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1da177e4 LT |
1 | #ifndef _LINUX_EISA_H |
2 | #define _LINUX_EISA_H | |
3 | ||
4 | #include <linux/ioport.h> | |
5 | #include <linux/device.h> | |
6 | ||
7 | #define EISA_SIG_LEN 8 | |
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 | /* The EISA signature, in ASCII form, null terminated */ | |
31 | struct eisa_device_id { | |
32 | char sig[EISA_SIG_LEN]; | |
33 | unsigned long driver_data; | |
34 | }; | |
35 | ||
36 | /* There is not much we can say about an EISA device, apart from | |
37 | * signature, slot number, and base address. dma_mask is set by | |
38 | * default to parent device mask..*/ | |
39 | ||
40 | struct eisa_device { | |
41 | struct eisa_device_id id; | |
42 | int slot; | |
43 | int state; | |
44 | unsigned long base_addr; | |
45 | struct resource res[EISA_MAX_RESOURCES]; | |
46 | u64 dma_mask; | |
47 | struct device dev; /* generic device */ | |
48 | #ifdef CONFIG_EISA_NAMES | |
49 | char pretty_name[DEVICE_NAME_SIZE]; | |
50 | #endif | |
51 | }; | |
52 | ||
53 | #define to_eisa_device(n) container_of(n, struct eisa_device, dev) | |
54 | ||
55 | static inline int eisa_get_region_index (void *addr) | |
56 | { | |
57 | unsigned long x = (unsigned long) addr; | |
58 | ||
59 | x &= 0xc00; | |
60 | return (x >> 12); | |
61 | } | |
62 | ||
63 | struct eisa_driver { | |
64 | const struct eisa_device_id *id_table; | |
65 | struct device_driver driver; | |
66 | }; | |
67 | ||
68 | #define to_eisa_driver(drv) container_of(drv,struct eisa_driver, driver) | |
69 | ||
70 | extern struct bus_type eisa_bus_type; | |
71 | int eisa_driver_register (struct eisa_driver *edrv); | |
72 | void eisa_driver_unregister (struct eisa_driver *edrv); | |
73 | ||
74 | /* Mimics pci.h... */ | |
75 | static inline void *eisa_get_drvdata (struct eisa_device *edev) | |
76 | { | |
77 | return edev->dev.driver_data; | |
78 | } | |
79 | ||
80 | static inline void eisa_set_drvdata (struct eisa_device *edev, void *data) | |
81 | { | |
82 | edev->dev.driver_data = data; | |
83 | } | |
84 | ||
85 | /* The EISA root device. There's rumours about machines with multiple | |
86 | * busses (PA-RISC ?), so we try to handle that. */ | |
87 | ||
88 | struct eisa_root_device { | |
89 | struct device *dev; /* Pointer to bridge device */ | |
90 | struct resource *res; | |
91 | unsigned long bus_base_addr; | |
92 | int slots; /* Max slot number */ | |
93 | int force_probe; /* Probe even when no slot 0 */ | |
94 | u64 dma_mask; /* from bridge device */ | |
95 | int bus_nr; /* Set by eisa_root_register */ | |
96 | struct resource eisa_root_res; /* ditto */ | |
97 | }; | |
98 | ||
99 | int eisa_root_register (struct eisa_root_device *root); | |
100 | ||
101 | #ifdef CONFIG_EISA | |
102 | extern int EISA_bus; | |
103 | #else | |
104 | # define EISA_bus 0 | |
105 | #endif | |
106 | ||
107 | #endif |