1 /* 2 pci_first_dev.c 3 */ 4 5 #include "pci.h" 6 #include "syslib.h" 7 #include <minix/sysutil.h> 8 9 /*===========================================================================* 10 * pci_first_dev * 11 *===========================================================================*/ 12 int pci_first_dev(devindp, vidp, didp) 13 int *devindp; 14 u16_t *vidp; 15 u16_t *didp; 16 { 17 int r; 18 message m; 19 20 m.m_type= BUSC_PCI_FIRST_DEV; 21 r= ipc_sendrec(pci_procnr, &m); 22 if (r != 0) 23 panic("pci_first_dev: can't talk to PCI: %d", r); 24 if (m.m_type == 1) 25 { 26 *devindp= m.m1_i1; 27 *vidp= m.m1_i2; 28 *didp= m.m1_i3; 29 #ifdef DEBUG 30 printf("pci_first_dev: got device %d, %04x/%04x\n", 31 *devindp, *vidp, *didp); 32 #endif 33 return 1; 34 } 35 if (m.m_type != 0) 36 panic("pci_first_dev: got bad reply from PCI: %d", m.m_type); 37 38 #ifdef DEBUG 39 printf("pci_first_dev: got nothing\n"); 40 #endif 41 return 0; 42 } 43