source: trunk/minix/lib/syslib/pci_dev_name.c@ 20

/*
pci_dev_name.c
*/

#include "pci.h"
#include "syslib.h"
#include <minix/sysutil.h>

/*===========================================================================*
 *                              pci_dev_name                                 *
 *===========================================================================*/
PUBLIC char *pci_dev_name(vid, did)
u16_t vid;
u16_t did;
{
        static char name[80];   /* We need a better interface for this */

        int r;
        message m;

        m.m_type= BUSC_PCI_DEV_NAME;
        m.m1_i1= vid;
        m.m1_i2= did;
        m.m1_i3= sizeof(name);
        m.m1_p1= name;

        r= sendrec(pci_procnr, &m);
        if (r != 0)
                panic("pci", "pci_dev_name: can't talk to PCI", r);

        if (m.m_type == ENOENT)
        {
                printf("pci_dev_name: got no name\n");
                return NULL;    /* No name for this device */
        }
        if (m.m_type != 0)
                panic("pci", "pci_dev_name: got bad reply from PCI", m.m_type);

        name[sizeof(name)-1]= '\0';     /* Make sure that the string is NUL
                                         * terminated.
                                         */

#if DEBUG
        printf("pci_dev_name: got name %s\n", name);
#endif
        return name;
}