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1 | #ifndef _LINUX_EISA_H | |
2 | #define _LINUX_EISA_H | |
3 | ||
4 | #include <linux/ioport.h> | |
5 | #include <linux/device.h> | |
6 | #include <linux/mod_devicetable.h> | |
7 | ||
8 | #define EISA_MAX_SLOTS 8 | |
9 | ||
10 | #define EISA_MAX_RESOURCES 4 | |
11 | ||
12 | /* A few EISA constants/offsets... */ | |
13 | ||
14 | #define EISA_DMA1_STATUS 8 | |
15 | #define EISA_INT1_CTRL 0x20 | |
16 | #define EISA_INT1_MASK 0x21 | |
17 | #define EISA_INT2_CTRL 0xA0 | |
18 | #define EISA_INT2_MASK 0xA1 | |
19 | #define EISA_DMA2_STATUS 0xD0 | |
20 | #define EISA_DMA2_WRITE_SINGLE 0xD4 | |
21 | #define EISA_EXT_NMI_RESET_CTRL 0x461 | |
22 | #define EISA_INT1_EDGE_LEVEL 0x4D0 | |
23 | #define EISA_INT2_EDGE_LEVEL 0x4D1 | |
24 | #define EISA_VENDOR_ID_OFFSET 0xC80 | |
25 | #define EISA_CONFIG_OFFSET 0xC84 | |
26 | ||
27 | #define EISA_CONFIG_ENABLED 1 | |
28 | #define EISA_CONFIG_FORCED 2 | |
29 | ||
30 | /* There is not much we can say about an EISA device, apart from | |
31 | * signature, slot number, and base address. dma_mask is set by | |
32 | * default to parent device mask..*/ | |
33 | ||
34 | struct eisa_device { | |
35 | struct eisa_device_id id; | |
36 | int slot; | |
37 | int state; | |
38 | unsigned long base_addr; | |
39 | struct resource res[EISA_MAX_RESOURCES]; | |
40 | u64 dma_mask; | |
41 | struct device dev; /* generic device */ | |
42 | #ifdef CONFIG_EISA_NAMES | |
43 | char pretty_name[DEVICE_NAME_SIZE]; | |
44 | #endif | |
45 | }; | |
46 | ||
47 | #define to_eisa_device(n) container_of(n, struct eisa_device, dev) | |
48 | ||
49 | static inline int eisa_get_region_index (void *addr) | |
50 | { | |
51 | unsigned long x = (unsigned long) addr; | |
52 | ||
53 | x &= 0xc00; | |
54 | return (x >> 12); | |
55 | } | |
56 | ||
57 | struct eisa_driver { | |
58 | const struct eisa_device_id *id_table; | |
59 | struct device_driver driver; | |
60 | }; | |
61 | ||
62 | #define to_eisa_driver(drv) container_of(drv,struct eisa_driver, driver) | |
63 | ||
64 | extern struct bus_type eisa_bus_type; | |
65 | int eisa_driver_register (struct eisa_driver *edrv); | |
66 | void eisa_driver_unregister (struct eisa_driver *edrv); | |
67 | ||
68 | /* Mimics pci.h... */ | |
69 | static inline void *eisa_get_drvdata (struct eisa_device *edev) | |
70 | { | |
71 | return edev->dev.driver_data; | |
72 | } | |
73 | ||
74 | static inline void eisa_set_drvdata (struct eisa_device *edev, void *data) | |
75 | { | |
76 | edev->dev.driver_data = data; | |
77 | } | |
78 | ||
79 | /* The EISA root device. There's rumours about machines with multiple | |
80 | * busses (PA-RISC ?), so we try to handle that. */ | |
81 | ||
82 | struct eisa_root_device { | |
83 | struct device *dev; /* Pointer to bridge device */ | |
84 | struct resource *res; | |
85 | unsigned long bus_base_addr; | |
86 | int slots; /* Max slot number */ | |
87 | int force_probe; /* Probe even when no slot 0 */ | |
88 | u64 dma_mask; /* from bridge device */ | |
89 | int bus_nr; /* Set by eisa_root_register */ | |
90 | struct resource eisa_root_res; /* ditto */ | |
91 | }; | |
92 | ||
93 | int eisa_root_register (struct eisa_root_device *root); | |
94 | ||
95 | #ifdef CONFIG_EISA | |
96 | extern int EISA_bus; | |
97 | #else | |
98 | # define EISA_bus 0 | |
99 | #endif | |
100 | ||
101 | #endif |