There's an example of how to do this in the ``digi'' driver. It
loads it's firmware module on-the-fly (if it can) and dumps it
afterwards.
As you can see, this saves a bunch of runtime space (digi is the base
driver, digi_* are the firmware modules):
$ ls -l /boot/kernel/digi*
-r-xr-xr-x 1
For drivers which must be active in the boot path, it is
generally necessary to embed the firmware in the driver as
data. This is what FreeBSD does for the Adaptec SCSI
drivers.
For drivers that need to be active after boot time, but before
the mi_startup() is complete, you can load the
Michael Smith wrote:
For drivers which must be active in the boot path, it is
generally necessary to embed the firmware in the driver as
data. This is what FreeBSD does for the Adaptec SCSI
drivers.
For drivers that need to be active after boot time, but before
the mi_startup() is
I am working on an embedded project running FreeBSD, and my driver
for our custom card needs to load an FPGA with code. I know I can
compile the code in as data, but for ease of development, I would
rather fetch the FPGA code from a file. With a driver in kernel
space. Really.
Can it be done?
In message [EMAIL PROTECTED], Kreider, Carl write
s:
I am working on an embedded project running FreeBSD, and my driver
for our custom card needs to load an FPGA with code. I know I can
compile the code in as data, but for ease of development, I would
rather fetch the FPGA code from a file. With
On Wed, 3 Apr 2002, Kreider, Carl wrote:
I am working on an embedded project running FreeBSD, and my driver
for our custom card needs to load an FPGA with code. I know I can
compile the code in as data, but for ease of development, I would
rather fetch the FPGA code from a file. With a driver
On 03-Apr-2002 Poul-Henning Kamp wrote:
In message [EMAIL PROTECTED], Kreider, Carl
write
s:
I am working on an embedded project running FreeBSD, and my driver
for our custom card needs to load an FPGA with code. I know I can
compile the code in as data, but for ease of development, I would
generally the answer is You can't do that
BUT
you could make a loadable module with the firmware,
and load both the module and the driver before booting from
the boot blocks..
then you can unload the firmware module after booting
(or whenever)
On Wed, 3 Apr 2002, Kreider, Carl wrote:
I
Kreider, Carl wrote:
I am working on an embedded project running FreeBSD, and my driver
for our custom card needs to load an FPGA with code. I know I can
compile the code in as data, but for ease of development, I would
rather fetch the FPGA code from a file. With a driver in kernel
space.
On Wed, Apr 03, 2002 at 10:44:17AM -0500, John Baldwin wrote:
Or load the firmware using kldload or from the loader using a type string
similar to the way we do MFS root filesystems.
Or similar to the ISP (Qlogic SCSI) firmware.
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In message: [EMAIL PROTECTED]
Poul-Henning Kamp [EMAIL PROTECTED] writes:
: In message [EMAIL PROTECTED], Kreider, Carl write
: s:
:
: I am working on an embedded project running FreeBSD, and my driver
: for our custom card needs to load an FPGA with code. I know I can
: compile the
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