Timeda 8-multiport adapter: only 2 ports available

[Eygene Ryabinkin]

Boris, good day.

Wed, Dec 10, 2008 at 05:13:48PM +0300, Boris Samorodov wrote:
> Boris Samorodov <bsam at ipt.ru> writes:
> 
> > I've got a Sunix PCI Serial 8-channel Multiport adapter (Timedia chipset):
> > -----
> > puc0 at pci0:5:2:0:        class=0x070002 card=0x40661409 chip=0x71681409 rev=0x01 hdr=0x00
> >     vendor     = 'Timedia Technology Co Ltd'
> >     device     = '40371409 PCI / ISA Asynchronous UART Signal Chips Solution'
> 
> Actually the card is 4066, while 4037 (according to pucdata.c) is indeed
> a dual-port card. May be the card is wrongly interpreted by the OS?

pciconf just don't know about 4066, so is prints what it has in the
database.  This is irrelevant to the driver -- it discovers the correct
chip with 8 ports:

> > puc0: <Timedia technology 8 Port Serial> port 0xec00-0xec1f,0xe880-0xe88f,0xe800-0xe807,0xe480-0xe487,0xe400-0xe407,0xe080-0xe087 irq 18 at device 2.0 on pci5
> > puc0: Reserved 0x20 bytes for rid 0x10 type 4 at 0xec00
> > puc0: Reserved 0x10 bytes for rid 0x14 type 4 at 0xe880
> > puc0: Reserved 0x8 bytes for rid 0x18 type 4 at 0xe800
> > puc0: Reserved 0x8 bytes for rid 0x1c type 4 at 0xe480
> > puc0: Reserved 0x8 bytes for rid 0x20 type 4 at 0xe400
> > puc0: Reserved 0x8 bytes for rid 0x24 type 4 at 0xe080
> > puc0: [FILTER]
> > uart4: <16550 or compatible> on puc0
> > uart4: [FILTER]
> > uart4: fast interrupt
> > uart5: <16550 or compatible> on puc0
> > uart5: [FILTER]
> > uart5: fast interrupt
> > -----

Judging by this output, the 6 ports that got their reservations at
dev/pci/pci.c are the ones that aren't recognized by uart.  You may need
to add trace printfs to uart_puc_probe (uart_bus_puc.c) and to
uart_bus_probe (uart_core.c), just around the register resource
allocator.  This should show what devices are passed to the probe
routines and which are rejected.  Be sure to include 'rid' values to
your debug output to get the idea what ports we're speaking about.
-- 
Eygene
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