5 #include <device/resource.h>
6 #include <device/path.h>
10 typedef struct device * device_t;
11 struct pci_operations;
12 struct smbus_bus_operations;
15 struct chip_operations {
16 void (*enable_dev)(struct device *dev);
19 struct device_operations {
20 void (*read_resources)(device_t dev);
21 void (*set_resources)(device_t dev);
22 void (*enable_resources)(device_t dev);
23 void (*init)(device_t dev);
24 unsigned int (*scan_bus)(device_t bus, unsigned int max);
25 void (*enable)(device_t dev);
26 struct pci_operations *ops_pci;
27 struct smbus_bus_operations *ops_smbus_bus;
32 device_t dev; /* This bridge device */
33 device_t children; /* devices behind this bridge */
34 unsigned bridge_ctrl; /* Bridge control register */
35 unsigned char link; /* The index of this link */
36 unsigned char secondary; /* secondary bus number */
37 unsigned char subordinate; /* max subordinate bus number */
38 unsigned char cap; /* PCi capability offset */
41 #define MAX_RESOURCES 12
44 * There is one device structure for each slot-number/function-number
49 struct bus * bus; /* bus this device is on */
50 device_t sibling; /* next device on this bus */
51 device_t next; /* chain of all devices */
53 struct device_path path;
56 unsigned int class; /* 3 bytes: (base,sub,prog-if) */
57 unsigned int hdr_type; /* PCI header type */
58 unsigned int enabled : 1; /* set if we should enable the device */
59 unsigned int initialized : 1; /* set if we have initialized the device */
60 unsigned int have_resources : 1; /* Set if we have read the devices resources */
61 unsigned int on_mainboard : 1;
65 /* Base registers for this device, can be adjusted by
66 * pcibios_fixup() as necessary.
68 struct resource resource[MAX_RESOURCES];
69 unsigned int resources;
71 struct bus link[MAX_LINKS];
74 unsigned long rom_address;
75 struct device_operations *ops;
76 struct chip_operations *chip_ops;
80 extern struct device dev_root; /* root bus */
81 extern struct device *all_devices; /* list of all devices */
84 /* Generic device interface functions */
85 extern device_t alloc_dev(struct bus *parent, struct device_path *path);
86 extern void dev_enumerate(void);
87 extern void dev_configure(void);
88 extern void dev_enable(void);
89 extern void dev_initialize(void);
91 /* Generic device helper functions */
92 extern void compute_allocate_resource(struct bus *bus, struct resource *bridge,
93 unsigned long type_mask, unsigned long type);
94 extern void assign_resources(struct bus *bus);
95 extern void enable_resources(struct device *dev);
96 extern void enumerate_static_device(void);
97 extern void enumerate_static_devices(void);
98 extern const char *dev_path(device_t dev);
100 /* Helper functions */
101 device_t find_dev_path(struct bus *parent, struct device_path *path);
102 device_t alloc_find_dev(struct bus *parent, struct device_path *path);
103 device_t dev_find_device (unsigned int vendor, unsigned int device, device_t from);
104 device_t dev_find_class (unsigned int class, device_t from);
105 device_t dev_find_slot (unsigned int bus, unsigned int devfn);
107 /* Rounding for boundaries.
108 * Due to some chip bugs, go ahead and roung IO to 16
110 #define DEVICE_IO_ALIGN 16
111 #define DEVICE_MEM_ALIGN 4096
113 struct device_operations default_dev_ops_root;
114 extern void root_dev_read_resources(device_t dev);
115 extern void root_dev_set_resources(device_t dev);
116 extern unsigned int scan_static_bus(device_t bus, unsigned int max);
117 extern void enable_childrens_resources(device_t dev);
118 extern void root_dev_enable_resources(device_t dev);
119 extern unsigned int root_dev_scan_bus(device_t root, unsigned int max);
120 extern void root_dev_init(device_t dev);
122 #endif /* DEVICE_H */