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 | |
Eric Biederman | 7003ba4 | 2004-10-16 06:20:29 +0000 | [diff] [blame] | 8 | |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 9 | struct device; |
Eric Biederman | 7a5416a | 2003-06-12 19:23:51 +0000 | [diff] [blame] | 10 | typedef struct device * device_t; |
Eric Biederman | 992cd00 | 2004-10-14 21:10:23 +0000 | [diff] [blame] | 11 | struct pci_operations; |
Eric Biederman | a9e632c | 2004-11-18 22:38:08 +0000 | [diff] [blame] | 12 | struct pci_bus_operations; |
Eric Biederman | 992cd00 | 2004-10-14 21:10:23 +0000 | [diff] [blame] | 13 | struct smbus_bus_operations; |
Eric Biederman | 7a5416a | 2003-06-12 19:23:51 +0000 | [diff] [blame] | 14 | |
Eric Biederman | 7003ba4 | 2004-10-16 06:20:29 +0000 | [diff] [blame] | 15 | /* Chip operations */ |
| 16 | struct chip_operations { |
Eric Biederman | 7003ba4 | 2004-10-16 06:20:29 +0000 | [diff] [blame] | 17 | void (*enable_dev)(struct device *dev); |
Eric Biederman | 018d8dd | 2004-11-04 11:04:33 +0000 | [diff] [blame] | 18 | #if CONFIG_CHIP_NAME == 1 |
| 19 | char *name; |
| 20 | #endif |
Eric Biederman | 7003ba4 | 2004-10-16 06:20:29 +0000 | [diff] [blame] | 21 | }; |
| 22 | |
Eric Biederman | 018d8dd | 2004-11-04 11:04:33 +0000 | [diff] [blame] | 23 | #if CONFIG_CHIP_NAME == 1 |
| 24 | #define CHIP_NAME(X) .name = X, |
| 25 | #else |
| 26 | #define CHIP_NAME(X) |
| 27 | #endif |
| 28 | |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 29 | struct device_operations { |
Eric Biederman | 7a5416a | 2003-06-12 19:23:51 +0000 | [diff] [blame] | 30 | void (*read_resources)(device_t dev); |
| 31 | void (*set_resources)(device_t dev); |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 32 | void (*enable_resources)(device_t dev); |
Eric Biederman | 7a5416a | 2003-06-12 19:23:51 +0000 | [diff] [blame] | 33 | void (*init)(device_t dev); |
Eric Biederman | a9e632c | 2004-11-18 22:38:08 +0000 | [diff] [blame] | 34 | unsigned int (*scan_bus)(device_t bus, unsigned int max); |
Eric Biederman | 4086d16 | 2003-07-17 03:26:03 +0000 | [diff] [blame] | 35 | void (*enable)(device_t dev); |
Yinghai Lu | 7213d0f | 2004-12-03 03:39:04 +0000 | [diff] [blame] | 36 | void (*set_link)(device_t dev, unsigned int link); |
Eric Biederman | a9e632c | 2004-11-18 22:38:08 +0000 | [diff] [blame] | 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; |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 40 | }; |
| 41 | |
| 42 | |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 43 | struct 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 */ |
| 51 | }; |
| 52 | |
Eric Biederman | 992cd00 | 2004-10-14 21:10:23 +0000 | [diff] [blame] | 53 | #define MAX_RESOURCES 12 |
Yinghai Lu | 7213d0f | 2004-12-03 03:39:04 +0000 | [diff] [blame] | 54 | #define MAX_LINKS 8 |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 55 | /* |
Eric Biederman | 2c018fb | 2003-07-21 20:13:45 +0000 | [diff] [blame] | 56 | * There is one device structure for each slot-number/function-number |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 57 | * combination: |
| 58 | */ |
| 59 | |
| 60 | struct device { |
Li-Ta Lo | 0493069 | 2004-11-25 17:37:19 +0000 | [diff] [blame] | 61 | struct bus * bus; /* bus this device is on, for bridge |
| 62 | * devices, it is the up stream bus */ |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 63 | device_t sibling; /* next device on this bus */ |
| 64 | device_t next; /* chain of all devices */ |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 65 | |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 66 | struct device_path path; |
Eric Biederman | b78c197 | 2004-10-14 20:54:17 +0000 | [diff] [blame] | 67 | unsigned vendor; |
| 68 | unsigned device; |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 69 | unsigned int class; /* 3 bytes: (base,sub,prog-if) */ |
| 70 | unsigned int hdr_type; /* PCI header type */ |
Li-Ta Lo | 69c5a90 | 2004-04-29 20:08:54 +0000 | [diff] [blame] | 71 | unsigned int enabled : 1; /* set if we should enable the device */ |
Eric Biederman | 992cd00 | 2004-10-14 21:10:23 +0000 | [diff] [blame] | 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 */ |
Eric Biederman | dbec2d4 | 2004-10-21 10:44:08 +0000 | [diff] [blame] | 74 | unsigned int on_mainboard : 1; |
