R92C_OFDM1_LSTF
txmode = rtwn_read_1(sc, R92C_OFDM1_LSTF + 3);
rtwn_write_1(sc, R92C_OFDM1_LSTF + 3, txmode & ~0x70);
rtwn_write_1(sc, R92C_OFDM1_LSTF + 3, txmode);
rtwn_bb_setbits(sc, R92C_OFDM1_LSTF, 0x0c00,
rtwn_bb_setbits(sc, R92C_OFDM1_LSTF, 0x0c00, (prichlo ? 1 : 2) << 10);