This proposed patch implements the TI BTS (Bluetooth script) mechanism.
I have attached the diff and new files to be built along with hciattach.
I have also attached a sample BTS file (the one that goes along with the
BRF6150 plus firmware, as found in the iPAQ hx4700). The code is a bit
chatty (prints BTS comment lines), but provides feedback as to what is
being done with the chip. Comments / Suggestions welcome. Example usage:

hciattach -S /etc/bluetooth/TIInit_3.2.26.bts ttyS1 texas

Sample output (comments come from bts file):

TI module LMP version : 0x02
TI module LMP sub-version : 0x0d1a
Loading BTS script version 1
#--------------------------------------------------------------------------------
# Description : Initilization for BRF6150 2.11 ROM Device
#
#               The following software update is required to be
#               executed after power up or reset of the BRF6150 v2.11 device
#               for optimal performance and enhancement of the RF.
#
#
# Script Ver  : 2.26c
#
# Compatablity: BRF6150 2.11 ROM Device
#
# Last Updated: 25.3.2004
#
# Notes       : For usage on BRF6150 v2.11 ROM device only (FW version
2.0.26)!
#
#--------------------------------------------------------------------------------
#LC Pole trim bits [9:7=011]
# DETECTOR Update
# Set MLSE THRESHOLD to -68 dBm
#MLSE Match filter coef
# MLSE Ideal values
#AFC T2 Coefficients
#ANRITSU Power Control
BTS changing baud rate to 921600, flow control to 1
Bluetooth: HCI UART driver ver 2.1
Bluetooth: HCI H4 protocol initialized
Bluetooth: HCI BCSP protocol initialized

--
Todd Blumer
SDG Systems, LLC