Yinghai Lu | 77cbb99 | 2005-01-13 03:36:38 +0000 | [diff] [blame^] | 75 | unsigned long rom_address; |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 76 | |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 77 | uint8_t command; |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 78 | |
Li-Ta Lo | 85e76c6 | 2004-12-27 17:53:45 +0000 | [diff] [blame] | 79 | /* Base registers for this device. I/O, MEM and Expansion ROM */ |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 80 | struct resource resource[MAX_RESOURCES]; |
| 81 | unsigned int resources; |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 82 | |
Li-Ta Lo | 0493069 | 2004-11-25 17:37:19 +0000 | [diff] [blame] | 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 */ |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 85 | struct bus link[MAX_LINKS]; |
Li-Ta Lo | 0493069 | 2004-11-25 17:37:19 +0000 | [diff] [blame] | 86 | /* number of buses attached to the device */ |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 87 | unsigned int links; |
| 88 | |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 89 | struct device_operations *ops; |
Eric Biederman | 7003ba4 | 2004-10-16 06:20:29 +0000 | [diff] [blame] | 90 | struct chip_operations *chip_ops; |
Eric Biederman | 216525d | 2004-10-16 02:48:37 +0000 | [diff] [blame] | 91 | void *chip_info; |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 92 | }; |
| 93 | |
| 94 | extern struct device dev_root; /* root bus */ |
| 95 | extern struct device *all_devices; /* list of all devices */ |
| 96 | |
| 97 | |
| 98 | /* Generic device interface functions */ |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 99 | extern device_t alloc_dev(struct bus *parent, struct device_path *path); |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 100 | extern void dev_enumerate(void); |
| 101 | extern void dev_configure(void); |
| 102 | extern void dev_enable(void); |
| 103 | extern void dev_initialize(void); |
| 104 | |
| 105 | /* Generic device helper functions */ |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 106 | extern void compute_allocate_resource(struct bus *bus, struct resource *bridge, |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 107 | unsigned long type_mask, unsigned long type); |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 108 | extern void assign_resources(struct bus *bus); |
| 109 | extern void enable_resources(struct device *dev); |
| 110 | extern void enumerate_static_device(void); |
Greg Watson | 23e2e18 | 2004-03-26 02:32:45 +0000 | [diff] [blame] | 111 | extern void enumerate_static_devices(void); |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 112 | extern const char *dev_path(device_t dev); |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 113 | |
| 114 | /* Helper functions */ |
Eric Biederman | 992cd00 | 2004-10-14 21:10:23 +0000 | [diff] [blame] | 115 | device_t find_dev_path(struct bus *parent, struct device_path *path); |
Eric Biederman | 83b991a | 2003-10-11 06:20:25 +0000 | [diff] [blame] | 116 | device_t alloc_find_dev(struct bus *parent, struct device_path *path); |
Eric Biederman | 7a5416a | 2003-06-12 19:23:51 +0000 | [diff] [blame] | 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); |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 120 | |
| 121 | /* Rounding for boundaries. |
| 122 | * Due to some chip bugs, go ahead and roung IO to 16 |
| 123 | */ |
| 124 | #define DEVICE_IO_ALIGN 16 |
| 125 | #define DEVICE_MEM_ALIGN 4096 |
| 126 | |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 127 | struct device_operations default_dev_ops_root; |
| 128 | extern void root_dev_read_resources(device_t dev); |
| 129 | extern void root_dev_set_resources(device_t dev); |
Li-Ta Lo | 89666e4 | 2004-05-07 21:54:23 +0000 | [diff] [blame] | 130 | extern unsigned int scan_static_bus(device_t bus, unsigned int max); |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 131 | extern void enable_childrens_resources(device_t dev); |
Eric Biederman | 992cd00 | 2004-10-14 21:10:23 +0000 | [diff] [blame] | 132 | extern void root_dev_enable_resources(device_t dev); |
| 133 | extern unsigned int root_dev_scan_bus(device_t root, unsigned int max); |
| 134 | extern void root_dev_init(device_t dev); |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 135 | |
| 136 | #endif /* DEVICE_H */ |