minix/lib/libsys/pci_find_dev.c
Lionel Sambuc c3fc9df84a Adding ipc_ prefix to ipc primitives
* Also change _orig to _intr for clarity
 * Cleaned up {IPC,KER}VEC
 * Renamed _minix_kernel_info_struct to get_minix_kerninfo
 * Merged _senda.S into _ipc.S
 * Moved into separate files get_minix_kerninfo and _do_kernel_call
 * Adapted do_kernel_call to follow same _ convention as ipc functions
 * Drop patches in libc/net/send.c and libc/include/namespace.h

Change-Id: If4ea21ecb65435170d7d87de6c826328e84c18d0
2014-03-01 09:05:01 +01:00

39 lines
817 B
C

/*
pci_find_dev.c
*/
#include "pci.h"
#include "syslib.h"
#include <minix/sysutil.h>
/*===========================================================================*
* pci_find_dev *
*===========================================================================*/
int pci_find_dev(u8_t bus, u8_t dev, u8_t func, int *devindp)
{
int r;
message m;
m.m_type= BUSC_PCI_FIND_DEV;
m.m1_i1= bus;
m.m1_i2= dev;
m.m1_i3= func;
r= ipc_sendrec(pci_procnr, &m);
if (r != 0)
panic("pci_find_dev: can't talk to PCI: %d", r);
if (m.m_type == 1)
{
*devindp= m.m1_i1;
printf("pci_find_dev: got device %d for %d.%d.%d\n",
*devindp, bus, dev, func);
return 1;
}
if (m.m_type != 0)
panic("pci_find_dev: got bad reply from PCI: %d", m.m_type);
printf("pci_find_dev: got nothing\n");
return 0;
}