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  1. #ifndef PCI_H
  2. #define PCI_H
  3.  
  4. //#include <arch/types.h>
  5. #include <libadt/list.h>
  6. #include <stdio.h>
  7.  
  8. struct pci_drv;
  9. struct pci_dev;
  10. struct pci_bus;
  11. struct pci_drv_ops;
  12.  
  13. typedef struct pci_drv pci_drv_t;
  14. typedef struct pci_dev pci_dev_t;
  15. typedef struct pci_bus pci_bus_t;
  16. typedef struct pci_drv_ops pci_drv_ops_t;
  17.  
  18. struct pci_drv {
  19.     link_t link;
  20.     int vendor_id;
  21.     int device_id; 
  22.     pci_drv_ops_t *ops;
  23. };
  24.  
  25. struct pci_dev{
  26.     link_t link;
  27.     pci_bus_t *bus;
  28.     int dev;
  29.     int fn;
  30.    
  31.     int vendor_id;
  32.     int device_id;
  33.     pci_drv_t *driver; 
  34. };
  35.  
  36. struct pci_drv_ops {
  37.     int (*add_device)(pci_dev_t *dev);
  38.    
  39. };
  40.  
  41. struct pci_bus {
  42.     link_t link;
  43.     int num;
  44.     // architecture-specific usage
  45.     void *data;
  46. };
  47.  
  48. void pci_bus_register(pci_bus_t *bus);
  49. void pci_device_register(pci_dev_t *dev);
  50. void pci_driver_register(pci_drv_t *drv);
  51.  
  52. void pci_bus_scan(pci_bus_t *bus);
  53.  
  54. static inline pci_bus_t* pci_alloc_bus()
  55. {
  56.     pci_bus_t *bus = (pci_bus_t *)malloc(sizeof(pci_bus_t));
  57.     link_initialize(&bus->link);
  58.     bus->num = 0;
  59.     bus->data = NULL;
  60.     return bus;
  61. }
  62.  
  63. // arch. spec. initialization of pci bus structure - of its data member
  64. void pci_init_bus_data(pci_bus_t *bus, pci_bus_t *parent);
  65.  
  66. static inline void pci_init_bus(pci_bus_t *bus, pci_bus_t *parent, int bus_num)
  67. {
  68.     bus->num = bus_num;
  69.     pci_init_bus_data(bus, parent);
  70. }
  71.  
  72. static inline void pci_free_bus(pci_bus_t *bus)
  73. {
  74.     free(bus);
  75. }
  76.  
  77. static inline pci_dev_t* pci_alloc_dev()
  78. {
  79.     pci_dev_t *dev = (pci_dev_t *)malloc(sizeof(pci_dev_t));
  80.     bzero(dev, sizeof(pci_dev_t));
  81.     link_initialize(&dev->link);   
  82.     return dev;
  83. }
  84.  
  85. static inline void pci_init_dev(pci_dev_t *dev, pci_bus_t *bus, int devnum, int fn)
  86. {
  87.     dev->bus = bus;
  88.     dev->dev = devnum;
  89.     dev->fn = fn;
  90. }
  91.  
  92. static inline void pci_free_dev(pci_dev_t *dev)
  93. {
  94.     free(dev);
  95. }
  96.  
  97. #endif
  98.