On 21 Dec 1998, Chris G. Demetriou wrote:

> Tom Javen <tomja@InnoTrac.fi> writes:
> > I have a pci modem (commbridge) with Rockwell chipset.
> > puc driver does not recognice the card.
> > The card identifies itself as a communications device , serial.
> 
> Sure, but what's the 'interface' reported by the PCI configuration
> header?  (should be in your dmesg output, if i'm reading the PCI code
> correctly.)
> 
> Last i'd heard, most of those pci modem cards did _not_ present
> themselves as 16x50 serial ports.  somebody please clue me in if i'm
> out of date.
> 
> 
> > Anyone working on attaching a pci serial port as a com port ?
> 
> The 'puc' driver does that, but it needs configuration glue (see
> puc_data.c) for each different kind of board.  The 'standard' about
> what a PCI serial port is doesn't seem to be followed particularly
> carefully...
> 
> 
I patched the puc driver to give some information.

src/sys/dev/pci/puc.c

puc_match()
....

        if (PCI_CLASS(pa->pa_class) == PCI_CLASS_COMMUNICATIONS &&
            PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_COMMUNICATIONS_SERIAL)
                return (1);



dmesg:

puc0 at pci0 dev 9 function 0:
PCI configuration registers:
  Common header:
    0x00: 0x1005127a 0x02900007 0x07000001 0x00002000

    Vendor Name: Rockwell Semiconductor Systems (0x127a)
    Device Name: (0x1005)
    Command register: 0x0007
      I/O space accesses: on
      Memory space accesses: on
      Bus mastering: on
      Special cycles: off
      MWI transactions: off
      Palette snooping: off
      Parity error checking: off
      Address/data stepping: off
      System error (SERR): off
      Fast back-to-back transactions: off
    Status register: 0x0290
      66 MHz capable: off
      User Definable Features (UDF) support: off
      Fast back-to-back capable: on
      Data parity error detected: off
      DEVSEL timing: medium (0x1)
      Slave signaled Target Abort: off
      Master received Target Abort: off
      Master received Master Abort: off
      Asserted System Error (SERR): off
      Parity error detected: off
    Class Name: communications (0x07)
    Subclass Name: serial (0x00)
    Interface: 0x00
    Revision ID: 0x01
    BIST: 0x00
    Header Type: 0x00 (0x00)
    Latency Timer: 0x20
    Cache Line Size: 0x00

  Type 0 ("normal" device) header:
    0x10: 0xe5800000 0x00000000 0x00000000 0x00000000
    0x20: 0x00000000 0x00000000 0x00008001 0x1005127a
    0x30: 0x00000000 0x00000040 0x00000000 0x000001ff

    Base address register at 0x10
      type: 32-bit noncacheable memory
      base: 0xe5800000, size: 0x00010000
    Base address register at 0x14
      not implemented(?)
    Base address register at 0x18
      not implemented(?)
    Base address register at 0x1c
      not implemented(?)
    Base address register at 0x20
      not implemented(?)
    Base address register at 0x24
      not implemented(?)
    Cardbus CIS Pointer: 0x00008001
    Subsystem vendor ID: 0x127a
    Subsystem ID: 0x1005
    Expansion ROM Base Address: 0x00000000
    Reserved @ 0x34: 0x00000040
    Reserved @ 0x38: 0x00000000
    Maximum Latency: 0x00
    Minimum Grant: 0x00
    Interrupt pin: 0x01 (pin A)
    Interrupt line: 0xff

  Device-dependent header:
    0x40: 0x48210001 0x00000000 0x00000000 0x00000000
    0x50: 0x00000000 0x00000000 0x00000000 0x00000000
    0x60: 0x00000000 0x00000000 0x00000000 0x00000000
    0x70: 0x00000000 0x00000000 0x00000000 0x00000000
    0x80: 0x00000000 0x00000000 0x00000000 0x00000000
    0x90: 0x00000000 0x00000000 0x00000000 0x00000000
    0xa0: 0x00000000 0x00000000 0x00000000 0x00000000
    0xb0: 0x00000000 0x00000000 0x00000000 0x00000000
    0xc0: 0x00000000 0x00000000 0x00000000 0x00000000
    0xd0: 0x00000000 0x00000000 0x00000000 0x00000000
    0xe0: 0x00000000 0x00000000 0x00000000 0x00000000
    0xf0: 0x00000000 0x00000000 0x00000000 0x00000000

    Don't know how to pretty-print device-dependent header.


Anything more I could try ?


Tom

-- 
Tom Javen                        
Innotrac Diagnostics Oy
phone +358-2-2410025            fax   +358-2-2410024
gsm   +358-40-5860532           email tom.javen@innotrac.fi