43 lines
859 B
C
43 lines
859 B
C
/*
|
|
pci_first_dev.c
|
|
*/
|
|
|
|
#include "pci.h"
|
|
#include "syslib.h"
|
|
#include <minix/sysutil.h>
|
|
|
|
/*===========================================================================*
|
|
* pci_first_dev *
|
|
*===========================================================================*/
|
|
int pci_first_dev(devindp, vidp, didp)
|
|
int *devindp;
|
|
u16_t *vidp;
|
|
u16_t *didp;
|
|
{
|
|
int r;
|
|
message m;
|
|
|
|
m.m_type= BUSC_PCI_FIRST_DEV;
|
|
r= ipc_sendrec(pci_procnr, &m);
|
|
if (r != 0)
|
|
panic("pci_first_dev: can't talk to PCI: %d", r);
|
|
if (m.m_type == 1)
|
|
{
|
|
*devindp= m.m1_i1;
|
|
*vidp= m.m1_i2;
|
|
*didp= m.m1_i3;
|
|
#if DEBUG
|
|
printf("pci_first_dev: got device %d, %04x/%04x\n",
|
|
*devindp, *vidp, *didp);
|
|
#endif
|
|
return 1;
|
|
}
|
|
if (m.m_type != 0)
|
|
panic("pci_first_dev: got bad reply from PCI: %d", m.m_type);
|
|
|
|
#if DEBUG
|
|
printf("pci_first_dev: got nothing\n");
|
|
#endif
|
|
return 0;
|
|
}
|