diff options
Diffstat (limited to 'src/include/device/device.h')
| -rw-r--r-- | src/include/device/device.h | 44 |
1 files changed, 33 insertions, 11 deletions
diff --git a/src/include/device/device.h b/src/include/device/device.h index 21e5dfc5c8..5529abc7f2 100644 --- a/src/include/device/device.h +++ b/src/include/device/device.h @@ -3,6 +3,7 @@ #include <stdint.h> #include <device/resource.h> +#include <device/path.h> struct device; typedef struct device * device_t; @@ -10,33 +11,42 @@ typedef struct device * device_t; struct device_operations { 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 device structure for each slot-number/function-number * combination: */ struct device { - device_t bus; /* bus this device is on */ - device_t children; /* devices behind this bridge */ - device_t sibling; /* next device on this bus */ - device_t 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 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 @@ -56,6 +66,10 @@ 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; }; @@ -65,19 +79,22 @@ 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(device_t dev); -void compute_allocate_resource(device_t 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(device_t bus); -void enumerate_static_device(void); +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 */ +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); @@ -88,5 +105,10 @@ device_t 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); #endif /* DEVICE_H */ |