[bluetooth] Baseband software interface

[Jamil Khatib <khatib@ieee.org>]

Hi,
Please find the attached file that lists my suggestion for Baseband
controller registers. These registers should control all baseband
functionality (except the encryption and the authentication) by the
system firmware.

I hope to get some feed backs on this list just to feel that I am not
working alone on this project.


Regards,
   Jamil Khatib
OpenCores Organization
http://www.opencores.org



========================
Global control (local information):
- BD_ADDR
- CLKN
- Local Clock
- AR_ADDR
- PM_ADDR
- AM_ADDR

Timing information:
- Tsco for each slave (3 slaves)
- Inquiry time (Tinq)
- Page time (Tpage)
- Broad Cast retransmit
- Flush timeout
- Tsniff
- Tbeacon


Voice and SCO control
- SCO data source (PCM interface or HCI)
- For each SCO channel
  Enable, TDM slot, Slave ID and all encoding parameters (e.g. u-low
A-low....)


Piconet information (for each slave -7 slaves)
- BD_ADDR
- AM_ADDR
- Clock offset (estimated)
- PM_ADDR
- AR_ADDR
- Packet type


BaseBand Machine:
- Set standby, Inquiry, Inquiry scan, Page, Page scan, Connection

[Enable Inquiry parameters]
- Wait for interrupt

[Enable Inquiry scan parameters]
- BD_ADDR of the other side
- CLK of the other side

[Enable Page parameters]
- Packet type
- BD_ADDR
- Switch Master to slave mode
- Scan mode
Upon page response these information are stored in the next slave
information register set (Piconet information)


Events and interrupts:
- Interrupt for each 3.2KHz (half slot timing)
- Interrupt for each responded slave during inquiry mode
- Interrupt when master request for page


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