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Improve probe message for generic PCI->xxx bridge chips.

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Submitted by:	phk
This commit is contained in:
se 1997-03-25 19:03:04 +00:00
parent a0e22d0daf
commit 505530044a
1 changed files with 16 additions and 6 deletions
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22
sys/pci/pcisupport.c
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@ -1,6 +1,6 @@
/**************************************************************************
**
** $Id$
** $Id: pcisupport.c,v 1.43 1997/02/22 09:44:13 peter Exp $
**
** Device driver for DEC/INTEL PCI chipsets.
**
@ -87,18 +87,28 @@ struct condmsg {
static char*
generic_pci_bridge (pcici_t tag)
{
char *descr;
char *descr, tmpbuf[120];
unsigned classreg = pci_conf_read (tag, PCI_CLASS_REG);
if ((classreg & PCI_CLASS_MASK) == PCI_CLASS_BRIDGE) {
unsigned id = pci_conf_read (tag, PCI_ID_REG);
descr = malloc (sizeof PPB_DESCR +1, M_DEVBUF, M_WAITOK);
if (descr) {
sprintf (descr, PPB_DESCR, id & 0xffff, (id >> 16) & 0xffff,
(classreg >> 16) & 0xff);
switch (classreg >> 16 & 0xff) {
case 0: strcpy(tmpbuf, "Host->PCI"); break;
case 1: strcpy(tmpbuf, "PCI->ISA"); break;
case 2: strcpy(tmpbuf, "PCI->EISA"); break;
case 4: strcpy(tmpbuf, "PCI->PCI"); break;
case 5: strcpy(tmpbuf, "PCI->PCMCIA"); break;
case 7: strcpy(tmpbuf, "PCI->CardBus"); break;
default:
sprintf(tmpbuf, "PCI->0x%x", classreg>>16 & 0xff);
break;
}
sprintf(tmpbuf+strlen(tmpbuf), " bridge (vendor=%04x device=%04x)",
id & 0xffff, (id >> 16) & 0xffff);
descr = malloc (strlen(tmpbuf) +1, M_DEVBUF, M_WAITOK);
strcpy(descr, tmpbuf);
return descr;
}
return 0;