IWN_ANT_ABC
sc->txchainmask = IWN_ANT_ABC;
sc->rxchainmask = IWN_ANT_ABC;
sc->rxchainmask = IWN_ANT_ABC;
mask = (le16toh(phy->antenna) >> 4) & IWN_ANT_ABC;
sc->rxchainmask = IWN_ANT_ABC;
#define IWN_RXCHAIN_VALID(x) (((x) & IWN_ANT_ABC) << 1)
#define IWN_RXCHAIN_FORCE_SEL(x) (((x) & IWN_ANT_ABC) << 4)
#define IWN_RXCHAIN_FORCE_MIMO_SEL(x) (((x) & IWN_ANT_ABC) << 7)