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); |
Myles Watson | 6e23576 | 2009-09-29 14:56:15 +0000 | [diff] [blame] | 18 | const char *name; |
Eric Biederman | 7003ba4 | 2004-10-16 06:20:29 +0000 | [diff] [blame] | 19 | }; |
| 20 | |
Eric Biederman | 018d8dd | 2004-11-04 11:04:33 +0000 | [diff] [blame] | 21 | #define CHIP_NAME(X) .name = X, |
Eric Biederman | 018d8dd | 2004-11-04 11:04:33 +0000 | [diff] [blame] | 22 | |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 23 | struct bus; |
| 24 | |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 25 | struct device_operations { |
Eric Biederman | 7a5416a | 2003-06-12 19:23:51 +0000 | [diff] [blame] | 26 | void (*read_resources)(device_t dev); |
| 27 | void (*set_resources)(device_t dev); |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 28 | void (*enable_resources)(device_t dev); |
Eric Biederman | 7a5416a | 2003-06-12 19:23:51 +0000 | [diff] [blame] | 29 | void (*init)(device_t dev); |
Eric Biederman | a9e632c | 2004-11-18 22:38:08 +0000 | [diff] [blame] | 30 | unsigned int (*scan_bus)(device_t bus, unsigned int max); |
Eric Biederman | 4086d16 | 2003-07-17 03:26:03 +0000 | [diff] [blame] | 31 | void (*enable)(device_t dev); |
Yinghai Lu | 7213d0f | 2004-12-03 03:39:04 +0000 | [diff] [blame] | 32 | void (*set_link)(device_t dev, unsigned int link); |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 33 | void (*reset_bus)(struct bus *bus); |
Eric Biederman | a9e632c | 2004-11-18 22:38:08 +0000 | [diff] [blame] | 34 | const struct pci_operations *ops_pci; |
| 35 | const struct smbus_bus_operations *ops_smbus_bus; |
| 36 | const struct pci_bus_operations *ops_pci_bus; |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 37 | }; |
| 38 | |
| 39 | |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 40 | struct bus { |
| 41 | device_t dev; /* This bridge device */ |
| 42 | device_t children; /* devices behind this bridge */ |
| 43 | unsigned bridge_ctrl; /* Bridge control register */ |
| 44 | unsigned char link; /* The index of this link */ |
Yinghai Lu | d4b278c | 2006-10-04 20:46:15 +0000 | [diff] [blame] | 45 | uint16_t secondary; /* secondary bus number */ |
| 46 | uint16_t subordinate; /* max subordinate bus number */ |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 47 | unsigned char cap; /* PCi capability offset */ |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 48 | unsigned reset_needed : 1; |
| 49 | unsigned disable_relaxed_ordering : 1; |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 50 | }; |
| 51 | |
Florentin Demetrescu | 10aca3c | 2008-02-01 23:14:40 +0000 | [diff] [blame] | 52 | #define MAX_RESOURCES 24 |
Yinghai Lu | 7213d0f | 2004-12-03 03:39:04 +0000 | [diff] [blame] | 53 | #define MAX_LINKS 8 |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 54 | /* |
Eric Biederman | 2c018fb | 2003-07-21 20:13:45 +0000 | [diff] [blame] | 55 | * There is one device structure for each slot-number/function-number |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 56 | * combination: |
| 57 | */ |
| 58 | |
| 59 | struct device { |
Li-Ta Lo | 0493069 | 2004-11-25 17:37:19 +0000 | [diff] [blame] | 60 | struct bus * bus; /* bus this device is on, for bridge |
| 61 | * devices, it is the up stream bus */ |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 62 | device_t sibling; /* next device on this bus */ |
| 63 | device_t next; /* chain of all devices */ |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 64 | |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 65 | struct device_path path; |
