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 extern device_node* gPCIRootNode; 43 44 45 #ifdef __cplusplus 46 extern "C" { 47 #endif 48 49 phys_addr_t pci_ram_address(phys_addr_t physical_address_in_system_memory); 50 51 status_t pci_find_capability(uint8 bus, uint8 device, uint8 function, 52 uint8 cap_id, uint8 *offset); 53 status_t pci_find_extended_capability(uint8 bus, uint8 device, uint8 function, 54 uint16 cap_id, uint16 *offset); 55 56 status_t pci_reserve_device(uchar virtualBus, uchar device, uchar function, 57 const char *driverName, void *nodeCookie); 58 status_t pci_unreserve_device(uchar virtualBus, uchar device, uchar function, 59 const char *driverName, void *nodeCookie); 60 61 status_t pci_update_interrupt_line(uchar virtualBus, uchar device, 62 uchar function, uchar newInterruptLineValue); 63 status_t pci_get_powerstate(uchar virtualBus, uint8 device, 64 uint8 function, uint8* state); 65 status_t pci_set_powerstate(uchar virtualBus, uint8 device, 66 uint8 function, uint8 newState); 67 68 status_t pci_io_init(void); 69 uint8 pci_read_io_8(int mapped_io_addr); 70 void pci_write_io_8(int mapped_io_addr, uint8 value); 71 uint16 pci_read_io_16(int mapped_io_addr); 72 void pci_write_io_16(int mapped_io_addr, uint16 value); 73 uint32 pci_read_io_32(int mapped_io_addr); 74 void pci_write_io_32(int mapped_io_addr, uint32 value); 75 76 #ifdef __cplusplus 77 } 78 #endif 79 80 #endif /* __PCI_PRIV_H__ */ 81