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/*
pci_dev_name.c
*/
#include "pci.h"
#include "syslib.h"
#include <minix/sysutil.h>
/*===========================================================================*
* pci_dev_name *
*===========================================================================*/
char *pci_dev_name(u16_t vid, u16_t did)
{
static char name[80]; /* We need a better interface for this */
int r;
cp_grant_id_t gid;
message m;
gid= cpf_grant_direct(pci_procnr, (vir_bytes)name, sizeof(name),
CPF_WRITE);
if (gid == -1)
{
printf("pci_dev_name: cpf_grant_direct failed: %d\n",
errno);
return NULL;
}
m.m_type= BUSC_PCI_DEV_NAME_S;
m.m7_i1= vid;
m.m7_i2= did;
m.m7_i3= sizeof(name);
m.m7_i4= gid;
r= ipc_sendrec(pci_procnr, &m);
cpf_revoke(gid);
if (r != 0)
panic("pci_dev_name: can't talk to PCI: %d", r);
if (m.m_type == ENOENT)
{
#ifdef DEBUG
printf("pci_dev_name: got no name\n");
#endif
return NULL; /* No name for this device */
}
if (m.m_type != 0)
panic("pci_dev_name: got bad reply from PCI: %d", m.m_type);
name[sizeof(name)-1]= '\0'; /* Make sure that the string is NUL
* terminated.
*/
#ifdef DEBUG
printf("pci_dev_name: got name %s\n", name);
#endif
return name;
}
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