The
btccc
node type is both a persistent Netgraph node type and a driver for the
3Com Bluetooth PC card (3CRWB6096-HP).
It implements a Bluetooth HCI
UART transport layer as per chapter H4 of the Bluetooth Specification
Book v1.1.
A new node is created when the card is plugged.
In order to use the card one
MUST
download the firmware first.
Due to copyright issues the firmware cannot be provided with this driver.
The firmware can be obtained
from the Windows driver package that can be downloaded from the 3Com web
site at no charge.
The firmware name is
BT3CPCC.BIN
To load the firmware into the card, use
bt3cfw(8).
I am using the original firmware that came with the card on CD-ROM.
The node has a single hook called
hook
Incoming bytes received on the device are re-assembled into HCI frames
(according to the length).
Full HCI frames are sent out on the hook.
HCI frames received on
hook
are transmitted out.
No modification to the data is performed in either direction.
HARDWARE
The
driver provides support for the 3Com/HP 3CRWB6096-A PCCARD bluetooth adapter.
HOOKS
This node type supports the following hooks:
hook
single HCI frame contained in single
Vt mbuf
structure.
CONTROL MESSAGES
This node type supports the generic control messages, plus the following:
NGM_BT3C_NODE_GET_STATE
Returns the current receiving state for the node.
NGM_BT3C_NODE_GET_DEBUG
Returns an integer containing the current debug level for the node.
NGM_BT3C_NODE_SET_DEBUG
This command takes an integer argument and sets the current debug level
for the node.
NGM_BT3C_NODE_GET_QLEN
This command takes a parameter that specifies queue number and returns
the current length of the queue for the node.
NGM_BT3C_NODE_SET_QLEN
This command takes two parameters that specify the queue number and
the maximum length of the queue and sets the maximum length of the queue for
the node.
NGM_BT3C_NODE_GET_STAT
Returns various statistic information for the node, such as: number of
bytes (frames) sent, number of bytes (frames) received and number of
input (output) errors.
NGM_BT3C_NODE_RESET_STAT
Reset all statistic counters to zero.
NGM_BT3C_NODE_DOWNLOAD_FIRMWARE
Download card firmware.
SHUTDOWN
This node shuts down when the corresponding card is un-plugged.
