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authorRafał Miłecki <zajec5@gmail.com>2010-02-04 12:23:10 +0100
committerJohn W. Linville <linville@tuxdriver.com>2010-02-08 16:50:55 -0500
commit984ff4ffb7fa36b9ac440a3802fd19658eccc84e (patch)
treeff1db376382dba4933766bebf3931d300eec0ae1 /drivers/net/wireless/b43
parent67cbc3ed5b96a5acfddae142fa0e2adb1b6270d5 (diff)
b43: N-PHY: prepare code for reapplying TX cal coeffs
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/b43')
-rw-r--r--drivers/net/wireless/b43/phy_n.c35
1 files changed, 34 insertions, 1 deletions
diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c
index 8992457b0c0b..3dd22bc527d0 100644
--- a/drivers/net/wireless/b43/phy_n.c
+++ b/drivers/net/wireless/b43/phy_n.c
@@ -2587,6 +2587,39 @@ static int b43_nphy_cal_tx_iq_lo(struct b43_wldev *dev,
return error;
}
+/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/ReapplyTxCalCoeffs */
+static void b43_nphy_reapply_tx_cal_coeffs(struct b43_wldev *dev)
+{
+ struct b43_phy_n *nphy = dev->phy.n;
+ u8 i;
+ u16 buffer[7];
+ bool equal = true;
+
+ if (!nphy->txiqlocal_coeffsvalid || 1 /* FIXME */)
+ return;
+
+ b43_ntab_read_bulk(dev, B43_NTAB16(15, 80), 7, buffer);
+ for (i = 0; i < 4; i++) {
+ if (buffer[i] != nphy->txiqlocal_bestc[i]) {
+ equal = false;
+ break;
+ }
+ }
+
+ if (!equal) {
+ b43_ntab_write_bulk(dev, B43_NTAB16(15, 80), 4,
+ nphy->txiqlocal_bestc);
+ for (i = 0; i < 4; i++)
+ buffer[i] = 0;
+ b43_ntab_write_bulk(dev, B43_NTAB16(15, 88), 4,
+ buffer);
+ b43_ntab_write_bulk(dev, B43_NTAB16(15, 85), 2,
+ &nphy->txiqlocal_bestc[5]);
+ b43_ntab_write_bulk(dev, B43_NTAB16(15, 93), 2,
+ &nphy->txiqlocal_bestc[5]);
+ }
+}
+
/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/CalRxIqRev2 */
static int b43_nphy_rev2_cal_rx_iq(struct b43_wldev *dev,
struct nphy_txgains target, u8 type, bool debug)
@@ -2617,7 +2650,7 @@ static int b43_nphy_rev2_cal_rx_iq(struct b43_wldev *dev,
b43_nphy_stay_in_carrier_search(dev, 1);
if (dev->phy.rev < 2)
- ;/* TODO: Call N PHY Reapply TX Cal Coeffs */
+ b43_nphy_reapply_tx_cal_coeffs(dev);
b43_ntab_read_bulk(dev, B43_NTAB16(7, 0x110), 2, gain_save);
for (i = 0; i < 2; i++) {
b43_nphy_iq_cal_gain_params(dev, i, target, &cal_params[i]);