802.11/PHY/N/PreCalTxGain

N PHY PreCalibrate TX Gain

Set bbmult to 0
If (nphy_ipa2g_on and the band type is 2G) or (nphy_ipa5g_on and the band type is 5G)
1. If the PHY Revision is less than 5
  1. Call N PHY Calibrate TX Gain Control with arguments 11, 0
  2. If hw_phytxchain not equal to 3
    1. Set nphy_txcal_pwr_idx[1] to nphy_txcal_pwr_idx[0]
    2. Call N PHY TX Power Index with arguments 3, nphy_txcal_pwr_idx[0], 1
    3. Set bbmult to 1
2. Else if the PHY Revision is 5
  1. If the current band is 2 GHz
    1. Call N PHY Calibrate TX Gain Control with arguments 12, 0
  2. Otherwise
    1. Set nphy_txcal_pwr_idx[0] to 80
    2. Set nphy_txcal_pwr_idx[1] to 80
    3. Call N PHY TX Power Index with arguments 3, 80, 0
    4. Set bbmult to 1
3. Else if the PHY Revision > 5
  1. If the current band is 2 GHz
    1. Call N PHY Calibrate TX Gain Control with arguments 12, 0
  2. Otherwise
    1. Call N PHY Calibrate TX Gain Control with arguments 14, 0
Otherwise
1. Call N PHY Calibrate TX Gain Control with arguments 10, 0
If bbmult not zero
1. Write 0x3C57 to PHY Register 0x73
2. Set nphy_txcal_bbmult to the contents of PHY Register 0x73