Eric Biederman | b78c197 | 2004-10-14 20:54:17 +0000 | [diff] [blame] | 66 | unsigned vendor; |
| 67 | unsigned device; |
Stefan Reinauer | debb11f | 2008-10-29 04:46:52 +0000 | [diff] [blame] | 68 | unsigned int class; /* 3 bytes: (base, sub, prog-if) */ |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 69 | unsigned int hdr_type; /* PCI header type */ |
Li-Ta Lo | 69c5a90 | 2004-04-29 20:08:54 +0000 | [diff] [blame] | 70 | unsigned int enabled : 1; /* set if we should enable the device */ |
Eric Biederman | 992cd00 | 2004-10-14 21:10:23 +0000 | [diff] [blame] | 71 | unsigned int initialized : 1; /* set if we have initialized the device */ |
Eric Biederman | dbec2d4 | 2004-10-21 10:44:08 +0000 | [diff] [blame] | 72 | unsigned int on_mainboard : 1; |
Yinghai Lu | 77cbb99 | 2005-01-13 03:36:38 +0000 | [diff] [blame] | 73 | unsigned long rom_address; |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 74 | |
Myles Watson | 29cc9ed | 2009-07-02 18:56:24 +0000 | [diff] [blame] | 75 | u8 command; |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 76 | |
Li-Ta Lo | 85e76c6 | 2004-12-27 17:53:45 +0000 | [diff] [blame] | 77 | /* Base registers for this device. I/O, MEM and Expansion ROM */ |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 78 | struct resource resource[MAX_RESOURCES]; |
| 79 | unsigned int resources; |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 80 | |
Myles Watson | 29cc9ed | 2009-07-02 18:56:24 +0000 | [diff] [blame] | 81 | /* links are (downstream) buses attached to the device, usually a leaf |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 82 | * device with no children have 0 buses attached and a bridge has 1 bus |
| 83 | */ |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 84 | struct bus link[MAX_LINKS]; |
Li-Ta Lo | 0493069 | 2004-11-25 17:37:19 +0000 | [diff] [blame] | 85 | /* number of buses attached to the device */ |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 86 | unsigned int links; |
| 87 | |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 88 | struct device_operations *ops; |
Uwe Hermann | 312673c | 2009-10-27 21:49:33 +0000 | [diff] [blame^] | 89 | const struct chip_operations *chip_ops; |
Eric Biederman | 216525d | 2004-10-16 02:48:37 +0000 | [diff] [blame] | 90 | void *chip_info; |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 91 | }; |
| 92 | |
Myles Watson | 3fe6b70 | 2009-10-09 20:13:43 +0000 | [diff] [blame] | 93 | /** |
| 94 | * This is the root of the device tree. The device tree is defined in the |
| 95 | * static.c file and is generated by the config tool at compile time. |
| 96 | */ |
| 97 | extern struct device dev_root; |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 98 | extern struct device *all_devices; /* list of all devices */ |
| 99 | |
| 100 | |
| 101 | /* Generic device interface functions */ |
Stefan Reinauer | be7f798 | 2009-03-13 15:42:27 +0000 | [diff] [blame] | 102 | device_t alloc_dev(struct bus *parent, struct device_path *path); |
| 103 | void dev_enumerate(void); |
| 104 | void dev_configure(void); |
| 105 | void dev_enable(void); |
| 106 | void dev_initialize(void); |
| 107 | void dev_optimize(void); |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 108 | |
| 109 | /* Generic device helper functions */ |
Stefan Reinauer | be7f798 | 2009-03-13 15:42:27 +0000 | [diff] [blame] | 110 | int reset_bus(struct bus *bus); |
| 111 | unsigned int scan_bus(struct device *bus, unsigned int max); |
Stefan Reinauer | be7f798 | 2009-03-13 15:42:27 +0000 | [diff] [blame] | 112 | void assign_resources(struct bus *bus); |
| 113 | void enable_resources(struct device *dev); |
