Re: Multiport serial card Exsys EX-44388, where are the devices ?

> On Sat, Jan 19, 2019 at 2:52 AM Kurt Jaeger <pi_at_freebsd.org> wrote:
> 
> > Hi!
> >
> > > uart is the new thing. sio info should be ignored.
> > >
> > > Chances are good that this device doesn't have the proper entries in the
> > > puc driver. Do you have any pci devices that show up as unclaimed?
> >
> > In a different box, I got this:
> >
> > none1_at_pci0:7:4:0:       class=0x070002 card=0x000814a1 chip=0x000814a1
> > rev=0xb0 hdr=0x00
> >     vendor     = 'Systembase Co Ltd'
> >     class      = simple comms
> >     subclass   = UART
> >     bar   [10] = type I/O Port, range 32, base 0x1040, size 64, enabled
> >     bar   [14] = type I/O Port, range 32, base 0x1000, size 64, enabled
> >
> 
> This is the one you want. You'll need to add vendor 14a1 device 8 to the
> puc tables. Do you need help with this? It will be a bit tricky because
> each of these defines several ports, I think.
> 
> and:
> >
> > pcib7_at_pci0:6:0:0:       class=0x060400 card=0x00000000 chip=0x10801b21
> > rev=0x04 hdr=0x01
> >     vendor     = 'ASMedia Technology Inc.'
> >     device     = 'ASM1083/1085 PCIe to PCI Bridge'
                      ^^^^^^^^
> >     class      = bridge
> >     subclass   = PCI-PCI
> >
> 
> This is something else.

I believe this is the PCI-PCI bridge that he clearly says
is on the board just a few lines below here.
> 
> 
> > The chips on the card are:
> >
> >   ASMedia asm1083 b0bk4911b3 1543 (?)
              ^^^^^^^^
> >   SystemBase SB16C1058PCI 1624
> >
> > It only detects four (or six?) serials...
> >
> > So I think I found a 'somehow' working setup and have to add stuff to
> > sys/dev/puc/pucdata.c to match it. Thanks for the pointer!
> 
> 
> That's right. Ask me if you need help. There's several different ways that
> hardware vendors slice and dice the UARTs, and there's no standard. Clock
> rate may be an issue too, since newer cards have faster baud clocks to
> support higher rates, but this means to get the right right you have to
> use  a different divisor than the older 16550A typically needed. Luckily
> this is well supported.

I am also wondering if the reason he only saw 4 or 6 ports is that
some of them have been presented to the system in a way that they
look like standard uart0 and uart1, that is why I asked for the full
non verbose pciconf -lB output, it would clear some of that up.

-- 
Rod Grimes                                                 rgrimes_at_freebsd.org