Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 1 | #ifndef DEVICE_H |
| 2 | #define DEVICE_H |
| 3 | |
Eric Biederman | 9bdb460 | 2003-09-01 23:17:58 +0000 | [diff] [blame] | 4 | #include <stdint.h> |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 5 | #include <device/resource.h> |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 6 | #include <device/path.h> |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 7 | |
| 8 | struct device; |
Eric Biederman | 7a5416a | 2003-06-12 19:23:51 +0000 | [diff] [blame] | 9 | typedef struct device * device_t; |
Eric Biederman | 992cd00 | 2004-10-14 21:10:23 +0000 | [diff] [blame^] | 10 | struct pci_operations; |
| 11 | struct smbus_bus_operations; |
Eric Biederman | 7a5416a | 2003-06-12 19:23:51 +0000 | [diff] [blame] | 12 | |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 13 | struct device_operations { |
Eric Biederman | 7a5416a | 2003-06-12 19:23:51 +0000 | [diff] [blame] | 14 | void (*read_resources)(device_t dev); |
| 15 | void (*set_resources)(device_t dev); |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 16 | void (*enable_resources)(device_t dev); |
Eric Biederman | 7a5416a | 2003-06-12 19:23:51 +0000 | [diff] [blame] | 17 | void (*init)(device_t dev); |
| 18 | unsigned int (*scan_bus)(device_t bus, unsigned int max); |
Eric Biederman | 4086d16 | 2003-07-17 03:26:03 +0000 | [diff] [blame] | 19 | void (*enable)(device_t dev); |
Eric Biederman | 992cd00 | 2004-10-14 21:10:23 +0000 | [diff] [blame^] | 20 | struct pci_operations *ops_pci; |
| 21 | struct smbus_bus_operations *ops_smbus_bus; |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 22 | }; |
| 23 | |
| 24 | |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 25 | struct bus { |
| 26 | device_t dev; /* This bridge device */ |
| 27 | device_t children; /* devices behind this bridge */ |
| 28 | unsigned bridge_ctrl; /* Bridge control register */ |
| 29 | unsigned char link; /* The index of this link */ |
| 30 | unsigned char secondary; /* secondary bus number */ |
| 31 | unsigned char subordinate; /* max subordinate bus number */ |
| 32 | unsigned char cap; /* PCi capability offset */ |
| 33 | }; |
| 34 | |
Eric Biederman | 992cd00 | 2004-10-14 21:10:23 +0000 | [diff] [blame^] | 35 | #define MAX_RESOURCES 12 |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 36 | #define MAX_LINKS 3 |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 37 | /* |
Eric Biederman | 2c018fb | 2003-07-21 20:13:45 +0000 | [diff] [blame] | 38 | * There is one device structure for each slot-number/function-number |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 39 | * combination: |
| 40 | */ |
| 41 | |
Eric Biederman | 83b991a | 2003-10-11 06:20:25 +0000 | [diff] [blame] | 42 | struct chip; |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 43 | struct device { |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 44 | struct bus * bus; /* bus this device is on */ |
| 45 | device_t sibling; /* next device on this bus */ |
| 46 | device_t next; /* chain of all devices */ |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 47 | |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 48 | struct device_path path; |
Eric Biederman | b78c197 | 2004-10-14 20:54:17 +0000 | [diff] [blame] | 49 | unsigned vendor; |
| 50 | unsigned device; |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 51 | unsigned int class; /* 3 bytes: (base,sub,prog-if) */ |
| 52 | unsigned int hdr_type; /* PCI header type */ |
Li-Ta Lo | 69c5a90 | 2004-04-29 20:08:54 +0000 | [diff] [blame] | 53 | unsigned int enabled : 1; /* set if we should enable the device */ |
Eric Biederman | 992cd00 | 2004-10-14 21:10:23 +0000 | [diff] [blame^] | 54 | unsigned int initialized : 1; /* set if we have initialized the device */ |
