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 void (*set_link)(device_t dev, unsigned int link);
37 const struct pci_operations *ops_pci;
38 const struct smbus_bus_operations *ops_smbus_bus;
39 const struct pci_bus_operations *ops_pci_bus;
44 device_t dev; /* This bridge device */
45 device_t children; /* devices behind this bridge */
46 unsigned bridge_ctrl; /* Bridge control register */
47 unsigned char link; /* The index of this link */
48 unsigned char secondary; /* secondary bus number */
49 unsigned char subordinate; /* max subordinate bus number */
50 unsigned char cap; /* PCi capability offset */
53 #define MAX_RESOURCES 12
56 * There is one device structure for each slot-number/function-number
61 struct bus * bus; /* bus this device is on, for bridge
62 * devices, it is the up stream bus */
63 device_t sibling; /* next device on this bus */
64 device_t next; /* chain of all devices */
66 struct device_path path;
69 unsigned int class; /* 3 bytes: (base,sub,prog-if) */
70 unsigned int hdr_type; /* PCI header type */
71 unsigned int enabled : 1; /* set if we should enable the device */
72 unsigned int initialized : 1; /* set if we have initialized the device */
73 unsigned int have_resources : 1; /* Set if we have read the devices resources */
74 unsigned int on_mainboard : 1;
75 unsigned long rom_address;
79 /* Base registers for this device. I/O, MEM and Expansion ROM */
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 struct device_operations *ops;
90 struct chip_operations *chip_ops;
94 extern struct device dev_root; /* root bus */
95 extern struct device *all_devices; /* list of all devices */
98 /* Generic device interface functions */
99 extern device_t alloc_dev(struct bus *parent, struct device_path *path);
100 extern void dev_enumerate(void);
101 extern void dev_configure(void);
102 extern void dev_enable(void);
103 extern void dev_initialize(void);
105 /* Generic device helper functions */
106 extern void compute_allocate_resource(struct bus *bus, struct resource *bridge,
107 unsigned long type_mask, unsigned long type);
108 extern void assign_resources(struct bus *bus);
109 extern void enable_resources(struct device *dev);
110 extern void enumerate_static_device(void);
111 extern void enumerate_static_devices(void);
112 extern const char *dev_path(device_t dev);
114 /* Helper functions */
115 device_t find_dev_path(struct bus *parent, struct device_path *path);
116 device_t alloc_find_dev(struct bus *parent, struct device_path *path);
117 device_t dev_find_device (unsigned int vendor, unsigned int device, device_t from);
118 device_t dev_find_class (unsigned int class, device_t from);
119 device_t dev_find_slot (unsigned int bus, unsigned int devfn);
120 device_t dev_find_slot_on_smbus (unsigned int bus, unsigned int addr);
123 /* Rounding for boundaries.
124 * Due to some chip bugs, go ahead and roung IO to 16
126 #define DEVICE_IO_ALIGN 16
127 #define DEVICE_MEM_ALIGN 4096
129 struct device_operations default_dev_ops_root;
130 extern void root_dev_read_resources(device_t dev);
131 extern void root_dev_set_resources(device_t dev);
132 extern unsigned int scan_static_bus(device_t bus, unsigned int max);
133 extern void enable_childrens_resources(device_t dev);
134 extern void root_dev_enable_resources(device_t dev);
135 extern unsigned int root_dev_scan_bus(device_t root, unsigned int max);
136 extern void root_dev_init(device_t dev);
138 #endif /* DEVICE_H */