| 114 | void enumerate_static_device(void); |
| 115 | void enumerate_static_devices(void); |
| 116 | const char *dev_path(device_t dev); |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 117 | const char *bus_path(struct bus *bus); |
Stefan Reinauer | be7f798 | 2009-03-13 15:42:27 +0000 | [diff] [blame] | 118 | void dev_set_enabled(device_t dev, int enable); |
| 119 | void disable_children(struct bus *bus); |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 120 | |
| 121 | /* Helper functions */ |
Eric Biederman | 992cd00 | 2004-10-14 21:10:23 +0000 | [diff] [blame] | 122 | device_t find_dev_path(struct bus *parent, struct device_path *path); |
Eric Biederman | 83b991a | 2003-10-11 06:20:25 +0000 | [diff] [blame] | 123 | device_t alloc_find_dev(struct bus *parent, struct device_path *path); |
Eric Biederman | 7a5416a | 2003-06-12 19:23:51 +0000 | [diff] [blame] | 124 | device_t dev_find_device (unsigned int vendor, unsigned int device, device_t from); |
| 125 | device_t dev_find_class (unsigned int class, device_t from); |
| 126 | device_t dev_find_slot (unsigned int bus, unsigned int devfn); |
arch import user (historical) | 98d0d30 | 2005-07-06 17:13:46 +0000 | [diff] [blame] | 127 | device_t dev_find_slot_on_smbus (unsigned int bus, unsigned int addr); |
| 128 | |
Myles Watson | bb3d812 | 2009-05-11 22:45:35 +0000 | [diff] [blame] | 129 | /* Debug functions */ |
Myles Watson | bb3d812 | 2009-05-11 22:45:35 +0000 | [diff] [blame] | 130 | void print_resource_tree(struct device * root, int debug_level, |
| 131 | const char *msg); |
| 132 | void show_devs_tree(struct device *dev, int debug_level, int depth, int linknum); |
| 133 | void show_devs_subtree(struct device *root, int debug_level, const char *msg); |
| 134 | void show_all_devs(int debug_level, const char *msg); |
Maciej Pijanka | ea92185 | 2009-10-27 14:29:29 +0000 | [diff] [blame] | 135 | void show_all_devs_tree(int debug_level, const char *msg); |
Myles Watson | bb3d812 | 2009-05-11 22:45:35 +0000 | [diff] [blame] | 136 | void show_one_resource(int debug_level, struct device *dev, |
| 137 | struct resource *resource, const char *comment); |
| 138 | void show_all_devs_resources(int debug_level, const char* msg); |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 139 | |
| 140 | /* Rounding for boundaries. |
Myles Watson | bb3d812 | 2009-05-11 22:45:35 +0000 | [diff] [blame] | 141 | * Due to some chip bugs, go ahead and round IO to 16 |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 142 | */ |
| 143 | #define DEVICE_IO_ALIGN 16 |
| 144 | #define DEVICE_MEM_ALIGN 4096 |
| 145 | |
Stefan Reinauer | be7f798 | 2009-03-13 15:42:27 +0000 | [diff] [blame] | 146 | extern struct device_operations default_dev_ops_root; |
Myles Watson | 29cc9ed | 2009-07-02 18:56:24 +0000 | [diff] [blame] | 147 | void pci_domain_read_resources(struct device *dev); |
| 148 | unsigned int pci_domain_scan_bus(struct device *dev, unsigned int max); |
Stefan Reinauer | be7f798 | 2009-03-13 15:42:27 +0000 | [diff] [blame] | 149 | void root_dev_read_resources(device_t dev); |
| 150 | void root_dev_set_resources(device_t dev); |
| 151 | unsigned int scan_static_bus(device_t bus, unsigned int max); |
| 152 | void enable_childrens_resources(device_t dev); |
| 153 | void root_dev_enable_resources(device_t dev); |
| 154 | unsigned int root_dev_scan_bus(device_t root, unsigned int max); |
| 155 | void root_dev_init(device_t dev); |
Maciej Pijanka | ea92185 | 2009-10-27 14:29:29 +0000 | [diff] [blame] | 156 | void root_dev_reset(struct bus *bus); |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 157 | #endif /* DEVICE_H */ |