• 802.11
• PHY
• Init

To decide which initialization routine to call, the PHY Version Register is checked to verify the PHY type and the PHY Revision.

A PHYs

• APHY Init

B PHYs

• B PHYs with PHY Revision 5

• B PHYs with PHY Revision 6

G PHYs

• G PHY Init

LP PHYs

• LP PHY Init

N PHYs

• N PHY Init

Common

1. If initialization_is_in_progress flag is set
   1. Exit
2. Set the initialization_is_in_progress flag

3. Read Core Registers 0x01A0 and save the result

4. Set the current interference mode to 0

5. Enable the Analog Core

6. If the result of the wlc_valid_chanspec(..., pih->pubpi.radio_chanspec, 0) routine is zero

   1. Perform the wlc_chanspec_radio_set(..., wlc_default_chanspec(pih->wlc, 1)) routine

7. If pih->pubpi.radio_chanspec bitwise ANDed with 0x0C00 equals 0x0C00

   1. Set a mask of 0x0028
8. Otherwise
   1. Set a mask of 0x0014
9. If the current value of pubpi.bw is not equal to the mask
   1. Perform the wlc_set_bw(..., mask) routine
10. Perform the wlc_switch_radio(..., 1) routine
11. Perform the initialization routine indicated above
12. If the Wireless Core Revision is 0xC or less
    1. If the rspec_override is not zero

       1. Perform the wlc_radar_chanspec(..., pih->pubpi.radio_chanspec) routine and bitwise XOR the result with 1

       2. Set pa_on to 1 minus the previous result
    2. Otherwise
       1. Set pa_on to zero

    3. Perform an ODFM Dummy Transmission with pa_on as the 3rd argument

13. If this is a G PHY

    1. Save the Frequency Tracking Registers (PHY Registers 0x18 and 0x38)

14. If this is not an N PHY

    1. Update the TX Power Shared Memory

15. Disable Interference Mitigation

16. Set the Antenna Diversity as desired

17. Clear the initialization_is_in_progress flag