wlc_lcnphy_start_tx_tone
void wlc_lcnphy_start_tx_tone(struct brcms_phy *pi, s32 f_kHz, u16 max_val,
wlc_lcnphy_start_tx_tone(pi, 2000, (40 >> 1), 0);
wlc_lcnphy_start_tx_tone(pi, 2000, 40, 0);
wlc_lcnphy_start_tx_tone(pi, 3750, 88, 1);
wlc_lcnphy_start_tx_tone(pi, 3750, 88, 1);
wlc_lcnphy_start_tx_tone(pi, 3750, 88, 0);