[ECOS] RedBoot serial rx interrupts

[Grant Edwards]

On Sat, Jan 13, 2001 at 03:11:34PM -0700, Gary Thomas wrote:

> This looks OK and I think I mispoke before.  GDB_BREAK can and will
> be set, even for RAM based RedBoot.

Does that mean that it's normal for RedBoot to unmask serial
interrupts?

> However, interrupts should never actually get turned on in the
> RedBoot environment.  The only place where interrupts are
> enabled is in the path where the kernel scheduler is enabled.
> 
> Are you seeing otherwise?  If so, where?

My Ethernet driver initialization routine ends up calling
cyg_drv_isr_lock() and cyg_drv_isr_unlock().  The latter
enables interrupts.

I can add #defines to my driver code to turn those into noops
unless CYGPKG_NET is defined.

This raises the question: is it OK to call those two routines
during network device initialization?

-- 
Grant Edwards
grante@visi.com