1 #include <sys/cdefs.h> 2 __KERNEL_RCSID(0, "$NetBSD: pci_stub.c,v 1.4 2015/10/22 09:45:32 knakahara Exp $"); 3 4 #ifdef _KERNEL_OPT 5 #include "opt_pci.h" 6 #endif 7 8 #include <sys/param.h> 9 #include <sys/systm.h> 10 #include <sys/kmem.h> 11 12 #include <dev/pci/pcireg.h> 13 #include <dev/pci/pcivar.h> 14 #include <dev/pci/pcidevs.h> 15 16 int default_pci_bus_devorder(pci_chipset_tag_t, int, uint8_t *, int); 17 int default_pci_chipset_tag_create(pci_chipset_tag_t, uint64_t, 18 const struct pci_overrides *, void *, pci_chipset_tag_t *); 19 void default_pci_chipset_tag_destroy(pci_chipset_tag_t); 20 pci_intr_type_t default_pci_intr_type(pci_intr_handle_t); 21 int default_pci_intr_alloc(const struct pci_attach_args *, 22 pci_intr_handle_t **, int *, pci_intr_type_t); 23 void default_pci_intr_release(pci_chipset_tag_t, pci_intr_handle_t *, int); 24 void *default_pci_intr_establish_xname(pci_chipset_tag_t, pci_intr_handle_t, 25 int, int (*)(void *), void *, const char *); 26 27 __strict_weak_alias(pci_bus_devorder, default_pci_bus_devorder); 28 __strict_weak_alias(pci_chipset_tag_create, default_pci_chipset_tag_create); 29 __strict_weak_alias(pci_chipset_tag_destroy, default_pci_chipset_tag_destroy); 30 31 __strict_weak_alias(pci_intr_type, default_pci_intr_type); 32 __strict_weak_alias(pci_intr_alloc, default_pci_intr_alloc); 33 __strict_weak_alias(pci_intr_release, default_pci_intr_release); 34 __strict_weak_alias(pci_intr_establish_xname, default_pci_intr_establish_xname); 35 36 int 37 default_pci_bus_devorder(pci_chipset_tag_t pc, int bus, uint8_t *devs, 38 int maxdevs) 39 { 40 int i, n; 41 42 n = MIN(pci_bus_maxdevs(pc, bus), maxdevs); 43 for (i = 0; i < n; i++) 44 devs[i] = i; 45 46 return n; 47 } 48 49 void 50 default_pci_chipset_tag_destroy(pci_chipset_tag_t pc) 51 { 52 } 53 54 int 55 default_pci_chipset_tag_create(pci_chipset_tag_t opc, const uint64_t present, 56 const struct pci_overrides *ov, void *ctx, pci_chipset_tag_t *pcp) 57 { 58 return EOPNOTSUPP; 59 } 60 61 pci_intr_type_t 62 default_pci_intr_type(pci_intr_handle_t ih) 63 { 64 65 return PCI_INTR_TYPE_INTX; 66 } 67 68 int 69 default_pci_intr_alloc(const struct pci_attach_args *pa, 70 pci_intr_handle_t **ihps, int *counts, pci_intr_type_t max_type) 71 { 72 pci_intr_handle_t *ihp; 73 74 if (counts != NULL && counts[PCI_INTR_TYPE_INTX] == 0) 75 return EINVAL; 76 77 ihp = kmem_alloc(sizeof(*ihp), KM_SLEEP); 78 if (ihp == NULL) 79 return ENOMEM; 80 81 if (pci_intr_map(pa, ihp)) { 82 kmem_free(ihp, sizeof(*ihp)); 83 return EINVAL; 84 } 85 86 ihps[0] = ihp; 87 return 0; 88 } 89 90 void 91 default_pci_intr_release(pci_chipset_tag_t pc, pci_intr_handle_t *pih, 92 int count) 93 { 94 95 kmem_free(pih, sizeof(*pih)); 96 } 97 98 void * 99 default_pci_intr_establish_xname(pci_chipset_tag_t pc, pci_intr_handle_t ih, 100 int level, int (*func)(void *), void *arg, const char *__nouse) 101 { 102 103 return pci_intr_establish(pc, ih, level, func, arg); 104 } 105