168d766f32
. pci_reserve() returns an error on devices that have already been reserved, instead of panic()ing; the pci_reserve() library call still panics, pci_reserve_ok() returns an int. . this allows at_wini to use the instance value as intended, as all devices are seen, even reserved ones . only devices actually used by at_wini are pci_reserve()d . pci doesn't release devices based on argv[0], as at_wini both have the same name and multiple instances won't work together properly
43 lines
983 B
C
43 lines
983 B
C
/*
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pci_reserve.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_reserve *
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*===========================================================================*/
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PUBLIC void pci_reserve(devind)
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int devind;
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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_RESERVE;
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m.m1_i1= devind;
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r= sendrec(pci_procnr, &m);
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if (r != 0)
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panic("pci", "pci_reserve: can't talk to PCI", r);
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if (m.m_type != 0)
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panic("pci", "pci_reserve: got bad reply from PCI", m.m_type);
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}
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/*===========================================================================*
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* pci_reserve_ok *
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*===========================================================================*/
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PUBLIC int pci_reserve_ok(devind)
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int devind;
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{
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int r;
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message m;
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m.m1_i1= devind;
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return(_taskcall(pci_procnr, BUSC_PCI_RESERVE, &m));
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}
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