5 #include <device/resource.h>
6 #include <device/path.h>
10 typedef struct device * device_t;
11 struct pci_operations;
12 struct pci_bus_operations;
13 struct smbus_bus_operations;
16 struct chip_operations {
17 void (*enable_dev)(struct device *dev);
18 #if CONFIG_CHIP_NAME == 1
23 #if CONFIG_CHIP_NAME == 1
24 #define CHIP_NAME(X) .name = X,
29 struct device_operations {
30 void (*read_resources)(device_t dev);
31 void (*set_resources)(device_t dev);
32 void (*enable_resources)(device_t dev);
33 void (*init)(device_t dev);
34 unsigned int (*scan_bus)(device_t bus, unsigned int max);
35 void (*enable)(device_t dev);
36 const struct pci_operations *ops_pci;
37 const struct smbus_bus_operations *ops_smbus_bus;
38 const struct pci_bus_operations *ops_pci_bus;
43 device_t dev; /* This bridge device */
44 device_t children; /* devices behind this bridge */
45 unsigned bridge_ctrl; /* Bridge control register */
46 unsigned char link; /* The index of this link */
47 unsigned char secondary; /* secondary bus number */
48 unsigned char subordinate; /* max subordinate bus number */
49 unsigned char cap; /* PCi capability offset */
52 #define MAX_RESOURCES 12
55 * There is one device structure for each slot-number/function-number
60 struct bus * bus; /* bus this device is on, for bridge
61 * devices, it is the up stream bus */
62 device_t sibling; /* next device on this bus */
63 device_t next; /* chain of all devices */
65 struct device_path path;
68 unsigned int class; /* 3 bytes: (base,sub,prog-if) */
69 unsigned int hdr_type; /* PCI header type */
70 unsigned int enabled : 1; /* set if we should enable the device */
71 unsigned int initialized : 1; /* set if we have initialized the device */
72 unsigned int have_resources : 1; /* Set if we have read the devices resources */
73 unsigned int on_mainboard : 1;
77 /* Base registers for this device, can be adjusted by
78 * pcibios_fixup() as necessary.
80 struct resource resource[MAX_RESOURCES];
81 unsigned int resources;
83 /* link are (down sream) buses attached to the device, usually a leaf
84 * device with no child have 0 bus attached and a bridge has 1 bus */
85 struct bus link[MAX_LINKS];
86 /* number of buses attached to the device */
89 unsigned long rom_address;
90 struct device_operations *ops;
91 struct chip_operations *chip_ops;
95 extern struct device dev_root; /* root bus */
96 extern struct device *all_devices; /* list of all devices */
99 /* Generic device interface functions */
100 extern device_t alloc_dev(struct bus *parent, struct device_path *path);
101 extern void dev_enumerate(void);
102 extern void dev_configure(void);
103 extern void dev_enable(void);
104 extern void dev_initialize(void);
106 /* Generic device helper functions */
107 extern void compute_allocate_resource(struct bus *bus, struct resource *bridge,
108 unsigned long type_mask, unsigned long type);
109 extern void assign_resources(struct bus *bus);
110 extern void enable_resources(struct device *dev);
111 extern void enumerate_static_device(void);
112 extern void enumerate_static_devices(void);
113 extern const char *dev_path(device_t dev);
115 /* Helper functions */
116 device_t find_dev_path(struct bus *parent, struct device_path *path);
117 device_t alloc_find_dev(struct bus *parent, struct device_path *path);
118 device_t dev_find_device (unsigned int vendor, unsigned int device, device_t from);
119 device_t dev_find_class (unsigned int class, device_t from);
120 device_t dev_find_slot (unsigned int bus, unsigned int devfn);
122 /* Rounding for boundaries.
123 * Due to some chip bugs, go ahead and roung IO to 16
125 #define DEVICE_IO_ALIGN 16
126 #define DEVICE_MEM_ALIGN 4096
128 struct device_operations default_dev_ops_root;
129 extern void root_dev_read_resources(device_t dev);
130 extern void root_dev_set_resources(device_t dev);
131 extern unsigned int scan_static_bus(device_t bus, unsigned int max);
132 extern void enable_childrens_resources(device_t dev);
133 extern void root_dev_enable_resources(device_t dev);
134 extern unsigned int root_dev_scan_bus(device_t root, unsigned int max);
135 extern void root_dev_init(device_t dev);
137 #endif /* DEVICE_H */