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authorRafał Miłecki <zajec5@gmail.com>2010-01-07 14:09:27 +0100
committerJohn W. Linville <linville@tuxdriver.com>2010-01-12 13:57:57 -0500
commit81f14df0b3909875902b0253d7059e8a73dd0c7f (patch)
treee628627a540f78ba3b6be09e08380455a04743d6
parent81ac3462d346ee7aaf037a35156b0a7a354e98cf (diff)
b43: LP-PHY: note and explain specs inconsistency
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/b43/phy_lp.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/wireless/b43/phy_lp.c b/drivers/net/wireless/b43/phy_lp.c
index 3e046ec1ff8..eb4fb4581ed 100644
--- a/drivers/net/wireless/b43/phy_lp.c
+++ b/drivers/net/wireless/b43/phy_lp.c
@@ -80,6 +80,7 @@ static void b43_lpphy_op_free(struct b43_wldev *dev)
dev->phy.lp = NULL;
}
+/* http://bcm-v4.sipsolutions.net/802.11/PHY/LP/ReadBandSrom */
static void lpphy_read_band_sprom(struct b43_wldev *dev)
{
struct b43_phy_lp *lpphy = dev->phy.lp;
@@ -101,6 +102,12 @@ static void lpphy_read_band_sprom(struct b43_wldev *dev)
maxpwr = bus->sprom.maxpwr_bg;
lpphy->max_tx_pwr_med_band = maxpwr;
cckpo = bus->sprom.cck2gpo;
+ /*
+ * We don't read SPROM's opo as specs say. On rev8 SPROMs
+ * opo == ofdm2gpo and we don't know any SSB with LP-PHY
+ * and SPROM rev below 8.
+ */
+ B43_WARN_ON(bus->sprom.revision < 8);
ofdmpo = bus->sprom.ofdm2gpo;
if (cckpo) {
for (i = 0; i < 4; i++) {