Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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
34struct 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
49static 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
57struct 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
64extern struct bus_type eisa_bus_type;
65int eisa_driver_register (struct eisa_driver *edrv);
66void eisa_driver_unregister (struct eisa_driver *edrv);
67
68/* Mimics pci.h... */
69static inline void *eisa_get_drvdata (struct eisa_device *edev)
70{
71 return edev->dev.driver_data;
72}
73
74static 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
82struct 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
93int eisa_root_register (struct eisa_root_device *root);
94
95#ifdef CONFIG_EISA
96extern int EISA_bus;
97#else
98# define EISA_bus 0
99#endif
100
101#endif