : 0xE;
+                                        else
+                                                val = 0x11;
+                                        reg = (i == 0) ? 0x2000 : 0x3000;
+                                        reg |= B2055_PADDRV;
+                                        b43_radio_write16(dev, reg, val);
+
+                                        reg = (i == 0) ?
+                                                B43_NPHY_AFECTL_OVER1 :
+                                                B43_NPHY_AFECTL_OVER;
+                                        b43_phy_set(dev, reg, 0x0200);
+                                }
+                        }
+                }
+        }
 }
 
 /* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RSSISel */