src/add-ons/kernel/bus_managers/pci/pci_private.h

   1 /*
   2  * Copyright 2005-2008, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
   3  * Copyright 2003-2006, Marcus Overhagen. All rights reserved.
   4  *
   5  * Distributed under the terms of the MIT License.
   6  */
   7 #ifndef __PCI_PRIV_H__
   8 #define __PCI_PRIV_H__
   9
  10
  11 #include <KernelExport.h>
  12 #include <device_manager.h>
  13 #include <bus/PCI.h>
  14
  15 // name of PCI legacy driver endpoint module
  16 #define PCI_LEGACY_DRIVER_MODULE_NAME "bus_managers/pci/legacy_v1"
  17
  18 // name of PCI device modules
  19 #define PCI_DEVICE_MODULE_NAME "bus_managers/pci/driver_v1"
  20
  21 extern device_manager_info *gDeviceManager;
  22
  23
  24 // PCI root.
  25 // apart from being the common parent of all PCI devices, it
  26 // manages access to PCI config space
  27 typedef struct pci_root_module_info {
  28         driver_module_info info;
  29
  30         // read PCI config space
  31         uint32 (*read_pci_config)(uint8 bus, uint8 device, uint8 function,
  32                                 uint16 offset, uint8 size);
  33
  34         // write PCI config space
  35         void (*write_pci_config)(uint8 bus, uint8 device, uint8 function,
  36                                 uint16 offset, uint8 size, uint32 value);
  37 } pci_root_module_info;
  38
  39 extern pci_root_module_info gPCIRootModule;
  40 extern pci_device_module_info gPCIDeviceModule;
  41
  42
  43 #ifdef __cplusplus
  44 extern "C" {
  45 #endif
  46
  47 void *          pci_ram_address(const void *physical_address_in_system_memory);
  48
  49 status_t        pci_find_capability(uint8 bus, uint8 device, uint8 function,
  50         uint8 cap_id, uint8 *offset);
  51 status_t        pci_find_extended_capability(uint8 bus, uint8 device, uint8 function,
  52         uint16 cap_id, uint16 *offset);
  53
  54 status_t        pci_reserve_device(uchar virtualBus, uchar device, uchar function,
  55                         const char *driverName, void *nodeCookie);
  56 status_t        pci_unreserve_device(uchar virtualBus, uchar device, uchar function,
  57                         const char *driverName, void *nodeCookie);
  58
  59 status_t        pci_update_interrupt_line(uchar virtualBus, uchar device,
  60                                 uchar function, uchar newInterruptLineValue);
  61
  62 status_t        pci_io_init(void);
  63 uint8           pci_read_io_8(int mapped_io_addr);
  64 void            pci_write_io_8(int mapped_io_addr, uint8 value);
  65 uint16          pci_read_io_16(int mapped_io_addr);
  66 void            pci_write_io_16(int mapped_io_addr, uint16 value);
  67 uint32          pci_read_io_32(int mapped_io_addr);
  68 void            pci_write_io_32(int mapped_io_addr, uint32 value);
  69
  70 #ifdef __cplusplus
  71 }
  72 #endif
  73
  74 #endif  /* __PCI_PRIV_H__ */