- 1.1.4

[coreboot.git] / src / include / device / device.h

diff --git a/src/include/device/device.h b/src/include/device/device.h
index e8bcfe512f2cd7a0fabf6254a3966b371548e727..e7b0317db3fef87fd18fca1497fa37b0e0588fed 100644 (file)
--- a/src/include/device/device.h
+++ b/src/include/device/device.h
@@ -1,38 +1,52 @@
 #ifndef DEVICE_H
 #define DEVICE_H
 
+#include <stdint.h>
 #include <device/resource.h>
+#include <device/path.h>
 
 struct device;
+typedef struct device * device_t;
+
 struct device_operations {
-       void (*read_resources)(struct device *dev);
-       void (*set_resources)(struct device *dev);
-       void (*init)(struct device *dev);
-       unsigned int (*scan_bus)(struct device *bus, unsigned int max);
+       void (*read_resources)(device_t dev);
+       void (*set_resources)(device_t dev);
+       void (*enable_resources)(device_t dev);
+       void (*init)(device_t dev);
+       unsigned int (*scan_bus)(device_t  bus, unsigned int max);
+       void (*enable)(device_t dev);
 };
 
 
+struct bus {
+       device_t        dev;            /* This bridge device */
+       device_t        children;       /* devices behind this bridge */
+       unsigned        bridge_ctrl;    /* Bridge control register */
+       unsigned char   link;           /* The index of this link */
+       unsigned char   secondary;      /* secondary bus number */
+       unsigned char   subordinate;    /* max subordinate bus number */
+       unsigned char   cap;            /* PCi capability offset */
+};
+
 #define MAX_RESOURCES 6
+#define MAX_LINKS     3
 /*
- * There is one pci_dev structure for each slot-number/function-number
+ * There is one device structure for each slot-number/function-number
  * combination:
  */
 
 struct device {
-       struct device   *bus;           /* bus this device is on */
-       struct device   *children;      /* devices behind this bridge */
-       struct device   *sibling;       /* next device on this bus */
-       struct device   *next;          /* chain of all devices */
+       struct bus *    bus;            /* bus this device is on */
+       device_t        sibling;        /* next device on this bus */
+       device_t        next;           /* chain of all devices */
 
-       unsigned int    devfn;          /* encoded device & function index */
+       struct device_path path;
        unsigned short  vendor;
        unsigned short  device;
        unsigned int    class;          /* 3 bytes: (base,sub,prog-if) */
        unsigned int    hdr_type;       /* PCI header type */
-       unsigned int    master : 1;     /* set if device is master capable */
+       unsigned int    enable : 1;     /* set if we should enable the device */
 
-       unsigned char   secondary;      /* secondary bus number */
-       unsigned char   subordinate;    /* max subordinate bus number */
        uint8_t command;
        /*
         * In theory, the irq level can be read from configuration
@@ -52,9 +66,12 @@ struct device {
         */
        struct resource resource[MAX_RESOURCES];
        unsigned int resources;
+
+       struct bus link[MAX_LINKS];
+       unsigned int links;
+
        unsigned long rom_address;
        struct device_operations *ops;
-
 };
 
 extern struct device   dev_root;       /* root bus */
@@ -62,24 +79,25 @@ extern struct device        *all_devices;   /* list of all devices */
 
 
 /* Generic device interface functions */
+extern device_t alloc_dev(struct bus *parent, struct device_path *path);
 extern void dev_enumerate(void);
 extern void dev_configure(void);
 extern void dev_enable(void);
 extern void dev_initialize(void);
 
 /* Generic device helper functions */
-void append_device(struct device *dev);
-void compute_allocate_resource(struct device *bus, struct resource *bridge,
+extern void compute_allocate_resource(struct bus *bus, struct resource *bridge,
        unsigned long type_mask, unsigned long type);
-void assign_resources(struct device *bus);
-void enumerate_static_device(void);
-unsigned long device_memory_base;
-
+extern void assign_resources(struct bus *bus);
+extern void enable_resources(struct device *dev);
+extern void enumerate_static_device(void);
+extern const char *dev_path(device_t dev);
 
 /* Helper functions */
-struct device *dev_find_device (unsigned int vendor, unsigned int device, struct device *from);
-struct device *dev_find_class (unsigned int class, struct device *from);
-struct device *dev_find_slot (unsigned int bus, unsigned int devfn);
+device_t alloc_find_dev(struct bus *bus, struct device_path *path);
+device_t dev_find_device (unsigned int vendor, unsigned int device, device_t from);
+device_t dev_find_class (unsigned int class, device_t from);
+device_t dev_find_slot (unsigned int bus, unsigned int devfn);
 
 /* Rounding for boundaries. 
  * Due to some chip bugs, go ahead and roung IO to 16
@@ -87,5 +105,11 @@ struct device *dev_find_slot (unsigned int bus, unsigned int devfn);
 #define DEVICE_IO_ALIGN 16 
 #define DEVICE_MEM_ALIGN 4096
 
+struct device_operations default_dev_ops_root;
+extern void root_dev_read_resources(device_t dev);
+extern void root_dev_set_resources(device_t dev);
+extern unsigned int walk_static_devices(device_t bus, unsigned int max);
+extern void enable_childrens_resources(device_t dev);
+extern unsigned int root_dev_scan_pci_bus(device_t root, unsigned int max);
 
 #endif /* DEVICE_H */