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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[50]; |
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 | /* These external functions are only available when EISA support is enabled. */ |
65 | #ifdef CONFIG_EISA |
66 | |
67 | extern struct bus_type eisa_bus_type; |
68 | int eisa_driver_register (struct eisa_driver *edrv); |
69 | void eisa_driver_unregister (struct eisa_driver *edrv); |
70 | |
71 | #else /* !CONFIG_EISA */ |
72 | |
73 | static inline int eisa_driver_register (struct eisa_driver *edrv) { return 0; } |
74 | static inline void eisa_driver_unregister (struct eisa_driver *edrv) { } |
75 | |
76 | #endif /* !CONFIG_EISA */ |
77 | |
78 | /* Mimics pci.h... */ |
79 | static inline void *eisa_get_drvdata (struct eisa_device *edev) |
80 | { |
81 | return dev_get_drvdata(&edev->dev); |
82 | } |
83 | |
84 | static inline void eisa_set_drvdata (struct eisa_device *edev, void *data) |
85 | { |
86 | dev_set_drvdata(&edev->dev, data); |
87 | } |
88 | |
89 | /* The EISA root device. There's rumours about machines with multiple |
90 | * busses (PA-RISC ?), so we try to handle that. */ |
91 | |
92 | struct eisa_root_device { |
93 | struct device *dev; /* Pointer to bridge device */ |
94 | struct resource *res; |
95 | unsigned long bus_base_addr; |
96 | int slots; /* Max slot number */ |
97 | int force_probe; /* Probe even when no slot 0 */ |
98 | u64 dma_mask; /* from bridge device */ |
99 | int bus_nr; /* Set by eisa_root_register */ |
100 | struct resource eisa_root_res; /* ditto */ |
101 | }; |
102 | |
103 | int eisa_root_register (struct eisa_root_device *root); |
104 | |
105 | #ifdef CONFIG_EISA |
106 | extern int EISA_bus; |
107 | #else |
108 | # define EISA_bus 0 |
109 | #endif |
110 | |
111 | #endif |
112 |
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