| 55 | unsigned int have_resources : 1; /* Set if we have read the devices resources */ |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 56 | |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 57 | uint8_t command; |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 58 | |
| 59 | /* Base registers for this device, can be adjusted by |
| 60 | * pcibios_fixup() as necessary. |
| 61 | */ |
| 62 | struct resource resource[MAX_RESOURCES]; |
| 63 | unsigned int resources; |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 64 | |
| 65 | struct bus link[MAX_LINKS]; |
| 66 | unsigned int links; |
| 67 | |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 68 | unsigned long rom_address; |
| 69 | struct device_operations *ops; |
Eric Biederman | 83b991a | 2003-10-11 06:20:25 +0000 | [diff] [blame] | 70 | struct chip *chip; |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 71 | }; |
| 72 | |
| 73 | extern struct device dev_root; /* root bus */ |
| 74 | extern struct device *all_devices; /* list of all devices */ |
| 75 | |
| 76 | |
| 77 | /* Generic device interface functions */ |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 78 | extern device_t alloc_dev(struct bus *parent, struct device_path *path); |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 79 | extern void dev_enumerate(void); |
| 80 | extern void dev_configure(void); |
| 81 | extern void dev_enable(void); |
| 82 | extern void dev_initialize(void); |
| 83 | |
| 84 | /* Generic device helper functions */ |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 85 | extern void compute_allocate_resource(struct bus *bus, struct resource *bridge, |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 86 | unsigned long type_mask, unsigned long type); |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 87 | extern void assign_resources(struct bus *bus); |
| 88 | extern void enable_resources(struct device *dev); |
| 89 | extern void enumerate_static_device(void); |
Greg Watson | 23e2e18 | 2004-03-26 02:32:45 +0000 | [diff] [blame] | 90 | extern void enumerate_static_devices(void); |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 91 | extern const char *dev_path(device_t dev); |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 92 | |
| 93 | /* Helper functions */ |
Eric Biederman | 992cd00 | 2004-10-14 21:10:23 +0000 | [diff] [blame^] | 94 | device_t find_dev_path(struct bus *parent, struct device_path *path); |
Eric Biederman | 83b991a | 2003-10-11 06:20:25 +0000 | [diff] [blame] | 95 | device_t alloc_find_dev(struct bus *parent, struct device_path *path); |
Eric Biederman | 7a5416a | 2003-06-12 19:23:51 +0000 | [diff] [blame] | 96 | device_t dev_find_device (unsigned int vendor, unsigned int device, device_t from); |
| 97 | device_t dev_find_class (unsigned int class, device_t from); |
| 98 | device_t dev_find_slot (unsigned int bus, unsigned int devfn); |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 99 | |
| 100 | /* Rounding for boundaries. |
| 101 | * Due to some chip bugs, go ahead and roung IO to 16 |
| 102 | */ |
| 103 | #define DEVICE_IO_ALIGN 16 |
| 104 | #define DEVICE_MEM_ALIGN 4096 |
| 105 | |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 106 | struct device_operations default_dev_ops_root; |
| 107 | extern void root_dev_read_resources(device_t dev); |
| 108 | extern void root_dev_set_resources(device_t dev); |
Li-Ta Lo | 89666e4 | 2004-05-07 21:54:23 +0000 | [diff] [blame] | 109 | extern unsigned int scan_static_bus(device_t bus, unsigned int max); |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 110 | extern void enable_childrens_resources(device_t dev); |
Eric Biederman | 992cd00 | 2004-10-14 21:10:23 +0000 | [diff] [blame^] | 111 | extern void root_dev_enable_resources(device_t dev); |
| 112 | extern unsigned int root_dev_scan_bus(device_t root, unsigned int max); |
| 113 | extern void root_dev_init(device_t dev); |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 114 | |
| 115 | #endif /* DEVICE_H */ |