43 lines
835 B
C
43 lines
835 B
C
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/*
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pci_find_dev.c
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*/
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#include "syslib.h"
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#include <minix/sysutil.h>
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/*===========================================================================*
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* pci_find_dev *
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*===========================================================================*/
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PUBLIC int pci_find_dev(bus, dev, func, devindp)
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u8_t bus;
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u8_t dev;
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u8_t func;
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int *devindp;
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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_FIND_DEV;
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m.m1_i1= bus;
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m.m1_i2= dev;
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m.m1_i3= func;
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r= sendrec(PCI_PROC_NR, &m);
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if (r != 0)
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panic("pci", "pci_find_dev: can't talk to PCI", 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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printf("pci_find_dev: got device %d for %d.%d.%d\n",
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*devindp, bus, dev, func);
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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", "pci_find_dev: got bad reply from PCI", m.m_type);
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printf("pci_find_dev: got nothing\n");
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return 0;
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}
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