hw/xen-host-pci-device.h

   1 #ifndef XEN_HOST_PCI_DEVICE_H
   2 #define XEN_HOST_PCI_DEVICE_H
   3
   4 #include "pci/pci.h"
   5
   6 enum {
   7     XEN_HOST_PCI_REGION_TYPE_IO = 1 << 1,
   8     XEN_HOST_PCI_REGION_TYPE_MEM = 1 << 2,
   9     XEN_HOST_PCI_REGION_TYPE_PREFETCH = 1 << 3,
  10     XEN_HOST_PCI_REGION_TYPE_MEM_64 = 1 << 4,
  11 };
  12
  13 typedef struct XenHostPCIIORegion {
  14     pcibus_t base_addr;
  15     pcibus_t size;
  16     uint8_t type;
  17     uint8_t bus_flags; /* Bus-specific bits */
  18 } XenHostPCIIORegion;
  19
  20 typedef struct XenHostPCIDevice {
  21     uint16_t domain;
  22     uint8_t bus;
  23     uint8_t dev;
  24     uint8_t func;
  25
  26     uint16_t vendor_id;
  27     uint16_t device_id;
  28     int irq;
  29
  30     XenHostPCIIORegion io_regions[PCI_NUM_REGIONS - 1];
  31     XenHostPCIIORegion rom;
  32
  33     bool is_virtfn;
  34
  35     int config_fd;
  36 } XenHostPCIDevice;
  37
  38 int xen_host_pci_device_get(XenHostPCIDevice *d, uint16_t domain,
  39                             uint8_t bus, uint8_t dev, uint8_t func);
  40 void xen_host_pci_device_put(XenHostPCIDevice *pci_dev);
  41
  42 int xen_host_pci_get_byte(XenHostPCIDevice *d, int pos, uint8_t *p);
  43 int xen_host_pci_get_word(XenHostPCIDevice *d, int pos, uint16_t *p);
  44 int xen_host_pci_get_long(XenHostPCIDevice *d, int pos, uint32_t *p);
  45 int xen_host_pci_get_block(XenHostPCIDevice *d, int pos, uint8_t *buf,
  46                            int len);
  47 int xen_host_pci_set_byte(XenHostPCIDevice *d, int pos, uint8_t data);
  48 int xen_host_pci_set_word(XenHostPCIDevice *d, int pos, uint16_t data);
  49 int xen_host_pci_set_long(XenHostPCIDevice *d, int pos, uint32_t data);
  50 int xen_host_pci_set_block(XenHostPCIDevice *d, int pos, uint8_t *buf,
  51                            int len);
  52
  53 int xen_host_pci_find_ext_cap_offset(XenHostPCIDevice *s, uint32_t cap);
  54
  55 #endif /* !XEN_HOST_PCI_DEVICE_H_ */