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