b43: N-PHY: implement RX IQ coeffs

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

1 files changed, 17 insertions, 0 deletions

diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c
index 62ed7b7f6452..3232a465e0a5 100644
--- a/drivers/net/wireless/b43/phy_n.c
+++ b/drivers/net/wireless/b43/phy_n.c
@@ -408,6 +408,23 @@ static void b43_nphy_reset_cca(struct b43_wldev *dev)
         /* TODO: N PHY Force RF Seq with argument 2 */
 }
 
+/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RxIqCoeffs */
+static void b43_nphy_rx_iq_coeffs(struct b43_wldev *dev, bool write,
+                                        struct b43_phy_n_iq_comp *pcomp)
+{
+        if (write) {
+                b43_phy_write(dev, B43_NPHY_C1_RXIQ_COMPA0, pcomp->a0);
+                b43_phy_write(dev, B43_NPHY_C1_RXIQ_COMPB0, pcomp->b0);
+                b43_phy_write(dev, B43_NPHY_C2_RXIQ_COMPA1, pcomp->a1);
+                b43_phy_write(dev, B43_NPHY_C2_RXIQ_COMPB1, pcomp->b1);
+        } else {
+                pcomp->a0 = b43_phy_read(dev, B43_NPHY_C1_RXIQ_COMPA0);
+                pcomp->b0 = b43_phy_read(dev, B43_NPHY_C1_RXIQ_COMPB0);
+                pcomp->a1 = b43_phy_read(dev, B43_NPHY_C2_RXIQ_COMPA1);
+                pcomp->b1 = b43_phy_read(dev, B43_NPHY_C2_RXIQ_COMPB1);
+        }
+}
+
 /* http://bcm-v4.sipsolutions.net/802.11/PHY/N/clip-detection */
 static void b43_nphy_write_clip_detection(struct b43_wldev *dev, u16 *clip_st)
 {