b43: N-PHY: partly implement SPUR workaround
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c
index b332ffb..74642d4 100644
--- a/drivers/net/wireless/b43/phy_n.c
+++ b/drivers/net/wireless/b43/phy_n.c
@@ -717,6 +717,67 @@
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)
{
@@ -3055,7 +3116,8 @@
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;